JPH04842B2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a tire skid device.

(Prior Art) In non-metallic anti-skid devices for automobile tires, a reinforcing core material is covered with a non-metallic material such as rubber. When manufacturing this anti-slip device, generally a reinforcing core material is knitted into a net shape, and this is covered with a covering material. However, with this method, the reinforcing core material must be knitted into a net shape, and if the size of each mesh is not appropriate, the press mold will be damaged when placed in the press mold to be covered with the covering material. There is a problem that the anti-slip device does not fit properly into the interior, and it is not easy to manufacture the anti-slip device.

Therefore, in order to solve this problem, we decided to
As shown in Publication No. 49366, instead of knitting the reinforcing core material into a net shape, a string-like reinforcing core material is stretched around the press mold in a net shape, and this is covered with a covering material. Proposed.

However, in the above-mentioned method, the reinforcing core material was simply stretched around the anti-skid device without giving much consideration to the strength in the axial direction or the circumferential direction of the tire.

(Problem to be Solved by the Invention) For this reason, in the above-mentioned conventional devices, the strength of the anti-skid device in the axial direction and the circumferential direction of the tire is not sufficient, and the elongation of the anti-skid device in each of the above directions due to external force is not good enough. There were cases where it was not possible to regulate the situation. In such a case, problems arise in terms of traction, hill-climbing ability, and braking, as well as problems in the fit of the anti-skid device to the tire, and there is a risk that the anti-skid device will fall off in the axial direction of the tire. There were also cases where this occurred.

An object of the present invention is to provide a tire skid device that can solve the above problems.

(Means for Solving the Problems) In order to achieve the above object, the present invention is characterized in that it is a tire slip prevention device that is wrapped around the outer circumferential surface of the tire. A pair of opposing sides of the mesh are arranged in a row in the circumferential direction and an axial direction, and a pair of opposing sides of the mesh is an axial part arranged parallel to the axial direction of the tire, and the other two pairs of opposing sides are:
The sloping part is arranged to be inclined in both the axial direction and the circumferential direction of the tire, and the axial part and the slanted part are the sliding parts of the tire in which the reinforcing core material is covered with a covering material made of a non-metallic material. In the stopper, the reinforcing core material includes: a circumferential reinforcing core material embedded in adjacent inclined parts along the circumferential direction of the tire and extending continuously over the entire circumferential length; It is composed of adjacent axial parts and an axial reinforcing core material buried in the inclined part and folded back from one axial end to the other end, and the axial part has at least two axial reinforcing cores. A core material is embedded, and at least one axial reinforcing core material and one circumferential reinforcing core material are embedded in the circumferential portion.

(Function) According to the present invention, the axial force of the tire acting on the tire anti-slip device is supported by the axial reinforcing core material, and the circumferential force is supported by the circumferential reinforcing core material. Therefore, the anti-skid device has good strength in both the axial direction and the circumferential direction of the tire, and the elongation in each of the directions is well controlled.

(Embodiment) Hereinafter, a first embodiment of the present invention will be described based on the drawings of FIGS. 1 to 4. In FIGS. 3 and 4, 1 is a tire, 2 is a tread portion, and 3 is a shoulder. 4 is a sidewall portion, 5 is a rim, and 6 is a disk.

As shown in FIG. 2, 7 is a belt-shaped anti-slip device that is detachably wrapped around the outer circumferential surface of the tire 1.
A reinforcing core material group 8 as shown in FIG. 1 is covered with a covering material 9 to form a mesh-like structure. In the anti-slip device 7, a central mesh 10 and a pair of side meshes 11 located on both sides of the central mesh 10 are arranged in series in the axial direction of the tire 1, and these meshes 10 and 11 are arranged in a row in the circumferential direction of the tire 1. Many are installed in series.

The center mesh 10 and each side mesh 11 are offset in the circumferential direction of the tire 1, and the side mesh 11 is positioned between adjacent center meshes 10 in the circumferential direction of the tire 1. There is. Each mesh 1
0 and 11 have a hexagonal shape, and a pair of opposing sides of each mesh 10 and 11 is an axial portion 12 parallel to the axial direction of the tire 1, and the other two pairs of opposing sides of each mesh 10 and 11 are The side portion is an inclined portion 13 that is inclined in both the axial direction and the circumferential direction of the tire 1.
Then, each mesh 10, 1 adjacent in the circumferential direction
The axial portions 12 of each of the central meshes 10 are shared, and each sloped portion 13 of the central mesh 10 is shared with a corresponding inner sloped portion 13 of each side mesh 11.

A protruding portion 14 is formed from the outermost corner of each side mesh 11.
are provided in a protruding manner, and connecting portions 15 extending in the axial direction of the tire 1 are formed at both ends of the stopper 7, and both ends of these connecting portions 15 can be freely separated by a pair of connecting fittings 16. By being connected, the anti-slip tool 7 has an annular shape.

The central mesh 10, the inner portion of each side mesh 11, and the central portion of the connecting portion 15 constitute a main body portion 17 located on the tread portion 2 of the tire 1. The outer portion and each side portion of the connecting portion 15 constitute a pair of lateral portions 18 located on the lateral sides of the tire 1, such as the sidewall portion 4.

By the way, the reinforcing core material group 8 includes an axial reinforcing core material 19 shown by a solid line in FIG. 1 and a circumferential reinforcing core material 20 shown by a dotted line in FIG.
9 and 20 each have multiple addresses. Each reinforcing core material 1
9 and 20 are independent string-like fibers made of polymeric synthetic fibers such as nylon, Tetron, Kevlar, natural fibers, steel wires, etc., and are each made of one or more strings. has been done.

In order to make it easier to understand how the axial reinforcing core materials 19 are arranged, one axial reinforcing core material 19 is shown in bold lines in FIG. Each axial reinforcing core material 19 is disposed continuously in the circumferential direction of the tire 1 in a wave shape between both axial ends of the tire 1 in the anti-slip device 7, and is provided in the protruding portion of the side mesh 11. From 14, the outer inclined part 13, the axial part 12, the inclined part 13 of the central mesh 10, the axial part 12, the inner inclined part 13 of the side mesh 11, the axial part 12, the outer inclined part 13, the protruding part They are arranged in the order of 14.
Further, each axial reinforcing core material 19 is offset by one mesh 10, 11 with respect to the circumferential direction of the tire 1. Then, each axial portion 12 of each mesh 10, 11
An axial reinforcing core material 19 is provided in each of the inclined parts 13, and in the axial part 12 of each mesh 10, 11,
Two axial reinforcing core members 19 are provided.

Four circumferential reinforcing core materials 20 are arranged in the axial direction of the tire 1, and are arranged in a wave shape in the circumferential direction of the tire 1, and in each inclined part 13 of each mesh 10, 11, the axial reinforcing core material 20 is arranged in the axial direction of the tire 1. 19 and a circumferential reinforcing core material 20 are both provided.

Each of the reinforcing core materials 19 and 20 forms a horizontally long rectangle within the connecting portion 15 as well.

In addition, each axial reinforcing core material 19 and each circumferential reinforcing core material 20 may be integrated as appropriate, and each reinforcing core material 19, 20 may be divided into a plurality of pieces in the circumferential direction. There is also.

A pair of flexible cables 21 are made of ropes, wires, etc., and are arranged on both sides of the tire 1.
1 is the protruding part 14 of each side mesh 11 and the connecting part 15
is engaged with each side end portion of the connector via connecting fittings 22 and 23, respectively. The ends of each flexible cable 21 are also separably connected to each other by a connector 24,
Each side mesh 11 is tightened radially inward of the tire 1 by the flexible cables 21, so that the anti-slip device 7 is held on the tire 1.

A spike pin 25 is provided at each outermost corner of each central mesh 10.

According to the embodiment configured as described above, when manufacturing the anti-slip tool 7, each axial reinforcing core material 19 and each circumferential reinforcing core material 20 are stretched in a net shape in a press mold. Thereafter, this is covered with the covering material 9, and there is no need to knit the reinforcing core materials 19, 20 into a net shape, so that the non-slip device 7 can be manufactured easily.

In addition, hexagonal meshes 10 and 11 are provided in the main body 17 of the anti-slip device 7 in series in the axial direction and circumferential direction of the tire 1, and two pairs of opposing sides of these meshes 10 and 11 are connected to the tire. Since the sloped portion 13 is inclined both in the axial direction and the circumferential direction of the tire 1, the anti-slip device 7 is strong against slippage in the axial direction of the tire 1, and the meshes 10 and 11 are opposite to each other. Since the pair of side portions are the axial portions 12 parallel to the axial direction of the tire 1, the anti-slip device 7 is sufficiently strong against slippage in the circumferential direction of the tire 1, and has good traction, hill-climbing ability, and There are no problems with braking. Further, since the main body portion 17 is provided with the spike pins 25, the anti-slip device 7 is extremely resistant to slipping in both the axial direction and the circumferential direction of the tire 1.

Furthermore, the reinforcing core material group 8 includes an axial reinforcing core material 19 disposed between both axial ends of the tire 1 in the anti-slip device 7, and a circumferential reinforcing core material disposed in the circumferential direction of the tire 1. 20, two axial reinforcing core materials 19 are provided in the axial portion 12 of each mesh 10, 11, and both the axial reinforcing core material 19 and the circumferential reinforcing core material 20 are provided in the inclined portion 13. are arranged, each of the meshes 10 and 11, that is, the anti-skid device 7, has sufficient strength in both the axial direction and the circumferential direction of the tire 1, and the above-mentioned external forces of the anti-skid device 7 can be prevented. The elongation in the direction can be well controlled, there is no problem in terms of traction force, hill climbing performance, and braking, and the fit of the anti-slip device 7 to the tire 1 can be made good, and the anti-slip device 7
It is also possible to suitably prevent the tire 1 from falling off in the axial direction.

FIG. 5 shows a second embodiment of the present invention.
Each axial reinforcing core material 19 is arranged in a substantially figure-eight shape and is located between each side portion 12, 13 of a pair of corresponding side meshes 11 in the axial direction of the tire 1 and the above-mentioned side meshes 11. It is arranged in the axial direction part 12 of the central mesh 10. In addition, also in FIG. 5, only one axial reinforcing core material 19 is shown by a thick line.

In the embodiment, two axial reinforcing core materials are provided in the axial portion of each mesh, but one axial reinforcing core material may be provided.

Further, in the embodiment, the mesh has a hexagonal shape, but the number of corners of the mesh may be 5 or less, or 7 or more.

(Effects of the Invention) As detailed above, according to the present invention, the anti-skid device can be manufactured easily, and the anti-skid device has sufficient strength in both the axial and circumferential directions of the tire. , the extension of the anti-slip device in each of the above directions due to external force can be well controlled, and there is no problem in terms of traction force, hill climbing performance, and braking, and
The attachment of the anti-slip device to the tire can be made good, and the anti-slip device can be suitably prevented from falling off in the axial direction of the tire. The present invention has the above advantages and is of great practical benefit.

[Brief explanation of drawings]

1 to 4 show the first embodiment of the present invention, FIG. 1 is an explanatory diagram showing the arrangement pattern of the reinforcing core group, FIG. 2 is a plan view of the anti-slip device, and FIG. A side view showing the state in which the anti-skid device is attached to a tire, FIG. 4 is a sectional view taken along the line A-A in FIG. 3, and FIG. 5 is a second view of the present invention.
It is an explanatory view showing an arrangement pattern of a reinforcing core group showing an example. DESCRIPTION OF SYMBOLS 1...Tire, 7...Slipper, 8...Reinforcement core material group, 9...Coating material, 10...Central mesh, 11...
... Side mesh, 12 ... Axial direction part, 13 ... Inclined part, 19 ... Axial direction reinforcing core material, 20 ... Circumferential direction reinforcing core material.

Claims (1)

[Scope of Claims] 1. A tire slip prevention device that is wrapped around the outer circumferential surface of the tire, in which a hexagonal mesh is continuously arranged in the circumferential direction and the axial direction of the tire, and a pair of opposing sides of the mesh are provided. is an axial part arranged parallel to the axial direction of the tire, and the other two pairs of opposing sides are inclined parts arranged at an angle in both the axial direction and the circumferential direction of the tire. , in a tire skid device in which the axial part and the inclined part are formed by covering a reinforcing core material with a covering material made of a non-metallic material, the reinforcing core material has adjacent inclined parts along the circumferential direction of the tire. A circumferential reinforcing core material is embedded in a section and extends continuously over the entire circumferential length, and a circumferential reinforcing core material is embedded in an axial section adjacent to each other along the axial direction of the tire, and a circumferential reinforcing core material is embedded in an inclined section from one axial end to the other end. an axially reinforcing core material that is folded back over the axial direction, at least two axially reinforcing cores are embedded in the axial part, and at least one axially reinforcing core material is embedded in the circumferential part. An anti-slip device for a tire, characterized in that a material and one circumferential reinforcing core material are embedded.