This tire 1 comprises, on a tire side part, marks 2 which have a prescribed vertical direction. The marks 2 are each disposed such that the lower part thereof is oriented outward in the tire radial direction. The tire 1 comprises a plurality of the marks 2, 2, which are disposed so as to be spaced in the tire circumferential direction. The plurality of marks 2, 2 are each disposed such that the lower part thereof is oriented outward in the tire radial direction. The tire 1 also comprises, on the tire side part, a surface processing region 3 in which a plurality of protrusions and recesses are arranged, and smooth regions 4 which have a smooth surface. Each mark 2 is disposed entirely in a smooth region 4.
The present technology discloses in one of the embodiments a rubber composition for tires including, per 100 parts by mass of a diene-based rubber containing a SBR having a styrene content of 30 mass % or more, from 140 to 300 parts by mass of a silica having a N2SA of from 100 to 300 m2/g and a value of a nitrogen-adsorption specific surface area N2SA/CTAB specific surface area of 1.10 or less, 15 parts by mass or more of aluminum hydroxide, 5 parts by mass or more of a liquid styrene-butadiene copolymer rubber having a vinyl content of 50 mass % or more and being unmodified, and 15 parts by mass or more of a tackifier resin having a softening point of from 60 to 180° C.
Provided are: a pneumatic tire which has improved adhesion between a tire inner surface and a sealant layer, thereby enabling an improvement in durability; and a production method for the pneumatic tire. The pneumatic tire includes a tread part 1 which is annular and extends along the tire circumferential direction, a pair of sidewalls 2 disposed on both sides of the tread part 1, and a pair of beads 3 disposed on the inner side of the sidewalls 2 in the tire radial direction. The pneumatic tire has a release layer 10 comprising a silicone-based composition on a tire inner surface Ts and has a sealant layer 20 formed on the tire-radial-direction inner side of the release layer 10 in the tread part 1. The sealant of the sealant layer 20 is made of a silicone-based composition. The absolute value of the difference between the contact angle of water on the release layer 10 and the contact angle of water on the sealant layer 20 is 30° or less.
Provided are a pneumatic tire with which a tire gauge of a shoulder part can be sufficiently secured and tire durability and puncture sealability can both be achieved by devising a carcass structure, and a method for manufacturing the same. In a pneumatic tire having a structure in which a carcass layer 4 is wound around a bead core 5 of a bead portion 3 from the inner side to the outer side of the tire, final ends 4e of wound portions 4B of the carcass layer 4 are disposed inward of end parts 7e of a belt layer 7 in the tire width direction, a sealant layer 20 is formed on a tire inner surface 10 in a tread portion 1, and end parts 20e of the sealant layer 20 in the tire width direction are positioned at the shoulders and disposed outward of the final ends 4e of the wound portions 4B of the carcass layer 4 in the tire width direction.
B60C 5/00 - Inflatable pneumatic tyres or inner tubes
B60C 9/22 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
B60C 15/00 - Tyre beads, e.g. ply turn-up or overlap
C09K 3/10 - Materials not provided for elsewhere for sealing or packing joints or covers
C09K 3/12 - Materials not provided for elsewhere for stopping leaks, e.g. in radiators or in tanks
Provided is a rubber composition for a heavy duty tire that can provide wear resistance and fuel economy performance improved to a level higher than that in the related art, and can provide satisfactory workability and tensile strength in a well-balanced and compatible manner. The rubber composition contains silica in amount of 40 parts by mass or more per 100 parts by mass of a diene rubber, the diene rubber containing an isoprene rubber in an amount from 60 mass % to 85 mass % and a modified styrene-butadiene rubber having a glass transition temperature of lower than −50° C. in an amount from 15 mass % to 40 mass %, and contains a silane coupling agent in an amount from 1 mass % to 20 mass % with respect to a blended amount of the silica.
Provided are a manufacturing method that enables manufacture of a bent resin pipe with reduced variation in pipe wall thickness over the whole length of the pipe even when the pipe length is long, and the bent resin pipe. When a bent resin pipe 1 having a pipe length of 350 mm or greater is manufactured, molten resin R1 is injected by an injection machine 7 from one end 13a toward the other end 13b of a cavity 13 extending with a bent portion 13c in a mold 12, and then a gas is injected as an assist material As from the other end 13b toward the one end 13a of the cavity 13 at a predetermined injection pressure to discharge an excess molten resin R1 from the cavity 13, whereby the bent resin pipe 1 composed of a cured resin R2 obtained by curing a cylindrical molten resin R1 left in the cavity 13 is manufactured.
B29C 45/17 - Component parts, details or accessoriesAuxiliary operations
B29C 33/14 - Moulds or coresDetails thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels against the mould wall
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
B29C 45/57 - Exerting after-pressure on the moulding material
Provided are: a pneumatic tire that uses a release agent to prevent vulcanization failure while preventing a sealant layer from peeling off; and a manufacturing method therefor. The pneumatic tire comprises: a tread portion 1 that extends in the circumferential direction of the tire and forms an annular shape; a pair of sidewall portions 2 arranged on both sides of the tread portion 1; and a pair of bead portions 3 arranged on the inner sides of the sidewall portions 2 in the radial direction of the tire. In a pneumatic tire having a tire inner surface 10 coated with a release agent 16 containing particles 15, a sealant layer 20 is formed on the tire inner surface 10 in the tread portion 1, a sealant in the sealant layer 20 is composed of a silicone-based composition, and the particles 15 applied to an area for arranging the sealant layer 20 are spread into the sealant layer 20.
Provided are: a pneumatic tire in which thermal shrinkage of a belt cover layer due to heating during the formation of a sealant layer is suppressed and thus it is possible to reduce distortion in the tire and improve durability; and a manufacturing method therefor. In a pneumatic tire comprising a tread portion 1, a pair of sidewall portions 2, and a pair of bead portions 3, a belt layer 7 including belt cords inclined with respect to the circumferential direction of the tire, and a belt cover layer 8 which is disposed on the outer circumferential side of the belt layer 7 and includes organic fiber cords oriented in the circumferential direction of the tire are embedded in the tread portion 1. The thermal shrinkage of the organic fiber cords in the belt cover layer 8 at 180°C is in the range of 0.1-5.0%. A sealant layer 20 is formed on a tire inner surface 10 in the tread portion 1. A sealant in the sealant layer 20 is composed of a silicone-based composition.
B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
B60C 5/00 - Inflatable pneumatic tyres or inner tubes
B60C 9/00 - Reinforcements or ply arrangement of pneumatic tyres
B60C 9/22 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
C09K 3/10 - Materials not provided for elsewhere for sealing or packing joints or covers
C09K 3/12 - Materials not provided for elsewhere for stopping leaks, e.g. in radiators or in tanks
The present invention provides: a pneumatic tire that makes it possible for a sealant layer to maintain good sealing properties; and a method for manufacturing the pneumatic tire. This pneumatic tire comprises: a tread 1 extending in the circumferential direction of a tire and forming an annular shape; a pair of side walls 2 disposed on both sides of the tread 1; and a pair of beads 3 disposed on the inner side of the side walls 2 in the radial direction of the tire. The tread1 has formed on a tire inner surface 10A thereof a sealant layer 20 having a structure in which a band material 21 of a sealant is spirally disposed along the tire circumferential direction, the sealant being constituted by a silicone-based composition.
Provided are: a pneumatic tire capable of satisfactorily retaining sealability by a sealant layer, and further capable of suppressing separation of the sealant layer; and a manufacturing method for the same. A tread part 1 has embedded therein a plurality of belt layers 7 that include belt cords inclined with respect to the tire circumferential direction and are arranged such that the belt cords cross each other between the layers. The belt layers 7 include a first belt layer 7A positioned at the innermost side in the tire radial direction and a second belt layer 7B positioned at the outer side of the first belt layer. A tire inner surface 10 at the tread part 1 has formed thereon a sealant layer 20 that has a structure in which a band member 21 of sealant is spirally arranged along the tire circumferential direction. The sealant is composed of a silicone-based composition. When the angle θ formed between a belt cord of the first belt layer 7A and a belt cord of the second belt layer 7B is 110° or less, the inclination direction of the band member 21 of the sealant is the same as the inclination direction of the belt cord of the first belt layer 7A, whereas when the angle θ is more than 110°, the inclination direction of the band member 21 of the sealant is reverse to the inclination direction of the belt cord of the first belt layer 7A.
