Loading patent…
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsMitsukazu Kuze, Hiroyuki Takewa, Mikio Iwasa
Estimating the term…
The surrounding structure of the loudspeaker forms an annular structure, including attaching parts and curved part. The cross section of the curved part is in a hollow and approximately elliptical form. The height along the major axis of the ellipse is made parallel to the center axis of the vibrating diaphragm of the loudspeaker while the width along the major axis of the ellipse is set in the direction orthogonal to the center axis of the vibrating diaphragm. In the elliptical surrounding structure having such a structure, the width in the cross section of the surrounding structure of the loudspeaker can be made narrow in comparison with a semi-circular surround, whereby the linearity of the amplitude and the maximum displacement are increased.
A surrounding structure of a loudspeaker, which is used for a loudspeaker having a vibrating diaphragm and a frame, having an annular structure that an outer periphery of the surrounding structure of the loudspeaker is secured to said frame, an inner periphery of the surrounding structure of the loudspeaker is secured to the outer periphery of said vibrating diaphragm and a curved part encircles the outer periphery of said vibrating diaphragm, wherein
Dependencies are inferred from the claim text.