| 摘要 |
PROBLEM TO BE SOLVED: To prevent looseness of a threaded member due to twist of hose. SOLUTION: A gas filling coupling 22 includes a first grip part 30 having an end part of a gas filling hose 16 and a pressure releasing hose 18 inserted therein, a hose retention part 32 connected to the first grip part 30, a second grip part 34 connected to the hose retention part 32, a switching valve 36 provided as one body with the second grip part 34, and a coupling part 38 communicated to delivery port of the switching valve 36. The retention member 40 is formed out of, for example rubber material or the like having elasticity, and is compressed in an axial direction by screwing in the first grip part 30 and is elastically deformed to grip outer circumferences of the gas filling hose 16 and the pressure releasing hose 18. Even if the gas filling hose 16 and the pressure releasing hose 18 are twisted, force loosening the threaded members 42, 44 is not transmitted and connection strength of the gas filling hose 16 and the pressure releasing hose 18 can be secured. COPYRIGHT: (C)2005,JPO&NCIPI
|
