JPH0320161Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rubber tire anti-slip device used in place of a metal chain.

Rubber tire anti-slip devices can be roughly divided into two types: net type A and ladder type B, as shown in FIG.
Net type A has good braking performance in vertical, horizontal and diagonal directions,
It is also excellent in that it does not cause much lateral wobbling, but it has the disadvantage that it is difficult to install (it is done by jacking up) because it is connected all around.

On the other hand, ladder type B has good braking performance in the circumferential direction of the tire, but its braking performance in the lateral direction is not good, causing skidding or the ladder body flipping over while driving, and also has the disadvantage of large vibrations. be. However, since the locking rope can be separated, the tire can be easily attached by hand from behind the tire with the locking rope separated, without having to jack it up.

In view of the current situation, the present invention aims to provide a product on the market that has the advantages of both net type A and ladder type B.The main features of this invention are that the Y-shapes are alternately arranged in opposite directions, and One end of the adjacent leg lug and the end of the neck lug are connected by a connecting lug while maintaining an appropriate interval, and a diagonal groove of a constant width is formed between the two, which are arranged parallel to each other across the width of the tire. It is characterized by being attached between the book locking ropes via metal fittings.

An example of implementing the present invention will be described below based on the drawings.

FIG. 2 is a plan view of the anti-slip device used in the present invention, and FIG. 3 is a cross-sectional view taken along the line X--X of the same device, which is made of a rubber material with a constant thickness (approximately 7 mm). As seen in the above drawings, the anti-slip device 1 used in the present invention has a Y-shape that alternates in opposite directions, and maintains an appropriate distance between one end of the adjacent leg lug a and the neck lug b. The end portions of the two are connected by a connecting lug c, and a diagonal groove 2 of a constant width is formed between the two.

In this case, the leg lug length l is made larger than the neck lug l' so that a relatively large open leg portion 3 is formed between the leg lugs a, and the leg lug a is made larger than the neck lug l'.
It is curved slightly inward from the intersection P of the neck lug b toward the connecting lug c.

S is the tire tread width, and a large number of vertical ribs 5 are provided in the longitudinal direction within this width, whereas there are horizontal ribs on the other side, that is, on the surface facing the connecting lug c outside the above dimension width. 6 is provided. Reference numeral 7 denotes a keyhole drilled in the connecting lug c, which is fixed to a locking rope to be described below via a locking metal fitting.
Note that 8 is a notch provided at an arbitrary location on the leg lug a and the neck lug b so that spike metal fittings can be attached as appropriate.

FIG. 4 is a plan view showing the anti-slip tool 1 fixed to the locking ropes 9 and 10 parallel to each other across the width of the tire using a stopper 11. At this time, one locking rope (10 in the illustrated example) is cut at the open leg position, and connecting fittings 12 (male fitting) and 13 (female fitting) are attached to the opposite cut ends. The locking rope 9 is positioned inside the tire when it is installed, that is, with the connecting fittings 12 and 13 of the locking rope 10 removed, this part is placed on the ground surface of the tire for locking. The rope 9 is placed inside the tire and the locking rope 10 is placed outside the tire, and then the connecting fittings 12 and 13 are locked together, and then the locking ropes 9 and 10 are locked at both ends. The metal fittings 14a, 14b, 14'a, 14'b are engaged and fixed. The method of fastening these fastening metal fittings is the same as the conventional ones. In addition, 1
5 is a spike metal fitting provided in the notch 8.

The present invention is constructed as described above, and
Relatively large leg openings 3 are alternately formed by leg lugs a on the outer circumferential surface of the tire, and diagonal grooves 2 are also alternately formed on the tire tread, which makes it different from the conventional net type. The characteristic of the ladder type tire is that it has great braking performance in the circumferential direction, diagonal direction, and lateral direction, and there is no lateral vibration. However, since at least one of the locking ropes can be separated at any arbitrary position using the spread leg part 3, by providing a locking metal fitting at the separation point, tire hanging can be done as easily as with a ladder type. be. In addition, because of the spread leg portion 3, the entire structure is well tightened and the tightening operation is extremely easy to perform, and the diagonal groove 2 has an extremely large effect of blocking snow and provides excellent skidding. In addition to being prevented, the curling phenomenon that occurs in the ladder shape can also be prevented.

It should be noted that the connecting lug c is slightly curved inward so that it can be adapted to the circumferential surface of the tire, and mounting and tightening can be carried out more effectively.

[Brief explanation of drawings]

Figures 1A and B show conventional products, Figure 2 is a plan view of the anti-slip device used in the present invention, Figure 3 is a sectional view taken along line X-X of the same, and Figure 4 is the device of the present invention. FIG. 1... Anti-slip device, a... Leg lug, b... Neck lug, c... Connecting lug, 2... Diagonal groove, 3... Leg opening, 9, 10... Locking rope, 11... …Fasteners.

Claims (1)

[Claims for Utility Model Registration] (1) Lugs forming a Y-shape in alternate directions and connecting one end of the adjacent leg lugs and the end of the neck lug while maintaining an appropriate distance. Connect with
It also features a rubber anti-slip device with a diagonal groove of a constant width formed between them, and a structure in which the rubber anti-slip device is attached via a metal fitting between two locking ropes arranged parallel to each other across the width of the tire. A rubber tire anti-slip device. (2) Claim 1 of the utility model registration claim characterized in that one locking rope is cut inside the open leg at approximately the middle, and a connecting fitting is attached to the cut end. Rubber tire anti-slip device. (3) A rubber tire anti-slip device characterized by being slightly curved inward from the intersection of the leg lug and neck lug toward the connecting lug.