JP2019115305A - Chemical spray vehicle - Google Patents

Abstract

[PROBLEMS] In a drug spraying vehicle that spreads drugs while traveling across crops, the step for getting on and off hits the crop while spraying on the field by automatically raising the boarding step used by the worker. Provide a drug sprayer that never happens. In a medicine spraying vehicle, a control boom for spraying a chemical solution and a driving seat are provided on a traveling vehicle body, a medicine tank 30 is provided behind the driving seat, and the left and right front wheels 6 and 6 and left and right rear wheels 7 and 7 run. A step for getting on and off is provided from the traveling vehicle body on the rear side of the rear wheel 7 on one side of the left and right sides, and when the traveling vehicle body travels at a speed equal to or higher than a predetermined value, the motor 120 is driven to rotate the boarding step. Configured. [Selection] Figure 9

Description

  TECHNICAL FIELD The present invention relates to a drug sprayer that sprays a drug to a crop planted in a field.

  The chemical sprayer rides on the riding floor because the riding floor on which the workers board to ride on crops such as vegetables and tobacco such as Chinese cabbage and carrots that grow in the field is located at a high position from a weir scene Steps for getting on and off are provided. In the getting on / off step, a side floor is provided on the side of the machine body, and in the rear portion, upper and lower two steps are provided, and lower steps are folded up and stored.

JP, 2014-73096, A

The landing step described in Patent Document 1 is used by hanging it from the side floor to the lower rear, so that the lower step is up so that the operator does not hit the crop after being used to get on the side floor. It must be folded.
There is a problem that it is difficult to reach and fold hands from the upper side of the side floor to the lower step.

  An object of the present invention is to easily turn the passenger step up and down.

  The above-mentioned conventional problems are solved by the following technical means.

  The invention according to claim 1 is provided with a control boom (40) and a driver's seat (4) for dispersing a drug solution on a traveling vehicle body (2), a medicine tank (30) behind the driver's seat (4) (6, 6) and the right and left rear wheels (7, 7) for the drug sprayer, providing a step for getting on and off (13) from the traveling vehicle body (2) on the rear side of the rear wheel (7) on either side When the traveling vehicle body (2) travels at a speed equal to or higher than a predetermined value, the motor (120) is driven to rotate the getting-on / off step (13) up and down.

  The invention according to claim 2 is the medicine spreader according to claim 1, characterized in that the vehicle speed of the traveling vehicle body (2) is detected by a vehicle speed sensor (133) or a GPS receiver (134).

  The invention of claim 3 is characterized in that, when the traveling vehicle body (2) stops traveling, the motor (120) is driven to lower and turn the getting on / off step (13). It is set as the chemical | medical agent spreader of Claim 2.

  According to the invention of claim 1 and claim 2, it is possible to prevent the plant in the field from being damaged in the step 13 for getting on and off.

  According to the invention of claim 3, in addition to the effect of claim 1 or claim 2, the time and effort for lowering the getting on / off step 13 can be saved.

Left side view of drug sprayer A perspective view from the right front of the drug sprayer The perspective view seen from the left rear upper part of the drug spreader Top view with a part of the drug sprayer omitted Top view showing the spraying operation state of the drug sprayer Enlarged rear view of drug sprayer Another embodiment perspective view of the step for getting on and off Another embodiment perspective view of the step for getting on and off Another embodiment left side view of the drug sprayer Rear view of another embodiment of the step for getting on and off Another embodiment of the step for getting on and off Block Diagram

  A drug sprayer according to an embodiment (embodiment) of the present invention will be described in detail with reference to the drawings. The present invention is not limited by the contents described in the following embodiments. Further, the components described in the embodiments include those which can be easily conceived by those skilled in the art and those which are substantially the same. Furthermore, the configurations described below can be combined as appropriate. In addition, various omissions, substitutions, or changes in the configuration can be made without departing from the scope of the present invention.

  The drug sprayer 1 according to the present embodiment is a work vehicle that sprays a drug in a field while an operator such as a worker gets on the traveling vehicle body 2 and performs a driving operation. As shown in FIGS. 1 to 3, the drug sprayer 1 includes a traveling vehicle body 2, a cabin 20, a drug tank 30, and a control boom 40 for spraying a drug supplied from the drug tank 30 to a field. It is done. In the present embodiment, the traveling direction of the drug dispersion wheel 1 is a direction along the longitudinal direction of the traveling vehicle body 2 and is a direction from the driver's seat 4 to the front glass GF when the drug dispersion wheel 1 travels straight. Further, the vehicle width direction or the left and right direction of the traveling vehicle body 2 is a direction orthogonal to the traveling direction. Further, the vertical direction of the traveling vehicle body 2 is a direction perpendicular to the traveling direction.

