Lifting mechanism for sliding doors

Details Lifting mechanism for sliding doors Lifting mechanism for sliding doors

1976-07-09

1977-12-27

Schroeder, Werner H.

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

Panel hangers, travelers and/or tracks

Wheel mounts

49235, 2481881, E05D 1300

Patent

active

040645916

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: 1804329 (1931-05-01), Farr
patent: 1949805 (1934-03-01), McGrary et al.
patent: 2223760 (1940-12-01), Haaser
patent: 2225679 (1940-12-01), Beauchamp
patent: 2488634 (1949-11-01), Madland
patent: 2827115 (1958-03-01), Stroup
patent: 3093091 (1963-06-01), Tax et al.
patent: 3440682 (1969-04-01), Olander

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