| 摘要 |
PROBLEM TO BE SOLVED: To make possible easy assembly and replacement work and high-precision aligning of a support shaft with respect to a shaft body when assembling is performed. SOLUTION: The structure of a take-up shaft for a shutter is provided with a cylindrical take-up shaft body 32 for the shutter and a pair of support shafts 34 which is fixed to the center of the shaft body 32 at both ends of the shaft body 32. The shaft body 32 is provided with an outer cylinder 36 and an inner cylinder 40. The outer cylinder 36 becomes a twisting part of a shutter curtain 26, and the inner cylinder 40, which is placed on the axis of the outer cylinder 36, is fixed in the center of a radial rib 38. One end of the radial rib 38 is fixed on the inner side of the outer cylinder 36, and the tip of the support shaft 34 can be projected from the end of the shaft body 32 in a state where the base part of the support shaft 34 is inserted and fixed to the inner cylinder 40. COPYRIGHT: (C)2010,JPO&INPIT
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