Lumbar support device for vehicle seat

Chairs and seats – Bottom or back with means to alter contour

Patent

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Details

297312, A47C 300

Patent

active

050112236

ABSTRACT:
A lumbar support device for a vehicle seat, in which a lumbar support force is adjusted in a fine, stepless way at a desired degree. Springs are disposed between a slider and a arm having a lumbar support plate so as to give a force to the lumbar support plate. The slider is threadedly engaged with a drive shaft in a manner being movable thereon by operation of a handle fixed to the drive shaft.

REFERENCES:
patent: 4019777 (1977-04-01), Hayashi

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