| 摘要 |
<p>A combination lock of the type having a hollow base (11) containing a central plunger (12) guided for both rotational and slidable movement therein, the base (11) having a plurality of base notches (26) selectively engageable by lock plungers (31) carried by the central plunger (12) for axial movement, each lock plunger (31) having a portion capable of being contained within a respective notch (26) to thereby inhibit rotation, each lock plunger (31) also having a notch (33) arranged, when correctly positioned, to permit rotation of the central plunger (12), and a selection knob (42) which is rotational and slidable with respect to the central plunger (12) and which has a push pin (43) operable to depress selected ones of the lock plungers (31), the central knob (42) obscuring the lock plungers (31) such that it is not apparent which of the lock plungers are the selected ones for a combination.</p> |
