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Patent Searching and Data


Title:
DOOR OPENING/CLOSING DEVICE
Document Type and Number:
Japanese Patent JP3709545
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a door opening/closing device for braking a door at an arbitrary position, and allowing a door opening/closing mechanism to actuate in a direction for closing the door.
SOLUTION: This door opening/closing device is equipped with a clutch transmitting a power from a drive means to a door opening/closing mechanism when electricity is conducted, and shutting off the transmission of the power from the drive means to the door opening/closing mechanism when the electricity is not conducted. The clutch comprises a drive disc 32a driven by a drive means; a couple-drive disc 33a jointed with the drive disc 32a to transmit the power from the drive means to the door opening/closing mechanism when the electricity is conducted, and separated from the drive disc 32a to shut off the transmission of the power from the drive means to the door opening/closing mechanism; and a brake disc 38 jointed with the couple-drive disc 33a to brake the door opening/closing mechanism in a direction for opening the door under a condition that the drive disc 32a is separated from the couple-drive disc 33a, and allowing the door opening/closing mechanism to actuate in a direction for closing the door.


Inventors:
近田 浩司
覚前 卓也
Application Number:
JP2002000261916
Publication Date:
October 26, 2005
Filing Date:
September 06, 2002
Export Citation:
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Assignee:
三井金属鉱業株式会社
International Classes:
B60J5/10; E05F15/12; E05F5/00; (IPC1-7): B60J5/10; E05F15/12
Domestic Patent References:
JP2001132327A
JP2000160929A
Attorney, Agent or Firm:
酒井 宏明