Title:
シャッターの改修方法
Document Type and Number:
Japanese Patent JP7229078
Kind Code:
B2
Abstract:
To provide a shutter modification method capable of enabling electrically opening of a shutter without affecting a control unit in the event of a power outage, etc. by modifying existing management and fire prevention shutter.SOLUTION: A shutter includes: a 2' path for supplying the electric power from a commercial power supply to a control unit 4; and a 1' path for supplying the electric power of the commercial power supply which is supplied to the control unit 4 to an electrically-driven open/close machine M. The shutter modification method includes the steps of: replacing the 1' path with a first path that supplies the electric power from the commercial power supply, which is supplied from the control unit 4 to the electrically-driven open/close machine M; electrically connecting a third path which is electrically connectable to the first path to a temporary power supply different from the commercial power supply; and installing a power switch S for selecting the commercial power supply from the control unit 4 or the temporary power supply from the third path.SELECTED DRAWING: Figure 7
Inventors:
Yuji Asami
Sumito Minagawa
Sumito Minagawa
Application Number:
JP2019073141A
Publication Date:
February 27, 2023
Filing Date:
April 05, 2019
Export Citation:
Assignee:
Sanwa Shutter Corporation
International Classes:
E06B9/82; A62C2/06; E06B9/74; E06B9/84
Domestic Patent References:
| JP2123592U | ||||
| JP201835560A | ||||
| JP201796072A | ||||
| JP200831714A |
Attorney, Agent or Firm:
Shigeru Inaba
Takato Hatazoe
Takato Hatazoe