JP3001915U - Spike tires that automatically enter and leave - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To provide a spiked tire that does not damage the road surface by causing the spike tip to protrude from the tire surface on snowy roads and retracting into the tires on snow-free roads. [Structure] Inside the tire, the spike pin 3 is inserted into a narrow hole that can be vertically moved by force, a space is provided at the upper part of the pin head, and the airway 7 is provided to the tire surface either forward or backward or diagonally downward. To provide. On snowy roads, snow powder passes through empty roads,
Gather in the space and grow into a lump of snow, causing the pins to stick out of the tire. Also, a large-diameter pin is movably inserted vertically in the tire in the vicinity of the spike pin, a space is provided above both pins to connect them, and a rubber bag is filled with antifreeze and filled. On a snowy road, snow enters a hole of a large-diameter pin and pushes up the large-diameter pin to push antifreeze liquid to the upper part of the spike pin, so that the tip of the spike pin projects from the tire.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The wood design relates to a structure of a spike tire that automatically prevents spikes on a snowy road and prevents a car from slipping, and on a snowy road the spikes automatically retract to prevent damage to the road surface.

[0002]

[Prior art]

 Cars are very dangerous because they slip and become uncontrollable when snowy, especially when snow accumulates and it freezes into plates. On the other hand, tire chains have been used effectively since ancient times. However, the installation and removal of tire chains was troublesome, and there was a point that it was impossible for women and the elderly. Therefore, when spiked tires that did not require the effort of installation and removal appeared, almost all automobiles in snowy areas were fitted with spiked tires. However, it turns out that this also has a major drawback. Although the snow disappeared in the spring, it may be hit by snow again and melted snow may remain in some places, so the spike tires will be used as they are for the time being, In addition, because it was installed in advance in preparation for the coming of the snow season, it eventually became possible to drive with a large portion of the year fitted with spiked tires. As a result, the road pavement was severely damaged, and the scraped pavement material became dust and flew into the air, threatening the function of the city. So spike tires are now in the direction of total abolition, and interested parties seem to be interested in how to easily install and remove tire chains and how to make their alternatives less slippery on snow. However, the anti-slip ability of spiked tires is outstanding, and the good maneuverability is difficult for the driver to throw away.

[0003]

[Problems to be solved by the device]

 Spikes are embedded in the tires of automobiles and the spike tip automatically protrudes from the tire surface when traveling on snow, and is automatically retracted and stored inside the tire when traveling on a snow-free road. The purpose is to provide.

[0004]

[Means for Solving the Problems]

 In the present invention, the diameter of the head of the spike pin is increased, and a hole having the diameter of the head is drilled from the rear surface of the tire to the front side up to the middle of the tire thickness, and the spike pin works from that position to the tire surface. After making a hole with a tightly movable diameter, add the spike pin from the back side of the tire into the hole, and close it with a space above the head of the spike pin. Two parallel or front and rear airways are pierced in parallel and obliquely downward, that is, toward the tire surface.

Further, in place of the oblique airway from the space above the head of the spike pin in the above structure, a hole having a diameter larger than that of the spike pin and its head is inserted parallel to and adjacent to the spike pin. After inserting the large-diameter pin from the rear side of the tire, leave a space above it and connect it with the space above the spike pin head, and put antifreeze liquid that fills both spaces in a rubber bag and seal it. Close the hole with the lid. The length of the tip of the large diameter pin is determined so that it does not protrude from the tire surface, and the head of the large diameter pin has a larger diameter than the spike pin head.

[0006]

[Action]

 While traveling on a snow-free road, the spike pin is pushed to the extent that the tip is aligned with the tire surface and holds its position due to the friction resistance with the hole, but it runs on snow or ice. Then, the powder is pushed into the space above the spike pin head one after another from the cavities before and after the spike pin and pushes the head of the spike pin, so that the spike pin overcomes the friction resistance and the tip protrudes from the tire surface to prevent slipping. To do. On a snow-free road, the snow and ice in the space above the head of the spike pin is melted by the heat of the tire and flows out from the airway in front of and behind the spike pin, and the tip of the spike pin is pushed by the road surface and enters the tire. . Therefore, the road surface is not damaged.

In the case of a tire equipped with a spike pin and a large diameter pin, when driving on a road without snow, the spike pin is inside the tire as described above, and since the large diameter pin is short, it is outside the tire surface. It doesn't appear. Therefore, it does not damage the road surface. When running on snow or ice, the powder easily enters the hole of the large diameter pin and is clogged in the space created by pushing up the tip of the large diameter pin, and the head of the large diameter pin has the antifreezing property of the space above it. Since the liquid is pushed into the space above the spike pin head, the spike pin tip projects out from the tire surface to prevent slipping. When you get out on a snow-free road, the lump of snow that pushed up the tip of the large diameter pin melts and flows out, so when the spike pin is pushed in by the road surface, the spike pin head releases the antifreeze liquid in the space above it. Push back to the space above the head of the large diameter pin and push down the large diameter pin. However, since the large-diameter pin is short, its tip does not come out of the tire surface and does not damage the road surface.

[0008]

【Example】

 FIG. 1 is a sectional view parallel to a tire surface of a part of a spike tire according to the present invention. 1 is the front surface of the tire and 2 is the rear surface. The head 4 of the spike pin 3 has a large diameter and has a flange shape. The diameter of the hole in which the spike pin 3 is inserted is such that the spike pin 3 is restrained by frictional resistance to the extent that the spike pin 3 does not pop out due to the centrifugal force caused by the running of the vehicle, but when force is applied, the spike pin 3 is lengthened vertically. Can be moved. The shape of the pin hole is determined so that when the pin tip comes out of the tire for a certain length, the head 4 is caught and stopped. The hole of the pin head 4 is extended above the pin head 4, that is, on the tire center side, and a space 5 is provided. Since the spike pin head 4 cannot enter the space 5 from below, the spike pin 3 is strongly pushed from the back side 2 of the tire, passes through the space 5 and enters a predetermined position, and then is sealed by the lid 6. It From the space 5, there are two front and rear or one of them either obliquely downward, that is, an airway 7 leading to the tire surface.

In the above structure, when the vehicle is traveling on a road without snow, the spike pin 3 is pushed by the road surface so that the tip of the spike pin 3 enters the inside of the tire surface 1 and does not damage the road surface. However, when the vehicle travels on a snowy road, powder of snow and ice on the road passes through the airway 7 into the space 5, and gradually accumulates to form a lump of powder or an ice lump, which causes the spike pin head 4 to move. By pushing, the tip of the pin can be projected from the tire surface 1 to prevent tire slippage on snowy roads. When the vehicle started to run on a snow-free road, the ice block that pushed the spike pin head 4 melted due to the temperature inside the tire and was released from the airway 4 to the outside of the tire by the centrifugal force, and at the same time, the tip of the spike pin 3 reached the road. It will not be pushed into the inside of the tire and damage the road surface.

FIG. 2 is a cross-sectional view taken along a plane including the center lines of the large-diameter pins 8 when the large-diameter pins 8 are provided in parallel with and close to the spike pins 3. The diameter of the large diameter pin 8 is larger than that of the spike pin 3 and the length is made shorter. Since the space 10 on the head 9 of the large diameter pin 8 has the same diameter as the head 9, the head 9 can enter this portion. The spaces on both pins are connected, filled with an antifreezing liquid contained in a rubber bag 12, and sealed with a lid 6 and a lid 11. When traveling on snow with this structure, powder of snow or ice is likely to enter the hole of the large-diameter pin 8 larger than the hole of the spike pin 3, so push up the large-diameter pin 8 and place it on the head 9. The antifreezing liquid in the rubber bag 12 of the space 10 is pushed into the space 5 on the spike pin 3 and the tip of the spike pin 3 is pushed out from the tire surface to prevent slipping. When the vehicle starts traveling on a snow-free road, the snow mass that had pushed up the large-diameter pin 8 melts out. At the same time, the spike pin 3 is pushed up to the road surface and the antifreeze liquid is applied to the upper portion of the large-diameter pin 8. Since it is pushed into the space 10 and therefore the tip of the large-diameter pin 8 is pushed down near the tire surface and stopped, the road surface is not damaged.

[0011]

[Effect of device]

 The present invention has a complete anti-slip structure that inherits the characteristic that the conventional spike tires almost completely prevent slipping when running on snowy roads, and at the same time removes the serious drawback of scraping the pavement of snow-free roads and scattering the dust. In addition, there is no need for manual work such as installation and removal until the tire is worn and replaced.

[Brief description of drawings]

FIG. 1 is a cross-sectional explanatory view parallel to a tire surface showing a spike pin.

FIG. 2 is an explanatory cross-sectional view taken along a plane including center lines of spike pins and large-diameter pins.

[Explanation of symbols]

 3. Spike pin 5. Space above spike pin 7. Empty road 8. Large diameter pin 10. Space on large pin 12. Rubber bag

Claims (2)

[Scope of utility model registration request] 1. The diameter of the spike pin head is increased,
From the back side of the tire to the front side, make a hole with the diameter of the head part way up to the middle of the tire thickness, and from that position to the tire surface, make a hole with a diameter that allows the spike pin to move vertically if force is applied. After inserting the hole from the back side into the hole, close the hole above the head of the spike pin leaving a space, and from the space to the tire surface diagonally below and parallel to the tire surface, front and rear two or either A spiked tire with a pin that automatically penetrates through one empty road 2. A large-diameter pin, which is thicker than the spike pin, and a hole into which the head of the spike pin is inserted are provided in parallel to the spike pin in place of the oblique airway of the above structure, and the large-diameter pin is inserted from the rear side of the tire. After that, leave a space above it and connect it with the space above the spike pin head, put antifreeze liquid that fills both spaces into a rubber bag and seal the hole, the tip of the large diameter pin does not come out from the tire surface The spike tire according to claim 1, wherein the length of the pin is determined so that the diameter of the head of the large diameter pin is larger than that of the spike pin head.