EP0625624B1 - Method of setting lock combinations in a cylinder lock - Google Patents

Abstract

The invention relates to a lock cylinder, in which the end faces of the tumbler pins (4) confronting one another in the opening position and the end faces of the associated counterpins (5) rest one on the other in a plane-parallel manner. It is thereby possible to fix the tolerance dimension (X) constructively, for example to set it at zero. It is consequently possible, furthermore, to design these pins with a larger diameter. As a result, the lock cylinder is burglar-proof, since the pins can be sheared off less easily or can no longer be sheared off at all. The cylinder plug (2) is provided on its outer surface (49), in the region of the tumbler pins (4), with a face extending parallel to its axis of rotation. Moreover, the different design of tumbler pins (4) and the possibility of their combined use afford an enormous increase in the lock combinations. <IMAGE>

Description

The invention relates to a method for setting locking permutations on locking cylinders with a cylinder housing in which a cylinder core with a circular cross-section with a longitudinal profile is arranged in the key channel for a flat key with variable recesses provided on at least one broad side of the flat key or the like, and with it to the core longitudinal axis ( Rotation axis) transverse pin tumblers, which are each arranged in a row or in rows, and which comprise at least one core pin, the matching recesses in the flat key opposite, each core pin is assigned a counter-adjustable spring pin, each in a bore arranged in the cylinder housing against Spring force is displaceable, wherein the core pins and the counter pins are arranged in the open position with opposite surfaces in the locking plane of the lock, the core pin and counter pin on the one the facing end faces in the open position of the locking cylinder are formed with surfaces lying flat on top of one another and provided orthogonally to a longitudinal center axis of the core pin and the counter pin running through the longitudinal axis of rotation, or that the core pin and counter-pin are formed on the mutually facing end faces with convex-concave surfaces lying against one another in the open position of the locking cylinder, and that the cylinder core in the region of its bore receiving the core pin of its circumferential surface with at least the diameter of the core pin running parallel to its axis of rotation corresponding straight surface is provided.

Specialist companies offer unlocking methods, training in such unlocking methods through demonstration events and video films, as well as opening tools, with which locking cylinders of various types can be opened in seconds relatively silently and without leaving any major traces. This poses a major problem in all areas, e.g. B. in hospitals (drug cabinets), for vending machine displays, for jewelry boxes, showcases and other valuables containers, dar (fundamental unlocking methods of lock-pin and disc lock locks, prospectus by Jerry Hoffman of the HPC International a Division of HPC, Inc., Schiller Park , IL 60176, USA).

In the cylinder locks known to date, the mutually facing surfaces of the tumbler and the associated counter pins, which are in the unlocked position in the locking plane, are of spherical design. As a result, relatively large tolerances are required, which force a relatively small diameter of the core and counter pins. As a result, such locks, e.g. B. after the core pulling method, break open by shearing the pins.

A lock cylinder according to the preamble is previously known from US-A-3 393 542. However, the closing permutation has also not yet been optimally used here.

From CH-A-405 099 a firing cylinder is known with a rotatable core provided with pin tumblers arranged on a fixed cylinder housing and with a continuous recess provided in the core for receiving a flat key, at least some of the pin tumblers being arranged reversibly in the inner cylinder are and the flat key on its two flat sides on both sides of its longitudinal center line has two rows of depressions of different lengths and depths arranged one behind the other, the depressions of one row being offset with respect to those of the adjacent row and optionally by appropriately changing the pin tumblers in the cylinder core can be assigned to one or the other row of the depressions provided on the flat key. Because there are always only a number of specializations If one or the other side of the flat key is used, the locking permutation is not significantly increased.

EP-A-0 297 929 shows a locking cylinder with hollow pin tumblers and corresponding pins arranged therein which can engage in recesses in a flat key.

The invention has for its object to provide a method for adjusting locking permutations on locking cylinders of the type required in order to significantly increase the security against unlocking.

Definition: "Unlocking security" means the degree of difficulty in non-destructively overcoming the locking elements of a locking cylinder with tools without knowledge of the associated key.

The object is achieved by the features set out in the patent claim .

The locking lug can be given a variety of variations by corresponding rotation, offset tumbler holes in subordinate keys - for example 30 degrees, 60 degrees, 90 degrees, 120 degrees, 150 degrees, 180 degrees, 210 degrees, 240 degrees, 270 degrees, 300 degrees , 330 degrees, 360 degrees. In the case of master keys, a locking ring is milled so that the master key can lock all of these locks. In the case of master key systems with normal keys, the system is usually built using various profiles and shared tumbler pins. However, these split tumbler pins reduce the security of the corresponding locking cylinder. In the previously known system, tumbler pins are completely omitted so that systems can be created. This also affects security. A very large number of locking permutations can thus be achieved by rotating the locking lug in the circumferential direction.

Fig. 1

einen Schließzylinder in einem orthogonal zur Drehachse des Kerns geführten Querschnitt, bei einer zum Stande der Technik zählenden Bauart;

Fig. 2

einen weiteren Schließzylinder im Querschnitt entsprechend Fig. 1;

Fig. 3

bei einer weiteren Ausführungsform ebenfalls einen Querschnitt durch einen Schließzylinder;

Fig. 4

eine Draufsicht auf einen Kern, Zuhaltungsstiften und Gegenstiften und Einfräsungen bei verschiedenen Durchmessern für derartige Stifte;

Fig. 5

einen weiteren Schließzylinder, ebenfalls in einem orthogonal zur Drehachse des Kerns geführten Querschnitt;

Fig. 6

eine Ausführungsform gemäß der Erfindung, ebenfalls in einem orthogonal zur Längsachse des Kerns geführten Querschnitt;

Fig. 7

eine weitere Ausführungsform der Erfindung im Querschnitt;

Fig. 8

eine Ausführungsform der Erfindung, ebenfalls im Querschnitt, teils abgebrochen dargestellt;

Fig. 9

eine Ausführungsform der Erfindung, teils in einem orthogonal zur Drehachse des Kerns geführten Querschnitt, teils abgebrochen dargestellt;

Fig. 10

eine Ausführungsform eines Schließzylinders in einem orthogonal zur Drehachse geführten Querschnitt, teils abgebrochen dargestellt;

Fig. 11

eine Ausführungsform im Querschnitt;

Fig.

12 einen Querschnitt bei einer weiteren Konstruktion;

Fig. 13

eine Einzelheit aus Fig. 12 in größerem Maßstab;

Fig. 14

eine Draufsicht zu Fig. 13;

Fig. 15

Bohrbilder an einem Schlüssel, gesehen durch die Stiftlochbohrungen an einem Kern gemäß der Erfindung;

Fig. 16

einen Schlüssel gemäß der Erfindung, im Längsschnitt, teils abgebrochen dargestellt mit verschiedenen Einsenkungen;

Fig. 17

verschiedene Bohrbilder gemäß der Erfindung, passend zu den Einsenkungen;

Fig. 18

ebenfalls einen Schlüssel gemäß der Erfindung im Längsschnitt, teils abgebrochen dargestellt;

Fig. 19

eine Draufsicht zu Fig. 18;

Fig. 20

einen Schließzylinder, teils herausgebrochen dargestellt;

Fig. 21

einen Schnitt nach der Linie XXI - XXI der Fig. 20;

Fig. 22

einen Schließzylinder gemäß der Erfindung, teils herausgebrochen dargestellt, bei einer weiteren Konstruktion;

Fig. 23

eine Stirnansicht zu Fig. 22 gemäß der Erfindung in Blickrichtung des Pfeiles A in Fig. 22;

Fig. 24

einen zu Fig. 22 passenden Flachschlüssel gemäß der Erfindung in der Draufsicht;

Fig 25

verschiedene Variationsmöglichkeiten gemäß der Erfindung für die Anordnung der Schließnase des exzentrischen Zuhaltungsstiftes;

Fig. 26

einen passenden Hauptschlüssel gemäß der Erfindung zu der Ausführungsform gemäß Fig. 22;

Fig. 27

einen Schnitt nach der Linie XXVII - XXVII der Fig. 29;

Fig. 28

einen Schnitt nach der Linie XXVIII - XXVIII der Fig. 27;

Fig. 29

einen Schließzylinder gemäß der Erfindung bei einer weiteren Ausführungsform teils in der Seitenansicht, teils herausgebrochen dargestellt;

Fig. 30

einen Schnitt nach der Linie XXX - XXX der Fig. 29.

In the drawing, the invention is illustrated - partly schematically - using several exemplary embodiments. Show it:

Fig. 1

a lock cylinder in a cross section guided orthogonally to the axis of rotation of the core, in a type which belongs to the prior art;

Fig. 2

another lock cylinder in cross section corresponding to FIG. 1;

Fig. 3

in a further embodiment also a cross section through a locking cylinder;

Fig. 4

a plan view of a core, tumbler pins and counter pins and milled in different diameters for such pins;

Fig. 5

a further lock cylinder, likewise in a cross section guided orthogonally to the axis of rotation of the core;

Fig. 6

an embodiment according to the invention, also in a cross section orthogonal to the longitudinal axis of the core;

Fig. 7

a further embodiment of the invention in cross section;

Fig. 8

an embodiment of the invention, also shown in cross section, partly broken;

Fig. 9

an embodiment of the invention, partly shown in a cross-section orthogonal to the axis of rotation of the core, partly broken;

Fig. 10

an embodiment of a locking cylinder in a cross section orthogonal to the axis of rotation, shown partially broken;

Fig. 11

an embodiment in cross section;

Fig.

12 shows a cross section in a further construction;

Fig. 13

a detail of Figure 12 on a larger scale.

Fig. 14

a plan view of Fig. 13;

Fig. 15

Hole patterns on a key, seen through the pin holes on a core according to the invention;

Fig. 16

a key according to the invention, shown in longitudinal section, partly broken off with different depressions;

Fig. 17

different drilling patterns according to the invention, suitable for the depressions;

Fig. 18

also shown a key according to the invention in longitudinal section, partly broken;

Fig. 19

a plan view of Fig. 18;

Fig. 20

a lock cylinder, shown partly broken away;

Fig. 21

a section along the line XXI - XXI of Fig. 20;

Fig. 22

a lock cylinder according to the invention, shown partly broken away, in a further construction;

Fig. 23

a front view of Figure 22 according to the invention in the direction of arrow A in Fig. 22.

Fig. 24

a flat key according to the invention matching FIG. 22 in plan view;

Fig. 25

Various possible variations according to the invention for the arrangement of the locking lug of the eccentric tumbler pin;

Fig. 26

a matching master key according to the invention to the embodiment according to FIG. 22;

Fig. 27

a section along the line XXVII - XXVII of Fig. 29;

Fig. 28

a section along the line XXVIII - XXVIII of Fig. 27;

Fig. 29

a lock cylinder according to the invention in a further embodiment partly shown in side view, partly broken away;

Fig. 30

a section along the line XXX - XXX of Fig. 29.

In all of the drawing figures, reference numeral 1 denotes a cylinder body, 2 a cylinder core, 3 a driver, 4 a tumbler pin, 5 a counter pin, 6 a rivet, 7 a tumbler spring and 8 a flat key.

1 shows a design according to the prior art. The dimension X designates the tolerance, since the end face of the tumbler pin 4 is convex on its end face 9 facing the counter pin 5, while the counter face 10 of the counter pin 5 runs orthogonally to the longitudinal axis 11 of the tumbler pin 4 and the counter pin 5, that is to say it is flat. Because of the relatively large tolerance dimension X, the diameter of the tumbler pin 4 can only be made small.

In contrast, an embodiment according to the invention is illustrated in FIG. 2. In this case, the end face 9 of the tumbler pin 4 and the counter surface 10 of the counter pin 5 are both flat and extend orthogonal to the longitudinal axis 11. As a result, the tolerance X is practically zero at this point. It can be predetermined in a constructive manner. At this point - in the closing plane - the cylinder core 2 is also provided with a surface 12 orthogonal to the longitudinal axis 11 at least over a width which corresponds to the diameter of the tumbler pin 4 and the counter pin 5.

In the embodiment shown in FIG. 3, the end face 9 is designed to be convex to match the concave counter surface 10, so that both surfaces 9 and 10 lie snugly on top of one another, as a result of which the tolerance dimension X is also zero.

Fig. 4 shows how the surfaces 12 on the cylinder core for different diameters of tumbler pins 4 are to be designed. The left surface 12 - seen in the drawing plane of FIG. 4 - is designed for a diameter of five millimeters, the middle surface 12 for a diameter of three and the right surface for a diameter of seven millimeters.

In the embodiment according to FIG. 5, the same reference numerals have been used for parts with the same function as in the previously described embodiments. The embodiment according to FIG. 5 differs from the previously described embodiments in that a tumbler pin 4a or 4b and an associated counter pin 5a or 5b, respectively, are arranged parallel and at a distance from one another, symmetrically to the axis of rotation of the cylinder core 2 are. As in the previously described and all other embodiments, the counter pins 5 and 5a, 5b are supported against the restoring force of tumbler springs 7 and 7a, 7b, which in turn are prestressed against a rivet 6 or 6a, 6b. Instead of - as can be seen from FIG. 5 - only a pair of tumbler pins 4a, 4b with counter pins 5a and 5b arranged transversely to the axis of rotation of the cylinder core 2, a plurality of such pairs of tumbler pins 4a, 4b and associated counter pins 5a can also be provided in the longitudinal direction of the axis of rotation of the cylinder core 2 , 5b.

