JPH09271699A - Chemicals spraying vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suck ventilated wind from an engine room, to increase wind force of the ventilated wind and to improve ventilation performance and cooling performance by arranging a radiator in the engine room in the direction being oblique to the discharged sprayed wind from a spray head part to the true side of the engine room. SOLUTION: An engine room 16 and a spray head part 20 are arranged adjoiningly in the front and the back side positioning relations, respectively. The wind generated from a cooling fan 38 and passed through a radiator main body 36 is ventilated toward the obliquely backward of the side of a speed sprayer 10 through a vent hole for ventilation. The discharged sprayed wind from the spray head part 20 is discharged toward the outside in the radial direction of the spray head part 20 and is joined with the ventilated wind from the side wall part 26 and has a force for sucking the ventilated wind. Ventilation performance of the engine room and heat emitting performance of the radiator main body are increased by increasing wind force of the ventilated wind and increasing the flow rate of ventilation of the air in the engine room 16 and the amt. of passing wind in the radiator main body 36 like this.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chemical spraying vehicle such as a speed sprayer, and more particularly to a chemical spraying vehicle that is advantageous for downsizing.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication (Kokai) No. 63-69558 discloses that in order to reduce the overall length and width of a drug spraying vehicle, an engine body is aligned in the longitudinal direction with the longitudinal direction of the drug spraying vehicle in an engine compartment. The radiator is disposed such that the radiator overlaps with the engine main body in the front-rear direction of the chemical spray vehicle, and the radiator is oriented laterally. Also, in the radiator, the cooling fan is on the side opposite to the engine body with respect to the radiator body, sucks air from the engine body, passes it through the radiator body, and discharges it outside the engine compartment. This avoids the adverse effect that the spray outside the engine room is sucked into the engine room and each component in the engine room is corroded due to the spray of the chemical.

[0003]

Problems to be Solved by the Invention JP-A-63-6955
The problems of the chemical spraying vehicle of Japanese Patent No. 8 are as follows. (A) Since the exhaust air from the engine compartment flows substantially right beside, that is, almost parallel to the spray air from the jet head, the spray air serves as exhaust force of air from the engine compartment. Not not. (B) Since the radiator is directed to the side, in order to reduce the minimum turning radius, when the rear part of the vehicle body including the engine compartment cover side wall is shaped to bulge rearward in plan view, the radiator covers the engine compartment cover. As it goes away from the side wall, the efficiency of exhausting air to the outside of the engine room by the cooling fan of the radiator decreases. (C) Since the cooling fan sucks air from the radiator main body, the cooling fan and its drive motor are exposed to the hot air passing through the radiator main body and are required to have high heat resistance.

An object of the present invention is to provide a drug spray vehicle that overcomes the above-mentioned problems.

[0005]

Means for Solving the Problems The chemical spraying vehicle (1
According to (0), the engine room (16) and the spray head (20) are arranged adjacent to each other in a front side and rear side positional relationship, respectively, and the engine main body (28) is longitudinally aligned with the chemical spray vehicle (10). Are arranged in the engine compartment (16) aligned in the front-rear direction, and the engine compartment cover side wall portion (26) has ventilation holes. Radiators (34)
Is equipped with a radiator body (36) and a cooling fan (38), and overlaps with the engine body (28) in the front-rear direction of the chemical spraying vehicle (10) in a position range, and is positioned right beside the engine room (16). Spout head (2
Engine room (16) in a direction that is oblique to the spray air emitted from (0)
It is arranged inside. The cooling fan (38) is arranged so that the direction of the generated wind is outside the engine room (16).

The air in the engine room (16) is cooled by the cooling fan (3
It is sucked by 8), passes through the radiator body (36), is discharged to the outside of the engine room (16) through the ventilation hole in the engine room cover side wall part (26), and then from the spray head (20). It joins with the spray air emitted from. Further, the spray air discharged from the jet head (20) intersects with the exhaust air from the engine room (16), and as a result, the exhaust air from the engine room (16) is sucked in, and the wind force of the exhaust air increases. Thus, the ventilation performance and the cooling performance can be improved as compared with the case where the cooling fan (38) alone performs the ventilation in the engine room (16) and the cooling of the radiator main body (36).

