Top cover assembly, cab and vehicle

Abstract

The utility model particularly relates to a top cover assembly, a cab and a vehicle. The top cover assembly comprises a cover plate and a beam frame assembly, a skylight through hole is formed in the cover plate, the beam frame assembly is fixedly connected to the bottom face of the cover plate, the beam frame assembly comprises a skylight reinforcing frame, two front longitudinal beams, a rear longitudinal beam and a side cross beam, one end of the side cross beam is fixedly connected with the skylight reinforcing frame, and the other end of the side cross beam is fixedly connected with the top end of a B column of a vehicle cab; the two front longitudinal beams are both located on the front side of the skylight reinforcing frame, one end of each front longitudinal beam is fixedly connected with the skylight reinforcing frame, and the other end of each front longitudinal beam is fixedly connected with an air window upper cross beam assembly of a vehicle cab. The two rear longitudinal beams are located on the rear side of the skylight reinforcing frame, one end of each rear longitudinal beam is fixedly connected with the skylight reinforcing frame, and the other end of each rear longitudinal beam is fixedly connected with the top end of a rear wall vertical beam of a vehicle cab. The skylight reinforcing frame is provided with a center hole, the center hole and the skylight through hole are rectangular, and the projections of the center hole and the skylight through hole on the horizontal plane are overlapped.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, and more particularly to a roof assembly, a cab and a vehicle. BACKGROUND

[0002] The cab is one of the most important parts of a vehicle, and its performance directly affects the performance and safety of the vehicle. When the cab is subjected to torsion, bending and other working conditions, it must bear the transmission of force, and when the cab bears the top load, it must effectively protect the personal safety of the driver. The roof assembly should have sufficient load-bearing capacity. However, the lightweight level of the roof assembly of the existing vehicle is low, and the energy consumption is high, which does not meet the market trend and demand for lightweight. At the same time, with the development of modern commercial vehicles towards electrification, higher requirements for environmental protection and energy saving are put forward. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the present application provides a roof assembly, a cab and a vehicle, aiming to improve the problem of low lightweight level and high energy consumption of the roof assembly of the existing vehicle, improve the lightweight level of the roof assembly, and reduce the energy consumption of the vehicle.

[0004] In a first aspect, the present application provides a roof assembly, comprising:

[0005] a cover plate; and

[0006] a beam frame assembly fixedly connected to the bottom surface of the cover plate, the beam frame assembly being a steel material structural member, the beam frame assembly comprising a sunroof reinforcing frame, two front longitudinal beams symmetrically arranged along the left-right direction of the sunroof reinforcing frame, a rear longitudinal beam and a side cross beam, one end of the side cross beam being fixedly connected to the sunroof reinforcing frame, the other end of the side cross beam being fixedly connected to the top end of the B-pillar of the cab of the vehicle, both of the front longitudinal beams being located on the front side of the sunroof reinforcing frame, one end of the front longitudinal beam being fixedly connected to the sunroof reinforcing frame, the other end of the front longitudinal beam being fixedly connected to the windshield upper cross beam assembly of the cab of the vehicle, both of the rear longitudinal beams being located on the rear side of the sunroof reinforcing frame, one end of the rear longitudinal beam being fixedly connected to the sunroof reinforcing frame, the other end of the rear longitudinal beam being fixedly connected to the top end of the rear wall vertical beam of the cab of the vehicle.

[0007] Preferably, the front longitudinal beam, the rear longitudinal beam and the side cross beam are integrally formed and provided with connecting edges on both sides in the width direction thereof, the connecting edges being connected to the cover plate by riveting, and the end of the front longitudinal beam, the rear longitudinal beam and the side cross beam away from the sunroof reinforcing frame being connected to the cover plate by riveting and gluing.

[0008] Preferably, the sunroof reinforcing frame comprises two first sub-frames and two second sub-frames, the two first sub-frames are arranged opposite to each other along the left-right direction and extend along the front-rear direction of the cab, and the two second sub-frames are arranged opposite to each other along the front-rear direction and extend along the left-right direction of the cab; each first sub-frame is fixedly connected with two second sub-frames at both ends in the extending direction.

