A diaphragm includes: a plate-shaped body having a pair of main surfaces facing each other; and a connection portion connected to one of the main surfaces of the plate-shaped body, in which the connection portion has a function of transmitting vibration of an exciter to the plate-shaped body from a side opposite to a side where the plate-shaped body is located, the connection portion includes a spacer and an adhesive portion having a lower hardness than the spacer, and a thickness of the connection portion is defined by a thickness of the spacer.
DIAPHRAGM, DIAPHRAGM WITH EXCITER, AND VEHICULAR DIAPHRAGM
2024-05-23
Patent
Electronic Resource
English
IPC: | H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS , Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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