| 摘要 |
The socket has an opening in which the end of the pole (3) is inserted. One or more protrusions (7) extend inwards in the sheath portion (6) of the socket, with their free ends (11) at an acute angle to the direction (5) in which the pole is inserted. These form spring portions deflecting towards the outside. The protrusion can be formed by a part of the sheath portion bent at an obtuse angle. One or more walls of the sheath portion can be metal, with the protrusion consisting of a stamped and bent lip. |
