JP2007176442A - Left-and-right two-wheeler - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a left-and-right two-wheeler capable of being applied to a racing car with good responsiveness. <P>SOLUTION: A right hand 75R grips a right handle grip 17R, while a left hand 75L does not grip a left handle grip 17L and grips an operation means 50. An accelerating operation is executed by a total action that a driver 70 shifts his body to the front and an accelerating lever of the operation means 50 is pushed down. A speed reduction operation is executed by a total action that the driver 70 shifts his body backward and the accelerating lever of the operation means is loosened. Since a radio controller is adopted as the operation means 50 and the driver 70 can operate the controller, while gripping the controller by the one hand, the driver 70 can grip the handle grip provided in a vehicle body by the other hand to hold his body in a better state in relation to the vehicle body. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a left and right two-wheeled vehicle that does not include auxiliary wheels.

As vehicles, two-wheeled vehicles, three-wheeled vehicles and four-wheeled vehicles have been widely put into practical use. Among these, two-wheeled vehicles are mainly front-rear two-wheeled vehicles equipped with front and rear wheels, but left and right two-wheeled vehicles equipped with left and right wheels and a travel control device thereof have also been proposed (see, for example, Patent Document 1).
JP 2004-359094 A (FIGS. 1 and 8)

In addition, driver operation means for left and right motorcycles has been proposed (see, for example, Patent Document 2).
Japanese Patent No. 3070015 (FIG. 8)

  In FIG. 8 of Patent Document 2, reference numerals 70a and 70b are DC servo motors, reference numerals 74a and 74b are wheels, reference numeral 76 is a battery, reference numeral 78 is a control unit, reference numeral 82 is a seat, reference numeral 84 is a tilt sensor, reference numeral 86 is It is a joystick.

Then, based on the inclination information detected by the inclination sensor 84, the control unit 78 controls the rotational speeds of the DC servo motors 70a and 70b to execute traveling.
That is, when the driver sitting on the seat 82 changes the sitting position, the seat 82 tilts forward or backward, and this tilt is detected by the tilt sensor 84, and the DC servo motors 70a and 70b are moved in the direction in which the tilt returns to zero. Increase or decrease the rotation speed of

  In addition, a tilt pseudo signal can be generated by the joystick 86, and the rotation speed of the DC servo motors 70a and 70b can be controlled by the control unit 78.

The left and right motorcycles of Patent Document 2 have the following problems.
Because the joystick needs to be held and the sitting position is changed while sitting on the seat, the driver's position change is small and the speed change is relatively gentle. Therefore, there is a limit to increasing the responsiveness. For example, when a race car competing for speed is targeted, an improvement is expected.
That is, a left and right two-wheeled vehicle excellent in responsiveness that can be applied to a race car is desired.

  It is an object of the present invention to provide a left and right two-wheeled vehicle that is applicable to race cars and has excellent responsiveness.

The invention according to claim 1 is a left and right two-wheeled vehicle that travels by driving left and right wheels on a vehicle body and driving these wheels with a drive source mounted on the vehicle body,
The left and right two-wheeled vehicle includes a driver position detecting means for detecting the weight shift of the driver, an operating means for generating operation command information by the driver's operation, the driver position information from the driver position detecting means and the operation In a left and right two-wheeled vehicle comprising a traveling control unit that receives operation command information from the means and determines the rotational speed of the left and right wheels to control the drive source,
The operation means is a wireless remote controller, and is configured so that the driver can operate while gripping with one hand, and so that the other hand of the driver can grip the vehicle body, The gripping portion is provided on the vehicle body.

The invention according to claim 2 is a left and right two-wheeled vehicle that travels by having left and right wheels on a vehicle body and driving these wheels with a drive source mounted on the vehicle body,
The left and right two-wheeled vehicle includes a driver position detecting means for detecting the weight shift of the driver, an operating means for generating operation command information by the driver's operation, the driver position information from the driver position detecting means and the operation In a left and right two-wheeled vehicle comprising a traveling control unit that receives operation command information from the means and determines the rotational speed of the left and right wheels to control the drive source,
The operation means is a wired remote controller, and a harness connecting the vehicle body and the remote controller can be pulled out from the vehicle body when receiving a pulling force less than a certain value, and when receiving a pulling force exceeding a certain value, the vehicle body It is characterized by the fact that it can no longer be pulled out from the vehicle and functions as a towline for the driver.

