Lock, particularly for uprights of metal door frames

(19)

(11)

EP 0 940 532 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	24.11.1999 Bulletin 1999/47

(43)	Date of publication A2:
	08.09.1999 Bulletin 1999/36

(21)	Application number: 99104305.0

(22)	Date of filing: 03.03.1999

(51)	International Patent Classification (IPC)⁶: E05B 17/20, E05C 9/18, E05B 63/06

(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:

06.03.1998 IT MI980456

(71)	Applicant: ISEO SERRATURE Spa
	I-25055 Pisogne (Brescia) (IT)

(72)	Inventor:
	Andreoli, Gian Pietro 25040 Artogne (Brescia) (IT)

(74)	Representative: Rapisardi, Mariacristina
	Ufficio Brevetti Rapisardi S.r.l., Largo V. Alpini, 15 20145 Milano 20145 Milano (IT)

(54)	Lock, particularly for uprights of metal door frames

(57) The lock (1), particularly for uprights of metal door frames, comprises a boxlike body or casing (2) associable with a front plate (3), and having a bolt (4) inside it, the bolt (4) is operated by a cylinder through a kinematic means (5), the cylinder is operated by a key, a moving means (6) for moving the rotational fulcrum (14) of the bolt (4) from at least a first position to a second position for preventing the return of the bolt (4) into the casing (2) when the bolt (4) is subjected to an undesired return force to make it return into the casing (2).

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