EP1333135A1 - Lock cylinder - Google Patents

Abstract

At least two core pins (12, 13) and their corresponding casing pins (19, 20) are offset at an angle of 180 deg. relative to each other, have parallel length axes (25) and can be rotated in opposite directions into the open position using a flat key. The length axis of at least one of the core pins and the keyway central axis (7) intersect at an acute angle at a point not on the core length axis. The keyway end regions of the core pins are covered by keyway wall sections (38-41) integrally formed from the core (3) and/or the bore (2) for receiving the core pins is at least partially covered at one end, in order to make manipulation of the core pins more difficult. The cylinder has at least two pairs of pins each comprising a casing pin which is spring-loaded in the direction of the core by a compression spring (21) and a coaxial core spring. The pins are moved into an open position by inserting a flat key between the outer mantle surface (14) of the core and the bore (2) inside the cylinder casing (1) for receiving the core. At least two core pins extend at an acute angle relative to the key central axis (6).

Description

The invention relates to a locking cylinder with a tumbler, with a cylinder housing, the one circular cylindrical, running in the longitudinal axis direction Has bore in which one in a orthogonal to its longitudinal axis Cross section of a cylindrical cylindrical core with a key channel a flat key is rotatably arranged, with at least two pairs of Tumbler pins, each made by a compression spring towards the core loaded housing pin and each arranged coaxially thereto Core pin exist, the pairs of core and body pins from the flat key in the unlocked position on one between the outer surface of the core and the bore of the cylinder housing receiving the core provided interface in unlocked position (open position) are controllable, the flat key variable key recesses to control the housing pin and core pin has spring-loaded tumblers and at least two core pins under are arranged at an acute angle to the center line of the flat key.

Lock cylinders of the aforementioned type are known from DE 37 36 129 C2 and of EP 0 313 864 B1 with the same content. Both in these publications as well as other locking systems with multiple tumbler series are these arranged horizontally to the core longitudinal axis, that is to the core center, or are parallel at right angles to it and also cut the core longitudinal axis.

Lock cylinders of this type are also known from the following publications:

Brochure sheet from WILKA closing technology GmbH "Technology at the highest level - The vertical reversible key system from WILKA ";" Security locks, Locking systems, electronic alarm systems - factors of security ", prospectus Dom Sicherheitstechnik GmbH & Co. KG; "KESO, ... for your safety the best solution ", brochure KESO AG precision lock factory;" The only one Locking system with Swiss patent protection until 1995 ", Kaba Star, brochure the general agency for the Federal Republic of Germany, Häfele.

In particular, locking cylinders according to DE 37 36 129 C2 and EP 0 313 864 B1 already have a high security standard.

The invention has for its object a locking cylinder of the prerequisites Type with the highest security against locking and extraordinary scanning security embody.

The object is solved by each of the independent claims 1 to 5 .

Due to the one-piece material parts of the wall with the core Key channel and / or the bore opening into it for receiving The core pin ends become at least partially the core pin ends at the end in a manner which complicates scanning in all of the aforementioned Solutions secured against scanning. These wall parts can accordingly the penetration curves of the holes for the core pins on the one hand in the key channel on the other hand be formed and accordingly the core pin ends wholly or partially enclose sleeve-like, so that after peeling scanning the flat key is impossible.

In each of those characterized by the independent claims Lock cylinder it is practically impossible to use the assigned flat key copied without authorization. Neither the so-called "impression technique" nor the "picking method" are applicable here to one with such Lock cylinder designed lock, for example on security containers, on gaming machines and to open vending machines without authorization. Was a palpation already very difficult with a cylinder lock according to DE 37 36 129 C2, see above this is a cylinder lock according to one of the independent Claims 1 to 5 practically impossible.

In the solution according to claim 1 , at least two core pins with associated housing pins which are loaded by compression springs against the core pins are offset by 180 ° and arranged with their longitudinal axes running parallel to one another. By means of a flat key, which can be designed either as a reversible key or as a longitudinal rib profile flat key, the core pins can be controlled in opposite directions against the springs of the housing pins in the open position. The longitudinal axis of at least one of the core pins, which runs coaxially to the longitudinal axis of the associated housing pin, intersects a center line which runs through the center of the key channel and through the core longitudinal axis, namely outside the core longitudinal axis at an acute angle. If necessary, both longitudinal axes of the core pins can intersect this center line outside the core longitudinal axis.

In the solution according to claim 2 , the longitudinal axis of at least one core pin intersects the longitudinal axis of the core, while the longitudinal axis of at least one other core intersects this center line eccentrically, that is, outside the longitudinal axis.

The solution according to independent claim 3 differs in that the two longitudinal axes of at least two core pins intersect said center line at a distance from the center of the key channel. The center of this key channel is thus eccentric to the longitudinal axis of the rotatable core.

