(19)
(11) EP 0 991 295 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.07.2006 Bulletin 2006/29

(43) Date of publication A2:
05.04.2000 Bulletin 2000/14

(21) Application number: 99402359.6

(22) Date of filing: 28.09.1999
(51) International Patent Classification (IPC): 
H04R 1/02(2006.01)
H04R 1/28(2006.01)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 28.09.1998 JP 27302898

(71) Applicant: MURATA MANUFACTURING CO., LTD.
Nagaokakyo-shi Kyoto-fu 617-8555 (JP)

(72) Inventor:
  • Nakamura, Takeshi, Murata Manufacturing Co., Ltd.
    Nagaokakyo-shi, Kyoto-fu 617-8555 (JP)

(74) Representative: Joly, Jean-Jacques et al
Cabinet Beau de Loménie 158, rue de l'Université
75340 Paris Cédex 07
75340 Paris Cédex 07 (FR)

   


(54) Speaker and speaker device


(57) A speaker has a very small size and is arranged to emit sound waves in a non-directional manner. The speaker includes a case (12) and a speaker unit (16) attached to a plate (14) provided at an opening of the case (12). The speaker is arranged so that the speaker unit (16) is mounted or attached to a floor or support surface such that a space formed by the case (12), the plate (14) and the speaker unit (16) is airtight and so that the back-and-forth motion of a vibrator of the speaker unit (16) generates expansion and contraction of the case (12).







Search report