JP2865638B2 - Guided golf cart - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guided golf cart that guides and runs along a guide line buried on a road surface.

[0002]

2. Description of the Related Art Conventionally, this type of guided golf cart has been disclosed, for example, in Japanese Utility Model Laid-Open No. 59-134809 (G05D).
1/02) is known. That is, it has two steering systems, an unmanned steering system that runs along the guidance track line laid on the road surface and a manned steering system that is steered by operating a potentiometer, and these steering systems can be switched by a switch. Has become. A switch for switching, an operation knob for manned steering, and the like are attached to the operation panel. Then, the user selects a steering system by a switch. If the steering system is a manned steering system, the steering is performed by a potentiometer, and if the system is an unmanned steering system, the vehicle automatically travels on a guide track.

However, with the above-described configuration, for example, if a person who is not accustomed to steering operates the operation panel while in the unmanned steering system and switches to the manned steering system by mistake, the operation is not controlled. There is a problem in that the potentiometer cannot be operated well because of inexperience, that is, the steering cannot be performed well, which is very dangerous.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks. By operating a switch in a state where a golf cart is on a guide line, a shift to a manual steering mode is performed even if a selection means is operated. An object of the present invention is to provide a guided golf cart that operates only in a guidance mode on a guidance line and has improved safety even when operated by a player unfamiliar with the operation.

[0005]

According to a first aspect of the present invention, there is provided a guide type golf cart in which a traveling direction of a golf cart body is determined based on a detection signal from a detection unit for detecting a magnetic field generated in a guide wire embedded in a road surface. And a manual steering mode in which the golf cart is driven by operating means for instructing the running direction of the golf cart independently of the detection output of the detecting means. This is achieved by providing a selection means for selecting a mode and a manual steering mode, and providing a switch for selecting a guidance mode regardless of the selection of the selection means.

Thus, when the manual steering mode is selected,
When the vehicle travels irrespective of the guide line by operating the operation means and the guidance mode is selected, the vehicle travels along the guide line based on the output of the detection means for detecting the magnetic field generated in the guide line embedded in the road surface. When the switch is operated, the manual steering mode is not selected and the vehicle travels only in the guidance mode. Therefore, even when a person who is not accustomed to steering the golf cart operates the vehicle, the operation can be safely performed without erroneous operation.

A guided golf cart according to a second aspect of the present invention travels by instructing the traveling direction of the golf cart main body based on a detection signal from a detecting means for detecting a magnetic field generated in a guide wire embedded in a road surface. A golf cart main body including a guide mode and a manual steering mode in which the golf cart main body travels by operating means for instructing a traveling direction of the golf cart main body irrespective of a detection output of the detection means. This is achieved by providing a selection means for selecting a mode, and providing a switch for switching between a state in which selection by the selection means is possible and a state in which only the guidance mode is selected regardless of the selection of the selection means.

Thus, when the manual steering mode is selected,
When the vehicle travels irrespective of the guide line by operating the operation means and the guidance mode is selected, the vehicle travels along the guide line based on the output of the detection means for detecting the magnetic field generated in the guide line embedded in the road surface. Then, by switching the switch, a state in which one of the guidance mode and the manual steering mode can be selected, and the manual steering mode is not selected,
A state in which only the guidance mode is selected can be selected.
Therefore, even if the golf cart is operated by a person who is not accustomed to steering, for example, when the golf cart is operated by a person who is not accustomed to the steering, a safe driving can be performed without erroneous operation.

A guided golf cart according to a third aspect of the present invention travels by instructing the traveling direction of the golf cart main body based on a detection signal from a detecting means for detecting a magnetic field generated in a guide wire embedded in a road surface. A golf cart main body including a guide mode and a manual steering mode in which the golf cart main body travels by operating means for instructing a traveling direction of the golf cart main body irrespective of a detection output of the detection means. A selection means for selecting a mode is provided, and a switch for selecting a guidance mode regardless of the selection of the selection means is provided, or a state in which selection by the selection means is possible, and only a guidance mode regardless of selection of the selection means. A switch for switching between a selected state and a key for operating the switch is provided, and when the guidance mode is selected by the switch, The key is achieved by removable from the switch.