In the independent claim 4 , the distances at which the longitudinal axes of the core pins intersect the line running through the longitudinal axis of the core and through the center of the key channel are the same.

In contrast, in the solution according to independent claim 5, at least one further core pin with a spring-loaded housing pin is arranged in the angular range to core pins arranged on different sides of the core. Of course, several such core pins with associated spring-loaded housing pins can also be additionally distributed over the circumference of the cylinder housing. This further increases the security of the lock considerably.

In the solution of claim 6 , which refers back to the preceding independent claims, a plurality of rows of core pins and associated housing pins are arranged next to and / or one behind the other in the longitudinal axis direction of the core, which further contributes to increasing the security against locking.

Claim 7 describes an embodiment in which core pins, each of which are specially designed in pairs, with associated housing pins are alternately arranged on different sides of the core and distributed over its circumference.

A preferred embodiment describes claim 8 , which at the same time refers back to one of the independent claims. It follows that the core is provided with a recess through which such core pins, whose longitudinal axis no longer intersects the core longitudinal axis in the center, are gradually controlled from the eccentric position during the opening movement by means of a suitable flat key into the parting plane between the core and the bore of the cylinder housing are, while this parting plane with lock cylinders belonging to the prior art only lie at the cylindrical transition from the inner bore of the lock housing for receiving the rotating core and its outer surface.

This recess or shape for the "eccentrically" arranged core pins is based, on the one hand, on a gentle closing process for the core pins, since the outside of this recess, which forms a second parting plane, merges smoothly into the outer cylindrical outer surface of the otherwise circular core. Although the invention is not limited to this, a small area or flat curve will be assumed which gradually rises to the outer circumference of the core and which smoothly merges into the outer surface of the core through a curved curve. For this, claim 9 describes a preferred solution.

In the embodiment according to claim 10 , the core pin rows are connected to associated housing pins by a continuous surface on this side of the core, which form the respective curved recess.

According to claim 11 , however, the individual recesses of different core pins with rows of housing pins can also be separated from one another by webs. These webs form sections of the outer surface of the rotating core on their outside.

Advantageously, the core pins are rounded or rounded at their end section facing the flat key. This enables a smooth, jerk-free closing process with little effort. The solution according to claim 13 also contributes to this.

According to claim 14 , the flat key is provided as a longitudinal rib profile flat key with undercuts and / or profiles. The profiles can preferably be provided on one of the narrow sides of the key, but also on both narrow sides and / or on the broad sides of the longitudinal rib profile flat key. This depends on the number of core pins arranged in the core and the design of the key channel.

Claim 15 describes a further particularly advantageous embodiment. The flat key is designed as a reversible key. The reversible key is preferably provided at least on its opposite broad sides with corresponding recesses, bores or recesses through which the core pins are to be controlled.

Claim 16 describes a further advantageous embodiment of the invention.

Claim 17 describes an advantageous embodiment of the invention.

A particularly advantageous embodiment is described in claim 18 .

Further inventive embodiments are described in claims 19 and 20 .

Fig. 1

einen Schließzylinder in einem orthogonal zur Längsachse des Zylindergehäuses und des darin rotierend angeordneten Kerns geführten Querschnitt mit im Schlüsselkanal eingeführten Flachschlüssel, und zwar in Offenstellung des Schließzylinders (Kernstifte sind durch den Flachschlüssel in Offenstellung gesteuert);

Fig. 2

den aus Fig. 1 ersichtlichen Schließzylinder in Sperrstellung, ohne Schlüssel;

Fig. 3

den aus Fig. 2 ersichtlichen Schließzylinder mit dem in Abzugsstellung befindlichen oder einem nicht passenden Schlüssel;

Fig. 4

einen orthogonal zu seiner Längsachse geführten Querschnitt durch einen Kern mit in Sperrstellung befindlichen Kernstiften;

Fig. 5

einen Querschnitt entsprechend Fig. 4, mit eingeführtem Schlüssel, wobei die Kernstifte in Offenstellung gesteuert sind;

Fig. 6

das Profil eines Flachschlüssels in einem zu seiner Längsachse geführten Querschnitt;

Fig. 7

einen Querschnitt durch den aus Fig. 1 bis 3 ersichtlichen Schließzylinder, wobei der Ablauf einer Schließung dargestellt ist;

Fig. 8

der weitere Ablauf einer Schließung entsprechend Fig. 7;

Fig. 9

abermals der weitere Ablauf einer Schließung entsprechend Fig. 7 und 8;

Fig. 10

der Ablauf einer Schließung, wobei der Flachschlüssel weiter in andere Drehrichtungen gedreht worden ist;

Fig. 11

das weitere Fortschreiten des Drehens des Kerns mittels eines Flachschlüssels entsprechend Fig. 10;

