WO2013017115A2

WO2013017115A2 - Mounting device with a cable guide for an electric vehicle

Info

Publication number: WO2013017115A2
Application number: PCT/DE2012/000723
Authority: WO
Inventors: Uwe Reddmann
Original assignee: Kiekert Aktiengesellschaft
Priority date: 2011-07-29
Filing date: 2012-07-14
Publication date: 2013-02-07
Also published as: DE102011080082A1; WO2013017115A3

Abstract

The invention relates to a mounting device, in particular for an electric vehicle, having an electric cable which is mounted or can be mounted in the mounting device, a conveying device for conveying electric cable for the purpose of mounting in the mounting device and a cable guide. The cable guide extends in a curved fashion such that one section of electric cable which bears against the cable guide has a minimum bending radius above six times, preferable above seven times, particularly preferably above 10 times, the diameter of the electric cable. As a result, damage to the electric cable is avoided, to be precise, in particular, damage which can occur owing to an excessively small radius during the conveying of the electric cable. Alternatively or additionally, the cable guide is part of a direction device for sensing cable tensile forces.

Description

Bearing device with cable guide for an electric vehicle

The invention relates to a storage device, in particular for an electric vehicle with an electric cable stored or storable in the storage device, a transport device for transporting the electric cable for storage in the storage device and a cable guide.

From the unpublished German patent application 102010061 892, an electric cable of an electric vehicle emerges, which can be wound in two dimensions on a cable drum serving as a storage device. A transport device is used to wind the electric cable on the cable drum, so the transport of the electric cable for storage in the storage facility. The transport device may comprise an electric drive or a spring for feeding and winding the electric cable into the cable drum.

A serving as a storage device cable drum on which an electric cable can be wound up, it is apparent from the document US 01 868409 A. Again, the cable is wound two-dimensionally, so that winding takes place in only one plane. Cable sections of the cable are only on each other, but not next to each other.

German patent application 102010040786, unpublished, discloses moving a charging cable of an electric vehicle for storage in an interior serving as a storage device by means of a transporting device in order to support the electric cable in the interior, for example in the preferably two-dimensionally folded state. As transport means electrically driven rollers may be provided which are connected to the electric cable for a Tra nsportieren example, for storage in the storage facility abuts.

An electric vehicle is a vehicle which can be moved directly or indirectly by an electric drive. To be able to electrically drive the electric vehicle, the electric vehicle includes a battery that provides the electric power for propulsion. In order to be able to charge the battery of the electric vehicle when required, the electric vehicle includes a storage device of the type mentioned at the outset. For charging, the electric cord serving as a charging battery is moved out of the bearing device and electrically connected to a charging station. The Elektroka bel is always provided for connection to a charging station with a charging plug or a charging socket. For charging the Elektroka is bel, which is stored by the storage device, pulled out and brought Hera in this sense in an extended position. It is then the charging ecker of the electric cable plugged into a charging socket of Ladesta tion inserted or vice versa a charging plug of the charging station in the charging socket of the electric cable. In connection with this, the battery of the electric vehicle can be charged. After charging, the charging plug is disconnected from the charging socket. By means of the transport device, the electric cable is then moved back into the storage room and stored or stored there. It is Aufga be of the invention to provide a Ka belführung with advantageous properties for a Lagereinric maintenance of the gena nnten kind.

A storage facility comprises the features of the first request to solve the problem. Advantageous embodiments emerge from the subordinate claims. The intended in particular for an electric vehicle claims according to the storage device comprises an electric cable, which can be stored by the storage facility. The storage device comprises for such a storage of the electric cable, for example, an interior in which the electric cable can be stored, for example in the manner described in German Patent Application 102010040786 by folding. Alternatively, the storage device may for example comprise a cable drum on which the electric cable can be wound up for storage. Preferably, the electric cable is stored by the storage device two-dimensionally, that is folded, for example, in a plane or wound, for example, in the manner described in German Patent Application 102010061 892 on a cable drum. In particular, during a journey of an electric vehicle, the electric cable is supported by the bearing device and is then in its stored position. It is located in the stored position, for example in an interior of the storage facility and / or is wound on a cable drum of the storage facility. In order to transport the electric cable in its stored position, there is a transport device. The transport device preferably comprises an electric drive, by means of which the electric cable can be brought into its stored position. The electric drive preferably comprises an electric motor. Alternatively or additionally, one or more springs can be used as transport means, which springs are biased by pulling the electric cable out of its stored position. Such one or more springs are already preferred biased from the beginning and are additionally biased by the extraction.

