JP3236523B2 - Chemical spraying equipment for control - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The chemical spraying apparatus for controlling insects according to the present invention comprises:
Regarding a chemical spraying device for spraying a chemical solution for control on trees such as street trees and fruit trees, the idea is to provide an inexpensive chemical spraying device for spraying that can change the direction and height of spraying the chemical solution in various ways. It is a thing.

[0002]

2. Description of the Related Art In order to prevent pests from adhering to trees such as street trees planted along a street or fruit trees such as mandarin oranges planted in an orchard, it is necessary to periodically or as necessary. Spray the chemical for control accordingly. The spraying of such a chemical for control has conventionally been performed using a chemical spraying device for control. Conventionally used chemical spraying devices for control include a main body comprising a gantry, running means for allowing the main body to travel freely, chemical spraying means for spraying a chemical for control, and Operating means for controlling the means and the chemical spraying means to a desired state. The traveling means includes a traveling member such as a wheel or a crawler, and a drive source such as an engine for driving the traveling member. The chemical spraying means includes a chemical tank for storing a chemical and a spraying mechanism. The spraying mechanism includes a spray nozzle and a blower for spraying the chemical solution, and a pump for sending the chemical solution in the chemical solution tank to the spray nozzle. The spray nozzle and the blower are provided in a spray duct. The blower and the pump are operated by a driving source such as the engine or a generator operated by the driving source.

[0003] In the case of spraying a chemical solution for control on trees using the conventional chemical solution spraying device for control as described above, first, the operating means is appropriately operated to operate the traveling means,
An operator runs the control chemical spraying device to a desired position. Next, by operating the operation means, the pump is operated to send a chemical solution from the inside of the chemical solution tank to the spray nozzle, and the chemical solution is sprayed from the spray nozzle by the wind force generated by the blower. Such a spray nozzle is fixed to one end of the main body. Therefore, the application of the chemical solution can be performed only in one direction with respect to the traveling direction of the main body.

By the way, if a chemical solution can be sprayed over a wide range in the traveling direction of the chemical spraying device for controlling, pests and pests can be efficiently controlled and controlled. For this purpose, for example, Japanese Utility Model Publication No. 5-25728 discloses that a spray duct 2 provided with a spray nozzle 1 can be horizontally rotated by a turntable 3 and sprayed by a hydraulic cylinder 4 as shown in FIG. A technique in which the duct 2 can be tilted vertically is described. According to the technique described in this publication, the spray nozzle 1 can be directed in a desired direction,
The chemical can be sprayed over a wide range in the running direction of the control chemical spraying device. In the control chemical spraying device shown in FIG. 8, reference numeral 5 denotes a wheel constituting a traveling means, reference numeral 6 denotes a blower for spraying a chemical, reference numeral 7 denotes a chemical tank, and reference numeral 8 denotes a liquid in the chemical tank 7. This is a pump for sending a chemical solution to the spray nozzle 1. The drive sources of the engine and the like are omitted.

[0005] However, in the case of the spraying apparatus for chemicals disclosed in the above-mentioned publication, spraying cannot always be performed effectively depending on the positional relationship between the planting place of the above-mentioned street tree or fruit tree and the traveling path of the chemicals spraying apparatus. Cases arise. That is, when the tree to which the chemical solution is to be sprayed is planted at a position higher than the traveling path on which the control chemical spraying device travels as shown in FIG. 1 or FIG. In such a chemical spraying device for controlling, a chemical spray cannot be reliably sprayed on the entire tree, for example, a blind spot that cannot be sprayed or a chemical solution does not reach the upper part of the tree. Further, when the spray duct 2 is largely tilted upward, the sprayed chemical solution may fall down toward the worker, which is dangerous.

In order to solve such inconveniences, the present applicant has previously filed an application relating to a chemical spraying apparatus for control as shown in FIGS. 9 to 17 (Japanese Patent Application No. 6-340891). As shown in FIGS. 9 to 10, the spraying device for controlling chemicals according to the prior invention includes a main body 10 having a base 9 and the like, a traveling unit 11 that allows the main body 10 to travel freely, and a chemical for controlling. And a control means 13 for controlling the traveling means 11 and the chemical solution spraying means 12 to desired states. The spraying device for controlling chemicals according to the present invention employs a pair of crawlers 14 as the running means 11 and is provided with an engine 15 for driving the pair of crawlers 14. This engine 15 is the drive source described in the claims.

