Motorcycle

Abstract

The application provides a motorcycle, comprising: a frame extending substantially in a front-rear direction, the frame comprising a main frame and a sub-frame; a driving assembly at least partially arranged in the frame; a transmission assembly at least partially connected to the driving assembly; a running assembly at least partially connected to the frame; a body covering member at least partially connected to the frame; the sub-frame comprising a first sub-frame, a front end of the first sub-frame being connected to the main frame; the first sub-frame comprising two structural members arranged substantially symmetrically in the front-rear direction, the two structural members being arranged substantially in a left-right direction, and in the left-right direction, a thickness of the structural member being arranged to be greater than or equal to 10 mm and less than or equal to 16 mm. The motorcycle has simple footrest structure and compact overall structure.

Description

Technical Field

[0001] This application relates to a vehicle, specifically a motorcycle. Background Technology

[0002] Motorcycles are increasingly favored by consumers as a type of riding vehicle. Their lightweight, agile, and fast characteristics make them widely used in riding, racing, and other fields. Motorcycles are mainly divided into street bikes, off-road bikes, cruisers, touring bikes, and road racing motorcycles.

[0003] Motorcycles generally consist of components or parts such as a frame, body panels, engine, suspension, and front and rear wheels. The frame, as the main supporting structure of the motorcycle, determines its size and the available space by its structural form and arrangement. Specifically, to accommodate components such as the engine and gearbox, the front of the motorcycle has a larger space, while the rear has a smaller space. Due to its unique structure, the footrests mounted on the rear of the frame are awkwardly positioned and structurally complex. How to provide a motorcycle with a simple footrest installation and a compact overall structure is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this application is to provide a motorcycle with a simple pedal structure and a compact overall structure.

[0005] To achieve the above objectives, this application provides a motorcycle, comprising: a frame extending substantially in a longitudinal direction, the frame including a main frame and a subframe; a drive assembly at least partially disposed in the frame; a transmission assembly at least partially connected to the drive assembly; a running gear assembly at least partially connected to the frame; a body panel at least partially connected to the frame; the subframe including a first subframe, the front end of the first subframe being connected to the main frame; the first subframe including two structural members arranged substantially symmetrically in the longitudinal direction, the two structural members being arranged substantially in the left-right direction, and in the left-right direction, the thickness of the structural members being greater than or equal to 10 mm and less than or equal to 16 mm.

[0006] Furthermore, the thickness of the structural component in the left-right direction is greater than or equal to 11 mm and less than or equal to 15 mm.

[0007] Furthermore, the subframe also includes a second subframe, the front end of which is connected to the first subframe. The second subframe is a tubular frame made of tubular components, and the ratio of the thickness of the structural components in the left-right direction to the diameter of the tubular components is greater than or equal to 0.48 and less than or equal to 0.72.

[0008] Furthermore, the ratio of the thickness of the structural component to the diameter of the pipe is greater than or equal to 0.54 and less than or equal to 0.66.

[0009] Furthermore, the structural component includes a first component and a second component. In the vertical direction, the first component is located above the second component and perpendicular to the extension direction of the first or second component. The cross-section of the first or second component is basically a semi-circular ring.

[0010] Furthermore, the inner sides of the first and second components are provided with reinforcing structures.

[0011] Furthermore, the reinforcing structure is reinforced with ribs or reinforcing blocks.

[0012] Furthermore, the structural component includes a first component and a second component, the second component including a pedal mounting structure, the pedal mounting structure being configured with two pedal fixing holes.

[0013] Furthermore, the foot pedal mounting structure and the second component are designed to be integrally molded.

[0014] Furthermore, the foot pedal mounting structure and the second component are integrated into a single forged piece.

