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US 10,470,574 B2Granted
Chair having synchronized backrest and seat movements
AssigneeSteelcase Inc.
InventorJean-Marc Schneider
Life of this patent
Estimating the term…
Abstract
A chair includes a seat and a backrest connected to a leg assembly. The front part of the seat is mounted on the leg assembly via a pivot link about an axis. The backrest is connected to the seat by a flexible intermediate part fixed to the leg assembly in the vicinity of the pivot of the seat for the purpose of a pivoting movement of the intermediate part by elastic deformation about an axis. The rear part of the seat is supported by the intermediate part, for example with at least one coupling element.
Claims23
A chair comprising:
- a seat and a backrest pivotally connected to a leg assembly, wherein a front part of the seat distal with respect to the backrest is pivotally mounted on the leg assembly about a first pivot axis;
- and
- wherein the backrest is connected to the leg assembly with a flexible intermediate part extending under the seat, wherein the intermediate part is fixed to the leg assembly for the purpose of a pivoting movement of the intermediate part by elastic deformation of the intermediate part about a second pivot axis parallel to the first pivot axis of the seat;
- and
- at least one coupling element disposed between and engaged with a rear part of the seat proximal with respect to the backrest and the intermediate part.
2 more elements
A chair comprising:
- a frame;
- a seat comprising a front portion pivotally connected to the frame about a first pivot axis and a rear portion spaced rearwardly from the front portion;
- a flexible intermediate part underlying the seat and fixedly connected to the frame, wherein the rear portion of the seat is supported by the intermediate part, wherein the intermediate part is elastically deformable from a nominal position to a deformed position, and wherein the seat is moveable from an at rest position to a rear tilt position as the intermediate part is deformed from the nominal position to the deformed position;
- and
- a backrest connected to the intermediate part.
2 more elements
Dependencies are inferred from the claim text.