BACK SUPPORT FOR SEATING UNIT

A back support includes a base, a seat, and a back frame pivoted to the base. The seating unit has a flexible back (i.e., back shell) supported on the back frame and having stiff upper and lower sections connected by a forwardly protruding flexible lumbar section for providing lumbar support to a se...

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Bibliographische Detailangaben
Hauptverfasser:	HEIDMANN KURT R, ROOSSIEN CHARLES P, DAMMERMANN ARNOLD B, PETERSON GORDON J, KNOBLOCK GLENN A, TEPPO DAVID S, DEKRAKER LARRY, KNOBLOCK DARYL
Format:	Patent
Sprache:	eng
Schlagworte:	BEDS CHAIRS COFFEE MILLS DOMESTIC ARTICLES OR APPLIANCES FURNITURE HUMAN NECESSITIES SOFAS SPICE MILLS SUCTION CLEANERS IN GENERAL
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Beschreibung
Zusammenfassung:	A back support includes a base, a seat, and a back frame pivoted to the base. The seating unit has a flexible back (i.e., back shell) supported on the back frame and having stiff upper and lower sections connected by a forwardly protruding flexible lumbar section for providing lumbar support to a seated user. A spring mechanism is connected to the back frame and to a center lower edge of the flexible back. The spring mechanism biases the flexible back to bias the lumbar toward a forwardly protruding shape to provide optimal lumbar support when in the upright position and also during recline of the seated user.