How to repair tire chains

Abstract

To provide a tire chain repair method which enables removal of a cross chain from a side chain and is suitable for large vehicles.SOLUTION: A tire chain repair method includes: a step S20 in which a cross chain 11 is removed from a side chain 10 in a state that the tire chain 1 is attached to a tire T; steps S21, S21' in which overlay welding is performed to an abrasion part 11a of the removed cross chain 11; and a step S22 in which the cross chain 11 is attached to the side chain 10 so that the overlay-welded portion is located at the road surface side.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a method for repairing tire chains that are attached to prevent tires from slipping when snow or ice accumulates on the road surface. [Background technology]

[0002] In the case of large vehicles such as snowplows, the tires are very large as well as the vehicle itself, so the tire chains attached to prevent the tires from slipping are also made of large metal, making them very heavy. Tire chains consist of side chains placed on the sides of the tires and cross chains placed around the circumference of the tires, with the cross chains making contact with the road surface.

[0003] In the case of large vehicles, the weight of the vehicle body and tires is very heavy, so the cross chains that come into contact with the road surface are easily worn. As a result, it is necessary to replace the tire chains to prevent the cross chains from wearing out and breaking, but because the tire chains are very heavy, the replacement work is very dangerous and takes a long time.

[0004] There are also tire chains that allow you to remove and replace only the cross chain while the tire chain is still attached to the tire, without having to replace the entire tire chain (see Patent Documents 1 and 2).However, the connecting parts of these tire chains that allow the cross chain to be attached and detached are not designed to be suitable for large vehicles, and as a result, there is a risk of damage when used on large vehicles. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Utility Model Application Publication No. 2-76505 [Patent Document 2] Japanese Patent Application Publication No. 10-138721 Summary of the Invention [Problem to be solved by the invention]

[0006] Therefore, the problem that the present invention aims to solve is to provide a tire chain repair method that allows the cross chain to be removed from the side chain and is suitable for large vehicles. [Means for solving the problem]

[0007] In order to solve the above problems, a tire chain repair method according to the present invention includes: a side chain disposed on the side of a tire of a vehicle; a cross chain disposed on the circumferential side of the tire; A method for repairing a tire chain comprising: a connecting portion for detachably connecting a cross chain to a side chain; With the tire chains attached to the tire, removing the cross chains from the side chains; a step of overlay welding the worn portion of the removed cross chain; and attaching the cross chain to the side chain so that the welded build-up portion faces the road surface.

[0008] When tire chains are used for a long period of time, the part of the cross chain that comes into contact with the road surface wears out and becomes slippery. However, with the tire chain repair method of the present invention, the cross chain can be easily removed via the connecting part and the worn part can be welded over. By placing the welded overlay part facing the road surface, the welded overlay part can function as a spike, making it less slippery.

[0009] Preferably, a frame is placed on the wear portion of the cross chain, and build-up welding is performed on the inside of the frame.

[0010] By welding the build-up inside the frame, even if the worker is not an expert, the weld metal will not drip from the cross chain and the worn parts can be reliably welded.

[0011] Preferably, the frame includes a wall portion disposed so as to protrude from the cross chain, and a recess formed so as to fit along the ring portion of the cross chain.

[0012] By arranging the recess of the frame so that it fits along the ring portion of the cross chain, the frame can be positioned without being misaligned with the worn portion, and metal can be reliably welded to the worn portion.

[0013] Further, the tire chain repair method according to the present invention includes: a side chain disposed on the side of a tire of a vehicle; a cross chain disposed on the circumferential side of the tire; A method for repairing a tire chain comprising: a connecting portion for detachably connecting a cross chain to a side chain; With the tire chains attached to the tire, removing the cross chains from the side chains; reversing the detached cross-chain; and attaching the inverted cross-chain to the side-chain.

