Solar charging device of electric two-wheeled vehicle and electric two-wheeled vehicle

Abstract

The utility model provides an electric two-wheeled vehicle solar energy charging device and electric two-wheeled vehicle, including mounting rack and solar energy battery pack, solar energy battery pack at least includes first solar energy battery unit and second solar energy battery unit, the top of first solar energy battery unit is articulated with mounting rack, and the top of second solar energy battery unit is articulated with mounting rack. The bottom of the first solar cell unit is hinged to the bottom of the second solar cell unit. The installation frame is provided with a folding limiting piece and an unfolding limiting piece, the folding limiting piece is lower than the rotating axis of the hinged position of the first solar cell unit and the installation frame, and when the solar cell pack is in a folded state, the second solar cell unit is closer to the folding limiting piece than the first solar cell unit. The folding limiting piece is used for limiting the second solar cell unit; when the solar battery pack is unfolded, the first solar battery unit is limited by the unfolding limiting piece. The solar battery pack can be prevented from turning over due to inertia, and then the situation that a rider is injured is avoided.

Description

Technical Field

[0001] The utility model relates to the field of solar vehicles, in particular to a solar charging device for an electric two-wheeler and an electric two-wheeler. Background Art

[0002] Two-wheelers (such as bicycles, electric bicycles, etc.) have the advantages of being flexible to use and convenient to park, and are essential personal transportation tools in people's daily lives. Currently, in order to facilitate the charging of electric two-wheelers on the market, a solar charging device is installed on the electric two-wheeler to charge the electric vehicle. However, the existing solar charging devices in the current technology have the following defects: when it is retracted, a pull rope is used as a restraint device to prevent the solar panel from flipping forward and hitting the rider during braking, but there may be a risk of fracture such as fatigue failure of the pull rope during use. Once the pull rope fails, it will still cause injury to personnel or damage to components. In addition, the existing solar charging devices often conflict with the trunk of the electric two-wheeler after being deployed, so the trunk cannot be installed after the solar charging device is installed. Summary of the Invention

[0003] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide a solar charging device for an electric two-wheeler and an electric two-wheeler, which are used to solve the problems existing in the prior art.

[0004] To achieve the above purpose and other related purposes, one aspect of the present utility model provides a solar charging device for an electric two-wheeler, including a mounting frame and a solar battery pack. Among them, the mounting frame is used to be connected to the vehicle body of the electric two-wheeler. The solar battery pack at least includes a first solar battery unit and a second solar battery unit. The top of the first solar battery unit is hinged to the mounting frame, and the bottom of the first solar battery unit is hinged to the bottom of the second solar battery unit. A retraction limiting member and an unfolding limiting member are provided on the mounting frame. The retraction limiting member is lower than the rotation axis of the hinge between the first solar battery unit and the mounting frame. When the solar battery pack is in a retracted state, the second solar battery unit is closer to the retraction limiting member than the first solar battery unit. When the solar battery pack is retracted, the retraction limiting member limits the second solar battery unit. When the solar battery pack is unfolded, the unfolding limiting member limits the first solar battery unit.

[0005] Preferably, the mounting bracket includes a connecting bracket and a supporting bracket. Among them, the connecting bracket is used to connect with the vehicle body of the electric two-wheeler. The supporting bracket includes a transverse plate and two vertical side plates. The two vertical side plates are respectively connected to both ends of the transverse plate, and the two vertical side plates extend in the vertical direction and are perpendicular to the transverse plate. The left and right sides of the top of the first solar cell unit are respectively hinged to the two vertical side plates, and the bottom of the first solar cell unit is hinged to the bottom of the second solar cell unit through a first chicken beak hinge; the transverse plate of the supporting bracket forms the folding limiting member.

[0006] Preferably, the transverse plate is made of a magnetic material, and a magnetic attraction sheet is provided on the second solar cell unit and close to the transverse plate. When the solar cell group is folded, the magnetic attraction sheet is attracted to the transverse plate.

