JP3099303B2 - Vehicle tires - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle tire applicable to automobile tires, aircraft tires, bicycles and other vehicle tires.

[Related Art] In recent years, tubeless tires have become widespread in all types of vehicles.

[Problems to be Solved by the Invention] Since tires endure the weight of the body by air, if the amount of air decreases, the body cannot be safely supported. Tire air leaks are one of the things drivers must keep in mind, and finding the right air pressure for their driving and usage is a way to keep the tires and the car itself in better condition. It can also be said.

[0004] That is, a minute air leak or the like occurs in a tire as time passes. Therefore, since the pressure of the tire air chamber may be lower than a predetermined pressure,
Tire maintenance and inspection are always required. In addition, a sharp decrease in tire pressure during driving may cause a serious danger to the operation of the vehicle.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle tire capable of realizing simplicity of maintenance and maintenance, safety of vehicle driving, etc., while taking into consideration a sudden change in the ground contact radius of the tire due to wheel balance and puncture. Is what you do.

[Means for Solving the Problems] In order to solve the problems, the present invention provides an air tank disposed in an air chamber of a tubeless tire of a vehicle or the like at an appropriate position on a rim and fixed to the rim. The air filled in the air tank from the air valve is filled at a predetermined pressure into the tire air chamber via a pressure regulating valve provided between the tire air chamber and the air tank.

[Operation] When the vehicle tire of the present invention is to be initially filled with air, air is injected into the air tank from the air filling valve. The air injected into the air tank passes through the pressure regulating valve and fills the tire air chamber. When the air filled in the tire air chamber reaches a predetermined pressure, the pressure regulating valve is closed, and the air filling of the tire air chamber is stopped, and thereafter, the air tank is filled with the required pressure air. Therefore, the air tank is maintained at a higher pressure than the tire air chamber. Further, the tire air chamber is maintained at a predetermined pressure.

[0008] When the pressure in the tire air chamber decreases after the start of use of the tire, the pressure regulating valve is opened, air is supplied from the air tank to the tire air chamber, and the tire air chamber is restored to a predetermined pressure.

[0009] Usually, when the tire check performs a pressure check on the mouth portion of the air filling valve, if air tank <br/> is held to the required pressure, set lower than the pressure of the air tank The pressure in the tire air chamber is maintained at a predetermined pressure.

At the time of inspection, if the pressure in the air tank has decreased, it is presumed that the pressure in the air tank has decreased as a result of refilling the tire air chamber with air from the air tank. The maintenance is enabled by injecting air until the required pressure is reached.

An embodiment of a vehicle tire according to the present invention will be described below with reference to the accompanying drawings. 1 is a cross-sectional view of a tire, FIG. 2 is a perspective view of a wheel rim, and FIG. 3 is an elevational view of a wheel rim. Install an air tank.

The air tank A forms an arc approximately half the circumference of the rim recess 1 and has one substantially C-shaped air tank 2 sealing both ends and the other substantially inverted C-shaped air tank 3. It is formed. Reference symbol B in the figure indicates a wheel rim. One end of each of the air tanks 2 and 3 is connected by a hinge 4 or the like, and the other end of each of the air tanks 2 and 3 is mutually fastened by a fastener 5 or the like. Attach to 1. The air tanks 2 and 3 may be fixed to the rim recess 1 by welding, screwing, or the like. Reference numeral 9 in FIG.
Indicates a tire rubber, and 10 indicates a tire contact surface.

An air filling valve 6 is fixed to the rim recess 1, and the air filling valve 6 is connected to the respective air tanks 2 and 3.

A pressure regulating valve 8 is provided between the air tanks 2 and 3 and the tire air chamber 7, and when the air pressure in the tire air chamber 7 drops below a predetermined pressure, the pressure control valve 8 is opened. The tire air chamber 7 can be refilled with air via the pressure regulating valve 8.

In order to maintain convenience and wheel balance when mounting the air tanks 2 and 3 in the rim recess 1 and to cope with an emergency failure of the air tank, the pressure regulating valve, the air filling valve, etc., a plurality of An air tank may be used. In this case, an independent air filling valve and pressure regulating valve may be provided for each air tank.

In the above embodiment, the air tank 2,
The pressure 3 is filled with air at a pressure higher than the predetermined pressure in the tire air chamber 7. The pressure regulating valve 8 adjusts so that air is injected from the air tanks 2 and 3 into the tire air chamber 7 only when the pressure in the tire air chamber 7 decreases below a predetermined pressure.

In the embodiment of the present invention, the radius from the axle to the outermost side (outer diameter) of the air tank is set to be larger than the maximum radius of the rim and smaller than the radius of the tire rubber to the contact surface. As a result, the air tank exerts an effect as an auxiliary wheel, and corrects a sharp decrease in the radius of the wheel, which can contribute to safety for a short time until the vehicle stops.

[Effect of the Invention] As described above, according to the vehicle tire of the present invention, ordinary slight pressure reduction in the tire air chamber can be corrected to a predetermined pressure by replenishing air from the air tank. If the pressure in the tire air chamber suddenly drops during traveling, the entire air capacity in the air tank is continuously led out to the tire air chamber. For this reason,
It is possible to temporarily reduce the impact when a burst or the like is encountered. Even in the event of such an emergency, as described above, the air tank has the effect of assisting wheels and compensates for a sharp decrease in the contact radius of the wheels. Time can ensure safety. Therefore, it is useful because it can immediately respond to a sudden change in the contact radius of the tire due to wheel balance, puncture, etc., simplify maintenance and ensure the safety of vehicle operation.

[0019]

[Brief description of the drawings]

FIG. 1 is a sectional view of a tire.

FIG. 2 is a perspective view of a wheel.

FIG. 3 is an elevation view of a wheel.

[Explanation of symbols]

 A Air tank B Wheel rim 1 Rim recess 2 Air tank 3 Air tank 4 Hinge 5 Fastener 6 Air filling valve 7 Tire air chamber 8 Pressure regulating valve

Claims (2)

(57) [Claims] An air tank is disposed on a rim in an air chamber of a tubeless tire of a vehicle or the like, and air filled in the air tank from an air filling valve fixed to the rim is supplied to the air chamber between the tire air chamber and the air tank. In a vehicle tire that fills a tire air chamber with a predetermined pressure via a pressure regulating valve provided therebetween, an air tank A forms an arc approximately half the circumference of the rim recess 1 and seals both ends. And a substantially inverted C-shaped air tank 3 of the other type,
A vehicle tire, which is mounted in the rim recess 1. 2. One end of each of the air tanks 2 and 3 is connected by a hinge 4 and the other end of each of the air tanks 2 and 3 is mutually fastened by a fastener 5. The vehicle tire according to claim 1, wherein the vehicle tire is mounted in the rim recess 1.