  The traveling vehicle body 2 is configured to include a main frame 3, a driver seat 4, a steering wheel 5, a front wheel 6 and a rear wheel 7. The main frame 3 is formed extending in the front and rear of the traveling vehicle body 2. The driver's seat 4 is a seat for the operator to sit on when operating the medicine spreader 1. At an appropriate position around the driver's seat 4, an operation unit 90 for controlling operations such as opening and closing of the control boom 40 and spraying of a medicine is disposed. The steering handle 5 steers at least the left and right front wheels 6 and 6 in response to a turning operation by the operator, thereby changing the traveling direction of the drug dispersion vehicle 1. The front wheels 6, 6 are steered wheels steered by at least a turning operation of a steering wheel.

  In the front wheel 6 and the rear wheel 7, the power of the engine in the bonnet BN is appropriately shifted in the transmission case (not shown), and the shifted power is transmitted and rotationally driven.

  The cabin 20 forms a passenger compartment by surrounding the driver's seat 4 and the peripheral devices, a steering wheel, and the like. The cabin 20 is disposed between the drug tank 30 and the control boom 40. The cabin 20 includes a cabin frame 21 (21a, 21b, 21c, etc.), a cabin roof 22, and left and right opening / closing doors 25L, 25R, and the like.

  The cabin frame 21 is disposed on the left and right sides in the vehicle width direction at the front of the cabin 20 and erected on the main frame 3, and left and right first front frames 21a and 21a, and left and right first front frames 21a and 21a. The left and right second frames 21d and 21d disposed at the rear of and the left and right third frames 21e and 21e disposed at the rear of the left and right second frames 21d and 21d. Further, left and right fourth frames 21b and 21b not provided on the main frame 3 are provided behind the left and right third frames 21e and 21e, and the left and right first front frames 21a and 21a The upper frame 21c connects the upper portions of the two frames 21d and 21d, the left and right third frames 21e and 21e, and the left and right fourth frames 21b and 21b.

  The lower ends of the left and right fourth frames 21b, 21b and the middle part of the left and right third frames 21e, 21e are connected by left and right fifth frames 21f, 21f. The middle portions of the left and right first front frames 21a, 21a are connected by a front connecting frame 21g. The rear connection frame 21h is connected slightly above the lower end portions of the left and right fourth frames 21b, 21b.

  A front glass GF is attached between the front connection frame 21g and the upper frame 21c, and a lower front glass GFu is attached below the front connection frame. Further, a rear glass 57 is provided between the rear connection frame 21 h and the upper frame 21 c, and the rear glass 57 is configured to be able to open and close outward with the upper side as a fulcrum. In addition, the left first glass LG1 is attached between the left first front frame 21a and the left second frame 21d, and between the left third frame 21e and the left fourth frame 21b. The left second glass LG2 is attached, and the right first glass RG1 is attached between the right first front frame 21a and the right second frame 21d, and the right third frame 21e and the right first A condenser 48 for cooling and liquefying a refrigerant for air conditioning is attached between the four frames 21b, and the right second glass RG2 is attached to the lower side of the condenser 48.

  The medicine tank 30 is disposed so as to approach the lower part of the left and right fourth frames 21b and 21b and the lower part of the left and right fifth frames 21f and 21f and further to the rear of the left and right third frames 21e and 21e. At the upper front of the cabin 20, left and right work lights WR1 and WR2 are provided. Further, left and right headlights BFL and BFR are provided at the front of the bonnet BN. The left and right work lights WR1 and WR2 are interlocked with the left and right headlights BFL and BFR. That is, when the left and right work lights WR1 and WR2 are turned on, the left and right headlights BFL and BFR are turned off. Since this does not light simultaneously, the charge / discharge performance can be secured and the battery rise can be prevented.

  The drug tank 30 is a container for containing the drug sprayed from the boom 40. The drug tank 30 is disposed on the rear side of the cabin 20, as shown in FIG. The medicine tank 30 is formed in a U-shape so as to surround the left and right sides and the rear side of the driver's seat 4 as shown in FIG. 4 in a plan view. The drug tank 30 is detachably mounted on the main frame 3. The drug is a liquid in which a fertilizer, an agricultural chemical or the like is dissolved in a solvent (for example, water), and a liquid such as a liquid (for example, water) containing solid content such as a fertilizer or an agricultural chemical.

  As shown in FIG. 5, the control boom 40 sprays the medicine on the front side of the medicine spreader 1. The boom 40 is provided on the front side of the traveling vehicle body 2. The boom 40 is composed of a center boom 40a and side booms 40b and 40b on both sides. The center boom 40 a is disposed on the front side of the drug spreader 1 and extends horizontally in the vehicle width direction of the traveling vehicle body 2. In the center boom 40a, a plurality of nozzles 41a for spraying the medicine in a mist form are disposed at intervals. The side booms 40b are attached to both the left and right sides of the center boom 40a so as to be switchable between a spread posture extending in the vehicle width direction of the traveling vehicle body 2 and a storage posture along both left and right sides of the traveling vehicle body 2. The side booms 40 b are supported by boom receivers 80 disposed on the left and right sides on the rear side of the traveling vehicle body 2 in the storage posture. In the side boom 40b, a plurality of nozzles 41b for spraying the medicine in the form of a mist are disposed at intervals.

  The condenser 48 of the air conditioner is provided at the above-mentioned position to cool the refrigerant, and the liquefied refrigerant is sent to the receiver dryer 55 installed at the rear of the condenser 48.

  As shown in FIG. 2, the air conditioner main body 100 that generates the cooling air is disposed at the ceiling of the cabin 20 and is covered with a cabin roof 22 that covers the top of the cabin 20. As a result, the air conditioner main body 100 can be protected from the splashed chemical solution at the time of control. Further, as shown in FIG. 1, the outside air introducing unit 110 of the air conditioner is provided below the center of the rear of the cabin roof 22. As a result, the outside air can be introduced from the rear portion with less chemical solution scattering. The outside air introducing portion 110 is provided at the rear of the cabin roof 22 and the opening thereof is on the side of the cabin 20. Therefore, it is possible to suppress the intrusion of the drug solution into the cabin 20.

  On both sides of the cabin 20, left and right open / close doors 25L, 25R fitted with glass plates are provided. When the left open / close door 25L is closed, the left open / close door 25L is positioned at a portion surrounded by the left second frame 21d, the left third frame 21e, the upper frame 21c, and the left end of the floor surface ST. To be configured. The right open / close door 25R is symmetrical to the left open / close door 25L, so the description will be omitted.

  The carrier 10 is provided projecting at the rear of the traveling vehicle body 2 and the transport handles 12R and 12L of the pump unit 11 are suspended and attached to left and right support frames 9R and 9L provided at the lower part thereof (FIG. 6). The getting on / off step 13 is mainly used for maintenance work of the drug tank 30 and the boom receiver 80, and the like. In particular, it is used when removing the upper lid 30a of the drug tank 30 and injecting a drug, or inserting a hose or the like to clean the inside of the drug tank 30.

  On the rear side of the left rear wheel 7, the loading / unloading step 13 is removably attached by a spring pin 18 to the carrying handle 12L at a vertical direction of about 70 °. The passenger's step 13 is used to ride on the driver's seat 4 of the traveling vehicle body 2, or the upper lid 30a of the medicine tank 30 is opened to carry out medicine and water supply work.

  It is also possible to provide the two steps 13a and 13b at the upper and lower sides, and to flip up and fix around the spring pin 18 for this getting on and off step 13.

  Further, the length of the passenger step 13 is substantially the same as the width of the carrier 10, and is fixed on the carrier 10 when not in use.

  In addition, in order to get on the driver's seat 4, a dedicated getting on / off step may be provided between the front wheel 6 and the rear wheel 7.

  Another embodiment of the landing step 13 shown in FIG. 7 has a structure in which the lower leg 14 provided with the steps 13a and 13b is slidably connected to the upper leg 15, and the upper leg 15 is provided with the carrying handle 12L of the pump unit 11. A hook 16 is provided for hooking. The slide is performed by pulling the pin 19 to release the connection between the lower leg 14 and the upper leg 15.

  Another embodiment of the passenger step 13 shown in FIG. 8 has a structure in which the lower leg 14 and the upper leg 15 can be folded by the pin 19, and the lower leg 14 is provided with four wheels 17 and can be used as a transport carriage I have to.

  The boarding step 13 may be configured to be able to be suspended from the carrier 10. In this case, the carrier 10 is configured to be suspended from the left side, the right side and the rear side.

  In addition, the passenger step 13 may be configured to be able to be suspended from the main frame 3. In the main frame 3, locking portions for hooking the passenger steps 13 are formed at predetermined intervals.

  By equipping two steps 13 for getting on and off, it becomes possible to use as a ladder when traveling, for example, across a ditch or the like.

  The boarding step 13 may be configured to rotate up and down using the force of a motor (electric motor, hydraulic motor) 120. The vertical rotation refers to the use state and the non-use state (stored state). The position of D shown in FIG. 6 is in the use state, and the position of U is in the stored state.

