JPH0541805Y2 - - Google Patents

Description

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

[Conventional technology]

The speed sprayer has a nozzle behind the rear wheels that opens above and to the sides of the speed sprayer, and the atomized chemical liquid is carried by the wind sent from the rear blower to spray the chemical liquid onto trees, etc. There is.

In a conventional speed sprayer, the jet head is partitioned 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. 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]

Therefore, in places where the direction of the speed sprayer cannot be changed so that the object to be sprayed is in the direction of the radiation surface of the jet head, it is difficult to spray the chemical onto the object to be sprayed. Alternatively, it is necessary to change the direction of the speed sprayer so that the object to be sprayed is in the direction of the radiation surface of the jet head, which makes the work complicated.

Furthermore, since the jet head is mounted behind the rear wheels, a blind spot is created in the turning direction where the chemical solution does not reach when the speed sprayer turns. That is, FIG. 7 shows a blind spot in the spraying of the 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, as shown by arrow C in Figure 7, P1, P2, P3, P4,
When turning with P5, the direction in which the chemical solution is ejected from the jet head 24 is limited to the direction perpendicular to the center line of the speed sprayer 10. The chemical spray does not reach the area (indicated by hatching),
This becomes a blind spot for spraying.

The purpose of this device is to make it possible to spray the chemical solution onto the target object without moving the speed sprayer so that the target object is in the direction of the radiation surface of the jet head. The jet head structure of a speed sprayer reduces or eliminates blind spots on the top, improves work efficiency, and reduces or eliminates blind spots in the spraying of chemical solutions that occur when turning. By enabling independent control, it is possible to freely select various dispersion patterns depending on the situation.

[Means to solve the problem]

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

That is, in this invention, a plurality of nozzles 68 for spraying the chemical solution are arranged, and the spray from the nozzles 68 is carried by the wind from the blower 26 to the nozzle head 24.
is emitted to the surroundings through the opening 48 of. A wind-guiding tilting member 52 is disposed in the opening 48 of the jet head 24 and tilts in the front-back direction to direct the wind from the blower 26 in the front-back direction diagonally with respect to the direction of the radiation surface of the spray 24. In the jet head structure of the speed sprayer 10, the tilting member 52 for guiding air is connected to the jet head 2.
A plurality of air guide tilting members 52 are provided in the circumferential direction of the wind guide 4, and the tilting of each wind guide tilting member 52 can be independently operated.

[Effect]

During normal chemical spraying, the air guiding tilting member 52
is in the direction of the radiation surface of the jet head 24, the wind from the blower 26 is emitted from the jet head 24 in the direction of the radiation surface of the jet head 24, 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 object to be sprayed is in an oblique direction of the speed sprayer 10, or when it is difficult to spray the chemical onto the object by simply moving the speed sprayer 10 back and forth, the tilting for wind guidance is used. The member 52 is tilted so as to be inclined with respect to the direction of the radiation surface of the jet head 24. As a result, the blower 26
As a result, the wind flows along the tilting movement of the wind guidance tilting member 52 near the opening 48 of the jet head 24.
The spray from the nozzle 68 is emitted from the opening 48 in an oblique front-rear direction with respect to the direction of the radial surface of the jet head 24, and the spray from the nozzle 68 is also carried by the wind and heads in the oblique front-rear direction with respect to the direction of the radial surface of the jet head 24.

When the speed sprayer 10 rotates,
Since the jet head 24 is located on the rear side in the direction of movement of the speed sprayer 10 with respect to the center of rotation of the speed sprayer 10, the wind guide tilting member 52 is tilted so that the wind from the jet head 24 heads diagonally forward. In this invention, the air guide tilting member 5
2 is independently controlled in each part of the jet head 24 in the circumferential direction. Therefore, the tilting member 52 for guiding wind at each location is independently controlled in its angle in the oblique front-rear direction, and the spray is blown in the direction in which the tilting member 52 for guiding wind at each location is tilted.

〔Example〕

This invention will be described below with reference to the embodiments shown in FIGS. 1 to 6.

FIG. 6 is a side view of the speed sprayer 10.

The speed sprayer 10 has a front wheel 12 and a rear wheel 1.
A frame 16 is provided with a frame 16 that is supported by the speed sprayer 10 and is capable of self-propelled.
8. A chemical tank 20 for storing a chemical solution, a bonnet 22 surrounding an engine room that houses an engine 38 (to be described later), etc., a spray head 24 for spraying the chemical solution, and a blower 26 for discharging air sucked in from the rear to the spray head 24 are installed. Ru.

1 and 2 are structural diagrams of the jet head 24 and the blower 26, respectively, with the tilting plate 52 tilted diagonally forward in the direction of the radiation surface of the jet head 24 and in the direction of the radiation surface. In the blower 26, the wind barrel 28 covers the left, right and upper sides, and the net body 30 covers the rear opening of the wind barrel 28 to prevent foreign matter such as dead leaves from being sucked into the blower 26. The stator blades 32 and the rotor blades 34 are arranged on the rear side and the front side, respectively, inside the wind body 28, and the spinner 36 covers the rear side of the central part of the stator blades 32. The engine 38 is disposed within the bonnet 22 described above, and the fan shaft 40 passes through the jet head 24 in the longitudinal direction to transmit the rotational power of the engine 38 to the rotor blades 34. The jet head 24 is defined at the front and rear by a front jet head plate 42 and a rear jet head plate 44, respectively, and the rear jet head 44 is formed as an end surface on the front side of the wind body 28. The front blowhead plate 42 is the blower head 2
an inner vertical portion 46 extending in the direction of the radiation surface of 4;
In the vicinity of the opening 48 of the jet head 24, a front inclined portion 50 is provided which is inclined diagonally forward toward the outside. The tilting plate 52 has its inner end in the radial direction of the jet head 24 connected to the edge of the front inclined part 50 on the vertical part 46 side. The switching lever 54 is disposed on the driver's seat 18 and is slidable around a fulcrum 56. The push-pull wire 58 is engaged at both ends with the lower end of the switching lever 54 and the middle part of the tilting plate 52, respectively, and transmits the swinging force of the switching lever 54 to the tilting plate 52.

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,
is fixed to the surface on the front oblique portion 50 side. 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 is connected to the outer case 72 on the outside.
and an inner wire 74 covered by the outer case 72.
is fixed to the relief recess 78 of the front inclined part 50 by a nut 76, and the inner wire 74 is locked to a wire receiver 82 on the front inclined part 50 side of the tilting plate 52 via a pin 80.

FIG. 4 is a front view of the front blowhead plate 42 viewed from the blowhead 24 side. The escape hole 84 is located on the front inclined surface 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 . The tilting of each tilting plate 52 is controlled independently, and therefore, the aforementioned switching lever 54 and push-pull wire 58 are provided corresponding to each tilting plate 52.

During normal chemical spraying, the tilting plate 52
4, and the front blowhead plate 42
form the same vertical plane as the vertical part 46 of
figure). After the wind from the blower 26 is directed toward the radiation surface of the jet head 24 by the vertical part 46, it is directed toward the radiation surface of the jet head 24.
The spray from the nozzle 68 is emitted from the opening 48 of the nozzle 24 in the direction of the radiation surface of the nozzle 24 .

On the other hand, when the object to be sprayed is diagonally in front of the speed sprayer 10 with respect to the jet head 24,
Or, due to topography, etc., the object to be sprayed is a blowout head 24.
Speed sprayer 1 so that it is within the radiation plane of
If it is difficult to move the speed sprayer 10, or if the speed sprayer 10 turns to the left or right, the driver of the speed sprayer 10 tilts the upper end of the switching lever 54 of the driver's seat 18 backward. As a result, the inner wire 74 of the push-pull wire 58 is pulled forward, and the tilting plate 52 is tilted so that its front side hits the front inclined portion 50. At this time, the nozzle pipe 66, wire receiver 82, and bolt 62 protruding from the front side of the tilting plate 52 are connected to the relief holes 8 of the front inclined portion 50, respectively.
4. Fit into the relief recess 78 and bolt relief hole 86. Further, the nozzle 68 is tilted integrally with the tilting plate 52 so that the nozzle is directed in the same direction as the tip side of the tilting plate 52, and sprays the chemical solution. 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 . Thus, the spray from the nozzle 68 is controlled by the orientation of the nozzle 68 and the direction of wind flow at the opening 48, and
It is thrown diagonally forward in the direction of the radiation surface of 4. In this way, the chemical liquid can be sprayed onto the object to be sprayed which is located diagonally forward with respect to the direction of the radiation surface of the nozzle head 24 without moving the speed sprayer 10 in particular. It is possible to reduce or suppress a blind spot in the spraying of the chemical liquid when the center of rotation deviates from the direction of the radiation surface of the nozzle head 24. The tilting angle of the tilting plate 52 toward the front inclined portion 50 can be adjusted by arbitrarily changing the swinging angle of the switching lever 54, and the tilting angle of the tilting plate 52 can be changed to the optimum tilting angle. The amount of swing of the lever 54 is controlled.

The tilting plates 52 are tilted independently by operating the corresponding switching lever 54 for each tilting plate 52.
For example, when turning, only the tilting plate 52 on the inner side in the turning direction has its tip side directed diagonally forward, and the other tilting plates 52 do not tilt in particular, but are tilted toward the jet head 2.
is held in the direction of the radiation plane. Further, only the tilting plate 52 on the side where the object to be sprayed with the chemical solution is located is tilted with respect to the direction of the radiation surface of the jet head 24.

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. In addition, although FIG. 2 shows the case where the tilting plate 52 tilts forward, the tilting plate 52
It is also possible to move the spray head 2 rearward and spray the chemical solution diagonally rearward with respect to the direction of the radiation surface of the nozzle head 24. Further, the nozzle 68 is attached to the tilting plate 52 together with the nozzle pipe 66, and the nozzle 68 is attached to the tilting plate 52 together with the nozzle pipe 66.
However, it may be attached to the front jet head plate 42 and only the direction of the wind can be changed by the tilting plate 52. In that case, the structure is simplified.

[Effect of idea]

By tilting the wind guiding tilting member at the opening of the jet head, the wind blown out from the jet head can be blown in an oblique front-rear direction, in addition to the direction of the radiation surface of the jet head. Therefore, even in a situation where the speed sprayer cannot be moved so that the object to be sprayed is within the radiation plane of the jet head due to other reasons, it is possible to spray the chemical onto the object to be sprayed.

In addition, when the object to be sprayed is not in the direction of the radiation surface of the jet head, the chemical solution can be sprayed on the object without changing the direction of the speed sprayer, improving the efficiency of chemical spraying work. can be done.

Furthermore, even if the nozzle head is deviated from the center of rotation in the front-rear direction of the speed sprayer, it is possible to reduce or eliminate the blind spot in spraying the chemical liquid from the nozzle that occurs when the spray head rotates in the direction of the radial surface of the nozzle. can.

In particular, with this device, the tilting member for guiding the wind can be controlled independently at each part in the circumferential direction of the jet head, so it is possible to individually select the emission of spray in a diagonal direction with respect to the radiation surface of the jet head, depending on the situation. An appropriate dispersion pattern can be selected accordingly.

[Brief explanation of the drawing]

Figures 1 to 6 relate to an embodiment of this invention, and Figures 1 and 2 show the tilting plate facing in the direction of the radial surface of the jet head and diagonally forward with respect to the direction of the radial surface, respectively. Structural diagram of jet head and blower, Part 3
The figure is a detailed view of the area including the tilting plate, Figure 4 is a front view of the front blower head plate seen from the head side, and Figure 5 is a front view of the front blower head plate seen from the head side with the tilting plate attached. Figure 6 is a side view of the speed sprayer, Figure 7
The figure shows a blind spot in the spraying of a chemical solution when a conventional speed sprayer rotates. 10...Speed sprayer, 24...Full head,
26... Air blower, 48... Opening, 52... Tilting plate (tilting member for wind guiding) 68... Nozzle.

Claims (1)

[Scope of utility model registration request] A plurality of nozzles 68 for spraying a chemical solution are disposed, and the spray head 24 has an opening 48 that tilts in the front-rear direction and allows the spray from the nozzles 68 to be carried by the wind from the blower 26 and released into the surroundings. The blower 2
In the jet head structure of a speed sprayer in which a tilting member 52 for guiding wind is disposed to direct the wind from the jet head 24 in a front-back direction diagonally with respect to the direction of the radiation surface of the jet head 24, the tilting member 52 for guiding wind is arranged such that the tilting member 52 for guiding wind A plurality of air guide tilting members 52 are provided in the circumferential direction of 24.
The head structure of the speed player is characterized in that the tilting of the head can be operated independently.