DE202021104791U1 - Transport vehicle with locking device - Google Patents

Abstract

Transport vehicle (1), in particular transport trailer, comprising
- A loading space structure (2) with a side wall (3), a loading space floor (4) and a loading space opening (5),
- A loading ramp (6) for closing the loading space opening (5) in a closed state, and
- A locking device (10) for locking the loading ramp (6) in the closed state, characterized in that the locking device (10) has a receptacle (14) and a locking bolt (15) cooperating with the receptacle (14), the locking bolt ( 15) is set up to come into positive engagement with the receptacle (14) by bringing the loading ramp (6) into the closed state and to lock the loading ramp (6) in the closed state.

Description

• - einen Laderaumaufbau mit einer Bordwand, einem Laderaumboden und einer Laderaumöffnung,
• - eine Laderampe zum Verschließen der Laderaumöffnung in einem geschlossenen Zustand, und
• - eine Arretiereinrichtung zum Arretieren der Laderampe im geschlossenen Zustand.

The invention relates to a transport vehicle, in particular a transport trailer, comprising

• - a loading space structure with a side wall, a loading space floor and a loading space opening,
• a loading ramp for closing the loading space opening in a closed state, and
• - A locking device for locking the loading ramp in the closed state.

Such transport vehicles are generally known. They are used, for example, to transport goods. The transport vehicles are either motorized or coupled to a vehicle as a transport trailer. The loading space structure of these transport vehicles comprises a loading space floor and at least one side wall which extends essentially perpendicular to the loading space floor and which form a loading space. A plurality of side wall parts coupled to one another and to the cargo space floor can also be provided. The loading space is closed by a loading ramp. In this closed state, the loading ramp must then be locked in order to safely prevent the loading ramp from opening while driving.

For locking the loading ramp, locking devices are known which comprise a locking bolt provided on the loading ramp and a corresponding receptacle on the drop side. When closed, the locking bolt engages in the receptacle and is fixed in this position by a separate locking pin. For this purpose, the locking pin is usually inserted into a hole in the receptacle on the ship's side. The fixing of the locking pin in addition to the closing of the loading space opening by the loading ramp represents additional work, which increases the loading time. Furthermore, there is the risk that the locking pin is not inserted properly or not at all into the hole provided for it and the cargo space is therefore not properly locked. Damage to the goods to be transported and the endangerment of other road traffic participants must be avoided at all costs.

It was therefore the object of the present invention to overcome at least one of the disadvantages known from the prior art. In particular, the object of the invention was to simplify the handling of the locking device of transport vehicles of the type mentioned at the beginning and to increase safety.

The object is achieved in a transport vehicle of the type mentioned in that the locking device has a receptacle and a locking bolt cooperating with the receptacle, the locking bolt being designed to positively engage with the receptacle by bringing the loading ramp into the closed state come and lock the loading ramp in the closed state.

An operative connection between the loading space ramp and the locking device thus simplifies handling when closing and locking the loading ramp. When the loading space opening is closed, the loading ramp brings the locking bolt and the receptacle into engagement and the loading ramp is locked by an operator intuitively and without additional effort. Furthermore, the safety of the transport vehicle is increased, since incorrect or inadequate locking is reliably prevented.

It is preferred that the loading ramp is fastened to the side wall and / or the loading space floor in such a way that it can be brought into a first pivoting position and a second pivoting position as required. More preferably, the loading ramp is pivotable in the first pivot position about a first pivot axis extending parallel to the ship's side and in the second pivot position pivotable about a second pivot axis extending parallel to the cargo space floor. The side wall, which has at least one side wall part, extends preferably perpendicular to the cargo space floor. The drop side can have a plurality of side wall parts which are coupled to the cargo space floor and run essentially perpendicular to the latter. Thus, the handling of the loading ramp in the first pivoting position corresponds to that of a wing door, which can be pivoted about a mostly vertical pivot axis for opening, whereby it can still be used as a loading ramp in the second pivoting position. In its function as a loading ramp, this enables, for example, an easier entry or a simplified transport of the goods to be transported or also of the animals to be transported via the loading ramp into the loading space.

