Abstract:
An exercising device includes a support frame, a pivot unit, a footrest, a backrest bar, and two armrests. The exercising device can be swiveled leftward and rightward and can be pivoted upward and downward. In addition, the user can practice the skill of upside down. Thus, the user can exercise his feet, back and waist.

Description:
BACKGROUND OF THE INVENTION  
       [0001]     1. Field of the Invention  
         [0002]     The present invention relates to an exercising device, and more particularly to an exercising device that can be swiveled horizontally and pivoted vertically simultaneously.  
         [0003]     2. Description of the Related Art  
         [0004]     A conventional exercising device can provide a body exercising effect. For example, the swivel device can be swiveled leftward and rightward, and the pivot device can be pivoted upward and downward. In addition, the user can practice the skill of upside down by an upside-down device. However, the conventional exercising device can only provide a single body exercising effect, thereby limiting the versatility of the conventional exercising device.  
       SUMMARY OF THE INVENTION  
       [0005]     The primary objective of the present invention is to provide an exercising device that can be swiveled leftward and rightward.  
         [0006]     Another objective of the present invention is to provide an exercising device that can be pivoted upward and downward.  
         [0007]     A further objective of the present invention is to provide an exercising device, wherein the user can practice the skill of upside down.  
         [0008]     A further objective of the present invention is to provide an exercising device, wherein the user can exercise his feet, back and waist.  
         [0009]     In accordance with the present invention, there is provided an exercising device, comprising a support frame, a pivot unit, a footrest, wherein:  
         [0010]     the support frame includes a front stand, a rear stand pivotally connected with the front stand, and a pivot shaft pivotally mounted between the front stand and the rear stand;  
         [0011]     the pivot unit is pivotally mounted on the support frame and includes an operation lever pivotally mounted on the pivot shaft of the support frame, and a threaded swivel shaft rotatably mounted on the operation lever; and  
         [0012]     the footrest is mounted on the pivot unit and includes a fixed section having a first end secured on an upper end of the swivel shaft of the pivot unit to rotate therewith, and a movable section having a first end movably mounted in the fixed section and a second end protruded outward from a second end of the fixed section.  
         [0013]     Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0014]      FIG. 1  is a perspective view of an exercising device in accordance with the preferred embodiment of the present invention;  
         [0015]      FIG. 2  is an exploded perspective view of the exercising device as shown in  FIG. 1 ;  
         [0016]      FIG. 3  is a partially enlarged exploded perspective view of the exercising device as shown in  FIG. 1 ;  
         [0017]      FIG. 4  is a partially cut-away side plan cross-sectional view of the exercising device as shown in  FIG. 1 ;  
         [0018]      FIG. 5  is a partially enlarged view of the exercising device as shown in  FIG. 4 ;  
         [0019]      FIG. 6  is a partially cut-away top plan view of the exercising device as shown in  FIG. 1 ;  
         [0020]      FIG. 7  is a schematic operational view of the exercising device as shown in  FIG. 6  in use;  
         [0021]      FIG. 8  is a schematic side plan operational view of the exercising device as shown in  FIG. 1  in use; and  
         [0022]      FIG. 9  is a schematic side plan operational view of the exercising device as shown in  FIG. 1  in use. 
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0023]     Referring to the drawings and initially to  FIGS. 1-5 , an exercising device  1  in accordance with the preferred embodiment of the present invention comprises a support frame  11 , a pivot unit  12 , a footrest  13 , a backrest bar  14 , and two armrests  15 .  
         [0024]     The support frame  11  is substantially inverted V-shaped, and includes a front stand  111 , a rear stand  112  pivotally connected with the front stand  111 , and a pivot shaft  113  pivotally mounted between the front stand  111  and the rear stand  112 . The front stand  111  of the support frame  11  is substantially U-shaped, and has an upper end provided with a tube  114  having a mediate portion formed with an opening  115 . The rear stand  112  of the support frame  11  is substantially U-shaped, and has an upper end provided with two opposite mounting tubes  116  each mounted on the tube  114  of the front stand  111  and provided with a crossbar  117  located below the two mounting tubes  116 . The crossbar  117  has a mediate portion provided with a stop block  119 . The rear stand  112  of the support frame  11  is provided with two opposite mounting sleeves  118 . The pivot shaft  113  of the support frame  11  is extended through the two mounting tubes  116  of the rear stand  112  and the tube  114  of the front stand  111 .  
         [0025]     The pivot unit  12  is pivotally mounted on the support frame  11 , and includes an operation lever  121  pivotally mounted on the pivot shaft  113  of the support frame  11 , and a threaded swivel shaft  124  rotatably mounted on the operation lever  121 . The operation lever  121  of the pivot unit  12  is located in the opening  115  of the tube  114  of the front stand  111  and is formed with a transverse hole  121   b  for passage of the pivot shaft  113  of the support frame  11 . The operation lever  121  of the pivot unit  12  has a mediate portion formed with a shaft hole  121   a  for passage of the swivel shaft  124 .  
         [0026]     The footrest  13  is mounted on the pivot unit  12  and includes a fixed section  131  having a first end secured on an upper end of the swivel shaft  124  of the pivot unit  12  to rotate therewith, and a movable section  132  having a first end movably mounted in the fixed section  131  and a second end protruded outward from a second end of the fixed section  131 . The footrest  13  further includes a seat plate  134  secured on the first end of the fixed section  131 . The footrest  13  further includes an arc-shaped connecting seat  138  secured on the second end of the movable section  132 , and a footrest seat  133  secured on the connecting seat  138  by a plurality of screw members  139 . The second end of the fixed section  131  of the footrest  13  has a top formed with a positioning hole  135 , the movable section  132  of the footrest  13  has a top formed with a plurality of threaded adjusting holes  137 , and the footrest  13  further includes a threaded adjusting member  136  extended through the positioning hole  135  of the fixed section  131  and screwed into a respective one of the adjusting holes  137  of the movable section  132 .  
         [0027]     The pivot unit  12  further includes an upper bearing  122  mounted on the swivel shaft  124  and located between the fixed section  131  of the footrest  13  and the operation lever  121  of the pivot unit  12 , a nut  125  screwed on a lower end of the swivel shaft  124 , and a lower bearing  123  mounted on the swivel shaft  124  and located between the operation lever  121  of the pivot unit  12  and the nut  125 .  
         [0028]     Each of the upper bearing  122  and the lower bearing  123  includes a mounting ring d, a fixing race f secured on the mounting ring d, and a ball ring e mounted between the mounting ring d and the fixing race f.  
         [0029]     The operation lever  121  of the pivot unit  12  has a first end formed with a through hole  121   c , the first end of the fixed section  131  has a bottom formed with a threaded locking hole  1310 , and the pivot unit  12  further includes a threaded fixing member  126  extended through the through hole  121   c  of the operation lever  121  and screwed into the locking hole  1310  of the fixed section  131 , so that the fixed section  131  of the footrest  13  is fixed on the operation lever  121  of the pivot unit  12 . The operation lever  121  of the pivot unit  12  has a second end that can be pivoted to abut the stop block  119  of the support frame  11 .  
         [0030]     The backrest bar  14  is substantially L-shaped, and has a horizontal section secured on the fixed section  131  of the footrest  13  by a fixing member  142  and a vertical section provided with a backrest  141 .  
         [0031]     Each of the two armrests  15  is mounted on the rear stand  112  of the support frame  11  and has a lower end inserted into a respective one of the two mounting sleeves  118 .  
         [0032]     In operation, referring to  FIGS. 6 and 7  with reference to  FIGS. 1-5 , the fixing member  126  of the pivot unit  12  is unscrewed from the locking hole  1310  of the fixed section  131 , so that the fixed section  131  of the footrest  13  is released from the operation lever  121  of the pivot unit  12 . Then, the swivel shaft  124  can be rotated on the operation lever  121  of the pivot unit  12 , so that the fixed section  131  and the seat plate  134  of the footrest  13  can be swiveled on the operation lever  121  of the pivot unit  12  the swivel shaft  124 , thereby achieving the effect of exercising the user&#39;s feet and waist.  
         [0033]     Referring to  FIG. 8  with reference to  FIGS. 1-5 , the fixing member  126  of the pivot unit  12  is screwed into the locking hole  1310  of the fixed section  131 , so that the fixed section  131  of the footrest  13  is fixed on and combined with the operation lever  121  of the pivot unit  12 . Thus, the fixed section  131  and the seat plate  134  of the footrest  13  and the operation lever  121  of the pivot unit  12  can be pivoted about the pivot shaft  113  of the support frame  11 , thereby achieving the effect of exercising the user&#39;s feet, back and waist.  
         [0034]     Referring to  FIG. 9  with reference to  FIGS. 1-5 , the backrest bar  14  is removed from the fixed section  131  of the footrest  13 . Then, the fixed section  131  and the seat plate  134  of the footrest  13  and the operation lever  121  of the pivot unit  12  can be pivoted about the pivot shaft  113  of the support frame  11  until the second end of the operation lever  121  of the pivot unit  12  is rested on the stop block  119  of the support frame  11 , so that the footrest seat  133  of the footrest  13  is located higher than the pivot shaft  113  of the support frame  11 , thereby facilitating the user practicing the skill of upside down.  
         [0035]     Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention.