The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 2018
Filed:
May. 27, 2015
Applicant:
Anden Co., Ltd., Anjo, Aichi-pref., JP;
Inventors:
Susumu Miyata, Anjo, JP;
Makoto Tsuruta, Anjo, JP;
Assignee:
ANDEN CO., LTD., Anjo, Aichi-pref., JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/28 (2006.01); H04R 1/02 (2006.01);
U.S. Cl.
CPC ...
H04R 1/2826 (2013.01); H04R 1/023 (2013.01); H04R 1/025 (2013.01); B60Y 2410/10 (2013.01); B60Y 2410/114 (2013.01);
Abstract
A sound production device for a vehicle includes: a speaker that causes a diaphragm to vibrate thereby producing sound; and a housing receiving the speaker and having a sound passage through which the sound produced by the speaker passes and a sound emission hole that causes the sound passed through the sound passage to externally emit. Plural resonant chambers having different resonant frequencies are defined in the sound passage, such that the sound passage has a labyrinth structure that is able to prevent a foreign substance form entering the diaphragm from the sound emission hole.