DE102010045104B4 - Coupling for a load carrier system - Google Patents

Abstract

Coupling for a load carrier system for a motor vehicle (200), with a vehicle bracket (13a-13h) for attachment to a rear (201) of the motor vehicle (200) and with one for attachment to the vehicle bracket (13a-13h) ) provided fastening arm (51a-51h) of a load carrier (50a-50h) which has a support area for carrying a load from which the fastening arm (51a-51h) protrudes for fastening to the vehicle bracket (13a-13h), and with Fixing means (23a-23h) with which the fastening arm (51a-51h) and the vehicle bracket (13a-13h) can be fixed to one another, the at least one vehicle bracket (13a-13h) and the at least one fastening arm (51a -51h) Plug-in means are provided for plugging the at least one fastening arm (51a-51h) onto the at least one vehicle mount (13a-13h) along a plug-in axis (20), the plug-in means being a plug-in receptacle (17a-17h) and a plug-in projection ( 63a-63h), characterized in In Inside the plug-in receptacle (17a-17h) or the plug-in projection (63a-63h) there is a holding forceps (140) which has holding contours (151), and in the other component, the plug-in projection (63a-63h) or the plug-in socket (17a-17h) ), Counter-holding contours (153) are arranged for engagement with the holding contours (151), the tong parts (141) of the holding tong (140) being pivotable relative to one another by means of a pivot bearing (142) and being moved into a blocking position (B) by a spring (148) are acted upon so that the holding contours (151) snap into the counter holding contours (153) when the plug-in projection (63a-63h) is inserted into the plug-in receptacle (17a-17h).

Description

The invention relates to a coupling for a load carrier system for a motor vehicle according to the preamble of claim 1.

Such a coupling for a load carrier system is, for example, off DE 44 03 715 A1 known. Installation is possible by simply plugging the load carrier onto the vehicle bracket, with a plug-in receptacle on one part and a plug-in projection on the other part. The known coupling has a lock with a double-armed lever.

the end DE 31 02 736 A1 an arrangement is known with a vehicle body having a roof and a railing for a roof rack that is fixedly mounted on the roof, whereby a fastening with a lever is provided.

The possibilities are limited, however, since the bracing can only act in principle in the direction of the quick-release axle.

It is therefore the object of the present invention to provide a coupling for a load carrier which has improved fixing means.

To achieve the object, a coupling according to the technical teaching of claim 1 is provided.

Plug means for plugging the at least one fastening arm onto the at least one vehicle holder along a plug axis are provided on the at least one vehicle holder and the at least one fastening arm, the plug means comprising a plug receptacle and a plug projection. Thus, for example, a free end of the fastening arm can form a plug-in projection, and the vehicle holder can form or have a plug-in receptacle. Conversely, however, it is conceivable that there is a plug-in receptacle on the fastening arm, which is plugged onto a corresponding plug-in projection on the vehicle bracket.

At this point it should be noted that, of course, an anti-twist installation is useful, that is, rotation-blocking means or form-locking contours are provided on the vehicle bracket and on the fastening arm, with which the load carrier can be mounted on the vehicle carrier in a non-rotatable manner. These rotary fixing means can form components of the aforementioned fixing means.

It is preferably provided that the at least one vehicle bracket is arranged on the vehicle carrier arranged or can be arranged on the motor vehicle in such a way that, when the vehicle carrier is arranged on the motor vehicle, it is in the area of a transverse center of the motor vehicle behind a license plate and / or behind a bumper of the motor vehicle is arranged.

In the case of both components, the vehicle holder and the fastening arm, it is useful if they are at a relatively large distance from a surface, for example the roadway, when they are mounted on the motor vehicle. For example, the load carrier is designed in such a way that it has one or more cross-centered fastening arms on which the support area, for example a support platform, a support frame or the like, is then arranged.

A preferred embodiment of the invention provides that the load carrier have only a single fastening arm and the vehicle carrier only have a single vehicle mount. In principle, it would also be conceivable that, for example, two or more fastening arms arranged relatively narrowly next to one another are provided.

Electrical vehicle contacts and electrical load carrier contacts for establishing an electrical connection between the motor vehicle and the load carrier are expediently provided on the vehicle holder and the fastening arm. This has great advantages in particular when there is only a single fastening arm. By plugging in or tying the one fastening arm to the one vehicle bracket, not only is the mechanically load-bearing connection between the motor vehicle and the load carrier established, but also an electrical connection at the same time. A bus connection, for example, is possible via the aforementioned electrical connection. Thus, for example, electrical power consumers, e.g. rear lights, can preferably also be supplied on the load carrier from the on-board network of the motor vehicle.

A protected arrangement of the vehicle contacts and load carrier contacts provides that they are arranged in an interior space of the vehicle bracket and the fastening arm, so that they are encased when the fastening arm is fastened to the vehicle bracket. The vehicle holder and / or the fastening arm thus form, for example, a protective housing for the load carrier contacts or the vehicle contacts when the system is in use.

A coupling arm mount or a coupling arm bearing for a coupling arm of a trailer coupling is expediently arranged on the vehicle carrier. With the bearing, the coupling arm can, for example be pivotably and / or slidably mounted. The vehicle carrier thus has a double function: it carries the load carrier and also the coupling arm holder, thus possibly the coupling arm if a trailer coupling is required.

The vehicle carrier is formed, for example, by a cross member or comprises one which can be fastened to the body of the motor vehicle.

The coupling, in particular the plug-in receptacle and / or the plug-in projection, comprise, for example, a latching member and / or a securing member with which one coupling component can be latched or secured on the other coupling component. A type of pre-latching is preferred, which tensioning means are provided in addition to the latching member or securing member. The latching member or securing member ensures that the plug-in projection is held on the plug-in receptacle, for example in order to then undertake a bracing, for example with the aforementioned tie rods or other securing measures. The securing member forms an additional measure that is not necessary, but advantageous. Even if the tension fails, the securing link is still effective, so that the load carrier is not lost in any case.

Of course, the locking member or securing member can also be formed by the collet chuck according to the invention or it can be formed by holding tongs. In addition to these holding tongs, the aforementioned latching member or securing member can of course be provided.

The latching member and / or the securing member comprise, for example, a spring element which has a stop section which is provided for latching or securing and which runs in the plug-in receptacle, for example tangentially. In addition, the spring element, which is expediently rod-shaped in the area of the stop section, has an actuating section which protrudes laterally in front of the plug-in receptacle for actuating the spring element in the sense of unlocking or unlocking. The spring element can thus be deflected so that the latching engagement or securing engagement of the stop section is lifted out. The stop section preferably engages in a form-fitting manner in the plug-in projection or a latching receptacle or securing receptacle arranged there.

The plug-in receptacle and the plug-in projection expediently run approximately horizontally in normal use. The plug-in axle thus also advantageously has a horizontal profile. In this embodiment, the operator does not have to operate the load carrier from top to bottom or at an angle in order to establish the connection to the motor vehicle or the vehicle holder, but can instead guide the load carrier horizontally. This is particularly convenient. However, it should be noted that with regard to the aforementioned latching concept, securing concept or also the clamping means, an inclined or vertical plug-in axis is of course also conceivable.

According to the invention, holding tongs are arranged in the interior of the plug-in receptacle or the plug-in projection. The holding forceps has holding contours, for example holding projections or holding recesses. In the other component, i.e. the plug-in projection or the plug-in receptacle, matching counter-holding contours are provided, e.g. holding receptacles or holding projections, which are provided for engagement with the holding contours. The tongs have tong parts which can be pivoted relative to one another by means of a pivot bearing, but are urged into a blocking position by a spring. For example, the spring is supported on mutually facing inner sides of the holding tongs or the tong parts. The spring has the effect that when the plug-in projection is inserted into the plug-in receptacle, the holding contours are loaded into the counter-holding contours, appropriately locking into place. The holding forceps has an optimal force curve, since it is expediently effective on both sides, that is to say has holding contours on opposite sides. The actuation is also very simple, since appropriate actuation surfaces or handle surfaces are expediently provided on opposite sides of the pliers parts.

At least one actuating recess is expediently provided on the component receiving the holding tongs, for example the plug-in receptacle or the plug-in projection, into which an associated actuating arm of the holding tong engages at least in the blocking position. An operator can therefore actuate the actuating arms in the direction of a release position by pressing against the spring force of the spring acting in the blocking position. For example, he presses the respective actuating arm into the actuating recess. For example, there are actuating recesses on opposite side walls of the component forming the plug-in receptacle or the plug-in projection.

At this point it should be noted that the plug-in receptacle and / or the plug-in projection expediently have a tubular shape.

The holding tongs are preferably arranged so as to be immovable with respect to the plug-in axis in the component receiving them, that is to say the plug-in receptacle or the plug-in projection. this will for example caused by the fact that the actuating arm is held immovably in the actuating recess. However, it is also possible that, for example, a bearing axis of the pivot bearing, which supports the pliers parts in a pivotable manner, engages in a corresponding holding receptacle on the component receiving the holding pliers in order to realize the immovability.

At least one of the holding contours expediently has a clamping contour for bracing the plug-in projection with the plug-in receptacle. It is thus possible, with the holding pliers, not only to latch or hold the plug-in projection and plug-in receptacle to one another in a comparatively loose manner, but also to tighten them. The clamping contour has, for example, a corresponding incline.

