An elastic cord fabric

Abstract

The present invention provides an elastic cord fabric, which includes warp threads and weft threads and is woven by a plurality of the warp threads and a plurality of the weft threads; the warp threads are high-modulus and low-shrinkage high-strength filaments; the warp threads form a plurality of bending waves in the thickness direction, and when stretched, the plurality of the waves of the warp threads change from a bent state to a straight state; when the cord fabric layer woven by the present invention forms a tire and is in motion, when the rubber is straightened and deformed, a plurality of warp threads and weft threads will squeeze the rubber in the weaving gaps from the original woven state until the plurality of warp threads and weft threads woven are tightly pressed against each other and tightened; by designing such a structure, it is possible to avoid a large amount of heat generated by further deformation of the rubber, avoid the rubber losing its elasticity due to a sharp rise in the temperature of the solid tire, enable the solid tire to be applied to a higher-speed driving scenario or a scenario with greater pressure, and at the same time achieve an effective buffering effect.

Description

Technical Field

[0001] The present invention relates to an elastic cord fabric. Background Art

[0002] Tires are mainly made of rubber. In tire manufacturing, cord fabric needs to be bonded to the rubber to enhance its strength and stabilize its size. The warp threads of the cord fabric are arranged closely, and the weft threads are arranged sparsely, resembling a curtain, hence the name cord fabric. The warp threads are also called cord threads and bear the load, while the weft yarns fix the positions of the warp threads. The cord fabric is used as the skeleton of rubber products such as tires, enabling them to withstand huge pressures, impact loads, and strong vibrations, and is an important material affecting the performance and lifespan of tires.

[0003] Solid tires can prevent accidents caused by tire blowouts. However, when the speed is high or the pressure is too great, the tires will deform excessively and be unable to recover the deformation in time, generating a high amount of heat, or continuously generating heat due to frequent compressive deformation and being unable to dissipate heat effectively, resulting in a sharp increase in the tire temperature, causing the rubber to lose its elasticity and affecting the tire lifespan. In severe cases, the tires will crack, affecting safety. Therefore, currently, a cord fabric layer is provided inside solid tires. However, the cord fabric made of the current reinforcing material can only deform within a very small range, serving to bear the pressure and prevent the rubber tire from deforming excessively. When the rubber tire deforms to a certain extent, the cord fabric will be tightened to prevent further rubber deformation, but it cannot achieve effective buffering. Summary of the Invention

[0004] The object of the present invention is to overcome the above defects and provide an elastic cord fabric, enabling the tire to increase the degree of deformation under pressure while ensuring the required strength, thereby improving the comfort of passengers.

[0005] The present invention adopts the following technical solutions:

[0006] An elastic cord fabric, comprising warp threads and weft threads, woven from a plurality of the warp threads and a plurality of the weft threads; the warp threads are high-modulus low-shrinkage strong filaments; the warp threads form a plurality of curved waves in the thickness direction, and when stretched, the plurality of waves of the warp threads change from a curved state to a straight state.

[0007] Preferably, the weft threads are rigid threads; a plurality of the weft threads are woven sparsely with a plurality of warp threads, such that the weft threads are woven at the curved wave portions of a part of the warp threads, and the weft threads are not woven at the curved wave portions of another part of the warp threads; the warp threads forming the waves are partially interwoven with the weft threads, forming an incomplete restraint and being able to elongate.

[0008] Preferably, the weft threads are divided into rigid threads and rubber threads; a plurality of the weft threads are woven with a plurality of warp threads, and the rigid threads and the rubber threads are distributed alternately.

[0009] Preferably, the weft is a core wire with a rubber layer wrapped around the outside and a core filament inside; the core filament is a high-modulus low-shrinkage filament.

[0010] Preferably, the core filament is a glass fiber filament, or a basalt fiber filament, or a carbon fiber, or an aramid fiber, or a steel fiber filament, or a steel wire, or a copper alloy wire, or a polyester filament, or a nylon filament.

[0011] Preferably, the weft is a rubber thread; after the warp threads forming waves are interwoven with the rubber thread weft, it has elastic restraint, can elongate, and after the dipping process and being placed in the tire, the rubber thread is mixed with the tire rubber body as a whole.

[0012] Preferably, the high-strength filament is a single filament with a diameter of 0.05 - 0.5 mm, or a multi-strand wire twisted from several single filaments with a diameter of 0.05 - 0.5 mm, or a filament bundle formed by several single filaments with a diameter of 0.006 - 0.1 mm.

[0013] Preferably, the high-strength filament is a glass fiber filament, or a basalt fiber filament, or a carbon fiber, or an aramid fiber, or a steel fiber filament, or a steel wire, or a copper alloy wire, or a polyester filament, or a nylon filament.

