JPH08142618A - Tire chain for automobile and its fitting method - Google Patents

Abstract

PURPOSE: To provide a fitting method where the tire chain can be easily fitted to a tire, no breakage is expected in the fitting work, a part of the chain can be replaced or repaired, the universality is improved and the tire chain is preferable to be fitted. CONSTITUTION: A plurality of chain bodies 4 divided along the rotational direction of a tire 2, a belt mechanism 5 which passes through a hole 11b provided in a disk part 11a of a wheel 11 to connect one end to the end side edge of the chain body 4, and to arrange the other end before the wheel 11, and a buckle mechanism 6 to connect the other end of the belt mechanism 5 to an outer plate 8 are provided. When this tire chain is fitted, the belt mechanism 5 is guided by a guide wire to pass this belt mechanism 5 through the hole 11b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile tire chain and a mounting method thereof. More specifically, the present invention relates to an automobile tire chain that can be easily mounted on a tire and a mounting method suitable for this tire chain.

[0002] In this specification, the term "tire chain" includes a non-metallic chain such as a net in addition to a chain-shaped metal chain, and is wound around a tire to prevent slipping when the vehicle is running on a snowy road. Means a tire chain.

[0003]

2. Description of the Related Art A conventional automobile tire chain is wound around a tire tread over the entire circumference thereof, and when mounted on a tire, the tire tread and side walls are wrapped so that both side edges are formed. On the other hand, the central portion is formed long. For this reason, in the undeployed deployed state, the tire has a three-dimensional rounded shape that is elongated in the tire rotation direction and that both side edges are raised with respect to the center portion in the width direction. Another type of tire chain is one in which a plurality of parts are non-detachably connected in the length direction to form one elongated tire chain as a whole, which is wound around the tire. However, even with this type of tire chain,
It becomes a long and thin tire chain, and in the undeployed deployed state, it has an elongated three-dimensional rounded shape like the aforementioned tire chain.

These tire chains can be mounted on tires without jacking up an automobile. This non-jack-up method is less labor intensive than the jack-up method and is therefore commonly used. That is, after covering the tire chain with the tire, the vehicle body is moved by a small distance so that the tire chain goes under the tire, and then both ends of the tire chain are connected to each other. Is wrapped around the entire circumference.

[0005]

However, since the above-described conventional automobile tire chain has a three-dimensional rounded shape in the deployed state, the vehicle body is moved to move the tire chain to the lower side of the tire. The tire chain easily slips from the ground contact surface of the tire when slipping into the ground. When the tire chain is misaligned, the weight of the vehicle body is naturally applied to the tires, and the tire chain cannot be pulled back manually, so it is necessary to return the vehicle body to its original position and start over. This makes the work of mounting the tire chain difficult. Further, when the tire chain is displaced, the tire may ride on the chain connecting metal fitting, which may cause damage to the connecting metal fitting.

Further, since the conventional tire chain constitutes one tire chain as a whole, even if a part of the tire chain is damaged, the whole tire chain cannot be used, and the tire chain is partially replaced or repaired. It is uneconomical because it cannot be done.

In addition, the conventional tire chain, especially the non-metallic chain, has a problem that its size is determined by the size of the tire, resulting in poor versatility.

The present invention has been made to solve these problems and is easy to mount on a tire. Therefore, there is no risk of damage during the mounting work, and part replacement or repair is possible. In addition, it is an object of the present invention to provide an automobile tire chain having excellent versatility, and an object of the present invention is to provide a method of mounting a tire chain suitable for the automobile tire chain.

[0009]

In order to achieve the above object, an automobile tire chain of the present invention is divided into a plurality of automobile tire chains along the tire rotation direction, and the rear side edge and the front side of each of them are divided. It is characterized in that the edge and the edge are connected through a hole provided in the disc portion of the wheel.

Particularly, in the automobile tire chain according to a second aspect of the invention, one end of the chain main body is passed through a plurality of chain main bodies divided along the rotation direction of the tire and holes provided in the disk portion of the wheel. Connected to the inner edge, and
It is characterized in that it is provided with a connecting member having the other end arranged in front of the wheel and a connecting means for connecting the other end of the connecting member and the front side edge of the chain body.

In this case, the connecting means includes a first member connected to either one of the connecting member and the chain body, and a plurality of fixing positions provided on the first member along the radial direction of the tire. It is desirable to include a second member that is connected to the other of the connection member and the chain body and that is attached to any one of the fixed positions of the first member.

Further, it is desirable that one end of the connecting member is connected to a guide portion provided on the inner side edge of the chain body along the tire rotation direction.

On the other hand, according to a fifth aspect of the present invention, in the method for mounting a tire chain for an automobile, the guide wire is passed through the hole of the disk portion to the inner side of the tire and then pulled out from the outside of the tire, and then connected to the guide wire. After connecting the other end of the member, while pulling back this guide wire, pass the connecting member through the hole of the disc portion from the back side of the tire, and pull out the other end of the connecting member to the front side of the wheel to connect to the connecting means. It is a feature.

[0014]

Therefore, in the automobile tire chain of the present invention, each of the plurality of divided tire chains can be independently attached to the tire. That is, in the stopped state of the vehicle, first, in a portion other than the ground contact portion of the tire
Fit the divided tire chains. Then, the vehicle is slightly moved to shift the ground contact portion of the tire, and the tire chain is attached to this portion.

In particular, in the automobile tire chain according to the second aspect, after covering the tread of the tire with a plurality of divided chain main bodies, the connecting member and the chain main body are connected by the connecting means, whereby the tire chain is formed. It is attached to the tire. Since the other end of the connecting member passes through a hole provided in the disc portion of the wheel and is arranged in front of the wheel, the work of connecting by the connecting means can be performed on the front side of the wheel.

According to the third aspect of the present invention, when the second member of the connecting means is attached to the first member, if each fixing position provided on the first member is selected, the attachment position relationship of each member is selected. Changes in the radial direction of the tire. Therefore, each chain body is mounted according to the size of the tire.

Further, in the invention according to claim 4, since one end of the connecting member is connected to the guide portion at the rear side edge of the chain body, when the one end of the connecting member is moved along this guide portion, the chain is moved. The connecting position of the connecting member with respect to the main body changes. Therefore, each chain body is mounted by moving the connecting position according to the position and shape of the wheel hole.

On the other hand, in order to mount the automobile tire chain of the present invention on a tire, the chain body is put on the tire,
The connecting member is passed through the hole of the disk portion and pulled out from the tire rear side to the front side, and the connecting member and the chain body are connected by the connecting means. In this case, in the method of mounting a tire chain for an automobile according to claim 5, the connecting member can be easily passed through the hole of the disk portion by using the guide wire, and a suitable mounting method for this tire chain is provided. .

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described in detail below with reference to the embodiments shown in the drawings.

FIG. 1 and FIG. 2 show an embodiment of an automobile tire chain to which the present invention is applied, which is a so-called close contact bending type automobile tire chain.
This automobile tire chain 1 is a so-called non-metallic chain, and is configured to include four units 3 that are equally divided along the rotation direction of the tire 2. Each unit 3 is composed of a chain body 4, a belt mechanism 5, a buckle mechanism 6 and the like. The units 3 have the same configuration. Therefore, only one unit 3 will be described in detail, and detailed description of the other units 3 will be omitted.

The chain body 4 is, for example, a polyurethane resin molded in a hexagonal pattern and has a large number of spike pins 7 embedded in predetermined positions. Chain body 4
Is set to a dimension value that is slightly shorter than the length of 1/4 of the outer peripheral length of the tire 2, and the width of the chain body 4 is set to a dimension value that is wider than the width of the tread 2a of the tire 2. ing. Therefore, when the tire body 2 is covered with the chain body 4, the chain body 4 covers approximately 1/4 of the entire tread and the radially outer portions of the sidewalls 2b and 2c in the corresponding range.

An outer plate 8 and an inner plate 9 are connected to both side edges of the chain body 4. That is, the outer plate 8 arranged along the front side wall 2b of the tire 2 and the rear side wall 2c.
For example, four hooks 10 are formed on the inner plate 9 arranged along the line. On the other hand, hook holes 4a are provided on both side edges of the chain body 4, and as shown in FIG. 3, the hook holes 4a are hooked on the hooks 10 and the hooks 10 are crushed. The chain body 4 and the plates 8 and 9 are connected by bending.

