Speaker diaphragm and speaker using the same
First Claim
1. A speaker diaphragm, comprising a first diaphragm portion, a second diaphragm portion integrally molded with the first diaphragm portion, and a bobbin-receiving portion protruding from a back side of a connecting portion between the first diaphragm portion and the second diaphragm portion, with one end of a voice coil bobbin being inserted in and attached to the bobbin-receiving portion.
2 Assignments
0 Petitions
Accused Products
Abstract
A speaker diaphragm 1 includes a first diaphragm portion 5, a second diaphragm portion 6 integrally molded with the first diaphragm portion 5, and a bobbin-receiving portion 7 protruding from a back side of a connecting portion between the first diaphragm portion 5 and the second diaphragm portion 6, with one end of a voice coil bobbin 2 being bonded to the bobbin-receiving portion 7. The bobbin-receiving portion 7 includes a first extension 8 extending backwards from the first diaphragm portion 5 and a second extension 9 extending backwards from the second diaphragm portion 6. A bobbin-receiving groove 10 is defined between the first extension 8 and the second extension 9. The voice coil bobbin 2 is inserted in and bonded to the bobbin-receiving groove 10.
20 Citations
8 Claims
- 1. A speaker diaphragm, comprising a first diaphragm portion, a second diaphragm portion integrally molded with the first diaphragm portion, and a bobbin-receiving portion protruding from a back side of a connecting portion between the first diaphragm portion and the second diaphragm portion, with one end of a voice coil bobbin being inserted in and attached to the bobbin-receiving portion.
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7. A speaker, comprising a speaker diaphragm including a first diaphragm portion, a second diaphragm portion integrally molded with the first diaphragm portion, and a bobbin-receiving portion protruding from a back side of a connecting portion between the first diaphragm portion and the second diaphragm portion, with one end of a voice coil bobbin being inserted in and attached to the bobbin-receiving portion.
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8. A method for producing a speaker diaphragm, comprising the steps of:
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impregnating portions of a substrate to be a first diaphragm portion and a second diaphragm portion with a thermosetting resin;
supplying the thermosetting resin to a portion of a die for forming a bobbin-receiving portion to which one end of a voice coil bobbin is bonded; and
curing the thermosetting resin, whereby a portion of the thermosetting resin with which the first diaphragm portion and the second diaphragm portion are impregnated forms the first diaphragm portion and the second diaphragm portion, while another portion of the thermosetting resin supplied to the portion of the die for forming the bobbin-receiving portion forms the bobbin-receiving portion.
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Specification