US20140073216A1 - Flying toy configured to move by wing flapping - Google Patents
Flying toy configured to move by wing flapping Download PDFInfo
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- US20140073216A1 US20140073216A1 US13/775,221 US201313775221A US2014073216A1 US 20140073216 A1 US20140073216 A1 US 20140073216A1 US 201313775221 A US201313775221 A US 201313775221A US 2014073216 A1 US2014073216 A1 US 2014073216A1
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- wing
- wings
- toy
- tension
- rudder
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H27/00—Toy aircraft; Other flying toys
- A63H27/008—Propelled by flapping of wings
Definitions
- a flying toy capable of moving by flapping of wings
- the flying toy comprising a support structure, an actuation mechanism arranged on the support structure and comprising a rotatable crank drive, two flexible wings each comprising a wing base, the two flexible wings being arranged symmetrically with respect to a vertical plane of symmetry of the toy and connected, at the wing bases, to the actuation mechanism, the wing bases being mounted oscillating about axes arranged on both sides of the vertical plane of symmetry of the toy.
- the direction of rotation of the motor 6 depends on the control signal that is sent to it.
- a reduction ratio device can be between the pinion gear 61 and the rotation shaft of the motor 6 .
- the latter is secured to a base 7 attached to the support structure 1 .
- the rudder 5 is pivotally mounted around an axis 52 perpendicular to the plane of the wings 33 a , 33 b .
- the axis 52 is a vertically projecting element of the base 7 , the T-like longitudinal bar forming the rudder 5 being mounted freely in rotation around this axis.
- the engine 6 receives a control signal (to turn right or to left turn)
- the pinion 61 rotates, driving the gear 51 .
- the rudder 5 then pivots either right or left by applying lateral tension on the posterior edges of the wings 33 a , 33 b .
- the ends 50 of the rudder 5 draw an arc whose center is the axis of rotation 52 .
- the switching power of memory shapes wires is preferably controlled by a radio-control remote.
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Abstract
A flying toy capable of moving by flapping of wings includes an actuation mechanism, for the wings, comprising a crank drive rotated by a means providing the driving force, two flexible wings arranged symmetrically with respect to the vertical plane of symmetry of the toy and connected, at the wing bases, to the actuation mechanism. The wing bases are mounted oscillating about axes arranged on both sides of the vertical plane of symmetry of the toy. The toy includes a control means, that receives a control signal indicating a left turn, increases the tension on the right wing and reduces it on the left wing. For a right turn, the opposite action is performed.
Description
- This application is a Continuation-in-part of U.S. patent application Ser. No. 12/830,402 of Edwin VAN RUYMBEKE filed 5 Jul. 2010, for IMPROVEMENT TO A FLYING TOY ABLE TO MOVE BY THE FLAPPING OF WINGS, the contents of which are herein incorporated by reference.
- The invention relates to the general technical field of flying toys, and more particularly those imitating the flight of a bird which they may resemble.
- The patent documents FR 1,604,345 (G. VAN RUYMBEKE) and EP 0,449,922 (G. VAN RUYMBEKE) describe a flying toy of this type comprising:
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- a hollow body having an elongated shape and in the front which is housed an actuation mechanism driven by an elastic strap providing driving force;
- two flexible wings attached, first, to the actuation on the one hand, the activation mechanism and second, on the body;
- a winding system for twisting of the elastic strap motor.
- In this type of flying toy, the actuation mechanism for the wings generally comprises two oscillating levers—or wing bases—connected or designed to be connected, each to a wing spanwise beam on which is attached the front edge of a flexible airfoil constituting the wings of the toy. In principle, the beating of wings suffices to ensure the levitation of the flying toy.
- Several techniques enable turning of these flying toys. The patent documents GB 442,667 (HAENLE), GB 20145.AAD.1910 (EUSTACE), U.S. 2004/155145 (YOSHIJI) or U.S. Pat. No. 1,450,480 (JAMES), teach for example changing the angle of incidence of the wings so that the toy turns right or left.
- Known more particularly, from the patent document EP 1,958,681 (PROXYFLYER), is a flying toy that can turn in a desired direction, using a different drag on the wings. A control means, which receives a control signal indicating a left turn, increases the angle of incidence on the left wing and reduces it on the right wing. For a right turn, the opposite action is performed.
- The wings of this toy have airfoil surfaces that have an increased drag when the angle of incidence increases. In practice, this technique does not enable turning of the toy with great precision.
- Moreover, when the speed of the toy is too high, the controls can be inverted: the increase of the angle of incidence on the right wing (respectively left) drives a steering to the left (respectively right). The control of such a toy can be random.
- Given this state of affairs, a principal objective of the invention is to work out a technique enabling more precise and more effective turning of a flying toy of the type known from the prior art.
- To address the problem above, a flying toy capable of moving by flapping of wings and comprises a support structure, an actuation mechanism, for the wings, arranged on the support structure and comprising a crank drive rotated by a means providing the driving force, two flexible wings arranged symmetrically with respect to the vertical plane of symmetry of the toy and connected, at the wing bases, to the actuation mechanism. The wing bases are mounted oscillating about axes arranged on both sides of the vertical plane of symmetry of the toy. The toy includes a control means, that receives a control signal indicating a left turn, increases the tension on the right wing and reduces it on the left wing, for a right turn, the opposite action is performed.
- According to another aspect of the present invention, there is a method for controlling a flying toy capable of moving by flapping of wings, the toy comprising a support structure, an actuation mechanism, for the wings, arranged on the support structure and comprising a crank drive rotated by a means providing the driving force, two flexible wings arranged symmetrically with respect to the vertical plane of symmetry of the toy and connected, at the wing bases, to the actuation mechanism, the wing bases being mounted oscillating about axes arranged on both sides of the vertical plane of symmetry of the toy. The method comprises increasing the tension on the right wing and reducing it on the left wing, to control a right turn, increasing the tension on the left wing and reducing it on the right wing, to control a left turn.
- According to yet another aspect of the present invention, a flying toy capable of moving by flapping of wings, the flying toy comprising a support structure, an actuation mechanism arranged on the support structure and comprising a rotatable crank drive, two flexible wings each comprising a wing base, the two flexible wings being arranged symmetrically with respect to a vertical plane of symmetry of the toy and connected, at the wing bases, to the actuation mechanism, the wing bases being mounted oscillating about axes arranged on both sides of the vertical plane of symmetry of the toy. The toy includes a control means that, responsive to receiving a control signal indicating a left turn, increases a tension on the right wing while reducing a tension on the left wing thereby effecting a left turn, and that, responsive to receiving a control signal indicating a right turn, increases the tension on the left wing while reducing the tension on the right left wing thereby effecting a right turn, posterior edges of a main airfoil of the wings are attached on a rudder configured to pull laterally on the edges, in a plane of the wings, so as to change the tension of the wings: a lateral traction on the posterior edge of the right wing increases the tension on the right wing and decreases the tension on the left wing, a lateral traction on the posterior edge of the left wing increases the tension on the left wing and decreases the tension on the right wing, wherein the movement of the rudder is controlled by means of a memory shapes wires that, responsive to receiving an electric current, constricts.
- According to yet another aspect of the present invention, there is a method for controlling a flying toy capable of moving by flapping of wings, the toy comprising a support structure, an actuation mechanism arranged on the support structure and comprising a rotatable crank drive, two flexible wings each comprising a wing base, the two flexible wings being arranged symmetrically with respect to a vertical plane of symmetry of the toy and connected, at the wing bases, to the actuation mechanism, the wing bases being mounted oscillating about axes arranged on both sides of the vertical plane of symmetry of the toy, each posterior edges of a main airfoil of the wings is coupled to a memory shape wire that, responsive to receiving an electric current, constricts. The method comprises receiving a control signal, responsive to the control signal indicating a right turn, constricting the memory shape wire coupled to the right wing to reduce the tension on the right wing, and responsive to the control signal indicating a left turn, constricting memory shape wire coupled to the left wing to reduce the tension on the left wing.
- Other advantages and features of the invention will become more apparent upon reading the description of preferred implementation modes which follows, with reference to the accompanying drawings, made by way of indicative and non limiting examples and wherein:
-
FIG. 1 is a schematic top view showing the layout of various components of a toy in accordance with an exemplary embodiment, -
FIG. 2 is an enlarged view of detail D ofFIG. 1 , showing, from above, the tensioning device for the wings, -
FIG. 3 is a front view of the tensioning device for the wings, -
FIG. 4 is a perspective view of the tensioning device for the wings, -
FIGS. 5 a and 5 b show respectively a front view and a top view of a second implementation mode for the spanwise wing beam, -
FIG. 6 is a longitudinal section view showing an example of attachment of a rod to the end of a part of a spanwise wing beam, -
FIG. 7 is a schematic top view showing the layout of various components of a toy in accordance with another exemplary embodiment, -
FIG. 8 is a perspective view of the tensioning device for the wings, -
FIG. 9 is an enlarged view ofFIG. 8 , showing the tensioning device for the wings, -
FIGS. 10 a and 10 b show respectively a front view and a top view of another implementation mode for the spanwise wing beam, -
FIG. 11 is a longitudinal section view showing an example of attachment of a rod to the end of a part of a spanwise wing beam. - The accompanying drawings which are incorporated in and which constitute a part of this specification, illustrate embodiments of the exemplary embodiment and, together with the description, explain the principles of the exemplary embodiment, and additional advantages thereof. Throughout the drawings, corresponding elements are labeled with corresponding reference numbers.
- The flying toy object of a first exemplary embodiment is typically a toy imitating the flight of a bird, whose appearance it has. It may be however any other type of flying toy that moves by flapping of wings, for example having the appearance of an insect or an imaginary winged character.