[0010] Thus, if the key switch is turned off and the key is removed while the golf cart is on the guide line,
Only works in guidance mode. Even if the operation lever is moved to the position of the manual mode, the mode does not shift to the manual steering mode, and only the automatic steering is performed on the guide line, and it is not necessary to perform the steering, so the player who is not used to the operation can operate. Even if you do, the golf cart will not drop into the pond and it is very safe.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The guided golf cart of the present invention will be described in detail below based on embodiments. 9 and 10,
Reference numeral 1 denotes a main body, on which drive wheels (rear wheels) 2 are provided on both rear sides, a drive motor 3 (not shown in the figure) for driving the drive wheels 2 therein, a lead storage battery as a power source thereof, and a control circuit A board and the like are mounted. A mounting stay 4 is provided in front of the main body 1, and a caster 5 is supported on the stay 4 so as to be rotatable with respect to the mounting stay 4, in other words, the main body 1. A (front wheel) 6 is rotatably supported.

An angle control motor 7 is mounted on the mounting stay 4. A first pulley 8 is fixed to the motor shaft, and a second pulley 9 is fixed to the caster 5 shaft. The rotation of the angle control motor 7 is transmitted to the caster 5 by being connected at 10, and the angle of the caster 7 with respect to the main body 1 is controlled.

Reference numeral 11 denotes a volume mounted on the mounting stay 4, the rotation axis of which is connected to the motor shaft of the angle control motor 7 via a timing belt 12, and the volume 11 causes the main body 1 of the caster 5 to move. The angle with respect to is detected.

A support plate 13 is fixed to the caster 5 and protrudes forward of the caster 5. A pair of detection coils 14a and 14b equidistant from the center are respectively provided at right and left ends of the support plate 13 at predetermined positions. Attached to.
The pair of detection coils 14a and 14b are connected to an induction wire 15 buried in a road surface by passing an alternating current through the induction wire 15a.
This detects the alternating magnetic field radiated from the main body 1 and controls the angle control motor 7 based on the deviation of the detected output.
Is controlled with respect to the angle of the caster 5.

Reference numeral 16 denotes a handle extending rearward from the main body 1, and a brake lever 17 is disposed near the handle. Reference numeral 18 denotes a control box provided on the handle 16, and as is apparent from the front view shown in FIG. 3, a main operation unit 19 is disposed on the left side, and a speed control unit 20 is disposed on the right side.

The main operation unit 19 includes a power switch 21,
A sensor 23 detects the magnetic force of a magnet 22 buried as a mark of a predetermined stop point near the road surface where the guide wire 15 is buried, and disables the station stop mode for stopping the golf cart and the sensor output to disable the station. And a power handle selection switch 25 for selecting whether or not to perform manual steering by operating an operation lever 32, which will be described later. Reference numeral 19 is covered with a lid 26 so as to be freely opened and closed.

The speed control unit 20 includes a low-speed switch 27 for switching the output of the drive motor 3 and a medium-speed switch 2 during manual steering by operating an operation lever 32 to be described later.
8. It has a high-speed switch 29. 30 is the main body 1
This is a start switch for starting the traveling of the vehicle. Reference numeral 31 denotes a key switch formed on the side surface of the control box 18, which can be turned ON / OFF by a detachable key. Only when the key switch 31 is turned ON, a manual steering mode and a guidance mode, which will be described later, are selected. Becomes possible, and O
The configuration is such that the manual steering mode cannot be selected during FF.

An operation lever 32 has one end supported on the upper surface of the control box 18 and an operation part 3 made of synthetic resin at its free end.
3 is rotatably supported, a first position (see a solid line position in FIGS. 3 and 4 and FIG. 2) in which the operation unit 33 is directed upward on the near side of the user, and the operation unit 33 is moved from the user. The operation lever 3 is pressed into the recess 34 of the remote control box 18 to be pressed.
2 is rotated between a second position (see a broken line position in FIGS. 3 and 4) for preventing the movement of the second member 2.

