Title:
FAIL SAFETY ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2011/037287
Kind Code:
A1
Abstract:
The present invention relates to a fail safety actuator. The fail safety actuator according to the present invention includes: a driver for supplying a driving force; a moving member for moving to a position or returning to an original position by the driving force of the driver so as to transmit the driving force of the driver to a separate device; and a return assembly to be supplied with power from the outside when the driver is not in operation, and operating by heating operations due to the supplied power so as to supply a pressing force to a part of the moving member, thereby returning the moving member to the original position. According to the present invention, it is possible to easily operate the return assembly since the return assembly operates by the power supply. In addition, it is possible to simply construct the return assembly.
Inventors:
CHO UN CHUNG (KR)
KIM HONG SUN (KR)
CHO EUN SANG (KR)
LEE CHANG IN (KR)
LEE JIN WOO (KR)
KIM HONG SUN (KR)
CHO EUN SANG (KR)
LEE CHANG IN (KR)
LEE JIN WOO (KR)
Application Number:
PCT/KR2009/005510
Publication Date:
March 31, 2011
Filing Date:
September 25, 2009
Export Citation:
Assignee:
KOREA POLYTECH UNIV IND ACAD (KR)
INZI CONTROLS CO LTD (KR)
CHO UN CHUNG (KR)
KIM HONG SUN (KR)
CHO EUN SANG (KR)
LEE CHANG IN (KR)
LEE JIN WOO (KR)
INZI CONTROLS CO LTD (KR)
CHO UN CHUNG (KR)
KIM HONG SUN (KR)
CHO EUN SANG (KR)
LEE CHANG IN (KR)
LEE JIN WOO (KR)
International Classes:
F16K31/04; F15B20/00; F16H55/02; F16H57/02
Foreign References:
| JPH11294163A | 1999-10-26 | |||
| US6267352B1 | 2001-07-31 | |||
| US20040084016A1 | 2004-05-06 |
Attorney, Agent or Firm:
KO, KWANG OK (KR)
고광옥 (KR)
고광옥 (KR)
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