Power-operating vertically adjustable cantilever shelves for app

Details Power-operating vertically adjustable cantilever shelves for app Power-operating vertically adjustable cantilever shelves for app

1975-11-17

1976-09-28

Nunberg, Casmir A.

Supports: cabinet structure

With movable components

Continuously housed

108147, 62132, 312312, F25B 4900, F16M 100

Patent

active

039828018

ABSTRACT:
A power-operated vertically adjustable shelf is supported by shelf arms in cantilevered fashion at the rear of an appliance cabinet by a gear and roller on each shelf arm, with each gear and roller vertically offset engaging a vertically extending toothed rack and a roller track. Electric drive means, carried by the cabinet, powers a vertically extending drive shaft of which the torque is transmitted to the shelf operating gear through a normally disengaged clutch which is engaged by user operating means adjacent the front of each shelf whereby powered vertical movement of the shelves is achieved. A dual position selector shelf switch is operable upon opening the door to permit the user to select up or down power shelf movement with the shelf switch being neutralized upon closing of the cabinet door.

REFERENCES:
patent: 2737781 (1956-03-01), Gelfand
patent: 3063775 (1962-11-01), Snowman
patent: 3360322 (1967-12-01), Hanifan
patent: 3572049 (1971-03-01), Moorman
patent: 3774872 (1973-11-01), Morelli

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