Title:
REVOLUTION CONTROL MECHANISM FOR REVOLVING BODY AND OPENING AND CLOSING DEVICE SUCH AS A DOOR EMPLOYING THE SAME
Document Type and Number:
WIPO Patent Application WO/2010/092982
Kind Code:
A1
Abstract:
Provided is a door that does not feel heavy when opened, slowly revolves, and closes airtightly, but produces little sound of impact on closing and temporarily stops when a strong sudden force is applied thereto such as to prevent catching fingers in the door and other accidents. The door also has a function for opening fully when opened by a small amount and closing fully when closed by a small amount. The closing speed is controlled by varying the direction of force using a deceleration structure that is not based on oil viscosity resistance or friction resistance. The door revolves under the minimum spring force setting, and even if the door stops immediately before closing, the device continues to turn, spring force increases to the maximum, and the door closes airtightly via a first door with little sound of impact.
Inventors:
OKAMOTO KOICHI (JP)
Application Number:
PCT/JP2010/051964
Publication Date:
August 19, 2010
Filing Date:
February 10, 2010
Export Citation:
Assignee:
OKAMOTO KOICHI (JP)
International Classes:
E05F1/10; E05F3/00; E05F5/02; E05F5/08
Foreign References:
| JP2003129741A | 2003-05-08 | |||
| JP2008248482A | 2008-10-16 |
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