Further, each plate 8 and 9 is provided with a pair of elongated holes 8a and 9a, respectively. Each long hole 8a, 9
“A” is arranged substantially in the center in the rotation direction of the tire 2 and near the radial inner edge of the tire 2 in the rotation direction of the tire 2. An arm plate 14, which will be described later, is provided in each of the elongated holes 8 a of the outer plate 8 and each of the elongated holes 9 of the inner plate 9.
Belt mechanisms 5 are connected to a. Each long hole 8
As will be described later, a and 9 a function as guide portions that move the connecting position of the arm plate 14 and the belt mechanism 5 in the rotation direction of the tire 2. In addition, each plate 8,
9 is made of steel, for example, and has a predetermined rigidity to prevent the chain body 4 from rolling.

The belt mechanism 5 as a connecting member is composed of a first belt plate 27, a second belt plate 28 and a locking body 29. The first belt plate 27 is, for example, a thin plate made of elastically deformable spring steel, and the rim portion 11 c of the wheel 11.
It is molded into a shape that follows. In addition, the second belt plate 2
8 is made of a steel plate material, for example, and has a predetermined rigidity. The second belt plate 28 is used for the disc portion 11
It is formed in a shape along the outer peripheral portion of a. One end of the second belt plate 28 is fixed to the other end of the first belt plate 27, so that each belt plate 27, 28 constitutes one belt.

One end of the belt mechanism 5 is connected to the inner plate 9. More specifically, the pair of hooks 3 is provided at one end of the belt mechanism 5, that is, at one end of the first belt plate 27.
0 is integrally formed. Each of these hooks 30,
It is hooked in each long hole 9a of the inner plate 9 and bent to prevent it from falling off. Further, as shown in FIG. 4, the length of the hook 30 in the tire rotation direction is the long hole 3
It is set shorter than the length of 0. Therefore, each hook 30 can move in each elongated hole 9 a, and the position of the belt mechanism 5 with respect to the inner plate 9 can be set to the tire 2.
The distance L can be adjusted in the rotation direction of.

The belt mechanism 5 includes a wheel 11
Through the hole 11b provided in the disc portion 11a, and the other end, that is, the other end of the second belt plate 28, is arranged on the front side of the disc portion 11a of the wheel 11. The locking body 29 is attached to the other end of the second belt plate 28. As shown in FIGS. 5 and 6, the locking body 29 is composed of a fixing piece 31 and a locking piece 32.
1 and the locking piece 32 each have a substantially cubic shape. The fixing piece 31 is fixed to the other end of the second belt plate 28, and a screw hole 31a is provided along the axial direction of the second belt plate 28.

On the other hand, grooves 32a are formed on both sides of the locking piece 32, respectively. Each groove 32a is formed in a direction perpendicular to the second belt plate 28, that is, along the radial direction of the tire 2. Further, the locking piece 32 has a threaded portion 3
3 is attached. This screw portion 33 is a fixing piece 31.
And is inserted into the screw hole 31a. That is, the locking piece 32 is connected to the fixing piece 31 with a screw structure. When the locking piece 32 is connected to the fixed piece 31, a gap is formed between the pieces 31 and 32 or the width of this gap is changed by changing the screwing amount of the screw portion 33 into the screw hole 31a. The length of the locking body 29 as a whole can be adjusted.

The buckle mechanism 6 as a connecting means is composed of a support plate (first member) 12, a rotating plate (second member) 13, an arm plate 14 and the like. The support plate 12 is in the shape of a strip and extends along the radial direction on the surface of the wheel 11, with one end located radially outside the wheel 11 and the other end located radially inside. The support plate 12 is bridged over the disc portion 11a and the rim flange portion 11d and straddles the hole 11b. The support plate 12 has a hook hole 15, a plurality of cut and raised pieces 16,
A protrusion 17 is provided.

