Abstract:
A strip of tire ply stock is reinforced with steel cords wherein the steel cords are constructed of high strength wire filament having at least a tensile strength of −2000×D+4400 MPa where D is the filament diameter in mm. Tires are constructed with the ply stock in the belt and/or carcass.
Abstract:
A strip of tire ply stock is reinforced with steel cords wherein the steel cords are constructed of high strength wire filament having at least a tensile strength of null2000nullDnull4400 MPa where D is the filament diameter in mm. Tires are constructed with the ply stock in the belt and/or carcass.
Abstract:
A metallic cord has (a) a core composed of two filaments either parallel or intertwisted with each other, (b) a single filament surrounding the core and (c) a sheath of nine filaments surrounding the core and single filament. Preferably, the diameter of each filament ranges from about 0.15 to 0.4 mm. The cord may reinforce elastomeric articles such as tires, belts and hoses and preferably is used in a belt ply or carcass ply of a pneumatic tire.
Abstract:
The invention is directed to several embodiments of metallic cord for the reinforcement of tires wherein one or more coaxial layers of metallic filaments are arranged around the metallic core filaments and twisted in the same direction at the same pitch. In one embodiment, the ratio of the diameter of the core filaments to the layer filaments is at least 1.28. In another embodiment, two of the core filaments have a first diameter and the third core filament has a second diameter smaller than the first diameter daimeter. In still another embodiment, two of the core filaments have a first diameter and a third of the core filaments has a second diameter smaller than the first diameter while the coaxial layer filaments have a third diameter equal to the second diameter. In another embodiment, the core has three core filaments twisted about each other and a coaxial layer of eight layer filaments arranged around the core filaments. In yet another embodiment, the core filaments have a first diameter and the layer filaments have a second diameter which is larger than the first diameter.
Abstract:
A tire cord and a tire, wherein the tire cord comprises three inner steel monofilaments (FC) having a smaller diameter (dc) and seven outer steel monofilaments (FB) having a larger diameter (db), both the diameters (dc) and (db) being in the range of 0.15 to 0.28 mm, the inner and outer steel monofilaments being twisted in the same direction but at different pitches, and an average gap of at least 0.03 mm is provided between the adjacent outer steel monofilaments. The tire is provided with the cords as reinforcements, e.g. carcass cords, belt cords and the like.
Abstract:
A reinforcing strip, and method of making same, specifically adapted for use in reinforcing plies in the belt of rubber tires. The strip comprises a number, preferably 4 to 7, of parallel wires, tightly bound together by a wrapping wire or a binder. This strip form allows to combine the advantages of steel strip, i.e. high lateral and low radial stiffness and thinner piles, with those of conventional steel cord, i.e. high tensile strength and fatigure resistance.
Abstract:
A reinforced belt assembly or construction which utilizes a reinforcing material comprised of a reinforcing member portion possessing a high Young's modulus discontinuous throughout the length of the reinforcing material and a carrier member portion extending the length of the reinforcing material. The carrier member portion facilitates transport and winding of the reinforcing material about a forming mandel during manufacture and facilitates cutting of the belt assembly from the cured reinforced sleeve material such that the high Young's modulus member does not emerge from the cut sidewalls of the belt assembly.
Abstract:
Reinforcing elements comprise a plurality of elongated metallic members, with substantially rectangular cross sections, having parallel longitudinal axes and at least one of the wide sides of each being contiguous with a wide side of another of said elongated metallic members. A single wrap member is helically disposed around the elongated metallic members such that each turn of the wrap filament member is spaced apart from the next adjacent turns of the wrap member. Elastomeric articles reinforced with these reinforcing elements are also disclosed.
Abstract:
Reinforcement cable of metal wire for elastomeric conduits are disclosed, containing at least two corded-together strands which each have two or more wires and at least one outerlying of which strands is composed from two or more core wires wrapped by at least one spiral-shaped strand winding wire. Particular embodiments include wrapping with strands; use of three to seven thereof; enveloping the strands with preferably up to four cable winding wires; arranging various of the combination sets of core wires, strands and cables to be of equal pitch, pitch angle and rotary direction, mainly in-phase; and staggering the cores wires to define a reciprocal contact curve parallel thereto.
Abstract:
A double twist twisting apparatus adapted to twist steel wires, comprising a plurality of wire suppliers each having a base pedestal, a main shaft rotatable relative to said pedestal, a first flyer fixed to said shaft, a frame mounted on said first flyer, a wire supply source adapted to remain stationary with respect to said pedestal, even while said flyer rotates, and a plurality of guide rollers mounted on said frame, said wire suppliers each imparting two back-twists to a wire delivered from said wire supply source for each rotation of said first flyer; a back tension capstan for imparting back tension to a group of wires delivered from said wire suppliers; an open-shaped twister having a pair of second flyers being C-shaped and diametrically opposed to each other and supporting a take-up motion between said second flyers via a frame, for imparting a first twist to said group of wires; and a third flyer adapted to be rotated in the same direction and at the same speed as said twister, for imparting a second twist to said group of wires; said third flyer having a twist pitch determining capstan, a wire straightener, a coarse winder, and a slip capstan all supported in said flyer via a frame.