Transport trolley for a traction battery

Abstract

The invention relates to a transport trolley for a traction battery of an electrically powered vehicle. According to the invention, the transport trolley (1) has a connecting device (41) at a front end (VE) of the transport trolley (1), which is designed and / or suitable for the transport trolley (1) to be brought into a detachable positive connection with the vehicle (T) by means of the connecting device (41) by forming a coupling arrangement.

Description

[0001] The invention relates to a transport trolley according to the preamble of claim 1 and according to the preamble of claim 10.

[0002] The traction battery of an electric vehicle, such as an electric tractor, is removed from the tractor for charging, placed on a transport cart, and then moved to a charging station. When placing the battery on the cart, the cart can accidentally roll away, causing the battery to fall off. The battery can also fall off the cart during transport. Therefore, handling the traction battery using the cart is complicated and can lead to damage.

[0003] A transport wagon of this type is known from DE 30 17 129 A1.

[0004] One object of the invention is to provide a transport trolley with which the handling of the traction battery can be carried out safely and comfortably.

[0005] This problem is solved by the features of the independent claims. Preferred embodiments of the invention are disclosed in the dependent claims.

[0006] The invention proposes a transport trolley for a traction battery of an electrically powered vehicle. The invention provides that the transport trolley has a connecting device at its front end, which is designed and / or suitable for allowing the transport trolley to be connected to the vehicle in a detachable positive-locking connection, preferably to enable the transfer of the traction battery from the electrically powered vehicle to the transport trolley or vice versa while the positive-locking connection is in place. The positive-locking connection prevents the transport trolley from accidentally rolling away during the transfer of the traction battery from the vehicle to the transport trolley. This prevents the traction battery from falling and makes handling the traction battery using the transport trolley safe and convenient.

[0007] In order to make the transport cart as mobile as possible and adaptable to different vehicle types and charging stations, an exemplary embodiment provides that the transport cart has a chassis and a lifting device, preferably a scissor linkage, and a sliding unit, preferably a roller conveyor, for receiving the traction battery, wherein it is provided that the sliding unit can be adjusted along a vertical axis of the transport cart relative to the chassis by actuating the lifting device.

[0008] In order to be able to move the transport cart comfortably towards the electrically powered vehicle, it is preferably provided that the transport cart has a guide device which, with a viewing direction parallel to a negative longitudinal axis direction of a longitudinal axis of the transport cart, is arranged in front of the shifting unit, wherein it is preferably provided that the transport cart can be oriented in the correct position and / or orientation to the electrically powered vehicle by means of the guide device.

[0009] In order to manufacture the guide device in a mechanically robust and cost-effective manner, an exemplary embodiment provides that the guide device has a first guide fork and a second guide fork, wherein each of the guide forks has a receiving recess that is open in the positive longitudinal axis direction of the longitudinal axis of the transport carriage, and wherein it is preferably provided that the guide forks are designed and / or suitable for receiving a coupling cross member of the electrically operated vehicle, which preferably extends parallel to a transverse axis of the transport carriage, in the receiving recesses.

[0010] In order to manufacture the connecting device in a mechanically robust and cost-effective manner, the invention provides that the connecting device has a first connecting pawl and a second connecting pawl, wherein the connecting device is designed and / or suitable so that, by actuating a connecting actuating lever of the connecting device, which is mechanically connected to the connecting pawls via a Bowden cable of the connecting device, the first connecting pawl and the second connecting pawl can be jointly moved from a closed state to an open state.Preferably, the connecting pawls are geometrically designed such that, as the transport cart approaches the vehicle, preferably the tractor or loading platform, the connecting pawls are automatically lifted from the coupling crossbar by means of an angled locking lug. As the transport cart continues to approach the vehicle, they then automatically engage with the vehicle's coupling crossbar and / or automatically engage behind it. When the transport cart is released from the vehicle or loading platform, the connecting lever can be actuated, allowing the first and second connecting pawls to be moved together from a closed to an open position via the Bowden cable. This releases the transport cart from the positive connection to the vehicle, allowing it to be moved away. This simplifies the docking process, as timing is no longer a concern.

[0011] It is preferably provided that, particularly in the coupling arrangement, in the closed state of the connecting pawls, the coupling cross member is positively engaged with the connecting pawls and / or the coupling cross member is positively engaged behind the connecting pawls, and / or that in the open state of the connecting pawls the coupling cross member can be inserted into the receiving recesses without interference contour and can be designed without interference contour.

[0012] In order to make the connecting pawls mechanically easy to operate simultaneously, the invention provides that the first connecting pawl and the second connecting pawl are coupled to each other via a linkage, preferably extending parallel to a transverse axis of the transport carriage, and / or preferably pivoting the first connecting pawl and the second connecting pawl together about a pivot axis from the closed state of the connecting pawls to the open state of the connecting pawls and vice versa.

[0013] In order to reliably hold the traction battery, which is temporarily located on the transport carriage, on the sliding unit during transport, an exemplary embodiment provides that the transport carriage has a holding device which has a first holding pawl and a second holding pawl, wherein it is provided that the holding device is designed and / or is designed so that, by actuating a holding actuation lever of the holding device, which is mechanically connected to the holding pawls via a Bowden cable of the holding device, the first holding pawl and the second holding pawl can be jointly transferred from a holding state to a release state.

[0014] In order to ensure interference-free movement of the traction battery on the sliding unit, a preferred embodiment provides that the first retaining pawl and the second retaining pawl, in the holding state, project beyond the sliding unit, preferably at least partially, in the positive vertical axis direction of the vertical axis of the transport carriage, and / or that, in the released state of the first retaining pawl and the second retaining pawl, the sliding unit is not projected beyond by the first retaining pawl in the positive vertical axis direction of the vertical axis of the transport carriage, nor is it projected beyond by the second retaining pawl in the positive vertical axis direction of the vertical axis of the transport carriage.

[0015] To prevent accidental detachment of the traction battery on the sliding unit while the vehicle is not yet positively connected to the transport carriage, an exemplary embodiment provides that the transport carriage has a locking device, wherein the locking device comprises a first locking angle, a first locking linkage, and a first locking pawl, and wherein the first locking angle is mechanically connected to the first locking pawl via the first locking linkage, preferably wherein the first locking angle is pivotably arranged on an element of the transport carriage in the area of ​​the first guide fork such that the first locking angle is in its released state when the coupling crossbar is fully inserted into the receiving recess bounded by the first guide fork, and / or wherein preferablythat the first locking angle is pivotably arranged in the area of ​​the first guide fork on an element of the transport carriage such that the first locking angle is in its locked state when the coupling crossbar is not inserted into the receiving recess limited by the first guide fork.

[0016] In order to enable the locking and releasing of the first retaining pawl in a structurally simple manner, an exemplary embodiment provides that the first locking pawl, in its locked state, bears against the first retaining pawl in such a way that the first retaining pawl is held in its holding state and / or the first locking pawl, in its locked state, bears against the first retaining pawl in such a way that the first retaining pawl, preferably also by actuating the holding-actuating lever, cannot be adjusted from its holding state to its released state.

[0017] The invention further proposes a transport carriage for a traction battery of an electrically powered vehicle, wherein the transport carriage has a connecting device at a front end of the transport carriage which is designed and / or suitable for bringing the transport carriage into a detachable positive-locking connection with the vehicle by means of the connecting device by forming a coupling arrangement, wherein the transport carriage has a guide device which, with a viewing direction parallel to a negative longitudinal axis direction of a longitudinal axis of the transport carriage, is arranged in front of the displacement unit, wherein the guide device has a first guide fork and a second guide fork, and wherein it is provided that each of the guide forks has a receiving recess which is open in the positive longitudinal axis direction of the longitudinal axis of the transport carriage, bounding it outwards.

[0018] The following are descriptions of embodiments of the invention with reference to the accompanying figures.

[0019] They show: Fig. 1 in a perspective view a transport trolley for a traction battery; Fig. 2. The traction battery in a perspective view; Fig. 3. A perspective view of a section of an electrically powered vehicle with the traction battery; Fig. 4 in a perspective view, a front end of the transport cart; Fig. 5 in a perspective view a connecting device of the transport trolley in the closed state, wherein the transport trolley is not connected to the vehicle; Fig. 6 in a perspective view the connecting device of the transport vehicle when almost fully open; Fig. 7 in a side view a first connecting latch of the connecting device; Fig. 8 in a perspective view a safety device of the transport vehicle in the secured state; Fig. 9 in a perspective view the safety device of the transport vehicle in the release state; Fig. 10 in a perspective view the transport cart looking from above at the front end of the transport cart, and Fig. Figure 11 shows a section of a coupling arrangement in a perspective view, comprising the electrically powered vehicle and the transport wagon.

