US 20050248239 A1
A casegood such as a pedestal desk or credenza is provided with a height adjustment mechanism. The height adjustment mechanism is attached to an outer wall of the casegood. By manipulating the height adjustment mechanism, the distance of the casegood's work surface from the floor can be adjusted so as to provide an ergonomic and efficient work area.
1. A sit-to-stand return comprising:
a sit-to-stand work surface;
attachment means for attaching the sit-to-stand return to a casegood;
a work surface height adjustment mechanism for moving the work surface between a first lower position and a second higher position; and
a sit-to-stand return height adjustment mechanism for adjusting the height of the first lower position relative to a floor.
2. The sit-to-stand return of
3. The sit-to-stand return of
4. The sit-to-stand return of
5. The sit-to-stand return of
6. The sit-to-stand return of
7. The sit-to-stand return of
8. The sit-to-stand return of
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11. The sit-to-stand return of
This application is a continuation-in part of U.S. application Ser. No. 10/838,717, filed May 4, 2004 (now U.S. Pat. No. ______).
The present invention relates to casegoods such as furniture for an office. More specifically, the field of the invention involves casegoods having adjustable height mechanisms.
Modem casegoods allow flexible arrangement of an office or other room and facilitate the connection of office equipment such as telephones, computers, monitors and printers. Typically, a casegood is composed of work surfaces, cabinets, panels and drawers.
One critical factor for an ergonomic casegood is the height of the work surfaces. The position of the hands, feet, torso, and legs of a person are dependent upon the height of the work surface. If the work surface height is not appropriate, a person could experience inconvenience and discomfort. In extreme cases, a person may even suffer injury from repetitively using a work surface at the wrong height.
Ideally, the height of the work surface should be varied dependent upon the height of the person using the casegood. For example, a person of a height of about five feet should have a work surface approximately 26 inches from the floor while a person of a height of about six feet should have a work surface approximately 29 inches from the floor. Drawers at an appropriate height relative to the work surface should also be available to someone using the work surface.
Variable height tables, such as those shown U.S. Pat. No. 5,549,053, issued to John E. Grout, U.S. Pat. No. 6,312,069, issued to Teng-Tsai Wang and U.S Pat. No. 5,598,788, issued to Kurt A. Jonker have been developed. However, none show an adjustable height casegood or an adjustable height work surface with attached drawers where the height of the drawers is adjustable as well. If the height of the drawers associated with the work surface do not move, an awkward working arrangement is created between a relatively high work surface and relatively low drawers.
A casegood providing for adjustable height both of the work surface and attached drawers is thus highly desirable.
The aforementioned problems are overcome in the present invention. The casegood is provided with vertical walls. The work surface of the casegood is positioned on top of the walls. Height adjustment mechanisms are attached to the exterior of the vertical walls. By raising and lowering the vertical walls, the height of the work surface is also adjusted. Drawers or cabinets attached to the sidewalls and the work surface are also raised or lowered at the same time as the work surface. The height of all components of the casegood are at the same relative height, allowing for ease of use of the entire casegood.
To allow ease of adjustment of the height, the height adjustment mechanism is attached to the exterior portion of the sidewall. The mechanism is enclosed within a removable cover so as not to detract from the appearance of the casegood. If the mechanism needs servicing, the cover is removed.
The adjustable height mechanism itself is composed of a leg with a threaded portion. The threaded portion inserted within an internally threaded cylinder. The internally threaded cylinder is attached to a bracket and the bracket is attached to the casegood sidewall. By rotating the legs of the various mechanisms attached to the casegood, the entire casegood may be either raised or lowered. The lower portion of the leg is marked with measurements indicating the distance of the work surface from the floor, thereby facilitating the alignment of the height of the casegood.
The casegood work surface is arranged to cover the tops of the height adjustment mechanism. Apertures are provided within the work surface for access to the well containing the height adjustment mechanism. At the top of the bracket is located a collar. An attachment such as cabinetry or screens can be placed on the top of casegood by inserting stanchions affixed to the attachment into the collar. When a select number of stanchions are properly affixed within the collars, the attachment is firmly held in position on the casegood.
When stanchions are not in place within the apertures, operculums may be used. The operculum covers an aperture when no stanchion is inserted into the collar. The operculum is provided with grommets so that cabling or wiring can be extended through the operculum and the aperture and into the well. The work surface will thus be kept generally free from wires or cables.
The casegood could also be provided with a sit-to-stand desk. The height of the sit-to-stand desk can be adjusted in two different ways. First, the sit-to-stand desk is provided with a torsion mechanism for raising or lowering the work surface. Second, a slide mechanism located at the base of the sit-to-stand desk can adjust the height of the desk.