  In the first and second aspects of the invention, the operation means is a wireless or wired remote controller. Since the remote controller is movable, the driver who operates the remote controller can greatly change the posture. That is, large-scale weight shift is possible, and thus responsive running control can be obtained. Therefore, the left and right two-wheeled vehicle of the present invention can be applied to a race car.

  In addition, in the invention according to claim 1, the remote controller employs a wireless controller so that the driver can operate while holding it with one hand. Since the driver can grip the grip portion provided on the vehicle body with the other hand, the driver can hold the body better with respect to the vehicle body.

  Further, in the invention according to claim 2, the remote controller is a wired controller, and the harness connecting the vehicle body and the remote controller can be pulled out from the vehicle body when receiving a pulling force less than a certain value. It was configured to be unable to be pulled out of the vehicle body when receiving pulling force and to act as a pulling rope for the driver.

  Since the harness plays the role of a towline, the body can be held well with respect to the vehicle body even if the driver changes his posture. Since the length of the harness can be freely changed, the driver can change his / her posture more greatly. As a result, a larger-scale weight shift is possible, and a more responsive running control can be obtained.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is an external view of a left and right two-wheeled vehicle according to the present invention. A left and right two-wheeled vehicle 10 has left and right wheels 12L and 12R (L is the left viewed from the driver, R is the same right) on the vehicle body 11 having an inverted T shape in plan view. The same applies hereinafter), and a seat 13 is provided in the middle of these wheels 12L and 12R. The left and right sides of the seat 13 are covered with side covers 14L and 14R, and the wheels 12L and 12R are covered with a fender 15L. , 15R, the front of the seat 13 is covered with a front cover 16, and left and right handle grips 17L, 17R as gripping portions are projected from the longitudinal center of the front cover 16 in a longitudinal direction. A portion of the vehicle body 11 that extends the left and right wheels 12L and 12R further forward is referred to as a vehicle body front extension 20.

Furthermore, a flap (blade) described below is provided.
From the front part of the front cover 16, the screen 18 is erected and the left and right front movable flaps 19L, 19R are extended. Left and right rear movable flaps 21L and 21R are provided on the left and right fenders 15L and 15R, and extend rearward. Further, the vertical blades 23L and 23R are extended from the rear cover 22 covering the rear of the seat 13.

Then, the seat described below is formed integrally with the side covers 14L and 14R or the front cover 16.
The knee grip seats 24L, 24R are extended obliquely downward from the seat 13 to the front (left side in the figure), knee mount seats 25L, 25R are formed on the left and right sides of the seat 13, and a chest rest seat 26 and left and right shoulder rests are formed on the rear portion of the front cover 16. The upper body support part 28 consisting of the seats 27L and 27R is formed.

  The upper body support portion 28 is a surface or seat on which the driver's upper body can be placed. In this example, the upper body support portion 28 is composed of the chest rest seat 26 and the left and right shoulder rest seats 27L and 27R. There is no problem.

  FIG. 2 is an internal structural diagram of the left and right two-wheeled vehicle according to the present invention. The vehicle body frame 30 includes cross members 31, 31, longitudinal frames 32L, 32R, connecting members 33 (. ). The structure of the vehicle body frame 30 is an example, and the two cross members 31f and 31r (f is a front and r is a subscript indicating rear) are changed to one frame, and left and right 2 The longitudinal frames 32L and 32R of the book may be changed to one frame.

  Electric motors 35L and 35R as drive sources are attached to both ends of the cross members 31f and 31f to drive the left and right wheels 12L and 12R.

  Further, the batteries 36 are placed on the rear cross member 31r. That is, the batteries 36 ... are arranged behind the axles of the left and right wheels 12L, 12R to exert the action of the rear mass that balances the front mass (mass). Although the actuator is omitted, it is preferable to make it possible to move all or part of the batteries 36.

  And the internal combustion engine 37, the generator 38, and the travel control part 39 are accommodated between the longitudinal frames 32L and 32R.

  The left and right motors 35L and 35R are operated by supplying power from the batteries 36. The driving control unit 39 performs control related to this operation. The internal combustion engine 37 basically operates continuously at a constant rotational speed and rotates the generator 38, and the obtained electrical energy is stored in the batteries 36. The electric motors 35L and 35R are preferably speed reducer-integrated motors incorporating a speed reduction mechanism.

