JP2541690Y2 - Spraying stop device for spraying work vehicle - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spraying stopping device for a spraying vehicle for spraying fertilizers such as powders and granules or chemicals on crops in paddy fields and fields.

[0002]

2. Description of the Related Art For example, Japanese Patent Application Laid-Open No. 2-203707 proposes a device in which a powder / granular material spraying device is attached to the rear of a traveling vehicle body to carry out crop growing management work.

[0003]

The above-mentioned prior art is disclosed in Japanese Patent Application Laid-Open Publication No. H11-27139. In order to stop the transfer of the transfer pipe 9 of the boom 10 that protrudes to the side of the traveling vehicle body at the side of a ridge, the vehicle is moved sideways. It is not interlocked with the operation of changing the posture between the overhang posture and the storage posture inside the machine, and the transfer pipe 9 of the boom 10 and the transfer pipe at the center are separate pipes, and the configuration is complicated. Was.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a side boom extending outward from a center boom via a pivot portion and retracted into the body. The central boom and the side boom are each provided with a scatter pipe at a fixed gap on both sides of the pivot support portion, and the opposite ends of the scatter pipe are flexible. A connecting member connected by a hose, and a receiving member for receiving and supporting the flexible hose in the retracted position is provided on the central boom, while a pressing member is provided on the side boom to contact the receiving member in the retracted position, The flexible hose is positioned between the receiving member and the pressing member.

[0005]

With the side boom pivotally provided outside the central boom, the posture is changed from the laterally extending posture to the retracted posture toward the inside of the aircraft, and the side boom is received by the receiving member of the central boom. And presses flexible hoses connecting the distribution pipes disposed on the central boom and the side boom between the receiving member and the pressing member, respectively, and distributes the flexible hose to the side boom. Spraying of powder and particulate matter from the installed spraying pipe can be stopped automatically.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a construction of a spraying vehicle according to the present invention. Reference numeral 1 denotes a four-wheel drive type traveling body having a front steering wheel 2 and a rear driving wheel 3 and an engine 4 mounted on a front part thereof, and a working machine base 6 mounted on a rear part thereof via a lifting link mechanism 5. On the upper surface of the working machine base 6, a power spraying machine 8 equipped with a driving engine 7 for spraying powders and granules is mounted and supported. A center beam 9 is supported horizontally behind the work machine base 6 in the left and right directions, and left and right sides of the center boom 9 are provided on both outer sides via pivot portions 10 and 10 including pivot pins and the like. Booms 11 and 11 are provided in series. An extendable electric cylinder 14 is pivotally mounted between support brackets 15 and 15 between a bracket 12 welded to the distal end side of the center boom 9 and a stay 13 welded to a proximal end side of the side boom 11, The left and right side booms 11, 11 are independently extended horizontally to the aircraft body and retracted into the aircraft body via the pivots 10, respectively by the expansion and contraction action of the electric cylinder 14. The posture can be freely changed while maintaining the posture. A hanging rod 16 hanging down to the central beam 9 and the side beams 11;
.. Are welded at appropriate intervals, and mounting bands 17, 1 provided on each of the hanging rods 16, 16,.
7, a central scatter pipe 18A and a scatter pipe 18B made of a hard member made of plastic or the like are spaced apart from each other by a fixed gap S on both sides of the pivot portion 10.
In addition, they are integrally provided along the side beams 11. The opposite ends of the spray pipes 18A, 18B are connected by a flexible hose 19 made of a flexible material such as vinyl, rubber, or cloth, and the flexible hose 19 is fitted to the spray pipes 18A, 18B. Hose band 2 at the joint
Fastened by 0,20.

The center boom 9 is welded to a receiving member 21 formed of an L-shaped round bar member for receiving and supporting the flexible hose 19 in the retracted position. A soft vinyl pipe 22 is externally fitted to a portion for receiving the flexible hose 19. The side boom 11 is provided with a flat pressing member 23 which comes into contact with the receiving member 21 in the retracted posture.
An elastic member 24 such as sponge rubber is stretched on a contact surface of the receiving member 21 with the receiving member 21. Thus, the flexible hose 1
9 is disposed through the opposing gap between the receiving member 21 and the pressing member 23, and the flexible hose 19 is connected to the side boom 1.
In accordance with the folding operation to the first storage position, the flexible hose 19 is elastically pressed and held between the pressing member 23 and the receiving member 21 so that the inside of the flexible hose 19 is closed. Further, a tip beam 25 is pivotally mounted on the tip of the side boom 11 so as to be vertically foldable, and a tip scatter pipe 18C is integrally provided with the tip beam 25,
It is connected via a bellows hose 26 to a side scatter pipe 18B provided on the side boom 11. 27, 27,
27, ... are the spraying pipes 18A, 18B, 18C.
It is a jet head that is provided integrally with A discharge hose 28 of the power sprayer 8 is connected to a central portion of the central spray pipe 18A provided on the center boom 9 so that powder, granules, etc. discharged from the power sprayer 8 together with the air blow are provided. Of the spray pipes 18A, 18B and 18C through the discharge hose 28, the central spray pipe 18A, the flexible hose 19, the side spray pipe 18B and the bellows hose 26 and the tip spray pipe 18C. Spouts 27, 27, 27,
.. Are sprayed toward the nurturing paddy field where the crops are growing.