[0014] When tire chains are used for a long time, the part of the cross chain that comes into contact with the road surface wears out and becomes slippery. However, with the tire chain repair method of the present invention, the cross chain can be easily removed and turned over via the connecting part, allowing the unworn part to be placed on the road surface side. [Effects of the Invention]

[0015] According to the tire chain repair method of the present invention, the cross chain can be removed from the side chain, and since the configuration is suitable for large vehicles, there is no risk of damage. [Brief explanation of the drawings]

[0016] [Figure 1]FIG. 2 is a side view showing a tire chain attached to a tire. [Figure 2] FIG. 2 is a plan view showing the deployed tire chain. [Figure 3] FIG. 2 is a perspective view showing a connecting portion of the first embodiment. [Figure 4] FIG. 10 is a side view illustrating a connecting portion of the second embodiment. [Figure 5] Figure 5(A) is a perspective view showing a worn cross chain, Figure 5(B) is a perspective view showing a frame body arranged on the cross chain, and Figure 5(C) is a plan view showing a frame body arranged on the cross chain. [Figure 6] FIG. 1 is a flowchart illustrating a first embodiment of a tire chain repair method. [Figure 7] FIG. 6 is a flowchart illustrating a second embodiment of a tire chain repair method. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, an embodiment of a tire chain repair method according to the present invention will be described with reference to the drawings.

[0018] <Tire chain configuration> The structure of the tire chain will be described. As shown in Fig. 1, the tire chain 1 is configured to be attached to a tire T of a vehicle. When snow or ice accumulates on the road surface, the tire chain 1 is attached to the tire T to prevent the tire T from slipping while the vehicle is traveling. In this embodiment, the tire chain 1 is made of metal so as to be suitable for the tire T of a large vehicle.

[0019] The tire chain 1 comprises a side chain 10 arranged on the side of the tire T and a cross chain 11 arranged on the circumferential surface of the tire T. The side chain 10 and the cross chain 11 are configured by connecting a plurality of metal ring portions 100, 110.

[0020] The tire chain 1 also includes a ring-shaped spring band 12 that is placed on the side of the tire T, and the spring band 12 is connected to the side chain 10 via a plurality of hooks 13.

[0021] The tire chain 1 is configured so that the side chain 10 is pulled toward the center of the side surface of the tire T by the elastic force of the spring band 12, and the cross chain 11 is securely in contact with the circumferential surface of the tire T.

[0022] As shown in FIG. 2, the tire chain 1 has two side chains 10, each of which is placed on either side of the tire T. A plurality of cross chains 11 are placed between and connected to the two parallel side chains 10. Connectors 14 are attached to the ends of the side chains 10, and by connecting both ends of the side chains 10 with the connectors 14, the ring-shaped side chain 10 can be placed on the side of the tire T, as shown in FIG.

[0023] As shown in Figures 1 and 2, the tire chain 1 has a connecting portion 2 for detachably connecting the cross chain 11 to the side chain 10. The connecting portion 2 connects both ends of each cross chain 11 to the side chain 10.

[0024] <First embodiment of connecting portion> A first embodiment of the connecting portion 2 will be described. 3, the linking portion 2 has a metal main body 20, similar to the ring portions 100, 110 of the side chain 10 and the cross chain 11. The main body 20 has gaps 20a through which the ring portions 110 of the cross chain 11 can pass. Therefore, the main body 20 is configured in a discontinuous shape due to the gaps 20a.

[0025] The connecting portion 2 also includes a metal nut portion 21 fitted into the main body portion 20. The nut portion 21 is configured to be movable along the main body portion 20. The nut portion 21 has a threaded portion 210 on the inside, and the main body portion 20 has a threaded portion 200 at the end portion adjacent to the gap portion 20a.

[0026] As a result, the gap 20a can be closed by placing and rotating the nut portion 21 in the gap 20a and tightening the screw portions 200, 210. The gap 20a can also be opened by rotating the nut portion 21 placed in the gap 20a and loosening the screw portions 200, 210. By opening the gap 20a and allowing the ring portion 110 of the cross chain 11 to pass through the gap 20a, the cross chain 11 can be removed from the connecting portion 2.

[0027] <Second embodiment of connecting portion> A second embodiment of the connecting portion 2 will be described. 4, the main body 20 of the connecting part 2 has a gap 20a, similar to the first embodiment. The connecting part 2 is provided with a pair of metal nut parts 22 fitted into the main body 20, and the pair of nut parts 22 are fitted into the main body 20 so as to be disposed on both sides of the gap 20a. The nut parts 22 have a threaded part 22a formed on the inside.

[0028] The connecting portion 2 also has a metal bolt portion 23. The bolt portion 23 has a threaded portion 23a on the outside thereof and is configured to be screwed onto the threaded portion 22a of the nut portion 22. The length of the bolt portion 23 is shorter than the gap 20a so that it can be disposed in the gap 20a. Furthermore, when the pair of nut portions 22 are screwed onto the bolt portion 23 disposed in the gap 20a, the nut portion 22 is held in the gap 20a by the main body 20 of the connecting portion 2 and the bolt portion 23, thereby closing the gap 20a.

