| 摘要 |
PROBLEM TO BE SOLVED: To perform insertion and attachment of a pressing cylinder to a hose and assembly to a connection cylindrical body in separate processes by separating them from each other. SOLUTION: An enlarged diameter part 2a whose outside diameter is enlarged toward the direction of hose insertion and which is larger than the most inside diameter of the connection cylindrical body 3 is formed on an outer face of the pressing cylinder 2, and a space part 2b for shortening diameter is provided in the enlarged diameter part 2a. By merely inserting a hose connection end part H1 and the pressing cylinder 2 into the connection cylindrical body 3, the enlarged diameter part 2a is abutted on an inner peripheral face 3a of the connection cylindrical body 3 to shorten diameter elastically and moves along the inner peripheral face 3a as it is. When it reaches an annular recessed part 3b, diameter of the enlarged diameter part 2a is elastically enlarged to abut on and engage with the annular recessed part 3b so as to rotate freely in the direction of hose axis. COPYRIGHT: (C)2006,JPO&NCIPI
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