To provide a common-use rockfall protection and avalanche prevention fence which can efficiently absorb the energy of rockfalls and which is more suitable as a protection fence having both functions of rockfall protection and avalanche prevention.
To provide a common-use rockfall protection and avalanche prevention fence which can efficiently absorb the energy of rockfalls and which is more suitable as a protection fence having both functions of rockfall protection and avalanche prevention.
A common-use rockfall protection and avalanche prevention fence includes terminal struts installed at both ends; a plane member fixed to the terminal struts and deployed between the terminal struts; an intermediate strut disposed between the terminal struts; and an attachment wire net for fixedly attaching the plane member to the intermediate strut, a breaking load of fixing of the attachment wire net being smaller than a breaking load of the plane member.
Provided is a protective net that enables more efficient use of a buffering performance of a wire net itself and a blocking surface with a simple structure, thereby reducing the number of parts or simplifying installation work. A protective net 1 includes: a plurality of support pillars 12; a wire net 11 that is suspended from an upper portion of the support pillars 12 toward a lower portion of an inclined surface, and in which ropes connected to anchors are not arranged on a blocking surface; and an upper wire net roll-out structure configured such that, when the wire net 11 is attached to the upper portion of the support pillars 12, the wire net 11 is rolled out from the upper portion of the support pillars 12 when impact energy such as a falling rock is applied to the wire net 11.
Provided is a wiredrawn product drawn from a heat-treated steel containing: 0.38 to 1.05% by mass of C; 0.0 to 1.0% by mass of Mn; 0.0 to 0.50% by mass of Cr; and 0.0 to 1.5% by mass of Si, with the remainder being Fe and unavoidable impurities, wherein a GOS value/average crystal grain size is greater than or equal to −0.6×GAM value+1.5 at a grain boundary setting angle of 2° and a step number of 0.07 μm.
C21D 8/06 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
C21D 9/52 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for wiresHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for strips
4.
FENCE USED FOR BOTH ROCKFALL PROTECTION AND AVALANCHE PREVENTION
The present invention provides a fence used for both rockfall protection and avalanche prevention, the fence being capable of efficiently absorbing rockfall energy and preferably serving as a protection fence having functions for both rockfall protection and avalanche prevention. A fence 1 used for both rockfall protection and avalanche prevention includes: terminal posts 11 erected at two end sections; a face material 13 that is secured to the terminal posts 11 and expanded between the terminal posts 11; an intermediate post 12 disposed between the terminal posts 11; and an attaching wire fence 14 that is a wire fence that attaches the face material 13 to the intermediate post 12 so as to be fixed thereto, wherein the breaking load of said fixing is lower than the breaking load of the face material 13.
Provided is a cable including a stranded member floating-preventing element that can be easily peeled off.
Provided is a cable including a stranded member floating-preventing element that can be easily peeled off.
A power transmission line core includes one core member and six side members twisted around the core member, each member obtained by impregnating a fiber bundle including a plurality of carbon fibers that are continuous in the longitudinal direction and bundled into the fiber bundle with a resin and curing the resin. A tow including a plurality of tow fibers that are continuous in the longitudinal direction and arranged flatly and densely is spirally wound around the surface of the power transmission line core in the direction opposite to the twisting direction of the side members. The tow is detachably entangled in the unevenness on the surface of the power transmission line core.
Provided is a falling rock protection fence in which cables such as wire ropes for catching falling rocks and the like are disposed near the center of the protection fence, wherein the ability of the protection fence to disperse impact energy of falling rocks and the like can be improved due to the fence having, inter alia, a new installation structure for the cables. The falling rock protection fence 1, which prevents falling rocks and the like, comprises: terminal struts 11 erected at both ends; and crisscrossing cables 13 arranged between the terminal struts 11, the cables including falling rock receiving parts 131 stretched laterally between the terminal struts 11 and folded parts 132 folded near the terminal struts 11, and the cables being disposed in a crisscrossing formation due to the falling rock receiving parts 131 and the folded parts 132 being successively repeated in the vertical direction.
The present invention provides a heat-treated steel material which has both excellent tensile strength and excellent toughness. A heat-treated steel material which contains, in mass%, 0.38 to 1.05% of C, 0.0 to 1.0% of Mn, 0.0 to 0.50% of Cr and 0.0 to 1.5% of Si, with the balance being made up of Fe and unavoidable impurities, wherein the average crystal grain size at a grain boundary setting angle of 15° is 10 × C + 7 (μm) or less (meanwhile, C represents the carbon content (%)).
C21D 9/52 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for wiresHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for strips
Provided is a drawn wire material obtained by drawing a heat-treated steel material comprising: 0.38-1.05 mass% of C; 0.0-1.0 mass% of Mn; 0.0-0.50 mass% of Cr; and 0.0-1.5 mass% of Si, with the balance being Fe and unavoidable impurities, wherein the drawn wire material has a GOS value/average crystal grain diameter of at least −0.6×GAM value+1.5, at a grain boundary set angle of 2°, and a step number of 0.07 μm.
