JPH1099005A - Automatic side boom lowering device for pesticide sprayer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dissolve the failure that the terminating part of a working machine is brought into contact with other buildings or standing trees, etc., and damaged due to that the terminating part of the folded working machine is protruded behind an operator and traveling can not be performed while directly viewing the height in the case of folding the wide working machine attached to the front part of a moving farm machine to the side part of the moving farm machine at the time of traveling on a road and performing traveling. SOLUTION: A pesticide sprayer 4 composed of a center boom 2 and side booms 3 is freely vertically movably disposed to the front part of a machine body 1 in a side part projected shape from the machine body 1, the side booms 3 are made freely foldable along both side parts of the machine body 1 to the center boom 2 in a shape that a rear part is raised, a detector 5 for detecting the folded state is provided and the rear end parts of the side booms 3 are automatically lowered by the detection of the detector 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic lowering device for a side boom of a control sprayer. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling safety mechanism for performing a pest control operation by attaching a wide control spraying device in the left and right direction in front of a fuselage and then folding a side boom to the side of the fuselage to travel on a road.

[0002]

2. Description of the Related Art The storage position of a conventional control spraying device at the end of operation of a control spraying device is changed by a driver operating each of the actuators to change the position. If the protruding end of the boom was at a high position, it was likely to be damaged by contact with other buildings or standing trees.

[0003]

SUMMARY OF THE INVENTION The present invention is to solve such a problem of the conventional device, and has taken the following technical means. That is, a control spraying device 4 including a center boom 2 and side booms 3 and 3 at the front of the body 1.
Is disposed so as to be movable upward and downward from the body 1 so as to be laterally protruded from the body 1, and the side boom 3 is freely foldable along the both sides of the body 1 with the rear part rising upward with respect to the center boom 2. A detector 5 for detection is provided, and the rear end of the side booms 3, 3 is automatically lowered by the detection of the detector 5, so that the configuration of the side boom automatic lowering device of the control spraying device is provided. .

[0004]

FIG. 1 shows a mobile agricultural machine 8 in which front and rear wheels 6 and 7 are equal-diameter riding control machines, and the present invention is folded into a control spraying device 4 attached to the front of the body 1 of the mobile agricultural machine 8. In. Front and rear wheels 6, 6 and rear wheels 7, 7 are provided on the front and rear of the body 1, which is the main frame of the mobile agricultural machine 8, as shown in the side view. 9 is mounted and the bonnet 1
It is covered by 0 mag. A seat 11 is provided above the rear wheels 7, 7, and when a driver sits down, a hood 10 in front of the driver is seated.
The handle 12 is located at the rear. A floor 13 is a place where the driver places his / her feet. An instrument panel 14 is provided below the handle 12 at the rear of the hood 10. When the steering wheel 12 is steered left and right, the front and rear wheels 6, 7
Has a configuration of four-wheel steering that is simultaneously steered, and can accurately run on mud in a field according to the steering.

[0005] Around the seat 11 disposed above the floor 13, a chemical solution tank 55 is detachably mounted on the floor 13. Reference numeral 15 denotes a receiving stand, which is a box-shaped frame attached to a hitch 17 at the rear of a two-point link 16 for ascending and descending, and a PTO shaft for external power take-out (not shown) provided with a pump 18 for liquid inside. Driven, chemical tank 5
5 or a chemical solution containing a medicine is separately supplied to a central boom 2 and left and right side booms 3 and 3 constituting a part of a controlling and spraying device 4 in the front part of the body 1 via piping (not shown) provided independently. Is being pumped.

[0006] Support frames 20, 20 project upward from the front frame 19 on the left and right sides of the bonnet 10 at the front of the body 1, and upper and lower links 21, 20 extend forward from the left and right support frames 20, 20. 22 project substantially parallel. Up and down link 2
A front hitch 23 is attached to the ends of the pins 1 and 22 by pins.
The upper and lower links 21 and 22 and the front hitch 23 are moved up and down by an expansion and contraction operation of an expansion and contraction actuator 25 which is a geared motor attached between the lower link 22 and the front hitch 23.

[0007] The front hitch 23 is a mounting tool for the work equipment. The front hitch 23 is provided between upper and lower side frames 26 and 26 and upper and lower rods 27 and 28.
The hook plates 29, 29 of the control spray device 4, which will be described later, are engaged with the lower rod 28 so that the mounting pins 30, 30 are connected.
It is fixed with. The hook plates 29, 29 protrude from a main frame 31 configured to be substantially wider than the front width of the movable agricultural machine 8, and the main frame 31 is attached to the front hitch 23 via the hook plates 29, 29 so as to be movable up and down. I have. Furthermore, the main frame 31
, A central boom 2 is disposed substantially in parallel, and the central boom 2 has a plurality of nozzles 32, 32. . . Is attached so that the above-mentioned pressurized water can be sprayed on the surface of the field.

[0008] At the left and right ends of the main frame 31, supporting shafts 33 are provided.
The telescopic device 34, such as an electric geared motor, switches between a working state extending linearly to the left and right sides as shown in FIG. 4 and a non-working state folded 90 degrees as shown by the solid line in FIG.
The user changes the posture by operating. Reference numeral 35 denotes a mounting plate, which is integrally protruded from the main frame 31. Reference numeral 36 denotes a movable plate, which protrudes near the support shaft 33 of the side boom 3 and
A telescopic member 34 is attached between the movable plate 36 and the movable plate 36.

[0009] As shown in FIGS. 3 and 4, the booms 3 are substantially parallel to the folded position of the side boom 3 in the non-working state.
7 project from both ends of the main frame 31 at right angles. Handles 38, 38 are provided at the protruding tip of the column 37, and the left and right grips 38, 38 are lifted by an operator to attach the hook plates 29, 29 to the front hitch 23. The column 37 is provided with the detector 5 which is an on / off switch. When the side boom 3 is in a folded state, the switch of the detector 5 is pressed to notify that the detector is folded. Numeral 39 denotes a wheel, which is a control spray device 4 which is a center boom 2 and left and right side booms 3 and 3.
When the is folded and removed from the mobile farm machine 8, the grip 3
The driver grips portions 8, 38 to facilitate movement on the ground.

The electric circuit will be described with reference to FIG. An operation panel 40 provided on the right side near the seat 11 is provided with left and right open / close switches 41 and 42 for independently opening and closing the left and right side booms 3 and 3 and a boom up / down switch 43 for vertically moving the front hitch 23. Has been established. Then, the boom up / down switch 43 and the telescopic actuator 25
Are connected by an electric circuit, and the driver can freely move the front hitch 23 up and down, and manually operate the control sprayer 4 attached thereto up and down. The left and right open / close switches 41 and 42 are connected to the left and right telescopic members 34 and 34 by an electric circuit independently of each other, and the left and right side booms 3 and 3 are made to be the same as the center boom 2 by manual operation of the driver. The spread position of the medicine is narrowed by operating the work position to be extended in a straight line in the direction or by folding the one side boom 3 on the upper side of the movable agricultural machine 8 as shown by the imaginary line in FIG. It is possible to perform a manual operation such as working or folding both the side booms 3 to the side of the movable agricultural machine 8 to set them in a non-working posture.

At this time, when the left and right detectors 5 and 5 respectively detect that the side boom 3 has been folded to the side of the movable agricultural machine 8 and transmit it to the CPU 44, the upper end portions of the side booms 3 and 3 project. It automatically descends in the direction shown by the solid line in FIG. In the illustrated example, the automatic lowering operation of the projecting upper ends of the side booms 3, 3 is performed as the entire front hitch 23 is lowered by the automatic contraction of the telescopic actuator 25. The front fulcrum 3 may be turned clockwise as viewed from the direction of FIG. Reference numeral 45 denotes a lower limit detector which detects a lower limit position when the side boom 3 is lowered in the stowed state, and stops the automatic contraction of the telescopic actuator 25 by the detection of the lower limit detector 45. 48 is a battery.

As described above, the manual operation of folding the left and right sides of the side booms 3 and 3 is performed only when the spraying operation is completed, and after this operation, the mobile farm machine travels on the road directly or loaded on a truck or the like. It is conceivable that the rear end of the side boom 3 is automatically lowered during this traveling, so that there is less contact with obstacles such as buildings, standing trees, etc. it can.

