Seatback spring device for automobile
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 6, 1987
Grant Date -
N/A
app pub date -
Apr 24, 1986
filing date -
Apr 26, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A seatback spring device for automobiles comprising at least three spring elements of the wave-like form, any one of the spring elements being continuous in a basically longitudinal direction on a substantially common plane, the spring elements being laterally juxtaposed and directly or indirectly linked with a seatback frame at the upper and lower ends thereof, wherein the spring elements at both the sides are disposed so as to form a pair of forwardly flexed or curved planes, and each of the spring element(s) at the central area is provided with a protrusion protruding forwardly at a level corresponding to the waist of an occupant. The device fits to the waist of the occupant to relieve the burden upon waist and lumbar and secure the occupant against lateral swings and vibrations.
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Family
International Classification(s)
Cited Art Landscape
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