Vehicle door and drill jumbo comprising same

Abstract

The utility model discloses a car door and a drill jumbo comprising the same, and belongs to the technical field of accessory equipment of engineering machinery, the car door comprises a door body and a frame, the door body is rotatably connected to the frame, the car door is characterized by comprising a first locking piece and a second locking piece, the first locking piece and the second locking piece are located at different positions on the vehicle door, each of the first locking piece and the second locking piece comprises a master locking part and a slave locking part, and the master locking parts and the slave locking parts can be meshed with each other so that the door body can be locked to the frame when the door body rotates from the first position to the second position; the vehicle door further comprises an unlocking piece, and the unlocking piece is connected to the first locking piece and the second locking piece through connecting components so that the door body and the frame can be unlocked when the unlocking piece is actuated. The utility model solves the problem that the lower part is tight and the upper part is loose when the vehicle door of the large engineering machinery is closed, and ensures the synchronous locking and unlocking of the upper part and the lower part of the vehicle door.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment for construction machinery, and more specifically, to a mechanical door locking device. Background Art

[0002] A rock drilling jumbo, also known as a drilling jumbo, is a rock drilling device commonly used in tunnel and underground engineering construction. Rock drilling jumbos generally operate in mining areas with harsh environments or in areas with heavy rain. The locking device of the cab door of a rock drilling jumbo is an important device to protect operators from the surrounding environment. Currently, the locking device of the cab door on a rock drilling jumbo is a fixed type. Currently, the standard "JB / T 5934-2014 Construction Machinery Door Locks" clearly stipulates the durability, firmness, and other usage requirements of door locks.

[0003] Due to the relatively high height of construction machinery vehicles, door locks are generally installed at a relatively low position on the door, which results in a phenomenon where the lower part of the door is tight and the upper part is loose when the door is closed, that is, "lower tight and upper loose". Especially when the door is long and large, this phenomenon is particularly obvious. Currently, the general operation to solve this problem is to increase the locking force of the door lock, which results in the lower part of the door being even tighter, while the upper part cannot fundamentally change from a loose state to a tight state. Some manufacturers solve this problem by using an electric double-lock device to lock the lower and upper parts simultaneously, but this solution requires electrical intervention, has a complex structure, and a high price. Therefore, it is of great significance to develop a door with a new mechanical door locking device having a simple structure. Summary of the Utility Model

[0004] In a first aspect of the present utility model, a door is disclosed, which includes a door body and a frame. The door body is rotatably connected to the frame. The door includes a first locking member and a second locking member. The first locking member and the second locking member are located at different positions on the door. Among them, both the first locking member and the second locking member include a main locking portion and a secondary locking portion. The main locking portion and the secondary locking portion can engage with each other to lock the door body to the frame when the door body rotates from a first position to a second position. The door further includes an unlocking member, and the unlocking member is connected to the first locking member and the second locking member through a connecting member to unlock the door body and the frame when the unlocking member is actuated.

[0005] Wherein the first locking member includes a first main locking portion and a first secondary locking portion. The first main locking portion is fixedly installed on the door body, and the first secondary locking portion is fixedly installed on the frame. The first main locking portion and the first secondary locking portion lock the door body to the frame by engaging with each other.

[0006] The second locking member includes a second main locking portion and a second secondary locking portion. The second main locking portion is fixedly installed on the door body, and the second secondary locking portion is fixedly installed on the frame. The second main locking portion and the second secondary locking portion lock the door body to the frame by meshing with each other.

[0007] The unlocking member includes a first unlocking member and a second unlocking member. The first unlocking member and the second unlocking member are connected by the connecting member. When inside the vehicle door, actuating the first unlocking member unlocks the door body and the frame; when outside the vehicle door, actuating the second unlocking member unlocks the door body and the frame.

[0008] In addition, the first locking member is located at the top of the door body, the first unlocking member and the second locking member are located below the first locking member, and the second unlocking member is located below the first unlocking member and the second locking member.

[0009] The connecting member includes a first connecting member and a second connecting member. The first connecting member is connected between the first locking member and the first unlocking member, and the second connecting member is connected between the first unlocking member and the second unlocking member.

[0010] Furthermore, the first connecting member includes a flexible shaft, and the second connecting member includes a connecting rod. The flexible shaft is directly or indirectly connected to the first unlocking member, the connecting rod is rigidly connected between the first unlocking member and the second unlocking member, and the first unlocking member and the second unlocking member are configured to be able to unlock the first locking member and the second locking member simultaneously through the flexible shaft and the connecting rod.

[0011] Furthermore, the first main locking portion includes an elastic member, a guiding member, and a first meshing member. The elastic member and the guiding member are detachably connected to or integrally formed with the first main locking portion. The elastic member is configured to bias the first meshing member upward, the guiding member is configured to guide the up and down movement of the first meshing member, and the first meshing member is connected to the first connecting member.

[0012] Furthermore, the top end of the first meshing member has a beveled tongue structure.

[0013] Furthermore, the first secondary locking portion includes a mounting portion and a second meshing member. The mounting portion is detachably mounted on the frame, and the second meshing member is detachably connected to or integrally formed with the mounting portion.

[0014] Further, the bottom end of the second engaging member has a structure complementary to the top end of the first engaging member, such that when the top end of the first engaging member contacts the bottom end of the second engaging member, the bottom end of the second engaging member forces the first engaging member to press downwards.

[0015] Further, one or more mounting slits perpendicular or substantially perpendicular to the upper side of the frame are provided on the mounting portion, whereby the distance between the mounting portion and the upper side of the frame can be adjusted.

[0016] In a second aspect of the present invention, a rock drilling jumbo is disclosed, which includes the vehicle door of the first aspect described above.

[0017] The beneficial effect of the present invention is to solve the problem that when the vehicle door of large construction machinery is closed, it is tightened at the bottom and loose at the top. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of the cab of a rock drilling jumbo according to an embodiment of the present invention;

[0019] Figure 2 is a schematic view of the vehicle door in an open state according to an embodiment of the present invention;

[0020] Figure 3 is a schematic view of the vehicle door in a closed state according to an embodiment of the present invention;

[0021] Figure 4 is a structural diagram of the first main locking portion according to an embodiment of the present invention;

[0022] Figure 5 is according to an embodiment of the present invention Figure 2 partial enlarged view of part A of the vehicle door, which shows the specific structure of the first secondary locking portion;

[0023] Figure 6 is according to an embodiment of the present invention Figure 3 partial enlarged view of part B of the vehicle door, in which the first main locking portion and the first secondary locking portion are engaged with each other when the vehicle door is in the closed state;

[0024] Figure 7 is a cross-sectional view of the first unlocking member and the second locking member of the vehicle door according to an embodiment of the present invention, wherein the second locking member is in the unlocked state;

[0025] Figure 8 is another cross-sectional view of the first unlocking member and the second locking member of the vehicle door according to an embodiment of the present invention, wherein the second locking member is in the locked state;

[0026] Figure 9 is an external view of a second unlocking member of a vehicle door according to an embodiment of the present utility model;

[0027] Figure 10 is an internal structural view of a second unlocking member of a vehicle door according to an embodiment of the present utility model.

[0028] Description of reference numerals in the drawings:

[0029] 1. Frame; 2. Door body; 3. First connecting member; 4. Second connecting member;

[0030] 10. First locking member; 11. First mounting portion; 12. Elastic member; 13. Guide member; 14. First engaging member; 15. Elastic member limiting portion; 16. Second mounting portion; 17. Second engaging member; 18. Mounting slit;

[0031] 20. Second locking member; 21. Upper locking tongue; 22. Lower locking tongue; 23. Limiting block; 24. First pin shaft;

[0032] 30. First unlocking member; 31. Handle;

[0033] 40. Second unlocking member; 41. Push rod; 42. Link bracket; 43. Hinge point bolt; 44. Second pin shaft; 45. Pull handle. Detailed implementation manners

[0034] To further understand the content of the present utility model, the present utility model will be described in detail in combination with the drawings and embodiments.

[0035] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical essential meanings. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present utility model can cover. At the same time, the terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of clear narration and are not used to limit the scope of implementation. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope that the present invention can implement.

[0036] The driver's cab of large mechanical equipment such as a rock drilling jumbo is generally relatively high from the ground, resulting in a relatively high vehicle door. To facilitate the operator to enter, a pull handle 45 is generally installed at the bottom of the vehicle door, and the vehicle door is unlocked by pulling the pull handle 45. As Figure 1 shown, Figure 1A perspective view of the cab of a rock drilling jumbo according to an embodiment of the present utility model. The rock drilling jumbo includes a vehicle door, and the vehicle door includes a frame 1 and a door body 2. The door body 2 can be rotatably connected to the frame 1 through components such as hinges, so that the door body 2 can rotate from a first position ( Figure 2 ) when the vehicle door is in an open state to a second position ( Figure 3 ) when the vehicle door is in a closed state.

[0037] As Figure 2 and Figure 3 shown, Figure 2 is a schematic diagram of the vehicle door in an open state according to an embodiment of the present utility model, Figure 3 is a schematic diagram of the vehicle door in a closed state according to an embodiment of the present utility model. The vehicle door includes a first locking member 10, a second locking member 20, a first unlocking member 30, and a second unlocking member 40. The first locking member 10 is fixedly installed on the vehicle door, specifically, at the upper part of the vehicle door. The second locking member 20 is also fixedly installed on the vehicle door, specifically, at a generally middle position in the vertical direction of the door body 2, below the first locking member 10. Generally, the first unlocking member 30 is installed together with the second locking member 20, that is, commonly installed at a generally middle position in the vertical direction of the door body 2. The second unlocking member 40 is also fixedly installed on the vehicle door, generally installed at the bottom of the door body 2, that is, below the first unlocking member 30 and the second locking member 20.

[0038] In an embodiment of the present utility model, the first unlocking member 30 and the second unlocking member 40 are connected to the first locking member 10 and the second locking member 20 through a connecting member. Specifically, the connecting member includes a first connecting member 3 connected between the first locking member 10 and the first unlocking member 30, and a second connecting member 4 connected between the first unlocking member 30 and the second unlocking member 40. In an embodiment of the present utility model, the first connecting member 3 includes a flexible shaft, and the second connecting member 4 includes a connecting rod. In an embodiment of the present utility model, the first connecting member 3 preferably includes a wire flexible shaft. Additionally, preferably, a sheath is provided on the first connecting member 3 and the second connecting member 4.

[0039] In an embodiment of the present utility model, the first locking member 10 includes a first main locking portion and a first secondary locking portion. The first main locking portion is fixedly installed on the door body 2, and the first secondary locking portion is fixedly installed on the frame 1. The first main locking portion and the first secondary locking portion are meshed with each other to lock the door body 2 to the frame 1. Refer to Figure 4 and Figure 5 , Figure 4 is a structural diagram of the first main locking portion according to an embodiment of the present utility model, Figure 5 is according to an embodiment of the present utility modelFigure 2 FIG. 1 is a partial enlarged view of the A portion of the vehicle door, which depicts the specific structure of the first secondary locking portion. In one embodiment, the first primary locking portion includes a first mounting portion 11, which is fixedly mounted on the door body 2 by a fastener such as a bolt.

[0040] The first main locking part also includes an elastic member 12, a guide member 13 and a first engagement member 14. Specifically, the elastic member 12 includes a spring, the guide member 13 includes a track bracket, the track bracket includes a track, and the first engagement member 14 includes a latch pin, which can move up and down along the track. One end of the latch pin is connected to the first connecting member 3 and abuts against one end of the spring located below it, and when the latch pin moves downward along the track, the spring is compressed. In one embodiment, the other end of the latch pin has a slanted tongue structure. Preferably, the first main locking part also includes an elastic member limiting portion 15, which is used to limit the position of the spring at the other end away from the latch pin, so that the initial state of the spring is a slightly compressed state that biases the latch pin upward. The track bracket and the elastic member limiting portion 15 can be fixedly mounted on the first mounting portion 11 by fasteners such as bolts, or can be integrally formed with the first mounting portion 11.

[0041] In addition, the first engagement member 14 can be made of metal materials such as stainless steel with high strength, not easily deformed, corrosion-resistant, and high temperature resistant. In a preferred embodiment, the latch pin can be connected with the spring by welding, and the spring can be connected with the elastic member limit portion 15 by welding.

[0042] See also Figure 5 , the first slave locking portion includes a second mounting portion 16, which is detachably mounted at the top of the frame 1, for example, by a fastener such as a bolt. The first slave locking portion also includes a second engaging member 17, and the second engaging member 17 and the second mounting portion 16 can be integrally formed or detachably connected. The bottom end of the second engaging member 17 has a structure complementary to the oblique tongue structure of the first engaging member 14, so that when the top end of the first engaging member 14 contacts the bottom end of the second engaging member 17, the bottom end of the second engaging member 17 forces the first engaging member 14 to move downward along the track, thereby compressing the spring. In a preferred embodiment, the second engaging member 17 is made of the same material as the first engaging member 14.

[0043] In a preferred embodiment, one or more mounting slits 18 perpendicular to or substantially perpendicular to the upper side of the frame 1 are further provided on the second mounting portion 16. The mounting slits 18 have an elongated shape, and a fastener such as a bolt can be passed through the mounting slits 18 to fix the first locking portion to the frame 1, thereby the distance between the second engaging member 17 and the upper side of the frame 1 can be changed by changing the position of the fastener passing through the mounting slit 18, and the engagement tightness of the first engaging member 14 and the second engaging member 17 can be adjusted, so that the closing degree of the door of the cab can be adjusted.

[0044] See also Figure 6 , Figure 6 According to an embodiment of the present utility model Figure 3 1 is a partial enlarged view of the B portion of the vehicle door, wherein the first main locking portion and the first secondary locking portion are engaged with each other when the vehicle door is in a closed state. It can be clearly seen from the figure that after the inclined surface of the inclined tongue of the first engagement member 14 moves past the complementary inclined surface of the second engagement member 17, the vertical surface of the inclined tongue of the first engagement member 14 is engaged with the vertical surface of the second engagement member 17, thereby locking the door body 2 to the frame 1.

[0045] In one embodiment of the present invention, the second locking member 20 is installed on the door body 2 together with the first unlocking member 30. Figure 7 and Figure 8 As shown, Figure 7 is a cross-sectional view of a first unlocking member 30 and a second locking member 20 of a vehicle door according to an embodiment of the present utility model, wherein the second locking member 20 is in an unlocked state; Figure 8 1 is another cross-sectional view of the first unlocking member 30 and the second locking member 20 of a vehicle door according to an embodiment of the present invention, wherein the second locking member 20 is in a locked state.

[0046] Specifically, the first unlocking member 30 includes a handle 31, the second locking member 20 includes a second main locking part and a second secondary locking part, the second main locking part includes an upper lock tongue 21, a lower lock tongue 22 and a limit block 23, and a spring corresponding to the upper lock tongue 21, the lower lock tongue 22 and the limit block 23, and the second secondary locking part includes a first pin 24 installed on the frame 1. Optionally, the second locking member 20 includes a bracket hole, and the first connecting member 3 is connected to the second connecting member 4 through the bracket hole. The handle 31 includes a connecting rod fixing member, which can be integrally formed with the handle 31 or detachably installed on the handle 31, and the second connecting member 4 is rigidly connected to the connecting rod fixing member. In another embodiment, the connecting rod fixing member can be omitted, that is, the second connecting member 4 can be directly connected to the handle 31.

[0047] like Figure 7As shown in the figure, at this time, the second locking member 20 is in an unlocked state. The upper locking tongue 21 and the lower locking tongue 22 are respectively biased into clockwise and counterclockwise rotation states under the action of their respective springs, and are limited and maintained in this state by the outer frame of the second locking member 20. The limiting block 23 is biased into a counterclockwise rotation state under the action of the corresponding spring and the constraints of the upper locking tongue 21 and the lower locking tongue 22.

[0048] As Figure 8 shown, when the vehicle door is closed, the first pin shaft 24 impacts the upper locking tongue 21 and the lower locking tongue 22, causing the upper locking tongue 21 to move counterclockwise and the lower locking tongue 22 to move clockwise to engage with the first pin shaft 24. At the same time, the limiting block 23 catches the fixed notches of the upper locking tongue 21 and the lower locking tongue 22, so that the second locking member 20 tightly wraps the first pin shaft 24, thereby locking the door body 2 to the frame 1.

[0049] When opening the vehicle door, press down the handle 31. The tail of the handle 31 pries the limiting block 23 to rotate it clockwise. After the limiting block 23 rotates, it can no longer catch the upper locking tongue 21 and the lower locking tongue 22, causing the upper locking tongue 21 to rotate clockwise and the lower locking tongue 22 to rotate counterclockwise, so that the upper locking tongue 21 and the lower locking tongue 22 are disengaged from the first pin shaft 24, and then the second locking member 20 is unlocked. It should be noted that since the handle 31 is connected to the first locking member 10 through the first connecting member 3, pressing down the handle 31 will drive the first connecting member 3 to pull the first engaging member 14 downward, so that the first engaging member 14 moves downward along the track in the track bracket to disengage from the second engaging member 17, unlocking the first locking member 10, that is, at this time, the first locking member 10 and the second locking member 20 are unlocked simultaneously, so that the vehicle door can be opened.

[0050] Refer to Figure 9 and Figure 10 , Figure 9 FIG. is an external view of the second unlocking member 40 of the vehicle door according to an embodiment of the present invention. Figure 10 FIG. is an internal structure diagram of the second unlocking member 40 of the vehicle door according to an embodiment of the present invention. Specifically, the second unlocking member 40 includes a second pin shaft 44, a push rod 41, a link bracket 42, a hinge point bolt 43, a spring and a handle 45. The handle 45 is fixedly connected to the second pin shaft 44. The push rod 41 is connected to the handle 45 through the second pin shaft 44. The link bracket 42 is fixedly connected to the second unlocking member 40 through the hinge point bolt 43. The spring biases the link bracket 42 upward. The second connecting member 4 is rigidly connected to the link bracket 42.

[0051] When the operator opens the vehicle door from outside the driver's cab, the operator can move along Figure 9Pull the handle 45 in the direction of the arrow, and the handle 45 will rotate around the second pin shaft 44, pushing the push rod 41 to move and pushing the connecting rod bracket 42. The connecting rod bracket 42 rotates around the hinge point bolt 43, thereby driving the second connecting member 4 along Figure 2 the direction of the arrow. This movement of the connecting rod pulls the handle 31 downward. The downward movement of the handle 31 unlocks the second locking member 20 and simultaneously drives the first connecting member 3 to pull the first engaging member 14 downward, causing the first engaging member 14 to move downward along the track in the track bracket to disengage from the second engaging member 17, thereby opening the vehicle door.

[0052] It should be understood that the present invention is not limited to being only applied to the vehicle door of the cab of a rock drilling jumbo, nor is it limited to being only applied to the vehicle door of construction machinery. Instead, as long as it is necessary to install two driving devices with different heights that can be interconnected on the door to drive the first main locking portion to be unlocked, it falls within the protection scope of the present invention.

[0053] The locking and unlocking members of the vehicle door of the present invention have a simple structure, are stable and reliable, can solve the problem of the lower part being tightened and the upper part being loose when the large vehicle door is closed, ensure the upper and lower parts of the vehicle door are locked synchronously, and prevent the cab environment from being affected by external dust and rain.

[0054] The present invention and its embodiments have been schematically described above. This description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural forms and embodiments without creative work without departing from the creative concept of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A vehicle door, comprising a door body (2) and a frame (1), wherein the door body (2) is rotatably connected to the frame (1), characterized in that: The vehicle door comprises a first locking member (10) and a second locking member (20), wherein the first locking member (10) and the second locking member (20) are located at different positions on the vehicle door, wherein the first locking member (10) and the second locking member (20) each comprise a main locking portion and a secondary locking portion, wherein the main locking portion and the secondary locking portion can engage with each other so that the door body (2) is locked to the frame (1) when the door body (2) rotates from a first position to a second position; The vehicle door further comprises an unlocking member, which is connected to the first locking member (10) and the second locking member (20) via a connecting member so as to unlock the door body (2) and the frame (1) when the unlocking member is actuated.

2. The vehicle door according to claim 1, characterized in that: The first locking member (10) includes a first main locking portion and a first secondary locking portion, wherein the first main locking portion is fixedly mounted on the door body (2), and the first secondary locking portion is fixedly mounted on the frame (1), and the first main locking portion and the first secondary locking portion are engaged with each other to lock the door body (2) to the frame (1).

3. The vehicle door according to claim 1, characterized in that: The second locking member (20) includes a second main locking portion and a second secondary locking portion, wherein the second main locking portion is fixedly mounted on the door body (2), and the second secondary locking portion is fixedly mounted on the frame (1), and the second main locking portion and the second secondary locking portion are engaged with each other to lock the door body (2) to the frame (1).

4. The vehicle door according to claim 2, characterized in that: The unlocking member comprises a first unlocking member (30) and a second unlocking member (40), wherein the first unlocking member (30) and the second unlocking member (40) are connected via the connecting member, and when the vehicle is inside the vehicle door, the first unlocking member (30) is actuated to unlock the door body (2) and the frame (1); When outside the vehicle door, the second unlocking member (40) is actuated to unlock the door body (2) and the frame (1).

5. The vehicle door according to claim 4, characterized in that: The first locking member (10) is located at the top of the door body (2), the first unlocking member (30) and the second locking member (20) are located below the first locking member (10), and the second unlocking member (40) is located below the first unlocking member (30) and the second locking member (20).

6. The vehicle door according to claim 4, characterized in that: The connecting member comprises a first connecting member (3) and a second connecting member (4), wherein the first connecting member (3) is connected between the first locking member (10) and the first unlocking member (30), and the second connecting member (4) is connected between the first unlocking member (30) and the second unlocking member (40).

7. The vehicle door according to claim 6, characterized in that: The first connecting member (3) includes a flexible shaft, and the second connecting member (4) includes a connecting rod, wherein the flexible shaft is directly or indirectly connected to the first unlocking member (30), and the connecting rod is rigidly connected between the first unlocking member (30) and the second unlocking member (40), and the first unlocking member (30) and the second unlocking member (40) are configured to be able to simultaneously unlock the first locking member (10) and the second locking member (20) through the flexible shaft and the connecting rod.

8. The vehicle door according to claim 6, characterized in that: The first main locking portion comprises: A first mounting portion (11), wherein the first mounting portion (11) is fixedly mounted on the door body (2); a guide member (13), the guide member (13) being detachably connected to or integrally formed with the first mounting portion (11); An elastic member limiting portion (15), the elastic member limiting portion (15) being detachably connected to or integrally formed with the first mounting portion (11); an elastic member (12), one end of the elastic member (12) being limited by the elastic member limiting portion (15); and a first engaging member (14), one end of which abuts against the other end of the elastic member (12) to be biased upward by the elastic member (12), The guide member (13) is configured to guide the first engaging member (14) to move up and down, and the one end of the first engaging member (14) is connected to the first connecting member (3).

9. The vehicle door according to claim 8, characterized in that: The other end of the first engaging member (14) has a latch tongue structure.

10. The vehicle door according to claim 9, characterized in that: The first locking portion comprises a second mounting portion (16) and a second engaging member (17), wherein the second mounting portion (16) is detachably mounted on the frame (1), and the second engaging member (17) is detachably connected to or integrally formed with the second mounting portion (16).

11. The vehicle door according to claim 10, characterized in that: The bottom end of the second engaging member (17) has a complementary structure to the other end of the first engaging member (14), so that when the top end of the first engaging member (14) contacts the bottom end of the second engaging member (17), the bottom end of the second engaging member (17) forces the first engaging member (14) to move downward.

12. The vehicle door according to claim 10, characterized in that: One or more mounting slits (18) are provided on the second mounting portion (16) perpendicular or substantially perpendicular to the upper side of the frame (1), thereby enabling the distance between the second engaging member (17) and the upper side of the frame (1) to be adjusted.

13. A rock drilling rig, characterized in that: The vehicle door comprises a vehicle door according to any one of claims 1 to 12.

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