EP2998471B1 - Key and lock cylinder with key - Google Patents

Description

TECHNICAL AREA

The present invention relates to a key according to the preamble of claim 1 and a rotary lock cylinder with the key according to the preamble of claim 7.

STATE OF THE ART

From the EP 0 621 384 is a key with a matching rotary lock cylinder has become known. In the shaft of the key, a control is arranged, which cooperates with an additional locking of the rotor.

Although the keys and rotary lock cylinder according to the EP 0 621 384 As particularly tamper-proof, it is a need of many to increase the security against copying of such a key or rotary lock cylinder even further by the query security is further increased.

From the FR 2 776 327 is a key for a rotary lock cylinder according to the preamble of claim 1 become known.

PRESENTATION OF THE INVENTION

Starting from this prior art, the invention has for its object to provide a key and a rotary lock cylinder, which is even safer regarding manipulation attempts. Next is preferably the copy security of such a key can be further increased and the number of Schliesspermutationen should also be increased.

Such a problem is solved by the key according to the subject matter of claim 1. Accordingly, a key for a rotary lock cylinder comprises a key handle and a key shank adjoining the key handle and extending along a longitudinal axis. The key shank comprises on its outer side control recesses, in particular control bores, for the arrangement of tumblers on the rotary-key cylinder and at least one control element arranged movably in the key shank. The control has a cooperating with a tumbler of Drehschliesszylinders control surface. Further, the key shank in the region of the control member has a tapered cross section, which is tapered with respect to the cross section with the control recesses, wherein the tapered cross section or another tapered cross section spaced from the key tip between the key tip and the key handle is arranged, the key shank between the key tip and the tapered cross-section has a survey. As a result of this tapering in the region of the control element, the tumbler cooperating with the control element can be designed with greater freedom of design, thereby creating space for additional interrogation elements in the rotary locking cylinder, in particular in the keyway. With the rejuvenation so more elements in the rotary lock cylinder, in particular in the key channel, can be queried.

According to the invention, the tapered portion is spaced apart from the key tip between the key tip and key shank. In this embodiment, the key shank between the key tip and the tapered portion has a protrusion. This survey is advantageous because an additional query element can be created, as will be explained below. The elevation preferably has the same cross section as the key shank and is part of the key shank. In another embodiment, at least two tapered portions are disposed with one of the tapered portions in the key tip area and another tapered portion spaced from the key tip or with the at least two tapered portions spaced from the key tip.

The control element preferably projects out of the key shank so that the control surface lies at a distance from the outside of the tapered cross section. By protruding the control surface has the advantage that the contact with the additional tumbler forces a second, preferably movable, query.

Particularly preferably, the control surface is in the starting position in a plane which is defined by the outside of the key shank in the region of the control recesses. Alternatively, the control surface lies in a region between the outside of the tapered cross-section and the said plane.

Alternatively, the control surface is flush with the outside of the tapered cross-section, thereby improving the compactness of the key.

Said control element preferably comprises a bolt and spring element arranged in a bore in the key, in particular a compression spring, which spring element acts on the bolt with a force which pushes the control outward from the key shaft. The bolt has the said control surface. Due to the spring force to the outside it is possible, one with the control cooperating tumbler to the outside.

Particularly preferably, the control on two bolts, which extend along a common axis and are acted upon by the same spring element, wherein the first bolt protrudes beyond a first surface on the key shaft or flush to this surface and the second bolt on a second surface on Key shaft protrudes or is flush to this surface. The two surfaces are opposite with respect to the longitudinal axis and in particular provide the narrow side of the key.

In an alternative embodiment, the control element has only one bolt, which is arranged on one side of the key.

The key may thus have the shape of a reversible key or a non-reversible key, wherein the control is equally applicable.

Preferably, the bolt has a cylindrical, in particular circular, cross-section. As a result, the bolt can be optimally guided in the hole in the key.

The bore may be formed as a stepped bore or hole or through hole. The bolt may be held by a sleeve pressed into the bore with a passage opening through which the bolt extends.

Preferably, the bolt is provided in the region of the control surface with a control edge, which control edge extends at an angle to the longitudinal axis. The control edge is preferably a chamfering around the bolt.

Particularly preferably, the elevation extends transversely to the longitudinal direction of the key shank maximum on the maximum extent of the key shank. The extent of the survey may be variable, so that it is queriable.

Particularly preferably, the key shank has a first slope and a second slope, wherein the first slope increases to the elevation and wherein the second slope extends to the tapered region. Depending on the location of the taper, the first bevel is part of the key tip.

Preferably, exactly one control element, in particular per taper, is arranged. Alternatively, it is also possible to arrange a plurality of control elements which lie offset from one another along the key shank.

Accordingly, a rotary-lock cylinder comprises a stator, a rotor rotatably mounted in the stator with a key channel, and at least one tumbler cooperating with the control element. The tumbler comprises a stator pin mounted in the stator and a rotor pin mounted in the rotor, wherein the rotor pin and stator pin can be arranged by the control from a locked position into a release position.

