Title:
SOUNDING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/047200
Kind Code:
A1
Abstract:
[Problem] To provide a sounding device that is capable of improving the vibration characteristics of a vibration plate supported by a flexible sheet. [Solution] A flexible sheet 12 is attached via a resin film to a vibration-side opening part 6c of a vibration-side frame 6, and a vibration plate 11 is bonded to the flexible sheet 12. A support-side gap (iii) between a support-side end part 11c of the vibration plate 11 and the vibration-side opening part 6c of the vibration-side frame 6, is covered with the flexible sheet 12. An upper-side resin reinforcing member 15 is provided on a second surface 12c of the flexible sheet 12, and the flexible sheet 12 is reinforced by the upper-side resin reinforcing member 15 at the support-side gap (iii). The upper-side resin reinforcing member 15 can be formed without a variation in thickness on the second surface 12c.
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Inventors:
SATO HIDEJI (JP)
SATO KIYOSHI (JP)
NUMATA TAISHI (JP)
SATO YUTAKA (JP)
SATO KIYOSHI (JP)
NUMATA TAISHI (JP)
SATO YUTAKA (JP)
Application Number:
PCT/JP2016/069235
Publication Date:
March 23, 2017
Filing Date:
June 29, 2016
Export Citation:
Assignee:
ALPS ELECTRIC CO LTD (JP)
International Classes:
H04R11/02
Domestic Patent References:
| WO2012131825A1 | 2012-10-04 |
Foreign References:
| JP2012004850A | 2012-01-05 | |||
| JP2002300698A | 2002-10-11 |
Attorney, Agent or Firm:
NOZAKI, Teruo (JP)
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