| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a screen that properly keeps the flatness of a projection surface during use and improves the conveyability during non-use. Ž<P>SOLUTION: This screen 1 includes a rectangular screen body; and a frame member having a plurality of arm sections connected so as to be capable of bending and stretching by a plurality of hinges 52; a rectangular frame shape, in a developed state where the plurality of arm sections are stretched and the screen body installed in the frame. In the hinges 52, a first linking section 551 and a second linking section 552 are turnably interconnected about a turning shaft 553. Respective linking sections 551 and 552 have a first engagement projection 5513, that is disposed on the first linking section 551 and projects turnably; a first engaging recess 5521C that is disposed on the second linking section 552 and engages with the first engagement projection 5513 by turning of the linking sections 551 and 552; and a first locking mechanism 57V1 for keeping the developed state by engagement of the first engagement projection 5513 with the first engaging recess 5521C. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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