JP2001163017A - Anti-skid tool for tire for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an anti-skid tool for a tire for an automobile capable of preventing wear generated during normal traveling from influencing at the time of braking by change of the attitude of the anti-skid tool into a state efficient for braking at the time of braking in traveling on a snowy road. SOLUTION: A bar 1 fitted to a groove 15 between each of blocks of a tread pattern 14 of the tire 13 for the automobile consists of a bar-like body 2 made of elastic material and a metallic engaging body 3 laterally provided with multiple projections 11 on both sides thereof and joined to a lower surface of the bar-like body 2. A longitudinal section of the bar-like body 2 along the longitudinal direction thereof is formed to be an angled shape while the anti-skid body 9 comprising U-shaped longitudinal section is engaged to a center wall 4 vertically provided to the center at a bottom part thereof, and an upper end of front and rear jaw parts 10 of the anti-skid body 9 is positioned near an opening end of a space part 5 formed forward and backward the center wall 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-slip technology for a tire for running on a snowy road of an automobile.

[0002]

2. Description of the Related Art Japanese Patent Application No. 67000 and 1997 Patent Application No. 152 disclose slip prevention techniques for fitting into grooves between blocks in a tread pattern of an automobile tire.
No. 783 (hereinafter referred to as the prior invention) has been proposed. However, since the prior invention always keeps the non-slip body in a fixed posture on the road surface even during normal running or braking, the entire surface snow In the case of a surface, the effect of the wear of the non-slip body on the brake becomes a problem on a road surface where the snow surface is interrupted.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above,
An object of the present invention is to provide an anti-skid device for an automobile tire in which the posture of a non-slip body changes to a state effective for braking when braking on snowy roads, and wear during normal running does not affect during braking.

[0004]

According to a first aspect of the present invention, there is provided an anti-skid device for an automobile tire, which has a required height and a required planar shape to be fitted in grooves between respective blocks in a tread pattern of the automobile tire. In the anti-skid device, a large number of protrusions are laterally provided at the lower part on both sides of the rod-shaped body, and a non-slip body is provided at the upper part. And a metal attachment body joined to the lower surface of the rod-shaped main body, and a non-slip body is pivotally attached in the center of the rod-shaped body in the longitudinal direction so as to be swingable in parallel with the lateral direction. The end is made to be able to enter and exit from the upper surface of the rod-shaped main body.

The anti-skid device for an automobile tire according to the second aspect of the present invention has a rod-shaped body having a required height and a required planar shape which fits into a groove between blocks in a tread pattern of the automobile tire, and a large number of which are provided at lower portions on both side surfaces thereof. In the anti-slip device, the protrusions are laterally provided and a non-slip body is disposed on the upper part, wherein the rod-like body has a rod-like body made of an elastic material and a number of protrusions laterally provided on both side surfaces, and is provided on the lower surface of the rod-like body. The rod-shaped main body is formed with a vertical cross section along the longitudinal direction of the rod-shaped main body, and a non-slip body having a vertical cross section of U-shape is fixed to a central wall erected at the center at the bottom thereof. The front and rear upper ends of the non-slip body are positioned near the opening end of a space formed before and after the center wall.

Further, the anti-skid device for an automobile tire according to the third aspect of the present invention has a rod-shaped body having a required height and a required plane shape fitted into a groove between blocks in a tread pattern of the automobile tire, and a plurality of rods formed at lower portions on both side surfaces thereof. In the anti-skid device having the protrusions laterally provided and a non-slip body disposed on the upper part, the rod-shaped body has a rod-shaped main body made of hard synthetic resin, and a large number of protrusions laterally provided on both side surfaces. A metal attachment body joined to the lower surface, a depressed groove formed in the center of the rod-shaped main body in the longitudinal direction, and a non-slip body having a vertical sectional fan shape on a swing shaft pivotally supported in the short direction by the depressed groove. And the front and rear ends thereof can be freely inserted and removed from the upper surface of the rod-shaped main body.

Further, the anti-skid device for an automobile tire according to a fourth aspect of the present invention is the anti-skid device for an automobile tire according to the third invention, wherein a non-slip chip is implanted on a top surface of a non-slip body having a fan-shaped vertical cross section.

