| 摘要 |
The tenon (23) has two branches one of which when locked extends above a pivot (14) in the direction of the cavity bottom and the other under the upper branch. The upper branch and pivot comprise a recess (234) and a lug (141) housed in the recess when in the locked position prevents translation of the cover separating the tenon from the cavity bottom. The locking system comprises a frame (1) and a hinged cover (2) with a cavity (13) in the frame wall. A tenon (23) carried by an edge of the cover extends into the cavity. |
