Rear rocker arm assembly

Abstract

The utility model provides a rear rocker arm assembly. The rear rocker arm assembly is arranged on the motorcycle. The rear rocker arm assembly comprises a first rocker arm and a second rocker arm. The first rocker arm comprises a first longitudinal structure and a first reinforcing structure, the first longitudinal structure comprises a first outer side and a first inner side, and the first reinforcing structure is formed on the first outer side. The second rocker arm is connected with the first rocker arm, the second rocker arm comprises a second longitudinal structure and a second reinforcing structure, the second longitudinal structure comprises a second outer side and a second inner side, the first inner side is opposite to the second inner side, the first outer side is opposite to the second outer side, and the second reinforcing structure is formed on the second outer side.

Description

Technical Field

[0001] The utility model relates to a rear swing - arm assembly, and particularly to a rear swing - arm assembly of a motorcycle. Background Art

[0002] The rear swing - arm is part of the motorcycle suspension system. In some existing models, the rear swing - arm connects the frame and the rear wheel. In other existing models, the rear swing - arm connects the engine and the rear wheel. In most cases, the rear swing - arm works in cooperation with the rear shock absorber to absorb and relieve the impact from the road surface and provide a comfortable riding experience. However, to meet the requirements of rigidity and reliability, it is difficult to reduce the size and weight of the rear swing - arm, resulting in a heavier overall vehicle weight and higher cost. Summary of the Utility Model

[0003] An embodiment of the utility model provides a rear swing - arm assembly to solve the problems of the existing technology. The rear swing - arm assembly is arranged on a motorcycle. The rear swing - arm assembly includes a first swing - arm and a second swing - arm. The first swing - arm includes a first longitudinal structure and a first reinforcement structure. The first longitudinal structure includes a first outer side and a first inner side, and the first reinforcement structure is formed on the first outer side. The second swing - arm is connected to the first swing - arm. Among them, the second swing - arm includes a second longitudinal structure and a second reinforcement structure. The second longitudinal structure includes a second outer side and a second inner side. The first inner side is opposite to the second inner side, and the first outer side is contrary to the second outer side. The second reinforcement structure is formed on the second outer side.

[0004] In one embodiment, the first swing - arm includes a front section, a middle section, and a rear section. The front section is connected to an engine of the motorcycle. The middle section is connected to the front section and the rear section, and the middle section is also connected to the second swing - arm. The rear section is connected to a rear wheel of the motorcycle.

[0005] In one embodiment, the position of the first inner side corresponding to the rear section does not have a reinforcement structure.

[0006] In one embodiment, the first reinforcement structure includes a front upper flange, a rear upper flange, and a lower flange. The front upper flange extends along the front section and the middle section. The rear upper flange extends along the rear section. The lower flange extends along the front section, the middle section, and the rear section.

[0007] In one embodiment, the first reinforcement structure further includes a main rib. The main rib extends along the front section and the middle section, and the main rib is located between the front upper flange and the lower flange.

[0008] In one embodiment, the tail end of the main rib is connected to the front end of the rear upper flange.

[0009] In one embodiment, the tail end of the front upper flange is also connected to the front end of the rear upper flange.

[0010] In one embodiment, the first rocker arm further includes a front pivot portion which is rotatably connected to the engine. The front pivot portion is located at the front section, and the front end of the main rib is connected to the front pivot portion.

[0011] In one embodiment, the first reinforcement structure further includes a plurality of front reinforcement ribs and a plurality of rear reinforcement ribs. At least some of the front reinforcement ribs are formed between the main rib and the front upper flange, at least some of the front reinforcement ribs are formed between the main rib and the lower flange, and the rear reinforcement ribs are formed between the rear upper flange and the lower flange.

[0012] In one embodiment, the first rocker arm further includes a shock absorber pivot portion which is located at the middle section. The motorcycle further includes a frame and a shock absorber. One end of the shock absorber is connected to the frame, and the other end of the shock absorber is connected to the shock absorber pivot portion through a connecting rod.

[0013] In an embodiment of the present utility model, since the first reinforcement structure is formed on the first outer side and the second reinforcement structure is formed on the second outer side. Therefore, the distance between the first longitudinal structure and the second longitudinal structure can be shortened, thereby enhancing the overall structural rigidity of the rear swing arm assembly. Overall, compared with the prior art, the size and weight of the rear swing arm assembly in the embodiment of the present utility model can be reduced, cost can be saved, and the space utilization rate in the motorcycle design can also be improved. Brief Description of the Drawings

[0014] Figure 1 Is a perspective view of the rear swing arm assembly according to an embodiment of the present utility model.

[0015] Figure 2 Is a top view of the rear swing arm assembly according to an embodiment of the present utility model.

[0016] Figure 3 Is Figure 2 A sectional view taken along the direction III-III in

[0017] Figure 4 Is an exploded view of a partial structure of the motorcycle according to an embodiment of the present utility model.

[0018] Figure 5 Is another perspective view of the rear swing arm assembly according to an embodiment of the present utility model.

[0019] Description of the Main Element Symbols:

[0020] R: Rear swing arm assembly

[0021] 1: First rocker arm

[0022] 101: Front section

[0023] 102: Middle section

[0024] 103: Rear section

[0025] 11: First longitudinal structure

[0026] 11A: First outer side

[0027] 11B: First inner side

[0028] 12: First reinforcement structure

[0029] 121: Front upper flange

[0030] 122: Rear upper flange

[0031] 123: Lower flange

[0032] 124: Main rib

[0033] 125: Front reinforcement rib

[0034] 126: Rear reinforcement rib

[0035] 13: Front pivot part

[0036] 14: Shock absorber pivot part

[0037] 2: Second swing arm

[0038] 21: Second longitudinal structure

[0039] 21A: Second outer side

[0040] 21B: Second inner side

[0041] 22: Second reinforcement structure

[0042] 3: Engine

[0043] 4: Rear wheel

[0044] 51: Frame

[0045] 52: Shock absorber

[0046] 53: Connecting rod

[0047] 54: Cover Detailed implementation manner

[0048] In one embodiment, the motorcycle of the embodiment of the present utility model includes elements such as a handlebar, a front wheel, a rear wheel, a seat, and a power system.

[0049] The motorcycle includes parts such as the front section, middle section, and rear section. The front section of the motorcycle is provided with components such as a handlebar, front wheel, direction lights, and keyhole. The middle section of the motorcycle is provided with components such as a power system, seat, and footrest. The rear section of the motorcycle is provided with components such as a taillight, rear wheel, and fender.

[0050] The handlebar is used to control the traveling direction of the motorcycle. Functional parts can be installed on the handlebar, including units such as an instrument panel, switches, and rearview mirrors. The handlebar also has a grip (including a throttle grip) and a handbrake. The user can control the steering of the handlebar through the grip, adjust the throttle angle of the power system through the throttle grip to control the power output, and decelerate the motorcycle through the handbrake. A main headlight can also be installed on the handlebar, and the main headlight provides the main light illumination for the motorcycle.

[0051] The handlebar and the front wheel are linked by a handlebar rotation shaft. Thus, by rotating the handlebar, the angle of the front wheel can be controlled, thereby controlling the traveling direction of the motorcycle.

[0052] The power system is connected to and drives the rear wheel, thereby providing power for the motorcycle to make it move forward.

[0053] Figure 1 This is a perspective view of the rear swing arm assembly according to an embodiment of the present invention. Figure 2 This is a top view of the rear swing arm assembly according to an embodiment of the present invention. Figure 3 is Figure 2 The sectional view taken along the direction III-III in Figure 1 、 Figure 2 、 Figure 3 In combination with

[0054] In an embodiment of the present invention, since the first reinforcing structure is formed on the first outer side, and the second reinforcing structure is formed on the second outer side. Therefore, the mold design and the technical difficulty of mold opening can be simplified, so that the distance between the first longitudinal structure and the second longitudinal structure can be shortened.