Further, according to a fifth aspect of the present invention, there is provided an anti-skid device for an automobile tire according to the third or fourth aspect of the present invention, wherein a front and rear surface of a non-slip body having a fan-shaped vertical section is formed by projecting each elastic body. It is supported by the part.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The engagement of the non-slip body with the center wall of the rod-shaped main body means that the non-slip body is inserted through insertion holes formed in front and rear of the center wall and fixed with an adhesive. The non-slip body is screwed into a screw screwed from the bottom surface of the anchoring body, and a depressed groove formed at the center in the longitudinal direction of the rod-shaped main body. From the one that supports the swinging shaft in a protruding shape along the width direction to the rod-shaped body in a cantilevered state, the one that supports the swinging shaft in a state where both ends are supported, and the lateral direction of an attachment body ( In the widthwise direction, bearings standing at both ends include those that support the swinging shaft in a state where both ends are supported.Furthermore, when a non-slip chip is planted on the top surface of a non-slip body with a vertical sectional fan shape, It is selected from those in which the round bar-shaped chip is planted in parallel in the transverse direction, and those in which the chip is planted vertically perpendicular to the transverse direction.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described by way of an embodiment. As shown in FIG.
The rod-shaped body 1 having a required height (total height of 7 and 5 mm) and a required length (total length of 30 mm) is inserted into the groove 15 between the blocks in the above-mentioned. (A height of 5, 5 mm and a length of 30 mm), and a metal attachment 3 bonded to the lower surface of the rod-shaped main body 2 with an adhesive and a screw. A central wall 4 is erected at the center, a space 5 is formed before and after the central wall 4, a front end wall 6 is disposed at a front end, and a rear end wall 7 is disposed at a rear end. In a horizontally long rectangular insertion hole 8 penetrating the lower end of the central wall 4, a horizontally elongated rectangular anti-slip body 9 having a U-shaped vertical section and a horizontal cross section that can be fitted into the insertion hole 8 is inserted. The bottom horizontal surface of the non-slip body 9 is fixed to the insertion hole 8 with an adhesive and a screw, and the front and rear claws 10 are positioned with their upper ends near the open ends of the spaces 5. It is housed in each space portion 5 with a size that can be taken, and the anchoring body 3 is formed by arranging a number of protrusions 11 on both side surfaces thereof. , And has a splaying inclined surface 12.

As shown in FIG. 2, the anti-skid device a of the automobile tire is pushed into the groove 15 between the blocks in the tread pattern 14 of the automobile tire 13 from the inclined surface 12 of the anchor 3 as shown in FIG. The claw 10 of the non-slip body 9 is attached to the upper surface of the rod-shaped main body 2 during normal running, that is, the upper surfaces of the front end wall 6, the center wall 4, and the rear end wall 7 during normal running. Only the elastic material comes into contact with the road surface without protruding further, but at the time of braking, as shown in FIG. 3, each wall 4, 6, 7 of the rod-shaped main body 2 falls down rearward, and the rear portion is compressed. The posture of the non-slip body 9 becomes the forward inclined posture, and the front claw portion 10 comes into contact with the snow surface A, so that the braking effect is enhanced. Therefore, during normal running, there is no sound of the non-slip body 9 hitting the road surface, and the wear of the claw portion 10 is drastically reduced, and the durability thereof is also improved.

