KR20070047685A - Body training machine - Google Patents

Abstract

The present invention provides a fitness device that can achieve a great exercise effect and at the same time can be compactly configured while feeling a proper stimulus even with a simple exercise of pedaling. The fitness device includes a base frame portion, a handle portion, a saddle portion, a rotating means, and a lifting means. The lifting means is composed of a cam wheel and a rocking arm. The lower end of the handle shaft is in sliding contact with the upper surface of the camwheel. The rocking arm is configured such that the front portion thereof is in sliding contact with the lower surface of the cam wheel, and the rear portion thereof is in contact with the lower portion of the saddle shaft, thereby pushing up the saddle shaft with the upward rotational movement of the rear portion of the rocking arm.

Exercise equipment, saddle, steering wheel, pedal, cam, crank arm, rocking arm, base frame

Description

Fitness equipment {BODY TRAINING MACHINE}

1 is a perspective view showing an embodiment according to the present invention.

2 is a front view of FIG. 1.

3 is a cross-sectional view along the line A-A of FIG. 2.

4 is a side view of FIG. 3.

5 is an enlarged front view of the main part.

6 is an enlarged perspective view of the main part;

7 is a front view showing an operating state.

8 is a front view showing another operating state.

9A to 9D are diagrams illustrating the operation of the lifting means, which is an operation explanatory diagram for explaining a state in which the cam wheel rotates by 90 degrees.

10 is a front view of a main part showing a state in which the stopping means is used.

11 is a front view showing a state where the handle shaft is bent and used.

12 is a front view showing another embodiment.

Fig. 13 is a front view of a main part showing still another embodiment.

FIG. 14 is a front view of a main part showing an operating state different from that of FIG. 13. FIG.

15 is a front view according to the prior art.

16 is a schematic diagram of another conventional technique.

The present invention relates to a fitness device that can enjoy a healthy cycle exercise as a stimulus according to the vertical movement is comfortably applied, and can obtain a good fitness effect.

As health awareness increases, many fitness devices have been proposed that can be used to easily exercise indoors to increase the level of physical activity. Among them, a bicycle type fitness device having a saddle, a pedal crank part, a handle part, and a load device capable of adjusting the weight of the pedal is commonly used on the installation floor, and the fitness is performed by a pedaling exercise. .

If this type of fitness equipment is used, it is easy to exercise indoors according to the strength of the individual. However, this exercise merely repeats the simple step of pedaling while maintaining the same exercise posture. Therefore, only a part of the training is limited and the effect of physical training is also limited. In addition, there is a problem that it is impossible to feel the same pleasant feelings when riding a bicycle outdoors, and many people do not achieve a long-term fitness plan.

Thus, as shown in Fig. 15, the U-shaped frame d supporting the handle a and the saddle b is axially attached to the pivot axis e, and the wheel h is provided. It works with the pedal crank f through the belt g and rotates. The crank lever mechanism j is also configured by connecting a link i between the wheel h and the frame d. Therefore, a fitness device has been proposed in which the handles a and the saddle b operate together with the rotation of the pedal crank f to rotate back and forth (see, for example, Japanese Patent Laid-Open No. 2002-210037).

In the exercise device, the body shakes back and forth with the pedaling motion, so that the body can feel the riding and can exercise while enjoying the shaking body change. However, the swinging motion of the upper body of the body, swinging back and forth, appears along with the rotational movement of the legs, so that an undesirable load tends to be applied to the lower back, the spine, and the like. At the same time, the feeling of movement of the legs may drop, and the effect of physical fitness may decrease.

In addition, as shown in Fig. 16, the roller n is provided to be in sliding contact with the upper surface of the eccentric cam m attached to the crankshaft k, and the saddle t is raised and lowered with the vertical movement of the roller n. A moving fitness improving device has been proposed (see, for example, Japanese Utility Model Publication No. 7-43344).

In the above-described fitness improving device, the saddle t continuously moves up and down with the rotation of the pedal, so that a change in body movement occurs vertically, and the user can feel some stimulus. However, in order to achieve the effects of fitness, it is necessary to continue the exercise for a limited time or longer. Therefore, the body immediately feels the change by the simple lifting movement of the saddle t, and there is a problem that the stimulus gradually fades. In addition, since the whole body weight is applied as a bending load repeated to the crankshaft k by the vertical movement of the saddle t, the bearing mechanism and the whole apparatus are enlarged, and handling becomes difficult.

SUMMARY OF THE INVENTION An object of the present invention is to provide a fitness device having a rocking arm, which is pivotally pivotable in a vertical plane by a cam wheel and a base frame in sliding contact with a lower end of a handle shaft, and has a simple exercise of stepping on a pedal. The present invention provides a fitness device that can be exercised while feeling an appropriate stimulus, and at the same time, a great exercise effect can be obtained and can be compactly configured.

In order to achieve the above object, according to the first aspect of the present invention,

A vertically supportable base frame portion;

A handle portion provided with a handle on a handle shaft capable of lifting and lowering from the front portion of the base frame portion;

A saddle provided with a saddle at an upper end of the saddle shaft supported to move up and down at a rear portion of the base frame part;

Rotating means provided on a pivot shaft rotatably supported by the base frame portion, the crank arm having a pedal driven by a user's foot sitting at both ends of the base frame portion;

Lifting means for lifting and lowering the handle or saddle by driving the rotating means, comprising a cam wheel attached to the pivot shaft and a pivot arm pivoted on the base frame portion so as to be able to swing in a vertical plane. Including lifting means,

The lower end of the handle shaft is in sliding contact with the upper surface of the cam wheel;

Since the front part of the rocking arm is in sliding contact with the lower surface of the cam wheel and the rear part of the rocking arm is in sliding contact with the lower part of the saddle shaft, the rocking arm is configured to push the saddle shaft up with the upward rotation of the rear part of the rocking arm. A fitness device is provided.

According to the second aspect of the present invention, the base frame portion is inserted into the outside of the handle shaft which is pushed up by the cam wheel to move up and down, and is inserted into the outside of the saddle shaft that is pushed up and down by the rocking arm and moved up and down by the rocking arm. And a saddle support tube for supporting the saddle shaft, wherein the saddle support tube includes a vertical slit extending in the axial direction of the saddle shaft, and the saddle shaft projects through the vertical slit to the outside of the saddle support tube to engage the rocking arm. It has a protruding piece.

According to the third aspect of the present invention, the handle portion and the saddle portion are each provided with stop means for stopping the connection between the lifting means and stopping the vertical movement of the handle and the saddle. It can be carried out by selecting one of the modes in which both the saddle moves up and down, the saddle rotation mode in which only the saddle is moved up, the handle rotation mode in which only the handle is moved up, and the stop mode in which both the handle and the saddle are stopped.

According to a fourth aspect of the invention, the stop means comprises handle shaft fixing means for fixing the handle shaft in the handle support tube at a height such that the handle shaft and the cam wheel are not in contact.

According to a fifth aspect of the invention, the stopping means comprises saddle shaft fixing means for fixing the saddle shaft in the saddle support tube at a height such that the rocking arm and the protruding piece are not in contact.

According to a sixth aspect of the invention, the stopping means is a support capable of holding the handle shaft or the saddle shaft at a constant height by engaging the handle support tube or the saddle support tube and simultaneously with the handle shaft or the saddle shaft inserted into the tube. It is formed using a pin.

According to the seventh aspect of the present invention, the lower end portion of the handle shaft includes a roller which is in sliding contact with the cam wheel, and has a pressing means with a spring for urging the roller toward the cam wheel.

According to the eighth aspect of the present invention, the rocking arm has a pair of rollers disposed forward and backward in the front portion of the rocking arm and is in sliding contact with the cam wheel through the pair of rollers.

According to the ninth aspect of the present invention, the cam wheel has a longest cam surface having the longest radial distance from the center of rotation of the pivot axis, and an opposite side disposed at approximately opposite sides of the longest cam surface with a shorter radial distance than the longest cam surface. A full circumferential cam surface with a cam surface is provided.

According to the tenth aspect of the present invention, the camwheel is configured such that the opposite cam surface is composed of the shortest cam surface with the shortest radial distance from the entire circumferential cam surface.

According to the eleventh aspect of the present invention, the cam wheel is configured such that the longest cam surface and the shortest cam surface form a circular arc surface.

According to a twelfth aspect of the present invention, a cam wheel is composed of a circular eccentric cam whose entire circumferential cam surface is formed in a circle and is eccentrically attached to a pivot axis, wherein the circular eccentric cam rotates the pivot axis. The length from the center of rotation of the pivot axis minus the eccentricity from the circle's radius, while the distance from the center is located on the side opposite the longest cam surface and the longest cam surface equal to the length obtained by adding the eccentric amount to the radius of the circle. Equipped with the same shortest cam surface as

According to a thirteenth aspect of the present invention, the cam wheel is provided on both sides of the pivot axis about the pivot axis, the longest cam surface having the longest radial distance from the center of rotation of the pivot axis, and both sides of the pivot axis about the pivot axis And a full window cam surface having an inner cam surface with a radial distance shorter than the longest cam surface.

According to a fourteenth aspect of the present invention, the camwheel has an inner cam surface composed of the shortest cam surface whose radial distance is the shortest in the entire circumferential cam surface.

According to a fifteenth aspect of the present invention, the cam wheel is configured such that the longest cam surface and the shortest cam surface form a circular arc curved surface.

According to the sixteenth aspect of the present invention, the cam wheel is configured such that, on the entire circumferential cam surface, both longest cam surfaces are symmetrically disposed with respect to the center of the pivot axis, and both shortest cam surfaces are symmetrically disposed with respect to the center of the pivot axis. The line connecting the longest cam surface through the center of the pivot axis forms a right angle with the line connecting the shortest cam surface through the center of the pivot axis.

According to the seventeenth aspect of the present invention, the camwheel is composed of an elliptical camwheel having a long axis and a short axis symmetrical.

In the present invention according to the first aspect, the handle or saddle is driven and lifted by the user sitting on the saddle by pedaling for fitness, so that the user's posture changes repeatedly in a constant cycle. As a result, the posture of the user is changed only by indoor exercise, so that a force is applied to various muscles and a subtlely changing force is repeatedly applied to the same muscle. Thus, a well-balanced fitness effect can be obtained. At the same time, a light rhythm is generated in the pedaling exercise, a feeling of heightened feeling can be felt in the indoor exercise, which can be monotonous, and the body can be enjoyed for a long time without fatigue. In addition, since the steering wheel or the saddle moves up and down using the driving force generated by the stepping on the pedal, the rotational force of the pedal is increased when the upward movement increases the amount of exercise, thereby improving the exercise effect. In addition, since the rotational force repeatedly increases and decreases in accordance with the upward and downward movements of the handle or the saddle, the effect of increasing the muscular strength is increased because the increasing and decreasing force in the swinging form is applied to the muscles to effectively stimulate the muscles. .

As in the present invention according to the second aspect, when the handle shaft and the saddle shaft moving vertically to the handle support tube and the saddle support tube are inserted and supported, both shafts can move up and down smoothly. Therefore, the pedal can be rotated smoothly, and it is possible to prevent the excessive force is applied to the knee or ankle.

As in the present invention according to the third aspect, in the case where the stop means for stopping the upward and downward movement of the handle and the saddle are formed, respectively, the handle and the saddle are both lifting mode, saddle only lifting mode saddle rotation mode For example, it is possible to perform pedal pedal movement by selecting one of the steering wheel rotation mode in which only the handle is lifted and moved, and the stop mode in which both the steering wheel and the saddle are stopped. Therefore, it is possible to give various changes in the exercise, and by using the mode appropriately, it is possible to exercise the body while changing the atmosphere appropriately, and various modes can be freely selected according to the personal preference. In addition, the exercise load can be increased or decreased according to the mode selection, and the amount of exercise can be selected according to the physical strength or the fatigue degree.

