| 摘要 |
Locking device (26) holds upper movable part (13) of forceps in first (33), spring loaded and initial positions. In second position, upper part is partly raised round axis of releasable joint connection (41) between upper part and operating grip (19). Thus in first phase (13) transferring from initial to second position comes (13) free of guide and in second phase joint (41) is released. Joint (41) has U-shaped receiver slot for grip (19) and pin of movable part (13). Top open end of receiver is restricted by yielding detent (73) with ball etc held sprung in above to form narrowed part of receiver. Detent force is adjusted by threaded pin in ball bore and sprung adjustably onto ball. |