[0029] <First embodiment of tire chain repair method> A first embodiment of a tire chain repair method will be described. As shown in Figure 6, when the tire chain 1 is used for a long time, the portion of the cross chain 11 that comes into contact with the road surface wears and becomes slippery. Therefore, with the tire chain 1 attached to the tire T, the gap 20a of the connecting portion 2 is opened and the worn cross chain 11 is removed from the connecting portion 2 (step S10). Then, the removed cross chain 11 is turned over (step S11). Then, the turned over cross chain 11 is placed inside the main body portion 20 of the connecting portion 2, and the gap 20a is closed (step S12).

[0030] This allows the cross chain 11 to be easily removed and turned over via the connecting part 2 without having to remove and turn over the entire tire chain 1, which is very heavy, from the tire T, and allows the unworn part to be placed on the road surface side.

[0031] <Second embodiment of tire chain repair method> A second embodiment of the tire chain repair method will be described. 7, with the tire chain 1 attached to the tire T, the gap 20a in the connecting portion 2 is opened and the worn cross chain 11 is removed from the connecting portion 2 (step S20). Then, the worn portion 11a of the removed cross chain 11 is overlay welded (step S21). Then, the cross chain 11 is placed in the connecting portion 2 so that the overlay welded portion faces the road surface, and the gap 20a is closed (step S22).

[0032] This allows the cross chain 11 to be easily removed via the connecting part 20 and the worn part 11a to be welded by build-up welding, without having to remove the entire tire chain 1, which is very heavy, from the tire T and turn it over, and by arranging the welded build-up part facing the road surface, the welded build-up part can function as a spike to make it less slippery.

[0033] 5, when overlay welding the cross chain 11, a metal frame 3 is placed on the worn portion 11a of the cross chain 11, and overlay welding can be performed on the inside 3a of the frame 3 (step S21'). In overlay welding, by placing the tip of the rod, which is the welding material, inside the frame 3, the weld metal is formed on the inside 3a of the frame 3 and does not drip down, so that the worn portion 11a can be reliably overlay welded.

[0034] As shown in Figure 5(B), the frame body 3 has a wall portion 30 arranged to protrude upward from the cross chain 11, and a pair of recesses 31, 31 formed in the wall portion 30 so as to fit along the circumferential surface of the cross chain 11. The recesses 31, 31 face each other on the inside of the frame body 3, and by fitting each of the recesses 31, 31 into the ring portion 110 of the cross chain 11, the frame body 3 can be reliably build-up welded to the wear portion 11a without shifting from the wear portion 11a.

[0035] 5(C), it is desirable that the width W of the frame 3 is approximately the same as the diameter φ of the ring portion 110 of the cross chain 11, so that when build-up welding is performed on the inner side 3a of the frame 3, the weld metal is not formed on the inner side 3a of the frame 3 and drips, and the wear portion 11a can be reliably build-up welded. It is also desirable that the length L of the frame 3 is greater than the wear portion 11a, so that the entire range of the wear portion 11a can be build-up welded. Since the wear portion 11a comes in various sizes, it is desirable to prepare multiple frame bodies 3 with different lengths L.

[0036] Although the preferred embodiments of the present invention have been described above, the configuration of the present invention is not limited to these embodiments. [Explanation of symbols]

[0037] T Tire 1 tire chains 10 Side Chain 11 Cross-Chain 100,110 Ring section 2 Connecting part 20a Gap 20 Main body 21 Nut 11a Wear area 3 Frame 30 Wall 31 Recess

Claims

[Claim 1] a side chain disposed on the side of a tire of a vehicle; a cross chain disposed on the circumferential surface side of the tire; A method for repairing a tire chain comprising: a connecting portion for detachably connecting the cross chain to the side chain, removing the cross chain from the side chain with the tire chain attached to the tire; placing a frame on the worn portion of the removed cross chain; A step of overlay welding on the inside of the frame body; and attaching the cross chain to the side chain so that the build-up welded portion faces the road surface, The frame body includes a wall portion disposed so as to protrude from the cross chain, and a pair of recesses formed in the wall portion so as to follow the circumferential surface of the cross chain, The width of the frame is approximately the same as the diameter of the ring portion of the cross chain, The pair of recesses are arranged to face each other on the inside of the frame, and are formed along the ring portion of the cross chain, so as to be fitted into the ring portion of the cross chain. A tire chain repair method characterized by the above.

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