| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe joint which is simple in structure, manufactured at low cost, easy in connection to a pipe to be connected, and capable of obtaining a large locking force. SOLUTION: The pipe joint comprises a joint body 1 having a tapered cylindrical part 4 in which an outer circumferential surface 6 is expanded from an opening end 10 side and a male screw cylindrical part 5 continuous to the tapered cylindrical part 4 and a pipe P to be connected is inserted, a pipe locking small disk continuous body 2 which is held in a plurality of small window parts formed at a plurality of parts in the circumferential direction of the tapered cylindrical part 4 in a non-connection state with a part thereof protruded from the outer circumferential surface 6, and a tightening cap 3 having a female screw cylindrical part 8 to be screwed to the male screw cylindrical part 5. The tightening cap 3 has a tapered inner circumferential surface 9 to press the small disk continuous body 2 against the pipe P in a biting manner, and the tapered inner circumferential surface 9 is abutted on the small disk continuous body 2 as the female screw cylindrical part 8 is screwed into the male screw cylindrical part 5. COPYRIGHT: (C)2005,JPO&NCIPI
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