Information
-
Patent Grant
-
6688936
-
Patent Number
6,688,936
-
Date Filed
Wednesday, March 28, 200123 years ago
-
Date Issued
Tuesday, February 10, 200421 years ago
-
Inventors
-
-
Examiners
- Banks; Derris H.
- Cegielnik; Urszula M
-
CPC
-
US Classifications
Field of Search
US
- 446 37
- 446 175
- 446 454
- 446 456
-
International Classifications
-
Abstract
The rotating toy in accordance with the present invention includes a hub having an outer portion rotatably connected to an inner portion. At least three rods extending outwardly from the hub to connect to an outer ring. A motor operably connected to a propeller is further disposed on each rob between the hub and the outer ring. In addition the rods are positioned such that each is offset by the same predetermined angle. When operating, the propellers spin in a first direction exerting a reaction torque in the opposite direction causing the outer portion to rotate in the opposite direction. The inner portion includes a plurality of legs with vanes that protruded outwardly such that the downward moving air is deflected causing the inner portion not to rotate. A tether attached to a control box and the rotating toy communicates a drive voltage to each motor. The control box further includes a means for determining the orientation of the motors at a specified point of reference thereby permitting a user to change the direction of the rotating toy in reference to person operating the toy.
Description
FIELD OF THE INVENTION
This invention relates generally to toys and more particularly to rotating toys with directional controls.
BACKGROUND OF THE INVENTION
Most vertical takeoff and landing aircraft rely on gyro stabilization systems to remain stable in hovering flight. For instance, applicant's previous U.S. Pat. No. 5,971,320 and International PCT application WO 99/10235 discloses a helicopter with a gyroscopic rotor assembly. The helicopter disclosed therein further uses a yaw propeller mounted on the frame of the body to control the orientation or yaw of the helicopter. However, different characteristics are present when the body of the toy, such as a flying saucer model, rotates. First, gyro stabilization systems may not be necessary when the body rotates, for example, see U.S. Pat. Nos. 5,297,759 to Tilbor et al.; 5,634,839 and 5,672,086 to Dixon; and 5,971,320 to Jeymyn et al.
Second, when the entire toy rotates the toy loses an orientation reference in which directional control inputs from a remote position can be received and translated into actual directional movement of the saucer. In a helicopter, airplane, or “aircraft”, the aircraft itself predetermines a specific orientation defined in the nose of the aircraft. In such circumstances a user pushing a joystick controller forwards (or pushing a forwards button) directs the aircraft to travel forwards from its point of reference, similar directional controls are found in conventional remote controlled vehicles. However, when a aircraft completely rotates such as a flying saucer or any other rotating toy, the toy loses its orientation as soon as it begins to spin, making directional control difficult to implement. For example, U.S. Pat. No. 5,429,542 to Britt, Jr. as well as U.S. Pat. No. 5,297,759 to Tilbor et al. disclose rotary models or aircrafts but only address movement in an upwards, downwards or spinning direction; and U.S. Pat. Nos. 5,634,839 and 5,672,086 to Dixon discuss the use of a control signal to direct the rotating aircraft towards or away from the user, thus requiring the user to move about the rotating aircraft to the left or right if the user wants the saucer to move towards that particular direction. Implementing such directional controlling schemes in a closed environment such as a house makes controlling the aircraft extremely difficult.
In addition flying saucer models that entirely rotate prevent the rotating toy to have landing gear. For example, U.S. Pat. Nos. 5,297,759 to Tilbor et al.; 5,634,839 and 5,672,086 to Dixon; and 5,429,542 to Britt, Jr. do not include landing gear and as such must land directly on the bottom portion of the rotating aircraft. While it is plausible to have a landing gear on a toy on a helicopter, such as disclosed in U.S. Pat. No. 5,971,320 to Jermyn et al., the entire body of the helicopter does not rotate only the propeller portion rotates.
A need therefore exists to provide a rotating toy, preferably a rotating flying model that includes the means to achieve complete directional control from the perspective of the user. A need also exists to provide a means to land the rotating flying toy on a landing gear that is attached to a substantially non-rotating portion without have to stop the rotating of the toy.
