Fitting assembly with a fixing element and mechatronic locking system comprising said locking assembly

Abstract

The invention relates to a fitting assembly for a mechatronic locking system for transmitting a rotary movement. The fitting assembly comprises a polygon 1, a polygon receptacle 2, and a fixing element 6, wherein the polygon is fixed in a recess 2 of the polygon receptacle 3 by the fixing element 6. The fixing element 6 includes a retaining area 6.1 and a projection 6.2. The polygon receptacle 2 has a circumferential surface 9 and an opening 10 extending radially from the circumferential surface 9 into the recess 3, perpendicular to a longitudinal axis 4 of the recess 3. The retaining area 6.1 at least partially encompasses the circumferential surface 9, thereby holding the projection 6.2 in a position extending through the opening 10 into the recess 3. The fixing element securing the polygon is inaccessible from the outside when the fitting assembly is mounted.

Description

[0001] The invention relates to a mechatronic locking system for controlling access to a closed area. The locking system is particularly designed for use on an object, for example, a door or a window.

[0002] Mechatronic locking systems and associated fitting arrangements differ from purely mechanical locking systems and associated fitting arrangements due to their different design.

[0003] For example, mechanical locking systems typically have independent components for verifying access authorization, particularly a lock cylinder, whereas in many mechatronic locking systems, the unlocking mechanism is combined with an access authorization verification mechanism. This leads, for instance, to the use of completely different locking / coupling mechanisms and fitting arrangements, as well as different installation and interaction of these components in mechatronic versus mechanical locking systems.

[0004] Such differences mean that concepts and components cannot be readily transferred from mechanical locking systems to mechatronic locking systems and vice versa. The present invention relates to mechatronic locking systems.

[0005] DE 69002677 T1 discloses an operating handle such as is used in mechanical locking systems for doors, windows, or the like. The operating handle shown comprises a set of levers, with a first lever mounted on an inner surface and a second lever mounted on an outer surface of the door or window. The operating handle further comprises an operating rod, an elastic connecting element, and means for compensating for differences in the thickness of the doors or French doors. The operating rod extends straight through the door or window and allows at least one locking element to be actuated. The two ends of the operating rod are inserted into holes provided in the shaft of each lever, and one end is fixed in the corresponding hole by the elastic connecting element.

[0006] WO 2012 / 045702 A1 discloses a device for manually opening and closing a locking unit attached to a frame. The device according to WO 2012 / 045702 A1 also has an actuating rod that extends through the frame and is fixed in actuating elements mounted on both sides of the frame. To enable quick and easy attachment of the device to the frame, it has specially designed clamping means with which the actuating rod can be fixed in a retaining element and the retaining element in the actuating element.

[0007] Hardware assemblies for mechatronic locking systems typically include at least one actuating element, such as a handle, door handle, or knob. This actuating element initiates a rotary movement. A primary function of the hardware assembly is to transmit this rotary movement to the locking system and ultimately to a bolt that secures the door. For this to occur, the actuating element must be rigidly connected to an element that transmits the rotary movement into the interior of the locking system. This transmitting element, in turn, must be rigidly connected to a coupling mechanism that translates the rotary movement into a directed and reversible movement of the bolt.

[0008] The transmitting element is usually a polygon, a mandrel, or a spindle. These terms will be used synonymously below.

[0009] The rotary movement of the transmitting element is usually a rotation of the same around its longitudinal axis, whereby this longitudinal axis coincides with a rotational axis of the actuating element.

[0010] During operation, the actuating element and the transmitting element not only experience a torque that initiates the aforementioned rotary movements, but they are also subjected to forces along the axis of rotation (longitudinal axis of the transmitting element), for example, when opening the door, but also in the event of improper operation or manipulations aimed at unauthorized opening. This must be taken into account for all connections that transmit rotary movements.

[0011] In commercially available hardware assemblies for mechatronic locking systems, such connections are generally based on the insertion of the transmitting element into a counterpart, i.e., the actuating element or the coupling mechanism, and securing it with a setscrew. For this purpose, the counterpart has a corresponding bore penetrating its wall, and the transmitting element has a corresponding bore or recess. A disadvantage of this type of connection is that the setscrew can loosen over time, leading to a loose transmitting element and ultimately to failure of the hardware assembly or the locking system. This is particularly likely to occur if the transmitting element moves so far from its intended position that it is no longer inserted into the counterpart.Another disadvantage of such connections is that during the installation of the fitting assembly, it is impossible to determine whether the transmitting element is correctly oriented, i.e., whether the setscrew engages in the hole or recess. Incorrect orientation leads to the failure of the fitting assembly after a short time.

[0012] These disadvantages can lead to acute problems, particularly in the connection between the transmitting element and the coupling mechanism, which cannot be remedied by the user, because this connection – unlike the connection between the transmitting element and the actuating element – ​​cannot be tightened from the outside.

[0013] The invention therefore relates to a mechatronic locking system with a fitting arrangement with a fixing element, which increases the reliability of connections between the transmitting element and the coupling mechanism, which cannot be directly accessed from the outside in a mounted locking system.

[0014] Additionally or alternatively, such a fitting arrangement with said fixing element can also increase the reliability of other connections, for example, those between the transmitting element and the actuating element.

[0015] EP 2299037 A1 discloses a mechanical connecting element that couples to a body with a cavity, without the use of set screws. The connecting element comprises a seat and a retaining element, which is at least partially located within the seat. The seat is designed so that the retaining element can be moved between a first and a second position. In the first position, the retaining element allows the connecting element to be inserted into the cavity. In the second position, the retaining element prevents the inserted connecting element from being pulled out by bearing against an inner surface of the cavity and against a surface that closes off the seat from below. To enable the coupling between the connecting element and the body to be established and, if necessary, released, the connecting element includes further components, such as an elastic element and means for releasing the coupling.Furthermore, the connecting element has a complex shape to allow the insertion of other components and their subsequent function. Consequently, the connecting element exhibits a certain degree of complexity, which also increases the manufacturing and assembly effort. Moreover, according to the teaching of EP 2299037 A1, a positive-locking connection between the connecting element and the body is not established, which can negatively affect the tensile strength.

[0016] EP 2206856 A2 shows an actuating handle comprising a grip with an actuating polygon axially fixed within it. The actuating polygon is axially fixed to a bushing by means of a locking element designed as a toothed ring. This allows the polygon to be inserted into the bushing in one direction, while preventing it from being pulled out in the opposite direction. This type of fixing has the disadvantage that the connection cannot be loosened without causing damage.

[0017] The object of the present invention is to provide a mechatronic locking system which overcomes disadvantages of the prior art.

[0018] It is particularly an object of the invention to provide a locking system with a fitting arrangement in which a transmitting element, for example a polygon, can be locked onto a counterpart, in particular onto the coupling mechanism, wherein the locking is permanent and has a high tensile strength and wherein the fitting arrangement has a number of components that is equal to or smaller than that of comparable fitting arrangements.

[0019] Furthermore, it is an object of the invention to provide a locking system with a fitting arrangement that is easy to assemble and in which the risk of incorrect assembly is reduced.

[0020] It is further an object of the invention to provide a locking system with a fitting arrangement in which individual components can be removed and in which individual components can be integrated into existing fitting arrangements, in particular those using grub screws, so that these can be retrofitted.

[0021] At least one of these problems is solved by the invention as defined in the patent claims.

[0022] In this text, the term "polygon," often used in connection with locking systems and fitting arrangements, refers to an element that transmits a rotational movement. This is not intended to be restrictive, particularly not to a specific cross-sectional shape. Rather, in this text, the term "polygon" can be replaced by the term "transmitting element." Furthermore, the characteristics that are subsequently illustrated using the polygon as an example also apply analogously to other elements that transmit a rotational movement.

[0023] The fitting assembly of the mechatronic locking system serves to transmit a rotary movement around a rotational axis. The fitting assembly comprises a polygon, a polygon receptacle, a first actuating element, and a second actuating element. The rotary movement can be initiated, for example, by a user by actuating an actuating element, in particular a door handle or rotary knob.

[0024] The fitting arrangement may in particular be a door fitting arrangement.

[0025] The polygon and / or actuating element can be part of an external or internal fitting.

[0026] The polygonal receptacle has a recess with a longitudinal axis along which the polygonal can be inserted, in particular slid, into the recess.

[0027] A polygon inserted into a polygonal receptacle interacts with the receptacle in such a way that a rotational movement of the polygon about a longitudinal axis of the polygon leads to a rotation of the polygonal receptacle about its longitudinal axis, and vice versa. In particular, the polygonal receptacle can be a form-fitting counterpart to an end region of the polygon.

[0028] The first actuating element is designed to open into a first flat side of an object on which the locking system is mounted or can be mounted, or of an element belonging to the locking system or fitting arrangement.

[0029] The second actuating element is designed to open into a second flat side of the object or of an element belonging to the locking system or fitting arrangement.

[0030] The opening on the first flat side defines a first level up to which elements of the mounted fitting assembly are freely accessible. The opening on the second flat side defines a second level up to which elements of the mounted fitting assembly are freely accessible.

[0031] The object in question is, for example, a door or a window. A housing containing parts of the locking system is an example of a locking system element with a flat side. Finally, a fitting plate or a cover is an example of another element that can be part of the fitting assembly and that can have a flat side.

[0032] "Freely accessible" means that elements can be seen and, for example, manipulated from the side where the operating element of the relevant flat surface is located, without any prior manipulation of the fitting arrangement, the locking system, or the object itself. Accordingly, an element is "not freely accessible" (synonymous with "inaccessible") if it cannot be seen or manipulated from said sides in the aforementioned sense.

[0033] The fitting assembly further comprises a fixing element with which the polygon can be fixed in the recess in such a way that movement of the polygon along its longitudinal axis is prevented. In particular, a polygon inserted into the polygon receptacle and fixed therein by the fixing element cannot be removed from the recess by a force directed solely along the longitudinal axis of the recess.

