KR100609352B1 - Exercising appratus - Google Patents

Abstract

The present invention relates to an exercise device, and more particularly, to an exercise device for imparting an exercise effect through contraction and relaxation of a user's muscle. A driving unit which is installed in parallel to a longitudinal direction of the moving part to generate a rotational force, an eccentric portion having an eccentric shaft which is rotated by receiving rotational force from the driving shaft, and one end of which is eccentric from the rotational center thereof so as to be rotatable with the eccentric shaft A second link portion connected to the rotating portion and one end thereof rotatable about a first axis parallel to the seesaw axis of the movement portion and the other end rotates about a second axis parallel to the second link portion and the driving shaft An exercise device, comprising: a connecting portion including a first link portion that is possibly connected The ball.

Description

Fitness equipment {EXERCISING APPRATUS}

1 is a perspective view of an exercise device according to a first embodiment of the present invention.

Figure 2a is an exploded perspective view showing the main part of the exercise device of FIG.

Figure 2b is an exploded perspective view showing a support of the exercise device of Figure 1;

3 is an exploded perspective view illustrating a driving part, an eccentric part, and a connecting part of the exercise device of FIG. 1.

Figure 4a is a side view showing the main part of the exercise device of FIG.

4B is a side view illustrating a coupling state of the connection part and the exercise part of the exercise device of FIG. 1.

Figure 5 is a side view showing a modification of the exercise device of Figure 1 showing the connection portion and the eccentric portion installed on both sides of the exercise unit.

6A is a side view of the exercise device of FIG. 1 with a pair of support brackets.

6B is a side view illustrating a case in which the exercise device of FIG. 6A includes a pair of second link members.

7 is an exploded perspective view showing the exercise device according to the first embodiment of the present invention.

8 is a plan view showing a main part of the exercise device of FIG.

9 is a side view showing the main part of the exercise device of FIG.

FIG. 10 is a front view illustrating main parts of the exercise device of FIG. 7. FIG.

***** Explanation of symbols for main parts of drawing *****

100: main body 110: cover

120: bottom portion 200: athletic portion

210: movement panel 300: drive unit

310: drive shaft 400: eccentric portion

410: eccentric shaft 420: support bracket

440: balance weight 500: connection

510: first link portion 520: second link portion

600: support portion 610: auxiliary coupling portion

620: bracket 700: rotational force transmission device

710: first pulley 720: second pulley

730: Belt

The present invention relates to an exercise device, and more particularly, to an exercise device that gives an exercise effect through the contraction and relaxation of the user's muscles.

The exercise device refers to a device in which a user exercises by contracting and relaxing muscles. And the exercise equipment, such as a dumbbell or dumbbell, as well as a running machine (running machine), a stationary bicycle (stationary bicycle), stepper and the like.

By the way, the conventional exercise equipment as described above is a conventional exercise device that exercise effect by using the user's muscle strength, has a problem that the active movement of the user must be accompanied.

In particular, in the case of a conventional exercise equipment requires active movement there is a problem that can not be effectively used in the case of a person with a movement disorder can not actively move.

An object of the present invention is to provide an exercise device that does not require active movement of the user in order to solve the above problems.

It is another object of the present invention to provide an exercise device for stably supporting a user's foot or hand.

The present invention has been created in order to achieve the object of the present invention as described above, the present invention is a main body portion, a moving part installed to enable the seesaw movement in the main body portion, the drive shaft is parallel to the longitudinal direction of the movement portion of the main body portion A driving unit for generating a rotational force, an eccentric portion having an eccentric shaft eccentrically rotated from the rotational center, the second link portion having one end rotatably connected to the eccentric shaft, and one end of the movement portion And a connecting portion including a first link portion rotatably connected to the moving portion about a first axis parallel to a seesaw axis and having a second link portion rotatably connected about a second axis parallel to the driving shaft. It provides an exercise device characterized in that.

In order to support the seesaw motion of the moving part, the bottom of the moving part is supported by the support part.