The plug-in receptacle expediently has a cross-sectional inner contour that matches a cross-sectional outer contour of the plug-in projection, the outer contour or the inner contour having a supporting projection protruding transversely to the plug-in axis, for example an outer corner, a groove or the like, for engaging in a support receptacle extending transversely to the plug-in axis , in particular has an inner corner, the inner contour or the outer contour. The support projection and the support receptacle are expediently angular, that is to say they have side walls which are angled to one another. The piece receptacle supports the support projection or the support projection expediently supports the piece receptacle in the vertical direction. Thus, the respective component is supported with its projection, for example in the receptacle. When using the load carrier system, for example, a floor of the receptacle is closer to a surface than the opening side of the receptacle.

For example, the inner contour is diamond-shaped or square. The same applies expediently to the outer contour.

The supporting projection and the supporting receptacle expediently form lower, supporting corner areas of a triangle or square. Thus, the plug-in projection is virtually on a corner.

The mounting of the plug-in projection in the plug-in receptacle on the support projection or the support receptacle in the vertical direction has the advantage that optimum support is possible, in particular in the vertical direction. Forces acting in the transverse direction of the vehicle are comparatively small, so that there is little or no play between the components, particularly in the vertical direction.

This has advantages, for example, in relation to various clamping concepts, including the previously explained clamping concept by means of a clamping anchor running at an angle to the plug-in axis. It should be added to this that it expediently runs from top to bottom, that is, at an angle to the horizontal. Furthermore, it is advantageous if the tensioning anchor extends in a vertical plane penetrated by the longitudinal axis of the vehicle or parallel to it.

The at least one vehicle mount and the at least one fastening arm expediently have mutually matching dovetail contours or triangular contours. The previously presented concept of a "vertical mounting" of the support projection and support receptacle can also be implemented with this.

The plug-in axis expediently runs transversely to a longitudinal extension direction of the at least one fastening arm, in particular when the aforementioned dovetail contours or triangular contours are present.

Another fastening concept, which is useful with the above and following embodiments, but can also be combined with other embodiments that are not explained in detail in the application, provides that the fixing means expediently comprise a sleeve that is attached to the at least one vehicle -Holder or the at least one fastening arm is movably mounted, for example rotatable and / or displaceable. The sleeve protrudes from a free end of the vehicle bracket or the fastening arm and has form-fitting contours on its inner circumference, which can be brought into engagement with counter-form-fitting contours on an outer circumference of the other component, the fastening arm or the at least one vehicle bracket . Regarding the sleeve, it should be noted that it can expediently have a ring-like shape, but also a partially ring-like one.

The form-fit contours and the mating form-fit contours include, for example, a thread. However, it is also possible that, for example, bayonet projections and bayonet mountings that match these are present.

The load carrier system preferably comprises a license plate carrier for carrying the license plate, the license plate carrier and / or the license plate concealing, e.g. closing, the at least one vehicle holder in a covering position and the at least one vehicle holder in a release position for mounting the load carrier, for example the at least one mounting arm, release.

The license plate carrier comprises, for example, a carrier bearing with which the license plate carrier can be adjusted between the cover position and the release position.

Several embodiments are possible with this camp. One example can provide that the carrier bearing comprises a pivot bearing with which the license plate carrier and thus also the license plate can be pivoted away from or towards the vehicle holder. For example, you can almost fold the license plate down (or up) so that the vehicle holder is free, e.g. for attaching the load carrier.

Of course, it is advantageous if the license plate carrier is not only the vehicle bracket, but also, for example, other connecting elements, in particular the aforementioned bracket for a trailer coupling or the bearing for a coupling arm and / or an electrical socket or other plug-in connection means for establishing an electrical connection cover with the load carrier.

It is also conceivable that the carrier bearing comprises a sliding bearing.

A preferred embodiment provides that the carrier bearing comprises a multi-joint, in particular a four-joint. As a result, complex pivoting and sliding movements of the carrier bearing are also possible.

An embodiment is preferred in which the license plate carrier has a lock with which it can be locked on the motor vehicle, the vehicle carrier or the load carrier. The license plate carrier can therefore also be used to close the vehicle holder. This is used to protect against vandalism and / or theft.

The license plate carrier is expediently positioned in the release position in such a way that it holds the license plate approximately vertically to the side next to the at least one fastening arm.

For example, the label is then arranged above or below the fastening arm. This means that the license plate can also be read, for example, from a longitudinal side of the vehicle, for example during vehicle inspections.

It is also advantageous if the license plate carrier comprises a seal or a plurality of seals for sealing the at least one vehicle mount, a contact carrier for making electrical contacts or the like. Thus, the vehicle holder or the contact carrier is protected when not in use.

In the previous embodiments, it was assumed that the license plate carrier remains in the vicinity of the vehicle holder. However, it is also possible to design the license plate carrier, so to speak, as an entrainment holder for the license plate, in particular in combination with the previously explained lock. In this embodiment, the license plate carrier expediently has license plate fastening means that match the at least one vehicle holder, so that the license plate carrier can be releasably fastened to the at least one vehicle holder. Thus, the license plate carrier can then be easily removed when the vehicle holder is used.

It is preferably provided that load carrier fastening means that match the license plate carrier are present on a rear, free area of the load carrier, so that the license plate carrier can optionally be releasably fastened to the at least one vehicle bracket or the load carrier fastening means. The load carrier fastening means comprise, for example, a plug-in receptacle into which a plug-in projection can be inserted which, for example, has the same contour as the fastening arm of the load carrier which is to be inserted into the same plug receptacle.

For example, the license plate carrier fasteners or the load carrier fasteners (which are provided for the license plate carrier) comprise a plug-in receptacle and / or a plug-in projection or also a lock,

The license plate carrier expediently has latching means, magnetic holding means, a bolt or the like, with which a firm hold or locking in the covering position and / or the release position is possible. It should be noted that even in the release position, for example when the license plate holder is pivoted away from the vehicle holder, locking, a neck with magnetic holding means or latching means is useful so that nothing rattles when driving.

• 1 ein erstes Ausführungsbeispiel eines Lastenträger-Systems, bei dem der Lastenträger noch vom Kraftfahrzeug entfernt ist, wobei der Lastenträger in
• 2 am Kraftfahrzeug montiert ist,
• 3 ein Detail Z aus 2,
• 4 ein Lastenträger-System mit einem noch von der Fahrzeug-Halterung entfernten Lastenträger
• 5 eine perspektivische Seiten-Schrägansicht der Fahrzeug-Halterung und des Lastenträgers im aneinander montierten Zustand,
• 6 eine Seitenansicht der in 5 dargestellten Verbindung,
• 7 eine Ansicht eines Lastenträgers etwa vom Kraftfahrzeug her gesehen, wobei am Befestigungsarm des Lastenträgers elektrische Kontakte angeordnet sind, die in eine in
• 8 dargestellte Fahrzeug-Halterung mit ebenfalls elektrischen Kontakten einsteckbar ist,
• 9 eine Fahrzeug-Halterung eines dritten erfindungsgemäßen Lastenträger-Systems quasi vom Kraftfahrzeug innen nach hinten gesehen, so dass eine zusätzlich vorhandene Halterung für einen Kupplungsarm einer Anhängekupplung sichtbar ist,
• 10 eine Variante des Ausführungsbeispiels gemäß 9, jedoch mit einer vertikal verlaufenden Aufnahmehülse für eine Kugelstange einer Anhängekupplung,
• 11 das Lastenträger-System ähnlich wie in 9, 10, jedoch ohne Anhängekupplung und mit einem Lastenträger, der noch von der Fahrzeug-Halterung entfernt ist,
• 12a den Lastenträger gemäß 11 schräg vom Fahrzeug her gesehen mit der Fahrzeug-Halterung, die im noch nicht montierten Zustand dargestellt ist, wobei der montierte Zustand in 12b sichtbar ist,
• 13 ein viertes Ausführungsbeispiel eines Lastenträgers-Systems, bei dem der Lastenträger durch eine Verbindung mit einer Überwurfmutter an der Fahrzeug-Halterung befestigt ist,
• 14 eine Detailansicht des Systems gemäß 13 schräg vom Fahrzeug her gesehen, wobei die Fahrzeug-Halterung und der Befestigungsarm des Lastenträgers entfernt sind,
• 15 eine Seitenansicht der Verbindung zwischen Lastenträger und Fahrzeug-Halterung, wobei innenliegende Komponenten gestrichelt dargestellt sind,
• 16 ein fünftes Ausführungsbeispiel eines erfindungsgemäßen Lastenträger-Systems mit einer schwalbenschwanzartigen Verbindung zwischen Fahrzeug-Halterung und Lastenträger, im voneinander entfernten Zustand,
• 17 das Lastenträger-System gemäß 16, jedoch im miteinander verbundenen Zustand von Lastenträger und Fahrzeug-Halterung,
• 18 einen Detailansicht der Fahrzeug-Halterung und des Lastenträgers gemäß 16, 17 im voneinander entfernten Zustand,
• 19 ein Lastenträger-System mit einer Exzenter-Verspannung,
• 20 ein siebtes Ausführungsbeispiel eines Lastenträger-Systems mit einer Kupplung zwischen Fahrzeug-Halter und Lastenträger, die mit einem Hebel bedienbar ist,
• 21 eine Detailansicht des Systems gemäß 20, jedoch im voneinander entfernten Zustand von Fahrzeug-Halterung und Lastenträger,
• 22a ein Ausführungsbeispiel eines Lastenträger-Systems gemäß der Erfindung, wobei der Lastenträger noch vom Fahrzeug entfernt ist,
• 22b die Ansicht ähnlich gemäß 22a, jedoch mit am Kraftfahrzeug montierten Lastenträger,
• 23 eine Halte- oder Verriegelungszange einer Verbindungseinrichtung des Systems gemäß 22a, 22b,
• 24 einen Befestigungsarm des Lastenträgers, der von der Fahrzeug-Halterung entfernt ist,
• 25 die Komponenten gemäß 24, jedoch im miteinander verbundenen Zustand,
• 26 eine perspektivische Schrägansicht eines schwenkbaren Kennzeichen-Trägers,
• 27 eine perspektivische Schrägansicht eines Kennzeichen-Trägers mit einem Vielgelenk-Schwenklager,
• 28 einen Kennzeichen-Träger mit einem Schiebelager, und
• 29 einen Kennzeichen-Träger, der mit einem Schloss verschließbar ist.

Exemplary embodiments are explained below with reference to the drawing, with the 1-21 and FIGS. 26-29 do not represent exemplary embodiments of the invention. Show it:

• 1 a first embodiment of a load carrier system in which the load carrier is still removed from the motor vehicle, the load carrier in
• 2 is mounted on the vehicle,
• 3 a detail Z from 2 ,
• 4th a load carrier system with a load carrier still removed from the vehicle bracket
• 5 a perspective side oblique view of the vehicle bracket and the load carrier in the assembled state,
• 6th a side view of the in 5 connection shown,
• 7th a view of a load carrier seen approximately from the motor vehicle, wherein electrical contacts are arranged on the mounting arm of the load carrier, which in a in
• 8th The vehicle bracket shown can also be plugged in with electrical contacts,
• 9 a vehicle mount of a third load carrier system according to the invention, as it were seen from the inside to the rear of the vehicle, so that an additional mount for a coupling arm of a trailer hitch is visible,
• 10 a variant of the embodiment according to 9 , but with a vertically running receiving sleeve for a ball rod of a trailer coupling,
• 11 the load carrier system similar to in 9 , 10 , but without a trailer coupling and with a load carrier that is still removed from the vehicle bracket,
• 12a the load carrier according to 11 Seen obliquely from the vehicle with the vehicle bracket, which is shown in the not yet assembled state, the assembled state in 12b is visible
• 13th a fourth embodiment of a load carrier system in which the load carrier is attached to the vehicle bracket by a connection with a union nut,
• 14th a detailed view of the system according to 13th seen obliquely from the vehicle, with the vehicle bracket and the mounting arm of the load carrier removed,
• 15th a side view of the connection between the load carrier and the vehicle bracket, with internal components being shown in dashed lines,
• 16 a fifth embodiment of a load carrier system according to the invention with a dovetail-like connection between the vehicle bracket and load carrier, in the distant state,
• 17th the load carrier system according to 16 , but with the load carrier and vehicle bracket connected to one another,
• 18th a detailed view of the vehicle bracket and the load carrier according to 16 , 17th in a distant state,
• 19th a load carrier system with an eccentric bracing,
• 20th a seventh embodiment of a load carrier system with a coupling between vehicle holder and load carrier, which can be operated with a lever,
• 21 a detailed view of the system according to 20th , but with the vehicle bracket and load carrier apart,
• 22a an embodiment of a load carrier system according to the invention, wherein the load carrier is still removed from the vehicle,
• 22b the view is similar according to 22a , but with the load carrier mounted on the vehicle,
• 23 a holding or locking forceps of a connecting device of the system according to 22a , 22b ,
• 24 a mounting arm of the load carrier that is removed from the vehicle bracket,
• 25th the components according to 24 , but in the interconnected state,
• 26th a perspective oblique view of a pivotable license plate carrier,
• 27 a perspective oblique view of a license plate carrier with a multi-joint pivot bearing,
• 28 a license plate carrier with a sliding bearing, and
• 29 a license plate holder that can be locked with a lock.

With the load carrier systems shown in the drawing 10a 10h shows numerous innovations that can be implemented individually or in combination with one another. To clarify differences, the same or similar components have the same reference number, but to clarify differences with a, b, c, d, e, f, g and h in the individual load carrier systems 10a - 10h Marked are.

The load carrier system 10a - 10h includes a vehicle mount 13a - 13h attached to a vehicle carrier 11 for fastening to a body of a motor vehicle 200 are connected, for example screwed, welded or also formed in one piece. The vehicle carrier 11 is for example a cross tube or something else Cross member behind the rear end of the body of the motor vehicle 200 runs and for example by means of lateral connecting parts 12th , for example tabs, sword-like projections or the like, with the body of the motor vehicle, not shown in detail 200 connected is. In any case, there is the vehicle carrier 11 at the stern 201 of the motor vehicle 200 and is conveniently behind a bumper 202 of the motor vehicle 200 hidden. The vehicle carrier 11 can, for example, in the event of a rear impact on the motor vehicle 200 Intercept forces and thus the effect of the bumper 202 support.

The bumper 202 is only partially shown in some figures. The bumper 202 Expediently conceals the vehicle carrier 11 Completely. However, it is possible, as will become even clearer below, the load carrier 50a - 50h from the horizontal behind on the vehicle bracket 13a - 13h to fix. All you need is a mounting arm 51a- 51h on the vehicle bracket 13a - 13h be attached, it is expedient that in each of the load carrier systems 50a- 50h only a single combination of vehicle bracket and mounting arm has to be connected to one another, ie each of the load carriers 50a - 50h only a single mounting arm 51a - has 51h. It should be noted here that, in principle, several fastening arms, particularly those located close to one another, and associated vehicle mounts would be possible, for example in order to distribute the supporting and carrying forces.

The porter 50a - 50h is to be understood in the illustrated embodiment only as an example. For example, he has a basic carrier 52 which has a U-shaped shape. From a cross member 53 there are two side members 54 angled, for example at right angles. From the cross member 53 the mounting arm is still standing 51a - 51h from, but to the side members 54 opposite.

The mounting arm 51h is for example with the base support 52 welded, screwed or can also be in one piece with this. The mounting arm 51a - 51h is advantageous in the area of a transverse center of the load carrier 50a - 50h arranged. For example, there is the mounting arm 51a - 51h roughly in the longitudinal center of the cross member 53 . It should be noted that asymmetrical constructions are of course also conceivable. Furthermore, it is not necessary that the side rails 54 and the mounting arm 51a - 51h are parallel to each other. For example, the longitudinal beams 54 could run in a V-shape. Furthermore, it is also possible for the at least one fastening arm and a support surface of the load carrier, in particular its support frame or base frame, to run at the same horizontal height. In 2 is for example a level 55 indicated, in which this becomes clear. For example, the actual bearing surface of the load carrier, which is provided for placing a load, can be further away from a ground, for example a roadway, than the respective fastening arm, or less far, ie more close to the ground, which is not shown, however. In both cases, this condition applies when the load carrier is mounted on the motor vehicle.

There is a load attachment on the base carrier 56 with a cross member 57 as well as side members 58 arranged, which also have a total of a U, but in the opposite direction to the frame or "U" of the base support 52 is oriented. From the cross member 57 there are lights on the side 59 away. The lights 59 can be pivotable so that they can, for example, be attached to the side members 58 can be pivoted towards when the load carrier 50a - 50h is not needed. On the load attachment 56 Support components and support components can be arranged that support or carry a load to be transported. A column is an example 61 shown by the side members 58 angled, for example at right angles, if it is needed. The support 61 , for example a U-bracket, can be attached to the side members 58 can expediently be swiveled towards (when not in use). Furthermore, there are support elements 60 , for example gutters, support platforms or the like on the load attachment 56 arranged, for example, pivotable on the side members 58 .

The basic carrier 52 or load attachment 56 provide a support area for carrying a load.

Another convenience feature, not shown in detail, is that the load attachment 56 regarding the basic carrier 52 is movably mounted, for example pivotably so that it is in an in 1 indicated loading position 62 from the stern 201 of the motor vehicle 200 can be pivoted away. However, a particularly telescopic sliding movement is also possible, for example in that the longitudinal members 58 on the side members 54 are slidably mounted. The (lower) side members 54 support the (upper) side members 58 off, ie the side members 58 are at least when driving the motor vehicle 200 or the carrier 50a - 50h on the side members 54 on. It is understood that the above embodiment of the load carrier 50a - 50h are only to be understood as examples, so that, for example, bicycles, a transport box, skis or other objects, surfboards or the like can be placed on the load carrier 50a - 50h are transportable.

The following fastening concepts for the load carrier are described in detail 50a - 50h on the motor vehicle 200 , ie on the vehicle brackets 13a - 13h are also easy to handle with a simple structure, so that it is entirely conceivable on the motor vehicle 200 differently developed, ie to use different load carriers intended to carry a wide variety of loads. In any case, the application is aesthetically very appealing because it is on the motor vehicle 10 with the load carrier removed 50a - 50h sees no disruptive components that impair the vehicle's appearance. The vehicle mounts 13a - 13h are behind the bumper 202 roughly in the area of a transverse center 203 of the motor vehicle 200 arranged so that not only a central, a uniform load on a basic structure of the motor vehicle 10 Representative connection or support of a load carrier on a motor vehicle is guaranteed, but also an optically optimized connection.

In the transverse center area 203 has the bumper 202 a recess or a cutout 204 for attaching a license plate 206 is provided. In the area of the recess or the cutout 204 there is a section 205 or a cutout arrangement, since namely several, in particular smaller cutouts can be provided, for example for the vehicle mount 13a - 13e , possibly also for other components, for example electrical contacts 14th , for example a socket and / or a coupling arm holder 15th ( 10 ).

The electrical contacts 14th as well as the coupling arm mount 15th are expediently on the vehicle carrier 11 attached, for example screwed or welded, so that this as a whole, ie including the vehicle bracket 13a - 13h as a module on the pre-assembled motor vehicle 200 can be attached. The coupling arm mount 15th includes as well as a coupling arm mount 16 ( 9 ) For example, a plug-in sleeve into which a plug-in end of a coupling arm 207 , 208 is pluggable. While the plug-in socket of the coupling arm socket 15th runs essentially horizontally, the plug-in receptacle is the coupling arm receptacle 16 oriented essentially vertically, ie it is open, for example, towards the bottom, towards the road surface or towards the ground. The plug end of the coupling arm 208 is for example through an opening 209 on a lower, substantially horizontally extending section of the bumper 202 put through. With the arrangement according to 9 is therefore also an opening 209 or a cutout on the bumper is required, in particular with this being extended downward in the direction of travel in the manner of an apron. The in 10 The concept shown, however, is the coupling arm mount 15th virtually behind the license plate 206 hidden if this the clipping 205 or the cutout arrangement is covered.

At this point, a difference should be noted, namely that different fastening and fixing systems, but also different electrical connection concepts, are advantageous for fixing coupling arms and load carriers according to the invention, that is, as in the exemplary embodiment, separate, for receiving or pivoting Storage of coupling arms provides brackets or bearings, while specially suitable vehicle brackets or fixing means are provided for the load carriers, so that systems that are optimally designed for the respective conditions, for example load capacity or manageability, are possible.

It is also advantageous if the coupling arm receptacles 15th and 16 slightly outside the transverse center 203 are arranged. The coupling arms 207 , 208 have adapted courses or geometries in the area of their ball rods so that the coupling ball is at the coupling arm mount 15th , 16 mounted coupling arm 207 , 208 roughly in the area of the transverse center 203 of the motor vehicle 200 is located. The coupling ball is then quasi transversely in the middle directly behind the vehicle bracket 13a - 13h arranged.

An alternative concept can of course also provide that one and the same fastening means are used for a coupling arm and for a load carrier, for example in the configuration which will be explained in detail below.

The license plate 206 is on a license plate holder 210 attached. The license plate holder 210 includes, for example, a plate, a support frame or the like, as well as expediently a holder or holding elements, not shown in detail, for the license plate 206 . For example, there are frame-like or plug-like holding means with which the identifier 206 on the license plate holder 210 is attachable. But it is also possible that the license plate 206 on the license plate holder 210 , for example the carrier plate 211 or a frame, is screwed.

The carrier plate 211 , thus the license plate holder 210 , is by means of a carrier bearing 212 pivotable between a release position F for mounting the load carrier 50a - 50h the vehicle holder 13a - 13h releases, and a cover position A adjustable, in which he the vehicle bracket 13a - 13h covered. The porter camp 212 is for example a pivot bearing so that the license plate carrier 210 and / or that Mark 206 are pivotable between an essentially vertical position (covering position A) and an angled thereto, for example horizontal position (release position F). In the exemplary embodiment, the license plate carrier pivots 210 into the release position F downwards, so that the fastening arm 51a - 51h above the license plate holder 210 is mountable. However, it can also be swiveled upwards.

For a secure hold of the license plate holder 210 can also latch means, for example 214 be provided, for example, a locking projection on the license plate carrier 210 include, in a corresponding locking receptacle on the bumper 202 clicks into place.

At the porter camp 212 could also be a spring, for example a leg spring, be provided that the carrier plate or some other mark 206 holding component, acted upon in the covering position A or the release position F.

A so-to-speak bidirectional loading into the cover position and the release position or a stop in both positions could take place via a dead center mechanism, with or without a spring.

At this point it should be noted that such a modularity or modular design of the load carrier system according to the invention can be provided that apart from providing a sufficiently large cutout in the area of the license plate mounting surface on the motor vehicle, no further measures are required. For example, the magnetic holding means 213 with ferromagnetic areas on the vehicle bracket 13a - 13h cooperate. It can also be attached to the vehicle bracket 13a - 13h Latching means, for example latching projections or latching receptacles, can be provided which are directly connected to the associated latching means on the license plate carrier 210 cooperate.

• Der Kennzeichen-Träger 210 nimmt in der Freigabestellung F eine im Wesentlichen horizontale Position ein. Wenn er dazuhin noch nach unten geschwenkt ist, ist das darauf angeordnete Kennzeichen 206 nicht ablesbar. Das ist beim Kennzeichen-Träger 220 gemäß 27 nicht der Fall. Dessen Träger-Lager 222 umfasst nämlich eine Mehrgelenk-Lageranordnung, beispielsweise ein Viergelenk-Lager, die oder das es ermöglicht, dass eine Trägerplatte 221 des Kennzeichen-Trägers 220 sowohl in der Abdeckstellung A als auch in der Freigabestellung F eine im Wesentlichen vertikale Ausrichtung hat. Somit bleibt das darauf angeordnete Kennzeichen 206 stets lesbar.

It should also be noted that, of course, the porter camp 212 not directly on the bumper 202 would have to be attached, for example to one of the vehicle brackets described below 13a - 13h can be attached. Incidentally, this also applies to the further variants of license plate carriers according to the invention, which are still described below, whose bearings, latching means, plug-in means and the like can interact directly with corresponding countermeasures on the vehicle holder:

• The license plate holder 210 assumes an essentially horizontal position in the release position F. If it is also pivoted downwards, the label is arranged on it 206 not readable. That is with the license plate holder 220 according to 27 not the case. Its porter camp 222 namely comprises a multi-joint bearing arrangement, for example a four-joint bearing, which enables a carrier plate 221 of the license plate holder 220 both in the covering position A and in the release position F has a substantially vertical orientation. Thus, the license plate arranged on it remains 206 always legible.

The porter camp 222 comprises, for example, at least one swivel arm 223 , which by means of a swivel bearing on the one hand on the vehicle side and on the other hand on the license plate carrier 220 , for example the carrier plate 221 , is pivotably mounted. The swivel arm 223 has a curved course, so that the license plate 206 in the release position F quasi downwards behind the rear 201 of the motor vehicle 200 , or behind the bumper 202 curtains.

The swivel movement of the swivel arm 223 is advantageous in each case by a steering arm 224 steered, which is also mounted on the vehicle side and the license plate carrier side with a pivot or pivot bearing. The steering arms too 224 have a curved or arched course. In the exemplary embodiment, the carrier plate pivots 221 downwards, whereby swiveling upwards is also possible. Also the porter camp 222 is expediently attached to a module that is prefabricated to the other components of the motor vehicle 10 can be mounted, for example on the vehicle carrier 11 .

The in 28 shown license plate carriers 230 is related to the motor vehicle 10 movably mounted. Its carrier plate 211 grips, for example, with its transverse ends in guide receptacles 233 of a carrier warehouse 232 , which is designed as a sliding bearing, a. The guide shots 233 are for example U-shaped or have a groove. Also the guide shots 233 are expediently on the vehicle carrier 11 or the vehicle bracket 13a - 13h arranged. It goes without saying that this also applies to the license plate carrier 230 Holding means, for example latching means or magnetic holding means, are useful so that the carrier plate 231 remains in cover position A or release position F. For example, in the area of the guide recordings 233 Latching projections, in particular in the interior of their guide grooves, may be provided.

It is preferably provided that legs 234 the taking of leadership 233 that are on the base of the carrier plate 231 protrude, so to speak in a slot or a space between the Carrier plate 231 and the license plate 206 intervention. This is, for example, approximately transversely in the center, in particular by means of screws, on the carrier plate 231 attached.

Instead of the carrier plates, for example the carrier plate 231 , can also be a frame or other holding component for the license plate 206 be provided.

The license plate holder 240 ( 29 ) points on its carrier plate 241 a castle 242 so that it can be closed in the cover position A, for example. A corresponding lock picture 252 or bolt holder in which the lock 242 or a locking projection can engage on the same, for example on the bumper 202 be provided, but also on a vehicle-side component of the load carrier system 10a - 10h , for example the vehicle carrier 11 . Thus, the vehicle-side components of the load carrier system are 10a - 10h protected against theft or vandalism, for example.

The lock 242 can of course be used in the other exemplary embodiments ( 26th - 28 for example) are used.

A lockable license plate carrier or the system described below in which the license plate carrier 240 can optionally be used on the motor vehicle and on the load carrier, is of course also useful and advantageous for load carriers that are to be attached, for example, to a coupling ball or to another coupling element of a vehicle trailer coupling (not shown).

For example, is on the carrier plate 241 a plug-in protrusion 250 provided for the vehicle mount 13a or 13b fits. The plug-in projection is, for example, on that of the license plate 206 facing away from the carrier plate 241 and can be plugged into a corresponding plug-in receptacle. On the load carrier 50a or 50b can, for example, be a plug-in receptacle 251 be provided in which the plug-in projection 250 fits. For example, the cross member 57 such a plug-in receptacle 251 on. The plug-in receptacle 251 is advantageously essentially aligned with the vehicle bracket 13a or 13b so that the license plate 206 across center on the load carrier 50a or 50b is attachable. This has the advantage, among other things, that only a single license plate 206 is required and this is also always optimally legible on the motor vehicle 200 or on the load carrier 50a , 50b can be arranged. The plug-in protrusion 250 forms part of license plate fasteners 253 . The plug-in receptacle 251 forms part of load carrier fastening means 254 with which the license plate carrier 240 on the load carrier 50a , 50b is attachable.

