WO2015000966A1

WO2015000966A1 - Key and rotary lock cylinder

Info

Publication number: WO2015000966A1
Application number: PCT/EP2014/064078
Authority: WO
Inventors: Ernst Keller
Original assignee: Ernst Keller
Priority date: 2013-07-03
Filing date: 2014-07-02
Publication date: 2015-01-08
Also published as: WO2015000963A1

Abstract

The invention relates to a key (7) and a rotary lock cylinder for a security lock, wherein the rotary lock cylinder comprises a rotor (1), a stator (3), a plurality of tumblers, and an additional tumbler (15), and wherein the key (7) comprises control bores for arranging the plurality of tumblers and at least one control element (9, 10) arranged in the key shaft (11) of the key (7), which at least one control element has a control surface (9b, 10b) and interacts with the additional tumbler (15) of the rotor. The rotary lock cylinder, in particular the additional tumbler (15), comprises at least one coding element (41), and the key (7) comprises at least one coding track (43), which matches the coding element (41) and extends in an insertion direction.

Description

TITLE

Keys and locks

TECHNICAL AREA

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

STATE OF THE ART

Keys with a control arranged in the key shank have the advantage that they can hardly be copied unauthorized due to the control element arranged in the key shank and thus the locking devices equipped with such keys have a higher safety value. However, the previously known keys of this genus, also called "mechanical key", however, are still subject to various disadvantages, so that despite the very high copy security, these keys, especially as a reversible key, have not found widespread use. Thus, a key of this type is known from DE-A-35 17 660, which is insertable into the key channel of a rotary lock cylinder and having in its flat key shank a movable device with which an additional tumbler in the release state is movable. The movable means of the key consists of a projecting pin, which is slidably held in a blind bore of the key. In the blind bore, a spring is further arranged, which pushes the pin outwards, the falling out of the pin is prevented by gradations in the blind bore of the key shank and the pin. Projecting pins are generally detrimental to a key since the key easily hangs on the pin. EP 0 621 384 overcomes the disadvantages of DE 35 17 660 with a technically very convincing and mature solution. The technical solution of EP 0 621 384 meets the highest demands with regard to copy security and manufacturability.

However, both DE 35 17 660 and EP 0 621 384 have the disadvantage that the number of locking combinations or permutations is essentially dependent on the design of the tumblers between the rotor and stator and the corresponding holes in the key. Although EP 0 621 384 offers clear and convincing advantages in terms of copy security, the number of closing combinations can not be increased with the technical teaching of EP 0 621 384.

PRESENTATION OF THE INVENTION

The invention has for its object to provide a key and rotary cylinder of the type mentioned, wherein the number of Schliesskombinationen or Schliesspermutation and the copy security of the key is significantly increased. The object is solved by the invention according to claim 1.

The rotary lock cylinder for a safety lock comprises a rotor, a stator, several tumblers and an additional guard locking. The key has control bores for locating the plurality of tumblers and at least one control disposed in the key shank of the key having a control surface and cooperating with the additional tumbler of the rotor. The rotary locking cylinder, in particular the additional tumbler comprises at least one coding element and the key comprises at least one matching coding element and extending in the insertion direction coding track. Coding element and coding path work together.

With the arrangement of a further and additional coding element and the matching coding track can in a simple and elegant way, the permutation the closure possibilities are increased many times over. In addition, the copy security of the key can be increased.

Next, the security against manipulation is increased, because three different elements, namely the usual tumblers, the tumbler with the control in the key and further still the coding element with the coding track, must be consistent to operate the lock.

In a further development, the rotary locking cylinder comprises a rotor, a stator and a plurality of tumblers. The key according to the development comprises at least one arranged in the key shank of the key control element which has a control surface and cooperates with an additional tumbler of the rotor, wherein the control element against the restoring force of a restoring element is radially displaceable, wherein the stator has a receiving bore on the inside, in which the additional tumbler against the restoring force is radially inwardly movable. Further, the key includes controls, such as stepped holes, for operating the other tumblers. The additional tumbler has a conical control surface and a contact surface arranged opposite the control surface. With a corresponding rotational position of the rotor, the control is held by the said restoring force in a position in which its control surface is in contact with the contact surface of the additional tumbler. The rotary-lock cylinder, in particular the additional tumbler, comprise at least one coding element and the key comprises at least one coding track which fits the coding element and extends in the direction of insertion. The key can be inserted into a keyway extending along the rotor axis, the coding element preferably protruding into the keyway. The keyway is located in the rotor.

