| 摘要 |
The release mechanism has two half plates (1,2) which are mainly parallel. One half plate (1) is stiffened by a screw (14) which cooperates with the end of the other half plate (2). The flat parts (9, 10) of the first plate has three circular holes for the screw, a bolt (4) joining the plates and a release bolt (3). The release bolt has a compression spring (8) round its axles (6). It is moved between a locked position, through both plates, and a released position in which it is only through the first part. It is held by a hook on its lower end.
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