JPH0671213U - tire chain - Google Patents

Abstract

(57) [Summary] [Structure] A pair of side chains are arranged substantially parallel to each other, and a required number of cross chains are hung between these side chains, and the cross chains are wound along the width direction of the tire. In a tire chain in which a side chain can be annularly arranged along the circumferential direction of a tire, the cross-sectional diameter of a link constituting the side chain is set to about 3 mm or less, and the major axis of this link is set to about
A tire chain having a length of 24 mm or less and a heat treatment of a link of the sand chain. [Effect] It is possible to provide a tire chain having excellent durability even though it can be used in a vehicle having a small clearance between the tire and the vehicle body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a tire chain.

[0002]

[Prior art]

 The number of vehicles having a narrow clearance between the tire and the vehicle body tends to increase. Therefore, the conventional tire chain, which was manufactured on the premise of a vehicle having a wide clearance, cannot be mounted on such a vehicle.

Therefore, the inventor has devised a tire chain in which the cross-sectional diameter of the material of the link of the chain is made small and the major axis of the link is made short to make it easy to adhere to the tire.

[0004]

[Problems to be solved by the device]

 However, in such a tire churn, since the number of links is increased, the number of contact portions between the links is increased, and as a result, the entire length of the side chain is likely to be extended, and it is apt to be in a state where it cannot be retightened. .

An object of this invention is to eliminate these disadvantages.

[0006]

[Means for Solving the Problems]

 In order to achieve this object, in the tire chain according to the present invention, a pair of side chains are arranged substantially parallel to each other, and a required number of cross chains are hung between these side chains, and the cross chains are connected to the tire chain. In a tire chain in which the side chain can be wound along the width direction of the tire and arranged side by side along the tire circumferential direction,

The cross-sectional diameter of the link forming the side chain is about 3 mm or less, the major axis of the link is about 24 mm or less, and the link of the sand chain is heat-treated.

A carbonitriding method can be adopted as the heat treatment.

[0009]

[Action]

 Since the tire chain according to the present invention is configured as described above, the contact portion of each link in the side chain is less likely to be worn. As a result, the side chain link pitch is reduced and the number of links is increased. Nevertheless, the side chain is difficult to extend.

[0010]

【Example】

 In FIG. 1, reference numeral 1 is a tire of a wheel W, and 2 is a tire chain wound around the tire 1.

The tire chain 2 will be described in detail with reference to FIGS. 2 to 5.

In the figure, 31 is a front side chain of the tire chain 2 and 32 is a back side chain thereof, which are arranged substantially in parallel. When the tire chain 2 is attached to the tire 1, the side chains 31 and 32 are arranged in an annular shape along the circumferential direction of the tire 1. 41, 41, ... are cross chains, which are hung around the side chains 31, 32 in a ladder shape. These cross chains 41, 41, ... Are wound in the width direction of the tire 1 when the tire chain 2 is mounted on the tire 1.

Next, 311 is a side link that constitutes a main part of the front side chain 31. The sand link 311 is made of an iron wire material having a diameter of 3 mm, and its major axis is about 24 mm. 312 is an end link connected to one end of the front side chain 31. A plate hook 313 is connected to the end link 312 (see FIG. 4). The plate hook 313 is for hooking on the side link 311 at the other end of the front side chain 31 when the tire chain 2 is mounted on the tire 1. 314 is a stopper wound around the end link 312 to limit the swing of the plate hook 313. On the other hand, 321 is a side link that constitutes a main part of the back side chain 32. This sundrink 321 is formed of an iron wire rod having a diameter of 3 mm, and its major axis is about 24 mm 2. 322 is a hook-shaped wire hook connected to one end of the back side chain 32. The hook-shaped wire hook 322 is for hooking on the side link 321 at the other end of the back side chain 32 when the tire chain 2 is mounted on the tire 1. The above Said links 311,321 have been carbonitrided.

Next, 411 is a cross link that constitutes a main part of the cross chain 41, and 412 is a connector connected to both ends of the cross chain 41 (see FIG. 5). Through the connector 412, one end of the cross chain 411 is connected to the front side chain 31 and the other end is connected to the back side chain 32. The cross link 411 has been carbonitrided.

[0015]

[Effect of device]

 In the tire chain according to the present invention, a pair of side chains are arranged substantially parallel to each other, a required number of cross chains are hung between these side chains, and the above-mentioned cross chains are wound along the width direction of the tire. In a tire chain where side chains can be arranged annularly along the tire circumferential direction,

Since the cross-sectional diameter of the link forming the side chain is set to about 3 mm or less and the long diameter of this link is set to about 24 mm or less, and the link of the sand chain is heat-treated,

As a result of the contact portion of each link in the side chain being less likely to wear, the side chain is difficult to extend despite the fact that the pitch of the links in the side chain is reduced and the number of links is increased.

Therefore, the tire chain of the present invention can provide a tire chain having excellent durability even though it can be used in a vehicle having a small clearance between the tire and the vehicle body.

[Brief description of drawings]

FIG. 1 is a front view of a tire equipped with a tire chain of the present invention.

FIG. 2 is a plan view of a tire chain.

FIG. 3 is a view on arrow III in FIG.

FIG. 4 is a view on arrow IV in FIG.

5 is a view on arrow V in FIG. 2. FIG.

[Explanation of symbols]

 1 tire 2 tire chain 31 front side chain (side chain) 311 side link (link) 32 back side chain (side chain) 321 side link (link) 4 cross chain

Claims (2)

[Scope of utility model registration request] 1. A pair of side chains are arranged substantially parallel to each other, a required number of cross chains are hung between these side chains, and the cross chains are wound along the width direction of the tire and the side chains are tired. In a tire chain that can be arranged in an annular shape along the circumferential direction of, the cross-sectional diameter of the links constituting the side chain is approximately 3
A tire chain characterized in that the length of the link is not more than mm and the major axis of the link is about 24 mm or less, and the link of the sand chain is heat-treated. 2. The tire chain according to claim 1, wherein the heat treatment is a carbonitriding method.