Unidirectional dynamic microphone

• US 20050226450A1
• Filed: 03/17/2005
• Published: 10/13/2005
• Est. Priority Date: 03/24/2004
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Audio-technica
• Original Assignee: Kabushiki Kaisha Audio-technica
• Inventors: Akino, Hiroshi
• Granted Patent: US 7,606,385 B2
• Time in Patent Office: Days
• US Class Current: 381/361
• CPC Class Codes: H04R 1/083 Special constructions of mouthpieces

Abstract

There is provided a unidirectional dynamic microphone provided with an air chamber for a microphone unit in a grip housing thereof, in which even if an external force is applied to the grip housing, the volume of the air chamber does not change, and also the assembling/disassembling of the microphone can be performed easily. In the unidirectional dynamic microphone in which the grip housing 100 formed in a cylindrical shape is provided; on one end side of the grip housing 100, the microphone unit 20 is supported, and on the other end side thereof, an output connector 30 is mounted; and an air chamber 201 included as a part of an audio circuit of the microphone unit 20 is provided in the grip housing 100, a cylindrical cavity sleeve 200 is provided which is supported in the grip housing 100 via shock mount members 210 and 231 exhibiting rubber elasticity and the interior of which is hollow to form the air chamber 201 for the microphone unit 20.

Claims

1. A unidirectional dynamic microphone in which a grip housing formed in a cylindrical shape is provided;

on one end side of said grip housing, a microphone unit is supported, and on the other end side thereof, an output connector connected to said microphone unit via a lead wire is mounted; and

an air chamber included as a part of an audio circuit of said microphone unit is provided in said grip housing, wherein

a cylindrical cavity sleeve is provided which is supported in said grip housing via a shock mount member exhibiting rubber elasticity and the interior of which is hollow to form said air chamber.

2. The unidirectional dynamic microphone according to claim 1, wherein a rear end part of said microphone unit is fitted on one end side of said cavity sleeve, and on the other end side of said cavity sleeve is airtightly installed a connector support cover for said output connector;

and said connector support cover is formed by a rubber elastic body to be also used as a part of said shock mount member.

3. The unidirectional dynamic microphone according to claim 2, wherein said connector support cover is formed with a pin insertion hole, and a terminal pin of said output connector is airtightly inserted through said pin insertion hole.