Elevator mechanism for multiple level mechanical car parking str

Details Elevator mechanism for multiple level mechanical car parking str Elevator mechanism for multiple level mechanical car parking str

1975-08-11

1977-02-01

Paperner, L. J.

214 164A, B65G 4700

Patent

active

040057852

ABSTRACT:
An elevator mechanism is provided for use in a multiple tier car parking system and which is controllable to hoist the cars vertically to different levels of the structure and to move the cars horizontally at each level to different parking stalls or bins on the individual tiers. The elevator frame is supported on the second floor level of the structure, as described in U.S. Pat. No. 2,714,456, to permit it to pass over occupied ground level zones during its horizontal travel. The elevator platform is controlled by a usual elevator winch and counterweight assembly, and it also uses one or more vertical lead screw drives for auxiliary hoisting, floor levelling and safety redundancy purposes, to prevent sag of the platform, and for other purposes to be described. The frame is supported at the second floor level on horizontal rails by means of dual chain bearings which provide a line contact rather than a point contact with respect to the rails, and which are quieter than wheels and have no tendency to bind with respect to the rails, so that the elevator mechanism may be moved horizontally back and forth along the crane-way. The bearings are free-wheeling, separate independent means being provided to drive the crane along the rails.

REFERENCES:
patent: 281632 (1883-07-01), Kidd
patent: 479314 (1892-07-01), Stearns
patent: 2268800 (1942-01-01), Butzien
patent: 2714456 (1955-08-01), Manaugh
patent: 2951599 (1960-09-01), Bogar
patent: 3190703 (1965-06-01), Thomson et al.
patent: 3468401 (1969-09-01), Letz
patent: 3559822 (1971-02-01), Lichtenford
patent: 3817398 (1974-06-01), Jones
Thomson Industries-Roundway Bearings and Ways; Rec'd 6/24/64; pp. 1- 6, & 10.

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