KR100506660B1 - Wheel-exchangeable scooter - Google Patents

Abstract

The present invention provides a variable wheel scooter that can be used by assembling two or three wheels as needed. The scooter has a frame in which a driver or passenger can board and seats are installed; A steering shaft rotatably installed in front of the frame, a front wheel rotatably installed at a lower end thereof, and a steering shaft provided with a handle, a brake, a motor operating lever, and an engine operating grip that can be operated by a driver by a driver at the upper end thereof; A mounting frame integrally provided at the rear of the frame, having a two-wheel center mounting portion formed at a center thereof, a first wheel mounting portion having two wheels formed at one side thereof, and a second wheel mounting portion having three three wheels formed at the other side thereof; And a rear wheel, which is movably mounted to the mounting frame and has a rear wheel, and is detachably fixed to the center mounting portion of the mounting frame when assembling two wheels, and is moved and fixed to the first side mounting part when assembling three wheels. And, it is composed of a three-wheel-only drive unit that is releasably fixed to the second side mounting portion of the mounting frame only when the three-wheel assembly, the speech to the two-wheel drive.

Description

Wheel-Shaped Scooter {Wheel-exchangeable scooter}

The present invention relates to a wheel variable scooter, and more particularly, to a wheel variable scooter capable of allowing a user or a driver to arbitrarily adjust the number of wheels and allowing power to be adjusted according to the number of wheels.

In general, a scooter is referred to as a small motorized or mini motorcycle, and is easily used for leisure, sports, and short distance transportation because it is easy to walk and park, and has excellent driving fuel efficiency and driving performance.

As shown in FIG. 1, the two-wheeled scooter includes a frame 1 forming a basic skeleton, a front wheel 2 rotatably installed in front of the frame, and a rotatably installed rear of the frame. A rear wheel 3, a steering shaft 4 for manipulating the front wheel 2 to the left and right, a steering wheel 5 provided at an upper end of the steering shaft 4, and installed at both ends of the steering wheel; The brake lever 6, the speed control lever 7 installed at one end of the handle, the engine 8 mounted on the frame 1 for transmitting power to the rear wheel 3, and the frame 1 The sheet 9 to be provided is provided. Such a two-wheeled scooter can be driven by an adult or a person with a normal body, and can be driven at a relatively high speed.

Meanwhile, as shown in FIG. 2, the three-wheeled scooter is configured similarly to the two-wheeled scooter except that two rear wheels 3 are installed. Such a three-wheeled scooter can be used stably at a relatively low speed by an infant, a female or a person whose physical condition is not normal.

However, such a conventional scooter has been shown to cause some problems due to being fixed to the two-wheeled or three-wheeled type. First, since each scooter is fixed in a two-wheeled or three-wheeled type, there is a problem that the range of choice according to the use is limited.

In addition, users need to purchase both a two-wheeled scooter and a three-wheeled scooter if necessary, there is a problem that is not excessively expensive and easy to store.

Accordingly, the present invention has been invented to solve the above problems, and an object of the present invention is to provide a variable wheel scooter that can be driven by a driver or a user arbitrarily selected by two or three wheels.

Another object of the present invention is to provide a wheel variable scooter that is easy to disassemble and assemble the wheel when selecting two and three wheels.

Still another object of the present invention is to provide a variable wheel scooter that can improve efficiency by selectively using a power source according to the number of wheels.

Such objects are provided in a variable wheel scooter that can be assembled and used in two or three wheels as needed, including: a frame in which a driver or a passenger can ride and seats installed; A steering shaft rotatably installed in front of the frame, a front wheel rotatably installed at a lower end thereof, and a steering shaft provided with a handle, a brake, a motor operating lever, and an engine operating grip that can be operated by a driver by a driver at the upper end thereof; A mounting frame integrally provided at the rear of the frame, having a two-wheel center mounting portion formed at a center thereof, a first wheel mounting portion having two wheels formed at one side thereof, and a second wheel mounting portion having three three wheels formed at the other side thereof; And a rear wheel, which is movably mounted to the mounting frame and has a rear wheel, and is detachably fixed to the center mounting portion of the mounting frame when assembling two wheels, and is moved and fixed to the first side mounting part when assembling three wheels. And a three-wheel exclusive drive that is releasably fixed to the second side mounting portion of the mounting frame only when the three-wheel assembly is assembled, and which is addressed to the two-wheel-only driving device. .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, well-known components such as well-known power line, breaker, engine wire cable, electric start, recoil start, start switch, etc. have been omitted for clarity. It will be appreciated that this will not affect the scope of rights of the individual.

First, referring to FIGS. 3 and 4, the wheel variable scooter according to the present invention basically includes a frame 10 through which a driver or a passenger can board. The frame 10 may have various shapes, and seats 12 which are adjustable up and down and left and right at appropriate positions are installed. A battery B for supplying power to a driving motor described in detail below is installed below the frame 10, and a controller C for controlling the driving motor is provided. The battery B is preferably formed rechargeable.

A steering shaft 14 is installed at the front of the frame 10 so as to be rotatable from side to side. The steering shaft 14 is foldable by the folding pin 16. The front wheel 18 is rotatably installed at the lower end of the steering shaft 14. The front wheels 18 are installed to be buffered by the boot 20. Of course, the steering shaft 14 is provided with a handle (22; 24) that the driver can grip with each hand at the top of the steering shaft 14, each of the handle (22; 24) brake lever 26 that the driver can operate by hand And 28). In addition, the handle 24 on one side is provided with an engine operating grip 30 for controlling the engine to be described later, and a motor operating lever 32 for controlling the motor to be described later. Of course, at the proper position of the steering shaft 14 is provided with a lamp 34 to provide illumination during night driving.

In particular, the rear of the frame 10 of the variable wheel scooter according to the present invention, the mounting frame 40 is integrally installed in the transverse direction so that the drive device described later can be detachably mounted. Mounting frame 40 is preferably formed in a hollow having a rectangular or square cross section.

In the center of the mounting frame 40 is provided with a central mounting portion 42 which is releasably mounted two-wheel drive device to be described later. The central mounting portion 42 is provided with a marking portion 44 representing an accurate mounting position so that the driving device can be releasably mounted at the correct position, and mounting holes 46 formed on both sides of the marking portion.

And, one side of the mounting frame 40 is provided with a first side mounting portion 48 that can be selectively mounted two-wheel drive device to be described later. The first side mounting portion 48 is formed with a mark portion 50 indicating the correct mounting position and a mounting hole 52 formed on both sides of the mark portion so that the driving device can be detachably mounted at the correct position. .

In addition, the other side of the mounting frame 40 is provided with a second side mounting portion 54 that can be selectively mounted three-wheel drive device. The second side mounting portion 54 is provided with a mark portion 56 indicating the correct mounting position and a mounting hole 58 formed on both sides of the mark portion so that the driving device can be detachably mounted at the correct position. .

The two-wheel drive device 60, which is selectively detachably mounted to an appropriate position of the mounting frame 40, that is, each mounting portion, includes a mounting end 62 that is inserted into the mounting frame 40 and is movable. The mounting end 62 is perforated with a through hole 64 selectively communicating with each of the mounting holes 46 and 52 drilled into the central mounting portion 42 or the first side mounting portion 48. Of course, each of the mounting holes 46 and 52 and the through-hole 64 is fixed to the mounting bolt 66 in the state in communication with each other is released.

The mounting end 62 is integrally provided with a support frame 68 extending therefrom. The front portion of the support frame 68 is mounted with a drive motor 70 connected to the motor operating lever 32 to generate power. Of course, the battery B and the controller C described above are connected to the driving motor 70. In addition, the drive motor 70 has a drive shaft 72, the sprocket 74 is fixed to the end of the drive shaft 72. Of course, a part of the chain 76 is rotatably inserted into the sprocket 74.

In addition, the hub 78 is installed below the proper position of the support frame 68. The hub 78 is provided with a driven shaft 80 extending to both sides rotatably. A driven sprocket 82 is provided at a proper position of the driven shaft 80, that is, at a point located in line with the sprocket 74 provided on the drive shaft 72. Of course, the driven sprockets 82 are connected by the chain 76 so that the sprockets 74 are rotated and rotated at the same time. One side of the driven sprocket 82 is connected to the brake lever 26 and a brake band 84 for braking the rotation of the sprocket by its operation is provided.

On the other hand, the rear wheel 86 is mounted at one end of the driven shaft 80. Of course, the rear wheels 86 are releasably mounted for repair or replacement. The other end of the driven shaft 80 is formed with a mounting groove 88 to which the driven shaft of the three-wheel drive device described below is releasably connected. The two-wheel drive 60 may be shielded by a cover shown in dashed lines when in use or when mounted (FIG. 3).