The operating lever 32 is swingably supported in the first position so as to swing left and right.
(See FIGS. 6 and 7), and the volume 35
Is compared with the output of the volume 11 for detecting the angle of the caster 5, and the angle control motor 7 is controlled so that both outputs become the same.

The operating lever 32 returns to the center position when the right and left swinging power is released at the first position. In the second position, the operating lever 32 presses the operating portion 33 into the recess 34 of the control box 18 to prevent the operating lever 32 from vibrating.

In FIG. 4, reference numeral 36 denotes a synthetic resin holder containing a magnet 37, which is embedded in a surface of the operation lever 32 facing the control box 18 when the operation lever 32 is located at the first position. I have. Reference numeral 38 denotes a synthetic resin holder containing a magnet 39. When the operation lever 32 is positioned at the second position, the control box 18 of the operation lever 32 is controlled.
Buried in the surface opposite to The holders 36, 3
The portion protruding from the operating lever 32 of No. 8 is formed in a substantially hemispherical shape.

Reference numeral 40 denotes a hall IC arranged at a position facing the holder 36 in the control box 18 when the operation lever 32 is positioned at the first position and is neutralized.
By moving the operation lever 32 to the first position, the Hall IC 40 detects the magnetic force of the magnet 37 and selects the manual steering mode.

Reference numeral 41 denotes a Hall IC disposed at a position facing the holder 38 in the control box 18 when the operation lever 32 is located at the second position.
By moving 2 to the second position, the Hall IC 41 detects the magnetic force of the magnet 39 and selects the induction mode.

On the upper surface of the control box 18, when the operation lever 32 swings at the first position, the operation lever 32 is operated around the swing center of the operation lever 32 at a position where it comes into contact with the hemispherical projection of the holder 36. An arc-shaped groove portion 42 is formed over the swing range of the lever 32, and the operation lever 3 is formed by this groove portion.
2 prevents the upper surface of the control box 18 from being damaged when the swing operation is performed.

Next, the support structure of the operation lever 32 will be described in detail with reference to FIGS. Reference numeral 43 denotes a fixing bracket fixed to the handle 16 by screws, which is bent in a substantially U-shape, and allows a screw 44 fixed to the upper wall surface to pass through a bracket 45 fixed to the handle 16, and The fixing bracket 43 is fixed by screwing a nut 46 to the fixing member 43.

A synthetic resin base 47 of the control box 18 is screw-fixed to the upper wall surface of the fixing bracket 43, and a lower cover 48 for covering the lower surface of the base is fixed to the base. 43. The base 47 has a circular opening 49 formed substantially at the center thereof, and an annular ridge 50 is formed on the periphery of the closed portion integrally with the base 47 upward.

Reference numeral 51 denotes a rotating shaft which penetrates the upper and lower wall surfaces of the fixing bracket 43 and is rotatably supported by the upper and lower wall surfaces. 52 is fixed by caulking, and a pin 53 is fixed by caulking to the support bracket near the rotating shaft 51. The support fitting 52 projects from the opening 49 above the base 47.

Numeral 54 is fitted on the outer periphery of the support bracket 52,
An annular rib 55 is formed on a lower surface of the base 47 in the form of a synthetic resin hemispherical cover that covers the opening 49 of the base 47 and is adjacent to the outer periphery of the ridge 50 on the periphery of the opening 49. 55 and the ridge 50 prevent rain or the like from entering the control box 18 through the opening 49.

Reference numeral 56 denotes a pair of support pieces provided on the operation lever 32, and the slits 5 formed on the cover 54.
The operation lever 32 is rotatably supported by a shaft 56 which is inserted in the cover 7 and penetrates the cover 54.
The slit 57 formed in the cover 54 is
The base is formed so as not to communicate with the inside and to be inclined so as to become lower toward the outer periphery, so that rain or the like dropped on the slit 57 does not enter the inside of the cover 54 but follows the inclination of the bottom of the slit 57. Guided on 47.

