| 摘要 |
A seat device includes a seat member having a seat back for supporting a user, one or more fastening belts for fastening the user in the seat member, and a retaining device for retaining the user, particularly the baby in the seat member. The retaining device includes a U-shaped structure pivotally secured to the seat member and movable to a horizontal position for retaining the user in the seat member. The retaining device may include two arms pivotally secured to the seat member, and a bar pivotally secured to one of the arms for forming the U-shape structure.
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