Vertically adjustable work tables

Details Vertically adjustable work tables Vertically adjustable work tables

1999-12-10

2000-11-28

Chen, Jose V.

Horizontally supported planar surfaces

Vertically adjustable

Shelf type

2481885, A47B 900

Patent

active

061520497

ABSTRACT:
A vertically adjustable work table includes a lower frame with at least two outer tubes which each form a part a support leg and are spaced apart from each other and are connected to each other, and an upper frame composed of a work plate and two inner tubes guided in the outer tubes. The inner tubes are movable by traction ropes connected to a traction unit, wherein the traction ropes are attached to the top of the lower frame, extend downwardly toward the bottom of the inner tube and are guided from the bottom of the inner tube toward the upper portion of the outer tube and outwardly into the lower frame. The traction unit is provided with a counter traction unit with at least two traction ropes which extend outwardly out of the lower frame and are connected to the top of the upper frame.

REFERENCES:
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patent: 638755 (1899-12-01), Piper et al.
patent: 3820176 (1974-06-01), Feiertag
patent: 4619208 (1986-10-01), Kurrasch
patent: 4651652 (1987-03-01), Wyxkoff
patent: 5400721 (1995-03-01), Greene
patent: 5421481 (1995-06-01), Fortmann et al.
patent: 5598789 (1997-02-01), Jonker
patent: 5682825 (1997-11-01), Manner
patent: 5715759 (1998-02-01), Lee
patent: 5797331 (1998-08-01), Watt

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