FIELD: construction.
SUBSTANCE: key (1) comprises a key blade (11) made with two wide surfaces (12 and 18) with longitudinal grooves (13) made on them and two narrow surfaces (16 and 30) with transverse recesses (14) of various lengths and shapes, made on a narrow surface (30) of the key blade. An additional longitudinal groove (15) is made on one of the wide surfaces of the key blade (12) or (18), in which a rectangular through opening (4) is made, in which a movable cylindrical element (2) with a central drilled opening (2a) is freely mounted on a pin (3) with a radial clearance for possible radial movement of the movable cylindrical element (2) thereto, since the outer diameter of the movable cylindrical element (2) is equal to the key blade (11) thickness.
EFFECT: increased protection level.
2 cl, 10 dwg
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|
RU2108436C1 |
