| 摘要 |
The plate (3,4,5) is supported by a connection component (6) partially enclosed in the column (2), and pivotable around an attached connecting pin (7). The connection component is also firmly connected to a lock pin, which can be pushed into a securing position when the plate is loaded, with the aid of a spring component (14-17). - The lock pin is moved out of the secured position when a force is applied to the plate upwards and directed from the column. The column comprises a tubular profile partially open on one side and which in a straight line along it has a series of fixed stop components which the lock pin can bring to secure engagement. |
