| 摘要 |
<p>A safety switch assembly for fitting to a safety enclosure. The switch comprises a rotatable cam which operates electrical contacts. An actuator is insertable into the switch housing through either of two apertures to engage locking members. The locking members move in a rectilinear direction perpendicular to the cam axis away from the actuator and out of locking engagement with the cam. Ears on the actuator then engage in pockets in the cam and rotate the cam which causes movement of the electrical contacts to the ON position. Each locking member comprises a pair of locking components one of which is slidable on the other and both of which define elongate slots through which a cam shaft extends. The slots are inclined such that when the actuator pushes either one of the components away from a first aperture the other component is forced to move away from the other aperture.</p> |
