Patent Publication Number: US-2013252502-A1

Title: Air swimming toy with driving device

Description:
CROSS REFERENCE OF RELATED APPLICATION 
     This is a Continuation-In-Part that claims the benefit of priority under 35 U.S.C. §119 to a non-provisional application, application Ser. No. 13/506,052, filed Mar. 23, 2012. 
    
    
     BACKGROUND OF THE PRESENT INVENTION 
     1. Field of Invention 
     The present invention relates to a remote controlled flying toy, and more particular to an air swimming toy, wherein a driving device of the air swimming toy is arranged for creating an air pressure difference underneath the toy body to control the altitude of the air swimming toy. 
     2. Description of Related Arts 
     A plurality of air-floating toys are known which are capable of self-floating in the air and propelling in the air via a remote control. In particular, the air-floating toys are driven by means of a wiggling motion. However, the conventional air-floating toy is hard to be controlled its direction and elevation. An improved air-floating toy generally comprises a toy body, a driving mechanism and a steering mechanism to control the altitude and the direction of the air-floating toy respectively via a remote controller. 
     The driving mechanism is affixed underneath the toy body to control the altitude thereof, wherein the driving mechanism comprises an elongated track member longitudinally affixed to the bottom side of the toy body and a weight member sildably coupled along the track member. When the weight member is controlled via the remote controller to slide toward the head of the toy body, the weight of the weight member is shifted frontwardly, so as to shift the center of mass of the toy body frontwardly. Therefore, the toy body is dropped downwardly to lower the altitude of the air-floating toy. Likewise, when the weight member is controlled via the remote controller to slide toward the tail of the toy body, the weight of the weight member is shifted rearwardly, so as to shift the center of mass of the toy body rearwardly. Therefore, the toy body is elevated upwardly to increase the altitude of the air-floating toy. However, the driving mechanism has several drawbacks. 
     The track member must be securely affixed to bottom side of the toy body. Preferably, a front end, a rear end, and a mid-portion of the track member are glued to the toy body to form a three-point support, such that the weight member can be controllably slid between the front and rear ends of the track member to select the shifting position of the weight member. However, the track member cannot be secured to the bottom side of the toy body. In other words, the track member can be easily detached from the toy body when the toy body is drastically dropped on the floor or by any strong impact. In addition, the weight of weight member keeps shifting between the front and rear ends of the track member, such that the sliding movement and the weight shifting force will cause the track member detaching from the toy body. Accordingly, if one point of the track member is disengaged with the toy body, the weight member will be misaligned to slide at the bottom side of the toy body. In worst case, if one of the front and rear ends of the track member is detached from the bottom side of the toy body, the weight member will not able to slide at the track member to control the altitude of the air-floating toy. 
     Furthermore, the weight member comprises a gear wheel powered by a battery to rotatably engage with a gear track along the track member. The gear wheel is actuated to rotate via a motor electrically connected to the battery. However, the actuation of the gear wheel requires relatively higher electrical power such that the weight member will run out of battery rapidly. An unavoidable noise will be generated during the actuation of the gear wheel. 
     The driving mechanism requires relatively larger installation space at the bottom side of the toy body. As it is mentioned above, the track member is longitudinally affixed to the bottom side of the toy body at a position that the front and rear ends of the track member are extended toward the head and tail of the toy body respectively. The length of the track member must be long enough in order for the weight member to slide therealong so as to shift the weight back and forth. In other words, the size of the driving mechanism cannot be minimized and the driving mechanism will destroy the aesthetic appearance of the toy body especially when the toy body floats in the air. 
     SUMMARY OF THE PRESENT INVENTION 
     The invention is advantageous in that it provides an air swimming toy, wherein a driving device of the air swimming toy is arranged for creating an air dynamic underneath the toy body to control the altitude of the air swimming toy. 
     Another advantage of the invention is to provide an air swimming toy, wherein an air pressure difference is created underneath the toy body by the driving device to control the altitude of the air swimming toy. 
     Another advantage of the invention is to provide an air swimming toy, wherein the air pressure difference is created by an air propelling force to control the altitude of the air swimming toy. 
     Another advantage of the invention is to provide an air swimming toy, wherein the driving device comprises an air propeller to create the air propelling force underneath the air swimming toy so as to control the altitude of the air swimming toy. 
     Another advantage of the invention is to provide an air swimming toy, wherein the driving device is fixed at the bottom side of the toy body without any moving or sliding part along the toy body so as to prevent the driving device being detached from the toy body accidentally. 
     Another advantage of the invention is to provide an air swimming toy, wherein the size of the driving device is relatively small to minimize the installation space at the toy body so as to keep the aesthetic appearance of the air swimming toy. 
     Another advantage of the invention is to provide an air swimming toy, wherein only the air propeller is driven to create the air propelling force to minimize the noise from the driving device during operation. 
     Another advantage of the invention is to provide an air swimming toy, which does not require to alter the original structural design of the toy body, so as to minimize the manufacturing cost of the air swimming toy incorporating with the driving device. 
     Another advantage of the invention is to provide an air swimming toy, wherein no expensive or complicated structure is required to employ in the present invention in order to achieve the above mentioned objects. Therefore, the present invention successfully provides an economic and efficient solution for providing a stable and silent operation for the driving device to control the altitude of the air swimming toy. 
     Additional advantages and features of the invention will become apparent from the description which follows, and may be realized by means of the instrumentalities and combinations particular point out in the appended claims. 
     According to the present invention, the foregoing and other objects and advantages are attained by an air swimming toy which comprises: 
     a toy body arranged for being floated in the air; 
     a driving device comprising an air propeller supported at a bottom side of the toy body for creating an air dynamic underneath the toy body, and 
     a remote controller remotely controlling the driving device to operate the air propeller, wherein the air propeller is activated to rotate in order to control an altitude of the toy body via the air dynamic. Accordingly, when a controllable air pressure underneath the toy body is lesser than a surrounding air pressure, the toy body is elevated in the air, and when the controllable air pressure is higher than the surrounding air pressure, the toy body is dropped down in the air. 
     In accordance with another aspect of the invention, the present invention comprises a method of controlling an altitude of an air swimming toy, comprising the steps of: 
     (A) supporting an air propeller at a bottom side of a toy body for creating an air dynamic underneath said toy body, wherein the toy body is arranged for being floated in the air; and 
     (B) activating the air propeller to rotate in order to control an altitude of the toy body via the air dynamic. 
     Still further objects and advantages will become apparent from a consideration of the ensuing description and drawings. 
     These and other objectives, features, and advantages of the present invention will become apparent from the following detailed description, the accompanying drawings, and the appended claims. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of an air swimming toy according to a preferred embodiment of the present invention, illustrating the driving device being supported underneath the toy body and being controlled by a remote controller. 
         FIG. 2  is an exploded perspective view of the driving device of the air swimming toy according to the above preferred embodiment of the present invention. 
         FIG. 2A  illustrates an alternative mode of the air propeller of the air swimming toy according to the above preferred embodiment of the present invention. 
         FIG. 3  illustrates the air propeller within the operative housing to create a difference between a controllable air pressure and a surrounding air pressure as the air dynamic underneath the toy body. 
         FIG. 3A  illustrates the alternative mode of the air propeller of the air swimming toy according to the above preferred embodiment of the present invention, illustrating the air propeller being rotated horizontally. 
         FIG. 4  is an alternative mode of driving unit of the air swimming toy according to the above preferred embodiment of the present invention, illustrating two air propellers being controlled. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to  FIGS. 1 to 3  of the drawings, an air swimming toy according to a preferred embodiment of the present invention is illustrated, wherein the air swimming toy comprises a toy body  10 , a driving device  20 , and a remote controller  30 . 
     The toy body  10  comprises a floating body  11  and a tail body  12  movably coupled with the floating body  11 , wherein the floating body  11  is filled with a particular gas, such as helium, in order to float in the air. In particular, the toy body  10  further comprises a valve  13  provided at the floating body  11  for filling the gas thereinto. The floating body  11  is made of high quality, durable nylon material that will stay inflated for to a relatively long period of time, such as a week. The gas can be refilled to the floating body  11  via the valve  13  to inflate the floating body  11 . 
     Accordingly, when the tail body  12  is moved in a wiggling motion, the toy body  10  will move forward slowly and smoothly as the swimming motion in the air. The tail body  12  is also formed as a steering member of the toy body  10  that when the tail body  12  is moved sidewardly, the toy body  10  will turn correspondingly. 
     The air swimming toy further comprises a steering device  40  provided at a connection between the floating body  11  and the tail body  12  to drive the tail body  12  to move in a wiggling motion. In other words, the steering device  40  not only forms a movable joint to connect the tail body  12  to the floating body  11  but also forms a propelling unit to drive and steering the toy body  10  forward. 
     The driving device  20  of the present invention is used for controlling a direction, such as an altitude and left-right direction, of the toy body  10  but not the forward driving movement thereof. In other words, the driving device  20  of the present invention is arranged for controllably elevating the toy body  10  and for controllably dropping down the toy body  10 . 
     As shown in  FIG. 2 , the driving device  20  comprises an air propeller  21 , an operative housing  22  and a motorized unit  23  located underneath the toy body  10 . 
     The air propeller  21  is supported at a bottom side of the floating body  11  of the toy body  10  for creating an air dynamic underneath the toy body  10 . The air dynamic at the bottom side of the toy body  10  will either create an upward elevating force to elevate the toy body  10  or create a downward dropping force to drop down the toy body  10 . Accordingly, the air propeller  21  is activated to rotate in order to control an altitude of the toy body  10  via the air dynamic, i.e. the up and down movement of the toy body  10 . The air propeller  21  comprises a plurality of airfoil-shaped blades for transmitting rotational motion into thrust. It is worth mentioning that the air propeller  21  is not arranged for propelling the toy body  10  forward but for controlling the altitude of the toy body  10 . The air propelling terminology is old and well known for propelling an object forward. For example, an airship is propelled through the air using propellers or other thrust mechanisms to move the airship forward. A helicopter is propelled by rotary wing terminology to elevate the helicopter. However, none of the existing object incorporates with the air propeller  21  at the bottom side as the air swimming toy of the present invention in order to control the altitude of the air swimming toy. 
     The operative housing  22  is mounted at the bottom side of the floating body  11  of the toy body  10 , wherein the air propeller  21  is housed in the operative housing  22  to create the air dynamic within the operative housing  22 . In particular, the operative housing  22  is shaped in an aerodynamic configuration, wherein the operative housing  22  has an enlarged head portion  221  to receive the air propeller  21  therein, and an elongated tail portion  222  extended toward a tail portion of the toy body  10 , i.e. the tail body of the toy body  10 . The operative housing  22  further has a curved front surface  223  at the front side of the head portion  221  and a streamlined bottom surface  224  extended from the head portion  221  to the tail portion  222  for reducing an air drag of the operative housing  22 . 
     The operative housing  22  further has a plurality of side air vents  225  formed at two sidewalls of the head portion  221  and a plurality of bottom air vents  226  formed at the bottom surface  224  at the head portion  221 . 
     The motorized unit  23  is operatively connected to the air propeller  21  to drive the air propeller  21  to rotate for creating a controllable air pressure underneath the toy body  10  at the floating body  11  thereof, wherein the motorized unit  23  comprises a driving shaft  231  sidewardly extended with respect to the toy body  10  to couple with the air propeller  21 . In particular, the air propeller  21  is coupled at the driving shaft  231  to be rotated at a direction with respect to a centerline of the toy body  10 . Preferably, the rotational direction of the air propeller  21  is supported and aligned with the centerline of the toy body  10 . 
     Accordingly, when the controllable air pressure is lesser than a surrounding air pressure, the toy body  10  is elevated in the air, and when the controllable air pressure is higher than the surrounding air pressure, the toy body  10  is dropped down in the air. It is worth mentioning that through the side air vents  225  and the bottom air vents  226 , the air propeller  21  can create a difference between the controllable air pressure and the surrounding air pressure. As shown in  FIG. 3 , the air propeller  21  within the operative housing  22  is activated to create the controllable air pressure within the operative housing  22  in relation to the surrounding air pressure outside the operative housing  22 . 
     According to the preferred embodiment, the motorized unit  23  is a DC motor and is controlled to generate a reversible rotating power to selectively drive the air propeller  21  between two opposite rotating directions. In other words, when the air propeller  21  is driven to rotate at a forward direction, the controllable air pressure will be reduced in the operative housing  22 . When the air propeller  21  is driven to rotate at a backward or reversed direction, the controllable air pressure will be increased in the operative housing  22 . 
     In particular, the air propeller  21  is supported at a horizontal level, i.e. the driving shaft  231  is downwardly extended from the motorized unit  23 , wherein the air propeller  21  is rotated horizontally. For example, when the air propeller  21  is driven to horizontally rotate at the clockwise direction, the toy body  10  will be lifted upwardly. When the air propeller  21  is driven to horizontally rotate at the counter clockwise direction, the toy body  10  will be dropped downwardly. 
       FIGS. 2A and 3A  further illustrate the alternative of the air propeller  21 A at different orientation to steer the toy body  10 . As shown in  FIGS. 2A and 3A , the air propeller  21 A is supported at a vertical level, i.e. the driving shaft  231  is sidewardly extended from the motorized unit  23 , wherein the air propeller  21 A is rotated vertically. 
     Accordingly, when the controllable air pressure is different the surrounding air pressure at one side of the operative housing  22 , the toy body  10  is driven to turn in the air. In other words, when the controllable air pressure is lower than the surrounding air pressure at the right side of the operative housing  22 , the toy body  10  is driven to turn left. When the controllable air pressure is lower than the surrounding air pressure at the left side of the operating housing  22 , the toy body  10  is driven to turn right. It is worth mentioning that through the side air vents  225  and the bottom air vents  226 , the air propeller  21 A can create a difference between the controllable air pressure and the surrounding air pressure at either side of the operative housing  22 . For example, when the air propeller  21 A is driven to vertically rotate at the clockwise direction, the toy body  10  is driven to turn at a left direction. When the air propeller  21 A is driven to vertically rotate at the counter clockwise direction, the toy body  10  is driven to turn at a right direction. 
     As shown in  FIG. 2 , the driving device  20  further comprises a battery compartment  24  for replaceably receiving a battery thereat to electrically connect to the motorized unit  23  and to the air propeller  21 . The battery compartment  24  is provided at the tail portion  222  of the operative housing  22 . The driving device  20  further comprises a mounting platform  25  securely coupled at the bottom side of the toy body  10  via glue, double-sided adhering layer, hook and loop fasteners or the like. The mounting platform  25  provides a flat supporting surface that the motorized unit  23  is mounted at the front portion to support the air propeller  21  and the battery compartment  24  is provided at the rear portion of the mounting platform  25 . The operative housing  22  is detachably coupled with the mounting platform  25  to enclose the air propeller  21 , the motorized unit  23 , and the battery compartment  24 . 
     As shown in  FIG. 2 , the toy body  10  further comprises a covering layer  14  detachably coupled at the bottom side of the toy body to cover the driving device  20 . Accordingly, the covering layer  14  is made of the same material and is configured to have matched color of the floating body  11  of the toy body  10  to hide the driving device  20 , as shown in  FIG. 1 , so as to keep the aesthetic appearance of the toy body  10 . It is worth mentioning that the operative housing  22  is relatively small comparing with the size of the toy body  10 . Therefore, when the covering layer  14  is attached to the bottom side of the floating body  11  of the toy body  10 , the driving device  20  will be hidden by the covering layer  14 . Preferably, the covering layer  14  is detachably attached to the floating body  11  of the toy body  10  via hook and loop fastener, or other detachable fasteners. In addition, the covering layer  14  has a plurality of through slots  141  aligned with the side and bottom air vents  225 ,  226  of the operative housing  22  when the operative housing  22  is covered by the covering layer  14 , such that when the air propeller  21  is operated, an interior of the operative housing  22  is communicated with an exterior thereof. 
     According to the preferred embodiment, the remote controller  30  is remotely controlling the driving device  20  to operate the air propeller  21 . In particular, the remote controller  30  is wirelessly control the driving device  20  and the steering device  40 . Therefore, the remote controller  30  is arranged to control the altitude of the toy body  10  via the driving device  20 , and is arranged to control the steering and propelling of the toy body  10  via the steering device  40 . 
     As shown in  FIG. 2 , the remote controller  30  comprises a handheld control  31  and a remote receiver  32  wirelessly connected to the handheld control  31 , wherein the remote receiver  32  is housed in the operative housing  22  and is operatively linked to the motorized unit  23  to control an operation of the air propeller  31 . Preferably, the handheld control  32  is wirelessly linked to the remote receiver  32  via radio frequency (RF) connection, Infrared (IF) connection or other wireless connections. Accordingly, the remote receiver  32  comprises a control circuit and a remote antenna electrically coupled thereto, wherein the motorized unit  23  is operatively coupled at the control circuit of the remote receiver  32 . Therefore, when the remote receiver  32  receives a control signal from the handheld control  31 , the motorized unit  23  is activated to control the operation of the air propeller  21 . In addition, the steering device  40  is also operatively linked to the control circuit of the remote receiver  32 , such that when the remote receiver  32  receives a control signal from the handheld control  31 , the steering device  40  is activated to control the steering and propelling operation of air swimming toy. 
     The present invention further provides a method of controlling an altitude of the air swimming toy, comprising the following steps. 
     (1) Support the air propeller  21  at the bottom side of the toy body  10  for creating the air dynamic underneath the toy body  10 . Accordingly, the toy body  10  is filled with the gas in order to float in the air. 
     According to the preferred embodiment, the mounting platform  25  is affixed to the bottom side of the floating body  11  of the toy body  10  such that the motorized unit  23  is coupled underneath the toy body  10  to support the air propeller  21  at the bottom side of the toy body  10 . 
     The battery is placed at the battery compartment  24  to electrically connect to the motorized unit  23 . Then, the operative housing  22  is coupled with the mounting platform  25  to enclose the motorized unit  23  and the air propeller  21  within the operative housing  22 . 
     (2) Activate the air propeller  21  to rotate in order to control the altitude of the toy body  10  via the air dynamic. 
     Once the power of the motorized unit  23  is switched on, the air propeller  21  is activated to rotate when the remote receiver  32  receives the control signal from the handheld control  31 . The air propeller  21  will start to rotate to create the air dynamic within the operative housing  22  for creating the controllable air pressure. Through the difference between the controllable air pressure and the surrounding air pressure, the toy body  10  will be selectively elevated at a predetermined height. It is worth mentioning that the toy body  10  will be elevated or dropped down gradually and slowly through the air dynamic. 
       FIG. 4  illustrates an alternative mode of the driving unit  20 B of the air swimming toy for controlling a direction, such as an altitude and left-right direction, of the toy body  10 . The driving device  20 B comprises first and second air propellers  21 B, to  21 C, an operative housing  22 B and first and second motorized units  23 B,  23 C located underneath the toy body  10 . The first and second air propellers  21 B,  21 C are operatively coupled with the first and second motorized units  23 B,  23 C respectively. 
     The first air propeller  21 B is supported at a bottom side of the floating body  11  of the toy body  10  for creating an air dynamic underneath the toy body  10 . The air dynamic at the bottom side of the toy body  10  will either create an upward elevating force to elevate the toy body  10  or create a downward dropping force to drop down the toy body  10 . Accordingly, the first air propeller  21 B is activated to rotate in order to control an altitude of the toy body  10  via the air dynamic, i.e. the up and down movement of the toy body  10 . The first air propeller  21 B comprises a plurality of airfoil-shaped blades for transmitting rotational motion into thrust. 
     In particular, the first air propeller  21 B is supported at a horizontal level, i.e. the driving shaft  231 B is downwardly extended from the motorized unit  23 B, wherein the first air propeller  21 B is rotated horizontally. For example, when the first air propeller  21 B is driven to horizontally rotate at the clockwise direction, the toy body  10  will be lifted upwardly. When the first air propeller  21 B is driven to horizontally rotate at the counter clockwise direction, the toy body  10  will be dropped downwardly. 
     The second air propeller  21 C is supported at a vertical level, i.e. the driving shaft  231 C is sidewardly extended from the motorized unit  23 C, wherein the second air propeller  21 C is rotated vertically. For example, when the second air propeller  21 C is driven to vertically rotate at the clockwise direction, the toy body  10  is driven to turn at a left direction. When the second air propeller  21 C is driven to vertically rotate at the counter clockwise direction, the toy body  10  is driven to turn at a right direction. 
     The operative housing  22 B is mounted at the bottom side of the floating body  11  of the toy body  10 , wherein the first and second air propellers  21 B,  21 C are separately housed in the operative housing  22 B to create the air dynamic within the operative housing  22 B. In particular, the operative housing  22 B is shaped in an aerodynamic configuration, wherein the operative housing  22 B has an enlarged head portion  221 B to receive the first and second air propellers  21 B,  21 C therein, and an elongated tail portion  222 B extended toward a tail portion of the toy body  10 , i.e. the tail body of the toy body  10 . The operative housing  22 B further has a curved front surface  223 B at the front side of the head portion  221 B and a streamlined bottom surface  224 B extended from the head portion  221 B to the tail portion  222 B for reducing an air drag of the operative housing  22 B. 
     The operative housing  22 B further has a plurality of side air vents  225 B formed at two sidewalls of the head portion  221 B and a plurality of bottom air vents  226 B formed at the bottom surface  224 B at the head portion  221 B. It is worth mentioning that through the side air vents  225 B and the bottom air vents  226 B, the first and second air propellers  21 B,  21 C can create a difference between the controllable air pressure and the surrounding air pressure at either side of the operative housing  22 B. Accordingly, the first and second air propellers  21 B,  21 C within the operative housing  22 B are individually activated to create the controllable air pressure within the operative housing  22 B in relation to the surrounding air pressure outside the operative housing  22 B. 
     The first and second motorized units  23 B,  23 C are operatively connected to the first and second air propellers  21 B,  21 C to individually drive the first and second air propellers  21 B,  21 C to rotate for creating a controllable air pressure underneath the toy body  10  at the floating body  11  thereof. 
     For the first air propeller  21 B, when the controllable air pressure is lesser than a surrounding air pressure, the toy body  10  is elevated in the air, and when the controllable air pressure is higher than the surrounding air pressure, the toy body  10  is dropped down in the air. It is worth mentioning that through the side air vents  225 B and the bottom air vents  226 B, the first air propeller  21 B can create a difference between the controllable air pressure and the surrounding air pressure. 
     According to the preferred embodiment, each of the first and second motorized units  23 B,  23 C is a DC motor and is controlled to generate a reversible rotating power to selectively drive the first and second air propeller  21 B,  21 C between two opposite rotating directions. In other words, when one of the first and second air propellers  21 B,  21 C is driven to rotate at a forward direction, the controllable air pressure will be reduced in the operative housing  22 B. When one of the first and second air propellers  21 B,  21 C is driven to rotate at a backward or reversed direction, the controllable air pressure will be increased in the operative housing  22 B. 
     For the first air propeller  21 B, when the controllable air pressure is different the surrounding air pressure at the bottom side of the operative housing  22 B, the toy body  10  is driven to change the altitude thereof in the air. In other words, when the controllable air pressure is lower than the surrounding air pressure at the bottom side of the operative housing  22 , the toy body  10  is driven to elevate. When the controllable air pressure is higher than the surrounding air pressure at the bottom side of the operating housing  22 , the toy body  10  is driven to drop downward. 
     For the second air propeller  21 C, when the controllable air pressure is different the surrounding air pressure at one side of the operative housing  22 B, the toy body  10  is driven to turn its direction in the air. In other words, when the controllable air pressure is lower than the surrounding air pressure at the right side of the operative housing  22 , the toy body  10  is driven to turn left. When the controllable air pressure is lower than the surrounding air pressure at the left side of the operating housing  22 , the toy body  10  is driven to turn right. 
     As shown in  FIG. 4 , the operation housing  22 B further has a first compartment  227 B, a second compartment  228 B, and a partition wall  229 B formed between the first and second compartments  227 B,  228 B. The first and second compartments  227 B,  228 B are preferably formed at the head portion  221 B of the operation housing  22 B, wherein the first and second air propellers  21 B,  21 C are respectively supported within the first and second compartments  227 B,  228 B respectively. In particular, the first and second motorized units  23 B,  23 C are also received in the first and second compartments  227 B,  228 B respectively. 
     The first and second compartments  227 B,  228 B are partitioned by the partition wall  229 B such that the first compartment  227 B is located in front of the second compartment  228 B. In other words, the first and second compartments  227 B,  228 B are aligned with the centerline of the toy body  10 . The partition wall  229 B is arranged for preventing the air-communication between the first and second compartments  227 B,  228 B. Therefore, when the first air propeller  21 B is operated to create the controllable air pressure at the first compartment  227 B, the controllable air pressure within the second compartment  228 B will not be affected. Likewise, when the second air propeller  21 C is operated to create the controllable air pressure at the second compartment  228 B, the controllable air pressure within the first compartment  227 B will not be affected. In particular, when both the first and second air propellers  21 B,  21 C are operated at the same time to create the controllable air pressure at the first and second compartments  227 B,  228 B, the controllable air pressure within the first and second compartments  227 B,  228 B will not be affected each other. 
     It is appreciated that the first and second air propellers  21 B,  21 C are respectively supported within the second and first compartments  228 B,  227 B respectively, wherein the first and second motorized units  23 B,  23 C are also received in the second and first compartments  228 B,  227 B respectively. 
     As shown in  FIG. 4 , the driving device  20 B further comprises a battery compartment  24 B for replaceably receiving a battery thereat to electrically connect to the first and second motorized units  23 B,  23 C and to the first and second air propellers  21 B,  21 C. The battery compartment  24 B is provided at the tail portion  222 B of the operative housing  22 B. The driving device  20 B further comprises a mounting platform  25 B securely coupled at the bottom side of the toy body  10  via glue, double-sided adhering layer, hook and loop fasteners or the like. The mounting platform  25 B provides a flat supporting surface that the first and second motorized units  23 B,  23 C are mounted at the front portion to support the first and second air propellers  21 B,  21 C and the battery compartment  24 B is provided at the rear portion of the mounting platform  25 B. The operative housing  22 B is detachably coupled with the mounting platform  25 B to enclose the first and second air propeller  21 B,  21 C, the first and second motorized units  23 B,  23 C, and the battery compartment  24 B. 
     According to the preferred embodiment, the remote controller  30  is remotely controlling the driving device  20 B to individually operate the first and second air propellers  21 B,  21 C. In particular, the remote controller  30  is wirelessly control the driving device  20  and the steering device  40 . Therefore, the remote controller  30  is arranged to control the altitude of the toy body  10  via the driving device  20 B, and is arranged to control the steering and propelling of the toy body  10  via the steering device  40 . 
     One skilled in the art will understand that the embodiment of the present invention as shown in the drawings and described above is exemplary only and not intended to be limiting. 
     It will thus be seen that the objects of the present invention have been fully and effectively accomplished. It embodiments have been shown and described for the purposes of illustrating the functional and structural principles of the present invention and is subject to change without departure from such principles. Therefore, this invention includes all modifications encompassed within the spirit and scope of the following claims.