Patent Publication Number: US-2007099767-A1

Title: Body training machine

Description:
BACKGROUND OF THE INVENTION  
      1. Field of the Invention  
      The present invention relates to a body training machine which can execute a pedaling exercise amusingly while being applied a comfortable stimulation on the basis of a vertical motion, and can obtain an excellent training effect.  
      2. Description of the Related Art  
      As health consciousness grows, a lot of body training machines which can be used for training with ease indoors have proposed to increase levels of physical activity. Among them, there has been generalized a bicycle type body training machine in which an installation base is provided with a saddle portion, a pedal crank portion, a handle portion and a load apparatus capable of adjusting aw eight of a pedal, and training is executed on the basis of a pedaling exercise.  
      If this kind of body training machine is used, it is possible to execute a cycling exercise in correspondence to a physical strength of each of individuals with ease indoors. However, this exercise corresponds to training which repeats a simple motion of working the pedals while keeping the same exercise posture. Accordingly, a portion to be trained is limited and an effect of the training has a limit. Further, it is impossible to obtain such an exhilarating feeling as a feeling obtained at a time of riding a bicycle in the open air, and there is a problem that many people fail to achieve long-term goals.  
      Accordingly, as shown in  FIG. 15 , a U-shaped frame d supporting a handle a and a saddle b is axially attached to a pivot shaft e, and a wheel h is provided so as to rotate working with a motion of a pedal crank f via a belt g. Further, a crank lever mechanism j is structured by bridging a link i between the wheel h and the frame d. Thus, there has been proposed a training machine in which the handle a and the saddle b are swung backward and forward working with the rotation of the pedal crank f (refer, for example, to Japanese Unexamined Patent Publication No. 2002-210037).  
      In the training machine, since the body swings backward and forward together with the pedaling motion, it is possible to feel a horse riding feeling, and it is possible to train while enjoying a change thereof by a body. However, since the motion of swinging an upper half of the body backward and forward comes up with an exercise of rotating legs, an unreasonable load tends to be applied to a low back, a spine or the like. At the same time, an exercise rhythm of the legs comes down, and there is a case that a training effect is lowered.  
      Further, as shown in  FIG. 16 , there has been proposed a health enhancement device in which a roller n is provided so as to be brought into slidable contact with an upper surface of an eccentric cam m attached to a crank shaft k, and a saddle t is moved up and down working with a vertical motion of the roller n (refer, for example, to Japanese Unexamined Utility Model Publication No. 7-43344).  
      In the health enhancement device mentioned above, since the saddle t is continuously moved up and down working with the rotation of the pedal, a change of vertically moving the body is generated, and a user can feel a certain amount of stimulation. However, in order to obtain a training effect, it is necessary to continue the exercise for a definite period of time or more. Accordingly, the body immediately gets the feel of the change that the saddle t is simply moved up and down, and there is a problem that the stimulation fades. Further, since an entire body weight is applied as a repeated bending load to the crank shaft k on the basis of the vertical motion of the saddle t, there is a problem that a bearing mechanism and an entire of the device are enlarged in size, thereby lowering a handling property.  
     SUMMARY OF THE INVENTION  
      An object of the present invention is to provide a body training machine which is provided with a cam wheel with which a handle shaft is brought into slidable contact in a lower end portion, and an elevating means having a swing arm pivoted to a base frame portion so as to swing within a vertical surface as a basic structure, can execute training amusingly while feeling a suitable stimulation in a simple pedaling exercise as well as obtaining a great training effect, and can be structured compact.  
      In order to achieve the object mentioned above, in accordance with a first aspect of the present invention, there is provided a body training machine comprising:  
      a vertically supportable base frame portion;  
      a handle portion provided with a handle in a handle shaft capable of moving up and down in a front portion of the base frame portion;  
      a saddle portion provided with a saddle in an upper end of a saddle shaft supported so as to be movable up and down in a rear portion of the base frame portion;  
      a rotating means provided with crank arms having pedals driven by feet of a user sitting on the saddle in leading ends in both sides of the base frame portion, in a pivot shaft rotatably supported to the base frame portion;  
      an elevating means for moving up and down the handle or the saddle by driving the rotating means;  
      the elevating means being constituted by a cam wheel attached to the pivot shaft and rotating together with the pivot shaft, and a swing arm having an intermediate portion pivoted to the base frame portion and capable of swinging within a vertical surface;  
      a lower end portion of the handle shaft being brought into slidable contact with an upward surface of the cam wheel; and  
      the swing arm being structured such that a front portion is brought into slidable contact with a downward surface of the cam wheel and a rear portion is brought into contact with a lower portion of the saddle shaft, thereby pushing up the saddle shaft in conjunction with an upward swing motion of the rear portion of the swing arm.  
      In accordance with a second aspect of the present invention, the base frame portion has a handle support tube outside inserted to the handle shaft pushed up by the cam wheel and moved up and down so as to support the handle shaft, and a saddle support tube outside inserted to the saddle shaft pushed up by the swing arm and moved up and down so as to support the saddle shaft, and provided with a vertical slit extending in an axial direction of the saddle shaft, and the saddle shaft has a projection piece protruding to an outer side of the saddle support tube from the vertical slit and engaging with the swing arm.  
      In accordance with a third aspect of the present invention, the handle portion and the saddle portion are structured such that canceling means are individually formed in such a manner as to cancel an association with the elevating means and be capable of stopping a vertical motion of the handle and the saddle, and a pedaling exercise is executed by selecting an associated mode in which both of the handle and the saddle are moved up and down, a saddle swing mode in which only the saddle is moved up and down, a handle swing mode in which only the handle is moved up and down, and a stationary mode in which both of the handle and the saddle are stationary.  
