| US 7,559,607 B2 | ||
| Adjustable ergonomic back for a seat | ||
| Bruno Archambault, Sherbrooke (Canada); Maxime Laplante, Sherbrooke (Canada); Michael Proulx, Sherbrooke (Canada); Claude Thérer, Ascot (Canada); André Albert, Sherbrooke (Canada); Gilles Bernat, Sherbrooke (Canada); Pierre Larivière, Sherbrooke (Canada); and Germain Bélanger, St-Germain-de-Grantham (Canada) | ||
| Assigned to Baultar I.D. Inc., Windsor, QC (Canada) | ||
| Filed on Dec. 20, 2005, as Appl. No. 11/311,424. | ||
| Claims priority of application No. 2491299 (CA), filed on Dec. 20, 2004. | ||
| Prior Publication US 2006/0152062 A1, Jul. 13, 2006 | ||
| Int. Cl. A47C 3/00 (2006.01); A47C 7/14 (2006.01) | ||
| U.S. Cl. 297—284.7 [297/284.3; 297/284.6] | 20 Claims |
| 1. An adjustable ergonomic back for a seat comprising:
a) a plurality of back cushions, each cushion corresponding to at least one adjustment area;
b) a structural shell having a plurality of voids therein;
c) a plurality of thin flexible elements located between the back cushions and the structural shell, each flexible element
being attached to the structural shell and having a front surface and a back surface, the front surface being in contact with
a respective adjustment area corresponding to one of the plurality of back cushions; and
d) a plurality of actuators located between the flexible elements and the structural shell, each of said plurality of actuators
being in contact with one of said respective back surfaces of the flexible elements and exerting a pressure on said one back
surface,
wherein the at least one adjustment area includes a lumbar support area and the structural shell is slideably mounted on a
support structure through a plurality of vertical guide tracks and a height adjustment actuator is attached to the structural
shell for displacement of the shell with respect to the support structure along a vertical direction and for a vertical adjustment
of the lumbar support area.
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