JP2010513753A - Locking system with security reversible key - Google Patents

Abstract

  The locking system comprises a security reversible key (S) and an assigned cylinder (Z). The key and further its key blank (S ′) is provided with a concave recess (10) in the key tip which interacts with the convex structure (20) of the movable counterpart (21) in the cylinder, so that the key When fully inserted, the concave recess (10) is positioned flat on the convex structure (20) of the corresponding part, and the key without this concave concave part is locked out by the convex structure of the corresponding part ( a), thus preventing complete insertion and enabling the locking or switching function by the corresponding part. The concave recess (10) starting from the key tip is first provided with a first slope (N1) with respect to the key axis, and subsequently with a second slope (N2) with respect to the key axis. Is greater than the first slope. These concave recesses (10) that are difficult to replicate are already provided in the key blank. This provides key blank protection and increases the security and permutation capability of the locking system.

Description

  The present invention relates to a locking system having a security reversible key according to the preamble of claim 1 and an assigned cylinder, a corresponding key blank and security reversible key according to the preamble of claim 11, and a method of manufacturing them according to the preamble of claim 10. .

  In the locking technology, on the one hand, to make unauthorized duplication of keys more difficult and to prevent unauthorized duplication of keys by better means, and on the other hand, the number of possible permutations of keys is increased, thereby increasing the There are fundamental and persistent issues to strengthen security.

  This type of key with an insertion prevention system as a further security element is known from US Pat. No. 5,438,857. Here, the key has an additional control surface, which prevents erroneous key insertion by means of an assigned control pin at the inlet of the cylinder. This control pin is longer than the coding pin and extends beyond the center bisection plane of the key. The control surface at the key tip is designed as an inclined leading surface that rises. The control surface also extends beyond the central plane of the key and lifts the control pin, thereby pushing the control pin aside. Thus, this control pin prevents the insertion of keys that do not have the correct control surface. These control surfaces may already be applied to the key blank, which may allow protection of the key blank. However, while these tilted control surfaces serve as further obstacles, they are still not difficult to replicate. It is therefore very important to create much higher copy protection by new methods.

  On the other hand, a key system with a security reversible key is known from WO 01/77466, which comprises a horizontal blocking groove (BN) with a coded blocking depth at the tip of the key. In the assigned cylinder, in the last coding position, there is a pair of blocking tumbler pins with extended blocking counterpins, which pair of blocking tumbler pins has a key with insufficient blocking groove depth. Prevent complete insertion. This blocking groove coding results in a higher permutation capability. However, this type of horizontal blocking groove is still not difficult to replicate.

  Therefore, the purpose of the invention presented here is to create a system with security reversible keys and assigned cylinders, which overcomes the disadvantages of known systems and already exists in key blanks. And with improved duplication protection for keys and key blanks that have shapes that are very difficult to define and duplicate contours, the system further allows for higher permutation capabilities for any application.

  In addition, it should be achieved that the function is reliable and less susceptible to wear during long-term use, and that efficient and economical continuous production should be possible.

This object is achieved by a locking system having a security reversible key according to claim 1 and an assigned cylinder, by a key blank and security reversible key having an assigned cylinder according to claim 11 and such a key according to claim 10. According to the present invention. The concave recess at the tip of the key thereby interacts with the convex structure of the corresponding part in the assigned cylinder, so that when the key is fully inserted, the concave recess is flat on the convex structure of the corresponding part. Key blanks or keys that are not located in this recess and do not have a concave recess are locked out by the convex structure of the counterpart, i.e. prevent complete insertion. These concave recesses are difficult to define contours, and correspondingly, it is very difficult to replicate these concave recesses and convex structures in the cylinder without permission. The concave recesses may be realized in many different shape variants, so that it is possible to achieve a correspondingly much higher permutation capability.

  The dependent claims relate to advantageous further developments of the invention, with regard to security of the locking system, i.e. security against duplication of key blanks, keys and cylinders, with regard to long service life and low wear, and to the number of permutations and applications. It allows for further advantages with regard to more.

