JPH0417363Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is a non-metallic tire skid device that is attached to the tires to prevent the tires from slipping when a car drives on snowy or frozen roads. Regarding.

(Prior Art and Problems) A conventional non-metallic tire anti-slip device of this type is shown in FIG.

That is, the tire anti-skid device B has a belt-shaped net 1 made of synthetic rubber or the like located inside the tire.
An inner member 3 made of a C-shaped spring steel material 3b having a sleeve 3a on the outside is attached via a hook 2, and a locking fitting 4 having a U-shaped locking protrusion 4a is attached to one end of the spring steel material 3b. Locking protrusion 4 on the other end
Locking metal fittings 5 each having a locking hole 5a are attached.

Further, a tightening rope 7 is attached to the portion of the belt-like net 1 located inside the tire via a hook 6, and a rope tightening fitting 8 is attached to the loop 9 formed on one side of the tightening rope 7. The other end of the tightening rope 7 is wound around a movable tightening tool 8a provided on the rope tightening fitting 8 and pulled out.

Such a tire skid device B includes a locking metal fitting 4 of an inner member 3 of a belt-like net 1 which is wrapped around the outer peripheral surface of the tire.
5, pull the end of the tightening rope 7 and tighten it through the tightening tool 8a of the rope tightening fitting 8,
and a tightening band (not shown) between the tightening ropes 7.
It is attached to the tire by hooking it to the tire.

By the way, when installing this tire skid device B, the tightening rope 7 is tightened on the outside of the tire with the rope tightening fitting 8 as described above, but it is difficult to tighten the belt-shaped net 1 uniformly. , the uneven tightening is compensated for by the latching of the tightening band.

Therefore, in addition to the work of tightening the tightening rope 7, the work of hooking the tightening band is required, and the work of attaching it to the tire is troublesome, takes a long time, and has the drawbacks of requiring a large number of parts. .

As a countermeasure against this problem, the present applicant has proposed a tire skid device C shown in FIGS. 3 and 4 A, B, and C.

That is, a plurality of cross belts 10 made of synthetic rubber or the like are attached to an inner member 3 having locking metal fittings 4 and 5 at both ends in a cross-shaped shape, alternately arranged in opposite directions, and attached via hooks 2. An elastic member 11 is hooked to a hole 10c provided at the end of the belt 10 located outside the tire, and a movable fastener 8 of a rope fastener 8 is attached to a loop 9 formed on one side.
The tightening rope 7, the other of which is wound around a and pulled out, and the elastic member 11 are connected to an S-shaped mounting bracket 12.
By pulling and tightening the end of the tightening rope 7 wound around the tightening tool 8a of the rope tightening fitting 8 on the outside of the tire,
The elastic members 11 extend through the mounting fittings 12, and each cross belt 10 is elastically pressed against the outer peripheral surface of the tire, and the elastic members 11 function as a conventional tightening band, so that each cross belt 10 is tightened uniformly. This is what I did.

However, the following problems were also found in this tire anti-skid tool C.

That is, while the car is running, the cross belt 10 floats due to the centrifugal force of rotation, and as the cross belt 10 repeatedly comes into contact with the outer peripheral surface of the tire when it comes into contact with the road surface, the elastic member 11 repeatedly expands and contracts. As a result, sliding friction occurs in each of the hooks on the cross belt 10 and the mounting bracket 12, causing them to break as wear progresses, resulting in a lack of durability and the cross belt 10 coming off the tightening rope 7, causing damage to the vehicle. That's true.

(Means for solving the problem) The present invention is designed to prevent the cross belt from coming off the tightening rope even if the elastic member is cut as described above. A mounting bracket connects a tightening rope to an elastic member hooked to a hole provided at each end of a plurality of cross belts arranged in opposite directions on the outside of the tire. This is because a hook portion having an inverted U-shaped curved portion is inserted through the hook portion.

(Example) Embodiments of the present invention will be described with reference to the drawings.

The present invention resides in that the mounting bracket 12 for connecting the elastic member 11 and the tightening rope 7 of the conventional tire skid device C shown in FIGS. 4A, B, and C is improved, and the other features are the same. Therefore, only the relevant portion will be explained with reference to the drawings.

As shown in FIGS. 1A and 1B, the mounting bracket 13 is
S having curved parts 13a and 13b on the upper and lower sides
The letter-shaped portion and the hook portion 13c, which has a curved portion 13c ₁ that rises continuously from the tip of the lower curved portion 13b and is bent in an inverted U shape above the upper curved portion 13a, are integrally formed from a steel plate. ing.

Thus, the upper curved portion 13a of the mounting bracket 13 is attached to each U-shaped portion 11a at both ends of the elastic member 11 hooked to the hole 10c provided at the tip of the single leg 10a and the branched leg 10b of the cross belt 10. is inserted, the tightening rope 7 is inserted through the lower curved portion 13b, and the curved portion 13c ₁ of the hook portion 13c is inserted into the hole 10c.

That is, the mounting bracket 13 connects the elastic member 11 hooked to the cross belt 10 and the tightening rope 7 through the S-shaped portion, and also connects the cross belt 10 itself to the tightening rope 7 through the hook portion 13c. It is something.

Therefore, even if the elastic member 11 breaks while the car is running, the hook portion 13 of the mounting bracket 13
The curved part 13c ₁ of c is the hole 10c of the cross belt 10
The cross belt 1 is hung from the tightening rope 7.
0 will never deviate.

(effect) The present invention has the following effects.

A mounting bracket was used to connect the tightening rope to the elastic member hooked to the end of the cross belt located outside the tire, and also to connect the cross belt itself to the tightening rope. (a) Cutting of the elastic member was easy. Even if this occurs, the cross belt can be prevented from coming off from the tightening rope.

(b) the elastic member functions as a conventional tightening band;
Each cross belt can be uniformly tightened to the outer peripheral surface of the tire, and can be easily attached to the tire.

[Brief explanation of the drawing]

Figure 1 shows the main parts of the cross belt of the tire skid device according to the present invention, Figure A is a plan view, Figure B is a side view, and Figure 2 shows the main parts of a conventional tire skid device. 3 is a plan view showing the main parts of another conventional tire skid device, FIG. 4 shows its cross belt, FIG. A is a plan view, FIG. B is a side view, and FIG. FIG. 2 is a perspective view of an elastic member. A...Tire stopper, 3...Inner member, 7...
Tightening rope, 8... Rope tightening fitting, 10... Cross belt, 11... Elastic member, 13... Mounting bracket, 13c... Hook portion, 13c ₁ ... Curved portion.

Claims (1)

[Scope of Claim for Utility Model Registration] A plurality of cross belts formed from synthetic rubber or the like in a cross shape are attached to an inner member via hooks in parallel in opposite directions alternately, and the plurality of cross belts are located on the outside of the tire. A hook part having an inverted U-shaped curved part that is inserted into the hole provided in the cross belt is provided on the mounting bracket connecting the elastic member and the tightening rope that are latched to the hole provided at each end. A tire skid device characterized by: