Title:
FIRE SHUTTER
Document Type and Number:
Japanese Patent JP3677615
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a fire shutter allowing a person to escape by oneself even if nipped between a shutter curtain and a floor surface by providing a shutter curtain for opening and closing an opening part consisting of a fireproofing sheet occupying the surface area to a prescribed height in the full close of the opening part and a metallic slut occupying the surface area other than this.
SOLUTION: A shutter curtain 3 is regularly wound on a winding shaft and housed in the ceiling above an opening part. When a fire occurs, an automatic closing device is operated according to the fire generation signal from a sensing means, and the shutter curtain 3 is automatically lowered by the weight of a seat plate 40 provided in the lower end while both the lateral end parts are guided by guide rails 5. In this case, the shutter curtain 3 consists of an upper part formed of a steel slat 3a and a lower part formed of a fireproofing sheet 7. The seat plate 40 is arranged on the upper end of the fireproofing sheet 7, and the upper end part is fixed to the steel slat 3a through a laterally extending flat bar 8.
Inventors:
Kazushige Ueda
Norihisa Isemura
Norihisa Isemura
Application Number:
JP13137798A
Publication Date:
August 03, 2005
Filing Date:
April 24, 1998
Export Citation:
Assignee:
Sanwa Shutter Corporation
International Classes:
E06B9/02; A62C2/06; E06B9/17; E06B9/58; (IPC1-7): A62C2/06; E06B9/02; E06B9/17; E06B9/58
Domestic Patent References:
| JP10234877A |
Attorney, Agent or Firm:
Shigeru Inaba
Shoji Inaba
Shoji Inaba