Title:
電磁式駆動ユニットおよびその製造方法
Document Type and Number:
Japanese Patent JP5604212
Kind Code:
B2
Abstract:
[Problem] To provide an electromagnetic drive unit that reduces the number of processing operations of an inner housing and also reduces manufacturing cost, and to provide a method for manufacturing this electromagnetic drive unit. [Solution] An electromagnetic drive unit according to the present invention includes an inner housing (H), a plunger (3) housed in the inner housing, and a solenoid assembly (SA) mounted to surround the inner housing. The inner housing (H) includes a stator (1), a yoke (2), and a cylindrical member (5). The inner housing is formed as follows. The cylindrical member and the yoke are bonded by welding in a state where one end side of the cylindrical member is fitted in a first level difference portion (2e). The cylindrical member and the stator are bonded by welding in a state where another end side of the cylindrical member is fitted in a second level difference portion (Ig).
Inventors:
Hideaki Ito
Sakurako Hirano
Masaki Takao
Mitsuhiro Yoshimoto
Akihiko Yamamoto
稲津 Yosuke
Sakurako Hirano
Masaki Takao
Mitsuhiro Yoshimoto
Akihiko Yamamoto
稲津 Yosuke
Application Number:
JP2010174725A
Publication Date:
October 08, 2014
Filing Date:
August 03, 2010
Export Citation:
Assignee:
Hitachi Construction Machinery Co., Ltd.
International Classes:
H01F7/127; F16K31/06; H01F7/16
Attorney, Agent or Firm:
Patent business corporation Takekazu international patent firm