Fig. 12

einen Kern in der Stirnansicht mit eingeführtem Schlüssel, wobei letzterer im Querschnitt dargestellt ist;

Fig. 13

einen Kern in perspektivischer Darstellung, in größerem Maßstab;

Fig. 14

einen Kern im Querschnitt zur Veranschaulichung wechselseitiger Anordnungen von Kernstiften, in Sperrstellung;

Fig. 15

abermals einen Kern im Querschnitt entsprechend Fig. 14 mit in den Schlüsselkanal eingeführtem Flachschlüssel, in Offenstellung;

Fig. 16

eine Darstellung entsprechend Fig. 4 und 5, wobei die Kernstifte im Gegensatz zu den Darstellungen in Fig. 4 und 5 um 180° versetzt dargestellt sind, ohne Schlüssel im Schlüsselkanal, in Sperrstellung;

Fig. 17

einen Querschnitt durch einen Kern entsprechend Fig. 16, mit in den Schlüsselkanal eingeführtem Flachschlüssel, letzterer ebenfalls im Querschnitt, in Offenstellung;

Fig. 18

einen Kern in perspektivischer Darstellung mit wechselseitigen Positionen der zweiten Schnittstelle;

Fig. 19

den aus Fig. 18 ersichtlichen Kern, von der anderen Seite dargestellt, ebenfalls in perspektivischer Darstellung;

Fig. 20

einen Längsachsschnitt durch einen Schließzylinder mit in den Schlüsselkanal eingeführtem Flachschlüssel, letzterer abgebrochen dargestellt;

Fig. 21

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

Fig. 22

das aus Fig. 20 ersichtliche Schloß und

Fig. 23

einen Schnitt nach der Linie B - B der Fig. 22.

In the drawing, the invention is illustrated - partly schematically - for example. Show it:

Fig. 1

a lock cylinder in a cross section guided orthogonally to the longitudinal axis of the cylinder housing and of the core rotating therein with the flat key inserted in the key channel, namely in the open position of the lock cylinder (core pins are controlled by the flat key in the open position);

Fig. 2

the lock cylinder shown in Figure 1 in the locked position, without key.

Fig. 3

the lock cylinder shown in Figure 2 with the key in the trigger position or a non-matching key.

Fig. 4

an orthogonal to its longitudinal axis cross section through a core with core pins in the locked position;

Fig. 5

a cross section corresponding to Figure 4, with inserted key, the core pins are controlled in the open position.

Fig. 6

the profile of a flat key in a cross section led to its longitudinal axis;

Fig. 7

a cross-section through the lock cylinder shown in Figures 1 to 3, wherein the sequence of a closure is shown.

Fig. 8

the further course of a closure corresponding to FIG. 7;

Fig. 9

again the further sequence of a closure according to FIGS. 7 and 8;

Fig. 10

the course of a lock, the flat key has been turned further in other directions;

Fig. 11

the further progress of the rotation of the core by means of a flat key according to FIG. 10;

Fig. 12

a core in the front view with the key inserted, the latter being shown in cross section;

Fig. 13

a core in perspective, on a larger scale;

Fig. 14

a core in cross section to illustrate mutual arrangements of core pins, in the locked position;

Fig. 15

again a core in cross-section corresponding to FIG. 14 with a flat key inserted into the key channel, in the open position;

Fig. 16

a representation corresponding to Figures 4 and 5, wherein the core pins are shown in contrast to the representations in Figures 4 and 5 offset by 180 °, without key in the key channel, in the locked position.

Fig. 17

a cross section through a core corresponding to Figure 16, with inserted in the key channel flat key, the latter also in cross section, in the open position.

Fig. 18

a core in perspective with mutual positions of the second interface;

Fig. 19

the core shown in Figure 18, shown from the other side, also in perspective.

Fig. 20

a longitudinal axial section through a lock cylinder with flat key inserted into the key channel, the latter shown broken off;

Fig. 21

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

Fig. 22

the lock shown in Fig. 20 and

Fig. 23

a section along the line B - B of Fig. 22nd

In the drawing, reference numeral 1 denotes a cylinder housing, which has a circular cylindrical bore 2 running in the longitudinal axis direction, in which a cross-section guided orthogonally to its longitudinal axis circular core 3 is arranged with a key channel 4. In the Key channel 4, a flat key 5 can be inserted, the corresponding the cross-sectional shape of the key channel 4 is designed. The flat key 5 can be used as a so-called longitudinal rib profile flat key or as Reversible key be formed and corresponding incisions and / or Have blind holes. These incisions or the like of the flat key 5 can be seen particularly clearly from FIG. 6. There is the center line of the flat key 5 with the reference numeral 6, while the Center line of the key channel 4 has the reference numeral 7. When plugged in Flat key 5, the center lines 6 of the flat key 5 are coaxial arranged to the center line 7 of the key channel 4, so coincide. The Center line 7 of the key channel 4 runs through the center of rotation of the Kerns 3 and thus through the core longitudinal axis 8, this intersects orthogonally. A also runs to the center line 7 of the key channel 4 Core longitudinal axis 8 orthogonally intersecting transverse axis 9, which is the transverse axis the bore 2, but also forms the transverse axis of the core 3 and orthogonal to Longitudinal core axis 8 and orthogonal to the center line 7 of the key channel 4 runs. This results in quadrants I, II, III and IV in every cross-sectional plane of core 3.

The transverse center line running orthogonal to the center line 6 of the flat key 5 is designated by the reference number 10 (FIG. 6). This cross center line 10 falls with a transverse center line when the flat key 5 is inserted into the key channel 4 11 together, which are orthogonal to the center line 7 of the key channel 4 runs. The transverse center line 11 is designated with the center line of the key channel 4 the center of the key channel 4 through which the longitudinal center axis of the key channel 4, which is directed parallel to the core longitudinal axis 8 is. As you can see, this is the center of the key channel 4 arranged at a distance A from the center of the core 3 (Fig. 4 and 5).

Due to the flat key 5, the core 3 is either in the direction X or in To turn direction Y in the bore 2 of the cylinder housing 1 (Fig. 7 to 11).

In the embodiment according to FIGS. 1 to 5 and 7 to 11 and 14 to 17, 21st and 23 are designated by the reference numerals 12 and 13, respectively, core pins, which consist of different lengths integrally connected with each other Diameter exist. Each of the core pins 12 and 13 has one enlarged in diameter on its the outer surface 14 of the core facing end arranged head part 15 or 16, the spherical or mushroom-shaped is rounded or curved. The one in diameter Smaller, rod-shaped section of each core pin 12 or 13 is longitudinally displaceable in a reduced bore section run with little play. Its stroke is limited by the stop of the formed by the enlarged head portion 15 and 16 annular surface at the transition to the smaller diameter part of the core pin 12, 13 in question against the annular stop provided here in the Bore for core pin 12, 13 in core 3 itself.

In the position of the core 3 shown in FIGS. 1 to 3 in relation to the Cylinder housing 1 are the core pins 12 and 13 coaxially opposite Bores 17 and 18 are arranged, in each of which a housing pin 19 or 20 against the restoring force of a compression spring 21 or 22 with play is arranged to be longitudinally displaceable. Each of the compression springs 21, 22 is supported the opposite side of the relevant housing pin 19 or 20 a fixed abutment, for example against a rivet 23 or 24.

The longitudinal axes 25 and 26 of the core pins 12, 13 run at a distance as well parallel to each other, such that the longitudinal axis 25 of the core pin 12 the Core longitudinal axis 8 and thus also the center of rotation of the core 3 in the cross-sectional plane concerned, while the longitudinal axis 26 Center line 7 of the key channel 4 below the transverse axis 9 under one acute angle α intersects. In the illustrated embodiments, the Arrangement has been made so that the orthogonal from the transverse axis 9 in Direction of the center line 7 of the key channel 4 measured distances C and T are the same. This means that the longitudinal axis 26 of the core pin 13th the center line 7 of the key channel 4 is eccentric with respect to the center of the key channel 4 intersects and thus also eccentrically with respect to the Longitudinal axis 8 of the core 3 is arranged.

So with a suitable flat key 5 all core pins 12, 13 in one Parting plane can be brought, the 14 between the outer surface the core 3 on the one hand and the bore 2 of the cylinder housing 1 on the other lies, so that the core 3 through the flat key 5 about its longitudinal axis 8 can rotate, it is necessary because of the eccentricity of the core pins 13 here introduce a second cutting plane or second parting surface. This second Cutting plane or parting surface between bore 2 of the cylinder housing 1 and the outer surface 14 of the rotatable core 3 is thereby made that in the region of the core 3, the outer surface 14 with a suitable shape, recess or recess 27 is provided, the is delimited by a wall section in the form of a curve 28. Now becomes a suitable flat key inserted in the key channel 4, then the tumblers consisting of core pins and housing pins against the Spring return force controlled in open position. Then there is a turning of the core 3, the heads of the case pins gradually slide from that Wall section 27, controlled by curve 28, into the outer lateral surface 14 of the core 3, so that then the core 3 in the bore 2 of the cylinder housing 1 can also be rotated. 7 to 11 can clearly be seen how when rotating the core 3 by means of a suitable flat key 5 Core pins 12 and 13 on the one hand and the housing pins 19 and 20 on the other hand to be controlled. In the direction of the longitudinal axis 8, this recess or Shape 27 of course dimensioned so that it is at least slightly larger than the diameter of the relevant head part 16 of the associated core pin 13 on the one hand and the diameter of the housing pin 20 located here on the other hand. In addition, curve 28 goes smoothly into the outer surface 14 over to enable a smooth closing process. Out Fig. 7 shows the start of a closing movement. The flat key 5 is inserted in the key channel 4 and the core 3 is around its Longitudinal axis 8 rotated in the direction of arrow X. It can be seen how the housing pin 20 with its end face slides along curve 28 until, according to FIG The lateral surface 14 of the core 3 occurs and slides further along here. From Fig. 9 is to recognize how the housing pin 20 with its head part 16 on the outer surface 14 of the core 3 slides along.