As in the present invention according to the fourth aspect, in the case where the stopping means is constituted by the handle shaft fixing means for fixing the handle shaft to a height at which the handle shaft and the cam wheel are not in contact with each other, it is possible to reliably stop the lifting movement of the handle with a simple configuration. It becomes possible to do it.

As in the present invention according to the fifth aspect, when the stopping means is constituted by saddle shaft fixing means for fixing the saddle shaft to a height at which the protruding piece and the rocking arm are not in contact with each other, the saddle raising and lowering movement of the saddle is surely performed. It becomes possible to stop.

As in the invention according to the sixth aspect, when the stopping means is constructed using a support pin which continuously passes through the handle support tube and the handle shaft or saddle support tube inserted therein and the saddle shaft inserted therein, the support pin is inserted. It is possible to reliably stop the lifting and lowering of the steering wheel and the anzing by simple operation.

As with the present invention according to the seventh aspect, in the case where the roller shaft in sliding contact with the cam wheel and the pressing means for pressing the roller toward the cam wheel are provided at the lower end of the handle shaft, the roller does not spring up, and the roller does not bounce off the surface of the cam wheel. Since it can be rolled along, the handle shaft can be moved up and down smoothly without rattling.

As in the present invention according to the eighth aspect, when a pair of rollers are provided at the front portion of the rocking arm, which are in sliding contact with the cam wheel and disposed forward and backward, the pair of rollers are smoothly along the surface of the cam wheel. You can roll. Thus, the saddle can move up and down smoothly.

As in the invention according to the ninth aspect, the cam wheel of the elevating means is provided with a full circumferential cam surface having the longest cam surface with the longest radial distance and the opposing cam surface with a shorter radial distance than the longest cam surface. The lower end of the handle shaft is moved up and down while being in sliding contact with the upper surface of the cam wheel, and the swinging arm whose center part is pivoted on the base frame part and the front part is in sliding contact with the lower surface of the cam wheel is moved downwardly. As a result, the saddle shaft is pushed down. As a result, when the pedal rotates, the handle shaft and the saddle shaft are moved up and down alternately at the inverted timing. Because the vertical movement of the saddle and the vertical movement of the steering wheel are reversed, the user needs to maintain the balance using the whole body to maintain the exercise posture at a timing not experienced in everyday life. You can get it. In addition, it is possible to obtain a refreshing exercise feeling that can not be experienced in general, so that you can enjoy a pleasant operation.

As in the present invention according to the tenth aspect, when the opposite cam surface is composed of the shortest cam surface with the shortest radial distance, it becomes possible to increase the lifting stroke of the handle or the saddle. Therefore, the exercise effect can be maximized.

As in the present invention according to the eleventh aspect, when the longest cam surface and the opposing cam surface form a circular arc surface, the lower end of the saddle shaft or the front part of the rocking arm which is in sliding contact with the entire circumferential cam surface can move smoothly. have. Therefore, it becomes possible to exercise the body without excessive burden in the exercise of pedaling.

As with the invention according to the twelfth aspect, a camwheel is constructed using a circular eccentric cam having a longest cam surface with a length plus a radius plus an eccentric amount and a shortest cam surface with a length minus an eccentricity from a radius If so, the configuration is simplified. Thus, the handle or saddle moves up and down smoothly, not only for easy maintenance but also for low cost.

As with the invention according to the thirteenth aspect, the cam wheel has a longest cam surface and a radial distance provided on both sides of the pivot axis with the pivot axis centered and having the longest radial distance from the center of rotation of the pivot axis than the longest cam surface. In the case where the entire winch cam surface having a short inner cam surface is provided, the handle shaft whose lower end is in sliding contact with the upper surface of the cam wheel, and the front part of the rocking arm are in sliding contact with the lower surface of the cam shaft, and thus the rear portion of the rocking arm Ascending movement is repeated so that vertical movement occurs simultaneously by the saddle shaft which is pushed down simultaneously with the upward rotation movement. As described above, since the timing of the vertical movement of the saddle and the vertical movement of the handle coincide, it is possible to enjoy physical training according to the vertical movement tempo while feeling the rhythm of the whole body. In addition, since the movement of the saddle and the handle is the same, elderly people with poor physical ability such as body reflexes can be used with confidence.

As with the present invention according to the fourteenth aspect, when the inner cam surface is composed of the shortest cam surface with the shortest radius, it is possible to form a large lifting stroke of the handle or saddle. Therefore, the effect of physical fitness can be maximized.

As in the present invention according to the fifteenth aspect, when the longest cam surface and the shortest cam surface form a circular arc surface, the lower end of the saddle shaft or the front part of the rocking arm can move smoothly. Therefore, since the pedal can be lightly pressed, it is possible to enjoy physical fitness.

As in the present invention according to the sixteenth aspect, in the case where the line connecting the longest cam surface through the center of the pivot axis on the entire circumferential cam surface forms a right angle with the line connecting the shortest cam surface through the center of the pivot axis, When the pedal is pressed, the saddle and the handle move up and down together in a constant cycle. Thus, the vertical movement creates a comfortable stimulus and can be exercised comfortably.

As in the present invention according to the seventeenth aspect, when the camwheel is composed of an elliptical camwheel having a long axis and a short axis symmetrical, the handle axis and the saddle axis in sliding contact with the entire circumferential cam surface repeat the smooth and regular lifting movement. Thus, a comfortable stimulus can be obtained.

(Example)

The method of implementing this invention is demonstrated with an Example. 1 and 2, the fitness 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, Rotating means 12 for performing a pedal movement and lifting means 13 for moving the handle 4 or saddle 7 up and down are provided. In addition, the present embodiment has a stopping means 20 for stopping the operation of the elevating means 13 to stop the vertical movement of the handle or saddle.

