Connector for mechanically fastening a first component to a second component, connector assembly, component arrangement, component connection and method

Abstract

The invention relates to a connector (46, 48) for mechanically fastening a first component to a second component. The first component and the second component in each case have at least one coupling groove which has at least one undercut effective along a groove depth direction. The connector (46, 48) comprises an engagement element (50, 52) which is mounted elastically resiliently in a connector width direction (B) for anchoring in the undercut. The connector (46, 48) further comprises a coupling element (64, 66, 68) for insertion into a mating connector (48, 46), the coupling element (64, 66, 68) and the engagement element (50, 52) being materially connected. The invention further relates to a connector assembly (44) for mechanically fastening the first component to the second component, the connector assembly (44) comprising two such connectors (46, 48). In addition, a component arrangement is presented which comprises a component with a coupling groove and such a connector (46, 48). The invention also relates to a component connection and to a method for coupling a first component and a second component.

Description

[0001] Connectors for the mechanical fastening of a first component to a second component, connector assembly, component arrangement, component connection and method

[0002] The invention relates to a connector for the mechanical fastening of a first component to a second component. The first component has at least one coupling groove, which has at least one undercut acting along a groove depth direction.

[0003] Furthermore, the invention relates to a connector assembly for the mechanical fastening of a first component to a second component.

[0004] The invention also relates to a component arrangement comprising a component with a coupling groove which has at least one undercut acting along a groove depth direction, and a connector.

[0005] The invention also relates to a component connection comprising a first component with a first coupling groove, wherein a groove opening of the first coupling groove is located in a contact surface of the first component and the coupling groove has at least one undercut acting along a groove depth direction. The component connection further comprises a second component with a second coupling groove, the groove opening of which is located in a contact surface of the second component and which has at least one undercut acting along a groove depth direction. The component connection further comprises a connector assembly.

[0006] The invention further relates to a method for coupling a first component and a second component. The first component has a first coupling groove, the opening of which lies in a contact surface of the first component. The first coupling groove has at least one undercut acting along a groove depth direction. Furthermore, the second component has a second coupling groove, the opening of which lies in a contact surface of the second component. The second coupling groove has at least one undercut acting along a groove depth direction.

[0007] In this context, the groove depth direction is understood to be the direction extending between a groove opening and a groove bottom. A groove opening is usually elongated. Otherwise, it is referred to as a hole or a bore. The groove opening is generally located opposite the groove bottom. In a groove that is bounded on both sides along its length, the groove opening is the only opening of the groove. In a groove that has one or two open ends along its length, only the opening extending along the length is considered the groove opening. The one or both open ends do not constitute a groove opening. The same applies to openings resulting from other design elements, such as counterbores or bores. In this context, a direction parallel to the longer side of the elongated groove opening is considered the direction of travel or extension.Grooves that have a groove depth that changes along the direction of travel in such a way that the groove depth decreases to zero at one or both ends of the groove are considered to be grooves limited on one or both sides, respectively.

[0008] Accordingly, an undercut acting along a groove depth direction exhibits an undercut in a direction from the groove bottom to the groove opening. Therefore, an element engaging in the undercut cannot be pulled out of the groove along the groove depth direction, or only with considerable force and deformation of the element itself and / or the groove, as it forms a positive-locking connection with the undercut.

[0009] Such undercuts and the associated coupling grooves can be produced using known tools and methods. The tools can be stationary or handheld. Connectors, connector assemblies, component arrangements, component connections, and methods of the type mentioned above are generally known. They are used, for example, to mechanically fasten, i.e., join, wooden components. Such components can be furniture parts. However, it is understood that the aforementioned connector assemblies, component arrangements, component connections, and methods are not limited to a specific material class or application area. They can readily be used for components made of plastic, metal, ceramic, stone, etc.

[0010] In all conceivable applications, the undercuts acting along a corresponding groove depth direction offer the advantage that the components can be fastened together with high reliability. A positive-locking connection can be achieved using these undercuts. This is particularly true compared to coupling grooves, which do not have such an undercut.

[0011] The present invention is based on the objective of providing a connector that is easy to handle while maintaining a high level of connection reliability.

[0012] The problem is solved by a connector for the mechanical fastening of a first component to a second component. The first component has at least one coupling groove, which has at least one undercut acting along a groove depth direction. The connector comprises an engagement element that is elastically compliant for anchoring in the undercut in a connector width direction. The connector width direction is perpendicular to a connector depth direction and perpendicular to a connector length direction. The connector depth direction and the connector length direction are perpendicular to each other. Furthermore, the connector comprises a coupling element for insertion into a mating connector. The coupling element and the engagement element are materially bonded. In this context, the connector depth direction is oriented parallel to an insertion direction of the connector.Insertion into a mating connector also occurs parallel to the connector's depth direction. If the connector is at least partially positioned in the first coupling groove, its depth direction runs parallel to the groove's depth direction. The connector's longitudinal direction runs parallel to the orientation or extension direction of the first coupling groove, i.e., parallel to the longer side of the elongated groove opening, if the connector is at least partially positioned in the first coupling groove. Since the connector's width direction is oriented perpendicular to both its depth direction and its length direction, the connector's width direction runs parallel to a groove width direction that is oriented perpendicular to both the groove's depth direction and its orientation or extension direction.The connector can therefore be reliably anchored in the undercut of the first coupling groove by means of the engagement element. In this way, the connector can be reliably coupled to the first component. The elastic flexibility in the connector's width direction facilitates the insertion of the engagement element into the undercut. Consequently, the connector is easy to handle. Preferably, the engagement element is rigid, i.e., immovable, at least along the connector's depth direction. This applies both to deformation of the engagement element and to its bearing or support on the other sections of the connector. The engagement element is thus not movably mounted. This also serves to ensure stable anchorage in the first component without impairing ease of handling. The coupling element also allows the connector to be connected or coupled to the mating connector, i.e., another connector.In particular, the insertion can lead to a section of the mating connector, i.e., the other connector, being engaged behind it. Any suitable, positive-locking coupling device can be used for this purpose. It is understood that, in addition to positive locking, the coupling between the connector and the mating connector can also be friction-locked or force-locked. Furthermore, a positive-locking connection or coupling is understood here to include both detachable and permanent positive-locking connections. The connector can thus be reliably connected or coupled to the mating connector, i.e., the other connector. The mating connector can be anchored in the second component. Overall, a mechanically stable connection between the first and second components can be achieved using the connector. Due to the aforementioned flexibility, handling the connector is particularly easy.

[0013] In one example, the engagement element is designed such that it protrudes, at least partially, from the other sections of the connector when the connector is stress-free, i.e., not elastically deformed. Preferably, the engagement element protrudes, at least partially, in the connector's width direction from the other components of the connector. Consequently, the engagement element is designed to be easily and reliably anchored in the undercut of the first coupling groove.

[0014] Furthermore, in connection with the present invention, the undercut can be formed by a transverse groove which runs along a groove base of the first coupling groove. For example, the groove depth direction of the transverse groove is oriented parallel to the width direction of the first coupling groove. In this way, an undercut can be created into which the connector can engage easily and reliably.

[0015] According to one embodiment, the coupling element and the engagement element are connected via a retaining arm. The retaining arm is elastically flexible in the connector's width direction and in one connector's length direction. Along the connector's depth direction, the retaining arm is preferably rigid, i.e., immobile. Such elastic flexibility can be defined, for example, by appropriately selecting a cross-section for the retaining arm. In this context, the elastic flexibility in the connector's width direction and / or the elastic flexibility in the connector's length direction can serve to anchor the engagement element in the undercut. The other elastic flexibility, in the connector's width direction and elastic flexibility in the connector's length direction, can serve to couple the connector to another connector, i.e., the mating connector.In particular, connecting the coupling element and the engagement element using a retaining arm is structurally simple and reliable. The retaining arm can be designed to transmit comparatively high forces. Thus, the first component and the second component can be mechanically and reliably fastened to each other using the connector.

[0016] The coupling element can include a lateral projection at an end of the retaining arm opposite the engagement element. In this context, a distinction must be made between the lateral direction of the retaining arm and its longitudinal direction. The lateral projection thus extends transversely to the longitudinal direction of the retaining arm. Preferably, the projection protrudes in the longitudinal direction of the connector relative to the other sections of the retaining arm. The lateral projection reliably establishes a positive-locking and / or force-locking connection with another connector, i.e., the mating connector.

[0017] Alternatively, the coupling element and the engagement element can be connected via a retaining plate that is elastically flexible in the connector's width direction. The retaining plate is preferably rigid in both the connector's depth and length directions. This also ensures that the coupling element and the engagement element are mechanically stable and reliably connected.

[0018] The coupling element can be designed as a projection on the mounting plate. In this context, a projection is understood to be an element that extends beyond the mounting plate in the normal direction. Such a coupling element can be manufactured relatively easily. Furthermore, it enables a mechanically stable connection with the mounting plate.

[0019] In one example, the connector further includes a receiving space for a coupling element of the other connector, i.e., the mating connector. The receiving space adjoins the retaining plate or the retaining arm, so that elastic yielding of the retaining plate or the retaining arm in the connector's lateral direction can be blocked by means of the coupling element of the other connector, i.e., the mating connector. The receiving space and the coupling element of the other connector that it receives thus fulfill two functions. Firstly, the coupling element of the other connector can be received in the receiving space, so that the coupling element of the other connector can interact with the coupling element of the connector in such a way that the connector and the other connector are mechanically coupled. In this way, a reliable connection can be established between the first component, to which the connector is assigned, and the second component, to which the other connector, i.e., the mating connector, is assigned.The mating connector is assigned to the mating connector. Furthermore, the receiving space is at least partially bounded by the retaining plate or the retaining arm. In this way, a coupling element of the mating connector, located in the receiving space, can block elastic yielding of the retaining plate or the retaining arm. In other words, in such a case, the coupling element of the mating connector occupies at least partially the space that the retaining plate or the retaining arm would need for elastic yielding. This reliably prevents such yielding, thereby further increasing the reliability of the connection between the first and second components achieved by means of the connector and the mating connector.

[0020] According to one embodiment, a lead-in chamfer is provided on the coupling element. This lead-in chamfer simplifies the coupling of the connector to the mating connector. This is particularly relevant when the coupling element, or a cooperating coupling element of the mating connector, must be elastically deformed. The lead-in chamfer allows the deformation force necessary for elastic deformation to be built up gradually from a comparatively low force level. In this way, the mechanical coupling of the connector and the mating connector is simple for the user. Furthermore, such a lead-in chamfer increases robustness against tolerance deviations. This is because the position of the lead-in chamfer at which the coupling element comes into contact with a coupling element of the mating connector is irrelevant to its function.According to another embodiment, an insertion ramp is provided on the engagement element. This ramp simplifies anchoring the connector in the undercut. This is particularly advantageous when the engagement element or its bearing needs to be elastically deformed. The insertion ramp allows the deformation force required for elastic deformation to be built up gradually from a comparatively low force level. This makes anchoring the connector in the undercut easy for the user. Furthermore, such an insertion ramp increases robustness against tolerance deviations. This is because the position of the insertion ramp at which the engagement element comes into contact with a section of the associated coupling groove is irrelevant to its function.

[0021] According to one embodiment, the connector further comprises an additional engagement element, which is elastically compliant for anchoring in a further undercut of the first coupling groove in a connector width direction. The engagement element and the additional engagement element are arranged at opposite ends of the connector along the connector width direction. Such a connector can therefore be anchored in the first coupling groove with particularly high reliability.

[0022] The engagement element and the subsequent engagement element can be mirror-symmetrical with respect to a connector's central plane, with the connector's lateral direction perpendicular to this central plane. This results in a structurally simple connector design. Furthermore, the reliability of the anchorage in the coupling groove is increased because, with the engagement element and the subsequent engagement element arranged in a mirror symmetrical configuration, a direction leading out of the undercut corresponds to a direction leading into the subsequent undercut, and vice versa. This means that if the engagement element, for whatever reason, tends to move out of the undercut, the subsequent engagement element simultaneously moves into the subsequent undercut. The reverse is also true.For example, a clearance is provided along the connector's width direction between the engagement element and the subsequent engagement element to allow for elastic compliance in the connector's width direction. This results in a compact connector design. Furthermore, the arrangement of this clearance between the engagement element and the subsequent engagement element prevents foreign bodies from entering the clearance that would impede elastic compliance.

[0023] According to one variant, at least one section of the movement space forms at least one section of the receiving space. In this way, the elastic compliance of the connector can be reliably blocked by means of a coupling element of the mating connector, which is at least partially contained in the receiving space. Furthermore, a configuration in which at least one section of the movement space forms at least one section of the receiving space is compact.

[0024] In one embodiment, the coupling element and the further engagement element are connected via an additional retaining arm. This additional retaining arm is elastically flexible in the connector's width and length directions. Along the connector's depth direction, the additional retaining arm is preferably rigid, i.e., immobile. Such elastic flexibility can be defined, for example, by appropriately selecting the cross-section of the additional retaining arm. In this context, the elastic flexibility in the connector's width direction and / or the elastic flexibility in the connector's length direction can serve to anchor the further engagement element in the further undercut. The other combination of elastic flexibility in the connector's width direction and elastic flexibility in the connector's length direction can serve to couple the connector to another connector, i.e., the mating connector.In particular, connecting the coupling element and the further engagement element by means of a retaining arm is structurally simple and reliable. The retaining arm can be designed to transmit comparatively high forces. Thus, the first component and the second component can be mechanically and reliably fastened to each other using the connector.

[0025] Alternatively, the additional engagement element can be arranged on a further retaining plate that is elastically compliant in the connector's lateral direction. This retaining plate is preferably rigid in both the connector's depth and longitudinal directions. In this way, too, the coupling element and the additional engagement element are mechanically stable and reliably connected.

[0026] In one variant, the retaining plate and the second retaining plate are designed as opposing sections of an annular retaining element. This allows for a structurally simple design of the retaining plate and the second retaining plate. Optionally, the necessary clearance for elastic compliance can be provided within the annular retaining element.

[0027] In one example, the coupling element has an undercut extending along the connector's depth direction. Using such an undercut, the coupling element can be easily and reliably coupled to a coupling element of another connector, i.e., the mating connector, in a form-fit manner, for example, similar to a clip connection. As already mentioned, the connector and the other connector, i.e., the mating connector, can also be force-fitted.

[0028] The coupling element can have a first coupling surface with a first surface normal, wherein the first surface normal has an extent component in the connector's depth direction and an extent component in the connector's length direction. Preferably, the first surface normal has no extent component in the connector's width direction. Such a first coupling surface is therefore oblique when viewed along the connector's width direction. Oblique in this context means that, when viewed along the connector's width direction, the first coupling surface is neither perpendicular nor parallel to the connector's length direction, nor perpendicular nor parallel to the connector's depth direction. The fact that the first surface normal has no extent component in the connector's width direction means that the first surface normal is parallel or skew to the connector's width direction.By means of such a first coupling surface, a positive-locking connection between the connector and another connector can be established and disengaged relatively easily due to its inclined position. Furthermore, such a positive-locking connection is advantageous with regard to tolerance deviations, since the inclined position of the first coupling surface allows a positive-locking connection to be established, provided that the connector and the other connector are arranged at relative positions within a predefined interval along the connector's depth direction. In other words, the inclined position of the first coupling surface allows a positive-locking connection to be established even if the connector and the mating connector are not positioned with pinpoint accuracy relative to each other along the connector's depth direction. As already mentioned, the existence of a positive lock does not preclude the possibility that the connector and the other connector, i.e.,The mating connectors are also coupled by friction. In particular, a friction-fit connection exists when, due to the inclination of the coupling surface, either the coupling element encompassing the coupling surface or an element bearing against the coupling surface assumes an elastically deformed state. This elastic deformation causes the contact at the coupling surface to be subjected to force and thus to friction. In other words, the contact at the coupling surface is pre-tensioned.

[0029] Alternatively or additionally, the coupling element can have a second coupling surface with a second surface normal, wherein the second surface normal has an extent component in the connector's depth direction and an extent component in the connector's length direction. The first surface normal and the second surface normal are aligned with respect to the connector's depth direction. Furthermore, the first surface normal and the second surface normal are oriented oppositely with respect to the connector's length direction. Preferably, the second surface normal has no extent component in the connector's width direction. Such a second coupling surface therefore runs obliquely when viewed along the connector's width direction.In this context, "oblique" means that the second coupling surface, when viewed along the connector's width direction, is neither perpendicular nor parallel to the connector's length direction, nor is it perpendicular or parallel to the connector's depth direction. The fact that the second surface normal has no extension component in the connector's width direction means that the second surface normal runs parallel or at an angle to the connector's width direction. Due to its oblique orientation, such a second coupling surface allows for a relatively simple creation and release of a positive-locking connection between the connector and another connector.Furthermore, such a positive-locking connection is advantageous with regard to tolerance deviations, since the inclination of the second coupling surface allows a positive-locking connection to be established, provided that the connector and the mating connector are arranged at relative positions within a predetermined interval along the connector's depth direction. In other words, the inclination of the second coupling surface allows a positive-locking connection to be established even if the connector and the mating connector are not positioned with pinpoint accuracy relative to each other along the connector's depth direction. As already mentioned, the existence of a positive lock does not preclude the possibility that the connector and the other connector, i.e., the mating connector, are also frictionally coupled.In particular, a force-fit connection exists when, due to the inclination of the second coupling surface, either the coupling element encompassing the second coupling surface or an element bearing against the second coupling surface assumes an elastically deformed state. This elastic deformation results in the contact at the second coupling surface being subjected to force and thus experiencing friction. In other words, the contact at the coupling surface is pre-tensioned.

[0030] The first and second coupling surfaces can be arranged on opposite sides of the coupling element. In particular, the first and second coupling surfaces are arranged on sides of the coupling element that are opposite to each other in the direction of the connector's length. This allows for a particularly reliable positive and / or force-fit connection.

[0031] The connector can include an additional coupling element for insertion into a mating connector. Using this additional coupling element, in addition to the main coupling element, results in a particularly reliable connection with the mating connector. Specifically, the insertion can cause a section of the mating connector, i.e., the additional connector, to engage behind it. As already mentioned in connection with the coupling element, any suitable positive-locking coupling device can also be used for the additional coupling element. It is understood that, in addition to positive locking, the connection between the connector and the mating connector can also be friction-locked or force-locked. Furthermore, a positive-locking connection is understood here to include both detachable and permanent positive-locking connections. The connector can therefore also be reliably connected to the mating connector, i.e., the mating connector, by means of the additional coupling element.to connect or couple the further connector. Preferably, the further coupling element is designed in the same way as the coupling element, although this is not necessarily the case.

[0032] Preferably, the coupling element and the further coupling element are mirror-symmetrical with respect to a connector transverse plane. The longitudinal direction of the connector is perpendicular to this transverse plane. A mirror-symmetrical design of the coupling element and the further coupling element ensures that they are also symmetrical with respect to the force flow between the connector and the mating connector. This increases the reliability of the connection between the connector and the mating connector. In a case where the coupling element and the mating connector are arranged such that they can accommodate a coupling element of the mating connector between them, the coupling element and the mating connector together can also be described as pincer-shaped. The connector can be manufactured in one piece.The connector is manufactured primarily using a primary forming process, such as casting or, in particular, injection molding. This allows for simple and cost-effective production. Furthermore, the one-piece manufacturing process eliminates any assembly interfaces or joining zones, resulting in a particularly robust mechanical design.

[0033] Furthermore, the problem is solved by a connector assembly for the mechanical fastening of a first component to a second component. The connector assembly comprises a first connector according to the invention and a second connector according to the invention. The coupling element of the first connector according to the invention is inserted into the second connector according to the invention. In addition, the coupling element of the second connector according to the invention is inserted into the first connector according to the invention, so that the first connector and the second connector are coupled. The depth direction of the first connector and the depth direction of the second connector coincide. Preferably, the longitudinal direction of the first connector according to the invention also runs parallel to the longitudinal direction of the second connector according to the invention.Similarly, the width direction of the first connector according to the invention and the width direction of the second connector according to the invention preferably run parallel. In this context, the first connector according to the invention can be anchored in an undercut of a first coupling groove of the first component. The second connector according to the invention can be anchored in an undercut of a first coupling groove of the second component. After the first and second connectors according to the invention are inserted into one another, and thus coupled, a reliable connection between the first and second components can be provided in this way. The depth directions of the connectors are oriented parallel to the insertion directions of the first and second connectors according to the invention.The insertion into a mating connector also occurs parallel to the connector's depth direction. If the first connector according to the invention is arranged at least partially in the first coupling groove, the connector's depth direction runs parallel to the groove depth direction of the first coupling groove. If the second connector according to the invention is arranged at least partially in the coupling groove of the second component, the connector's depth direction runs parallel to the groove depth direction of the coupling groove of the second component. The connector's longitudinal directions run parallel to a direction of travel or extension of the coupling grooves, i.e., parallel to the longer side of the elongated groove opening, if the connectors are arranged at least partially in the respective coupling groove.Since the connector's width direction is oriented perpendicular to both its depth direction and its length direction, the connector's width directions run parallel to the respective groove width direction, which is oriented perpendicular to both the groove depth direction and the direction of travel or extension of the respective coupling groove. As already mentioned, the elastic flexibility in the connector's width direction facilitates the insertion of the engagement element of the first connector according to the invention into the undercut of the first coupling groove of the first component, as well as the insertion of the engagement element of the second connector according to the invention into the undercut of the second coupling groove of the second component. Consequently, the connector is easy to handle. Overall, a mechanically stable connection between the first and second components can be achieved using the connector assembly.Due to the aforementioned flexibility, handling the connectors of the connector assembly is particularly easy.

[0034] It is understood that the first connector according to the invention in the connector assembly can be either a connector according to the invention or a mating connector. The second connector according to the invention in the connector assembly can also be either a connector according to the invention or a mating connector.

[0035] In this context, a combination of two connectors according to the invention, which are designed to be inserted into one another but are not necessarily inserted into one another, can also be referred to as a connector set. The present invention is thus also directed to a connector set comprising two connectors according to the invention.

[0036] In one embodiment, the coupling element of the first connector blocks elastic yielding of the engagement element of the second connector. Alternatively or additionally, the coupling element of the second connector blocks elastic yielding of the engagement element of the first connector. Thus, the engagement element of the first connector and / or the engagement element of the second connector is prevented from yielding elastically by means of a coupling element of the other connector. This makes it possible to create a particularly stable connection between the first and second components.

[0037] According to one embodiment, the insertion force, i.e., the force required to insert the first connector and the second connector of the connector assembly into one another, is 80 N to 500 N. In one example, this insertion force is a maximum of 200 N, i.e., 80 N to 200 N. In another example, the insertion force is 200 N to 400 N. In yet another example, the insertion force is 250 N to 380 N. In a further example, the insertion force is 270 N to 360 N. It is understood that the first connector and the second connector are connected or coupled to each other by being inserted into one another. It is also understood that this force should be as small as possible so that the first connector and the second connector can be reliably inserted into one another, i.e., connected or coupled.

[0038] According to another embodiment, the holding force—that is, the force by which the first connector and the second connector of the connector assembly are held together—is between 80 N and 500 N. In one example, this holding force is 200 N. In another example, the holding force is 300 N. In principle, the holding force should be as large as possible. Thus, the first component and the second component can be reliably held together by means of the first connector and the second connector, i.e., by means of the connector assembly. In a case where the first connector and the second connector of the connector assembly can be separated—that is, in a case where the first connector and the second connector can be separated from each other after successful insertion—a certain separating force must be applied to separate the first connector and the second connector.It is understood that the separating force must be at least equal in magnitude to the holding force. In a case where separating the first and second connectors requires not only releasing a positive-locking connection but also a frictional or force-locking connection, the separating force is greater than the holding force. In this example, the separating force is between 80 N and 700 N. In another example, the separating force is 300 N. In yet another example, the separating force is between 200 N and 280 N. It is understood that, considering that the separating force cannot be less than the holding force, it should be as small as possible. This ensures that the first and second connectors can be reliably separated again.Consequently, the first component and the second component, which are connected by means of the first connector and the second connector, can also be reliably separated again.

[0039] The first and second connectors can be identical parts. This is advantageous from a production engineering perspective. Furthermore, it simplifies handling the connector, as the user does not have to ensure the correct connector is inserted into the coupling groove on the first component and the coupling groove on the second component.

[0040] Furthermore, the problem is solved by a component arrangement. The component arrangement comprises a component with a coupling groove, which has at least one undercut acting along a groove depth direction. The component arrangement also includes a connector according to the invention. The engagement element of the connector according to the invention is anchored in the undercut. In this context, the connector's depth direction is oriented parallel to an insertion direction of the connector. The connector's depth direction runs parallel to the groove depth direction of the coupling groove. The connector's longitudinal direction runs parallel to a direction of travel or extension of the first coupling groove, i.e., parallel to the longer side of the elongated groove opening.Since the connector's width direction is oriented perpendicular to both its depth and length directions, its width direction runs parallel to a groove width direction that is oriented perpendicular to both the groove depth and the direction of the coupling groove. Similarly, insertion into a mating connector occurs parallel to the connector's depth direction. The connector is reliably anchored in the undercut of the coupling groove by means of the engagement element. In this way, the connector is reliably coupled to the component. The coupling element also allows the connector to be coupled or connected to another connector, i.e., the mating connector. In particular, insertion can result in the connector engaging behind a section of the mating connector. Any suitable, positive-locking coupling device can be used for this purpose.It is understood that, in addition to positive locking, the connection between the connector and the mating connector can also be friction-fit or force-fit. Furthermore, a positive-fit connection or coupling is understood here to include both detachable and permanent positive-fit connections. The connector can therefore be reliably connected or coupled to the mating connector, i.e., the other connector. The other connector can be anchored in the second component. Overall, a mechanically stable connection between the first and second components can be achieved using this component arrangement. Due to the aforementioned flexibility, handling the connector is particularly easy.

[0041] In this context, it is understood that both component arrangements that include a connector and component arrangements that include a counter-connector are conceivable.

[0042] The problem is further solved by a component connection. The component connection comprises a first component with a first coupling groove, the groove opening of which lies in a contact surface of the first component. The first coupling groove also has at least one undercut acting along a groove depth direction. The component connection further comprises a second component with a second coupling groove, the groove opening of which lies in a contact surface of the second component. The second coupling groove also has at least one undercut acting along a groove depth direction. The component connection also comprises a connector assembly according to the invention. The engagement element of the first connector of the connector assembly according to the invention is anchored in the undercut of the first component. The engagement element of the second connector of the connector assembly according to the invention is anchored in the undercut of the second component.Furthermore, the contact surfaces of the first component and the contact surfaces of the second component are in contact with each other. Preferably, the longitudinal direction of the first connector according to the invention runs parallel to the longitudinal direction of the second connector according to the invention. Similarly, the lateral direction of the first connector according to the invention and the lateral direction of the second connector according to the invention run parallel. The first and second connectors according to the invention are firmly and reliably anchored in their respective components via the undercuts. After the first and second connectors according to the invention are inserted into each other via the respective coupling elements and thus coupled, a reliable connection between the first and second components can be established.Furthermore, the connector depth directions are oriented parallel to the insertion directions of the first and second connectors according to the invention. The connector depth direction also runs parallel to the groove depth direction of the coupling groove of the first component. The connector depth direction of the second connector according to the invention runs parallel to the groove depth direction of the coupling groove of the second component. The connector length directions run parallel to a direction of travel or extension of the coupling grooves, i.e., parallel to the longer side of the elongated groove opening. Since the connector width direction is oriented perpendicular to the connector depth direction and perpendicular to the connector length direction, the connector width directions run parallel to the respective groove width direction, which is oriented perpendicular to the groove depth direction and perpendicular to the direction of travel or extension of the respective coupling groove.The insertion into a mating connector is also performed parallel to the connector's depth direction. Overall, a mechanically stable connection between the first and second components can be achieved using the connector assembly. Due to the aforementioned flexibility, handling the connectors is particularly easy.

[0043] Additionally, the problem is solved by a method for coupling a first component and a second component. The first component has a first coupling groove, the opening of which lies in a contact surface of the first component. The first coupling groove has at least one undercut acting along a groove depth direction. Furthermore, the second component has a second coupling groove, the opening of which lies in a contact surface of the second component. The second coupling groove has at least one undercut acting along a groove depth direction. The method comprises

[0044] - Inserting a first connector into the first coupling groove along a groove depth direction of the first coupling groove and anchoring the first connector in the undercut of the first coupling groove,

[0045] - Inserting a second connector into the second coupling groove along a groove depth direction of the second coupling groove and anchoring the second connector in the undercut of the second coupling groove, and

[0046] - Inserting the first connector and the second connector into each other, thereby coupling the first connector and the second connector.

[0047] The first connector is thus reliably anchored in the undercut of the first coupling groove. Similarly, the second connector is reliably anchored in the undercut of the second coupling groove. Because the first and second connectors are also inserted into each other and thus coupled, a mechanically stable and reliable connection between the first and second components is achieved. The insertion into a mating connector occurs parallel to the connector's depth direction. Due to the previously described flexibility, both the anchoring in the first and second coupling grooves and the coupling of the first and second connectors can be created relatively easily. Overall, such a process can be carried out simply, especially manually, while simultaneously creating a mechanically stable and reliable connection between the first and second components.

[0048] Preferably, in the inventive method, the first connector and the second connector are only coupled when the first connector is already anchored in the undercut of the first coupling groove and when the second connector is already anchored in the undercut of the second coupling groove.

[0049] The method according to the invention can be carried out using at least one connector according to the invention, in particular using two connectors according to the invention.

[0050] For example, the first and second connectors are coupled by their insertion in such a way that they can also be separated again by applying a sufficient force. This involves at least local deformation of the first and / or second connector. The applied force must therefore be sufficient to cause such deformation. This deformation allows the positive connection to be decoupled. The deformation can be elastic, so that the first and second connectors can be coupled and uncoupled multiple times without damaging or otherwise impairing the function of either connector. In this way, the first and second components can also be decoupled again.This can also happen several times, without causing any damage or impairment to the first or second component.

[0051] According to one variant of the process, the first connector and the second connector are inserted into each other along an insertion path. The joining force is essentially constant along at least 50% of the insertion path. Preferably, the joining force is essentially constant along at least 60% of the insertion path. More preferably, the joining force is essentially constant along at least 70% of the insertion path. Even more preferably, the joining force is essentially constant along at least 80% of the insertion path. An essentially constant joining force is understood to be one that fluctuates by less than ±10%, preferably by less than ±5%.The insertion path refers to the length of relative movement between the first and second connectors. This movement begins as soon as the first and second connectors make contact and ends when the coupling between them is complete. The latter occurs, for example, when the contact surfaces of the first and second components make contact. It should be noted that the insertion force can fluctuate in the initial phase of the insertion path, i.e., at the beginning of an insertion operation. This fluctuation can be due, in particular, to the fact that the first and second connectors, or components thereof, must first be aligned relative to each other. The insertion force can also fluctuate in the final phase of the insertion path, i.e., at the end of an insertion operation.This can be due to sections of the first connector and / or the second connector interlocking or overlapping each other. The essentially constant joining force therefore occurs in a middle section of the insertion path, i.e., between the beginning and end regions. This essentially constant joining force allows the user to precisely control the coupling of the first and second components. In this way, the first and second components can be coupled easily and reliably.

[0052] Furthermore, it is understood that features, advantages and effects mentioned in connection with one of the connectors, connector assemblies, component arrangements, component connections and methods according to the invention shall apply in the same way to all other connectors, connector assemblies, component arrangements, component connections and methods according to the invention.

[0053] The invention is explained below with reference to various embodiments shown in the accompanying drawings. These show:

[0054] Figure 1 shows a component connection according to the invention, wherein the component connection comprises two component arrangements according to the invention as well as a component connection according to the invention.

[0055] Connector assembly comprising two connectors according to the invention, wherein a first component and a second component of the component connection are coupled by means of a method according to the invention,

[0056] Figure 2 shows the component connection from Figure 1 in a sectional view along plane II in Figure 1.

[0057] Figure 3 shows the component connection from Figures 1 and 2 in a sectional view along plane III in Figure 1.

[0058] Figure 4 shows the component connection from Figures 1 to 3 in a partial exploded view, wherein a connector associated with the first component is shown separated from the first component and a connector associated with the second component is anchored in the second component.

[0059] Figure 5 shows the connector assembly according to the invention from Figures 1 to 4 with the two connectors according to the invention in a separate perspective exploded view,

[0060] Figure 6 shows the connector assembly from Figure 5 in a side view along direction VI in Figure 5.

[0061] Figure 7 shows the connector assembly from Figures 5 and 6 along another side view along direction VII in Figure 5. Figure 8 shows the connector assembly according to the invention with the two connectors according to the invention from Figures 5 to 7 in a state in which the two connectors according to the invention are inserted into one another and thereby coupled.

[0062] Figure 9 shows a connector assembly according to the invention in accordance with another

[0063] embodiment in a view corresponding to Figure 8,

[0064] Figure 10 shows a connector assembly according to the invention in accordance with a further

[0065] embodiment in a view corresponding to Figure 8,

[0066] Figure 11 shows a connector assembly according to the invention in a further embodiment in a view corresponding to Figure 8,

[0067] Figure 12 shows a connector assembly according to the invention in an additional embodiment in a view corresponding to Figure 8,

[0068] Figure 13 shows a connector assembly according to the invention in a perspective exploded view according to yet another embodiment.

[0069] Figure 14 shows the connector assembly from Figure 13 in a state in which the two connectors according to the invention are inserted into one another and thereby coupled,

[0070] Figure 15 shows the connector assembly from Figure 14 in a sectioned view in plane XV in Figure 14,

[0071] Figure 16 shows a connector assembly according to the invention in a further embodiment in a sectional view corresponding to Figure 15, wherein the two connectors according to the invention are not coupled; Figure 17 shows the connector assembly from Figure 16 in a sectional view corresponding to Figure 16, wherein the two connectors according to the invention are in contact with each other; and

[0072] Figure 18 shows the connector assembly from Figures 16 and 17 in a sectional view corresponding to Figures 16 and 17, wherein the two connectors according to the invention are inserted into each other and thereby coupled.

[0073] Figures 1 to 4 show a component connection 10.

[0074] The component connection 10 comprises a first component 12, which in the illustrated embodiment is plate-shaped.

[0075] The first component 12 comprises a top surface 12a, a bottom surface 12b, and four edge sides 12c. Due to the plate-like shape of the first component 12, the area of ​​the top surface and the bottom surface is much larger than the area of ​​each of the edge sides 12c. The area of ​​the top surface 12a and the area of ​​the bottom surface 12b are essentially equal.

[0076] The first component 12 is in the present form as a flat cuboid.

[0077] The first component 12 also has a first coupling groove 14 extending from one of the edge faces 12c. Within the component connection 10, this edge face 12c forms a contact surface 16 of the first component 12, as will be explained in detail later.

[0078] The first coupling groove 14 therefore has a groove opening 18 located in the contact surface 16. The coupling groove 14 extends along a groove depth direction 20 into the interior of the first component 12 up to a groove base 22. The cross-section of the first coupling groove 14 is oblong when viewed along the groove depth direction 20 (see in particular Figures 2 and 3). In the region of the groove base 22, the first coupling groove 14 has a first undercut 24, which is designed as a transverse groove extending from the groove base 22 towards the top surface 12a.

[0079] Furthermore, the first coupling groove 14 has a second undercut 26 in the area of ​​the groove base 22, which is also designed as a transverse groove. This transverse groove extends along the groove base 22 towards the underside 12b.

[0080] The component connection 10 further comprises a second component 28, which in the illustrated embodiment is also plate-shaped.

[0081] The second component 28 also comprises a top surface 28a, a bottom surface 28b, and four edge surfaces 28c. Due to the plate-like shape of the second component 28, the area of ​​the top surface 28a and the bottom surface 28b is much larger than the area of ​​each of the edge surfaces 28c. The area of ​​the top surface 28a and the area of ​​the bottom surface 28b are essentially equal.

[0082] The second component, 28, also has the shape of a flat cuboid.

[0083] The second component 28 also has a second coupling groove 30 extending from one of the edge faces 28c. Within the component connection 10, this edge face 28c forms a contact surface 32 of the second component 28, as will be explained in detail later.

[0084] The second coupling groove 30 therefore has a groove opening 34 located in the contact surface 32. The coupling groove 30 extends along a groove depth direction 36 into the interior of the second component 28 to a groove base 38. The cross-section of the second coupling groove 28 is oblong when viewed along the groove depth direction 36 (see in particular Figure 4). In the region of the groove base 38, the second coupling groove 30 has a first undercut 40, which is designed as a transverse groove extending from the groove base 38 towards the top surface 28a.

[0085] Furthermore, the second coupling groove 30 has a second undercut 42 in the area of ​​the groove base 38, which is also designed as a transverse groove. This transverse groove extends along the groove base 38 towards the underside 28b.

[0086] In the example shown in the figures, the first coupling groove 14 and the second coupling groove 30 are identical in size and shape. Furthermore, the groove opening 18 of the first coupling groove 14 and the groove opening 34 of the second coupling groove 30 are directly opposite each other. The contact surface 16 of the first component 12 and the contact surface 32 of the second component 28 are in contact.

[0087] Furthermore, the component connection includes a connector assembly 44. The connector assembly 44 is anchored in both the first coupling groove 14 and the second coupling groove 30, so that the first component 12 and the second component 28 are fastened to each other by means of the connector assembly 44.

[0088] The connector assembly 44 comprises a first connector 46 and a second connector 48, which in the illustrated embodiment are designed as identical parts. For the sake of simplicity, the first connector 46 will in the following be referred to simply as connector 46 and the second connector 48 as mating connector 48.

[0089] Both the connector 46 and the counter-connector 48 are therefore designed for the mechanical fastening of the first component 12 to the second component 28.

[0090] The connector assembly 44, i.e., the connector 46 and the mating connector 48, are shown in detail in Figures 5 to 8. The connector 46 is associated with the first component 12, i.e., it is anchored in the first coupling groove 14, and the mating connector 48 is associated with the second component 28, i.e., it is anchored in the second coupling groove 30. The connector 46 comprises a first engagement element 50 and a second engagement element 52. In the example shown, both engagement elements 50 and 52 are strip-shaped. This means that both engagement elements 50 and 52 are elongated and extend essentially along a straight line.

[0091] The extension direction of the engagement elements 50, 52 corresponds to a connector length direction L.

[0092] Furthermore, the first engagement element 50 and the second engagement element 52 are arranged along a connector width direction B at opposite ends of the connector 46.

[0093] The connector's lateral direction B is perpendicular to the connector's longitudinal direction L.

[0094] The first engagement element 50 and the second engagement element 52 are spaced apart from each other along the connector's width direction B. This means that a clearance 54 is provided between the first engagement element 50 and the second engagement element 52. As will be explained in detail below, this clearance 54 allows the first engagement element 50 and the second engagement element 52 to yield elastically.

[0095] Furthermore, the first engagement element 50 and the second engagement element 52 are mirror-symmetric with respect to a connector midplane M. The connector width direction B is perpendicular to the connector midplane M. Along the connector width direction B, the connector midplane M lies at the center of the connector 46.

[0096] As already mentioned, in a state where the connector 46 is mounted on the first component 12, the first engagement element 50 is anchored in the first undercut 24 and the second engagement element 52 is anchored in the second undercut 26.

[0097] For this purpose, the first engagement element 50 is equipped with a first engagement surface 56, which engages in the first undercut 24 of the first coupling groove 14. The second engagement element 52 is equipped with a second engagement surface 58. This engages in the second undercut 26 of the first coupling groove 14.

[0098] In order to enable the engagement with the undercuts 24, 26, the surface normals on the first engagement surface 56 and the second engagement surface 58 must have at least one extension component along a connector depth direction T. In other words, the first engagement surface 56 and the second engagement surface 58 each form an undercut along the connector depth direction T. In the example shown, the surface normals on the first engagement surface 56 and on the second engagement surface 58 have only one extension component along the connector depth direction T.

[0099] The connector depth direction corresponds to the groove depth direction 20. More generally, the connector depth direction and the groove depth direction 20 are oriented parallel when the connector 46 is anchored in the first coupling groove 14.

[0100] To facilitate the insertion of the connector 46 into the first coupling groove 14, a first insertion ramp 60 is provided on the first engagement element 50. A second insertion ramp 62 is accordingly provided on the second engagement element 52 (see Figure 7).

[0101] Furthermore, the connector 46 has a total of three coupling elements 64, 66, 68, each designed to be inserted into the mating connector 48 and thus engage a section of the mating connector 48 in a form-fitting manner. In addition, a force-fit coupling with the mating connector 48 can also be achieved by means of the three coupling elements 64, 66, 68, which results in particular from an elastic tension of one or more of the coupling elements 64, 66, 68. The coupling element 64 can also be referred to as the first coupling element 64. The coupling element 66 can be referred to as the second coupling element 66, and the coupling element 68 as the third coupling element 68.

[0102] The first coupling element 64 is materially connected to the first engagement element 50 via a first retaining arm 70. The second coupling element 66 is materially connected to the first engagement element 50 via a second retaining arm 72.

[0103] The third coupling element 68 is materially connected to the first engagement element 50 via a third retaining arm 74.

[0104] The retaining arms 70, 72, 74 are essentially perpendicular to the first engagement element 50 and are essentially oriented along the connector depth direction T.

[0105] Furthermore, the first coupling element 64 is connected to the second engagement element 52 via a fourth retaining arm 76.

[0106] In addition, the second coupling element 66 is connected to the second engagement element 52 via a fifth retaining arm 78.

[0107] The third coupling element 68 is connected to the second engagement element 52 via a sixth retaining arm 80 (see Figures 5 and 6).

[0108] It should be understood that the numbering of the coupling elements 64, 66, 68 and the numbering of the retaining arms 70, 72, 74, 76, 78, 80 serves only for the sake of clarity. The numbering could just as easily be different if a different coupling element 64, 66, 68 were defined as the first coupling element and / or if a different retaining arm 70, 72, 74, 76, 78, 80 were defined as the first retaining arm.

[0109] The first coupling element 64 is essentially block-shaped. Since it is arranged at one end of the first retaining arm 70 and at one end of the fourth retaining arm 76, it can also be referred to as the head of the first retaining arm 70 and the fourth retaining arm 76.

[0110] The first coupling element 64 has a first coupling surface 82, the surface normal of which has a component extending along the connector depth direction T and a component extending along the connector length direction L. The surface normal of the first coupling surface 82 points towards the first engagement element 50 and the second engagement element 52. The first coupling surface 82 thus forms an undercut acting along the connector depth direction T (see Figure 6).

[0111] The first coupling surface 82 projects laterally opposite the first retaining arm 70 and the fourth retaining arm 76. In other words, the first coupling element 64 therefore includes a lateral projection at an end of the first retaining arm 70 and the fourth retaining arm 76 opposite the first engagement element 50 and the second engagement element 52.

[0112] The first coupling element 64 also has a first insertion ramp 84, which serves to couple the connector 46 to the mating connector 48.

[0113] Furthermore, a second insertion ramp 86 and a third insertion ramp 88 are provided on the first coupling element 64. These are arranged on sides of the coupling element 64 opposite the connector width direction B and serve to facilitate the insertion of the connector 46 into the second coupling groove 30 of the second component 28.

[0114] The second coupling element 66 is also essentially block-shaped. Since it is arranged at one end of the second retaining arm 72 and at one end of the fifth retaining arm 78, it can also be referred to as the head of the second retaining arm 72 and the fifth retaining arm 78.

[0115] The second coupling element 66 and the first coupling element 64 are mirror-symmetrical with respect to a connector transverse plane Q. The connector transverse plane Q runs perpendicular to the connector longitudinal direction L and is arranged along the connector longitudinal direction L centrally between the first retaining arm 70 and the second retaining arm 72, and centrally between the fourth retaining arm 76 and the fifth retaining arm 78.

[0116] The second coupling element 66 is therefore identical to the first coupling element 64 except for its mirror symmetry. This means that the second coupling element 66 has a second coupling surface 90, the surface normal of which has a component extending along the connector depth direction T and along the connector length direction L. The surface normal of the second coupling surface 90 points towards the first engagement element 50 and the second engagement element 52. The second coupling surface 90 thus forms an undercut acting along the connector depth direction T.

[0117] The second coupling surface 90 projects laterally opposite the second retaining arm 72 and the fifth retaining arm 78. In other words, the second coupling element 66 therefore includes a lateral projection at an end of the second retaining arm 72 and the fifth retaining arm 78 opposite the first engagement element 50 and the second engagement element 52.

[0118] The second coupling element 64 also has a first insertion ramp 92, which serves to couple the connector 46 to the counterpart connector 48.

[0119] Together, the first coupling surface 82 and the second coupling surface 90 form a tapered locking contour in the direction away from the first engagement element 50 and the second engagement element 52, respectively. The first coupling surface 82 and the second coupling surface 90 have an opening angle that is greater than or equal to 85 degrees and less than or equal to 95 degrees.

[0120] Together, the insertion ramps 84 and 92 form an insertion contour that tapers towards the first engagement element 50 and the second engagement element 52. The insertion ramps 84 and 92 have an opening angle that is greater than or equal to 35 degrees and less than or equal to 40 degrees.

[0121] Furthermore, the second coupling element 66 has a second insertion ramp 94 and a third insertion ramp 96. These are arranged on sides of the coupling element 66 opposite the connector width direction B and serve to facilitate the insertion of the connector 46 into the second coupling groove 30 of the second component 28. The third coupling element 68 differs geometrically from the first coupling element 64 and the second coupling element 66.

[0122] The third coupling element 68 comprises two coupling surfaces 98 and 100, which, for the sake of simplicity, will be referred to as the third coupling surface 98 and the fourth coupling surface 100 in the following explanations. The surface normals of the third coupling surface 98 and the fourth coupling surface 100 again have a component extending along the connector depth direction T. As before, the surface normals point in the direction of the first engagement element 50 and the second engagement element 52. The surface normals of the third coupling surface 98 and the fourth coupling surface 100 are therefore aligned with respect to the connector depth direction T.

[0123] The surface normals of the third coupling surface 98 and the fourth coupling surface 100 also have a component extending along the connector's longitudinal direction L. However, with respect to the connector's longitudinal direction L, the surface normals of the third coupling surface 98 and the fourth coupling surface 100 are oriented in opposite directions. The surface normals point away from the third retaining arm 74 and the sixth retaining arm 80, respectively.

[0124] As before, the third coupling surface 98 and the fourth coupling surface 100 each form an undercut acting along the connector depth direction T.

[0125] The third coupling surface 98 and the fourth coupling surface 100 each project laterally opposite the third retaining arm 74 and the sixth retaining arm 80, respectively. In other words, the third coupling element 68 comprises two lateral projections, each located at an end of the third retaining arm 74 and the sixth retaining arm 80 opposite the first engagement element 50 and the second engagement element 52. Along the longitudinal direction L of the connector, the two projections are located on opposite sides of the third retaining arm 74 and the sixth retaining arm 80.

[0126] The third coupling element 66 also has two insertion ramps 102, 104, which serve to couple the connector 46 to the mating connector 48. The first insertion ramp 102 and the second insertion ramp 104 are arranged along the longitudinal direction L of the connector on opposite sides of the coupling element 68.

[0127] The third coupling element 68 thus resembles a Christmas tree when viewed along the connector width direction B due to the arrangement of the insertion ramps 102, 104 and the coupling surfaces 98, 100 (see in particular Figures 6 and 8).

[0128] Together, the third coupling surface 98 and the fourth coupling surface 100 form a widening locking contour in the direction away from the first engagement element 50 and the second engagement element 52. The third coupling surface 98 and the fourth coupling surface 100 have an opening angle that is greater than or equal to 85 degrees and less than or equal to 95 degrees.

[0129] Together, the insertion ramps 102 and 104 form an insertion contour that widens towards the first engagement element 50 and the second engagement element 52. The insertion ramps 102 and 104 have an opening angle that is greater than or equal to 35 degrees and less than or equal to 40 degrees.

[0130] As already mentioned, a movement space 54 is provided between the first engagement element 50 and the second engagement element 52. This movement space 54 also extends into an area between the first retaining arm 70 and the fourth retaining arm 76, into an area between the second retaining arm 72 and the fifth retaining arm 78, and into an area between the third retaining arm 74 and the sixth retaining arm 80.

[0131] This freedom of movement 54 as well as the mechanical properties of the retaining arms 70, 72, 74, 76, 78, 80 result in a defined elastic compliance of the connector 46.

[0132] In this context, all retaining arms 70, 72, 74, 76, 78, 80 are elastically flexible in the connector width direction B. This allows the first engagement element 50 and the second engagement element 52 to be brought close together under the influence of an elastic deformation force by utilizing this elastic flexibility. This elastic flexibility enables the connector 46 to be anchored in the first coupling groove 14.

[0133] In other words, the first engagement element 50 is elastically compliant for anchoring in the first undercut of the first coupling groove 14 in the connector's width direction B. The same applies to the second engagement element 52, i.e., the second engagement element 52 is elastically compliant for anchoring in the second undercut of the first coupling groove 14 in the connector's width direction B. The first engagement element 50 and the second engagement element 52 are thus brought close to each other, particularly by utilizing elastic compliance, when the first engagement element 50 and the second engagement element 52 are arranged within the first coupling groove 14 but do not yet engage in their respective associated undercuts 24, 26.

[0134] Furthermore, the first retaining arm 70, the second retaining arm 72, the fourth retaining arm 76, and the fifth retaining arm 78 are elastically flexible in the longitudinal direction L of the connector. As already mentioned, the first coupling element 64 and the second coupling element 66 are provided on these retaining arms 70, 72, 76, 78, and are mirror-symmetrical with respect to the transverse plane Q of the connector.

[0135] This elastic compliance along the connector's longitudinal direction L allows a coupling element of the counter-connector 48 to be accommodated between the first coupling element 64 and the second coupling element 66. For this purpose, the first coupling element 64 and the second coupling element 66 can, in particular, be moved apart from each other by utilizing the elastic compliance along the connector's longitudinal direction L, in order to insert and then accommodate the coupling element of the counter-connector 48 between them.

[0136] The insertion ramps 102 and 104 of the mating connector 48 thus push the insertion ramps 84 and 92 of the connector 46 apart, while the insertion ramps 102 and 104 of the connector 46 push the insertion ramps 84 and 92 of the mating connector 48 apart, so that subsequently the third coupling surface 98 and the fourth coupling surface 100 of the mating connector 48 with the first coupling surface 82 and the second coupling surface 90 of the connector 46 and the third coupling surface 98 and the fourth coupling surface 100 of the connector 46 with the first coupling surface 82 and the second coupling surface 90 of the mating connector 48 form an undercut connection.

[0137] In the embodiments according to Figures 1 to 8, the connector 46 and the mating connector 48 are designed as identical parts. This means that the above explanations regarding the connector 46 also apply to the mating connector 48. For the sake of simplicity, the same reference numerals are used for the mating connector 48 as for the connector 46.

[0138] Both the connector 46 and the mating connector 48 are manufactured here as one-piece injection-molded parts.

[0139] To connect the first component 12 and the second component 28, the connector 46 is anchored in the first coupling groove 14 and the counter connector 48 is anchored in the second coupling groove 30.

[0140] Furthermore, the third coupling element 68 of the mating connector 48 is positively and force-fittedly engaged between the first coupling element 64 and the second coupling element 66 of the connector 46. Similarly, the third coupling element 68 of the connector 46 is engaged between the first coupling element 64 and the second coupling element 66 of the mating connector 48.

[0141] In this state, the ends of the first coupling element 64, the second coupling element 66, and the third coupling element 68 of the connector 46, facing away from the first engagement element 50 and the second engagement element 52 respectively, are arranged section by section in the movement space 54 of the mating connector 48. In other words, the ends of the first coupling element 64, the second coupling element 66, and the third coupling element 68 of the connector 46 are positioned section by section between the first engagement element 50 and the second engagement element 52 of the mating connector 48. The movement space 54 of the mating connector 48 thus also forms a receiving space 106 of the mating connector 48 for coupling elements 64, 66, 68 of the connector 46. In this way, movement of the first engagement element 50 and the second engagement element 52 of the mating connector 48 is blocked.In other words, elastic yielding of the associated retaining arms 70, 72, 74, 76, 78, 80 of the mating connector 48 in the connector width direction B is blocked. The mating connector 48 is thus secured in the second coupling groove 30 of the second component 28.

[0142] Similarly, the ends of the first coupling element 64, the second coupling element 66, and the third coupling element 68 of the mating connector 48, each facing away from the first engagement element 50 and the second engagement element 52 respectively, are arranged section by section within the movement space 54 of the connector 46. In other words, the ends of the first coupling element 64, the second coupling element 66, and the third coupling element 68 of the mating connector 48 are positioned section by section between the first engagement element 50 and the second engagement element 52 of the connector 46. The movement space 54 of the connector 46 thus also forms a receiving space 106 of the connector 46 for coupling elements of the mating connector 48. In this way, movement of the first engagement element 50 and the second engagement element 52 of the connector 46 is blocked.In other words, elastic yielding of the associated retaining arms 70, 72, 74, 76, 78, 80 of the connector 46 in the connector's lateral direction B is blocked. The connector 46 is thus secured in the first coupling groove 14 of the second component 12.

[0143] Overall, this ensures that neither the connector 46 nor the counter-connector 48 can detach from its anchorage in the respective associated coupling groove 14, 30 as long as the connector 46 and the counter-connector 48 are coupled.

[0144] The component connection 10 described above can be produced by means of a method for coupling the first component 12 and the second component 28. In a first step, the connector 46, which can also be referred to as the first connector 46 for this method, is inserted along the groove depth direction 20 into the first coupling groove 14 and anchored in the first undercut 24 and in the second undercut 26 of the first coupling groove 14.

[0145] In other words, the first engagement element 50 and the second engagement element 52 are brought into engagement with the undercuts 24, 26.

[0146] In a second step, the counter connector 48, which can also be referred to as the second connector 48 for this process, is inserted along the groove depth direction 36 into the second coupling groove 30 and anchored in the first undercut 40 and in the second undercut 42 of the second coupling groove 30.

[0147] In other words, the first engagement element 50 and the second engagement element 52 are brought into engagement with the undercuts 40, 42.

[0148] As already mentioned, the elastic compliance of the connectors 46, 48 along the connector width direction B is used for this purpose.

[0149] Then, i.e. in a third step, the connector 46, i.e. the first connector 46, and the counterpart connector 48, i.e. the second connector 48, are plugged into each other and thus coupled.

[0150] For this purpose, the third coupling element 68 of the mating connector 48 is positively engaged between the first coupling element 64 and the second coupling element 66 of the connector 46, utilizing the elastic flexibility along the connector's longitudinal direction L. Furthermore, the third coupling element 68 of the connector 46 is positively engaged between the first coupling element 64 and the second coupling element 66 of the mating connector 48, also utilizing the elastic flexibility along the connector's longitudinal direction L. In this context, the elastic flexibility along the connector's longitudinal direction L is essentially provided by the first retaining arm 70, the second retaining arm 72, the fourth retaining arm 76, and the fifth retaining arm 78 of the connector 46, as well as by the first retaining arm 70, the second retaining arm 72, the fourth retaining arm 76, and the fifth retaining arm 78 of the mating connector 48.The retaining arms 70, 72, 76, 78 can also be elastically deformed in a coupled state of the connector 46 and the counter-connector 48 and thus, due to the tension associated with the elastic deformation, additionally lead to a force-fit coupling of the connector 46 and the counter-connector 48.

[0151] The retaining arms 70, 72, 76, 78 of the connector 46 and the counter-connector 48 have a ratio of longitudinal extent (in connector depth direction T) to transverse extent (in connector length direction L) of 2.5 to 3.5, in particular of 3, which can also be referred to as the elongation ratio of the retaining arm.

[0152] The coupling elements 64, 66 of the connector 46 and the counter-connector 48 respectively have a ratio of longitudinal extent (in connector depth direction T) to transverse extent (in connector length direction L) of 1.3 to 2, which can also be referred to as the scaling ratio of the coupling element.

[0153] The ratio of the longitudinal extensions of the retaining arms 70, 72, 76, 78 of the connector 46 or of the counter-connector 48 to the longitudinal extension of the coupling elements 64, 66 of the connector 46 or of the counter-connector 48 is 1 to 1.2.

[0154] The retaining arms 70, 72, 76, 78 of the connector 46 or of the counter-connector 48 have a transverse extent (in connector longitudinal direction L) that is greater than a thickness (in connector width direction B) of the retaining arms 70, 72, 76, 78 of the connector 46 or of the counter-connector 48.

[0155] In this context, an assembly consisting of a first component 12 and a second component 28, as well as a connector 46, 48 anchored in the respective coupling groove 14, 30, can also be referred to as a component arrangement. The component connection thus comprises two component arrangements, one of which includes the first component 12 and the connector 46, and the other of which includes the second component 28 and the connector 48.

[0156] Figure 9 shows an alternative embodiment of the connector assembly 44. The following discussion focuses solely on the differences compared to the connector assembly 44 already described and the connectors 46, 48 comprised of the connector assembly 44.

[0157] In the present case, the differences concern the coupling elements.

[0158] In the embodiment according to Figure 9, the connector 46 and the counter-connector 48 are designed differently, i.e., the connector 46 and the counter-connector 48 are not designed as identical parts.

[0159] The connector 46 comprises a first coupling element 64 and a second coupling element 66. As before, the first coupling element 64 is arranged at the end of a first retaining arm 70, which connects the first coupling element 64 to the first engagement element 50.

[0160] The second coupling element 66 is arranged at the end of a second retaining arm 72, which materially connects the second coupling element 66 to the first engagement element 50.

[0161] In the example shown in Figure 9, a third retaining arm 74 connects the first coupling element 64 and the second engagement element 52. Furthermore, a fourth retaining arm 76 connects the second coupling element 66 and the second engagement element 52.

[0162] Functionally and in terms of their basic structure, the first coupling element 64 and the second coupling element 66 of the embodiment shown in Figure 9 correspond to the first coupling element 64 and the second coupling element 66 of the embodiment shown in Figures 1 to 8. The only difference is that the retaining arms, i.e., the first retaining arm 70, the second retaining arm 72, the third retaining arm 74, and the fourth retaining arm 76, are now slightly curved. In the example shown in Figure 9, the mating connector 48 comprises only a single coupling element, which is therefore referred to as the first coupling element 64.

[0163] The first coupling element 64 from the example in Figure 9 corresponds functionally and in terms of its basic structure essentially to the third coupling element 68 from the example in Figures 1 to 8. Since the first coupling element 64 in Figure 9 has two coupling surfaces, these are designated 82a and 82b. The insertion ramps are accordingly designated 84a and 84b. In contrast to the example in Figures 1 to 8, the insertion ramps 84a and 84b in the example in Figure 9 are curved. The insertion ramps 84a and 84b can therefore also be described as round or convex.

[0164] The elongation ratio of the retaining arms 70, 72, 76, 78 of the connector 46 is significantly smaller than that of the connector 46 from Figures 1 to 8, which increases the joining and holding forces.

[0165] The counter connector 48 also has additional blocking elements which are arranged on sides of the counter connector 48 opposite in the connector length direction L, and thus further reduces or completely prevents (elastic) deformation of the engagement elements 50, 52 of the connector 46 under load.

[0166] Another embodiment of a connector assembly 44 is shown in Figure 10. Again, only the differences compared to the embodiments already described are discussed.

[0167] In the example from Figure 10, the connector 46 and the mating connector 48 are again designed as identical parts.

[0168] Each of the connectors 46, 48 comprises a first coupling element 64 and a second coupling element 66. These correspond functionally and in terms of their basic structure to the first coupling element 64 and the second coupling element 66 from the example in Figures 1 to 8. However, the first coupling element 64 and the second coupling element 66 are no longer arranged symmetrically. Rather, the first coupling element 64 differs from the second coupling element 66 in that the second coupling surface 90 of the second coupling element 66 is located much closer to the engagement elements 50, 52 of the respective connector 46, 48 than the first coupling surface 82 of the first coupling element 64.

[0169] This configuration makes it possible that, in a state where the connector 46 and the counterpart connector 48 are coupled, the first coupling surface 82 of the connector 46 is in contact with the second coupling surface 90 of the counterpart connector 48, and the first coupling surface 82 of the counterpart connector 48 is in contact with the second coupling surface 90 of the connector 46.

[0170] Furthermore, the second coupling elements 66 in the example of Figure 10 are each provided with a positioning surface 108. The positioning surfaces 108 serve to position the connector 46 and the mating connector 48 relative to each other along the connector's longitudinal direction L by contacting the positioning surface 108 of the connector 46 with the positioning surface 108 of the mating connector 48.

[0171] An additional embodiment of a connector assembly 44 with a connector 46 and a mating connector 48 is shown in Figure 11. Again, only the differences compared to the embodiments already described are discussed.

[0172] The connector 46 and the mating connector 48 are designed differently in the example of Figure 11, i.e., they are not identical parts.

[0173] The first coupling element 64 and the second coupling element 66, as well as the associated retaining arms, essentially correspond to the first coupling element 64 and the second coupling element 66 from the embodiment according to Figures 1 to 8.

[0174] The first coupling element 64 of the mating connector 48 essentially corresponds to the third coupling element 68 of the mating connector 48 from Figures 1 to 8. Since the first coupling element 64 of the mating connector 48 from Figure 11 comprises two coupling surfaces, these are designated 82a and 82b. Accordingly, the two insertion ramps are designated 84a and 84b. These are less tapered than in the example shown in Figures 1 to 8. Together, the insertion ramps 84a and 84b form an insertion contour that widens towards the first engagement element 50 and the second engagement element 52. The insertion ramps 84a and 84b have an opening angle of 15 to 20 degrees.

[0175] The embodiment shown in Figure 11 can also be considered a variant of the embodiment shown in Figure 9. The variant in Figure 11 features additional blocking elements arranged on sides of the connector 46 opposite each other in the connector's longitudinal direction L, thus further reducing or completely preventing (elastic) deformation of the engagement elements 50, 52 of the mating connector 48 under load. These additional blocking elements can also serve as spring elements against which the coupling elements 64, 66 of the connector 46 can be supported, in order to limit the elastic compliance along the connector's longitudinal direction L in the event of large deflections of the coupling elements 64, 66.

[0176] Figure 12 shows another embodiment of a connector assembly 44 with a connector 46 and a mating connector 48. As before, only the differences compared to the embodiments already described will be discussed. The embodiment of Figure 12 largely corresponds to the embodiment according to Figure 8. However, the insertion ramps 102, 104 of the third coupling element 68 are now each provided with an intermediate detent step 110, 112.

[0177] The intermediate detent steps 110 112 are designed as comparatively small undercuts of the insertion ramps 102, 104.

[0178] The intermediate locking steps 110, 112 can thus be engaged by the first coupling surface 82 and the second coupling surface 90 of the respective other connector from the connector 46 and in the mating connector 48 in order to fasten the connector 46 and the mating connector 48 together with comparatively little force and relatively loosely. This can serve to initially fix the first component 12 and the second component 28 in an intermediate state when creating a component connection 10, in which there is still a gap between the contact surface 16 of the first component 14 and the contact surface 32 of the second component 28.

[0179] Another embodiment of a connector assembly 44 with a connector 46 and a mating connector 48 is shown in Figures 13 to 15.

[0180] As before, only the differences compared to the previously explained embodiments will be discussed below.

[0181] In the example from Figures 13 to 15, the connector 46 and the counter-connector 48 are designed differently, i.e., the connector 46 and the counter-connector 48 are not designed as identical parts.

[0182] The connector 46 again comprises a first engagement element 50 and a second engagement element 52.

[0183] The first engagement element 50 is again strip-shaped, but unlike the previous embodiments, it is designed as a projection on a first retaining plate 114. The first engagement element 50, i.e., the projection, is oriented outwards with respect to the connector's lateral direction B.

[0184] Similarly, the second engagement element 52 is again rib-shaped, but unlike the previous embodiments, it is designed as a projection on a second retaining plate 116. The second engagement element 52, i.e., the projection, is oriented outwards with respect to the connector's lateral direction B. The first engagement element 50 and the second engagement element 52 are oriented opposite to each other along the connector's lateral direction. In the embodiment according to Figures 13 to 15, the first retaining plate 114 and the second retaining plate 116 are designed as opposite sections of an annular retaining element 118.

[0185] The ring-shaped retaining element 118 of the connector 46 forms an insertion opening into which the mating connector 48 can be inserted section by section in order to join the connector 46 and the mating connector 48 together to form the connector assembly 44.

[0186] In other words, the first retaining plate 114 and the second retaining plate 116 are spaced apart from each other and arranged parallel to each other, with adjacent ends of the first retaining plate 114 and the second retaining plate 116 being connected to each other by arc-shaped connecting sections.

[0187] The ring-shaped retaining element 118 is configured such that it is elastically flexible in the connector width direction B. Thus, the first retaining plate 114 and the second retaining plate 116 are also elastically flexible in the connector width direction B. As already explained, this serves to anchor the first engagement element 50 and the second engagement element 52 in an associated undercut 24, 26 of a coupling groove 14.

[0188] The freedom of movement 54 therefore extends into the interior of the ring-shaped retaining element 118.

[0189] The connector 46 also comprises a total of four coupling elements. A first coupling element 64 and a second coupling element 66 are designed as projections of the first retaining plate 114. The first coupling element 64 and the second coupling element 66 are arranged on the side of the first retaining plate 114 opposite the first engagement element 50.

[0190] Each coupling element, consisting of the first coupling element 64 and the second coupling element 66, corresponds in function and basic structure to the third coupling element 68 according to the embodiment shown in Figures 1 to 8, and reference can therefore be made to it. A third coupling element 68 and a fourth coupling element 120 are designed as projections of the second retaining plate 116. The third coupling element 68 and the fourth coupling element 120 are arranged on a side of the second retaining plate 116 opposite the second engagement element 52.

[0191] Each of the third coupling element 68 and the fourth coupling element 120 corresponds in function and basic structure to the third coupling element 68 according to the embodiment shown in Figures 1 to 8, so reference can be made to it. The coupling surfaces of the fourth coupling element 120 are designated by reference numerals 126, 126a, 126b and the insertion ramps of the fourth coupling element 120 by reference numerals 128, 128a, 128b.

[0192] Furthermore, all coupling elements, i.e. the first coupling element 64, the second coupling element 66, the third coupling element 68 and the fourth coupling element 120, are designed identically on their own.

[0193] Furthermore, the third coupling element 68 is positioned opposite the first coupling element 64, maintaining a distance. Similarly, the fourth coupling element 120 is positioned opposite the second coupling element 66, maintaining a distance.

[0194] The distance between the opposing coupling elements 64, 68, 66, 120 is necessary to ensure the elastic compliance of the connector 46 in the connector width direction B.

[0195] In the counterpart connector 48, the first engagement element 50 and the second engagement element 52 essentially correspond to the first engagement element 50 and the second engagement element 52 of the counterpart connector 48 from Figures 1 to 8.

[0196] In the embodiment according to Figures 13 to 15, the mating connector 48 also comprises a total of four coupling elements 64, 66, 68, 120. - M -

[0197] The first coupling element 64 is materially connected to the first engagement element 50 via a first retaining arm 70. The second coupling element 66 is materially connected to the first engagement element 50 by means of a second retaining arm 72. The third coupling element 68 is materially connected to the first engagement element 50 via a third retaining arm 74. The fourth coupling element 120 is connected to the first engagement element 50 via a fourth retaining arm 76.

[0198] Furthermore, the first coupling element 64 is connected to the second engagement element 52 via a fifth retaining arm 78. The second coupling element 66 is materially connected to the second engagement element 52 via a sixth retaining arm 80. The third engagement element 68 is materially connected to the second engagement element 52 via a seventh retaining arm 122. The fourth engagement element 120 is materially connected to the second engagement element 52 via an eighth retaining arm 124.

[0199] The first coupling element 64, the second coupling element 66, as well as the first retaining arm 70, the second retaining arm 72, the fifth retaining arm 78, and the sixth retaining arm 80 correspond to the first coupling element 64 and the second coupling element 66 from the embodiment according to Figures 1 to 8 and the associated retaining arms. Reference can therefore be made to the explanations of the embodiment according to Figures 1 to 8.

[0200] In the embodiment according to Figures 13 to 15, however, the first coupling element 64 and the second coupling element 66 of the counterpart connector 48 are designed to interact with the first coupling element 64 and the third coupling element 68 of the connector 46 (see in particular Figure 15).

[0201] The third coupling element 68, the fourth coupling element 120, as well as the third retaining arm 74, the fourth retaining arm 76, the seventh retaining arm 122, and the eighth retaining arm 124 also correspond to the first coupling element 64 and the second coupling element 66 from the embodiment according to Figures 1 to 8 and the associated retaining arms. Therefore, reference can also be made here to the explanations of the embodiment according to Figures 1 to 8. In the embodiment according to Figures 13 to 15, however, the third engagement element 68 and the fourth engagement element 120 of the mating connector 48 are configured to interact with the second engagement element 66 and the fourth engagement element 120 of the connector 46 (see in particular Figure 15).

[0202] As already explained, the interior of the ring-shaped retaining element 118 represents a movement space 54. At the same time, the interior of the ring-shaped retaining element 118 also represents the receiving space 106 for the coupling elements 64, 66, 68, 120 of the counterpart connector 48.

[0203] The coupling elements 64, 66, 68, 120 of the mating connector 48 extend in the connector's width direction B such that the distance between the coupling elements 64, 66, 68, 120 of the mating connector 48 and the retaining plates 114, 116 of the connector 46 is less than the thickness of one of the engagement elements 50, 52. Preferably, the distance is less than half the thickness of one of the engagement elements 50, 52. The thickness of the engagement elements 50, 52 extends in the direction of the connector's width direction B. In the example shown in Figure 14, there is only a slight clearance of a few tenths of a millimeter between the coupling elements 64, 66, 68, 120 of the mating connector 48 and the retaining plates 114, 116 of the connector 46.

[0204] Consequently, elastic compliance of the first retaining plate 114 and the second retaining plate 116 along the connector width direction B is blocked when the first retaining element 64, the second retaining element 66, the third retaining element 68 and the fourth retaining element 120 of the counter connector 48 are arranged at least sectionally in the receiving space 106 of the connector 46.

[0205] Figures 16 to 18 show a variant of the connector assembly 44 according to Figures 13 to 15.

[0206] In this variant, the contours of the coupling elements 64, 66, 68, 120 of the connector 46 and the mating connector 48 are adapted such that a force profile that is as uniform as possible is required for coupling the connector 46 and the mating connector 48 to one another; that is, the joining force with which the connector 46 and the mating connector 48 are moved towards each other for coupling, i.e., inserted into one another, is essentially constant along as large a proportion of the movement path as possible. The movement path can also be referred to as the insertion path. It is understood that larger fluctuations in the joining force are to be expected in an initial and an end region of the movement path, so that the essentially constant joining force applies particularly to a section of the movement path lying between the initial and end regions.

[0207] In this variant, the joining force to couple the connector 46 and the counter-connector 48 together is a maximum of 200 N.

[0208] The essentially constant joining force results from an interplay of the frictional forces acting between the coupling elements 64, 66, 68, 120 of the connector 46 and the coupling elements 64, 66, 68, 120 of the counter-connector 48, and the forces required for the elastic deformation of the retaining arms 70, 72, 74, 76, 78, 80, 122, 124. It is understood that the frictional forces depend on an elastic deformation of the retaining arms 70, 72, 74, 76, 78, 80, 122, 124, since normal forces influencing the frictional forces result from the elastic deformation of the retaining arms 70, 72, 74, 76, 78, 80, 122, 124.

[0209] For this purpose, the insertion ramps of all coupling elements 64, 66, 68, 120 of connector 46 are slightly curved, i.e., bent in a plane. In the example shown, the contour of the insertion ramps is calculated as an nth-order polynomial over a certain number of support points. The joining force was calculated for each of these support points.

[0210] The insertion ramps of all coupling elements 64, 66, 68, 120 have a steep slope relative to the insertion direction in the area of ​​the insertion opening of the connector 46. This means that a comparatively high proportion of the joining force is used at this point to elastically deform the retaining arms 70, 72, 74, 76, 78, 80, 122, 124. In other words, a comparatively high proportion of the joining force is due to the elastic deformation of the retaining arms 70, 72, 74, 76, 78, 80, 122, 124. In an area located in the middle of the connector 46 relative to the insertion direction, the slope is comparatively shallow. Accordingly, further elastic deformation of the retaining arms 70, 72, 74, 76, 78, 80, 122, 124 is comparatively small. Thus, a comparatively large proportion of the joining force is required to overcome frictional forces acting between the coupling elements 64, 66, 68, 120 of the connector 46 and the coupling elements 64, 66, 68, 120 of the counter-connector 48.In other words, a large proportion of the joining force is due to frictional forces acting between the coupling elements 64, 66, 68, 120 of the connector 46 and the coupling elements 64, 66, 68, 120 of the counter-connector 48.

[0211] In the area of ​​the maximum extension of the coupling elements 64, 66, 68, 120 of the connector 46 in the longitudinal direction of the connector, the insertion ramps of all coupling elements 64, 66, 68, 120 have the smallest slope.

[0212] In the example shown, the slope of the insertion ramps of all coupling elements 64, 66, 68, 120 decreases continuously from one side facing the insertion opening of the connector 46 to a region of the maximum extension of the coupling elements 64, 66, 68, 120 of the connector 46 in the longitudinal direction of the connector.

[0213] The leading edges of all coupling elements 64, 66, 68, 120 therefore have a parabolic shape or a shape resembling a parabola and are convex.

[0214] The coupling surfaces 98, 100, 126a, 126b are shorter with respect to the connector depth direction T than the insertion ramps 102, 104, 128a, 128b.

[0215] The length of the coupling surfaces 98, 100, 126a, 126b, measured along the connector depth direction T, is 3 mm to 7 mm, in particular 4 mm to 6 mm. In the illustrated embodiment, the length of the coupling surfaces 98, 100, 126a, 126b, measured along the connector depth direction T, is 4.9 mm. The length of the insertion ramps 102, 104, 128a, 128b, measured along the connector depth direction T, is 1 to 3 times the length of the coupling surfaces 98, 100, 126a, 126b, measured along the connector depth direction T. In the illustrated embodiment, the length of the insertion ramps 102, 104, 128a, 128b measured along the connector depth direction T is 7.4 mm, which is essentially 1.5 times the length of the coupling surfaces 98, 100, 126a, 126b measured along the connector depth direction T.

[0216] In this variant, the contours of the coupling surfaces 98, 100, 126a, 126b of the connector 46 and the counter-connector 48 are adapted such that a holding force generated by the coupling surfaces 98, 100, 126a, 126b of the connector 46 and the counter-connector 48 has a force profile that is as uniform as possible in the insertion direction, i.e., a force required to pull the connector 46 and the counter-connector 48 apart from the coupled, i.e., inserted into each other, position is essentially constant along the path of movement.

[0217] The essentially constant holding force results from an interplay of the frictional forces acting between the coupling elements 64, 66, 68, 120 of the connector 46 and the coupling elements 64, 66, 68, 120 of the counter-connector 48. It is understood that the frictional forces depend on an elastic deformation of the retaining arms 70, 72, 74, 76, 78, 80, 122, 124, since normal forces influencing the frictional forces result from the elastic deformation of the retaining arms 70, 72, 74, 76, 78, 80, 122, 124.

[0218] In this variant, the holding force between the coupled connectors 46, 48 is approximately 200 N, regardless of the position in which the coupling surfaces 82, 90, 98, 100 of the counterpart connector 48 are in contact with the coupling surfaces 98, 100, 126a, 126b of the connector 46.

[0219] For this purpose, the coupling surfaces 98, 100, 126a, 126b of all coupling elements 64, 66, 68, 120 of connector 46 are slightly curved and convex.

[0220] The coupling surfaces 98, 100, 126a, 126b of all coupling elements 64, 66, 68, 120 have a comparatively low slope in the longitudinal direction of the connector 46 with respect to the insertion direction in the area of ​​the maximum extension of the coupling elements 64, 66, 68, 120 and a large slope in the area opposite the insertion opening of the connector 46 with respect to the insertion direction.

[0221] In the area of ​​the maximum extension of the coupling elements 64, 66, 68, 120 of the connector 46 in the longitudinal direction of the connector, the insertion ramps of all coupling elements 64, 66, 68, 120 have the smallest slope.

[0222] In the example shown, the slope of the coupling surfaces 98, 100, 126a, 126b of all coupling elements 64, 66, 68, 120 decreases continuously from a region of the maximum extent of the coupling elements 64, 66, 68, 120 of the connector 46 in the longitudinal direction of the connector to a side facing away from the insertion opening of the connector 46.

[0223] The coupling surfaces 98, 100, 126a, 126b of all coupling elements 64, 66, 68, 120 therefore have a parabolic shape or a shape similar to a parabola and are convex.

[0224] Furthermore, the insertion ramps each transition over a radius into the associated coupling surfaces98, 100, 126a, 126b.

[0225] Furthermore, the free ends of the coupling elements 64 and 66 of the connector 48, as well as the free ends of the coupling elements 68 and 120 of the connector 48, are always spaced apart from each other. This applies in particular even in a relaxed state of the connector 48, for example, in a state in which the connector 48 is not coupled to the connector 46. In the example shown, this distance is 4 mm.

[0226] This spacing is helpful when positioning connector 48 relative to connector 46, i.e., when the coupling elements 64, 66, 68, and 120 of connector 46 must each be positioned in a corresponding gap between the free ends of coupling elements 64 and 66 of connector 48, or in a corresponding gap between the free ends of coupling elements 68 and 120 of connector 48. Due to this spacing, connectors 46 and 48 can be easily coupled even if their alignment relative to each other is relatively imprecise. The spacing between the free ends of coupling elements 64 and 66 of connector 48, as well as between the free ends of coupling elements 68 and 120 of connector 48, thus provides a degree of self-positioning or self-centering.

[0227] Furthermore, the coupling elements 64, 66, 68, 120 of the connector 46 are designed in relation to this distance such that the retaining arms 70, 72, 74, 76, 78, 80, 122, 124 are always elastically deformed, i.e., pre-stressed, in a state in which the connectors 46, 48 are coupled to each other. This ensures the reliable coupling of the connectors 46, 48.

[0228] In the illustrated embodiment, the maximum dimension of the coupling elements 64, 66, 68, 120 of the connector 46 in a direction parallel to the distance between the free ends of the coupling elements 64 and 66 of the connector 48 and to the distance between the free ends of the coupling elements 68 and 120 of the connector 48, i.e., in the longitudinal direction L of the connector, is two to three times greater than this distance. In the illustrated embodiment, this dimension is 10.5 mm.

[0229] Furthermore, it is understood that a dimension of the coupling surfaces 98, 100, 126a, 126b of the connector 46 in a direction parallel to the distance between the free ends of the coupling elements 64 and 66 of the connector 48 and to the distance between the free ends of the coupling elements 68 and 120 of the connector 48 must not be smaller than this distance. Otherwise, the retaining arms 70, 72, 74, 76, 78, 80, 122, 124 are not pre-tensioned.

[0230] The embodiments described above always relate to or include connectors 46, 48 having two engagement elements 50, 52. It is understood, however, that connectors 46, 48 with only a single engagement element 50, 52 are also conceivable. Such connectors 46, 48 can be anchored in a coupling groove 14, 30 having only a single, matching undercut 24, 26, 40, 42. Such a coupling groove 14, 30 would therefore have an undercut 24, 26, 40, 42 on only one side. It is also understood that the coupling elements 64, 66, 68, 120 described here with reference to the connectors 46, 48, and in particular their geometric design, can also be used independently of the connectors 46, 48. This means that the coupling elements 64, 66, 68, 120 described in connection with the connectors 46, 48 can also be used in connectors that are attached to an associated component in a different way than with the engagement elements 50, 52.For example, connectors are conceivable in this context which use the coupling elements 64, 66, 68, 120, but are glued, screwed or otherwise anchored without undercut in the respective associated component.

[0231] Alternatively, a connector is conceivable that is provided for the mechanical fastening of a first component to a second component, wherein the first component has at least one first coupling groove which has at least one undercut acting along a groove depth direction, wherein the connector comprises: an engagement element for anchoring in an undercut, in particular a circular segment or circular segment, wherein the connector is inserted in particular along the circular segment or circular segment undercut, and a coupling element 64, 66, 68, 120 for insertion into a mating connector, wherein the coupling element 64, 66, 68, 120 and the engagement element are materially bonded. In this example, the engagement element is in particular rigid, i.e., not elastically flexible. The foregoing explanations apply in particular to the coupling elements 64, 66, 68, 120 shown in Figures 16 to 18.

