Chairs and seats – Back movement resiliently opposed in operating position – Back adjusts independent of seat
Patent
1997-04-10
1999-06-29
Nelson, Jr., Milton
Chairs and seats
Back movement resiliently opposed in operating position
Back adjusts independent of seat
29734419, 2973033, 74553, 745005, 745015R, 745016, A47C 300, G05G 110, F16C 110
Patent
active
059157887
ABSTRACT:
A chair includes a seat, a base including a housing, and a reclineable back pivoted to the housing. The chair further includes a pneumatic system having a valve actuateable to adjust a height of the seat with respect to the base, a cam for blocking the degree of tilt of one of the back and seat, and a spring for supporting the reclineable back. A multi-function member or "satellite" control is operably mounted to the housing and includes a first spindle translatable for pulling the cable to open and close the valve for adjusting the height of the seat. The first spindle is further rotatable to operate the cam to at least partially immobilize the back. The multi-function member further includes a second spindle including a threaded portion engaging a nut for adjusting the tension of the spring when the second spindle is rotated. The second spindle is rotatably mounted in the first spindle.
REFERENCES:
patent: 3756654 (1973-09-01), Bauer
patent: 4328943 (1982-05-01), Eldon, III
patent: 4373692 (1983-02-01), Knoblauch et al.
patent: 4561693 (1985-12-01), Brownlie et al.
patent: 4595237 (1986-06-01), Nelsen
patent: 4779925 (1988-10-01), Heinzel
patent: 4916968 (1990-04-01), Kabaya
patent: 5222783 (1993-06-01), Lai
patent: 5427434 (1995-06-01), Hybarger
patent: 5577804 (1996-11-01), Tedesco
patent: 5577807 (1996-11-01), Hodge et al.
Jr. Milton Nelson
Steelcase Inc.
LandOfFree
Multi-function control for chair does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-function control for chair, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-function control for chair will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1369348