JP2726082B2 - Tire anti-slip device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a tire anti-slip device which is mounted on the outer periphery of a tire to prevent the tire from slipping on an icy road or the like.

[Background Art] As a tire anti-slip device mounted on a tire on a snowy road or the like to improve the performance on snow of a vehicle, a device having a main body made of a metal chain has been used for a long time. There is a problem that it is heavy and difficult to handle.

Therefore, as shown in FIGS. 7 and 8, the main body is made of a flexible material such as rubber or a flexible polymer, and is formed into a net shape by forming a large number of frame portions 106 on the tire anti-skid device main body 101. The so-called net-type tire anti-slip device 100 is widely used.

However, as shown in FIG.
When the tire 100 rotates at a high speed in the direction of the arrow A in the space of the tire or the like, the tire anti-skid device main body 101 is loosened from a portion where the tire anti-skid device main body 101 extends in the longitudinal direction with a joint hook 104 connecting both ends in the longitudinal direction. Part can be.

For this reason, in the portion where the tire antiskid device main body 101 extends, the frame portion 106 constituting the tire antiskid device main body 101 and located on the outer side in the vehicle width direction is also changed from the shape shown in FIG.
As shown in the figure, the shape is extended in the longitudinal direction (the direction of the arrow) of the tire slip prevention device main body 101, and the shape of the frame portion 106 is deformed.

As a result, the mounting state of the tire anti-skid device 100 is changed to the eleventh.
As shown in the figure, the tire 102 is eccentrically depressed on the hook 108 attached to the frame portion 106 on the outer side in the vehicle width direction of the tire antiskid device main body 101, or the tire antiskid device 100 is detached from the tire 102. In some cases.

Therefore, as shown in FIG. 12, the radial band is attached to the hook 108 of the tire anti-skid device 100 in which the rubber ring 110 is locked.
Means for restraining the extension and loosening of the tire antiskid device main body 101 by locking the hook 112 and maintaining the pitch of the hook 108 constant have been considered. This radial band 11
2, a plurality (12 in FIG. 12) of arm portions 112B are radially extended from the ring portion 112A as shown in FIG. 12, and the tip of the arm portion 112B is engaged with the hook 108 of the tire anti-slip device 100. It stops the pitch of the hook 108 at regular intervals.

However, the provision of the radial band 112 has disadvantages that increase the number of parts and increase the cost.

[Problems to be Solved by the Invention] In view of the above-mentioned facts, an object of the present invention is to provide a tire anti-skid device in which a tire anti-skid device main body does not shift or come off from a tire even when the tire is rotating at high speed. .

Means for Solving the Problems The present invention includes a tire antiskid device body formed in a net shape by providing a plurality of frame portions wound around a tire, the base material being made of a flexible material. A tire anti-skid device comprising a frame provided in the tire anti-skid device body and a reinforcing portion intermittently defining the frame in a circumferential direction of the tire.

[Operation] In the present invention having the above-described configuration, the reinforcing portion that partitions the frame portion along the tire circumferential direction is intermittently provided on the frame portion provided in the tire anti-skid device body of the tire anti-slip device, When the tire rotates at a high speed and the pulling force acts on the tire anti-skid device, the tire anti-slip device is not impaired when the tire anti-skid device is mounted, and the tire rotates at high speed with the tire anti-slip device attached. Since the reinforcing portion provided on the main body limits extension of the tire anti-slip device body in the tire outer peripheral direction, eccentricity of the tire anti-slip device mounted on the tire can be prevented.

[First Embodiment] FIGS. 1 and 2 show a first embodiment of a tire anti-slip device 10 according to the present invention.

As shown in FIG. 1, a tire anti-slip device body 12 of a tire anti-slip device 10 has a reinforcing cord (not shown) made of an organic fiber, metal or the like embedded in a rubber material formed into a net shape. Except for the both end portions in the longitudinal direction, one substantially rhombic outer frame portion 16 is formed by four substantially rhombic small frame portions 14 and 14B which share a part with each other, except for both longitudinal end portions. Have been. The pair of small frame portions 14 is a tire anti-slip device body.
12 are arranged on both sides in the width direction, and the tops are connected to each other at the center in the width direction of the tire antiskid device main body 12. The small frame portion 14B is slightly smaller than these small frame portions 14, and is arranged with the central portion interposed therebetween. These outer frame portions 16 are adjacent to each other in the longitudinal direction of the tire anti-skid device body 12.
Corners 16A are connected to each other, and are connected to each other by two frame portions 18 along the longitudinal direction of the tire anti-skid device main body 12 located near both sides in the width direction of the tire anti-skid device main body 12. I have.

Among the substantially rhombic small frame portions 14, the small frame portion 14 located on the outer side in the vehicle width direction (the lower side in FIG. 1) in a state of being attached to the tire has a band shape so as to divide the small frame portion 14 into two triangles. Reinforcement part 15
Are integrally formed. In this embodiment, as shown in FIG. 1, the reinforcing portions 15 are located coaxially with the frame portion 18 located on the outer side in the vehicle width direction, and the reinforcing portions 15 are provided every other small frame portion 14 on the outer side in the vehicle width direction. It is formed intermittently.

At one end 20 (left side in FIG. 1) of the tire anti-slip device body 12 in the longitudinal direction, one substantially rhombic small frame portion 22 and two small frame portions 24 sharing a part with each other are provided. And a substantially triangular outer frame portion 26 is formed. The outer frame portion 26 is continuous with the outer frame portion 16 via a corner portion 16A. 2 along the longitudinal direction of
They are connected by a small frame portion 18 of the book.

At the other end 28 (the right side in FIG. 1) in the longitudinal direction of the tire anti-slip device body 12, one substantially rhombic small frame portion 30 and two small frame portions 32 sharing a part with each other are formed. One substantially triangular outer frame portion 34 is formed. The outer frame portion 34 is continuous with the outer frame portion 16 via a corner portion 16A, and is also connected near two sides in the width direction by two frame portions 18 along the longitudinal direction of the tire antiskid device main body 12. .

A spike pin 35 is provided at the corner 16A, which is the central portion in the vehicle width direction, of the tire antiskid device body 12 and at the center of the ends 20, 28 in the vehicle surface direction to further improve the antiskid effect of the tire antiskid device 10. (FIG. 1 front side in FIG. 1).

All the small frame portions along the longitudinal direction on the outer side in the vehicle width direction in a state where the tire slip prevention device body 12 is attached to the tire.
One end of a mounting bracket 36 is caulked and fixed to the top of 14. The other end of the mounting bracket 36 is bent toward the front side (front side in FIG. 1) of the tire anti-slip device body 12 to form a substantially J-shaped hook portion 36A.

In addition, the outer frame portion 34 of the end portion 28 of the tire anti-skid device body 12
A joint hook 38 as a mounting bracket is caulked and fixed to the top of the small frame portion 32 on the outer side in the vehicle width direction in the tire mounted state. The joint hook 38 has a hook portion 38A formed at one end, and the other end is branched into two branches. One of the fork portions 38B branched into two branches is fixed to the top of the small frame portion 32, and the other hook portion 38C is locked to the top of the small frame portion 24 of the other outer frame portion 26 on the same width direction side. It has become so.

Hook portion 38A of joint hook 38 and mounting bracket 3
As shown in FIG. 2, a plurality of (two in this embodiment) rubber rings 39 are fastened to the hook portion 36A of the tire 6 so that the tire slip prevention device body 12 is fastened to the tire 46. It is supposed to be.

On the other hand, on the inner side in the vehicle width direction (upper side in FIG. 1) of the tire anti-slip device body 12, all the outer frame portions 16 along the longitudinal direction are provided.
One end of a mounting bracket 40 is caulked and fixed to the small frame portion 14 and the small frame portion 32 of the outer frame portion 34. The other end of the fitting 40 is fixed by caulking to a rope 42 made of synthetic fiber or wire. End 28 of tire antiskid device body 12 of this rope 42
An eye portion 42A is formed at one end disposed at the end.

Further, a hook 44 which is engaged with the eye portion 42A is connected to the other end of the rope 42 which is disposed at the end 20 of the tire anti-slip device body 12. The middle part 44A of this hook 44
Are locked to the outer frame 26 to support the hook 44.

When the tire anti-skid device 10 of the present embodiment configured as described above is mounted on the tire 46, first, the side of the tire anti-skid device body 12 where the rope 42 is disposed is the tire 46.
The tire slip prevention device main body 12 is put on the outer periphery of the tire 46 so as to be positioned on the inner side surface of the tire 46. Next, the rubber ring 39 is engaged with the hook portions 36A of the fittings 36 at a few selected places, and the tire slip prevention device main body 12 is temporarily fixed to the tire 46. Thereafter, the tire 46 is rotated about half a turn to wind the tire antiskid device body 12 around the tire 46. And rubber ring
After removing 39 from the hook 36A of the mounting bracket 36,
The hooks 44 located on the inner side surfaces of the and the eye portions 42A are locked to connect the ropes 42 in a loop. Then the tire
Hook part of joint hook 38 located on the outer side surface of 46
By locking the 38C to the small frame portion 24 of the outer frame portion 26, both end portions of the tire antiskid device main body 12 are connected. Finally, hooks 36A and joint hooks 38 of all mounting brackets 36
The rubber ring 39 is hooked on the hook portion 38A, and the mounting operation is completed.

When the vehicle is suddenly started with the tire anti-slip device 10 mounted on the tire 46 and the tire 46 runs idle, the tire 46 rotates at a high speed. For this reason, a large tensile force is generated in the longitudinal direction of the tire antiskid device main body 12, and the tire antiskid device main body 12
Tends to extend in the longitudinal direction. Accordingly, the small frame portion 14 located on the outer side in the vehicle width direction of the tire anti-skid device main body 12 also tends to extend in the longitudinal direction of the tire anti-slip device main body 12. However, since the reinforcing portions 15 are integrally formed along the longitudinal direction of the tire anti-skid device main body 12 at intervals of one in the small frame portion 14, the extension of the small frame portion 14 is limited by the reinforcing portion 15. For this reason, the entirety of the tire anti-slip device body 12 is also suppressed from extending in the longitudinal direction.

Therefore, it is possible to prevent an extreme displacement of a part of the tire antiskid device main body 12 due to the tensile force generated in the tire antiskid device main body 12. For this reason, there is no possibility that the tire antiskid device 10 comes off the tire 46 or the tire 46 steps on the mounting bracket 36.

In the present embodiment, the tire antiskid device body 12
The small frame portion 14 is provided with a reinforcing portion 15, but since the reinforcing portion 15 is integrally formed of a synthetic resin material of the same material as the tire anti-slip device body 12, the tire anti-slip device is The trouble that makes the manufacture of the main body 12 difficult does not occur.

The reinforcing portion 15 may be manufactured separately from the tire antiskid device main body 12 and attached to the small frame portion 14 of the tire antiskid device main body 12 via a bolt, a rivet, or the like. In this case, the number of manufacturing steps is increased, but there is an advantage that the reinforcing portion 15 can be manufactured with a material having a strong tensile force.

Second Embodiment FIG. 3 shows a second embodiment of the tire anti-slip device 10 according to the present invention.
An example is shown.

The tire antiskid device 10 of the second embodiment differs from the tire antiskid device main body 12 of the first embodiment in the net pattern formed on the tire antiskid device main body 12.

That is, seven substantially rhombic small frame portions 1 sharing a part with each other except for both longitudinal end portions of the tire anti-slip device body 12.
An outer frame portion 16 is formed by 4, 14B, and 14C. More specifically, a diamond-shaped small frame portion 14B is formed at the center in the width direction of the tire anti-skid device main body 12, and both sides of the small frame portion 14B in the vehicle width direction surround the ends in the width direction of the small frame portion 14B. A small frame portion 14C, which is substantially rhombic and slightly smaller than the small frame portion 14B, is formed. Smaller frame portions 14 smaller than the small frame portions 14C are formed on both sides in the vehicle width direction with the small frame portion 14B interposed therebetween.

The outer frame portions 16 are connected to each other by two corner portions 16A which are corner portions of a small frame portion 14C protruding in the longitudinal direction of the tire anti-slip device body 12.

Further, at one end portion 20 (left side in FIG. 3) of the tire anti-slip device body 12 in the longitudinal direction, an outer frame portion 26 is formed by two substantially triangular small frame portions 24 sharing a part with each other, The outer frame portion 26 is provided with two corner portions 16A of the outer frame portion 16 on the outer frame portion 16.
Is continuous through. .

The other end 28 in the longitudinal direction of the tire antiskid device body 12
In FIG. 3 (right side), one outer frame portion 34 is formed by two substantially triangular small frame portions 32 that share a part with each other. The outer frame portion 34 is continuous with the outer frame portion 16 via two corners 16A of the outer frame portion 16.

As shown in FIG. 3, the small frame portions 14 located on both sides in the vehicle width direction of the tire anti-slip device body 12 are the small frame portions of the first embodiment.
It is formed in a state in which it is greatly expanded in the longitudinal direction (horizontal direction in FIG. 3) of the tire antiskid device main body 12 from the beginning as compared with 14. As a result, the inner diameter K of the small frame portion 14 is larger than the inner diameter size of the small frame portion 14 of the first embodiment. Reinforcing portions 15 are formed integrally with every other small frame portion 14 located outside the vehicle width direction except for the central portion, thereby dividing the small frame portion 14 into two triangles.

Therefore, the small frame portion 14 located on the outer side in the vehicle width direction greatly expands in the longitudinal direction of the tire anti-skid device main body 12, and the reinforcing portion 15 is provided. 10 has an advantage that the extension of the tire antiskid device main body 12 can be further restricted as compared with 10.

[Third embodiment] Fig. 4 shows a third embodiment of the tire anti-slip device 10 according to the present invention.
An example is shown.

The tire antiskid device main body 12 of the third embodiment has seven substantially diamond-shaped small frame portions 14, 14 that share a part with each other except for both ends in the longitudinal direction of the tire antiskid device main body 12.
An outer frame 16 having a shape in which two rhombuses are connected in the vehicle width direction by B and 14C is formed. A small frame portion 14B is formed at the center in the width direction of the tire anti-slip device body 12, and a small frame portion 14C is formed on both sides in the vehicle width direction of the small frame portion 14B so as to surround the small frame portion 14B. I have. Small frame portions 14 are formed on both sides of the small frame portion 14C in the vehicle width direction with the small frame portion 14B interposed therebetween.

The outer frame portions 16 are connected to each other by two corner portions 16A of an outer frame portion 16 (which is a corner portion of the small frame portion 14C) adjacent in the longitudinal direction of the tire antiskid device body 1.

Also, at one end 20 (left side in FIG. 4) of the tire anti-skid device body 12 in the longitudinal direction, five substantially rhombic small frame portions 22 and two substantially triangular small frame portions 22 which share a part with each other are provided. An outer frame 26 is formed by the frame 24. The outer frame portion 26 is continuous with the outer frame portion 16 via a corner portion 16A of the outer frame portion 16, and two frame portions along the longitudinal direction of the tire antiskid device main body 12 even near both sides in the width direction. Connected by 18.

