JPH07215264A - Electric bicycle - Google Patents

Abstract

PURPOSE:To provide an electric bicycle in which no abnormal load is applied to a motor for wheel driving by a braking operation. CONSTITUTION:When a braking operation is carried out by gripping at least one side of a front brake lever 8 or a rear side brake lever 11, when a motor 1 to drive the rear wheel 5 is being rotated, a braking switch 18 is operated. That is, a magnet provided in the switch case of the braking switch 18 15 separated from a reed switch. Thus, the reed switch turned OFF, and the rotation of the motor 10 is stopped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric bicycle. More specifically, when a driving force is applied to a wheel by a wheel driving motor using a battery as a power source, the vehicle can run without a pedal (motor running). When you stop driving the motor, you can step on the pedal to run (pedal running).
In addition, the motor drive power is used as an auxiliary force during pedal travel (motor-assisted pedal travel).
The present invention relates to an electric bicycle that can be used.

[0002]

2. Description of the Related Art Heretofore, as an electric bicycle of this type, there has been known an electric bicycle provided with a wheel driving motor which uses a battery as a power source, and the wheels are driven by the driving force of the motor. The braking of the wheels in such an electric bicycle is performed by grasping a brake lever provided on a handle portion to pull up a brake wire connected to the brake lever and pressing a brake shoe connected to the brake wire to the wheel.

[0003]

In such an electric bicycle, when the brake operation is performed while the motor is traveling or when the pedal is combined with the motor, the motor continues to rotate and the wheels are rotating. There is a possibility that not only an abnormal load will be applied to the motor but also the life of the motor will be shortened, but the wear of the brake shoes will be severely shortened and the life will be shortened, and further, the braking distance of the electric bicycle will be long and a safety problem will occur.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a wheel driving motor which uses a battery as a power source, an accelerator device which is electrically connected to the motor and adjusts the driving force thereof, and a rotating wheel is braked. A brake device is further provided, and when the brake device performs a brake operation when driving the motor, the electrical connection between the accelerator device and the motor is turned off, and when the brake operation is released, the electrical connection between the accelerator device and the motor is established. It is an electric bicycle equipped with a switch that turns on.

Here, the wheel driving motor may be for driving the front wheels or for driving the rear wheels. The motor is driven by a rechargeable dry battery, a rechargeable storage battery, a non-rechargeable dry battery, or the like. As the brake device, for example, a device provided with a brake lever provided on the handle portion, a brake wire connected to the brake lever, and a brake band or a brake shoe connected to the brake wire is used. The brake switch is, for example, turned on / off by the movement of the brake wire of the brake device.
A reed switch or micro switch is used.

[0006]

The brake switch of the brake device for the electric bicycle according to the present invention is activated by the brake operation and the release of the operation when the motor is driven. That is, when the brake operation is performed, the electrical connection between the accelerator device and the motor is turned off to stop the rotation of the motor. When the brake operation is released, the electric connection between the accelerator device and the motor is turned on to rotate the motor.

This brake switch includes a switch case accommodating a part of the front brake wire and a part of the rear brake wire, a frame fixed inside the switch case, and a lead provided inside the frame. A switch or a micro switch is preferable. In such a case, it is possible to prevent the reed switch or the micro switch from malfunctioning due to dust or water.

The brake switch is also preferably constructed as follows. That is, the brake switch is provided on the handle portion of the bicycle so as to extend vertically, and a switch case in which a part of the front brake wire and a part of the rear brake wire are accommodated and a frame fixed inside the switch case. And a reed switch provided inside the frame, wherein the frame has a rear wall portion that extends vertically and an upper wall portion that extends vertically forward from the upper and lower ends of the rear wall portion, respectively. And a lower wall portion, and a left wall portion and a right wall portion that extend vertically to the front and are connected to the left edge and the right edge of the rear wall portion, respectively,
It is preferable that the left wall portion and the right wall portion are formed inside the upper wall portion and the lower wall portion. When the brake switch is configured in this way, at least one of the front brake wire and the rear brake wire is pulled up by the brake operation, and the frame may be deformed even when upward force is applied to the frame. Can be prevented.

The brake switch is also preferably constructed as follows. That is, the brake switch includes a switch case in which a part of the front brake wire and a part of the rear brake wire are housed, a frame fixed inside the switch case, and a square cross section fixed in the frame. A certain guide plate and a slide plate slidably attached to the guide plate and provided with a rectangular through hole for fitting the guide plate are provided, and the guide plate is fitted into the through hole of the slide plate. Is preferred. When the brake switch is configured as described above, it is possible to prevent the guide plate from rotating around its axis and preventing the slide plate from coming out of the predetermined position.

The brake switch is also preferably constructed as follows. That is, the brake switch includes a switch case in which a part of the front brake wire and a part of the rear brake wire are housed, a frame fixed inside the switch case, a guide plate fixed to the frame, A slide plate slidably attached to the guide plate, a magnet attached to the slide plate, a reed switch provided so as to face the magnet, and a spring member for urging the slide plate to fix it to the frame. And a front brake wire and a rear brake wire, respectively, and slides the slide plate against the biasing force of the spring member when at least one of the front brake wire and the rear brake wire is pulled by a brake operation. And thereby move the magnet away from the reed switch Preferably one having an actuating member. When the brake switch is configured in this way, when the front brake wire and / or the rear brake wire is pulled by the brake operation, the magnet moves away from the reed switch, and the accelerator device and the wheel drive motor are electrically connected. Can be turned off.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to one embodiment shown in the drawings. The present invention is not limited to this.

In FIG. 1, an electric bicycle P is equipped with a rear wheel drive motor 1, an accelerator device 2 and front and rear brake devices 3 and 4. The motor 1 is arranged in a disk-shaped casing 6 provided in the center of the rear wheel 5. The accelerator device 2 includes an accelerator grip 2a rotatably provided on the right end of the handlebar 7. The accelerator device 2 is electrically connected to the motor 1 and adjusts the driving force of the motor 1 by a rotating operation.

The front brake device 3 includes a front brake lever 8 provided below the right end of the handlebar 7, a front brake wire 9 connected to the front brake lever 8, and a front brake connected to the front brake wire 9. And a band 10. The rear brake device 4 includes a rear brake lever 11 provided below the left end of the handlebar 7, a rear brake wire 12 connected to the rear brake lever 11, and a rear brake band 13 connected to the rear brake wire 12. Is equipped with.

Above the rear wheel 5 of the electric bicycle P, a battery section 14 serving as a power source of the motor 1 is provided. The battery unit 14 includes a frame 15, a battery case 16 slidably attached to the frame 15,
It is mainly composed of 20 single-type rechargeable dry batteries (1.2V × 20 = 24V) housed inside the battery case 16.

A brake switch 18 is provided in front of the upper end of the front fork 17. As shown in FIGS. 2 to 6, the brake switch 18 includes a switch case 19 having a vertically long rectangular parallelepiped shape, a box-shaped frame 20 fitted and fixed in the switch case 19, and a frame 2.
Fixed to 0, a rectangular guide plate 21 having a rectangular cross section and vertically elongated, a cross-shaped slide plate 22 vertically slidably attached to the guide plate 21, and an upper part of the guide plate 21, A coil spring 23 that urges the slide plate 22 downward to contact the lower wall portion 20a of the frame 20, two hollow wire adjusting members 24 and 24 screwed to the upper wall portion 20b of the frame 20, and a wire. Front inner wire 9 passed through the adjusting member 24
a and the operating ring 26 on the left side, which are fixed to the rear inner wire 12a and the rear inner wire 12a, respectively.
It has and.

The switch case 19 can be divided into two parts, a front case 19a and a rear case 19b. The front case 19a and the rear case 19 are formed by two upper and lower screws 27, 27.
and b are integrated. The frame 20 includes a rear wall portion 20c extending vertically, an upper wall portion 20b and a lower wall portion 20a, which are connected to the upper end and the lower end of the rear wall portion 20c and extend vertically forward, and the left edge and the right edge of the rear wall portion 20c. It is composed of a left wall portion 20d and a right wall portion 20e which are respectively connected to the edges and extend vertically to the front. The left wall portion 20d and the right wall portion 20e are the upper wall portion 20b and the lower wall portion 20a.
It is formed so that it may be located inside.

Both upper and lower end portions of the guide plate 21 are fitted in through holes 20f and 20g provided in the upper wall portion 20b and the lower wall portion 20a of the frame 20, respectively. The slide plate 22 has an upper wall 22 that protrudes forward.
It has a and the lower wall part 22b. And the upper wall 2
2a and the lower wall portion 22b each have a rectangular through hole 22.
c. 22d are provided, and these through holes 22c, 22d are provided.
A guide plate 21 is fitted in the inside in a penetrating manner.

The operating ring 25 on the right side is a slide plate 22.
Is located below the right arm 22e. The left operation ring 26 is located below the left arm 22f of the slide plate 22. Each of the operating rings 25 and 26 is fixed to the front inner wire 9a and the rear inner wire 12a by a lock nut 28. In addition, 9b is an outer tube of the front brake wire 9, and 12b is an outer tube of the rear brake wire 12.

The brake switch 18 is further attached to the central portion of the rear surface of the slide plate 22, one magnet 29 extending vertically, and a circuit board 30 attached to the rear wall portion 20c of the frame 20 so as to face the magnet 29. One reed switch 31 installed on the left and right
It has and. The reed switch 31 is a hermetically sealed type having a moisture proof property.

The reed switch 31 is turned on when the front inner wire 9a and / or the rear inner wire 12a is not pulled upward, that is, when the magnet 29 faces the reed switch 31. Then, from the same state, the front inner wire 9a and / or the rear inner wire 12a is pulled upward and the slide plate 2
When the magnet 2 moves upward and the magnet 29 is separated from the reed switch 31 (the state shown in FIG. 5), the magnet 2 is turned off.

The circuit board 30 has two lead wires 32.3.
3 is connected to a control board 50 in a power switch 40 described later. These lead wires 32
33 is contained in the outer tube 34.

Next, the power switch 40 of the electric bicycle P will be described. In FIG. 7, the power switch 4
0 is provided at the center of the handlebar 7. That is, the power switch 40 includes an upper case 41 and a lower case 42, as shown in FIGS.

The power switch 40 further includes an upper case 41.
A key lock part 43 having a key groove 43a provided on the right side of the table, a plate-like cam 44 integrally provided under the key lock part 43, a magnet 45 attached to the lower surface of the cam 44, and a key. A power key 46 inserted into the key groove 43a of the lock portion 43, a switch board 47 horizontally provided on the right side in the lower case 42, and a switch board 47.
Two sealed reed switches 48 and 49 provided on the upper surface of the lower case 42 and having a moisture-proof property, and a control board 50 horizontally provided on the left side in the lower case 42.

A dampproofing agent is applied to the entire surface of the switch substrate 47. The control board 50 is the switch board 47.
It is located higher than. In addition, in FIG.
Reference numeral 1 denotes terminals of lead wires 32 and 33 extending from the circuit board 30 in the brake switch 18. The terminal 51 is connected to the control board 50.

Inside the power switch 40 is an upper case 41.
Vertical upper case rib 4 provided on the lower surface of the base plate so as to project downward.
1a and a vertical lower case rib 42a which is provided on the upper surface of the lower case 42 so as to project upward, and is divided into two left and right chambers. That is, the upper case rib 41a is the upper case 4
1 is provided over the entire width of the lower surface. Further, the lower case rib 42a is provided over the entire width of the lower surface of the lower case 42. The upper case rib 41a is located on the right side of the lower case rib 42a, and the lower portion of the upper case rib 41a extends along the upper portion of the lower case rib 42a. The lower case 42 has a water drain hole 42 b below the switch board 47.

In the power switch 40, when water such as rainwater or car wash water enters the inside of the right chamber through the key groove 43a, the water adheres to the upper surface of the cam 44 and the upper surface of the switch board 47. The water shaken off by the rotation of the cam 44 does not enter the left chamber that is blocked by the upper case rib 41a and the lower case rib 42a, flows down, and then flows out through the water drain hole 42b.

Therefore, in the power switch 40, there is no possibility that water will adhere to the control board 50. Further, since the reed switches 48 and 49 have a moisture proof property, and the switch substrate 47 is coated with a moisture proof agent on its entire surface, the switch mechanism is corroded by water, or the wiring portion is short-circuited or disconnected. There is no danger of

Further, in the power switch 40, lead wires 52, 52.5 connected to the switch board 47 are connected.
In order to avoid the space in which the cam 44 rotates, 2 passes under the switch substrate 47 and then through the space 53 partially widened by the upper case rib 41a, and then the control substrate 5
It is connected to 0. With such a configuration, the risk of disconnection of the lead wires 52, 52, 52 is reduced.

Next, the accelerator device 2 of the electric bicycle P will be described. 10 to 12, the accelerator grip 2a of the accelerator device 2 is attached to the grip core 55 and is rotatable with the grip core 55 around the axis of the handlebar 7. Accelerator device 2
Further, a coil spring 56 for returning the accelerator grip 2a to the rest position, one arc-shaped magnet 57 partially embedded in the disc portion 55a of the grip core 55, and an upper half portion of the disc portion 55a. It is provided with four moisture-proof sealed reed switches 59, 59, 59, 59, 59 provided on the opposing horseshoe-shaped printed circuit board 58.

Four reed switches 59, 59, 59,
59 are arranged as shown in FIG. 11, and these are turned on / off by a magnet 57 that rotates together with the accelerator grip 2a. When these are turned on, the reed switch 59 near the magnet 57 and the reed switch 59 far from the magnet 57 can be gradually increased in rotation speed of the motor 1.

As shown in FIGS. 11 and 12, the case 60 accommodating the disk portion 55a and the printed circuit board 58 is an upper case 6 arranged on the upper half surface of the handlebar 7.
0a and a lower case 60b which is arranged on the lower half surface of the handlebar 7 so as to face the upper case 60a and is screwed to the upper case 60. The coil spring 56 has one end 56a fitted and fixed in a mounting recess of the grip core 55, and the other end 56b fitted and fixed in a mounting recess of the lower case 60b from above. Most of the printed circuit board 58 is located above the joint between the upper case 60a and the lower case 60b. Drain hole 6 in lower case 60b
0c is provided.

Lead wire 61 from the printed circuit board 58
62 is taken out from the joint between the upper case 60a and the lower case 60b. 63 is a lead wire 61/62
It is the outer tube of. Note that FIG. 13 is an exploded perspective view of the accelerator device 2.

In this accelerator device 2, the upper case 60a, the lower case 60b, and the printed circuit board 58 may be set only in the vertical direction when assembling, and the lead wires 61 and 62 from the printed circuit board 58 may be set upward. Since it can be taken out from the joint between the case 60a and the lower case 60b, the assembling work is easy. Further, most of the printed circuit board 58 is the upper case 60a.
Since it is located above the joint between the lower case 60b and the lower case 60b, it is possible to prevent a poor electrical connection due to the intrusion of water into the case 60.

The operation of the brake switch 18 will be described below. Reed switch 3 when power switch 40 is ON
When 1 is turned on, the motor 1 is rotated by operating the accelerator grip 2a of the accelerator device 2, and the rear wheels 5 are rotated, so that the electric bicycle P runs on the motor.

In this state, when the rear brake lever 11 is gripped to perform a braking operation, the inner wire 1 of the rear brake wire 12 is, as shown in FIGS. 4 and 5.
2a is pulled up. Due to such movement of the inner wire 12a, the left operation ring 26 moves upward, and pulls the slide plate 22 upward against the biasing force of the coil spring 23. Then, the magnet 29 moves away from the reed switch 31 and the reed switch 31 is turned off.
Then, the rotation of the motor 1 is stopped. At this time, the rear brake band 13 connected to the inner wire 12a of the rear brake wire 12 is pressed against the shaft 92 of the rear wheel 5, and the rotation of the rear wheel 5 is stopped.

A motor 1 based on such a brake operation
To stop the rotation of, hold only the front brake lever 8,
Alternatively, the rear brake lever 11 and the front brake lever 8
You can do the same by holding at the same time.

Therefore, according to this electric bicycle P,
Since an abnormal load is not applied to the motor 1 by the brake operation, the life of the motor 1 is not shortened, and the wear of the brake band can be suppressed. Further, since the braking distance of the electric bicycle P is shorter than that of the conventional one, it is possible to prevent a safety problem.

Next, the structure of the electric bicycle P near the motor 1 will be described. 71 in FIGS. 14 to 17
Is a donut plate-shaped brush holder. Two plate-shaped terminals 72 are provided on a part of the periphery of the brush holder 71.
It is provided so as to project inward. Four substantially cross-shaped brush plates 74 are attached to the brush holder 71 at equal intervals.

Each terminal 72 has two lead wires 73.
Each end 73a and 73a of 73 is screwed.
The other end 73b of each lead wire 73 is screwed into a mounting hole 74b of the brush plate 74. Each brush plate 7
A brush sleeve 75 is caulked to the position 4. A rectangular parallelepiped brush 76 is slidably inserted into each brush sleeve 75.

A coil spring 7 is provided in each brush sleeve 75.
7 are arranged. Each coil spring 77 urges the brush 76 toward the center of the brush holder 71. Reference numeral 78 is a spring pressing plate. Brush lead 7 on each brush 76
9 is attached. One end 79a of each brush lead wire 79 is screwed into a mounting hole 74a of the brush plate 74 in which the brush 76 is arranged.

When replacing each brush 76, the spring pressing plate 78 and the coil spring 77 may be removed, and then the brush lead wire 79 may be removed from the brush plate 74.

In this electric bicycle P, the lead wire 7
3 and the brush lead wire 79 are provided as described above, the replacement work of the brush 76 can be facilitated and the connection mistake of the lead wire 79 at the time of replacement of the brush 76 can be prevented. Further, since the plate-shaped terminal 72 is provided on a part of the peripheral edge of the brush holder 71, it is possible to eliminate the contact trouble with the rotating object due to the positional displacement and to easily fix the lead wire 73 with a screw. be able to.

Next, the arrangement of various shafts, various pulleys and various belts for transmitting the driving force of the motor 1 will be described. 18 to 20, the motor 1
Driving force of the pulley 8 attached to the shaft 81
2, large pulley 85 and small pulley 86 attached to belt 83, shaft 84, belt 87, shaft 88
Is transmitted to the large pulley 89 and the small pulley 90 attached to the belt, the belt 91, and the pulley 93 attached to the rear wheel shaft 92.

A bearing 94 combined with a large pulley 89, a roller clutch (one-way clutch) 95, and a bearing 96 combined with a small pulley 90 are attached to the shaft 88. Therefore, the driving force of the motor 1 is
It is transmitted in one direction from the large pulley 89 to the small pulley 90. Since the bearing 94, the roller clutch 95, and the bearing 96 are arranged in a straight line in this manner, compared to the case where the roller clutch is mounted around the bearing,
Workability and assemblability are improved.

Both the shaft 81 and the shaft 88 are fixed. The shaft 84 is movable. The tension of the belt 83 and the belt 87 is adjusted by moving the shaft 84. Belt 9
The tension of No. 1 is adjusted by the belt pressing member 97. That is, the belt pressing member 97 includes a pressing roller 97a that is rotatably pressed by the belt 87, and a support arm 97b that movably supports the pressing roller 97a. The support arm 97b is rotatable about a rotation shaft 97c, and is fixed by a screw 97d at a desired rotation position. Reference numeral 98 is an adjusting member for adjusting the belt pressing member 97.

As described above, the three belts 83, 87,
Since the tension adjustment of 91 is performed by the two fixed shafts 81 and 88 and the one movable shaft 84, it can be easily and accurately performed.

[0047]

As described above, in the electric bicycle according to claim 1 of the present invention, when the brake device performs the brake operation when the motor is driven, the electric connection between the accelerator device and the motor is turned off, and the brake is applied. Since the brake switch is provided to turn on the electrical connection between the accelerator device and the motor when the operation is released, if the brake operation is performed while the motor is running or when the pedal is used with the motor, the driving force of the motor is not transmitted to the wheels. Therefore, the brake operation does not apply an abnormal load to the wheel drive motor,
There is no risk of shortening the life of the motor. Further, since the braking distance is shorter than that of the conventional one, it is possible to prevent the possibility of a safety problem.

The electric bicycle according to claim 2 of the present invention is
Since it is configured as described above, in addition to the effect of the electric bicycle according to the first aspect, it is possible to prevent the reed switch from malfunctioning due to dust or water.

An electric bicycle according to claim 3 of the present invention is
With the above configuration, in addition to the effect achieved by the electric bicycle according to claim 1, when one of the front brake wire and the rear brake wire is pulled by the brake operation, the magnet moves away from the reed switch, and the accelerator device. The electrical connection between the wheel drive motor and the wheel drive motor can be turned off.

An electric bicycle according to claim 4 of the present invention is
With the above structure, in addition to the effect of the electric bicycle according to claim 1, when at least one of the front brake wire and the rear brake wire is pulled by the brake operation, the magnet moves away from the reed switch and the accelerator pedal is released. The electrical connection between the device and the wheel drive motor can be turned off.

An electric bicycle according to claim 5 of the present invention is
Since the frame in the switch case is configured as described above, in addition to the effect obtained by the electric bicycle according to claim 1, the brake wire is pulled upward by the brake operation, and the upward force is applied to the frame. Also, it is possible to prevent the frame from being deformed.

An electric bicycle according to claim 6 of the present invention is
Since the guide plate and the slide plate in the switch case are configured as described above, in addition to the effect obtained by the electric bicycle according to claim 1, the guide plate rotates about its axis to bring the slide plate into a predetermined position. It is possible to prevent the risk of coming off.

[Brief description of drawings]

FIG. 1 is an overall configuration explanatory view of an electric bicycle according to an embodiment of the present invention as viewed from the front.

FIG. 2 is a bottom view of a switch case of a brake switch in this electric bicycle.

FIG. 3 is a rear view of the brake switch.

FIG. 4 is a structural explanatory view of the inside of the brake switch as seen from the front.

5 is a cross-sectional view taken along the line VV of FIG.

6 is a sectional view taken along line VI-VI in FIG.

FIG. 7 is a structural explanatory view showing the inside of a power switch in this electric bicycle.

FIG. 8 is a structural explanatory view showing the inside of the upper case of the power switch.

FIG. 9 is a structural explanatory view showing the inside of the lower case of the power switch.

FIG. 10 is a structural explanatory view of the inside of the accelerator device of this electric bicycle as viewed from the front.

FIG. 11 is a structural explanatory view of the inside of the accelerator device as seen from a side surface.

FIG. 12 is a structural explanatory view of the case of the accelerator device as seen from a side surface.

FIG. 13 is an exploded perspective view of the accelerator device.

FIG. 14 is a structural explanatory view of the inside of the casing of the rear wheel of this electric bicycle as viewed from the side.

FIG. 15 is a structural explanatory view of the inside of a motor portion inside the casing as seen from a side surface.

FIG. 16 is a structural explanatory view of the inside of the motor portion in the casing as seen from the front.

FIG. 17 is an exploded perspective view of a motor portion inside the casing.

FIG. 18 is a structural explanatory view of the inside of the casing as seen from the front.

