| 摘要 |
PCT No. PCT/AT92/00134 Sec. 371 Date Dec. 10, 1993 Sec. 102(e) Date Dec. 10, 1993 PCT Filed Oct. 28, 1992 PCT Pub. No. WO93/10325 PCT Pub. Date May 27, 1993.Roll-down shutter with a rotating, self-locking winding shaft with coilable shutter armor made of linked interconnected shutter elements, whereby the top-most shutter element is attached to the winding shaft. In order to make an unauthorized separation of the shutters from the winding shaft practically impossible, the top-most shutter element is bound closed-shape with the winding shaft.
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