An example in which another control structure is added will be described with reference to FIG. Reference numeral 46 denotes an engine stop detector, which transmits the stop of the engine 9 to the CPU 44 by operating the telescopic actuator 25 via the timer 47 for about 5 seconds only during the operation of the timer 47, and moves the front and rear of the side boom 3 forward and backward. The side portion of the seat 11, which is an intermediate portion, is raised or lowered to change the side boom 3 to a position where the side boom 3 does not interfere when the driver gets off the driver's seat of the mobile agricultural machine 8 for a predetermined time.

FIGS. 6 and 7 show another embodiment, which is another embodiment of the turning control when the vehicle travels while spraying, which will be described below. As described above, the mobile agricultural machine 8 in the illustrated example is used.
The front and rear wheels 6 and 7 have a four-wheel steering configuration in which they are simultaneously steered, and front and rear steering angles are detected by front and rear wheel cutting angle sensors 49 and 49 and transmitted to the CPU 44. A turning start switch 5 is provided on an instrument panel 14 below the handle 12.
0, a headland length setting device 51 and a spray width setting device 52 are provided. A to start turning with the ridge E at the field end in FIG.
The length L between the points is manually set by the driver on the headland length setting device 51.
The width T of the central boom 2 and the left and right side booms 3 and 3 attached to the front of the body 1 during the spraying operation is manually set by the spray width setting device 52.

The front and rear wheels 6, 7 are connected to a steering actuator 53.
When the driver turns on the turning start switch 50 at the turning start point A, the vehicle turns automatically with one radius R by automatically controlling the total steering angle according to each set value,
The vehicle turns on a turning locus K including a straight line in a “U” shape. At this time, when the amount of the chemical solution sprayed on the lower part of the side boom 3 on the inner wheel side is large, the spraying on the inner wheel side can be reduced while the turning control is performed by the chemical solution supply control valve 54.
In this turning control, when the moving agricultural machine 8 presses the turning start switch 50 at the edge of the field, the front and rear wheels 6, 7 are automatically set.
Is steered by the required angle, and at the turning completion point B, it moves by the width of (T) almost the interval of the spraying operation width T, and starts the straight spraying of the next process as shown by the arrow C. Waste is reduced.

[0016]

According to the present invention, the following technical effects can be obtained by the above configuration. That is, a control spraying device 4 including a center boom 2 and side booms 3 and 3 at the front of the body 1.
Is disposed so as to be movable upward and downward from the body 1 so that the side boom 3 is freely foldable with respect to the central boom 2 along both sides of the body 1 and the rear portion is raised rearward. A detector 5 for detection is provided, and the rear end of the side booms 3, 3 is automatically lowered by the detection of the detector 5, so that a lateral boom automatic lowering device of the control sprayer is provided. , It is estimated that the spraying operation is completed only by performing the manual operation of simultaneously folding both the left and right sides of the side booms 3 and 3 and the rear end of the side boom 3 is automatically lowered. Without moving, the danger of contacting the upper end of the boom with an obstacle such as a building, a standing tree or the like during traveling is reduced, and the vehicle can be moved safely.

[Brief description of the drawings]

FIG. 1 is an overall side view when a working machine is stored.

FIG. 2 is an enlarged side view of a main part of FIG.

FIG. 3 is an enlarged front view of a main part.

FIG. 4 is an enlarged plan view of a main part and an explanatory diagram of an electric circuit.

FIG. 5 is an explanatory block diagram to which another control is added.

FIG. 6 is an explanatory plan view of turning control of another configuration.

FIG. 7 is a block diagram for explaining FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Airframe 2 Central boom 3 Side boom 4 Control spray device 5 Detector

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masato Nagai 1st Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Engineering Department, Inc.

Claims (1)

[Claims] 1. A control spray device 4 comprising a central boom 2 and side booms 3 at a front portion of the body 1 so as to be vertically movable.
From the center boom 2, the side boom 3 can be freely folded along both sides of the body 1 and the rear part can be folded upward, and a detector 5 for detecting this folded state is provided. An automatic lateral boom lowering device of a control sprayer characterized in that the rear end of the lateral booms (3, 3) is automatically lowered by detection of the detector (5).