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US 4,291,205 AGranted
Laminated loudspeaker diaphragm with honeycomb core and damping layers
AssigneeSony Corporation
InventorsYoshiyuki Kamon, Jun Kishikami
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Abstract
A diaphragm for an electro acoustic transducer, such as a loudspeaker, includes first and second parallel sheet members, a honeycomb core member sandwiched between the sheet members, and a damping layer interposed between each sheet member and the honeycomb core member for increasing the internal energy loss of the diaphragm.
Claims10
A diaphragm for an electro acoustic transducer, comprising:
- first and second sheet members;
- a honeycomb core member sandwiched between said first and second sheet members;
- and
- a damping layer interposed between each said sheet member and said core member for increasing the internal energy loss of the diaphragm.
1 more element
A method of constructing a diaphragm for an electro acoustic transducer, comprising the steps of:
- sandwiching a honeycomb core member between first and second sheet members;
- interposing a damping layer between each said sheet member and said core member, wherein said damping layers increase the internal energy loss of the diaphragm;
- and
- bonding said damping layers to said core member and each said sheet member by an adhesive agent.
1 more element
Dependencies are inferred from the claim text.