Abstract:
A wire rope for elevator systems used to hoist, compensate, and govern an elevator car. The wire rope may include six to ten outer steel strands surrounding a central braided polyester core. The wire rope may include six to ten outer steel strands and six to ten inner steel strands surrounding a central braided polyester core. The braided polyester core may include 8-24 single- or double-braided outer strands surrounding a polyester core center that may include parallel fibers, twisted fibers, twisted strands, single-braided strands, or double-braided strands.
Abstract:
A hybrid rope (40) or a hybrid strand (50) comprising a core element (42, 52), a first (44, 54) and a second (46, 56) metallic closed layer surrounding said core element (42, 52). The core element (42, 52) includes a bundle of synthetic yarns. The first metallic closed layer (44, 54) includes a plurality of first strands of wires helically twisted together with the core element (42, 52) in a first direction. The second metallic closed layer (46, 56) includes a plurality of second wires or strands helically twisted together with said core element (42, 52) and said first metallic closed layer (44, 54) in a second direction. The cross-sectional area of the core element (42, 52) is larger than the total cross-sectional area of the first (44, 54) and second (46, 56) metallic closed layers. A corresponding method of producing such a hybrid rope or hybrid strand is also disclosed.
Abstract:
Cable structures of security systems may include multiple subassemblies having different cut-resistant characteristics. One system includes, inter alia, a portable article, a support, and a length of a cable assembly extending between a first cable end coupled to the portable article and a second cable end coupled to the support, where the cable assembly includes a first cable subassembly extending along at least a portion of the length of the cable assembly, and a second cable subassembly extending along at least the portion of the length of the cable assembly and adjacent to the first cable subassembly, and where the first cable subassembly includes a first cut resistant characteristic and the second cable subassembly includes a second cut resistant characteristic that is different than the first cut resistant characteristic.
Abstract:
A method for producing a strand or cable, in which fibers and/or wires are twisted at a twisting point to form the strand or cable. The fibers and/or wires are coated with a liquefied matrix material before and/or at the twisting point and are embedded in the matrix material during twisting. The fibers and/or wires are immersed in the matrix material before and/or at the twisting point and the formed strand or the formed cable is cooled after the twisting in order for the matrix material to solidify, preferably by air or in a cooling liquid, for example water.
Abstract:
The invention provides a composite rope (10, 20) and mesh net (50) made therefrom. The composite rope (10, 20) comprises a plurality of outer fibre strands (14, 24) twisted or braided around an inner elongate core (12, 22) so as to provide the rope (10, 20) with increased durability. The inner elongate core (12, 22) extends at least partially in a helical configuration, and may comprise an expanded metal wire core having a helical configuration, alternatively a number of steel or synthetic elongate strands or filaments (26) wound to form a twisted cable in which each strand or filament (26) has a helical configuration. The mesh net (50) comprises a number of lengths of rope (52) knotted together at regular spaced intervals, with the net (50) being stretched and heat set during manufacture, and wherein the mesh net (50) includes at least some lengths of composite rope (10, 20) in accordance with the invention. The invention further provides for methods of using the mesh net (50).
Abstract:
The present invention is to provide a hybrid core rope which does not require maintenance or a hybrid core rope capable of reducing a maintenance task. The hybrid core rope includes a resin solid core in which a plurality of spiral grooves is formed in the longitudinal direction on an outer peripheral surface thereof, a plurality of fiber bundles respectively spirally wound around the outer peripheral surface of the resin solid core along the plurality of spiral grooves, the fiber bundles having thickness to fill the spiral grooves, and a plurality of steel strands spirally wound around the outer peripheral surface of the resin solid core around which the fiber bundles are wound. The fiber bundles and the strands are respectively wound so as to have angles which are not parallel to each other.
Abstract:
In an elevator rope, a plurality of steel outer layer strands are twisted together on an outer circumference of an inner layer rope. The inner layer rope has: a fiber core; a plurality of steel inner layer strands that are twisted together directly onto an outer circumference of the fiber core; and a resin inner layer rope coating body that is coated onto the outer circumference. A diameter of the inner layer strands is smaller than a diameter of the outer layer strands. The inner layer strands are greater in number than the outer layer strands.
Abstract:
A combined cable comprising a core cable of high-strength synthetic fibers, which take the form of a twisted bundle of monofilaments or a plurality of twisted bundles of monofilaments, and comprising an outer layer of steel wire strands, is characterized in that the bundle or bundles of monofilaments is or are stretched, with a reduction in diameter, and held in this state by a sheathing, in particular a braided sheathing. The extension under strain of the core cable under load is thereby reduced, so that the load distribution between the cross section of steel and the cross section of synthetic material of the cable improves.
Abstract:
A reinforcing cord of the present invention is a reinforcing cord (10) for rubber reinforcement including a fiber core (11) and a plurality of strands (12) disposed around the fiber core (11). The fiber core (11) is formed of one or a plurality of highly elastic fibers having a tensile elastic modulus of at least 100 GPa. Each of the plurality of strands (12) is formed of a plurality of glass fibers that are primarily twisted, and the plurality of strands (12) are finally twisted to be disposed around the fiber core (11). The direction of the final twist of the plurality of strands is opposite to the direction of the primary twist in each of the plurality of strands (12). The number of final twists of the plurality of strands (12) is 1.0 to 3.0 times/25 mm, and a ratio of the number of primary twists in each of the plurality of strands (12) to the number of final twists of the plurality of strands (12) (the number of primary twists/the number of final twists) is in a range of 1.5 to 2.5.
Abstract:
A composite cord is provided which is simple in manufacture, highly productive, less costly, and improved in rubber penetration. The composite cord has a 1×n construction (n is an integer from 3 to 12) with 2 to 11 metallic filaments and 1 to 5 polymer fibers having a melting point of 50 to 200 degrees twisted together. The pneumatic tire employing this composite cord for its reinforcing element is restricted in rust formation and improved in strength retention.