Elevator system

Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support

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Details

B66B 130

Patent

active

045039399

ABSTRACT:
A speed switch for an elevator system which obtains its information from distance pulses generated in response to car travel. The reference speed setting of the switch is a function of the desired predetermined speed at which the switch is to operate, the number of distance pulses produced per inch of car travel, and the time required by a counter to count to a predetermined value. This arrangement facilitates the selection of the reference speed setting of the speed switch, such as by using a thumb switch. An emergency terminal stopping arrangement using the speed switch is also disclosed, as is a new and improved elevator system in which the normal slow-down speed pattern and emergency terminal stop functions are both resposive to distance pulses produced in response to car movement, enabling a terminal slow-down speed pattern to be initiated by circuitry independent of the distance pulses, such as via a notched terminal slow-down blade adjacent to each terminal floor.

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patent: 4456096 (1984-06-01), Kajiyama

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