ELECTROACOUSTIC TRANSDUCER

Title:

ELECTROACOUSTIC TRANSDUCER

Document Type and Number:

WIPO Patent Application WO/2016/052022

Kind Code:

A1

Abstract:

The present invention improves the strength and durability of a mounting portion to a voice coil in a vibrating body such as a riffel speaker in which a pair of vertically split cylindrical surfaces are disposed in parallel, and further improves a vibration transmission characteristic between the voice coil and the vibrating body. An electroacoustic transducer is provided with: a vibrating body 1 in which a pair of vertically split cylindrical surfaces 15 are formed in parallel and a valley part 16 is formed between adjacent respective one sides of the vertically split cylindrical surfaces 15; a conversion part 2 comprising a voice coil 20 and a magnet mechanism 21 which perform a conversion between vibration along the depth direction of the valley part 16 of the vibrating body 1 and an electric signal corresponding to the vibration; and a support part 35 which supports the vibrating body 1 such that the vibrating body is able to vibrate along the depth direction of the valley part 16. A cylindrical part 13 that couples the vibrating body and the voice coil 20 is provided in the depth direction of the valley part 16 in the middle of the extension of the valley part 16 of the vibrating body 1.

Inventors:

NOZAKI AKIHIKO (JP)

Application Number:

PCT/JP2015/074196

Publication Date:

April 07, 2016

Filing Date:

August 27, 2015

Export Citation:

Click for automatic bibliography generation Help

Assignee:

YAMAHA CORP (JP)

International Classes:

H04R7/14; H04R9/02; H04R9/04

Foreign References:

JPH10191494A	1998-07-21
JP2002078079A	2002-03-15
JPH08102988A	1996-04-16
JPS6016797A	1985-01-28
JPS58103297A	1983-06-20
JP2008124630A	2008-05-29

Other References: