| 摘要 |
<p>A safety switch assembly for correlating the opening and closing of a door with the on-off control of a power source. An object of the present invention is to provide a miniaturized highly-reliable safety switch assembly which is not operated by a mischievous act. In the safety switch assembly, actuators (2) to be attached to a door each have a free end with a recess, and a switch body (1) is provided with a plurality of rotary cam plates (13, 14a, 14b) so that the cam plates are opposed to this recess and can be turned independently of one another. When the pressure-receiving surfaces (17, 22) of the rotary cam plates (13, 14a, 14b) are on standby, they are engaged with the recesses referred to above. One common cam follower pin (29) is passed through these rotary cam plates, so that the cam follower pin is not moved by inserting an object that has a recess different in shape from that in the actuator.</p> |
