JP2007296080A - Body training machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a body training machine, in which great training effect is provided, enjoyable training is provided while proper stimulation is felt in spite of monotonous pedaling action, and compact constitution is achieved. <P>SOLUTION: This machine comprises a base frame part, a handlebar part, a saddle part, a rotating means, and a lifting means. The lifting means is composed of a cam ring and a swing arm. A handlebar shaft makes slide contact with an upward surface of the cam ring at a lower end. The swing arm makes slide contact with a downward surface of the cam ring at a front part, and in contact with a lower part of a saddle shaft at a rear part to push up the saddle shaft in accordance with upward swinging of the swing arm at a rear part. The cam ring includes a full circumference cam surface having a far cam surface of which radial distance from the rotation center of a pivotal support shaft is the longest, and the other side cam surface positioned almost on the opposite side of the far cam surface to have a smaller radial distance than the far cam surface. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a body training device that can perform pedaling exercise happily while receiving a pleasant stimulus due to vertical movement, and that can provide an excellent training effect.

  In the midst of a health-oriented trend, many physical training devices that can be used to train indoors have been proposed in order to eliminate lack of exercise. Among them, a bicycle type body training device that has a saddle portion, a pedal crank portion, a handle portion, and a load device that can adjust the weight of the pedal on the installation base, and trains by pedaling exercise is popular. .

  By using this type of body training device, you can easily perform cycling exercises that match your individual physical strength indoors. However, since it is a training that repeats the simple motion of pedaling while continuing the same exercise posture, the training area is limited and the effect of the training is limited, and the exhilaration feeling when running outdoors on a bicycle Cannot be obtained and does not last long.

  Therefore, as shown in FIG. 13, a horizontal U-shaped frame d supporting the handle a and the saddle b is pivotally attached to the pivot shaft e and rotated in conjunction with the movement of the pedal crank f through the belt g. A wheel h is provided, and a link i is bridged between the wheel h and the frame b to form a crank lever mechanism j. The handle a and the saddle b are moved back and forth in conjunction with the rotation of the pedal crank f. There has been proposed a training device that swings at a distance (for example, see Patent Document 1).

  This trainer swings back and forth with pedaling exercise, so you can feel the riding-like movement, and you can train while enjoying this change with your body. However, since the motion of rotating the legs is accompanied by the motion of swinging the upper body back and forth, it is easy to place an excessive burden on the waist, spine, etc., and at the same time, the motion rhythm of the legs may be disrupted and the training effect may be reduced.

  Further, as shown in FIG. 14, a health promotion device is proposed in which a roller n is provided in sliding contact with the upper surface of the eccentric cam m attached to the crankshaft k, and the saddle t moves up and down in conjunction with the vertical movement of the roller n. (For example, refer to Patent Document 2).

JP 2002-210037 A

      Japanese Utility Model Publication No. 7-43344

  In the above-described health promotion device, the saddle t continuously moves up and down in conjunction with the rotation of the pedal, so that a change that moves the body up and down is created, and the user can feel a certain stimulus. However, in order to obtain a training effect, it is necessary to continue exercising for a certain period of time, and there is a problem that the body is immediately accustomed to the change only by raising and lowering the monotonous saddle t, and the stimulation is faded. Furthermore, since the entire weight is repeatedly applied to the crankshaft k as a bending load by the raising and lowering of the saddle t, there is a problem that the size of the device is increased together with the bearing mechanism and the handling property is lowered.

  The present invention is based on providing a cam wheel with which the handle shaft is slidably contacted at the lower end, and a lifting / lowering means having a swinging arm pivotally supported on the base frame so as to be swingable in a vertical plane. The goal is to provide a body training device that can be obtained in a monotonous pedaling exercise and can be trained happily while feeling moderate stimulation.

  In order to achieve the object, in the invention according to claim 1, a base frame portion that can be vertically supported, a handle portion provided with a handle on a handle shaft that can be raised and lowered at the front portion of the base frame portion, and the base A user seated on the saddle drives a foot on a saddle portion provided with a saddle at an upper end of the saddle shaft supported at the rear portion of the frame portion and a pivot shaft rotatably supported on the base frame portion. A rotating means provided on both sides of the base frame portion with a crank arm having a pedal at a tip; and a lifting means for raising and lowering the handle or the saddle by driving the rotating means. A cam wheel attached to the shaft and accompanied with the pivot shaft, and a swing arm having a middle portion pivotally supported on the base frame portion and capable of swinging in a vertical plane. The handle shaft has a lower end portion. The swing arm is in sliding contact with the upward surface of the cam ring and the swing arm The front part is in sliding contact with the downward surface of the cam ring, the rear part is in contact with the lower part of the saddle shaft, and the saddle shaft is pushed upward with the upward swinging of the rear part of the swinging arm. A far cam surface having the longest radial distance from the center of rotation of the support shaft, and an opposite cam surface which is located on the substantially opposite side of the far cam surface and whose radial distance is smaller than the far cam surface. A circumferential cam surface is provided.

  In the invention according to claim 2, in the cam wheel, the opposite cam surface is a near cam surface having the smallest radial distance in the entire circumferential cam surface, and the cam wheel of the invention according to claim 3 comprises: The far cam surface and the opposite cam surface form an arc surface, and the cam ring of the invention according to claim 4 is characterized in that the all-around cam surface is a circle and the center of the circle is eccentric and the pivot is supported. A circular eccentric cam having a far cam surface in which an eccentric amount is added to a radial distance by being attached to a shaft, and the near cam surface in which the eccentric distance is subtracted from the radial distance on the opposite side of the far cam surface. It is characterized by being.

  In the invention according to claim 5, the base frame portion is attached to a handle shaft that is externally attached to and supported by a handle shaft that is pushed up and raised by the cam wheel, and a saddle shaft that is pushed up and raised by a swing arm. It has a saddle support cylinder that is supported by extrapolating and has a vertical slit extending in the axial direction of the saddle shaft, and the saddle shaft projects out of the saddle support cylinder from the vertical slit and swings. It has the protrusion which engages with an arm, It is characterized by the above-mentioned.

  In the invention according to claim 6, the handle portion and the saddle portion are individually formed with release means capable of releasing the linkage with the elevating means and stopping the vertical movement of the handle and the saddle. A pedaling motion can be selected by selecting a cooperating mode that moves up and down, a saddle vibration mode in which only the saddle moves up and down, a handle vibration mode in which only the handle moves up and down, and a stationary mode in which both the handle and the saddle are stationary.

  In the invention according to claim 7, the release means comprises handle shaft holding means for holding the handle shaft in the handle support cylinder at a height at which the handle shaft cannot contact the cam ring. The release means comprises saddle shaft holding means for holding the saddle shaft in the saddle support cylinder at a height at which the swing arm cannot contact the projecting piece, and in the invention according to claim 9, the release means comprises: The handle shaft or the saddle shaft is engaged with the handle support tube or the saddle support tube, and the handle shaft or the saddle shaft is engaged with the handle shaft. It is characterized by that.

  In the invention according to claim 10, the lower end portion of the handle shaft is provided with a roller slidably contacting the cam wheel, and has a pressing means having a spring that presses the roller toward the cam wheel. In the invention according to the invention, the swing arm has a pair of rollers arranged in the front-rear direction at a front portion thereof, and is in sliding contact with the cam wheel via the pair of rollers.

  In the invention according to claim 1, since the user sitting on the saddle is driven by an operation of training by pedaling on the pedal, the handle or the saddle moves up and down, so the posture of the user changes in a constant cycle. repeat. As a result, even in indoor training, the posture of the user changes, so that the load acts on different muscles and the slightly changed load repeatedly acts on the same muscle. A good training effect can be obtained. At the same time, up and down movements repeated at regular intervals create a light rhythmic feel for pedaling exercises, add a sense of excitement to indoor training that tends to be monotonous, and allow you to enjoy long-term exercise without getting tired.

  In addition, the cam wheel of the elevating means has an all-around cam surface having a far cam surface having the longest radial distance and an opposite cam surface having the radial distance smaller than the far cam surface, and the handle shaft has a lower end portion. Slides up and down on the cam wheel upward surface, the middle part is pivotally supported by the base frame part, and the saddle shaft is pushed up together with the upward swing of the rear part of the swinging arm whose front part is in sliding contact with the cam wheel downward surface Therefore, when the pedal is rotated, the handle shaft and the saddle shaft are moved up and down alternately. Therefore, since the vertical movement of the saddle on which the user sits and the vertical movement of the handle are repeated in opposite phases, in order to maintain the posture, the user does not experience it in daily life using the whole body. A balance operation is required, and as a result, a high exercise effect is obtained. Moreover, since you can get a fresh motor sensation that you don't normally feel, you can train while having fun.

  Further, since the steering wheel or saddle is lifted and lowered using the driving force of the pedal toes, the rotational load of the pedal increases when the pedal is lifted to increase the amount of exercise and improve the training effect. In addition, since the rotational load repeats periodic increase / decrease accompanying raising / lowering of the handle or the saddle, the load increasing / decreasing in a wave shape acts on the muscle and effectively stimulates it, and as a result, the effect of increasing muscle strength is enhanced.

  As in the invention according to claim 2, when the opposite cam surface is formed of a near cam surface having a minimum radial distance, each of the lift strokes of the handle or the saddle can be formed large, so that the motion effect is maximized. When the far cam surface and the opposite cam surface form an arcuate surface as in the invention according to claim 3, the lower end portion of the saddle shaft or the front portion of the swing arm that is in sliding contact with the entire cam surface is Since it can move smoothly, it can move smoothly without unreasonable pedal movement, and as in the invention according to claim 4, the cam ring is eccentric from the radial distance and the far cam surface obtained by adding an eccentric amount to the radial distance. When a circular eccentric cam having the near cam surface with a reduced distance is used, the structure is simple, so that the handle or saddle can be moved up and down smoothly, the cost can be reduced, and maintenance can be facilitated.

  As in the invention according to claim 5, when the handle shaft that moves up and down and the saddle shaft are supported by extrapolating the handle support cylinder and the saddle support cylinder, both the shafts can move up and down smoothly, so that the pedal is smooth. It can be rotated and an excessive load on the knee, ankle, etc. can be prevented.

  When release means capable of stopping the vertical movement of the handle and the saddle are individually formed as in the invention according to claim 6, a combined mode in which both the handle and the saddle move up and down by the combined use, only the saddle moves up and down. Pedal operation can be selected by selecting four types of operation modes including a saddle vibration mode, a handle vibration mode in which only the handle moves up and down, and a stationary mode in which both the handle and the saddle are stationary. Therefore, various changes can be given to the exercise, and by using these properly, it is possible to change the mood and enjoy training, and it is also possible to select a mode according to personal preference. In addition, the amount of exercise according to the user's physical strength, fatigue level, and the like can be selected by increasing or decreasing the exercise load by the switching.

  If the release means is constituted by the handle shaft holding means for holding the handle shaft at a height at which the cam wheel cannot be contacted as in the invention according to claim 7, the lifting and lowering operation of the handle can be reliably released with a simple structure. Further, as in the invention according to claim 8, when the release means is constituted by the handle shaft holding means for holding the saddle shaft at a height at which the protruding piece cannot contact the swinging arm, the raising and lowering operation of the saddle can be simplified. Further, as in the invention according to claim 9, a handle support tube and a handle shaft inserted through the handle support tube, or a saddle support tube and a support pin penetrating through the saddle shaft inserted through the handle support tube are provided. When the release means is used, the lifting operation of the handle or the saddle can be reliably released by a simple operation of only inserting the support pin.

  As in the invention according to claim 10, when the roller that slides on the cam wheel is provided at the lower end of the handle shaft and the pressing means that presses the roller against the cam wheel is provided, the handle shaft is not flipped up. The roller can roll along the surface of the cam ring, and as a result, the handle shaft can move up and down smoothly without rattling. When a pair of rollers slidably contacting the front and rear cam wheels are provided, the pair of rollers rolls smoothly along the cam wheel surface, so that the saddle can be raised and lowered smoothly.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the body training device 1 includes a base frame portion 2, a handle portion 5 at the front portion of the base frame portion 2, a saddle portion 8 at the rear portion, and a rotating means 12 that performs pedaling motion. Elevating means 13 for moving the handle 4 or the saddle 7 up and down. Further, in the present embodiment, there is a release means 20 that can release the action of the elevating means 13 and stop the vertical movement of the handle or the saddle.

  The base frame portion 2 constitutes the base of the device, and includes a seat portion 2A installed on the placement surface, and an upright portion 2B rising from the seat portion 2A. In the present embodiment, the seat portion 2A is, as shown in FIGS. 2 and 4, a trunk shaft portion 31 extending back and forth in the center, and a forearm portion 32 extending laterally from the front and rear end portions of the trunk shaft portion 31, respectively. It consists of a rear arm portion 33 and has a substantially letter E shape. The trunk portion 31 is made of a flat steel pipe, the forearm portion 32 and the rear arm portion 33 are made of a round steel pipe, and are welded to the front and rear ends of the trunk portion 31. Further, anti-slip caps 34 are attached to the end portions of the forearm portion 32 and the rear arm portion 33. In this specification, the handle 4 is disposed and the side facing the user is the front.

  The upright portion 2B is inclined slightly rearward at the rear side of the crank support portion 35, the crank support portion 35 standing up in front of the trunk shaft portion 31, the wheel support portion 36 erected side by side in front of the crank support portion 35. The saddle support cylinder 18 rising from the trunk shaft portion 31, the handle support cylinder 16 rising above the crank support section 35 and tilting slightly forward, and a small height between the saddle support cylinder 18 and the crank support section 35. And an arm support portion 40 that rises in the above example. The handle support cylinder 16 is fixedly supported at the tip of a down tube 37 extending forward from the middle of the saddle support cylinder 18. An auxiliary support material 69 is bridged between the vicinity of the tip of the down tube 37 and the upper end of the crank support 35.

  The saddle support cylinder 18 has a rectangular tube shape that is long in the front-rear direction, and is attached with an inclination of, for example, about 10 to 25 °, 15 ° in this embodiment. Long slits 17 and 17 are formed on both side surfaces of the lower portion, and support holes 38 penetrating left and right are formed in the upper portion.

  Similar to the saddle support cylinder 18, the handle support cylinder 16 has a rectangular tube shape that is long in the front-rear direction.

  As shown in FIGS. 2 and 4, the handle portion 5 includes a vertically long handle shaft 3 and a handle 4 extending from the upper end portion to the left and right, and the handle 4 of this embodiment is curved with its both sides facing upward. Thus, a type that can stably support both arms is used. A roller 24A is pivotally attached to the lower end of the handle shaft 3 of the present embodiment.

  As shown in FIG. 2, the handle shaft 3 of the present embodiment has a handle upper shaft 3 </ b> U having a groove-type connection fitting 61 fixed to the lower end portion, a horizontal shaft 62 that pivotally supports the connection fitting 61, and projects forward. The handle lower shaft 3D having a fixing bolt 63 is connected to the handle upper shaft 3U and the handle lower shaft 3D so as to be bent around the horizontal shaft 62 as a core. The connection fitting 61 is formed with a notch 64 at the front lower edge, and when the stopper 65 having a screw hole is screwed into the fixing bolt 63 inserted into the notch 64, the connection fitting 61 is attached to the upper end of the handle lower shaft 3D. Since the handle is fixed, a handle shaft 3 is formed in which the handle lower shaft 3D and the handle upper shaft 3U are continuously integrated. The handle shaft 3 is supported by the base frame portion 2 so as to be vertically slidable by inserting the handle lower shaft 3D into the handle support cylinder 16. Therefore, when not in use or when transported, as shown in FIG. 11, if the stopper 65 is removed, the upper portion of the handle portion 5 can be tilted backward, which is preferable in that it can be stored and transported in a compact manner. . A holding hole 42F before penetrating left and right is formed on the upper side of the handle lower shaft 3D.

  As shown in FIGS. 2 and 4, the saddle portion 8 includes a vertically long saddle shaft 6 and a saddle 7 attached to the upper end portion thereof. The saddle shaft 6 of the present embodiment includes a saddle upper shaft 6U and a saddle lower shaft 6D having a larger diameter than the saddle upper shaft 6U, and a lower portion of the saddle upper shaft 6U is inserted into an upper portion of the saddle lower shaft 6D. At the same time, it is configured to be fastened using a set bolt 43. When the set bolt 43 is loosened and the length of the saddle shaft 6 is expanded and contracted by sliding the lower portion of the saddle upper shaft 6U in the saddle lower shaft 6D and then fixed again with the set bolt 43, it fits according to the physique. This is preferable in that it can be adjusted to the saddle height.

  The saddle lower shaft 6D of the present embodiment has a rear holding hole 42B penetrating left and right at the upper portion thereof, and as shown in FIGS. 2 and 6, an axle 19A extending left and right at the lower portion and the axle 19A. A projecting piece 19 comprising a support wheel 19 </ b> B supported by the shaft is formed. The saddle shaft 6 is supported by the base frame portion 2 so as to be vertically slidable by inserting the saddle lower shaft 6D into the saddle support cylinder 18 with the protruding piece 19 protruding outward through the slit 17. The

  As shown in FIGS. 3 and 5, the rotating means 12 includes a pivot shaft 9, a crank arm 11 pivotally attached to the pivot shaft 9, and a pedal 10. And inertia means 45 for adding a moment of inertia. The pivot shaft 9 is pivotally supported by the crank support portion 35 through a bearing (not shown), and left and right crank arms 11, 11 extending in opposite directions to each other at right angles to the axial direction of the pivot shaft 9. Is attached. A pedal 10 is attached to the tip of the crank arm 11 so that a user seated on the saddle 7 can cycle by pedaling the pedal 10 by foot drive, as in a normal bicycle.

  The inertia means 45 includes a large-diameter pulley 46 that is fixed to the pivot shaft 9 and rotates integrally with the crank arm 11, and a flywheel 47 that is attached to the wheel support portion 36 and rotates integrally. 1 illustrates a configuration including a small-diameter pulley 48 and a transmission belt 49 spanned between the large-diameter and small-diameter pulleys 46 and 48. Therefore, the rotation of the pedal 10 is transmitted to the flywheel 47 while increasing the rotation ratio via the transmission belt 49, and the moment of inertia due to the rotation of the flywheel 47 is similar to the inertia of a bicycle that actually runs. As a result, an effective training effect is obtained.

  The flywheel 47 has at least a circumferential surface formed of a ferromagnetic material such as iron, martensitic or ferritic stainless steel, nickel, cobalt, and the like, and a magnet in which magnet pieces are arranged in a strip shape along the circumferential surface of the flywheel 47. A load means 53 is provided by attaching the belt 50. A constant braking is applied to the rotation of the flywheel 47 by the magnetic force action of the load means 53. As a result, a constant load is applied to the turning operation of the pedal 10. The gap between the magnet belt 50 and the flywheel 47 is adjusted by operating the tension of the wire 51 that pulls one end of the magnet belt 50 with an adjustment knob 52 (shown in FIG. 2) attached to the down tube 37. Then, it is preferable at the point which can increase / decrease the load concerning pedal 10 by adjusting magnetic strength.

  The elevating means 13 elevates and lowers the handle 4 and the saddle 7 by using the rotational drive of the rotating means 12, and is attached to the pivot shaft 9 and rotated in conjunction with pedaling. And a swing arm 15.

  The cam ring 14 is formed with an all-around cam surface 28 centered on the pivot shaft 9 on its outer periphery, and this all-around cam surface 28 is the center of rotation of the pivot shaft 9 as shown in FIGS. The far cam surface 28A having the longest radial distance from the opposite cam surface 28D, and the opposite cam surface 28D having the radial distance smaller than the far cam surface 28A and disposed substantially on the opposite side of the far cam surface 28A with the pivot shaft 9 interposed therebetween. And comprising. In addition, the said substantially opposite side means the area | region which includes the range of 30 degree | times each back and front centering on the opposite direction of the pivot shaft 9.

  When the pedal 10 is pedaled and the crank arm 11 is rotated, the roller 24A at the lower end of the handle shaft 3 is in sliding contact with the upward surface of the cam wheel 14 that rotates integrally therewith. Therefore, the handle shaft 3 is repeatedly pushed up when sliding on the far cam surface 28A of the entire circumferential cam surface 28 and lowered when sliding on the opposite cam surface 28D. Repeated up and down movement in conjunction with the movement.

  As shown in FIG. 5, the oscillating arm 15 is arranged long in the front-rear direction, and its substantially central portion is pivotally attached to the upper end of the arm support portion 40 so that it can oscillate in a vertical plane in the form of a balance. Supported. A roller 24B is axially attached to the front end portion of the swing arm 15, and the roller 24B is in sliding contact with the downward surface of the entire circumferential cam surface 28 of the cam wheel 14. As shown in FIG. 6, the rear end portion of the other swing arm 15 branches in a U shape toward both sides of the saddle support cylinder 18, and the projecting piece 19 formed at the lower portion of the saddle shaft 6. Extends below the support ring 19B.

  Thus, when the cam wheel 14 is rotated by training in which the user sitting on the saddle 7 pedals the pedal 10, as shown in FIGS. When the cam surface 28A is positioned, the roller 24B of the swing arm 15 that is in sliding contact with the cam surface 28A is pushed down, so that the rear end portion that rises conversely pushes up the saddle shaft 6 and at the same time the cam surface 28D on the opposite side of the upward surface. Since the handle shaft 3 that comes into sliding contact comes into sliding contact at a low position on the entire circumferential cam surface 28, it is supported in a lowered state. Next, when the cam wheel 14 rotates 90 degrees, as shown in FIG. 9B, the saddle shaft 6 descends to return to the average height, and conversely, the handle shaft 3 rises to an intermediate height. Further, when the cam wheel 14 is rotated 90 degrees, as shown in FIGS. 8 and 9C, the opposite cam surface 28D is positioned on the downward surface of the cam wheel 14, so that the roller 24B of the swinging arm slidably contacting the cam surface 14D. As a result, the rear end of the saddle shaft 6 is lowered and the saddle shaft 6 changes to a lower position, and at the same time, the far cam surface 28A rotated upwardly pushes up the handle shaft 3. Next, when the cam wheel 14 rotates 90 degrees, as shown in FIG. 9D, the saddle shaft 6 rises again to return to the average height, and conversely, the handle shaft 3 descends to the intermediate height.

  Hereinafter, while the cam wheel 14 is rotated by the pedaling motion, the pattern of the lifting and lowering motion of the saddle shaft 6 and the handle shaft 3 is repeated, and the posture of the user continues to change in a constant cycle. As a result, even in indoor training that tends to be monotonous, due to changes in posture, the load works on different muscles, and the slightly changed load repeatedly acts on the same muscle, A well-balanced training effect can be obtained. At the same time, the continuous up and down movement of a certain period creates a light rhythmic feeling in the pedaling exercise, adds a dynamic feeling to the indoor training, and can enjoy long-time exercise without getting tired.

  In addition, as described above, since the handle shaft 3 and the saddle shaft 6 are moved up and down alternately, the vertical motion of the saddle 7 and the vertical motion of the handle 4 are repeated in opposite phases. In order to maintain the exercise posture, the user who trains is required to maintain the balance at a timing that is not experienced in daily life using the whole body. As a result, the motor effect is remarkably improved, and a motor sensation that is not normally experienced is obtained, so that training can be performed while enjoying a fresh sensation.

  Further, since the handle 4 or the saddle 7 is lifted and lowered by using the driving force of the pedal 10 to ride, the rotational load of the pedal 10 increases when the pedal 10 is lifted, and the amount of exercise increases, thereby further improving the training effect. In addition, since this exercise load continues to periodically increase and decrease as the handle 4 or the saddle 7 moves up and down, the muscles are stimulated effectively, and an effect of increasing muscle strength can be obtained.

  As shown in FIG. 7, the cam wheel 14 of this embodiment has an opposite cam surface 28 </ b> D formed by a near cam surface 28 </ b> B in a region where the radial distance from the pivot shaft 9 is the smallest in the entire circumferential cam surface 28. It is formed. Therefore, each of the lift strokes of the handle 4 or the saddle produced by the difference between the radial direction distance of the far cam surface 28A and the radial direction distance of the opposite cam surface 28D is configured to be large, so that the stimulation to the user can be maximized. Therefore, a great exercise effect can be obtained.

  In this embodiment, the all-around cam surface 28 is formed as an arc surface in which the far cam surface 28A and the opposite cam surface 28D are smoothly continuous. As a result, the lower end portion of the saddle shaft 6 slidably contacting the surface of the all-around cam surface 28 or the front portion of the swinging arm 15 can move smoothly along the arc surface, so that the pedal motion can be smoothly performed without causing any difficulty. At the same time, the saddle 7 or the handle 4 is moved up and down smoothly and as a result, it is preferable in that a comfortable stimulus can be given to the user.

  Further, the cam ring 14 of the present embodiment is configured by using a so-called circular eccentric cam 14A supported by the pivot shaft 9 at a position eccentric from the center of the circle, with the entire circumferential cam surface 28 forming a circle. The Accordingly, the far cam surface 28A is arranged such that the distance from the rotation center of the pivot shaft 9 is a length obtained by adding an eccentric amount to the radial distance of the circle, while the near cam surface 28B is opposite to the far cam surface 28A. The distance from the center of rotation of the pivot shaft 9 is set to a length obtained by subtracting the amount of eccentricity from the radial distance of the circle. When such a circular eccentric cam 14A is used, the structure of the cam mechanism is simple, so that the handle 4 or the saddle 7 can be moved up and down smoothly to increase the feeling of use, and the cost can be reduced and maintenance is easy. This is preferable.

  Since the handle shaft 3 and the saddle shaft 6 that repeatedly move up and down by the elevating means 13 having the cam ring 14 are inserted and supported in the handle support cylinder 16 and the saddle support cylinder 18 as described above, they are supported. You can move up and down smoothly with reduced friction. As a result, the turning operation of the pedal 10 becomes smooth, and an excessive burden is not applied to the user's knees, ankles and the like.

  Further, in this embodiment, as shown in FIG. 5, a spring 25 is bridged between the lower part of the handle shaft 3 and the swing arm 15, the roller 24 </ b> A at the lower end of the handle shaft 3, and the front end of the swing arm 15. A pressing means 26 is provided to press the roller 24B of the portion toward the cam wheel 14. Even if the rotational speed of the cam wheel 14 is increased, the pressing means 26 allows the roller 24A to roll smoothly along the surface of the cam wheel 14 without the handle shaft 3 jumping up. As a result, the handle shaft 3 can move up and down smoothly without rattling. The roller B of the swing arm 15 can also roll smoothly along the lower surface of the cam wheel 14.

  As shown in FIG. 10, the release means 20 can select and individually stop the vertical movement of the handle 4 and the saddle 7, respectively, and includes a handle shaft holding means 21 provided on the handle portion 5, and a saddle. It comprises saddle shaft holding means 22 provided in the section 8.

  As shown in FIG. 2, the handle shaft holding means 21 is formed by a holding hole 42F in front of the handle shaft 3 and a support pin 23F before passing through these holes continuously. When the handle shaft 3 is lifted slightly, the front holding hole 42F hidden behind the handle support cylinder 16 rises from the upper edge of the handle support cylinder 16 and is exposed to the outside. In this state, when the front support pin 23F is inserted into the front holding hole 42F and the lifting of the handle shaft 3 is released, the front support pin 23F fixed to the front holding hole 42F is moved as shown in FIG. The roller 24A at the lower end of the handle shaft 3 separates upward from the peripheral surface of the rotating cam wheel 14 because the handle support cylinder 16 is engaged with the upper edge of the handle support cylinder 16 and supported at the height position. As a result, the handle 4 is not pushed up by the cam wheel 14 that is rotated by the pedaling motion, and the vertical movement stops and stops. Such a handle shaft holding means 21 is preferable in that the lifting and lowering operation of the handle 4 can be reliably released with a simple configuration. When the front support pin 23F is not used, it is temporarily placed in elastic engagement with a clip-shaped holder 55 on the front surface of the handle shaft 3, as shown in FIG.

  Further, as shown in FIG. 2, the saddle shaft holding means 22 is connected to the saddle support tube 18 via a support hole 38 formed in the saddle support tube 18, a holding hole 42 B behind the saddle shaft 6, and a chain 56. It is formed by the support pins 23B after being attached. As shown in FIG. 10, when the saddle shaft 6 is slightly lifted, the support hole 38 and the rear holding hole 42B communicate with each other at the same height, and the rear support pin 23B is connected to the support hole 38 and the rear front hole. Are continuously inserted into the holding holes 42F. Since the saddle shaft 6 is supported by the rear support pin 23B and fixed at this height position, the projecting piece 19 provided at the lower end of the saddle shaft 6 swings in association with the rotating cam wheel 14. It is located away from the rear end of the swing arm 15. As a result, the saddle 7 is not pushed up by the swing arm 15 that swings by the pedaling motion, and the vertical movement stops and stops. Such saddle shaft holding means 22 is preferable in that the lifting and lowering operation of the saddle 7 can be reliably released with a simple configuration.

  As described above, since the handle shaft holding means 21 and the saddle shaft holding means 22 that can stop the vertical movement of the handle 4 and the saddle 7 are provided separately, and the release means 20 that can separately select the vertical movement stop is provided, Depending on the combination, a combined mode in which both the handle 4 and the saddle 7 move up and down, a saddle vibration mode in which only the saddle 7 moves up and down, a handle vibration mode in which only the handle 4 moves up and down, and a stationary mode in which both the handle 4 and the saddle 7 are stationary 4 types of operation modes including can be selected and pedaled. By changing each mode, various changes occur in the training, and you can enjoy training while changing your mood, or you can freely select the mode according to your personal preference. Furthermore, the amount of exercise according to the degree of fatigue and physical strength can be selected by switching these to increase or decrease the exercise load.

  Further, the release means 20 of the present embodiment engages with the handle wheel support cylinder 16 or the saddle support cylinder 18 and uses the support pin 23 engaged with the handle shaft 3 or the saddle shaft 6 inserted therethrough, This is preferable in that the lifting and lowering operations of the handle 4 and the saddle 7 can be reliably canceled by a simple operation of inserting the support pin 23.

  In this embodiment, as shown in FIG. 1, a box-shaped housing 67 having an opening at the bottom is fixed to the base frame portion 2 and covers the lifting means 13. Providing the housing 67 is preferable in that it can be prevented from being caught in a movable part such as a user's hem, and thus the safety is enhanced and the reliability of the drive part can be improved by being dust-proof. A bellows-like sleeve 68 is erected integrally with the rear portion of the housing 67 and is externally mounted on the saddle support cylinder 18.

  FIG. 12 illustrates another embodiment. Hereinafter, different contents will be described, and other than that, only the same reference numerals are given to the main components shown in the figure. The swing arm 15 of the present embodiment is provided with a pair of rollers 27 and 27 that are lined up and down at the front end thereof. The pair of rollers 27, 27 are each pivotally attached to both distal ends of a substantially U-shaped auxiliary tool 66 whose base is pivotally attached to the front end of the swing arm 15, and is attached to the lower surface of the cam wheel 14. It is in sliding contact. Therefore, since the pair of rollers 27 rolls smoothly on the front surface of the cam wheel 14 at two front and rear points, the saddle 7 is preferable in that it can move up and down more reliably and smoothly.

  The above description is an example of the embodiment of the present invention. Therefore, the technical scope of the present invention is not limited to this, and various modifications are included in addition to the above-described embodiment.