The load carrier fasteners 254 furthermore advantageously comprise a lock receptacle 252 that interacts with the lock. For example, the lock 242 into the lock holder 252 penetrate when the license plate carrier 240 on the load carrier 50a is attached.

If there is an abutment in addition to the lock or the lock receptacle, for example a frame-like abutment 255 , is the plug-in receptacle 251 not necessary. It is possible, for example, that the lock 242 and the abutment 255 are present in areas of the license plate carrier or its carrier plate or carrier frame which are diagonal to one another, in any case at a distance from one another, in particular corner areas, so that, for example, the carrier plate 241 in the abutment 255 could hang in or fasten it in any other supporting manner, while then the lock for a tensile, captive and secured hold 242 with the lock mount 252 cooperates.

Furthermore, a seal can expediently be present in a license plate carrier according to the invention, which for example fits sealingly around electrical plug contacts, a vehicle-side receptacle or the like, or also, for example, on a surface of the bumper. An example is the plug-in projection 250 a seal 260 drawn, for example on its outer circumference, which is in the manner of a sealing lip the vehicle bracket 13a , 13e encompassing and / or resting against the front side.

The load carrier systems 10a , 10h each follow a plug-in concept for attaching the load carrier to the motor vehicle. At this point it should be noted that the vehicle-side transversely central arrangement with in particular only a single mounting arm, whereby the vehicle-side mount can be hidden behind a license plate, of course also allows other mounting concepts, for example screwing, bracing or the like.

The vehicle bracket 13a - 13h each include plug-in receptacles 17a - 17h attached to recording parts 18a , 18h are provided, for example receiving sleeves. In the plug-in receptacle 17a - 17h are plug-in protrusions 63a - 63h can be plugged into the free ends of the mounting arms 51a - 51h available. In this case, a rotationally locking receptacle or a rotationally locking holder is preferred, so that the in the plug-in receptacle 17a - 17h inserted plug-in projection 63a - 63h is held non-rotatable. This is expediently already done The contouring of the plug-in receptacle and the plug-in projection causes polygonal or polygonal contours to be useful.

For example, in the load carrier systems 10a , 10b , 10c and 10h square or square cross-sectional inner contours 19th on the plug-in sockets 17a - 17c , 17h provided, to which also square cross-sectional outer contours 64 on the plug-in protrusions 63a - 63c , 63h , fit form-fitting. However, while the horizontal support, that is to say the support with respect to forces which act essentially vertically downwards, in the case of the receiving part 18h and the plug-in projection 63h through a bottom wall or a bottom side of the plug-in projection 63h are realized, are the inner contour 19th and outer contour 64 with the vehicle mounts 13a - 13c and the matching fastening arms, which also represent coupling parts 51a - 51c on a corner, so to speak. This enables an optimal load distribution, but in particular also a favorable centering of the plug connection between the plug receptacle 17a - 17c and plug-in protrusion 63a - 63c .

The plug-in protrusion 63a - 63c So is along a thru axle 20th into the associated plug-in receptacle 17a - 17c plugged in. In this way, the respective outer corner areas of the plug-in projection reach 63a - 63c in engagement with corresponding inner corner areas of the plug-in receptacle 17a - 17c , including a lower inner corner area of the inner contour 19th , which thus forms a guide contour or guide groove that is closed at the bottom and open at the top, as well as a corresponding guide when the load carrier system is used 10a-10c lower outer corner contour of the outer contour 64 engaged. The inner corner area forms a support receptacle 21 , the outer corner area has a support protrusion 65 . The most protruding area of the support projection is thus therefore 65 represents that area which absorbs most of the forces acting in the vertical direction, corresponding, of course, to the area of the support receptacle that is closest to the ground 21 , which can therefore also absorb most of the vertical forces.

In principle, the support projection could 65 tilt to the side around the lower bearing point, but then its side walls 66 on the side walls 22nd the support recording 21 come to rest, so are supported on the side. This guarantees the security against rotation, as well as optimal centering.

It goes without saying that this concept of the polygon placed on the corner, so to speak, is useful not only for load carriers with one fastening arm, but also for load carriers with several fastening arms or plug-in projections and matching plug-in receptacles on the vehicle (or vice versa). Combinations are also possible, i.e. the concept of the polygonal contour standing on the corner is implemented on one fastening arm, while a round contour (inner contour and outer contour) is selected for the other fastening arm and the associated vehicle bracket. Furthermore, it should be noted that the concept is of course also possible with other polygonal inner and outer cross-sectional contours, for example triangular, pentagonal or hexagonal contours. For example, one can imagine that, for example, a triangular inner and outer cross-section is selected, with essentially the same angles of the triangle appropriately lying approximately in the same horizontal plane, while the third corner area represents the individual corner area lying horizontally below the triangle "stands".

When the male protrusions 63a , 63h to the plug-in sockets 17a - 17h are infected, you can use fixatives 23a - 23h be fixed, in particular with respect to the respective quick-release axle 20th .

• An dem dem Widerlager 24a zugeordneten Längsende des Zugstabes 68 des Spannankers 67a ist ein Widerlagerteil 69 angeordnet, beispielsweise ein quer zur Längserstreckungsrichtung des Zugstabes 68 verlaufendes Anker- oder Hakenelement. Das Widerlagerteil 69 ist beispielsweise stabförmig. Das Widerlagerteil 69 ist in eine solche Drehposition verstellbar, dass es in die Einführnut 26 einführbar ist. Wird der Zugstab 68 anschließend wieder verdreht, gelangt das mit dem Zugstab 68 drehfest verbundene, beispielsweise einstückige oder angeschweißte Widerlagerteil 69 in Eingriff mit den Einführnuten 26. Zu diesem Zweck sind diese als entsprechende Langlöcher ausgestaltet, so dass das Widerlagerteil 69 quasi einschwenkbar ist. Die Haltenuten 27 verlaufen beispielsweise etwa rechtwinkelig zu einer Spannachse 70, die der Längserstreckungsachse oder Längserstreckungsrichtung des Zugstabes 68 entspricht. Die Haltenuten 27 sind zweckmäßigerweise bezüglich ihrer Längserstreckungsrichtung zueinander versetzt, so dass sie beispielsweise zu einem Punkt, der von der Spannachse 70 oder einerseits sehr nahe stehenden, parallelen Achse durchsetzt ist, punktsymmetrisch sind. Somit muss also der Bediener den Zugstab 68 lediglich verdrehen, bis das Widerlagerteil 69 an Längsenden den Haltenuten 27 anschlägt und dann verdrehfest festgelegt ist.

The fixatives 23a , 23b include tension anchors 67a , 67b , whose tension rod 68 , which can also be called a tie rod, diagonally to the Steckache 20th runs. The tension anchor 67a , 67b can at abutments 24a , 24b be set in the area of the plug-in receptacles 17a , 17b available. The abutment 24a is for example of two holding parts 25th provided by the receiving part 18a protrude, in this case, for example, downwards. The holding parts 25th are, for example, plate-like. Between the holding parts 25th is an insertion groove 26th present, in the present case as a kind of slot that provides access to the insertion groove across 26th existing retaining grooves 27 enables. The holding grooves 27 are designed, for example, in the manner of elongated holes. It goes without saying that a one-piece holding part with a groove arrangement can also be provided, which has the subsequent function of an abutment 24a Fulfills:

• On the abutment 24a associated longitudinal end of the tension rod 68 of the tension anchor 67a is an abutment part 69 arranged, for example, a transverse to the longitudinal direction of the tension rod 68 running anchor or hook element. The abutment part 69 is, for example, rod-shaped. The abutment part 69 can be adjusted to such a rotational position that it fits into the insertion groove 26th is insertable. Will be the pull rod 68 then twisted again, this is done with the pull rod 68 non-rotatably connected, for example one-piece or welded abutment part 69 in engagement with the insertion grooves 26th . For this purpose, these are designed as corresponding elongated holes, see above that the abutment part 69 can be swiveled in, as it were. The holding grooves 27 run approximately at right angles to a clamping axis, for example 70 that of the longitudinal axis or direction of longitudinal extension of the tension rod 68 is equivalent to. The holding grooves 27 are expediently offset from one another with respect to their direction of longitudinal extent so that, for example, they come to a point from the clamping axis 70 or on the one hand very close, parallel axis is penetrated, are point-symmetrical. So the operator has to pull the pull rod 68 just twist until the abutment part 69 at the longitudinal ends of the holding grooves 27 strikes and is then fixed against rotation.

In any case, this is the abutment 24a , 24b the tension anchor 67a , 67b with respect to the clamping axis 70 (or pull axle) with tensile strength.

The mounting arm 51a , 51b could accommodate the tension rod 68 of the tension anchor 67a , 67b for example have a bore. In the present case, however, there is a guide sleeve 71 provided that the mounting arm 51a , 51b diagonally, ie along the clamping axis 70 , interspersed. In the guide sleeve 71 is the pull rod 68 rotatably recorded.

On from the abutment part 69 remote end of the tension rod 68 of the tension anchor 67a a thread is provided in front of the guide sleeve 71 protrudes. There is a tendon on this thread 72a unscrewed. That tendon 72a includes, for example, a toggle-like handle housing in which a clamping nut for screwing onto the aforementioned thread of the tension rod 68 is available. The tendon expediently has 72 a castle 73 with which it can be locked. For example, the handle body is closed by locking the lock 73 rotationally decoupled from the internal clamping nut so that it can rotate freely with respect to the clamping nut, but no power transmission in the sense of loosening the clamping member 72 can exercise more.

The retaining groove 27 forms part of an abutment mount 28 for securely holding the abutment part 69 .

With the load carrier system 10b is the abutment 24a in relation to the clamping axis 70 Tension-proof holding, but not for holding the tensioning anchor so that it cannot twist 67b designed. Rather, a screw thread is provided into which the tension anchor 67b can be screwed in. For example, this includes abutments 24b A mother 29 that on the receiving part 18b arranged, for example welded on. The tendon 72b is on the pull rod 68 of the tension anchor 67b Arranged in a torsion-proof manner so that it practically forms the head of a screw. Also the tendon 72b is designed as a kind of handle, ie it can be easily grasped and rotated with one hand.

The tendons 72a , 72b are supported on the guide sleeve 71 starting so that they have a clamping force along the clamping axis 70 exercise. On the one hand, this becomes the support projection 65 in the support seat 21 quasi pushed in, namely through one to the thru-axle 20th right-angled force component R, on the other hand the free end of the plug-in projection 63a , 63b against a longitudinal stop 30th on the receiving part 18a , 18b pulled or tensioned, namely by a through axle 20th parallel force component P.

The longitudinal stop 30th and the abutment 24a , 24b are in a preferred embodiment at areas that are remote from one another, for example diagonally to one another, with respect to the plug-in axis 20th arranged. For example, the longitudinal stop 30th inside the sleeve-like receiving part 18a , 18b arranged above while the abutment 24a , 24b arranged below (based on a horizontal position). It is also advantageous that the abutment 24a , 24b and the longitudinal stop 30th based on the thru axle 20th have a longitudinal distance to each other, which quasi to a tilting and tilting of the plug-in projection 63a , 63b in the plug-in receptacle 17a , 17b leads. The abutment 24a , 24b defines, so to speak, a tipping point or pivot point around which the plug-in projection 63a , 63b Can pivot a certain, very small amount (arrow S), in any case can pivot until its free end at the longitudinal stop 30th strikes.

An embodiment not shown in the drawing can provide that the free end of a plug-in projection can strike essentially flat, ie in several rotational angle positions with respect to the plug-in axis or plug-in center axis. In the exemplary embodiments, however, there is an eccentric position for the longitudinal stop, or position facing away from the plug-in axis 30th chosen. The free end of the male projection 63a , 63b therefore does not hit a longitudinal stop over the entire surface, but only partially, the arrangement advantageously being such that a longitudinal stop area 75 with which the plug-in projection 63a at the longitudinal stop 30th and an abutment area 74 , for example the exit area of the stressing anchor 67a , 67b from the mounting arm 51a , 51b , on opposite sides with respect to the axle 20th or the plug center axis or the plane containing the respective axis.

The receiving parts 6pm - 6pm are for example attached to the vehicle carrier 11 screwed on, welded or glued on. You can use a respective vehicle carrier 11 , which is preferably designed as a tube, in particular a polygonal tube, also pass through or be arranged on a side wall. For example, there are additional supports 31 at the vehicle bracket 13a available, the forces occurring during driving optimally and at several geometrically spaced points on the vehicle carrier 11 initiate.

The following, with the load carrier system 10b The latching and securing concept implemented could of course not only be used in the plug-in system with a diagonal tensioning anchor, for example also in the load carrier system 10a , but also in a different form, additional securing elements and fixing elements having systems, for example in the form of the load carrier system 10c . On the vehicle bracket 13b is namely a locking member 32 provided that in a locking receptacle 76 at the plug-in projection 63b can snap into place. The locking member 32 comprises a spring element 33 that has a holding section 34 on the receiving part 18b Is fixed in place and of which a latching section 35 feathers protrudes. The holding section 34 is for example U-shaped, with its side legs, one of which in the latching section 35 merges into recordings 36 of a holder 37 are used. The recordings 36 are on a support leg 38 of the holder 37 arranged and facing away from each other open. Thus, the U-shaped holding portion 34 quasi from the side, ie in the direction of a direction of longitudinal extent of the latching section 35 be inserted so that the side legs of the holding section 34 in the recordings 36 prop up. The support leg 38 stands for example at an angle, for example at right angles, from a carrier 39 from, which is designed in the manner of a retaining plate. The carrier 39 is with the vehicle carrier 11 and / or the vehicle mount 13b connected, for example welded.

The latching section 35 stands in the socket 17b before. For example, the latching section is 35 into a recess 40 on the receiving part 18b in front so that it is tangential in the receptacle 17b is arranged. When the plug-in protrusion 63b into the plug-in receptacle 17b is inserted, displaces a slope 77 at the front, free end of the plug-in projection 63b the latching section 35 , which is resilient, from the plug-in receptacle 17b out. The, for example, rod-like or rod-like latching section 35 then slides on the outer circumference of the plug-in projection 63b along until the locking receptacle 76 at the plug-in projection 63b in the area in the recess 40 expediently guided spring element 33 or locking section 35 is and thus the locking section 35 resiliently in the locking receptacle 76 can snap into place. The latching section 35 then forms a stop section, since the plug-in projection 63b with the side walls of the locking receptacle 76 at the locking section 35 strikes. Thus, the plug-in projection 63b no longer accidentally out of the socket 17b get out. Thus, there is a latching which at the same time fulfills a safety function. In addition, the subsequent tensioning, for example hanging in the tensioning anchor 67a or 67b in the assigned abutment 24a , 24b very easy, as the components are already pre-positioned in relation to each other.

To release, the operator can click on an actuation section 41 of the spring element 33 or locking member 32 act in front of the receiving part 18b protrudes, it being expediently provided that the actuating section 41 and the holding portion 34 on opposite sides of the receptacle 17b available.

It goes without saying that the latching concept and securing concept presented are exemplary, that is to say that, for example, a latching bolt or latching projection can also be provided which is spring-loaded into its latching or securing position and, for example, by pulling or pushing or other actuation out of its latching and securing position can be brought into a release position.

A particularly simple concept for making electrical contacts between the motor vehicle and load carrier is in the 7th and 8th shown.

For example, in the area of the cross-sectional inner contour 19th of the receiving part 18a or 18b electrical contacts provided, in particular on a contact carrier 42 . The receiving part 18a , 18b is, as I said, sleeve-like, so that the contact carrier 42 can be housed protected in the interior space thus formed.

Also the plug-in protrusion 63a , 63b is expediently tubular or sleeve-like, so that there is also a receiving space for a contact carrier 78 is available. When inserting the plug-in projections 63a , 63b in the plug-in sockets 17a , 17b the contacts arrive at the contact carriers 42 , 78 in electrical connection with each other. For example, the one contacts are configured as contact projections, the other contacts as contact sockets or each have such. Thus, when assembling the load carrier 50a or 50b the electrical contact between the motor vehicle and the load carrier is immediately established, in particular multi-pole, so that, for example, the lights 59 without further operator action with the on-board network of the motor vehicle 200 are connected and can be used.

It would also be with the load carrier system 10a or 10c-10h an electrical contact as in the 7th and 8th shown possible. However, there are sockets in the form of trailer sockets for providing the electrical contacts, for example 14th intended.

The plug-in protrusion 63c and the plug-in socket 17c have rectangular or square outer and inner contours. For example, the plug-in receptacle 17c on the sleeve-like receiving part 18c intended. On the receiving part 18c is an eccentric longitudinal stop 30th intended. The longitudinal stop 30th and an abutment area or clamping area of the receiving part 18c are related to the thru axle 20th provided with a longitudinal distance from one another, which can advantageously bring about a certain tilting or tilting in the sense of optimized bracing. The abutment area 43 is for example on a support sleeve 44 arranged, in turn, at the free end of the receiving part 18c Is arranged against rotation, for example welded or glued or screwed on. On the support sleeve 44 that has a thread is rotatable on the mounting arm 51c bearing sleeve 79 that can be screwed onto the thread on the support sleeve 44 can be screwed on. The two threads form form-fit contours and counter-form-fit contours.

The union sleeve 79 is rotatable and to a certain extent with respect to the quick-release axle 20th , which in this respect also represents a clamping axis, displaceable, but only up to an end stop, not shown. This makes it possible that by screwing on the union sleeve 79 on the support sleeve 44 the mounting arm 51c on the vehicle bracket 13c is tense.

On the load carrier system 10c it becomes clear that a longitudinal offset between the abutment area (abutment area 43 ) and longitudinal stop (e.g. longitudinal stop 30th ) causes improved tensioning, even if there is no tensioning anchor that acts diagonally to the quick-release axle, e.g. the tensioning anchor 67a or 67b .

Furthermore, there is the longitudinal stop 30th with respect to a free end of the plug-in receptacle 17c with respect to the thru axle 20th axially offset. In addition, there is the longitudinal stop 30th arranged above a horizontal plane, below the support projection 65 or the support mount 21 are, which also causes a diagonal tensioning effect, i.e. a tilting of the plug-in projection and plug-in receptacle with one another. Thus, an optimal hold is possible.

