JP3961232B2 - Speed sprayer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a speed sprayer in which a cabin, a chemical solution tank, an engine room, and a blower fan are sequentially provided from the front part to the rear part of the chassis and provided with the cabin air conditioner.
[0002]
[Prior art]
Generally, a speed sprayer pumps a chemical solution in a chemical tank installed in the vehicle body to a nozzle disposed at the rear of the vehicle body by a pump, and arranges a chemical solution blown out from the nozzle to the rear portion of the vehicle body. It is diffused by the air flow blown out from the blower fan that is blown to the outside, so that it can efficiently spread over a wide area while running in a field such as an orchard. Among them, an example having a cabin is shown in FIG.
[0003]
The illustrated speed sprayer 1 ′ is provided with a pair of left and right front wheels 12 and 12 and rear wheels 14 and 14 on the front side and the rear side of the chassis 10, respectively. A cabin 20 provided with a steering handle 22 and the like is provided. On the rear side of the cabin 20, there is provided a sideways semi-cylindrical chemical liquid tank 25 ′. Immediately after the chemical liquid tank 25 ′, an engine room 30 is formed in which air circulation ports 32 and 32 are formed. In the room 30, an internal combustion engine (not shown) such as a diesel engine that serves both for traveling and for driving a blower fan is accommodated.
[0004]
Behind the engine room 30, an axial blower fan 40 having a cylindrical wind tunnel 42 and an air outlet 44 is disposed, and the air outlet 44 has a required number along the circumferential direction of the wind tunnel 42. Are arranged.
Although not shown on the left side of the driver's seat 21 in the cabin 20, a chemical supply pump that pumps the chemical liquid to the nozzle 45 is disposed, and the chemical liquid sprayed to the outside from the nozzle 45 is It is diffused by the air flow from the blower fan 40 blown outward from the air outlet 44, and thereby, the spraying operation of the chemical solution can be performed while running while operating the steering handle 22 in an orchard or the like. It can be done.
[0005]
In the speed sprayer 1 ′ having the cabin 20 having such a configuration, an air conditioner (including both air conditioners and air conditioners) is used for air conditioning in the cabin 20 and defrosting of the front window 23. Equipment is essential. The air conditioner is usually composed of an indoor heat exchange unit, an outdoor heat exchange unit, a refrigerant compression compressor, and a piping system connecting them, and the speed sprayer 1 'is equipped with an air conditioner. In this case, the indoor heat exchange unit 60 may be arranged in the cabin 20 and the refrigerant compression compressor 70 may be arranged in the engine room 30. However, where the outdoor heat exchange unit is arranged becomes a problem. .
[0006]
Conventionally, in the speed sprayer 1 ′ as described above, the outdoor heat exchange unit 50 ′ is disposed in the engine room 30 as shown by a one-dot chain line in FIG. 3, or shown by a two-dot chain line in FIG. As described above, it has been proposed or put into practical use that the outdoor heat exchange unit 50 ″ is disposed beside (outside) the liquid chemical tank 25 ′.
[0007]
The cabin 20 is usually formed of glass, a resin panel, a steel skeleton, and the like, and is equipped with a full cabin that protects the driver from drug exposure, a fall accident, and the like. The vehicle is operated while seeing the surrounding situation through a glass window (side window, rear window) including the front window 23 arranged in the window. Among them, the front window 23 is provided with a wiper 23a, a washer device (not shown), and the like. When the front window 23 is contaminated with spraying chemicals, the wiper 23a, the washer device, etc. It is supposed to be.
[0008]
[Problems to be solved by the invention]
However, disposing the outdoor heat exchange unit in the engine room is difficult to secure the installation space particularly in the case of a small speed player, and in addition to the outdoor heat exchange unit (condenser) and the engine. Due to the interaction with the engine cooling radiator arranged in the room, the heat balance of the internal combustion engine may be lost, and the engine cooling performance may be deteriorated. When placed beside (outside) the chemical solution tank, maintenance is good, but the outdoor heat exchange unit is exposed to wind and rain or spray chemical solution, and the branches of fruit trees collide with each other. There were problems such as becoming easier.
[0009]
Further, as described above, the wiper 23a and a washer device (not shown) are provided in the front window 23 of the cabin 20, but the wiper and washer are usually provided in the rear window of the cabin 20. No particular measures have been taken to prevent dirt from adhering to the device, etc., so that if the sprayed medicine adheres and becomes dirty, the driver goes out of the cabin 20 and hands each of the rear windows by hand. It was necessary to perform the operation | work which wipes the glass etc. of this, and this operation | work was troublesome and had deteriorated the efficiency of the spraying operation.
