JPH06115329A - Slip stopper for tire - Google Patents

Abstract

PURPOSE:To improve performance on snow and reduce vibration and a vehicle inside sound and improve riding comfort. CONSTITUTION:This slip stopper 1 for a tire consists of a fitting member 2 fitted attachably/detachably to the side surfaces of an automobile vehicle wheel concentrically with the vehicle wheel; side belts 3 extending radially from the member 2; two ringlike tread belts 4 provided at the side belt 3 tips; and a number of ground-contacting portions 5 set up between both tread belts 4, 4, and the ground-contacting portions 5 are provided in an inclined state at a predetermined angle theta in regard to a tire rotary axis and also in parallel with each other, and moreover, any one portion 5 of the ground-contacting portions 5 is made to contact the ground at all times.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cantilever type anti-skid device for use on a tire of an automobile.

[0002]

2. Description of the Related Art As this type of tire anti-skid, those illustrated in FIGS. 6 and 7 are known. This non-slip 11
Is a ladder-shaped grounding portion 13a in which a plurality of side belts 13 are radially extended from a fixing portion 12 fixed to a side surface of a vehicle wheel W, a tip of the side belt 13 is bent, and the tread surface TT of a tire T is brought into contact with the grounding portion 13a. At the same time, two ring-shaped tread belts 14 are fixed to the inner peripheral side of the grounding portion 13a, and a strip-shaped grounding member 15 is provided between the tread belts 14.
Along with a, they are arranged parallel to the tire rotation axis and at substantially equal intervals.

As shown in FIG. 7 (a), the slip stopper 11 has
From the outside of the tire T mounted on the wheel W of the automobile,
It is attached to the wheel W via a wheel fixing nut N.

[0004]

By the way, in the above-mentioned prior art, when the wheel W equipped with the tire slip stopper 11 rotates, the ground contact portion 13a and the ground contact member 15 contact the ground G intermittently. Therefore, there is a problem that the vibration is large, the riding comfort is bad, the running sound is large, and the sound is muffled inside the vehicle.

Further, when traveling on a snowy road, a certain degree of driving force is exerted in the straight traveling direction, but the lateral driving force is not exerted, and when the road surface is uneven, the steering wheel is corrected (turning the steering wheel). At this time, the lateral tension of the pedal is weak, resulting in extremely unstable running. That is, even when traveling straight ahead, the vehicle body sways due to slight irregularities on the road surface, or skids occur during cornering, making it difficult to rotate.

Furthermore, when climbing a hill while traveling on a snowy road,
As shown in FIG. 7B, since the side belt 13 escapes to the outside, there is a problem that sufficient traction is not exhibited. The present invention has been made in view of the above situation, and its purpose is to sufficiently exhibit snow performance (hill climbing, straight running stability) regardless of whether it is a front-wheel drive vehicle or a rear-wheel drive vehicle. The purpose of the present invention is to provide a non-slip tire for tires that has low vibration and noise inside the vehicle and is comfortable to ride.

[0007]

In order to achieve the above object, the present invention takes the following technical means. That is, the present invention covers an attachment member that is concentrically and detachably attached to a side surface of an automobile wheel, a side belt radially extending from the member, and a tire tread surface circumference provided at an end of the side belt. In a slip stopper for a tire, which comprises a plurality of tread belts and a plurality of ground contact portions provided between a plurality of tread belts, the ground contact portions are substantially strip-shaped and arranged at a predetermined angle with respect to a tire rotation axis. It is characterized by being.

Further, the present invention is characterized in that the inclination angle of the ground contact portion with respect to the tire rotation axis is selected so that the ground contact is always made at any one of the ground contact portions. Further, in the present invention, the inclination of the grounding portion is reversed for the left and right wheels so that the grounding portion has an 8-shape or a reverse 8-shape in plan view with respect to the traveling direction on the left and right when the anti-skid is attached to the wheel. It is characterized by being.

[0009]

According to the present invention, when the vehicle body is laterally displaced with respect to the traveling direction during traveling on a snowy road, the ground contact portion bites into the snow surface and exerts a force to stiffen the vehicle body, thereby restraining the lateral movement of the vehicle body. As a result, traction in the traveling direction occurs and straight-line stability is obtained. Further, since any one of the grounding portions is always grounded on the road surface, vibration and noise inside the vehicle are reduced even on uneven snowy roads, and the riding comfort is good.

Further, since the ground contact portion of the anti-skid device mounted on the left and right wheels has an eight-character shape or an inverted eight-character shape in a plan view, traction occurs in the traveling direction to further improve the straight running stability and improve the side belt. The escape to the outside is eliminated, enabling stable running.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2, reference numeral 1 denotes a cantilever type anti-skid device for a tire, which is a substantially disc-shaped mounting member 2 and a plurality of members radially extending from the outer peripheral portion of the mounting member 2 and having a bent tip. Side belts 3 and a plurality (two) that cover and contact the tire tread surface circumference provided at the tip of each side belt 3
4 ring-shaped tread belts and 2 tread belts
It is composed of a number of strip-shaped grounding parts 5 that are erected on the outer peripheral side between the four.

The mounting member 2 is a fixed disk 2a made of metal.
And a ring-shaped rotary plate 2b made of synthetic resin mounted on the disc 2a.Dharma-shaped mounting holes 6 are provided on the inner circumference of the fixed disc 2a in the wheel nut (not shown) for mounting the wheel. Correspondingly provided, a rotary plate 2b is fitted and mounted on the outer periphery of the fixed disk 2a so as to be relatively rotatable. Then, the base ends of twelve rubber side belts 3 are fixedly integrated by bolts and nuts 7 on the outer peripheral portion of the rotary plate 2b.

The tread belt 4 is made of rubber and has a ring shape, and is integrally provided at the tip of the side belt 3.
Between the two tread belts 4, a large number of ground contact portions 5 are obliquely formed at a predetermined angle θ with respect to the tire rotation axis direction, and are arranged in a bridging manner on the outer peripheral surface of the tread belt 4 at equal intervals. It is provided. The spike pin 8 is embedded in the outer peripheral surface of the grounding portion 5. 9 is a fixed disk
It is a handle provided on 2a.

It should be noted that, as shown in FIG. 2, the one end 5a of the ground portion 5 in the longitudinal direction thereof is slightly overlapped with the other end 5b of the adjacent ground portion 5 in the circumferential direction by a certain amount of R in the circumferential direction. The inclination angle θ is set so that any one of the grounding portions 5 is always grounded. Therefore, the tire is continuously supported on the road surface via the ground contact portion 5, and the vertical vibration is significantly reduced.

As shown in FIG. 3, the grounding portion 5 has a left-right shape in an eight-character shape in plan view with respect to the traveling direction when the anti-skid is attached to the wheel, or as shown in FIG. Two types are manufactured so that the grounding portion 5 is for the left and right wheels and the inclination direction of the grounding portion 5 is reversed so as to have an inverted eight shape. Figure 5
The present invention and the conventional example are mounted on 205 / 60R15 tires,
The results of running tests in a certain section are shown, and the climbing performance is evaluated by using the conventional example A when traveling in a certain section as a reference (100), and the straight running stability is based on the driver's feeling evaluation. is there. As is apparent from FIG. 5, the present invention is superior to the conventional example in climbing property and straight running stability, and the effect is particularly remarkable.

The present invention is not limited to the above-mentioned embodiment. For example, the side belt 3, the tread belt 4 and the grounding portion 5 are separately manufactured and joined by bolts / nuts or rivets or other bonding means. Alternatively, a core material (for example, made of high-tensile synthetic fiber) may be embedded in each of the belts 3 and 4 and the grounding portion 5, and another material may be selected and used.

[0017]

As described above, the present invention provides a mounting member which is concentrically and detachably mounted on a side surface of a vehicle wheel, a side belt radially extending from the member, and a side belt end. In a tire non-slip device comprising a plurality of tread belts covering the tire tread surface circumference and a large number of ground contact portions installed between the plurality of tread belts, the ground contact portion is substantially strip-shaped with respect to the tire rotation axis. It is characterized by the fact that they are arranged at a predetermined angle, so that regardless of whether it is front-wheel drive or rear-wheel drive, sufficient snow performance (hill climbing, straight-line stability) is demonstrated and driving safety is ensured. Can be secured.

Further, the present invention is characterized in that the inclination angle of the ground contact portion with respect to the tire rotation axis is selected so that the ground contact is always made at any one of the ground contact portions. It is possible to reduce the vertical vibration of the wheels, reduce running noise and in-vehicle noise, and improve riding comfort. Further, in the present invention, the inclination of the grounding portion is reversed for the left and right wheels so that the grounding portion has an 8-shape or a reverse 8-shape in plan view with respect to the traveling direction on the left and right when the anti-skid is attached to the wheel. Because it is characterized by
It is possible to reliably prevent side slip and further improve straight running stability and climbability.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a developed plan view showing the shape of the ground contact portion of the left and right wheel anti-skid devices.

FIG. 4 is a developed plan view showing another shape of the ground contact portion of the left and right wheel anti-skid device.

FIG. 5 is a comparative diagram showing the results of running tests of the present invention and a conventional example.

FIG. 6 is a perspective view of a conventional example.

FIG. 7A is a schematic cross-sectional view of a conventional example when mounted on a wheel, and FIG. 7B is an explanatory view of a state of the conventional example when a vehicle is running.

[Explanation of symbols]

 1 Tire non-slip device 2 Mounting member 3 Side belt 4 Tread belt 5 Grounding portion θ Inclination angle

Claims (3)

[Claims] 1. A mounting member which is concentrically and detachably mounted on a side surface of a wheel of an automobile, a side belt radially extending from the member, and a plurality of tire treads provided at ends of the side belt and covered on a circumference of the tire tread. In the anti-skid device for tires, which comprises a tread belt and a large number of grounding portions bridged between a plurality of tread belts, the grounding portions are substantially strip-shaped and arranged at a predetermined angle with respect to the tire rotation axis. A non-skid device for a tire, which is characterized in that 2. The anti-skid device for a tire according to claim 1, wherein an inclination angle of the ground contact portion with respect to the tire rotation axis is selected so that the ground contact is always made at any one of the ground contact portions. . 3. The inclination of the grounding portion for the left and right wheels is reversed so that the grounding portion has an 8-shape or a reverse 8-shape in plan view with respect to the traveling direction when the anti-skid is attached to the wheel. The anti-skid device for tire according to claim 1 or 2, characterized in that.