Self-propelled loading bar

Abstract

The invention relates to a loading beam (1) for a cargo space rail (3), wherein the loading beam (1) has a receiving profile (4) and at least one insertion (2, 2.1, 2.2, 2.3) arranged at the end of the receiving profile, wherein the insertion (2, 2.1, 2.2, 2.3) consists of a shoe (5) and an insertion profile (6), wherein the loading beam (1) has a self-drive (7), wherein the self-drive (7) is arranged at least sectionally in the insertion (2, 2.1, 2.2, 2.3).

Description

Technical area

[0001] The invention relates to a loading bar according to the preamble of claim 1, a drawer according to claim 14 and a method according to claim 16. State of the art

[0002] Such loading beams are already known and in use in a variety of forms and designs. For example, EP 2 433 835 A1 shows a loading beam for moving and securing in or on a rail in a cargo space, comprising a load-carrying device and a shoe running in the rail. The load is positioned on the load-carrying device. The shoe comprises a load latch, by means of which the loading beam is secured in a system bore of the rail. The shoe is designed to be movable relative to the load-carrying device.

[0003] Further reference is made to WO 2020 / 176 326 A1. This document discloses a loading bar that is arranged between two wall rails and can be moved up and down. The up and down movement is motorized, as a drive is provided, which is part of the wall rail. The drive drives a toothed belt, which in turn causes the up and down movement of the loading bar. A carriage is fixedly connected to the toothed belt, and a head of the loading bar can be suspended from the carriage.

[0004] In addition, reference is made to WO 2019 / 168 846 A1, which comprises first and second vertical rails configured to be installed on opposite walls of a cargo hold, each of the first and second vertical rails comprising a plurality of openings spaced therealong; first and second brackets each sliding along the respective first and second rails;first and second drives arranged in communication with the respective first and second rails, each of the first and second drives being operatively connected to each of the respective first and second beams by a belt drive, a cable drive, a lead screw, a hydraulic cylinder, or a pneumatic cylinder, wherein operation of each drive in a first direction causes the respective beam to slide upwardly along the respective vertical rail, and operation of each drive in an opposite second direction causes the respective beam to slide downwardly along the respective vertical rail;and a controller with user input capability, the controller selectively controlling operation of the first and second actuators to selectively raise or lower a vertical position of one or both of the first and second supports on the respective first and second rails in response to an input received from an input device. The actuator is operable to pull or release the support along the rail.

[0005] The device disclosed in US 2022 / 0080877 A1 functions in a similar way, in which a drive is also operatively connected to a lashing rail and thereby pulls up and lowers a loading beam, whereby the up and down indications are to be read in the light of proper installation in a cargo hold. Object of the invention

[0006] The object of the present invention is to provide an autonomous loading bar that can be moved up and down at least partially, and advantageously fully, automatically. It should act and react as independently and autonomously as possible. Advantageously, the loading bar according to the invention can also be used, particularly retrofitted, in existing cargo holds with pre-installed rails, such as airline rails. Solution to the task

[0007] The features of claim 1 and claims 14 and 16 lead to the solution of the problem.

[0008] Advantageous embodiments are described in the subclaims.

[0009] A loading beam according to the invention serves to be accommodated between two rails arranged in a cargo hold, hereinafter also referred to as cargo hold rails. The cargo hold rails can be designed, for example, as lashing rails or airline rails. For a more detailed illustration of an airline rail, reference is made to DE 202 18 780 U1. The cargo hold rails are generally arranged opposite one another on the interior walls of a cargo hold. The loading beam is arranged on the opposing cargo hold rails and moved up and down along the cargo hold rails. Due to the arrangement of a loading beam at a defined height within the cargo hold between the two opposing cargo hold rails, a double-decker loading system can advantageously be created, for example for trucks or vans, which in turn allows goods to be positioned in two areas arranged one above the other.This allows the entire cargo space to be optimally utilized and almost fully loaded, allowing multiple goods to be transported simultaneously. The functionality of a double-decker loading system is also described, for example, in EP 2 433 835 A1.

[0010] According to the invention, the loading bar has a receiving profile and at least one insert, advantageously two inserts. Advantageously, one of the inserts is arranged at the end of the receiving profile. At least one of the inserts has a shoe and an insert profile. According to the invention, the loading bar, advantageously at least one of the inserts, has its own drive. The own drive is advantageously arranged in the insert or within the insert such that components of the insert surround the drive at least in sections. In this context, the own drive is therefore arranged at least in sections in the insert profile of the insert.

