JP3150942U - Flying toy - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a flying object that flies and flies in the atmosphere without using a propeller that exposes to the outside. SOLUTION: A blower device 10 comprising a rotating blade that pumps air introduced from an axial flow direction in a centrifugal direction, and a skirt-shaped fixed blade 1 in which at least an inner surface forms a conical surface where the blower device is arranged concentrically. A blower is suspended from the inner upper portion of the fixed wing so that the air blown and blown in the centrifugal direction collides with the conical surface of the fixed wing, and the upper portion of the fixed wing is axially directed to the blower. In a flying toy that is closed except for the air passage 6 introduced from the air, a part of the air blown from the blower to the inner surface of the fixed wing collides with the reaction of the fixed wing caused by the rotation of the blower. A plurality of flaps 9 that generate a drag force against the torque project at equal angular intervals on the same circumference of the inner surface of the fixed wing. [Selection] Figure 1

Description

The present invention relates to a flying toy that flies and flies, and more particularly to a flying toy that can fly in the vertical direction.

  The conventional flying toy moves up with the thrust of a propeller, jet engine, rocket engine, etc., and moves the wings relative to the atmosphere, creating a flow of air that generates lift on the front and back of the aircraft. . Therefore, it is necessary to always move forward in order to obtain lift, and it is impossible to stop and hover in the air except for a special case.

  On the other hand, a helicopter-type flying toy floats by rotating the wings to move the wings relative to the atmosphere to generate lift (for example, Patent Document 1).

  On the other hand, as a flying body in which a rotating body is not exposed to the outside, an invention has been proposed in which a flying device for blowing air in a centrifugal direction is provided at the center of a ring-shaped wing (Patent Document 2). This invention has a ring-shaped wing, and presupposes the principle that an air flow is generated in the ring-shaped wing by blowing air radially from a blower that blows in the centrifugal direction to generate lift. Yes.

  Similarly, the upper blower composed of rotating blades that pump air in the axial direction and the lower blower composed of rotary blades that pump air fed from the upper blower in the centrifugal direction are rotated in opposite directions. It consists of a blower arranged on the same axis, and a skirt-like fixed wing whose conical surface forms at least the inner surface where the blower is concentrically arranged. The lower air blower is suspended so that the air collides with the conical surface of the fixed wing, and the upper part of the fixed wing is closed except for the axial flow passage fed from the upper air blower to the lower air blower. An aircraft characterized by this has been proposed by the present applicant (Patent Document 3).

Utility Model Registration No. 3036829 JP 2004-168276 A JP 2008-137527 A

  The above helicopter-type flying toy can be stopped and hovered in the air, but the rotating wings are much larger than the fuselage and rotate outside the fuselage, making the wings defenseless against external obstacles, especially It was dangerous for children to play, and sufficient consideration was required as a toy. Also, assuming indoor flight, there is a risk of damage from collision with furniture, lighting equipment, walls, etc., so implementation is limited to those that can be remotely controlled by radio control etc. There were inconveniences that could not be implemented.

  On the other hand, in the flying body described in Patent Document 2, it is assumed that the blower placed in the center of the ring-shaped wing takes air from the upper center or the vertical direction of the center and blows it radially toward the ring-shaped wing. Therefore, the wing communicates with the air above the wing in the central hole, and the lift is canceled by taking in from below the blower. That is, even if lift is recognized when the aircraft is fixed at a fixed position, in the state where a load is actually applied to the aircraft, the airflow is only the amount of the load from the gap between the blower and the center hole of the wing. Even if the blade crosses away in the reverse load direction and the blade cross section generates lift as a result, the air blown from the upper side of the blower escapes to the blade upper surface by the amount of the load, so that the levitation is not suitable.

  On the other hand, the flying object described in Patent Document 3 is completely levitated and has an excellent effect. However, it is completely possible that a fixed wing carrying a person or a baggage is rotated by the counter torque generated by the rotation of the blower. Therefore, the upper and lower air blowers must be arranged coaxially so that they rotate in opposite directions, and the mechanism becomes complicated, which is disadvantageous in terms of weight and cost when a flying toy is assumed. It was.

