EP3085859A1 - Variable lock cylinder - Google Patents

Abstract

The present invention relates to a variable cylinder body (100) for electronic locking systems, in particular for electronic lock cylinders, wherein the cylinder body comprises: a central module (10) and at least one outer-side termination module (20) and / or an inner-side termination module (30), wherein between middle module (10) and the outer side termination module (20) and / or between the center module (10) and the inside termination module (30) any number of extension modules (40) can be inserted. A first of the modules (10, 20, 30, 40) can be fixedly connected to a second of the modules (10, 20, 30, 40) by an axially arranged connecting element (50), wherein a foot part (51) of the connecting element (50 ) is firmly connected to the first module in the axial direction of pull, and a head part (52) of the connecting element (50) is axially movably inserted in the second module and by a radially inserted into the second module Verspannelement (53) against the head part ( 52) acts in the pulling direction, that a tensile stress is built up, which acts against the head part (52) in the pulling direction, that this tension in the connecting element (50) is constructed and a corresponding counterforce pushes the head part and any extension modules (40) against the center module ,

Description

The invention relates to an extendable lock cylinder, in particular an extendable cylinder body for electronic locking systems such as electronic lock cylinder. More particularly, the invention relates to extendible cylinder bodies for electronic double knob cylinders or single knob cylinders.

BACKGROUND OF THE INVENTION

Typically, mortise locks are provided according to DIN 18251 for doors with mechanical locking cylinders according to DIN 18252. Such lock cylinders have a cylinder housing and therein a cylinder core, which can be rotated with a matching key in the housing and moves out of the cylinder housing cam (driver) moves to unlock or lock the lock. There are various types such as profile cylinder, round cylinder, oval cylinder (see also DIN EN 1303). The lock cylinder is today the heart of the security of lock and door.

In addition to the mechanical lock cylinders, electronic lock cylinders are also known in the prior art. Electronic lock cylinders are generally characterized by the fact that instead of the mechanical coding of the key an electronic coding, e.g. is used in the form of electrical signals. Instead of a mechanical key for this purpose, an "electronic key" is used in the form of a transmitter or transponder, which transmits electrical signals by means of electromagnetic waves from the transponder or transmitter to the lock cylinder. The signals are verified by means of an electronic device, the electronic device usually being housed in a knob or in two knobs provided on the lock cylinder or profile cylinder. The knob or the knobs are preferably used in addition to the accommodation of electronic components as a handle for actuating the lock cylinder and its cam.

So revealed the DE 198 51 308 a lock cylinder with a cylinder housing which can be inserted into a door lock, a locking bit rotatably mounted relative to the housing for actuating closing devices of the door lock, a door-side handle for actuating the lock bit and a door-outside handle for actuating the lock bit when the access authorization is established.

The length of the built-in lock cylinder should preferably correspond to the respective door thickness (door leaf), since the cylinders should not protrude for safety reasons and for aesthetic reasons as possible over the door leaf or the door fitting or be mounted too deep inside the door. In addition, the length of the cylinder body is also dependent on the thickness of the door fitting. For example, a lock cylinder that is too short can not be fitted if a wider door fitting is used.

Adapted to the different door thicknesses or door fittings, lock cylinders with different lengths are therefore offered on the market. For example, mechanical lock cylinders are offered, which are sold in a few mm increments to the different door thicknesses. Each special lock cylinder is then used only for a certain door thickness. This has the consequence that finished lock cylinders of different lengths must be produced and stocked in the warehouse, but this leads to high manufacturing and storage costs.

In order to defuse this problem, various manufacturers of mechanical lock cylinders now have module cylinders on offer, which allow the dealer or the user to manufacture self-contained lock cylinder elements in desired lengths themselves from stock.

However, known systems with which the length of a lock cylinder can be adjusted have the disadvantage that the length adjustment can not be performed by the end user himself. In addition, such systems, which are mounted by a professional, often difficult to dismantle. Thus, many of the known lock cylinder with modular design are not suitable for end users who want to customize the length individually.

In the DE 10 2006 001 267 B3 an elongated cylinder body is described which consists of modules which have mutual guides and which are axially screwed together. The cylinder body consists of a center module and two outside termination modules. On either side of the center module as many extension modules can be screwed. In this solution, the length adjustment is reversible and the assembly and eventual subsequent disassembly of the cylinder are possible. A disadvantage of this solution is the fact that a screw for connecting the modules must be screwed in axially, with a screwing in the axial direction having disadvantages in terms of ease of assembly is associated. A corresponding disadvantage manifests itself in disassembly and reassembly of the cylinder body; here It takes quite a bit of getting used to processes that are not self-evident to the end user.

It is an object of the present invention to provide an elongated cylinder body, the assembly and preferably also disassembly of which is simple, and preferably also can be performed by an end user himself.

SUMMARY OF THE INVENTION

The invention is defined by the features of the independent claims. Further preferred features are defined in the dependent claims.

In addition, the invention will be described in the following preferred aspects. An advantage of the present invention is, for example, in the simple or very simple installation, so that the cylinder body can be extended by an end user / user without expertise even or can be shortened again. Preferably, the invention relates to profile cylinder wherein the axial direction along the length of the cylinder extends. The overall length is the length of a cylinder, measured from the center of its closing lug (usually also the center of the forend screw thread) to the respective closing side. The overall length of a double cylinder basically consists of the dimensions of both sides, while the overall length of a half cylinder consists of a dimension.

According to the invention, a variable cylinder body is provided, preferably for electronic locking systems, in particular for electronic lock cylinders. The cylinder body has a central module and at least one outer-side termination module and / or an inner-side termination module. In the middle module, the cam is preferably rotatably arranged in the central module.

Preferably one, preferably two, three, four or any number of extension modules can be inserted between the center module and the outer terminating module and / or between the center module and the inner terminator, in order to individually adjust the overall length of the cylinder body but also the length outwards or inwards. Preferably, the inside end module is connected to the center module and by an axially arranged fastening bolt. Preferably, the outer-side termination module is connected to the center module and by an axially arranged fastening bolt. The extension module or the extension modules are preferably clamped between the center module and the termination module. In other words, it is preferably sufficient if the connecting element bwz. the mounting bolt engages the center module and the termination module so that a tensile stress is built up between them. Preferably, a foot part of the fastening bolt with a first module is fixed (preferably fixed in the pulling direction), for example, the center module or the termination module. Accordingly, then a head part of the fastening bolt with the second module is firmly connected, for example, the termination module or the center module. This second connection is made by an inserted into the entprechende module or pressed Verspannelement, which is inserted radially inserted into the corresponding module with inserted clamping element and with the head part of the fastening bolt engages so that a tension of the fastening bolt is made in the axial direction.

The length of the fastening bolt is preferably adapted to the length of the extension module and preferably also to the termination module. The fastening bolt is arranged in the axial direction, which means the term of the length of the fastening bolt as well as the modules in the axial direction. The fastening bolt can either have a round profile (cut perpendicular to the length) or have a rectangular profile. In addition, the profile can also change over the length, that is, the cross section of the bolt need not be the same over the entire length of the fastening bolt, which can offer significant advantages in terms of assembly.

A preferred and decisive advantage of the present invention lies in the design of the bracing element, which preferably leads to a fixation of the system by simply inserting or inserting into a corresponding slot in a module. The simple insertion allows a simple yet secure installation. In addition, the bracing element can be easily and yet accurately produced. Preferably, the clamping element can be produced by pressing and / or punching, whereby a simple and even cost-effective production method can be used while maintaining the desired tolerances.

In general, the invention relates to a variable cylinder body for electronic locking systems, in particular for electronic lock cylinders, wherein the cylinder body has a central module and at least one outer-side termination module and / or an inner-side termination module. Between the center module and the outer side termination module and / or between the middle module and the inside termination module, any number of extension modules can be inserted according to the invention. For example, one, two, three, four or five extension modules may be employed therebetween. Preferably, it is also possible that a termination module directly on the center module can be attached, ie, it is used no extension module in between. In addition, a person skilled in the art will recognize that a different number and also modules of different lengths (measured in the axial direction) can be used on the inside and outside.

Preferably, a first of the modules is fixedly connected to one another by an axially arranged connecting element with a second of the modules. For example, the connector may be a mounting bolt, as discussed in greater detail below. In addition, it is inventively preferred that the connecting element or the fastening bolt is not screwed, which is particularly preferred in view of a simple assembly.

The connecting element preferably has two ends with respect to the longitudinal extent, wherein one end should be referred to as a foot part and the other end as a head part. The connecting element is connected for mounting with the first module, preferably in an axial pulling direction. This connection need not be fixed during assembly, that is, axial displacement is possible. However, if the cylinder body is finally mounted, then a tensile stress between the middle module and termination module is made by the connecting element, so that these two modules and preferably also arranged therebetween extension modules are firmly pressed against each other, or are firmly mounted together. In order to achieve this tensile stress, the head part of the connecting element or of the fastening bolt in the second module is axially movably inserted during assembly and by a radially inserted into the second module Verspannelement which acts against the head part, or with the head part is engaged , strained or fastened. In other words, inserted clamping element prevents an axial pulling apart of the two connected modules and preferably generates an axially directed tensile force, which presses the two connected modules against each other. According to the invention, it is preferred if the clamping element is inserted or pressed in and is not screwed in. This facilitates on the one hand the assembly and disassembly and preferably prevents incorrect assembly.

According to a preferred embodiment, the foot part of the connecting element is connected to the central module, preferably firmly connected. The radially inserted clamping element is accordingly preferably inserted in the inside end module or the outside end module in order to fix the head part of the connecting element (or fastening bolt) in an axial direction.

Preferably, a tensile stress is built up by the connecting element in cooperation with the bracing element which acts against the head part in the pulling direction (axially), that this tensile stress is built up in the connecting element and a corresponding force presses the head part and any extension modules against the center module.

Alternatively, it is also conceivable that the foot part of the connecting element is connected to the inside end module or outside end module, preferably firmly connected. The radially inserted clamping element is accordingly preferably inserted in the central module in order to fix the head part of the connecting element (or fastening bolt) in an axial direction.

The connecting element is preferably designed as a fastening bolt. Preferably, the connecting element has a rectangular profile. According to a further preferred embodiment, the connecting element is formed from a plurality of layers of material, wherein preferably each of the layers is formed by stamping and / or compression molding.

The biasing member preferably has a recess at a first end for engaging the head portion of the connector to provide the tensile force. The bracing element has, preferably and at a second end, an opening into which, for example, an assembly tool, for example a rod for assembly or disassembly, can be inserted. According to the invention, the bracing element is inserted radially. This can also be done, for example, by hand or with the aid of a hammer. The bracing element is preferably constructed so that it braces itself in the closure module. This is achieved, for example, in that the bracing element is configured at an angle and braced in the corresponding straight-shaped slot in the end module of the cylinder body. In order to achieve a simple disassembly of this Verspannelements, the Verspannelement can be levered out or pulled out again, for example, with the mounting tool or the rod.

Preferably, the bracing member consists essentially of a plate-shaped member which is preferably bent at a second end out of the plane of the plate-shaped member to clamp in a straight slot in one of the modules of the cylinder body.

The foot part of the connecting element is preferably screwed loosely into the center module. According to the invention, the tensile stress is used to clamp the modules preferably not achieved by a screw, but by the introduction of the Verspannelements. Preferably, the foot part of the connecting element has a hook part to be connected to the center module by hooking. In other words, when the axial tensile force is generated by the connecting element, then the hook part hooks on the center module, whereby a movement in the axial direction is prevented and instead the tensile force is built up. According to a further preferred embodiment, the connecting element on the foot part on a circumferential recess or circumferential groove, wherein in this recess or groove a clamping ring can be used.

According to the invention, the bracing element can preferably be produced very easily. For example, the bracing element may be a flat part, preferably produced by pressing and / or punching.

• Zunächst wird ein Verbindungselement axial in ein Mittelmodul eingesetzt und mit dem Mittelmodul so verbunden, dass das Kopfteil des Verbindungselements nicht mehr in axialer Richtung herausgezogen werden kann. Dies wird beispielsweise dadurch erreicht, dass das Mittelmodul eine axiale Öffnung aufweist, die senkrecht zur axialen Richtung länglich ausgestaltet ist, d.h., länger als breit. Beispielsweise kann sich die längere Richtung von unten nach oben in radialer Richtung zum Zylinderkörper erstrecken. Das Verbindungselement kann beispielsweise so ausgestaltet sein, dass an einem Fußteil des Verbindungselements ein Haken bzw. ein T-förmiger Kopf ausgebildet ist der in einer ersten Position durch die längliche Öffnung in axialer Richtung hindurchgeschoben werden kann. Das Verbindungselement ist dann im Wesentlichen in axialer Richtung ausgerichtet. Wenn das Verbindungselement dann um die eigenen Längsachse, vorzugsweise in axialer Richtung verdreht wird, beispielsweise um 90°, dann kann das Verbindungselement nicht mehr herausgezogen werden, da der Haken bzw. der T-förmige Kopf breiter ist als die Breite der länglichen Öffnung. Das Verbindungselement ist somit zwar noch axial verschiebbar innerhalb der Öffnung angeordnet, kann aber nicht mehr herausgezogen werden.

Finally, the invention also provides a method for assembling a variable cylinder body according to the invention. Preferably, the method according to the invention comprises the following steps:

• First, a connecting element is axially inserted into a center module and connected to the center module so that the head part of the connecting element can not be pulled out in the axial direction. This is achieved, for example, by virtue of the fact that the center module has an axial opening which is elongate perpendicular to the axial direction, ie longer than wide. For example, the longer direction may extend from bottom to top in the radial direction to the cylinder body. The connecting element may for example be designed so that a hook or a T-shaped head is formed on a foot part of the connecting element which can be pushed through the elongated opening in a first position in the axial direction. The connecting element is then aligned substantially in the axial direction. If the connecting element is then rotated about its own longitudinal axis, preferably in the axial direction, for example by 90 °, then the connecting element can no longer be pulled out, since the hook or the T-shaped head is wider than the width of the elongated opening. Although the connecting element is thus still arranged axially displaceable within the opening, but can not be pulled out.

Subsequently, an extension module with a desired axial extent is arranged next to the center module, so that the connection element extends through the extension module in the axial direction. Finally, then the termination module next to the extension module can be arranged so that the head part of the connecting element in the axial direction in the termination module inside extends. The modules are still displaceable in the axial direction. For axial fixation, the bracing element is then inserted or pressed radially into the termination module. The bracing member thereby engages the head portion of the extension module so that tension is developed in the connector and a corresponding force is generated by pressing the termination module and the extension module against the center module.

BRIEF DESCRIPTION OF THE DRAWINGS

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

Fig. 1

eine perspektivische Ansicht eines Zylinderkörpers mit einem Mittelmodul, einem außenseitigen Abschlussmodul und einem dazwischen befestigten Verlängerungsmodul gemäß einer Ausführungsform der vorliegenden Erfindung;

Fig. 2

eine Querschnittsansicht der Ausführungsform aus Fig. 1;

Fig. 3

eine perspektivische Ansicht eines Mittelmoduls gemäß einer weiteren erfindungsgemäßen Ausführungsform mit einem erfindungsgemäßen Befestigungsbolzen;

Fig. 4

eine perspektivische Ansicht der Ausführungsform aus Fig. 3 bei der ein Verlängerungsmodul zwischen Mittelmodul außenseitigen Abschlussmodul befestigt wird;

Fig. 5

eine perspektivische Detailansicht des erfindungsgemäßen Befestigungsbolzen mit einem Verspannelement gemäß der Figuren 3 und 4;

Fig. 6a

eine zur Fig. 2 ähnlich Querschnittsansicht Ansicht jedoch mit einem Verbindungselement gemäß den Figuren 3 und 5; und

Fig. 6b

eine weitere Querschnittsansicht der Ausführungsform der Fig. 6a, jedoch als Querschnittsansicht in Form eines Grundrisses.

Show it:

Fig. 1

a perspective view of a cylinder body having a center module, an outer-side termination module and an extension module mounted therebetween according to an embodiment of the present invention;

Fig. 2

a cross-sectional view of the embodiment of Fig. 1 ;

Fig. 3

a perspective view of a center module according to another embodiment of the invention with a fastening bolt according to the invention;

Fig. 4

a perspective view of the embodiment Fig. 3 wherein an extension module is mounted between the center module outside end module;

Fig. 5

a detailed perspective view of the fastening bolt according to the invention with a Verspannelement according to the FIGS. 3 and 4 ;

Fig. 6a

one to Fig. 2 similar cross-sectional view but with a connecting element according to the Figures 3 and 5 ; and

Fig. 6b

another cross-sectional view of the embodiment of the Fig. 6a , but as a cross-sectional view in the form of a floor plan.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

FIG. 1 shows in a perspective view a part of an inventive expandable cylinder body 100, wherein the cylinder body of the illustrated profile cylinder has a cylindrical or round core portion 101 and the flange portion 102. The cylinder body according to the invention can be used for mechanical lock cylinder, but is preferably used for electronic lock cylinder.

Corresponding electronic knobs or electronic components or actuators or couplings are not shown in the drawings and also not described in more detail, since these components are known to a person skilled in the art and the present invention relates primarily to the extensibility of the cylinder body.

In addition, the shows FIG. 1 only one door outer side end module 20, wherein for simplicity a corresponding inside end module 30 is not shown. It will be apparent, however, to one skilled in the art, that the following statements with respect to the outboard termination module 20 with the corresponding extension modules 40 are respectively applicable to an inboard termination module 30. The position of a corresponding inside end module 30 is shown symbolically only by the curly bracket. However, this does not mean that the outside end module 20 has to be constructed exactly the same as the inside end module 30. For example, different security requirements with regard to the two end modules 30 may be desired or necessary. So on the outside a Bohrschutz be desired, whereas on the inside can be dispensed with a Bohrschutz. On the other hand, it may also be advantageous to provide termination modules 20, 30 in general, which can be mounted substantially identical or exactly identical both on the inside and on the outside of the door , This has the advantage, for example, that a smaller number of different end modules must be produced, which results in lower production costs and lower storage costs. In other words, the inside modules are preferably made the same as the outside modules and are preferably assembled in the same way as the outside modules.

FIG. 1 shows the center module 10 with the forend screw hole 11, which serves to fasten the cylinder 100 by means of forend screw in the door leaf or in the lock case. The center module 10 shown is simplified, ie without the driver (often referred to as a closing nose or cam) is to be arranged in the recess shown in order to operate the lock. Between middle module 10 and outer end module 20, the extension module 40 is inserted.

FIG. 2 shows one to FIG. 1 corresponding cross-sectional view, it can be seen that the cylindrical part (the core portion 101) of the center module 10, the cylindrical part of the outer side end module 20 and the cylindrical part of the extension module 40 have guides 90 to a precise alignment to ensure each other and to prevent displacement in the radial direction or prevent. Additionally or alternatively, guides may also be present in the flange section in order to prevent a lateral displacement of the individual modules. The axial direction A and radial direction R, as they are to be understood in the context of the present application, is in Fig. 2 shown.

In the cross-sectional view of Fig. 2 , which is to be interpreted as an elevation, is a connecting element or fastening bolt 50 in the form of a screw with foot part 51 and head part 52, with which the three modules 10, 40, 20 shown are connected to one another. For example, the fastening bolt may be a commercially available screw. In addition, several head shapes for the head part 52 are possible, for example, a hexagonal head, a cylinder head or a round head. The three modules are interconnected according to a preferred embodiment as follows.

First, the extension module 40 is placed on the center module 10, wherein the above-mentioned guides 90 in the cylindrical part help to properly align the modules with each other; a shift in the radial direction is avoided or prevented. Subsequently, the fastening bolt 50 is performed by the extension module 40 or a corresponding recess 41 or bore in the extension module 40 and the foot part 51 of the fastening bolt 50 attached to the center module 10. According to a preferred embodiment, the foot part 51 of the fastening bolt 50 is simply screwed into a corresponding bore in the central module 10. The hole in the middle module may be, for example, a through hole (as shown) or a blind hole. The advantages of this embodiment lie in the simple configuration of a threaded hole in the central module 10 and the corresponding configuration of a thread on the foot part 51 of the fastening bolt 50. According to the invention, it should preferably be ensured that the penetration depth of the foot part into the center module is very accurate, so that the distance from the Center module to the head portion 52 of the mounting bolt corresponds to a predetermined distance "1" to ensure the fixation means Verspannelement 53.

After the fastening bolt 50 has been passed through the recess 41 of the extension module 40 and connected to the center module 10, the outer side termination module 20, in which a recess 21 is provided, is slid with this recess 21 over the head portion 52 of the fastening bolt. Again, the guide 90 in the cylindrical part of the end module 20 helps to properly locate the modules in the axial direction. According to an exemplary embodiment, the Recess 21 be formed as a blind hole in the radial direction in the flange 102. Preferably, the head portion 52 of the fastening bolt 50 within the recess 21 of the outer end module 20 in the axial direction A has a small clearance, which in FIG. 2 represented by the reference numeral 22. Subsequently, the bracing member 53 is radially inserted from below into the recess 23 formed in the flange portion 102 of the outer side end module 20, so that the bracing member engages with the head portion 52 of the fastening bolt 50 and axially displaces the modules 10, 40 and 20 prevented. The outside is completely assembled.

A decisive advantage of the present invention is that after merging the modules, the attachment is achieved very simply by only one clamping element 53 is inserted / inserted radially into the outer side termination module 20. The assembly is very easy. For example, an end user recognizes the correct assembly because the clamping element 53 is preferably inserted flush with the underside of the flange portion 102 of the end module. This can be ensured in a simple manner that the modules are connected correctly by an end user. Known screw solutions often have the disadvantage that a correct installation can be dependent on the torques with which the screws are screwed. If, for example, a screw with too high a torque is screwed in, then this screw is in a too "deep" position.

As already stated above, the embodiment of a threaded fastening bolt 50 on the foot part 51 has advantages in terms of manufacturing costs. A disadvantage of this solution, however, is that the depth of engagement of the fastening bolt 50 in the center module 10 may possibly vary slightly, depending on the torque with which the end user screws the fastening bolt 50 into the central module 10. According to the invention, this uncertainty can be further reduced in that the thread on the foot part 51 has a stop which prevents the fastening bolt from being screwed too far into the center module 10.

According to a further preferred embodiment, this small uncertainty with respect to the length 1 can be further avoided by using a fastening bolt 50 without thread on the foot part 51. FIG. 5 shows, for example, a fastening bolt 50 with a head portion 52 similar to the embodiment of FIG. 2 , The embodiment of the Fig. 5 shows a foot 51, similar to the head 52nd is trained. Both the head part and the foot part are formed substantially T-shaped. In addition, it is advantageous to form the fastening bolt 50 with a rectangular cross-section. This rectangular cross-section can be made simpler, in contrast to round embodiments, for example by pressing or punching. Despite these simple manufacturing methods, it is possible to produce a pin with very exact dimensions, which is preferred for the embodiments according to the invention. Fastening bolts with a round cross-section, for example screws with specially shaped head shapes usually have to be rotated, which leads to increased production costs. Similar to the embodiment of the FIG. 2 First, the foot part 51 of the fastening bolt 50 is connected to the central module 10. For this purpose, the center module 10 may for example have an opening 11 in the form of a slot. As in FIG. 4 shown, and in particular on the inside of the door of the center module, the slot 11 may have the longer extent in the radial direction, here from top to bottom. The T-shaped head part 51 can thus be performed through the slot 11, and then rotated by 90 °, so that the foot part 51 in the rotated position no longer fits through the slot 11 and the head part under tensile load with the center module 10 engages , The extension module 40 to be arranged therebetween is preferably also formed with a corresponding oblong hole. However, it is also conceivable that a larger hole or a larger opening 41 is formed in the extension module 40, since a direct attachment between the fastening bolt 50 and extension module 40 preferably does not occur. In other words, the extension module 40 is preferably clamped only between the center module and an outside or inside termination module. It is thus sufficient if the fastening bolt 50 can be performed by the extension module 40, without coming into direct engagement with the extension module 40 itself. As in the embodiment of FIG. 5 illustrated, the fastening bolt 50 may also be waisted and have a waist portion 55 which may preferably serve to rotate the fastening bolt in the slot 11 by 90 °.

In the Figures 3,4 and 5 an embodiment of a clamping element 53 according to the invention is shown, which preferably has the shape of a plate or a small plate. This simple, platelet-shaped embodiment again has the advantage, for example, that the simple and known production method can be used which, in addition, is cost-effective while maintaining a high degree of precision in terms of dimensions.

In the detail of the FIG. 5 the clamping element 53 is shown with respect to the head part 52. FIG. 3 shows a similar view, but the bolt 50 already arranged in the center module 10. FIG. 4 shows similar to the FIG. 1 a perspective view of a portion of the cylinder head 100, wherein the extension module 40 between the center module 10 and the termination module 30 is arranged. Similar in the FIG. 3 can be seen in the center module 10 of the fastening bolts 50, in particular the foot part 51. In the closure module 20, in the flange portion 110, the recess 23 is shown, into which the clamping element 53 is inserted (shown in FIG FIG. 4 by the double arrow). The bracing member 53 preferably has two sections, the first section 531 having a recess for engaging the fastening bolt 50 and for securing the fastening bolt 50 in the axial direction. The second portion 532 is preferably for inserting or removing the clamp member 53. In the illustrated embodiment, the second portion 532 is shown unwound from the first portion 531, thereby providing tensioning of the tension member 53 within the slot 23. For example, it can be prevented that the bracing element can inadvertently slip out of the slot 23. In addition, a round opening 533 is shown on the second section, which can serve, for example, to simply remove the bracing element 53. For this purpose, for example, a round rod (not shown) is inserted into the opening 533 and levered out of the inserted position by means of leverage.

The Figures 6a and 6b show the position of the connecting element 50 according to the invention according to FIG. 5 in two different mutually perpendicular cross-sectional views in the clamped state in the cylinder body. FIG. 6a corresponds to an outline, whereas Fig. 6b corresponds to a floor plan. Both the head part and the foot part are formed substantially T-shaped, wherein both T-shaped heads are formed in the same plane. Again, the fastening bolt 50 is correspondingly flat in one plane (see Fig. 6a ) and the T-shaped heads are only in the Fig. 6b visible, noticeable. Also, fastening bolts should be formed with a rectangular cross-section, ie, rectangular, if one were to cut the fastening bolt along a plane perpendicular to the axial longitudinal extent of the bolt. This rectangular cross-section can be made simpler, in contrast to round embodiments, for example by pressing or punching. In addition, it may be advantageous to connect several layers together to a fastening bolt.

Similar to the embodiment of the FIG. 3 First, the foot part 51 of the fastening bolt 50 is connected to the central module 10. For this purpose, the T-shaped head part 51 can be performed by a corresponding elongated opening 11, and then rotated by 90 °, so that the foot part 51 can not be pulled out in the rotated position through the slot 11, the head part comes under tensile load the center module 10 in engagement. The extension module 40 to be arranged therebetween is preferably also formed with a corresponding oblong hole. However, it is also possible that a larger hole or opening 41 is formed in the extension module 40, since a direct attachment between the fastening bolt 50 and extension module 40 preferably does not occur. This is, for example, through the gap 49 in FIG Fig. 6b exemplified. Again, it is sufficient if the mounting bolt 50 is feasible through the extension module 40 without coming into direct engagement with the extension module 40 itself. As in the embodiment of FIG. 6b illustrated, the fastening bolt 50 may also be waisted and have a waist portion 55 which may preferably serve to rotate the fastening bolt in the slot 11 by 90 °.

