Rear suspension for a motorcycle

Abstract

The present application relates to a rear suspension mechanism of a motorcycle, the motorcycle at least comprising a frame unit, the frame unit having a head pipe, a main frame extending rearward from the head pipe, and a pair of left and right connecting plate frames connected to the main frame rearward; the frame unit is provided with a power unit forward of the connecting plate frames; the frame unit is provided with a seat cushion, a fuel tank located forward of the seat cushion, and a storage box located below the seat cushion; the connecting plate frames are pivotally provided with rear swing arms; a rear shock absorber is provided between the rear swing arms and the power unit; a connecting rod unit is connected to a lower end of the rear shock absorber; a battery is provided above the rear shock absorber, and the battery is located between the fuel tank and the storage box; as viewed from above, at least a part of the battery and the rear shock absorber overlap; thereby the rear shock absorber and the battery of the six-connecting-rod rear suspension mechanism are arranged in an up-down manner, thereby avoiding affecting the arrangement of the storage box; as viewed from above, at least a part of the battery and the rear shock absorber overlap, thereby concentrating the overall weight of the motorcycle and arranging the motorcycle toward the center of the vehicle body.

Description

Technical Field

[0001] This invention relates to a rear suspension mechanism for a motorcycle, and more particularly to a rear suspension mechanism for a motorcycle in which the rear shock absorber of a six-link rear suspension mechanism is arranged vertically with the battery, thereby avoiding interference with the storage compartment space. Background Technology

[0002] In the field of motorcycle battery configuration technology, such as patent case CN101767620B; patent case CN101767620B cannot effectively centralize the configuration of the rear suspension mechanism and battery to the center of the vehicle body. Summary of the Invention

[0003] The problem that the invention aims to solve.

[0004] The main objective of this invention is to provide a rear suspension mechanism for a motorcycle, which allows the rear shock absorber of the six-link rear suspension mechanism to be arranged vertically with the battery, thereby avoiding affecting the storage space of the storage compartment.

[0005] Technical means to solve the problem

[0006] Therefore, some technical means of the present invention are to provide a rear suspension mechanism for a motorcycle. The motorcycle includes at least a frame unit, which has a head tube and a main frame extending from the head tube toward the rear of the vehicle body. The main frame is connected to a pair of left and right connecting plates toward the rear of the vehicle body. A power unit is provided in front of the connecting plates in the frame unit. A seat, a fuel tank located in front of the seat, and a storage box located below the seat are provided above the frame unit. A rear swingarm is pivotally mounted on the connecting plates. A rear shock absorber is provided between the rear swingarm and the power unit. A linkage unit is connected to the lower end of the rear shock absorber. A battery is provided above the rear shock absorber and is located between the fuel tank and the storage box. From a top view, the battery and the rear shock absorber overlap at least partially.

[0007] Therefore, some technical means of the present invention are to provide a rear suspension mechanism for a motorcycle, wherein one end of the linkage unit is connected to the frame unit, and the other end of the linkage unit is connected to the rear swingarm; the rear shock absorber passes through the front end of the rear swingarm and is connected to the frame unit, and the other end is connected to the linkage unit; the upper pivot portion of the rear shock absorber is at a height slightly close to the upper edge of the transmission part of the power unit in the vertical direction of the vehicle body, and the lower pivot portion of the rear shock absorber is at a height slightly close to the lower edge of the power unit in the vertical direction of the vehicle body; the rear shock absorber is arranged in a slightly vertically inclined position towards the front of the vehicle body.

[0008] Therefore, some technical means of the present invention are to provide a rear suspension mechanism for a motorcycle, wherein the linkage unit has at least an upper crossbar, a lower crossbar, a first link pivotally connected to the lower crossbar, and a second link pivotally connected to the first link; the upper pivot of the rear shock absorber is pivotally connected to the upper crossbar, and the lower pivot of the rear shock absorber is pivotally connected to the first link; the other end of the second link is pivotally connected to the rear rocker arm; the lower crossbar is provided with a parking footrest pivot seat, and the parking footrest pivot seat is provided with a pivot portion; the height of the first link pivot portion pivotally connected to the lower crossbar in the vertical direction of the vehicle body is higher than the pivot portion of the parking footrest pivot seat.

