Abstract:
A pedal for exercise equipment concentrates foot effort applied for driving and realizes stable stepping of pedal bodies with soles. The pedal includes a pedal body and a connection shaft connected to a crank rod of pedal exercise equipment. A pair of first and second inclination control plates are respectively mounted at the front and rear surfaces of the pedal body, and hinge-connected to the pedal body at the crank rod connection side thereof. A pair of fixing screws fix the second and first inclination control plates to the pedal body, wherein the positioning angle of the sole is set to be larger than 0° for effective driving power transmission to the crank rod, and deviation of the sole from the pedal body is prevented under the free control of the sole positioning angle according to the body type of a user.

Description:
FIELD OF THE INVENTION 
       [0001]    The present invention relates to a pedal of various pedal exercise equipment such as bicycles, wherein it is possible to concentrate foot effort applied for driving and to realize stable stepping of pedal bodies with soles. 
       DESCRIPTION OF THE RELATED ART 
       [0002]    Recently, there have been suggested various kinds of pedal exercise equipment to which the present invention relates. There are, for example, bicycles for traveling roads by rotating wheels using pedals, or bicycle type exercise equipment and lower body correcting equipment for carrying out leg exercise on the spot. 
         [0003]      FIG. 1  shows a perspective view of a prior art pedal of pedal exercise equipment in the assembled state and  FIG. 2  shows a perspective view of the prior art pedal of pedal exercise equipment of  FIG. 1 . 
         [0004]    In pedal exercise equipment as shown in  FIG. 1 , a pedal  100 ′ is usually connected to a driving sprocket  300 ′ via a crank rod  200 ′ and the driving sprocket  300 ′ is connected to a driven sprocket, which is connected to wheels via chains. 
         [0005]    The pedal  100 ′ of pedal exercise equipment, as shown in  FIG. 2 , includes a connection shaft  110 ′ which is connected to the crank rod  200 ′, and a rectangular pedal body  120 ′ which a sole contacts, wherein the body  120 ′ is kept horizontally with respect to the ground surface when the connection shaft  110 ′ is connected to the crank rod  200 ′. 
       SUMMARY OF THE INVENTION 
     Problems that the Invention is to Solve 
       [0006]    Therefore, the positioning angle of the sole of a user, which contacts the front surface of the pedal body  120 ′, is kept in horizontal, so that the sole of the user may be slipped in the right or left direction of the pedal body  120 ′ when the crank rod is rotated by pressing the pedal body  120 ′. If the slippage in the direction opposite the crank rod connection side is severe, the sole of the user may deviate from the pedal body  120 ′. 
         [0007]    Meanwhile, the pedal  100 ′ of pedal exercise equipment promotes effective pedal exercise, wherein large driving force may be obtained from small force as the foot effort is concentrated more on the crank rod connection side in the stepping portion of the pedal body  120 ′. 
         [0008]    However, in the prior art pedal  100 ′ of pedal exercise equipment as shown in  FIG. 1  and  FIG. 2 , the pedal body  120 ′ is formed as a single part and all the top surface and the bottom surface of the pedal body  120 ′ are formed horizontally, so that a foot is pushed towards a side opposite the crank rod connection side of the pedal body  120 ′ as if the foot is slipped away. 
         [0009]    Therefore, it becomes difficult to concentrate the foot effort on the crank rod connection side of the pedal body  120 ′, and the sole becomes gradually slipped away towards the side opposite the crank rod connection side of the pedal body  120 ′ to be likely to deviate from the pedal body  120 ′. 
         [0010]    In addition, in the case of a Mountain Bike MTB, for example, the road surface is particularly bumpy so that the sole is likely to be separated from the contact with the pedal due to impacts. At this time, if a user tries to step on the pedal with his foot, the foot is gradually slipped outwards, deviating from the pedal. Therefore, the normal riding of the bike becomes impossible instantly and safety accidents or the like may be induced. 
         [0011]    Therefore, in order to make the foot effort concentrated on a position which is closest to the crank rod connection side of the pedal body  120 ′ while positioning the sole on the pedal body  120 ′ stably, it is preferable to set the positioning angle of the sole to be larger than 0° by inclining the front surface and the rear surface of the pedal body  120 ′ in such a manner that the crank rod connection side is low and the side opposite the crank rod connection side is high. 
         [0012]    Therefore, the present invention has been accomplished in order to resolve the above-mentioned disadvantages and any other problems, and an object of the present invention is to provide a pedal of pedal exercise equipment, wherein it is possible to set the positioning angle of a sole to be larger than 0° so that the sole may be positioned on the pedal in such a manner that a crank rod connection side is low and the side opposite the crank rod connection side is high. Therefore, it is possible to concentrate the foot effort to the crank rod connection side of the pedal body for promoting effective pedal exercise while positioning the pedal body with the sole stably in order to prevent the sole from deviating from the pedal body. 
