Chair with hinged backrest

Details Chair with hinged backrest Chair with hinged backrest

1987-05-18

1989-01-10

Dorner, Kenneth J.

Chairs and seats

Movable bottom

Interconnected with back for relative concurrent movement

297300, 297316, A47C 320

Patent

active

047969520

ABSTRACT:
The chair is provided with a seat connected to a support structure of the chair by means of one or more hinged parallelograms consisting of pairs of tie-rods hinged to the seat and to the support structure. The structure of the chair backrest is integral with at least one of the tie-rods so as to allow the seat to be raised when the backrest is pushed backwards. Provision is also made for elastic means which are designed to counteract the backwards movement of the backrest.

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