SUMMARY OF THE INVENTION
In accordance with the present invention a rotating toy is provided and includes a hub defined by an outer portion rotatably connected by a substantially frictionless bearing to an inner portion. Extending outwardly from the outer portion is at least three rods offset from each other by a predetermined angle. Connected to the ends of the three rods is an outer ring and disposed on each rod between the hub and the outer ring is a rotary device, which includes a motor and propeller. When operating, the propellers rotate displacing air to generate lift and cause a reaction torque rotating the outer portion, rods, motors and outer ring. In addition, a plurality of legs extends downwardly from the inner portion of the hub in order to support the rotating toy, when the toy is on a surface. Each leg includes a vane protruding outwardly into the downwardly displaced air such that the vanes tend to drive the inner portion of the hub in a direction opposite of the outer portion. This causes the inner portion to be substantially non-rotating. The rotating toy further includes a means for determining a directional point of reference for the motors when the toy is rotating and includes a means for individually controlling the speed of the motors such that the rotating toy may travel in a specified direction. The rotating toy includes a tether that attaches a control box to the non-rotating portion of the rotating toy.
The toy also includes a means to remotely supply a drive voltage through the tether to each motor. The drive voltage is controlled through a throttle controller on the control box, and the amount of the drive voltage or amplitude of the drive voltage is applied uniformly to each motor, such that the propellers on each motor will rotate at the same rate. This will in turn permit the saucer to raise or lower substantially in a constant horizontal plane, meaning at a level plane and not tilted to one side. A cyclic or directional controller also on the control box controls the direction in which the saucer will travel, forwards, backwards, left or right. By adding a separate and predetermined sinusoidal wave to the drive voltage of each motor the resultant thrust vector of the saucer can be adjusted, causing the saucer to travel in a specified direction. In addition, the amplitude of the sinusoidal waves can be adjusted to correspond to the amount of movement in the directional controls, allowing the user to control the rate in which the saucer moves in that direction.
In another aspect of the present invention, the tether is attached through a feedback system that determines whether the toy is flying away from a center position. The feedback system sends a signal to a microprocessor that adjusts the amplitude and the beginning phase angle such that the rotating toy will substantially return to its center position.
In yet another aspect of the present invention, the adjustment of amplitude and the beginning phase angle may be incorporated in other rotating toys, such as ground-based toys using wireless means to communicate the adjustments.
Numerous other advantages and features of the invention will become readily apparent from the following detailed description of the invention and the embodiments thereof, from the claims, and from the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
A fuller understanding of the foregoing may be had by reference to the accompanying drawings, wherein:
FIG. 1
is a perspective view of a flying rotating toy in accordance with the preferred embodiment of the present invention;
FIG. 2
is a side sectional view of
FIG. 1
, illustrating the connection between the non-rotating and rotating portions of the saucer and the position of the IR emitters;
FIG. 3
is a schematic drawing of the connection between the control box and the three motors;
FIG. 4
is a top view of the saucer from
FIG. 1
, illustrating the three motors and the quadrants of the saucer in relation to the control box when the IR emitters are aligned with the IR sensor;
FIGS. 5
a
-
5
d
illustrate the sinusoidal waves generated by the microprocessor in order to move the saucer in a direction specified by the cyclic or directional joystick on the control box;
FIG. 6
a
is a side view of the saucer including a declinator and base unit;
FIG. 6
b
is a side view of the saucer from
FIG. 6
a
when the saucer has moved off from its center position above the base unit;
FIG. 6
c
is an enlarged view of the declinator when the saucer has moved off center as shown in
FIG. 6
b;
FIGS. 7
a
and
7
b
illustrate another embodiment of the saucer incorporating a hall effect sensor and a pair of magnets in creating a feedback system; and
FIG. 8
is a side view of another embodiment of a ground based rotating toy implementing the IR control system that was described in the previous embodiments.
DETAILED DESCRIPTION OF THE EMBODIMENT
While the invention is susceptible to embodiments in many different forms, there are shown in the drawings and will be described herein, in detail, the preferred embodiments of the present invention. It should be understood, however, that the present disclosure is to be considered an exemplification of the principles of the invention and is not intended to limit the spirit or scope of the invention and/or claims of the embodiments illustrated.
Referring first to
FIG. 1
, a rotating toy in accordance with the present invention is shown as a flying saucer embodiment and is generally referenced to as
10
. The saucer
10
includes a hub
12
that supports at least three rods
14
, which substantially extend outwardly from the hub
12
for a predetermined distance along the same plane. The rods
14
connect to and support an outer ring
16
. The outer ring
16
is preferably made from a soft foam, to protect the propellers and provide a bumper if the saucer
10
were to hit an object, such as a wall. The outer ring
16
also provides additional mass far from the center of rotation increasing the stability by increasing the gyroscope effect.
Positioned on each rod
14
, approximately in the center between the hub
12
and the outer ring
16
, is a rotary device
18
that includes a motor
20
operably connected to a control means (discussed in greater detail below) by various wiring that may be contained and hidden within the rods
14
. Coupled to each motor
20
is a propeller
22
inclined by approximately 4°, such that when the rotary devices
18
are operating, the rotating propellers
22
cause the saucer
10
to rotate in the opposite direction of the rotation of the propellers. Moreover, the motors
20
are also rotating the propellers
22
at such a rate that the saucer
10
may rotate extremely fast, approximately 300 revolutions per minute. The reaction torque from the three motors
20
may also assist with the rotation of the saucer
10
, since the motors
20
all rotate in the same direction, as viewed from above. In addition, the propeller inclination may not be necessary when the aerodynamic resistance to rotation is low enough that the motor torque is all that becomes required to rotate the saucer
10
.
As explained in greater detail below, a control box
30
controls the flight direction of the saucer
10
. A tether
32
physically and operably connects the control box
30
through the hub
12
to the rotary devices
18
, such that the user may control the direction and throttle of the saucer
10
. In addition, rather then placing a power supply on the saucer
10
and to decrease the weight of the saucer
10
, a wall plug
33
may be used to supply power to the motors
20
. The wall plug
33
connects to the control box
30
and into a typical wall outlet. The tether
32
may then transfer power to the motors
20
as well as the IR emitters
50
and
52
. The tether
32
is further attached to an inner portion
34
of the hub
12
(shown in FIG.
2
). The inner portion
34
is attached to an outer portion
36
through a substantially frictionless bearing
38
. As such when operating, the outer portion
36
rotates defining a rotating portion that includes the outer portion
36
, the rods
14
, the rotary devices
18
and the outer ring
16
. Moreover, the inner portion
34
, which is attached to the tether
32
, defines a non-rotating portion.
The motors
20
may also be gas powered or powered by other means located on the saucer
10
, and may include other means for propulsion rather than propellers. For example, the motors
20
may include exhaust nozzles that are angled to provide both lift and rotation or that may be variably angled such that the angle may be controlled or changed to alternate the direction of rotation. Such aspects may have further scope in other aeronautical or astronautical environments. In addition thereto, the embodiments described herein may be made to other rotary aircraft such as helicopters and scale-sized models or alternatively full sized rotary aircraft.
Continuing to refer to
FIG. 1
, the hub
12
may also include at least three legs
24
that extend downwardly and outwardly from the non-rotating portion or inner portion
34
of the saucer
10
. The legs
24
support the saucer
10
both while it is resting on the ground or a flat surface prior to takeoff and during landing. Each leg
24
also includes a vane
26
protruding outwardly along the length of the leg and inclined approximately 45° into the airflow from the three propellers
18
. As the air is deflected off the vanes a “vane force” is created that tends to drive the non-rotating portion in the opposite direction of the rotation of the saucer
10
. The angle of these vanes
26
are such that the vane force cancels the rotational force created by any friction between the non-rotating portion and the rotating portion.
Since the tether
32
is connected to the non-rotating portion, the direction and throttle inputs as well as power must be communicated from the non-rotating portion to the rotating portion, especially to the rotary devices
18
. Referring now to
FIGS. 2 and 3
, in one embodiment, a small circuit board
40
with four rings (
42
a
,
42
b
,
42
c
and
42
d
, respectively; and generally numerated as
42
, shown in
FIG. 3
) is attached to the outer portion
36
of the hub
12
, which come into contact with corresponding spring loaded carbon brushes (
44
a
,
44
b
,
44
c
and
44
d
; and generally numerated as
44
) mounted on the inner portion
34
. The center ring
42
a
is common to allow the circuits to close upon contact by the other brushes
44
b
,
44
c
and
44
d
with their corresponding rings
42
b
,
42
c
and
42
d
. The three rings
42
b
,
42
c
and
42
d
also individually correspond to one of the motors
20
on each rotary device
18
, M
1
, M
2
and M
3
respectively. It is further important to note that other means may be employed to achieve the objective of communicating the control inputs from the control box
30
to the rotary devices
18
.
The control box
30
further includes either joysticks or buttons that feed throttle and directional control signals through the circuit board
40
to control the rotary devices
18
. As illustrated, the control box
30
includes a throttle joystick
46
and a cyclic or directional joystick
48
.
In addition thereto, the power received through the brushes
44
and corresponding rings
42
may be used to power the IR emitters
50
and
52
as well as a plurality of LEDs or other light transmitters that may be positioned about the saucer
10
for various lighting effects.
