JPS62194913A - Structure of reinforcing core member in tire anti-slip means - Google Patents

Abstract

PURPOSE:To enhance the mountability and anti-slip ability of a nonmetallic tire anti- slip means, by constituting a reinforcing core member for the anti-slip means with tire-radial reinforcing members and tire-circumferential reinforcing members, and by arranging both core members along the common sides of at least the side meshes and the center meshes. CONSTITUTION:A reinforcing core member 8 is composed of axial reinforcing core members 19 shown by the solid line and circumferential reinforcing core members 20 shown by the chain line, the reinforcing core members 19, 20 being formed in a strap-like shape, independently from each other with nylon or the like. Further, each of the axial reinforcing core members is composed of a projecting section 14 of a side mesh 11, an outer inclined section 13, an axial section 12 and an inner inclined section 13 of the side mesh 11, an axial section 12, an outer inclined section 13 and a projection 14 which are successively arranged in the mentioned order. Further, circumferential reinforcing members 20 are arranged in corrugation, circumferentially of the meshes 10, 11 so that they coexist with the axial reinforcing members 19 along the inclined section 13. With this arrangement, it is possible to ensure the traction, gradability and braking ability and to enhance the mountability.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to the structure of a reinforcing core material in a tire anti-slip 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. 6, 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 only stretched appropriately without much consideration given to the strength of the tire in the axial direction and the circumferential direction in the anti-skid device.

(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. In some cases, it was not possible to regulate the And in such a case,
Problems arise in terms of traction, climbing performance, and braking, and problems also occur 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.

An object of the present invention is to provide a structure of a reinforcing core material in a tire anti-slip device that can solve the above-mentioned problems.

(Means for solving the problems) In order to achieve the above object, the features of the present invention are as follows:
Reinforcement core material group 8 consisting of a plurality of string-shaped reinforcement core materials 19 and 20
is covered with a covering material 9 made of a non-metallic material, and the meshes 10 and 11 are continuous in the axial and circumferential directions of the tire 1. The tire 1 has an axial reinforcing core material 19 disposed between both axial ends of the tire 1, and a circumferential reinforcing core material 20 disposed substantially inward of the tire 1. Each side 12
．． 13, at least one of an axial reinforcing core material 19 and a circumferential reinforcing core material 20 is disposed, and each mesh 10.11
Both the axial reinforcing core material 19 and the circumferential reinforcing core material 20 are disposed on at least one side portion 13 of.

(Function) According to the present invention, the anti-slip device 7 has sufficient strength in both the axial direction and the circumferential direction of the tire 1, and can satisfactorily restrict the elongation of the anti-slip device 7 in each of the above directions due to external force. can.

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

As shown in FIG. 2, reference numeral 7 denotes a belt-shaped anti-slip device that is detachably wound around the outer peripheral surface of the tire 1. A reinforcing core material group 8 as shown in FIG. It is covered with a mesh-like structure.

The anti-slip device 7 includes a central mesh 10 and a pair of side meshes 11 located on both sides of the central mesh 10 in the axial direction of the tire l.
and a large number of these meshes 10 and 11 are arranged in a row in the circumferential direction of the tire 1.

The center mesh 10 and each side mesh 11 are offset with respect to the circumferential direction of the tire 1, and with respect to the circumferential direction of the tire 1,
Side meshes 11 are positioned between adjacent central meshes 10. Each mesh 10.11 has a hexagonal shape, and a pair of opposing sides of each mesh 10.11 is an axial portion 12 parallel to the axial direction of the tire 1, and the other two opposing sides of each mesh 10.11 The pair of side portions is an inclined portion 13 that is inclined in both the axial direction and the circumferential direction of the tire 1. Then, the axial portion 1 of each mesh tO, U adjacent in the circumferential direction
2 are made common, and each inclined part 13 of the central mesh 10 is made common to the corresponding inner inclined part 13 of each side mesh 11.

A protruding portion 14 is provided protruding from the outermost corner of each side mesh 11, and connecting portions 15 extending in the axial direction of the tire 1 are formed at both ends of the anti-slip device 7. Part 15
Both end portions of the anti-slip device 7 are separably connected by a pair of connecting fittings 16, so that the anti-slip device 7 has an annular shape.

The central mesh 10, the inner portions of the side meshes 11, and the center portions of the connecting portions 15 constitute a main body 17 located on the tread portion 2 of the tire 1. By the outer 111 portion and each side of the connecting portion 15,
A pair of side portions 18, such as the sidewall portion 4, are configured to be located on the side sides of the tire 1.

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 2 shown by a dotted line in FIG.
0, and each of these reinforcing core materials 19 and 20 has a plurality of addresses. Each of the reinforcing core materials 19 and 20 is an independent string-like material made of polymeric synthetic fibers such as nylon, Tetron, Kepler, natural fibers, steel wires, etc. It is made up of strings.

In order to make it easier to understand how the axial reinforcing core members 19 are arranged, one axial reinforcing core member 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. 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 1
3. The protruding portions 14 are arranged in this order. Further, each axial reinforcing core material 19 has one mesh 1 in the circumferential direction of the tire 1.
The number of molecules is 0.111. And each mesh 10.1
An axial reinforcing core material 19 is disposed in each axial portion 12 and each inclined portion 13 of the mesh 10.1, and the axial portion 12 of each mesh 10.
In this case, 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 portion 13 of each mesh 10.11, the axial reinforcing core material 20 19
and a circumferential reinforcing core material 20 are provided.

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

In addition, each axial direction reinforcing core material 19 comrades, each circumferential direction reinforcing core material 20
The reinforcing core members 19, 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.

A pair of flexible cables 21 are made of lobes, wires, etc., and are arranged on both sides of the tire 10. The end portions are engaged with each other 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, and each side mesh 11 is tightened inward in the radial direction of the tire 1 by the flexible cable 21. A stop 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 device 7, each axial reinforcing core material 19 and each circumferential reinforcing core material 20 are stretched in a net shape in a press mold. After that, this is covered with a covering material 9, and a reinforcing core material 19.20
Since there is no need to knit it into a net shape, the non-slip device 7 can be manufactured easily.

In addition, the main body 17 of the anti-slip device 7 has a hexagonal mesh 10°1.
1 are arranged in series in the axial direction and the circumferential direction of the tire 1, and two pairs of opposing sides of these meshes 10 and 11 are inclined parts 13 that are inclined with respect to both the axial direction and the circumferential direction of the tire 1 Therefore, the anti-slip device 7 is strong against slippage in the axial direction of the tire 1, and the mesh 10. Since the pair of opposing sides of l'l are the axial part 12 parallel to the axial direction of the tire 1, the anti-slip device 7 is sufficiently strong against sliding in the circumferential direction of the tire 1. There are no problems in terms of traction, pitchability, and braking. Furthermore, since the main body portion 17 is provided with spikes 725, the anti-slip device 7 is extremely resistant to slipping in both the axial and circumferential directions of the tire.

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 members 19 are arranged in the axial part 12 of each mesh 10.11, and two axial reinforcing core members 19 are arranged in the inclined part 13.
and the circumferential reinforcing core material 20, each mesh 10, 11, that is, the anti-slip device 7 has sufficient strength in both the axial direction and the circumferential direction of the tire 1.
The extension of the anti-skid device 7 in each of the above directions due to external force can be well controlled, there is no problem in terms of traction force, climbing performance, and braking, and the attachment of the anti-skid device 7 to the tire 1 is also good. It is also possible to suitably prevent the slip stopper 7 from falling off in the axial direction of the tire 1.

FIG. 5 shows a second embodiment of the present invention, in which each axial reinforcing core material 19 is arranged in a substantially figure-eight shape, and a pair of corresponding side meshes are arranged in the axial direction of the tire 1. 11 each side 1
2.13 and the center mesh 1 located between the above two survey portion meshes 11
0 in the axial direction portion 12.

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-skid device in each of the above directions due to external force can be well controlled, there is no problem in terms of traction force, climbing performance, and braking, and the anti-skid device can also be attached to the tire well, It is also possible to suitably prevent the slipper 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 the tire, Fig. 4 is a cross-sectional view taken along the line A-A in Fig.
The figure is an explanatory diagram showing an arrangement pattern of a group of reinforcing core materials showing a second embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Tire, 7...Slipper, 8...Reinforcement core material group, 9...Coating material, 10...Central mesh, 11...
Side mesh, 12... Axial part, 13... Inclined part, 1
9... Axial reinforcing core material, 20... Circumferential reinforcing core material.

Claims (1)

[Claims] (1) A reinforcing core material group 8 consisting of a plurality of string-like reinforcing core materials 19 and 20 is covered with a covering material 9 made of a non-metallic material, and the meshes 10 and 11 are formed in the axial and circumferential directions of the tire 1. In the continuous tire skid device, the reinforcing core material group 8 includes an axial reinforcing core material 19 disposed between both axial ends of the tire 1 in the non-slip device, and a reinforcing core material group 8 in the substantially circumferential direction of the tire 1. At least one of the axial reinforcing core material 19 and the circumferential reinforcing core material 20 is provided on each side 12 and 13 of each rope 10 and 11. In addition, each mesh 10
, 11, the axial reinforcing core material 1 is attached to at least one side 13 of the
A structure of a reinforcing core material in a tire skid device, characterized in that both a reinforcing core material 9 and a circumferential reinforcing core material 20 are provided.