Patent ID: 8879776
Filing Date: 2014-11-04
Classification: H04R

Abstract:
1. A speaker comprising: a diaphragm which is cylindrical and has closed ends; an edge which supports the diaphragm in a manner which allows the diaphragm to vibrate in a vibrating direction; a voice coil bobbin around which a voice coil is wound and which is connected to the diaphragm; and a magnetic circuit for driving the voice coil, wherein the diaphragm has a circular cross-sectional shape in a short direction, wherein the diaphragm is formed to include a first diaphragm and a second diaphragm, wherein the first diaphragm includes: wherein the second diaphragm includes: wherein the first flange of the first diaphragm and the second flange of the second diaphragm are connected to each other.