Frame structure of motorcycle

Abstract

The utility model relates to a frame structure of a motorcycle, which comprises a frame, shock absorber beams, a shock absorber, two rear pedal mechanisms and two pedal connecting blocks, the left side and the right side of the frame are respectively provided with a side bicycle tube, the shock absorber beams are arranged on the two side bicycle tubes in a crossed mode and are connected with the shock absorber, and in addition, the shock absorber beams are connected with the two rear pedal mechanisms. The two rear pedal mechanisms are arranged on the left side and the right side of the shock absorber beam at intervals respectively, the two pedal connecting blocks are arranged below the side bicycle pipes respectively, and one pedal connecting block is connected between the shock absorber beam and one rear pedal mechanism. One pedal connecting block is connected between the shock absorber cross beam and one rear pedal mechanism, and the other pedal connecting block is connected between the shock absorber cross beam and the other rear pedal mechanism, so that each pedal connecting block is not only connected to the shock absorber cross beam, but also connected to the rear pedal mechanism, the structural strength of the rear pedal mechanism connected to the frame can be effectively improved, and the overall weight of the motorcycle can be relatively reduced.

Description

Technical Field

[0001] The utility model relates to a frame structure of a motorcycle, in particular to a frame structure of a motorcycle that can reduce the total weight of the motorcycle. Background Art

[0002] A motorcycle is a two-wheeled or three-wheeled vehicle that can move via an engine, and the motorcycle can change its moving direction via a steering mechanism. Thus, the motorcycle has the effects of easy operation, convenient parking, and high mobility, making the motorcycle the most popular means of transportation currently.

[0003] For the currently common existing motorcycles on the market to provide a comfortable footrest for rear-seat passengers, the existing motorcycles are respectively provided with rear footrest mechanisms on the left and right sides of the frame, allowing the feet of the rear-seat passengers to step on the rear footrest mechanisms. However, in order to prevent the rear footrest mechanisms of the existing motorcycles from being disengaged from the frame due to being stepped on by the feet of the rear-seat passengers for a long time, multiple vehicle components are additionally installed between the frame and the rear footrest mechanisms to strengthen the structural strength of the connection between the rear footrest mechanisms and the frame. However, the installation of multiple vehicle components between the frame and the rear footrest mechanisms will increase the overall weight of the existing motorcycles.

[0004] In addition, when the existing motorcycle is moving forward, the engine of the existing motorcycle will generate vibrations due to the bumps on the road surface. In order to prevent the vibrations of the engine from being transmitted to the rider, shock absorbers are installed between the frame and the engine of the existing motorcycle. However, multiple connecting rods are designed in the central section of the frame of the existing motorcycle to connect multiple vehicle components (such as: the vehicle shell, the storage box, and the seat cushion), making it impossible to install the shock absorbers in the central section of the frame. Therefore, the shock absorbers must be arranged on the left and right sides of the frame, and the left and right widths of the existing motorcycle will increase accordingly, thus expanding the volume of the existing motorcycle. Summary of the Utility Model

[0005] The main purpose of the present utility model is to provide a frame structure of a motorcycle with an improved structural form, and the improved frame structure of the motorcycle can change the connection relationship among the frame, the shock absorber, and the two rear footrest mechanisms, so that the total weight of the frame structure of the motorcycle can be reduced.

[0006] The secondary purpose of the present utility model is to provide a frame structure of a motorcycle that improves the connection relationship between the shock absorption mechanism and the storage box, so that the storage box can improve its load-bearing capacity through the shock absorption mechanism, and thus the storage box can carry heavier items.

[0007] To achieve the foregoing purposes, the present utility model provides a frame structure of a motorcycle, comprising: a frame, a shock absorption mechanism, two rear footrest mechanisms, and two pedal connecting blocks.

