| 摘要 |
A lever lock has a thrower 17 with a barrel 22 journalled at each end 23 in the lock case. The barrel has a longitudinal passageway opening through a longitudinal slot to pass the key bit 29 and opening at each end at two opposed circumferential locations. The corresponding key 26 has a pin configured to enter the passageway and formed at each end with two opposed part-cylindrical bearing surfaces 31, 32. In use the bearing surfaces 31, 32 of the key are exposed through the respective openings in the ends 23 of the barrel to bear against the lock case and define the correct rotational position of the key irrespective of the fit of the barrel in the lock case. <IMAGE> |