In one embodiment of the invention, the additional tumbler is movably held in an opening in the coding element and is preferably flush with an end face of the coding element. As a result, a particularly simple structure can be provided. Preferably, the coding element with respect to the key channel is held stationary in the rotor. The coding element is preferably pressed into a bore running perpendicular to the rotor axis in the rotor. In a particularly preferred embodiment, the coding element is pressed into a bush, which in turn is pressed in a direction perpendicular to the rotor axis bore. Alternatively, the coding element may also be part of this bush, which is pressed into said bore.

Preferably, the additional tumbler is a bolt which is slidably guided in a bush or a bore in the rotor.

Preferably, the coding portion of the coding element has at least one coding recess, wherein particularly preferably at least two coding grooves are present, which have the same or a different cross section when viewed in the plugging direction.

Preferably, the receiving bore in the stator is conical.

Particularly preferably, the receiving bore is arranged in a radially displaceable counterbolt in the stator, wherein the conical control surface of the additional tumbler cooperates with the receiving bore of the counterbolt in order to arrange this radially. Thus, the mating pin must also be arranged to rotate the rotor in the stator. In a further development of the key, the coding path is arranged symmetrically with respect to a plane passing through a central axis in the key shank or through the rotor axis on the key shank. The key can thus be used as a reversible key. In a particularly preferred embodiment of the invention, the coding path is arranged in a groove extending in the key shank.

The groove includes two opposing ones provided by the key shank Side walls which extend in the direction of the rotor axis, wherein both side walls are provided to the interior of the groove with said coding track.

More preferably, the coding path is provided in a shaft member communicating with the key shaft. The shaft member may be provided, for example, as a key cap, which is connected to the key tip.

Preferably, the coding path is arranged in the key tip and only partially extends in the region of the key tip over the key shaft. In other words, the coding path does not extend over the entire key shaft. In an alternative embodiment, however, it is conceivable that the coding path extends over the entire key shaft. In one development of the invention, the coding path is arranged on the outside of the key shank, in particular on the narrow side and / or the side, wherein the coding element comprises a groove with the coding sections, which cooperates with arranged on the outside of the key shank encoding track. Preferably, the coding element is arranged centrally or symmetrically to the key channel. The coding element is thus located centrally between two side walls of the key channel. Particularly preferably, the width of the coding element is smaller than the width of the key channel. Particularly preferably, the coding element projects from at least one side into the key channel. For example, the coding element projects from above and / or below into the key channel.

Preferably, the coding element is designed as a pin.

Particularly preferably, the coding element is inserted in an opening, wherein the opening has a cross section which allows insertion of the coding element in a predefined orientation to the key channel, and that this opening is preferably provided by an inserted into a hole in the rotor, in particular pressed, sleeve.

Further embodiments are given in the dependent claims.

BRIEF DESCRIPTION OF THE DRAWINGS

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 construed as limiting. In the drawings show:

1 shows a sectional view through a rotary cylinder according to the invention with inserted key;

FIG. 2 shows a sectional view according to FIG. 1 with the rotor pivoted through 45 °; FIG.

3 shows a sectional view according to FIG. 1 with the rotor pivoted by 90 °;

FIG. 4 shows a schematic side view of the key according to FIG. 1 with indicated rotary locking cylinder; FIG.

Fig. 5a-5d different views of the key according to the figure 1 with a

Embodiment of a coding element;

FIGS. 6a-6c show various embodiments of the key according to FIG. 1;

FIGS. 7a-7f show various embodiments of a coding element;

Fig. 8 shows a further embodiment of a coding element with a

Key with coded narrow side;

9 shows a further embodiment of an encoding element with a

Key with coded broadside;

Fig. 10 a / b shows a preferred embodiment of the key tip;

Fig. 11 a / b, a further embodiment of the Drchschl iesszylinders with a

Query element, and

Fig. 12 a-c further embodiments.

DESCRIPTION OF PREFERRED EMBODIMENTS FIG. 1 shows a first embodiment of a device according to the invention Rotary lock cylinder with a key 7 shown.

The rotary lock cylinder essentially comprises a rotor 1 with a key channel 2 and a stator 3, in which the rotor 1 is rotatably mounted about the rotor axis. With a key 7 introduced into a keyway 2 of the rotor 1, not shown here, conventional pin tumblers are arranged, wherein the rotor 1 can be rotated to actuate a lock not shown here. To classify these conventional tumblers, the key 7 corresponding holes or stepped holes. However, the key 7 can also be a non-reversible key, such as a so-called spiked key, in which case the rotary lock cylinder is of course adapted accordingly.

In the figure 1, the stator 3 is surrounded with a conventional steel sleeve 4. In the stator 3, the rotor 1 is rotatably mounted. Rotor 1 and stator 3 are shown here only by way of example and may be formed differently in other embodiments.

