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Title:
Informing device
Document Type and Number:
Japanese Patent JP6210325
Kind Code:
B2
Abstract:
In an audio unit (3), a guiding space formation member (45) forms a guiding space (62) in cooperation with a sound source holder (13). The sound source holder (13) has a first sound-guiding space part (19B) that is surrounded by a first sound-guiding tube (19) that is provided so as to extend to a downward side (D) from a sound source (14), and has a first space part (20B) that is surrounded by a first inclined tube (20) that is continuously provided to a downward end of the first sound-guiding tube (19) and that expands toward the downward side (D). The guiding space formation member (45) has an upward-side opening (40) that is connected to the first space part (20B), a downward-side opening (36) that is provided to the downward side (D) of a second space part (38B) that extends to the downward side (D) from the upper-side opening (40), and a second sound-guiding space part (44) that is in an intermediary position between the downward-side opening (36) and an output opening (43). The guiding space (62) is configured from the first sound-guiding space part (19B), the first space part (20B), the second space part (38B), and the second sound-guiding space part (44).

Inventors:
Tetsuya Miyatake
Daisuke Shigematsu
Kazuya Nishimatsu
Tone Yusuke
Application Number:
JP2014135993A
Publication Date:
October 11, 2017
Filing Date:
July 01, 2014
Export Citation:
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Assignee:
Patlite Co., Ltd.
International Classes:
G10K9/12; F21S6/00; F21V33/00; G08B7/00; G10K9/22; H04R1/00; H04R1/02; H04R1/30
Domestic Patent References:
JP2009017132A
JP10023589A
JP5073698U
JP2002210092A
JP9149487A
JP2011244405A
JP2014098741A
Attorney, Agent or Firm:
Inaoka cultivation
Mio Kawasaki
Tamura Taichi



 
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