Next, a description will be given of the operation of the spraying work vehicle and the operation of the spraying stop device. As described above, the traveling machine 1 is equipped with the power spraying machine 8 capable of spraying fertilizers and chemicals such as powders and granules. I have. The target crop is a row crop such as paddy rice, vegetables, root vegetables, legumes, and the like. In this embodiment, control of paddy rice in the middle stage of growing will be described. The mid-growing rice height that has been planted in the paddy field has grown to about 50 to 80 cm from the surface of the ground, and the front wheels 2,
The vehicle runs on the rear wheel 3 and drives the engine 7 of the rear power spreader 8 to drive the spraying heads 27 of the spray pipes 18A, 18B, 18C,
Chemicals are sprayed from 27, 27,.

According to the spraying vehicle of the present invention, in the state of the overhanging position to the side of the fuselage, the central spraying pipe 18 has six lines, the outer spraying pipe 18 has six lines each, and the tip of the spreading pipe 18. Thus, a total of 24 strips can be sprayed in one step for 3 strips. However, when it is necessary to adjust the number of rows by adjusting the spray width near the ridge at the end of the work and adjust the number of rows, or to avoid contact with the ridge etc. when traveling near the ridge When it is necessary to fold the boom 11 to the retracted position, the side boom 11 in the extended position is folded to the retracted position by the electric cylinder 14 which is remotely controlled from the traveling body 1. Then, in conjunction with this folding operation, a flexible hose 19 connecting the central spray pipe 18A and the side spray pipe 18B.
Is elastically pressed and held between the pressing member 23 and the receiving member 21 to block the inside of the flexible hose 19 and prevent the transfer of powder and particulate matter to the side spray pipe 18B. Spraying can be stopped automatically. Also, when the side boom 11 is extended from the retracted position to the extended position and the spraying operation from the side spraying pipe 18B and the spraying pipe 18C at the tip is restarted, the side portion in the retracted position by the electric cylinder 14 is also used. When the boom 11 is extended to the overhung position, the pressing member 23 and the receiving member 21 against the flexible hose 19 and the pressing and holding action are released, and the air is blown from the power spreader 8 to expand into a cylindrical shape. Allows the transfer of powder and granules.
Thereby, the spraying operation from the side spray pipe 18B and the tip spray pipe 18C can be smoothly restarted. Therefore, the spraying stop operation and the spraying restart operation from the side spray pipe 18B and the tip spray pipe 18C can be reliably performed with a simple structure.

[0010]

As described above, according to the present invention, the side boom pivotally provided outside the center boom is changed from the sideward protruding posture to the stowage rearward posture. A flexible member for contacting a pressing member of the side boom with a receiving member of the central boom, and connecting a distribution pipe disposed on each of the central boom and the side boom between the receiving member and the pressing member. Automatically presses the conductive hose to automatically stop the distribution of powder and particulates from the distribution pipe disposed on the side boom. Also, when the spraying operation is resumed, simply by restoring the side boom from the retracted position to the extended position, the pressing of the flexible hose is automatically released and the spraying operation can be automatically restarted. Therefore, the spraying stop operation and the spraying restart operation from the outer spraying pipe and the tip spraying pipe can be reliably performed with a simple structure, and the spraying operation can be performed efficiently and efficiently.

[Brief description of the drawings]

FIG. 1 is a plan view of a spraying work vehicle equipped with a power sprayer.

FIG. 2 is a side view of a spraying work vehicle equipped with a power sprayer.

FIG. 3 is a plan view of a main part showing a connection state between a center boom and a side boom.

FIG. 4 is a rear view of a main part showing a connection state between a center boom and a side boom.

FIG. 5 is an operation rear view of a main part showing a state in which a flexible hose is sandwiched.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Running body 8 Power spreader 9 Central boom 11 Side boom 14 Electric cylinder 18 Spreading pipe 19 Flexible hose 21 Receiving member 23 Pressing member

Continued on the front page (72) Inventor Masahiro Kuwagaki 667 Iida-machi, Izumo-cho, Higashi-Izumo-cho, Yatsuka-gun, Shimane Pref. A) Japanese Utility Model Hei 3-70772 (JP, U) Japanese Utility Model Utility Model No. 1-144420 (JP, U) Japanese Patent Publication No. 39-11015 (JP, B1)

Claims (1)

(57) [Scope of request for utility model registration] 1. A central boom, wherein a side boom is pivotally provided outside a central boom via a pivotal support so as to be able to change its attitude between a sideways protruding attitude and a stowed attitude inside the aircraft. In addition, a scatter pipe is disposed on each of the side booms on both sides of the pivot with a fixed gap therebetween, and the opposite ends of the scatter pipe are connected by a flexible hose, and the scatter pipe is stored in the central boom in a retracted position. A receiving member for receiving and supporting the flexible hose is provided, while a pressing member is provided on the side boom to contact the receiving member in a retracted position, and the flexible hose is provided between the receiving member and the pressing member. A spraying stop device for a spraying work vehicle, characterized in that: