RU2629737C2 - Preparation, protected key, closing system and method of manufacture - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: blank (R) contains two parallel side grooves (RB-SN) and a central protruding part (RB-M) between them. The side grooves extend at the upper level (N1) in the input area (RB-E) and in a recessed manner at the lower level (N2) in the first coded area (RB-P). The key (S) is made from the preform with the central groove (RB-MN) in the input region and the codepoint indentations (Cod-V) in the coded region on the central protruding portion (RB-M). The side grooves of the workpiece and the central groove of the key provide a new composite groove for the blocking code of the workpiece = RB-SN+RB-MN. The key in the cylinder (Z) corresponds to a special switching pin (RB-ZH) with lateral arms (RB-ZH-S), whose shape corresponds to the side grooves (SB-SN) and the central groove (RB-MN), so that by means of a special Pin, an additional blocking of the insert in the input area and additional rotation blocking in the coded area was formed.

EFFECT: significant improvement in the safety of the locking system and the prevention of counterfeits and unauthorized copies of the key.

18 cl, 30 dwg

Description

The invention relates to a workpiece, a secure key and to a locking system with secure keys and mating cylinders, as well as to a method for manufacturing a secure key from a workpiece according to the restrictive part of the independent claims.

In the field of technology related to locks, the main tasks are, on the one hand, to prevent or impede the illegal copying of keys using increasingly better means, and on the other hand, to increase the number of possible key combinations and, therefore, In this way, also increase the safety of locking systems.

A locking system with rotary security keys is known from EP 1185755 as the closest prior art which comprises a horizontal locking groove with a code locking depth on the nose of the key. In the extreme rear position of the coding, a pair of locking shift pins is located in the mating cylinder, including a standard coded pin (coded switching pin) and an opposite elongated standard locking pin, which prevents the key from being fully inserted with a locking groove that is not deep enough. This coding of the locking groove provides great possibilities for combinations. However, such a horizontal locking groove is still not too difficult to copy.

Thus, the object of the present invention is to provide a system with blanks, protected by keys and with mating cylinders, which significantly improves the performance of known systems, in particular the known locking code system according to EP 1185755, with additional protection functions, improved copy protection of keys and blanks by a form that is difficult to define and copy, and which, in addition, allows you to increase the number of possible combinations. In addition, it is possible to ensure reliable operation over a long period of operation and resistance to wear, as well as the possibility of efficient and inexpensive mass production. Moreover, thanks to the new form, there is also no need for an additional surface on the key with several rows of coding. Moreover, only one type of blanks can cover an entire market segment, and unauthorized copying of keys in key workshops can be prevented.

According to the invention, this problem is solved by means of a blank according to claim 1, by means of a secured key with an associated cylinder according to claim 9, by means of a locking system with protected keys and with associated cylinders according to claim 15, as well as by a method for manufacturing such keys from blanks under item 16 of the claims.

This is a new system of blocking code. The workpiece, for example, comes from the old system of blocking code and additionally contains new features, characteristics and functions by which the solution of these problems can be achieved, as shown and explained below using the drawings.

The locking code system known from EP 1185755, on the contrary, contains a locking system with secure rotary keys for locked objects with at least three coding rows / rows A1, A2 A3 of pins located on the flat sides of the key S, with mating cylinders Z with rows of pins of pairs of switching pins , which contain switching pins and opposite pins at the positions of a given drilling pattern, said keys comprising a horizontal locking groove BN that runs parallel to the x axis of the key from siq key to at least a first position P1 encoding a number of pins in the key, the blocking groove has a coded blocking depth B1, B2, B3. In the mating cylinder, at least in the most rear encoding position P1, a pair of switching pins is provided corresponding to the locking groove BN, with a standard switching pin as a locking pin BZ and with an elongated opposite pin as a locking opposite pin BG, so that the locking opposite pin BG rises on the cylinder body 10, if the locking groove is not deep enough, and thus, by means of the indicated pair of switching pins, Full insertion of a key with an insufficiently deep locking groove, and the switching locking pin BZ with the locking opposite pin BG after inserting the key in position P1 is also used as a coded pin with standard coded steps C1, C2, C3, C4 with respect to the rotation of the cylinder.

Important new features of the new blank blocking code system, among other things, are as follows. The new blank comprises two parallel side grooves and a central protruding portion between them. Side grooves extend in the input region at the upper level, and in the first coded region at the lower level. A key is made from a new blank by forming a central groove in the input region and encoding recesses on the central protruding part in the encoded region. The side grooves of the workpiece and the central key groove provide a new composite groove for the blocking code of the workpiece. The key corresponds to a new special switching pin with lateral shoulders in the cylinder, the shape of which corresponds to the side grooves and the central groove, so that with the help of a special switching pin an additional blocking of the insert is formed in the input region and an additional blocking of rotation in the coded region. This provides a significant improvement in the security of the locking system and prevents the manufacture of fakes and unauthorized copies of the key.

These new features cannot be obtained from the known system according to EP 1185755: its simple, horizontal locking groove BN corresponds to standard coded pins, while it is not recessed, and the locking switching pin BZ is a standard coded pin of a coding series. In addition, not disclosed: two lateral grooves recessed from the upper level to the lower level; a central protruding part on the workpiece and on the key with encoding recesses; special switch pin in the cylinder with additional side arms that correspond to the side grooves and the central groove on the key. In accordance with EP 1185755, it is not possible to provide additional blocking of the insert and additional blocking of rotation.

