JPH0523256Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention relates to a chemical spraying device that sprays chemical solutions in fields. Specifically, the pump is installed on the ground, and the worker carries only the backpack-type blower device on his or her back. Then,
This invention relates to a chemical liquid spraying device that uses wind from a backpack-type blower to disperse chemical liquid sent from a pump.

[Conventional technology]

When spraying pest control chemicals on hard leaves such as tangerine, it is important to efficiently spray the chemicals on the underside of the leaves in order to improve work efficiency. In such a conventional chemical spraying device, the wind from the backpack-type blower is used to shake the leaves, and the jet head is inserted into the back side of the leaf to spray the chemical onto the back side of the leaf.

In the chemical spraying devices disclosed in Japanese Unexamined Patent Publication No. 61-473, Japanese Utility Model Publication No. 57-43851, and Japanese Utility Model Publication No. 59-25494, the pump is installed on the ground, and the operator uses a backpack-style blower without a pump installed. By carrying the device on your back,
Efforts are being made to reduce worker labor. In other words, the pump is installed near the chemical tank, the pump and the backpack-type blower are connected with a hose, and the operator pulls and tightens the hose to pump out the chemical liquid that is force-fed through the hose. It is sprayed from the nozzle of the jet head.

[The problem that the idea attempts to solve]

With conventional chemical spraying equipment, workers operate a hose that extends directly from the pump installation location to the worker's location, so the farther from the pump installation location, the longer the hose that the worker must operate becomes. As the operating force increases, it also becomes more complicated and labor intensive.

Furthermore, when automatically winding up a hose, the winding engine needs to generate a large output in order to wind up a long hose, making it large and expensive.

An object of the present invention is to provide a chemical spraying device that allows an operator to easily operate a hose even when the chemical spraying location is far from the pump installation location.

The object of the invention of claim 2 is to provide a chemical solution spraying device that requires only a small-sized prime mover even when automatically winding up a hose, and which can eliminate the need for an operator to go to the winding location each time. It is.

The object of the third aspect of the invention is to provide a chemical liquid spraying device that does not require a pulling force by an operator when drawing out a hose.

[Means to solve the problem]

This invention will be explained using reference numerals in the drawings that correspond to the embodiments.

The chemical spraying device according to the first aspect includes the following components (a) to (e).

(a) A pump 28 disposed at a first location A and pumping the chemical solution to the first hose 12. (b) A pump 28 disposed at a second location B distant from the first location A and connected to the first hose 12. Hose intermediate winding device 1 that can freely wind up the second hose 16
4 (c) A backpack-type blower device 20 carried on the back of the worker 18 (d) A blower head 22 that guides the wind from the backpack-type blower device 20 and is held by the worker 18 (e) A blower head 22 provided at the tip of the blower head 22 A nozzle 8 that spouts the chemical liquid sent from the hose 16 of No. 2.
6. In the chemical spraying device of claim 2, the winding of the second hose 16 by the intermediate hose winding device 14 is further controlled by a remote controller 94 carried by the operator 18.
controlled remotely.

In the chemical spraying device according to the third aspect, the intermediate hose winding device 14 can freely unwind the second hose 16, and the unwinding of the second hose 16 by the intermediate hose winding device 14 is remotely controlled by the remote controller 94. Ru.

[Effect]

In the invention of claim 1, the hose intermediate winding device 14 is located at a first location A where the pump 28 is installed.
It is installed at a second location B, which is an intermediate point between the spraying location and the spraying location where the worker 18 sprays the chemical solution. The first hose 12 connects the pump 28 and the intermediate hose winding device 14 and guides the chemical solution from the pump 28 to the intermediate hose winding device 14 . Second hose 16
connects the hose intermediate winding device 14 and the spraying location, and directs the chemical solution from the first hose 12 to the nozzle 86.
lead to. The spray of chemical liquid from the nozzle 86 is carried by the wind from the backpack-type blower device 20 and is emitted to a predetermined spray target.

In the invention of claim 2, when the distance between the worker 18 and the second location B is shortened, or when the spraying of the chemical solution is finished, the worker 18 can shorten the second hose 16. , the remote controller 94 is operated to cause the intermediate hose winding device 14 to wind up the second hose 16 .

