WO2015000963A1 - Key and rotary lock cylinder - Google Patents

Abstract

The invention relates to a key (7) and a rotary lock cylinder which are provided for a safety lock. Said rotary lock cylinder comprises a rotor (1), a stator (3) and several tumblers, and the key (7) comprises several control elements working together with the tumblers. Said rotary lock cylinder comprises at least one coding element (41) and said key (7) has at least one coding path (43) which extends in the direction of insertion and which adapts to the coding element (41).

Description

 TITLE

Key and rotary lock cylinder

TECHNICAL AREA

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

STATE OF THE ART

Rotary lock cylinders and matching keys have become known from the prior art. It can be classified radially with the key tumblers, so that the rotor can be pivoted to the stator of the rotary lock cylinder when the tumblers coincide with the holes.

The disadvantage of the prior art is that the number of locking combinations or permutations depends essentially on the design of the tumblers between the rotor and stator and the corresponding holes in the key. Furthermore, the profiled keys can be very easily copied.

PRESENTATION OF THE INVENTION

The invention has for its object to provide a key and rotary cylinder of the type mentioned, wherein the number of Schliesskombinationen or Schliesspermutation is increased.

The object is solved by the invention according to claim 1. The inventive rotary lock cylinder comprises a rotor, a stator and a plurality of tumblers. Furthermore, the key comprises control elements, such as bores or stepped bores, for actuating or classifying the tumblers. The rotary lock cylinder further comprises at least one coding element and the key comprises at least one coding track which is suitable for the coding element and extends in the plugging direction. Coding element and coding path work together.

With the arrangement of a further and additional coding element and the matching coding path, the permutation of the closure possibilities can be increased in a simple and elegant manner by a multiple.

In addition, the security against manipulation is increased because two different elements, namely the usual tumblers and further the coding element with the coding track, must be consistent to operate the lock. The key can only be fully inserted into the rotor if the coding element and coding path match.

The key can be inserted into a keyway extending along the rotor axis, the coding element preferably protruding into the keyway. The keyway is located in the rotor.

Preferably, the coding element with respect to the key channel is held stationary in the rotor. Under stationary is understood that the coding element is fixed to the key channel and is not movable to this. The coding element is preferably pressed into a bore running perpendicular to the rotor axis in the rotor.

If the coding element is formed asymmetrically, the coding element must project in the correct position to the key channel in the key channel. In a symmetrical design, the orientation of the coding element to the key channel plays no role, wherein the coding element is then installed in the wrong position. However, both the asymmetrical and the symmetrically formed coding element are fixed or fixed to the key channel. Preferably, the coding portion of the coding element has at least one coding recess, wherein particularly preferably at least two coding grooves are present, which have the same or a different cross section when viewed in the plugging direction.

In a further development of the key, the coding path is arranged symmetrically with respect to a plane passing through a central axis in the key shank or through the rotor axis on the key shank. The key can thus be used as a reversible key.

In a particularly preferred embodiment of the invention, the coding path is arranged in a groove extending in the key shank. The groove comprises two opposite side walls provided by the key shank which extend in the direction of the rotor axis, both side walls to the interior of the groove being provided with said coding track.

More preferably, the coding path is provided in a shaft member communicating with the key shaft. The shaft member may be provided, for example, as a key cap, which is connected to the key tip. The key cap has the advantage that it is reusable. Preferably, the coding path is arranged in the key tip and only partially extends in the region of the key tip over the key shaft. In other words, the coding path does not extend over the entire key shaft. In an alternative embodiment, however, it is conceivable that the coding path extends over the entire key shaft.

In one embodiment of the invention, the coding path is arranged on the outside of the key shank, in particular on the narrow side and / or the broad side, wherein the coding element comprises a groove with the coding sections, which cooperates with arranged on the outside of the key shaft coding track.

