Apparatus and method for lumbar support structure

Chairs and seats – Bottom or back – Cushioned

Reexamination Certificate

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Details

C267S133000, C297S284400, C297S452300

Reexamination Certificate

active

07090301

ABSTRACT:
The invention is a lumbar support structure adapted to attach to a frame of a seat. An upper support bar and a lower support bar attach to the frame of the seat. A plurality of vertical springwires connect to the support bars. Spacers are used to maintain a desired distance between each of the springwires. A lumbar portion of the springwires extends away from a plane containing the support bars. By utilizing different diameter springwires and different shaped lumbar portions a saddle support distribution is created. The saddle support distribution allows the structure to customize the response to an occupant sitting in the seat.

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patent: 5988745 (1999-11-01), Deceuninck
patent: 6152531 (2000-11-01), Deceuninck
patent: 0 128 407 (1987-07-01), None
patent: 2 342 287 (2000-04-01), None

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