JPH0516625A - Tire antskid device - Google Patents

Abstract

(57) [Abstract] [Purpose] Not only to prevent skidding on the road surface under ice and snow to improve the riding comfort, but also to obtain a large driving force and braking force, and further to prevent tire slippage. Sufficiently prevent flipping. [Structure] A tire anti-slip member 12 disposed on the outer peripheral surface of the tire 10 at intervals along the circumferential direction of the tire 10.
Includes a vertical piece 16 located in the center of the tire 10 in the width direction and extending along the circumferential direction of the tire, and a pair of horizontal pieces 18 located at both ends of the vertical piece 16 and extending in the width direction of the tire 10.
It is more H-shaped. Further, the tire anti-slip member 12 has a reinforcing material embedded along the H-shaped shape thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire non-slip device which is mounted on the outer peripheral portion of a tire to prevent the tire from slipping on an icy road.

[0002]

2. Description of the Related Art As a tire anti-slip device of this type,
Extending along the width direction of the tire on the outer peripheral surface of the tire, a plurality of long plate-shaped tire slip preventing member provided with spike pins at the portion contacting the road surface, at both ends of each tire slip preventing member, It is conventionally known that those tire anti-slip members are arranged at predetermined intervals along the circumferential direction of the tire by connecting the same end portions with a rope, and are used for tires of passenger cars and the like. There is.

Further, the tire anti-slip member is formed in a rectangular frame shape by two parallel vertical pieces extending along the circumferential direction of the tire and two parallel horizontal pieces extending along the width direction of the tire. Further, a horizontal piece in which a reinforcing material is embedded is known, which is described in detail in Japanese Utility Model Laid-Open No. 61-161105.

[0004]

By the way, in the above-mentioned conventional tire anti-slip device, the tire anti-slip member having a long plate-like shape relatively easily bites into snow, and has a large driving force and braking force. On the other hand, on the other hand, when a large force is exerted on the tire anti-slip member at the time of sudden start, sudden stop, or under heavy snow, the tire anti-slip member is repelled from the road surface, and a curling phenomenon occurs, There was a problem that the anti-slip performance originally obtained could not be obtained, and the tire anti-slip member might be damaged in some cases.

Further, since the tire anti-slip member is in the form of a long plate extending in the width direction of the tire, it has a weak resistance against lateral skidding in the tire width direction, and the lateral slip easily occurs, which causes a problem. there were.

Further, since the tire anti-slip member has a long plate shape along the width direction of the tire, it occurs between the tire anti-slip members where there is no tire anti-slip member and where there is a tire anti-slip member. The stepped portion has a peak-like shape as compared with the entire outer circumference of the tire, that is, a steep stepped portion occurs, which is a problem in terms of riding comfort.

On the other hand, in the case where the tire anti-slip member is formed in the shape of a rectangular frame, the above problems are solved,
On the other hand, because of the rectangular frame shape, the vertical pieces of the tire anti-slip member are located outside the center of the tire with high ground contact pressure on the road surface, and therefore the bite into the snow is poor and the driving force and braking force are low. Is weakened, and in the tire anti-slip member, a concave portion surrounded by a vertical piece and a horizontal piece is formed, and the concave portion is in a closed state with respect to the road surface.
There was another problem in that the recesses were likely to be clogged with snow, which reduced the anti-slip performance.

Further, since the reinforcing material is embedded only in the horizontal piece and the reinforcing material is not embedded in the vertical piece in the tire anti-slip member, the tire anti-slip member is not sufficiently prevented from being turned over, which causes a problem. was there.

In view of the above facts, the present invention not only prevents skidding on a road surface under ice and snow to improve riding comfort, but also obtains a large driving force and braking force, and further, tire slippage. The purpose is to prevent the locking member from turning over sufficiently.

[0010]

In order to solve the above-mentioned problems, the present invention is arranged on the outer peripheral surface of the tire at intervals along the circumferential direction of the tire and is located at the central portion in the width direction of the tire. And a vertical piece extending along the circumferential direction of the tire, and a pair of horizontal pieces located at both ends of the vertical piece and extending along the width direction of the tire, and a flexible tire slip formed in an H shape. The present invention proposes a tire anti-slip device including a stopping member and a reinforcing material embedded in the tire anti-skid member along its H-shaped shape.

[0011]

With the above structure, the vertical piece of the tire slip preventing member formed in an H-shape increases the resistance force to the side slip and prevents the side slip, and at the same time, the tire slip preventing member is , Since the pair of lateral pieces are continuous at the same height, the stepped portion generated in the portion with the tire anti-slip member between the portions with no tire anti-slip member between the tire anti-slip members is compared with the entire outer circumference of the tire. It is not peaked and the riding comfort is improved.

In addition to this, since the vertical piece is located at the center of the tire having a high ground contact pressure on the road surface, it can penetrate deeply into the snow on the road surface, and a large driving force and braking force can be obtained. .. At the same time, since the vertical piece is single and located at the center of the tire, the tire anti-slip member is formed with a recess which is surrounded by the vertical piece and the horizontal piece and which is closed to the road surface. In addition, even under heavy snow, etc., there is no snow clogging and the anti-slip performance is fully demonstrated.

Further, in addition to the aspect in which the vertical piece of the tire slip preventing member formed in the H shape is connected between the pair of horizontal pieces, the reinforcing material is not limited to the horizontal piece and the vertical piece has an H shape. Since it is buried along with it and increases the rigidity of the vertical piece, even if a large force is generated in the tire anti-slip member at the time of sudden start, sudden stop or under heavy snow, the tire anti-slip member will turn over. The curling phenomenon is sufficiently prevented. Further, even when the spike pin is provided on the vertical piece, the rigidity of the reinforcing member is increased, so that the spike pin is reliably bited into the road surface, and the biting efficiency can be improved.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the tire antiskid device according to the present invention will be described in detail with reference to FIGS.

As shown in FIG. 2, the tire anti-skid device comprises a plurality of tire anti-skid members 12, for example, about 10 provided on the outer peripheral surface of the tire 10, and the tire anti-skid members 12 arranged at predetermined intervals. Side rope 14 connected with
It is composed of

As shown in FIG. 1, each tire slip preventing member 12 is integrally formed in an H-shape by a single vertical piece 16 and a pair of horizontal pieces 18. As the material of the tire anti-slip member 12, a flexible material such as natural rubber or synthetic resin is used.

The vertical piece 16 is located at the center of the outer peripheral surface of the tire 10 and extends along the circumferential direction of the tire 10 shown by the arrow A. The horizontal pieces 18 are located at both ends of the vertical piece 16 and extend along the width direction of the tire 10 shown by the arrow B. The vertical piece 16 of the vertical piece 16 and the horizontal piece 18 of the tire anti-slip member 12 is in contact with the road surface.
A plurality of spike pins 20 made of metal are planted at the connection portion with 6. As shown in FIG. 5, the spike pin 20 has a recess 22 at its tip, and the tip of the spike pin 20 projects toward the road surface. Also, the vertical piece 16 and the horizontal piece 1
As shown in FIGS. 4 and 5, each of the eight has a substantially trapezoidal vertical cross section, and various concave non-slip shaped portions 24 are formed on the surface facing the road surface.

The lateral piece 18 of the tire anti-slip member 12 is extended and formed in a dimension longer than the width dimension of the tire 10.
Then, as shown in FIG. 3, the lateral piece 1 formed by extension thereof.
On the outer peripheral surface side of the No. 8 tire 10, groove portions 26 are formed along positions corresponding to both end edges of the outer peripheral surface of the tire 10. As shown in FIG. 2, the groove portion 26 allows the lateral piece 18 of the tire anti-slip member 12 to be easily bent along the side surface of the tire 10 when the tire anti-slip member 12 is mounted on the tire 10 to prevent tire slippage. The stop member 12 is adapted to fit the tire moderately.

