Chairs and seats – Movable bottom – Independently movable resilient bottom sections
Patent
1982-06-11
1985-02-12
Lyddane, William E.
Chairs and seats
Movable bottom
Independently movable resilient bottom sections
297429, 297433, 297458, A47C 1034
Patent
active
044987021
ABSTRACT:
A seating unit including a concavely curved seat element and a concavely curved thigh support flexibly connected by leaf springs, a stop bracket to define a gap therebetween, having a stop bracket and tabs on the thigh support to reduce the gap at the sides of the seating unit, and having arms which mask the gap at the sides of the seating unit. The thigh support resiliently and resistively deflects downward to a point at which it contacts the stop bracket, and the leaf springs lie parallel in the same plane so that the ends of the leaf springs do not separate as the thigh support is deflected.
REFERENCES:
patent: 3057660 (1962-10-01), Schneider
patent: 3446532 (1969-05-01), Cramer
patent: 3632166 (1972-01-01), Lohr
patent: 3851920 (1974-12-01), Harris
patent: 3881772 (1975-05-01), Mohrman
patent: 3883173 (1975-05-01), Shephard et al.
patent: 4380352 (1983-04-01), Diffrient
Brown Peter R.
Lyddane William E.
Steelcase Inc.
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