JP2002078754A - Driving manipulator for motor-driven vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving manipulator for a motor-driven vehicle capable of facilitating switching of the manipulator for a driver who manipulates with the right hand, or with the left hand. SOLUTION: This device is provided with a main body 7 of the driving manipulator, turning body 8 capable of turning relatively to the main body 7 of the driving manipulator, a shaft 9 fixed on the turning body 8 while rotations around an axis are permitted, a manipulating means 10 a base end 10a of which is fixed on the terminal part of the shaft 9, a potentiometer 11, a stop means 12 for stopping a senior car by stopping driving motor, a long hole 15 and a screw 13 for regulating the turn of the turning body 8 in the reverse direction while making the direction of the turning body 8 capable of turning from a neutral position in the case of fixing the manipulating means 10 on one end part of the shaft 9 different from that in the case of fixing the manipulating means on the other end part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vehicle drive operating device for operating a motor in an electric vehicle such as an electric wheelchair or a senior car.

[0002]

2. Description of the Related Art In general, a senior car used by elderly people with physical disabilities to move is driven by motors to drive wheels, which can be steered by a steering wheel and adjusted in speed by an accelerator operation. Since the maximum speed of a normal senior car is extremely low, there is no means for forcibly stopping the wheels, such as a brake provided in an automobile or the like, and the senior car is stopped by stopping the rotation of the motor. It is configured to stop.

[0003] Here, in order to make it easy for an elderly person with a disability to drive, the shaft provided near the steering wheel is conventionally rotated around its axis to control the rotation speed of the motor and to control the rotation speed of the shaft. There has been provided a drive operation device configured to stop the motor when the driver pulls the motor to the driver's seat side.

[0004] The operation of the shaft is performed by operating means having a base end fixed to the right end of the shaft (when viewed from the driver's seat side) and a distal end protruding toward the driver's seat side, and moving the distal end of the operating means up and down. When it is moved, the shaft is rotated around its axis, and when the tip is pulled toward the front, the shaft is rotated rightward about the center in the longitudinal direction so that the shaft can be pulled to the driver's seat side. ing. The rotation of the shaft from the neutral position to the right is allowed as described above, and the rotation to the left is restricted.

[0005]

In the above-described conventional drive operation device for an electric vehicle, the operation means is attached to the right end of the shaft and is set for a driver operating with the right hand. To set for the driver to operate, it is necessary to replace the operating means with the left end of the shaft. That is, since the operating means is designed in principle so that the driver can extend the finger while holding the steering wheel and operate it, if the operating means is attached to the right end of the shaft, it cannot be operated with the left hand. is there.

However, when the operating means is replaced with the left end of the shaft, the rotation direction around the axis of the shaft is the same, but the rotation direction of the shaft when the motor is stopped is reversed (rotation from the neutral position to the left direction). ), The rotation is restricted, and the motor stop operation cannot be performed.
Therefore, it is necessary to prepare a separate unit for a left-handed operator, and it is difficult to switch between a right-handed driver and a left-handed driver. Was.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and has a drive operation of an electric vehicle capable of easily switching between a driver's operation with a right hand and a driver's operation with a left hand. It is to provide a device.

[0008]

According to the first aspect of the present invention,
A drive operating device for an electric vehicle that obtains driving force by a motor, the drive operating device main body rotating together with a steering wheel, and disposed inside the drive operating device main body and rotated relatively to the drive operating device main body. A movable body, a long hole extending in the rotating direction of the rotating body and formed in the rotating body, and a projecting means that can be formed in the drive operation device main body in a state of protruding through the long hole. When the rotating body is in the neutral position, the position where the projecting means is formed can be selected at one end or the other end of the elongated hole, and the rotation around the axis is allowed while A shaft attached to a rotating body, a base end fixed to an end of the shaft, a tip protruding toward the driver's seat side, and when the tip is moved up and down, the shaft can be rotated around its axis. And the tip Operating means capable of pulling to the transfer seat side and rotating the rotating body together with the shaft relative to the drive operating device main body; and a driving force of a motor based on rotation of the shaft about an axis thereof. And stop means for stopping the electric vehicle by stopping the driving of the motor by the relative rotation of the rotating body with respect to the drive operation device main body.

According to this structure, if the projecting means is formed at one or the other end of the elongated hole when the rotating body is at the neutral position, the rotating body is rotated toward the formed side. Although permitted, rotation to the opposite side is restricted by interference between the protruding means and one end of the long hole.

[0010] According to a second aspect of the present invention, the projecting means includes:
It is a screw fixed to the rotating body.

According to this configuration, the rotatable direction from the neutral position of the rotating body can be selected by inserting and removing a screw at one end or the other end of the elongated hole.

