Chairs and seats – Bottom or back – Framework
Patent
1982-01-21
1985-02-19
McCall, James T.
Chairs and seats
Bottom or back
Framework
297418, 297445, 297460, D 6364, A47C 702, A47C 746
Patent
active
045001375
ABSTRACT:
The chair has a specially constructed seat made up of a forward section, central section and rear section functioning respectively as thigh, tuber and sacral supports for an occupant seated in the chair. The central section serving as the tuber support is inclined upwardly in a rearward direction at a slight angle. The rear section or sacral support, in turn, is increasingly inclined at a greater angle to terminate in an arcuate rear edge for the seat so that the left and right sides of this rear section wrap around the sides of the central section to provide a crescent-shaped cup rim functioning to support the sacrum even when the occupant sits obliquely in the chair. Back and arm rests are provided and cooperate together to define a hip rest bulge which extends horizontally over 180.degree. so that again proper pelvic support is provided for an occupant sitting obliquely in the chair. The components are so formed that the chair better enables the sitter to freely shift from one sitting posture to most any other sitting posture, all the while providing comfortable support. In essence, the construction motivates the sitter to move about, changing from posture to posture so that the sitter remains more alert and productive than would otherwise be possible.
REFERENCES:
patent: D193889 (1962-09-01), Buzzitta
patent: 2208745 (1940-07-01), Bloomberg
patent: 3482874 (1969-12-01), Henebry et al.
patent: 4153294 (1979-05-01), Meiller et al.
Brown Peter R.
McCall James T.
Pastoriza Ralph B.
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