EP2534321A1

EP2534321A1 - Locking device

Info

Publication number: EP2534321A1
Application number: EP11703432A
Authority: EP
Inventors: Matthias Habecke
Original assignee: Huf Huelsbeck and Fuerst GmbH and Co KG
Current assignee: Huf Huelsbeck and Fuerst GmbH and Co KG
Priority date: 2010-02-10
Filing date: 2011-02-04
Publication date: 2012-12-19
Anticipated expiration: 2031-02-04
Also published as: KR101726014B1; JP6009359B2; KR20120137353A; CN102753775A; US8966949B2; WO2011098405A1; CN104265074A; CN102753775B; US20130000368A1; JP2013519808A; DE102010001790A1; EP2534321B1

Abstract

The invention relates to a locking device of a motor vehicle, having a key (10) and a lock cylinder, wherein the lock cylinder comprises a cylinder core rotatably supported in a cylinder housing of the lock cylinder, a channel comprising the cylinder core and into which the key (10) can be inserted, spring-loaded tumbler elements displaceably supported radial to the cylinder axis of the lock cylinder when inserting the key (10) into the channel radial to the cylinder axis of the lock cylinder, the plurality of outer surfaces (11a, 11b, 12a, 12b) on the key (10) comprising at least two encoding strips (51a, 51b) acting on the tumbler elements when the key (10) is inserted.

Description

closing device

Description

The invention relates to a locking device of a motor vehicle with a key and a lock cylinder, wherein the lock cylinder has a cylinder core which is rotatably mounted in a cylinder housing of the lock cylinder, a channel having the cylinder core and in which the key is inserted and spring-loaded locking elements, the are slidably mounted during insertion of the key into the channel radially to the cylinder axis of the lock cylinder.

It has disadvantageously shown that in order to steal a motor vehicle, unauthorized persons strive by means of burglary tools, for. B. by a so-called "picking" to sort the tumblers in the keyway on the cross section of the cylinder core, whereby the tumblers release the cylinder core for rotation. It has been found that in some cases, smaller installation spaces are necessary for such closing devices, at the same time ensuring a high level of security against break-up of the closing device.

To solve this problem, a locking device with all the technical features of claim 1 is proposed. In the dependent claims possible embodiments are proposed.

According to the invention a closing device of a motor vehicle is provided, with a key and a lock cylinder, wherein the lock cylinder has a cylinder core, which is rotatably mounted in a cylinder housing of the lock cylinder, a channel, which has the cylinder core and in which the key is inserted, spring-loaded locking elements, which are slidably mounted during insertion of the key into the channel radially to the cylinder axis of the lock cylinder, a plurality provided on the key outer surfaces having at least two Codierbahnen that act on insertion of the key on the tumblers. One of the main advantages of this locking device according to the invention is that due to the at least two coding tracks, which are each provided on an outer surface of the key, whereby a compact lock cylinder can be created, at the same time a high number of locking combinations is ensured.

It can also be provided that the outer surfaces have two narrow sides, in particular a first and a second narrow side, and two broad sides, in particular a first and a second broad side. In this case, it is also conceivable that the key is a four-edged flat profile, which has in each case in pairs opposite one another on the one hand narrow sides and on the other broad sides. For example, a rectangular profile is conceivable. It may also be possible that the profile is square, so that consequently the narrow side and the broad side can be formed in terms of area equal in size.

In a conceivable embodiment of the invention, the key can be designed as a reversible key, so that the key can assume at least two positions, in where the key is effectively inserted into the channel. This means that the key has such a profiling in terms of its coding tracks, which allows the user to align the key differently and thus to insert in different positions effectively in the key channel. Advantageously, the key may have two different positions, which are 180 ° rotated from each other in order to insert the key effectively into the lock cylinder. It has been found that the number of lock combinations is reduced in a reversible key, while the comfort for the user is improved.

The coding tracks according to the invention are used here for coding, wherein the coding tracks are designed with such a profiling, which correspond correspondingly with the locking elements of the lock cylinder, that means that only the key with the corresponding "correct" code track or coding track a corresponding displacement of the locking elements causes the keyway to cause the inserted key a movement of the cylinder core within the cylinder housing.

In one possible embodiment, the key may have only two coding tracks, the first narrow side having a first coding track and the second narrow side having a second coding track. It is also conceivable that the first broadside is designed with a first coding track and the second broadside with a second coding track. Alternatively, it is conceivable that a first narrow side is designed with a first coding track and a broadside with a second coding track. In one conceivable embodiment of the invention, the coding tracks are embodied differently in their geometry relative to one another, that this is not a reversible key. As a result, a high number of locking combinations can be achieved. Thus, at the same time a reduced key cross-section can be achieved with a small opening to the keyway of the cylinder core. Due to the small insertion opening for the key has been shown advantageously that no high forces in the cylinder core can be deliberately introduced for manipulation purposes. Furthermore, an improved sealing effect of the lock cylinder is achieved due to the small channel opening for the key. In addition, it has been shown to be advantageous that a large number of locking elements is possible with the same overall length of the lock cylinder. For example, 8 to 20 tumblers can be used. The large number of tumblers allow, inter alia, a larger locking torque. Another advantage is that the resistance to unauthorized picking is increased.

With regard to the possible embodiment of a key with two coding tracks are always two outer surfaces codierbahnenfrei. This means that a broad side and a narrow side can be solid, without a coding track being arranged on these sides. Alternatively, both broadsides or both narrow sides can be embodied coding-free. Conveniently, the key is a solid component in which the Codierbahn is milled. By the measure of a codierbahnfreien narrow side, the key height can be further reduced. Due to the resulting possible reduction of the key channel of the lock cylinder is also safe to break, as with each reduction also a potential breaking tool must be smaller in order to be introduced into the keyway and also the maximum practicable force is reduced.

It is also conceivable that the outer surfaces of the key have three coding tracks. In this case, it is possible, for example, that both broad sides are each designed with a coding track and only one narrow side has a corresponding coding track. Alternatively, it may also be appropriate that both narrow sides are each formed with a Codierbahn, wherein a narrow side has only one Codierbahn. The opposite narrow side is executed at the same codierbahnfrei. Due to the three coding tracks at the same time the number of locking combinations of this locking device according to the invention can be substantially increased. At the same time, the key cross-section, the functional length of the key and the overall length of the lock cylinder can be reduced. In addition to the low production costs can thus be achieved at the same time increased security against any manipulation of the lock cylinder.

In a further possible measure of the invention, the outer surfaces of the key may have four coding tracks. In this embodiment, each outer surface of the key each has a coding path. Four coding tracks cause a further increase in the number of possible locking combinations, whereby the overall length of the lock cylinder, the key cross-section and the functional length of the key can be significantly reduced.

One possible embodiment of the invention is that the coding track can be designed as a groove and / or as a rib. In this case, the groove or the rib may in particular have a substantially constant web width. The groove is in this case designed as a recess on the outer surface of the key into which reach the associated locking elements in the introduction of the key. The rib, on the other hand, is designed as a protrusion on the outer surface of the key, into which the respective locking elements reach during the insertion of the key. The key with two coding tracks, three coding tracks or four coding tracks can be designed such that only coding tracks are used as a groove, coding tracks as a rib or coding tracks as a groove and rib.

Advantageously, the Codierbahn has at least one guide surface which acts on associated Zuhalteelemente, in particular that the first Codierbahn acts on first tumblers and the second Codierbahn on second tumbler, wherein in particular a displacement of the first tumblers in a first radial direction to the cylinder axis and a shift the second locking element takes place in a second radial direction, which is perpendicular to the first radial direction, to the cylinder axis.

In a further embodiment it can be provided that the first tumbler elements and the second tumbler elements are arranged in an alternating sequence in the cylinder core. As a result, an increased security against any manipulation from the outside is achieved, since the first tumbler must be moved by the manipulation tool in a first direction and the second tumblers in a second direction to unjustifiably sort the tumblers, whereby rotation of the cylinder core can be released ,

Another advantage of the invention may be that the first tumblers have a plurality of individual tumblers each spring-loaded in different directions. In addition, the second locking elements to a variety of Have individual retaining elements, which are also each spring-loaded in different directions. For example, acts on each Einzelzuhalteelement a spring. In this case, the first locking elements act with at least one coding track of one of the two broad sides. The second locking elements can interact with at least one coding track of one of the narrow sides. In order to further increase the security against burglary, it can now be provided that the direction of the spring load on the individual retaining elements of the first retaining elements can be aligned differently with one another. Thus, the manipulator must move the first Einzelzuhalteelement the first Zuhaltelemente example, in a defined direction by the manipulation tool, the following second Einzelzuhalteelement the first locking elements, for example, sorted in an opposite direction for manipulation and thus must be moved. The spring load acting in different directions can of course be applied to the second locking elements. Thus, increased resistance to the use of manipulation tools with a simultaneously small opening to the keyway can be achieved.

In one possible embodiment of the invention, at least one narrow side has a rib as the coding path and at least one broad side has a groove as the coding path.

In a measure improving the invention, provision may be made for the key to have at least one auxiliary coding path which is provided on the narrow side and / or on the broad side, which in particular excludes a turning function of the key. For example, the Hilfskodierbahn can have an extension on one of the outer surfaces of the key, which takes place without changing direction. This means that the auxiliary coding path, for example, runs parallel to the cylinder axis. The cross section of the auxiliary coding path can have different geometric shapes. For example, the Hilfskodierbahn be designed as a groove that can take their geometric shape round, square or oval. The sense of an auxiliary coding path on the key may, for example, also be that a key system is used which has a master key which is designed with such an auxiliary coding path. Another sub-key may have the identical coding tracks on the outer surfaces of the key, but is carried out without such Hilfskodierbahn, so that this Subkey only limited for the user effectively inserted into firmly favored lock cylinder.

Other features and advantages and technical features of the invention will become apparent from the claims, the following description and the drawings. In the figures below closing devices according to the invention are shown in detail in several embodiments. Show it:

Fig. 1 shows a key according to the invention a closing device, wherein the

Key has two coding tracks,

2 shows a further key with two coding tracks and a Hilfskodierbahn,

3a, b show a further embodiment of a key with two coding tracks,

4 shows a key according to the invention with three coding tracks,

5 shows another embodiment of a key with three coding tracks,

6 shows another key according to the invention with three coding tracks,

7 shows another key according to the invention with four coding tracks,

Fig. 8 shows an inventive key with three coding tracks and a

Hilfscodierbahn,

Fig. 9 shows another inventive key with three coding tracks and a

Hilfscodierbahn,

10 is a view of the spring-loaded locking elements of a lock cylinder according to the invention,

1 1 is a further view of the tumblers of FIG. 10, 12 is a schematic view of a lock cylinder according to the invention,

13 is a sectional view according to the key of Fig. 5,

14 is a sectional view according to the key of Fig. 3,

FIG. 15 is a sectional view according to the key of FIG. 7. FIG.

All embodiments according to the figures show a locking device of a motor vehicle with a key 10 to be used and a lock cylinder 1, which is arranged in a vehicle door. The lock cylinder 1 is inserted in a lock cylinder housing, not explicitly shown, within which a cylinder core 2 is rotatably mounted. The cylinder core 2 has numerous spring-loaded tumbler elements 30, 40. Furthermore, the cylinder core 2 is designed with a key channel 3, in which the key 10 can be inserted.

As shown in FIG. 10 and FIG. 11, the lock cylinder 1 according to the invention has a plurality of tumbler elements 30, 40 according to FIG. Here, the tumblers 30, 40 are divided into first tumblers 30 and second tumblers 40. The first retaining elements 30 have a plurality of individual retaining elements 31. The second tumblers 40 also have a plurality of individual tumblers 41. In the direction of the cylinder axis 4, the Einzelzuhalteelemente 31 and the Einzelzuhalteelemente 41 are arranged in alternating sequence to each other. In addition, the Einzelzuhalteelemente 31 each have a recess or a recess 31 a. The individual retaining elements 41, however, each have a projection 41 a. If the key 10 is not inserted within the channel 3, the tumblers 30, 40 protrude with their respective recesses 31 a and projections 41 a in the channel 3 and lock at the same time a rotation of the cylinder core 2 shown in Fig. 12 within the cylinder housing. In the present case, the tumblers 30, 40 are platelet tumblers. These tumblers 30, 40 are adjusted during insertion of a proper "right" key 10 such that the Einzelzuhalteelemente 31, 41 no longer on the outer surface of the cylinder core 2 from its openings. 5 protrude and the cylinder core 2 is thus rotatable in the cylinder housing. By a rotational movement of the inserted key 10, the user can then unlock an actuator of the motor vehicle by means of the locking device according to the invention and / or lock, depending on the direction of rotation of the key 10. Also by the rotational movement of the key 10, a switch can be actuated, the ignition, voltage for electronic components of the motor vehicle ect. activated and / or deactivated.

According to all described embodiments, the key 10 on outer surfaces 1 1 a, 1 1 b, 12a, 12b, which are designed with at least two Codierbahnen 50 which upon insertion of the key 10 in the channel 3 on the tumblers 30, 40 in particular to the Recesses 31 a, projections 41 a of the Einzelzuhalteelemente 31, 41 act. If the "correct" key 10 is inserted inside the channel 3, the tumbler elements 30, 40 can be correspondingly aligned on the cylinder core 2 via the coding tracks 50, so that a rotational movement of the cylinder core 2 is possible.

In a possible embodiment variant, the key 10 may have two coding tracks 51 a, 51 b. The coding tracks 51 a, 51 b are each provided on a narrow side 1 1 a, 1 1 b of the key 10. The broadsides 12a, 12b, however, have no coding.

In Fig. 2, a further embodiment of a key 10 is shown, which also has, as in Fig. 1, two coding tracks 51 a, 51 b on its narrow sides 1 1 a, 1 1 b. In addition, the first broad side 12a has an auxiliary coding path 60. The Hilfskodierbahn 60 has a linear extension, without any changes of direction on. In contrast, the coding tracks 51 a, 51 b according to FIGS. 1 and 2 have different coding points. These coding tracks 51 a, 51 b are determined by an individual topography. It is conceivable that the coding track 51 a is embodied differently geometrically than the coding track 51 b. In such a case, the key 10 would not be a reversible key. If, however, the coding track 51 a is mirror-symmetrical to the coding track 51 b, the key 10 according to FIG. 1 represents a reversible key.

Due to the auxiliary coding path 60 arranged only on the first broad side 12a, this key 10 likewise does not represent a reversible key. Fig. 3a and Fig. 3b show a further embodiment of a key 10 with two coding tracks 51 a and 52 a. Here, the first narrow side 1 1 a of the key 10, the coding path 51 a, wherein the first broad side 12a has the further coding path 52a. In contrast to the Codierbahnen 51 a of FIG. 1 to FIG. 3 on the narrow side 1 1 a, which is designed as a projection-like rib, the Codierbahn 52a of the first broadside 12a is formed as a groove-shaped depression. The key 10 according to FIGS. 3a and 3b does not represent a reversible key.

In Fig. 4, a key 10 with three coding tracks 51 a, 51 b, 52 a is shown. Two coding tracks 51 a, 51 b are each provided on a narrow side 1 1 a, 1 1 b. An encoder track 52a is provided on a broad side 12a. The opposite broad side 12b has no coding path. The recess 60 on the broad side 12a may be provided in an additional embodiment variant, wherein this recess 60 may serve as Hilfscodierelement.

Also in Fig. 5, a key 10 with three coding tracks 51 a, 52 a, 52 b is shown. The essential difference from the key 10 from FIG. 4 is that the key 10 from FIG. 5 has a coding track 52a, 52b on both broad sides 12a, 12b, and only the upper first narrow side 11a comprises a coding track 51a. The lower narrow side 1 1 b has no coding path. Both keys 10 according to FIGS. 4 and 5 represent vehicle keys which can not be used as reversible keys.

In Fig. 6, a further embodiment of a key 10 is shown, which also has on its outer surfaces three coding tracks 51 a, 52 a, 52 b. The key 10 according to FIG. 6 essentially corresponds to the key 10 according to FIG. 5, wherein only the coding track 52b is designed differently. According to FIG. 6, the coding path 52b of the second broad side 12b is projecting, protruding out of the second broad side, like the coding track 51a of the first narrow side 11a. Also this key 10 of FIG. 6 is not a reversible key.

Fig. 7 shows a key 10 with four coding tracks 51, 51 b, 52 a, 52 b. The Codierbahnen 51 a, 51 b of the narrow sides 1 1 a, 1 1 b are as groove-shaped projections. The coding tracks 52a, 52b of the broad sides 12a, 12b, however, are formed as groove-shaped recesses or depressions. The key 10 shown in Fig. 7 represents a reversible key, since coding tracks 51 a and 51 b are arranged mirror-symmetrically to each other. Furthermore, the coding tracks 52a and 52b are also arranged mirror-symmetrically to one another. Alternatively, it is conceivable to carry out the key shown in Fig. 7 with completely different coding tracks in their geometric orientation and course, so that a key is provided with four coding tracks 51 a, 51 b, 52 a, 52 b, which is not a reversible key.

In Fig. 8, a key 10 with three coding tracks 51 a, 51 b, 52 a is shown. In addition, the second broad side 12b has an auxiliary encoding path 60 that extends linearly along the orientation of the key 10. The additional Hilfskodierbahn 60 can increase the number of combination options.