The hook hole 15 is provided at a substantially central portion of the support plate 12, that is, at a position facing the hole 11b of the disk portion 11a. This hook hole 15 is used for the support plate 12.
Is formed long along the longitudinal direction. Further, the hooking hole 15 has a substantially T-shaped shape in which the other end side portion 15b is set to be thinner than the one end side portion 15a with a step.
Both sides of the other end side portion 15b of the hooking hole 15 are recessed as compared with other portions of the support plate 12, and the pair of hooking portions 18 are provided.
Is composed. Therefore, the locking body 2 of the belt mechanism 5
When the locking piece 32 of No. 9 is inserted into the one end side portion 15a of the hook hole 15 and then slid to the other end side portion 15b, the locking piece 3
Each groove 32a of No. 2 fits in each hooking part 18. Therefore, the locking body 29 of the belt mechanism 5 is connected to the support plate 12 without rattling. In this state, since each hook portion 18 is recessed, the locking body 2
9 does not protrude beyond the surface of the support plate 12.

The cut-and-raised pieces 16 are provided on both side edges of the support plate 12 at predetermined intervals from one end side, for example, three pieces each. Each cut-and-raised piece 16 is formed by cutting and raising the side edge of the support plate 12 toward the radially outer side of the wheel 11. Each of the cut-and-raised pieces 16 is used at the same time with the opposite ones on both sides of the support plate 12 as one set, and therefore the support plate 12 has three sets of the cut-and-raised pieces 16. The cut-and-raised pieces 16 of each set determine the fixed position of the rotary plate 13 with respect to the support plate 12. Therefore, the support plate 12 has three fixed positions arranged in the radial direction of the wheel 11.

On the other hand, the protruding portion 17 is provided near the other end of the support plate 12. The projecting portion 17 is formed in, for example, a quadrangular prism shape, and a pin hole 17a penetrating in the width direction of the support plate 12, that is, the rotation direction of the wheel 11 is provided at the center position in the height direction.

The rotating plate 13 is in the form of a strip that is slightly thinner than the supporting plate 12, and the supporting plate 12
Are overlaid on. The rotating plate 13 is provided with a pair of shafts 19 and elongated holes 20. Each shaft 19 is provided on both side surfaces of one end of the rotating plate 13. Each shaft 19 is hooked on a set of cut and raised pieces 16 of the support plate 12 from the radially inner side of the wheel 11. In this state, the rotating plate 13 can rotate around the shafts 19 toward the support plate 12 side.

On the other hand, the long hole 20 is provided in the other half of the rotary plate 13. The elongated hole 20 extends along the longitudinal direction of the rotating plate 13 and is formed over a range corresponding to the range in which the raising pieces 16 of the support plate 12 are formed. Therefore, even if each shaft 19 is hooked on any one of the pulling pieces 16,
The protruding portion 17 is inserted into the elongated hole 20. Then, after superposing the rotating plate 13 on the support plate 12,
When the split pin 21 is inserted into the pin hole 17 a of the protrusion 17, the rotating plate 13 is fixed to the support plate 12.

The split pin 21 has a wedge-shaped portion 21.
a and a step portion 21b are formed. Therefore, when the split pin 21 is inserted into the pin hole 17a, the wedge-shaped portion 21a hits the pin hole 17a and the diameter of the tip end thereof is reduced, so that the split pin 21 can be smoothly inserted into the pin hole 17a. Then, when the wedge-shaped portion 21a passes through the pin hole 17a, the diameter of the tip of the split pin 21 increases and the stepped portion 21b.
Supports the outside of the pin hole 17a. This prevents the split pin 21 from falling off.

A pair of hooks 33 are integrally formed on the base end of the arm plate 14. Each hook 33 is
The outer plate 8 is hooked on each of the elongated holes 8a and bent to prevent it from falling off. The length of each hook 33 in the tire rotation direction is set shorter than the length of each long hole 8a. Therefore, each hook 33 has a similar shape to that of the hook 30 and the slot 9a shown in FIG.
The position of the arm plate 14 with respect to the outer plate 8 can be adjusted by the distance L in the rotation direction of the tire 20.

