The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 23, 2005
Filed:
Sep. 29, 2003
Toshie Takeuchi, Tokyo, JP;
Nobumoto Tohya, Tokyo, JP;
Mitsuru Tsukima, Tokyo, JP;
Takafumi Nakagawa, Tokyo, JP;
Yoshiharu Kobayashi, Hyogo, JP;
Hitoshi Gotou, Hyogo, JP;
Toshie Takeuchi, Tokyo, JP;
Nobumoto Tohya, Tokyo, JP;
Mitsuru Tsukima, Tokyo, JP;
Takafumi Nakagawa, Tokyo, JP;
Yoshiharu Kobayashi, Hyogo, JP;
Hitoshi Gotou, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
In an actuator, coils are kept from being displaced along a y-axis direction as projections of coil bobbins are sandwiched between first and second iron cores along the y-axis direction. Also, the coils are kept from being displaced excessively along x- and z-axis directions due to shocks, for instance, because they are fitted in groovelike channels fitted in the first and second iron cores. Since two bearings are sandwiched and fixed between third and fourth iron cores along the x-axis direction, the bearings can be easily set on a common axis with high accuracy. It is therefore possible to prevent displacement of the coils during operation of the actuator. Slidable support plates ensure smooth movements of an armature and thereby provide improved reliability, even when the distance between the support plates and the first to fourth iron cores is reduced.