Chairs and seats – Movable bottom – Interconnected with back for relative concurrent movement
Patent
1998-12-18
2000-02-29
Brown, Peter R.
Chairs and seats
Movable bottom
Interconnected with back for relative concurrent movement
297320, 29736214, B60N 222
Patent
active
060300434
ABSTRACT:
A motor vehicle seat includes a base, a seat portion having a forward end coupled to the base at a longitudinally adjustable pivot location, and a back rest. A tilt adjustment device has a first hinge portion secured relative to the back rest, and a second hinge portion whose angular position is adjustable relative to the first hinge portion. An articulation lever extends from the second hinge portion and is pivotably secured to the seat portion. The distal end of the articulation lever is pivotably coupled to the base at a longitudinally adjustable pivot location. In this manner, the tilt position of said back rest may be adjusted by changing the angle of the articulation lever relative to the seat portion pivot, and may be further adjusted independent of the articulation lever by actuating the tilt adjustment device. Preferably, the seat is axially adjustable relative to the base, and a coupling mechanism, such as a spindle/spindle nut assembly, moves the seat and articulation lever distal end at unequal rates, so that, as the seat moves backward and forward, the tilt angle of the back rest automatically changes.
REFERENCES:
patent: 4505514 (1985-03-01), Stockel et al.
patent: 4616874 (1986-10-01), Pietsch et al.
patent: 5203608 (1993-04-01), Tame
patent: 5269588 (1993-12-01), Kunz et al.
patent: 5884970 (1999-03-01), Howard
Bertrand Faure Sitztechnik GmbH & Co. KG
Brown Peter R.
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