Lifting mechanism for sliding doors

Details Lifting mechanism for sliding doors Lifting mechanism for sliding doors

1975-07-28

1976-11-02

Schroeder, Werner H.

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Panel hangers, travelers and/or tracks

Wheel mounts

E05D 1302

Patent

active

039888010

ABSTRACT:
A sliding door includes a roller lifting mechanism provided by horizontally spaced bell cranks to which rollers are connected and which may be pivoted downwardly to engage a door track for raising the door so that it may be laterally moved to one side of the door opening. The lifting mechanism includes a cam element which is manually rotated to exert a push force on the bell crank levers for pivoting the same into the lift position. A modified version of the lift mechanism includes a linkage arrangement which exerts a pulling action on the bell cranks for achieving the lifting function.

REFERENCES:
patent: 1941225 (1933-12-01), Radke et al.
patent: 2225679 (1940-12-01), Beauchamp
patent: 2258713 (1941-10-01), Olander
patent: 2373447 (1945-04-01), Beauchamp
patent: 2387161 (1945-10-01), Madland
patent: 2427566 (1947-09-01), Madland
patent: 2488634 (1949-11-01), Madland
patent: 2682075 (1954-06-01), Dietrichson
patent: 2682076 (1954-06-01), Christensen
patent: 2992461 (1961-07-01), Madland
patent: 3711139 (1973-01-01), Polk, Jr.

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