It is a figure of the convex structure of the reversible key blank or key which has a concave recessed part in the front-end | tip part of a key, and the corresponding part in a cylinder according to this invention. It is a figure of the example of the concave-shaped recessed part which has a rounded area. It is a figure of the example of the concave-shaped recessed part which has a rounded area. It is a figure of the example of the concave-shaped recessed part which has a rounded area. It is a figure of the example of the concave-shaped recessed part which has a rounded area. FIG. 6 is an example of a concave recess having a further straight section. For example, FIG. 3a is a diagram of the production milling cutter of FIG. For example, FIG. 3a is a diagram of the production milling cutter of FIG. It is a figure of preparation of the extended recessed recessed part. FIG. 6 is a diagram of the arrangement of concave recesses at various portions of the cross section of the key. FIG. 6 is a diagram of the arrangement of concave recesses at various portions of the cross section of the key. It is a figure of the concave recessed part of the asymmetrical front-end | tip part of a key. It is a figure of the concave recessed part of the asymmetrical front-end | tip part of a key. It is a figure of the concave recessed part of the asymmetrical front-end | tip part of a key. FIG. 6 is a diagram of the allocation of different variants of concave recesses to different market areas and application parts. FIG. 6 is a view of a concave recess having an introduction area for a tumbler pin and a blocking groove. FIG. 6 is a view of a concave recess having an introduction area for a tumbler pin and a blocking groove. FIG. 6 is a view of a concave recess having an introduction area for a tumbler pin and a blocking groove. It is a figure of the double cylinder lock which has the concave recessed part of a key, and the convex structure in a cylinder. FIG. 4 is a view of a concave recess made with a milling cutter whose milling axis is parallel to the y-axis. FIG. 4 is a view of a concave recess made with a milling cutter whose milling axis is parallel to the y-axis. FIG. 4 is a view of a concave recess made with a milling cutter whose milling axis is parallel to the y-axis. FIG. 4 is a view of a concave recess made with a milling cutter whose milling axis is parallel to the y-axis. FIG. 6 is a view of a concave recess made by a milling cutter having an angle with respect to the y-axis. FIG. 4 is a diagram of a further example of a milling profile and a concave recess made with a milling cutter. FIG. 6 is a view of a concave recess made by a milling cutter whose milling axis is parallel to the z-axis. FIG. 6 is a view of a concave recess made by a milling cutter whose milling axis is parallel to the z-axis. FIG. 6 is a view of a concave recess made by a milling cutter whose milling axis is parallel to the z-axis.

Hereinafter, the present invention will be described based on examples and drawings.
FIG. 1 shows a security reversible key S or key blank S ′ having at least two coding pin rows Ai on the flat side, assigned cylinders Za, Zb (shown in FIG. 10), and tumbler pins 3 (eg FIG. 6). And a locking system 9 according to the invention, with the locking or switching function 9 being performed by rotating the cylinder. The key tip 11 includes a concave recess 10 that interacts with the convex structures 20a, 20b of the movable counterparts 21a, 21b, so that when the key is fully inserted, the concave recess 10 The key blank or key which is flatly positioned on the shaped structures 20a, 20b and which does not have this recessed recess 10 is locked out by the raised structure 20 of the corresponding part, thereby preventing complete insertion and 21 enables the coupling element to be moved in the x-direction to the locked or switched position.

  As further shown in FIGS. 2a-2d, the concave recess 10 extending from the key tip in the direction of the key axis x initially comprises a first slope N1 relative to the key axis, followed by the key axis. With a second slope N2 that is greater than the first slope (N2> N1).

  FIGS. 1 and 10 show, as an example, a double cylinder Za, Zb, and by inserting a key with the correct concave recess 10, a counterpart 21a, here designed as a movable coupling element 22a, It slides into the locking or switching element 23 with positive engagement. Thereafter, by rotating the fully inserted key S, the locking or switching element 23 rotates, thereby causing the locking or switching function 9 to operate, for example, locking the lock or electrical contacts in such a known manner. Is executed.

  As shown in FIGS. 1 and 10, the corresponding portion 21 may also include a concave pedestal area 25 corresponding to the convex shape of the key tip portion 11 adjacent to the concave concave portion 10 in addition to the convex structure 20. Good. As a result, the pedestal area can be expanded.

  The concave recess 10 in the key tip 11 according to the present invention and the assigned convex structure 20 in the cylinder will be further described with reference to FIGS.

  FIGS. 2a to 2d for a key S or key blank S ′ having a central plane 5 in the cross section in the x direction start from a slight first slope N1 with respect to the x axis and change to a much larger slope N2. Various shapes of concave recesses 10.1 to 10.3 with rounded concave areas 13 are shown. The convex structures 20.1 to 20.3 of the corresponding parts 21.1 to 21.3 in the cylinder are assigned to these concave recesses, so that when the key is fully inserted, the concave recesses 10 become convex structures 20 Will be located. Conversely, a key blank or key having an introduction area 35 at the key tip and not having a concave recess 10 strikes the convex structure 20 and is thereby blocked or stopped at the lockout distance a, thereby , The key cannot be inserted further (completely), and thus the cylinder cannot be rotated.

  These concave recesses 10 can be made with a milling cutter 40, the milling axis 41.1 of this milling mill 40 being here perpendicular to the x-axis extending parallel to the y-axis. By doing so, the milling machine 40 is moved on the milling track 42. Therefore, the radius R of the milling cutter also corresponds to the radius R of the rounded concave area 13 of the concave concave portion 10.

  FIG. 2a shows a concave recess 10.1 having a small radius R1 of, for example, 1 mm when the key thickness d = 2.5 mm. This corresponds to a ratio of R1 / d = 0.4. Here, the first and second inclinations are N1 = 0 ° and N2 = 90 °, and the difference in inclination is N2−N1 = 90 °. The concave recess 10.1 can be arranged only outside the introduction area 7 of the tumbler pin 3. This is because the inclination N in the introduction area is at most about 45 ° (see FIG. 6), or should correspond to the introduction angle Nz of the tumbler pin 3 at the key tip 11. For this purpose, an introduction surface 31 may be formed in the introduction area of the tumbler pins (FIG. 2d). Here, the maximum inclination N2 can also be limited by the blocking groove BN (see FIG. 7c). Here, P1 indicates the next coding position having coding steps C1 to C4. The movement 42 of the milling tool extends parallel to the x-axis, where the lockout path or lockout distance a of the key without the concave recess 10.1 is, for example, a = 1.1 mm, which is in the cylinder Provided by the assigned convex structure 20.1 of the counterpart 21.1.

  FIG. 2b shows a milling tool 40.1 for making a recess 10.1 with a milling axis 41.1 extending parallel to the z-axis. In the yz plane, the milling cutter 40.1 has a width b1 corresponding to the width b1 of the recess 10 here, and b1 is larger than the depth t1 of the recess 10. The recess 10 has a cross-sectional surface area F1 and a length l1 in the x direction.

  FIG. 2c shows an example with a larger radius R2, for example R2 = 2 mm, and correspondingly with a ratio R2 / d = 0.8. Here, the milling movement 42 is first performed parallel to the x-axis and then performed in a 45 ° direction. The concave recess 10.2 with the inclination N1 = 0 ° and N2 = 45 ° is rounded over the area 13 having an inclination of N = 0 ° to 45 °. This recess 10.2 may be arranged in the introduction area 7 when the maximum slope N of the recess is preferably 45 ° at maximum. Here, the lockout distance is smaller, for example only a = 0.7 mm.

  The concave recess 10 is designed in such a way that it does not reach the closest coding position P1 at all or as much as possible, so that the coding step Ci is not omitted. On the other hand, the lockout distance a is large enough to perform a safe and large-scale lockout of the wrong key. For this purpose, the lockout distance a may be in the range of 0.5 to 1.5 mm, preferably 0.8 to 1.2 mm, or 0.25 to 0.6, preferably 0.3. A ratio a / d of ˜0.5 may be provided. Preferably, the concave recess 10 is cut out relatively deep (t1) and may extend close to the center bisection plane 5, so that the minimum distance e to the center bisection plane is preferably that of the key. At most, the thickness d is 10 to 15%. However, the distance e may also be 0% of d (FIG. 7).

  FIG. 2d shows a concave recess 10.3 having a small radius R1, which first extends parallel to the x-axis with a first slope of N1 = 0 ° and then N = 0. The introduction surface 31 for the tumbler pin 3 is formed with a rounded area 13 of ˜45 ° and finally with a second slope N2 = 45 °. Here, the lockout distance is a = 1.1 mm, and is formed by the convex structure 20.3 of the corresponding portion 21.3. 2a and 2d represent an advantageous variant over FIG. 2c with a larger lockout distance a.

  The shape of the concave recess 10 preferably achieves a safe lockout of the wrong key, but does not reach the coding step Ci of the closest coding position P1, making it difficult to define and duplicate the contour. It is selected in some manner. For this purpose, the first slope N1 of the concave recess 10 with respect to the axis of the key can be between 0 ° and 10 °. That is, the first slope N1 can be very small. The second slope N2 of the concave recess can be at least 40 °. That is, the second slope N2 may be selected to be preferably large. The difference N2-N1 between the first slope and the second slope should be at least 30 °.

  This can be achieved by a rounded area 13 which is relatively small with respect to the key thickness d and has a tight radius R. In this case, the concave recess 10 can comprise a rounded area with a radius of at most 2 mm in the direction of the key axis x. The concave recess can comprise a rounded area having a radius R that is smaller than the thickness d of the key. In this, the ratio R / d of the radius to the key thickness may be between 0.4 and 0.8.

  3a, 3b, 4 and 5 are rounded, made with milling 40.11 having a conical section with milling axis 41.11 and milling movement 42 parallel to the x-axis. A further example 10.11 with a rounded area (13) and a conical or straight area and an assigned convex structure 20.11 of the corresponding part 21.11 in the cylinder are shown. In the cross-sectional view of FIG. 3a, the concave recess 10.11 comprises a straight section having slopes N1 and N2. Preferably, such a concave recess 10 in the cross section in the x direction may also comprise at least one inclined linear section or comprises at least three different linear and rounded sections or areas. It may be.

  FIG. 3a shows a concave recess 10.11 that can be made with a milling cutter 40.11, which has, for example, a straight section with a first slope of N1 = 10 ° and a radius R Transition to a straight section with a subsequent rounding and a second slope N2 of about 60 °. In the case of a key S without this concave recess 10.11, the assigned convex structure 20.11 provides a lockout over a distance a.

  FIG. 3b shows the production milling 40.11 in the xz plane. FIG. 4 shows a production milling 40.11 in the yz plane, in which the milling axis 41.11 is located on the surface of the keys S, S ′. The produced recess 10.11 is located within the semicircle 40.11 in FIG.

  FIG. 5 shows how a milling recess 40.12 with a milling axis 41.12 in the x direction can cause an expansion of the concave recess in the y direction. For this purpose, the milling cutter is first moved in the direction of the x-axis, as in FIG. 3a, and then moved in parallel in the y-direction by a distance 42. This results in a corresponding expansion of the recess 10, which can form, for example, an introduction surface 31 for the coding tumbler pin 3 having a corresponding slope.

  In order to achieve all the objects and safe functions of the present invention, the concave recess 10 according to the present invention is relatively large and compact, i.e. relatively wide, deep and short with respect to the size of the key. And it is optimally positioned and molded so that the space at the tip of the key is very limited. That is, the space for the high-performance key coding function is not reduced in order to satisfy further security functions.

  For this purpose, the length l1, the width b1 and the depth t1 in the x direction and the surface area F1 of the cross section of the concave recess 10 may preferably have the following relative sizes.

-The width b1 of the concave recess 10 is at least 20 to 40% larger than the width b2 of the tumbler pin 3-The width b1 of the concave recess 10 is at least 50% of its length l1-The cross-sectional surface area F1 of the concave recess 10 is At least 6%, preferably at least 8% to 10% of the cross-sectional surface area F of the key-The cross-sectional surface area F1 of the concave recess 10 is larger than the cross-sectional surface area F2 of the tumbler pin 3, preferably at least 20-50%- The width b1 of the concave recess 10 is preferably at least 25-30% of the key width.

This corresponds to the example described in the drawing.
The locking system according to the invention may comprise a key and a key blank having two or several different variants of the concave recess 10i of the key tip 11 and the corresponding convex structure 20i of the counterpart 21 in the cylinder. . This can further increase the permutation capability and even the replication security of the locking system. In that case, these modifications may be provided with different shapes of the concave recess 10i.

  6a, 6b show different partial sections 12.1, 12.2, of the key section 12 relative to the position of the coding tumbler pin 3 with the tumbler pin axis 4 located in the plane of the coding pin row Ai and the coding pin row Ai. An example of the arrangement of the concave recesses 10.1, 10.2 in 12.3 is schematically shown.

  FIG. 6a shows an example with three coding pin rows A1, A2, A3, the planes of A1 and A2 are located parallel to the z axis and the plane of A3 is located parallel to the y axis. Here, the concave recess 10.1 in the partial section 12.1 is outside the introduction surface 31 of the tumbler pin 3 of the coding pin row Ai, and the concave recess 10.2 in the partial section 12.3 is the introduction of the coding pin row A1. For this reason, the maximum inclination N in the introduction area 7 of the tumbler pin is at most 45 ° or should correspond to Nz.

  As a further variant, the locking system can also comprise, for example, two equal concave recesses 10.2, which are located on different sides, ie the left or right of the key (from above with respect to the key tip). See: l = left, r = right), where the cross-section 12.2 is arranged on the right and / or the cross-section 12.3 symmetrically on the left. Thereby, for example, a key having a recess 10.2 in section 12.2 for the cylinder of the first device and a key having a recess 10.2 in section 12.3 for the second device, And for both devices a key with a recess 10.2 in cross-section 12.2 and cross-section 12.3 can be made, and the assigned convex structure 20.2 in both cross-sections 12.2 and 12.3 The same applies to the third device having the cylinder provided.

  FIG. 6b shows an example with slanted coding or tumbler pin rows A1-A5 with angles Wa1, Wa2 between the tumbler pin axes 4 or between the coding planes A1, A2 and the z-axis. Here too, the concave recess 10.1 is located in the partial section 12.1 outside the introduction area 7 of the tumbler pin. One concave recess 10.2 in the partial section 12.2 is partly located in the introduction area 7 of the coding pin row A2. In this manner, it is possible to make a locking system with different variants of the concave recesses formed in the different partial sections 12.1, 12.2 of the key section 12.

  However, the recesses 10.1 located opposite to each other at the key center 6 in the cross section 12.1 are in a very disadvantageous position. This is because the depth t1 is very limited here.

  The further example of FIGS. 7 to 14 shows an advantageous recess 10. This recess 10 is located near the center 6 of the key and is designed to be particularly large with respect to the cross-sectional surface area F1, the width b1 and the depth t1, or the minimum distance e from the center bisection plane 5 of the key. Furthermore, here the recess 10 is optimally positioned in such a way as to comprise a coding pin row A, which is adapted in terms of shape to the tumbler pin 3 of this coding pin row (32 in FIG. 7).

