JPH0445923Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is based on a projection on the contact surface side that improves the anti-slip effect on snowy and icy roads by attaching and fixing it to the intersection of the anti-slip net for tires. This invention relates to improvements in spike fittings equipped with.

(Prior technology) Conventionally, this type of spike fittings were
As described in Publication No. 176005, there is a metal fitting that has a piece of cemented carbide embedded in the ground side of the main body of the metal fitting, with the top surface protruding to form a protrusion. The aim was to improve the durability of the spike fittings by suppressing wear on the fittings themselves.

(Problem that the invention aims to solve) However, although the above spike metal fittings are excellent in terms of durability, improvements are desired because the protrusions made of cemented carbide scrape the road surface and are likely to cause dust pollution. It was rare.

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

(Means for Solving the Problems) The technical means of the present invention to achieve the above object is to provide a protrusion on the surface of the metal fitting body made of a strip steel plate, and use the protrusion as the ground contact surface to prevent slippage for tires. In the spike metal fitting of the anti-slip net for a tire, in which the metal fitting body is bent and fixed to the intersecting part of the net so as to have a substantially square cross section, the protrusion is formed of the same material as the metal fitting body.

(Effects of the invention) In this invention, the protrusions of the spike fittings attached to the intersections of the anti-slip net for tires are press-formed onto the main body of the metal fitting made of a steel plate. The cost is significantly lower than that of cemented carbide, and there is less risk of scraping the road surface compared to cemented carbide, thus eliminating the problem of dust pollution.

In addition, with the spike metal fittings of the present invention, the protrusions are in direct contact with the road surface, so while maintaining the anti-slip effect, wear on the metal fitting itself is suppressed, resulting in improved durability.

Furthermore, even if the protrusion wears out, the entire metal fitting wears out and the recess on the back side communicates with the front and back sides to form a hole, so melted water on the snow and ice surface can escape through the hole. It also has the advantage of improved grip strength.

(Embodiment) An embodiment of the present invention will be described below based on the drawings. In the drawing, A indicates a spike fitting, which is appropriately selected and fixed at a desired location of the intersection b of the anti-slip net B. .

The spike fitting A is formed by integrally protruding protrusions 2, 2 made of the same material (steel material) as the fitting main body 1 near both ends of the surface 1a of a band-shaped fitting main body 1 made of a steel material, and has a non-slip net B. The two ends 1c, 1c are opposed to each other on the ground surface side so that the protrusions 2, 2 serve as the ground surface, and are bent to have a square cross section and fixedly attached to the intersection b.

The protrusion 2 is integrally provided on the surface 1a of the metal fitting main body 1 by press working, and the protrusion 2
A recess 3 is provided on the back surface 1b of the metal fitting main body 1 corresponding to the protruding height of the metal fitting body 1. In addition, in the illustrated example, the shapes and numbers are cylindrical and protrude one by one at a desired height, but they may also be provided in a prismatic shape or in an elongated shape in the longitudinal direction of the surface of the metal fitting body 1, or in plural numbers. Even if there is, it is not often limited.

In addition, as shown in FIG. 5, the spike fitting A' is provided with protrusions 2, 2 at a desired interval near the center of the surface 1a of the fitting main body 1, and anti-slip nets are attached to both ends 1c, 1c so as to face each other on the tire side. It may be bent and attached and fixed to the intersection part b of B.

Here, an example of anti-slip net B is shown as a core material
b″ is covered with a covering material b′ such as natural rubber, synthetic rubber, or synthetic resin, and the core material b″ can be of any type, such as natural fiber or synthetic fiber, and of any cross-sectional shape such as flat string or round string. However, preferably a string-like material such as a rope made of synthetic fibers such as polyamide or polyester is used. This net B is made by extruding a string-like rubber molded product with a core material in the center using a rubber extruder, and knitting this string-like material into a net shape using a knitting mold to create an unvulcanized molded product. , by press vulcanization using a mold with grooves in the form of a mesh, or by drilling diagonal grooves for forming a mesh on the surface of the press mold, and applying a synthetic rubber coating material to the bottom of the grooves. Next, a string-like core material is stretched over this using the concave groove as a guide to form a mesh in a press mold, and then a synthetic rubber covering material is filled on top of this mesh and press molded. Although it is formed by simultaneous vulcanization, an anti-slip net B made of rubber or synthetic resin alone may also be used.

[Brief explanation of the drawing]

Figure 1 is an overall perspective view of one embodiment of the spike metal fitting of the present invention, showing the state before bending and forming, and the state after bending and forming is shown by imaginary lines. Figure 2 shows the state of attachment to a tire anti-slip net. A plan view, FIG. 3 is a partially enlarged view of FIG. 2, FIG. 4 is a sectional view taken along the line -
The figure is a longitudinal sectional front view showing an attached state in another embodiment. In addition, in the figure, A, A'...spike metal fittings, 1...
Metal fitting body, 1a... surface, 2... protrusion, B... anti-slip net, b... intersection.

Claims (1)

[Scope of utility model registration request] A spike for a non-slip tire net, in which a protrusion is provided on the surface of a metal fitting body made of a band-shaped steel plate, and the metal fitting body is bent and fixed to the intersection of the anti-slip tire net with the protrusion in a roughly rectangular cross section, with the protrusion serving as the contact surface side. A spike fitting for a tire slip prevention net, characterized in that, in the metal fitting, the protrusion is provided by press working on the metal fitting body, and a recess corresponding to the protruding height of the protrusion is provided on the back surface.