19 is a sectional view taken along the line AA of FIG.

FIG. 20 is a simplified configuration explanatory view of the inside of the casing as seen from the front.

[Explanation of symbols]

 1 Wheel Drive Motor 2 Accelerator Device 3 Front Brake Device 4 Rear Brake Device 5 Rear Wheel 7 Handlebar 8 Front Brake Lever 9 Front Brake Wire 9a Front Inner Wire 10 Front Brake Band 11 Rear Brake Lever 12 Rear Brake Wire 12a Rear Inner Wire 13 Rear Brake Band 18 Brake Switch 19 Switch Case 20 Frame 21 Guide Plate 22 Slide Plate 23 Coil Spring (Spring Member) 25 Actuation Ring (Actuation Member) 26 Actuation Ring (Actuation Member) 29 Magnet 30 Circuit Board 31 Reed Switch

Claims (6)

[Claims] 1. A wheel drive motor powered by a battery,
It is equipped with an accelerator device that is electrically connected to this motor and that adjusts its driving force, and a brake device that brakes the rotating wheels. When the brake device performs a braking operation when the motor is driven, the accelerator device and the motor An electric bicycle comprising a brake switch that turns off the electrical connection between the accelerator device and the motor when the brake operation is released. 2. The braking device comprises a front band brake for the front wheels and a rear band brake for the rear wheels, each of the front and rear band brakes being provided with a brake lever provided on a handle portion of the bicycle, A brake wire connected to the brake lever and a brake band connected to this brake wire are provided, and the brake switch has a switch case in which a part of the front brake wire and a part of the rear brake wire are housed,
The electric bicycle according to claim 1, further comprising a frame fixed inside the switch case, and a reed switch provided inside the frame. 3. The brake device comprises a front band brake for the front wheels and a rear band brake for the rear wheels, each of the front and rear band brakes having a brake lever provided on a handle portion of the bicycle, and A brake wire connected to the brake lever and a brake band connected to the brake wire are provided, and the brake switch has a switch case in which a part of one brake wire is housed, and a frame fixed inside the switch case, A guide plate fixed to this frame, a slide plate attached to this guide plate, a magnet attached to this slide plate, a reed switch provided so as to face the magnet, and a slide plate urging force. The spring member that is pressed against the frame and the one of the brake wires. And an actuating member that slides the slide plate against the biasing force of the spring member when the one brake wire is pulled by a brake operation, thereby moving the magnet away from the reed switch. The electric bicycle according to claim 1. 4. The brake device comprises a front band brake for the front wheels and a rear band brake for the rear wheels, each of the front and rear band brakes being a brake lever provided on a handle portion of the bicycle. , A brake wire connected to the brake lever and a brake band connected to the brake wire, and the brake switch includes a switch case in which a part of the front brake wire and a part of the rear brake wire are housed,
A frame fixed to the inside of this switch case, a guide plate fixed to this frame, a slide plate attached to this guide plate, a magnet attached to this slide plate, and so as to face this magnet. It is fixed to the reed switch provided, the spring member that urges the slide plate to press it against the frame, and the front and rear brake wires, and at least one of the front and rear brake wires is pulled by the braking operation. The electric bicycle according to claim 1, further comprising: an actuating member that slides the slide plate against the biasing force of the spring member when it is struck, thereby moving the magnet away from the reed switch. 5. A frame includes a rear wall portion extending vertically, an upper wall portion and a lower wall portion extending vertically forwardly connected to upper and lower ends of the rear wall portion, and a left edge and a right edge of the rear wall portion. 3. The electric bicycle according to claim 2, further comprising a left wall portion and a right wall portion that are connected to each other and extend vertically to the front, and the left wall portion and the right wall portion are located inside the upper wall portion and the lower wall portion. . 6. The guide plate according to claim 3, wherein the guide plate has a rectangular cross section, the slide plate is provided with a rectangular through hole for fitting the guide plate, and the guide plate is fitted into the through hole of the slide plate. The electric bicycle according to any one of the above.