Title:
DEVICE FOR SWITCHING BETWEEN ELECTRICAL OPERATION AND MANUAL OPERATION OF SHUTTER DEVICE
Document Type and Number:
Japanese Patent JP2020029680
Kind Code:
A
Abstract:
To provide a device for switching between electrical and manual operations of a shutter device in which a switching operation device for switching clutch on/off can be arranged without or with less influence of external force.SOLUTION: A shutter device is configured to include: a take-up shaft reeling/unreeling a shutter curtain 1 for an opening/closing movement of the curtain 1; an opening/closing machine with an electric motor for rotating the take-up shaft; and a clutch interposed between the take-up shaft and the electric motor, the clutch being designed, when being turned on, to transmit a driving force of the electric motor to the take-up shaft so that the curtain 1 is allowed to reel/unreel electrically, the clutch being designed, when being turned off, to interrupt between the electric motor and the take-up shaft so that the curtain 1 is allowed to reel/unreel manually. A switching actuator 45 that is operated to switch the clutch on and off is located in a guide rail 2, which guides the opening/closing movement of the curtain 1, in such a manner that at least a portion the switching actuator 45 is accommodated in the guide rail 2.SELECTED DRAWING: Figure 11
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Inventors:
SHIGEMURA MASAKAZU
BABA TOSHIKAZU
HIRONAGA RYOTA
TSUDA MASANOBU
BABA TOSHIKAZU
HIRONAGA RYOTA
TSUDA MASANOBU
Application Number:
JP2018155167A
Publication Date:
February 27, 2020
Filing Date:
August 22, 2018
Export Citation:
Assignee:
BUNKA SHUTTER
International Classes:
E06B9/74
Domestic Patent References:
| JPH10299364A | 1998-11-10 | |||
| JPH1181836A | 1999-03-26 |
Foreign References:
| US20170167194A1 | 2017-06-15 |
Attorney, Agent or Firm:
Shigeki Yamakawa
Yuzo Koike
Takeshi Ando
Yuzo Koike
Takeshi Ando