[0034] The fixing element has a holding area and a projection. For example, the fixing element can have two holding areas that extend from the projection opposite each other. In this case, the projection and holding areas can lie in the same plane. Additionally, the holding areas can be configured so that, in a cross-section through the fixing element along said plane, they define an interior region in which the projection is located.

[0035] The polygonal receptacle has a circumferential surface and an opening. The opening is a continuous opening extending from the circumferential surface to the recess, and runs radially to the longitudinal axis of the polygonal receptacle.

[0036] The circumferential surface is formed by areas of the polygonal recess which are located on the outside relative to the recess and have a maximum radial distance from the longitudinal axis.

[0037] The holding area of ​​the fixing element encompasses the surrounding surface at least partially in such a way that the extension, or the fixing element, is held in a position in which the extension reaches through the opening into the recess.

[0038] The holding area encompasses the surrounding surface, in particular in such a way that it rests on the outer surface of the surrounding surface.

[0039] When the locking system and fitting assembly are installed, the parts of the fitting assembly that contribute to the transmission of the rotary movement, in particular the polygonal receptacle and the fixing element, cannot be accessed from an external area of ​​the locking system or the fitting assembly.

[0040] In the fitting arrangement, the fixing element that secures the polygon is positioned between the first and second levels.

[0041] This also means that the fixing element, particularly when the hardware or locking system is installed, is positioned between the first and second levels. In other words, the fixing element is not freely accessible from any side of the object, the locking system, or the hardware. It is therefore inaccessible, especially located inside the locking system and / or the object.

[0042] In particular, the fixing element is not accessible from either the first or the second flat side.

[0043] The fixing element can be located in the object, for example in the door leaf, i.e. within the outer surfaces of the door leaf, when the fitting assembly is mounted.

[0044] According to the invention, the rotary motion is transmitted to or from a coupling mechanism, for example to a locking mechanism, in particular a bolt. The coupling mechanism is part of the mechatronic locking system, and when the locking system and fitting assembly are mounted (i.e., in use), the coupling mechanism is also inaccessible from the outside. In other words, the coupling mechanism is located entirely within an enclosed interior space.

[0045] For example, the coupling mechanism can encompass the polygonal receptacle, or the polygonal receptacle can be directly connected to the coupling mechanism in another way, i.e., without an element between the polygonal receptacle and the coupling mechanism, and in a rotationally fixed manner. Furthermore, the holding area of ​​the attached fixing element is itself in direct contact with the polygonal receptacle, or rather its circumferential surface.

[0046] It is also conceivable that the fixing element and the polygonal receptacle, as an alternative or supplement to transmitting the rotary motion to the coupling mechanism, transmit a rotary motion to another component of the locking system or the fitting assembly. In particular, the fixing element can fix the polygon(s) in the actuating element. In this case, the polygonal receptacle is part of an actuating element, for example, a door handle or a rotary knob, with which the rotary motion of the polygon can be initiated. Even in such embodiments, the parts of the fitting assembly contributing to the transmission of the rotary motion, in particular the polygonal receptacle and the fixing element, may not be accessible from an external area of ​​the locking system or the fitting assembly.

[0047] The holding area can have spring-like properties or be elastically deformable.

[0048] The opening can have an axis directed from the surrounding surface towards the recess.

[0049] The opening could, for example, be a hole without threads. In this case, the axis of the opening corresponds to the axis of the hole.

[0050] In one embodiment, the retaining area is spring-loaded, so that the extension can be pushed out of the recess by a force directed along the axis of the opening, with the extension extending back into the recess after the said force is removed.

[0051] The polygonal shape may have a recess. The extension reaching through the opening into the recess can engage in this recess if the polygonal shape and the polygonal receptacle are in a corresponding position relative to each other.

[0052] The indentation can be located particularly in one end region of the polygon. In this end region, the polygon may have a shape that tapers towards the nearer end, for example, rounded, chamfered, or tapered.

[0053] The tapered shape allows the force directed along the axis of the opening to be generated when the polygon is inserted into the recess, pushing the extension out of the recess.

[0054] In other words, in one embodiment the recess is located in an end region of the polygon and the polygon has a shape tapering towards one end of the polygon in this end region, so that when the polygon is inserted into the recess, it exerts said force directed along the axis of the opening on the extension.

[0055] The polygon can only have a tapered shape in the area of ​​the recess, or in an extension of the recess running parallel to the polygon's longitudinal axis. This prevents the polygon from being inserted into the recess in the wrong orientation relative to the polygon's receptacle, as the extension is not pushed out of the recess if it is incorrectly oriented, thus preventing the polygon from being inserted.

[0056] In one embodiment, the circumferential surface in a section perpendicular to the longitudinal axis of the recess and including the axis of the opening has a shape which has a radial distance to an axis encompassing the axis of the opening but extending over the entire polygonal receptacle, which varies along said axis.

[0057] The shape of the retaining area can be adapted to the shape of the surrounding surface. For example, the retaining area can be shaped so that, when attached, it rests flat against the surrounding surface, for example, in a form-fitting manner.

[0058] Furthermore, the retaining area can be spring-loaded, allowing the fixing element to be attached around the surrounding surface. The fixing element can, in particular, be clipped onto the multi-sided receptacle. The fixing element can therefore be a locking clip.