[0009] Therefore, some technical means of the present invention are to provide a rear suspension mechanism for a motorcycle, wherein a main footrest is pivotally mounted on the parking footrest pivot seat; when the main footrest is retracted and viewed from the side of the vehicle body, the first link is located above the main footrest in the vertical direction along the vehicle body.

[0010] Therefore, some technical means of the present invention are to provide a rear suspension mechanism for a motorcycle, wherein the upper pivot portion of the rear shock absorber is located below the bottom end of the storage box and below the bottom surface of the fuel tank.

[0011] Therefore, some technical means of the present invention are to provide a rear suspension mechanism for a motorcycle, wherein a clearance portion is provided at the lower front of the storage box, and the battery is located in the clearance portion.

[0012] Therefore, some technical means of the present invention are to provide a rear suspension mechanism for a motorcycle, wherein the clearance part is provided with a maintenance part, the maintenance part has a maintenance port, and the maintenance port is covered with a maintenance cover.

[0013] Therefore, some technical means of the present invention are to provide a rear suspension mechanism for a motorcycle, wherein the linkage unit is provided with a battery mounting seat and a connecting frame; the battery mounting seat is for mounting the battery; and the connecting frame is for connecting the rear shock absorber.

[0014] Therefore, some technical means of the present invention are to provide a rear suspension mechanism for a motorcycle, wherein the lower pivot portion of the rear shock absorber, the pivot point of the second link and the first link, and the pivot portion of the parking stand pivot seat are at approximately the same height in the vertical direction of the vehicle body.

[0015] [The effects of the invention]

[0016] The present invention achieves the following effects through certain technical means: the rear shock absorber of the six-link rear suspension mechanism and the battery are arranged vertically, thereby avoiding affecting the storage space of the storage box; from a top view, the battery and the rear shock absorber at least partially overlap, which can concentrate the overall weight of the motorcycle and position it towards the center of the vehicle body.

[0017] The present invention achieves the following effects through certain technical means: it allows the rear shock absorber to be installed in a downward manner, thereby increasing the configuration space above the rear shock absorber and ensuring the length of the rear shock absorber.

[0018] The present invention achieves the following effects through certain technical means: it enables the rear shock absorber of the rear suspension mechanism to be in the form of a six-link, thereby increasing the cushioning effect of the rear shock absorber and maintaining the ground clearance of the link unit.

[0019] The present invention achieves the following effect through certain technical means: thereby ensuring the overall ground clearance of the motorcycle.

[0020] The present invention achieves the following effects through certain technical means: it ensures the movement space of the rear shock absorber, thereby increasing the cushioning effect of the rear shock absorber, and does not affect the installation space of the battery.

[0021] The present invention achieves the following effect through certain technical means: thereby facilitating the configuration of the battery and the storage box.

[0022] The present invention achieves the following effect through certain technical means: thereby facilitating the maintainability of the battery.

[0023] The present invention achieves the following effects through certain technical means: it facilitates the installation and positioning of the battery, and improves the shock absorption effect of the rear shock absorber, thereby achieving a tighter configuration between the battery and the rear shock absorber.

[0024] The present invention achieves the following effect through certain technical means: it can ensure that the height of the linkage unit along the vertical direction of the vehicle body can maintain a certain distance from the ground, thereby avoiding damage to the area below the linkage unit from foreign objects on the ground. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the motorcycle of the present invention.

[0026] Figure 2 This is a schematic diagram of the motorcycle bodyless unit of the present invention.

[0027] Figure 3 This is an assembly diagram of the rear shock absorber and connecting rod unit of the present invention.

[0028] Figure 4 This is an exploded view of the battery mounting base and connecting rod unit of the present invention.

[0029] Figure 5 This is a side view schematic diagram of the linkage unit, rear shock absorber and battery configuration of the present invention.

[0030] Figure 6 This is a schematic diagram of the maintenance section of the storage box of the present invention.

