| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology for preventing unintended separation of a tube and a joint in a single action joint used for the connection of the tube and the joint.SOLUTION: The joint includes a joint body having a recessed insertion part, in which the tube is inserted at one end, and a connection part which is coupled with piping at the other end. The joint includes a locking member, which is inserted and fitted in the recessed insertion part to lock an inserted tube, and a release member 18, one end of which protrudes from the recessed insertion part and the other end of which is inserted and fitted in the recessed insertion part and which releases the locked state of the tube by being pushed into the recessed insertion part at a release position. The joint also includes: notches 14 ranging from a lock position up to the release position on the inner circumference of the inlet side end of the recessed insertion part; projecting parts 19 engageable with the notches on the outer circumference near the projecting side ends of the release member; springs 20 fixed at the release position side of the projecting parts; and deep grooves 14D, in which the projecting parts and contracted springs can be inserted and fitted when the notches are at the release position. |
