Supports – Stand – Understructure
Reexamination Certificate
1999-08-23
2001-06-26
Ramirez, Ramon O. (Department: 3632)
Supports
Stand
Understructure
C248S396000, C108S008000, C108S147120, C108S147190
Reexamination Certificate
active
06250594
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates to a device for adjusting the height of panels, particularly work tables, having at least one console that is mounted to a stand or table-framework and is provided with at least two vertical translational lifting elements.
Devices of this type are known as height adjusters of tables, especially work tables, conference tables or drawing tables, etc. The known height adjusters (see DE 297 06 520 U1) directly engage the work table to be adjusted. Two height-adjustment devices are secured beneath the panel such that the panel can be displaced in the vertical axis. The known devices are usually equipped with a housing, in which the lifting elements are accommodated. The housing is screwed to the table stand or framework. For this purpose, special fastening means are mounted to the stand and the housing.
A disadvantage of known devices is that they can only be disposed at locations defined by receptacles that are provided on the stands or framework. Furthermore, known devices are complicated to produce because of special receptacles on the housings and stands or framework.
SUMMARY OF THE INVENTION
It is the object of the invention to provide a device for adjusting the height of panels, the device having a simple design and being secured to arbitrary points on the stands or table-framework. In accordance with the invention, this object is accomplished by a height adjusting device mounted on the stand where a lid is screwed to the console of the device; an opening is embodied between the console and the lid; the lifting elements are received by bores in the console; and the lifting elements are inserted, fixed against relative rotation, into the bores.
With the embodiment of the invention, it is possible to dispose the device at arbitrary points on the stands or table-framework. The mounting of the device to the stand or framework occurs in that a profile section of the frame extends through the opening between the lid and the console. The opening matched the profile of the frame. After the lid has been screwed to the console, the device is clamped to the profile. The bores offer a simple means of securing the lifting elements in the console. This also facilitates assembly considerably.
In one embodiment of the invention, at least one boss, which is guided in slots of the console, is embodied on the lifting elements. This is a simple means of assuring a high operating reliability of the device of the invention.
In a modification of the invention, the lifting elements are supported on rings having a central hole. This assures a simple device assembly. This modification also assures reliable functioning of the lifting elements.
In a modification of the invention, a recess is provided in the console, between the lifting elements. The recess or opening is adapted in cross-section to the cross-section of the framework. The varying size of the recess permits framework profiles of larger dimensions to be guided through between the console and the lid.
In an advantageous embodiment of the invention, each lifting element has a support element that is embodied in the form of an axle and is received by a receptacle in the lifting element. The support elements engage a rectangular tubular frame on which a workable or tabletop secured. provision of support elements assures the function of the height adjuster at the panel, even under difficult installation conditions. The axle form is especially well-suited because of its stability properties. Moreover, it can be produced economically.
In an advantageous modification of the invention, the axles are guided in a hole or a slot by their ends remote from the lifting element. The use of holes and slots permits the compensation of the occurring path elongation with a desired inclination of the panel.
The lifting elements are preferably provided with a ruler, which makes it simple to ascertain the respective height of the lifting element.
The dependent claims disclose modifications and embodiments of the invention. The drawing illustrates an embodiment of the invention, which is described in detail
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Kelemen Gabor J.
Ramirez Ramon O.
Szumny Jon
Venable
Voorhees Catherine M.
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