In the invention of claim 3, when the distance between the worker 18 and the second location B increases and the second hose 16 is to be unwound from the intermediate hose winding device 14, the worker 18 is operated to let out the second hose 16 by the hose intermediate winding device 14.

〔Example〕

This invention will be described below with reference to embodiments shown in the drawings.

FIGS. 1 and 2 show the overall situation of spraying a chemical solution using a chemical solution spraying device in a vertical plane and in a plane from above, respectively. Pump device 10
is installed at a first location A near the chemical tank 34 (FIG. 3), and pumps the chemical liquid to the first hose 12.
The intermediate hose winding device 14 is installed at a second location B apart from the first location A and close to the spraying location, and is connected to the pump device 10 via the first hose 12 and connected to the second hose 16. It is possible to wind up and unwind freely. The worker 18 carries the backpack-type blower 20 on his back, grasps the jet head 22 in one hand, and directs the tip of the jet head 22 toward a tree 24, such as a tangerine, to spray the chemical solution onto the tree 24.
As shown in FIG. 2, the plurality of trees 24 are
forming a row of trees 26, and the second location B is the row of trees 26;
The tree line 26 is set between 1 and 2, and is sequentially moved according to the row of trees 26 to which the chemical solution is to be sprayed.

The pump device 10 pumps the inhaled chemical solution to the first hose 12, the hose intermediate winding device 14 relays the first hose 12 and the second hose 16,
The chemical liquid is sent to the jet head 22 via the second hose 16. In this way, the chemical solution is carried by the wind from the backpack-type blower 20 and is emitted toward the tree 24 from the tip of the jet head 22 .

FIG. 3 is a structural diagram of the pump device 10. The pump 28 is driven by the engine 30 and sucks the chemical liquid from the chemical liquid tank 34 through the suction hose 32.
The chemical solution is force-fed to the first hose 12. The hose winder 36 is connected to the engine 30 via a belt 38.
Rotational power is transmitted from the first hose 12, so that the first hose 12 can be freely wound. The receiver 40 is a transmitter 92
(FIG. 7) receives a remote control command sent by radio waves, and connects/disconnects rotation transmission from the engine 30 to the pump 28 and hose winder 36 via a clutch or the like.

FIG. 4 is a structural diagram of the hose intermediate winding device 14. The two-stroke engine 42 with starter motor is
It is operated by being supplied with fuel in the fuel tank 44,
A reduction gear 48 is rotated via a centrifugal clutch 46. The rotating shaft 50 is rotatably supported, and reduction gears 52 and 54 are fixed to rotate integrally with each other.The small diameter reduction gear 52 meshes with the reduction gear 48, and the large diameter reduction gear 54 meshes with the winding drive gear 56. They are interlocked.

FIG. 5 shows the connection relationship between the reduction gear 54, the winding drive gear 56, and the feeding drive gear 58. The feeding drive gear 58 receives rotation from the reduction gear 54 via the winding drive gear 56,
It rotates in the same direction as the reduction gear 54.

FIG. 6 is a side view of the hose intermediate winding device 14. The driven pulley 64 rotates integrally with a hose reel 66 that winds up the second hose 16, and rotation is transmitted from the winding pulley 60 and the feeding pulley 62 via belts 68 and 70, respectively.

Returning to FIG. 4, rotation is transmitted to the winding pulley 60 and the feeding pulley 62 from the winding drive gear 56 and the feeding drive gear 58 via the electromagnetic clutch 71. Therefore, the electromagnetic clutch 7 of the winding pulley 60 and the feeding pulley 62
When 1 is connected and disconnected, the take-up pulley 6
The zero and feeding pulleys 62 are in a rotating and stopped state, respectively, and the hose reel 66 winds up the second hose 16. In addition, the winding pulley 6
0 and the electromagnetic clutch 71 of the feeding pulley 62
are disconnected and connected, respectively, the take-up pulley 60
The feeding pulley 62 is stopped and rotated, respectively, and the hose reel 66 feeds out the second hose 16. The receiver 72 is the transmitter 9
The second hose 16 is wound onto the hose reel 66 by controlling the connection and disconnection of the electromagnetic clutches 71 of the winding pulley 60 and the feeding pulley 62 by remote control commands sent by radio waves from the second hose 16 (FIG. 7). and let out from the hose reel 66.

7 and 8 are a side view and a plan view of the backpack-type blower device 20. A blower 75 is mounted on the lower horizontal extension of the backpack frame 74, and a two-stroke engine 76 is supplied with fuel from a fuel tank 78 to drive the blower 75. The throttle lever 77 is disposed at the lower part of one side of the backpack frame 74 so that the operator 18 can manually operate the backpack blower 20 while carrying the backpack blower 20 on his/her back. Control the degree. A bellows pipe 80 and a nozzle head 22 are connected in series to the outlet of the blower 75 , and a nozzle 86 is disposed inside the tip of the nozzle head 22 and connected to the tip of the second hose 16 via a connecting hose 88 . pair of bands 90
are hung at predetermined positions above and below the vertical part of the backpack frame 74 at the upper and lower ends, and passed over the shoulders of the worker 18. The transmitter 92 is the receiver 4 of FIGS. 3 and 4.
Send remote control commands via radio waves to 0,72. The wind generated by the blower 75 is guided to the tip of the jet head 22 via the bellows tube 80 and the jet head 22, and the chemical liquid from the second hose 16 is sent to the nozzle 86 through the connecting hose 88, and the nozzle It is ejected from 86. As a result, the spray of chemical liquid from the nozzle 86 is carried by the wind from the blower 75 and dispersed.

FIG. 9 is a structural diagram of the remote control switch 94. The pipe joint 96 connects the second hose 1 at both ends.
6 and the base end of the connecting hose 88 are attached, and the chemical solution from the second hose 16 is connected to the connecting hose 8.
Leads to 8. The flange 98 is integrally formed on the outer periphery of the pipe fitting 96, and the housing 100 surrounds the outer range of the pipe fitting 96 including the flange 96, and is freely displaceable in the direction of the centerline of the pipe fitting 96. Compression coil springs 102 and 104 are compressed between the flange 98 and the end wall of the housing 100, and
The housing 100 is held in a neutral position centered at 8. The fixed contact 106 is fixed to the periphery of the flange 98, and the movable contacts 108, 110 are fixed to the end wall of the housing 100 at positions facing the fixed contact 106.
12 to a transmitter 92. The movable contacts 108, 110 are moved by the operator 18 by moving the housing 100 in the direction of the center line of the pipe joint 96 against the compression coil springs 102, 104.
selectively connects to fixed contact 106, thereby changing the switch position of remote control switch 94. For example, the fixed contact 106 is the movable contact 108,
110, the second hose 16 is connected to the hose reel 6 of the hose intermediate winding device 14.
This is the position where a command to wind up the second hose 16 and a command to unwind the second hose 16 from the hose intermediate winding device 14 are generated.

When the worker 18 moves away from the hose intermediate winding device 14, the worker 18 operates the remote control switch 94 to move the hose intermediate winding device 1 away from the hose intermediate winding device 14.
A command to unwind the second hose 16 from the hose reel 66 of No. 4 is generated, and a control signal based on this command is sent to the hose intermediate winding device 14 by radio waves from the transmitter 92.
is sent to the receiver 72 of. As a result, the hose reel 66 rotates in the direction in which the second hose 16 is fed out, and the amount of the second hose 16 fed out from the intermediate hose winding device 14 increases. Further, when the operator 18 moves in a direction approaching the intermediate hose retractor 14, the operator 18 operates the remote control switch 94 to attach the second hose to the hose reel 66 of the intermediate hose retractor 14. 16 is generated, and a control signal based on this command is sent to the transmitter 9.
2 to the receiver 72 of the radio hose intermediate winding device 14
sent to. As a result, the hose reel 66 rotates in the direction in which the second hose 16 is fed out, and the amount of the second hose 16 fed out from the intermediate hose winding device 14 is reduced. In the hose intermediate winding device 14, a two-stroke engine 42 with a starter motor is installed.
is normally stopped, and when a remote control command is received from the transmitter 92, the starter motor is driven and automatically started, and after a predetermined period of time has elapsed after the remote control command is executed, the ignition current is cut off. automatically stops. The transmitter 92 may also provide a switch position for remotely controlling the stopping of the pump 28 (by disengaging the clutch) and the winding of the hose winder 36 in the pump system 10. As a result, when the chemical liquid spraying work is completed, the operator 18 stops the pump 28 by remote control from the remote control switch 94 and sprays the chemical liquid by the pump 28 without going to the location of the pump device 10. At the same time, the pressure feeding is stopped and the hose winding machine 36 is
The hose 12 can be wound up.