For this reason, the concave recess 10 is
-May comprise an introduction area 7 of the coding pin row A;
-Or may have an introduction area 7, 31 for the tumbler pin 3,
The concave recess 10 may also comprise an area with a larger slope N2.2 by the introduction area 7, 31, preferably at least 55 °;
The inclination N of the concave recess 10 in the introduction areas 7, 31 of the coding pin row A can correspond to the introduction angle Nz of the tumbler pins 3, or can be at most 45 °,
-Or the concave recess 10 may comprise an introduction surface 31 made of a coding milling (which can be produced particularly efficiently),
-Alternatively, the concave recess 10 may further comprise a horizontal blocking groove milling BN (this limits the maximum slope N2.1 (Fig. 7c) in the introduction areas 7, 31 to the value Nz).

  The concave recess 10 may comprise a coding pin array A having a narrow tumbler pin 3.1, whose width b2 is preferably at most 50-55% of the key thickness d. Therefore, the surface area F2 of these tumbler pins 3.1 is correspondingly small (FIGS. 7a, 7b and 9c). Thereby, the ratio F1 / F2 is correspondingly larger (surface area of F1 = 10), so that the slope N2.2 of the concave recess 10 adjacent to the introduction areas 7, 31 can be made larger. , N2.2 can be, for example, between 60 ° and 90 ° (FIG. 7c).

  These advantageous variants of the concave recess 10 with the tumbler pin array A are further explained in FIGS.

  FIGS. 7a and 7b are introduced into the key tip 11 in that the cross-sectional plane 36 of the introduction surface forms an angle W2 of, for example, 10 ° with respect to the central bisection plane 5 of the key S or key blank S ′. The example which has the asymmetrical structure of the surface 35 is shown. Preferably, this angle W2 may be in the range between 5 ° and 20 °. In this manner, it is possible to make a locking system with increased permutation capability, for example with five variants having angles W2 = 0 °, + 10 °, −10 °, + 20 °, −20 °. Furthermore, for example, by the asymmetric shape of the introduction surface 35 according to FIG. 7, more space can be created for forming the concave recess 10 up to the center bisection plane 5. This allows a large surface area F1 of the concave recess 10 in the cross section 12.

FIG. 6 shows, for example, a symmetrical structure of the introduction surface 35 at the key tip, where the angle W2 = 0 ° to the cross-sectional plane 36. 7a and 7b show a key section 12 with tumbler pins 3 in coding pin rows A1 to A5 and coding pin row A1. Here, the concave recess 10.8 shaped approximately symmetrically with the coding pin array A1 may be made here with a milling cutter 40.8, the contour of which corresponds to the shape of the concave recess 10.8 and the plane y The milling axis 41.2 located at −z comprises an angle W1 with respect to the y-axis. If the same milling 40.8 is used with a milling axis 41.1 parallel to the y-axis, a different shape variant corresponding to the concave recess is produced. In order to achieve essentially the same shape 10.8 of the concave recess by the milling axis 41.1 (W1 = 0 °), a correspondingly different contour shape of the milling cutter 40 must be used. Let's go. Here, the introduction surface 32 in the introduction area of the coding pin row A1 is also produced with a milling cutter 40.8, which is adapted to the shape of the tumbler pin 3.

  The introduction area for the tumbler pins 3, 3.1 consists of an introduction surface 7 having a width of b7 (FIGS. 9a, 9b, 9c), so that the introduction angle for the tumbler pins in the concave recess 10 is Nowhere exceeds the value Nz. However, this type of introduction surface 7, 31 is also made with a first milling cutter 40, followed by (dispersively) a second coding milling in the introduction area 7, 31 after producing the concave recess 10 in the key blank, It may be made in a key blank so that it does not exceed the desired maximum slope N, for example 42 ° to 45 °.

  FIG. 7 c shows a further possibility not to exceed the permissible inclination N of the concave recess 10 in the tumbler pin introduction areas 7, 31. Here, the concave recess 10.8 may further include a horizontal blocking groove BN. This type of blocking groove is described in WO 01/77466. As a result, further coding in the form of a blocking code can be realized. FIG. 7c shows a cross-section in perspective view with a cross-sectional plane corresponding to the coding plane A1, with a key tip 11 similar to the example of FIG. 9 having a concave recess 10.9. In the sectional plane A1 (in the introduction areas 7, 31) this recess 10.8 is rounded with a first slope of N1 = 0 °, followed by a maximum second slope of N2.1 = Nz. A concave area 13 having a tinge is provided. Immediately followed is a horizontal blocking groove BN made, for example, by a coding milling cutter. On the outside of the introduction surface 7, the concave recess 10.8 is provided with a larger second slope here, for example N2.2 = 60 °. That is, here the second slope can preferably be significantly greater than 45 °.

  FIG. 8 shows the assignment of different variants of the concave recess 10 of the key S and key blank S ′ to different market areas and application areas Mi. In this manner, it is possible to define a clear division into independent market areas and application areas Mi by means of a locking system with several different variants of the concave recess 10i. These may be geographically different market areas, for example for individual countries or representatives, or technically different systems, for example with different permutation capabilities for different applications and with different security requirements In some cases, it is a technically different application field. This partitioning into market areas and applications by different variants of the concave recess 10i may be realized in a similar manner, as described in WO 01/77466 for further blocking groove coding.

