| 摘要 |
A hinged mechanism has a spring element as a reserve force in the form of a flat coiled spring (12) and a releasing element in the form of a safety lever (14) as well as first (16), second (18), third (20) and fourth (22) levers along with first (24), second, third (28), fourth (30), fifth (32), sixth (34) and seventh (36) ball-and-socket joints.
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