JP2002336398A - Auxiliary motor-driven unit for skater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily mount an auxiliary driving motor even in conventional skater. SOLUTION: A skater is provided with wheels 3 and 11 at the front and rear sides of a board 6 and the front wheel 3 is steered by a handle. The skater is also provided with a fixing baseboard 14 which is attached to the side surface of at least one of the front and rear wheels 3 and 11 so as to be freely attachable/detachable in parallel with the wheel 3, a mobile baseboard 18 which is supported so as to be rotatable in the circumference of an axis being in parallel with the axis of the wheel 3 in the fixing baseboard 14, a transmission roller 15 which is attached to the mobile baseboard 18, and is brought into pressure contact with the wheel 3 and the driving motor 17 which drives the transmission roller 15 via a power transmitting unit 16 and which is driven and controlled by a mounted power source battery 10 and a control circuit 20a. The fixing baseboard 14 is optionally freely mountable/dismountable to/from the side surface part of the wheel 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary electric device for a skater, and more particularly, to an auxiliary electric device for a skater which can be easily detached even with an existing skater.

[0002]

2. Description of the Related Art Conventionally, a skater having wheels on the front and rear sides of a board, the front wheels being steerable by a steering wheel, and capable of running in a standing posture is generally known.

Further, as these skaters, those with an auxiliary electric device are known. For safe driving, the auxiliary electric device is activated only when a certain speed or more is reached, and thereafter, the vehicle can be automatically driven. What has been proposed.

[0004]

In this type of skater with an auxiliary electric device, the structure for attaching the auxiliary electric device to the vehicle body and the mechanism for transmitting power are complicated. Had to be assembled together.

[0005] Therefore, when a skater with an auxiliary motor is desired, a skater with an auxiliary motor must be purchased separately from the existing skater, even if a skater of exactly the same type is possessed. However, there was a problem that it was wasteful and uneconomical.

An object of the present invention is to solve the above-mentioned problem and to make it possible to easily attach an auxiliary drive motor to an existing skater.

[0007]

According to a first aspect of the present invention, there is provided a skater auxiliary electric device having wheels on front and rear sides of a board, wherein the front wheels are steerable by a steering wheel. A fixed substrate detachably attached to at least one of the front and rear wheel side surfaces in parallel with the wheel, a movable substrate rotatably supported on the fixed substrate around an axis parallel to the axis of the wheel, A power transmission roller mounted on the movable substrate and pressed against the wheel; and a drive motor driven by a mounted power supply battery and a control circuit for driving the power transmission roller via a power transmission device. A substrate is arbitrarily detachable from the side surface of the wheel.

That is, in this skater auxiliary electric device, a fixed substrate is attached to a side portion of a wheel, for example, a bearing portion.
If a power supply battery and a control circuit are mounted at appropriate places on the vehicle body, the driving force of the driving motor can be transmitted to the wheels via a transmission roller supported by a fixed substrate, and the vehicle can run on its own.
Even with an existing skater, the auxiliary electric device can be easily retrofitted.

In the first aspect, at least one of the front and rear wheels is used when the wheel to which the skater auxiliary drive device is attached is a front wheel, a rear wheel,
This includes the case where both wheels are attached.

According to a second aspect of the present invention, there is provided the skater auxiliary driving device according to the first aspect, wherein the driving motor is supplied with power at a rotation speed equal to or higher than a predetermined value based on detection information of the rotation speed of the wheels. It is configured to be driven by a switch circuit.

In other words, in this skater auxiliary drive device, the drive motor is not driven unless the speed of the skater becomes higher than a certain speed.
Even a person who is not proficient in automatic driving can safely drive.

[0012] When the speed is equal to or higher than a certain speed and the power supply of the electric motor is turned on, the auxiliary traveling by the power becomes possible. Furthermore, since the drive motor is auxiliary power, a small and lightweight battery or drive motor is sufficient, and as a result, the overall weight of the skater with the auxiliary motor is reduced.

According to a third aspect of the present invention, there is provided a skater auxiliary electric device, wherein the switch circuit in the skater auxiliary electric device according to the second aspect is provided with a timer for shutting off the power supply after a lapse of a predetermined time after the power is supplied. After the power is shut off, the switch circuit is reset, and based on the detection information of the rotation speed of the rear wheels, power is not supplied unless a rotation speed equal to or higher than a predetermined value is detected again.

Even after the automatic running at a certain speed or more is started, if the vehicle continues to run for a certain period of time, for example, about 20 seconds, the power is automatically turned off and the circuit is reset to prevent runaway. is there.

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

Therefore, even if the vehicle is approaching a downhill, or if the speed is excessively rising unexpectedly and the operator is confused, the operation of all the power supplies is automatically performed after a certain period of time. Is cut off, so you can drive safely.

According to a fourth aspect of the present invention, there is provided the skater auxiliary driving device, wherein the power cut-off by the timer in the skater auxiliary electric device according to the third aspect is maintained for a predetermined time by the timer, and thereafter, the switch circuit is reset and restarted again. The power is not supplied unless the rotation speed equal to or higher than a certain value is detected based on the detection information of the rotation speed of the wheels.

In this case, after the power is cut off by the timer, the power cannot be restored until a certain time has elapsed. In this case, even if the power is cut off by the timer, if the speed is kept at a certain level or more, the power is turned on again to prevent the operation from being substantially continued. It is.

According to a fifth aspect of the present invention, there is provided the skater auxiliary driving device according to any one of the first to fourth aspects, wherein a power switch for arbitrarily connecting and disconnecting the power supplied to the driving motor during operation is provided on the handle shaft. It is what is done.

The drive motor in the skater auxiliary drive device of the present invention can be connected or disconnected from the power supply on condition that the speed has been detected by a certain speed or more or by the elapsed time set by a timer after the start of traveling. The connection and disconnection of the vehicle can be maintained, and the safety of traveling can be maintained.

A skater auxiliary driving device according to a sixth aspect is the skater auxiliary electric device according to any one of the first to fifth aspects, wherein regenerative braking is performed by a driving motor.

Accordingly, after the power supply of the drive motor is cut off, the drive motor is directly rotated and urged by the rear wheels, and can be used as a generator.
Therefore, the generated power is stored in the storage battery, and braking is performed by the driving resistance at this time.

Therefore, when stopping from the running state, the speed can be reduced by regenerative braking, so that safe driving is possible. Further, when traveling on a long downhill or the like, the generated power can be stored, and the power can be effectively used.

A skater auxiliary electric device according to a seventh aspect is the skater auxiliary electric device according to any one of the first to sixth aspects, wherein wheels to which the drive unit is attached are both front and rear wheels of the skater.

In this case, high output can be obtained when the output is not sufficient with only one motor, for example, when high-speed running is required in continuous running on a steep uphill or in a game. Claim 8
The skater auxiliary drive device according to any one of claims 1 to 7, wherein the power supply battery of the drive motor and the storage box of the control circuit are respectively attached to the handle shaft.

Since the battery and the control circuit are centrally mounted on the steering wheel, the upper surface of the board can be widely used and the steering can be easily performed. The skater auxiliary driving device according to claim 9 is the skater auxiliary electric device according to any one of claims 1 to 8,
At least the power supply battery of the drive motor has a flat rectangular shape and is installed integrally on the board.

Since the power supply battery is placed on the board, the foot can be put on the upper surface of the board, and the battery does not interfere. The skater auxiliary driving device according to claim 10 is the skater auxiliary electric device according to any one of claims 1 to 9, wherein the movable roller attached to the movable substrate is located at a position separated from a position in contact with a wheel. Can be fixed in each rotation posture.

Therefore, when the movable substrate is fixed on the side where the transmission roller is in contact with the wheels, traveling by the auxiliary power is possible,
When the transmission roller is fixed on the side distant from the wheel, it can be used as a normal kick skater, and can be used arbitrarily.

[0029]

Next, an auxiliary electric device for a skater according to an embodiment of the present invention will be described. First Embodiment FIG. 1 is a side view showing a state in which a skater auxiliary electric device according to a first embodiment is mounted on wheels of a skater, FIG. 2 is an enlarged view of a main part of a skater auxiliary electric device, and FIG. 2 is a front view of FIG.

Since the skater auxiliary drive device of the present invention is based on the premise that a skater is present, the structure of the skater will be described first. In FIG. 1, reference numeral 1 denotes a handle shaft of a skater, and the handle shaft 1 in the illustrated example has a telescope-like extendable structure, and can be fixedly wound at an arbitrary extendable position by a tightening band member 1a.

A wheel 3 is supported by a fork 2 formed at the lower end of the handle shaft 1. A handlebar 4 is attached to the upper end of the handle shaft 1. Although not shown, a brake lever provided on the handlebar 4 to enable a brake operation of a brake device provided on a rear wheel or the like may be used.

The handle shaft 1 is supported by a head pipe 5 so as to be rotatable around the axis. The head pipe 5 is attached to a front portion of a board 6 via a stay 8 at a hinge 7 so as to be bent and rotatable. ing.

Accordingly, the handle shaft 1 in the illustrated example is configured to be foldable in the direction shown by the dotted arrow at the hinge portion 7 and is also expandable and contractible in the direction of the arrow. In addition, a latch device 9 is provided at the hinge portion 7 of the stay 8 so that the handle shaft 1 can be fixed at each of the standing position and the folding position.

The latch device 9 has an elongated plate 8a formed in the stay 8 which engages with an engagement plate 9a standing on the surface of the board 6 and engagement recesses 9b... 9b formed on the outer peripheral edge of the engagement plate 9a. And a lever 9d for operating the pin 9c in a direction to come out of the engagement recess 9b.
It is composed of

At the rear end of the board 6, a wheel 11 is
It is supported by 2. In the drawing, reference numeral 11a denotes a brake plate which also serves as a mudguard for the rear wheels 11, one end of which is pivotally supported on the upper surface of the board 6, and normally urged by a spring in a direction away from the wheels 11, and Wheel 1 against the power
If one steps on the outer periphery, the brake is applied by the frictional force.

Although not shown, a stand may be provided on the lower surface of the board 6 so that the vehicle body can stand alone when stopped. In FIG. 1, reference numeral 10 denotes a battery case containing a battery, which is formed in a flat plate shape and is mounted flat on a board 6 so that an operator can ride on the battery case 10. of course,
The battery case 10 has sufficient strength to withstand the weight of a person.

The battery case 10 does not necessarily need to be provided so as to overlap the board 6, and a battery case 10 containing a battery may be attached to the handle shaft 1 as shown in FIG.

As shown in FIG. 5, the battery case 10 shown in FIG. 2 has a handle 10a having a bifurcated root portion, and is attached to the body of the battery case 10 with screws 10b. Have been able to.

Then, as shown in FIGS. 1 and 2, the skater auxiliary drive device 13 according to the embodiment of the present invention is attached to the fork portion 2 of the wheel 3. Next, the skater auxiliary drive device 13 will be described.

The skater auxiliary driving device 13 includes a fixed substrate 14 along the fork portion 2 of the wheel 3 as shown in FIG. 3 to FIG. A movable substrate 18 rotatably mounted on the movable shaft 18 as shown by an arrow, a transmission roller 15 pivotally supported by the movable substrate 18, and a drive motor for driving the transmission roller 15 via a transmission device 16. And a drive motor 17 attached to the movable substrate 18.

Hereinafter, the structure of the skater auxiliary driving device 13 will be described in more detail. The fixed substrate 14 is shown in FIG.
As shown in FIG. 4, the side view has a contour shape along the fork portion 2 of the wheel 3, and as shown in FIG. 5, a surface unevenness shape along the fork portion 2 of the wheel 3.

The fixed base plate 14 is provided with a hole 14a through which the axle 3a of the wheel 3 penetrates and a locking claw 14b associated with the edge of the fork portion 2. The locking claw 14b is provided on the edge of the fork portion 2. The hook 3 can be fixed to the side surface of the fork portion 2 by hooking and fastening the axle 3a with the nut 3b.

The movable substrate 18 is rotatably supported in the direction of arrow P with respect to the fixed substrate 14 by bolts 18a fastened with an axis parallel to the axle 3a. Reference numeral 19 denotes a circumferentially curved slit hole formed along the circumference centered on the shaft support portion by the bolt 18a, and the rotation of the movable substrate 18 around the bolt 18a is within the length of the slit hole 19. It is restricted to become.

As shown in FIG. 5, a shaft 15a of the transmission roller 15 is supported on the movable substrate 18. A pulley 15b is provided on the other side of the shaft 15a between the transmission roller 15 and the movable substrate 18 therebetween.

A tension spring 32 is provided between the movable substrate 18 and the fixed substrate 14, and the transmission roller 15 is pressed against the outer surface of the wheel 3 by the tensile elasticity of the tension spring 32. In FIG. 5, only the center line of the tension spring 32 is shown by a dashed line to avoid complication of the drawing.

A drive motor 17 is mounted on the movable substrate 18. As shown in FIGS. 3 and 4, the mounting portion is provided with a split annular portion 18b on the movable substrate 18 into which the casing of the drive motor 17 can be fitted. The casing of the drive motor 17 is provided in the annular portion 18b. The fastening member 18c is fitted and fastened to the split portion by fastening and tightening.

A pulley 17a for a toothed belt as a transmission 16 is also attached to the rotating shaft of the drive motor 17, and a transmission 16 such as a toothed belt is provided between the pulley 17b and the pulley 15b on the transmission roller 15 side. It is wound.

In the drawing, reference numeral 16a denotes a tension roller, which is provided on the loose side of the toothed belt as the transmission device 16,
It is provided to adjust the belt tension and increase the wrapping angle to improve the transmission efficiency.

In the figure, reference numeral 30 denotes a clutch lever of the movable substrate 18, which is supported on the fixed substrate 14 by a shaft 31 and whose one end 30a can be brought into contact with the edge of the movable substrate 18 and which is rotated. As shown in FIG. 3, the movable substrate 18 is rotated and the transmission roller 15 is moved by the elasticity of the tension spring 32.
Is pressed into contact with the wheel, or is engaged with a recess 18d formed in the movable substrate 18 as shown in FIG. 4, thereby separating the wheel 3 from the transmission roller 15 pivotally supported by the movable substrate 18. It has been like that.

As the transmission roller 15, a metal roller or a rubber roller having an outer surface with an uneven groove, or a rubber roll reinforced with canvas, wire, or the like is used so that frictional driving can be performed efficiently. Since the metal roller may slip when the wheel gets wet and the power transmission efficiency deteriorates, it is desirable to use a rubber roller or a rubber roll reinforced with canvas or wire.

Although the tension spring 32 is used as the spring for biasing the movable substrate 18 in the first embodiment, a helical spring may be fitted coaxially with the rotation shaft. It may be configured to be biased by elasticity in the rotation direction.

In FIG. 5, a member indicated by a dotted line indicates an outer casing of the skater auxiliary driving device 13, and is provided as necessary. Next, in the figure, reference numeral 20 denotes a control circuit 20.
FIG. 3A shows a casing in which a control circuit for driving or stopping the drive motor 17 is housed.

FIG. 6 shows an example of the control circuit 20a.
The power of the drive motor 17 is supplied from the battery 10 through a fuse 27 and a main switch 28 via a relay switch 21. The relay switch 21 operates when the electromotive force of the drive motor 17 reaches a certain voltage or higher. To operate.

The resistor 24 shown in the circuit diagram activates the thyristor 23 when the electromotive force of the drive motor 17 reaches a certain voltage or more. An appropriate resistance value is used.

