JP2002127720A - Tire chain for motorcar - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tire chain for a motorcar which can be attached on a tire with an simple operation and also keep a good wearing nature against the tire. SOLUTION: For a side material 11 for an inner wheel of a tire, a wire or a rope capable of bending is used and constituted as much as the length in attaching to the tire, and a side material 12 for an outer wheel of the tire is constituted by multiple side constitutional materials 13 and the length of that is organized substantially equal to the length in clamping on the tire. Each side constitutional material is produced by an elastic material and the side material for the outer wheel of the tire is connected with a pair of a clamping arms 21, 22 and a clamping plate 20 and the clamping plate is rotated to draw both ends of the side material and secure a prescribed clamping force by the side material on the outer wheel side of the tire.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire chain for an automobile, and more particularly to a tire chain having excellent mountability and operability to a tire.

[0002]

2. Description of the Related Art When traveling on snowy or frozen roads, a tire chain or a non-slip device is mounted on a tire to prevent a slip accident and to ensure traveling safety.

[0003] Usually, in this type of tire chain, a system in which a plurality of chains are laid in a ladder shape, an X shape, or another pattern shape between a pair of side members made of a chain is generally used (Japanese Utility Model Application). No. 55-134308, Japanese Utility Model Application Laid-Open No. 61-88806, Japanese Utility Model Application Laid-Open No. 62-1
No. 7404, Japanese Utility Model Laid-Open No. 02-54607, Japanese Utility Model Laid-Open No. 03-76702, Japanese Utility Model Laid-Open No. 04-113203.
And Japanese Utility Model Laid-Open No. 05-32010, etc.).

On the other hand, in a non-slip device, a ladder type system in which a plurality of non-slip bands are attached at a predetermined interval between a pair of side members (for example, Japanese Utility Model Application Laid-Open No. 59-18 / 1984).
No. 0904, Japanese Utility Model Application Laid-Open No. 59-165206, Japanese Utility Model Application Laid-Open No. 61-161006, etc.), and a plurality of synthetic resin (or rubber) nets having a repetitive net pattern are arranged in the longitudinal direction. (See Japanese Patent Application Laid-Open Nos. 60-22507 and 61-3).
No. 0522, Japanese Utility Model Laid-Open No. 1-60904, Japanese Utility Model Laid-Open No. 2-66304, Japanese Utility Model Laid-Open No. 2-77110,
See Japanese Utility Model Laid-Open Publication No. 3-94307, etc.).

[0005] Since the above-mentioned tire chain is constituted by using a chain, it can be folded small and has the advantage of taking up less storage space than a non-slip device. The fact is that it has become widespread.

[0006]

However, in the conventional tire chain, the tire chain is put on the tire tread,
After connecting the ends of the side members on both sides to form a ring, it is necessary to pull the side member on the outer ring side toward the center of the tire with an elastic band or rope and tighten it. While the tightness between the tire and the outer circumference of the tire cannot be ensured, there is a concern that the tire chain will lift due to centrifugal force.However, setting a strong tightening force is extremely troublesome for women and elderly people and other weak people. There was a problem that is.

In view of the foregoing, it is an object of the present invention to provide a tire chain for an automobile which can be mounted on a tire by a simple operation, and which can ensure excellent mountability to the tire.

[0008]

SUMMARY OF THE INVENTION Accordingly, an automobile tire chain according to the present invention is constructed by extending a plurality of chains between a pair of chain side members, covering the tire tread, and attaching the pair of side members. In the automobile tire chain in which the annular side member on the tire outer ring side is tightened by an elastic band or a rope after being connected annularly with the connecting tools at both ends, the side member on the tire inner ring side may be a bendable wire or The length of the side member on the tire outer ring side is configured to be substantially equal to the length of the side member at the time of tightening by connecting a plurality of side component members to each other with a connecting member. Is composed of
Each of the plurality of side components is manufactured using an elastic material capable of exerting a predetermined tightening force, while one end of the first or second tightening arm is provided at one end of the side member on the tire outer ring side. Is rotatably supported, and one end of a second or first tightening arm is provided so as to be rotatably and detachably locked to the other end of the side member on the tire outer wheel side, The other ends of the second tightening arms are rotatably supported on both sides of the tightening plate, and the tightening plate is rotated about its center so that both ends of the side member on the tire outer wheel side are rotated. The part is drawn toward the tightening plate, and the side member on the tire outer wheel side exerts a predetermined tightening force.

One of the features of the present invention is that the side member on the tire outer ring side of the tire chain is made of an elastic material, and the side member on the tire outer ring side is annularly connected by a tightening plate and a tightening arm. In this case, both ends of the side member on the tire outer wheel side are drawn, and the side member is tightened by the elasticity of the side member.

[0010] Thus, the tightening plate can be rotated by using an appropriate jig, and there is no need to use an elastic band or a rope as in the related art. Can be mounted on tires. In addition, since a desired tightening force is obtained by the elasticity of the outer ring side member, the tire chain does not rise from the tire due to the centrifugal force during traveling, so that reliable mounting can be guaranteed.

The side component on the tire outer ring side may be made of an elastic material capable of exerting a predetermined tightening force, and may be made of, for example, rubber. However, considering durability, a synthetic resin material, for example, It is good to manufacture using urethane.

The first and second tightening arms and the tightening plate are provided between both ends of the outer ring side member, but with a large tire diameter, a predetermined tightening force is provided only by the set of the first and second tightening arms and the tightening plate. In some cases, a large force is drawn between both ends of the outer ring side member in order to ensure the above, and in such a case, a large force may be required to rotate the tightening plate. Therefore, it is preferable that at least one of the connecting members forming the tire outer wheel side is formed of the first and second tightening arms and the tightening plate.

That is, at least one of the connecting members constituting the tire outer ring side is constituted by first and second tightening arms and a tightening plate, and one end of the first or second tightening arm is adjacent to one side. One end of the second or first clamping arm is rotatably supported at an end of the component and is provided so as to be rotatably and detachably locked to an end of the other adjacent side component. The other end of each of the first and second tightening arms is rotatably supported on both sides of the tightening plate, and the tightening plate is rotated about its center to form a pair of side components. May be drawn toward the clamping plate.

When mounting a tire chain on a tire, the tire is lifted off the ground using a jack.
After inserting the tire chain under the tire and covering it over the outer circumference of the tire, lower the tire, or spread the tire chain on the ground, move the car and ride the tire on the tire chain, Must be worn over tires.

On the other hand, when a plurality of sets of the first and second tightening arms and the tightening plates are employed, one of the tightening arms is removed from the intermediate set so that the tire chain is sandwiched from the inside of the tire with the ground contact portion of the tire tread. By turning and locking the tightening arm to the end of the side component on the outer wheel side of the tire, the non-slip body can be mounted on the tire without using a jack or moving the automobile.

A plurality of chains between a pair of side members may extend in the width direction and may be bridged. However, when the tire chain is mounted on the tire by the above-described method, the plurality of chains are connected to one chain by the width. If a plurality of chains are repeatedly extended in a direction and formed in a deformed lateral H-shape in which the center is narrowed at the side of the one chain, the chain is repeatedly wound between a pair of side members. A space for sandwiching the grounding portion can be secured, and mounting workability can be further improved.

Moreover, of the chains of the deformed lateral H-shaped portion, the chains extending in the rotation direction are subjected to the tire centrifugal force and the ground resistance, and the chains extending in the width direction of the chains of the deformed lateral H-shaped portion are prevented from floating. Work
Thereby, the lifting of the tire chain can be more reliably prevented.

The relative positions of the tightening plate and the tightening arm are stable in the tightened state of the tire chain on the tire outer wheel side, and the reverse rotation of the tightening plate due to an impact during traveling is unlikely to occur. It is desirable. Therefore, it is preferable to provide the locking plate with a locking projection which abuts on the first or second tightening arm to prevent the tightening plate from rotating in the reverse direction. The lock projection may be in contact with either one of the first and second tightening arms, or may be in contact with both.

Furthermore, on a frozen road or a snowy road, the surrounding air temperature is low, and it is desirable that the tightening plate can be easily rotated and the tire chain can be mounted on the tire in a short time. Therefore, a pair of operation holes are formed in the tightening plate at positions symmetrical with respect to the center of rotation, and a pair of projections of an operating jig are fitted into the pair of operation holes so that the tightening plate can be rotated. Good to do.

The materials of the tightening plate and the first and second tightening arms are not particularly limited, and can be made of a metal material or a synthetic resin material.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to specific examples shown in the drawings. 1 to 4 show a preferred embodiment of an automobile tire chain according to the present invention. In the figure, a tire chain 10 is configured by bridging a metal chain 13... In a predetermined pattern between a pair of side members 11 and 12.

The side member 11 on the inner wheel side of the tire is formed by covering a bendable metal wire with a synthetic resin tube on its outer periphery, and its length is set to the length when the tire chain 10 is mounted on the tire. ing.

The side member 12 on the tire outer wheel side is constituted by connecting four side members 13... Two by two with metal rings (connecting members) 14. Each of the four side members 13... Is made of an elastic urethane material capable of exerting a predetermined tightening force.

Male and female connection fittings 15 and 16 are fixed to the end of the side member 11 on the inner wheel side of the tire.
5 and 16 can be inserted into each other so as to be connected in a ring shape.

On the other hand, one end of a first tightening arm 21 is rotatably connected to one end of the side member 12 on the tire outer wheel side, and the other end of the first tightening arm 21 has a substantially square tightening plate. 20 is rotatably supported on one side of the clamping plate 20 and a second side is
The other end of the tightening arm 22 is rotatably supported. One end of the second tightening arm 22 is rotatably and detachably locked to the other end of the side member 12 on the tire outer wheel side.

A lock projection 23 is formed at the end of the clamping plate 20 to protrude. The locking projection 23 is rotated in the reverse direction of the clamping plate 20 when the first and second clamping arms 21 and 22 are pulled. Occasionally, it comes into contact with the first tightening arm 21 to prevent the tightening plate 20 from rotating in the reverse direction.

Further, a pair of operation holes 24, 24 are formed in the tightening plate 20 at positions symmetrical with respect to the center of rotation, and a pair of projections 31 of the operation jig 30 shown in FIG.
31 into the operation holes 24, 24, and tighten the tightening plate 2.
0 can be rotated.

One of the opposing side members 13 between the two pairs of side members 13, 13 and 13, 13.
One end of a first tightening arm 21 is rotatably connected to an end of the first tightening arm 21. The other end of the first tightening arm 21 is rotatably supported on one side of the substantially rectangular tightening plate 20. The other end of the second clamping arm 22 is rotatably supported on the other side of the clamping plate 20.

One end of the second tightening arm 22 is
It is provided so as to be rotatably and detachably locked to the end of the other side component 13 opposite to the pair of side components 13, 13 and 13. In addition,
One end of the second tightening arm 22 may always be locked.

A lock projection 23 is formed at the end of the tightening plate 20 so as to protrude. When the first and second flexible projections 16 and 17 are pulled, the lock projection 23 is moved upward. First tightening arm 2 during reverse rotation
1 to prevent reverse rotation of the fastening plate 20.

Further, a pair of operation holes 24, 24 are formed in the tightening plate 20 at positions symmetrical with respect to the center of rotation, and a pair of projections 31, 24 of the operation jig 30 shown in FIG.
31 into the operation holes 24, 24, and tighten the tightening plate 2.
0 can be rotated.

A single chain 18 extends in the width direction between the pair of side members 11 and 12, and a plurality of chains 18 are arranged at the center of the side of the single chain 18. It is repeated over a pattern formed in a narrowed deformed horizontal H shape.

When the tire chain 10 is mounted on a tire, the two second tightening arms 22
Remove from 3, 13 and open the tire chain 10 left and right,
By turning the tire tread so as to sandwich it from the inside of the tire 40, the tire chain 10 can be set below the tire 40 without using a jack or moving the automobile.

Thereafter, the tire chain 10 is connected to the tire 40
However, since the tire chain is used, the tire tread can be lightly covered.

Next, a hand is put on the inner wheel side of the tire 40,
The male and female connecting fittings 15 and 16 of the side member 11 are inserted into each other and connected in a ring shape. On the other hand, on the outer ring side of the tire 40, the tip of the second tightening arm 22, 22 is hooked on the end of the opposing side component member 13, 13 on the outer ring side of the tire, so that the side member 12 on the tire outer ring side is also connected in a ring shape.

At this time, the first and second tightening arms 21
The second clamping arms 22, 22 can be lightly hooked to the ends of the side components 13, 13 because the 22 is not drawn toward the clamping plate 20.

In this way, the tire chain 10 is
When the operation jig 30 is put on the outer periphery of the clamping plate 20, the pair of projections 31, 31 are inserted into the pair of operation holes 24, 24 of the tightening plate 20, and the operation jig 30 is inserted into the operation jig 30 in FIG. When the twisting plate 20 is twisted in the direction of arrow A, the tightening plate 20 rotates about the center of rotation, and the inner ends of the first and second tightening arms 21 and 22 are relatively fixed to the tightening plate 2.
While rotating around the center of 0, it is drawn to the center as shown by the arrow B in FIG.

When the tightening plate 20 is in the state shown in FIG. 3B, the first and second tightening arms 21 and 22 are completely drawn, and the side member 12 on the tire outer wheel side is extended accordingly. As a result, an elastic force required for tightening the tire chain is exerted, and the side member 12 on the tire outer wheel side is tightened. As a result, the tire chain 10 does not rise during traveling.

When the tire chain 10 is removed, the reverse operation may be performed. However, when the tightening plate 20 rotates in the reverse direction, the first tightening arm 21 moves over the lock projection 23.

FIGS. 5 and 6 show the second and third embodiments, in which the same reference numerals as in FIGS. 1 to 3 indicate the same or corresponding parts. In the second embodiment, a pair of side members 1
A chain 18 is arranged between the first and second ladders.

In the third embodiment, a pair of side members 1
., A single chain 18 is extended in the width direction, and a plurality of chains 18
.. Are repeated over an X-shaped pattern on the side of the single chain 18.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a mounted state of a tire chain for an automobile according to the present invention on a tire of a preferred embodiment.

FIG. 2 is a diagram showing an overall configuration of the embodiment.

FIG. 3 (a) before tightening and after tightening in the above embodiment.
It is a figure which shows the relationship of the fastening plate and the fastening arm of (b).

FIG. 4 is a perspective view showing an operation jig for the tire chain.

FIG. 5 is a diagram showing a second embodiment.

FIG. 6 is a diagram showing a third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Tire chain 11 Tire inner wheel side member 12 Tire outer wheel side member 13 Side component member 14 Metal ring (connecting member) 20 Tightening plate 21 First tightening arm 22 Second tightening arm 23 Lock projection 24 Operation hole 30 Operation Jig 31 Projection 40 Tire

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B60C 27/12 B60C 27/12 Z (71) Applicant 597147016 Toru Sato 1-33-36 Higashi Tsujii, Himeji City, Hyogo Prefecture (72) Kuniharu Nimura, 1-8-8, Tsutsujigaoka, Tarumizu-ku, Kobe City, Hyogo Prefecture (72) Koji Sugai 2-24 Yakuracho, Shikarima-ku, Himeji City, Hyogo Prefecture

Claims (6)

[Claims] 1. A structure in which a plurality of chains are stretched between a pair of side members made of a chain, the chain is put on a tire tread, and the pair of side members is connected in a ring shape by connecting members at both ends. In the automobile tire chain in which the annular side member on the tire outer ring side is tightened, the side member on the tire inner ring side is configured to have a length at the time of mounting the tire using a bendable wire or rope. The side member on the outer ring side has a length substantially equal to the length of the side member at the time of tightening by connecting a plurality of side members to each other with a connecting member, and the plurality of side members have a predetermined tightening force. The first or second end of the side member on the tire outer ring side is made of an elastic material capable of exhibiting
One end of the tightening arm is rotatably supported, and one end of the second or first tightening arm is rotatably and detachably locked to the other end of the side member on the tire outer ring side. The other ends of the first and second tightening arms are rotatably supported on both sides of the tightening plate, and the tightening plate is rotated about the center thereof so that the tire outer wheel side An automobile tire chain, wherein both end portions of the side member are drawn toward the tightening plate, and the side member on the tire outer ring side exerts a predetermined tightening force. 2. The automobile tire chain according to claim 1, wherein said plurality of side components are made of a synthetic resin material having elasticity capable of exerting a predetermined tightening force. 3. At least one of the connecting members forming the tire outer ring side is composed of first and second tightening arms and a tightening plate, and one end of the first or second tightening arm is adjacent to each other. Is rotatably supported at the end of the side component member of
One end of the second or first clamping arm is provided so as to be rotatably and detachably locked to the end of the other adjacent side component member, and the first and second clamping arms are provided. The other end of the arm is rotatably supported on both sides of the tightening plate, and when the tightening plate is rotated about the center thereof, the opposite ends of the pair of side components become the tightening plate. 3. The automobile tire chain according to claim 1, wherein the tire chain is drawn toward the vehicle. 4. The lock plate according to claim 1, wherein said tightening plate is provided with a lock projection which abuts on said first or second tightening arm to prevent reverse rotation of said tightening plate. Automotive tire chains. 5. A pair of operation holes are formed in the tightening plate at positions symmetrical with respect to a center of rotation.
The automobile tire chain according to any one of claims 1 to 4, wherein a pair of projections of an operation jig are fitted into the pair of operation holes to enable the tightening plate to rotate. 6. The plurality of chains are formed by extending one chain in the width direction and forming the plurality of chains into a deformed lateral H shape in which the center is narrowed on the side of the one chain. The automobile tire chain according to any one of claims 1 to 5, wherein the automobile tire chain is looped between a pair of side members in a repeating pattern.