JPH0541804Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] Generally, the spray liquid tank of a riding tractor-mounted boom sprayer has a tall structure in order to bring the center of gravity of the boom sprayer closer to the tractor side and improve mountability. It's summery. As a result, when supplying water to the tank or adding pesticides, etc.,
Inconveniences arise in that workers standing on the ground cannot reach the tank lid or are forced to take an awkward posture. Conventionally, in this type of boom sprayer, the one described in Japanese Utility Model Application Publication No. 183165/1983 and whose structure is shown in Fig. 4,
A center boom c located below the tank a is supported on the main body b on which the spray liquid tank a is mounted, and a side boom d is connected to both ends of the center boom c. has a structure in which the spraying liquid in the tank a is fed through an appropriate pressure feeding means (not shown) and a nozzle e is arranged in line with the center boom c; in this case, the spraying agent When supplying water or putting pesticides etc. into tank a, use the center boom c as a step and step on it.
Water and pesticides were poured into the tank through the tank lid f installed at the top of the tank.

[The problem that the idea attempts to solve]

By the way, when working as above,
The height from the ground to the center boom c is quite high (about 70 cm), making it difficult to get on and off.Also, since the center boom c has the short side of each pipe as the top surface, the area is small, making it slippery and dangerous. Since the distance from the top of the center boom c to the tank lid f also depends on the height of the worker, it was inevitable that the worker's working posture would be uncomfortable.

[Means to solve the problem]

Here, in order to solve the above-mentioned problems, this invention has a tank 1 that contains a spray liquid and has a lid 1a on the top surface, a center boom 19 located at the rear of this tank 1, and a center boom 19 that is attached to both ends of the center boom 19. The tank 1 is connected to the tank 1 via appropriate pressure feeding means.
In the boom sprayer as described above, which has a main body 6 mounted with a side boom 20 to which a spraying liquid is fed, and a side boom 20 having nozzles 21 arranged in a row together with the center boom 19, a boom sprayer is installed upright at the rear of the main body 6. a fixed mast 11 , a movable mast 15 erected at the upper edge of the center boom 19 and moved relative to the fixed mast 11 via a rolling means 14;
A first step 22 is installed between these movable masts 15 and projects rearward, and a second step 22 is installed on the rear edge of the center boom 19 and projects rearward.
3 and a third step 25 rotatably connected to the tip of the second step 23 with a pin.

[Effect]

In the apparatus configured as described above, when an operator needs to approach the lid 1a of the tank 1 in order to supply water or inject medicine etc. into the tank 1,
The worker first steps on the third step 25, and then moves on to the second step 23 and the first step 22.
The worker ascends to the first step 22, opens the front cover 1a, supplies water into the tank 1 via a hose, etc., and puts in agricultural chemicals as appropriate. By placing the first step 22 in such a position that the user looks down on the lid 1a while standing on the first step 22,
This makes it possible to safely and easily carry out the operations of supplying water, adding pesticides, etc.

〔Example〕

Next, this invention will be explained in detail with reference to the embodiments shown in FIGS. 1 to 3.

In the figure, reference numeral 1 denotes a tank in which a spray liquid is stored, and this tank 1 has a lid 1a for water supply or chemical injection on the top surface, and is connected to a riding tractor 2 via a three-point link 3 and a universal joint 4. It is mounted on a main body 6 having a frame 5, and on this main body 6 equipped with a stand 7, an oil tank 8, a power sprayer 9, a speed increaser 10, etc. are mounted, as is well known, and the main body A pair of fixed masts 11 with a U-shaped cross section are erected on the frame 5 at the rear of the frame 5, and rolling means 14 consisting of front and rear guide rollers 12 and left and right guide rollers 13 are connected to these fixed masts 11. The gate-shaped movable mast 15 is moved by the action of a telescopic hydraulic cylinder 18 disposed between a horizontal member 16 at its upper end and a cross member 17 that connects the fixed mast 11. It can be moved up and down along. At the rear of this fixed mast 11, a movable mast 15
A center boom 19 is attached to the center boom 19, and side booms 20 are connected to both ends of the center boom 19 (not shown in detail).
9 and the side boom 20, nozzles 21 are arranged in a row in a known manner.

In this invention, a first step 22 that projects rearward is installed between the movable masts 15, and a second step 23 that projects rearward is installed on the rear edge of the center boom 19. A third step 25 is rotatably connected to the tip of the second step 23 via a pin 24.

In use, the movable mast 15 moves up and down under the action of the telescoping hydraulic cylinder 18, and at this time, the front and rear guide rollers 12 and the left and right guide rollers 13 of the rolling means 14 roll within the fixed mast 11. This restricts the vertical movement of the center boom 19 and the side booms 20 connected thereto.

When supplying water and pesticides to the tank 1, the operator performs the third step 25 and the second step 2.
3. It is possible to approach the upper lid 1a of the tank 1 by stepping on the first steps 22 one after another.

[Effects of the invention] Since the third step is located lower than the top surface of the center boom, getting on and off from the ground is easy and workability is good.

Since the second step extends to the rear of the center boom, it can take up a large area and is highly safe.

Once on the first step, the height of the tank lid will be approximately at the height of the worker's chest, and the lid will look down on the worker, so there is no need to worry about pesticides getting into the worker's eyes. It is safe and easy to open and close the lid.

Since there is no mast in the center of the center boom, the worker's knees do not hit the mast, improving work efficiency.

Since the first step also serves as a reinforcing material for the moving mast, it is strong, lightweight, and inexpensive.
Furthermore, since members can be omitted, a simple design is possible.

[Brief explanation of drawings]

FIG. 1 is a side view of the device of this invention, FIG. 2 is a plan view thereof, FIG. 3 is a rear view, and FIG. 4 is a rear view of a conventional device. In addition, in the figure, 1...tank, 1a...
Lid, 6...Main body, 11...Fixed mast, 14...
Rolling means, 15...Moving mast, 19...Center boom, 21...Nozzle, 22...First step, 23...Second step, 25...Third step.

Claims (1)

[Scope of utility model registration request] A tank 1 containing a spray liquid and having a lid 1a on the top surface, a center boom 19 located at the rear of the tank 1, and a center boom 19 connected to both ends of the center boom 19 and connected to the tank 1 through appropriate pressure feeding means. In this boom sprayer, a boom sprayer has a main body 6 on which is mounted a side boom 20 to which a spraying liquid is fed, and a side boom 20 on which nozzles 21 are arranged in a row together with the center boom 19.
1, which is erected on the upper edge of the center boom 19;
A movable mast 15 that is moved with respect to the fixed mast 11 via a rolling means 14, a first step 22 that is installed between these movable masts 15 and projects rearward, and a rear edge of the center boom 19. a second step 23 protruding rearward from the second step 23;
A boom sprayer elevating device comprising a third step 25 which is rotatably pin-coupled to the tip of the step 23.