A method for producing a chain-shaped unsaturated carboxylic acid compound or a geometric isomer thereof, having at least two carbon-carbon double bonds, including the steps of: removing, from a chain-shaped unsaturated carboxylic acid compound or a geometric isomer thereof having an amino group and a carbon-carbon double bond at a terminus, that amino group, in the presence of phenylalanine ammonia lyase, and further forming a carbon-carbon double bond.
A tire 10 comprises: circumferential main grooves 16; an inner land section 18 delimited and formed by at least two of the circumferential main grooves 16; and outer land sections 20 each disposed outward of the inner land section 18 in the tire width direction. In each of the outer land sections 20, inclined grooves 50, inclined narrow grooves 52, and reverse inclined grooves 54 are arranged. Each of the inclined grooves 50 extends outward in the tire width direction from a circumferential main groove 16, is inclined from the step-in side to the kick-out side, and has a tip 60 connected to a tread end T. Each of the inclined narrow grooves 52 extends outward in the tire width direction from the circumferential main groove 16, is inclined from the step-in side to the kick-out side, and has a tip 76 disposed in the outer land section 20. Each of the reverse inclined grooves 54 extends from the kick-out side to the step-in side, and is inclined outward from the inside in the tire width direction. The groove width W2 of each of the inclined narrow grooves 52 is 20-80% of the groove width W1 of each of the inclined grooves 50.
B60C 11/01 - Forme des épaulements entre bande de roulement et flanc du pneumatique, p. ex. arrondie, à paliers ou en porte-à-faux
B60C 11/12 - Sculptures des bandes de roulement caractérisées par l'utilisation d'entailles étroites ou de traits de scie, p. ex. lamelles
B60C 11/13 - Sculptures des bandes de roulement caractérisées par la section transversale de la rainure, p. ex. pour étayer les parois, ou pour empêcher le coincement de pierres
Provided is a method and system for producing kneaded rubber with which it is possible to efficiently produce a final kneaded rubber of the desired quality for each kneaded material specification by using an open structure roll kneader. For each kneaded material R specification, the state of the kneaded material R circulating through a circulation path is detected by a sensor unit 9, and the detected data are input to a computation device 10 together with the kneading conditions when the detected data were detected. In the computation device 10, the input detected data are distinguished into normal data showing a good kneading state and non-normal data showing a non-good kneading state based on preset criteria. The kneading conditions capable of realizing the normal data are calculated by the computation device 10 by machine-learning using the kneading conditions input to the computation device 10 together with the normal data and the kneading conditions input to the computation device 10 together with the non-normal data as training data, and kneading is performed by applying the calculated kneading conditions to the next kneaded material R of the same specification to be kneaded.
B29B 7/56 - MélangeMalaxage continu, avec dispositifs mécaniques de mélange ou de malaxage avec dispositifs de mélange ou de malaxage mobiles à cylindres ou analogue, p. ex. à calandres avec des cylindres coopérants
B29K 19/00 - Utilisation de caoutchouc non prévu dans un seul des groupes principaux comme matière de moulage
Provide is a rubber composition for tires having a high level of tread durability when traveling on rough roads, heat generation resistance, and processability. The rubber composition is characterized by blending 0.1-3.0 mass parts of a compound represented by general formula (1), 0.5-6.0 mass parts of a processing aid containing a fatty acid ester, and 40-80 mass parts of carbon black per 100 mass parts of diene rubber containing 40 mass% or more isoprene rubber and by the nitrogen absorption specific surface area of the carbon black being 60-200 m2/g. (In formula (1), R1, R2, R3, and R4are the same or different and represent a hydrogen atom, an alkyl group, an aralkyl group, an aryl group, or a heterocyclic group. R3and R4together may form an alkylidene group, and any two of R2, R3, and R4 together may form an alkylene group. Each of these groups may optionally have one or more substituents.)
A resin pipe is manufactured by injecting a molten resin from one end portion toward the other end portion of a cavity formed in a mold by an injector and filling the molten resin in the cavity, and then introducing a fluid or solid assist material by an assist material injection device from the other end portion toward the one end portion of the cavity to discharge an extra molten resin from the cavity, thereby curing the molten resin in a cylindrical shape remaining in the cavity. The extra molten resin discharged from the cavity is caused to flow back into the injector, and the back-flowed molten resin is injected and used from the one end portion toward the other end portion of the cavity by the injector when manufacturing a next new resin pipe.
B29C 45/00 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet
B29C 45/18 - Alimentation en matière à mouler de l'appareil de moulage par injection
Provided is a rubber composition for a rim cushion that can provide satisfactorily maintained hardness, elongation at break, and wear resistance and improved low heat build-up and can provide these performances in a well-balanced and highly compatible manner. Silica having a CTAB adsorption specific surface area of 60 m2/g to 100 m2/g, carbon black having a CTAB adsorption specific surface area of 60 m2/g to 160 m2/g, and a sulfur-containing silane coupling agent are blended in diene rubber containing 35 mass % to 65 mass % of isoprene rubber and 35 mass % to 65 mass % of butadiene rubber. At least one type of terminal-modified butadiene rubber for silica is used as the butadiene rubber. A blended amount of the silica per 100 parts by mass of the diene rubber is 10 parts by mass or more and a total of the blended amount of the silica. A blended amount of the carbon black per 100 parts by mass of the diene rubber is more than 50 parts by mass. A product of a stress M100 at 100% elongation and hardness is set to 150 or more.
A rubber composition for a hose excellent durability under a low temperature condition includes a hydrogenated acrylonitrile butadiene rubber having an acrylonitrile content of 24 mass % or less, carbon black, and peroxide, and a content of the peroxide is 1.0 part by mass or more and less than 2.4 parts by mass per 100 parts by mass of the hydrogenated acrylonitrile butadiene rubber, and a content of the magnesium oxide is 0 parts by mass or more and less than 10.0 parts by mass per 100 parts by mass of the hydrogenated acrylonitrile butadiene rubber, or the content of the peroxide is from 1.0 to 3.5 parts by mass per 100 parts by mass of the hydrogenated acrylonitrile butadiene rubber, and the content of the magnesium oxide is from 0 to 3.0 parts by mass per 100 parts by mass of the hydrogenated acrylonitrile butadiene rubber.
The present invention improves wear resistance while ensuring ice/snow performance and wet performance. The present invention comprises center circumferential main grooves 31A, 31B, shoulder circumferential main grooves 32A, 32B, a center land portion 21, middle land portions 22A, 22B, shoulder land portions 23A, 23B, center lug grooves 42, outer middle lug grooves 41, outer shoulder lug grooves 45, inner first middle lug grooves 43, inner second middle lug grooves 44, inner shoulder lug grooves 46, middle straight sipes 51, and center straight sipes 52. The outer middle lug grooves, the center lug grooves, the inner first middle lug grooves, and the inner second middle lug grooves are provided such that the inclination directions thereof with respect to the tire width direction are sequentially opposite. The shoulder circumferential main grooves are provided such that groove walls 32Aa between the outer middle lug grooves are inclined in the same direction with respect to the tire circumferential direction. The center circumferential main grooves are provided such that groove walls 31Aa between the center lug grooves are inclined in the same direction with respect to the tire circumferential direction.
B60C 11/13 - Sculptures des bandes de roulement caractérisées par la section transversale de la rainure, p. ex. pour étayer les parois, ou pour empêcher le coincement de pierres
B60C 5/00 - Pneumatiques ou chambres intérieures gonflables
A tire has, in a cross-sectional view in a tire meridian direction when the tire is mounted on a specified rim, inflated to 230 kPa, and in an unloaded state, a radial distance D3 from a point P1 to a point T3 with respect to a radial distance D1 from the point P1 to a point T1 in a range 0.05≤D3/D1≤0.15. The tire has a radial distance D6 from the point P1 to a point T6 with respect to the radial distance D3 from the point P1 to the point T3 in a range 3.00≤D6/D3≤6.00. The tire has a radius of curvature R1 of a first arc passing through the point T3 and points T4 and T5 with respect to a radius of curvature R2 of a second arc passing through the points T1 and T6 and a point T7 in a range 0.40≤R1/R2≤1.00.
