Speaker device
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United States of America Patent
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Nov 12, 2013
Grant Date -
Jun 9, 2011
app pub date -
Dec 1, 2010
filing date -
Dec 7, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A speaker device has a magnet, outer yokes, and inner yokes which are assembled so that a magnetic gap is formed between the outer yoke and inner yokes over which a magnetic flux which is generated from the magnet cuts across. A voice coil unit which is linked to a diaphragm is disposed within the magnetic gap, and positioning members determine the positions of the inner yokes and the outer yokes which attach magnetically to the magnet such that a magnetic gap is formed. The speaker device has a magnetic circuit of which the construction facilitates assembly, and recycling of various individual parts is relatively easy.
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