| 摘要 |
<p>PURPOSE:To prevent close adhesion of a bladder to internal surfaces of a vessel main unit and perform stable operation throughout a long period, by forming many recessed parts to a surface of the bladder dividing the inside of the vessel main unit into two chambers and holding liquid in said recessed parts when the bladder is expanded. CONSTITUTION:In case of using an accumulator as the shock absorber, if gas of pressure meeting to set pressure in a hydraulic system is fed into a bladder 5 from an air supply member 4, the bladder 5 consisting of an elastic member of rubber or the like is expanded and forcibly contacted to internal surfaces of a vessel main unit 1. Under this condition, if liquid of pressure higher than pressure of said gas is introduced from a liquid inlet and outlet port 2, the bladder 5 is contracted and its operating part is separated from the unit 1 to accept the liquid into a space formed between the bladder and the unit 1. Here many recessed parts 8 formed by protrusive stripes 9 are provided on a surface of the bladder 5, then the liquid can be held in the part 8 to prevent close adhesion of the bladder 5 to the internal surface of the unit 1.</p> |