Preferably, the coding element is arranged symmetrically to the key channel. The coding element is thus located centrally between two side walls of the key channel. Particularly preferably, the width of the coding element is smaller than the width of the key channel, so that a gap is provided between the side wall of the coding element. Particularly preferably, the coding element projects from at least one side into the key channel. For example, the coding element projects from above and / or below into the key channel.

Preferably, the coding element is designed as a pin, wherein the pin has in particular a circular cross-section. The pin may be rotationally symmetrical or asymmetrical.

Further embodiments are given in the dependent claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Preferred embodiments of the invention will be described below with reference to the drawings, which are given by way of illustration only and are not to be interpreted as limiting. In the drawings: FIG. 1a shows a sectional view through a rotary lock cylinder according to the invention with inserted key;

 Fig. 2a-2d different views of the key according to the figure 1 with a

 Embodiment of a Codierangselementes;

 FIGS. 3a-3c show various embodiments of the key according to FIG. 1;

4a-4f different embodiments of a coding element;

Fig. 5 shows a further embodiment of a coding element with a

Key with coded narrow side; 6 shows a further embodiment of an encoding element with a

Key with coded page;

Fig. 7a / b, a preferred embodiment of the key tip of a

 Turn key;

Fig. 8a / b show a preferred embodiment of the key tip of a non-reversible key;

 Fig. 9a b, a further embodiment of the rotary lock cylinder with a

 Query item; and

Fig. 10a-c further embodiments.

DESCRIPTION OF PREFERRED EMBODIMENTS

FIG. 1 shows a first embodiment of a rotary locking cylinder according to the invention with a key 7.

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

In the figure la and b, the stator 3 is surrounded with a conventional steel sleeve 4. In the stator 3, the rotor 1 is rotatably mounted. Rotor 1 and stator 3 are shown here only by way of example and may be formed differently in other Ausführangsformen. Furthermore, the rotary-lock cylinder comprises at least one coding element 41 with at least one coding section 42, and the key 7 comprises at least one coding track 43 matching the coding element 41 and extending in the insertion direction. The coding element 41 protrudes into the keyway 2. To the key 7 so must be able to introduce into the keyway channel 2, the coding path 43 must match the code element 41 on the key. If the key 7 is not suitable, it is not possible to completely insert it into the key channel 2, because the coding element 41 is not formed to match the coding path 43. Thus, the tumblers can not be operated.

To actuate the rotary lock cylinder, the shaft 11 of the key 7 is inserted as usual in the keyway 2. During the insertion of the key 7 this comes with its coding path 43 in contact with the arranged in the rotary lock coding element 41, which protrudes into key channel 2. If the key is authorized, the coding path 43 and the coding element 41 coincide and the key 7 can be inserted completely into the key channel 2. Here, the usual tumblers not shown here are classified by the usual holes of the key. In other words, it can be said that for the rotation of the rotor 1 not only the usual tumblers with the key 7 but also the coding element 41 with the coding track 43 must match.

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

The coding element 41 is held stationary with respect to the key channel 2 in the rotor and thus is firmly connected to the rotor 1 in connection. By stationary is meant that the coding element 41 does not move away from its relative position in the key channel in use. As a result, the coding element 41 is always in the same place with respect to the key channel 2 in a specific rotary lock cylinder. Preferably, the coding element 41 is pressed into a perpendicular to the rotor axis bore 28 in the rotor 1.

In the figure la and lb can continue to be well recognized that the coding element 41 with respect to the side walls 66 of the key channel 11 centrally, so symmetrically, is in the keyway 11. Between the side wall 66 and the coding element 41 is located So both left and right of the coding element 41, a gap 67, in which the key 7 comes to rest. In other words, it can also be said that the coding element 41 projects from a side wall into the keyway 11. In the case of a non-reversible key, an encoding element 41 can protrude into the keyway 11 both from above, as shown in FIG. 1, or from below. In a reversible key, the coding element 41 protrudes from above and / or from below into the key channel. Figures la and lb show substantially identical embodiments. The coding element 41 according to FIG. 1 a is here inserted into a bush 44, in particular pressed in. The bush 44 itself is arranged in an opening or bore 45 provided in the rotor. The outer shape of the sleeve 44 is cylindrical, so that the sleeve 44 can be inserted into a bore 45 with a round cross section. The opening in sleeve 44 here has a circular cross section, wherein the cross section of the coding element 41 is also circular. This is a symmetrical design of the coding element 41. However, the coding element 41 could also be mounted directly in the rotor 3 without the bushing. The coding element 41 according to FIG. 1b is here inserted into a bush 44, in particular pressed in. FIG. The bush 44 itself is arranged in an opening or bore 45 provided in the rotor. The outer shape of the sleeve 44 is cylindrical, so that the sleeve 44 can be inserted into a bore 45 with a round cross section. The opening in sleeve 44 here has a square cross section, wherein the cross section of the coding element 41 in the region of the sleeve is also square. This is an asymmetrical design of the coding element 41. The coding element 41 must be inserted into the bush in a corresponding and key-matching orientation. The opening in the bush can also have a different cross-section. By way of example, triangular, polygonal or polygonal cross sections are mentioned here. The asymmetric coding element 41 has the advantage that it can be used several times, whereby the Schliesinkombinatorik is increased. The coding element 41 could also be stored directly without the sleeve in the rotor 3. Figures 2a to 2d show a first embodiment of a coding element 41 and the matching coding tracks 43 on the key 7. In the figure 2c, the coding element 41 is shown in engagement with the key 7 shown. Here, the coding element 41 on two Codierungsausnehmungen 48 which are formed according to the coding path 43 on the key 7. The coding recesses 48 correspond to the structure provided by the coding tracks 43 on the key 7.

The coding element 41 and the key 7 are here designed such that the key has a groove 49 in the region in which the coding element 41 comes to lie. The groove 49 thus receives the coding element 41. The groove 49 is bounded by side walls 50 of the key shank 11. From the side walls 50, the coding tracks 43 extend into the groove 49, which is particularly clearly visible from the cross section of FIG. 2a.

FIG. 2b shows the view of the coding tracks 43 within the groove 49, and FIG. 2c shows how the coding track 43 cooperates with the coding section 42 of the coding element 41.

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

With respect to a through the rotor axis and the central axis through the key shank parallel to the side 55 extending plane El, the coding path 43 and also the coding element 41 is formed symmetrically in the present embodiment shown. An asymmetric training is also conceivable. In FIGS. 2a to 2d, only one groove 49 with coding tracks 43 is shown. In other embodiments, two grooves 49 may be arranged with coding tracks 43 opposite each other. With regard to this embodiment, it is particularly advantageous if the two grooves 49 are formed symmetrically with respect to a passing through the rotor axis and parallel to the side 54 plane E2, whereby the key is used as a reversible key.

The coding element 41 is preferably designed to be rotationally symmetrical about an axis extending in the installed state perpendicular to the plug-in direction. Thus, the coding element 41 can be installed without accurate positional positioning. Alternatively, however, the coding element 41 may also be formed asymmetrically, in which case the coding element 41 must be positioned in the key channel 2 with respect to the direction of insertion of the key 7 in the correct position. From the figure 2c can be further well recognized that the coding element 41 seen in the insertion direction shorter than the keyway 2 and the key shank 11 is formed. The coding element 41 thus extends only over a partial area of the key channel 2. FIGS. 3a to 3c show a further embodiment of an encoding element 41 and the matching coding path 43 on the key 7. The coding element 41, which is shown only in FIG. 3b, has the shape of a bolt or pin 56. In the lateral surface 57 of the bolt 56, recesses 58 which provide the coding section extend. If the bolt 56 has a circular cross section, then the recess 58 may be a circumferential groove. The gap 58 may be spaced apart from the end face 59 of the bolt 56. As shown in FIGS. 3a to 3c, this spacing may be different in different embodiments for the purpose of increasing the number of locks, for example in three increments.

The depth of the groove 49 in the key 7, which receives the bolt 56, thereby also formed differently in each embodiment, the various keys are also provided here with three increments. The groove 49 also has one here Coding track 43, which is bounded at the top with a protruding into the groove 49 section 59, which defines the narrow side at the same time. The coding path 43 is provided here by the recess provided between the bottom of the groove 49 and the section 59 and the section 59 itself.

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

FIGS. 4a to 4f show further embodiments of possible coding elements 41. The coding elements 41 likewise have a recess 58 here, which corresponds to the section 59 of the groove 49. This recess 58 is optional here and, if the section 59 is likewise absent, the recess 58 can be dispensed with. Furthermore, the coding elements 41 here have additional coding recesses 60, which have different shapes. The key 7, which is not shown here, likewise has coding tracks 43 corresponding to the coding recesses 60, which then extend from the side wall into the groove.

The cross-section of these Codierungsausnehmungen 60 may be formed in various ways, such as rectangular in Figure 4a, and / or semicircular in Figure 4b, and / or trapezoidal, and / or triangular in Figure 4c. The combination of several different cross sections is also possible, as well as the arrangement of several identical or different coding recesses on one side of the coding element 41, as shown with reference to FIG. 4d.

The cross sections according to FIG. 4 d are preferably arranged in a bolt 56 with a rectangular cross section. The bolt 56 is then pressed in the correct position to the keyway 2 in the rotor, the Codierungsausnehmungen run in the direction of the keyway 2.

The coding tracks 43 according to FIGS. 2 to 4 have in common that they are arranged on the narrow side 54 of the key 7. Further possible coding elements are shown in FIGS. 4e and 4f. Here, some of the coding recesses 60 have undercuts 64.

FIGS. 5 and 6 show alternative and further embodiments. Here, the coding element 41 has a groove 63, in which the coding section 42 is arranged. The key 7 has coded tracks 43 cooperating on the key shaft with the coding section 42.

In FIG. 5, the coding section 42 is arranged at the bottom of the groove 63 of the coding element 41, and the coding path 43 is accordingly arranged on the narrow side 54 of the key.

In Fig. 6, the coding portion 42 is disposed on the side walls of the groove 63, and the coding trace 43 is accordingly arranged on the side 55 of the key.

A combination of Figures 5 and 6 is also possible, in which case the coding path 42 is arranged both on the narrow side 54 and also on the side or broad side 55 of the key 7, in which case the coding sections on the side walls and the bottom of the groove 63rd must be arranged.

It would also be conceivable that the key is formed bevelled at the transition from the side 55 to the narrow side 54, wherein corresponding codings can be present both on the bevel, as well as on the narrow side 54 and / or on the side 55.

In FIGS. 7a and 7b, a particularly preferred embodiment of a key tip on a reversible key is shown. The key tip comprises a key cap 65, which is attached to the key shank 11. The key cap 65 can be connected via a positive, non-positive or cohesive connection with the key.

The key cap 65 can also be used on a non-reversible key. The key cap 65 includes the coding path 43. Arranging the coding path 43 on the key cap 65 has the advantage that the number of Schliesspermutationen can be increased in a simple manner. In FIGS. 8a and 8b, a particularly preferred embodiment of a key tip on a reversible key is shown. The same parts are provided with the same reference numerals and reference is made to the description of Figures 7a and 7b. In Figures 9a and 9b, another embodiment of the present invention is shown. Identical parts are provided with the same reference numerals. In addition to the features already described above, the rotary lock cylinder comprises a further tumbler in the form of a query tumbler 68. The tumbler 68 serves to query the presence of the coding web 43. In the presence of the coding web 43, the tumbler 68 is moved to the closing height, so that the rotor 1 can be rotated to the stator 3.

The query tumbler 68 here comprises a rotor pin 72 and a stator pin 73 which is acted upon by a spring 71 acting against the rotor 1 with a spring force. The query tumbler 68 is then at closing height when the line of contact between the rotor pin 72 and the stator pin 72 lie on the shear line 27.

Particularly preferably, the query tumbler 68 acts on the side wall 50 which laterally delimits the groove 49. This is shown in FIG. 9a. In another embodiment, the query tumbler 68 acts on the coding path 43, which is shown in FIG. 9b. In both embodiments, the query locking in the direction of the central axis M may be offset from the coding element 41.

FIGS. 10a to 10c show a further advantageous embodiment. Here it is well shown that the key shank 11 can be formed as a main profile. In this case, the key shank 11 is reduced by an outer surface 69 in a plurality of defined increments, wherein the coding element 41 is also adapted. These increments have the advantage that the copy security and the number of Permutations can be improved. In the figures, three different increments are shown by way of example. The number of increments can be arbitrary. In FIGS. 10a to 10c, the groove 49 is not shown. However, the groove 49 can be arranged equally, with reference being made here to FIGS. 6a and 6c.

Furthermore, it is shown in FIGS. 10a to 10c that the coding element 41 has on its surface facing the key shank 11 additional coding regions 68 which cooperate with coding paths 43 on the key shank. Here, exemplary coding paths 43 are shown, which have the shape of a triangle in cross section. The form and number can be arbitrary.

LIST OF REFERENCE NUMBERS

Rotor 68 Query locking

Key channel 69 outer surface

Stator 70 coding area

Steel sleeve 71 spring

 Key 72 rotor pin

Key shank 73 Stator pin

 shear line

 drilling

 coding element

 coding section

 coding train

 rifle

 drilling

 Codierungsausnehmung

 groove

 Side wall

 key tip

 outside

 narrow side

 Page / broadside

 bolt

 lateral surface

 recess

 section

 Codierungsausnehmung

 groove

 undercut

 key cap

 Side wall

 gap

Claims

1. key (7) and rotary lock cylinder for a security lock, wherein the rotary lock cylinder has a rotor (1), a stator (3) and a plurality of tumblers, and wherein the key (7) cooperating with the tumblers controls, in particular holes and / or Stepped bores, comprising, characterized in that the rotary lock cylinder comprises at least one coding element (41) and that the key (7) at least one coding element (41) matching and extending in the insertion direction coding path (43). 2. Key according to claim 1, characterized in that the coding path (43) with respect to a through a central axis in the key shank (11) or through the rotor axis extending plane (E), which parallel to the side (55) and / or upright side ( 54) of the key (7) is arranged symmetrically on the key shaft (11). 3. Key according to claim 1 or 2, characterized in that the key shank (11) of the key is divided into at least two, preferably at least three, sectors, namely a standard sector with control bores for the classification of the tumblers and in a coding sector with the coding path ( 43), and into an optional security sector with the additional coding path (43), the security sector being congruent or spaced from the coding sector. 4. Key according to one of the preceding claims, characterized in that the key shank (11), in particular in the standard sector, is not profiled. 5. Key according to one of the preceding claims, characterized in that the coding path (43) in a key shank (11) extending groove (49) is arranged. 6. Key according to claim 5, characterized in that the groove (49) two opposite side walls (50) provided by the key shank (11) extending in the direction of the rotor axis, both side walls (50) being provided with said coding track (43). 7. Key according to one of the preceding claims, characterized in that the coding path (43) directly on the key shank (11), in particular in the region of the key tip is arranged, or that the coding path (43) in a by a with the key shank (11 ) is provided, which is attachable in particular to the key shank (11), wherein the key cap (65) is preferably made of a harder material than the key shank (11 ), and / or wherein the key cap (65) via a positive or non-positive or cohesive connection with the key shank (11) is in communication. 8. Key according to one of the preceding claims, characterized in that the coding path (43) is arranged on one side or two sides on the key shank (11) or on the shaft element or on the key cap (65), wherein in the two-sided arrangement, the coding path (43 ) with respect to a through a central axis in the key shank (11) or through the rotor axis extending plane (E), which is parallel to the narrow side or broad side of the key (7) is arranged symmetrically on the key shank (11). 