JP2006298129A - Motorcycle with retractable wheel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a motorcycle with retractable wheels reducing the fatigue of a driver and preventing falling-down at the time of stopping, to ease excessive characteristic of traveling feeling change generated at switching to a retracting state or a supporting state, and to notify a driver of the state. <P>SOLUTION: A driving motor mechanism with a worm wheel speed reducer and a supporting arm attached to a rotating shaft of a mounting base are transmitted by a toothed belt, and these are equipped at right and left of the motorcycle with retractable wheels. A operator selectively carries out retracting and supporting by a hand switch under a fixed speed, and need not make feet touch on the ground during stopping. A retractable wheel structure is equipped with a shock absorbing device. The excessive characteristic of the traveling feeling change at the time of switching retracting and supporting is eased, and each state of retracting, operating, and supporting is reported by an indicating lamp. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to the prevention of falls and the reduction of driving fatigue while a motorcycle is stopped.

  Although it is well known that when a vehicle is stopped, it is necessary to support the vehicle body with a foot on the ground as a characteristic of the structure of the two-wheeled vehicle, but fatigue due to frequent stoppages accompanying road signal display while driving is sometimes normal Exceeds fatigue caused by driving. The recent traffic congestion that extends to the suburbs further contributes to this.

  In addition to the above, various auxiliary wheels are known, including measures aimed at stable driving at low speeds, but the vehicle is self-supporting, eliminating the impact from thrust and undulation from the road surface that can be received by the wheels that are swung left and right In the realization of the vehicle, the use of highly automatic actuators and the accompanying increase in the size of structures are expected, and it is expected to extend to the form modification of the vehicle body skeleton, or those that are omitted from the road surface It is a structure that directly receives external disturbances, and it is expected that the members will be enlarged to ensure strength.

In this two-wheeled motorcycle with storage wheels, the structural members can be miniaturized as much as possible by separating drive parts and support loads, and the driver's foot can be freely selected when stopped.
JP 2001-253376 A JP 2003-276665 A

  Stops are frequently repeated during two-wheeled vehicle operation, and the driver has obliged to support his / her feet at extremely low speeds, but if there is no particular danger, it can be omitted and wheel support Eliminates driver fatigue and anxiety and instability of the vehicle body by relaxing excessive characteristics of the driving sensation that changes with conditions.

  A pair of constantly retractable wheels that can only be used at safe speeds (eg about 10 to 30 km / h) are equipped on the left and right sides of the vehicle body, and the driver switches to the vehicle body support state by hand switch operation as necessary. Can be switched at any time by the same operation.

Regardless of whether the motorcycle is running straight or turning, the driver's own sense of equilibrium continues to be self-supporting, but during the deceleration toward the stop, the wheel is switched to a support state immediately after the wheel has landed. Shifts to the independence of the front and rear wheels and the wheels, and the running sensation changes due to the thrust from the road surface received by the wheels and the inclination of the road surface. Therefore, these excessive characteristics are alleviated by a shock absorber, and the driving discomfort is removed.

Since the drive mechanism position of the wheel is generally easy to match the passenger footrest position, the footrest function is relocated to the upper surface of the mechanism cover.

A speed sensor is incorporated in the control circuit of the retractable support switching drive motor to detect the speed and determine whether or not it can be switched to the support state.

A status indicator is provided to the driver. Storage, 2. 2. During storage 3. Support state Announcement of support in progress.

The fatigue and anxiety caused by the driver's own foot movement can be reduced, and the range of actions and opportunities for action can be expanded safely.

The basic configuration and structure is the same as that of an existing two-wheeled vehicle, and a two-wheeled vehicle configuration in which a storage wheel structure is added to the left and right of the body frame.

The hand switch is fixed near the left handle grip.

A status indicator is installed near the handlebar grip or near the vehicle speedometer where it can be easily recognized by the driver.

The wheel storage support drive motor control circuit is housed in the control box and fixed to the vehicle body as appropriate.

A storage wheel mounting base is installed on each of the left and right sides of the car body. The storage support drive motor, the rotating shaft on which the support arm of the wheel rotates, and the mechanism stop shape that receives the vehicle body support load are installed. A reduction and transmission mechanism that has toothed pulleys attached to the motor shaft and support arm, and connects them with a toothed belt.

Wheel drive and support switching power are the same, and a drive motor mechanism that can rotate forward and reverse and via a worm wheel reducer.

The power stop when the wheel is retracted or supported is the position depending on the shape of the support arm and the limit switch.

The wheel retracted state is a predetermined stop position based on the holding force inherent to the drive motor mechanism and the mechanism stop shape of the support arm and the base.

The wheel support state is a predetermined stop position by the support arm and the mechanism stop shape of the base after passing through the ground angle thought point while descending due to the support arm rotating motion.

Suspension structure that cushions the swing arm at the tip of the support arm with a shock absorber.

The storage support drive parts are equipped with protective covers on each of the left and right sides, and a part of the shape functions as a passenger footrest.

  Support operation while the vehicle is stopped: The driver landed in the riding position. The wheel can be switched to the support state by operating the hand switch, and after confirming the support state by the indicator lamp, the foot can be returned to the footrest. Alternatively, you can get off the vehicle and move the vehicle by yourself.

  Storage operation while the vehicle is stopped: The driver can land with his feet in the riding position, switch the wheel to the storage state by operating the hand switch, and start the vehicle after confirming the storage state with the indicator light.

Support operation during travel: The driver can stop the vehicle as it is after switching the wheel to the support state by operating the hand switch and confirming the support state with the indicator light within the safe speed of deceleration toward the stop.

Storage operation during travel: The driver recognizes the vehicle body balance due to his / her driving operation during acceleration after departure, switches the wheel to storage by operating the hand switch, confirms the storage state with the indicator light, and continues traveling as it is Possible.

  Two-wheeled vehicles can be used for potential customers who want to drive motorcycles but had to abandon the two-wheeled vehicle when stopping. As a result, continuous demand for motorcycles is expected.

Side view showing a motorcycle according to the present invention Front view showing a motorcycle according to the present invention Side view of the retracted state Side view of the support state Electrical system diagram

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base 2 Drive motor 3 Toothed pulley small 4 Toothed belt 5 Toothed pulley large 6 Support arm 7 Swing arm 8 Shock absorber 9 Wheel 10 Mechanism cover 11 Vehicle speed sensor 12 Hand switch 13 Indicator light 14 Control box

Claims (6)

When traveling, the driving feeling of an existing motorcycle is secured. On the other hand, a two-wheeled vehicle with a storage wheel, wherein the vehicle body can be supported or not supported by the driver's own foot when the vehicle is stopped. A base motor and a drive motor capable of rotating in the forward and reverse directions decelerated by a worm wheel gear, a toothed pulley fixed thereto, a toothed pulley fixed to a supporting arm, a toothed belt, and a supporting arm. A two-wheeled vehicle with a storage wheel that includes a swing arm and wheels, and has a function of switching to a wheel storage and support state by installing a pair of them on the left and right. Holding of the wheel retracted state and support state is solved by the self-holding force of the drive motor mechanism, but the vehicle weight burden in the support state is after passing the ground angle thought point caused by the rotational movement of the support arm itself in switching from storage to support. A two-wheeled vehicle with a storage wheel, characterized by a mechanism stop disposed on the mounting base. A two-wheeled vehicle with a storage wheel having a function of stopping operation of the wheel in the storage and support state by a control operation of the drive motor and a function of prohibiting operation in a dangerous speed range by speed detection A two-wheeled vehicle with a storage wheel having a shock relief function of road surface undulation by a shock absorber in the wheel suspension structure.   A two-wheeled vehicle with a storage wheel that notifies the driver of the storage state, during switching, and the vehicle body support state by means of an indicator light.