[0020] In the Fig. Figure 1 shows a transport cart 1. A cuboid traction battery B, as used particularly in the... Fig. Figure 2 is shown. In particular, the traction battery B can be transported by means of the transport vehicle 1 from an electrically powered vehicle T, preferably an electrically powered tractor, to a charging station for the traction battery 1 and vice versa. The electrically powered vehicle T, for example a tractor, is located, for instance, in the Fig. Figure 3 shows a partial view and features a coupling cross member K that extends horizontally in the transverse direction of vehicle T. The transport wagon 1 can be coupled to the electrically powered vehicle T via the coupling cross member K, forming a coupling arrangement comprising the electrically powered vehicle and the transport wagon 1.

[0021] As this is shown in the Fig. As shown in Figure 1 for better understanding of the directional information mentioned below, the transport cart 1 is assigned a longitudinal axis L, a transverse axis Q, and a vertical axis H. The longitudinal axis L, the transverse axis Q, and the vertical axis H refer to the transport cart 1 and are axes of a Cartesian coordinate system. The longitudinal axis L extends perpendicularly to the transverse axis Q and perpendicularly to the vertical axis H. The vertical axis H extends perpendicularly to the longitudinal axis L and perpendicularly to the transverse axis Q. The positive axis directions of the respective axes L, Q, and H are indicated by the arrowheads shown.

[0022] The transport cart 1 has a chassis 5 that can be moved on the floor via casters 7. For illustrative purposes only, two of the four casters 7 are shown here as being lockable by means of a braking device. The transport cart 1 also has a handle 9, which is formed here, for example, by a grab bar. The handle 9 is connected to the chassis 5 at a rear end HE of the transport cart 1.

[0023] Furthermore, the transport cart 1 has a lifting device 11, which here is merely an example of a scissor linkage attached to the chassis 5. The transport cart 1 also has a roller conveyor 21 attached to the lifting device 11, specifically to an upper surface of the lifting device 11 opposite the chassis 5 and pointing in the positive direction of the vertical axis H. By actuating the lifting device 11, the roller conveyor 21 can be adjusted along the vertical axis H relative to the chassis 5. The lifting device 11 can be actuated, here only as an example, by means of a foot pedal and a hand lever. The roller conveyor 21 can be adjusted to the height of the electrically powered vehicle T such that the traction battery B can be moved from the roller conveyor 21 to the electrically powered vehicle T or vice versa without a step and / or overcoming a height difference.

[0024] The roller conveyor 21, as an example of a transfer unit for the transport carriage 1, has several rollers 23. The respective longitudinal axes of the rollers 23 extend parallel to each other and parallel to the transverse axis Q, as well as perpendicular to the longitudinal axis L and perpendicular to the vertical axis H. The rollers 23 are arranged one behind the other along the longitudinal axis L. Alternatively, the roller conveyor 23 can also be replaced, for example, by a sliding track as the transfer unit.

[0025] In the positive vertical direction of the vertical axis H, a guide frame 27 adjoins the roller conveyor 21. The guide frame 27 guides the traction battery B on the roller conveyor 21 in both the positive transverse direction of the transverse axis Q and in the negative transverse direction of the transverse axis Q, and secures it against falling from the transport carriage 1. The guide frame 27 has a stop element 29 for the traction battery B, such that the traction battery B can only be displaced on the roller conveyor 21 in the negative longitudinal direction of the longitudinal axis L until it is in contact with the stop element 29 of the guide frame 27.The guide frame 27 is open in the positive longitudinal axis direction of the longitudinal axis L, so that the traction battery B can be pushed in the negative longitudinal axis direction of the longitudinal axis L from the electrically operated vehicle T onto the roller conveyor 21 or from the roller conveyor 21 onto the electrically operated vehicle T without interference contours.

[0026] As demonstrated by the Fig. As can be seen in Figure 4, the transport carriage 1 has a guide device at its front end VE, which points in the positive longitudinal axis direction. The guide device is arranged in front of the roller conveyor 21 and attached to it, with the view in the negative longitudinal axis direction. The guide device allows the transport carriage 1 to be moved towards the coupling cross member K of the electrically operated vehicle T.

[0027] The guide device has two guide forks, namely a first guide fork 35 and a second guide fork 37. The guide forks 35 and 37 are arranged, with respect to the vertical axis H, essentially at the same height as the roller conveyor 21. The first guide fork 35 is arranged adjacent to the roller conveyor 21 in the positive transverse axis direction. The second guide fork 37 is arranged adjacent to the roller conveyor 21 in the negative transverse axis direction. Each of the guide forks 35 and 37 defines an outer boundary of a receiving recess 39, which is open in the positive longitudinal axis direction as well as in the positive and negative transverse axis directions.Each of the guide forks 35 and 37 is designed and suitable to partially engage the coupling crossbar K of the electrically operated vehicle T, which extends parallel to the transverse axis Q of the transport carriage 1 and is essentially cylindrical, in order to arrange the transport carriage 1 in the correct position and orientation relative to the electrically operated vehicle T.

[0028] As demonstrated by the Fig. 5 and Fig. As can be seen in Figure 6, the transport carriage 1 has a connecting device 41 for connecting the transport carriage 1 to the electrically operated vehicle T. The connecting device 41 has two connecting pawls, namely a first connecting pawl 43 and a second connecting pawl 45. The two connecting pawls 43 and 45 are separated from each other parallel to the transverse axis Q and are connected and coupled to each other via a linkage 47. The linkage 47 extends essentially parallel to the transverse axis Q. The first connecting pawl 43 is arranged in the positive transverse axis direction directly next to the first guide fork 35. The second connecting pawl 45 is arranged in the negative transverse axis direction directly next to the second guide fork 37. Due to the coupling of their movements via the linkage 47, the first connecting pawl 43 and the second connecting pawl 45 are pivotable about a common pivot axis S.The pivot axis S extends parallel to the transverse axis Q. The connecting pawls 43 and 45 are operatively connected via a Bowden cable of the connecting device 41 to a connecting actuating lever 49 of the connecting device 41, so that by manually actuating the connecting actuating lever 49 the first connecting pawl 43 and the second connecting pawl 45 are disengaged from one, in the . Fig. 5 shown, closed state of the connecting device 41 in a, in which Fig. The connecting device 41 can be moved to the open state shown in Figure 6 by pivoting together about the pivot axis S. The connecting device 41 is spring-loaded in the direction of the closed state by a spring force applied by springs F1, so that when the connecting actuating lever 49 is not actuated, the connecting device 41 remains in the closed state or is moved into the closed state under the influence of the spring force, or at least in the direction of the closed state and / or is pulled in the direction of the closed state.

[0029] Each of the connecting latches 43 and 45 has one, in which Fig. Figure 7 shows the base body section 51 and a locking lug 53 projecting from the base body section 51 in the negative vertical axis direction. In the closed state of the connecting device 41, the locking lug 53 of the first connecting pawl 43 is aligned with the receiving recess 39 of the first guide fork 35 when viewed in the negative transverse axis direction. In the closed state of the connecting device 41, the locking lug 53 of the second connecting pawl 45 is aligned with the receiving recess 39 of the second guide fork 37 when viewed in the positive transverse axis direction. In the open state of the connecting device 41, the locking lug 53 of the first connecting pawl 43 is displaced from the receiving recess 39 of the first guide fork 35 when viewed in the negative transverse axis direction.In the open state of the connecting device 41, the locking lug 53 of the connecting latch 45, viewed in the positive transverse axis direction, is arranged outside the line of sight of the receiving recess 39 of the second guide fork 37.

[0030] In the closed state of the connecting device 41, the coupling cross member K is held in the receiving recess 39, which is bounded by the first guide fork 35, by the locking lug 53 of the first connecting pawl 43 in the coupling arrangement. In the closed state of the connecting device 41, the coupling cross member K is held in the receiving recess 39, which is bounded by the second guide fork 37, by the locking lug 53 of the second connecting pawl 45 in the coupling arrangement. The closed state can be determined, for example, by the Fig. 11 is evident.

[0031] In the Fig. 8 and Fig. Figure 9 shows a section of the coupling arrangement. The transport carriage 1 is positively connected to the coupling cross member K of the electrically operated vehicle T via the connecting device 41. In the Fig. 8 and Fig. 9 the traction battery B is still located on the electrically powered vehicle T.

[0032] As can also be seen from the Fig. 8 and Fig. As can be seen in Figure 9, the transport trolley 1 has a holding device 61 for the traction battery B. The holding device 61 has a first holding pawl 63 and a second holding pawl 65, as well as a holding pawl shaft 67. Both the first holding pawl 63 and the second holding pawl 65 are fixed against rotation on the holding pawl shaft 67. For mechanical stabilization, the first holding pawl 63 and the second holding pawl 65 are connected by a connecting rod. The holding pawl shaft 67 extends parallel to the transverse axis Q. The holding device 61 also has a Bowden cable and a holding actuation lever 69, which is attached to the handle 9. The holding pawls 63 and 65 are operatively connected to the holding actuation lever 69 via the Bowden cable.By manually actuating the holding-actuating lever 69, the first holding pawl 63 and the second holding pawl 65 can be moved together from their held position to their released position by rotating them about a longitudinal axis of the holding pawl shaft 67 in the negative vertical axis direction. The holding pawls 63 and 65 are spring-loaded in the direction of their held position by a spring force applied by springs F2, so that when the holding-actuating lever 69 is not actuated, the holding pawls 63 and 65 remain in their locked position or automatically move into the held position under the influence of the spring force of the springs F2, or at least are pulled in the direction of the held position. In the . Fig. At position 8, the holding device 61 is in its holding position. Fig. 9 the holding device 61 is in its released state.

[0033] Each of the retaining pawls 63 and 65 has a base body section and a locking lug projecting from the base body section in the positive vertical axis direction. In their locked position, the first locking pawl 63 and the second locking pawl 65 each project beyond the roller conveyor 21 in the positive vertical axis direction, so that in the locked position of the locking pawls 63 and 65, the traction battery B is secured on the transport carriage 1 by positive locking clamping and / or holding of the traction battery B between the locking lug of the first locking pawl 63 and the stop element 29, and between the locking lug of the second locking pawl 65 and the stop element 29. In their unlocked position, the locking pawls 63 and 65 are recessed to such an extent that they do not project beyond the roller conveyor 21 in the positive vertical axis direction and the traction battery B can be moved without interference on the roller conveyor 21.

[0034] The transport trolley 1 also has a locking device 81 for the holding device 61. The locking device 81 can be identified in particular by the Fig. As shown in Figure 10, the locking device 81 is located at the front end VE of the transport trolley 1. The locking device 81 interacts mechanically with the holding device 61 and ensures that the holding device 61 can only be moved from the locked position to the unlocked position if the coupling crossbar K is fully inserted into the guide forks 35 and 37. This prevents the holding device 61 from being moved to its unlocked position unless the transport trolley 1 is attached to the electrically powered vehicle T. This prevents the traction battery B from falling off the traction trolley 1.

[0035] The locking device 81 comprises a first locking angle 83, a second locking angle 85, a first locking linkage 87, a second locking linkage 89, a first locking pawl 91, a second locking pawl 93, springs F3, and a locking angle shaft 95. The locking device 81 is arranged at the front end VE of the transport carriage 1, behind the connecting device 41 when viewed in the negative vertical axis direction. The first locking angle 83 and the second locking angle 85 are spaced apart from each other parallel to the transverse axis Q and are fixed against rotation on the locking angle shaft 95. The locking angle shaft 95 is rotatably mounted on the guide forks 35 and 37.

[0036] The first locking angle 83 is mechanically connected to the first locking pawl 91 via the first locking linkage 87. The second locking angle 85 is mechanically connected to the second locking pawl 93 via the second locking linkage 89. In a locked state of the locking device 81, as is the case, for example, in the Fig.As shown in Figure 5, the locking angles 83 and 85 are out of contact with the coupling cross member K and therefore not actuated by it. In the locked position, the first locking pawl 91 rests against the first retaining pawl 63 and the second locking pawl 93 rests against the second retaining pawl 65 in such a way that the retaining pawls 63 and 65 cannot be moved from the locked position to the unlocked position even by actuating the locking actuating lever 69. If, however, the coupling cross member K presses against the locking angles 83 and 85 in the negative longitudinal axis direction, these are pivoted together with the locking angle shaft 95 about a longitudinal axis of the locking angle shaft 95 in a pivoting motion. This pivoting movement is transmitted via the locking rods 87 and 89 to the pawls 91 and 93, so that the pawls 91 and 93 are moved into their release state, in which the pawls 91 and 93 are out of contact with the retaining pawls 63 and 65.In the release state of the locking device 81, the retaining pawls 63 and 65 can be moved from their holding state to their release state, so that the traction battery B can be moved on the roller track 21.

[0037] The transport trolley 1 also has a display device 101, which is arranged in the negative transverse axis direction next to the roller conveyor 21. The display device 101 is mechanically coupled to the holding device 61. Based on the display device 101, a user of the transport trolley 1 standing at the rear end HE of the transport trolley 1 can thus see whether the holding device 61 is in its holding state or in its release state.

[0038] The transport cart 1 also has a driveshaft 111 extending parallel to the longitudinal direction L in the area of ​​the lifting device 11. A locking unit, which secures the traction battery B to the electrically powered vehicle, can be actuated by means of the driveshaft 111. The driveshaft 111 has a crank 113 at its rear end HE of the transport cart 1 and a socket at its front end VE of the transport cart 1. Using the crank 113, a user of the transport cart 1 can rotate the driveshaft 111 together with the socket from the rear end HE of the transport cart 1, thereby opening or closing the locking unit of the electrically powered vehicle T from the rear end HE of the transport cart 1. Reference symbol list 1 traction car, 5 chassis 7 driving roller 9 Handle mechanism 11 Lifting device 21 Roller conveyor 23 Roller 27 Guidelines 29 Stop element 35 first guide fork 37 second guide fork 39 Intake deepening 41 Connection device 43 first connecting jack 45 second connecting jack 47 rods 49 Connecting actuating levers 51 Basic body section 53 Rastnase 61 Holding device 63 first retaining latch 65 second retaining latch 67 Retaining pawl shaft 69 Holding actuation lever 81 Locking device 83 first locking angle 85 second locking angle 87 first locking linkage 89 second locking linkage 91 first locking pawl 93 second locking pawl 95 locking angle shaft 101 Display device 111 Drive shaft 113 Crank B Traction battery F1 spring F2 spring F3 spring K coupling cross brace S swivel axis T vehicle VE front end HE rear end L Longitudinal axis Q transverse axis H vertical axis