B60C 13/00 - Flancs du pneumatiqueProtection, décoration, marquage ou opérations similaires concernant ces derniers
B60C 3/04 - Pneumatiques caractérisés par leur section transversale caractérisés par les dimensions relatives de la section, p. ex. par un profil bas
B60C 9/28 - Structure ou disposition des ceintures, des couches de protection, des couronnes de renforcement ou des couches amortissantes caractérisée par les dimensions ou la courbure de la ceinture ou de la couche de protection par rapport à la carcasse
B60C 11/00 - Bandes de roulement des pneumatiquesSculptures des bandes de roulementPièces rapportées antidérapantes
B60C 11/01 - Forme des épaulements entre bande de roulement et flanc du pneumatique, p. ex. arrondie, à paliers ou en porte-à-faux
A rubber composition containing: a diene rubber containing a natural rubber and a butadiene rubber; a flame retardant containing a chlorinated paraffin and antimony trioxide; carbon black; sulfur; a sulfenamide-based vulcanization accelerator and a guanidine-based vulcanization accelerator; a content of the natural rubber being from 20 to 50 mass % with respect to a total amount of the diene rubber; a content of the butadiene rubber being from 50 to 80 mass %; a content of the chlorinated paraffin being from 20 to 35 parts by mass per 100 parts by mass of the diene rubber; a content of the antimony trioxide being from 5 to 12 parts by mass; a mass ratio of the vulcanization accelerators/the sulfur being ≥1.00; and a mass ratio of the guanidine-based vulcanization accelerator/the sulfenamide-based vulcanization accelerator being from 0.20 to 0.60. Also a conveyor belt is produced by using the rubber composition.
A system and a method for operation management of a conveyor belt that are capable of accurately determining an operational state of the conveyor belt while having a simple configuration. A detector disposed at a predetermined detection position of a conveyor device transmits a transmission radio wave toward an IC tag of a passive type installed at a conveyor belt. A computation device calculates a running speed of the conveyor belt based on reception time when the detector receives a return radio wave returned from the IC tag in response to the transmission radio wave. An operational state of the conveyor belt is determined based on a change over time in the running speed. The computation device transmits data of the change over time in the running speed to a terminal device at a position away from an installation site of the calculation device through a communication network.
A pneumatic tire includes a tread portion extending in a circumferential direction and having an annular shape, a pair of sidewall portions respectively disposed on both sides of the tread portion, and a pair of bead portions respectively disposed on inner sides of the sidewall portions in a radial direction. A bead filler is disposed on an outer periphery of a bead core of each bead portion, a carcass layer is mounted between the pair of bead portions, and the carcass layer is turned up around the bead core from a tire inner side to a tire outer side. A transponder is embedded between the bead filler and the carcass layer, and a distance from an outer surface of the transponder to an outer surface of the bead filler measured in a normal line direction of the carcass layer ranges from 2 mm to 20 mm.
Provided is a sensor unit capable of accurately determining deflection of an elastic body even when the elastic body exhibits a complicated deformation behavior, such as when stress is applied to the elastic body from many directions in a complex manner. A sensor unit (10) is disposed on a surface of an elastic body (E) to determine deflection of the elastic body when the elastic body undergoes bending deformation. The sensor unit (10) comprises one permanent magnet (12) and at least two magnetic sensor elements (14a, 14b). Deflection of the elastic body is determined by performing a calculation using signals output from each of the at least two magnetic sensor elements.
Provided is a tire comprising a sensor unit that is capable of determining the deflection of the tire at high precision. A sensor unit (10) comprises a flexible sheet (16), and one permanent magnet (12) and at least two magnetic sensor elements (14a, 14b) that are formed on the flexible sheet. There is at least one magnetic sensor element arranged in respective regions on one side and on the other side of a seat surface reference line (L1) within a concave circle (C). The permanent magnet is magnetized to a single pole. The poles of the permanent magnet are respectively directed to the one side and the other side of the sheet surface reference line on the flexible sheet.
B60C 19/00 - Autres structures ou éléments du pneumatique
G01L 5/169 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques pour la mesure de plusieurs composantes de la force en utilisant des moyens magnétiques
Provided is a tire having excellent snow performance. A tire 10 has a tread surface 12. The tread surface 12 includes: a plurality of inclined grooves 14 arranged in the tire circumferential direction and inclined toward one side in the tire circumferential direction as the inclined grooves 14 extend from a ground-contact edge E toward a tire equatorial plane CP; and circumferential grooves 16 arranged on both sides in the tire width direction with respect to the tire equatorial plane CP and extending along the tire circumferential direction, the circumferential grooves 16 communicating the inclined grooves 14 with each other. The inclined grooves 14 include a branch groove portion 26 formed in a center land portion 54 partitioned and formed between the circumferential grooves 16. The branch groove portion 26 includes a first branch groove 28 and a second branch groove 30. The first branch groove 28 is inclined toward one side in the tire circumferential direction, and has a tip communicating with another inclined groove 14 adjacent on one side in the tire circumferential direction. The second branch groove 30 is inclined to the opposite side to the first branch groove 28 with respect to the tire circumferential direction, and has a tip terminating in the center land portion 54.
The present invention address the problem of maintaining the performance of electric resistance reduction for long periods of time. A tire includes a pair of bead parts, a carcass layer spanning between the pair of bead parts, a belt layer provided on the radially outer side of the carcass layer, and a tread part provided on the radially outer side of the belt layer. The carcass layer includes a plurality of carcass cords, coating rubber covering the plurality of carcass cords, and a conductive wire-form body. The pair of bead parts includes a pair of bead cores and rubber parts that are provided around each of the pair of bead cores and are in contact with the rim in a state of being mounted thereon. At least 20 (%) of the length in which the conductive wire-form body extends is covered with the coating rubber in a cross section in a direction perpendicular to the direction in which the carcass layer extends.
B60C 19/08 - Dispositifs pour écouler les charges électriques
B60C 9/04 - Carcasses les fils de renforcement de chaque pli de la carcasse étant sensiblement parallèles
B60C 9/08 - Carcasses les fils de renforcement de chaque pli de la carcasse étant sensiblement parallèles joignant transversalement un talon à l'autre, c.-à-d. formant une nappe radiale
B60C 11/00 - Bandes de roulement des pneumatiquesSculptures des bandes de roulementPièces rapportées antidérapantes
The present invention improves the performance for heat generation resistance and wear resistance. In the present invention, circumferential-direction narrow grooves 21, 22 and a width-direction narrow groove 41 each have the width that is 10-25% of the depth of each groove itself. A center block 31A comprises width-direction contoured sections 31Ab that, where mutually adjacent in the tire circumferential direction, mutually overlap in the tire width direction. The center circumferential-direction narrow groove 21 is formed in a zigzag shape, with long sections 21a and short sections 21b being disposed in alternation in the tire circumferential direction. The length of the long sections 21a is 65-100% of the maximum dimension of the center block 31A in the tire circumferential direction. 28-43 shoulder blocks 32A are aligned side-by-side in the tire circumferential direction. The center tread gauge of a tread section at the tire equatorial plane CL is at least 40 mm, and the center tread gauge is 105-185% of the depth of a shoulder lug groove 43.
B60C 9/18 - Structure ou disposition des ceintures, des couches de protection, des couronnes de renforcement ou des couches amortissantes
B60C 11/13 - Sculptures des bandes de roulement caractérisées par la section transversale de la rainure, p. ex. pour étayer les parois, ou pour empêcher le coincement de pierres
The present invention improves the visibility of a patterned portion. This tire comprises a patterned portion (4) formed from one continuous ridge (7A), which is disposed on the tire surface on the basis of a space-filling curve.
In a pneumatic tire including a groove in an outer surface of a tread, the groove has a bottom forming a maximum depth, side walls extending from a contact surface of the tread to a side of the bottom, and a projection portion projecting into the groove from at least one side wall. A regular state in which the tire is mounted on a rim and inflated to a regular internal pressure is defined, a ground contact state in which the tire in the regular state contacts a flat surface and is loaded with 100% of a regular load is defined, and when the groove is directly below ground contact in the ground contact state, a groove width (W1a) of the groove at a projection portion position and a groove width (W2a) of the groove at an opening portion position of the groove satisfy W1a/W2a≤0.75.
B60C 11/13 - Sculptures des bandes de roulement caractérisées par la section transversale de la rainure, p. ex. pour étayer les parois, ou pour empêcher le coincement de pierres
Provided are a pneumatic tire and a manufacturing method therefor, wherein ride comfort can be improved when a sealant layer is provided on a tire inner surface of a tread section. This pneumatic tire comprises: a tread section 1 that extends in the tire circumference direction and forms an annular shape; a pair of sidewall sections 2 that are positioned on both sides of the tread section 1; and a pair of bead sections 3 that are positioned to the inside of the sidewall sections 2 in the tire radius direction. Formed on a tire inner surface 10 of the tread section 1 is a sealant layer 20 that has a structure in which a strip material 21 of a sealant is positioned in a helical shape along the tire circumference direction. A starting point P1 and an ending point P2 of the strip material 21 are separated from each other in the tire circumference direction, and the narrow angle-side angle β that the starting point P1 and the ending point P2 of the strip material 21 form around the tire center axis O is greater than the narrow angle-side angle α that both end points X1, X2 of a ground contact region in the tire circumference direction form around the tire center axis.
A rubber product that includes a cylindrical molded body in having a plurality of reinforcing layers coaxially layered between inner and outer layers. In producing/vulcanizing the molded body, a rubber product including a cylindrical portion, each of multiple reinforcing layers composed of cord fabrics including a large number of fiber cords aligned and subjected to a predetermined adhesion treatment and coating rubber layers covering both surfaces of the cord fabric, and a bias structure in which the fiber cords of the reinforcing layers extend in an intersecting direction is formed. Each of the cord fabrics has: a tensile strength of ≥4320 N/cm in a cord extension direction and a weight of ≤950 g/m2, each of the cord fabrics has a bending hardness of ≤30 g/cm after the predetermined adhesion treatment, and each of the coating rubber layers has a layer thickness of ≥0.2 mm and ≤1 mm.
B32B 25/10 - Produits stratifiés composés essentiellement de caoutchouc naturel ou synthétique adjacent à une couche fibreuse ou filamenteuse
B29C 35/02 - Chauffage ou durcissement, p. ex. réticulation ou vulcanisation
B29C 70/22 - Façonnage de matières composites, c.-à-d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p. ex. des inserts comprenant uniquement des renforcements, p. ex. matières plastiques auto-renforçantes des renforcements fibreux uniquement caractérisées par la structure des renforcements fibreux utilisant des fibres de grande longueur, ou des fibres continues orientées dans au moins deux directions formant une structure bidimensionnelle
B29C 70/30 - Façonnage par empilage, c.-à-d. application de fibres, de bandes ou de feuilles larges sur un moule, un gabarit ou un noyauFaçonnage par pistolage, c.-à-d. pulvérisation de fibres sur un moule, un gabarit ou un noyau
B29K 7/00 - Utilisation de caoutchouc naturel comme matière de moulage
The present invention improves the visibility of a patterned portion. The present invention comprises a patterned portion 4 in which a plurality of ridges 7A, 7B are aligned in parallel on a tire surface 5A (3A). The patterned portion 4 has: a first section 71A in which a first ridge 7A continuously folds back on itself and is arranged so as to resemble a rectangular shape; and a second section 71B in which a second ridge 7B continuously folds back on itself, extends in a direction intersecting the first ridge 7A, and is arranged so as to resemble a rectangular shape. The first ridges 7A of a plurality of first sections 71A and the second ridges 7B of a plurality of second sections 71B are formed so as to be continuous.
A pneumatic tire 1 comprises a patterned part 4 in which a plurality of ridges 7 are arranged on tire surfaces 3A, 5A. The patterned part 4 has a plurality of element patterns 8 which are formed by the ridges 7. The plurality of element patterns 8 are formed by continuous ridges 7, and adjacent element patterns 8 are connected by the ridges 7. The element patterns 8 make it possible to improve visibility of the patterned part due to the structure of the ridges 7 in which each ridge 7 has a first portion 7A, which extends from the outer side of the element pattern 8 to the inner side of the element pattern 8 in one direction in the extension direction of the ridge 7, and a second portion 7B, which extends from the inner side of the element pattern 8 to the outer side of the element pattern 8.
The present invention improves the visibility of a patterned portion. A tire surface 5A (3A) comprises a patterned portion 4 having sections 71 in which a plurality of arc-shaped ridges 7A are aligned in parallel so as to resemble fan shapes, with each ridge 7A continuously doubling back on itself.
A pneumatic tire includes a bead core including end portions in a width direction formed as a vertical line along a radial direction, the vertical line has a length of 31% to 45% of a core height, in two adjacent bead core layers of first, second and third layers of the bead core, the number of bead wires in the radially outer layer is larger by two or more than the number of bead wires in the radially inner layer, and a misalignment amount between bead wires located at an end portion on one side in the width direction is one-half of the bead wire, and a side on which the one-half misalignment amount between the bead wires in the first and second layers is opposite in the width direction to a side of the one-half misalignment amount between the second and third layer bead wires.
A management system and method that can easily and more stably grasp a condition of an individual pneumatic fender and has excellent maintainability a passive IC tag, a pressure sensor, and a temperature sensor which are activated by a transmission radio wave from a communication unit outside a pneumatic fender in which the passive IC tag integrating the pressure sensor and the temperature sensor is installed. A return radio wave from the IC tag activated is transmitted in response to the transmission radio wave, wireless communication between the IC tag and the communication unit is performed, the communication unit thus acquires identification information of the IC tag and detection data of the pressure sensor and the temperature sensor when the IC tag is activated, and a calculation device specifies the pneumatic fender based on the identification information and determines a condition of the pneumatic fender based on the detection data.
G06K 19/07 - Supports d'enregistrement avec des marques conductrices, des circuits imprimés ou des éléments de circuit à semi-conducteurs, p. ex. cartes d'identité ou cartes de crédit avec des puces à circuit intégré
G06K 19/077 - Détails de structure, p. ex. montage de circuits dans le support
28.
FUNCTIONAL-COMPONENT-ATTACHED ACCOMMODATING BODY AND TIRE
Provided is a housing body with a functional component and a tire. A functional component is configured to acquire tire information and a housing body is provided to house the functional component. The housing body includes a bottom portion fixed to a tire inner surface, a side wall portion protruding from the bottom portion, a housing portion formed by the bottom portion and the side wall portion, and an opening portion communicating with the housing portion. At least part of an inner wall surface of the side wall portion has an uneven region composed of a plurality of protruding portions and/or recessed portions.
Provided is a pneumatic tire capable of excellently retaining high-speed durability even when a recycled PET resin is used for a carcass cord. In a pneumatic tire provided with a carcass layer 4, an organic fiber cord comprising a PET resin having a melting point of 240-260°C is used as a carcass cord constituting the carcass layer 4, and the PET resin contains a recycled PET resin.
The present invention provides a tire and a method for manufacturing the same in which innovative placement of a transponder makes it possible to improve the external damage resistance and durability of the transponder, thereby preventing damage to the transponder. The tire comprises: a tread part extending in the tire circumferential direction and forming a ring shape; a pair of sidewall parts disposed on both sides of the tread part; and a pair of bead parts disposed on the inner sides of these sidewall parts 2 in the tire radial direction, with a raised part 30 protruding from a tire reference plane R on a tire inner surface Ti and/or a tire outer surface To of the sidewall parts 2, wherein a transponder 20 is embedded in the sidewall parts 2, and an IC chip 21 constituting the transponder 20 is disposed in a location that corresponds to the raised part 30.
A tire-rim assembly includes a tire mounted on a specified rim, the tire having a cross-sectional height of 50-150 mm, in an unloaded state, mounted on the specified rim and inflated to a specified internal pressure. An opening distance A between the tire and a rim flange on a perpendicular line from an outermost point of the rim flange in the radial direction to a tire outer surface relative to the cross-sectional height SH satisfies 0.01≤A/SH≤0.16, and a point P at which a horizontal line in a width direction passing through the outermost point of the rim flange in the radial direction intersects with the tire outer surface, a point Q specifying a rim width and a rim diameter of the specified rim, and an angle α formed by a straight line connecting the points P and Q and a horizontal line in the tire width direction satisfies 50°≤α≤80°.
A resin composition contains elastomer having a polyisobutylene backbone and silane-modified resin. A content of the elastomer having a polyisobutylene backbone is 30 mass % or more and 90 mass % or less with respect to a mass of the resin composition. A content of the silane-modified resin 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 0.2 or more and 1.0 or less.
C08L 9/00 - Compositions contenant des homopolymères ou des copolymères d'hydrocarbures à diènes conjugués
B29C 35/02 - Chauffage ou durcissement, p. ex. réticulation ou vulcanisation
B29C 48/00 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet
B29C 48/395 - Moyens pour plastifier ou homogénéiser la matière à mouler ou pour la forcer dans la filière ou la matrice utilisant des vis entourées par un fourreau coopérant, p. ex. des extrudeuses à vis simple
B29K 9/00 - Utilisation de caoutchouc dérivé de diènes conjugués comme matière de moulage
A belt layer includes an inner cross belt having a belt cord angle with an absolute value of 45 degrees or more relative to the circumferential direction, an outer cross belt having a belt cord angle with an absolute value of 45 degrees or less relative to the circumferential direction with an opposite sign as the belt cord angle of the inner cross belt and outward of the inner cross belt in the radial direction, and a circumferential reinforcing layer including a belt cord having a belt angle within ±5 degrees relative to the circumferential direction and disposed between the inner and outer cross belts. A width W1 of the circumferential reinforcing layer in the width direction, a width W2 of the inner cross belt in the width direction, and a width W3 of the outer cross belt in the width direction satisfy a relationship W1
B60C 9/20 - Structure ou disposition des ceintures, des couches de protection, des couronnes de renforcement ou des couches amortissantes constituées par des nappes gommées ayant chacune leurs fils disposés sensiblement en parallèle
A flush switch for an aircraft lavatory unit includes a first flush switch of a contact type configured to be actuated by a push button and a second flush switch of a non-contact type including a human body sensor. The first flush switch and the second flush switch are attached to a single base member and covered with a single cover.
A pneumatic tire includes a circumferentially continuous recess in at least one sidewall outer surface. In a meridian cross-section, an area A of a region surrounded by outlines of the sidewall and a bead and a tangent line, an area S of a region surrounded by the outlines of the sidewall and the bead, a carcass body, a perpendicular line L2, a perpendicular line L3, and a thickness G1 of a bead filler measured along the perpendicular line L2 satisfy 0.10×(G1−17)≤A/(S+A)≤0.05×(G1−10), the tangent line being straight and contacting the outlines of the sidewall and the bead, a contact point being where the tangent line and the sidewall outline contact, the perpendicular line L2 being straight and passing through a turned-up edge of a carcass and perpendicularly intersecting the carcass body, the perpendicular line L3 being straight and passing through the contact point and perpendicularly intersecting the carcass body.
This tire has, in a tire side surface, a ridge region 5 formed by arranging a plurality of ridges 52 (52A‒52D). Each of the plurality of ridges 52 has, when viewed in a plan view of the tire side surface, a ring structure or a cut-away ring structure having a cut-away part in one portion, and each of the ridges 52 is formed by connecting three or more annular protrusions 521a‒521c radially protruding from the center of the ridge and at least one annular recess 522a‒522c that is recessed toward the center of the ridge. The three or more annular convex protrusions 521a‒521c have a smoothly curved arch shape.
In a tire, a middle land portion includes a first middle narrow groove having a linear shape or an arc shape and extending through the middle land portion and a second middle narrow groove having a Z-shape and extending through the middle land portion. A center land portion includes a first center narrow groove having one end at an edge portion of the center land portion, connected to a center main groove, and having an other end inside the center land portion and a second center narrow groove extending in a tire circumferential direction and having both ends inside the center land portion. The first center narrow groove is inclined in one direction of the tire circumferential direction from the one end toward the other end. The first and second center narrow grooves are arranged in a V-shape whose top portion is directed to the one direction.
B60C 11/04 - Sculptures des bandes de roulement dans lesquelles la surface en relief des sculptures est composée uniquement de nervures circonférentielles continues, p. ex. en zigzag
This tire comprises, on a tire side surface, a ridge region 5 formed by arranging a plurality of ridge units U (UA to UD). Each of the plurality of ridge units U includes, in plan view of the tire side surface, a first ridge 52 having an annular structure, and a second ridge 53 having a linear structure and extending along an inner periphery of the first ridge 52. The first ridge 52 is formed by connecting two or more annular projecting parts 521a-521c projecting radially from a ridge center and at least one of annular recessed parts 522a-522c which are recessed toward the ridge center.
This tire comprises a marked portion 2 that is formed on a tire side surface. The marked portion 2 comprises a housing 21 which is formed on the tire side surface and a plurality of ridges 22 which protrude from the bottom surface of the housing 21 and are arranged in parallel in a prescribed direction. The ratio of the height H22 of the ridges 22 to the depth H21 of the housing 21 is within the range of 1.00 ≤ H22 / H21. The pitch length P22 of the plurality of ridges 22 is within the range of 0.05 [mm] ≤ P22 ≤ 0.50 [mm].
This tire has a tire side surface on which a ridge region 5 formed by arranging a plurality of ridge units U (UA to UD) is provided. Furthermore, each of the plurality of ridge units U includes, in a plan view of the tire side surface: a first ridge 52 having a ring-shaped structure or a notched ring-shaped structure having notched portions in portions thereof; and a second ridge 53 extending along the inner periphery of the first ridge 52. Furthermore, the first ridge 52 is formed by connecting two or more annular projecting portions 521a to 521c that project radially from the center of the ridge and at least one annular recessed portion 522a to 522c that is recessed toward the center of the ridge.
The present invention provides a sealant material composition which constitutes a sealant layer of a pneumatic tire that is provided with the sealant layer on the inner surface of the tire. This sealant material composition is characterized by containing (A) a rubber component which is composed of 50-100 parts by mass of a natural rubber and/or a synthetic isoprene rubber, and 0-50 parts by mass of a styrene-butadiene copolymer rubber, a butadiene rubber, or a mixture thereof, (B) a vulcanization accelerator, and (C) sulfur, and is also characterized in that the ((B) vulcanization accelerator)/((C) sulfur) ratio (mass ratio) is 2.5 or more.
The purpose of the present invention is to provide a tire capable of achieving excellent power supply efficiency without hindering a magnetic field reaching a power reception coil from a power transmission coil by a metal member even if a steel cord is used for a belt. In a tire meridian cross-sectional view, a power reception coil (40) is provided in a tire radial direction region (WH) from the outermost position of a bead core (14) in the tire radial direction to the innermost position of the belt (20) in the tire radial direction, and the relative dielectric constant of a member excluding a tread part and disposed in the tire radial direction region is 3.5-250.
B60C 19/00 - Autres structures ou éléments du pneumatique
B60C 1/00 - Pneumatiques caractérisés par la composition chimique, la disposition ou le mélange physique de la composition
B60C 5/14 - Pneumatiques ou chambres intérieures gonflables sans éléments internes gonflables distincts, p. ex. pneumatiques sans chambre à air dont la section transversale est ouverte sur la jante avec chemise ou revêtement imperméable sur la paroi intérieure du pneumatique
B60C 11/00 - Bandes de roulement des pneumatiquesSculptures des bandes de roulementPièces rapportées antidérapantes
B60C 11/01 - Forme des épaulements entre bande de roulement et flanc du pneumatique, p. ex. arrondie, à paliers ou en porte-à-faux
B60C 13/00 - Flancs du pneumatiqueProtection, décoration, marquage ou opérations similaires concernant ces derniers
B60C 15/06 - Pointes de gomme, garnitures, toiles de frottement
Provided are: a tire capable of suppressing decrease in power supply efficiency even on wet road surfaces; and a wireless power supply system utilizing the tire. A tire 10 includes: a tread section D that includes a tread surface 34; a pair of bead sections A; and a pair of sidewall sections B disposed between the tread section D and the bead sections A. The tire 10 comprises a power reception coil 40 that receives power supplied via an alternating-current magnetic field from outside the tire 10. In a view of a tire meridian cross-section in a non-loaded state, the power reception coil 40 is disposed on the radially inner side of the tire relative to the outermost position OP where a first virtual line L1, forming an angle α of 15° with a tire equatorial plane CP, and a tire side surface contact.
B60C 19/00 - Autres structures ou éléments du pneumatique
B60C 3/04 - Pneumatiques caractérisés par leur section transversale caractérisés par les dimensions relatives de la section, p. ex. par un profil bas
B60C 5/00 - Pneumatiques ou chambres intérieures gonflables
B60C 9/00 - Armatures des pneumatiques ou disposition des nappes dans ces derniers
B60C 9/18 - Structure ou disposition des ceintures, des couches de protection, des couronnes de renforcement ou des couches amortissantes
B60C 9/20 - Structure ou disposition des ceintures, des couches de protection, des couronnes de renforcement ou des couches amortissantes constituées par des nappes gommées ayant chacune leurs fils disposés sensiblement en parallèle
A housing body with a functional component includes a functional component configured to acquire tire information and a housing body adapted to house the functional component. The functional component includes a housing containing an electronic component, and a piezoelectric element having a film-shape and being fixed to a wall surface of the housing. At least one projection is formed on an inner surface of the housing body, and at least a part of the projection and the piezoelectric element are directly in contact with each other or indirectly in contact with each other via the wall surface of the housing in an unloaded state and in a state where the functional component is housed in the housing body.
In a tire, a stress relaxation layer extends continuously from a groove bottom of a main groove to road contact surfaces of left and right land portions and covers edge portions of the land portions in a cross-sectional view in a tire meridian direction. A width Wc of the stress relaxation layer on the road contact surfaces of the land portions with respect to a groove depth Hg1 of the main groove is in the range of 0.06≤Wc/Hg. A total width ΣWc of the stress relaxation layer on the road contact surface of one of the land portions with respect to a ground contact width Wb1, Wb2 of the land portions is in the range of ΣWc/Wb≤0.70.
B60C 11/13 - Sculptures des bandes de roulement caractérisées par la section transversale de la rainure, p. ex. pour étayer les parois, ou pour empêcher le coincement de pierres
A fuel transportation hose of an embodiment of the present technology includes an inner layer, an intermediate layer, a reinforcing layer, and an outer layer laminated in this order. The inner layer contains a thermoplastic resin composition containing first thermoplastic resin having a deflection temperature under load of 75° C. or higher and second thermoplastic resin having a deflection temperature under load of lower than 75° C. The intermediate layer contains a rubber composition containing nitrile rubber. The inner layer and the intermediate layer are bonded in a direct manner or via an adhesive layer.
F16L 11/08 - Manches, c.-à-d. tuyaux flexibles en caoutchouc ou en matériaux plastiques flexibles avec armature noyée dans la paroi
F16L 11/12 - Manches, c.-à-d. tuyaux flexibles en caoutchouc ou en matériaux plastiques flexibles avec agencements pour usages particuliers, p. ex. spécialement profilés, avec couche protectrice, chauffés, conducteurs d'électricité
Provided is a tire having improved noise performance while maintaining wet performance. When a portion inward, in the tire width direction, of groove width center lines of circumferential main grooves 14c, 14d on the outermost side in the tire width direction is defined as a center region CR, at least one bent groove 26 (28) having at least one end in the tire width direction in communication with a circumferential main groove and having at least two bent parts is provided in at least one land part 16 formed in the center region. The groove width W1 (W2) of a first portion 26a (28a) from one end of the bent groove to just before a bent part that appears first and the groove width W3 (W4) of a second portion 26b (28b) from the other end of the bent groove to just before a bent part that appears first are substantially the same over the entire circumference of the tire, and satisfy P2 (%)>P1 (%) and P2 (%)>P3 (%).
A functional component to acquire tire information is housed by a housing body. The housing body includes a bottom fixed to a tire inner surface, a crown protruding from the bottom portion, a housing space formed by the bottom and the crown, and an opening communicating with the housing space. An inclination angle θ2 of the crown measured on an outer wall side of the crown in a state where the functional component is housed in the housing space with respect to the bottom is smaller than an inclination angle θ1 of the crown measured on the outer wall side of the crown in a state where the functional component is not housed in the housing space with respect to the bottom. An angle difference θ1−θ2 between the inclination angle θ1 and the inclination angle θ2 is in a range of 5 to 15°.
A functional component to acquire tire information is housed by a housing body. The housing body includes a bottom portion fixed to a tire inner surface, a crown portion protruding from the bottom portion, a housing space formed by the bottom portion and the crown portion, and an opening portion communicating with the housing space. The opening portion has a width smaller than a minimum width of the housing space. A circumferential length (D2u) of an upper portion of the housing space and a circumferential length (D1u) of an upper portion of the functional component satisfy a relationship 0.60≤D2u/D1u≤0.95.
Provided is a tire that has improved noise performance while retaining snow performance. At least two bent grooves 26 (28) which each have at least one tire width-directional end connected to a circumferential main groove and which each have at least two bent sections are provided. Groove parts of at least one set, among groove parts adjacent to each other in the tire circumferential direction, have different groove widths. PTA1 (%) is not less than 0% but less than 50%, and the relationships of PTB2(%)>PTB1(%) and PTB2(%)>PTB3(%) are satisfied.
The present invention discloses a rubber composition for tires, characterized by comprising 100 parts by mass of a diene-based rubber consisting of a styrene/butadiene copolymer rubber and, mixed therewith, 5-120 parts by mass of a hydrogenated rosin ester resin having an acid value of 30 mgKOH/g or less.
A resin silencer includes an insertion-side component with a circumferential rib on an outer surface of a barrel portion, an insertion portion on one axial end of the barrel portion, and a pipe portion connected to the other end portion via an expanded pipe portion and a resin receiving-side component with a circumferential rib on an outer circumferential surface of another barrel portion. A receiving portion on the other axial end of the other barrel portion, and a pipe portion connected to one end portion via another expanded pipe portion are inserted into an annular groove of the receiving portion. The barrel portions joined by spin welding a joint portion are made a cylindrical portion, with cylindrical flow stopping wall portions connected to outer and inner circumferential sides of the joint portion with gaps.
F24F 13/24 - Moyens pour éviter ou supprimer le bruit
B29C 69/02 - Combinaisons de techniques de façonnage non prévues dans un seul des groupes principaux , p. ex. associations de techniques de moulage et d'assemblageAppareils à cet effet de techniques de moulage uniquement
64.
ACCOMMODATING BODY WITH FUNCTIONAL COMPONENT, AND TIRE
A housing body is adapted to house a functional component to acquire tire information. The functional component includes a housing and a piezoelectric element fixed to a wall surface of the housing. A projection is formed on an inner surface of the housing body. The projection and the piezoelectric element are directly or indirectly in contact with each other via the wall surface of the housing in an unloaded state and in a state where the functional component is housed in the housing body. In a top view of the projection, an area of a bottommost surface of the projection is larger than an area of an uppermost portion of the projection, and an outer edge of the uppermost portion of the projection is located on an inner side of an outer edge of the bottommost surface of the projection.
Provided are a conveyor belt management system and a method with which the state of a conveyor belt under various use conditions can be more reliably ascertained. In the present invention, a radio wave-type IC tag 2A and an electromagnetic coupling-type IC tag 2B are installed as a passive-type IC tag 2 on a conveyor belt 13. In response to transmission radio waves R1 transmitted from a detector 7 toward the IC tags 2A, 2B of the conveyor belt 13 mounted on a conveyor device 10, return radio waves R2 returned from the respective IC tags 2A, 2B are received by the detector 7. The operation state of the conveyor belt 13 is ascertained by an arithmetic device 8 using the return radio waves R2. Alternatively, detection data from a sensor unit 6 connected to the IC tags 2A, 2B is transmitted from the IC tags 2A, 2B to the detector 7 by the return radio waves R2 and input to the arithmetic device 8, and the state of the conveyor belt 13 is ascertained by the arithmetic device 8 on the basis of the detection data.
B65G 43/02 - Dispositifs de commande, p. ex. de sécurité, d'alarme ou de correction des erreurs détectant une condition physique dangereuse des porte-charges, p. ex. pour stopper l'entraînement en cas d'échauffement
B65G 15/30 - Courroies ou porte-charges sans fin analogues
A tire includes main grooves and rows of lands. At least one of the main grooves has a groove wall angle on a vehicle inner side smaller than a groove wall angle on a vehicle outer side. The rows of lands include center, intermediate, and shoulder lands. Shoulder lug grooves in at least one of the shoulder lands communicate with the main groove. The intermediate lands include intermediate lug grooves opening to the main groove and terminating within the intermediate lands, first sipes opening to the main groove and to the intermediate lug grooves, and second sipes opening to the main groove located opposite to the main groove to which the intermediate lug grooves open and opening to the intermediate lug grooves. The first and second sipes each include a chamfer on only one of a step-in side edge or a kick-out side edge.
B60C 11/13 - Sculptures des bandes de roulement caractérisées par la section transversale de la rainure, p. ex. pour étayer les parois, ou pour empêcher le coincement de pierres
In a functional component assembly including a functional component for detecting a tire state, and a support body that accommodates the functional component and is attached to a tire inner surface, the functional component is fixed inside a housing portion of the support body via a locking portion including a protrusion portion and a receiving portion, one of the protrusion portion and the receiving portion is provided on a side wall of the housing portion and the other of the protrusion portion and the receiving portion is provided on a portion of the functional component in contact with the side wall, and in a state where the functional component is not accommodated in the support body, a ratio h/H of a height H of the locking portion on the support body side and a height h of the locking portion on the functional component side satisfies a relationship 1.00
A tire 10 includes, in a tread surface 14, two circumferential main grooves 16 and a plurality of V-shaped grooves 18 which are arranged on the inner side in the tire width direction of the two circumferential main grooves 16 and are provided at intervals in the tire circumferential direction. Center land parts 22 are formed demarcated by the two circumferential main grooves 16 and the V-shaped grooves 18 adjacent to one another in the tire circumferential direction. The V-shaped grooves 18 respectively have tip parts 20 projecting in a V-shape to one side in the tire circumferential direction, extend from the tip parts 20 to both sides in the tire width direction, and are connected to the two circumferential main grooves 16. A plurality of inclined narrow grooves 30 are provided between the tire center line CL and a circumferential main groove 16 on one side and between the tire center line CL and a circumferential main groove 16 on the other side. The inclined narrow grooves 30 are inclined outward in the tire width direction toward one side in the tire circumferential direction, and are connected to the V-shaped grooves 18 adjacent thereto in the tire circumferential direction. The tip parts 20 are each provided with a first branch groove 32 and a second branch groove 34. The first branch groove 32 is terminated in the corresponding center land part 22. The second branch groove 34 is connected to the corresponding V-shaped groove 18 adjacent thereto on the one side in the tire circumferential direction.
An object of the present invention is to provide: a polyurethane composition that is excellent in working life, curability under room temperature conditions and in an open system, blister resistance, hardness after curing, abrasion resistance, and water resistance; and a marine hose. The present invention is a room-temperature curable polyurethane composition including a urethane prepolymer that is formed from a polyether polyol and tolylene diisocyanate and includes isocyanate groups, a curing agent that contains trimethylene-bis(4-aminobenzoate) and/or 2-methylpropyl 3,5-diamino-4-chlorobenzoate, and adipic acid that acts as a catalyst, in which a mole ratio of the isocyanate groups included in the urethane prepolymer to amino groups included in the curing agent is within a range from 0.90 to 2.00, and a content of trimethylene-bis(4-aminobenzoate) and/or 2-methylpropyl 3,5-diamino-4-chlorobenzoate is within a range from 95 to 100 mol % in a total amount of the curing agent; and the present invention is a marine hose formed by using the same.
F16L 11/04 - Manches, c.-à-d. tuyaux flexibles en caoutchouc ou en matériaux plastiques flexibles
C08G 18/10 - Procédés mettant en œuvre un prépolymère impliquant la réaction d'isocyanates ou d'isothiocyanates avec des composés contenant des hydrogènes actifs, dans une première étape réactionnelle
In a tire according to an embodiment of the present invention, a protrusion length L1 of a tie rubber layer extending along a carcass layer from a position A on a tire inner surface corresponding to a belt end to a position B on the tire inner surface corresponding to a bead toe is 0.2 times or more of a periphery length L2 of the tire inner surface between said position A and said position B. Regarding carbon black included in the tie rubber layer and a carcass coating rubber, the CTAB adsorption specific surface areas are 40-125 m2/g and 25-40 m2/g, the DBP absorption amounts are 100-130 mL/100 g and 60-95 mL/100 g, and the products of the DBP absorption amount and the volume fraction of the carbon black are 18.0-28.0 mL/10000 g and 14.0-18.0 mL/10000 g, respectively.
B60C 1/00 - Pneumatiques caractérisés par la composition chimique, la disposition ou le mélange physique de la composition
B60C 5/14 - Pneumatiques ou chambres intérieures gonflables sans éléments internes gonflables distincts, p. ex. pneumatiques sans chambre à air dont la section transversale est ouverte sur la jante avec chemise ou revêtement imperméable sur la paroi intérieure du pneumatique
B60C 9/08 - Carcasses les fils de renforcement de chaque pli de la carcasse étant sensiblement parallèles joignant transversalement un talon à l'autre, c.-à-d. formant une nappe radiale
Provided are a pneumatic fender management system and method which are capable of more effectively using a fender by suppressing uneven wear on a range of a fender caused by contact by a ship. A pneumatic fender 11A is installed on a quay 10 such that the rotation thereof about the cylindrical axial center CL is restrained. Passive type IC tags 2 are installed at opposing positions spaced apart in the circumferential direction of a fender body 12. A communication apparatus 7 that is capable of wireless communication with the IC tags 2 is arranged outside of the pneumatic fender 11A. Identification information about the IC tags 2, the circumferential direction installation positions of the IC tags 2 in the fender body 12, and the circumferential direction arrangement positions of the IC tags 2 in the quay 10 are understood to serve as prior information. Additionally, a position fixation period related to the circumferential direction of the fender body 12 on the quay 10 is specified by a computation device 8 on the basis of the identification information about the IC tags 2 acquired by the communication apparatus 7 by using wireless communication, the circumferential direction arrangement positions of the IC tags 2 on the quay 10 when the identification information was acquired, and the prior information.
A rubber composition for a tire contains: 100 parts by mass of a diene rubber containing ≥55 mass % of styrene-butadiene rubber; and ≥15 parts by mass of thermoplastic resin. The styrene-butadiene rubber has a glass transition temperature of ≤−55° C. and a total amount of a styrene monomer-derived unit and a vinyl monomer-derived unit of ≤50 mol %. Tga−Tgm≤10° C., where Tga is a theoretical glass transition temperature of a mixture of the diene rubber and the thermoplastic resin, blended at a mass ratio of 1:1, and Tgm is a measured glass transition temperature of the mixture. tan δMAXA/tan δMAXB>0.8 is satisfied, where tan δMAXA is a loss tangent maximum value at −40° C. to 60° C. of the rubber composition and tan δMAXB is a loss tangent maximum value at −40° C. to 60° C. of a rubber composition B where the thermoplastic resin of the rubber composition is replaced with oil.
To provide a rubber composition for a tire capable of achieving improved snow performance, wet performance and wear resistance performance in a highly balanced manner. For a rubber composition for a tire, containing: 100 parts by mass of a diene rubber containing 55 mass % or more of a styrene-butadiene copolymer whose glass transition temperature is −55° C. or lower and 5 mass % or more of a butadiene copolymer; 30 parts by mass or more and less than 100 parts by mass of a white filler; and 15 parts by mass or more and 80 parts by mass or less of a thermoplastic resin, a difference Tga−Tgm between Tga and Tgm is set to 10° C. or less, where Tga is a theoretical glass transition temperature of a mixture in which the diene rubber and the thermoplastic resin are blended at a mass ratio of 1:1.
A tire rubber composition contains: 100 parts by mass of a diene rubber containing 55 mass % or more of a solution-polymerized styrene-butadiene rubber whose glass transition temperature is −50° C. or lower; 30 parts by mass or more and less than 100 parts by mass of a white filler; and 15 parts by mass or more of a thermoplastic resin, from 3 to 20 mass % of a silane coupling agent being blended relative to a mass of the white filler. The rubber composition satisfies Tga-Tgm of 10° C. or less, where Tga is a theoretical glass transition temperature of a mixture in which the diene rubber and the thermoplastic resin are blended at a mass ratio of 1:1, Tga being calculated from glass transition temperatures of the diene rubber and the thermoplastic resin, and Tgm is a measured glass transition temperature of the mixture.
The present invention provides a tube in which residual stress is eliminated while maintaining flexibility. The tube includes a thermoplastic resin composition having a sea-island structure comprising a rubber-containing island phase and a thermoplastic resin-containing sea phase. The thermoplastic resin composition contains 100 parts by mass of rubber and 30 to 120 parts by mass of thermoplastic resin. The tube is at least 0.1 mm thick. Let circularity (inner surface) denote the circularity of the island phase in a cross section of the tube when cut by a plane containing the center axis of the tube, said cross section having a range of 5 μm in the thickness direction from the inner surface of the tube, and let circularity (central) denote the circularity of the island phase in the cross section of the central 5 μm range of the tube in the thickness direction; in this case, the circularity (inner surface) and the circularity (central) satisfy the following expressions (1) and (2): (1) 0.35 ≤ circularity (inner surface) ≤ 1.0; (2) 60 ≤ circularity (inner surface) / circularity (central) × 100 ≤ 120.
F16L 11/04 - Manches, c.-à-d. tuyaux flexibles en caoutchouc ou en matériaux plastiques flexibles
B29C 48/08 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet caractérisées par la forme à l’extrusion de la matière extrudée plate, p. ex. panneaux flexible, p. ex. pellicules
B29C 48/154 - Revêtement d’articles pleins, c.-à-d. d’articles non creux
C08J 5/00 - Fabrication d'objets ou de matériaux façonnés contenant des substances macromoléculaires
C08L 21/00 - Compositions contenant des caoutchoucs non spécifiés
C08L 23/22 - Copolymères de l'isobutylèneCaoutchouc butylHomopolymères ou copolymères d’autres iso-oléfines
C08L 77/00 - Compositions contenant des polyamides obtenus par des réactions créant une liaison amide carboxylique dans la chaîne principaleCompositions contenant des dérivés de tels polymères
C08L 101/00 - Compositions contenant des composés macromoléculaires non spécifiés
[Problem] To provide a tire that has, on a tire-inner-surface of a tread section, a storage body storing a functional component, and that affords excellent sensing strength of a sensor function of the functional component and superior durability of the storage body. [Solution] The present invention solves the above problem by providing, on a tire-inner-surface of a tread section, a storage body storing a functional component. The functional component has at least a contact surface that contacts the tire-inner-surface and a sensor function for detecting tire information. The storage body comprises a rubber component, the rubber component containing 60 mass percent or more of butyl rubber (IIR) and a natural rubber (NR) content ratio of 40 mass percent or less, and further containing 40 to 82 parts by mass of carbon black with respect to 100 parts by mass of the rubber component.
Provided are a pneumatic tire capable of suppressing the peeling of a sealant layer and improving tire balance, and a method for manufacturing the same. In a pneumatic tire comprising an annular tread part 1 extending in the circumferential direction of the tire, a pair of side wall parts 2 disposed on both sides of the tread part 1, and a pair of bead parts 3 disposed on the inside of the side wall parts 2 in the radial direction of the tire, a sealant layer 20 is formed on a tire inner surface 10 of the tread part 1, the sealant layer 20 having a structure in which a band material 21 of sealant is spirally disposed along the tire circumferential direction, at least one end portion of the band material 21 being thinner than the other portions thereof.
B60C 19/12 - Dispositifs pour empêcher les perforations
B29D 30/06 - Pneumatiques ou leurs parties constitutives
B60C 1/00 - Pneumatiques caractérisés par la composition chimique, la disposition ou le mélange physique de la composition
B60C 5/00 - Pneumatiques ou chambres intérieures gonflables
B60C 9/18 - Structure ou disposition des ceintures, des couches de protection, des couronnes de renforcement ou des couches amortissantes
B60C 9/22 - Structure ou disposition des ceintures, des couches de protection, des couronnes de renforcement ou des couches amortissantes constituées par des nappes gommées ayant chacune leurs fils disposés sensiblement en parallèle les nappes étant disposées avec tous leurs fils orientés selon la circonférence du pneumatique
C09K 3/10 - Substances non couvertes ailleurs pour sceller ou étouper des joints ou des couvercles
The present invention provides a remote management system and method which make it possible to reliably ascertain the state of an object such as a fender while avoiding the constraints of radio communication and which suppresses energy consumption in an ascertaining process. A sensor 2 and a transmission/reception terminal 3 that are operated by a battery 4 are installed on each fender 9. When detection data M obtained by each sensor 2 is transmitted to a relay device 5A by a radio wave W from each transmission/reception terminal 3, communication based on a prescribed LPWA communication standard is used. When a communication strength S between each transmission/reception terminal 3 and the relay device 5A is equal to or larger than a reference value Sc, the transmission is performed by a direct route Rd from each transmission/reception terminal 3 to the relay device 5A. When the communication strength S is smaller than the reference value Sc, the transmission is performed by a detour route Rb in which another transmission/reception terminal 3 is interposed between each transmission/reception terminal 3 and the relay device 5A. A management index based on the detection data is stored in a server 5B. The management index is displayed on specific devices 6a, 6b, 6c capable of accessing the server 5B.
H04Q 9/00 - Dispositions dans les systèmes de commande à distance ou de télémétrie pour appeler sélectivement une sous-station à partir d'une station principale, sous-station dans laquelle un appareil recherché est choisi pour appliquer un signal de commande ou pour obtenir des valeurs mesurées
G08C 15/00 - Dispositions caractérisées par l'utilisation du multiplexage pour la transmission de plusieurs signaux par une voie commune
G08C 15/06 - Dispositions caractérisées par l'utilisation du multiplexage pour la transmission de plusieurs signaux par une voie commune successivement, c.-à-d. utilisant la division de temps
G08C 17/00 - Dispositions pour transmettre des signaux caractérisées par l'utilisation d'une voie électrique sans fil
A tire includes bead cores, a carcass layer extended across the bead cores, a belt layer on a radially outer side of the carcass layer, and a tread portion. The tire outer diameter OD (mm) satisfies 200≤OD≤660. The total tire width SW (mm) satisfies 100≤SW≤400. A groove area ratio Aa (%) of the tread portion satisfies 0.008≤Aa/OD≤0.150. When a region of 48×(OD/SW){circumflex over ( )}(1/5) (%) from a maximum ground contact width end portion on a tire inner side when the tire is mounted on a vehicle is defined as a tire inner region of the tread portion, a groove area ratio Ai (%) of the tire inner region and a groove area ratio Ao (%) of a tire outer region as a region other than the tire inner region have a relationship Ai>Ao.
Provided are a resin pipe, an assembly of the resin pipe and a hose, and a method for manufacturing the resin pipe, with which it is possible to reduce weight and to improve durability and sealability of a nipple to which the hose is externally fitted and caulked. A metal core pipe 5 is internally fitted in a predetermined range X including the total length of a caulking range CA in which a hose 7 is caulked in the longitudinal direction of a resin nipple 4 at the tip part of a resin pipe 1, and a fitting recess 4a and a fitting projection 4b formed in the nipple 4, and a notch part 6a and a recessed part 6b formed in the core pipe 5 restrict the movement of the core pipe 5 in the axial direction and the circumferential direction in relation to the nipple 4 to integrate the nipple 4 and the core pipe 5. A hose fitting 8 is externally inserted in a state in which the hose 7 is externally fitted to the nipple 4, and the hose fitting 8 is caulked to fix the hose 7 to the nipple 4.