Provided are: a pneumatic tire in which thermal shrinkage of a carcass layer due to heating during the formation of a sealant layer is suppressed and thus it is possible to reduce distortion in the tire and improve durability; and a manufacturing method therefor. In a pneumatic tire comprising a tread portion 1, a pair of sidewall portions 2, and a pair of bead portions 3, a carcass layer 4 including a plurality of carcass cords extending in the radial direction of the tire is installed between the pair of bead portions 3, 3. The thermal shrinkage of the carcass cords in the carcass layer 4 at 180°C is in the range of 0.2-4.0%. A sealant layer 20 is formed on a tire inner surface 10 in the tread portion 1. A sealant in the sealant layer 20 is composed of a silicone-based composition.
Provided is a conveyor belt operation management system and method that, with a simple configuration, can accurately ascertain the operation status of a conveyor belt. Based on a reception time t at which after an outgoing radio wave R1 is transmitted from a detector 7 located at a predetermined detection position P of a conveyor device 10 toward a passive type IC tag 2 installed on a conveyor belt 13, a return radio wave R2 returned from the IC tag 2 in response to the outgoing radio wave R1 is received by the detector 7, a running speed V of the conveyor belt 13 is calculated by an arithmetic device 8 to ascertain the operation status of the conveyor belt 13 on the basis of temporal changes in the running speed V, and the arithmetic device 8 transmits data DV on the temporal changes of the running speed V to a terminal device 9 through a communication network, the terminal device 9 being located at a position away from the installation site of the conveyor device 10.
B65G 43/02 - Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load- carriers, e.g. for interrupting the drive in the event of overheating
13.
HOSE FOR REFRIGERANT TRANSPORTATION AND PRODUCTION METHOD THEREFOR
A hose for refrigerant transportation includes an outer layer, a reinforcing layer, and an inner layer. The outer layer is composed of a resin composition containing elastomer having a polyisobutylene backbone and crosslinked resin. A content of the elastomer having a polyisobutylene backbone in the resin composition is 30 mass % or more and 90 mass % or less with respect to a mass of the resin composition. A content of the crosslinked resin in the resin composition is 10 mass % or more and 70 mass % or less with respect to the mass of the resin composition. A water vapor permeability of the resin composition is 2.0 g·mm/(m2·24 h) or less. A ratio TB100/TB25 of a strength at break TB100 of the resin composition at 100° C. to a strength at break TB25 of the resin composition at 25° C. is from 0.2 to 1.0.
B32B 25/08 - Layered products essentially comprising natural or synthetic rubber comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
B32B 25/18 - Layered products essentially comprising natural or synthetic rubber comprising butyl or halobutyl rubber
Provided are a method of manufacturing a tire and a system for manufacturing a tire. A plurality of forming drum bodies are allowed to be temporarily placed on a placement device between work stations adjacent to each other, and at least three of the work stations adjacent to each other are provided in the forming step. In accordance with a specification of a green tire, a plurality of the work stations necessary are selected, and a movement path of the forming drum body is determined. A robot arm disposed at a position corresponding to the movement path is used, the placement device disposed at a position corresponding to the movement path is utilized to deliver the forming drum body, thereby the forming drum body is moved along the movement path, and a forming work is performed in each of the selected work stations to form the green tire.
Provided is a tire in which further improvement in rough road traveling performance can be achieved while ensuring excellent block durability. A plurality of shoulder blocks (12) are provided in a shoulder region of a tread portion (1), a plurality of side blocks (13) are provided in a side region that is adjacent to the outer side of the shoulder region in a tire width direction, two or more shoulder blocks (12) adjacent to each other in a tire circumferential direction and one side block (13) disposed on the outer side in the tire width direction are defined as a block group (B), a bent side groove (20) that is terminated in the side block (13) is formed on an extension line of a shoulder lug groove (11) disposed between the pair of shoulder blocks (12) included in the block group (B), and the bent side groove (20) includes a connection portion (21) that extends from the end position of the shoulder lug groove (11) toward the inner side in a tire radial direction, and a reversed portion (22) that is bent to one side in the tire circumferential direction from an end portion in the inner side in the tire radial direction, of the connection portion (21) and extends toward the outer side in the tire radial direction.
To determine the magnitude of variation in predetermined quality in a longitudinal direction of an elongated tire member formed by bonding a plurality of types of constituent members, X-rays are applied to a predetermined length range of a tire member, which is elongated, from a top surface side of the tire member while conveying the tire member in a longitudinal direction using a conveying device to acquire image data based on X-ray transmittance of the predetermined length range. The image data is input into a calculation device. Based on contrast in the image data, the magnitude of variation in the dimension in the width direction of a constituent member in the longitudinal direction is calculated by the calculation device, the constituent member being formed of unvulcanized rubber having a larger mass and a higher content rate of a specific component in the tire member.
B29D 30/00 - Producing pneumatic or solid tyres or parts thereof
G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
G01N 23/083 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
G01N 23/18 - Investigating the presence of defects or foreign matter
Continuously performed is a process of applying, by an X-ray inspection device, X-rays to a predetermined length range from a top surface side of a tire member while conveying the tire member in a longitudinal direction by using a conveying device to acquire image data based on X-ray transmittance. The image data of the predetermined length range continuous without gaps in the longitudinal direction is acquired. Based on contrast in each piece of the image data, a magnitude of variation in the longitudinal direction of a distribution of a constituent member formed of unvulcanized rubber having a larger mass and a higher content rate of a specific component in the tire member is calculated by a calculation device. The variation is corrected by controlling, based on the magnitude of the variation, a rotation speed of a screw disposed in at least one extruder by a control device.
B29L 30/00 - Pneumatic or solid tyres or parts thereof
G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
G01N 23/18 - Investigating the presence of defects or foreign matter
18.
TIRE MANUFACTURING METHOD AND MANUFACTURING SYSTEM
Provided is a method of manufacturing a tire and a system for manufacturing a tire. A forming drum body to which a tire component is bonded after completion of a forming operation in an operation station is temporarily placed in a placement apparatus. While the forming drum body is temporarily placed in the placement apparatus, the mass of the green tire is inspected by a mass meter as a predetermined quality of a green tire formed by the tire component bonded to the forming drum body during forming or after completion of the forming, and the profile shape of the green tire is inspected by a profile sensor.
This tire comprises a belt-coating rubber and a carcass-coating rubber. The belt-coating rubber contains specific amounts of a diene rubber that includes a natural rubber, a filler that comprises carbon black and silica, a cobalt salt of an organic acid, a phenolic resin, and a curing agent and has a dynamic storage modulus (Belt E') at 20°C of at least 13 MPa. The ratio (Belt E')/(Carcass E') of the dynamic storage modulus (Belt E') at 20°C of the belt-coating rubber and the dynamic storage modulus (Carcass E') at 20°C of the carcass-coating rubber is 2.5–3.5.
B60C 9/20 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
B60C 9/04 - Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
Provided is a tire with which a further improvement in rough road running performance can be achieved while ensuring excellent block durability. A plurality of shoulder blocks 12 are provided in a shoulder region of a tread portion 1, a plurality of side blocks 13 are provided in a side region adjacent to the shoulder region on the outer side in the width direction of the tire, two or more shoulder blocks 12 adjacent to one other in the circumferential direction of the tire and one side block 13 disposed on the outer side thereof in the width direction of the tire are defined as a block group B, a first narrow groove 21, a second narrow groove 22, and a third narrow groove 23 are provided in each block included in the block group B, and the narrow grooves constitute a series of narrow groove groups 20 that extend continuously from one shoulder block 12 included in the block group B through the side block 13 to the other shoulder block 12.
Provided are a functional-component-attached housing body and a tire which are capable of improving sensing stability and the durability of a housing body while improving measurement performance of tire information by enhancing the sensing sensitivity of a functional component. This functional-component-attached housing body comprises a functional component having a sensor function for detecting tire information, and a housing body 10 in which the functional component is housed. A bottom part 11 of an inner surface of the housing body 10 has a sea-island structure composed of: at least one island part A formed as a protrusion and positioned in a lower region of a sensing part of the functional component during the housing of the functional component; at least one island part B formed as a protrusion and arranged around the island part A; and a sea part C, which is formed as a recess and is a region excluding the island part A and the island part B.
Provided are a piping structure of a heat exchanger and a manufacturing method therefor which make it possible to eliminate complexity of a manufacturing process and to inhibit thermal deterioration of members in the manufacturing process. Portions between manifolds 4A, 4B and an outer pipe 3, which are externally inserted onto an inner pipe 2, are sealed by annular seal materials S1. Portions between the manifolds 4A, 4B and the inner pipe 2 are sealed by annular seal materials S2. Longitudinal end parts of the outer pipe 3 are shut by the manifolds 4A, 4B, and bead parts 2a, 2b which protrude to the outer circumferential side is formed on the outer circumferential surface of the inner pipe 2 at longitudinally spaced-apart two portions. One manifold 4A is held between one bead part 2a and one longitudinal end of the outer pipe 3, and is located to be regulated from moving in the longitudinal direction, and the other manifold 4B is held between the other bead part 2b and the other longitudinal end of the outer pipe 3, and is located to be regulated from moving in the longitudinal direction. Pipes 5a, 5b are connected to the manifolds 4A, 4B by brazing.
