| 摘要 |
A suitcase has an interior to receive a seat. The seat has a frame disposed on the upper periphery of the suitcase. The frame has a generally U-shaped groove. Two opposite flanges are protruded inwardly in the two sides of the frame. A retractable handle has a grip and two parallel inner pipes. The inner periphery of the inner pipe has a rail to receive a rack. A generally U-shaped top cover plate covers the seat. A chamber is formed in the seat. A positioning plate is disposed beneath the notch transversely, and an L-shaped rail plate is disposed above the notch transversely. Two inserting blocks are inserted in the notches. The outer end of each block has rectangular dents to match the rectangular teeth of the rack. A button is disposed between two rail plates. A front cover plate covers the front opening of the seat.
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