The tip of the arm plate 14 is shown in FIG.
As shown in FIG. 5, the rotary plate 13 is connected to a substantially central position through a shaft 23. This arm plate 1
4 has a center portion curved in a direction away from the rotating plate 13 to avoid interference with the rotating plate 13. When the rotating plate 13 is rotated around each shaft 19, the arm plate 14 is pulled by the rotating plate 13 to move the outer plate 8 to the inside of the wheel 11 in the radial direction, and the chain body 4 is moved to the tire. It adheres to the tread 2a of No.2. In addition, each of the above-mentioned plates 8,
The corners 9 and 12 to 14 are chamfered to prevent damage to the tire 2 and the wheel 11 made of rubber.

The other unit 3 of the tire chain 1
Is also configured similarly to the unit 3 described above.

Next, a method of mounting the tire chain 1 will be described. In this tire chain 1, each unit 3 is mounted one by one independently in order. First, the three units 3 are mounted on the tire 2 except for the ground contact portion while the vehicle is stopped. Each unit 3 is attached to the tire 2 as follows.

First, the guide wire 24 is prepared. The guide wire 24 is bent and inserted from the front side of the wheel 11 into the hole 11b of the disc portion 11a. And
An operator turns the hand from the outside of the tire 2 to the inner side to grasp the tip of the guide wire 24, and pulls out the guide wire 24 from the outside of the tire 2.

Next, the tip of the guide wire 24 is connected to the locking body 29 of the belt mechanism 5. In this case, as shown by the chain double-dashed line in FIG. 5, the folded portion of the guide wire 24 is wound around and connected to each groove 32a of the locking piece 32 of the locking body 29. Then, the guide wire 24 is pulled back while feeding the inner plate 9 to the back side of the tire 2 and at the same time covering the chain body 4 on the tread 2a of the tire 2. Thereby, the inner plate 9 is the sidewall 2c on the back side of the tire 2, the chain body 4 is the tread 2a, and the outer plate 8 is the sidewall 2b on the front side of the tire 2.
Cover each. At this time, the chain main body 4 is slightly displaced to the inner side of the tire 2 from the mounting position, and the inner plate 9 is biased downward to facilitate the subsequent mounting work.

After that, the guide wire 24 is removed from the locking body 29, and the locking body 29 is inserted into the one end side portion 15a of the hook hole 15 while bridging the support plate 12 between the disc portion 11a and the rim flange portion 11d. , And slide to the other end side portion 15b. As described above, by biasing the inner plate 9 downward, the locking body 29
Can be easily inserted into the hook hole 15. In this state, when the chain main body 4 which is biased to the back side of the tire 2 is pulled out to the front side, the belt mechanism 5 is pulled to the back side of the tire 2, and the support plate 12 is moved to the disc portion 11a and the rim flange portion 11d. attract.

Next, the buckle mechanism 6 is connected. That is, after each shaft 19 of the rotating plate 13 is hooked on each cut-and-raised piece 16 of the set of the supporting plate 12, the rotating plate 13 is rotated around each shaft 19 and is superposed on the supporting plate 12. To match. By stacking the rotation plate 13 on the support plate 12, the arm plate 1
4 pulls the outer plate 8 inward of the tire 2 in the radial direction, and the chain body 4 comes into close contact with the tread 2 a of the tire 2. At the same time, since the belt mechanism 5 is pulled to the inner side of the tire 2, the locking body 29 does not shift to the one end side portion 15a of the hook hole 15, and therefore the belt mechanism 5 is disengaged from the support plate 12. Never. Further, the belt mechanism 5 includes a rim portion 11c and a disc portion 11a.
Has a shape along the inner peripheral surface of the. Therefore, the belt mechanism 5 does not overlap the inner peripheral surfaces of the rim portion 11c and the disc portion 11a and does not interfere with the brake device or the suspension device.

Then, after the rotating plate 13 is superposed on the support plate 12, the split pins 21 are inserted into the pin holes 17a of the projecting portion 17 to fix them. The worker can perform the work of connecting the buckle mechanism 6 and the work of fixing it with the split pin 21 on the front side of the wheel 11.