- This toy is nonetheless remarkable in that a control means, that receives a control signal indicating a left turn, increases the tension on the right wing and reduces it on the left wing, for a right turn, the opposite action being performed. A turn to the right or to the left is controlled by the tension of the opposite wing.
- Referring to
FIG. 1 , the toy object of the exemplary embodiment comprises a support structure 1 on which are arranged the various components of themechanism 2 of driving wings andsteering rudder 5. A hollow body (not shown) having elongated shape, evoking the body of a bird, and typically made of plastic, will cover the support structure 1 in order to conceal the various components of the drive mechanism of the wings and rudder. - According to
FIG. 1 , theactuation mechanism 2 ofwings actuation mechanism 2 enables communication of identical oscillations to thewings wing actuation mechanism 2 comprises adrive crank 20 rotated bymeans 4 providing the driving force. Themeans 4 providing the driving force to thecrank 20 can be elastic. In this case, a winding device enabling twisting of the elastic will be provided. This type of elastic system providing power to thecrank 20 is for example described inFIG. 5 of the document EP 0,449,922. However, themeans 4 providing the driving force is preferably an electric motor 40 coupled to a reduction gear 41. The electric motor 40 is of the type known to the person of skill in the art, powered by battery or by cell and whose operation can be controlled by a remote control of the radio-control type. By actuating this dedicated control, the user will transmit a control signal causing the flapping of the wings to drive the flight of the toy or to the contrary stopping the beating during the landing and/or to simulate periods of gliding. Theactuation mechanism 2 ofwings - The two
flexible wings actuation mechanism 2. The bases of the wings are mounted oscillating in the two directions aboutaxes bases main airfoil - The spanwise wing beams 32 a, 32 b have a diameter of approximately 0.6 mm and are typically made of plastic or carbon. However, to further lighten the structure of the toy while retaining good rigidity, the spanwise wing beams 32 a, 32 b are made wholly or partially of liquid crystal polymer (LCP) combined with carbon fibers.
- In the implementation modes shown in
FIGS. 5 a and 5 b, the spanwise wing beams 32 a, 32 b are formed from afirst part 3210 inserted into the wing bases 30 a, 30 b. This first part can have a tapered section at the end of which is attached a rod 3220 (FIG. 5 a). In a second implementation mode (FIGS. 1 and 5 b), the first part of 3210 has a “gooseneck” curvature type oriented toward the front of the toy enabling an esthetic closer to a bird, without losing efficiency. This configuration also enables displacement of the center position of the airfoil towards the front of the toy, which enables modification of the flight attitude without displacing the center of gravity. - Advantageously, the rods 3200 are mounted pivoting, along their longitudinal axis, in the
first parts 3210. Therods 3220 may also be mounted sliding in thefirst parts 3210. - Referring to
FIG. 6 , therods 3220 are tightly fitted and/or cemented in asheath 300. The latter is made of a semi-rigid plastic. Thesheath 300 covers therods 3220 over a length of approximately 1 cm in order to consolidate their base and reduce the fragility in this area. - The
sheath 300 is advantageously mounted mobile in rotation, and possibly sliding, in asleeve 301 itself tightly fitted and/or cemented to theend 32100 of thefirst part 3210. During the flight of the toy, therods 3220 can be subject to longitudinal axis torsional stresses. However, because the carbon rods have poor torsional rigidity, a non negligible risk of fracture exists. The degree of freedom of rotation of thesheath 300 cancels these torsional stresses and reduces the risks of fracture. - In practice, when they are manufactured and/or delivered, the
rods 3220 are never perfectly straight but have a certain curvature. In these conditions, if therods 3220 are rigidly connected to thefirst parts 3210, the curvatures of eachwing sheath 300 enables natural restoration of the curvature of therods 3220 toward the rear of toy, symmetrically with respect to the plane P. - The technique used in the exemplary embodiment and enabling rotation of the toys toward the right or toward the left will now be described in more detail with reference to
FIGS. 1-4 . In accordance with the exemplary embodiment, a control means 5, that receives a control signal indicating a left turn, increases the tension on theright wing 33 a and reduces it on theleft wing 33 b. For a right turn, the control means 5 increases the tension on theleft wing 33 b and reduces it on theright wing 33 a. A turn to the right or to the left is controlled by the tensioning of the opposite wing. - Referring to
FIG. 1 , the posterior edges of themain airfoil rudder 5 configured to pull laterally on the edges, in the plane of the wings (plane ofFIG. 1 or 2 and perpendicular to the plane P), so as to change the tension of the wings: -
- a lateral traction on the posterior edge of the
right wing 33 a increases tension on the right wing and decreases the tension on theleft wing 33 b: the toy turns left, - a lateral traction on the posterior edge of the
left wing 33 b increases the tension on the left wing and decreases the tension on theright wing 33 a: the toy turns right.
- a lateral traction on the posterior edge of the
- Referring to
FIG. 2 , therudder 5 has the shape of a T of which the ends of the crossbar are attached to the posterior edges of themain airfoil piece 330 more rigid than the airfoil and cemented on the airfoil and that comprises a hole that fits on a ball-shaped pin 50 (FIG. 3 ). The T-like longitudinal bar is terminated by agear 51 meshing with apinion 61 driven by an electric motor 6 (FIG. 4 ). The latter is of the type known to the person of skill in the art, powered by battery or by cell and whose operation is controlled by a remote control of the radio-control type. The direction of rotation of themotor 6 depends on the control signal that is sent to it. A reduction ratio device can be between thepinion gear 61 and the rotation shaft of themotor 6. The latter is secured to abase 7 attached to the support structure 1. Therudder 5 is pivotally mounted around anaxis 52 perpendicular to the plane of thewings axis 52 is a vertically projecting element of thebase 7, the T-like longitudinal bar forming therudder 5 being mounted freely in rotation around this axis. In this configuration, when theengine 6 receives a control signal (to turn right or to left turn), thepinion 61 rotates, driving thegear 51. Therudder 5 then pivots either right or left by applying lateral tension on the posterior edges of thewings rudder 5 draw an arc whose center is the axis ofrotation 52. - Referring to
FIGS. 2 and 4 , areturn spring 8 enables automatic restoration of therudder 5 in a neutral position where no tension is exerted on the posterior edges of themain airfoil spiral spring 8 attached on thebase 7 and from which the legs are arranged on both sides of the T-like longitudinal bar forming therudder 5, is used. Thespring 8 is pretensioned in the neutral position, the legs of thespring 8 being held apart by anelement 71 of thebase 7. At rest, therudder 5 is in a neutral position, i.e. extending from the support structure 1. When therudder 5 leaves this position, the legs of thespring 8 tend to return it into the neutral position. Thespring 8 having a pre-tension and resting on theelement 71, therudder 5 is positively returned to the neutral, compensating for the residual friction of the reduction ratio device. This enables the flying toy to follow a straight path when themotor 6 is stopped. - In an implementation variation not shown, the
rudder 5 is mounted mobile in translation in a direction parallel to the plane of thewings main airfoil rudder 5 comprising a longitudinal control rod with ends to which are attached the posterior edges of themain airfoil wings electric motor 6. The rotation of the toothed pinion drives the translation to the right or to the left ofrudder 5 and alters de facto the tension of thewings rudder 5 in a neutral position where no tension is exerted on the posterior edges of themain airfoil - Referring to
FIGS. 1 and 4 , the posterior part of the toy is provided with atail airfoil 9 arranged symmetrically with respect to the vertical plane of symmetry P of the toy. Thistail airfoil 9 can be orientable in a vertical plane so as to adjust the type of flight: when the tail is raised, a slow flight is obtained and when the tail is lowered, practically to the horizontal, a fast flight is obtained. The inclination of thetail 9 can be automatically controlled by means of a radio-controlled motor. However, the angle of inclination of thetail 9 can be manually adjusted. To do this, and referring toFIG. 4 , the end of thetail 9 is pivotally mounted around a horizontal axis ofrotation 90. A latchingdevice 91 attached on thebase 7 enables maintenance in position of thetail 9 corresponding to a desired angle of inclination “i”. - In summary, according to a preferred implementation mode, the posterior edges of the main airfoil of the wings are attached on a rudder configured to pull laterally on the edges, in the plane of the wings, so as to change the tension of the wings:
-
- a lateral traction on the posterior edge of the right wing increases the tension on the right wing and decreases the tension on the left wing,
- a lateral traction on the posterior edge of the left wing increases the tension on the left wing and decreases the tension on the right wing.
- Advantageously, the rudder is mounted pivoting around an axis perpendicular to the plane of the wings, the pivoting of the rudder causing a lateral traction on the posterior edges of the main airfoil of the wings.
- In an implementation variation, the rudder is mounted mobile in translation in a direction parallel to the plane of the wings, the displacement of the rudder causing a lateral traction on the posterior edges of the main airfoil of the wings.
- The movement of the rudder preferably is controlled via a radio-controlled motor.
- To enable the flying toy to follow a straight path in the absence of stress on the wings, a return spring enables automatic restoration of the rudder into a neutral position where no tension is exerted on the posterior edges of the main airfoil of the wings.
- According to another advantageous feature of the exemplary embodiment:
-
- the radio-controlled motor is provided with a reduction ratio device,
- and wherein the spring is pretensioned in the neutral position, the legs of the spring being held apart by an element, the pre-tension enabling restoration of the rudder positively into the neutral position, compensating for the residual frictions of the reduction ratio device.
- Preferably, the wings comprise spanwise wing beams connected to the wing bases, the spanwise beams being formed from a first part inserted into the wing bases and at the end of which is attached a rod, the latter being pivotally mounted, about its longitudinal axis, in the first part.
- The rods can be tightly fitted and/or cemented in a sheath, the latter covering the rods so as to consolidate their base and decrease the fragility at this area.
