JP2510682Y2 - Anti-skid net for tires - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an anti-skid net for tires for ice and snow.

[0002]

2. Description of the Related Art When a vehicle runs on an ice-burned road, a spike fitting 31 is attached to a tire anti-skid net which is attached to a tire to prevent slipping, as shown in FIG. The spike metal fitting 31 is formed by bending a strip-shaped steel plate into a U shape, and each crossing portion a of the non-slip net A ′ is formed.
Is fitted to the net from the back side, both ends thereof are both bent inward and wound around the intersection a to be fixedly mounted. The spike fitting 31 protruding from the intersection a is It is intended to increase the grip of tires by digging into the ice-burned road surface.

[0003]

[Problems to be solved by the invention] However, since the spike fitting 31 described above is in constant contact with an ice-burned road surface, gravel or asphalt surface during running,
The contact surface with the road surface exposed on the front side is easily worn, and the wall thickness on the front side becomes thin within a relatively short period of time, which may reduce the grip effect, or the metal fitting 31 itself may fall off. Replacing was also difficult.

An object of the present invention is to improve the wear resistance of spike fittings mounted on a non-slip net for a tire.

[0005]

[Means for Solving the Problems] The means taken by the present invention to solve the above problems is to wind a spike metal fitting formed by bending a strip-shaped steel plate into a U shape from the front side of the cross section of the non-slip net body. A non-slip net for a tire that is bent and fixed in a fixed manner, wherein the spike metal fitting is preliminarily quenched and hardened only at a road surface contact portion including the above-mentioned both bent portions exposed on the front side of the intersection of the non-slip net body. Is.

[0006]

Since the present invention is constructed as described above, the road surface contact portion exposed on the front side of the spike fitting fixed to the intersection of the anti-skid net body, that is, the entire road surface contact portion including both bent portions is covered. The wear resistance is improved, and the reduction of the spike metal fittings is reduced over the entire road surface contact area, so that a good grip effect can be maintained for a long period of time, and the interval for replacing the spike metal fittings should be longer than before. Is something that can be done.

Further, since the spike metal fitting is pre-quenched and hardened only at the road surface contact portion including both bent portions exposed on the front side of the intersection of the anti-slip net body, the slip fitting is prevented at the bent portions at both ends of the metal fitting. No cracks will be generated due to the bending stress of the bending work when the net is attached to the intersection.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 3 shows a non-slip net A in which the spike metal fitting 1 is attached to the intersection a.

The spike metal fitting 1 is formed by bending a narrow strip steel plate having a hardness of about 350 HV into a U shape, and the spike metal fitting 1 in this state is fitted to the intersection portion a of the non-slip net A from the front side of the net A. Then, both ends of the metal fitting 1 are bent inward, and the metal fitting 1 is mounted by winding around the intersection a as shown in FIGS. 1 and 2.

The spike metal fitting 1 is the same as the metal fitting 1
Sliding the metal fitting 1 within the range of B exposed on the front side when it is attached to the intersection part a of the non-slip net A, that is, the range B which is the road surface contact portion 1a extending between both the bent portions 1c and 1c of the metal fitting 1. Induction hardening is performed before mounting on the intersection a of the stop net A, and the hardness after hardening of this portion B is increased to 450 HV or more.

When the spike metal fitting 1 is attached to the crossing portion a of the non-slip net A, the hardened portion is fitted with the front side facing up, and then both ends of the metal fitting 1 are folded into the back side of the crossing portion a. It is something to fix with.

The quenching range B is the spike metal fitting 1
Only the road surface contact part 1a including both bent parts 1c and 1c is kept, and the hardness of the bent parts 1b and 1b at both ends of the metal fitting 1 is suppressed to 450 HV or less, and the bent parts 1b and 1b are bent when the metal fitting 1 is attached. Be careful not to cause cracks during the process.

[Brief description of drawings]

FIG. 1 is a sectional view taken along line XX of FIG.

FIG. 2 is a perspective view showing an intersection of a non-slip net.

FIG. 3 is an overall view of a non-slip net.

FIG. 4 is a front view showing a state in which a conventional anti-skid net is attached to a tire.

[Explanation of symbols]

 A is a non-slip net B is a quenching range 1 is a spike metal fitting 1a is a road contact part 1c is a bent part

Claims (1)

(57) [Scope of utility model registration request] 1. A non-skid net for a tire, wherein a spike metal fitting formed by bending a strip-shaped steel plate into a U-shape is wound and bent from the front side of the intersection of the anti-slip net main body, and the spike metal fitting is provided. A non-skid net for a tire, characterized in that only a road surface contacting part including the above-mentioned both bent parts exposed on the front side of the crossing part of the non-slip net main body is pre-quenched and hardened.