Background Art Generally, modern people have been under a lot of stress due to various pollutions and noises and excessively heavy works. Their physical strengths have been also decreased due to lack of exercise. This causes various diseases. In order to get ride of the stress and supplement the lack of exercise, they have enjoyed leports combining leisure with sports.

However, since simple motions are repeatedly executed in the sports, there is a problem that it is help to the exercise, but easily gives rise to weariness. Further, since the leports simply involves interest and pleasure, there is another problem that it is no help to the exercise.

Disclosure of the Invention Therefore, it is an object of the present invention to provide a helicopter that lifts up a rider from the ground according to exercise of the rider, thereby providing interest, pleasure and exercising effect to the rider at the same time.

To accomplish the above objects and advantages, there is provided a helicopter

comprising a rotating portion which is rotated by a control signal input from an outside to wind or release a rope, a lifting portion which is connected to an end of the rope to be lifted by rotating force of the rotating portion and a motion of a rider and a controlling portion which detects a weight of the lifting portion including a rider's weight to control the rotating force of the rotating portion.

Preferably, the rotating portion comprises a rotary motor operated by a control signal of the controlling portion, a reduction gear engaged with a rotating shaft of the rotary motor to reduce a rotating speed of the rotary motor at a desired rate, and a sliding clutch slidably engaged with a side of the reduction gear so that a slip ratio is decided by the control signal of the controlling portion to transmit only a desired intensity of the rotating force.

And the controlling portion comprises a weight-detecting sensor for detecting the weight of the lifting portion including the rider's weight, a controller which confirms the weight of the lifting portion including the rider's weight using a sensed signal supplied from the weight-detecting sensor and then outputs the control signal for controlling the rotating force of the rotating portion, an operating portion for transmitting an operating signal of the rider to the controller, and a radio transmitting/receiving portion which is disposed between the controller and the operating portion to transmit and receive radio data.

Alternatively, the rotating portion comprises a forward and backward rotary motor of which a rotating speed is varied according to an intensity and direction of input power, and a winding reel is interlocked with a rotating shaft of the forward and backward rotary motor to wind the wire rope, and the controlling portion comprises a

weight-detecting sensor for detecting the weight of the lifting portion including the rider's weight, a detecting sensor which is disposed at a side of the lifting portion to detect an exercising amount of the rider, a controller for controlling the rotating speed of the forward and backward rotary motor according to an output signal of the detecting sensor, a power controlling portion which varies a direction and intensity of power supplied to the forward and backward rotary motor according to a control signal of the controller, an operating portion for transmitting an operating signal of the rider to the controller, and a radio transmitting/receiving portion which is disposed between the controller and the operating portion to transmit and receive radio data.

Further, the lifting portion may comprise a bike body which is connected to the wire rope connected to the rotating portion and has a pedal and supporting pillar, a flexible shaft which is engaged with a bevel gear of the pedal to transmit a rotating force of the pedal, and a propeller which is disposed at a lower portion or an upper portion of the bike body and engaged with the flexible shaft to be rotated by power transmitted from the flexible shaft.

And the lifting portion may comprise a main body on which an arm fixing portion is disposed, a wing which is fixed through a hinge to both ends of the main body to be rotated up and down on the hinge according to a motion of a rider's arm, the main body being formed of a lightweight material, a projected jaw which is formed at a desired portion of a bottom face of the wing to prevent directly impacting of the wing and the main body, and a rope which is fixed to the main body and the wing to prevent the wing from being backwardly bent.

Brief Description of the Drawings The above object, other features and advantages of the present invention will become more apparent by describing the preferred embodiment thereof with reference to the accompanying drawings, in which: Fig. 1 is a perspective view of a helicopter according to a first embodiment of the present invention; Fig. 2 is a partially cut away view of a state that a rotating portion of the helicopter of Fig. 1 is disposed at a ceiling according to one embodiment of the present invention; Fig. 3 is a perspective view of a heli-bike of Fig. 1; Fig. 4 is a cross-sectional view of a state that a bevel gear of a propeller of the heli-bike and a second gear of a flexible shaft according to the present invention; Fig. 5 is a block diagram of the helicopter according to a first embodiment of the present invention; Fig. 6 is a perspective view of the helicopter according to a second embodiment of the present invention; Fig. 7 is an exploded perspective view of a wing portion of a harness of Fig. 6; Fig. 8 is a cross-sectional view showing an assembled state of Fig. 7; Fig. 9 is a perspective view of the helicopter according to a third embodiment of the present invention; Fig. 10 is a partially cut away view of a state that a rotating portion of the helicopter of Fig. 9 is disposed at a ceiling according to one embodiment of the present invention;

Fig. 11 is a block diagram of the helicopter according to the third embodiment of the present invention; Fig. 12 is a perspective view of the helicopter according to a fourth embodiment of the present invention; Fig. 13 is a block diagram of the helicopter according to the fourth embodiment of the present invention; Best Mode for Carrying Out the Invention Now, preferred embodiments of the present invention will be described in detail with reference to the annexed drawings.

First embodiment A helicopter according to a first embodiment of the present invention will be described more fully with reference to Figs. 1 to 5.

Fig. 1 is a perspective view of the helicopter according to the present invention.

Referring to Fig. 1, a helicopter 100 of the present invention is comprised of a supporting pillar 110, a rotating portion 200, a lifting portion (hereinafter, called as "heli-bike") and a controlling portion 400.

The supporting pillar 110 supports the heli-bike 300, on which each constructing portion is mounted.

The rotating portion 200 is disposed at a lower portion of the supporting pillar 110 so as to be rotated according to a controlling signal of the controlling portion 400 and wind or release a wire rope 243, and provided with a rotary motor 210, a reduction gear 220, a sliding clutch 230 and a winding reel 240.

The rotary motor 210 is fixedly disposed at the lower portion of the supporting pillar 110 and electrically connected with the controlling portion 400 to be operated by the controlling signal of the controlling portion 400.

One side of the reduction gear 220 is engaged with a rotating shaft 211 of the rotary motor 210 to reduce a rotating speed of the rotary motor 210 at a desired rate.

The sliding clutch 230 is slidably engaged with the other side of the reduction gear 220 to transmit only a part of power transmitted to the reduction gear 220.

Preferably, an electronic clutch is used as the sliding clutch 230, and a fluid clutch may be used.

The winding reel 240 winds the wire rope 243 using rotating force of the sliding clutch 230. A guide roller 242 is additionally disposed between the winding reel 240 and the wire rope 243 to guide the wire rope 243.

Meanwhile, in the rotating portion 200 as shown in Fig 2, a housing 1, in which the rotating portion 200 is received, may be fixedly disposed at an inner portion or outer portion of a ceiling of a building instead of the supporting pillar 110 so that the winding reel 240 directly winds the wire rope 243 without a separate roller to lift up/down the heli-bike 300.

Fig. 3 is a perspective view of the heli-bike in Fig. 2, and Fig. 4 is a cross- sectional view showing a state that a bevel gear of a propeller of the heli-bike is engaged with a second gear of a flexible shaft according to the present invention.

Referring to Figs. 3 and 4, the heli-bike 300 is comprised of a bike body 310, a flexible shaft 320 and a propeller 330.

The bike body 310 has a pedal 360, a protective bar 350 and a fixing plate 340.

The fixing plate 340 is connected to one end of the wire rope 243 to lift up the bike body 310, on which a person rides, by operating the pedal 360. A side portion of the protective bar 350 of the bike body 310 is opened to form a path through which the rider gets on/off the bike body 310. A revolving bar 353 is disposed at the path to open or close the path. One end of the revolving bar 353 is coupled through a hinge 351 to a side of the protective bar 350, and the other end of the revolving bar 353 is coupled through a locking nut 355 to an opposite side of the protective bar 350. At a lower portion of the bike body 310, there is formed a latching plate 311 on which a holding ring 371 of a holding portion 370 is latched.

One end of the flexible shaft 320 is coupled to a first gear 321 engaged with a bevel gear 361 of the pedal 360, and the other end is coupled to a second gear 322 engaged with a bevel gear 331 of the propeller 330 so as to transmit rotating force of the pedal 360 to the propeller 330.

The propeller 330 is disposed at an upper portion of the bike body 310 to be rotated by the rotating force supplied from the flexible shaft 320. Further, the propeller 330 may be disposed at a lower portion of the bike body 310. In this case, it is preferred that a safety net is provided between the bike body 310 and the propeller 330. In addition, the pedal may be disposed at a front portion so that the rider can operates the pedal 360 in a state that the rider sits down, thereby increasing a lifting height of the heli-bike 300.

Fig. 5 is a block diagram of the helicopter according to one embodiment of the present invention.

Referring to Fig. 5, the controlling portion 400 comprises a weight-detecting

sensor 410, a controller 420, an operating panel 430 and an emergency power source supplying portion 440.

The weight-detecting sensor 410 is disposed at the holding portion 370 to detect a weight of the heli-bike 300. Here, the weight-detecting sensor 410 may be disposed at the wire rope 243 to detect the weight. Moreover, the holding portion 370 is disposed on the ground opposite to the heli-bike 300 so as to fix the heli-bike 300. The holding portion 370 has the holding ring 371 that is latched on the latching plate 311 of the heli- bike 300.

The controller 420 confirms the weight of the heli-bike 300 by a sensed signal supplied from the weight-detecting sensor 410, and operates the rotary motor 210, and then outputs a control signal for controlling a slip ratio of the sliding clutch 230. A first radio transmitting/receiving portion 411 is further connected with the controller 420 to transmit and receive radio data.

The operating panel 430 is disposed at a side of the heli-bike 300, and has a plurality of functional buttons (not shown) and a display portion 431 so as to transmit an operating signal of the rider to the controller 420 and thus directly control the helicopter 100. A second radio transmitting/receiving portion 432 is connected with the operating panel 430 to transmit the radio data to the controller 420 and receive the radio data supplied from the controller 420.

The emergency power source supplying portion 440 is comprised of a charging device such as a battery so as to supply power source to each constructing portion when the power is cut, thereby stably landing the rider.

Hereinafter, an operation of the helicopter according to the first embodiment of

the present invention will be described more fully referring to Figs. 1 and 3 to 5.

If the rider weighing approximate 70Kg gets on the heli-bike 300, the controller 420 of the controlling portion 400 confirms a weight of the heli-bike (a weight itself + the rider's weight), which is detected by the weight-detecting sensor 410. If the weight of the heli-bike is 100Kg, the controller 420 controls the sliding clutch 430 according to predetermined data and decides the slip ratio of the sliding clutch from a few grams to a few kilograms. At this time, the controller 420 may vary the slip ratio according to an operation of the rider to control an exercise amount.

In a state that the rider gets on the heli-bike 300, the controller 420 controls and drives the rotary motor 210 of the rotating portion 200. If the rotary motor 210 is rotated at a torque of 200Kg, the reduction gear 220 reduces only the rotating speed while maintaining the rotating torque.

When the rotating force is transmitted from the reduction gear 220, the sliding clutch 230 transmits only the rotating force of 98Kg out of the 200Kg to the winding reel 240 according to the decided slip ratio and then slips the rest of the rotating force of 102Kg.

Meanwhile, In case the weight of the heli-bike 300 is 100Kg, the heli-bike 300 is not lifted upward since the rotating force transmitted to the winding reel 240 is 98Kg.

In this situation, if the rider forwardly operates the pedal 360 of the heli-bike 300 and thus rotates the propeller 330 to generate the lifting force of 2Kg or more, the wire rope 243 is wound on the winding reel 240, so that the heli-bike 300 is lifted up. And if the rider does not operate the pedal 360 or backwardly operates the pedal 360, the heli-bike 300 is slowly lowered down to the ground by its own weight including the rider's

weight.

When the power is cut, the emergency power source supplying portion 440 supplies the power to the rotary motor 210 and the sliding clutch 230. In case the operation of the rotary motor 210 and the sliding clutch 230 is off by the rider, the helicopter 100 may be used as a bike type exercising equipment.

Second embodiment The helicopter according to a second embodiment of the present invention will be described more fully with reference to Figs. 6 to 8. In the embodiment, the same constructing portions as those of the first embodiment are denoted by the same reference numerals, and the description thereof is herein omitted.

Fig. 6 is a perspective view of the helicopter according to a second embodiment of the present invention.

Referring to Fig. 6, the helicopter 100 comprises a supporting pillar 110, a rotating portion 200, a lifting portion (hereinafter, called as"harness") 500 and a controlling portion 400.

Fig. 7 is an exploded perspective view of a wing portion of a harness of Fig. 6, and Fig. 8 is a front view of the wing portion of Fig. 7.

As shown in Figs. 7 and 8, the harness 500 is comprised of a safety belt 510 and a wing portion 520.

The safety belt 510 is connected with one end of a wire rope 243 to fix a rider's body. At a lower portion of the safety belt 510, there is formed a latching plate 511 on which a holding ring 371 of a holding portion 370 is latched.

The wing portion 520 is comprised of a main body 521, a wing 523, a projected

jaw 524 and a rope 525. The main body 521 is formed of a lightweight material, e. g., acryl or foamed acryl into a T shape. On an upper face of the main body 521, there is additionally provided a fixing portion 526 for fixing rider's hands and arms. A Velcro tape (527) is attached to each end of the fixing portion 526 to fix the hands and arms.

The wing 523 is formed of the same lightweight material as that of the main body 521. An end of the wing 523 is fixed through a hinge 528 to a bent portion 522 of the main body 521 so that the wing 523 is rotated up and down on the hinge according to motion of the rider's arm.

The projected jaws 524 is formed at a bottom face of the wing 523 to prevent the wing 523 from directly impacting against the main body 521 and thus prevent a damage of the main body 521 and the wing 523. One end of the rope is fixed to the main body 521 and the other end of the rope is fixed to the wing 523 to prevent the wing from being bent backward.

The rotating portion 200 of the embodiment may be also fixedly disposed at an inner portion and an outer portion of a ceiling of a building instead of the supporting pillar 110 so that a winding reel 240 directly winds the wire rope 243 without a separate roller so as to lift up and down the harness 500.

Hereinafter, an operation of the helicopter according to the second embodiment of the present invention will be described more fully with reference to Figs. 6 to 8.

If the rider weighing approximate 70Kg gets on the harness 500 and is then fixed by the safety belt with the rider's arm being fixed on the wing portion 520, the controller 420 of the controlling portion 400 confirms a weight of the harness 500 (a weight itself + the rider's weight), which is detected by the weight-detecting sensor 410.

If the weight of the harness 500 is 73Kg, the controller 420 controls the sliding clutch 430 according to predetermined data and decides the slip ratio of the sliding clutch from a few grams to a few kilograms. At this time, the controller 420 may vary the slip ratio according to an operation of the rider to control an exercise amount.

In a state that the rider gets on the harness 500, the controller 420 controls and drives the rotary motor 210 of the rotating portion 200. If the rotary motor 210 is rotated at a torque of 200Kg, the reduction gear 220 reduces only the rotating speed while maintaining the rotating torque.

When the rotating force is transmitted from the reduction gear 220, the sliding clutch 230 transmits only the rotating force of 71Kg out of the 200Kg to the winding reel 240 according to the decided slip ratio and then slips the rest of the rotating force of 129Kg.

Meanwhile, In case the weight of the harness 500 is 73Kg, the harness 500 is not lifted upward since the rotating force transmitted to the winding reel 240 is 71Kg. In this situation, if the rider forwardly operates the wing portion 520 to generate the lifting force of 2Kg or more, the wire rope 243 is wound on the winding reel 240, so that the harness 500 is lifted up. And if the rider does not operate the wing portion 520 or backwardly operates the wing portion 520, the harness 500 is slowly lowered down to the ground by its own weight including the rider's weight.

When the power is cut, the emergency power source supplying portion 440 supplies the power to the rotary motor 210 and the sliding clutch 230.

Third embodiment The helicopter according to a third embodiment of the present invention will be

described more fully with reference to Figs. 9 to 11. In the embodiment, the same constructing portions as those of the first embodiment are denoted by the same reference numerals, and the description thereof is herein omitted.

Fig. 9 is a perspective view of the helicopter according to a third embodiment of the present invention.

Referring to Fig. 9, the helicopter comprises a supporting pillar 610, a rotating portion 700, a lifting portion (hereinafter, called as"heli-bike") 300 and a controlling portion 800.

The supporting pillar 610 supports the heli-bike 300, on which each constructing portion is mounted.

The rotating portion 700 is comprised of a forward and backward rotary motor 710 and a winding reel 720. The forward and backward rotary motor 710 is disposed at a lower portion of the supporting pillar 610 so that the rotating speed of the rotary motor 710 is varied according to a direction and intensity of the power supplied from a power controlling portion 840 of the controlling portion 800. The winding reel 720 is interlocked with a rotating shaft 711 of the forward and backward rotary motor 710 to wind a wire rope 722. A guide roller 721 for guiding the wire rope 722 is additionally disposed between the winding reel 720 and the wire rope 722.

Meanwhile, in the rotating portion 700 as shown in Fig 10, a housing 1, in which the rotating portion 700 is received, may be fixedly disposed at an inner portion or outer portion of a ceiling of a building instead of the supporting pillar 110 so that the winding reel 720 directly winds the wire rope 722 without a separate roller to lift up and lower down the heli-bike 300.

Fig. 11 is a block diagram of the helicopter according to the third embodiment of the present invention.

Referring to Fig. 11, the controlling portion 800 comprises a weight-detecting sensor 810, a rotation sensor 820, a controller 830, a power controlling portion 840 and an operating panel 850.

The weight-detecting sensor 810 is disposed at the holding portion 370 to detect a weight of the heli-bike 300. Here, the weight-detecting sensor 810 may be disposed at the wire rope 722 to detect the weight.

The rotation sensor 820 is disposed at the pedal 360 of the heli-bike 300 or a side of the propeller 330 to detect the rotational number of the pedal 360 and the propeller 330.

The controller 830 controls the power controlling portion 840 according to a sensed signal supplied from the weight-detecting sensor 810 and the rotation sensor 820, and then controls the rotating speed and torque of the forward and backward rotary motor 710. Here, a first radio transmitting/receiving portion 831 is further connected with the controller 830 to transmit and receive radio data.

The power controlling portion 840 varies the direction and intensity of the input power according to a control signal of the controller 830, and then supplies the varied power to the forward and backward rotary motor 710 to vary the rotating speed and torque of the forward and backward rotary motor 710.

The operating panel 850 is disposed at a side of the heli-bike 300, and has a plurality of functional buttons (not shown) and a display portion 851 so as to transmit an operating signal of the rider to the controller 830 and thus directly control the helicopter

100. A second radio transmitting/receiving portion 852 is connected with the operating panel 850 to transmit the radio data to the controller 830 and receive the radio data supplied from the controller 830.

Hereinafter, an operation of the helicopter according to the third embodiment of the present invention will be described more fully referring to Figs. 9 and 11.

If the rider weighing approximate 70Kg gets on the heli-bike 300, the controller 830 of the controlling portion 800 confirms a weight of the heli-bike (a weight itself + the rider's weight) using the signal detected by the weight-detecting sensor 810. If the weight of the heli-bike is 100Kg, the controller 830 controls the power controlling portion 840 to supply a current for generating a rotating torque of 100Kg to the forward and backward rotary motor 710.

In this situation, if the rider forwardly operates the pedal 360 of the heli-bike 300, the power controlling portion 840 is controlled based on the sensed signal of the rotation sensor 820 so that the forward and backward rotary motor 710 generates a rotating torque of 200Kg.

If the forward and backward rotary motor 710 is rotated, the winding reel 720 engaged with the rotary motor 710 is thus rotated. Therefore, while the wire rope 722 connected to the heli-bike 300 is wound on the winding reel 720, the heli-bike 300 is lifted up. At this time, the controller 830 controls a lifting speed of the heli-bike 300 according to the rotating speed of the pedal 350. Meanwhile, the heli-bike 300 may be maintained in a lifted state without operating of the pedal 360 according to an operation of the rider. If the rider backwardly operates the pedal 350, the heli-bike 300 is lowered down to the ground. The propeller 330 of the heli-bike 300 is used to provide a visual

effect by which the rider can vividly feel the lifting operation.

Fourth embodiment The helicopter according to a fourth embodiment of the present invention will be described more fully with reference to Figs. 12 to 13. In the embodiment, the same constructing portions as those of the first embodiment are denoted by the same reference numerals, and the description thereof is herein omitted.

Fig. 12 is a perspective view of the helicopter according to a fourth embodiment of the present invention.

Referring to Fig. 12, the helicopter 600 comprises a supporting pillar 510, a rotating portion 700, a lifting portion (hereinafter, called as"harness") 500 and a controlling portion 900.

The supporting pillar 610 supports the harness 500, on which each constructing portion is mounted.

The rotating portion 700 is comprised of a forward and backward rotary motor 710 and a winding reel 720. The forward and backward rotary motor 710 is disposed at a lower portion of the supporting pillar 610 so that the rotating speed of the rotary motor 710 is varied according to a direction and intensity of the power supplied from a power controlling portion 840 of the controlling portion 800. The winding reel 720 is interlocked with a rotating shaft 711 of the forward and backward rotary motor 710 to wind a wire rope 722. A guide roller 721 for guiding the wire rope 722 is additionally disposed between the winding reel 720 and the wire rope 722. Further, the rotating portion 700 may be disposed at a ceiling of a building instead of the supporting pillar 610 without a separate equipment so that the winding reel 720 directly winds or releases

the wire rope 722.

Fig. 13 is a block diagram of the helicopter according to the fourth embodiment of the present invention.

Referring to Fig. 13, the controlling portion 900 comprises a weight-detecting sensor 910, a vibration sensor 920, an operating panel 850, a controller 940 and a power controlling portion 950.

The weight-detecting sensor 910 is disposed at the holding portion 370 to detect a weight of the harness 500. Here, the weight-detecting sensor 910 may be disposed at the wire rope 722 to detect the weight.

The vibration sensor 930 is disposed at the wing portion 520 of the harness 500 or a body of the rider to detect a flapping amount of the wing portion 520.

The operating panel 930 is disposed at the wing portion 520 of the harness 500 or a body of the rider, and has a plurality of functional buttons (not shown) and a display portion 931 so as to transmit an operating signal of the rider to the controller 940 and thus directly control the helicopter 600. A second radio transmitting/receiving portion 932 is connected with the operating panel 930 to receive the radio data supplied from the controller 940 and transmit the sensed signal of the vibration sensor 920 to the controller 940.

The controller 940 controls the power controlling portion 950 according to the sensed signal supplied from the weight-detecting sensor 910 and the vibration sensor 920, and controls the rotating speed and torque of the forward and backward rotary motor 710. Here, a first radio transmitting/receiving portion 941 is further connected with the controller 940 to transmit and receive radio data.

The power controlling portion 950 varies the input power according to a control signal of the controller 940, and thus varies the rotating speed and torque of the forward and backward rotary motor 710.

Hereinafter, an operation of the helicopter according to the fourth embodiment of the present invention will be described more fully with reference to Figs. 12 to 13.

If the rider weighing approximate 70Kg gets on the harness 500, the controller 940 of the controlling portion 900 confirms a weight of the harness (a weight itself + the rider's weight) using the signal detected by the weight-detecting sensor 910. If the weight of the harness is 73Kg, the controller 940 controls the power controlling portion 950 to supply a current for generating a rotating torque of 73Kg to the forward and backward rotary motor 710.

In this situation, if the rider forwardly operates the wing portion 520, the power controlling portion 950 is controlled based on the sensed signal of the vibration sensor 920 so that the forward and backward rotary motor 710 generates a rotating torque of 73Kg.

Then, the winding reel 720 engaged with the rotary motor 710 is rotated.

Therefore, while the wire rope 722 connected to the harness 500 is wound on the winding reel 720, the harness 500 is lifted up. At this time, the controller 830 receives the flapping amount of the wing portion 520, which is detected by the vibration sensor 920, and controls a lifting speed of the harness 500 according to the flapping amount of the wing portion 520. Meanwhile, the harness 500 may be maintained in a lifted state without operating of the wing portion 520 by an operation of the rider. If the rider backwardly operates the wing portion 520, the harness 500 is lowered down to the

ground. The flapping motion using the wing portion 520 is to provide a visual effect by which the rider can vividly feel the lifting operation.

As described above, the helicopter according to the present invention is lifted up and lowered down according to the motion of the rider, thereby providing interest, pleasure and exercise effect at the same time.

While the present invention has been described in detail, those skilled in the art will appreciate that various modifications and substitutions can be made thereto without departing from the spirit and scope of the present invention as set forth in the appended claims.