EP 0053095 B1 19840912 - EMERGENCY KEY DEVICE IN A DOUBLE CYLINDER LOCK
Title (en)
EMERGENCY KEY DEVICE IN A DOUBLE CYLINDER LOCK
Publication
Application
Priority
CH 874080 A 19801126
Abstract (en)
[origin: EP0053095A1] 1. An emergency key device on a double-cylinder lock (1) comprising, in the case where a normal key (2) is inserted at one end, a locking member (4), which is rotatable from the other end by means of an emergency key (3), and further comprising a blocking coupling (11), which is displaceable in the locking member boss (5) for the purpose of alternately engaging the locking member (4) in, and disengaging it from, the two locking cylinder rotors (15, 16) arranged at the two ends of the locking member (4), the blocking coupling (11) having a groove (30; 31) at each of the end faces, and the tip of the key engaging in a shape-locking manner in these grooves (30; 31) ; characterized in that the boss (5) of the locking member (4) is provided with a planar serration (10) at at least one of the two end faces (8, 9) and in the zone opposite the locking cylinder rotors (15, 16), and in that a cam (29) is arranged at the forward end of the ward (27) of the emergency key, which cam extends beyond the outer limit of a normal key (2) and is so formed that when the emergency key (3) is fully inserted, the cam engages in one of the recesses in the planar serration (10) on the boss (5) of the locking member.
IPC 1-7
IPC 8 full level
E05B 9/10 (2006.01); E05B 17/04 (2006.01); E05B 19/20 (2006.01)
CPC (source: EP)
E05B 9/105 (2013.01)
Designated contracting state (EPC)
AT DE FR NL
DOCDB simple family (publication)
EP 0053095 A1 19820602; EP 0053095 B1 19840912; AT E9371 T1 19840915; CH 650054 A5 19850628; DE 3166077 D1 19841018; ES 507470 A0 19820901; ES 8207264 A1 19820901
DOCDB simple family (application)
EP 81810452 A 19811113; AT 81810452 T 19811113; CH 874080 A 19801126; DE 3166077 T 19811113; ES 507470 A 19811126