EP3088640B1 - Locking system and process for the manufacture of a locking system - Google Patents

Description

The invention relates to a locking system with lock cylinders and matching flat keys and a method for producing a lock cylinder or a matching key for such a locking system with a sinusoidal based profile variation.

The invention describes a profile variation on the flat keys or the key channels of the associated lock cylinder of a hierarchically structured locking system, in particular general-master key or central key system, wherein the broad sides of the key shanks generated according to a lock system-specific coding profile specification, extending in the longitudinal direction of the key shank Variation and the Key channels of the lock cylinder to have corresponding varying ribs, wherein the individuality and in particular the Schließhierarchie specifying Coding profile specification by a plurality, the edge distances of vertices of the Variierungsnuten of a longitudinal edge of the Schlüsselschaftbreitseite, in particular from the spine, or the vertexes of the variating ribs from the edge of a broadside of the keyway and the vertex depths of the V-grooves or the Vertex heights of the Varying Rip is fixed in a cross-sectional plane through the key shank or the key channel extending sine functions whose zero lines parallel to the key center plane or key channel center plane and transverse to the longitudinal direction of the key shank or the key channel, and whose defined by an amplitude parameter, a wavelength parameter and a phase curve, the position the vertex of the V-grooves respectively Describes varying ribs, wherein the varying ribs have a defined by the region of the peaks of the curve, wherein all the position of the vertices of a broadside defining sinusoidal functions have the same zero line whose distance from the key shank center plane or the keyway center plane is greater than half the material thickness of the key shank, so that the zero line is outside the cross-sectional area the key shank or the cross-sectional area of the key channel is located. The sine functions have the same wavelength parameter.

The AT 405 550 B describes a cylinder lock with a key channel, from whose opposite side walls varying ribs protrude into the keyway. The V-ribs of the two broad sides are offset relative to one another and have a peak height such that the keyway has a paracentric profile. The mutually equally high V-ribs rooted to form a rounding in the broad sides of the keyway and have straight flanks that merge in the apex area in a vertex rounding. The vertices of the varying ribs are equally spaced from each other.
The DE 101 34 894 A1 describes a profile variation on flat keys or key channels, in which the course of the bottom surfaces of Variationnuten and the faces of V-ribs along a sinusoidal function.
The DE 10 2006 002 726 A1 describes a profile flat key with bulges in the key shank whose contour lines are approximated by a sine function.
The DE 197 07 932 A1 describes the profile of a flat key, wherein the profile ribs have a parabolic cross-sectional contour and lying between the profile ribs of the key shank Variation grooves a V-shaped Have cross-sectional profile.

The DE 103 06 371 A1 describes a profile variation for the production of locking systems, wherein rectilinear groove walls intersect at right angles.

The key profiles described in the two last-mentioned documents lead to slim, from the side walls of the key channel outgoing Variation ribs. Especially in the head area, the flanks of these ribs can have a steep slope. This leads to a reduced stability, so that the V-ribs in the region of the key insertion opening of the key channel can bend when inserting a key.

In addition, there is a need to optimally use the available mechanical permutation spectrum.

The invention has for its object to provide a more robust design rule for designing a variety of locking systems with hierarchical structure.

The object is achieved by the invention specified in the claims. It is proposed that the varying ribs have a cross section defined by the tip region of the sinusoids. The ribs thus have a cross-sectional area that is bordered by the wave crest of a sinusoid. The peak area of a sinusoidal amplitude can be approximated by a parabolic contour line. As a result, the cross-sectional areas of the ribs emanating from the side walls of the keyway have the cross-sectional area of about a parabola. The flanks of the tread rib are at the steepest where the tread ribs are thickest. The edge strength is reduced sub-proportional to the rib height. This leads to improved rib stability. The use of multiple sine functions not only leads to an optimal arrangement of adjacent ribs to each other. The use of a first and a second sine function, which have the same zero line, also leads to an easy-to-manufacture coding profile. By having the sine functions having the same wavelength parameter and the zero line having a distance greater than half the material thickness of the key shank remote from the key midplane outside the cross section of the key shank, it is ensured that only the outermost tip region of a sine amplitude is shaping the va riation groove , Preferably, all of the multiple sine functions have only two different amplitude parameters. The amplitude parameters preferably differ only by small amounts, which are larger, however, than the sampling tolerances of varying ribs and variation grooves. In a preferred embodiment, sine functions alternate with mutually different amplitude parameters, so that a slightly higher rib is adjacent to a slightly lower rib. The same also applies to the variation grooves corresponding to the variation ribs. Two, three, four, five or preferably six sine functions preferably have the same wavelength and have a common zero line. Preferably, all sine functions, the sine functions defining the edge distance position and the vertex depth of the variation grooves of a broad side of the key shank or of the key fins of the key channel have the same wavelength and lie in the same zero line. They differ only slightly by an amplitude parameter and by a phase parameter, wherein the phase parameter is preferably selected such that the sine functions lie equidistant in the broad side extension of the key shank or in the vertical extent of the side wall of the key channel next to each other.

