Abstract:
Embodiments of the invention relate to a swimming training and swimming stroke bicycle capable of being ridden by applying a swimming stroke, and to a swimming training and swimming stroke bicycle capable of allowing swimming training to be carried out even when a user is not in a swimming pool and allowing a swimming stroke to be practiced and the muscular strength required for swimming to be trained since it is possible to ride the bicycle in various swimming styles such as freestyle, breaststroke, butterfly or backstroke, and capable of allowing a bicycle ride to be enjoyed without boredom since a bicycle can be ridden in new and various styles.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application claims the benefit of and priority to PCT/KR2015/004368, filed on Apr. 30, 2015, entitled (translation), “SWIMMING TRAINING AND SWIMMING STROKE BICYCLE,” which claims the benefit of and priority to Korean Patent Application No. 10-2014-0052643, filed on Apr. 30, 2014, each of which are hereby incorporated by reference in their entirety into this application. 
     
    
     BACKGROUND 
       [0002]    Field of the Invention 
         [0003]    Embodiments of the invention relate to a swimming training and swimming stroke bicycle capable of being ridden by applying a swimming stroke, and to a swimming training and swimming stroke bicycle capable of allowing swimming training to be carried out even when a user is not in a swimming pool and allowing a swimming stroke to be practiced and the muscular strength required for swimming to be trained since it is possible to ride the bicycle in various swimming styles, such as freestyle, breaststroke, butterfly or backstroke, and capable of allowing a bicycle ride to be enjoyed without boredom since a bicycle can be ridden in new and various styles. 
         [0004]    Description of the Related Art 
         [0005]    A bicycle, in general, is a representative tool for an aerobic exercise, and in recent years, people who are using a bicycle for the sake of health and leisure is being significantly increased. 
         [0006]    The bicycle, in general, is configured to run in such a way that a rider sits on a saddle and pedals with feet in a posture where the hands hold a handle. This typical bicycle requires a uniform riding posture, thus causing boring. 
       SUMMARY 
       [0007]    Embodiments of the invention are directed to providing a swimming training and a swimming stroke bicycle wherein different from a typical bicycle, a rider is able to ride a bicycle in such a way to pedal with feet in a posture where the hands hold a handle, the rider is able to ride in various swimming styles, for example, freestyle stroke, breaststroke, butterfly or backstroke, etc., and capable of allowing a bicycle ride to be interested and since the bicycle can be ridden in a new swimming posture, a swimming style practice and its correction are available, and as compared to a typical bicycle, the muscle strength required for a swimming can be trained. 
         [0008]    Embodiments of the invention provide a swimming training and swimming stroke bicycle, which may include, but is not limited to, a base  101 , a driving part  110  which is installed at the base  101  and includes a driving crank rotated by rider&#39;s hands and is configured to drive a front wheel  116  or a rear wheel  125  in cooperation with the driving crank, and a steering part  120  which is equipped with the front wheel  116  or the rear wheel  125  and is hinged at the base  101  and is able to change the driving direction of a bicycle by steering and rotating the steering shaft. 
         [0009]    According to at least one embodiment, the swimming training and swimming stroke bicycle further includes a braking part  130  configured to brake the rotations of the front wheel  116  or the rear wheel  125 . 
         [0010]    According to at least one embodiment, the driving part  110  may include a bracket  111  disposed at both sides of the base  101 , wherein the bracket  111  may include chain rings  113  and  144  which are configured to rotate in cooperation with driving cranks  112  and  141 , and sprockets  115  and  146  which are disposed at the front wheel  116  or the rear wheel  125  and are connected to the chain rings  113  and  144  via a chain  114  and are configured to rotate in cooperation with the chain rings  113  and  144 . 
         [0011]    According to at least one embodiment, the steering part  120  may include a steering footrest  121  which is engaged to the front wheel  116  or the rear wheel  125 , so the steering shafts  118  and  124  can be rotated by stepping on the steering footrests  121 . 
         [0012]    According to at least one embodiment, the steering part  120  is configured in such a way that the bracket  111  wherein the driving crank  112  configured to drive the front wheel  116  or the rear wheel  125  is installed, is engaged to both side ends of the steering frame  117 , and the steering shaft  118  formed in the center of the steering frame  117  is hinged at the base  101 . 
         [0013]    According to at least one embodiment, the swimming training and swimming stroke bicycle further includes an upper body bench  104  disposed at the top of the base  101  to support a rider&#39;s upper body, wherein the height of the upper body bench  104  is adjustable; and a lower body bench  106  configured to support a rider&#39;s lower body, wherein the height of the lower body bench  106  is adjustable. 
         [0014]    According to at least one embodiment, the lower body bench  106  is configured to be gradually more inclined in the direction of the rear side of the base  101 . 
         [0015]    According to at least one embodiment, a support bench  108  may be provided at a rear portion of the lower body bench  106 , wherein the height thereof is adjustable. 
         [0016]    According to at least one embodiment, the braking part  130  includes a brake handle  131  which protrudes upward from a front portion of the base  101  and is equipped with a brake lever, wherein the brake lever is connected via wire with a brake  132  configured to brake in such a way to press and brake the front wheel  116  or the rear wheel  125 , and if the brake lever is pulled, the brake  132  brakes in such a way to press and brake the front wheel  116  or the rear wheel  125 . 
         [0017]    According to at least one embodiment, the braking part  130  is configured in such a way that the brake handle  131  equipped with the brake lever is disposed in the form of one paid, and the brake lever of any one of the brake handles  131  is connected via a wire with the brake  132  which is able to press and brake the front wheel  116 , and the brake lever of the other brake handle  131  is connected wire with the brake  133  which is able to press and brake the rear wheel  125 . 
     
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         [0018]    These and other features, aspects, and advantages of the invention are better understood with regard to the following Detailed Description, appended Claims, and accompanying Figure. It is to be noted, however, that the Figure illustrates only various embodiments of the invention and are therefore not to be considered limiting of the invention&#39;s scope as it may include other effective embodiments as well. 
           [0019]      FIG. 1  is a front perspective view illustrating a swimming training and swimming stroke bicycle according to an embodiment of the invention. 
           [0020]      FIG. 2  is a rear perspective view illustrating a swimming training and swimming stroke bicycle according to an embodiment of the invention. 
           [0021]      FIG. 3  is a side view illustrating a swimming training and swimming stroke bicycle according to an embodiment of the invention. 
           [0022]      FIG. 4  is a perspective view illustrating a main component of a driving part according to an embodiment of the invention. 
           [0023]      FIG. 5  is a perspective view illustrating a main component of a steering part according to an embodiment of the invention. 
           [0024]      FIG. 6  is a perspective view illustrating a main component of a braking part according to an embodiment of the invention. 
           [0025]      FIG. 7  is a disassembled perspective view illustrating a bench part according to an embodiment of the invention. 
           [0026]      FIG. 8  is a view illustrating a state where a bicycle turns right using a steering part according to an embodiment of the invention. 
           [0027]      FIG. 9  is a view illustrating a state where a bicycle turns left using a steering part according to an embodiment of the invention. 
           [0028]      FIG. 10  is a view illustrating a use state where a bicycle is used for a backstroke style according to an embodiment of the invention. 
           [0029]      FIG. 11  is a view illustrating a use state where a bicycle is used for a butterfly stroke style according to an embodiment of the invention. 
           [0030]      FIG. 12  is a perspective view illustrating a swimming training and swimming stroke bicycle according to another embodiment of the invention. 
           [0031]      FIG. 13  is a perspective view illustrating a driving part of a swimming training and swimming stroke bicycle according to another embodiment of the invention. 
       
    
    
       [0032]      
         [0000]    
       
         
               
             
               
               
               
             
           
               
                   
               
               
                 Description of symbols on main components in the drawings 
               
               
                   
               
             
             
               
                   
               
             
          
           
               
                   
                 101: Base  
                 102: Bench fixing part  
               
               
                   
                 103: Bench support part  
                 104: Upper body bench  
               
               
                   
                 105: Bench support part  
                 106: Lower body bench  
               
               
                   
                 107: Bench support part  
                 108: Support bench  
               
               
                   
                 109: Fixing pin  
                 110: Driving part  
               
               
                   
                 111: Bracket  
                 112: Driving crank  
               
               
                   
                 112a: Driving handle  
                 113: Chain ring  
               
               
                   
                 114: Chain  
                 115: Sprocket  
               
               
                   
                 116: Front wheel  
                 117: Steering frame  
               
               
                   
                 118: Steering shaft  
                 120: Steering part  
               
               
                   
                 121: Steering footrest  
                 122: First steering gear  
               
               
                   
                 123: Second steering gear  
                 124: Steering shaft  
               
               
                   
                 125: Rear wheel  
                 130: Braking part  
               
               
                   
                 131: Brake handle  
                 132: Brake  
               
               
                   
                 133: Brake  
                 141: Driving crank  
               
               
                   
                 141a: Driving handle  
                 142: Gear  
               
               
                   
                 143: Bevel gear  
                 144: Chain ring  
               
               
                   
                 145: Chain  
                 146: Sprocket 
               
               
                   
                   
               
             
          
         
       
     
       DETAILED DESCRIPTION 
       [0033]    Advantages and features of embodiments of the invention and methods of accomplishing the same will be apparent by referring to embodiments described below in detail in connection with the accompanying drawings. However, embodiments of the invention is not limited to the embodiments disclosed below and may be implemented in various different forms. The embodiments are provided only for completing the disclosure of the invention and for fully representing the scope of the embodiments of the invention to those skilled in the art. 
         [0034]    For simplicity and clarity of illustration, the drawing figure illustrates the general manner of construction, and descriptions and details of well-known features and techniques may be omitted to avoid unnecessarily obscuring the discussion of the described embodiments of the invention. Additionally, elements in the drawing figure is not necessarily drawn to scale. For example, the dimensions of some of the elements in the figure may be exaggerated relative to other elements to help improve understanding of embodiments of the invention. Like reference numerals refer to like elements throughout the specification. 
         [0035]    Embodiments of the invention will be described below, but the invention is not limited to the embodiments described below, and it should be understood that the scope of the invention includes various embodiments in which the embodiments described below are modified, improved, or changed as appropriate, based on the ordinary knowledge of those skilled in the art, within the scope not deviating from the spirit of the embodiments of the invention. 
         [0036]      FIG. 1  is a front perspective view illustrating a swimming training and swimming stroke bicycle according to an embodiment of the invention.  FIG. 2  is a rear perspective view illustrating a swimming training and swimming stroke bicycle according to an embodiment of the invention.  FIG. 3  is a side view illustrating a swimming training and swimming stroke bicycle according to an embodiment of the invention.  FIG. 4  is a perspective view illustrating a main component of a driving part.  FIG. 5  is a perspective view illustrating a main component of a steering part.  FIG. 6  is a perspective view illustrating a main component of a braking part.  FIG. 7  is a disassembled perspective view illustrating a bench part according to an embodiment of the invention.  FIG. 8  is a view illustrating a state where a bicycle turns right using a steering part according to an embodiment of the invention.  FIG. 9  is a view illustrating a state where a bicycle turns left using a steering part according to an embodiment of the invention.  FIG. 10  is a view illustrating a use state where a bicycle is used for a backstroke posture.  FIG. 11  is a view illustrating a use state where a bicycle is used for a butterfly stroke posture.  FIG. 12  is a perspective view illustrating a swimming training and swimming stroke bicycle according to another embodiment of the invention.  FIG. 13  is a perspective view illustrating a driving part of a swimming training and swimming stroke bicycle according to another embodiment of the invention.  FIG. 14  is a perspective view illustrating a swimming training and swimming stroke bicycle according to further another embodiment of the invention.  FIG. 15  is a view illustrating a use state of a swimming training and swimming stroke bicycle in  FIG. 14 .  FIG. 16  is a perspective view illustrating a swimming training and swimming stroke bicycle according to still further another embodiment of the invention. 
         [0037]    Referring to  FIGS. 1 to 3 , the swimming training and swimming stroke bicycle according to an embodiment of the invention may include a bench which is disposed at the top of a base  101  which is referred to a frame, wherein a rider is able to lie face down or lie on the bench, a driving part which is provided at a front portion of the base  101  and is able to provide a driving force, and a steering part which is disposed at a rear portion of the base  101  and is able to steer a bicycle. 
         [0038]    According to at least one embodiment, the driving part  110  disposed at a front portion of the base  101  is able to generate a driving force to a bicycle, thus rotating a front wheel  116  disposed at a front portion of the base  101 , by which the bicycle can be driven. 
         [0039]    Referring to  FIGS. 1 to 4 , the driving part  110  may include a driving crank  112  disposed at an inner side of the top of a bracket  111  which protrudes upward in the vertical direction at both front sides of the base  101 , and the driving crank  112  allows to rotate a driving handle  112   a  with hands, and the driving crank  112  is connected coaxial with a chain ring  113  disposed at the outer side of the top of the bracket  111 . 
         [0040]    According to at least one embodiment, the driving handle  112   a  may be configured to be freely rotated with respect to the driving crank  112 , so the user can comfortably rotate the driving crank  112  when the user rotates the driving crank  112  while holding the driving handle  112   a.    
         [0041]    According to at least one embodiment, the chain ring  113  may be connected to a sprocket  115  formed integral with the front wheel  116  below the bracket  111 , and connected a chain  114 . 
         [0042]    As mentioned above, constituted driving part  110  is disposed at both front sides of the base  101 . When the user sits on the bench as if he lies face down or lies thereon and holds the driving handle  112   a  of the driving part  110  with hands and rotates the driving crank  112 , the chain ring  113  may be rotated in cooperation with the driving crank  112  due to the rotation of the chain ring  113 , and as the chain ring  113  rotates, the sprocket  115  connected with the chain  114  can rotate, and the front wheel  116  rotates, by which the bicycle can be driven. 
         [0043]    A free wheel or a free hub, in general, is built in the sprocket  115 , by which the driving direction of the gear may be set only in one direction. It can be rotated only when the front wheel  116  is driven forward. 
         [0044]    According to at least one embodiment, the sprocket  115  may be configured in a multi-stage using the sprockets having different diameters. A typical transmission allowing the chain  114  to be selectively engaged with any of the multi-stage sprockets  115 , may be adapted, thus variously changing the speed. If the left and right driving parts  110  are configured to drive the left and right wheels  116 , the rotation speeds of the left and right wheels may be changed by the force and speed that the hands and arms rotate the left and right cranks  112 , by which the steering effect of the bicycle can be obtained. 
         [0045]    A steering part  120  may be provided at a rear portion of the base  101  of the bicycle so as to adjust the steering direction of the bicycle. 
         [0046]    Referring to  FIGS. 1 to 3 and 5 , the steering part may include a first steering gear  122  which is inserted in a vertical shaft (not illustrated) disposed at a rear portion of the base  101 , wherein the first steering gear  122  may be engaged with a second steering gear  123  disposed integral with the steering shaft  124  which supports the rear wheel  125 . 
         [0047]    According to at least one embodiment, the shaft of the first steering gear  122  may be formed integral with the steering footrest  121 . 
         [0048]    If the rider sits on the bench and contact his feet close to the steering footrests  121  and rotate the steering footrests  121  using feet, the steering footrests  121  rotate the first steering gear  122  and the second steering gear  123 , thus rotating the steering shaft  124 . The rear wheel  125  engaged integral with the steering shaft  124  can rotate, thus adjusting the driving direction of the bicycle. 
         [0049]    According to an embodiment of the invention, the steering part  120  is configured for the rider to step on the steering footrests  121 , thus steering the rear wheel  125 . The first steering gear  122  and the second steering gear  123  are configured to be tooth-engaged with each other so that the bicycle can rotate in the direction where the user steps on the steering footrests  121 . 
         [0050]    Alternatively, the steering footrests  121  may be formed integral with the second steering gear  123 , so the rear wheel  125  can be steered in the opposite direction that the rider steps on the steering footrests  121 . 
         [0051]    According to at least one embodiment, the bicycle of the invention can be driven through the driving part  110 , and the steering direction of the bicycle can be changed through the steering part  120 , and the braking part  130  is able to brake the bicycle which is being driven. 
         [0052]    Referring to  FIGS. 1 to 3 and 6 , the braking part  130  may include a pair of left and right brake handles  131  which protrude upward at a height similar with the height where the rider lies face down, at a front portion of the base  101 , a brake lever (not illustrated) formed integral with the brake handle  131 , and a brake  132  which is able to brake the rotation of the front wheel  116  by pressing and braking the front wheel  116  as in  FIG. 6 . 
         [0053]    Referring to  FIG. 5 , a brake  133  may be disposed at the rear wheel  125  so as to brake the rotation of the rear wheel  125  by pressing and braking the rear wheel  125 . 
         [0054]    A pair of the brake handles  131  and the brake lever are connected with the brake  132  of the front wheel  116  and the brake  133  of the rear wheel  125  via a wire. If the rider pulls the lever of the brake handle  131 , the brake  132  of the front wheel  116  or the brake  133  of the rear wheel  125  will become activated and brake the front wheel  116  or the rear wheel  125 , thus braking the bicycle. 
         [0055]    Referring to  FIGS. 1 to 3 , the braking part  130  of the embodiments of the invention is configured to brake the bicycle through the brake handle  131  and the lever disposed at a front portion of the base  101 . Alternatively, the braking part may be configured in such a way to install the brake lever at the driving handles  112   a  held by the rider. 
         [0056]    Referring to  FIGS. 3 and 7 , the bench on which the rider lies face down or lies, may include an upper body bench  104  disposed at an intermediate portion of the base  101 , a lower body bench  106  and a support bench  108 . 
         [0057]    According to at least one embodiment, the upper body bench  104 , the lower body bench  106  and the support bench  108  are able to support each portion of the rider&#39;s body so as to allow the rider to sit on the bicycle and ride the bicycle in the postures, such as freestyle stroke, breaststroke, backstroke, and butterfly stroke etc. 
