JPH11147058A - Radio-controlled helicopter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out chemical spray by constituting a body suitable for starting an engine easily for a radio-controlled helicopter with a chemical spray device mounted thereon for spraying a chemical in the air. SOLUTION: A radio-controlled helicopter is so constituted as to start and stop an engine 31 by the radio control, and a skid 12 and a chemical spray device 15 mounted on the lower section of a body are integrated removably, and a spray 5 of the chemical spray device 15 is provided on the front of the skid 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of a radio-controlled helicopter.

[0002]

2. Description of the Related Art Conventionally, a technique has been known in which a radio-controlled helicopter can be used to spray medicine in the air. The drug spraying device mounted on the conventional radio-controlled helicopter is installed on the side of the fuselage or directly below the main rotor, inserting the drug spraying device between the skids,
The medicine spraying device is mounted. In addition, when attaching or detaching the medicine spraying device, it is necessary to disassemble the medicine spraying device in order to allow passage between the skids.
The engine is started using a recoil starter.

[0003]

In the conventional configuration, since the engine of the radio-controlled helicopter is manually started, it is necessary for the pilot to approach the airframe and start the engine, and there is a possibility that the operator hits the propeller. is there. And
Since the user is away from the airframe and starts the wireless operation, if the engine is not successfully started, the above operation needs to be repeated. In addition, when attaching or detaching the medicine spraying device to be mounted on the body, it is necessary to temporarily disassemble the medicine spraying device, which takes time. Alternatively, the structure is limited so that the medicine spraying device can be easily inserted into the skid.

[0004]

According to the present invention, in a radio-controlled helicopter which is equipped with a medicine spraying device and sprays medicine in the air, the engine is started by remote control. The skid and the drug spraying device are integrated and made detachable, and the drug spraying device is mounted in front of the skid.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a medicine spraying device using an impeller will be described. However, the present invention can be replaced with a medicine spraying device using an atomizer spraying machine described later. That is, the present invention can be realized in all intended matters, and is not limited to the following description.

Next, an embodiment of the present invention will be described. FIG. 1 is a side view of one embodiment according to the present invention, and FIG. 2 is a front view of one embodiment according to the present invention. FIG. 3 is a side view of the medicine spraying apparatus according to the present invention. 1, 2, and 3, the fuselage 1 includes a tail pipe 23 extending horizontally from the rear side, and a driving engine 31 is mounted inside the fuselage 1. The output of the engine 31 is transmitted to a vertically extending main rotor shaft 21 and a main rotor 22
(Propeller) to rotate. The engine output is transmitted to a tail rotor shaft 24 attached to the rear end of the tail pipe 23, and a tail rotor 25 attached to the shaft 24 is driven to rotate in synchronization with the main rotor 22. Further, a generator (not shown) mounted on the engine 31 is provided inside the fuselage 1 of the radio-controlled helicopter, and the power generated by the generator is supplied to a battery (not shown) via a rectifier circuit (not shown). It is stored. Covers 11 are mounted on the left and right sides of the body 1, and a rod-shaped antenna 13 is provided at the front of the tail pipe 3 so as to protrude in the left-right direction. The receiving linear antenna 14 of the device 15 is mounted on the body 1. Rod antenna 13
Is connected to a receiver 34 for body operation, which will be described later, and the linear antenna 14 is connected to a receiver for a drug spraying device (not shown).

[0007] The body 1 is equipped with a medicine spraying device 15. The medicine spraying device 15 is fixed to the skid 12, mounted on the lower part of the machine body 1, and is provided with a tank 2 for storing a medicine for spraying and extending in the left-right direction, and a frame 8 supporting the tank. It is composed of a medicine spraying machine 5 for spraying medicine such as granules. A duct 3 for guiding the stored medicine is communicated below the tank 2, and the medicine is introduced into the medicine sprayer 5 by the duct 3. A gate valve device 4 is interposed between the duct section 3 and the medicine tank 2 so that the amount of medicine introduced into the medicine sprayer 5 can be adjusted.

The fuselage cover 11 is configured to be splittable left and right at the center of the fuselage when viewed from the front, and is configured to open in the horizontal direction. The left and right fuselage covers 11 are attached to the fuselage 1 by a binding device. You. The tank 2 extends along the side of the body 1 from the lower part of the body 1 to the left and right sides of the body 1 so as to follow the shape of the body 1 while being spaced apart so that the body covers 11 and 11 can be removed. Has been extended. For this reason, the body cover 11 can be opened and closed with the medicine tank 2 mounted. Further, the medicine tank 2 has a narrow center portion in plan view. A hole through which a medicine flows out is provided on the bottom surface of the central part of the medicine tank 2, and the inside of the medicine tank 2 is provided so as to be inclined downward from the left and right ends toward the center. It is configured to flow into the duct 3. Further, a supply port is provided on both the left and right sides, so that the medicine can be supplied from both the left and right sides or one side. The medicine stored in the tank 2 is introduced into the duct 3 by its own weight. After the flow rate is adjusted by the gate valve device 4 above the duct portion 3, it is supplied to the medicine sprayer 5.

The medicine tank 2 is made of a transparent resin. Therefore, it is possible to easily know the remaining amount of the medicine visually. There is no need to check the remaining amount of the medicine by landing the body 1 and opening the filler port.
The state of introduction of the medicine can be visually checked, and the consumption state of the medicine can be confirmed even when the medicine is being sprayed.

The chemical sprayer 5 is provided at a lower portion of the tank 2, and is provided with an impeller 16 rotatably provided about a vertical axis and a sprayer cover 18 concentrically covering the upper side of the impeller 16. A motor 20 for rotating and driving the impeller 16 is provided. The shaft of the motor 20 is directly connected to the drive shaft of the impeller 16. The motor 20 is driven by electric power supplied from the generator via the battery or the rectifier circuit, and the driving of the motor 20 is controlled by radio control via the controller. The number of rotations of the motor 20 is controlled by a manual or wireless operation through a control circuit (not shown), thereby making it possible to increase or decrease the spraying range of the medicine.

The impeller 16 driven to rotate by the motor 20 is configured to discharge the medicine dropped from the duct portion 3 by rotation in the horizontal direction. Also,
The medicine sprayer 5 may be provided with the sprayer cover 1 as necessary.
A restricting plate 19 is provided extending from the front edge of the impeller 16 to the periphery of the impeller 16, whereby it is possible to restrict the release direction of the medicine.

FIG. 4 is a schematic diagram of one embodiment of the present invention. In FIG. 4, a starter 32 is provided on an engine 31 mounted in the airframe 1.
2 is connected to the controller 33. The controller 33 is connected to a receiver 34 for maneuvering the aircraft, and the engine 31 can be started by wirelessly operating the transmitter 35. The engine 31 can be started by driving a flywheel (not shown) of the engine 31 by the starter 32 using electric power of a battery (not shown) installed in the body 1. To take such a configuration,
The pilot starts the starter 32 in the fuselage 1 by the transmitter 35 from a place some distance from the fuselage 1,
The engine 31 can be started. Alternatively, an electromagnetic valve may be provided between the fuel tank and the engine, or a switch may be provided in the ignition device, connected to the controller 33, and the electromagnetic valve may be closed or the ignition circuit opened by the transmitter 35 to stop the engine. . In this configuration, the receiver uses a receiver for a medicine spraying device, and the starter 32
Can also be activated.

The medicine spraying device 15 is fixed to a skid 12 fixed to the lower part of the machine body via a frame 8, and the medicine spraying device 15 and the skid 12 are integrated. Therefore, the configuration of the medicine spraying device 15 is
There is no need to make it detachable between the two, and design flexibility can be increased. The medicine spraying machine 5 has a body 1
Is arranged at the front of the medicine sprayer 5 so that the medicine sprayed from the medicine sprayer 5 is less likely to come into contact with the skid 12. The present invention is characterized in that the medicine spraying device 15 and the skid 12 are integrated, and the present invention is not limited to the embodiment. It is possible. Furthermore, it is also possible to arrange the medicine spraying machine 5 at the front part of the fuselage to improve the operability of the fuselage. It is also possible to make it easy for the operator to recognize the direction in which the medicine is sprayed. In the medicine spraying device 15, it is also possible to arrange the medicine tank 2 at the front and shorten the duct portion 3 of the medicine spraying device 15.

