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JPS60220699

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DESCRIPTION JPS60220699
[0001]
FIELD OF THE INVENTION The present invention relates to speakers. BACKGROUND OF THE
INVENTION FIG. 1 shows a prior art diaphragm. The rigidity of the diaphragm can be enhanced
by the corrugation 1, the high region resonance frequency can be raised, and the high region
resonance 1 antiresonance can be controlled. However, since only the mode in the
circumferential direction of the diaphragm is focused, the effect is limited. OBJECTS OF THE
INVENTION It is an object of the present invention to provide a loudspeaker with a more rigid
diaphragm. [Summary of the Invention] The point of the present invention is to obtain a highrigidity diaphragm from K by focusing on the radial mode of the diaphragm and applying
corrugation also in the radial direction. FIG. 2 shows an embodiment of the present invention.
The corrugation 1 is the same as the prior art, and further, by attaching a corrugation 2 to the
back surface of the diaphragm, the corrugation also has an effect on radial modes, and a
diaphragm with higher rigidity can be obtained. Further, if the corrugations concentric with the
radial direction are respectively attached to the front and rear surfaces of the diaphragm, the
effect is further enhanced. According to the present invention, the rigidity of the diaphragm is
enhanced by the concentric and radial corrugations, and a speaker with excellent performance
can be obtained.
[0002]
Brief description of the drawings
[0003]
12-05-2019
1
FIG. 1 is a front view, a sectional view and a back view showing a conventional example of a
diaphragm, and FIG. 2 is a front view, a sectional view and a back view showing one embodiment
of the present invention.
1・・・・・・コルゲーション、2・・・・・・コルゲーション。 [If (force (b) (c) figure 2
12-05-2019
2
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