In this embodiment, since the wheels 12L and 12R are driven by the electric motors 35L and 35R, the rotational speed control of the wheels 12L and 12R is extremely easy. However, the batteries 36... And the electric motors 35L and 35R may be omitted, and the wheels 12L and 12R may be directly driven by the internal combustion engine 37. The internal combustion engine 37 may be a small gas turbine or jet engine.
The type of drive source that drives the wheels 12L and 12R and the power transmission mechanism can be changed as appropriate.

  Further, the front actuators 41L and 41R for moving the front movable flaps 19L and 19R, the rear actuators 42L and 42R for moving the rear movable flaps 21L and 21R, and the central actuators 43L and 43R for moving the vertical blades 23L and 23R are mounted on the vehicle body. Provided on the frame 30.

  Preferably, front / rear moving actuators 44L and 44R for moving the front movable flaps 19L and 19R back and forth are provided. The front movable flaps 19L and 19R can be considered as an influential part of the front mass, and the front and rear balance control can be effectively executed by moving the front movable flaps 19L and 19R back and forth. .

Next, driver position detection means and operation means, which are important components of the present invention, will be described in order.
FIG. 3 is a diagram showing an example of the driver position detecting means according to the present invention. The driver position detecting means 45 includes the seat 13, the left and right knee grip seats 24L and 24R, the knee rest seats 25L and 25R, and the chest rest seat 26. The load cells 46... Embedded in the left and right shoulder seats 27L and 27R and the left and right handle grips 17L and 17R, and the force distribution obtained from the force information obtained from these load cells 46... The analysis unit 47 for specifying the maximum position of the power transmission and the transmission unit 48 for sending the force action position to the outside using XY position information. The load cell 46 is an element that converts force into an electric signal, and a piezoelectric element, a strain gauge, or the like can be applied, and the type is not limited.
The traveling direction of the vehicle body is referred to as the X direction, and the lateral direction of the vehicle body is referred to as the Y direction.

  The driver position detecting means 45 may photograph the driver's posture with a ring handle method or a visual sensor described later, and detect the driver's position based on this posture. Therefore, as long as the driver position detecting means 45 can detect the position of the driver, the configuration and principle are not particularly limited.

FIG. 4 is a view showing an example of the operating means according to the present invention.
(A) shows the mounting form of the operating means, and (b) shows the main part of the operating means.
As shown in (a), the operating means 50 includes a rod-shaped main body 52 provided with a wireless transmission unit 51, bands 53f and 53r for fixing the main body 52 to the left hand 75L of the driver, and the tip of the main body 52. This is a wireless controller including the grip portion 54 provided.

As shown in (b), the gripping portion 54 includes an accelerator lever 55 and a brake lever 56 so as to be swingable, and is rotatably attached to the main body portion 52.
Returning to (a), the vehicle speed increase command is depressed by depressing the accelerator lever 55, the vehicle speed decrease command is relaxed, the brake command is pulled by pulling the brake lever 56, and the left turn or right is turned by tilting the grip 54 to the left or right. Issue a turn command. The front band 53f is loose so as to be loosely restrained. By making it loose, operability can be improved.

  The operation means 50 may be a portable operation panel operated with both hands, for example. Therefore, as long as the operation means 50 is a device having a function of transmitting the driver's intention, the structure and principle are not particularly limited.

  FIG. 5 is a control system diagram of the left and right two-wheeled vehicle according to the present invention. The travel control unit 39 reads the driver position information from the driver position detecting means 45, reads the operation command information from the operating means 50, and the ground distance sensor 58. Read distance information to the ground. The ground distance sensor 58 will be described later.

  The travel control unit 39 controls the rotational speeds of the electric motors 35L and 35R via the motor drivers 61L and 61R after performing the processing described later, and controls the front movable flaps 19L and 19R via the front drivers 62L and 62R. The swing angle is controlled, the swing angles of the rear movable flaps 21L and 21R are controlled via the rear drivers 63L and 63R, and the swing angles of the vertical blades 23L and 23R are controlled via the center drivers 64L and 64R. . Furthermore, the traveling control unit 39 performs front / rear position control of the front movable flaps 19L, 19R using the front / rear movement actuators 44L, 44R.

The operation of the left and right two-wheeled vehicle having the above configuration will be described below.
FIG. 6 is an explanatory diagram of forward travel according to the present invention, where G0 is a neutral position, G1 is a front position, G2 is a rear position, and as a result of the driver moving before the neutral position, the position of the driver is changed from G0. Suppose that it moved to G1. This movement is detected by the driver position detecting means 45 shown in FIG. The amount of movement is given by the driver position information. Based on the driver position information, the rotational speeds of the left and right wheels 12L, 12R are increased. Conversely, when the driver's position moves from G0 to G2, the rotational speeds of the left and right wheels 12L and 12R are decreased.

  FIG. 7 is an explanatory diagram of posture correction according to the present invention. In FIG. 6, when the driver's position moves before the neutral position, the overall balance is obtained by increasing the number of rotations of the wheel. That is, ideally, the distance H detected by the ground distance sensor 58 shown in FIG. 7 does not change. However, the balance may be lost during sudden acceleration or braking. At this time, since the distance H changes, the traveling control unit 39 finely adjusts the rotational speeds of the wheels 12L and 12R so that the distance H becomes constant.

The traveling control unit 39 performs posture control using the front movable flaps (see symbols 19L and 19R in FIG. 1). The front movable flap in a horizontal state receives lift when the rear part is lowered, and conversely, when the rear part is raised, it receives a force opposite to the lift. Therefore, the front part of the vehicle body can be easily raised and lowered, and the distance H can be controlled to be kept constant.
By giving priority to the control of the front movable flap, correction of the rotational speed of the wheels 12L and 12R can be suppressed.

  FIG. 8 is an explanatory view of turning according to the present invention. G0 indicates a neutral position, G3 indicates a right position, and as a result of the driver moving to the right from the neutral position, the driver's position is moved from G0 to G3. . This movement is detected by the driver position detecting means 45 shown in FIG. The amount of movement is given by the driver position information. Based on this driver position information, the rotational speed of the left wheel 12L is increased, and the rotational speed of the right wheel 12R is decreased.

  In addition to simply moving back and forth and left and right, the driver often moves back and forth diagonally. When moving diagonally, the amount of movement is decomposed into an X component (see FIG. 3) and a Y component, and the increase / decrease control of the rotational speed of the wheels 12L, 12R is performed based on the X component, and the wheel 12L is controlled based on the Y component. , 12R rotational speed difference control is performed.

  FIG. 9 is an explanatory diagram of the operation of FIG. 1. The driver 70 places the thigh 71 on the knee grip seat 24L, puts the knee 72 on the knee seat 25L, puts the chest 73 on the chest seat 26, and places the left shoulder 74L. Is closely attached to the shoulder seat 27L. Putting the thigh 71 on the knee grip seat 24R (see FIG. 1), placing the knee 72 on the knee mount seat 25R (see FIG. 1), and bringing the right shoulder 74R into close contact with the shoulder seat 27R (see FIG. 1) Needless to say.

  The driver 70 grips the right handle grip 17R with the right hand 75R, and the left hand 75L grips the grip portion 54 of the operation means 50 without gripping the left handle grip 17L. This posture is the basic running posture. In addition to this traveling posture, there is also a standby posture. This standby posture corresponds to a posture in which the upper body has occurred, such as a posture when the vehicle is stopped (before the start of a race, etc.).

The operation of deceleration and turning from the start to the acceleration while the vehicle is stopped will be described next.
Stop:
Prior to the start of the race, the vehicle will be stopped by balancing the front and rear weights. At this time, since the driving force works so as to maintain the distance H from the race ground with the ground distance sensor (reference numeral 58 in FIG. 7), the driver 70 shifts his body until it stops. Basically, the driver 70 balances, but the front and rear variable mass provided in the vehicle body front extension 20 (in the embodiment, the front movable flaps 19L and 19R also serve as this) assists in balancing. To do. When stopped, the front and rear variable mass is on the rear side in the movable position. In FIG. 2, the batteries 36... Arranged in a line in the vehicle width direction are provided offset from the rear of the axle. It is possible to easily balance the vehicle body front extension 20.

