| 摘要 |
PURPOSE:To facilitate connection through antislip structure even when a pipe is of a soft quality by grasping a pipe insertion port by means of an expanding collar to expand and fastening with a pressure the pipe insertion port from the inner surface side and a coupling body socket and causing the antislip blade for a socket to deeply cut through the pipe insertion port. CONSTITUTION:A core 3 is fixed in a socket 2 of a pipe coupling body 1. An expanding part 30 having a tapered surface 31, the outside diameter of which is increased toward the inlet side of the socket 2, is located on the tip side of the core 3. The expandable part of a collar 5 the tip side of which is expandable is covered in an expanding state with the expanding part 30 of the core 5, and the intermediate part of the core 3 has an outside diameter enough for escape of the collar 5 in a non-expanding state. The pipe insertion port P is grasped between the collar 5 in an expanding state and the socket 2 and the pipe insertion port P is locked to an antislip blade 6 on the collar 5 side or the socket side. The antislip blade 6 is caused to deeply cut through the pipe insertion port P by means of an expanding force exerted from the inner side. This constitution performs connection of a pipe through an antislip mechanism even when the pipe is a soft pipe. |
