(19)
(11) EP 0 542 702 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
09.02.1994 Bulletin 1994/06

(43) Date of publication A2:
19.05.1993 Bulletin 1993/20

(21) Application number: 92830622.4

(22) Date of filing: 13.11.1992
(51) International Patent Classification (IPC)5G10H 1/34
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR LI LU NL SE

(30) Priority: 14.11.1991 IT RM910862

(71) Applicant: FA.TA.R. s.n.c. di RAGNI Cav. LAURINO & F.lli
I-62019 Recanati (MC) (IT)

(72) Inventor:
  • Ragni, Lino
    I-62019 Recanati (MC) (IT)

(74) Representative: Sneider, Massimo 
Studio Tecnico Lenzi, Via Lucania, 13
I-00187 Roma
I-00187 Roma (IT)


(56) References cited: : 
   
       


    (54) Electric and/or electronic keyboards and, in particular, church organ keyboards


    (57) Beneath each key (6,7) and carried by the keyboard support (2) there is a basically round-shaped elastic or elasticized element (8), the base of which lies on the keyboard support (2), such a round-shaped surface, which may be achieved by hot-pressing a rubber sheet, and on top of which there is a collar the aim of which is to provide a certain resistance to the key, thus distributing the deformation resistance to the key, thus distributing the deformation caused by the pressed key over the entire surface of the round-shaped element. In other words, the top collar, under the effect of the pressed key, moves parallel to itself, thus causing the uniform deformation of the entire rubber element (8).
    The keyboard support (2) consists of a board or plate (12) on which a layer of plastic material (11) is injected in such a manner as to cover the edges and the ends of the board or sheet, while leaving the middle parts uncovered, thus forming a sort of grid.





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