[0059] In combination with the previously described spring-like property of the holding area, which allows the extension to be pushed out of the recess, the holding area can therefore be spring-like in at least two different directions.

[0060] The spring-like properties of the holding area are designed in such a way that the fixing element can permanently assume a position, regardless of its orientation, in which the holding area at least partially encompasses the surrounding surface and in which the extension reaches into the recess.

[0061] The holding area can be so rigid that the fixing element can only be moved from its position by a force acting directly on it. In particular, an acceleration such as occurs with doors is insufficient to move the fixing element from this position.

[0062] In the previously described section, the circumferential surface has, for example, a shape that is at least partially circular. A point on the longitudinal axis of the recess can be the center point of the circular area.

[0063] A retaining area shaped to fit such a circumferential surface can therefore be an open ring. Additionally, the fixing element can be arranged on the open ring such that it projects into an interior area formed by the open ring, and that the retaining area extends in equal lengths on both sides of the fixing element. These two equal-length sections each extend to an end region where the opening of the ring connects. In this embodiment of the fixing element, the retaining area can be resilient in two different directions. A first direction runs along a longitudinal axis of the extension and allows the extension to be pushed out without the fixing element detaching from the polygonal receptacle. A second direction runs along a connecting line between the end regions of the two equal-length sections and allows the fixing element to be attached around the circumferential surface.

[0064] The circumferential surface can have an n-sided, in particular a rectangular, for example square, shape in the aforementioned section.

[0065] The axis of the opening can be a perpendicular bisector of the n-gon.

[0066] In one embodiment, the circumferential surface has a guide in addition to or as an alternative to other embodiments, which guides the holding area during attachment, in particular during attachment along an axis perpendicular to the longitudinal axis of the recess.

[0067] Furthermore, the guide can prevent movement of the fixing element parallel to the longitudinal axis of the recess during or after installation.

[0068] Alternatively, the circumferential surface can have one or more, in particular two, retaining projections which prevent mispositioning of the fixing element.

[0069] The retaining extension can be arranged on the circumferential surface in such a way that, when the fixing element is attached, it is located in an end region of the retaining area.

[0070] The end area of ​​the holding area may have an exception tailored to the holding extension.

[0071] Furthermore, the retaining extension can prevent movement of the fixing element parallel to the longitudinal axis of the recess after it has been attached.

[0072] The mechatronic locking system can include an authentication mechanism designed to restrict access to the object to a limited group of people. Specifically, the authentication mechanism includes verification of access authorization. This authorization verification can be performed from one side of the object or from both sides. In particular, the authorization verification can involve wireless communication between an electronic key held by a user and the authentication mechanism.

[0073] In one embodiment, the polygonal receptacle is part of a coupling element belonging to the coupling mechanism, wherein the coupling mechanism translates an actuation of an actuating element into a movement of a bolt after access authorization has been established.

[0074] The mechatronic locking system can, in particular, have exactly one bolt or exactly one set of bolts (i.e., a "bolt set") whose movements are coupled to one another. These movements are, in particular, translational movements that grant or deny access to an object. The movements are, in particular, synchronous.

[0075] A set of bolts is used, for example, on doors where, in addition to a central bolt in the area of ​​the operating element, further bolts are installed that are offset from the central bolt. This further increases security against unauthorized opening of the door.

[0076] In other words, unlike conventional mechanical locking systems, a mechatronic locking system does not have a bolt or bolt set in addition to a bolt or bolt set connected to the actuator, which serves to prevent unauthorized access. Nevertheless, a mechatronic locking system may incorporate an authentication mechanism, in particular one based on the use of the bolt (or bolt set).

[0077] The coupling mechanism can, for example, have two coupling parts, an inner one connected to a bolt via an inner polygon and an outer one connected to an actuating element via an outer polygon in a rotationally fixed connection. It can be provided that the outer and inner coupling parts are only rotationally fixed to each other when a condition, such as proof of access authorization, is met. For this purpose, the coupling mechanism can have a coupling pin that establishes the rotationally fixed, usually temporary, connection between the outer and inner coupling parts by engaging in a coupling recess of both the outer and inner coupling parts.

[0078] The fitting arrangement has a first (e.g. inner) polygon and a second (e.g. outer) polygon that is different from this one.

[0079] The first (e.g., inner) polygon is designed to transmit a rotary movement of the coupling mechanism to a locking mechanism, in particular to the bolt. The second (e.g., outer) polygon is designed to transmit a rotary movement of the actuating element to the coupling mechanism.

[0080] It is therefore conceivable that the fitting arrangement, or the locking system, does not have a polygon connecting an operating element on one side of the object to an operating element on the other. In other words, there is no polygon that continuously connects one side of the object to the opposite side. Rather, a first segment of the path between the first and second sides is covered by the first (e.g., inner) polygon, and a second segment of this path is covered by the second (e.g., outer) polygon.

[0081] When the fitting assembly is mounted, the first and second polygons can be connected, or connected, via the coupling mechanism.