Accelerate from start:
By inserting the accelerator lever (see reference numeral 55 in FIG. 4) of the remote controller (operation means 50), basically, the driver 70 moves his / her weight to the vehicle body front extension part 20, that is, takes a running posture. , Suppress the lifting of the front part of the car body. The front-rear variable mass assists this and moves to maintain the distance H (see FIG. 7).

  Also, if the speed range where aerodynamics can be used, during the acceleration, the front movable flaps 19L and 19R generate a down force so that the rear movable flaps 21L and 21R have at least a moment of a down force at the front movable flap 19L. The aerodynamic force is also used to maintain the distance H while generating the ground force of the tires (wheels 12L and 12R) by generating the down force to the extent that it does not become larger than the moment of 19R. Further, when the weight shift of the driver 70 is not sufficient, the distance H is maintained by automatically limiting acceleration or the like.

  Here, if a certain limit is given to mass movement and aerodynamic assistance, a difference in acceleration will occur due to the skill of the driver 70, and it can be used as a race car. The same applies to deceleration and turning).

Deceleration:
The accelerator lever (see reference numeral 55 in FIG. 4) of the remote controller (operating means 50) is turned off, the brake lever 56 is pulled, and basically, the driver 70 moves his / her body weight rearward, so that the distance H (see FIG. 7) is maintained.
The variable mass (front movable flaps 19L, 19R) moves to the end of the movable position, the front movable flaps 19L, 19R are inclined in the direction in which lift is generated, and the rear movable flaps 21L, 21R are The vehicle is raised to generate a braking force, and a force to prevent the vehicle body front extension 20 from sinking is generated.

Turning:
The turning is executed by causing a difference in rotation between the left and right wheels 12L and 12R according to the turning instruction of the remote controller (operation means 50) and the sensing of the position of the driver 70.
For example, when making a right turn, simultaneously with a right turn instruction from the remote controller (operation means 50), the driver 70 deposits his / her body in the right frame portion extending in the vehicle width direction. As a result, the lifting in the roll direction is suppressed, and the sensor detects the position of the body to adjust the degree of occurrence of the rotation difference.

At this time, the right rear movable flap 21R which is the in-side flap is raised to assist the turning force. Further, a down force is generated by the right front movable flap 19R.
Further, the movable mass is also moved to the initial stage by moving the in-side mass (right front movable flap 19R) forward and the out-side mass (left front movable flap 19L) rearward. A force may be generated.
A battery configured to be movable back and forth may be added to the moving mass in the above description.

  The vertical blades 23L and 23R exhibit an effect of increasing straightness. Further, the vertical blades 23L and 23R exhibit an aerodynamic rudder action when shifting from straight to turning and when returning from turning to straight. In addition, the vertical blades 23L and 23R also play a role of relaxing the side hoses that are generated along with the turning.

  As is apparent from the figure, the operation means 50 is a remote controller. Since the remote controller is movable, the driver 70 who operates the remote controller can greatly change the posture. That is, large-scale weight shift is possible, and thus responsive running control can be obtained. Therefore, the left and right two-wheeled vehicle of the present invention can be applied to a race car.

  Furthermore, in the present invention, a wireless controller is adopted as the remote controller so that the driver 70 can operate while holding it with one hand. Since the driver can hold the handle grip provided on the vehicle body with the other hand, the driver can hold the body better with respect to the vehicle body.

Next, a modified embodiment and another embodiment will be described.
FIG. 10 is a diagram showing a modified embodiment of FIG. 1, and the same elements as those in FIG. This left and right two-wheeled vehicle 10B includes a ring handle 77 as a gripping portion on the vehicle body 11, and a plurality of (seven in this example) legs 78 that respectively support the ring handle 77 and load cells 46. It is characterized by.

  Basically, the driver is provided with operating means (see reference numeral 50 in FIG. 4) in one of the left and right hands, and holds the ring handle 77 with the other hand. In addition, when the posture is changed greatly, the body is deposited in the ring handle 77.

  When the driver changes his / her posture, the force applied to the ring handle 77 and the applied position of the force change. Therefore, the load cell 46... Can detect the force distribution and its change. That is, the main elements of the driver position detecting means 45 are constituted by a ring handle 77, legs 78, and a load cell 46.

