JPH0427565Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a spraying device that is mounted on a movable sprayer and sprays a chemical solution onto fruit trees and the like.

[Prior Art] FIGS. 6 and 7 show a sprayer 12 equipped with a conventional spray device 10, and the spray device 10 is mounted at the rear of the sprayer 12, which is movable. The spray device 10 includes a chemical solution tank 1 that stores a chemical solution therein.
4 and this chemical solution tank 14, a blower 18 is disposed behind the chemical solution tank 14 with a blower head 16 as a gap between the blower 18 and the blower 18, which blows air to the blower head 16, and a receiver installed above the blower head 16. A stand 20 and a support 22 fixed to the upper part of the stand 20 in an upright state.
and a nozzle 24 attached to the upper part of the support column 22. In the work of spraying a chemical onto fruit trees, a worker 26 sits in the driver's seat of the sprayer 12 and runs the sprayer 12 between the fruit trees while emitting a spray 28 of the chemical from the nozzle 24 . H
1 and H2 indicate the ground clearance up to the highest nozzle 24 and the ground clearance up to the top of the spray device 10 excluding the strut 22, respectively.

The support column 22 in the conventional spray device 10 is rigidly coupled to the pedestal 20 and is not provided with a mechanism such as expansion and contraction.

[Problem to be solved by the invention] Therefore, as shown in FIG.
If it gets caught, the support 22, nozzle 24, etc. may be damaged, or the fruit tree 30 may be damaged.

In addition, when the sprayer 12 is carried on a loading platform such as a truck 34, the ground clearance of the loading platform is added and the ground clearance H3 to the upper end of the support column 22 becomes high, which is inconvenient for transportation, and the sprayer 1
2 is also disadvantageous since H1 remains unchanged and high, requiring a large storage space.

Furthermore, it is difficult to adjust the height of the spray 28 according to the height and growth of the fruit trees 30 and the like.

The purpose of this invention is to solve these problems of the prior art and provide a sprayer spraying device that can avoid damage caused by collisions with branches of fruit trees, etc., and is convenient for transportation, storage, and spraying.

[Means for Solving the Problems] According to this invention, a spray device mounted on a movable sprayer includes a column with a nozzle attached to the top and whose length can be adjusted, and a column that is attached to the body so that it can be raised and lowered. a removable pin coupled thereto and a spring imparting a rotational moment to the column about the pin in a direction that returns the column to an upright position.

[Function] During spraying work, when the top of the prop collides with an obstacle such as a branch, the prop rotates around the pin against the spring, causing the top of the prop to fall backwards and push the obstacle away. pass. After passing, the spring returns the column to its original upright position.

When storing or transporting the sprayer, pull out the pin to disconnect the support from the machine body, and leave the support in the collapsed position.

The height of the nozzle is adjusted by expanding and contracting the strut.

[Example] Hereinafter, this invention will be described with reference to an example of the drawings.

1 and 2 are a side view and a rear view of the area including the strut 38 of the spray device 10, and the strut 38
includes a lower part 40 and an upper part 42 that is inserted into and fitted into the lower part 40 from the upper part of the lower part 40. The washer 44 is inserted from the top of the lower part 40 between the fitting portion of the lower part 40 and the upper part 42, and the bolt 46 is threaded into the side of the lower part 40 and is inserted at the tip. The sides of the upper portion 42 are pressed through the washers 44 to lock the upper portion 42 to the lower portion 40 . A pair of nozzle frames 4
8 and 48 are fixedly installed on both sides of the upper end of the support column 38, and a pair of nozzle receivers 50 and 50 are attached to both nozzle frames 4.
A plurality of nozzles 24 are disposed between the nozzle frames 48 and 48 and are rotatably supported by the nozzle frames 48 and 48 in the direction of the arrow 52, and each nozzle 24 generates a spray of chemical liquid.
is attached to. One nozzle frame 48, 4
A rubber receiver 54 is fixedly installed on the outer surface of 8. A pair of holder frames 56, 56 are placed on the holder 20 so as to face each other.
A cylindrical collar 58 is erected on the upper surface and is fixed to the side of the lower end of the lower portion 40, and a pin 60 is inserted into and removably inserted into the receiving frames 56, 56 and the collar 58. This allows the lower portion 40 of the strut 38 to pivot around the pin 60, allowing the strut 38 as a whole to be raised and lowered. A spring receiving pin 62 is fixed to the lower end of the lower part 40 so as to pass through the lower part 40 in a direction perpendicular to the longitudinal direction of the lower part 40.
6 is formed with a circumferential guide groove 64 centered on the insertion portion of the pin 60 in the receiving frame 56, and each end of the spring receiving pin 62 is inserted into the guide groove 64.
The locking bolt 66 is inserted through a side plate 68 installed under the receiving frames 56, 56, and is screwed into a nut 70 on the outside of the side plate 68. The tension coil spring 72 is hooked on the spring receiving pin 62 and the locking bolt 66 at both ends, respectively, and
A rotational moment is applied to the strut 38 about 0 in a direction that returns the strut 38 to an upright position.

The operation of the embodiment will be explained with reference to FIGS. 3 to 5.

Figure 3 shows the sprayer 12 running and the support 38
Fig. 8 shows a case where the upper part of the support column 38 collides with the upper part of the column 38 when the chemical liquid is being sprayed from the nozzle 24 at the upper part of the column. Note that the pedestal 20 is connected to the jet head 16.
The pedestal 20 is fixed to the chemical liquid tank 14 and a jet head plate (not shown) via bolts 76. The support post 38 is rotatably supported by the support frames 56 and 56 via pins 60 in the direction of the arrow 78, so that the support post 38 may be caused to collide with an obstacle such as a branch 32 of a fruit tree 30, causing the support post 38 to collapse in its upper part. rotates around pin 60 against tension coil spring 72 so as to tilt rearward. In this case, the guide groove 64 guides a spring receiving pin 62 which is fixedly attached to the lower part of the lower part 40 of the column 38. In this way, even if there is a collision, the impact force of the collision is alleviated, and damage or breakage to the obstacle and the spray device 10 is prevented. When the support post 38 passes the obstacle, the support post 38 is rotated by the biasing force of the tension coil spring 72 until the spring receiving pin 62 comes into contact with the closed end of the guide groove 64, and returns to its original upright position.

Figure 4 shows when storing the sprayer 12 and
As shown in the figure, it shows the state when being carried on the loading platform of a truck 34. Note that 80 is a fitting hole for inserting the pin 60 into the receiving frame 56. Receiving slot 5
The pin 60 is removed from the column 6 and the collar 58, and the pin 60 is removed from the column 3.
Push 8 forward. Since the tension coil spring 72 pulls the spring receiving pin 62 backward, the spring receiving pin 62 remains within the guide groove 64 even when the support column 38 is knocked down.
This will come in handy the next time the post 38 is erected. The rubber support 54 is attached to the support 3 when the support 38 is collapsed.
8 and the chemical liquid tank 14, and leave an appropriate gap between the upper part of the support column 38 and the chemical liquid tank 14 to protect the nozzle 24 and the like. As a result, the height of the spray device 10 is reduced, making it convenient to store and transport the spray device 10.

FIG. 5 shows the adjustment of the length of the strut 38, where a shows the length of the strut 38 when it is shortened the most, and b shows when it is extended from the length of a. It is necessary to adjust the height of the nozzle 24 depending on the height and growth of the fruit tree 30 etc. to which the chemical solution is to be sprayed. , then lower the upper portion 4 in the direction of arrow 82 until the strut 38 is at the desired length.
2 is pulled out from the lower part 40, the bolt 46 is tightened again, and the upper part 42 is locked by the tip of the bolt 46 via the washer 44. Due to the washer 44, force is concentrated at the tip of the bolt, and the pressure contact area is increased without causing pressure loss on the upper portion, thereby ensuring secure locking.

[Effects of the invention] As described above, according to this invention, the support is rotatably supported around the pin, so when the support collides with an obstacle during spraying work, the support will resist the spring. The impact of the collision is alleviated by rotating, and it is possible to avoid damage or breakage of the pillars, fruit trees, etc.

In addition, when storing or transporting, the pin can be removed to disconnect the support from the aircraft body, and the support can be placed with the support collapsed, reducing the overall height of the spray device and making it easier to store and transport. It becomes convenient.

Since the length of the support can be adjusted, the height of the nozzle can be adjusted according to the height and growth of crops such as fruit trees.

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment of this invention. Figures 1 and 2 are side and rear views of the area including the support of the spray device, and Figure 3 is a view of the area when the support is tilted. Figure 4 shows the state when the column is folded down; Figures 5a and b show the column when it is shortened to its maximum length, and Figure 6 shows the column when it is extended, respectively. 7 is a side view and rear view showing a sprayer 12 equipped with a conventional spray device, FIG. 8 is a diagram showing a state when the spray device collides with an obstacle during the spraying operation of the sprayer shown in FIG. 6, and FIG. FIG. 9 is a diagram showing the state in which the sprayer of FIG. 6 is being transported. 10... Spraying device, 12... Sprayer, 24
... Nozzle, 38 ... Support, 56 ... Receiving frame (body), 60 ... Pin, 72 ... Tension coil spring (spring).

Claims (1)

[Claims for Utility Model Registration] (1) In the spray device 10 mounted on the movable sprayer 12, there is provided a column 38 with a nozzle 24 attached to the top and whose length is adjustable, and the column 38 can be raised and lowered. Features include a removable pin 60 coupled to the fuselage 56 and a spring 72 imparting a rotational moment to the strut 38 about the pin 60 in a direction to return the strut 38 to an upright position. Sprayer spray equipment. (2) The support column 38 is connected to the fuselage 56 at the lower part.
A bolt 46 is screwed into one of the lower part 40 which is rotatably coupled to the lower part 40 via the pin 60, and the upper part 42 which is fitted into the lower part 40 and has the nozzle 24 attached thereto. and the other is locked to the tip of the bolt 46 via a washer 44 to prevent relative movement of both 40 and 42 in the axial direction. The sprayer's atomizing device is listed.