C21D 9/52 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for wiresHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for strips
B21C 1/06 - Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums with two or more dies operating in series in which the material slips on the drums
The present invention relates to a fitting (cable anchoring fitting) using a wedge, and provides a cable anchoring fitting having a higher fastening force through a wedge shape that has not hitherto been adopted. A cable anchoring fitting 1 is characterized by comprising: a fitting member 11 provided with a tubular body portion through which a cable 2 is inserted; and a driven member 12 which has a wedge-shaped part to be inserted into the tubular body portion and which is brought into abutment with the cable 2 in the tubular body portion, and is characterized in that an inclined surface of the wedge-shaped part has an inclination with respect to a tilt axis extending along the driven direction of the driven member 12.
F16G 11/04 - Means for fastening cables or ropes to one another or to other objectsCaps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps of grommet-thimble type
F16B 2/14 - Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using wedges
A concrete structure includes a continuous fiber-reinforced polymer material arranged as a main reinforcing material or a tendon. A short fiber reinforcing material consisting of an organic fiber is mixed in 0.5% or more with respect to an entire volume. The continuous fiber-reinforced polymer material is shaped like a rod or a stranded wire. A ratio Lf/Gm between a fiber length Lf of the organic fiber of the short fiber reinforcing material and a maximum aggregate diameter Gm of a concrete composition is 1.2 to 3.7, and an aspect ratio Lf/De, in which De is an equivalent diameter that is a cross-sectional area of the organic fiber converted into a circle diameter, is 30 to 69.
E04C 2/06 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like materialBuilding elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of asbestos cement reinforced
E04C 5/07 - Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
E04B 5/04 - Load-carrying floor structures formed substantially of prefabricated units with beams of concrete or other stone-like material, e.g. asbestos cement
E04B 5/43 - Floor structures of extraordinary designFeatures relating to the elastic stabilityFloor structures specially designed for resting on columns only, e.g. mushroom floors
E04C 5/20 - Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of other material than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires
A tension measuring method installs a reel having a cylindrical coil forming part on a cable to be measured, forms a coil by winding a conductor around the coil forming part, measures a magnetic hysteresis loop of the cable by supplying a current to the coil to generate a magnetic field, and computes a tension of the cable using a parameter determined from the hysteresis loop. A magnetic field sensor and a magnetic flux sensor are provided inside a through hole in the coil forming part, and the cable is positioned inside the through hole. The magnetic field is varied so that the hysteresis loop includes a near-saturation magnetization region, to measure the hysteresis loop using the sensors. The parameter is selected from a magnetic flux or a magnetic flux density, a remanent magnetization, a coercivity, a magnetic permeability, and a hysteresis loss in the near-saturation magnetization region.
G01R 33/14 - Measuring or plotting hysteresis curves
G01L 5/10 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
19.
FIBER-REINFORCED COMPOSITE CABLE WITH TOW, AND ELECTRICAL WIRE
Provided is a cable that can be easily stripped and that comprises a member for preventing floating of twisted wire. In the present invention, an electrical wire core 10 is provided with: one core wire 11 obtained by impregnating a fiber bundle, in which a plurality carbon fibers that are continuous in the length direction are bundled, with resin and curing the fiber bundle; and six side wires 12 that are twisted around the core wire 11. Tow 40, in which a plurality of tow fibers that are continuous in the length direction are aligned so as to be flat and closely packed, is wound in a spiral shape on the surface of the electrical wire core 10 in the opposite direction from the twisting direction of the side wires 12.
06 - Common metals and ores; objects made of metal
09 - Scientific and electric apparatus and instruments
17 - Rubber and plastic; packing and insulating materials
19 - Non-metallic building materials
37 - Construction and mining; installation and repair services
Goods & Services
Wire ropes; wire nets and gauzes. Electric wires and cables. Electrical insulating materials. Plastic building materials; synthetic building materials;
asphalt, and asphalt building or construction materials;
rubber building or construction materials; plaster for
building purposes; lime building or construction materials;
building or construction materials of plaster; cement and
its products. General building construction works; construction and
maintenance services relating to civil engineering; road
paving; steel structure construction works; building
reinforcing; scaffolding, construction services in the
nature of earthworks or construction services using
concrete; machinery installation; electrical installation
services; repair or maintenance of automobiles; repair or
maintenance of elevators [lifts]; repair or maintenance of
computers; repair or maintenance of construction machines
and apparatus; rental of construction machines and
apparatus.
06 - Common metals and ores; objects made of metal
09 - Scientific and electric apparatus and instruments
17 - Rubber and plastic; packing and insulating materials
19 - Non-metallic building materials
37 - Construction and mining; installation and repair services
Goods & Services
(1) Wire ropes; wire nets and gauzes.
(2) Electric wires and cables.
(3) Electrical insulation; insulation for electric mains; electrical insulating material, namely, rubber; insulators for cables.
