Rear handrail for a motorcycle and rear handrail mounting structure

Abstract

The utility model discloses a motorcycle rear handrail and rear handrail mounting structure, is provided with the connecting lug along the car length direction on the side of the free end of support part to the front, is provided with the transverse mounting hole on the connecting lug and penetrates, is provided with the vertical mounting hole on the free end of support part and penetrates, correspondingly sets up the transverse screw hole and the mounting lug on the outside of the motorcycle frame tail pipe, sets up the vertical screw hole on the mounting lug, when loading, makes the connecting lug and the motorcycle frame tail pipe transversely abuts and realizes the fixed cooperation through the transverse bolt through the transverse mounting hole and the transverse screw hole, and the free end of support part is abutted on the top of the mounting lug through the first step surface, and realizes the fixed cooperation through the vertical bolt through the vertical mounting hole and the vertical screw hole, the connecting lug is transversely connected, is not only favorable to reducing the moment of the rear handrail when using, improves the reliability and stability of installation, and can avoid the height difference of the connecting place of the motorcycle frame and the rear handrail and the rear handrail, is favorable to controlling the weight of the rear handrail, optimizing the whole car mode.

Description

Technical Field

[0001] This utility model belongs to the technical field of other auxiliary devices in transportation operations, specifically relating to a motorcycle rear grab handle and a rear grab handle mounting structure. Background Technology

[0002] Motorcycle rear grab handles are typically located on both sides behind the motorcycle seat, providing a grip for passengers to maintain balance and improve riding safety. Referring to Chinese Patent CN206437111U and Chinese Patent CN103847842A, the grab handle body of existing motorcycle rear grab handles is generally L-shaped, with one end serving as a support and the other as a gripping part. The free end of the support extends to form a transverse mounting part, which has vertically penetrating mounting holes. During installation, bolts are passed through these holes to secure the grab handle to the motorcycle frame.

[0003] As per the appendix to this application specification Figure 1 As shown, the applicant's prior design has an arc-shaped transverse mounting part 1 that fits the frame tail tube 2, and threaded holes corresponding to the mounting holes on the transverse mounting part are provided on the frame tail tube. During installation, the support part 3 faces forward and the transverse mounting part faces the frame. The transverse mounting part is then overlapped on the frame tail tube, and bolts 4 are used to connect it through the mounting holes and threaded holes on the frame tail tube. The grip part 5 is provided for the passenger to hold. However, after vehicle testing, it was found that whether the transverse mounting part is directly fixed to the frame tail tube, or the transverse mounting part is extended and fixed to the reinforcing cross plate between the two frame tail tubes as described in the above patent, the presence of the transverse mounting part will increase the torque of the rear grab handle during use, thereby affecting the reliability and stability of the connection between the rear grab handle and the frame. In addition, there is a height difference between the transverse mounting part and the grab handle body, especially the grip part, which will not only increase the weight of the rear grab handle, but also affect the overall vehicle mode. Therefore, it is necessary to improve the motorcycle rear grab handle to improve the reliability and stability of the rear grab handle installation. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a motorcycle rear grab handle and a rear grab handle installation structure, to solve the technical problem of poor installation stability of existing motorcycle rear grab handles, and to achieve the effect of making the installation of motorcycle rear grab handles more stable and reliable.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A motorcycle rear grab handle includes a rear grab handle body, which is L-shaped and includes a connected support part and a grip part. A vertical mounting hole is provided through the free end of the support part, and a connecting ear is formed on the side of the free end of the support part away from the free end of the grip part. A horizontal mounting hole is provided through the connecting ear.

[0007] Furthermore, a first stepped surface is formed between the end face of the free end of the support and the lower surface, and a vertical mounting hole penetrates the lower first stepped surface.

[0008] Furthermore, a second stepped surface is formed between the end face of the free end of the support and the upper surface, and the vertical mounting hole penetrates the second stepped surface.

[0009] Furthermore, the first and second stepped surfaces are positioned away from the connecting ear on the free end of the support.

[0010] Furthermore, the connection between the support and the grip is smoothly transitioned by an arc surface, and the cross-sectional area of ​​the rear armrest body decreases sequentially from the free end of the support to the free end of the grip.

[0011] This utility model also includes a motorcycle rear grab handle mounting structure, which includes a frame, vertical bolts, horizontal bolts, and a motorcycle rear grab handle as described above. The frame includes a frame tail tube, and a mounting ear is formed by protrusion on the outward side of the frame tail tube in the vehicle width direction. The upper surface of the mounting ear is provided with a vertical threaded hole. A horizontal threaded hole is provided on the outward side of the frame tail tube in the vehicle width direction. The horizontal threaded hole is located in front of the mounting ear in the vehicle length direction. A first stepped surface abuts against the top of the mounting ear. The connecting ear abuts against the outward side of the frame tail tube in the vehicle width direction. The vertical bolt passes through the vertical mounting hole and is threadedly connected to the vertical threaded hole. The horizontal bolt passes through the horizontal mounting hole and is threadedly connected to the horizontal threaded hole.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The motorcycle rear grab handle of this utility model has a connecting ear on the front side of the free end of the support part along the length of the vehicle. A transverse mounting hole is provided through the connecting ear. When installing the motorcycle, the connecting ear is made to abut against the tail tube of the frame laterally and is fixed by a transverse bolt. The transverse connection of the connecting ear not only helps to reduce the torque of the rear grab handle during use and improve the reliability and stability of the installation, but also avoids the height difference between the connection between the frame and the rear grab handle and the rear grab handle. This helps to control the weight of the rear grab handle and optimize the overall vehicle mode.

[0014] 2. The motorcycle rear grab handle of this utility model has a vertical mounting hole through the free end of the support part, and a mounting ear is provided on the side of the tail tube of the frame facing outward along the width of the vehicle. When installing, the free end of the support part abuts against the top of the mounting ear through the first stepped surface and is fixed by vertical bolts. This not only prevents the rear grab handle from rotating, but also facilitates installation. The recessed first stepped surface makes way for the mounting ear, which helps to reduce the vertical space required for installation and avoids affecting the installation height.

[0015] 3. When installing the motorcycle rear grab handle described in this utility model, the head of the vertical bolt abuts against the second step surface. The recessed second step surface makes way for the head of the vertical bolt, reducing the vertical space required for installation and preventing the head of the vertical bolt from protruding upwards and interfering with the seat or affecting the gripping experience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the previously designed rear grab handle of a motorcycle in the background art, showing its mounted state.

[0017] Figure 2 This is a perspective view of the motorcycle rear grab handle described in the embodiment;

[0018] Figure 3 This is a schematic diagram showing the motorcycle rear grab handle installed in the embodiment.

[0019] Figure 4 Exploded view A shows the motorcycle rear grab handle in the installation state as described in the embodiment.

[0020] Figure 5 Exploded view B shows the motorcycle rear grab handle in the installation state as described in the embodiment.

[0021] The components include: 1. Horizontal mounting part; 2. Chassis tail tube; 3. Support part; 4. Bolt; 5. Grip part; 6. Vertical mounting hole; 7. Connecting ear; 8. Horizontal mounting hole; 9. First step surface; 10. Second step surface; 11. Vertical bolt; 12. Horizontal bolt; 13. Mounting ear; 14. Vertical threaded hole; 15. Horizontal threaded hole; and 16. Washer. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal," "vertical," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example:

[0025] Please see Figure 2 and Figure 3 A motorcycle rear grab handle includes a rear grab handle body, which is L-shaped and includes a connected support part 3 and a grip part 5. Both the support part 3 and the grip part 5 are rod-shaped. The rear grab handle body is an integral structure cast or forged. A vertical mounting hole 6 is provided through the free end of the support part 3. The vertical direction refers to the height direction of the rear grab handle body when mounted on the vehicle. A connecting ear 7 is formed on the side of the free end of the support part 3 away from the free end of the grip part 5. A horizontal mounting hole 8 is provided through the connecting ear 7. The horizontal direction refers to the width direction of the rear grab handle body when mounted on the vehicle.

[0026] The main improvement to the motorcycle rear grab handle described in this utility model lies in providing a connecting lug 7 along the length of the vehicle on the forward-facing side of the free end of the support part 3; such as Figure 4 and Figure 5As shown, during vehicle installation, a transverse threaded hole 15 is provided on the tail tube 2 of the frame, so that the connecting lug 7 abuts against the tail tube 2 of the frame laterally. A transverse bolt 12 passes through the transverse mounting hole 8 on the connecting lug 7 and engages with the transverse threaded hole 15 to achieve fixation. Replacing the previously designed transverse mounting part 1 with the connecting lug 7, and changing the vertical connection to a transverse connection, not only helps to reduce the torque of the rear handrail during use, thereby improving the reliability and stability of the connection between the rear handrail and the frame, but also prevents a height difference between the connection point of the frame and the rear handrail and the rear handrail itself, which helps to control the weight of the rear handrail and optimize the overall vehicle mode. Since the force direction of the rear handrail when held by a passenger is mainly vertical, if only one transverse bolt 12 is used for connection, the rear handrail may rotate and shift. To prevent the rear handrail from rotating, the length of the connecting lug 7 can be extended, or another connecting lug 7 can be provided on the rearward side of the free end of the support part 3, with two transverse bolts spaced apart. The rear grab handle is fixed by mounting holes 8 and two horizontal bolts 12. However, extending the connecting ear 7 causes the stress on the rear grab handle to be mainly concentrated at the connection between the connecting ear 7 and the support part 3, which not only results in poor reliability but also makes the rear grab handle prone to vibration. Setting another connecting ear 7 not only makes installation difficult because the rear horizontal mounting hole 8 is blocked by the grip part 5 in the horizontal direction, but also increases the required installation position of the rear grab handle in the vehicle length direction, making it difficult to install the rear grab handle at the end of the frame tail tube 2, which may not meet the installation requirements of some models. Therefore, this utility model chooses to set a vertical mounting hole 6 through the free end of the support part 3. During vehicle installation, a mounting ear 13 is set on the side of the frame tail tube 2 facing outward in the vehicle width direction, so that the free end of the support part 3 abuts against the top of the mounting ear 13. The vertical bolt 11 passes through the vertical mounting hole 6 and engages with the vertical threaded hole 14 on the mounting ear 13 to achieve fixation. This not only prevents the rear grab handle from rotating but also makes installation convenient.

[0027] Please see Figure 5 A first stepped surface 9 is formed between the end face of the free end of the support part 3 and the lower surface, and the vertical mounting hole 6 passes through the lower first stepped surface 9. In this way, when loading the vehicle, the free end of the support part 3 abuts against the mounting ear 13 through the first stepped surface 9. The recessed first stepped surface 9 makes way for the mounting ear 13, reducing the vertical space required for installation and avoiding affecting the installation height.

[0028] Please see Figure 2 and Figure 3 The free end face of the support part 3 is recessed between the upper surface and the upper surface to form a second stepped surface 10, and the vertical mounting hole 6 penetrates the second stepped surface 10. In this way, when the vehicle is installed, the head of the vertical bolt 11 abuts against the second stepped surface 10, and the recessed second stepped surface 10 makes way for the head of the vertical bolt 11, reducing the vertical space required for installation and avoiding the head of the vertical bolt 11 from protruding upward and interfering with the seat or affecting the gripping experience.

[0029] Please see Figure 2 The first step surface 9 and the second step surface 10 are set away from the connecting ear 7 on the free end of the support part 3. In this way, without changing the size of the support part 3 in the length direction, the distance between the vertical mounting hole 6 and the horizontal mounting hole 8 is increased, which is beneficial to optimize the stress. In addition, the first step surface 9 and the second step surface 10 will cause the area to become thinner, so that the thinned area is located further back and away from the connection between the free end of the support part 3 and the connecting ear 7, which is beneficial to ensure the structural strength of the connecting ear 7.

[0030] Please see Figure 2 The connection between the support part 3 and the grip part 5 is smoothly transitioned by an arc surface. That is, in the length direction of the vehicle, the front side of the support part 3 and the front side of the grip part 5 are smoothly transitioned by an arc surface, and the rear side of the support part 3 and the rear side of the grip part 5 are smoothly transitioned by an arc surface. The cross-sectional area of ​​the rear armrest body decreases sequentially from the free end of the support part 3 to the free end of the grip part 5. This helps to improve the comfort of gripping. The cross-sectional area of ​​the rear armrest body decreases sequentially from near to far from the connection with the tail tube 2 of the frame. While ensuring strength, it reduces weight and helps to improve the stability of installation and the overall vehicle mode.

[0031] Please see Figure 3 , Figure 4 and Figure 5 To better understand the motorcycle rear grab handle, its installation structure is described as follows: The installation structure includes a frame, vertical bolts 11, horizontal bolts 12, and the motorcycle rear grab handle. The frame includes a frame tail tube 2. A mounting lug 13 protrudes from the outward side of the frame tail tube 2 in the vehicle width direction. A vertical threaded hole 14 is provided on the upper surface of the mounting lug 13. A horizontal threaded hole 15 is provided on the outward side of the frame tail tube 2 in the vehicle width direction. The horizontal threaded hole 15 is located in front of the mounting lug 13 in the vehicle length direction. A first stepped surface 9 abuts against the top of the mounting lug 13. A connecting lug 7 connects to the frame tail tube 2 at... The vertical bolt 11 passes through the vertical mounting hole 6 and is threaded into the vertical threaded hole 14. The horizontal bolt 12 passes through the horizontal mounting hole 8 and is threaded into the horizontal threaded hole 15. In this embodiment, a washer 16 is also provided between the connecting ear 7 and the frame tail tube 2 on the outward side in the vehicle width direction. The washer 16 is fitted onto the horizontal bolt 12. In practice, there are two frame tail tubes 2, which are spaced apart along the vehicle width direction. The length direction of the frame tail tube 2 corresponds to the vehicle length direction. The motorcycle rear grab handle is installed on the outward side of the two frame tail tubes 2 in the vehicle width direction.

[0032] In summary, the motorcycle rear grab handle of this utility model has a connecting lug 7 on the forward-facing side of the free end of the support part 3 along the vehicle length direction. A transverse mounting hole 8 is provided through the connecting lug 7, and a vertical mounting hole 6 is provided through the free end of the support part 3. Correspondingly, a transverse threaded hole 15 and a mounting lug 13 are provided on the outer side of the frame tail tube 2, with a vertical threaded hole 14 on the mounting lug 13. During installation, the connecting lug 7 abuts laterally against the frame tail tube 2, and is fixed by a transverse bolt 12 passing through the transverse mounting hole 8 and engaging with the transverse threaded hole 15. The free end of the support part 3 abuts against the top of the mounting lug 13 via a first stepped surface 9, and is further secured by… The vertical bolt 11 passes through the vertical mounting hole 6 and engages with the vertical threaded hole 14 to achieve fixation; the connecting ear 7 replaces the previously designed horizontal mounting part 1, and the vertical connection is changed to a horizontal connection. This not only helps to reduce the torque of the rear handrail during use, thereby improving the reliability and stability of the connection between the rear handrail and the frame, but also the connecting ear 7 abuts laterally with the frame tail tube 2, which can avoid the height difference between the connection between the frame and the rear handrail and the rear handrail. This is beneficial to control the weight of the rear handrail and optimize the overall vehicle mode. The support part 3 is vertically connected to the mounting ear 13 on the frame tail tube 2 through the vertical mounting hole 6, which not only prevents the rear handrail from rotating, but also facilitates installation.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit the technical solutions. Those skilled in the art should understand that any modifications or equivalent substitutions to the technical solutions of this utility model that do not depart from the spirit and scope of this technical solution should be covered within the scope of the claims of this utility model.

Claims

1. A motorcycle rear grab handle, characterized in that: The rear armrest body is L-shaped and includes a connected support part and a grip part. A vertical mounting hole is provided through the free end of the support part. A connecting ear is formed on the side of the free end of the support part away from the free end of the grip part. A horizontal mounting hole is provided through the connecting ear.

2. The motorcycle rear grab handle according to claim 1, characterized in that: A first stepped surface is formed by a recess between the end face of the free end of the support and the lower surface, and a vertical mounting hole penetrates the lower first stepped surface.

3. The motorcycle rear grab handle according to claim 2, characterized in that: A second stepped surface is formed by a recess between the end face of the free end of the support and the upper surface, and a vertical mounting hole penetrates the second stepped surface.

4. The motorcycle rear grab handle according to claim 3, characterized in that: The first and second stepped surfaces are positioned away from the connecting ear on the free end of the support.

5. A motorcycle rear grab handle according to claim 1, characterized in that: The connection between the support and the grip is smoothly transitioned by an arc surface, and the cross-sectional area of ​​the rear armrest body decreases sequentially from the free end of the support to the free end of the grip.

6. A motorcycle rear grab handle mounting structure, characterized in that: The invention includes a frame, vertical bolts, horizontal bolts, and a motorcycle rear grab handle as described in any one of claims 2-5. The frame includes a frame tail tube, on which a mounting lug protrudes outward in the vehicle width direction. The upper surface of the mounting lug has a vertical threaded hole, and the frame tail tube has a horizontal threaded hole on the outward side in the vehicle width direction, located in front of the mounting lug in the vehicle length direction. A first stepped surface abuts against the top of the mounting lug, and a connecting lug abuts against the outward side of the frame tail tube in the vehicle width direction. The vertical bolt passes through the vertical mounting hole and is threadedly connected to the vertical threaded hole, and the horizontal bolt passes through the horizontal mounting hole and is threadedly connected to the horizontal threaded hole.

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