[0008] The above-mentioned vehicle frame is provided with a side tube on each of the left and right sides, and the above-mentioned shock absorption mechanism has a shock absorber cross beam arranged intersectingly on the two above-mentioned side tubes and a shock absorber connected to the above-mentioned shock absorber cross beam.

[0009] The two above-mentioned rear footrest mechanisms are respectively arranged at intervals on the left and right sides of the above-mentioned shock absorber cross beam. Among them, the two above-mentioned pedal connecting blocks are arranged on the above-mentioned side tubes, and one of the above-mentioned pedal connecting blocks is connected between the above-mentioned shock absorber cross beam and one of the above-mentioned rear footrest mechanisms, and the other above-mentioned pedal connecting block is connected between the above-mentioned shock absorber cross beam and the other above-mentioned rear footrest mechanism.

[0010] In this embodiment, the above-mentioned vehicle frame extends downward from the above-mentioned side tube to form a pedal connecting tube for connecting to the above-mentioned pedal connecting block. The above-mentioned pedal connecting tube is provided with a pedal front tube portion and an intersecting pedal rear tube portion, and the above-mentioned pedal front tube portion, pedal rear tube portion and shock absorber cross beam are arranged intersectingly with each other. Among them, a cross beam welding portion welded to the above-mentioned shock absorber cross beam and a pedal locking portion connected to the above-mentioned rear footrest mechanism are provided on the opposite sides of the above-mentioned pedal connecting block, and a vehicle tube welding portion is provided between the above-mentioned cross beam welding portion and the pedal locking portion of the above-mentioned pedal connecting block for welding to the above-mentioned pedal connecting tube.

[0011] In a preferred embodiment, a groove is provided in the above-mentioned cross beam welding portion, and the above-mentioned groove can accommodate a part of the above-mentioned shock absorber cross beam. Among them, the above-mentioned pedal locking portion is provided as a locking hole, and a locking member can pass through the above-mentioned rear footrest mechanism and the locking hole, so that the above-mentioned rear footrest mechanism can be connected to the above-mentioned pedal connecting block through the above-mentioned locking member. Then, the above-mentioned pedal locking portion is provided as two through columns, and the two above-mentioned through columns can respectively penetrate into the interior of the above-mentioned pedal front tube portion and the interior of the pedal rear tube portion.

[0012] In addition, one end of the above-mentioned shock absorber is connected to the interior of the above-mentioned shock absorber cross beam, so that when viewed from the direction of one of the above-mentioned side tubes towards the other above-mentioned side tube, the above-mentioned pedal connecting block overlaps a part of the above-mentioned shock absorber.

[0013] Furthermore, the vehicle frame structure of the above-mentioned motorcycle further has a storage box connected between the two above-mentioned side tubes, and the above-mentioned shock absorber cross beam contacts the bottom surface of the above-mentioned storage box, so that the above-mentioned storage box abuts against the above-mentioned shock absorber cross beam.

[0014] The feature of the present utility model is that the two pedal connecting blocks of the vehicle frame are jointly connected to the shock absorber cross beam of the shock absorption mechanism, and moreover, each pedal connecting block is also respectively connected to the rear footrest mechanism, so that the structural strength of the connection between the rear footrest mechanism and the vehicle frame can be effectively improved. Furthermore, there is no need to install a plurality of vehicle components between the rear footrest mechanism and the vehicle frame to strengthen the structural strength of the connection between the rear footrest mechanism and the vehicle frame, and relatively, the overall weight of the motorcycle can be reduced.

[0015] Furthermore, when the storage box is connected to the two side tubes of the vehicle frame, the shock absorber crossbeam of the shock absorption mechanism will contact the bottom surface of the storage box, causing the storage box to abut against the shock absorber crossbeam. Thus, the storage box can improve its load-bearing capacity through the shock absorber crossbeam, and further, the storage box can carry heavier items. Description of the Drawings

[0016] Figure 1 Stereogram of the vehicle frame structure of the motorcycle of the present utility model;

[0017] Figure 2 Exploded view of the vehicle frame structure of the motorcycle of the present utility model;

[0018] Figure 3 Left side view of the vehicle frame structure of the motorcycle of the present utility model;

[0019] Figure 4A Stereogram of the pedal connecting block;

[0020] Figure 4B Stereogram of the pedal connecting block from another perspective;

[0021] Figure 5 Rear side view of the vehicle frame structure of the motorcycle of the present utility model.

[0022] Description of the reference numerals: 1 - Vehicle frame structure of the motorcycle; 10 - Vehicle frame; 11 - Head tube; 12 - Side tube; 121 - Front tube part; 122 - Rear tube part; 13 - Steering handle; 14 - Front fork device; 15 - Transverse connecting tube; 16 - Pedal connecting tube; 161 - Front pedal tube part; 162 - Rear pedal tube part; 20 - Pedal connecting block; 21 - Crossbeam welding part; 211 - Groove; 22 - Pedal locking part; 221 - Lock hole; 23 - Tube welding part; 231 - Penetrating column; 24 - Connecting block through hole; 30 - Shock absorption mechanism; 31 - Shock absorber crossbeam; 32 - Shock absorber; 33 - Connecting piece; 40 - Rear footrest mechanism; 41 - Pedal seat; 42 - Rear pedal; 43 - Locking piece; 50 - Storage box. Detailed Description of the Preferred Embodiments

[0023] The present utility model will be further described below in conjunction with specific embodiments and the drawings. The advantages and features of the present utility model will become clearer as the description proceeds.

[0024] In the present drawings, the two sides of the X-axis refer to the left and right sides when the driver is sitting on the motorcycle, the Y-axis refers to the front and rear sides when the driver is sitting on the motorcycle, and the two sides of the Z-axis refer to the upper and lower sides when the driver is sitting on the motorcycle. Thus, in the specification of the present utility model, directional terms such as "front", "rear", "left", "right", "upper", and "lower" refer to the directions faced by the driver when sitting on the motorcycle.

[0025] Please refer toFigure 1 , Figure 2 and Figure 3 As shown, the present utility model provides a frame structure 1 for a motorcycle, which is mainly composed of a frame 10, two pedal connecting blocks 20, a shock absorption mechanism 30, two rear footrest mechanisms 40 and a storage box 50. As shown in the figure, a head tube 11 is provided at the front of the frame 10. And the frame 10 extends backward from the head tube 11 to form two side tubes 12, and the two side tubes 12 are respectively located on the left and right sides of the head tube 11. Among them, a steering handle 13 capable of controlling the moving direction of the motorcycle is pivotally connected to the frame 10 at the position of the head tube 11, and the steering handle 13 is connected to a front fork device 14 located below the head tube 11. In addition, one of the side tubes 12 is connected to the other side tube 12 through a transverse connecting tube 15 arranged at intervals behind the head tube 11, so that the side tubes 12 are distinguished from a front tube portion 121 formed behind the head tube 11 and a rear tube portion 122 located behind the front tube portion 121 through the transverse connecting tube 15. As shown in the figure, each side tube 12 forms a pedal connecting tube 16 downward at the position of the rear tube portion 122, and the height position of the pedal connecting tube 16 is lower than that of the transverse connecting tube 15. In this embodiment, the front tube portion 121 of the frame 10 is fixedly connected to an engine (not shown in the figure), so that the above-mentioned engine cannot swing relative to the frame 10. And the pedal connecting tube 16 has a pedal front tube portion 161 close to the transverse connecting tube 15 and a pedal rear tube portion 162 arranged behind the pedal front tube portion 161, and the pedal front tube portion 161 intersects and arranges with the pedal rear tube portion 162.

[0026] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4A and Figure 4B As shown, a cross beam welding portion 21 and a pedal locking portion 22 are provided on opposite sides of each pedal connecting block 20. And a tube welding portion 23 is provided between the cross beam welding portion 21 and the pedal locking portion 22 of the pedal connecting block 20. And a connecting block through hole 24 is formed through each pedal connecting block 20. Among them, the tube welding portion 23 of each pedal connecting block 20 is welded to one of the pedal connecting tubes 16 of the frame 10, so that each pedal connecting block 20 is arranged below the position of the rear tube portion 122 of the side tube 12. Furthermore, the two pedal connecting blocks 20 are arranged at intervals from each other. In this embodiment, the cross beam welding portion 21 is provided as a groove 211, and the pedal locking portion 22 is provided as a locking hole 221. Then the tube welding portion 23 is provided as two through columns 231. Among them, the tube welding portion 23 provided as two through columns 231 respectively penetrate into the interior of the pedal front tube portion 161 and the interior of the pedal rear tube portion 162. Subsequently, the tube welding portion 23 of the two through columns 231 is welded between the pedal front tube portion 161 and the pedal rear tube portion 162.

[0027] Please refer toFigure 2 , Figure 4B As shown in Figure 5 , the shock-absorbing mechanism 30 has a shock-absorber crossbeam 31 and a shock absorber 32. The shock-absorber crossbeam 31 penetrates into the crossbeam welding portion 21 which is set as the groove 211, so that a part of the crossbeam welding portion 21 is located inside the crossbeam welding portion 21 set as the groove 211. Subsequently, the shock-absorber crossbeam 31 is welded to the crossbeam welding portions 21 of the two pedal connection blocks 20, so that the shock-absorber crossbeam 31 is located behind the transverse connection pipe 15 of the frame 10. Furthermore, the shock-absorber crossbeam 31 is also arranged intersectingly with the side car pipe 12 of the frame 10. In this embodiment, when the shock-absorber crossbeam 31 is welded to the two pedal connection blocks 20, both the front pedal pipe portion 161 and the rear pedal pipe portion 162 of the pedal connection pipe 16 are arranged substantially perpendicular to the shock-absorber crossbeam 31. In addition, one end of the shock absorber 32 is connected to the shock-absorber crossbeam 31 via a connecting member 33 set as a screw, and the other end of the shock absorber 32 is connected to a rear swing arm installed on the above-mentioned engine, as Figure 3 shown. In this embodiment, when viewed from the direction from the side car pipe 12 on the left side of the head pipe 11 towards the side car pipe 12 on the right side of the head pipe 11, the pedal connection block 20 overlaps a part of the shock absorber 32 to form an overlapping area, and the overlapping area is located above the shock absorber 32.

[0028] Please refer to Figure 2 and Figure 3 shown. Each rear footrest mechanism 40 has a pedal seat 41 and a rear pedal 42 pivotally connected to the pedal seat 41. The pedal seat 41 of each rear footrest mechanism 40 is connected one-to-one to the pedal locking portion 22 of one of the pedal connection blocks 20 of the frame 10, so that each rear footrest mechanism 40 is arranged at intervals from the shock-absorber crossbeam 31 through the pedal connection block 20. Furthermore, both the two pedal connection blocks 20 and the shock-absorber crossbeam 31 of the shock-absorbing mechanism 30 are located between the two rear footrest mechanisms 40. Thereby, the structural strength of the connection between the rear footrest mechanism 40 and the frame 10 can be effectively improved. Furthermore, there is no need to install a plurality of vehicle components between the rear footrest mechanism 40 and the frame 10 to strengthen the structural strength of the connection between the rear footrest mechanism 40 and the frame 10, and relatively, the overall weight of the motorcycle can be reduced. In this embodiment, a locking member 43 set as a screw passes through the pedal seat 41 and the pedal locking portion 22 set as the locking hole 221, so that the rear footrest mechanism 40 can be connected to the pedal connection block 20 through the locking member 43.

[0029] Please refer to Figure 2 , Figure 3 and Figure 5As shown, the storage box 50 is connected to the rear tube part 122 of the two side tubes 12 of the vehicle, so that the storage box 50 is located above the rear wheel of the wheel set, and the shock absorber cross beam 31 of the frame 10 contacts the bottom surface of the storage box 50, so that the storage box 50 abuts against the shock absorber cross beam 31. Thus, the storage box 50 can improve its load-bearing capacity through the shock absorber cross beam 31, and further, the storage box 50 can carry heavier items.

[0030] The above description is illustrative of the present utility model rather than restrictive. Those of ordinary skill in the art can understand that many modifications, variations or equivalents can be made without departing from the spirit and scope defined by the claims, and all of them will fall within the protection scope of the present utility model.

Claims

1. A frame structure of a motorcycle, characterized in that, Comprising: A vehicle frame, with a side tube provided on each of the left and right sides; A shock absorption mechanism, having a shock absorber cross beam arranged intersectingly on two of the above-mentioned side tubes and a shock absorber connected to the above-mentioned shock absorber cross beam; Two rear pedal mechanisms, respectively arranged at intervals on the left and right sides of the above-mentioned shock absorber cross beam; Two pedal connecting blocks, arranged on the above-mentioned side tubes, and one of the above-mentioned pedal connecting blocks is connected between the above-mentioned shock absorber cross beam and one of the above-mentioned rear pedal mechanisms, and the other above-mentioned pedal connecting block is connected between the above-mentioned shock absorber cross beam and the other above-mentioned rear pedal mechanism.

2. The frame structure of the motorcycle according to claim 1, characterized in that: The above-mentioned vehicle frame extends downward from the above-mentioned side tube to form a pedal connecting tube for connecting to the above-mentioned pedal connecting block. The above-mentioned pedal connecting tube is provided with a pedal front tube portion and a pedal rear tube portion, and the above-mentioned pedal front tube portion, pedal rear tube portion and shock absorber cross beam are arranged intersectingly with each other.

3. The frame structure of the motorcycle according to claim 2, characterized in that: On the opposite sides of the above-mentioned pedal connecting block, there is a cross beam welding portion welded to the above-mentioned shock absorber cross beam and a pedal locking portion connected to the above-mentioned rear pedal mechanism. And the above-mentioned pedal connecting block is provided with a vehicle tube welding portion between the above-mentioned cross beam welding portion and the pedal locking portion for welding to the above-mentioned pedal connecting tube.

4. The frame structure of the motorcycle according to claim 3, characterized in that: The above-mentioned cross beam welding portion is provided with a groove, and the groove can accommodate a part of the above-mentioned shock absorber cross beam.

5. The frame structure of the motorcycle according to claim 3, characterized in that: The above-mentioned pedal locking portion is a locking hole, and a locking member can pass through the above-mentioned rear pedal mechanism and the locking hole, so that the above-mentioned rear pedal mechanism can be connected to the above-mentioned pedal connecting block through the above-mentioned locking member.

6. The frame structure of the motorcycle according to claim 3, characterized in that: The above-mentioned pedal locking portion is set as two through columns, and the two above-mentioned through columns can respectively penetrate into the interior of the above-mentioned pedal front tube portion and the interior of the pedal rear tube portion.

7. The frame structure of the motorcycle according to claim 1, characterized in that: One end of the above-mentioned shock absorber is connected to the interior of the above-mentioned shock absorber cross beam, so that when viewed from the direction of one of the above-mentioned side tubes towards the other above-mentioned side tube, the above-mentioned pedal connecting block overlaps a part of the above-mentioned shock absorber.

8. The frame structure of the motorcycle according to claim 1, characterized in that: The vehicle frame structure of the above-mentioned motorcycle further has a storage box connected between the two above-mentioned side tubes, and the above-mentioned shock absorber cross beam contacts the bottom surface of the above-mentioned storage box, so that the above-mentioned storage box abuts against the above-mentioned shock absorber cross beam.

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