| 摘要 |
PURPOSE:To shorten the depth by inserting a lever retroactively into a U-shaped groove in the longitudinal direction of a driving cam, rocking the short side of an L-shaped shutter lever and lifting and lowering the pin of a shutter plate by the slot of a long side. CONSTITUTION:A U-shaped groove 4c in the longitudinal direction is formed to the driving cam 4 of a drawer type switch 1. A handle 3 in the front is turned, and a retractable lever 2 is inserted into a groove 4c by worm gears 3a, 3b. The inclined face 8a of an L-shaped shutter lever 8 rotatably supporting a short side to the pin 4d of the cam 4 is pushed down by the pin 2a of the lever 2, and the lever 8 is rocked in the clockwise direction. The long side of the lever 2 is also rocked, and a shutter 7 is lowered from a position shown in the figure through the pin 7a of the shutter 7 inserted into the slot 8b of an end section. When the handle 3 is rotated, the pin 2a is pushed against the front of the groove 4c, the switch 1 is moved forward by the reaction, disconnecting sections 10 and 6 are brought into contact, and the open state in the figure is transferred to the close state. |