These and other objects, advantages and features of the invention will be more readily understood and appreciated by reference to the detailed description of the drawings.
Pedestal desk 20, bridge 22 and pedestal credenza 24 are supported by legs 30. Pedestal desk 20 has a plurality of vertical walls. Collectively, the vertical walls define a frame. The desk has an interior and an exterior. The vertical walls have exterior vertical surfaces 32. Legs 30 are located on exterior vertical surfaces 32 of pedestal desk 20, bridge 22 and pedestal credenza 24. Legs 30 are substantially contained within leg enclosures 34. Semicircular apertures 36 allow for the attachment of other units. While casegood 5 is shown as a modular work station, casegood 5 could be any furniture such as a desk or cabinet.
Leg 30 has lower enumerated portion 36 and threaded portion 38. Lower enumerated portion 36 is numbered from 26 to 32. Each number is separated from the previous by a space of one inch. The numbers on the enumerated portion 36 are indicative of the height of the work surface 22 above the floor. For example, if number “30” were displayed immediately below cover 33, work surface 22 would be approximately 30 inches above the floor. Obviously, the numbers on the leg could correspond to any measurement system and could be in increments other than one inch.
Leg 30 is held to leg mechanism 35 by internally threaded cylinder 44. Internally threaded cylinder 44 is attached to bracket 46. Bracket 46 is attached to outer surface 32 by a plurality of fasteners, such as screws. Threaded portion 38 of leg 30 extends through internally threaded cylinder 44. Rotation of leg 30 causes upper surface 40 to be raised or lowered.
The leg could be rotated by manipulation of the lower portion of leg 30. Alternatively, hexagonal head 48 could be provided to extend from the top of leg 30. If hexagonal head 48 were provided, cover 33 would be removed. A tool such as a wrench would be attached to hexagonal head 48. The tool would then rotate leg 30, causing work surface 22 to move either up or down, and dependent upon the direction of rotation of leg 30. The numbers on leg 30 provide an easy indicator of the height of work surface 22, facilitating the adjustment of each leg 30 of casegood 5 so that all work surfaces are level.
At the top of bracket 46 is collar 49. Collar 49 is suitable for attachment to the stanchions of any object that might be placed on work surface 22.
Leg mechanism 35 is concealed under cover 33 providing a generally pleasing appearance, but leg mechanism 35 can be easily accessed for servicing by removing cover 33.
Additionally, casegood 5 could also be provided with a height adjustable sit-to-stand bridge, as shown in
Sit-to-stand desk 60 also includes height adjustment slides 68. Height adjustment slides 68 telescope into support enclosures 66, providing an ability to adjust the height of the work surface for sit-to-stand bridge by about eighteen inches. By moving height adjustment slides 68, the work surface of sit-to-stand bridge 60 will be as the same height of the other work surfaces of casegood 5 when sit-to-stand desk 60 is at its lowest position.
The use of a sit-to-stand desk within this desk configuration minimizes the movement of a person who wishes to use the sit-to-stand desk. Rather than move out of the work area to go to a sit-to-stand desk, the sit-to-stand desk is provided in the immediate area of the user. Repositioning of work materials, books, telephone and computer is thus unnecessary.
The convenient location of the sit-to-stand desk thus encourages a user to stand during the work day.
To avoid possible injury to a user, sit-to-stand desk 60 has a gap of one inch provided on each side of sit-to-stand desk 60 between the other components of casegood 5. Sit-to-stand desk 60 could be attached to other components of casegood 5.
Many types of accessories such as privacy screens, transaction counters, book shelves and overhead cabinets are often desired to be added above the work surface. These accessories are usually supported by the work surface.
Referring once again to
When an accessory is not in place within semicircular aperture 36, semicircular aperture 36 is provided with operculum 72. Operculum 72 has two grommets 74. Grommets 74 allow for cabling to be threaded through semicircular aperture 36. As shown in
Sit-to-stand return 80 is provided with retractable legs 96, 98. By adjustment of the height of retractable legs 96, 98 and adjustable legs 88, 90, the height of sit-to-stand return is adjustable to match that of casegood 81.
The above description is of the preferred embodiment. Various alterations and changes can be made without departing from the spirit and broader aspects of the invention as defined in the appended claims, which are to be interpreted in accordance with the principles of patent law including the doctrine of equivalents. Any references to claim elements in the singular, for example, using the articles “a,” “an,” “the,” or “said,” is not to be construed as limiting the element to the singular.