Claims

[1] Transport carriage for a traction battery of an electrically powered vehicle, wherein the transport carriage (1) has a connecting device (41) at a front end (VE) of the transport carriage (1) which is designed and / or suitable for the transport carriage (1) to be brought into a detachable positive connection with the vehicle (T) by means of the connecting device (41) forming a coupling arrangement, wherein the connecting device (41) has a first connecting latch (43) and a second connecting latch (45), wherein the connecting device (41) is designed and / or suitable so that, by actuating a connecting actuating lever (49) of the connecting device (41), which is mechanically connected to the connecting pawls (43; 45) via a Bowden cable of the connecting device (41), the first connecting pawl (43) and the second connecting pawl (45) can be jointly moved from a closed state to an open state, characterized by , that the first connecting latch (43) and the second connecting latch (45) are coupled to each other via a linkage (47). [2] Transport trolley according to claim 1, characterized by , that the transport carriage (1) has a chassis (5) and a lifting device (11), preferably a scissor linkage, and a shifting unit, preferably a roller conveyor (21), for receiving the traction battery (B), wherein it is provided that the shifting unit can be adjusted along a vertical axis (H) of the transport carriage (1) relative to the chassis (5) by actuating the lifting device (11). [3] Transport trolley according to claim 1 or 2, characterized by , that the transport carriage (1) has a guide device which, with a viewing direction parallel to a negative longitudinal axis direction of a longitudinal axis (L) of the transport carriage (1), is arranged in front of the displacement unit, It is preferably provided that the transport carriage (1) can be oriented in the correct position and / or orientation relative to the electrically operated vehicle (T) by means of the guide device. [4] Transport trolley according to claim 3, characterized by , that the guidance device has a first guidance fork (35) and a second guidance fork (37), wherein it is provided that each of the guide forks (35; 37) has a receiving recess (39) which is open in the positive longitudinal axis direction of the longitudinal axis (L) of the transport carriage (1), bounded to the outside, It is preferably provided that the guide forks (35; 37) are designed and / or suitable to accommodate a coupling cross member (K) of the electrically operated vehicle (T), which preferably extends parallel to a transverse axis (Q) of the transport carriage, in the receiving recesses (39). [5] Transport trolley according to one of the preceding claims, characterized by , that the linkage (47) extends parallel to a transverse axis (Q) of the transport carriage (1), and / or that the first connecting latch (43) and the second connecting latch (45) can be pivoted together about a pivot axis (S) from the closed state of the connecting latches (43; 45) to the open state of the connecting latches (43; 45) and vice versa. [6] Transport wagon according to one of the preceding claims, characterized by , that the transport carriage (1) has a holding device (61) which has a first holding latch (63) and a second holding latch (65), wherein the holding device (61) is designed and / or is designed so that by actuating a holding actuating lever (69) of the holding device (61), which is mechanically connected to the holding pawls (63; 65) via a Bowden cable of the holding device (61), the first holding pawl (63) and the second holding pawl (65) can be jointly transferred from a holding state to a releasing state. [7] Transport trolley according to claim 6, characterized by, that the first retaining latch (63) and the second retaining latch (65) in the holding state project beyond the sliding unit, preferably at least partially, in the positive vertical axis direction of the vertical axis (H) of the transport carriage (1), and / or that in the released state of the first retaining latch (63) and the second retaining latch (65), the sliding unit is not projected beyond the first retaining latch (63) in the positive vertical axis direction of the vertical axis (H) of the transport carriage (1) and is not projected beyond the second retaining latch (65) in the positive vertical axis direction of the vertical axis (H) of the transport carriage (1). [8] Transport trolley according to one of claims 6 or 7, characterized by , that the transport vehicle (1) has a locking device (81), wherein the locking device (81) is provided to have a first locking angle (83), a first locking linkage (87) and a first locking pawl (91), and wherein it is provided that the first locking angle (83) is mechanically connected to the first locking pawl (91) via the first locking linkage (87), It is preferably provided that the first locking angle (83) is pivotably arranged on the transport carriage (1) in the area of ​​the first guide fork (35) such that the first locking angle (83) is in its release state when the coupling cross member (K) is fully inserted into the receiving recess (39) limited by the first guide fork (35), and / or It is preferably provided that the first locking angle (83) is arranged pivotably in the area of ​​the first guide fork (35) such that the first locking angle (83) is in its locking state when the coupling cross member (K) is located outside the receiving recess (39) limited by the first guide fork (35). [9] Transport trolley according to claim 8, characterized by, that the first locking pawl (91) in its locked state rests against the first holding pawl (63) in such a way that the first holding pawl (63) is held in its holding state and / or the first locking pawl (91) in its locked state rests against the first holding pawl (63) in such a way that the first holding pawl (63), preferably by actuating the holding actuating lever (69), cannot be adjusted from its holding state to its released state. [10] Transport trolley for a traction battery of an electrically powered vehicle, wherein the transport trolley (1) has a connecting device (41) at a front end (VE) of the transport trolley (1) which is designed and / or suitable for that the transport carriage (1) can be brought into a detachable positive-locking connection with the vehicle (T) by means of the connecting device (41) by forming a coupling arrangement, and wherein the transport carriage (1) has a guide device which, with a viewing direction parallel to a negative longitudinal axis direction of a longitudinal axis (L) of the transport carriage (1), is arranged in front of the displacement unit, characterized by , that the guidance device has a first guidance fork (35) and a second guidance fork (37), wherein it is provided that each of the guide forks (35; 37) shall each have a receiving recess (39) which is open in the positive longitudinal axis direction of the longitudinal axis (L) of the transport carriage (1) to the outside.

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