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US 5,821,479 AGranted
Elevator push-button device
AssigneeOtis Elevator Company
InventorsAtsunori Kondo, Kazuhiro Hattori
Life of this patent
Estimating the term…
Abstract
A push-button device for an elevator is equipped with the function of both a hall button and a hall position indicator, and furthermore, the function of a destination floor button.
Claims2
A push-button device for each floor served by an elevator, characterized in that the device includes:
- push-buttons provided with numbers corresponding to floors at each boarding location, each of the buttons being configured such that when pushed, along with generating a boarding call, indicates the destination floor;
- a light-emitting means for producing a first and second color in each push-button;
- a car position detection means for detecting the floor on which the car is currently positioned;
- and a control means made such that, when a signal from one of the above-mentioned push-buttons is input, it causes the first color in the light-emitting element of the push-button to be produced, and produces the second color in the light-emitting element of the push-button corresponding to the floor on which the car is currently positioned, based on the signal from the above-mentioned car position detection means.
1 more element
An elevator system for serving a plurality of floors of a building, comprising:
- an elevator car;
- and
- car floor position detecting means for providing a floor position signal indicative of the floor position of said car;
- characterized by the improvement comprising:
- said system having on each floor of said building, a plurality of push buttons, one for each floor of said building, each having a number identifying the corresponding floor, each button, when pushed, generating a boarding call for service to the corresponding floor, each button having light emitting means for emitting light of a first color in response to a corresponding boarding call to indicate the destination floor of the call, and for emitting light of a second color in response to said floor position signal indicating the corresponding floor, to indicate the current floor position of said car.
2 more elements
Dependencies are inferred from the claim text.