JPH0116533Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a sprayer for spraying a chemical, and particularly to a chemical tank that can be detachably mounted on a driveable vehicle.

As shown in FIGS. 1a and 1b, the conventional chemical tank of this type of sprayer has a frame body that holds both outer walls and a bottom wall that face each other in the front and back direction of the chemical tank 1, and the entire frame body is framed by pipes or the like. 2, it is removably mounted on a driveable vehicle by a frame 4 which connects the upper ends of both the upright parts 2a and 2b to each other and is fixed to a reinforcing pipe 3 that surrounds and holds the side wall of the drug tank 1. or second
As shown in Figures a and b, a communication hole 12 is formed between the wall surfaces facing each other in the front and back direction of the drug tank 11, and upright portions 13a and 13 that can hold the facing outer wall surfaces are formed.
A vehicle capable of running (not shown in the figure) is supported by a frame 15 which connects the upright parts 13a and 13b of the frame main body 13, which has a shape as a whole, and is provided with a reinforcing pipe 14 that penetrates the communication hole 12. (omitted)).

However, in the drug tank 1 shown in FIGS. 1a and 1b, the structure of the frame 4 for mounting on a vehicle is
The reinforcing pipe 3 is bent and installed between both the upright parts 2a and 2b along the side surface of the drug tank 1, and both the upright parts 2
a, 2b must be reinforced, making the structure complicated. Also, if the reinforcing pipe 3 is eliminated, it becomes necessary to make both the upright parts 2a, 2b quite strong, and the entire frame 4 becomes large. I become confused. In addition, in the example shown in the figure, the drug tank 1
In order to fix it to the frame 4, it is connected to the front or rear upright part 2a or 2b and the bottom, so there is a risk that the strength will be weakened.

In addition, in the drug tank 11 shown in FIGS. 2a and 2b, in order to reinforce the frame 15, a reinforcing pipe 14 is inserted through the through hole 12 of the drug tank 11 and installed between the two upright portions 13a and 13b. ,
In order to fix the drug tank 11 to the frame 15, the drug tank 11 is fixed to the front or rear upright portion 13.
a or 13b and the bottom. That is, when mounting the drug tank 11 on a vehicle, it is necessary to perform reinforcement work on the mounting frame 15 and work to secure the drug tank 11 to the frame 15, which complicates the mounting and assembly work. I consider it a thing.

This idea was created in view of the above-mentioned circumstances, and its purpose is to erect and fix a rod-shaped reinforcing material between the opposing inner wall surfaces of a container-shaped tank body, and to connect the reinforcing material to both inner wall surfaces. The fixed end portion and the frame are screwed together by a coupling means through the opposing walls of the tank body, so that the tank body is fixed to the frame and at the same time, the tank body is installed and fixed inside the tank body. The reinforcing material can also be used to reinforce the frame, making it easier to assemble and mount the drug tank, and the structure of the frame can be made simpler and lighter, making it even stronger. Another object of the present invention is to provide a sprayer chemical tank that can be made even stronger.

Hereinafter, this invention will be explained in detail based on the accompanying drawings.

FIG. 3 is a plan view of a boom sprayer comprising a retractable boom equipped with a plurality of nozzles, in which a chemical tank according to this invention is applied. In the drawing, 20 is a wheel 21
At the rear of the tractor 20, a drug tank 22 according to this invention and a number of nozzles 23 are disposed, and a boom 24, etc., which is formed to be extendable and retractable, is attached to a frame 2.
5, it is removably mounted.

