JPH0523258Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a jet head device for a speed sprayer that sprays atomized chemical liquid in orchards, etc. Specifically, it reduces or eliminates blind spots for chemical spraying when turning, etc. The present invention relates to a jet head device for a speed sprayer that can be used in a speed sprayer.

[Conventional technology]

The speed sprayer has a nozzle that opens upwardly and laterally behind the rear wheels, and uses wind from a blower at the rear to carry the atomized chemical liquid to spray the chemical liquid onto fruit trees and the like.

In conventional speed sprayers, the jet head is divided by vertical jet plates at the front and rear, and the spray direction of the chemical spray emitted from the jet head to the left, right, and upper circumferences is limited to the direction of the radiation surface of the jet head, and The position of the jet head is behind the rear wheels in the front-rear direction of the speed sprayer. The turning center of the speed sprayer when turning is on a straight line passing through the center points of the left and right rear wheels, or ahead of the straight line when turning by using one brake.

[The problem that the idea aims to solve]

FIG. 12 shows a blind spot in the spraying of chemical liquid when the conventional speed sprayer 10 rotates.
The speed sprayer 10 has a jet head 24 at the rear,
It has a blower 26 further behind the jet head 24,
Air behind the speed sprayer 10 is sucked in by the blower 26 and sent to the nozzle head 24, and sprays the chemical solution upward and to the right and left sides of the speed sprayer 10. speed sprayer 10
However, when turning to the left as shown by the arrow, the direction in which the chemical solution is ejected from the spray 24 is limited to the direction perpendicular to the center line of the speed sprayer 10, so the direction is 90°.
Until the speed sprayer 10 turns, the spray of the chemical solution does not reach the half A (the hatched part) of the fruit tree 130, which is located approximately at the center of rotation of the speed sprayer 10, and becomes a blind spot for the spray.

The object of the invention of claim 1 is to provide a jet head of a speed sprayer that can reduce or eliminate blind spots in the spraying of chemical liquid that occur when turning, and can do this without requiring any effort from the operator. The purpose is to provide equipment.

The object of the invention of claim 2 is to provide an advantageous embodiment of the invention of claim 1.

The object of the third aspect of the invention is to make it possible to efficiently direct the spray from the nozzle in the direction of the conveying wind.

[Means to solve the problem]

This invention will be explained using reference numerals in the drawings that correspond to the embodiments.

In the spray head device which is the premise of the speed sprayer 10 according to the first aspect, a plurality of nozzles 68 for spraying a chemical solution are arranged, and the spray from the nozzles 68 is carried by the wind from the blower 26 and discharged to the surroundings. There is. Then, the blowhead device has an opening 48 of the blowhead 24.
A wind guiding tilting member 52 is disposed so as to be freely tiltable in the front and back direction, and directs the wind from the blower 26 toward the center of rotation of the speed sprayer 10 when tilting; It has an operation section 54 that tilts the wind tilting member 52.

In the jet head device of the speed sprayer 10 according to the second aspect, the operating section 54 includes a wire 58 whose one end is connected to the tilting member 52 for guiding air, and a guide means 114.
When the speed sprayer 10 moves straight, the speed sprayer 112 is guided by the guide member 112, which is guided by the wire 58, and the distance from the guide member 114 in the guide direction of the guide member 114 is minimized. 10, and a connecting member 116 that transmits the displacement of the swinging member 106 to the guided body 112.

In the jet head device of the speed sprayer 10 according to the third aspect, the nozzle 68 is attached to the air guide tilting member 52 and tilts integrally with the air guide tilting member 52.

[Effect]

In the device according to claim 1, when the speed sprayer 10 moves straight, the operating section 54 directs the air guide tilting member 52 toward the radiation surface of the jet head 24, and the blower 26
The wind from the nozzle 68 is emitted from the jet head 24 in the direction of the radiation surface of the jet head 24 by the wind guide tilting member 52 of the opening 48, and the spray from the nozzle 68 is blown in the direction of the radiation surface of the jet head 24. On the other hand, when the speed sprayer 10 is turning, the operating section 54 tilts the air guide tilting member 52 toward the center of rotation of the speed sprayer 10. As a result, the wind from the blower 26 flows along the slope of the wind guide tilting member 52 near the opening 48 of the jet head 24, and as a result, the wind from the blower head 24
The spray from the nozzle 68 is emitted from the opening 48 at an angle to the direction of the radiation surface of the speed sprayer 10 and directed toward the center of rotation of the speed sprayer 10. It is oblique to the direction of the surface and is directed toward the center of rotation of the speed sprayer 10.

In the invention of claim 2, the speed sprayer 10
As the swing member 106 swings, the swing member 106 swings. When the speed sprayer 10 moves straight, the swinging member 1
06, the distance from the guide means 114 in the guide direction of the guide means 114 is the minimum, and the guided object 1
12 is located at the end of the movement range of the guide means 114 that is far from the swinging member 106. Further, when the speed sprayer 10 rotates, the swinging member 10
6, the distance from the guide means 114 in the guide direction of the guide means 114 increases, and the guided object 112
is guided by the connecting member 116 to move the swinging member 106 in the movement range of the guide means 114.
Move to the end closest to . The displacement of the guided body 112 in the guide means 114 is transmitted to the wind guiding tilting member 52 via the wire 58, and the wind guiding tilting member 5
2 is the direction of the radiation surface of the jet head 24 when the speed sprayer 10 is moving straight, and when the speed sprayer 10 is turning, the direction is the direction of the radiation surface of the jet head 24.
tilt toward the center of rotation.

In the third aspect of the present invention, the nozzle 68 tilts integrally with the tilting of the wind guiding tilting member 52, and sprays in the same direction as the wind whose direction is adjusted by the wind guiding tilting member 52.

〔Example〕

This invention will be described below with reference to the embodiments shown in FIGS. 1 to 11.

FIG. 10 is a side view of the speed sprayer 10. The speed sprayer 10 includes a frame 16 that is supported by front wheels 12 and rear wheels 14 so as to be self-propelled, and on the upper side of the frame 16,
In order from the front of the speed sprayer 10, there is a driver's seat 18, a chemical tank 20 for storing chemical liquid, a bonnet 22 surrounding an engine room that houses an engine 38 (to be described later), etc., a spray head 24 for spraying chemical liquid, and a spray head for spraying air sucked in from the rear. A blower 26 that discharges air to 24 is installed.

FIG. 1 shows the jet head 24 and the blower 26 with the tilting plate 52 facing toward the radiation surface of the jet head 24.
FIG. 2 is a structural diagram showing the tilting plate 52 together with the operating section 54 of the tilting plate 52, and FIG. . In FIGS. 1 and 2, in the blower 26, the wind barrel 28 covers the left, right and upper sides, and the net body 30 covers the wind barrel 28.
Foreign objects such as dead leaves are covering the rear opening of the blower 2.
6 to prevent it from being sucked into the room. The stator blade 32 and the rotor blade 34 are arranged on the rear side and the front side, respectively, inside the wind body 28, and the spinner 36 is connected to the stator blade 32.
It covers the rear side of the central part of. The engine 38 is disposed within the bonnet 22 described above, and is connected to the fan shaft 4.
0 passes through the jet head 24 in the longitudinal direction and transmits the rotational power of the engine 38 to the rotor blades 34. Fountain head 24
are defined at the front and back by a front blower plate 42 and a rear blower plate 44, respectively, and a rear blower plate 44.
is formed as an end surface on the front side of the wind barrel 28. The front jet head plate 42 has an inner vertical part 46 that extends in the direction of the radiation image of the jet head 24, and a front tilting part 50 that is inclined diagonally forward toward the outside in the vicinity of the opening 48 of the jet head 24. . Tilt plate 52
The inner end of the jet head 24 in the radial direction is connected to the edge of the front inclined part 50 on the vertical part 46 side. The operating unit 54 is disposed at the lower front end of the driver's seat 18 and controls the tilting of the tilting plate 52 via a push-pull wire 58.

FIG. 3 is a detailed view of the area including the tilting plate 52. With respect to the radial direction of the jet head 24, the hinge 60
A bolt 62 and a nut 64 are applied to the inner edge of the tilting plate 52 and the outer edge of the vertical portion 46.
Fixed by Tilt plate 5 by hinge 60
2 can swing freely around the pin of the hinge 60.
The nozzle pipes 66 are disposed on the upper side, left and right sides of the fan-shaped nozzle head 24, respectively, and therefore a total of three nozzle pipes 66 are disposed on the front side nozzle plate 42 side,
It is fixed to the surface on the front inclined part 50 side of. The nozzle pipe 66 is fed with a chemical liquid from a spray pump (not shown). The nozzle 68 is arranged on the rear side of the tilting plate 52 and is fixed to the nozzle pipe 66 with a fixing nut 70. A plurality of nozzles 68 are attached to one nozzle pipe 66 at equal intervals in the longitudinal direction of the nozzle pipe 66. The push-pull wire 58 consists of an outer outer 72 and an inner inner 74 covered by the outer 72.
is connected to the front inclined portion 50 of the tilting plate 52 via the pin 80.
It is locked to the wire receiver 82 on the side.

