Piece of seating furniture

Details Piece of seating furniture Piece of seating furniture

1988-01-07

1990-10-16

Zugel, Francis K.

Chairs and seats

Back movement resiliently opposed in operating position

Back and seat adjust simultaneously

297301, 297302, A47C 300

Patent

active

049629620

ABSTRACT:
The underlying object is to create a piece of seating furniture with which an automatic, bodyweight-dependent setting of the restoring force of the inclination mechanism and of the back part mechanism takes place.
According to the invention, the seat part (2) is mounted on the seat carrier (5) vertically adjustably by means of a parallelogram linkage arrangement (9, 10) against the pretensioning force of a spring element (16), furthermore the back carrier (4) is mounted pivotally on the seat carrir (5), a pivoting of the back carrier (4) taking place against the pretensioning force of the spring element (16).
The piece of seating furniture according to the invention can be used, for example, as office furniture, as a seat in a motor vehicle or in the domestic sector.

REFERENCES:
patent: 1909018 (1933-05-01), Sengpiel
patent: 2321385 (1943-06-01), Herold
patent: 2374350 (1945-04-01), Herold
patent: 2471024 (1949-05-01), Cramer
patent: 2619153 (1952-11-01), Van Oosclen
patent: 3034828 (1962-05-01), Kuriliara
patent: 4629249 (1986-12-01), Yamaguchi
patent: 4682814 (1987-07-01), Hansen
patent: 4709962 (1987-12-01), Steinmann
patent: 4761033 (1988-08-01), Lanuzzi et al.
patent: 4779925 (1988-10-01), Heinzel

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