JPH027051Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an anti-slip device for automobile tires used for vehicles traveling on icy and snowy roads during the winter season.

[Technical background of the invention and its problems]

In winter, vehicles that drive on icy and snowy roads are equipped with snow tires or spiked tires, or chains are wrapped around the tires in order to prevent the tires from slipping.

However, snow tires do not have sufficient anti-slip effects on frozen roads and often cause skidding, which is dangerous, and spiked tires do not have sufficient anti-slip effects on snowy roads. In addition, replacing tires with regular tires on a road surface under normal sunny weather requires the same amount of effort and time as repairing a puncture, and the complexity is unbearable.

Furthermore, tire chains are extremely difficult to attach and detach from the tires, and driving on normal roads without ice or snow with the chains attached can cause unnecessary vibrations to the car, which can cause car breakdowns. This is a major inconvenience for the national economy, as it causes a lot of wear and tear on the tires and chains, and also damages the asphalt on the road surface.

[Purpose of invention]

The present invention was developed based on the above-mentioned circumstances, and it is an object of the present invention to select the most appropriate anti-skid device from among multiple types according to the road surface conditions during the winter season, and to easily fix it to the tire tread surface. It is an object of the present invention to provide an anti-slip device for automobile tires which enables stable running on winter road surfaces and reliably prevents slips, and which also meets the demands of the national economy.

[Summary of the idea]

The outline of the present invention for achieving the above object is to install shallow grooves and deep grooves that intersect in the circumferential direction on the tread circumferential surface of an old tire that covers the outer circumferential surface of a regular tire. different types of anti-slip devices are attached to each surface of the rectangular parallelepiped-shaped anti-slip member which is arranged alternately and can be fitted into and removed from each of the above-mentioned recessed fitting grooves,
A string-like body is loosely inserted in the axial direction of this anti-slip member, one end of the string-like body is fixed to the inner peripheral edge of the old tire located on the back side, and the other end of the string-like body is attached to the old tire located on the front side. The inner circumferential edge of the cap body is connected to the circumferential edge of the cap body which is rotatably supported on a retaining plate, and a member for preventing reverse rotation is provided near the cap body, so that the string-like body is rotated by the rotation of the cap body. It is characterized in that the anti-slip member having the anti-slip device can be fixed in each recessed groove by tensioning the anti-slip member.

[Example of idea]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the anti-slip device for automobile tires according to the present invention will be described below with reference to the drawings.

Fig. 1 is a perspective view of an embodiment of the present invention seen from the front side, Fig. 2 is an exploded perspective view of its constituent parts,
Fig. 3 is a perspective view of the embodiment as seen from the back side;
5 is a perspective view showing a non-slip member, and FIG. 6 is an exploded perspective view showing some of the components.

In each figure, reference numeral 1 denotes an old tire in which the ordinary tire 2 is covered with a raised member 14 on the outer periphery of the tread of the ordinary tire 2. Shallow grooves 3A and deep grooves 3B, which are bored in a direction perpendicular to the groove 3A, are alternately provided along the circumferential direction at regular intervals. The shallow groove 3A has a depth equal to the thickness of the old tire 1, and the deep groove 3B has a depth equal to the thickness of the old tire 1.
It has a depth equal to the thickness of both of the and the bulky member 14. Furthermore, the widths (lengths in the circumferential direction) of the shallow grooves 3A and the deep grooves 3B are the same, and are the same length as the depth of the deep grooves 3B.

The circumferential edge located on the front side of the used tire 1 is fixed to a disc-shaped retainer plate 4 overlapping the wheel 2A of the regular tire 2, for example, with bolts and nuts 5. As shown in FIG. 2, the holding plate 4 has a circular recess 6 in the central portion, and
A cylindrical receiver 7 is placed in the center of the recess 6.
It is formed to protrude more than the A gear 8 is provided around the periphery of the intermediate body portion of the receiver 7, and the gear 8 divides the receiver 7 into a head portion 7A and leg portions 7B.

Reference numeral 9 denotes a non-slip member that is removably fitted into both the shallow groove 3A and the deep groove 3B, and each anti-slip member 9 is made of an elastic material such as rubber, as shown in FIG. A rectangular parallelepiped-shaped main body 9A that is molded and has almost the same shape as the deep recessed fitting groove 3B, a plurality of spikes 9B driven into one side of the rectangular parallelepiped main body 9A, and a metal fitting attached to the other side of the main body 9A. It consists of 9C. The metal fitting 9C is provided with opposing projecting pieces along the longitudinal direction of the main body 9A.

A string-like member, for example, a wire 10 is loosely inserted into a through hole 9a formed in the axis of the rectangular parallelepiped main body 9A, and the anti-slip member 9 is rotatable about the wire 10 as a central axis. Moreover, each anti-slip member 9 fitted into each shallow recessed fitting groove 3A has its main body 9
Spikes 9B or metal fittings 9C located on the top side of A
is designed to protrude beyond the tread circumferential surface 1A of the old tire. Further, each anti-slip member 9 is arranged in each deep recessed groove 3B such that the rubber surface of the main body 9A, which has neither the spikes 9B nor the metal fittings 9C, is located on the upper surface side.
When inserted into the tire, the tread peripheral surface 1A of the old tire and the rubber surface of the main body 9A are at the same height.

One end of the wire 10 is fixed to the inner peripheral edge of the used tire 1, as shown in FIG. 3, and the other end is attached to the receiver 7, as shown in FIGS.
A cap body 1 rotatably fitted onto the head 7A of
Each wire 10 is attached to the flange 12A of the cap body 12A, and each wire 10, which loosely inserts the axis of the main body 9A of each anti-slip member 9, is radially connected to the periphery of the cap body 12. Further, each wire 10 has a uniform length, and the length is kept long enough to allow the anti-slip member 9 to escape from the shallow recessed fitting groove 3A and the deep recessed fitting groove 3B. .

