JPS59109473A - Motorcycle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a scooter-type motorcycle, which can prevent the vehicle body from wobbling when starting and stopping, as well as when driving at low speeds, and which can prevent the vehicle from swaying when starting and stopping, as well as when driving at low speeds. The purpose of the present invention is to provide a motorcycle that is easy to operate and does not require a person to put his or her legs out.

That is, in order to achieve the above object, the present invention provides a pair of left and right auxiliary wheels on the lower surface of the vehicle body, located inside the width of the vehicle body, and these auxiliary wheels are driven onto the ground by a drive means provided on the vehicle body. It is characterized in that it is configured so that it can come into contact with and detach from the vehicle, and that it is retracted to the rear side in the direction of travel when detaching.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

In the figure, 1 is a frame that makes up the vehicle body, and this frame 1 includes a front fork 3 that pivotally supports the front #12, and a seat 4.
The bottom portion 5 is largely bent downward between the bottom portion 5 and a flat footrest plate 6 for resting the driver's legs.

The foot rest plate 6 is located at the front lower part of the seat 4, and a leg shield 7 is provided in front of the foot plate 6 to protect one leg from the wind. ing. Further, 9 is an engine unit that integrates an engine and a continuously variable transmission, and a rear wheel 10 is supported at the rear end of this engine unit 9. is left and right 1
A pair of support legs 11.12 are rotatably supported, and left and right auxiliary wheels 13 are attached to the tips of these support legs 11.12.
．． 14 is pivotally supported.

Auxiliary wheels 13 and 14 are located inside the maximum width (total width) t of the vehicle body,
In this embodiment, both the left and right sides of the leg shield 7 are located inside, and the support legs 11 and 12 are vertical as shown by the imaginary lines in FIG.
The support leg 11.12 is flipped up backward in the direction of travel and the auxiliary vehicle width 13.14 is moved away from the ground G. It has become. And one support leg each.

12 is always urged toward the retracted position by a return spring 15. Further, a pedal 16 as a driving means is pivotally supported on the footrest plate 6, and this pedal 16 is connected to the support legs 11 and 12 via an inner wire 17 of, for example, Bowden wire. Therefore, when the driver depresses this pedal 16, the inner wire 17 is pulled and the support leg 11.12 is pulled out to the use position against the biasing force of the spring 15, and the auxiliary vehicle ta1s
, J4 is grounded. Note that this auxiliary wheel 13, 1411'i contacts the ground between the front wheel 2 and the rear wheel 10, but as shown in FIG.
．． 14 to the rear Qxo is the distance H1t from auxiliary wheel 13.
The distance from 14 to the front width 2 is shorter than A t2, so the auxiliary vehicle width 13.14 is designed to touch the ground near the center of gravity of the swivel vehicle body on the engine unit 9 side.

Next, the operation of the above configuration will be explained.

When the driver depresses the pedal 16 on the footrest 6, the auxiliary wheels 13, 14 are pulled out from the storage position to the use position and come into contact with the ground G, resulting in a four-wheeled state. Then, press the throttle to 17) and start. When the vehicle speed reaches a predetermined value or higher, that is, at a speed that does not cause the vehicle to wobble, pedal 17).
release the pedal. Then, the auxiliary wheel 13°1
4 is a support leg II which is supported by the biasing force of a spring 15.

12 and is automatically stored in the storage position, and the vehicle returns to normal two-wheel driving. After this, when the vehicle speed is reduced to a predetermined speed or less by brake operation, when the pedal 16 is depressed again, the auxiliary vehicle width 13.14 is pulled out from the storage position and comes into contact with the ground G, resulting in a four-wheel state.

Therefore, during low-speed operation such as when starting or stopping, the vehicle is in a four-wheel state, so there is no risk of the vehicle body wobbling.

Moreover, if the pedal 16 is depressed, the auxiliary wheel 13.
Since the 14 is kept in contact with the ground, it can run at extremely low speeds, such as a person's walking speed, without wobbling, and it also has the advantage of being able to run easily without having to take out its legs every time it stops.

Furthermore, if a mechanism is provided that locks the pedal 16 in a depressed state, it can also be used as a stand.

In the above-described embodiment, the auxiliary wheels are pulled out and retracted manually by the driver, but the present invention is not limited to this, and as shown in FIG. An example will be shown in which the data is extracted and stored. That is, the supporting legs 11 and 12 are rotated between the use position and the storage position by a C motor 21 which is capable of forward and reverse rotation as a driving means, and this DC motor 2 is operated by a microconverter. It is rotated forward or reverse depending on the command signal from 22. A ξ pulse signal corresponding to the vehicle speed is inputted to the micro combinator 22 from a detection unit 23 that detects the vehicle speed, and the micro comb beater 22 is preset with this ξ pulse signal. If the vehicle speed indicated by this pulse signal is lower than the set value, a command signal is given to the DC motor 2 to draw the auxiliary wheels 13 and 14 to the use position, and conversely, the vehicle speed is lower than the set value. auxiliary vehicle 4a1 if it exceeds
A command signal for storing 3 and 14 in the storage position is sent to the DC motor 2.
It is designed to be given to no. and auxiliary wheels 13.1
The set value of the vehicle speed of the microcomputer 220 is changed between when the vehicle is pulled out and when it is stored so that the DC motor 2 is driven when the vehicle speed reaches the normal speed when the vehicle is stored.

According to such a configuration, the auxiliary wheels 13 and 14 are automatically pulled out and retracted according to the vehicle speed, so the driver only has to carry out driving operations as before; The system does not become complicated and safety is greatly improved.

As described in detail above, according to the present invention, a pair of left and right auxiliary wheels are provided on the lower surface of the vehicle body and are located inside the width of the vehicle body and are capable of approaching and separating from the ground iMj. When leaving the vehicle, it is stored at the rear in the direction of travel, so when driving at low speeds such as when starting or stopping, there is no risk of the vehicle swaying because it is in a four-wheel state, and there is no possibility that the vehicle will be temporarily stopped. There's no need to show your legs every time, right? 1. It has the advantage of being safer and easier to drive than ever before.

[Brief explanation of drawings]

Figures 1 to 100 show one embodiment of the present invention, with Figure 1 being a side view of the motorcycle, Figure 2 being a front view, and Figure 3 being a sectional view schematically showing the operating mechanism of the auxiliary wheel. , FIG. 4 is an explanatory diagram showing the positional relationship of wheels, and FIG. 5 is a schematic configuration diagram showing another embodiment of the present invention. 1... Vehicle body (frame), 6... Footrest date, 13.14... Auxiliary wheels, 16.21... Drive means (pedal, DC motor).

Claims (1)

[Claims] This is a motorcycle that has a footrest plate installed below the front of the seat in the vehicle body, and a pair of left and right auxiliary wheels are installed on the underside of the vehicle body, located inside the width of the vehicle body. It is characterized in that it is pivoted so that it can be raised and folded, and that it can come into contact with and detach from the ground by means of a drive means provided on the vehicle body, and in the disengaged state, it is retracted to the rear side in the direction of travel. Motorcycle.