| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem that a marketed child seat with no backrest has the advantages that the child seat inexpensive and a large space is not required in a cabin, but the posture of a child becomes instable and the instability becomes remarkable during his sleeping, in particular. SOLUTION: The posture of the child is stabilized without requiring the large space by jointly using the marketed child seat with no backrest and the objective backrest cushion for a child. COPYRIGHT: (C)2003,JPO
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