| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem wherein elevator landings and a hoist way are insulated from each other to prevent expansion of damage through the hoist way due to the structure that the flame and the smoke are transmitted from a fire-generated floor through the hoist way when a fire is generated in a building. SOLUTION: This smokeproof door device has a landing sill 5 having a groove at a part facing to a door 1 of the elevator landing, a first bag body 8B provided in the groove and to be inflated by filling the fluid inside thereof to close a clearance with the facing door 1, and a fluid supply means 10 for supplying the fluid into the bag body. A guide means for guiding a lower part of the door is provided at a position displaced from a range, wherein the door and the first bag body face to each other when opening/closing the door 1 of the elevator landing 1. With this structure, the landings and the hoist way are securely insulated from each other to cut the smoke. COPYRIGHT: (C)2004,JPO&NCIPI
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