There is also a cable guide for guiding the electrical cable during transport between a stored position and an extended position of the electrical cable. Due to the cable guide is the Electric cable out when it is pulled out of its stored position and so brought into its extended position or vice versa. A cable guide in the sense of the present invention leads the electric cable during its transport. The electric cable rests against the cable guide during its transport and is guided by means of the cable guide. The cable guide is in particular adjacent to the area from which the electrical cable can be led out of the storage facility. If the storage device comprises, for example, an interior in which the electric cable can be stored, then the cable guide is preferably arranged adjacent to the opening of the interior, from which the electric cable is brought out of the interior for pulling out.

The cable guide runs in such a curved manner that a section of the electrical cable which bears against the cable guide has a minimum bending radius above six times, preferably above seven times, particularly preferably above ten times the diameter of the electric cable. Preferably, the cable guide on an arc shape having a radius corresponding to the minimum bending radius with respect to the diameter of the electric cable used. As a result, damage to the electric cable is avoided and in particular damage that may occur due to a too small radius during the transport of the electric cable.

Alternatively or additionally, the cable guide is part of a detector device which is able to detect a cable tensile force and in particular a minimum cable tensile force and / or a maximum cable tensile force. A cable pull force occurs when the electrical cable is subjected to a voltage. For example, by pulling the electric cable from its stored position such a voltage and thus a cable traction is built or increased. By the tension a force is exerted on the cable guide. The larger the voltage resp. Cable pulling force is, the greater is the force acting on the Kabelführu ng. With the aid of the cable guide, this force can be detected, preferably at least one maximum force and / or one minimum force. The detection or detection of the force serves, in particular, to control the transport of the electrocabel. A control of the transport of the electric cable is present when the operation of the transport device is controlled in dependence on the detected cable tensile force.

In one embodiment, the detector device can detect who is falling below a predetermined minimum cable pull force. Such a predetermined minimum cable pulling force is at least then undershot, if the electric cable is not applied to the cable guide and, for example, the cable guide is pivoted to an appropriate position. The control, which is present in particular in the form of an electrical and / or electronic control device, then preferably causes the electric cable to be pulled in, that is to say it moves in the direction of its stored position or. or a transport in extension direction is slowed down or stopped when the electric cable is to be pulled out. Retraction kan n happen, for example, by winding on a cable drum. If such a bellows drum is rotated in the unwinding direction by an electric drive in order to be able to pull out an electric cable, the rotational speed is preferably slowed down or stopped when a minimum pull-out force is exceeded. If the minimum cable pulling force is reached again in this way, the further transport in the feed direction, that is to say in the direction of the mounted position in one embodiment of the invention, is stopped by the control or continued in the pull-out direction if the withdrawn electrobag is to be stored. or accelerates when the electrical cable is pulled out shall be. For example, a sagging of the electric cable, which could cause interference, is thus avoided.

In one embodiment of the invention, further transport of the electric cable in the feed direction for storage by the controller is stopped as soon as a predetermined maximum cable pull force is reached. In one embodiment of the invention, a further transport of the electric cable in the extension direction for withdrawal by the controller is accelerated, as soon as a predetermined maximum Kabelzug- force is achieved. An excessive load of one or more components of the storage facility, which could lead to disturbances or damage, is thus avoided. A maximum cable pulling force is achieved in particular when the electric cable is retracted on the one hand or at least a force is exerted on the electric cable for movement in the direction of stored positions by the transport device and on the other hand, the electric cable is fixed outside the storage facility. The electric cable can be fixed outside the bearing device because an operator holds it, for example, or because the electric cable is at least mechanically connected, for example, to a charging device. A maximum cable pulling force is achieved in one embodiment, when the pivotally mounted cable guide has been moved against a corresponding stop or beyond a predetermined pivoting range. Such a stop or a limitation may at the same time be a microswitch which is able to detect the reaching of the stop position or the reaching of a predetermined pivoting range.