Next, the anti-slip device b of the automobile tire shown in FIG. 4A will be described. The rod-shaped body 1 is made of a rigid synthetic resin-made rod-shaped main body 2 (width 7 mm, height 5, 5 mm, length 30 mm). ), And a metal attachment 3 that is screwed on the lower surface of the rod-shaped main body 2 with an adhesive before and after the adhesive.
A recessed groove 16 penetrating vertically from one side is formed at the center in the longitudinal direction of the rod-shaped main body 2, and a fitting groove 17 having a required width and a required depth is formed vertically on the other side, and the recessed groove 16 is formed. 4 (c), a shaft insertion hole 18 is provided laterally at a required position on the other side face sandwiched between the fitting grooves 17. As shown in FIG. On the other hand, bearing plates 19 are erected from both sides at positions corresponding to the recessed grooves 16 and the fitting grooves 17 of the rod-shaped main body 2 of the anchoring body 3.
9, a plurality of projections having a shaft hole 20 formed concentrically with the shaft insertion hole 18 and having, on both side surfaces, an inclined surface 12 having a plane triangular shape and a vertical section diverging from a top end surface to a bottom surface. 11
As shown in FIG. 4 (b), a non-slip body 21 having a fan-shaped vertical section is housed in the recessed groove 16 with its top surface 22 flush with the upper surface of the rod-shaped main body 2. The shaft 23 of the non-slip body 21 is rotatably supported on the other hand through the shaft insertion hole 18 in the shaft hole 20 of both bearing plates 19, and the center of the top surface 22 is orthogonal to the axis of the shaft 23. Vertically, the head protrudes from the top surface 22 as required, and a non-slip tip 24 made of a hardened metal is implanted.

As shown in FIG. 5, the anti-slip device b of the automobile tire is pushed into the groove 15 between the blocks in the tread pattern 14 of the automobile tire 13 from the inclined surface 12 of the anchor 3 as shown in FIG. The anti-slip chip 24 implanted on the top surface 22 of the anti-slip body 21 contacts the snow surface A during normal running, and the anti-slip body 21 Rotating around the shaft hole 20 of the dual bearing plate 19 via the non-slip chip 24,
At this time, since the top surface 22 of the non-slip body 21 is a curved surface having a radius of curvature larger than the radius of curvature centered on the shaft hole 20, the end thereof becomes a claw 25 and protrudes from the upper surface of the rod-shaped main body 2. As a result, as shown in FIG. 6, a biting action on the snow surface A is induced to enhance the braking effect. As described above, the slip prevention chip 24 acts to prevent slippage when traveling on snowy surface during normal running, and the claw portion 2 during braking.
5 shares the anti-slipping effect, and wear during normal running does not affect the braking effect, and a high braking effect can be maintained.

Further, the anti-skid device c for an automobile tire shown in FIG. 7 will be described.
A non-slip chip 26 made of a wear-resistant elastic material is horizontally provided with its peripheral surface slightly protruding from the top surface 22 in parallel with the top surface 22 and bonded with an adhesive. To
A leaf spring 27 as an elastic body is disposed on each of the
The front surface of the lower surface is supported by a convex portion 28 formed at an open end of the lower surface 7. Therefore, when the brake is applied, the non-slip body 21 is rotated by pressing the convex portion 28 on the traveling direction side, and the braking effect on the snow surface is enhanced by the contact resistance of the claw portion 25. The non-slip body 21 is restored to the neutral position by the elastic force of the portion 28. The planer shape of the anti-skid device of the present invention is not limited to the above-described embodiment.
And a cross shape corresponding to the arrangement of the grooves 15 of each block of the tread pattern 14 are provided. In this case,
In the G type, one of the shafts 23 of the non-slip body 21 is supported by the shaft hole 20 of the bearing plate 19 erected on the engaging body 3, and the other is formed by the shaft hole 20 formed in the rod-shaped main body 2. In the case of a cross shape, both of the shafts 23 are supported by shaft holes 20 formed in the rod-shaped main body 2. In addition, a non-slip chip 24 made of a hardened metal is implanted on the upper surface of the rod-shaped main body 2, and a chevron-shaped notch is formed on the peripheral surface of the non-slip body 21 having a fan-shaped vertical cross-section in parallel with the axis of the shaft 23. It is done incidentally.

[0015]

As described above, according to the present invention, the rod-shaped non-slip member bitten in the groove of the tread pattern of the automobile tire is in contact with the road surface during normal running and braking. Are different from each other, so that the wear during normal driving does not affect the braking effect and the high braking effect can be maintained, and the anti-slip during normal driving and the anti-slip during braking are shared. The effect is that the durability of the device can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of an automobile tire anti-skid device a according to the present invention.

