Elevator – industrial lift truck – or stationary lift for vehicle – Having specific force transmitting connection for...
Patent
1997-12-11
1999-09-14
Terrell, William E.
Elevator, industrial lift truck, or stationary lift for vehicle
Having specific force transmitting connection for...
187410, 187409, B66B 708
Patent
active
059507713
ABSTRACT:
An elevator system includes an elevator car with a plurality of roller guide assemblies attached thereto. The roller guide assemblies guide the elevator car vertically within a hoistway along a plurality of guide rails. Each roller guide assembly includes a friction damping subassembly to minimize vibration and lateral movement of the elevator car. The friction damping subassembly includes a grounding bar and a friction damper attaching onto a shaft of each roller in the roller guide assembly. The friction damping subassembly dissipates energy and improves the ride quality of the elevator car.
REFERENCES:
patent: 2100169 (1937-11-01), Norton
patent: 3099334 (1963-07-01), Tucker, Jr.
patent: 3856117 (1974-12-01), Solymos
PCT Search Report for Serial No. PCT/US98/12163 dated Aug. 13, 1998.
Ferrisi John J.
Hasegawa Akihiro
Rivera James A.
Swaybill Bruce P.
Otis Elevator Company
Terrell William E.
Tran Khoi H.
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