- Referring to
FIG. 7 , the toy object of a second exemplary embodiment comprises a support structure 1 on which are arranged the various components of themechanism 2 of driving wings andsteering rudder 5. A hollow body (not shown) having elongated shape, evoking the body of a bird, and typically made of plastic, will cover the support structure 1 in order to conceal the various components of the drive mechanism of the wings and rudder. - According to
FIG. 7 , theactuation mechanism 2 ofwings actuation mechanism 2 enables communication of identical oscillations to thewings wing actuation mechanism 2 comprises a drive crank 20 rotated bymeans 4 providing the driving force. Themeans 4 providing the driving force to the crank 20 can be elastic. In this case, a winding device enabling twisting of the elastic will be provided. This type of elastic system providing power to thecrank 20 is for example described inFIG. 5 of the document EP 0,449,922. However, themeans 4 providing the driving force is preferably an electric motor 40 coupled to a reduction gear 41. The electric motor 40 is of the type known to the person of skill in the art, powered by battery or by cell and whose operation can be controlled by a remote control of the radio-control type. By actuating this dedicated control, the user will transmit a control signal causing the flapping of the wings to drive the flight of the toy or to the contrary stopping the beating during the landing and/or to simulate periods of gliding. - The two
flexible wings actuation mechanism 2. The bases of the wings are mounted oscillating in the two directions aboutaxes bases main airfoil - The spanwise wing beams 32 a, 32 b have a diameter of approximately 0.6 mm and are typically made of plastic or carbon. However, to further lighten the structure of the toy while retaining good rigidity, the spanwise wing beams 32 a, 32 b are made wholly or partially of liquid crystal polymer combined with carbon fibers.
- In the implementation modes shown in
FIGS. 10 a and 10 b, the spanwise wing beams 32 a, 32 b are formed from afirst part 3210 inserted into the wing bases 30 a, 30 b. This first part can have a tapered section at the end of which is attached a rod 3220 (FIG. 10 a). In another implementation mode (FIGS. 7 and 10 b), the first part of 3210 has a “gooseneck” curvature type oriented toward the front of the toy enabling an esthetic closer to a bird, without losing efficiency. This configuration also enables displacement of the center position of the airfoil towards the front of the toy, which enables modification of the flight attitude without displacing the center of gravity. - Advantageously, the rods 3200 are mounted pivoting, along their longitudinal axis, in the
first parts 3210. Therods 3220 may also be mounted sliding in thefirst parts 3210. - Referring to
FIG. 11 , therods 3220 are tightly fitted and/or cemented in asheath 300. The latter is made of a semi-rigid plastic. Thesheath 300 covers therods 3220 over a length of approximately 1 cm in order to consolidate their base and reduce the fragility in this area. - The
sheath 300 is advantageously mounted mobile in rotation, and possibly sliding, in asleeve 301 itself tightly fitted and/or cemented to theend 32100 of thefirst part 3210. - A technique used in the second exemplary embodiment and enabling rotation of the toys toward the right or toward the left will now be described in more detail with reference to
FIGS. 7-9 . A control means 5, that receives a control signal indicating a left turn, increases the tension on theright wing 33 a and reduces it on theleft wing 33 b. For a right turn, the control means 5 increases the tension on theleft wing 33 b and reduces it on theright wing 33 a. A turn to the right or to the left is controlled by the tensioning of the opposite wing. - Referring to
FIG. 7 , the posterior edges of themain airfoil rudder 5 configured to pull laterally on the edges, in the plane of the wings (plane ofFIG. 7 and perpendicular to the plane P), so as to change the tension of the wings: - a lateral traction on the posterior edge of the
right wing 33 a increases tension on the right wing and decreases the tension on theleft wing 33 b: the toy turns left, - a lateral traction on the posterior edge of the
left wing 33 b increases the tension on the left wing and decreases the tension on theright wing 33 a: the toy turns right. - Referring to
FIGS. 7 , 8, and 9, therudder 5 has the shape of a T of which the ends of the crossbar are attached to the posterior edges of themain airfoil FIGS. 8 and 9 ). Therudder 5 is pivotally mounted around anaxis 52 perpendicular to the plane of thewings axis 52 is a vertically projecting element of the support structure 1, the T-like longitudinal bar forming therudder 5 being mounted freely in rotation around this axis. - Each side of the
rudder 5 is attached to amemory shape wire Memory shape wire Wires - Each
wire first end second end first end rudder 5. Thesecond end actuation mechanism 2. To heat such wire, it is sufficient to apply an electric current to the wire. - First ends 610 a, 610 b are electrically connected to the bottom (for example positive bottom) of a
battery 7, or a cell. Second ends 611 a, 611 b are also electrically connected to the bottom (for example negative bottom) of thebattery 7, or cell. Accordingly, by connecting ends 610 a-611 a, respectively 610 b-611 b, to the bottom of thebattery 7, thewire 61 a, respectively 61 b, electrical energy will be provided to such wire. Like a resistor, thewire -
Battery 7, or a cell, is preferably rechargeable and can have a voltage capacity of approximately 0.5 volts to 12 volts, and can be an alkaline battery, a lithium battery, a nickel-cadmium battery, or any other battery of like voltage capacity. - The switching power of each wire is controlled by a
remote control 70 of the radio-control type. Theremote control 70 is configured with thebattery 7 such that when awire other wire battery 7, or cell, is provided with a switch means such thatwires Remote control 70 controls such switch means. Referring toFIGS. 8 and 9 , theremote control 70 and thebattery 7 are mounted into a printedcircuit board 700 positioned between the twowires - The direction of rotation of the
rudder 5 depends on the control signal that is sent toremote control 70. When theremote control 70 receives a control signal, one of thewire memory shape wire 61 a, coupled to theright wing 33 a, is constricted (while no action is performed on thememory shape wire 61 b coupled to theleft wing 33 b) to force therudder 5 to rotate on the right side, which have to effect to reduce the tension on theright wing 33 a and, at same time, increase the tension on theleft wing 33 b. For a left turn,memory shape wire 61 b coupled to theleft wing 33 b is constricted (while no action is performed on thememory shape wire 61 a coupled to theright wing 33 a) to force therudder 5 to rotate on the left side, which have to effect to reduce the tension on theleft wing 33 b and, at same time, increase the tension on theright wing 33 a. - The
rudder 5 then pivots either right or left by applying lateral tension on the posterior edges of thewings rudder 5 draw an arc whose center is the axis ofrotation 52. - Referring to
FIG. 8 , areturn spring rudder 5 in a neutral position where no tension is exerted on the posterior edges of themain airfoil spiral spring second end wires actuation mechanism 2. Thespring rudder 5 is in a neutral position, i.e. extending from the support structure 1. When therudder 5 leaves this position, thespring spring rudder 5 is positively returned to the neutral position. This enables the flying toy to follow a straight path when theremote control 70 is stopped or when thebattery 7 is not energized. - In an implementation variation not shown, the
rudder 5 is mounted mobile in translation in a direction parallel to the plane of thewings main airfoil rudder 5 comprising a longitudinal control rod with ends to which are attached the posterior edges of themain airfoil wings wires Constricting wires rudder 5 and alters de facto the tension of thewings rudder 5 in a neutral position where no tension is exerted on the posterior edges of themain airfoil - Referring to
FIGS. 7 , 8, and 9, the posterior part of the toy is provided with atail airfoil 9 arranged symmetrically with respect to the vertical plane of symmetry P of the toy. Thistail airfoil 9 can be orientable in a vertical plane so as to adjust the type of flight: when the tail is raised, a slow flight is obtained and when the tail is lowered, practically to the horizontal, a fast flight is obtained. The inclination of thetail 9 can be automatically controlled by means of a radio-controlled motor. However, the angle of inclination of thetail 9 can be manually adjusted. To do this, the end of thetail 9 is pivotally mounted around a horizontal axis ofrotation 90. A latchingdevice 91 attached on the support structure 1 enables maintenance in position of thetail 9 corresponding to a desired angle of inclination. - In summary, according to the second exemplary embodiment, a flying toy comprises:
- a support structure,
- an actuation mechanism arranged on the support structure and comprising a rotatable crank drive,
- two flexible wings each comprising a wing base, the two flexible wings being arranged symmetrically with respect to a vertical plane of symmetry of the toy and connected, at the wing bases, to the actuation mechanism, the wing bases being mounted oscillating about axes arranged on both sides of the vertical plane of symmetry of the toy, and
- a control means that, responsive to receiving a control signal indicating a left turn, increases a tension on the right wing while reducing a tension on the left wing thereby effecting a left turn, and that, responsive to receiving a control signal indicating a right turn, increases the tension on the left wing while reducing the tension on the right left wing thereby effecting a right turn,
- posterior edges of a main airfoil of the wings are attached on a rudder configured to pull laterally on the edges, in a plane of the wings, so as to change the tension of the wings:
- a lateral traction on the posterior edge of the right wing increases the tension on the right wing and decreases the tension on the left wing,
- a lateral traction on the posterior edge of the left wing increases the tension on the left wing and decreases the tension on the right wing,
- wherein the movement of the rudder is controlled by means of a memory shapes wires that, responsive to receiving an electric current, constricts.
- Accordingly to the second exemplary embodiment, control means that receives a control signal indicating a left turn constricts memory shape wire coupled to the left wing to reduce the tension on the left wing, the tension on the left wing being preferably increased at that time. For a right turn, the opposite action is performed.
- Advantageously, the memory shapes wires are copper-aluminium-nickel alloys or nickel-titanium alloys.
- The switching power of memory shapes wires is preferably controlled by a radio-control remote.
- Advantageously, the rudder is mounted pivoting around an axis perpendicular to the plane of the wings, the pivoting of the rudder causing a lateral traction on the posterior edges of the main airfoil of the wings.
- In an implementation variation, the rudder is mounted mobile in translation in a direction parallel to the plane of the wings, the displacement of the rudder causing a lateral traction on the posterior edges of the main airfoil of the wings.
