Elevator – industrial lift truck – or stationary lift for vehicle – Having specific means contacting or on load support for... – Includes movable contact component on support for engaging...
Patent
1993-07-30
1995-01-03
Noland, Kenneth W.
Elevator, industrial lift truck, or stationary lift for vehicle
Having specific means contacting or on load support for...
Includes movable contact component on support for engaging...
188181A, B66B 516
Patent
active
053777883
ABSTRACT:
A safety catch device for elevator cars guided on at least one guide rail includes a braking device acting on the at least one guide rail for braking the elevator car and a control device for controlling the braking force of the braking device in dependence on the load and/or deceleration. The control device includes a control mass which is influenced by the acceleration of the elevator car and a brake spring which is deflected in accordance with the position of the control mass. The brake spring is coupled to the control mass and the braking device in such a way that a reduced braking force is applied by the braking device on the at least one guide rail in the case of a high deceleration of the elevator car and an increased braking force is applied by the braking device on the at least one guide rail in the case of a lower deceleration of the elevator car.
REFERENCES:
patent: 4377221 (1983-03-01), Farr
Barth Wolfgang
Biewald Joachim
Fenkl Karl
Holler Helge
Hugel Stefan
C. Haushahn GmbH & Co.
Kueffner Friedrich
Noland Kenneth W.
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