Preferably, the rotor pin projects in the blocking position partially into the keyway. As a result of this partial engagement of the rotor pin, there arises in particular an advantage that the rotor pin can cooperate with the tapered region when the key is inserted. A first query would be conceivable.

Rotor pin and stator pin are preferably radially outwardly movable from the locking position in the release position. The tumbler, which cooperates with the control is thus classified from the key channel to the outside. From the release position, rotor pin and stator pin are movable radially inwards. Preferably, the stator pin protrudes into the rotor in the locked position from the stator and is then displaced into the stator during the movement from the locked position into the release position. The movement radially outward takes place, in particular, in a radial plane which runs centrally through the key channel or through the axis of rotation of the rotor.

The stator pin in the stator is preferably acted upon by a spring force with a spring force, wherein the spring force presses the stator pin and the rotor pin in the direction of the keyway. By the stator spring, the tumbler, which is classified by the control, always held in the locked position, unless the authorized key is inserted into the keyway.

Stator pin and rotor pin are mounted in a corresponding stator bore and rotor bore.

Particularly preferably, the spring force of the spring element of the control element mounted in the key is greater than the spring force of the stator, so that the control element radially outwardly moves the stator pin and the rotor pin with respect to the key channel, when the control comes into contact with the rotor pin. The spring element in the key thus acts against the spring element in the rotary lock cylinder.

In a further development of the invention, a further tumbler is arranged in addition to the tumbler, which cooperates with the control and arranged, which cooperates with the outside of the tapered region and is movable from a locking position radially outward into a release position.

Preferably, the further tumbler comprises a stator sleeve movably mounted in the stator and a rotor sleeve movably mounted in the rotor and a stator sleeve spring acting on the stator sleeve. The Statorhülsenfeder acts on the stator sleeve and the rotor sleeve with a spring force in the direction of the keyway. Furthermore, the rotor sleeve protrudes into the keyway with an end face and can be moved or arranged via this end face through the outside of the tapered region from the blocking position into the release position.

Alternatively or additionally, the tapered region may also cooperate with a tumbler comprising a rotor pin, a stator pin and a stator spring.

The stator sleeve or the rotor sleeve as well as the stator pin and rotor pin are movably mounted in the rotor or stator. The stator sleeve or the rotor sleeve can be moved radially outwardly into a release position from a blocking position. In another embodiment, the stator sleeve or the rotor sleeve from a locking position radially outwardly on the release position and then radially inwardly movable into the release position. Stator sleeve and rotor sleeve as well as stator pin and rotor pin are mounted in a corresponding stator bore and rotor bore.

In a particularly preferred embodiment, the stator pin and the rotor pin are movably mounted in the stator sleeve or the rotor sleeve and can be moved radially outwardly into a release position from a blocking position. With this embodiment, a particularly compact structure can be achieved.

If the key has the said elevation or the tapered area arranged at a distance from the key tip, the key can have the tumbler and / or work together with the additional tumbler. The survey preferably works together with the stator pin or the rotor pin of the tumbler and / or with the stator sleeve or rotor sleeve of the additional tumbler. When inserting the key into the key channel, the pin pair and / or the pair of sleeves can be moved radially outward beyond the release position via the elevation and then moved back into the release position from the latter via the elevation. It is thus essentially a combined arrangement movement radially outward and then radially inward.

Particularly preferably, the depth of the stator bore, in which the stator pin or stator sleeve are mounted, is greater than the length of the stator pin or the stator sleeve. By choosing suitable ratios between the depth of the stator bore and the length of the stator pin and stator sleeve and the extent of the projection on the key shank, another query can be provided. For example, if the survey is too high, so the stator is on the stator outer sleeve and the key can not be inserted. This variation results in a multiplication of the permutations.

Further embodiments are given in the dependent claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1

eine Schnittdarstellung durch einen Drehschliesszylinder gemäss einer ersten nicht zur Erfindung gehörenden Ausführungsform und einen Schlüssel gemäss einer ersten nicht zur Erfindung gehörenden Ausführungsform durch die Längsachse;

Fig. 2

eine Schnittdarstellung der Ausführungsformen nach Figur 1 rechtwinklig zur Längsachse;

Fig. 3

die Schnittdarstellung gemäss der Figur 1 mit dem Schlüssel an einer anderen Position;

Fig. 4

die Schnittdarstellung gemäss der Figur 1 mit dem Schlüssel an einer anderen Position;

Fig. 5

die Schnittdarstellung gemäss der Figur 1 mit dem Schlüssel in der eingeschobenen Lage;

Fig. 6

eine Schnittdarstellung der Figur 5 rechtwinklig zur Längsachse;

Fig. 7

eine Schnittdarstellung durch einen Drehschliesszylinder gemäss einer zweiten Ausführungsform und einen Schlüssel gemäss der ersten nicht zur Erfindung gehörenden Ausführungsform durch die Längsachse;

Fig. 8

eine Schnittdarstellung der Ausführungsformen nach Figur 7 rechtwinklig zur Längsachse;

Fig. 9

die Schnittdarstellung gemäss der Figur 7 mit dem Schlüssel an einer anderen Position;

