JPH0635690Y2 - Tightening device for anti-slip device for tires - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention is mounted on the outer peripheral surface of a tire anti-skid device that is mounted on the tire outer peripheral surface to form one or a plurality of joints in the circumferential direction. The present invention relates to a tightening device.

<Prior Art> As a tightening device for this kind of tire anti-slip device, there is one disclosed in Japanese Patent Application No. 61-158339 filed by the present applicant (see FIG. 14). This tightening device (F) is formed on the outer circumference of the center ring (21) to have substantially the same thickness, and has a plurality of connecting arms (2).
2) is projectingly provided, and an outer ring (23) is provided over the outer end of each connecting arm (22), which is attached along the outer edge of the tire slip stopper wound around the tire outer peripheral surface. By hooking the outer ring (23) on the hook metal fitting (24),
Even if the outer ring (23) expands, the central ring (21) and the connecting arm (22) pull the outer ring (23) toward the center and allow the non-slip device to adhere to the tire. ing.

Then, when the centrifugal force generated during running increases, the anti-slip device tries to expand and the adhesion force to the tire begins to decrease, but the outer ring (23), the center ring (21), and the connecting arm (22) are Against this, the side edge of the anti-slip device is strongly pulled into the center of the tire to firmly maintain the adhesion of the anti-slip device to the tire.

However, as shown in FIG. 15, as the tire (C) rotates at high speed and the centrifugal force further increases, the slip stopper (B ″)
The joint part connecting the both ends of the non-slip device is particularly the joint part between the connecting arm (22) and the outer ring (23) located in the vicinity of (G) and the connecting part between the center ring (21). May spread to the outside and the joint (G) may rise, causing the tire (C) to slip and the hook fitting (2
There is a possibility that 4) may contact the tire (C) or the vehicle body and damage them, or that the anti-slip device (B ″) may contact the vehicle body and damage each other.

<Technical problem to be solved by the invention> The technical problem of the present invention is to prevent slippage by mounting on a tire and forming one or a plurality of joints in the circumferential direction while maintaining the operability of the tightening device. The object is to prevent lifting of the tool in the centrifugal direction during traveling of the joint portion.

<Means for Solving the Technical Problem> The technical means provided by the present invention for solving the above problem includes a center ring and a plurality of tension arm rods protruding from the outer periphery of the center ring. In the tightening device for a tire anti-slip device, the tensile stress of the tension arm rod located closest to the joint portion of the center ring and the tire anti-slip device is appropriately increased as compared with other tension arm rods. It is characterized by having a thicker cross-sectional area.

<Operation> After the anti-slip device is wound around the outer peripheral surface of the tire and the ends thereof are connected to each other, the cross-sectional area is increased so as to increase the tensile stress when the tightening device is mounted and the tire outer surface is faced. A thickened pull arm is attached along the outer edge of the cleat so that it is located closest to the joint of the cleat.

In this state, the center ring and each pulling arm rod pull the slip stopper toward the center of the tire through the outer ring and bring them into close contact with the outer peripheral surface of the tire.

At high speeds, the joint part of the anti-slip device tries to expand outward as the centrifugal force increases, but the tensile arm rod with a thick cross-sectional area so that the tensile stress is appropriately increased and also the tensile stress By cooperating with a thicker center ring to increase the force, it resists this spreading force with a strong force and strongly pulls the joint part toward the tire center through the outer ring.

<Effect of the Invention> Since the present invention is configured as described above, the pulling arm rod having a thick cross-sectional area so that the tensile stress is appropriately increased is closest to the joint portion of the anti-slip device wound around the tire. By mounting the tightening device along the outer peripheral edge of the anti-slip device so that it is positioned, the joint part of the anti-slip device increases centrifugal force during high-speed traveling while maintaining operability during installation. Therefore, even if it tries to float above the tire outer peripheral surface, the tension arm rod formed thick so that the tensile stress is appropriately increased and the center ring whose cross-sectional area is also increased so that the tensile stress is increased cooperates with each other. With a stronger force, the joint part is pulled strongly toward the center of the tire through the outer ring, which allows the entire anti-slip device to be kept in close contact with the outer peripheral surface of the tire. It is possible to prevent the joint portion of the tool from floating.

Therefore, it is possible to prevent the risk of the tire slipping, the possibility that the metal fittings of the anti-skid tool may damage the tire and the vehicle body, and the anti-skid tool may come into contact with the vehicle body to be mutually damaged.

Therefore, the initial purpose can be achieved.

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings.

In the figure, (A ₁ ) to (A ₁₀ ) are tightening devices formed by using a member that expands and contracts while generating elasticity, such as rubber or an appropriate synthetic resin, for example, a tire as shown in FIG. When the anti-slip device (B) for use is wound around the tire (C) as shown in FIG. 2 and attached, the anti-slip device is attached to the outer edge of the anti-slip device (B). (B) is to be fastened to the tire (C).