      In accordance with a fourth aspect of the present invention, the canceling means is constituted by a handle shaft holding means for holding the handle shaft within the handle support tube at a height at which the handle shaft is not brought into contact with the cam wheel.  
      In accordance with a fifth aspect of the present invention, the canceling means is constituted by a saddle shaft holding means for holding the saddle shaft within the saddle support tube at a height at which the swing arm is not brought into contact with the projection piece.  
      In accordance with a sixth aspect of the present invention, the canceling means is formed by using a support pin capable of maintaining the handle shaft or the saddle shaft at a fixed height, by engaging with the handle support tube or the saddle support tube, and engaging with the handle shaft or the saddle shaft inserted thereto.  
      In accordance with a seventh aspect of the present invention, a lower end portion of the handle shaft is provided with a roller brought into slidable contact with the cam wheel, and has a pressing means having a spring pressing the roller toward the cam wheel.  
      In accordance with an eighth aspect of the present invention, the swing arm has a pair of rollers arranged back and forth toward an upper direction in a front portion thereof, and is brought into slidable contact with the cam wheel via a pair of rollers.  
      In accordance with a ninth aspect of the present invention, the cam wheel is provided with an entire periphery cam surface having a far cam surface in which a distance in a radial direction from a rotation center of the pivot shaft is the longest, and an opposite side cam surface which is positioned in an approximately opposite side to the far cam surface and in which the radial distance is shorter than the far cam surface.  
      In accordance with a tenth aspect of the present invention, the cam wheel is structured such that the opposite side cam surface is constituted by a near cam surface in which the radial distance is the shortest in the entire periphery cam surface.  
      In accordance with an eleventh aspect of the present invention, the cam wheel is structured such that the far cam surface and the near cam surface form a circular arc surface.  
      In accordance with a twelfth aspect of the present invention, the cam wheel is structured such that the entire periphery cam surface is formed in a circular shape and is constituted by a circular eccentric cam having the far cam surface which is attached to the pivot shaft eccentrically from a center of the circle and in which a distance from the rotation center of the pivot shaft corresponds to a length obtained by adding an amount of eccentricity to a radial distance, and the near cam surface which is positioned in an opposite side to the far cam surface and in which a distance from the rotation center of the pivot shaft corresponds to a length obtained by subtracting the distance of eccentricity from the radial distance.  
      In accordance with a thirteenth aspect of the present invention, the cam wheel is provided with an entire periphery cam surface having a far cam surface which is provided in both sides of the pivot shaft while having the center of the pivot shaft therebetween, and in which a distance in a radial direction from the rotation center of the pivot shaft is the longest, and an inner cam surface which is provided in both sides of the center of the pivot shaft while having the center of the pivot shaft therebetween, and in which the radial distance is shorter than the far cam surface.  
      In accordance with a fourteenth aspect of the present invention, the cam wheel is structured such that the inner cam surface is constituted by a near cam surface in which the radial distance is the shortest in the entire periphery cam surface.  
      In accordance with a fifteenth aspect of the present invention, the cam wheel is structured such that the far cam surface and the near cam surface form a circular arc curved surface.  
      In accordance with a sixteenth aspect of the present invention, the cam wheel is structured such that the both side far cam surfaces are positioned symmetrically while having the center of the pivot shaft therebetween, the both side near cam surfaces are positioned symmetrically while having the center of the pivot shaft therebetween, and a line connecting the far cam surfaces through the center of the pivot shaft forms a right angle with a line connecting the both side near cam surfaces through the center of the pivot shaft, in the entire periphery cam surface.  
      In accordance with a seventeenth aspect of the present invention, the cam wheel is constituted by an oval cam wheel which is symmetrical with long and short axes.  
      In the invention in accordance with the first aspect, since the handle or the saddle is moved up and down by being driven by the motion that the user sitting on the saddle works the pedals so as to train, the posture of the user is repeatedly changed at a fixed cycle. As a result, since the posture of the user is changed even in the indoor training, the load is applied to the different muscles and a subtly changed load is repeatedly applied to the same muscle. Accordingly, it is possible to obtain a well-balanced training effect. At the same time, a light rhythm feeling is generated in the pedaling exercise, an uplifting feeling is applied to the indoor training which tends to be monotonous, and it is possible to enjoy a long-hour exercise without being tired. Further, since the handle or the saddle is moved up and down by using the driving force generated by working the pedals, the rotating load of the pedals is increased at a time of moving upward so as to increase the amount of exercise, whereby the training effect is improved. Further, since the rotating load is repeatedly increased and decreased periodically going with the upward and downward movement of the handle or the saddle, the load increasing and decreasing in a wavy manner is applied to the muscle so as to effectively stimulate the muscle, so that an effect of increasing a muscle force is improved.  
      As in the invention in accordance with the second aspect, in the case that the handle support tube and the saddle support tube outside insert the vertically moving handle shaft and saddle shaft so as to support, both the shafts can be smoothly moved up and down. Accordingly, the pedal can be smoothly rotated, and it is possible to prevent an overload from being applied to a knee, an ankle or the like.  
      As in the invention in accordance with the third aspect, in the case that the canceling means capable of stopping the upward and downward motion of the handle and the saddle are individually formed, it is possible to execute the pedaling exercise by selecting the associated mode in which both of the handle and the saddle are moved up and down, the saddle swing mode in which only the saddle is moved up and down, the handle swing mode in which only the handle is moved up and down, and the stationary mode in which both of the handle and the saddle are stationary, in correspondence to the combination thereof. Accordingly, it is possible to apply various changes to the exercise, it is possible to amusingly execute the training for a change of air by properly using them, and it is possible to freely select the mode in correspondence to a personal preference. Further, it is possible to select an amount of exercise in correspondence to a physical strength, a degree of fatigue or the like of the user, by increasing and decreasing the exercise load on the basis of the switching.  
      As in the invention in accordance with the fourth aspect, in the case that the canceling means is constituted by the handle shaft holding means for holding the handle shaft at the height at which the handle shaft is not brought into contact with the cam wheel, it is possible to securely cancel the upward and downward motion of the handle by the simple structure.  
      As in the invention in accordance with the fifth aspect, in the case that the canceling means is constituted by the saddle shaft holding means for holding the saddle shaft at the height at which the projection piece is not brought into contact with the swing arm, it is possible to cancel the upward and downward motion of the saddle by the simple structure and securely.  
      As in the invention in accordance with the sixth aspect, in the case that the canceling means is structured by using the support pin continuously passing through the handle support tube and the handle shaft inserted thereto, or the saddle support tube and the saddle shaft inserted thereto, it is possible to securely cancel the upward and downward motion of the handle or the saddle on the basis of the simple operation obtained only by inserting the support pin.  
      As in the invention in accordance with the seventh aspect, in the case that the lower end portion of the handle shaft is provided with the roller brought into slidable contact with the cam wheel, and is provided with the pressing means pressing the roller toward the cam wheel, the handle shaft is not flipped up, and the roller can roll along the surface of the cam wheel, so that the handle shaft can be smoothly moved up and down without rattling.  
      As in the invention in accordance with the eighth aspect, in the case that the front portion of the swing arm is provided with a pair of rollers arranged back and forth toward the upper direction and brought into slidable contact with the cam wheel, the pair of rollers smoothly rolls along the surface of the cam wheel. Accordingly, the saddle,can be smoothly moved up and down.  
      As in the invention in accordance with the ninth aspect, in the case that the cam wheel of the elevating means is provided with the entire periphery cam surface having the far cam surface in which the distance in the radial direction is the longest, and the opposite side cam surface in which the radial distance is shorter than the far cam surface, the lower end portion of the handle shaft moves up and down while being brought into slidable contact with the upward surface of the cam wheel, and the saddle shaft is pushed up together with the upward swing motion of the rear portion of the swing arm in which the intermediate portion is pivoted to the base frame portion, and the front portion is brought into slidable contact with the downward surface of the cam wheel. As a result, in the case of rotating the pedals, the handle shaft and the saddle shaft are moved up and down at the alternately inverted timings. Since the vertical motion of the sitting saddle and the vertical motion of the handle are repeated at the inverted phases, it is necessary for the user to execute a balance operation at a timing which is not experienced in a daily life by using an entire body for maintaining the posture, so that a high exercise effect can be obtained. Further, since a fresh exercise feeling which can not be experienced in normal can be obtained, it is possible to train while enjoying.  
      As in the invention in accordance with the tenth aspect, in the case that the opposite side cam surface is constituted by the near cam surface in which the radial distance is the shortest, it is possible to form the elevating stroke of the handle or the saddle large. Accordingly, it is possible to achieve the exercise effect to the maximum.  
      As in the invention in accordance with the eleventh aspect, in the case that the far cam surface and the opposite side cam surface form the circular arc surface, the lower end portion of the saddle shaft brought into slidable contact with the entire periphery cam surface or the front portion of the swing arm can smoothly move. Accordingly, it is possible to exercise without generating any overburden in the pedal exercise.  
      As in the invention in accordance with the twelfth aspect, in the case that the cam wheel is structured by using the circular eccentric cam having the far cam surface having the length obtained by adding the amount of eccentricity to the radial distance, and the near cam surface having the length obtained by subtracting the distance of eccentricity from the radial distance, the structure is simple. Accordingly, the handle or the saddle smoothly moves up and down, and the maintenance can be easily executed as well as the cost can be suppressed.  
      As in the invention in accordance with the thirteenth aspect, in the case that the cam wheel is provided with the entire periphery cam surface having the far cam surface which is provided in both sides of the pivot shaft while having the center of the pivot shaft therebetween, and in which the distance in the radial direction from the rotation center of the pivot shaft is the longest, and the inner cam surface in which the radial distance is shorter than the far cam surface, an elevating motion in which the vertical motions are synchronized is repeated by the handle shaft in which the lower end portion is brought into slidable contact with the upward surface of the cam wheel, and the saddle shaft in which the front portion is brought into slidable contact with the downward surface of the cam shaft and which is pushed down together with the upward swing motion of the swing arm rear portion. As mentioned above, since the timings of the vertical motion of the sitting saddle and the vertical motion of the handle are aligned, it is possible to train amusingly in correspondence to the elevating tempo while getting into the rhythm by the entire body. Further, since the motions of the saddle and the handle are the same, an elderly person having a tendency that the exercise capacity such as physical reflexes or the like is lowered can use with a safe conscience.  
      As in the invention in accordance with the fourteenth aspect, in the case that the inner cam surface is constituted by the near cam surface in which the radial distance is the shortest, it is possible to form the elevating stroke of the handle or the saddle large. Accordingly, it is possible to achieve the exercise effect to the maximum.  
      As in the invention in accordance with the fifteenth aspect, in that case that the far cam surface and the near cam surface form the circular arc surface, the lower end portion of the saddle shaft or the front portion of the swing arm can smoothly move. Accordingly, it is possible to amusingly train on the basis of the light pedal exercise.  
      As in the invention in accordance with the sixteenth aspect, in the case that the line connecting the far cam surfaces through the center of the pivot shaft forms the right angle with the line connecting the both side near cam surfaces through the center of the pivot shaft, in the entire periphery cam surface, the saddle and the handle move up and down at the fixed cycle together with the pedaling exercise. Accordingly, the vertical motion forms a comfortable stimulation and it is possible to comfortably train.  