In a development of the invention, it is provided that the key shank broad side is divided into several regions in the transverse direction to the longitudinal extent of the key shank or the keyway wall. Each of these areas forms a variation zone. The variation zones have a plurality of V-ribs or associated V-grooves. A sine function may be the generator of a variation rib or variation groove in the first variation zone and at the same time the generator of a variation rib or variation groove in the second variation zone. The varying zones are preferably spaced apart by a distance. They are spatially separated. The distance is greater than the phase difference or greater than twice the phase difference of two adjacent sine functions. A first variation zone and a second variation zone may be associated on a common broadside of the key or a common keyway wall, respectively. There may be provided a third variation zone associated with the opposite key shank broadside or keychain wall, respectively. Preferably, a plurality of sine functions extend parallel to each other in such a way that they respectively define a variation rib or variation groove in the first and in the second variation zone. In the intermediate region between the first variation zone and the second variation zone, a guide rib or a guide groove can be arranged. The guide rib protrudes as well as the V-ribs from the side wall of the keyway. The key profiles each have on their two broad sides at least one guide groove, wherein the guide grooves or guide ribs are arranged so that they protrude in a common longitudinal sectional plane of the key shaft or the keyway. They are arranged so that a paracentric key profile or a paracentric key channel profile is formed. The smooth-walled curved course of the V-ribs is also advantageous in terms of production engineering if the cylinder core having the key channel has transverse bores in which complementary tumblers are mounted, for example balls or pins. Due to the smooth-walled, kink-free contour line of the V-ribs, significantly fewer burrs are formed when clearing the key-channel. This is also the case if the guide grooves have a parabolic cross-sectional profile and in particular a cross-sectional profile generated by a sine function. The sine function in this regard may be in a different zero line than the sine functions defining the variation grooves or variation fins. It is also advantageous if the two different zones of variation assume different coding functions when creating several locking systems, so the first variation zone can be used to distinguish locking systems from one another. For example, a variation groove may indicate that the locking system is a general master key system and that the location of another variation groove in the first variation zone indicates that it is a central key system. The second variation zone may be used in an analogous manner to distinguish lock groups. Each of a plurality of lock groups has a specific variation groove that exists only on a key of the associated lock group. The key channels have corresponding V-ribs. The third variation zone can be used to vary the keys of a locking group. This third variation zone also has variation grooves / ribs whose position and their peak depth are defined by the previously described sine functions. With the invention, an optimal use of the limited variation spectrum is possible.

Fig. 1

schematisch ein erstes Ausführungsbeispiel der erfindungsgemäßen Lehre zum Aufbau einer Profilvariation an einem Flachschlüssel beziehungsweise einem Schließzylinder, bei dem die beiden Breitseiten 2, 3 des Schlüsselschaftes 1 beziehungsweise Wände eines Schlüsselkanals unterschiedlich profiliert werden und der Schlüsselschaft nicht dargestellte schlüsselbrustseitige Einschnitte aufweist zum Einsortieren von Zuhaltungsstiften eines Schließzylinders,

Fig. 2

einen Querschnitt durch einen Schlüsselschaft mit einer Profilierung nach Figur 1, jedoch zusätzlich mit Führungsnuten 4, 5, 6,

Fig. 3

am Beispiel einer Zentralschlossanlage die Nutzung der in den Figuren 1 und 2 dargestellten Codierungsprofilvorgabe zur Codierung der Schlüsselkanäle 8 von Schließzylindern 9 und zugehörigen Schlüsseln,

Fig. 4

am Beispiel einer General-Hauptschlüsselanlage die Verwendung der in den Figuren 1 und 2 dargestellten Codierprofilvorgabe zur Profilierung der Schlüssel beziehungsweise Schlüsselkanäle 8 voneinander verschiedener Hierarchiestufen,

Fig. 5

schematisch ein zweites Ausführungsbeispiel der erfindungsgemäßen Lehre zum Aufbau einer Profilvariation an einem Wendeflachschlüssel, dessen beide Schlüsselbreitseiten 2, 3 um 180° drehsymmetrisch profiliert sind und dem Schlüsselkanal 8 eines Schließzylinders.

The invention further relates to a locking system, wherein the position and the apex depth of the V-grooves or V-ribs is defined exclusively by sine functions having the same wavelength parameter and their zero lines have the same distance from the key center plane or keyway center plane. Embodiments of the invention are explained below with reference to accompanying drawings. Show it:

Fig. 1

schematically a first embodiment of the teaching of the invention to build a profile variation on a flat key or a lock cylinder in which the two broad sides 2, 3 of the key shank 1 or walls of a keyway are profiled differently and the key shank not shown keyhole-side incisions for sorting tumbler pins of a lock cylinder .

Fig. 2

a cross section through a key shank with a profiling after FIG. 1 but additionally with guide grooves 4, 5, 6,

Fig. 3

the example of a central lock system, the use of in the FIGS. 1 and 2 illustrated coding profile specification for coding the Key channels 8 of lock cylinders 9 and associated keys,

Fig. 4

using the example of a general master key system, the use of in the FIGS. 1 and 2 illustrated Codierprofilvorgabe for profiling the key or key channels 8 from each different hierarchy levels,

Fig. 5

schematically a second embodiment of the teaching of the invention to build a profile variation on a turning flat key whose two key broadsides 2, 3 are profiled by 180 ° rotationally symmetrical and the keyway 8 of a lock cylinder.

The FIG. 1 shows by the example of a cross section through a key shank 1 of a flat key by the design rule according to the invention defined positions and depths of Variierungsnuten 11 to 19, 32 to 36. They correspond to the by the design rule of the two opposite walls of the keyway 8 projecting into the keyway varying ribs. A key can only be inserted into a key channel if the key, at least for each of the profiling ribs 11 to 19 or 32 to 36, has an associated variation groove 11 to 19; 32 to 36. A key can not be inserted into the lock cylinder, if the keyway at least one variation rib 11 to 19; 32 to 36, to which the key shank has no corresponding variation groove 11 to 19 or 32 to 36, so that the key tip is mechanically prevented from being inserted into the key channel with the presence of the variation rib. An additional variation groove 31 may be provided.

The key shank 1 has a longitudinal direction extending from the tip of the key to the key of the key. In the direction of the longitudinal direction the key can be inserted into the keyway 8 of a cylinder core 9 of a lock cylinder. On its facing away broad sides 2, 3 of the key shank 1 has the Variierungsnuten. The key broad side 2 may have the variation groove 11, 12, 13, 14, 15, 16, 17, 18, 19. The opposite broad side 3 the Variation grooves 31, 32, 33, 34, 35, 36. It is envisaged that takes place by the absence of one or more Variation grooves a coding of the key. By not having one or more of the variation grooves on a key of a locking system, it is prevented that such a coded key can be inserted into a lock cylinder in which a coding rib protrudes from the side wall of the key channel 8 at the location of the non-existing coding groove is arranged.

In the figures, the coding grooves and the coding ribs which correspond to each other are designated by the same reference numerals. A coding rib, which is designated by a specific reference number, must be able to engage in a coding groove, which is designated by the same reference number, so that the key can be inserted into the associated lock cylinder. With a suitable arrangement of V-ribs 11 to 19 or 31 to 36 can thus encode a closed amount of lock cylinders such that in the key channel 8 only those keys can be inserted, in which the associated variation groove is present.

The creation of a locking plan of a locking system takes place with the encoding profile specification according to the invention, which uses a plurality of sine curves to define the position and the vertex depth of the variation grooves 11 to 19 and 31 to 36, respectively. The position of a variation groove 11 to 19 or 31 to 36 is characterized by their distance in the direction x from the Boundary edge 2 'or 3' of the broad side 2, 3 or defined by a back plane R. The marginal edge 2 ', 3' can be defined for example by a key back plane R. The sine functions extend along a zero line 20 which corresponds to the x-axis of a sinusoid described in an XY coordinate system. The tip sections of the sine curve have a parabolic-like course and form at least the apex regions of the V-grooves or V-ribs. The zero line is spaced by the amount n of a running through the cross-sectional center of the profile core center plane M. The Indian FIG. 1 illustrated profiled core corresponds to the key cross-sectional profile of a key shank 1. The two broad sides 2, 3 are spaced apart by the material thickness S of the key shank 1. The distance of the zero line 20, 20 'to the center plane M is greater than half the material thickness S, which corresponds to the cross-sectional thickness of the profile core.

The broad side 2 of a key shank 1 can have a total of nine variation grooves 11 to 19, wherein the variation grooves are defined by the wave crests of sine functions 21 to 26. The sine functions 21 to 26 have the same wavelength parameter L and differ only by their amplitude parameters A and by their phase parameter P.

$${\mathrm{A}}_2\cdot \sin \left(\mathrm{L}\cdot \left(\mathrm{x}+{\mathrm{P}}_2\right)\right)$$

$${\mathrm{A}}_3\cdot \sin \left(\mathrm{L}\cdot \left(\mathrm{x}+{\mathrm{P}}_3\right)\right)$$

$${\mathrm{A}}_4\cdot \sin \left(\mathrm{L}\cdot \left(\mathrm{x}+{\mathrm{P}}_4\right)\right)$$

$${\mathrm{A}}_5\cdot \sin \left(\mathrm{L}\cdot \left(\mathrm{x}+{\mathrm{P}}_5\right)\right)$$

$${\mathrm{A}}_6\cdot \sin \left(\mathrm{L}\cdot \left(\mathrm{x}+{\mathrm{P}}_6\right)\right)$$

$${\mathrm{A}}_7\cdot \sin \left(\mathrm{L}\cdot \left(\mathrm{x}+{\mathrm{P}}_7\right)\right)$$

For a profile variation that uses seven sine functions, the sine functions are defined using the following equations: $${\mathrm{A}}_1\cdot \sin \left(\mathrm{L}\cdot \left(\mathrm{x}+{\mathrm{P}}_1\right)\right)$$

$${\mathrm{A}}_2\cdot \sin \left(\mathrm{L}\cdot \left(\mathrm{x}+{\mathrm{P}}_2\right)\right)$$

$${\mathrm{A}}_3\cdot \sin \left(\mathrm{L}\cdot \left(\mathrm{x}+{\mathrm{P}}_3\right)\right)$$

$${\mathrm{A}}_4\cdot \sin \left(\mathrm{L}\cdot \left(\mathrm{x}+{\mathrm{P}}_4\right)\right)$$

$${\mathrm{A}}_5\cdot \sin \left(\mathrm{L}\cdot \left(\mathrm{x}+{\mathrm{P}}_5\right)\right)$$

$${\mathrm{A}}_6\cdot \sin \left(\mathrm{L}\cdot \left(\mathrm{x}+{\mathrm{P}}_6\right)\right)$$

$${\mathrm{A}}_7\cdot \sin \left(\mathrm{L}\cdot \left(\mathrm{x}+{\mathrm{P}}_7\right)\right)$$

The amplitude parameters A ₁ to A ₇ may be the same. You can also differ. The amplitude parameters A ₁ to A ₇ preferably assume two different values, with amplitude parameters of unequal values alternating, as described by the following equations: $$\begin{array}{cc}{\mathrm{A}}_{\mathrm{1,}\mathrm{}\mathrm{3,}\mathrm{}\mathrm{5,}\mathrm{}7}& ={\mathrm{C}}_1\\ {\mathrm{<figure-callout\; id="2"\; label="A"\; filenames="imgf0001.png,imgf0002.png"\; state="\{\{state\}\}"><figure-callout\; id="4"\; label="A"\; filenames="imgf0002.png,imgf0003.png"\; state="\{\{state\}\}"><figure-callout\; id="6"\; label="A"\; filenames="imgf0002.png,imgf0003.png"\; state="\{\{state\}\}">A</figure-callout></figure-callout></figure-callout>}}_{\mathrm{2,}\mathrm{}\mathrm{4,}\mathrm{}6}& ={\mathrm{C}}_2\end{array}\}$$

It can be seen that odd sine functions have the amplitude value C ₁ and straight sine functions the amplitude value C ₂ . The amplitude values C ₁ , C ₂ can differ only slightly. The difference essentially only needs to be slightly larger than the sampling tolerance of the key profile.

It is further contemplated that the phase parameters of adjacent sine functions differ by a constant value. This can be represented with the following recursion function: $${\mathrm{P}}_{\mathrm{n}}+1={\mathrm{P}}_{\mathrm{n}}+{\mathrm{C}}_3$$

Sinusoids of the sine functions are thus offset by a common multiple in the x-direction, so that adjacent peaks / peaks of the sine functions are equally spaced.

In the embodiment of FIG. 1 has the broad side 2 of the key shank 1 two spatially separated varying zones. A first variation zone is determined by the profile ribs / grooves 11, 12, 13 defined by the immediately adjacent sine functions 23, 24, 25.

A second variation zone with variation grooves 14, 15, 16, 17, 18, 19 is defined by the sine functions 21, 22, 23, 24, 25, 26 equally spaced in the x-direction. It can be seen that the sine function 23 defines both the variation groove 11 and the variation groove 16, the sine function 24, both the variation groove 12 and the variation groove 17, and the sine function 25 both the variation groove 13 and the variation groove 18. Only the variation grooves 19, 14 and 15 are defined by sine functions 21, 22 and 26, which otherwise do not define any further variation grooves.

Adjacent sine functions 21, 22, 23, 24, 25, 26 have vertices 21 ', 22', 23 ', 24', 25 ', 26', which have a different peak height. The peak height varies by the distance d and is defined by the amplitude parameter A ₁ to A ₇ . The peak height of the variation groove 11 to 19 is defined by the peak height or the amplitude parameter. The phase parameter P ₁ to P ₇ defines the edge distance position of the variation groove 11 to 19.

The same applies to the position of the varying ribs 11 to 19, which protrude from the side wall of the keyway 8 in the keyway 8.

The opposite broad side 3 has further variation zones, which are defined by three sine functions 27, 28, 29. These sine functions have a zero line 20 'that is the same measure n from the key shank center plane M is spaced as the zero line 20. The sine functions 27 to 29 are defined by the same law given in equations 1 to 9. At least two more variation zones are formed. In one variation zone, the variation grooves 32, 33, 34 extend. In another variation zone, the variation grooves 35, 36 extend.

Finally, the key broadside 3 still has the variation groove 31. It is also provided here that a plurality of variation grooves 31 to 36 can also be defined by a sine function.

The presence of one of the variation grooves / ribs 11, 12, 13 of the first variation zone can be used as a designation that the key or lock cylinder is an element of a general master key system. The presence of another variation groove / rib 11, 12, 13 of the first variation zone can be used to identify a key or lock cylinder as an element of a central key system. The variation grooves / ribs 14 to 19 of the second variation zone can be used to individualize the keys or lock cylinders of a locking system. The same applies to the variation grooves / ribs 31 to 36 of the other variation zones.

While the FIG. 1 shows only the location of the possible Variationnuten on a key shank or the position of the possible Variation ribs in a key channel, shows the FIG. 2 the cross-section through the shank of a flat key, which is provided on the basis of the previously discussed encoding profile specification with the Variation grooves 12, 14 to 19, 32 to 36. Only the variation grooves 11, 13 usable for characterizing the locking system type are not present. In other embodiments, not shown, but instead of the variation groove 12, the variation groove 11 or 13 may be present. In addition, at least one, but preferably a plurality of variation grooves 14, 19 could not be formed. Also, of the variation grooves 32 to 36, one or more variation grooves may not be present.

The intermediate spaces 14 ", 15", 16 ", 17", 18 ", 32", 33 ", 35" between two adjacent variation grooves 14 to 19 and 32 to 36 are rounded here. The peak areas 14 'to 19' and 32 'to 36' are parabolic and are defined by the tip portions of the sinusoids 21 to 29.

The FIG. 2 also shows guide grooves 4 to 6, in the guide ribs 4 to 6 of the keyway 8 engage to guide the key in the keyway 8. The apex areas of the guide grooves 4 to 6 project beyond the key center plane M. The result is a paracentric key profile. The guide grooves 4, 6 are not used to distinguish individual keys of a locking system. However, different locking systems may differ in the position of the guide grooves 4, 6, for example, at least one of the guide grooves 4, 5, 6 may be slightly displaced in the x direction.

The Indian FIG. 2 displayed key can be plugged into all key channels of a key channel. It is, so to speak, a general master key, because none of the possible variation ribs can exercise a disabling function.

The FIG. 3 shows on the basis of a central lock system, a first embodiment of a locking system. A front door has a lock cylinder 7 with a cylinder core 9, which has a key channel 8. From the edge 8 'of the key channel 8 Variation ribs 13, 14 are spaced. From the wall of the Key channel 8 also protrude guide ribs 4, 5, 6 in the keyway 8 into it.

The lock cylinder of the apartments 1, 2, 3 and technology also have the guide ribs 4 to 6 and the V-ribs 13 and 14. In addition, the lock cylinder 7 of the apartment 1 has the variation rib 33, the apartment 2, the variation rib 34, the apartment 3 the Variation rib 35 and the art the Variation rib 36th

Similarly, only the key to the apartment 1 has the variation groove 33 and only the key to the apartment 2, the variation groove 34 and only the key of the apartment 3, the variation groove 35 and the caretaker's key only the variation groove 36. This ensures that the key to the apartment 1 only the lock cylinder to the apartment 1 and the front door, the key to the apartment 2 only the lock cylinder to the apartment 2 and the front door, etc. closes.

The FIG. 4 shows as a further embodiment, the key profiles of a general master key system. The plant has two groups GS1 and GS2. There is a variation groove 12 in the first variation zone indicating that it is a General Master Key System. Furthermore, the variation groove 32 or the associated rib in the keyway is system-specific. The keys belonging to the group GS1, for example to the office 1, 2, 3, are distinguished by the presence or absence of a variation rib 14 to 16 in the first variation zone. The lock cylinder to office 1 has the variation rib 14, the variation rib 15 to office 2 and the variation rib 16 to office 3 and no other variation ribs in the first variation zone. Of the associated key each has a variation groove 14, 15, 16.

The group key GS1 has all the variation grooves 14 to 16 in the first variation zone, so that all offices 1 to 3 can be closed with this key.

The lock cylinders to the group GS2, which are designated production 1, production 2 and technology, each have only one variation rib 17, 18 or 19. The associated keys have only the variation groove 17, 18, 19, so that the relevant key only the each associated lock cylinder can close.

The group key GS2, however, has all Variationnuten 17-19 of the second variation zone, so that with this key, the lock cylinder can be closed to production 1, production 2 and technology.

The group key GS2 can not close the locking cylinders of group 1, ie office 1, office 2 and office 3. Nor can with the group key of group GS1 close the lock cylinder of the second group, ie production 1, production 2 and technology.

The group key GS1 does not have the variation grooves 17 and 19, and the group key of the group GS2 does not have the variation grooves 14 to 16.

The general master key GHS, on the other hand, has all the variation grooves 14 to 19, so that it fits into all lock cylinders of the two groups GS1 and GS2.

The FIG. 5 shows similar to the FIG. 1 Based on a profile core, which is formed in a locking system of a key shank 1 or the free space of a key channel 8, the possible Variation grooves 10 to 19 or V-ribs 10 to 19.

Unlike the embodiment discussed above, this is a profile for a flip flat key. The profile is rotationally symmetrical about a center axis of the profile core by 180 °. Again, the positions and depths of the individual variation grooves 10 to 19 and the heights of the variation ribs 10 to 19, respectively, are defined by a set of sinusoids that obey the equations 1 to 9 above. There are a total of seven sinusoids 21 to 27 are provided with which three spatially separated zones of variation are determined. A first variation zone with the variation grooves 10, 11, 12, 13 is defined by sine functions 24 through 27. Other sine functions 21, 22, 23 that form a set of equi-spaced sine functions with the sine functions 24 through 27 define the variation zones 14 through 16 of the second variation zone. The sine functions 22 to 24 also define the position of the variation grooves 17 to 19 of the third variation zone. The sine function 24 thus defines a variation groove 10 of the first variation zone and a variation groove 19 of the third variation zone. The sine functions 22, 23 define variation grooves 15, 16 in the second variation zone and variation grooves 17, 18 of the third variation zone.

Here, too, the amplitudes of directly adjacent sine functions differ slightly, so that immediately adjacent variation grooves 10 to 19 have a mutually different depth. Again, all sine functions 21 to 27 lie in the same zero line 20, 20 ', which lies outside the profile core. The profile core has a key midplane M, from which the zero line 20, 20 'is removed by the dimension n, which is greater than half the cross-sectional thickness S of the profile core.

The distance n of the zero line 20 from the profile core center plane M is greater than the profile core width S.

The fiction, contemporary profile variation defines the profiling of a profile core, which indicates the "positive profile shape" for the design of the cross-sectional profile of the flat key and the "negative profile shape" for the production of the cross-sectional profile of the key channels.

• Eine Profilvariation, die gekennzeichnet ist durch an den Flachschlüsseln bzw. den Schlüsselkanälen der zugehörigen Schließzylinder einer hierarchisch aufgebauten Schließanlage insbesondere General-Hauptschlüssel- oder ZentralschlossAnlage, wobei die Breitseiten 2, 3 der Schlüsselschäfte 1 nach einer schließanlagenspezifischen Codierungsprofilvorgabe erzeugte, in Längsrichtung des Schlüsselschaftes 1 verlaufende Variierungsnuten 10 bis 19 und die Schlüsselkanäle 8 der Schließzylinder dazu korrespondiere Variierungsrippen 10 bis 19 aufweisen, wobei die die Individualität und insbesondere die Schließhierarchie festlegende Codierungsprofilvorgabe durch eine Mehrzahl, die Randabstände von Scheiteln 10' bis 19' der Variierungsnuten 10 bis 19 von einem Längsrand 2', 3' der Schlüsselschaftbreitseite 2, 3, insbesondere vom Schlüsselrücken, beziehungsweise den Scheiteln der Variierungsrippen 10 bis 19 vom Rand 8' einer Breitseite des Schlüsselkanals 8 und die Scheiteltiefen der Variierungsnuten 10 bis 19 beziehungsweise der Scheitelhöhen der Variierungsrippen 10 bis 19 bestimmenden, in einer Querschnittsebene durch den Schlüsselschaft 1 beziehungsweise den Schlüsselkanal 8 erstreckende Sinusfunktionen 21 bis 27 festgelegt ist, deren Nulllinien 20, 20' parallel zur Schlüsselmittenebene M beziehungsweise Schlüsselkanalmittenebene und quer zur Längsrichtung des Schlüsselschaftes 1 beziehungsweise des Schlüsselkanals 8 verlaufen, und deren durch einen Amplitudenparameter A₁ bis A₇, einen Wellenlängenparameter L und einen Phasenparameter P₁ bis P₇ definierten Kurvenverlauf die Lage der Scheitel 10' bis 19' der Variierungsnuten 10 bis 19 beziehungsweise Variierungsrippen 10 bis 19 beschreibt, wobei die Variierungsrippen 10 bis 19 einen durch den Bereich der Spitzen des Kurvenverlaufs definierten Querschnitt aufweisen, wobei alle die Lage der Scheitel 10' bis 19' einer Breitseite 2, 3 definierenden Sinusfunktionen 20 bis 27 dieselbe Nulllinie 20, 20' besitzen, welche Nulllinie 20, 20' mit einem Abstand n, der größer ist als die halbe Materialstärke S des Schlüsselschaftes 1, von der Schlüsselschaftmittenebene M beziehungsweise der Schlüsselkanalmittenebene entfernt außerhalb der Querschnittsfläche des Schlüsselschaftes 1 beziehungsweise der Querschnittsfläche des Schlüsselkanals 8 liegt, und denselben Wellenlängenparameter L aufweisen.

Eine Profilvariation, die dadurch gekennzeichnet ist, dass die auf beiden Breitseiten 2, 3 des Schlüsselschaftes 1 angeordneten Variierungsnuten 10 bis 19', 32 bis 36 beziehungsweise alle auf beiden Seitenwänden des Schlüsselkanals 8 angeordneten Variierungsrippen 10 bis 19', 32 bis 36 ausschließlich von Sinusfunktionen 21 bis 29 definiert werden, wobei sämtliche Sinusfunktionen 21 bis 29 denselben Wellenlängenparameter L aufweisen, entlang von Nulllinien 20, 20' verlaufen, die von der Schlüsselmittenebene M gleich beabstandet sind und sich ausschließlich durch einen Phasenparameter P₁ bis P₇ und einem Amplitudenparameter A₁ bis A₇ voneinander unterscheiden.The above explanations serve to explain the inventions as a whole, which further develop the state of the art independently, at least by the following feature combinations, namely:

• A profile variation, which is characterized by the flat keys or the key channels of the associated lock cylinder of a hierarchically structured locking system, in particular General-Hauptschlüssel- or Zentralschlossanlage, wherein the broadsides 2, 3 of the key shanks 1 generated by a lock system specific coding profile specification, extending in the longitudinal direction of the key shank 1 Variierungsnuten 10 to 19 and the key channels 8 of the lock cylinder corresponding thereto have varying ribs 10 to 19, wherein the individuality and in particular the Schließhierarchie specifying Codierungsprofilvorgabe by a plurality, the edge distances of vertices 10 'to 19' of the Variierungsnuten 10 to 19 of a longitudinal edge ', 3' of the key shaft broad side 2, 3, in particular from the spine, or the vertexes of the V-ribs 10 to 19 from the edge 8 'of a broad side of the key channel 8 and the Vertex en the Variation grooves 10 to 19 or the zero points 20, 20 'parallel to the key center plane M or key channel center plane and transversely to the longitudinal direction of the key shank 1 and the key channel, respectively, determines the peak heights of the V-ribs 10 to 19 determining, in a cross-sectional plane through the key shank 1 and the keyway 8 8, and whose curve shape defined by an amplitude parameter A ₁ to A ₇ , a wavelength parameter L and a phase parameter P ₁ to P ₇ describes the position of the vertices 10 'to 19' of the variation grooves 10 to 19 and variation ribs 10 to 19, respectively V-ribs 10 to 19 have a cross-section defined by the region of the peaks of the curve, wherein all the sine functions 20 to 27 defining the position of the vertices 10 'to 19' of a broad side 2, 3 have the same zero line 20, 20 ', which zero line 20, 20 ' with a Distance n, which is greater than half the material thickness S of the key shank 1, away from the key shank center plane M and the key channel center plane outside the cross-sectional area of the key shank 1 and the cross-sectional area of the key channel 8, and have the same wavelength parameter L.

A profile variation, which is characterized in that arranged on both broad sides 2, 3 of the key shank 1 Variierungsnuten 10 to 19 ', 32 to 36 or arranged on both side walls of the key channel 8 varying ribs 10 to 19', 32 to 36 exclusively of sine functions 21 to 29 are defined, wherein all sine functions 21 to 29 have the same wavelength parameter L, along zero lines 20, 20 'which are equally spaced from the key midplane M and exclusively by a phase parameter P ₁ to P ₇ and an amplitude parameter A ₁ to A ₇ differ from each other.

A profile variation, which is characterized in that the cross-sectional contour of the vertex areas of the V-grooves of the key shank 1 and the V-grooves of the key channel 8 are defined exclusively by curve portions of the peaks of the sine functions 21 to 29. A profile variation, characterized in that the coding profile preset comprises at least a first variation zone with variation grooves / ribs 11-13 and a second variation zone with variation grooves / ribs 14-19, the first and second variation zones each extending longitudinally over the entire length Length of the key shaft 1 and key channel 8 extend and arranged in the transverse direction next to each other over a portion of the width of the key shank 1 and the height of the key channel 8 extend, wherein at least one sine function 23, 24, 25 at least one variation groove / rib 11, 12, 13 in the first variation zone and a second variation groove / rib 16, 17, 18 in the second variation zone.
A profile variation, characterized in that the variation grooves / ribs 11 to 13 of the first variation zone are used to distinguish a locking system from another locking system by the position of a variation groove / rib 11 to 13.
A profile variation characterized in that all of the variation grooves / ribs 11 to 19; 32 to 36 of a broad side 2, 3 defining sine functions 21 to 26; 27 to 29 have a maximum of two mutually different amplitude parameters A ₁ to A ₇ , wherein immediately adjacent sine functions 21 to 29 have mutually different amplitude parameters A ₁ to A ₇ .

A profile variation, which is characterized in that all sine functions 21 to 29 have at least and at most two mutually different amplitude parameters A ₁ to A ₇ , with directly adjacent sine functions 21 to 29 having mutually different amplitude parameters A ₁ to A ₇ .

A profile variation, which is characterized in that adjacent sine functions 21 to 29 differ by a common constant phase parameter P ₁ to P ₇ .