It is further preferred that the receptacle is arranged adjacent to the loading space floor and is in engagement with the locking bolt in the second pivot position for pivoting the loading ramp about the second pivot axis. The receptacle is thus used at the same time as a bearing for the locking bolt, the locking bolt and the receptacle in particular jointly forming a pivot hinge which enables the loading ramp to pivot about the second pivot axis. Additional hinges can therefore be completely or partially dispensed with.

It is also preferred that the receptacle is pivotably mounted about a third pivot axis extending parallel and preferably at a distance from the second pivot axis and is designed to come into contact with the locking bolt by bringing the loading ramp into the closed state and in a first direction of rotation around the third pivot axis to be pivoted in order to come into positive engagement with the locking bolt. The receptacle is accordingly mounted eccentrically to the second pivot axis and is arranged in such a way that the locking bolt comes into contact with the receptacle when the loading ramp is brought into the closed state. The receptacle preferably has a protruding section, in particular a nose, with which the locking bolt comes into contact. By coming into contact, the receptacle is pivoted into a position in which it is positively engaged with the locking bolt in order to prevent a return movement of the loading ramp and a disengagement of the locking bolt and the receptacle.

The receptacle is preferably designed to disengage from the locking bolt by pivoting about the third pivot axis in a second, opposite direction of rotation and to release the loading ramp. Because the receptacle is in positive engagement with the locking bolt until the receptacle is pivoted back, reliable locking can be ensured while driving and on uneven road surfaces.

The receptacle is preferably pivoted beyond its dead center by contact with the locking bolt in such a way that it cannot be pivoted back in the second direction of rotation by a mere return movement of the locking bolt by a pivoting movement about the third pivot axis. Thus, the receptacle can now be pivoted against the weight of the receptacle and the locking bolt by lifting it at least in sections in the second direction of rotation.

It is further preferred that the locking device has a latching mechanism which is set up to selectively lock the pivoting of the receptacle about the third pivot axis in the second direction of rotation. Such a locking mechanism can reliably prevent unintentional pivoting of the receptacle in the second direction of rotation.

It is further preferred that the locking mechanism has a locking bolt acted upon by a spring force. The pivoting in the second direction of rotation is thus blocked by the locking bolt. The locking device preferably also has a receiving plate on which the receptacle is pivotably mounted, the locking bolt being designed to interact with the receiving plate in order to selectively block the pivoting of the receptacle in the second direction of rotation. The locking bolt is pretensioned in the direction of the mounting plate by the acting spring force. The locking mechanism thus allows simple and intuitive handling.

Preferably, the receiving plate has a latching receptacle corresponding to the latching mechanism and the receptacle has a through hole for passing through the latching bolt, the latching bolt and the latching receptacle being designed to come into congruence when the locking bolt is in engagement with the receptacle, so that the latching bolt through the through hole is carried out and is positively engaged with the locking receptacle by the spring force. By means of such a latching receptacle, the receptacle is determined with repeatable accuracy and the pivoting in the second direction of rotation is blocked.

It is further preferred that the locking device has a handle, which is arranged on an end section of the locking bolt facing away from the receptacle, the locking bolt being able to be disengaged from the locking receptacle by a tensile force acting on the handle. Thus, the locking mechanism can be optionally released by the handle. A handle enables simple and practical handling of the locking mechanism.

It is preferred that the locking device has a spring mechanism arranged between the handle and the locking bolt for applying the spring force and the locking bolt is in engagement with the handle with play. The spring mechanism is thus protected between the handle and the locking bolt and a compact design of the locking mechanism is implemented. In the present case, engagement between the locking bolt and the handle with play is understood to mean that the locking bolt can be moved relative to the handle in a defined area

The handle is preferably designed to move the locking bolt against the spring force by applying a tensile force. The locking bolt can be moved by the spring force for engaging with the receptacle relative to the handle in the direction of the receptacle and can be moved away from the receptacle together with the handle for disengaging when a tensile force is applied.

It is further preferred that the locking device has a positioning part which is set up to hold the receptacle when the loading ramp is open in a position in which the Locking bolt comes into contact with the receptacle and positively engages by bringing the loading ramp into the closed state. Thus, in particular, an unwanted pivoting movement in the second direction of rotation is avoided and it is ensured that the receptacle reliably comes into contact with the locking bolt. The handling of the locking device is thus further improved.

The receptacle further preferably has an outer contour with a concave section which is designed to correspond to the locking bolt, so that the receptacle and the locking bolt form a pivot bearing for the loading ramp in the second pivot position. Thus, the pivoting movement of the loading ramp is safely guided in the second pivoting movement and additional pivot bearings can be completely or partially dispensed with.

It is further preferred that the receptacle is assigned to the drop side and the locking bolt is assigned to the loading ramp. In particular, the receptacle is assigned to an end portion of the side wall adjacent to the loading space opening. More preferably, the side wall is formed from a plurality of side wall parts and the receptacle is assigned to a side wall part arranged adjacent to the loading space opening. The receptacle thus remains in a defined position on the side wall and the locking bolt is pivoted together with the loading ramp. This ensures that the receptacle is not unintentionally pivoted in the first direction of rotation.

It is further preferred that the loading ramp comprises a hinge shaft which extends in the direction of the second pivot axis, and the locking bolt is formed by an end section of the hinge shaft. The stability of the loading ramp for pivoting about the second pivot axis is thus increased and the locking bolt is provided in a structurally simple manner by an end section of the hinge shaft. The locking bolt thus has, in particular, the necessary stability in order, for example, to function as a pivot bearing together with the receptacle.

• - mindestens ein erstes Scharnier, welches dazu eingerichtet ist, lösbar mit der Laderampe gekoppelt zu werden und die Laderampe schwenkbar um die erste Schwenkachse an der Bordwand zu befestigen,
• - mindestens ein zweites Scharnier, welches dazu eingerichtet ist, mit der Laderampe gekoppelt zu werden und die Laderampe in der ersten Schwenkstellung schwenkbar um die erste Schwenkachse an der Bordwand zu befestigen und die Laderampe in der zweiten Schwenkstellung schwenkbar um die zweite Schwenkachse an dem Laderaumboden zu befestigen, wobei sich die zweite Schwenkachse vertikal zur ersten Schwenkachse erstreckt.

It is further preferred that the transport vehicle further comprises:

• - At least one first hinge which is designed to be detachably coupled to the loading ramp and to fasten the loading ramp pivotably about the first pivot axis on the ship's side,
• - At least one second hinge, which is designed to be coupled to the loading ramp and to attach the loading ramp in the first pivoting position so that it can pivot about the first pivot axis on the side wall and to pivot the loading ramp in the second pivot position about the second pivot axis on the loading space floor attach, wherein the second pivot axis extends vertically to the first pivot axis.

The loading ramp is thus securely attached to the drop side and / or the loading space floor by the first hinge and the second hinge. The loading ramp is preferably arranged on a part of the side wall opposite the receptacle or an opposite side wall part. The loading ramp can thus be used as a hinged door in the first pivot position and as a loading ramp in the second pivot position, the second hinge cooperating with the receptacle and the locking bolt in the second pivot position and cooperating with the first hinge in the first pivot position.

The first hinge is preferably an angle lever lock. Such an angle lever lock preferably comprises a mounting interface for mounting with an eyelet and a pivotably mounted bracket which is designed such that it can be pivoted from a release position to a locking position in which a bent end section of the bracket engages in the eyelet and in this way forms a positive fit locked with her. The mounting interface with the eyelet is preferably either attached to the loading space and the bracket is attached to the drop side, or the mounting interface with the eyelet is attached to the drop side and the angle is attached to the loading ramp.

In a second aspect, the invention relates to a locking device for a transport vehicle, the transport vehicle comprising a loading space structure with a side wall, a loading space floor and a loading space opening as well as a loading ramp for closing the loading space opening in a closed state, and the locking device for locking the loading ramp in the closed state is set up. The invention achieves the aforementioned object according to the second aspect in that the locking device has a receptacle and a locking bolt cooperating with the receptacle, the locking bolt being designed to engage with the receptacle and in this way by bringing the loading ramp into the closed state to come that the loading ramp is locked in the closed state. Such a locking device can accordingly be used in a transport vehicle of the type described above. It should therefore be understood that the transport vehicle according to claim 1 and the locking device according to claim 18 have similar and / or identical preferred embodiments as in particular in the dependent ones Claims are defined. Advantages of the transport vehicle according to the first aspect of the invention are also advantages of the locking device according to the second aspect of the invention.

