DE102006058558A1 - Reversible key for profile cylinder - Google Patents

Abstract

The present invention relates to a reversible key for profile cylinder, which has outgoing from the key tip, arranged on its two broad sides recesses, which have at least two variation edges, a system of such reversible keys for a system of associated profile cylinders and profile cylinder and such reversible key, in particular for Use in locking systems.

Description

The The present invention relates to reversible keys for profile cylinders after Oberbergriff of the main claim.

Farther The invention relates to a system of reversible keys and a system associated therewith Profile cylinders according to the preamble of claim 5 and profile cylinder and reversible key according to the preamble of claim 8.

Basically it works the invention of a reversible key, also referred to as a flat key will and to close an associated profile cylinder is used.

such a reversible key has incisions of different incision depths on its two narrow edges on, which serve to provide the profile cylinder in a row Pin tumblers align so that the lock cylinder be operated can.

at such a reversible key are essential to the invention both narrow edges of the key shaft provided with mutually mirror-inverted incisions, thus the reversible key in the key channel of the lock core in the two possible ones to each other by 180 degrees offset insertion positions, in the present application as key reversal orders designated, can be inserted.

Such reversible keys from the house of the applicant are known for example from the EP 1 503 010 A1 ,

Furthermore, from the DE 199 39 734 A1 a reversible key is known in which on both broad sides of the key shaft of the key tip outgoing and a piece to the crayon extending recesses are provided.

These Recesses serve to align complementary pin tumblers via a bevel deflecting mechanism when inserting the reversible key actuated become.

These supplementary Pin tumblers are located at the inner end of the lock cylinder and correspond in their structure basically the usual pin tumblers from core pins and cylindrical pins and, if necessary, pens.

The Relocation of pin tumblers via the above-mentioned bevel pairings might but only with the help of additional lubricant one hakelungsfreie operation of the lock cylinder enable.

moreover Although variations are possible with such control pins, however no access authorizations in hierarchical order.

It is therefore an object of the present invention, from the EP 1 503 010 A1 educate known reversible key so that in addition to an improved copy protection and an increased number of variations in a hierarchical arrangement is possible.

These Task solves the invention with the features of the main claim.

Furthermore It is an object of the invention, with the reversible key according to the invention a system of such reversible keys and associated profile cylinders Access authorizations in at least two predetermined hierarchical levels to accomplish.

These Task solves the invention with the features of claim 5.

A Another subtask of the invention is based on measures indicate the profile cylinder, with which on the known pin tumblers In addition, a blocking or release of the lock cylinder via a correspondingly designed reversible key possible becomes.

These Subtask triggers the invention with the features of claim 8.

The Invention is characterized in that on one and the same reversible key in addition to the usual Sections on the narrow edges and possibly provided holes on the broad sides of the key shaft for aligning any laterally arranged pin tumblers on each broadside an additional Contour cutting is provided, which has the variation edges, which by location, distance from the key tip and geometric course not readily on conventional Machines are copied.

It Consequently arises by the inventive measures a reversible key, which for Copy an additional Tool needs and also an additional Abtastwerkzeugs to the attach two provided variation edges on a Nachschlüssel.

Both Must have variation edges therefore regarding their absolute position on the key and their relative position to each other for a matching duplicate key in correspondence be made with the original dimensions, otherwise of it It can be assumed that the possibly unauthorized manufactured duplicate key is not closes.

The Arrangement of two variation edges on each of the two Key broadsides allows about that In addition, a variety of possible variations, because each of the both variation edges in terms of their distance from the key tip, their geometric course, their width must be made individually and still the relative positions of both variation edges to each other also to take into account are.

Out The invention therefore has the advantage that an impermissible copy such reversible key only at considerable expense ever produced is, so that the turning key according to the invention actually a offers significantly better copy security than the known systems.

Of the Turnkey according to the invention comes Therefore, contrary to the interests of consumers after increased copy security, in particular also because the variation edges are preferred should stand perpendicular to the broad sides of the key shaft.

Alone For the production of these geometric features, a metal-removing machining is required Tool, which with its axis of rotation perpendicular to the broad sides of the reversible key is, for. B. a cylindrical cutter and a corresponding scanning device.

there it is advantageous that both variation edges on each broadside, So a total of four variation edges per reversible key, not to look at is whether they actually for the activity correspondingly assigned displaceable stop surfaces in lock cylinder are provided or not.

Alone the presence of - a total of - four variation edges can during the reproduction of an (inadmissible) key copy not be overlooked so that already for this reason the measures according to the present invention the production inadmissible key Copy considerably more difficult.

Furthermore have to the two variation edges on each broad side of the reversible key with respect to both possible Key turning positions be arranged mirror images of each other. This requirement sets an increased manufacturing precision ahead.

The activities enable according to the present invention about that In addition, the use of such reversible key and possibly assigned profile cylinder in addition to existing locking systems, because the reversible key according to the invention indeed is designed to close subordinate profile cylinder whose reversible key but are not suitable, parent Close profile cylinder.

Consequently the invention also creates the possibility locking with existing profile systems possibly in the sense of improved To complement copying security.

For certain applications, even the reversible key could be the lowest hierarchy EP 1 503 010 A1 be made while at least the reversible key highest hierarchy must have the features of the present invention.

It are also embodiments conceivable in which the reversible key the middle hierarchy on its broadsides either no or have only a single variation edge per broadside.

The Invention thus also improves the possible number of variations within already existing locking systems but improved in particular the copy security of the reversible key of highest hierarchy.

In a practical embodiment the two variation edges on each broad side of the reversible key of formed two successively arranged pockets, of which the the key tip facing pocket starts with a relatively large width.

At the The end of this first bag then closes a smaller one Pocket with a smaller width and sits a piece in the direction to the key crop continued.

At the End of the second pocket becomes the second variation edge in this way formed while the Variation edge of the first pocket through which the key crop facing end of this bag arises.

The Variation edges can transverse, oblique, vertical or curved to the longitudinal direction of key shank they have to get lost only the longitudinal direction cut in any way, so when inserting the reversible key in the profile cylinder a transverse to the insertion direction stop edge at the reversible key is ready.

The Design of the variation edges in longitudinal section is almost arbitrary.

A optimal stop variation results z. For example, at variation edges, the - in longitudinal section of the reversible key - vertical on the broad sides of the key shaft stand.

It but it is also possible the variation edges z. B. to produce by truncated cone.

The Variation edges would then stand at an appropriate angle on the broad sides of the reversible key.

there should the geometry of the variation edges - seen in longitudinal section - with the Geometry corresponding in the profile cylinder provided counter-stops match complementary.

Around about that also over long time a wear-free interact between the variation edges of the reversible key and the associated counter-attacks in the lock cylinder to achieve is complementary proposed in the lock core of the profile cylinder to provide a variation slider, with two in the key channel projecting stop forks is equipped, one each with one of the two variation edges of the reversible key interacts.

This is thereby enabled that each of the two stop extensions in the key channel protrudes, both abutment processes in the longitudinal direction of keyway are arranged one behind the other and in the transverse direction at the height respectively the associated variation edge of the inserted reversible key.

There the variation slide is seated within a longitudinal recess of the lock core, he can by interaction between edge of variation and associated Overlay extension can be relocated within the lock core and so for the operation supplementary Tumble elements are used.

To For this purpose, the variation slider has a release pocket, in which with appropriate axial positioning within the longitudinal recess in the lock core The transverse extension of a locking bar can engage, making the locking bar off its locking position is displaced to its release position.

These activities favor therefore by simple locking / unlocking position without geared transmission links between the variation slider and the transverse extension of the locking bar long-term wear-free Cooperation.

For this are embodiments specified.

From Another particular advantage is that both the stop geometry of the variation slide as well as the arrangement of the variation edges in principle freely selectable is, so turning key is the present invention in supplement existing plants additional Hierarchies can emerge and equally well allow for different security requirements.

To For this purpose, it is proposed the reversible key according to the present invention and the corresponding profile cylinders with their variators for the respective hierarchy or security request if possible to settle high up, z. B. in a general master key and important parent keys or even single keys to doors special security requirements.

in the Below, the invention will be explained in more detail with reference to embodiments.

