Horizontally supported planar surfaces – Vertically adjustable – Shelf type
Patent
1998-07-31
2000-05-16
Chen, Jose V.
Horizontally supported planar surfaces
Vertically adjustable
Shelf type
A47B 900
Patent
active
060621486
ABSTRACT:
A counterbalance mechanism for height adjustable computer equipment supports and the like that includes a drive shaft mounted on an associated support for axial rotation. The drive shaft is operably connected with a worksurface to facilitate vertical adjustment of the same within a predetermined range. The counterbalance mechanism has a first energy storage device operably connected between the support and the drive shaft, which applies a first axial torque to the drive shaft in a first rotational direction. The first energy storage device is configured such that the first axial torque diminishes at a predetermined rate as the drive shaft rotates in the first rotational direction. A second energy storage device is operably connected between the support and the drive shaft, and applies a second axial torque to the drive shaft in a second rotational direction, opposite to the first rotational direction, thereby defining a resultant counterbalance force which facilitates vertical adjustment of the worksurface. The second energy storage device is configured such that when the drive shaft rotates in the first rotational direction, the second axial torque diminishes at a rate which is substantially equal to the predetermined rate of the first energy storage device, whereby the resultant counterbalance force remains generally constant throughout the predetermined range of vertical adjustment of the worksurface.
REFERENCES:
patent: 248743 (1881-10-01), Hill
patent: D296851 (1988-07-01), Kelley
patent: D335787 (1993-05-01), Hollington
patent: 610933 (1898-09-01), Wagoner
patent: 878674 (1908-02-01), Samuelson
patent: 2641338 (1953-06-01), Findley
patent: 2705354 (1955-04-01), Parsons
patent: 3207099 (1965-09-01), Black et al.
patent: 3259081 (1966-07-01), St.ang.alnacke
patent: 3285207 (1966-11-01), Vom Hagen
patent: 3304892 (1967-02-01), Bengtson
patent: 3310136 (1967-03-01), Bricker et al.
patent: 3347511 (1967-10-01), Myers
patent: 3358620 (1967-12-01), Parigi
patent: 3359927 (1967-12-01), Janus
patent: 3415586 (1968-12-01), Hammond
patent: 3651899 (1972-03-01), Yoshii
patent: 3675597 (1972-07-01), Oddsen et al.
patent: 3682108 (1972-08-01), Perminov
patent: 3707930 (1973-01-01), Yindra et al.
patent: 3820752 (1974-06-01), Oram
patent: 3890907 (1975-06-01), Peterson
patent: 3905311 (1975-09-01), Carpentier
patent: 4074873 (1978-02-01), Hayashi et al.
patent: 4130069 (1978-12-01), Evans et al.
patent: 4195578 (1980-04-01), Benoit et al.
patent: 4208028 (1980-06-01), Brown et al.
patent: 4247068 (1981-01-01), Edelson et al.
patent: 4266747 (1981-05-01), Souder, Jr. et al.
patent: 4315466 (1982-02-01), Boerigter
patent: 4373334 (1983-02-01), Carlander
patent: 4381714 (1983-05-01), Henneberg et al.
patent: 4384742 (1983-05-01), Wisniewski
patent: 4440096 (1984-04-01), Rice et al.
patent: 4515087 (1985-05-01), Kurrasch
patent: 4590865 (1986-05-01), Rutsche
patent: 4593874 (1986-06-01), Dunagan
patent: 4604955 (1986-08-01), Fleischer et al.
patent: 4615279 (1986-10-01), de la Haye
patent: 4619208 (1986-10-01), Kurrasch
patent: 4627364 (1986-12-01), Klein et al.
patent: 4650143 (1987-03-01), Kurrasch
patent: 4651652 (1987-03-01), Wyckoff
patent: 4667605 (1987-05-01), Bastian
patent: 4714025 (1987-12-01), Wallin et al.
patent: 4747353 (1988-05-01), Watt
patent: 4751884 (1988-06-01), Ball
patent: 4753409 (1988-06-01), Wilcox
patent: 4768762 (1988-09-01), Lund
patent: 4790611 (1988-12-01), Craner
patent: 4852500 (1989-08-01), Ryburg et al.
patent: 4881471 (1989-11-01), Schwartz et al.
patent: 4898103 (1990-02-01), Pontoppidan et al.
patent: 4922836 (1990-05-01), Damico
patent: 4969403 (1990-11-01), Schwartz et al.
patent: 4981085 (1991-01-01), Watt
patent: 4987835 (1991-01-01), Schwartz et al.
patent: 5020752 (1991-06-01), Rizzi et al.
patent: 5083514 (1992-01-01), Schwartz et al.
patent: 5088421 (1992-02-01), Beckstead
patent: 5129611 (1992-07-01), Grover et al.
patent: 5224429 (1993-07-01), Borgman et al.
patent: 5230290 (1993-07-01), Crossman
patent: 5236171 (1993-08-01), Holmquist
patent: 5243921 (1993-09-01), Kruse et al.
patent: 5244253 (1993-09-01), Hollington et al.
patent: 5259326 (1993-11-01), Borgman et al.
patent: 5282593 (1994-02-01), Fast
patent: 5289782 (1994-03-01), Rizzi et al.
patent: 5311827 (1994-05-01), Greene
patent: 5322025 (1994-06-01), Sherman et al.
patent: 5323695 (1994-06-01), Borgman et al.
patent: 5337678 (1994-08-01), Grout
patent: 5339750 (1994-08-01), Smies
patent: 5370063 (1994-12-01), Childers
patent: 5373793 (1994-12-01), Crossman
patent: 5394809 (1995-03-01), Feldpausch et al.
patent: 5398622 (1995-03-01), Lubinskas et al.
patent: 5400721 (1995-03-01), Greene
patent: 5402736 (1995-04-01), Dausch
patent: 5408940 (1995-04-01), Winchell
patent: 5421481 (1995-06-01), Fortmann et al.
patent: 5447099 (1995-09-01), Adams et al.
patent: 5467721 (1995-11-01), Gosch
patent: 5483903 (1996-01-01), Pierce et al.
patent: 5495811 (1996-03-01), Carson et al.
patent: 5526756 (1996-06-01), Watson
patent: 5549052 (1996-08-01), Hoffman
patent: 5549053 (1996-08-01), Grout
patent: 5598788 (1997-02-01), Jonker
patent: 5598789 (1997-02-01), Jonker
patent: 5682825 (1997-11-01), Manner
patent: 5706739 (1998-01-01), Shaheen et al.
patent: 5715759 (1998-02-01), Lee
patent: 5718406 (1998-02-01), Long
patent: 5778799 (1998-07-01), Eyre
patent: 5819669 (1998-10-01), Eyre
Hodge Andrew B.
Kaplan Jonathan I.
Vale Alan M.
Vassallo Steven P.
Youngs Bradley D.
Chen José V.
Steelcase Development Inc.
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