  The present invention was created in view of the above-described problems of the prior art, and an object thereof is to provide a flying toy with a simple configuration in which a rotating body is not exposed to the outside.

  That is, the flying toy of the present invention is a skirt-like device in which at least the inner surface of which a concentric arrangement is provided with a blower composed of a rotating blade that pumps air introduced from an axial flow direction in a centrifugal direction and a conical surface. An air blower is provided vertically on the inner upper part of the fixed wing so that air blown in the centrifugal direction collides with the conical surface of the fixed wing. In a flying toy that is closed except for the air passage introduced from the flow direction, a part of the air blown from the blower to the inner surface of the fixed wing collides with the fixed wing produced by the rotation of the blower. A plurality of flaps that generate a resistance against an anti-torque are projected at equal angular intervals on the same circumference of the inner surface of the fixed wing.

  According to this device having the above configuration, firstly, the air pressure-fed and blown in the centrifugal direction collides with the inner conical surface of the fixed wing, so that an air pressure difference is generated between the fixed wing and the outside due to the air flow. Is generated and lift is generated. And in this case, the fixed blade upper part is closed except for the passage of air introduced into the blower from the axial direction, and air is constantly being pumped downward from the blower, Like the flying toy described in Patent Document 2, the airflow escapes in the reverse load direction by the amount of the load, and the lift is not canceled out.

  Secondly, the air pumped in the centrifugal direction collides with the inner conical surface of the fixed wing, whereby the airflow is deflected obliquely downward depending on the inclination angle, and stress is obtained. This stress raises the flying toy. It becomes a thrust. Also, in this case, the rotating blades of the lower blower are arranged concentrically with the skirt-shaped fixed wing whose inner surface forms a conical surface, so that they are pumped in the centrifugal direction and collide with the inner conical surface of the fixed wing. The reaction force gathers on the shaft and causes an action to cancel each other.

  Thirdly, a part of the air blown from the blower device to the inner surface of the fixed wing collides, so that a plurality of flaps that generate a resistance against the anti-torque of the fixed wing caused by the rotation of the blower device are Since the protrusions are provided at equal angular intervals on the same circumference, an effect of preventing the fixed blades from rotating by the counter-torque generated by the rotation of the blower is generated.

  Fourth, since air is not pumped directly under the lower blower that collides the air pumped in the centrifugal direction with the conical surface inside the fixed wing, power or articles are suspended by using the space at that location. It becomes possible to do.

  Fifth, the fixed wing that also serves as the aircraft body of the flying toy has a skirt shape whose inner surface forms a conical surface, so that the wing moves relative to the atmosphere when it moves in the plane direction, and lift is applied to its front and back. A generated air flow is generated.

  The flying toy of this device does not have a rotating wing and floats in the air by generating lift inside the fixed wing that also serves as the aircraft, and by controlling its direction, the rotating propeller and rotating wing are Therefore, it is possible to prevent accidents and injuries caused by this, and a flying toy that can fly vertically in the indoor direction can be realized without any inconvenience and danger.

  Further, the rotation due to the counter-torque of the fixed blade caused by the rotation of the blower is prevented by the flap utilizing the essential feature of this device that air is blown from the blower to the inner surface of the fixed blade. This makes it possible to realize a low-cost flying toy that can fly vertically.

The front sectional view of the flying toy of this device. The perspective view of the principal part same as the above. Same as above, partially cut away bottom view. The perspective view of the principal part of an air blower same as the above. The perspective view of an air blower same as the above.

  Hereinafter, specific embodiments of the flying toy according to the present invention will be described with reference to the accompanying drawings. 1-5 is a figure which shows the Example of the flying toy of this invention. Reference numeral 1 in the figure denotes a fixed wing that also serves as a flying toy body. The fixed wing is required to have a skirt shape in which at least the inner surface forms a conical surface T. Here, the upper portion is formed in a truncated cone shape that forms a flat top plate 3.

