JPH0575086U - Bicycle with auxiliary drive - Google Patents

Abstract

(57) [Summary] [Object] The present invention relates to a bicycle equipped with an auxiliary power source other than human power as a drive source for a bicycle wheel, and automatically rotates a motor for auxiliary drive and charges a battery by generating electricity. It is an object of the present invention to provide a bicycle provided with an auxiliary drive device that is used in the above. [Structure] Motor 4 for rotating wheels 8 on a bicycle
And a generator 3 that is driven to rotate by wheels 8, and a battery 2 that is electrically connected to the motor and the generator, respectively. The generator charges the battery 2 by operating a brake lever 6 of the bicycle. Thus, the motor 4 is present in the bicycle 1 with an auxiliary drive device which is rotationally driven by the pedaling force of the pedal of the bicycle.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bicycle equipped with an auxiliary power source other than human power as a drive source for a bicycle wheel.

[0002]

[Prior Art]

 Conventionally, a bicycle provided with an auxiliary power source has already been proposed. For example, there are those equipped with a motor and a battery to prevent overcharging and overdischarging (Jitsuko 58-8637), those equipped with a battery and an electric motor (Kaikai 57-37096), and the like.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned auxiliary drive device, it is necessary for a bicycle rider to operate the switch appropriately to switch between charging the battery with the generator and rotating the motor by discharging the battery. It was

The present invention has been made in view of the above problems, and provides a self-driving vehicle provided with an auxiliary drive device for automatically rotationally driving the motor for auxiliary drive and charging a battery by a generator. The purpose is to provide.

[0005]

[Means for Solving the Problems]

 The gist of the present invention to solve the above problems and achieve the above object is to provide a bicycle with a motor for rotating the wheels and a generator driven by the wheels, and to electrically connect the motor and the generator to each other. A battery equipped with an auxiliary drive equipped with a battery to be connected, the generator is configured to charge the battery by operating the brake lever of the bicycle, and the motor is rotated by the pedaling force of the bicycle pedal. Exist.

[0006]

[Action]

 According to the bicycle of the present invention, when the brake lever is pulled a little on a downhill, the generator is rotated by the wheels to charge the battery. Further, when the pedal is strongly depressed on an uphill road, when the pedal force exceeds a certain level, the motor is supplied with power from the battery, and the motor rotates to drive the wheels of the bicycle. And even when traveling on level ground, the battery can be charged by the generator by pulling the brake lever appropriately.

[0007]

【Example】

 Next, the present invention will be described with reference to the drawings. FIG. 1 is a front view of a bicycle with an auxiliary drive device according to the present invention, and FIG. 2 is a side view showing a part of the bicycle. FIG. 3 is a block diagram for explaining the circuit of the auxiliary drive device. In the figure, reference numeral 1 is a bicycle with an auxiliary drive device, 2 is a battery, 3 is a generator, 4 is a motor, 5 is a pedaling force sensor attached to a pedal, 6 is a brake lever, 7 is a brake drum, and 8 is a rear wheel. ing.

In the bicycle 1 of the present invention, a battery 2 is attached to a frame of a vehicle body, pedal force sensors 5 and 5 are attached to pedals, a generator 3 is attached to an axle of a rear wheel 8 and a motor 4 is coaxial with the axle. Attach. Then, the control unit 9 is attached to the vehicle body so that the switch 9a for activating the motor 4 is turned on when a certain pressing force or more is applied by the detection of the pedaling force sensor 5.

Further, when the generator 3 provided so as to cover the brake drum 7 uses the resistance force that rotationally drives the generator 3 to apply the brake, the brake lever 6 is gripped by hand. The rotating shaft of the generator 3 contacts the outer peripheral surface of the brake drum 7. When the brake lever 6 is gripped even more strongly, the brake shoe is wound around the brake drum 7 and becomes a brake. Therefore, the brake lever 6 is adapted to perform the braking action in two steps.