[0055] Figure 4 This is an exploded view of a partial structure of the motorcycle according to an embodiment of the present utility model. Referring to Figure 1 、 Figure 2 、 Figure 4 , in one embodiment, the first rocker arm 1 includes a front section 101, a middle section 102, and a rear section 103. The front section 101 is connected to an engine 3 of the motorcycle. The middle section 102 is connected to the front section 101 and the rear section 103. The middle section 102 is also connected to the second rocker arm 2. The rear section 103 is connected to a rear wheel 4 of the motorcycle.

[0056] Referring to Figure 1 、 Figure 2 , in one embodiment, the first inner side 11B does not have a reinforcing structure at the position corresponding to the rear section 103. In the embodiments and claims of the present utility model, the "not having a reinforcing structure" means not having a structure such as a reinforcing rib or a flange for overall structural reinforcement. In one embodiment, there may still be formed structures such as a connecting portion or a locking portion at the position of the first inner side 11B corresponding to the rear section 103. The above disclosure does not limit the present utility model.

[0057] Referring to Figure 1 、 Figure 2 , in one embodiment, the first reinforcing structure 12 includes a front upper flange 121, a rear upper flange 122, and a lower flange 123. The front upper flange 121 extends along the front section 101 and the middle section 102. The rear upper flange 122 extends along the rear section 103. The lower flange 123 extends along the front section 101, the middle section 102, and the rear section 103.

[0058] Referring to Figure 1 、 Figure 2 , in one embodiment, the first reinforcing structure 12 further includes a main rib 124. The main rib 124 extends along the front section 101 and the middle section 102. The main rib 124 is located between the front upper flange 121 and the lower flange 123.

[0059] Referring to Figure 1 , in one embodiment, the tail end of the main rib 124 is connected to the front end of the rear upper flange 122. Thereby, the structural strength of the first rocker arm 1 can be enhanced.

[0060] Referring to Figure 1 , in one embodiment, the tail end of the front upper flange 121 is also connected to the front end of the rear upper flange 122. Thereby, the structural strength of the first rocker arm 1 can be enhanced.

[0061] Referring to Figure 1 、 Figure 2 、Figure 4 In one embodiment, the first rocker arm 1 further includes a front pivot portion 13 which is rotatably connected to the engine 3. The front pivot portion 13 is located at the front section 101, and the front end of the main rib 124 is connected to the front pivot portion 13. Thereby, the structural strength of the first rocker arm 1 can be enhanced.

[0062] Refer to Figure 1 In one embodiment, the first reinforcing structure 12 further includes a plurality of front reinforcing ribs 125 and a plurality of rear reinforcing ribs 126. At least some of the front reinforcing ribs 125 are formed between the main rib 124 and the front upper flange 121, at least some of the front reinforcing ribs 125 are formed between the main rib 124 and the lower flange 123, and the rear reinforcing ribs 126 are formed between the rear upper flange 122 and the lower flange 123.

[0063] Figure 5 Another perspective three-dimensional view of the rear rocker arm assembly according to an embodiment of the present invention. Refer to Figure 2 and Figure 4 and Figure 5 In one embodiment, the first rocker arm 1 further includes a shock absorber pivot portion 14 which is located at the middle section 102. The motorcycle further includes a vehicle frame 51 and a shock absorber 52. One end of the shock absorber 52 is connected to the vehicle frame 51, and the other end of the shock absorber 52 is connected to the shock absorber pivot portion 14 through a connecting rod 53.

[0064] In one embodiment of the present invention, at least part of the design of the second rocker arm is similar to that of the first rocker arm. For example, the second reinforcing structure is similar to the first reinforcing structure, so the details are not repeated here. However, the above disclosure does not limit the present invention. For example, in another embodiment, the second reinforcing structure may also be different from the first reinforcing structure.