Next, in the present invention, a case where an atomizer sprayer is used as a sprayer of the medicine spraying apparatus will be described. FIG. 5 is a side view showing the second embodiment of the present invention, and FIG. 6 is a front view showing the second embodiment of the present invention.
5 and 6, the medicine spraying device 45 includes a medicine tank 42 extending from the lower part of the machine body to both side surfaces, and the medicine tank 4.
2, a support arm 44 protruding in both left and right directions at the front of the fuselage, and atomizer sprayers 46, 46 suspended on both left and right ends of the support arm 44.
And a liquid supply tube (not shown) connected from the chemical liquid tank 42 to the atomizer sprayer 46.
The stay 48 extends forward of the skid 12 and has the support arm 44 fixed at the tip thereof.

The chemical solution tank 42 extends from the lower part of the body 1 in the left-right direction in front view along the side surface of the body 1, and a gap is provided between the body covers 11 to provide When the device 45 is mounted on the body 1, the covers 11 are configured to be detachable. The tank 42 is provided so as to be inclined downward from the left and right ends toward the center, and is configured so that the chemical flows into the supply unit 50 provided on the bottom surface at the center. In addition, liquid supply ports are provided on both left and right sides, so that liquid medicine can be supplied from both left and right sides or one side. The chemical liquid tank 2 is fixed to the body 1 by a stay 48 to which a pump 51 disposed in front of the chemical liquid tank 42 is fixed. At the front of the stay 48, a central portion of a support arm 44 is fixedly mounted in the front-to-rear left and right direction.
6 is fixed downward.

As shown in FIGS. 5 and 6, the chemical solution stored in the chemical solution tank 42 is supplied from a supply unit 50 provided at the bottom of the chemical solution tank 42 to a pump 51. It is sent to 51. The liquid is supplied from the pump 51 to the atomizer sprayer 46 through the liquid supply tube penetrated into the support arm 44. The atomizer sprayer 46 is driven by a motor, and may spray a chemical solution in the air (a configuration in which the atomizer is driven via a flexible wire by an engine is also possible). The atomizer sprayer 46 is disposed at the tip of a stay 48 extending forward of the skid 12, and is configured to spray a chemical solution at a front portion of the machine body. The skid 12 and the stay 48 are integrated, and are configured to increase the rigidity of the medicine spraying device 45. In the present invention, the stay 48 can be welded and fixed to the skid 12 to further increase the rigidity.

[0017]

According to the first aspect of the present invention, since the engine can be started and stopped by radio control, complicated operations involved in starting the engine can be eliminated. Also,
Since there is no need to approach a radio-controlled helicopter,
The labor of the operator can be reduced. Therefore, workability is improved, work time can be shortened, and it is economical.

[0018] With the structure as claimed in claim 2, it is possible to increase the degree of freedom in designing the medicine spraying device. Further, when the medicine is sprayed by the medicine spraying device, since the sprayer is disposed in front, the medicine comes into contact with a skid provided on the lower part of the fuselage, and the medicine is different from the one assumed by the pilot. The risk of splashing in the direction and wasting the drug is reduced. Since the spreader is provided in front of the fuselage, maintenance and inspection of the spreader can be easily performed. Further, the operator can easily see the sprayer, and thus easily recognize the abnormality of the sprayer. Further, it is easy to predict the direction in which the medicine is sprayed. For this reason, workability is improved, medicine can be saved, and it is economical. In addition, the work load on the operator is reduced. In addition, it is possible to increase the rigidity of the medicine sprayer, and therefore, it is possible to improve the durability of the medicine sprayer.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment according to the present invention.

FIG. 2 is a front view of one embodiment according to the present invention.

FIG. 3 is a schematic diagram showing an engine starting mechanism according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of one embodiment of the present invention.

FIG. 5 is a side view showing a second embodiment of the present invention.

FIG. 6 is a front view showing a second embodiment of the present invention.

[Explanation of symbols]

 5 Drug Sprayer 12 Skid 31 Driving Engine 32 Starter 33 Controller 34 Receiver for Aircraft Operation 35 Transmitter 46 Atomizer Sprayer

Claims (2)

[Claims] 1. A radio-controlled helicopter equipped with a drug spraying device and spraying a drug in the air, wherein the engine is started and stopped by remote control. 2. The radio-controlled helicopter according to claim 1, wherein the skid and the medicine spraying device are integrated to be detachable,
The radio-controlled helicopter according to claim 1, wherein a medicine sprayer is disposed in front of the skid.