In the embodiment, the remote control command is transmitted from the remote control switch 94 by radio waves, but it is also possible to transmit it to the pump device 10 and the intermediate hose winding device 14 by wire.

[Effect of idea]

In the invention of claim 1, the intermediate hose winding device is installed at an intermediate point between the installation location of the pump and the spraying location where the worker sprays the chemical solution, and the pump and the intermediate hose winding device are connected by the first hose. At the same time, the intermediate hose winding device and the worker are connected by the second hose. Therefore, even if the distance between the pump installation location and the worker's position is large, the worker only needs to operate the second hose, and the length of the hose that the worker operates during chemical spraying work can be reduced. As the time can be shortened, operating force and effort are reduced.
It is possible to reduce the labor of the worker, and
Work efficiency can be increased.

In the invention of claim 2, since the winding of the second hose in the intermediate hose winding device is remotely controlled by the operator's remote controller, the operator can take up the intermediate hose one by one in order to wind the second hose. The effort of going to the winding device is omitted, improving work efficiency. In addition, even if the distance between the pump installation location and the spraying location increases, the length of the hose to be wound at the intermediate hose winding device can be shortened, so a small and inexpensive motor can be used as the winding motor. can do.

In the third aspect of the present invention, the unwinding of the second hose in the intermediate hose winding device is remotely controlled by the operator's remote controller, so that the operator can unwind the intermediate hose one by one in order to wind up the second hose. This eliminates the need for the operator to go to the removal device, and also eliminates the need for the operator to pull the second hose in order to let it out, reducing labor.

[Brief explanation of drawings]

The drawings relate to an embodiment of this invention, and FIGS. 1 and 2 are diagrams showing the entire situation in which a chemical solution is sprayed using a chemical solution spraying device in a vertical plane and a plane from above, respectively, and FIG. 3 is a diagram showing a pump. A structural diagram of the device, Fig. 4 is a structural diagram of the hose intermediate winding device, Fig. 5 is a diagram showing the connection relationship of the reduction gear, winding drive gear, and feeding drive gear, and Fig. 6 is the hose intermediate winding device. 7 and 8 are side views and a plan view of the backpack-type blower device, and FIG. 9 is a structural diagram of the remote control switch. DESCRIPTION OF SYMBOLS 12... First hose, 14... Hose intermediate winding device, 16... Second hose, 18... Operator, 20... Back-to-back air blower, 22... Jet head, 2
8... pump, 86... nozzle, 94... remote control switch (remote controller), A... first location,
B...Second location.

Claims (1)

[Claims for Utility Model Registration] (1) A pump 28 disposed at a first location A to forcefully feed a chemical solution to the first hose 12, and a pump 28 disposed at a second location B away from the first location A. Said first
a hose intermediate winding device 14 that can freely wind up a second hose 16 connected to the hose 12 of
, a jet head 22 that guides the air from the backpack-type blower 20 and is held by the worker 18 , and a nozzle provided at the tip of the jet head 22 that spouts the chemical solution sent from the second hose 16 . 8
6. A chemical liquid spraying device comprising: (2) The second hose intermediate winding device 14
2. The chemical solution spraying device according to claim 1, wherein winding of the hose 16 is remotely controlled by a remote controller 94 carried by the operator 18. (3) The intermediate hose winding device 14 can freely unwind the second hose 16, and the unwinding of the second hose 16 by the intermediate hose winding device 14 is remotely controlled by the remote controller 94. The chemical liquid spraying device according to claim 2, characterized in that: