Title:
LINEAR ACTUATOR AND METHOD FOR MANUFACTURING LINEAR ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2016/158888
Kind Code:
A1
Abstract:
The present invention provides a linear actuator wherein a gap between a movable body and a fixed body is accurately specified, said gap having a damper member inserted therein. For instance, a linear actuator 1 has a movable body 2, a fixed body 3, and a damper member 5 disposed between the movable body 2 and the fixed body 3. The fixed body 3 is provided with: a coil bobbin 31 that movably supports the movable body 2 via a spring 4; and a base 32 that overlaps the coil bobbin 31 side that is opposite to the movable body 2. The coil bobbin 31 is provided with a protruding section 40 protruding toward the base 32. The damper member 5 is inserted between a lower surface 11a of a core body 11 of the movable body, and an upper surface 32a of the base 32. A gap between the lower surface 11a of the core body 11 and the upper surface 32a of the base 32 is set to have a specified dimension S by crushing a leading end portion of the protruding section 40, said specified dimension being the length dimension of the damper member 5.
Inventors:
TAKEDA TADASHI (JP)
KITAHARA HIROSHI (JP)
KITAHARA HIROSHI (JP)
Application Number:
PCT/JP2016/059997
Publication Date:
October 06, 2016
Filing Date:
March 29, 2016
Export Citation:
Assignee:
NIDEC SANKYO CORP (JP)
International Classes:
H02K33/16
Foreign References:
| JP2012125135A | 2012-06-28 | |||
| JP2015061461A | 2015-03-30 | |||
| JP2001340812A | 2001-12-11 | |||
| JP2006187104A | 2006-07-13 | |||
| JP2006075734A | 2006-03-23 | |||
| US20130076162A1 | 2013-03-28 |
Other References:
See also references of EP 3280037A4
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