JPH04100903U - Anti-slip tire spike fittings - Google Patents

Abstract

(57) [Summary] [Purpose] By providing protrusions made of the same material as the main body of the metal fittings on the spike fittings that are attached to the intersections of anti-slip tire nets, it is possible to protect the road surface and prevent dust pollution.
It also improves the durability of the spike fittings themselves. [Structure] Projections 2 are provided by press working near both ends of the surface of a metal fitting main body 1 made of a steel material of appropriate hardness. A depression 3 is provided on the back side of the protrusion 2 in correspondence with the protrusion height of the protrusion 2. The protrusion 2 is subjected to induction hardening, and its hardness after hardening is higher than that of the metal fitting body 1. The metal fitting body 1 is attached to the intersection of the anti-slip net by bending both ends inward so that the protrusions 2 are on the ground surface side. [Effect] Quenching the protrusions increases the wear resistance of the protrusions themselves, improving the durability of the spike fittings as a whole. Additionally, when the protrusion wears away, the depression on the back side becomes a hole that penetrates the metal fitting body, and water that melts on the snow and ice surface escapes through the hole, improving grip strength.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is designed to prevent slippage on snowy roads by attaching and fixing anti-slip tire nets to the intersections. Spy with protrusions on the ground side to improve the anti-slip effect on wet and icy roads. Regarding improvement of metal fittings.

0002

[Conventional technology]

Conventionally, this type of spike metal fittings were made of gold as described in Japanese Utility Model Application Publication No. 17600/1983. A piece of cemented carbide metal is embedded in the ground side of the tool body, and the top surface is made to protrude to form a protrusion. The protrusions made of cemented carbide improve the anti-slip effect and also improve the slip resistance. The aim was to improve the durability of the spike fittings by suppressing wear on the main body of the spike fittings.

0003

[Problem that the idea aims to solve]

However, although the spike fittings mentioned above are excellent in terms of durability, they are made from carbide metal. Improvements were desired because the protrusions scraped the road surface and were likely to cause dust pollution. .

0004 The present invention was devised in view of these problems of the prior art. The purpose of this is to protect the road surface and prevent dust pollution, and to protect the metal fittings themselves. It also provides durability.

[0005]

[Means to solve the problem]

The technical means of the present invention to achieve the above object is to A protrusion is provided on the surface of the tool body, and the protrusion is used as the contact surface side of the anti-slip tire net. Spike metal fittings for anti-slip tire nets made by bending and fixing the metal fittings at the intersection. The protrusion is made of the same material as the metal fitting body, and the protrusion is formed on the back surface of the protrusion. A recess corresponding to the protruding height is provided, and the protrusion is hardened. Features.

[0006]

[Effects of the idea]

This invention is based on the spike fittings that are attached to the intersections of anti-slip tire nets. Since the spring is press-formed into the main body of the metal fitting made of steel plate, it is possible to replace the conventional cemented carbide metal. The cost is significantly lower compared to those with protrusions, and it also improves the road surface compared to cemented carbide. There is less risk of scraping the material, thus eliminating the problem of dust pollution.

[0007] In addition, even with the spike fittings of this invention, the protrusions are the ones that come into direct contact with the road surface. This reduces wear on the metal fitting itself while maintaining its anti-slip effect, resulting in increased durability. Durability can also be improved. Moreover, by hardening the protrusions, the protrusions themselves are wear resistant. Abrasion resistance is increased, thereby further promoting the improvement in durability.

[0008] Furthermore, even if the protrusions wear out, the entire metal fitting will wear out and the dents on the back side will be connected to the front and back sides. Since holes are formed through the holes, melted water on the snow and ice surface can escape through the holes. It also has the advantage of improving grip strength.

[0009]

【Example】

Hereinafter, one embodiment of the spike fitting of the present invention will be explained based on FIGS. 1 to 4 or 5. Ru. In the figure, A indicates the spike metal fittings, and attach them to the desired location of the intersection b... of the anti-slip net B. Select as appropriate and install and fix.

0010 In FIGS. 1 to 4, the spike fitting A has a hardness of, for example, about 300 to 450 HV. Near both ends of the surface 1a of the belt-shaped metal fitting body 1 made of steel material having Anti-slip net B Bend both ends 1c, 1c inward so that the protrusions 2, 2 become a ground surface at the intersection b. At least it's installed and fixed.

[0011] The protrusion 2 is integrally protruded from the surface 1a of the metal fitting body 1 by press working. A recess 3 is provided on the back surface 1b of the entire metal fitting 1 corresponding to the protruding height of the protrusion 2. It will be done. In the illustrated example, the shape and quantity are cylindrical and protruding one by one at the desired height. However, it may be provided in a prismatic shape or in an elongated shape in the longitudinal direction of the surface of the metal fitting body 1. There is no limitation even if there are multiple numbers.

0012 In addition, this protrusion 2 should be used before attaching the spike fittings A to the anti-slip net B. It is hardened and the hardness after hardening is increased to about 500 to 1000 HV or more. Ru.

[0013] In addition, the spike fitting A' protrudes near the center of the surface 1a of the fitting main body 1 as shown in FIG. 2 and 2 are provided at a desired interval, with both ends 1c and 1c facing each other on the tire side. It may be bent and attached and fixed to the intersection b of the anti-slip net B.

[0014] Here, an example of anti-slip net B is explained based on the drawing. Anti-slip net B is a core material b'' that is covered with a covering material b' such as natural rubber, synthetic rubber or synthetic resin. The core material B" can be made of natural fibers, synthetic fibers, etc., as well as flat strings and round strings. The cross-sectional shape of the material does not matter, but it is preferably made of polyamide or polyester. Use a string-like material such as synthetic fiber rope. And this net B is a rubber press. The extruder extrudes a string-like rubber molded product with a core material in the center, and this string-like product is knitted. A mold with mesh-like grooves made by knitting it into a net shape using a mold to create an unvulcanized molded product. Formed by press vulcanization, or for forming an oblique mesh on the surface of the press mold A groove is drilled, a synthetic rubber covering material is placed in the lower part of the groove, and then a string-like core is placed on top of this. The material is stretched around using the groove as a guide to form a mesh in the press mold, and then this It is formed by filling synthetic rubber covering material over the stitches and vulcanizing it at the same time as press molding. However, anti-slip net B made of rubber or synthetic resin may also be used. .

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the spike metal fitting of the present invention, in which the state before bending of both ends is shown by solid lines, and the state after bending is shown by imaginary lines.

FIG. 2 is a plan view showing the state of attachment to the anti-slip tire net.

FIG. 3 is an enlarged view of the main part of FIG. 2;

FIG. 4 is a sectional view taken along line (4)-(4) in FIG. 3;

FIG. 5 is a longitudinal sectional front view showing an attached state of another embodiment.

[Explanation of symbols]

A, A’ Spike fittings 1 Metal fittings body 1a Surface 2 protrusions B Anti-slip net b Cross section

Claims (1)

[Scope of utility model registration request] 1. A spike for an anti-slip tire net, which has a protrusion on the surface of a metal fitting body made of a strip-shaped steel plate, and the metal fitting body is bent and fixed to the intersection of the anti-slip tire net with the protrusion on the ground surface side. A sliding tire for a metal fitting, characterized in that the protrusion is provided by press working on the metal fitting body, a recess corresponding to the protruding height of the protrusion is provided on the back surface, and the protrusion is hardened. Spike fittings for stop net.