KR20100085114A - Passive exercise machine - Google Patents

Abstract

This aims to provide a passive exercise machine which does not give different depressing feelings of sole rests even to the users having different body structures but can retain a fixed using feeling. The passive exercise machine (1) comprises a seat (2) for seating the hip of a user (M), right and left footrests (3) to be stepped by the right and left soles of the user (M) seated on the seat (2), and a seat driving unit (50) for displacing the position of the seat (2) so that the load balance of the user (M) on the seat (2) and the footrests (3) may be changed to change the dead weight to act on the legs. The footrests (3) include sole rests (4) made vertically movable while bearing the soles, elastic means (6) for biasing the sole rests (4) upward, and bias adjusting means (7) for making the modulus of elasticity of the elastic means (6) adjustable.

Description

Passive exercise equipment {PASSIVE EXERCISE MACHINE}

The present invention provides a passive passive exercise device for changing the weight acting on the user's leg by moving the seat part while the user's sole is placed on the foot rest and the user's hip is supported on the seat part. It is about.

Conventionally, the seat is moved by a seat driver while the user's sole is placed on the sole-surmounted part of the footstool and the buttocks are supported by the seat. In view of the positional relationship with the seat, an exercise device is proposed which moves up and down to keep it substantially constant (see Japanese Patent Application Laid-Open No. 2005-58733 and 2007-89650). According to such a passive exercise device, the weight applied to the user's leg can be changed and the muscle group of the thigh can be tensed and relaxed with little bending and blooming of the knee which burdens the user. In the passive exercise machine, the footrest of the foot rest is moved up and down through a pantograph expansion mechanism including a foot rest drive. However, the pantograph mechanism has a problem that the manufacturing cost is high due to the complicated structure.

Thus, in order to simplify the structure of the mechanism for moving the foot rest up and down and to reduce the manufacturing cost, the invention has been devised to interpose an elastic device between the base part of the foot rest and the footrest. However, because the user's physique is different, the weight of the legs, etc. are different, so that the magnitude of the load applied to the foot rest is uneven, and the user's feeling of pressing the footrest is different. Therefore, there is a problem that such a fitness device can not secure a certain feeling of use.

An object of the present invention is to provide a passive exercise device that can secure a certain feeling without a difference in the feeling of pressing the footrest even if the user is a different physique.

In order to solve this problem, the passive exercise device of the present invention, the seating portion 2 to put the buttocks of the user (M), the user M sitting on the seating portion (2) put the left and right soles The weight on the legs by changing the load balance applied to the seat 2 and the foot rest 3 of the user M by causing the position movement of the left and right foot rest 3 and the seat 2 to be moved. Provided is a passive exercise device (1) comprising a seat driver (50) to change. The foot rest 3 is provided with a footrest 4 installed so as to be movable up and down with the footrest placed thereon, an elastic device 6 for pressing the footrest 4 upwards, and an elastic modulus of the elastic device 6. And a pressure regulating device 7 adapted to be adjusted.

According to the present invention, the elastic modulus of the elastic device 6 for pressing the footrest 4 upward by the pressure regulating device 7 is adjusted in accordance with the user M having a different physique. ), The elastic modulus is set high, and the elastic modulus is set low for the user M with a light leg, etc.], so that even a user M having a different physique can secure a substantially constant feeling.

In addition, the passive exercise device of the present invention, the driving unit for adjusting the elastic modulus of the elastic device 6 by driving the weight input unit 8, the pressure control device 7 to input the weight of the user (M) ( 9) and a control unit which performs drive control of the adjustment drive unit 9 in accordance with the weight input to the weight input unit 8.

According to the present invention, since the user M only inputs his or her own weight in the weight input unit 8, the elastic modulus of the elastic device 6 can be automatically set by the control unit based on the input weight. Good usability of the passive exercise device 1 can be ensured.

In addition, the passive exercise device of the present invention, for adjusting the elastic modulus of the elastic device 6 by driving the weight detection unit 10, the pressure control device 7 to detect the weight of the seated user (M) It is preferable to include the control part which performs drive control of the adjustment drive part 9 according to the drive part 9 and the weight detected by the weight detection part 10. As shown in FIG.

