IP Library Granted Patent US 10,419,845
Granted Patent B2
US 10,419,845 · App. 15/951,524 · Granted Sep 17, 2019

Headphones and speaker unit

Inventors: Shun Muramoto (Osaka, JP); Akira Tamadera (Osaka, JP); Takashi Ouchi (Osaka, JP)
Assignee: ONKYO CORPORATION
H04R1/2849H04R1/10H04R1/1008H04R1/2834H04R1/2873H04R1/2876H04R5/033H04R7/16H04R1/2823H04R2420/07
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Quick Facts
Patent No.
US 10,419,845
App. No.
15/951,524
Granted
Sep 17, 2019
Kind
B2
Abstract

There are provided headphones and a speaker unit having proper acoustic properties and exhibiting excellent reproduced sound quality even in the case of providing air holes at a damping member. The headphones include a speaker unit having a diaphragm and a frame supporting an outer peripheral portion of the diaphragm, a housing configured to house the speaker unit, and a damping member made of a material exhibiting air permeability and attached to cover an opening of the frame through which a sound wave emitted from the diaphragm passes and/or an opening of the housing. The damping member has one or more air holes formed by removal of the material forming the damping member. A secondary damping member is attached to an annular edge portion defining each air hole, thereby reducing vibration of the edge portion.

Claims (10)

1. Headphones comprising:

a speaker unit including a diaphragm and a frame supporting an outer peripheral portion of the diaphragm;

a housing configured to house the speaker unit; and

a damping member made of a material exhibiting air permeability and attached to cover an opening of the frame through which a sound wave emitted from the diaphragm passes and/or an opening of the housing,

wherein the damping member has one or more air holes formed by removal of the material forming the damping member, and

one or more secondary damping members each including a hole aligned with a corresponding one of the one or more air holes in the damping member, the one or more secondary damping members being attached to an annular edge portion of the corresponding one of the one or more air holes defining the air hole.

2. The headphones according to claim 1 , wherein

each of the one or more secondary damping members is any of a paper member, a non-woven fabric member, a woven fabric member, and a porous member formed in an annular shape according to a shape of the edge portion defining each air hole.

3. The speaker unit provided at the headphones according to claim 1 , comprising:

the damping member attached to cover the opening of the frame through which the sound wave emitted from the diaphragm passes.

Assignments (3)
CHANGE OF ADDRESS Recorded Mar 9, 2022
From: ONKYO CORPORATION (ONKYO KABUSHIKI KAISHA D/B/A ONKYO CORPORATION)
To: ONKYO CORPORATION (ONKYO KABUSHIKI KAISHA D/B/A ONKYO CORPORATION)
Reel/Frame 059356/0077 →
CHANGE OF NAME Recorded Mar 9, 2022
From: ONKYO CORPORATION (ONKYO KABUSHIKI KAISHA D/B/A ONKYO CORPORATION)
To: ONKYO HOME ENTERTAINMENT CORPORATION
Reel/Frame 059356/0175 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 12, 2018
From: MURAMOTO, SHUN; TAMADERA, AKIRA; OUCHI, TAKASHI
To: ONKYO CORPORATION
Reel/Frame 045524/0133 →
Priority Claims (1)
JP 2017-085725 · Apr 24, 2017 · national
Continuity (1)
Related Publication 20180310093A1 · Oct 25, 2018