In order to rotate the rotating shaft of the generator 3, for example, as shown in FIG. 2, the rotation of the brake drum 7 may be transmitted to the rotating shaft of the generator 3 via a gear or the like. Alternatively, a flat plate may be attached to the rotating shaft of the generator 3 and the flat plate may be pressed against the end surface of the brake drum 7. Further, a pulley provided on the rotating shaft of the generator 3 may be brought into contact with the outer periphery of the tire of the rear wheel 8, and the brake lever 6 is gripped and pulled by hand in this way to move the generator 3 Various known means can be adopted to apply the braking action by rotating.

Further, an AC / DC converter 10 for charging the battery 2 is interposed between the generator 3 and the battery 2. Further, a switch 11 for starting the charging of the battery 2 by the mechanical operation of the brake lever 6 is interposed between the generator 3 and the battery 2.

The motor 4 is mounted coaxially with the axle of the rear wheel 8, and is connected to the axle via a one-way clutch. Therefore, when the motor 4 is not rotationally driven, the axle of the rear wheel 8 runs idle, and when the motor 4 rotates, the axle of the rear wheel 8 is forcibly rotated via the clutch. The motor 4 may also be coaxial with the axle of the rear wheel 8, and the rotating shaft of the motor 4 may be brought into contact with the outer peripheral surface of the tire with a pulley or the like interposed.

Since the bicycle 1 with the auxiliary drive device is configured in this way, for example, on a downhill, when the brake lever 6 is gripped and pulled a little, the generator 3 is rotated by the brake drum 7. The switch 11 is turned on to charge the battery 2 via the AC / DC converter 10. Of course, when the speed is too high and it is dangerous, the brake lever 6 is strongly pulled to perform a normal braking action.

Next, when the bicycle 1 climbs an uphill, the pedal of the bicycle 1 is strongly depressed. Therefore, when the pedaling force sensor 5 detects the pedaling force, a certain level or more is detected. Depending on the judgment, the switch 9a is turned on, electricity is supplied from the battery 2, and the motor 4 rotates to serve as an auxiliary drive source for bicycle traveling.

Since the pedal force sensor 5 detects the pressing force, the weight of a person is different. Therefore, the constant level value of whether or not the switch 9a in the control unit 9 is turned ON is set to a person who rides a bicycle. The setting can be changed accordingly.

Although the bicycle 1 with the auxiliary drive device according to the present invention is formed as described above, the bicycle 1 is not limited to the above-described one embodiment and can be modified, and it is standard that the bicycle is traveling downhill or uphill. It may be made possible to select whether to drive the motor 4 or charge the battery 2 by the generator 3 by automatically detecting it by the device. It is also possible to equip the front wheels of the bicycle with a generator or motor. Further, when the pedal is rotated in the reverse direction, the generator 3 may be rotated to charge the battery 2.

[0017]

[Effect of the device]

 As described above, in the bicycle with the auxiliary drive device according to the present invention, the bicycle is provided with the motor that rotates the wheels and the generator that is rotated by the wheels, and the motor and the generator are electrically connected to each other. A battery is installed, the generator charges the battery by operating the brake lever of the bicycle, and the motor is driven to rotate by the pedaling force of the bicycle pedal, so the motor is automatically assisted. It can be used as power and can easily travel uphill. Further, since the battery can be charged on a downhill, the battery life can be extended and used for a long time.

[Brief description of drawings]

FIG. 1 is a front view of a bicycle with an auxiliary drive device according to the present invention.

FIG. 2 is a side view illustrating a part of a bicycle with an auxiliary drive device, which is taken out and described.

FIG. 3 is a block diagram for explaining a circuit of an auxiliary drive device.

[Explanation of symbols]

1 bicycle with auxiliary drive device, 2 battery, 3 generator, 4 motor, pedal force sensor attached to 5 pedals, 6 brake levers, 7 brake drums, 8 rear wheels.

Claims (1)

[Scope of utility model registration request] 1. A bicycle is provided with a motor that rotationally drives wheels and a generator that is rotationally driven by the wheels, and a battery that is electrically connected to each of the motor and the generator. A bicycle with an auxiliary drive device, characterized in that a battery is charged by operating a brake lever, and the motor is rotationally driven by a pedaling force of a bicycle pedal.