Reference numeral 25 denotes a switch for shutting off the operating power supply of the relay switch 21. The switch can be arbitrarily connected or disconnected, and when the brake 11a is operated by a timer or by the drive motor 17 during automatic running. Further, the relay is shut off in conjunction with the movement of the brake, and the relay switch 21 is reset.

In FIG. 6, a circuit enclosed by a dotted line is a circuit of a pilot lamp for checking the voltage of the battery, and is cut off during traveling by a limit switch 26 which is turned on when a traveling speed is detected over a certain level.
The contact is made by operating when the vehicle is stopped.

A portion surrounded by a two-dot chain line indicates a circuit of a pilot lamp for displaying a voltage.
The color of the lighting light is changed. Since the drive motor 17 and the battery 10 may be used for auxiliary power, a small drive motor and a small capacity battery are sufficient, and the total weight is 10 to 14 kg.
Transportable weight.

Next, the use state of the skater auxiliary electric device will be described. First, the nut 3b of the axle 3a of the front wheel 3 of the skater as shown in FIGS. 1 and 2 is removed, the fixed board 14 is applied to the fork 2, and the claw 14b is attached to the fork 2.
The skater auxiliary driving device 13 is attached to the side surface of the fork portion 2 by hooking the axle 3a through the through hole 14a and tightening the nut 3b.

Therefore, even with the existing skater, the axle 3
The skater auxiliary drive device 13 can be easily attached only by attaching and detaching the lock nut 3b of a. When the clutch lever 30 is tilted in the releasing direction as shown in FIG. 3, the transmission roller 15 is pressed against the wheels 3 by the urging force of the spring 32, and the driving force can be rolled. As shown, when the clutch lever 30 is tilted in the engaging direction, the movable substrate 18 is raised, the transmission roller 15 is separated from the wheels 3, and the skater can travel freely.

Next, the operation method will be described. As shown in FIG. 1, the clutch lever 30 of the skater to which the skater auxiliary drive device 13 is attached is tilted down in the releasing direction as shown in FIG. 3, the transmission roller 15 is pressed against the wheel 3, and the handlebar 1 a is held. Put one foot on 6, kick the ground with the other foot, start running and increase the speed.

At this time, since the drive motor 17 is driven and rotated by the wheels 3, an electromotive force generated by rotation of a rotor (not shown) of the drive motor 17 flows to the thyristor 23 through the resistor 24.

When the electromotive force exceeds a certain level, the thyristor 23 operates, the relay switch 21 is turned on, and power is supplied to the drive motor 17. At this moment, the drive motor 17 changes to a drive source and starts driving the wheel 3 via the contact roller 13. Therefore, the foot kicking the ground can be moved onto the board 6 and the vehicle can automatically travel by the drive motor 17 thereafter.

Then, as long as the speed is higher than a certain level, the drive motor 17 continues to operate as a drive source and continues running. Next, when stopping, the brake plate 11a of the rear wheel 11
To reduce the speed due to frictional resistance. Then, the electromotive force of the drive motor 17 checked at regular intervals decreases, so that the power supply is cut off by the operation of the thyristor 23, and the drive force is also lost. Then, the thyristor 23 is reset.

Thereafter, the drive motor 17 is rotated in the reverse direction from the wheels 3 via the contact rollers 13, causing a running resistance to further reduce the running speed of the skater auxiliary electric device and to safely stop.

When the vehicle travels again normally, the user steps down from the board 6 and kicks the ground again to increase the speed. Since the thyristor 23 is in a reset state, the resistance 24 and the thyristor 23 determine whether or not the thyristor 23 is self-propelled by the electromotive force of the drive motor 17 that is driven to rotate by contact with the wheel 3 as in the case of the first running. Is checked by the action of

When the thyristor 23 is turned on, the relay switch 21 operates to supply the original power. On the other hand, when there is only an electromotive force equal to or less than the predetermined value, the relay switch 21 does not operate, and the drive motor 17 does not rotate.

Therefore, the ground is further kicked to increase the speed until the electromotive force at which the thyristor 23 becomes conductive is reached. As described above, since the speed check by the drive motor 17 is controlled to the safe side in the stopping direction, there is an effect that anyone can safely and easily operate without any particular skill.

In the above embodiment, a circuit for rectifying the regenerative power to DC and flowing it to the storage battery side is provided in the relay switch 21 so that the power supply to the drive motor 17 is cut off and the circuit for the regenerative electromotive force simultaneously. If it is turned on, the electromotive force is supplied to the storage battery every time the brake is applied, so that the energy can be effectively used.

In particular, when going down a long slope, the regenerative electric power can be effectively used. In the above embodiment, FIG.
In the circuit 20a shown in (1), a push-on switch (not shown) in which the switch 25 is attached to the handlebar 4
The motor 17 may be operated only while the push-on switch is being pressed, and only when the thyristor 23 is conducting.

Further, a timer is attached to the relay switch 21 so that the circuit is shut off after a certain period of time, for example, 20 seconds, has elapsed since the operation of the motor 17, and the motor 17 does not operate unless acceleration by foot kicking is performed again. Is also good. In this case, an accident such as a case where the speed is too high contrary to the intention of the operator and the operation is confused can be prevented.

In this case, the speed check may not function unless a certain period of time has elapsed after the above-mentioned circuit interruption. Even if the circuit is interrupted, the speed is not sufficiently reduced, and the thyristor is immediately turned on, thereby preventing the effect that the effect of the circuit interruption is substantially lost. In particular, safe driving can be achieved in a situation in which the vehicle is approaching a downhill and the speed is unlikely to decrease.

As described above, according to the auxiliary driving device for a skater, the auxiliary driving device can be easily mounted even with an existing skater, and further, after the mounting, safe operation can be performed. Having. Second Embodiment FIG. 7 shows a side view of a second embodiment, in which an auxiliary driving device for a skater is provided on a wheel 11 behind a board 6.

In the second embodiment, the rear wheels 1 of the board 6 are different from the front wheels 3 of the first embodiment.
1 is different from that of the first embodiment, and the same or corresponding parts as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment.

In the second embodiment, the fixed board 14 is mounted on the side of the frame 6a for supporting the rear wheel 11 on the axle 12a.
Can be attached with a nut or screw 11b.

The movable substrate 18 is slidable in the direction indicated by the arrow Q by a guide groove 18a fitted in the guide 14a provided on the fixed substrate 14, and is normally pulled toward the wheel 11 by a tension spring 32. Being energized.

As in the first embodiment, a shaft 15a of the transmission roller 15 is supported on the movable substrate 18, and a pulley 15b is provided on the shaft 15a. Similarly to the first embodiment, the drive motor 17 has a split annular portion 18b into which the drive motor 17 can be fitted.
The driving motor 17 is fitted into the annular portion 18b, and the tightening member 18c is fastened to the split portion by fastening.

A pulley 17a for a toothed belt as a transmission device 16 is also attached to the rotating shaft of the drive motor 17, and the tension between the pulley 17b and the pulley 15b on the transmission roller 15 side is adjusted by a tension roller 16a. A transmission 16 such as a toothed belt is wound therearound.

The lever 30 is pivotally supported by the fixed substrate 14 with respect to the movable substrate 18, and when the lever 30 is operated in the direction of arrow R, the distal end 30 a of the movable substrate 18 resists the tensile force of the tension spring 32. The transmission roller 15 is pushed out and moved away from the outer periphery of the wheel 11 by this movement, and the transmission roller 15 is pressed against the outer periphery of the wheel 11 by the reverse operation.

Further, a rounded protrusion 30b is provided at the tip of the lever 30, while a concave portion 18b for receiving the protrusion 30b is formed on the periphery of the movable substrate 18, and as shown in FIG. When operated in the extrusion direction,
The projection 30b of the lever 30 is fitted in the recess 18b so that the electric roller 15 can be fixed in a state separated from the wheel 11.

The auxiliary driving device 13 for the skater of the rear wheel 11 has a cantilever structure fixed to only one side of the frame 6a, and has a double bearing structure as shown in FIG. , The operating side end of the lever 30 may be integrally connected by a connecting bar 30c, and the clutch lever 30 may be operated by pressing this portion.

For example, by stepping on the connecting bar 30c against the movable board 18 in the running state, the electric roller 15 is moved so as to be separated from the wheels, and the projection 30b and the recess 18b are moved.
Can be fitted and maintained fixed in that state.
To return, the lever 30 may be raised in the opposite direction.

The lever 30 is connected to the transmission roller 15
When it is away from the wheels 11, it may rotate freely and generate noise. In order to prevent such free rotation, as shown in FIGS. 7 and 8, an elastic ring 30w made of synthetic rubber or the like is bridged between the lever 30 and the fixed substrate 14, and is elastically fastened. . Further, a helical spring (not shown) is coaxially fitted on the support shaft 31 of the lever 30, and
The resilient force may cause the lever 30 to rotate in any direction and be pressed down, thereby preventing the lever 30 from vibrating.

In the skater auxiliary driving device 13 shown in FIG. 10, the electric motor 17, a transmission device such as a pulley,
This shows a state in which it is housed in a casing 45. The mounting position of the battery case 10 accommodating the battery of the power supply, for example, whether the battery case 10 is placed on the board 6 or mounted on the handle shaft 1, the selection of the mounting position of the casing of the control circuit, and the configuration of the control circuit 20a are described. Since it is completely the same as the first embodiment, detailed description is omitted.

In the second embodiment, the axis of the rear wheel 11 is removed from the frame, and the fixed substrate 14 is applied thereto.
If the lock nut of the wheel 11 is fitted and fastened as before, the mounting is completed as it is.

Thereafter, it is used in the same manner as in the first embodiment. In the case of the second embodiment, since the skater auxiliary drive device 13 is attached to the rear wheel 11, for example, there is an accessory such as a shock absorber in the fork portion 2 of the front wheel 3, and the front wheel 3 This is applied when the skater auxiliary drive device 13 cannot be attached.

Since the movable substrate 18 can have the same shape for both front and rear wheels, the skater auxiliary drive device can be implemented simply by changing the shape of the fixed substrate, and can be implemented at low cost.

In the first embodiment, the skater auxiliary driving device is mounted on the front wheel, and in the second embodiment, the skater auxiliary driving device is mounted on the rear wheel. You may comprise so that it may be driven simultaneously.

In this case, the running horsepower is doubled, which is suitable when the vehicle runs on a long uphill or when a high speed is required in a competition or the like. As a control circuit in this case, the running resistance of the front and rear wheels is checked for the voltage and current applied to the motors, and based on the result, the voltage and current are controlled so as to average the load of both motors. Is a control circuit for improving the efficiency of the control.

[0089]

As described above, according to the present invention, an auxiliary driving device can be easily provided to an existing skater simply by attaching a fixed substrate to the side of each wheel, and the installation work is also simple. Therefore, there is an effect that the implementation is easy.

Further, since the auxiliary drive device is used, a large-scale motor, battery, and the like are not required, and there is an effect that the device can be provided at very low cost. The skater auxiliary driving device does not work unless the speed is higher than a certain speed, so that it is safe while unfamiliar. Therefore, the size of the device such as a battery and a motor can be reduced.

Further, if a certain period of time has elapsed after traveling, if the power supply is automatically cut off, the power will not be turned on unless the foot is again kicked and the speed is increased, resulting in confusion in maneuvering. If you do, you can drive safely.

If the power of the electric motor is not turned on until a certain time has elapsed, even if the power is cut off by the timer, the power is turned on again if the speed is maintained at a certain level or more, It is possible to substantially prevent the vehicle from being in a driving continuation state, and has various effects such as safe driving.

The skater auxiliary drive device of the present invention can be attached to both front and rear wheels in order to achieve high horsepower.

[Brief description of the drawings]

FIG. 1 is a side view of a skater to which a skater auxiliary electric device according to an embodiment of the present invention is attached.

FIG. 2 is a side view of another skater to which the skater auxiliary electric device according to the embodiment of the present invention is attached.

FIG. 3 is an enlarged side view of a main part of a front wheel portion in FIG. 1;

FIG. 4 is an enlarged side view of a main part of a front wheel portion of FIG. 1;

FIG. 5 is an enlarged front view of a main part of a front wheel portion in FIG. 1;

FIG. 6 is a control circuit diagram of a drive motor.

FIG. 7 is a side view of a main part of the second embodiment.

FIG. 8 is a side view of a main part of the second embodiment, showing a state where a clutch lever is pushed down.

FIG. 9 is a plan view of a main part of the second embodiment.

FIG. 10 is a rear view of a main part of the second embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 handle shaft 2 fork portion 3 front wheel 3b axle 4 handle bar 5 head pipe 6 board 10 battery 11 rear wheel 12 shaft 13 auxiliary driving device for skater 14 fixed substrate 15 transmission roller 15a pulley for toothed belt 16 transmission device 16a Tension roller 17 Drive motor 17a Pulley for toothed belt 18 Movable substrate 18a Split annular portion 20a Control circuit 30 Clutch lever for movable substrate 32 Tension spring

Claims (10)

[Claims] 1. A skater having wheels on the front and rear sides of a board, wherein the front wheels are steerable by a steering wheel.
A fixed substrate detachably attached to at least one of the front and rear wheel side surfaces in parallel with the wheel, a movable substrate rotatably supported on the fixed substrate around an axis parallel to the wheel axis, A transmission roller attached to a movable substrate and pressed against the wheel; and a driving motor driven by a mounted power supply battery and a control circuit for driving the transmission roller via a transmission device. Is an auxiliary electric device for a skater, which is arbitrarily detachable from the side surface of the wheel. 2. The skater auxiliary drive device according to claim 1, wherein the drive motor is adapted to detect the rotational speed of the wheel based on the detected information.
An auxiliary electric device for a skater configured to be driven by a switch circuit to which power is supplied at a rotational speed equal to or higher than a certain value. 3. A switch circuit in the skater auxiliary electric device according to claim 2, wherein a timer is provided for shutting off the power after a certain period of time has elapsed after the power is supplied, and the switch is turned off after the power is shut off by the timer. An auxiliary electric device for a skater in which a circuit is reset and power is not supplied unless a rotation speed equal to or higher than a certain value is detected again based on detection information of a rotation speed of a rear wheel. In the skater auxiliary electric device according to the third aspect, the power cutoff state by the timer is maintained for a predetermined time by the timer, and thereafter, the switch circuit is reset and the detection information of the rotational speed of the rear wheel is again provided. An auxiliary electric device for a skater, wherein power is not supplied unless a rotational speed equal to or higher than a certain value is detected. 5. The auxiliary electric device for a skater according to claim 1, wherein a power switch for arbitrarily connecting or disconnecting the electric power supplied to the drive motor during operation is provided on the handle shaft. . 6. An auxiliary electric device for a skater according to claim 1, wherein regenerative braking is performed by a drive motor. 7. The skater auxiliary electric device according to claim 1, wherein the wheels to which the fixed substrate is attached are both front and rear wheels of the skater. 8. An auxiliary electric device for a skater according to claim 1, wherein a power supply battery for a drive motor and a storage box for a control circuit are respectively mounted on a handle shaft. 9. An auxiliary electric device for a skater according to claim 1, wherein at least a power supply battery of the drive motor has a flat rectangular shape and is installed integrally on said board. . 10. The auxiliary electric device for a skater according to claim 1, wherein the movable substrates are each rotated so that a transmission roller attached to the movable substrate is at a position apart from a position in contact with a wheel. Auxiliary electric device for skater that can be fixed by