The support part is coupled to the central bottom surface of the moving part and includes an auxiliary coupling part rotatably installed in the movement part in the width direction of the moving part and a pair of brackets installed on the main body part to rotatably support the auxiliary coupling part. It is composed.

The auxiliary coupling part includes a coupling rod rotatably installed on the brackets, and a coupling hole formed to allow the coupling rod to be inserted, and a coupling member coupled to a bottom surface of the movement part.

The drive unit is installed on one side of the outside of the bracket, the drive shaft may be connected to the eccentric portion by the rotational force transmission means.

The torque transmission means may be a belt method or a gear method.

The rotation force transmitting means includes a belt connecting the first pulley and the second pulley to transmit the rotational force of the first pulley installed on the drive shaft, the second pulley provided on the eccentric portion, and the second pulley. It can be configured to include.

The eccentric portion includes a rotation shaft on which the second pulley is installed.

The driving part may be installed at a central portion of the moving part, and one of the brackets may have an opening to allow the belt to pass therethrough.

The driving unit may be located between the brackets.

A balance weight may be provided between the driving shaft of the driving unit and the eccentric portion to have a 180 ° phase difference from the eccentric shaft of the eccentric portion.

The drive shaft may be supported by at least one support bracket.

The driving shaft may be installed at both ends of the driving unit to form a pair, and the eccentric portion and the connecting portion may be configured to form a pair so as to be connected to the respective driving shafts.

The support bracket includes a first support bracket for supporting the drive shaft; It may be configured to include a second support bracket formed on the end of the eccentric shaft to rotatably support the support shaft having the same center of rotation as the drive shaft.

A balance weight may be installed on at least one side of the outside of the first support bracket and the second support bracket such that the balance weight has a 180 ° retardation with the eccentric shaft of the eccentric portion.

The eccentric shaft may be formed larger than the diameter of the drive shaft.

The first link part is coupled to the bottom surface of the moving part, the first member is formed in the first axial direction in the first hinge hole and one end is formed with a first coupling hole corresponding to the first hinge hole, the other end of the second link portion to be described later A first link member having a second coupling hole formed in the second axial direction so as to be rotatably coupled with the first link member, and fitted into the first hinge hole and the first coupling hole to rotatably rotate the coupling member and the first link member. It may be configured to include a first hinge pin for coupling.

The second link portion has a first coupling hole into which the eccentric shaft is fitted so that one end thereof is rotatably coupled to the eccentric shaft, and a second coupling hole is formed such that the other end thereof corresponds to the second coupling hole of the first link member. A second link member; It may be configured to include a second hinge pin fitted in the second coupling hole of the first link member and the second coupling hole of the second link member.

The second link member may be configured as a pair, and the first link member of the first link unit may be positioned between the second link members.

The driving shaft may be installed at both ends of the driving unit to form a pair, and the eccentric portion and the connecting portion may be paired to be connected to the respective driving shafts.

The present invention also provides a main body having a bottom portion, a driving portion provided on the bottom portion to generate a rotational force, a movement portion provided in the longitudinal direction of the drive shaft of the drive portion is installed in the main body portion to enable the seesaw movement; An eccentric part having an eccentric shaft which rotates by receiving a rotational force from the driving unit, and has an eccentric shaft that rotates eccentrically with its rotation center, and one end is rotatably connected to the eccentric shaft, and the other end is a bottom surface of one end of the moving part and a width direction of the moving part And a connection part rotatably connected about a first axis parallel to the first axis and including a joint part positioned between the one end and the other end to bend about the second axis parallel to the driving axis. Provide an appliance.

Hereinafter, the exercise device according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 5, the exercise device according to the first embodiment of the present invention, the main body 100, the exercise unit 200, the drive shaft 310 is installed to enable the seesaw movement in the main body 100 ) Is installed in the main body portion 100 in parallel with the longitudinal direction of the movement unit 200 is a driving unit 300 for generating a rotational force, the rotational force received from the drive shaft 310 rotates and eccentric from the center of rotation An eccentric portion 400 having an axis 410, a second link portion 520 one end of which is rotatably connected to the eccentric shaft 410, and one end of which is parallel to the seesaw axis of the movement part 200; Is connected to the movement unit 200 rotatably around the axis (C1) and the other end is rotatably connected about a second axis (C2) parallel to the second link portion 520 and the drive shaft (310) It is configured to include a connection portion 500 including a first link portion 510.

As shown in FIGS. 1 and 2A, the main body part 100 is configured to form an accommodation space for accommodating the driving part 300, the eccentric part 400, and the connecting part 500.

That is, the main body 100 is coupled to the cover 110 and the cover 110, the opening 111 is formed so that the movement unit 200 is installed, the bottom portion 120 to form the accommodation space It is composed of

And one side of the main body 100 is connected to the post 130 is installed on the control unit 140 for controlling the movement of the movement unit 200 by controlling the drive unit 300 on the upper side. Of course, the installation position of the controller 140 can be variously modified according to the convenience of the designer.

The control unit 140 is configured of a panel, and the panel includes a control unit 141 consisting of buttons and the like so that a user can control the driving of the driving unit 300, and a control program preset according to physical conditions such as the weight of the user. The built-in control circuit unit (not shown), the operation state of the exercise unit 200, the display unit 142 for displaying the amount of exercise (calorie consumption) according to the control program, etc. of the drive unit 300 and the controller 140 A switch or the like is provided for turning on / off the operation.

And the exercise device according to the first embodiment of the present invention is to be additionally installed so that the user can rely on the handle 150 when the user puts his hand or feet on the upper side of the exercise unit 200 As shown in FIG. 1, the handle part 150 may include a first handle part 151 connected to the controller 140 or a second handle part 152 connected to the main body part 100. It can be configured as. The first handle 151 and the second handle 152 may be installed at the same time, or only one.

As shown in FIGS. 1, 2A and 2B, the exercise part 200 includes an exercise panel 210 installed in the opening part 111 of the cover part 110 of the main body part 100 to enable the seesaw movement.

The exercise panel 210 is formed with one or more coupling holes 212 into which the screw 213 can be inserted in the center portion so as to be coupled to the support part 600 to be described later, and at least one of both ends of the connection part ( One or more coupling holes 214 are formed into which the screw 215 can be inserted so as to be able to engage with the 500.

In addition, the upper surface of the exercise panel 210 is covered with a covering part 220 so as to cover the coupling holes 212 and 214 to the outside and the user's feet or hands feel comfortable.

In addition, a plurality of protrusions 221 may be formed on the surface of the covering part 220 to give acupressure effect of the user's foot or hand.

On the other hand, so as to support the seesaw movement of the exercise unit 200, as shown in Figure 2a and 2b, the lower surface of the center is supported by the support unit 600.

As shown in FIGS. 2A and 2B, the support part 600 is coupled to the central bottom of the exercise part 200 and is provided on the exercise part 200 to be rotatably installed in the width direction of the exercise part 200. 610 and the bottom portion 120 is configured to include a pair of brackets 620 to rotatably support the auxiliary coupling portion 610.

As shown in FIG. 2B, the auxiliary coupling part 610 includes a coupling rod 612 rotatably installed on the bracket 620 and a coupling hole 611a to allow the coupling rod 612 to be inserted therein. It is formed and is composed of a coupling member 611 coupled to the bottom of the movement unit 200.

The coupling member 611 is formed with a screw hole (611b) to be coupled by the above-described screw 213 and the like, is installed in the width direction of the moving part 200.

Meanwhile, a coupling hole 621 is formed in the bracket 620 so that the coupling rod 612 is rotatably coupled, and a bearing 622 is preferably installed in the coupling hole 621.

In addition, one or more connecting rods 623 for connecting the pair of brackets 620 are installed to connect the pair of brackets 620 to each other so that the bracket 620 can be installed stably. do.

As shown in FIGS. 2A to 5, the driving unit 300 is installed below the exercise unit 200. That is, since the driving unit 300 is installed below the movement unit 200, the volume of the main body unit 100 according to the installation of the driving unit 300 can be reduced.

In addition, the driving shaft 310 of the driving unit 300 is installed in parallel with the longitudinal direction of the movement unit 200, as shown in Figure 3 and 4a. In this case, the driving unit 300 is installed between the brackets 620.

