Peripherally reinforced laminated loudspeaker diaphragm

Details Peripherally reinforced laminated loudspeaker diaphragm Peripherally reinforced laminated loudspeaker diaphragm

1978-11-27

1980-04-15

Stellar, George G.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

17981R, 181167, 181170, 181171, H04R 710, H04R 718

Patent

active

041985508

ABSTRACT:
A diaphragm for a loudspeaker includes first and second sheet members between which a core member is sandwiched and secured so that the core member has peripheral edge portions extending between the edges of the sheet members and at which the core member is of relatively low strength. A strip-like edging member, preferably of a thermosetting resin, is secured to the peripheral edge portions of the core member and to the edges of the sheet members for increasing the rigidity of the diaphragm at its periphery and preventing unwanted vibrations thereat. A damper member may be secured to the diaphragm adjacent the edging member for movably securing the diaphragm to a loudspeaker frame.

REFERENCES:
patent: 3111187 (1963-11-01), Barlow
patent: 4122314 (1978-10-01), Matsuda et al.

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