         [0058]    According to at least one embodiment, the bench support part  103  disposed below the upper body bench  104 , the bench support part  105  disposed below the lower body bench  106  and the bench support part  107  disposed below the support bench  108  may be fixed using a fixing pin  109  at the bench fixing part  102  disposed on the top of the base  101 . Holes may be perforated at regular intervals at the bench support parts  103 ,  105  and  107 . The fixing pin  109  can be selectively and fixedly inserted into the holes, so the heights of the upper body bench  104 , the lower body bench  106  and the support bench  108  can be adjusted to the rider&#39;s body style. 
         [0059]    According to at least one embodiment, the upper body bench  104  is able to support the rider&#39;s upper body, and the lower body bench  106  is able to support the rider&#39;s lower legs (thighs, etc.), and the support bench  108  is able to support the rider&#39;s lower legs (knees and ankles) which are assigned to adjust the steering part  120 . 
         [0060]    Referring to  FIGS. 1 to 3 , the lower body bench  106  may be configured in such a way that the angle thereof can be adjusted for the lower body bench  106  to be gradually more inclined downward in the direction of the rear side of the base  101 , whereby the rider&#39;s lower body can be supported to match with the swimming posture wherein the rider may ride face down or lies on the bench. 
         [0061]    In the swimming training and swimming stroke bicycle according to at least one embodiment of the invention, the rider may lie face down on the bench or lies on the bench, and the rider holds the driving handles  112   a  with his hands, and then rotates the driving crank  112 , so the front wheel  116  rotates, and the bicycle can be driven. 
         [0062]    If the rider presses the steering footrests  121  in the direction that the rider wants to turn while driving the bicycle, as illustrated in  FIGS. 8 and 9 , the first steering gear  122  formed integral with the steering footrest  121  rotates, and the second steering gear  123  tooth-engaged with the first steering gear  122  rotates, and the rear wheel  125  driven in cooperation with the second steering gear  123  rotates, thus changing the driving direction. 
         [0063]    As mentioned above, embodiments of the invention may allow a rider to ride a bicycle in various styles. Referring to  FIG. 10 , the rider may lie face up on the bench like a backstroke posture while looking up the sky and hold the driving handles  112   a  and rotate the driving cranks  112 , so the rider can ride the bicycle while adjusting the driving direction by steering the steering footrests  121  with feet. 
         [0064]    As illustrated in  FIG. 11 , the rider may lie face down on the bench in the direction of the ground and hold the driving handles  112   a  and rotate the driving cranks  112 , so the rider can ride the bicycle while adjusting the driving direction by steering the steering footsteps  121  with feet. 
         [0065]    In the posture illustrated in  FIG. 11 , the rider may take a posture of a freestyle stroke or a butterfly stroke in swimming and may enjoy both the swimming training and the bicycle riding. 
         [0066]      FIG. 12  is a perspective view illustrating a swimming training and swimming stroke bicycle according to another embodiment of the invention. 
         [0067]    This embodiment has the same configurations as the steering part  120 , the braking part  130  and the bench of an embodiment of the invention illustrated in  FIGS. 1 to 3  except for the different configuration of the driving part  110 . 
         [0068]    In the above another embodiment of the invention, the driving part  110  is disposed separate for the sake of a breaststroke training. 
         [0069]    Referring to  FIGS. 12 and 13 , the driving part of the swimming training and swimming stroke bicycle according to another embodiment of the invention may include a driving crank  141  which protrudes upward from the base to match with the position of a rider&#39;s arm, wherein the driving crank  141  may be configured to be rotated in such a way to rotate the driving handle  141   a  with hands. A gear  142  is provided, which rotates in cooperation with the driving crank  141 . The gear  142  may be tooth-engaged with a bevel gear  143  disposed below the same. The bevel gear  143  may be equipped with a chain ring  144  at the outer side of the bracket  111 . If the rider rotates the driving crank  141  in the horizontal direction, the chain ring  144  disposed at the outer side of the bracket  111  will rotate. 
         [0070]    According to at least one embodiment, the chain ring  144  is able to drive the sprocket  146  formed integral with the front wheel  116  and rotate the front wheel  116 , by which the bicycle can be driven. 
         [0071]    In the above another embodiment of the invention, it is configured so that the driving crank  141  can be rotated in the horizontal direction, which may allow the rider to ride a bicycle while training a breaststroke style in various swimming styles. 
         [0072]    In the swimming training and swimming stroke bicycle according to an embodiment the invention, the front wheel is driven by the driving part  110 , and the steering part  120  is disposed at the rear wheel  125 . As illustrated in  FIG. 14  according to another embodiment of the invention, both the driving part  110  and the steering part  120 , alternatively, may be disposed at the front wheel  116 . 
