CZ19089U1 - Cylinder-type lock - Google Patents

Abstract

The present utility model provides a cylinder lock comprising at least a couple of moveable pin elements, the moveable pin element couple comprises a spring-loaded external pin element and an embedded spring-loaded inside pin element, one of the moveable pin elements (11, 12) is provided with a molding concave part (16) and shifts in a rotation mode relative to the other one of the moveable pin elements (11, 12) and relative to the symmetry axis line. The cylinder lock of the utility model improves protection reliability of preventing relative non-destroying damage and simplifies the structure.

Description

Technical field

The invention relates to a lock insert having at least one pair of movable dowel elements comprising a resilient outer dowel element in which the resilient inner dowel element is slidably mounted.

BACKGROUND OF THE INVENTION

A large number of locks and lock inserts with a pair of peg elements inserted in each other are known. E.g. an embodiment is known comprising an outer pin element provided with an opening in which an inner pin element actuated by a spring is slidably inserted. A disadvantage of this solution of locks and lock inserts is that the inner pin elements, with their cylindrical surface, retain the sliding function even when attempting to overcome the lock insert. In fact, when pressing the pin elements to a position in which their front plane coincides with the divider plane of the lock cylinder, the lock cylinder core is rotated until the tumbler hole edge in the lock core rests against the cylindrical surface of the inner pin element. of the torque, the inner pin element can be further compressed and the core of the lock cylinder can be rotated to unlock.

The essence of the technical solution

The task of the technical solution is to increase the resistance of existing lock inserts to attempts to overcome them in a non-destructive way. This is achieved by a lock insert with at least one pair of movably arranged pin elements formed by a spring-loaded outer pin element and a spring-loaded inner pin element thereon, according to the present invention, characterized in that one of the pair of movable pin elements has a recess and is pivoted relative to the symmetry axis of the second of the pair of movable pin elements.

In view of the reliability of the security against forcible non-destructive overcoming, it appears advantageous if the shaped recess is provided on the inner pin element at its upper portion to the associated edge of the associated tumbler hole, with a guide surface for guiding it in the outer portion. pin element.

It is expedient to be structurally simple, while maintaining safety, when the shaped recess is on the outer pin element.

For reasons of simplicity, it appears advantageous if the shaped recess is a circumferential groove in the shape of? O V.

Figures in drawings

BRIEF DESCRIPTION OF THE DRAWINGS The technical solution will be elucidated with reference to the drawings, in which schematically a cross-sectional view of the lock cylinder is shown in a plane perpendicular to the lock cylinder axis in the initial configuration of a pair of movable yarn elements. Giant. 2 is a cross-sectional view of the lock insert shown in FIG. 1 in the po35 position of the pin elements in an attempt to forcibly overcome; and FIGS.

Description of exemplary embodiments

Referring to Figures 1 and 2, the lock insert includes an outer body 1 in which a core 100 with a keyway 2 is rotatably inserted. In the groove 2 openings 3 are provided in the core 100 for a pair of tumbler tumblers 4, 5 arranged by its tapered ends 6, 7 oriented into the groove 2, and in the starting position for the lock inserts shown in FIG. 8, 9 to one of the pairs of movable dowel elements 10, H arranged in the holes □ in the outer body 1 of the lock cylinder. The pair of movable dowel elements 10, consists of

1 cl ui of the outer movably inserted pin element 10 loaded by the spring B towards the groove 3, and the inner pin element 11 mounted movably in the outer pin element 10 in the direction of the symmetry axis O and simultaneously pivoted relative to the axis of symmetry. The inner pin element 11 is loaded by a spring 14 arranged between it and the outer pin element 10). In the embodiment of Figs. 1 and 3, the inner pin 14 is provided with a recess 16 under the upper face 15, preferably a V-shaped groove and on the opposite face a projection 17 for retaining the spring 14 and a guide surface 18 to guide the inner pin 10 and the outer pin. of the pivotable element 10.

In Fig. 4 there is an embodiment facilitating the pivoting of an inner pin element 11 provided with a shaped recess 16. In this embodiment, the spring 14 between the outer pin element 10 and the inner pin element 11 is threaded on the shaft 19 of the inner pin element 11. also provided with a guide surface 18 and an auxiliary guide surface

The bore 21 in the outer dowel element 10 is shaped with respect to the embodiment of the inner dowel element H15 It is not necessary for the shape recess 16 to be on the inner dowel element 1k. to allow the outer pin element 10 to be tilted, it is received in the outer body 1 with a corresponding clearance.

Attempting to forcefully overcome, i.e. without the use of an appropriate wrench, rotates the core 100 20 as shown in FIG. 2. With this rotation of the core 100, the shape recess 16 in this case provided on the inner pin element 10 abuts the edge of the hole 3 for receiving the tumblers 5, 6, thereby preventing further rotation of the core 100 so that the lock cylinder remains locked.

Industrial applicability

The technical solution is particularly useful for mechanical security systems of motor vehicles.

Claims (4)

PROTECTION REQUIREMENTS A lock insert having at least one pair of movable dowel elements comprising a resilient outer dowel element and a dowel inner dowel element therein, characterized in that one of the pair of movable dowel elements (10, II) is provided with a recess 30 (16) and is inserted in pivot relative to the symmetry axis to the other of the pair of movable dowel elements (10, 11), Lock insert according to claim 1, characterized in that the shaped recess (16) is provided on the inner pin element (11) at its upper part associated with the edge of the opening (3) in the lock insert core (100) for receiving the associated tumblers (5). , 6), with the bottom 35 of the inner pin element (11) is a guide surface (18) for guiding it in the outer pin element (10). Lock insert according to claim 1, characterized in that the shaped recess (16) is on the outer pin element (10). Lock insert according to claims 1 and 2 or 1 and 3, characterized in that the shaped recess (16) is a V-shaped groove.