In the embodiment shown in FIG. 6, too, the same reference numerals have been used for parts with the same function as in the previously described embodiments. This embodiment differs from the previously described embodiments in that the tumbler pin has an eccentric locking lug 14, the longitudinal axis 15 of which is arranged at a distance Y from the center of the axis of rotation of the cylinder core 2.

The reference numeral 13 denotes an anti-rotation device for the tumbler pin 4 in question, which are designed as webs formed in one piece with the tumbler pin 4. The webs 13 engage in core grooves 16 which run parallel to the longitudinal axis 11 and which affect the longitudinal axis 15 of the locking lug 14 in relation to the flat key 8 and thus to the depression 17. This depression is designed like the locking lug 14. The locking lug 14 has no pointed end. Rather, the end face is delimited by a surface 18 running orthogonally to the longitudinal axis 15, to which z. B. a conical surface 19 connects so that the depression overall has the shape of a blunt cone. In contrast, the depressions 20 and 21 in the embodiment according to FIG. 5 are tapered in the deepest, so that the depression 20 and 21 by a pointed cone with z. B. 90 degree cone angle is limited. The locking lug 22 in FIG. 5 is also formed at an acute angle. The corresponding tumbler pin 4b thus engages in the depression 21 with its pointed locking lug 22. The tumbler pin 4a is also delimited on its end section facing the flat key 8 by a surface 23 which can engage in the recess 20 in a form-fitting manner.

Again, the same reference numerals have been used in the embodiment according to FIG. 7 as in the embodiment according to FIG. 6. The embodiment according to FIG. 7 differs from the embodiment according to FIG. 6 in that in the tumbler pin 4a a tumbler pin 4b with a smaller diameter is arranged with its longitudinal axis parallel to the longitudinal axis of the main tumbler pin 4a. This tumbler pin 4a, which is smaller in diameter, is assigned a counter pin 4b, which is also smaller than the main counter pin. The main counter pin points to this 4a a blind bore 24, in which a tumbler spring 7b is arranged under prestress, which is supported on the bottom of the smaller counter pin 5b. The longitudinal axis 25 of the tumbler pin 4b, which is smaller in diameter, is arranged at a distance Z from the longitudinal axis 11. Z can be as large as Y, so that the tumbler pins 4a and 4b are arranged symmetrically with respect to the longitudinal axis 11. However, it is also possible to make Z smaller than Y in order to achieve more locking variants. The locking lug 14 of the tumbler pin 4a is designed like the locking lug 14 in the embodiment according to FIG. 6, while the locking lug of the tumbler pin 4b with a smaller diameter is designed like the tumbler pin 4a in the embodiment according to FIG. 5, which is why the upper end face was provided with the reference numeral 23. The depression 20 also corresponds in shape to the depression 20 of the embodiment according to FIG. 5, so that the reference number 20 was also entered in FIG. 7 at this point.

As can also be seen in FIG. 7, the part intended for receiving the smaller tumbler pin 4b ends with its end face 26 below the key channel 27 and remains at a certain distance when the Closing tip 14 dips into the associated depression 17 of the flat key 8.

The embodiment according to FIG. 8 initially differs from the embodiment according to FIG. 7 in that the flat key 8 is provided with a large depression 28, which is delimited at its deepest by a surface running parallel to the transverse axis 29 and orthogonal to the longitudinal axis 11 is directed and runs through the center of rotation of the core 2. The surface 18 is dimensioned larger than the surface 18 in FIG. 7. Furthermore, the tumbler pin 4b, which is smaller in diameter, engages in a correspondingly shaped depression of the flat key 8 with a truncated cone.

In addition, the wall 31 of the tumbler pin 4a, which is smaller in diameter, also protrudes into the depression 28 and lies with an oblique chamfer 32 on the conical lateral surface of the depression 28 which runs at the same angle.

For the other functionally corresponding parts, the same reference numerals have been used as in the embodiment according to FIG. 7, so that reference can be made to the explanations there.

In the embodiment according to FIG. 9, the same reference numerals have been used for parts of the same function as in the embodiment according to FIG. 8. The embodiment according to FIG. 9 differs from the embodiment according to FIG. 8 essentially in that the wall 31 ends in front of the key channel 27 and the locking lug 30 on the side facing the wall 31 rests practically over the entire area on the depression in the flat key 8. In contrast, the locking lug 14 of the tumbler pin 4a engages in the depression 18 of the flat key 8 to a smaller length than in the embodiment according to FIG. 8.

In the embodiment according to FIG. 10, the same reference numerals have been used for parts with the same function as in the previously described embodiments.

The embodiment according to FIG. 10 differs from the previously described embodiments first in that in a hollow, tubular main tumbler pin 4a, a tumbler pin 4b with a smaller diameter is arranged to be longitudinally displaceable by a limited amount. Falling out of this tumbler pin 4b is limited by a ring stop shoulder 33. The tumbler spring 7b is pretensioned against an annular end wall in the likewise tubular counter pin 5a against the tumbler pin 5b, which is smaller in diameter. The tumbler pin 4b is flat on its end face which dips into the flat key 1. This end face 34 runs orthogonally to the longitudinal axis 11.

35 is a depression tip into which the inner tumbler pin 4b cannot enter in the illustrated embodiment. With the inner tumbler pin 4b, however, a corresponding molding can be connected in one piece, which is able to enter this countersink tip 35.

The remaining depression 36 runs in the manner of a truncated cone. The outer tubular tumbler pin 4a engages here with its end 37. At this end the tumbler pin 4a is also chamfered in a conical shape at 38 and delimited on its upper end face at 39 by an annular end face, the plane of which likewise runs orthogonally to the center line 11.

In the embodiment according to FIG. 11, too, the same reference numerals have been used for parts of the same function as in the previously described embodiments. This embodiment differs from those described above in that the tumbler pin 4 and the counter pin 5 are tubular. Inner bores 54 and 55 are of equal size in diameter and are arranged coaxially to one another. These holes 54 and 55 have the longitudinal axis 11 as a center line. In this case, the flat key 8 has a depression 36 of a frustoconical basic shape, in which the tumbler pin 4 engages with a shape-adapted end section. The air can escape through the holes 54, 55 when trying to break open with compressed air.

In the embodiment according to FIG. 12, the same reference numerals have been used for parts with the same function. This embodiment differs from the previously described embodiments in that the tumbler pin 4a and the counter pin 5a are also tubular, as in the embodiment according to FIG. 11, with the difference that the bores 54 have an annular shoulder 56 to limit the displacement path of a coaxial is arranged in the tubular tumbler pin 4b, the tumbler pin 4a is of reduced diameter and also has an annular shoulder 40 which is able to interact with the stop shoulder 56.

The bore 55, on the other hand, is continuously formed with the same diameter. In this bore 55 there is also an inner counter pin 5b of rod-like shape which is supported against a tumbler spring 7a, while the tubular counter pin 5a is supported against a tumbler spring 7b. For this purpose, the tubular counter pin 5a has a fillet in which the tumbler spring 7b lies. The rivet 6 also has a corresponding fillet, as a result of which the tumbler spring 7b is centered.

The rod-shaped counter pin 5b, on the other hand, is supported against the tumbler spring 7a, which is pretensioned in the deepest part of the rivet 6 and is supported against the end face of the rod-shaped counter pin 5b, which is orthogonal to the longitudinal axis 11.

At its end section, the tubular tumbler pin 4b is provided with a plurality of slots 41, 42 43 and 44 which run parallel to the longitudinal axis 11 and penetrate the wall of the tubular tumbler pin 4b. As a result, the wall is weakened at this point, so that in the event of any manipulation, the webs 45, 46, 47 and 48 formed thereby are deformed, after which it is impossible to close the locking cylinder.

The webs 45 to 48 are provided with a chamfer on their outer end face, which is formed by a common lateral surface - at 49. The webs 45 to 48 are hereby immersed in a corresponding depression 50 of the key 8, while the tumbler pin 4, with a locking lug 51 cut off at the top, dips into a depression 52 which opens into the depression 50 of the flat key 8.

In addition, the webs 45 to 48 are provided with a circumferential, ie 360-degree, backward rotation 53 which runs orthogonally to the longitudinal axis 11 and ends at a certain distance from the outer lateral surface of the webs 45 to 48. This further weakens these webs 45 to 48.

