| 摘要 |
An automatic simultaneous shutting system for a plurality of fire doors is provided to reduce the manufacturing cost effectively by saving capacity of a storage battery and adopting a single motor, and to open all the fire doors by a simple manual operation in preparation for blackout. An automatic simultaneous shutting system for a plurality of fire doors(83) comprises an individual fire door fixing member(60), an individual wall reclamation locking member, a simultaneous release member, and a driving unit. The individual fire door fixing member is provided to each fire door of the simultaneous shutting system. The individual wall reclamation locking member is reclaimed in a wall(85) corresponding to the individual fire door fixing member. The simultaneous release member releases a plurality of the individual fire door fixing members from a plurality of the individual wall reclamation locking members at the same time, while linearly moving up and down within a predetermined range. The driving unit drives the simultaneous release member. |
