Title:
EMERGENCY BRAKE DEVICE FOR OCCURRENCE OF ACCELERATION OF ELEVATOR DOOR
Document Type and Number:
WIPO Patent Application WO/2022/103061
Kind Code:
A1
Abstract:
An emergency brake device for occurrence of acceleration of an elevator door of the present invention is fixedly installed at both lower ends of the elevator door and moves up along a guide rail, and may be configured comprising: a fixing bracket (110) secured to the elevator door; an acceleration prevention device (100) installed in a front inner side of the fixing bracket (110) and causing a braking force when a door downward speed of the elevator door accelerates above a regulation speed; a braking blade driving mechanism (150) which receives the braking force of the acceleration prevention device (100) and brings a braking blade (151) into contact with the guide rail (300), thereby stopping the door downward movement of the elevator door; and a braking force transmission system for transmitting the braking force between the acceleration prevention device (100) and the braking blade driving mechanism (150).
Inventors:
LEE KYONG KYU (KR)
Application Number:
PCT/KR2021/015818
Publication Date:
May 19, 2022
Filing Date:
November 03, 2021
Export Citation:
Assignee:
JOKANGFOD CO LTD (KR)
International Classes:
E06B9/84; E05F5/00; E05F15/40; E05F15/684
Foreign References:
| KR100695956B1 | 2007-03-16 | |||
| JP2007177489A | 2007-07-12 | |||
| KR200329070Y1 | 2003-10-04 | |||
| JPH09268856A | 1997-10-14 | |||
| JP2007204962A | 2007-08-16 | |||
| KR102265278B1 | 2021-06-15 |
Attorney, Agent or Firm:
LEE, Jong Young (KR)
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