| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a screen lifting device for a roll blind, which enhances the appearance of a roll blind while facilitating lifting of a screen to desired height. <P>SOLUTION: The screen lifting device includes a brake device 10 which holds a screen 5 unwound from a winding shaft 4 at desired height on the base of the lowering operation with a weight bar 6, and holds the screen 5 wound on the winding shaft 4 at desired height based on the energizing force of a spring motor 7 on the base of the hoisting operation with the weight bar 6. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
