Scaling device for an elevator car

Details Scaling device for an elevator car Scaling device for an elevator car

1975-12-03

1978-03-14

Miller, Jr., George H.

Weighing scales

With alarm or signal

177147, 177132, G01G 2318, G01G 1914, G01G 1952

Patent

active

040786234

ABSTRACT:
A scaling device for weighing load applied on an elevator car floor to prevent overloading operated by detecting the amount of deformation of rubber insulators mounted under the car floor.
Load detecting beams are provided under the car floor to detect the deformation of the rubber insulators, and each end of the load detecting beams is loosely jointed to an opposite side of the car floor.
When the rubber insulators deform by the load applied on the floor, the load detecting means subside in conformity to the deformation of the rubber insulators and a load detecting switch mounted below the car floor is switched on by the subsidence of the load detecting beams as the load exceeds the rated load, thereby to stop the operation of the car.

REFERENCES:
patent: 823455 (1906-06-01), Willcox
patent: 1061514 (1913-05-01), Anderson
patent: 1284960 (1918-11-01), Albert
patent: 3559204 (1971-01-01), Dashper

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