  However, further coding permutations (Cod) can be made with these different variants of the concave recess 10i. Thus, in a system with 40 different variants, for example, 20 different market areas can be clearly distinguished, and 20 new coding permutations can be created.

  The locking system according to the present invention also allows the key and cylinder to be manufactured in two steps, and in the first, more difficult step, the concave recess 10 at the key tip and the convex structure 20 at the counterpart of the cylinder. In a simpler second step, manufactured centrally by the system owner, further coding of the keys and assembly of the cylinders with the counterparts may be performed in a distributed manner.

Different modifications of the concave recess 10i can be produced as follows.
-Fabrication mill 40, for example mill 40.8 in FIG. 7, mill 40.9 in FIG.
Different profile shapes of the milling cutter 40.6 in FIG. 13 and the milling cutter 40.7 in FIG. 14 -and different positions of the milling axis 41, for example the axial positions 41.1 and 41.2 in FIGS. Position 41.3 in FIG. 12, position 41.4 in FIG. 14, position 41.11 in FIG. 3, and position 41.12 in FIG. These milling axes are
41.1 in the yz plane, parallel to the y-axis
41.2 in the yz plane, having an angle W1 with respect to the y-axis,
41.3 in the xy plane with W3 relative to the y-axis,
41.4 in the xz plane parallel to the z axis,
41.11 in the xz plane, parallel to the x-axis.

  The milling shaft 41 may be perpendicular to the x-axis with the angle W1 being 0 ° to 20 ° with respect to the y-axis, or the angle W3 being 0 ° to 20 ° with respect to the y-axis. In some cases, it is perpendicular to the z-axis, and in some cases the angle W4 is 0 ° to 20 ° with respect to the z-axis, and is perpendicular to the x-axis.

  -This produces, for example, modified examples of differently shaped concave recesses 10, ie, 10.1 to 10.13 of FIGS. 2, 3, 5, 7, 9, and 11-14. .

-Furthermore, it is possible to provide a concave recess 10i on the left or right side of the key, i.e. on different parts 12.1, 12.2, 12.3 (Fig. 6) of l or r;
The cross-sectional plane 36 of the introduction surface 35 of the key tip can form a different angle W2 with respect to the central bisection plane 5;

  Thus, the combination of these factors, for example, by two different milling shapes 40, three different positions of the milling shaft 41, three different cross-section portions 12 i, and three different angles W 2 of the introduction surface 35. Specifically, different modifications of a total of 2 × 3 × 3 × 3 = 54 concave recesses 10i can be produced.

  This also means that defining and duplicating the contours of that particular variant is very difficult.

  Figures 9a, 9b, 9c show in further three examples a concave recess 10.9 with a horizontal blocking groove BN, similar to the example of Figure 7c. The blocking groove BN is located in the introduction areas 7 and 31 of the tumbler pin 3, and its coding plane A1 comprises an angle Wa1 of, for example, 15 ° with respect to the z axis, as in the example of FIGS. 7a and 7b.

  FIG. 10 shows cylinders Za, Zb for a key S or key blank S ′ having a concave recess 10 at the tip 11 of the key, and a convex structure 20 to which corresponding portions 21a, 21b in the cylinders Za, Zb are assigned. 1 shows a double cylinder lock 1 having As also shown in FIG. 1, these counterparts are arranged on movable coupling elements 22a, 22b for actuating the locking or switching element 23. These counterparts 21 may also be designed as separate parts, e.g. extension elements, or may be designed as inserts and utilized in modular systems. It is also possible to move the coupling element 22 to a locking or switching position in a semi-cylinder with a counterpart 21.

FIGS. 11 a to 11 d show a key S or key blank S ′ having a concave recess 10.9 made with a milling cutter 40.9. Here, the axis 41.1 of the milling cutter is parallel to the y-axis. If the same milling 40.9 having an axial position 41.2 with an angle W1 with respect to the y-axis is utilized, a new variant with a different shape of the concave recess 10 is correspondingly produced. The angle W1 may be 10 ° to 20 °, for example.

  FIG. 12 shows a further variant having a concave recess 10.5. This concave recess 10.5 is the milling cutter 40.9 of FIG. 11 but is located on the xy plane and has a milling axis 41.3 with an angle W3 of eg 10 ° to 20 ° with respect to the y-axis. Made with milling 40.9.

  FIG. 13 shows a further variant of a concave recess 10.6 made with a milling cutter 40.6. This has a different contour shape but with the same position of the milling axis 41.1 parallel to the y-axis as in the example of FIG. 11b.

  FIGS. 14a, 14b, 14c show further variations of a concave recess 10.7 made with a milling cutter 40.7 in three views, the axis 41.4 of this milling cutter 40.7 being in the xz plane. And extends perpendicular to the y-axis and parallel to the z-axis. The views of FIGS. 14b and 14c show a concave recess partly located in the introduction area 7, 31 of the coding pin row Ai and forming an introduction surface 31 therewith an inclination N2 with respect to the x axis of at most 45 °. 10.7. This can be made, for example, with a milling track 42 that extends first in a direction of 0 ° with respect to the x-axis and then in a direction of 45 ° with respect to the x-axis. This example comprises a strong, characteristic, deep concave recess 10.7 that extends to approximately the center bisection plane 5 with a minimum distance e of a few percent of the key thickness d. This results in a safe lockout of the wrong key. Also, the different milling axes may comprise an angle W4 of, for example, 5 ° to 20 ° with respect to the z-axis.

  The following names are used within the frame of this description.

  S key, S ′ key blank, Z cylinder, x key axis, direction in x, y, z space, Pi coding position, Ai coding pin sequence, Ci coding step, Codi coding permutation, N 10 slope, N1 1st Slope, N2 second slope, angle of introduction of Nz3, radius of R10 or 40, surface area of F key section 12, b key width, d key thickness, a lockout distance, e 10 to 5 Minimum distance, F1 10 cross section surface area, b1 10 width, t1 10 depth, l1 10 x length, F2 (in 10 with C1) 3 cross section surface area, b2 3 width, b7 The width of the tip of the coding pin, the angle of W1 (in the yz plane) 41, the angle of W2 35, the angle of W3 (in the xy plane) 41, 2. W4 (in the yz plane) 41 angle, 4 angle relative to Waz direction, left side of lS, right side of rS, BN blocking groove, Mi market area, 1 double cylinder lock, 3 tumbler pins, 1 Narrow tumbler pin, 4 3 axes, 5 S center bisection plane, 6 Key center (xz plane), 7 Introduction area or introduction surface for tumbler pins, 9 Locking or switching function, 10, 10i concave recesses, 10.1 to 10.13 10 different shapes, 11 key tips, 12 key cross sections, 12.1, 12.2 12 parts, 13 10 rounded concave areas, 17 horizontal Introduction surface, 20, 20i convex structure, counterpart at 21Z, 22 movable coupling element, 23 locking or switching element, 21 concave pedestal area adjacent to 25 20, 31 3 introduction surface at 10, introduction surface like the shape of 32 3, 35 introduction surface, chamfered key tip, cross section plane of 36 35, milling for 40 10, 41 milling axis, 41.1 y− Parallel to the y-axis in the z-plane, 41.2 W1 to the y-axis in the yz plane, 41.3 to W3 to the y-axis in the xy plane, in the 41.4 xz-plane Parallel to the z-axis, 41.5 Parallel to the x-axis in the xz plane, 42 milling trajectory.

Claims (31)