Numerals 59 and 60 are laminated at one end.
One end is formed of a pair of left and right metal arms rotatably supported on the upper wall surface of the fixing bracket 43, and bent pieces 61 and 62 are formed by bending on opposing surfaces. 6
The pushers 63 and 64 having a depth of half of the material thickness of 0 are formed so that the lower arm 59 protrudes upward and the upper arm 60 protrudes downward.

Reference numeral 65 denotes a pusher 6 for the arms 59 and 60.
A pair of pins, one ends of which are caulked and fixed so as to protrude downward from the third and the third 64, and the other end is positioned at the same height as the fixing bracket 43. That is, the arms 59,
60 is supported with one end thereof laminated, but the pusher portions 63 and 64 to which the pin 65 is fixed are attached to the lower arm 59.
Are formed upward at a depth of half the material thickness of the arm 59, and the lower arm 60 is formed at a depth of half the material thickness of the arm 60 downward. When the pin 65 is fixed by caulking, the other end is positioned at the same height as the fixing bracket 43 as shown in FIG. Therefore, the spring body 66 described later is not installed obliquely, and the turning operation of the arms 59 and 60 can be performed favorably.

Reference numeral 66 denotes a spring body which locks both ends to the pin 65 and urges the arms 59 and 60 toward each other. The rotating shaft 51 is provided between the bent pieces 61 and 62 of the arms 59 and 60. And the pin 53. Therefore, when the operation lever 32 is swung in the left-right direction, the pin 53 near the rotation shaft 51 is moved to one of the arms 59,
The folding pieces 61 and 62 of the 60
Is rotated against the urging force of the spring body 66, so that the rotating shaft 5
1 rotates. For example, when swinging to the left, the pin 53
To rotate the arm 60 or the spring body 66 against the urging force. On the other hand, the other arm 59 does not rotate because the bent piece 61 is in contact with the rotating shaft 51.

When the operating force on the operating lever 32 is released, the arms 59, 60 are actuated by the urging force of the spring body 66.
Return, the pin 53 is suppressed, the rotating shaft 51 returns to the neutral position, and the operation lever 32 returns to the neutral position. Reference numeral 67 denotes a pair of positioning projections fixed to the upper wall surface of the fixing bracket 43 and protruding upward. The positioning projections 67 come into contact with the arms 59 and 60 to regulate the rotation range of the arms, and swing the operation lever 32. The range is regulated. In the present embodiment, the operation lever 32 is restricted to a range of up to 60 ° on both the left and right sides by the projection 67, so that the golf cart does not roll over due to an excessively sharp operation.

The volume 35 is fixed to the lower wall surface of the fixing bracket 43, and its rotating shaft extends below the lower wall surface through the lower wall surface and is fixed to the lower end of the first gear 68 to the lower end of the rotating shaft 51 at the lower end. The second gear 69 is meshed, and the rotation of the rotary shaft 51 is transmitted to the volume 35 by meshing the first gear 68 and the second gear 69.
The angle control motor 7 for controlling the angle of the caster 5 with respect to the main body 1 by changing the output from the caster 5 is controlled, and the direction of the caster 5 is controlled. The wiring from the control box 18 is connected to the inside of the main body 1 through the inside of the handle 16 from an opening (not shown) formed in the handle 16.

Next, the circuit will be described with reference to FIG. 7
Numeral 0 denotes a guide wire detecting means for detecting a guide wire 15 buried in the road surface, and the detecting coils 14a, 1 for detecting an alternating magnetic field generated when an alternating current is supplied to the guide wire 15.
4b and amplifier circuits 71a and 71 for amplifying the detection output.
b and a comparison circuit 72 for comparing the operation of the amplified output. The duty of the chopper circuit 73 is controlled based on the deviation output of the comparison circuit 72, and the rotation of the angle control motor 7 is controlled via a drive circuit 74.

Numeral 75 denotes a traveling distance measuring means for measuring a traveling distance, and has a magnetic sensor 77 for detecting a magnetic flux from a magnet 76 attached to the driving wheel 2 or the guiding wheel 6. The output is the FV conversion circuit 78
Is converted to a DC voltage and output to a control circuit means 95 described later as a traveling distance signal and a speed signal.