[0011] According to one embodiment, the self-propulsion system is advantageously connected to a rail wheel in a force-transmitting manner.

[0012] According to an advantageous embodiment, the self-propulsion system is arranged at least partially internally within the insertion profile such that components of the insertion profile, in particular its walls, surround the self-propulsion system at least partially. This advantageously protects the self-propulsion system against unwanted damage or unintentional contamination, which extends the service life of the self-propulsion system overall. Furthermore, the interaction of the self-propulsion system and the rail wheel advantageously enables the loading beam to be used independently of additional drives provided in the loading space. This design allows any loading beam to be incorporated into existing loading spaces if the rail wheel is adapted to the existing freight space rail constructions in the loading space. The self-sufficient use of the loading beam according to the invention enables the most flexible use possible in different loading spaces of different vehicles.

[0013] It is further conceivable for the rail wheel to have a wheel hub and a wheel rim, with the wheel rim having alternating bulges and flat areas. The alternating bulges and flat areas formed in the circumferential direction of the wheel rim dictate how the loading beam is inserted into the cargo hold rail. Cargo hold rails commonly used in practice in the form of airline rails generally have a U-shaped profile part, with a profile strip sitting on each of the two free ends of the U-shaped profile part, which are spaced from each other by a longitudinal slot. This longitudinal slot has a width. Troughs are formed in the opposite edges of the profile strips, which delimit the longitudinal slot, with two opposite troughs together forming a locking recess. The locking recess has a diameter.According to the present invention, the locking recess serves to accommodate positioning elements.

[0014] In this way, the rail wheel slides into the cargo hold rail and can then be moved up and down, particularly vertically within the cargo hold, both up and down. Depending on the direction in which the rail wheel is rotated by its own drive, the loading beam moves up or down. It is conceivable for the rail wheel to have at least one, and advantageously a plurality of, wheel spokes.

[0015] The self-propelled drive comprises a transmission with a belt wheel or pulley, wherein a power transmission element, such as a belt, in particular a toothed belt, encompasses the belt wheel or pulley and a running surface of the rail wheel, in particular a running surface of the wheel rim of the rail wheel. In this context, "encompassed" also means that a portion of the running surface is always encompassed by the power transmission element. Specifically, this always means the portion of the running surface that is currently in positive and non-positive engagement with the power transmission element. The terms pulley and belt wheel are to be interpreted as synonyms in the application text.

[0016] Instead of a toothed belt, a chain or a motor mounted directly on the rail wheel or similar can be used as the power transmission element. The advantage of mounting the drive directly on the rail wheel is that, for example, the power transmission element and a transmission gear are omitted. Power can also be transmitted directly via, for example, the gear or a plurality of gears.

[0017] According to one embodiment, the pulley has a smaller radius than the rail wheel. Advantageously, the power of the self-propelled drive is transmitted to the rail wheel via the pulley. The power transmission element can vary in length and width in order to be adapted to different sized rail wheels or drive gears. The power transmission element is durable, flexible, and slip-free. Providing it on the running surface of the rail wheel enables the largest possible transmission ratio from the pulley to the rail wheel. The question of the transmission ratio plays a subordinate role and is within the domain of expert knowledge. Depending on the requirements for the load-bearing capacity of the loading beam, the expert can provide a more powerful or weaker drive and, by providing a specific transmission ratio, can make additional flexible adjustments.

[0018] According to one embodiment, the rail wheel is arranged at least partially in the shoe such that components of the shoe at least partially surround the rail wheel. Consequently, the rail wheel is arranged at least partially in the shoe of the insert.

[0019] The shoe is arranged at least partially pivotably on the insertion profile. Consequently, the shoe is attached at least partially pivotably to the insertion profile, which advantageously prevents the loading beam from tilting. Tilting can occur, for example, if the loading beam is moved into such an inclined load securing position that one of the shoes of the loading beam is, for example, unintentionally inserted much deeper or higher into one cargo hold rail than the opposite shoe of the loading beam is inserted into the opposite cargo hold rail. In such a case, however, the at least partially pivotable attachment of the shoe to the insertion profile advantageously prevents the shoe from immediately jamming in the cargo hold rail and ensures a certain amount of play when moving the individual inserts.

[0020] The charging bar has a power charging point. In one embodiment, the power charging point is located in the shoe. The power charging point is designed such that, upon contact with a contact charging point, it supplies a rechargeable battery (hereinafter also referred to as a battery) with energy. The battery is intended to provide electrical energy, and in one possible embodiment, the shoe has the power charging point for charging the battery.

[0021] The battery is advantageously arranged at least in sections in the receiving profile of the charging bar or in a slot of the charging bar.