The base frame part 2 forms the base part of an apparatus, and is comprised including the support part 2A provided in the installation surface, the upright part 2B which stood up from the support part 2A, etc. In the present embodiment, as shown in Figs. 2 and 3, the support portion 2A extends laterally from the main shaft portion 31 extending forward and backward from the center, the front end portion and the rear end portion of the main shaft portion 31. ) 32 and the rear arm 33 is formed in a substantially I-shape. In addition, the main shaft portion 31 is configured using a flat steel pipe, and the front arm portion 32 and the rear arm portion 33 are constructed using a circular steel pipe to weld to the front end and the rear end of the main shaft portion 31. do. In addition, a cap 34 for preventing slippage is fitted to the ends of the front arm 32 and the rear arm 33. In this case, the front in the present specification means the side facing the user, that is, the side on which the handle 4 is disposed.

The upright part 2B is the crank support part 35 standing upright near the front part of the main shaft part 31, the wheel support part 36 provided in the state standing upright in alignment with the front of the main shaft part 31, and a main shaft. The handle is placed upright from the part 31, but is placed on the saddle support tube 18, which is inclined slightly backward toward the rear of the crank support part 35, and is standing upright, slightly inclined forward. It is illustrated in the configuration including the support tube 16 and the arm support 40 standing upright between the saddle support tube 18 and the crank support 35. In this state, the handle support tube 16 is firmly attached to the front end of the downward tube 37 extending forward from the middle of the saddle support tube 18. In this state, the auxiliary support member 69 is connected between the vicinity of the tip of the downward tube 37 and the upper end of the crank support 35.

The saddle support tube 18 is formed in the shape of a long rectangular tube in the longitudinal direction and is attached, for example, in a state inclined backward by about 10 to 25 degrees (15 degrees in this embodiment). In addition, vertically long slits 17 and 17 are formed on both sides of the lower part of the saddle support tube 18, and support holes 38 passing through the left and right are formed through the upper part of the saddle support tube 18.

The handle support tube 16 is formed in a longitudinally long longitudinal tube shape in the same manner as the saddle support tube 18, and is, for example, inclined forward by about 5 to 20 degrees (10 degrees in this embodiment). Is attached.

As shown in FIGS. 2 and 4, the handle portion 5 comprises a handle shaft 3 elongated vertically and a handle 4 extending left and right at the upper end of the handle shaft 3, according to the present invention. The handle 4 is curved upwardly so that both arms can be stably supported. In addition, the roller 24A is attached to the lower end of the handle shaft 3 which concerns on this invention in the axial direction.

As shown in FIG. 2, the handle shaft 3 according to the present invention includes a handle upper shaft 3U having a groove-type connecting device 61 firmly attached to a lower end thereof, and a horizontal shaft 62 for pivoting the connecting device 61. It is comprised by the handle lower shaft 3D which contains, and the fixing bolt 63 protruding forward. The handle upper shaft 3U and the handle lower shaft 3D are connected to be bent around the horizontal axis 62. The notch 64 is formed at the front lower end of the connecting device 61. By tightening the fastening device 65 having a screw hole with the fixing bolt 63 inserted into the notch 64, the connecting device 61 is fixed to the upper end of the handle lower shaft 3D. Therefore, the handle lower shaft 3D and the handle upper shaft 3U are continuously joined to form the handle shaft 3. In addition, the handle shaft 3 is supported by the base frame portion 2 so as to slide up and down by inserting the handle lower shaft 3D into the handle support tube 16. In addition, when the mechanism is not used or moved, it is also possible to detach the fastening device 65 so as to tilt the upper part of the handle portion 5 backward as shown in FIG. Therefore, this configuration is preferable in that the adjustment and movement can be simplified. In this configuration, the front fixing hole 42F passing through the left and right penetrates at a position close to the upper side of the handle lower shaft 3D.

As shown in Figs. 2 and 4, the saddle 8 is constituted by a saddle shaft 6 vertically long and a saddle 7 attached to the upper end of the saddle shaft 6. The saddle shaft 6 according to the present embodiment includes a saddle upper shaft 6U and a saddle lower shaft 6D having a tube shape larger in diameter than the saddle upper shaft 6U. In addition, this structure is formed so that the saddle upper shaft 6U may be inserted in the upper part of the saddle lower shaft 6D, and is fixed using the fastening bolt apparatus 43. FIG. When the tightening bolt device 43 is detached, it is possible to expand and contract the length of the saddle shaft 6 by sliding the lower portion of the saddle upper shaft 6U inside the saddle lower shaft 6D. By fixing again by the fastening bolt device 43, it is possible to adjust the saddle height to suit the body structure.

According to this embodiment, the rear fixing hole 42B passing through the left and right penetrates the upper part of the saddle lower shaft 6D. In addition, as shown in Figs. 2 and 6, the projection 19 is composed of a mandrel 19A extending left and right and a support wheel 19B pivoting around the mandrel 19A. It is formed at the bottom. In addition, the saddle shaft 6 is able to slide up and down by inserting the saddle lower shaft 6D into the saddle support tube 18 with the protruding piece 19 protruding outward through the slit 17. It is supported by the base frame part 2.

3 and 5, in this embodiment, 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, it further comprises an inertial means 45 for applying the rotational force to the pedal rotational movement. The pivot shaft 9 is supported by the crank support part 35 through a bearing shaft bush (not shown in the figure), and extends in opposite directions perpendicular to the axial direction of the pivot shaft 9, respectively. 11 is attached to both sides of the crank support part 35. The pedal 10 is attached to the distal end of the crank arm 11. As with a general bicycle, the present configuration is configured such that a user sitting on the saddle 7 rolls his foot to move the pedal 10 to perform a cycle.

 The inertial means 45 has a large diameter pulley 46 fixed to the pivot shaft 9 and integrally rotated with the crank arm 11, and a flywheel which can be rotated by being axially attached to the wheel support 36. 47), a small diameter pulley 48 that rotates integrally with the flywheel 47, and a drive belt 49 that connects between the large diameter pulley 46 and the small diameter pulley 48. In addition, the rotation of the pedal 10 is transmitted to the flywheel 47 through the drive belt 49 while the rotation ratio is increased. The rotational force based on the rotation of the flywheel 47 is actually transmitted to the pedal 10 with a feeling similar to the inertia when riding a bicycle. As a result, an effective exercise effect can be obtained.

In the flywheel 47, at least the circumferential surface is formed of a ferromagnetic material such as iron, martensitic or ferritic stainless steel, nickel, cobalt or the like. The load means 53 is also provided by attaching a magnetic belt 50 formed such that the magnetic pieces are arranged in a band around the circumferential surface of the flywheel 47. Further, a constant braking force is applied to the rotation of the flywheel 47 based on the operation of the magnetic force of the load means 53, so that a constant load is applied to the rotational movement of the pedal 10. In this configuration, it is possible to adjust the degree of pulling the wire 51 by pulling one end of the magnetic belt 50 by adjusting the handle 52 (see FIG. 2) attached to the downward tube 37. By adjusting the distance between the magnetic belt 50 and the flywheel 47 by such adjustment, it is possible to increase or decrease the magnetic force strength to increase or decrease the load applied to the pedal 10.

The elevating means 13 includes a cam wheel 14 and a rocking arm 15 attached to the pivot shaft 9 so as to rotate by stepping on a pedal. In addition, the handle 4 and the saddle 7 are moved up and down using the rotational driving force of the rotating means 12.

The entire circumferential cam surface 28 with the pivot axis 9 in the center is formed on the outer circumference of the camwheel 14. As in FIGS. 7 and 8, the entire circumferential cam surface 28 has a radius greater than the longest cam surface 28A with the longest radial distance from the center of rotation of the pivot axis 9, and the longest cam surface 28A. It includes an opposing-side cam surface 28D that is short in directional distance and disposed on approximately the opposite side of the longest cam surface 28A with the pivot axis 9 interposed therebetween. In this configuration, the longest cam surface 28A means an area that encompasses a range between 30 degrees in the circumferential direction around the pivot axis 9 from the position with the longest radial distance. In addition, the substantially opposite side means an area including a range between 30 degrees in the circumferential direction around the pivot axis 9 from the opposite direction with the pivot axis 9 interposed therebetween.

When the pedal 10 is operated by the foot to rotate the crank arm 11, the roller 24A at the lower end of the handle shaft 3 slides on the upper surface of the cam wheel 14 which rotates integrally with the crank arm 11. Contact. Thus, the handle shaft 3 is pushed up when it is in a sliding contact with the longest cam surface 28A of the entire circumferential cam surface 28. The handle shaft 3 moves downward when it is brought into sliding contact with the opposing cam surface 28D. This movement is repeated as the cam wheel 14 rotates, and the handle shaft 3 repeats the lifting movement.

As shown in Figure 5, the rocking arm 15 is configured to extend back and forth. In addition, the substantially central portion of the rocking arm 15 is attached to the upper end of the arm support portion 40 in the axial direction, and the rocking arm 15 is supported in a balanced state so that both arms can swing freely on a vertical plane. The roller 24B is attached to the front end of the rocking arm 15 in the axial direction. The roller 24B is in sliding contact with the underside of the entire circumferential cam surface 28 of the camwheel 14. On the other hand, as shown in Figure 6, the rear end of the rocking arm 15 is divided into C-shape toward both sides of the saddle support tube 18, the support wheel of the protruding piece 19 formed in the lower portion of the saddle shaft 6 ( Extends below 19B).

In addition, the cam wheel 14 is rotated by a user sitting on the saddle 7 by stepping on the pedal 10 by foot. As in FIGS. 7 and 9A, when the longest cam surface 28A is positioned on the lower surface of the camwheel 14, the roller 24B of the rocking arm 15 in sliding contact with the longest cam surface 28A is lowered. Pushed to. Also, on the contrary, the rising rear end pushes up the saddle shaft 6 upward. At the same time, since the handle shaft 3 in sliding contact with the opposing cam surface 28D on the upper surface is in sliding contact with the entire circumferential cam surface 28 at a low position, the handle shaft 3 is supported in the lowered state. . Then, when the cam wheel 14 is rotated by 90 degrees, the saddle shaft 6 moves downward to return to the normal height as shown in Fig. 9B, and the handle shaft 3 is raised to the middle height, on the contrary. In addition, when the cam wheel 14 rotates by 90 degrees, the opposite cam surface 28D is located on the lower surface of the cam wheel 14 as shown in Figs. 8 and 9C. Thus, the roller 24B of the sliding contact rocking arm moves upward, the rear end moves downward, and the saddle shaft 6 changes to a low position. At the same time, the longest cam surface 28A rotating on the upper surface lifts the handle shaft 3 upward. Then, when the camwheel 14 rotates 90 degrees, the saddle shaft 6 again moves upward and returns to its normal height as in FIG. 9D. In contrast, the handle shaft 3 moves downward to the middle height.

As long as the cam wheel 14 is rotated in accordance with the pedaling motion, the pattern described above with respect to the lifting motion of the saddle shaft 6 and the handle shaft 3 continues. Thus, the user's posture continues to change with a constant cycle. Therefore, even during indoor exercise, which may be monotonous, loads are applied to various muscles at various positions according to posture changes, and subtle load changes are repeatedly applied to the same muscles. Therefore, a well-balanced exercise effect can be obtained. In addition, a light rhythm is generated by continuous vertical movement in a constant cycle when pedaling. In addition, even during indoor exercise, the emotion is heightened, and it is possible to enjoy the exercise for a long time without boredom.

  In addition, as described above, the handle shaft 3 and the saddle shaft 6 are moved up and down at alternately inverted timings. Therefore, the user who exercises in a state where the vertical movement of the sitting saddle 7 and the vertical movement of the handle 4 are reversed in reverse is performed by the user who maintains the whole body in order to maintain the exercise posture in the above-described state which has not been experienced in everyday life. It is necessary to maintain balance. As a result, since the exercise effect is remarkably improved, it is possible to obtain an exercise feeling which has not been experienced in general, and can exercise while enjoying a refreshing feeling.

