FIELD: ironmongery, particularly accessories in connection with locks, namely closures or guards for keyholes.
SUBSTANCE: device includes one cylinder lock and at least one bit-key lock having keyhole, as well as vertical tie rod displacement mechanism and blockage mechanism, which restricts vertical tie rod and cross-bar movement. The device comprises latch made of difficult-to-machine material. The latch is installed on guiding means and may close the bit-key lock keyhole. The latch is connected with finger installed on vertical tie rod displacement mechanism. Cylinder lock cross-bar displacement mechanism is kinematically connected with vertical tie rod displacement mechanism. The blocking device is made as pivoted rocking beam and may rotate and contact with cylinder mechanism by one arm thereof and with spring-loaded pawl by another arm. The pawl is axle-mounted so that user may engage the pawl with finger for cylinder mechanism removal.
EFFECT: increased resistance to breaking-in.
3 dwg
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