The tightening device (A ₁ ) shown in FIG. 1 has an outer ring (3) attached to the outer edge of the slip stopper (B) and the outer ring (3).
And a plurality of tension arm rods (2) and (2 ') connecting the outer ring (3) and the center ring (1). And
One of the center ring (1) and the tension arm rods (2) (2 '), that is, the tension arm rod (2') located closest to the joint portion (G) of the slip stopper (B) is It is formed so that its cross-sectional area is appropriately thicker than that of the other tension arm rods (2) and the tensile stress is increased.

The center ring (1) is appropriately formed to have a smaller diameter than the outer ring (3), and the tensile stress is increased by forming the cross-sectional area larger than that of the tension arm rod (2) as described above, so that the tensile stress is increased during use. The outer ring (3) can be strongly pulled toward the center of the tightening device (A ₁ ) via the arm rods (2) (2 ′).

The pulling arm rods (2) and (2 ') are radially projected from the outer periphery of the center ring (1).
(2 ') connects both rings (1) and (3) to form a concentric shape.

As described above, one pulling arm rod (2 ') having a thick cross-sectional area is used when the arm rod (2') and the outer ring (3) are used.
It is configured so that the connecting portion with and can be pulled toward the center ring (1) side more strongly than in the case of the other pulling arm rod (2).

The above-mentioned thick formation also includes those having a large cross-sectional area such as a large diameter, a large thickness, and a wide width so that the tensile stress is large and the tightening force is large.

(B) shown in FIG. 3 is a net-type non-slip device,
The net main body (b) formed in the shape of an oblique lattice is provided with connecting bands (4) and (4) at one end, and at the other end, a connecting port part (5) for inserting and connecting the connecting bands (4) and (4). )
(5) is formed, a non-stretchable tightening rope (6) is attached along the inner edge of the main body (b), and a tightening device (A ₁ ) is hooked and attached to the outer edge. For this purpose, hooking hooks (7) are attached at equal intervals. The slip stopper (B) is not limited to the one shown in the figure, and may be a butt type in which connecting bands are provided at both ends.

In order to mount the slip stopper (B) shown in FIG. 3 on the outer circumference of the tire (C), the slip stopper (B) is wound around the outer peripheral surface of the tire (C) and is connected to one end side. Obi (4)
(4) is inserted into the connection port (5) (5) on the other end side to connect both ends of the slip stopper (B) and further connect both ends of the inner tightening rope (6) to the net body. Place it by tightening the inside of (b).

This tightening device (A ₁ ) has an appropriate number of ring-shaped rubber bands (D)
(See FIG. 2), the rubber band (D) is sequentially hooked along the hooks (7) attached to the outer edge of the slip stopper (B), The slip stopper (B) is accurately set on the tire (C) and preliminarily tightened.

After that, the outer ring (3) of the tightening device (A ₁ ) is hooked along the hooks (7) similarly to the rubber band (D). At this time, the pulling arm rod (2 ') formed thick is set so as to be located closest to the joint part (G) connecting both ends of the slip stopper (B).

Then, as shown in FIG. 2, each tension arm rod (2) (2 ') and the center ring (1) cooperate with each other against the outer ring (3) which is about to extend, and By pulling the outer ring (3) toward the center of the tire (C), the slip stopper (B) is firmly adhered to the tire (C).

When a centrifugal force is applied during traveling, the slip stopper (B) tries to expand, but the outer ring (3) and the tension arm rods (2) (2 ')
By the pulling force of the center ring (1) toward the center, the close contact state of the slip stopper (B) with the tire (C) is maintained. When the centrifugal force is further increased, the slip stopper (B)
A greater outward force is applied to the joint part (G) of the outer ring (3), and the part of the outer ring (3) attached near the joint part (G) tries to expand outward, and accordingly the joint. Although the part (G) tries to float up, the pulling arm rod (2 ') formed on the vicinity of the part (G) and formed appropriately thick
Through the outer ring (3) through a stronger force against the expansion of the outer ring (3) in cooperation with the similarly thick central ring (1). ) Is pulled in toward the center of the tire (C) with a strong force, and the non-slip device (B) is held in a state in which it is strongly adhered to the tire (C).

Further, the pulling arm rods (2) (2 ') and the center ring (1) close the outer opening (E) of the anti-skid device (B), so that when the misalignment phenomenon occurs, the tire is pushed through the opening (E). (C) It is possible to reliably prevent the outer peripheral portion from popping out.

The tightening device (A ₂ ) shown in FIG. 4 is the above-mentioned tightening device (A ₁ ).
In the same manner, the tension arm rod (2 ′) formed symmetrically to the pull arm rod (2 ′) formed thick in the same manner is formed to be thick appropriately to the direction toward the center of the connecting portion with the outer ring (3) which is also symmetrically located. It is configured to have a large tensile force.

Further, the tightening device (A ₃ ) shown in FIG. 5 has a center ring (1).
Further, the four tensile arm rods (2 ') positioned symmetrically are formed to have a larger cross-sectional area as compared with the other tensile arm rods (2).

In the case of the tightening devices (A ₂ ) and (A ₃ ) as described above, it is needless to say that the same is used for the slip stopper (B) shown in FIG. It is also suitable for a non-slip member that is divided and has a plurality of joints.

For example, as shown in FIG. 13, when the anti-slip device (B ') divided into four parts is attached to the tire (C), the joint parts (G) are present at four places, and this is caused during high speed running. 4 joint portions of the places a large lifting force by the (G) acts, a fifth clamping device shown in FIG. (a ₃₎ tensile four were thick formed using Ude杆(2 ') a slip instruments ( Each of the joints is attached by arranging and mounting it in the vicinity of the four joint parts (G) of B ′), and by four pulling arm rods (2 ′) and a center ring (1) each having a large cross-sectional area as described above. It is possible to prevent the part (G) from rising.

The tightening device (A ₄ ) shown in FIG. 6 is obtained by appropriately reducing the number of pulling arm rods (2) in the tightening device (A ₁ ) shown in FIG.

The tightening device (A ₅ ) shown in FIG. 7 has a double center ring (1) and connects the first ring (1a) and the second ring (1b) with an inner connecting arm (1c). , Second ring (1b)
Is connected to the outer ring (3) through the pulling arm rods (2) and (2 '), and the second ring (1b) and the pulling arm rod (2') at an appropriate position are appropriately thickened. There is. By appropriately increasing the number of rings of the center ring and the number of connecting arms in this way, the tightening force of the anti-skid device and the above-mentioned popping-out preventing function of the tire outer peripheral portion can be further enhanced. in this case,
The first ring (1a) and the inner connecting arm (1c) at appropriate positions may be appropriately thickened.

The tightening devices (A ₆ ) and (A ₇ ) shown in FIGS. 8 and 9 have a plurality of tension arm rods (2) (2 ′) on the outer periphery of the center ring (1).
Is formed by projecting radially, and a hooking hole (2a) is provided at the tip of each pulling arm rod (2) (2 '),
The one or more pulling arm rods (2 ') located closest to the center ring (1) and the joint part (G) of the slip stopper (B) are compared with other pulling arm rods (2). The cross-sectional area is appropriately thickened. Such a tightening device (A ₆ ) (A ₇ ) is designed so that the thickened pulling arm rod (2 ′) is positioned closest to the joint part (G) when it is attached to the slip stopper wound around the tire. In this state, the hooking holes (2a) of the pulling arm rods (2) and (2 ') are hooked and attached to the hooking hooks (7) provided on the outer edge of the slip stopper ( (See FIG. 2).

The tightening device (A ₇ ) shown in FIG. 9 is effective for a slip stopper in which the joint portion (G) is present at two places.

Tightening device (A ₈ ) (A ₉ ) (A ₁₀ ) shown in Figs. 10 to 12
Is a tension arm rod (2) in which an inner center ring (1) and an outer ring (3) are continuously arranged in a V shape or an inverted V shape.
One or a plurality of pulling arm rods (2) located closest to the joint part (G) of the center ring (1) and the slip stopper (B), which are configured by being connected by (2 '). ′) Is formed so that its cross-sectional area is appropriately thicker than the others. And when installing on the anti-slip device wound on the tire,
With the thickly formed pulling arm rod (2 ') positioned closest to the joint portion (G) of the anti-slip device, the outer ring (3) is appropriately positioned so that each hook (7) on the outer edge of the anti-slip device is positioned. ) And attach it (see Fig. 2).
In such a tightening device (A ₈ ) (A ₉ ) (A ₁₀ ), when a pair of adjoining tension arm rods are formed thick, a pair of C-shapes may be formed or a pair of inverted C-shapes may be formed. But it is okay.

The tightening device of the present invention can of course be used for a ladder-type non-slip device (not shown), and may be used alone or in combination without being used together with a rubber band.

As described above, the present invention is provided with the center ring and the plurality of tension arm rods projecting from the outer periphery of the center ring, and the tension arm rod closest to the joint portion of the center ring and the anti-slip device is provided. , Any structure may be used as long as the cross-sectional area is appropriately thicker than other tension arm rods,
The present invention is not limited to the above embodiment.

[Brief description of drawings]

1 is a front view showing a tightening device embodying the present invention, and FIG.
FIG. 3 is a front view showing a mounting state of the fastening device, FIG. 3 is a plan view of a slip stopper for a tire, and FIGS. 4 to 12 are front views showing fastening devices of different embodiments from each other. , Fig. 13 shows the fifth
The front view showing the state of the fastening device shown in the figure when mounted and running, FIGS. 14 and 15 show a conventional example, FIG. 14 is a front view of the fastening device, and FIG. 15 is the fastening device. It is a front view showing a state at the time of running after wearing. A ₁ , A ₂ , …… A ₁₀ : Tightening device, B, B ′: Anti-slip device for tire, 1: Center ring, 2, 2 ′: Tension arm rod

Claims (1)

[Scope of utility model registration request] 1. A tightening device which is attached to an outer peripheral surface of a tire and is attached to a slip stopper for a tire which forms one or a plurality of joints in a circumferential direction, the center ring and a protrusion on an outer circumference of the center ring. It is equipped with a plurality of tension arm rods, and its cross-sectional area is set so that the tensile stress of the tension arm rod and the center ring located closest to the joint part of the above-mentioned anti-slip device is larger than that of other tension arm rods. Tightening device for anti-skid devices for tires characterized by being thickened.