B - Operations – Transporting – 66 – B
Patent
B - Operations, Transporting
66
B
B66B 13/28 (2006.01) B66B 5/00 (2006.01) B66B 5/28 (2006.01)
Patent
CA 2166841
Equipment for the protection of persons against the danger of being crushed by the ingress of a transport equipment into a temporary working space such as for example a shaft pit 3 of a lift. Shaft pits 3 of reduced depth display swivel buffers 8, which before entering the shaft pit 3 are pivoted into the travel range of a cage 1. After leaving the shaft pit 3 and during each travel, the swivel buffers 8 are retracted and pivoted out again by their own weight on each stop of the lift. These movements are registered by means of safety switches 13 and the functional capability of the equipment is checked continuously in this manner. By means of the unlatching and release equipment arranged in the shaft door front, a memory circuit is actuated in addition, the resetting of which must take place by a key switch in the machine room.
Ag Inventio
Riches Mckenzie & Herbert Llp
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