It is a perspective view which illustrates one embodiment of the present invention. It is the front view. It is the AA sectional view. It is the side view. It is the front view which expanded the principal part. It is a principal part expansion perspective view. It is a front view which illustrates an operation state. It is a front view which illustrates other operation states. The operations of the elevating means are shown, and (A) to (D) are operation explanatory views for explaining the state of the phase in which the cam wheel is rotated by 90 degrees. It is a principal part front view which illustrates the state which used the cancellation | release means. It is a front view which illustrates the use condition which bent the handle shaft. It is a front view which illustrates other embodiment. It is a front view of a prior art example. It is a schematic diagram of another conventional example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Body training device 2 Base frame part 3 Handle shaft 4 Handle 5 Handle part 6 Saddle shaft 7 Saddle 8 Saddle part 9 Pivot shaft 10 Pedal 11 Crank arm 12 Rotating means 13 Lifting means 14 Cam wheel 14A Circular eccentric cam 15 Oscillation Arm 16 Handle support cylinder 17 Slit 18 Saddle support cylinder 19 Projection piece 20 Release means 21 Handle shaft holding means 22 Saddle shaft holding means 23 Support pin 24 Roller 25 Spring 26 Pressing means 27 A pair of rollers 28 All-around cam surface 28A Far cam surface 28B Near cam surface 28D Opposite cam surface

Claims (11)

A base frame that can be supported vertically;
A handle portion provided with a handle on a handle shaft that can be raised and lowered at the front portion of the base frame portion;
A saddle part provided with a saddle at the upper end of a saddle shaft supported so as to be able to move up and down at the rear part of the base frame part, and a pivot shaft supported rotatably on the base frame part, a user sitting on the saddle Rotating means provided on both sides of the base frame portion with crank arms having a pedal for driving at the tip;
And a lifting means for raising and lowering the handle or saddle by driving the rotating means,
The elevating means comprises a cam wheel attached to the pivot shaft, and a swing arm having a middle portion pivotally supported by the base frame portion and swingable in a vertical plane,
The lower end portion of the handle shaft is in sliding contact with the upward surface of the cam wheel,
The swing arm has a front portion that is in sliding contact with the downward surface of the cam wheel, a rear portion that is in contact with a lower portion of the saddle shaft, and an upward swing of the rear portion of the swing arm to push up the saddle shaft,
In addition, the cam wheel is located on the far cam surface having the longest radial distance from the rotation center of the pivot shaft and on the substantially opposite side of the far cam surface, and the radial distance is smaller than the far cam surface. A body training device comprising an all-around cam surface having an opposite cam surface.   2. The body training device according to claim 1, wherein the opposite cam surface of the cam ring is a near cam surface having the smallest radial distance in the entire circumferential cam surface.   The body training device according to claim 1 or 2, wherein the cam wheel has an arc surface between the far cam surface and the opposite cam surface.   The cam ring has a circular cam surface on the entire circumference, and is attached to the pivot shaft by decentering the center of the circle. The body training device according to any one of claims 1 to 3, wherein the body training device is a circular eccentric cam located on the opposite side and having the near cam surface obtained by subtracting an eccentric distance from a radial distance. The base frame part is externally attached to a handle shaft that is pushed up by the cam wheel and moves up and down to support the handle shaft, and a saddle shaft that is pushed up and raised by the swing arm to support it. And a saddle support tube provided with a vertical slit extending in the axial direction of the saddle shaft,
The body training device according to claim 1, wherein the saddle shaft has a protruding piece that protrudes out of the saddle support cylinder from the vertical slit and engages with the swing arm.   The handle portion and the saddle portion are each formed with release means capable of releasing the linkage with the elevating means and stopping the vertical movement of the handle and saddle. 6. The pedal rowing motion can be selected by selecting a saddle vibration mode in which only the handle moves up and down, a handle vibration mode in which only the handle moves up and down, and a stationary mode in which both the handle and the saddle are stationary. Body training machine.   7. The body training device according to claim 6, wherein the release means comprises handle shaft holding means for holding the handle shaft in the handle support cylinder at a height at which the handle shaft cannot contact the cam wheel.   The body according to claim 6 or 7, wherein the release means comprises saddle shaft holding means for holding the saddle shaft in the saddle support cylinder at a height at which the swing arm cannot contact the projecting piece. Training device.   The release means engages with the handle support cylinder or the saddle support cylinder, and by supporting the handle shaft or the saddle axis inserted therethrough, the support shaft can maintain the handle shaft or the saddle axis at a constant height. It is formed using, The body training device in any one of Claims 6-8 characterized by the above-mentioned.   The lower end portion of the handle shaft is provided with a roller slidably contacting the cam wheel, and has pressing means having a spring that presses the roller toward the cam wheel. Body training device as described in.   The swing arm has a pair of rollers that face upward at the front portion thereof and are lined up and down, and is in sliding contact with the cam wheel via the pair of rollers. The listed body training device.

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