         [0073]    As illustrated in  FIG. 14 , the steering frame  117  may be engaged to a front portion of the base  101  via the steering shaft  118 , so the steering frame  117  can rotate about the steering shaft  118 . 
         [0074]    According to at least one embodiment, the front wheel  116  may be engaged to both sides of the steering frame  117 , and the front wheel  116  can be driven by the driving part  110 . 
         [0075]    According to at least one embodiment, the configuration of the driving part  110  adapted to drive the front wheel  116  is same as the previously described an embodiment of the invention. 
         [0076]    Referring to  FIG. 15 , in the swimming training and swimming stroke bicycle according to at least one embodiment of the invention, if a rider lies on the upper body bench  104  and the lower body bench  106  and holds the driving handles  112   a  with hands, and rotates the driving crank  112 , the chain ring  113  connected with the driving crank  112  will rotate, and the sprocket  115  will be rotated through the chain  114 , so the sprocket  115  will drive the front wheel  116 . 
         [0077]    More specifically, the rider may drive the front wheel  116  by rotating the driving crank  112  using the driving handles  112   a , and may rotate the steering frame  117  about the steering shaft  118 , thus changing the driving direction of the bicycle. 
         [0078]    Referring to  FIG. 16 , the steering part  120  may be provided at the front wheel  116  of the bicycle, and the driving part  110  may be provided at the rear wheel  125 . 
         [0079]    As illustrated in  FIG. 16 , the sprocket  115  of the rear wheel  125  and the chain ring  113  of the bracket  111  are connected the chain  114  and are driven, and the chain ring  113  is connected with the driving crank  112 . If the rider holds the driving handles  112   a  of the driving crank  112  and rotates it, the driving part  110  will drive the rear wheel  125 . 
         [0080]    Referring to  FIG. 16 , the steering shaft  124  may be hinged at a front portion of the base  101 , and the front wheel  116  may be provided at the steering shaft  124 , and the steering footrest  121  may be provided at the top of the steering shaft  124 , wherein the rider is able to drive the rear wheel with hands, and adjust the steering footrests  121  with feet, thus changing the driving direction of the bicycle. 
         [0081]    Different from a typical bicycle wherein a rider rides a bicycle in such a way to pedal while holding the handle with both hands, the swimming training and swimming stroke bicycle according to at least one embodiment of the invention is able to provide an effective advantage in the way that the rider can ride the bicycle in various swimming postures, for example, a freestyle stroke, a breaststroke, a butterfly stroke or backstroke, etc. Since the rider can use the bicycle in various new swimming postures, thus providing a swimming posture practice and building up the muscles necessary for swimming. Embodiments of the invention provide a new experience and fun wherein a rider can feel as if he swims on the ground which has no water. 
         [0082]    So far, the swimming training and swimming stroke bicycle according to at least one embodiment of the invention has been described. 
         [0083]    It should be understood that the technical configuration of the various embodiments of the invention could be implemented in another specific form by a person having ordinary skill in the art without departing from the technical concepts and necessary features. 
         [0084]    For example, the lengths and shapes of the driving crank and the driving handle of the bicycle, the distance between the crank shaft and the bench and the distance and angle between the bench and the steering footrests may be changed in response to the body style of a rider who uses the swimming training and swimming stroke bicycle of the embodiments of the invention, and alternatively, the lengths, dimensions, angles and designs of the components which form the swimming training and swimming stoke bicycle of the embodiments of the invention may be changed. 
         [0085]    Embodiments of the invention provide non-obvious advantages over the conventional art. For example, different from a typical bicycle, the swimming training and swimming stroke bicycle according to at least one embodiment has an effective advantage wherein a rider is able to ride a bicycle in such a way to pedal with feet in a style where the hands hold a handle, the rider is able to ride in various swimming styles such as freestyle stroke, breaststroke, a butterfly or backstroke, etc., and since the bicycle can be ridden in a new and various swimming style, a swimming style practice and its correction are available, and as compared to a typical bicycle, the muscle strength required for a swimming can be trained. Embodiments of the invention provide a new experience and fun wherein a rider can feel as if he swims on the ground where is no water. 
         [0086]    For this reason, it should be understood that the above-described technical embodiments are provided for illustrative purposes in all aspects, not limiting them, and the right scope of the embodiments of the invention should be defined by the claims rather than the descriptions, and all the changes or modified forms which may be derived from the meaning and scope of the claims and their equivalents should be interpreted as being included in the scope of the embodiments of the invention.