In addition to the tumblers not shown here, the rotary lock cylinder has an additional tumbler 15 in the rotor 1. Next, the stator 3 directed on the inside against the rotor 1 a plurality of counter-bolts 5, 16, 17. These counterbolt 5, 16, 17 each comprise a receiving bore 22, 23, 24, in which the additional tumbler 15 engages. The additional tumbler 15 has a conical control surface 15a and a contact surface 40 arranged opposite the control surface 15a. The control surface 15a is in contact with the receiving bores 22, 23, 24 when the additional tumbler 15 is in the corresponding rotational position.

The key 7 includes, as shown in Figure 1, at least one arranged in the key shank 11 of the key 7 control 9. In the figure 4 is an execution form with two controls 9, 10 shown. The control element 9, 10 has a control surface 9b, 10b, which cooperates with the additional tumbler 15 of the rotor 1. The control surfaces 9b, 10b are in contact with the contact surface 40 of the additional tumbler 15 when the key is inserted. The control element 9, 10 stands here with a likewise arranged in the key shank 11 return element 12, here with a Compression spring, in conjunction and is radially displaceable against the restoring force of the return element 12.

Furthermore, the rotary locking cylinder, in particular the additional tumbler 15, comprises at least one coding element 41 with at least one coding section 42 and the key 7 comprises at least one coding path 43 matching the coding element 41 and extending in the insertion direction. The coding element 41 protrudes into the keyway 2. In order to be able to introduce the key 7 into the key channel 2, the coding path 43 on the key must match the coding element 41 on the additional tumbler 15. If the key 7 is not suitable, it is not possible to completely insert it into the key channel 2, because the coding element 41 is not formed to match the coding path 43. Thus, the tumblers can not be operated. The controls 9 and 10 can be moved in the fully inserted in the keyway 2 key 7 against the retroactive force of the compression spring 12 limited inwardly into the bore 29 in the key 7. The purpose of this mobility results from the following functional description with reference to Figures 1 to 3. In order to operate the rotary lock cylinder, the key shank 11 of the key 7 is inserted as usual in the keyway 2. During the insertion of the key 7 this comes with its coding path 43 in contact with the arranged in the rotary lock coding element 41, which protrudes into key channel 2. If the key is authorized, the coding path 43 and the coding element 41 coincide and the key 7 can be inserted completely into the key channel 2. Here, the usual tumblers not shown here are classified by the usual holes of the key. In other words, it can be said that for the rotation of the rotor 1 not only the usual tumblers with the key 7 but also the coding element 41 with the coding track 43 must match.

In the arrangement shown in Figure 1 also the additional tumbler 15 is positioned by the control element 9 of the key 7, in particular raised, so that it engages in the receiving bore 24 of the counter bolt 5. If a key 7 provided for the rotary-lock cylinder is used, a counter-bolt 5 is here arranged by the tumbler 15 with respect to the rotor 1, as shown in FIG. The mating pin 5 need not necessarily be provided, the receiving bore 24 could also be located in the stator 3 itself. The counter bolt 5 brings additional security. Thus, the tumbler 15 can classify the mating pin 5, the compression spring 12 is formed in the key 7 stronger than the compression spring 30, which presses the mating pin 5 radially inward. As is customary, the mating pin 5 has a conical bore 24, which is formed corresponding to the conical control surface 15a of the tumbler 15.

Since now the tumbler 15 and the control member 9 are movable inwardly against the retroactive force of the compression spring 12, despite the engagement of the tumbler 15 in the receiving bore 24 of the rotor 1 can be rotated with the key 7, for example in Fig. 2 in the counterclockwise direction. This is of course only possible if the receiving bore 24 and corresponding to the surface 15a are conical. When rotating the rotor 1, the additional tumbler 15 moves radially inward until a flat end face 15b has reached the shear line 27 between the rotor 1 and stator 3. In FIG. 1, it can furthermore be readily recognized that the coding element 41 is centered, ie symmetrical, in the keyway 11 with respect to the side walls of the keyway 11. Between the side wall and the coding element 41 is thus both left and right of the coding element 41, a gap in which the key 7 comes to rest. In other words, it can also be said that the coding element 1 projects from a side wall into the keyway 11.

