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:
Jun. 18, 2002
Filed:
Jun. 19, 2000
Yasuhiro Miyamoto, Kitakyushu, JP;
Masaki Hisatsune, Kitakyushu, JP;
Kazuhiro Maekawa, Kitakyushu, JP;
Takato Doi, Kitakyushu, JP;
Masahiko Tanabe, Kitakyushu, JP;
Kabushiki Kaisha Yaskawa Denki, Kitakyushu, JP;
Abstract
The invention relates to a linear motor which is provided with a row of permanent magnets . . . for a field system, and an armature facing the same via a magnetized space in an orthogonal direction thereto, wherein the armature core has a winding accommodation groove formed at both sides of armature iron plates produced by punching out oriented electromagnetic steel plate so as to become rectangular, and convex and concave engagement portions and the armature iron plates are laminated to constitute one core block, and at the same time, the lengthwise direction, orthogonal to the permanent magnet row, in the respective core blocks is made the same as the rolling direction of electromagnetic steel plates. Thereby, since the magnetic flux of the armature winding flows along the rolling direction of the core blocks, the magnetic flux density can be increased, and the peak thrust can be also increased.