JP2001270497A - Unmanned helicopter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the operatability in carrying work of an unmanned helicopter provided with a handle for carrying. SOLUTION: The handle 48 for carrying is foldably mounted on a skid strut 15 of a remote controlled helicopter A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote-controlled unmanned helicopter used for field control or fertilization.

[0002]

Conventionally, in the transport of an unmanned helicopter of this type, a transport handle separate from the machine is fixed to a skid support each time, and the transport operation using the handle is performed. However, since the handle is a separate item, the cost is high, and it is not only troublesome to detach and attach each time it is transported, but it is necessary to securely store the removed handle without losing it when not in use except for transport .

[0003]

According to the present invention, a carrying handle is foldably attached to a skid support of a remote-controlled helicopter, and the carry handle is integrally stored in the skid support during a flight operation. Attached to the flight, which does not cause the handle to fall off or cause resistance, and improves the workability by making it easier to use the handle without having to attach it to the main body each time the helicopter is transported. It is.

[0004] Further, a storage hole for storing the handle is formed in the skid support, and the handle is stored in the skid support in a compact manner without causing resistance or obstruction during flight or storage of the helicopter. This improves workability.

Further, a handle is mounted on a shaft member fixed to the skid support so as to be slidable in the axial direction and rotatable about the shaft so that the handle can be freely folded so that the handle is securely supported by the machine. At the same time, the use and non-use of the handle can be switched smoothly without the need for tools or the like, thereby facilitating the transport operation of the helicopter.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a side view of a helicopter, FIG.
FIG. 1 is a front view of a helicopter, in which (A) is a helicopter for unmanned flight by remote control, in which a main rotor (1) and a stabilizer (2) are connected by a helicopter (A).
And the skid (4) is fixed below the body (3). Also, a tail rotor (6) is provided at the rear end of the tail boom (5) on the rear side of the body (3), and a medicine tank (7) is fixed to the lower side of the body (3).
The medicine (B) such as liquid fertilizer or insecticide is sprayed in the air while flying unmanned.

An engine (9) and a transmission case (10) are mounted inside the body (3) via a main frame (8), and a muffler (11) and a fuel tank (12) are provided. The engine (9) is started by a manual operation of pulling a lever, the main rotor (1) and the tail rotor (6) are driven by the engine (9), and the transmitter (B) for radio control is operated by the operator at hand. To fly the helicopter (A). Reference numeral (13) denotes a helicopter (A) control receiver, and (14) denotes a monitor light.

Further, as shown in FIG. 3 and FIG. 4, a receiving frame (16) is connected to the connecting portion between the main frame (8) and the supporting members (15) (15) made of leaf springs for mounting the skid (4).
(17) is fixedly fastened by bolts (18) and (18), and knob bolts (19) and (19) are attached to receiving frames (16) and (17).
The front and rear receiving plates (20) and (21) are removably fixed via. Further, the spray frame (22) is fixed to the front receiving plate (20), the left and right spray pumps (23) and (24) are attached to the lower surface side of the spreading frame (22), and the front and rear receiving plates (2) are mounted.
0) and (21) are connected to the front and rear portions of the medicine tank (7) via buffer rubbers (25) and (25). Left and right input ports (27) having openable and closable caps (26) and (26)
(27) is connected to both sides of the control tank (7) symmetrically, and a chemical solution movement regulating plate (not shown) is provided inside the inlet (27), so that even if the helicopter (A) is tilted left and right, the chemical tank ( 7) Chemicals such as fertilizer or chemical solution inside (B)
Move in the direction of the inlet (27) to prevent the center of gravity of the helicopter (A) from moving left and right.

[0009] Further, an inlet (27) of the tank (7).
A mounting base (28) is integrally formed on the outer side wall, and a base end of the round pipe type atomizer arm (29) is directly mounted on the mounting base (28) via a fulcrum shaft (30) so as to be rotatable in the left-right direction. With the atomizer (3)
1) Resin bearing (33) for atomizer motor (32)
The tip of the atomizer arm (29) is directly fixed to the arm (2) to reduce the length of the atomizer arm (29) and the arm (2) to the bearing (33) of the atomizer (31).
By directly fixing 9), the weight is reduced, and the mounting capacity of the helicopter (A) is increased to improve the efficiency. Furthermore, by directly fixing the tip of the arm (29) to the resin bearing (33) of the atomizer (31), the vibration of the motor (32) is suppressed from being transmitted to the machine side, and the vibration preventing effect is obtained. By rotating (29) inward about the fulcrum shaft (30), the arm (29) is compactly folded to make transport and storage of the helicopter (A) convenient. I have.

A pipe cap (33) is attached to the lower surface of the chemical tank (7), and the left and right spray pumps (23) (2) are attached.
4) and the cap (33) are connected by a suction pipe and a return pipe, and the medicine (B) in the tank (7) is sucked into the pumps (23) and (24) via the suction pipe, and the sucked medicine (B)
Is returned to the tank (7) via a return pipe, and after the medicine (B) discharged from each of the pumps (23) and (24) is merged, the left and right atomizers (31) are connected via electromagnetic valves and check valves. ) (31), and the medicine (C) is sprayed to the field from one or both of the left and right atomizers (31) and (31) by remote operation of an electromagnetic valve.

As shown in FIG. 5, a vibration type medicine sensor (35) for detecting the remaining amount of the medicine in the medicine tank (7) is provided on the outer wall at the bottom of the tank (7), and the sensor (35) has a constant remaining amount. When detecting the following, a signal is sent to the transmitter (B) for hand operation via the transmitter (36) provided in the tank (7), and the remaining amount lamp (37) of the transmitter (B) is turned on. At the same time, a remaining amount display lamp (38) installed on the machine side, such as the input port (27) of the tank (7) and the outer wall, is simultaneously turned on to allow a pilot or the like to visually confirm the necessity of replenishing the medicine. ing.

The transmitter (B) has a rectangular box-shaped case (3
9) Left lamp (37) and left and right stick (40)
(41), a liquid crystal display (42), and the like, and a control signal based on a vertical and horizontal operation of the left and right sticks (40) and (41) is transmitted via a transmitting antenna (43) to a receiving antenna of a receiver (13). (44) to remotely control the helicopter (A).

As shown in FIG. 3, the medicine tank (7) is fixed to the machine side by a knob screw (45) attached from the side, and has front and rear support plates (20) and (21).
To the mounting stay (4)
Attach the mating edge (7a) of the tank (7) body to 6),
Even when there is no space above, the tank (7) is fixed to the mounting stay (46) by the knob screw (45) from the wide side with a large space, so that the tank (7) can be easily attached to and detached from the machine. It is configured to be.

As shown in FIG. 6 to FIG.
A transport handle (48) is rotatably mounted in the vicinity of the leg (4) of (5) via a support shaft (47) as a shaft member. A bolt hole (49) is provided in one end of the support (47). ) Is fixed, and the pivot plate (50) is fixed to the inner surface of the support (15) via a bolt (51), and is rotatably fitted to the support shaft (47). The cylindrical shaft to be made (52)
A T-shaped handle (48) is formed by fixing a grip portion (53) made of a round bar or a pipe to the T-shape, and is a substantially L-shaped storage hole through which the distal end side of the grip portion (53) penetrates. A through hole (54) is opened in the column (47), and the through hole (5) is opened.
When the grip (53) faces the vertical hole (54a) of (4) and comes into contact with the stopper (55) fixed to the inner side surface of the support (47), the grip (53) is inserted in the vertical hole (54a). ), While holding the grip (53) with the support shaft (47).
Is rotated about 90 degrees around the center, and the tip side is a column (47)
When projecting outward, the side hole (54) of the through hole (54)
The handle (48) can be moved in the axial direction of the support shaft (47) within the range of (b), and the vertical movement of the grip (53) is controlled at the end of movement of the lateral hole (54b). The handle (53) is maintained in a substantially horizontal position by regulating the thickness of the column (15), so that the helicopter (A) can be easily loaded and unloaded using the handle (48) to a truck or the like. I have.

Helicopter (A) for work breaks
When the flight stops, the grip (53) in a substantially horizontal attitude
By holding and holding the handle (56) of the transmitter (B), the damage of the transmitter (B) can be effectively prevented.

As described above, during the flight operation of the helicopter (A), the handle (48) is inserted into the vertical hole (5) of the through hole (54).
4a) to carry out the flight with high accuracy without causing the handle (48) to be a resistance or an obstacle, and to load the helicopter (A) on a tractor or the like, as in the conventional case, The handle (4) can be easily operated by rotating the grip (53) approximately 90 degrees and moving it in the front-rear direction without bothering the user to attach the handle (4) to the body.
8) can be used to facilitate loading operation and improve workability.