It demonstrate:

1 a first embodiment of the invention, first variation edge engaged;

1a a further embodiment of the invention, second variation edge engaged;

2 Another embodiment gem. 1 ;

2a Another embodiment gem. 1a ;

3 an embodiment of a reversible key highest hierarchy;

4 an embodiment of a reversible key deviating access authorization;

5 an embodiment for a reversible key lower hierarchy;

6 an embodiment for a reversible key bottom hierarchy;

7 to 9a Cooperation between reversible key and associated profile cylinder;

10a to 10d Reversible key and lock cylinder, variation slide and locking strip;

11a to 11d Examples of a variation slider;

12a to 12b Interaction between stopper extension and variation edge;

13a to 13b Interaction between stopper extension and variation edge;

14a to 14e Further details on reversible key, variation slide, stop extensions

Provided Unless otherwise stated below, the following applies Description always for everyone Characters.

The figures show a reversible key 1 ,

It is a reversible key for an associated profile cylinder 19 ,

The reversible key 1 is designed as a flat key and can in two positions offset by 180 degrees to each other plug-in positions in the keyway 26 of the profile cylinder are inserted.

On the two narrow edges 4 of the reversible key 1 are mirror images arranged incisions 6 provided different cutting depths.

Since it is a reversible key, the cuts are 6 arranged in mirror image with respect to the two possible key reversal positions.

The cuts 6 serve the alignment of so-called pin tumblers, which are provided in the form of core pins, housing pins and possibly Aufbaustiften in profile cylinder.

In addition to this are on the broadsides 5 of the key shaft 2 recesses 8th provided by the key tip 7 a piece towards the key crop 3 extend.

The recesses 8th are on the opposite broadsides 5 of the key shaft arranged so that they are mirror symmetric with respect to the two possible key reversal positions.

It shows each of the two Ausnehungen 8th at least two different in the transverse direction 11 of the key shaft 2 running variation edges 12 . 13 on.

The two variation edges are independent of each other and of the key tip 7 accessible.

This means that they are with respect to the longitudinal direction 9 the key shaft, which by the longitudinal profile of the tread ribs 10 is given, in different transverse areas of the key shaft 2 are arranged.

The first variation edge 12 So it is in a first cross-section 14 while the second variation edge 13 in the second transverse area 15 is arranged.

Both transverse areas 14 . 15 pointing in the longitudinal direction 9 a longitudinal distance 16 on each other so that each variation edge 12 . 13 is capable of another longitudinal area in the keyway 26 of the profile cylinder 19 to paint over.

hereupon will be discussed.

Because of the two variation edges 12 . 13 in different transverse areas 14 . 15 are arranged, they are also accessible independently.

To show the 1 to 2a different embodiments.

In case of 1 hits the first variation edge 12 from a certain insertion depth in the keyway on the assigned first stop extension 28 and displaces it with further insertion in its direction of movement (see, for example, US Pat. 13b ), while the second stopper extension 29 no contact with the second variation edge 13 receives.

Since both stop processes 28 . 29 on one and the same component in the lock core 25 of the profile cylinder 19 the distance between the stopper remains 28 and stopper extension 29 on the whole way get this component by means of the reversible key 1 is shifted when plugging.

Individual control functions in the profile cylinder can therefore be achieved via the respective possible displacement path 19 which will be discussed later.

1a and 2a on the other hand show a missing first variation edge 12 whereas the second variation edge 13 for acting on the second stopper extension 29 serves.

In these embodiments, therefore, the first stop extension 28 unhindered into the void, while the second stopper extension 29 from the second variation edge 13 is charged in the above sense.

In the embodiments shown 1 to 2a is the general course of the variation edge 12 . 13 transverse to the longitudinal direction 9 of the key shaft 2 shown.

In the embodiment of 1 runs the first variation edge 12 diagonally to the key longitudinal direction.

The second variation edge 13 runs in all embodiments perpendicular to the longitudinal direction and beyond in 2 also the first variation edge 12 ,

The geometric course of the variation edge 12 . 13 is therefore in principle freely selectable, without departing from the basic idea of the invention.

