| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To simplify the shape of a sleeve and fix a partition wall collar to a cylinder body by a few components in a master cylinder slidably fitting a plunger to the sleeve fitted and fixed to the cylinder body, formed with an annular compensation chamber always connected to a reserve tank inside and connected to an output hydraulic chamber in a retreating limit position of the plunger in a part between the partition wall collar surrounding the plunger and the plunger, and having a pair of cup seals slidably contacting with the outer circumference of the plunger in the both sides of the partition wall collar. <P>SOLUTION: The cylinder body 11 is provided with a fitting hole 12 for fitting the sleeve 20 and a sliding hole 14 forming an annular step part 17 in a space toward the fitting hole 12. The cylinder body 11 is formed with a lock part 36 between the cup seal 26 to be installed inside the sliding hole 14 and the step part 17, and the partition wall collar 18 abutting on the step part 17 is integrally provided with an engagement claw 34 elastically engaged with the lock part 36. <P>COPYRIGHT: (C)2003,JPO</p> |
