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:
May. 08, 2012
Filed:
Feb. 04, 2009
Masaharu Kagami, Tama, JP;
Kazutaka Sakaguchi, Tama, JP;
Yuki Takahashi, Sagamihara, JP;
Shigenori Inamoto, Sagamihara, JP;
Masaharu Kagami, Tama, JP;
Kazutaka Sakaguchi, Tama, JP;
Yuki Takahashi, Sagamihara, JP;
Shigenori Inamoto, Sagamihara, JP;
Mitsumi Electric Co., Ltd., Tokyo, JP;
Abstract
A vibration generatorhas an attachment structure of a spring by which the attachment error of the spring elastically supporting a mover composed of a magnet and a yoke does not become the error of the span of the spring to make it possible to improve the ease and yield of manufacture. The vibration generatorincludes a mover which is composed of a magnetand yokesand, and a springwhich is composed of an integrally molded article made of an elastomeric material and elastically supports the mover to allow the mover to vibrate in the central axis direction C. The spring is arranged on the outside of a coilin a radial direction thereof and extends along the radial direction. An outer end portionin the radial direction is nipped by two partsandin the central axis direction to be fixed to the housingsand, and an inner end portionin the radial direction is nipped by two partsandconstituting the outer circumferential part of the yoke in the central axis direction to be fixed to the outer circumferential part of the yoke. The outer end portion and the inner end portion have projecting parts formed to project from an elastic deformation section, connecting the outer end portion and the inner end portion to each other, into two directions along the central axis.