The other end 28 in the longitudinal direction of the tire antiskid device body 12
In FIG. 4 (right side), an outer frame portion 34 is formed by five substantially rhombic small frame portions 30 and two substantially triangular small frame portions 32 that share a part with each other. The outer frame portion 34 is continuous with the outer frame portion 16 via a corner portion 16A of the outer frame portion 16, and the two frame portions 18 along the longitudinal direction of the tire antiskid device main body 12 also near both sides in the width direction. Are connected by

As shown in FIG. 4, a small frame portion located on the outer side in the vehicle width direction.
Reinforcing portions 15 are formed integrally with each other so as to divide the small frame portion 14 into every other portion.

In general, when the frame width dimension L of the small frame portions 14, 14B, 14C, 22, 24, 30, 32 is reduced, the tire antiskid device body 12 becomes weak against tensile force. By forming the reinforcing portion 15 in the frame portion 14, the extension of the tire antiskid device main body 12 can be limited to a small extent.

Fourth Embodiment FIG. 5 shows a fourth embodiment of the tire anti-slip device 10 according to the present invention.
An example is shown. In this embodiment, the net pattern of the tire antiskid device body 12 of the tire antiskid device 10 of the first embodiment is the same as the net pattern of the tire antiskid device body 12 of the first embodiment.

As shown in FIG. 5, in this embodiment, a space between two small frame portions 14 is provided between the reinforcing portions 15, that is, the outer frame portions 16 are provided every two reinforcing portions 15. Is formed.

In this embodiment, every second reinforcing member is provided on a small frame portion 14 located outside the tire anti-skid device body 12 in the vehicle width direction.
Although 15 is formed, the effect of restricting the extension of the tire antiskid device body 12 is slightly lower than that of the tire antiskid device 10 in which every other reinforcing portion 15 is formed, but there is no practical problem. In addition, the operating force at the time of mounting may be small.

Therefore, the tire antiskid device 10 in this embodiment is more practical than the tire antiskid devices of the first to fourth embodiments.

Fifth Embodiment FIG. 6 shows a fifth embodiment of the tire anti-slip device 10 according to the present invention.
An example is shown.

In this embodiment, one substantially rhombic outer frame is formed by four substantially rhombic small frame portions 14, 14B and 14C which share a part with each other, except for both ends in the longitudinal direction of the tire antiskid device body 12. A part 16 is formed.

As shown in FIG. 6, a small frame portion 14B slightly smaller than the small frame portion 14 is formed on both sides in the longitudinal direction of the tire anti-slip device body of the substantially rhombic small frame portion 14 long in the vehicle width direction. Have been. On the vehicle width direction side of the small frame portion 14B, a small frame portion 14C is formed to face the small frame portion 14. These outer frames 1
6, the two corner portions 16A of the adjacent outer frame portion 16 are connected to each other, and are located near both sides in the vehicle width direction of the tire anti-skid device main body 12 and extend in the longitudinal direction of the tire anti-slip device main body 12. Are also connected by the frame portion 18.

As shown in FIG. 6, the small frame portions 14 are repeatedly arranged on the inner side in the vehicle width direction and on the outer side in the vehicle width direction every other outer frame portion 16. That is, one of the adjacent outer frame portions 16 has the small frame portion 14 arranged inside in the vehicle width direction and the other arranged outside the vehicle width direction. And a small frame portion located on the outside in the vehicle width direction
A reinforcing portion 15 is integrally formed in the longitudinal direction of the tire antiskid device main body 12 so as to partition the small frame portion 14.

In the present embodiment, a dual pin 60 instead of a spike pin is provided at a connection portion between the small frame portion 14 and the small frame portion 14C facing in the vehicle width direction and at a corner 16A of the outer frame portion 16. The dual pin 60 has a substantially C-shape and is formed with two protrusions 60A, so that the dual pin 60 is wound around a connecting portion between the small frame portion 14 and the small frame portion 14C and a corner portion 16A of the outer frame portion 16. Has become.

