| 摘要 |
<p>PROBLEM TO BE SOLVED: To make expandable a housing part at need by providing a fastening part for keeping the contracted state of a bellow-like extending/contracting part at a pair of side wall parts standing face to face. SOLUTION: A hard side wall part 1 consists of a side wall forming part 10 formed in a tray-shape with a prescribed capacity and a frame part 11. A soft side wall part 2 is constituted of a foldable material and provided with the side-wall forming part 10 and an extending/contracting part 3 standing from the four surrounding sides of the part 10 and the open tip edge of the part 3 is fixed to the frame part 11. A bellow-like part is formed at the part 3 and can be extended/contracted in the direction to its side. Mutually fittable fasteners 4 are sewn to the surrounding of the part 2 and the open edge of the part 3, namely a connection part with the part 11, to mutually fasten the parts 4 to keep the part 3 in the contracted state so that one face is used as a bag made of soft material. In a case that baggage is increased, the parts 4 are separated to extend the part 3 to increase the capacity of the housing part.</p> |
