VOICE COIL FOR SPEAKER DEVICE, AND SPEAKER DEVICE
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United States of America Patent
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Issued Date -
Mar 1, 2012
app pub date -
Jul 9, 2009
filing date -
Feb 26, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
To provide a thin speaker device a voice coil itself is made thin and vibration of the voice coil is efficiently transmitted to a diaphragm. The voice coil is used for a speaker device in which the vibration in one axial direction of the voice coil is transmitted to the diaphragm via a rigid vibration direction converter part, and the diaphragm is vibrated in a direction different from the one axial direction. The voice coil is formed with planarly and annularly wound conducting member and has rigidity at least in the vibration direction along the planar direction.
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