In addition, as shown in FIG. 3, the driving shaft 310 is provided with an installation key 311 so that a balance weight 440, which will be described later, is installed, and the second link portion 520 is formed at an end thereof. A ring groove 312 in which a 'C' shaped ring 313 may be installed is formed so as not to fall out.

In addition, the driving unit 300 is generally composed of an electric motor, the electric motor is connected by a power line and a signal transmission line so as to be driven and controlled by the control unit 140.

Meanwhile, the eccentric unit 400 receives the rotational force generated from the driving unit 300 and rotates the eccentricity with the rotation center of the driving shaft 310 to perform the seesaw movement of the exercise unit 200 through the connection unit 500. do.

As shown in FIGS. 3, 4A, and 4B, the eccentric unit 400 includes an eccentric shaft 410 installed eccentrically with the driving shaft 310.

And since the load of the user located on the exercise unit 200 is transmitted to the eccentric portion 400 through the connecting portion 500, it is necessary to compensate for this, the eccentric portion 400 is the drive shaft (withstand) the load of the user ( It may further include a support bracket 420 that can rotatably support 310.

The support bracket 420 is coupled to the bottom portion 120 of the main body 100 by screws or the like. In addition, the support bracket 420 may be configured in plural numbers.

In addition, a bearing 421 is additionally installed on the support bracket 420 so that the driving shaft 310 rotates smoothly, and the driving shaft 310 is installed with a bearing 421 inserted therein.

On the other hand, the eccentric shaft 410 and the drive shaft 310 is preferably formed integrally, but further includes a rotating shaft (not shown) connected by the drive shaft 310 and the coupler, the rotating shaft and the eccentric shaft ( 410 may be configured to be connected.

On the other hand, the load in the reverse direction may be generated by the load of the user 300, in order to prevent this is shown in Figures 2a to 5 between the drive shaft 310 and the eccentric portion 400 of the drive unit 300. As described above, the balance weight 440 may be installed to have a 180 ° retardation with the eccentric shaft 410 of the eccentric portion 400. In addition, the balance weight 440 is provided with a key groove 441 into which the installation key 311 formed on the driving shaft 310 can be inserted.

In addition, the balance weight 440 is formed to have a center of gravity eccentric from the center of rotation of the drive shaft 310, as shown in Figure 3, may be configured in a disk shape.

As shown in FIG. 2A, the connection part 500 is rotatably coupled with the movement part 200 and rotatably coupled with the eccentric part 400 to enable the seesaw movement of the exercise part 200. It must be constructed.

That is, the connection part 500 implements the vertical movement of the exercise part 200 by the eccentric rotation of the eccentric shaft 400, and the connection part with the exercise part 200 according to the seesaw motion of the exercise part 200 rotates. It should be configured to be possible.

Therefore, one end of the connection part 500 is rotatably connected to the eccentric shaft 410, and the other end of the first axis C1 is parallel to the bottom surface of the one end of the exercise part 200 and the width direction of the exercise part 200. Is installed rotatably connected to the center, and is configured to include a joint portion 530 which can be bent around the second axis (C2) parallel to the drive shaft 310 positioned between the one end and the other end.

As illustrated in FIG. 4B, the joint part 530 is implemented by a portion in which the second link part 520 and the first link part 510 are rotatably connected about the second axis C2.

As shown in FIGS. 3 to 4B, the first link unit 510 is coupled to the bottom surface of the exercise panel 210 and has a first hinge hole 511 a formed in the first axis C1 direction. The first coupling hole 512a corresponding to the first hinge hole 511a is formed at one end of the member 511 and the second end is rotatably coupled to the second link part 520 to be described later. The coupling member 511 and the first link member 512 formed with the second coupling hole 512c in the direction of the axis C2 and the first hinge hole 511a and the first coupling hole 512a are inserted into the coupling member 511 and the first coupling member 512c. 1 includes a hinge pin 513 to rotatably couple the link member 512.

Screw holes 511b are formed on the upper surface of the connection member 511 to be coupled by the screws 215 corresponding to the coupling holes 214 formed in the movement panel 220. As shown in FIG. 3, the first link member 512 may be formed as a 'c' to be fitted thereto.

In addition, the other end of the first link member 512 may be formed of a letter 'C' of the open end so that the end of the second link portion 520 to be described later to be rotatably fitted. Here, as shown in FIG. 3, the first link member 512 may form a '-' shape so that the connection member 511 may be fitted, and may be coupled to the second link unit 520. The second link member 522 may be formed as a letter 'C' so that the second link member 522 to be described later may be fitted to the first link member 512.

Of course, the connection of the connection member 511 and the first link member 512 and the connection of the first link member 512 and the second link member 522 are connected by a hinge pin in a staggered state, and the like. Can be applied in various ways.

In addition, as shown in FIG. 3, the hinge pin 513 is inserted into the first coupling hole 512a formed in the first link member 512, so that the bearing 512b may be installed to smoothly rotate.

The second link portion 520 is formed with a first coupling hole 521a into which the eccentric shaft 410 is fitted so that one end thereof may be rotatably coupled with the eccentric shaft 410, and the other end thereof is the first link. A second link member 521 having a second coupling hole 521c formed to correspond to the second coupling hole 512c of the member 512; A hinge pin 522 is fitted to the second coupling hole 512c of the first link member 511 and the second coupling hole 521c of the second link member 521.

At this time, the eccentric shaft 410 and the hinge pin 522 are rotatably coupled to the first coupling hole 521a and the second coupling hole 521c of the second link member 521, respectively. 521d) are preferably installed.

Shapes of the connection member 511, the first link member 512, and the second link member 521 may be various shapes according to design conditions.

On the other hand, the drive shaft 310 and the eccentric portion 400 of the drive unit 300 may be directly connected, but may also be connected so that the rotational force can be transmitted by a rotational force transmission device composed of a separate belt method or gear method.

Meanwhile, the eccentric shaft 410 needs to be structurally reinforced because the load applied to the exercise part 200 is transmitted.

Accordingly, the support bracket 420 may be configured in plural, and as shown in FIG. 6A, the support bracket 420 may be installed in pairs on the bottom surface 120 with the eccentric shaft 410 interposed therebetween.

That is, the eccentric shaft 410 has one end coupled to the drive shaft 310 with the first support bracket 421 interposed therebetween, and the other end of the support shaft 423 rotatably installed at the second support bracket 422. ) Is combined.

The support shaft 423 has the same center of rotation and the same diameter as the drive shaft 310, in particular fitted to a bearing (not shown) installed in the second support bracket 422.

At this time, the eccentric shaft 410 may be formed smaller than the diameter of the drive shaft 310, as shown in Figure 6a, may be formed larger than the diameter of the drive shaft 310.

And the balance weight 440 may be installed as one, as shown in Figure 4a, as shown in Figure 6a, can be installed in a pair, the first support bracket 421 and the second It may be installed on both sides or one side outside the support bracket 422.

Meanwhile, as illustrated in FIG. 6B, the second link unit 520 may include a plurality of second link members 521 to distribute the load applied by the user's load.

That is, as shown in FIG. 6B, the second link unit 520 may be configured as a pair of second link members 521 rotatably coupled to the eccentric shaft 410.

At this time, the hinge pin 522 of the first link portion 510 is fitted into the second coupling hole 512c of the first link member 512 of the first link portion 510 and at the same time both ends of the pair The second coupling member 521 is rotatably fitted into the second coupling hole 521c. By supporting the moving part 200 with two second link members 521, the load applied to the eccentric shaft 410 can be distributed.

6A and 6B, the second link unit 520 illustrated in FIGS. 6A and 6B may be installed only at one end of the driving unit 300, but may be installed at both ends of the driving unit 300 as shown in FIG. 5. have.

Unlike the first embodiment of the present invention, the exercise device according to the second embodiment of the present invention, as shown in Figure 7 to 10, the drive unit 300 is installed on one side of the outside of the brackets (620) The drive shaft 310 may be connected to the eccentric portion 400 by the rotational force transmission device 700.

