JPH0767703A - Non-skid structure - Google Patents

Abstract

PURPOSE:To prevent slips on rainy road surface and prevent abrasion of pins on fine road surface by placing an extruding material such as water absorbing polymer, etc., below the pins inserted loosely into blind holes. CONSTITUTION:Many blind holes 5 with diameters at the surface 5a small and at the inside 5b expanded are provided properly on the silicone rubber plate 1. Extruding materials 2 made of high polymer which swell when they absorb water are stuffed into such holes and pins 3 molded of butyl rubber which are, in shape, smaller than the diameter of the holes at their tips 3a and larger than the diameter of the holes at their lower part are inserted above said materials 2. When the extruding materials 2 of high polymer absorb water, they swell and push out the pins 3 above them so that the tips 3a of the pins protrude from the silicone rubber plate 1. In rainy days slips are prevented with butyl rubber with high friction coefficient protruding. In fine days as butyl rubber is not pushed out and, accordingly, does not protrude, the abrasion of butyl rubber can be avoided but silicone rubber with high abrasion resistance touches the road surface. Thus, the structure can cope with both the dry road surface and the wet road surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoe sole and a structure for preventing tires from slipping.

[0002]

2. Description of the Related Art The conventional slip prevention structure for shoes and tires is
Grooves or irregularities are provided on the surface of the shoe sole or tire to increase the friction coefficient.

[0003]

When a conventional shoe sole or tire surface is subjected to slip-preventing treatment, it is possible to improve the wearing comfort or riding comfort on a dry road surface and to satisfy both the action effects of preventing slippage on a wet road surface. Difficult to do.

Further, not only is it difficult to select a material which satisfies both the wear resistance and the improvement in frictional force, but the two are contradictory.

[0005]

According to the present invention, a pin is extruded onto a shoe sole or a tire surface by means of a water-absorbing high-molecular polymer or the like that absorbs water on the road surface when it rains, thereby exhibiting an anti-slip effect. When the road surface is dry, the pin is prevented from being pressed to prevent the pin from being worn.

For that purpose, a hole is formed in a rubber body such as a shoe sole,
A high-molecular polymer that swells when it absorbs water is placed in the lower part of this hole, and a pin made of a material with a large friction coefficient is placed on it. It is designed to push out to prevent slipping.

[0007]

EXAMPLES The figures show examples in a wet state.

On the surface of the silicone rubber plate 1, a large number of blind holes 5 having a small hole diameter 5a and a widened inside 5b are appropriately arranged, and a pushing member 2 of a high molecular polymer which swells when water is absorbed is packed in the holes. , A pin 3 molded of butyl rubber having a tip 3a smaller than the hole diameter and a lower portion 3b larger than the hole diameter is fitted in the upper part thereof, and the silicone rubber plate 1 is further guided to the high-molecular polymer in a capillary shape. The water channel 4 was provided separately. In addition, in this embodiment,
The tip surface of the pin 3 has a serrated cross-section to prevent slippage. In this embodiment, a polymer extruding member 2 is used.
Absorbs water, swells, pushes out the upper pin 3, and the tip 3a of the pin projects from the silicone rubber plate 1.

As shown in FIG. 2, it is more effective if an elastic body 6 such as a spring is provided between the periphery of the hole diameter 5a of the silicone rubber plate 1 and the upper surface of the small diameter portion 3a of the pin 3. .

When the friction coefficient between the dry state and the wet state of the slip prevention structure of the embodiment was measured, the pushing member 2 did not swell in the dry state and the pin was not pushed out from the silicone rubber plate. The tip of the pin does not rub against the grounding surface because it is retracted or is pressed by an elastic body, and shows the friction coefficient of the surface of the silicone rubber plate that is the grounding surface. As a result, the butyl rubber, which is the material of the pin, showed a large friction coefficient.

[0011]

EFFECTS OF THE INVENTION Since the present invention is constructed as described above, butyl rubber having a large friction coefficient is projected on a rainy day to prevent slippage, and the butyl rubber is not pressed and does not project on a sunny day. The wear-resistant and wear-resistant silicone rubber comes into contact with the road surface, making it compatible with both dry and wet road surfaces, and also for the reciprocal relationship between the wear resistance of the material used and the friction coefficient. It has a slip prevention structure that can be dealt with.

[Brief description of drawings]

FIG. 1 is an embodiment diagram of a slip structure of the present invention showing a wet state.

FIG. 2 is a diagram of another embodiment in which an elastic body is incorporated.

[Explanation of symbols]

 1 Silicone rubber plate (support plate) 2 Extruding member 3 Pin 4 Water guide pipe 5 Blind hole 6 Elastic body

Claims (6)

[Claims] 1. A support such as rubber is provided with at least one blind hole having a small hole diameter and a wide inner part, and the tip is smaller than the hole diameter with a material having a large friction coefficient in the hole.
A non-slip structure in which a pin having a large lower portion is loosely fitted, and a push member made of a water-absorbing high-molecular polymer or the like is arranged below the pin. 2. The slip prevention structure according to claim 1, wherein an elastic body is provided between the small diameter portion of the pin and the periphery of the hole diameter of the support. 3. The slip prevention structure according to claim 1, wherein a water conduit is separately formed from the surface of the support to the pushing member. 4. The slip prevention structure according to claim 1, 2 or 3, wherein a support made of rubber or the like is a silicone rubber plate. 5. The slip prevention structure according to claim 1, 2 or 3, wherein the pin is made of butyl rubber. 6. The slip prevention structure according to claim 1, 2 or 3, wherein the tip end surface of the pin is subjected to slip prevention processing such as unevenness.