Preferably, the electrical cable is retracted by means of a drive, wherein a detection of the minimum and maximum Elektrokabelzug- force as described above is detectable. When pulling out the electric cable, however, a preferred embodiment is that the drive is decoupled from the cable drum of the bearing device. While pulling out, a user of the electric Cable therefore no resistance by the drive and the bearing device rotates freely. On the other hand, during drive-assisted retraction, the drive is controlled via the cable guide.

In one embodiment, the cable guide is pivotally mounted. In addition to a pivotable storage, it is also conceivable that the cable guide is movably mounted. Movable here means that the cable guide is taken translational or parallel displaceable. In a translational attachment, the cable guide can be accommodated, for example, on a pivotally mounted lever so that the cable guide moves in a straight line or on a path describable as a circular path. In addition, it is also conceivable that the cable guide is accommodated in such a way that the cable guide carries out a movement that is almost parallel to the charging cable. Under pivoting in the context of the invention is also by the pivotal mounting of Kabelfuhrung one end of the cable guide can cover very long distances, when the pivotal mounting is arranged at the other end. As a result, a detection of Kabelzugkräften is facilitated and / or improved.

A pivotable mounting is achieved in one embodiment of the invention by an axis about which an end portion of the cable guide can be pivoted. Alternatively or additionally, at least one region of the cable guide, preferably an end region of the cable guide, can be made flexible. Alternatively or additionally, the cable guide and in particular an end region of the cable guide can be fastened, for example, with a flexible film which allows pivoting. The film may for example be indirectly attached to a base plate. By bending the flexible region or the flexible film, a pivoting of the cable guide can then be effected. In this embodiment, the cable guide is pivoted in dependence on the cable pulling force. By the Detecting one or more positions, for example by means of one or more microscholters and / or with the aid of one or more control levers, the size of a cable traction force can be determined, that is, detected, which is exerted on the electric cable. Other one or more detectors can also be used to detect one or more positions or positions of the cable guide, for example capacitive detectors or optical detectors or potentiometric detectors. In one embodiment, a spring is provided, by which a bias voltage can be applied to the cable guide, wherein the bias of the cable pulling force counteracts. The spring is thus arranged so that it is able to move a pivotable cable guide and that opposite to the force that is exerted on the cable guide due to the cable pulling force. The spring may act indirectly, for example via a pivot lever or lever on the cable guide or be connected directly to this.

The spring is preferably arranged at the end region of the cable guide, which faces a pivotably mounted end region of the cable guide in order to be able to pivot the cable guide with little effort. Alternatively, the spring can be arranged in the region of a pivot point of the cable guide and thus act directly on the cable guide. For example, a compact design of the cable guide can be detected.

The spring is in particular biased in any position in order to exert a force on the cable guide at any time and to be able to move the cable guide, for example, at any time to an end position, for example until reaching a stop, as long as this is not prevented by a correspondingly large counterforce becomes. A correspondingly large counterforce occurs when Kabelzugkräfte are correspondingly large. In one embodiment, one or more switching means, in particular micro-switches are present, which are able to detect one or more positions of the cable guide. Preferably, the one or more micro-switches are thus part of the detector device, which are able to detect a cable pulling force, since a respective position of the cable guide depends on the cable pulling force. The one or more microswitches are preferably arranged at the end region of the cable guide, which lie opposite the pivotably mounted end region of the cable guide in order to be able to determine cable tensile forces in a particularly reliable and accurate manner.

Alternatively or additionally, the cable guide in one embodiment can pivot at least one shift lever. In particular, an end region of the cable guide is able to pivot a shift lever, and in particular the end region, which is opposite to the pivotally mounted end region of the cable guide. The end region, which is opposite the pivotably mounted end region, sweeps particularly long distances during a pivoting movement of the cable guide. The respective position of this end region is therefore particularly well suited to be used for determining a cable traction.

In one embodiment, the cable guide is connected by a slot and a reaching into the slot bolt with the shift lever or a pivot lever. The shift lever or pivot lever has, for example, at its distal end on a bolt which extends into a slot of the cable guide so as to operate the lever suitable by pivoting the cable guide can. On such a lever, in one embodiment, a spring may act to indirectly move the cable guide to the end position, which corresponds to the minimum cable pulling force.