[0015] This application achieves a simple pedal structure installation and a compact overall structure by setting two structural components that are basically symmetrically arranged in the front-to-back direction on the motorcycle frame, and setting the thickness of the structural components in the left-to-right direction to be greater than or equal to 10mm and less than or equal to 16mm. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a motorcycle in one embodiment of this application;

[0017] Figure 2 This is a schematic diagram of a motorcycle frame according to an embodiment of this application;

[0018] Figure 3 This is another schematic diagram of a motorcycle in an embodiment of this application;

[0019] Figure 4 This is a schematic diagram of a motorcycle riding triangle in an embodiment of this application;

[0020] Figure 5 This is another schematic diagram of the motorcycle riding triangle in the embodiments of this application;

[0021] Figure 6 This is a schematic diagram of a motorcycle subframe according to an embodiment of this application;

[0022] Figure 7 This is a top view of a motorcycle subframe according to an embodiment of this application;

[0023] Figure 8 This is a schematic diagram of a structural component on the first subframe in an embodiment of this application;

[0024] Figure 9 This is another schematic diagram of the structural component on the first subframe in the embodiments of this application;

[0025] Figure 10 This is a top view of a structural component on the first subframe in an embodiment of this application;

[0026] Figure 11 This is another schematic diagram of a motorcycle frame according to an embodiment of this application;

[0027] Figure 12 This is a schematic diagram of a motorcycle side bracket in one embodiment of this application;

[0028] Figure 13 This is another schematic diagram of a motorcycle in an embodiment of this application;

[0029] Figure 14 This is a schematic diagram of the structure of the first protrusion of a motorcycle in an embodiment of this application. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions in specific embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0031] Figure 1 A motorcycle 100 is shown. The motorcycle 100 includes a frame 11, a body panel 12, a seat assembly 13, a control assembly 14, a light assembly 15, an instrument assembly 16, a fuel supply system 17, a drive assembly 18, a transmission assembly 19, a running gear assembly 21, a suspension assembly 22, a braking assembly 23, and a cooling assembly 24. To clearly define the technical solution of this application, the following are also defined: Figure 1The front, rear, left, right, upper, and lower sides are described. The frame 11 forms the main frame of the motorcycle 100, and other components are directly or indirectly connected to the frame 11. The body panel 12 is located on the outside of the frame 11, covering most of the frame 11 and isolating other components within the frame 11 from the outside. The seat assembly 13 is connected to the frame 11 and adjacent to the body panel 12, providing seating for the driver and passenger. The control assembly 14 is at least partially connected to the frame 11 and allows the driver to operate the motorcycle 100. The headlight assembly 15 is connected to the frame 11. The instrument assembly 16 is connected to the handlebar assembly 141, located approximately in the center of the handlebar assembly 141, and provides the driver with relevant vehicle information. The fuel supply system 17 is at least partially connected to the frame 11 and provides fuel to the motorcycle 100. A drive assembly 18 is at least partially fixed to the frame 11 to provide driving force to the motorcycle 100. The drive assembly 18 includes an engine 181 and an exhaust pipe 182 for discharging exhaust gases produced after combustion in the motorcycle 100. A transmission assembly 19 is at least partially connected to the drive assembly 18 to receive and transmit the driving force output by the drive assembly 18. A running gear assembly 21 is at least partially connected to the frame 11 to move the frame 11. The running gear assembly 21 includes a first running wheel 211 and a second running wheel 212. The second running wheel 212 is a drive wheel and is connected to the transmission assembly 19 to receive the driving force transmitted by the transmission assembly 19. The first running wheel 211 is a driven wheel. A suspension assembly 22 is at least partially connected to the frame 11 to connect the running gear assembly 21 to the frame 11. The suspension assembly 22 includes a front shock absorber 221 connected to the first running wheel 211 for damping shocks. The braking assembly 23 is at least partially connected to the frame 11 and allows the rider to brake the motorcycle 100, including a brake caliper 231 and brake lines for transmitting braking force. The cooling assembly 24 is at least partially located within the frame 11 and is used to dissipate heat generated by the drive assembly 18 to the outside of the frame 11.

[0032] like Figures 3 to 5As shown, the seat assembly 13 includes a first seat 131 for the driver and a second seat 132 for the passenger. The control assembly 14 includes a handlebar assembly 141 for the driver to hold and operate the motorcycle 100, pedal assemblies 142 for the driver and passenger to step on, a shift assembly 143, and a handlebar switch 144 for the driver to operate. The pedal assembly 142 includes a first pedal 1421 for the driver and a second pedal 1422 for the passenger. The first reference point 101 is the driver's seating position on the first seat 131, the second reference point 102 is the center of symmetry of the handlebar 1411 along the left-right direction, and the third reference point 103 is the center of symmetry of the first pedal 1421 along the left-right direction. Connecting the first reference point 101, the second reference point 102, and the third reference point 103 forms a triangle, commonly known in the motorcycle industry as the motorcycle riding triangle. In the front-back direction, the second reference point 102 is located in front of the first reference point 101, the third reference point 103 is located in front of the first reference point 101, and the second reference point 102 is located in front of the third reference point 103. For example... Figure 4 As shown, in the front-rear direction, the distance S1 between the second reference point 102 and the first reference point 101 is greater than or equal to 568 mm and less than or equal to 695 mm; the distance S2 between the third reference point 103 and the first reference point 101 is greater than or equal to 121 mm and less than or equal to 149 mm; and the distance S3 between the second reference point 102 and the third reference point 103 is greater than or equal to 446 mm and less than or equal to 546 mm. Figure 5 As shown, in the vertical direction, the second reference point 102 is located above the third reference point 103, the second reference point 102 is located above the first reference point 101, and the first reference point 101 is located above the third reference point 103. Along the vertical direction, the distance S4 between the second reference point 102 and the third reference point 103 is greater than or equal to 654 mm and less than or equal to 800 mm; the distance S5 between the first reference point 101 and the third reference point 103 is greater than or equal to 447 mm and less than or equal to 547 mm; and the distance S6 between the second reference point 102 and the first reference point 101 is greater than or equal to 207 mm and less than or equal to 253 mm. The maximum power of the motorcycle 100 engine 181 is greater than or equal to 55 kW and less than or equal to 85 kW. The motorcycle 100 in this embodiment is a large-displacement, high-power motorcycle 100, which, with its strong power, also generates more heat in its drive assembly 18 engine 181.

[0033] The frame 11 includes a main frame 111 located at the front of the motorcycle 100 and a subframe 112 located at the rear of the motorcycle 100. The main frame 111 is mainly used to mount and support the drive assembly 18 of the motorcycle 100, and the subframe 112 is mainly used to mount and support the seat assembly 13 of the motorcycle 100 and at least part of the control system 25.

[0034] like Figure 6 As shown, in this implementation, the subframe 112 includes a first subframe 1121 and a second subframe 1122, wherein the first subframe 1121 is located at the front of the second subframe 1122. The first subframe 1121 is a forged frame, mainly composed of forged structural components. The second subframe 1122 is a tubular frame, formed by welding tubular components. The first subframe 1121 and the second subframe 1122 are connected together by welding. The first subframe 1121 includes structural components 1121a arranged substantially symmetrically about the front-rear direction. Structural components 1121a include a first component 1121b and a second component 1121c, with the structural components 1121a on both sides individually connected to the second subframe 1122. The first component 1121b is substantially located above the second component 1121c. The first component 1121b and the second component 1121c are connected together by a pipe 1121d. The first component 1121b and the pipe 1121d are connected together by welding. The second component 1121c and the pipe 1121d are also connected together by welding. On the structural component 1121a, the number of weld points when the first component 1121b and the second component 1121c are connected to the pipe 1121d is greatly reduced, which improves the overall rigidity and strength of the first subframe 1121.

[0035] like Figure 7As shown, the first component 1121b includes a first mounting portion 1121e connected to the main frame 111. The distance between the first mounting portions 1121e of the two first components 1121b is a first distance D1. In the motorcycle 100, the space inside the frame 11 is already quite compact. If the diameter of the tubing is increased to increase the strength of the frame 11, the space inside the frame 11 will inevitably become even smaller, affecting the installation space of various mechanisms within the frame 11. Forged parts, due to the advantages brought by the processing technology, have higher overall rigidity and strength. Under the same overall rigidity and strength requirements, forged components have smaller dimensions, especially smaller thickness in the lateral direction, which can reduce the space they occupy. The position of the first subframe 1121 is the position where the rider's legs are clamped when riding the motorcycle 100. If this position is too wide, it will affect the rider's riding comfort and also reduce the rider's control over the motorcycle 100. Using a casting as the first subframe 1121 can reduce the space occupied by the first subframe 1121 within the frame 11, providing more ample installation space for electrical components, structural components 1121a, and other mechanisms that need to be installed in this area. At the same time, it can also reduce the frame size of the first subframe 1121, reduce the width of the clamping part of the motorcycle 100, and increase the driver's control over the motorcycle 100.

[0036] The subframe 112 typically has numerous mounting points, requiring a multitude of mounting structures. Installing mounting structures on a tubular frame necessitates welding these structures to the corresponding locations on the tubular frame. For small or lightweight mechanisms, the aforementioned welding-on-the-tubular frame mounting structures, due to their smaller size and weight, have lower requirements for rigidity and strength, enabling stable installation. However, for larger or heavier mechanisms, the aforementioned welding-on-the-tubular frame mounting structures often fail to meet the required rigidity and strength. Forged parts possess inherent high overall strength and rigidity. Furthermore, during forging, the corresponding mounting structures can be pre-designed and manufactured concurrently with the forging process. This eliminates the need for post-processing methods such as welding to install mounting structures on the forging, increasing the integration between the mounting structure and the forging. It also significantly reduces the number of welded areas, minimizing strength reduction issues caused by welding. While enhancing the strength of the mounting structure, it also enhances the connection strength between the mounting structure and the casting itself, ensuring that large-sized or heavy mechanisms can be stably mounted on the first subframe 1121.

[0037] Since the second subframe 1122 is located primarily at the rear of the motorcycle 100, and its top is typically used for mounting the seat, it usually has ample space. Therefore, using a tubular frame with a relatively large size can meet the space requirements. Due to the relatively large space, numerous interconnected structures are installed on the second subframe 1122, forming a frame structure where the tubular components are interconnected, thus ensuring its overall rigidity and strength. The second subframe 1122 is a tubular frame, manufactured by welding tubular materials. The second subframe 1122 includes a first protrusion 1122a distributed along the left-right direction and protruding outward from the frame. Viewed from top to bottom, the second subframe 1122 is essentially spindle-shaped. The maximum width of the first protrusion 1122a along the left-right direction is a second distance D2, which is greater than or equal to 299 mm and less than or equal to 449 mm. Further, the second distance D2 is greater than or equal to 336 mm and less than or equal to 412 mm. Furthermore, the second distance D2 is greater than or equal to 355 mm and less than or equal to 393 mm. The ratio of the second distance D2 to the first distance D1 is greater than or equal to 1.8 and less than or equal to 2.8. Furthermore, the ratio of the second distance D2 to the first distance D1 is greater than or equal to 2 and less than or equal to 2.6. Furthermore, the ratio of the second distance D2 to the first distance D1 is greater than or equal to 2.15 and less than or equal to 2.45. In the front-rear direction, the distance between the first mounting point and the first protrusion 1122a is greater than or equal to 304 mm and less than or equal to 456 mm. Furthermore, in the front-rear direction, the distance between the first mounting point and the first protrusion 1122a is greater than or equal to 342 mm and less than or equal to 418 mm. Furthermore, in the front-rear direction, the distance between the first mounting point and the first protrusion 1122a is greater than or equal to 361 mm and less than or equal to 499 mm. The above settings can increase the internal space of the subframe, optimize the internal space layout of the vehicle body, and thus achieve the best operating condition and appearance of the motorcycle 100.

[0038] like Figure 8 As shown, the first subframe 1121 includes two structural components 1121a that are substantially symmetrical in the longitudinal direction. Structural component 1121a includes a first component 1121b and a second component 1121c, both of which are forged parts. Figure 9As shown, the cross-sections of the first component 1121b and the second component 1121c are basically semi-circular. The inner sides of the first component 1121b and the second component 1121c are provided with a hollow structure 1121d and a reinforcing structure 1121e. The hollow structure reduces the weight of the first component 1121b and the second component 1121c, while also saving raw materials during manufacturing and reducing production costs. Based on the hollow structure, reinforcing structures are provided at appropriate locations to enhance the overall strength and rigidity of the first component 1121b and the second component 1121c. These reinforcing structures are typically stiffeners or reinforcing blocks. The hollow structure and the reinforcing structure work together to minimize the strength and size of the first component 1121b and the second component 1121c while ensuring the overall rigidity and strength requirements. Figure 10 As shown, the thickness H1 of the first component 1121b in the left-right direction is greater than or equal to 10 mm and less than or equal to 16 mm. The thickness of the second component 1121c in the left-right direction is basically the same as the thickness H1 of the first component 1121b in the left-right direction. The ratio of the thickness H1 of the first component 1121b in the left-right direction to the diameter of the tube on the second subframe 1122 is greater than or equal to 0.48 and less than or equal to 0.72. Further, the thickness H1 of the first component 1121b in the left-right direction is greater than or equal to 11 mm and less than or equal to 15 mm. The ratio of the thickness H1 of the first component 1121b in the left-right direction to the diameter of the tube on the second subframe 1122 is greater than or equal to 0.54 and less than or equal to 0.66. Furthermore, the thickness H1 of the first component 1121b in the left-right direction is greater than or equal to 12mm and less than or equal to 14mm, and the ratio of the thickness H1 of the first component 1121b in the left-right direction to the diameter of the tube on the second subframe 1122 is greater than or equal to 0.57 and less than or equal to 0.63, thereby shortening the size of the leg clamping position when the user is riding and increasing the user's comfort. The first component 1121b and the second component 1121c are also provided with at least one mounting structure for mounting other parts of the motorcycle 100. These mounting structures are integrally formed with the first component 1121b or the second component 1121c, avoiding the weld seams that would occur when fixing the first component 1121b or the second component 1121c by welding. This avoids the problem of weld seams affecting the strength and rigidity of the overall mechanism and also improves the impact of weld seams on the appearance.

[0039] like Figure 8As shown, a pedal mounting structure 1121d is also provided on the second component 1121c. Specifically, the pedal mounting structure 1121d consists of at least two pedal fixing holes 1121e arranged along the second component 1121c. In this embodiment, the pedal mounting structure 1121d and the second component 1121c are forged together, forming a single piece. The design and manufacturing process addresses the issue of fitting accuracy between the pedal mounting structure 1121d and the second component 1121c. Once the casting mold is determined, the produced parts will not have large fitting errors, ensuring accurate pedal installation. This eliminates the need for the two components to be formed separately before fitting, thus solving the problem of requiring high welding precision between the two components.

[0040] like Figure 11 As shown, the main frame 111 includes a side bracket mounting base 1112 for mounting the side bracket 1111 of the motorcycle 100, and the side bracket 1111 is rotatably connected to the side bracket mounting base 1112. In this embodiment, the side bracket mounting base 1112 is integrally formed using a forging manufacturing process. Specifically, the side bracket mounting base 1112 is connected to the main frame 111 by fasteners, avoiding the problem of reduced rigidity and strength of the side bracket mounting base 1112 after welding. At the same time, compared to welding, fastener connection also reduces the installation steps of the side bracket mounting base 1112, lowers assembly difficulty, and improves the production efficiency of the frame 11. Furthermore, as... Figure 12 As shown, the side bracket mounting base 1112 is provided with a side bracket mounting position 1112a for mounting the side bracket 1111, a sprocket cover mounting position 1112b for mounting the sprocket cover, and a pedal mounting position 1112c for mounting the pedals. Integrating these mounting positions onto the side bracket mounting base 1112 achieves functional integration, improves the integration level of the side bracket mounting base 1112, and makes its structure more compact. The one-piece forging process also avoids positional and dimensional errors in the mounting positions on the side bracket mounting base 1112, ensuring subsequent assembly accuracy.

[0041] like Figure 12As shown, the side bracket 1111 includes a side bracket mounting point 1111a, which corresponds to and matches the side bracket mounting position on the side bracket mounting base 1112. The side bracket 1111 is fixed to the side bracket by the mutual cooperation of the side bracket mounting point 1111a and the side bracket mounting position, and is secured to the side bracket by fasteners. The side bracket 1111 can rotate around the axis of the side bracket mounting point 1111a. The side bracket 1111 includes a side bracket base 1111b for supporting the motorcycle 100 in the parked state and a kick part 1111c for facilitating the driver to put the side bracket 1111 into the parked state. In this embodiment, the side bracket 1111 is integrally formed by a forging process. The side bracket 1111 in this embodiment is integrally formed by forging, avoiding the problem of reduced strength and rigidity caused by welding. Simultaneously, the side bracket 1111 is made of high-strength forged aluminum alloy, possessing high strength. Even for a motorcycle 100 with a relatively large body weight, it can provide good support, preventing the motorcycle 100 from tipping over. The side bracket 1111 in this embodiment includes a side bracket mounting point 1111a connected to the side bracket mounting position, a side bracket base 1111b, and a kickstand 1111c. Along the extending direction of the side bracket 1111, the size of the side bracket base 1111b is larger than the size of the side bracket 1111. The extending direction of the kickstand 1111c is substantially perpendicular to the extending direction of the side bracket 1111. Due to the high strength of the integrally forged high-strength aluminum alloy, while meeting the strength requirements of the side bracket 1111, the thickness of the side bracket 1111 can be appropriately reduced, decreasing the space occupied by the side bracket 1111 and making the side bracket 1111 and the frame 11 more compact. The one-piece forging process also avoids errors in the position and size of the side bracket mounting point 1111a on the side bracket 1111. In addition, the aluminum alloy material can be anodized, which can provide better rust prevention and also give the side bracket 1111 more colors, enhancing the aesthetics of the side bracket 1111 and the motorcycle 100.

[0042] In this implementation, the subframe 112 is generally spindle-shaped in the front-rear direction. Specifically, the second subframe 1122 within the subframe 112 is spindle-shaped, and more specifically, the first frame portion of the second subframe 1122 is spindle-shaped. For example... Figure 13As shown, since more space is needed on the second subframe 1122 to house the electrical components of the motorcycle 100, the rear of the second subframe 1122 in this embodiment is widened, resulting in a prominent first protrusion 1122a. The body panel 12 has a through-hole through which the first protrusion 1122a passes, meaning the first protrusion 1122a is exposed on the body panel 12. In the left-right direction, the protrusion has a first width, and the body panel has a second width; the ratio of the first width to the second width is set to be greater than or equal to 0 and less than or equal to 0.1. This arrangement allows the side of the motorcycle to simultaneously include a plastic body panel 12 and a portion of the metal second subframe 1122, enhancing the overall sense of layering of the motorcycle 100. Furthermore, different colors can be personalized on the first protrusion 1122a to improve the overall quality of the motorcycle. While exposing the chassis allows for increased internal space in the second subframe 1122 without increasing the vehicle's width, this direct exposure creates an opening in the body panel 12 at the second subframe 1122 location. The body panel 12 cannot completely cover the chassis 11, affecting its waterproof and dustproof performance, particularly in the area of ​​the second subframe 1122. Since the second subframe 1122 houses numerous electrical components, weakened waterproof and dustproof performance significantly impacts the safety and lifespan of these components.