  FIG. 11 is a diagram showing another embodiment of the left and right two-wheeled vehicle according to the present invention, and is a diagram showing three kinds of driving postures of one driver 70. That is, M1 indicates the position and posture of the driver 70 at the neutral position, M2 indicates the position and posture of the driver 70 at the front position, and M3 indicates the position and posture of the driver 70 at the rear position.

  The left and right two-wheeled vehicle 80 including the left and right wheels 12L and 12R includes a sufficiently long seat 81, a sufficiently long step 82, and a wired controller 83 as a remote controller.

  The wired controller 83 includes an operating element 84 having an accelerator lever, a brake lever, and a turning lever, a drum 85 provided on the vehicle body side, and a harness 86 that extends from the drum 85 and is electrically and mechanically joined to the operating element 84. The harness 86 is not restrained under a condition where the pulling force acting on the harness 86 is less than a certain value, but is comprised of a harness lock / unlock member 87 that restrains the harness 86 under a condition where the pulling force acting on the harness 86 is not less than a certain value. . That is, the drum 85, the harness 86, and the harness lock / unlock member 87 can adopt the same structure as the seat belt holding mechanism of a passenger car.

  When the driver 70 approaches M2, the left and right two-wheeled vehicle 80 moves forward at high speed. When the driver 70 moves backward to M3, sudden braking can be applied. During this time, the driver 70 always holds the operating element 84, and the harness 86 exhibits the action of the tow rope, so that the driver 70 can maintain a stable posture.

  The left and right two-wheeled vehicle of the present invention is suitable for a race car.

1 is an external view of a left and right motorcycle according to the present invention. 1 is an internal structure diagram of a left and right motorcycle according to the present invention. It is a figure which shows an example of the driver | operator position detection means which concerns on this invention. It is a figure which shows an example of the operation means which concerns on this invention. It is a control system diagram of the left and right motorcycle according to the present invention. It is forward travel explanatory drawing which concerns on this invention. It is explanatory drawing of the attitude | position correction | amendment which concerns on this invention. It is turning explanatory drawing which concerns on this invention. FIG. 2 is an operation explanatory diagram of FIG. 1. FIG. 2 is a modified embodiment diagram of FIG. 1. It is another Example figure of the left-right two-wheeled vehicle which concerns on this invention.

Explanation of symbols

  10, 10B, 80 ... left and right two-wheeled vehicle, 11 ... vehicle body, 12L, 12R ... wheels, 17L, 17R ... left and right handle grips as gripping portions, 35L, 35R ... drive source (electric motor), 39 ... travel control unit, 45 ... Driver position detection means, 50 ... operation means (wireless controller), 51 ... wireless transmission section, 70 ... driver, 77 ... ring handle as gripping part, 83 ... wired controller, 86 ... harness.

Claims (2)

A left and right two-wheeled vehicle that travels by having left and right wheels on the vehicle body and driving these wheels with a drive source mounted on the vehicle body,
The left and right two-wheeled vehicle includes a driver position detecting means for detecting the weight shift of the driver, an operating means for generating operation command information by the driver's operation, the driver position information from the driver position detecting means and the operation In a left and right two-wheeled vehicle comprising a traveling control unit that receives operation command information from the means and determines the rotational speed of the left and right wheels to control the drive source,
The operation means is a wireless remote controller, and is configured so that the driver can operate while gripping with one hand, and so that the other hand of the driver can grip the vehicle body, A left and right two-wheeled vehicle characterized in that a gripping portion is provided on a vehicle body. A left and right two-wheeled vehicle that travels by having left and right wheels on the vehicle body and driving these wheels with a drive source mounted on the vehicle body,
The left and right two-wheeled vehicle includes a driver position detecting means for detecting the weight shift of the driver, an operating means for generating operation command information by the driver's operation, the driver position information from the driver position detecting means and the operation In a left and right two-wheeled vehicle comprising a traveling control unit that receives operation command information from the means and determines the rotational speed of the left and right wheels to control the drive source,
The operation means is a wired remote controller, and a harness connecting the vehicle body and the remote controller can be pulled out from the vehicle body when receiving a pulling force less than a certain value, and when receiving a pulling force exceeding a certain value, the vehicle body The left and right two-wheeled vehicle is configured so that it cannot be pulled out from the vehicle and serves as a towline for the driver.

Images