JPH034561Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is a tire that can be attached to the tires of automobiles running on snowy or frozen roads to prevent tire slippage and ensure proper running of the automobile. This invention relates to an anti-slip device.

(Prior Art) Conventionally, anti-slip devices for tires include a steel cable that contacts the inner surface of the tire in an annular manner and a steel cable that contacts the outer surface of the tire in an annular manner in order to particularly facilitate installation work. The steel cable and the chain member have a predetermined interval in the circumferential direction and are connected to each other by a non-slip member spanning the tire, and the chain member is an elastic tension member. Therefore, a tire is known that is configured to be attached to the tire in a state where it is always biased in the radially inward direction.

This type of anti-slip device for tires is installed, for example, on the road surface, then the vehicle is moved forward or backward, the tire is placed in the center, and both ends are lifted and connected to each other near the top of the tire. Compared to anti-slip devices for tires that are designed to be installed, this device has the advantage of being easier to install and has excellent installation workability.

However, since the length in the circumferential direction when the steel cables are connected in an annular shape remains constant, it can only be attached to tires with a predetermined outer diameter, and cannot be attached to tires with different outer diameters. There are problems with usage restrictions. It also had the disadvantage that it was difficult to easily connect the steel cables in a ring shape. This idea was made to solve the above-mentioned conventional problems. It can be mounted on multiple types of tires with different outer diameters, eases restrictions on use, and allows both ends of the steel cable to be engaged easily and quickly. The purpose of the present invention is to provide an anti-slip device for tires.

In order to achieve the above object, this invention forms a cylindrical shape with an open bottom at one end of the steel cable that comes into contact with the inside of the tire, and has a plurality of small diameter constrictions 10b at predetermined intervals in the axial direction. Provided, this constriction 10
The locking fitting 10 formed as locking recesses 11 ₁ to 11 ₄ between b is fixed, and the locking fitting 10 having a plurality of locking recesses formed in tandem in the axial direction is fixed, and the other end of the steel cable is fixed. is provided with a locking protrusion that can be freely engaged with each of the plurality of locking recesses of the locking fitting, and the locking protrusion is connected to one locking recess selected according to the outer diameter of the tire. The steel cable is engaged with the tire to change the length of the steel cable in the circumferential direction, that is, the curvature of the steel cable formed when attached to the tire.

Embodiments of this invention will be described below with reference to the drawings.

Figure 1 is an outside view showing the tire slip prevention device according to this invention installed on a tire;
The figure shows an inner side view of the same, and in these figures, a steel cable 2 is connected in a ring shape and abuts on the inner surface of the tire 1, and a chain member 3 is connected in a polygonal ring shape and abuts on the outer surface. . The steel cable 2 and the chain member 3 are spaced apart from each other by a predetermined distance in the circumferential direction, and are connected to each other by a non-slip member 4 that straddles the tread 1a of the tire 1.

Reference numeral 5 denotes an elastic tension member, which is made of annular rubber in this embodiment, and is connected to the chain member 3 through a hook 6.
is connected to. Therefore, chain member 3
is constantly maintained by the tire 1 due to the contraction force of the elastic tension member 5.
The device is biased in a radially inward direction, thereby maintaining the attached state of the device.

As shown in FIG. 3, the steel cable 2 and the anti-slip member 4 are connected to each other on both sides of the regulating member 7 fixed to the steel cable 2 so as to be rotatable only in the circumferential direction of the cross section of the steel cable 2. The portion of the steel cable 2 between the plurality of hooks 8 is covered with a cover member 2A made of a synthetic resin tube.

The anti-slip member 4 is a Y-shaped unit formed by a ring chain and is provided at a predetermined interval in the circumferential direction of the steel cable 2 and the chain member 3, and is connected to the chain member 3 by a bifurcated hook. It is done through 9.

A locking fitting 10 is fixed to one end of the steel cable 2, as shown in FIG. This locking metal fitting 10 is formed by press working a steel plate into a cylindrical shape with an open bottom, and is fixed to one end of the steel cable 2 by a stopper part 10a, and has small diameter constrictions at a predetermined interval in the axial direction. portions 10b are provided, and these constricted portions 10b
The spaces between them are defined as locking recesses 11 ₁ , 11 ₂ , 11 ₃ , and 11 ₄ . That is, the locking fitting has a plurality of locking recesses 11 ₊ to 11 ₄ formed in tandem at predetermined intervals, and an opening 10c formed at one end. It also has an annular rubber fixing member 12 that can be selectively fitted onto each constriction 10b.

The other end of the steel cable 2 has an opening 10 of the locking fitting 10.
A locking protrusion 13 that can be releasably engaged with each of the plurality of locking recesses 11 ₁ to 11 ₄ is provided through c. This locking convex portion 13 is provided by fixing a metal cylindrical member, and its outer diameter is insertable into the opening 10c of the locking fitting 10 and is larger than the inner diameter of the constriction portion 10b, and Recessed part 1
The size is set such that it can be freely engaged and detached from the lower part of 1 ₁ to 11 ₄ .

As shown in FIG. 5, a ring 14 is attached to one end of the chain member 3, and a hook 16 is attached to the other end via a spring 15.
Therefore, as shown in FIG. 6, the hook 16 and spring 15 are inserted into the ring 14, and the
A hook 16 is removably hooked to the opposite side of the chain member 3 passing through the center of the chain member 3.

In the above configuration, as shown in FIGS. 1 and 2, the steel cable 2 is connected and abutted in an annular manner on the inner surface of the tire 1, and the chain member 3 is annularly connected and abutted on the outer surface of the tire 1, In addition, the anti-slip member 4 is installed in a state where it straddles the tread 1a.

In this case, the steel cable 2 is connected to the second locking recess 11 2 of the locking fitting 10, for example, as shown in FIG _.
It is obtained by engaging the locking convex portion 13 with the tire 1, and is properly mounted according to the outer diameter of the tire 1.

Locking protrusion 1 for the second locking recess 11 ₂
3, as shown in FIG. 8, the locking protrusion 13 is inserted through the opening 10c of the locking fitting 10, and the locking protrusion 13 is aligned with the lower side of the second locking recess ₁₁₂ . After that, _the fixing member 1 is pushed up in the direction of arrow A and engaged with the locking recess _{11 2 as} shown in FIG.
2 to maintain the engaged state of both 11 ₂ and 13 to prevent spontaneous separation.

On the other hand, when releasing the engaged state shown in FIG. 7 and removing the tire anti-slip device from the tire 1,
First, the fixing member 12 is inserted into the first locking recess 11, for example.
After moving the steel cable 2 to the constriction 10b between the _first and second locking recesses ₁₁₂ , the other end of the steel cable 2 is moved in the direction of arrow B, and the locking protrusion 13 is released from the locking recess ₁₁₂ . , and then by pulling it out through the opening 10c.

On the other hand, when the outer diameter of the tire 1 is larger than the tire 1 described in the above embodiment, the locking convex portion 13
Since the curvature of the steel cable 2 is increased by engaging the third locking recess 11 ₃ or the fourth locking recess 11 ₄ through the above procedure, the large diameter tire 1
Can be installed properly against. Further, if the outer diameter of the tire 1 is smaller than the tire 1 described in the above embodiment, the locking convex portion 13 is engaged with the first locking recess 11 ₁ by the same procedure as described above. By doing so, the curvature of the steel cable 2 becomes smaller, so the small diameter tire 1
Can be installed properly against.

Note that when the curvature of the steel cable 2 changes due to a change in the outer diameter of the tire 1, the length of the chain member 3 that contacts the outer surface of the tire 1 naturally changes, but this change is due to the change in the elastic tension member 5. It is absorbed by the interaction between the elasticity and the springiness of the spring 15.

As explained above, this invention has the advantage that it can be mounted on a plurality of types of tires with different outer diameters, and the restrictions on use are relaxed.

In addition, the present invention allows the steel cable to be easily engaged in an annular manner by the locking recesses 11 ₁ to 11 ₄ , the locking protrusion 13, and the fixing member 12 of the locking fitting 10 configured as described above. The anti-slip member 4 can be quickly placed over the tread portion of the tire 1. Similarly, when the above engagement state is released and the tire anti-slip device is removed from the tire 1, this can be done easily and quickly.

[Brief explanation of the drawing]

Figure 1 is an outside view showing the tire slip prevention device according to this invention installed on a tire;
The figure is an internal side view of the same, and FIG. 3 is a partial perspective view showing the connection of the anti-slip member to the steel cable and the chain member.
FIG. 4 is a perspective view of the locking metal fitting and the locking protrusion, FIG. 5 is a perspective view showing both ends of the chain member, FIG. 6 is a partial perspective view showing the chain member in a hooked state, and FIG. 7 8 is a perspective view showing an example of an engaged state of the locking metal fitting and the locking convex portion, and FIG. 8 is an explanatory diagram showing a procedure of the engaged state. 1...Tire, 1a...Tread, 2...Steel cable, 3...
Chain member, 4... Anti-slip member, 5... Elastic tension member, 10... Locking metal fitting, 10b... Constriction, 11
₁ to 11 ₄ ... Locking recess, 13... Locking convex portion.

Claims (1)

[Scope of utility model registration request] A steel cable 2 annularly abuts against the inner surface of the tire 1
and a chain member 3 annularly abutting against the outer surface of the tire 1, the steel cable 2 and the chain member 3 are spaced apart from each other by a predetermined distance in the circumferential direction, and the tire 1
The anti-slip device for a tire 1 is connected to each other by an anti-slip member 4 that straddles the tread 1a, and the chain member 3 is always urged radially inward by an elastic tension member 5 to be attached to the tire 1. It is formed into a cylindrical shape with an open lower part, and is provided with a plurality of small diameter constrictions 10b at predetermined intervals in the axial direction, and locking recesses 11 ₁ to 11 are provided between the constrictions 10b.
The locking metal fitting 10 formed as ₁₁₄ is attached to the steel cable 2.
A locking convex portion 13 is fixed to one end and is detachably engageable with each of the plurality of locking recesses 11 ₁ to 11 ₄ of the locking fitting 10 at the other end of the steel cable 2, This locking protrusion 13 and the locking recess 11
1. A tire slip prevention device characterized in that the steel cable 2 is held in an annular shape having a different curvature by engagement of any one selected from ₁ to ₁₁₄ .