The invention according to the independent claims provides the possibility of various preferred additional embodiments with additional improvements and optimizations of the necessary characteristics in accordance with the required applications, for example with the following additional features: expansion of the groove RB; recessed central protruding part; RB coded steps, different from standard coded steps, and / or an additional auxiliary groove for rows of non-vertical pins.

The dependent claims relate to preferred further embodiments of the invention that provide additional benefits with respect to the security of the locking system, copy protection of workpieces, keys and cylinders, with regard to extended service life, efficient production and reliable service, as well as a large number combinations.

The invention is disclosed in more detail below using its embodiments and drawings.

Moreover, in the drawings:

FIG. 1 schematically shows a preform according to the invention, comprising two vertical side grooves and a central protruding part, as well as their levels,

FIG. 1a is a longitudinal section through the central plane of a series of pins;

FIG. 1b is a cross-section through the input region on the spout of the key,

FIG. 1c - in the encoded area of the first encoding position,

FIG. 2 shows a workpiece with inclined inner walls of the side grooves,

FIG. 2a - in cross section through the input region,

FIG. 2b - in the coded area,

FIG. 3 shows a key according to the invention with two side grooves and with a central groove in the region of the central protruding part,

FIG. 3a is a longitudinal section, with side grooves, a central protruding part and a central groove at the upper and lower levels,

FIG. 3b - in a cross section in the input region, with side grooves, a central groove and an associated special switching pin with side shoulders, a central part, as well as a coding cutter,

FIG. 3c - in the encoded area in the first encoding position,

FIG. 3d - in the second encoding position,

FIG. 3e — a standard coded pin of a number of coding and a standard coding depression,

FIG. 3f is an example with an extended RB groove and an extended special RB switch pin,

FIG. 4, a locking system according to the invention, with a key with side grooves, a central protruding part and a central groove and with a mating cylinder with an opposite pin and a special switching pin with side shoulders,

FIG. 4a is a longitudinal section,

FIG. 4b is a cross section in the input region,

FIG. 5-8 in cross section, a key with a special switching pin and the opposite pin of the mating cylinder,

FIG. 5 - in the input area with the insert lock function,

FIG. 6 - in the coded area with the rotation lock function,

FIG. 7 - in the coded area with a standard coded pin number of coding,

FIG. 8 - in the first encoding position, a fake key and a special cylinder switching pin,

FIG. 9-11 show on the key various coded steps and groove shapes in the input region and in the coded region,

FIG. 9 - standard coded steps on the previous key with the previous locking groove,

FIG. 10 - standard coded steps on a new key with new combined RB grooves,

FIG. 11 shows new coded RB steps,

FIG. 12 shows an example of an extended groove RB with a shift pin RB,

FIG. 13a shows, in cross section, an example of a workpiece with an inclined coding row with side grooves, a central protruding part and an auxiliary groove,

FIG. 13b shows a top view of the workpiece, as well as milling cutters for manufacturing side grooves, a central protruding portion and an auxiliary groove,

FIG. 13c shows a perspective view of a workpiece,

FIG. 14a shows a perspective view of a coded key made from said blank,

FIG. 14b shows a cross-sectional view of a key with an associated special switching pin and a standard switching pin of a coding series,

FIG. 15 shows key views from above and in perspective view with different encodings,

FIG. 16 illustrates a method for manufacturing a workpiece and key using milling cutters at various stages,

FIG. 17-19 show an additional example of a workpiece and key with a particularly wide central groove,

FIG. 17 shows, in cross section, a key with an RB groove in the cylinder with mating shift pins,

FIG. 18 shows, in cross section, a counterfeit key at the same location in the cylinder with the switching pin RB,

FIG. 19a shows a workpiece in perspective view with a recessed central protruding part,

FIG. 19b shows a key with five encoding rows and with encodings.

In FIG. 1a-c schematically shows the preform R according to the invention with two vertical side grooves RB-SN and with a central protruding part RB-M, which first extend at the upper level N1 and then recessedly at the lower level N2 parallel to the x axis of the key. In this case, the position number 7 denotes the specified surface, and 5 - the Central plane of the workpiece and key.

FIG. 1a shows a workpiece in longitudinal section along the central plane of coding row A / row of pins with encoded steps C1-C4 for standard coded pins Cod-ZH of this encoding row A. The lateral grooves of RB-SN in the input region Rb-E on the spout of the key extend at the upper level N1 and at the lower level N2 in the encoded region P-RB of the first encoding positions P1, P2, which, for example, correspond to the encoding positions L11 and R5 of the right or left drilling patterns. The central protruding portion of the RB-M can extend continuously at a height of the key surface 7 or also in a recessed manner.

In the simplest case, the central protruding part of the RB-M extends continuously into the RB-M (1) and is formed only by creating recessed side grooves (for example, by means of a disk cutter). Depending on the application, the central protruding part on the workpiece can also be recessed in the coded region P-RB: RB-M (2). Through this, simple coding and efficient key production can be achieved. Key manufacturing methods are described, for example, with reference to FIG. 13b and 16.