(4) Plastic building materials, namely, plastic pipe supports; synthetic building materials, namely, plastic pipe supports; asphalt, and asphalt building or construction materials, namely, asphalt roof coatings and asphalt paving compositions; rubber building or construction materials, namely, rubber stairway warning tiles and rubber cove bases; plaster for building purposes; lime building or construction materials namely, hydrated lime for use in building; building or construction materials of plaster, namely, plaster for building purposes; cement and its products, namely, silica cement and Portland cement. (1) General building construction works, namely, building construction services; construction and maintenance services relating to civil structures and buildings, namely, cable laying, installation of elevators, bridge construction services; road paving; construction of buildings with steel structures; building reinforcing; scaffolding; construction services, namely, earthworks services in the nature of excavation; construction services, namely, construction of concrete structures, namely, concrete bridges, ground anchors; machinery installation, namely, installation of construction machinery; installation of electrical systems; electrical installation services in the nature of installation of electrical and generating machinery; repair or maintenance of automobiles; repair or maintenance of elevators [lifts]; repair or maintenance of computers; repair and maintenance of construction machines; rental of machinery for building construction.
06 - Common metals and ores; objects made of metal
09 - Scientific and electric apparatus and instruments
17 - Rubber and plastic; packing and insulating materials
19 - Non-metallic building materials
37 - Construction and mining; installation and repair services
Goods & Services
Wire ropes; wire nets and gauzes Electric wires and cables Electrical insulating materials Plastic building materials, namely, plastic pipe supports; synthetic building materials, namely, plastic pipe supports; asphalt, and asphalt building or construction materials, namely, asphalt roof coatings and asphalt paving compositions; rubber building or construction materials, namely, rubber stairway warning tiles and rubber cove bases; plaster for building purposes; lime building or construction materials; building or construction materials of plaster, namely, plaster for building purposes; cement and its products, namely, silica cement and Portland cement General building construction works, namely, building construction services; construction and maintenance services relating to civil engineering structures and buildings; road paving; steel structure construction works; building reinforcing; scaffolding erection and repair, construction services in the nature of earthworks services being excavating for building construction and building construction services using concrete; machinery installation; electrical installation services in the nature of installation of electrical and generating machinery; repair or maintenance of automobiles; repair or maintenance of elevators; repair or maintenance of computers; repair or maintenance of construction machines and apparatus; rental of construction machines and apparatus
23.
CABLE BODY ANCHORING METAL FITTING, WEDGE ATTACHING/DETACHING JIG, AND PULLING-OUT JIG
This cable body anchoring metal fitting is provided with: a fitting member 11 provided with a cylindrical body through which a cable body 2 is inserted; a first member 12 that is inserted into the cylindrical body and that abuts against the cable body 2; and a second member 13 that is inserted into the cylindrical body and that has a wedge-shaped part, the cable body anchoring metal fitting being configured such that a force for binding the cable body 2 between the first member and the fitting member 11 is generated during fitting between the cylindrical body and the first member 12, and a force for binding the cable body 2 between the first and second members 12, 13 and the fitting member 11 is generated during fitting between the cylindrical body and the second member 13.
F16B 2/14 - Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using wedges
F16G 11/04 - Means for fastening cables or ropes to one another or to other objectsCaps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps of grommet-thimble type
A method for inspecting a coated sealed wire rope 10 used in a bridge, wherein the inspection method has a step for forming an inspection through-hole H1 in the coating of the sealed wire rope 10, a step for increasing or reducing pressure on the inner side of the coating of the sealed wire rope 10 through the inspection through-hole H1, and a step for assessing whether there is penetration damage in the coating of the sealed wire rope 10 according to whether the state of increased or reduced pressure is maintained, the inspection method making it possible to increase the efficiency of operation and to reduce the need for traffic limitation on the bridge for the purpose of an inspection.
E01D 19/16 - Suspension cablesCable clamps for suspension cables
G01M 3/02 - Investigating fluid tightness of structures by using fluid or vacuum
G01M 3/20 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
G01M 3/24 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
G01M 3/26 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
G01M 3/28 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for valves
G01M 3/38 - Investigating fluid tightness of structures by using light
E01D 22/00 - Methods or apparatus for repairing or strengthening existing bridges
25.
SHORT-FIBER-REINFORCED CONCRETE STRUCTURE USING CONTINUOUS-FIBER REINFORCEMENT MATERIAL
[Problem] To provide a concrete structure and a concrete slab having low manufacturing costs and ultra-high durability while taking advantage of the superior properties of a continuous-fiber reinforcement material which does not rust and in which the mechanical deficiencies of continuous-fiber reinforcement materials are compensated by mixing, in concrete, a short-fiber reinforcement material together with a continuous-fiber reinforcement material serving as a main reinforcement material or tendon. [Solution] A concrete structure in which a continuous-fiber reinforcement material is provided as a main reinforcement material or tendon, wherein 0.5% or more of a short-fiber reinforcement material comprising organic fibers is added with respect to the total volume, the continuous-fiber reinforcement material is shaped as a rod or strand, the ratio Lf/Gm of the fiber length Lf of the organic fibers in the short-fiber reinforcement material to the maximum aggregate diameter Gm of the concrete mix is 1.2 to 3.7, and the aspect ratio Lf/De is 30 to 69, where De is the equivalent diameter of the cross-sectional area of the organic fibers when converted into a circle.