In all embodiments, tumbler pins 4 are prevented from falling into key channel 27 by stop shoulders.

Furthermore, it is pointed out that in all embodiments, the construction as in the embodiment according to FIG. 5 is possible with tumbler and counter pins arranged at least in pairs. In addition, several such pairs of pins can be arranged next to one another at a distance in the direction of the axis of rotation of the cylinder core 2.

Furthermore, it is possible to use different embodiments mixed on one and the same locking cylinder. As a result, not only the "unlock security" but also the Locking security and scanning security improved to a considerable degree and an enormous number of permutations achieved.

15 to 17 drilling patterns for the key are shown with different locking tips. 20 and 21 show the application of the inventive concept with a locking cylinder according to FIG. 2, while FIGS. 22 to 26 illustrate a locking cylinder for a master locking system. A normal key is illustrated in FIG. 24 and a master key is illustrated in FIG. 26, while FIG. 25 shows, for example, the offset possibilities of the eccentric locking lug (FIG. 22). The design of this locking cylinder corresponds to the embodiment according to FIG. 6.

27 to 30 show a locking cylinder, in which the most diverse types of locking cylinder shown in the drawing figures are combined. One knows paired tumbler pins of the most varied embodiments, e.g. B. according to the drawings according to FIGS. 2, 3, 5, 6 and 11. Of course, other mixed forms can be used in one and the same locking cylinder. This will make the "Unlocking security", the "locking security" and the "scanning security" are greatly increased.

Reference list

1

Cylinder body

2nd

Cylinder core

3rd

Carrier

4th

Tumbler pin

4a

"

4b

"

5

Counter pin

5a

"

5b

"

6

rivet

6a

"

6b

"

7

Tumbler spring

7a

"

7b

"

8th

Flat key

9

Face

10th

Counter surface

11

Longitudinal axis

12th

Area of the cylinder core

13

Anti-rotation device

14

Closing nose

15

Longitudinal axis

16

Kernnut

17th

Sinking

18th

surface

19th

Conical surface

20th

Sinking

21

"

22

Closing nose

23

surface

24th

Blind hole

25th

Longitudinal axis

26

Face

27

Key channel

28

Sinking

29

Transverse axis

30th

Closing nose

31

wall

32

Chamfer

33

Ring stop shoulder

34

Face

35

Sinking tip

36

Sinking

37

End, front

38

Conical surface

39

Face

40

Ring shoulder

41

slot

42

"

43

"

44

"

45

web

46

"

47

"

48

"

49

Lateral surface

50

Sinking

51

Closing tip

52

Sinking

53

Rear rotation

54

drilling

55

"

56

Ring shoulder

X

Tolerance measure

Y

distance

Z.

"

Claims (1)

1. Method of setting lock combinations in cylinder locks, which are fitted with a cylinder case (1), in which is arranged a cylinder core (2) of circular cross-section with longitudinal profile in the key channel (27) for a flat key (8) with variable recesses at least on one wide face of the flat key (8) or the like, and with pin tumblers (4, 5) extending at right angles to the core longitudinal axis, which in each case are arranged in a row or in rows, and which comprise at least one core pin (4), opposite to which lie corresponding recesses in the flat key (8), where each core pin (4) is assigned a counter-pin (5), which is slidable against spring pressure, which in each case is slidable against spring pressure in a hole arranged in the cylinder case (1), where the core pins (4) and the counter-pins (5), in opening position, are arranged with in each case opposite surfaces on the locking plane of the lock, where the core pin and counter-pin (4, 5) are formed on the facing end surfaces (9, 10) in opening position of the cylinder lock, with surfaces (9, 10) lying flat on one another, perpendicular to a longitudinal centre axis (11) of the core pin (4) and of the counter-pin (5) which passes through the longitudinal axis of rotation, or that the core pin and counter pin (4, 5) are formed on the facing surfaces (9, 10) with, in opening position of the cylinder lock, convex-concave surfaces lying on one another to provide a form fit, and that the cylinder core (2) in the area of its hole accommodating the core pin (4) on its circumferential surface is provided with a straight surface (12) corresponding at least to the diameter of the core pin (4) running parallel to its longitudinal axis of rotation, characterized by the fact that the at least one core pin (4) is provided with at least one eccentric locking lug (14), which is set in each case to one of the variously possible positions for setting of the required lock permutation in peripheral direction of the core pin (4) and is secured in the position set to prevent rotation.

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