FIG. 1b shows a cross-section of the input region RB-E on the spout of the key with the upper level N1 of the side grooves.

FIG. 1c shows, in the RB-P encoded region, a deeper level N2 of recessed side grooves, as well as a recessed (to a lesser extent) central protruding portion of RB-M (2).

FIG. 1c also shows the width of the entire groove RB, the lateral grooves, and the central protruding portion: bg, bn, and bm (see FIG. 3d).

The preform R according to the invention for the manufacture of a security key S with at least two coding rows / rows Ai of pins on the flat sides of a key for a mating cylinder Z with switching pins ZH and opposite pins GZH contains two parallel side grooves RB-SN and a central protruding part RB- M between the indicated side grooves, which are formed parallel to the x axis of the key and symmetrically with respect to the central plane of the coding row / row A of the pins. These side grooves RB-SN extend in the input region RB-E on the spout of the key at the upper level N1, and in the encoded region RB-P, the first encoding positions P1, P2 at the lower level N2. The lateral grooves of the RB-SN are made with a suitable shape so as to correspond to the additional lateral shoulders of the RB-ZH-S of the conjugated special RB-ZH switching pin and the elongated opposite cylinder pin of the RB-GZH so that an insert lock can be provided in the input region of the RB-E and additional rotation blocking in the RB-P coded region using the RB-SN side grooves and the RB-ZH-S side arms.

FIG. 2a, 2b shows a workpiece R with inclined inner walls 11 of the side grooves RB-SN, which have an inclination angle Wm to the central plane of the coding row A (pin plane). This tilt angle Wm may, for example, be 10 ° -40 ° and allow other lateral grooves and optimization options to be adapted to the application.

In FIG. 2a shows the corresponding shape of the side grooves of the RB-SN in the inlet region of the RB-E, and in FIG. 2b in the P-RB encoded region.

On the workpiece, there are only RB-SN side grooves and a central protruding part of the RB-M. The composite groove of the blocking blank code = RB-SN + RB-MN is formed on the key using coding and a coding cutter by making the central groove of RB-MN.

FIG. 3a-d show the key S according to the invention with two side grooves RB-SN and with a central groove RB-MN, which is made on the central protruding part of the RB-M or in its region. In this example, in the encoded area P-RB, the encoding position P1 is encoded with the encoded step C1, and the encoding position P2 is encoded with the encoded step C2.

FIG. 3a shows a longitudinal section through a key S.

FIG. 3d shows a cross-section in the input region RB-E with a compound groove RB = RM-MN + RB-SN. It corresponds to a paired special RB-ZH switch pin in the cylinder with additional RB-ZH-S side arms corresponding to the RB-SH side grooves of key S.

The drawing also shows an encoding cutter 14 for encoding standard Ci encodings (as well as RB encodings), which corresponds to the form of standard encoded Cod-ZH pins. Thus, the (illegally) manufactured locking groove BN will be locked in the key input region by the lateral arms RB-ZH-S of the switching pin RB (with an additional locking surface Fs, see FIGS. 5 and 10).

In FIG. 3c shows a cross-section in the encoded region P-RB at the encoding position P1, in this case with the deepest encoding C1, in which the side grooves of the RB-SN are located at the N2 level.

In FIG. 3d shows the C2 encoding in the P2 encoding position with the central groove RB-MN on the central protruding part of the RB-M.

The width bn of the side grooves of the RB-SN, the width bm of the central protruding portion of the RB-M correspond to each other. Together, the total width of the grooves is: bg = bm + 2bn.

Width bn and width bm may lie in the range bn = 20-33%, bm = 33-60% of the total width bg of the groove.

Preferably, the width bm of the central protruding portion is at least 33% of the full width bg of the groove, and the width bn of the side grooves is at least 20% of the full width bg of the groove.

In FIG. 3e shows a standard coded Cod-ZH pin and a standard coded Cod-V coding pin in row A coding.

The security key S according to the invention with at least two coding rows / rows Ai of pins on the flat sides of the key for the mating cylinder Z with switching pins ZH and opposite pins GZH contains two parallel side grooves RB-SN and a central groove RB-MN in row A of the coding between the side grooves that are formed parallel to the x axis of the key and symmetrically with respect to the central plane of the coding row / row A of the pins, and in the region of the central groove RB-MN in the coded region P-RB, recesses are formed to irovki in the first positions P1, P2 encoding. The key preferably contains at least three or more rows of Ai encodings. These lateral grooves RB-SN in the input region RB-E on the spout of the key extend at the upper level N1, and in the encoded region P-RB, the first encoding positions P1, P2 are recessed to the lower level N2. Through this, additional combinations are created in the coded area.

The lateral grooves of the RB-SN are formed with the corresponding shape in order to fit the additional lateral shoulders of the RB-ZH-S of the conjugate special switch pin RB-ZH and the elongated opposite pin of the cylinder RB-GZH, so that with the help of the side grooves of the RB-SN key and with the help of the side arms of the RB-ZH-S of the RB-ZH switching pin, an additional blocking of the insert in the input region of the RB-E or an additional rotation blocking in the coded region of the RB-P could be provided. In this case, an additional central groove RB-MN in the input region RB-E and encodings P1, P2 in the encoded region P-RB can be created in the region of the central protruding part of the RB-M. A special switching pin RB-ZH should be located at the extreme rear position of row A of the pins in the cylinder, corresponding to the first key encoding positions P1, P2.

In FIG. 3f shows an additional example of a key S (2) with an extension of the groove RB: RB-N (2) compared to standard encodings of the encoding series A. The width bg (2) of the RB groove (with the side grooves of RB-SN and the central protruding part of RB-M or the central groove of RB-MN) on both sides is greater than the width bcv of the recesses Cod-V of the coding of row A coding by bb: bg ( 2) = bcv + 2bb (see Figs. 12 and 17). With the help of this extension, further improvements in such characteristics as functional reliability, anti-counterfeiting and service life can be achieved, in particular for cylindrical switching pins and codings.

In FIG. 4 a and b show a longitudinal and transverse section of a locking system according to the invention with a key S with side grooves RB-SN, a recessed central protruding part RB-M (2) and a central groove RB-MN, as well as a mating cylinder Z with an opposite elongated pin RB-GZH and RB-ZH special shift pin with RB-ZH-S side arms. These switch pins in the input region of the RB-E provide an insert lock for the fake keys: first by means of the central part of the RB-ZH-M and further by the side arms of the RB-ZH-S of the switch pin RB-ZH. In the case of counterfeit keys that have an insufficiently deep central groove or side grooves, the elongated opposite pin RB-GZH rises on the cylinder body 10 and thus prevents the complete insertion of the counterfeit key.

Similarly, with inappropriate encoding forms and the encoding depth of the fake key in the P-RB encoded area, rotation blocking is realized by the fact that the side arms RB-ZH-S and / or the central part RB-M of the special switching pin RB-ZH rise in the wrong recess encoding, and thus the RB-ZH switch pin, extends beyond the shift line 9 and thus prevents key rotation.

The locking system according to the invention with secure keys S having at least two coding rows / rows Ai of pins on the flat sides of the key and mating cylinders Z with changeover pins ZH and opposite pins GZH, contains keys S with two parallel side grooves RB-MN and a central groove RB-MN in row A of the encoding, which are formed parallel to the x axis of the key and symmetrically to the central plane of row A of the pins, with recesses of the encoding in the region of the central groove of RB-MN in the first positions P1, P2 of the encoding. These lateral grooves RB-SN in the input region RB-E on the spout of the key extend at the upper level N1, and in the encoded region RB-P of the first encoding positions P1, P2, they are recessed to the lower level N2. The mating cylinders Z in their rear position P1, P2 of the coding of the cylinder contain a special switch pin RB-ZH with additional side arms RB-ZH-S.

These lateral shoulders of the RB-ZH-S of the RB-ZH switching pin are shaped so that they correspond to the side grooves of the RB-SN key, while in the first encoding position P1, P2, the length Is from the RB-ZH switching pin and the opposite RB- pin GZH to the lateral arm RB-ZH-S corresponds to the distance ds from the cylinder body 10 to the lateral groove RB-SN, and the length lz of the pin RB-ZH to the lateral arm RB-ZH-S corresponds to the distance dz from the shift line 9 to the lateral groove RB -SN with tolerance to, so that with the side grooves of the RB-SN key and the side shoulders of the RB-ZH-S With this special RB-ZH switch pin, an additional blocking of the insert in the input region of the RB-E and an additional blocking of rotation in the encoded region of the RB-P can be realized by the fact that in the case of missing side grooves of the RB-SN or grooves that are not deep enough, the opposite RB-GZH pin rises on the cylinder body 10 (insert lock), and in the input region, the special RB-ZH switch pin extends beyond the shift line 9 in the coded area (rotation lock).

FIG. 5-8, for example, further illustrate the functions of the new workpiece blocking code system, with a cross-sectional view showing a key, as well as a special RB-ZH switch pin and an opposite RB-GZH pin of the mating cylinder.

FIG. 5 illustrates an input lock function in an input area of an RB-E. The pair of RB-ZH + RB-GZH switch pins has a length ls to the side shoulder of the RB-ZH-S, with ds denoting the distance from the cylinder body 10 to the side grooves of the RB-SN. The length Is plus a small tolerance region (component, for example, 0.05-0.1 mm) corresponds to the distance ds and thus allows the key to be inserted, while in the case of a fake key with missing or not deep enough combined grooves RB-MN and RB-SN of the pair of RB-ZH + RB-GZH switching pins rises on the cylinder body 10 and, thus, prevents the insertion of a fake key (see Fig. 4).

FIG. 6 illustrates a rotation lock function in the RB-P encoded area. The key can be rotated with correctly encoded grooves RB-MN and RB-SN, in which the length lz of the mating switch pin RB-ZH to the shoulder RB-ZH-S is also not greater than the distance dz from the shift line 9 to the lateral grooves RB- SN at level N2. Otherwise, there is no turning, as shown in FIG. 8.

FIG. 7 in the encoding position P1, P2 shows the (previous) standard coded pin Cod-ZH of the row A of the pins instead of the special switch pin RB-ZH, which may also correspond to the shift line 9. However, according to the invention, a special RB-ZH switching pin is used, and not a standard coded pin of this row A of pins, as in the previous blocking code in accordance with EP 1 185 755.