In the case of a reversible key, an encoding element 41 can protrude into the keyway 11 both from above, as shown in FIG. 1, and from below. In a reversible key, the coding element 41 protrudes from above and / or from below into the key channel. In FIG. 2, the rotor is shown pivoted through 45 °. Here it can be well recognized that the end face 15b is in contact with the inside 8 of the stator 3 and thus lies on the shearing line 27 between the rotor 1 and the stator 3. The other two mating pins 16 and 17 with bore 22, 23 and the compression spring 20, 21 fulfill the exact same function as the mating pin 5. In Fig. 3 is clearly shown how the mating pin 16 through the tumbler 15 at a corresponding rotational position of the Rotor 1 is classified. Upon further rotation of the rotor 1 from this position, for example in the counterclockwise direction, the tumbler 15 in turn deviates radially inwardly, and accordingly also the control element 9 is moved radially inwardly against the retroactive force of the compression spring 12. As can be seen, the rotary-lock cylinder can be actuated as usual with an associated key 7 according to the invention. In a key with missing control 9 but an operation is not possible even with high forces.

If an attempt is now made to actuate the rotary locking cylinder with a key without a movable control element, the rotor 1 is blocked by the additional tumbler 15 even if the conventional tumbler is arranged, since this tumbler 15 bears against the key shank of the key and can not move radially inwards , Now, if the stator 3, the tumbler 15 and the sleeve 13 made of hard material, such as hardened steel, so it is not possible by force, to rotate the rotor 1. When using high forces then only the handle of the key is turned off.

If a key has a bore instead of a control 9 or 10 at a corresponding position, then the additional tumbler 15 is in engagement with the corresponding counterbolt 5. In this case, the counterbolt 5 is moved into the interior of the sleeve 13 and locks the rotary-lock cylinder. The rotor 1 can not be rotated in this case in the position in which the lock is unlocked. If the hole in the key 7 is cylindrical, then the tumbler 15 can no longer be moved out of the key 7 and the key 7 can no longer be withdrawn, at the same time the counterbolt 5 blocks the rotor. The key 7 has either a control 9, as shown in FIG. 1, or two control elements 9 and 10, as shown in FIG. The controls 9, 10 are mounted in a bore 29 on the key shank 11 and are held by a compression spring 12 in position in the position shown in Figure 2. The controls 9 and 10 are cylindrical pins each having a radially outwardly projecting flange 45 and 46, respectively.

From FIGS. 1 to 3 it can be well recognized that the key 7 can be inserted into the keyway 2 running along or parallel to the rotor axis. The coding element 41 protrudes into the keyway 2, so that a contact between the coding element 41 and the coding path 43 can be produced.

The tumbler 15 is here movably held to the keyway 2 in an opening 47 in the key channel 2 fixed coding element 41. The contact surface 40 of the tumbler 15 is preferably flush with the end face 41a of the coding element 41. The tumbler 15 is here a bolt which is displaceably guided in a sleeve 13 or a bore 28 in the rotor 1 and in said opening 47 in the coding element 41.

The coding element 41 is held stationary with respect to the key channel 2 in the rotor and thus is firmly connected to the rotor 1 in connection. As a result, the coding element 41 is always in the same place. Preferably, the coding element 41 is pressed into a perpendicular to the rotor axis bore 28 in the rotor 1. Alternatively, as shown in FIG. 1, the coding element 41 may also communicate with or be part of a bushing 13 inserted into the bore 28, in which case a one-piece structure is created. The sleeve 13 is preferably pressed into the bore 28. The connection between coding element 41 and sleeve 13 is preferably a press connection.

The rotor 1 is provided with a radial bore 28, in which an optional sleeve 13 is inserted with a through hole 14. In the sleeve 13, preferably made of hardened steel, or directly in the bore 28, a tumbler 15 in the form of a cylindrical bolt is guided in a radially displaceable manner. The radially outer end of the tumbler 15 has a conical surface 15a, which corresponds to the receiving bore 22, 23, 24 in the counter-bolt 5, 16, 17 is formed. A arranged at the other end of the tumbler 15 cylindrical part 15b protrudes through or into the through hole 14. As shown in FIG. 1, the tumbler 15 is held by a control element 10 in a radially defined position in a key inserted in the key channel 2 or even pressed outwards against the stator 3.

The opening 14 in sleeve 44 may also have a square cross section, wherein the cross section of the coding element 41 in the region of the sleeve is also square. This is an asymmetrical design of the coding element 41. The coding element 41 must be inserted into the bush in a corresponding and key-matching orientation. The opening in the bush can also have a different cross-section. By way of example, triangular, polygonal or polygonal cross sections are mentioned here. The asymmetric coding element 41 has the advantage that it can be used several times, whereby the Schliesinkombinatorik is increased.

In FIG. 4, the coding element 41 is shown in engagement with the key 7. Here, the coding element 41 on two Codierungsausnehmungen 48 which are formed according to the coding path 43 on the key 7. The coding recesses 48 correspond to the structure provided by the coding tracks 43 on the key 7.

