Cart wheel control for hoistway car

Details Cart wheel control for hoistway car Cart wheel control for hoistway car

1986-09-18

1988-11-29

Werner, Frank E.

Material or article handling

Apparatus particularly adapted for charging or discharging a...

With means to transfer, or facilitate transfer of, vehicle...

414280, 414609, 1041722, 104 35, 104 42, B65G 104

Patent

active

047878029

ABSTRACT:
A hoistway car for transporting wheeled carts between floor levels which includes means for reversing the cart swivel wheels to facilitate off-loading of the cart while avoiding chafing or jamming of such swivel wheels. In the illustrated embodiments, the reversing means comprises turntables at the plane of the car platform which turn in predetermined directions to control wheel swivel action. In one embodiment, the turntables rely on gravitational forces to initiate swivel action, and in another embodiment, the turntables are power-operated for inducing swivel action.

REFERENCES:
patent: 1084026 (1914-04-01), Simmonds
patent: 1768360 (1930-06-01), Jenney
patent: 3077164 (1963-02-01), Da Roza et al.
patent: 3516367 (1970-06-01), Holtzman
patent: 3742860 (1973-07-01), Fahringer
patent: 4148404 (1979-04-01), Heisler

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