[0022] If a single battery is present, this battery advantageously supplies both slots, in particular both self-drives, which are positioned at least partially in the respective slots, with energy / electricity. It is also conceivable for each slot to have its own battery and thus the charging bar to have two batteries. In this case, each slot, in particular each self-drive of each slot of the charging bar, draws the required power from its own battery. This means that each battery has its own charging point. The number of charging points therefore corresponds to the number of batteries. However, it is also possible for two or more batteries to be charged via a single charging point. Appropriate cabling would only be required. The battery can be charged alternatively or additionally using inductive power transmission.

[0023] The contact charging point is located, for example, on an interior roof of the cargo hold, hereinafter referred to as the cargo hold ceiling, and advantageously above the cargo hold rail or at a distal end of the cargo hold rail in the upper region of the cargo hold, thus near a cargo hold ceiling. When the loading bar is not needed, it moves upwards to an end position on the cargo hold ceiling, whereby the power charging point of the shoe of the loading bar at least partially and at least temporarily contacts the contact charging point of the cargo hold or the cargo hold rail. This advantageously enables the charging of at least one of the charging bar's batteries when the loading bar is not in use, i.e. when the loading bar is in a non-use position, also referred to as the rest position. The same applies if the at least one battery or one of at least two batteries is discharged and needs to be recharged accordingly.The current flow begins when the current charging point comes into contact with the contact charging point.

[0024] It is further conceivable that the shoe has at least one locking bolt to secure a desired position of the loading bar on the cargo hold rail.

[0025] The locking bolt is regularly activated, i.e. extended, when the loading beam is not moving, i.e. in a positioned, immobile state. It is, however, retracted when the loading beam is moving, i.e. is moved along the cargo hold rails. When the locking bolt is extended, it moves into a force-locking / positive-locking receptacle on the cargo hold rail to secure the desired position of the loading beam on the cargo hold rail. This relieves the rail wheel, especially when the loading beam is loaded. Advantageously, at least part of the weight of the load, and particularly advantageously the entire weight, is taken up by the locking bolt, at least temporarily. It is also conceivable that the rail wheel is decoupled from the propulsion with a relief movement, at least temporarily after the locking bolt has been extended.The shape and size of the locking bolt depend on the force / form-fitting mount on the cargo hold rail.

[0026] The locking bolt is advantageously extended when the loading beam has reached the desired position on the cargo hold rail. This means when the loading beam has moved or has moved into its loading or usage position. When the locking bolt is extended, for example, a spring-loaded bolt is released electronically or electromechanically, and when retracted, it is retracted electronically or electromechanically. Furthermore, the locking bolt is extended and retracted by a motor directly in the shoe. Alternatively, it would also be conceivable to place a central motor in the loading beam and move the locking bolts using a Bowden cable. One advantage would be the use of a motor, and this would be better protected from external influences. In another embodiment, the bolt is moved directly by an electric motor using a threaded spindle. This does not require any spring bearings, as described above.The advantage of this embodiment is that a more controlled movement of the locking bolt can be achieved.

[0027] When the locking bolt is extended, it is retracted at least partially into a recess in the cargo hold rail, thereby securing the loading beam to the cargo hold rail. Positioning the bolt in the recess in the cargo hold rail advantageously relieves the load on the previously used rail wheel and allows the loading beam to be loaded with the appropriate goods. It is also conceivable that the locking bolt is extended upon reaching the end position, i.e., the rest position of the loading beam, for example, to charge the battery, and thus engages at least partially in the recess.

[0028] Furthermore, the approach of the loading bar to the contact charging point serves as a reference point for the position of at least one slot, advantageously both slots of the loading bar. In this context, a reference point for the position means that a position is determined when the loading bar approaches the contact charging point. In one exemplary embodiment, the contact charging point is arranged close to the cargo hold ceiling. A control system receives the information that the loading bar has reached the position close to the cargo hold ceiling upon reaching the contact charging point. If, for example, the loading bar is inadvertently not leveled substantially horizontally with respect to the cargo hold floor or ceiling, it is possible to raise the loading bar at both ends up to the contact charging point so that the reference point, also known as the starting position point, is approached and established for both slots of the loading bar.This advantageously levels the charging bar essentially horizontally again. This means that as soon as, for example, in the case of two racks, each with a contact charging point, both racks of the charging bar have reached the respective contact charging point, the charging bar has reached the starting point or reference point. Upon reaching the reference point, it is possible for current to flow through the current charging point. However, it is also possible for the reference point to be designed independently of the position of the contact charging point, so that the charging bar can also be moved downwards towards the cargo hold floor to reach the reference point or the starting point or the reference position. It is also conceivable for the contact charging point to be designed at the bottom of the cargo hold rail.Accordingly, it is conceivable that the reference point and the contact charging point are both arranged in the upper region of the cargo hold rail, in particular in the region of the cargo hold ceiling or in the lower region of the cargo hold rail, in particular in the region of the cargo hold floor, or that the reference point is formed at a distal end or end region of the cargo hold rail, while the contact charging point is arranged at another distal end or end region of the cargo hold rail.

