| 摘要 |
PROBLEM TO BE SOLVED: To prevent an excess part from being generated in a blind and being swollen out to the outside of an opening part of a roll blind main body when the blind is would by providing a large diameter part winding a winding port on a rotary shaft and expanding successively from a small diameter part. SOLUTION: In a side roll blind constituted of a freely rotatable rotary shaft 3 which fixes a base side of a blind 2 and is would on a body periphery and a coil spring which is internally mounted on the rotary shaft 3 and imparts rotary force, a triangular or trapezoidal winding portion 2a is formed on the base side of the blind 2 and a large diameter part 3b winding the winding part 2a on the rotary shaft 3 and successively expanding from a small diameter part 3a is provided. By winding the blind 2 on an outer periphery of a substantially tapered rotary shaft 3 by winding the blind 2, also the blind 2 at a deformed portion in which an excess portion is swollen out is wound in a roll blind main body.
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