According to another chemical spraying vehicle (10) of the present invention,
The engine room (16) and the spray head (20) are arranged adjacent to each other in a front side and rear side positional relationship, respectively. The engine compartment cover side wall portion (26) has a shape in which the left and right width of the engine compartment (16) is gradually reduced toward the rear, and is provided with a ventilation through hole. The engine body (28) is arranged in the engine compartment (16) with its longitudinal direction aligned with the front-back direction of the chemical spray vehicle (10).
The radiator (34) consists of a radiator body (36) and a cooling fan (3
8) and the engine main body in the front-back direction of the chemical spray vehicle (10).
(28) While overlapping the position range, the engine compartment cover side wall
It is arranged in the engine compartment (16) so as to face almost the (26). The cooling fan (38) controls the direction of the generated wind in the engine room.
It is said to be outside from inside (16).

Since the engine compartment (16) has a shape in which the width in the left-right direction is gradually reduced rearward, the chemical spray vehicle (1
The outermost portion in the turning direction at the time of turning of (0) comes close to the turning center, and the minimum turning radius of the drug spraying vehicle (10) is significantly reduced. On the other hand, the radiator (34) is directed toward the engine compartment cover side wall portion (26) having a shape in which the left-right width is gradually reduced toward the rear, and as a result, the wind generated by the cooling fan (38) is placed directly beside the chemical spray vehicle (10). On the other hand, it becomes an oblique direction and heads toward the spray wind emitted from the jet head (20). As a result, the air in the engine room (16) is sucked by the cooling fan (38), passes through the radiator body (36), passes through the ventilation hole of the engine room cover side wall part (26), and passes through the engine room ( It is discharged to the outside of 16) and then merges with the atomizing wind emitted from the spray head (20). The emitted spray air sucks the combined exhaust air from the engine room (16), and thus the exhaust wind force increases. Thus, the ventilation performance and the cooling performance can be improved as compared with the case where the cooling fan (38) alone performs the ventilation in the engine room (16) and the cooling of the radiator main body (36).

According to another drug spraying vehicle (10) of the present invention,
The engine room (16) and the spray head (20) are arranged adjacent to each other in a front side and rear side positional relationship, respectively. The engine body (28) is arranged in the engine compartment (16) with its longitudinal direction aligned with the front-rear direction of the chemical spray vehicle (10), and the engine compartment cover side wall portion.
(26) has a ventilation hole. The radiator (34) includes a radiator body (36) and a cooling fan (38), and overlaps with the engine body (28) in the front-rear direction of the chemical spray vehicle (10) and has a ventilation through hole. Directed to the engine compartment (16)
It is arranged inside. The cooling fan (38) is arranged so that the direction of the generated wind is outside the engine room (16). The wind direction defining member is provided in the ventilation passage so that the exhaust air from the ventilation passage is directed toward the spray air discharged from the jet head (20).

The airflow direction regulating member directs the exhaust air from the ventilation hole toward the spray air discharged from the jet head (20), so that the air in the engine room (16) is cooled by the cooling fan (38). It is sucked, passes through the radiator body (36), is discharged to the outside of the engine room (16) through the ventilation hole in the engine room cover side wall part (26), and is then discharged from the spray head (20). Join the wind. In this confluence, the emitted spray air sucks the exhaust air, so that the wind force of the exhaust air increases. Thus, the cooling fan (3
8) Ventilation in the engine room (16) and radiator body (3
Ventilation performance and cooling performance can be enhanced as compared with the case of performing cooling in 6). If there is no wind direction regulating member, the exhaust air from the engine compartment (16) will flow in the direction of the radiator (34), but the wind direction regulating member causes the exhaust air to flow in the direction of the radiator (34). Correct the direction so that it is directed obliquely rearward, for example, the point where the discharge air confluence with the discharge spray wind is close to the jet head (20) and the discharge wind is directed toward the direction where the suction force of the discharge wind is strong. Can be changed.

According to the chemical spraying vehicle (10) of the present invention, the cooling fan (38) is installed in the engine body with respect to the radiator body (36).
It is arranged on the (28) side.

