JP2719382B2 - 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.

[Related 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. BACKGROUND ART Tire anti-skid devices whose main body is made of a material such as rubber or a flexible polymer have become widespread because they are heavy and difficult to handle.

In a tire anti-slip device whose main body is made of a material such as rubber or a flexible polymer, the main body is mounted on a tire in a pressed state by a rope, a rubber ring or the like.

As shown in FIG. 11, a conventional tire antiskid device 100
Is a hook 106 fixed to one end of a rope 104 disposed on the vehicle interior side (left side in FIG. 11) of the tire antiskid device main body 102, and an eye 108 formed at the other end of the rope 104
The tire slip prevention device 100 provided with the following is common.

However, as shown in FIGS. 12 and 13, when the tire anti-skid device 100 is mounted on the tire 110, the hook 106 and the eye portion 108 are located inside the vehicle of the tire 110 (the front side in FIG. 12, the left side in FIG. 13). ). Therefore, in order to lock the hook 106 and the eye portion 108, the worker must insert the hand deeply into the vehicle of the tire 110 and perform the locking work by groping, so that the hook 106 and the eye portion 108 are locked. take time.

Therefore, in order to solve the above-mentioned problem, FIGS.
A tire anti-slip device 100 as shown in the figure has been proposed. As shown in FIG. 14, the tire anti-skid device 100 has a width dimension in the width direction (the left-right direction in FIG. 14) centered on the center line A of the road surface contact portion of the tire anti-slip device main body 102, and the width of the vehicle inside portion (the The width L1 of the left side of FIG. 14 is shorter than the width L2 of the outer side of the vehicle (the right side of FIG. 14).

Therefore, when the tire anti-skid device 100 is mounted on the tire 110, as shown in FIG. 15 and FIG.
And the eye portion 108 is located near the outer periphery of the tire.
For this reason, it is not necessary to insert the hand deep inside the vehicle, so that the hook 106 and the eye 108 can be easily locked.

However, as shown in FIG. 15 and FIG. 16, the tire anti-skid device 102 separates from the tire 110 due to high-speed rotation of the tire 110 because the portion of the tire anti-skid device 102 that covers the tire 110 is small inside the vehicle. There is a possibility that it will be.

Also, as shown in FIG. 17, at the vehicle outer portions at both ends in the longitudinal direction of the tire antiskid device 102, the tire outer portions at the both ends in the longitudinal direction of the tire antiskid device 102 are connected by the joint hook 112. I have. At both ends in the longitudinal direction of the tire antiskid device 102 to which the joint hook 112 is locked, a particularly strong centrifugal force acts on the high-speed rotation of the tire 110 because the tire antiskid device 102 is discontinuous.

However, in the conventional tire anti-skid device 100, both the longitudinal end portions and the intermediate portion of the tire anti-slip device main body 102 have the same width dimension (see FIG. 11).

For this reason, as shown in FIG. 17, a joint hook 1 attached to the vehicle outer side of the tire anti-skid device body 102 is provided.
Of the rubber ring 116 made of a flexible material such as rubber and the arm portion 118A of the radial band 118,
The portion of the rubber ring 116 and the arm portion 118A that are locked to the joint hook 112 greatly extend in the tire outer peripheral direction when the tire 110 rotates at a high speed, and as a result, the tire antiskid device main body 102 may swell.

[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 capable of improving workability of mounting the tire anti-slip device on a tire.

It is another object of the present invention to provide a tire anti-skid device capable of effectively suppressing the swelling of the main body of the anti-skid device due to centrifugal force during high-speed rotation of the tire.

[Means for Solving the Problems] A tire anti-slip device according to the present invention is provided with a tire anti-slip device main body wound around a tire by being wound around the tire and connecting both ends in a longitudinal direction, and the tire anti-slip device. A long inner fastening tool provided on the inside of the vehicle in the width direction of the main body and for fastening the tire anti-slip device body to the tire, and a longitudinal anti-slip device main body provided at one end of the inner fastening tool. A first connector that is locked to one end, and a first connector that is provided at the other end of the inner fastener and that is locked to the other longitudinal end of the tire anti-slip device body. A second connecting tool connected to the tire anti-slip device, a plurality of mounting brackets mounted from one end in the longitudinal direction to the other end of the tire anti-slip device main body in the width direction of the vehicle, and the tire anti-slip device Tie the body The tire is slipped by being engaged with the plurality of mounting brackets arranged in an annular shape when mounted along the outer peripheral surface of the tire, and capable of being extended and elastically pulling the plurality of mounting brackets toward the tire rotation axis. An outer fastening tool for fastening the locking device main body to the tire, characterized in that the width dimension of both longitudinal end portions of the tire anti-slip device body is shorter than the width dimension of the longitudinal middle portion of the tire anti-slip device. I have.

[Action]

In the present invention having the above configuration, the tire anti-slip device body is put on the tire in such a state that the long inner fastening tool is located on the inner side in the vehicle width direction. Next, an outer fastening tool is temporarily fixed to the vehicle outer portion of the tire anti-slip device. Then, the tire is rotated about half a turn to wind the tire antiskid device body around the tire. Thereafter, the temporarily fastened outer fastener is removed and both ends of the inner fastener are connected. Here, the width dimension of the tire anti-skid device main body in the longitudinal direction both ends in the tire anti-slip device main body is made smaller than the middle portion in the longitudinal direction of the tire anti-slip device main body, so that the tires at both ends in the longitudinal direction of the tire anti-slip device main body are provided. At least one of the inner portion and the tire outer portions at both ends in the longitudinal direction of the tire anti-skid device body can be brought closer to the tire outer peripheral surface. Therefore, when the tire inner portions at both ends in the longitudinal direction of the tire anti-skid device body are close to the tire outer surface, when connecting the longitudinal both ends of the tire anti-slip device body, insert the hand deeply into the vehicle. The inner fastener can be connected without it. Further, when the tire outer portions at both ends in the longitudinal direction of the tire anti-skid device body are close to the outer peripheral surface of the tire, the mounting brackets locked to both ends in the longitudinal direction of the tire anti-slip device main body are used for tire slip. Since it is located in the tire radial direction outer than the fittings locked in the longitudinal middle part of the stopper device main body, when the outer fastener is locked to these fittings,
The portion of the outer fastener that is locked by the mounting brackets that are locked to both ends in the longitudinal direction of the tire anti-skid device body is related to the mounting bracket that is locked to the longitudinally intermediate portion of the tire anti-slip device body. Since it is locked in a state where it is extended from the part to be stopped, a tensile force is generated radially inward of the tire,
Since the elongation of the outer fastener is suppressed to be small even by the centrifugal force when the tire is rotating at a high speed, the swelling of the tire antiskid device body can be effectively suppressed.

First Embodiment FIGS. 1 to 3 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. The main part is constituted. Except for both longitudinal end portions of the tire slip prevention device main body 12, one substantially rhombic outer frame portion 16 is formed by four substantially rhombic small frame portions 14 which share a part with each other. The outer frame 16 is formed continuously in the longitudinal direction. Adjacent corner portions of these outer frame portions 16 are connected to each other, and a small frame portion 18 which is located at a widthwise intermediate portion of the tire antiskid device main body 12 and is disposed in the longitudinal direction of the tire antiskid device 12. Thus, the corner portions are connected to each other.

Also, at one end 20 in the longitudinal direction of the tire anti-slip device body 12, a substantially triangular outer frame is formed by a substantially rhombic small frame portion 22 and two substantially triangular small frame portions 24 sharing a part with each other. Department
26 are formed. The width L1 (the left-right direction in FIG. 1) of the outer frame 26 is designed to be smaller than the width L2 of the outer frame 16. The outer frame portion 26 is continuous with the outer frame portion 16 at the protruding end of the plurality of outer frame portions 16, and also between the outer frame portion 16 and the outer frame portion 26 at the center in the width direction and as described above. Are connected by a small frame portion 18.

At the other end 28 in the longitudinal direction of the tire antiskid device body 12, substantially rhombic small frame portions 30 and 2 sharing a part with each other.
The one substantially triangular small frame part 32 forms one substantially triangular outer frame part 34. The outer frame portion 34 is also connected to the outer frame portion 16 at the end of the plurality of outer frame portions 16 via the central portion in the width direction and the small frame portion 18. The length of the outer frame 16 is set to be smaller than the width L2 of the outer frame 16 with the same length as that of the outer frame 26.

All outer frames 16 along the longitudinal direction of the tire anti-slip device body 12 have mounting brackets 36 on the vehicle outer side (the right side in FIG. 1).
Is caulked and fixed at one end. These mounting brackets 36
Is bent toward the front side (front side in the drawing) of the tire antiskid device body 12 to form a substantially J-shaped hook portion 36.
A is forming. As shown in FIG. 2, a rubber ring 39 as an outer fastener and an arm 41A of a radial band 41 as an outer fastener for fastening the tire anti-slip device body 12 to the tire 37 are engaged with the hook portion 36A. It is designed to stop.

As shown in FIGS. 1 and 2, a joint hook 38 as a fitting is fixed to the outer frame 34 of the end portion 28 of the tire anti-slip device body 12 by caulking. The joint hook 38 has a rubber ring 30 and a radial band at one end.
A hook portion 38A for engaging the arm portion 41A of the 41 is formed, and the other end is branched into two branches. One branch portion 38B is fixed to the outer frame portion 34 as described above, and the hook portion 38C formed on the other branch portion is hooked on the outer frame portion 26 of the one end portion 20. .

On the other hand, one end of a mounting bracket 40 is caulked and fixed to all the outer frames 16, 34 along the longitudinal direction of the tire anti-slip device body 12 on the vehicle inner side (the left side in FIG. 1). The other end of the mounting bracket 40 is caulked and fixed to a rope 42 as an inner fastening tool made of synthetic fiber or wire. This rope 42
A loop-shaped eye portion 42A as a first connector is formed at one end of the tire anti-skid device main body 12 at the end 28.

An annular body 43 is formed at the other end of the rope 42, and one end of a hook 44 as a second connector is locked to the annular body 43. The other end 44A of the hook 44 is attached to the small frame portion 24.
, And an intermediate portion 44B of the hook 44 is substantially J-shaped.

Next, a procedure for attaching the tire anti-skid device 10 of the present invention to the tire 37 as shown in FIG. 3 will be described.

First, the tire antiskid device main body 12 in which the rope 42 is loosened is put on the outer periphery of the tire 37 such that the side on which the rope 42 is disposed corresponds to the vehicle 37 inner side surface. Next, rubber rings 39 are attached to hook portions 36A of two or three mounting brackets 36 appropriately selected for the tire anti-slip device body 12.
And temporarily fix it. Then, the tire 37 is rotated about half a turn to wind the tire antiskid device body 12 around the tire 37. Thereafter, the temporarily-fixed rubber ring 39 is removed. afterwards,
Put your hands inside the vehicle of the tire 37 and put the eye 42A and hook 44
Are gripped and approached to lock the two.

In this case, as shown in FIG. 1, the width L1 of the outer frame portions 26 and 34 on which the hook 44 and the eye portion 42A are supported is formed smaller than the width L2 of the outer frame portion 16. The eye portions 42A are both located near the road contact portion (see FIG. 3).

Therefore, the worker does not need to put his hand deeply inside the vehicle of the tire 37, so that the locking operation of the eye portion 42A and the hook 44 can be easily performed. As a result, the inside of the tire anti-slip device body 12 in the width direction is annularly connected.

Next, the hook portion 38C of the joint hook 38 is locked to the outer frame portion 26 of the tire antiskid device main body 12 outside the tire 37 on the vehicle. Thereby, the tire antiskid device main body 12 is connected in a ring shape. Then, as shown in FIG. 2, a plurality of rubber rings 39 are engaged with the hook 36A of the mounting bracket 36 and the hook 38A of the joint hook 38. Then, the arm portion 41A of the radial band 41 is engaged with the hook portion 36A of the mounting bracket 36 and the hook portion 38A of the joint hook 38.

As a result, the tire anti-slip device body 12 is
The tire slip prevention device 10 is mounted on the tire 37 by being fastened with the rubber link 39 and the radial band 41.