With the load carrier system 10d according to 13th - 15th a sleeve is also provided, which is attached to the mounting arm 51d is rotatably and displaceably mounted. The plug-in protrusion 63d is just like the matching plug-in socket 17d round, for example circular. As a result, the two components can in principle be rotated relative to one another. However, it is at the front, free end of the plug-in projection 63d a stop recess 81 present that only have a partial circumference or a partial circumference of the plug-in projection 63d includes. Free circumferential end faces of the stop recess thus form 81 Rotation stops 83 attached to a stop element 45 inside the plug-in receptacle 17d Attach twist-proof. The stop element 45 thus forms a rotary stop. For example, the stop element 45 from a cross bolt 46 formed, which is positioned in the manner of a secant. To the parallel to the thru axle 20th running rotary stops 83 closes a slope serving as a longitudinal stop 82 at. So if the plug-in projection 63d into the plug-in receptacle 17d is inserted, the slope slides 82 on the stop elements 45 along and on this, so that the two components are braced against one another, especially when the union sleeve 80 on a thread 47 on the receiving part 18d is unscrewed.

During the mounting arm 51a , 51b for example by means of a U-shaped receptacle into which the cross member 53 engages with the base support 52 is connected, is the mounting arm 51d for example with a flange 48 with the cross member 53 tied together.

With the load carrier system 10e In relation to the “central” support bearing by means of a support receptacle and a support projection, a similar bearing is implemented as in couplings with vehicle mounts and fastening arms of the load carrier systems 10a , 10b , but in a kinematic reversal, so to speak. The plug-in receptacle 17e and the plug-in protrusion 63e are designed in the manner of a dovetail connection. The plug-in receptacle 17e includes a support protrusion 49 for engaging in a support seat 84 at the plug-in projection 63e . The thru axle 20th runs at the plug connection of the load carrier system 10e transversely, for example at right angles, to the longitudinal extension direction of the fastening arm 51e . Thus, the support recording 84 virtually from above onto the support projection 49 put on. A plate 110 the vehicle bracket 13e has an end face 111 to create a plate 112 that is at the free end of the mounting arm 51e is arranged. The plates 110 , 112 are located when the coupling is installed (plug-in projection 63e on vehicle bracket 13e ) essentially flat against each other, so that an optimal support of the two components on each other is guaranteed.

In front of the contact surface 111 stands the support projection 49 before. The support projection 49 has two supporting surfaces which run at an angle to one another, for example roof edge-like 113 . The support surface 113 form groove bottoms of grooves that go through the plate on the one hand 110 , on the other hand by a guide plate 114 is limited. The guide plate 114 runs parallel to the plate 110 . The guide plate 114 and the plate 110 So limit between them receiving grooves, the bottom of the groove by the roof edge-like support surfaces 113 is formed. The guide plate also expediently has 114 one to the support surfaces 113 Correlating contour, is also (inner) roof edge-like.

Corresponding to the angled, advantageously pointed, converging support surfaces 113 are contact surfaces 115 the support recording 84 designed. The contact surfaces therefore also run 115 at an angle towards each other. The angular position of the support surfaces 113 to each other and the contact surfaces 115 is the same to one another, at least essentially the same, so that the contact surfaces 115 when plugging in the plug-in projection 63e to the plug-in receptacle 17e slide along each other. Centering and optimal contact is automatically guaranteed, since the support surfaces 113 like a wedge between the contact surfaces 115 penetration. It should also be noted that there is an angle bisector between the contact surfaces 115 and the support surfaces 113 when the load carrier system is in a horizontal position 10e (normal position of use) lie approximately in the area of a vertical plane.

The plate 112 has such a strength that it is in the space between the plate 110 and the guide plate 114 fits, as form-fitting as possible and with little play.

It goes without saying that tensioning and locking means can be provided for additional fixation, for example bracing in the manner of the tensioning anchors 67a , 67b realized bracing or, for example, a latch 116 , which is the plug connection between the plug-in projection 63e and plug-in receptacle 17e locked. For example, the latch could 116 be swiveled over the two nested components ( 17th ) so that it acts as a locking connection for the male protrusion 63e acts so that it is not in the direction of the quick-release axle 20th from the plug-in socket 17e can be pulled out.

With the load carrier system 10f becomes a plug-in protrusion 63f into a plug-in receptacle on the vehicle side 17f plugged in. On the vehicle bracket 13f is an eccentric clamping lever 120 arranged, for example, a not visible in the drawing cross bolt that the plug-in projection 63f penetrated, in the sense of tensioning. But it is also conceivable that the eccentric clamping lever 120 a transverse force across the axle 20th exercises in such a way that, for example, in the sense of narrowing the plug-in receptacle 17f acts and thus the plug-in projection 63f in the plug-in receptacle 17f stuck.

That in the 20th , 21 shown load carrier system 10g uses a locking and plug-in concept known from trailer hitches. For example, the coupling arm 207 on the coupling receptacle 15th be locked with a similar locking technique.

The plug-in receptacle 17g includes transverse to the thru axle 20th running form-fit grooves 130 , for example round grooves that provide a rotationally locking connection of the mounting arm 51g in the vehicle holder 13g enable. In the form-fit grooves 130 grip form-fit projections 131 form-fitting one that leads to the form-fitting grooves 130 have suitable circumferential contours. The form-fit projections 131 are formed, for example, by a cross bolt that connects the mounting arm 51g across the thru axle 20th interspersed, for example at right angles. Thus, there is a rotationally locking receptacle of the plug-in projection 63g in the plug-in receptacle 17g also possible if, as in the present case, both components have per se round circumferential contours, so that they are per se rotatable relative to one another.

Inside the plug-in projection 63g is a locking element, for example a bolt 132 , roughly along the quick-release axle 20th slidably mounted, with balls in a locking position 133 or other form-fitting bodies radially outward in front of an outer circumference of the plug-in projection 63g displaced so that this is in a form-fit receptacle 134 , for example a channel or circumferential groove, inside the plug-in receptacle 17g intervene positively. This is the plug-in protrusion 63g against being pulled out of the socket 17g secured and also braced into it. For actuating the bolt 132 or locking element is an actuating lever 135 , which has a gear, for example a toothed gear, with the bolt 132 is motion-coupled.

The one in the 22nd until 25th shown load carrier system 10h a plug-in and locking concept is implemented, which of course can also be used with load carriers and associated vehicle brackets that have several fastening arms and associated brackets on the vehicle.

The outer contour of the plug-in projection 63h and the inner contour of the socket 17h are each polygonal, here for example square. The arrangement is made so that the plug-in projection 63h on a bottom surface of the plug-in receptacle 17h rests flat. It goes without saying that a corner position, similar to the load carrier systems 10a-10c also with the plug-in protrusion 63h and the plug-in receptacle 17h can be implemented, so that both components “stand” on one corner, so to speak. The locking concept described below also works then.

The plug-in protrusion 63h has a receiving space inside, in which a holding forceps 140 is recorded. Pliers parts 141 the holding forceps 140 are by means of a pivot bearing 142 pivotable to each other. The bearing pin 143 expediently stands in the direction of the pivot axis of the pivot bearing 142 in front, so that it is in an upper and / or a lower side wall 144 of the plug-in projection 63h can penetrate. This is the holding forceps 140 with respect to the thru axle 20th immovable in the plug-in projection 63h recorded.

An appropriate measure can provide that the bearing pin 143 the side walls 144 even penetrates, ie protrudes outwardly in front of this, so that it can at the same time form a form-fit projection that is inserted into a form-fit receptacle 145 at the plug-in receptacle 17h , for example at the end of the same, can penetrate positively. However, this measure is optional. Due to the polygonal cross-section of the plug-in receptacle 17h and the plug-in projection 63h an additional form fit is not necessary. Furthermore, a fixed in front of the side walls 144 protruding form-locking projection, for example, a form-locking projection that is integral with this, can be provided.

The pliers parts 141 each include an actuator arm 146 as well as a holding arm 147 on opposite sides with respect to the pivot bearing 142 are arranged. The two operating arms 146 are by a spring 148 acted upon away from each other, so that, mutatis mutandis, the retaining arms 147 by the pen 148 are acted upon away from each other. The pliers parts 141 are by the spring 148 practically spread apart. It goes without saying that also between the holding arms 147 a spring would be possible. Furthermore, it would be conceivable that each of the pliers parts 141 via a separate spring on the plug-in projection 63h supports so that the pliers parts 141 in this way the in 23 Take the blocking position B shown.

On the operating arms 146 are actuation areas that can be actuated by an operator 149 provided, ie on opposite sides of the actuating arms 146 . The operating arms 146 stand with their areas of activity 149 in operating recesses 150 in front of them so that an operator can grasp them, in particular press them. By operating the operating arms 146 in the direction of the actuation recesses 150 into an inserted or unlocked position E ( 24 ), with the holding contours 151 on the holding arms 147 through openings 152 at the plug-in projection 63h step through it and so far in front of an outer surface of the plug-in projection 63h protrude that they are in engagement with counter holding contours 153 at the plug-in receptacle 17h are. The counter holding contours 153 are of holding shots 154 formed in which the holding contours 151 intervene in blocking position B.

