Variable configuration seating
First Claim
1. {Pivot Disposition}A variable configuration chair (10) or chair support assembly comprising a seat frame (11) a back frame (12) mounted upon a movable pivot or slide pivot (15), with seat and base frames interconnected by a variable disposition element and/or coupling (14), whereby spacing between back pivot axis and back-seat coupling reflects seat occupancy.
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Accused Products
Abstract
A variable chair (10) features variable displacement between a back-to-seat pivot or slide pivot interconnection (14) and a back sliding pivot (15), to compensate for occupant weight in tilt moment in a weight responsive action; a particular construction features opposed pairs of intercoupled seat and back crank arm frames (111, 113) mounted upon a carrier or ground frame (114) by which the chair is supported, to achieve a back tilt, seat slide action; with the option of frame flex for restorative action; and with combined back and seat action about a virtual pivot which can approximate to a natural occupant body spine lumbar pivot and associated pivot movement path.
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Citations
18 Claims
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1. {Pivot Disposition}
A variable configuration chair (10) or chair support assembly comprising a seat frame (11) a back frame (12) mounted upon a movable pivot or slide pivot (15), with seat and base frames interconnected by a variable disposition element and/or coupling (14), whereby spacing between back pivot axis and back-seat coupling reflects seat occupancy.
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17. {Crank Frame Intercouple}
A variable configuration chair, with relatively movable, cranked back, seat and carrier frames (111, 113, 114), for a back-tilt or recline and seat-slide interaction, over a seat ramp inclination variable with occupancy; and a back pivot movable in relation to a back and seat coupling, whereby back tit resistance varies with back pivot disposition and/or seat ramp inclination.
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18. {Chair as Described and Illustrated}
A chair or chair support assembly substantially as hereinbefore described with reference to, and as shown in, the accompanying drawings.
Specification