JP2004136750A - Hybrid bicycle and three-fold hybrid bicycle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new hybrid bicycle which can be folded in three. <P>SOLUTION: This hybrid bicycle uses manual system driving and/or electric power system driving by being furnished with a manual driving system which can travel by using a transmission and an electric power driving part mounted on a fixed shaft of a rear wheel and which can travel by rotating it with motive power of a battery loaded in an electric power unit newly mounted on a bicycle body. This bicycle is three-folded by folding two points on a central part and a handle pipe. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a hybrid bicycle having a transmission of a manual drive system for transmitting pedaling force by a pedal to a rear wheel, and an electric drive unit of a motor drive system for directly transmitting power of a battery loaded in an electric unit to a rear wheel. More specifically, the present invention provides a novel hybrid bicycle in which a battery is operated by a switch operation when traveling on a slope or the like, and a coaxial motor of a rear wheel can be automatically rotated only by manual driving and accelerator operation.
[0002]
[Prior art]
Conventionally, bicycles of the manual drive system that transmit the pedaling force of the pedal to the rear wheel have been used for a long time, but recently, as disclosed in JP-A-57-74285, an electric motor is mounted on the bicycle, BACKGROUND ART Bicycles with an electric motor in which an electric motor is activated when a driving force by human power is detected and the driving force exceeds a set value are known.
[0003]
However, in the bicycle with an electric motor, a one-way clutch of a manual drive system for transmitting rotation of a crankshaft to a resultant shaft and a one-way clutch of an electric drive system for transmitting rotation of a motor to the resultant shaft are arranged in parallel on the resultant shaft. Therefore, there is a disadvantage that the axial width of the driving device is increased.
[0004]
As a solution to this drawback, Japanese Patent Laid-Open No. 2000-296794 "Bicycle with an electric motor" discloses a compact drive device, a small crank pedal interval to facilitate the pedal depressing operation, and a pedal position at the start of traveling. There is disclosed a bicycle with an electric motor that can adjust the speed.
[0005]
This bicycle has a crankshaft driven by a crank pedal of a manual drive system, a resultant shaft connected to a transmission system of a rear wheel, and a manual drive system arranged coaxially with the crankshaft to transmit rotation of the crankshaft to the resultant shaft. A one-way clutch, an electric drive system gear train that transmits the motor output of the electric drive system to the resultant shaft, and a one-way electric drive system arranged in the middle of the electric drive system gear train and non-coaxially with the crankshaft. A clutch, a torque responsive mechanism arranged coaxially with the resultant shaft and downstream of the one-way clutch of the manual drive system, and disposed coaxially with the crankshaft; And an electric motor-equipped bicycle equipped with a sensor for detecting the displacement of the electric motor, characterized in that the driving force of the electric motor is controlled in response to a change in the driving force due to human power.
[0006]
Further, Japanese Patent Application Laid-Open No. 2002-154471 discloses an “electric bicycle” as an electric bicycle that can ensure coaxiality between an output cylinder of a transmission serving as a motor shaft and a shaft to which a fixed casing is fixed. A rotating casing, a fixed casing provided coaxially with the rotating casing, a transmission for transmitting human-powered driving force mounted coaxially with the shaft, A driving wheel drive motor built in a fixed casing centering on the machine, the fixed casing is configured to be able to be divided into two parts on the left and right of the shaft, and these two parts are It engages with each other with a degree of freedom of movement, whereby one part of the fixed casing, which is mounted coaxially with the transmission, is connected to the shift. Electric bicycle ", characterized by being adapted to secure a coaxial state by absorbing the movements of the other part deviated from the coaxial state is disclosed with machine.
[0007]
On the other hand, a bicycle in which a bicycle having a divided frame structure can be separated from each other is disclosed in Japanese Utility Model Publication No. 57-32951, but the divided frames are coupled and separated by bolt / nut coupling portions provided at two places. However, it has the disadvantage that it takes time and effort to loosen the bolts and nuts of the pivot support portion and to pull out the bolts constituting the pivot from the frame in order to completely separate the bicycle. Was.
[0008]
In order to solve this problem, Japanese Unexamined Patent Application Publication No. 2001-278161 entitled "Bicycle having a split frame structure" discloses a bicycle capable of separating a two-part body frame with one touch. In a bicycle having a divided frame structure having a boss provided on each surface and a pivot inserted through the boss, one of the bosses provided on the front frame side and the rear frame side has the entire length in the insertion direction of the pivot. A notch formed in the boss, and a thin portion which is longer than the length of the boss provided with the notch and is thinner than the width of the notch is provided on the pivot, and the notch between the thin portion and the boss is provided. Bicycle having a divided frame structure, wherein the pivot is configured to be movable up and down so that That.
[0009]
[Problems to be solved by the invention]
As described above, electric bicycles are equipped with a battery and a motor on conventional bicycles so that they can easily travel on slopes and the like.However, electric bicycles have the limitation of assisting human-powered driving force. I had to deal with it by adjusting the torque.
[0010]
Also, as a folding type, a bicycle in which a body frame is divided into a front frame and a rear frame is also known.
[0011]
[Means for Solving the Problems]
The inventor of the present invention has conducted intensive studies to solve the above-mentioned problem. As a result, a new rechargeable battery is mounted in place of the conventional electric bicycle, and power can be directly operated by operating a switch and traveling can be controlled by operating an accelerator. Hybrid bicycles.
[0012]
That is, a first aspect of the present invention is a transmission of a manual drive system that transmits the pedaling force of the pedal to the rear wheels, and an electric drive unit of a motor drive system that directly transmits the power of the battery loaded in the electric unit to the rear wheels. The electric unit includes a battery attached to the vehicle body frame and detachably attached inside the unit, and a switch attached to the outer surface of the unit. This is a hybrid bicycle characterized in that the rear wheel coaxial motor is driven directly by the accelerator provided in the bicycle.
[0013]
In the second aspect of the present invention, the battery is operated by turning on a switch, electricity is transmitted to a winding provided in a coaxial motor of a rear wheel, and a stator around which the winding is excited excites N. The hybrid bicycle according to claim 1, wherein the drive shaft is rotated via the bush while generating a pole or an S pole and repelling or attracting the N pole of the permanent magnet attached to the rotor. is there.
[0014]
A third aspect of the present invention is characterized in that the electric unit is provided with an electric double layer capacitor in addition to a battery which is attached to the vehicle body frame as necessary and is detachably attached inside the unit. A hybrid bicycle as described.
[0015]
A fourth aspect of the present invention is the hybrid bicycle according to claim 1, wherein the electric unit is provided with an alarm device for displaying a remaining amount of electric power on an outer surface of the unit.
[0016]
A fifth aspect of the present invention is a human-powered transmission that transmits the pedaling force of the pedal to the rear wheels, and an electric drive unit that transmits the power of the battery loaded in the electric unit directly to the rear wheels. The electric unit includes a battery attached to the vehicle body frame and detachably attached inside the unit, and a switch. The battery is operated by a switch operation, and is directly operated by an accelerator provided on the handle portion. In the hybrid bicycle characterized in that a coaxial motor of a rear wheel is driven, the vehicle body frame is divided into a rear end portion of a front frame and a front end portion of a rear frame to which an electric unit is fixed. A three-fold hybrid bicycle characterized in that the upper part and the handle pipe are divided into two parts, and the vehicle body itself is folded in three.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is an overall side view of a hybrid bicycle according to an embodiment of the present invention. A feature of the hybrid bicycle 1 of the present invention is that when the battery case 15 is installed at the center and the switch provided on the side of the case 15 is turned on, the accelerator 2 of the handle portion is rotated back and forth, thereby This is to directly drive the coaxial motor 37 attached to the limb.
[0018]
In this case, a rechargeable battery (not shown) in which a plurality of nickel-metal hydride batteries or lead batteries are disposed can be detachably mounted in the battery case 15, and the battery is removed for charging. Alternatively, the charging mechanism may be extended while the battery is attached by extending the electric cord.
[0019]
When the switch is turned on, as shown in FIG. 9, a current flows through the winding 42 attached around the stator 43 installed in the coaxial motor 37, and a positive potential or a negative potential is excited on the stator surface. As shown in FIG. 10, the S pole excited on the surface of the stator 43 attracts each other to the N pole on the surface of the permanent magnet 47 attached to the rotor 47, and the N pole repels, so that the rear wheel 51 Is designed to rotate clockwise.
[0020]
In the present invention, a stator 43 is connected via a bush 41 around a fixed shaft 38, and furthermore, windings 42 are wired on both side ends of the stator 43. The rear wheel 51 is automatically moved by generating a force and rotating the fixed shaft by inflating the accelerator, and the pedal 39 is further pedaled by using the transmission 39 so that the fixed shaft 38 is moved through the transmission 39. It is also possible to rotate the rear wheel 51 manually or by using the transmission 39 and the coaxial motor 37 together.
[0021]
In this case, in the present invention, as shown in FIG. 10, the permanent magnet 47 attached to the rotor 46 is set to be divided into two, and the stator 43 is set to be divided into three. However, these divisions can be appropriately performed.
[0022]
In the present invention, in addition to the battery, an electric double layer capacitor (not shown) is provided inside the electric unit. Usually, this electric double layer capacitor is used in combination with an electronic device, but a current pump of a power converter, a capacitor bank composed of capacitors connected in series, a device for overcharging protection of a capacitor and a device for initializing charging. And a fuel gauge that displays the amount of stored energy of the capacitor.
[0023]
In the present invention, the parallel monitor is installed in conjunction with the battery in the electric unit so that the brake energy can be charged and discharged during brake control on a downhill road or the like.
[0024]
In addition to the switch, an alarm (not shown) is attached to the outside of the electric unit so that charging is promoted when the storage of the battery falls below a certain level.
[0025]
The sound of the alarm allows the user to know when the battery is being charged, and it is easy to prevent the battery from being deteriorated or damaged due to no charging.
[0026]
Another feature of the present invention is that, as shown in FIG. 1, a rear bent portion 16 is provided at a connection surface between the end portion of the battery case 15 and the center frame 10, and a front bent portion 9 is provided at a center portion of the handle pipe 5. This makes it possible to fold a hybrid bicycle in three.
[0027]
In this case, first, the rear bent portion moves the bicycle with the rear bent portion 16 closed by the rear lock lever 36 as shown in FIG. 5, but when the bicycle is transported, as shown in FIG. When the handle of the lock lever 36 is moved upward to release it to the right to release the lock, and then the front frame 10 is opened to the left and right while the rear lock lever 36 is lifted up inside the rear pin fixing portion 30. As shown in FIG.
[0028]
Further, as shown in FIG. 2, the front bent portion 9 provided at the center of the handle pipe 5 locks the handle pipe 5 with the front lock river 21 as shown in FIG. When the lock river 21 is moved upward to release the lock and this portion is folded in two, the whole can be folded in three as shown in FIG.
[0029]
In this case, the handle pipe 5 in which the accelerator 2 and the bell 4 and the like bent at the front bent portion 9 are located so as to be sandwiched between the front wheel 7 and the rear wheel 51, so that the space can be made smaller. It has become.
[0030]
The saddle 13 and the loading platform 14 shown in FIGS. 7 and 8 are also detachable on the battery case 15, so that they can be easily attached and detached at the time of transport, and can be transported in a more compact manner.
[0031]
【The invention's effect】
The hybrid bicycle of the present invention moves forward by rotating the transmission gear 19 by pedaling on the pedal 18 on a normal road, but rotates the coaxial motor 37 using a battery on a private road on a hill or the like, By using the rotation of the transmission gear 19 by human power and the rotation of the motor by use of a battery together, it is possible to run on a hill or the like with a small stepping force of the user.
[0032]
Also, as described above, the hybrid bicycle 1 of the present invention can be folded in three at the bent portions provided at two places, so that it can be folded to a size that can be mounted in two trunks of an ordinary car. This facilitates handling during transport.
[Brief description of the drawings]
FIG. 1 is an overall side view of a hybrid bicycle according to an embodiment of the present invention.
FIG. 2 is a partially enlarged view of a front wheel portion in FIG.
FIG. 3 is a plan view showing an open state of a bent portion of the handle pipe in FIG. 2;
FIG. 4 is a front view showing a closed state of a bent portion of the handle pipe in FIG. 2;
FIG. 5 is a partially enlarged view of a rear frame in FIG. 1;
FIG. 6 is a plan view showing an open state of a bent portion of a rear frame in FIG. 5;
FIG. 7 is an overall side view of the hybrid bicycle of FIG. 1 folded in two.
FIG. 8 is an overall side view in which the hybrid bicycle of FIG. 1 is folded in three.
FIG. 9 is a partial cross-sectional view of the electric drive unit in the rear wheel unit.
FIG. 10 is a sectional view taken along line AA ′ in FIG. 9;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Hybrid bicycle 2 ... Accelerator 3 ... Brake lever 4 ... Bell 5 ... Handle pipe 6 ... Front hub 7 ... Front wheel 8 ... Front mudguard 9 ... Front bent portion 10 Front frame 11 Rear first frame 12 Rear second frame 13 Saddle 14 Loading bed 15 Battery case 16 Rear bent portion 17: Gear 18: Pedal 19: Transmission gear 20: Rear mudguard 21: Front lock river 22: Front bent hinge 1
23 Front hinge hinge 2
24 ... shaft 25 ... small hole 26 ... handle fixing bolt 27 ... front spring 28 ... front pin fixing part 29 ... rear spring 30 ... rear pin fixing part 31 ..Rear hinges 1
32: shaft 33: rear bent portion hinge 2
34 ... small hole 35 ... small hole 36 ... rear lock lever 37 ... coaxial motor 38 ... rear wheel spoke 39 ... transmission 40 ... bearing 41 ... bush 42 ... .... Winding 43 ... Stator 44 ... Side plate 1
45 ... side plate 2
46 ... rotor 47 ... permanent magnet 48 ... bearing 49 ... sprocket 50 ... brake drive 51 ... rear wheel 52 ... fixed shaft

Claims (5)

A manually driven transmission that transmits the pedaling force of the pedal to the rear wheels; and an electric drive unit of a motor drive system that directly transmits the power of the battery loaded in the electric unit to the rear wheels. A battery mounted on the vehicle body frame and detachably mounted inside the unit, and a switch mounted on the outer surface of the unit. The battery is operated by operating the switch, and directly operated by an accelerator provided on the handle portion. A hybrid bicycle characterized by driving a coaxial motor of wheels. The battery is operated by turning on a switch, electricity is transmitted to a winding provided in a coaxial motor of a rear wheel, and an N pole or an S pole is generated by exciting a stator around which the winding is wound. The hybrid bicycle according to claim 1, wherein the drive shaft is rotated via the bush while repelling or attracting the N pole of the permanent magnet attached to the rotor. 2. The hybrid bicycle according to claim 1, wherein the electric unit is provided with an electric double-layer capacitor in addition to a battery which is attached to the vehicle body frame as necessary and is detachably attached inside the unit. The hybrid bicycle according to claim 1, wherein the electric unit is provided with an alarm device for displaying a remaining amount of electric power on an outer surface of the unit. A manually driven transmission that transmits the pedaling force of the pedal to the rear wheels; and an electric drive unit of a motor drive system that directly transmits the power of the battery loaded in the electric unit to the rear wheels. The switch is composed of a battery attached to the body frame and detachably attached inside the unit, and the switch is operated. The battery is operated by the switch operation, and the coaxial motor of the rear wheel is directly driven by the accelerator provided on the handle portion. In the hybrid bicycle, the rear end of the front frame and the front end of the rear frame to which the electric unit is fixed are divided into two parts, and the upper part of the front end of the front frame and the handle pipe are further divided into two parts. A tri-fold hybrid bicycle, which is divided and the body itself is tri-folded.

Images