One end 20 in the longitudinal direction of the tire antiskid device body 12
In FIG. 6 (left side), one substantially triangular small frame portion 22 and two substantially triangular small frame portions 24 form one substantially triangular outer frame portion.
26 are formed. This outer frame portion 26 is a corner portion 16 of the outer frame portion 16.
A is connected to the outer frame portion 16 at two points, and two frame portions along the longitudinal direction of the tire antiskid device main body 12 even in the vicinity of both sides in the width direction.
Connected by 18.

At the other end 28 (right side in FIG. 1) in the longitudinal direction of the tire anti-slip device body 12, one substantially rhombic small frame portion 30 and 2 is provided.
The one substantially triangular small frame part 32 forms one substantially triangular outer frame part 34. The outer frame portion 34 is connected to the outer frame portion 16 at a corner 16A of the outer frame portion 16 and is connected to the outer frame portion 16 by two frame portions 18 along the longitudinal direction of the tire antiskid device main body 12 near both sides in the width direction. ing.

In the present invention, the tire antiskid device body 12
The reinforcing portion 15 is always provided on the small frame portion 14 on the outer side in the vehicle width direction of the outer frame portion 16 adjacent to the outer frame portions 26 and 34 which are located at both ends in the longitudinal direction of the vehicle and the joint hook 38 is locked. On the other hand, both ends in the longitudinal direction of the tire antiskid device main body 12 are portions where a particularly strong tensile force acts because the tire antiskid device main body 12 is discontinuous.

Further, in the present invention, since an extension restricting component such as a radial band for regulating the extension of the tire anti-slip device main body 12 is not required, an increase in the number of parts of the tire anti-slip device 10 and an increase in cost can be suppressed.

In each of the above embodiments, the case where the small frame portion 14 is formed in a substantially rhombic shape has been described, but the present invention is not limited to this, and the small frame portion 14 can be expanded and contracted including a polygon such as a pentagon. It is needless to say that various other forms are also possible for those formed in other shapes, as long as the reinforcing portions 15 for regulating expansion and contraction are provided intermittently in the circumferential direction.

[Effects of the Invention] As described above, in the tire anti-skid device according to the present invention, the reinforcing portion is provided in the frame portion provided in the tire anti-slip device main body, so that the tire anti-slip device main body is generated at the time of high-speed rotation of the tire. Since the pulling force is limited by the reinforcing portion, there is an effect that the eccentricity of the tire antiskid device can be prevented and the tire antiskid device can be prevented from being displaced or detached from the tire.

[Brief description of the drawings]

1 and 2 show a first embodiment of a tire anti-slip device according to the present invention. FIG. 1 is a plan view of a tire anti-slip device main body, and FIG. FIG. 3 is a plan view of a tire anti-skid device body showing a second embodiment of the tire anti-slip device according to the present invention,
FIG. 4 is a plan view of a tire anti-skid device according to a third embodiment of the present invention. FIG. 5 is a tire anti-skid device according to a fourth embodiment of the present invention. FIG. 6 is a plan view of a tire antiskid device according to a fifth embodiment of the present invention, and FIGS. 7 to 11 show a conventional tire antiskid device. , FIG. 7 is a plan view of the tire anti-skid device body, FIG. 8 is a diagram showing the tire anti-slip device mounted on the tire, FIG. 9 is a partially enlarged view of the outer frame portion, and FIG. FIG. 11 is a diagram showing a state in which a tire antiskid device is mounted on a tire, and FIG. 12 is a diagram showing a state in which another conventional tire antiskid device is mounted on a tire. 10 ... tire anti-slip device, 12 ... tire anti-slip device body, 15 ... reinforcement, 14 ... small frame portion.

Claims (1)

(57) [Claims] 1. A tire anti-slip device comprising a tire anti-slip device main body formed of a net by being wound around a tire and provided with a plurality of frames, the base material being made of a flexible material. A tire anti-skid device, wherein a reinforcing portion for defining a frame portion is intermittently provided in a frame portion provided in the tire anti-slip device body along a tire circumferential direction.