JPH01141108A - Car tyre slip preventive device - Google Patents

Abstract

PURPOSE:To make it possible to firmly secure a captioned slip preventive device by constituting the elastic supporting ring arranged at the center of the side face of a tyre, to which the hook provided to a slip preventive device secured on the external periphery of a tire is engaged and disengaged, of a plurality of concentric circle- like rings which are connected with each other by means of ribs. CONSTITUTION:A slip preventive device 5 comprises a plurality of slip preventive member 7 spacedly installed between two supporting wires 6 and 6 parallel to each other, and the slip preventive member 7 is constituted in such a manner that a plurality of cushioning members 9 comprising rubber ring and others and a plurality of slip preventive member 10 make of metallic prism are rotatably and alternately lined allowing a metallic wire 8 to pierce thereinto. The slip preventive device 5 is secured after being arranged in a circle on the periphery of a tyre with an elastic supporting ring 1 which is arranged to the center of the side face of a tyre hooked to a plurality of hooks 21 which is provided to the slip preventive device 5. In this case where, the supporting ring 1 shall be constituted in such a way that concentric circles, two layered rings 2 and 3, for example, are connected to each other by means of a plurality of ribs 4.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention provides a tire that is detachably attached to the outer periphery of a tire.
Regarding a slip prevention device for automobile tires to prevent slipping on road surfaces such as snowy roads, in particular, a slip prevention device for automobile tires that allows slip prevention devices such as tire chains to be attached securely to the outer circumference of the tire. Regarding.

(Prior Art) A tire chain attached to the outer circumference of a tire to prevent slipping on snowy or frozen roads is a two-stranded tire chain with connecting hooks 30 at both ends, as shown in FIG. A plurality of anti-slip chains 32 are installed between the support chains 31 and 31 at predetermined intervals. To attach this tire chain to a tire, as shown in FIG. 9, the hook 34 at the end of the connecting wire 33 pulled out from the support chain 31 is hooked onto the support ring 36 arranged at the center of the side surface of the tire 35. Chain 32 is tire 35
Make sure that it is in close contact with the outer periphery of the This support ring 36 is made of a stretchable material such as rubber.

(Problem to be Solved by the Invention) The support ring 36 made of an elastic body acts to bring the tire chain into close contact with the outer circumference of the tire 35 by a tensile force F, but the tension pitch P is biased while driving. This is easy to occur, and the tire chain becomes loose.

If the tire chain becomes loose, centrifugal force causes the chain 32 to hit the road surface, causing noise, damaging the road surface, and kicking up dust. Moreover, not only the chain 32 is worn out, but also the tires 35 are damaged, and the steering wheel has extra play, which worsens the driving operation.

Furthermore, if the tension pitch P is offset, the tension force F becomes unbalanced, and unreasonable stress concentrates on areas where the tension force is strong, causing the support ring 36 to break and become unusable. Problems begin to arise.

Therefore, the present invention was proposed to solve these conventional problems, and it is possible to attach the tire chain tightly to the outer circumference of the tire, thereby preventing the tire chain from hitting the road surface. Another object of the present invention is to provide an automobile tire slip prevention device that does not become unusable even if the support ring is partially cut off.

(Means for solving the problem) In order to achieve this object, the slip prevention device for automobile tires according to the present invention consists of an elastic body in which a hook attached to a slip prevention device such as a tire chain is disposed in the center of the side surface of the tire. When the anti-slip device is attached to the outer periphery of the tire by being hooked onto the support ring, the support ring is constructed of a plurality of concentric rings connected by ribs.

(Function) According to the present invention described above, since the support ring of the elastic body is constituted by a plurality of rings connected by ribs, the tensile force for bringing the anti-slip device such as a tire chain into close contact with the outer circumference of the tire is generated. This makes it possible to securely attach the anti-slip device to the tire.

Furthermore, since the plurality of rings connected by ribs act to naturally restore the unevenness of the tensile force, the unevenness of the tensile force is less likely to occur, and the occurrence of loosening of the anti-slip device can be prevented.

