Abstract:
A kung fu training device of the present invention mainly includes a base portion, a body portion and two arms. The body portion is disposed on the base portion. The body portion includes a vertical rod, a lateral rod and a wrapping element. The lateral rod is firmly disposed on the vertical rod. The wrapping element covers the rods. The arms are disposed on the body portion. The arms are height-adjustable and relative-distance-adjustable. As such, the kung fu training device is suitable for trainees with different body sizes, and almost whole training device can be attack by trainees without injury.

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a kung fu training device, more particularly to a durable and safe training device that can adjust the heights of and the relative distance between two hitting pads. 
     2. Description of the Prior Art 
     A typical kung fu training device is as disclosed in US2009/0264262. This kind of training device has a main frame for supporting several hitting pads which are adjustable for trainees, so that these training devices are durable and adjustable. To keep the function above, the main frame can not be covered by pads. 
     However, the training device is failed in protecting trainees. The main frame of the training device is exposed. Trainees, especially the rookies, may possibly hit the main frame to be injured. As a result, this kind of situation may stop the rookies&#39; interest in kung fu. 
     There is another kind of training device disclosed in U.S. Pat. No. 7,357,760. This kind of training device does a better protection for trainees. Almost whole training device is covered by a pad. Unfortunately, this kind of training device is unable to be adjusted for trainees. 
     The present invention is, therefore, arisen to obviate or at least mitigate the above mentioned disadvantages. 
     SUMMARY OF THE INVENTION 
     The main object of the present invention is to provide a training device which is adjustable and safe to be used. 
     To achieve the above and other objects, a kung fu training device of the present invention includes a base portion, a body portion, two arms and tow first pins. The base portion has a seat portion extending upward. The body portion comprises a vertical rod, a lateral rod and a wrapping element. The vertical rod has a bottom end, a first body section and a top end. The bottom end is disposed on the seat portion. The first body section connects the bottom end to the top end. The lateral rod has two pivoting ends and a second body section. The second body section connects one of the pivoting ends to the other. The second body section is firmly disposed on the first body section. Each pivoting end is formed with a right polygonal hole and a first fixation hole. The right polygonal holes and the lateral rod are coaxial. The first fixation hole communicates with its corresponding right polygonal hole. The wrapping element is foamed material. The wrapping element covers the first body section, the top end, the pivoting ends and the second body section. The wrapping element is formed with two grooves. Each groove communicates with one of the first fixation holes. The right polygonal holes are uncovered, so that the right polygonal holes communicate with the surrounding. Each arm comprises a right polygonal rod, a stretching rod and a fist pad. Each right polygonal rod has plurality of side surfaces. Each side surface is parallel to the longitudinal direction of the right polygonal rod. Several of the side surfaces are formed with a set of bores. Each set of bores comprises plurality of first positioning holes. The first positioning holes of each set of bores are arranged along the right polygonal rod. Each right polygonal rod is received in one the right polygonal holes. Each first fixation hole communicates with one of the first positioning holes. A shoulder angle is defined by the right polygonal rod and the stretching rod. Each stretching rod connects its corresponding right polygonal rod to its corresponding fist pad. The first pins are removably inserted in the grooves, the first fixation holes and their corresponding first positioning holes, so that each right polygonal rod and their corresponding pivoting end are immovable with respect to each other. 
     The present invention will become more obvious from the following description when taken in connection with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment(s) in accordance with the present invention. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view showing a kung fu training device of the present invention; 
         FIG. 2  is a breakdown drawing showing a kung fu training device of the present invention; 
         FIG. 2A  is a partial enlargement perspective view showing the body portion of the present invention; 
         FIG. 3  is a front view showing a kung fu training device of the present invention; 
         FIG. 4  is a front view showing a usage state of a kung fu training device of the present invention; 
         FIG. 5  is a side view showing another usage state of a kung fu training device of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Please refer to  FIG. 1  and  FIG. 2  for an embodiment of the present invention. The Kung fu training device includes a base portion  1 , a body portion  2 , two arms  3 , two first pins  4 , two protecting pads  5  and two second pins  6 . 
     The base portion  1  has a seat portion  11 , which upwardly extends. The seat portion  11  is adapted for a rod or a socket to be disposed thereon. The seat portion  11  may be formed with several grooves  111 . The base portion  1  has a considerable weight so that the center of gravity of the whole set of the kung fu training device lies within the periphery of the base portion  1 . Preferably, the base portion  1  has an inner space to stuff liquid, such as water, or solid particles, such as sand, therein. 
     The body portion  2  includes a wrapping element  21 , a vertical rod  22  and a lateral rod  23 . The vertical rod  22  has a bottom end  221 , a first body section  222  and a top end  223 . The bottom end  221  is formed with a bottom hole  224 . The bottom hole  224  and the vertical rod  22  are coaxial. The seat portion  11  is received in the bottom hole  224 . Several screws are used to further fix the bottom end  221  and the seat portion  11 . As such, the vertical rod  22 , which is firmly disposed on the base portion  1 , extends upwardly. The bottom end  221  may be formed with several ribs (not shown) to engage with the grooves  111  of the seat portion  11 , so that the vertical rod  22  can not be rotated with respect to the base portion  1 . The first body section  222  connects the bottom end  221  to the top end  223 . 
