JPH01164608A - Tire slip stopper device - Google Patents

Abstract

PURPOSE:To permit a main unit to be easily removed from a tire by arranging a back patch member, consisting of material of low adhesiveness to the tire, in the main unit in its surface adapted to the tire, in the case of a tire slip stopper device forming the main unit by rubber material. CONSTITUTION:A tire slip stopper device 10, mounted to a tire 20, is for preventing a tire from slipping on a snow covered road or the like, and providing a reinforcing cord 11 to be embedded in a main unit 10, its basic material is formed from rubber material. Here, the main unit 10 arranges in its surface, adapted to the tire, a back patch member 100, consisting of material of low adhesiveness to the tire, to be connected to a base part consisting of rubber material. The back patch material 100 is formed from a material of low coefficient of surface friction. Thus, the main unit 10 is suppressed from adhering to and being easily removed from the tire.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tire anti-slip device that is attached to a tire on a snow-covered road or the like to improve the performance of a vehicle on snow.

[Prior art] This type of anti-slip device for tires has long been used with a main body made of a metal chain. Tire anti-skid devices made of materials such as flexible polymers are becoming popular.

Among tire slip prevention devices whose bodies are made of materials such as rubber or flexible polymers, the so-called ladder type and net type are the mainstream.

By the way, tire slip prevention devices whose main bodies are made of rubber material have a weakness in that reinforcing materials such as reinforcing cords must be embedded in the main body to ensure tensile strength, but anti-slip devices made of flexible polymers In comparison, it has a superior road surface gripping force on snow-covered roads and the ability to obtain higher tire anti-slip performance, which is an irreplaceable advantage. In addition, the road surface has high wear resistance, so it has excellent durability.

Another weakness of this tire anti-slip device whose main body is made of rubber material is that the tire equipped with the tire anti-slip device spins in relation to the main body (the rotational speed of the tire becomes slightly higher than the rotational speed of the main body). Therefore, frictional heat is generated between the tire and the main body, both of which have large coefficients of friction, and thermal decomposition occurs on the sliding surfaces of both, causing breakage of the main chain and producing stickiness.

For this reason, the main body of the tire anti-skid device and the tire become adhesive, so when removing the tire anti-slip device, the main body must be peeled off from the tire, which poses a problem in workability. there were.

[Problems to be Solved by the Invention] In view of the above, an object of the present invention is to improve the workability when uninstalling a tire slip prevention device whose main body is made of a rubber material.

[Means for Solving the Problems] The present invention provides a tire slip prevention device whose basic material is a rubber material, in which a rubber backing material made of a material with low adhesion to the tire is attached to the contact surface of the main body with the tire. The structure is such that it is connected to a base made of material.

[Function] In the present invention having the above configuration, the tire spins against the main body and frictional heat is generated between the two, thermal decomposition occurs on the surface of the tire and the main chain is severed, resulting in stickiness. Even if
Since the backing material does not easily adhere to the tire, the main body easily separates from the tire during installation and removal work.

[Embodiment of the Invention] Figs. 1 to 3 show a first embodiment of a tire slip prevention device according to the present invention, and this embodiment is applied to a so-called net type device.

As shown in FIG. 2, the main body 1 of the tire anti-slip device
0 has a base made up of a reinforcing cord 11 made of organic fibers, metal, etc. (see Figure 1) embedded inside a rubber material molded into a net shape. 1 by four roughly diamond-shaped small frames that share a part with
A substantially diamond-shaped outer frame portion 10A is formed, and this outer frame portion 10
A is formed continuously in the longitudinal direction, and the adjacent outer frame portions 10A are connected by a small frame portion 10B located at the widthwise end of the main body 10 and extending in the longitudinal direction of the main body 10.

In addition, at both ends in the longitudinal direction, one approximately rhombic small frame portion and two approximately triangular small frame portions share a part with each other.
approximately triangular outer frame portions 10C are formed, and this outer frame portion 1
0C is continuous with the outer frame portion 10A, and the outer frame portion 10A and the outer frame portion 10C are also connected by a small frame portion 10B similar to the above.

Note that one reinforcing cord 11 is arranged in a single stroke so as to pass through all of the frame parts forming the main body IO.

As shown in FIG. 1, a backing material 100 is bonded to the entire back side of the main body 10 (the back side of the paper in FIG. 2, which is the surface that comes into contact with the tire) where the base is constructed as described above. It is located. This backing material 100 is made of a synthetic resin material shown in Table 1 that has low adhesion to tires and a low coefficient of surface friction, and is adhered to the base of the main body 10. In the case of this embodiment, the thickness T of the backing material 100 is 1 mm.
It is set below.

Table 1 Note that in FIG. 2, the reference numeral 19 indicates spikes arranged in a row along the longitudinal direction at the central portion of the main body 10 in the width direction.

At one end in the width direction of the main body 10, one end of a mounting bracket 12 is fixed by caulking to all the outer frame parts 10A and one outer frame part 10C along the longitudinal direction. The other end of the mounting fitting 12 is fixed by caulking to a rope 14 as an inner fitting made of synthetic fiber or wire. rope 14
An eye portion 14A is formed at one end, and a joint hook 15 as a mounting fitting is engaged at the other end.

This joint hook 15 is also fixed to the outer frame portion 10C by caulking, so that the hook portion 15A is hooked to the eye portion 14A.

On the other hand, at the other end of the main body 10 in the width direction, one end of a mounting bracket 16 is fixed by caulking to all the outer frame parts 10A along the longitudinal direction. The other end of the mounting fitting 16 is bent toward the front surface of the main body 10 (the front side in the drawing) to form a hook portion 16A having a substantially J shape.

Furthermore, a joint hook 18 serving as a mounting fitting is fixed to one of the outer frame portions 10C by caulking. As shown in detail in FIG. 3, this joint hook 18 has a hook portion 18Δ formed at one end, and is bifurcated at the other end. One branch portion 18B is the outer frame portion 10C as described above.
The hook portion 18C formed on the other branch portion is hooked to the other outer frame portion 10C on the same widthwise end side.

The tire slip prevention device of this embodiment constructed as described above is mounted on a tire 20 as shown in FIG. 4. That is, the main body 10 is wound around the outer periphery of the tire 20 with the side on which the rope 14 is disposed on the inner side surface of the tire 20 . The rope 14 is connected in a loop shape by hooking the hook portion 15A of the joint hook 15 to the eye portion 14A. Next, the hook portion 18C of the joint hook 18 is hooked to the outer frame portion 10C on the outer side surface of the tire 20. Finally, two or three rubber rings 22 as outer mounting tools are hooked onto the hook portion 16A of the mounting bracket 16 and the hook portion 18A of the joint hook 18, and the mounting work is completed.

When the main body 10 is attached to the tire 20, the portion A shown in FIG. 2 is located at the tread portion of the tire 20, and the portion B
is located from the shoulder portion to the sidewall portion of the tire 20.

Note that the backing material 100 made of the material shown in Table 1 has higher rigidity than a rubber material, but since the backing material 100 may be thin, it may impair the compatibility of the main body 10 with the tire 20. Never.

While the vehicle is running, the tires 20 spin slightly relative to the main body 10, so frictional heat is generated between the tires 20 and the main body 10, and the surface of the tires 20 may become sticky.
Since the backing material 100, which has low adhesion to the tire 20, is in contact with the tire 20, the main body 10 is difficult to adhere to the tire 20. In particular, in the case of this embodiment, the backing material 1
00 uses a material with a low surface friction coefficient, so
The amount of heat generated between the tire 20 and the main body 10 is reduced, and the tackiness of the tire 20 itself is reduced.

Furthermore, since the surface hardness of the rubber material of the main body 10 is higher than that of the rubber material of the tire, in the case of conventional devices, when the tire spins, the main body slides into contact with the sidewall of the tire with large frictional resistance. However, in the case of this embodiment, since the backing material 100 is made of a material with a low surface friction coefficient, the main body 10 is able to scrape off and damage the sidewall part of the tire. Smooth sliding contact with small frictional resistance prevents damage to the sidewall.

The anti-slip device can be removed from the tire 20 by reversing the installation procedure described above, but when the main body 10 is finally removed from the tire 20, the main body 10 is not attached to the tire 20. , the work can proceed smoothly.

In the above embodiment, the backing material 100 is bonded to the entire back side of the base of the main body 10 made of rubber material.
Even if it is arranged only in the portion B of FIG. 2, which corresponds to the portion from the shoulder portion of the tire 20 to the sidewall portion where the friction with the tire 20 is particularly strong, sufficient effects can be obtained.

Furthermore, various materials, processing methods, and bonding means can be applied to the backing material 100 in addition to the materials and processing methods shown in Table 1.

FIG. 5 shows a second embodiment of the present invention, which is applied to a so-called ladder type tire slip prevention device.

In this embodiment, as shown in FIG. 6, a tire 20 of a main body 10 whose base is made of a rubber material is attached to a tire 20.
Although the backing material 100 as in the embodiment described above is bonded to the entire surface of the contact surface with the tire 20, it may be arranged only on the part where the friction with the tire 20 is particularly strong, as in the case of the embodiment described above.

In addition, in the figure, reference numeral 24 is a mounting bracket, and reference numeral 26 is a mounting bracket 2.
The rope 28 is a spike pin that serves as a mounting device for connecting the plurality of main bodies 10 to each other via the rope 4.

This embodiment also provides the same functions and effects as those of the previous embodiment.

A third embodiment of the present invention is shown in FIGS. 7 and 8, and in this embodiment, the surface of the backing material 100 of the main body 10 (the back surface of the main body 10) A large number of cylindrical protrusions 102 are formed on the abutting surface.

In this embodiment, the diameter of the protrusion 102 is 5 to lQ.
mm, and the protrusion height H is set to 2 to 3 mm.

In the tire anti-slip device of this embodiment, the effect of the projections 102 reduces the slippage between the tire and the main body 10, reduces the frictional heat generated between the tire and the main body 10, and also reduces the amount of friction between the tire and the main body 10. The risk of injury is lowered and the performance of the tire anti-slip device is improved.

Note that the shape of the protrusions 102 is not limited to a cylindrical shape, and various shapes can be applied, and the arrangement intervals may be either equal or unequal intervals.

Moreover, it may be arranged not on the entire back surface of the main body 10 but partially.

Furthermore, although this embodiment is applied to a net type, it can also be applied to a ladder type as in the second embodiment.

A fourth embodiment of the present invention is shown in FIGS. 9 to 11, and in this embodiment, the main body is aligned with the spikes 19 provided on the main body 10 of the tire slip prevention device of the first embodiment. A protruding plate 104 is disposed on the back surface of the tire 10 (the surface in contact with the tire). The protrusion plate 104 is made of a synthetic resin material, and is attached together when the spike 19 is attached to the main body 10 by caulking.The protrusion plate 104 protrudes from the periphery of the protrusion 1060, and has the same function and effect as the third embodiment. play.

Note that this protruding plate 104 may be arranged corresponding to all the spikes 19 or may be arranged intermittently.

[Effects of the Invention] As explained above, in the tire slip prevention device according to the present invention, a backing material made of a material with low adhesion to the tire is provided on the contact surface with the tire of the main body whose basic material is a rubber material. Since the main body is connected to the base made of rubber material, the main body is less likely to stick to the tire, and the workability when removing the mounting is improved.

[Brief explanation of the drawing]

FIG. 1 is a sectional view taken along line I-I in FIG. 2 showing a first embodiment of the tire slip prevention device according to the present invention, and FIG. 2 is a plan view of the net type tire slip prevention device of the first embodiment. Figure, 3rd
1 is a partially detailed perspective view of FIG. 1, FIG. 4 is a side view showing a state in which the tire slip prevention device of the first embodiment is attached to a tire, and FIG. 5 is a perspective view of a second embodiment of the present invention. FIG. 6 is a front view of the main body of the ladder type tire anti-skid device shown in FIG. FIG. 8 is a partially enlarged perspective view of FIG. 7, and FIG. 9 is a net-type tire showing a fourth embodiment of the present invention. FIG. 10 is a partial back view of the anti-slip device, FIG. 10 is a sectional view taken along the line X--X in FIG. 9, and FIG. 11 is an exploded perspective view of FIG. 9. 10... Main body, 20... Tire, 100... Backing material. +00: Loudang 2nd figure 20 Taiya 7th figure 9th figure 10th

Claims (2)

[Claims] (1) In a tire slip prevention device whose main body is made of a rubber material, a backing material made of a material with low adhesion to the tire is bonded to the base made of a rubber material on the surface of the main body that comes into contact with the tire. A tire slip prevention device characterized by the following: (2) The tire slip prevention device according to claim (1), wherein the backing material is a material with a low surface friction coefficient.