| 摘要 |
PROBLEM TO BE SOLVED: To provide a building entrance opening/closing device provided with a ventilating opening/closing member prevented from separating due to wind pressure. SOLUTION: The building entrance opening/closing device comprises an opening/closing member 4 formed into a strip which is flexible and can be rolled, left/right guiding members 12 having grooves 12a for guiding the side ends of the ventilating opening/closing member 4, an intermediate folding section 21a of the right side end constituted of an intermediate member 21 or the like provided between the lower side end and the upper side end of the ventilating opening/closing member 4 and provided between the right side end of the ventilating opening/closing member 4 and the left side end of the ventilating opening/closing member 4 and formed by folding the right side end of the intermediate member 21, and a first folding section A provided on the right side guiding member 12 along the longitudinal direction of the guide member 12 and folded toward the groove 12a of the right side guiding member 12. The end of the first folding section A and the end of the intermediate folding section 21a of the right side end are, respectively opposed to the interior of the intermediate folding section 21a of the right side end and the groove of the first folding section A. The left side is similarly constituted. COPYRIGHT: (C)2006,JPO&NCIPI
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