[0029] To ensure the functionality of the loading beam with regard to carrying loads and goods, such as pallets, to form a double-decker system within the cargo hold, it is only necessary that the loading beam assumes a substantially horizontal position within the cargo hold with regard to the cargo hold floor or the cargo hold ceiling between the respective cargo hold rails. In the context of the invention, substantially horizontal means that, for example, with appropriate spacing of the locking recesses in the cargo hold rail milling, the loading beam can have a height difference of 25 mm between one end of the loading beam and the other end of the loading beam. With a loading beam length of 2450 mm, this would correspond to an inclination of approximately 0.6°. Such an inclination would still be recognized as substantially horizontal within the scope of use as a double-decker loading beam.Even inclinations between 0.1° and 0.6° or more than 0.6°, especially 0.7° or 0.8°, can still be considered essentially horizontal. This depends on the arrangement, particularly the spacing of the locking recesses used in the cargo hold rail.

[0030] It is also possible to position the loading beam at an angle between the respective cargo hold rails. Starting from its reference point, one loading beam insert is moved further or closer up or down along the cargo hold rail than the other insert of the same loading beam. This inclined position of the loading beam is advantageous for securing the load, particularly to prevent it from accidentally slipping in or against the direction of travel.

[0031] The individual steps are carried out by the control system. The receiving profile and / or the drawer have the control system for this purpose. In the working position, the control system activates the self-drive, detects the reference point and extends and retracts the locking bolt and / or detects the position of the drawer. The torque of the self-drive is also transmitted to the control system, for example via a sensor, in order to detect when the loading bar hits an obstacle. The sensor is not absolutely necessary. It is also possible, for example, that the torque increases abnormally when the loading bar hits an obstacle. This increase in torque is detected by the control system, as it also leads to an increase in power consumption. Appropriate limit values ​​can be set for this.It is also conceivable that sensor data could be transmitted from below the loading bar, for example, to prevent the loading bar from injuring or damaging people or goods located below. This could involve, for example, LiDAR sensor monitoring. Other sensor monitoring methods are also conceivable.

[0032] The control system is preferably radio-controlled, but can also be controlled via cable or a display on the loading bar. This allows the loading bar to be controlled via a radio device. Wi-Fi, Bluetooth, and other technologies are possible radio technologies. It is also conceivable that wired information transmission could be used. It is essential that a user can remotely raise and lower the loading bar by operating the control system, and lock it if necessary. This also advantageously allows the drawers to be unlocked to remove the loading bar from the cargo hold.

[0033] In one embodiment, the battery is located in the receiving profile. This means that the battery supplies power to the respective end shoes and their own drives. In another embodiment, the battery is located in the slot. This, in turn, means that the shoe can be used independently of the receiving profile. However, this would require an additional control system in the shoe, which synchronizes with the control system in the receiving profile.

[0034] The shoe has at least two horizontally spaced-apart support wings, wherein the support wings slide on a surface of the cargo hold rail and are vertically interrupted from one another. In this context, "horizontal" means that, for proper installation of the cargo hold rail on the cargo hold wall between the cargo hold floor and the cargo hold ceiling, a parallel run to the cargo hold floor and the cargo hold ceiling is ensured. "Vertical," on the other hand, means an extension from the cargo hold floor to the cargo hold ceiling. The rail wheel is arranged at least partially between the two support wings and engages in a locking recess in the cargo hold rail.

[0035] Additionally, it is possible to retrofit a charging bar according to the state of the art by inserting the insert, as described above, into another prior art mounting profile, thus also providing the charging bar with the features according to the invention. Depending on the situation, it is important to consider whether the insert also requires its own battery or control system. Character description

[0036] Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings, which show: Fig. 1 is a side view of an embodiment of a loading bar according to the present invention; Fig. 2 a side view of the embodiment of a loading bar according to Fig. 1 with an open recording profile; Fig. 3 a plan view of an insert of the embodiment of a loading bar according to Fig. 1; Fig. 4 a sectional view of the insert along the line IV - IV in Fig. 3; Fig. 5 a perspective view of the insert according to Fig. 3 in the position of use in a cargo hold rail; Fig. 6 a plan view of the insert in the cargo hold rail according to Fig. 5; Fig. 7 an exploded view of another insert according to the invention; and Fig. 8 an exploded view of another insert according to the invention. Example

[0037] In the Fig. 1 and Fig. 2 shows a loading bar 1 for use in a cargo hold rail 3 not shown here, as shown in the Fig. 5 and Fig. 6. The loading bar 1 has a receiving profile 4, wherein the receiving profile 4 at each end receives an insert 2 or 2.1, at least in sections.

[0038] Insert 2 and Insert 2.1 are advantageously structured identically. Therefore, the statements made below for Insert 2 also apply to Insert 2.1. Repetition is therefore omitted.

[0039] The insert 2 consists of a shoe 5 and an insert profile 6, as shown in the Fig. 3 to 6. The loading bar 1, in particular the drawer 2, has its own drive 7, wherein the own drive 7 is arranged at least partially and advantageously completely in the drawer 2. The own drive 7 is connected to a rail wheel 8 in a force-transmitting manner, wherein the own drive 7 has a pulley 14 for this purpose, which is connected to a running surface 16 of the rail wheel 8 via a force transmission element 15, such as in particular a belt, in particular a toothed belt.

[0040] The rail wheel 8, in turn, has a wheel hub 9, wheel spokes 10, and a wheel rim 11. The wheel rim 11 has alternating, partially spherical protrusions 12 projecting at the edges of the wheel rim 11, which are separated from one another by flat areas 13. The alternating protrusions 12 and flat areas 13 dictate how the loading beam 1 can be inserted into a longitudinal slot 23 in the cargo hold rail 3. The protrusions 12 correspond in shape to approximately circular locking recesses 21 in the cargo hold rail 3 and can thus engage therein, with the flat areas 13 in turn retracting into narrow areas 24 located between the circular locking recesses 21. In this way, the rail wheel 8 slides into the cargo hold rail 3 at a suitable position and can then be moved up and down. Accordingly, only the bulges 12 slide in.The flat areas 13 of the wheel rim 11 are advantageously located within the cargo space rail 3, in particular in its longitudinal slot 23.

[0041] Furthermore, the rail wheel 8 is held in the shoe 5 via the wheel hub 9. At the same time, the shoe 5 is arranged at least partially pivotably on the insertion profile 6 via a bolt 25. The bolt 25 advantageously extends through the wheel hub 9 and thus connects the rail wheel 8, shoe 5, and insertion profile 6 to one another.

[0042] The shoe 5 is provided at one end with a power charging point 17. The power charging point 17, in turn, can be connected to a contact charging point (not shown in detail). The power charging point 17 is designed such that, upon contact with the contact charging point, it charges a battery 18 arranged in the receiving profile 4 and / or the slot 2 of the charging bar 1 (see Fig. 2) is supplied with energy. The contact charging point is located, for example, on a cargo hold ceiling (not shown in detail) of a cargo hold (also not shown in detail), generally above the cargo hold rail 3. When the charging bar 1 is not needed, it moves to a final position at the top of the cargo hold ceiling, thus enabling at least one battery 18 to be charged while the charging bar 1 is not in use. The same applies if the battery 18 is discharged and needs to be recharged accordingly. The current flow begins when the power charging point 17 comes into contact with the contact charging point.

[0043] The shoe 5 also has a locking pin 19 at its other end. The locking pin 19 is extended when the loading beam 1 has reached the desired position on the cargo hold rail 3. To do so, the locking pin 19 is moved into the corresponding circular recess 21 of the cargo hold rail 3, thereby relieving the load on the previously responsible rail wheel 8 and allowing the loading beam to be loaded with the appropriate goods. The same applies when the end position for charging the battery 18 is reached.

[0044] Furthermore, the shoe 5 is provided with two horizontally spaced-apart support wings 22, which rest on a surface 26 of the cargo hold rail 3 in the position of use or can slide along it when the loading beam 1 is moved. Vertically, the two support wings 22 are interrupted essentially in the area of ​​the rail wheel 8 protruding from the shoe 5. At the same time, the support wings 22 form a channel slider 27, which is guided in the longitudinal slot 23 of the cargo hold rail 3 and prevents the loading beam 1 from accidentally falling out of the cargo hold rail 3. The channel slider 27 guides the loading beam 1 or the shoe 5 in the cargo hold rail 3 during the raising or lowering of the loading beam 1. The rail wheel 8 is arranged at least in sections between the support wings 22.

[0045] The receiving profile 4 and / or the insert 2 can have a control system 20 (see Fig. 2), wherein the control system 20, in the working position, controls the self-propulsion system 7 and extends and retracts the locking bolt 19. The control system 20 is preferably radio-controlled. The control system 20 preferably serves to move the loading bar 1, battery management, and the movement of the locking bolt 19. Furthermore, the control system 20 advantageously ensures various safety functions, communication with the operator, a status display for the function of the loading bar 1, and / or, for example, the transmission of control commands, etc.

[0046] Referring to the Fig. 1 to 6, the functioning of the loading bar 1 according to the invention is explained as follows: The loading beam 1 is inserted into the longitudinal slot 23 of the respective cargo hold rail 3 on an interior wall of a vehicle by means of its inserts 2 and 2.1 or by means of its shoes 5, and in particular by means of the grooved slider 27, and is held in position in the cargo hold rail 3 when the rail wheel 8 is not driven. The support wings 22 rest on the surface 26 of the cargo hold rail 3. Both the grooved slider 27 and the support wings 22 prevent the shoe 5 of the loading beam 1 from falling out of the cargo hold rail 3.

[0047] In order to move the loading beam 1 up or down in the cargo hold rail 3, the rail wheel 8 is driven via the pulley 14 and the power transmission element 15. Depending on the direction in which the rail wheel 8 is rotated by the self-drive 7, the shoe 5 of the loading beam 1 moves up or down. Since the shoe 5 is attached to the insertion profile 6 in such a way that it can be pivoted at least partially, tilting of the loading beam 1 is prevented. If the loading beam 1 is used to secure the load at the rear, an inclined position of the loading beam is also advantageously possible without tilting the loading beam within the cargo hold rails.

[0048] When the loading beam 1 has reached the desired position for receiving goods, the locking bolt 19 is first released and moves into a respective circular locking recess 21. Subsequently, the rail wheel 8 can be rotated in the opposite direction to the last direction traveled until the rail wheel 8 is relieved of pressure, so that the entire weight of the goods rests on the locking bolt 19 and not on the rail wheel 8. In this context, the running wheel 1 is rotated until the spherical protrusions 12 are no longer in contact with the locking recess 21 of the cargo hold rail 3. Ideally, the spherical protrusion 12 is then centrally located in the locking recess 21.

[0049] The shoe 5 has a power charging point 17 at one end. The power charging point 17 is designed such that it supplies a battery 18 with energy upon contact with a contact charging point (not shown in detail). When the charging bar 1 is not needed, it moves to a final position at the top of the cargo compartment ceiling, thus enabling the battery 18 to be charged while the charging bar 1 is not in use. The same applies if the battery 18 is discharged and needs to be recharged accordingly. The current flow begins when the power charging point 17 makes contact with the contact charging point.

[0050] The individual steps are performed by the control system 20, which is controlled wirelessly. The control system 20 is preferably wirelessly controlled, but can also be controlled via cable or a display on the loading bar 1. This allows the loading bar 1 to be controlled wirelessly. WLAN, Bluetooth, and other technologies are possible wireless technologies. It is also conceivable that wired information transmission could be implemented.

[0051] For the Fig. 7 the provisions of the Fig. 1 to 6, as long as they do not contradict what is shown. In particular, the above statements also apply to the Fig. 7, if identical reference symbols were used.

[0052] Fig. 7 shows an exploded view of an embodiment according to the invention, in which the self-drive 7 is at least partially arranged in the insert 2.2. The self-drive 7 transmits the drive force to a spur gear 8.1 via a universal joint 31. In this case, an inner shoe 29 is arranged in a shoe 5.1 in the position of use. The spur gear 8.1, in turn, passes through the inner shoe 29 with the universal joint 31. The side walls 30.1 and 30.2 connect the insert 2.2 to the shoe 5.1. In this case, in the position of use, the spur gear 8.1 is arranged in the shoe 5.1 and near the inner shoe 29. The shoe 5.1 has a rack groove 32. The inner shoe 29 has a rack groove 32.1. In the position of use, when the inner shoe 29 is arranged in the shoe 5.1, the rack grooves 32 and 32.1 complement each other to form a single channel that at least partially surrounds a rack 28. In this embodiment, the rack 28 is part of the cargo compartment rail 3.The rack 28 is arranged on the side of the cargo hold rail 3 facing the shoe 5.1 and positioned such that, in the position of use, it retracts into the channel formed by the rack grooves 32 and 32.1. By actuating the drive 7 and the flexibility of the universal joint 31 and the shoe 5.1 and inner shoe 29 arranged with play relative to one another, it is possible for the loading bar 1 with the insert 2.2 shown here to be moved vertically along the cargo hold rail 3. The loading bar 1, shown here at least only in part, is designed such that, in this exemplary embodiment, a rack 28 arranged on the cargo hold rail 3 is at least partially enclosed in a position of use, wherein the spur gear 8.1 is arranged on the rack 28 so as to be vertically movable.