Both recesses 8th are introduced at the key tip and thus weaken the key cross-section only in this relatively insensitive area.

The each mirror image arranged recess is located on the back and is recognizable by the dashed contour shown.

In addition, the figures show embodiments in which each recess 8th at the key tip 7 with a pocket of constant width 17 begins, towards which towards the key crop 3 another bag of smaller width 17a followed. In this way, the variation edges become 12 . 13 each formed by the end portion of each bag.

Consequently, at the end region of each pocket, one becomes transverse to the longitudinal direction 9 of the key shaft 2 extending edge region formed, the respective variation edge 12 respectively. 13 can arise.

Only manufacturing advantage is a development in which each recess 8th about their respective length 18 has a constant depth T.

The illustrated recesses 8th can therefore be produced by means of a suitably prepared milling device.

In addition, the show 3 - 6 a system consisting of a total of 4 reversible keys for a system of assigned profile cylinders.

The individual key cross-sections of the reversible key according to 3 - 6 have a manufacturer specified arrangement of profile ribs 10 on.

The tread ribs 10 are pronounced in this embodiment in all reversible keys in the same way.

The individual reversible keys form a predetermined hierarchy of the type that the reversible key highest hierarchy 20 Close all profile cylinders, the reversible keys of lower hierarchy 21 those profile cylinders which correspond to this hierarchy as well as subordinate profile cylinders and the reversible key of the lowest hierarchy 22 only the profile cylinders of the lowest hierarchy.

In this system, at least the reversible keys have the highest hierarchy 20 recesses 8th on, the at least two different and independent in the transverse direction 11 to the longitudinal direction 9 of the key shaft 2 running variation edges 12 . 13 form.

Both variation edges 12 . 13 are over the respective recess 8th from the key tip 7 starting independently accessible.

This means that every variation edge 12 independent of the other variation edge 13 and vice versa for actuating a stop provided in the profile cylinder is designed.

Furthermore, both are variation edges 12 . 13 one broadside 5 regarding the two key reversal positions with the two variation edges 12 . 13 on the - here - invisible back of the key shaft 2 arranged mirror-inverted.

It is therefore essential that at least the reversible key highest hierarchy 20 with the above-mentioned features to the respective two variation edges 12 . 13 are designed.

Like a comparison of 3 - 6 shows are all turning keys with matching mirror-inverted cuts 6 equipped on their narrow edges.

All reversible key shut down hence the pin tumblers associated with the profile cylinders via their Narrow edges.

In addition to this, the reversible keys of the 4 and 5 Lateral bores, which serve for aligning more laterally arranged in the profile cylinder pin tumblers, the reversible key according to 4 operated due to the different axial position a different Stiftzuhaltung than the reversible key gem. 5 ,

Both lateral pin tumblers are gem. 3 actuated.

Therefore, this reversible key aligns the pin tumblers on his narrow edges just like the other reversible wrench and beyond the lateral pin tumblers gem. 4 and 5 ,

Furthermore, the reversible key the 4 . 5 and 3 a supplementary hierarchy.

The reversible key gem. 5 has at its tip a recess in the sense of the features of claims 1 to 4 with the difference that only a single variation edge 12 is provided.

These Variation edge can be on a suitably designed stop in the profile cylinder and hit it until it reaches the key stop relocate.

The parent key 4 and 3 are also able to do this.

In addition, however, has a reversible gem. 5 Parent key acc. 4 another variation edge 13 on, located at the end of the pocket of lesser width 17a is located and operated in a particular insertion position of the reversible key in the profile cylinder arranged there stop.

This stop is gem. 5 not reached because previously the leading first variation edge 12 takes effect.

The second variation edge that eventually becomes effective 13 should hit a correspondingly arranged stop in the profile cylinder and displace it according to their geometric longitudinal geometry.

One such key could therefore operate a special group of lock cylinders.

As well as a comparison of 4 and 5 shows, both keys have a first variation edge 12 and a second variation edge 13 on.

In case of 5 However, that became the key tip 7 facing wide pocket so far towards the key crop 3 extended, as is the bag of smaller width 17a according to a key 4 requires.

