| 摘要 |
The combination lock may have several dials, each coupled to a corresponding rotary element having a periphery that is circular except for a peripheral portion that must be turned to a preditermined position w.r.t. a sliding bolt to permit the lock to be opened. Each peripheral portion has a notch and the bolt has a ridge portion for each noty, with the ridge portions mating with the notches, respectively, when the noches have the predetermined position. The combination lock may have the bolt altermatively moved by dialdriven cams between an unlocked position and a locked position. |