[0010]
The present invention was made to solve the conventional problems as described above, and the object of the present invention is to prevent the outdoor heat exchange unit of the air conditioner from adversely affecting the engine cooling performance, etc. It is an object of the present invention to provide a speed sprayer that is reasonably disposed so that failure or the like is unlikely to occur and that maintenance can be easily performed, and that dirt on a glass surface of a cabin can be easily wiped off.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, a speed sprayer according to the present invention is basically provided with a cabin, a chemical tank, an engine room, and a blower fan sequentially from the front to the rear of the chassis, and for the cabin. A speed sprayer provided with an air conditioner, provided with a recess having front and lower surfaces opened on the front side of the chemical tank, and in which the outdoor heat exchange unit of the air conditioner is disposed. The outdoor heat exchange unit is composed of an outdoor condenser and an outdoor fan, and air for heat exchange by the outdoor fan is formed through the lower surface opening of the recess and a gap formed between the cabin and the chemical liquid tank. The heat exchanging air circulated through the gap is further raised and discharged toward the rear window of the cabin, so It is characterized by being configured to prevent.
[0012]
In a further preferred aspect, the outdoor heat exchange unit is attached and held on the chassis via an attachment holding member.
[0013]
In another preferred embodiment, a maintenance hatch that can be arbitrarily opened and closed is provided in an opening formed in a portion of the rear wall portion of the cabin facing the front opening of the tank.
[0014]
In a preferred embodiment of the speed sprayer according to the present invention configured as described above, the outdoor heat exchange unit is disposed in a recess provided on the front side of the chemical tank and having an open front and bottom surface. The outdoor heat exchange unit and the engine cooling system (such as a radiator in the engine room) are clearly separated and do not adversely affect each other. Therefore, it is avoided that the engine cooling performance is reduced. In addition, the outdoor heat exchange unit is disposed in the recess, in other words, in a portion surrounded by the chemical solution tank and the rear wall of the cabin, so that it is not directly exposed to wind and rain or spray chemical solution, In addition, fruit tree branches do not collide with each other during traveling work. Therefore, it is difficult for breakdowns to occur, and the chemical tank and the rear wall of the cabin also serve as a protective cover, making it possible to reliably prevent accidents such as human injury from the outdoor heat exchange unit (fan). it can.
[0015]
In addition, by mounting and holding the outdoor heat exchange unit on the chassis via the mounting and holding member, the outdoor heat exchange unit becomes independent from the chemical tank and the cabin. In addition, convenience such as maintenance and replacement of the chemical tank can be achieved.
[0016]
Furthermore, a maintenance hatch that can be arbitrarily opened and closed is provided in a portion of the rear wall of the cabin facing the front opening, so that the maintenance of the outdoor heat exchange unit can be easily performed from the cabin interior side at any time. be able to.
In addition to the above, the outdoor heat exchange unit is disposed between the refrigerant compression compressor disposed in the engine room and the indoor heat exchange unit disposed in the cabin. The advantage that the piping system can be configured simply is also obtained.
[0017]
Furthermore, the rear window of the cabin can prevent adhesion of a sprayed medicine or the like that tends to adhere to the glass surface of the rear window by an air flow discharged upward through an outdoor condenser, Adhering dirt is easily wiped away.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 and FIG. 2 are a left side view and a plan view showing a front half part in one embodiment (first embodiment) of a speed sprayer according to the present invention.
[0019]
Since the basic configuration of the speed sprayer 1 of the illustrated embodiment is substantially the same as the speed sprayer 1 ′ of the conventional example shown in FIG. 3, the parts corresponding to the respective parts of the speed sprayer 1 ′ shown in FIG. The functional parts are denoted by the same reference numerals, and the duplicate description thereof is omitted. In the following, the arrangement mode of the outdoor heat exchange unit, which is a difference, will be described mainly.
[0020]
In the speed sprayer 1 of the illustrated embodiment, a recess 27 whose front and bottom surfaces are opened is provided in the center in the left-right direction on the front side of the chemical liquid tank 25, and the outdoor heat exchange unit 50 of the air conditioner is provided in the recess 27. It is arranged.
The outdoor heat exchange unit 50 includes an outdoor capacitor 52 having a rectangular frame-shaped portion, and an outdoor fan 54 disposed on the upper side of the outdoor capacitor 52. 10 are mounted and held via a pair of left and right mounting and holding members 57 and 57 and are arranged independently without interfering with the chemical liquid tank 25 and the cabin 20.
