JP2002067639A - Automobile tire chain, chain hook, and attachment method of tire chain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple, quick attachment method of a tire chain for a large type of tire, including that of a truck. SOLUTION: In the tire chain, side chains 8, 8 arranged in parallel are coupled with cross chains 9, 9..., where one end of the side chains 8, 8 is fitted with chain hooks 1, 1 on which a string 10 is hooked, the string 10 being inserted through a link 12 at the other end of the side chain 8. Pulling the string 10 upon covering the tire with the tire chain causes both end of the side chain on the vehicle body side to be drawn together, by which the side chain is hooked up at the chain hook 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire chain to be mounted on a tire of a large vehicle such as a truck or a bus and a method of mounting the tire chain.

[0002]

2. Description of the Related Art When traveling on a road with snow, ordinary small passenger cars use snow tires. However, when the road surface is frozen, the snow tires alone cannot prevent the vehicle from slipping. In addition, in the case of a large vehicle, it is often not possible to drive safely only with snow tires even if the road surface is not frozen. Therefore, it is necessary to attach a tire chain to the tire, but it is not easy to attach a very heavy tire chain to a large tire of a large vehicle.

[0003] A large vehicle such as a truck generally travels a long distance, and in some cases it is necessary to travel on a road with snow during traveling, and a situation arises in which a tire chain must be suddenly mounted. FIG. 7 shows a conventional tire chain. Two parallel side chains (a), (b) and a plurality of horizontal chains (b), (b),. It has become. And the side chain (a),
Chain hooks (c) and (c) are attached to the tip of (b).

FIG. 8 shows this tire chain (e) as a tire.
(D) shows one work process for mounting, but the tire
(D) Hook the tire chain (e) over it as shown in the figure. In this case, the tire chains (e) are spread as shown in FIG. 7 and hung in a state where the twist of each chain is removed. In this state, attach the chain hook (c) attached to one end of the inner side chain (b) to the side chain.
This work is locked to the other end of (a), but this work is performed by inserting a hand through holes (g) and (g) of the wheel (f). Pull the both ends of the side chain (a) and pull the chain hook
Although (c) is locked, the chain hook (c) cannot be easily locked because the heavy duty tire chain (e) is heavy. It is harder than expected and takes longer. Once the inner chain hook (c) is locked, move the vehicle a little and lock the outer hook (c). The outer chain hook (c) can be locked relatively easily. Attach the chain band to the outer side chain (a) to make the attached tire chain (e) taut.

[0005]

As described above, the mounting of the tire chain has the above-mentioned problems. The problem to be solved by the present invention is this problem, and provides a tire chain, a chain hook thereof, and a method of mounting the tire chain which can be relatively easily mounted. Especially inside
This is a method of mounting a tire chain that can easily connect both ends of the (back side) side chain.

[0006]

According to the tire chain of the present invention, a plurality of cross chains are connected at a constant pitch to two side chains parallel to each other, and a chain hook is attached to one end of the side chain. are doing. Therefore, the basic form is the same as that of the conventional tire chain as shown in FIG. 7, but a small hole is provided at the base of the chain hook. However, this hole is located on the opposite side of the arm.

[0007] When mounting the tire chain, a string or a thin wire to be locked in the hole of the chain hook is used. A key is provided at both ends of the string or wire, and the key is locked in a hole formed in the chain hook. The string or wire is inserted through the link hole at the opposite end of the side chain, and the key at the end is the chain hook. Lock it into the side chain link hole on the side. That is, both ends of the rear side chain are connected via a string or the like. If a string or a wire is pulled on the tire in this state, the other end of the side chain is moved toward the chain hook, and the tip link is easily engaged with the chain hook to be connected.

Thereafter, the vehicle is slightly moved in the same manner as in the prior art, and the outer (front side) chain hook is locked and connected to the tip link of the side chain, and a chain band is attached to the outer side chain. . Here, the string or the like does not necessarily need to be connected to the chain hook, and if it is fixed to one end of the side chain and pulled through the link on the opposite side, the ends of the side chain can be pulled together. . Then, the opposite link is locked to the chain hook when it is drawn. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

[0009]

FIG. 1 shows an embodiment of a chain hook 1 according to the present invention. The chain hook 1 comprises a base 2 and an arm 3, and the arm 3 greatly extends outward from the base 2. A hole 4 penetrates the center of the base 2, a protrusion 5 is provided on the outer periphery of the base, and a small hole 6 penetrates the protrusion 5. The tip of one arm 3 is curved to form a key 7. Here, the protrusion 5 is formed in a direction opposite to the arm 3 with respect to the hole 4 of the base 2.

FIG. 2 shows an embodiment of the tire chain according to the present invention, in which two side chains 8, 8 are provided in parallel, and a plurality of cross chains 9, 9,. They are connected at a constant pitch. A chain hook 1, 1 shown in FIG. 1 is attached to one end of the side chains 8, 8, and a key is locked in a hole 6 of a convex portion 5 provided on the outer periphery of the base portion 2. Are linked. Here, the string 10 is attached to only one side chain 8.

FIG. 3 shows a case where the tire chain is stretched and arranged near the tire, and the string 10 connected to the chain hook 1 is passed through the inside of the tire 11. Then, the string 10 passes through the hole of the other end link 12 of the side chain 8 as shown in FIG. 4A, and the end of the string 10 is pulled in the direction of the chain hook 1. FIG. 2B shows a case where the key 13 provided at the tip of the string 10 is locked to the link 12 on the chain hook side. In this state, the tire chain is hung on the tire 11.

Here, the string 10 is inserted through the second link 12 while leaving one end link 12 of the side chain 8,
For this purpose, the distal link 12 is easily locked to the chain hook 1. FIG. 5A shows a case in which both ends of the inner (rear side) side chain 8 are connected to the tire 11 as shown in FIG. And FIG. 5 (b)
When the string 10 is pulled as shown in FIG. 7, the tip link 12 of the side chain 8 approaches the chain hook 1, and the tip link 12 can be locked to the arm 3 of the chain hook 1.

That is, the arm 3 is fitted and connected to the link hole, but if the string 10 is pulled, a clockwise moment acts around the hole 4 and the arm 3 tilts rightward. When the link 12 is fitted and locked to the inclined arm 3, the link 12 is less likely to come off the arm 3. When the distal link 12 is fitted and locked on the arm 3, the arm 3 is fastened to the link 12 of the side chain 8 with a rubber band or the like, and the link 12 is connected to the chain hook 1. Arm 3 and side chain 8
Is not detached by the key 7 formed at the tip of the arm. When the link 12 of the side chain 8 and the chain hook 1 are connected, the string 10 is removed from the chain hook 1 because it becomes unnecessary.

After the inner side chain 8 is connected via the chain hook 1, a conventional method is used.
The vehicle is slightly moved to rotate the tire 11, and the outer (front side) side chain 8 is connected via the chain hook 1. FIG. 6A shows a case where both ends of the outer side chain 8 are connected via the chain hook 1. Thereafter, in order to apply a predetermined tension to the tire chain with tabs, the chain band 14 shown in FIG.

As described above, the tire chain of the present invention has the chain hook attached to the tip of the side chain and the string hook or the like connected to the chain hook of the inner side chain. Can be obtained.

[0016]

According to the tire chain of the present invention, since a string or a wire is connected to a chain hook attached to the end of the side chain located inside the tire, it is possible to hang the tire chain on the tire and pull the string. The tip link can be pulled toward the chain hook. Therefore, the link can be easily locked to the chain hook, and the operation of connecting both ends of the inner side chain can be performed easily in a short time.

Moreover, a convex portion is provided at the base of the chain hook, and a key at the tip of the string can be locked in the hole of the convex portion, and if the string is pulled through the link at the distal end of the side chain, In addition, a moment acts on the chain hook to incline the arm, and a link is fitted to the inclined arm to facilitate locking.

[Brief description of the drawings]

FIG. 1 is an embodiment showing a chain hook of the present invention.

FIG. 2 shows a tire chain according to the present invention.

FIG. 3 shows a case where a tire chain is arranged in front of a vehicle tire.

FIG. 4 shows a case where both ends are connected via a string connected to a chain hook of an inner side chain.

FIG. 5 shows a case where a tire chain is hung on a tire and a tip link of a side chain is locked to a chain hook.

FIG. 6 (a) shows a case where an outer side chain is connected.
(b) shows a case where a chain band is attached to the outer side chain.

FIG. 7 shows a conventional tire chain.

FIG. 8 shows a state in which a tire chain is hung on a tire.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chain hook 2 Base 3 Arm 4 Hole 5 Convex part 6 Hole 7 Key 8 Side chain 9 Cross chain 10 String 11 Tire 12 Link 13 Key 14 Chain band

Claims (5)

[Claims] 1. A tire chain mounted on a tire to prevent slippage, a plurality of cross chains are connected at a fixed pitch to two parallel side chains, and a chain hook is provided at one end of the side chain. And a chain hook having a key formed at a tip extending from a base and a string or a thin wire having a key provided at a tip detachably connected to an outer periphery of the base. . 2. A tire chain in which a plurality of cross chains are connected at a constant pitch to two parallel side chains, and one end of the side chain is attached to a tire to connect both ends of the side chain. In the chain hook to be attached, the chain hook extends an arm with a key at the tip from the base, and a small hole on the outer periphery of the base for detachably locking a string or a thin wire on the opposite side from the arm A chain hook for a tire chain, which is provided so as to pass therethrough. 3. The chain hook according to claim 2, wherein a convex portion is formed on the outer periphery of the base portion, and a hole is provided in the convex portion. 4. A method for mounting a tire chain on a tire to prevent slipping, wherein the tire chain has
A plurality of cross chains are connected to a parallel side chain at a constant pitch, and a chain hook is attached to one end of the side chain, and the chain hook has a shape formed by extending an arm with a key at the tip from the base. Then, the thus constructed tire chain is hung on a tire, a string or the like is connected to one end of the back side chain or a chain hook, and the string or the like is pulled through the opposite link of the side chain. The two ends of the side chain are pulled toward each other to lock and connect the link to the chain hook, and both ends of the side chain on the near side are also connected via the chain hook. . 5. The method for mounting a vehicle tire chain according to claim 4, wherein said string or the like is attached to one end of a side chain in advance, and is hung on a tire while being inserted through an opposite link.