Seat having cushion height and recline adjustment mechanisms

Details Seat having cushion height and recline adjustment mechanisms Seat having cushion height and recline adjustment mechanisms

2008-06-24

2008-06-24

McPartlin, Sarah B (Department: 3636)

Chairs and seats

Movable back

Tiltable

C297S301200, C297S344160, C297S344130

Reexamination Certificate

active

07390062

ABSTRACT:
A seat includes a base portion and an upright portion pivotable with respect to the base portion. The seat includes a reclining mechanism that includes first and second toothed members that are selectively engaged and disengaged to resist and permit, respectively, the angle of the upright portion with respect to the base portion. The first and second toothed members are engaged and disengaged through rotation of a cam mechanism. The seat also includes a bottom seat cushion height adjustment mechanism that permits raising and lowering of the bottom seat cushion with respect to a base portion of the frame. The bottom seat cushion height adjustment mechanism includes a slidable member that is slidable with respect to the base frame, and a plurality of cams that convert linear motion of the slidable member into vertical movement of the bottom seat cushion. A single biasing member biases the upright portion and bottom seat cushion toward their respective default positions in the absence of an overwhelming opposing force from an operator seated in the seat. The seat includes a seat belt assembly having all points mounted to the frame of the seat frame, and not to the vehicle in which the seat is installed. The biasing member is not a structural element of the seat, and all stress transferred to the seat through the seat belt assembly is borne by the seat frame and the first and second toothed members of the reclining mechanism.

REFERENCES:
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Porter Group, LLC, Spinlok®, http://www.portergroupllc.com/solutions/spinlok.asp, published prior to Jul. 6, 2004.
New! Drivers Safety Seat, The C.E. White Co., published prior to Jul. 6, 2004, New Washington, OH.

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