Fig. 10

die Schnittdarstellung gemäss der Figur 7 mit dem Schlüssel an einer anderen Position;

Fig. 11

die Schnittdarstellung gemäss der Figur 7 mit dem Schlüssel in der eingeschobenen Lage;

Fig. 12

eine Schnittdarstellung der Figur 11 rechtwinklig zur Längsachse;

Fig. 13

eine Schnittdarstellung durch einen Drehschliesszylinder gemäss einer erfindungsgemässen Ausführungsform mit dazugehörigem erfindungsgemässen Schlüssel;

Fig. 14

die Schnittdarstellung gemäss der Figur 13 mit dem Schlüssel an einer anderen Position;

Fig. 15

die Schnittdarstellung gemäss der Figur 13 mit dem Schlüssel in der eingeschobenen Lage; und

Fig. 16

eine Schnittdarstellung der Figur 15 rechtwinklig zur Längsachse.

Preferred embodiments of the invention will be described below with reference to the drawings, which are given by way of illustration only and are not to be interpreted as limiting. In the drawings show:

Fig. 1

a sectional view through a rotary lock cylinder according to a first embodiment not belonging to the invention and a key according to a first non-invention embodiment by the longitudinal axis;

Fig. 2

a sectional view of the embodiments according to FIG. 1 perpendicular to the longitudinal axis;

Fig. 3

the sectional view according to the FIG. 1 with the key in a different position;

Fig. 4

the sectional view according to the FIG. 1 with the key at one another position;

Fig. 5

the sectional view according to the FIG. 1 with the key in the inserted position;

Fig. 6

a sectional view of FIG. 5 perpendicular to the longitudinal axis;

Fig. 7

a sectional view through a rotary lock cylinder according to a second embodiment and a key according to the first non-invention embodiment by the longitudinal axis;

Fig. 8

a sectional view of the embodiments according to FIG. 7 perpendicular to the longitudinal axis;

Fig. 9

the sectional view according to the FIG. 7 with the key in a different position;

Fig. 10

the sectional view according to the FIG. 7 with the key in a different position;

Fig. 11

the sectional view according to the FIG. 7 with the key in the inserted position;

Fig. 12

a sectional view of FIG. 11 perpendicular to the longitudinal axis;

Fig. 13

a sectional view through a rotary lock cylinder according to an inventive embodiment with associated inventive key;

Fig. 14

the sectional view according to the FIG. 13 with the key in a different position;

Fig. 15

the sectional view according to the FIG. 13 with the key in the inserted position; and

Fig. 16

a sectional view of FIG. 15 perpendicular to the longitudinal axis.

DESCRIPTION OF PREFERRED EMBODIMENTS

In the FIG. 1 a sectional view is shown by a rotary lock cylinder 2 with a key 1 according to an embodiment not belonging to the invention. The key 1 is here partially inserted into a key channel 23 of the rotary lock cylinder 2.

The key 1 comprises a key grip 3 and a key shaft 4 adjoining the key grip 3, which extends along a longitudinal axis L or longitudinal direction. The user can use the key 1 on the key handle 3, which Here is only partially shown, take and thus exert a rotary motion on the key 1. The key shank 4 serves for the arrangement of different tumblers of the rotary lock cylinder 2.

On its outside 5, the key shank 4 comprises control recesses 10, which serve for the arrangement of the tumblers on the rotary-lock cylinder 2. These can be conventional control bores that work together with conventional tumblers.

The outer side 5 is formed by two substantially parallel mutually parallel narrow surfaces 29 and two narrow surfaces 29 connecting the wide surfaces 30.

Furthermore, the key shank 4 comprises at least one control element 6 movably arranged in the key shank 4. The control element 6 cooperates with a tumbler 7 of the rotary-lock cylinder 2. The cooperation takes place via a control surface 8, which is arranged on the control element 6 or is part of the control element 6. With this control surface 8, the control 6 comes into contact with the tumbler 7 and arranges it according to the description below for the rotary-lock cylinder.

The key shank 4 is formed in the region of the control element 6 with a tapered cross-section 9. The tapered cross section 9 is tapered with respect to the cross section 11 with the control recesses 10. Under the expression tapered is a reduced cross section, ie a cross section with a smaller cross-sectional area, understood. Here, the key shank has a smaller height in the tapered cross section 9 than in the cross section 11. The control element 6 is thus arranged in the region of the tapered cross section 9.

In the present embodiment, the tapered cross-section 9 is formed so as to taper the key shank 4 uniformly on both sides with respect to the longitudinal axis L. The distance in the transverse direction Q to the longitudinal axis L to the narrow surface 29 of the key shank is substantially constant on both sides of the key shank 4 over the entire length of the key shank 4. The Outer shape of the key 1, in particular of the key shank 4, is preferably formed symmetrically with respect to the longitudinal axis L.

The transition between the tapered cross-section 9 and the cross-section with the control recesses 10 is preferably provided over an inclined surface 35 extending to the longitudinal axis.

By the tapered cross-section 9, the height of the key shank 4 between the two narrow surfaces 29 over the length of the key shank 4 is variable.

