H - Electricity – 01 – H
Patent
H - Electricity
01
H
340/124
H01H 35/00 (2006.01) B66B 13/28 (2006.01)
Patent
CA 1040283
ABSTRACT OF THE DISCLOSURE A safety switch device, particularly for use at a door for a vertically moving conveyor, is provided with a switch plate section immediately adjacent the door for stopping the conveyor upon supporting an operator or the like, is provided with mirror image hinged plate middle sections that will stop the conveyor when engaged by the wheels of a forklift truck, and outer hinged switch plate mirror image sections that will recycle the control circuit so that the conveyor will only start after the sequence of the forklift truck rolling off of the middle switch plate sections and onto the outer recycling switch plate sections to prevent accidental starting of the conveyor if the forklift truck bounces upwardly, pivots upon receiving a load, or otherwise momentarily removes its weight from the middle switch plate section. Each of the switch plate sections is mounted for either pivoting or vertical reciprocating movement from an upward normal position where it is supported on springs to a lower position where it is supported on stationary spacers with the springs compressed, so that such move- ment will operate suitable micro switches that are mounted for vertical adjustment.
211895
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