      As in the invention in accordance with the seventeenth aspect, in the case that the cam wheel is constituted by the oval cam wheel which is symmetrical with the long and short axes, the handle shaft and the saddle shaft brought into slidable contact with the entire periphery cam surface repeat the smooth and regular elevating motion. Accordingly, it is possible to obtain a comfortable stimulation. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       FIG. 1  is a perspective view exemplifying an embodiment in accordance with the present invention;  
       FIG. 2  is a front elevational view of  FIG. 1 ;  
       FIG. 3  is a cross sectional view along a line A-A in  FIG. 2 ;  
       FIG. 4  is a side elevational view of  FIG. 3 ;  
       FIG. 5  is a front elevational view in which a main portion is enlarged;  
       FIG. 6  is an enlarged perspective view of a main portion;  
       FIG. 7  is a front elevational view exemplifying an operating state;  
       FIG. 8  is a front elevational view exemplifying the other operating state;  
       FIGS. 9A  to  9 D show an operation of an elevating means, in which  FIGS. 9A  to  9 D are operation explanatory views for explaining states in which a cam wheel is rotated in increments of 90 degree;  
       FIG. 10  is a front elevational view of a main portion exemplifying a state in which a canceling means is used;  
       FIG. 11  is a front elevational view exemplifying a used state in which a handle shaft is bent;  
       FIG. 12  is a front elevational view exemplifying the other embodiment;  
       FIG. 13  is a front elevational view of a main portion exemplifying further the other embodiment;  
       FIG. 14  is a front elevational view of a main portion exemplifying different operating states of  FIG. 13 ;  
       FIG. 15  is a front elevational view of a prior art; and  
       FIG. 16  is a schematic view of the other prior art. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
      A description will be given of a mode for carrying out the present invention together with an illustrated embodiment. As shown in  FIGS. 1 and 2 , a body training machine  1  is provided with a base frame portion  2 , a handle portion  5  in a front portion of the base frame portion  2 , a saddle portion  8  in a rear portion, a rotating means  12  executing a pedaling exercise, and an elevating means  13  moving up and down the handle  4  or the saddle  7 . Further, the present embodiment has a canceling means  20  which can cancel an operation of the elevating means  13  so as to stop the vertical motion of the handle or the saddle.  
      The base frame portion  2  structures a basement of an equipment, and is structured such as to include a pedestal portion  2 A installed in a mounting surface, and an uprising portion  2 B uprising from the pedestal portion  2 A. In the present embodiment, the pedestal portion  2 A is constituted, as shown in  FIGS. 2 and 3 , by a main shaft portion  31  extending back and forth in the center, a front arm portion  32  extending sideward from front and rear end portions of the main shaft portion  31 , and a rear arm portion  33 , and is formed in an approximately I shape. Further, the main shaft portion  31  is structured by using a flat steel pipe, and the front arm portion  32  and the rear arm portion  33  are structured by using a round steel pipe and are welded to the front and rear end portions of the main shaft portion  31 . Further, a cap  34  for preventing a slip is put on end portions of the front arm portion  32  and the rear arm portion  33 . In this case, in the present specification, the front side is the side to which a user faces and in which the handle  4  is arranged and a side.  
      The uprising portion  2 B is exemplified by a structure including a crank support portion  35  uprising close to a front side of the main shaft portion  31 , a wheel support portion  36  provided in a standing manner in line in a front side thereof, a saddle support tube  18  uprising from the main shaft portion  31  while being sloped rearward a little in a rear side of the crank support portion  35 , a handle support tube  16  arranged in an upper side of the crank support portion  35  and uprising while being sloped forward a little, and an arm support portion  40  uprising in the middle of the saddle support tube  18  and the crank support portion  35 . In this case, the handle support tube  16  is firmly attached to a leading end portion of a down tube  37  extending forward from the middle of the saddle support tube  18  so as to be supported. In this case, an auxiliary support member  69  is bridged between a portion near a front end portion of the down tube  37  and an upper end portion of the crank support portion  35 .  
      The saddle support tube  18  is formed in a longitudinally long rectangular tube shape, and is attached while being sloped rearward, for example, at about 10 to 25 degree, 15 degree in the present embodiment. Further, vertically longer slits  17  and 17 are formed in both side surfaces of a lower portion thereof, and a support hole  38  passing right and left is pierced in an upper portion thereof.  
      The handle support tube  16  is formed in a longitudinally longer rectangular tube shape in the same manner as the saddle support tube  18 , and is attached while being sloped forward, for example, at about 5 to 20 degree, 10 degree in the present embodiment.  
      As shown in  FIGS. 2 and 4 , the handle portion  5  includes a vertically longer handle shaft  3 , and a handle  4  extending right and left from an upper end portion thereof, and the handle  4  in accordance with the present embodiment employs a type in which both sides are curved toward an upper side and which can stably support both the arms. Further, a roller  24 A is axially attached to a lower end of the handle shaft  3  in accordance with the present embodiment.  
      The handle shaft  3  in accordance with the present embodiment is constituted, as shown in  FIG. 2 , by a handle upper shaft  3 U in which a groove type connecting attachment  61  is firmly attached to a lower end portion, and a handle lower shaft  3 D having a horizontal shaft  62  pivoting the connecting attachment  61 , and a fixing bolt  63  protruding to a front side. The handle upper shaft  3 U and the handle lower shaft  3 D are coupled so as to be bendable around the horizontal shaft  62 . A notch  64  is formed in a front lower edge of the connecting attachment  61 . Screwing a fasting device  65  having a thread hole with the fixing bolt  63  inserted into the notch  64 , the connecting attachment  61  is fixed to an upper end portion of the handle lower shaft  3 D. Accordingly, there is formed the handle shaft  3  in which the handle lower shaft  3 D and the handle upper shaft  3 U are continuously integrated. Further, the handle shaft  3  is supported to the base frame portion  2  so as to be slidable up and down by inserting the handle lower shaft  3 D into the handle support tube  16 . Further, when it is not used or it is carried, it is possible to detach the fastening device  65  so as to slope the upper portion of the handle portion  5  rearward, as shown in  FIG. 11 . Accordingly, the structure is preferable in a point that it can be accommodated and carried in a compact manner. In this case, a front holding hole  42 F passing right and left is pierced close to an upper side of the handle lower shaft  3 D.  
      The saddle portion  8  is constituted, as shown in  FIGS. 2 and 4 , by a vertically longer saddle shaft  6 , and a saddle  7  attached to an upper end portion thereof. The saddle shaft  6  in accordance with the present embodiment is constituted by a saddle upper shaft  6 U, and a saddle lower shaft  6 D having a larger-diameter tubular shape than the saddle upper shaft  6 U. Further, the structure is made such that a lower portion of the saddle upper shaft  6 U is inserted to an upper portion of the saddle lower shaft  6 D and is fastened by using a fastening bolt device  43 . When detaching the fastening bolt device  43 , it is possible to expand and contract a length of the saddle shaft  6  by sliding the lower portion of the saddle upper shaft  6 U within the saddle lower shaft  6 D. Fixing again by the fastening bolt device  43 , it is possible to adjust a saddle height in correspondence to the physical constitution.  
      A rear holding hole  42 B passing through right and left is pierced in an upper portion of the saddle lower shaft  6 D in accordance with the present embodiment. Further, as shown in  FIGS. 2 and 6 , there is formed in a lower portion thereof a projection piece  19  constituted by an axle  19 A extending right and left and a support wheel  19 B pivoted to the axle  19 A. Further, the saddle shaft  6  is supported to the base frame portion  2  so as to be slidable up and down by inserting the saddle lower shaft  6 D to the saddle support tube  18  in a state in which the projection piece  19  is protruded to an outer side through the slit  17 .  
      As shown in  FIGS. 3 and 5 , the rotating means  12  includes a pivot shaft  9 , a crank arm  11  axially attached to the pivot shaft  9  and a pedal  10 , and further has an inertia means  45  for applying a rotating force to a pedaling rotational motion, in the present embodiment. The pivot shaft  9  is supported to the crank support portion  35  via a bearing shaft bush (not shown), and right and left crank arms  11  and  11  extending perpendicular to an axial direction of the pivot shaft  9  and in opposite directions to each other are attached to both sides thereof. A pedal  10  is attached to a leading end portion of the crank arm  11 . In the same manner as a normal bicycle, the structure is made such that the user sitting on the saddle  7  can execute a cycle exercise by working the pedal  10  on the basis of a foot drive.  
      The inertia means  45  is structured such as to include a large-diameter pulley  46  fixed to the pivot shaft  9  and rotating integrally with the crank arm  11 , a flywheel  47  axially attached to the wheel support portion  36  so as to rotate, a small-diameter pulley  48  rotating integrally with the flywheel  47 , and a driving belt  49  bridged between the large-diameter and small-diameter pulleys  46  and  48 . Further, a rotation of the pedal  10  is transmitted to the flywheel  47  while a rotation ratio is increased via the driving belt  49 . A rotating force on the basis of the rotation of the flywheel  47  is transmitted to the pedal  10  by a similar feeling to an inertia of actually riding a bicycle. As a result, an effective training effect can be obtained.  
      In the flywheel  47 , at least a peripheral surface is formed by a ferromagnetic material such as an iron, a martensitic or ferrite stainless steel, a nickel, a cobalt or the like. Further, a load means  53  is equipped by attaching a magnetic belt  50  structured such that magnetic pieces are arranged in a band shape around the peripheral surface of the flywheel  47 . Further, a fixed braking force is applied to the rotation of the flywheel  47  on the basis of a magnetic force operation of the load means  53 , so that a fixed load is applied to the rotating motion of the pedal  10 . In this case, it is possible to operate a pulling degree of a wire  51  pulling one end of the magnet belt  50  by an adjusting knob  52  (shown in  FIG. 2 ) attached to the down tube  37 . Adjusting a gap between the magnet belt  50  and the flywheel  47  on the basis of the operation, it is possible to increase and decrease a magnetic force strength so as to increase and decrease the load applied to the pedal  10 .  
      The elevating means  13  includes a cam wheel  14  attached to the pivot shaft  9  so as to rotate working with the pedaling, and a swing arm  15 . Further, the handle  4  and the saddle  7  are moved up and down by using a rotational driving force of the rotating means  12 .  
      An entire periphery cam surface  28  having the pivot shaft  9  as a core is formed in an outer periphery of the cam wheel  14 . As shown in  FIGS. 7 and 8 , the entire periphery cam surface  28  includes a far cam surface  28 A in which a distance in a radial direction from a center of rotation of the pivot shaft  9  is the longest, and an opposite side cam surface  28 D in which a distance in a radial direction is smaller than the far cam surface  28 A and which is arranged in an approximately opposite side to the far cam surface  28 A while having the pivot shaft  9  therebetween. In this case, the far cam surface  28 A means a region including a range between 30 degrees in a peripheral direction around the pivot shaft  9  from a position where the radial distance is the longest. Further, the approximately opposite side means a region including a range between 30 degrees in the peripheral direction around the pivot shaft  9  from an opposite direction while having the pivot shaft  9  therebetween.  
      When working the pedal  10  by the foot so as to rotate the crank arm  11 , the roller  24 A in the lower end of the handle shaft  3  is brought into slidable contact with the upward surface of the cam wheel  14  rotating integrally with the crank arm  11 . Accordingly, the handle shaft  3  is pushed up at a time of being brought into slidable contact with the far cam surface  28 A of the entire periphery cam surface  28 . It is moved downward at a time of being brought into slidable contact with the opposite side cam surface  28 D. Since these motions are repeated working with the rotation of the cam wheel  14 , the handle shaft  3  repeats the elevating motion.  
      The swing arm  15  is arranged so as to extend back and forth as shown in  FIG. 5 . Further, an approximately center portion thereof is axially attached to an upper end portion of the arm support portion  40 , and the swing arm  15  is supported like an equiarmed balance so as to freely swing within a vertical surface. A roller  24 B is axially attached to a front end portion of the swing arm  15 . The roller  24 B is brought into slidable contact with a downward surface of the entire periphery cam surface  28  of the cam wheel  14 . On the other hand, a rear end portion of the swing arm  15  is branched in a C shape toward both sides of the saddle support tube  18 , as shown in  FIG. 6 , and extends to a lower side of a support wheel  19 B of the projection piece  19  formed in the lower portion of the saddle shaft  6 .  
      Further, the cam wheel  14  is rotated on the basis of the training that the user sitting on the saddle  7  works the pedal  10  by the foot. As shown in  FIGS. 7 and 9 A, when the far cam surface  28 A is positioned at the downward surface of the cam wheel  14 , the roller  24 B of the swing arm  15  brought into slidable contact therewith is pushed down. Further, on the contrary, the ascending rear end portion pushes up the saddle shaft  6 . At the same time, since the handle shaft  3  brought into slidable contact with the opposite side cam surface  28 D of the upward surface is brought into slidable contact with the entire periphery cam surface  28  at a low position, the handle shaft  3  is supported in a descending state. Next, when the cam wheel  14  is rotated at 90 degree, the saddle shaft  6  is moved downward so as to be returned to an average height, and the handle shaft  3  is contrarily ascended to an intermediate height, as shown in  FIG. 9B . Further, when the cam wheel  14  is rotated at  90  degree, the opposite side cam surface  28 D is positioned in a downward surface of the cam wheel  14 , as shown in  FIGS. 8 and 9 C. Accordingly, the roller  24 B of the swing arm brought into slidable contact therewith is moved upward, whereby the rear end portion is moved downward and the saddle shaft  6  is changed to the low position. At the same time, the far cam surface  28 A rotating to the upward surface pushes up the handle shaft  3 . Next, when the cam wheel  14  is rotated at 90 degree, the saddle shaft  6  is again moved upward so as to be returned to the average height as shown in  FIG. 9D . On the contrary, the handle shaft  3  is moved downward to the intermediate height.  
      As long as the cam wheel  14  is rotated on the basis of the pedaling exercise, the pattern mentioned above of elevating motions of the saddle shaft  6  and the handle shaft  3  is repeated. Accordingly, the posture of the user keeps on changing at a fixed cycle. Therefore, even in the indoor training which tends to be monotonous, the load is applied to the different muscles in the different positions on the basis of the change of the posture, and the subtly changing load is repeatedly applied to the same muscle. Thus, it is possible to obtain a well-balanced training effect. Further, a light rhythm feeling is generated in the pedaling exercise on the basis of the continuous vertical motion at a fixed cycle. Further, an uplifting feeling is added to the indoor training, and it is possible to enjoy the long hours exercise without being tired.  
      Further, as mentioned above, the handle shaft  3  and the saddle shaft  6  are moved up and down at the alternately inverted timings. Accordingly, it is necessary for the user training under a condition in which the vertical motion of the sitting saddle  7  and the vertical motion of the handle  4  are repeated in the inverted phases to maintain a balance at a timing which is not experienced in the daily life by using an entire body for maintaining the exercising posture. As a result, since the exercise effect is significantly improved, and it is possible to obtain the exercise feeling which is not normally experienced, it is possible to train while enjoying a fresh feeling.  
      Further, since the handle  4  or the saddle  7  are moved up and down by using the driving force generated by working the pedal  10  by the foot, the rotating load of the pedal  10  is increased and the amount of exercise is increased at a time of being moved upward, whereby the training effect is further improved. Further, since the exercise load is continuously increased and decreased periodically in accordance with the vertical motion of the handle  4  or the saddle  7 , it is possible to effectively stimulate the muscle and it is possible to obtain a high effect of increasing the muscle force.  
      In the cam wheel  14  in accordance with the present embodiment, as shown in  FIG. 7 , the opposite side cam surface  28 D is formed by the near cam surface  28 B existing in the region in which the radial distance from the pivot shaft  9  is the shortest, in the entire periphery cam surface  28 . Accordingly, the structure is made such as to increase the elevating stroke of the handle  4  or the saddle generated by a difference between the radial distance of the far cam surface  28 A and the radial distance of the opposite side cam surface  28 D. As a result, since it is possible to achieve the stimulation applied to the user to the maximum, it is possible to obtain a great exercise effect.  
      In the present embodiment, there is formed the entire periphery cam surface  28  in which the far cam surface  28 A and the opposite side cam surface  28 D are formed as a smoothly continuous circular arc surface. As a result, the lower end portion of the saddle shaft  6  or the front portion of the swing arm  15  brought into slidable contact with the surface of the entire periphery cam surface  28  can smoothly move along the circular arc surface. Therefore, it is possible to smoothly exercise without generating any overburden in the pedal exercise. Further, the upward and downward motion of the saddle  7  or the handle  4  forms a smoothly continuous motion. As a result, it is possible to apply a comfortable stimulation to the user.  
      Further, the cam wheel  14  in accordance with the present embodiment is structured by using a so-called circular eccentric cam  14 A in which the entire periphery cam surface  28  is formed as a circle and which is supported to the pivot shaft  9  at a position eccentric from a center of the circle. Accordingly, the far cam surface  28 A is arranged such that a distance from the center of rotation of the pivot shaft  9  corresponds to a length obtained by adding an amount of eccentricity to the radial distance of the circle. On the other hand, the near cam surface  28 B is positioned in an opposite side to the far cam surface  28 A. Further, it is arranged such that the distance from the center of rotation of the pivot shaft  9  corresponds to a length obtained by subtracting the amount of eccentricity from the radial distance of the circle. Using the circular eccentric cam  14 A mentioned above, the structure of the cam mechanism is made simple. Accordingly, the handle  4  or the saddle  7  can be smoothly moved up and down so as to improve a use feeling, and it is preferable in points that the cost can be suppressed and the maintenance can be easily executed.  
      The handle shaft  3  and the saddle shaft  6  in which the vertical motion is repeated little by little by the elevating means  13  having the cam wheel  14 , are inserted to the handle support tube  16  and the saddle support tube  18  so as to be supported as mentioned above. Therefore, friction is reduced, resulting in smooth vertical movement. As a result, the rotating motion of the pedal  10  becomes smooth, and an unreasonable load is not applied to the knee, the foot or the like of the user.  
      Further, in the present embodiment, as shown in  FIG. 5 , the lower portion of the handle shaft  3  is bridged a spring  25  with respect to the swing arm  15 , and is provided with a pressing means  26  for pressing the roller  24 A in the lower end portion of the handle shaft  3 , and the roller  24 B in the front end portion of the swing arm  15  toward the cam wheel  14 . Owing to the pressing means  26 , the handle shaft  3  does not flip up even if the rotating speed of the cam wheel  14  becomes high. Accordingly, the roller  24 A can smoothly roll along the surface of the cam wheel  14 . As a result, the handle shaft  3  can be smoothly moved up and down without rattling. Further, the roller B of the swing arm  15  can smoothly roll along the lower surface of the cam wheel  14 .  
      The canceling means  20  is constituted by a handle shaft holding means  21  provided in the handle portion  5 , and a saddle shaft holding means  22  provided in the saddle portion  8 , as shown in  FIG. 10 . Further, the vertical motions of the handle  4  and the saddle  7  can be respectively selected so as to be individually stopped.  
      The handle shaft holding means  21  is formed by front holding holes  42 F of the handle shaft  3 , and a front support pin  23 F continuously passing through them, as shown in  FIG. 2 . In the case of lifting up the handle shaft  3  a little, the front holding holes  42 F lying concealed in the inner side of the handle support tube  16  moves upward higher than an upper edge portion of the handle support tube  16  so as to be exposed to the outer portion. In this state, in the case of inserting the front support pin  23 F to the front holding holes  42 F and canceling the lift-up of the handle shaft  3 , the front support pin  23 F fixed to the front holding holes  42 F is engaged with the upper edge portion of the handle support tube  16  and is supported at the height position, as shown in  FIG. 10 . As a result, the roller  24 A in the lower end of the handle shaft  3  is moved upward away from the peripheral surface of the rotating cam wheel  14 . Accordingly, the handle  4  is not lifted up by the cam wheel  14  rotating on the basis of the pedaling exercise, and standstills while the vertical motion is stopped. The handle shaft holding means  21  mentioned above can securely cancel the elevating motion of the handle  4  on the basis of the simple structure. In this case, as shown in  FIG. 1 , when the front support pin  23 F is not used, it is elastically engaged with a clip-shaped holder  55  in the front surface of the handle shaft  3  so as to be temporarily placed.  
      Further, the saddle shaft holding means  22  is formed by a support hole  38  formed in the saddle support tube  18 ., the rear holding hole  42 B of the saddle shaft  6 , and a rear support pin  23 B attached to the saddle support tube  18  via a chain  56 , as shown in  FIG. 2 . As shown in  FIG. 10 , when lifting up the saddle shaft  6  a little, the support hole  38  and the rear holding hole  42 B are communicated with each other by matching at their heights, and the rear support pin  23 B is continuously inserted to the support hole  38  and the front holding hole  42 F. The saddle shaft  6  is supported to the rear supporting pin  23 B so as to be fixed at the height position in the manner mentioned above. Accordingly, the projection piece  19  provided in the lower end is positioned so as to be upward away from the rear end portion of the swing arm  15  swinging in conjunction with the rotating cam wheel  14 . As a result, the saddle  7  is not pushed up by the swing arm  15  swung on the basis of the pedaling exercise, and standstills while stopping the vertical motion. The saddle shaft holding means  22  structured in the manner mentioned above can securely cancel the elevating motion of the saddle  7  on the basis of the simple structure.  
      As mentioned above, there is provided the canceling means  20  which is individually provided with the handle shaft holding means  21  and the saddle shaft holding means  22  capable of stopping the vertical motions of the handle  4  and the saddle  7 , and can independently select the stops of the vertical motions. Accordingly, the pedaling exercise can be executed by selecting an associated mode in which both of the handle  4  and the saddle  7  are moved up and down, a saddle swing mode in which only the saddle  7  is moved up and down, a handle swing mode in which only the handle  4  is moved up and down, and a stationary mode in which both of the handle  4  and the saddle  7  are stationary, in correspondence to the combination thereof. Various changes are generated in the training on the basis of the changes in each of the modes, it is possible to amusingly execute the training for a change of air, and it is possible to freely select the mode in correspondence to a personal preference. Further, it is possible to select an amount of exercise in correspondence to a degree of fatigue and a physical strength, by increasing and decreasing the exercise load on the basis of the switching.  
      Further, the canceling means  20  employs the simple structure of cutting off the coordinated motion with the cam shaft  14  by using the support pin  23  which is engaged with the handle support tube  16  or the saddle support tube  18 , and is engaged with the handle shaft  3  or the saddle shaft  6  inserted thereto. Accordingly, it is possible to securely cancel the elevating motions of the handle  4  and the saddle  7  on the basis of the simple operation generated only by inserting the support pin  23 .  
      In the present embodiment, as shown in  FIG. 1 , a box-like housing  67  having an open lower side is fixed to the base frame portion  2  so as to cover the elevating means  13 . Since it is possible to prevent the user&#39;s clothing or the like from getting caught in the movable portion on the basis of a provision of the housing  67 , a safety is improved. Further, it is possible to improve a reliability of the drive portion by a dustproof. A bellows-shaped sleeve  68  is integrally provided in a rising manner in a rear portion of the housing  67 , and is outside inserted to the saddle support tube  18 .  
       FIG. 12  exemplifies the other embodiment. A description will be given below of different contents and a description of the other will be omitted by attaching the same reference numerals to the main structured appearing in the drawing. The swing arm  15  in accordance with the present embodiment is provided with the pair of rollers  27  and  27  which are arranged back and forth in a front end portion thereof so as to be turned up. Further, the pair of rollers  27  and  27  is brought into slidable contact with the lower surface of the cam wheel  14  in a state of being respectively axially attached to both leading end portions of an approximately U-shaped auxiliary device  66  pivoted to a front end portion of the swing arm  15  in a base portion. Accordingly, a pair of rollers  27  can smoothly roll on the surface of the cam wheel  14  at two front and rear points. Therefore, the saddle  7  can more securely and smoothly move up and down.  
       FIGS. 13 and 14  exemplify further the other embodiment. The cam wheel  14  in accordance with the present embodiment is provided with the entire periphery cam surface  28  having a pair of far cam surfaces  28 A arranged in both sides of the pivot shaft  9  while having the center of the pivot shaft  9  therebetween, and a pair of inner cam surfaces  28 E arranged in both sides of the pivot shaft  9  while having the center of the pivot shaft  9  therebetween in the same manner. In the far cam surface  28 A, the distance in the radial direction from the center of the pivot shaft  9  is the longest. The inner cam surface  28 E is formed such that the radial distance is smaller than the far cam surface  28 A.  
      Further, in the same manner as the embodiment mentioned above, the lower end of the handle shaft  3  is brought into slidable contact with the upward surface of the cam wheel  14 . Further, the front portion of the swing arm  15  pushing up the saddle shaft  6  in the rear portion is brought into slidable contact with the downward surface of the cam wheel  14 . Accordingly, as shown in  FIG. 13 , when the inner cam surface  28 E of the cam wheel  14  is positioned in the vertical direction of the pivot shaft  9 , both of the handle shaft  3  and the saddle shaft  6  are moved downward. Further, as shown in  FIG. 14 , when the cam wheel  14  is rotated and the far cam surface  28 A is positioned in the vertical direction of the pivot shaft  9 , the handle shaft  3  is directly pushed up by the far cam surface  28 A. Further, since the front portion is pushed down, the saddle shaft  6  is simultaneously pushed up by the rear portion of the ascending swing arm  15 . In the case that the cam wheel  14  is rotated in the manner mentioned above, the sitting saddle and the handle repeat the vertical motion at the same timing. Accordingly, the user can amusingly train while getting into the rhythm by the entire body. Further, since the saddle and the handle are moved up and down in accordance with the same motion, the elderly person that the exercise capacity such as physical reflexes or the like is lowered can use with a safe conscience.  
      In the cam wheel  14  in accordance with the present embodiment, the inner cam surface  28 E is formed by the near cam surface  28 B in which the radial distance from the pivot shaft  9  exists in the shortest range in the entire periphery cam surface  28 . Accordingly, the handle shaft  3  and the saddle shaft  6  can be moved up and down largely to the maximum. Therefore, it is possible to effectively stimulate the user, and it is possible to improve a training effect by increasing the exercise load.  
      In the present embodiment, there is formed the entire periphery cam surface  28  in which the far cam surface  28 A and the near cam surface  28 B form the smoothly continuous circular arc curved surface. Accordingly, the lower end portion of the saddle shaft  6  or the front portion of the swing arm  15  brought into slidable contact with the surface of the entire periphery cam surface  28  can smoothly move while being brought into slidable contact with the circular arc curved surface. Therefore, it is possible to amusingly train on the basis of the light pedal exercise. Further, since the saddle  7  or the handle  4  is continuously moved up and down smoothly, it is possible to apply the comfortable stimulation to the user.  
      In the cam wheel  14  in accordance with the present embodiment, the pair of far cam surfaces  28 A and the pair of near cam surfaces  28 B are respectively arranged symmetrically with respect to the center of the pivot shaft  9 . Further, a virtual line connecting the far cam surfaces  28 A through the center of the pivot shaft  9  and a virtual line connecting the near cam surfaces  28 B in the same manner are arranged in such a manner as to intersect perpendicularly at the center of the pivot shaft  9 . In other words, the far cam surfaces  28 A and the near cam surfaces  28 B are alternately arranged at a uniform interval of 90 degree in the peripheral direction from the center of the pivot shaft  9 , respectively. As a result, since the saddle  7  and the handle  4  are moved up and down at a fixed cycle by rotating the pedal  10 , the regular vertical motion forms a comfortable stimulation, and it is possible to comfortably train.  
      The cam wheel  14  in accordance with the present embodiment employs an oval cam wheel  14 B in which the virtual line connecting the far cam surfaces  28 A to each other through the center of the pivot shaft  9  is set to a long axis, and the virtual line connecting the near cam surfaces  28 B to each other is set to a short axis. Accordingly, since the handle shaft  3  and the saddle shaft  6  brought into slidable contact with the entire periphery cam surface  28  repeat a smooth and regular vertical motion, it is possible to obtain a comfortable stimulation.  
      In this case, the description mentioned above exemplifies the mode for carrying out the present invention. Accordingly, the technical scope of the present invention is not limited to this, but various modified embodiments are included in addition to the embodiments mentioned above.