Chairs and seats – Back movement resiliently opposed in operating position – Back and seat adjust simultaneously
Patent
1986-04-10
1988-01-19
Dorner, Kenneth J.
Chairs and seats
Back movement resiliently opposed in operating position
Back and seat adjust simultaneously
297302, 297306, 297355, A47C 1024
Patent
active
047201428
ABSTRACT:
A varible back stop is provided for tilt back charis, and other similar seating, such as the type having a stationary support, and a back which tilts with respect to the support. The variable back stop comprises a stop surface, and at least one stop member, which are located on associated portions of the chair support and the chair back. The stop surface and the stop member are mutually positioned such that rearward tilting of the chair back generally converges the stop surface and the stop member along a line of motion, and forward tilting of the chair back generally diverges the same. The stop member has an engaged position wherein at least a portion of the stop member is positioned in the line of motion to abut the stop surface upon rearward tilting of the chair back, and a disengaged position, wherein the stop member is positioned outside of the path of motion to avoid abutting the stop surface upon rearward tilting of the chair back. An actuator shifts the stop member between the engaged and disengaged positions to selectively stop or limit rearward tilting of the chair back.
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Steelcase Chair Control P/N 4540861, Single Position Back Stop.
Holdredge Russell T.
Knoblock Glenn A.
Roossien Charles P.
Brown Peter R.
Dorner Kenneth J.
Steelcase Inc.
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