JPH0532324Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a tire anti-slip device.

(Prior Art) As a tire skid device used by being attached to the tires of passenger cars, etc., a plurality of mesh-like skid pieces made of elastic material are provided in the circumferential direction of the tire. There is one in which the connecting bodies on both sides are connected to two elementary bodies on both the left and right sides via connecting tools.
For example, Utility Model Application No. 63-43912, Utility Model Application No. 63-43912,
It is disclosed in Publication No. 128106, etc.

(Problems to be Solved by the Invention) In this type of anti-slip device, the connecting body of each anti-slip piece simply extends straight from the anti-slip piece in both left and right directions, and is not inclined.

Therefore, especially when mesh-like anti-slip pieces are used, no matter how many anti-skid pieces are arranged at appropriate intervals in the circumferential direction of the tire, the mesh pattern of the anti-skid pieces cannot be made evenly in the circumferential direction of the tire. Therefore, a uniform anti-slip effect cannot be obtained in the circumferential direction of the tire, and the vibration of the vehicle tends to increase.

Therefore, it is conceivable to eliminate the above-mentioned drawbacks by providing the connecting bodies at both ends of each anti-slip piece in the tire circumferential direction so as to be obliquely inclined.

However, simply inclining the connecting bodies at both ends of the non-slip piece will result in two directions: the direction in which this connecting body pulls the non-slip piece, and the direction in which the other connecting bodies pull the non-skid piece, after it is attached to the tire. As a result of the misalignment, tensile forces in various directions act on the anti-slip piece, causing twisting and uneven wear of the anti-slip piece during running.

In view of these circumstances, the present invention provides an anti-slip device that can improve the anti-slip effect and reduce vehicle vibration without impairing the durability of each anti-slip piece.

(Means for Solving the Problem) As a means for solving the problem, the present invention provides a plurality of mesh-like anti-slip pieces 9 made of an elastic material in the circumferential direction of the tire 1, and each anti-slip piece 9 is provided on both left and right sides. In a tire anti-slip device in which connecting bodies 10, 11, and 12 are connected to two rope-like bodies 14 on both left and right sides via connectors 13, the tire 1 in each anti-skid piece 9 is
The connecting body 11 at the center in the circumferential direction is formed into a V-shape by a pair of diagonal members 11a that are inclined toward each other from the center side in the left-right direction toward the outside, and the circumference of the tire 1 in each anti-slip piece 9 is The connecting bodies 10, 12 at both ends in the direction are arranged so that the connecting bodies 10, 12 of adjacent anti-slip pieces 9 intersect with each other and the connecting bodies 10, 12 are located approximately on the same straight line with the diagonal member 11a. , is provided obliquely from the center side of the grounding portion 15.

(Function) Connection body 1 at both ends of mutually adjacent anti-slip pieces 9
0 and 12 extend diagonally from the center and cross each other, for example, as shown in FIG.
By arranging each anti-slip piece 9 in the circumferential direction of the tire at appropriate intervals L ₁ , L ₂ in consideration of the size of the mesh at the center of the anti-slip piece 9, a substantially continuous mesh can be created in the circumferential direction of the tire. Can be configured.

Moreover, the connecting body 11 at the circumferential center of each anti-slip piece 9
is formed into a V-shape by a pair of diagonal members 11a, and connecting bodies 10, 1 at both ends in the circumferential direction of each anti-slip piece 9
2 are located almost on the same straight line with respect to the diagonal member 11a, so the anti-slip piece 9
When the anti-slip pieces 9 are pulled, the tensile force generated in each non-slip piece 9 is directed in a certain direction (the extending direction of the connecting bodies 10, 11, 12), and each anti-slip piece 9 will not twist or wear unevenly after being installed. It is prevented from doing so.

(Embodiment) Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. In FIGS. 1 and 2, reference numeral 1 is a pneumatic tire for a passenger car, and from the tread portion 2 to the left and right there are shoulder portions 3 and sidewall portions 4. A bead portion 5 is extended, and the left and right bead portions 5 are fitted onto a rim 7 fixed to the disk 6.

Reference numeral 8 denotes a non-slip device that is used by being attached to the tire 1, and as shown in FIG.
Connecting bodies 10, 11, 12 on both left and right sides of
It is connected to two cable-like bodies 14 on the left and right through 3.

Each anti-slip piece 9 is made of an elastic material such as rubber or synthetic resin and has a mesh shape.
It has a width corresponding to the grounding portion 15, that is, the tread portion 2, and a plurality of spikes 16 are provided on the grounding surface side. Each anti-slip piece 9 has three connecting bodies 10, 11, 12 integrally formed with the same material on both the left and right sides, and these connecting bodies 10, 11, 1
2 is the non-grounding part 17 of the tire 1, that is, the shoulder part 3
and corresponds to the sidewall portion 4.

Among the three connecting bodies 10, 11, and 12, the connecting body 11 at the center in the tire circumferential direction is formed into a V-shape by a pair of diagonal members 11a that are inclined toward each other as they go from the center side in the left-right direction toward the outside. is formed.

In addition, the connecting bodies 10 and 11 at both ends have non-grounding portions 17
The connected bodies 10,
12 is formed in a diagonal direction so as to be inclined at an inclination angle α of approximately 40 to 60° with respect to the tire circumferential direction from the center of the ground contact portion 15 so that the diagonal member 12 is located approximately on the same straight line as the diagonal member 11a. There is.

A hole 18 is formed in the outer end of each connecting body 10, 11, 12 as shown in FIG.
Hook-shaped connectors 13 attached at predetermined intervals are hooked onto each cable-like body 14, respectively.

Each cable member 14 has a ring-shaped hook 19 at one end and a hook-shaped hook 20 at the other end that can be freely connected to and detached from the hook 19.
has. Furthermore, hooks 21 are provided at predetermined intervals on one of the cable-like bodies 14, and the hooks 21 are adapted to be hooked onto an endless elastic cable 22 when the anti-slip device 8 is attached to the tire 1. There is.

When attaching the anti-skid device 8 to the tire 1, each anti-skid piece 9 is wrapped around the tire 1 so as to correspond to the tread portion 2, and each rope-like body 1 is attached on both left and right sides of the tire 1.
After hooking the four hooks 20 onto the hook 19 to make it endless, the hook 21 of one of the cables 14 may be hooked onto the elastic cable 22 and tightened.

When the anti-slip device 8 is attached to the tire 1, a state as shown in FIG. 1 will be obtained. In this case, as shown in FIGS. 1 and 4, if the distance between the centers of adjacent anti-slip pieces 9 is _L1 , and the distance between the left and right sides is _L2 , then
A mesh formed by crossing the connecting bodies 10 and 12 at both ends of adjacent anti-slip pieces 9,
The intervals L ₁ and L ₂ are set so that the mesh size is approximately the same as that of the mesh arranged in the center of the anti-slip piece 9.

Therefore, even though a plurality of anti-skid pieces 9 are arranged in the circumferential direction of the tire, the mesh pattern of the anti-skid pieces 9 can be arranged evenly in the ground contact area 15 so that the mesh pattern is almost continuous, thereby making it possible to prevent slipping on snow. Not only does it provide a uniform anti-slip effect, but it also reduces vehicle vibration and improves riding comfort.

On the other hand, connecting bodies 10 and 12 at both ends of each anti-slip piece 9
are on the same straight line as the diagonal member 11a that constitutes the central connecting body 11, so that only a tensile force in a certain direction acts on each anti-slip piece 9, preventing each anti-slip piece 9 from being twisted or worn unevenly. You can prevent it from happening.

(Effect of the invention) As described above, according to the invention, the connecting bodies 10 and 12 at both ends of each anti-slip piece 9 extend obliquely from the center, and the central connecting body 11 Since the diagonal members 11a constituting the diagonal member 11a are located substantially on the same line, it is possible to improve the anti-slip effect and reduce vehicle vibration while preventing twisting and uneven wear of each anti-slip piece.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view of the installed state, FIG. 2 is an enlarged view of FIG. is a plan view of the unfolded state. DESCRIPTION OF SYMBOLS 1... Tire, 2... Tread part, 9... Anti-slip piece, 10, 11, 12... Connecting body, 11a...
Diagonal member, 13... Connector, 14... Cable body, 15...
...Grounded part, 17...Non-grounded part.

Claims (1)

[Claims for Utility Model Registration] A plurality of mesh-like anti-slip pieces 9 made of an elastic material are provided in the circumferential direction of the tire 1, and connecting bodies 10, 11, 12 on both the left and right sides of each anti-slip piece 9 are connected as a coupling device. In the tire anti-skid device which is connected to two rope-like bodies 14 on both the left and right sides via cables 13, the connecting body 11 of each anti-skid piece 9 at the center in the circumferential direction of the tire 1 is moved outward from the center in the left-right direction. It is formed in a V shape by a pair of diagonal members 11a that are inclined toward each other as they go toward each other, and connects bodies 10, 12 at both ends in the circumferential direction of the tire 1 in each anti-slip piece 9.
, the connected bodies 10 and 12 of adjacent anti-slip pieces 9
The tire slip is provided so as to be obliquely inclined from the center side of the ground contact portion 15 so that the connecting bodies 10 and 12 intersect with each other and are located approximately on the same straight line as the diagonal member 11a. Stopping device.