To surely prevent the collapse of the center part of a film unit.

A case 35 is constituted of a case body 40 and a back cover 41. The case body 40 is provided with an exposure aperture 42 on its front surfaces and an ejection port 44 on its upper surface. Then, an aperture 46 is formed on the back surface of the case body 40 and circular-arc-shaped notches are formed on both side surface continuously to the aperture 46. The cover 41 is formed so that it may cover the back surface of the case body 40 and its cross section may be circular-arc-shaped. The cover 41 is provided with an aperture 50 in the center. A front cover 36 and a rear cover 37 are laminated on the outside of the laminated film units 14 and housed in the case 35. The rear cover 37 on the cover 41 side is formed so that its cross section may be circular-arc-shaped, and formed so that the height of this circular arc may be larger than the height of the ejection port 44.