Seating furniture component or the like with a coupled backrest and seat adjustment
August 26, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3337266 3572829 TV chair with double pillow case and two-step ottoman Sliding chair Chair type furniture Seat, especially work seat, with several positions Sitting furniture, in particular swivel chair Adjustable rotation chair Synchronous adjusting device for office chairs or the like Seat with recline linkage Patent #: 5636898 InventorsAssigneeApplicationNo. 917550 filed on 08/26/1997US Classes:297/316, Interconnected with back for relative concurrent movement297/300.1, Back and seat adjust simultaneously297/300.2, Back tilts while seat inclination adjusts297/300.4, Torsion bar or torsion spring297/317, Bottom slides forwardly while tilting297/322, Bottom tilts with concurrent horizontal movement297/340Interconnected with back for relative concurrent movementExaminersPrimary: Chen, Jose V.Assistant: White, Rodney B. Attorney, Agent or FirmForeign Patent References
International ClassesA47C 001/02B60N 002/02 Foreign Application Priority Data1996-09-06 DEAbstractA seating furniture component with coupled backrest and seat adjustment, having a support chassis (1), a backrest (2) and a seat (3) adjustably attached to the support chassis (1), with the backrest (2) and seat (3) being movably joined to one another in the area of the vertex of the angle between them, the backrest (2) being coupled to a pivot axis (4) on the support chassis (1) at a distance above the vertex of the angle, and the seat (3) being movably attached to the support chassis (1) near the front edge of the seat (3) by a support mechanism (5, 6). The backrest (2) executes a superimposed tiltback and lowering motion from a sitting position into a reclining position, relative to the support chassis (1), while the seat (3) executes a slight superimposed sliding and lifting motion in a synchronized manner. The connection of the backrest (2) to the seat (3), in one embodiment, has two connecting axes on each side which run in two slotted cranks as connecting axis and slotted crank pairs, a first of the connecting axis and slotted crank pairs being located on the rear edge of seat (3), the backrest (2) extending to the rear edge of the seat (3), and the second connecting axis and slotted crank pair being located on the rear edge of seat (3) at a distance above the first pair.Field of SearchInterconnected with back for relative concurrent movementBottom slides forwardly while tilting Bottom tilts with concurrent horizontal movement Back and seat adjust simultaneously Back tilts while seat inclination adjusts Torsion bar or torsion spring Interconnected with back for relative concurrent movement | |
