Flying Body

Abstract

The present invention provides a flying object capable of effectively reducing the horizontal size of the body. The flying object of the present invention comprises: two first frames, which are arranged in a second direction intersecting the first direction with a first direction as a long side; two second frames, which are arranged in the first direction with the second direction as a long side so as to overlap with the two first frames; a first rotor installed at both ends of the first frame; and a second rotor installed at both ends of the second frame, wherein the second frame is provided with a hinge portion capable of folding the second frame in the middle.

Description

Technical Field

[0001] The present invention relates to flying objects. Background Art

[0002] In recent years, flying objects such as drones and unmanned aerial vehicles (UAVs) (hereinafter collectively referred to as "flying objects") have become popular. For example, there is a multi-rotor aircraft type having a plurality of rotors (for example, see Patent Document 1).

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2013-129301 Summary of the invention

[0006] Problems to be Solved by the Invention

[0007] In the flying object of Patent Document 1, the arm and the rotor occupy most of the horizontal dimension of the body, which is a major factor that reduces the space efficiency during storage.

[0008] Therefore, an object of the present invention is to provide a flying object capable of effectively reducing the horizontal size of the body.

[0009] Means for solving problems

[0010] The flying body of the present invention comprises: two first frames, which have a first direction as a long side and are arranged in a second direction intersecting the first direction; two second frames, which have the second direction as a long side and are arranged in the first direction overlapping with the two first frames; a first rotor installed at both ends of the first frame; and a second rotor installed at both ends of the second frame, wherein the second frame is provided with a hinge portion that can fold the second frame in the middle.

[0011] Effects of the Invention

[0012] According to the present invention, it is possible to provide a flying object capable of effectively reducing the horizontal size of the body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a top view of the flying object of this embodiment.

[0014] Figure 2 It is a side view of the flying object of this embodiment.

[0015] Figure 3 is a plan view showing a state in which the second frame is folded.

[0016] Figure 4 is a side view showing a state in which the second frame is folded.

[0017] Figure 5 It is a general functional block diagram of a flying body.

[0018] Figure 6 This is a diagram showing a first modified example of the frame structure in the flying object of the present invention (part 1).

[0019] Figure 7 This is a diagram (part 2) showing a first modified example of the frame structure in the flying object of the present invention.

[0020] Figure 8 It is a diagram showing a second modified example of the frame structure in the flying object of the present invention. DETAILED DESCRIPTION

[0021] The contents of the embodiments of the present invention will be listed and described. The flying object according to the embodiments of the present invention has the following structure.

[0022] [Project 1]

[0023] A flying object, comprising: two first frames, which have a first direction as a long side and are arranged in a second direction intersecting the first direction;

[0024] two second frames, with the second direction as the long side, arranged in the first direction so as to overlap with the two first frames;

[0025] A first rotor is mounted on both ends of the first frame; and

[0026] The second rotor is mounted on both ends of the second frame, wherein:

[0027] The second frame is provided with a hinge portion capable of folding the second frame in the middle.

[0028] [Project 2]

[0029] The flying object according to item 1, wherein:

[0030] When the second frame is in the folded position, the pairs are folded,

[0031] The pair is composed of a first arm and a second arm folded in a mutually overlapping manner in side view.

[0032] [Item 3]

[0033] The flying object according to item 1 or item 2, wherein:

[0034] The two first frames are horizontally mounted on the two second frames in a tic-tac-toe shape.

[0035] <Details of Implementation Method>

[0036] Hereinafter, a flying object according to an embodiment of the present invention will be described with reference to the drawings.

[0037] <Details of Embodiments of the Invention>

[0038] like Figure 1 As shown, an aircraft 1 according to an embodiment of the present invention includes a rotor 2 , a motor 3 for rotating the rotor 2 , and a frame 4 to which the motor 3 is mounted.

[0039] The rotor 2 rotates by receiving the output from the motor 3. The rotor 2 rotates to generate a propulsion force for the flying object 1 to take off from a departure point, move horizontally, and land at a destination. In addition, the rotor 2 can rotate clockwise, stop, and rotate counterclockwise.

[0040] The blades of the rotor 2 of the present invention have an elongated shape. Any number of blades (rotors) (for example, 1, 2, 3, 4 or more blades) is sufficient. In addition, the shape of the blades can be any shape such as a flat shape, a curved shape, a twisted shape, a conical shape, or a combination thereof. In addition, the shape of the blades can be changed (for example, telescopic, folded, bent, etc.). The blades can be symmetrical (having the same upper and lower surfaces) or asymmetrical (having upper and lower surfaces of different shapes). The blades can be formed into winglets, wings, or a geometric shape suitable for generating aerodynamic forces (for example, lift, thrust) when the blades move in the air. The geometric shape of the blades can be appropriately selected to optimize the aerodynamic characteristics of the blades, such as increasing lift and thrust, reducing drag, etc.

[0041] The motor 3 is used to rotate the rotor 2, for example, the drive unit may include an electric motor or an engine, etc. The blades can be driven by the motor to rotate clockwise and / or counterclockwise around the rotation axis of the motor (for example, the long axis of the motor).

[0042] The blades may all rotate in the same direction or independently. Some blades may rotate in one direction and others in another direction. The blades may all rotate at the same speed or each may rotate at a different speed. The speed may be determined automatically or manually based on the dimensions of the moving object (e.g., size, weight), control state (speed, direction of movement, etc.).

[0043] The frame 4 is a member that supports the corresponding motor 3 and rotor 2. In order to indicate the flight state and flight direction of the rotorcraft, a color body such as an LED may be provided on the frame 4. The frame 4 of the present embodiment can be formed of a raw material appropriately selected from carbon, stainless steel, aluminum, magnesium, etc., or an alloy or combination thereof.

[0044] like Figure 1 and Figure 2 As shown, the frame 4 includes two first frames 40, 40 and two second frames 41, 41. The first frames 40, 40 are laid on the second frames 41, 41 in a cross shape. The first frames 40, 40 and the second frames 41, 41 are connected to each other by a conventionally known method.

[0045] like Figure 1 As shown, the first frames 40, 40 are arranged at predetermined intervals along the X direction (second direction) intersecting the first direction, with the Y direction (first direction) as the long side. The first rotor 20 is mounted to both ends of the first frames 40, 40.

[0046] like Figure 1 As shown, the second frames 41, 41 are arranged with the X direction (second direction) as the long side and overlapped with the two first frames 40, 40 at a predetermined interval along the Y direction (first direction). The second rotor 21 is mounted on both ends of the second frames 41, 41. Figure 4 As shown, the second frames 41, 41 are provided with hinge portions 42 that can fold the second frames 41, 41 in the middle.

[0047] like Figure 3 and Figure 4 As shown, when the second frames 41, 41 are in the folded position, the second frames 41, 41 are folded in pairs. Figure 4 As shown, the pair is composed of a first arm 41A and a second arm 41B folded in a mutually overlapping manner when viewed from the side. Figure 3 As shown, the first arm 41A and the second arm 41B are arranged outside a square space S partitioned by the two first frames 40 , 40 and the two second frames 41 , 41 in a plan view.

[0048] According to the flying object 1 of this embodiment, the second frames 41, 41 are foldable, so that the horizontal size of the body can be effectively reduced, and the flying object 1 that is easy to use on site can be provided. In addition, the trouble of attaching and detaching the second frames 41, 41 can be reduced.

[0049] The above-mentioned flying object has Figure 5 The functional blocks shown. In addition, Figure 5The functional blocks are a minimum reference structure. The flight controller is a so-called processing unit. The processing unit may have one or more processors such as a programmable processor (e.g., a central processing unit (CPU)). The processing unit has a memory not shown in the figure and is able to access the memory. The memory stores logic, code and / or program instructions that can be executed by the processing unit in order to perform one or more steps. The memory may also include, for example, detachable media such as an SD card, a random access memory (RAM), or an external storage device. Data acquired from cameras and sensors may also be directly transferred and stored in the memory. For example, still image and dynamic image data taken by a camera, etc. are recorded in a built-in memory or an external memory.

[0050] The processing unit includes a control module configured to control the state of the flying object. For example, the control module controls the propulsion mechanism (motor, etc.) of the flying object to adjust the state of the flying object with six degrees of freedom (translation x, y and z, and rotation θ x ,θ y and θ z )'s spatial configuration, speed and / or acceleration of the flying object. The control module can control one or more of the states of the carrying part and the sensor.

