Abstract:
A training device includes a motor including a sensor member connected therewith which is electrically connected to a control unit which controls the motor via commands from a user. A torque output unit is connected with an output shaft of the motor and transfers a resistant force to users and to transfers the force from the user to the motor. The torque output unit includes a speed reduction unit and a tension unit so as to transfer proper force between the motor and the users. The users exercise muscles by the vibration provided by the motor which rotates to-and-fro repetitively.

Description:
[0001]    The present invention relates to a Vibration Training device for enhancing muscles power and nerves reaction. 
       BACKGROUND OF THE INVENTION 
       [0002]    An athlete needs strong muscles which reacts fast in the games and the power is a conduct of muscles force and velocity of the retraction of the muscles. The method for enhancing the force of the muscles is to include the number of fibers of the muscles and to increase the size of the muscles. The method for increasing the reaction of the muscles is to train the sensitivity of the nerves so as to enhance the efficiency and speed for dominating the reaction of muscles. 
         [0003]    A conventional training device is shown in  FIG. 1  and generally includes a frame with pulleys connected thereto and a cable has one end connected with a weight and the other end reeve through the pulleys and pulled by the user. The user pulls the cable to lift the weight to exercise his or her muscles. This type of device can only exercise the muscles and cannot help increase the response of nerves of the user.  FIG. 2  shows another training device which is similar to the device disclosed in  FIG. 1  and a vibration unit is cooperated with the cable so that when the user pulls the weight upward, the vibration unit provides vibration to the cable. The vibration unit provides a periodical vibration mode to stimulate the reaction of the nerves of the user so that the user has to use more exercising parts of his or her body to deal with the vibration. 
         [0004]    The conventional training devices are huge so that most of the users cannot have their own training devices at homes. 
         [0005]    The present invention intends to provide a training device which uses a motor cooperated with a torque output unit and a speed reduction unit to generate resistant force when the user operates the training device, and the torque output unit changes the modes of the resistance so as to train the speed of the nerves of the user. 
       SUMMARY OF THE INVENTION 
       [0006]    The present invention relates to a training device that comprises a motor including a sensor member connected therewith which is electrically connected to a control unit which controls the motor via commands from the users. A torque output unit is connected with an output shaft of the motor and transfers a resistant force to users and an operation force from the user to the motor. 
         [0007]    The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0008]      FIG. 1  shows that a user uses a first conventional training device; 
           [0009]      FIG. 2  shows that a user users a second conventional training device; 
           [0010]      FIG. 3  shows that a user uses the training device of the present invention; 
           [0011]      FIG. 4  shows the arrangement of the main parts of the training device of the present invention; 
           [0012]      FIG. 5  shows the relationship between the torque and time of the training device of the present invention; 
           [0013]      FIG. 6  shows the size relationship of the first speed reduction wheel, the second speed reduction wheel and the tension wheel of the speed reduction unit of the training device of the present invention; 
           [0014]      FIG. 7  shows a second embodiment of the training device of the present invention; 
           [0015]      FIG. 8  shows a third embodiment of the training device of the present invention, and 
           [0016]      FIG. 9  shows a user uses the third embodiment of the training device of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0017]    Referring to  FIGS. 3 and 4 , the training device  1  of the present invention comprises a motor  10 , a torque output unit  20  and a control unit  30 . The motor  10  includes a sensor member  11  connected therewith which detects the angular degree and speed of the motor  10  and is electrically connected to the control unit  30  which includes a controller  31  and a control panel  32  so as to control the motor  10  by input commands via the control panel  32 . 
         [0018]    The torque output unit  20  is connected with an output shaft of the motor  10  and includes a speed reduction unit  21  and a tension unit  22 . The speed reduction unit  21  includes a first speed reduction wheel  211  which is connected to the output shaft of the motor  10  and a second speed reduction wheel  212 . A transmission belt  213  is connected between the first and second speed reduction wheels  211 ,  212 . The small output torque with high revolutions can be transferred to high torque with low revolutions. The second speed reduction wheel  212  is connected with the tension unit  22  which includes a tension wheel  220 . A cable  221  is connected to the tension wheel  220  and a handle  222  is connected to the cable  221 . The user holds the handle  222  and pulls the cable  221  to transfer an operation force to the motor  10  via the tension unit  22  and the speed reduction unit  21 , and the motor  10  generates a force to the user according to the commands via the control panel  32 . 
         [0019]    The motor  10  is a brushless permanent magnet motor and includes the features including maximum power (Watt)/horse power (hp), maximum torque, and maximum inertial, maximum speed. The design parameters of the power and the inertial is the diameter of the motor  10 , the speed is the number of magnetic poles and the torque is the thickness of the silicon disks. All of the parameters are set when the motor  10  is manufactured and the maximum revolutions (Nmax) and the torque constant (kt) are pre-set values. 
         [0000]        Kt=C×VD/N max;       VD: terminal voltage of the motor   C: constant=9.55   kt=torque constant of the motor (N−M)/A         
         [0000]    
       
      
       Tm=A×kt;  
      
       
         
           
             Tm: output torque of the motor (N−M); 
             A: input current of the motor (Amp). 
           
         
       
     
         [0025]    The output torque of the motor is proportional to the input current of the motor so that when controlling the current of the motor  10 , the output torque of the motor  10  is controlled. The users can have higher output torque by inputting higher current via the operation of the control panel  32 . 
         [0026]    As shown in  FIG. 5  which shows the relationship between the torque and time of the training device  1  of the present invention, wherein: 
         [0027]    The radius of the tension wheel  220 : r 3 ; 
         [0028]    The ratio of the speed reduction at the output shaft of the motor  10  is r 2 /r 1 ; 
         [0029]    The radius of the first speed reduction wheel  211 : r 1 ; 
         [0030]    The radius of the second speed reduction wheel  211 : r 2 ; 
         [0031]    The operation force from the user: F; 
         [0032]    The torque applied to the tension wheel  220  from the user: Tr; 
         [0000]        Tr=F×r 3; 
         [0000]        Fr=Tr/r 2=( F×r 3)/ R 2; 
         [0033]    Tr applies the force Fr to the second speed reduction wheel  212 . 
         [0034]    The torque that the motor  10  has to generate is Tm so as to balance the torque transferred to the motor  10  via the speed reduction unit  21 . 
         [0000]        Tm=Fr×r 1=( F×r 3× r 1)/ r 2; 
         [0035]    Tm is the upper limit of the torque that the motor outputs and set by users. 
         [0036]    When the user has not yet apply a force to the handle  222 , the sensor member  11  does not detect any operation of the motor  10  so that the controller  30  does not supply current to the motor  10 . When the user applies an operation force which is less than the Tm, the controller  31  inputs a current to the motor  10  to against and balance the operation force. 
         [0037]    When the operation force applies a torque which is equal to the Tm, the user cannot pull the cable  221  because the two forces are in a balance status. 
         [0038]    When the operation force applies a torque which is larger than the Tm, because the controller  31  commands the motor  10  to generate the torque now is smaller than the torque applied by the user, the cable  221  and the handle  222  are pulled away from the tension unit  22  by the user. The sensor member  11  detects the angle that the motor  10  is pulled and the controller  31  memorizes the angle. 
         [0039]    When the operation force applies a torque which is smaller than the Tm, because the controller  31  commands the motor  10  to generate the torque now is larger than the torque applied by the user, the cable  221  and the handle  222  are pulled toward the tension unit  22  by the motor  10 . 
         [0040]    Therefore, the user&#39;s muscles are exercised by the fixed Tm from the motor  10 . 
         [0041]    The training device  1  includes a second operation mode which uses the controller  31  to set the output torque form the motor  10  according to the Tm, and further sets the torque periodically in a form of sine or cosine waves. 
         [0042]    t: the period of time of a cycle (unit: seconds) 
         [0043]    f=1/t the frequency of the torque (unit: Hz) 
         [0044]    ΔT: the change of the torque 
         [0045]    When t=0, the Tm generated by the motor  10  is equal to the torque by the operation force of the user, the cable  221  is remained still. 
         [0046]    When the value of t is between 0 and t/2, the force generated by the motor  10  is larger than the operation force. When t=t/4, the maximum torque is Tm+ΔT, the cable  221  is pulled by the motor  10 . 
         [0047]    When the value of t is equal to t/2, the torque Tm generated by the motor  10  is equal to the torque by the user, the cable  221  is remained still again. 
         [0048]    When the value of t is between t/2 and t, the force generated by the motor  10  is smaller than the operation force. When t=3t/4, the minimum torque is Tm−ΔT, the cable  221  is pulled by the user. 
         [0049]    The adjustment of the frequency f and the change of the torque ΔT, the user&#39;s muscles and the reaction of the user&#39;s nerves is exercised. 
         [0050]      FIG. 7  shows a second embodiment of the training device  1 , wherein the tension unit  22  is replaced by a crank  223  and the user can use hands or feet to operate the crank  223  to drive the speed reduction unit  21 . When the user&#39;s input force is larger than the force generated by the motor  10 , the motor  10  is rotated in opposite direction by the user. When the user&#39;s input force is smaller than the force generated by the motor  10  or the user does not applies any force on the crank, the motor  10  does not generate torque a and the crank  223  is remained still. 
         [0051]      FIGS. 8 and 9  show a third embodiment of the training device  1 , wherein the tension unit  22  is replaced by a driving shaft  231  which is connected with the second speed reduction wheel  212 . An endless belt  232  is connected between the driving shaft  231  and another shaft  233 , and a support board  234  is located beneath of the top surface of the endless belt  232 . The training device  1  can be used as a treadmill 
         [0052]    While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.