JPH0356088Y2 - - Google Patents

Description

[Detailed explanation of the idea]

(Field of Industrial Application) The present invention relates to a tire anti-slip device. (Prior Art) As a non-slip device wrapped around the outer circumference of an automobile tire, for example, Japanese Patent Application No. 60-263286 (Japanese Unexamined Patent Publication No. 62-263)
As shown in Japanese Patent Publication No. 122808), there is a reinforcing core material covered with a rubber material so that the whole is formed into a mesh shape, and spikes are inserted into the rubber material at necessary locations. (Problems to be solved by the invention) In the above method, the entire rubber material is made of the same material, and with emphasis on the performance of the anti-skid device on ice and snow, a rubber material with low hardness is used. I was using it. For this reason, when an external force is applied to the spikes from the road surface while driving, the rubber material around the spikes deforms greatly, making it easy for the spikes to move. There was a problem that it was easy to fall off. 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 solve the above problems, the means adopted by the present invention is to wrap the tire around the outer circumference of the tire, and the rubber material is formed into a mesh shape. In the case where a spike device is inserted into the material, a high hardness rubber material portion that is harder than the anti-tire side portion of the rubber material is placed on the tire side portion of the rubber material that comes into contact with the spike device. The point is that it is provided in a stacked state or in a buried state. (Function) A high hardness rubber material part is provided in a laminated or buried state on the tire side part of the rubber material and in contact with the spike tool, and supports the spike tool more firmly than the part of the rubber material on the opposite tire side. and while driving,
Even if an external force is applied to the spikes from the road surface, the spikes will not move significantly, and the spikes will not easily fall off from the rubber material. (Embodiment) Hereinafter, a first embodiment of the present invention will be explained based on the drawings of FIGS. 1 to 5. In FIGS. It has a shoulder portion 3, both sidewall portions 4, and both bead portions 5, and has a toroidal cross section, and both bead portions 5 are fitted into bead seats of a rim 6. Note that 7 indicates a disk. In FIGS. 2 to 4, reference numeral 8 denotes a band-shaped anti-slip device in the unfolded state, which is located on the main body portion 9 located on the tread portion 2, on both shoulder portions 3, and on both side wall portions 4. It has both side edges 10 and 11. As shown in FIG. 1 and FIG.
13b, it has a mesh-like structure. The core material 12 is made of synthetic fiber or natural fiber such as polyester, nylon, or rayon. Note that it is desirable that the core material 12 has no (non-stretchability) or low stretchability. The first rubber material 13a is located on the tire side portion of the antiskid device 8, and the second rubber material 13b is located on the anti-tire side portion of the antiskid device 8, that is, the portion on the opposite side from the tire side portion. . The first rubber material 13a is made of a material with a large coefficient of friction and excellent adhesion to the tire 1, so that the anti-slip device 8 is difficult to slip relative to the tire 1. Further, the hardness of the first rubber material 13a is equal to that of the second rubber material 13.
Therefore, even if the second rubber material 13b moves due to contact with the road surface, the first rubber material 13a is prevented from following the second rubber material 13b. This further prevents the anti-skid device 8 from slipping relative to the tire 1. The first rubber material 13a is, for example, composed mainly of natural rubber or cyanide-based synthetic rubber, and is based on the JIS standard.
Made of material with A hardness of 65 degrees or higher. The second rubber material 13b is made of a material with low hardness, and is said to have excellent on-ice performance such as slip resistance and traction performance, as well as excellent durability and abrasion resistance. . Note that the lower the hardness of the second rubber material 13b, the better the performance on ice, but if the hardness is too low, problems will arise in durability, abrasion resistance, etc. Hardness is determined. The second rubber material 13b is, for example, composed mainly of natural rubber or diene-based synthetic rubber, and is
It is made of material with an A hardness of 55 to 70 degrees. In the main body part 9, axial parts 14 parallel to the axial direction of the tire 1 are arranged in parallel at predetermined intervals in the circumferential direction of the tire 1 (band longitudinal direction). Further, in a portion extending from the main body part 9 to the side edge part 10, an inclined part 15 which is inclined with respect to the axial direction and the circumferential direction of the tire 1 is connected to the axial part 14. In the portion 9, a mesh 16 having a substantially hexagonal shape is provided on the tire 1.
are arranged in succession in the circumferential direction. Furthermore, tires 1 are mounted on both side edges 10 and 11, respectively.
The axial parts 17 and 18 parallel to the axial direction of the tire 1
are arranged in parallel at predetermined intervals in the circumferential direction. or,
In a portion extending from the side edge portion 10 to the side edge portion 11, an inclined portion 19 that is inclined in both the axial direction and the circumferential direction of the tire 1 is formed in a continuous manner with the axial portion 17. Further, on the outer side of the side edge portion 11, a tire 1 is provided.
An inclined portion 20 that is inclined with respect to the axial direction and the circumferential direction of the
are connected to the axial portion 18. Thereby, meshes 21 and 22 each having a substantially hexagonal shape are provided in succession in the circumferential direction of the tire 1 on each of the side edges 10 and 11. Reference numeral 23 denotes connection parts formed at both ends of the anti-slip tool 8, which have connection holes, and when the connection fittings 24 are removably engaged with these connection holes, the two connection parts 23 are separated. freely connected. In addition, each part 14, 15, 17 to 20 of the anti-slip tool 8,
The cross-sectional shape of 23 is approximately trapezoidal, wide on the tire 1 side and narrow on the opposite side to the tire 1 side. 28 is a spike tool, which is attached to the axial portion 14 of the main body portion 9;
It is inserted into both sides of the second rubber member 13b from the side of the second rubber member 13b, and includes the collar portion 29, body portion 30, and spike portion 31.
and are arranged in series toward the distal end side. The collar part 29 has a larger diameter than the body part 30, and as shown in FIG. It is located in between. As mentioned above, since the base of the spikes 28 is contained in the first rubber material 13a which is harder than the second rubber material 13b, even if an external force is applied to the spikes 28 from the road surface while driving, , the spike tool 28 does not move significantly, and therefore the spike tool 28 is unlikely to fall off from the rubber members 13a, 13b. Further, the tip end side of the body portion 30 of the spike tool 28 is inserted into the second rubber material 13b, and the spike portion 31 protrudes from the second rubber material 13b. Therefore, the spike tool 28 is embedded in the first rubber material 13a of high hardness and the second rubber material 13b of low hardness that are provided in a laminated state, and the collar portion 29 is in contact with the first rubber material 13a. ing. Reference numeral 25 indicates a side rope, and reference numeral 33 indicates a rubber elastic ring, which are arranged on one side and the other side of the rim 6, respectively, as shown in FIG.
The ends of the elastic ring 33 are connected to each other by a connector 26 shown in FIG.
are connected so that they can be separated at will. Then, this side rope 25 and elastic ring 33
The mesh 22 and the like on both side edge portions 10 and 11 are connected inside and outside in the radial direction by a connecting device 27, whereby the anti-skid device 8 is attached to the tire 1. FIG. 6 shows a second embodiment of the present invention, in which the spike tool 28 has a pair of flanges 29 and both flanges 29.
It consists of a body part 30 located in between and a spike tool 31 protruding from the tip side collar part 29, and the base side collar part 2
The bottom surface of 9 is exposed from the first rubber material 13a. FIG. 7 shows a third embodiment of the present invention, in which the same spikes 28 as in the first embodiment are used, and only the portion of the anti-slip device 8 between the spikes 28 and the tire 1 is , locally formed of the first rubber material 13a, and other portions formed of the second rubber material 13b. Therefore, the first rubber material 13a with high hardness is the second rubber material 13b with low hardness.
The spike tool 2 is installed in a buried state on the tire side of the
8 and firmly supports it. Incidentally, as shown by the imaginary line in FIG. 7, the entire portion of the anti-skid tool 8 closer to the tire than the spike tool 28 in the thickness direction may be formed of the first rubber material 13a. Next, a non-slip device 8 was manufactured and a comparative test was conducted. Table 1 below shows the second rubber material 13b of the anti-slip device 8.
For convenience, the first and second rubber materials 13a and 13b of the non-slip device 8 are entirely formed of the materials shown in each example in Table 1, and the composition examples and test results of the non-slip device 8 are shown. Durability, abrasion resistance, performance on ice, etc. were investigated. In the test results in Table 1, ◯ indicates excellent, △ indicates good, and × indicates poor. Looking at the test results, it can be seen that the example of the present invention is superior to the comparative example.

[Table] Notes, (*1), and (*2) are the same in Table 2 below. Table 2 below shows the first rubber material 13a of the anti-slip device 8.
An example of the composition of the present invention is shown.

【table】

[Table] Next, as shown in Table 3 below, the first and second rubber materials 13a and 13b of the anti-slip device 8 were formed with some composition examples shown in Tables 1 and 2, respectively. The durability of anti-skid device 8, wear resistance, performance on ice and snow, tire 1
We investigated the misalignment performance, etc. In the test results in Table 3, ◯ indicates excellent and △ indicates good. Looking at the test results, the example of the present invention is better than the comparative example.
It can be seen that there are many of them and that they are excellent.

[Table] In the examples, the reinforcing core material of the anti-slip tool was covered with the first and second rubber materials, but the anti-slip tool may not be provided with the reinforcing core material. (Effects of the invention) As described in detail above, the present invention is such that the high hardness rubber material part, which is harder than the anti-tire side part of the rubber material, is in contact with the tire side part of the rubber material and the spike tool. Since the anti-skid device is installed in a layered state or buried state in the corresponding part, it has good wrapping properties along the outer circumference of the tire, and even when external force is applied to the spike device from the road surface while driving. , the spike tool does not move significantly, and therefore the spike tool is unlikely to fall out from the rubber material. The present invention has the above advantages and is of great practical benefit.

[Brief explanation of drawings]

1 to 5 show a first embodiment of the present invention, FIG. 1 is a sectional view of the main parts of the anti-slip device, FIG. 2 is a plan view of the anti-slip device, and FIG. 3 is a plan view of the anti-slip device. 4 is a cross-sectional view taken along the line A-A in FIG. 3, FIG. 5 is a cross-sectional view taken along the line B-B in FIG. 2, and FIGS. Each figure in FIG. 7 is a cross-sectional view of the main part of the anti-slip device showing the second and third embodiments of the present invention. 1...Tire, 8...Slip device, 13a...First
Rubber material, 13b...Second rubber material, 28...Spike tool.

Claims (1)

[Scope of Claim for Utility Model Registration] In a tire that is wrapped around the outer circumference of a tire and is formed of a rubber material into a mesh shape and spikes are inserted into the rubber material, the side opposite to the tire of the rubber material. A non-slip tire characterized in that a high-hardness rubber material part, which is harder than the other parts, is provided in a laminated state or buried state on the tire side part of the rubber material and in the part that comes into contact with the spike tool. Ingredients.