Fig. 10 shows the opposite direction of rotation of the core in the direction Y and sliding along the housing pin 20 on the curve 28 until the housing pin 20 in turn occurs on the outer surface 14 of the core 3 and on this slides along, which can be seen from FIG. 11. Through the recess 27 and curve 28 thus become a second interface or so to speak Partition plane between the bore 2 of the cylinder housing 1 and the outer surface 14 of the core 3 formed so that the lock cylinder despite the eccentricity of the core pin 13 locked and unlocked with respect to the core longitudinal axis 8 can be.

At least one further core pin 29 can be located between the core pins 12 and 13 be provided, which can be designed and arranged as the Core pins 12 and 13. This core pin 29 is also a housing pin 30 Compression spring 31 assigned, which turned away from the housing pin 30 Prestressed side supported against a rivet 32. The other compression springs too the housing pins are arranged preloaded. The core pin 29 and the housing pin 30 can also be omitted if necessary.

In the direction of the longitudinal axis 8 are shown in FIGS. 1 to 15 Embodiment several rows of core pins 12 and 13 spaced apart as well arranged parallel to each other one behind the other, which in particular is clear from Fig. 13. There you can see that a total of five such Rows of core pins 12 and 13 are arranged one behind the other, the Recesses 27 of all rows of core pins as a continuous Recess is designed. Curve 28 also extends in the longitudinal axis direction over all rows of core pins 12 and 13. All these rows of Core pins are designed and arranged as described above has been.

Of course, the number of one behind the other in the longitudinal axis direction arranged rows of core pins can also be larger or smaller than this 13 can be seen. The angles can also be designed differently than this can be seen from the drawing. Otherwise, the holes in FIG. 13 for the housing pins 30 with the reference number 33 for one of the bores characterized. The housing pins themselves, the compression springs and the rivets are not shown in this figure.

The reference symbol 34 (FIGS. 13, 18, 20) denotes a so-called stop curve, into which a cam pin 35 (FIG. 20) engages to secure the trigger a bore of the cylinder housing 1 arranged and for example by a Rivet, screw or the like, is locked and also for closing limitation, for example by 90 ° direction of rotation of the core 3, is used.

In the embodiment according to FIGS. 16 and 17, parts have the same function the same reference numerals have been used as in the previously described Embodiments. In the sectional plane shown in FIGS. 16 and 17 is the core pin pair 12 and 13 again with its longitudinal axes 25 and 26 arranged parallel to each other, such that the one core pin 12 in quadrant III and the core pin 13 essentially in the quadrant IV is arranged. The cylinder housing 1, not shown, is designed in this way as in the above-described embodiment, which also for the Housing pins, not shown, apply corresponding to the core pins 12 and 13 are arranged. 16 shows the representation without a suitable flat key, 17 a flat key 5 in the key channel 4 is arranged and the core pins 12 and 13 are controlled accordingly to the outside Has. The recess 27 is here in quadrant I.

The core pins 12 and 13 according to FIGS. 16 and 17 can with the 1 to 15 core pins shown alternately arranged, such as this results from FIGS. 18 and 19. Of course it is possible that one or another type of arrangement of core pins, so according to the Embodiment according to FIGS. 1 to 15 or according to the embodiment 16 and 17, only once or in rows one after the other, also around the longitudinal axis 8 from the cross-sectional plane to the cross-sectional plane rotated against each other by the same or different angular amount, to arrange.

As can be seen from FIGS. 18 and 19, the recesses 27 are in this Embodiment separated by webs 36 and 37 from each other. The webs 36 and 37 can also be omitted, so that there is a continuous on each side Recess 27 results, similar to that in FIG. 13.

With the reference numerals 38 and 39 or 40 and 41 are with the core 3rd referred to in terms of material one-piece wall areas or wall parts, after removing the relevant flat key (for example Fig. 1) the relevant conical or crowned end regions of the Cover core pins 12 and 13 against palpation.

If the flat key 5, for example according to FIG. 2, is in the key channel 4 inserted, so the associated end portions of the core pins 12 and 13th of recesses 42 and 43 provided on the flat key 5 into the open position against the restoring force of the associated compression springs 21, 22 controlled.