According to a third aspect of the present invention, a notch is provided in which a part of the rotating body is cut out instead of the long hole.

According to this structure, when the rotating body is at the neutral position, if the projecting means is formed at one or the other end of the notch, the rotating body is allowed to rotate toward the formed side. However, the rotation to the opposite side is restricted by the interference between the protruding means and one end of the notch.

According to a fourth aspect of the present invention, there is provided a return means for returning the rotary body to a neutral position after the rotary body rotates, and the return means is provided between two side surfaces of the rotary body. A compression spring inserted in a through hole that penetrates, two rollers formed at both ends of the compression spring, and a roller that allows the roller to protrude from the through hole to a state in which the roller protrudes by a predetermined size, and And a roller regulating portion for regulating the protrusion of the drive operating device main body.
When the rotating body rotates, an inner wall surface is formed to press one of the rollers according to the rotating direction.

According to this configuration, when the rotating body rotates in one direction, only one of the rollers is pressed from the inner wall surface of the drive operating device body to compress the compression spring,
The rotating body is returned to the neutral position by this restoring force. When the rotating body rotates in the other direction, only the other roller is pressed from the inner wall surface of the drive operation device body to compress the compression spring, and the restoring force returns the rotating body to the neutral position. The roller on the side that is not pressed is
It remains in a state of being protruded by a predetermined dimension due to the roller regulating portion.

[0016]

Embodiments of the present invention will be specifically described below with reference to the drawings. The senior car to which the drive operation device for the electric vehicle according to the present embodiment is applied,
As shown in FIG. 10, the vehicle body 2 includes a seat 2 a, wheels 3, a steering wheel 4, a drive operation device 5, and a motor 6. After the driver is seated on the seat 2, the driver drives while gripping the steering wheel 4. When the operation device 5 is operated, the wheels 3 are rotated by the motor 6 to move the senior car 1 forward.

The steering wheel 4 is used to steer the senior car 1 by the driver's operation. As shown in FIG. 3, when the grip formed in an annular shape is rotated, the direction of the front wheels of the wheels 3 of the senior car 1 is changed. Is configured to be able to be changed.
A drive operating device 5 for controlling the driving of the motor 6 is provided substantially at the center of the handle 4, and is provided so that the driver can operate the drive operating device 5 while holding the handle 4. ing.

The drive operation device 5 according to the present embodiment is similar to the drive operation device shown in FIG.
As shown in FIG. 2, the drive operation device main body 7, a rotating body 8, a shaft 9, an operation means 10, a potentiometer 11 as an accelerator means, a stop means 12, and a screw 13 as a protruding means are included. Regulating means and return means 14
It is mainly composed of

The drive operating device main body 7 is connected to the lower part of the handle 4 by a connecting member 4a (see FIG. 3), rotates together with the handle 4, and is capable of holding a rotating body 8 on its upper part. . In addition, the drive operation device body 7
Is provided with a lid 7a for covering the rotating body 8 to prevent infiltration of rainwater and dust from the outside.

As shown in FIG. 5, the rotating body 8 is disposed in the drive operating device main body 7, and is rotatable relative to the drive operating device main body 7. If the screw 13 described below is not formed, a rightward a
And left rotation b. Further, a through hole 16 penetrating through the side surface 8a and the side surface 8b is formed in the rotating body 8, and is configured so that a return means 14 described later is provided.

The shaft 9 is attached to the rotating body 8 while allowing rotation about the axis. A washer 18 is provided at a fixed portion between the shaft 9 and the rotating body 8. At a substantially central portion of the shaft 9 in the axial direction,
A return spring 20 having one end fixed to a pin 19 formed on the shaft 9 and the other end fixed to one portion of the rotating body 8 is provided.

When the shaft 9 rotates around its axis, the return spring 20 can generate a rotational force in the opposite direction by the urging force. If the rotational force is released, the shaft 9 can be naturally returned to the initial position.

The operating means 10 includes a base 10a having a shaft 9
At the right end (when viewed from the driver's seat side)
0b is L-shaped (see FIG. 3) and protrudes toward the driver's seat side, and when the tip 10b is moved up and down, the shaft 9 can be rotated around its axis. By pulling, the rotating body 8 can be rotated together with the shaft 9 relative to the drive operating device main body 7.

That is, as shown in FIG. 4, when the operating means 10 is pulled in the direction c from the state where the shaft 9 is in the neutral position (a state extending substantially right in the figure), the rotating body 8 is moved to the drive operating device main body 7. It is configured to rotate relatively to the right direction a. In addition, a return unit 14 is provided to return the shaft 9 to the neutral position when the driver releases his / her hand from the operation unit 10.

The return means 14 includes a compression spring 17 inserted in the through hole 16 of the rotating body 8 and the compression spring 1.
7, two rollers 21a and 21b formed at both ends,
The roller 21a, 21b is allowed to protrude from the through hole 16 to a state where it protrudes from the through hole 16 by a predetermined size, and includes a roller restricting portion 16a (see FIG. 5) for restricting further protrusion. When the rotating body 8 rotates, one of the rollers 21 according to the rotating direction
The inner wall surface 8c is formed in a shape that presses a or 21.

As a result, as shown in FIG.
Is rotated in the direction a, only the roller 21a is pressed from the inner wall surface 8c of the drive operating device main body 7 to compress the compression spring 17, and the restoring force in the direction d in the drawing causes the rotating body 8 to reach the neutral position. Let it return. Conversely, as shown in FIG. 7, when the rotating body 8 rotates in the direction b, the rollers 21b
Only the compression member 17 is pressed from the inner wall surface 8c of the drive operation device main body 7 to compress the compression spring 17, and the rotating body 8 is returned to the neutral position by the restoring force in the direction e in FIG. still,
The roller 21a or 21b on the non-pressed side is configured to protrude by a predetermined dimension due to the roller restricting portion 16a so as not to generate a restoring force on the rotating body 8.

The potentiometer 11 is composed of a variable resistor and controls the driving force (the number of revolutions) of the motor 6 based on the rotation of the shaft 9 around its axis. As shown in FIG. The gear 23 is disposed so as to mesh with the gear 24 of the potentiometer 11. Therefore, the gear 24 rotates in accordance with the rotation angle of the shaft 9 and the resistance value of the potentiometer 11 is changed, so that a desired amount of current can be supplied to the motor 6. The number of rotations (driving force) of the motor 6 depends on the magnitude of the current.
Is controlled, the speed of the senior car 1 can be adjusted.

The stopping means 12 has a micro switch. When the micro switch detects the rotation of the rotating body 8 (both the right rotation a and the left rotation b), the micro switch is connected to the motor 6. It is configured to cut off the supply of current. Thus, when the supply of the current to the motor 6 is cut off, the senior car 1 stops.

The restricting means includes a slot 1 formed in the rotating body 8.
5 and a screw 13 formed in the drive operating device main body 7, and a rotating body is provided when the operating means 10 is fixed to one end of the shaft 9 and when the operating means 10 is fixed to the other end. 8, while changing the rotatable direction from the neutral position,
This is for restricting the rotation of the rotating body 8 in the opposite direction.

As shown in FIG. 8, the elongated hole 15 is a through hole that penetrates the upper and lower surfaces of the rotating body 8, and is formed to extend in the rotating direction, and the rotating body 8 is in the neutral position. One end 15a of the long hole 15 in the drive operation device body 7 in the state
At the position corresponding to the other end 15b, mounting holes 22a and 22b for mounting the screw 13 are formed.

Thus, the screw 13 is connected to one end 15a of the elongated hole 15 (that is, the mounting hole 22a) or the other end 15b.
(That is, the mounting hole 22b). For example, the screw 13 is attached to the mounting hole 22a.
When the rotary body 8 is attached to the left side, the rotary body 8 is allowed to rotate in the right direction a, while the rotary body 8 is allowed to rotate in the left direction b.
When the screw 13 is attached to the mounting hole 22b, the rotation of the rotating body 8 in the left direction b is allowed while the rotation of the rotating body 8 in the right direction a is allowed. On the other hand, the screw 13 and the other end 15b of the long hole 15 interfere with each other to restrict the rotation.

A notch 15 'is formed in the rotating body 8 as shown in FIG. 9 instead of the elongated hole 15 formed in the rotating body 8, and both ends (15a' and 15a in the figure) of the notch 15 'are formed.
The screw 13 may be selectively attached to a position corresponding to b '). As means for restricting the rotation of the rotating body 8, any means other than the screw 13 may be used as long as it protrudes through the long hole 15.

According to the drive operating device 5 having the above-described structure, the direction in which the rotating body 8 can rotate from the neutral position depends on whether the operating means 10 is fixed to the right end or the left end of the shaft 9. Since the rotation of the rotating body 8 in the opposite direction can be restricted while being different, the one set for the driver operated with the right hand and the one set for the driver operated with the left hand can be used. Switching can be facilitated.

The return to the neutral position after the rotating body 8 is rotated is performed by one compression spring 17, so that the one for the driver operating with the right hand and the one for the driver operating with the left hand. Since the restoring force can be made equal to that of the above, and no separate adjustment is required, the switching between them can be facilitated.

Although the present embodiment has been described above, the present invention is not limited to this, and can be applied to, for example, other types of senior car or electric wheelchair drive operating devices. Means for restricting the rotation of the rotating body is such that the direction in which the rotating body can rotate from the neutral position depends on whether the operating means is fixed to one end of the shaft or to the other end. Other means may be used as long as they restrict the rotation of the rotating body in the opposite direction while making the difference.