[0082] As mentioned, the bolt may be the only bolt in the mechatronic locking system.

[0083] The inner coupling part, the outer coupling part, or both coupling parts may have a polygonal receptacle.

[0084] A polygon inserted into a coupling part is fixed, in particular, by means of a fixing element in a previously described embodiment.

[0085] The fitting assembly can further be configured to transmit a rotary movement from the actuating element to the polygon using the fixing element. In this case, the fitting assembly can, alternatively or additionally, have one or more actuating elements with a polygon receptacle, in addition to one or more coupling parts with a polygon receptacle, wherein in each polygon receptacle, one end region of a polygon is fixed using a fixing element.

[0086] In one embodiment, the fitting arrangement further comprises a flat side facing the object. This flat side faces the object when the fitting arrangement is mounted on it.

[0087] The object in question could be, in particular, a door or a window.

[0088] The flat surface facing the object can, for example, be part of a cover used to conceal openings in the object and / or mountings. When attaching the fixing element, the flat surface facing the object is not yet in contact with the object, and the multi-sided receptacle extends far enough beyond the flat surface facing the object that the fixing element can be attached by moving it along the flat surface facing the object.

[0089] The multi-sided mounting extends beyond the object-side flat surface to such an extent that the fixing element can be attached by sliding it along the object-side flat surface.

[0090] The flat surface facing the object itself does not need to be completely flat. For example, it may have means for attaching it to the object.

[0091] It is also possible that the aforementioned flat surface on the object is part of a housing containing components of the mechatronic locking system. These components could include, for example, the previously mentioned coupling mechanism, an authentication system, and / or data transmission means. The housing may be specifically designed to be attached to the outside of the object.

[0092] In one embodiment, the opening extending from the circumferential surface into the recess is a bore for a setscrew, and the extension of the fixing element is dimensioned such that it can be inserted into this bore without rotating around its own axis. This allows the fixing element to be used in existing fitting assemblies where a rotationally fixed connection is achieved using setscrews. This makes it easy to retrofit these assemblies in such a way that many of the aforementioned disadvantages can be overcome.

[0093] When the locking system is installed, the multi-sided receptacle is positioned within the locking system in such a way that the multi-sided receptacle and the fixing element attached to it are inaccessible from the outside.

[0094] The first and second levels, which define which elements or parts of elements of the fitting assembly are freely accessible when the fitting assembly is mounted, can be provided by the following components in the embodiment of the locking system: A housing, which contains, for example, further components of the locking system, is located on one side of the object, and a cover or fitting plate is located on the opposite side. This configuration is particularly common in locking systems where access is granted from one side of the object. Alternatively, there is one such housing on each side of the object. This configuration is particularly common in locking systems where access is granted from both sides of the object.

[0095] In one embodiment, the locking system comprises - as already described - exactly one bolt or exactly one set of bolts.

[0096] In one embodiment, the locking system comprises the coupling mechanism and the locking mechanism. In this embodiment, the (first) polygon can be configured to transmit a rotary movement of the coupling mechanism to the locking mechanism, and the second polygon can be configured to transmit a rotary movement of an actuating element to the coupling mechanism.

[0097] Exemplary embodiments of the invention are described in detail below with reference to the figures. In the figures, identical reference numerals denote identical or analogous elements. The figures show: Fig. 1 ; an exploded view of an embodiment of a fitting arrangement as part of a locking system; Fig. 2 ; a schematic representation of a section through an end region of a polygon and a polygonal mount with an attached fixing element; Fig. 3; a view of a built-in locking system for a door (door, bolt and coupling between bolt and fitting assembly are not shown); and Fig. 4 : a detailed view of a coupling part and a matching fixing element.

[0098] Figure 1 Figure 1 shows an exploded view of an embodiment of a fitting assembly. In this embodiment, the fitting assembly is integrated into a mechatronic locking system 20, which has a coupling mechanism that allows the locking system to be unlocked only after successful authentication. The coupling mechanism has two coupling parts, a first (inner) coupling part 13 (in Figure 4(shown in detail) is connected to a locking bar, and a second (outer) coupling element (arranged in the housing 26) is rotationally fixed to an actuating element 22 (for example, a first one). The two coupling elements are only rotationally fixed to each other after verification of access authorization, such that they rotate about a common axis of rotation. This rotationally fixed connection is temporarily established, for example, by a movable pin.

[0099] The mechatronic locking system 20 shown has a housing 26 in which the coupling mechanism is housed. On the mounting side, for example on the door side if the hardware arrangement shown is used for doors, the housing 26 has a flat surface 21 facing the object and protruding brackets 23 for fastening.

[0100] The fitting arrangement shown has a (first or inner) polygon 1, and the coupling mechanism shown has a polygon receptacle 2 and a fixing element 6.

[0101] A second (outer) polygon present according to the invention is located inside the housing 26 and the control element 22 and is therefore not visible.

[0102] In the illustrated embodiment, the first coupling part has the polygonal receptacle 2. The polygonal receptacle 2 comprises a circumferential surface 9, a recess 3, two opposing openings 10, and a guide 17. The openings 10 extend from the circumferential surface 9 to the recess 3. The openings 10 are defined by an axis 11 and by a radius that is constant along the axis 11 in a section perpendicular to the axis 11.

[0103] Only one opening 10 is required for the functioning and installation of the fitting assembly. The second opening 10 reduces the requirements for the orientation of the various components relative to each other during assembly. Furthermore, two opposing openings 10 facilitate the use of the fitting assembly with an upside-down locking system.

[0104] The openings 10 are arranged along the circumferential surface 9 in such a way that, at least in the rest state of the locking system 20, i.e. when the actuating element 22 is not actuated, the fixing element 6 can be attached in a simple manner, in particular without bumping into another component of the locking system 20 or the fitting arrangement.

[0105] The circumferential surface 9 has the shape of the lateral surface of a vertical circular cylinder with a first radius. The guide 17 is realized by an annular recess in the circumferential surface 9, whereby the circumferential surface 9 has a second radius that is reduced compared to the first radius in the area of ​​the guide 17. In particular, the annular recess does not extend to the door-side end of the polygonal receptacle 2.

[0106] The recess 3 has a longitudinal axis 4 and a square cross-section in a section perpendicular to the longitudinal axis 4.

[0107] The fixing element 6 has a holding area 6.1 and a projection 6.2. The shape of the holding area 6.1 is adapted to the guide 17, or to the circumferential surface 9 if no guide is used. In the illustrated embodiment, the holding area 6.1 has the shape of an open ring with an inner radius that corresponds, within a tolerance, to the second radius (the first radius if no guide is used). The width of the open ring is selected such that the holding area 6.1 fits into the annular recess formed by the guide 17. The thickness of the open ring corresponds to the depth of the annular recess.

[0108] The opened ring extends over a circular arc that spans more than 180°. This means that the opening of the ring extends over a circular segment that is smaller than the circular segment occupied by the ring.

[0109] The holding area 6.1, due to its open shape and the material from which it is made, is designed to have spring-like properties. For example, the holding area consists of a spring steel sheet with a thickness between 0.25 and 3 mm, for example with a thickness between 0.5 and 2 mm, or between 0.75 and 1.25 mm.

[0110] The extension 6.2 is arranged on the retaining area 6.1 such that it projects into the interior area defined by the open ring, and that the retaining area 6.1 extends equally on both sides of the extension 6.2. Both parts of the extension are closed off from the opening of the ring by an end region. These end regions include, in particular, those areas of the open ring that are located at a position defined by an angle greater than 90° relative to the position of the extension.

[0111] By aligning the holding area 6.1 with the guide 17, or with the circumferential surface 9 in embodiments where a guide 17 is omitted, and by the resilient design of the holding area 6.1, the holding area 6.1 can be reversibly deformed so that the distance between the two end areas temporarily increases, such that the holding area corresponds at least to the diameter given by the second (or, if there is no guide, first) radius. This allows the fixing element 6 to be attached to the outside of the polygonal receptacle 2.

[0112] This implementation of the fixing element 6 also results in the fixing element 6 having the same shape before and after attachment. In particular, the fixing element 6 has no areas that can move sustainably relative to each other.

[0113] In the illustrated embodiment, the extension 6.2 is a cylindrical pin with a radius smaller than the radius of the opening 10. The length of the extension 6.2, or of the cylindrical pin, is greater than the length of the through opening 10 along the axis 11. This means that, after the fixing element is attached to the polygonal receptacle 2, the extension 6.2 extends into an inner region of the recess 3.

[0114] In the embodiment shown, the polygon 1 is a square. This has a polygonal longitudinal axis 5 and a cross-section that is square in a section perpendicular to the polygonal longitudinal axis 5.

[0115] To transmit a rotational movement of the polygon 1 about the polygon longitudinal axis 5 to the polygon receptacle 2 and thus to components connected in a rotationally fixed manner, the polygon 1 has an end area which is shaped to fit the recess 3 in such a way that the end area can be inserted into the recess 3 along the longitudinal axis 4 and at the same time tilts in the recess 3 when the polygon 1 is rotated about its polygon longitudinal axis.

[0116] Movement along the longitudinal axis 4 of the polygon 1 inserted into the recess 3 is prevented by the polygon 1 having a recess 16 in its end region.

[0117] The recess 16 is matched to the shape of the extension 6.2 so that, after penetrating the opening 10, the extension 6.2 can engage in the recess 16 to such an extent that the polygon is locked in place by the extension 6.2. Furthermore, the extension 6.2 can engage in the recess 16 to such an extent that the fixing element 6 lies flush against the annular recess, or against the circumferential surface 9, even when the polygon 1 is locked in place.

[0118] As a rule, the fixing element 6 is attached to the polygonal receptacle 2 before the polygonal 1 is locked in the recess 3. For this purpose, the aforementioned end region of the polygonal 1 has a taper 7, which is designed to push the extension 6.2 out of the recess 3 by moving the polygonal 1 along the longitudinal axis 4.

[0119] Figure 2Figure 1 shows a schematic, not-to-scale, cross-section through the end region of the polygon 1 and through the polygon receptacle 2, with the fixing element 6 attached to the polygon receptacle 2. The section plane includes both the longitudinal axis 4 of the recess 3 and the axes 11 of the opposing openings 10.

[0120] The taper 7 extends over a region of the polygon 1 which, in a projection onto a plane perpendicular to the polygon's longitudinal axis 5, has an extent T 1. Since the polygon 1 in Figure 2 Since the polygonal longitudinal axis 5 is already partially inserted into the recess 3, it effectively coincides with the longitudinal axis 4 of the recess 3.

[0121] When the fixing element 6 is attached to the polygonal receptacle 2, the extension 6.2 extends a distance T 2 into the recess 3.

[0122] In order to generate the force required to push the extension 6.2 out of the recess 3 via the polygon 1, and to prevent the extension 6.2 from experiencing a force only along the longitudinal axis 4 when the polygon is inserted, which would prevent correct insertion and locking of the polygon, the distance T 2 by which the extension 6.2 projects into the recess 3 is smaller than the extent T 1 of the taper 7.

[0123] A fitting assembly, for example mounted on a door, has a second actuating element 25 which is connected to the polygon 1 in a rotationally fixed manner.

[0124] Figure 3This shows a locking system with a fitting arrangement for a door, allowing the locking mechanism to be operated from both sides of the door, in its assembled state. For better visualization of the components, the door itself and all components of the locking system within it (locking mechanism, bolt, coupling between bolt and door fitting arrangement, etc.) have been omitted.

[0125] In the door fitting arrangement shown, the second actuating element 25 and an associated cover 24 are attached to the side of the door facing away from the housing 26.

[0126] A side of the housing 26 facing the (first) actuating element 22 forms a first flat side 27 into which the first actuating element 22 opens. In the illustrated embodiment, the first flat side 27 is opposite the object-side flat side 21.

[0127] A side of the cover 24 facing the second actuating element 25 forms a second flat side 28 into which the second actuating element 25 opens.

[0128] The first flat side 27 and the second flat side 28 form the first and second levels, up to which elements of the mounted fitting arrangement and optionally also of the locking system are freely accessible.

[0129] The side of the fixing element 6 facing the object-side flat surface 21 lies in a plane with the object-side flat surface 21 itself after its attachment. This allows the fixing element 6 to be attached by sliding it along the object-side flat surface 21. In combination with the guide 17, this effectively prevents the extension 6.2 from tilting in the opening 10 when the fixing element 6 is attached.

[0130] When installed, the fixing element 6 does not extend beyond the polygonal receptacle 2 thanks to the presence of the guide 17 and the limited wall thickness of the holding area 6.2, which is necessary for the spring-like properties of that area. Instead, the fixing element 6 ensures that the polygonal receptacle 2 and the fixing element 6 form a continuous surface corresponding to the lateral surface of a vertical circular cylinder.

[0131] The second actuating element 25 is rotationally fixed to the polygon 1. This rotationally fixed connection can be achieved via an additional fixing element 6 of the type described above and a corresponding polygonal receptacle integrated into the second actuating element 25. In this case, a rear side of the cover 24 can form an object-side flat surface 21 of the type described above. Alternatively, this rotationally fixed connection can also be achieved in a conventional manner, for example, via a bore in the second actuating element 25 and a setscrew.

[0132] Figure 4 shows a detailed view of a coupling part 13, which includes the polygonal receptacle 2, and a fixing element 6 adapted to the shape of the circumferential surface 9 of the polygonal receptacle 2.

[0133] The coupling part 13 shown is the previously mentioned first (inner) coupling part.

[0134] In the illustrated embodiment, the coupling part 13 and the polygonal receptacle 2 are manufactured from a single piece. However, it is also possible for the polygonal receptacle 2 to be connected to the coupling part 13 in a rotationally fixed manner in another way, for example by screwing or gluing.

[0135] The circumferential surface 9 has two retaining projections 18. These are arranged such that, when the fixing element 6 is attached, they lie in the two end regions of the retaining areas 6.1. The end regions of the retaining areas 6.1 have recesses 19 that are aligned with the retaining projections 18.

[0136] The retaining projections 18 and the recesses 19 ensure that the fixing element 6 is correctly positioned during installation. Furthermore, they ensure that the fixing element 6 remains in its intended position even under increased mechanical stress.

[0137] Furthermore, the fixing elements 6 show according to Figure 4Grip extensions 12, which form the end regions of the holding areas 6.1. These enable the two holding areas 6.1 to be gripped and spread apart relative to each other, thus allowing for easy and non-destructive removal of the fixing element 6. Reference symbol list

[0138] 1. Polygon 2. Polygonal receptacle 3. Recess 4. Longitudinal axis 5. Polygonal longitudinal axis 6. Fixing element 6.1. Holding area 6.2. Extension 7. Tapering 9. Circumferential surface 10. Opening 11. Axis 12. Grip extension 13. Coupling part 16. Recess 17. Guide 18. Holding extension 19. Cutout 20. Locking system 21. Object-side flat side 22. (First) actuating element 23. Bracket 24. Cover 25. Second actuating element 26. Housing 27. First flat side 28. Second flat side

Claims

1. A mechatronic locking system, having a fitting arrangement, a multi-edged element (1) and a multi-edged element holder (2), wherein - the multi-edged element holder (2) has a recess (3) with a longitudinal axis (4), - the multi-edged element (1) can be inserted into the recess (3) along the longitudinal axis (4), - the multi-edged element (1) inserted into the multi-edged element holder (2) interacts with the multi-edged element holder (2) such that a rotary movement of the multi-edged element (1) about a multi-edged element longitudinal axis (5) leads to a rotation of the multi-edged element holder (2) about the longitudinal axis (4), or a rotation of the multi-edged element holder (2) about the longitudinal axis (4) leads to a rotary movement of the multi-edged element (1) about the multi-edged element longitudinal axis (5), wherein the fitting arrangement comprises a first actuating element (22) and a second actuating element (25), wherein the first actuating element (22) is configured to open into a first flat side (27) of an object on which the locking system is mounted or of an element belonging to the locking system or to the fitting arrangement, and the second actuating element (25) is configured to open into a second flat side (28) of the object or of an element belonging to the locking system or to the fitting arrangement, wherein the opening on the first flat side (27) defines a first plane up to which elements of the mounted fitting arrangement are freely accessible, and the opening on the second flat side (28) defines a second plane up to which elements of the mounted fitting arrangement are freely accessible, wherein the fitting arrangement further has a fixing element (6) with which the multi-edged element (1) can be fixed in the recess (3) such that a movement of the multi-edged element (1) along the longitudinal axis (4) is prevented, wherein the fixing element (6) has a retaining region (6.1) and a projection (6.2), wherein the multi-edged elemental receptacle (2) has a circumferential lateral surface (9) and an opening (10) passing radially from the circumferential lateral surface (9) into the recess (3) with respect to the longitudinal axis (4), wherein, in the mounted state, the retaining region (6.1) engages at least partially around the circumferential lateral surface (9) and the projection (6.2) is held by the retaining region (6.1) in a position extending through the opening (10) into the recess (3), wherein the circumferential lateral surface (9) and the continuous opening (10) are arranged such that the fixing element (6) fixing the multi-edged element is arranged inaccessibly in the interior of the locking system and / or the door or the window between the first and the second plane when the fitting arrangement is mounted, wherein the fitting arrangement has a second multi-edged element different from the multi-edged element (1) and the locking system has a coupling mechanism and a locking mechanism, wherein the multi-edged element (1) is configured to transmit a rotary movement of the coupling mechanism to the locking mechanism when the fitting arrangement is mounted, and the second multi-edged element is configured to transmit a rotary movement of an actuating element (22, 25) to the coupling mechanism when the fitting arrangement is mounted.

2. The mechatronic locking system according to claim 1, wherein the retaining region (6.1) is resilient such that the projection (6.2) can be pushed out of the recess (3) by a force directed along an axis (11) of the opening (10), wherein the projection (6.2) extends back into the recess (3) after said force has ceased.

3. The mechatronic locking system according to claim 2, wherein the multi-edged element (1) has a depression (16) in which the projection (6.2) extending through the opening (10) into the recess (3) can engage.

4. The mechatronic locking system according to one of the preceding claims, wherein the circumferential lateral surface (9) has a shape which, in a section which is perpendicular to the longitudinal axis (4) and includes the axis (11) of the opening (10), has a radial distance from the extended axis (11) of the opening (3) which varies along the axis (11), wherein the retaining region (6.1) is adapted to said shape and is resilient such that the fixing element (6) can be attached around the circumferential lateral surface (9), or wherein the circumferential lateral surface (9) has an n-cornered shape in a section perpendicular to the longitudinal axis (4) and including the axis (11) of the opening (10), wherein the retaining region (6.1) is adapted to said shape and is resilient such that the fixing element (6) can be attached around the circumferential lateral surface (9).

5. The mechatronic locking system according to claim 4, wherein the circumferential lateral surface (9) has a guide (17) which guides the retaining region (6.1) during attachment, or wherein the circumferential lateral surface (9) has a retaining projection (18) which prevents incorrect positioning of the fixing element (6).

6. The mechatronic locking system according to one of the preceding claims, further having an object-side flat side (21) which, in a state of the fitting arrangement mounted on an object, faces said object, wherein the multi-edged element receptacle (2) projects beyond the object-side flat side (21) to such an extent that the fixing element (6) can be attached by moving it along the object-side flat side (21).

7. The mechatronic locking system according to one of the preceding claims, wherein the continuous opening (10) is a bore for a grub screw and the projection (6.2) is dimensioned such that it can be inserted into the bore without rotation about its own axis.

8. The mechatronic locking system according to one of the preceding claims, wherein the coupling mechanism has two coupling parts, one coupling part of which comprises the multi-edged element receptacle (2).

9. The mechatronic locking system according to one of the preceding claims, wherein the locking system further has exactly one bolt or has exactly one bolt set, wherein the movements of the bolts of the bolt set are coupled to one another.

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