The cooling fan (38) is disposed on the engine body (28) side with respect to the radiator body (36) and generates the passing air of the radiator body (36). The sucked air is discharged to the radiator body (36) side. Therefore, the cooling fan (38) is not exposed to the high temperature air passing through the radiator main body (36), so that the temperature rise is appropriately suppressed. As a result, the heat resistance of the cooling fan (38) and the motor (when the cooling fan (38) is driven by the motor) can be reduced.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a plan view of the speed sprayer 10 showing only the inside of the engine compartment 16 as seen through. Speed sprayer
10 is, in order from the front side, a driver's seat 12 in which a driver gets in to drive the speed sprayer 10, a drug tank 14 for storing a liquid drug, an engine room 16 in which an engine main body 28 and the like are arranged, and a peripheral part. A jet head 20 having a plurality of nozzles 18 arranged along it, and a blower 22 for discharging the air sucked from the rear of the speed sprayer 10 to the jet head 20 are provided. Each nozzle 18 is directed outward in the radial direction of the spray head 20 at each position, and the medicine from each nozzle 18 is sprayed and is discharged outward in the radial direction of the spray head 20. The speed sprayer 10 keeps the width in the left-right direction constant in the range of the driver's seat 12 and the medicine tank 14, and gradually reduces the width in the left-right direction toward the rear in the range of the engine room 16, the spray head 20, and the blower 22, As a result, the minimum turning radius of the speed sprayer 10 is made smaller. α represents ½ of the taper angle of the outer contour line of the engine chamber 16, the jet head 20, and the blower 22 in plan view, and is, for example, 30 to 45 °.

The engine compartment cover 24 covers the engine compartment 16 and its left and right parts are pivotally supported at the center of the ceiling of the engine compartment 16 and are wing-shaped so as to open upward by pivoting around the pivot point. Or engine room 16
It is pivotally supported in front of the ceiling part of and the whole is opened to the medicine tank 14 side by the rotation around the pivot point. The side wall portion 26 of the engine room cover 24 is also oblique to the side of the speed sprayer 10 due to the tapered shape of the width of the rear portion of the speed sprayer 10 in the left-right direction.
It is facing diagonally backward to the side. Ventilation holes for ventilation in the engine room 16 are formed in the left and right side wall portions 26. For safety, a net is attached to the ventilation holes or the number of ventilation holes is set. The size of each ventilation through hole is appropriately reduced while increasing. Inside the engine compartment 16, the engine main body 28 is arranged with its longitudinal direction (= output shaft direction) set in the front-back direction of the speed sprayer 10. The spray pump 30 is disposed on the side of the engine body 28, is driven by the rotational power from the engine body 28 via the belt 32, sucks the drug in the drug tank 14, and then to the nozzle 18 of the spray head 20. Send out. The radiator 34 is arranged facing the side wall portion 26 at a side edge portion of the engine main body 28 on the side opposite to the spray pump 30 in the left-right direction. In FIG. 1, since α is 30 to 45 °, the side wall portion 26 and the radiator main body 36 face the surfaces obliquely rearward by 30 to 45 ° with respect to the immediate side of the speed sprayer 10.
The radiator 34 communicates with the engine body 28 via hoses 40 and 42, and is disposed on the engine body 28 side with respect to the radiator body 36 as a circulation passage for the cooling liquid from the engine body 28 and the radiator body 36. A cooling fan 38 for generating the airflow passing through the radiator body 36 is provided. Cooling fan 38
Is driven by, for example, a motor.
It may be driven by the rotational power from.

The rotational power of the engine body 28 is used for the driving force of the drive wheels (not shown) of the speed sprayer 10 and also for the rotational power of the blower 22. Blower
The air drawn by the 22 from behind the speed sprayer 10 is
It is supplied from the blower 22 to the jet head 20 and entrains the chemical spray from the nozzle 18 and is discharged outward in the radial direction of the jet head 20, that is, sideways and upward in the direction perpendicular to the front-back direction of the speed sprayer 10. It On the other hand, the cooling fan 38 draws in air from the engine body 28 side, and cools the radiator body 36.
To discharge. Since the cooling fan 38 is not exposed to the hot air that has passed through the radiator body 36, the heat resistance of the cooling fan 38 and its drive motor can be reduced.

The wind generated by the cooling fan 38 and passing through the radiator main body 36 passes through the ventilation hole of the side wall portion 26 to the diagonally rearward side of the speed sprayer 10 (30 to 45 ° diagonally rearward with respect to the right side). Is discharged toward. The spray air emitted from the jet head 20 is emitted outward in the radial direction of the jet head 20, and thus has a force of joining with the exhaust air from the side wall portion 26 and sucking the exhaust air. Therefore, the wind force of the exhaust air increases, the exhaust flow rate of the air in the engine room 16 and the air flow rate passing through the radiator body 36 increase,
The ventilation performance of the engine room 16 and the heat dissipation performance of the radiator body 36 are increased.