The rotational force transmission device 700 is a second pulley 710 installed on the drive shaft 310, the second pulley 720 provided on the eccentric portion 400, and the rotational force of the drive shaft 310 to the second It is configured to include a belt 730 connecting the first pulley 710 and the second pulley 720 to be delivered to the pulley (720).

The eccentric portion 400 further includes a rotation shaft 740 in which the second pulley 720 is installed. The eccentric shaft 410 is coupled to the end of the rotation shaft 740.

In this case, the driving unit 300 may be installed at one side based on the length direction of the exercise unit 200, and as shown in FIG. 8, the driving unit 300 is installed at the central portion of the exercise unit 200, and the bracket 620. One of the openings 624 may be formed to allow the belt 730 to pass therethrough.

Meanwhile, as shown in FIG. 5, the eccentric part 400 and the connecting part 500 may be installed in pairs at both ends of the exercise part 200, wherein the driving part 300 is installed at both ends. The pair of drive shafts 310 may be connected to the eccentric parts 400, respectively, and may be connected to the eccentric parts 400 at both ends of the rotation shaft 740, respectively.

Meanwhile, the exercise device according to the second embodiment of the present invention is, of course, applied to the configuration of the exercise device according to the first embodiment of the present invention.

Referring to the operation of the exercise device according to the present invention having the configuration as described above in detail.

The user places the hand or foot on the upper side of the exercise unit 200. The user operates the exercise device according to the present invention by operating the control unit 140 while the user's foot is placed. At this time, the user grabs the handle 150 and balances it.

The driving unit 300 operates according to the control signal of the controller 140, and the eccentric shaft 410 connected to the driving shaft 310 rotates according to the operation of the driving unit 300.

As the drive shaft 310 rotates, the connecting portion 500 connected to the eccentric shaft 410 moves the moving portion 200 connected to the connecting portion 500 up and down, so that both ends of the moving portion 200 are relatively. It will form a seesaw movement.

The seesaw movement of the exercise part 200 moves the body part of the user supported by the exercise part 200 so that the user has a passive exercise effect without active movement. In particular, when the user has a physical disability, such as the lower body involuntary, the passive exercise effect can be particularly helpful for rehabilitation.

The exercise device according to the present invention has an effect that the user can give an exercise effect according to the movement of the exercise unit without actively moving.                     

In addition, the exercise device according to the present invention is provided on at least one of both ends of the exercise unit has the advantage that the exercise unit by the simpler configuration to provide a configuration that can add the seesaw movement or up and down reciprocating movement.

In addition, the exercise device according to the present invention has a structure capable of stably supporting the user's load applied to the exercise part by having a simple exercise mechanism has the advantage of preventing damage caused by long-term use.

In addition, the exercise device according to the present invention has the advantage that can be reduced by the increase in volume due to the installation of the drive unit by the drive unit installed on the lower side of the exercise unit.

In addition, the exercise device according to the present invention has an advantage in that it is possible to provide a structure that can prevent the breakage of the component by the load of the user in the installation of the drive unit under the movement.

Claims (21)

Main body; An exercise part installed on the main body to enable a seesaw exercise; A driving unit having a driving shaft installed in parallel with a longitudinal direction of the moving part to generate a rotational force; An eccentric portion which rotates by receiving a rotational force from the drive shaft and has an eccentric shaft eccentric from its rotation center; A second link portion of which one end is rotatably connected to the eccentric shaft, and one end of which is rotatably connected to the movement portion about a first axis parallel to the seesaw axis of the movement portion, and the other end of which is connected to the second link portion and the driving shaft And a connecting part including a first link part rotatably connected about a second axis parallel to the second axis. The first link part is coupled to the bottom surface of the moving part, and the first member has a first hinge hole formed in the first axial direction, one end is formed with a first coupling hole corresponding to the first hinge hole and the other end and the second link portion A first link member having a second coupling hole formed in the second axial direction so as to be rotatably coupled, and fitted into the first hinge hole and the first coupling hole to rotatably couple the coupling member and the first link member; Exercise equipment, characterized in that it comprises a first hinge pin. The method of claim 1, In order to support the seesaw movement of the exercise unit, the exercise unit, characterized in that the bottom of the center is supported by a support unit. The method of claim 2, The support portion And an auxiliary coupling part coupled to the central bottom of the movement part and rotatably installed in the movement part in a width direction of the movement part, and a pair of brackets installed on the main body part to rotatably support the auxiliary coupling part. Exercise equipment. The method of claim 3, wherein The auxiliary coupling part And a coupling rod rotatably installed on the brackets, and a coupling hole formed to allow the coupling rod to be inserted and coupled to the bottom surface of the movement unit. The method according to claim 3 or 4, The driving unit is characterized in that located between the brackets. The method of claim 5, The drive unit is installed on one side of the outside of the bracket, the drive shaft is an exercise device, characterized in that connected to the eccentric portion by the rotational force transmission means. The method of claim 6, The rotational force transmission means Exercise equipment, characterized in that the belt or gear method. The method of claim 6, The rotational force transmission means And a belt connecting the first pulley and the second pulley to transfer the rotational force of the drive shaft to the second pulley, the first pulley installed on the drive shaft, the second pulley installed on the eccentric portion, and the second pulley. Exercise equipment. The method of claim 8, The eccentric unit is characterized in that it comprises a rotating shaft in which the second pulley is installed. The method of claim 6, The driving unit is installed in the central portion of the exercise unit, one of the brackets, characterized in that the opening is formed so that the belt can pass. The method of claim 1, And a balance weight is provided between the driving shaft of the driving unit and the eccentric portion to have a 180 ° retardation with the eccentric shaft of the eccentric portion. The method of claim 1, The drive shaft is installed on both ends of the drive unit to form a pair, the eccentric portion and the connecting portion is characterized in that a pair to be connected to each drive shaft. The method of claim 2 or 12, The drive shaft is an exercise device, characterized in that supported by at least one support bracket. The method of claim 1, The drive shaft is an exercise device, characterized in that supported by at least one support bracket. The method of claim 14, The support bracket A first support bracket supporting the drive shaft; And a second support bracket formed at an end of the eccentric shaft and rotatably supported on a support shaft having the same center of rotation as the drive shaft. The method of claim 15, At least one side of the outer side of the first support bracket and the second support bracket, characterized in that the balance weight is installed so as to have a 180 ° phase difference with the eccentric axis of the eccentric portion. The method of claim 1, The second link portion has a first coupling hole into which the eccentric shaft is fitted so that one end thereof is rotatably coupled to the eccentric shaft, and a second coupling hole is formed such that the other end thereof corresponds to the second coupling hole of the first link member. At least one second link member; And a second hinge pin inserted into the second coupling hole of the first link member and the second coupling hole of the second link member. The method of claim 17, The second link member is composed of a pair, the first link member of the first link unit, characterized in that located between the second link member. The method of claim 14, The drive shaft is installed on both ends of the drive unit to form a pair, the eccentric portion and the connecting portion is characterized in that a pair to be connected to each drive shaft. Main body; An exercise part installed on the main body to enable a seesaw exercise; A driving unit having a driving shaft installed in parallel with a longitudinal direction of the moving part to generate a rotational force; An eccentric portion which rotates by receiving a rotational force from the drive shaft and has an eccentric shaft eccentric from its rotation center; And a second link portion of which one end is rotatably connected to the eccentric shaft, and one end of which is rotatably connected to the movement portion about a first axis parallel to the seesaw axis of the movement portion, and the other end of which is connected with the second link portion. And a connecting portion including a first link portion rotatably connected about a second axis parallel to the driving shaft. The drive shaft is supported by one or more support brackets, The support bracket includes a first support bracket for supporting the drive shaft; A second support bracket formed at an end of the eccentric shaft and rotatably supported on a support shaft having the same center of rotation as the drive shaft; At least one side of the outer side of the first support bracket and the second support bracket, characterized in that the balance weight is installed so as to have a 180 ° phase difference with the eccentric axis of the eccentric portion. delete

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