As shown in FIGS. 5 and 6, the three-wheel-only driving device 90 is selectively detachably mounted to the second side mounting portion 54 of the mounting frame 40. The three-wheel drive unit 90 includes a mounting end 92 which is inserted into the mounting frame 40 and is movable. The mounting end 92 is perforated with a through hole 94 that selectively communicates with each of the mounting holes 58 drilled in the first side mounting portion 54. Of course, the mounting bolt (96) in the state in communication with the mounting hole 58 and the through hole (94) is releasably locked.

The mounting end 92 is integrally provided with a support frame 98 extending therefrom. The front part of the support frame 98 is equipped with an engine 100 connected to the engine operation grip 30 to generate power. The engine 100 is configured as an engine using fossil fuel that generates a relatively strong power because it is connected to the two-wheel drive device as described below to drive the wheels of the wheel simultaneously. The engine 100 is equipped with a reduction gear 102. The reduction gear 102 is preferably formed with a brake type reduction gear. The drive shaft 104 is connected to the reduction gear 102, and the pinion gear 106 is provided at the end of the drive shaft 104. Optionally, the above-described battery B is connected to the engine 100 to serve to charge the battery B during operation of the engine.

On the other hand, the differential gear set case 108 shown by the dotted line is installed below the proper position of the support frame 98. The differential gear set case 108 is provided with a ring gear 110 rotatably coupled to the pinion gear 106. The pinion gear set 112 is provided at the center of the ring gear. One end of the pinion gear set 112 is coupled to the output shaft 114, the end of which is screwed. At the other end of the output shaft, a three-wheeled exclusive wheel 116 is replaceably mounted. In addition, the other end of the pinion gear set 112 is coupled to the connecting shaft 117, the end of which is screwed. The end of the connecting shaft 117 is preferably provided with a coupling 118 that can be mounted to the mounting end 88 formed at the other end of the driven shaft of the two-wheel drive device 60 described above. Optionally, a sensing sensor 120 is installed to detect the presence of the coupling 118 at a suitable location of the mounting frame 40, ie, where the coupling 118 is present. Can be. The sensor 120 is connected to the drive motor, so that the driven shaft 80 of the two-wheel drive 60 is connected to the connection shaft 117 of the three-wheel drive 90 by the coupling 118. In the connected state serves to block the operation of the drive motor (70).

Optionally, when each drive device (60; 90) is mounted on both sides of the mounting frame (40) for use as a three-wheeled scooter, each drive device is not only firmly fixed but also can be secured to each other stably. A bumper 122 may be provided that can protect the vehicle body and the driver. The bumper 122 has a fixed end 122a having both ends inserted into the rear end openings 68a and 98a of the support frames 68 and 98 of the respective drive devices 60 and 90, respectively. It is preferable that 122a is stably fixed by the fixing bolt 124 in the state inserted into each of the openings 68a and 98a. On the other hand, the three-wheel drive device 90 may be shielded by a cover shown in dashed lines (Fig. 5).

Hereinafter, the operation and operation mode of the wheel variable scooter configured as described above will be described in detail.

First, when the scooter is basically used as a two-wheeled scooter as shown in Figure 3, the two-wheel drive unit 60 to the central mounting portion 42 of the mounting frame 40 integrally provided at the rear of the frame 10 ) Is mounted. Here, each through hole 64 formed in the mounting end 62 of the two-wheel drive device 60 communicates with each of the mounting holes 46 drilled in the central mounting portion 42, and in this state, It is to maintain a complete and stable two-wheeled scooter by deciding to release the mounting bolt 66 in the communication hole of the mounting hole 46 and the through hole 64.

In this state, when the driver is seated on the seat 12 and both hands hold the handles 22 and 24 and operate the motor operating lever 32 to operate the drive motor 70, the drive shaft 72 of the drive motor 70 is operated. At the same time as the sprocket 74 is provided at the end of the rotation) driven driven sprocket 82 connected by the chain 76 is rotated and the driven shaft 80 is rotated at the same time. As such, when the driven shaft 80 is rotated, the rear wheel 86 fixed to one end of the driven shaft is driven to rotate, thereby driving the scooter. Of course, if necessary, the driver may operate the brake lever 26 to brake or adjust the speed by using the brake band 84 provided on the sprocket 74.

On the other hand, when the same scooter is used by children, senior citizens, the disabled, or stably loaded cargo is preferably converted to a three-wheel scooter as shown in Figures 5 and 6.

That is, the driver releases the two-wheel drive device 60 from the central mounting portion 42 of the mounting frame 40 integrally provided at the rear of the frame 10. In more detail, each mounting bolt 66 fixed to the mounting end 62 of the two-wheel drive device 60 is released from the communication hole of the respective mounting hole 46 and the through hole 64. Thereafter, the two-wheel drive unit 60 is moved to one side of the frame 10. At this time, the mounting end 62 of the two-wheel drive device 60 is moved to the first side mounting portion 48 along the mounting frame 40 in a state inserted into the mounting frame 40. When the mounting end 62 is accurately positioned with respect to the marked portion 50 of the first side mounting portion 48 formed on one side, and each through hole 64 communicates with the mounting hole 52, the communication hole Fasten the mounting bolts 66 to them.

Subsequently, the driver inserts the mounting end 92 of the three-wheel drive unit 90 into the second side mounting portion 54 provided on the other side of the mounting frame 40 to accurately position the marker 56. . Thereafter, the mounting bolt 58 of each of the mounting holes 58 of the second side mounting portion 54 and each of the through holes 94 of the mounting end 92 of the three-wheel drive device 90 communicate with each other. 96 is completed to complete the basic mounting of the three-wheel exclusive drive unit 90. At this time, the mounting groove 88 formed at the other end of the driven shaft of the two-wheel drive device 60 is inserted into the coupling 118 provided at the end of the connecting shaft 117 of the three-wheel drive device 90. The two-wheel-only drive device 60 and the three-wheel drive device 90 is to be operatively connected to each other. In addition, when the connection between the driving devices through the coupling 118 is sensed by the sensor 120 and transferred to the driving motor 70, the operation of the driving motor 70 is subsequently blocked.

Optionally, each stationary end 122a of the bumper 122 is supported by each drive 60; 90 to stably hold each drive 60; 90 and to protect the vehicle body and the driver in the event of a crash. After inserting into the rear end openings 68a and 98a of the frames 68 and 98, respectively, the fixing bolts 124 are fixed to complete the assembly of a stable and robust three-wheeled scooter.

In this state, when the driver is seated on the seat 12, the handles 22 and 24 are held with both hands, and the engine operating grip 30 is operated to operate the engine 100, the reduction gear 102 is operated and the The pinion gear 106 provided on the drive shaft 104 connected to the reduction gear 102 is rotationally driven. When the pinion gear 106 is rotated, the ring gear 110 installed in the differential gear set case 108 coupled thereto is rotated.

When the ring gear 110 is rotated, the pinion gear set 112 is rotated, and the output shaft 114 which is screwed to one side of the pinion gear set 112 is rotated so that the three-wheel-only wheel fixed to the other end of the output shaft is rotated. 116 is rotated. At the same time, the connecting shaft 117 which is screwed to the other side of the pinion gear set 112 is rotated, and the driven shaft of the two-wheel drive device 60 connected to the connecting shaft 117 by the coupling 118 is the same. By rotating, the two-wheel exclusive wheel 86 is rotated simultaneously with the three-wheel exclusive wheel 116 to drive the scooter.

Of course, if necessary, the driver operates the brake lever 28 to brake or increase the speed at the other end of the driven shaft 80 by using the brake band 84 provided on the driven sprocket 74 and the reduction gear 102. I can regulate it.

On the other hand, if you want to convert to use as a two-wheel scooter again in the reverse order described in the above-described way, the three-wheel-only drive unit 90 is dismantled from the mounting frame 40 and the two-wheel drive unit 60, then two wheels By moving the dedicated drive device 60 to the center mounting part 42 of the mounting frame 40 and fixing it, it can be used again as a two-wheeled scooter.

Accordingly, the driver or the user can easily transform and use the two-wheel or three-wheel according to the use purpose or purpose.

As a result, according to the wheel variable scooter according to the present invention, a driver or a user can arbitrarily select and use two wheels or three wheels, thereby improving convenience and applicability.

In addition, when the two wheels or three wheels are selected, the wheels are easily disassembled and assembled, thereby improving workability.

In addition, it is possible to selectively use the power generation source in accordance with the selection of the wheel has the advantage of improving the efficiency and economics.

While a preferred embodiment according to the present invention has been described above, it will be understood by those skilled in the art that various modifications and changes can be made without departing from the scope of the appended claims.

1 is a perspective view showing a typical two-wheeled scooter.

2 is a perspective view showing a typical three-wheeled scooter.

Figure 3 is a view showing a variable wheel scooter according to the invention, a perspective view showing a two-wheeled scooter.

Figure 4 is an exploded perspective view of a two-wheel drive exclusively applied to the two-wheel scooter of Figure 3;

5 is a view showing a variable wheel scooter according to the invention, a perspective view showing a three-wheeled scooter state.

Figure 6 is an exploded perspective view of a three wheel drive system applied to the three-wheel scooter of Figure 5;

♣ Explanation of symbols for the main parts of the drawing ♣

10: frame 14: steering shaft

18: Front wheel 32: Motor control lever

40: mounting frame 42: center mounting portion

48: first side mounting portion 54: second side mounting portion

60: two-wheel drive 70: drive motor

90: 3-wheel drive 100: engine

122: bumper

Claims (10)

According to the wheel variable scooter that can be used by assembling two or three wheels, A frame in which a driver or a passenger can board and seats are installed; A steering shaft rotatably installed at the front of the frame, a front wheel rotatably installed at a lower end thereof, and a steering shaft having a handle, a brake lever, a motor operating lever, and an engine operating grip disposed at an upper end thereof by a driver; A mounting frame integrally provided at the rear of the frame, having a two-wheel central mounting portion at a center thereof, a first two-wheel mounting portion at one side thereof, and a second three-wheel mounting portion at the other side thereof; And It is detachably mounted to the mounting frame and has a rear wheel, and a two-wheel-only driving device that is fixed to the center mounting portion of the mounting frame to be releasable when assembling two wheels and moved to the first side mounting part when assembling three wheels. And a three-wheel-only driving device which is releasably fixed to the second side mounting portion of the mounting frame only when the three-wheel assembly is performed, and which is addressed to the two-wheel-only driving device. According to claim 1, wherein the mounting frame is formed of a rectangular hollow frame, wherein each of the mounting portion marked portion indicating the position where the respective drive device is releasably mounted in the correct position, and both sides of the mark portion Wheel-mounted scooter characterized in that the perforated mounting holes formed in the perforated. According to claim 1 or 2, wherein the two-wheel only drive device A mounting end movably inserted into the mounting frame and having a through hole formed in a mounting hole respectively formed in the central mounting portion or one mounting portion, and fixed by a mounting bolt; A support frame integrally formed with and extending from the mounting end; A drive motor installed at a front portion of the support frame and connected to a motor operating lever, the drive motor having a drive shaft having a sprocket at an end thereof; And A variable wheel scooter, characterized in that formed on the rear lower portion of the support frame, a driven sprocket is connected to the sprocket of the drive shaft by a chain, and comprises a hub having a driven shaft fixed to the rear wheel at one end. . 4. The variable wheel scooter of claim 3, wherein a brake band operated by the brake lever is installed on one side of the driven sprocket. 4. The variable wheel scooter of claim 3, wherein the other end of the driven shaft is provided with a mounting end to which the three-wheel drive unit described later is connected. According to claim 1 or 2, wherein the three-wheel only drive device A mounting end movably inserted into the mounting frame and having a through hole communicating with mounting holes respectively formed in the two side mounting portions, and determined by a mounting bolt; A support frame integrally formed with and extending from the mounting end; An engine connected to an engine operating lever to generate power in the front portion of the support frame; A reduction gear operably mounted to the engine and having a drive shaft having a pinion gear formed at an end thereof; And A ring gear mounted on the rear lower portion of the support frame and rotatably coupled to the pinion gear, a pinion gear set provided at the center of the ring gear and interlocked, and an end screwed to one side of the pinion gear set. And a differential gear set case having an output shaft on which the rear wheel is fixed at the other end and a connecting shaft screwed to the other side of the pinion gear set and connected to the two-wheel drive unit. 7. The wheel type variable type wheel according to claim 6, wherein an end portion of the connection shaft is provided with a coupling connected to a mounting end formed at the other end of the driven shaft of the two-wheel drive device fixed to one mounting portion of the mounting frame. scooter. 8. The variable wheel scooter of claim 7, wherein the mounting frame is provided with a sensor for detecting the presence or absence of the coupling to confirm that the three-wheel drive is connected to the two-wheel drive. The method of claim 6, further comprising a bumper releasably mounted to the rear end of the support frame of each drive device when each drive device is mounted on both sides of the mounting frame for use as the three-wheel scooter. Wheel adjustable scooter characterized in that. The variable wheel scooter of claim 6, wherein a battery for supplying power to the motor is connected to the engine, and the battery is configured to be charged during operation of the engine.