C04B 28/02 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
E01D 19/12 - Grating or flooring for bridgesFastening railway sleepers or tracks to bridges
E04B 5/43 - Floor structures of extraordinary designFeatures relating to the elastic stabilityFloor structures specially designed for resting on columns only, e.g. mushroom floors
E04C 2/04 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like materialBuilding elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of asbestos cement
NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITY (Japan)
Inventor
Ishimoto Kazuhiro
Kawamura Yoshihito
Abstract
The present invention provides a novel heat exchange medium as an alternative to lead. A carbon steel wire (1A) that is heated in a heating furnace (11) is allowed to pass through a bath (12A) in which a liquid-phase Mg-Al-Ca alloy (20) prepared by melting an Mg-Al-Ca alloy containing Mg (magnesium), Al (aluminum) and Ca (calcium) as the main component elements is stored. Upon the passing through the bath (12A), the carbon steel wire (1A) that has been heated to, for example, about 950°C in the heating furnace (11) is cooled to about 550°C. The Mg-Al-Ca alloy has neither toxicity nor environmental load.
Provided are: a wire rope with reflective tape (or fluorescent tape) in which a reflective tape 12 (or a fluorescent tape) is wound around the outer periphery of a wire rope 11, and a protection layer 13 formed of an optically transmissive member is disposed on the outer periphery of the reflective tape 12, thereby improving the visibility of the wire rope at night time, for example; and a cable-type traffic barrier in which the wire rope with reflective tape (or fluorescent tape) is used.
An erosion prevention method for preventing fallen trees from being washed away due to landslides has a step of fastening a standing tree T to a plurality of other standing trees T with a wire rope R, and a step of performing the tree fastening step on a plurality of standing trees T present in a landslide prone area in which there is danger of landslides occurring. Thus, the method can: reduce occurrences of trees falling and occurrences of landslides by way of a shared holding effect due to connecting standing trees to each other with a cord; reduce construction cost and construction time; and be quickly applied as a countermeasure in various locations.
Assembly component of compression type anchor clamp, anchor structure of power-transmission line and method of constructing compression type anchor clamp
SUMIDEN TRANSMISSION AND DISTRIBUTION SYSTEM PRODUCTS, LTD. (Japan)
TOKYO ROPE MFG. CO., LTD. (Japan)
Inventor
Nakamura, Mitsuhide
Domoto, Masashi
Hiramatsu, Takashi
Abstract
An assembly component of a compression type anchor clamp includes: a housing tube that houses an end portion of a core portion of a power-transmission line; a core portion compression member, made of steel, that includes a housing hole to house the end portion of the core portion and the housing tube and is to be compressed with the core portion and the housing tube; and a conductive portion compression member, made of pure aluminum or an aluminum alloy, that houses an end portion of a conductive portion of the power-transmission line and the core portion compression member and is to be compressed with the conductive portion and the core portion compression member, wherein the housing tube is constituted by pure aluminum or an aluminum alloy whose Vickers hardness “Hv” is less than or equal to 30, and continuously provided in its cylindrical direction without a gap.
H02G 7/05 - Suspension arrangements or devices for electric cables or lines
F16G 11/02 - Means for fastening cables or ropes to one another or to other objectsCaps or sleeves for fixing on cables or ropes with parts deformable to grip the cable or cablesFastening means which engage a sleeve or the like fixed on the cable
H01R 4/20 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one anotherMeans for effecting or maintaining such contactElectrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
H02G 1/02 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for overhead lines or cables
H02G 7/04 - Arrangements or devices for relieving mechanical tension
Provided is a wedge clamp which is for fastening the end of a steel wire and has improved workability during use. The wedge clamp (1) for holding a steel wire is provided with a first member (12) having a wedge shape, and a second member (11) that is fitted together with the first member (12) by sliding the first member, thereby restricting the steel wire by means of pressure generated by the wedge shape of the first member (12). The wedge clamp is also provided with locking parts (protrusions (124) and anchoring parts (113)) which cause the first member (12) and the second member (11) to engage while enabling the sliding fitting of the first member (12) and the second member (11) one another.
F16G 11/04 - Means for fastening cables or ropes to one another or to other objectsCaps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps of grommet-thimble type
F16B 2/14 - Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using wedges
H02G 7/05 - Suspension arrangements or devices for electric cables or lines
31.
ATTACHMENT FITTING FOR CONTINUOUS FIBER REINFORCED STRANDED WIRE
[Problem] To provide an attachment fitting for a continuous fiber reinforced stranded wire that functions sufficiently as an attachment fitting and that can be manufactured even at construction sites without using a member corresponding to a metal sleeve, thereby reducing manufacturing costs. [Solution] An attachment fitting 1 for a continuous fiber reinforced stranded wire by which a continuous fiber reinforced stranded wire 2 is attached to a building, wherein an untwisted, expanded diameter portion 3 is provided that is expanded to a diameter D2 greater than a diameter D1 of a generic portion 4 of the continuous fiber reinforced stranded wire 2 by way of untwisting a section of the continuous fiber reinforced stranded wire 2 formed by combining a plurality of strands (20, 21), which are bundles of a plurality of continuous fibers, filling the space between the strands in the untwisted section with a time-curable material 5, and curing same.
E04C 5/08 - Members specially adapted to be used in prestressed constructions
E04G 21/12 - Mounting of reinforcing insertsPrestressing
32.
Assembly component of compression joint member, compression joint structure of power-transmission line and method of constructing compression joint member
SUMIDEN TRANSMISSION AND DISTRIBUTION SYSTEM PRODUCTS, LTD. (Japan)
TOKYO ROPE MFG. CO., LTD. (Japan)
Inventor
Nakamura, Mitsuhide
Mano, Akira
Suzuki, Kousuke
Abstract
An assembly component of a compression joint member that connects a power-transmission line to a connection target, includes a core portion compression member including a housing hole that houses an end portion of the core portion, and a compression portion that is compressed for compressing and connecting the end portion of the core portion housed in the housing hole; and a conductive portion compression member that houses an end portion of the conductive portion and the core portion compression member, and is to be compressed with the end portion of the conductive portion and the core portion compression member, wherein the compression portion includes an inclined portion provided at an opening side of the housing hole and whose outer diameter becomes smaller toward the opening side of the housing hole.
A high-strength wire mesh is characterized by being formed by a wire having a tensile strength exceeding 2200 MPa and in that the amount of deflection of the mesh body under the following conditions is 707 mm or greater. Conditions: The length of a cantilever beam that supports the mesh body in the line wire direction in a cantilevered state is 1000 mm, and the amount of displacement in the vertical direction of the free end at this time is the amount of deflection. In this manner, a high-strength wire mesh that is formed by a wire with high tensile strength and that has the ability to adhere to the unevenness of the slope face is provided.
An end fixing structure of a composite wire rod includes a composite wire rod, a wedge body that is formed into a cylindrical shape with an enlarging diameter from a front end portion, wherein an inner wall surface is formed for engaging with the outer surface of the composite wire rod which is copied onto the inner wall surface, and a sleeve provided on an outer peripheral side of the wedge body and having a conical and hollow inner structure, and the wedge body consists of a plurality of divided wedge bodies, facing each other on their divided surfaces with a space therebetween, and the inner wall surface in the divided wedge body is made of microscopic irregularities, thereby shortening a processing time and maintaining a sufficient gripping power over long term.
F16G 11/04 - Means for fastening cables or ropes to one another or to other objectsCaps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps of grommet-thimble type
D07B 1/00 - Constructional features of ropes or cables
A cable (10) includes a cable body (11) that is formed from a plurality of wires (14) that are integrally bundled; and a pair of sockets (12) to which both end portions of the cable body (11) is separately affixed; at least one of the plurality of wires (14) being a fiber-containing wire (16), which is formed by an optical fiber (17) that extends in a cable length direction (D) and that is protected by a protective tube (18); wherein the optical fiber (17) protrudes from the protective tube (18), in the cable length direction, further outside than the socket (12); and each of the pair of sockets (12) is provided with a spool (30) that removably holds the optical fiber (17) and imparts an initial tensile strain to the optical fiber (17).
G01D 5/353 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
E01D 19/16 - Suspension cablesCable clamps for suspension cables
G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
G01L 5/04 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
B63B 21/50 - Anchoring arrangements for special vessels, e.g. for floating drilling platforms or dredgers
B63B 35/44 - Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
In a method for manufacturing a cable, a filling step S5 of filling a tube hole of a socket main body which is formed in a tubular shape and in which first end portions of wire rods are disposed with a mixture obtained by mixing a thermosetting resin into a preliminary mixture obtained by mixing ceramic particles and fly ash in advance is carried out.
SUMIDEN TRANSMISSION AND DISTRIBUTION SYSTEM PRODUCTS, LTD. (Japan)
TOKYO ROPE MFG. CO., LTD. (Japan)
Inventor
Nakamura, Mitsuhide
Domoto, Masashi
Hiramatsu, Takashi
Abstract
Provided is an assembly component of a compressive anchor clamp which anchors, to an anchor object, a transmission line provided with a core wire part formed by twisting a plurality of strands mainly including carbon fibers and with a conductive part formed by twisting a plurality of aluminum strands on the outer circumference of the core wire part, the assembly component comprising: a housing tube in which an end of the core wire part is housed; a steel core wire part compression member that has a housing hole in which the end of the core wire part and the housing tube are housed, and that is compressed integrally with the core wire part and the housing tube; and a pure aluminum or aluminum alloy conductive compression member in which the end of the conductive part and the core wire part compression member are housed and which is compressed integrally with the conductive part and the core wire part compression member, wherein the housing tube is made of pure aluminum or an aluminum alloy having Vickers hardness Hv of 30 or lower, and formed to be continuous without breaks in the circumferential direction thereof.
H02G 7/05 - Suspension arrangements or devices for electric cables or lines
H01R 4/20 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one anotherMeans for effecting or maintaining such contactElectrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
H02G 1/02 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for overhead lines or cables
47.
CABLE AND METHOD FOR INTRODUCING INITIAL TENSILE STRAIN INTO OPTICAL FIBER
A cable (10) is provided with: a cable body (11) comprising a plurality of wires (14) that are integrally bundled; and a pair of sockets (12) that are fixed to the respective ends of the cable body (11), wherein at least one of the plurality of wires (14) is a fiber-containing wire (16) obtained by securely housing in a protective tube (18) an optical fiber (17) extending in a cable length direction (D), and the optical fiber (17) extends out of the protective tube (18) along the cable length direction (D) beyond the sockets (12), and each of the pair of sockets (12) is provided with a spool (30) that detachably holds the optical fiber (17) so as to impart an initial tensile strain to the optical fiber (17).
G01D 5/353 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
E01D 19/16 - Suspension cablesCable clamps for suspension cables
G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
G01L 5/04 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
48.
Rope end-fastening method, rope with end fastener, and end fitting for use in rope end-fastening method
A rope terminal fixing method is provided, which may be used easily at a construction site, causes less shearing load, and may reliably prevent the falling-off of the rope.
The rope terminal fixing method comprises the following steps. A tubular terminal metal fitting which comprises a proximal opening, a distal opening, and a through hole communicating the proximal and distal openings is prepared. A terminal of a rope is inserted through the proximal opening into the through hole, a portion of the terminal of the rope extended from the distal opening is loosened, and a diameter-enlarging member is fixed to a core wire of the rope. Then, the terminal of the rope is brought back into the through hole. A fixed width portion extending in an axial direction of the terminal metal fitting is pressed from the outside in a circumferential direction by swaging, such that a protrusion constraining the rope so as to reduce its diameter is formed in the through hole. The diameter-enlarging member cooperates with an end of the protrusion located on the distal opening side to constrain surrounding wires other than the core wire in a sandwiching manner. A rope with terminal fixing tools, which comprises the terminal fixing tools attached thereto by this method, is also provided.
F16G 11/05 - Means for fastening cables or ropes to one another or to other objectsCaps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps of grommet-thimble type by using conical plugs insertable between the strands
D07B 9/00 - Binding or sealing ends, e.g. to prevent unravelling
F16G 11/02 - Means for fastening cables or ropes to one another or to other objectsCaps or sleeves for fixing on cables or ropes with parts deformable to grip the cable or cablesFastening means which engage a sleeve or the like fixed on the cable
This continuous fiber-reinforced material tensioning device is provided with: a pressing body 50 that presses a sleeve S toward a fixed structure K and has a hollow part 52 in which a wedge body W is movable so as to freely reciprocate along a continuous fiber-reinforced material C; a tubular bracket 21 that is arranged on the side opposite to the sleeve S with respect to the pressing body 50 and has a protruding part on an inner wall face thereof; a columnar rotation jig 30 that is disposed so as to freely reciprocate inside the bracket 21, engages with an end face of the wedge body W, has a spiral key way 33 engaging with a key 23, and applies a rotation force about an axis of the continuous fiber-reinforced material C; and a piston 40 that presses an end face of the rotation jig 30 toward the fixed structure K. Thus, even when the wedge body W to be used has an inner wall face to which an outer face of the continuous fiber-reinforced material C is transferred, and has an engaged part formed therein engaging with the outer face of the continuous fiber-reinforced material C, the wedge body W can be securely anchored to the fixed structure K by moving the wedge body W along the continuous fiber-reinforced material C.
B28B 23/04 - Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material wherein the elements are reinforcing members the elements being stressed
E01D 22/00 - Methods or apparatus for repairing or strengthening existing bridges
E04G 21/12 - Mounting of reinforcing insertsPrestressing
The present invention provides an elevator main rope (2) the service life of which is improved. This elevator main rope (2) comprises: an independent wire rope core (IWRC) that has a core strand (7), a plurality of side strands (8A-8F) disposed around the core strand (7), and a covering resin (9) that covers the core strand (7) and the plurality of side strands (8A-8F); and a plurality of main strands (10A-10J) that are disposed around the IWRC. The plurality of side strands (8A-8F) are disposed at equal intervals on the circumference of an imaginary circle center layer (11) on which each of the centers of the plurality of side strands (8A-8F) is positioned. The percentage of the sum of the gaps (a) between two side strands (8A-8F), from the plurality of side strands (8A-8F), that are adjacent in the circumferential direction of the imaginary circle center layer (11) with respect to the total circumference of the imaginary circle center layer (11) is no less than 8.5%, or the percentage of the gap (b) between each imaginary circumscribed circle of the plurality of side strands (8A-8F) and the imaginary inscribed circle (12) of the plurality of main strands (10A-10J) with respect to the radius of the imaginary inscribed circle (12) of the plurality of main strands (10A-10J) is no less than 3.0%.
D07B 1/04 - Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics with a core of fibres or filaments arranged parallel to the centre line
09 - Scientific and electric apparatus and instruments
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Materials for electricity mains, namely, electrical cables and wires Reinforcing materials for electric wires and cables, namely, carbon fiber stranded wires and carbon fiber composite cables
An end fixing structure of a composite wire rod includes a composite wire rod 20 that is a composite of continuous fiber and resins formed into a stranded wire, a wedge body 30 that is formed into a cylindrical shape with an enlarging diameter from a front end portion which receives tensile force toward a rear end portion as a large diameter side on a fixed side, wherein an inner wall surface 42 is formed for engaging with the outer surface of the composite wire rod 20 which is copied onto the inner wall surface 42, and a sleeve 50 provided on an outer peripheral side of the wedge body 30 and having a conical and hollow inner structure in which a diameter is enlarged toward an rear end portion of a fixed side, and the wedge body 30 consists of a plurality of divided wedge bodies divided in a circumferential direction, facing each other on their divided surfaces with a space therebetween, and the inner wall surface 42 in the divided wedge body 40 is made of microscopic irregularities 42b, thereby shortening a processing time and maintaining a sufficient gripping power over long term.
D07B 9/00 - Binding or sealing ends, e.g. to prevent unravelling
F16G 11/04 - Means for fastening cables or ropes to one another or to other objectsCaps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps of grommet-thimble type
54.
TERMINAL AFFIXING STRUCTURE FOR COMPOSITE STRIATED BODIES
The present invention comprises: a composite striated body 20 that combines continuous fibers by using a resin material and is molded into a twisted wire shape; a wedge 30 formed in a cylindrical shape, having an outer diameter thereof that expands from a tip that receives tensile force to a rear end section on a fixed side, having the outer surface of the composite striated body transferred to inner wall surfaces 42 thereof, and having the inner wall surfaces 42 formed so as to engage with the outer surfaces of the composite striated body 20; and a sleeve 50 provided on the outer circumference side of the wedge 30 and having a conical, hollow inner structure having a diameter that expands towards the rear end section on the fixed side. The wedge 30 comprises a plurality of split wedges 40 split in the circumferential direction and having the split surfaces 43 thereof facing across a gap. The inner wall surfaces 42 of the split wedges 40 are formed having fine unevenness 42b and, as a result, can be machined in a short time and maintain sufficient holding strength over long periods.
D07B 9/00 - Binding or sealing ends, e.g. to prevent unravelling
F16G 11/04 - Means for fastening cables or ropes to one another or to other objectsCaps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps of grommet-thimble type
55.
TERMINAL AFFIXING STRUCTURE FOR COMPOSITE STRIATED BODIES
The present invention comprises: a composite striated body 20 that combines continuous fibers by using a resin material and is molded in a twisted wire shape; a wedge 30 formed in a cylindrical shape, having an outer diameter thereof that expands from a tip that receives tensile force to a rear end section on a fixed side, having the outer surface of the composite striated body transferred to an inner wall surfaces 42 thereof, and having the inner wall surfaces 42 thereof formed so as to engage with the outer surface of the composite striated body 20; and a sleeve 50 provided on the outer circumference side of the wedge 30 and having a conical, hollow inner structure having a diameter that expands towards the rear end section on the fixed side. The wedge 30 comprises a plurality of split wedges 40 split in the circumferential direction and formed such that the split surfaces 43 thereof face across a gap. The inner wall surfaces 42 of the split wedges 40 are formed having fine unevenness 42b and, as a result, can be machined in a short time and maintain sufficient holding strength over long periods.
D07B 9/00 - Binding or sealing ends, e.g. to prevent unravelling
F16G 11/04 - Means for fastening cables or ropes to one another or to other objectsCaps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps of grommet-thimble type
An end fixing structure of a composite wire rod includes a composite wire rod, a wedge body formed in a cylindrical shape, whose outside diameter expands from a tip portion subject to a tensile force toward a back end portion on a fixed side, to whose inner wall surface an outer surface of the composite wire rod is transferred, and in which the inner wall surface engaging with the outer surface of the composite wire rod is formed, and a sleeve provided on an outer circumferential side of the wedge body and having an internal structure of a conical hollow whose diameter expands toward the back end portion on the fixed side, wherein the wedge body is formed from a plurality of divided wedge bodies and the inner wall surface is formed from a fine irregularity.