[0007] Preferably, the unfolding limiting member includes an unfolding limiting rivet fixedly arranged on the vertical side plate. When the solar cell group is unfolded, the first solar cell unit abuts against the unfolding limiting rivet.

[0008] Preferably, the top of the first solar cell unit is hinged to the mounting bracket through a hinge plate. One end of the hinge plate is hinged to the mounting bracket, and the other end of the hinge plate is fixedly connected to the first solar cell unit; when the solar cell group is unfolded, the unfolding limiting member limits the hinge plate.

[0009] Preferably, a locking unit is provided between the first solar cell unit and the second solar cell unit. When the first solar cell unit and the second solar cell unit are folded, the locking unit can lock the second solar cell unit and the first solar cell unit.

[0010] Preferably, the locking unit includes a lock buckle movable part fixedly arranged on the first solar cell unit and a lock buckle fixed part fixedly arranged on the second solar cell unit. When the first solar cell unit and the second solar cell unit are folded, the lock buckle movable part is buckled with the lock buckle fixed part.

[0011] Preferably, both the first solar cell unit and the second solar cell unit include a magnetic frame and solar cell wafers. The solar cell wafers are arranged in the magnetic frames; when the first solar cell unit and the second solar cell unit are folded, the magnetic frames of the first solar cell unit and the second solar cell unit are attracted to each other.

[0012] Preferably, the solar cell pack further includes a third solar cell unit. When the solar cell pack is in a retracted state, the third solar cell unit is disposed between the first solar cell unit and the second solar cell unit, and the top of the third solar cell unit is hinged to the top of the second solar cell unit.

[0013] As described above, the solar charging device of the electric two-wheeler of the present invention has the following beneficial effects: Since the top of the solar cell pack is hinged to the top of the mounting frame, when the solar cell pack is in a retracted state, the center of gravity of the solar cell pack must be lower than the hinge point where the solar cell pack is hinged to the mounting frame. Therefore, when the electric bicycle brakes, the solar cell pack can be prevented from rotating counterclockwise forward under the action of inertia, so that the solar cell pack can be prevented from hitting the rider and avoiding personal injury. At the same time, since the retraction limiting member is also lower than the rotation axis of the first solar panel, that is, the hinge point where the solar cell pack is hinged to the mounting frame, the retraction limiting member can prevent the solar cell pack from rotating clockwise forward, thereby avoiding the collision between the solar cell pack and the vehicle frame, and further avoiding damage to the solar cell pack and the vehicle frame members, improving the safety during riding.

[0014] On the other hand, the present invention also provides an electric two-wheeler, and the electric two-wheeler includes the above-mentioned solar charging device.

[0015] The beneficial effects of the electric two-wheeler are the same as those of the above-mentioned solar charging device, so they will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It shows a schematic structural view of the solar charging device according to Embodiment 1 of the present invention when installed on an electric two-wheeler and in a retracted state.

[0017] Figure 2 It shows what is provided by the present invention Figure 1 An enlarged view of part A.

[0018] Figure 3 It shows what is provided by the present invention Figure 2 An isometric schematic view.

[0019] Figure 4 It shows what is provided by the present invention Figure 3 An exploded view.

[0020] Figure 5 It shows a schematic structural view of the solar charging device according to Embodiment 1 of the present invention when in an unfolded state.

[0021] Figure 6 It shows what is provided by the present inventionFigure 5 Enlarged view at B in the [device].

[0022] Figure 7 Shown is the [device] provided by the present utility model Figure 6 in an isometric schematic view.

[0023] Figure 8 Shown is a schematic structural view of the solar charging device according to the second embodiment of the present utility model when in a retracted state.

[0024] Figure 9 Shown is the [device] provided by the present utility model Figure 8 in an enlarged view at A in the [device].

[0025] Figure 10 Shown is the [device] provided by the present utility model Figure 9 in an isometric schematic view.

[0026] Figure 11 Shown is the [device] provided by the present utility model Figure 10 in an exploded view.

[0027] Figure 12 Shown is a schematic structural view of the solar charging device according to the second embodiment of the present utility model when in an unfolded state.

[0028] Figure 13 Shown is the [device] provided by the present utility model Figure 12 in an enlarged view at B in the [device].

[0029] Figure 14 Shown is the [device] provided by the present utility model Figure 13 in an isometric schematic view.

[0030] Description of reference numerals

[0031] 100 Frame 01 Mounting frame

[0032] 02 Connecting frame 03 Support frame

[0033] 031 Horizontal plate 032 Vertical side plate

[0034] 04 Solar cell module 041 First solar cell unit

[0035] 0411 Hinge plate 042 Second solar cell unit

[0036] 0421 Magnetic sheet 043 Third solar cell unit

[0037] 0401 Solar cell 0402 Magnetic frame

[0038] 05 First beak hinge 050 First beak hinge shaft

[0039] 051 First chicken beak hinge piece 052 Second chicken beak hinge piece

[0040] 06 Second chicken beak hinge 07 Rivet

[0041] 08 Expansion limit rivet 09 Locking unit

[0042] 091 Lock catch fixing part 092 Lock catch movable part Detailed implementation mode

[0043] The following uses specific specific examples to illustrate the implementation mode of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation modes. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model.

[0044] In the description of the present utility model, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or connected through an intermediate medium. It can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0045] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. in the present utility model is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0046] Please refer to Figures 1 to 14 . It should be noted that the illustrations provided in this embodiment only illustrate the basic concept of the present utility model in a schematic manner. The drawings only show the components related to the present utility model, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and proportion of each component in its actual implementation can be an arbitrary change, and the component layout type may also be more complex.

[0047] Embodiment 1

[0048] The utility model provides a solar charging device for an electric two-wheeler. As Figure 1 and Figure 2 shown, the solar charging device includes a mounting frame 01 and a solar cell group 04. Among them, the mounting frame 01 is used to be connected to the frame 100 of the electric two-wheeler. The solar cell group 04 at least includes a first solar cell unit 041 and a second solar cell unit 042. Specifically, the top of the first solar cell unit 041 is hinged to the mounting frame 01, and the bottom of the first solar cell unit 041 is hinged to the bottom of the second solar cell unit 042. A retracting limiting member and an unfolding limiting member are further provided on the mounting frame 01. The retracting limiting member is lower than the rotation axis of the hinge between the first solar cell unit 041 and the mounting frame 01. When the solar cell group 04 is in the retracted state, the second solar cell unit 042 is closer to the retracting limiting member than the first solar cell unit 041. When the solar cell group 04 is retracted, the retracting limiting member can limit the second solar cell unit 042. When the solar cell group 04 is unfolded, the unfolding limiting member can limit the first solar cell unit.

[0049] When the utility model is in use, as Figure 1 shown, the mounting frame 01 of the solar charging device is connected to the frame 100 of the electric two-wheeler. When it is necessary to charge the electric two-wheeler, as Figures 5 to 7 shown, the solar cell group 04 is rotated counterclockwise upward to unfold the solar cell group 04. After unfolding, the first solar cell unit 041 is limited by the unfolding limiting member, so that the first solar cell unit 041 is unfolded at a set angle. Thus, under the sunlight irradiation, the first solar cell unit 041 and the second solar cell unit 042 can generate electric energy to charge the electric two-wheeler. When charging is not required and when riding a bike, as Figures 2 to 4As shown in the figure, the first solar cell unit 041 and the second solar cell unit 042 are buckled and folded, and the folded solar cell group 04 is limited by a folding limiting member. Since the top of the solar cell group 04 is hinged to the top of the mounting frame 01, when the solar cell group 04 is in the folded state, the center of gravity of the solar cell group must be lower than the hinge point where the solar cell group 04 is hinged to the mounting frame 01. Therefore, when the electric bicycle brakes, the solar cell group 04 can be prevented from rotating counterclockwise forward under the action of inertia, so that the solar cell group 04 can be prevented from hitting the rider and avoiding personal injury. At the same time, since the folding limiting member is also lower than the rotation axis of the first solar panel 041, that is, the hinge point where the solar cell group 04 is hinged to the mounting frame 01, the folding limiting member can prevent the solar cell group 04 from rotating clockwise forward, thereby avoiding the collision between the solar cell group 04 and the vehicle frame, and further avoiding damage to the solar cell group and damage to the vehicle frame members, improving the safety during riding.