Numeral 79 denotes proximity detection means for detecting the proximity of an obstacle located in front of the main body 1, and an ultrasonic wave radiating means disposed in front of the main body 1 or an ultrasonic wave radiated from the radio wave generating means. A sensor 80 for detecting a reflected wave due to the Doppler effect of a radio wave, and a comparison circuit 81 for comparing the output of the sensor with a predetermined value. The comparison circuit 81 compares the output of the sensor 80 with a predetermined value. To detect the distance to the obstacle, and when the obstacle approaches within the separation distance corresponding to the predetermined value, the control circuit means 9 described later.
5 and is stopped by the control circuit means 95.

Reference numeral 82 denotes a detecting means for detecting a magnetic flux from the magnet 22 as a signal generating source buried near the guide wire 15 as a preset stop point. The output is amplified by the amplifier circuit 83 and the waveform is shaped by the waveform shaping circuit 84. The output of the waveform shaping circuit 84 is output to the control circuit means 95 described later.
The control circuit means 95 stops running based on the output of the detection means 82.

At this time, the control circuit means 95 operates the station passage selection switch 24 to operate the station stop mode in which the stop is performed based on the output of the detection means 82 and the station passage mode in which the vehicle travels irrespective of the output of the detection means 82. And the traveling is controlled based on the selected mode.

Reference numeral 85 denotes a clock signal generating means for generating a clock signal for the operation of the control circuit means 95. The clock signal generating means 85 outputs this clock signal to a timer means 86 for counting based on a command from the control circuit means 95. Is output to the control circuit means 95.

Reference numeral 87 denotes manual steering means for controlling the angle of the caster 5 with respect to the main body 1 by manual operation, and the volume 3 controlled by the swinging operation of the operation lever 32.
5, an amplifier circuit 88 for amplifying the output, a volume 11 for detecting the angle of the caster 5, an amplifier circuit 89 for amplifying the output, and a comparison circuit 90 for differentially comparing the amplified outputs. ing. The duty of the chopper circuit 91 is controlled based on the deviation output of the comparison circuit 90, and the rotation of the angle control motor 7 is controlled via the drive circuit 74.

Reference numeral 92 denotes control of the angle control motor 7;
Control based on the guide line detecting means 70, that is, a guide mode;
The control based on the manual steering means 87, that is, the switching means for switching between the manual steering mode and the pair of Hall ICs 4
0, 41, and a switching circuit 93.
3 determines whether the operating lever 32 is located at the first position or the second position based on the output from the Hall ICs 40 and 41, and determines whether the operating lever 32 is located at the first position. When the operating lever 32 is in the second position, only the output from the manual steering means 87 is output to the driving circuit 74, and when the operating lever 32 is located at the second position, only the output from the guiding line detecting means 70 is output. Output.

When the operation lever 32 is swung when the manual steering mode is selected, the Hall IC 40 does not detect the magnetic force of the magnet 37 embedded in the operation lever 32.
When the operation lever 32 is moved to the first position, the switching circuit 93 switches to the manual steering mode when the Hall IC 40 detects the magnetic force, and thereafter maintains the manual steering mode regardless of the detection of the magnetic force. ing.

When the key switch 31 is turned off, the switching circuit 93 turns on the manual steering means 8.
There is a switch means for shutting off the output from the switch 7, and when the key switch 31 is turned off, the mode is set to the induction mode.

A control unit 94 includes the power switch 21, the station passage changeover switch 24, the power handle selection switch 25, the low speed switch 27, the medium speed switch 28, the high speed switch 29, and the start switch 30. Control circuit means 95 based on
Output.

The low-speed switch 27 and the medium-speed switch 2
8. The high-speed switch 29 performs speed control when the manual steering mode is selected. The control unit 94 has means for storing the operation of the low-speed switch 27, the medium-speed switch 28, and the high-speed switch 29, and sets the guidance mode. When the mode is switched to the manual steering mode again after that, the speed stored in the storage means is output to the control circuit means 95, and the vehicle is driven at the speed set when the previous manual steering mode was selected.

Reference numeral 95 denotes a control circuit means which includes a microprocessor, and based on each input signal, a drive motor 3 for driving the drive wheels 2 and a brake means 97 via a drive circuit 96.
Is controlled. Further, the control circuit means 95 determines that one of the Hall ICs 40 and 41 has not detected a magnetic force, that is, whether the operation lever 32 is in the neutral position in the first position or in the second position. If the start switch 30 is not
Even if you operate, it will not start.

Reference numeral 98 denotes an operation based on the output from the control circuit means 95 based on the operation of the power switch 21, the station passage changeover switch 24, the power handle selection switch 25, the low speed switch 27, the middle distance switch 28, the high speed switch 29, and the start switch 30. A display circuit 99 for displaying the status, a display unit 99 that is turned on by operating the power switch 21, a display unit 100 that is turned on by operating the station passage changeover switch 24, a display unit 101 that is turned on by operating the power handle selection switch, a low speed switch 27
The display unit 102, which is turned on by the operation of
Display unit 103, high-speed switch 29 which is turned on by operation of
The display unit 104 that is turned on is controlled by the operation (see FIG. 3).

Next, the operation will be described. When the operating lever 32 is moved to the second position, the hole I corresponding to the second position
C41 detects the magnetic force, and based on the output, a switching circuit 93
Is switched to the guidance mode in which only the output from the guidance line detecting means 70 is output to the drive circuit 74. When the start switch 30 is operated in this guidance mode selection state, the output is output to the control circuit means 95, and the control circuit means 9
5 drives the drive motor 3 via the drive circuit 96 to drive the golf cart.

The detection coils 14a and 14b detect an alternating magnetic field generated in the induction wire 15, control the angle control motor 7 based on the difference between the detection outputs, and control the angle of the caster 5 with respect to the main body 1; The golf cart travels along the guide line 15.

When the guidance mode is selected, the operation lever 32 is press-fitted into the recess 34 of the control box 18 so that the operation lever 32 vibrates due to vibration during traveling, and the control lever 18 is vibrated. And operation lever 32
There is no noise between the two. Further, since the operation lever 32 is press-fitted into the operation portion 33 or the concave portion 34, the operation lever 32 cannot be swung, so that the operation lever is not erroneously operated and the erroneous operation of the operator can be prevented.

When the operating lever 32 is moved to the first position,
The Hall ICs 40 and 41 corresponding to the first position detect the magnetic force of the magnet 37, and based on the output of the Hall IC 40, the switching circuit 93 outputs only the output from the manual steering means 87 to the drive circuit 74.
To the manual steering mode that outputs to When the start switch 30 is operated in the manual steering mode selection state, the output is output to the control circuit means 95, and the control circuit means drives the drive motor 3 via the drive circuit 96 to drive the golf cart.

When the operator operates the operation lever 32 in the direction in which the operator wants to travel, the volume 35 is controlled in accordance with the operation of the operation lever 32 and the volume 35 is controlled.
5 is compared with the output of the volume 11 for detecting the angle of the caster 5 with respect to the main body 1, and the drive circuit 74 controls the angle control motor 7 according to the comparison value. Accordingly, the angle of the caster 5 with respect to the main body 1 is controlled to steer the traveling direction to the direction desired by the operator.

In this imperial steering mode, the driver operates the control lever 32 so as to press it.
The hemispherical projection of the holder 36 mounted on the operation lever 32 is brought into contact with the groove 42 formed in the control box 18, and the other parts are not brought into contact, so that the upper surface of the control box 18 is damaged. And the appearance can be maintained in a good state for a long period of time.

Further, since the groove 42 is formed over the swing range of the operation lever 32, the groove 42 is
By indicating the swing range of the control lever 32,
It is possible to prevent erroneous operation such as swinging and damaging the swing beyond the swing range. Further, the formation of the groove 42 brings the Hall IC 4O and the magnet 37 closer to each other, so that the Hall IC 40 can more reliably detect the magnetic force and reliably switch the mode.

Even if the operator intends to switch the operation lever 32 to the first position or the second position, the switching is not performed. In particular, even if the operator intends to switch from the first position to the second position, When the operating portion 33 of the lever 32 is not completely pressed into the recess 34 of the control box 18 and the start switch 30 is operated, the vehicle may run in the previous mode. Since the start signal is not accepted unless the ICs 40 and 41 detect the magnetic force, the vehicle does not run in the previous mode and the safety can be improved.

When playing due to lack of caddy, the caddy may not be attached. In this case, the player must operate the golf cart. May drop into the pond. However, if the key switch 31 is turned off and the key is removed, even if the operation lever 32 is moved to the first position, the mode does not shift to the manual steering mode. No carts are dropped into the pond.

When the key switch 31 is operated as described above, the operation is performed in a state where the golf cart is on the guide line. Normal,
When a golf cart is unloaded from a garage or the like and moved to a location where a guide line is located, a person accustomed to the operation uses the manual steering mode. Then, the golf cart is moved on the guide line, and when the user is a person unfamiliar with the operation such as a player, the key switch 31 is operated to operate only in the guide mode. By doing so, only automatic steering is performed on the guide line, and it is not necessary to perform steering, so that it is very safe.

Next, the operation for unloading the golf cart delivered to the garage will be described. When the power switch 21 is operated, the control circuit means 95 is in a state where the brake is applied by the brake means 97. In this state, the brake is released by operating a brake release switch (not shown) provided on the back surface of the control box 18, and the operation lever 32 is moved to the first position to select the manual steering mode.

When the operating lever 32 is not operated, the operating lever 32 is located at the neutral position. Therefore, the caster 5 is fixed in a direction parallel to the main body 1, and the operating lever 32 is maintained at the neutral position. Pull the handle 16 while keeping the golf cart straight back and leave the store. Further, if necessary, the direction of the caster 5 can be changed by operating the operation lever 32, and the golf cart can be backed out in a curved manner to leave the golf cart.

FIG. 11 is a circuit diagram showing a second embodiment. The same parts as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. Numeral 105 is a guide wire detecting means for detecting a guide wire 15 buried in the road surface, detecting coils 14a and 14b for detecting an alternating magnetic field generated in the guide wire 15 by passing an alternating current through the guide wire 15, and detecting outputs thereof. And an amplifying circuit 106a and 106b for amplifying the output signal. The output from the inductive line detecting means 105 is supplied to a driving circuit 11 via a switching means 110, a comparing circuit 112, and a chopper circuit 113 which will be described later.
4 and the driving circuit 114 controls the angle control motor 7
To control the angle of the caster 5 with respect to the main body 1,
The golf cart travels along the guide line 15.

Reference numeral 107 denotes a manual steering means for controlling the angle of the caster 5 with respect to the main body 1 by a manual operation. The volume 35 is controlled by the swing operation of the operation lever 32, and the amplification circuit 108 amplifies the output. , A volume 11 for detecting the angle of the caster 5 and an amplifier circuit 109 for amplifying the output thereof.
The output is output to the drive circuit 114 via the comparison circuit 112 and the chopper circuit 113, and the angle control motor 7 is driven by the drive circuit 114 to control the angle of the caster 5 with respect to the main body 1. It is designed to steer.

Reference numeral 110 denotes switching means for switching the control of the angle control motor 7 between control based on the guide line detecting means 105, ie, the guidance mode, and control based on the manual steering means 107, ie, the manual steering mode. The switching circuit 111 includes a pair of Hall ICs 40 and 41 and a switching circuit 111. The switching circuit 111 determines whether the operation lever 32 is located at the first position or the second position based on the output from the Hall ICs 40 and 41. It is determined whether the operation lever 32 is at the first position, and only the output from the manual steering means 107 is output to the drive circuit 114 via the comparison circuit 112 and the chopper circuit 113, and When the operation lever 32 is located at the second position, only the output from the guide line detection means 105 is driven via the comparison circuit 112 and the chopper circuit 113. And outputs the road 114.

A comparison circuit 112 compares the amplified output of the guide line detecting means 105 or the amplified output of the manual steering means 107. The duty of the chopper circuit 113 is controlled based on the deviation output of the comparison circuit 112, The circuit 114 controls the angle of the drive control motor 7 with respect to the main body. With the circuit configuration of the second embodiment, the comparison circuits 72 and 90 and the chopper circuits 73 and 91 provided on the output side of the guide line detecting means 70 and the manual steering means 87 in the first embodiment, respectively. Can also be used, and the circuit configuration can be simplified.

[0065]

As described above, in the guide type golf cart of the present invention, the guide mode in which the vehicle travels along the guide line and the manual steering mode in which the vehicle is steered by operating the operation means are appropriately selected as necessary. When the manual steering mode is selected, the vehicle travels regardless of the guide line by operating the operation means. When the guidance mode is selected, the vehicle travels along the guidance line based on the output of the detection means for detecting the magnetic field generated in the guidance line embedded in the road surface. By switching the switch, it is possible to select a state in which any one of the guidance mode and the manual steering mode can be selected and a state in which the manual steering mode is not selected and only the guidance mode is selected.

When the key switch is turned off by operating the key switch in a state where the golf cart is on the guide line and the key is removed, the key switch operates only in the guide mode. No transition,
Since only automatic steering is performed on the guide line, and it is not necessary to perform steering, even when a player who is not used to operating the golf player operates the golf cart, the golf cart does not drop into the pond and it is very safe.

[Brief description of the drawings]

FIG. 1 is a circuit diagram of a golf cart according to the present invention.

FIG. 2 is a perspective view of a control box of the golf cart of the present invention.

FIG. 3 is a top view of the control box.

FIG. 4 is a side view of the control box.

FIG. 5 is an exploded perspective view of the control box.

FIG. 6 is a sectional view of a main part of the control box.

FIG. 7 is an exploded perspective view of the inside of the control box.

FIG. 8 is a perspective view of a main part.

FIG. 9 is a perspective view of a caster portion.

FIG. 10 is an external perspective view.

FIG. 11 is a circuit diagram showing a second embodiment of the present invention.

[Description of Signs] 1 Golf cart main body 2 Drive wheel 3 Drive motor 5 Caster 6 Guide wheel 7 Angle control motor 14a, 14b Detection coil 15 Guide wire 16 Handle 17 Brake lever 18 Control box 19 Main operation unit 20 Speed control unit 31 Key 32 Operating lever 33 Operating section 40, 41 Hall IC 70, 105 Guidance line detecting means 74 Drive circuit 75 Travel distance measuring means 79 Proximity detecting means 82 Stop point magnet detecting means 87, 107 Manual steering means 91, 113 Chopper circuit 95 Control Circuit means

Claims (3)

(57) [Claims] A guidance mode in which a traveling direction of a golf cart body is instructed based on a detection signal from a detection means for detecting a magnetic field generated in a guidance line embedded in a road surface, and a detection output of the detection means. A golf cart main body provided with a manual steering mode for traveling by operating means for instructing a traveling direction of the golf cart main body independently, wherein a selection means for selecting a mode between the guidance mode and the manual steering mode is provided, and the selection means is provided. An induction type golf cart comprising a switch for selecting an induction mode regardless of the selection of a golf cart. 2. A guidance mode in which a traveling direction of a golf cart body is instructed based on a detection signal from a detection means for detecting a magnetic field generated in a guide line embedded in a road surface, and a detection output of the detection means. A golf cart main body provided with a manual steering mode for traveling by operating means for instructing a traveling direction of the golf cart main body independently, wherein a selection means for selecting a mode between the guidance mode and the manual steering mode is provided, and the selection means is provided. And a switch for switching between a state in which only the guidance mode is selected irrespective of the selection of the selection means. 3. The guidance system according to claim 1, wherein a key for operating the switch is provided, and the key is removable from the switch when the guidance mode is selected by the switch. Golf cart.