Title:
LINEAR VIBRATION MOTOR
Document Type and Number:
Japanese Patent JP2016198733
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To stabilize operation characteristics of a linear vibration motor by solving a deviation of a supporting position of a spring end portion.SOLUTION: A linear vibration motor 1 includes: a movable element 10 equipped with a magnet 2 and a weight 3; a frame body 4 which supports the movable element 10 so as to reciprocate and vibrate; a coil 5 which is fixed to the frame body 4, and adds driving force for vibrating the movable element 10 to the magnet 2; and a coil spring 6 which is provided between the frame body 4 and the movable element 10. On one or both of the movable element 10 and the frame body 4, a supporting portion 20 for supporting an end portion 6A of the soil spring 6 is provided. The supporting portion 20 is equipped with a tapered surface 21 inclined to a center axis 6P of the coil spring 6 at a fixed angle. The end portion 6A of the coil spring 6 abuts on the tapered surface 21 to be supported.SELECTED DRAWING: Figure 1
Inventors:
KATADA YOSHINORI
ODAJIMA SHIN
ODAJIMA SHIN
Application Number:
JP2015081205A
Publication Date:
December 01, 2016
Filing Date:
April 10, 2015
Export Citation:
Assignee:
NIDEC COPAL CORP
International Classes:
B06B1/04; H02K33/16
Domestic Patent References:
| JP2011097747A | 2011-05-12 | |||
| JPS571591Y2 | 1982-01-11 | |||
| JP2001123950A | 2001-05-08 | |||
| JP2014028349A | 2014-02-13 | |||
| JPS5057776U | 1975-05-29 |
Attorney, Agent or Firm:
Eichi International Patent Office
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