[0014] The beneficial effects of the present invention are as follows: The cord fabric layer woven into a tire according to the present invention, when in use, when the rubber is straightened and deformed, the high-strength filaments will squeeze the rubber in the weaving gaps from the original woven state. Among several warp threads and weft threads approaching each other, there are rubber filling bodies between several warp threads and weft threads, which can also play a further buffering role until several woven warp threads and weft threads are tightly pressed against each other and tightened; by designing this structure, it is possible to avoid a large amount of heat generated by further deformation of the rubber, prevent the temperature of the solid tire from rising sharply, resulting in the loss of elasticity of the rubber, enable the solid tire to be used in a higher-speed driving scenario or a scenario with greater pressure, and at the same time achieve an effective buffering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of Embodiment 1 of the present invention.

[0016] Figure 2 It is a schematic diagram of Embodiment 2 of the present invention.

[0017] Figure 3 It is a schematic diagram of Embodiment 3 of the present invention.

[0018] Figure 4 It is a schematic diagram of Embodiment 4 of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] In order to make the objectives and technical solutions of the present invention clearer, the present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] An elastic cord fabric, comprising warp threads 1 and weft threads 2, is woven by a plurality of the warp threads 1 and a plurality of the weft threads 2; the warp threads 1 are high-modulus and low-shrinkage high-strength filaments; a plurality of curved waves 11 are formed by the warp threads 1 in the thickness direction, and when stretched, the plurality of waves 11 of the warp threads change from a curved state to a straightened state.

[0021] Example 1:

[0022] Preferably, as Figure 1 shown, the weft threads 2 are rigid threads; a plurality of the weft threads 2 are sparsely woven with a plurality of warp threads 1, so that the weft threads 2 are woven at the curved waves of a part of the warp threads, and the weft threads are not woven at the curved waves 11 of the other part of the warp threads.

[0023] Example 2:

[0024] Preferably, as Figure 2 shown, the weft threads 2 are divided into rigid threads 21 and rubber threads 22; a plurality of the weft threads 2 are woven with a plurality of warp threads 1, and the rigid threads 21 and the rubber threads 22 are alternately distributed.

[0025] Example 3:

[0026] Preferably, as Figure 3 shown, the weft threads 2 are core threads with a rubber layer 23 wrapped outside and a core wire 24 inside; the core wire 24 is a high-modulus and low-shrinkage filament.

[0027] Preferably, the core wire 24 is a glass fiber filament, or a basalt fiber filament, or a carbon fiber, or an aramid fiber, or a steel fiber filament, or a steel wire, or a copper alloy wire, or a polyester filament, or a nylon filament.

[0028] Example 4:

[0029] Preferably, as Figure 4 shown, the weft threads 2 are rubber threads.

[0030] Preferably, the high-strength filament is a single filament of 0.05 - 0.5 mm, or a multi-strand wire twisted by a plurality of single filaments of 0.05 - 0.5 mm, or a filament bundle formed by a plurality of single filaments of 0.006 - 0.1 mm.

[0031] Preferably, the high-strength filament is a glass fiber filament, or a basalt fiber filament, or a carbon fiber, or an aramid fiber, or a steel fiber filament, or a steel wire, or a copper alloy wire, or a polyester filament, or a nylon filament.

[0032] In the description of the invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", "front end", "back end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0033] In the description of the invention, it should be noted that unless otherwise clearly specified and defined, terms such as "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The components adopted in the present invention are all common standard components or components known to those skilled in the art. Their structures and principles can all be learned by those skilled in the art through technical manuals or through conventional experimental methods. For example, the weaving method of the warp and weft of the cord fabric, the dipping process, etc. are not elaborated in the present invention.

[0035] The above is only a preferred embodiment of the present invention, and does not impose any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the present invention.

Claims

1. An elastic cord fabric for solid tires, comprising warp threads and weft threads, and being woven from a plurality of said warp threads and a plurality of said weft threads; Characterized in that: The warp threads are high-modulus and low-shrinkage high-strength filaments; The warp threads form a plurality of curved waves in the thickness direction, and when stretched, the plurality of said waves of the warp threads change from a curved state to a straight state; The weft threads form an incomplete restraint or an elastic restraint on the warp threads; The weft threads are divided into rigid threads and rubber threads; A plurality of said weft threads and a plurality of warp threads are woven, and the rigid threads and the rubber threads are distributed alternately.

2. An elastic cord fabric for solid tires according to claim 1, Characterized in that: The high-strength filaments are single filaments of 0.05 - 0.5 mm, or multi-strand threads twisted from a plurality of single filaments of 0.05 - 0.5 mm, or filament bundles formed by a plurality of single filaments of 0.006 - 0.1 mm.

3. An elastic cord fabric for solid tires according to claim 1, Characterized in that: The high-strength filaments are glass fiber filaments, or basalt fiber filaments, or carbon fibers, or aramid fibers, or steel wires, or copper alloy wires, or polyester filaments, or nylon filaments.

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