(19)
(11) EP 0 474 167 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
14.10.1992 Bulletin 1992/42

(43) Date of publication A2:
11.03.1992 Bulletin 1992/11

(21) Application number: 91114778.3

(22) Date of filing: 02.09.1991
(51) International Patent Classification (IPC)5H04R 1/02
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI NL SE

(30) Priority: 04.09.1990 JP 233632/90

(71) Applicant: KABUSHIKI KAISHA SEIDENKO
Toshima-ku, Tokyo-To (JP)

(72) Inventor:
  • Iwano, Akihiro
    Tokorozawa-shi, Saitama-ken (JP)

(74) Representative: Dr. Elisabeth Jung Dr. Jürgen Schirdewahn Dipl.-Ing. Claus Gernhardt 
Postfach 40 14 68
80714 München
80714 München (DE)


(56) References cited: : 
   
       


    (54) Method of mounting loudspeakers and device therefor


    (57) A loudspeaker (5) is mounted on the surface board of a ceiling with front and back sides by: forming in the surface board an opening (1) for mounting the speaker (5); preparing an annular back plate (3) of deformable construction and of a size, in undeformed state, greater than the opening size; deforming the back plate into a shape in which it can be passed through the opening; passing the deformed back plate (3) through the opening (1) from the front side to the back side; restoring the back plate to its undeformed state; placing the speaker in mounting position over and in the opening and against the board on its front side; and connecting the speaker (5) and back plate (3) to clamp the board therebetween and thereby to securely mount the speaker. The entire procedure is carried out efficiently from the front side of the surface material, whereby there is no necessity of a separate access to the back side.







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