         [0013]    The present invention has another object to provide a pedal of pedal exercise equipment, wherein it is possible to freely control the positioning angle of a sole in a predetermined range in consideration of the body type or the like of a user. 
       Means for Solving the Problem 
       [0014]    In order to accomplish the above objects, there is provided a pedal of pedal exercise equipment, which includes: a connection shaft connected to a crank rod of the pedal exercise equipment; a pedal body rotatively connected to the connection shaft; a pair of first inclination control plates respectively mounted at the front surface and the rear surface of the pedal body, and hinge-connected to the pedal body at the crank rod connection side thereof so as to be protruded towards the upper end or the lower end of the pedal body at the side opposite the crank rod connection side; a pair of second inclination control plates respectively mounted at the front surface and the rear surface of the pedal body, and hinge-connected to the pedal body at the crank rod connection side thereof together with the first inclination control plates so as to be protruded towards the lower end or the upper end of the pedal body at the side opposite the crank rod connection side; and a pair of fixing screws coupled with the pedal body by penetrating the second inclination control plates and the first inclination control plates so as to fix the second inclination control plates and the first inclination control plates. 
         [0015]    In the pedal of pedal exercise equipment according to the present invention, the pedal body has hinge screw coupling holes respectively formed in the front surface and the rear surface at the crank rod connection side, a plurality of control screw coupling holes respectively formed in the centers of the front surface and the rear surface at the same interval in the horizontal direction, and fixing screw coupling holes respectively formed in the front surface and the rear surface at the side opposite the crank rod connection side; the first inclination control plates have hinge screw passing holes formed at the crank rod connection side, a plurality of control holes formed in the centers at the same interval in the inclination direction that the crank rod connection side is high and the side opposite the crank rod connection side is low, and fixing screw passing holes formed in the shape of elongated holes at the side opposite the crank rod connection side; and the second inclination control plates have hinge screw passing holes formed at the crank rod connection side, a plurality of control holes formed in the centers at the same interval in the inclination direction that the crank rod connection side is low and the side opposite the crank rod connection side is high, and fixing screw passing holes formed in the shape of elongated holes at the side opposite the crank rod connection side. 
         [0016]    According to the present invention, the pedal of pedal exercise equipment further includes finishing plates respectively mounted at the front portion and the rear portion of the pedal body, wherein the finishing plates have hinge screw passing holes formed at the crank rod connection side, a plurality of control screw passing holes respectively formed in the centers at the same interval in the horizontal direction, and fixing screw passing holes respectively formed at the side opposite the crank rod connection side. 
         [0017]    In the pedal of pedal exercise equipment according to the present invention, the pedal body has the hinge screw coupling holes respectively formed in the front surface and the rear surface at the crank rod connection side, a plurality of control pin connecting holes formed in the shape of elongated holes respectively in the centers of the front surface and the rear surface in the horizontal direction, and fixing screw coupling holes respectively formed in the front surface and the rear surface at the side opposite the crank rod connection side; the first inclination control plates have the hinge screw passing holes formed at the crank rod connection side, control holes formed the shape of stepped elongation holes with a plurality of steps in the centers in the inclination direction that the crank rod connection side is high and the side opposite the crank rod connection side is low, and the fixing screw passing holes formed in the shape of elongated holes at the side opposite the crank rod connection side; the second inclination control plates have the hinge screw passing holes formed at the crank rod connection side, control holes formed in the shape of stepped elongation holes with a plurality of steps in the centers in the inclination direction that the crank rod connection side is low and the side opposite the crank rod connection side is high, and fixing screw passing holes formed in the shape of elongated holes at the side opposite the crank rod connection side; and the control holes of the respective inclination control plates may be formed as elongated holes in the arc shape. 
         [0018]    In the pedal of pedal exercise equipment according to the present invention, a plurality of sliding-preventing indent grooves may be formed at the upper ends and the lower ends of the first inclination control plates and the upper ends and the lower ends of the second inclination control plates. 
       Effects of the Invention 
       [0019]    According to the pedal of pedal exercise equipment of the present invention, a pair of first inclination control plates and a pair of second inclination control plates are respectively protruded with inclinations from the upper end and the lower end of the pedal body so that a sole positioning angle may be set to be larger than 0°. Therefore, a foot may be positioned towards the crank rod connection side of the pedal body, so that large driving force may be obtained with small foot effort. 
         [0020]    In addition, it is also possible to prevent the sole from deviating out of the pedal body. 
         [0021]    Furthermore, according to the pedal of pedal exercise equipment of the present invention, the sole positioning angle may be freely controlled in a predetermined range according to the body type of a user. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0022]    The objects, features and advantages of the present invention will be more clearly understood from the preferred embodiments in the following detailed description in conjunction with the accompanying drawings, in which: 
           [0023]      FIG. 1  is a perspective view of a prior art pedal of pedal exercise equipment, wherein the pedal is in the mounted state. 
           [0024]      FIG. 2  is a perspective view of the pedal of pedal exercise equipment. 
           [0025]      FIG. 3  is a perspective view of a bottom surface of a pedal of pedal exercise equipment according to a first embodiment of the present invention. 
           [0026]      FIG. 4  is a disassembled perspective view of a control screw according to the first embodiment. 
           [0027]      FIG. 5  is a disassembled perspective view of the first embodiment. 
           [0028]      FIG. 6   a  to  FIG. 6   c  are front views of the first embodiment. 
           [0029]      FIG. 7  is a perspective view of a second embodiment of the present invention. 
           [0030]      FIG. 8  is a disassembled perspective view of the second embodiment. 
           [0031]      FIG. 9   a  to  FIG. 9   c  are front views of the second embodiment. 
           [0032]      FIG. 10  is a perspective view of a third embodiment of the present invention. 
           [0033]      FIG. 11  is a disassembled perspective view of the third embodiment. 
           [0034]      FIG. 12   a  to  FIG. 12   c  are front views of the third embodiment. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0035]    Now, a pedal of pedal exercise equipment according to the present invention in order to accomplish the above objects will be described in more detail with reference to the accompanying drawings. 
         [0036]      FIG. 3  is a perspective view of a bottom surface of a pedal of pedal exercise equipment according to a first embodiment of the present invention,  FIG. 4  is a disassembled perspective view of a control screw according to the first embodiment,  FIG. 5  is a disassembled perspective view of the first embodiment, and  FIG. 6   a  to  FIG. 6   c  are front views of the first embodiment. 
         [0037]      FIG. 7  is a perspective view of a second embodiment of the present invention,  FIG. 8  is a disassembled perspective view of the second embodiment,  FIG. 9   a  to  FIG. 9   c  are front views of the second embodiment,  FIG. 10  is a perspective view of a third embodiment of the present invention,  FIG. 11  is a disassembled perspective view of the third embodiment, and  FIG. 12   a  to  FIG. 12   c  are front views of the third embodiment. 
         [0038]    Referring to  FIG. 3  to  FIG. 12   c,  a pedal  100  of pedal exercise equipment according to the present invention includes: a connection shaft  110  connected to a crank rod of pedal exercise equipment; a pedal body  120  rotatively connected to the connection shaft  110 ; a pair of first inclination control plates  130  respectively mounted at the front surface and the rear surface of the pedal body  120 , and hinge-connected to the pedal body  120  at the crank rod connection side thereof so as to be protruded towards the upper end or the lower end of the pedal body  120  at the side opposite the crank rod connection side; a pair of second inclination control plates  140  respectively mounted at the front surface and the rear surface of the pedal body  120 , and hinge-connected to the pedal body  120  at the crank rod connection side thereof together with the first inclination control plates  130  so as to be protruded towards the lower end or the upper end of the pedal body  120  at the side opposite the crank rod connection side; and a pair of fixing screws  150  coupled with the pedal body  120  by penetrating the second inclination control plates  140  and the first inclination control plates  130  so as to fix the second inclination control plates  140  and the first inclination control plates  130 . 
         [0039]    In the pedal  100  of pedal exercise equipment according to the present invention, a pair of the first inclination control plate  130  are rotated so that the side opposite the crank rod connection side is protruded towards the lower end or the upper end of the pedal body  120 . Simultaneously, a pair of the second inclination control plate  140  are rotated so that the side opposite the crank rod connection side is protruded towards the upper end or the lower end of the pedal body  120 , that is, in the direction opposite to the protrusion direction of the first inclination control plate  130 . Therefore, the positioning angle of the sole may be set to be larger than 0°, promoting effective pedal exercise. 
         [0040]    In addition, via the control screw  170  which penetrates the second inclination control plate  140  and the first inclination control plate  130  and is coupled with the pedal body  120 , the second inclination control plate  140  and the first inclination control plate  130  are fixed so that a set sole positioning angle may be stably kept. 
         [0041]    In the pedal  100  of pedal exercise equipment according to the present invention, it is possible to freely control the sole positioning angle, that is, inclination angles of the respective inclination control plates  130  and  140  in a predetermined range by increasing or decreasing protrusion degrees of a pair of the first inclination control plate  130  and a pair of the second inclination control plate  140  towards the side opposite the crank rod connection side. 
         [0042]      FIG. 3  to  FIG. 6   c  show the pedal  100  of pedal exercise equipment according to the first embodiment of the present invention. 
         [0043]    Referring to  FIG. 3  to  FIG. 6   c,  in the pedal  100  of pedal exercise equipment according to the first embodiment of the present invention, the pedal body  120  has hinge screw coupling holes  121  respectively formed in the front surface and the rear surface thereof at the crank rod connection side, a plurality of control screw coupling holes  122  respectively formed in the centers of the front surface and the rear surface at the same interval in the horizontal direction, and fixing screw coupling holes  123  respectively formed in the front surface and the rear surface at the side opposite the crank rod connection side. 
         [0044]    In the pedal  100  of pedal exercise equipment according to the first embodiment, the first inclination control plates  130  have hinge screw passing holes  131  formed at the crank rod connection side, a plurality of control holes  132  formed in the centers at the same interval in the inclination direction that the crank rod connection side is high and the side opposite the crank rod connection side is low, and fixing screw passing holes  133  formed in the shape of elongated holes at the side opposite the crank rod connection side. 
         [0045]    In the pedal  100  of pedal exercise equipment according to the first embodiment, the second inclination control plates  140  have hinge screw passing holes  141  formed at the crank rod connection side, a plurality of control holes  142  formed in the centers at the same interval in the inclination direction that the crank rod connection side is low and the side opposite the crank rod connection side is high, and fixing screw passing holes  143  formed in the shape of elongated holes at the side opposite the crank rod connection side. 
         [0046]    Meanwhile, the pedal  100  of pedal exercise equipment according to the first embodiment includes finishing plates  190  respectively mounted at both sides of the pedal body  120  for preventing damages to the first inclination control plates  130  and the second inclination control plates  140 . 
         [0047]    In the pedal  100  of pedal exercise equipment according to the first embodiment, the finishing plates  190  have hinge screw passing holes  191  formed at the crank rod connection side, a plurality of control screw passing holes  192  respectively formed in the centers at the same interval in the horizontal direction, and fixing screw passing holes  193  respectively formed at the side opposite the crank rod connection side. 
         [0048]    In addition, the finishing plates  190  are provided with outward folding parts  194  at the upper end and the lower end thereof. 
         [0049]    In the pedal  100  of pedal exercise equipment according to the first embodiment, the pedal body  120  is provided with the first inclination plate  130 , the second inclination plate  140 , and finishing plate  190  in sequence in close contact on the front surface thereof, and a hinge screw  160  passes through the hinge screw passing hole  191  of the finishing plate  190 , the hinge screw passing hole  141  of the second inclination control plate  140 , and the hinge screw passing hole  131  of the first inclination control plate  130  so as to be coupled in the hinge screw coupling holes  121  of the front surface of the pedal body  120 . 
         [0050]    The control screw  170  passes through anyone of the control screw passing holes  192  of the finishing plate  190 , anyone of a plurality of the control holes  142  of the second inclination control plate  140 , and anyone of a plurality of the control holes  132  of the first inclination control plate  130  so as to be coupled in the control screw coupling hole  122  of the front surface of the pedal body  120 . 
         [0051]    The fixing screw  150  passes through the fixing screw passing hole  193  of the finishing plate  190 , the fixing screw passing hole  143  of the second inclination control plate  140 , and the fixing screw passing hole  133  of the first inclination control plate  130  so as to be coupled in the fixing screw coupling hole  123  of the front surface of the pedal body  120 . 