The invention also includes the exact or exact terms, features, numerical values or ranges, etc. when, above or below, these terms, features, numerical values or ranges are used in conjunction with terms such as, for example. "about, about, essentially, in general, at least, at least", etc., were called (ie, "about 3" should also "3" or "substantially radially" should also include "radial"). The expression "or" means moreover "and / or".

Claims (9)

Changeable cylinder body (100) for electronic locking systems, in particular for electronic locking cylinders, the cylinder body comprising: a central module (10) and at least one outer-side termination module (20) and / or an inner-side termination module (30), wherein between center module (10) and outer end module (20) and / or between central module (10) and inside end module (30) any number of extension modules (40) can be inserted, characterized in that a first of the modules (10, 20, 30, 40) can be fixedly connected to one another by an axially arranged connecting element (50) with a second one of the modules (10, 20, 30, 40), wherein a foot part (51) of the connecting element (50) is fixedly connected to the first module in the axial direction of pull, and a head part (52) of the connecting element (50) is axially movably inserted in the second module and is acted upon by a tensioning element (53) inserted radially into the second module and acting against the head part (52) in the pulling direction. that a tensile stress is developed, which acts against the head part (52) in the pulling direction, that this tensile stress in the connecting element (50) is constructed and a corresponding counterforce pushes the head part and any extension modules (40) against the center module. A variable cylinder body (100) according to claim 1, wherein i) the foot part (51) of the connecting element (50) is fixedly connected to the central module (10), and ii) the radially inserted clamping element (53) in the inside end module (30) or outside end module (20) is inserted in order to fix the head part (52) of the connecting element (50) in the axial direction. Changeable cylinder body (100) according to one of the preceding claims, wherein the connecting element (50) has a rectangular profile and is preferably formed from a plurality of material layers. A variable cylinder body (100) according to any one of the preceding claims, wherein the biasing member (53) has a recess (535) at a first end (531) for engaging the head portion (52) of the connector (50). Changeable cylinder body (100) according to one of the preceding claims, wherein the bracing element (53) at a second end (532) has an opening (533), preferably a round opening into which a rod for assembly or disassembly can be inserted. A variable cylinder body (100) as claimed in any one of the preceding claims, wherein the biasing member (53) consists essentially of a plate-shaped member which is preferably bent at a second end (532) out of the plane of the plate-shaped member to engage in a straight slot (23 ) in one of the modules (10, 20, 30, 40) of the cylinder body to brace. Changeable cylinder body (100) according to one of the preceding claims, wherein the foot part (51) of the connecting element (50) i) is loosely screwed into the center module (10); ii) a hook portion (51) to be connected to the center module (10) by hooking in the axial direction of pull, or iii) has a circumferential recess into which a clamping ring can be inserted. Changeable cylinder body (100) according to one of the preceding claims, wherein the bracing element (53) is a flat, preferably produced by pressing and / or punching part. Method for assembling a variable cylinder body (100), in particular an axially extendable cylinder body according to one of the preceding claims, comprising the steps: - axially inserting a foot part of a connecting element (50) in a central module (10); Arranging an extension module (40) adjacent to the center module (10) so that the connection element (50) extends through the extension module (40) in the axial direction; Arranging a termination module (20, 30) adjacent to the extension module (40) so that a head portion (53) of the connection element (50) extends axially into the termination module; - Radially pushing or pressing a Verspannelements (53) in the termination module (20, 30), so that the Verspannelement with the head part (52) of the connecting element (50) engages in the connecting element (50) and a tensile stress is built up corresponding force is generated with which the closure module (20, 30) and the extension module (40) are pressed against the center module (10).

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