HEADREST HAVING SPEAKER

HEADREST HAVING SPEAKER

The present invention prevents a three-dimensional fabric arranged in front surfaces of speakers from flapping due to sound. In the respective front surface sides of speakers 20, 30, sound-emitting direction regulating members 23, 33 that include annular portions 231, 331 that project forward by a p...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TAKENAKA, Kazuhiro, YASUI, Kazunari, UCHIYAMA, Takao, OGURA, Yumi, FUJITA, Etsunori
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BEDS
CHAIRS
COFFEE MILLS
DEAF-AID SETS
DOMESTIC ARTICLES OR APPLIANCES
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
FURNITURE
HUMAN NECESSITIES
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PERFORMING OPERATIONS
PUBLIC ADDRESS SYSTEMS
SEATS SPECIALLY ADAPTED FOR VEHICLES
SOFAS
SPICE MILLS
SUCTION CLEANERS IN GENERAL
TRANSPORTING
VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDEDFOR
VEHICLES IN GENERAL
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Beschreibung
Zusammenfassung:The present invention prevents a three-dimensional fabric arranged in front surfaces of speakers from flapping due to sound. In the respective front surface sides of speakers 20, 30, sound-emitting direction regulating members 23, 33 that include annular portions 231, 331 that project forward by a predetermined distance are arranged. A three-dimensional fabric 421 is tensioned and arranged so as to cover the front surface sides of the sound-emitting direction regulating members 23, 33. When the three-dimensional fabric 421 is pressed against the annular portions 231, 331 configuring the sound-emitting direction regulating members 23, 33, the annular portions 231, 331 bite into the three-dimensional fabric 421 since the three-dimensional fabric 421 has a predetermined thickness. The annular portions 231, 331 are provided so as to surround diaphragms 221, 321 of the speakers 20, 30. Sound output from the speakers 20, 30 passes inside the annular portions 231, 331. However, the periphery of a region of the three-dimensional fabric 421 in which sound passes is supported by the biting of the annular portions 231, 331, thereby preventing the three-dimensional fabric 421 from flapping widely in response to the sound.