Title:
OPENING/CLOSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/195045
Kind Code:
A1
Abstract:
An opening/closing device comprises a breaker, a disconnector, a ground switch, and an operation device that drives the disconnector and the ground switch. The operation device has a motor, a plurality of drive pulleys (33) installed on an output shaft of the motor, and a controller that controls rotation of the motor. The disconnector and the ground switch each have an opening/closing operation unit that performs an opening/closing operation by rotation of a driven pulley. A wire (4) that transmits torque of the motor spans between each of the drive pulleys (33) and each of the driven pulleys. Each of the plurality of drive pulleys (33) has a movable piece (332) including an engaging part (334) that engages an output shaft (32), and a chuck (331) having a drive mechanism that moves the movable piece (332) between a position of an engaged state in which the engaging part (334) engages the output shaft (32) and a position of a non-engaged state in which the engaging part (334) does not contact the output shaft (32). The controller exclusively sets one of the plurality of drive pulleys (33) into the engaged state.
Inventors:
SHIMABAYASHI KEITA (JP)
NAKAUCHI SHINICHIRO (JP)
KUBOTA MASATO (JP)
NAKAUCHI SHINICHIRO (JP)
KUBOTA MASATO (JP)
Application Number:
PCT/JP2022/017046
Publication Date:
October 12, 2023
Filing Date:
April 04, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H01H33/36; H01H33/42; H02B13/035
Domestic Patent References:
| WO2015111133A1 | 2015-07-30 |
Foreign References:
| JP2016173960A | 2016-09-29 | |||
| JP2011146199A | 2011-07-28 | |||
| JP2000285772A | 2000-10-13 | |||
| KR20090113070A | 2009-10-29 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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