Speaker grill
First Claim
Patent Images
1. A speaker arrangement comprising:
- a speaker including a speaker diaphragm, and a speaker frame arrangement fixed to said speaker diaphragm about an outer periphery thereof so that said speaker diaphragm spans across an opening in said speaker frame arrangement, a fixing portion of said diaphragm being defined by a boundary at which said diaphragm meets a periphery of said opening of said frame arrangement;
a speaker grille supported by said speaker frame arrangement, said speaker grille having a sound opening therein;
wherein said speaker diaphragm includes a diaphragm center and a diaphragm edge portion and is fixed to said speaker frame arrangement in such a manner as to define a diaphragm vibration plane having a shape that is one of circular and oval;
wherein said speaker grille includes a blocking portion including a center blocking portion arranged so as to oppose said diaphragm center of said diaphragm, and a peripheral blocking portion constituting an outer periphery of said speaker grille and surrounding at least said sound opening;
wherein said sound opening includes an opening portion that is disposed so as to oppose a region of said diaphragm between said fixing portion and said diaphragm edge portion thereof; and
wherein an effective open area provided by said sound opening of said speaker grille is at least 31% and less than 60% of an area of said diaphragm.
1 Assignment
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Accused Products
Abstract
A speaker grille is disposed in front of a speaker having a diaphragm and reproducing the sounds of 1 kHz and higher. The speaker grille is provided with a sound opening which includes a sound opening portion that opposes a region extending from the edge portion of a diaphragm to the fixing portion o n the outer circumference of the diaphragm of the speaker. The speaker grille offers superior sound characteristics, and at the same time a sufficient mechanical strength.
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Citations
17 Claims
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1. A speaker arrangement comprising:
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a speaker including a speaker diaphragm, and a speaker frame arrangement fixed to said speaker diaphragm about an outer periphery thereof so that said speaker diaphragm spans across an opening in said speaker frame arrangement, a fixing portion of said diaphragm being defined by a boundary at which said diaphragm meets a periphery of said opening of said frame arrangement; a speaker grille supported by said speaker frame arrangement, said speaker grille having a sound opening therein; wherein said speaker diaphragm includes a diaphragm center and a diaphragm edge portion and is fixed to said speaker frame arrangement in such a manner as to define a diaphragm vibration plane having a shape that is one of circular and oval; wherein said speaker grille includes a blocking portion including a center blocking portion arranged so as to oppose said diaphragm center of said diaphragm, and a peripheral blocking portion constituting an outer periphery of said speaker grille and surrounding at least said sound opening; wherein said sound opening includes an opening portion that is disposed so as to oppose a region of said diaphragm between said fixing portion and said diaphragm edge portion thereof; and wherein an effective open area provided by said sound opening of said speaker grille is at least 31% and less than 60% of an area of said diaphragm. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A speaker arrangement comprising:
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a speaker including a speaker diaphragm, and a speaker frame arrangement fixed to said speaker diaphragm about an outer periphery thereof so that said speaker diaphragm spans across an opening in said speaker frame arrangement, a fixing portion of said diaphragm being defined by a boundary at which said diaphragm meets a periphery of said opening of said frame arrangement; and a speaker grille supported by said speaker frame arrangement, said speaker grille having a sound opening therein; wherein said speaker diaphragm includes a diaphragm center and a diaphragm edge portion and is fixed to said speaker frame arrangement in such a manner as to define a diaphragm vibration plane having a shape that is oblong and rounded; wherein said speaker grille includes a blocking portion including a center blocking portion arranged so as to oppose said diaphragm center of said diaphragm, and a peripheral blocking portion constituting an outer periphery of said speaker grille and surrounding at least said sound opening; wherein said sound opening includes an opening portion that is disposed so as to oppose a region of said diaphragm between said fixing portion and said diaphragm edge portion thereof; and wherein an effective open area provided by said sound opening of said speaker grille is at least 22% and less than 60% of an area of said diaphragm. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification