| 摘要 |
PROBLEM TO BE SOLVED: To sufficiently exhibit such a function that a sheet for fire protection and flame proofing such as a smokeproof sheet shields smoke and the like when necessary by eliminating or minimizing the abrasion of the sheet. SOLUTION: When an opening/closing body means is normally opened and closed, a sheet member is set at a position where the sheet member is not brought into contact with the opening/closing body means, and when predetermined requirements in which a flameproof signal or an emergency closing signal occurs or a flame occurs are satisfied, the sheet member is brought into contact with the opening/closing body means to close the gap between an entrance part and the opening/closing body means. Specifically, a hinge and a thermally deformable member are used, a hinge and a solenoid are used, a sheet member in the bent state is held by the thermally deformable member, the bent sheet member is held by the solenoid, or the sheet member after the contact is returned to the original state. COPYRIGHT: (C)2011,JPO&INPIT |
