Title:
DOOR MECHANISM ATTACHED SHUTTER DEVICE
Document Type and Number:
Japanese Patent JP3541752
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a door mechanism attached shutter device capable of smoothly operating a shutter curtain.
SOLUTION: Then both sides of the curtain 20 respectively make them as first and second sections 20A and 20B with the central position K in the direction of the width of the curtain as a boundary, the heavy-weight moment for the central position K in the shutter curtain 20 including door mechanisms 50 and 51 in the first section 20A and the heavy-weight moment for the central position K in the shutter curtain 20 including door mechanisms 52 and 53 in the second section 20B are opposite to each other and have the same size or the approximately same size. With the central position K as reference, the door mechanisms 50 to 53 are arranged so as to make approximately symmetrical in the direction of the width of the curtain.
Inventors:
Atsushi Nakajima
Shinichi Murayama
Toshio Shimizu
Noriaki Iwase
Shinichi Murayama
Toshio Shimizu
Noriaki Iwase
Application Number:
JP31310799A
Publication Date:
July 14, 2004
Filing Date:
November 02, 1999
Export Citation:
Assignee:
Bunka Shutter Co., Ltd.
International Classes:
E06B9/02; A62C2/06; A62C2/10; E06B9/13; E06B9/17; (IPC1-7): E06B9/17; A62C2/06; A62C2/10; E06B9/02; E06B9/13
Domestic Patent References:
| JP9187525A | ||||
| JP10314328A | ||||
| JP10165533A |
Attorney, Agent or Firm:
Takeshi Ando