In cases where more than two core pins 12, 13 or more than one Row of core pin pairs side by side and / or one behind the other - in Seen longitudinal axis direction of the core 3 - are provided corresponding wall parts as described above with the core 3 in one piece arranged, the flat key 5 with the recesses 42 and 43 corresponding recesses is provided to the associated Control core pins 12, 13.

The in the summary, in the claims and in the description described features and can be seen from the drawing both individually and in any combination for the realization of the Invention to be essential.

LIST OF REFERENCE NUMBERS

1

cylinder housing

2

drilling

3

core

4

keyway

5

Flat key, reversible key, longitudinal rib profile flat key

6

Center line of the flat key 5

7

Center line of key channel 4

8th

core longitudinal axis

9

transverse axis

10

Transverse center line of the flat key 5 and the key channel 4

11

"" "" ""

12

core pin

13

"

14

Outer surface of the core 3, cylindrical surface

15

Head part of a core pin

16

"" "

17

Hole for a housing pin

18

"" ""

19

housing pin

20

"

21

compression spring

22

"

23

rivet

24

"

25

longitudinal axis

26

"

27

Recess, shape, deepening

28

Curve, wall section

29

core pin

30

housing pin

31

compression spring

32

rivet

33

drilling

34

velocity curve

35

cam pin

36

web

37

"

38

Wall part or wall area of the core 3

39

"" "" "

40

"" "" "

41

"" "" "

42

Cutout in flat key 5

43

"" "

I

quadrant

II

"

III

"

IV

"

A

Distance of the core longitudinal axis 8 and the transverse axis 9 from the center of the Key channel 4

X

arrow

Y

direction of rotation

C

distances

T

"

α

angle

Claims (20)

