JPH05241653A - Golf cart for riding - Google Patents

Abstract

PURPOSE:To previously prevent an accident for a person under riding to fall or to be dropped off because of an instable traveling state caused by gripping a handle by the person under riding during automatic steering. CONSTITUTION:A protecting member 15 is provided to be selectively turned to a first position A to be an obstacle for gripping a handle 6 for steering at a car body and a second position B not to be an obstacle for operating the handle 6, and when the protecting member 15 is set at the first position A, a steering mode changeover switch is switched to an automatic steering mode or when the protecting member 15 is set at the second position B, that switch is changed over to a manual steering mode respectively by the protecting member 15 itself.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a riding type golf cart which can be automatically or manually run along a guide line provided on a running path.

[0002]

2. Description of the Related Art In recent years, various types of riding type golf carts that automatically run using a guiding wire buried in the ground as a guiding means have been proposed. Standing type golf carts in which a person stands up and a seat is provided. There are models that allow you to ride while sitting.

[0003]

In such a riding type golf cart, handles for supporting an unstable body during automatic traveling are provided at various places, but steering is mistakenly performed on a slope or at high speed. I sometimes grab the wheel handle. The steering wheel rotates in conjunction with the forward and reverse drive of the steering motor even during automatic steering. If a person grips this strongly, the rotation of the steering wheel will be restricted and the running condition will become unstable. The rotation of the handle twists the hand, which may lead to an accident such as a fall in posture and a fall.

The present invention has been made in view of the above circumstances, and its purpose is to make it difficult for the protective member to grasp the handle during automatic steering, and to stop traveling when the handle is mistakenly grasped. The purpose of the present invention is to provide a riding-type golf cart with improved safety for passengers.

[0005]

A riding type golf cart according to a first aspect of the present invention detects a driving source for driving and a guiding means provided along a running path, and steers the vehicle so as to run along the guiding means. Grasping the steering wheel in a riding-type golf cart equipped with a steering means that is automatically or manually operated by a motor, and a control unit that drives and controls the traveling drive source and the steering motor. A protective member selectively movable between a first position that obstructs the vehicle and a second position that does not obstruct the manual operation of the handle, and the protective member is in the first position. Has a switch which is switched to the automatic steering mode and to the manual steering mode when in the second position by the protection member.

The riding type golf cart according to the second aspect of the present invention detects the driving source for driving and the guiding means provided along the running path, and automatically operates by the steering motor to run along the guiding means. Alternatively, in a riding type golf cart provided with a steering means having a manually operated handle and a control unit for driving and controlling the driving source for driving and the steering motor, a pressure provided on a gripping portion of the handle is provided. A sensor and a current sensor for detecting a drive current of the steering motor are provided, and the control unit stops traveling when the pressure sensor detects pressure or when the current sensor detects a current of a predetermined value or more. In order to achieve this, the driving source for traveling is controlled.

[0007]

In the first aspect of the present invention, the protective member moves to the first position in the vicinity of the handle during automatic steering to make it difficult to grip the handle, and reversely retracts from the vicinity of the handle during manual steering. There is no hindrance to the operation of the handle by moving to the position 2, and the operation to the first position of the protective member brings it into the automatic steering mode, and the operation to the second position brings it into the manual steering mode. The mode changeover switch is changed over.

In the second aspect of the present invention, when the steering wheel is erroneously gripped during automatic steering, the pressure sensor or the current sensor of the steering motor detects the pressure and current, respectively, and the vehicle automatically travels through the control unit. It is possible to prevent accidents such as a person falling due to unstable driving and falling due to unstable traveling.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings showing the embodiments. FIG. 1 is a perspective view of a riding type golf cart according to the present invention, and FIG. 2 is a schematic side view of the same.
10 indicates the vehicle body. Body 10 is steering wheel front wheel 1L, 1R
, A rear wheel 2L, 2R, a seat 3 on which a person sits down between the front wheels 1L, 1R, and rear wheels 2L, 2R, a window 4 in the front of the vehicle body 10, and a seat 4 above the seat. Is provided with a hood 5 for covering.

A steering wheel 6 serving as a steering wheel is provided in front of the seat 3.
However, the accelerator pedal 7 and the brake pedal 9 (see FIG. 5) are also arranged in the step. Reference numeral 8 is a loading platform on which the golf bag G is placed. The handle 6 has a handle sensor 28 including a pressure sensor or the like on its grip portion 6a.
Is provided, the handle sensor 28 is always in operation during automatic steering, and when a person grasps the handle 6, this is detected, and during manual steering, it is immobile and the person grasps the handle 6. But it does not detect this. Reference numeral 15 is a protection member for protecting the handle 6, and is configured in a U shape from the support frame 4a on one side of the window 4 to the front part of the handle 6, that is, the seat 3 side and the support frame 4b on the other side of the window 4. Has been done.

FIG. 3 is a partially enlarged perspective view showing a connecting portion between one end of the protection member 15 and the support frame 4b of the window 4, and both ends of the protection member 1515 are directed from the support frame 4b toward the seat 3 side. It is pivotally supported by a horizontal pin 16a in a support bracket 16 that has a U-shaped cross section and is horizontally extended.
Around the horizontal pin 16a, as shown in FIG.
That is, the person crosses the side of the seat 3 and is located at a position where it is difficult for a person to grab the handle 6, that is, the first position A, and is located substantially parallel to the support frames 4a and 4b of the window 4 apart from the handle 6 and The handle 6 can be selectively rotated to a second position B where it does not hinder gripping.

FIG. 4 is a partially enlarged side view when the protective member 15 is moved to the second position B. The mode change switch 17 and the elastic holder 18 are provided on the support frame 4a on one side of the window 4. There is. The mode switch 17 is a protective member 15.
Is rotated to the second position B and held by the elastic holder 18, it comes into contact with the protective member 15 and is turned on, in other words, the manual steering mode is set, and the protective member 15 is set to the first position shown in FIG. When it is rotated to the position A of 1, it is switched to the off state, in other words, to the automatic steering mode. Moreover, the protective member 15
Although not specifically shown when is located at the first position A, the handle sensor 28 is in the operating state, and the second position B is
The steering wheel sensor 28 can be switched to the non-moving state when it is located at.

FIG. 5 is a block diagram showing an automatic running control system. A steering motor M ₁ is provided at the center of the axle 1s connecting the front wheels 1L, 1R, and a frame 10a at the center of the front of the vehicle body 10 is provided. On the left and right are installed inductive sensors 11L, 11R and an inductive wire sensor 11h. Further, an axle 2s connecting the rear wheels 2L, 2R is provided with an electromagnetic brake 12, a drum brake 13, an encoder 14 and a traveling motor M _2. Has been.

Reference numeral 20 denotes a control unit composed of a microcomputer, which includes a fixed-point magnetic sensor 21, a steering motor M ₁ current sensor 22, a guide wire position shift sensor 23, and a guide sensor 11.
Guide wire level sensor 24 that detects the presence or absence of induction based on the detection signal from h and outputs a signal, breaker 25, battery voltage sensor 26, command signal sensor for remote control remote operation
27, the above-mentioned handle sensor 28, a passenger sensor 29 for detecting whether a person is in the vehicle, a speed sensor 30 for detecting the traveling speed, a current sensor 31 for detecting the drive current of the traveling motor M ₂ , a collision sensor The signals from the various operation switches 33 including 32 and the above-mentioned running mode changeover switch 17 are taken in, the steering motor M _{1 is} operated via the steering motor output control unit 41, and the electromagnetic brake is operated via the electromagnetic brake drive control unit 42.
12, the traveling motor M via the traveling motor output control unit 43
₂ and the alarm buzzer 44 etc. are controlled.

The inductive sensors 11L and 11R detect the magnetic field formed by an inductive wire (not shown) buried in the ground and input the detection signal to the inductive wire position shift sensor 23. .. The guide line position shift sensor 23 does not output a control signal when the detection signals of both are equal, and when there is a difference between the detection signals, outputs the difference signal to the control unit 20 and controls the motor output for steering. The steering motor output control unit 41 outputs to the steering motor M ₁ a control signal necessary for making the difference signal zero.

The guide wire sensor 11h also detects the magnetic field formed by the guide wire, and the detection signal is taken in by the guide wire level sensor 24. The guide wire level sensor 24 detects the presence or absence of a guide wire, in other words, whether or not the vehicle body is located on the guide wire, and outputs this to the control unit 20. The fixed-point magnetic sensor 21 detects the magnetism of the magnet embedded at the position where the golf cart should be stopped, and detects this magnetism.
It is designed to output to.

The remote control command signal sensor 27 is always maintained in a standby state, and a remote control command signal such as traveling,
When a signal such as stop is detected, the detection signal is output to the control unit 20. The steering wheel sensor 28 detects, for example, when a person grips the steering wheel 6 during automatic steering, outputs a detection signal to the control unit 20, and is in a stationary state during manual steering. The occupant sensor 29 is composed of a pressure sensor or the like, is installed under the seat 3, and outputs a detection signal to the control unit 20 when a person is in the vehicle. The location of the passenger sensor 29 is not limited to under the seat 3, and may be installed in a step or the like.

The speed sensor 30 is connected to the encoder 14 and converts a signal from the encoder 14 into a speed to control the controller.
It is designed to output to 20. The collision sensor 32 is the vehicle body 10
It is attached to the front portion of, for example, a bumper or the like, and when a predetermined pressure is detected, the detection signal is output to the control unit 20.

Next, the operation of the riding type golf cart according to the present invention will be described with reference to the flow chart shown in FIG. When the riding golf cart has stopped traveling due to a stop signal being issued (step S1), when the traveling is started, it is determined whether the steering mode has been switched to automatic or manual (step S2). ). The person who got on the golf cart,
For example, the protection member 15 for automatically steering the second member shown in FIG.
When the position is set to the position B, the mode changeover switch is turned on, and the occupant depresses the accelerator pedal 7 to manually steer the steering wheel 6 (step S3).

On the other hand, the protection member 15 is located at the first position A shown in FIG.
When the switch is positioned at, the mode selector switch 17 is turned off, and the start switch is turned on to start automatic steering. During automatic steering, it is determined whether or not the steering wheel sensor 28 provided on the steering wheel 6 has detected the pressure, in other words, whether or not a passenger is gripping the steering wheel 6 (step S4).
When the steering wheel 6 is not touched, the traveling signal is directly output from the control unit 20 (step S5) and the traveling is continued.

During automatic steering, it is repeatedly judged whether or not the steering wheel sensor 28 detects pressure (step S6), and then it is judged whether or not the steering motor M ₁ is overloaded (step S6). S7). When a person on board accidentally grasps the handle 6, the handle sensor 28 detects this, and because the handle 6 is firmly grasped, the handle 6 rotated by the steering motor M ₁ along the guide line is detected. When restrained and the current sensor 22 detects a drive current of a certain level or more, it is judged as an overload state and the control unit 20 automatically stops the traveling, and a person in the vehicle may feel unstable running of the golf cart. It is possible to prevent accidents such as being shaken off or falling.

[0022]

As described above, in the riding type golf cart according to the present invention, the protective member is located in the vicinity of the steering wheel during automatic steering to prevent a person from gripping the steering wheel.
Instead of the handle, the protective member is gripped to maintain stable posture, and during manual steering, the protective member is moved away from the handle to facilitate the steering wheel operation. Since the mode change switch of the mode is operated, erroneous operation can be prevented and the present invention has excellent effects.

Further, in the riding type golf cart according to the present invention, the steering wheel is provided with a pressure sensor and the steering motor is provided with a current sensor, and the pressure sensor outputs pressure and the current sensor outputs a current of a predetermined value or more. In this case, the control unit automatically stops traveling, which prevents the occupant from being shaken off due to unstable traveling, and also prevents accidents such as falling over, thus ensuring safety. Greatly improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a riding type golf cart according to the present invention.

FIG. 2 is a side view of a riding type golf cart according to the present invention.

FIG. 3 is a partially enlarged view of a protection member.

FIG. 4 is a partially enlarged view showing the relationship between the protection member and the mode changeover switch.

FIG. 5 is a block diagram showing a travel control system of the riding type golf cart according to the present invention.

FIG. 6 is a flowchart showing an example of an operation procedure of a control unit in the riding golf cart according to the present invention.

[Explanation of symbols]

 1L, 1R Front wheel 2L, 2R Rear wheel 3 Seat 4 Window 5 Hood 6 Handle 7 Accelerator pedal 8 Loading platform 10 Car body 15 Protective member 17 Mode change switch 20 Control unit 22 Current sensor 28 Handle sensor 29 Passenger sensor

Claims (2)

[Claims] 1. A steering equipped with a driving source and a steering wheel that detects a guiding means provided along a traveling path and is automatically or manually operated by a steering motor so as to travel along the guiding means. In a riding-type golf cart equipped with a directing means and a control unit for driving and controlling the traveling drive source and the steering motor, a first position that is an obstacle to grip the handle and an obstacle to a manual handle operation. And a second position which is not movable, the protective member being selectively movable, and when the protective member is in the first position, it is in the automatic steering mode, and when it is in the second position, A riding-type golf cart having a switch for switching to a manual steering mode by the protection member. 2. A driving device comprising a driving source for driving and a steering wheel which detects a guiding means provided along a traveling path and is automatically or manually operated by a steering motor to travel along the guiding means. In a riding type golf cart provided with a directing means and a control section for driving and controlling the traveling drive source and the steering motor, a pressure sensor provided in a grip portion of the handle and a driving current of the steering motor are provided. A current sensor for detecting, and the control unit controls the traveling drive source to stop traveling when the pressure sensor detects pressure or when the current sensor detects a current more than a predetermined value. A riding-type golf cart characterized by being