JPS59202912A - Tire spike and fixing method thereof - Google Patents

Abstract

PURPOSE:To constitute the titled spike so as not to injur a road surface at the time of ordinary running, by so constituting that the spike of a spike tire is protruded from the surface of the tire at the time of braking by making use of a difference of the directions of forces to be applied to the tire at the time of running and the braking. CONSTITUTION:A spike 12 is made of hard steel 13 and soft steel 14 and a bar part 16 is formed in about T-shaped state through which the bar part 16 meets at an acute angle with a bottom 15 surface. An elastic component 17 made of rubber matter and an elastic component 18 are provided respectively in a tilting direction side and above the bottom 15 of the opposite side also. The spike 12 is protruded at a protruded height (a) in a tilting state to the surface of the tire 11 so that the spike 12 opposes to the turning direction (arrow) of the tire at the time of advance of a vehicle. At the time of an ordinary running, though the spike 12 is sunk at a projection quantity (b) smaller than (a) through force F from the left which is the upper part of a drawing, at the time of braking sufficient braking effect is generated at a projection quantity (c) larger than (a) by receiving the force F from the right side of the drawing.

Description

[Detailed description of the invention] The present invention relates to car tire spikes.

Currently, spikes on tires used to prevent car slippage on snowy and icy roads in the winter are installed in such a way that the head of the spike always protrudes from the tire surface; It does not change even when driving on a road surface with no surface.

Therefore, the protruding parts may be placed on concrete, asphalt, or road surfaces.
They scrape off markings on the road surface, which accelerates road damage, and the scraped parts become dust that scatters or floats around, causing serious environmental pollution and public health.

However, considering that there is no particularly good strategy for safe driving in winter, it is impossible to use spikeless tires. SUMMARY OF THE INVENTION The present invention provides a method for installing spikes and tires that alleviates these problems and allows for safe driving.

The present invention utilizes the difference in the direction of the force applied to the tire during driving and braking, similar to a cat's claw.

When necessary, that is, when braking, the spikes protrude above the tire surface to exert braking force, and when not necessary, that is, when driving, they sink into the tire rubber to an extent that does not interfere with driving, and do not scrape the road surface. 1. The above-mentioned functions are provided to the SnowQuick by either installing elastic bodies such as rubber and springs, or by using the tread as the elastic body.

The present invention will be described in detail below based on embodiments shown in the drawings.

Note that it goes without saying that the present invention is not limited to the embodiments.

FIG. 1 is a cross-sectional view of a main part showing a state in which a conventional tire spike is driven perpendicularly into a tire tread surface. [In the system 1, b1 is a tire, and 2 is a spike, which is usually constructed so that a hard steel 3 is on the right side and the outside is wrapped with a soft steel 4, and the bottom part is slightly wider than the upper rod-shaped part, forming a roughly T-shape. The height of the protruding part a from the tire surface remains almost constant regardless of the pressure from the road surface. .

FIGS. 2-1 to 2-3 are cross-sectional views similar to FIG. 1 illustrating the spike and its use and function in one embodiment of the present invention. In the figure, the spike 12 is made of hard steel E 3 and solid steel 14, as in FIG. It is formed in the shape of On the inclination direction side, a rubber elastic member 17 is disposed on the opposite side, and an elastic member 18 is also adhered or fused on the bottom portion 15, and the spikes 12 are attached to the surface of the tire 11 when the vehicle moves forward. It is driven in so that it is inclined from the radial direction of the vehicle (see Fig. 6) so as to face the rotational direction (indicated by the arrow) of the tire, and has a protruding height a. In this case, the bottom portion 15 of the spike is positioned parallel to the surface of the tire 11. However, as shown in Figure 2-2, when a force is applied from the F or Y direction, the spike 12 is driven in at an angle and the elastic members 17 and 18 are adhered or fused. The protruding height b is reduced and almost sinks to become lower than a.

Also, for the same reason, as shown in Figure 2-3, when a force is applied from the F direction during braking, etc., the spikes 12 stand up.
The protrusion height C becomes large and a sufficient braking effect can be exerted. The rod-shaped member may be of a considerable diameter or that of a piano wire. Or, since the spikes are more inclined when driving, the soft steel side always contacts the road surface, which can greatly reduce the damage caused by the hard steel side against the main aggregate of the road surface.

FIG. 3- ] to FIG. 3-3 are other embodiments of the present invention, -
1--FIG. 1 is a cross-sectional view similar to the example described above; In the figure, the bottom 25
A plate member 26 is provided at an angle.

Unlike the case shown in FIG. 2, the spike 22 has a plate shape as a whole. Rubber elastic members 27 and 28 (if) are adhered or fused to the upper part of the bottom on the inclined side and the opposite side, respectively. The spikes 22 formed in this way are attached to the tire 21 in the same manner as in FIG.
1, its function is exactly the same as that described in FIG. 2, as shown in each figure in FIG. Incidentally, the portion 2 on the inclined side of the plate member 26 shown by the dotted line is made of hard steel, and the other portions are made of soft steel.

FIG. 4 is a perspective view showing still another embodiment.

In FIG. 4, a plate-shaped member 32 is rotatably attached to a plate-shaped bottom 31 by a shaft pin 33 on both sides, and a spring 34 is stretched between the two members. 32 is elastically held.

Although the spike of this embodiment is formed in this manner, its function is exactly the same as that of the previous example. Therefore, it can be used by driving it into the tire surface in the same manner as in the example described above. Note that a portion 35 of the plate member 32 indicated by a dotted line is made of hard steel, and the rest is made of soft steel.

51'J-E and FIG. 5-2 are diagrams illustrating the case where the tread side wall of the tire is made of an elastic member.

As shown in FIGS. 5-1 and 5-2, spikes 42 according to the above embodiment are driven along the side walls of the tread projections 41 of the tire. By attaching it in such a position, the elasticity of the tread can be used to produce the same effect as when spikes are attached with elasticity or a spring.

FIGS. 6 and 7 are diagrams illustrating the direction in which the spikes according to the present invention are driven into the tire.

As shown in FIG. 6, the spikes 52 are driven in at an angle so as to face the direction of rotation of the tire 51 with respect to the direction of travel of the vehicle (indicated by a straight arrow). It is more effective to drive at an angle of 1 or more than to drive vertically as in the conventional method. Figure 7 is a front scale diagram of the tire with spikes 52,
When the tire 51 is inserted 1" into the side surface of the tire 51, it is effective to prevent the vehicle from skidding by installing the tire 51 at an angle in the direction of the center line of the width of the tire 51.

As described above, according to the present invention, it is possible to prevent damage to the road surface caused by spiked tires and various adverse effects associated with such damage.

[Brief explanation of the drawing]

FIG. 1 is a sectional view illustrating a state in which a conventional tire spike is driven in, and FIGS. 2-1 to 2-3 are sectional views similar to FIG. 1 showing one embodiment of the present invention. 3-1 to 3-3 are sectional views similar to FIG. 1 showing other embodiments of the present invention. FIG. 4 is a perspective view showing still another embodiment of the present invention. FIGS. 5-1 and 5-2 are diagrams illustrating a case where the tread sidewall of a tire is made of an elastic member. FIGS. 6 and 7 are diagrams illustrating the direction in which the spikes according to the present invention are driven into the tire. Explanation of the arrowhead 1, lj, 21. 5... Tires,
2,12,22゜4.1F 42.52...Spike, 3.13...
・Hard steel. △ 4, 14...Soft steel, 15. 25
．． 31...Bottom part, 16...Bar-shaped part,
17. 18. 27. 2s...Rubber elastic member, 26.32...Plate member, 33...
...Axis pin, 34...Spring, 41...
... Tread protrusion patent applicant Noriyoshi Shimizu Representative patent attorney 1) Osamu Dai/. Otsutsukuda) Of course Figure 5-2 Figure 7z ---11111-I

Claims (1)

[Scope of Claims] (1) A tire spike consists of a bottom portion and a rod-shaped portion or a plate-shaped portion, which are integrally molded or combined into a substantially T-shape, and the rod-shaped portion or plate-shaped portion is formed into a substantially T-shape. Add elasticity to the spikes by attaching rubber elastic bodies to the outside of the sides and at the top of the bottom, by placing a spring between the bottom and the bar or plate, or by using the tread of a tire. Tire spikes characterized by the addition of: -) The tire spike according to claim 1, wherein the angle between the bottom part of the tire spike and the rod-like or plate-like part is an acute angle. (3) A rubber elastic body is adhered or fused to the bottom upper part of the acute-angled side of the tire spike and the opposite side thereof. tire spikes. (4') Claims characterized in that the bottom part and the plate-like part of the tire spike are made of separate members, and they are pivoted by a pin, and further, a spring is stretched between the bottom part and the plate-like part. The tire spike described in paragraph 1. (j) A tire spike consists of a bottom part and a rod-shaped part or a plate-shaped part, which are formed into a substantially T-shape by integral molding or joining, and the outer side of the rod-shaped part or the plate part and the bottom part. Tire spikes that are made elastic by attaching a rubber elastic body to the second part, by stretching a spring between the bottom part and a rod-like part or a plate-like part, or by using the tread of the tire, can be used in cars. A method for removing a tire spike characterized by tilting it from the radial direction of the vehicle so as to face the direction of rotation of the tire when moving forward, or by tilting it toward the center of the width of the tire.