Longeron assembly and vehicle

Abstract

The utility model relates to a kind of longitudinal beam assembly and vehicle, involve frame technical field, aim at solving how to improve the problem of longitudinal beam structure strength.Longitudinal beam assembly includes longitudinal beam and front end connecting component, the longitudinal beam includes first section and second section connected in sequence, the first section has first cavity, at least the first section and the second section are connected with breakable section;The front end connecting component includes first connecting piece and second connecting piece connected with each other, the first connecting piece is in the first cavity and is connected with the first section, the second connecting piece is outside the first cavity, and the second connecting piece is used to connect cross beam.

Description

Technical Field

[0001] This utility model relates to the field of vehicle frame technology, specifically to a longitudinal beam assembly and a vehicle. Background Technology

[0002] The chassis is the most important load-bearing component in a car, and the longitudinal beams of the chassis are one of the key components. Therefore, the longitudinal beams play an important load-bearing role in a car. Side beam chassis, center beam chassis, and other types of car chassis all contain longitudinal beams.

[0003] In related technologies, support members are often installed in the longitudinal beams to strengthen the web of the longitudinal beams, optimize and improve the collision performance requirements of the longitudinal beams, and enhance the overall structural strength of the longitudinal beams. However, this does not solve the problem of weak strength at the opening of the front cavity of the longitudinal beam, which makes it prone to collision fracture. Utility Model Content

[0004] This utility model provides a longitudinal beam assembly and a vehicle, aiming to solve the problem of how to improve the structural strength of the longitudinal beam.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] In a first aspect, embodiments of this application provide a longitudinal beam assembly, which includes a longitudinal beam and a front-end connecting component. The longitudinal beam includes a first segment and a second segment connected in sequence. The first segment has a first cavity, and at least a fracture-prone segment is connected between the first segment and the second segment. The front-end connecting component includes a first connector and a second connector that are connected to each other. The first connector is located inside the first cavity and connected to the first segment, while the second connector is located outside the first cavity and is used to connect to a crossbeam.

[0007] Based on the longitudinal beam assembly provided in this application embodiment, the first connector is located in the first cavity of the first segment. Thus, the first connector and the first segment of the longitudinal beam at least partially overlap, which is equivalent to the first connector reinforcing the thickness of part of the structure of the first segment. After the first connector and the first segment are connected, the first segment of the longitudinal beam is reinforced. Since the first segment of the longitudinal beam is reinforced by the first connector, the risk of the front end of the longitudinal beam breaking is reduced when the vehicle collides, so as to ensure that the easily breakable segment between the front end and the second segment breaks as expected to protect the occupants.

[0008] In some embodiments of this application, the first connector is configured as a tubular structure, and the first connector is at least partially arc-shaped along its own circumference, with the outer wall of the first connector fitting against the cavity wall of the first cavity.

[0009] Based on the above embodiments, the first connector is configured as a tubular structure. The outward curvature of the tubular structure enables it to withstand greater external forces from the longitudinal beam, and the first connector can better support the longitudinal beam when a vehicle collision occurs.

[0010] In some embodiments of this application, the end of the first connector away from the second connector is provided with a flange.

[0011] Based on the above embodiments, the flange further strengthens the structural strength of the first connector and improves the support capacity of the first connector for the longitudinal beam, that is, it improves the structural strength of the front end of the longitudinal beam.

[0012] In some embodiments of this application, the first connector is provided with reinforcing ribs, which are arranged along the circumference or radial direction of the first connector.

[0013] Based on the above embodiments, the reinforcing ribs enhance the structural strength of the first connector, thereby increasing the external force that the first connector can withstand and thus improving the first connector's support capacity for the longitudinal beam.

[0014] In some embodiments of this application, the second segment has a second cavity, the longitudinal beam assembly further includes a main reinforcing member and an auxiliary reinforcing member, the main reinforcing member is located in the second cavity and fits against the cavity wall of the second cavity, the main reinforcing member is connected to the longitudinal beam, the main reinforcing member has a third cavity; the auxiliary reinforcing member is located in the third cavity and is connected to the cavity wall of the third cavity.

[0015] Based on the above embodiments, the main reinforcing member is disposed in the second cavity of the second section of the longitudinal beam, and after being disposed in close contact with the cavity wall of the second cavity, it supports the second section of the longitudinal beam, thereby strengthening the structural strength of the second section of the longitudinal beam. In the event of a vehicle collision, the second section of the longitudinal beam is less likely to break, thus ensuring that the easily fractured section between the first and second sections breaks as intended. The auxiliary reinforcing member is disposed in the third cavity of the main reinforcing member, and after being connected to the cavity wall of the third cavity, it supports the main reinforcing member, thereby strengthening the structural strength of the main reinforcing member, that is, strengthening the structural strength of the second section of the longitudinal beam.

[0016] In some embodiments of this application, the auxiliary reinforcement includes a main body and a plurality of connecting portions distributed circumferentially along the main body, the plurality of connecting portions being connected to the cavity wall of the second cavity, and the auxiliary reinforcement being connected to the main body or at least one of the connecting portions.

[0017] Based on the above embodiments, multiple connecting parts can increase the connection area between the auxiliary reinforcing member and the main reinforcing member, thereby increasing the support range of the auxiliary reinforcing member for the main reinforcing member.

[0018] In some embodiments of this application, the suspension mount extends through the second section and the main reinforcement along the vehicle height direction, and the suspension mount is fixedly connected to the auxiliary reinforcement.

[0019] Based on the above embodiments, the suspension mount is used to connect the vehicle's shock absorber. Since the auxiliary reinforcement is fixed to the active reinforcement, the connection between the suspension mount and the auxiliary reinforcement achieves the fixation of the suspension mount. Furthermore, the suspension mount strengthens the structural strength of the auxiliary reinforcement, thereby strengthening the structural strength of the second section of the longitudinal beam.

[0020] In some embodiments of this application, the longitudinal beam further includes a third segment connected to the second segment, the third segment having a fourth cavity and a clearance opening communicating with the fourth cavity, the longitudinal beam assembly further including a subframe mounting member, the subframe mounting member being located within the fourth cavity and fixedly connected to the cavity wall of the fourth cavity, the subframe mounting member having a through hole for connecting the subframe, the through hole communicating with the clearance opening.

[0021] Based on the above embodiments, the subframe mounting component is used to connect the frame. The subframe mounting component is set in the cavity to hide the subframe mounting component, reducing the volume of the longitudinal beam assembly. After the subframe mounting component is connected to the fourth cavity of the third section, the subframe mounting component supports the longitudinal beam, improving the structural strength of the longitudinal beam.

[0022] In some embodiments of this application, the longitudinal beam assembly further includes a rear-end connector that extends through the third segment along the width direction of the vehicle and is fixedly connected to the third segment.

[0023] Based on the above embodiments, the rear connector enhances the structural strength of the third segment.

[0024] Secondly, embodiments of this application also provide a vehicle, the vehicle including a body and a longitudinal beam assembly as described above, the longitudinal beam assembly being fixed to the body.

[0025] The vehicle based on the embodiments of this application has stronger structural strength due to the aforementioned longitudinal beam assembly.

[0026] The beneficial effects of this utility model are:

[0027] 1. The first connector is located inside the cavity of the longitudinal beam. Thus, the first connector and the longitudinal beam partially overlap, which is equivalent to the first connector reinforcing the thickness of the longitudinal beam structure. Therefore, the connection between the first connector and the longitudinal beam strengthens the front end structure of the longitudinal beam.

[0028] 2. The first connector is set as a tubular structure. Since the tubular structure is an outwardly curved arc, it can withstand greater external forces from the longitudinal beam. When a vehicle collision occurs, the first connector can better support the longitudinal beam.

[0029] 3. This application provides a flange and a reinforcing rib on the first connector. The flange and the reinforcing rib further enhance the structural strength of the first connector, improve the supporting capacity of the first connector for the longitudinal beam, and thus improve the structural strength of the longitudinal beam. Attached Figure Description

[0030] Figure 1 This is a structural schematic diagram of the longitudinal beam assembly in some embodiments of this application.

