Abstract:
A controller of a portable game machine comprises a steering wheel having a body and a rotary unit; a base for locating a portable game machine; a supporting frame for supporting the seat to the steering wheel; and a steering wheel seat for supporting the rotary unit of the steering wheel to a body. The piezoelectric switch is placed on the base, by mechanic linear power transfer, functions of the portable game machine is controlled by operation the steering wheel. By levers to transfer power, the function keys of the steering wheel are corresponding to function keys of the portable game machine.

Description:
FIELD OF THE INVENTION  
       [0001]     The present invention relates to portable game machines, and in particularly to a controller used for a portable game machine, wherein the controller has a steel wheel so that the actions of the functions keys of the game machine can be changed as the action of the steel wheel of the controller. The power transfer of the controller to the portable game machine is achieved mechanically without needing electric power.  
       BACKGROUND OF THE INVENTION  
       [0002]     Generally, the game machines are quipped with handlebar controller in selling, but no steering wheel is equipped. In some games, such as automobile or car racing game, the steering wheel is a convenient tool for operation, but frequently, the users use handlebars as controllers. This is very inconvenient.  
       SUMMARY OF THE INVENTION  
       [0003]     Accordingly, the primary object of the present invention is to provide a controller used for a portable game machine, wherein the controller has a steel wheel so that the actions of the functions keys of the game machine can be changed as the action of the steel wheel of the controller. The power transfer of the controller to the portable game machine is achieved mechanically without needing electric power.  
         [0004]     To achieve above objects, the present invention provides A controller of a portable game machine comprises a steering wheel having a body and a rotary unit; a base for locating a portable game machine; a supporting frame for supporting the seat to the steering wheel; and a steering wheel seat for supporting the rotary unit of the steering wheel to a body. The piezoelectric switch is placed on the base, by mechanic linear power transfer, functions of the portable game machine is controlled by operating the steering wheel. By levers to transfer power, the function keys of the steering wheel are corresponding to function keys of the portable game machine.  
         [0005]     The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0006]      FIG. 1  is an exploded perspective view of the embodiment of the present invention.  
         [0007]      FIG. 2  is a perspective view of the embodiment of the present invention. 
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0008]     In order that those skilled in the art can further understand the present invention, a description will be described in the following in details. However, these descriptions and the appended drawings are only used to cause those skilled in the art to understand the objects, features, and characteristics of the present invention, but not to be used to confine the scope and spirit of the present invention defined in the appended claims.  
         [0009]     Referring to the drawings, the controller of a portable game machine of the present invention is illustrated. The present invention has the following the elements.  
         [0010]     A steering wheel  10  has a body  11 , a function key unit  12 , a liner power transfer unit  13  (not shown), and a rotary unit  14 . In this the present invention, the body  11  is a plane steering wheel having a U shape, but it can has other shapes, for example, a round steering wheel. The function key unit  12  has a plurality of function keys distributed on a surface of the body  11  so that the user can control it smoothly.  
         [0011]     The power transfer unit  13  serves to connect the function keys of a portable game machine  5  to the functions keys in the function key unit  12  of the body  11  by using transfer steel lines to connect the function keys of the functional key unit  12  to a base assembly  20  of the portable game machine  5 . Furthermore, in the present invention, the power transfer unit includes one of gear power transfer sets, cam power transfer sets, inclined surface power transfer sets, lever power transfer sets, pneumatic power transfer sets and hydraulic power transfer sets.  
         [0012]     The rotary unit  14  has a spindle, a rotation angle stop, and an angle actuating unit. The spindle is a hollow plastic shaft for accumulating the steel lines. The rotation angle stop serves to confine the rotation angle of the body  11 . The angle actuating unit is a line transfer and pulley differential movement design.  
         [0013]     The body  11  rotates through  120  degrees. A restoring spring is installed between the rotary unit  14  and a rotary unit supporter  42 . The spring has a fixing sheet for fixing the steel lines and a flexible tube. The steel lines are wound around the spring. The rotation of the rotary unit  14  will drive the steel lines. The rotation angle stop is installed to the spring so as to confine the movement of the spring so as to confine the movement of the rotary unit.  
         [0014]     A base  20  serves for placing the portable game machine  5  and for driving the function keys of the portable game machine  5 . The base  20  has a display screen  21 , a cover opening unit  22 , and a receiving box  23 . The display screen  21  is made of transparent material. The display screen  21  is a plane embedding type or has a frame. The cover opening unit  22  is used as a cover of the portable game machine  5 . The cover opening unit  22  is installed with linkage levers. Preferably, the cover opening unit  22  is a shallow and thin structure (for example, a strengthened aluminum thin levers). The cover opening unit  22  can be opened by opening buckles or rotating a spindle. The receiving box  23  serves to receive the portable game machine  5 . A periphery of the receiving box  23  is mounted with terminal transfer lines (or PSP levers).  
         [0015]     A supporting frame assembly  30  for supporting the base of the portable game machine  5  to the steering wheel  10 . The supporting frame assembly  30  is a fixed and undetachably structure. The assembly  30  has a supporting frame  31  and a rear cover  32 . If the supporting frame assembly  30  is a detachable structure, it can be a bus. The supporting frame  31  is made of iron for increasing the strength of the structure and for balancing. The rear cover  32  serves for shielding the transfer unit  13 . If it is detachable, it is a bus transfer unit, or a servo conductive wire or a transfer lever, or a driving gear set, etc.  
         [0016]     The steering wheel seat  40  serves for supporting the rotary unit  14  and fixing the body. The steering wheel seat  40  has a casing  41 , a rotary unit supporter  42 , and a seat retainer  43 . The casing  40  serves to enclose the steering wheel seat  40 . The rotary unit supporter  42  serves to support the rotary unit  14  to the seat. The seat retainer  43  is for example, a rubber suction disk or a clamper.  
         [0017]     In use of the present invention, the portable game machine  5  is portable in various places. The controller  1  has the base  30 . When the cover opening unit is operated, the portable game machine  5  is placed into the receiving box  23  and then the cover is closed and a screw rod is locked. As shown in  FIG. 2 .  
         [0018]     In the steering wheel  10  of the controller  1  of the present invention, the control of pressing keys is changed as control the rotation of the steel wheel  10 . This is achieved by a linear power transfer. The rotation of the steer wheel must be linked to the action of the keys of the portable game machine  5 . For example, when the steer wheel  10  rotates leftwards, the action must be coupled to the keys for rotating leftwards, and vice versa. When an action of actuating the accelerator is performed in the controller, the action must be transferred to the key for acceleration in the game machine. When a braking action is performed in the controller, the action must be transferred to the key for braking in the game machine.  
         [0019]     Moreover, the power transfer of the present invention does not need any electric power. The line power transfer is performed by inclined surfaces, levers, or direction change units, etc so as to change the direction of power transfer from the controller to the game machine. Thereby, many actions, such as turn leftwards, turn rightwards, accelerating, braking, illumination of lights (front lights, backlights, etc.) are performed by the controller of the present invention to control the game machine by using soft lines or hard mechanic tools.  
         [0020]     Moreover, since generally the power of the portable game machine is chargeable, but the power stored is finite. Because the controller of the present invention is electric-powerless, it can save more power in the game machine so that the portable game machine has a longer time for use without charge. This is a benefit of the present invention.  
         [0021]     The present invention is thus described, it will be obvious that the same may be varied in many ways. Such variations ate not to be regarded as a departure from the spirit and scope of the present invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.