| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a projection screen desktop device configured so that a film-like projection screen which is made foldable without leaving seams thereon may be stretched in plane when in use. <P>SOLUTION: In the projection screen desktop device, both ends 201, 201 of a projection screen 20 are attached to both ends 101, 101 of a sheet-like object or a box-shaped object 10 for a document binding file (hereinafter, referred to as a binder-like object). In the case of folding the projection screen, the screen is made foldable without leaving seams thereon, and when in use, the projection screen is stretched in plane. A tension member 30 is disposed on the folding part 11 of the binder-like object, and in the case of stretching the projection screen in plane, the tension member is rotated so as to open both side walls 1011, 1011 of the binder-like object, on the other hand, in the case of folding the projection screen, the tension member may be stored in the folding part. <P>COPYRIGHT: (C)2012,JPO&INPIT |