[0031] Figure 2 for Figure 1 The diagram shows the structure of the longitudinal beam assembly after the outer plate has been removed.

[0032] Figure 3 for Figure 1 The diagram shows a structural schematic of the longitudinal beam assembly from another perspective.

[0033] Figure label:

[0034] 10. Longitudinal beam; 11. First section; 111. First cavity; 12. Second section; 121. Second cavity; 13. Third section; 131. Fourth cavity; 20. Front-end connecting assembly; 21. First connector; 22. Second connector; 221. Positioning component; 222. Connecting hole; 30. Main reinforcement; 31. Third cavity; 40. Auxiliary reinforcement; 50. Suspension mounting component; 60. Subframe mounting component; 70. Rear-end connector; 80. Headlight mounting bracket; 90. Horn mounting bracket. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0036] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0037] The chassis is the most important load-bearing component in a car, and the longitudinal beam is one of the key parts of the chassis. Therefore, the longitudinal beam plays an important load-bearing role in a car. The side beam type chassis and the center beam type chassis of a car both contain longitudinal beams.

[0038] In related technologies, to enhance the structural strength of longitudinal beams, support members are typically installed inside the longitudinal beams. These support members can optimize and improve the collision performance requirements of the longitudinal beam 10, as well as enhance the overall structural strength of the longitudinal beam. However, this does not address the problem of weak strength at the front cavity opening of the inner plate of the longitudinal beam, which makes it prone to collision fracture. If the front end of the longitudinal beam breaks during a vehicle collision, the longitudinal beam cannot collapse.

[0039] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0040] Firstly, please refer to Figure 1 and Figure 2 As shown, this application embodiment provides a longitudinal beam assembly, which includes a longitudinal beam 10 and a front-end connecting component 20. The longitudinal beam 10 includes a first segment 11 and a second segment 12 connected in sequence. The first segment 11 has a first cavity 111, and at least a fracture-prone section is connected between the first segment 11 and the second segment 12. The front-end connecting component 20 includes a first connector 21 and a second connector 22 connected to each other. The first connector 21 is located in the first cavity 111 and connected to the first segment 11, and the second connector 22 is located at the end of the first segment 11 away from the second segment 12.

[0041] The longitudinal beams 10 are located in the lower part of the engine compartment and are arranged along the length of the vehicle. The longitudinal beams 10 and the crossbeams together form the main frame of the chassis. When the vehicle is in motion, the longitudinal beams 10 provide body support and dynamic balance. In the event of a collision, they absorb energy through crumpling deformation to protect the safety of the occupants. It is understood that there are two longitudinal beams 10, arranged along the width of the vehicle.

[0042] The second connector 22 is used to connect the front collision beam; please refer to [reference needed]. Figure 3 As shown, in some embodiments of this application, the second connector 22 is configured as a plate-like structure, and a positioning element 221 is provided on the side of the second connector 22 away from the first connector 21. Correspondingly, a positioning hole is provided on the front collision beam. Given that there are two longitudinal beams 10, when the front collision beam and the second connector 22 are connected, the positioning element 221 passes through the positioning hole. The two positioning elements 221 can position the front collision beam and pre-attach the front collision beam to the two longitudinal beams 10.

[0043] Please refer to Figure 3As shown, in some embodiments of this application, the second connector 22 is provided with a plurality of connection holes 222 corresponding to the front collision beam, so that the second connector 22 and the front collision beam can be connected by bolts after being pre-installed through the positioning member 221 and the positioning holes.

[0044] Please refer to Figure 1 or Figure 2 As shown, in some embodiments of this application, a headlight mounting bracket 80 and a horn mounting bracket 90 are connected to the second connector 22. The headlight mounting bracket 80 and the horn mounting bracket 90 are located on the side of the second connector 22 facing the first connector 21, so as not to hinder the connection between the second connector 22 and the front collision beam.

