JP2008237785A5 - - Google Patents

Description

Gravity load exercise device

  The present invention relates to a gravity load exercise device capable of passively exercising a lower limb while applying a load using gravity to the lower limb.

  In a conventional strength training device, for example, a strength training device for the lower limbs, a load is created by the device user himself / herself exercising the muscle strength of the lower limbs and moving a heavy load. It was also an exercise with a relatively high degree of effort. On the other hand, in the walking movement of a human living in an actual gravitational environment, the muscle strength of the lower limbs is passively exerted to resist the weight. None of the conventional devices perform strength training while applying a load similar to that in actual walking to the lower limbs.

  For example, in the following Patent Document 1, a base, a link body rotatably connected to the base, a crus holding part rotatably connected to the link body, a link body and a crus holding And a driving means that bends and stretches the hips and knee joints by driving the driving means in a state where the heel part is placed on the base and the lower leg part is placed on the lower leg holding part. An exercise device adapted to be made is disclosed.

WO2006 / 040861A1

  However, the above-described exercise device merely gives the lower limbs a motion to bend and extend by the driving means, and cannot perform exercises that exert muscle strength similar to how muscle strength is exhibited during actual walking. Therefore, it was insufficient as a more practical strength training device.

  The present invention has been made in view of the above circumstances, and is similar to a method of exerting muscular strength during actual walking while applying a load similar to the load in actual walking, that is, applying a high load using gravity to the lower limbs. An object of the present invention is to provide a gravity-loading exercise apparatus that can exercise by exerting muscular strength passively on the lower limbs.

  Moreover, it aims at providing the gravity load exercise | movement apparatus which can exercise | movement of a lower limb, applying the load using the above-mentioned gravity to a lower limb with a small effort.

  It is another object of the present invention to provide a weight-load exercise device that can safely apply the same load as that of walking to the lower limbs only by sitting, and allows elderly people and the like to exercise the lower limbs safely.

In order to solve the above-mentioned problem, a gravity load exercise device according to claim 1 according to the present invention is provided.
An inclined guide member supported in an inclined posture with respect to the floor surface;
A chair portion that is slidable along the length direction of the inclined guide member and on which the heel portion is placed;
A foot fixing part that is slidable along the length direction of the inclined guide member and to which the foot part is fixed;
A power unit for reciprocating linear movement of the foot fixing unit along the inclined guide member, and bending and extending the lower limb under a gravity load;
It is characterized by providing.

  According to the gravity load exercising apparatus of the first aspect, the reciprocating linear motion of the foot fixing portion with the foot fixed along the inclined guide member in a posture in which the exerciser is seated on the slidable chair portion on the inclination guide member. Then, in a state where a high load using gravity is applied to the lower limbs, the hip joints of the lower limbs, knees and ankles are passively (forcibly) bent and extended in accordance with the reciprocating linear motion of the foot fixing part. The flexion / extension movement of each joint is passively performed by the muscle / tendon assembly of the lower limbs.

  Since the athlete can sit on the chair and apply a load using gravity to the lower limbs, the muscular strength during actual walking while applying a high load using the gravity to the lower limbs with little effort. Can exercise by exerting high muscular strength similar to the way of exerting on the lower limbs. Moreover, exercise can be performed safely. The above-mentioned muscle / tendon association includes a nervous system related to the movement of the muscle / tendon.

  The gravity load exercise device according to claim 2 of the present invention is characterized by comprising gravity load changing means for changing the gravity load applied to the lower limb stepwise or steplessly.

  According to the gravity load exercising apparatus of claim 2, by providing gravity load changing means for changing the gravity load applied to the lower limbs stepwise or steplessly, the level of gravity load of an exerciser such as an elderly person can walk. It is possible to perform optimal strength training according to the level of muscle strength or the exercise program of the exerciser.

  The gravity load motion device according to claim 3 of the present invention is characterized in that the gravity load changing means includes means for adjusting the inclination angle of the inclination guide member with respect to the floor surface.

