Title:
BONE CONDUCTION SPEAKER UNIT
Document Type and Number:
WIPO Patent Application WO/2018/193790
Kind Code:
A1
Abstract:
[Problem] To provide a bone conduction speaker unit that significantly remedies sound leakage from the bone conduction speaker unit itself, and for which there is no concern of the adsorption of fine iron powder and refuse, or of the infiltration of moisture. [Solution] A magnetic type bone conduction speaker unit in which a bone conduction speaker 2 is housed in a unit case 1 having an opened top surface, and in which a contact 4 for transmitting vibrations on a vibration plate 3 of the bone conduction speaker 2 is arranged, wherein the top surface opening of the unit case 1 is blocked by a breathable elastic film 5.
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Inventors:
FUKUDA MIKIO (JP)
Application Number:
PCT/JP2018/011692
Publication Date:
October 25, 2018
Filing Date:
March 23, 2018
Export Citation:
Assignee:
TEMCO JAPAN (JP)
International Classes:
H04R1/00
Domestic Patent References:
| WO2015125566A1 | 2015-08-27 | |||
| WO2014083986A1 | 2014-06-05 | |||
| WO2007034739A1 | 2007-03-29 |
Foreign References:
| JP2005151183A | 2005-06-09 |
Other References:
See also references of EP 3477962A4
Attorney, Agent or Firm:
SAITOH Haruo (JP)
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