JP2003112685A - Bycycle with auxiliary motor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To develop a new bicycle with an auxiliary motor reduced in size and weight to be easily carried not in traveling by miniaturizing a driving device for traveling, easily operable by any one and safely operable by even a beginner. SOLUTION: A handle shaft 1 for journaling a front wheel 6 is mounted at a front end of a pipe-shaped main body 8. A rear wheel 11 is mounted at a rear end of the main body 8 via a shock absorber 18. An electric motor 20 for transmitting power to either one of the front wheel 6 and the rear wheel 11 is provided on the main body 8. A saddle 30 for an operator is provided on the main body 8. A step bar 10 for a foot rest extended to a side direction is foldably provided on a front side of the main body 8.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a two-wheeled vehicle with an auxiliary electric motor.

[0002]

2. Description of the Related Art Conventionally, it is generally known that a two-wheeled vehicle having front wheels which can be operated by a steering wheel and which can be steered in a standing posture is provided with a drive unit so as to be capable of self-propelling.

[0003]

By the way, since these two-wheeled vehicles equipped with a drive device are designed to run by themselves from a stopped state, a drive device of relatively large horsepower is used and an internal combustion engine is used as a drive source. When using, the clutch and the like are indispensable, so there is a problem that the drive device becomes large in size.

Further, when an electric motor is used as a drive source, a large capacity battery is required, and even if the electric motor itself can be miniaturized, a large battery must be used, and the total weight is very large. There was a problem of being bulky.

Therefore, in any of the above cases, the entire motorcycle becomes large in size or heavy in weight, so that there is a problem that it cannot be carried easily except for traveling, for example, it cannot be easily handled such as being stored in a trunk of a passenger car. It was

The present invention solves the above problems, downsizes the drive unit for traveling, and makes it compact and lightweight so that it can be easily carried outside of traveling. At the same time, it is easy for anyone to operate and safe for beginners. The challenge was to develop a new two-wheeled vehicle with an auxiliary electric motor that can be steered.

[0007]

In order to solve the above-mentioned problems, a two-wheeled vehicle with an auxiliary electric motor according to claim 1 is provided with a handle shaft for pivotally supporting a front wheel attached to a front end of a pipe-shaped main body, and to a rear end of the main body. Rear wheels are attached via a shock absorber, and an electric motor for transmitting power to one of the front and rear wheels is provided in the main body. The main body is provided with a saddle for an operator and On the front side of the main body, a step bar for laterally projecting is provided foldably.

In this two-wheeled vehicle with an auxiliary electric motor, since the main body of the vehicle body has a pipe shape, the width of the vehicle body is extremely small, and the width of the handle can be reduced to reduce the overall width.

Further, since the operator sitting on the saddle can operate by placing his / her feet on the foot-mounted step bar which extends laterally on the front side of the main body, the maneuvering posture is stable during self-propelled operation by the electric motor.

A two-wheeled vehicle with an auxiliary electric motor according to a second aspect of the present invention is the two-wheeled vehicle with an auxiliary electric motor according to the first aspect, wherein the handle is extendable. Therefore, when carrying the vehicle body, the handle can be stored in a short length, and the vehicle body can be made smaller accordingly.

A two-wheeled vehicle with an auxiliary electric motor according to a third aspect is the two-wheeled vehicle with an auxiliary electric motor according to the first or second aspect, in which a pipe-shaped main body is extendable / contractible in the longitudinal direction.

Therefore, the total length of the vehicle body can be shortened and can be reduced during transportation. In particular, when combined with the contracting structure of the handle according to claim 2, the size can be further reduced. Further, in this case, the height of the vehicle body and the steering wheel can be adjusted by expansion and contraction according to the physique of the operator.

A two-wheeled vehicle with an auxiliary electric motor according to a fourth aspect is the two-wheeled vehicle with an auxiliary electric motor according to the first, second or third aspect, in which the saddle provided on the main body is erected on the front side in the traveling direction of the vehicle body. And a second support shaft that is erected from the upper part of the first support shaft via a bracket to the rear side in the traveling direction of the vehicle body, and is supported by the upper end of the second support shaft. The space between the main body and the main body is used as a loading space for luggage and the like.

The space under the saddle can be effectively used, and in particular, luggage can be easily loaded. Therefore, the carrying capacity of the motorcycle with the auxiliary electric motor is added, and the usefulness is increased. Also,
Since the saddle is supported by the first and second support shafts which are offset from each other by the bracket, cushioning due to the flexural elasticity of the support shaft and the bracket can be expected, and the riding comfort is improved in cooperation with the cushioning device. .

A two-wheeled vehicle with an auxiliary electric motor according to a fifth aspect is the two-wheeled vehicle with an auxiliary electric motor according to the fourth aspect, in which a power supply battery is mounted between the bracket and the second support shaft and the vehicle body.

That is, the power supply battery is loaded in the loading space of claim 4. As a result, the power battery is mounted on the lower part of the saddle, and the size of the entire vehicle body can be further reduced.

According to a sixth aspect of the present invention, there is provided a two-wheeled vehicle with an auxiliary electric motor, wherein the electric motor in the two-wheeled vehicle with an auxiliary electric motor according to any one of the first to fifth aspects is based on detection information of the rotational speed of one of the front and rear wheels. Otherwise, it is driven through a switch circuit to which power is not supplied.

Therefore, the electric motor is not driven unless the rotational speed of the wheels is above a certain level, that is, the speed of the two-wheeled vehicle is above a certain level. During that time, the vehicle body is pushed or the ground is kicked while straddling the saddle. Therefore, even a person who is not familiar with automatic driving can safely operate the vehicle.

Further, when the speed becomes a certain level or more and the power is turned on and the electric motor starts to be driven, automatic traveling is possible,
It is possible to drive without effort. Furthermore, since the electric motor is used as an auxiliary power source and is not used as an automatic driving force source that starts self-propelled from a stopped state, a battery with a large capacity is unnecessary, and a small and lightweight battery is not used. As a result, the total weight of the motorcycle with the auxiliary electric motor is considerably reduced.

According to a seventh aspect of the present invention, there is provided a two-wheeled vehicle with an auxiliary electric motor, wherein the switch circuit of the two-wheeled vehicle with an auxiliary electric motor is provided with a timer for turning off the power when a predetermined time has elapsed after the power is supplied. After the power is cut off by the timer, the switch circuit is reset, and again, based on the detection information of the rotational speed of the rear wheels of the wheel, the power is not supplied unless the rotational speed above a certain level is detected. .

In this two-wheeled vehicle with an auxiliary electric motor, even after the electric motor is driven based on the detection information of the rotational speed above a certain level and the automatic running is started, a certain period of time, for example, 20
If you keep running for about a second, the power is automatically turned off and the circuit is reset to prevent runaway.

When the traveling is further continued, the motor is driven again after the power is cut off by the timer, the speed is increased by the kicking operation, and the detection circuit for starting the traveling is passed through.

Therefore, even if the speed unintentionally rises too much and the operator is confused in the operation, all the power sources will be automatically shut off after a certain period of time. You can drive to.

A two-wheeled vehicle with an auxiliary electric motor according to claim 8 is the two-wheeled vehicle with an auxiliary electric motor according to any one of claims 6 to 7, wherein when the power is cut off by a timer after a certain period of time and the switch circuit is reset, the rear wheel In the case of detecting the rotation speed, a timer is provided so that the detection of the rotation speed becomes effective only after a lapse of a certain time after the power is cut off.

When the speed of the electric motor is once shut off and the power is turned on again for safe driving, the power is not turned on no matter how the speed condition is satisfied until a certain time has elapsed. It was done.

For example, on a long downhill, there is a case where the vehicle speed hardly decreases due to coasting even if the power is cut off. In such a case, even if the speed is checked after the power is cut off, the speed condition is immediately satisfied and the power is turned on, so that the power may be substantially continuously supplied. This is because the significance of shutting off the power source for safety is lost, and this is to prevent this.

According to a ninth aspect of the present invention, there is provided a two-wheeled vehicle with an auxiliary electric motor according to any one of the first to eighth aspects, wherein a brake device operated by a brake lever provided on a handle comes into contact with the wheel from a radially outer periphery. A brake shoe, which is rotatably provided on an axis parallel to the rotation axis of the wheel, and is pressed against the outer peripheral surface of the wheel so as to be caught by rotating in the direction opposite to the rotation direction of the wheel. It is configured to.

Therefore, in the brake device for a two-wheeled vehicle with an auxiliary electric motor according to the present invention, when the brake is actuated, the brake shoe slides in the direction that bites into the wheel, so that the braking effect is improved. The wheel in this claim refers to both or one of the front wheel and the rear wheel of the two-wheeled vehicle with the auxiliary electric motor.

A two-wheeled vehicle with an auxiliary electric motor according to a tenth aspect is the two-wheeled vehicle with an auxiliary electric motor according to any one of the first to ninth aspects, in which a power switch is interlocked with a brake lever provided on a handle, and when the brake lever is operated, the power switch is also turned off. It is designed to work together so that

Therefore, when the brake is operated, the electric power of the electric motor is automatically cut off, so that runaway can be prevented and safe braking can be performed. A two-wheeled vehicle with an auxiliary electric motor according to an eleventh aspect is the two-wheeled vehicle with an auxiliary electric motor according to any one of the first to tenth aspects, wherein regenerative braking is performed by an electric motor.

Therefore, if the electric motor is reversely driven by the drive wheels after the power supply of the electric motor is cut off so that the electric motor can generate electric power, this electric power can be stored in the storage battery. Thus, energy can be effectively used, and regenerative braking is performed by the drive resistance at this time.

Therefore, in addition to the mechanical friction of the brake, the speed is weakened even by regenerative braking, so that safer driving is possible. Particularly, when traveling on a long downhill, the generated electric power can be stored without waste.

[0033]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a two-wheeled vehicle with an auxiliary electric motor according to an embodiment of the present invention will be described. In FIG. 1, reference numeral 1 denotes a handle shaft, and the handle shaft 1 in the illustrated example has a telescopic stretchable structure, and can be fixed by winding at a desired stretch position by a tightening band member 2. A T-shaped handlebar 3 is attached to the upper end of the handlebar 1, and a brake lever 4 is attached along the handlebar 3. As shown in FIG. 5, the handlebar 3 on the side opposite to the position where the brake lever 4 is attached is provided with a switch lever 4a for driving power of the electric motor 20.

A front wheel 6 is pivotally supported on a fork portion 5 formed at the lower end of the handle shaft 1. The handle shaft 1 is supported by a head pipe 7 so as to be rotatable around the shaft. The head pipe 7 is attached to the front end portion of a pipe-shaped main body 8 by welding or the like.

The pipe-shaped main body 8 is a metal pipe having a sufficient thickness and diameter so as to withstand the weight of the operator and the load applied during traveling. Further, on the pipe-shaped main body 8, steps 10 and 10 for mounting feet are foldably attached as shown in FIGS. 2 to 4 so as to project to both sides of the pipe-shaped main body 8.

Further, the pipe-shaped main body 8 may be a single pipe, and may be telescopically expandable / contractible as shown in FIGS. In this case, the pipe-shaped body 8 is
The tightening band member 9 is capable of being wound and fixed at an arbitrary expansion / contraction position.

An arm 12 is provided on the rear end side of the pipe-shaped main body 8.
One end of the rear wheel 11 is pivotally supported, and the other end of the arm 12 has a rear wheel 11
Is pivotally supported. A compression spring 13 is compression-inserted between the arm 12 and the main body 8 to buffer the rear wheel 11.

In the arm 12, as shown in FIG. 7, one end of each pair of arm members 14, 14 is pivotally supported by the bearing 15 of the main body 8, and the rear wheel 11 is provided at the other end.
The shaft 16 is supported.

Then, the pair of arm members 14 forming a pair
A erection plate 17 is provided at an intermediate portion of the, and a telescope member 18 is erected between the erection plate 17 and the main body 8 through the inside of the compression spring 13. It is guided so that the compression direction is not displaced.

Further, the arm 12 is provided with a motor 20 for driving the rear wheel 11 via the support plate 19. As shown in FIG. 5, a drive pulley 21 is provided on the drive rotation shaft of the motor 20, and a driven pulley 2 provided on the shaft 16 of the rear wheel.
A transmission belt 23 is wound between the two. In addition,
Reference numeral 24 in the figure denotes an idler pulley.

A stand 25 supporting the entire vehicle body is foldably provided on the side surface of the arm 12 opposite to the side where the drive pulley 21 is provided. On the rear side of the main body 8, a first support shaft 26 is erected by a mounting bracket 27. The first support shaft 26 is composed of two support rods 26a, 26a supported by mounting fittings 27 mounted with the main body 8 sandwiched therebetween as shown in FIG. A bracket 28 extending substantially horizontally in a cantilever shape is provided at the upper end portion of the main body 26 on the rear side of the main body, and a second support shaft 29 is erected from the end of the bracket 28 so as to project further upward. The structure is such that the saddle 30 is supported on the second support shaft 29.

With this structure, the saddle 3
A space is formed below the second support shaft 29 that supports 0, so that luggage and the like can be loaded. Further, cushioning due to bending elasticity of the first support shaft 26 and the bracket 28 as indicated by arrows L and R can be expected.

As shown in FIGS. 7 and 8, the bracket 28 has a first end engaged with the two support rods 26a, 26a and a second end engaged with the single second support shaft 29 in plan view. Y
A fitting hole 29a for fitting the first support shaft 26 and the second support shaft 29 is formed at the other end of each of them.

Needless to say, in the above, the saddle 30 may be directly attached to the upper end portion of the first support shaft 26. In FIG. 1 and FIG. 2, reference numeral 31 denotes a loading platform fixed on the main body 8 directly below the second support shaft 29. In the illustrated example, the power supply battery 33 is loaded, but as shown in FIG. The battery 33 may be suspended and supported on the side surface of the vehicle body, and the luggage may be loaded on the luggage carrier 31.
In the illustrated example, the cargo bed 31 is a basket.

As shown in FIGS. 1 and 2, a band brake 32 is provided on the installation plate 17 (FIG. 7) of the arm 12 as a brake device. This band brake 32
Is the rear wheel 11 from the brake lever 4 via the cable 34.
A hub (not shown) provided on the shaft 16 is wound to tighten the brake.

The brake may have a structure other than this, for example, a structure in which a rim of a tire is sandwiched from both sides, a disc brake, or the like. FIG. 9 shows a structure using a brake shoe as a brake.
9A shows one provided on the rear wheel 11, and FIG. 9B shows one provided on the front wheel 6.

In FIG. 9, brake shoes 36 are provided on the outer circumferences of the wheels 6 and 11, respectively. The brake shoe 36 is operated by the brake lever 4 via the cable 34, and is provided at the tip of an arm 36a rotatable around a shaft 37 parallel to the shaft 16 of the rear wheel 11 as shown in the drawing. It is configured so as to come into contact with the outer periphery of the rear wheel 11 by rotating in the direction opposite to the rotating direction of.

When the brake shoe 36 contacts the rear wheel 11, as shown by the arrow, the brake shoe 36 contacts the rear wheel 11.
Since it tries to displace in the direction that it bites in, the braking effect is very good.

Next, in FIGS. 1 and 2, reference numeral 34 designates a casing accommodating the control circuit of the electric motor 20,
It is controlled by a control circuit (FIG. 10) housed inside.

FIG. 10 shows an example of this control circuit. The power of the motor 20 is supplied from the battery 33 through the fuse 38, the main switch 39 through the connection / disconnection switch 43, and the relay switch 40. The thyristor 41 is operated when the electromotive force of 20 becomes a voltage above a certain level.

The resistor 42 in the circuit diagram is for activating the thyristor 41 when the electromotive force of the electric motor 20 becomes a voltage above a certain level. The resistor 42 is an appropriate resistor according to the speed at the time of starting the electric motor 20. The value one is used.

The connection / disconnection switch 43 is connected / disconnected by the switch lever 4a.
(FIG. 1), the operating power source is cut off and the relay switch 40 is reset when the brake is operated by the electric motor 20 during automatic traveling.

The switch 43 may be arranged in series with a switch (not shown) that is connected and disconnected by the switch lever 4a and a switch (the same) that is disconnected by the brake lever 4.

The circuit surrounded by a dotted line in FIG. 12 is a circuit of a pilot lamp for checking the voltage of the battery, which is cut off by the changeover switch 44 when the vehicle is running and is connected by being operated when the vehicle is stopped. Has been

Also, the part surrounded by the two-dot chain line shows the circuit of the pilot lamp for displaying the voltage, and according to the height of the voltage,
The color of the lighting light is changed. Since the electric motor 20 and the battery 33 may be used for auxiliary power, a small electric motor and a small-capacity battery are sufficient, and the total weight is about 15 to 20 kg, which is a transportable weight.

Although not shown in the circuit diagram, a timer is provided in the power supply circuit to operate at the same time as the driving of the electric motor 19 is started, and the power supply is turned on after a lapse of a certain time, for example, about 15 to 30 seconds. It may be turned off, the circuit may be reset, and the automatic traveling may not be performed unless the starting operation is performed from the beginning again.

Further, it is possible to prevent the automatic running even if the speed satisfies the condition, unless a certain time elapses, for example, 4 to 5 seconds after the power is cut off by the timer.

The structure of the control circuit is designed with safety in mind, but if it is not necessary, there is no running, that is, the power switch is turned on in a stopped state to enable automatic running directly or after running. If you choose to drive automatically, set the timer above
The time may be longer than about 5 seconds to 30 seconds, for example, a long time such as ten and a few minutes, and a control circuit in which the power is not turned off by such a timer may be used.

Next, the operation of the two-wheeled vehicle with the auxiliary electric motor will be described. First, as shown in FIG. 1, the handle shaft 1 and the pipe-shaped main body 8 are extended from the contracted state shown in FIG. 2 according to the physique of the operator and fixed by the tightening band members 2 and 9, and steps 10 and 10 are performed. Overhang.

When traveling, turn on the main switch 39, hold the handlebar 3 and push the vehicle body,
Alternatively, straddle the saddle 30 and kick the ground with both feet to start traveling and increase the speed.

When the speed reaches a certain level, the foot kicking on the ground is placed on steps 10 and 10 and the switch lever 4a is gripped, and the connection / disconnection switch 43 is brought into contact. At this time, the electric motor 20 is driven to rotate by the rear wheel 11, and the electric motor 2
An electromotive force is generated by the rotation of a zero rotor (not shown).

This electromotive force is immediately supplied to the thyristor 41 through the resistor 42, and the thyristor 41 is activated when the rotational speed of the rear wheel 11 is above a certain level and the electromotive force is above a certain level, and at the same time the relay switch 40 is activated. Then, the power is turned on and the electric motor 20 is supplied with power.

At this moment, the electric motor 20 changes to a drive source and starts driving the rear wheels 11 via the belt 23. Therefore, the electric motor 20 can automatically drive the vehicle if the speed is higher than a certain speed by the kicking motion.

Next, when the brake lever 4 is pulled and the brake is applied, the speed is weakened by the band brake 32 and, at the same time, the connection / disconnection switch 43 is activated to disconnect the power supply circuit of the electric motor 20. At the same time relay switch 40
Since the power supply to the thyristor 41 is also cut off, the thyristor 41 is reset.

Therefore, the electric motor 20 does not drive the rear wheel 11, and the electric motor 20 is rotated in the opposite direction from the rear wheel 11 via the contact roller 14 or the transmission belt 43, which causes traveling resistance and further reduces traveling speed.

Therefore, in addition to the braking force by the band brake 32, the braking force by the rotation resistance by the electric motor 20 acts on the rear wheel 11. Then, when the vehicle normally travels again, the brake lever 4 is released.

As a result, the cutoff switch element 25 stops its cutoff function and the power supply circuit is restored, but the thyristor 4
Since 1 is in the reset state, whether or not the vehicle is self-propelled by the electromotive force of the electric motor 20 driven and rotated by the mechanical connection with the rear wheel 11 is similar to the case of the first running. It is checked by the action of the thyristor 41.

When the thyristor 41 is turned on, the relay switch 40 operates and the original power supply is performed. On the other hand, when the electromotive force is less than the predetermined electromotive force, the relay switch 40 does not work and the electric motor 20 does not rotate.

Therefore, the speed is increased by performing acceleration such as kicking the ground with the foot. As described above, since the speed check by the electric motor 20 is always controlled to the safe side in the stopping direction, there is an effect that anyone can easily operate the vehicle safely without special proficiency.

When a timer circuit is provided in the power supply circuit, the power is automatically cut off after a certain period of time even if the driving of the electric motor 20 is started. Therefore, after that, the foot is kicked again on the ground to increase the speed, and the driving operation described above is repeated.

In this case, unexpected runaway due to the power being kept on can be prevented, and safer operation can be performed. In addition, if you disable automatic driving until a certain time has elapsed after the power was cut off by the timer, if the high speed state was still maintained after the power was turned off by the timer, It is possible to prevent the automatic running from being substantially continued when the power is turned on as it is, and the safety is further improved. For example, runaway or the like during continuous running on a long downhill can be effectively prevented.

In the above embodiment, a circuit for rectifying regenerative electric power to direct current to the storage battery side is provided for the disconnecting switch 43 provided for the brake lever 4 to shut off the power supply to the electric motor 20. At the same time, if a switch function for turning on the circuit of regenerative electromotive force is also provided, the electromotive force is supplied to the storage battery side each time the flakes are applied, so that energy can be effectively used.

In this case, when going down a long slope, the regenerated electric power can be effectively used and the braking force is generated along with the power generation, so that there is an effect that the driver can drive safely. Although the case where the rear wheels are mainly driven as the wheels driven by the electric motor 20 has been described, the electric motor 20 may be provided in the head pipe 7 and the front wheels may be the driving wheels.

[0074]

Since the two-wheeled vehicle with the auxiliary electric motor according to the present invention is constructed as described above, according to the construction of claim 1, the vehicle body is formed into a pipe-shaped narrow width and the steps are also folded. Because it is small, it can be stored in a small space and can be stored in the trunk of a passenger car without taking up space during storage and transportation. Also, because the structure is simple, the total weight is light, and there is an effect that it can be easily transported other than when traveling.

According to the constitutions of claims 2 to 3, since the vehicle body can be contracted to a small size, it does not occupy a storage space when not in use, and can be easily loaded especially on the trunk of a passenger car, etc. Can be done easily.

According to the constructions of claims 4 and 5, since the space immediately below the saddle can be used as a luggage carrier, luggage can be loaded during traveling, and a power battery for an electric motor can be mounted. This has the effect of allowing luggage to be transported with a small vehicle body.

According to the sixth aspect of the invention, the running can be started by pushing or kicking while straddling the saddle, and when the speed becomes a certain speed or higher, it can be switched to self-propelled by power, so It can be operated easily and safely by those who do not have it. Further, since the electric motor and its power source are also intended for auxiliary use, they can be small and lightweight, and the weight of the entire vehicle body can be reduced.

According to the structure of claim 7, even after the automatic running is started by the electric motor, if the running is continued for a certain time, the power is automatically turned off, so that the runaway is prevented and the safety is secured.

Therefore, even if the driver's speed is unintentionally increased too much and the operator is confused in the operation, the vehicle can travel safely. According to the structure of claim 8, after the power is cut off by the timer as described above, the power is not turned on no matter how the speed condition is satisfied until a certain period of time elapses. Even if the power supply is cut off, the vehicle can travel safely even when the vehicle speed hardly decreases due to coasting.

According to the structure of claim 9, the braking effect becomes very good. According to the structure of claim 10, the driving power source is always cut off when the brake is operated, so that a dangerous situation where the driving is continued despite the braking is surely prevented, and safe driving can be performed.

According to the eleventh aspect, when the brake is applied, the energy is recovered by the regenerative braking, so that the efficient operation can be performed.

[Brief description of drawings]

FIG. 1 is a side view of a motorcycle with an auxiliary electric motor according to an embodiment of the present invention in a stretched state.

FIG. 2 is a side view of a two-wheeled vehicle with an auxiliary electric motor that is an embodiment of the present invention in a contracted state.

FIG. 3 is an enlarged perspective view of a main part of the step part in an unfolded state.

FIG. 4 is an enlarged perspective view of a main part of a step part in a folded state.

5 is a side view showing a side surface opposite to that in FIG. 2. FIG.

FIG. 6 is a side view showing another configuration example.

7 is a cross-sectional view taken along the line AA of FIG.

FIG. 8 is a plan view of the bracket.

FIG. 9 is a side view of a main part of a brake with a brake shoe, (a) shows a case where a brake shoe is provided on a rear wheel,
(B) shows the case where a brake shoe is provided on the front wheel.

FIG. 10 is a control circuit diagram of the electric motor.

[Explanation of symbols]

1 handle shaft 2 tightening band member 3 handlebar 4 brake lever 4a switch lever 20 electric motor 5 Fork part 6 front wheels 7 head pipe 8 Pipe-shaped body 9 Tightening band member 10 steps for placing feet 11 rear wheels 12 arms 13 Compression spring 21 Drive pulley 22 Driven pulley 23 Transmission Belt 25 stand 26 First support shaft 27 Mounting bracket 28 bracket 29 Second support shaft 30 saddle 33 power battery 36 Brake shoes 40 relay switch 41 Thyristor

Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B62K 19/06 B62K 19/06 21/16 21/16 B62L 1/04 B62L 1/04

Claims (11)

[Claims] 1. A handle shaft for pivotally supporting a front wheel is attached to a front end of a pipe-shaped main body, a rear wheel is attached to a rear end of the main body through a shock absorber, and either of the front and rear wheels is attached. An electric motor for transmitting power is provided in the main body,
A two-wheeled vehicle with an auxiliary electric motor in which a saddle for an operator is provided on the main body, and a step bar for mounting a foot that extends laterally on the front side of the main body is foldably provided. 2. The two-wheeled vehicle with an auxiliary electric motor according to claim 1, wherein a handle is extendable. 3. The two-wheeled vehicle with an auxiliary electric motor according to claim 1 or 2, wherein a pipe-shaped main body is capable of expanding and contracting in a longitudinal direction. 4. The two-wheeled vehicle with an auxiliary electric motor according to claim 1, 2 or 3, wherein a saddle provided on the main body is provided with a first support shaft erected on the front side in the traveling direction of the vehicle body, and the first support shaft. The space between the bracket and the second support shaft and the vehicle body is supported by the upper end of a second support shaft that is offset from the upper part to the rear side in the traveling direction of the vehicle body through the bracket and is erected. A motorcycle with an auxiliary electric motor, which is said to be a loading space. 5. The two-wheeled vehicle with an auxiliary electric motor according to claim 4, wherein a power supply battery is mounted between the bracket and the second support shaft and the vehicle body. 6. A switch in which power is not supplied unless the electric motor in the two-wheeled vehicle with auxiliary electric motor according to any one of claims 1 to 5 has a rotation speed of a certain speed or more based on detection information of the rotation speed of one of the front and rear wheels. A motorcycle with an auxiliary electric motor that is driven via a circuit. 7. A switch circuit in the two-wheeled vehicle with an auxiliary electric motor according to any one of claims 1 to 6 is provided with a timer that shuts off the power supply after a lapse of a predetermined time after the power supply.
A two-wheeled vehicle with an auxiliary electric motor in which the switch circuit is reset after the power is cut off by the timer, and the power is not supplied unless the rotation speed above a certain level is detected again based on the detection information of the rotation speed of the wheel. 8. In the two-wheeled vehicle with an auxiliary electric motor according to any one of claims 6 to 7, when the power is cut off by a timer after a lapse of a certain time after the power is supplied and the switch circuit is reset, the rotational speed of the rear wheels is detected again. In this case, the two-wheeled vehicle with the auxiliary electric motor is provided with a timer so that the detection of the rotation speed becomes effective only after a lapse of a certain time after the power is cut off. 9. A two-wheeled vehicle with an auxiliary electric motor according to any one of claims 1 to 8, wherein a brake device operated by a brake lever provided on a handle comes into contact with at least a radial outer circumference of one of the front and rear wheels. The brake shoe is rotatably provided on an axis parallel to the rotation axis of the wheel, and is pressed against the wheel outer peripheral surface by rotating in the direction opposite to the rotation direction of the wheel so as to bite into each other. Two-wheeled vehicle with auxiliary electric motor. 10. A motorcycle with an auxiliary electric motor according to any one of claims 1 to 9, wherein a power switch is interlocked with a brake lever provided on a steering wheel, and the power switch is also interlocked when the brake lever is operated. Motorcycle with auxiliary electric motor. 11. The two-wheeled vehicle with an auxiliary electric motor according to claim 1, wherein regenerative braking is performed by an electric motor.