In one embodiment, an end portion of the cable guide is pivotally mounted and a stop exists, the pivoting movements to limit the cable management. Fehlfunkfionen be avoided so improved. In order to minimize the need for space for the provision of such a stop, the stop is formed in particular by a slot and a reaching into the slot bolts.

The cable guide comprises in one embodiment a plurality of rotatably mounted rollers on which the electric cable rests during transport. Friction losses during transport of the electric cable are thus minimized. The rotatably mounted rollers are arranged in particular arcuate. By the _. Rolls is then provided in particular the arc shape with the claimed radius. Preferably, the cable guide has at least three rollers, more preferably at least five rollers and more preferably six and more rollers.

An axis which serves for the rotatable mounting of such a roller is preferably at the same time the axis about which the cable guide can be pivoted. One axis is used twice as many as the number of components required. advantageously reduced.

In one embodiment of the invention, the cable guide can be pivoted about an axis of a roller, which is arranged as seen from an end region as the last or penultimate role. For example, if there are six rollers that are arcuately arranged, the axis of a last or penultimate roller of that arch is used to pivotally mount the cable guide.

In a further alternative embodiment, the rollers are inserted on one side into the cable guide and / or locked. The charging cable is primarily on one side of the cable guide or on the rollers of the cable guide. The force of the installation of the charging cable on the rollers can in this case from the bias of the spring and on the charging cable acting traction result. The tensile force can be generated on the one hand from the tensile force of the drive and on the other hand from a tensile force on the charging cable, which is generated for example by pulling out the charging cable. A control of the tensile force and the spring force in this case require that the charging cable rests at any time under bias on the rollers of the cable guide. According to this embodiment, this bias is used to hold the rollers in the cable guide. Preferably, the cable guide and in particular the walls of the cable guide openings in which the rollers or a rotational axis of the rollers can be inserted or inserted. The openings point in the direction of the charging cable resting against the cable guide, so that the rollers are held in their position by means of the prestressing between the charging cable and the cable guide. The rollers are inserted into the openings of the walls of the cable guide. Alternatively, the openings of the walls may be formed such that the rollers or the axes of the rollers, in the case of multi-part rollers, are snapped or clipped into the openings of the walls. For example, latching or clipping the rollers offers an advantage in mounting the cable guide.

An embodiment of the invention results when at least one wall of the cable guide can be used as a guide for the charging cable. If at least one wall, at least in the direction of the charging cable, extends beyond a diameter of the rollers, then the cable guide simultaneously serves to secure the position and position of the charging cable along the cable guide. Preferably, both walls extend in the direction of the charging cable beyond the diameter of the rollers and form a recordable as an open channel guide for the charging cable. The charging cable is guided between the upper and lower walls of the cable guide and along the rollers. The walls serving as a guide can be located in regions or along the extend over the diameters of the rollers.

In one embodiment, an electric drive is present, and in particular an electric motor with which the electric cable can be transported to its stored position. However, a drive can for example also be based on alternative drives, so it is conceivable, for example, to use pneumatic, hydraulic or combined drives. An electric drive makes it possible to react in a particularly suitable manner to changing cable pulling forces, for example during transport, both in the extension direction and in the direction of feed of the electric cable. An electric drive and in particular an electric motor also allows the detection of a cable tensile force due to the power requirement or the load current for the operation of the motor. The power consumption of an electric drive is therefore used in one embodiment alternatively or additionally for the detection of the desired cable traction. In one embodiment there is a rotatably mounted cable reel on which the electric cable is wound up for storage, preferably two-dimensionally, to allow a particularly reliable operation and also a flat construction prm that can be suitably accommodated in a motor vehicle, such as flat adjacent to a spare tire. Preferably, a toothed wheel adjoins the cable drum and is fixedly connected to this or the drum of the cable drum. The gear and thus the cable drum can then be rotated by another gear of an electric drive and that is particularly accurate and reliable in the desired manner.

