A system for controlling the movement of sliders in musical instruments with pipes and the like

(19)

(11)

EP 1 480 197 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	23.11.2005 Bulletin 2005/47

(43)	Date of publication A2:
	24.11.2004 Bulletin 2004/48

(21)	Application number: 04011017.3

(22)	Date of filing: 10.05.2004

(51)	International Patent Classification (IPC)⁷: G10B 3/06

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL HR LT LV MK

(30)

Priority:

20.05.2003 IT CN20030011

(71)	Applicant: Eltec Automazioni S.n.c. di Ramondetti Silvio e Galiasso Giovanni
	12100 Cuneo (IT)

(72)	Inventors:
	Ramondetti, Silvio, Eltec Automazioni S.n.c. 32, Via Monsignor Riberi 12100 Cuneo (IT) Galiasso, Giovanni, Eltec Automazioni S.n.c. 32, Via Monsignor Riberi 12100 Cuneo (IT)

(54)	A system for controlling the movement of sliders in musical instruments with pipes and the like

(57) The system comprises:

an air-fed organ case (4) and comprising orifices (5) which communicate with a chamber underlying the musical pipes (3), whose foot is engaged in a hole provided in said chamber,
sliders (6) that control the flow of air through each orifice (5), while at least one slider (6) is actuated with the aid of a respective key (7),
first position sensor means (14), arranged to sense the travel of each key (7),
second position sensor means (12), arranged to sense the travel of each slider (6),
and electrical / electronic circuit means (25, 26, 27, 49), which establish a correspondence between the displacements of the first position sensor means (14) and those of the second position sensor means (12) and, with the intermediary operation of respective actuator means (11) move at least a corresponding slider (6). According to the invention, said actuator means (11; 68) comprise a movable member (21, 23) which is driven to perform reciprocating movements proportionately to the movements of the respective key (7) and controls, directly and in correspondingly proportional fashion, the movement of at least a respective slider (6) both in its opening travel and in the closing travel with respect to the corresponding orifice (5).