Motorcycle structure

Abstract

The invention relates to a motorcycle structure, a motorcycle at least comprises a frame unit, the frame unit is provided with a head tube and a main frame extending from the head tube to the rear part of a motorcycle body, and the main frame is connected with a pair of left and right connecting plate frames towards the rear part of the motorcycle body; the connecting plate frame is pivoted with a rear rocker arm; a rear shock absorber is arranged between the rear rocker arm and the frame unit; the rear shock absorber is pivoted with the frame unit through the pivoting part; the outer side of the connecting plate frame is covered with a plate frame cover, the connecting plate frame is at least provided with a through opening part, and the plate frame cover is provided with a maintenance opening part corresponding to the opening part; viewing from the side view of a vehicle body, the upper pivot joint part of the rear shock absorber can be seen from the maintenance opening part and the opening part; therefore, the rear shock absorber can be arranged towards the front of the motorcycle body, so that the whole parts of the motorcycle can be assembled compactly; and the maintenance engineering of the rear shock absorber can be conveniently carried out.

Description

Technical Field

[0001] This invention relates to a motorcycle structure, and more particularly to a motorcycle structure in which the rear shock absorber is positioned towards the front of the motorcycle body to make the overall components of the motorcycle more compact, and to facilitate the maintenance of the rear shock absorber. Background Technology

[0002] Multi-link rear suspension systems for motorcycles, such as those in patent JPB006150284, while offering ease of installation, suffer from the serious drawback of exposing the mounting holes for the rear suspension on the frame unit, resulting in a deterioration of the vehicle's appearance. Summary of the Invention

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

[0004] The main objective of this invention is to provide a motorcycle structure that allows the rear shock absorber to be positioned towards the front of the vehicle body, thereby making the overall motorcycle components more compact and improving the ease of maintenance of the rear shock absorber.

[0005] Technical means to solve the problem

[0006] Therefore, some technical means of the present invention are to provide a motorcycle structure, the motorcycle including at least a frame unit, the frame unit having a head tube, a main frame extending from the head tube toward the rear of the vehicle body, the main frame being connected to a pair of left and right connecting plates toward the rear of the vehicle body; a rear swingarm is pivotally mounted on the connecting plates; a rear shock absorber is provided between the rear swingarm and the frame unit; the upper pivot portion of the rear shock absorber is pivotally connected to the frame unit; a plate cover is provided on the outer side of the connecting plates, the connecting plates having at least one through opening, and a maintenance opening corresponding to the opening on the plate cover; when viewed from the side of the vehicle body, the upper pivot portion of the rear shock absorber can be seen through the maintenance opening and the opening.

[0007] Therefore, some technical means of the present invention are to provide a motorcycle structure in which a foot pedal is provided on the connecting plate frame; the foot pedal, when folded, is accommodated in the maintenance opening of the plate frame cover and can at least cover part of the opening.

[0008] Therefore, some technical means of the present invention are to provide a motorcycle structure in which an upper crossbar is provided on the upper side of the connecting plate frame and a lower crossbar is provided on the lower side of the connecting plate frame; a first connecting rod is pivotally connected to the lower crossbar, and a second connecting rod is pivotally connected to the first connecting rod; the upper pivot part of the rear shock absorber is pivotally connected to the upper crossbar, and the lower pivot part of the rear shock absorber is pivotally connected to the first connecting rod; the other end of the second connecting rod is pivotally connected to the rear rocker arm.

[0009] Therefore, some technical means of the present invention are to provide a motorcycle structure in which the rear shock absorber is disposed near the center of the vehicle body at a slight forward tilt.

[0010] Therefore, some technical means of the present invention are to provide a motorcycle structure in which the connecting plate frame is provided with a through second opening; the second opening corresponds to the pivot portion of the first connecting rod.

[0011] Therefore, some technical means of the present invention are to provide a motorcycle structure, the motorcycle having a fuel tank and a power unit; the opening and the maintenance port are disposed between the upper edge of the fuel tank and the lower edge of the power unit.

[0012] Therefore, some technical means of the present invention are to provide a motorcycle structure having a fuel tank and a rear wheel; the opening and the maintenance port are disposed between the front edge of the fuel tank and the front edge of the rear wheel.

[0013] Therefore, some technical means of the present invention are to provide a motorcycle structure in which the connecting plate frame is further provided with a through second opening; the plate frame cover does not cover the second opening.

[0014] [The effects of the invention]

[0015] The present invention achieves the following effects through certain technical means: it allows the rear shock absorber to be positioned towards the front of the vehicle body, thereby making the overall components of the motorcycle more compact; and it also facilitates the maintenance of the rear shock absorber.

[0016] The present invention achieves the following effect through certain technical means: it allows for maintenance of the rear shock absorber without disassembling other vehicle body components, thereby improving the convenience of maintenance of the rear shock absorber.

[0017] The present invention achieves the following effects through certain technical means: it can concentrate the center of gravity of the shock absorber; at the same time, it can make the rear shock absorber a six-link type, thereby increasing the cushioning effect of the rear shock absorber.

[0018] The present invention achieves the following effect through certain technical means: it can concentrate the center of gravity of the shock absorber, thereby improving the handling of the motorcycle.

[0019] The present invention achieves the following effect through certain technical means: it allows for maintenance of the pivot joint of the first link of the six-bar linkage without disassembling other body panel components, thereby improving the convenience of maintenance of the rear shock absorber.

[0020] The present invention achieves the following effect through certain technical means: thereby improving the convenience of maintenance of the rear shock absorber.

[0021] The present invention achieves the following effect through certain technical means: thereby improving the convenience of maintenance of the rear shock absorber.

[0022] The present invention achieves the following effect through certain technical means: it facilitates the assembly and maintenance of the first link of the rear suspension system of the six-link mechanism. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the motorcycle of the present invention.

[0024] Figure 2 This is a schematic diagram of the motorcycle bodyless unit of the present invention.

[0025] Figure 3 This is a schematic diagram of the rear shock absorber assembly of the present invention.

[0026] Figure 4 This is a schematic diagram of the connecting plate frame and the plate frame cover of the present invention.

[0027] Figure 5 This is a schematic diagram of the connecting plate frame and the rear shock absorber of the present invention.

[0028] List of reference numerals

[0029] 1: Motorcycle

[0030] 2: Chassis Unit

[0031] 21: Head tube

[0032] 22: Connecting plate mechanism

[0033] 221: Upper connecting plate 222: Lower connecting plate

[0034] 23: Steering mechanism 231: Steering handle

[0035] 24: Front fork unit

[0036] 25: Main frame

[0037] 251: Upper frame 2511: Sloping section

[0038] 2512: Extension Section

[0039] 252: Lower frame

[0040] 26: Connecting plate frame

[0041] 26a: First opening 26b: Second opening

[0042] 261: Upper crossbar 2611: Connecting frame

[0043] 262: Lower crossbar

[0044] 263: First Linkage; 2631: Pivot Joint

[0045] 264: Second Link

[0046] 27: Rear frame

[0047] 271: Ascending segment; 272: Extension segment

[0048] 28: Rear swingarm

[0049] 3: Power Unit

[0050] 31: Cylinder section

[0051] 32: Transmission Unit

[0052] 321: Drive component

[0053] 4: Seat cushion

[0054] 5: Body Cover Unit

[0055] 51: Hood 52: Windshield

[0056] 53: Front hood 54: Side hood

[0057] 55: Lower body cover 56: Upper body cover

[0058] 57: Shelf cover; 571: Maintenance opening.

[0059] 6: Rear shock absorber

[0060] 61: Upper pivot joint 62: Lower pivot joint

[0061] B: Storage box

[0062] C: Air filtration device

[0063] H: Radiator

[0064] M: Exhaust system

[0065] P: Foot pedal

[0066] T: Fuel tank

[0067] FW: Front wheel

[0068] RW: Rear wheel. Detailed Implementation

[0069] To better understand the structure and effects of this invention, the following description is provided in conjunction with the accompanying drawings.

[0070] 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. The front wheel (FW) is pivotally mounted below the head tube 24; the head tube 21 extends downward and rearward towards the vehicle body along the main frame 25, which has a pair of upper side frames 251 facing the rear of the vehicle body. The upper side frames 251 have an inclined section 2511 and a slightly horizontally extending extension section 2512; the main frame 25 has a lower side frame 252 composed of multiple tubes below the inclined section 2511 and behind the head tube 21; the upper side frames 251 have a pair of left and right side frames at the rear end of the extension section 2512. A connecting frame 26 is provided, which is arranged vertically along the vehicle body. A rear frame 27 is connected to the connecting frame 26 towards the rear of the vehicle body. The rear frame 27 has an ascending section 271 and an extension section 272 extending slightly upward from the ascending section 271 towards the rear of the vehicle body. The ascending section 271 is implemented using two tubular components. A power unit 3 is located in front of the connecting frame 26 and below the extension section 2512 of the upper frame 251. The power unit 3 is connected to the vehicle body in a non-swinging manner. On the frame unit 2, the power unit 3 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 swing arms 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 swing arms 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.

[0071] like Figure 1 , 2As shown, the motorcycle 1 has a seat 4 for the driver and passenger to sit on, located behind the steering mechanism 23 and above the frame unit 2, with a gap between the seat 4 and the steering mechanism 23; a storage box B for the driver to place personal items is located below the seat 4; a fuel tank T for fuel storage is located above the frame unit 2 and in front of the storage box B, providing fuel for the power unit 3; an air filter C is located above the frame unit 2, behind the steering mechanism 23 and in front of the fuel tank T, providing external air filtration. The filtered fresh air is used to mix with the fuel in the power unit 3 for combustion. The motorcycle 1 has a radiator H in front of the lower frame 252 of the frame unit 2. The radiator H can provide coolant to the cylinder section 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. The exhaust device M extends from the cylinder section 31 along the lower right side of the vehicle body (the left and right sides of the vehicle body are defined by the right hand of the driver when riding the motorcycle as the right side and the left hand as the left side) towards the rear of the vehicle body.

[0072] 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 covers 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 C above the frame unit 2. The body cover unit 5 also has a plate cover 57 that can cover the connecting plate frame 26 of the frame unit 2. The plate cover 57 has a maintenance opening 571 for maintenance.

[0073] like Figure 2 , 3As shown in Figures 4 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 upper side of the connecting plate frame 26 is provided with an upper crossbar 261 arranged in the left-right direction of the vehicle body, and the lower side of the connecting plate frame 26 is provided with a lower crossbar 262 arranged in the left-right direction of the vehicle body; the upper crossbar 261 extends towards the rear of the vehicle body with a connecting frame 2611; the lower crossbar 262 is pivotally connected to a first connecting rod 263, and the first connecting rod 263 is pivotally connected to a second connecting rod 264 near the middle, and the other end of the second connecting rod 264 is pivotally connected to one side of the rear swing arm 28; the end of the first connecting rod 263 is pivotally connected to a rear shock absorber 6; more specifically, the upper pivot part 61 of the rear shock absorber 6 The rear shock absorber 6 is pivotally connected to the connecting frame 2611 of the upper crossbar 261. The lower pivot part 62 of the rear shock absorber 6 is pivotally connected to the end of the first link 263. Overall, the rear shock absorber 6 is disposed between the frame unit 2 and the rear rocker arm 28. More specifically, the rear shock absorber 6 is disposed near the center of the vehicle body between the frame unit 2 and the rear rocker arm 28, slightly inclined towards the front of the vehicle body. That is, the rear shock absorber 6 is disposed near the center of the vehicle body with the front end of the rear rocker arm 28 in a central position. The frame unit 2, the first link 263, the second link 264, the rear rocker arm 28 and the rear shock absorber 6 can form a six-link rear suspension system, thereby improving the buffering effect of the rear shock absorber 6.

[0074] like Figure 1 , 2As shown in Figures 3, 4, and 5, the connecting plate frame 26 has at least one through opening. In a specific embodiment of the present invention, the connecting plate frame 26 has a first opening 26a and a second opening 26b. The first opening 26a corresponds to the pivot point between the upper pivot part 61 of the rear shock absorber 6 and the connecting frame 2611 of the upper crossbar 261, that is, the first opening 26a corresponds to the upper pivot part 61 of the rear shock absorber 6. The second opening 26b corresponds to the pivot part 2631 of the first connecting rod 263. Furthermore, the first opening 26a is located inside the maintenance opening 571 of the plate frame cover 57 covering the outside of the connecting plate frame 26, that is, the first opening 26a and the upper pivot part 611 of the rear shock absorber 6 can be viewed from the side of the vehicle body through the maintenance opening 571 of the plate frame cover 57. 1; The plate cover 57 does not cover the second opening 26b, thereby allowing the pivot portion 2631 of the first connecting rod 263 to be viewed through the second opening 26b. Therefore, when repairing the first connecting rod 263, it is not necessary to remove the plate cover 57. Since the first opening 26a corresponds to the upper pivot portion 61 of the rear shock absorber 6, when the upper pivot portion 61 of the rear shock absorber 6 is pivotally connected to the connecting frame 2611 of the upper crossbar 261 or when the rear shock absorber 6 needs to be repaired, the engineer can directly use the repair tools to reach into the first opening 26a through the repair port 571 of the plate cover 57 to carry out the repair work. This facilitates the repair work on the upper pivot portion 61 of the rear shock absorber 6, meaning that the repair work on the upper pivot portion 61 of the rear shock absorber 6 can be carried out without removing any component of the vehicle body cover unit 5.

[0075] like Figure 1 , 5As shown, the connecting plate frame 26 has a foldable footrest P between the first opening 26a and the second opening 26b for passengers to rest their feet on. More specifically, the footrest P protrudes from the maintenance opening 571 of the plate cover 57 that covers the connecting plate frame 26. Therefore, when the footrest P is not in use, it can be folded and housed within the maintenance opening 571, simultaneously concealing at least partially or completely the first opening 26a within the maintenance opening 571. When the rear shock absorber 6 needs maintenance, simply kicking the footrest P out of the maintenance opening 571 will allow the shock absorber to be properly maintained. When the foot pedal P is perpendicular to the side of the vehicle body, the first opening 26a is exposed. Engineers can then use maintenance tools to extend into the first opening 26a through the maintenance port 571 of the plate cover 57 to perform maintenance work. This improves the comfort of passengers' feet and ensures the convenience of maintenance of the rear shock absorber 6. Furthermore, the invention can place the first opening 26a and the maintenance port 571 between the upper edge of the fuel tank T and the lower edge of the power unit 3, or between the front edge of the fuel tank T and the front edge of the rear wheel RW.

[0076] The main feature of this invention is that the motorcycle 1 includes at least a frame unit 2, which has a head tube 21, a main frame 25 extending from the head tube 21 toward the rear of the frame, and a pair of left and right connecting plates 26 connected to the main frame 25 toward the rear of the frame; a rear swingarm 28 is pivotally mounted on the connecting plates 26; a rear shock absorber 6 is provided between the rear swingarm 28 and the frame unit 2; the upper pivot portion 61 of the rear shock absorber 6 is pivotally connected to the frame unit 2; and the outer side of the connecting plates 26 is covered with... The plate cover 57 has at least one through opening 26a on the connecting plate 26, and the plate cover 57 has a maintenance opening 571 corresponding to the first opening 26a. When viewed from the side of the vehicle body, the upper pivot part 61 of the rear shock absorber 6 can be seen through the maintenance opening 571 and the first opening 26a. This allows the rear shock absorber 6 to be positioned towards the front of the vehicle body, thereby making the overall components of the motorcycle 1 more compact and facilitating the maintenance of the rear shock absorber 6.

[0077] 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 motorcycle structure, characterized in that, 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 rear swingarm is pivotally mounted on the connecting plates. A rear shock absorber is provided between the rear swingarm and the frame unit. The upper pivot of the rear shock absorber is pivotally connected to the frame unit. A plate cover is provided on the outer side of the connecting plates. At least one through opening is provided on the connecting plates. A maintenance opening is provided on the plate cover corresponding to the opening. When viewed from the side of the vehicle body, the upper pivot of the rear shock absorber can be seen through the maintenance opening and the opening.

2. The motorcycle structure according to claim 1, characterized in that, The connecting plate frame is equipped with a foot pedal; when folded, the foot pedal is housed within the maintenance opening of the plate frame cover and can at least partially cover the opening.

3. The motorcycle structure according to claim 1, characterized in that, The upper side of the connecting plate frame is provided with an upper crossbar, and the lower side of the connecting plate frame is provided with a lower crossbar; the lower crossbar is pivotally connected to a first connecting rod, and the first connecting rod is pivotally connected to a second connecting rod; the upper pivot part of the rear shock absorber is pivotally connected to the upper crossbar, and the lower pivot part of the rear shock absorber is pivotally connected to the first connecting rod; the other end of the second connecting rod is pivotally connected to the rear rocker arm.

4. The motorcycle structure according to claim 1 or 3, characterized in that, The rear shock absorber is positioned slightly forward of the vehicle body and near the center of the vehicle body.

5. The motorcycle structure according to claim 3, characterized in that, The connecting plate frame is also provided with a through second opening; the second opening corresponds to the pivot part of the first connecting rod.

6. The motorcycle structure according to claim 1, characterized in that, The motorcycle has a fuel tank and a power unit; the opening and the maintenance port are located between the upper edge of the fuel tank and the lower edge of the power unit.

7. The motorcycle structure according to claim 1, characterized in that, The motorcycle has a fuel tank and a rear wheel; the opening and the maintenance port are located between the front edge of the fuel tank and the front edge of the rear wheel.

8. The motorcycle structure according to claim 1, characterized in that, The connecting plate frame is also provided with a through second opening; the plate frame cover does not cover the second opening.

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