In this cable production method, a filling step (S5) is performed in which a cylindrical hole in a cylindrically-formed socket main body having one end of a wire material disposed in the cylindrical hole therein is filled with a mixture obtained by subsequently mixing, with a preliminary mixture obtained by preliminarily mixing ceramic particles and fly ash, a thermosetting resin.
A cable (10) is provided with a cable body (11) configured of a plurality of integrally bundled wires (14). At least one of the plurality of wires (14) is a fiber built-in wire (16) comprising an optical fiber (17) extending in a cable length direction (D) protected by a protection pipe (18). Between the optical fiber (17) and the protection pipe (18), a plurality of fixing portions (26) fixing the optical fiber (17) and the protection pipe (18) to each other is disposed at intervals along the cable length direction (D). The cable (10) increases the measurement accuracy with regard to tensile force applied to the cable body (11).
G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
E01D 19/16 - Suspension cablesCable clamps for suspension cables
G01K 11/32 - Measuring temperature based on physical or chemical changes not covered by group , , , or using changes in transmittance, scattering or luminescence in optical fibres
G01L 5/04 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
01 - Chemical and biological materials for industrial, scientific and agricultural use
19 - Non-metallic building materials
Goods & Services
(Based on Use in Commerce) Expansive materials for anchoring, namely, highly expansive material (HEM) in the nature of chemicals for use in wire and cable anchoring in the construction industry (Based on 44(e)) Cement
This power-transmission-line clamp (10) grips an end of a power transmission line provided with: a carbon-fibre core material (30) obtained by shaping wires (31) into a stranded wire; and an aluminium stranded wire (40) which is provided to the outer peripheral side of the carbon-fibre core material (30), and which is formed by twisting aluminium wires together. The power-transmission-line clamp (10) is provided with: wrapping fibres (32) which are wound around the outer peripheral surface of the wires (31), in a direction intersecting the tensile force generated in the wires (31); a cylindrical metal buffer material (50) which is inserted between the carbon-fibre core material (30) and the aluminium stranded wire (40), and which has, formed on the inner peripheral surface thereof, recesses and protrusions corresponding to the wrapping fibres (32); hard particles (60) which are provided to the inner peripheral surface side of the metal buffer material (50), and which include alumina and/or silicon carbide; and a cylindrical aluminium sleeve (20) which is provided to the outer peripheral side of the aluminium stranded wire (40), and which compresses and fixes the aluminium stranded wire (40), the metal buffer material (50), and the carbon-fibre core material (30). The power-transmission-line clamp (10) has a simple configuration, and exhibits sufficient and stable gripping force.
Provided is a rope end-fastening method, which can be used conveniently even at the construction site, with which shear load is not easily generated, and which is capable of reliably preventing rope pull-out. The rope end-fastening method is provided with the following steps: A tubular end fitting comprising a proximal opening, a distal opening and a through hole connecting said openings is prepared. A rope end is inserted from the proximal opening into the through hole, a portion of the rope end extending from the distal opening is unraveled, and a diameter-expanding member is fixed on the core wire of the rope. The rope end is put back in the through hole. By swaging, a fixed width of the end fitting extending in the axial direction is pressed from the outer circumferential direction to form a protruding section inside the through hole that binds the rope so as to reduce the diameter thereof. The diameter-expanding member works together with the end of said protruding section that is located on the distal opening side to bind the surrounding non-core wires so as to clamp same. Also provided is a rope with an end fastener in which an end fastener has been attached by said method.
Provided is a damage detection device which can be used in test objects of various diameter types. This wire rope damage detection device (20) is provided with: a first and second magnetic flux generator (32, 62); first magnetic flux detection elements (45-50) which detect magnetic flux leaking from one portion of the circumferential surface of the wire rope (W); second magnetic flux detection elements (75-80) which are arranged opposing the first magnetic flux detection elements (45-50) and which detect magnetic flux leaking from an area other than the one portion of the circumferential surface of the wire rope (W), with the wire rope (W) arranged between said first magnetic flux detection elements (45-50) and said second magnetic flux detection elements (75-80); and a position adjustment device (65) which supports the first and second magnetic flux detection elements (45-50, 75-80) so as to allow these to change position relative to each other in the radial direction of the wire rope (W).
G01N 27/83 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
63.
HIGH-STRENGTH FIBER COMPOSITE MATERIAL CABLE DAMAGE EVALUATION METHOD AND DAMAGE DETECTION DEVICE
[Problem] To provide a damage evaluation technology that is capable of easily and non-destructively detecting and evaluating damage in a high-strength fiber composite material cable. [Solution] The invention is a damage evaluation method for a high-strength fiber composite material cable in which strands (3, 3) comprising electrically conductive high-strength fiber composite material are twisted together in a state of mutual insulation. Taking neighboring strands (3, 3) as a pair, a value having a correlation to the electrostatic capacity of the strands (3, 3) is measured, and the existence of damage is evaluated on the basis of a comparison result for the measured value.
G01N 27/82 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
