EP3696348A1 - Locking cylinder - Google Patents

Abstract

According to one aspect of the invention, a lock cylinder with a stator and a rotor rotatably guided in the stator is provided. The lock cylinder also has a housing web (6) and at least one housing module (7) which can be attached to the housing web. The housing module is equipped to accommodate a unit of rotor and stator or to form the stator itself. There are also coupling structures (21) for coupling between the housing web and the housing module, which act in such a way that the housing module can be moved parallel to the axis relative to the housing module and can be joined to the housing web with a movement parallel to the axis, but that relative movements between the housing web and the housing module in other than axial directions can be prevented by a form fit.

Description

The invention relates to a lock cylinder and systems of lock cylinders.

Lock cylinders have a stator (sometimes also called "cylinder housing") that cannot be attached to a lock and a rotor (sometimes called "cylinder core") that can be rotated around the axis of the lock cylinder when a suitable key is inserted output means are moved, which are used to actuate a bolt or other means associated with the desired function of the lock cylinder.

Among the lock cylinders there are double lock cylinders with two i.A. coaxially arranged rotors and single cylinders ("half cylinders"), with only one rotor.

It is known to construct lock cylinders in a modular fashion by assembling them from a separate housing which can be fastened to the door or the like and a unit or - in the case of the double cylinder - two units, each with the stator and the rotor. The length of the housing can be adapted and, under certain circumstances, the units can be added to the outer profile of the lock cylinder - the outer profile of the lock cylinder can, for example, be specified by a standard.

The housing must meet various requirements. Firstly, it must be ensured that the units with rotor and stator cannot simply be removed by pulling forwards when they are installed in the door. Second, however, the housing must be designed in such a way that it enables the units to be inserted in the removed state. Thirdly, the housing should be constructed in such a way that it can be designed in different lengths - corresponding to different door thicknesses - without the entire lock cylinder having to be redesigned. Fourth, it is preferred that the housing allow drilling protection, i. that it is not possible through a bore made from the outside through which the units could be exposed or direct access to a lock bit or the like could be made possible.

The German Offenlegungsschrift DE 197 53 013 shows a lock cylinder for a bit key, in which a housing carrier is provided for particularly good protection, in which two cylinder housings are inserted in such a way that they are inextricably connected to this after their insertion. In addition, there is a protective shield that is both permanently connected to the respective cylinder housing and permanently connected to the housing support. The permanent connection of the cylinder housing to the housing support is carried out in such a way that a housing part which projects radially away from the cylinder axis and in which the tumblers and counter-tumblers are also mounted engage in a groove in the housing support. This construction brings increased security against violent attacks. However, it is only applicable to lock cylinders with a single row of tumblers that interact with a bit key. The total number of permutations possible is therefore limited. In addition, the intentionally inflexible structure is incompatible with approaches that result in improved modularity.

It is an object of the present invention to provide a lock cylinder and a modular system for forming a lock cylinder which overcome the disadvantages of the prior art and which in particular enable the greatest possible modularity to be achieved with as few differences in part design as possible, without that the safety or the ease of use for the fitter on site or the user would be impaired.

This object is achieved by the invention as defined in the patent claims.

According to one aspect of the invention, a lock cylinder is provided with a stator and a rotor rotatably guided in this, in which a key channel is present, into which a key, in particular a flat key, can be inserted from an outside, and which defines an axis, which corresponds to the axis of rotation of the rotor and parallel to which the keyway runs.

The rotor and stator are - in particular in a manner known per se with tumblers and counter-tumblers; However, mechatronic solutions with an electronic access check of a touch or non-contact key are not excluded - provided with means to enable a rotary movement of the rotor relative to the stator when the key is inserted and to block it when no key or an unsuitable key is inserted or is present.

The lock cylinder also has a housing web and at least one housing module which can be attached to the housing web. The housing module is equipped to accommodate a unit of rotor and stator or to form the stator itself.

There are also coupling structures for the coupling between the housing web and the housing module, which act so that the housing module can be moved parallel to the axis relative to the housing module and can be joined to the housing web with a movement parallel to the axis, but that relative movements between the housing web and the housing module are different than axial directions can be prevented by a form fit.

This approach has been found to be particularly advantageous for modularity. The reason for this is that due to the axial displaceability, the (axial) lengths of the housing web and housing module (s) do not have to be coordinated with one another in advance. Rather, the housing modules can be generic and usable for all common cylinder lengths. Only the length of the housing web and any coupling parts need to be adjusted, and under certain circumstances intermediate parts can be used. In addition, the housing web itself can also have a modular structure in that it can be assembled from a plurality of housing web modules, which in turn can be fastened to one another, for example likewise by means of a form-fitting connection. Such housing web modules each form part of the total length of the housing web, so they are arranged one after the other in the axial direction. In such an embodiment, the lock cylinder length can be adjusted on site during assembly without specifically ordering suitable parts in advance. Even if a modularity of the housing web is dispensed with, there are at least advantages in terms of manufacturing technology, because housing webs of different lengths differ due to the geometry only in their length and, under certain circumstances, the distance between bores, so that the same tools essentially without adaptation for the production of different housing webs can be used.

Modular cylinder structures according to the prior art have modules that are connected by screwing, pinning, caulking, etc. Appropriate tools and devices are required for this. In contrast, the approach according to the invention enables no special tools and devices to be required. Depending on the design, the cylinder can be dismantled with very simple means, for example a simple paper clip (by pressing in a fixing pin, see below). Nevertheless, no compromises have to be made in terms of safety: due to the approach according to the invention, the cylinder can only be dismantled when it is removed.

Finally, further advantages also result from the simple, yet reversible, couplability between the housing web and housing module and the very simple possibility of attaching a drill protection.

The housing web is provided, for example, with a first coupling structure and the housing module is provided with a second coupling structure, the first and second coupling structure interlocking positively and thereby preventing a relative movement of the housing web and the housing module in the radial and also in the tangential direction but allowing movement in the axial direction.

It is also possible that a separate coupling element is provided which has both a coupling structure for coupling with a matching housing web-side coupling structure and a coupling structure for coupling with a suitable housing module-side coupling structure. The coupling structures can in particular form a dovetail connection or a T-slot connection.

In embodiments, the at least one housing module forms a receptacle for an insert part which comprises a stator and a rotor. Such a receptacle can comprise a fastening ring or the like or a, for example, circular cylindrical bore for receiving the insert part; in this regard, see the publication, for example EP 2 803 789 referenced.

In particular, the lock cylinder has two housing modules which can be coupled to the housing web and which each accommodate the rotor and stator or form the stator. These are available on the outside of the lock cylinder so that it forms a double cylinder that can be operated from both sides. However, it is also possible that in such a configuration one of the housing modules does not carry or form a stator, but for example only accommodates a shaft for a knob that is firmly coupled to the output unit - which is the case with locking cylinders for doors that always and without an interior space Keys can be opened, can be an option.

Depending on the desired overall length of the lock cylinder, a supplementary inner housing module can be present between the mentioned housing modules.

The locking cylinder as a whole can correspond to the Hahn profile (or 'Euro profile'), or the Swiss round profile or another suitable cylinder profile.

In a cavity, which is formed by a first fixing hole in the housing web and an aligned second fixing hole in the housing module, a fixing pin can be present, which extends over a shear surface between the housing module and the housing web. This is held, for example, regardless of the spatial position of the lock cylinder due to a spring force at the location of the shear surface. Instead of a spring force, other mechanisms are also conceivable in order to hold the fixing pin in the desired position, for example a magnetic coupling.

The fixing pin can, for example, be shifted against the spring force - or other, for example magnetic force - so that the housing module can be removed from the housing web by a sliding movement in the axial direction. To move the fixing pin, an access opening, which is not accessible when the lock cylinder is installed, can be present in the housing web, through which a tool can engage and move the fixing pin. Such an access opening will have a different, in particular smaller, cross section than the (first) fixing bore.

The optional design of the drill protection is particularly simple. A two-part drill protection made of a particularly hard material suitable for anti-drill protection purposes is arranged in a cavity that is further outward compared to the fixing bores and is formed by a first drill protection hole in the housing web and a second drill protection hole in the housing module that is aligned with it. The drill protection is formed by a first anti-drill pin in the first anti-drill hole and a second anti-drill pin in the second anti-drill hole.

In principle, it is not necessary for the drill protection holes to be aligned with one another; rather, the boron protection pins can also be arranged slightly offset from one another, with a possible distance, for safety reasons, preferably not being significantly greater than a drill protection pin diameter.

This approach to attaching the drill protection also has the advantage that the drill protection holes do not have to be precisely matched to the drill protection pins in terms of their dimensions. The anti-drilling pins can, for example, move easily in the anti-drilling holes without them falling out or otherwise losing their effectiveness. The anti-drill pins therefore do not have to be pressed in, caulked, glued in, etc. as in the prior art. This is advantageous in terms of manufacturing costs.

The term “hole” in this text is generally to be understood as describing a depression or a breakthrough and is not necessarily to be understood as being restricted to production using a drill.

The lock cylinder is, for example, a lock cylinder for flat keys, in particular reversible keys. In particular, the lock cylinder has several rows of tumblers distributed in the circumferential direction. However, it can also be used for pointed keys.

In addition to a lock cylinder, the invention also provides a system with housing modules and with several matching housing webs or housing web modules of different lengths. As explained above in the description of the lock cylinder, housing modules and housing webs are matched to one another in such a way that the described coupling is possible.

At least two of the housing webs or housing web modules will preferably differ in their length. It can also be provided that, in addition to housing web modules at the end, there is a middle part or intermediate part which is designed for coupling on both sides (on both sides in relation to axial directions) a further housing web module. A form-fit connection with respect to axial directions, in particular a dovetail connection, can be provided between the housing web modules.

• Figur 1 eine perspektivische Seitenansicht des Schliesszylinders in einer ersten Ausführungsform;
• Fig. 2 einen Längsschnitt durch den Schliesszylinder in der ersten Ausführungsform;
• Fig. 3 eine Vorderansicht des Schliesszylinders in der ersten Ausführungsform;
• Fig. 4 Elemente der Kupplung in einer Explosionsdarstellung;
• Fig. 5 schematisch das Wirkprinzip der Befestigung des Gehäusemoduls sowie einen Bohrschutz;
• Fig. 6 einen Schnitt entlang der Ebene B-B in Fig. 2;
• Fig. 7 ein Detail aus Fig. 6;
• Fig. 8 eine weitere Ausführungsform eines Schliesszylinders in einer perspektivischen Ansicht;
• Fig. 9 einen Längsschnitt durch die Ausführungsform gemäss Fig. 8;
• Fig. 10 einen Schnitt entlang der Ebene E-E in Fig. 8;
• Fig. 11 und 12 perspektivische Ansichten je einer weiteren Ausführungsform;
• Fig. 13 schematisch weitere Kopplungsstrukturen;
• Fig. 14 schematisch eine weitere Ausführungsform, wobei Bild B einen Schnitt entlang der Ebene D-D in Bild A und Bild C einen Schnitt entlang der Ebene E-E in Bild A darstellt; und
• Fig. 15 eine nur ausschnittweise dargestellte weitere Ausführungsform, wobei Bild B einen Schnitt entlang der Ebene B-B in Bild A und Bild C einen Schnitt entlang der Ebene C-C in Bild A darstellt.

Exemplary embodiments of the invention are described below with reference to figures. In the figures, the scales used are partly different and the same reference symbols designate the same or analogous elements. Show it:

• Figure 1 a perspective side view of the lock cylinder in a first embodiment;
• Fig. 2 a longitudinal section through the lock cylinder in the first embodiment;
• Fig. 3 a front view of the lock cylinder in the first embodiment;
• Fig. 4 Elements of the coupling in an exploded view;
• Fig. 5 schematically the operating principle of the attachment of the housing module and a drill protection;
• Fig. 6 a section along the plane BB in Fig. 2 ;
• Fig. 7 a detail Fig. 6 ;
• Fig. 8 a further embodiment of a lock cylinder in a perspective view;
• Fig. 9 a longitudinal section through the embodiment according to Fig. 8 ;
• Fig. 10 a section along the plane EE in Fig. 8 ;
• Figures 11 and 12 perspective views of a further embodiment;
• Fig. 13 schematically further coupling structures;
• Fig. 14 schematically a further embodiment, where image B represents a section along the plane DD in image A and image C represents a section along the plane EE in image A; and
• Fig. 15 a further embodiment shown only in part, image B being a section along plane BB in image A and image C being a section along plane CC in image A.

The lock cylinder 1 according to Figures 1-3 is a double locking cylinder with the so-called Hahn profile (also called Euro profile), as it is defined in the DIN 18252 standard. The stator 3 and rotor 4 are each present in an insert part 2 on both sides. A key channel 5 for inserting a flat key, namely a reversible key, is formed on the rotor 4.

The rotor 4 and the stator 3, their mode of operation and their interaction (in particular with tumblers and counter-tumblers that release a rotation of the rotor in the stator when the appropriate key is inserted) can be designed as known from mechanical lock cylinders and are not explained in more detail here .

The functioning of the output unit of the lock cylinder as such can also be known per se. Figure 4 shows an exploded view of the insert parts 2 (with an in Figures 1 and 2 non-existent optional, axially slightly protruding outer sleeve) with coupling elements: a coupling device 12 interacts with an output slot 11 of the rotor, which can be designed as known and - in the example of a double lock cylinder - has two coupling parts that can be rotated against each other, which one Depending on the coupling state, hub 13 couples to one or the other of the two rotors 4 in a rotationally fixed manner. The coupling device 12 can also - as is also known per se - be shaped in such a way that it prevents a simultaneous insertion of keys from both sides.

In addition to the illustrated embodiment of the coupling device, there are various alternatives that enable different functions. It applies to all embodiments of the invention that correspondingly different coupling devices can be used.

The hub 13 is provided on the outside with a plurality of axially extending grooves and is thus shaped in the manner of a spline shaft, while a driver 14 for actuating a bolt has the shape of a splined hub on the inside, so that the hub 13 and driver 14 have interlocking structures and are rotatably connected. Of course, other constructions are also possible, for example the combination of hub and driver to form a one-piece output part.

According to the invention, the housing of the lock cylinder is constructed in several parts, with a housing web 6 and with housing modules 7 which can be joined onto the housing web from the outside by being pushed on in the axial direction (axis 20). For this purpose, the housing web 6 and the housing modules 7 each have a coupling structure, the coupling structures interacting to form a dovetail connection. In the illustrated embodiment, the housing web 6 forms a cross-section dovetail-shaped projection 21 which engages in a corresponding dovetail-shaped recess 22 in the respective housing module 7, which is, for example Fig. 3 looks good.

The housing modules 7 are each from the outside (ie the one in Fig. 2 Housing module 7 shown on the left from the left and that in Fig. 2 Housing module shown on the right from the right) can be pushed onto the housing web 6. In the illustrated embodiment, the dovetail connection extends axially outward. However, this is not necessarily the case: the respective housing modules 7 can have a section on the outside, for example in the manner of an apron, which covers the housing web on the outside and on the basis of which the housing appears homogeneous from the outside.

Figure 5 schematically illustrates a possible principle for fastening the housing module 7 to the housing web 6 and for a drill protection. In the case bridge is a first fixing hole 31 and a corresponding second fixing hole 32 in alignment therewith on the housing module. A fixing pin 35 is pressed by the force of a spring 34 against a radially outer stop and is longer than the depth of the first fixing bore 31, so that it extends over the shear line between the housing web 6 and housing module 7 and so these two parts against each other axial movements blocked. However, it is shorter than the depth of the second fixing hole and can therefore be pushed completely into the second fixing hole 32 against the force of the spring 34 by a tool (not shown) which is inserted through an access opening 37 in order to move the housing module to be removed in the axial direction from the housing web.

In the exemplary embodiment shown, a drill protection is formed by two hardened drill protection pins 43, 44, which are located in corresponding drill protection bores 41, 42 of the housing web 6 and of the housing module 7. In this way, the drilling protection can be implemented particularly easily and with prefabricated parts.

In the embodiment of Figures 1-3 Another optional feature is implemented, which can be found in Figure 6 in which a section along the plane BB in Fig. 2 is shown enlarged, and enlarged in Figure 7 , sees particularly well: in the second fixing opening 32, in addition to the in Figure 5 illustrated elements, a second, radially inside fixing pin 36 is present, which is pressed by the spring 34 radially inward. In addition, the second fixing opening is continuous and the stator has a stator fixing opening which is aligned with the second fixing opening. In this way, the second, radially inner-side fixing pin also serves to fix the stator relative to the housing module 7.

The housing web 6 also has a fastening opening 51 with a faceplate thread, which is used for fastening, for example, in a door / lock by means of a faceplate screw.

In Figures 1-3 , 6 and 7 a double cylinder of a standard size is shown. If a double cylinder is desired for a thicker door, the system according to the invention enables the use of practically all parts of the standard double cylinder shown, namely the housing modules 7 and the insert elements 2 with rotor and stator. Only the housing web 6 has to be replaced by an axially correspondingly longer housing web. In addition, the coupling elements must be replaced or supplemented, for example by replacing the coupling device 12 and hub 13 with axially longer, functionally identical elements in accordance with the desired dimension. In addition, a supplementary inner housing module can be provided which protects said coupling elements from the outside where they would otherwise be exposed due to the extension.

Instead of providing housing webs of all common lock cylinder lengths as mentioned above - or in addition to them - the housing webs as such can also be constructed in a modular manner in a modular system for lock cylinders. A first example of a modular lock cylinder with a modular housing web 6 is shown in FIG Figures 8-10 shown. The housing web 6 has a first housing web module 61 and a second housing web module 62. The length of the housing web composed of the housing web modules 61, 62 is greater than the length of the housing web in the embodiment of FIG Figures 1-3 , 6 and 7 , which is why the coupling device 12 is designed correspondingly longer and a supplementary inner housing module 70 is available. The housing webs are positively connected to each other, in the example shown also by a dovetail connection. In contrast to the dovetail connection the form-fit connection acts in the axial direction between the housing web and housing modules, and for this the coupling structures 65, 66 (dovetail-shaped projection 65, corresponding recess 66) do not prevent any relative displacement in the radial direction. Rather, the stability against such shifts in the assembled state of the lock cylinder comes from the lock cylinder as a whole and in particular from that housing module which is guided over the shear surface between the housing web modules, in the example shown the inner housing module 70.

Figures 11 and 12 illustrate further possibilities for the design of the housing bridge and the choice of the overall length of the lock cylinder. The housing web of the embodiment of Fig. 11 shows the overall length of the basic twin cylinder embodiment of the Figures 1-3 , 6 and 7 but is in several parts with a first housing web module 61, a second housing web module 62 and a central part 63 which has the fastening opening 51. If the lock cylinder is to be longer, either the second housing web module 62 can be replaced by a corresponding longer housing web module (see below Fig. 12 ) can be replaced and / or a housing web-module intermediate part can be used (see also below Fig. 12 ).

The embodiment of Fig. 12 builds on that of Fig. 8-10 on, but additionally has a housing web module intermediate part 64 and a further inner housing module 70 of the same length in order to achieve an even greater overall length. Coupling device 12 and hub 13 are correspondingly extended even further.

Figure 13 shows schematically alternative undercut coupling structures with a projection 21 in the manner of a rail with a rail head and a corresponding recess 22 in the counterpart. In general, coupling structures are suitable which define an undercut in the section perpendicular to the axis and which, for example, are translationally symmetrical at least in regions along the axial direction.

Figure 14 illustrates an optional further principle, the figure being only schematic and the housing module (s) 7 and the elements supported by it / them not being shown in detail. A fastening bolt 71 which serves to fasten the housing web 6 and thus the lock cylinder in a door or the like. The fastening bolt 71 has an incision 72 which is blocked by the fixing pin 35, so that the fastening bolt can only be removed when the fixing pin is pushed inward against the spring force. The fixing pin 35 thus has a double function in this embodiment.

The fastening bolt 71 (cross pin) can also serve as protection against attacks (pulling out the cylinder) and is supported, for example, behind a long safety shield or a rosette and, due to the construction illustrated above, does not have to be pressed in, screwed, caulked or glued. Due to the described holder by the spring-loaded fixing pin 35, it can also be easily exchanged at any time, and if it is not needed, it can also be omitted entirely.

In addition, regardless of this and as an optional feature for all embodiments, in the embodiment of FIG Figure 13 the arrangement of the coupling structures compared to those described above Conversely, embodiments: the housing module 7 forms the coupling projection 21 and the housing web forms the corresponding recess 22.

Figure 15 In contrast to what has been described above, shows two principles that can be implemented as optional features independently of one another.

First, in the embodiment of FIG Fig. 15 the lock cylinder does not have a stator separate from the housing module 7. Rather, the housing module 7 itself forms the stator and for this purpose has a plurality of radial bores, which in the basic state are aligned with corresponding bores in the rotor 4, with pairs of tumblers and spring-loaded counter-tumblers being arranged in the aligned bores in the housing module 7 and rotor 4 which can be positioned in a manner known per se by a suitably coded key so that they allow rotation of the rotor 4 in the housing module 7. Such a structure with a housing module 7 that also serves as a stator enables larger-sized tumbler-counter tumbler pairs than if, as in the previous embodiments, the stator is rotationally cylindrical, since, as illustrated, the corresponding bores can extend into the area running towards the housing web. Therefore, this embodiment is also particularly well suited for locking cylinders for pointed keys, deviating from what is shown.

The second in Fig. 15 The illustrated principle relates to the attachment of the housing modules 7 to the housing web 6. The coupling structures each comprise an undercut coupling recess in the housing module 7 and in the housing web 6 and a separate coupling element 81, which in the illustrated embodiment is butterfly-shaped in cross section and engages in the two undercuts formed by the coupling recesses .

In the exemplary embodiments shown, the coupling structures are each translationally symmetrical with regard to axial displacements. But that is not necessary. It is only necessary that the coupling structures allow a translational movement in the axial direction. This can, for example, also be brought about by a coupling structure having a plurality of axially spaced heads which engage in a translationally symmetrical coupling recess, or conversely, a coupling structure has a translationally symmetrical coupling projection which is encompassed by a plurality of coupling pliers spaced apart in the axial direction becomes. Knowing the concept according to the invention, the skilled person will be able to think of many suitable structures.

Claims (16)

Lock cylinder with a rotor (4) which is rotatably guided in a stator (3) and in which there is a key channel (5) into which a key can be inserted from the outside, the rotor (4) and stator (3) having an axis ( 20), characterized by a housing web (6) and at least one housing module (7) in which the stator (3) is mounted or which forms the stator, and by coupling structures which couple the housing module (7) to the housing web in such a way that that they allow a movement of the housing module (7) relative to the housing web (6) parallel to the axis (20), but prevent movements in other directions by means of a form fit. Lock cylinder according to Claim 1, having an insert part (2) which has the stator (3) and the rotor (4) and which is inserted into the housing module. Lock cylinder according to claim 1, wherein the housing module (7) forms the stator and has a plurality of radial bores which, in a basic state, are aligned with corresponding bores in the rotor (4), wherein in the aligned bores in the housing module (7) and rotor (4 ) Pairs of tumblers and spring-loaded counter tumblers are arranged. Lock cylinder according to one of the preceding claims, wherein the coupling structures (21, 22, 81) form a dovetail or T-slot connection. Lock cylinder according to one of the preceding claims, wherein the housing web (6) is provided with a first coupling structure (21, 22) and the housing module (7) is provided with a second coupling structure (22, 21), the first and second coupling structures interlocking positively. Lock cylinder according to one of claims 1-4, characterized by a coupling element (81) which cooperates with a housing web-side coupling structure and with a housing module-side coupling structure in order to couple the housing module to the housing web. Lock cylinder according to one of the preceding claims, comprising two housing modules (7) which can be coupled to the housing web (60) and which each receive the rotor (4) and stator (3) or form the stator, so that the lock cylinder is a double lock cylinder. Lock cylinder according to one of the preceding claims, comprising a fixing pin (35), is present in a cavity which is formed by a first fixing hole (31) in the housing web (6) and a second fixing hole (32) in the housing module (7) aligned therewith, wherein the fixing pin (35) extends over a shear surface between the housing module and the housing web. Lock cylinder according to claim 8, wherein the fixing pin is pressed radially outwards by the spring force of a spring (34) and wherein the housing web (6) has an access opening (37) to the first fixing hole (32) through which a tool is attached to the fixing pin (35 ) can attack around this against the spring force radially inward and from said To move the shear surface away in order to enable the housing module (7) to be released from the housing web (6). Lock cylinder according to claim 8 or 9, having a fastening bolt (71) which runs transversely to the axis (20) through the housing web (6) and has an incision (72) which is blocked by the fixing pin (35) so that the fastening bolt (71 ) can only be removed if the fixing pin is moved away from its installation position. Lock cylinder according to one of the preceding claims, comprising a two-part drill protection which is formed by a first drill protection pin (43) and a second drill protection pin (44), the first drill protection pin (43) in a first drill protection bore (41) in the housing web (6) and the second anti-drilling pin (44) is formed in a second anti-drilling bore (42) in the housing module (7). Lock cylinder according to one of the preceding claims, wherein the housing web (6) is composed of a plurality of housing web modules (61, 62, 63, 64). Modular lock cylinder system for forming a lock cylinder according to one of the preceding claims, having at least a plurality of housing modules (7) in each of which a stator (3) with a rotor (4) rotatably present therein is mounted or which form such a stator, characterized by a plurality of housing webs (6) and / or housing web modules (61, 62, 63, 64) to form a housing web, and by coupling structures, coupling one of the housing modules (7) in each case allow a housing web in each case so that they allow a movement of the housing module (7) relative to the housing web (6) parallel to the axis (20), but prevent movements in other directions by a form fit. System according to Claim 13, having a plurality of the housing webs (6), at least two of the housing webs (6) differing in length. System according to claim 13 or 14, comprising a plurality of the housing web modules (61, 62, 63, 64) with at least two of the housing web modules (61, 62, 63, 64) differing in length and / or with at least one the housing web module (63, 64) forms a central part or intermediate part which is designed for coupling a further housing web module on each side. System according to one of claims 13-15, comprising a plurality of the housing web modules (61, 62, 63, 64) with at least two of the housing web modules (61, 62, 63, 64) being positively locked with respect to axial directions Connection can be connected to one another.

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