A locking system having a security reversible key (S) having at least two coding pin rows (Ai) on a flat side and an assigned cylinder (Z) having a tumbler pin (3), the rotating cylinder By doing so, the locking or switching function (9) is executed,
Characterized by a concave recess (10) in the key tip (11) interacting with the convex structure (20) of the movable counterpart (21) in the cylinder,
As a result, when the key is completely inserted, the concave concave portion (10) comes to be positioned flat on the convex structure (20) of the corresponding portion (21),
The key without this concave recess is locked out by the convex structure of the corresponding part (a), thereby preventing complete insertion and the concave recess (10) starting from the key tip is In the direction of the key axis (x), it is first provided with a first inclination (N1) with respect to the key axis, followed by a second inclination (N2) with respect to the key axis, the second inclination being Larger than the first slope, the concave recess (10) comprises a rounded concave area (13) in the x direction,
Locking system in which the coupling element (22) can be moved to the locking or switching position in the x direction by means of the counterpart (21).   At least two different modifications of the concave recesses (10.1, 10.2) of the key tip (11) and the corresponding convex structures (20.1, 10.2) of the corresponding part (21) in the cylinder. 20.2). The locking system according to claim 1.   The variant comprises different shapes of the concave recesses (10.1, 10.2) and / or is formed in different parts (12.1, 12.2) of the cross section (12) of the key. The locking system according to claim 2, wherein:   The cross-sectional plane (36) of the introduction surface (35) of the key tip forms an angle (W2) with respect to the center bisection plane (5) of the key, and the angle W2 is at most 15 °. The locking system according to claim 1, characterized in that it is ˜20 °.   Different variants of the concave recess (10i) can be obtained by different shapes and / or by arrangement in different parts (12.1, 12.2) of the key cross section and / or the central bisection plane (5) of said key. 2. Locking system according to claim 1, characterized in that it is defined by different angles (W2) of the introduction surface (35) of the key tip relative to.   6. Locking system according to claim 5, characterized in that a clear partitioning into independent market areas (Mi) is defined by different variants of the concave recess (10i).   6. Locking system according to claim 5, characterized in that a further coding permutation (Codi) is produced by different variants of the concave recess (10i).   8. Corresponding part (21) is arranged on the movable coupling element (22) of the double cylinder or is formed as a separate part. Locking system.   The corresponding portion (21) is also provided with a concave pedestal area (25) corresponding to the convex shape of the key tip portion (11) adjacent to the concave concave portion (10) apart from the convex structure (20). The locking system according to claim 1, wherein:   A method for manufacturing a key and cylinder of a locking system according to any one of claims 1 to 9, wherein the concave portion (10) of the key tip (11) and the convex structure (20) of the corresponding portion (21) are provided. A method characterized in that it is manufactured or licensed centrally, and that further coding of the key (S) and assembly of the cylinder (Z) can be performed in a distributed manner in further manufacturing steps. Key blank (S ') or security reversible for security reversible key (S) with at least two coding pin rows (Ai) on the flat side with assigned cylinder (Z) with tumbler pin (3) A lock or switching function (9) is performed by rotating the cylinder,
Characterized by a concave recess (10) in the key tip (11) interacting with the convex structure (20) of the movable counterpart (21) in the cylinder;
The concave recess (10) is suitable to be positioned flat on the convex structure (20) of the corresponding portion (21) when the key is completely inserted, and as a result, the concave recess Key blanks or keys without a key are locked out by the convex structure of the counterpart (a), thereby preventing complete insertion,
The concave recess (10) starting from the key tip has a first slope (N1) with respect to the key axis in the direction of the key axis (x), and then with respect to the key axis. A second slope (N2), the second slope is greater than the first slope, and the concave recess (10) comprises a rounded concave area (13) in the x direction;
A key blank or key that allows the coupling element (22) to be locked in the x direction or moved to the switching position by means of the corresponding part (21).   The first slope (N1) of the concave recess (10) relative to the key axis is between 0 ° and 10 °, and the second slope (N2) of the concave recess is at least 40 °. The key blank or key according to claim 1, wherein   Key blank or key according to claim 11, characterized in that the concave recess (10) comprises an introduction area (7) for a coding pin row (A).   Key blank or key according to claim 13, characterized in that the concave recess (10) comprises an introduction area (7, 31) for the tumbler pin (3).   15. The concave recess (10) also comprises a section with a larger slope (N2.2), preferably at least 55 [deg.] Away from the introduction area (7, 31). Key blank or key.   The inclination (N) of the concave recess (10) in the introduction area (7, 31) of the coding pin row (A) corresponds to the introduction angle (Nz) of the tumbler pin (3) or at most Key blank or key according to claim 13, characterized in that the angle is also 45 °.   15. A key blank or key according to claim 14, characterized in that the concave recess (10) comprises an introduction surface (31) made of a coding milling cutter.   Key blank or key according to claim 13, characterized in that the concave recess (10) also comprises a blocking groove (BN). The key blank or key according to claim 11, characterized in that the width (b1) of the concave recess (10) is at least 20-40% larger than the width (b2) of the tumbler pin (3).   Key blank or key according to claim 11, characterized in that the width (b1) of the concave recess (10) is at least 50% of its length (l1).   The key blank or key according to claim 11, characterized in that the surface area of the cross-section (F1) of the concave recess (10) is at least 8% of the surface area of the cross-section (F) of the key.   14. The surface area of the cross section (F1) of the concave recess (10) is preferably at least 20-50% greater than the surface area of the cross section (F2) of the tumbler pin (3). Key blank or key.   Key blank or key according to claim 13, characterized in that the concave recess (10) comprises a coding pin array (A) with narrow tumbler pins (3.1).   The concave recess (10) is made of a contoured milling cutter (40), the axis (41) of the milling cutter (40) being perpendicular to the x-axis and 0 ° and 20 ° to the y-axis. Key blank or key according to claim 11, characterized in that it comprises an angle (W1) between.   The concave recess (10) is made of a contoured milling cutter (40), and the axis (41) of the milling cutter (40) is perpendicular to the z-axis and is 0 ° and 20 ° to the y-axis. Key blank or key according to claim 11, characterized in that it comprises an angle (W3) between.   The concave recess (10) is made of a milling cutter (40), the axis (41) of the milling cutter (40) is perpendicular to the x-axis and an angle between 0 ° and 20 ° with respect to the z-axis. The key blank or key according to claim 11, comprising (W4).   The concave recess (10) includes a rounded concave area (13) in the direction of the axis (x) of the key, and the radius (R) of the rounded concave area (13) is the key Key blank or key according to claim 11, characterized in that it is less than or equal to at most 2 mm.   28. Key blank or key according to claim 27, characterized in that the ratio of radius to key thickness (R / d) is between 0.4 and 0.8.   Key blank according to claim 11, characterized in that the concave recess (10) comprises at least three different rounded sections or rounded and straight sections in the cross section in the x direction. Or key.   The concave recess (10) comprises a key blank or a minimum distance (e) to the center bisection plane (5) of the key thickness (d) which is at most 10%, The key blank or key according to claim 11.   12. A key blank according to claim 11, characterized in that the dimension of the concave recess (10) is such that a lockout of a distance (a) of 0.5 to 1.5 mm is provided. Key.

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