[0053] For the Fig. 8 apply the provisions in the Fig. 1 to 6, as long as they do not contradict what is shown. In particular, the above statements also apply to the Fig. 8, if identical reference symbols were used.

[0054] Fig. Figure 8 shows an exploded view of an embodiment according to the invention, in which the self-propelled drive 7 is at least partially arranged in the insert 2.3. The self-propelled drive 7 transmits the drive force to a sprocket 8.2 via a drive pinion 34. A chain 33 is provided, which can be designed as part of the cargo hold rail 3. The chain 33 has enough play that it runs in a shoe 5.2 in the position of use. In the shoe 5.2, the sprocket 8.2 engages the chain 33. The chain 33 is immovably connected to the rail at least at one distal end. The sprocket 8.2 is driven directly or indirectly by the drive pinion 34. The insert 2.3 slides vertically up or down with the aid of the sprocket 8.2, which can be moved along the chain 33. In this embodiment, the chain 33 is part of the cargo hold rail 3.The chain 33 is arranged in the longitudinal slot 23 of the cargo compartment rail 3.

[0055] Furthermore, in the embodiments according to Fig. 7 and Fig. 8, each shoe 5.1 and 5.2 is provided with two horizontally spaced-apart support wings 22, which, in the position of use, rest on a surface 26 of the cargo hold rail 3 or can slide along it when the loading beam 1 is moved. Vertically, the two support wings 22 are interrupted essentially in the area of ​​the rail wheel 8.1 or 8.2 protruding from the shoe 5.1 or 5.2. At the same time, the support wings 22 form a channel slider 27, which is guided in the longitudinal slot 23 of the cargo hold rail 3 and prevents the loading beam 1 from accidentally falling out of the cargo hold rail 3. The channel slider 27 guides the loading beam 1 or the shoe 5.1 or 5.2 in the cargo hold rail 3 during the raising or lowering of the loading beam 1.

[0056] The Fig. 7 and Fig. 8 also have locking bolts not shown here. The above statements regarding the locking bolt 19 also apply to these embodiments. The locking bolts not described in detail here in the embodiments of Fig. 7 and Fig. 8 also serve to secure the loading beam 1 in a desired position on the respective cargo compartment rail 3.

[0057] The Fig. 7 and Fig.The embodiments shown in Figure 8 also include a control system not shown here. This control system also serves to move the loading bar 1, manage the battery, and move the locking bolts (not shown in detail here). Furthermore, the control system ensures safety functions, communication with the operator, status display for the function of the loading bar 1, and, for example, the transmission of control commands, etc.

[0058] The individual steps of the movement of the loading bar 1, which has two shoes 2.2 or two shoes 2.3, are performed by the control system, which is controlled wirelessly. The control system is radio-controlled, but can also be controlled via cable or a display on the loading bar 1. This allows the loading bar 1 to be controlled wirelessly. WLAN, Bluetooth, and other technologies are possible radio technologies. Wired information transmission is also conceivable. List of reference symbols 1 loading bar 2.1, 2.2, 2.3 Insert 3 Cargo rail 4 Recording profile 5, 5.1, 5.2 shoe 6 Insert profile 7 Self-propelled 8, 8.1, 8.2 Rail wheel 9 Wheel hub 10 wheel oak 11 Wheel rim 12 bulge 13 Flat area 14 pulley 15 Power transmission element 16 Tread 17 charging stations 18 battery 19 locking bolts 20 Control system 21 locking recesses 22 support wings 23 Longitudinal slot 24 narrow area 25 bolts 26 Surface 27 gutter gliders 28 rack 29 inner shoe 30.1, 30.2 sidewall 31 Cardan joint 32, 32.1 Rack and pinion groove 33 Chain 34 drive pinions QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] EP 2 433 835 A1 [0002, 0009] WO 2020 / 176 326 A1

[0003] WO 2019 / 168 846 A1

[0004] US 2022 / 0080877 A1

[0005] DE 202 18 780 U1

[0009]

