SK8855Y1 - A cylindrical locking insert, a key and a combination of a cylindrical locking insert and a key - Google Patents

Abstract

The cylindrical locking insert comprises a rotating drum (1) which is connected to the tooth and has a profiled opening for inserting the key shank (3), sluices for blocking the rotation of the rotating drum (1), and a fixed housing (2) with an opening for rotating the rotating drum. (1) and with semi-closed openings for accommodating sluices, in the circumference of the rotating drum (1) arcuate grooves (4) are formed on at least one side of the opening for inserting the key shank (3), in which sickle lamellas (5) are slidably mounted, which have contact surfaces (12) at their first end, are provided on their outer circumference with a unlocking recess (7) for radially insertion of a longitudinal locking strip (8), mounted radially slidably in the rotating drum (1) and cooperating with a corresponding longitudinal locking groove (9). ), wherein the contact surfaces (12) of the sickle lamellae (5) are divided into two, an upper contact surface (12a) adjacent to the outer circumference of the sickle lamella (5) and a lower contact surface (12b) adjacent to the inner to the circumference of the sickle lamella, the upper and lower contact surfaces (12a, 12b) on the respective sickle lamella (5) being displaced independently of each other for engagement in the corresponding coding grooves. The subject of the technical solution is also a key intended for cooperation with a cylindrical locking insert.