Abstract:
A steel cord (10) adapted for the reinforcement of rubber products, the steel cord (10) comprises a core (12) and three or more outer strands (14) twisted around the core (12) in a cord twisting direction. The outer strands (14) comprise outer filaments (16) twisted in a strand twisting direction which is the same as the cord twisting direction. The outer strands (14) have a wavy form which makes spaces between the core (12) and the outer strands. The steel cord (10) has improvements on elongation at break and impact resistance capacity.
Abstract:
A wire rope for a running wire, has a core rope, a plurality of side strands arranged at an outer periphery of the core rope to be twisted together therewith, and a resin spacer interposed between the side strands, the core rope including a core rope main body composed of a plurality of wires and a resin coating layer outwardly surrounding the core rope main body so that the resin coating layer separates the core rope main body from the side strands, each of the side strands being composed of a plurality of further wires, and the resin spacer being provided with contour corresponding to an outer layer of the further wires of the side strands and extending between the wires of the outer layer of the side strands.
Abstract:
A hybrid layered cable for use in tire reinforcement includes a non-metallic internal layer and an unsaturated external layer including 3-12 strands. Each strand is at least partly metallic and is helically wound around the internal layer. Each strand includes at least 3 filaments wound helically together. The cable has a relative elongation at break, measured in tension in accordance with the standard ISO 6892 of 1984, which is higher than 7%.
Abstract:
A steel cord that is especially useful for reinforcing a crown portion of a tire is provided. In particular, a steel cord free from manufacturing problems existed in the conventional art and allowing for stable quality and good production efficiency is provided, and a rubber-steel cord composite and a tire that are equipped with the same are provided.A steel cord has a multiple-twist structure including N (N=2 to 8) strands 2 that are twisted together, each strand 2 having a plurality of wires 1 that are twisted together. When the diameter of each strand is denoted by d (mm), the diameter of a circle circumscribing the cord is denoted by D (mm), and the twisting pitch of the cord is denoted by P (mm), εc defined by the following expression, εc=√(−b/2+√(b2/4−c))−1 (where b denotes −1+π2(−4R2+d2)/P2, c denotes π2d2k(4π2R2+P2)/P4, R denotes (D−d)/2, and k denotes tan2(π/2−π/N)), satisfies εc≧0.005.
Abstract:
A rope comprising a plurality of bundle groups, each of said bundle groups having a periphery and comprising a plurality of high strength fibers, at least one low coefficient of friction fiber disposed around at least a portion of the periphery of at least one of the bundle groups.
Abstract:
The invention improves rubber permeability while making a cord diameter compact. A metal cord is constituted by a layered structure having a core comprising totally 6 to 12 filaments sectioned into 1 to 4 filament bundles, and a sheath comprising 8 to 15 filaments arranged around the core. Each of the filament bundles includes a waved filament modeled in a two-dimensional wave shape and a non-waved filament, in a state before being bundled. The core makes the wave of the waved filament three-dimensional within the core by applying torsion to each of the filament bundles.
Abstract:
A pneumatic tire comprises a cord-reinforced layer such as carcass, belt, bead reinforcing layer which is made of metallic cords, each metallic cord is made up of six to twelve metallic filaments whose diameter is in a range of from 0.15 to 0.45 mm, the metallic filaments include waved filaments and unwaved filaments, each waved filament is two-dimensionally waved at a wave pitch and wave height before twisted, the wave pitch is in a range of from 5.0 to 35.0 times the diameter of the filament, and the wave height is in a range of from 0.2 to 4.0 times the diameter of the filament, and the metallic filaments are twisted together into the cord at a twist pitch of from 10 to 40 mm so that the two-dimensionally waved filaments are each subjected to a certain rotation around its axial.
Abstract:
A rope comprising a plurality of wires (2, 3, 4) made of a steel wire being twisted together; at least the wires which are arranged in such a manner as to be disposed on an outer surface of the rope (1) being made of a plated steel wire wherein a corrosion resistance is superior; at least said wires which are located in a center of the rope not being made of the wire wherein the corrosion resistance is superior.
Abstract:
The flattened strand rope of the invention comprises wedge-shaped strands, each made up of wires wound on a core. At least a portion of the strand wires are fashioned as twisted wire groups in which the wires are sector-shaped and in contact with each other over helical surfaces. With such a structural embodiment of the flattened strand wire, use can be made of thin and, consequently, stronger and more flexible wires, thereby increasing the strength and flexibility of the rope and making for the use of the rope in the various branches of industry, including lifting mechanisms with large or small drum diameters.
Abstract:
A fishing trawl net includes electrical shocking cables and other electrical instrumentation. The net is towed by a high tensile strength cable which includes an electrically conductive core.