FIG. 4 is a front view of the front blowhead plate 42 viewed from the blowhead 24 side. The escape hole 84 is located at the front inclined portion 50
It is formed to be long in the direction of the respective sides at the left and right side portions and the upper side portion, and serves as a relief portion for the nozzle pipe 66. Bolt escape hole 86
are bored on the outside of the substantially square vertical portion 46, and serve as relief portions for the aforementioned bolts 62 for fixing the hinge 60. Escape recess 78
are formed inside each relief hole 84 and serve as a relief portion for the wire receiver 82.

FIG. 5 is a front view of the front jet head plate 42 viewed from the jet head 24 side with the tilting plate 52 attached. The tilting plate 52 is arranged so that the nozzle head 24 corresponds to the nozzle pipe 66.
The tilting plates 52 are respectively disposed on the left and right sides and the upper side of the jet head 24 , and each tilting plate 52 is pivotally supported by a hinge 60 at the radially inner edge of the jet head 24 .

Returning to FIG. 1, the driver's seat 18 includes a seat 88 on which an operator sits as a driver of the speed sprayer 10, and a steering wheel 90 that is rotated when the speed sprayer 10 turns. The rotational force of the steering wheel 90 is transmitted to the gearbox 94 via the steering shaft within the column 92, and further includes a pitman arm 96 that swings its lower end in the front-rear direction of the speed sprayer 10,
The signal is transmitted to the front wheels 12 as steered wheels via a drag link 98 that is displaced in the front-rear direction. The operating section 54 is disposed above the pitman arm 96, detects the swinging of the pitman arm 96, and operates the tilting plate 52 via the push-pull wire 58 in relation to this.

6 and 7 are views of the operating unit 54 seen from the side of the speed sprayer 10 when the speed sprayer 10 is moving straight and when turning left and right, respectively;
FIG. 8 is a view of the operating section 54 seen from the front of the speed sprayer 10, and FIG. 9 is an exploded view of the operating section 54. The output shaft 100 of the gearbox 94 protrudes to the side of the gearbox 94, is inserted into the insertion hole of the Pitman arm 96, is fitted with a spring seat 102, is tightened with the Pitman arm 96 by a nut 104, and is integrated with the Pitman arm 96. It is supposed to rotate. The pitman arm 96 is integrally formed with the output shaft 1.
It has an upper protrusion 106 that protrudes upward from the speed sprayer 10.
When the robot moves straight, it becomes vertical along with the Pittman arm 96. Bracket 108 has upper protrusion 106
It is fixed to the frame 16 of the speed sprayer 10 such that the vertical part is aligned with the upper protrusion 106 when it is in the vertical position. The end of the outer 72 of the push-pull wire 58 is fixed to the upper end of the bracket 108 by a nut 110, and the end of the inner 74 of the push-pull wire 58 is exposed from the outer 72 and has a loop-shaped fitting 112 at the tip. has been fixed. Guide groove 11
4 is formed in a vertical portion of the bracket 108 to be elongated in the vertical direction. The connecting arm 116 has pin portions 118 and 120 protruding from the upper and lower ends, respectively.
The pin portion 118 is inserted through the guide groove 114 and the loop-shaped fitting 112 so as to be relatively rotatable, and then inserted into the washer 12.
2 is fitted, and a cotter pin 124 for preventing it from coming off is inserted. The pin part 120 is rotatably inserted through the upper end of the upper protrusion 106, and then a washer 122 is fitted thereinto, and a split pin 124 for preventing the pin part 120 from coming off is inserted therein. Thus, the connecting arm 116 is rotatably coupled to the loop fitting 112 and the upper protrusion 106, respectively, at the upper end.

The operation of the embodiment will be explained.

When the speed sprayer 10 is traveling straight, the steering wheel 90 of the driver's seat 18 is at the center position with respect to the rotational direction, and the pitman arm 96 and the connecting arm 116 are at the vertical position, as shown in FIG. As a result, the connecting arm 116
is pushed upward, and the loop-shaped metal fitting 112 is
Located at the highest point within the guide groove 114, the inner 74 is in a position pushed toward the tilting plate 52. As a result, the tilting plate 52, as shown in FIG.
It is oriented in the direction of the radial surface of the jet head 24 and forms the same vertical plane as the vertical part 46 of the front jet head plate 42 .
The wind from the blower 26 is directed to the jet head 2 by the vertical part 46.
The spray from the nozzle 68 is directed toward the radiation surface of the nozzle 24 and then ejected from the opening 48 of the jet head 24 in the direction of the radiation surface of the jet head 24 .

On the other hand, when the speed sprayer 10 turns to the left or right, the driver in the driver's seat 18 rotates the steering wheel 90 to the left or right, and the connecting arm 116 moves with respect to the vertical line, as shown in FIG. As a result, the speed sprayer 10 is in a swinging position where it is tilted backward (turning to the left) and forward (turning to the right). As a result, the connecting arm 116 is taken downward, and the loop-shaped metal fitting 112 is moved into the guide groove 114.
The inner 74 is in a pulled position toward the bracket 108. As a result, the tilting plate 52
is tilted so that its front side touches the front inclined portion 50, as shown in FIG. At that time, the nozzle pipe 66 protruding from the front side of the tilting plate 52,
The wire receiver 82 and the bolt 62 fit into the relief hole 84, relief recess 78, and bolt relief hole 86 of the front inclined portion 50, respectively. In addition, the nozzle 68
is tilted integrally with the tilting plate 52, and the tilting plate 52
The nozzle is directed in the same direction as the tip of the device, and the chemical solution is sprayed. The wind from the blower 26 is directed diagonally forward of the speed sprayer 10 with respect to the direction of the radiation surface of the jet head 24 by a tilting plate 52 near the opening 48 of the jet head 24 and is emitted from the jet head 24 . In this way, the spray from the nozzle 68 is controlled by the direction of the nozzle 68 and the flow direction of the wind at the opening 48, and is directed diagonally forward with respect to the direction of the radial surface of the jet head 24, that is, toward the center of rotation of the speed sprayer 10. blown away.

FIG. 11 shows the direction in which the spray from the nozzle head 24 is distributed during the rotation of the speed sprayer 10. When turning, the tilting plate 52 tilts toward the center of rotation of the speed sprayer 10, and the chemical liquid from the nozzle head 24 is discharged toward the center of rotation of the speed sprayer 10. As a result, the center of rotation of the speed sprayer 10 moves toward the center of rotation of the speed sprayer 10. Even when the speed sprayer 10 is deviated from the jet head 24 in the longitudinal direction of the speed sprayer 10, the chemical solution can be appropriately sprayed on the fruit tree 130 located at the center of rotation.
It is possible to reduce or suppress blind spots in the spraying of chemical solutions. Note that the tilting angle of the tilting plate 52 toward the front inclined portion 50 with respect to a predetermined turning angle of the speed sprayer 10 can be adjusted by arbitrarily changing the height of the bracket 108 and the length of the upper protrusion 106. The height of the bracket 108 and the length of the upper protrusion 106 are adjusted depending on the model of the speed sprayer 10 so that the tilting plate 52 has an optimum tilting angle.

In the illustrated embodiment, the tilting plate 52 is the front jet plate 4.
Although it is attached to the rear blower head plate 44, it is also possible to attach it to the rear blower head plate 44. Further, the nozzle 68 is attached to the tilting plate 52 together with the nozzle pipe 66,
Although it tilts integrally with the tilting plate 52, the front jet head plate 4
2, and only the direction of the wind may be changed by the tilting plate 52. In that case, the structure is simplified.

In the illustrated embodiment, the three tilting plates 52 are operated by a common operating section 54, and not only the tilting plate 52 on the inner side in the turning direction but also the tilting plate 52 on the outer side in the turning direction is operated.
Although the speed sprayer 10 tilts diagonally forward, an operation part 54 may be provided for each tilting plate 52, and the tilting plate 52 on the outside in the turning direction may not be tilted when turning, but may be held at the position when moving straight.

