JPH0340642Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a spike fitting that is fixed around mesh intersections of an anti-slip net for tires.

(Prior Art) The spike fittings A' fixed around mesh intersections of conventional anti-slip nets for tires are made of a U-shaped metal member, as shown in FIGS. 5 and 6. After fitting from the back side to the mesh intersection B of the anti-slip net, the parts of both sides b and b' of the metal fitting A' that protrude from the net surface are folded inward by a machine, and the parts around the intersection are It was stuck.

However, since the above-mentioned spike fitting A' is fixed by bending the side pieces b and b' along the mesh intersection of the easily deformable synthetic rubber net, the same side pieces b and b If the net mesh intersection B is deformed or the position where the bending force is applied is shifted when folding the net mesh intersection B using a machine, the metal fitting A' will be deformed without following the shape of the net mesh intersection B.

Like this, the mesh intersection B where the spike metal fittings are netted.
If the metal fittings are not fixed accurately around the metal fittings A, there is a risk that the metal fittings will not be secured properly and will come off the net while driving, and there is also a risk that the deformed metal fitting A' may damage the net. ′ had to be reattached, which required extra effort.

In addition, JIS hard steel wire is usually used for the spike fitting A', but if the hardness is increased, the side piece b,
Since cracks occur when bending b′, the upper limit hardness is
It was around HB350. As a result, the spike metal fittings had a short lifespan.

(Technical Problem) The technical problem of the present invention is to prevent the deformation of the spike metal fittings that occurs when fixing them to the intersections of anti-slip tire nets, and to extend the life of the spike metal fittings.

(Means for solving the technical problems) The means taken by the present invention to solve the above-mentioned technical problems is that the spike metal fittings are fixed around the mesh intersections of the anti-slip net for tires. It is composed of a band-shaped front metal fitting and a back metal fitting, and both ends of the front and back metal fittings are bent into an arc shape to form a substantially C shape, and the same front and back metal fittings are made with the openings of the front and back metal fittings facing each other. Both arcuate portions of either one of the metal fittings are configured to be resiliently fitted to the inner surface of both arcuate portions of the other metal fitting, and a convex strip or a recess is provided along the outer peripheral surface of both arcuate portions of the one metal fitting. In addition to providing grooves, grooves or protrusions that fit into the protrusions or grooves described above are also provided on the inner circumferential surface of both arcuate portions of the other metal fitting.

(Function) After fitting one of the front and back metal fittings into the intersecting part of the mesh of the anti-slip net, when both circular arc parts of one metal fitting are fitted between the inner surfaces of both circular arc parts of the other metal fitting,
Both the front and back metal fittings are wound and fixed around the mesh intersection. At this time, both the front and back metal fittings are fitted while being guided by the fitting between the protrusions and grooves provided on both circular arc parts, and both the circular arc parts of one metal fitting are fitted between the inner surfaces of both circular arc parts of the other metal fitting. The metal fittings are fitted in a resilient manner, and both arcuate portions of one metal fitting are latched within both arcuate portions of the other metal fitting, and the protrusions and grooves are completely fitted.

(Effects) Since the present invention is as described above, it produces the effects listed below.

To fix it to the anti-slip net, it is only necessary to fit one of the front and back metal fittings into the intersecting part of the mesh, and then fit the same metal fitting into the other metal fitting, and the fixing work is extremely simple.

When the front metal fitting and the back metal fitting are fitted together, both the circular arc parts of one of the two metal fittings are elastically fitted and latched between the inner surfaces of the circular arc parts of the other metal fitting. Since the protrusions and grooves provided on both arcuate parts of both metal fittings fit together, one metal fitting will not slip out from inside the other metal fitting, and the metal fittings will not shift in the short side direction after fitting. There is no need to put it away.

The protrusions and grooves provided on both the arcuate parts of the front and back metal fittings serve as guides when fitting the two metal fittings together, making it possible to smooth the fitting process and ensure that the metal fittings are fitted together accurately. can be combined.

Since the hardness of the front metal fittings can be made over HB440, the wear resistance is improved and the life of the spike metal fittings can be extended.

Materials suitable for the purpose can be selected, such as wear-resistant steel for the front metal fitting and carbon steel or resin for the back metal fitting.

(Example) An example of the present invention will be described below based on the drawings.

A shown in FIGS. 1 to 4 is a spike metal fitting for a non-slip tire net, which consists of a front metal fitting 1 and a back metal fitting 2. As shown in FIG. When attaching to part c, both metal fittings 1 and 2 are fitted together as shown in FIG. 4.

The front metal fitting 1 is made by bending both ends of a band-shaped plate cut into a predetermined length into a circular arc shape, forming the whole into a substantially C-shape, and having a concave groove along the center of the outer peripheral surface of both circular arc parts 1a, 1a. 1b is formed in a recessed manner, and the dimension between the two circular arc portions 1a, 1a is adjusted to the width of the mesh intersection c of the anti-slip net C.

