| 摘要 |
<p>A push-rotation type key-switch including essentially a lock main body (1) having a member or cylinder (4) adapted to be moved by the insertion of a key (6) and a switch (2) fitted at the rear end of the lock main body (1). In order to render more difficult any unauthorized operation of the switch (2) using picking means, the rotatable member or cylinder (4) is prevented from sliding in the axial direction and a switch operating cam (3) is caused to slide backward in the axial direction of the rotatable member or cylinder (4) when the key (6) is inserted into the rotatable member or cylinder (4), the switch operating cam (3) being adapted to be rotated integrally with the member or cylinder (4) in either direction to turn on and off the switch (2).</p> |
