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US 2012/0237076 A1Published application
Speaker diaphragm, and speaker and handheld terminal device using said speaker diaphragm
AssigneePanasonic Corporation
InventorMitsukazu Kuze
Life of this patent
Estimating the term…
Abstract
A speaker diaphragm includes a body vibrating to generate a sound, an edge fusion-bonded to an outer circumference portion of the body, a projection provided on an upper surface of the edge, and a gasket provided on a lower surface of the edge. The edge is made of material different from that of the body. The projection is made of material identical to that of the edge. The gasket is made of material identical to that of the body. A speaker including the diaphragm has waterproof property by itself.
Claims12
A speaker diaphragm comprising:
- a body having an outer circumference portion and vibrating to generate a sound;
- an edge provided on the outer circumference portion of the body, the edge being made of material different from material of the body, and molded together with the body by a double molding;
- a projection provided on an upper surface of the edge, the projection being made of material identical to the material of the edge;
- and
- a gasket provided on a lower surface of the edge, the gasket being made of material identical to the material of the body.
2 more elements
A speaker diaphragm comprising:
- a body having an outer circumference portion and vibrating to generate a sound;
- an edge fusion-bonded onto the outer circumference portion of the body, the edge being made of material different from material of the body;
- a projection provided on an upper surface of the edge, the projection being made of material identical to the material of the edge;
- and
- a gasket provided on a lower surface of the edge, the gasket being made of material identical to the material of the body.
2 more elements
Dependencies are inferred from the claim text.