[0045] Based on the longitudinal beam 10 provided in this application embodiment, the first connecting member 21 is located in the first cavity 111 of the first segment 11. Thus, the first connecting member 21 and the first segment 11 of the longitudinal beam 10 at least partially overlap, which is equivalent to the first connecting member 21 reinforcing the thickness of part of the structure of the first segment 11. After the first connecting member 21 and the first segment 11 are connected, the first segment 11 of the longitudinal beam 10 is reinforced. Since the first segment 11 of the longitudinal beam 10 is reinforced by the first connecting member 21, the risk of the front end of the longitudinal beam 10 breaking is reduced when the vehicle collides, so as to ensure that the easily breakable segment between the front end and the second segment 12 breaks as expected to protect the occupants.

[0046] Please refer to Figure 2 As shown, in some embodiments of this application, the first connector 21 is configured as a tubular structure, and the first connector 21 is at least partially arc-shaped along its own circumference, with the outer wall of the first connector 21 fitting against the cavity wall of the first cavity 111.

[0047] The first connector 21 is configured as a tubular structure. The outward curvature of the tubular structure enables it to withstand greater external forces from the longitudinal beam 10. In the event of a vehicle collision, the first connector 21 can better support the longitudinal beam 10.

[0048] It is understandable that the first connector 21 can be configured as a circular tube structure, in which case the first connector 21 provides the best support for the first segment 11.

[0049] In some embodiments of this application, the end of the first connector 21 away from the second connector 22 is provided with a flange. The flange further strengthens the structural strength of the first connector 21 and improves the support capacity of the first connector 21 for the longitudinal beam 10, that is, it improves the structural strength of the front end of the longitudinal beam 10.

[0050] It is understandable that the flange is configured as an inward flange, that is, the flange extends toward the axis of the first connector 21 so that the outer wall of the first connector 21 can fit against the cavity wall of the first cavity 111.

[0051] In some embodiments of this application, a reinforcing rib may also be provided in the first connector 21. The reinforcing rib is arranged along the circumference of the first connector 21 and is connected to the inner wall of the first connector 21. The number of reinforcing ribs can be configured to be multiple, and the multiple reinforcing ribs are arranged along the length direction of the longitudinal beam 10.

[0052] In some other embodiments of this application, the reinforcing ribs may also be arranged along the axial direction of the first connector 21.

[0053] In some other embodiments of this application, a portion is arranged along the axial direction of the first connector 21, and a portion is arranged along the circumferential direction of the first connector 21.

[0054] Please refer to Figure 2 As shown, in some embodiments of this application, the second segment 12 has a second cavity 121, and the longitudinal beam assembly further includes a main reinforcing member 30 and an auxiliary reinforcing member 40. The main reinforcing member 30 is located in the second cavity 121 and connected to the cavity wall of the second cavity 121. The main reinforcing member 30 is connected to the longitudinal beam 10, and the main reinforcing member 30 has a third cavity 31. The auxiliary reinforcing member 40 is located in the third cavity 31 and connected to the cavity wall of the third cavity 31.

[0055] The main reinforcing member 30 is disposed in the second cavity 121 of the second section 12 of the longitudinal beam 10. After the main reinforcing member 30 is disposed in close contact with the cavity wall of the second cavity 121, it supports the second section 12 of the longitudinal beam 10, thereby strengthening the structural strength of the second section 12 of the longitudinal beam 10. In the event of a vehicle collision, the second section 12 of the longitudinal beam 10 is less likely to break, thus ensuring that the easily fractured section between the first section 11 and the second section 12 breaks as intended. The auxiliary reinforcing member 40 is disposed in the third cavity 31 of the main reinforcing member 30. After connecting to the cavity wall of the third cavity 31, it supports the main reinforcing member 30, thereby strengthening the structural strength of the main reinforcing member 30, which in turn strengthens the structural strength of the second section 12 of the longitudinal beam 10.

[0056] The main reinforcing member 30 is used to strengthen the structural strength of the second section 12 of the longitudinal beam 10. In some embodiments of this application, the main reinforcing member 30 is configured as a channel-shaped structure, and the main reinforcing member 30 is disposed in close contact with part of the cavity wall of the second cavity 121. Thus, the main reinforcing member 30 has an opening for the auxiliary reinforcing member 40 to be assembled into the second cavity 121. Here, the channel-shaped structure refers to a long strip of steel with a U-shaped cross-section.

