Desk construction

Details Desk construction Desk construction

1988-06-15

1990-02-06

Zugel, Francis K.

Horizontally supported planar surfaces

Vertically adjustable

108136, A47B 900

Patent

active

048981036

ABSTRACT:
A desk has a vertically adjustable top and at least one vertical guide member movable upwardly and downwardly on a support or frame. A spring leg is disposed between the frame and vertically adjustable desk components. The spring leg is pivoted at one end to a guide member and its other end is braced against a curved rail. The braced end is movable on the rail and lockable in positions corresponding to accommodate various loads on the desk top. The curve of the rail is chosen so that in any position of the braced spring end, the vertical components of force acting on the guide member are equal, at least in two opposite end positions of the desk top. This results in equilibrium in each vertical position for every load on the desk top, after the spring leg has been adjusted.

REFERENCES:
patent: 2137662 (1938-11-01), Alvarez
patent: 2356924 (1944-08-01), Froelich
patent: 2982050 (1961-05-01), May
patent: 3370556 (1968-02-01), Kooi
patent: 3820478 (1974-06-01), Bergenthal
patent: 3941440 (1976-03-01), Morzin et al.
patent: 4351245 (1982-09-01), Laporte
patent: 4747353 (1988-05-01), Watt

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