| 摘要 |
A safety switch may be mountable proximate to the floor and may include a switch that may be actuated by vertical movement of a generally horizontally-extending switch operator plate as by pivoting about a horizontal axis at one side thereof. The safety switch may further include a blocking arm pivotable about a horizontal axis, the axis being perpendicular to the pivotal axis of the switch operator plate, wherein the blocking arm is normally biased into a vertical blocking position to prevent vertical movement of the switch operator plate. The switch may be actuated by the switch operator plate by pivoting the blocking arm into a vertical orientation and then moving the switch operator plate vertically into actuating contact with the switch. |