• 1a schematisch und beispielhaft eine Ausführungsform eines Transportfahrzeugs in einem teilgeöffneten Zustand in einer ersten perspektivischen Ansicht,
• 1b eine Detailansicht eines Verschlusses des Transportfahrzeugs gemäß 1a,
• 1c eine Detailansicht eines Scharniers des Transportfahrzeugs gemäß 1a,
• 1d eine Arretiereinrichtung des Transportfahrzeugs gemäß 1a,
• 2a das Transportfahrzeug gemäß 1a in einer zweiten perspektivischen Ansicht,
• 2b den Verschluss gemäß 1a in einer zweiten perspektivischen Ansicht,
• 2c die Arretiereinrichtung gemäß 1d in einer zweiten perspektivischen Ansicht,
• 3a das Transportfahrzeug gemäß 1a in einem geschlossenen Zustand in einer dritten perspektivischen Ansicht,
• 3b eine Detailansicht eines Verschlusses des Transportfahrzeugs gemäß 3a,
• 3c eine Detailansicht einer Arretiereinrichtung des Transportfahrzeugs gemäß 3a,
• 4a das Transportfahrzeug gemäß 3a in einer vierten perspektivischen Ansicht, und
• 4b die Arretiereinrichtung gemäß 3c in einer weiteren perspektivischen Ansicht.

The invention is described in more detail below on the basis of preferred exemplary embodiments with reference to the accompanying figures. Here show:

• 1a schematically and by way of example an embodiment of a transport vehicle in a partially open state in a first perspective view,
• 1b a detailed view of a lock of the transport vehicle according to 1a ,
• 1c a detailed view of a hinge of the transport vehicle according to 1a ,
• 1d a locking device of the transport vehicle according to 1a ,
• 2a the transport vehicle according to 1a in a second perspective view,
• 2 B the closure according to 1a in a second perspective view,
• 2c the locking device according to 1d in a second perspective view,
• 3a the transport vehicle according to 1a in a closed state in a third perspective view,
• 3b a detailed view of a lock of the transport vehicle according to 3a ,
• 3c a detailed view of a locking device of the transport vehicle according to 3a ,
• 4a the transport vehicle according to 3a in a fourth perspective view, and
• 4b the locking device according to 3c in another perspective view.

the 1a and 2a show schematically and by way of example a transport vehicle 1 with a hold 2 . The hold 2 includes a side wall 3 , a load compartment floor 4th and a cargo hold opening 5 . The side wall 3 is comprises a plurality of side wall parts 3a , 3b . The transport vehicle 1 further comprises a loading ramp 6th to close the loading space opening 5 . In the view shown is the cargo hold opening 5 through the loading ramp 6th not completely closed and is in a partially opened state. The transport vehicle 1 includes a first hinge 7th and a second hinge 8th for attaching the loading ramp 6th on the ship's side 3 and preferably on the cargo hold floor 4th . The transport vehicle 1 further comprises a closure 9 for selective locking of the loading ramp 6th on the side wall part 3b . The transport vehicle also includes 1 a locking device 10 to lock the loading ramp in a closed state (cf. 3a and 4a) . The first hinge 7th and the second hinge 8th are at one end, adjacent to the cargo hold opening 5 arranged section of the side wall part 3a arranged and the locking unit 10 is at least partially on an end section of the opposite second side wall part 3b arranged.

In the view shown is the loading ramp 6th usable like a wing door and with the first hinge 7th and the second hinge 8th safe with the side wall 3 tied together.

the 1 b and 2 B show the clasp 9 of the transport vehicle 1 in detail schematically and by way of example. The closure 9 additional securing and locking of the loading ramp 6th on the ship's side 3 utilized. The closure 9 includes a rotatable on the ship's side 3 mounted lever 11 and one on the side wall part 3a attached mounting interface 12th with an eyelet in which the lever 11 can intervene to the loading dock 6th to lock. The first hinge 7th is just like the closure 9 designed as an angle lever lock.

The first hinge, not shown in detail 7th is according to the lock 9 educated. The first hinge 7th preferably includes one at the loading ramp 6th rotatably mounted lever and a corresponding mounting interface, which is on the ship's side 3 is attached and in which the lever can engage. The lever preferably extends in sections in the direction of a first pivot axis S1 (see. 1c ) in an area which is in engagement with the eyelet of the mounting interface, so that a pivoting movement of the loading ramp 6th around the pivot axis S1 is made possible.

the 1c shows the second hinge 8th in detail schematically and by way of example. The second hinge 8th is set up to do this, the loading ramp 6th in the first pivot position shown here, pivotable about the first pivot axis S1 on the ship's side 3 and in particular the side wall part 3a to fix. Further is the hinge 8th with a hinge shaft 13th tied together. The second hinge 8th is also designed such that it connects to the hinge shaft 13th cooperates in such a way that the loading ramp 6th also around the hinge shaft 13th is pivotable.

the 1d and 2c show the locking device 10 in detail by way of example and schematically.

The locking device 10 includes a recording 14th and one with the recording 14th cooperating locking bolts 15th . The recording 14th is about a third pivot axis S3 pivoted on the side wall 3 and in particular the side wall part 3b . The second pivot axis S2 and the third pivot axis S3 run parallel and at a distance from one another. The locking bolt 15th is in an end section of the hinge shaft 13th educated.

The locking device 10 further comprises a locking mechanism 16 . The locking mechanism 16 includes a handle 19th and one in the view according to 1d locking bolts not shown in detail (cf. 2c ).

The recording 14th the locking device 10 has an outer contour with a concave section 21 on, at their rear to the side wall 3 pointing end of a nose 22nd is formed which protrudes in the vertical direction. By bringing the loading ramp 6th the locking bolt is in the closed state 15th together with the hinge shaft 13th at the recording 14th moves along and hits the nose 22nd . This will make the recording 14th in a first direction of rotation D1 around the pivot axis S3 moves and thus arrives in a form-fitting manner with the locking bolt 15th engaged.

The locking device 10 also has one on the ship's side 3 and / or the load compartment floor 4th attached mounting plate 23 with a positioning part 24 on. The recording 14th is on the mounting plate 23 the locking device 10 pivoted. The positioning part 24 is on the mounting plate 23 attached and 23 stands from the mounting plate 23 towards the recording 14th before inadvertent pivoting of the recording 14th in a second, opposite direction of rotation D2 (see. 3c and 4b) to prevent. Through the positioning part 24 is recording 14th held securely in position to ensure that the locking bolt engages with repeat accuracy 15th and the nose 22nd to ensure.

The mounting plate 23 also has a locking receptacle 25th to accommodate the locking bolt 17th (see. 3c ) on. The snap shot 25th is designed as a through-hole, for example. The locking bolt 17th is only indicated in the present case in a position in which it passes through a through hole 18th the recording 14th is passed through in sections. As long as the locking bolt 15th and the recording 14th are not in engagement with each other, come the locking pin 17th , the through hole 18th the recording 14th and the rest recording 25th not in engagement with each other and the locking bolt 17th lies with one end section on the receiving plate 23 at.

the 3a and 4a show the transport vehicle 1 according to 1a and 2a in a closed state in two different perspective views schematically and by way of example. The loading ramp 6th closes the cargo hold opening 5 , being the loading dock 6th by the locking device 10 is locked. In addition, the loading ramp 6th through the closure 9 on the ship's side 3 , especially the side wall part 3b , secured.

How in particular 3b shows is the lever 11 with the eyelet of the mounting interface 12th positively engaged in that an angled portion of the lever 11 in the eyelet 12th intervenes. The shown closure 9 is only preferably on the transport vehicle 1 intended.

Like in particular the 3c and 4b show the locking bolt is located 15th , which by an end portion of the hinge shaft 13th is formed in the concave portion 21 the recording 14th . The concave section 21 corresponds to the locking bolt 15th educated. The hinge shaft 13th is thus in the recording 14th rotatable about the second pivot axis S2 stored, the second pivot axis S2 parallel to the load compartment floor 4th runs.

In the shown closed state of the loading ramp 6th is the recording 14th such about the third pivot axis S3 in the first direction of rotation D1 (see. 1d ) has been pivoted that a rearward movement of the locking bolt 15th is prevented and the locking bolt 15th and the recording 14th are positively engaged with each other. Just by swiveling the mount 14th in a second direction of rotation D2 around the third pivot axis S3 reach the locking bolt 15th and the recording 14th out of engagement again.

