JPS62163809A - Spike for automobile tire - Google Patents

Abstract

PURPOSE:To easily extent and retracet a spike, by movably engaging the tail part of a shank into a hollow case-shaped flange further providing a resilient member to be arranged while forming connecting construction as a stopper between the both of these shank and flange. CONSTITUTION:A flange 1 if formed into a case type of almost hollow thin cylindrical shape, further its parallelly arranged upper and bottom surface 2 and 3 respectively provide circular holes 21, 31 to be drilled. While a shank 4, fitted into the flange 1 through each hole 21, 31 is formed into an almost column shape from a head part 5, having a tip 51, to a tail part 6, further an end edge 61 of the tail part 6 is protrusively provided annularly toward the periphery. Here the bottom surface 3 of the flange 1, acting as a stopper for the end edge 61, prevents the shank 4 from falling off to outside the flange 1. And a hole 7 is hollowly provided from the center of the tail part 6 toward the inner part of the shank 4, further a spring 9 is provided to be arranged between a bottom surface 81 of a cover 8, fixed to the hole 21, and a bottom surface 71 of the hole 7.

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention improves spikes attached to automobile tires.
We aim to ensure safe driving and reliable braking on icy and snowy roads, prevent wear and tear on the paved road surface and the generation of so-called vehicle powder pollution, and promote and maintain industrial activities and provide comfortable living during the winter season in northern countries and before and after. trying to measure the

``Conventional technology'' Various improvements to spikes have been announced so far, but the method that retracts into the rubber layer when hit on a hard paved road surface, but does not retract on an icy and snowy road surface, from manufacturing to mounting, pulling out, and replacing. Although everything seemed certain, nothing that seemed to be a relatively simple low floor was found.

``Problems to be solved by the invention'' It can be said that it is extremely difficult to improve spikes by relying solely on their material, shape, additions, etc. In other words, as the temperature difference in the surrounding rubber layer suddenly becomes larger, it becomes difficult to respond quickly to the material, and the shape and additions of the tire also require structural changes such as holes for mounting, and tires are required to be changed when being pulled out and replaced. There is a tendency for problems to occur, such as objects being more likely to remain in the holes.

``Means for Solving the Problems'' The present invention separates the conventionally integrated spike into two parts, the shank and the flange, and allows the shank to move within the flange for a predetermined length. A spring is installed between the shank and the flange so that when the shank falls on a hard paved road surface, it retracts into the flange to a predetermined length, and when it does not, it is pushed out from the flange to a predetermined length to form an approximately conventional shape. The idea is to provide a stopper mechanism made of rubber or the like to limit movement to a predetermined length.

``Function'' It is not easy to quickly and frequently move the shank in and out of the flange to a predetermined length as the tire rotates. For this reason, in the present invention, special considerations have been made to the shape and engagement structure of each part inside the spike. , which greatly ensures its action and durability.

``Embodiment'' (Firstly, the present invention consists of making a so-called flange body (hereinafter referred to simply as flange) into a kind of box shape, and in which a shank body body (hereinafter referred to as a single yank) and a tail part are movable. When a spring, rubber or other elastic body (hereinafter simply referred to as rubber) is placed between the flange and the shank, and a pressure exceeding a specified level is applied to the head of the shank in the direction of the flange. The spring or rubber is compressed and deformed so that the shank can be retracted into the flange to a predetermined length, and if this is not the case, the shank is pulled out of the flange to a predetermined length by the rebound, expansion, and elongation action of the spring or rubber. Spikes for automobile tires that can be pushed out until the shank reaches its head, and have a stopper or other suitable structural structure between them to prevent the shank from moving beyond a predetermined length in the direction of its head and coming off the flange. be.

The above-mentioned time when a pressure exceeding a predetermined level is applied means that the spikes of the present invention are attached to a conventional car tire and are applied to a concrete or other hard paved road surface (hereinafter simply referred to as a road surface).
This includes cases where the vehicle is placed on the road surface or the vehicle is driven and braked on this road surface.

Note that the predetermined length is approximately 1 to 3 birds, but this change is not prohibited. An example of the use of the spring will be described below with reference to the drawings.

■As in the conventional example, the spikes of the present invention include two types, the so-called macaroni-shaped and the pin-shaped in appearance; however, since this type is not particularly relevant to the gist of the present invention, the appearance is pin-shaped for the sake of convenience. Illustrated only with an example. Although the size is similar to that of conventional examples, for convenience of drawing and explanation, the balance of each part shown is not necessarily balanced, and curved parts etc. that are manufactured in practice are not shown as right angles or straight lines. do.

The flange 1 shown in Figures 1, 2, and 3 has a substantially hollow thin cylindrical box shape, and has a circular hole 2 and a hole in the upper surface 2 and lower surface 3, which are parallel in Figures 2 and 3, respectively. 3I and hole 2
．． The 0 diameter is set to be smaller than the diameter of the hole 31 (see FIG. 4). Hole 2. The shank, which is fitted and engaged with the flange 1 through the hole 31, has an approximately cylindrical shape from the head 5 having the tip 51 to the tail 6 on the opposite side, and has an edge 6 of the tail 6 on the outer periphery. The opposite side protrudes in an annular shape. The surface of the shank 40 in a required section from the tail 6 to the head 5 can be tapered.

The outer diameter of the annularly protruding edge 61 is smaller than the diameter of the hole 21. From the diameter of the dog, the edge 6. The outer periphery of the shank 4 directly below the hole 3. As shown in FIG.
Part of the upper side is the edge 6. It is assumed that the lower side of the yank 4 acts as a kind of stopper to prevent the yank 4 from escaping out of the flange 1 below it.

A hole 7 is recessed in the required manner on the inner surface of the cylinder from the center of the tail 6 toward the inner depth of the shank 4 (see FIG. 5), and the lower surface 8 of the lid 8 is fixed to the hole 21 adjacent to the upper surface 2. A spring 9 is arranged between the bottom surface 71 of the hole 7 and the bottom surface 71 of the hole 7 as follows.

That is, the spring 9 is placed on the lower surface 8. as shown in the example shown in the third figure. and bottom 7
10 to the desired degree of contraction and tension, and the lower surface 8. and bottom surface 71
Due to the repulsive elasticity generated by the restraining pressure received from the flange 1, the shank 4 tends to be constantly pushed out in the direction of the head 5, and as mentioned above, a part of the lower surface 3 is pushed out from the edge 6. The shank 4 is pulled out and tightened by the stubber action exerted on the shank, so that the spikes are combined to form an integral spike as shown in the second figure. The state shown in the second diagram will be referred to as the normal state of the spike according to the present invention.

When the spring 9 has a spiral shape, it is preferable that the hole 7 has the inner surface shape of a cylinder and the spring 9 is disposed substantially inscribed therein. Further, a pin 10 of a required length can be attached to the center of the lower surface 81, as shown in FIG. Separately, a fitting convex 11 can be attached to the center of the lower surface 8°, as shown by broken lines in FIG. Fitting convex 11
, the spring 9 does not have the hole 7 at all, unlike the example shown in the third figure.
It is assumed that there is an example that is enclosed within. The setting of the pin 10 or the fitting protrusion 11 is such that the repeated expansion and contraction action performed by the spring 9 along the inner circumference of the hole 7 is accurate, thereby preventing fatigue damage, etc., and ensuring strong and strong force resistance over a long period of time. do.

In FIG. 6, the donkey spring 9 is in a relaxed state, and an example is shown in which the spring 9 is loosened and stretched by a section compared to the vertical length Y in FIG. Don't interfere with things.

In the present invention, when the flange 1 of a spike in a normal state is fixed and a pressure of more than a predetermined level is applied to the head 5 as shown by the arrow C in FIG. However, assuming that the new tire's rubber layer (including the tread) is located from above to the position indicated by the broken lines B...B in FIG. If the distance X from the tip (indicated by a broken line) is set to a predetermined length, the spring 9 shown in the third figure is further compressed to separate the tail portion 6 upward from the lower surface 3 by the length of X. Various designs related to these are possible.

In the present invention, the shank 4 is fitted from above the flange 1, the spring 9 is fitted into the shank 4, the lid 8 is placed on the spring 9, and the entire top and bottom are If the gap is compressed and the lid 8 is fixed above the hole 21, the result will be as shown in the third figure. The lid 8 can be fixed by welding to the hole 21, or by providing a groove for screwing between the outer periphery of the lid 8 and the inner periphery of the hole 21, and welding can be performed on the groove. I can do things. If the lid 8 is enlarged to form an upper lid (not shown) that covers the upper surface 2 and part of the cylindrical circumference of the flange 1, it is possible to create a combination that does not easily come off due to rotational fitting or the like.

When the spring 9 is replaced with rubber or other elastic body, it can be attached to the lower surface 8 of the lid 8 with an adhesive or the like.Even if the elastic body is further compressed by a predetermined degree from the state shown in FIG. Most of the above examples of using springs can be applied, except that consideration should be given to the shape, volume, and material so as not to cause damage.

"Effects of the Invention" As described above, the present invention has the following effects.

1 The spike of the present invention is designed so that when a car with the spike mounted on the tire runs on a hard paved road surface such as concrete, the spike 5 is applied from the road surface to the tip 5 and the shank 4 to the flange 1 by the pressure shown by the arrow C. By retracting the shank to a predetermined length, there is no wear on the road surface caused by so-called spikes. It can be pushed out from the ground, which is expected to improve safe driving and reliable braking.

2. According to the present invention, so-called vehicle dust pollution is significantly reduced, contributing to the health and comfortable life of people around the roadway, and at the same time, driving is severely restricted during the winter season in northern countries and before and after that. It is possible to promote and maintain industry.

3. According to the present invention, it is possible to reduce the large amount of pavement repair costs that are repeated every year and contribute to the improvement of municipal management.

[Brief explanation of drawings]

Fig. 1 is a front view of a spike for an automobile tire according to the present invention excluding the cover (shown in Fig. 7), Fig. 2 is a side view of the spike shown in Fig. 1 as seen in the direction of arrow A, and Fig. 3 is a A cross-sectional view of the one in Figure 1 with the lid added, taken along the I-I arrow, Nos. 4, 5, and 6.
The figure is an explanatory example including an exploded view of FIG. 3, FIG. 7 is a front view of the lid, and FIG. 8 is a side view of the lid.

Claims (1)

[Claims] 1. The flange is a kind of box type, into which the tail of the shank is movably fitted and engaged, an elastic body made of a spring, rubber, etc. is arranged between the flange and the shank, and the flange is attached to the head of the shank. When more than a predetermined pressure is applied in the direction, the spring or elastic body is compressed and deformed so that the shank can be retracted into the flange to a predetermined length, and when the pressure is not applied, the spring or elastic body rebounds and recovers. The shank can be pushed out of the flange to a predetermined length by the expansion/extension action, etc., and a stopper or other device is installed between the two to prevent the shank from moving beyond the predetermined length toward the head and escaping from the flange. Spikes for automobile tires characterized by an appropriate shape and structure with union relations, etc.