Title:
シャッター装置
Document Type and Number:
Japanese Patent JP6985061
Kind Code:
B2
Abstract:
To provide a shutter apparatus which allows restricting a winding diameter of a winding shaft of a shutter curtain from becoming larger, even though the shutter curtain is configured to include a curtain constitution member made of plates each having a plurality of concavities and convexities alternately and successively formed in a shutter curtain open/close movement direction.SOLUTION: A shutter curtain which moves to open and close by winding and unwinding of a winding shaft includes a panel 21 being a curtain constitution member made of plates each having a plurality of convexities 22 and concavities 23 which are concave and convex in a shutter curtain thickness direction and alternately and successively formed in a shutter curtain open/close movement direction. A bottom portion 23A of the concavity 23 is shaped to be curved and protruded in an outer diameter direction of the winding shaft in accordance with an external shape of the winding shaft.SELECTED DRAWING: Figure 5
Inventors:
Masakazu Shigemura
Ryota Hironaga
Juichi Wada
Katsuhiko Murakami
Ryota Hironaga
Juichi Wada
Katsuhiko Murakami
Application Number:
JP2017159145A
Publication Date:
December 22, 2021
Filing Date:
August 22, 2017
Export Citation:
Assignee:
Bunka Shutter Co., Ltd.
International Classes:
E06B9/15
Domestic Patent References:
| JP2016217109A | ||||
| JP2002147140A | ||||
| JP2009270337A | ||||
| JP201574951A | ||||
| JP57124594U |
Foreign References:
| US20140053990 | ||||
| KR1020070049259A | ||||
| US8365801 | ||||
| KR1020070050093A | ||||
| US20150191969 |
Attorney, Agent or Firm:
Shigeki Yamakawa
Yuzo Koike
Takeshi Ando
Yuzo Koike
Takeshi Ando