How in particular 3c shows, the recording pans 14th around the third axis of rotation S3 as a result of contact with the locking bolt 15th just enough that this is caused by an opening movement of the loading ramp 6th and the associated movement of the locking bolt 15th in the opposite direction of rotation D2 is pivotable to the locking bolt 15th to release again. This counter-rotating movement in the direction of rotation D2 becomes effective by a locking mechanism 16 prevented.

In the in 3c The view shown is of the locking mechanism 16 only the handle 19th shown. How in particular 4b shows, the locking receptacle arrives 25th the mounting plate 23 in the closed state with the through hole 18th the recording 14th as well as the locking bolt 17th for cover. The locking bolt is in this position 17th through the through hole 18th passed through and arrives with the locking receptacle 25th engaged. The locking bolt 17th and the rest recording 25th are by applying a tensile force to the handle 19th disengageable.

The locking bolt is preferred 17th movable with the handle 19th engaged and it is also between the handle 19th and locking bolts 17th a spring mechanism (not shown) is provided which is designed to apply a spring force in the direction of the receiving plate 23 on the locking bolt 17th to raise.

In alternative embodiments, the locking bolt 17th for example also with one edge of the mounting plate 23 come into engagement to the rearward pivoting movement in the direction of rotation D2 the recording 14th to prevent. In this case, the respective edge forms the receiving plate 23 a stop, which with the locking bolt 17th cooperates in such a way that the receiving plate cooperates that a counter-rotating movement in the direction of rotation D2 is effectively prevented.

In the claims, the words “comprising” and “comprising” do not exclude other elements or steps, and the indefinite article “including” does not exclude a plurality.

A single unit or device can have the function of several elements set out in the claims. The fact that individual functions and elements are listed in different dependent claims does not mean that a combination of these functions or elements cannot also be used to advantage.

The reference symbols in the claims are not to be understood in such a way that the subject matter and the scope of protection of the claims are restricted by these reference symbols.

List of reference symbols

1

Transport vehicle

2

Load compartment structure

3

Side wall

3a, 3b

Side wall part

4th

Load compartment floor

5

Loading space opening

6th

Loading ramp

7th

first hinge

8th

second hinge

9

Clasp

10

Locking device

11

lever

12th

Interface with eyelet

13th

Hinge shaft

14th

recording

15th

Locking bolt

16

Locking mechanism

17th

Locking bolt

18th

Through hole

19th

Grab handle

21

concave section

22nd

nose

23

Mounting plate

24

Positioning part

25th

Snap recording

S1

first pivot axis

S2

second pivot axis

S3

Swivel axis

D1

Direction of rotation

D2

Direction of rotation

Claims (18)

