JP3034453U - Snow chain spikes - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a spike for a snow chain, in which a cemented carbide tip 2 is firmly attached to a spike body 1 so as not to come off easily. SOLUTION: In the recess 6 of the upper part 5 of the body 1 of the spike,
The cemented carbide chip 2 having the peripheral surface of the tapered surface 8 is mounted, and the peripheral edge portion 7 of the recess 6 is caulked and fixed to the tapered surface 8.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a snow chain spike, and more particularly to a device in which a carbide tip is firmly attached to the spike body.

[0002]

[Prior art]

 There are many snow chains made of rubber or plastics that are attached to the peripheral surface of the wheel, but these snow chains are equipped with multiple spikes. These spikes consist of a body attached to the snow chain body and a cemented carbide tip on the top of the body, and the cemented carbide tip serves as an anti-slip function when running on the road.

Here, in the conventional spike, a recess is formed in the upper part of the main body, and a cemented carbide tip is pressed into this recess. That is, the upper part has a large diameter and the lower part has a small diameter, and as a result, the cemented carbide tip having a tapered peripheral surface whose outer peripheral surface becomes smaller in diameter from the upper part to the lower part is simply press-fitted and fixed in the recess of the main body. It was

[0004]

[Problems to be solved by the device]

 According to the above-mentioned conventional technology, since the spiky body including the main body and the carbide tip is simply attached to the snow chain body by press fitting, the carbide tip tends to come off from the body. Therefore, measures have been taken to increase the length of the cemented carbide tip so that it will not come off easily, but it has the drawback that the material cost of the cemented carbide tip is high.

[0005]

【Purpose】

 Therefore, the object of the present invention is not only to provide an inexpensive snow chain spike that does not need brazing, but also to prevent the carbide tip from coming off from the spike body attached to the snow chain. The goal is to provide snow chain spikes that are durable and require very short carbide tips.

[0006]

[Means for solving the problem]

 In order to achieve the above object, the present invention has the following technical means. That is, the present invention will be described with reference to the reference numerals in the accompanying drawings corresponding to the embodiments. The present invention is a spike that is made of rubber, plastics, or the like, and that is attached to a snow chain mounted on the peripheral surface of a wheel. The spike is a snow chain spike consisting of a main body 1 and a cemented carbide tip 2 attached to the upper portion of the main body 1, and a recess 6 is formed in the upper portion 5 of the main body 1, and the spike is attached to the upper portion 5 of the main body. A part or all of the outer peripheral surface of the cemented carbide tip 2 to be attached is formed into a tapered surface 8 that becomes larger in diameter toward the lower side such that the upper side has a smaller diameter and the lower side has a larger diameter. After mounting in the concave portion 6 of the main body 1, by caulking the peripheral edge portion 7 around the concave portion 6 of the main body 1 toward the tapered surface 8 of the carbide tip 2, the top portion of the carbide tip 2 is exposed to the outside. This carbide tip 2 is used as a book in an exposed state. A snow chain spike, characterized in that formed by sticking one of the upper 5.

[0007]

[Embodiment of the invention]

 Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, a first embodiment will be described with reference to FIGS. FIG. 1 shows a state before attaching the cemented carbide tip 2 to the body 1 of iron or aluminum alloy or the like, and FIG. 2 shows a portion where the cemented carbide tip 2 is caulked and fixed to the body 1. The main body 1 is composed of a bottom flange 3 and a shank 4 integrally formed thereabove. Although the flange 3 is integrally formed below the shank 4 in this embodiment, the flange 3 may be integrally formed above the shank 4.

Now, the recess 6 is formed in the shank 4, that is, in the upper portion 5 of the main body 1. As a result, a peripheral portion 7 is formed on the upper portion 5. On the other hand, the outer peripheral surface 8 of the carbide tip 2 is tapered from the upper portion 9 to the lower portion 10. That is, the diameter of the upper portion 9 is made smaller than the diameter of the lower portion 10, and the tapered surface 8 is formed so that the diameter increases from the upper portion 9 to the lower portion 10.

Then, the cemented carbide tip 2 is mounted in the concave portion 6 of the upper portion 5 of the main body 1, and the peripheral edge portion 7 of the concave portion 6 is caulked toward the tapered surface 8. (Arrow A) Thereby, the cemented carbide tip 2 is fixed on the main body 1. Since the diameter of the tapered surface 8 increases from the upper portion 9 to the lower portion 10, the peripheral edge portion 7 is easily caulked, and the caulking is firmly performed.