FIG. 8 in the first encoding position P1, P2 shows a fake (fake) key Sb in which, in the standard encoding depression Cod-V, the coded depth C1 in the RB-MN region could be accurately copied (and suitable for the previous standard encoded Cod-ZH pin in in accordance with Fig. 7). However, a special RB-ZH switch pin would rise with the side shoulders of the RB-ZH-S in the recess of the Cod-V encoding, and thus would go beyond the shift line 9 (blocked by distance a) and prevent rotation. This additional rotation blocking by the shifting pins RB-ZH on the encoded steps in the encoded region RB-P of the wrong key Sb is also shown in FIG. 9 and 10.

FIG. Figures 9-11 show on the key various coded steps Ci and groove shapes in the input region and in the first encoding positions, as well as a comparison of the previous locking grooves (BN) with the new grooves RB.

Compared to the blocking surface of the previous blocking groove (BN) in the input region, the blocking surface of the new compound groove RB of the blocking blank code = RB-MN + RB-SN is the same size, and the blocking effect is wider and less deep. By this, a large coded area (for example, a larger number of coded steps) is provided up to the deepest coded step C1 for encoding the positions P1, P2. Or, the blocking surface and the blocking effect of the new RB groove are respectively large in the inlet region of the RB-E at the same depth as in the previous blocking groove (BN). The distance dN between the level N1 and the level N2 must be at least one coded step dC. Preferably, N2 corresponds to the deepest coded step, namely C1 in FIG. 10 and 11.

FIG. 9 shows the standard coded steps C1-C4 on the previous or fake key Sb with the previous locking groove BN with a depth B2, which is below the coded step C3. Thus, there are only two steps left for encoding the positions P1, P2 of the coding: C1 and C2.

In FIG. 10 shows a new groove RB with a blocking surface Fs of the same size as in FIG. 9 and with less depth = at the height of the coded step C3. Thus, there remain three steps C1, C2, C3 for encoding P1, P2.

In FIG. 11 shows a new groove RB with the same depth (B2) as in the previous locking groove BN in FIG. 9, and with a significantly larger blocking surface Fs and a blocking effect. In addition, in this case, the coded steps C2 * and C3 * RB can be set a little deeper than the standard coded steps C2, C3, so in this case, three steps are also possible for encoding the positions P1, P2: C1, C2 *, C3 *. The coded steps Ci * RB in the coded area can be located higher or deeper than the standard coded steps Ci from row A of the coding for standard Cod-ZH switching pins with correspondingly different lengths of the associated RB-ZH special switching pin.

Preferably, at least one coded step Ci * RB may not correspond to a standard coded step Ci.

The number of possible combinations and anti-counterfeiting can thus be significantly increased with the new RB grooves.

The previous or counterfeit key Sb with the previous locking groove bn in the input region RB-E and with the previous standard encoding recesses (made using the encoding cutter 14) by means of a special switch pin RB-ZH (corresponding to the groove RB)

- will be locked against insertion in the input region of the RB-E (thanks to the additional locking surfaces Fs),

- and will be blocked against rotation in the P1, P2 encoding positions in the coded area on all coded steps C1, C2, C3,

even if the depths in the input region and at the encoding positions would be the same as with the correct key S with the groove RB and the encodings RB, as shown in FIG. 6, 8-10.

Such a fake or unauthorized copy of the key (Sb), which would be copied in the workshop for the manufacture of keys using an encoding cutter, with the same depths in the input area and in the encoding positions P1, P2, as in the original key, would be faced with lock insertion and lock rotation.

In FIG. 12 shows an additional example of an extended RB groove with an RB switch pin compared to standard Cod-ZH coded pins and Cod-V recesses of the coding of row A coding with cylindrical switch pins. In addition to the extension bb, the distance ba is shown at which the RB-ZH RB switching pin extends beyond the Cod-V encoding recesses on both sides: brz (2) = bcv + 2ba (see also FIGS. 3e, 3f and 18).

In FIG. 13 and 14 show an additional example of a preform and a key according to the invention, in which case the row A of the pins has an inclination angle Wa with respect to the z direction of 15 °.

In FIG. 13a, b and c show various views of the blank R with new recessed side grooves RB-SN and a central protruding part RB-M, as well as with an additional auxiliary groove RB-nn.

In FIG. 13a shows in cross section the angle of inclination Wa of the row A of the pins, the side grooves of the RB-SN, the central protruding part of the RB-M and the auxiliary groove of the RB-nn in the input region RB-E, as well as in the encoded region RB-P.

In FIG. 13b shows a top view of the workpiece rotated 15 ° (thus, in the direction of the plane A of the pins).

The same drawing shows a preferable effective workpiece manufacturing, in which first it is possible to produce a recessed central protruding part of the RB-M (2) in the RB-P coded region using a cylindrical cutter 15, and then the possibility of manufacturing side grooves of the RB-SN in the input region RB-E at level N1 and in the coded area RB-P at level N2 with cutter 16. In this example, with perpendicular inner walls 11 of the side grooves of RB-SN, for example, with a cylindrical cutter 16, and for inclined inner their walls 11 with a cone cutter (see, an example in Fig. 2a, b).

In FIG. 13c shows a perspective view of the workpiece.

