JPH04358908A - Fitting structure of rubber spike pin to installation surface - Google Patents

Abstract

PURPOSE:To strengthen biting of rubber spike pins into a snowy surface. CONSTITUTION:A recessed part 6 is formed in the ground contact surface 2 of a tire 1 for vehicle which is the setting surface of a rubber spike pin 3, and the rubber spike pin 3 is erected in the recessed part 6 with a clearance 8 around a pin part 5 and at a recessed part surrounding wall 6A. Because the area around the pin part 5 and the recessed part surrounding wall 6 are provided with the clearance 8, even if the ground contact part is deformed or crushed with load pressure, the deformation is absorbed by the clearance 8 and the pin part 5 is not affected.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching spike pins made of hard rubber to a contact surface that is attached to an automobile tire, shoe sole, or the like.

0002

2. Description of the Related Art In order to prevent slipping on ice and snow, there are some types of automobile tires and shoe soles equipped with metal spike pins. However, the generation of dust caused by metal spike pins became a problem, and the use of metal spike pins was regulated.

[0003] Therefore, there is active research into maintaining the properties of the rubber itself that forms automobile tires and shoe soles in a soft state even at low temperatures and increasing its adhesion to ice and snow surfaces. On the other hand, there have been attempts to form spike pinans not from metal but from other materials, one of which is to use hard rubber. As a hard rubber, for example, patent application No. 2-274 of the present applicant
No. 240 etc. are disclosed as materials.

0004

[Problems to be Solved by the Invention] This application aims to further advance the practical application of spike pins formed using hard rubber.
This paper attempts to present the attachment structure of the rubber spike pin to the attachment surface and the specific shape of the spike pin.

[0005]

[Means for Solving the Problems] The present invention forms a recess in the ground surface which is the mounting surface, and provides a gap between the circumference of the pin portion into which the rubber spike pin is inserted into the ice and snow surface and the peripheral wall of the recess. It is characterized by the fact that it was erected. Further, the shape of the pin portion is preferably a polygonal prism or a polygonal pyramid.

[0006]

[Operation] When the rubber spike pin is pressed into contact with an ice or snow surface, the rubber spike pin sinks into the contact surface due to the load pressure, providing frictional resistance. Therefore, even if the contact surface is deformed or crushed by the load pressure, the deformed or crushed portion is absorbed into the gap between the recess and the pin part of the rubber spike pin, and does not affect the pin part, yet can withstand the load pressure. The pin portion protrudes from the ground plane and sinks into the ground plane.

[0007] Furthermore, by making the pin part columnar, it has a long length and promotes long-term use against wear, and by making the cross section polygonal, there are many corner parts, which increases the sharpness of the bite. The pyramidal shape increases the strength of the pin portion.

[0008]

Embodiments Next, embodiments of the present invention will be explained based on the drawings. FIG. 1 is a longitudinal sectional front view showing a rubber spike pin 3A attached to the ground contact surface 2 of an automobile tire 1 according to an embodiment of the present invention. A recess 6 is formed in the ground plane 2, a rubber spike pin 3A consisting of a cylindrical base 4A and a thin cylindrical pin 5A is fitted with the base 4A into the bottom of the circular recess 6, and an adhesive 7 is applied. The pin part 5A and the recess part 6
A gap 8 is formed between the peripheral wall 6A and the peripheral wall 6A.

FIG. 2 shows a rubber spike pin 3 on the sole 9.
FIG. 7 is a longitudinal sectional front view showing another embodiment in which B is attached. The spike pin 3B is a columnar body in which the base 4B and the pin part 5B have the same thickness, and the spike pin 3 has the base 4B formed on the sole 9.
The sole 9 is inserted deeper from the bottom of the recess 6 having a wider surface than B.
It is embedded in the thick part of and fixed with adhesive 7,
A gap 8 is formed between the pin portion 5B and the peripheral wall 6A of the recess 6.

FIG. 3 is a longitudinal sectional front view showing another embodiment in which a rubber spike pin 3C is attached to the contact surface 2 of the automobile tire 1. The spike pin 3C is prevented from coming off by the collar-shaped base 4C of the spike pin 3C, and the spike pin 3C is fitted and fixed together with the mounting metal fitting 10 into a recess 6 formed in the ground plane 2 and integrated with the mounting metal fitting 10. 5C and the peripheral wall 6 of the recess 6
A gap 8 is formed between A and A.

FIG. 4 is a perspective view showing an embodiment of the rubber spike pin 3D, which is composed of a cylindrical base 4D and a quadrangular columnar pin portion 5D having a cross section within a circle with a diameter shorter than the base 4D. Also, the pin part 5D has a diameter of 4 mm ± 2 mm.
Polygonal prism that fits within the range, base 4D has a diameter of 5mm ± 2mm,
The best overall height was about 13 mm±5 mm. Figure 5
1 is a perspective view of a rubber spike pin 3E showing another embodiment, which is composed of a cylindrical base 4E and a pin portion 5E formed into a square pyramid from the base 4E. The base 4 in FIGS. 4 and 5 is not limited to a cylindrical shape, but may be a prismatic shape, and the pin portion 5 may be another polygonal prism or a polygonal pyramid.

FIG. 6 shows a rubber spike pin 3F composed of a rod having no steps or the like on the pin portion 5F and the base portion 4F.
Figure 7 shows a polygonal pyramid-shaped rubber spike pin 3G, with the thick part being the base 4G and the thin tip part being the pin part 5G.
That is.

[0013]

[Effects of the Invention] As described above, in the present invention, the rubber spike pin is installed with a gap between it and the circumferential wall of the recess formed on the ground surface, which ensures that it penetrates into the ice and snow surface and provides sufficient frictional resistance. This provides an anti-slip effect. Furthermore, by making the pin part a polygonal column or a polygonal pyramid, many corner parts are formed, which has the effect of increasing the chance of getting caught on the ice and snow surface and increasing the frictional resistance.

[Brief explanation of drawings]

FIG. 1 is a partially vertical front view of an automobile tire showing an embodiment of the present invention.

FIG. 2 is a partially vertical front view of a shoe sole showing another embodiment of the present invention.

FIG. 3 is a partially longitudinal front view of an automobile tire showing another embodiment of the present invention.

FIG. 4 is a perspective view showing an example of a rubber spike pin.

FIG. 5 is a perspective view showing another embodiment of the rubber spike pin.

FIG. 6 is a perspective view showing another embodiment of the rubber spike pin.

FIG. 7 is a perspective view showing another embodiment of the rubber spike pin.

[Explanation of symbols]

1 Automobile tires 2　Ground surface 3 Rubber spike pin 4 Base 5 Pin part 6 Recess 6A Recessed wall 8 Gap 9 Sole of shoe

Claims (3)

[Claims] [Claim 1] A recess is formed in the ground plane which is the mounting surface,
A structure for attaching a rubber spike pin to a mounting surface, characterized in that a rubber spike pin is raised in the recess with a gap provided between the periphery of the pin part that sinks into the ice and snow surface and the peripheral wall of the recess. 2. The structure for attaching a rubber spike pin to a mounting surface according to claim 1, wherein the pin portion is a polygonal prism. 3. The structure for attaching a rubber spike pin to a mounting surface according to claim 1, wherein the pin portion is a polygonal pyramid.