Six bar mechanism and control for chair

Details Six bar mechanism and control for chair Six bar mechanism and control for chair

A - Human Necessities

47

C

A47C 1/032 (2006.01)

Patent

CA 2718583

A chair according to embodiments of the present invention includes a base; a first linkage pivotably coupled to the base, a seat pivotably coupled to the first linkage, a second linkage pivotably coupled to the seat and pivotably coupled to the base, a back comprising a substantially upright portion and an attachment portion, the attachment portion pivotably coupled to the base at a first pivot point, and a third linkage pivotably coupled to the back at a second pivot point and pivotably coupled to the second linkage, wherein the second pivot point is on the attachment portion between the first pivot point and the substantially upright portion.

La présente invention concerne une chaise comprenant une base ; une première articulation couplée de manière pivotante à la base, un siège couplé de manière pivotante à la première articulation, une deuxième articulation couplée de manière pivotante au siège et couplée de manière pivotante à la base, un dossier comprenant une portion sensiblement verticale et une portion d'attache, la portion d'attache étant couplée de manière pivotante à la base en un premier point pivot, et une troisième articulation couplée de manière pivotante au dossier en un second point pivot et couplée de manière pivotante à la deuxième articulation, le second point pivot étant sur la portion d'attache entre le premier point pivot et la portion sensiblement verticale.

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