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Title:
METHOD OF MANUFACTURING LINEAR ACTUATOR, AND LINEAR ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2016/194918
Kind Code:
A1
Abstract:
This application proposes a method of manufacturing a linear actuator with which it is possible to prevent variability in the stroke and resonant frequency of a movable body by means of a damper member inserted between the movable body and a fixed body. For example, this linear actuator 1 includes 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 which supports the movable body 2 with freedom to move, with the interposition of a spring 4, and a base 32 which is overlapped by the side of the coil bobbin 31 on the side opposite to the movable body 2. During manufacture, a gap C is provided in the direction of movement of the movable body 2, between the coil bobbin 31 and the base 32, and by adjusting the gap dimension of the gap C, a separation distance D between a lower surface 11a of a core body 11 of the movable body 2 and an upper surface 32a of the base 32, between which the damper member 5 is to be inserted, is set to a specified dimension S, which is the length dimension of the damper member 5. Then, the coil bobbin 31 and the base 32 are secured using an adhesive 70 in a state in which the gap C has been formed.

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:
JP2016/066095
Publication Date:
December 08, 2016
Filing Date:
June 01, 2016
Export Citation:
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Assignee:
NIDEC SANKYO CORPORATION (5329, Shimosuwa-machi Suwa-gu, Nagano 11, 〒3938511, JP)
International Classes:
H02K33/02
Foreign References:
JP2014176841A2014-09-25
JPH11341780A1999-12-10
JP2003211087A2003-07-29
JP2006075734A2006-03-23
US20130241322A12013-09-19
US20130076162A12013-03-28
Other References:
See also references of EP 3306796A4
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