When mounting the unit 3 in this way,
The locking piece 29 of the belt mechanism 5 and the buckle mechanism 6 function as an adjuster. That is, by changing the screwing amount of the screw portion 33 of the locking body 29, the length of the locking body 29 as a whole can be adjusted. In addition, by selecting each cut-and-raised piece 16 that hooks each shaft 19 of the rotating plate 13,
The fixed position of the rotating plate 13 with respect to the support plate 12 can be adjusted in the radial direction of the tire 2. That is, the entire length of the locking body 29 is adjusted according to the size of the tire 2 to be mounted,
Further, by selecting a set of cut-and-raised pieces 16 suitable for the size of the tire, the unit 3 can be properly mounted on many types of tires 2.

By repeating the above procedure, the three units 3 are sequentially mounted on the portion of the tire 2 excluding the ground contact portion.
After that, the automobile is moved, and the grounded portion of the tire 2 is displaced to move the portion not equipped with the unit 3 to the upper side of the tire 2. Then, the above procedure is repeated and the fourth unit 3 is mounted on the tire 2, whereby the mounting work of the tire chain 1 is completed.

The distance between the units 3 of the mounted tire chain 1 changes according to the size of the tire. That is, in the tire chain 1, the distance between the units 3 increases or decreases according to the size of the outer diameter of the tire 2, and the difference in the diameter is absorbed. In addition, the buckle mechanism 6 is adjusted by adjusting the fixing position of the rotating plate 13 with respect to the support plate 12.
The length of the belt mechanism 5 changes by adjusting the length of the entire locking body 29, and the difference in the thickness of the tire 2 is absorbed. Therefore, the tire chain 1 can be properly attached to many types of tires 2.

Further, for each unit 3, each plate 8,
The positions of the arm plate 14 and the belt mechanism 5 can be adjusted by the distance L in the rotation direction of the tire 2 with respect to 9. Therefore, even when the number of holes 11b provided in the disk portion 11a of the wheel 11 is different, the position, the shape, etc., the tire chain 1 can be properly mounted.

While the automobile is running, centrifugal force acts on the tire chain 1, but the split pin 2 penetrating the protrusion 17 is formed.
The unit 1 fixes the rotating plate 13 to the support plate 12, so that each unit 3 does not come off from the tire 2. Further, since the split pin 21 is inserted in the rotational direction of the tire 2, it cannot be removed by centrifugal force. Further, when one unit 3 is damaged by traveling of the automobile, only the damaged unit 3 needs to be replaced and repaired, and the other three units 3 can be continuously used.

Next, the case where the tire chain 1 is removed from the tire 2 will be described. Also in this case, each unit 3 is removed one by one. First, the split pin 21 of the unit 3 is pulled out from the protruding portion 17. Then, the rotating plate 13 is separated from the support plate 12 while rotating around each shaft 19. As a result, the arm plate 14 moves to the outside in the radial direction of the wheel 11, and the chain body 4, the belt mechanism 5, etc. loosen. Therefore, the locking body 29 of the belt mechanism 5 is
Get out of. After that, the chain body 4 and the like are pulled out and removed from the tire 2. Similarly, the other unit 3 is also removed from the tire. In this case, in order to remove the unit 3 under the tire 2, the vehicle is slightly moved to move the unit 3 to the upper side of the tire 2, and thereafter, the unit 3 is similarly removed from the tire 2.

The above-described embodiment is an example of a preferred embodiment of the present invention, but the present invention is not limited to this, and various modifications can be made without departing from the gist of the present invention. For example, in the present embodiment, the tire chain 1 is divided into four along the rotation direction of the tire 2, that is, the tire chain 1 is composed of four units 3. However, the present invention is not limited to this, and the tire chain 1 is divided into two. The configuration may be divided into three or five or more.

In this embodiment, three sets of cut-and-raised pieces 16 are provided on the support plate 12, and the fixing position of the rotary plate 13 with respect to the support plate 12 is adjusted in three steps. The number of groups provided with is not limited to this.

In the present embodiment, the chain body 4 is molded from polyurethane resin, but the material is not limited to this, and it may be applied to so-called rubber chains or steel chains.