Fig. 9 shows a further alternative embodiment of a key 10 with three coding tracks 51 a, 52 a, 52 b. In contrast to the embodiment according to FIG. 8, the key 10 according to FIG. 9 has an auxiliary coding path 60 on the second narrow side 11 b. This Hilfskodierbahn 60 also extends linearly along the extension of the key 10th

According to Fig. 10 and Fig. 1 1, the arrangement of the tumblers 30, 40 is shown schematically. Along the cylinder axis 4, the Einzelzuhalteelemente 31 are each arranged alternately to the Einzelzuhalteelemente 41. On the first tumbler 30 acts a spring force 33 which acts on a shoulder 34 of the Einzelzuhalteelementes 31. On the second Einzelzuhalteelement 41 acts a second spring force 44, which is aligned perpendicular to the spring force 33 in the present embodiment. It can now be provided that acts on all Einzelzuhalteelemente 31 each have the same spring force 33 in the same orientation of FIG. 10a. In order to further increase the security against burglary, provision may be made for the spring force 33 of the first individual retaining element 31 to act in a first direction according to FIG. 10a. On the following Einzelzuhalteelement 31 may act a spring force 33 which is opposite to the spring force 33 as shown in Fig. 10a aligned. It is likewise conceivable for the spring forces 44 to be aligned with the individual retaining elements 41 of the locking elements 40 in opposite directions to each other, which is shown particularly clearly in FIG. 11. FIG. 12 shows, by way of example, the cylinder core 2, which is mounted rotatably about the cylinder axis 4. In the opening or the channel 3, the key 10 can be used. When the key 10 is not inserted, the locking elements 30, 40 protrude out of the slot-shaped openings 5. When the "correct" key 10 is inserted in the cylinder core 2, the tumblers 30, 40 are correspondingly aligned and do not project out of the slot-shaped openings 5 of the shell of the cylinder core 2, allowing rotation of the cylinder core 2 about the cylinder axis 4. Further in Fig. 12 recesses 6 of the cylinder core 2 shown, in which spring elements are used, which exert a corresponding spring force in the direction 33, 44 on the respective Einzelzuhalteelemente 31, 41 of FIG. 10 to Fig. 1 1.

13 shows the cross-sectional area of the key 10 according to FIG. 5. In contrast, FIG. 14 shows the cross-sectional area of the key 10 from FIG. 3. FIG. 15 shows the cross-sectional area of the key 10 from FIG. All of FIGS. 13 to 15 particularly clearly show the respective coding tracks 51 a, 51 b, 52 a, 52 b on the respective sides 11 a, 11 b, 12 a, 12 b.

The illustrated examples according to FIGS. 1 to 15 may relate to an ID transmitter of a bidirectional safety system of a motor vehicle, wherein the key 10 is arranged on the ID transmitter unit. In this case, a bidirectional communication of the I D transmitter with a motor vehicle side unit.

S e c tio n s ia s

lock cylinder

cylinder core

channel

cylinder axis

opening

recess

key

a outer surface, first narrow side

b outer surface, second narrow side

a outer surface, first broad side

b outer surface, second broadside

tumblers

Einzelzuhalteelemente

a recess

Einzelzuhalteelemente

spring force

shoulder

tumblers

Einzelzuhalteelemente

a lead

Einzelzuhalteelemente

spring force

Codierbahn

a coding track

b coding path

a coding track

b coding path

Hilfscodierbahn

Claims

P ate n t nsp sk t

1. closing device of a motor vehicle with

a key (10) and a lock cylinder (1), wherein the lock cylinder (1) has a cylinder core (2) which is rotatably mounted in a cylinder housing of the lock cylinder (1),

a channel (3) which has the cylinder core (2) and into which the key (10) can be inserted,

spring-loaded tumbler elements (30, 40), which are mounted displaceably radially on the cylinder axis (4) of the lock cylinder (1) when the key (10) is inserted into the channel (3),

a plurality of outer surfaces (11a, 11b, 12a, 12b) provided on the key (10), which have at least two coding tracks (50) which act on the locking elements (30, 40) when the key (10) is inserted.

2. Locking device according to claim 1,

characterized,

the outer surfaces (11a, 11b, 12a, 12b) have two narrow sides (11a, 11b), in particular a first (11a) and a second narrow side (11b), and two broad sides (12a, 12b), in particular a first (12a) and have a second broad side (12b).