In this case, as shown in FIG. 2, the joint hook 38 is located on the outer peripheral side of the tire 37 as compared with the mounting bracket 36. Therefore, a tensile force acts on the rubber ring 39 portion locked to the joint hook 38 and the arm portion 41A of the radial band 41 to be pulled toward the outer peripheral side of the tire 37.

For this reason, even when a strong centrifugal force acts on both ends in the longitudinal direction of the tire anti-skid device main body 12 at the time of high-speed rotation of the tire 37, the rubber ring 39 which is locked to the joint hook 38.
And the arm portion 41A of the radial band 41 have already been extended, so that even if a strong centrifugal force is applied, they no longer extend so much, the swelling of the tire slip prevention device body 12 is suppressed.

Further, since the tire anti-skid device body 12 of this embodiment is mounted in a state that the tire anti-skid device 10 is deeply covered with the tire 37 except for both ends in the longitudinal direction, the tire anti-slip device 10 falls off the tire 37 due to tire high-speed rotation or the like. There is no such thing.

Second Embodiment FIGS. 4 to 7 show a second embodiment of the tire slip prevention device 10 according to the present invention.

As shown in FIG. 4, in this embodiment, an outer frame 26 formed at one end 20 of the tire anti-skid device body 12 is provided.
The shape of the outer frame portion 34 formed on the other end portion 28 is different from that of the embodiment.

That is, the dimension L3 of the vehicle outer portion (the right side in FIG. 4) of the outer frame portion 26 and the outer frame portion 34 with respect to the center portion in the width direction of the tire antiskid device main body 12, that is, the center line A of the road surface contact portion is the vehicle. It is larger than the dimension L4 of the inner part (the left side in FIG. 4).

For this reason, the hook 44 locked to the outer frame 26 and the outer frame
As shown in FIG.
It is located outside the vehicle from the middle part of 2.

Therefore, when locking the eye portion 42A and the hook 44, the sixth
As shown in the figure, both the eye portion 42A and the hook 44 are located near the road contact portion of the tire anti-skid device body 12, so that the worker can put the eye portion 42A and the hook 44 without deeply inserting the hand inside the vehicle. Can be locked.

For this reason, as shown in FIG. 7, even if the gap between the tire 37 and the vehicle body is narrow, only the eye portion 42A and the hook 44 are located near the road surface contact portion of the tire anti-skid device body 12, so that The eye portion 42A and the hook 44 can be easily locked.

As shown in FIG. 4, the outer frame portions 26 and 34 of the tire anti-slip device 12 protrude in the vehicle outer direction by the same size as the outer frame portion of the outer frame portion 16 so that the rubber When the ring 39 and the radial band 41 are attached, the outer side of the tire 37 is in a state as shown in FIG.

Third Embodiment FIGS. 8 to 10 show a third embodiment of the tire antiskid device 10 according to the present invention.

As shown in FIG. 8, in this embodiment, the outer frame portion around the center line A of the road surface contact portion of the tire anti-skid device 12 is provided.
The dimension L5 of the outer side portion of the vehicle 26 and the outer frame portion 34 is smaller than the dimension L6 of the inner side portion of the vehicle.

Therefore, as shown in FIG. 9, the position of the joint hook 38 is closer to the outer peripheral surface of the tire 37 than the position of the other mounting brackets 36. Therefore, the joint hook 38 engaged with the outer frame portions 26, 34 also approaches the outer peripheral surface of the tire 37 as compared with the mounting bracket 36. For this reason, the rubber ring 39 locked to the joint hook 38
Part and the arm part 41A of the radial band 41 are the mounting bracket 36.
A stronger pulling force acts on the rubber ring 39 and the arm portion 41A, which are locked to the joint hook 38 in an extended state.

Therefore, even when the tire 37 rotates at a high speed and strong centrifugal force acts on both ends in the longitudinal direction of the tire anti-skid device body 12, the portion of the rubber ring 39 and the arm portion 41A locked to the joint hook 38 have already been extended. Since it is in the state, the portion of the rubber ring 39 and the arm portion 41A are less elongated. Therefore,
The swelling of the tire slip prevention device main body 12 is suppressed.

In addition, as shown in FIG.
Since the vehicle inner portions of the outer frame portions 26 and 34 protrude in the vehicle inner direction by the same dimension as the vehicle inner portion of the outer frame portion 16, the tire 37
When the tire antiskid device body 12 is wound around the
The inside of the vehicle 37 is in a state as shown in FIG.

[Effects of the Invention] As described above, in the tire anti-skid device according to the present invention, the width at both ends in the longitudinal direction of the tire anti-slip device is smaller than the width at the longitudinal middle portion of the tire anti-skid device. Therefore, there is an effect that the both ends in the longitudinal direction of the tire anti-skid device main body can be connected without inserting the hand inside the vehicle.

Further, since the outer fasteners, which are locked to the vehicle outer portions at both ends in the longitudinal direction of the tire anti-skid device main body, are strongly pulled in the tire outer peripheral direction, the centrifugal force due to the high-speed rotation of the tire causes the tire anti-slip device main body to have a centrifugal force. Even if it strongly acts on both ends in the longitudinal direction, it has the effect that the swelling of the tire antiskid device main body can be suppressed.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 3 show a first embodiment of a tire anti-slip device according to the present invention, FIG. 1 is a partial plan view of a tire anti-slip device main body, and FIG. FIG. 3 is a view of the tire anti-skid device mounted on the tire as viewed from the outside of the vehicle, FIG. 3 is a view of the tire anti-slip device mounted on the tire as viewed from the inside of the vehicle, and FIGS. FIG. 4 is a partial plan view of a tire anti-slip device main body, and FIG. 5 is a view of a tire anti-slip device mounted on a tire as viewed from the outside of the vehicle. 6, FIG. 6 is a view of the tire anti-skid device mounted on the tire as viewed from the inside of the vehicle, FIG. 7 is a view showing a mounting state of the tire anti-slip device, and FIGS. 8 to 10 are tire anti-slip devices according to the present invention. FIG. 8 shows a third embodiment of the device, and FIG. Figure, FIG. 9 is viewed tire antiskid device mounted on a tire from the vehicle outer side direction drawing, FIG. 10 view of the tire antiskid device mounted on a tire from the vehicle inside direction, the 11
FIG. 13 to FIG. 13 show a conventional tire anti-slip device, and FIG.
The figure is a partial plan view of the tire anti-slip device body, FIG. 12 is a view of the tire anti-slip device mounted on the tire as viewed from the inside of the vehicle, and FIG. 13 is a cross-sectional view showing a mounted state of the tire anti-slip device. FIG. 14 to FIG. 17 show another conventional tire anti-slip device, FIG. 14 is a partial plan view of a tire anti-slip device main body, and FIG. FIG. 16 is a cross-sectional view showing an attached state of the tire anti-slip device, as viewed from the inside, and FIG. 17 is a view of the tire anti-slip device mounted on the tire as viewed from the vehicle outer direction. 10: anti-slip device, 12: anti-skid device, 36: mounting bracket, 37: tire, 39: rubber ring, 41: radial band, 42: rope, 42A: eye , 44 …… hook.

Claims (1)

(57) [Claims] 1. A tire anti-slip device body wound around a tire by being wound around a tire and connecting both end portions in a longitudinal direction, and a tire anti-slip device provided at an inner side portion of the tire anti-slip device body in a width direction of the vehicle. A long inner fastener for fastening the device body to the tire; a first connector provided at one end of the inner fastener and locked at one longitudinal end of the tire anti-slip device body A second connector provided at the other end of the inner fastener and locked to the other end in the longitudinal direction of the tire anti-slip device body and connected to the first connector; A plurality of mounting brackets attached from one end in the longitudinal direction to the other end in the widthwise vehicle outer side of the main body; and a ring when the tire antiskid device main body is mounted along the outer peripheral surface of the tire. Array An outer fastener which is locked to the plurality of mounting brackets and is extendable, and which elastically pulls the plurality of mounting brackets toward the tire rotation axis to tighten the tire anti-slip device body to the tire. A tire anti-skid device, characterized in that the width of both ends in the longitudinal direction of the tire anti-skid device main body is shorter than the width of an intermediate portion in the longitudinal direction of the tire anti-skid device.