Title:
SWITCHING DEVICE FOR MOTOR-DRIVEN SWITCHING DOOR
Document Type and Number:
Japanese Patent JP3671613
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent a motor-driven switching door from being forcibly wound and causing noises or colliding against a frame by providing a clutch means between the electric motor and winding drum of the door, providing the winding drum with a balance spring whose energy in an opening direction is stored as the door is operated for closing, and causing the door to be automatically opened or closed by the release of the clutch.
SOLUTION: A first clutch 11 connected to an electric motor is provided with a brake member 14, and an oil retaining groove 14a retaining grease 15 is formed in the outer peripheral surface of the brake member 14. The brake member 14 is fitted into a casing 10 which rotates integral with a winding drum, and the grease 15 supplied between the outer peripheral surface of the brake member 14 and the inner peripheral surface of the casing 10 produces sliding resistance between them.
Inventors:
Kenji Hosoyama
Seki Katsuhiro
Seki Katsuhiro
Application Number:
JP22094697A
Publication Date:
July 13, 2005
Filing Date:
August 01, 1997
Export Citation:
Assignee:
Sanwa Shutter Corporation
International Classes:
E06B9/56; E06B9/80; E06B9/82; (IPC1-7): E06B9/80; E06B9/56; E06B9/82
Domestic Patent References:
| JP3180686A | ||||
| JP8210062A | ||||
| JP59098100U | ||||
| JP7122385B2 |
Attorney, Agent or Firm:
Tetsuo Hirose
Previous Patent: RESIN COMPOSITION FOR VIBRATION FUSION
Next Patent: FILM ELIMINATION DEVICE, AND FILM ELIMINATION METHOD FOR CRT PANEL
Next Patent: FILM ELIMINATION DEVICE, AND FILM ELIMINATION METHOD FOR CRT PANEL