United States Patent [19] [ii] Patent Number: 4,589,621
Hunt et al. [45] Date of Patent: May 20,1986
[54] ERGONOMIC MONITOR STAND
[75] Inventors: Ronald E. Hunt, Georgetown; Verlon E. Whitehead, Austin, both of Tex.
[73] Assignee: International Business Machines Corporation, Annonk, N.Y.
[21] Appl. No.: 567,702
[22] Filed: Jan. 3,1984
[51] Int. CI.* F16M 13/00
[52] U.S. CI 248/586; 254/126;
248/421
[58] Field of Search 248/586, 585, 587, 588,
248/590, 591, 421, 354.1, 352; 254/126, 122
[56] References Cited
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1,893,295 1/1933 Bailly 248/586
2,227,764 1/1941 Saunders et al. .
2,513,440 7/1950 Alderson .
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3,741,512 6/1973 Olsson 248/585
3,857,548 12/1974 Takeuchi 254/126
4,025,054 5/1977 Yamazaki 254/126
4,047,759 9/1977 Koscinski 248/587
4,055,329 10/1977 Hammond 254/126
4,304,385 12/1981 Farouche et al 248/410
4,305,563 12/1981 Presson 248/349
4,365,779 12/1982 Bates et al 248/371
4,368,867 1/1983 Pendelton 248/346
4,372,515 2/1983 Glumac 248/178
FOREIGN PATENT DOCUMENTS
3036852 5/1982 Fed. Rep. of Germany .
363116 4/1929 France .
0010491 4/1980 France .
Primary Examiner—Ramon S. Britts
Assistant Examiner—Ramon O. Ramirez
Attorney, Agent, or Firm—Andrea P. Bryant
[57] ABSTRACT
A stand (10) is disclosed for supporting a computer display (8) workstation for easy adjustment without tools to a desired position by rotating the stand, tilting a platform (60) attached to the stand and lifting the stand. The stand comprises a six bar (20, 22, 16, 30, 32, 54) pivotable linkage having spring (44, 48, 52) means for compensating for the load, the spring force being adjustable to accommodate changes in load without affecting the spring rate.
6 Claims, 6 Drawing Figures