F16L 33/207 - Segments, manchons ou autres organes d'une seule pièce enserrant la manche ou dilatés à l'intérieur de la manche au moyen d'outilsAgencements utilisant de tels organes avec uniquement un manchon contracté sur la manche
B29C 45/14 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet en incorporant des parties ou des couches préformées, p. ex. moulage par injection autour d'inserts ou sur des objets à recouvrir
F16L 9/147 - Tubes en matériaux composites, c.-à-d. faits de matériaux non complètement couverts dans un seul des groupes précédents comportant uniquement des couches en métal et en matière plastique avec ou sans renforcement
F16L 13/14 - Raccords de tuyaux non démontables, p. ex. raccords soudés, collés ou matés réalisés par déformation plastique du matériau du tuyau, p. ex. par déformation des brides, par laminage
F16L 33/00 - Dispositions d'assemblage des manches avec des organes rigidesRaccords rigides pour manches, p. ex. éléments unitaires s'engageant à la fois dans deux manches
Provided is a resin pipe, equipped with a seal material, which is capable of stably ensuring excellent sealing properties for a long period of time. Among a plurality of annular grooves 6a, 6b that are formed, at an interval in the pipe axial direction, in the outer circumferential surface of a connection end 5 of a resin pipe 2, an annular seal material 8a disposed in the forefront annular groove 6a located closest to the pipe edge of the connection end 5 is configured to have an amount of projection P1 in the pipe radial direction from the outer circumferential surface of the connection end in a manner as to be smaller than an amount of projection P2 of an annular seal material 8b disposed in the other annular groove 6b. The resin pipe 1 is connected with and secured to a connection object 11 by inserting the connection end 5 into a connection hole 11a formed in the connection object 11. As compared to said one seal material 8a, the other seal material 8b is more strongly pressed by the inner circumferential surface of the connection hole 11a, whereby a gap S between the outer circumferential surface of the connection end 5 and the inner circumferential surface of the connection hole 11a is sealed.
F16L 47/06 - Raccordements ou autres accessoires de raccordement spécialement adaptés pour être en matières plastiques ou pour être utilisés avec des tuyaux en matières plastiques comprenant un manchon ou une douille constitué par l'extrémité du tuyau ou formé dans celle-ci
F16J 15/10 - Joints d'étanchéité entre surfaces immobiles entre elles avec garniture solide comprimée entre les surfaces à joindre par garniture non métallique
F16L 21/035 - Raccords avec manchon ou douille avec segments d'étanchéité élastiques entre le tuyau et le manchon ou entre le tuyau et la douille, p. ex. avec des segments roulants ou autres segments profilés préfabriqués placés sur l'extrémité mâle avant la fixation
Provided is a method for producing a resin tube, the method making it possible to improve the durability and sealability of a nipple to which a hose is externally fitted and crimped, and also acheive a weight reduction. One end part 17a of a cavity 17 and one end part-side discharge cavity 17d are blocked, and the cavity 17 is filled with a molten resin R1 injected from the one end part 17a, and then a communication path between the one end part 17a and an injection machine 11 is blocked, the one end part 17a and the one end part-side discharge cavity 17d are communicated, an assist material As is injected from another end part 17b, excess molten resin R1 is discharged from the cavity 17 to the one end part-side discharge cavity 17d, tubular-shaped molten resin R1 remaining in the cavity 17 is hardened to form a resin tube 1, and a fitting projection 4b to be fitted into a notch part 6a of a core tube 5 is formed on the nipple 4, and the axial- and circumferential-direction movement of the core tube 5 fitted into the nipple 4 is regulated.
B29C 45/14 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet en incorporant des parties ou des couches préformées, p. ex. moulage par injection autour d'inserts ou sur des objets à recouvrir
B29C 45/16 - Fabrication d'objets multicouches ou polychromes
F16L 9/147 - Tubes en matériaux composites, c.-à-d. faits de matériaux non complètement couverts dans un seul des groupes précédents comportant uniquement des couches en métal et en matière plastique avec ou sans renforcement
Provided is a pneumatic tire in which sealability in low-temperature environments can be ensured. The pneumatic tire includes an annular tread part 1 extending in a tire circumferential direction, a pair of side wall parts 2 located on both sides of the tread part 1, and a pair of bead parts 4 located on the inner sides of the side wall parts 2 in the tire radial direction. A sealant layer 20 is formed on the inner surface of the tire in the tread part 1, and the glass transition temperature of the sealant constituting the sealant layer 20 is equal to or lower than the glass transition temperature of the cap compound constituting the tread part 1.
B60C 19/12 - Dispositifs pour empêcher les perforations
B29D 30/06 - Pneumatiques ou leurs parties constitutives
B60C 1/00 - Pneumatiques caractérisés par la composition chimique, la disposition ou le mélange physique de la composition
B60C 5/00 - Pneumatiques ou chambres intérieures gonflables
B60C 5/14 - Pneumatiques ou chambres intérieures gonflables sans éléments internes gonflables distincts, p. ex. pneumatiques sans chambre à air dont la section transversale est ouverte sur la jante avec chemise ou revêtement imperméable sur la paroi intérieure du pneumatique
B60C 11/00 - Bandes de roulement des pneumatiquesSculptures des bandes de roulementPièces rapportées antidérapantes
C09K 3/10 - Substances non couvertes ailleurs pour sceller ou étouper des joints ou des couvercles
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 19/12 - Dispositifs pour empêcher les perforations
B29D 30/06 - Pneumatiques ou leurs parties constitutives
B60C 5/00 - Pneumatiques ou chambres intérieures gonflables
B60C 9/22 - Structure ou disposition des ceintures, des couches de protection, des couronnes de renforcement ou des couches amortissantes constituées par des nappes gommées ayant chacune leurs fils disposés sensiblement en parallèle les nappes étant disposées avec tous leurs fils orientés selon la circonférence du pneumatique
B60C 15/00 - Talons du pneumatique, p. ex. relèvement ou recouvrement de nappe
C09K 3/10 - Substances non couvertes ailleurs pour sceller ou étouper des joints ou des couvercles
C09K 3/12 - Substances non couvertes ailleurs pour arrêter les fuites, p. ex. dans des radiateurs ou des réservoirs
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 - Éléments constitutifs, détails ou accessoiresOpérations auxiliaires
B29C 33/14 - Moules ou noyauxLeurs détails ou accessoires comportant des moyens incorporés pour positionner des inserts, p. ex. marquages contre la paroi du moule
B29C 45/14 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet en incorporant des parties ou des couches préformées, p. ex. moulage par injection autour d'inserts ou sur des objets à recouvrir
B29C 45/57 - Moyens pour plastifier ou homogénéiser la matière à mouler ou pour la forcer dans le moule exerçant une pression ultérieure sur la matière à mouler
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 19/12 - Dispositifs pour empêcher les perforations
B29D 30/06 - Pneumatiques ou leurs parties constitutives
B60C 1/00 - Pneumatiques caractérisés par la composition chimique, la disposition ou le mélange physique de la composition
B60C 5/00 - Pneumatiques ou chambres intérieures gonflables
B60C 9/00 - Armatures des pneumatiques ou disposition des nappes dans ces derniers
B60C 9/22 - Structure ou disposition des ceintures, des couches de protection, des couronnes de renforcement ou des couches amortissantes constituées par des nappes gommées ayant chacune leurs fils disposés sensiblement en parallèle les nappes étant disposées avec tous leurs fils orientés selon la circonférence du pneumatique
C09K 3/10 - Substances non couvertes ailleurs pour sceller ou étouper des joints ou des couvercles
C09K 3/12 - Substances non couvertes ailleurs pour arrêter les fuites, p. ex. dans des radiateurs ou des réservoirs
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.
