LUMBAR SUPPORT DEVICE
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United States of America Patent
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-
N/A
Issued Date -
Oct 29, 2015
app pub date -
Nov 1, 2013
filing date -
Nov 7, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An object of the present invention is to provide a lumbar support device in which a driving unit is not to be large. The lumbar support device includes: a seat back frame (7) that has horizontal portions (7j, 7k) extending in a horizontal direction and is provided on the seat back for supporting a back of a seated person; a curved plate (23) that has hinge portions (23b) provided at one end portion so as to be rotatably engaged with the horizontal portions (7j, 7k); and a driving mechanism (9) which is provided on the seat back frame (7) and is connected to the other end portion of the curved plate (23) and which makes the other end portion approach and separate from the one end portion to change the degree of curvature of the curved plate (23).
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Family
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