JP2007314157A - Easy-to-fit slip preventive tire chain - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tire chain which is easily fitted in a short time, and enables stable traveling even in an icy condition, and reducing shock noise. <P>SOLUTION: Upper supporters 3, 5 are inserted in a chain 1 with its length set to the outer circumference of a tire at each several chain ring, and upper sides thereof are welded to the chain 1. Lower supporters 4, 6 are inserted in a chain 2 and lower sides thereof are welded to the chain 2. The chains 1, 2 are placed parallel to each other, and the upper and lower supporters 3, 4, 5 and 6 are inserted in the respective rings, and tightened by a supporter width adjustment screw 7 to the tire width. The supporter width adjustment screw 7 is protruded from lower faces of the lower supporters 4, 6 by diameters of reinforcing bars of the chains. The space between the first supporters 3, 4 is set to be slightly smaller than the tire width, the first supporters 3, 4 are pressed immediately below the tire, the vehicle is moved thereto, and the chains are tightened by a coupler 8 so as not to have any slackness. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention makes it possible to easily attach an anti-slip device for a car in winter, which is effective for traveling on an icy road surface and reduces impact noise.

Conventionally, when traveling on snow and frozen road surfaces in winter by car, tire chains are mounted to prevent slipping. However, many conventional tire chains have a chain-like combination of chains, and the installation of tire chains is very complicated and labor-intensive. Was also big.

Attaching tire chains to prevent slipping due to sudden snowfall and freezing of the road surface required great effort. The present invention has been devised so as to reduce the labor required for mounting an anti-slip tire chain and allow easy mounting, as well as to stabilize running on a frozen road surface and to reduce impact and noise.

Since the supporter can be adjusted to the width of the car tire, the apparatus can be mounted on various tires. Then, if the vehicle is moved in the front (rear) of the tire, the device is automatically entangled with the tire, and can be easily mounted in a short time if connected by the coupler (8).

When tightened with the coupler (8), the supporters (3), (4), (5), and (6) are curved and do not touch the side surfaces of the tires too much, so there is little risk of damaging the tires.

This device has a high anti-slip effect because the chain is always in contact with the road surface because the contact with the road surface of the tire chain is vertical.

Conventional anti-slip tire chains and the like are troublesome to install, especially for women, but this device can be easily installed by anyone.

Since the chain {circle over (1)} {circle over (2)} contacts the road surface continuously in the vertical direction, there is little impact noise, and the chain portion is always in contact with the road surface, so it is effective even on a completely frozen road surface.

A structure that can be easily mounted even when sudden snowfall or road surface freezing is encountered, and a structure that can reliably travel even on an icy road surface can be achieved, thereby reducing impact and noise.

The present invention in the form of FIG. 1 comprises the chain (1) (2), supporter (3) (4) (5) (6), supporter width adjusting screw (7) and coupler (8) in FIG. ing.

The configuration will be described with reference to FIG.
The upper side of the first upper supporter (3) and the other upper supporter (5) are welded to the chain (1) whose length is adjusted to the outer periphery of the tire. Similarly, the lower side of the first lower supporter (4) and the lower side of the other lower supporter (6) are welded to the chain (2). Supporters (3), (4), (5), (6) have a thickness of 2 on the ring of chain (1), (2), and both supporters are inserted into the chain ring to adjust the width of the supporter. Tighten with screw (7). The upper supporters (3) and (5) have long holes for sliding, and the lower supporters (4) and (6) have several screw holes. The supporter width adjusting screw (7) shall protrude from the surface of the lower supporter (4) (6) to the same extent as the rebar diameter of the chain (1) (2) to prevent the supporter from bending due to tire pressure and against the frozen road surface. Also serves as a spike.

FIG. 2 is an overall view of the apparatus.

Is the state immediately before the device is installed.

Is a state in which the present apparatus is being mounted.

FIG. 4 is a side view after the apparatus is mounted.

These are the front views which showed the mounting state of this apparatus.

These are exploded views of the device.

These are the detailed figures of each block of this apparatus.

[FIG. 7] is an exploded detail view of the coupler (8).

These are external views of coupler (8).

The action of force in FIG. 9 will be briefly described. O is the axial point of the coupler (11), A is the power point to the upper part of the coupler (10), B is the power point to the lower part of the coupler (9), and F is the chain (1)
The tension of 2 ▼, FA is the direction of the force acting on the force point A, and FB is the direction of the force acting on the force point B. In other words, a closing force always acts on the upper part (10) and the lower part (9) of the coupler, and it is difficult to open the coupler (8) even if the lock pin (15) is removed.

These are the implementation figures of coupler (8).

Explanation of symbols

▲ 1 ▼ Chain 1
▲ 2 ▼ Chain 2
(3) First upper supporter (4) First lower supporter (5) Other upper supporter (6) Other lower supporter (7) Supporter width adjustment screw (8) Connector (9) Lower part of connector (10) Connection Upper part ▲ 11 ▼ Connector shaft ▲ 12 ▼ Shackle U part ▲ 13 ▼ Shackle pin ▲ 14 ▼ Shackle pin retaining pin ▲ 15 ▼ Connector release stop lock pin

Claims (1)

  Supporters with one side curved to fix the chain to the tire outer circumference (ground surface) are inserted from two sides of the chain, and the upper supporter The lower supporter is welded to the chain on one side, and the supporters on both sides can be adjusted to the tire width. The supporter is assembled in a U shape according to the tire, and the tire outer circumference can be increased by wearing and replacing the tire. An anti-slip tire chain fitted with a hook with a step hook that can adjust the tightening force even if it is different, so that the chain is firmly fixed to the tire contact surface.

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