[0036]

According to the first or third aspect of the present invention,
The provision of the restricting means makes it easy to switch between the driving operation device of the electric vehicle for the driver operated by the right hand and the driving operation device of the electric vehicle for the driver operated by the left hand. In particular, a drive operation device for an electric vehicle for a driver who operates with a right hand and a driver who operates with a left hand only by forming a long hole or a notch in the rotating body and selecting which of these ends to form the projecting means. Can be switched with the drive operation device of the electric motor vehicle, so that the switching can be performed with a simple configuration.

According to the second aspect of the present invention, since the projecting means is a screw, it is possible to more easily and easily regulate the rotating direction of the rotating body in the drive operation device.

According to the invention of claim 4, both for the driver operating with the right hand and for the driver operating with the left hand,
Since the same return means is used, the return force when these are switched becomes equal, and it is not necessary to perform any separate adjustment.

[Brief description of the drawings]

FIG. 1 is a side perspective view showing a drive operation device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a plan view showing a state where the drive operation device according to the embodiment of the present invention is attached to a handlebar of an electric vehicle.

FIG. 4 is a side view showing an operation of the drive operation device according to the embodiment of the present invention.

FIG. 5 is a plan view showing a rotating body in the drive operation device according to the embodiment of the present invention.

FIG. 6 is a schematic view illustrating the operation of a return unit in the drive operation device according to the embodiment of the present invention.

FIG. 7 is a schematic view illustrating the operation of a return unit in the drive operation device according to the embodiment of the present invention.

FIG. 8 is a schematic view showing a regulating unit in the drive operation device according to the embodiment of the present invention.

FIG. 9 is a schematic view showing another regulating means in the drive operation device according to the embodiment of the present invention.

FIG. 10 is a perspective view showing a senior car to which the drive operation device according to the embodiment of the present invention is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Senior car (electric vehicle) 2 ... Body 2a ... Seat 3 ... Wheel 4 ... Handle 5 ... Drive operating device 6 ... Motor 7 ... Drive operating device main body 7a ... Lid 8 ... Rotating body 8a, 8b ... Side surface 8c ... Inner wall surface 9 Shaft 10 Operating means 10a Base end 10b Tip 11 Potentiometer (accelerator means) 12 Stopping means 13 Screw (protruding means) 14 Return means 15 Long holes 15a, 15a 'One end 15b 15b '... the other end 15' ... notch 16 ... through hole 16a ... roller regulating part 17 ... compression spring 18 ... washer 19 ... pin 20 ... return spring 21a, 21b ... roller 22a, 22b ... mounting holes 23, 24 ... gear a … Right direction b… Left direction

Claims (4)

[Claims] 1. A drive operating device for an electric vehicle that obtains a driving force by a motor, comprising: a drive operating device main body that rotates together with a steering wheel; A rotating body that is relatively rotatable, an elongated hole that extends in the rotating direction of the rotating body and is formed in the rotating body, and is formed in the drive operation device main body in a state of protruding through the elongated hole. A restricting means comprising a protruding means capable of selecting a position where the protruding means is formed at one end or the other end of the elongated hole when the rotating body is at the neutral position; and a rotation about an axis. A shaft attached to the rotating body while being allowed to move, a base end fixed to an end of the shaft, a tip protruding toward the driver's seat side, and moving the tip up and down to move the shaft around its axis. Can be rotated Operating means capable of pulling the tip to the driver's seat side and rotating the rotating body together with the shaft with respect to the drive operating device main body, based on rotation about the axis of the shaft. Accelerator means for controlling the driving force of the motor, and stopping means for stopping the electric vehicle by stopping the driving of the motor by the relative rotation of the rotating body with respect to the drive operation device main body. Operating device for electric vehicles. 2. A drive operating device for an electric vehicle according to claim 1, wherein said projecting means is a screw fixed to said rotating body. 3. The drive operating device for an electric vehicle according to claim 1, further comprising a cutout in which a part of the rotating body is cut out instead of the long hole. 4. A return means for returning the rotary body to a neutral position after the rotary body has rotated, the return means being provided in a through hole penetrating between two side surfaces of the rotary body. A compression spring that has been inserted, two rollers formed at both ends of the compression spring, and a roller that allows the roller to protrude from the through hole to a state where it protrudes by a predetermined size, and that restricts further protrusion. And a regulating portion, wherein the drive operation device main body is formed with an inner wall surface that is shaped to press one of the rollers according to the rotation direction when the rotation body rotates. Any one of claims 1 to 3
4. The driving operation device for an electric vehicle according to claim 1.