As shown in FIG. 10, the medicine tank (7)
An air vent hole (57) through which the air in the tank (7) flows is opened substantially in the center of the cap (26), and an opening / closing valve (58) that moves up and down according to the amount of the chemical solution is provided in the vent hole (57). The upper end surface of the valve (58) is connected to the cap (26) via a plane cross-shaped elastic support member (59), and the lower end closing portion ( When the hole (57) is moved downward to open the hole (57) and air is circulated, the liquid (liquid) overflows when the hole (57) is closed by moving the closing portion (58a) upward and closing the hole (57).
7) It is configured to prevent further outflow. Reference numeral (60) denotes a packing for bringing the cap (26) into close contact with the upper end surface of the inlet (27) of the medicine tank (7).

FIG. 11 shows an example of a configuration in which the chemical tank (7) is mounted on the machine without the necessity of fastening a knob bolt, etc. The tank is connected to the chemical tank (7) via bolts (61a). A mounting plate (61) for mounting is fixed, and a lower end and an upper end of a mounting hole (62) formed in the mounting plate (61) are provided with a large-diameter hole portion (62a) and a small-diameter hole portion (62).
b) and the knob screws (6) of the mounting stays (64) of the machine-side frame (63) constituting the main frame (8).
After inserting the large-diameter hole (62a) through the mounting plate (6).
1) is moved downward and the small diameter hole (62) is inserted into the knob screw (65).
b), the frame (6)
The tank (7) is fixed to 3), and the tank (7) can be attached and detached by one-touch operation without troublesome operation such as operating a knob screw each time.

The large-diameter hole portion (62a) and the small-diameter hole portion (62b) extend in the left-right direction of the mounting hole (62) of the mounting plate (61).
And the tank (7) may be attached and detached by moving the mounting plate (61) in the left-right direction.

FIG. 12 shows a structure in which the mounting frame structure of the chemical tank (7) to the machine is an integrated structure formed by drawing of synthetic resin material. The tank (7) and the spray pumps (23) and (24) are mounted on the mounting frame (66), and the mounting frame (66) is directly connected to the main frame (8) via the cushion rubber (25). With this configuration, the number of parts constituting the mounting frame is reduced, and a welded portion is eliminated, thereby reducing weight and cost.

FIG. 13 shows an example of a structure in which the medicine tank (7) is connected to the main frame (8) by a hanging linear member (67) such as a wire or a spring. In addition to the above, the tank (7) can be easily attached and detached by the hooking structure of the linear member (67), and the effect of preventing vibration can be improved.

[0022]

As is apparent from the above embodiments, the present invention relates to a skid support (1) for a remote-controlled helicopter (A).
Since the carrying handle (48) is foldably attached to 5), the carrying handle (48) is used during the flight operation.
Of the helicopter (A) while the helicopter (A) is being transported. 48) can be easily used without the need to attach it to the main body, thereby improving workability.

Also, since the storage hole (54) for storing the handle (48) is formed in the skid support (15), the handle (48) may have resistance or obstruction during flight or storage of the helicopter (A). It is possible to improve the operability when the handle is not used by being housed in a compact manner in the skid support (15).

Further, a handle (48) is attached to a shaft member (47) fixed to the skid support (15) so as to be slidable in the axial direction and rotatable about the shaft (47) so as to be freely foldable. The handle (4
8) can be reliably supported, and the use and non-use of the handle (48) can be switched smoothly without using tools or the like, so that the helicopter (A) can be easily transported. You can do it.

[Brief description of the drawings]

FIG. 1 is an explanatory side view of a helicopter.

FIG. 2 is an explanatory front view of the helicopter.

FIG. 3 is an explanatory side view of a medicine tank unit.

FIG. 4 is an explanatory plan view of a medicine tank unit.

FIG. 5 is an explanatory front view of a medicine tank unit.

FIG. 6 is an explanatory perspective view of a carrying handle.

FIG. 7 is an explanatory view of storing a handle portion for transportation.

FIG. 8 is an explanatory view of use of a carrying handle portion.

FIG. 9 is an explanatory view of switching a handle portion for transportation.

FIG. 10 is an explanatory diagram of a tank cap portion.

FIG. 11 is an explanatory view of a mounting example of a medicine tank.

FIG. 12 is an explanatory view of a mounting example of a medicine tank.

FIG. 13 is an explanatory view of a mounting example of a medicine tank.

[Explanation of symbols]

 (15) Support (47) Support (shaft member) (48) Handle (54) Hole (A) Helicopter

Claims (3)

[Claims] 1. An unmanned helicopter, wherein a transport handle is foldably attached to a skid support of a remote-controlled helicopter. 2. The unmanned helicopter according to claim 1, wherein a storage hole for storing a handle is formed in the skid support. 3. An unmanned unmanned vehicle according to claim 1, wherein a handle is attached to a shaft member fixed to the skid support so as to be slidable in the axial direction and rotatable around the shaft so as to be freely foldable. Helicopter.