Patent ID: 7974434

Claim:
A loudspeaker comprising: a frame; a magnetic circuit supported by the frame; a voice coil disposed in a magnetic gap of the magnetic circuit so as to be able to vibrate freely in the gap; a diaphragm connected to the frame at an outer rim thereof via a first edge and connected to the voice coil at an inner rim thereof; a damper connected to the voice coil at an inner rim thereof, the damper being closer to the magnetic circuit than the diaphragm is close to the magnetic circuit; a second edge having first and second ends for respectively connecting an outer rim of the damper to the frame; and a third edge having first and second ends each coupled to the respective first and second ends of the second edge, wherein the second edge has a protrusion protruding one of toward the diaphragm and toward the frame opposite to each other; and the third edge has a protrusion protruding at least in an opposite direction in which the protrusion of the second edge protrudes.