JPS6255202A - Rubber tire with nonslip - Google Patents

Abstract

PURPOSE:To obtain a rubber tire having a nonslip effect, by providing several thin pipe-like holes having a depth greater than the bore diameter thereof, in the tread surface of the tire in a grid-like pattern so that ice-melting is partly obtained due to the tread pressure against a snow covered road. CONSTITUTION:Several pipe-like holes 4 having a depth greater than the bore diameter 3 thereof, are formed in the tread surface of a rubber tire 9 so that these holes 4 provide a grid-like structure. In this arrangement, no tread pressure is applied to the parts corresponding to the holes 4 so that the surface of ice is not melted. Further, the other parts 2 having no holes make into contact with the road surface so that the ice surface is melted at those parts. Such melted water enters into the holes 4. Accordingly, the amount of melted water is reduced, and further, since the water enters into the holes 4, the amount of water existing along the tread surface is reduced. further, concavities and convexities 6 are formed on the road surface and the opening section 3 of the holes 4, producing the meshing engagement therebetween, thereby it is possible to produce a slip preventing effect.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to anti-slip properties for rubber tires.

The anti-slip purpose of conventional rubber tires was the uneven pattern and fine slits on the ground contact surface, but rubber tires with spikes are often used for use on frozen and snowy roads. It is well known that wear and tear on road surfaces, pollution caused by generated dust, and its negative effects on the human body have become social problems.

The present invention was invented to solve these problems.

The reason why rubber tires slip on frozen ice and snow road surfaces (5) (hereinafter referred to as water surfaces) is that due to the ground pressure of the rubber tires, the melting point of the water surface below the rubber tire's contact surface decreases, and the ice melts, causing the rubber tire's contact surface to slip. A layer of water forms between the tire and the water surface, which lifts the surface of the rubber tire and acts as a lubricant, allowing it to slide.

Therefore, the anti-slip effect of the pattern on the contact surface of a rubber tire is significantly diminished, so conventional rubber tires use tire chains or tungsten spikes to prevent slipping on the water surface. And so.

In the present invention, ground pressure is substantially applied to the water surface only on the non-perforated portion (2) of the lattice structure surface. As it descends, the water surface in this area naturally melts, forming a water layer (
7) can be done.

However, since ground pressure is not applied to the area corresponding to the opening area of the many holes (3), the water surface does not melt.

Moreover, the water created by melting enters this opening (4) and is removed from the ground surface, and while there is ground pressure, the melting and removal of the melt water progresses, and the water corresponds to the ground surface and the opening surface. Thin irregularities are formed on the water surface. (6) Also, depending on the temperature conditions of the water surface, once melted water enters the space of the opening, it is released from the ground pressure, freezes inside the opening, and becomes integrated with the water surface. As a result, between the rubber tire and the water surface (5), the rubber tire and the ice protrusion (6) are interlocked by the opening area of the hole in the lattice structure surface, producing an anti-slip effect.

, This effect is created continuously by utilizing the upward and downward phenomenon of the melting point of ice, depending on the ground pressure of the rubber tires, depending on the ground pressure of the rubber tires relative to the water surface, depending on the driving conditions of the vehicle, such as starting, transferring, and stopping. Ru.

In addition, by setting the depth of the opening appropriately, it is possible to expect this anti-slip effect, which is related to the degree of wear of the rubber tire. However, the rubber tire of the present invention maintains its effect for a longer period of time, making it significantly more economical. It is.

Moreover, since it prevents the formation of a water layer on the ground surface even on a wet road surface due to rain or the like, an anti-slip effect can be obtained and it can be used in all weather conditions.

[Brief explanation of drawings]

FIG. 1 is a plan view of a lattice structure seen from the ground contact surface of a rubber tire according to an embodiment of the present invention. FIG. 2 is a longitudinal sectional view taken along line A-B in FIG. 1. FIG. 3 shows a state in which ice protrusions are formed due to infiltration of the ice cube. FIG. 5 shows a state in which the infiltrated water is released from the ground pressure, freezes again, and forms overlapping ice protrusions. 1 is an example of a lattice structure. 2. is the grounding part of the lattice structure. 3 is the opening part of the lattice structure. 4 is a tubular space with a lattice structure. 5. is an icy road. The number is the ice protrusion. 7. is water formed by melting. 8. is a refrozen ice protrusion. 9. is the part that continues to the tire body.

Claims (1)

[Claims] A kind of lattice structure is created by drilling a large number of tube-shaped holes deep in depth compared to the opening diameter in the ground contact surface of a rubber tire. (1) The contact pressure against the icy and snowy road surface is A rubber tire that uses the phenomenon of partial melting of ice (7), which occurs when the melting point of ice falls, to prevent slipping.