A reinforcing material 28 is embedded in the tire anti-slip member 12 along its H-shaped configuration. The reinforcing material 28 is an organic fiber layer of plain weave, woven fabric or the like, or a combination thereof, and is formed of one layer or a plurality of layers. A bead 32 is similarly embedded in each end of the lateral piece 18 along the circumferential direction of the tire 10, and a reinforcing material 28 is wound around the bead 32 and locked. ing.

Here, in order to manufacture the tire anti-slip member 12, first, the raw material of the tire anti-slip member 12 is punched into an H-shape, and two punched products are prepared as primary products. Further, the raw material of the reinforcing material 28 is similarly punched out into an H shape, and the material thus obtained is put between the above-mentioned two primary products, and they are superposed and vulcanized and bonded in the mold. At this time, it is preferable that the reinforcing material 28 has a larger elastic modulus along the circumferential direction of the tire 10 than the elastic modulus along the width direction of the tire 10. For this purpose, for example, the warp yarns that weave the reinforcing material 28 are used. Various methods are conceivable, for example, the elastic moduli of the weft threads are made different, and when the reinforcing material 28 is punched, the punching direction is taken into consideration.

On the other hand, the lateral piece 18 of the tire anti-slip member 12
As shown in FIG. 2, a cutout portion 30 is formed at each end of the rope, and one end of a rope support metal fitting 34 formed by bending a steel wire rod is locked in the cutout portion 30. There is. The other ends of the rope support fittings 34 are crimped so as to sandwich the side ropes 14, and the side ropes 14 are provided on the same end side of the tire anti-slip members 12, respectively.
By hooking the fastening metal fitting 38 at the other end of the side rope 14 onto the hook metal fitting 36 at one end of the side rope 1
4 are connected in an annular shape so that each tire slip prevention member 12 is held on the outer peripheral surface of the tire 10. In addition,
The notch 30 is located closer to the center of the horizontal piece 18 than the bead 32 embedded in the horizontal piece 18, and is formed so as to enter inside the length portion of the bead 32. , The tire slip prevention member 12 is the tire 1
When it is pulled outward along the width direction of 0, the hook metal fitting 36 is caught by the bead 32 corresponding thereto, and the reinforcing effect of the reinforcing material 28 locked to the bead 32 is sufficiently exerted. As a material for the side ropes 14, synthetic resin such as polyester is used.

The operation of the above embodiment will be described. First, the vertical piece 16 of the tire anti-slip member 12 formed in the H-shape increases the resistance to skid and prevents skid. At the same time, in the tire anti-slip member 12, since the pair of horizontal pieces 18 are continuous at the same height at the site of the vertical piece 16, the tire slippage between the tire anti-slip member 12 and the area where the tire anti-slip member 12 does not exist. The stepped portion generated at the portion where the stopper member 12 is present is less peaked than the entire outer periphery of the tire 10, and the riding comfort is improved.

In addition to this, since the vertical piece 16 is located in the central portion of the tire 10 having a high ground contact pressure on the road surface, it can penetrate deeply into the snow on the road surface, and a large driving force,
Braking force is obtained. At the same time, since the vertical piece 16 is singularly located at the center of the tire 10, the tire slip prevention member 12 is surrounded by the vertical piece 16 and the horizontal piece 18 so as to be closed to the road surface. No deep recesses are formed, and even under heavy snow, etc., there is no snow clogging, and the non-slip performance is fully exhibited.

Further, in addition to the mode in which the vertical piece 16 of the H-shaped tire anti-slip member 12 connects a pair of lateral pieces 18, the reinforcing material 28 is used for the tire anti-slip member 1.
2 is integrally formed continuously in an H shape along the H shape.
In order to increase the rigidity of the vertical piece 16 by embedding it not only in the horizontal piece 18 but also in the vertical piece 16, a large force is generated in the tire anti-skid member 12 at the time of sudden start, sudden stop, or under heavy snow. Even if the tire anti-slip member 12 is turned over, however, the turn-up phenomenon is sufficiently prevented.

