| 摘要 |
PURPOSE:To provide a positive and smooth switching operation of a switch by pressing a coil spring with an engaging piece moved by a key to open and close the switch with a pin advancing and retreating in the operation of the spring. CONSTITUTION:When a key 2 is inserted into or withdrawn from a cylinder lock C, an engaging piece 7 is moved radially outward or inward of the cylinder lock C by the side 2' of the key 2. A coil spring 6 is moved by the movement of this engaging piece 7 and a pin 15 is moved by the other end 6b of the coil spring 6. And upon the movement of the pin 15, a movable piece 13 contacts either of fixed contact 16, 16' to open or close a switch B. |
