Infinitely adjustable lifting mounting

Details Infinitely adjustable lifting mounting Infinitely adjustable lifting mounting

1998-11-02

2000-05-09

Herrmann, Allan D.

Machine element or mechanism

Control lever and linkage systems

Elements

5618, 5660, 49394, 297327, 297337, 74586, G05G 524, E05B 5506, A47C 1025

Patent

active

060587989

ABSTRACT:
With a device for the infinite adjustment of a telescopic rod for fixing pivotable elements into an open position and returning them into a closed position, and for raising and lowering adjustable head and leg parts of a bed, a couch and an armchair, the invention is directed to making infinite raising possible while retaining the return from the upper dead center position into the lower dead center position after the former has been reached. This is achieved by a toothed rack, a cage-like element and two toothed wheels which run along the toothed rack, are guided in the cage-like element and whose spacing can be moved by the rod from a position locking the teeth of the toothed wheels against one another into a position which disengages the teeth.

REFERENCES:
patent: 2420555 (1947-05-01), Mott
patent: 2672061 (1954-03-01), Gardner
patent: 3403581 (1968-10-01), Harness
patent: 4666210 (1987-05-01), Bianchi et al.
patent: 5167166 (1992-12-01), Ruhlman

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