Slide chair action
First Claim
1. A subassembly for a chair of the type including a separate seat and back which are adjustable among a plurality of positions, and a chair frame for supporting the seat and back above a surface, the subassembly comprising a seat frame for supporting the chair seat, a drive frame connectable to the chair back, an inter-couple between the seat and drive frames, a yoke frame for chair mounting, and another inter-couple between the seat and yoke frames, wherein the drive frame is freely slidably moveable relative to each of the seat frame and the yoke frame along a predefined path so as to simultaneously effect corresponding movement of the seat frame relative to each of the drive frame and yoke frame.
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Accused Products
Abstract
A chair action features a movable seat frame (11), a drive frame (12) for effecting seat frame movement, and an underpinning yoke frame (13), intervening pivot slides operative between frames, with guideway slots (14, 14, 16) and followers (19) variously in frames, to contrive a combined pivot swing and translational slide action, and free-floating seat frame mobility, while conforming to virtual pivot geometry; operable under a potential energy function in an inter-relationship between back recline and seat movement, for a common or harmonious experience between different occupancy weights.
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Citations
16 Claims
- 1. A subassembly for a chair of the type including a separate seat and back which are adjustable among a plurality of positions, and a chair frame for supporting the seat and back above a surface, the subassembly comprising a seat frame for supporting the chair seat, a drive frame connectable to the chair back, an inter-couple between the seat and drive frames, a yoke frame for chair mounting, and another inter-couple between the seat and yoke frames, wherein the drive frame is freely slidably moveable relative to each of the seat frame and the yoke frame along a predefined path so as to simultaneously effect corresponding movement of the seat frame relative to each of the drive frame and yoke frame.
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6. A chair comprising a separate seat and back which are adjustable among a plurality of positions, including a plurality of reclined positions of the back, and a chair frame for supporting the seat and back above a surface, the chair further comprising a subassembly including a seat frame for supporting the chair seat, a drive frame connectable to the chair back, an inter-couple between the seat and drive frames, a yoke frame for chair mounting, and another inter-couple between the seat and yoke frames, and wherein the drive frame is connected to the chair back, the yoke frame is connected to the chair frame so as to be stationary relative to the seat frame and the drive frame during relative movement of the seat and drive frames, and the seat frame supports the chair seat;
- and wherein further the drive frame is freely slidably moveable relative to each of the seat frame and the yoke frame along a predefined path so as to simultaneously effect corresponding movement of the seat frame relative to each of the drive frame and yoke frame.
- View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
Specification