Title:
シャッターの改修方法
Document Type and Number:
Japanese Patent JP7219658
Kind Code:
B2
Abstract:
To provide a shutter modification method capable of opening a shutter curtain with electric power by repairing an existing manual fire protection shutter.SOLUTION: The repair method of existing manual fire protection shutter includes the steps of: replacing a manual open/close machine M1 with an electrically-driven open/close machine M2 that includes a brake and a motor; installing a power connection unit 10B that includes a connection part C1 electrically connectable to a power unit G which is a temporary power supply different from the commercial power supply and an electric open operation unit 10b; and electrically connecting the electrically-driven open/close machine M2 and the power connection unit 10B. In the modified shutter, when opening an opening, the power unit G is connected to the connection part C1, the shutter curtain 1 is raised by performing an opening operation on the electric open operation unit 10b.SELECTED DRAWING: Figure 2
Inventors:
Yuji Asami
Sumito Minagawa
Sumito Minagawa
Application Number:
JP2019071676A
Publication Date:
February 08, 2023
Filing Date:
April 03, 2019
Export Citation:
Assignee:
Sanwa Shutter Corporation
International Classes:
E06B9/70; A62C2/06; E06B9/17; E06B9/68; E06B9/82
Domestic Patent References:
| JP2014084636A | ||||
| JP2013217128A | ||||
| JP7040995U |
Attorney, Agent or Firm:
Shigeru Inaba
Takato Hatazoe
Takato Hatazoe