The chemical spraying means 12 includes a chemical tank 18 for storing the chemical and a spray nozzle 16 for jetting the chemical.
And a spraying mechanism 1 having a blower 17 and a pump 19 for sending a chemical solution in a chemical solution tank 18 to a spraying nozzle 16.
2a. The spray nozzle 16 and the blower 1
7 is provided in the distribution duct 20. The above pump 1
9 is driven by the engine 15. This pump 1
The flow rate adjustment of 9 is performed by a motor (not shown).
This motor and a motor 21 for driving a hydraulic cylinder 33 to be described later are a generator 22 driven by the engine 15.
Operated by

The pump 19 has one end of a supply hose 23, one end of a return hose 24, and one end of an ejection hose 25. Of these hoses 23, 24, 25, the supply hose 23 has the other end connected to the chemical solution tank 18, and sends out the chemical solution in the chemical solution tank 18 toward the pump 19. The other end of the return hose 24 also communicates with the chemical tank 18, and returns the overflowed chemical on the pump 19 side into the chemical tank 18. Further, the ejection hose 25 has the other end communicating with the spray nozzle 16, and flows the chemical solution sent to the pump 19 through the supply hose 23 toward the spray nozzle 16.

Further, the running means 11 and the chemical spraying means 12 are appropriately operated to a desired state by operating means 13. That is, the operation means 13 is configured by fixing the operation panel to the handle 26 provided on the main body 10 via the bracket as shown in FIGS. The operation panel includes levers 27, 28, 29, a push button 30, and a switch 31. The lever 27 controls the rotation speed of the engine 15. The lever 28 controls the rotation speed and the like of an electric motor (not shown) that operates the pump 19, and adjusts the amount of the liquid medicine to be sprayed. The lever 29 controls the amount of expansion and contraction of a hydraulic cylinder 33 that constitutes a lifting mechanism 32 (see FIGS. 11 to 14) described later. Further, the push button 30
Is operated when the engine 15 is stopped. The switch 31 is a four-way panel switch. The first electric motor 3 constituting a tilting / rotating mechanism 34 (see FIGS. 11 to 14) described later by pressing an up-down arrow surface in FIG.
5 can be rotated forward and backward, and a second electric motor 36 described later can be freely rotated forward and backward by pressing the left and right arrow surfaces in FIG. Note that one of the upper and lower arrow surfaces and the left and right arrow surfaces can be simultaneously operated.

Further, in the structure according to the prior invention,
A tilting / rotating mechanism 34 for turning the spray nozzle 16 in a desired direction and an elevating mechanism 32 for raising and lowering the spray nozzle 16 are provided. Of these mechanisms 32 and 34, the lifting mechanism 32 will be described first. FIGS. 11 to 12
As shown in the figure, a column 37 having a rectangular cross section is erected on the upper surface of the central portion of the base 9. And on this pillar 37,
A support pipe 38 having the same cross section as the cross section of the column 37 is slidably fitted. The support pipe 38, together with the support table 43 and the like described below, constitute a lifting member described in the claims. Further, a part of the base 9 has a hydraulic cylinder 3 hydraulically driven by an electric motor 21.
3 (the lower end in FIGS. 11 and 12).
A hydraulic pump and an oil tank (not shown) are provided to supply and discharge pressure oil to and from the hydraulic cylinder 33.

The rod 33a of the hydraulic cylinder 33
A link mechanism 39 is provided between the front end portion (the upper end portion in FIGS. 11 and 12) and the support pipe 38.
Thereby, the support pipe 38 can be moved up and down along the column 37. That is, one end (the right end in FIGS. 11 and 12) of the first link arm 40 constituting the link mechanism 39 is connected to the tip of the rod 33a of the hydraulic cylinder 33. Further, in the axial direction of the support pipe 38 (FIGS. 11 and 12).
One end of the second link arm 41 is connected to the intermediate portion, and the other end of the second link arm 41 is pivotally supported by the other end of the first link arm 40. The intermediate portion of the first link arm 40 is pivotally supported on the upper end of a support member 42 erected on the base 9. With the above-described configuration, the support base 43 fixed to the tip of the support pipe 38 and provided with the spray duct 20 on the upper surface thereof is mounted on the hydraulic cylinder 3
By the operation of 3, it is possible to move up and down in a horizontal posture.

Next, the tilt / rotation mechanism 34 will be described. A spray duct 20 incorporating the spray nozzle 16 and the blower 17 is provided above the support base 43. The dusting duct 20 can be freely tilted in the vertical direction and rotated in the horizontal direction by the first electric motor 35 and the second electric motor 36 constituting the tilting / rotating mechanism 34, respectively. That is, as shown in FIGS.
Above the duct support 44 fixed above the vertical axis 45
A turntable 46 that rotates around the center is provided. A pair of brackets 47 are erected above both sides of the turntable 46 in the diameter direction.
A horizontal shaft 48 protruding from both ends of one end of the spray duct 20 is mounted on the shaft. A large gear 49 is fixed to one of the pair of horizontal shafts 48, and a small gear 50 fixed to the output shaft of the first electric motor 35 is engaged with the large gear 49. I have. Therefore, the first electric motor 3
By rotating the gear 5 forward or reverse, each gear 5
The spray duct 20 can be tilted up and down about the horizontal axis 48 via the 0 and 49. The bracket 47 is provided with a limit switch 51, which regulates the tilting range of the spray duct 20.

Further, in the middle part of the vertical axis 45, FIG.
As shown in FIG. 15, another large gear 52 is provided. or,
A second electric motor 36 is provided inside the duct support 44,
A small gear 53 fixed to the output shaft of the second electric motor 36 is meshed with the large gear 52. Therefore, by operating the second electric motor 36, each of these gears 52,
The turntable 46 rotates via 53. Note that a limit switch 54 is provided inside the duct support 44, and the limit switch 54 regulates the rotation range of the turntable 46. As described above, the means for rotating the spray duct 20 by the second electric motor 36 via the turntable 46 and the means for tilting the spray duct 20 by the first electric motor 35 as described above are a tilting / rotating mechanism. Make 34.

Incidentally, the tilting, turning, and raising and lowering of the spray duct 20 may cause the chemical spraying device for control to lose its balance.
Therefore, in the control chemical spraying device according to the prior invention,
As shown in the drawing, a starting portion 61 formed by collecting relatively heavy members such as the pump 19 and the engine 15 and a chemical solution tank 18 are arranged on the base 9 at intervals, and these starting portions are arranged. The elevating mechanism 32 and the like are disposed between the portion 61 and the chemical solution tank 18. The activation unit 61 is covered with a cover 61a having high rigidity. By taking into account the arrangement positions of the constituent members as described above, the balance of the chemical spraying device for control is stabilized and the device is made compact.

When spraying a chemical solution for control on a tree by using the chemical solution spraying device according to the present invention configured as described above, the engine 15 is started and the operator holds the handle 26 to spray the chemical solution for control. Run the device. At this time, the operating speed of the engine 15 is adjusted by operating the lever 27 constituting the operating means 13 as appropriate, and the vehicle is driven at a desired speed. After moving to the target tree in this way, the spraying operation is started. That is, the hydraulic pump is operated by operating the electric motor 21 for driving the hydraulic cylinder 33, and the rod 3 of the hydraulic cylinder 33 is operated.
3a is expanded and contracted. Accordingly, the support pipe 38 moves up and down via the link mechanism 39, so that the spray duct 20 can be positioned at a desired height. For example, if the rod 33a of the hydraulic cylinder 33 is extended, as shown by a solid line in FIG. 9 or as shown in FIG.
0 can be lowered to a lower position. Conversely, if the rod 33a of the hydraulic cylinder 33 is retracted, the spray duct 20 can be raised to a higher position as shown by a chain line in FIG. 9 or as shown in FIG.

Further, by operating the switch 31, the first and second electric motors 35 and 36 are respectively rotated by desired amounts in desired directions, and the spray duct 20 is directed in desired directions. That is, as shown by a solid line or a chain line in FIGS. As a result, the spray nozzle 16 of the spray duct 20 faces the tree to which the chemical solution is to be sprayed, so that the pump 19 is driven to send the chemical solution in the chemical solution tank 18 toward the spray nozzle 16. Further, the blower 17 is driven. This allows
The chemical solution ejected from the spray nozzle 16 is sprayed toward the tree by the wind force sent from the blower 17. When you have finished spraying one tree,
Spray work is performed in the same procedure.

The chemical spraying device for control according to the prior invention is constructed and operated as described above, so that the whole chemical spraying device can have a well-balanced and compact structure, and can efficiently perform the control work. Can be. or,
When the spraying operation of the chemical solution is performed on the tree which is considerably high, the spray duct 20 can be lifted and the chemical solution can be sprayed without tilting the spray duct 20 while keeping the spray duct 20 horizontal. Therefore, the spraying of the chemical solution can be performed reliably, and the spraying of the sprayed chemical solution onto the worker or the like can be suppressed to a small extent, so that the spraying operation can be performed safely and reliably. In addition, the support pipe 36 supporting the distribution duct 20 can be moved up and down without being twisted due to the rectangular cross section of the support column 37 and the support pipe 36. For this reason,
The dispersion duct 20 may be in a poor posture or the link mechanism 39
Can be prevented from malfunctioning.

[0018]

Although the control chemical spraying apparatus according to the prior invention has various excellent effects as described above, it has been found that there is room for further improvement. That is, in the structure according to the preceding invention,
Since the hydraulic cylinder 33 is employed as a structure for raising and lowering the spray nozzle 16, a hydraulic pump for supplying and discharging pressurized oil to and from the hydraulic cylinder 33 and an oil tank for storing oil are required. Therefore, the number of parts increases by that much, and the labor and the manufacturing cost of the assembling work increase. Since the chemical spraying device for control is originally heavy, it is preferable to reduce the size and weight as much as possible.
It is also desirable to reduce the overall price as much as possible. The control chemical spraying device of the present invention has been invented in view of such circumstances, and it is intended to reduce the number of parts and to reduce the size, weight, and cost while maintaining the effects of the above-described prior invention. is there.

[0019]

According to the present invention, there is provided an apparatus for spraying a chemical solution for controlling a body, similar to the structure according to the above-mentioned invention, in which a main body is provided.
There are provided a traveling means for allowing the main body to travel freely, a chemical spraying means for spraying a chemical for control, and an operating means for controlling these running means and the chemical spraying to a desired state. . Among these means, the traveling means includes a traveling member such as a crawler and a drive source such as an engine for driving the traveling member. Also, the chemical spraying means, a chemical tank for storing the chemical, a spray nozzle having a spray nozzle for ejecting the chemical and a pump for sending the chemical in the chemical tank to the spray nozzle,
A lifting mechanism for raising and lowering the spraying mechanism. The chemical spraying mechanism is preferably provided with a blower so that the chemical sprayed from the spray nozzle can be surely sprayed.

[0020] In particular, in the control chemical spraying apparatus of the present invention, the elevating mechanism is made operable by the liquid pressure of the chemical pumped by the pump.

Further, as described in claim 2, the housing portion is provided in the main body portion for housing at least a starting portion including a driving source constituting the traveling means and a pump and a generator constituting the chemical liquid spraying means. At the same time, if an elevating mechanism is provided on the upper surface of the storage section, both compactness and more stable balance can be ensured.

[0022]

The operation when the chemical liquid spraying apparatus of the present invention configured as described above is used to spray a chemical liquid on a tree is the same as that of the above-described chemical liquid spraying apparatus according to the preceding invention.
In particular, in the chemical spraying apparatus for control of the present invention, the number of parts and the manufacturing cost can be reduced while keeping the effects of the prior invention such as compactness, safety, and efficient control work. That is, since the operation of the elevating mechanism is performed based on the liquid pressure of the chemical solution, a hydraulic pump or an oil tank is not required unlike the structure according to the above-mentioned invention. For this reason, the number of parts can be reduced, and the manufacturing can be facilitated to reduce the cost. Moreover, since the number of parts can be reduced, the size and weight of the entire apparatus can be reduced.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the first embodiment of the present invention will be described.
An example will be described with reference to FIGS. In addition, the chemical spraying apparatus for control according to the present invention has a feature in the elevating mechanism, and the other parts are the same as the structure according to the above-described prior invention. Therefore, in the structure of the first example and the structure of a second example described later, the same reference numerals are given to the same parts as the structure according to the above-described invention, and the overlapping description will be omitted or simplified. The following description focuses on the characteristic portions of the above.

The lifting mechanism 55, which is a feature of the present invention, comprises:
The pump 19 can be moved up and down by the liquid pressure of the chemical solution pumped by the pump 19. That is, the lifting mechanism 55 in the present example
Is provided with a hydraulic cylinder 56 that can be expanded and contracted by the liquid pressure of the chemical liquid pumped by the pump 19, instead of the hydraulic cylinder 33 (see FIGS. 9 to 12) in the chemical liquid spraying device for controlling according to the above-mentioned invention. I have. Therefore, a hydraulic pump and an oil tank for driving the hydraulic cylinder 33 can be omitted. Other configurations of the lifting mechanism 55 are the same as those of the above-described prior invention. That is, as shown in FIGS. 1 to 4 or FIGS.
A column 37 having a rectangular cross section is erected, and the column 37
A support pipe 38 having the same cross section as the cross section of the column 37 is slidably fitted. Further, a base end (the lower end in FIGS. 3 and 4) of the hydraulic cylinder 56 is pivotally supported on a part of the base 9, and a distal end (see FIGS. 3 and 4) of the rod 56a of the hydraulic cylinder 56. A link mechanism 39 is provided between the upper end of the support pipe 38 and the support pipe 38.

However, instead of the hydraulic cylinder 33, a hydraulic cylinder 56 which can be extended and contracted by a chemical is provided, so that one end of the supply hose 23 is connected to the suction port of the valve device 57, and one end of the ejection hose 25 is connected to the valve. Each is connected to a first outlet of the device 57. A second outlet of the valve device 57 is connected to a hose 58 connected to the inlet of the hydraulic cylinder 56.
Connect. Examples of the valve device 57 include a rotary valve and the like.
A conventionally known device can be adopted. Also, this valve device 5
The control of 7 is performed by a switch or the like provided on the operation means 13 (see FIGS. 16 and 17). The operation means in this example is the same as that shown in FIGS.
Regarding the lever 29, different from the structure of the previous invention, the switching of the valve device 57 and the adjustment of the amount of the chemical solution sent to the hydraulic cylinder 56 are performed. Other configurations such as the tilting / rotating mechanism 34 and the like are the same as those of the control chemical spraying device according to the above-mentioned prior invention. It is to be noted that the valve device 57, the hose 58, and other members through which the chemical solution flows are provided with measures such as coating a material that is not affected by the chemical solution. Also, in order to prevent the chemical solution from leaking to the outside, sealing measures such as sealing required portions are taken.

The action of spraying a chemical solution on a tree using the chemical spraying device for control according to the present embodiment configured as described above is as follows.
It is the same as the above-mentioned chemical spraying device for controlling according to the preceding invention. That is, after traveling to the target position by the traveling means 11, the elevating mechanism 5 according to the height of the tree to which the chemical is to be sprayed.
5 is operated, and the spray duct 2 is switched between the solid line in FIG. 1 or the state shown in FIG. 3 and the chain line in FIG. 1 or the state shown in FIG.
Move 0 to the desired position. Further, the tilting / rotating mechanism 34 is operated according to the direction of the tree, and the spray duct 20 is directed in a desired direction. When the height position and the direction of the spray duct 20 are set as desired, the valve device 57
The first outlet is closed and the second outlet leading to the hydraulic cylinder 56 is open. If the height position and the direction of the spray duct 20 are determined as desired, contrary to the above-described case,
The first outlet opening to the spray nozzle 16 is opened and the second outlet is closed. This operation is performed by the operation means 13. In particular, in the chemical spraying device for control according to the present invention, it is possible to reduce the number of parts and reduce the manufacturing cost while keeping the effect of the earlier invention that compact and excellent in safety and that the control work can be performed efficiently. it can. That is, since the elevating mechanism 55 is operated based on the liquid pressure of the chemical solution, a hydraulic pump or the like is not required unlike the structure according to the above-mentioned invention. For this reason, the number of parts can be reduced, and the manufacturing can be facilitated and the cost can be reduced. Moreover,
The size and weight of the entire device can be reduced.

That is, the whole chemical spraying device can be formed into a well-balanced and compact structure.
The operating means 13 includes an engine 19, first and second electric motors 3
Since it is possible to intensively operate 5, 36 and the like at any time, the chemical solution spraying operation can be performed efficiently. Further, the spray duct 20 provided with the spray nozzle 16 can be raised and lowered to an optimum height, so that the danger of the sprayed chemical liquid dropping to the operator can be minimized, and the spraying operation can be performed safely and reliably. Become. In addition, by making the cross-sectional shape of the support pipe 38 and the support column 37 rectangular, it is possible to prevent the support pipe 38 from being twisted and to smoothly move up and down. The above effects are also provided in the structure according to the above-mentioned invention, but in the chemical spraying device for controlling of the present invention, the members such as the hydraulic pump can be omitted, so that the production becomes easier by that much, The size and weight of the entire apparatus can be reduced, and the manufacturing cost can be reduced.

Next, FIGS. 5 to 7 show a second embodiment of the present invention. In the case of this example, a link mechanism 59 having a structure as shown in FIGS. That is, the link mechanism 5
Reference numeral 9 denotes both ends of the X-shaped link member 60 (FIGS. 6 to 6) formed by pivotally supporting the intermediate portions of the pair of arms 62a and 62b.
7 at the upper and lower ends) of the support table 43 and the activation unit 61.
Are slidably engaged with guide rails (not shown) formed on the upper surface of the cover 61a that covers the cover 61a. Such a link member 60 and a guide rail are provided at both ends in the width direction of the support base 43 (the front-back direction in FIG. 6 and the left-right direction in FIG. 7). Further, one arm portion 60a of at least one link member 60 has a base end (lower end in FIG. 6) at a distal end (upper end in FIG. 6) of a rod 56a of a hydraulic cylinder 56 pivotally supported by the cover 61a. ) Is fixed.

Therefore, the rod 5 of the hydraulic cylinder 56
6A, the angle θ between the pair of arms 62a and 62b forming the link member 60 is displaced in a direction in which the angle θ is reduced, as shown in FIG. The support base 43 provided with the spray duct 20 is raised.
Conversely, when the rod 56a of the hydraulic cylinder 56 is retracted, as shown in FIG.
The support base 43 is displaced in a direction in which the angle θ between the pair of arm portions 62a and 62b forming the link member 60 increases.
Descends. The cover 61a is a storage section described in the claims, and in the case of this example, an elevating mechanism 55a is provided on an upper surface of the cover 61a which is an upper surface of the storage section. Therefore, the spraying device of the present embodiment is more compact. Other configurations and operations are the same as those of the above-described first example.

In each of the first and second examples described above, the crawler 14 is used as the traveling means as shown, but wheels may be used instead. Also, in order to know the remaining amount of the chemical in the chemical tank 18,
A liquid level meter is provided in the chemical liquid tank 18 and the chemical liquid tank 18 is provided.
When the amount of the chemical in the inside is reduced to a preset amount, the operator can be notified that the chemical should be replenished. Further, the amount of the chemical liquid supplied to and discharged from the hydraulic cylinder 56 is
It is also possible to supply and discharge a fixed amount step by step, and to raise and lower the spray duct 20 step by step by a predetermined amount. For example, when the above liquid level meter is provided, the control unit reads the amount of change caused by the increase and decrease of the chemical solution of the liquid level meter, and temporarily stops the operation of the valve device 57 when the amount of change becomes a preset value. It can be configured by providing a unit (MPU). Further, a measuring device for measuring the distance to the tree to which the chemical solution is to be sprayed and the height of the tree, a calculating device for obtaining the height and direction of the spray duct 20 according to the detection value of the measuring device, The hydraulic cylinder 56 and the first and second electric motors 35, 3 constituting the elevating mechanisms 55, 55a and the tilting / rotating mechanism 34 based on the height and direction obtained by the heaters.
It is also possible to provide a controller that activates 6 or the like by a desired amount, so that the application of the chemical liquid can be performed more reliably. Such a configuration can be obtained by using a conventionally known optical distance measuring device and a servo control mechanism.