     The lateral rod  23  has two pivoting end  231  and a second body section  232 . The second body section  232  connects one of the pivoting ends  231  to the other. The second body section  232  is firmly disposed on the first body section  222 . The lateral rod  23  and the vertical rod  22  are perpendicular to one another. Each pivoting end  231  is formed with a right polygonal hole  233  and a first fixation hole  234 . The right polygonal holes  233  and the lateral rod  23  are coaxial. Each first fixation hole  234  communicates with its corresponding right polygonal hole  233 . 
     The wrapping element  21  is foamed material. The wrapping element  21  covers the first body section  222 , the top end  223 , the pivoting ends  231  and the second body section  232 . The bottom end  221  is not covered by the wrapping element  21 . In other possible embodiments, the wrapping element  21  may cover the bottom end  221 . But, the bottom hole  224  should still be uncovered. The right polygonal holes  233  are uncovered, so that the right polygonal holes  233  communicate with the surrounding. The wrapping element  21  is formed with two grooves  211 . The grooves  211  communicate with the first fixation holes  234  respectively. 
     Both of the arms  3  include a right polygonal rod  31 , a stretching rod  32  and a fist pad  33 . Each right polygonal rod  31  has plurality of side surfaces. The side surfaces are parallel to the longitudinal direction of their corresponding right polygonal rod  31 . The side surfaces are formed with sets of bores respectively. Each set of bores includes several first positioning holes  34 . The first positioning holes  34  are arranged along the right polygonal rod  31 . The profile of the right polygonal rods  31  and the profile of the right polygonal holes  233  correspond to one another, so that the right polygonal rods  31  are slidably received in the right polygonal holes  233 , and the right polygonal rods  31  can not rotate with respect to the pivoting ends  231 . Each first fixation hole  234  communicates with one of the first positioning holes  34 . 
     The stretching rod  32  may include a sleeve  321  and a linking pole  322 . The sleeve  321  is firmly disposed on the right polygonal rod  31 . The sleeve  321  is not parallel to the right polygonal rod  31 , so that a shoulder angle is defined by the right polygonal rod  31  and the stretching rod  32 . Preferably, the shoulder angle is a perpendicular angle. The sleeve  321  is formed with a second fixation hole (not shown). The linking pole  322  has a first section  323  and a second section  324 . The first section  323  is formed with plurality of second positioning holes  325 . The first section  323  is received in the sleeve  321 . The second fixation hole communicates with one of the second positioning holes  325 . Each profile of the sleeve  321  and the first section  323  may be a right polygon. A forearm angle is defined by the first section  323  and the second section  324 . The forearm angle may be 15 degrees, so that the arm portion  3  is similar to a human arm. The second section  324  has a coil spring  326 . The coil spring  326  extends along the longitudinal direction of the second section  324 . In other possible embodiments, the first section  323  may also have a coil spring. The linking pole  322  has a flange  327 . The fist pad  33  is disposed on the second section  324 , so that the stretching rod  32  connects its corresponding right polygonal rod  31  to its corresponding fist pad  33 . In other possible embodiments, each stretching rod  32  may be a single hollow or solid rod. 
     The first pin  4  is removably inserted in the groove  211 , the first fixation hole  234  and the first positioning hole  34 , so that the right polygonal rod  31  and the pivoting end  231  are immovable with respect to each other. The first pin  4  may be threaded, and the first fixation hole  234  or the first positioning hole  34  may be threaded, too. As such, the first pin  4  can hardly leave the first fixation hole  234  and the first positioning hole  34  unexpected. Preferably, the first pin  4  is entirely received in the groove  211 . 
     The protecting pad  5  is foamed material. The protecting pad  5  covers the linking pole  322 . The protecting pad  5  can also cover the coil spring  326 . Preferably, the protecting pad  5  is disposed between the flange  327  and the fist pad  33 . 
     The second pin  6  is removably inserted in the second fixation hole and the second positioning hole  325 , so that the sleeve  321  and the linking pole  322  are immovable with respect to each other. The second pin  6  may be threaded, and the second fixation hole or the second positioning hole  325  may be threaded, too. As such, the second pin  6  can hardly leave the second fixation hole and the second positioning hole  325  unexpected. 
     Accordingly, please refer to  FIG. 3  and  FIG. 4 , the first pin  4  may insert in one first positioning hole  34  or the others of the same set of bores. Therefore, the right polygonal rod  31  can be received in the right polygonal hole  233  in several different depths. The distance between the two arms is adjustable. Similarly, the distance between the fist pad  33  and the right polygonal rod  31  is adjustable. Please refer to  FIG. 5 , the right polygonal rod can be drawn out from the right polygonal hole, and be reinserted into the right polygonal hole after it is rotated about its longitudinal direction. Therefore, the height or the angle of elevation of the arm  3  is adjustable.