F28D 7/10 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
B23K 1/00 - Soldering, e.g. brazing, or unsoldering
F28F 1/00 - Tubular elementsAssemblies of tubular elements
F28F 11/00 - Arrangements for sealing leaky tubes or conduits
A pneumatic tire 1 comprises: a ridge region 50 in which a plurality of ridges 55 are disposed, the ridge region 50 being formed on a tire side part 31 which is the surface of a side wall part 30; and a plurality of projection patterns 60 which are disposed in the ridge region 50 at a height higher than the ridges 55 in the height direction of the ridges 55, and extend in a direction crossing the extension direction of the ridges 55. The plurality of projection patterns 60 includes a projection pattern 60 in contact with a contour part 51 on the outside of the ridge region 50 in the tire radius direction, and a projection pattern 60 spaced apart from the contour part 51 of the ridge region 50, and thus suppress the extension of cracks to continuously maintain an attractive appearance while suppressing a decrease in mold processability.
Provided are a piping structure of a heat exchanger and a manufacturing method for the same, by which it is possible to eliminate complexity of the manufacturing process, suppress thermal deterioration of members in the manufacturing process, and separate a double pipe portion. A space between an outer pipe 3 and a manifold 4A, 4B externally inserted into an inner pipe 2 is sealed by an annular seal material S1. A screw part 4g of the manifold 4A, 4B and a screw part 7c of a connecting body 7A, 7B are screwed together; a flare part 2a, 2b and a tapered cylinder part 6a of a connection inner pipe 6 inserted into the flare part 2a, 2b are pressed from an outer circumferential side by an inner circumferential surface of a tapered through-hole 4c of the manifold 4A, 4B to bring the tapered cylinder part 6a, the flare part 2a, 2b, and the inner circumferential surface of the tapered through-hole 4c to close contact in an integrated manner to seal the space between the manifold 4A, 4B and the inner pipe 2. The manifold 4A, 4B is held between the connecting body 7A, 7B and a longitudinal end of the outer pipe 3 to restrict movement in the longitudinal direction, and pipe bodies 5a, 5b are respectively connected to the manifolds 4A, 4B by brazing.
F28D 7/10 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
B23K 1/00 - Soldering, e.g. brazing, or unsoldering
F28F 1/00 - Tubular elementsAssemblies of tubular elements
F28F 11/00 - Arrangements for sealing leaky tubes or conduits
26.
AIR PRESSURE MANAGEMENT DEVICE AND AIR PRESSURE MANAGEMENT METHOD
Provided are an air pressure management device and an air pressure management method capable of accurately determining the presence or absence of an abnormality in the air pressure of a tire and the abnormality type. A cloud server 30 serving as an air pressure management device includes an abnormality determining unit 36 that determines the presence or absence of an abnormality in a tire 2 and the type of the abnormality on the basis of the comparison result between a reference air pressure and a temperature-converted air pressure, wherein the abnormality determining unit 36 includes: a first abnormality determining unit 36A which determines that there is an abnormality in the tire 2 if a difference value between the reference air pressure and the temperature-converted air pressure is equal to or greater than a first threshold K1, and determines that the type of the abnormality is a puncture of the tire 2 if the difference value is equal to or greater than a second threshold K2 larger than the first threshold; and a second abnormality determining unit 36B which determines whether the type of the abnormality is a slow leak or natural leakage of the tire 2 if the difference value is equal to or greater than the first threshold K1 and smaller than the second threshold K2.
Provided is a tire with which snow performance can be improved without impairing wear resistance. A tread portion 1 is provided with a center land portion 12c, intermediate land portions 12m, and shoulder land portions 12s that are demarcated by four main grooves 11 extending linearly in the circumferential direction of the tire, wherein: the center land portion 12c is demarcated into a plurality of center blocks 14c by center inclined grooves 13c; each intermediate land portion 12m is demarcated into a plurality of intermediate blocks 14m by intermediate inclined grooves 13m; a shoulder circumferential narrow groove 20, first shoulder lateral grooves 21 that are connected to the shoulder circumferential narrow groove 20 and that do not reach the main groove 11, and second shoulder lateral grooves 22 that open in the main groove 11, intersect the shoulder circumferential narrow groove 20, and terminate in a land portion are provided in each shoulder land portion 12s; and two or more sipes 16 that extend in the width direction of the tire are provided in main parts of each of the center block 14c, the intermediate blocks 14m, and the shoulder land portions 12s.
A two-pack type curable adhesive composition includes a base containing a urethane prepolymer having an isocyanate group, and a curing agent. At least one of the base and the curing agent contains polymer particulates having an average particle size of from 0.01 to 200 μm, the polymer particulates having a glass transition temperature of from −40° C. to +80° C., a content of the polymer particulates is ≥5 mass % in a total amount of the adhesive composition. A cured product of the adhesive composition has a loss tangent of ≥0.15 under a temperature region of from −40° C. to +80° C. and a frequency of 100 Hz, and the cured product not breaking under a stress amplitude of 2.8 MPa and a repetition number of up to 107 times in a tensile shear fatigue property test JIS K6864.
A pneumatic tire includes: a tread portion extending in a tire circumferential direction and having an annular shape; a pair of sidewall portions disposed on both sides of the tread portion; and a pair of bead portions disposed on an inner side in a tire radial direction of the sidewall portions. The tire is embedded with a transponder covered with a covering layer. A modulus M50 (0° C.) at 50% deformation at 0° C. of the covering layer is in a range of from 0.5 MPa to 2.0 MPa, and a modulus M50 (−20° C.) at 50% deformation at −20° C. of the covering layer and the modulus M50 (0° C.) at 50% deformation at 0° C. of the covering layer satisfy a relationship 1.0
A pneumatic tire includes: a tread portion extending in a tire circumferential direction and having an annular shape; a pair of sidewall portions disposed on both sides of the tread portion; and a pair of bead portions disposed on an inner side in a tire radial direction of the sidewall portions. The tire is embedded with a transponder covered with a covering layer. A modulus M50 (20° C.) at 50% deformation at 20° C. of the covering layer being in a range of from 0.4 MPa to 1.5 MPa, and the modulus M50 (20° C.) at 50% deformation at 20° C. of the covering layer and a modulus M50 (100° C.) at 50% deformation at 100° C. of the covering layer satisfying a relationship 1.0
The purpose of the present invention is to suppress detachment from an eye joint metal fitting and to reduce costs. The present invention is provided with uneven parts 18 (a cylindrical part-side uneven part 20 and a shaft part-side uneven part 22), which allow detachable engagement with an inner peripheral part of a cylindrical part 1204 and an outer peripheral part of a shaft part 1404, and hold a state where the shaft part 1404 is inserted into the cylindrical part 1204. The cylindrical part-side uneven part 20 is configured such that a plurality of inner peripheral part-side protruding parts 2002 protruding from the inner peripheral part and extending in the circumferential direction of the inner peripheral part are arranged in the axial direction of the cylindrical part 1204. The shaft part-side uneven part 22 is configured such that a plurality of outer peripheral part-side protruding parts 2202 protruding from the outer peripheral part, extending in the circumferential direction of the outer peripheral part, and detachably engaging with the inner peripheral part-side protruding parts 2002 are arranged in the axial direction of the shaft part 1404.
The present invention eliminates the necessity of manufacturing a dust cap for an eye joint for each type of a variety of eye joint metal fittings and reduces manufacturing volume and storage space to cut the costs of dust caps for eye joints. This dust cap for an eye joint comprises: a pair of lid parts 12, 14 covering end surface parts on both sides of an eye joint body; and a connection piece 16 connecting the pair of lid parts 12, 14. One lid part 12 includes a lid plate part 1202 covering the end surface part, and a cylindrical part 1204 protruding from the lid plate part 1202. The other lid part 14 includes a lid plate part 1402 covering the end surface part, and a shaft part 1404 protruding from the lid plate part 1402, and has a holding part 18 that releasably holds a state in which the shaft part 1404 is inserted in the cylindrical part 1204. The cylindrical part 1204 and the shaft part 1404 are detachably mounted to the lid plate parts 12, 14, respectively.
Provided is a crimping claw 14 capable of coupling a hose 12 and a hose joint fitting 10 with a coupling force as designed. An inner peripheral surface 1402 of the crimping claw 14 is provided with an elongation prevention part 22A that increases a gripping force on an outer peripheral surface 1808 of a socket 18 and prevents elongation to an opening 2002 side of an annular space 20 in the axial direction of the socket 18 during crimping. The entire area of the inner peripheral surface 1402 of the crimping claw 14 is formed with a surface roughness of from Ra12.5S to Ra25S inclusive. Thus, the inner peripheral surface 1402 of the crimping claw 14 is formed to have high frictional resistance against the outer peripheral surface 1808 of the socket 18 when the inner peripheral surface 1402 of the crimping claw 14 is brought into pressure contact with the outer peripheral surface 1808 of the socket 18. The elongation prevention part 22A is constituted by the inner peripheral surface 1402 of the crimping claw 14 having such a surface roughness.
F16L 33/207 - Undivided rings, sleeves, or like members contracted on the hose or expanded inside the hose by means of toolsArrangements using such members only a sleeve being contracted on the hose
Provided is a tire capable of reducing vehicle external noise and improving soil discharge performance from shoulder lug grooves. The tire includes an annular tread portion 1 that extends in the circumferential direction of the tire, wherein a main groove 10 extending in the circumferential direction of the tire and a plurality of shoulder lug grooves 25 extending in the width direction of the tire are formed in the tread portion 1, one end of each shoulder lug groove 25 communicating with the main groove 10, and the other end being located on the outer side, in the width direction of the tire, of a ground contact edge E of the tread portion 1, and wherein: each shoulder lug groove 25 has a bottom raised portion 51 in a part adjacent to the main groove 19, and has a slope portion 52 in which the groove depth of the shoulder lug groove 25 gradually increases from the bottom raised portion 51 toward the outer side in the width direction of the tire; groove depths Da and Db of the shoulder lug grooves 25 at a start point A and an end point B of the slope portion 52 satisfy the relationship 1.5 ≤ Db/Da ≤ 2.0; and a length Ls, in the width direction of the tire, of the slope portion 52 satisfies the relationship 0.5 ≤ Ls/L ≤ 0.8 with respect to a distance L in the width direction of the tire from the main groove 10 to the ground contact edge E.
Provided is a pneumatic tire in which fiber reinforced layers on an outer side of a steel reinforced layer in a width direction each include fiber cords arranged in one direction, the fiber cords being oriented to cross each other between layers, a radially outer end of one of the fiber reinforced layers being radially outward of a turned-up end portion of a carcass layer, a radially outer end portion of another one of the fiber reinforced layers being radially inward of the turned-up end portion and radially outward of a line segment (K). Radially inner end portions of the fiber reinforced layers are inward in the width direction of a line segment (J), and cord angles θA and θB of the fiber reinforced layers satisfy 20°≤|θA|≤45° or 70°≤|θA|≤90°, and 20°≤|θB|≤45° or 70°≤|θB|≤90°.
Provided is a tire with which a further improvement in rough road running performance can be achieved while ensuring excellent block durability. A plurality of shoulder blocks 12 are provided in a shoulder region of a tread portion 1, a plurality of side blocks 13 are provided in a side region that is adjacent to the shoulder region on the outer side thereof in the width direction of the tire, one side block 13 is disposed in a position on the outer side, in the width direction of the tire, of a block group comprising two or more shoulder blocks 12 adjacent to one other in the circumferential direction of the tire, a bent recessed portion 20 comprising a first recessed portion 21 and a second recessed portion 22 that extend in the circumferential direction of the tire and a third recessed portion 23 that connects the first recessed portion 21 and the second recessed portion 22 and that extends obliquely with respect to the circumferential direction of the tire is provided on a side surface of each shoulder block 12, and a bent projecting portion comprising a first projecting portion 31 and a second projecting portion 32 that extend in the circumferential direction of the tire and a third projecting portion 33 that connects the first projecting portion 31 and the second projecting portion 32 and that extends obliquely with respect to the circumferential direction of the tire is provided on the surface of each side block 13.
Among a plurality of circumferential grooves 30 provided in a pneumatic tire 1, an inner shoulder circumferential groove 31, which is the innermost circumferential groove 30 in a vehicle mounting direction, and an inner center circumferential groove 32, which is a circumferential groove 30 adjacent to the inner shoulder circumferential groove 31, are positioned on an inner side in the vehicle mounting direction with respect to a tire equatorial plane CL. The inner shoulder circumferential groove 31 satisfies the relationship A > B between a groove wall angle A of a groove wall 31a positioned closer to the inner side in the vehicle mounting direction and a groove wall angle B of the groove wall 31a positioned closer to an outer side in the vehicle mounting direction. The groove wall angle A is in the range of 13° to 20°, and the groove wall angle B is in the range of 8° to 12°. For the inner center circumferential groove 32, a groove wall angle C of a groove wall 32a positioned closer to the inner side in the vehicle mounting direction and a groove wall angle D of the groove wall 32a positioned closer to the outer side in the vehicle mounting direction are both in the range of 8° to 12°; therefore, the pneumatic tire 1 can achieve both NV performance and wet performance.
Provided is a tire which enables improvement of snow performance without impairing wear resistance. In the tire, a tread part is provided with a center land part, intermediate land parts, and shoulder land parts which are demarcated by four main grooves extending linearly along the tire circumferential direction. The center land part is divided into a plurality of center blocks by center inclined grooves. Each of the intermediate land parts is divided into a plurality of intermediate blocks by intermediate inclined grooves. Each of the shoulder land parts is divided into a plurality of shoulder blocks by shoulder lateral grooves. The center inclined grooves and the intermediate inclined grooves are inclined in opposite directions with respect to the tire width direction. Shallow grooves are provided at the positions extending from the intermediate inclined grooves in the center blocks in a manner as to extend in the same direction as the intermediate inclined grooves and to terminate within the center blocks without passing through the tire center line. Two or more sipes extending along the tire width direction are provided on each of the center blocks, the intermediate blocks, and the shoulder blocks.
In a pneumatic tire including a belt reinforcing layer and a tread portion made up of cap tread and under tread layers, a polyethylene terephthalate fiber cord constituting the belt reinforcing layer has an elongation ratio of 2.0-4.0% under a load of 2.0 cN/dtex at 100° C., the under tread layer is made of a rubber composition blending, per 100 parts by mass of rubber component, 35-60 parts by mass of carbon black having a CTAB adsorption specific surface area of less than 70 m2/g and 3-30 parts by mass of silica having the CTAB adsorption specific surface area of less than 180 m2/g and has a hardness at 20° C. from 60-65, a tensile stress at 100% elongation at 100° C. of 2.0-4.0 MPa, and a product of a tensile strength at 100° C. and an elongation at break at 100° C. of 2000 or more.
B60C 11/00 - Tyre tread bandsTread patternsAnti-skid inserts
B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
B60C 9/22 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
Provided are a method and a system for producing a tire, with which the operation efficiency in tire molding steps is heightened by reducing time losses attributable to material replenishment, while making a molding device compact. Each material is stocked in a wound state in a plurality of supply units placed side by side. A pair of bead members MC is stocked in a plurality of bead supply units 11. The materials each cut into a predetermined size are supplied to a band drum 3 and a belt drum 4 with supply conveyors via slide conveyors to mold an inner-periphery-side member MA and an outer-periphery-side member MB. In a shaping drum 2, the inner-periphery-side member MA, the outer-periphery-side member MB, and a pair of bead members MC are used to mold a green tire G. During the conveyance of the materials, the axial centers C1 of the drums 2 and 3 are set coaxial and the axial centers C2 of the drums 3 and 4 are set coaxial. While each material is being supplied from one supply unit, the other supply unit being empty is replaced by a supply unit stocked with the material.
Provided are a production device and method with which it is possible to produce a high-quality cylindrical tire member with excellent productivity by smoothly and quickly supplying a belt-form tire material, which is supplied in a flat state by a plurality of conveyors arranged in parallel, to a molding drum body and accurately positioning the tire material in the drum width direction. An upper structure part 4 that includes a molding drum body 6 is disposed on a base part 3. The base part 3 and the upper structure part 4 are connected by a vertical movement mechanism 9. A slide movement mechanism 8 moves a drum unit 2, which includes the base part 3, the upper structure part 4, and the vertical movement mechanism 9, as an integrated unit in the drum width direction. The vertical movement mechanism 9 moves the upper structure part 4 in the vertical direction to move the molding drum body 6 to a winding position. At the winding position, a drum movement mechanism 7 separate from the slide movement mechanism 8 moves the molding drum body 6 in the drum width direction to wind tire materials M1, M2 around the molding drum body 6 while correcting any variation in the drum-width-direction positions of the tire materials M1, M2.
Provided are a production device and method for a cylindrical tire member that make it possible for a belt-shaped tire material that is being supplied to be wound both easily and so as to be positioned at a reference position on a forming drum body as a result of the forming drum body being moved in a drum width direction and that also make it possible to accurately ascertain how well the tire material is positioned. A drum movement mechanism 7 moves a forming drum body 6 and sensors 10a, 10b in a drum width direction, the sensors 10a, 10b sequentially detect data about the position in the width direction on the forming drum body 6 of a tire material M supplied in a flat state by a conveyor 16a, and the position in the width direction over the entire length of the tire material M1 relative to a reference position in the width direction on the forming drum 6 is calculated on the basis of data about the installation position in the width direction of the sensors 10a, 10b relative to the forming drum body 6 and data about the position in the width direction of the tire material M1 that is sequentially inputted to a control unit 17.
Provided are: a system for supplying tire material and a tire manufacturing method that make it possible to further reduce a time loss caused by replenishment of a tire material while achieving a compact molding device. A plurality of supply units 7A, 7B in which a tire material M3 is stocked in a wound state are arranged in parallel, and the tire material M3 delivered from one supply unit 7A and subjected to constant cutting is supplied, by using a slide conveyor 7d moving in sliding manner in the parallel direction of the supply units 7A, 7B, to a supply conveyor 7d and a belt drum 3 mounted at a prescribed fixed position, is wound around the belt drum 3, and is molded into a cylindrical shape. When the tire material M3 in the one supply unit 7A becomes empty, the tire material M3 is supplied from the other supply unit 7B, and while the tire material M3 is being supplied from the other supply unit 7B, the empty one supply unit 7A is replaced with a new supply unit 7A stocked with the tire material M3.
Provided are: a supply system for efficiently supplying a plurality of types of tire materials to one forming drum body while making a tire forming device compact; and a tire manufacturing method. Supply units 5, 6 in which different types of tire materials M1, M2 are stocked in a wound state are arranged at adjacent stock positions P1, P2. A turning conveyor 5e that turns is arranged between the respective supply units 5, 6 and a supply conveyor 6e in plan view such that the supply directions of the tire materials M1, M2 delivered from the respective supply units 5, 6 intersect with each other in plan view. The tire materials M1, M2, which have been delivered from the respective supply units 5, 6 to the supply conveyor 6e and a band drum 3 installed at prescribed fixed positions, are cut to length and transferred to the supply conveyor 6e via the turning conveyor 5e to be supplied to the band drum 3 and wound around the band drum 3 and formed into a cylindrical shape.
Provided are: a system for supplying tire materials, which makes a tire molding device compact, reduces time losses attributable to tire-material replenishment, and efficiently supplies multiple kinds of tire materials to one molding drum; and a method for producing a tire. Supply units 5, 6 stocked with different kinds of tire materials M1, M2 are arranged side by side in adjacent stock positions P1, P2. The tire materials M1, M2 are sent out from the supply units 5, 6 along respective supply directions that cross each other in a plan view, and supplied to a band drum 3 and a supply conveyor 6e which are located in given certain positions, as follows. The tire materials M1, M2 which have been sent out from the supply units 5, 6 and cut into predetermined sizes are transferred to the supply conveyor 6e via slide conveyors 5d, 6d respectively disposed in the stock positions P1, P2 and via a turning conveyor 5e between the slide conveyors 5d, 6d and the supply conveyor 6e, and successively supplied to the band drum 3.
In a pneumatic tire including one carcass layer and a tread portion comprising a cap tread layer and an under tread layer, the under tread layer comprises a rubber composition having hardness at 20° C. of 60 to 65, tensile stress at 100% elongation at 100° C. of 2.0 MPa to 4.0 MPa, and a product of tensile strength at 100° C. and an elongation at break at 100° C. of 2000 or more, the carcass layer comprises an organic fiber cord having an elongation ratio under a load of 1.5 cN/dtex on a belt layer inner circumferential side of 5.5% to 8.5% and an elongation at break of 20% to 30%, and a product A=D×Ec of a fineness based on corrected mass D per carcass cord and an insertion count Ec is from 1.8×105 dtex/50 mm to 3.0×105 dtex/50 mm.
Provided are a tire production method and system that make it possible to improve work efficiency in a tire molding step by reducing loss of time due to material replenishment, while making a molding device more compact. According to the present invention, for each material, stocking is performed in a wound state in a plurality of supply units placed in parallel. A pair of bead members MC is stocked in a plurality of bead supply units 11. The materials each cut in a prescribed length are supplied by a supply conveyer to a band drum 3 and a belt drum 4 via a slide conveyer to mold an inner circumferential side member MA and an outer circumferential side member MB. Two shaping drums 2 are used to mold a green tire G with the inner circumferential side member MA, the outer circumferential side member MB, and the pair of bead members MC. The axial centers C1 of the respective drums 2 and 3 are set to be on the same axis and the drum axial centers C2 of the respective drums 3 and 4 are set to be on the same axis in transfer of the materials. While each material is supplied from one supply unit, the other empty supply unit is replaced with a new supply unit in which the material is stocked.
Provided are a production device and method for a cylindrical tire member that make it possible to accurately ascertain how well a belt-shaped tire material is positioned when the tire material is wound so as to be positioned at a reference position on a forming drum body as a result of the forming drum body being moved in the width direction and that also make it possible to reduce the space needed for a sensor used for the ascertainment. A connection part that moves a sensor 10 with a forming drum body 6 in a drum width direction has an extending portion L that extends upward from the drum body 6 away from a conveyor 16a at an inclination angle S of 30°–60° relative to the horizontal direction. The sensor 10 is provided to the extending portion L as seen from the side. A control unit 17 calculates the position in the width direction over the entire length of the tire material M1 relative to a reference position in the width direction on the forming drum body 6 on the basis of data about the position in the width direction of the tire material M1 on the forming drum body 6 that is sequentially detected by the sensor 10 and data about the installation position in the width direction of the sensor 10 relative to the forming drum body 6.
Provided are a compact supply system and a cylindrical tire member production method that make it possible to quickly supply, to a molding drum body, each tire material which is to be attached to the molding drum body in forward rotation or reverse rotation while suppressing unnecessary deviation and make it possible to reduce loss of time due to replenishment of the tire material. Tire materials M1, M2 which have been sent to upstream conveyors 2, 2 in upper and lower tiers from front and rear supply units 1A, 1A on one side in the parallel arrangement direction are transferred to the upstream conveyor 2, a slide conveyor 3, and a downstream conveyor 4 that are in the upper tier and are uniformly inclined upward and to the upstream conveyor 2, a slide conveyor 3, and a downstream conveyor 4 that are in the lower tier and are uniformly inclined downward, and are sequentially supplied to a molding drum body 6 in a state of being cut to a prescribed length. The slide conveyors 3 in the upper and lower tiers are slidingly moved, and tire materials M1, M2 which have been sent from front and rear supply units 1B, 1B on the other side in the parallel arrangement direction and cut to the prescribed length are sequentially supplied to the molding drum body 6 in a similar manner.
Provided are: a supply system for supplying a desired type of tire material to a desired range in a width direction of a molding drum body by rapidly switching to tire materials of different types and supplying the materials to the molding drum body without complicating the operation; and a cylindrical tire member manufacturing method. In each independent supply path from supply units 1A, 1B to heads 3A, 3B for each type of strip-like tire materials M1, M2, a predetermined amount of the tire materials M1, M2 are stored in festoon parts 2a, 2b between the supply units 1A, 1B and the heads 3A, 3B. The heads 3A, 3B are arranged so as to be offset in the drum front-rear direction relative to a molding drum body 7. The respective heads 3A, 3B are integrally slid in the width direction of the molding drum body 7, and the tire materials M1, M2 are spirally wound around the molding drum body 7 to manufacture a cylindrical tire member M.
Provided is a tire that has a display object for depicting a character, a figure, or a symbol on the outer surface of the sidewall part, and which is manufactured through a process for polishing the surface of the display object, the tire achieving an improved surface state of the display object. In a tire having a display object on the outer surface of the sidewall part wherein at least a part of a top surface of a convex part constituting the display object exposes a different-colored rubber embedded in a part of the sidewall part and therefore has a color different from that of the outer surface of the sidewall part, when a part extending along a tire radial direction of the convex part constituting the display object is defined as a radial element, the angle θr formed by a side surface of the convex part and the normal direction to the outer surface of the sidewall part in a cross section orthogonal to the radial element is set to 15° to 30° inclusive, or a connection part of the side surface of the convex part that connects to the outer surface of the sidewall part in the cross section orthogonal to the radial element is formed into an arc shape having a curvature radius Rr of 2.5 to 4.0 mm inclusive.
Provided is a rubber composition for tires providing wet performance and wear resistance in a compatible manner. A rubber composition for tires is characterized by containing 30 parts by mass or more of silica blended in 100 parts by mass of a diene rubber containing from 30 to 90 mass % of a modified styrene-butadiene rubber having an alkoxysilyl group. When measured by gel permeation chromatography, the modified styrene-butadiene rubber has a molecular weight distribution curve of a unimodal shape and the molecular weight distribution (PDI) of less than 1.7. A glass transition temperature of the rubber composition for tires is higher than −50° C.
An object of the present invention is to provide a rubber composition excellent in compression set resistance of the obtained rubber layer, adhesiveness between a resin layer and the rubber layer, and a maintaining property of strength of a reinforcing layer adjacent to the rubber layer. A rubber composition including: from 1 to 15 parts by mass of a phenolic resin; and 0.05 parts by mass or more and less than 1 part by mass of fatty acid, relative to 100 parts by mass of a rubber component containing from 30 to 100 parts by mass of a bromide of a copolymer rubber of an isomonoolefin and a p-alkylstyrene, from 0 to 70 parts by mass of a halogenated butyl rubber, and from 0 to 70 parts by mass of a butyl rubber, and a multilayer structure and a hose containing the same.
B32B 25/08 - Layered products essentially comprising natural or synthetic rubber comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
B32B 25/10 - Layered products essentially comprising natural or synthetic rubber next to a fibrous or filamentary layer
B32B 25/14 - Layered products essentially comprising natural or synthetic rubber comprising copolymers in which synthetic rubber constituents predominate
62.
DOOR OPENING/CLOSING MECHANISM IN LAVATORY UNIT FOR AIRCRAFT
A powered door opening mechanism to move an aircraft lavatory door from the closed position to the open position is provided, which includes a non-contact sensor inside and outside the lavatory to detect part of a human body, an engaged member in the door and extending to an upper side of the door, an engaging member at a section on the upper side of the door inside the lavatory, engageable with the engaged member from a side of the door from the closed position of the door to the open position of the door, and having a shape that is open in a direction away from the door, and an actuator to move the engaging member in a direction away from the entrance in response to a detection signal from the non-contact sensor and move the door from the closed position to the open position through the engaged member.
E05F 1/14 - Closers or openers for wings, not otherwise provided for in this subclass spring-actuated for swinging wings with double-acting springs, e.g. for closing and opening or checking and closing
E05F 15/611 - Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
63.
DOOR OPENING AND CLOSING MECHANISM OF AIRCRAFT LAVATORY UNIT
A powered door opening mechanism includes an outdoor non-contact sensor provided outside an aircraft lavatory and configured to detect in a non-contact manner operation of a person holding a hand over the outdoor non-contact sensor, a human detecting sensor configured to detect the presence of a person inside the lavatory, an actuator configured to move a door, and a control unit configured to control the actuator. The control unit causes, in a case where the human detecting sensor detects nothing, the actuator to move the door from the closed position to the open position when the outdoor non-contact sensor detects a person.
E05F 15/41 - Detection by monitoring transmitted force or torqueSafety couplings with activation dependent upon torque or force, e.g. slip couplings
E05F 15/74 - Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects using photoelectric cells
Provided is a rubber composition for tires providing low rolling resistance and wear resistance in a compatible manner. A rubber composition for tires is characterized by containing from 30 to 200 parts by mass of silica in 100 parts by mass of a diene rubber containing from 30 to 70 mass % of a modified styrene-butadiene rubber having an alkoxysilyl group. When measured by gel permeation chromatography, the modified styrene-butadiene rubber has a molecular weight distribution curve of a unimodal shape and the molecular weight distribution (PDI) of less than 1.7. A vinyl content is from 10 to 45 mass %. A glass transition temperature of the rubber composition for tires is −50° C. or lower.
The objective of the present invention is to improve wear resistance performance while maintaining ice and snow performance and wet performance. This pneumatic tire 1 includes: a circumferential main groove 31 which is formed in a linear shape in the circumferential direction of the tire; a circumferential groove 32 which is formed in the circumferential direction of the tire and in which inclined portions 32A that are inclined in a predetermined direction with respect to the circumferential direction of the tire are continuous in a zigzag shape in the circumferential direction of the tire; circumferential auxiliary grooves 33 which are provided between the circumferential groove 32 and the circumferential main groove 31, are adjacent to the inclined portions 32A in the width direction of the tire, and are inclined in the opposite direction to the inclined portions 32A in the circumferential direction of the tire; width direction connecting grooves 34 which connect both ends 32Aa, 33a of the inclined portions 32A and the circumferential auxiliary grooves 33 to partition blocks that are continuous in the circumferential direction of the tire; and width direction auxiliary grooves 35 which connect central portions of the circumferential auxiliary grooves 33 and the circumferential main groove 31 and are disposed so as not to coincide with the width direction connecting grooves 34.
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
(1) Automotive wheels; inner tubes for automobile tires; inner tubes for vehicle tires; tire liners; tires; tires for automobiles; tires for land vehicles; tires for two-wheeled motor vehicles; tires for vehicle wheels; vehicle wheel rims; wheel rims for automobiles; wheel rims for motor vehicles; wheel rims for two-wheeled vehicles; wheels for automobiles
(2) Wheels for vehicles; Wheels for two-wheeled motor vehicles; Protective liners for the inner part of tires and parts and fittings thereof;
69.
DEVICE AND METHOD FOR DETECTING LONGITUDINAL TEAR IN CONVEYOR BELT
Embedded bodies embedded in a conveyor belt at intervals in a longitudinal direction each include a passive IC tag 3 disposed at one side portion in a width direction of the conveyor belt and a linear shaped detection element connected to the IC tag and extending from the one side portion to the other side portion to form a loop circuit. A transmission radio wave is emitted from a detector toward the IC tag, presence or absence of energization of the loop circuit is determined using information transmitted from the IC tag to the detector via a return radio wave emitted from the IC tag in response to the transmission radio wave, and in accordance with this determination result, presence or absence of generation of a longitudinal tear in the conveyor belt in a range where the loop circuit is embedded is detected.
B65G 43/02 - Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load- carriers, e.g. for interrupting the drive in the event of overheating
G01S 13/75 - Systems using reradiation of radio waves, e.g. secondary radar systemsAnalogous systems using transponders powered from received waves, e.g. using passive transponders
70.
DEVICE AND METHOD FOR DETECTING WEAR IN CONVEYOR BELT
Embedded bodies in a conveyor belt at intervals in a longitudinal direction each include a passive IC tag 3 at one side portion of the conveyor belt and a linear shaped detection element connected to the IC tag extending toward the other side portion to form a loop circuit. An embedding depth of the loop circuit into the conveyor belt is preset in advance, a transmission radio wave is emitted from a detector toward the IC tag, energization of the loop circuit 9 is determined using information transmitted from the IC tag to the detector via a return radio wave W2 emitted from the IC tag 3 in response to the transmission radio wave, and to determine a degree of wear on the surface of the conveyor belt in a range where the loop circuit 9 is embedded.
B65G 43/02 - Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load- carriers, e.g. for interrupting the drive in the event of overheating
The purpose of the present invention is to provide: a rubber composition for tires which exhibit excellent processability, wet performance, wear resistance, and chipping resistance; and a tire produced using the composition. This rubber composition for tires comprises a diene-based rubber including a modified conjugated-diene rubber, silica, a silane coupling agent, and an alkyltriethoxysilane, wherein the modified conjugated-diene rubber is a conjugated-diene rubber satisfying a specific expression and having a modification group including a nitrogen atom, a silicon atom, and an oxygen atom adjacent thereto, the proportion of the modified conjugated-diene rubber in the diene-based rubber being 25 mass% or higher.
The present invention addresses the problem of providing: a rubber composition for tires which exhibits excellent processability and gives tires exhibiting excellent rolling performance, wet performance, wear resistance, and chipping resistance; and a tire produced using the rubber composition for tires. This rubber composition for tires comprises a rubber component (A) including a modified conjugated-diene rubber (A1), silica (B), and a silane coupling agent (C), wherein the A1 is a conjugated-diene rubber satisfying a specific expression and having a modification group including a nitrogen atom, a silicon atom, and an oxygen atom adjacent thereto, the proportion of the A1 in the A is 25 mass% or higher, and the C is 3-octanoylthio-1-propyltriethoxysilane or a polysiloxane represented by a specific average empirical formula.
Provided is a tire in which a side block 4 includes: a long block portion 41 disposed overlapping each of first and second shoulder blocks when viewed in a tire radial direction; a short block portion 42 disposed overlapping each of the second shoulder block 322 and the long block portion 41 when viewed in the tire radial direction; and an L-shaped groove 43 that penetrates the side block 4 to partition the long block portion 41 and the short block portion 42. The L-shaped groove 43 is formed by connecting a radial direction groove 431 and a circumferential direction groove 432 in an L-shape. An angle of inclination θ32 of the circumferential direction groove 432 with respect to the tire radial direction is in a range of 45° ≤ θ32 ≤ 135°.
The purpose of the present invention is to provide: a rubber composition for tires which exhibit excellent rolling performance, wet performance, wear resistance, and deterioration resistance; and a tire produced using the composition. This rubber composition for tires comprises a diene-based rubber including a modified conjugated-diene rubber, silica, a silane coupling agent, and an alkyltriethoxysilane, wherein the modified conjugated-diene rubber is a conjugated-diene rubber satisfying a specific expression and having a modification group including a nitrogen atom, a silicon atom, and an oxygen atom adjacent thereto, the proportion of the modified conjugated-diene rubber in the diene-based rubber being 25 mass% or higher.
The present invention addresses the problem of providing: a rubber composition for tires which exhibits excellent mixability and extrudability and gives tires having excellent wet performance, snow performance, and wear resistance; and a tire produced using the rubber composition for tires. This rubber composition for tires comprises a rubber component (A) including a modified conjugated diene-based rubber (A1), silica (B), and a silane coupling agent (C), wherein the component A1 is a conjugated diene-based rubber which satisfies a specific formula and has a modifying group containing a nitrogen atom, a silicon atom, and an oxygen atom adjacent to the silicon atom, the proportion of the component A1 in the component A is 25 mass% or higher, and the component C is 3-octanoylthio-1-propyltriethoxysilane or a polysiloxane represented by a specific average compositional formula.
The purpose of the present invention is to provide: a rubber composition for tires which exhibit excellent resistance to thermal sagging, resistance to wear in circuit running, wet performance, and rolling performance; and a tire produced using the rubber composition. This rubber composition for tires comprises: a rubber component A including a modified conjugated-diene rubber A1; silica B; and a softener C comprising at least one member selected from the group consisting of thermoplastic resins and oils. The A1 is a conjugated-diene rubber satisfying a specific expression and having a modification group including a nitrogen atom, a silicon atom, and an oxygen atom adjacent thereto and accounts for 25 mass% or more of the A. The A as a whole has a glass transition temperature higher than -80°C but not higher than -45°C. The content of the B is 80-160 parts by mass per 100 parts by mass of the A. The content of the thermoplastic resin(s) is 30-80 parts by mass, excluding 80 parts by mass, per 100 parts by mass of the A, and the proportion of the thermoplastic resin(s) to the sum of the thermoplastic resin(s) and the oil(s) is 50 mass% or higher.
The purpose of the present invention is to provide: a tire rubber composition exhibiting excellent on-ice performance, on-snow performance and wet performance, and having excellent green strength; and a tire manufactured by using the tire rubber composition. The present invention relates to a tire rubber composition containing: a diene-based rubber including a modified conjugated diene-based rubber; silica; and a plasticizer, wherein the modified conjugated diene-based rubber satisfies a specific formula and has a modifying group containing a nitrogen atom, a silicon atom, and an oxygen atom adjacent thereto, the proportion of the modified conjugated diene-based rubber in the diene-based rubber is more than 15 mass% and not more than 50 mass%, the content of silica is 30-90 parts by mass per 100 parts by mass of the diene-based rubber, and the content of the plasticizer is 30-80 parts by mass per 100 parts by mass of the diene-based rubber.
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Tires [for automobiles]; Vehicle tires; Tires; Tires for two-wheeled motor vehicles; Wheels for automobiles and vehicles; Wheels; Wheels for two-wheeled motor vehicles; Wheel rims for automobiles; Wheel rims for two-wheeled motor vehicles; Wheel rims [for automobiles and vehicles]; Tire liners; flaps; Protective liners for the inner part of tires [parts and fittings]; Inner tubes for automobile tires; Inner tubes for vehicle tires..
Provided is a tire with which an improvement in rough road running performance can be achieved while ensuring excellent block durability. A plurality of shoulder blocks (12) are provided in a shoulder region of a tread portion (1), a plurality of side blocks (13) are provided in a side region that is adjacent to the shoulder region on the outer side thereof in the width direction of the tire, one side block (13) is disposed in a position on the outer side, in the width direction of the tire, of a block group comprising two or more shoulder blocks (12) adjacent to one other in the circumferential direction of the tire, and if a surface comprising side surfaces of the shoulder blocks (12) included in the block group and a top surface of the side block 13 is defined as an upper layer surface, a first recessed portion (15) including a middle layer surface that is recessed by 0.2 mm or more from the upper layer surface is provided on the center side of the upper layer surface, and a second recessed portion (16) including a lower layer surface that is recessed by 0.2 mm or more from the middle layer surface is provided on the center side of the middle layer surface.
This tire comprises a pair of bead portions 10 in which a bead core 11 and a bead portion rubber 30 having a volume resistivity of less than 1×10^8 [Ω·cm] are arranged, at least one carcass layer 13 having a volume resistivity of 1×10^8 [Ω·cm] or more and spanning the pair of bead portions 10, a belt layer 14 disposed on the tire radial direction outer side of the carcass layer 13, a tread rubber 15 disposed on the tire radial direction outer side of the belt layer 14, and an electrically conductive member 50 that is formed in the shape of a sheet, has a volume resistivity of less than 1×10^8 [Ω·cm], and extends continuously from a position on a tire inner surface 25 that overlaps at least an end portion 144 of the belt layer 14 in the tire width direction to the bead portion 10, wherein an inner end portion 51, in the tire radial direction, of the electrically conductive member 50 is covered by the bead portion rubber 30 disposed in the bead portion 10, thereby making it possible for the electrical resistance of the tire to be continuously reduced.
B60C 5/14 - Inflatable pneumatic tyres or inner tubes without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim with impervious liner or coating on the inner wall of the tyre
B60C 9/04 - Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
B60C 11/00 - Tyre tread bandsTread patternsAnti-skid inserts
B60C 15/00 - Tyre beads, e.g. ply turn-up or overlap
B60C 15/06 - Flipper strips, fillers, or chafing strips
The tire 1 is provided with a plurality of shoulder lug grooves 311 which extend to a buttress portion beyond a ground-contact end T of the tire. In addition, the plurality of shoulder lug grooves 311 each have a protrusion 5 which protrudes from the groove bottom of the shoulder lug groove 311 and is disposed further outward in a tire width direction than the ground-contact end T of the tire. In addition, the distance D1 from the ground-contact end T of the tire to the protrusion 5 in the tire width direction is in a range of 0.02 ≤ D1/SH ≤ 0.15 with respect to the cross-sectional height SH of the tire.
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
TIRES FOR AUTOMOBILES; TIRES FOR VEHICLES; TIRES; TIRES FOR TWO-WHEELED MOTOR VEHICLES; WHEELS FOR AUTOMOBILES AND VEHICLES; WHEELS; WHEELS FOR TWO-WHEELED MOTOR VEHICLES; WHEEL RIMS FOR AUTOMOBILES; WHEEL RIMS FOR TWO-WHEELED MOTOR VEHICLES; WHEEL RIMS (FOR AUTOMOBILES AND VEHICLES); TIRE LINERS, FLAPS; PROTECTIVE LINERS FOR THE INNER PART OF TIRES (PARTS AND FITTINGS); INNER TUBES FOR AUTOMOBILE TIRES; INNER TUBES FOR VEHICLE TIRES
Provided is a tire that can improve steering stability on snowy road surfaces and can reduce extravehicular noise. The present invention is a tire, having a designated direction for mounting onto a vehicle, wherein: an inner shoulder narrow groove 31 and a plurality of inner shoulder lug grooves 41 are formed in an inner shoulder land section 21; a narrow rib 61 is demarcated between the inner shoulder narrow groove 31 and a first main groove 11; a circumferential-direction auxiliary groove 31, a plurality of first lug grooves 42, and a plurality of first sipes 52 are formed in an inner intermediate land section 22; a narrow rib 62 is demarcated between the circumferential-direction auxiliary groove 32 and a second main groove 12; a plurality of second lug grooves 43 and a plurality of second sipes 53 are formed in a center land section 23; a plurality of third lug grooves 44 and a plurality of third sipes 54 are formed in an outer intermediate land section 24; an outer shoulder narrow groove 35 and a plurality of outer shoulder lug grooves 45 are formed in an outer shoulder land section 25; and a narrow rib 65 is demarcated between the outer shoulder narrow groove 35 and a fourth main groove 14.
A marine hose has a twist coefficient 1900≤K≤2900 of fiber cords constituting a fiber reinforced member with three or four twisted filaments made of polyester, an interrelationship R between a predetermined elongation ratio E2 of a plurality of types of the fiber cords having different specifications and a hose elongation ratio E1 in a predetermined expansion test of each of marine hoses in which the fiber reinforced member including the respective fiber cords as constituent members is embedded as reinforcing layers is determined in advance. A threshold Th of the ratio E2 is set based on a standard value of hose elongation ratio E1 in the predetermined expansion test and the interrelationship R and the predetermined elongation ratio E2 of the fiber cords used as the reinforcing layers is set to the threshold Th or less.
F16L 11/08 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
F16L 11/133 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting buoyant
In a solid tire including a tread rubber layer on a road contact surface side and a base rubber layer on a rim side and having a side surface extending in a tire radial direction from the tread rubber layer to the base rubber layer, an RFID tag is embedded inside the solid tire, and the RFID tag is disposed near the side surface. When forming an unvulcanized tire by winding a rubber sheet into multiple layers, the RFID tag is inserted between layers of the rubber sheet in the middle of the winding into multiple layers, or the RFID tag and a coating layer are overlaid and attached on a side surface of the unvulcanized tire, and then the unvulcanized tire including the RFID tag is vulcanized in a mold.
In a solid tire including a tread rubber layer on a road contact surface side and a base rubber layer on a rim side, the base rubber layer has JIS-A hardness of 80 or higher, and an RFID tag is embedded in the base rubber layer. When forming an unvulcanized tire by winding a rubber sheet into multiple layers, the RFID tag is inserted between layers of the rubber sheet in the middle of the winding into multiple layers, or the RFID tag and a coating layer are overlaid and attached on a side surface of the unvulcanized tire, and then the unvulcanized tire including the RFID tag is vulcanized in a mold.
Provided is a heavy-load pneumatic tire capable of maintaining or improving rolling resistance, uneven wear resistance performance, and durability, and achieving a high level of balance of the properties. In this heavy-load pneumatic tire, a tread rubber layer 10 is composed of a tread rubber formed of a rubber composition in which at most 60 parts by mass of a filler containing carbon black and silica is blended with 100 parts by mass of a rubber component containing at least 90 mass% of an isoprene-based rubber and the blending amount ratio of the carbon black and the silica in the filler is 3:2 to 1:1, a belt cushion layer 40 is composed of a belt cushion rubber formed of a rubber composition in which at most 45 parts by mass of carbon black is blended with 100 parts by mass of a rubber component containing at least 90 mass% of an isoprene-based rubber, and the hardness Hc of the tread rubber and the hardness Hb of the belt cushion rubber satisfy the relationship of 1.2≤Hc/Hb≤1.5.
Provided is a drone that comprises a lighter weight antenna and can maintain a better state of wireless communication with a passive-type IC tag installed on an object to be monitored. Also provided are a monitoring system and a monitoring method using said drone. An antenna 7 constituting a communication device 6 is a two-element patch antenna in which two antenna elements 8 are arranged side-by-side on a lower surface of a reflection plate 9. The reflection plate 9 and each antenna element 8 are formed of an aluminum alloy plate having a thickness of 3 mm or less. The reflection plate 9 is installed on the drone 1 such that a camera through-hole 9a, which is formed at a position between the antenna elements 8 in a center portion of the reflection plate 9, is positioned at a center portion of the drone 1 in plan view. The reflection plate 9 and the antenna elements 8 are visible in a field of view looking up from directly below the drone 1, and a camera device 5 disposed above the reflection plate 9 acquires image data below the drone 1 through the camera through-hole 9a.
H01Q 1/27 - Adaptation for use in or on movable bodies
F16L 11/133 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting buoyant
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
H01Q 13/08 - Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
H01Q 19/10 - Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
H01Q 21/06 - Arrays of individually energised antenna units similarly polarised and spaced apart
89.
THERMOPLASTIC RESIN COMPOSITION FOR REFRIGERANT TRANSPORT HOSE, AND REFRIGERANT TRANSPORT HOSE
The present invention provides a refrigerant transport hose that exhibits good flexibility, good resistance to refrigerant permeation, and good resistance to deterioration. The thermoplastic resin composition for a refrigerant transport hose has a sea-island structure in which an elastomer is present in domain form in a matrix including a thermoplastic resin, said thermoplastic resin composition characterized by comprising 100 parts by mass of an elastomer, 30-100 parts by mass of a thermoplastic resin, and 0.5-10 parts by mass of a hydrotalcite and/or a magnesium-aluminum solid solution, wherein the thermoplastic resin includes 50-100 parts by mass of a polyamide on the basis of 100 parts by mass of the thermoplastic resin, and the elastomer includes an elastomer having a polyisobutylene skeleton.
C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers
C08L 101/00 - Compositions of unspecified macromolecular compounds
F16L 11/06 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with homogeneous wall
Provided is a tire that makes it possible to prevent damage to a housing body while improving high-speed durability of a functional component. This tire comprises a functional component 20 having a sensor function for detecting tire information and a housing body 30 in which the functional component 20 is housed. The housing body 30 has a housing part 33 for housing the functional component 20, an opening part 34 for putting in and taking out the functional component 20, the opening part 34 being in communication with the housing part 33, and a side wall part 32 surrounding the periphery of the housing part 33. At least the side wall part 32 is made of an elastic material. The volume Vs [cm3] of the functional component 20, the volume Vc [cm3505050 ≤ 3.0.
A cable protection member includes a cable insertion hole through which a cable is inserted and a pair of protection member sections divided in a diameter direction of the cable insertion hole. The pair of protection member sections include diameter-direction coupling portions to be immovably coupled to each other in the diameter direction of the cable insertion hole with the pair of protection member sections coupled to each other.
A rubber composition for a tire according to the present invention comprises a diene-based rubber, silica, a sulfur-containing silane coupling agent, and an alkylalkoxysilane compound. A blending amount a of the silica is 80-300 parts by mass with respect to 100 parts by mass of the diene-based rubber, and a blending amount b of the sulfur-containing silane coupling agent and the blending amount c of the alkylalkoxysilane compound satisfy the expressions (1) and (2). (1): 0.03 < (b/a) < 0.06, (2): c/b ≥ 1.5
A cylindrical shaped circumferential rib is integrally formed as a base protruding on the outer circumferential surface of a resin pipe. An annular sealant is externally fitted on one end portion of a metal member which is inserted in and fixed to the base to interpose the sealant between the one end portion and the inner circumferential surface of the base, allow the outer circumferential surface of the one end portion to press and restrict the movement of the sealant toward the inner side in the radial direction and toward the trailing end side of the one end portion in the insertion direction, and allow the inner circumferential surface of the base to press and restrict the movement of the sealant toward the outer side in the radial direction and toward the insertion direction distal end side of the one end portion.
F16L 25/00 - Construction or details of pipe joints not provided for in, or of interest apart from, groups
F16L 21/02 - Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
A rubber composition according to the present invention contains: (A) 100 parts by mass of a rubber component containing at least 50 parts by mass of a diene rubber; and (B) 1-200 parts by mass of a polyolefin having a melting point of 110-155°C and demonstrating either a melt mass flow rate (MFR) exceeding 6 g/10 min when measured at a temperature of 230°C and a load of 2.16 kg or a melt mass flow rate (MFR) of at least 10 g/10 min when measured at a temperature of 190°C and a load of 2.16 kg.
C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers
A tire includes a pair of bead cores, a carcass layer extended across the bead cores, a belt layer disposed on an outer side of the carcass layer in a radial direction, and a tread portion. A tire outer diameter OD (mm) is in a range 200≤OD≤660. A total tire width SW (mm) is in a range 100≤SW≤400. A groove area ratio Aa of the tread portion is in a range 0.008≤Aa/OD≤0.150. A groove area ratio Ace of a center region of the tread portion and a groove area ratio Ash of a shoulder region of the tread portion have a relationship Ace/Ash>1.
B60C 9/20 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
A metal flange having unevenness on a surface of an insertion hole is disposed in an insert portion in a cavity body of a mold. A resin pipe is formed by curing molten resin injected into a cavity. The metal flange is fitted to a fixing groove continuous over an entire circumference of an outer circumferential surface of the pipe in a circumferential direction. An outer circumferential surface of the fixing groove enters the unevenness on the surface of the insertion hole. A circumferential rib is formed on at least one side of both ends of the flange in a longitudinal direction of the resin pipe, abuts on an end surface of the flange, has a diameter larger than an outer diameter of the pipe, and is continuous over the entire circumference of the outer circumferential surface of the pipe in the circumferential direction.
F16L 23/024 - Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
B29C 49/20 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor of articles having inserts or reinforcements
A tire includes a pair of bead cores, a carcass layer extended across the bead cores, a belt layer disposed on an outer side of the carcass layer in a radial direction, and a tread portion. A tire outer diameter OD (mm) is in a range 200≤OD≤660. A total tire width SW (mm) is in a range 100≤SW≤400. A groove area ratio Aa of the tread portion is in a range 0.008≤Aa/OD≤0.150.
B60C 9/20 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
