Title:
SOUND-PRODUCING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/212696
Kind Code:
A1
Abstract:
[Problem] To provide a sound-producing device capable of preventing a bonding agent by which a vibration support sheet is bonded to a frame from becoming attached to a joint part when a lower case and an upper case are combined.
[Solution] An outer peripheral edge part 12a of a vibration support sheet 12 constituting a vibration body 10 is affixed to a vibration body mounting surface 5b of a frame 5 by a bonding agent. In the frame 5, a part to be sandwiched 6 is formed closer to the outer periphery side than the vibration body mounting surface 5b, and a step part 7 is formed between an upper contact joint surface 6b of the part to be sandwiched 6 and the vibration body mounting surface 5b. The part to be sandwiched 6 is sandwiched between an opening end part 3c of the lower case 3 and an opening end part 4c of the upper case 4 and affixed by laser spot welding. Since the step part 7 is provided, and the vibration mounting surface 5b and a joint part (i) are discontinuous, the bonding agent for bonding the vibration support sheet 12 can be prevented from entering the joint part (i).
Inventors:
SATO YUTAKA (JP)
SATO KIYOSHI (JP)
NUMATA TAISHI (JP)
SATO HIDEJI (JP)
AOKI DAIGO (JP)
MATSUI KAZUHIKO (JP)
KAWASE KYOICHI (JP)
SATO KIYOSHI (JP)
NUMATA TAISHI (JP)
SATO HIDEJI (JP)
AOKI DAIGO (JP)
MATSUI KAZUHIKO (JP)
KAWASE KYOICHI (JP)
Application Number:
PCT/JP2017/007325
Publication Date:
December 14, 2017
Filing Date:
February 27, 2017
Export Citation:
Assignee:
ALPS ELECTRIC CO LTD (JP)
International Classes:
H04R1/02; H04R11/02
Foreign References:
| US3560667A | 1971-02-02 | |||
| JP2002027598A | 2002-01-25 |
Attorney, Agent or Firm:
NOZAKI, Teruo (JP)
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