JPH11157315A - Automatic tire air pressure adjusting wheel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent accident in high-speed running caused by shortage of the air pressure in a vehicle tire by automatically adjusting the requisite air pressure to a proper value in accordance with the current running speed. SOLUTION: In recent years, a vehicle tire is of tubeless type chiefly, so that a high pressure air is obtained easily by installing an air pump S in the wheel A and utilizing the vehicle weight to the power for the pump S. For example, five pumps of 0.2-cc capacity per piece are installed on each wheel, and when the wheel is rotated one turn, an air quantity of 1 cc can be fed to the tire upon being compressed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle wheel such as aluminum or steel used for automobiles and motorcycles.

[0002]

[0002] Tires used in automobiles and motorcycles must maintain an air pressure suitable for the running conditions required by the tires. Due to differences in road temperature, differences in air temperature, differences in barometric pressure due to altitude, and tire pressure in various environments, it was impossible to maintain the ideal tread surface. Since it was impossible to adjust the air pressure while driving with the conventional wheels, it was difficult to properly use the air pressure at low speeds and at high speeds.

[0003] The present invention has been made aware of such problems of existing vehicle wheels mounted on tubeless tires and always self-manages an appropriate air pressure independently of the external environment. A vehicle wheel with an air pump that keeps the ideal tread tread.

[0004]

In order to solve the above-mentioned problems, in the present invention, an air pump is mounted on a disk portion of a wheel, and air is pushed into the tire by the weight of a vehicle. Adjacent air pumps push air into the tires one after another by the rotation of the wheels due to the movement of the vehicle. When the tire internal pressure exceeds the set pressure value, the air release valve opens to release excess air. The air release valve varies the set pressure value according to the speed of the vehicle using the centrifugal force generated by the rotation of the wheel.

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is an elevational view showing a tire mounted on a tire pressure adjusting wheel, FIG. 2 is a perspective view showing the appearance of the tire pressure adjusting wheel, and FIG. FIG. FIG. 4 is an embodiment in which a tire is mounted on a tire pressure automatic adjustment wheel.

1, an air pump D molded of rubber or a rubber-like elastic substance is inserted between a portion B of a wheel disc A for a vehicle and a ring C, and the same applies to portions E, F, G and H of the disc A. Insert the air pump.

FIGS. 2 and 2 denote a valve for preventing backflow of air in the tire, and K denotes an air release valve for setting the air pressure in the tire.

In FIG. 3, the ring C is connected to the ground L via the tire I.
Is in contact with B of wheel disk A located at the top
When the part is rotated by the movement of the vehicle and comes close to the position of the ground L, that is, right below, the weight of the vehicle starts to crush the air pump D between the ring C and the air pump D. First, the intake valve R portion of the cavity P is closed, and then the air sucked into the cavity P from the air intake pit N is compressed, the push-back valve J is pushed open and moved into the tire, and at the same time, the wheel moved upward. The G part of the disk A pulls the pump S, and the cavity U inside
And inhale air from the intake pit M. The air intake of the intake pit is provided near the center of the wheel.

In FIG. 1, when the wheel further rotates and the portion E of the wheel disk A approaches the ground, the air pump T is crushed, and the air in the cavity passes through the check valve and enters the tire. The same operation is repeated one after another, and when the air pressure in the tire exceeds the set value, the air release valve K opens to release the air in the tire, and the pressure set by the air release valve K is maintained. The reference pressure can be arbitrarily set by adjusting the air release valve K.

When the speed of the vehicle is increased, the rotation of the wheel is accelerated, and a centrifugal force acts on the air discharge valve K, so that the air discharge valve K changes the set pressure value.

[0011]

The present invention has the following effects.

Since the required air pressure of the vehicle tire is automatically adjusted to an appropriate air pressure according to the traveling speed, it is effective for preventing accidents at high speed due to insufficient tire air pressure, especially for motorcycles.

[0013] A maintenance-free tire has been realized in which the tire pressure during running is always maintained properly even when the temperature changes due to seasonal changes.

[0014] Even if a small amount of air leaks due to a nail or the like piercing the tubeless tire during running, safety is improved by automatic air replenishment while continuing to run.

[0015] The vehicle can always run at an appropriate air pressure to prevent the wear of the tire by knitting and prolong the life of the tire.

[Brief description of the drawings]

FIG. 1 is an elevational view of a state in which a tire is mounted on a tire pressure automatic adjustment wheel.

FIG. 2 is a side sectional view showing a state in which a tire is mounted on a tire pressure automatic adjustment wheel.

FIG. 3 is an external perspective view of a tire pressure automatic adjustment wheel.

FIG. 4 is an embodiment in which a tire is mounted on a tire pressure automatic adjustment wheel.

[Explanation of symbols]

 A Wheel disc B Part of the wheel disc that connects to the pump C Wheel ring D Air pump E Part of the wheel disc that connects to the air pump F Part of the wheel disc that connects to the air pump G Part of the wheel disc H Part connected to the air pump in part of the wheel disk I Tire J Backflow prevention valve K Air release valve L Ground M Air intake pit N Air intake pit O Intake valve P Air pump air chamber, cavity R Intake Valve S Air pump T Air pump U Air pump air chamber, cavity X Thickness when air pump comes to upper part of wheel Y Thickness when air pump is crushed at lower part of wheel

Claims (1)

[Claims] 1. A vehicle wheel with an air pump.