Control system for vertical storage equipment

Details Control system for vertical storage equipment Control system for vertical storage equipment

1984-12-10

1987-03-17

Dorner, Kenneth J.

Supports: cabinet structure

With continuously level revolvable components

Continuously housed

108 22, 198794, 211 15, 211121, 222371, 312 97, A47B 4900

Patent

active

046502645

ABSTRACT:
A control system for vertical storage equipment requires only two sensing devices, in combination with a microprocessor controller, for positioning a selected article carrier at a specified work station. One sensor senses a reference mark having a direct speed and position relation with the carriers. The second sensor senses at least one reference mark mounted to a high speed member in the drive mechanism used to move the carriers. By sensing the high speed member, the resolution of the control system is greatly increased, thereby providing the control system with increased accuracy and versatility. A flywheel having a relative inertia greater than the total of the remaining moving parts is preferably employed to negate the influence of carrier loading conditions on control system smoothness and accuracy.

REFERENCES:
patent: 1494732 (1924-05-01), Cahoon
patent: 2678250 (1954-05-01), Heinig
patent: 3141123 (1964-07-01), Olson
patent: 3480343 (1969-11-01), Kanitz
patent: 3589785 (1971-06-01), Appleby
patent: 3639023 (1972-01-01), Anders et al.
patent: 3701414 (1972-10-01), Mayer et al.
patent: 3915531 (1975-10-01), Morgan
patent: 4026617 (1977-05-01), Basio et al.
patent: 4401034 (1983-08-01), Gaudet
patent: 4484288 (1984-11-01), Riemenschneider

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