| 摘要 |
The invention relates to a device for locking end positions of mobile point elements, especially a point closing element, said device comprising at least two parts that can be moved in relation to each other, are guided inside each other, and can be displaced into a non-positively or positively coupled position, in at least one direction of displacement. According to the invention, said mobile parts are formed by an inner tube (14) and an outer tube (13) surrounding the inner tube (14), said tubes encompassing a fixed rod (5). |