[0065] Refer to Figure 4 In one embodiment, the motorcycle further includes a cover 54 which is locked and fixed on the first rocker arm 1.

[0066] In an embodiment of the present invention, since the first reinforcing structure is formed on the first outer side and the second reinforcing structure is formed on the second outer side. Therefore, the distance between the first longitudinal structure and the second longitudinal structure can be shortened, thereby enhancing the overall structural rigidity of the rear rocker arm assembly. Generally speaking, compared with the prior art, the size and weight of the rear rocker arm assembly according to the embodiment of the present invention can be reduced, cost can be saved, and the space utilization rate in the motorcycle design can also be improved.

[0067] In an embodiment of the present invention, the motorcycle defined by the present invention may include a fuel motorcycle, an electric motorcycle or other motor vehicles.

[0068] Although the present utility model has been disclosed above with specific preferred embodiments, it is not intended to limit the present utility model. Those skilled in the art can still make some modifications and refinements without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the scope defined by the scope of protection required in the patent application documents.

Claims

1. A rear swing arm assembly, provided on a motorcycle, characterized in that: include: a first rocker arm, wherein the first rocker arm comprises a first longitudinal structure and a first reinforcement structure, the first longitudinal structure comprises a first outer side and a first inner side, and the first reinforcement structure is formed on the first outer side; and A second rocker arm is connected to the first rocker arm, wherein the second rocker arm includes a second longitudinal structure and a second reinforcement structure, the second longitudinal structure includes a second outer side and a second inner side, the first inner side is relative to the second inner side, the first outer side is opposite to the second outer side, and the second reinforcement structure is formed on the second outer side.

2. The rear swing arm assembly according to claim 1, characterized in that: The first rocker arm includes a front section, a middle section and a rear section, the front section is connected to an engine of the motorcycle, the middle section is connected to the front section and the rear section, the middle section is also connected to the second rocker arm, and the rear section is connected to a rear wheel of the motorcycle.

3. The rear swing arm assembly according to claim 2, characterized in that: The first inner side has no reinforcement structure at a position corresponding to the rear section.

4. The rear swing arm assembly according to claim 2, characterized in that: The first reinforcement structure includes a front upper flange, a rear upper flange and a lower flange, the front upper flange extends to the front section and the middle section, the rear upper flange extends to the rear section, and the lower flange extends to the front section, the middle section and the rear section.

5. The rear swing arm assembly according to claim 4, characterized in that: The first reinforcement structure further includes a main rib extending from the front section and the middle section, and the main rib is located between the front upper flange and the lower flange.

6. The rear swing arm assembly according to claim 5, characterized in that: The rear end of the main rib is connected to the front end of the rear upper flange.

7. The rear swing arm assembly according to claim 6, characterized in that: The rear end of the front upper flange is also connected to the front end of the rear upper flange.

8. The rear swing arm assembly according to claim 6, characterized in that: The first rocker arm further comprises a front pivoting portion, which is rotatably connected to the engine. The front pivoting portion is located at the front section, and the front end of the main rib is connected to the front pivoting portion.

9. The rear swing arm assembly according to claim 6, characterized in that: The first reinforcement structure also includes a plurality of front reinforcement ribs and a plurality of rear reinforcement ribs, at least part of the front reinforcement ribs are formed between the main rib and the front upper flange, at least part of the front reinforcement ribs are formed between the main rib and the lower flange, and the rear reinforcement ribs are formed between the rear upper flange and the lower flange.

10. The rear swing arm assembly according to claim 4, characterized in that: The first rocker arm also includes a shock absorber pivoting portion, which is located at the middle section. The motorcycle also includes a frame and a shock absorber, one end of the shock absorber is connected to the frame, and the other end of the shock absorber is connected to the shock absorber pivoting portion through a connecting rod.

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