4 and 5 are a side view and a plan view showing the rear part of the boom sprayer shown in FIG.
Reference numeral 22 designates a drug tank according to the above-mentioned invention, and the drug tank 22 has upright portions 25a and 25 in the front and back direction.
b, the lower part of the front upright part 25a is bent to form a bottom part 25c, and the frame 25 is connected to the lower part of the rear upright part 25b, and the whole is framed. It is removably mounted on the rear of the vehicle. and,
The drug tank 22 is provided with a tank body 22' made of reinforced plastic or the like and having a substantially rectangular container shape as a whole. And tank body 2
2' is the nozzle 2 via a pump (not shown).
3. FIG. 6 is a sectional view showing a portion of the drug tank 22 fixed to the frame 25, showing the inner wall surfaces 22a', which face each other in the front-rear direction of the tank body 22',
A reinforcing pipe 26, which is a reinforcing member and whose both ends are closed by plates 26a and 26b, is installed and fixed between substantially central portions of each of 22b'. In this figure, it is molded into the tank body 22'.
Screw holes 26a' and 26b' are formed approximately in the center of the plates 26a and 26b, respectively. In addition,
26a' may be a small hole. And the front screw hole 2
A bolt 27 serving as a coupling means is screwed through from the inside to 6a', and the head portion of the bolt 27 is fixed to the inside of the plate 26a. bolt 27
The penetrating end of the front wall 22a of the tank body 22'
It also passes through a small hole 22a formed in the frame 25, and is further formed in the upright portion 25a at the front of the frame 25, which contacts the front outer wall surface 22a'' of the drug tank 22 via a packing 28 made of an elastic material. Small hole 25
a' and is inserted into the frame 25 by a nut 29.
It is screwed to the upright portion 25a in front of the. In addition,
30 is a spring washer, and 31 is a flat washer.

On the other hand, the tip of a bolt 32, which is a connecting means that is screwed through and connected to a screw hole 25b' drilled in a rear upright portion 25b of the frame 25, is inserted into a screw hole 26b' at the rear of the reinforcing pipe 26. Main body 22'
The screws are connected after passing through a small hole 22b drilled in the rear wall 22b of the main body. In addition, adjustment nuts 33 and 34 are screwed to the bolt 32, and the rear wall 22
b and the upright portion 25b, the rear wall 22
b can be fixed to the upright portion 25b. Further, in the figure, 35 is a spring washer, and 36 is a flat washer.

In the above description, the reinforcing pipe 26 is shown as being installed between the front and rear walls of the tank body 22', but it is also possible to install the reinforcing pipe 26 between the left and right walls. A frame with uprights is used.

Since the drug tank according to this invention is as described above, it is possible to fix the drug tank to the frame by fixing the drug tank to the front or rear upright part and bottom of the frame, like conventional drug tanks. In comparison, the drug tank according to this invention can be fixed more firmly to the frame by fixing it to the opposing upright parts at the front and rear of the frame. Since the reinforcing pipe is installed inside, by fixing the tank to the frame, both upright parts of the frame can be reinforced at the same time. It has the advantage of shortening the assembly time and reducing costs compared to the conventional method.

[Brief explanation of the drawing]

Fig. 1 a, b and Fig. 2 a, b are plan views and side views showing different examples of conventional chemical tanks and frames, respectively, and Fig. 3 is a plan view of a boom sprayer equipped with a chemical tank according to the present invention. 4 and 5 are a side view and a plan view showing the rear part of the boom sprayer, and FIG. 6 is a sectional view showing a portion where the chemical tank is attached to the frame. In the drawings, 20...vehicle (tractor), 2
1...wheels, 22...drug tank, 22'...tank body, 22a, 22b...walls (front and rear walls),
22a', 22b'...Inner wall surface, 23...Nozzle port, 25
... Frame, 26 ... Reinforcement material (reinforcement pipe),
27, 32 . . . coupling means (bolts).

Claims (1)

[Scope of utility model registration request] The chemical tank of the sprayer is provided with a frame removably mounted on a vehicle that can run on wheels, and the frame is provided with a chemical tank and a nozzle connected to the chemical tank via a pump, the chemical tank having a container shape. A rod-shaped reinforcing material is installed and fixed between the opposing inner wall surfaces of the tank body, and the portion of the reinforcing material that is fixed to the inner wall surfaces and the frame are connected to each other through the opposing walls of the tank main body. The sprayer's chemical tank is screwed together by means of a coupling means.