  FIG. 9 is a left side view of the drug sprayer, showing the use state of the passenger step 13. As shown in FIG. FIG. 10 shows a rear view of the periphery of the passenger step 13, and FIG. 11 shows a plan view of the periphery of the passenger step 13. As shown in FIG. The mounting structure of the motor 120 will be described. The frame 10a is configured below the carrier 10, and the pump unit 11 is attached by the frame 10a and another support member. A plate 121 is provided on the frame 10 a, and a motor 120 is attached to the plate 121. A pivot fulcrum 122 is formed at the top of the passenger's step 13. The pivot fulcrum is attached to the plate 121, and the pivot fulcrum 122 and the output shaft of the motor 120 are connected.

  A lift switch 123 for raising and lowering the passenger step 13 and a switch 124 for lowering it are provided on the right side of the driver's seat 4 (FIG. 4). As a result, even if, for example, the passenger's step 13 is not lifted (stored) and seated on the driver's seat 4, the passenger's step 13 can be easily elevated from within the cabin 20.

  In addition, a lift switch 125 for raising and lowering the passenger step 13 and a switch 126 for lowering the passenger step 13 are provided in the vicinity of the passenger step 13. Specifically, the arm 128 supporting the boom holder 80 is provided with a plate 128, and the plate 128 is provided with a lift switch 125 and a switch 126 for lowering the plate. This improves operability.

If the vehicle travels in a state where the lifting step 13 has not been lifted (stored), the plant planted in the field may get caught and damage or damage to the plant. Therefore, the control device 200 performs detection of switches and sensors, and the control device 200 drives the motor 120 that rotates the lifting step 13 up and down.
Door sensors 129L, 129R are provided on the left and right doors 25L, 25R respectively, and both of the door sensors 129L, 129R enter (the open / close doors are closed) and the seating switch 130 of the driver's seat 4 enters (the driver sits When the vehicle is in the operating state, the motor 120 is driven to raise and store the passenger step 13.

  Further, when the engine key switch is turned on, the motor 120 is driven to raise and store the getting-on / off step 13. Further, when the engine rotation sensor 132 detects the rotation of the engine, the motor 120 is driven to raise and store the getting-on / off step 13. Further, a vehicle speed sensor 133 for detecting the movement of the vehicle is provided, and when the vehicle speed sensor 133 detects a traveling speed equal to or higher than a predetermined speed, the motor 120 is driven to raise and store the getting on / off step 13. Further, a receiving device 134 for receiving radio waves from GPS satellites is provided, and when the receiving device 134 detects a vehicle speed equal to or higher than a predetermined speed, the motor 120 is driven to raise and store the getting on / off step 13. At this time, a buzzer 137 in the cabin 20 may be sounded to notify.

  Further, when the vehicle stops traveling, the getting on / off step 13 is automatically lowered to be in a usable state. This saves time and effort for lowering the passenger step 13.

The second motor 136 is also configured to be rotatable in the main getting on and off step 135 for getting in and out of the cabin 20. When the vehicle body starts traveling, the second motor 136 is driven to rotate the main getting on / off step 135 upward (in the storage state). At this time, a buzzer 137 in the cabin 20 may be sounded to notify.
In addition, when the vehicle stops traveling, the second motor 136 is driven to rotate the main getting-in / out step 135 downward (in use). As a result, it is possible to save time and effort for lowering the main getting on / off step 135.

Reference 2 Vehicle body 4 driver seat 6 front wheel 7 rear wheel 13 step 30 for getting on and off medicine tank 40 control boom 120 motor 133 vehicle speed sensor 134 GPS receiver

Claims (3)

  A control boom (40) and a driver's seat (4) for spraying a chemical solution on a traveling vehicle body (2), a medicine tank (30) is provided behind the driver's seat (4), and left and right front wheels (6, 6) In the drug dispersal truck traveling on the rear wheel (7, 7), the passenger vehicle is provided with the getting on / off step (13) from the traveling vehicle body (2) on the rear side of the rear wheel (7) on either side A motor sprayer characterized in that, when traveling at a speed equal to or higher than a value, a motor (120) is driven to rotate the passenger step (13) upward and downward.   2. A drug distribution vehicle according to claim 1, wherein the vehicle speed of the traveling vehicle body (2) is detected by a vehicle speed sensor (133) or a GPS receiver (134).   The medicine according to claim 1 or 2, characterized in that when the traveling vehicle body (2) stops traveling, the motor (120) is driven to lower and turn the getting on / off step (13). Scatterer.

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