JPH0224907Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to speed sprayers, and in particular to the engine of a speed sprayer that sucks warm air from the engine room to the outside by using air from a blower and its jet action. This relates to a cooling device.

[Prior Art] As shown in FIGS. 6 and 7, a conventional cooling device of this type includes a traveling device 2 that is movable on wheels 1, a drug tank 3, and a drug stored in the drug tank 3. A plurality of nozzles 4 arranged in parallel in a substantially fan-shape capable of spraying water, a pair of jet head plates 5 and 6 that determine the spray direction of these nozzles 4, and a blower with a discharge port 7 opened in the direction of the jet head plates 5 and 6. In the speed sprayer, a bulge 12 is formed in the upper part of a bonnet 11 covering an upper part of an engine chamber 10 adjacent to the jet head plate 5 in which an engine 9 for driving the traveling device 2 is disposed. , bulge 1
2, an opening 13 is formed in a substantially horizontal rear direction, this opening 13 is covered with a net 14, and warm air in the engine compartment 10 is discharged to the outside from this opening 13 via the net 14. .

[Problem to be solved by the invention] However, in the conventional device, in order to prevent rainwater etc. from entering the engine compartment 10, a bulge 12 is formed in the upper part of the bonnet 11, and a bulge 12 is formed in the bulge 12. Since an opening 13 is formed in the horizontal rear direction and this opening 13 is covered by a net 14, the overall height of the speed sprayer is increased, so that it does not collide with the branches, leaves and fruits of fruit trees when spraying orchards, etc. It is also disadvantageous that the height of the fruit tree increases to match the overall height of the speed sprayer, and this makes it difficult to maintain the fruit trees during cultivation, such as with gibbe treatment and bagging, or when harvesting. , a step stool, etc. must be used, which poses problems such as imposing a significant burden of labor on the worker.

[Means for solving the problem] This invention was made in view of the above-mentioned circumstances, and includes a traveling device 21 that can travel on wheels.
A drug tank 24, a nozzle 31 that can spray the drug stored in this drug tank 24, and these nozzles 3
1 is a blower 27 disposed at the discharge port 32, the blower 27 is rotatable, and the upper part is connected to the bonnet 2.
5, and includes a prime mover 28 and the like installed in an engine chamber 26 partitioned between the blower 27 and the blower head plates 29 and 30 in which a discharge port 32 is formed. room 2
In this speed sprayer, a space member 40 is provided projecting at an appropriate interval on the upper edge 29a of the jet head plate 29 on the front side with respect to the traveling direction of the traveling device 21, and the space member 40 is provided at an appropriate interval. The end edge 25a of the bonnet 25 is brought into contact with the end edge 40a of the member 40 to form a through hole 41, and air is sucked in from behind the traveling device 21 by rotation of the blower 27 and discharged to the discharge port 32. to direct hot air in the engine compartment 26 to the through hole 4.
To provide an engine cooling device for a speed sprayer, which allows air to be sucked out from the engine to the atmosphere.

[Effect]

According to this invention, an engine cooling device for a speed sprayer can be obtained that can efficiently exhaust hot air from the engine room to the outside without increasing the overall height or forming a protruding portion on the top.

[Example] An example of this invention will be described below based on the accompanying drawings.

1 and 2 are a side view and a schematic side view showing the entire speed sprayer equipped with an engine cooling system according to this invention.
is a traveling device that can run on wheels 22, a driver's seat 23 in the front part of the traveling device 21, a drug tank 24 in the center, and an engine whose upper part is covered by a bonnet 25 behind the drug tank 24. room 2
6. Inside the engine room 26, there is an engine 28 as a prime mover that drives the traveling device 21 and a blower 27, which will be described later, etc. At the rear of the engine room 26, there is a pair of fan-shaped plates arranged substantially parallel to each other in the front-rear direction. A plurality of nozzles 31 and a plurality of nozzles 31 are arranged in parallel in a fan shape between the pair of eruption head plates 29 and 30, and the eruption head plate 30.
The blower 27 having a discharge port 32 opening toward the nozzle 31 is disposed at the rear of each of the blowers 27 .