Preferably, in the workpiece or key with an inclined plane A of pins with an angle of inclination Wa of Wa> 0 on the inner side, an additional auxiliary groove RB-NN can adjoin the lateral groove RB-SN, while said auxiliary groove forms a supporting surface perpendicular to the coding plane / plane A pins. At the same time, for example, it is possible to enter the zero switching pin or this entry can be optimized. This null shift pin contains only the upper part with a width of b0 without the lower coded part, as shown in FIG. 14b.

Using the method according to the invention, for manufacturing the key S from the blank R, a central groove RB-MN in the input region RB-E and encoding recesses Cod-V in the first encoding positions P1, P2 in the encoded region RB-P are made by encoding on the blank R by deleting material from the central protruding portion of the RB-M. Thus, the lateral grooves of the RB-SN are first made on the workpiece at the upper level N1 and in a recessed manner to the lower level N2 with the central protruding part of the RB-M.

Then, the second part RB-MN of the combined groove RB = RB-SN + RB-MN is manufactured with the specified coding and the coding is made on the central protruding part of the RB-M key. This provides enhanced copy protection and additional security features.

A blank with an unrecessed central protruding portion of the RB-M can, for example, be made in a simple manner by manufacturing the recessed side grooves of the RB-SN by means of a disk cutter.

Preferably, the recessed central protruding portion RB-M (2) can be first fabricated on the workpiece in the RB-P encoded region by a first cutter, and then the RB-SN side grooves in the RB-E input region at the upper level N1 in the RB-P encoded region at the lower level N2 by means of a second cutter.

In FIG. 14a, b show an encoded key S with four coded rows A1-A4 made from said blank.

FIG. 14a shows a perspective view of a key with an encoded step C1 at the encoding position P1 and an encoded step C2 at the encoding position P2 in the encoded region P-RB, which are located in the central protruding portion of the RB-M.

FIG. 14b shows a cross-sectional view of a key with an associated RB-ZH special switch pin in an encoding position in the RB-P encoded area and a standard Cod-ZH encoded pin, as well as a standard encoding depression Cod-V of the same encoding row A (i.e., from P3).

In FIG. 15, an additional example of a key with a groove RB extending on both sides of bb and having a width of bg (2) = bcv + 2bb, with coded steps Ci * RB, which differ from standard coded steps, in this case in position P1, is shown at the top and in a perspective view; : C1 *, in P2: C2 *, and in P3: C2.

In FIG. 16 shows the various steps of a method for manufacturing a workpiece and a key with an inclined plane A of the pins using mills.

In the first step a, the recessed central protruding portion RB-MN (2) is milled in the coded region RB-P, in step b, the auxiliary groove RB-nn is milled using the first cutter 15, and then, in step c, two side grooves RB- are milled SN using the second milling cutter 16, and finally, in step d, the central groove RB-MN and the encoding recesses are milled in the encoded region P-RB (P1, P2), as well as in other encoding positions P3, P4, etc. standard encodings of series A encoding with cutter 14 for encoding.

The central protruding portion of the RB-M (2) is preferably recessed at most to the height of the upper coded step — in this case at most up to C2 *. (In Fig. 10 at most to C3, and in Fig. 11 at most to C3 *).

On Fig-19-19 shows an additional embodiment of the workpiece and key according to the invention with a vertical row A of pins in the cylinder. In this case, in particular, a wide central groove RB-MN with a width of bmn is provided, for example, for especially good direction of the shift pins through the central groove with minimal wear.

FIG. 17 shows a key in cross section with a groove RB in the cylinder and with the mating shift pins of the coding row A1. The special RB-ZH switch pin is in the deepest encoding position, for example P1: C1, so that the correct key can be rotated along shift line 9. The expansion of the RB groove compared to standard Cod-V encodings of the same A1 encoding series is: 2bb = bg (2) -bcv.

In FIG. 18 is a cross-sectional view of a counterfeit key Sb at the same location in the cylinder with the switching pin RB, wherein the counterfeit key Sb has standard Cod-V coding instead of the extended grooves RB RB-SN and RB-MN. In this case, the switch pin RB is already raised on the key surface 7 and, thus, provides a lock against rotation along the shift line 9. This is the case even if, in this case, the width brz of the RB-ZH switching pin is only slightly larger (ba) than the width bcv of the standard encoding depression Cd-V by 2ba = brz-bcv. This is because the springs of the opposite pin (see 4a) cannot force the RB-ZH switch pin into the Cod-V recess, which is too narrow. In contrast to the coding series A1 with the cylindrical switching pins RB-ZH and Cod-ZH in FIG. 17, the key in this case also has an additional row of A2 encodings with conical switching pins and recesses Cod-V2.

FIG. 19a, b shows in perspective view a blank R and a key S with (at least) five encoding rows A1-A5 and with encodings.

FIG. 19a shows a preform R with side grooves RB-SN and a central protruding portion RB-M in the input region RB-E and in a recessed manner in the coded region RB-P for encoding positions P1, P2.

FIG. 19b shows an encoded key S made from said blank, wherein the RB shape is included in the vertical row A1 of the pins (Wa = 0 °). The key in the P-RB encoded area in this case includes the following encodings on the central protruding part of the RB-M:

- coded step C2 in position P1 encoding and

- coded step C1 in position P2 encoding.

In the framework of this description, the following notation is used:

x key axis

x, y, z directions in space

R blank, key blank

S key

Sb previous key,

Z cylinder

Pi encoding position

Ri, Li position of the right and left encoding

A number of coding, a number of pins (central plane)

Ci, Ci *, coded steps, coding

RB blocking code (blocking function) of the workpiece

RB-SN RB side grooves

RB-M central protruding part RB

RB-MN center groove on S

RB-N compound groove RB = RB-SN + RB-MN or RB-SN + RB-M

RB-nn auxiliary groove

Cod-V encoding recess

Cod-ZH coded pin (standard), coded switching pin

Cod-ZH-M central part of the coded pin (part of the trace)

RB-ZH special switch pin RB

RB-GZH counter pin RB

RB-ZH + RB-GZH pair of changeover pins RB

RB-ZH-S side shoulder ZH

RB-ZH-M central part ZH (part of the encoding trace)

Fs additional blocking surface

RB-E input area

RB-P coded area (P1, P2 ...) forward position

Is length from RB-ZH + RB-GZH to RB-ZH-S

ds distance from 10 to RB-SN

Iz length from RB-ZH to RB-ZH-S

to tolerance area

dz distance from 9 to RB-SN

dN distance N1 to N2

a distance notch

dC one coded step

bm width RB-M

bn width RB-SN

bg width RB-N = RB-SN + RB-M

bnn width rb-nn

bg (1) = bcv

bg (2) = bcv + 2bb

brz width RB-ZH

bcv width cod-v

bcz width Cod-ZH

bb extension RB-N: bg (2) = bcv + 2bb

ba brz-bcv = 2ba

bmn width RB-MN

b0 upper width ZH

Wm tilt angle 11

Wa angle A

5 central plane S

7 surface S

9 shift line in Ζ

10 cylinder body

11 inner walls of RB-SN

14 cutter for encoding

15, 16 mill for blank

Claims (38)

1. A blank (R) for manufacturing a security key with at least two coding rows / rows (Ai) of pins on the flat sides of said key for a mating cylinder (Z) with shift pins (ZH) and with opposite pins (GZH) of the locking system with locking insert, acting in the vertical direction to the axis (x) of the key, characterized - two parallel side grooves (RB-SN) and a central protruding part (RB-M) between the specified side grooves, which are formed parallel to the axis (x) of the key and symmetrically with respect to the central plane of the coding row / row (A) of the pins, - while the side grooves (RB-SN) and the Central protruding part (RB-M) pass from the spout of the key to the encoded area (RB-P) of the first encoding positions (P1, P2), - wherein said side grooves (RB-SN) extend in the input region (RB-E) on the key nose at the upper level (N1), and in the encoded region (RB-P) of the first positions (P1, P2), the encodings pass in a recessed manner to lower level (N2), - while the lateral grooves (RB-SN) are made with the appropriate shape in order to match the additional lateral shoulders (RB-ZH-S) of the conjugated axially symmetric special switch pin (RB-ZH) and the elongated opposite pin (RB-GZH) in the rearmost position (P1, P2) of the cylinder encoding, so that - using the side grooves (RB-SN) of the workpiece and the lateral shoulders (RB-ZH-S) of the conjugated special switching pin, it was possible to additionally lock the insert, acting in the vertical direction to the axis (x) of the key, in the input region (RB-E) and additional rotation lock in the coded area (RB-P). 2. The preform according to claim 1, characterized in that the central protruding part (RB-M) is recessed to the lower level (RB-M (2)) in the coded area (RB-P). 3. The workpiece according to claim 1 or 2, characterized in that the total width bg (2) of the side grooves (RB-SN) and the central protruding part (RB-M) on both sides is larger than the width bcv of the recesses (Cod-V) encodings of series (A) of encoding by bb: bg (2) = bcv + 2 bb. 4. The workpiece according to claim 1 or 2, characterized in that the width bm of the central protruding part (RB-M) is at least 33% of the total width bg of the groove. 5. The workpiece according to claim 1 or 2, characterized in that the width bn of the side groove (RB-SN) is at least 20% of the total width bg of the groove. 6. A workpiece according to claim 1 or 2, characterized in that the inner walls (11) of the lateral grooves (RB-SN) are inclined at an angle Wm to the plane (A) of the pins. 7. The workpiece according to claim 6, characterized in that the angle Wm is in the range from 10 ° to 40 °. 8. A blank according to claim 1 or 2, characterized in that an additional auxiliary groove (RB-nn) adjoins the lateral groove (RB-SN) on the inner side with the inclined plane (A) of the pins with an inclination angle Wa> 0, this specified auxiliary groove forms a supporting surface perpendicular to the coding plane / plane (A) of the pins. 9. Security key with at least two coding rows / rows (Ai) of pins on the flat sides of said key for a mating cylinder (Z) with shift pins (ZH) and opposite pins (GZH) of the locking system with a vertical locking interlock to the axis (x) of the key, characterized - two parallel side grooves (RB-SN), a central groove (RB-MN) and a central protruding part (RB-M) between the specified side grooves, which are formed parallel to the axis (x) of the key and symmetrically with respect to the central plane of the coding series / row (A) of pins, - wherein the side grooves (RB-SN), the central groove (RB-MN) and the central protruding part (RB-M) extend from the spout of the key to the coded area (RB-P) of the first encoding positions (P1, P2), - in this case, in the first positions (P1, P2) of the encoding in the region of the central groove (RB-MN) in the encoded region (P-RB), encoding depressions are formed, - moreover, the lateral grooves (RB-SN) pass in the input region (RB-E) on the spout of the key at the upper level (N1), and in the encoded region (RB-P) of the first positions (P1, P2), the encodings are recessed in the lower level (N2) - while the lateral grooves (RB-SN) are made with the appropriate shape in order to match the additional lateral shoulders (RB-ZH-S) of the conjugate special axially symmetric switching pin (RB-ZH) and the elongated opposite pin (RB-GZH) in the rearmost position (P1, P2) of the cylinder encoding, so that - using the lateral grooves (RB-SN) of the specified key and the lateral shoulders (RB-ZH-S) of the conjugated special switching pin (RB-ZH), it was possible to additionally lock the insert, acting in the vertical direction to the axis (x) of the key, in the input area (RB-E) and additional rotation lock in the coded area (RB-P). 10. The key according to claim 9, characterized in that the encoding recesses of the first positions (P1, P2) of the encoding are formed on the recessed central protruding part (RB-M (2)). 11. The key according to claim 9 or 10, characterized in that the total width bg (2) of the side grooves (RB-SN) and the central groove (RB-MN) on both sides is larger than the width bcv of the recesses (Cod-V) of the encoding row (A) of the coding by the value of bb: bg (2) = bcv + 2 bb. 12. The key according to claim 9 or 10, characterized in that an additional auxiliary groove (RB-nn) adjoins the lateral groove (RB-SN) on the inner side with the inclined plane (A) of the pins with a slope angle Wa> 0, this specified auxiliary groove forms a supporting surface perpendicular to the plane (A) of the pins. 13. The key according to claim 9 or 10, characterized in that in the coded area the coded steps (Ci *) (RB) are located higher or deeper than the standard coded steps (Ci) of the coding row (A) with correspondingly different lengths of the mating switching pin (RB-ZH). 14. The key according to claim 9 or 10, characterized in that the distance dN between the upper level (N1) and the lower level (N2) is at least one coded step (dC). 15. Locking system with secure keys (S) with at least two coding rows / rows (Ai) of pins on the flat sides of the key and with mating cylinders (Z) with changeover pins (ZH) and opposite pins (GZH), as well as locking insert, acting in the vertical direction to the axis (x) of the key, characterized - keys (S) with two parallel side grooves (RB-SN) and a central groove (RB-MN), which are formed parallel to the axis (x) of the key and symmetrically with respect to the central plane of the row (A) of pins, with encoding recesses in the area the Central groove (RB-MN) in the first positions (P1, P2) encoding, - wherein the side grooves (RB-SN), the central groove (RB-MN) or the central protruding part (RB-M) extend from the key nose to the coded area (RB-P) of the first encoding positions (P1, P2), - while these side grooves (RB-SN) are in the input region (RB-E) on the spout of the key at the upper level (N1), and in the encoded region (RB-P) of the first positions (P1, P2), the encodings are recessed at the lower level (N2), - and with mating cylinders (Z) with an axially symmetric special switch pin (RB-ZH) in the extremely rear position (P1, P2) of the cylinder coding, said special switch pin containing additional side arms (RB-ZH-S), - while these side shoulders (RB-ZH-S) of a special switching pin (RB-ZH) are made in such a way that they correspond to the side grooves (RB-SN) of the key, - moreover, in the input region (RB-E), the length Is from the special switching pin (RB-ZH) and the elongated opposite pin (RB-GZH) to the side shoulder (RB-ZH-S) corresponds to the distance ds from the cylinder body (10) to side grooves (RB-SN) and - in the first position (P1, P2) of the coding, the length lz of the special switching pin (RB-ZH) to the side shoulder (RB-ZH-S) corresponds to the distance dz from the shift line (9) to the side groove (RB-SN) with the region ( to) tolerance so that - using the lateral grooves (RB-SN) of the key and the lateral shoulders (RB-ZH-S) of the conjugated special switching pin (RB-ZH), it was possible to additionally lock the insert, acting in the vertical direction to the axis (x) of the key, in the input region (RB-E) and additional rotation lock in the coded area (RB-P). 16. A method of manufacturing a key (S) according to any one of paragraphs. 9-14 from the workpiece (R) according to any one of paragraphs. 1-8 by encoding, characterized in that on the workpiece (R), a central groove (RB-MN) is made in the input region (RB-E) and encoding recesses (Cod-V) are made in the first encoding position (P1, P2) of the encoding (RB-P) ) by removing material in the central protruding portion (RB-M). 17. The method according to p. 16, characterized in that the recessed central protruding part (RB-M (2)) in the coded area (RB-P) is first made on the workpiece using the first cutter, and then side grooves (RB-SN ) at the upper level (N1) in the input region (RB-E) and in the coded region (RB-P) at the lower level (N2) using a second cutter. 18. The method according to p. 17, characterized in that on the workpiece with an inclined plane (A) of the pin with an angle of inclination Wa Wa> 0, a recessed central protruding part (RB-M (2)) and an additional auxiliary groove (RB-nn ) using the first cutter.

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