[0021]
In such an outdoor heat exchange unit 50, the air A for heat exchange (heat radiation or heat absorption) by the outdoor fan 54 is not limited to this, but as shown by the broken-line arrows in FIG. It is sucked in from the lower surface opening 27b side of the location 27 and passes through the outdoor condenser 52, and is formed between the rear wall portion 24 of the cabin 20 and the chemical liquid tank 25 via the front surface opening 27a of the recess 27. The gap S is discharged to the outside.
Also, a maintenance hatch 72 attached from the cabin 20 side, which can be arbitrarily attached / detached or opened / closed, at an opening 71 formed in a portion of the cabin 20 facing the front opening 27a in the rear wall 24. Is provided.
[0022]
In the speed sprayer 1 of this embodiment configured as described above, the outdoor heat exchange unit 50 is disposed in a recess 27 provided on the front side of the chemical liquid tank 25 and having an open front and bottom surface. Therefore, the outdoor heat exchange unit 50 and the engine cooling system (such as the radiator in the engine room 30) are clearly separated and do not adversely affect each other. Therefore, it is avoided that the engine cooling performance is reduced. Further, since the outdoor heat exchange unit 50 is disposed in a recess, in other words, in a portion surrounded by the chemical liquid tank 25 and the rear wall portion 24 of the cabin 20, wind and rain, spray chemical liquid, etc. There is no direct exposure to the fruit trees, and fruit tree branches do not collide with each other. Therefore, failure or the like is unlikely to occur, and the chemical tank 25 and the rear wall 24 of the cabin 20 also serve as a protective cover, so that a person touches the outdoor heat exchange unit 50 (the fan 54). Accidents such as injury can be reliably prevented.
[0023]
Further, since the outdoor heat exchange unit 50 is attached and held to the chassis 10 via the attachment holding members 57 and 57, the outdoor heat exchange unit 50 is independent from the chemical tank 25 and the cabin 20. In addition to the convenience of the incorporation, the maintenance and replacement of the chemical solution tank 25 are also facilitated.
[0024]
Furthermore, since a maintenance hatch 72 that can be arbitrarily opened and closed is provided in a portion of the cabin 20 facing the tank front opening 27a in the rear wall portion 24, the maintenance of the outdoor heat exchange unit 50 can be performed. It can be easily performed anytime from the indoor side.
[0025]
In addition to the above, the outdoor heat exchange unit 50 is disposed between the refrigerant compression compressor 70 disposed in the engine room 30 and the indoor heat exchange unit 60 disposed in the cabin 20. Therefore, the advantage that the piping system can be configured simply is also obtained.
4 and 5 are a left side view and a rear view as viewed in the direction of the arrow VV in FIG. 4, respectively, illustrating the front half of another embodiment (second embodiment) of the speed sprayer according to the present invention.
[0026]
The basic configuration of the speed sprayer 100 of the illustrated embodiment is substantially the same as that of the speed sprayer 1 of the first embodiment shown in FIGS. 1 and 2 described above, and therefore parts corresponding to the respective parts of the speed sprayer 1 shown in FIG. The same functional parts are denoted by the same reference numerals, and redundant description thereof is omitted. In the following, the rear window 101 of the cabin 20 which is a difference will be mainly described.
[0027]
The rear window 101 of the present embodiment is formed in a horizontally long rectangular shape on the rear wall portion 24 of the cabin 20 so that the driver can see the rear of the speed sprayer 100 at a wide angle. Since a gap S formed between the rear wall portion 24 of the cabin 20 and the chemical liquid tank 25 is formed below the window 101, as indicated by a broken line arrow in FIG. When the air A is sucked in from the lower surface opening 27b side of the recess 27 provided on the front side of the chemical liquid tank 25 and having the front surface and the lower surface opened, the air A passes through the outdoor condenser 52 and is From the gap S formed between the rear wall portion 24 of the cabin 20 and the chemical liquid tank 25 through the front opening 27a in which the widened portion 27c is formed on the peripheral edge of the location 27, the upward direction Widely distributed in the width direction of the Yabin 20 becomes to be released. The released air contacts the glass surface of the rear window 101 so as to rub, and further escapes upward.
[0028]
In this way, air A is released upward in contact with the glass surface of the rear window 101 so that the glass surface of the rear window 101 is wiped away with dirt such as a sprayed medicine adhering thereto. As a result, the driver can clearly see the back of the speed sprayer 100.
[0029]
Further, during the spraying operation, even if the sprayed sprayed medicine tries to adhere to the glass surface of the rear window 101, the sprayed medicine is blown away by the flow of the air A discharged from below, and is not easily attached.
