| 摘要 |
<P>PROBLEM TO BE SOLVED: To realize the prevention of the buckling and the automatic reduction in the bulk of a toner storing container used in an image forming apparatus such as a copying machine and consisting of flexible material. <P>SOLUTION: The toner container 10 has a structure that a plurality of film materials are welded at a welding part 6, and a side surface part 4 is formed of a pair of film materials 4a and 4b, whose edges are welded to form a folded part 11 in order to be set in shape folded like a V-shaped bellows. The thickness of the film material forming a front surface part 2 and a back surface part 3 is set to be equal to or above the thickness of the film materials forming the surface part 4. When the toner 5 is put in the container 10 having such structure, the folded part 11 becomes a support to prevent the buckling, and when the toner stored in the container is decreased, the bulk of the container 10 is easily automatically reduced because a pair of film materials 4a and 4b has a large tendency to return to an initial state. <P>COPYRIGHT: (C)2003,JPO |