A profile variation characterized in that the variation grooves / ribs 14-19 of the second variation zone are used to encode a lock group GS1, GS2 within a locking system.

A profile variation, which is characterized in that the key shank 1 or the key channel 8 on a broad side 2 or side wall has the first variation zone and the second variation zone and on the opposite broad side 3 or keyway wall has a third variation zone, wherein the Variierungsnuten 32 to 36 of third variation zone of the curve of a plurality of sinusoidal functions 27 to 29 are defined and at least one sine function 27, 28, 29 defines the position and the peak depth of at least two Variierungsnuten 32 to 36.

A profile variation characterized in that the location of the variation grooves / ribs 11 to 19; 32 to 36 and whose vertex depth is defined by a coding profile specification according to one of the preceding claims. A closing device characterized in that the position of the variation grooves / ribs 11 to 19; 32 to 36 and whose vertex depth is defined by a coding profile specification according to one of the preceding claims.

A locking system characterized by a plurality of locking devices, the position and the apex depth of the variation grooves / ribs 11 to 19; 32 to 36 are defined exclusively by sine functions which have the same wavelength parameter L and whose zero lines 20, 20 'have the same distance n from the key midplane M or key channel center plane.

A method characterized in that the position and the vertex depth of the variation grooves / ribs 11 to 19; 32 to 36 is defined by a profile variation according to one of the preceding claims.

All disclosed features are essential to the invention (individually, but also in combination with one another). The disclosure of the associated / attached priority documents (copy of the prior application) is hereby also incorporated in full in the disclosure of the application, also for the purpose of including features of these documents in claims of the present application. The subclaims characterize with their features independent inventive developments of the prior art, in particular to make on the basis of these claims divisional applications. <B> LIST OF REFERENCES: </ b> 1 key shaft 17 ' apex region 2 broadside 17 " gap 2 ' edge 18 Variation groove / rib 3 broadside 18 ' apex region 3. ' edge 18 " gap 4 guide 19 Variation groove / -rippe 5 guide 19 ' apex region 6 guide 20 zero line 20 ' zero line 8th keyway 21 sine function 9 cylinder core 21 ' vertex 10 Variation groove / rib 22 sine function 11 Variation groove / rib 22 ' vertex 12 Variation groove / rib 23 sine function 13 Variation groove / rib 23 ' vertex 14 Variation groove / rib 24 sine function 14 ' apex region 24 ' vertex 14 " gap 25 sine function 15 Variation groove / rib 25 ' vertex 15 ' apex region 26 sine function 15 " gap 26 ' vertex 16 Variation groove / rib 27 sine function 16 ' apex region 27 ' vertex 16 " gap 28 sine function 17 Variation groove / -rippe 28 ' vertex 29 sine function A ₁ amplitude parameters 29 ' vertex A ₂ amplitude parameters 31 variation groove A ₃ amplitude parameters 32 variation groove 32 ' apex region A ₄ amplitude parameters 32 " gap A ₅ amplitude parameters 33 variation groove A ₆ amplitude parameters 33 ' apex region A ₇ amplitude parameters 33 " gap L Wavelength parameters 34 variation groove M Key midplane 34 ' apex region P ₁ phase parameters 34 " gap P ₂ phase parameters 35 variation groove P ₃ phase parameters 35 ' apex region P ₄ phase parameters 35 " gap P ₅ phase parameters 36 variation groove P ₆ phase parameters 36 ' apex region P ₇ phase parameters R Key spinal level S material thickness d Distance measure amplitude n Distance zero line x distance

Claims (13)

1. Lock system having lock cylinders and matching flat keys, wherein the broad sides (2, 3) of the key shanks (1) comprise variation grooves (10 to 19) which are produced according to a locking-system-specific coding profile template and extend in the longitudinal direction of the key shank (1), and the keyways (8) of the lock cylinders comprise variation ribs (10 to 19) which correspond to said variation grooves, wherein the coding profile templates which define the individuality and the locking hierarchy are defined by a plurality of sinusoidal functions (21 to 27) which extend in a cross-sectional plane through the key shank (1) or the keyway (8) and determine the edge distances of vertices (10' to 19') of the variation grooves (10 to 19) from a longitudinal edge (2', 3') of the key shank broad side (2, 3) or the vertices of the variation ribs (10 to 19) from the edge (8') of a broad side of the keyway (8) and the vertex depths of the variation grooves (10 to 19) or the vertex heights of the variation ribs (10 to 19), the zero lines (20, 20') of which sinusoidal functions extend in parallel with the key midplane (M) or keyway midplane and transversely to the longitudinal direction of the key shank (1) or the keyway (8), and the curve shape of which functions which is defined by an amplitude parameter (A₁ to A₇), a wavelength parameter (L) and a phase parameter (P₁ to P₇) describes the position of the vertex (10' to 19') of the variation grooves (10 to 19) or variation ribs (10 to 19), wherein the variation ribs (10 to 19) have a cross section which is defined by the region of the peaks of the curve shape, wherein all the sinusoidal functions (21 to 27) which define the position of the vertex (10' to 19') of a broad side (2, 3) have the same zero line (20, 20'), which zero line (20, 20') is at a distance (n) away from the key shank midplane (M) or the keyway midplane, outside of the cross-sectional surface of the key shank (1) or the cross-sectional surface of the keyway (8), that is greater than half the material thickness (S) of the key shank (1), and have the same wavelength parameter (L).
2. Lock system according to claim 1, characterised in that the variation grooves (10 to 19', 32 to 36) which are arranged on the two broad sides (2, 3) of the key shank (1) or all the variation ribs (10 to 19', 32 to 36) which are arranged on the two side walls of the keyway (8) are exclusively defined by sinusoidal functions (21 to 29), all of the sinusoidal functions (21 to 29) having the same wavelength parameter (L), extending along zero lines (20, 20') which are at equal distance from the key midplane (M), and differing from one another exclusively by a phase parameter (P₁ to P₇) and an amplitude parameter (A₁ to A₇).
3. Lock system according to either of the preceding claims, characterised in that the cross-sectional contour of the vertex regions of the variation grooves of the key shank (1) or the variation ribs of the keyway (8) is exclusively defined by curve portions of the peaks of the sinusoidal functions (21 to 29).
4. Lock system according to any of the preceding claims, characterised in that the coding profile template comprises at least a first variation region having variation grooves or variation ribs (11 to 13) and a second variation region having variation grooves or variation ribs (14 to 19), the first and second variation regions each extending over the entire length of the key shank (1) or keyway (8) in the longitudinal direction and extending over a portion of the width of the key shank (1) or the height of the keyway (8) so as to be arranged beside one another in the transverse direction of said key shank or keyway, at least one sinusoidal function (23, 24, 25) defining at least one variation groove or variation rib (11, 12, 13) in the first variation region and a second variation groove or variation rib (16, 17, 18) in the second variation region.
5. Lock system according to claim 4, characterised in that the variation grooves or variation ribs (11 to 13) of the first variation region are used in order to differentiate one lock system from another lock system by means of the position of a variation groove or variation rib (11 to 13).
6. Lock system according to either claim 4 or claim 5, characterised in that all the sinusoidal functions (21 to 26; 27 to 29) which define the variation grooves or variation ribs (11 to 19; 32 to 36) of a broad side (2, 3) have a maximum of two amplitude parameters (A₁ to A₇) which are different from one another, directly adjacent sinusoidal functions (21 to 29) having amplitude parameters (A₁ to A₇) which are different from one another.
7. Lock system according to any of the preceding claims, characterised in that all the sinusoidal functions (21 to 29) have at least and at most two amplitude parameters (A₁ to A₇) which are different from one another, directly adjacent sinusoidal functions (21 to 29) having amplitude parameters (A₁ to A₇) which are different from one another.
8. Lock system according to any of the preceding claims, characterised in that adjacent sinusoidal functions (21 to 29) differ by means of a common constant phase parameter (P₁ to P7).
9. Lock system according to any of the preceding claims when dependent on claim 4, characterised in that the variation grooves or variation ribs (14 to 19) of the second variation region are used in order to code a lock group (GS1, GS2) within a lock system.
10. Lock system according to any of the preceding claims when dependent on claim 4, characterised in that the key shank (1) or the keyway (8) comprises the first variation region and the second variation region on one broad side (2) or side wall and comprises on the opposite broad side (3) or keyway wall a third variation region, the variation grooves (32 to 36) of the third variation region being defined by the curve shape of a plurality of sinusoidal functions (27 to 29) and at least one sinusoidal function (27, 28, 29) defining the position and the vertex depth of at least two variation grooves (32 to 36).
11. Lock system according to any of the preceding claims, characterised in that in addition to the variation grooves or variation ribs (11 to 19; 32 to 36), guide grooves (4 to 6) or guide ribs (4 to 6) are provided, the vertex depth of the guide grooves (4 to 6) or vertex height of the guide ribs (4 to 6) being greater than the vertex depth or vertex height of the variation grooves or variation ribs (11 to 19; 32 to 36), such that the guide grooves or guide ribs (4 to 6) give the key shank (1) or the keyway (8) a paracentric cross-sectional profile.
12. Lock system according to any of the preceding claims, wherein the position and the vertex depth of the variation grooves or variation ribs (11 to 19; 32 to 36) are exclusively defined by sinusoidal functions which have the same wavelength parameter (L) and the zero lines (20, 20') of which are at the same distance (n) from the key midplane (M) or keyway midplane.
13. Method for manufacturing keys or lock cylinders for a lock system according to any of the preceding claims, characterised in that the position and the vertex depth of the variation grooves or variation ribs (11 to 19; 32 to 36) is defined by a profile variation in which the broad sides (2, 3) of the key shanks (1) comprise variation grooves (10 to 19) which are produced according to a locking-system-specific coding profile template and extend in the longitudinal direction of the key shank (1), and the keyways (8) of the lock cylinders comprise variation ribs (10 to 19) which correspond to said variation grooves, the coding profile templates which define the individuality and locking hierarchy being defined by a plurality of sinusoidal functions (21 to 27) which extend in a cross-sectional plane through the key shank (1) or the keyway (8) and determine the edge distances of vertices (10' to 19') of the variation grooves (10 to 19) from a longitudinal edge (2', 3') of the key shank broad side (2, 3) or the vertices of the variation ribs (10 to 19) from the edge (8') of a broad side of the keyway (8) and the vertex depths of the variation grooves (10 to 19) or the vertex heights of the variation ribs (10 to 19), the zero lines (20, 20') of which sinusoidal functions extend in parallel with the key midplane (M) or keyway midplane and transversely to the longitudinal direction of the key shank (1) or the keyway (8), and the curve shape of which functions which is defined by an amplitude parameter (A₁ to A₇), a wavelength parameter (L) and a phase parameter (P₁ to P₇) describes the position of the vertex (10' to 19') of the variation grooves (10 to 19) or variation ribs (10 to 19), the variation ribs (10 to 19) having a cross section which is defined by the region of the peaks of the curve shape, all the sinusoidal functions (21 to 27) which define the position of the vertex (10' to 19') of a broad side (2, 3) having the same zero line (20, 20'), which zero line (20, 20') is at a distance (n) away from the key shank midplane (M) or the keyway midplane, outside of the cross-sectional surface of the key shank (1) or the cross-sectional surface of the keyway (8), that is greater than half the material thickness (S) of the key shank (1), and having the same wavelength parameter (L).

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