In each of the first and second examples, an example is shown in which the lifting mechanisms 55, 55a are raised and lowered via the link mechanisms 39, 59. A link mechanism 39 such that the support pipe 38 can be directly moved up and down by the 56, or the support pipe 38 can be moved up and down by a rack fixed to the rod 56a of the hydraulic cylinder 56 and a pinion provided on the support pipe 38. , 59, other configurations can be employed. Further, in order to prevent the support pipe 38 from being twisted, the cross section of the support pipe 38 and the column 37 may be made non-circular. In short, the feature of the present invention resides in that the elevating mechanism is operated using a chemical solution, and various configurations can be adopted for details. Further, the claims are provided with reference numerals for facilitating correspondence with the drawings, but are not intended to limit the scope of the claims.

[0032]

As described above, the chemical spraying apparatus of the present invention is constructed and operates as described above. Therefore, it is possible to reduce the number of parts while maintaining the above-mentioned effects of the prior invention, thereby facilitating the production and reducing the production cost. Reduction can be achieved. That is,
The whole chemical spraying device can be formed into a well-balanced and compact structure, and the operating means can intensively operate the engine and the pump at any time. Further, the spray duct can be moved up and down to an optimum height by the elevating mechanism, so that the spraying operation can be performed safely and reliably without causing any harm to the workers and the like. Further, when the tilting / turning mechanism is provided, the spraying operation can be performed more reliably. In addition to these effects, the control chemical spraying device of the present invention operates the elevating mechanism based on the liquid pressure of the chemical solution, so that the number of parts can be reduced, the manufacture becomes easy, and the size and weight of the entire device can be reduced. And production cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view showing a first example of an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a rear view showing the lifting mechanism in a lowered state.

FIG. 4 shows a state in which the lifting mechanism is also raised, and FIG.
Rear view similar to.

FIG. 5 is a side view showing a second example of the embodiment of the present invention in a state where the elevating mechanism is lowered.

FIG. 6 is a side view showing a state where the lifting mechanism is raised.

FIG. 7 is a front view showing the state of use.

FIG. 8 is a side view showing a conventional structure.

FIG. 9 is a side view showing the structure of the first invention.

FIG. 10 is a plan view of the same.

FIG. 11 is a rear view showing the lifting mechanism in a lowered state.

FIG. 12 is a rear view similar to FIG. 11, showing a state in which the lifting mechanism is raised.

FIG. 13 is an enlarged view of a spray duct portion showing an operation state of a tilting / rotating mechanism.

FIG. 14 is a partial vertical cross-sectional view showing the configuration of the tilting / rotating mechanism in an enlarged manner.

FIG. 15 is a plan view of the same.

FIG. 16 is a plan view showing operation means.

FIG. 17 is a side view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Main body part 11 Running means 12 Chemical spraying means 13 Operating means 14 Crawler 15 Engine 16 Spray nozzle 18 Chemical liquid tank 19 Pump 20 Spray duct 21 Electric motor 22 Generator 34 Tilt / rotation mechanism 35 First electric motor 36 Second electric motor 37 Support column 38 Support pipe 39 Link mechanism 55, 55a Elevating mechanism 56 Hydraulic cylinder 57 Valve device 58 Link mechanism 59 Activator 61a Cover

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B05B 17/00 A01M 7/00

Claims (2)

(57) [Claims] 1. The main body (10) includes a main body (10).
(11), a chemical spraying means (12) for spraying a chemical for control, and these running means (11) and the chemical spraying means (12) are controlled to desired states. The chemical liquid spraying means (12) is provided with a chemical liquid tank (18) for storing a chemical liquid, a spray nozzle (16) for jetting a chemical liquid, and the chemical liquid tank (18). Spray nozzle with this spray nozzle (1
A chemical liquid for controlling, comprising: a spraying mechanism (12a) having a pump (19) for feeding the spraying liquid to the spraying nozzle (6); and a lifting mechanism (55) (55a) for raising and lowering the spraying nozzle (16). In the spraying apparatus, the lifting mechanism (55) (55a) is connected to the pump (1).
9. A spraying device for chemicals for control, characterized in that the device is operable by the liquid pressure of the chemicals pumped by 9). 2. A pump (19) and a generator (22) constituting at least a driving source (15) constituting a traveling means (11) and a chemical solution spraying means (12) in a main body (10).
The chemical liquid for controlling according to claim 1, further comprising a storage part (61a) for storing an activation part (61) including: and a lifting mechanism (55) (55a) provided on an upper surface of the storage part (61a). Spraying device.