Like the front metal fitting 1 described above, the back metal fitting 2 is formed into a substantially C shape by bending both ends of a band-shaped plate into an arc shape, and the back metal fitting 2 is formed into a substantially C shape by bending both ends of a band-shaped plate into an arc shape. , protrusions 2b, 2b are formed in a protruding manner to fit into the groove 1b of the front metal fitting.

Further, the dimension between the inner surfaces of both the arcuate parts 2a and 2a of the back metal fitting 2 is made somewhat smaller than the dimension between the outer circumferential surfaces of both the arcuate parts 1a and 1a of the front metal fitting 1, whereby both the metal fittings 1, The outer circumferential surfaces of the two circular arc parts 1a, 1a of the front metal fitting 1 are elastically fitted between the inner circumferential surfaces of the two circular arc parts 2a, 2a of the back metal fitting 2, with the openings of two facing each other. There is.

In addition, the above-mentioned front metal fitting 1 uses a somewhat thick plate because it comes into contact with the road surface, for example, 1.5 mm.
The back metal fitting 1 is 1.
Use something about mm.

Further, after the front and back metal fittings 1 and 2 are formed as described above, they are hardened to improve their wear resistance.

To attach the spike metal fitting A to a predetermined mesh intersection c of the anti-slip net C, first fit the front metal fitting 1 into the mesh intersection c from the front side of the net C, and then attach the back metal fitting 2 to the mesh intersection c of the top metal fitting 1 in the above state. Net C on the outside
Fit from the back side, and connect both metal fittings 1 and 2 to the mesh intersection c
Wrap it around and fix it. (Second
Figure) When fitting the front metal fitting 1 and the back metal fitting 2, the protrusions 2b, 2b provided on both arcuate parts 2a, 2a of the back metal fitting 2
is fitted along both grooves 1b, 1b of the front metal fitting 1, and both the front and back metal fittings 1, 2 are fitted smoothly while being guided by the fitting between the above-mentioned protrusion 2b and groove 1b. .

In addition, the front metal fitting 1 fitted into the back metal fitting 2,
Due to the elastic force of the circular arc parts 1a, 2a of both the front and back metal fittings 1, 2, the inner surfaces of both the circular arc parts 2a, 2a of the back metal fitting 2 are fitted in an elastic state, and the circular arc parts 1a, 1a of the front metal fitting 1 are connected to the back metal fittings. 2, and the concave grooves 1b, 1b of the circular arc portion 1a of the front metal fitting 1 and the protrusions 2b, 2b of the circular arc portion 2a of the back metal fitting 2 are completely fitted. As a result, the front metal fitting 1 is fitted into the back metal fitting 2 so as not to slip out thereof, and displacement of both the front and back metal fittings 1 and 2 from each other in the short side direction is suppressed.

By providing the above-mentioned protrusions 2b and grooves 1b accurately along the center of both the circular arc parts 1a and 2a of both the front and back metal fittings 1, 2, the front and back metal fittings 1, 2 are positioned relative to each other and accurately. It can be fitted to the

[Brief explanation of drawings]

Fig. 1 is a front view showing the anti-slip net for a tire with the spike fittings of the present invention attached to the predetermined intersections, Fig. 2 is a sectional view taken along the line X-X, and Fig. 3 shows the front fitting before fitting. FIG. 4 is a perspective view showing the back metal fittings, FIG. 4 is a perspective view showing the spike fittings in a fitted state, and FIGS. 5 and 6 are
The figure is a front view showing a conventional spike fitting. In the figure, A: spike metal fittings, 1: front metal fittings, 1a:
Arc part, 1b: groove, 2: back metal fitting, 2a: arc part, 2b: protruding strip.

Claims (1)

[Scope of Claim for Utility Model Registration] In a spike fitting that is fixed around the mesh intersection of a non-slip tire net, the spike fitting is composed of a band-like front metal fitting and a back metal fitting, and both ends of the front and back metal fittings are provided. With the openings of both the front and back metal fittings facing each other, the two circular arc parts of one of the front and back metal fittings are bent between the inner surfaces of the two circular arc parts of the other metal fitting. The metal fittings are configured such that they can be fitted in a resilient state, and are provided with protrusions or grooves along the outer circumferential surface of both arcuate parts of one of the metal fittings, and are provided with the protrusions or grooves on the inner circumferential surface of both arcuate parts of the other metal fitting. A spike fitting for an anti-slip tire net that has a concave groove or protrusion that fits into the concave groove. The spike fitting for a non-slip tire net according to claim 1, which is registered as a utility model, wherein the front metal fitting and the back metal fitting of the spike metal fitting are made of JIS hard steel wire material and have a hardness of HB440 or more.