[0051] The processing unit can communicate with a transceiver, which is configured to send and / or receive data from one or more external devices (e.g., a terminal, a display device, or other remote controller). The transceiver can use any appropriate communication method such as wired communication or wireless communication. For example, the transceiver can use one or more of a local area network (LAN), a wide area network (WAN), infrared, wireless, WiFi, a peer-to-peer (P2P) network, a telecommunications network, a cloud communication, etc. The transceiver can send and / or receive one or more of data acquired by a sensor class, a processing result generated by a processing unit, specified control data, a user command from a terminal or a remote controller, etc.

[0052] The sensor class of this embodiment may include inertial sensors (accelerometers, gyroscope sensors), GPS sensors, proximity sensors (e.g., radars), or vision / image sensors (e.g., cameras).

[0053] The flying object of the present invention is expected to be used as a flying object dedicated to residential delivery business and as an industrial flying object in warehouses and factories. In addition, the flying object of the present invention can be used in aircraft-related industries such as multi-rotor drones. Furthermore, in the present invention, in addition to being suitable for use as a flying object for aerial photography such as carrying a camera, it can also be applied to various industries such as security, agriculture, and infrastructure monitoring.

[0054] The above embodiments are only exemplified for easy understanding of the present invention and are not intended to limit the present invention. Of course, the present invention can be changed and improved within the scope of the gist thereof, and the present invention includes its equivalents.

[0055] (First Modification)

[0056] Figure 6 and Figure 7 1 is a diagram showing a first variation of the frame structure in the flying body of the present invention. Figure 6 As shown, for a square space S divided by two first frames 40, 40 and two second frames 41, 41, the four vertices of the square space S are defined as V1 to V4 in a clockwise direction. Figure 6 As shown, the frame structure includes: a first arm 41A, which extends along the X direction starting from the midpoint between the apex V1 and the apex V2; and a second arm 41B, which extends along the X direction opposite to the first arm 41A starting from the midpoint between the apex V3 and the apex V4. Figure 7 As shown, a hinge portion 42A capable of folding the first arm 41A downward and a hinge portion 42B capable of folding the second arm 41B downward are provided in the frame structure. According to the frame structure of this modified example, by making the first arm 41A and the second arm 41B foldable, the horizontal size of the body can be effectively reduced, and a flying body that is easy to use on site can be provided. In addition, the trouble of loading and unloading the first arm 41A and the second arm 41B can be reduced.

[0057] (Second Modification)

[0058] Figure 8 1 is a diagram showing a second variation of the frame structure in the flying object of the present invention. In this variation, the first arm 41A is connected to the first frame 40 in a detachable manner. Similarly, the second arm 41B is also connected to the first frame 40 in a detachable manner. According to the frame structure of this variation, the first arm 41A and the second arm 41B can be separated from the first frame 40, so that the horizontal size of the body can be effectively reduced, and a flying object that is easy to use on site can be provided.

[0059] Explanation of symbols

[0060] 1 Flying body

[0061] 20 First rotor

[0062] 21 Second rotor

[0063] 40 First Frame

[0064] 41 Second Frame

[0065] 41A First Arm

[0066] 41B Second Arm

[0067] 42 hinge

Claims

1. A flying object, comprising: Two first frames, with the first direction as the long side, are arranged in a second direction intersecting the first direction; two second frames, with the second direction as the long side, arranged in the first direction so as to overlap with the two first frames; a first rotor mounted on both ends of the first frame; as well as The second rotor is mounted on both ends of the second frame, wherein: The second frame is provided with a hinge portion capable of folding the second frame in the middle. The hinge part is only provided on the second frame. The second frame (41, 41) includes: a first arm (41A) extending along the second direction; and a second arm (41B) extending along the second direction opposite to the first arm (41A). The second frames (41, 41) are folded such that, in a plan view, the first arm (41A) and the second arm (41B) are arranged outside a square space (S) divided by the two first frames (40, 40) and the two second frames (41, 41), The first arm (41A) extends along the second direction with the vertex of the square of the space (S) as the starting point, and the second arm (41B) extends along the second direction opposite to the first arm (41A) with the vertex of the square of the space (S) as the starting point. Wherein, the flying body has six arms. When the second frame is in the folded position, it is folded in pairs consisting of a first arm and a second arm folded in an overlapping manner in a side view, the first arm and the second arm extending from near the center of the space (S).

Images