SK992009U1 - Cylinder 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

Interlocking insert

Technical field

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

State of the art

A large number of locks and lock inserts with a pair of pegs inserted in each other are known. E.g. there is known an embodiment comprising an outer pin element provided with an opening in which a spring-actuated inner pin element 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 cylinder. In fact, when the pin elements are pressed to a position in which their front plane coincides with the separating plane of the lock insert, the core of the lock insert is rotated until the edge of the stop opening in the lock core rests against the cylindrical surface of the inner pin element. At this point, using the torque, it is possible to further compress the inner pin element and to rotate and unlock the core of the lock cylinder.

The essence of the technical solution

The task of the invention is to increase the resistance of existing lock inserts to attempts to overcome them in a non-destructive manner. This is achieved by a lock insert with at least one pair of movably arranged pin elements formed by a sprung outer pin element and a inner pin element springed therein, according to the present invention, which is characterized in that one of the pair of movable pin elements. \ \

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The elements are provided with a shape recess and are pivoted relative to the symmetry axis of the second of the pair of movable pin elements.

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

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

For the sake of simplicity, it is advantageous if the shaped recess is a V-shaped groove.

Figures in the drawings

BRIEF DESCRIPTION OF THE DRAWINGS The technical solution will be elucidated with reference to the drawings in which FIG. 1 is a cross-sectional view of the lock insert in a plane perpendicular to the lock insert axis in the starting arrangement of a pair of pin elements. Fig. 2 is a cross-sectional view of the lock insert of FIG. 1 in the position of the movable pin elements in an attempt to forcibly overcome, and FIG. 3, 4, 5 are variants of a pair of movable dowel elements.

Description of exemplary embodiments

According to FIG. 1 and 2, the lock insert comprises an outer body 1 in which a core 100 with a keyway 2 is pivotable. In the groove 2 openings 3 provided in the core 100 for a pair of coaxially arranged detents 4.5 with their conical ends 6.7 oriented into the groove 2, wherein in the starting position for the lock inserts when unlocking as shown in FIG. 1, the face stoppers 8.9 abut one of a pair of movable pin elements 10, 11 disposed in the holes 12 in the outer body 1 of the lock cylinder. The pair of movable pin elements 10, 11 consists of an outer movably inserted pin element 10 loaded by a spring 13 towards the groove 3 and an inner pin element 11 mounted movably in the outer pin element 10 in the direction of the symmetry axis O and pivoted relative to the axis of symmetry. The inner pin element 11 is loaded by a spring 14 disposed between it and the outer pin element 10. In the embodiment of FIG. 1 and 3, the inner pin element 11 is provided below the upper face 15 with a recess 16 preferably with a V-shaped groove and on the opposite face with a projection 17 for retaining the spring 14 and a guide surface 18 for guiding the inner pin element 11 and the outer pin element 10 .

In FIG. In this embodiment, the spring 14 between the outer pin element 10 and the inner pin element 11 is threaded on the shaft of the inner pin element H. The end of the shaft 19 of the inner pin element 11 is also provided with a guide surface 18. and an auxiliary guide surface 20. The opening 21 in the outer pin element 10 is shaped with respect to the embodiment of the inner pin element Π.

It is not a requirement that the shaped recess 16 be on the inner pin element H. The embodiment of FIG. 5 shows a circumferential groove 14 provided on the outer pin element 10. In order to be able to tilt the outer pin element 10, it is mounted in the outer body J with a corresponding clearance.

Attempting to forcibly overcome, i.e. without the use of an appropriate key, rotates the iadral00 - as shown in FIG. 2. In this rotation of the core 100, the shape recess 15, in this case provided on the inner pin element U, rests against the edge of the opening 3 for receiving the stops 5, 6 and thereby prevents further rotation of the core 100 so that the lock cylinder remains locked.

'ABOUT

Industrial usability:

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

Claims (4)

Protection claims 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, 11) is provided with a shape recess (16) and is pivoted relative to the axis of symmetry of the second of the pair of movable pin 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 with an associated edge of the opening (3) in the lock insert core (100) for receiving the associated stops (5). 6), wherein at the bottom of the inner pin element (11) there 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 claim 1 and 2 or 1 and 3, characterized in that the shaped recess (16) is a V-shaped groove.