Furthermore, even if a part of the support ring is cut off, it will not become unusable because it is composed of a plurality of rings.

(Example) Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

FIG. 1 shows a support ring constituting an automobile tire slip prevention device according to an embodiment of the present invention.

In FIG. 1, a support ring 1 for closely attaching a tire chain or other anti-slip device to the outer periphery of a tire is integrally formed of an elastic material such as rubber. The ring 2 and 3 are connected by a plurality of ribs 4. As shown in FIG. 2, which is a cross-sectional view of this support ring 1, the inner ring 2 is formed to be slightly thicker than the outer ring 3, and this inner ring 2 reinforces the support ring 1. This serves to prevent the support ring 1 from deforming due to external tensile force. Further, the ring surface 2a of the inner ring 2 is formed into a flat shape, which improves the adhesion to the side surface of the tire.

FIG. 3 shows an example of an anti-slip device mounted on a tire using the support ring 1 described above.

In FIG. 3, this anti-slip device 5, which replaces a tire chain, has a plurality of anti-slip members 7 installed between two parallel support wires 6, 6 at a predetermined interval. Reference numeral 7 denotes a metal wire 8 through which a plurality of buffer members 9 made of rubber rings or the like and a plurality of anti-slip members 10 made of metal prisms are rotatably inserted alternately. By providing these buffer members 9 having a slightly larger diameter than the anti-slip member 10, when the anti-slip device 5 is mounted on the tire and the tire is running, the buffer member 9 first hits the road surface and softens the impact, and then the non-slip member 10 is in contact with the road surface, noise and wear of the anti-slip member 10 can be prevented.

Further, the plurality of anti-slip members 10 arranged in one anti-slip member 7 are each composed of a prism having a different number of corners. By providing a plurality of anti-slip members 10 with different numbers of angles in this way, when the anti-slip member 10 comes into contact with the road surface, the peripheral wall surfaces of the respective prisms are unlikely to be aligned in the same way, reducing the resistance to the road surface. This increases the anti-slip effect.

A plurality of buffer members 9 and a plurality of anti-slip members 1 arranged alternately
Both ends of the wire 0 are held by clamp members 11 and 11 that are inserted into the wire 8 and crimped to prevent the metal wire 8 from slipping and to prevent the metal wire 8 from being pulled out when the metal wire 8 is cut. .

The anti-slip member 7 is installed between the support wires 6.6 by attaching both ends of the metal wire 8 to the support wires 6.6 using connecting fittings 12.13. Connecting fittings 1
2.13, the metal wire 8, and the support wire 6 are provided with play to prevent fatigue failure of the metal wire 8 caused by the braking force of the tire being applied to the anti-slip member 7 while driving. is designed to prevent it from being cut.

Further, between the connecting fittings 12 and 13 and the clamp member 11, a roller 14 having a diameter slightly larger than that of the buffer member 9 is connected to the metal wire 8.
It is inserted into and rotatably provided. The rollers 14, 14 at both ends made of rubber material or the like come into contact with both sides of the tire when the anti-slip device 5 is attached to the tire. W
l Low friction resistance can be reduced. This eliminates the concentration of unreasonable force on the metal wire 8, and prevents fatigue failure of the metal wire 8, especially at the joints of the connecting fittings 12 and 13.
Breaking of the wire 8 due to metal fatigue can be prevented.

Further, as shown in FIG. 4, the metal wire 8 includes a core wire 15 made of, for example, stranded wires and a plurality of, for example, band-shaped jacket wires 16.
The reinforcing jacket wire 16 is divided into multiple wires and wound in this way, so even if one of the multiple wires is cut, the remaining outer wire is Since the covered wire 16 is functioning, the metal wire 8
will not become unusable.

The anti-slip device 5 can be divided into a plurality of parts by removing the connecting portion 17.17 provided in the middle of the support wire 6.6, making it easy to carry and handle. An advantage is that if a part becomes unusable due to damage, it can be partially replaced.

At one end of the support wire 6.6, a locking piece 18 is provided for connecting the anti-slip device 5 in an annular manner when attached to the tire.
．． 18 are provided respectively, and these locking pieces 18,
The locking ends 19 and 19 of the other end are engaged with 18, respectively.

Next, how to attach the anti-slip device 5 to a tire using the support ring 1 will be explained with reference to FIG. 5.

First, the anti-slip device 5 is wrapped around the outer periphery of the tire 20, and then the holes 1 are made in each of the connecting fittings 12.
The other ends 22 of the plurality of connecting hooks 21, one end of which is hooked to the hook 2a, are connected to the outer ring 3 of the support ring 1 by the rib 4.
Hook it by pinching it. In this mounting example, the anti-slip device 5 is held on an extension of the rib 4.

FIG. 6 shows another mounting example, in which the connecting hook 23 is hooked on the ring 3 between the ribs 4 and 4, and the anti-slip device 5 is mounted on the tire 2°. .

In this way, in the above-mentioned anti-slip device, since the support ring 1 is constituted by, for example, a double ring 2.3 connected by the ribs 4, it is difficult to deform even when pulled from the outside, and the anti-slip device 5 is attached to the tire 2. It can be attached securely to the outer periphery of the

In addition, even if part of the ring 2 or 3 or part of the rib 4 is cut off, the support ring 1 will not lose its function, and unlike conventional methods, for example, if the support ring is cut off, a tire chain may come off. No problems will occur.

Next, a support ring according to another embodiment will be explained with reference to FIG.

In the support ring 24 of this embodiment, ribs are not provided radially between the rings 25 and 26 (the outer ring 26
A rib 27 is provided in a zigzag shape between the ring 25 and the inner ring 25. This support ring 24 has a further improved ability to maintain an even tensile force.

Note that the support ring may be formed of two or more rings, and the support ring may be formed of a spring or the like instead of using rubber.

Furthermore, the support ring 1 or 24 may be used not only to attach the anti-slip device 5 to a tire, but also to attach a tire chain or the like.

(Effects of the Invention) As explained above, in the present invention, the support ring of the elastic body is composed of a plurality of rings connected by lips, so that the anti-slip device can be reliably attached to the outer circumference of the tire without loosening. can.

Therefore, the road pounding phenomenon caused by the conventional anti-slip device is eliminated, and noise generation and dust pollution can be prevented. In addition, it is possible to prevent wear of the anti-slip device, and to ensure stable running since there is no excess play in the handle.

In addition, since the tensile force that makes the anti-slip device tightly adhere to the outer circumference of the tire can be maintained evenly, local stress concentration due to uneven tensile force does not occur on the support ring, making it difficult for the support ring to break. Therefore, the life of the support ring can be extended.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a support ring according to the present invention, FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. 1, FIG. 3 is a plan view of a slip preventer, and FIG. FIG. 5 is a side view showing the state in which the anti-slip device is attached to the tire using the support ring, and FIG. 6 is a plan view showing the anti-slip device attached to the tire using the support ring. 7 is a plan view of a support ring of another embodiment, FIG. 8 is a plan view of a tire chain, and FIG. 9 is a side view showing another example of mounting.
The figure is a side view showing how a tire chain using a conventional support ring is attached to a tire. [Explanation of symbols] 1.24...Support ring 2.3, 25.26...Ring 4.27...Rib 5...Slip prevention device 6.
・・Support wire 7・・Slip prevention member 20・
...Tire patent applicant Sanden Shoji Co., Ltd. Figure 1 Figure 2 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] A slip prevention device for automobile tires in which a hook attached to the anti-slip device is hooked onto an elastic support ring placed in the center of the side surface of the tire, so that the anti-slip device can be attached to and removed from the tire in close contact with the outer periphery of the tire. In,
A slip prevention device for an automobile tire, characterized in that the support ring made of an elastic body is constituted by a plurality of concentric rings connected by ribs.