JPH02189208A - Antiskid device for tire - Google Patents

Abstract

PURPOSE:To facilitate the setting of a device so easily by connecting a tread member covering the tread surface of a tire and a cord member being set up on a back sidewall surface of the tire both to a support member being set up on an outer sidewall surface of the tire successively. CONSTITUTION:When tire antiskid device 10 is attached to a tire 20, first an opening of a support member 12 is inserted into a frame 41 of a fixed member 40 in a wheel 30, and then a lock ring 42 is inset in this frame 41, checking any axial movement of the support member 12. Next, a tread member 14 and a cord member 16 are put on a tread surface 22 other than the side of a ground plane of the tire 20 and a back sidewall surface 24. In succession, a vehicle is slowly started, and the tread member 14 and the cord member 16 both are retracted with rotation of the tire 20. Then, the whole surface of the tread surface 22 is covered with the tread member 14, while the cord member 16 is spread around the back sidewall surface 24 in a ring form.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tire anti-slip device which can be easily attached to and removed from a tire and which does not cause a decrease in anti-skid performance while a vehicle is running.

[Conventional technology]

For example, a ladder-type device is known as a conventional tire slip prevention device, but this device consists of band-shaped tread members made of non-metallic materials such as rubber arranged in parallel at intervals, and these tread members Both ends are connected to ropes, and after the tread member is placed over the tread surface of the tire, one rope is stretched around the outer surface (sidewall surface) on the back side of the tire in a ring shape. The rope is attached to the tire by connecting the hooks attached to both ends, stretching the other rope around the outer surface of the front side of the tire in a ring shape, and connecting the hooks attached to both ends.

[Problem to be solved by the invention]

Conventional tire slip prevention devices require the operation of connecting ropes to the front and outside of the tire as described above, so when attaching or removing them to or from a tire attached to a vehicle, it is necessary to connect the rope to the back of the tire. The disadvantage is that connecting and disconnecting the rope is troublesome and time-consuming.

In addition, depending on the outer rope and the back rope of this type of tire anti-slip device, it tends to be difficult to smoothly restrict the movement of the tread member in the tire width direction and follow the movement in the tire circumferential direction while the vehicle is running. As a result, the tread member may be misaligned or twisted with respect to the tread surface while the vehicle is running, and the performance is not always sufficient.

The present invention has been made for the purpose of providing a tire slip prevention device that eliminates the above-mentioned drawbacks.

[Means to solve the problem]

In order to achieve the above object, the tire slip prevention device of the present invention includes a disc-shaped or radial arm-shaped support member disposed on the front sidewall surface of the tire, and one end attached to the outer edge of the support member. a tread member that covers the entire circumference of the tread surface of the tire, and a string that is connected to the end of the tread member opposite to the support member side and arranged on the sidewall surface on the back side of the tire. It is equipped with a shaped member,
The supporting member is attached to the tire while being rotatably supported around the axis of the wheel, and the string-like member is connected in an endless continuous manner that is longer than the outer circumference of the tire. It has a configuration that can be adjusted to a loop that is shorter than the length and longer than twice the sum of the outer diameter and width of the tire.

[Effect]

When installing the tire slip prevention device of this invention on a tire, after installing the support member coaxially with the axis of the wheel, the tread member and the string member are connected to the tread surface and back side of the tire excluding the ground contact side. The tread member and the string-like member on the ground contact side of the tire are respectively placed along the tire.

When the vehicle is slowly started in this state, the tread member and the string-like member on the ground-contact side part are drawn into the back side of the tire as the tire rotates, and the tread member covers the entire circumference of the tread surface, and the string-like member is stretched around the sidewall surface on the back side of the tire in a ring shape, creating a tense state.

When removing the attached tire anti-slip device from the tire, loosen the tension so that the length of the string-like member is greater than the outer circumference of the tire, and remove the tread member from the tire tread surface. The supporting member is released from supporting the wheel and removed.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a longitudinal sectional side view showing an example of the tire slip prevention device 10 of the present invention mounted on a tire 20. As shown in FIG.

The tire slip prevention device 10 includes a support member 12 and a tread member 1.
4 and a string-like member 16. Support member 1
Reference numeral 2 has a circular disk shape with an opening at the center, but it may also have arms extending radially outward from a boss provided at the center. The tread member 14 is made of a plurality of band-shaped or mesh-shaped members made of an elastic non-metallic material such as rubber or urethane, and one end of the tread member 14 is tied to the outer edge of the support member 12. .

A string member 16 is loosely connected to the other end of the tread member 14. The string-like member 16 is made of a rope made of a non-stretchable material such as polyester, nylon, etc., which is longer than the outer circumference of the tire 20, and is connected in an endless continuous manner.

Among the plurality of tread members 14, at least one tread member is hollow and has a through hole in the tire width direction, and the string member 1 is inserted into the through hole of the hollow tread member.
6 is inserted through it and pulled out to the support member 12 side, so that the length of the string member 16 when the tire is mounted can be adjusted (not shown).

The support member 12 of the tire anti-slip device 10 described above is attached to the wheel 30 when attached to the tire 20.
1, a fixing member 40 having a shaft portion 41 is fixed by a nut 33.

Further, the length of the string-like member 16 of the tire anti-slip device 10 is adjusted in advance to the required tightening according to the outer circumferential length and width of the tire 20 to be mounted.

That is, in FIG. 2, when the outer circumference of the tire 20 is calculated and the width of the tire 20 is W, the length L of the string member 16 is the length of the range shown by πD>L>2 (D+W). Pull the part pulled out to the support member 12 side through the hollow tread member so that it becomes a loop shape, and attach a detent (not shown) to the pulled out part so that the adjusted length does not change. That's how it is.

When installing the tire slip prevention device 10 having the above configuration onto the tire 20, first, the opening of the support member 12 is attached to the wheel 3.
After the support member 12 is inserted into the shaft portion 41 of the fixing member 40 of No. 0, the lock ring 42 is fitted into the shaft portion 41 to prevent the support member 12 from moving in the axial direction. As a result, the support member 12 is attached to the wheel 3
The wheel 30 is supported coaxially with the wheel 30 and can rotate around the axis of the wheel 30.

Next, the tread member 14 and the string-like member 16 are placed over the tread surface 22 of the tire 20 excluding the ground-contacting side portion and the sidewall surface 24 on the back side, and the tread-like member 14 and the string-like member 16 on the ground-contacting side portion of the tire 20 are covered. are placed along the front side of the tire 200 (see FIG. 3).

In this state, if you start the vehicle slowly, the tire 20
As the tire 20 rotates, the tread member 14 and the string-like member 16 on the ground-contacting side of the tire 20 are drawn from the front side to the back side of the tire 20, and the tread member 14 covers the entire surface of the tread surface 22.
The string-like member 16 is stretched around the sidewall surface 24 on the back side in a ring shape to maintain an appropriate tension state.

The tire slip prevention device 10 installed in this way is
Support member 12 rotatably supported with respect to wheel 30
Since one end of the tread member 14 is attached to the tread member 14, the movement of the tread member 14 in the width direction of the tire while the vehicle is running is controlled, and the movement of the tread member 14 in the circumferential direction of the tire is also supported. Since the member 12 and the string member 16 follow each other smoothly, the tread member 14 will not be misaligned or twisted while the vehicle is running.

When removing the tire anti-slip device 10 attached to the tire, the string-like member 1 pulled out to the support member 12 side
Release the detent 6 to loosen the tension, and then tighten the tire 2.
The string-like member 16 on the sidewall surface 24 on the back side of 0
is longer than the outer circumference of the tire 20, and then the tread member 14 is removed from the tread surface 22 of the tire 20, and the shaft portion 4 of the fixing member 40 of the wheel 30 is removed.
After removing the lock ring 42 fitted into the support member 12, the support member 12 is removed.

In the above embodiment, the tread member is made of non-metallic material,
Although the case where the string-like member is a rope has been described, the present invention can also be applied to a tire slip prevention device in which the tread member and the string-like member are made of a metal chain. When the tread member is a metal chain, a metal pipe may be used, for example, as the hollow tread member for pulling out the string-like member toward the support member.

Further, the mechanism for rotatably supporting the support member on the wheel is not limited to that of the above embodiment (other mechanisms equivalent to this may be used).

〔Effect of the invention〕

As explained above, according to the present invention, a disk-shaped or radial arm-shaped support member is arranged rotatably with respect to the wheel on the front sidewall surface of the tire, and is arranged on the backside sidewall surface of the tire. The string-like member provided is attached to the tire in a loop-like state that has been adjusted to a predetermined length, and when removed from the tire, it is configured so that it can be adjusted to a length longer than the outer circumference of the tire. It can be easily attached and detached from the tire mounted on the vehicle by operating from the front side.

Further, according to the present invention, the movement of the tread member in the tire width direction while the vehicle is running is restricted by the support member,
Since the supporting member and the string-like member smoothly follow the movement of the tread member in the tire circumferential direction, it is possible to prevent performance deterioration due to displacement and twisting of the tread member.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view showing an example of the tire slip prevention device of the present invention mounted on a tire, FIG. 2 is a schematic diagram showing the outer diameter and width of the tire, and FIG. 3 is a tire slip prevention device of the present invention. FIG. 3 is a longitudinal side view showing a state in which the stop device is attached to the tire. In the figure, 10 is a tire slip prevention device, 12 is a support member, 1
4 is a tread member, 16 is a string member, 20 is a tire, 22 is a tread surface, 24 is a back side wall surface, 30 is a wheel, D is an outer diameter of the tire, and W is a width of the tire.

Claims (1)

[Claims] (1) A disc-shaped or radial arm-shaped support member is installed on the front sidewall surface of the tire, and one end is attached to the outer edge of the support member, extending all around the tread surface of the tire. a tread member that covers the tread member; and a string-like member connected to the end of the tread member opposite to the support member side and disposed on the sidewall surface on the back side of the tire, the support member being connected to the axis of the wheel. The string member is attached rotatably around the tire, and the string member is connected in an endless continuous manner with a length exceeding the outer circumference of the tire. A tire slip prevention device characterized in that the tire slip prevention device is configured to be adjustable into a loop having a length longer than twice the sum of the loops.