A movement and balancing mechanism for vertical sliding doors

(19)

(11)

EP 1 074 686 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	27.10.2004 Bulletin 2004/44

(43)	Date of publication A2:
	07.02.2001 Bulletin 2001/06

(21)	Application number: 00101359.8

(22)	Date of filing: 24.01.2000

(51)	International Patent Classification (IPC)⁷: E05D 13/00, E05D 13/12

(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:

03.08.1999 IT MI991743

(71)	Applicant: Giovannetti, Antonio
	20090 Segrate (MI) (IT)

(72)	Inventor:
	Giovannetti, Antonio 20090 Segrate (MI) (IT)

(74)	Representative: Petruzziello, Aldo et al
	Racheli & C. S p A Viale San Michele del Carso, 4 20144 Milano 20144 Milano (IT)

(54)	A movement and balancing mechanism for vertical sliding doors

(57) A movement and balancing mechanism for vertical sliding doors (2) has a return spring (38); to instantly counterbalance a variable force exerted by the spring, which is greater the more the spring is extended, a cable (36) cooperates with the spring and winds round a varying radius profile of an idle wheel (28), so that the moment exerted by the spring on the wheel is kept constant.
Preferably, the device includes an idle wheel (16) for winding the cable (12) of the door, coupled to the varying profile wheel (28) through a reduction ratio.
Use is particularly envisaged for furniture.

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