Further, even when the spike pin 20 is provided on the vertical piece 16, the rigidity of the reinforcing member 28 is increased, so that the spike pin 20 bites into the road surface reliably, and the biting efficiency can be improved.

Further, the vertical piece 16 of the tire anti-slip member 12
When the width h of the horizontal piece 18 and the width H of the horizontal piece 18 have a relationship of H ≧ h, the vertical piece 16 has little influence of the grounding pressure of the horizontal piece 18, and the horizontal piece 18 can easily bite into snow or the like. Therefore, a larger driving force and braking force can be obtained.

In the tire anti-slip member 12,
In the recess formed between the pair of horizontal pieces 18 on both sides of the vertical piece 16, the snow compaction amount increases, the shearing force in the snow increases, and this contributes to the increase of the driving force and the braking force.

Further, by embedding an organic fiber layer of a plain weave, a woven fabric or the like or a combination thereof as a reinforcing material, rigidity and compression resistance are improved as compared with a material using an inorganic material such as a wire as a material of the reinforcing material. , Excellent in durability.

The tread pattern of the tire 10 is
Although not particularly limited, the tire slip prevention member 1
Since the second vertical piece 16 is located at the center of the tire 10, the tread pattern of the tire 10 to which the tire anti-slip member 12 is attached is preferably such that the center of the tire 10 is circumferentially continuous. Further, in a rug tire in which grooves are formed along the width direction of the tire 10, the pitch of the grooves along the circumferential direction of the tire 10 and the distance between the pair of lateral pieces 18 of the tire anti-slip member 12, or It is preferable that the pair of lateral pieces 18 have different pitches along the circumferential direction of the tire 10 so that the pair of lateral pieces 18 of the tire anti-slip member 12 are not located in the groove portion of the tire 10.

Although the present invention has been described with reference to the above embodiments, the present invention is not limited to the above embodiments.
Various changes are possible. For example, in the above embodiment,
The tire anti-slip member 12 is formed in a flat plate shape, and the tire 10
When the tire is mounted on the tire, the both ends of the lateral piece 18 of the tire anti-slip member 12 are bent along the side surface of the tire 10. However, the present invention is not limited to this.
The lateral piece 1 is bent and shaped so as to follow the side surface of 0.
8 may have a substantially U-shaped vertical cross-section so that the tire 8 is in a non-mounted state or has a shape mounted in the tire 10 shown in FIG.

[0031]

As described above, the tire antiskid device according to the present invention not only prevents side skids on the road surface under ice and snow to improve the riding comfort, but also has a large driving force. A braking force can be obtained, and furthermore, the tire slip preventing member can be sufficiently prevented from being turned up.

[Brief description of drawings]

FIG. 1 is a plan view of an essential part showing an embodiment of a tire antiskid device according to the present invention.

FIG. 2 is a schematic perspective view showing a state in which the tire antiskid device according to the present invention is mounted on a tire.

FIG. 3 is a front view of the tire antiskid member shown in FIG.

4 is an enlarged sectional view taken along line 4-4 of FIG.

5 is an enlarged sectional view taken along line 5-5 of FIG.

[Explanation of symbols]

 10 Tire 12 Tire Anti-Slip Member 16 Vertical Piece 18 Horizontal Piece 28 Reinforcement Material

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsunao Yamada 3-20-1 Nakase, Kawasaki-ku, Kawasaki-shi, Kanagawa Komatsu Ltd. Kawasaki Plant

Claims (1)

Claim: What is claimed is: 1. A tire is disposed on an outer peripheral surface of a tire at intervals along the circumferential direction of the tire, and is located at a central portion in the width direction of the tire and extends along the circumferential direction of the tire. A vertical tire, a pair of horizontal pieces located at both ends of the vertical piece and extending in the width direction of the tire, and a flexible tire slip preventing member formed in an H shape, and the tire slip preventing member. A tire anti-skid device, comprising: a reinforcing material embedded along the H-shape.