[0009] The first sub-frame and the second sub-frame are both provided with a mounting edge on both sides in the width direction of the first sub-frame and the second sub-frame, and the mounting edge and the cover plate are connected by riveting.

[0010] Preferably, each first sub-frame is provided with a weight-reducing hole, and the first sub-frame is provided with an annular assembly edge along the edge of the weight-reducing hole, and the assembly edge is fixedly connected with the cover plate.

[0011] Preferably, the sunroof reinforcing frame is a general steel material structural member, and the front longitudinal beam, the rear longitudinal beam and the side transverse beam are all high-strength steel material structural members.

[0012] Preferably, the cover plate is an aluminum alloy plate member.

[0013] Preferably, the cover plate is provided with a sunroof through hole, and the sunroof reinforcing frame is provided with a center hole, and the center hole and the sunroof through hole are both rectangular in shape and overlap in the horizontal plane.

[0014] Preferably, the top surface of the cover plate is provided with a U-shaped water guide groove and a water drain groove, the water guide groove is annularly arranged along the sunroof through hole, the water guide groove is in communication with one end of the water drain groove, and the other end of the water drain groove extends to the edge of the cover plate.

[0015] In a second aspect, the application provides a cab comprising the top cover assembly provided in the first aspect of the application.

[0016] In a third aspect, the application provides a vehicle comprising the cab provided in the second aspect of the application.

[0017] Compared with the prior art, the top cover assembly, the cab and the vehicle provided by the application at least achieve the following beneficial effects:

[0018] The roof assembly, cab and vehicle provided by the application, the roof assembly comprises a cover plate and a beam assembly, the cover plate is a light material plate piece, the beam assembly comprises a sunroof reinforcing frame, two front longitudinal beams, a rear longitudinal beam and a side cross beam, the beam assembly is simple in structure, saves material and can reduce the overall weight of the roof assembly; meanwhile, the front longitudinal beam, the rear longitudinal beam and the side cross beam are all steel structural pieces, the beam assembly has sufficient strength and rigidity, external force acting on the beam assembly can be dispersed and transmitted through multiple transmission paths, so that the beam assembly has sufficient load bearing capacity, in this way, the light weight level of the roof assembly is improved under the premise of meeting sufficient strength, rigidity and load bearing capacity, and thus the energy consumption of the vehicle can be reduced.

[0019] Of course, it is not necessary to achieve all the technical effects described above at the same time when implementing any product of the application.

[0020] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings incorporated in and forming a part of the specification illustrate embodiments of the present application and, together with the description, serve to explain the principles of the application.

[0022] Figure 1 An exploded view of the structure of the cab provided by the embodiment of the application is shown;

[0023] Figure 2 An exploded view of the structure of the cab provided by the embodiment of the application is shown;

[0024] Figure 3 An exploded view of the assembly structure of the beam assembly and the cab provided by the embodiment of the application is shown;

[0025] Figure 4 An exploded view of the assembly structure of the beam assembly and the cab provided by the embodiment of the application is shown;

[0026] Figure 5 An exploded view of the assembly structure of the beam assembly and the cab provided by the embodiment of the application is shown; Figure 2 An A-A cross-sectional structure schematic view of

[0027] Figure 6 A B-B cross-sectional structure schematic view of Figure 2

[0028] Reference signs:

[0029] ​10 - roof assembly, 20 - floor assembly, 30 - side wall assembly, 31 - A-pillar, 32 - B-pillar, 40 - rear wall assembly, 41 - rear wall vertical beam, 50 - front wall assembly, 60 - windshield upper cross beam assembly, 100 - cover plate, 110 - sunroof through hole, 200 - beam frame assembly, 210 - sunroof reinforcing frame, 211 - center hole, 212 - first sub-frame, 201 - weight-reducing hole, 203 - mounting edge, 204 - assembly edge, 213 - second sub-frame, 220 - front longitudinal beam, 230 - rear longitudinal beam, 240 - side cross beam. DETAILED DESCRIPTION

[0030] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of the components and steps set forth in the examples, as well as the numerical expressions and numerical values, are not limiting to the scope of the present application unless specifically stated otherwise.

[0031] The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the scope of the application, its application, or uses.

[0032] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, such techniques, methods, and apparatus should be considered as being part of the specification.

[0033] In all of the examples shown and discussed herein, any specific values should be interpreted as merely exemplary, and not as a limitation. Thus, other examples of exemplary embodiments can have different values.

[0034] Various modifications and changes can be made to the present application in light of the above description without departing from the spirit or scope of the application. Accordingly, the present application is intended to embrace all modifications and alterations to this concept within the scope of the appended claims (claims for technical solutions to be protected). It should be noted that the embodiments provided by the present application can be combined with each other as long as they are not contradictory.

[0035] It should be noted that like numbers and letters refer to like items throughout the drawings, and once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0036] The embodiments of the present application provide a vehicle, which includes a cab.

[0037] It can be understood that the vehicle provided by the embodiments of the present application can be a van, a truck, a vehicle-mounted shelter, etc., and the present application does not specifically limit this.

[0038] Figure 1 An exploded schematic view of the structure of the cab provided by the embodiments of the present application is shown. Referring toFigure 1 The cab comprises a roof assembly 10, a floor assembly 20, side wall assemblies 30, a rear wall assembly 40, a front wall assembly 50, and a windshield upper cross beam assembly 60, wherein the side wall assemblies 30 are arranged on the left and right sides of the roof assembly 10, the side wall assemblies 30 comprise A-pillars 31 and B-pillars 32 arranged in sequence from front to back, the rear wall assembly 40 is located at the rear side of the roof assembly 10, the rear wall assembly 40 comprises a rear wall vertical beam 41, the front wall assembly 50 and the windshield upper cross beam assembly 60 are located at the front side of the roof assembly 10, the cab is provided with a front windshield, the front wall assembly 50 is located below the front windshield, the windshield upper cross beam assembly 60 is located above the front windshield, and the roof assembly 10 is installed at the top side of the two side wall assemblies 30, the rear wall assembly 40, and the windshield upper cross beam assembly 60.

[0039] Figure 2 Fig. 1 shows a structural schematic diagram of a roof assembly provided by an embodiment of the application, Figure 3 Fig. 2 shows an assembly structural schematic diagram of a beam frame assembly and a cab provided by an embodiment of the application, Figure 4 Fig. 3 shows a structural schematic diagram of a beam frame assembly provided by an embodiment of the application.

[0040] Referring to Figures 1 to 4 The specific structure of the roof assembly 10 provided by the embodiment of the application is as follows:

[0041] The roof assembly 10 comprises a cover plate 100 and a beam frame assembly 200.

[0042] The beam frame assembly 200 is fixedly connected to the bottom surface of the cover plate 100, the beam frame assembly 200 is a steel material structural member, the beam frame assembly 200 comprises a sunroof reinforcing frame 210, two front longitudinal beams 220, rear longitudinal beams 230, and a side cross beam 240 arranged symmetrically along the left-right direction of the sunroof reinforcing frame 210, one end of the side cross beam 240 is fixedly connected to the sunroof reinforcing frame 210, and the other end of the side cross beam 240 is fixedly connected to the top end of the B-pillar 32 of the cab; the two front longitudinal beams 220 are located on the front side of the sunroof reinforcing frame 210, one end of each front longitudinal beam 220 is fixedly connected to the sunroof reinforcing frame 210, and the other end of each front longitudinal beam 220 is fixedly connected to the windshield upper cross beam assembly 60 of the cab; the two rear longitudinal beams 230 are located on the rear side of the sunroof reinforcing frame 210, one end of each rear longitudinal beam 230 is fixedly connected to the sunroof reinforcing frame 210, and the other end of each rear longitudinal beam 230 is fixedly connected to the top end of the rear wall vertical beam 41 of the cab.

[0043] In specific implementation, the sunroof reinforcing frame 210 is connected to the front longitudinal beams 220, the rear longitudinal beams 230, and the side cross beam 240 in a spot welding manner.

[0044] The top cover assembly 10 provided by the embodiment includes a cover plate 100 and a beam frame assembly 200. The cover plate 100 serves to prevent rain, snow, hail, dust and other external objects from entering the cab. The beam frame assembly 200 is fixed to the bottom surface of the cover plate 100 and serves to support the cover plate 100. The beam frame assembly 200 includes a sunroof reinforcing frame 210, two front longitudinal beams 220, a rear longitudinal beam 230 and a side cross beam 240. The front longitudinal beams 220, the rear longitudinal beam 230 and the side cross beam 240 are all made of steel structural members. When the top cover assembly 10 is subjected to external force, the cover plate 100 is directly contacted with the external environment. A part of the external force is borne by the cover plate 100, and most of the external force is transmitted to the beam frame assembly 200 through the cover plate 100. The external force transmitted to the beam frame assembly 200 can be transmitted and dispersed through the front longitudinal beams 220, the rear longitudinal beam 230 and the side cross beam 240, so that the beam frame assembly 200 can provide sufficient support for the cover plate 100. Specifically, one end of the side cross beam 240 is fixedly connected with the sunroof reinforcing frame 210, and the other end of the side cross beam 240 is fixedly connected with the top end of the B-pillar 32. Therefore, the external force borne by the beam frame assembly 200 is transmitted to the sunroof reinforcing frame 210, which can transmit a part of the force to the B-pillar 32 of the cab through the side cross beam 240, and then transmit the force to the floor assembly 20 of the cab through the B-pillar 32, until the force is transmitted to the chassis of the cab. In addition, one end of the rear longitudinal beam 230 is fixedly connected with the sunroof reinforcing frame 210, and the other end of the rear longitudinal beam 230 is fixedly connected with the top end of the rear quarter vertical beam 41. Therefore, the sunroof reinforcing frame 210 can also transmit a part of the force to the rear quarter vertical beam 41 of the cab through the rear longitudinal beam 230, and then transmit the force to the floor assembly 20 of the cab through the rear quarter vertical beam 41, until the force is transmitted to the chassis of the cab. Furthermore, one end of the front longitudinal beam 220 is fixedly connected with the sunroof reinforcing frame 210, and the other end of the front longitudinal beam 220 is fixedly connected with the windshield upper cross beam assembly 60. Therefore, the sunroof reinforcing frame 210 can also transmit a part of the force to the windshield upper cross beam assembly 60 of the cab through the front longitudinal beam 220, and then transmit the force to the A-pillar 31 of the cab through the windshield upper cross beam assembly 60, and then transmit the force to the floor assembly 20 of the cab through the A-pillar 31, until the force is transmitted to the chassis of the cab.

[0045] In the embodiment, the beam frame assembly 200 includes the sunroof reinforcing frame 210, the two front longitudinal beams 220, the rear longitudinal beam 230 and the side cross beam 240. The beam frame assembly 200 has simple structure and saves materials, and can reduce the overall weight of the top cover assembly 10. Meanwhile, the front longitudinal beams 220, the rear longitudinal beam 230 and the side cross beam 240 are all made of steel structural members. The beam frame assembly 200 has sufficient strength and rigidity. The external force acting on the beam frame assembly 200 can be dispersed and transmitted through multiple transmission paths, so that the beam frame assembly 200 has sufficient load-bearing capacity. In this way, the top cover assembly 10 can improve the lightweight level of the top cover assembly 10 under the premise of meeting sufficient strength, rigidity and load-bearing capacity, and thus can reduce the energy consumption of the vehicle.

[0046] Figure 5 A-A cross-sectional structural schematic view of Figure 2 , Figure 6 B-B cross-sectional structural schematic view of Figure 2 . See Figure 2 and Figure 5 In some embodiments, the front longitudinal beam 220, the rear longitudinal beam 230 and the side cross beam 240 are integrally formed and provided with connecting edges on both sides in the width direction thereof, and the connecting edges are connected to the cover plate 100 by riveting. The end of the front longitudinal beam 220, the rear longitudinal beam 230 and the side cross beam 240 away from the sunroof reinforcing frame 210 is connected to the cover plate 100 by riveting and gluing.

[0047] In a specific implementation, the connecting edges and the cover plate 100 can be connected by SPR self-punching riveting. In the riveting process, no pre-punching is required, which avoids the problems of edge cracks and deformation of the plate (i.e., the connecting edges and the cover plate 100) caused by punching, reduces the weakening of the mechanical properties of the plate, and is beneficial to maintaining the integrity and original strength of the plate.

[0048] The end of the front longitudinal beam 220, the rear longitudinal beam 230 and the side cross beam 240 away from the sunroof reinforcing frame 210 can be connected to the cover plate 100 by SPR self-punching riveting and high-strength structural glue. Because the SPR self-punching riveting connection method can ensure the stability of the connection structure between the front longitudinal beam 220, the rear longitudinal beam 230, the side cross beam 240 and the cover plate 100, and will not pierce the cover plate 100 to ensure the sealing, waterproofness and corrosion resistance of the cover plate 100, thereby improving the connection reliability between the beam frame assembly 200 and the cover plate 100 and the service life of the roof assembly 10.

[0049] See Figure 3 and Figure 5 In some embodiments, the sunroof reinforcing frame 210 includes two first sub-frames 212 and two second sub-frames 213. The two first sub-frames 212 are oppositely arranged along the left-right direction, and the first sub-frames 212 extend along the front-rear direction of the cab. The two second sub-frames 213 are oppositely arranged along the front-rear direction, and the second sub-frames 213 extend along the left-right direction of the cab. Each first sub-frame 212 is fixedly connected to two second sub-frames 213 at both ends in the extension direction. The first sub-frames 212 and the second sub-frames 213 are each provided with a mounting edge 203 on both sides in the width direction thereof, and the mounting edges 203 are connected to the cover plate 100 by riveting, which reduces the connection difficulty and improves the process feasibility. In this way, the connection reliability between the sunroof reinforcing frame 210 and the cover plate 100 is improved, thereby improving the connection reliability between the beam frame assembly 200 and the cover plate 100 and the service life of the roof assembly 10.

[0050] In implementation, the installation edge 203 and the cover plate 100 can be connected by SPR self-punching riveting.

[0051] Referring to Figure 5 In some embodiments, each first sub-frame 212 is provided with a lightening hole 201, which can lighten the sunroof reinforcement frame 210, thereby further improving the lightweight level of the roof assembly 10; the first sub-frame 212 is provided with an annular assembly edge 204 along the edge of the lightening hole 201, the assembly edge 204 is fixedly connected with the cover plate 100, ensuring the connectivity between the first sub-frame 212 and the cover plate 100, and improving the local rigidity thereof.

[0052] In implementation, the assembly edge 204 and the cover plate 100 can be fixedly connected by epoxy resin expansion glue.

[0053] In some embodiments, the sunroof reinforcement frame 210 is a general steel material structural member, the front longitudinal beam 220, the rear longitudinal beam 230 and the side transverse beam 240 are high-strength steel material structural members.

[0054] In this embodiment, because the general steel material has low price, the sunroof reinforcement frame 210 is a general steel material structural member, thereby the cost of manufacturing the sunroof reinforcement frame 210 can be reduced; the high-strength steel material has high strength and rigidity, and the front longitudinal beam 220, the rear longitudinal beam 230 and the side transverse beam 240 are all key load-bearing and force-transmitting structural components, therefore the front longitudinal beam 220, the rear longitudinal beam 230 and the side transverse beam 240 are all high-strength steel material structural members, in this way, the beam assembly 200 can meet the strength, rigidity and load-bearing capacity while reducing the manufacturing cost.

[0055] The cover plate 100 can adopt a light material plate member, which is conducive to improving the lightweight degree of the roof assembly 10. In some embodiments, the cover plate 100 is an aluminum alloy plate member. Because the aluminum alloy plate member has small density and low price, the cover plate 10 in this embodiment is selected from the light material plate member, which has small weight and low cost.

[0056] In some embodiments, the cover plate 100 is provided with a sunroof through hole 110, and the sunroof reinforcement frame 210 is provided with a center hole 211, the shapes of the center hole 211 and the sunroof through hole 110 are both rectangular and the projections thereof on the horizontal plane overlap, the center hole 211 further improves the lightweight degree of the beam assembly 200, the center hole 211 and the sunroof through hole 110 overlap in projection, which can ensure the normal use of the sunroof through hole 110, the sunroof through hole 110 can improve the lighting in the cab of the vehicle, enhance the ventilation, widen the field of view and increase the escape passage.

[0057] In some embodiments, the top surface of the cover plate 100 is provided with a U-shaped water guide groove and a water drain groove, the water guide groove is annularly arranged along the sunroof through hole, the water guide groove is communicated with one end of the water drain groove, and the other end of the water drain groove extends to the edge of the cover plate. In this way, the water guide groove can comprehensively collect rainwater near the sunroof through hole 110, the water drain groove guides the collected rainwater to the edge of the cover plate to drain out, prevents the rainwater from gathering around the sunroof through hole 110, reduces the leakage of the rainwater into the interior of the vehicle cab, and reduces the corrosion risk of the rainwater and the cover plate 100.

[0058] Although some specific embodiments of the present application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration, but not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A roof assembly, used in the driver's cab of a vehicle, characterized in that, include: Cover plate; and A beam frame assembly is fixedly connected to the bottom surface of the cover plate. The beam frame assembly is a steel structural component. The beam frame assembly includes a sunroof reinforcing frame, two front longitudinal beams, two rear longitudinal beams, and two side cross beams symmetrically arranged on both sides of the sunroof reinforcing frame along the vehicle width direction. One end of each side cross beam is fixedly connected to the sunroof reinforcing frame, and the other end is fixedly connected to the top of the B-pillar of the vehicle's cab. The two front longitudinal beams are located in front of the sunroof reinforcing frame, with one end fixedly connected to the sunroof reinforcing frame and the other end fixedly connected to the upper cross beam assembly of the windshield of the vehicle's cab. The two rear longitudinal beams are located behind the sunroof reinforcing frame, with one end fixedly connected to the sunroof reinforcing frame and the other end fixedly connected to the top of the rear vertical beam of the vehicle's cab.

2. The top cover assembly as described in claim 1, characterized in that, The front longitudinal beam, the rear longitudinal beam, and the side transverse beam are all integrally formed parts and have connecting edges on both sides in their width direction. The connecting edges are connected to the cover plate by riveting. The ends of the front longitudinal beam, the rear longitudinal beam, and the side transverse beam away from the sunroof reinforcing frame are connected to the cover plate by riveting and gluing.

3. The top cover assembly as described in claim 1, characterized in that, The sunroof reinforcing frame includes two first sub-frames and two second sub-frames. The two first sub-frames are arranged opposite each other in the left-right direction and extend along the front-rear direction of the cab. The two second sub-frames are arranged opposite each other in the front-rear direction and extend along the left-right direction of the cab. Each first sub-frame is fixedly connected to the two second sub-frames at both ends of the extension direction. Both the first sub-frame and the second sub-frame have mounting edges on both sides in their width direction, and the mounting edges are connected to the cover plate by riveting.

4. The top cover assembly as described in claim 3, characterized in that, Each of the first sub-frames has a weight-reduction hole, and the first sub-frame has an annular mounting edge along the edge of the weight-reduction hole, the mounting edge being fixedly connected to the cover plate.

5. The top cover assembly as described in claim 1, characterized in that, The sunroof reinforcement frame is a structural component made of ordinary steel, while the front longitudinal beam, the rear longitudinal beam, and the side crossbeams are all structural components made of high-strength steel.

6. The top cover assembly as claimed in claim 1, characterized in that, The cover plate has a skylight through hole, and the skylight reinforcing frame has a central hole. The central hole and the skylight through hole are both rectangular in shape and their projections on the horizontal plane overlap.

7. The top cover assembly as claimed in claim 6, characterized in that, The top surface of the cover plate is provided with a U-shaped water guide channel and a drainage channel. The water guide channel is arranged in a ring along the skylight opening. One end of the water guide channel is connected to the drainage channel, and the other end of the drainage channel extends to the edge of the cover plate.

8. The top cover assembly as claimed in claim 1, characterized in that, The cover plate is made of aluminum alloy sheet.

9. A driver's cab, characterized in that, Includes the top cover assembly as described in any one of claims 1 to 8.

10. A vehicle, characterized in that, Includes the driver's cab as described in claim 9.

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