[Effect of idea]

In the device of claim 1, the wind blown out from the jet head is directed toward the center of rotation of the speed sprayer by tilting the air guide tilting member at the opening of the jet head, and the spray of chemical liquid from the nozzle is directed toward the center of rotation of the speed sprayer. Since it can be directed diagonally toward the center of rotation with respect to the direction of the surface, blind spots in spraying that occur when turning can be reduced or eliminated even in speed sprayers where the jet head is deviated from the center of rotation in the longitudinal direction of the speed sprayer. be able to. In addition, the tilting member for guiding air is automatically tilted by the operation unit detecting the rotation of the speed sprayer and operating the tilting member for guiding air, so the operator does not have to perform complicated operations. , labor can be significantly reduced.

In the invention of claim 2, the swinging member swings in relation to the turning of the speed sprayer so that the distance from the guide means in the guiding direction of the guide means is minimized when the speed sprayer moves straight. The motion is transmitted to the guided body in the guide means via the connecting member, and further transmitted from the guided body to the air guiding tilting member via the wire. Such a structure does not use electric elements that require a power source or expensive electrically controlled actuators, so it is advantageous for simplicity and cost reduction.

In the invention of claim 3, the nozzle is tilted integrally with the tilting member for guiding wind, and the spray is ejected from the nozzle in the same direction as the direction in which the wind is controlled by the tilting member for guiding wind, so that the spray is ejected from the nozzle in the same direction as the direction in which the wind is controlled by the tilting member for wind guiding. Conveyance of the spray diagonally forward is improved. Note that the nozzle is not installed in the tilting member for guiding the wind, but in a stationary location other than the tilting member for guiding the wind (in the illustrated embodiment, for example, the rear jet head plate 4
4) simplifies the structure.

[Brief explanation of the drawing]

Figures 1 to 11 relate to embodiments of this invention.
Figure 1 is a structural diagram showing the jet head and blower together with the operating section of the tilting plate, with the tilting plate facing in the direction of the radiation surface of the jet head, and Figure 2 shows the tilting plate facing in the direction of the radiation surface of the jet head. A structural diagram of the jet head and blower shown facing diagonally forward, Figure 3 is a detailed view of the area including the tilting plate, Figure 4 is a front view of the front jet head plate seen from the head side, and Figure 5 is the tilting head. A front view of the front jet head plate viewed from the jet head side with the plate attached, and Figures 6 and 7 are views of the operating section from the side of the speed sprayer when the speed sprayer is moving straight and when it is turning left and right, respectively. Figure 8 is a view of the operating unit from the front of the speed sprayer, Figure 9 is an exploded view of the operating unit, and Figure 10 is a side view of the speed sprayer.
Figure 11 is a diagram showing the direction of spray spray from the nozzle head during the rotation of the speed sprayer.
FIG. 2 is a diagram showing a blind spot in the spraying of a chemical solution when a conventional speed sprayer rotates. 10...Speed sprayer, 24...Full head,
26...Blower, 48...Opening, 52...Tilt plate (tilting member for wind guide), 54...Operation unit, 58...
... Push-pull wire (wire), 68 ... Nozzle, 106 ... Upper protrusion (swinging member), 112
. . . Loop-shaped metal fitting (guided body), 114 . . . Guide groove (guiding means), 116 .

Claims (1)

[Claims for Utility Model Registration] (1) A speed sprayer 10 in which a plurality of nozzles 68 for spraying a chemical solution are arranged, and the spray from the nozzles 68 is carried by the wind from the blower 26 and discharged to the surroundings. In the blowhead device, the blowhead 24
A wind guiding tilting member 52 is disposed in the opening 48 of the air blower so as to be tiltable in the front and back direction, and directs the wind from the blower 26 toward the center of rotation of the speed sprayer 10 when the speed sprayer 10 is turned. A jet head device for a speed sprayer, comprising an operating section 54 for detecting the wind direction and tilting the air guide tilting member 52 when turning. (2) The operation section 54 is connected to the air guiding tilting member 52.
a wire 58 whose one end is connected to a wire 58; a guided body 112 which is guided by a guide means 114 and is locked to the other end of the wire 58; said guiding means 11 in the guiding direction;
a swinging member 106 that swings in relation to the rotation of the speed sprayer 10 such that the distance from the swinging member 106 is minimized, and a connecting member 116 that transmits the displacement of the swinging member 106 to the guided body 112. The jet head device for a speed sprayer according to claim 1, characterized in that the jet head device comprises: (3) The nozzle 68 is connected to the air guiding tilting member 52.
Claim 1 or 2, characterized in that the wind guiding tilting member 52 is attached to the tilting member 52 and tilts integrally with the wind guide tilting member 52.
The head device of the speed sprayer described.