In addition, since the handle 4 or the saddle 7 moves up and down by the driving force generated by stepping on the pedal 10 by foot, the rotational load of the pedal 10 increases when moving upwards, thus increasing the amount of exercise. The exercise effect is further improved. In addition, since the exercise load increases and decreases periodically in accordance with the vertical movement of the handle 4 or the saddle 7, it is possible to effectively stimulate the muscles and obtain a great effect of increasing the muscle force.

As shown in FIG. 7, with respect to the camwheel 14 according to the invention, the opposite cam surface 28D in the entire circumferential cam surface 28 is the shortest in the region with the shortest radial distance from the pivot axis 9. It is formed by the cam surface 28B. Thus, the lifting stroke of the saddle or handle 4 caused by the difference between the radial distance of the longest cam surface 28A and the radial distance of the shortest cam surface 28D is configured to be increased. As a result, it is possible to maximize the stimulus applied to the user, thereby obtaining a large exercise effect.

In this embodiment, the entire circumferential cam surface 28 is formed such that the longest cam surface 28A and the opposing cam surface 28D are formed into a smooth, continuous arc surface. As a result, the front portion of the rocking arm 15 or the lower end portion of the saddle shaft 6 in sliding contact with the surface of the entire circumferential cam surface 28 can move smoothly along the arc surface. Therefore, it is possible to exercise smoothly without excessive burden during pedal exercise. In addition, the vertical movement of the handle 4 or the saddle 7 forms a smooth and continuous movement. As a result, it becomes possible to apply a stable stimulus to the user.

Further, the cam wheel 14 according to the present embodiment is a so-called circular eccentric cam 14A in which the entire circumferential cam surface 28 is formed in a circle and supported by the pivot axis 9 at a position eccentric from the center of the circle. Consists of. Thus, the longest cam surface 28A is formed such that the distance from the center of rotation of the pivot axis 9 is equal to the length obtained by adding the eccentric amount with the radius of the circle. On the other hand, the shortest cam surface 28B is located on the side opposite to the longest cam surface 28A. Further, the distance from the center of rotation of the pivot shaft 9 is formed to be equal to the length obtained by subtracting the amount eccentrically from the radius of the circle. By using the circular eccentric cam 14A described above, the structure of the cam mechanism is simplified. Therefore, since the handle 4 or the saddle 7 moves up and down smoothly, it is preferable at the point of improving usability, cost reduction, and simple maintenance.

The saddle shaft 6 and the handle shaft 3 in which the vertical movement is repeated little by little by the lifting means 13 having the cam wheels 14 are inserted into the handle support tube 16 and the saddle support tube 18 as described above. Is fixed. Thus, the friction is reduced to enable smooth vertical movement. As a result, the rotational movement of the pedal 10 becomes smooth, and unreasonable loads are not applied to the user's knees, feet, and the like.

In this embodiment, as shown in FIG. 5, the spring 25 is connected to the rocking arm 15 at the lower portion of the handle shaft 3 and presses the roller 24A at the lower end of the handle shaft 3. Pressing means 26 are provided for pressing the roller 24B toward the cam wheel 14 at the front end of the rocking arm 15. By the pressing means 26, the handle shaft 3 does not bounce up even if the rotational speed of the cam wheel 14 is increased. Thus, the roller 24A can be rolled smoothly along the surface of the cam wheel 14. As a result, the handle shaft 3 can move up and down smoothly without rattling. Moreover, the roller 24B of the rocking arm 15 can also be rolled smoothly along the lower surface of the camwheel 14.

As shown in FIG. 10, the stopping means 20 consists of a handle shaft fixing means 21 provided on the handle portion 5 and a saddle shaft fixing means 22 provided on the saddle portion 8. In addition, the vertical movements of the handle 4 and the saddle 7 are respectively selected to stop separately.

As shown in FIG. 2, the handle shaft fixing means 21 is formed of a front support pin 23F that continuously passes through the front fixing hole 42F and the front fixing hole 42F of the handle shaft. In the case of lifting the handle shaft 3 slightly, the front fixing hole 42F hidden in the inner surface of the handle support tube 16 moves upwardly higher than the upper end of the handle support tube 16 to be exposed to the outside. In this state, when the front support pin 23F is inserted into the front fixing hole 42F and the lifting of the handle shaft 3 is stopped, the front support pin 23F fixed to the front fixing hole 42F is handled. Engages with the top end of the support tube 16 and is supported at its height (FIG. 10). As a result, the roller 24A at the lower end of the handle shaft 3 is moved up away from the circumferential surface of the rotating camwheel 14. Therefore, the lifting of the handle 4 by the rotating cam wheel 14 does not occur by pressing the pedal, and the vertical movement of the handle 4 is stopped. The handle shaft fixing means 21 has a simple structure to stop the lifting movement of the handle (4). In this case, as shown in FIG. 1, when the front support pin 23F is not used, it temporarily hangs on the clip-shaped holder 55 in front of the handle shaft 3.

2, the saddle shaft fixing means 22 saddles with the support hole 38 formed in the saddle support tube 18, the rear fixing hole 42B of the saddle shaft 6, and the chain 56. As shown in FIG. And a rear support pin 23B attached to the support tube 18. As shown in Fig. 10, when the saddle shaft 6 is slightly lifted, the support holes 38 and the rear fixing holes 42B coincide with each other in height, and the rear support pins 23B support the support holes 38. ) And the rear fixing hole 42B are inserted continuously. The saddle shaft 6 is fixed by the rear support pin 23B to be fixed at the height as described above.

Therefore, the protruding piece 19 provided at the lower end is arrange | positioned so that it may move upward away from the rear end part of the rocking arm 15 which is connected and rotated to the rotating camwheel 14. As a result, the lifting and lowering of the saddle 7 by the rocking arm 15 rotated by pressing the pedal does not occur, and the vertical movement of the saddle 7 does not occur. The saddle shaft fixing means 22 constituted in the above-described manner reliably stops the lifting movement of the saddle 7 in a simple structure.

