Recliner chair

Claim 1

A chair, comprising a seat support; a seat portion connected to said seat support; a back portion connected to said seat portion, said seat portion with said back portion being swingable from a normal sitting position to a backward-leaning rest position and backwards from the backward-leaning rest position to the sitting position, said seat portion including a forward part rigidly connected to said seat support and a rear part pivotally connected to said forward part and adapted to pivot in a downward direction about a first horizontal pivot axis; said back portion including an upper part and a lower part pivotally connected to said upper part and adapted to pivot in respect thereto about a second horizontal pivot axis, said lower part pivotally connected with said rear part of said seat portion and together pivotable about said first horizontal axis; and at least one quadrangular linkage means interconnected between said upper part of the back portion and said seat portion, said linkage means including a first arm and a second arm which extend substantially horizontally when the chair is in said sitting position, said second arm being rigidly connected to said seat support, a forward third arm pivotally connected to said first arm at a first pivoting connection and pivotally connected to said second arm at a third pivoting connection, and a rear fourth arm pivotally connected to said first arm at a second pivoting connection and pivotally connected to said second arm at a fourth pivoting connection; said first arm having a rear end rigidly connected to a lower end of said upper part of the back portion, said second arm having a forward end and said third arm having a lower end which are pivotally connected with respect to each other and to said forward part of the seat portion at said third pivoting connection near said first horizontal pivot axis, said second arm being a rigid carrier for said forward third arm and a pivot point for said rear fourth arm.