JPH0356085Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a tightening device for a tire slip stopper.

(Prior art) Conventionally, the tightening device shown in Fig. 6 is installed along the outer edge of the anti-slip device for a tire wrapped around the tire and tightens the anti-slip device against the tire. There is a patent application No. 158339/1983 (Japanese Patent Application No. 13804/1983).

This tightening device B is made of rubber or the like, and includes a required number of connecting arms 32 protruding from the outer periphery of the ring 31, and an operating ring 33 provided at the outer end of the connecting arms 32. There is. When attached to the anti-slip device D wrapped around the tire C as shown in FIG. It is used by hooking the operating ring 33.
This tightening device B has a property of generating strong elasticity when the operating ring 33 is expanded, and prevents the anti-slip device D from expanding due to the centrifugal force generated during driving, and provides tight adhesion to the tire. It also has the effect of preventing the anti-slip device D from falling off the tire when a misalignment phenomenon occurs.

The misalignment phenomenon of the anti-slip device D is caused by the excessive load that occurs when the anti-slip device D is forced to drive.
This is a phenomenon in which the tire deviates greatly in the radial direction of the tire, and when this misalignment phenomenon becomes severe, the radially displaced non-slip device D falls into the inside of the tire C, and at the same time the outer circumference of the tire C It may pop out from the opening 36 on the outside of D and fall off.

The tightening device B, which is installed so as to cover the opening 36 of the anti-slip device D, prevents the outer circumference of the tire from protruding from the opening 36 in the above state, and prevents the anti-slip device D from slipping out of the opening 36 due to misalignment. This prevents the slip stopper D from falling off even if it deviates significantly in the radial direction, thereby avoiding danger.

(Technical issue) The present invention is an improvement of the aforementioned tightening device.
The technical challenge is to improve the function of preventing the tire from spreading due to centrifugal force and the function of preventing the tire peripheral surface from popping out from the outside opening of the anti-slip device. The purpose is to improve the adhesion of the tool and to more reliably prevent the slip-stop tool from falling off due to misalignment.

(Means for solving the technical problems) The means taken by the present invention to solve the above-mentioned technical problems are: an outer ring attached along the outer edge of a tire anti-slip device attached to the outer peripheral surface of the tire;
The outer ring is formed to have a predetermined length and a smaller diameter than the outer ring, a tightening ring provided concentrically with the outer ring, and a required number of connecting fittings for connecting the tightening ring and the outer ring. The non-stretchable member is formed to have a diameter somewhat larger than the diameter of the outer edge of the anti-slip device, and the tightening ring is formed using a member that expands and contracts while producing elasticity.

(Function) According to the above means, when the outer ring is attached along the outer edge of the anti-slip device that is wound around the outer peripheral surface of the tire, the tightening ring is pulled by each connecting fitting and expands. The elasticity generated in the tightening ring thereby pulls the outer ring toward the center of the ring via the connecting fitting, and brings the anti-slip device into close contact with the tire.

As the centrifugal force generated during travel increases, the outer ring and the anti-slip device begin to expand against the elasticity of the tightening ring. Along with this, the adhesion of the anti-slip device to the tire begins to decrease, but when the non-stretchable outer ring is fully tensioned, the centrifugal force on the anti-slip device tightened by this outer ring increases from then on. It does not spread even when it is applied, and the adhesion to the tire is maintained above the required value.

Further, the connecting fitting and the tightening ring close the outer opening of the anti-slip device in the installed state, and in particular, the connecting fitting prevents the tire outer circumferential portion from protruding from the opening when a misalignment phenomenon occurs without stretching.

(Effects) Since the present invention is as described above, even when a large centrifugal force is applied to the anti-slip device, the expansion of the anti-slip device is maintained in its initial state, and the adhesion of the anti-slip device to the tire is improved. can be kept above the required value at all times. Therefore, it is possible to eliminate misalignment of the anti-slip tool, and to prevent the anti-slip tool from being cut or falling off due to this misalignment.

In addition, it prevents the outer opening of the anti-slip tool from expanding beyond a certain limit, and since this opening can be closed by the tightening ring and the connecting fitting that does not stretch, the anti-slip tool prevents misalignment from occurring. Even when the outer circumferential part of the tire tries to protrude from the outer opening of the tire, the protrusion of the tire can be firmly restrained by the above-mentioned tightening ring and the connecting fitting, thereby preventing slippage caused by misalignment. It is possible to reliably prevent the stopper from falling off.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

A in the figure is a tightening device, which is used to tighten the anti-slip device D when wrapping the anti-slip device D for a tire as shown in FIG. 5 around the tire C as shown in FIG. 2. The anti-slip device D is attached to the outer edge and tightened against the tire C.

The tightening device A includes an outer ring 1 attached to the outer edge of the anti-slip device D, a tightening ring 2 provided concentrically with the outer ring 1, and the outer ring 1 and the tightening ring 2.
and a connecting fitting 3 that connects the two.

The outer ring 1 is formed into a ring shape using a non-stretchable rope or wire, and its diameter is equal to the outer edge of the anti-slip device D wrapped around the tire C when the ring 1 is expanded. The diameter G is slightly larger than the diameter G at the position where the tightening device A is attached.

The tightening ring 2 is made of a member such as rubber or a spring that expands and contracts while producing elasticity, and is formed to have a smaller diameter than the outer ring 1. The illustrated tightening ring 2 is made of rubber and has a smaller diameter than the outer ring 1. The diameter is approximately 0.4 times that of the

The above-mentioned outer ring 1 and tightening ring 2 are connected by a required number of connecting fittings 3, for example, five. These connecting fittings 3 have a length that allows the tightening ring 2 to expand to an appropriate degree when the outer ring 1 is attached to the outer edge of the anti-slip device D as shown in Fig. 2. Bend both ends into a hook shape and attach the outer ring 1.
and the tightening ring 2, respectively, and are fixed by caulking.

When both rings 1 and 2 are connected using the above-mentioned connecting fitting 3, the connecting part of the outer ring 1 is pulled inward and deformed as shown in FIG. are the connecting positions of the outer ring 1 determined at equal intervals and the corresponding tightening ring 2.
By connecting the connecting position to the connecting fitting 3, it is made to be accurately concentric.

D shown in FIG. 5 is a net-type anti-slip tool, and one end of the net main body D' formed in a diagonal grid shape is provided with connecting bands 6, 6, and the other end is provided with connecting bands 6, 6, 6 is inserted to connect the connecting part 7,
A non-stretchable tightening rope 8 is attached along the inner edge of the main body D′, and hooks 9 for hooking and attaching the tightening device A are arranged at equal intervals on the outer edge. It is installed and configured.

In addition, in the anti-slip tool D having the above configuration, the diameter G of the mounting position of the tightening device A on the outer edge is the diameter of the circular arc connecting the hooking portions of each of the hooks 9 attached to the outer edge. The outer ring 1 of the tightening device A intended for this anti-slip tool D is designed to have a diameter just large enough to be able to be hooked onto each of the hooks 9.

When attaching the anti-slip device D to the tire C, wrap the anti-slip device D around the circumference of the tire C, insert the connecting bands 6, 6 into the connecting parts 7, 7 to connect both ends, and then Connect both ends of the tightening rope 8 and tighten the inside of the net body D'.

The tightening device A is used together with two ring-shaped rubber bands F. This rubber band F is attached to each latch hook 9 attached to the outer edge of the anti-slip device D in the above state.
This is to set the anti-slip device D against the tire accurately and to preliminarily tighten it.

Thereafter, the outer ring 1 of the tightening device A is hooked along each hook 9 in the same manner as the rubber band F.

The tightening ring 2 is expanded into a pentagonal shape as shown in FIG. Place it in close contact with the

While driving, when the centrifugal force generated in the anti-slip device D exceeds the tightening force of the tightening ring 2 and the two rubber bands F, the outer ring 1 expands as shown in Fig. 4, and the anti-slip device against the tire C The adhesion of D begins to decrease. However, when the non-stretchable outer ring 1 is fully tensioned, the anti-slip device D stops spreading and the adhesion force to the tire C is maintained above the required value.

In addition, the five connecting fittings 3 and the tightening ring 2 close the outer opening E of the anti-slip device D, and reliably prevent the outer periphery of the tire C from popping out from the opening E when misalignment occurs. It is possible.

Incidentally, the above-mentioned tightening device A can of course also be used as a ladder-type anti-slip device (not shown), and it may also be used alone or in combination with the rubber band F. . Furthermore, tightening device A
The members of the outer ring 1, the members of the tightening ring 2, the diameter, the thickness, and the length and configuration of the connecting fitting 3 are set according to the usage conditions and purpose, and are not limited to the above-mentioned conditions.

[Brief explanation of drawings]

Fig. 1 is a front view showing a tightening device embodying the present invention, Fig. 2 is a front view showing the tightening device in an installed state, Fig. 3 is a sectional view taken along the - line in Fig. 2, and Fig. 4 is a front view showing the tightening device in which the invention is implemented. Fig. 5 is a partially cutaway front view showing the anti-slip device, Fig. 6 is a front view showing the conventional tightening device, and Fig. 7 is the conventional tightening device. FIG. 3 is a front view showing a state in which the device is installed. In the diagram, A...tightening device, C...tire, D...
Anti-slip device, 1...Outer ring, 2...Tightening ring.

Claims (1)

[Scope of utility model registration request] An outer ring attached along the outer edge of the anti-slip device for tires attached to the outer peripheral surface of the tire, a tightening ring formed with a predetermined length and smaller diameter than the outer ring and provided concentrically with the outer ring, and the tightening ring described above. It consists of a required number of connecting fittings that connect the ring and an outer ring, the outer ring is made of a non-stretchable member and has a diameter somewhat larger than the diameter of the outer edge of the anti-slip device, and the tightening ring is made of an elastic material. A tightening device for a tire anti-slip device formed using a member that expands and contracts while causing vibrations.