| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reservoir structure suppressing the occurrence of liquid leakage or burrs and reduction in sealing force of a diaphragm. <P>SOLUTION: On the rear surface side of a piston 221, a plate 232, diaphragm 233 and a stopper 234 for fixing the diaphragm 233 are disposed. The diaphragm 233 is thus disposed on the rear surface side of the piston 221, and the fixing mechanism of the diaphragm 233 is configured by a holding force of the piston 221 and the stopper 234. A conventional fixing mechanism using snap fit or caulking is therefore eliminated. As a result, breakage of the fixing mechanism is suppressed, and a sealing failure at the diaphragm 233 caused by breakage of the fixing mechanism is suppressed. Thereby, reliability of a pressure regulation reservoir 20 is improved, and durability of the entire system is improved. <P>COPYRIGHT: (C)2012,JPO&INPIT |
