Inventio Ag

Hans G Suss

Stephan Zeindler

Jiri Kiml

A switching apparatus operatively associated with each elevator of an elevator group operated by means of a collective control and individual travel control serves the purpose, for instance in hospitals, of switching one or more elevators from one control mode to the other control mode. The switching apparatus comprises four series connected switching stages formed of digital logic or switching elements. By activating one of the key switches of the first switching stage there is initiated the switching operation to the relevant other operating mode, and there are generated signals which eliminate the elevator which is to be switched over from the storey call allocation. Upon arrival of an input information or signal which signals the operating state 'free' of the elevator which is to be switched over, there is accomplished allocation to the desired operating mode by freeing the correlated door control by means of output signals produced in the second switching stage. A timing element of the third switching stage, after expiration of a control time, prior to allocation at the desired operating mode, generates a signal interrupting the cabin call transmitter supply. After servicing the last call which is located in the momentary travel direction of the cabin, the fourth switching stage produces a signal which extinguishes the still stored cabin calls and a signal which blocks the door closing operation until emptying of the elevator cabin.

Switching apparatus for a group of elevators or the like

An apparatus for placing in order the servicing sequence of storey calls of an elevator system, comprising storage elements for storing the storey calls, storage transmitter means for controlling the storage elements, a scanner for scanning the storage elements, and a respective further storage element operatively associated with each storey being serviced. Each such further storage element has a first input connected with the related storage element serving to store a storey call and its output is connected by means of a logic circuit with a blocking device blocking infed and stored storey calls during a servicing period corresponding to at least one revolution of the scanner. A second input of each such further storage element is connected with the output of a release device freeing the blocked storey calls after completion of a servicing period in order to accomplish storey servicing during the following servicing period. A first input of the release device is connected with an output of the scanner delivering information at the start of a scanner revolution and its second input with the output of the blocking device and with a switching device controlling the scanner drive. Release of the stored storey calls and thus initiation of a new servicing period first is accomplished when there appears at the output of the blocking device information signaling the completion of the storey calls released during the preceding servicing period.

Apparatus for placing in order the servicing sequence of storey calls of

An apparatus for selecting a storey call at a transportation installation, especially an elevator system, which contains storey call storages and a scanning device which continuously scans the storey call storages and produces a signal sequence containing the stored storey calls, as well as possessing a selector which signals the location of the elevator cabin. Upon coincidence of the elevator cabin location and the scanner position there is produced a coincidence signal which, in conjunction with an information signal signalling the operating state of the elevator cabin, is delivered to a selector circuit. Both signals act by means of a first NOR-gate and a storage upon a second NOR-gate of the selector circuit. Storey call signals which have been selected from the signal sequence produced by the scanner device and ordered in accordance with the time sequence of their input are delivered to a further input of the second NOR-gate. If there simultaneously appear the information signal signalling the travel readiness of the elevator cabin and the coincidence signal, then at the output of the second NOR-gate there appears a control signal which, in the direction of travel of the scanner device, corresponds to the storey call situated closest to the coincidence signal.

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Udligenswil, Switzerland

Hans G Suss