Title:
FIRE-PREVENTIVE SCREEN DEVICE
Document Type and Number:
Japanese Patent JP3658492
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To simplify a fire-preventive screen device and improve fire resistance, heat-insulating properties, flame retardancy and smoke protection thereof.
SOLUTION: Brackets 13 are installed to the left and the right of the upper section of an opening section, lifting-lowering sprockets 18 are mounted on the left-right brackets 13 while the lifting-lowering brackets 18 can be driven by open-close machines 21, and housing rails 24 are set up in the tangential direction of the lifting-lowering sprockets 18. Coupling chains engaged with the lifting-lowering sprockets 18 are latched at the edge of a fire-preventive screen 27 while housing rollers 32 are fitted rotatably as being projected from the coupling chains, the housing rollers 32 can be rolled on the housing rails 24 while the upper end of the fire-preventive screen 27 is engaged with the bracket 13 sides, the coupling chains are elevated and brought down by turning the lifting-lowering sprockets 18, and the fire-preventive screen 27 is lifted and lowered. The elevated fire-preventive screen 27 is passed through the lifting- lowering sprockets 18 and folded up, and housed under the state, in which the screen 27 is hung down from the housing rails.
Inventors:
Koichi Kondo
Toshihiko Ariyama
Toru Uetake
Yasunobu Oshima
Naoto Kumagai
Noriaki Iwase
Toshio Shimizu
Toshihiko Ariyama
Toru Uetake
Yasunobu Oshima
Naoto Kumagai
Noriaki Iwase
Toshio Shimizu
Application Number:
JP26817397A
Publication Date:
June 08, 2005
Filing Date:
September 12, 1997
Export Citation:
Assignee:
Bunka Shutter Co., Ltd.
International Classes:
E06B9/06; A62C2/06; A62C2/10; (IPC1-7): E06B9/06; A62C2/06; A62C2/10
Domestic Patent References:
| JP63025793U | ||||
| JP61026889U | ||||
| JP54020538U | ||||
| JP53003116U | ||||
| JP9041847A | ||||
| JP5086775A | ||||
| JP7301055A |
Attorney, Agent or Firm:
Shoji Miyoshi