LOCK Russian patent published in 2005 - IPC

FIELD: ironmongery, particularly locks.

SUBSTANCE: lock comprises body with lid and rotary disc with orifices in which locking pins are inserted. Lock also has locking bar, locking bar movement mechanism including shaft-handle and plunger cooperating with locking pins, end key having orifices located coaxially to locking pin axes. Rigidly installed in body is cylinder in which coaxial orifices for locking pins receiving are formed. Lid is put on cylinder. Cylinder and lid have depressions for end key formed together one with another and coaxial orifices for shaft-handle receiving. Locking bars installed in body are located in different planes. Lock has inner handle in which slots are formed. Number of outer slots corresponds to number of locking bars. There is one inner slot that is formed in handle. Rollers cooperating with locking bars and with rotary disc are arranged in slots. Rollers also have grooves for rollers receiving. Rigidly mounted on shaft-handle is bush with stepped bead cooperating with plunger freely installed on it and with inner handle. Inner handle and shaft-handle are pivotally connected one with another by ties. Protective washer is freely installed on shaft-handle. Locking pins are formed of at least two releasable parts. One part is made as stepped rod, another one is formed as pin adapted to move into cylindrical guiding means. Stops fixed in coded position are located in end key orifices.

EFFECT: increased resistance to lock breakage, improved operational reliability.

6 dwg