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Patent Searching and Data


Title:
VIBRATING APPARATUS AND METHOD FOR DRIVING THE SAME
Document Type and Number:
WIPO Patent Application WO/2019/021815
Kind Code:
A1
Abstract:
Provided is a vibrating apparatus with which sounds of a plurality of desired frequencies can easily be produced, and an advancement in size reduction can be achieved. This vibrating apparatus 1 comprises: a first elastic plate 2a having a first flat plate part 2a1, a first connecting part 2a2, and a joining part 2a3; a second elastic plate 2b that is joined to the joining part 2a3 and has a second flat plate part 2b1 opposing the first flat plate part 2a1; a piezoelectric vibrating element 3 provided to the first flat plate part 2a1 of the first elastic plate 2a; and a mass-adding member 8 attached to the first elastic plate 2a. The first elastic plate 2a is configured so as to be capable of producing sounds of a plurality of frequencies by vibration in a flexing mode, and the first flat plate part 2a1 and first connecting part 2a2 are configured such that, at frequencies different from the harmonic frequency that occurs when only the first flat plate part 2a1 is vibrated by the flexing mode, sound can be produced by the first elastic plate 2a being vibrated by the flexing mode.

Inventors:
KAGAYAMA KENJI (JP)
ICHIHASHI HAYATO (JP)
NOMURA JUNICHI (JP)
Application Number:
PCT/JP2018/026046
Publication Date:
January 31, 2019
Filing Date:
July 10, 2018
Export Citation:
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Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
B06B1/06; B06B1/04; H04R17/00
Domestic Patent References:
WO2010023801A12010-03-04
Foreign References:
JP2012119882A2012-06-21
JPH02127696A1990-05-16
Attorney, Agent or Firm:
MIYAZAKI & METSUGI (JP)
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