| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pipe joint with valve, with reduced pressure loss and reduced manufacturing cost and having sufficient strength. <P>SOLUTION: A valve 30 having a head part 31 and a shaft part 32, a valve support A fixed to the pipe bodies 11, 21 and supporting the shaft part 32 to be axially movable, and an urging member 8 of the head part 31 are provided in flow passages L1, L2 of pipe bodies 11, 21. When the pipe bodies are not fitted, the head parts 31 are urged to be abutted with reduced diameter parts 12, 22 and block the flow passages L1, L2. When the pipe bodies are fitted, the head parts 31 are pressed against each other to separate the head parts 31 from the reduced diameter parts 12, 22 to allow connection between the flow passages L1, L2. The valve support A has a shaft passing part A1 drawing a circular arc along a circumferential face of the shaft part 32 and surrounding the shaft part 32, a crossover part A2 extended from one end part A1a of the shaft passing part A1 to an inner peripheral face 11a, and a base part A3 drawing a circular arc from its tip part A2a along the inner peripheral face 11a. The shaft passing part A1, crossover part A2, and base part A3 are in the form of plates of which the walls in a cross-sectional direction of the flow passage L1 are thin. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
