Dome-shaped diaphragm and speaker
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United States of America Patent
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Aug 18, 2009
Grant Date -
Nov 24, 2005
app pub date -
May 17, 2005
filing date -
May 18, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dome-shaped diaphragm includes a dome part which is formed in a dome-like shape and is convex forward in an oscillating direction, a neck part which is provided in continuation to an outer periphery of the dome part, and an edge including a roll part which is formed in a curved shape and is convex forward in the oscillating direction, and continued to the neck part at an inner peripheral edge thereof, wherein the neck part is provided with a curved portion which is convex backward in the oscillating direction, and an outer periphery of the curved portion is smoothly continued to an inner periphery of the roll part.
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Family
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