         [0052]    In the pedal  100  of pedal exercise equipment according to the first embodiment, the pedal body  120  is provided with the second inclination plate  140 , the first inclination plate  130 , and the finishing plate  190  in sequence in close contact on the rear surface thereof, and the hinge screw  160  passes through the hinge screw passing hole  191  of the finishing plate  190 , the hinge screw passing hole  131  of the first inclination control plate  130 , and the hinge screw passing hole  141  of the second inclination control plate  140  so as to be coupled in the hinge screw coupling holes  121  of the rear surface of the pedal body  120 . 
         [0053]    In addition, the control screw  170  passes through anyone of the control screw passing holes  192  of the finishing plate  190 , anyone of a plurality of the control holes  132  of the first inclination control plate  130 , and anyone of a plurality of the control holes  142  of the second inclination control plate  140  so as to be coupled in the control screw coupling hole  122  of the rear surface of the pedal body  120 . 
         [0054]    The fixing screw  150  passes through the fixing screw passing hole  193  of the finishing plate  190 , the fixing screw passing hole  133  of the first inclination control plate  130 , and fixing screw passing hole  123  of the second inclination control plate  140  so as to be coupled in the fixing screw coupling hole  123  of the rear surface of the pedal body  120 . 
         [0055]    In the pedal  100  of pedal exercise equipment according to the first embodiment, contact bushings  180  are mounted between the hinge screws  160  and the finishing plates  190 , between the control screws  170  and the finishing plates  140 , and between the fixing screws  150  and the finishing plates  190  of the front surface and the rear surface of the pedal body  120 . 
         [0056]    In the meantime, in the pedal  100  of pedal exercise equipment according to the first embodiment, it is possible to simply control a sole positioning angle by changing the coupling positions of the control screws  170 . 
         [0057]    In other words, in order to control the contact angle of a sole and the pedal  100 , the control screws  170  are completely released, the fixing screws  150  are loosely released, and after that, the coupling positions of the control screws  170  are moved towards the side opposite the crank rod connection side. Then, the side opposite the crank rod connection side of each of the first inclination control plates  130  is lifted and simultaneously the side opposite the crank rod connection side of each of the second inclination control plates  140  is lowered, so that the sole positioning angle becomes increased. 
         [0058]    In addition, if the coupling positions of the control screws  170  are moved towards the crank rod connection side, then the side opposite the crank rod connection side of each of the first inclination control plates  130  is lowered and simultaneously the side opposite the crank rod connection side of each of the second inclination control plates  140  is lifted, so that the sole positioning angle becomes decreased. 
         [0059]    In the pedal  100  of pedal exercise equipment according to the first embodiment, as shown in  FIG. 6   a,  if the control screw  170  passes through a first one of the control screw passing holes  192  at the crank rod connection side of the finishing plate  190 , first ones of the control holes  132  and  142  at the at the crank rod connection side of the respectively inclination control plates  130  and  140 , and a first one of the control screw coupling holes  192  at the crank rod connection side of the pedal body  120 , then the sole positioning angle may be controlled to be minimum via the respective first inclination control plates  130  and the respective second inclination control plates  140 . 
         [0060]    As shown in  FIG. 6C , if the control screw  170  passes through a first one of the control screw passing holes  192  at the side opposite the crank rod connection side of the finishing plate  190 , first ones of the control holes  132  and  142  at the at the side opposite the crank rod connection side of the respective inclination control plates  130  and  140 , and a first one of the control screw coupling holes  192  at the side opposite the crank rod connection side of the pedal body  120 , then the side opposite the crank rod connection side of the respective first inclination control plates  130  is lifted maximally and simultaneously the side opposite the crank rod connection side of the respective second inclination control plates  140  is lowered maximally, so that the sole positioning angle may be controlled to be maximum. 
         [0061]    In the pedal  100  of pedal exercise equipment according to the first embodiment, if the coupling position of the control screw  170  is changed and the loosely released fixing screw  150  is fastened again after controlling the sole positioning angle, then the respective inclination control plates  130  and  140  may be stably fixed to the pedal body  120 . 
         [0062]      FIG. 7  to  FIG. 9   c  show a pedal  100  of pedal exercise equipment according to the second embodiment of the present invention. 
         [0063]    Referring to  FIG. 7  to  FIG. 9   c,  in the pedal  100  of pedal exercise equipment according to a second embodiment of the present invention, the pedal body  120  has the hinge screw coupling holes  121  respectively formed in the front surface and the rear surface at the crank rod connection side, control pin connecting holes  122  formed in the shape of elongated holes respectively in the centers of the front surface and the rear surface in the horizontal direction, and fixing screw coupling holes  123  respectively formed in the front surface and the rear surface at the side opposite the crank rod connection side. 
         [0064]    In the pedal  100  of pedal exercise equipment according to the second embodiment of the present invention, the first inclination control plates  130  have the hinge screw passing holes  131  formed at the crank rod connection side, control holes  132  formed the shape of stepped elongation holes with a plurality of steps in the centers in the inclination direction that the crank rod connection side is high and the side opposite the crank rod connection side is low, and the fixing screw passing holes  133  formed in the shape of elongated holes at the side opposite the crank rod connection side. 
         [0065]    In the pedal  100  of pedal exercise equipment according to the second embodiment of the present invention, the second inclination control plates  140  have hinge screw passing holes  141  formed at the crank rod connection side, control holes  142  formed the shape of stepped elongation holes with a plurality of steps in the centers in the inclination direction that the crank rod connection side is low and the side opposite the crank rod connection side is high, and fixing screw passing holes  143  formed in the shape of elongated holes at the side opposite the crank rod connection side. 
         [0066]    In the pedal  100  of pedal exercise equipment according to the second embodiment of the present invention, the pedal body  120  is provided with the first inclination plate  130  and the second inclination plate  140  in sequence in close contact on the front surface thereof, and the hinge screw  160  passes through the hinge screw passing hole  141  of the second inclination control plate  140  and the hinge screw passing hole  131  of the first inclination control plate  130  so as to be coupled in the hinge screw coupling holes  121  of the front surface of the pedal body  120 . 
         [0067]    A control pin  270  in the rivet shape passes through the control hole  142  of the second inclination control plate  140 , the control hole  132  of the first inclination control plate  130 , and the control screw coupling hole  122  of the front surface of the pedal body  120 . The fixing screw  150  passes through the fixing screw passing hole  143  of the second inclination control plate  140  and the fixing screw passing hole  133  of the first inclination control plate  130  so as to coupled in the fixing screw coupling hole  123  of the front surface of the pedal body  120 . 
         [0068]    In the pedal  100  of pedal exercise equipment according to the second embodiment of the present invention, the pedal body  120  is provided with the second inclination plate  140  and the first inclination plate  130  in sequence in close contact on the rear surface thereof, and the hinge screw  160  passes through the hinge screw passing hole  131  of the first inclination control plate  130  and the hinge screw passing hole  141  of the second inclination control plate  140  so as to be coupled in the hinge screw coupling holes  121  of the rear surface of the pedal body  120 . 
         [0069]    The control pin  270  in the rivet shape passes through the control hole  132  of the first inclination control plate  130 , the control hole  142  of the second inclination control plate  140 , and the control screw connection hole  122  of the rear surface of the pedal body  120 . The fixing screw  150  passes through the fixing screw passing hole  133  of the first inclination control plate  130  and the fixing screw passing hole  123  of the second inclination control plate  140  so as to coupled in the fixing screw coupling hole  123  of the rear surface of the pedal body  120 . 
         [0070]    In the pedal  100  of pedal exercise equipment according to the second embodiment of the present invention, the contact bushings  180  are mounted between the hinge screw  160  and the second inclination control plate  140  and between the fixing screw  150  and the second inclination control plate  140  on the front surface of the pedal body  120 , while the contact bushings  180  are mounted between the hinge screw  160  and the first inclination control plate  130  and between the fixing screw  150  and the first inclination control plate  130  on the rear surface of the pedal body  120 . 
         [0071]    In the pedal  100  of pedal exercise equipment according to the second embodiment of the present invention, if the coupling position of the control pin  270  is changed by moving the control pin  270  right and left in the state that the fixing screw  150  is loosely released, then it is possible to simply control the sole positioning angle. 
         [0072]    That is, in order to control the contact angle of a sole and the pedal  100 , the fixing screws  150  are loosely released, and after that, the coupling position of the control pins  270  are moved towards the side opposite the crank rod connection side. Then, the side opposite the crank rod connection side of each of the first inclination control plates  130  is lifted and simultaneously the side opposite the crank rod connection side of each of the second inclination control plates  140  is lowered, so that the sole positioning angle becomes increased. 
         [0073]    In addition, if the coupling position of the control pin  270  are moved towards the crank rod connection side, then the side opposite the crank rod connection side of each of the first inclination control plates  130  is lowered and simultaneously the side opposite the crank rod connection side of each of the second inclination control plates  140  is lifted, so that the sole positioning angle becomes decreased. 
         [0074]    In the pedal  100  of pedal exercise equipment according to the second embodiment of the present invention, as shown in  FIG. 9   a,  if the control pins  270  are moved to the control holes  132  and  142  of the respective inclination control plates  130  and  140  to be moved maximally towards the crank rod connection side of the respective inclination control plates  130  and  140 , then the sole positioning angle may be controlled to be minimum via the respective first inclination control plates  130  and the respective second inclination control plates  140 . As shown in  FIG. 9   c,  if the control pins  270  are moved to the control holes  132  and  142  of the respective inclination control plates  130  and  140  to be moved maximally towards the side opposite the crank rod connection side of the respective inclination control plates  130  and  140 , then the side opposite the crank rod connection side of the respective first inclination control plates  130  is lifted maximally and simultaneously the side opposite the crank rod connection side of the respective second inclination control plates  140  is lowered maximally, so that the sole positioning angle may be controlled to be maximum. 
         [0075]    In the pedal  100  of pedal exercise equipment according to the second embodiment, if the coupling position of the control pin  270  is changed and the loosely released fixing screw  150  is fastened again after controlling the sole positioning angle, then the respective inclination control plates  130  and  140  may be stably fixed to the pedal body  120 . 
         [0076]      FIG. 10  to  FIG. 12   c  show a pedal  100  of pedal exercise equipment according to a third embodiment of the present invention. 
         [0077]    Referring to  FIG. 10  to  FIG. 12   c,  the pedal  100  of pedal exercise equipment according to the third embodiment of the present invention includes the control holes  132  and  142  of the respective inclination control plates  130   140  as shown in the pedal  100  of pedal exercise equipment according to the above second embodiment, wherein even though the control holes  132  and  142  are formed as the elongated holes in the stepped shape in the second embodiment, they are formed as elongated holes in the arc shape in the third embodiment. 
         [0078]    In the pedal  100  of pedal exercise equipment according to the third embodiment of the present invention, it is also possible to simply control the sole positioning angle by changing the coupling positions of the control pins  270  by moving the control pins  270  right and left in the state that the fixing screws  150  are loosely released in the same manner as the case of the pedal  100  of pedal exercise equipment according to the second embodiment. 
         [0079]    As shown in  FIG. 12   a,  if the control pins  270  are moved to the control holes  132  and  142  of the respective inclination control plates  130  and  140  to be moved maximally towards the crank rod connection side of the respective inclination control plates  130  and  140 , then the sole positioning angle may be controlled to be minimum via the respective first inclination control plates  130  and the respective second inclination control plates  140 . 
         [0080]    As shown in  FIG. 12   c,  if the control pins  270  are moved to the control holes  132  and  142  of the respective inclination control plates  130  and  140  to be moved maximally towards the side opposite the crank rod connection side of the respective inclination control plates  130  and  140 , then the side opposite the crank rod connection side of the respective first inclination control plates  130  is lifted maximally and simultaneously the side opposite the crank rod connection side of the respective second inclination control plates  140  is lowered maximally, so that the sole positioning angle may be controlled to be maximum. 
         [0081]    In the meantime, in the pedals of pedal exercise equipment  100  according to the first embodiment to the third embodiment, a plurality of sliding-preventing indent grooves  134  and  144  are formed at the same interval at the upper ends and the lower ends of the first inclination control plates  130  and at the upper ends and the lower ends of the second inclination control plates  140 . 
         [0082]    The pedal of the present invention as described hereinabove may be employed in the bicycle type exercise equipments and the lower body correcting equipments for carrying out leg exercise in addition to the bicycles for traveling roads or the mountain bikes. 
         [0083]    Although the present invention has been described in detail by reference to the forgoing embodiments and accompanying drawings, the present invention is not limited thereto and it is apparent to those skilled in the art that various changes and modifications of the present invention maybe made without departing the spirit and scope of the invention. 
         [0000]    
       
         
               
             
               
               
               
             
           
               
                   
               
               
                 Description of Reference Numerals and Signs 
               
               
                   
               
             
             
               
                   
               
             
          
           
               
                   
                 100: pedal of pedal exercise equipment 
                   
               
               
                   
                 110: connection shaft 
               
               
                   
                 120: pedal body 
               
               
                   
                 121: hinge screw coupling hole 
               
               
                   
                 122: control screw coupling hole 
               
               
                   
                 123: fixing screw coupling hole 
               
               
                   
                 130: first inclination control plate 
               
               
                   
                 131: hinge screw passing hole 
               
               
                   
                 132: control screw passing hole 
               
               
                   
                 133: fixing screw passing hole 
               
               
                   
                 134: sliding-preventing indent groove 
               
               
                   
                 140: second inclination control plate 
               
               
                   
                 141: hinge screw passing hole 
               
               
                   
                 142: control screw passing hole 
               
               
                   
                 143: fixing screw passing hole 
               
               
                   
                 144: sliding-preventing indent groove 
               
               
                   
                 150: fixing screw 
                 160: hinge screw 
               
               
                   
                 170: control screw 
                 180: contact bushing 
               
               
                   
                 190: finishing plate 
               
               
                   
                 191: hinge screw passing hole 
               
               
                   
                 192: control screw passing hole 
               
               
                   
                 193: fixing screw passing hole 
               
               
                   
                 194: outward folding part 
                 270: control pin