IP Library Granted Patent US 11,383,270
Granted Patent B2
US 11,383,270 · App. 16/774,208 · Granted Jul 12, 2022

Vibration generator for vibrating in multiple directions

Inventors: Tomokuni Wauke (Miyagi, JP); Takashi Ogihara (Miyagi, JP)
Assignee: ALPS ALPINE CO., LTD.
B06B1/045H02K33/18H02K33/16H02K35/02
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Quick Facts
Patent No.
US 11,383,270
App. No.
16/774,208
Granted
Jul 12, 2022
Kind
B2
Abstract

A vibration generator includes a housing, a vibrating body accommodated in the housing, an elastic support supporting the vibrating body such that the vibrating body can vibrate along a first direction and a second direction intersecting each other, and a magnetic drive configured to drive the vibrating body along the first direction and the second direction using a magnetic force, and wherein the magnetic drive includes a plurality of first magnetic field generators disposed side by side at a predetermined interval in the vibrating body in the first direction or the second direction, and a plurality of second magnetic field generators disposed on positions facing both ends of each of the plurality of first magnetic field generators in the housing, and wherein a longitudinal direction of the housing is in a third direction intersecting the first direction and the second direction.

Claims (9)

1. A vibration generator, comprising:

a housing;

a vibrating body accommodated in the housing;

an elastic support supporting the vibrating body such that the vibrating body can vibrate along a first direction and a second direction intersecting each other; and

a magnetic drive configured to drive the vibrating body along the first direction and the second direction using a magnetic force,

wherein the magnetic drive includes a plurality of first magnetic field generators disposed side by side at a predetermined interval in the vibrating body in the first direction or the second direction, and a plurality of second magnetic field generators disposed on positions facing both ends of each of the plurality of first magnetic field generators in the housing, and

wherein a longitudinal direction of the housing is in a third direction intersecting the first direction and the second direction.

2. The vibration generator as claimed in claim 1 , wherein a first magnetic field generator among the plurality of first magnetic field generators is an electromagnet including a magnetic core and a coil, and a second magnetic field generator among the plurality of second magnetic field generators is a permanent magnet.

3. The vibration generator as claimed in claim 1 , wherein the housing includes a lower case and an upper case that can be separated from each other, and each of the lower case and the upper case includes a flat plate tab projecting outside, and the flat plate tab of the lower case and the flat plate tab of the upper case form a fixing portion fixing the housing to a target device by overlapping each other in a state of the lower case and the upper case being coupled with each other.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 28, 2020
From: WAUKE, TOMOKUNI; OGIHARA, TAKASHI
To: ALPS ALPINE CO., LTD.
Reel/Frame 051639/0786 →
Priority Claims (2)
JP JP2017-151068 · Aug 3, 2017 · national
JP JP2017-199862 · Oct 13, 2017 · national
Continuity (2)
Continuation PCTJP2018028661 · Jul 31, 2018
Related Publication 20200156112A1 · May 21, 2020