| 摘要 |
PROBLEM TO BE SOLVED: To provide a smoke shutting-off sliding door device capable of surely drawing a smoke shutting-off sliding door close to a sliding door frame and letting it adhere closely to the frame in an intermediate part in the vertical direction. SOLUTION: An intermediate part drawing means 11 is provided in the intermediate part in the vertical direction of the smoke shutting-off sliding door 7 stored in a door storage case 6. The intermediate part drawing means 11 is provided with a swing hook 34 capable of coming in and out from the inside of the smoke shutting-off sliding door 7 to the outside. The swing hook 34 comes in and out by a traveling case 45 moving in a drawing case 38 by turn of an adjuster bolt 44 and protrudes when stored in the door storage case 6. It can be engaged with an intermediate part hook receiver 35 in a sliding door longitudinal frame 19 while it protrudes. When the smoke shutting-off sliding door 7 is closed in the case of a fire, the intermediate part of the smoke shutting-off sliding door 7 is drawn close to the sliding door longitudinal frame 19 and adheres closely to the frame by engagement of the swing hook 34 and the intermediate part hook receiver 35. COPYRIGHT: (C)2004,JPO
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