Transport vehicle (1), in particular transport trailer, comprising - a loading space structure (2) with a side wall (3), a loading space floor (4) and a loading space opening (5), - a loading ramp (6) for closing the loading space opening (5) in a closed State, and - a locking device (10) for locking the loading ramp (6) in the closed state, characterized in that the locking device (10) has a receptacle (14) and a locking bolt (15) cooperating with the receptacle (14), wherein the locking bolt (15) is designed to come into positive engagement with the receptacle (14) by bringing the loading ramp (6) into the closed state and to lock the loading ramp (6) in the closed state. Transport vehicle (1) after Claim 1 , characterized in that the loading ramp (6) is attached to the side wall (3) and / or the loading space floor (4) in such a way that it can optionally be brought into a first pivoting position and a second pivoting position, the loading ramp (6) in in the first pivot position about a first pivot axis (S1) extending parallel to the side wall (3), and in the second pivot position about a second pivot axis (S2) extending parallel to the cargo space floor (4). Transport vehicle (1) after Claim 2 , characterized in that the receptacle (14) is arranged adjacent to the loading space floor (4) and is designed to be in engagement with the locking bolt (15) in the second pivot position. Transport vehicle (1) according to one of the preceding claims, characterized in that the receptacle (14) is pivotably mounted about a third pivot axis (S3) extending parallel and preferably at a distance from the second pivot axis (S2) and is set up for this by bringing the loading ramp (6) to come into contact with the locking bolt (15) in the closed state and to be pivoted about the third pivot axis (S3) in a first direction of rotation (D1) in order to come into positive engagement with the locking bolt (15). Transport vehicle (1) after Claim 4 , characterized in that the receptacle (14) is designed to disengage from the locking bolt (15) by pivoting about the third pivot axis (S3) in a second, opposite direction of rotation (D2) and to release the loading ramp (6) . Transport vehicle (1) after Claim 5 , characterized in that the locking device (10) has a latching mechanism (16) which is set up to selectively block the pivoting of the receptacle (14) about the third pivot axis (S3) in the second direction of rotation (D2). Transport vehicle (1) after Claim 6 , characterized in that the locking mechanism (16) has a locking bolt (17) acted upon by a spring force. Transport vehicle (1) after Claim 7 , characterized in that the locking device (10) has a receiving plate (23) on which the receptacle (14) is pivotably mounted, the spring force acting in the direction of the receiving plate (23). Transport vehicle (1) after Claim 8 , characterized in that the receiving plate (23) has a latching receptacle (25) corresponding to the latching bolt (17) and the receptacle (14) has a through hole (18) for passing through the latching bolt (17), and wherein the latching bolt (17) and the latching receptacle (25) are designed to come into congruence when the locking bolt (15) is in engagement with the receptacle (14), so that the latching bolt (17) is passed through the through hole (18) and form-fit with the latching receptacle ( 25) comes into engagement. Transport vehicle (1) according to one of the Claims 7 until 9 , characterized in that the locking device (10) has a handle (19) which is arranged on an end section of the locking bolt (17) facing away from the receptacle (14), the locking bolt (17) being secured by a handle (19) acting tensile force can be brought out of engagement with the latching receptacle (25). Transport vehicle (1) after Claim 9 , characterized in that the locking device (10) has a spring mechanism arranged between the handle (19) and the locking bolt (17) for applying the spring force to the locking bolt (17), and the locking bolt (17) preferably with play with the handle (19) ) is engaged. Transport vehicle (1) according to one of the preceding claims, characterized in that the locking device (10) has a positioning part (24) which is designed to hold the receptacle (14) in a position in which when the loading ramp (6) is open by bringing the loading ramp (6) into the closed state, the locking bolt (15) comes into contact with the receptacle (14) and engages positively. Transport vehicle (1) according to one of the Claims 7 until 12th , characterized in that the receptacle (14) has an outer contour with a concave section (21) which is designed to correspond to the locking bolt (17) so that the receptacle (14) and the locking bolt (17) are a pivot bearing in the second pivot position for the loading ramp (6). Transport vehicle (1) according to one of the preceding claims, characterized in that the receptacle (14) is assigned to the side wall (3) and the locking bolt (15) is assigned to the loading ramp (6). Transport vehicle (1) according to one of the preceding claims, characterized in that the loading ramp (6) comprises a hinge shaft (13) which extends in the direction of the second pivot axis (S2), and the locking bolt (15) through an end section of the hinge shaft (13) is formed. Transport vehicle (1) according to one of the preceding claims, further comprising: - at least one first hinge (7) which is designed to be releasably coupled to the loading ramp (6) and the loading ramp (6) to be pivotable about the first pivot axis (S1 ) to be attached to the side wall (3), - at least one second hinge (8), which is designed to be coupled to the loading ramp (6) and the loading ramp (6) in the first pivot position can be pivoted about the first pivot axis (S1 ) to be attached to the side wall (3) and in the second pivot position, the loading ramp (6) is pivotable about the second pivot axis (S2) to be attached to the loading space floor (4), the second pivot axis (S1) extending vertically to the first pivot axis (S1). Transport vehicle (1) after Claim 16 , characterized in that the first hinge (7) is an angle lever lock. Locking device (10) for a transport vehicle (1), the transport vehicle (1) having a loading space structure (2) with a side wall (3), a loading space floor (4) and a loading space opening (5) as well as a loading ramp (6) for closing the loading space opening (5) in a closed state, and the locking device (10) is set up to lock the loading ramp (6) in the closed state, characterized in that the locking device (10) has a receptacle (14) and a receptacle (14) cooperating locking bolt (15), the locking bolt (15) being designed to come into engagement with the receptacle (14) by bringing the loading ramp (6) into the closed state in such a way that the loading ramp (6) in the closed state is locked.

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