[0031] List of reference numerals

[0032] 1: Motorcycle

[0033] 2: Chassis Unit

[0034] 21: Head tube

[0035] 22: Connecting plate mechanism

[0036] 221: Upper connecting plate 222: Lower connecting plate

[0037] 23: Steering mechanism 231: Steering handle

[0038] 24: Front fork unit

[0039] 25: Main frame

[0040] 251: Upper frame 2511: Sloping section

[0041] 2512: Extension Section

[0042] 252: Lower frame 253: Pedal tube section

[0043] 26: Connecting plate frame

[0044] 27: Rear frame

[0045] 271: Ascending segment; 272: Extension segment

[0046] 28: Rear swingarm

[0047] 29: Linkage Unit

[0048] 291: Upper crossbar

[0049] 292: Lower crossbar

[0050] 293: Connecting frame

[0051] 294: First Link

[0052] 2941: First Linkage Pivot

[0053] 295: Second Link

[0054] 296: Locking frame

[0055] 297: Parking stand pivot seat; 2971: Pivot joint.

[0056] 3: Power Unit

[0057] 31: Cylinder section

[0058] 32: Transmission unit

[0059] 321: Drive component

[0060] 4: Seat cushion

[0061] 5: Body Cover Unit

[0062] 51: Hood 52: Windshield

[0063] 53: Front hood 54: Side hood

[0064] 55: Lower body cover 56: Upper body cover

[0065] 57: Plate rack cover

[0066] 6: Rear shock absorber

[0067] 61: Upper pivot joint 62: Lower pivot joint

[0068] 7: Battery mounting bracket

[0069] 8: Battery

[0070] 9: Main tripod

[0071] B: Storage box

[0072] Ba: Avoidance section

[0073] B1: Repair Department

[0074] B11: Maintenance port B12: Maintenance cover

[0075] C: Air filtration device

[0076] C1: Intake pipe

[0077] H: Radiator

[0078] M: Exhaust system

[0079] T: Fuel tank

[0080] V: Throttling valve body

[0081] FW: Front wheel

[0082] RW: Rear wheel. Detailed Implementation

[0083] To better understand the structure and effects of this invention, the following description is provided in conjunction with the accompanying drawings.

[0084] First, please refer to Figure 1 , 2As shown, the motorcycle 1 of the present invention has a frame unit 2, a head tube 21 at the front of the frame unit 2, a connecting plate mechanism 22 disposed on the head tube 21 facing the front of the vehicle body, the connecting plate mechanism 22 having an upper connecting plate 221 and a lower connecting plate 222; a steering mechanism 23 for turning the motorcycle 1 is disposed on the upper connecting plate 221, the steering mechanism 23 having a steering handle 231; front fork units (front shock absorbers) 24 are disposed on both sides of the connecting plate mechanism 22, passing through the connecting plate mechanism 22, and a front fork unit 24 is pivotally disposed below the front fork unit 24. The head tube 21 extends downward and rearward towards the vehicle body, where a main frame 25 is provided. The main frame 25 has a pair of upper side frames 251 extending towards the rear of the vehicle body. Each upper side frame 251 has an inclined section 2511 and a slightly horizontally extending extension section 2512. Below the inclined section 2511 and behind the head tube 21, the main frame 25 has a lower side frame 252 composed of a plurality of tubes. At the rear end of the extension section 2512, the upper side frame 251 has a pair of connecting plate frames 26, which are connected to the upper part of the vehicle body. The lower frame 252 and the connecting plate frame 26 are provided with a pair of left and right foot pedal tubes 253 along the front-rear direction of the vehicle body; the connecting plate frame 26 is connected to the rear frame 27 towards the rear of the vehicle body, the rear frame 27 has a rising section 271 and an extension section 272 extending slightly upward from the rising section 271 towards the rear of the vehicle body, the rising section 271 is implemented in the form of two pipes; a power unit 3 is provided in front of the connecting plate frame 26 and below the extension section 2512 of the upper frame 251, the power unit 3 is... The power unit 3 is mounted on the frame unit 2 in a non-swinging manner. It has a cylinder part 31 and a transmission part 32. The power unit 3 is connected to the frame unit 2 with the cylinder part 31 slightly tilted forward towards the vehicle body. A pair of left and right rear swingarms 28 are pivotally connected to the lower part of the connecting plate frame 26. The rear wheel RW is pivotally mounted at the rear end of the rear swingarm 28. The power unit 3 drives the rear wheel RW to rotate through the transmission part 32 and the drive member 321, thereby making the motorcycle 1 move. The drive member 321 can be a drive belt or a drive chain.

[0085] like Figure 1 , 2As shown, the motorcycle 1 has a seat 4 for the driver and passenger located behind the steering mechanism 23 and above the frame unit 2. The seat 4 is spaced from the steering mechanism 23. Notably, the upper connecting plate 221 of the connecting plate mechanism 22 is higher than the seat 4 in the vertical direction of the vehicle body. Below the seat 4 is a storage box B for the driver to place items. Above the frame unit 2 and in front of the storage box B is a fuel tank T for fuel storage, which provides the fuel required for the combustion of the power unit 3. Above the frame unit 2 and in front of the fuel tank T, the motorcycle 1 has an air filter C located behind the steering mechanism 23 and in front of the fuel tank T. The air filter C provides filtered fresh air to the power unit 3 for mixing with fuel for combustion. Furthermore, the air filter C and the power unit 3... The cylinder sections 31 of the power unit 3 are connected by an intake pipe C1, and the intake pipe C1 is equipped with a throttle valve body V that can control the intake air volume; the motorcycle 1 is equipped with a radiator H in front of the lower frame 252 of the frame unit 2, and the radiator H can provide coolant to the cylinder sections 31 of the power unit 3 for cooling, thereby ensuring the operation of the power unit 3; the cylinder section 31 of the power unit 3 is connected to an exhaust device M for discharging the combustion exhaust gas of the cylinder section 31, and the exhaust device M extends from the cylinder section 31 along the lower part of the vehicle body towards the right rear of the vehicle body (in this invention, the left and right sides refer to the right hand of the driver when riding the motorcycle 1 as the right side and the left hand as the left side, the same below); the air filter device C, the throttle valve body V and the fuel tank T are arranged at a height higher than the foot tube section 253 of the frame unit 2 in the vertical direction of the vehicle body.

[0086] like Figure 1 As shown, the motorcycle 1 is provided with a body cover unit 5 on its outer periphery. The body cover unit 5 has a front cover 51 that can cover the steering mechanism 23, and a windshield 52 is provided at the front end of the front cover 51. The body cover unit 5 has a front body cover 53 that can cover the front and lower part of the body of the motorcycle 1 at the rear of the front cover 51. The body cover unit 5 has a side body cover 54 that can cover the side of the motorcycle 1 body at the rear of the front body cover 53. The body cover unit 5 has a lower body cover 55 that can cover the lower part of the body below the front body cover 53 and the side body cover 54. The body cover unit 5 has an upper body cover 56 that can cover the fuel tank T and the air filter device C above the frame unit 2. The body cover unit 5 also has a frame cover 57 that can cover the connecting frame 26 of the frame unit 2.

[0087] like Figure 1 , 2As shown in Figures 3 and 5, the front end of the rear swing arm 28 is pivotally mounted on the connecting plate frame 26, and the rear end of the rear swing arm 28 is pivotally mounted on the rear wheel RW. The connecting plate frame 26 is connected to a linkage unit 29, which has an upper crossbar 291 (also a component of the frame unit 2) connected to the upper side of the connecting plate frame 26 and arranged along the left-right direction of the vehicle body, and a lower crossbar 292 (also a component of the frame unit 2) connected to the lower side of the connecting plate frame 26 and arranged along the left-right direction of the vehicle body. The upper crossbar 291 extends downward and rearward towards the vehicle body with a connecting frame 293. The lower crossbar 292 is pivotally connected to a first connecting rod 294, and the first connecting rod 294 is pivotally connected to a second connecting rod 295 near the middle. The other end of the second connecting rod 295 is pivotally connected to... The rear shock absorber 6 (rear suspension mechanism) is connected to one side of the rear rocker arm 28; the end of the first link 294 is pivotally connected to the rear shock absorber 6; more specifically, the upper pivot portion 61 of the rear shock absorber 6 passes through the front end of the rear rocker arm 28 and is pivotally connected to the connecting frame 293 of the upper crossbar 291, and the lower pivot portion 62 of the rear shock absorber 6 is pivotally connected to the end of the first link 294. Overall, the rear shock absorber 6 is disposed between the power unit 3 and the rear rocker arm 28. More specifically, the height of the upper pivot portion 61 of the rear shock absorber 6 in the vertical direction of the vehicle body is slightly close to the upper edge of the transmission part 32 of the power unit 3, and the height of the lower pivot portion 62 of the rear shock absorber 6 in the vertical direction of the vehicle body is slightly close to the lower edge of the power unit 3. Thus, the rear shock absorber 6 is positioned vertically towards the front of the vehicle body and is located near the center of the vehicle body between the power unit 3 and the rear rocker arm 28. This means the rear shock absorber 6 is positioned near the center of the vehicle body by the front end of the rear rocker arm 28. The linkage unit 29 forms a six-link rear suspension system with the frame unit 2, the first link 294, the second link 295, the rear rocker arm 28, and the rear shock absorber 6, thereby improving the damping effect of the rear shock absorber 6. The lower crossbar 292 is further provided with a parking stand pivot seat 297, which has a pivot part 2971 for pivoting the main stand 9 for parking. The lower pivot part 62 of the rear shock absorber 6 and the second link... The pivot point of the first link 294 and the pivot portion 2971 of the parking stand pivot seat 297 are set to be at approximately the same height in the vertical direction of the vehicle body. This ensures that the height of the link unit 29 in the vertical direction of the vehicle body can maintain a certain distance from the ground, thereby preventing the lower part of the link unit 29 from being damaged by ground debris. Furthermore, the present invention allows the height of the first link pivot portion 2941, which is pivotally connected to the lower crossbar 292, in the vertical direction of the vehicle body to be higher than the pivot portion 2971 of the parking stand pivot seat 297. This ensures that the height of the link unit 29 in the vertical direction of the vehicle body can maintain a certain distance from the ground, thereby preventing the lower part of the link unit 29 from being damaged by ground debris.Furthermore, when the main kickstand 9 is retracted (folded towards the front and rear of the vehicle body), viewed from the side, the first connecting rod 294 is located above the main kickstand 9 along the vertical direction of the vehicle body; that is, the lower end of the connecting rod unit 29 does not exceed the main kickstand 9, thereby ensuring the ground clearance of the motorcycle 1 as a whole.

[0088] like Figure 3 , 4 As shown in Figures 5 and 6, the upper crossbar 291 of the linkage unit 29 extends towards the rear of the vehicle body with a locking bracket 296. The locking bracket 296 locks a battery mounting seat 7, which can accommodate the battery 8 that provides power to the motorcycle 1. When the battery 8 is accommodated in the battery mounting seat 7, the battery 8 is positioned between the fuel tank T and the storage box B. More specifically, the battery 8 is positioned above the rear shock absorber 6. When viewed from above the vehicle body, the battery 8 and the rear shock absorber 6 overlap by at least a portion. Furthermore, to avoid the battery 8 from overlapping with the fuel tank T and the storage box B, the mounting bracket 296 is designed to accommodate the battery 8. The storage box B causes interference. The front end of the storage box B facing the fuel tank T has a downward and rearward recessed relief part Ba. The upper pivot part 61 of the rear shock absorber 6 is located below the bottom end of the storage box B. Above the relief part Ba of the storage box B, a slightly flattened maintenance part B1 is formed by extending forward towards the vehicle body. The maintenance part B1 has a maintenance port B11 and a maintenance cover B12 covering the maintenance port B11. In this way, when the battery 8 needs to be repaired, the engineer can open the seat cushion 4 and then open the maintenance cover B12 to repair the battery 8, thereby facilitating the maintenance of the battery 8.

[0089] The main feature of this invention is that the motorcycle 1 includes at least a frame unit 2, which has a head tube 21 and a main frame 25 extending from the head tube 21 toward the rear of the vehicle body. A pair of left and right connecting plates 26 are connected to the main frame 25 toward the rear of the vehicle body. A power unit 3 is located in front of the connecting plates 26 in the frame unit 2. A seat 4, a fuel tank T located in front of the seat 4, and a storage box B located below the seat 4 are located above the frame unit 2. A rear swingarm 28 is pivotally mounted on the connecting plates 26. A connection is provided between the rear swingarm 28 and the power unit 3. Rear shock absorber 6; the lower end of the rear shock absorber 6 is connected to a linkage unit 29; a battery 8 is provided above the rear shock absorber 6, and the battery 8 is located between the fuel tank T and the storage box B; from a top view, the battery 8 and the rear shock absorber 6 overlap at least partially; thereby, the rear shock absorber 6 and the battery 8 of the six-link rear suspension mechanism are arranged vertically, thereby avoiding affecting the storage space of the storage box B; from a top view, the battery 8 and the rear shock absorber 6 overlap at least partially, which can concentrate the overall weight of the motorcycle 1 and position it towards the center of the vehicle body.

[0090] In summary, the present invention, through the above-described structure, can improve upon known shortcomings and achieve the claimed objectives, and has indeed improved upon existing technologies, thus possessing novelty, practicality, and inventiveness.

Claims

1. A rear suspension mechanism for a motorcycle, characterized in that, The motorcycle includes at least a frame unit with a head tube and a main frame extending from the head tube toward the rear of the vehicle body. A pair of left and right connecting plates are connected to the main frame toward the rear of the vehicle body. A power unit is located in front of the connecting plates on the frame unit. A seat, a fuel tank located in front of the seat, and a storage compartment located below the seat are located above the frame unit. A rear swingarm is pivotally mounted on the connecting plates. A rear shock absorber is located between the rear swingarm and the power unit. A linkage unit is connected to the lower end of the rear shock absorber. A battery is located above the rear shock absorber, between the fuel tank and the storage compartment. From a top view, the battery and the rear shock absorber at least partially overlap.

2. The rear suspension mechanism of the motorcycle according to claim 1, characterized in that, One end of the linkage unit is connected to the frame unit, and the other end of the linkage unit is connected to the rear swing arm; the rear shock absorber passes through the front of the rear swing arm, with one end connected to the frame unit and the other end connected to the linkage unit; the upper pivot of the rear shock absorber is slightly closer to the upper edge of the transmission part of the power unit in the vertical direction of the vehicle body, and the lower pivot of the rear shock absorber is slightly closer to the lower edge of the power unit in the vertical direction of the vehicle body; the rear shock absorber is arranged in a slightly vertical, inclined position towards the front of the vehicle body.

3. The rear suspension mechanism of the motorcycle according to claim 1 or 2, characterized in that, The linkage unit has at least an upper crossbar, a lower crossbar, a first link pivotally connected to the lower crossbar, and a second link pivotally connected to the first link; the upper pivot of the rear shock absorber is pivotally connected to the upper crossbar, and the lower pivot of the rear shock absorber is pivotally connected to the first link; the other end of the second link is pivotally connected to the rear rocker arm; the lower crossbar is provided with a parking stand pivot seat, and the parking stand pivot seat is provided with a pivot part; the height of the first link pivot part of the first link, which is pivotally connected to the lower crossbar, in the vertical direction of the vehicle body is higher than the pivot part of the parking stand pivot seat.

4. The rear suspension mechanism of the motorcycle according to claim 3, characterized in that, The parking tripod pivot seat is pivotally connected to the main tripod; when the main tripod is retracted and viewed from the side of the vehicle body, the first connecting rod is located above the main tripod in the vertical direction along the vehicle body.

5. The rear suspension mechanism of the motorcycle according to claim 1, characterized in that, The upper pivot of the rear shock absorber is located below the bottom of the storage box and below the bottom of the fuel tank.

6. The rear suspension mechanism of the motorcycle according to claim 1, characterized in that, The storage box has a clearance section at the lower front, and the battery is located inside the clearance section.

7. The rear suspension mechanism of the motorcycle according to claim 6, characterized in that, The clearance section is provided with a maintenance section, which has a maintenance port and a maintenance cover.

8. The rear suspension mechanism of the motorcycle according to claim 1, characterized in that, The upper crossbar of the linkage unit is provided with a battery mounting base and a connecting frame; the battery mounting base is for mounting the battery; the connecting frame is for connecting the rear shock absorber.

9. The rear suspension mechanism of the motorcycle according to claim 3, characterized in that, The lower pivot of the rear shock absorber, the pivot point between the second link and the first link, and the pivot of the parking bracket are at approximately the same height in the vertical direction of the vehicle body.

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