[0050] Preferably, as Figure 3 and Figure 4 shown, in this embodiment, the mounting frame 01 includes a connecting frame 02 and a supporting frame 03. Among them, the connecting frame 02 is used to connect with the vehicle body 100 of the electric two-wheeler. The supporting frame 03 includes a transverse plate 031 and two vertical side plates 032. The two vertical side plates 032 are respectively connected to both ends of the transverse plate 031, and the two vertical side plates 032 extend in the vertical direction and are perpendicular to the transverse plate 031. The left and right sides of the top of the first solar cell unit 041 are respectively hinged to the two vertical side plates 032. Specifically, the transverse plate 031 of the supporting frame 03 forms the folding limiting member, and the bottom of the first solar cell unit 041 is hinged to the bottom of the second solar cell unit 042 through a first chicken beak hinge 05. Through this structural arrangement, as Figure 5 shown, since the top of the first solar cell unit 041 is hinged to the top of the vertical side plate 032 extending in the vertical direction, by setting the height of the vertical side plate to be greater than the height of the tail box, when the solar cell group 04 rotates counterclockwise upward and unfolds, the horizontal unfolding height of the solar cell group 04 will be higher than the tail box, so as to avoid the interference of the tail box, and further enable the electric two-wheeler to be able to install both a tail box and a solar charging device.

[0051] Specifically, as Figure 4As shown, in this embodiment, the first chicken beak hinge 05 includes a first chicken beak hinge piece 051, a second chicken beak hinge piece 052 and a first chicken beak hinge shaft 050. The first chicken beak hinge piece 051 is fixedly connected to the first solar cell unit 041 by a rivet. The second chicken beak hinge piece 052 is fixedly connected to the second solar cell unit 042 by a rivet. The first chicken beak hinge piece 051 and the second chicken beak hinge piece 052 are hinged by the first chicken beak hinge shaft 050. The structure is simple.

[0052] Further, as Figure 3 and Figure 4 shown, in this embodiment, the top of the first solar cell unit 041 is hinged to the top of the mounting bracket 01, i.e., the vertical side plate, through a hinge plate 0411. That is, one end of the hinge plate 0411 is hinged to the top of the vertical side plate 032 by a rivet 07, and the other end of the hinge plate 0411 is fixedly connected to the first solar cell unit 041 by a rivet.

[0053] Further, in order to improve the stability of the solar cell pack 04 when it is buckled and folded, preferably, as Figure 4 shown, in this embodiment, a magnetic attraction piece 0421 is provided on the second solar cell unit 042 and on the side close to the transverse plate 031. Correspondingly, the transverse plate 031 also has magnetism, that is, the transverse plate 031 is made of a magnetic material. Therefore, when the solar cell pack 04 is folded, the magnetic attraction piece 0421 can be attracted to the transverse plate 031. Of course, in other alternative embodiments, a magnetic attraction piece can also be provided on the transverse plate 031 so that the magnetic piece on the transverse plate 031 is attracted to the magnetic piece on the second solar cell unit 042.

[0054] Further, as Figure 3 、 Figure 6 and Figure 7 shown, in this embodiment, the unfolding limiting member includes an unfolding limiting rivet 08 fixedly provided on the vertical side plate 032. When the solar cell pack 04 unfolds, the hinge plate 0411 can abut against the unfolding limiting rivet 08, so that the first solar cell unit 041 unfolds at a set angle. That is, when the first solar cell unit 041 is directly hinged to the mounting bracket, when the solar cell pack 04 unfolds, the first solar cell unit abuts against the unfolding limiting rivet 08; when the first solar cell unit 041 is hinged to the mounting bracket through the hinge plate 0411, when the solar cell pack 04 unfolds, the hinge plate 0411 abuts against the unfolding limiting rivet 08.

[0055] Further, in order to improve the relative stability between the first solar cell unit 041 and the second solar cell unit 042, preferably, as Figure 3As shown, in this embodiment, a locking unit 09 is further provided between the first solar cell unit 041 and the second solar cell unit 042. When the first solar cell unit 041 and the second solar cell unit 042 are folded together, the locking unit 09 can lock the second solar cell unit 042 and the first solar cell unit 041 tightly.

[0056] Specifically, in this embodiment, the locking unit 09 includes a locking buckle movable part 092 fixedly arranged on the first solar cell unit 041 and a locking buckle fixed part 091 fixedly arranged on the second solar cell unit 042. When the first solar cell unit 041 and the second solar cell unit 042 are folded together, the locking buckle movable part 092 is buckled with the locking buckle fixed part 091.

[0057] Furthermore, as Figure 7 shown, in other alternative embodiments, the first solar cell unit 041 and the second solar cell unit 042 both include a magnetic frame 0402 and solar cells 0401. The solar cells 0401 are arranged in the magnetic frame 0402. When the first solar cell unit 041 and the second solar cell unit 042 are folded together, the magnetic frames 0402 of the first solar cell unit 041 and the second solar cell unit 042 are attracted to each other. That is, in other alternative embodiments, the magnetic frames 0402 of the first solar cell unit 041 and the second solar cell unit 042 constitute the locking unit 09.

[0058] Embodiment Two

[0059] As Figures 8 to 14 shown, in the second embodiment, the solar cell group 04 further includes a third solar cell unit 043. When the solar cell group 04 is in a folded state, the third solar cell unit 043 is arranged between the first solar cell unit 041 and the second solar cell unit 042, and the top of the third solar cell unit 043 is hinged to the top of the second solar cell unit 042. By adding the third solar cell unit 043, the charging efficiency of the electric two-wheeler can be improved. Specifically, the top of the third solar cell unit 043 is hinged to the top of the second solar cell unit 042 through a second chicken beak hinge 06. The second chicken beak hinge 06 has the same structure as the first chicken beak hinge 05, so it will not be described in detail here.

[0060] Preferably, in this embodiment, as Figure 14As shown, the first solar cell unit 041, the second solar cell unit 042, and the third solar cell unit 043 each include a magnetic frame 0402 and a solar cell 0401, and the solar cell 0401 is disposed within the magnetic frame 0402. When the first solar cell unit 041, the second solar cell unit 042, and the third solar cell unit 043 are folded up, the magnetic frames 0402 of the first solar cell unit 041, the magnetic frames 0402 of the second solar cell unit 042, and the magnetic frames 0402 of the third solar cell unit 043 attract each other. Thereby, the stability between the first solar cell unit 041, the second solar cell unit 042, and the third solar cell unit 043 can be improved.

[0061] On the other hand, the present utility model also provides an electric two-wheeler, which includes the solar charging device of the electric two-wheeler described above. The beneficial effects of the electric two-wheeler are the same as those of the above-described solar charging device, and thus will not be elaborated herein.

[0062] In summary, for the solar charging device and the electric two-wheeler of the present utility model, when the electric two-wheeler brakes, it can prevent the solar battery pack from flipping counterclockwise forward due to inertia, thereby preventing the solar battery pack from hitting the rider and avoiding personal injury; at the same time, by limiting the movement direction of the solar battery pack through the folding limit member, it also prevents the solar battery pack from rotating clockwise forward, thereby preventing the solar battery pack from colliding with the vehicle frame and avoiding damage to the solar battery pack and the vehicle frame components, improving the safety during riding. At the same time, it can also enable the electric two-wheeler to be able to install a tail box and the solar charging device. Therefore, the present utility model effectively overcomes various drawbacks in the prior art and has high industrial utilization value.

[0063] The above embodiments are merely illustrative of the principles and effects of the present utility model and are not intended to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A solar charging device for an electric two-wheeled vehicle, characterized in that: It comprises a mounting frame and a solar cell group, wherein the mounting frame is used to connect to the body of the electric two-wheeled vehicle, the solar cell group comprises at least a first solar cell unit and a second solar cell unit, the top of the first solar cell unit is hinged to the mounting frame, and the bottom of the first solar cell unit is hinged to the bottom of the second solar cell unit; a folding limiter and an unfolding limiter are provided on the mounting frame, the folding limiter is lower than the rotation axis at the hinge between the first solar cell unit and the mounting frame, and when the solar cell group is in a folded state, the second solar cell unit is closer to the folding limiter than the first solar cell unit; when the solar cell group is folded, the folding limiter limits the second solar cell unit, and when the solar cell group is unfolded, the unfolding limiter limits the first solar cell unit.

2. A solar charging device for an electric two-wheeled vehicle according to claim 1, characterized in that: The mounting frame includes a connecting frame and a supporting frame, wherein the connecting frame is used to connect to the body of the electric two-wheeled vehicle, and the supporting frame includes a transverse plate and two vertical side plates, the two vertical side plates are respectively connected to the two ends of the transverse plate, and the two vertical side plates extend in the vertical direction and are perpendicular to the transverse plate, the left and right sides of the top of the first solar cell unit are respectively hinged to the two vertical side plates, and the bottom of the first solar cell unit is hinged to the bottom of the second solar cell unit through a first chicken-beak hinge; the transverse plate of the supporting frame forms the folding limit piece.

3. A solar charging device for an electric two-wheeled vehicle according to claim 2, characterized in that: The transverse plate is made of magnetic material. A magnetic sheet is provided on one side of the second solar cell unit close to the transverse plate. When the solar cell group is folded, the magnetic sheet is attracted to the transverse plate.

4. A solar charging device for an electric two-wheeled vehicle according to claim 2, characterized in that: The deployment limiting member includes a deployment limiting rivet fixedly arranged on the vertical side plate. When the solar cell group is deployed, the first solar cell unit abuts against the deployment limiting rivet.

5. The solar charging device for an electric two-wheeled vehicle according to claim 1, characterized in that: The top of the first solar cell unit is hinged to the mounting frame via a hinge plate, one end of the hinge plate is hinged to the mounting frame, and the other end of the hinge plate is fixedly connected to the first solar cell unit; when the solar cell group is unfolded, the unfolding limiter limits the hinge plate.

6. The solar charging device for an electric two-wheeled vehicle according to claim 1, characterized in that: A locking unit is provided between the first solar cell unit and the second solar cell unit, and when the first solar cell unit and the second solar cell unit are folded together, the locking unit can lock the second solar cell unit and the first solar cell unit.

7. A solar charging device for an electric two-wheeled vehicle according to claim 6, characterized in that: The locking unit includes a locking movable portion fixedly disposed on the first solar cell unit and a locking fixed portion fixedly disposed on the second solar cell unit. When the first solar cell unit and the second solar cell unit are folded together, the locking movable portion is engaged with the locking fixed portion.

8. The solar charging device for an electric two-wheeled vehicle according to claim 6, characterized in that: The first solar cell unit and the second solar cell unit both include a magnetic frame and a solar cell sheet, and the solar cell sheet is arranged in the magnetic frame; when the first solar cell unit and the second solar cell unit are folded together, the magnetic frame of the first solar cell unit and the magnetic frame of the second solar cell unit are attracted to each other.

9. A solar charging device for an electric two-wheeled vehicle according to any one of claims 1 to 8, characterized in that: The solar cell group also includes a third solar cell unit. When the solar cell group is in a folded state, the third solar cell unit is arranged between the first solar cell unit and the second solar cell unit, and the top of the third solar cell unit is hinged to the top of the second solar cell unit.

10. An electric two-wheeled vehicle, characterized in that: The electric two-wheeled vehicle comprises the solar charging device for an electric two-wheeled vehicle as claimed in any one of claims 1 to 9.

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