FIGS. 5a to 5d show a first embodiment of a coding element 41 and the matching coding tracks 43 on the key 7.

The coding element 41 and the key 7 are here designed such that the key has a groove 49 in the region in which the coding element 41 comes to lie. The groove 49 thus receives the coding element 41. The groove 49 is bounded by side walls 50 of the key shank 11. Of the side walls 50, the coding tracks 43 extend into the groove 49, which is particularly well visible from the cross section of Figure 5a. FIG. 5b shows the view of the coding tracks 43 within the groove 49, and FIG. 5c shows how the coding track 43 cooperates with the coding section 42 of the coding element 41. 5c also shows that the pin 15c of the tumbler 15 projects through the coding element 41 and is mounted in the opening 47 in the coding element 41.

Towards the top, the groove 49 is delimited here by a section 59 projecting into the groove. This section 59 can also have a coding function and would then be assigned to the coding path 43. The section 59 cooperates with a recess 58 on the coding element 41. At the same time, the section 59 also serves to protect the coding tracks 43 within the groove 49.

With respect to a through the rotor axis and the central axis through the key shank parallel to the side 55 extending plane El, the coding path 43 and also the coding element 41 is formed symmetrically in the present embodiment shown. An asymmetric training is also conceivable.

In FIGS. 5a to 5d, only one groove 49 with coding tracks 43 is shown. In other embodiments, two grooves 49 may be arranged with coding tracks 43 opposite each other. With regard to this embodiment, it is particularly advantageous if the two grooves 49 are formed symmetrically with respect to a passing through the rotor axis and parallel to the narrow side 54 plane E2, whereby the key is used as a reversible key. The coding element 41 is preferably designed to be rotationally symmetrical about an axis extending in the installed state perpendicular to the plug-in direction. Thus, the coding element 41 can be installed without precise position positioning, that is, not in the correct position. Alternatively, however, the coding element 41 may also be formed asymmetrically, in which case the coding element 41 must be positioned in the key channel 2 with respect to the direction of insertion of the key 7 in the correct position. Two different embodiments of a key 7 according to the invention relating to the arrangement of the control elements 9, 10 will now be explained with reference to FIGS. 4 and 5 c. FIG. 4 shows a reversible key. Here, the key shank 11 of the key 7 has a continuous stepped bore 29 with a step 18. In this stepped bore 29, a compression spring 12 is inserted, the two opposing control elements 9, 10, which are also used in the stepped bore 29, applied. Each of the controls has a flange 45, 46. The flange 45 of the control element 9 stands against the step 18 of the stepped bore 29, which prevents the control element 9 from leaving the stepped bore 29 at the outer end. Opposite the step 18, a sleeve 19 is pressed into the bore 29. The flange 46 of the control element 10 is correspondingly applied to a sleeve 19, which is inserted with a press fit into the stepped bore 29. As can be seen, the control surfaces 9b and 10b of the elements 9 and 10 in the positions shown in Fig. 1 are exactly flush with a surface 61 which marks the boundary of the coding tracks 43. The mechanical control device with the elements 9 and 10 and the compression spring 12 is comparatively easy to manufacture and reliable.

In Figure 5c, a non-reversible key is shown. Again, the key 7 in the key shank 11 comprises a bore 29 in which the control element 9 and the compression spring 12 is inserted. The bore 29 is formed here as a stepped bore. The control element 9 is held in the bore 29 via a bolt 31, which is pressed into the bore 29. Again, the control surface 9b is flush with the surface 61st

FIGS. 6a to 6c show a further embodiment of a coding element 41 and the matching coding track 43 on the key 7. The coding element 41, which is shown only in Figure 6b, has the shape of a bolt 56 through which the opening 47 for receiving the tumbler 15 extends therethrough. In the lateral surface 57 of the bolt 56, recesses 58 which extend the Coding section provides. The recesses 58 are arranged here on both sides with respect to the opening 47. If the bolt 56 has a circular cross section, then the recess 58 may be a circumferential groove. The recess 58 is spaced from the end face 59 of the bolt 56. This distance may, as shown in FIGS. 6a to 6c, be differently designed for the purpose of increasing the number of locks in different embodiments, for example in three increments.

The depth of the groove 49 in the key 7, which receives the bolt 56, thereby also formed differently in each embodiment, wherein the key also has three increments here. The groove 49 here likewise has a coding track 43, which is bounded at the top by a section 59 which projects into the groove 49 and simultaneously defines the narrow side. The coding path 43 is provided here by the recess provided between the bottom of the groove 49 and the section 59 and the section 59 itself.

With the three increments, the number of lock combinations can be significantly increased. Another number of increments is also conceivable.

