| 摘要 |
A pipe end coupling device has a portion with anchor washer (15) for anchoring in a bore (4). The portion can be driven in the insertion direction into the bore from an position in which the washer is in its anchor state to a position in which the washer co-operates with an abutment (16) that is stationary relative to the bore in the insertion direction, bringing the washer into its free passage state. |