After this, the entire spike is attached to the snow chain. For example, when making a snow chain using rubber or plastics material, the body 1 part should be embedded in the snow chain body during vulcanization or molding of the snow chain body, and the tip of the carbide tip 2 should be external. Processed to face the surface. Alternatively, after molding the snow chain body, the entire spike may be mounted in the mounting hole of the snow chain body so that the carbide tip 2 faces the outer surface.

As described above, the cemented carbide tip 2 is not attached to the main body 1 by brazing, and the cemented carbide tip 2 is fixed to the main body 1 by caulking, so that the cemented carbide tip 2 is hard to come off, has durability, and is hard to come off. Therefore, the length of the carbide tip 2 can be short.

Here, the cemented carbide tip 2 itself is shown as a macaroni type, in which the central portion 11 is formed to be hollow. By doing so, the edge effect of the spike becomes large.

FIGS. 3 and 4 show a second embodiment, FIG. 3 shows the cemented carbide tip 2 before crimping to the main body 1, and FIG. 4 shows the cemented carbide tip 2 after crimping and fixing. In this example, the cemented carbide tip is shown. The second tapered surface 8 is formed in the lower region, and this example also functions as in FIGS.

FIGS. 5 and 6 show a third embodiment, FIG. 5 shows the cemented carbide tip 2 before being crimped to the main body 1, and FIG. 6 shows that after it has been crimped and fixed, which is the same as in the first embodiment. However, this is an example in which only the central portion 12 above the cemented carbide tip 2 is hollow, and functions similarly to the first embodiment.

[0015]

【effect】

 As described above in detail, according to the present invention, the cemented carbide tip can be attached to the main body by crimping the peripheral edge of the concave portion of the main body to the peripheral edge of the carbide tip without brazing the carbide tip to the main body. Since it can be attached, it can be manufactured at low cost. In particular, it is not necessary to increase the length of the cemented carbide tip in order to prevent the cemented carbide tip from coming off the body, and yet the cemented carbide tip is hard to come off from the body and has durability.

[Brief description of the drawings]

FIG. 1 is a side view including a one-side cross section of a first embodiment showing a state before a cemented carbide tip is attached to a main body.

FIG. 2 is a side view including a one-sided cross section of the first embodiment showing a place where the cemented carbide tip is attached to the main body.

FIG. 3 is a side view including a one-sided cross section of a second embodiment showing a state before the cemented carbide tip is attached to the main body.

FIG. 4 is a side view including a one-sided cross section of a second embodiment showing a place where a cemented carbide tip is attached to a main body.

FIG. 5 is a side view including a one-sided cross section of a third embodiment showing a state before the cemented carbide tip is attached to the main body.

FIG. 6 is a side view including a one-sided cross section of a third embodiment showing a place where the cemented carbide tip is attached to the main body.

[Explanation of symbols]

 1 Main body 2 Carbide tip 6 Recessed portion 7 Peripheral portion 8 Tapered surface

Claims (2)

[Utility model registration claims] 1. A spike which is made of rubber, plastics or the like, and which is attached to a snow chain attached to a peripheral surface of a wheel, the spike being a main body 1 and a cemented carbide tip attached to an upper portion of the main body 1. In the snow chain spike consisting of 2, a recess 6 is formed in the upper part 5 of the main body 1, and a part or all of the outer peripheral surface of the cemented carbide tip 2 attached to the upper part 5 of the main body has a small diameter upward. , The tapered surface 8 having a larger diameter toward the lower side so that the lower side has a large diameter, and after mounting the cemented carbide tip 2 in the concave portion 6 of the main body 1,
By caulking the peripheral edge portion 7 around the concave portion 6 of the main body 1 toward the tapered surface 8 of the cemented carbide tip 2, the cemented carbide tip 2 is exposed in a state where the top portion of the cemented carbide tip 2 is exposed to the outside.
A spike for a snow chain, which is characterized by being fixed to the upper part 5 of the main body 1. 2. The spike for a snow chain according to claim 1, wherein the cemented carbide tip 2 is a macaroni type in which a central portion 11 is hollow.