FIG. 2 is an explanatory view of a state in which an anti-skid device a of the automobile tire is mounted on the automobile tire.

FIG. 3 is an explanatory view of the operation of the anti-skid device a of the automobile tire during braking.

FIG. 4 is an explanatory view of an anti-slip device b for an automobile tire according to the present invention.

FIG. 5 is an explanatory view of a state in which an anti-skid device b of the vehicle tire is mounted on the vehicle tire.

FIG. 6 is an explanatory view of the operation of the anti-skid device b of the automobile tire during braking.

FIG. 7 is a longitudinal sectional view of a main part of an anti-skid device c for an automobile tire according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rod-shaped body 2 Rod-shaped main body 3 Engagement body 4 Central wall 5 Space part 6 Front end wall 7 Rear end wall 8 Insertion hole 9 Non-slip body 10 Claw part 11 Projection 12 Inclined surface 13 Automobile tire 14 Tread pattern 15 Groove 16 Depressed groove DESCRIPTION OF SYMBOLS 17 Fitting groove 18 Shaft insertion hole 19 Bearing plate 20 Shaft hole 21 Non-slip body 22 Top surface 23 Shaft 24 Non-slip chip 25 Claw part 26 Non-slip chip 27 Plate spring 28 Convex part A Snow surface a Anti-slip device for automobile tire b Anti-skids for automobile tires c Anti-skids for automobile tires

Claims (5)

[Claims] 1. A rod having a required height and a required planar shape to be fitted into a groove between blocks in a tread pattern of an automobile tire, a number of protrusions are laterally provided at lower portions on both side surfaces thereof,
A non-slip device having a non-slip body disposed at an upper part thereof, wherein the rod-shaped body is made of a non-metallic rod-shaped body, and a plurality of protrusions are laterally provided on both side surfaces, and a metal member joined to a lower surface of the rod-shaped body. An automobile tire comprising a non-slip body at the center in the longitudinal direction of the rod-shaped body and swingably engaged with the bar-shaped body in a direction parallel to the lateral direction, and the front and rear ends of which can freely enter and exit from the upper surface of the rod-shaped body. Anti-skid equipment. 2. A rod-shaped body having a required height and a required plane shape fitted in a groove between respective blocks in a tread pattern of an automobile tire, and a number of projections are laterally provided at lower portions on both side surfaces thereof.
An anti-slip device having a non-slip body disposed at an upper part thereof, wherein the rod-shaped body has a rod-shaped body made of an elastic material, and a number of protrusions are laterally provided on both side surfaces, and a metal engaging member is joined to a lower surface of the rod-shaped body. A vertical section along the longitudinal direction of the rod-shaped body is formed into a mountain shape, and a non-slip body having a U-shaped vertical section is fixed to a central wall erected in the center at the bottom thereof, and An anti-skid device for an automobile tire, wherein the front and rear upper ends are positioned near an opening end of a space formed before and after the center wall. 3. A rod-shaped body having a required height and a required plane shape fitted in a groove between each block in a tread pattern of an automobile tire, and a plurality of projections are laterally provided at lower portions on both side surfaces thereof.
An anti-slip device having a non-slip body disposed at an upper part thereof, wherein the rod-shaped body is made of a hard synthetic resin and has a plurality of protrusions laterally provided on both side surfaces, and is made of a metal joined to a lower surface of the rod-shaped body. An engaging body, a recessed groove is formed at the center in the longitudinal direction of the rod-shaped main body, and a non-slip body having a fan-shaped vertical section is pivotally supported on a swing shaft pivotally supported in the transverse direction by the recessed groove. An anti-skid device for an automobile tire having front and rear ends that are freely accessible from the upper surface of a rod-shaped main body. 4. The anti-slip device for an automobile tire according to claim 3, wherein a non-slip chip is implanted on a top surface of the non-slip body having a fan-shaped vertical section. 5. A non-slip body having a fan-shaped vertical cross section is supported by front and rear portions of a lower surface of the non-slip body by a convex portion of each elastic body, and provides a restoring force when the non-slip body swings. Claim 3
Or the anti-skid implement of the automobile tire according to 4.