To solve such the problem that it is difficult to use an air bag device for a vehicle repeatedly many times when applying the air bag device to other usages and, further in a shock absorber in which the spring or oil pressure is applied, there is a defect of causing rebound due to slow speed and accumulated energy although it can cope with large force.
The shock absorber device includes: an air cylinder in which high-pressure air is filled; a pressure sensor and the filling port of the high-pressure air disposed on the rear part of the air cylinder; and an outer cylinder with an exhaust valve formed on the rear part of the outer side, wherein the exhaust valve is opened and closed by operating the air cylinder forward and backward in the oil pressure chamber disposed in the outer cylinder, the high-pressure air in the air cylinder is discharged to the outside through the inner part of the exhaust valve from an exhaust port opened on the side surface of the exhaust valve, and large force is controlled at high speed.
TERADATE MASAMITSU
ENOMOTO YASUYUKI