3. Locking device according to claim 1 or 2,

characterized,

in that the key (10) is designed as a reversible key, so that the key (10) can assume at least two positions in which the key (10) can be effectively inserted into the channel (3).

4. Locking device according to claim 3,

characterized,

in that at least both narrow sides (11a, 11b) and / or both broad sides (12, 12b) are each designed with a coding track (50), wherein the first narrow side (11a) having a first coding track (51a) and the second narrow side (11b) having a second coding track (51b) are executed, and / or the first broadside (12a) having a first coding track ( 51 a) and the second broad side (12b) are designed with a second coding track (52b), wherein at least the first coding track (51 a) of the first narrow side (1 1 a) mirror-symmetrical to the second coding track (51 b) of the second narrow side (1 1 b), and / or at least the first coding path (52a) of the first broad side (12a) is mirror-symmetrical to the second coding path (52b) of the second broad side (12b).

5. Locking device according to one of the preceding claims,

characterized,

the outer surfaces (11a, 11b, 12a, 12b) of the key (10) have three coding tracks (51a, 51b, 52a, 52b).

6. Locking device according to one of the preceding claims,

characterized,

the outer surfaces (11a, 11b, 12a, 12b) of the key (10) have four coding tracks (51a, 51b, 52a, 52b).

7. Locking device according to one of the preceding claims,

characterized, in that the key (10) has two coding tracks (51a, 51b, 52a, 52b), the first (11a) and the second broad side (11b) each having a coding track (51a, 51b, 52a, 52b), or

the first (12a) and the second narrow side (12b) each have a coding track (51a, 51b, 52a, 52b), or

the first broad side (12a) and the first narrow side (11a) each have a coding track (51a, 51b, 52a, 52b).

8. Locking device according to one of the preceding claims,

characterized,

in that the key (10) has three coding tracks (51a, 51b, 52a, 52b), the first (12a) and the second broad side (12b) each having a coding track

(51a, 51b, 52a, 52b) and the first narrow side (11a) have a Codierbahn (51a, 51b, 52a, 52b) or the first (11 a) and the second narrow side (11 b) each have a coding path

(51a, 51b, 52a, 52b) and the first broad side (12a) have a coding path (51a, 51b, 52a, 52b).

9. Locking device according to one of the preceding claims,

characterized,

in that the key (10) has four coding tracks (51a, 51b, 52a, 52b), the first (12a) and the second broad side (12b) each having a coding track (51a, 51b, 52a, 52b) and the first (12) 11a) and the second narrow side (11b) each have a coding track (51a, 51b, 52a, 52b).

10. Locking device according to one of the preceding claims,

characterized,

in that the key (10) is a four-edged flat profile which in each case has narrow sides (11a, 11b) and broad sides (12a, 12b) in pairs opposite each other on the one hand.

11. Locking device according to one of the preceding claims,

characterized,

in that the coding track (51 a, 51 b, 52 a, 52 b) is designed as a groove or as a rib.

12. Locking device according to one of the preceding claims,

characterized,

in that the coding track (51a, 51b, 52a, 52b) has at least one guide surface which acts on associated tumbler elements (30, 40), in particular that the first coding track (51a, 51b, 52a, 52b) acts on first tumbler elements ( 30) and the second coding track (51 a, 51 b, 52 a, 52 b) acts on second locking element (40), wherein in particular

a displacement of the first locking elements (30) in a first radial direction to the cylinder axis (4) takes place and a displacement of the second locking element (40) in a second radial direction, which is perpendicular to the first radial direction, to the cylinder axis (4).

13. Locking device according to claim 12,

characterized,

the first tumbler elements (30) and the second tumbler elements (40) are arranged in alternating sequence in the cylinder core (2).

14. Locking device according to one of the preceding claims,

characterized,

in that the first retaining elements (30) have a multiplicity of individual retaining elements (31, 32) which are each spring-loaded in different directions, and / or the second retaining elements (40) have a plurality of individual retaining elements (41, 42), each in different ones Directions are spring loaded.

15. Locking device according to one of the preceding claims,

characterized,

in that at least one narrow side (11a, 11b) has a rib as coding track (51a, 51b, 52a, 52b) and at least one broad side (12a, 12b) has a groove as coding track (51a, 51b, 52a) , 52b).

16. Locking device according to one of the preceding claims,

characterized,

in that the key (10) has at least one auxiliary coding path (60) which is provided on the narrow side (11a, 11b) and / or on the broad side (12a, 12b), which in particular has a turning function of the key (10). excludes.