As described above, the two embodiments of the present invention have been described in detail. However, the present invention is not limited to the above-described embodiments, and in the design without departing from the spirit of the invention described in the claims, Various changes can be made.
[0030]
【The invention's effect】
As can be understood from the above description, in the speed sprayer according to the present invention, the outdoor heat exchange unit is disposed in a recess provided on the front side of the chemical liquid tank and having a front surface and a lower surface opened. The outdoor heat exchange unit and the engine cooling system (such as a radiator in the engine room) are clearly separated and do not adversely affect each other. Therefore, it is avoided that the engine cooling performance is reduced. In addition, the outdoor heat exchange unit is disposed in the recess, in other words, in a portion surrounded by the chemical solution tank and the rear wall of the cabin, so that it is not directly exposed to wind and rain or spray chemical solution, In addition, branches of fruit trees do not collide. For this reason, malfunctions are unlikely to occur, and the chemical tank and the rear wall of the cabin also serve as a protective cover, so accidents such as human touching the outdoor heat exchange unit (fan) can be sure. Can be prevented.
[0031]
In addition, the outdoor heat exchange unit is mounted and held on the chassis via the mounting holding member, so that the outdoor heat exchange unit is independent from the chemical tank and the cabin. In addition, it is possible to facilitate maintenance and replacement of the chemical tank.
[0032]
Furthermore, a maintenance hatch that can be arbitrarily opened and closed is provided in a portion of the rear wall of the cabin facing the front opening, so that the maintenance of the outdoor heat exchange unit can be easily performed from the cabin interior side at any time. be able to.
[0033]
In addition to the above, the outdoor heat exchange unit is disposed between the refrigerant compression compressor disposed in the engine room and the indoor heat exchange unit disposed in the cabin. The advantage that the piping system can be configured simply is also obtained.
[0034]
Still further, the rear window of the cabin is prevented from adhering to spray glass and the like, and is attached to the glass surface of the rear window by an air flow discharged upward through an outdoor condenser, adhered dirt, etc. Is wiped out.
[Brief description of the drawings]
FIG. 1 is a left side view showing a front half portion of an embodiment of a speed sprayer according to the present invention.
FIG. 2 is a plan view showing a front half portion of the speed sprayer shown in FIG. 1;
FIG. 3 is an overall left side view showing an example of a conventional speed sprayer.
FIG. 4 is a left side view showing a front half portion of another embodiment of the speed sprayer according to the present invention.
FIG. 5 is a rear view taken along the line VV in FIG. 4;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Speed sprayer 10 ... Chassis 20 ... Cabin 24 ... Rear wall part 25 ... Chemical solution tank 27 ... Recess 27a ... Front opening 27b ... Lower surface opening 25 ... Chemical solution tank 30 ... Engine room 40 ... Blower fan 50 ... Outdoor heat exchange unit ( air conditioner)
52 ... Outdoor condenser 54 ... Outdoor fan 57 ... Mounting and holding member 60 ... Indoor heat exchange unit (air conditioner)
71 ... Opening 72 ... Maintenance hatch 100 ... Speed sprayer 101 ... Rear window S ... Gap A Air for heat exchange

Claims (3)

A cabin (20), a chemical solution tank (25), an engine room (30), and a blower fan (40) are sequentially provided from the front to the rear of the chassis (10), and the air conditioner for the cabin (20) ( 50, 60) Bei example, said the front side of the chemical tank (25), front and lower surface opening (27a, 27b) and recesses (27) are provided, said air-conditioning in the recess (27) in a speed sprayer to the outdoor heat exchange unit of the machine (50) Ru is disposed,
The outdoor heat exchange unit (50) includes an outdoor condenser (52) and an outdoor fan (54). The outdoor fan (54) allows heat exchange air (A) to flow into the recess (27). It distribute | circulates through the clearance gap (S) formed between the said lower surface opening (27b) and the said cabin (20), and the said chemical | medical solution tank (25),
The heat exchange air (A) circulated through the gap (S) further rises and is discharged toward the rear window (101) of the cabin (20) to prevent adhesion of sprayed medicine or the like. A speed sprayer configured as described above . The speed sprayer according to claim 1 , wherein the outdoor heat exchange unit (50) is mounted and held on the chassis (10) via mounting and holding members (57, 57). A maintenance hatch (72) that can be arbitrarily opened and closed is provided in an opening (71) formed in a portion of the rear wall (24) of the cabin (20) facing the tank front opening (27a). The speed sprayer according to claim 1 or 2 , wherein the speed sprayer is provided.

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