[0232] Reference symbol list

[0233] 10 Component connection

[0234] 12 first component

[0235] 12a Top side of the first component

[0236] 12b Underside of the first component

[0237] 12c Edge of the first component

[0238] 14 first coupling groove

[0239] 16. Mounting area of ​​the first component

[0240] 18 Groove opening of the first coupling groove

[0241] 20 Groove depth direction of the first coupling groove

[0242] 22 Groove base of the first coupling groove

[0243] 24 first undercut of the first coupling groove

[0244] 26 second undercut of the first coupling groove

[0245] 28 second component

[0246] 28a Top side of the second component

[0247] 28b Underside of the second component

[0248] 28c Edge of the second component

[0249] 30 second coupling groove

[0250] 32 Mounting surface of the second component

[0251] 34 Groove opening of the second coupling groove

[0252] 36 Groove depth direction of the second coupling groove

[0253] 38 Groove base of the second coupling groove

[0254] 40 First undercut of the second coupling groove

[0255] 42 second undercut of the second coupling groove

[0256] 44 Connector assembly

[0257] 46 connectors, first connector

[0258] 48 counter connectors, second connector

[0259] 50 first engagement element 52 second engagement element

[0260] 54 Freedom of movement

[0261] 56 first intervention area

[0262] 58 second intervention area

[0263] 60 first insertion ramp

[0264] 62 second insertion ramp

[0265] 64 first coupling element

[0266] 66 second coupling element

[0267] 68 third coupling element

[0268] 70 first support arm

[0269] 72 second support arm

[0270] 74 third support arm

[0271] 76 fourth support arm

[0272] 78 fifth support arm

[0273] 80 sixth support arm

[0274] 82 first coupling area

[0275] 82a first coupling area

[0276] 82b first coupling area

[0277] 84 First insertion ramp of the first coupling element

[0278] 84a first insertion ramp of the first coupling element

[0279] 84b first insertion ramp of the first coupling element

[0280] 86 second insertion ramp of the first coupling element

[0281] 88 third insertion ramp of the first coupling element

[0282] 90 second coupling area

[0283] 92 First insertion ramp of the second coupling element

[0284] 94 second insertion ramp of the second coupling element

[0285] 96 third insertion ramp of the second coupling element

[0286] 98 third coupling area 100 fourth coupling area

[0287] 102 First insertion ramp of the third coupling element

[0288] 104 second insertion ramp of the third coupling element

[0289] 106 Recording Room

[0290] 108 Positioning area

[0291] 110 Intermediate detent

[0292] 112 Intermediate detent

[0293] 114 first stop

[0294] 116 second retaining plate

[0295] 118 ring-shaped retaining element

[0296] 120 fourth coupling element

[0297] 122 seventh support arm

[0298] 124 eighth support arm

[0299] 126 Coupling area of ​​the fourth coupling element

[0300] 126a Coupling surface of the fourth coupling element

[0301] 126b Coupling surface of the fourth coupling element

[0302] 128 Inlet ramp of the fourth coupling element

[0303] 128a Lead-in ramp of the fourth coupling element

[0304] 128b Lead-in ramp of the fourth coupling element

[0305] B Connector - Width direction

[0306] L connector length direction

[0307] T-connector depth direction

[0308] M Connector-Middle level

[0309] Q connector cross plane

Claims

Patent claims 1. Connector (46, 48) for mechanically fastening a first component (12) to a second component (28), wherein the first component (12) has at least one first coupling groove (14) which has at least one undercut (24, 26) acting along a groove depth direction (20), wherein the connector (46, 48) comprises: - an engagement element (50, 52) which is elastically supported for anchoring in the undercut (24, 26) in a connector width direction (B), wherein the connector width direction (B) is perpendicular to a connector depth direction (T) and perpendicular to a connector length direction (L), and wherein the connector depth direction (T) and the connector length direction (L) are perpendicular to each other, and - a coupling element (64, 66, 68, 120) for insertion into a mating connector (48, 46), wherein the coupling element (64, 66, 68, 120) and the engagement element (50, 52) are materially connected.

2. Connector (46, 48) according to claim 1, wherein the coupling element (64, 66, 68, 120) and the engagement element (50, 52) are connected via a retaining arm (70, 72, 74, 76, 78, 80, 122, 124), wherein the retaining arm (70, 72, 74, 76, 78, 80, 122, 124) is elastically compliant in the connector width direction (B) and in a connector length direction (L).

3. Connector (46, 48) according to claim 2, wherein the coupling element (64, 66, 68, 120) comprises a lateral projection at an end of the retaining arm (70, 72, 74, 76, 78, 80, 122, 124) opposite the engagement element (50, 52).

4. Connector (46, 48) according to claim 1, wherein the coupling element (64, 66, 68, 120) and the engagement element (50, 52) are connected via a retaining plate (114, 116) which is elastically flexible in the connector width direction (B).

5. Connector (46, 48) according to claim 4, wherein the coupling element (640 66, 68, 120) is designed as a projection on the retaining plate (114, 116).

6. Connector (46, 48) according to one of claims 2 to 5, further comprising a receiving space (106) for a coupling element (64, 66, 68, 120) of the mating connector (48, 46), wherein the receiving space (106) adjoins the retaining plate (114, 116) or the retaining arm (70, 72, 74, 76, 78, 80, 122, 124), such that elastic yielding of the retaining plate (114, 116) or elastic yielding of the retaining arm (70, 72, 74, 76, 78, 80, 122, 124) in the connector width direction (B) can be blocked by means of the coupling element (64, 66, 68, 120) of the mating connector (48, 46). is.

7. Connector (46, 48) according to one of the preceding claims, further comprising a further engagement element (50, 52) which is elastically compliant for anchoring in a further undercut (24, 26) of the first coupling groove (14) in a connector width direction (B), wherein the engagement element (50, 52) and the further engagement element (50, 52) are arranged along the connector width direction (B) at opposite ends of the connector (46, 48).

8. Connector (46, 48) according to claim 7, wherein the engagement element (50, 52) and the further engagement element (50, 52) are mirror-symmetric with respect to a connector median plane (M), wherein the connector width direction (B) is perpendicular to the connector median plane (M).

9. Connectors (46, 48) according to claim 7 or 8, wherein a clearance of movement (54) is provided along the connector width direction (B) between the engagement element (50, 52) and the further engagement element (50, 52) to allow elastic compliance in the connector width direction (B).

10. Connectors (46, 48) according to claim 9 and claim 6, wherein at least one section of the movement space (54) forms at least one section of the receiving space (106).

11. Connector (46, 48) according to one of claims 7 to 10 and claim 2, wherein the coupling element (64, 66, 68, 120) and the further engagement element (50, 52) are connected via a further retaining arm (70, 72, 74, 76, 78, 80, 122, 124), wherein the further The retaining arm (70, 72, 74, 76, 78, 80, 122, 124) is elastically flexible in the connector width direction (B) and in the connector length direction (L).

12. Connector (46, 48) according to one of claims 7 to 10 and claim 4, wherein the further engagement element (50, 52) is arranged on a further retaining plate (114, 116) which is elastically compliant in the connector width direction (B).

13. Connector (46, 48) according to claim 12, wherein the retaining plate (114) and the further retaining plate (116) are designed as opposite sections of an annular retaining element (118).

14. Connector (46, 48) according to one of the preceding claims, wherein the coupling element (64, 66, 68, 120) has an undercut acting along the connector depth direction (T).

15. Connector (46, 48) according to one of the preceding claims, wherein the coupling element (64, 66, 68, 120) has a first coupling surface (82, 90, 98, 100) with a first surface normal, wherein the first surface normal has an extent component in the connector depth direction (T) and an extent component in the connector length direction (L).

16. Connector (46, 48) according to claim 15, wherein the coupling element (64) has a second coupling surface (82, 90, 98, 100) with a second surface normal, wherein the second surface normal has an extent component in the connector depth direction (T) and an extent component in the connector length direction (L), wherein the first surface normal and the second surface normal are oriented in the same direction with respect to the connector depth direction (T) and wherein the first surface normal and the second surface normal are oriented in opposite directions with respect to the connector length direction (L).

17. Connector (46, 48) according to one of the preceding claims, further comprising a further coupling element (64, 66, 68, 120) for insertion into a mating connector (48, 46).

18. Connector (46, 48) according to claim 17, wherein the coupling element (64, 66, 68, 120) and the further coupling element (64, 66, 68, 120) are mirror-symmetric with respect to a connector transverse plane (Q), wherein the connector longitudinal direction (L) is perpendicular to the connector transverse plane (Q).

19. Connector (46, 48) according to one of the preceding claims, wherein the connector (46, 48) is manufactured in one piece.

20. Connector assembly (44) for mechanically fastening a first component (12) to a second component (28), comprising a first connector (46, 48) according to one of the preceding claims and a second connector (46, 48) according to one of the preceding claims, wherein the coupling element (64, 66, 68, 120) of the first connector (46, 48) is inserted into the second connector (46, 48) and the coupling element (64, 66, 68, 120) of the second connector (46, 48) is inserted into the first connector (46, 48) such that the first connector (46, 48) and the second connector (46, 48) are coupled and such that the connector depth direction (T) of the first connector (46, 48) and the connector depth direction (T) of the second connector (46, 48) coincide.

21. Connector assembly (44) according to claim 20, wherein the coupling element (64, 66, 68, 120) of the first connector (46, 48) blocks elastic yielding of the engagement element (50, 52) of the second connector (46, 48) and / or wherein the coupling element (64, 66, 68, 120) of the second connector (46, 48) blocks elastic yielding of the engagement element (50, 52) of the first connector (46, 48).

22. Connector assembly (44) according to claim 20 or 21, wherein the first connector (46, 48) and the second connector (46, 48) are identical parts.

23. Component arrangement comprising a component (12, 28) with a coupling groove (14, 30) which has at least one undercut (24, 26, 40, 42) acting along a groove depth direction (20, 36), and a connector (46, 48) according to one of claims 1 to 19, wherein the engagement element (50, 52) is anchored in the undercut (24, 26, 40, 42).

24. Component connection (10), comprising a first component (12) with a first coupling groove (14) whose groove opening (18) lies in a contact surface (16) of the first component (12) and which has at least one undercut (24, 26) acting along a groove depth direction (20), a second component (28) with a second coupling groove (30) whose groove opening (34) lies in a contact surface (32) of the second component (28) and which has at least one undercut (40, 42) acting along a groove depth direction (36), and a connector assembly (44) according to any one of claims 16 to 18, wherein the engagement element (50, 52) of the first connector (46, 48) is anchored in the undercut (24, 26) of the first component (12), wherein the engagement element (50, 52) of the second connector (46, 48) is anchored in the undercut (40, 42) of the second component (28), and wherein the contact surface (16) of the first component (12) and the contact surface (32) of the second component (28) are in contact with each other.

25. Method for coupling a first component (12) and a second component (28), wherein the first component (12) has a first coupling groove (14) whose groove opening (18) lies in a contact surface (16) of the first component (12) and which has at least one undercut (24, 26) acting along a groove depth direction (20), and wherein the second component (28) has a second coupling groove (30) whose groove opening (34) lies in a contact surface (32) of the second component (28) and which has at least one undercut (40, 42) acting along a groove depth direction (36), comprising - Inserting a first connector (46, 48) into the first coupling groove (14) along a groove depth direction (20) of the first coupling groove (14) and anchoring the first connector (46, 48) in the undercut (24, 26) of the first coupling groove (12), - Inserting a second connector (46, 48) into the second coupling groove (30) along a groove depth direction (36) of the second coupling groove (30) and Anchoring the second connector (46, 48) in the undercut (40, 42) of the second coupling groove (30), and - Inserting the first connector (46, 48) and the second connector (46, 48) into each other, thereby coupling the first connector (46, 48) and the second connector (46, 48).

26. Method according to claim 25, wherein the insertion of the first connector (46, 48) and the second connector (46, 48) into each other takes place along an insertion path and wherein a joining force is substantially constant along at least 50% of the insertion path.

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