JPH0880717A - Tire slip preventing device and tire slip preventing set - Google Patents

Abstract

PURPOSE: To provide a compact and thin slip preventing tool as a device for preventing tire slip on an icy load or a snowy road, which can be easily fitted to the peripheral surface of a tire at the time of emergency and which has excellent traveling stability. CONSTITUTION: This tool has a rubber board 2, which has the flat outline and which is formed narrower than the width of the tire tread. The back surface of this board is formed into the flat surface, and the top surface thereof is provided with a projection 6. Spike pins 9 respectively having a flange 12 larger than the space between grooves of the tread pattern of a tire, to which this slip preventing device is 6. Plural holes 14 are provided in the flange 12 of the spike pins 9, and the spike pins 9 are embedded in the rubber board 2 by molding. Furthermore, the board 2 is formed into the rhomboid. This slip preventing tool 1 is used by arranging the longitudinal direction thereof in the circumferential direction and adhering it to the circumferential surface of the tire with the instantaneous adhesive agent. The slip preventing tool never covers the all area in the cross direction of the tread.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device mounted on the outer peripheral surface of a tire to prevent slipping on an ice-and-snow road, and is particularly useful for temporary use in an emergency such as when escaping from an ice-and-snow road on a steep slope. The present invention relates to a suitable slip stopper.

[0002]

2. Description of the Related Art Spike tires are excellent in the function of maintaining stable running of automobiles on icy and snowy roads, but their use is regulated because they generate dust pollution, and studless tires are provided as an alternative. ing. However, studless tires lack grip power on icy and snowy roads as compared to spiked tires, and are liable to slip on deep snowy roads such as mountain roads and frozen roads, which is dangerous. Therefore, conventionally, the existing chains and anti-slip devices have been fastened with ropes to the outer peripheral surface of the studless tire to avoid the risk of slippage.

As an anti-slip device of this kind, an actual flat 5-
There is one disclosed in Japanese Patent No. 89020. This anti-slip device is shown in FIGS. 9 and 10, and the two belts 23 extending in the width direction of the tire 22 are integrally connected at their central portions with a substantially rectangular connecting portion 24 to form a substantially H-shape. Then, a reinforcing core material is provided inside thereof, and hook-like hooking metal fittings 25 are attached to both ends of the belt 23 to manufacture the anti-slip body 26. Then, by forming a groove 28 having a predetermined width on the surface of the connecting portion 24, the convex portion 27 is arranged and formed,
The spike pin 29 is embedded in the convex portion 27.

In the above conventional structure, the belt 23 and the connecting portion 2
4 is formed relatively wide so as not to sink into the soft and large block pattern 31 of the studless tire 22, and the convex portion 27 is made larger than the block pattern 31 of the studless tire, and the groove between the convex portions 27 is formed. In cooperation with the 28, the same grip force as the studless tire 22 is realized.

[0005]

SUMMARY OF THE INVENTION The above-mentioned non-slip device is
It is to arrange the outer peripheral surface of the tire in four equal parts and tighten the rope inserted in the hook metal fitting to fix it to the tire.As with the conventional chain, the installation work is troublesome. is there. Further, the conventional non-slip device is to cover a part of the tire circumferential surface over the entire width direction, and it is necessary to secure the same grip force as the studless tire on the coated surface of the non-slip device, It had the drawback of being large and thick.

[0006] It is an object of the present invention to provide a non-slip member that can be easily attached to the outer peripheral surface of a tire and that is small in size and thin in wall thickness, and therefore has better running stability.

[0007]

The anti-skid device for a tire of the present invention has a rubber substrate 2 which is narrower than the width of the tire tread and is flat as a whole. This substrate has a back surface 5 manufactured to be a flat surface, and a ridge 6 is provided on the top surface 4. A spike pin 9 having a brim 12 at the base end, which is larger than the groove interval of the tread pattern of the tire on which the anti-slip device is to be mounted, is embedded in the ridge 6.

A plurality of through holes 14 are formed in the collar 12 of the spike pin.
When the spike pin 9 is embedded in the rubber substrate 2 by molding, the liquefied rubber is made to penetrate into the through hole 14, and the rubber layers on the front and back of the collar 12 are connected by the rubber material inside the through hole 14. The integrated structure is preferable.

Further, the substrate 2 is formed in a rhombic shape, and an upslope 3 extending from the periphery of the substrate to the top surface 4 of the substrate is provided, and the ridges 6 are formed in a cross shape so as to be oriented in the direction of the diagonal line of the top surface of the rhombus. It is preferable to embed the spike pin 9 at the tip of the cross of the protrusion 6.

The anti-skid set of the present invention comprises a set of a plurality of the above-mentioned anti-slip devices and a liquid instant adhesive, and more preferably includes an abrasive sheet such as a file file or a cloth file. It was done.

[0011]

Operation The anti-skid device 1 of the present invention constructed as described above
Is that the longitudinal direction of the tire is bonded to the circumferential direction of the tire, and when bonded, it does not cover the entire area of the tire tread in the width direction, and a part of the tire tread is always exposed. The function of the studless tire can be maintained to some extent, and the function of the studless tire is not deteriorated due to the protrusion 6 and the groove 7 provided on the anti-slip device.

