JPS5914245Y2 - tire chain - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a tire chain.

Conventionally, a tire chain is known in which a plurality of cross chains each having a square cross section are connected between opposing parts of a pair of side chains each having a side link having a circular cross section. Since it has a rectangular cross-section, the ground-contacting portions at the corners are prone to wear, and the connecting portions to the side links are easily worn and broken at the corners.

This invention consists of cross links at both ends of a cross chain, which is made of a hardened mild steel wire with a rectangular cross section and formed into an annular shape with one edge on the inside and the other three on the outside. A connecting ring made of hardened mild steel wire with a circular cross section is connected to the side link of the side chain by a connector made of unhardened mild steel wire with a circular cross section, which prevents the cross chain from slipping. This has improved stopping effect and durability, as well as increased durability of the connecting portion between the cross chain and side chain, and its purpose is to eliminate the above-mentioned drawbacks of the conventional chain.

The illustrated embodiment will be described below.

1.1 is a side chain consisting of a large number of side links 2゜2 each having a thousand-sided oval shape formed of a mild steel wire with a circular cross section (wire diameter 5 to 1Qm/m), each having a plate-shaped hook 3 at the left end; 3
are attached by end non-links 4, 4, which are also made of mild steel wire.

Reference numeral 5 designates a cross chain in which a plurality of cross chains are stretched between the side chains 1, 1, which are arranged at a required distance from each other in the longitudinal direction of the side chains 1, 1, and connecting rings 6, 6 connected to both ends thereof. It is connected to a connector 7°7 connected to corresponding parts of both side chains 1,1.

Each cross chain 5 has a rectangular cross section (one side is 5 to 10 m/
It is made up of a series of four ten-sided approximately elliptical cross links 8 made of mild steel wire hardened in step m), and each cross link 8 has four slightly chamfered edges of the mild steel wire, one edge of which is on the inside. It is formed into an annular shape with the other three edges located on the outside.

The connecting ring 6 is made of a hardened mild steel wire with a circular cross section (wire diameter 5 to 1Qm/m), and has ring parts 6a and 6b in a figure 8 shape twisted 90 degrees to each other, and one ring part 6a is connected to a cross link 8 at the end of the cross chain 5.

Since the cross link 8 and the connecting ring 6 cannot be bent after being hardened, the connecting rings 6 at both ends are connected to the side chain 1 with the connector 7 after being connected to the required state and hardened. There is.

The connector 7 has a circular cross section (wire diameter 5 to 10 m/m)
It is made of unhardened mild steel wire and has a roughly U-shape in plan.
The ring part 6b of the connecting ring 6 is connected to the U-shaped curved part, and the required side links 2 are inserted and connected to the ring parts 7', 7' formed at the front end of the image.

Then, each cross chain 5 is passed over the ground contact surface of a tire (not shown), and the side chain 1.1 is formed into a ring along the side surface of the tire, and the hook 3.3 is attached to the side ring 2' at the other end. 2' and tightened in the diametrical direction with a known band, spring, etc.

As is clear from the above, according to the present invention,
The cross-links are made of hardened mild steel wire with a rectangular cross-section, and three of the four edges are located on the outside, so the edges of these cross-links dig into the road surface sufficiently and have an anti-slip effect. It is expensive and hardened by quenching, so it is hard to wear and has high durability.

In addition, a connecting ring made of hardened mild steel wire with a circular cross section is connected to the cross links at both ends of the cross chain, and this connecting ring is connected to the side link by a connector made of unhardened mild steel wire with a circular cross section. Even if the cross-link is hard and has sharp corners, the connecting rings are hardened to the same extent by quenching, so they are less likely to wear each other out.The connecting rings are harder than the connectors, but although they have the same circular cross-section, they are less likely to wear each other out. Therefore, the connecting portion between the side chain and the cross chain using these connecting rings and connectors is also robust.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, with FIG. 1 being a plan view with some parts omitted, and FIG. 2 being an enlarged sectional view of the main parts. 8...Cross link, 1,1...Side chain,
5...Cross chain, 2...Side link, 7.
...Connector, 6...Connection ring.

Claims (1)

[Scope of utility model registration request] A connector made of a mild steel wire material having a circular cross section is connected to a required opposing side link of a pair of side chains made of a series of side links made of a mild steel wire material having a circular cross section, and
A hardened mild steel wire with a square cross section is connected to each end of a multiple cross chain made up of cross links formed in an annular shape with one of the four edges located on the inside and the other three on the outside. A tire chain characterized in that the connector is connected to a connecting ring made of hardened mild steel wire having a circular cross section.