In one embodiment, the cable guide is designed as a switch, with the particular turned on the retraction of the electric cable can be. With the aid of the cable guide, it is then possible in particular to detect a signal which is generated by preferably jerky, one or more pulls on the electric cable. Thus, for example, if, in one embodiment, jerks are pulled jerkily on the electric cable twice in quick succession, this provides the signal that the electric cable should be pulled in. By the cable guide along with suitable detection means or devices, the double jerky pulling on the electric cable is detected and subsequently the drive is switched on so that the electric cable is drawn into the storage facility. In a particularly comfortable way so the pulling of the electric cable can be set in motion. In the same or similar way, the drive can be set in motion by signal-like pulling on the electric cable in such a way that the electric cable is transported out of the bearing device by the drive. For example, a single jerky pull may represent such a signal that causes the drive to assist in transporting the electrical cable out of the storage facility. However, other detection devices may alternatively or additionally be provided in order to detect a signal-like pull on the electrical cable and subsequently to turn on a drive in a corresponding manner. Thus, the load current of an electric motor used as a drive can be monitored and its course can be used as a signal for switching on. There may be a switch which can be actuated directly by pulling on the electric cable and which turns on by one or more jerky pulling the drive, so as to move the electric cable into the storage facility into it.

A signal-like pulling on the electric cable can be used in an analogous way for switching off the drive.

An embodiment of the invention will be explained in more detail below with reference to figures and description. Show it

Fig. 1: storage facility

2: section of the storage facility

3: cutout in the storage facility

The bearing device 1 shown in FIG. 1, comprising a cable drum, comprises a base plate 2 on which a toothed wheel 3 is rotatably mounted. With the gear 3 a rotatable about the circular portion 4 drum is directly or indirectly fixed, which serves to wind the electric cable 5. The gear 3 and in particular the radial extent of the gear 3 serves as a side cover for the wound electric cable 5. In addition, a further outer circumferential peripheral cover 6 may be present, which covers the gap between the gear 3 and an inner wall 23. Such an optionally provided outer cover 6 has an opening through which the electric cable 5 is led out of the cable drum. The electric cable 5 is wound up in the winding space formed by the drum, the gear 3, an inner wall 23 and the optional outer cover 6.

The cable drum further comprises a side cover 7, which serves to cover a compensation space for the electric cable 5. In the compensation chamber is permanently a fixed predetermined section of the electric cable 5, which is loosely wrapped around the non-rotatable inner region 4 around. The electric cable 5 is guided through the non-rotatable inner region 4 in the compensation space. For this compensation space, the electric cable is led out on the outer circumference and from here into the changing room. The section of the electric cable 5 in the compensation space allows winding and unwinding of the electric cable 5 in the winding space without sliding contacts must be provided. To the outside, the compensation chamber can be shielded by an outer, circumferential cover 24. The outer diameter of the gear 3 preferably corresponds approximately to the outer diameter of the side cover 7 and / or the inner wall 23, which separates the compensation space from the winding space, so that the teeth of the gear 3 for the gear of an electric motor 8 are arranged easily accessible. Preferably, the teeth of the gear 3 with respect to covers 6, 7, 34 and / or 24 protrude to be easily accessible for a driving gear. The side cover 7 may be arranged rotatably or rotate together with the drum when the electric cable 5 is wound or unwound. The inner wall 23 basically rotates together with the drum and is therefore basically attached to this. The not shown, driving gear of the electric motor 8 is on the shaft of the electric motor 8 or on a shaft of a transmission and / or a clutch, which is driven by the electric motor 8, attached. If this gear, not shown, rotated by the electric motor 8, so that the gear 3 and consequently also the drum is rotated accordingly and thus driven for winding or unwinding of the electric cable 5. The electric motor 8 is preferably mounted on the plate 2.

The bearing device 1 shown in FIG. 1 comprises a cable guide 9 against which the electric cable 5 rests. More specifically, the electric cable 5 is applied to a plurality of rollers 10, for example to a total of six rollers 10, which are arranged in an arc. The radius of the arc provided by the rollers 10 is matched to the diameter of the electric cable 5. The radius of the arc provided by the rollers 10 is in particular at least six times the cable diameter of the electric cable 5.

The axle 11 of a penultimate roller 10 seen from an end region of the cable guide 9, which is thus arranged at an end region of the cable guide 9 in the context of the present invention, serves to the cable guide 9 can thus be pivoted about the axis 11. The axes 11 and 12 of the rollers 10 are held by walls 13 and extend into bores of the walls 13, which at the same time protrude with respect to the rollers 10 so far that a guided section of the electric cable 5 is located between the two walls 13. The walls 13 thus serve at the same time to ensure a guide of the electric cable 5. The end region of the cable guide 9, which lies opposite the pivotally mounted end region of the cable guide 9, has, at least in a wall region 13, a slot 14 which extends along the pivoting movement of the cable guide 9. In order to minimize the material required for this, the wall portion 13 initially extends arcuately in accordance with the arrangement of the rollers 10. In the end region comprising the elongated hole 14, is a portion or an extension of the wall portion 13 inwardly towards the drum as shown from. This projecting region or protruding extension comprises the oblong hole 14, which is preferably designed to be slightly arcuate and in accordance with the pivoting movement, which is the cable guide 9 is possible. A non-visible bolt, which is preferably fastened to a housing 17 and which protrudes in particular perpendicularly from the plate 2, extends into at least one oblong hole 14 and, in the case of FIG. 1, preferably at least into the lower slot 14 Bolt and a slot 14 into which the bolt extends, the pivotal movement of the cable guide 9 is limited in both directions. The bolt therefore represents a stop for the cable guide 9 in order to limit the pivoting movements of the cable guide 9.

The end portion of the cable guide 9 with the slot 14 is connected to a shift lever 15 via a pin 16 of the shift lever and another slot 22 of the cable guide 9. Each Manure 13 may have such another slot 22. Such a slot 22 extends approximately perpendicular to the slot 14 and may be located in a further extension, for example, at least substantially perpendicularly protrudes from the extension with the slot 14. Of the. Bolt 16 of the shift lever 15 extends into the further slot 22 into it. The bolt 16 can also extend viewed in both directions from the lever 15, so as to hineinzureichen in the two other slots 22 which are part of each wall 13. The shift lever 15 is thus connected to the corresponding end region of the cable guide 9 in such a way that a pivoting of the cable guide 9 results in a pivoting of the shift lever 15 and vice versa. The shift lever 15 can be pivoted about an axis 21. Preferably, the shift lever 15 is biased by a spring, not shown, which may be located for example in a housing or housing portion 17. The housing portion 17 or the housing 17 is adjacent to the shift lever 15. The housing portion 17 may be part of the housing of the shift lever 15. The spring is in particular biased so that in the case of Figure 1, the shift lever 15 can thereby be rotated clockwise. In almost unloaded state of the electric cable 5, therefore, the cable guide 9 is pivoted outwardly away from the cable drum and that due to the spring force of the spring, which may be located in the housing 17 and which is located near the end portion of the cable guide 9 with the slot 14 and which acts on this end region. A caused by the spring pivotal movement of the cable guide 9 is finally limited by the bolt, which serves as a stop.

The shift lever 15 can also serve to detect one or more positions of the cable guide 9. The positions can be detected continuously or step by step. The shift lever 15 is then part of the detector device which is capable of detecting a cable pulling force acting on the electric cable 5. The shift lever 15 can detect defined jerky movements (caused by jerky pulling on the electric cable) of the electric cable, so as to set in particular a winding of the electric cable 5 in motion. However, other devices may alternatively or additionally be provided in order to detect a jerky movement serving as a signal.

FIG. 1 shows a housing 18 in which a transmission for the motor 8 can be located. For example, on the plate 2, at least one microswitch 19 may be fastened adjacent to the end region of the cable guide 9 with the oblong hole 14, which serves to detect one or more positions of the cable guide 9. The axis 21 of the shift lever 15 may be attached directly to the plate 2. But it may also be a receiving housing 20 may be provided for the shift lever 15 and for the attachment of the axle 16. In addition, the switching means, such as the microswitch 19, on the housing housing 20 are attachable. The microswitch 19 acts together with the further extension on the pivotable end of the cable guide 9.

In the housing 20 may be provided electronics and / or electrical to detect positions of the shift lever 15, and / or control electronics to control the transport of the electric cable 5 by the electric motor 8 in response to Kabelzugkräften on the Electric cable 5 act. All of the aforementioned components of the storage device 1 may be wholly or partly made of plastic and / or metal and in any combination. Thus, it represents a preferred embodiment of the invention, when the walls 13 and / or the rollers 10 of the cable guide (9) are made of a plastic. FIG. 2 shows an enlarged detail of FIG. 1. Two microswitches 19 are now visible, which are arranged in the region of the end positions of the pivoting movements of the cable guide 9. Furthermore Figure 2 illustrates the position of the slot 22, in which the bolt 16 of the shift lever 15 extends.

As indicated by dashed lines on an example in FIG. 2, funnel-shaped recesses 25 may be present in one or both walls 13, the reason for which is to accommodate the mounting of the axles 11 and 12. At the bottom of the funnel-shaped recesses, constrictions may be present which allow engagement of the axles 11 and 12 in the bottom of each funnel-shaped recess. By providing recesses 25, the assembly of the axes is facilitated. FIG. 3 likewise shows an enlarged section, which however does not have a wall 13, so that a view into the interior is released. It will be appreciated that a bolt 16 of the shift lever 15 may extend upwardly and downwardly to reach into the respective slot 22. There is then a connection between the shift lever 15 and the cable guide 9, are particularly reliably avoided in the tilting.

According embodiment, therefore, a pivotable, provided with rollers 10 cable guide 9 is provided. The cable guide 9 leads the charging cable or electric cable 5, starting from an inner wound position to a developed position outside the vehicle.

The cable guide 9 serves to:

- Maintain a minimum bending radius when unwinding, which should always be about 7 to 10 times the cable diameter to avoid damage;

- to detect a cable traction in conjunction with a detection unit or detection device and - In particular to detect a maximum and minimum cable traction in conjunction with the detection device and switching elements.

The arrangement and a suitable number of rollers 10 in the cable guide 9 result in the rule from the minimum bending radius of the charging cable.

On one side, the cable guide 9 can be mounted pivotably by a rotation axis 11 and guided on the other side in a shift lever 15. The cable guide 9 has for connection to the shift lever 15 as shown projecting extensions. The first extension is initially approximately perpendicular to the arch shape and includes the slot 14. The second extension is approximately perpendicular from the first extension and includes the slot 22. The extensions are guided by the lever 15 and can simultaneously serve to interact with switches 19. Switch 19 or non-contact and / or continuously operating switching means are arranged in particular at the extreme positions, ie at the stop positions of the deflection of the extensions. The extreme positions basically describe the maximum and minimum cable pull. The maximum cable pulling force is detected by pivoting the cable guide 9 in a clockwise direction.

In addition to the arrangement of switches, preferably one or more microswitches 19, in particular for detecting end positions of the cable guide 9, a stepless detection of the position of the shift lever can take place, for example capacitive, inductive, optical, potentiometric, etc.

A possible functional sequence is described below.

In a starting position, the charging cable 5 is in a wound position in the vehicle. The cable guide 9 is in a middle position, that is, there is a mean cable pull in front. The middle position of the cable guide results from a force acting on the cable guide spring force and adjustable for example by the drive tension in the charging cable. The spring force acts in the embodiment shown in the figures counterclockwise and the tension of the charging cable acts in a clockwise direction, that is, the spring force.

A loading flap is opened if a charging plug of the electric cable 5 is behind a flap. The charging plug is removed. An actuating button is pressed. The motor 8 then rotates backwards, thereby releasing a clutch to the engine 8. Reverse means here that the motor is moved so that the charging cable 5 is released, that is relaxed, so that the cable pulling force changes in the direction of minimum.

The charging cable can now be pulled out manually. The battery is finally charged. Subsequently, the operation button is pressed. The motor 8 then rotates forward, whereby the clutch is actuated to the motor 8 and the motor via a gear and the clutch with a drive (for example, large gear 3) is engaged. The charging cable is now wound up. When the fully wound position is reached, the cable guide is moved to the "maximum cable pulling force" position and the motor is switched off However, there is a sufficiently high voltage or cable pulling force to keep the charging cable reliably in the desired position.

If, for example, the charging cable is blocked by an operator when it is pulled in, a maximum charging cable pulling force occurs, which is detected by means of the cable guide 9 and a microswitch 19. The motor 8 is switched off. With a first actuation of the operating The charging cable 5 is released again button and the charging cable 5 can be wound up again with a second actuation of the operating knob.

A detection of the cable tensile force can also be detected via a motor current. In a further development, the cable guide can be made of a one-piece plastic part, in which the rollers z. B. be clipped. The roles are charged in the illustrated embodiment, only in one direction.

In a further embodiment, the shift lever can be dispensed with, with the cable guide 9 acting directly on the switch or switching means,

It is also possible to work only with a microswitch 19, so that it is only detected that the charging cable 5 is under tension. An overload, for example due to excessive pulling on the charging cable 5, could in this case be realized via the motor control or an engine load detection. In this case, the microswitch 19 detects a force less than X (little or no tension on the charging cable) and a force greater than Y (the charging cable is so tight that the charging cable guide lifts off the microswitch). Reference table

1: storage facility

2: base plate

3: gear

4: circular interior

5: Electric cable

6: outer cover for changing room

7: top, side cover of the cable drum

8: electric motor

9: Cable management

10: roll : Axle for swiveling bearing of cable guide: Axle for rotatable bearing of a roller

: lateral wall of the cable duct

: Slot for stop

: Shifter

: Bolt of the shift lever

: Housing especially for spring

: Housing for gearbox of the engine

: Microswitch / tactile switching element

: Casing

: Axle for shifter

: Slot for a shift lever bolt receptacle: inner wall

: circumferential outer cover for equalization chamber: funnel-shaped recess

Claims

1. Bearing device in particular for a Elektrofa hrzeug with a by the storage facility (1) mounted or storable Elekt- roka bel (5), a Transportseinrichtu ng for transport of Elektroka lever (5) in a mounted position of the Elektroka lever (5) u and / or in an extended position of the electric cable and a cable guide (9) for guiding the electric cable (5) during transport between a stored position and a deployed position of the electric cable (5), characterized in that Cable guide (9) is bent and a portion of the electric cable (5) on the cable guide (9) is applied, wherein the bow genogen the portion of the Elektroka lever (5) preferably has a minimum bending radius, which is above six times, preferably above seven times, more preferably above the l Ox diameter of the electric cable (5) is located, and / or that the Ka belführung (9) is part of a detector device t, which is able to detect a Ka belzugkraft in particular for a control of Tra nsports the Elektroka lever (5).

2. Bearing device according to the preceding claim, characterized in that the cable guide (9) is mounted movably, in particular pivotably or displaceably.

3. Bearing device according to the preceding claim, characterized in that a spring is present, through which a bias on the cable guide (9) applying ring bar, wherein Vorspannu ng of Ka belzug force counteracts. Bearing device according to one of the preceding claims, characterized in that the spring in the region of a pivot point of the cable guide (9) is arranged.

Bearing device according to the preceding claim, characterized in that the spring is arranged at the end region of the cable guide (9), which is opposite to the pivotally mounted end region of the cable guide (9).

Bearing device according to one of the preceding claims, characterized in that one or more switching means, in particular microswitch (19), are provided which are able to detect the position of the cable guide (9).

Bearing device according to one of the preceding claims, characterized in that the cable guide (9) and in particular an end portion of the cable guide (9) is able to pivot a shift lever (15), wherein the cable guide (9) preferably by a slot (22) and a in the slot (22) reaching into the bolt (16) is connected to the shift lever (15).

Bearing device according to one of the preceding claims, characterized in that an end portion of the cable guide (9) is pivotally mounted and a stop is present, which is able to limit pivoting movements of the cable guide, the stop in particular by a slot (14) and one in the slot (14) is provided.

Bearing device according to one of the preceding claims, characterized in that the cable guide (9) comprises a plurality of rotatably mounted rollers (10) on which the electric cable (5) bears in particular during transport. Bearing device according to one of the preceding claims, characterized in that the rollers (10) on one side in the cable guide (9) can be inserted and / or latched.

Bearing device according to one of the preceding claims, characterized in that at least one wall (13) of the cable guide (9) can be used as a guide for the charging cable (5).

Bearing device according to one of the preceding claims, characterized in that an electric drive, in particular an electric motor (8) is provided, with which the electric cable (5) can be transported to its stored position.

Bearing device according to one of the preceding claims, characterized in that a rotatably mounted cable drum (6, 7, 23, 24) is provided, on which the electric cable (5) can be wound up for storage and in particular can be wound two-dimensionally, preferably a gear (3) fixed to the cable drum or is part of the cable drum, wherein the gear (3) by a gear of an electric drive (8, 18) can be rotated.