Front vertical pipe assembly and motorcycle frame

Abstract

The utility model discloses a front stand pipe component and motorcycle frame, including the front stand pipe and adjusting component, when used, the front stand pipe is articulated with the front frame of motorcycle and can be driven to swing around the articulated axis so as to change the front rake angle of the front stand pipe, the adjusting component includes active adjusting piece and fixed adjusting piece, when used, the adjusting component is fixed on the front stand pipe. The fixed adjusting piece is fixed to the front frame, and the driving adjusting piece is meshed with the fixed adjusting piece and can change the meshing position or lock the meshing position, so that the front vertical pipe is driven to swing around the hinge axis. When the front vertical pipe assembly is installed on the motorcycle, the front inclination angle of the motorcycle can be adjusted, a driver and passengers can conveniently adjust the front inclination angle of the motorcycle according to using requirements, and therefore the control flexibility and the driving stability of the motorcycle are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycles, and particularly relates to a front riser assembly and a motorcycle frame. Background Art

[0002] As a flexible means of transportation, motorcycles are widely used. The rake angle of the front riser of a motorcycle is a core parameter affecting the steering performance of the motorcycle. The rake angle of a motorcycle refers to the angle between the front fork and the ground, or the angle between the front support (shock absorber tube) of the frame and the ground. When the rake angle is small, the motorcycle has flexible steering performance. At present, the adjustment method of the rake angle of a motorcycle is relatively complex, and the adjustment mechanism requires more components, resulting in an increase in production costs.

[0003] Therefore, there is an urgent need to develop a front riser assembly and a motorcycle frame that can adjust the rake angle of the motorcycle, thereby improving the controllability of the motorcycle, enhancing the flexible shuttling ability of the motorcycle on urban streets and the driving stability on highways, improving the riding experience of users, and having a simple operation method for adjustment, with the required components being more concise than the prior art, saving production costs. Summary of the Invention

[0004] In view of this, the purpose of the utility model is to provide a front riser assembly and a motorcycle frame that can adjust the rake angle of the motorcycle, thereby improving the controllability of the motorcycle, enhancing the flexible shuttling ability of the motorcycle on urban streets and the driving stability on highways, improving the riding experience of users, and having a simple operation method for adjustment, with the required components being more concise than the prior art, saving production costs.

[0005] The front riser assembly of the utility model includes a front riser and an adjustment assembly. When in use, the front riser is hinged to the front frame of the motorcycle and can be driven to swing around the hinge axis, thereby changing the rake angle of the front riser. The adjustment assembly includes an active adjustment member and a fixed adjustment member. When in use, the fixed adjustment member is fixed to the front frame, and the active adjustment member is engaged with the fixed adjustment member and can change the engagement position or lock the engagement position, thereby driving the front riser to swing around the hinge axis; by engaging the active adjustment member with the fixed adjustment member and changing the engagement position at the same time, when the front riser is hinged to the front frame, the front riser is driven to swing around the hinge axis, so that the rake angle of the motorcycle is adjustable. The overall adjustment structure is concise, and the engagement position can be locked, improving the stability of the adjustment system.

[0006] Furthermore, the active adjusting member is a worm, and the fixed adjusting member is a worm gear; the axis of the worm is parallel to the axis of the front riser and forms a single-degree-of-freedom rotational fit with the front riser. The active adjusting member is a worm, and the fixed adjusting member is a worm gear. Through the cooperation of the worm gear and the worm, and by using the self-locking principle of the worm gear and the worm, the stability and reliability of the adjustment system are ensured. The worm forms a single-degree-of-freedom rotational fit with the front riser. By rotating the worm, the front riser is driven to swing, making the structure simple and reliable.

[0007] Furthermore, the axis of the meshing trajectory of the worm and the worm gear coincides with the hinge axis where the front riser is hinged to the front frame; the center of the meshing trajectory of the worm and the worm gear is the hinge axis where the front riser is hinged to the front frame, which is convenient for driving the front riser to swing through the cooperation of the worm and the worm gear.

[0008] Furthermore, the worm gear is provided with a mounting portion, and the mounting portion is located in a receiving groove. After the receiving groove is installed, the bottom of the receiving groove is closely attached to the end of the front frame of the motorcycle, and both sides of the receiving groove are closely attached to the lateral sides of the front frame.

[0009] Furthermore, the adjusting assembly further includes an adjusting seat. The front end of the adjusting seat is provided with a fitting groove and is fixedly installed with the front riser by half-surrounding the front riser through the fitting groove. The adjusting seat is provided with a vertical through hole, and the worm is installed in the through hole and forms a single-degree-of-freedom rotational fit with the adjusting seat; the fitting groove half-surrounds the front riser, and at the same time, it is welded or integrally formed with the front riser, which is convenient for forming and processing.

[0010] The rear side of the adjusting seat is provided with an opening, and the worm meshes with the worm gear through the opening.

[0011] Furthermore, it further includes a hinge ear, and the hinge ear is arranged at the rear side of the adjusting seat. During use, the front riser is hinged to the front frame of the motorcycle through the hinge ear.

[0012] Furthermore, the adjustable angle of the rake angle is 6° to 12°; the maximum adjustable angle of the rake angle is 12°, which improves the applicability to different models, and the adjustment range is large, which can further improve the controllability of the motorcycle.

[0013] For the motorcycle frame of the present utility model, the frame includes a front frame, and the front riser assembly is installed on the front frame.

[0014] Advantages of the present utility model: For the front riser assembly and motorcycle frame of the present utility model, the rake angle of the motorcycle front riser is adjustable, and the adjustment structure is more concise and reliable compared with the prior art. By changing the meshing position of the active adjustment part and the fixed adjustment part, the rake angle of the front riser is changed, and the meshing position can be locked, so that the adjustment system has better stability, facilitating the rider to adjust the rake angle of the front riser according to the usage needs, improving the controllability of the motorcycle, enhancing the flexible shuttling ability of the motorcycle on urban streets and the driving stability on highways, and improving the riding experience of users. Brief Description of the Drawings

[0015] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0016] Figure 1 It is a schematic structural diagram when the front riser assembly is installed on the front frame;

[0017] Figure 2 is Figure 1 exploded view of;

[0018] Figure 3 It is an effect diagram of rake angle adjustment;

[0019] Among them, the above-mentioned drawings include the following reference numerals:

[0020] 1. Front frame; 2. Front riser assembly; 201. Front riser; 2011. Adjustment seat; 2012. Hinge ear; 202. Active adjustment part; 203. Fixed adjustment part; 204. Fitting groove; 3. Worm locking nut. Detailed Embodiment

[0021] Figure 1 It is a schematic structural diagram when the front riser assembly is installed on the front frame, Figure 2 is Figure 1 exploded view of, Figure 3 It is an effect diagram of rake angle adjustment, as shown in Figures 1-3As shown: A front riser assembly 2 of this embodiment includes a front riser 201 and an adjustment assembly. During use, the front riser 201 is hinged to the front frame 1 of the motorcycle and can be driven to swing around the hinge axis, thereby changing the rake angle of the front riser 201. The adjustment assembly includes an active adjustment member 202 and a fixed adjustment member 203. During use, the fixed adjustment member 203 is fixed to the front frame 1, and the active adjustment member 202 engages with the fixed adjustment member 203 and can change the engagement position or lock the engagement position, thereby driving the front riser 201 to swing around the hinge axis; in this structure, when the front riser assembly 2 is installed on the front frame 1, by changing the engagement position between the active adjustment member 202 and the fixed adjustment member 203, the front riser 201 is driven to swing around the hinge axis (swing in the front-rear direction relative to the motorcycle frame), thereby changing the rake angle of the motorcycle frame, which can meet the different usage needs of the riders and passengers, improve the riding experience, and enhance the controllability of the motorcycle; at the same time, when the set engagement position is reached, the set engagement position can be locked (that is, for the set engagement position to change again, the position of the active adjustment member 202 needs to be changed to make the engagement position change), improving the stability of the entire rake angle adjustment system; the active adjustment member 202 and the fixed adjustment member 203 can be a combination of a worm gear and a worm, or a combination of two gears. One of the gears has sides at both ends (forming a structure similar to a pulley), and the other gear is fixed to the front frame 1 and meshes with the gear with sides. The sides are connected to the front frame gear at two points, and the gear with sides is provided on the front riser through a mounting seat. At the same time, the two gears are provided with two pins, and a strip-shaped adjustment hole is provided on the mounting seat. Through the cooperation of one of the pins, the strip-shaped adjustment hole and the gear with sides, the change of the engagement trajectory is realized, thereby changing the rake angle of the front riser.

[0022] In the prior art, the rake angle of a motorcycle is a core parameter affecting the steering performance of the motorcycle. The rake angle of a motorcycle refers to the angle between the front fork and the ground, or the front support (shock absorber tube) of the frame and the ground. When the rake angle is small, the motorcycle has a flexible steering performance; currently, the adjustment method of the motorcycle rake angle is relatively complex, and the adjustment mechanism requires more components, resulting in an increase in production costs; the front riser assembly of the present invention can adjust the rake angle of the motorcycle during use, and the adjustment method is more reliable than the prior art, and the entire adjustment system has high stability. Compared with the prior art, the required components are greatly reduced, saving production costs.

[0023] In this embodiment, the active adjusting member 202 is a worm, and the fixed adjusting member is a worm gear; the axis of the worm is parallel to the axis of the front riser 201 and forms a single-degree-of-freedom rotational fit with the front riser 201; in this structure, through the transmission cooperation between the worm gear and the worm, the rake angle can be adjusted, simplifying the adjustment process and making the overall structure simple and reliable; at the same time, by using the self-locking principle of the worm gear and the worm, the stability and reliability of the adjustment process are ensured. In this structure, when the lead angle of the worm is less than the equivalent friction angle between the meshing teeth, self-locking can be achieved, which is common knowledge well-known to those skilled in the art and will not be elaborated here; the worm forms a single-degree-of-freedom rotational fit with the front riser 201, which is convenient for improving the stability of the adjustment system. After adjusting the rake angle to the set angle by rotating the worm, the adjustment system will not bounce up and down due to the self-locking principle of the worm and the worm gear.

[0024] In this embodiment, the axis of the meshing trajectory of the worm and the worm gear coincides with the hinge axis of the front riser 201 hinged to the front frame 1; the meshing trajectory of the worm and the worm gear (i.e., the movement trajectory formed by different meshing positions) can be arc-shaped. A parallel line is drawn through the center or center of this meshing trajectory, which is the hinge axis when the front riser 201 is hinged to the front frame 1. Therefore, the axis of the meshing trajectory of the worm and the worm gear coincides with or is the hinge axis of the front riser 201 hinged to the front frame 1, so that the front riser 201 can be driven to swing around the hinge axis.

[0025] In this embodiment, the worm gear is provided with an installation part, and the installation part is located in a receiving groove. After the receiving groove is installed, the bottom of the receiving groove closely adheres to the end of the front frame 1 of the motorcycle, and both sides of the receiving groove closely adhere to the lateral sides of the front frame 1; the lateral direction is the left-right direction of the motorcycle. Installing the worm gear in the receiving groove through an installation part can prevent the worm gear from interfering with other components.

[0026] In this embodiment, the adjusting assembly further includes an adjusting seat 2011. A fitting groove 204 is provided at the front end of the adjusting seat 2011, and the front riser 201 is semi-surrounded by the fitting groove 204 and fixedly installed with the front riser 201. The adjusting seat 2011 is provided with a vertical through hole, and the worm is installed in the through hole and forms a single-degree-of-freedom rotational fit with the adjusting seat 2011. The fitting groove 204 can be fixedly connected to the front riser 201 by welding or integrally forming with the front riser 201. The adjusting seat 2011 is provided with a through hole in the vertical direction (relative to the up and down direction of the motorcycle), and the upper end of the through hole is open. The worm is inserted into the through hole to form a single-degree-of-freedom rotational fit with the adjusting seat 2011. A worm locking nut 3 is provided corresponding to the worm. When it is necessary to adjust the rake angle, the worm locking nut 3 is adjusted, and then the worm is rotated. Under the cooperation of the worm and the worm gear, when the front riser is hinged to the front frame, the front riser 201 is driven to swing around the hinge axis where the front riser 201 is hinged to the front frame 1 until the required angular position is reached and the adjustment is stopped. At this time, due to the self-locking principle of the worm and the worm gear, the entire adjusting assembly is in a stable state, and the worm will not shake. Finally, the worm locking nut 3 is adjusted to complete the adjustment of the rake angle. The increase or decrease of the rake angle is achieved by the forward or reverse rotation of the worm.

[0027] An opening is provided at the rear side of the adjusting seat 2011, and the worm is engaged with the worm gear through the opening. Front and rear refer to the front and rear directions of the motorcycle. The opening at the rear side of the adjusting seat 2011 facilitates the engagement of the worm with the worm gear through the opening, thereby realizing the adjustment of the rake angle.

[0028] In this embodiment, a hinge ear 2012 is further included. The hinge ear 2012 is arranged at the rear side of the adjusting seat 2011. During use, the front riser 201 is hinged to the front frame 1 of the motorcycle through the hinge ear 2012. The hinge ear 2012 is formed with an opening groove and is provided with a hinge hole.

[0029] In this embodiment, the adjustable angle of the rake angle is 6° to 12°. In this structure, the rake angle can be increased by 6°, 12° or other angles from the initial angle (i.e., the angle when the rake angle is not adjusted), and the maximum adjustable angle can be increased by 12°, so that the rake angle has a relatively large adjustable range, thereby meeting the usage requirements of various motorcycle models.

[0030] A motorcycle frame of the present utility model, the frame includes a front frame 1, and a front riser assembly 2 is installed on the front frame 1.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A front riser assembly, characterized in that: The utility model comprises a front riser and an adjustment assembly. When in use, the front riser is hinged to the front frame of the motorcycle and can be driven to swing around the hinge axis so as to change the front inclination angle of the front riser. The adjustment assembly comprises an active adjustment member and a fixed adjustment member. When in use, the fixed adjustment member is fixed to the front frame, and the active adjustment member is engaged with the fixed adjustment member and can change the engaged position or lock the engaged position, so as to drive the front riser to swing around the hinge axis.

2. The front riser assembly according to claim 1, characterized in that: The active adjusting member is a worm, and the fixed adjusting member is a worm wheel; the axis of the worm is parallel to the axis of the front standpipe and forms a single-degree-of-freedom rotational fit with the front standpipe.

3. The front riser assembly according to claim 2, characterized in that: The axis of the meshing track between the worm and the worm wheel coincides with the hinge axis of the front stand pipe hinged to the front frame.

4. The front riser assembly according to claim 2, characterized in that: The worm wheel is provided with a mounting portion, and the mounting portion is located in a receiving groove. After the receiving groove is installed, the bottom of the receiving groove is closely attached to the end of the front frame of the motorcycle, and the two sides of the receiving groove are closely attached to the lateral sides of the front frame.

5. The front riser assembly according to claim 2, characterized in that: The adjustment assembly also includes an adjustment seat, a fitting groove is provided at the front end of the adjustment seat, and the fitting groove is half-wrapped around the front standpipe and fixedly installed with the front standpipe, and the adjustment seat is provided with an upper and lower through hole, and the worm is installed in the through hole and forms a single-degree-of-freedom rotational fit with the adjustment seat; An opening is arranged on the rear side of the adjusting seat, and the worm is meshed with the worm wheel through the opening.

6. The front riser assembly according to claim 5, characterized in that: It also includes an articulated ear, which is arranged on the rear side of the adjustment seat. When in use, the front standpipe is articulated to the front frame of the motorcycle through the articulated ear.

7. The front riser assembly according to claim 1, characterized in that: The adjustable angle of the forward inclination angle is 6° to 12°.

8. A motorcycle frame, characterized in that: The frame includes a front frame, and the front riser assembly according to any one of claims 1 to 7 is installed on the front frame.

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