As shown in FIG. 6, a locking pawl 13 with a coil spring 13A that constantly exerts a biasing force in the direction of the gear 8 is attached to the back side of the cap body 12 that is inserted into the head 7A of the receiver. There is.

In the figure, 15 is a straight-shaped protrusion that protrudes from the top of the cap body 12, and 16 is an insertion hole for a threaded rod that protrudes from the wheel holder of an automobile.
7 is used to integrally fix the wheel 2A of the regular tire and the holding plate 4 to the wheel receiver.

The anti-slip device for automobile tires constructed as described above is used in the following manner.

First, the main body 9A is rotated about the wire 10 as a central axis, and the anti-slip members 9 are fitted into each of the shallow grooves 3A so that the desired surface of the rectangular parallelepiped main body 9A is located on the upper surface. Next, for example, a box spanner 18 having a recess 18A inside is inserted into the linear protrusion 15 of the cap body 12, and the cap body 12 is rotated to strongly tighten the wire 10. As shown in FIG. The anti-slip member 9 is firmly fixed in each shallow recessed groove 3A.

After each wire 10 has been tightened in this manner, when the box spanner 18 is removed from the linear protrusion 15, the locking pawl 13 is locked to the gear 8, preventing the cap body 12 from rotating in the opposite direction. wire 10
Since the tension state is maintained, each anti-slip member 9 is held firmly fixed within the recessed fitting groove 3.

Therefore, depending on the road surface condition during the winter period, the main body 9
If the surface A is selected in advance and the anti-slip member 9 is fixed in the recessed groove 3 so that the spike 9B or metal fitting 9C protrudes from the tread peripheral surface 1A,
Spikes 9B can reliably prevent slips. In addition, on a compacted snow road surface or a deep snow road surface, if the anti-slip member 9 is fixed in the shallow groove 3A so that the metal fitting 9C protrudes above the tread peripheral surface 1A,
The protrusions on the metal fittings ensure that snow can be gripped securely to ensure stable running, and can also be useful in preventing slips. Furthermore, on roads without ice and snow in winter, each anti-slip member 9 is placed in each deep groove 3B so that the rubber surface of the main body 9A without either the spikes 9B or the metal fittings 9C is located on the side of the tread circumferential surface 1A. If it is fitted and fixed by tightening the wire 10, the rubber surface of the main body 9A becomes one with the tread circumferential surface 1A of the old tire and plays the role of the tread surface, which is not only convenient for driving, but also There is no risk of damaging the asphalt on the road surface, and no unnecessary vibration is given to the car.

In addition, when changing the surface of the main body 9A and resetting the anti-slip member 9 in the shallow recessed fitting groove 3A, the wire can be removed by releasing the locking pawl 13 that is locked to the gear 8 from the gear 8. 10 can be relaxed.

It goes without saying that the present invention is not limited to the embodiments described above, and includes various modifications within the scope of the gist of the present invention. For example, the anti-slip member 9 mentioned in the above embodiment is merely a representative example, and each surface of the main body 9A of the anti-slip member 9 is not limited to spikes 9B or metal fittings 9C, but is effective in preventing slips on icy and snowy roads. Of course, other non-slip devices can also be provided.

[Effect of idea]

As explained above, the present invention provides different anti-slip devices on each side of the main body of the anti-slip member that is loosely inserted into the wire, and one side of the main body is fitted into a recessed groove drilled in the tread surface of an old tire. The structure is such that the anti-skid member can be fixed in the recessed groove by setting it facing upward and tightening the wire, making it easy to select the most appropriate anti-skid member depending on the road surface conditions during the winter season. It is possible to provide an automobile tire slip prevention device that can be fixed to the tread circumferential surface by a simple operation and can contribute to safe driving on winter roads. In addition, since regular tires are covered with old tires, they can run on winter roads without ice and snow without rattling like regular tires, which prevents wear and tear on the tires, and also allows the vehicle to It also has the effect of preventing damage to the road surface without adversely affecting the road itself.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention seen from the front side, Fig. 2 is an exploded perspective view of its constituent parts,
Fig. 3 is a perspective view of the embodiment as seen from the back side;
5 is a perspective view showing a non-slip member, and FIG. 6 is an exploded perspective view showing some of the components. 1... old tire, 1A... tread circumference, 2...
...Regular tire, 3A...Shallow recessed groove (recessed groove),
3B...Deep recessed fitting groove (concave fitting groove), 4...Retaining plate,
8... Gear (reverse rotation prevention member), 9... Anti-slip member, 9B... Spike (non-slip tool), 9C... Metal fitting (non-slip tool), 10... String-shaped body (wire), 12 …
...Cap body, 13...Latching claw (reverse rotation prevention member).

Claims (1)

[Scope of utility model registration request] Shallow grooves and deep grooves that intersect in the circumferential direction are arranged alternately at predetermined intervals on the tread circumferential surface of an old tire that covers the outer circumferential surface of a regular tire, and each of the above-mentioned grooves is A different type of anti-slip device is attached to each side of a rectangular parallelepiped-shaped non-slip member that can be fitted and removed from the body, a string-like body is loosely inserted in the axial direction of the non-slip member, and one end of the string-like body is positioned on the back side. It is fixed to the inner circumferential edge of the old tire, and the other end of the string-shaped body is connected to the circumferential edge of the cap body, which is rotatably supported on a retaining plate located on the front side and to which the inner circumferential edge of the old tire is fixed. A member for preventing reverse rotation is provided near the cap body, and by tensioning the string-like body as the cap body rotates, the non-slip member having the anti-slip device can be fixed in each recessed groove. A slip prevention device for automobile tires, characterized by: