Importance

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Abstract

Hall call apparatus for a low-cost, low rise simplex elevator, all disposed on the hoistway doors, include a slider 25 which is released by depression of a hall call button 21 so that it is pulled upwardly by a spring 49 until it engages a stop 50. A clapper 33 overtravels when the slider stops and contacts a bell 34 to provide an audible indication that a call is registered. Holes 23, 24 in the hoistway doors form a chevron-like pattern through which colored chevron-like stripes 28 on the slider will show, to provide a visual, directional indication of the registration of the call. A passive transmitter disposed on the slider passes through flux of a permanent magnet 30 to cause a unique RF signal transmission from an antenna 31 that is picked up by an antenna 71 on the elevator car to indicate the floor and direction of the requested hall call, which may simply be applied to the car operating panel to force a car call in order to answer the request for service at a given floor. The slider is rest downwardly by a stationary reset arm when the doors are fully opened, and held in a downward position by a latch 43 until subsequently being released by pushing the hall call button 21. Instead of RF signals, each bell 34 may have a different tone sensed by a microphone to distinguish the different floors and directions of hall calls requested. Flags 36, 37 may be sensed, when the slider is in the call registering position, by sensors 60, 61 disposed on the elevator car as a backup method of determining the presence of hall calls.

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First Claim