As described above, the stop means 20 is provided with a handle shaft fixing means 21 and a saddle shaft fixing means 22 which can stop the vertical movement of the handle 4 and the saddle 7 separately, The stop of the vertical motion can be selected independently.

Therefore, the pedal stepping movement includes a mode in which both the handle 4 and the saddle 7 move up and down, a saddle rotation mode in which only the saddle 7 moves up and down, a handle rotation mode in which only the handle 4 moves up and down, and a handle. This can be done by selecting one of the stop modes in which both (4) and saddle 7 are stationary. Various changes are given during physical training according to each mode change, so you can enjoy physical training with changing mood and freely choose a mode according to your personal preference. In addition, the amount of exercise can be selected according to physical strength and fatigue by increasing or decreasing the exercise intensity according to the selection.

In addition, the stop means 20 is engaged with the handle support tube 16 or the saddle support tube 18 and at the same time the support pin (3) is engaged with the handle shaft (3) or the saddle shaft (6) inserted into the tube ( By using 23), a simple configuration can be used to block the movement due to the rotation of the camshaft 14. Therefore, it is possible to reliably stop the lifting motion of the handle 4 and the saddle 7 by a simple operation achieved only by inserting the support pin 23.

In this embodiment, as shown in Figure 1, the box-shaped housing 67 having an open lower surface is fixed to the base frame portion 2 to cover the lifting means (13). By covering the housing 67, the user's clothes and the like can be prevented from being caught in the operating portion, thereby improving safety. Moreover, the reliability of the drive part by dustproofing can be improved. The corrugated sleeve 68 is provided integrally formed at the rear of the housing 67 and rises to be inserted into the outside of the saddle support tube 18.

12 shows another embodiment. The different contents will be described below, but other details will be omitted by inputting the same reference numerals for the main components shown in the drawings. The rocking arm 15 according to the present embodiment is provided with a pair of rollers 27 and 27 arranged back and forth at its front end. Further, the pair of rollers 27 and 27 are axially attached to both front ends of the substantially U-shaped auxiliary device 66 pivoted at the front end of the rocking arm 15 at the base, respectively. It is in sliding contact with the lower surface of the cam wheel 14. Thus, the pair of rollers 27 can smoothly roll over the surface of the camwheel 14 at two front and rear points. Therefore, the saddle 7 can move up and down more reliably and smoothly.

13 and 14 show another embodiment. The cam wheel 14 according to the present invention has a pair of longest cam surfaces 28A arranged on both sides of the pivot axis 9 with the pivot axis 9 as the center, and the pivot axis 9 in the same manner. A full winch cam surface 28 is provided having a pair of inner cam surfaces 28E disposed on both sides of the pivot shaft 9. For the longest cam surface 28A, the radial distance from the center of the pivot axis 9 is the longest. The inner cam surface 28E is formed so that the radial distance is shorter than the longest cam surface 28A.

As in the case of the above-described embodiment, the lower end of the handle shaft 3 is in sliding contact with the upper surface of the cam wheel 14. In addition, the front part of the rocking arm 15 which pushes up the saddle shaft 6 from the rear part is in sliding contact with the lower surface of the cam wheel 14. Thus, as in FIG. 13, when the inner cam surface 28E of the cam wheel 14 is located in the vertical direction of the pivot shaft 9, both the handle shaft 3 and the saddle shaft 6 move downward. Further, as shown in FIG. 14, when the cam wheel 14 is rotated so that the longest cam surface 28A is located in the vertical direction of the pivot shaft 9, the handle shaft 3 is pushed straight by the longest cam surface 28A. Going up Moreover, since the front part of the rocking arm 15 is pushed down, the saddle shaft 6 is simultaneously pushed up by the rear part of the rocking arm 15 which rises. When the camwheel 14 is rotated as described above, the saddle and the handle continue vertical movement at the same timing. Therefore, the user can enjoy physical fitness while feeling the rhythm of the whole body. In addition, since the saddle and the handle are moved up and down according to the same operation, elderly people with poor physical ability, such as body reflexes, can be used with confidence.

In the camwheel 14 according to the invention, the inner cam surface 28E is located at the shortest cam surface 28E whose radial distance from the pivot axis 9 is in the shortest range of the entire circumferential cam surface 28. Is formed by. Therefore, the handle shaft 3 and the saddle shaft 6 can be moved up and down as large as possible. Therefore, it is possible to effectively stimulate the user, and the effect of endurance force can be improved by increasing the exercise load.

In this embodiment, the entire circumferential cam surface 28 is formed by forming a smooth and continuous circular arc curved surface of the longest cam surface 28A and the shortest cam surface 28B. Thus, the lower end of the saddle shaft 6 or the front part of the rocking arm 15 which is in sliding contact with the surface of the entire circumferential cam surface 28 can smoothly move as it is in sliding contact with the circular arc curved surface. Therefore, pleasant physical fitness is possible by pedaling lightly. In addition, since the saddle 7 and the handle 4 move up and down smoothly and continuously, it becomes possible to apply a comfortable stimulus to the user.

In the cam wheel 14 according to the present embodiment, the pair of longest cam surfaces 28A and the pair of shortest cam surfaces 28B are each disposed symmetrically with respect to the center of the pivot axis 9. Moreover, the vertical line which connects the longest cam surface 28A through the center of the pivot axis 9 is arrange | positioned so that the perpendicular | vertical line which connects the shortest cam surface 28B and the center of the pivot axis 9 may be orthogonally crossed in the same way. . In other words, the longest cam surface 28A and the shortest cam surface 28B are alternately arranged at regular intervals of 90 degrees in the circumferential direction about the pivot axis 9. As a result, the saddle 7 and the handle 4 are moved up and down in a constant cycle by the rotation of the pedal 10, so that the regular vertical movement creates a comfortable stimulus and enables comfortable exercise.

In the cam wheel 14 according to the present embodiment, a vertical line passing through the center of the pivot axis 9 to connect the longest cam surface 28A to each other is set as the long axis, and a vertical line connecting the shortest cam surface 28B to each other is provided. An elliptical camwheel 14B set to a single axis is used. Therefore, the saddle shaft 6 and the handle shaft 3 which are in sliding contact with the entire circumferential cam surface 28 repeat smooth and regular vertical movement, thereby obtaining a comfortable stimulus.

In this case, the above description is merely an example for practicing the present invention. Therefore, the technical scope of the present invention is not limited thereto, and various modified embodiments are possible, including the above-described embodiments.

According to the present invention, there is provided a fitness device that can achieve a great exercise effect at the same time and can be compactly configured while feeling a proper stimulus even with a simple exercise of pedaling.

Claims (17)

For exercise equipment: A vertically supportable base frame portion; A handle portion provided with a handle on a handle shaft that is capable of lifting and lowering at a front portion of the base frame portion; A saddle provided with a saddle at an upper end of the saddle shaft supported to move up and down at the rear of the base frame part; Rotating means having a pivot shaft rotatably supported on the base frame portion, the crank arm having a pedal driven by a foot of a user sitting on the saddle at both ends of the base frame portion; An elevating means for elevating and moving the handle or the saddle by driving the rotating means, the cam pivot being attached to the pivot shaft and rotating along with the pivot shaft and pivoting at a central portion thereof so as to be able to swing in a vertical plane. Including lifting means composed of rocking rock, A lower end of the handle shaft is in sliding contact with an upper surface of the cam wheel; The front portion of the rocking arm is in sliding contact with the lower surface of the cam wheel and the rear portion of the rocking arm is in sliding contact with the lower portion of the saddle shaft, so that the saddle shaft is pushed up together with the upward rotation of the rear portion of the rocking arm. Fitness device characterized in that the rocking arm is configured. The method of claim 1, The base frame portion, A handle support tube inserted to the outside of the handle shaft that is pushed up and moved up and down by the cam wheel to support the handle shaft, and And a saddle support tube inserted into the saddle shaft which is pushed up by the rocking arm and moved up and down to support the saddle shaft. The saddle support tube is provided with a vertical slit extending in the axial direction of the saddle axis, The saddle shaft has a protruding piece that projects through the vertical slit to the outside of the saddle support tube and engages with the rocking arm. The method of claim 1, In the handle portion and the saddle portion, stop means for stopping the vertical movement of the handle and the saddle by stopping the connection with the lifting means are formed, respectively, The pedaling movement can be selected from among the modes in which both the handle and the saddle move up and down, the saddle rotation mode in which only the saddle is moved up and down, the handle rotation mode in which only the handle is lifted up, and the stop mode in which both the handle and the saddle are stopped. Fitness equipment, characterized in that can be performed. The method of claim 3, wherein And said stopping means comprises a handle shaft fixing means for fixing the handle shaft in the handle support tube at a height at which the handle shaft and the cam wheel are not in contact with each other. The method of claim 3, wherein And said stopping means comprises saddle shaft fixing means for fixing the saddle shaft in the saddle support tube at a height at which the rocking arm and the protruding piece do not contact. The method of claim 3, wherein The stop means, Fitness device characterized in that it is formed using a support pin that can hold the handle shaft or saddle shaft at a constant height by engaging the handle support tube or the saddle support tube and simultaneously with the handle shaft or the saddle shaft inserted into the tube. . The method of claim 1, The lower end of the handle shaft has a roller in sliding contact with the cam wheel, and has a pressing means with a spring for urging the roller toward the cam wheel. The method of claim 1, The rocking arm is provided with a pair of rollers disposed forwards and backwards in a forward portion of the rocking arm, and is in sliding contact with a cam wheel through the pair of rollers. The method according to any one of claims 1 to 8, In the cam wheel, The entire circumferential cam surface with the longest cam surface having the longest radial distance from the center of rotation of the pivot axis, and the opposite cam surface having the radial distance shorter than the longest cam surface and disposed approximately opposite the longest cam surface. Fitness equipment, characterized in that provided. The method of claim 9, And said camwheel is configured such that said opposing cam surface is comprised of the shortest cam surface with said radial distance shortest in said entire circumferential cam surface. The method of claim 10, And the cam wheel is configured such that the longest cam surface and the shortest cam surface form a circular arc surface. The method of claim 11, The cam wheel is composed of a circular eccentric cam whose entire circumferential cam surface is formed in a circle, eccentric from the center of the circle and attached to the pivot axis, The circular eccentric cam has a longest cam surface equal to the length obtained by adding an eccentric amount to the radius of the circle and the distance from the center of rotation of the pivot axis while being located on the side opposite to the longest cam surface. Fitness device characterized in that it has the shortest cam surface equal to the length minus the eccentric amount from the radius of the circle. The method according to any one of claims 1 to 8, In the cam wheel, The longest cam surface provided on both sides of the pivot axis centered on the pivot axis and having the longest radial distance from the center of rotation of the pivot axis, and And a full-window cam surface provided on both sides of the pivot axis centered on the pivot axis and having an inner cam surface whose radial distance is shorter than the longest cam surface. The method of claim 13, And said camwheel is configured such that said inner cam surface is comprised of the shortest cam surface with said radial distance shortest in said entire circumferential cam surface. The method of claim 14, And the cam wheel is configured such that the longest cam surface and the shortest cam surface form a circular arc curved surface. The method of claim 15, The cam wheel, In the entire circumferential cam surface, both longest cam surfaces are symmetrically disposed with respect to the center of the pivot axis, and both shortest cam surfaces are symmetrically disposed with respect to the center of the pivot axis, passing through the center of the pivot axis for the longest. The line connecting the cam surface forms a right angle with the line connecting the shortest cam surface through the center of the pivot axis. The method of claim 16, The cam wheel is a fitness device, characterized in that composed of an elliptical cam wheel symmetrical in the long axis and short axis.

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