According to the present invention, when the user M is seated, his or her weight is detected by the weight detection unit 10, and based on the detected body weight, the control unit automatically sets the elastic modulus of the elastic device 6, The good usability of the passive exercise equipment 1 can be ensured.

In addition, the passive exercise device of the present invention comprises a plurality of spring members 11 provided with the elastic device 6 between the footrest 4 and the base 5 of the foot rest 3. Spring members 11 are provided with a non-connecting spring member 11a having a non-connecting end 11a _{1 which} is not connected to the base 5 or the footrest 4 in its natural state, and the pressure regulating device 7 It is preferable to comprise a member which can switch between the state connected to both the non-connection end 11a ₁ of the non-connection spring member 11a, the base part 5, or the footboard 4, and the state which is not connected.

According to such a structure of this invention, the structure of the foot stand 3 provided with the pressure regulation apparatus 7 can be simplified, and the manufacturing cost of the passive exercise machine 1 can be reduced.

Figure 1a is a schematic plan view of the footrest of the foot rest provided in the passive exercise device according to an embodiment of the present invention.
FIG. 1B is a cross-sectional view taken along the line AA of FIG. 1A.
2 is a side view of the passive exercise machine.
3 is a plan view of the passive exercise machine.
4 is an exploded perspective view of the passive exercise device.
5 is an exploded perspective view of the seat drive unit.
6 is a side view of the seat drive unit;
7A is a plan view illustrating the footrest of the footrest of the driven exercise device according to the embodiment of the present invention.
FIG. 7B is a cross-sectional view taken along the line BB of FIG. 7A.
8 is a modified embodiment in which the arrangement of the spring members is arranged differently.
9 is a side view of the passive exercise device according to an embodiment of the present invention.
10 is a side view of the passive exercise device according to an embodiment of the present invention.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated concretely according to the Example shown in an accompanying drawing. The passive exercise device 1 according to the embodiment of the present invention, as shown in Figs. 2 and 3, includes a device base 20 placed at a predetermined position such as the floor, and the There is a seat supporter 21 and a handle post 30 above. The seat supporter 21 has a seat 2 supporting the buttocks of the user M at the upper end. The handle post 30 has a handle 31 at the upper end that the user M can grip by hand as needed. In the machine base part 20, between the seat support part 21 and the handle post 30, the footstool 3 which makes an upper surface the sole-surmounted part 4 is provided. The foot rest 3 regulates the position of the left and right feet when the user M places the left and right soles on the footrest 4, and a pair is provided side by side.

The seat supporter 21 includes a seat driver 50 that swings the seat 2, and a lift mechanism that lifts the seat 2 and the seat driver 50 up and down with respect to the machine base 20. (elevating mechanism: 60) is installed. The structure of the seat drive part 50 and the elevation mechanism 60 is mentioned later.

The seat drive unit 50 uses a drive source in a state where the buttocks are placed on the contact surface 2a of the seat 2 and the soles are placed on the footrest 4 of the foot rest 3. By swinging the part 2 to change the position of the buttocks, the weight of the user himself acting on the leg of the user M is changed. That is, in the state in which the weight of the user M is distributed and supported on the buttocks and legs, by changing the position of the buttocks, the weight supported by the seat 2 or the foot rest 3 is increased and decreased as a result. Change the working weight.

In this case, when the knee is bent by a predetermined angle, the ratio of supporting the weight by the seating portion 2 is reduced, which is applied to the thighs of the user M as in the case of bending the knee by performing a squat exercise. The load may increase and constrict the muscle group of the thigh. That is, when the seat 2 is swung by a driving source, the muscle group of the thighs repeats tension and relaxation by passive movement, not voluntary movement of the user M. That is, when the seat drive part 50 swings the seat part 2, the movement of the muscle group of the thigh part mainly becomes possible.

The swing direction is preferably set such that shear force is not applied to the knee joint. With the buttocks of the user M supported by the contact surface 2a of the seat 2, the legs of the user M have a distance between the heel side as shown in FIG. It is a natural posture to be larger than the distance. The gap angle θ2 between the two feet can be determined by the position of placing the sole on the foot support 3. Thus, by swinging the seat 2 in the direction along the centerline connecting the heel and toe of each foot when the foot is placed on the foot rest 3, the movement can be performed without exerting a shear force on the knee joint. . That is, when the seat portion 2 moves forward from the last position in the swing range, the period for moving forward rightward and the period for forward moving leftward are set so that the left and right legs of the left and right legs are not exerted on the knee joint. It becomes possible to apply weight to each of the thighs.

In the example shown in FIG. 1, the contact surface 2a, which is the upper surface of the seating part 2, is a substantially horizontal plane, but contracts the muscle group in the thigh by varying the user's own weight on the user M's leg. Since the movement to induce the movement is performed, the contact surface 2a in contact with the buttocks of the user M is preferably inclined forward and downward in the direction in which the seat portion 2 swings. That is, as the front end portion of the seat 2, the portion supporting the right buttocks of the user M is inclined down the right front side, and the portion supporting the left buttock of the user M is tilted down to the left front side. It is desirable to lose. According to such a structure, when the seat part 2 moves forward from the last position in the swing range, the weight carried on the leg can be increased, thereby improving the exercise effect.

At the upper end of the handle post 30, the operation display device 32 is provided at the center of the handle 31. The operation display apparatus 32 performs the instruction | operation operation regarding the operation | movement of the seat drive part 50 and the elevation mechanism 60, the display regarding the reference | standard of exercise amount, etc. are performed. When the user M grips the handle 31, the user M can stabilize the position of his upper body.

The structure of the seat support part 21 is demonstrated in detail. As shown in FIG. 4, the seat supporter 21 includes a hollow brace 22 mounted on the machine base 20, and the lower end of the elevating mechanism 60 is housed inside the brace 22. . The elevating mechanism 60 includes an elevating base 61 for elevating and slidably moving with respect to the brace 22, and the seat driving unit 50 is mounted on the upper end of the elevating base 61. Thus, the seat drive unit 50 is movable with respect to the device base 20 together with the seat unit 2.

The center line of the brace 22 is straight, inclined backward with respect to the up and down direction (that is, inclined upward toward the rear), and the lifting base 61 slides in the brace 22, whereby the seat portion 2 The position of the contact surface (2a) of the c) can be adjusted in a straight line along the centerline of the brace 22 with respect to the vertical direction. That is, the contact surface 2a of the seat part 2 is positioned in the up-down direction, is adjusted in the front-rear direction, and is located rearward as much as it is located above. In this example, the angle φ formed by the center line of the brace 22 with respect to the machine base 20 is set at an angle of approximately 75 °.

The lifting base 61 is lifted up and down by a lifting drive 62 having a drive motor 63. In addition to the drive motor 63, the lift drive unit 62 includes a columnar fixing member 64 fixed to the machine base 20 and a ball screw screwed to the fixing member 64. One movable member 65 is included. The movable member 65 uses the structure which advances and retracts the movable member 65 with respect to the stationary member 64 by rotating the movable member 65 by decelerating the rotation of the drive motor 63. The lifting base 61 is mounted on the upper end of the movable member 65 and moves up and down as the movable member 65 moves forward and backward with respect to the fixed member 64.

The lifting base 61 has a pedestal 61a in which the seat drive unit 50 is provided, and a pair of guide plates 61b are provided on the lower surface of the pedestal 61a. The upper end of the movable member 65 in the lift drive unit 62 is coupled to the lower surface side of the base 61a. On the outer surface of each guide plate 61b, a roller 61c is mounted. By guiding the roller 61c by the rail portion 22a provided inside the brace 22, the lifting base 61 can be smoothly moved with respect to the brace 22. The sensor which detects the forward and backward distance of the movable member 65 with respect to the stationary member 64 is provided. Although the structure which controls rotation of the drive motor 63 is made to match the detection value by a sensor with the target value indicated according to the input from the operation display apparatus 32, since this structure is not a summary, it abbreviate | omits description. do.

The base 61a of the lifting base 61 is equipped with a tubular elevating cover 66. The lower end portion of the elevating cover 66 overlaps the side surface of the brace 22 in the range in which the elevating drive portion 62 expands and contracts, whereby the elevating base portion 61 is external even in the state where the elevating drive portion 62 is fully extended. Not exposed to Further, a mechanism cover 67 formed of a flexible material made of fabric is attached to the base 61a of the lifting base 61. By the mechanism cover 67 covering between the base 61a and the seat 2, the seat drive 50 is prevented from being exposed to the outside.

