Horizontally supported planar surfaces – Vertically adjustable – Shelf type
Patent
1983-06-02
1986-08-12
Lyddane, William E.
Horizontally supported planar surfaces
Vertically adjustable
Shelf type
108106, A47B 900
Patent
active
046049550
DESCRIPTION:
BRIEF SUMMARY
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a National Phase Application corresponding to PCT/EP 82/00220 filed Oct. 2, 1982 and based in turn upon a German application of Oct. 3, 1981.
FIELD OF THE INVENTION
The invention relates to a height-adjustable table for work places requiring a video screen, e.g. a video monitor, and more particularly to a table having a table stand with columns.
BACKGROUND OF THE INVENTION
A table of this type can have columns telescoping from the lower upright portion and with a cross-bar connecting the lower portions of the columns provided with a height-adjustment device for a telescopic keyboard plate on one hand and on the other hand for the upper portion of the columns supporting the video monitor, independently adjustable with respect to the keyboard plate, whereby the table stand for the keyboard plate and the screen plate is provided with columns having upper and lower portions and its own height-adjustment device and further with actuating means mounted on a wide side of the right- and left-hand columns of the table, with driving shafts for the height-adjustment of the keyboard plate on the one hand and of the video screen on the other.
A height-adjustable table of this kind is known wherein the two separately actuatable driving shafts for height-adjustment devices are mounted one on the right column and the other on the left column, with actuating knobs at the ends. But in this construction the driving shafts are visibly mounted on the outside of the table columns. This affects not only their appearance, but also requires additional constructions in order to connect the driving shafts to the otherwise separated cross-bars for the table columns corresponding to the keyboard plate on the one hand and to the video screen plate on the other.
OBJECT OF THE INVENTION
It is the object of the invention to overcome this drawback and to provide a height-adjustable table for work places with a video monitor of the aforedescribed kind, whereby the actuating shafts for the height-adjustment devices are located inside the table stand practically invisible and supported in a simple manner.
SUMMARY OF THE INVENTION
The invention attains the object in a height-adjustable table of this kind by having the actuating shafts traverse both lower and upper portions of the column for the keyboard plate and by having vertical slotted holes in the pierced upper portion of the column for the passage of the actuating shafts, said holes having lengths at least equal to the travel. As a result the table stand, or the table columns are designed for the support and housing of the actuating shafts and in addition only the actuating devices for these shafts, that must be positioned outside are visible at the lower end on the front part of the table. Basically, there is also a possibility within the framework of the invention to arrange the driving shafts to pass through both the lower and the upper portions of the column for the plate of the video screen, resulting in the positioning of the actuating devices of the driving shafts at the rear side of the table according to the invention.
According to the invention the driving shafts can be mounted in the lower column portions and/or in the cross-bar connecting jointly the lower column portions, the cross-bar having end bearings for the driving shafts, for this purpose. Thus a complete covering of the driving shaft actuating the rear height-adjustment device for the plate of the video screen results.
For a table having as height-adjustment devices screw spindles with spindle nuts mounted in a vertical position on the lower portions of the columns and the cross-bar, said spindles being connected with the telescopic upper portions of the columns via a bridge gripping through a guide slot in the lower portions of the columns, the meshing bevel gears or worms and worm gears are mounted at the inside of the cross-bar on the driving shafts and the upper end of the spindles for the individual height-adjustment of the keyboard plate a
REFERENCES:
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patent: 396741 (1889-01-01), Healey
patent: 429458 (1890-06-01), Kraemer
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patent: 1189606 (1916-07-01), Miller
patent: 2368748 (1945-02-01), Doty
patent: 2531925 (1950-11-01), Taylor et al.
patent: 3385238 (1968-05-01), Jay
Fleischer Joachim
Fleischer Willy
Brittain James R.
Dubno Herbert
Lyddane William E.
Ross Karl F.
Willy Fleischer Metallwarenfabrik GmbH & Co.
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