- To enable the flying toy to follow a straight path in the absence of stress on the wings, a return spring enables automatic restoration of the rudder into a neutral position where no tension is exerted on the posterior edges of the main airfoil of the wings.
- Preferably, the wings comprise spanwise wing beams connected to the wing bases, the spanwise beams being formed from a first part inserted into the wing bases and at the end of which is attached a rod, the latter being pivotally mounted, about its longitudinal axis, in the first part.
- The rods can be tightly fitted and/or cemented in a sheath, the latter covering the rods so as to consolidate their base and decrease the fragility at this area.
- While preferred embodiments of the present exemplary embodiment have been described above, it is to be understood that variations and modifications will be apparent to those skilled in the art without departing from the scope and spirit of the present exemplary embodiment. The scope of the present exemplary embodiment, therefore, is to be determined solely by the following claims.
Claims (20)
1. A flying toy capable of moving by flapping of wings and comprising:
a support structure (1),
an actuation mechanism (2), for the wings, arranged on the support structure (1) and comprising a crank drive (20) rotated by a means (4) providing the driving force,
two flexible wings (3 a, 3 b) arranged symmetrically with respect to the vertical plane of symmetry (P) of the toy and connected, at the wing bases (30 a, 30 b), to the actuation mechanism (2), the wing bases being mounted oscillating about axes (31 a, 31 b) arranged on both sides of the vertical plane of symmetry of the toy,
characterized by the fact that a control means (5), that receives a control signal indicating a left turn, increases the tension on the right wing and reduces it on the left wing, for a right turn, the opposite action is performed.
2. A toy according to claim 1 , wherein the posterior edges of the main airfoil (33 a, 33 b) of the wings (3 a, 3 b) are attached on a rudder (5) configured to pull laterally on the edges, in the plane of the wings, so as to change the tension of the wings:
a lateral traction on the posterior edge of the right wing increases the tension on the right wing and decreases the tension on the left wing,
a lateral traction on the posterior edge of the left wing increases the tension on the left wing and decreases the tension on the right wing.
3. A toy according to claim 2 , wherein the rudder (5) is mounted pivoting around an axis (52) perpendicular to the plane of the wings (3 a, 3 b), the pivoting of the rudder causing a lateral traction on the posterior edges of the main airfoil (33 a, 33 b) of the wings.
4. A toy according to claim 2 , wherein the rudder (5) is mounted movable in translation in a direction parallel to the plane of the wings (3 a, 3 b), the displacement of the rudder causing a lateral traction on the posterior edges of the main airfoil (33 a, 33 b) of the wings.
5. A toy according to claim 2 , wherein the movement of the rudder (5) is controlled via a radio-controlled motor (6).
6. A toy according to claim 2 , wherein a return spring (8) enables restoration of the rudder (5) in a neutral position where no traction is exerted on the posterior edges of the main airfoil (33 a, 33 b) of the wings (3 a, 3 b).
7. A toy according to claim 6 combined with claim 5 , wherein:
the radio-controlled motor (6) is provided with reduction ratio device,
and wherein the spring (8) is pretensioned in the neutral position, the legs of the spring being held apart by an element (71), the pre-tension enabling restoration of the rudder (5) positively into the neutral position, compensating for the residual frictions of the reduction ratio device.
8. A toy according to claim 1 , wherein the wings (3 a, 3 b) comprise spanwise wing beams (32 a, 32 b) connected to the wing bases (30 a, 30 b), the spanwise beams being formed from a first part (3210) inserted into the wing bases and at the end of which is attached a rod (3220), the latter being pivotally mounted, about its longitudinal axis, in the first part.
9. A toy according to claim 8 , wherein the rods (3220) are tightly fitted and/or cemented in a sheath (300), the latter covering the rods so as to consolidate their base and decrease the fragility at this area.
10. A method for controlling a flying toy capable of moving by flapping of wings, the toy comprising:
a support structure (1),
an actuation mechanism (2), for the wings, arranged on the support structure (1) and comprising a crank drive (20) rotated by a means (4) providing the driving force,
two flexible wings (3 a, 3 b) arranged symmetrically with respect to the vertical plane of symmetry (P) of the toy and connected, at the wing bases (30 a, 30 b), to the actuation mechanism (2), the wing bases being mounted oscillating about axes (31 a, 31 b) arranged on both sides of the vertical plane of symmetry of the toy,
the method comprising:
increasing the tension on the right wing and reducing it on the left wing, to control a right turn,
increasing the tension on the left wing and reducing it on the right wing, to control a left turn.
11. A flying toy configured to move by flapping of wings, the flying toy comprising:
a support structure,
an actuation mechanism arranged on the support structure and comprising a rotatable crank drive,
two flexible wings each comprising a wing base, the two flexible wings being arranged symmetrically with respect to a vertical plane of symmetry of the toy and connected, at the wing bases, to the actuation mechanism, the wing bases being mounted oscillating about axes arranged on both sides of the vertical plane of symmetry of the toy,
a control means that, responsive to receiving a control signal indicating a left turn, increases a tension on the right wing while reducing a tension on the left wing thereby effecting a left turn, and that, responsive to receiving a control signal indicating a right turn, increases the tension on the left wing while reducing the tension on the right left wing thereby effecting a right turn,
posterior edges of a main airfoil of the wings are attached on a rudder configured to pull laterally on the edges, in a plane of the wings, so as to change the tension of the wings:
a lateral traction on the posterior edge of the right wing increases the tension on the right wing and decreases the tension on the left wing,
a lateral traction on the posterior edge of the left wing increases the tension on the left wing and decreases the tension on the right wing,
wherein the movement of the rudder is controlled by means of a memory shapes wires that, responsive to receiving an electric current, constricts.
12. A toy according to claim 11 , wherein the memory shapes wires are copper-aluminium-nickel alloys.
13. A toy according to claim 11 , wherein the memory shapes wires are nickel-titanium alloys.
14. A toy according to claim 11 , wherein the switching power of memory shapes wires is controlled by a radio-control remote.
15. A toy according to claim 11 , wherein the rudder is mounted pivoting around an axis perpendicular to the plane of the wings, the pivoting of the rudder causing a lateral traction on the posterior edges of the main airfoil of the wings.
16. A toy according to claim 11 , wherein the rudder is mounted movable in translation in a direction parallel to the plane of the wings, a displacement of the rudder causing a lateral traction on the posterior edges of the main airfoil of the wings.
17. A toy according to claim 11 , wherein a return spring enables restoration of the rudder in a neutral position where no traction is exerted on the wings.
18. A toy according to claim 11 , wherein the wings comprise spanwise wing beams connected to the wing bases, the spanwise beams being formed from a first part inserted into the wing bases and at the end of which is attached a rod, the latter being pivotally mounted, about its longitudinal axis, in the first part.
19. A toy according to claim 12 , wherein the rods are tightly fitted and/or cemented in a sheath, the latter covering the rods so as to consolidate their base and decrease the fragility at this area.
20. A method for controlling a flying toy configured to move by flapping of wings, the toy comprising:
a support structure,
an actuation mechanism arranged on the support structure and comprising a rotatable crank drive,
two flexible wings each comprising a wing base, the two flexible wings being arranged symmetrically with respect to a vertical plane of symmetry of the toy and connected, at the wing bases, to the actuation mechanism, the wing bases being mounted oscillating about axes arranged on both sides of the vertical plane of symmetry of the toy,
each posterior edges of a main airfoil of the wings is coupled to a memory shape wire that, responsive to receiving an electric current, constricts,
the method comprising:
receiving a control signal,
responsive to the control signal indicating a right turn, constricting the memory shape wire coupled to the right wing to reduce the tension on the right wing,
responsive to the control signal indicating a left turn, constricting memory shape wire coupled to the left wing to reduce the tension on the left wing.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/775,221 US20140073216A1 (en) | 2010-07-05 | 2013-02-24 | Flying toy configured to move by wing flapping |
US13/902,790 US20140162524A1 (en) | 2010-07-05 | 2013-05-25 | Flying toy configured to move by wing flapping |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/830,402 US8382546B2 (en) | 2010-07-05 | 2010-07-05 | Flying toy able to move by the flapping of wings |
US13/775,221 US20140073216A1 (en) | 2010-07-05 | 2013-02-24 | Flying toy configured to move by wing flapping |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/830,402 Continuation-In-Part US8382546B2 (en) | 2010-07-05 | 2010-07-05 | Flying toy able to move by the flapping of wings |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/902,790 Continuation-In-Part US20140162524A1 (en) | 2010-07-05 | 2013-05-25 | Flying toy configured to move by wing flapping |
Publications (1)
Publication Number | Publication Date |
---|---|
US20140073216A1 true US20140073216A1 (en) | 2014-03-13 |
Family
ID=50233719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/775,221 Abandoned US20140073216A1 (en) | 2010-07-05 | 2013-02-24 | Flying toy configured to move by wing flapping |
Country Status (1)
Country | Link |
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US (1) | US20140073216A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113998104A (en) * | 2021-12-02 | 2022-02-01 | 西北工业大学深圳研究院 | Flapping wing aircraft wing capable of hovering and having bionic wing rib form and shape |
CN114148490A (en) * | 2021-11-29 | 2022-03-08 | 海鹰企业集团有限责任公司 | Flexible wing towed body with foldable function |
-
2013
- 2013-02-24 US US13/775,221 patent/US20140073216A1/en not_active Abandoned
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114148490A (en) * | 2021-11-29 | 2022-03-08 | 海鹰企业集团有限责任公司 | Flexible wing towed body with foldable function |
CN113998104A (en) * | 2021-12-02 | 2022-02-01 | 西北工业大学深圳研究院 | Flapping wing aircraft wing capable of hovering and having bionic wing rib form and shape |
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