Lock with a safety device for enabling a key to be introduced into the lock

(19)

(11)

EP 0 819 812 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	16.09.1998 Bulletin 1998/38

(43)	Date of publication A2:
	21.01.1998 Bulletin 1998/04

(21)	Application number: 97830125.7

(22)	Date of filing: 19.03.1997

(51)	International Patent Classification (IPC)⁶: E05B 17/14, E05B 35/14, E05B 47/00, E05B 19/00

(84)	Designated Contracting States:
	DE ES FR GB

(30)

Priority:

19.07.1996 IT TO960633

(71)	Applicant: MOTTURA SERRATURE DI SICUREZZA S.p.A.
	I-10057 S.Ambrogio, (Torino) (IT)

(72)	Inventor:
	Guzzinati, Alberto 10057 Sant'Ambrogio (Torino) (IT)

(74)	Representative: Notaro, Giancarlo et al
	c/o Buzzi, Notaro & Antonielli d'Oulx srl, Corso Fiume 6 10133 Torino 10133 Torino (IT)

(54)	Lock with a safety device for enabling a key to be introduced into the lock

(57) A safety lock provided with a safety device (8) including a rotatable cylindrical body (9) which is normally locked in a position in which the auxiliary keyhole (14) of the rotatable cylindrical body (9) is rotated with respect to the main heyhole (6) of the lock. The key (7) is provided with permanent magnets (25) which operate pins (21) pivotally supported by the rotatable cylindrical body (9) in order to arrange these pins in pre-determined positions in which they enable key elements (16) which keep the rotatable cylindrical body (9) locked to be retracted. The key is thus able to rotate the cylindrical body (9) until aligning the auxiliary keyhole (14) with the main keyhole (6), so as to able to operate the inner mechanism of the lock.

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