Seating structures with flexible backs

Details Seating structures with flexible backs Seating structures with flexible backs

1976-05-03

1977-09-13

Zugel, Francis K.

Chairs and seats

Supplemental back

Including a means to adjust supplemental back relative to a...

297253, 297460, 297219, A47C 740

Patent

active

040477576

ABSTRACT:
A seating unit with a flexible seat back having an upper portion separated into two halves positioned to support a user's back at opposite sides of his spine, and with these halves being mounted for resiliently resisted rearward deflection relative to one another in order to accommodate movement of the user's body, and with a slit or the like being provided at the center of the back between these halves to enable projection of the user's spine rearwardly beyond adjacent portions of the user's back for optimum comfort at all times. The back structure may be connected to a generally horizontal seat element, which may be bifurcated to have two relatively movable forwardly projecting portions. The device may also have an anchoring portion for detachable connection to a cushion of an upholstered seat on which the unit is to be used.

REFERENCES:
patent: 582144 (1897-05-01), Moore
patent: 1011026 (1911-12-01), Carpenter
patent: 2280231 (1942-04-01), Gulley
patent: 2663359 (1953-12-01), Wood
patent: 2833341 (1958-05-01), Bornstein
patent: 3170727 (1965-02-01), Peterson
patent: 3197255 (1965-07-01), Caudill
patent: 3716270 (1973-02-01), Frazier
patent: 3774960 (1973-11-01), Blodee
patent: 3883176 (1975-05-01), Morton
patent: D166397 (1952-04-01), Komai

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