In the speed sprayer, the cooling device according to this invention is installed on the lower edge of the rear part of the bonnet 25 that covers the upper part of the engine compartment 26 adjacent to the front side of the jet head plate 29, as shown in FIGS. 3 and 4. and the upper edge 29a of the blowhead plate 29,
A plurality of block-shaped space members 40 are provided protrudingly at appropriate intervals, and the edge 2 of the bonnet 25 is attached to the edge 40a of these space members 40.
5a are brought into contact with each other, and a through hole 41 is formed in a direction along the jet head plate 29 and toward the rear substantially horizontally. The inside of the engine room 26 and the outside are communicated through this hole 41, and the blower 27 connects the nozzle 3 with the outside.
Due to the jet effect when air is blown in one direction, warm air in the engine compartment 26 is forcibly sucked out to the outside through the vent 41.

As shown in FIG. 5, the through hole 41 connects the rear end of the bonnet 25 with the nozzle 3
It is also possible to make it protrude somewhat on the first side. Note that the space member 40 is connected to the jet head plate 2.
It is also possible to form it integrally with 9.

[Effects of the invention] Since the engine cooling system of the speed sprayer according to this invention is as described above, there is no need to form bulges, openings, nets, etc. on the top surface of the bonnet, and there is no need to form bulges, openings, nets, etc. on the top surface of the bonnet. Since there are no objects, the overall height can be lowered, and when controlling orchards, it will not collide with the branches, leaves, fruits, etc. of fruit trees and damage them, and by lowering the fruit trees, the work until harvest can be made more efficient. The vents are formed on the edges including the top of the nozzle head plate and face the high-speed air flow, making use of jet action, which allows hot air in the engine room to be removed more efficiently. It has the effect of being able to discharge.

[Brief explanation of the drawing]

1 and 2 are a side view and a schematic side view showing the entire speed sprayer equipped with an engine cooling device according to this invention, and FIGS. 3 and 4 are perspective views showing the main parts of the speed sprayer. FIG. 5 is a cross-sectional view of a main part of a speed sprayer using another embodiment of the device according to this invention, and FIGS. 6 and 7 are a cross-sectional view of a conventional speed sprayer. FIG. 6 is a schematic side view of the speed sprayer and a view taken in the direction of arrow B shown in FIG. 6. In the figure, 21... traveling device, 24...
Chemical tank, 25...Bonnet, 25a...Edge, 26...Engine compartment, 27...Blower, 28
...Engine, 29,30...Full head plate, 29a...
...Upper edge, 31... Nozzle, 32... Discharge port,
40...Space member, 41...Through hole.

Claims (1)

[Scope of utility model registration request] A traveling device 21 that can run on wheels includes a drug tank 24, a nozzle 31 that can spray the drug stored in the drug tank 24, a blower 27 in which these nozzles 31 are disposed at a discharge port 32, and a blower 27. is rotatable, the upper part is covered by a bonnet 25, and a discharge port 3 is connected between the blower 27 and the blower 27.
In the speed sprayer, the speed sprayer is equipped with a prime mover 28 and the like disposed inside an engine chamber 26 which is partitioned by jet head plates 29 and 30 having no. A space member 40 is protruded from the upper edge 29a of the jet head plate 29 on the front side with respect to the traveling direction of the traveling device 21 at an appropriate interval, and the edge 25a of the bonnet 25 is attached to the edge 40a of the space member 40. are in contact with each other to form a through hole 41, and when the blower 27 rotates, air is sucked in from the rear of the traveling device 21 and discharged to the discharge port 32. An engine cooling system for a speed sprayer that sucks air out from the 41 to the atmosphere.