KR200308616Y1 - The waist sporting good - Google Patents

Abstract

The present invention relates to a lower body exercise machine. The subject innovation is assembled to maintain the base member 10 is made of a base member; A rotation device (30) provided between the upper portion of the base member (10) and the seat support plate (24) of the sheet member (20) to rotate the sheet member (20); And an angle adjusting device 70 provided on the outer member 32 of the rotating device 30 and having a backrest member 71 thereon.

The present invention configured as described above allows the rotation and rolling of the seat member to be performed simultaneously or separately, so that the waist and pelvic movements are naturally possible, and the angle adjustment to the backrest member is enabled, and the seat member is raised and stood up repeatedly. The movement is possible for the knee joint, so it is possible to perform the complex lower body exercise such as the pelvic movement of the user's waist and the movement of the knee joint.

Description

Lower Body Exercises {THE WAIST SPORTING GOOD}

The present invention relates to a waist exerciser, in particular, by rotating and rolling the seat member is possible to exercise the waist and pelvis, it is possible to adjust the angle for the backrest, and to move up and down while sitting on the seat member knee It relates to a lower body exercise machine that can exercise for the joint.

In general, various types of exercise machines are manufactured to perform exercises appropriate to each part of the human body, and these exercise machines are manufactured for each of the arms, legs, waist, upper and lower body, and the whole body, so that the user's will Therefore, by using it appropriately to strengthen the necessary muscles for each part of the human body will be strengthened. Here, the exercise machine for training the lower body of the user will be described.

The conventional lower body exercise machine has a problem that takes up a lot of places for the economic burden and storage when purchasing and using the exercise equipment for each leg, waist exercise can be made, the use of a lot of power for the user Continuous exercise was not possible, which caused the problem of being unsuitable for the exercise of the elderly with weak physical strength.

The present invention has been devised to solve such a conventional problem, the present invention is possible to rotate and roll and adjust the angle of the user's waist and pelvis movement can move up and down the lower body that can perform knee joint movement The purpose is to provide an exercise machine.

Technical object of the present invention for achieving the above object, the base member is assembled and maintained to form a rectangular body; A rotary device provided between the base member and the seat support plate of the seat member to rotate the seat member; And an angle adjusting device provided on an outer member of the rotating device and having a backrest member on the top.

1 is an overall side view of the lower body exercise machine according to the present invention.

Figure 2 is an exploded perspective view of the main part of the lower body exercise machine according to the present invention.

Figure 3 is an overall cross-sectional view of the lower body exercise machine according to the present invention.

Figure 4a, 4b is an operation state sectional view showing the rotational motion and the rolling motion of the lower body exerciser in the present invention.

Figure 5 is a cross-sectional view showing the operation of the lower and lower body exercise machine according to the present invention.

Figure 6 is a cross-sectional view of the operation state of the backrest angle control device of the lower body exercise machine according to the present invention.

Figure 7 is a cross-sectional view showing another embodiment of the lower body exercise machine according to the present invention.

8 is a side view of main parts of FIG. 7;

9A and 9B are sectional views of the operating state of FIG.

<Description of the symbols for the main parts of the drawings>

10: base member 20: sheet member

24: seat support plate 30: rotating device

32,36: inner and outer member 37: fitting hole

38: finishing member 39: motor shaft

40: motor 44: pin fastening

45: fixing piece 46: fixing member

46a: groove 50a: inclined portion

51: rotating groove 52: horizontal hole

53: step groove 54: connection member

55 moving member 56 bearing member

57: fitting member 60: support member

61: finishing plate 62: compression spring

64: horizontal protrusion pin 65: vertical hole

66: adjusting nut 70: angle adjusting device

71: back member 72: horizontal fixing member

73: vertical finishing member 74: vertical connecting member

75: finishing plate 75a: flow hole

76 gas cylinder 77 rod

78: locking member 80: horizontal holding device

82: rotating member 83: adjusting hole

83a, 83b: upper and lower locking part 83c: moving part

84: horizontal holding member 86: adjusting pin

A: rolling means

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention.

1 is an overall side view of the lower body exercise machine according to the present invention, Figure 2 is an exploded perspective view of the main part of the lower body exercise machine according to the present invention, Figure 3 is an overall cross-sectional view of the lower body exercise machine according to the present invention, Figure 4a, 4b is a cross-sectional view of the operating state showing the rotational motion and the rolling motion of the lower body exercise machine in the present invention, Figure 5 is a cross-sectional view of the operating state showing the lifting and lowering motion of the lower body exercise machine according to the present invention, Figure 6 Fig. 7 is a cross-sectional view showing another embodiment of the lower body exercise device according to the present invention, Fig. 8 is a side view of the main part of Fig. 7, and Figs. 9A and 9B are operations of Fig. 7. Status section.

First, as shown in Figures 1 to 6, the lower body exerciser 1 according to the present invention is largely the base member 10, the seat member 20, the rotating device 30, the rolling means (A) and the angle adjustment Device 70.

Specifically, the base member 10 is assembled and maintained to maintain a rectangular parallelepiped.

The seat member 20 is formed so that the center portion is projected so that the user's urethral portion (perineum) is touched to be massaged, both sides are provided with a cushion portion 22 formed so that the hip portion is naturally placed, the lower portion of the seat support plate ( 24).

And, the lower portion of the sheet member 20 is provided with a horizontal bar 26 to protrude to both sides, both sides of the horizontal bar 26 is provided with an armrest 28 formed to be curved backwards.

The rotating device 30 has a cylindrical outer member 32 fixedly fastened by being seated on the upper portion of the base member 10 and a cylindrical inner member 36 movably inserted into the inner diameter of the outer member 32. ), The inner member 36 is fixed to the upper end, the closing member 38, the eccentric fitting hole 37 is formed, and is fixed in close contact with the lower portion of the closing member 38, the upper motor shaft 39 As a result, a motor 40 inserted into the fitting hole 37 of the finishing member 38 and a fitting groove 42 into which the motor shaft 40 is inserted are formed, and a pin fastening hole 44 is formed thereon. The fixing piece 46 is integrally formed between the fixing member 46 and the fixing piece 45 of the fixing member 46 and the seat support plate 24 of the sheet member 20 to roll the sheet member 20. It consists of a rolling means (A) to make.

Insertion hole (39a) is formed in the motor shaft (39), fitting hole (46a) is formed in the fixing member 46 to match the insertion hole (39a) through the pin 47 through the motor shaft (39) It is to be stably fixed to the fixing member (46).

The rolling means (A) has an inclined portion (50a) is formed on one side of the lower end, the rotating groove 51 is inserted into which the fixing piece 45 of the fixing member 46 is formed, horizontally with the rotating groove (51) A horizontal hole 52 is formed in communication with each other, and includes a protrusion 50 having vertical grooves 53 formed at both sides of the rotation groove 51, and a coupling part 54 formed to be stepped in two with the protrusion 50 ( 55); A bearing member 56 inserted into the fastening portion 54 of the connector 55; A fastener 57 inserted into the outer diameter of the bearing member 56 and fixed to the seat support plate 24 of the seat member 20; A fixing pin 58 inserted through the horizontal hole 22 of the protrusion 50 and the pin fastening hole 44 of the fixing piece 45 to pivotally fix the connector 55 to the fixing member 46; The support member 60 is inserted into the vertical groove 53 of the lower part of the protrusion 50 and the groove 46a of the upper end of the fixing member 46 to maintain the horizontality of the sheet member 20.

At this time, the fastening nut 59 is fastened to the fastening portion 54 of the connector 55. The inclined portion 50a has an angle of about 11 degrees.

Meanwhile, the closing plate 61 is fixedly installed at the inner diameter of the lower end of the outer member 32, and the compression spring 62 is disposed between the lower end of the inner member 36 movably inserted into the outer member 32 and the closing plate 61. ) Is interposed to support the movement of the inner member 36 by the weight of the user.

That is, when the user sits on the sheet member 20, the compression spring 62 is compressed while the inner member 36 moves downward along the inner diameter of the outer member 32 by the weight, and when the sheet member 20 rises, the compressive force is increased. As it is released and moved to the original position, the knee joint movement can be performed for the user.

And, the outer periphery of the inner member 36, the horizontal protrusion pin 64 is arranged, the outer member 32 is formed with a vertical long hole 65, the horizontal protrusion pin 64 protrudes horizontally, the horizontal protrusion pin ( 64, the adjustment nut 66 is fastened and fixed to adjust the height of the sheet member 20.

At this time, when the adjusting nut 66 is completely tightened to the horizontal protrusion pin 64, the inner member 36 does not move, and the inner member is loosened when the adjusting nut 66 is loosely loosened to the horizontal protrusion pin 64. 36 is moved. The maximum length of movement of the sheet member 20 corresponds to the length of the horizontal long hole 65 of the outer member (32).

In addition, the outer diameter of the upper portion of the outer member 32, the angle adjusting device 70 is provided, the upper portion of the angle adjusting device 70 is provided with a backrest member 71 to the user to comfortably lean back.

The angle adjusting device 70 is a rectangular tube type horizontal fixing member 72 of which one surface is inclined fixed to the outer diameter of the outer member 32, and a vertical closing member 73 fixed to communicate with the other surface of the horizontal fixing member 72. ), And the vertical closing member 73, the upper side and one side thereof is pivotally arranged by the fixing pin 79, and the vertical connection member 74 provided with the backrest member 71 on the upper side to enable height adjustment, and horizontal A fixing plate 72 fixed to an inner diameter of the fixing member 72 and having a flow plate 75a formed therein, and a gas cylinder 76 having one side flowably inserted into the flow hole 75a of the closing plate 75; One side is inserted into the gas cylinder 76 so as to be movable, and the other side protrudes from the rod 77 arranged below the vertical closing member 73 and the vertical connecting member 74 and the horizontal fixing member 72. The rod 77 and the gas cylinder 76 are rotatably provided to constitute a locking member 78 for locking the operation of the rod 77.

On the other hand, the lower body exerciser as shown in Figures 7 to 9 shows another embodiment of Figures 1 to 6, which is made of the same structure and operation as in Figures 1 to 6, rolling means (A Equipped with a horizontal holding device 80 that can selectively maintain the tilt and the horizontal state.

That is, the base member 10, the seat member 20, the rotating device 30, the rolling means A and the angle adjusting device 70 constituting the lower body exercise machine 1 are made in the same way, and the rolling means ( A horizontal holding device 80 is provided for keeping A) horizontal and tilting.

Specifically, the horizontal holding device 80 is inserted and fixed to the upper portion of the closing member 38, the lower portion of the fixing member 46, the motor shaft 39 is inserted and fixed rotation member 82 is fixed )Wow; The lower part is in close contact with the upper portion of the rotating member 82, the fixing member 46, the connecting member 55 and the fixing device 57 is located in the inner diameter, the adjustment hole 83 is maintained by maintaining the same height on both sides of the upper outer periphery Formed horizontal adjusting member 84; Inserted into the adjustment hole 83 of the horizontal adjustment member 84, and consists of a control pin 86 fastened and fixed to the fixture (57).

The adjusting hole 83 is composed of an upper locking portion 83a and a lower locking portion 83b to which the adjustment pin 86 is caught, and a moving portion 83c between upper and lower locking portions 83a and 83b. Is formed. That is, when the adjusting pin 86 is located on the upper locking portion 83a, the horizontal adjusting member 84 is moved downward so that the lower portion is in close contact with the upper portion of the rotating member 82, and thus the rolling means A is maintained horizontally. When positioned in the lower locking portion 83b, the horizontal adjusting member 84 is moved upward, and the lower portion thereof is in close contact with the upper part of the rotating member 82, thereby inclining by the angle of the inclined portion 50a (about 11 °). .

Referring to the operating state of the present invention configured as described above, first, the user sits on the cushion portion 22 of the seat member 20, as shown in Figures 1 to 3, and then comfortably lean back on the backrest member 71, The lower side of the sheet member 20 rests the arm on the armrest 28 which is formed to be curved to the rear of both sides of the horizontal bar 26 protruding to both sides. Then, the urethra (perineum) of the user is in contact with the center portion, the hip portion is naturally placed on both sides.

At this time, the sheet member 20 is a support member 60 inserted between the vertical groove 53 of the lower portion of the protrusion 50 of the connector 55 and the groove 46a of the upper end of the fixing member 46 by the user's weight. While pressing, the inclined portion 50a (about 11 °) formed on one side of the lower end of the protrusion 50 of the connector 55 is in close contact with the upper portion of the fixing member 46 so that the sheet member 20 is inclined at about 11 ° angle. State is maintained.

In this state, as shown in FIGS. 4A and 4B, the motor 40 of the rotating device 30 is rotated. Then, the fixing member 46 is inserted and fixed through the fitting hole 37 of the closing member 38 inserted and fixed to the upper portion of the inner member 36 of the inner diameter of the outer member 32, and the fitting groove of the fixing member 46 is provided by the motor shaft 39. The motor 40 inserted in 42 is rotated.

Accordingly, the pin 47 inserted into the fitting groove 42 of the fixing member 46 as the motor shaft 39 is inserted through the insertion hole 39a of the fixing member 46 and the insertion hole 39a of the motor shaft 39. The fixed member 46 in a fixed state is rotated by).

At the same time, the fixing piece 45 of the fixing member 46 is inserted into the pivoting groove 51 of the protrusion 50 so that the horizontal hole 52 of the protrusion 50 and the pin fastening hole 44 of the fixing piece 45 are fixed. The connector 55 is rotatably fixed to the fixing member 46 by the fixing pin 58 inserted through the rotating member.

Accordingly, the bearing member 56 inserted into the fastening portion 54 of the connector 55, the fixing member 57 inserted into the outer diameter of the bearing member 56, and fixed to the seat support plate 24 of the sheet member 20 are provided. As it rotates, the sheet member 20 rotates.

At the same time as the user sits on the seat member 20 is inserted between the vertical groove 53 of the lower portion of the protrusion 50 of the connector 55 and the groove 46a of the upper end of the fixing member 46 by the weight of the user While the support member 60 is pressed, the inclined portion 50a (about 11 °) formed at one side of the lower end of the protruding portion 50 of the connector 55 is in close contact with the upper portion of the fixing member 46 so that the sheet member 20 is about 11. As it rotates at an angled angle, rolling occurs at the same time so that the user's waist (pelvis) moves naturally.

On the other hand, as shown in Figure 5, the lower end diameter of the outer member 32 is fixedly installed to the closing plate 61, between the lower end of the inner member 36 and the closing plate 60 inserted into the outer member 32 to be movable. There is a compression spring 62 is interposed to support the movement of the inner member 36 by the user's weight.

That is, when the user sits on the seat member 20, the compression member 62 is compressed while the inner member 36 moves downward along the inner diameter of the outer member 32 by the weight, and the user rises from the seat member 20. The compression force is released and returned to distal position. Repeatedly proceeding with these motions will allow the knee joint movement.

Such knee joint movement is preferably carried out in the state that the rolling means (A) can only rotate the rotation as described above.

And, the outer periphery of the inner member 36, the horizontal protrusion pin 64 is arranged, the outer member 32 is formed with a vertical long hole 65, the horizontal protrusion pin 64 protrudes horizontally, the horizontal protrusion pin ( 64, the adjustment nut 66 is fastened and fixed to adjust the height of the sheet member 20.

At this time, when the adjustment nut 66 is completely tightened to the horizontal protrusion pin 64, the inner member 36 does not move, and thus the knee joint movement is impossible, and the adjustment nut 66 is attached to the horizontal protrusion pin 64. Only loosely loosen the inner member 36 is moved to allow the knee joint movement, the maximum length of movement corresponds to the length of the horizontal long hole 65 of the outer member (32).

On the other hand, as shown in Figure 6 the outer member 32, the outer diameter of the upper portion of the angle adjusting device 70 is provided, the upper portion of the angle adjusting device 70 is provided with a backrest member 71 to the user to comfortably lean back do.

Looking at the operation state of the angle adjusting device 70, the user is sitting on the seat member 20, the one side is inclined fixed to the upper outer diameter of the outer member 32 in a state of comfortably leaning back on the backrest member (71). Protruding from the horizontal fixing member 72 of the square tube type, and fixed to the inner diameter of the horizontal fixing member 72 by rotating the locking member 78 provided on the rod 77, the gas cylinder 76 to be rotated to one side. One side is movably inserted into the gas cylinder 76, and the other side releases the locked state of the rod 77 arranged below the vertical closing member 73 and the vertical connecting member 74.

In this state, the backrest member 71 is leaned to use the weight. Then, the upper and one side of the vertical finishing member (73) fixed in communication with the other surface of the horizontal fixing member (72) is rotatably arranged by the fixing pin (79), so that the backrest member (71) can be adjusted in height. The vertical connection member 74 having the other side of the rod 77 arranged on the lower portion is pushed outward while the upper portion is circularly moved around the fixing pin 79, and the lower portion is circularly moved inwardly. By moving, one side of the rod 77 is stretched into the gas cylinder 76, and the backrest member 71 is angle-adjusted.

At this time, when the lower portion of the vertical connection member 74 is circular motion around the fixing pin 79, the flow hole of the closing plate 75 is fixed to the inner diameter of the horizontal fixing member 72 so that interference does not occur The gas cylinder 76 inserted into the 75a flows.

As such, the backrest member 71 releases the force that leans the backrest member 71 outward while the angle adjustment is made. Then, one side is movably inserted into the gas cylinder 76 in which one side is movably inserted into the flow hole 75a of the closing plate 75 of the inner diameter of the horizontal fixing member 72, and the other side is a vertical connection member ( 74) The rod 77 built in the lower part extends outward.

Accordingly, the vertical connection member 74 provided with the backrest member 71 on the upper part to adjust the height is moved to the original position with respect to the fixing pin 79.

On the other hand, the angle adjustment device 70 is protruded to the horizontal fixing member 72, so that the operation is not performed in the locked state of the locking member 78 provided to be rotatable in the rod 77, the gas cylinder 76 do.

In addition, the lower body exerciser as shown in Figures 7 to 9 as another embodiment of Figures 1 to 6, which is made of the same structure and operation as shown in Figures 1 to 6, and tilting the rolling means (A) and There is provided a horizontal holding device 80 that can selectively maintain a horizontal state.

That is, the base member 10, the seat member 20, the rotating device 30, the rolling means A and the angle adjusting device 70 constituting the lower body exercise machine 1 are made in the same way, and the rolling means ( A horizontal holding device 80 is provided for keeping A) horizontal and tilting.

Looking at the operation state for this, as shown in Figure 9a to rotate the motor 40 of the rotating device (30). Then, the fixing member 46 is inserted and fixed through the fitting hole 37 of the closing member 38 inserted and fixed to the upper portion of the inner member 36 of the inner diameter of the outer member 32, and the fitting groove of the fixing member 46 is provided by the motor shaft 39. The motor 40 inserted in 42 is rotated.

Accordingly, the pin 47 inserted into the fitting groove 42 of the fixing member 46 as the motor shaft 39 is inserted through the insertion hole 39a of the fixing member 46 and the insertion hole 39a of the motor shaft 39. The fixed member 46 in a fixed state is rotated by).

At the same time, the fixing piece 45 of the fixing member 46 is inserted into the pivoting groove 51 of the protrusion 50 so that the horizontal hole 52 of the protrusion 50 and the pin fastening hole 44 of the fixing piece 45 are fixed. The connector 55 is rotatably fixed to the fixing member 46 by the fixing pin 58 inserted through the rotating member.

Accordingly, the bearing member 56 inserted into the fastening portion 54 of the connector 55, the fixing member 57 inserted into the outer diameter of the bearing member 56, and fixed to the seat support plate 24 of the sheet member 20 are provided. As it rotates, the sheet member 20 rotates.

At this time, the rolling means (A) is in a state in which rolling is not generated by the horizontal holding device (80). That is, the lower portion of the horizontal adjusting member 84 is in close contact with the upper portion of the rotating member 82, so that only the rotary motion is generated, and the rolling motion is not generated. At the same time, the adjustment pin 86 is located in the upper locking portion 83a of the adjustment hole 83 formed in the horizontal adjustment member 84. (See Fig. 8)

In this state, in order to perform the rolling motion as shown in FIG. 9B, the horizontal adjusting member 84 is moved so that the lower portion of the horizontal adjusting member 84 is spaced apart from the upper portion of the rotating member 82.

That is, the horizontal adjusting member 84 is moved to one side and is located at the upper locking portion 83a of the adjusting hole 83, and then moved to one side from the outer diameter of the adjusting pin 86 fastened and fixed to the fastener 57, Lowering the moving portion 83c of the adjusting hole 83 and then moving to the other side, the lower locking portion 83b of the adjusting hole 83 is caught on the outer diameter of the adjusting pin 86 and at the same time the horizontal adjusting member ( 84, the lower portion is spaced apart from the upper portion of the rotating member (82).

As the user sits on the seat member 20 in such a state, the weight is inserted between the vertical groove 53 of the lower portion of the protrusion 50 of the connector 55 and the groove 46a of the upper end of the fixing member 46 by the weight of the user. While the support member 60 is pressed, the inclined portion 50a (about 11 °) formed at one side of the lower end of the protruding portion 50 of the connector 55 is in close contact with the upper portion of the fixing member 46 so that the sheet member 20 is weak. It is kept tilted at an 11 ° angle.

Thereafter, the motor 40 of the rotating device 30 is rotated. Then, the fixing member 46 is inserted and fixed through the fitting hole 37 of the closing member 38 inserted and fixed to the upper portion of the inner member 36 of the inner diameter of the outer member 32, and the fitting groove of the fixing member 46 is provided by the motor shaft 39. The motor 40 inserted in 42 is rotated.

Accordingly, the pin 47 inserted into the fitting groove 42 of the fixing member 46 as the motor shaft 39 is inserted through the insertion hole 39a of the fixing member 46 and the insertion hole 39a of the motor shaft 39. The fixed member 46 in a fixed state is rotated by).

At the same time, the fixing piece 45 of the fixing member 46 is inserted into the pivoting groove 51 of the protrusion 50 so that the horizontal hole 52 of the protrusion 50 and the pin fastening hole 44 of the fixing piece 45 are fixed. The connector 55 is rotatably fixed to the fixing member 46 by the fixing pin 58 inserted through the rotating member.

Accordingly, the bearing member 56 inserted into the fastening portion 54 of the connector 55, the fixing member 57 inserted into the outer diameter of the bearing member 56, and fixed to the seat support plate 24 of the sheet member 20 are provided. As it rotates, the sheet member 20 rotates.

At the same time, the support member 60 inserted between the vertical groove 53 of the lower part of the protrusion 50 of the connector 55 and the groove 46a of the upper end of the fixing member 46 is pressed by the user's weight while the connector 55 is pressed. Since the inclined portion (50a) (about 11 °) formed on one side of the lower end of the protrusion 50 is in close contact with the upper portion of the fixing member 46 is rotated while the seat member 20 is inclined at about 11 ° angle Rolling occurs at the same time according to the user's waist (pelvis) is to move naturally.

According to the lower body exerciser of the present invention described above, the rotation and rolling of the seat member is made at the same time or separately, so that the waist and pelvic movements are naturally possible, and the angle adjustment of the backrest member is made possible. As you can stand up and stand up, you can exercise on your knee joint, so that you can do complex lower body exercises such as pelvic movements on your back and exercise on your knee joints.

Claims (8)

A base member 10 assembled and held to form a rectangular parallelepiped; A rotation device (30) provided between the upper portion of the base member (10) and the seat support plate (24) of the sheet member (20) to rotate the sheet member (20); And An angle adjusting device (70) provided between the outer member (32) and the backrest member (71) of the rotating device (30) to adjust the angle of the backrest member (71); Lower body exercise, characterized in that consisting of. The method of claim 1, wherein the rotating device 30 An outer member 32 fastened and fixed to an upper portion of the base member 10; An inner member 36 movably inserted into an inner diameter of the outer member 32; A closing member 38 inserted and fixed to an upper portion of the inner member 36 and having a fitting hole 37 formed therein; A motor 40 fixed to be inserted into the fitting hole 37 of the finishing member 38 by an upper motor shaft 39; The motor shaft 39 is inserted and fixed by the pin 47, the contact portion 43 is formed in the lower outer diameter, the fixing member 45 is formed integrally with the fixing piece 45 formed with a pin fastening hole 44 on the top 46; And Rolling means (A) provided between the fixing piece (45) of the fixing member (46) and the sheet member (20) to roll the sheet member (20); Lower body exercise, characterized in that consisting of. The method of claim 2, wherein the rolling means (A) An inclined portion 50a is formed at one side of the lower side, and a rotation groove 51 into which the fixing piece 45 of the fixing member 46 is inserted is formed, and a horizontal hole is formed to communicate horizontally with the rotation groove 51. 52 is formed, the connector 55 consisting of a protrusion 50, the vertical groove 53 is formed on both sides of the rotation groove 51, and a fastening portion 54 formed in two steps with the protrusion 50; A bearing member 56 inserted into the fastening portion 54 of the connector 55; A fastener 57 inserted into an outer diameter of the bearing member 56 and fixed to the seat support plate 24 of the seat member 20; Fixed pin 58 is inserted through the horizontal hole 52 of the protrusion 50 and the pin fastening hole 44 of the fixing piece 45 to secure the connector 55 to the fixing member 46 to be rotatable. ); A support member 60 inserted into the vertical groove 53 below the protrusion 50 and the groove 46a at the top of the fixing member 46 to maintain the horizontality of the sheet member 20; Lower body exercise, characterized in that consisting of. The method according to claim 1 or 2, Fixing the closing plate 61 is fixed to the inner diameter of the lower member 32, Lower body, characterized in that the compression spring 62 is interposed between the lower end of the inner member and the closing plate (61). According to claim 2, wherein the horizontal protrusion pin 64 is formed on the outer periphery of the inner member 36, The outer member 32 is formed with a vertical long hole 65 in which the horizontal protrusion pin 64 protrudes horizontally, The lower nut exercise machine, characterized in that the adjustment nut (66) is fastened and fixed to the horizontal protrusion pin (64) to adjust the height of the sheet member (20). According to claim 1, wherein the angle adjusting device 70 A horizontal fixing member 72 having one surface inclined at an outer diameter of the outer member 32; A vertical finishing member 73 fixed to communicate with the other surface of the horizontal fixing member 72; A vertical connection member 74 having an upper side and one side of the vertical finishing member 73 rotatably arranged with a fixing pin 79, and having a height adjustment of the backrest member 71 at an upper portion thereof; A closing plate 75 fixed to the inner diameter of the horizontal fixing member 72 and having a flow hole 75a formed therein; A gas cylinder 76 having one side flowably inserted into the flow hole 75a of the closing plate 75; A rod 77 having one side movably inserted into the gas cylinder 76 and the other side of the rod 77 disposed below the vertical closing member 73 and the vertical connecting member 74; And A locking member (78) which protrudes from the horizontal fixing member (72) and is rotatably provided at the rod (77) and the gas cylinder (76) to determine the operation of the rod (77); Lower body exercise, characterized in that consisting of. The method of claim 2 or 3, Between the rotating device 30, the rolling means (A) is provided with a horizontal holding device (80) for tilting the rolling means (A) and maintaining it in a horizontal state, The horizontal holding device 80 A rotating member 82 inserted into and fixed to an upper portion of the closing member 38 and a lower portion of the fixing member 46 into which the motor shaft 39 is inserted and fixed; The lower part is in close contact with the upper portion of the rotating member 82, the fixing member 46, the connecting member 55 and the fixing device 57 is located in the inner diameter, the horizontal adjustment hole 83 is formed on the upper outer periphery Adjusting member 84; And An adjustment pin 86 inserted into the adjustment hole 83 of the horizontal adjustment member 84 and fastened and fixed to the fixture 57; Lower body exercise, characterized in that consisting of. The method of claim 7, wherein the adjusting hole 83 The upper and lower locking portions 83a and 83b to which the adjustment pin 86 is engaged, Lower body exercise device, characterized in that the moving portion (83c) is formed between the upper and lower locking portions (83a, 83b).