  Next, reference numeral 10 in the figure denotes a blower, which is composed of a rotating blade that pumps air introduced from the axial direction in the centrifugal direction. In this embodiment, the blower 10 is a turbo fan in which a blade 14 is provided between a closed disc 13 and a disc 11 having a through hole 12 in the center (see FIGS. 4 to 5).

  The air blower 10 is vertically suspended inside the top plate 3 of the fixed wing 1 so as to be rotatable. In this embodiment, a mount 4 provided with a vent hole 5 on the peripheral side is projected on the top plate 3 of the fixed wing 1, and the rotary shaft 15 of the blower device 10 is rotatably suspended from the mount. It is a hanging means. The top plate 3 of the fixed wing 1 must be closed except for the axial flow passage 6 introduced through the through hole 12 of the blower 10.

  Reference numeral 16 in the drawing denotes a power source for driving the blower 10. In this embodiment, a mount 7 having a vent 8 on the inner side of the fixed wing 1 is installed on the inner surface of the fixed wing 1. The source is suspended. As the power source, in addition to the motor and the internal combustion engine, it is assumed that the blower itself is a rotor of the motor, rubber power, spring power, etc., but the type and arrangement means of the power source are disclosed here Of course, it is not limited to.

  The air pumped from the blower 10 must be blown only in the centrifugal direction, and the air pumped and blown collides with the conical surface T inside the fixed wing 1 as shown by arrows in FIGS. As a result, an air pressure difference is generated between the outside of the fixed wings due to the air flow and lift is generated, and the airflow is deflected obliquely downward depending on the inclination angle, and a stress that is a thrust force that raises the flying toy is obtained. .

  Reference numeral 9 in the figure denotes a flap that generates a resistance against the counter-torque of the fixed wing caused by the rotation of the blower when a part of the air blown from the blower 10 to the inner surface of the fixed wing 1 collides. (Three pieces here) are projected at equal angular intervals on the same circumference of the inner surface of the fixed wing (see FIG. 3). The flap 9 offsets the inner peripheral side in the rotation direction of the blower 10 with respect to the outer peripheral side of the fixed wing 1, so that the blown air collides with the surface facing the rotation direction of the blower and the blower rotates. A resistance against the counter-torque of the fixed wing caused by the above is generated.

  In the above flying toy, ascending lift and thrust in the vertical direction are obtained as described above, but in order to obtain thrust in the horizontal direction, a thrust generator such as a propeller is separately provided, and the fixed wing 1 You may carry out by inclining. As the tilting means of the fixed wing 1, a change in the balance of the center of gravity, a change in the balance of the air colliding with the conical surface T of the fixed wing from the blower can be assumed.

1 Fixed wing 3 Top plate (blocking part)
9 Flap 10 Blower 12 Through hole T Conical surface

Claims (2)

A blower comprising a rotating blade that pumps air introduced from the axial flow direction in the centrifugal direction, and a skirt-like fixed blade in which at least the inner surface is concentrically disposed, and the fixed blade A blower is suspended from the inner upper part of the fan so that the air blown in the centrifugal direction collides with the conical surface of the fixed wing, and the upper part of the fixed wing has air that is introduced into the blower from the axial direction. In the flying toy that is closed except for the passage, a plurality of airs blown from the blower to the inner surface of the fixed wing collide with each other to generate a resistance against the counter-torque of the fixed wing caused by the rotation of the blower. The flying toy is characterized in that the flaps are projected at equal angular intervals on the same circumference of the inner surface of the fixed wing. The rotating blade of the blower is a turbofan with a blade between two disks, the disk on the lower side of the fixed wing is closed, and the disk on the upper side of the fixed wing communicates with the through hole provided on the upper side of the fixed wing. The flying toy according to claim 1, wherein a through hole is provided in the center.

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