Headrest device for vehicle seat
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United States of America Patent
Stats
-
Dec 18, 2007
Grant Date -
May 25, 2006
app pub date -
Nov 22, 2004
filing date -
Nov 22, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A headrest device of a vertically movable type including a headrest body, a stay element and a lock mechanism provided on a seat back of a seat. The lock mechanism includes a lock plate movably disposed therein and a biasing means for normally biasing said lock plate in a locking direction. The stay element is slidably connected with the lock mechanism so as to be vertically movable and has a non-linearly profiled surface region defined in a surface portion thereof with which said lock plate is biased by said biasing means to frictional contact. Such formation of non-linearly profiled surface region is effective in preventing a friction noise from being generated between the lock plate and the stay element.
First Claim
Family
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Cited Art Landscape
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