Further, since the collar 12 of the spike pin 9 is larger than the groove interval (usually about 10 mm) of the tread pattern of the studless tire on which the spike pin 9 is to be mounted, the anti-skid device 1 of the present invention has its rear surface covered by the tire. Since the spike pin 9 is supported on the top surface of the tread pattern, the spike pin 9 does not sink into the groove of the tread pattern and can be reliably eaten on the road surface. Therefore, it is not necessary to provide a reinforcing material or the like on the back side of the spike pin, and the base body 2 can be made thin.

Further, the collar 12 of the spike pin 9 has a through hole 14
Since the rubber layers on the front and back sides of the collar 12 are connected to each other, the spike pin is reliably fixed to the substrate 2 and can be prevented from falling off.

Further, since the slip stopper 1 of the present invention is provided with the ascending slope 3 extending from the periphery of the substrate to the top surface 4, stress is not concentrated on the peripheral portion of the substrate 2 and the periphery of the substrate is further prevented. It is possible to follow the deformation of the tire surface, prevent peeling of the adhesive, and reduce vibration during running.

Further, in the case where the protrusions 6 on the upper surface of the substrate are formed in the shape of a cross that points in the direction of the diagonal line of the rhombus and the spike pins are arranged at the tip of the cross, all the spike pins bite into the road surface, Efficient anti-slip effect is exhibited.

The anti-skid device of the present invention is adhered using a liquid instant adhesive. Therefore, if a liquid instant adhesive is prepared in combination with a plurality of the anti-slip devices of the present invention, the anti-slip device can be immediately mounted in an emergency and the anti-slip device can be used because the adhesive is unsuitable. Can be prevented from peeling off or taking a long time to adhere. A tire that has been stored for a long time has an aging layer on its surface, and there is a risk that the adhered anti-skid will peel off during driving.In that case, use a polishing sheet such as a paper file or cloth file to clean the tire surface. It is more reliable to bond the anti-skid device after polishing.

[0017]

1 to 3 show one embodiment of the present invention. The anti-skid device 1 for a tire of the present invention has a flat diamond-shaped rubber substrate 2 as a whole, and the back surface of the substrate 2 is a flat surface. Uphill slope 3 around substrate 2
And continues to the thick top surface 4. A ridge 6 is formed on the top surface of the substrate. The ridge 6 is a cross-shaped wide main ridge 6a extending in the diagonal direction of the rhombus and the longitudinal direction of the substrate 2 from an intermediate position of the main ridge 6a. It is composed of a narrow auxiliary ridge 6b extending in the perpendicular direction.

A groove 7 is provided between the main protrusion 6a and the auxiliary protrusion 6b.
Is formed. The main protrusion 6a has a V-shaped and circular recess 8
Is provided. Spike pins 9, which will be described later, are embedded in the four tips of the cruciform main protrusions 6a.
A circumferential groove 11 is formed on the peripheral surface of the. The tip of the spike pin projects about 3 mm from the ridge 6. The non-slip device in the figure is shown in full size, and the length of the substrate 2 is 135 m.
m, the width is 60 mm, the thickness of the ridge 6 is 7 mm, and the thickness of the groove bottom is 4 mm.

FIGS. 4 and 5 show the spike pin embedded in the anti-skid device of FIG. 1 in full size. The spike pin 9 has a bottom at the center of a collar 12 having a thickness of 1.5 mm and a diameter of 15 mm. Is a metal member to which a columnar body 13 having a height of 9 mm, a base end diameter of 5 mm, and a tip end diameter of 4 mm is fixed.
A through hole 14 having a diameter of 2 mm is provided at a position at which 2 is divided into four.

The through hole 14 formed in the flange 12 of the pin is provided on the substrate 2
This is for ensuring the fixing of the pin 9 to the pin. The flange 12 of the pin may be baked into the substrate 2 without providing the through hole 14, but in that case, it is effective to apply an adhesive reinforcing agent (for example, trade name Chemilock) to the flange 12. Is.

FIG. 6 shows a method of burying spike pins. A protrusion 16 is provided on the lower die 15 at a position corresponding to the groove 7 and the recess 8 of the substrate 2, and a short cylindrical pin support 17 is provided at a position corresponding to the spike pin 9. Turn the spike pin 9 upside down and insert it into the pin support 17,
A raw rubber sheet 18 of about 4 mm is placed, the upper mold 19 is lowered, and heat vulcanization is performed for about 6 minutes. After molding, it is peeled from the lower mold 15 to obtain the slip stopper 1 of the present invention.

The spike pin 9 manufactured as described above is
The bases of the flange 12 and the columnar body 13 are molded in the substrate 2 and the protrusions 6, and the rubber layers in the front and back of the flange 12 are connected by the rubber that has penetrated into the through holes 14 of the flange, and are fixed so as not to fall off. The circumferential groove 11 formed around the embedded spike pin 9 is formed by the pin support 17 of the lower mold.

7 and 8 are views showing the shape of the spike pin and the buried structure thereof. Spike pin 9 in FIG.
Has a long hole-shaped through hole 14, and is molded by being held by a pin support 17 in which fan-shaped claws are arranged in four directions. Around the spike pin of the molded anti-skid, there is a fan-shaped cavity 21 corresponding to the pin support. Providing a space around the spike pin 9 facilitates the discharge of snow adhering to the periphery of the pin 9 and helps secure the grip force of the pin.

The spike pin of FIG. 8 has a through hole 14 located on each side of the equilateral triangle, and the pin support 17 of the lower die.
Is shortened so that the spike pin is supported only at the tip, and no groove 11 is provided around the spike pin 9. As described above, various shapes and burying structures of the spike pin are conceivable, but it is preferable to select a suitable burying structure according to the characteristics of ice and snow in the usage area.

Next, a method of using the slip stopper of the present invention will be described. For example, when stacking on a slope of a snowy road, a liquid instantaneous adhesive is applied to the back surface 5 of the substrate so that the longitudinal direction of the anti-slip device is the circumferential direction of the tire and the tire is divided into four or five equal parts. Glue the anti-slip devices one by one to the positions. Generally, the width of the tread of studless tires is 1
The width is 40 to 150 mm, and even if the anti-slip device is adhered, a part of the tread in the width direction is exposed. Wait for the adhesive to harden and start climbing to escape from the ice and snow road. When the snowy road continues, the anti-skid device 1 is adhered to the tire as it is for running, and when the snowy road is completed, the anti-slip device 1 is removed from the tire.
Peel off.

The tire may have an aged layer on its surface, especially during the storage period in summer. The aging layer on the surface has peeled off in the case of a tire after running to some extent, but the aging layer remains on the surface of the studless tire that was first worn, and the anti-slip device was attached without removing it. If
There is a risk that the anti-skid device may peel off while riding. In this case, the portion of the tire surface to which the anti-skid device is to be attached is ground with a polishing sheet before the anti-slip device is attached. By polishing the tire surface, the aging layer on the surface peels off,
Further, by making the tire surface rough, the adhesion of the anti-skid device becomes stronger.

[0027]

As described above, since the anti-slip device of the present invention is used by being adhered to the outer peripheral surface of the tire, it can be easily attached in an emergency. Further, since the substrate is narrower than the width of the tire, the tire is not covered over the entire width and the tire function is not completely impaired. Since the collar of the spike pin is larger than the groove interval of the tread pattern of the studless tire, the back surface is supported by the tire block pattern, the spike pin does not get buried in the groove of the tire, and all the spike pins are surely on the road surface. Improves grip and grip. Also, since the substrate is diamond-shaped and the upslopes are provided around it, it is possible to avoid stress on the spike pins from concentrating on the bonded portion between the substrate and the tire tread, vibration is small, and running stability is improved. Can be increased.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of a slip stopper according to the present invention.

FIG. 2 is a side view of the non-slip device of the present invention.

FIG. 3 is a cross-sectional view of the non-slip device of the present invention.

FIG. 4 is a side view of the spike pin.

FIG. 5 is a plan view of the spike pin.

FIG. 6 is an explanatory view of a method for manufacturing a non-slip member according to the present invention.

FIG. 7 is a plan view showing another structure of the spike pin and an explanatory view of the buried structure.

FIG. 8 is a plan view showing still another structure of the spike pin and an explanatory view of the buried structure.

FIG. 9 is a plan view of a conventional slip stopper.

FIG. 10 is a cross-sectional view showing a mounted state of a conventional slip stopper.

[Explanation of symbols]

 2 Substrate 3 Upward slope 4 Top surface 5 Back surface 6 Projection 9 Spike pin 12 Tsuba 14 Through hole

Claims (4)

[Claims] 1. A rubber substrate (2) which is narrower than the width of the tire tread and is flat as a whole, and has a back surface of the substrate.
(5) is formed on a flat surface, and the top surface (4) of this substrate is a ridge (6).
The spike pin (9) having a collar (12) larger than the groove interval of the tread pattern of the tire on which the slip stopper is to be mounted is embedded in the ridge (6) portion. Anti-slip device for tires, characterized by: 2. The spike pin collar (12) has a plurality of through holes (1).
4), the rubber flows into the through hole (14) and solidifies when the spike pin (9) is embedded in the substrate (2), and the rubber layers on the front and back of the collar (12) are covered by the through hole (14). The anti-skid device for a tire according to claim 1, wherein the anti-skid device is connected by the rubber inside the bracket. 3. The substrate (2) is formed into a diamond shape, and an upslope (3) extending from the periphery of the substrate to the top surface (4) of the substrate is provided, and a cross-shaped ridge ((3) is formed at the center of the top surface (4). 3. The tire anti-skid according to claim 1 or 2, characterized in that 6) is arranged in the direction of the diagonal line of the rhombus, and a spike pin (9) is embedded at the tip of the cross of the ridge (6). Ingredient 4. A tire anti-skid set comprising a set of a plurality of the tire anti-skid devices according to claim 1, 2 or 3 and a liquid instant adhesive.