JPH05238213A - Grounding part construction of slip-preventive molded article having spike pin molded out of hard rubber - Google Patents

Abstract

PURPOSE:To mount a spike pin molded out of hard rubber on the grounding part such as the tire of a vehicle, the underside of a shoe, and the shoe of a stick, so as to further exhibit the slip-preventive effect. CONSTITUTION:A protection membrane 2 is provided on the side circumference of a spike pin molded out of hard rubber, a gap 5 is provided outside the protection membrane 2, and they are mounted in the mounting recessed part 4 of base material 3. Hereby, the spike pin 1 molded out of hard rubber is protected and prevented from deterioration, injury, and a laceration by means of the protection membrane 2, and deformation and the like of the base material 3 due to loading pressure is absorbed by the gap 5 so as to prevent the influence to the spike pin 1. Further, against internally generated heat due to vibration or rotation of the spike pin 1 molded out of hard rubber having hardening property at a low temperature, cooling action through the protection membrane is performed by ice and snow stuffing the gap 5 so as to maintain hardening of the spike pin 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a grounding portion of a non-slip molded product having a spike pin made of hard rubber which can be used for a vehicle tire, a shoe sole or a stone cane of a cane.

[0002]

2. Description of the Related Art Metallic tires have been used for anti-slip spike pins such as vehicle tires, shoe soles or stone canes on canes on icy and snowy roads. However, the metal spike pin
In particular, the use of the spike pin for vehicles is regulated because of the problem of dust generation, and molding of the spike pin with a new material replacing metal is being studied.

As a new material, a spike pin using a hard rubber has been proposed. According to the application of the present inventor, a rubber having a property of softening at normal temperature but hardening at low temperature (special Japanese Patent Application No. 63-235771) and rubber with increased hardness (Japanese Patent Application No. 2-274240) have been developed.

[0004]

SUMMARY OF THE INVENTION The present invention provides a concrete structure in which a spike pin molded of hard rubber is mounted on a grounding surface of a vehicle tire, shoe sole, cane, or the like, and has an anti-slip effect. It is something that will be demonstrated even more.

[0005]

The present invention is characterized in that a spike pin made of hard rubber is provided with a protective film on the side circumference and a gap is provided outside the protective film, and the spike pin is attached to a base material. The structure of the grounding portion of a non-slip molded product having spike pins molded of hard rubber.

The hard rubber may be a rubber which is always cured without being affected by the outside air temperature, or may be a rubber which has a property of being hardened at a low temperature. The protective film may be made of the same material as the base material forming the ground portion, or at least a material softer than the hard rubber covering the base material. or,
The gap provided outside the protective film of the spike pin may be provided on the entire side surface of the spike pin or on a part of the surface.

[0007]

When the spike pin made of hard rubber is pressed against the snow and snow surface, the spike pin made of hard rubber is pushed into the contact surface under load pressure to obtain friction resistance. Therefore, even if the ground contact surface is deformed or crushed by the load pressure, the deformed portion or the crushed portion is absorbed by the gap outside the protective film of the spike pin, does not affect the spike pin, and can withstand the load pressure. The pin protrudes from the ground surface, making it difficult to insert it into the ground surface.

Further, in the spike pin having a property of hardening at a low temperature, even if heat is generated due to friction or vibration between the ground contact surface and the ground (ice snow surface), ice snow enters the gap and cools through the protective film. It works, maintains a low temperature, and hardens the spike pin.

Further, the protective film provided on the side circumference of the spike pin has a function of preventing deterioration, damage or tear of the hard rubber forming the spike pin.

[0010]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a spike pin formed of a hard rubber (for example, a rubber compound of Japanese Patent Application No. 2-274240) or a rubber having a property of curing at a low temperature (for example, a rubber compound of Japanese Patent Application No. 63-235771). 1. A protective film 2 made of rubber or synthetic resin is provided around the outer periphery of 1, and a gap 5 is provided between a mounting recess 4 of a base material 3 such as a vehicle tire, a shoe sole or a cane of a walking stick, and a peripheral wall 4A of the mounting recess 4. Then, the spike pin 1 is attached.

The rubber or synthetic resin forming the protective film 2 is the same material as the rubber or synthetic resin forming the base material 3. However, it is not always necessary that the protective film and the base material are formed of the same material. For example, the protective film 2 is made of rubber and the base material 3 is used.
May be made of a heterogeneous material made of synthetic resin. The material of the protective film 2 is not determined in relation to the base material 3, but may be any material that is softer than the hard rubber of the spike pin 1.

FIG. 2 shows another embodiment, in which the protective film 2 for inserting the spike pin 1 is integrally formed with the base material 3, and the groove or notch provided on the outer side of the protective film 2 is formed. A gap 5 is formed and a hard rubber spike pin 1 is inserted into the protective film 2.

The spike pin 1 may have any shape such as a columnar shape, a polygonal pillar shape, a conical shape, or a pyramid shape, and the means for mounting it on the base material 3 may be, for example, an adhesive or a mounting metal fitting. The base portion may be formed in a brim shape so as to prevent the base portion from being pulled out or to be fixed.

[0014]

As described above, according to the present invention, since the protective film formed by hard rubber and covering the spike pins is mounted on the base material with a gap provided outside, the base material is prevented from being deformed by the load pressure by the ground surface. Since it is absorbed in the gap and does not affect the spike pin, the spike pin has the effect of reliably biting into the snow and snow surface. The protective film is supported by the hardness of the spike pin and is integral with the spike pin.

Further, in the case of a spike pin formed of rubber having a property of curing at a low temperature, the spike pin is cooled through the protective film by ice and snow clogging the gap on the outer side of the protective film. It also has the effect of preventing softening of the spike pin even if internal heat is generated due to rotation or rotation.

Further, the protective film has an effect of preventing deterioration of the spike pin exposed to the outside air due to the gap and generation of flaws and tears due to external causes, and enhancing the performance and durability of the spike pin. To do.

[Brief description of drawings]

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

FIG. 2 is a vertical sectional front view showing another embodiment of the present invention.

[Explanation of symbols]

 1 Spike pin molded with hard rubber 2 Protective film 3 Base material 4 Mounting recess 5 Gap

Claims (4)

[Claims] 1. A spike pin made of hard rubber, characterized in that the spike pin made of hard rubber is provided with a protective film on the side periphery thereof, and a gap is provided on the outside of the protective film, and the spike pin is made of hard rubber. The structure of the grounding part of the non-slip molded product. 2. The structure of the grounding portion of a non-slip molded article having a spike pin molded from the hard rubber according to claim 1, wherein the hard rubber has a property of hardening at a low temperature. 3. The structure of the ground portion of a non-slip molded product having a spike pin molded of hard rubber according to claim 1, wherein the protective film is formed of the same material as the base material. 4. The structure of the grounding portion of a non-slip molded article having a spike pin molded of hard rubber according to claim 1, wherein the protective film is formed of a softer material than hard rubber.