Title:
DEVICE FOR WINDING SHUTTER OR THE LIKE
Document Type and Number:
Japanese Patent JP3842770
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To manually open or close a closing element irrespective of the condition of an electric motor.
SOLUTION: A shutter curtain 8 is wound by the rotation of a winding pipe 7 and a tube motor 3 serving as a drive source is provided inside the winding pipe 7. A clutch mechanism 10 is provided between the tube motor 3 and a winding wheel 5a. When an operator pulls a wire cable 15 the clutch mechanism 10 is disconnected from the tube motor 3. The shutter curtain 8 can be easily opened by the winding force of a winding spring 9. Even if the tube motor 3 fails while the shutter curtain 8 is wound, the shutter curtain 8 can be extended from the winding pipe 8 by disconnecting the clutch mechanism 10, and the tube motor 3 inside it can be easily replaced.
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Inventors:
Mimasa Nagai
Application Number:
JP2003314110A
Publication Date:
November 08, 2006
Filing Date:
September 05, 2003
Export Citation:
Assignee:
Bunka Shutter Co., Ltd.
International Classes:
E06B9/74; (IPC1-7): E06B9/74
Domestic Patent References:
| JP61043397U | ||||
| JP5006095U | ||||
| JP3028487A | ||||
| JP3073395U |
Attorney, Agent or Firm:
Norimitsu Nishimura
Noriyuki Suzuki
Noriyuki Suzuki