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. 13, 2019
Filed:
Jul. 27, 2015
Nidec Copal Corporation, Tokyo, JP;
Yoshinori Katada, Tokyo, JP;
Nidec Copal Corporation, Tokyo, JP;
Abstract
The present invention guides the linear vibrations of a needle, obtains stable vibrations and exhibits excellent impact strength, and makes thinness or widthwise compactness possible. A linear vibration motor equipped with: a needle equipped with a magnet and a spindle part; a frame for slidably supporting the needle in one axial direction; a coil for driving the magnet in the one axial direction, and affixed to the frame; and an elastic member for imparting an elastic force to the needle in opposition to the driving force imparted on the magnet. Furthermore, a guide groove extending in the one axial direction is provided in the needle or the frame, and a rolling body for rolling and being guided by the guide groove is provided in the other of the needle and the frame.