Lock cylinder with pin tumbler, with a cylinder housing (1), which has a circular cylindrical bore (2) running in the longitudinal axis direction, in which a circular cylindrical core (3) with a key channel (4) through a flat key (4) in a cross section orthogonal to its longitudinal axis. 5) is rotatably arranged, with at least two pairs of tumbler pins, each consisting of a housing pin (19, 20) loaded by a compression spring (21) in the direction of the core (3) and a core pin (12, 13 ) exist, the pairs of core and housing pins (12, 19 and 13, 20) from the flat key (5) in the unlocked position to one between the outer surface (14) of the core (3) and the core (3) receiving Bore (2) of the cylinder housing (1) provided interface in the unlocked position (open position) can be controlled, the flat key (5) variable key recesses for controlling the has spring-loaded tumblers consisting of housing pin (19, 20) and core pin (12, 13) and at least two core pins (12, 13) are arranged at an acute angle to the center line (6) of the flat key (5), characterized in that at least two Core pins (12, 13) with their associated housing pins (19, 20) offset by 180 ° and with their longitudinal axes (25, 26) parallel to each other and can be controlled in opposite directions by the flat key (5) and the longitudinal axis (26) at least one of the core pins (13) cut through the center line (7) running through the center of the key channel (4) and through the core longitudinal axis (8) outside the core longitudinal axis (8) at an acute angle (α), the key channel (4) facing the key channel (4) End regions of the core pins (12, 13) by means of wall parts (38, 39 or 40, 41) of the key channel (4) which are integral with the core (3) and / or the bore (2) opening into the latter Receiving the relevant core pin (12 or 13) are at least partially covered at the end in a manner that complicates scanning. Lock cylinder with pin tumbler, with a cylinder housing (1), which has a circular cylindrical bore (2) running in the longitudinal axis direction, in which a circular cylindrical core (3) with a key channel (4) through a flat key (4) in a cross section orthogonal to its longitudinal axis. 5) is rotatably arranged, with at least two pairs of tumbler pins, each consisting of a housing pin (19, 20) loaded by a compression spring (21) in the direction of the core (3) and a core pin (12, 13 ) exist, the pairs of core and housing pins (12, 19 and 13, 20) from the flat key (5) in the unlocked position to one between the outer surface (14) of the core (3) and the core (3) receiving Bore (2) of the cylinder housing (1) provided interface in the unlocked position (open position) can be controlled, the flat key (5) variable key recesses for controlling the comprises spring-loaded tumblers consisting of housing pin (19, 20) and core pin (12, 13) and at least two core pins (12, 13) are arranged at an acute angle to the center line (6) of the flat key (5), characterized in that at least two Core pins (12, 13) with their associated housing pins (19, 20) offset by 180 ° and with their longitudinal axes (25, 26) parallel to each other and can be controlled in opposite directions by the flat key (5) and the longitudinal axis (26) at least one of the core pins (12) the longitudinal axis (8) of the core (3) and the center line (7) running orthogonally through the longitudinal axis (8) of this core (3) and through the center of the key channel (4) at an acute angle (α ) cut while the longitudinal axis of at least one other core pin (13) intersects this center line (7) outside the core longitudinal axis (8) at an acute angle (α), the endbers facing the key channel (4) Oak of the core pins (12, 13) by means of wall parts (38, 39 or 40, 41) of the key channel (4) which are integral with the core (3) and / or the bore (2) opening into this for receiving the relevant core pin ( 12 or 13) are at least partially covered at the end in a manner which complicates scanning. Lock cylinder with pin tumbler, with a cylinder housing (1), which has a circular cylindrical bore (2) running in the longitudinal axis direction, in which a circular cylindrical core (3) with a key channel (4) through a flat key (4) in a cross section orthogonal to its longitudinal axis. 5) is rotatably arranged, with at least two pairs of tumbler pins, each consisting of a housing pin (19, 20) loaded by a compression spring (21) in the direction of the core (3) and a core pin (12, 13 ) exist, the pairs of core and housing pins (12, 19 and 13, 20) from the flat key (5) in the unlocked position to one between the outer surface (14) of the core (3) and the core (3) receiving Bore (2) of the cylinder housing (1) provided interface in the unlocked position (open position) can be controlled, the flat key (5) variable key recesses for controlling the comprises spring-loaded tumblers consisting of housing pin (19, 20) and core pin (12, 13) and at least two core pins (12, 13) are arranged at an acute angle to the center line (6) of the flat key (5), characterized in that at least two Core pins (12, 13) with their associated housing pins (19, 20) offset by 180 ° and with their longitudinal axes (25, 26) parallel to each other and can be controlled in opposite directions by the flat key (5) and the longitudinal axis (25) one the core pins (12) intersect a center line (7) running through the longitudinal axis (8) of the core (3) and through the center of the key channel (4) at an acute angle (α), the two longitudinal axes (25, 26) of the Core pins (12, 13) cut this center line (7) at a distance from the center of the key channel (4) at an acute angle (α), the end areas of the core pins (12, 13) facing the key channel (4) being connected with the Core (3) materially one-piece wall parts (38, 39 or 40, 41) of the key channel (4) and / or the bore (2) opening into this for receiving the relevant core pin (12 or 13) at least partially in one end Scanning aggravating ways are covered. Lock cylinder with pin tumbler, with a cylinder housing (1), which has a circular cylindrical bore (2) running in the longitudinal axis direction, in which a circular cylindrical core (3) with a key channel (4) through a flat key (4) in a cross section orthogonal to its longitudinal axis. 5) is rotatably arranged, with at least two pairs of tumbler pins, each consisting of a housing pin (19, 20) loaded by a compression spring (21) in the direction of the core (3) and a core pin (12, 13 ) exist, the pairs of core and housing pins (12, 19 and 13, 20) from the flat key (5) in the unlocked position to one between the outer surface (14) of the core (3) and the core (3) receiving Bore (2) of the cylinder housing (1) provided interface in the unlocked position (open position) can be controlled, the flat key (5) variable key recesses for controlling the comprises spring-loaded tumblers consisting of housing pin (19, 20) and core pin (12, 13) and at least two core pins (12, 13) are arranged at an acute angle to the center line (6) of the flat key (5), characterized in that at least two Core pins (12, 13) with their assigned housing pins (19, 20) offset by 180 ° and with their longitudinal axes (25, 26) running parallel to each other and can be controlled in opposite directions by the flat key (5) and the longitudinal axes (25, 26 ) of the two core pins (12, 13) cut a center line (7) through the longitudinal axis (8) of the core (3) and through the center of the key channel (4) at the same distance from the center of the key channel (4), the End regions of the core pins (12, 13) facing the key channel (4) by means of wall parts (38, 39 or 40, 41) of the key channel (4) which are integral with the core (3) and / or the bore (2) opening into it to r recording of the relevant core pin (12 or 13) are at least partially covered at the end in a manner which makes scanning difficult. Lock cylinder with pin tumbler, with a cylinder housing (1), which has a circular cylindrical bore (2) running in the longitudinal axis direction, in which a circular cylindrical core (3) with a key channel (4) through a flat key (4) in a cross section orthogonal to its longitudinal axis. 5) is rotatably arranged, with at least two pairs of tumbler pins, each consisting of a housing pin (19, 20) loaded by a compression spring (21) in the direction of the core (3) and a core pin (12, 13 ) exist, the pairs of core and housing pins (12, 19 and 13, 20) from the flat key (5) in the unlocked position to one between the outer surface (14) of the core (3) and the core (3) receiving Bore (2) of the cylinder housing (1) provided interface in the unlocked position (open position) can be controlled, the flat key (5) variable key recesses for controlling the comprises spring-loaded tumblers consisting of housing pin (19, 20) and core pin (12, 13) and at least two core pins (12, 13) are arranged at an acute angle to the center line (6) of the flat key (5), characterized in that at least two Core pins (12, 13) with their associated housing pins (19, 20) offset by 180 ° and with their longitudinal axes (25, 26) parallel to each other and can be controlled in opposite directions by the flat key (5) and the longitudinal axis (26) at least one of the core pins (13) which runs through the center of the key channel (4) and through the core longitudinal axis (8) center line (7) outside the core longitudinal axis (8) at an acute angle (α), while the longitudinal axis (25) intersects at least one another core pin (12) the longitudinal axis (8) of the core (3) outside the center of the key channel (4) and its center line (7) at an acute angle (α), and that at an angle d to these two core pins (12, 13) and housing pins (19, 20) at least one further core pin (29) with a spring-loaded housing pin (30) is arranged, the longitudinal axis of which coincides with a radius of the core (3), the key channel (4) facing end regions of the core pins (12, 13) by means of wall parts (38, 39 or 40, 41) of the key channel (4) which are integral with the core (3) and / or the bore (2) opening into this for receiving of the relevant core pin (12 or 13) are at least partially covered at the end in a manner which makes scanning difficult. Lock cylinder according to Claim 1 or one of the subsequent claims, characterized in that a plurality of rows of core pins (12, 13) and housing pins (19, 20) are arranged next to and / or one behind the other in the longitudinal axis direction of the core (3). Lock cylinder according to claim 1 or one of the subsequent claims, characterized in that housing pins (19, 20) with assigned core pins (12, 13) alternately at least in pairs in cross-sectional planes running orthogonally through the longitudinal axis (8) of the core (3) in the same or different ways Angles are offset from each other. Lock cylinder according to claim 1 or one of the subsequent claims, characterized in that the core (3) in the region of the longitudinal axis (26) of core pins (13) which are arranged eccentrically to the longitudinal axis (8) of the core (3) with a The second parting plane between the cylinder housing (1) and the core (3) forming recess (27) is provided, the wall section (28) gradually with respect to the circumference (14) of the core (3) in both directions of rotation (X - Y) in the outer surface (14) of the core (3) merges in such a way that when the core (3) is turned by means of a flat key (5), the housing pin (20) in question gradually, without jump, into the outer cylindrical outer surface (13) when the core (3) is rotated. 14) of the core (3) can be transferred. Lock cylinder according to claim 8, characterized in that all transitions of the wall section (28) of the recess (27) are rounded or curved. Lock cylinder according to claim 8 or 9, characterized in that all the recesses (27) of different core pins (13) on the same side of the core (3) are connected to one another by a continuous shape in the longitudinal axis direction. Lock cylinder according to claim 8 or 9, characterized in that all the recesses (27) of a plurality of core pins (13) on one side of the core (3) are separated from one another in the longitudinal axial direction thereof by webs (36, 37) formed integrally with the core (3) , Lock cylinder according to claim 1 or one of the subsequent claims, characterized in that the core pins (12, 13) are conical or spherical and rounded at their end section or head part (15, 16) facing the flat key (5). Lock cylinder according to claim 12, characterized in that the core pins (12, 13) are designed to be spherical or mushroom-shaped at their end sections facing the housing pins (19, 20). Lock cylinder according to claim 1 or one of the following claims, characterized in that the flat key (5) is provided as a longitudinal rib profile flat key with incisions and / or profiles and / or blind holes. Lock cylinder according to claim 1 or one of the subsequent claims, characterized in that the flat key (5) is designed as a reversible key, which is provided on both broad sides with the core pins (12, 13) cooperating profiles or recesses, notches or blind holes. Lock cylinder according to claim 1 or one of the subsequent claims, characterized in that the flat key (5) is provided on both sides with profiles or blind holes and that the end regions of the core pin (12, 13) facing the flat key (5) - in whole or in part - are covered by covers, protrusions, recesses, webs, rivets or the like provided in the core (3) and made of one piece with the cylinder core. Lock cylinder according to claim 1 or one of the subsequent claims, characterized in that the wall regions or wall parts (38, 39 or 40, 41) covering the core pin ends are arranged on opposite sides. Lock cylinder according to claim 1 or one of the subsequent claims, characterized in that the wall areas or wall parts (38, 39 or 40, 41) which cover the cover each extend over the center line (7) of the key channel (4). Lock cylinder according to claim 18, characterized in that the wall areas or wall parts (38, 39 or 40, 41) which cover the cover are of different lengths in the longitudinal axis direction of the associated core pin (12 or 13). Lock cylinder according to claim 1 or one of the subsequent claims, characterized in that the wall areas or wall parts (38, 39 or 40, 41) of the core (3) which cover the core pin ends (12, 13) enclose the ends in a sleeve shape and in overlap in the axial direction in the direction of the center line (7) of the key channel (4).

Images