Patent ID: 9743192
Date: 2017-08-22
CPC Classifications: H02K,H04R

Claim:
1. A speaker comprising: a first vibrator that is connected to a diaphragm which vibrates to emit sound; a first driving unit that reciprocally vibrates the first vibrator to vibrate the diaphragm; a second vibrator that is connected to a weight member; a second driving unit that is connected to a side of the first driving unit opposite to a side on which the first vibrator is provided, and reciprocally vibrates the second vibrator on a same vibration axis as a vibration axis of the first vibrator to vibrate the weight member; and a supporting unit that supports a coupled body, configured by joining the second vibrator and the weight member, at two or more portions in the direction of the vibration axis, wherein: the coupled body includes a first magnet provided on a circumferential side of the coupled body; the supporting unit includes: the weight member includes a cylindrical housing having a base end portion which is connected to the second vibrator; the first magnet has a cylindrical shape to surround an outer circumferential side surface of the cylindrical housing; and the second magnet has a cylindrical shape to surround an outer circumferential side surface of the first magnet with a gap interposed between the second magnet and the first magnet.