| 摘要 |
<p>PROBLEM TO BE SOLVED: To eliminate a flare nut and a thread tightening work for the flare nut in connecting fluid pipes, and to secure sufficient sealing performance while surely carrying out a connecting work by easy operation. SOLUTION: A pipe connecting hole 13 and a fluid flowing hole 14 are adjacently arranged to a cylinder body 3 of a hydraulic master cylinder 1. A pin hole 21 parallel to a radial line of the pipe connecting hole 13 is formed in a boss portion 3b to expose a part of it to the hole 13. Two flanges 15c, 15d storable in the pipe connecting hole 13 are integrally formed along a periphery of one end portion 15a of a fluid pipe 15. One end portion 15a of the fluid pipe 15 is inserted into the pipe connecting hole 13 to locate the pin hole 21 between the flanges 15c, 15d, and a tip 15b of the one end portion 15a is inserted into the fluid flowing hole 14. A seal ring 22 is interposed between the bottom of the pipe connecting hole 13 and the flange 15c in its tip side. A stopper pin 24 is pushed in the pin hole 21 to prevent coming-off of the fluid pipe 15 freely turnably.</p> |