Claims

[1] Loading beam (1) for a cargo hold rail (3), wherein the loading beam (1) has a receiving profile (4) and at least one insert (2, 2.1, 2.2, 2.3) arranged at the end of the receiving profile, wherein the insert (2, 2.1, 2.2, 2.3) consists of a shoe (5) and an insertion profile (6), characterized by that the loading bar (1) has at least one self-drive (7), wherein the self-drive (7) is arranged at least in sections in the insert (2, 2.1, 2.2, 2.3). [2] Loading bar (1) according to claim 1, characterized by that the self-drive (7) is connected to a rail wheel (8) in a force-transmitting manner. [3] Loading bar (1) according to claim 2, characterized by that the rail wheel (8) has a wheel hub (9) and a wheel rim (11), wherein the wheel rim (11) has alternating bulges (12) and flat areas (13). [4] Loading bar (1) according to claim 2 or 3, characterized bythat the self-drive (7) has a pulley (14), wherein a power transmission element (15) comprises the pulley (14) and a running surface (16) of the rail wheel (8). [5] Loading bar (1) according to one of the preceding claims, characterized by that the self-drive (7) is arranged at least in sections in the insertion profile (6) of the insert (2, 2.1). [6] Loading bar (1) according to one of the preceding claims 2 to 5, characterized by that the rail wheel (8) is arranged at least in sections in the shoe (5) of the insert (2, 2.1). [7] Loading bar (1) according to one of the preceding claims, characterized by that the shoe (5) is arranged at least partially pivotably on the insertion profile (6). [8] Loading bar (1) according to one of the preceding claims, characterized by that a battery (18) is provided for providing electrical energy, wherein the shoe (5) has a power charging point (17) for charging the battery (18). [9] Loading bar (1) according to one of the preceding claims, characterized by that the shoe (5) has at least one locking bolt (19) for securing a desired position of the loading beam (1) on the cargo space rail (3). [10] Loading bar (1) according to claim 9 characterized by that the loading bar (1) has a control system (20), wherein the control system (20) controls at least the self-drive (7), detects the reference point and / or extends and retracts the locking bolt (19) and / or determines a position of the insert (2, 2.1). [11] Loading bar (1) according to one of the preceding claims, characterized by that the shoe (5) has at least two support wings (22) spaced horizontally from one another, wherein the support wings (22) slide on a surface of the cargo space rail (3), wherein the rail wheel (8) is arranged between the two support wings (22) and engages in a longitudinal slot (23) of the cargo space rail (3). [12] Loading bar (1) according to claim 1, characterized by that the self-drive (7) is connected to a spur gear (8.1) in a force-transmitting manner by a cardan joint (31), wherein the shoe (5.1) has an inner shoe (29) in which the spur gear (8.1) is received, wherein the shoe (5.1) and the inner shoe (29) each form a rack groove (32, 32.1). [13] Loading bar (1) according to claim 1, characterized by in that the self-drive (7) is connected to a chain wheel (8.2) via a drive pinion (34) in a force-transmitting manner, wherein a chain (33) is accommodated in the shoe (5.2) in a manner that allows it to pass through, and the chain wheel (8.2) engages in the chain (33) in a position of use, wherein the chain wheel (8.2) is rotatably arranged in the shoe (5.2). [14] Insert (2, 2.1, 2.2, 2.3) for producing a loading bar according to claims 1 to 13 for insertion into a receiving profile (4), characterized bya self-propelled unit (7) with a battery (18) and a control system (20) for retrofitting loading beams. [15] Insert (2, 2.1, 2.2, 2.3) according to claim 14, characterized by that the control system (20) is communicatively connected to a further control system of a further plug-in unit (2, 2.1, 2.2, 2.3). [16] Method for moving a loading bar (1) according to one of claims 1 to 13 from a rest position to a loading position, comprising at least the following steps: - activating the control system (20); wherein the control system (20) carries out at least the following steps: - the loading bar (1) is moved vertically up or down on both sides in the respective cargo space rails (3) and locked or unlocked. [17] Method according to claim 16, characterized by following steps: - as soon as the loading bar (1) reaches a desired position, a locking bolt (19) is released and moves into a respective recess (21) in the cargo space rail (3); - To move the loading bar (1), the locking bolts (19) are pulled out of the respective locking recesses (21) of the cargo space rails (3) and the drive (7) drives the respective rail wheel (8) to cause the loading bar (1) to move in the vertical direction. [18] Method according to claim 16 or 17, characterized by that the loading bar (1) is inserted into the respective cargo hold rails (3) by means of two inserts (2, 2.1, 2.2).

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