[0057] In some other embodiments of this application, the main reinforcing member 30 is configured as a tubular structure and fits against the cavity wall of the second cavity 121. In this case, the auxiliary reinforcing member 40 needs to be assembled into the third cavity 31 of the main reinforcing member 30 first, and then the main reinforcing member 30 needs to be assembled into the second cavity 121.

[0058] The auxiliary reinforcing member 40 is used to strengthen the structural strength of the main reinforcing member 30. In some embodiments of this application, the auxiliary reinforcing member 40 may be configured as a tubular structure.

[0059] In some other embodiments of this application, the auxiliary reinforcement 40 includes a main body and a plurality of connecting parts distributed circumferentially along the main body. The plurality of connecting parts are connected to the cavity wall of the second cavity 121, and the auxiliary reinforcement 40 is connected to the main body or at least one connecting part.

[0060] Multiple connecting parts can increase the connection area between the auxiliary reinforcing member 40 and the main reinforcing member 30, thereby increasing the support range of the auxiliary reinforcing member 40 for the main reinforcing member 30.

[0061] Please refer to Figure 2 As shown, in some embodiments of this application, the suspension mount 50 extends through the second section 12 and the main reinforcement 30 along the vehicle height direction, and the suspension mount 50 is fixedly connected to the auxiliary reinforcement 40.

[0062] The suspension mount 50 is used to connect the vehicle's shock absorber. Since the auxiliary reinforcement 40 is fixed to the active reinforcement, the connection between the suspension mount 50 and the auxiliary reinforcement 40 achieves the fixation of the suspension mount 50. Furthermore, the suspension mount 50 strengthens the structural strength of the auxiliary reinforcement 40, thereby strengthening the structural strength of the second section 12 of the longitudinal beam 10.

[0063] Please refer to Figure 2 As shown, in some embodiments of this application, the longitudinal beam 10 further includes a third segment 13 connected to the second segment 12. The third segment 13 has a fourth cavity 131 and a clearance opening communicating with the fourth cavity 131. The longitudinal beam assembly also includes a subframe mounting member 60, which is located in the fourth cavity 131 and fixedly connected to the cavity wall of the fourth cavity 131. The subframe mounting member 60 has a through hole for connecting the subframe, and the through hole communicates with the clearance opening.

[0064] The subframe mounting component 60 is used to connect the subframe. The subframe mounting component 60 is set in the cavity, which can hide the subframe mounting component 60, reduce the volume of the longitudinal beam assembly, and after the subframe mounting component 60 is connected to the cavity wall of the fourth cavity 131 of the third section 13, the subframe mounting component 60 supports the longitudinal beam 10, thereby improving the structural strength of the longitudinal beam 10.

[0065] In some embodiments of this application, there is also a fractured section between the second segment 12 and the third segment 13. The fractured section in this application can be a collapsible section or a bendable section, etc.

[0066] Please refer to Figure 2As shown, in some embodiments of this application, the longitudinal beam assembly further includes a rear-end connector 70, which extends through the third segment 13 along the width direction of the vehicle and is fixedly connected to the third segment 13.

[0067] In some embodiments of this application, the rear-end connector 70 is configured as a sleeve, and the hollow structure of the sleeve can reduce the weight of the longitudinal beam 10. It is understood that there can be multiple rear-end connectors 70, and the positions of the multiple rear-end connectors 70 on the third segment 13 can be arbitrarily set.

[0068] In some embodiments of this application, the first segment 11 includes a first inner plate and a first outer plate, the first inner plate and the first outer plate forming a first cavity 111, and a first connector 21 connecting at least one of the first inner plate and the first outer plate. In embodiments of this application, the first connector 21 is welded to the first inner plate.

[0069] In some embodiments of this application, the second segment 12 includes a second outer plate and a second inner plate, the second outer plate and the second inner plate forming a second cavity 121, the main reinforcing member 30 is connected to the second inner plate, and the suspension mounting member 50 passes through the second inner plate and the main reinforcing member 30. In the embodiments of this application, the main reinforcing member 30 is welded to the second inner plate.

[0070] In some embodiments of this application, the third segment 13 includes a third outer plate and a third inner plate, the third outer plate and the third inner plate forming a fourth cavity 131, the subframe mounting member 60 is mounted to the third inner plate, and the rear connecting member 70 connects the third inner plate and the third outer plate to realize the connection between the third inner plate and the third outer plate.

[0071] In some embodiments of this application, the first inner plate, the second inner plate, and the third inner plate are sequentially connected to form the inner plate of the longitudinal beam, and the first outer plate, the second outer plate, and the third outer plate are sequentially connected to form the inner plate of the longitudinal beam. Both the inner and outer plates of the longitudinal beam are configured with a groove-shaped structure, and the grooves of the inner and outer plates of the longitudinal beam are arranged opposite to each other. It is understood that the first cavity 111, the second cavity 121, the third cavity 31, and the third cavity 31 are interconnected.

[0072] Secondly, embodiments of this application also provide a vehicle, the vehicle including a body and the above-mentioned longitudinal beam assembly, the longitudinal beam assembly being fixed to the body.

[0073] The vehicle based on the embodiments of this application has stronger structural strength due to the aforementioned longitudinal beam assembly, which provides better protection for occupants.

[0074] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A longitudinal beam assembly, characterized in that, include: A longitudinal beam (10), the longitudinal beam (10) comprising a first segment (11) and a second segment (12) connected in sequence, the first segment (11) having a first cavity (111), and at least a fracture-prone section connecting the first segment (11) and the second segment (12); and, The front-end connection component (20) includes a first connector (21) and a second connector (22) that are connected to each other. The first connector (21) is located in the first cavity (111) and connected to the first segment (11). The second connector (22) is located at the end of the first segment (11) away from the second segment (12).

2. The longitudinal beam assembly according to claim 1, characterized in that, The first connector (21) is configured as a tubular structure, and the first connector (21) is at least partially arc-shaped along its own circumference, and the outer wall of the first connector (21) is attached to the cavity wall of the first cavity (111).

3. The longitudinal beam assembly according to claim 1, characterized in that, The first connector (21) has a flange at the end away from the second connector (22).

4. The longitudinal beam assembly according to claim 1, characterized in that, The first connector (21) is provided with reinforcing ribs, which are arranged along the circumference or radial direction of the first connector (21).

5. The longitudinal beam assembly according to claim 1, characterized in that, The second segment has a second cavity (121), and the longitudinal beam assembly further includes: A main reinforcing member (30) is located within the second cavity (121) and conforms to the cavity wall of the second cavity (121). The main reinforcing member (30) is connected to the longitudinal beam (10). The main reinforcing member (30) has a third cavity (31). An auxiliary reinforcing member (40) is located inside the third cavity (31) and is connected to the cavity wall of the third cavity (31).

6. The longitudinal beam assembly according to claim 5, characterized in that, The auxiliary reinforcing member (40) includes a main body and a plurality of connecting parts distributed circumferentially along the main body. The plurality of connecting parts are connected to the cavity wall of the second cavity (121). The auxiliary reinforcing member (40) is connected to the main body or at least one of the connecting parts.

7. The longitudinal beam assembly according to claim 5, characterized in that, Also includes: A suspension mount (50) extends through the second section (12) and the main reinforcement (30) along the vehicle height direction, and the suspension mount (50) is fixedly connected to the auxiliary reinforcement (40).

8. The longitudinal beam assembly according to claim 1, characterized in that, The longitudinal beam (10) further includes a third section (13) connected to the second section (12), the third section (13) having a fourth cavity (131) and a clearance opening communicating with the fourth cavity (131), and the longitudinal beam assembly further includes: A subframe mounting component (60) is located within the fourth cavity (131) and is fixedly connected to the cavity wall of the fourth cavity (131). The subframe mounting component (60) has a through hole for connecting the subframe, and the through hole communicates with the clearance opening.

9. The longitudinal beam assembly according to claim 8, characterized in that, Also includes: A rear-end connector (70) extends through the third segment (13) along the width direction of the vehicle and is fixedly connected to the third segment (13).

10. A vehicle, characterized in that, include: The longitudinal beam assembly according to any one of claims 1-9; as well as, The vehicle body is mounted on the longitudinal beam (10).

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