[0043] like Figure 14As shown, to address the issue of degraded waterproof and dustproof performance caused by the exposed portion of the second subframe 1122, this application implements an inner liner 121 in the exposed portion of the second subframe 1122. The body panel 12 includes a first trim piece 122 and a second trim piece 123 in the area surrounding the first protrusion 1122a, where the first protrusion 1122a includes a frame tube 1122e. Vertically, the first trim piece 122 is located above the frame tube 1122e, and the second trim piece 123 is located below the frame tube 1122e. Horizontally, at least a portion of the first trim piece 122 is located on the outside of the frame tube 1122e, and at least a portion of the second trim piece 123 is located on the outside of the frame tube 1122e. The inner liner 121 is connected to the frame tube 1122e, the first trim piece 122, and the second trim piece 123. An inner liner 121 is installed inside the exposed frame tube 1122e, which serves to shield the internal structure of the frame 11 and also provides dust and water protection. It prevents dust and rainwater from entering the frame 11 through the exposed first protrusion 1122a, protecting the electrical components inside the frame 11 from rain and dust intrusion and ensuring their safe and reliable operation. Simultaneously, the inner liner 121 secures the first trim piece 122 and the second trim piece 123 together and to the first protrusion 1122a, thus fixing the first trim piece 122 and the second trim piece 123 in place. When the motorcycle 100 is running, the frame 11 will vibrate. If the body panel 12 is not properly secured to the frame 11, friction will occur between the frame 11 and the body panel 12 due to vibration, resulting in annoying noises and even wear on the body panel 12 or the frame 11. Once the first trim piece 122 and the second trim piece 123 are fixed, friction will not occur due to vehicle body vibration, preventing abnormal noise caused by friction between the first trim piece 122 and the second trim piece 123 and the frame 11. The inner liner 121 is fixed to the frame 11 tube by fasteners. The first trim piece 122 is connected to the inner liner 121 by plugging in the connector 1221, and the second trim piece 123 is connected to the inner liner 121 by snapping in the connector 1231. During vehicle assembly, the body panel 12 is usually installed in the final stage. In the implementation of this application, the inner liner 121 is pre-connected to the frame tube 1122e. At this time, the installation space is large and the inner liner 121 is a separate component, so fasteners with more complex installation but higher connection strength can be used for connection. The first trim piece 122 and the second trim piece 123 are relatively large and the installation space is small during installation, so simpler methods such as plugging and snapping are used for connection. The first decorative piece 122 is located above the inner lining piece 121, and its top-down insertion provides better convenience and higher stability after installation. The second decorative piece 123 is located outside the inner lining piece 121, and its outside-in snap-fit ​​provides better convenience and higher stability after installation.In the front-to-back direction, the length of the inner lining 121 is greater than or equal to the length of the opening formed by the first ornament 122 and the second ornament 123. In the vertical direction, the height of the inner lining 121 is greater than or equal to the height of the opening formed by the first ornament 122 and the second ornament 123.

[0044] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A motorcycle, comprising: A chassis, which extends substantially in a longitudinal direction, and includes a main chassis and a subframe; A drive assembly, which is at least partially disposed in the vehicle frame; A transmission assembly, which is at least partially connected to the drive assembly; A running gear assembly, which is at least partially connected to the vehicle frame; A body panel, said body panel being at least partially connected to the vehicle frame; Its features are: The subframe includes a first subframe, the front end of which is connected to the main frame; The first subframe includes two structural components arranged symmetrically along the front-rear direction and arranged substantially along the left-right direction. In the left-right direction, the thickness of the structural components is set to be greater than or equal to 10 mm and less than or equal to 16 mm. The structural components include a first component and a second component, both of which are forged parts. In the vertical direction, the first component is located above the second component and perpendicular to the extension direction of the first component or the second component. The cross-section of the first component and the second component is substantially semi-circular. The first component and the second component are connected together by a tube. The subframe also includes a second subframe, the front end of which is connected to the first subframe. The second subframe is a tubular frame made of tubular components, and the ratio of the thickness of the structural component in the left-right direction to the diameter of the tubular component is greater than or equal to 0.48 and less than or equal to 0.

72.

2. The motorcycle according to claim 1, characterized in that: The thickness of the structural component in the left-right direction is greater than or equal to 11 mm and less than or equal to 15 mm.

3. The motorcycle according to claim 1, characterized in that: The ratio of the thickness of the structural component to the diameter of the pipe is greater than or equal to 0.54 and less than or equal to 0.

66.

4. The motorcycle according to claim 1, characterized in that: The inner sides of the first component and the second component are provided with reinforcing structures.

5. The motorcycle according to claim 4, characterized in that: The reinforcing structure is a reinforcing rib or a reinforcing block.

6. The motorcycle according to claim 1, characterized in that: The structural component includes a first component and a second component. The second component includes a pedal mounting structure, which is configured with two pedal fixing holes.

7. The motorcycle according to claim 6, characterized in that: The foot pedal mounting structure and the second component are integrally formed.

8. The motorcycle according to claim 6, characterized in that: The pedal mounting structure and the second component are integrally formed by forging.

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