A looper may be provided in the ventilation hole of the side wall portion 26 of the engine room cover 24 as a wind direction regulating member whose direction is adjustable or fixed. During operation of the speed sprayer 10, the looper directs the exhaust air from the engine compartment 16 to the diagonally rearward side of the speed sprayer 10 and joins the exhaust air with the spray air emitted from the jet head 20. When there is no looper, the exhaust air from the engine compartment 16 flows obliquely rearward with respect to the right side at an angle of 30 to 45 °, but this angle can be appropriately corrected by providing an appropriate looper. For example, the confluence point of the discharge air from the spray head 20 to the spray air discharged can be changed by a looper to a position closer to the spray head 20, that is, a strong suction force.

[Brief description of drawings]

FIG. 1 is a plan view of a speed sprayer in which only an engine compartment is seen through.

[Explanation of symbols]

 10 Speed Sprayer (Chemical Sprayer) 16 Engine Room 20 Spray Head 26 Side Wall (Engine Chamber Cover Side Wall) 28 Engine Main Body 34 Radiator 36 Radiator Main Body 38 Cooling Fan

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[Procedure amendment]

[Submission date] March 19, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0017

[Correction method] Change

[Correction contents]

A louver may be provided in the ventilation hole of the side wall portion 26 of the engine compartment cover 24 as a wind direction regulating member whose direction is adjustable or fixed. During operation of the speed sprayer 10, this louver directs the exhaust air from the engine compartment 16 to the diagonally rearward side of the speed sprayer 10.
The exhaust air is merged with the spray air emitted from the jet head 20. Le
If there is no fan, the exhaust air from the engine compartment 16
Although it flows at an angle of 30 to 45 ° obliquely rearward from the side, this angle can be appropriately corrected by providing an appropriate louver . For example, the confluence point of the exhaust air from the spray head 20 to the spray air discharged can be changed to a position closer to the spray head 20 by the louver , that is, a strong suction force.

Claims (4)

[Claims] 1. An engine room (16) and a spray head (20) are arranged adjacent to each other in a front side and rear side positional relationship, respectively, and an engine body (28) extends in the longitudinal direction of a chemical spraying vehicle (10). It is arranged in the engine compartment (16) aligned in the front-rear direction, the engine compartment cover side wall (26) is provided with a ventilation hole, and the radiator (34).
The radiator main body (36) and the cooling fan (38) are provided, and the engine main body (28) overlaps the position range in the front-back direction of the chemical spraying vehicle (10), and is located directly beside the engine compartment (16). With respect to the spray head (20) is arranged in the engine room (16) in an oblique direction toward the spray air discharged, the cooling fan (38) the direction of the generated wind the engine room ( 16) A chemical spray vehicle characterized by being inside and outside. 2. An engine compartment (16) and a spray head (20) are arranged adjacent to each other in a front side and rear side positional relationship, respectively, and an engine compartment cover side wall section (26) is directed toward the rear side of the engine. The chamber (16) has a shape that gradually reduces the left and right width, and is provided with a ventilation through-hole.
(10) is arranged in the engine compartment (16) aligned in the front-rear direction, the radiator (34) is provided with a radiator body (36) and a cooling fan (38), of the chemical spray vehicle (10). The cooling fan (38) is arranged in the engine compartment (16) in a direction substantially facing the engine compartment cover side wall portion (26) while overlapping the position range with the engine body (28) in the front-rear direction. ) Is a chemical spray vehicle characterized in that the direction of the generated wind is set to the outside from the inside of the engine room (16). 3. The engine room (16) and the spray head (20) are arranged adjacent to each other in a front side and rear side positional relationship, respectively, and the engine body (28) extends in the longitudinal direction of the chemical spray vehicle (10). It is arranged in the engine compartment (16) aligned in the front-rear direction, the engine compartment cover side wall (26) is provided with a ventilation hole, and the radiator (34).
Is provided with a radiator body (36) and a cooling fan (38), and overlaps with the engine body (28) in the front-rear direction of the chemical spraying vehicle (10) while facing the ventilation passage. The cooling fan is disposed in the engine room (16) and is directed to the cooling fan.
(38) the direction of the generated wind is outside from the inside of the engine room (16), the wind direction regulating member, the exhaust air from the ventilation through-hole, of the spray air emitted from the jet head (20). A chemical spraying vehicle, characterized in that it is provided in the ventilation hole so as to face toward the user. 4. The cooling fan (38) according to claim 1, wherein the cooling fan (38) is disposed on the engine body (28) side with respect to the radiator body (36). Drug sprayer.