| 摘要 |
PROBLEM TO BE SOLVED: To connect elbow pipes in a compact space without the usage of a joint pipe, and to prevent bad influence on a bag nut by welding. SOLUTION: This pipe joint is provided with a first elbow pipe 10 having an annular protrusion 13 with a large diameter on an end part side; a second elbow pipe 20 having a male screw 23 on an end outer periphery and an inner periphery to which an end part of the first elbow pipe 10 is inserted, and O ring 40 adhered to an outer peripheral surface of the annular protrusion 13 on its inner peripheral surface; and a bag nut 30 having one opening 33 to which the first elbow pipe 10 is inserted with an inside diameter larger than an outside diameter of the annular protrusion 13, the other opening 31 to which the second elbow pipe 20 is inserted with an inside diameter larger than an outside diameter of the second elbow pipe 20, and a male screw 32 screwed with a male screw 23 of the second elbow pipe 20 on an inner peripheral part. COPYRIGHT: (C)2007,JPO&INPIT
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