Clutch mechanism for vehicle seat

Chairs and seats – Crash seat – Force-absorbing means incorporated into headrest area

Reexamination Certificate

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Reexamination Certificate

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08029057

ABSTRACT:
A coupling arm presses a first or second arm of a swing member, connected to a frame of a seat back, by an occupant's backrest load caused by a rear-end collision of a vehicle to pivotally move the swing member. The first arm receives a first backrest load via the coupling arm and the second arm receives a second backrest load, which is larger than the first backrest load, via the coupling arm. The first and second arms are set so that a maximum pivot amount of the swing member when the first arm is pressed to pivot is equal to a maximum pivot amount of the swing member when the second arm is pressed to pivot.

REFERENCES:
patent: 7484798 (2009-02-01), Yamaguchi
patent: 7673938 (2010-03-01), Yamaguchi et al.
patent: 2006/0006709 (2006-01-01), Uno et al.
patent: 2008/0129093 (2008-06-01), Kim
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patent: 2010/0007183 (2010-01-01), Akutsu
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patent: 2010/0060049 (2010-03-01), Otsuka
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patent: 2010/0187874 (2010-07-01), Matsui
patent: 2010/0187875 (2010-07-01), Sasaki et al.
patent: 2010/0270834 (2010-10-01), Niitsuma
patent: 2010/0270835 (2010-10-01), Nitsuma
patent: 2010/0295348 (2010-11-01), Takayasu et al.
patent: 2011/0012401 (2011-01-01), Omori
patent: 2011/0018317 (2011-01-01), Omori
patent: 2011/0074191 (2011-03-01), Omori
patent: 2005-95237 (2005-04-01), None
English language Abstract of JP 2005-95237, Apr. 14, 2005.

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