In the present embodiment, the case where the chain main body 4 having the hexagonal pattern is applied has been described.
It may be applied to the net pattern-shaped chain main body 27 shown in FIG. 8 and the lattice pattern-shaped chain main body 28 shown in FIG. 8, and the shape of the chain main body 4 is not particularly limited.

Further, in the present embodiment, the case where the belt mechanism 5 as the connecting member is provided with the belt plates 27 and 28 has been described, but the structure of the connecting member is not limited to this. For example, the connecting member may be configured by a wire or the like. When the connecting member is composed of wires,
Since the stretched wire does not follow the inner peripheral surface of the rim, care must be taken to avoid interference with the brake device, suspension, etc.
Further, in the present embodiment, the case where the metal belt mechanism 5 is used as the connecting member has been described, but the material of the connecting member is not limited to this, and for example, the connecting member is formed of rubber or the like. Is also good. In this case, pay attention to ensuring tensile strength and protection from damage.

In the present embodiment, the plate-shaped outer plate 8 and inner plate 9 are connected to the chain body 4,
Although the chain body 4 is prevented from curling, rod-shaped members may be used instead of the plate-shaped plates. In addition, in this embodiment, the split pin 2 is attached to the protrusion 17.
Although the rotating plate 13 is fixed to the support plate 12 through the pin 1, the split pin 21 may be replaced with a taper pin, a spring pin, a cotter, a C-shaped clip, or the like. Further, instead of using the split pin 21 or the like for each unit 3, as shown in FIG. 9, each protrusion 1 of the four units 3 is used.
A rubber ring 26 may be stretched around 7 to fix the rotating plates 13 of the four units 3 at the same time.

Further, in this embodiment, the arm plate 1
Each hook 33 provided at the base end of the outer plate 8
After being hooked in each of the long holes 8a of
Although each hook 33 is configured to prevent the hooks 33 from falling out of the elongated holes 8a, for example, as shown in FIG.
The leaf springs 34 for preventing falling may be fixed to the respective parts 3. That is, the leaf spring 34 fixed to the arm plate 14 reaches the back side of the tip of the hook 33. When the tip of the hook 33 is inserted into the elongated hole 8a of the outer plate 8, the leaf spring 34 is elastically deformed inward of the hook 33 as shown by a two-dot chain line in the figure. And
When the hook 33 is inserted to the predetermined position, the leaf spring 34 returns to its original position and prevents the hook 33 from falling out of the elongated hole 8a. On the other hand, the hook 33 is attached to the long hole 8a.
To remove the hook 33, the hook 33 may be pulled out from the elongated hole 8a while the leaf spring 34 is being bent. When the connecting portion between each hook 33 and each elongated hole 8a is configured as described above, the arm plate 14 can be attached to and detached from the outer plate 8, which is convenient when the tire chain 1 is stored. . Similarly, when each hook 30 provided on the first belt plate 27 of the belt mechanism 5 is connected to each long hole 9a of the inner plate 9, a leaf spring is used to prevent the hook 30 from falling off. May be. Also in this case, the belt mechanism 5 can be attached to and detached from the inner plate 9, which is convenient for housing the tire chain 1.

[0057]

As described above, in the automobile tire chain of the present invention, the automobile tire chain is divided into a plurality of parts along the rotation direction of the tire, and the rear side edge and the front side edge of each are divided into wheels. It is characterized in that the connection is made through a hole provided in the disc portion. Therefore, each of the divided tire chains can be independently attached to the tire, and unlike the conventional art, it is not necessary to wind one long and round tire chain around the tire at a time, Therefore, the work of mounting the tire chain becomes easy. Further, as a result, unlike the conventional tire chain, there is no risk of trampling the connecting fitting with the tire, and damage to the tire chain can be prevented. Further, since the tire chain is divided into a plurality of parts, if a part of the tire chain is damaged, only this part needs to be replaced or repaired, and other parts can be continuously used, which is economical.

In particular, the automobile tire chain according to claim 2 has a plurality of chain main bodies divided along the tire rotation direction and one end of the chain main body passing through the holes provided in the disk portion of the wheel. Connected to the inner edge, and
The connecting member has the other end arranged in front of the wheel, and the connecting member connects the other end of the connecting member and the front side edge of the chain body. Therefore, the connecting member and the chain main body can be connected by the connecting means, and the work of mounting the chain main body on the tire becomes easier.

In this case, the connecting means includes a first member connected to either one of the connecting member and the chain main body, and a plurality of fixing positions provided on the first member along the radial direction of the tire. , A connecting member and a chain body, and a second member attached to any one of the fixed positions of the first member and connected to the other of the connecting member and the chain main body. It is possible to adjust the radial length of the tire. Therefore, by adjusting this length according to the size of the tire, it is possible to adapt to many types of tires, and the versatility of the tire chain is improved.

Further, by connecting one end of the connecting member to a guide portion provided on the inner side edge of the chain main body along the tire rotating direction, the connecting position of the connecting member and the chain main body is set in the tire rotating direction. It becomes possible to adjust. Therefore, by adjusting this position according to the position, shape, etc. of the hole provided in the disc portion of the wheel, it can be applied to many types of discs, and the versatility of the tire chain is further improved.

Further, in the method of mounting a tire chain for an automobile according to claim 5, the connecting member can be easily passed through the hole of the disk portion by using the guide wire.
Therefore, the work of mounting the tire chain is further facilitated, and the mounting method suitable for the tire chain of the present invention can be provided.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of an automobile tire chain to which the present invention is applied.

FIG. 2 is a side view of a tire equipped with the automobile tire chain of FIG.

FIG. 3 is an exploded perspective view showing a connecting portion related to an outer plate of the automobile tire chain of FIG.

FIG. 4 is a front view showing a connection portion between an inner plate and a first belt plate of the automobile tire chain of FIG.

5 is a side view showing a locking piece of the belt mechanism of the automobile tire chain of FIG.

6 is an exploded perspective view showing a buckle mechanism of the automobile tire chain of FIG. 1. FIG.

FIG. 7 is a perspective view showing another embodiment of the chain body of the automobile tire chain to which the present invention is applied.

FIG. 8 is a perspective view showing still another embodiment of the chain body of the automobile tire chain to which the present invention is applied.

FIG. 9 is a side view of a tire equipped with the tire chain according to another embodiment of the present invention, to which the present invention is applied.

FIG. 10 is a cross-sectional view showing another embodiment of the connecting portion between the outer plate and the arm plate of the automobile tire chain to which the present invention is applied.

[Explanation of symbols]

 1 Tire Chain 2 Tire 3 Unit 4, 27, 28 Chain Main Body 5 Belt Mechanism 6 Buckle Mechanism 11 Wheel 11a Disk Part 11b Hole 12 Support Plate 13 Rotating Plate 14 Arm Plate 16 Pulling Piece 24 Guide Wire

Claims (5)

[Claims] 1. An automobile tire chain is divided into a plurality of parts along a tire rotation direction, and a rear side edge and a front side edge of each of them are connected through a hole provided in a disk portion of a wheel. Car tire chains 2. A plurality of chain bodies divided along the direction of rotation of the tire and a hole provided in a disc portion of the wheel, one end of which is connected to a rear side edge of the chain body,
2. A tire chain for an automobile according to claim 1, further comprising a connecting member having the other end arranged in front of the wheel, and a connecting means for connecting the other end of the connecting member and a front side edge of the chain body. . 3. The connecting means comprises a first member connected to any one of the connecting member and the chain main body, and a plurality of fixing positions provided on the first member along the radial direction of the tire. And a second member connected to the other of the connection member and the chain body and attached to any one of the fixed positions of the first member. The automobile tire chain according to claim 2. 4. The automobile tire according to claim 2, wherein one end of the connecting member is connected to a guide portion provided on a rear side edge of the chain body along the tire rotation direction. chain. 5. A guide wire is passed through the hole of the disk portion to the inner side of the tire and then pulled out from the outside of the tire. Then, the other end of the connecting member is connected to the guide wire, and then the guide wire is connected. 5. The connecting member is passed through the hole of the disc portion from the back side of the tire while pulling back the wheel, and the other end of the connecting member is pulled out to the front side of the wheel to be connected to the connecting means.
The method for mounting the automobile tire chain according to any one of 1.