To enhance operability in a drawing plate structure for a seat back.
The drawing plate structure for the seat back is provided with a storage body 3 provided on a back surface 2a of a seat back 2 turnably in a longitudinal direction making a lower end as a turning center and movable to a laid position where an upper part is along the back surface 2a of the seat back 2 and a separate position where it is separated from the back surface 2a of the seat back 2; and a drawing plate 5 movable to a storage position where it is stored in the storage body 3, a drawn position where it is drawn from the storage body 3 and a usage position where it is turned after drawn from the storage body 3 and becomes in the approximately horizontal state. When the drawing plate 5 is positioned at the drawn position, the turning of the storage body 3 relative to the seat back 2 is suppressed by a lock mechanism 7.
SATO TETSUHISA
Iwa Saki Kokuni
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
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