As mentioned above, when the saucer
10
begins to rotate it loses its point of reference or orientation such that the saucer
10
has no internal means of determining direction. To provide the saucer with a reference point relative to the user, IR emitters
50
and
52
are mounted, in the same radial axis, on the saucer
10
(shown in FIG.
2
). The first IR emitter
50
is mounted on the lower portion under one of the motors
20
included downwardly at about 40° and the second IR emitter
52
is mounted on the top portion of the hub
12
inclined upwardly at about a 20° angle. As such the IR emitters
50
and
52
cast their beam on the same radial axis but at two different elevations, providing coverage for most of the saucer's
10
range of travel above and below the control box
30
. The IR beam is received by an IR receiver or IR sensor
54
positioned on the front end of the control box
30
.
The IR emitters are modulated by a fixed frequency by circuitry, such as an oscillator
49
, shown in FIG.
3
. This will aid in distinguishing the IR beam from ambient light that may include some IR components. This also allows several saucers
10
to fly in the same space without interfering with each other by using a different modulated frequency for each saucer.
Referring now to
FIG. 4
, the saucer
10
viewed from the top portion may be divided into four quadrants, sequentially labeled Q
1
, Q
2
, Q
3
and Q
4
, where Q
1
is the back/left quadrant when viewing the saucer
10
from the top, when the IR emitters
50
and
52
are aligned with the control box
30
. Following therefrom, Q
2
is the top/left quadrant, Q
3
is the top/right quadrant, and Q
4
is the back/right quadrant. The moment the IR beam is received by the IR sensor
54
, a microprocessor (not shown) in the control box
30
can determine the rotational position of the saucer
10
or orientation of the rotary devices
18
and synchronize the power distributed to the motors
20
such that the saucer
10
will fly or move in any desired direction from the perspective of the person operating the control box
30
. Thereby allowing a user operating the saucer
10
to aligned themselves with the saucer
10
and direct it to the left, right, forwards or towards the user, without having the user to move about the rotating toy to direct it only in a forwards or backwards position. Since the saucer
10
is spinning at approximately 300 rpm, the IR receiver
38
typically receives the signal every ⅕ of a second, permitting a substantially constant determination of such orientation.
As mentioned above, generally the motors are referenced to as
20
but may also be referred to specifically as M
1
, M
2
and M
3
, where M
1
is the motor
20
that has the lower IR emitter
50
mounted thereunder, and moving in a counterclockwise direction, M
2
and M
3
follow thereafter. In addition, since the preferred embodiment includes three motors
20
, the radial position of each is 120° offset from one another. Similarly, if there were more rotary devices
18
, the offset angle would be the total number of rotary devices divided by 360°.
The present invention further includes the ability to provide a smoother control of the power distributed to the motors
20
. While in other flying or rotating toys electro mechanical commutators are used to control the power provided to each motor, the present invention generates a sine wave for each motor that is out of phase with each other by the aforementioned offset angle. Moreover, the sine waves are constructed using a number of samples to create a single cycle of each sine wave, wherein the mechanical commutators use segments in a commutator ring to control the power; where each segment would correspond to a sample. In the preferred embodiment of the present invention the sine waves are constructed from approximately 32 samples, of which it would be extremely difficult to manufacture a commutator with 32 segments. As such the present invention allows for a smoother cyclic control of the rotating toy.
During operation, a user controlling the saucer
10
may move the throttle joystick
46
and the directional joystick
48
. Initially when the saucer
10
is resting on the ground, the user will move the throttle joystick
46
such that the microprocessor begins to provide and increase a drive voltage to each motor
20
. The throttle joystick
46
signals to the microprocessor to control drive voltage to each motor
20
equally such that the saucer
10
raises and lowers at a level angle and not tilted to one side. If the throttle joystick
46
is pushed forward indicating an increase in throttle the microprocessor will increase the amplitude causing the motors
20
to rotate at a faster rate raising the saucer
10
. Alternately, when the throttle joystick
46
is pulled back, the microprocessor will decrease the amplitude causing the rotation of the motors
20
to decrease thereby lowering the saucer
10
.
Another aspect of the present invention is that the microprocessor determines the degree in which the user moves the joysticks, for example, by moving a joystick slightly forward the amplitude of the drive voltage is increased slightly, and when the throttle joystick
46
is moved forwards “all the way” the amplitude of the drive voltage is increased greater than previously causing the saucer
10
to move faster. Thus, when the throttle joystick
46
is moved the magnitude of the drive voltage is increased or decreased at a proportional rate. This aspect is the same for moving either joystick in any direction.
When the user desires to move the saucer
10
is a specific direction, the user may move the directional joystick
48
. The microprocessor receiving a signal from the directional joystick
48
will generate sine waves for each motor M
1
, M
2
and M
3
. The sine waves will be added to the drive voltage causing the motors to increase and decrease the power in accordance to the positive and negative peaks of the sine waves. It is important to note that the sine waves are also out of phase with one another as determined by the offset angle. However, by shifting the beginning phase angle of each sine wave, the motors can be controlled in moving the toy in a specified direction. As such, in each instance, the microprocessor shifts the three individual sine waves to the correct beginning phase angle and adds the correct amplitude to the corresponding drive voltage of each motor to direct the saucer
10
in the direction and rate determined by the directional joystick
48
. By adjusting both the amplitude and the beginning phase angle of the sine waves, the user can adjust the rate in which the saucer
10
moves in a direction, as mentioned in reference to the throttle controls.
In reference to the directional control inputs to the saucer
10
,
FIGS. 5
a
through
5
d
illustrate the sine waves generated by the microprocessor for each motor M
1
, M
2
and M
3
for a single 360° rotation of the saucer
10
. Referring to
FIG. 5
a
, at 0° (when the IR emitters
50
,
52
are aligned with the IR sensor
54
) M
1
will have a sine wave for a single cycle (360°) that has a maximum peak value at 0° and a minimum peak value at 180°; M
2
being 120° out of phase with Ml will not reach a maximum peak value until it travels 120°; and M
3
being 120° out of phase with M
2
will not reach a maximum peak value until it travels 240°. The three sine waves added to the drive voltage will be such that the propeller
22
will rotate faster in Q
1
and Q
4
than in Q
2
and Q
3
, thereby moving the saucer forwards. Referring to
FIGS. 5
b
through
5
d
, the relative sine waves for M
1
, M
2
and M
3
and how the waves are synchronized with one another based up the direction of the directional joystick
48
is illustrated. In
FIG. 5
b
, when the resultant thrust vector is greater in Q
2
and Q
3
than in Q
1
and Q
4
, the saucer moves backwards towards the user. In
FIG. 5
c
, when the resultant thrust vector is greater in Q
3
and Q
4
than in Q
1
and Q
2
, the saucer moves to the left. And in
FIG. 5
d
, when the resultant thrust vector is greater in Q
1
and Q
2
than in Q
3
and Q
4
, the saucer moves to the right
Also illustrated in
FIGS. 5
a
through
5
d
is a probably IR signal received by the IR sensor
54
. Since the saucer
10
may be flown indoors, the IR beam may be reflected from various objects. While the IR signal will also be generally sinusoidal with peaks corresponding to when the IR emitters
50
,
52
are aligned with the IR sensor
54
, false peaks smaller than the main peak may arise from IR reflections. The microprocessor must ignore or eliminate these false peaks by weighing the amplitude of the false peaks against the main peak and weighing the time of reception of the false peaks relative to when the main peak is expected. Moreover, the history of the amplitude may be tracked such that weighing of the peaks may be referred to an amplitude history.
Referring now to
FIGS. 6
a
-
6
c
, in another aspect of the present invention the saucer
10
includes a training mode which helps maintain the saucer
10
flying relatively above a center position. Illustrated in
FIG. 6
a
, the saucer
10
is shown with its tether
32
connected to a base unit
58
positioned on the ground. The base unit
58
will limit the height in which the saucer
10
will be able to fly, as such the saucer
10
will have a spherical flying path defined by the length of the tether
32
that extends out from the base unit
58
. To keep the saucer
10
flying relatively about the center position or over the base unit
58
, the tether
32
connects to the non-rotating portion of the saucer
10
through a declinator
60
. When the declinator
60
senses that the angle between the tether
32
and the non-rotating portion is greater than a predetermined angle, the declinator
60
sends a signal through the tether
32
to the microprocessor indicating that the saucer
10
is flying off from its center position. The microprocessor receiving this signal can then return control inputs to the motors
20
directing the saucer
10
back towards the center position.
More specifically, the declinator
60
includes an upper assembly
62
that is connected to a shaft
63
supported by the rotating portion of the saucer
10
. The assembly
62
has an arm
64
extending therefrom that further supports a spring
66
. The tether
32
is attached to a lower assembly
68
that is connected to the upper assembly
62
by a swivel
70
that permits the upper assembly
62
to rotate and the lower assembly
68
to remain substantially non-rotating. The lower assembly
68
further includes a conductive ring
72
. When the saucer
10
moves to a position away from the center, the tether
32
will move the lower assembly
68
at an angle from the upper assembly
62
. At a predetermined angle, the spring
66
will come into contact with the conductive ring
72
. A signal is thereafter generated by the contact and sent through the tether to the microprocessor. The time that the spring
66
touches the conductive ring
72
is compared to the rotational cycle in order to calculate the direction in which the saucer
10
has moved. The microprocessor may then send a corrective signal (in form with the sine waves for each motor, as discussed above) to deflect the saucer towards the center position, above the base unit. Wires
74
extending from the lower assembly
68
communicate the signals from the microprocessor to the circuit board
40
(not shown).
Other forms of feedback systems that are continuous (or analog) in nature could also be used, such as a hall effect sensor with a rotating magnetic field, or a strain sensor to detect the magnitude and direction of the tether deflections. Referring now to
FIGS. 7
a
and
7
b
, a hall effect sensor
80
is positioned on the lower assembly
68
and a pair of reverse rotating magnets
82
are positioned on the upper assembly
62
. The magnets
82
are arranged such that there is a magnetic null in the center, where the hall effect sensor
80
is located. When the hall effect sensor
80
moves towards one of the magnets
82
, the magnetic field increases towards that magnet and an increasing but opposite field towards the other magnet. A hall effect sensor
80
creates and sends a sinusoidal signal to the microprocessor. The amplitude of the signal is determined by the amount of deflection and the phase is determined by the direction of the deflection. The microprocessor receives the signal and creates sine waves for the motor, as discussed above, deflecting the saucer
10
towards the center or the magnetic null.
It is noted that any other form of directional signal could be used, i.e. visible light, radio waves, magnetic field or sound. Moreover, the direction could further be reversed such that the emitter is on the control box and the sensor on the flying saucer. In a reverse direction, the control information could be transmitted with the reference signal and if an onboard power source were included in the rotating toy, the model could be free flying, meaning without a tether
32
or controlled through wireless means.
The aforementioned means in controlling the direction of a rotating toy may further be applied to other embodiments of rotating toys. For example and illustrated in
FIG. 8
the rotating toy may be a robot
100
. The robot
100
has a central body portion
101
that houses the components. The robot
100
includes an IR sensor
102
positioned on the top portion thereof, configured to receive a signal from an IR transmitter
104
located on a control box
106
. The directionality of the IR beam is provided by a restricted view angle of the sensor
102
. The robot
100
further includes two motors
108
operably connected to a wheel
110
such that when powered the wheels
110
rotate the robot
100
in a predetermined direction. The robot
100
also has a power source or battery pack
112
. The control box
104
emits a direction code corresponding to the directional inputs from the control box
106
. Upon reception by the robot
100
, a microprocessor
114
on the robot
100
can decode the signal and create cyclic control signals that are out of phase from each other by 180° (since there is two motors
108
the phase is determined from the number of motors
108
divided by 360°). The two sine waves would be added to the two motor drive voltages, such that the robot
100
would travel in a direction corresponding to the inputs from the control box
106
, in a manner similar discussed above.
From the foregoing and as mentioned above, it will be observed that numerous variations and modifications may be effected without departing from the spirit and scope of the novel concept of the invention. It is to be understood that no limitation with respect to the specific methods and apparatus illustrated herein is intended or should be inferred. It is, of course, intended to cover by the appended claims all such modifications as fall within the scope of the claims.
Claims
- 1. A rotating toy comprising:a hub having an outer portion rotatably connected to an inner portion; at least three rods extending outwardly from the outer portion and connecting to at least one outer ring, the rods further being positioned at a predetermined offset angle from each other; a rotary device disposed on each rod between the hub and the outer ring, each rotary device includes a motor and a propeller, the propellers being designed to generate lift when rotating by displacing air downwardly, and when the propellers are rotating the motors may generate a reaction torque causing the outer portion of the hub to rotate defining a rotating portion which includes the outer portion of the hub, the rods, the rotary devices and the outer ring; a plurality of legs extending downwardly from the inner portion of the hub to support the rotating toy in an upright configuration when the rotating toy is positioned on a surface, each leg includes a vane protruding outwardly into downwardly displaced air to deflect said displaced air such that the vanes tend to drive the inner portion of the hub in a direction opposite of the outer portion such that when the outer portion is rotating the inner portion is substantially non-rotating defining a non-rotating portion; a means for determining a directional point of reference for the motors when said toy is rotating; and a means for individually controlling the speed of the motors such that the rotating toy may travel in a specified direction.
- 2. The toy of claim 1, wherein the directional point of reference determining means comprises:a pair of IR emitters oppositely positioned on the top portion and the bottom portion of the rotating portion of the toy, the pair of IR emitters being further positioned such that the IR emitters cast IR beams outwardly along the same radial axis; and an IR receiver being placed remotely from the rotating toy and in communication with the controlling means such that upon sensing the IR beam the controlling means may determine the directional point of reference of the three motors.
- 3. The toy of claim 2, wherein the controlling means includes a control box in communication with the rotary devices through a tether that is attached from said control box to the inner portion of the hub.
- 4. The toy of claim 3 further comprising a means to remotely supply a drive voltage through the tether to each motor.
- 5. The toy of claim 4, wherein the control box further includes:a microprocessor in communication with each motor; a throttle controller in communication with the microprocessor such that the throttle controller may indicate to the microprocessor to increase and decrease the drive voltage to each motor; and a directional controller in communication with the microprocessor such that the directional controller may indicate to the microprocessor to generate and add a predetermined sinusoidal wave to each drive voltage corresponding to a specified direction, wherein the predetermined sinusoidal waves may cause the toy to have a resultant thrust vector in said specified direction.
- 6. The toy of claim 5, wherein each predetermined sinusoidal wave is out of phase with one another by the predetermined offset angle.
- 7. The toy of claim 5, wherein each predetermined sinusoidal wave has a beginning phase shift angle determined upon the specified direction.
- 8. The toy of claim 5 further includes a means for sensing when an angle of declination between the tether and the hub is at least a predetermined angle, the sensing means further providing a signal to the microprocessor such that the microprocessor upon receiving said signal may adjust the sinusoidal waves of the motors to move the rotating toy in a direction such that said declination angle becomes less that said predetermined angle.
- 9. The toy of claim 8, wherein the sensing means includes:an upper assembly attached to the rotating portion of the hub, the upper assembly having an arm extending outwardly and a spring attached to said arm; a lower assembly in communication with the tether and attached to the upper assembly by a swivel such that upper assembly may rotate with the rotating portion and the lower assembly may pivot about the swivel; and a conductive ring positioned about the lower assembly such that when the tether pivots the lower assembly by at least a predetermined angle defined between the lower assembly and the spring, the conductive ring contacts the spring sending a signal through the tether to the microprocessor, wherein the microprocessor receiving said signal can determine the orientation of the three motors when said conductive ring contacted the spring and adjust the sinusoidal waves of the motors to move the rotating toy in a direction such that the lower assembly pivots said declination angle becomes less said predetermined angle.
- 10. The toy of claim 5, further including a feed back system such that when the toy moves from a center position to an off center position, the microprocessor may adjust the motors proportionally to the amount the toy has moved from the center position such that the toy has a tendency to return to the center position.
- 11. The toy of claim 10, wherein the feed back system includes:an upper assembly all ached to the rotating portion of the hub; a lower assembly in communication with the tether and attached to the upper assembly by a swivel such that upper assembly may rotate with the rotating portion and the lower assembly may pivot about the swivel; a plurality of magnets positioned about the lower assembly and attached to the rotating portion of the hub creating a magnetic null in the center substantially about the lower assembly; and a hall effect sensor attached to the lower assembly and in communication with the microprocessor such that when the tether pivots the lower assembly the hall effect sensor will generate a sinusoidal wave having an amplitude defined as an amount of deflection the hall effect sensor has moved away from the magnetic null and the phase is defined as a direction of the deflection, wherein the microprocessor receiving the signal can adjust the motors to move the rotating toy in a direction opposite of said deflection such that the hall effect sensor is moved towards the magnetic null.
- 12. The toy of claim 8 further comprising:a base unit having an aperture for receiving a portion of the tether and being positioned on the ground such that the rotating toy is restricted to a flying radius defined by the length of the tether between the base unit and the rotating toy.
- 13. The toy of claim 1, wherein the means for determining directional point of reference comprises:an IR emitter being placed remotely from the rotating toy for transmitting an IR beam; and a pair of IR receivers positioned on the top portion and the bottom portion of the rotating portion of the toy, the pair of IR receivers are positioned along the same radial axis, and the IR receivers in communication with the controlling means such that upon sensing the IR beam the controlling means may determine the specific orientation of the three motors.
- 14. The toy of claim 13 further comprising:a means to supply power separately to each motor secured on the rotating toy; a microprocessor in communication with each power supply means and each motor.
- 15. The toy of claim 14 further comprising:throttle controls means in wireless communication wit the microprocessor, the throttle controls means for sending a signal to the microprocessor indicating an increase and decrease an amount of power separately supplied to each motor equally; and directional controls means in wireless communication with the microprocessor, the directional control means for sending a signal to the microprocessor indicating a direction and a rate in which the toy is to move, wherein the microprocessor receiving said signal may generate and add a sinusoidal wave to each separately supplied power, wherein each sinusoidal wave is offset from each other by the predetermined offset angle and each sinusoidal wave further has a predetermined beginning phase angle such that the motors have a resultant thrust vector in said direction and each sinusoidal wave has an amplitude corresponding to said rate.
- 16. The toy of claim 15, further including a feed back system such that when the toy moves from a center position to an off center position, the microprocessor may adjust the separately supplied power to the motors proportionally to the amount the toy has moved from the center position such that the toy has a tendency to return to the center position.
- 17. The toy of claim 1, wherein each propellers similarly inclined approximately 40°, such that when the rotary devices are operating, the rotating propellers cause the rotating portion to rotate in the opposite direction of the rotating propellers.
- 18. The toy of claim 3, wherein the communication between the tether and rotary devices includes:a circuit board secured to the rotating portion of the hub; four rings mounted on the circuit board; and four spring loaded brushes mounted on the non-rotating portion of the hub and in communication with control box and the circuit board, each brush corresponding to one of the rings, wherein three of the rings and corresponding brushes are individually in communication with one of the motors and the other ring and corresponding brush is common to the other rings and corresponding brushes.
- 19. The rotating toy of claim 1, wherein the outer portion is rotatably connected to the inner portion by a substantially frictionless bearing.
- 20. A rotating toy comprising:a hub supporting a plurality of motors positioned at a predetermined offset angle from each other, the motors secured to a means for rotating the toy and wherein the motors include a propeller operably connected thereto and orientated such that when the propellers are rotating the rotating toy may lift off the ground; a means to provide a drive voltage to each motor; a means to determine the orientation of the motors from a point of reference in a remote non-rotating control box; a means to generate and add a sinusoidal wave to each drive voltage, wherein each sinusoidal wave is out of phase with each other by the predetermined offset angle; a means to control the amplitude and to shift a beginning phase angle of each sinusoidal wave in response to speed and directional inputs from the remote non-rotating control box, such that the rotating toy may move in a direction referenced from the non-rotating body in response to said speed and directional inputs; the hub being further defined as having an outer portion rotatably connected to an inner portion; the outer portion supports a plurality of rods extending outwardly therefrom substantially along the seine plane, the rods further support an outer ring, and each rod supports one of the motors between the outer ring and the outer portion; the inner portion supports a plurality of legs extending downwardly therefrom to support the rotating toy in an upright configuration when is positioned on a surface, each leg includes a vane protruding outwardly such that the air downwardly displaced by the propellers lifting the rotating toy off the ground is deflected, driving the inner portion of the hub in a direction opposite of the outer portion such that when the outer portion is rotating the inner portion is substantially a non-rotating portion; and the inner portion further supports a tether attached to the inner portion of the hub and to the remote control box, the tether is in communication with the motors and the control means.
- 21. The rotating toy of claim 20, further including a feed back system such that when the rotating toy moves from a center position to an off center position, the control means may adjust the motors proportionally to the amount the rotating toy has moved from the center position such that the rotating toy has a tendency to return to the center position.
- 22. The rotating toy of claim 21, wherein the remote control box includes the means to provide the drive voltage to each motor and the means to control the amplitude and the beginning phase angle of each sinusoidal wave.
- 23. The rotating toy of claim 22, wherein the means to determine the orientation of the motors from a point of reference in the remote control box includes mounting a pair of IR emitters on the rotating toy in a predetermined position relating to a specific orientation of the motors, the IR emitters are mounted such that the IR transmitters rotate along with the motors and transmit an IR beam along the same radial axis, and further mounting an IR sensor on the remote control box such that when the IR beam is received by the IR sensor, said specific orientation of the motors is determined.
US Referenced Citations (18)
Foreign Referenced Citations (4)
Number |
Date |
Country |
01201294 |
Aug 1989 |
JP |
03289984 |
Dec 1991 |
JP |
WO 9910235 |
Mar 1999 |
WO |
WO 200187446 |
Nov 2001 |
WO |