Title:
LINEAR ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2013/176189
Kind Code:
A1
Abstract:
A linear actuator (1) having: a shaft (26) that is forward/reverse rotated by a motor via a worm (36) and a worm wheel (41); a screw nut (29) threadably mounted to the shaft (26); and a piston tube (10) fixed to the screw nut (29) and that advances and retreats in accordance with the rotation of the shaft (26). A metal coupling (42) is attached on the inside, in the radial direction, of the worm wheel (41). A one-way clutch (44) is attached on the inside, in the radial direction, of the coupling (42). A brake unit (45) that does not apply braking force during forward rotation, during which the piston tube (10) extends, and does apply braking force during reverse rotation of the piston tube (10) is connected to the one-way clutch (44).
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Inventors:
NAKAMURA MASATO (JP)
INOUE MASAKI (JP)
SUZUKI MASATOSHI (JP)
TAJIMA YUSUKE (JP)
SUZUKI YUTA (JP)
OKI SHINYA (JP)
INOUE MASAKI (JP)
SUZUKI MASATOSHI (JP)
TAJIMA YUSUKE (JP)
SUZUKI YUTA (JP)
OKI SHINYA (JP)
Application Number:
PCT/JP2013/064271
Publication Date:
November 28, 2013
Filing Date:
May 22, 2013
Export Citation:
Assignee:
MITSUBA CORP (JP)
International Classes:
F16H25/20; A61G7/00; F16D55/226; F16D65/14; F16D65/18; H02K7/06
Foreign References:
| JPH09191611A | 1997-07-22 | |||
| JPH10205311A | 1998-08-04 | |||
| JPH0842657A | 1996-02-16 | |||
| JP2000152557A | 2000-05-30 | |||
| JP2001507110A | 2001-05-29 | |||
| JP2009510347A | 2009-03-12 |
Attorney, Agent or Firm:
TAKANO YASUSHI (JP)
Yasushi Takano (JP)
Yasushi Takano (JP)
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