The holding shots 154 , the passage openings 152 as well as the actuation recesses 150 are in pairs on opposite side walls of the plug-in receptacle 17h as well as the plug-in projection 63h arranged. At the actuation recess 150 , the passage openings 152 and the holding fixtures 154 it is, for example, elongated holes that match the outer contours or passage contours of the holding forceps 140 , each of which is provided for engagement in the respective recess. It goes without saying that other geometries of the recesses are also possible.

• Im vollständig eingesteckten Zustand fluchten nämlich die Durchtrittsöffnungen 152 und die Halteaufnahmen 154, so dass die Haltekonturen 151 in die Halteaufnahmen 154 im Sinne eines Haltens und Verriegelns eingreifen können. Bei dem vorgenannten Einsteckvorgang werden die Haltekonturen 151 beispielsweise durch Druck auf die Betätigungsbereiche 149 nach innen, vor einen Außenumfang des Steckvorsprungs 63h zurück verdrängt. Bevorzugt weisen die Haltekonturen 151 jedoch vorne eine Schräge 155 auf, d.h. eine Einführschräge, die an die Stirnseiten des Aufnahmeteils 18h anschlägt und an dieser die Haltekontur 151 zum Steckvorsprung 63h verdrängend entlang gleiten kann. Somit ist also ein Eingriff des Bedieners, d.h. ein Drücken auf die Betätigungsarme 146, nicht nötig, wenn der Steckvorsprung 63h in die Steckaufnahme 17h gesteckt wird.

When the plug-in protrusion 63h is fully inserted into the receptacle, engages, as explained, a free end of the bearing pin 143 or another clamping stop or form-fitting stop on the plug-in projection 63h in the form-fit receptacle 145 which can also be referred to as a clamping fixture or clamping counter contour in the following consideration:

• In the fully inserted state, namely, the passage openings are aligned 152 and the holding fixtures 154 so that the retaining contours 151 in the holding fixtures 154 can intervene in the sense of holding and locking. In the above-mentioned insertion process, the holding contours 151 for example, by pressing on the actuation areas 149 inward, in front of an outer circumference of the plug-in projection 63h pushed back. The holding contours preferably have 151 but a bevel at the front 155 on, ie a lead-in bevel, which is attached to the end faces of the receiving part 18h strikes and on this the retaining contour 151 to the plug-in protrusion 63h can slide displacingly along. Thus, there is an intervention by the operator, that is to say a pressure on the actuating arms 146 , not necessary if the plug-in projection 63h into the plug-in receptacle 17h is plugged.

However, if the holding shots 154 in the area of the holding contours 151 are, they come free and grip into the holding fixtures 154 a. Then latch surfaces strike 157 at the longitudinal ends 158 (based on the thru axle 20th ) the holding receptacles and act in the sense of a hooking in such a way that the plug-in projection is pulled out 63h from the plug-in socket 17h is blocked.

An embodiment not shown in the drawing can provide that the locking surfaces 157 are beveled so that they form clamping surfaces that clamp the plug-in projection 63h in the plug-in receptacle 17h cause.

It goes without saying that the passage openings 152 are not absolutely necessary. Rather, for example, a holding arm 147 or can use both holding arms 147 free in front of the free end of the plug-in projection 63h protrude (not shown) and yet to engage in the holding receptacles 154 be designed.

The latch surface 157 can be designed as a clamping surface, for example with the free end of the bearing pin 143 that is in the form-fit receptacle 145 engages, cooperate in the sense of a tension, ie that the locking surfaces 157 in a function as clamping surfaces the "form-fit projection" of the bearing pin 143 in the form-fit receptacle 145 pull in or cock.

Furthermore, it is also not necessary, for example, for the bearing pin 143 regarding the thru axle 20th non-shifting fixing of the holding forceps 140 at the plug-in projection 63h is provided. This function can also be used, for example, by the actuating arms 156 , at least in the sense of supporting: On the actuating arms 146 are namely stop surfaces 159 formed on the longitudinal stops 160 of the plug-in projection 63h attacks. The longitudinal stops 160 are, for example, from the longitudinal ends of the actuating recesses 150 educated.

The stop surfaces 159 are for example in the areas of activity 149 , which are designed as projections, arranged. The stop surfaces 159 , 160 run transversely to the quick-release axle 20th , which is also a clamping axis or locking axis for the holding forceps 140 forms.

On the carrier 50h The fastening arm has the longitudinal end area facing it 51h a holding shot 161 that from the cross member 53 is permeated. The holding shot 161 is designed, for example, as a push-through opening or as a receiving groove.

Claims (12)

Coupling for a load carrier system for a motor vehicle (200), with a vehicle bracket (13a-13h) for attachment to a rear (201) of the motor vehicle (200) and with one for attachment to the vehicle bracket (13a-13h) ) provided fastening arm (51a-51h) of a load carrier (50a-50h), which has a support area for carrying a load, from which the fastening arm (51a-51h) protrudes for fastening to the vehicle bracket (13a-13h), and with Fixing means (23a-23h) with which the fastening arm (51a-51h) and the vehicle bracket (13a-13h) can be fixed to one another, with the at least one vehicle bracket (13a-13h) and the at least one fastening arm (51a -51h) plug-in means for plugging the at least one fastening arm (51a-51h) onto the at least one vehicle mount (13a-13h) along a plug-in axis (20), the plug-in means being a plug-in receptacle (17a-17h) and a plug-in projection ( 63a-63h), characterized in the I. Inside the plug-in receptacle (17a-17h) or the plug-in projection (63a-63h) there are holding pliers (140) which have holding contours (151), and in the other component, the plug-in projection (63a-63h) or the plug-in socket (17a-17h) ), Counter holding contours (153) are arranged for engagement with the holding contours (151), the tong parts (141) of the holding tongs (140) being pivotable relative to one another by means of a pivot bearing (142) and being moved into a blocking position (B) by a spring (148) are acted upon so that the holding contours (151) snap into the counter holding contours (153) when the plug-in projection (63a-63h) is inserted into the plug-in receptacle (17a-17h). Clutch after Claim 1 , characterized in that the plug-in receptacle (17a-17h) and / or the plug-in projection (63a-63h) has at least one latching element (32) and / or a securing element for locking onto the respective other component or for securing the plug-in projection (63a-63h) the plug-in receptacle (17a-17h). Clutch after Claim 2 , characterized in that tensioning means are provided in addition to the latching member (32) or the securing member. Clutch after Claim 2 or 3 , characterized in that the latching member (32) or the securing member comprise a spring element which has a stop section (35) which is provided for latching or securing and which runs in the plug-in receptacle (17a-17h), in particular tangentially, and an actuating section (41) which protrudes laterally in front of the plug-in receptacle (17a-17h) for actuating the spring element in the sense of unlocking or unlocking. Coupling according to one of the preceding claims, characterized in that the plug-in receptacle (17a-17h) and the plug-in projection (63a-63h) with respect to the motor vehicle (200) and thus the axle (20) have an approximately horizontal course. Coupling according to one of the preceding claims, characterized in that on the vehicle bracket (13a-13h) and the fastening arm (51a-51h) electrical vehicle contacts and electrical load carrier contacts for establishing an electrical connection between the motor vehicle (200) and the load carrier (50a-50h) are provided. Clutch after Claim 6 , characterized in that the electrical vehicle contacts and the electrical load carrier contacts are arranged in an interior of the vehicle bracket (13a-13h) and the fastening arm (51a-51h) so that they are encased when the fastening arm (51a -51h) is attached to the vehicle bracket (13a-13h). Coupling according to one of the preceding claims, characterized in that the holding contours (151) have holding projections and the counter holding contours (153) have holding receptacles (154) for engagement with the holding contours (151). Coupling according to one of the preceding claims, characterized in that at least one actuating recess (150) is provided on the component receiving the holding tongs (140), the plug-in receptacle (17a-17h) or the plug-in projection (63a-63h), into which an associated The actuating arm (146) of the holding tong (140) engages at least in the blocking position (B) and / or the holding tong (140) is immovable with respect to the plug-in axis (20) in the component receiving it, the plug-in receptacle (17a-17h) or the plug-in projection (63a) -63h), is arranged, in particular in that the actuating arm (146) is held immovably in the actuating recess (150) and / or that at least one of the holding contours (151) has a clamping contour for bracing the plug-in projection (63a-63h) with the plug-in receptacle (17a-17h). Coupling according to one of the preceding claims, characterized in that the plug-in receptacle (17a-17h) has a cross-sectional inner contour (19) matching a cross-sectional outer contour (64) of the plug-in projection (63a-63h), the outer contour (64) or the inner contour (19) has a support projection (65) protruding transversely to the plug axis (20) or transversely to the longitudinal extension direction of the fastening arm (51a-51h), in particular an outer corner, for engaging in a transverse to the plug axis (20) or transversely to the longitudinal extension direction of the Fastening arm (51a-51h) extending support receptacle (21), in particular an inner corner, the inner contour (19) or the outer contour (64), wherein the support receptacle (21) the support projection (65) or the support Projection (65) supports the support receptacle (21) in the vertical direction. Clutch after Claim 10 , characterized in that the inner contour (19) and the outer contour (64) are diamond-shaped or square and / or the support projection (65) and the support receptacle (21) form upper or lower, supporting corner areas of a triangle or polygon and / or the at least one vehicle mount (13a-13h) and the at least one fastening arm (51a-51h) have matching dovetail contours or triangular contours. Load carrier (50a-50h) with a coupling according to one of the preceding claims.

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