FIGS. 7a to 7b show further embodiments of possible coding elements 41. The coding elements 41 likewise have a recess 58 here, which corresponds to the section 59 of the groove 49. This recess 58 is optional here and, if the section 59 is likewise absent, the recess 58 can be dispensed with. Furthermore, the coding elements 41 here have additional coding recesses 60, which have different shapes. The key 7, which is not shown here, likewise has coding tracks 43 corresponding to the coding recesses 60, which then extend from the side wall into the groove.

The cross-section of these Codierungsausnehmungen 60 may be formed in various ways, such as rectangular in Figure 7a, and / or semicircular in Figure 7c, and / or trapezoidal in Figure 7c, and / or triangular in Figure 7c. The combination of several different cross sections is possible, as well as Arrangement of several identical or different coding recesses on one side of the coding element 41, as shown with reference to FIG. 7d.

The cross sections according to FIG. 7d are preferably arranged in a bolt 56 with a rectangular cross section. The bolt 56 is then pressed in the correct position to the keyway 2 in the rotor, the Codierungsausnehmungen run in the direction of the keyway 2.

Further possible coding elements are shown in FIGS. 7e and 7f. Here, some of the coding recesses 60 have undercuts 64.

The coding tracks 43 according to FIGS. 5 to 7 have in common that they are arranged on the narrow side 54 of the key 7. FIGS. 8 and 9 show alternative and further embodiments. Here, the coding element 41 has a groove 63, in which the coding section 42 is arranged. The key 7 has coded tracks 43 cooperating on the key shaft with the coding section 42. In FIG. 8, the coding section 42 is arranged at the bottom of the groove 63 of the coding element 41, and the coding path 43 is accordingly arranged on the narrow side 54 of the key.

In Fig. 9, the coding portion 42 is disposed on the side walls of the groove 63, and the coding trace 43 is accordingly arranged on the side 55 of the key.

A combination of Figures 8 and 9 is also possible, in which case the coding path 42 is arranged both on the narrow side 54 and also on the side 55 of the key 7, in which case also the coding sections on the side walls and the bottom of the groove 63 must be arranged ,

Also, it would be conceivable that the key in the transition from the side 55 on the Narrowed side 54 is formed chamfered, which may be present on both the bevel, as well as on the narrow side 54 and / or on the side 55 corresponding codings. FIGS. 10a and 10b show a particularly preferred embodiment of a key tip. The key tip comprises a key cap 65, which is attached to the key shank 11. The key cap 65 can be connected via a positive, non-positive or cohesive connection with the key.

The key cap 65 includes the coding path 43, while the control element 9 is arranged on the key shaft 11. The arrangement of the coding track 43 on the key cap 65 has the advantage that the number of Schliesspermutationen can be increased in a simple manner. The key cap 65 can also be arranged on the keys according to the AusfuhrungsfonTi of Figure 4.

The key cap 65 can be made very efficiently with a variety of different coding tracks 43 and in different materials. In the figures I Ia and I Ib, a further embodiment of the present invention is shown. Identical parts are provided with the same reference numerals. In addition to the features already described above, the rotary lock cylinder comprises a further tumbler in the form of a query tumbler 66. The tumbler 66 serves to interrogate the presence of the coding web 43. In the presence of the coding web 43, the query tumbler 66 is moved to the closing height, so that the rotor 1 can be rotated to the stator 3.

The query tumbler 66 here comprises a rotor pin 67 and a stator pin 68, which is acted upon by a spring 69 acting against the rotor 1 with a spring force. The query tumbler 66 is then at closing height when the contact line between the rotor pin 67 and the stator pin 68 lie on the shear line 27.

Particularly preferably, the query tumbler 66 acts on the side wall 50, which the Groove 49 laterally limited. This is illustrated in FIG. 11a. In another embodiment, the query tumbler 66 acts on the coding path 43, which is shown in the figure I Ib. In both embodiments, the query locking in the direction of the central axis M may be offset from the coding element 41.

FIGS. 12a to 12c show a further advantageous embodiment. Here it is well shown that the key shank 11 can be formed as a main profile. In this case, the key shank 11 is reduced by an outer surface 70 in a plurality of defined incremental steps, wherein the coding element 41 is also adapted. These increments have the advantage that the copy security and the number of permutations can be improved. In the figures, three different increments are shown by way of example. The number of increments can be arbitrary. In FIGS. 12a to 12c, the groove 49 is not shown. However, the groove 49 can be arranged equally, with reference being made here to FIGS. 6a and 6c.