This makes it clear that the formation of the two variation edges 12 and 13 is practically arbitrary, as long as the distance between the two variation edges and of course the distance of one of the variation edges of the depth stop of the reversible key in accordance with the profile cylinder 19 provided stop processes 28 . 29 , which will be discussed, is respected.

In addition, shows 3 the key of the highest ranking, z. B. the master key.

This reversible key also has two variation edges 12 . 13 on, of which the first variation edge 12 with the same variation edge 12 the subkey 4 and 5 matches.

The general master key also has the two side recesses, which are necessary for actuating the corresponding pin tumblers, which according to the profile cylinders for the reversible wrench. 4 and 5 are provided.

In addition, the second variation edge 13 shifted so far to the rear of the main master key that the associated stop extension in the profile cylinder by none of the key gem. 4 and 5 can be achieved.

This means that the general master key according to 3 Although designed to the profile cylinder of the key gem. 4 and 5 to close, but not vice versa, because the general key to the relevant appendix 28 in the profile cylinder 19 always over the first variation edge 12 aligns. So he does this in all profile cylinders 19 the entire locking system can unhindered, extends its second variation edge 13 so far towards the key crop 3 in that at least the largest length used in this locking system 18 is reached.

The 7 to 9a show the interaction between the general master key gem. 3 and an associated profile cylinder.

For reasons of clarity, the so-called variation slider 27 (on the basis of the 10 to 14 will be discussed) omitted.

The variation slider is the subject of the 8th . 8a ,

The 8th . 8a Correspond to sectional views along the line VIII-VIII according to 7 ,

Accordingly, the correspond 9 . 9a Sectional views acc. the line IX-IX in 7 ,

The reversible key 1 is completely in the key channel of the lock core 25 plugged in.

The profile cylinder 19 points in its dock area 23 in a single row arranged pin tumblers 24 on, which consist of cylindrical pins and core pins in a conventional manner.

These pin tumblers are from the incisions 6 of the reversible key located in the keyway 1 aligned, so that they are with their parting line in the plane of rotation of the lock core 25 be Find.

in this respect Reference is made to the prior art.

One recognizes by means of the 8th . 8a beyond that, the recesses 8th over the entire length 18 have a constant depth T.

The depth T of the recesses 8th is in any case smaller than half the thickness of the key shaft 2 ,

Because the recesses 8th in the area of the key tip 7 is the stability of the reversible key 1 practically only insignificantly limited.

It is essential that in the lock core 25 of the profile cylinder 19 a variation slider 27 is provided, which two in the longitudinal direction 9 of the key channel 26 one behind the other and in the transverse direction 11 at the height of one of the variation edges 12 . 13 the inserted reversible key 1 arranged and from one side into the key channel 26 projecting stop extensions 28 . 29 and that the variation slider 27 within a longitudinal recess 30 of the lock core 25 is axially displaceable.

This is based on the 7 - 8a with the help of the 10 to 14 explained in more detail.

For this purpose, the figures show a lock core 25 at its inner end, ie at the end, which is the cam of the profile cylinder 19 facing, a longitudinal recess 30 is arranged.

Inside the longitudinal recess 30 sits in it axially displaceable variation slide 27 ,

The variation slider 27 has an axial length which is less than the length of the longitudinal recess 30 ,

Within the difference in length is therefore the variation slider 27 in the longitudinal recess 30 displaceable.

The longitudinal recess intersects, as can be seen in particular 8th . 8a results in the key channel 26 on the side.

There are two with the variation slider 27 firmly connected flush extensions 28 . 29 into the keyway.

The stop processes 28 . 29 are in height positions of the key channel 26 arranged where the first and the second variation edge 12 . 13 of the reversible key when inserting into the key channel 26 sweep past.

Is it one for this profile cylinder 19 Accessible reversible key, meets one of the two variation edges 12 . 13 on the assigned stopper extension 28 . 29 and thus shifts the variation slider 27 towards the cambar.

The displacement path depends on the arrangement of the respective variation edge 12 . 13 at the reversible key 1 ,

Because the variation slider 27 beyond the direction of insertion of the reversible key under the preload of a spring 31 stands, he always takes the in 10a recognizable preferential position, as long as it is not operated by an inserted reversible key.

