JPH0820296A - Motor-driven bicycle - Google Patents

Abstract

PURPOSE:To provide a motor-driven bicycle lightweight so as to enable even an aged person or a woman to handle easily and mount/dismount in an easy posture while maintaining the origin of a bicycle as much as possible without being heavily equipped like a motor-bike. CONSTITUTION:A battery 1 and a driving motor M are disposed at a body frame part formed of a front wheel frame 28, a saddle frame 22 and a rear wheel frame 23, and a rear axle 17 is driven by the driving motor M through a power transmission case 2. The start switch 9 of the driving motor M is disposed at the upper part of the front wheel frame 28 forming the body frame and in a lower position between lateral handles 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bicycle which has been conventionally stepped on and driven, and which is electrically driven by a simple mechanism.

[0002]

2. Description of the Related Art Conventionally, a technique relating to an electric bicycle has been known. For example, JP-A-56-399
Japanese Unexamined Patent Publication No. 62-273182 discloses a technique of providing a continuously variable transmission mechanism on the rear wheels of Japanese Patent Publication No. 80 and a bicycle with a motor.
Techniques such as those described in Japanese Patent Laid-Open Publication No. Sho 12-12988 are known. In addition, motorbikes have been popular as technology for driving bicycles from the past, but with the widespread use of motorbikes, they gradually become heavy equipment. In such a case, the weight has become so large that it cannot be easily caused.

[0003]

The present invention is the same in that the conventional bicycle is driven by another power source, but it is possible to implement the bicycle instead of making it heavy equipment such as a motorbike. The purpose of the present invention is to provide an electric bicycle that is light and easy to handle for old people and women, while maintaining the origin of the bicycle. Further, a start switch is arranged at a lower position between the left and right handles 6.5 on the upper part of the front wheel frame 28 so that an operator sitting on a saddle can easily see it. Also, while sitting on the saddle, holding either the left or right handle,
By inserting a key into the start switch 9 so that it can be operated, the user can easily get in and out of the vehicle.

[0004]

The object of the present invention is as described above. Next, the structure for achieving the object will be described. The battery 1 and the drive motor M are connected to the front wheel frame 2.
8, a saddle frame 22, and a rear wheel frame 23 are arranged in a frame portion of a body frame, and the drive motor M is configured to drive the rear axle 15 via the power transmission case 2. The start switch of the drive motor M 9 is arranged at an upper portion of the front wheel frame 28 constituting the body frame frame and at a lower position between the left and right handles 6.5.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The object and structure of the present invention are as described above. Next, the structure of the embodiment shown in the accompanying drawings will be described.
2 is a side view of the electric bicycle of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is an electric circuit diagram. The overall structure of the present invention follows the structure of a conventional bicycle, and as for the body frame frame, the front frame 28, the lower frame 25, the saddle frame 22, and the rear frame 23 following the front frame 28, as in the conventional structure. It is composed of.

The battery box A is arranged in a space surrounded by the front wheel frame 28, the lower frame 25 and the saddle frame 22, and the battery 1 and the variable resistor 11 are arranged inside. Further, on the upper surface of the battery box A, as shown in FIG.
A storage capacity meter 10 is arranged to support the remaining storage capacity of the battery 1, and a start switch 9 for inserting the start key 4 to start the drive motor M is arranged on the front wheel frame 28 thereon. .

The drive motor M driven by the battery 1 is arranged in a triangular and sturdy frame space surrounded by the saddle frame 22, the rear wheel frame 23 and the lower frame 25. The power transmission case 2 is interposed between the motor shaft and the rear axle 15. Inside the power transmission case 2, as shown in FIG. 3, the split pulley 13.1.
4 and the V-belt 2 are arranged in the continuously variable transmission. The rear wheels 17 are driven by the rotation after shifting by the continuously variable transmission in the power transmission case 2.

Further, as shown in FIG. 3, the transmission may be a transmission in which the rotation speed of the drive motor M is continuously variable by adjusting the resistance of the variable resistor 11.
And the right handle 5 is configured as a twist handle,
By twisting the right handle 5, the resistance of the variable resistor 11 can be adjusted via a wire, or the link 12 can be adjusted.
With this, the pulley diameters of the split pulleys 13 and 14 are adjusted to continuously change the speed. Further, the speed reducer 3 is interposed between the drive motor M and the power transmission case 2. The speed reduction device 3 reduces the rotation of the drive motor M to increase the drive torque.

In FIGS. 1 and 2, 16 is a front wheel, 21 is a saddle, 26 is a stand for stopping, and 27 is a saddle 2.
This is a step to put your feet while sitting on 1. Further, a front wheel brake grip 8 is arranged on the right handle 5 so that the front wheel 16 can be braked and operated with a fingertip while being gripped, and a rear wheel brake grip on which the rear wheel 17 can be braked on the left handle 6 as well. 7 is arranged. FIG.
When the front wheel brake grip 8 is operated, the braking friction device 18 presses the rim portion of the front wheel 16 to brake the front wheel 16, as shown in FIG. In addition, the braking friction device 1 is operated by operating the rear wheel brake grip 7.
The rear wheel 17 is braked by pressing 9 on the rib portion of the rear wheel 17. 30 is an alarm switch.

[0010]

Since the present invention is configured as described above, it has the following effects. First, battery 1
In the case of an electric bicycle equipped with the drive motor M and the starter motor M, the starting switch 9 is indispensable. However, it is not necessary to extend the starting switch 9 too close to the left and right steering wheels 6.5. The commonality of parts with the electric bicycle is lost. In the present invention, the front wheel frame 2
Since the starter switch 9 is arranged at a lower position between the left and right handles 6.5 on the upper part of 8, the operator can easily see the position while sitting on the saddle.
Secondly, while sitting on the saddle and holding either the left or right handle, the key can be inserted into the start switch 9 for operation, which makes it easier to get in and out of the vehicle. It was.

[Brief description of drawings]

FIG. 1 is a side view of an electric bicycle according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is an electric circuit diagram.

[Explanation of symbols]

 A battery box M drive motor 1 battery 2 power transmission case 3 speed reducer

Claims (1)

[Claims] 1. A battery 1, a drive motor M, a front wheel frame 28, a saddle frame 22, and a rear wheel frame 23.
The drive motor M is configured to drive the rear axle 15 via the power transmission case 2, and the start switch 9 of the drive motor M is
At the upper part of the front wheel frame 28 that constitutes the aircraft frame,
An electric bicycle characterized in that it is arranged at a lower position between the left and right handles 6.5.