The width of the key shank 4 between the two wide surfaces 30 is preferably constant over the entire length of the key shank 4.

The control element 6 projects out of the key shank 4, so that the control surface 8 lies at a distance from the outside 5 of the tapered cross section 9. Here, the control surface 8 is spaced from the narrow surface 29. Particularly preferably, the control surface 8 is in the starting position in a plane which is defined by the outer side 5 of the key shank 4 in the region of the control recesses 10. The control surface 8 is thus particularly preferably flush with the outer side 5 of the key shank 4 outside the tapered region 9. The control surface 8 can also lie in a region between the outer side 5 of the tapered cross section 9 and the said plane.

In an alternative embodiment, the control surface 8 is flush with the outer surface 5 and the surface 29 of the tapered cross section. 9

The control element 6 here is a bolt 13 arranged in a bore 12 in the key 1 with a spring element 14, which acts on the bolt 13 with a force, so that the bolt 13, as seen from the key shank 4, is pressed outward. If the bolt 13 is pressed into the key shank 4, the spring force of the spring element 14 counteracts. The bolt 13 is therefore pressed transversely to the longitudinal axis L or in the transverse direction Q from the interior of the key shank 4 to the outside. The force is provided by the spring element 14, which here has the shape of a compression spring.

The control element 6 particularly preferably has two bolts 13, which extend along a common axis A and are movable along this axis A. The two bolts 13 are acted upon by the same spring element 14. The spring element 14 thus ensures that the two bolts 13 are pressed in the transverse direction Q seen from the key shank 4 forth to the outside. The first bolt 13 projects beyond a first surface 31 on the key shaft and the second bolt protrudes beyond a second surface 32 on the key shaft 4. The said surfaces are part of the tapered region 9 and lie opposite each other with respect to the longitudinal axis L. The surfaces 31, 32 provide in particular the narrow surface 29, the narrow side of the key 1 ready.

The bolt 13 preferably has a cylindrical, in particular a circular cross-section. The cross section is to be understood here perpendicular to the axis A.

Strinseitig, the bolt 13, the said control surface 8. Particularly preferably, the bolt 13 in the region of the control surface 8, a control edge 15, which extends at an angle to the longitudinal axis L. The control edge 15, which is thus formed inclined to the longitudinal axis L, thereby has the advantage that the insertion of the key 1 in the keyway 23 and the cooperation with the projecting into the keyway 23 controls is improved. In addition, the bolt 13 can be actuated via the control edge 15, in particular by elements which protrude into the keyway 23.

Opposite the front side, the bolt 13 has a flange 39 here. With the flange 39, the bolt abuts against a step 40 of a stepped bore or on a sleeve 41, which is pressed into the hole in the key.

The tapered region 9 is arranged here in the end region of the key shank 4 in the region of the key tip 16. The tapered region 9 thus essentially forms the key tip 16 with respect to the key grip 3. The key shaft 4 thus ends with the key tip 16. In an alternative embodiment, it would also be conceivable to arrange the tapered region at other locations on the key shaft 4.

As a result, the rotary lock cylinder 2 and the cooperation with the key 1 described above will now be explained in more detail. The FIGS. 1 to 6 show a first not belonging to the invention embodiment of the rotary lock cylinder and the FIGS. 7 to 12 show a second embodiment of the rotary lock cylinder. Both embodiments can be operated with the preferred key 1 described above.

The rotary lock cylinder 2 comprises a stator 17, a rotatably mounted in the stator 17 rotor 18 with a keyway 23 and at least one cooperating with the control arranged in the key 1 tumbler 7. The rotor 18 acts in a known manner on a latch bolt a door.

Further, the rotary lock cylinder 2 preferably comprises at least one cooperating with the control recesses 10 tumbler, which is not shown here for clarity. These tumblers are classified by the at least one control recess 10.

The tumbler 7, which cooperates with the control element 6 in the key shank 4, comprises a stator pin 20 mounted in the stator 17 and a rotor pin 21 mounted in the rotor 18. The stator pin 20 and the rotor pin 21 move along a common axis B when the rotary lock cylinder 2 is in the locked position. The stator pin 20 is in a stator bore 33 and the rotor pin 21 is mounted in a rotor bore 34. The pins 20, 21 are movably mounted in the corresponding bore 33, 34.

Rotor pin 21 and stator 20 are by the control 6 of a locking position, as in FIG. 1 shown in a release position, as in the FIG. 5 shown, can be ordered. In the blocking position, the rotor pin 21 protrudes partially into the keyway 23 and the stator pin 20 protrudes partially into the rotor bore 34, whereby the relative movement between the stator 17 and the rotor 18 is made impossible or blocked. Consequently, the control element 6 thus cooperates with the tumbler 7 in such a way that it can be arranged from the blocking position into the release position when the key is authorized.

In the Figures 1 and 2 the tumbler 7 is shown in the locked position. The movement between the rotor 18 and the stator 17 is blocked by the stator pin 20, which is located in the region of the shear line 35 between the rotor 18 and the stator 17. The rotor pin 21 is located completely inside the rotor 18. Von der FIGS. 1 and 2 can also be recognized that stator 20 and rotor pin 21 are pressed with a stator spring 22 inwardly to the keyway 23. By the stator spring 22, the package stator pin 20 and rotor pin 21, so the tumbler 7, held in the locked position.

When inserting the key of the key shank 4 comes with the key tip 16 with the entering into the keyway 23 part of the rotor pin 21 in contact. The rotor pin 21 is thereby pressed by the further insertion of the key in the direction of the stator 17, so seen from the keyway 23 to the outside. For this purpose, the key tip 16 has a chamfer 36, which comes into contact with the rotor pin 21. In the FIG. 1 the position is shown in which the chamfer 36 just comes into contact with the end face 37 of the rotor pin 21. The same situation is in the section perpendicular to the longitudinal axis L in the FIG. 2 shown.

In the FIG. 3 the further insertion of the key 1 is shown in the keyway 23 of the rotary lock cylinder 2 along the insertion direction E. In this case, the key 1 is advanced so far that the rotor pin 21 comes to rest in the region of the tapered cross section 9. The rotor pin 21 and thus also the stator pin 20 are thereby moved against the action spring 22 to the outside. This movement is represented by the radial movement S. Upon further insertion, as in the FIG. 4 As shown, the distance between the tumbler 7 and the effective range of the control element 6 in the key 1 is reduced.

In the FIGS. 5 and 6 the key is shown in the fully inserted position. The axes A of the control element 6 and B of the tumbler 7 are collinear with each other. Due to the action of the spring element 14 of the control element 6 in the key 1, the rotor pin 21 and thus also the stator pin 20 is pressed further outwards. The control surface 8 of the control element 6 in the key 1 is in contact with the end face 37 of the rotor pin 21. Due to the dimensioning of the control element 6 and tumbler 7, the rotor pin 21 together with the stator 20th moved by the action of the spring element 14 of the control element 6 to closing height. The contact point between the stator pin 20 and rotor pin 21 comes to lie on the shear line 35. As a result, the rotor 18 can be pivoted to the stator 17.

The spring force of the spring element 14 in the key 1 is greater than the spring force of the stator spring 22, so that the control element 6 moves the stator pin 20 and the rotor pin 21 radially outward relative to the key channel 23. Consequently, the tumbler 7, so stator pin 20 and rotor pin 21 is arranged by the spring element 14 in the key 1 with respect to the keyway 23 seen to the outside. In other words, it can also be said that the tumbler 7 cooperating with the control element 6 is arranged radially outwards as viewed from the keyway 23. The movement is provided by the spring element 14 of the control element 6.

In the not belonging to the invention FIGS. 1 to 6 can also be recognized that the rotor pin 21 is movably mounted in a guide sleeve 24. The guide sleeve 24 is optional. The guide sleeve 24 is mounted in the rotor bore 34, in particular pressed, and projects into the keyway 23, wherein the cross section is reduced in the corresponding area. The guide sleeve 24 cooperates with the tapered region 9. Consequently, the key 1 can only be fully inserted into the keyway if the key 1 has the tapered cross section 9, the tapered cross section 9 cooperating with the guide sleeve 24 which narrows the keyway in the region of the presence of the guide sleeve 24. Particularly preferably, the measure of the loading of the guide sleeve 24 corresponds to the extent of the taper of the tapered region 31, 32. Thus, with the guide sleeve 24, an additional security feature can be created.

The guide sleeve 24 is fixed to the rotor 18 in connection. Particularly preferably, the guide sleeve 24 is pressed into the rotor.

Of the FIG. 6 can be further recognized that the bolt 13 protrudes into the guide sleeve 24 in a particularly preferred embodiment.

Stator pin 20 and rotor pin 21 are preferably mushroom-shaped.

In the FIGS. 7 to 12 a second embodiment of the inventive rotary lock cylinder is shown. The rotary-lock cylinder according to the second embodiment can be operated with the same key 1, as already described above in connection with the key 1 as such or in connection with the first embodiment. Next, the same parts are provided with the same reference numerals.

The second embodiment of the rotary lock cylinder 2 comprises in addition to the tumbler 7, which cooperates with the control element 6, a further tumbler 19, which cooperates with the outside 31, 32 of the tapered cross section 9. Consequently, the tapered region 9 thus likewise serves for the arrangement of a corresponding tumbler 19 associated with the tapered region 9.

The additional tumbler 19 is classified by the tapered portion 9. The classification of the additional tumbler 19 takes place radially outward.

In this embodiment, a total of at least three different tumblers are classified. On the one hand, the tumblers cooperating with the control recess 10 are classified. Next, the cooperating with the control 6 tumbler 7 is arranged and also the cooperating with the tapered section 9 tumbler 19 is arranged, so that the rotor 18 can be pivoted to the stationary stator 17.

The additional tumbler 19 comprises a stator sleeve 25 which can be moved in the stator 17 and a rotor sleeve 26 movably mounted in the rotor 18, and a stator sleeve spring 27 which acts on the stator sleeve 25. Rotor sleeve 26 and stator sleeve 25 run collinearly along a common axis B in the locked position 25 is in a stator bore 33 and the rotor sleeve 26 is movably mounted in a rotor bore 34. The stator sleeve spring 27 acts on the stator sleeve 25 and the rotor sleeve 26 with a spring force in the direction of the key channel 23. The rotor sleeve 26 protrudes with an end face 28 into the keyway 23. About this end face 28, the rotor sleeve 26 and thus also the stator sleeve 25 through the outside 5 and the surfaces 29th of the tapered portion 9 from a locking position radially outward into a release position movable. The tapered region 9 cooperates with the end face 28.

In the present embodiment, the stator pin 20 and the rotor pin 21 are movably mounted in the stator sleeve 25 and the rotor sleeve 26, respectively. Stator pin 20 and rotor pin 21 can be arranged independently of the control of the stator sleeve 25 and the rotor sleeve 26. Thus, both stator pin 20 and rotor pin 21 and stator sleeve 25 and rotor sleeve 26 must be moved from the locked position into the release position, so that both tumblers 7, 19 are in the release position. If either the tumbler 7 with stator pin 20 and rotor pin 21 or the tumbler 19 with stator sleeve 25 and rotor sleeve 26 is not moved by the key 1 in the release position, that is classified, so a rotation of the rotor 18 in the stator 17 is impossible.

In an alternative embodiment, not shown in the figures, the additional tumbler 19 may also be formed analogous to the tumbler 7 with a rotor pin, a stator and a stator, in which case the additional tumbler 19 spaced from the tumbler 7 is located.

In the FIGS. 9 and 10 the insertion of not belonging to the invention key 1 is shown in the keyway 23 of the rotary lock cylinder 2 according to the second embodiment. The tumblers 7 and 19 are here still in locked position.

Is in the embodiments of the FIGS. 7 to 12 an unauthorized key inserted without the taper, the additional tumbler 19 is not classified correctly. On the one hand, the additional tumbler 19 may have the effect of a stop which opposes the key. On the other hand, in an embodiment not shown, the stator sleeve 25 may be formed shortened, so that rotor sleeve 26 and stator sleeve 25 are moved with their contact point on the shear line 35 addition. The rotor sleeve 26 then lies on the shear line 35 and thus blocks the relative movement between the rotor sleeve 26 and the stator sleeve 25. In other words, the rotor sleeve 26 is moved radially outward via the shear line 35.

The mobility radially outwards also has the advantage that the tapered portion 9 spaced from the key tip 16 can be arranged. As a result, the package rotor sleeve 26 and stator sleeve 25 is moved in a first step by the key shank 4 of normal width with the rotor sleeve 26 on the shear line 35 and then in a second step, when the tapered portion acts on the rotor sleeve 26, from the outside in radial direction moves to the shear line. The classification takes place in this embodiment radially from the outside. In other words, this means that the stator sleeve 25 or the rotor sleeve 26 can be moved radially outwardly beyond the release position and then radially inwardly into the release position from a blocking position.

In the FIGS. 11 and 12 is not belonging to the invention key 1 in the fully inserted state and the tumbler 7 and the tumbler 19 are in the release position. In these figures, it can be well recognized that the surface 31, 32 of the tapered region has moved the rotor sleeve 26 and the stator sleeve 25 to the height of the shear line 35. That is, the contact point between the stator and rotor sleeve is located on the shear line between the stator 17 and rotor 18. Further, the tumbler 7 has been classified according to the above description. The spring element 14 of the control element 6 has also arranged the stator pin 20 and the rotor pin 21, so that the contact point between the rotor pin 21 and the stator pin 20 is on the shear line 35. The rotor 18 can now be pivoted to the stationary stator 17.

In the FIGS. 13 to 16 a rotary lock cylinder 2 are shown with a key 1 according to an inventive embodiment. This inventive embodiment has over the first and the second embodiment of an additional security feature in the form of a formed on the key shank 4 survey 44. The rotary lock cylinder 2 is formed according to the second embodiment, which is why reference is made to the above description. Next, the same parts are provided with the same reference numerals.

The tapered cross-section 9 of the key shank 4 is placed in this embodiment spaced from the key tip 16 between the key tip 16 and the key handle 3. The key shank 4 in this case has along the longitudinal axis L, starting from the key tip 16 in the direction of the key grip 3, a first slope 42. This first slope 42 is substantially an inclined plane to the longitudinal axis L, which is formed so that it increases the key shank 4 with respect to the longitudinal axis L on both sides evenly and thereby increases up to a survey 44. The elevation 44 has a surface 45, which is preferably formed parallel to the longitudinal axis L, and which merges into a second slope 43. This second slope 43 leads the elevation 44 again in the form of an inclined surface to the longitudinal axis L back to a height of the first surface 31 and the second surface 32 of the tapered cross section 9. In other words, by the elevation 44 of the tapered cross section in the longitudinal direction L to Key tip 16 is limited.

