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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 (5329 Shimosuwa-mach, Suwa-gun Nagano 11, 〒3938511, JP)
KITAHARA, Hiroshi (5329 Shimosuwa-mach, Suwa-gun Nagano 11, 〒3938511, JP)
Application Number:
JP2016/059997
Publication Date:
October 06, 2016
Filing Date:
March 29, 2016
Export Citation:
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Assignee:
NIDEC SANKYO CORPORATION (5329, Shimosuwa-machi Suwa-gu, Nagano 11, 〒3938511, JP)
International Classes:
H02K33/16
Foreign References:
JP2012125135A2012-06-28
JP2015061461A2015-03-30
JP2001340812A2001-12-11
JP2006187104A2006-07-13
JP2006075734A2006-03-23
US20130076162A12013-03-28
Other References:
See also references of EP 3280037A4
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