Title:
POWER SWITCHING DEVICE FOR OPENING AND CLOSING DEVICE
Document Type and Number:
Japanese Patent JP2018178424
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a power switching device for an opening and closing device, which allows a power supply state from a first power supply or a second power supply that are switched by a change-over switch to be grasped.SOLUTION: A shutter apparatus that is an opening and closing device comprises: a shutter curtain, which is an opening and closing body capable of being freely opened and closed; an opening and closing machine, which is a drive unit to drive the shutter curtain; a commercial power supply 20, which is a first power supply to supply power at least to the opening and closing machine in normal times; an electric generator 80, which is a second power supply to supply power at least to the opening and closing machine in emergency; and a change-over switch 53 to switch the power supply from the commercial power supply 20 to the electric generator at least in emergency. The power switching device 50 for the shutter apparatus has a pilot lamp 54, which is a first display device to indicate a power supply state from the commercial power supply 20, and a pilot lamp 55, which is a second display device to indicate a power supply state from the electric generator 80.SELECTED DRAWING: Figure 6
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Inventors:
TAKAI KUNIHARU
Application Number:
JP2017075646A
Publication Date:
November 15, 2018
Filing Date:
April 06, 2017
Export Citation:
Assignee:
BUNKA SHUTTER
International Classes:
E06B9/68; A62C2/06; E05F15/60
Domestic Patent References:
| JPS57151791A | 1982-09-18 | |||
| JPS573984A | 1982-01-09 | |||
| JPS523242A | 1977-01-11 | |||
| JP2003301678A | 2003-10-24 |
Foreign References:
| US20090139668A1 | 2009-06-04 |
Attorney, Agent or Firm:
Shigeki Yamakawa
Yuzo Koike
Takeshi Ando
Yuzo Koike
Takeshi Ando