In this starting position must be one of the two stop extensions 28 . 29 interact with the inserted reversible key.

Assigns the reversible key accordingly 6 no recess according to the invention 8th on, becomes the variation slider 27 shifted technically functionally and the relevant profile cylinder 19 not released.

On the other hand, he has one for one of the two variation edges 12 . 13 decorated stopper extension 28 . 29 on, the variation slider becomes corresponding 10c so far shifted that he accordingly 8th . 8a a locking bar 33 can release.

How the particular 8th . 8a and 11a to d as well 12a and c to g show this, becomes the longitudinal recess for this purpose 30 in the lock core 25 , which the variation slider 27 from a secantial in the lock core 25 extending recess 38 crossed.

The variation slider 27 has at a predetermined location, with the recess 38 combs, a release pocket 32 on.

The release bag 32 is in this sense a secantially oriented continuation of the recess 38 , which also secantially in the lock core 25 runs.

There is a transverse process 34 a locking bar 33 guided.

The transverse process 34 the locking bar 33 can with appropriate orientation of the release pocket 32 Tuck into the latter, leaving the locking bar 33 . usually in the circular cylinder surface 35 between locking core 25 and the housing of the profile cylinder 19 is, then upon rotation of the lock core 25 from a corresponding recess 37 can be lifted out.

Then the lock core 25 of the profile cylinder 19 be turned freely.

In addition, it should be said that the Sperrleite 33 towards the housing of the profile cylinder 19 also by a spring 36 can be acted upon, preferably approximately in the middle of the locking bar 33 attacks.

In addition, the show 7 and 9 . 9a the interaction of the reversible key 1 gem. 7 with the complementary locking pins at position IX-IX according to 7 ,

The locking pins are provided with their in the keyway 26 pointing ends in the corresponding recesses of the reversible key 1 immerse.

Indicates the reversible key 1 corresponding 4 - 6 these recesses are not in the right place, exists for this profile cylinder 19 no access authorization.

The locking pins 39 thus prevent in their position according to 9 in which they are not in a corresponding recess of the reversible key 1 immersed, through a common contact surface to a corresponding transverse process 34a the locking bar 33 in that these from their depression in the housing of the profile cylinder 19 can exit, allowing a rotation of the lock core 25 is excluded.

Indicates the reversible key 1 however the true reduction on its broadside 5 on, the locking pin can dip into this reduction and the locking bar 33 gives the rotation of the lock core 25 free.

These Locking pins can simple according to the invention or be provided several times, in particular also for the variation of Serve access authorizations.

In addition to this show in particular 8th to 9a a special feature.

The locking bar 33 sits in a depression 37 the housing of the profile cylinder 19 ,

The recess is formed so that when aligned in the release position longitudinal recess 30 of the variation slider 27 so if the transverse process 34 in the release pocket 32 can retract, the locking bar 33 upon rotation of the lock core 25 from the depression 37 is lifted out, leaving the lock core 25 is freely rotatable.

Also has the reversible key 1 according to z. B. 6 no recess 8th at the key tip 7 This leads to a shift of the variation slider 27 corresponding 10b until the rear stop, which is technically not a release of the locking bar 33 leads, because the release pocket 32 not with the transverse process 34 is congruent.

The lock core 25 can not turn therefore.

The illustrations according to 10c respectively. 10d show possible release orders, depending on the position of the release pocket 32 , which when fully inserted reversible key 1 is reached.

Thus, for example, one and the same variation slider can be moved in the release position of different keys with differently executed recesses 8th , for example, could be the release pocket 32 in the variation slide 27 be made correspondingly long or it could be a separate release pocket for both positions 32 in the variation slide 27 be provided.

In addition to this show 11a to d different views differently executed variation slider 27 ,

The interaction of the stop processes 28 . 29 on reversible keys 1 with differently shaped recesses 8th is in the 12ab . 13ab shown.

11a is a view of the variation slider 27 according to 11c from underneath.

The stop processes 28 . 29 have different profile cross-sections in such a way that each with one of the two variation edges 12 . 13 also only one of the stop extensions 28 . 29 interacts.

In this regard, a comparison of the 11c and d, that the distance of the effective areas of the variation edges 12 . 13 with unchanged dimensions of the variation slide 27 is variable.

This also applies to the respective profiles of the stop extensions 28 . 29 how it turned out 11b results.

Shown is a frusto-conical profile for the first stop extension 28 and an overall rectangular profile for the second stopper extension 29 ,

How to compare this 12 and 13 shows, fits the frustoconical stopper extension 29 in a correspondingly profiled recess 8th of the reversible key 1 , while in the profile rectangular stop extension 28 only in the corresponding recess 8th of the reversible key 1 fits, which is also designed rectangular.

Further embodiments of the arrangement and profiling of the stop extensions 28 . 29 arise from 14a to g.

The embodiments shown there are provided with the same reference numerals as the embodiments shown so far and illustrate that both the functional lengths of the variation slider, the stop extensions and the recesses and the position of the release pocket 32 whose size and number can be varied.

For the in 14a to g shown embodiments, the disclosures made to the references shown there apply in a corresponding manner.

1

reversible key

2

key shaft

3

key grip

4

narrow edge

5

broadside

6

incision

7

key tip

8th

recess

9

longitudinal direction

10

tread rib

11

transversely

12

first variation edge

13

second variation edge

14

first cross section

15

second cross section

16

longitudinal distance

17

width

17a

lower width

18

length

19

profile cylinder

20

Turnkey of highest hierarchy

21

Reversible key lesser hierarchy

22

Reversible key at the bottom hierarchy

23

web region

24

pin tumbler

25

lock core

26

keyway

27

varying slider

28

first Stop extension

29

second Stop extension

30

Longitudinal recess in 25

31

Spring for 27

32

release pocket

33

locking bar

34

Transverse process

34a

Transverse process

35

Circular cylindrical surface

36

Spring for 33

37

deepening

38

Recess in 25

39

locking pin

T

depth

Claims (16)

Reversible key ( 1 ) for profile cylinders ( 19 ), the reversible key ( 1 ) on its two narrow edges ( 4 ) with mirror-inverted incisions ( 6 ) is provided with different cutting depths, which are arranged in mirror image with respect to the two key reversal positions, and in which on both broadsides ( 5 ) of the key shaft ( 2 ) from the key tip ( 7 ) and a piece to the key crop ( 3 ) extending recesses ( 8th ) are provided, characterized in that each of the two recesses ( 8th ) at least two different and independent transverse ( 11 ) to the longitudinal direction ( 9 ) of the key shaft ( 2 ) running variation edges ( 12 . 13 ) formed over the respective recess ( 8th ) both from the key tip ( 7 ) are accessible from each other independently and that both variation edges of a broad side with respect to the two key reversal positions with the two variation edges of the other broad side also mirror images match. Reversible key ( 1 ) according to claim 1, characterized in that the variation edges ( 12 . 13 ) each recess ( 8th ) in different transverse areas ( 14 . 15 ) of the key shaft ( 2 ) and in the longitudinal direction ( 9 ) a longitudinal distance ( 16 ) from each other. Reversible key ( 1 ) according to claim 1 or 2, characterized in that each recess ( 8th ) at the key tip ( 7 ) with a pocket of constant width ( 17 ) begins, to which a pocket of smaller width ( 17a ) and that the variation edges ( 12 . 13 ) are formed at the end of each bag. Reversible key ( 1 ) according to one of claims 1 to 3, characterized in that each recess ( 8th ) over its entire length ( 18 ) has a constant depth. System of reversible keys ( 1 ) for a system of associated profile cylinders ( 19 ) with a manufacturer specified arrangement of profile ribs ( 10 ), which form individual key cross-sections, with reversible key ( 1 ) and profile cylinder ( 19 ) Access authorizations in a predetermined hierarchy form such that the reversible key of highest hierarchy ( 20 ) close all profile cylinders, the reversible keys of lower hierarchy ( 21 ) Closing profile cylinders of their hierarchy or subordinate hierarchy and the reversible key of the lowest hierarchy ( 22 ) Close only the profile cylinder of the lowest hierarchy, characterized in that in this system at least the reversible key highest hierarchy ( 20 ) are equipped with the features of claims 1 to 4. System according to claim 5, characterized in that the reversible key of lesser hierarchy ( 21 ) with recesses ( 8th ), which on each broad side recesses with at most a single variation edge ( 12 ; 13 ) according to one of claims 1 to 4, each extending transversely to the longitudinal direction of the key shaft and both are arranged with respect to each other with respect to the two key reversal positions mirror images. System according to claim 5 or 6, characterized in that the reversible key is the lowest hierarchy ( 22 ) No recesses with the features according to one of claims 1 to 4 or 6 are configured. Profile cylinder ( 19 ) and reversible key ( 1 ) according to one of claims 1 to 7, wherein the profile cylinder ( 19 ) in its land area ( 23 ) with single-row pin tumblers ( 24 ) of the incisions ( 6 ) of the key channel ( 26 ) inserted reversible key ( 1 ), characterized in that in the lock core ( 25 ) of the profile cylinder ( 19 ) a variation slider ( 27 ), the two longitudinally ( 9 ) of the key channel ( 26 ) in succession and in the transverse direction ( 11 ) at the level of one of the variation edges ( 12 ; 13 ) of the inserted reversible key ( 1 ) and from one side into the key channel ( 26 ) projecting stop extensions ( 28 . 29 ), and that the lock core ( 25 ) a longitudinal recess ( 30 ) within which the variation slide ( 27 ) is axially displaceable. Profile cylinder ( 19 ) and reversible key ( 1 ) according to claim 8, characterized in that the variation slide ( 27 ) at the inner end of the lock core ( 25 ) sits. Profile cylinder ( 19 ) and reversible key ( 1 ) according to one of claims 8 or 9, characterized in that the variation slide ( 27 ) by a spring ( 31 ) towards the outer end of the lock core ( 25 ) is displaceable in defined end position. Profile cylinder ( 19 ) and reversible key ( 1 ) according to one of claims 8 to 10, characterized in that the longitudinal recess ( 30 ) in the lock core ( 25 ), which the variation slide ( 27 ), from a secantial in the lock core ( 25 ) extending recess ( 38 ) and that the variator ( 27 ) in at least one predetermined axial position at its with the recess ( 38 ) combing place a release pocket ( 32 ), wherein in the secant recess ( 38 ) a transverse process ( 34 ) a locking bar ( 33 ), which is not in the release pocket ( 32 ) located transverse process ( 34 ) the circular cylindrical surface ( 35 ) between lock core ( 25 ) and housing of the profile cylinder ( 19 ). Profile cylinder ( 19 ) and reversible key ( 1 ) according to claim 11, characterized in that the locking strip ( 33 ) in the direction of the housing of the profile cylinder ( 19 ) by spring ( 36 ) is acted upon. Profile cylinder ( 19 ) and reversible key ( 1 ) according to claim 11 or 12, characterized in that the locking strip ( 33 ) in a depression formed in this way ( 37 ) of the housing of the profile cylinder ( 19 ) is seated so that it is in the release position aligned release pocket ( 32 ) of the variation slide ( 27 ) by rotation of the lock core ( 25 ) from the depression ( 37 ) of the housing of the profile cylinder ( 19 ) slides out. Profile cylinder ( 19 ) and reversible key ( 1 ) according to one of claims 8 to 13, characterized in that profile cylinder ( 19 ) and reversible key ( 1 ) Part of a locking system consisting of several profile cylinders and reversible keys ( 20 . 21 . 22 ) in a predetermined hierarchy of access authorizations. Profile cylinder ( 19 ) and reversible key ( 1 ) according to one of claims 8 to 13, characterized in that profile cylinder ( 19 ) and reversible key ( 1 ) Part of a group of profile cylinders ( 19 ) and reversible keys ( 20 . 21 . 22 ) with different safety requirements, wherein at least the profile cylinders ( 19 ) higher safety requirements with variation slides ( 27 ) are equipped. Profile cylinder ( 19 ) and reversible key ( 1 ) according to claim 15, characterized in that the profile cylinders ( 19 ) lower safety requirements without variation slide are equipped.