JPS6194804A - Snow tyre auto pin - Google Patents

Abstract

PURPOSE:To prevent damage of a road surface and the occurrence of car powder pollution and to eliminate a work of replacing a tire during winter season, by a method wherein liquid, with which the interior of a rubber bag is filled, is disposed to the under surface of a pin body, and the pin body is moved forward and backward according to the temperature of a road surface. CONSTITUTION:A snow tyre auto pin 1 comprises a cylindrical base part 2 and a piston rodform pin body 3 moved forward and backward to and from the base part 2. In the base part 2, a circle hole 2C, with which the pin body 3 is engaged, is formed in the axis of an upper cover 2B secured to the upper surface of a cylinder body 2A. A pistonform disc 3A is secured to the lower end of the pin body 3 engaged with the circle hole 2C. A rubber bag 4A is positioned to the under surface of the disc 3A to fill the rubber bag with liquid 4, and the liquid 4 is frozen for expansion and decide for contraction according to the temperature of a road surface, and this causes the pin body 3 to move forward and backward.

Description

DETAILED DESCRIPTION OF THE INVENTION A1.Objective of the Invention A. Field of Industrial Application The present invention seeks to provide an anti-slip auto-pin for snow tires that operates depending on the road surface temperature.

Description of the Prior Art and its Problems The condition of road surfaces in snowy regions is not uniform, and varies from compacted snow, ice burn, sherbet, to dry snow where asphalt is exposed due to advanced snow melting. Vehicles in snowy regions have measures against snow such as spiked tires, snow tires, and anti-skid chains, but spiked tires are the most commonly used. However, these spiked tires cannot adapt to the various snow conditions mentioned above, and scrape the road surface, becoming a major cause of so-called vehicle dust pollution.

B1 Structure of the Invention - Means for Solving the Problem The present application attempts to solve the above-mentioned problem with the following structure.

In a device consisting of a cylindrical base 2 and a piston rod-shaped pin body 3 configured to move forward and backward with respect to the base 2, a liquid such as water 4 filled in a rubber bag 4A on the lower surface of the pin body 6 is disposed, and the liquid 4 is configured to move the pin body forward and backward as the liquid 4 freezes and expands and thaws and contracts depending on the road surface temperature.

Embodiment 1 of the invention is a snow tire auto pin of the invention, which has a cylindrical base 2 and moves back and forth with respect to this base 2! It is composed of a piston rod-shaped pin body 6. Therefore, in this base portion 2, a circular hole 2C into which a pin body 3 is inserted is provided at the axis of an upper lid 2B fixed to the upper surface of the cylinder body 2A. A piston-shaped disk 6A is fixed to the lower end of the pin body 3 inserted through the circular hole 2C.

4 is a liquid such as water filled in a rubber bag 4A disposed on the lower surface of the disk 6A. Reference numeral 5 denotes a cylindrical protective stopper inserted into the base 2 so as to be positioned around the outer periphery of the liquid 4 in the rubber charger.

C. How to use: Like a known anti-slip pin, the pin body 6 is implanted with the upper end thereof protruding outward from the tread surface 6A of the tire 6. By adding an additive to the liquid 4, the temperature at which the liquid freezes and expands can be adjusted to a desired temperature in a range other than 0°C, such as +2°C to -2°C. .

Effects of the C9 invention A: For example, snow-covered road surfaces, ice-covered road surfaces, etc. at 0°C.
When driving on a road surface that is
The upper end 6' protrudes from the tread surface 6A of the tire (by the way, when water becomes ice, the volume becomes 1:2).

When driving on a road surface with a temperature of 0°C or higher, the liquid 4 melts and contracts, and as a result, the pin body 6 is pushed downward by the weight of the vehicle, and the upper end 6' is below the tread surface 6A. It becomes stuck inside the tire. In this case, the pin body 3 does not protrude onto the tread surface even if centrifugal force is exerted by the rubber pressure of the tire.

C. When the road surface temperature is 0°C and the vehicle is driven at low speed in snowy or icy conditions, the liquid in the rubber bag freezes and expands, causing spikes to protrude from the tire tread surface. However, even if the road surface temperature is the same, it is possible to drive at high speeds when the asphalt road surface is exposed, and if you drive long distances in this condition, the liquid in the rubber bag will defrost and contract due to the frictional heat of the tires.
The pin body will be buried within the tire.

2. Even if the road surface temperature is other than 0°C (for example, +2°C or -2°C), it is possible to adjust the freezing and expansion of the liquid to the desired temperature by mixing an additive into the liquid in the rubber bag.

The size of the application is / 3mm-57mmXL1
3m++ can be made into a structure that is not much different from known pins in terms of degree, so it is possible to drive it into tires mechanically.

As is clear from the above, the present application prevents damage such as scraping of the road surface and prevents vehicle powder pollution.

It is possible to reliably achieve various benefits such as eliminating the need for tire replacement work during the winter and preventing traffic accidents.

[Brief explanation of drawings]

Fig. 1 is a plan view, Fig. 2 is a front view, Fig. 6 is a vertical cross-sectional view with the pin body extended and extended, Fig. 4 is a longitudinal cross-sectional view with the pin body retracted, and Fig. 5 is a vertical cross-sectional view with the pin body retracted. FIG. 3 is a front view of the embodiment. 11. , Snow Tire Autopin, 26. , cylindrical base, 610. Pin body, 413. Liquid, 4A. , rubber bag.

Claims (1)

[Claims] In a device consisting of a cylindrical base 2 and a piston rod-shaped pin body 3 configured to move forward and backward with respect to the base 2, a liquid such as water 4 filled in a rubber bag 4A on the lower surface of the pin body 3 A snow tire auto pin characterized in that the liquid 4 is configured to move the pin body forward and backward as the liquid 4 freezes and expands and thaws and contracts depending on the road surface temperature.