Furthermore, it is shown in FIGS. 12a to 12c that the coding element 41 has on its surface facing the key shank 11 additional coding regions 71 which cooperate with coding paths 43 on the key shank. Here, exemplary coding paths 43 are shown, which have the shape of a triangle in cross section. The form and number can be arbitrary.

LIST OF REFERENCE NUMBERS

Rotor 30 compression spring

Keyway 31 bolts

Stator 40 contact surface

Steel sleeve 41 coding element

Counterbolt 41a face

Key 42 coding section

Inside 43 coding track

Control 45 Flange

b control surface 46 flange

0 control 47 opening

0b control surface 48 Codierungsausnehmung1 key shank 49 groove

2 reset element 50 side wall

3 rifle 52 key tip

4 through hole 53 outside

5 additional locking 54 narrow side

5a conical control surface 55 side

5b flat face 56 bolts

5c pin 57 lateral surface

6 mating pin 58 recess

7 counter bolt 59 section

8 step 60 Codierungsausnehmung9 sleeve 61 surface

0 compression spring 63 groove

1 compression spring 64 undercut

2 Mounting hole 65 Key cap 3 Mounting hole 66 Quiet locking 4 Mounting hole 69 Spring

7 shear line 70 outer surface

8 Bore 71 Coding area 9 Stepped bore, blind hole

Claims

1. key (7) and rotary lock cylinder for a security lock, wherein the Drehschliesszy cylinder a rotor (1), a stator (3), a plurality of tumblers and an additional tumbler (15), and wherein the key (7) control bores for the classification of a plurality of tumblers and at least one in the key shank (11) of the key (7) arranged control element (9, 10) having a control surface (9b, 10b) and which cooperates with the additional tumbler (15) of the rotor,

characterized,

in that the rotary-locking cylinder, in particular the additional tumbler (15), comprises at least one coding element (41) and that the key (7) comprises at least one coding track (43) which matches the coding element (41) and extends in the direction of insertion.

2. Key according to claim 1, characterized in that the key shank (11) of the key is divided into at least two, preferably at least three, sectors, namely in a standard sector with control bores for the classification of the tumblers and in a coding sector with the coding path (43) , as well as an optional security sector with an additional coding path (43), where the security sector is congruent or spaced from the coding sector.

3. Key according to claim 1 or 2, characterized in that the key shank (11), in particular in the standard sector, is not profiled.

4. Key according to one of the preceding claims, characterized in that the coding path (43) directly on the key shank (11), in particular in the region of the key tip is arranged, or that the coding path (43) in a by a with the key shank (11 ), or a key cap (65) communicating with the key shank (11), which is in particular attachable to the key shank (11), wherein the Key cap (65) is preferably made of a harder material than the key shaft (11), and / or wherein the key cap (65) via a positive and / or non-positive and / or material connection with the key shaft (11) is in communication.

5. Key according to one of the preceding claims, characterized in that the coding path (43) is arranged on one side or two sides on the key shank (11) or on the shaft element or on the key cap (65), wherein in the two-sided arrangement, the coding path (43 ) with respect to a through a central axis in the key shank (11) or through the rotor axis extending plane (E), which is parallel to the narrow side or broad side of the key (7) is arranged symmetrically on the key shank (11).

6. Key according to one of the preceding claims, characterized in that the coding path (43) on the outside (53) of the key shank (11), in particular on the narrow side (54) and / or the broad side (55) is arranged, and that the coding element (41) comprises a groove (63) provided with coding portions (42).

7. Key according to one of the preceding claims, characterized in that the coding path (43) in its length along the central axis (M) of the key shank (11) is limited or shorter than the key shank (11) is formed, so that the Coding path does not extend over the entire key shank (11), wherein the coding path (43) is preferably arranged in the key tip (52) and shorter than the key shank (11) is formed.

8. Key according to one of the preceding claims, characterized in that the coding path (43) in its length along the central axis (M) of the key shank (11) corresponds to half the shaft length.

9. Key according to one of claims 1 to 6, characterized in that extending the coding path (43) over the entire key shank (11).

10. Key according to one of the preceding claims, characterized in that the coding path (43) is milled and / or drawn and / or produced by another method.

11. Key according to one of the preceding claims, characterized in that the coding path (43) in a key shank (11) extending groove (49) is arranged.

12. A key according to claim 11, characterized in that the groove (49) comprises two opposite side walls (50) provided by the key shank (11) which extend in the direction of the rotor axis, both side walls (50) being connected to said coding track (43 ) are provided.

13. Key according to one of the preceding claims, characterized in that the key shank (11) is narrowed by the coding path (43), in particular on both sides or narrowed on one side, whereby thereby in the direction of the central axis (M) of the key shank (11) extending Surface (61) is provided.

14. Key according to one of the preceding claims, characterized in that the key shank (11) of the key (7) has a continuous stepped bore (29) into which a compression spring (12) is inserted, the two opposing control elements (9,10) acted upon or that the key shank (11) of the key (7) has a blind bore (29) into which a compression spring (12) is inserted, which acts on a control element (9, 10), which with a in the blind bore (29) Pressed securing element (19) in the blind bore (29) is held.

15. A key according to claim 14, characterized in that in the stepped bore or the blind bore (29) a sleeve (19) is pressed, in which a control element (10) is guided, wherein the sleeve (19) represents the securing element, and / or that the control elements (9,10) at the inner end in each case have a flange (9a, 10a) which bears against a shoulder (8a) or the sleeve (19).

16. Key according to one of the preceding claims, characterized the control elements (9, 10) have control surfaces (9b, 10b) which are flush with narrow sides of the key (7) or project beyond the narrow sides of the key (7), or which engage with a contact surface (40) defined by the end face of the coding element ) are flush.

17. Key according to one of the preceding claims, characterized in that the receiving bore (22, 23, 24) is a conical bore which cooperates with the conical control surface (15a) of the additional tumbler (15).

18. Key according to one of the preceding claims, characterized in that from an outer side (67) of the key (7) of the key shank (11) can be reduced in several increments, wherein the coding element (42) in several increments can be increased, whereby the combinatorics is enlargeable.

19. A key according to one of the preceding claims, characterized in that the control element (9, 10) against the restoring force of a restoring element (12) is radially displaceable, wherein the stator (3) inside a receiving bore (22, 23, 24), in which the additional tumbler (15) against the restoring force is radially inwardly movable, and wherein the additional tumbler (15) has a conical control surface (15a) and an opposite to the control surface (15a) arranged contact surface (40), and wherein at corresponding Rotational position of the rotor (1) the control element (9, 10) is held by the said restoring force in a position in which its control surface (9a, 10b) is in contact with the contact surface (40),

20. Rotary lock cylinder according to one of the preceding claims, characterized in that the key (7) in a along the rotor axis extending keyway (2) can be inserted, wherein the coding element (41) projects with a coding section (42) in the keyway (2) ,

21. Rotary lock cylinder according to one of the preceding claims, characterized in that the tumbler (15) is movably held in an opening (47) in the coding element (41) and with an end face (41a) of the coding element (41) is preferably flush.

22. Rotary lock cylinder according to one of the preceding claims, characterized in that the coding element (41), in particular in asymmetric design, with respect to the keyway (2) fixed fixed and held in the correct position in the rotor, or that the Codierangselement (41), in particular at symmetrical Training, with respect to the keyway (2) fixed in place and preferably non-correct position, wherein the coding element (41) is preferably pressed into a perpendicular to the rotor axis bore (28) or wherein the coding element (41) in a direction perpendicular to the rotor axis extending bore (28) pressed bush (13) mounted, in particular pressed, is or is part of this bush (13).

23. Rotary lock cylinder according to one of the preceding claims, characterized in that the tumbler (15) is a bolt which is displaceably guided in a sleeve (13) or a bore (28) in the rotor (3).

24. Rotary lock cylinder according to one of the preceding claims, characterized in that the coding portion (42) of the coding element (41) has at least one Codierungsausnehmung (48), wherein particularly preferably at least two Codiemngsausnehmungen (48) are present, which seen in the insertion direction the same or have a different cross-section.

25. Rotary lock cylinder according to one of the preceding claims, characterized in that the receiving bore (22, 23, 24) in a stator (3) radially displaceable counterbolt (5, 16, 17) is arranged, and that the conical control surface (15 a) the additional tumbler (15) with the receiving bore (22, 23, 24) of the counter bolt (5, 16, 17) cooperates to arrange this radially, wherein preferably a plurality of counterbolt (5, 16, 17) are arranged spaced from each other.

26. Rotary lock cylinder according to one of the preceding claims, characterized in that the coding elements (41) seen in the insertion direction shorter than the keyway (2) and / or the key shank (11) is formed and / or that the coding path (43) shorter than that Key shank (11) is formed.

27. Rotary lock cylinder according to one of the preceding claims, characterized in that the rotary lock cylinder comprises a further tumbler in the form of a query tumbler (66), which query tumbler (66) interrogates the presence of the coding web (43).

28. Rotary lock cylinder according to claim 27, characterized in that the query locking device (66) on the side wall (50) which limits the groove laterally acts.

29. Rotary lock cylinder according to one of claims 27 to 28, characterized in that the query tumbler (66) acts on the coding path (43).