Workstation with adjustable height frame
AssigneeLista International Corporation
InventorsRonald J. Santoro, Richard A. Brinkman
Life of this patent
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Abstract
A height-adjustable workstation main frame includes a pair of telescoping, adjustable legs and a rigid yet efficient fixing frame carried by the upper portions of the legs to provide lateral stability, increased weight bearing capacity and functional flexibility. The same telescoping leg structure is adaptable to receive a motor drive, a manual crank lift or a manually adjusted mechanism for establishing the desired height of the table top. Fore and aft stability is increased by the shape and interengagement of the telescoping inner and outer leg weldments and the use of duplicate, laterally aligned bearing slide assemblies interconnecting the inner and outer leg weldments of each telescoping leg.
Claims13
In a frame for an adjustable-height workstation including first and second upright leg assemblies, a floor-engaging support base for each leg assembly, and a generally horizontal fixing frame connected at first and second ends to said first and second leg assemblies respectively, the improvement comprising:
- each upright leg assembly including an inner leg and an outer leg assembled in telescoping relation;
- one of said inner leg and outer leg of each leg assembly connected to an associated end of said fixing frame and the other of said inner leg and outer leg of each leg assembly connected to an associated support base, each of said inner and outer legs comprising:
- at least one side wall and first and second end walls extending respectively from a front and a rear of an associated side wall, said first and second end walls of said inner leg and said outer leg having first and second inclined walls formed in a general V shape and being nested with an adjacent end wall of the associated telescoping leg.
In a frame for a workstation including first and second upright leg assemblies, a floor-engaging support base for each leg assembly, and a generally horizontal fixing frame connected at first and second ends to said first and second leg assemblies respectively, the improvement wherein said fixing frame comprises:
- an elongated beam having an upright wall having an upper edge and a lower edge;
- first and second chases formed respectively integrally with said upper edge and said lower edge of said upright wall and extending in a first lateral direction, each of said chases defining a laterally elongated slot opening for receiving fasteners;
- and
- a channel member fixed to said beam and including an upper horizontal flange and a lower horizontal flange fixed respectively to said first and second chases of said beam and cooperating with said beam to define a box beam, a width of said box beam extending in a vertical direction.
Dependencies are inferred from the claim text.