The seat drive unit 50 will be described with reference to FIGS. 5 and 6. The seat drive unit 50 constitutes a mechanism for swinging the seat 2 together with the support 61a of the lifting base 61. A pair of shaft support plates 51a and 51b is installed on the upper surface of the support 61a, and the seat driving unit 50 is rotated about the shaft support plates 51a and 51b so as to enable rotation of the shafts 52 and 52b. Installed in The rotating shafts 52a and 52b are arranged back and forth on the same axis, and the seat driving unit 50 rotates about the rotating shafts 52a and 52b, so that the seat 2 coupled to the seat driving unit 50 is in the left and right direction. It is possible to swing in the [direction shown by arrow N in FIG. 4].

The seat drive unit 50 has a pair of front and rear frame plates 53a and 53b, and both frame plates 53a and 53b are coupled through a pair of left and right frame side plates 54a and 54b. Both frame side plates 54a and 54b are provided so that the lower end of the front link 55 and the rear link 56 which rotate about a shaft in the left-right direction is rotatable about the rotation shafts 55a and 56a. Upper ends of the front link 55 and the rear link 56 are provided by the rotation shafts 55b and 56b so as to enable rotation of the shaft with respect to the support plate 57. The upper end of the rear link 56 is not installed directly on the support plate 57 to enable axial rotation, but on the bearing plate 57a fixed to the support plate 57 to enable axial rotation.

The moving range of the support plate 57 is that the front end of the support plate 57 moves on an arc centered on the rotation axis 55a, and the rear end of the support plate 57 is located on the arc of the rotation axis 56a. It is regulated to move. The rear link 56 is formed to have a larger size than the front link 55, and the rotation radius of the front and rear ends of the support plate 57 is different, so that the support plate 57 is inclined at its upper surface as it moves back and forth. Will change the angle. Specifically, when the position shown in Fig. 6 is the rear end position of the movement range in the front-rear direction, as the front side moves forward, the front end portion of the support plate 57 is lowered relative to the rear end portion, and the inclination angle of the upper surface is increased. On the contrary, when moving backward from the front end position, the front end of the support plate 57 rises relatively with respect to the rear end, and the inclination angle of the upper surface becomes small. That is, the movement of the seat part 2 in the front-back direction (direction shown by the arrow X in FIG. 4) is attained. Although linear movement is shown in FIG. 4, since the inclination angle of a front-back direction actually changes, it becomes the movement which mixed the linear movement and rotational movement of the front-back direction.

The motor 71, which is a driving source for swinging the support plate 57 with respect to the support 61a, is held by both frame side plates 54a and 54b. The motor 71 is installed vertically so that the output shaft protrudes upward. A worm 72 is coupled to the output shaft of the motor 71. The first shaft (73) and the second shaft (74) are supported by the frame side plates (54a, 54b), and the first shaft (73) has a worm wheel that meshes with the worm (72). wheel 75) is installed. Gears 76 are also provided on the first shaft 73, which meshes with gears 77 provided on the second shaft 74. At both ends of the first shaft 73, eccentric cranks 78 which rotate with the first shaft 73 are respectively mounted. One end of the arm link 79 is rotatably supported by the eccentric crank 78, and the other end of the arm link 79 protrudes to the left and right of the front link 55. Are respectively rotatably supported.

By this configuration, when the motor 71 rotates and the first shaft 73 rotates, the front link 55 is moved back and forth around the rotation shaft 55a by the eccentric crank 78 and the arm link 79. And the front part of the support plate 57 oscillates in the front-back direction (direction shown by the arrow X in FIG. 4) around the rotating shaft 55a. In addition, since the rear link 56 rotates around the rotation shaft 56a, the inclination angle of the upper surface changes as the support plate 57 moves in the front-rear direction.

On the other hand, one end of the second shaft 74 is provided to protrude an eccentric pin 74a, and one end of the eccentric rod 80 is rotatably supported by the eccentric pin 74a. . The other end of the eccentric rod 80 is rotatably connected to the coupling fastening portion 81 attached to the base 61a. The eccentric pin 74a and the eccentric rod 80 may be provided on either side of the seat drive unit 50.

By this structure, when the motor 71 rotates and the 2nd shaft 74 rotates through the 1st shaft 73, the eccentric pin 74a and the eccentric rod 80 of the eccentric pin 74a The height position with respect to the base 61a changes, and as a result, the support plate 57 oscillates in the left-right direction (direction shown by arrow N in FIG. 4) around the rotation shafts 52a and 52b.

A DC brushless motor or the like is used for the motor 71, and a DC motor is used as the drive motor 63. The drive motor 63 is disposed in a space surrounded by the frame plates 53a and 53b, the frame side plates 54a and 54b, the support 61a, and the support plate 57, and the gears 76 and 77 also have this. Since it is arrange | positioned in space, the seat drive part 50 becomes compact.

The seat drive unit 50 basically moves the seat 2 downwards in both the right front and the left front. However, in the above-described configuration, by setting the gear ratio of the gears 76 and 77 and the phase difference between the eccentric crank 78 and the eccentric pin 74a as appropriate, the movement trajectory of the seat 2 is V-shaped (left and right 1). In addition to the two round trips back and forth between round trips, W-shape (four round trips back and forth between left and right round trips) and 8 rounds (two round trips back and forth between left and right round trips) The trajectory of which the position is shifted from side to side).

The driving and stopping of the drive motor 63 and the motor 71 are instructed by the operation of the operation display device 32. That is, the operation display device 32 is provided with an operation unit which instructs the operation and stop of the motor 71 and instructs the rotational speed of the motor 71 to designate an exercise time or exercise intensity. Operations of the operation unit and the display unit provided in the operation display device 32, and the motor 71 and the drive motor 63 are associated with a control unit (not shown).

When the user M drives and moves the seat 2 by the seat driver 50 while being seated in the seat 2, the user M is caught by the seat 2 and the foot rest 3 of the user M. The load balance changes and the weight acting on the legs can be changed. Specifically, in the state where the front of the seat 2 is in the lowered position, the center of gravity of the user M is moved forward, which acts by the weight of the user M on the leg including the thigh. The load will increase. Moreover, in a state where the seat 2 is inclined to one of the left and right sides of the user M, the load by the weight of the user M mainly acts on one leg of the side where the seat 2 is inclined. Done. According to this combination, the weight acting on the left and right legs of the user M can be changed so that effective muscle training can be performed on the left and right legs.

In such passive exercise device 1, in order to cause muscle contraction of the muscle groups of the thighs without knee pain, the user M having soft pain needs to maintain the bending angle θ1 of the knee at an appropriate angle. The exercise of maintaining the knee bend angle at an appropriate angle is an exercise such as changing the weight applied to the thigh with the knee bent at a predetermined angle in squat motion. It is desirable to match the joints and leg joints in a right direction. That is, in use, it is assumed that the user M keeps the foot on the foot rest 3, which is appropriately extended according to the length of the leg of the user M to allow the user to rest the seat 2. It can respond by setting an up-down position suitably and making constant the positional relationship of the footrest 4 and the seat part 2 which drive-move. The setting of the up-down position of the seat part 2 is performed by operation of the operation part which raises and lowers the seat part 2 installed in the operation display apparatus 32. As shown in FIG.

As shown in FIG. 1, the footrest 3 is mounted so that the footrest 4 can move up and down with respect to the base part 5 fixed to the apparatus base part 20 through the guide structure which is not shown in figure. Moreover, the footrest 3 is equipped with the elastic device 6 which presses the footrest 4 upwards. When the position of the seat 2 is moved by the seat driving unit 50, the load balance applied to the seat 2 and the foot rest 3 of the user M changes, so that the user M naturally has an elastic device. The footrest 4 is appropriately pressed against the pressure of (6), and the footrest 4 is moved up and down so that the positional relationship with the seat part 2 is kept constant. Thereby, it is anticipated that the leg of the user M will be trained, with little bending of the knee and twisting. The elastic device 6 has a function of returning upward of the footrest 4 which the user M has stepped on.

When the load balance applied to the footrest 3 of the user M increases, the user M steps on the footrest 4 by the soles to support the body, but the force pressed against the footrest 4 is the user. The weights of the legs and the like according to the physique (weight) of the (M) are also applied, and thus vary according to the physique of the user (M). In the passive exercise device 1 of the present example, even if the user M has a different physique, it is possible to secure a constant feeling of use so that a difference in stepping on the footrest does not occur.

That is, the foot rest 3 is provided with a bias adjuster 7 for adjusting the elastic coefficient of the elastic device 6. The footrest 3 is comprised from the spring member 11 of several pieces (three in this example) interposed between the footrest 4 and the base part 5 of the footrest 3, and has several spring members In (11) there is an unconnected end 11a _{1 which} is not connected to the base 5 or the footrest 4 (in this example, not to the base 5) in a natural state in which no external force is applied. A plurality of non-connected spring members 11a (two in this example) are provided.

The pressure regulating device 7 includes both the non-connection end 11a ₁ and the base 5 or the footrest 4 of the non-connection spring member 11a (in this example, the non-connection end 11a ₁ and the base 5). It consists of a member (sliding member 12 mentioned later) which can switch between the state connected to both and the state not connected.

More specifically, as shown in FIG. 1, three spring members 11 are arranged on the lower surface of the footrest 4 at intervals in the front and rear directions thereof, that is, in the front (toe side) and rear (heel side) directions. I support you to hang. All of these spring members 11 are connected at their upper ends to the footrest 4. The lower end of the spring member 11 in the front end position is connected to the base 5, but the other spring members 11 are formed in a length in which the lower end is not connected to the base 5 in a natural state. That is, these spring members 11 are non-connected spring members 11a, and the lower ends thereof are non-connected ends 11a ₁ .

On the top surface of the base portion 5, a slide member 12 having a thickness substantially equal to the gap width between the non-connection end portion 11a ₁ of the non-connection spring member 11a and the top surface of the base portion 5 is railed. It is provided so that it can slide to the front-back direction through the guide part 13 of the form. The sliding member 12 is formed with a resilient operation portion 14 in the form of a handle that projects rearward from the foot rest 3. The user M slides the slide member 12 forward by the elastic operation unit 14 so that the non-connected end 11a ₁ of the non-connected spring member 11a comes into contact with the upper surface of the slide member 12. The non-connecting spring member 11a can be connected to the footrest 4 and the base 5. In the slide member 12, the number of the non-connection spring members 11a which connect the footrest 4 and the base part 5 can be selected by the distance which slides forward.

Thus, when the user M selects the number of spring members 11 which connect the footrest 4 and the base part 5 by operating the slide member 12, the elasticity of the whole elastic device 6 will be reduced. You can adjust and set the coefficients. Therefore, in accordance with the user M having a different physique, the elastic modulus of the elastic device 6 that presses the footrest 4 upward by the pressure regulating device 7 is adjusted, and the user M with a heavy leg or the like. By setting the modulus of elasticity high for the user M and setting the modulus of elasticity low for the user M having a lighter leg or the like, it is possible to secure a substantially constant feeling even for the user M having different physiques.

Hereinafter, the passive exercise device of a 2nd Example is demonstrated. Elements similar to those described above are given the same reference numerals as those shown in the first embodiment, and therefore only portions that differ from those in the first embodiment will be described.

7 is another example of the foot rest 3, which is a member capable of switching between a state of connecting to both of the non-connection end 11a ₁ and the base 5, and a state of non-connecting, of the slide member 12 described above. Instead, an extensible base member 15 is used. The stretchable base member 15 includes an upper wall 15a that can be in contact with the disconnected end 11a ₁ of the disconnected spring member 11a. The upper wall 15a is located on the upper surface of the base 5 through parallel links, and is movable up and down. The upper wall 15a is provided with a handle-shaped elastic operation part 14 which projects upward from the foot rest 3. The upper wall 15a is provided respectively corresponding to the arrangement position of the non-connection spring member 11a. The second embodiment can produce the same results as the first embodiment.

In the first and second embodiments, the spring members 11 constituting the elastic device 6 are arranged in a straight line in the front-rear direction at the center of the foot rest 3. However, as shown in FIG. 8, the spring member 11 can be arrange | positioned in arbitrary shapes, such as arrange | positioning in triangle shape in plan view. In FIG. 8, one spring member 11 is arranged at the front of the foot rest 3, and at the rear of the foot rest 3, a pair of non-connected spring members 11a are arranged in the left and right directions. Doing. The elastic operation part 14 of the elastic base member 15 protrudes to the rear of the foot rest 3.

9 shows a third embodiment. The third embodiment includes a weight input unit 8 capable of inputting the weight of the user M, and the pressure regulating device 7 includes an adjustment driving unit for adjusting the elastic modulus of the elastic device 6. 9). Drive control of the adjustment drive part 9 is performed by control by a control part according to the input weight set via the weight input part 8. The weight input unit 8 can be installed in the operation display device 32, for example. For example, the adjustment drive unit 9 may include a drive source 16 such as a motor or a solenoid, and a mechanical section 17 for driving the slide member 12 or driving the stretchable base member 15 up and down. However, other structures may be used.

In the third embodiment, the user M only inputs his or her own weight to the weight input unit 8, and based on the input weight, the user M enters the pressure regulating device 7 through the adjusting drive unit 9 by the control unit. By this, the elastic modulus of the elastic device 6 can be set automatically. Therefore, there is no complication of setting the modulus of elasticity of the elastic device 6 by hand operation whenever the pressure regulating device 7 is used, as in the above-described embodiment, and it is convenient to use the passive exercise device 1. The castle can be secured.

10 shows a fourth embodiment. The fourth embodiment includes a weight detection unit 10 that detects the weight of the seated user M, and the pressure regulating device 7 adjusts the driving unit 9 for adjusting the elastic modulus of the elastic device 6. The drive control of the adjustment drive unit 9 is performed by control by the control unit in accordance with the weight detected by the weight detection unit 10. The weight detection part 10 can be comprised, for example including the weight sensor 10a with which the seat part 2 and the pair of foot rests 3 were equipped. By the weight sensor 10a, the respective loads on the buttocks and the soles of the user M can be detected, and the weight of the user M can be detected by these totals.

In the fourth embodiment, when the user M is seated, his or her weight is detected by the weight detecting unit 10, and the pressure adjusting device 7 is controlled by the control unit 9 by the control unit based on the detected weight. ), Automatic setting of the elastic modulus of the elastic device 6 is performed. Therefore, as in the above-described embodiment, it is possible to secure good convenience of the passive exercise device 1 without the trouble of setting the modulus of elasticity of the elastic device 6 by hand operation whenever the pressure regulating device 7 is used. can do.

Claims (4)

A seat configured to put the buttocks of the user;
Right and left footstool (footstool) so that the user sitting on the seat put the left and right soles; And
A seat driver configured to change the weight of the user acting on the leg by shifting the position of the seat and changing the load balance of the user on the seat and the foot rest.
Including;
The foot rest is,
A sole-surmounted part which is movable up and down with the sole on the sole;
An elastic device adapted to bias the scaffold upwards; And
And a bias adjuster adapted to adjust an elastic modulus of the elastic device. The method of claim 1,
A weight input unit configured to input a weight of the user;
A regulating driver configured to drive the pressure regulating device to adjust the elastic modulus of the elastic device; And
The passive exercise device further comprises a control unit for controlling the driving of the control unit according to the weight input to the weight input unit. The method of claim 1,
A weight detector configured to detect a weight of a seated user;
An adjusting drive unit configured to adjust the elastic modulus of the elastic device by driving the pressure adjusting device; And
The passive exercise device further comprising a control unit for controlling the drive of the adjustment drive unit in accordance with the weight detected by the weight detection unit. 4. The method according to any one of claims 1 to 3,
The elastic device includes a plurality of spring members installed between the footrest and the base part of the foot rest,
The plurality of spring members includes an unconnected spring member having an unconnected end that is not connected to the base or the scaffold in a natural state.
And the pressure regulating device comprises a member capable of switching between a non-connected end of the non-connected spring member and a state connected to both the base portion or the footrest and a non-connected state.

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