In the area of the elevation 44, the height of the key shank 4 is variable. Preferably, the elevation 44 protrudes beyond the height of the first surface 31 and the second surface 32, wherein here the height is to be understood as meaning the distance along the transverse direction Q with respect to the longitudinal axis of the key shaft 4. The outer shape of the key 1 is also formed in this inventive embodiment with respect to the longitudinal axis L preferably symmetrical. However, it is also conceivable that the elevation 44 is formed only on one side of the key shank 4 or that further elevations 44 or tapered areas 9 are located on the key shank 4.

As a result, the rotary lock cylinder 2 and the cooperation with the key 1 described above will now be explained in more detail. In this case, the rotary lock cylinder corresponds to the second embodiment. However, it should be noted when using the rotary lock cylinder 2 according to the second embodiment that the additional tumbler 19 has a modified stator bore 33 whose length is greater than the length of the stator sleeve 25.

The FIG. 13 shows a sectional view through the rotary lock cylinder 2 with partially inserted into the keyway 23 key 1, wherein the elevation 44 and the tapered cross section in the region of the key tip 16 are. In this locking position, the chamfer 36 of the key shank 4 comes into contact with the end face 28 of the rotor sleeve 26 projecting into the keyway 23.

In the FIG. 14 the further insertion of the key 1 in the keyway 23 of the Rotary lock cylinder 2 along the direction of insertion E shown. In this case, the key 1 is advanced so far that the end face 28 comes to lie on the surface 45 of the survey 44. Since the length of the stator bore 33 is greater than the length of the stator sleeve 25, located at this position, the end face 28 opposite side of the stator sleeve 25 flush with the outside of the rotary lock cylinder 2. A stator sleeve whose length is not smaller than that of the stator bore, would Therefore, allow insertion of the key maximum up to this position.

In the FIGS. 15 and 16 is the key 1 in the fully inserted state and the tumbler 7 and the additional tumbler 19 are in the release position. Analogous to the figures of the first and second embodiments, it can also be clearly recognized in these figures that the surface 31, 32 of the tapered region has moved the rotor sleeve 26 and the stator sleeve 25 to the height of the shear line 35. That is, the contact point between the stator and rotor sleeve is also in the inventive embodiment on the shear line between the stator 17 and rotor 18. Similarly, the tumbler 7 has been classified according to the above description. The spring element 14 of the control element 6 has also arranged the stator pin 20 and the rotor pin 21, so that the contact point between the rotor pin 21 and the stator pin 20 is on the shear line 35. The rotor 18 can now be pivoted to the stationary stator 17. The tumbler 19 serves as active and high-quality manipulation protection in the cylinder.

LIST OF REFERENCE NUMBERS

1 bowl 31 first surface of the tapered area 2 Rotary locking cylinder 3 key grip 32 second surface of the tapered area 4 key shaft 5 outside 33 stator 6 control 34 rotor bore 7 tumbler 35 shear line 8th control surface 36 bevel 9 tapered cross-section 37 front 10 control recess 38 inclined surface 11 cross-section 39 flange 12 drilling 40 step 13 bolt 41 shell 14 spring element 42 first slope 15 control edge 43 second slope 16 key tip 44 survey 17 stator 45 surface 18 rotor 46 Stator outer sleeve 19 tumbler 20 Statorstift L longitudinal axis 21 rotor pin Q transversely 22 Statorfeder A axis 23 keyway B axis 24 guide sleeve e insertion direction 25 stator S radial movement 26 rotor sleeve 27 Statorhülsenfeder 28 front 29 narrow surface 30 wide surface

Claims (14)

1. A key (1) for a rotary cylinder lock (2), comprising
   a key grip (3) and
   a key shank (4) which adjoins the key grip (3) and extends along a longitudinal axis (L), wherein the key shank (4) comprises, on the outer side (5) thereof, control recesses (10), in particular control bores, for positioning tumblers on the rotary cylinder lock (2), and at least one control element (6) arranged movably in the key shank (4), which control element (6) has a control surface (8) cooperating with a tumbler (7) of the rotary cylinder lock (2), wherein the key shank (4), in the region of the control element (6), has a tapered cross section (9) which is tapered in relation to the cross section (11) with the control recesses (10), characterized in that the tapered cross section (9) or a further tapered cross section (9) is arranged between the key tip (16) and the key grip (3) at a distance from the key tip (16), wherein the key shank (4) has an elevation (44) between the key tip (16) and the tapered cross section (9).
2. The key (1) as claimed in claim 1, characterized in that the control element (6) protrudes out of the key shank (4) such that the control surface (8) lies at a distance from the outer side (5) of the tapered cross section (9); or
   in that the control surface (8) lies flush with the outer side (5) of the tapered cross section (9).
3. The key (1) as claimed in claim 2, characterized in that, in the starting position, the control surface (8) lies in a plane which is defined by the outer side (5) of the key shank (4) in the region of the control recesses (10), or in that the control surface (8) lies in a region between the outer side (5) of the tapered cross section (9) and said plane.
4. The key (1) as claimed in one of the preceding claims, characterized in that the control element (6) comprises a bolt (13) arranged in a bore (12) in the key (1), and a spring element (14), in particular a compression spring, which spring element subjects the bolt (13) to a force which presses the control element (6) outward, as seen from the key shank (4), wherein the bolt (13) has said control surface (8) and/or
   in that the control element (6) has two bolts (13) which extend along a common axis (A) and are acted upon by the same spring element (14), wherein the first bolt (13) protrudes over a first surface (31) on the key shank (4) or is flush with said surface, and the second bolt (13) protrudes over a second surface (32) on the key shank (4) or is flush with said surface, which surfaces (31, 32) lie opposite each other with respect to the longitudinal axis (L) and in particular provide the narrow side of the key (1).
5. The key (1) as claimed in claim 4, characterized in that the bolt (13) has a cylindrical, in particular circular, cross section, and/or in that the bolt (13) is provided with a control edge (15) in the region of the control surface (8), which control edge (15) runs at an angle to the longitudinal axis (L).
6. The key (1) as claimed in one of the preceding claims, characterized in that the elevation (44) extends transversely with respect to the longitudinal direction (L) of the key shank (4) at maximum to the maximum extension of the key shank, and/or the key shank (4) has a first slope (42) and a second slope (43), wherein the first slope (42) rises to the elevation (44), and wherein the second slope (43) runs toward the tapered cross section (9).
7. A rotary cylinder lock (2) and key (1) as claimed in one of the preceding claims, characterized in that the rotary cylinder lock (2) comprises
   a stator (17),
   a rotor (18) mounted rotatably in the stator (17), with a key channel (23), and
   at least one tumbler (7) cooperating with the control element (6),
   wherein the tumbler (7) comprises a stator pin (20) mounted in the stator (17) and a rotor pin (21) mounted in the rotor (18), wherein rotor pin (21) and stator pin (20) are positionable from a blocking position to a release position by the control element (6), and wherein, in the blocking position, the rotor pin (21) preferably projects into the key channel (23).
8. The rotary cylinder lock (2) and key (1) as claimed in one of claims 4 and 7, characterized in that rotor pin (21) and stator pin (20) are movable radially outward from the blocking position into the release position; and/or
   in that the stator pin (20) in the stator (17) is subjected to a spring force by a stator spring (22), wherein the spring force presses the stator pin (20) and the rotor pin (21) in the direction of the key channel (23); and/or
   in that the spring force of the spring element (14) in the key (1) is greater than the spring force of the stator spring (22), such that the control element (6) moves the stator pin (20) and the rotor pin (21) radially outward with respect to the key channel (23) when the control element (6) comes into contact with the rotor pin (21).
9. The rotary cylinder lock (2) and key (1) as claimed in one of the preceding claims 7 to 8, characterized in that, in addition to the tumbler (7) which cooperates with the control element (6), a further tumbler (19) is provided, which cooperates with the outer side (31, 32) of the tapered cross section (9) and is movable radially outward from a blocking position into a release position.
10. The rotary cylinder lock (2) and key (1) as claimed in claim 9, characterized in that the further tumbler (19) comprises a stator sleeve (25) mounted movably in the stator (17) and a rotor sleeve (26) mounted movably in the rotor (18), and a stator sleeve spring (27) acting on the stator sleeve (25),
    wherein the stator sleeve spring (27) subjects the stator sleeve (25) and the rotor sleeve (26) to a spring force in the direction of the key channel (23), and
    wherein rotor sleeve (26) projects with an end side (28) into the key channel (23) and is movable via said end side (28) from the blocking position into the release position by the outer side (5) of the tapered cross section (9).
11. The rotary cylinder lock (2) and key (1) as claimed in claim 9 or 10, characterized in that the stator sleeve (25) and the rotor sleeve (26), respectively, are mounted movably, wherein the stator sleeve (25) and the rotor sleeve (26), respectively, are movable radially outward from a blocking position into a release position, or wherein the stator sleeve (25) and the rotor sleeve (26), respectively, are movable radially outward from a blocking position over the release position and subsequently radially inward into the release position.
12. The rotary cylinder lock (2) and key (1) as claimed in one of claims 9 to 11, characterized in that the stator pin (20) and the rotor pin (21) are mounted movably in the stator sleeve (25) and the rotor sleeve (26), respectively, and are movable radially outward from a blocking position into a release position.
13. The rotary cylinder lock (2) and key (1) as claimed in one of claims 7 to 12, characterized in that, when the key (1) is pushed into the key channel (23), the tumbler (7), in particular the stator pin (20) and rotor pin (21), respectively, and/or the further tumbler (19), in particular the stator sleeve (25) and rotor sleeve (26), respectively, are movable radially outward via the elevation (44) from a blocking position over the release position and are then movable from over the release position into the release position.
14. The rotary cylinder lock (2) and key (1) as claimed in claim 13, characterized in that the tumbler (7) or the further tumbler (19) has a stator bore (33) in which the stator pin (20) and/or the stator sleeve (25) is mounted movably, wherein the length of the stator bore (33) is greater than the length of the stator pin (20) and of the stator sleeve (25), respectively.

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