9. Key according to one of the preceding claims, characterized in that the coding path (43) is limited in its length along the central axis (M) of the key shank (11) or shorter than the key shank (11) is formed, so that the Coding path does not extend over the entire key shank (11), wherein the coding path (43) is preferably arranged in the key tip (52) and shorter than the key shank (11) is formed. 10. Key according to one of the preceding claims, characterized in that the coding path (43) in its length along the central axis (M) of the key shank (11) corresponds to half the shaft length. 11. Key according to one of the preceding claims, characterized in that extending the coding path (43) over the entire key shank (11). 12. Key according to one of the preceding claims, characterized in that the coding path (43) is milled and / or drawn and / or produced by another method. 13. Key according to one of the preceding claims, characterized in that the key shank (11) is narrowed by the coding path (43), in particular on both sides or narrowed on one side, whereby thereby one in the direction of the central axis (M) of the key shank (11) extending Surface (61) is provided. 14. Key according to one of the preceding claims, characterized in that the coding path (43) on the outside (53) of the key shank (11), in particular on the narrow side (55) and / or the width side (54) is arranged and that Coding element (41) comprises a groove (63) which are provided with coding sections (42). 15. Key according to one of the preceding claims, characterized in that from an outer side (67) of the key (7) of the key shank (11) can be reduced in several increments, wherein the coding element (42) in several increments can be increased, whereby the combinatorics is enlargeable. 16. Rotary lock cylinder according to one of the preceding claims, characterized in that the key (7) in a running along the rotor axis keyway (2) can be inserted, wherein the coding element (41) projects with a coding section (42) in the keyway (2) , 17. Rotary lock cylinder according to one of the preceding claims, characterized in that the coding element (41), in particular in asymmetrical design, with respect to the keyway (2) fixed fixed and held in the correct position in the rotor, or that the coding element (41), in particular at symmetrical Training, with respect to the key channel (2) fixed fixed and preferred non- in the correct position, wherein the coding element (41) is preferably pressed into a perpendicular to the rotor axis bore (28) or wherein the coding element (41) mounted in a in a direction perpendicular to the rotor axis bore (28) pressed bush (13), in particular pressed , is or is part of this rifle (13). 18. Rotary lock cylinder according to one of the preceding claims, characterized in that the coding portion (42) of the coding element (41) has at least one Codierungsausnehmung (48), wherein particularly preferably at least two Codierungsausnehmungen (48) are present, which seen in the insertion direction the same or have a different cross-section. 19. Rotary lock cylinder according to one of the preceding claims, characterized in that the coding element (41) seen in the insertion direction shorter than the keyway (2) and / or the key shank (11) is formed and / or that the coding path (43) shorter than that Key shank (11) is formed. 20. Rotary lock cylinder according to one of the preceding claims, characterized in that the rotary lock cylinder comprises a further tumbler in the form of a query tumbler (69), which query interlock (69) interrogates the presence of the coding path (43). 21 rotary lock cylinder according to claim 20, characterized in that the query locking (69) on the side wall (50), which limits the groove laterally acts. 22. Rotary lock cylinder according to one of claims 20 to 21, characterized in that the query tumbler (69) acts on the coding path (43). 23. Rotary lock cylinder according to one of the preceding claims, characterized in that the coding element (41) is arranged centrally or symmetrically to the keyway (11). 24. Rotary lock cylinder according to one of the preceding claims, characterized in that the coding element (41) of at least one side in the Key channel (11) protrudes or protrudes from exactly one side in the keyway (11). 25. Rotary lock cylinder according to one of the preceding claims, characterized in that the coding element (41) is designed as a pin. 26. Rotary lock cylinder according to one of the preceding claims, characterized in that the coding element (41) is inserted in an opening, wherein the opening has a cross section which allows insertion of the coding element (41) in a predefined orientation to the key channel, and that this Opening is preferably provided by an inserted into a bore (45) in the rotor, in particular pressed bush (44).