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:
Feb. 24, 2015
Filed:
May. 22, 2012
Yukihide Ishino, Kosai, JP;
Akitomo Sasaki, Kosai, JP;
Akihiro Utsumi, Kosai, JP;
Toshiaki Yamada, Hamamatsu, JP;
Yukihide Ishino, Kosai, JP;
Akitomo Sasaki, Kosai, JP;
Akihiro Utsumi, Kosai, JP;
Toshiaki Yamada, Hamamatsu, JP;
Asmo Co., Ltd., Kosai-shi, JP;
Abstract
An annular motor core has a plurality of split core pieces, each of which includes a yoke portion and a tooth. The split core pieces are circumferentially located and arranged in an annular shape such that the yoke portions of the core pieces form an annular shape as a whole and that the distal ends of the teeth of the core pieces face inward or outward each in a radial direction of the core. The core further includes an annular holder, which has joint portions at a plurality of positions in a circumferential direction of the holder. A first end of each of the core pieces is pivotably joined to the corresponding one of the joint portions. Each core piece can be pivoted about the corresponding joint portion relative to the holder such that a second end of the core piece moves in a radial direction of the holder.