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Patent Searching and Data


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 (1-7, Yukigaya-otsukamachi, Ota-k, Tokyo 01, 〒1458501, JP)
SATO, Kiyoshi (1-7, Yukigaya-otsukamachi, Ota-k, Tokyo 01, 〒1458501, JP)
NUMATA, Taishi (1-7, Yukigaya-otsukamachi, Ota-k, Tokyo 01, 〒1458501, JP)
SATO, Hideji (1-7, Yukigaya-otsukamachi, Ota-k, Tokyo 01, 〒1458501, JP)
AOKI, Daigo (1-7, Yukigaya-otsukamachi, Ota-k, Tokyo 01, 〒1458501, JP)
MATSUI, Kazuhiko (1-7, Yukigaya-otsukamachi, Ota-k, Tokyo 01, 〒1458501, JP)
KAWASE, Kyoichi (1-7, Yukigaya-otsukamachi, Ota-k, Tokyo 01, 〒1458501, JP)
Application Number:
JP2017/007325
Publication Date:
December 14, 2017
Filing Date:
February 27, 2017
Export Citation:
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Assignee:
ALPS ELECTRIC CO., LTD. (1-7 Yukigaya-otsukamachi, Ota-ku Tokyo, 01, 〒1458501, JP)
International Classes:
H04R1/02; H04R11/02
Foreign References:
US3560667A1971-02-02
JP2002027598A2002-01-25
Attorney, Agent or Firm:
NOZAKI, Teruo (Oak Ikebukuro Building 3F, 1-21-11 Higashi-Ikebukuro Toshima-k, Tokyo 13, 〒1700013, JP)
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