  According to the gravity load exercise device of claim 3, the gravity load changing means is constituted by means for adjusting the inclination angle of the inclination guide member with respect to the floor surface, thereby changing the level of the gravity load with a simple structure. be able to.

  The gravity load exercise device according to a fourth aspect of the present invention is characterized in that the power load changing means is composed of a weight added to the chair portion.

According to the gravity load exercise device of the fourth aspect, the power load changing means is composed of the weight added to the chair portion, so that the level of the gravity load can be changed with a simple configuration. The weight can change the level of gravity load, for example, by changing the number of dumbbells.

  In the gravity load exercise device according to the fifth aspect of the present invention, the chair portion has a slider that can slide along the length direction of the inclined guide member via the wheel, and the collar portion is placed on the upper surface of the slider. The seat chair is configured to be fixed.

  According to the gravity load exercise | movement apparatus of Claim 5, it can be made to slide smoothly, supporting a chair part stably with respect to an inclination guide member.

  In the gravity load exercise device according to the sixth aspect of the present invention, the seat chair is configured such that the backrest portion can be attached to and detached from the seat portion, the backrest portion is removed, and the prone posture is with the back facing the seat portion. The lower limbs are bent and extended in a prone posture.

  According to the gravity load exercise device of claim 6, the muscle / tendon assembly of the lower limbs is passively expanded and contracted not only in a posture sitting on a sitting chair but also in a posture lying on its back with respect to the seat. And various variations of strength training can be performed.

  In the gravity load exercise device according to the seventh aspect of the present invention, the foot fixing portion has a foot fixing plate that is slidable along the length direction of the inclined guide member via the wheel, and the heel portion is on the chair portion. The foot is fixed to the foot fixing plate in a posture in which is placed.

  According to the gravity load exercise device of the seventh aspect, it is possible to smoothly reciprocate the tilt guide member while stably supporting the foot fixing portion. Thereby, the exercise | movement of a lower limb, ie, the expansion-contraction exercise | movement of the muscle / tendon union of a lower limb, can be performed smoothly.

  In the gravity load exercise device according to the eighth aspect of the present invention, the foot fixing portions are provided independently on the left and right sides corresponding to the left and right foot portions, and the power portion tilts each foot fixing portion. It is the structure which carries out a reciprocating linear motion independently along.

  According to the gravity load exercise device according to claim 8, the foot fixing portions are provided independently on the left and right in correspondence with the left and right feet, and the power portion is independently provided along the inclined guide member. By adopting a configuration in which the reciprocating linear motion is performed, the lower limbs can bend and extend alternately to the left and right, and the expansion and contraction of the left and right muscle / tendon associations can be performed alternately and independently. As a result, more practical lower limb strength training can be performed in a form that is closer to the actual walking motion.

  As described above, the gravity load exercise device according to the present invention has an inclined guide member that is supported in an inclined posture with respect to the floor surface, and is slidable along the length direction of the inclined guide member, and the collar portion is placed thereon. The chair part and the leg fixing part that can slide along the length direction of the inclined guide member and the foot fixing part, and the foot fixing part reciprocate linearly along the inclination guide member, and are in a gravity load state. Since it has a configuration that includes a power unit that flexes and extends the lower limbs under the lower limbs, the easy posture of sitting on the chair, with less effort, applying a high load using gravity to the lower limbs, It has an excellent effect of being able to exercise by exerting muscle strength similar to the way of exerting passively on the lower limbs. As a result, it has an excellent effect that the strength training of the lower limbs can be efficiently performed in a form similar to an actual walking motion.

  In addition, elderly people and patients who are likely to fall in actual walking exercise training can safely put the same load on their lower limbs as if they were sitting on the chair. Can safely perform muscle strength training and exercise programs for the lower limbs, and thereby achieve an excellent effect that the elderly can easily reach a level at which they can safely walk independently.

  Next, the best embodiment of the gravity load exercise device according to the present invention will be described with reference to the drawings. FIG. 1 is a side view showing a gravity load exercise device according to the present invention.

  The gravity load exercise device according to the present invention basically includes an inclined guide member 10, a chair portion 20, a foot fixing portion 30, and a power portion 40.

The inclined guide member 10 is made of a long square pipe material made of steel pipe, and is supported in an inclined posture so that the front is downward with respect to the floor surface 60 as shown in FIGS. 1 to 3. Yes. That is, a horizontally long base 11 for supporting the front end portion 10 a of the inclined guide member 10 is installed on the floor surface 60, and the inclined guide member 10 is mounted on the bearing 12 attached to the upper surface of the base 11. The front end portion 10a is connected and supported so as to be rotatable via a rotatable rotation shaft 13. On the other hand, a horizontally long base 14 for supporting the rear end portion 10b side of the inclined guide member 10 is installed on the floor surface opposite to the base 11. A support column 15 is erected on the upper surface of the base 14. A hanging member 17 fixed to the lower surface of the inclined guide member 10 on the rear end portion 10 b side is fixed to the fixing plate 16 by fixing bolts 50. Thus, with respect to the column 15 provided upright on the base 14 on the floor surface, the rear end 10b side of the inclined guide member 10, via the hanging member 17 is connected and supported.

  As shown in FIG. 1, the hanging member 17 extends in a circular arc shape from the lower surface of the inclined guide member 10 toward the floor surface 60 with the rotation shaft 13 as the center of the radius. A plurality of (five places in the illustrated example) through holes 18A, 18B, 18C,... Are provided at equal intervals (interval P) along the arcuate axis. On the other hand, the fixing plate 16 on the support column 15 side is also provided with a plurality of (two in the illustrated example) through holes (not shown) at equal intervals (interval P) along the arcuate axis. The fixing member 50 is fixed to the fixing plate 16 by inserting the fixing bolt 50 from the through hole of the fixing plate 16 into any of the through holes 18A, 18B. Yes.

The inclination guide member 10 can change the inclination angle α with respect to the floor surface 60. In the example of FIG. 1, the inclination angle of the inclination guide member 10 is set to 40 degrees, and the first through hole 18 </ b> A from the bottom and the second through hole 18 </ b> B from the bottom are provided to the hanging member 17 at this time. Two fixing bolts 50 are inserted into one set. For example, in order to change the inclination angle to 25 degrees indicated by the one-dot chain line in FIG. 1, the two fixing bolts 50 are removed, the inclination guide member 10 is rotated clockwise in FIG. The fixing bolt 50 is inserted and fastened to one set of the fourth through hole 18D from the bottom and the fifth through hole 18E from the bottom.

  In the case of the illustrated example, the inclination guide member 10 can change the inclination angle in steps of 5 degrees between 25 degrees and 40 degrees, but it goes without saying that it can be changed from 0 degrees to 90 degrees. In addition, the through hole can be extended along an arc-shaped axis, and can be changed steplessly within a predetermined angle range. In this way, by changing the inclination angle of the inclination guide member 10 stepwise or steplessly, the gravity load applied to the lower limb of the athlete sitting on the chair portion 20 can be changed stepwise or steplessly. Can do.

  The front base 11 and the rear base 14 are equipped with a pair of left and right free wheels 52, 52 via attachment members 51, respectively. Each free wheel 52 is suspended from the mounting member 51 by a screw-type shaft portion 53. When the bases 11 and 14 are installed on the floor surface 60, the shaft portion 53 is turned in one direction, and FIG. As shown, the free wheels 52 are separated from the floor surface 60. When the shaft portion 53 is rotated in the other direction and each free wheel 52 is grounded with respect to the floor surface 60, the apparatus can be moved. By removing the two fixing bolts 50, the apparatus can be divided into a main body portion on the inclined guide member 10 side and a support column 15 portion, and each can be easily moved on the floor surface 60.

Note, the handle 57 A to accompany the hand when moving is equipped on the back of the rear mounting 15.

  As shown in FIGS. 1 to 3, the chair portion 20 includes a slider 21 that can slide along the length direction of the inclined guide member 10. A seat 22 is fixed to the upper surface of the slider 21. The seat chair 22 includes a seat portion 23 on which the buttocks are placed and a detachable backrest portion 24, and the angle of the backrest portion 24 can be adjusted with respect to the seat portion 23. On the bottom surface of the slider 21, a total of a pair of vertical members 25, 25 arranged on both sides in the width direction of the inclined guide member 10 are fixed.

  As shown in FIG. 4, a total of four free wheels 26 are rotatably supported on the inner surface of each vertical member 25, two front and rear in contact with the upper surface of the inclined guide member 10 and two front and rear in contact with the lower surface. Has been. In addition, two front and rear free wheels 26 that contact the side surface of the inclined guide member 10 are rotatably supported on the lower surface of the attachment 27 positioned in front of and behind the vertical member 25. Accordingly, the slider 21 of the chair portion 20 is stably supported on the tilt guide member 10 via a total of twelve free wheels 26 in the front, rear, left, right, and upper directions, and the length of the tilt guide member 10 via the free wheels 26. It can slide smoothly in the vertical direction. The slider 21 is equipped with a detachable belt 28 to stabilize the posture of the body with the buttocks on the seat 23 and handles 29 and 29 for gripping the left and right hands in the sitting posture. It is attached to the side.

As shown in FIGS. 1 to 3 , the foot fixing portion 30 is located in front of the chair portion 20 and has a foot fixing plate 31 that can slide along the length direction of the inclined guide member 10. The foot fixing plate 31 is a posture in which the heel portion is placed on the chair portion 20 and the foot is fixed. The foot fixing plate 31 is provided with a footing plate 32 on which a sole is placed at a right angle. It has been. The footboard 32 may be changed in angle with respect to the foot fixing plate 31 via a hinge in order to bend the ankle joint more smoothly. For example, it may be opened up to 120 degrees with respect to the foot fixing plate 31. The footboard 32 is equipped with a belt 33 for fixing the foot.

  A total of a pair of vertical members 34 and 34 disposed on both sides in the width direction of the inclined guide member 10 are fixed to the bottom surface of the foot fixing plate 31. Inside each of the vertical members 34, like the vertical member 25, four free wheels 35, which are two in front and rear in contact with the upper surface of the inclined guide member 10 and two in front and rear in contact with the lower surface, are freely pivoted. It is supported. In addition, two free wheels 35 that are in front of and behind the contact with the side surface of the inclined guide member 10 are rotatably supported on the lower surface of the attachment 36 positioned in front of and behind the vertical member 34. As a result, the foot fixing plate 31 of the foot fixing portion 30 is stably supported on the tilt guide member 10 via a total of twelve free wheels 35 in the front, rear, left, right, upper, and lower directions, and the tilt guide via the free wheels 35. It is possible to smoothly slide along the length direction of the member 10.

The power unit 40 reciprocates and linearly moves the foot fixing unit 30 along the inclined guide member 10 so that a load using gravity is applied to the muscle / tendon assembly of the lower limb, and the lower leg crotch, knee, and ankle The joints are bent and extended to passively extend and contract the muscles and tendons of the lower limbs. As shown in FIGS. 1 and 4, a cylinder body 42 of an air cylinder 41 constituting the power unit 40 is fixed to the bottom surface of the inclined guide member 10. In the cylinder main body 42, a rod 43 protrudes and protrudes along the length direction of the inclined guide member 10. The distal end 43a of the rod 43 connecting the attachment 44 is attached, connecting attachment 44 is connected to the vertical member 3 4, 3 4 of the foot fixing section 30. The air cylinder 41 can reciprocate and linearly move the foot fixing portion 30 along the inclined guide member 10 by each operation of extending and reducing the rod 43.

A pair of bearings 54, 54 are attached to the rear upper end portion of the rear extension 21 a of the slider 21 of the chair portion 20 (behind the backrest portion 24), and the bearings 54, 54 are weighted at both ends. The iron bar 56 provided with 55, 55 can be detachably supported (see FIGS . 9 and 10). In order to make the iron bar 56 detachable, each bearing 54 is provided with an opening 54b for putting the iron bar 56 into and out of the accommodating part 54a in the bearing 54 toward the rear. The weights 55 and 55 at both ends can be appropriately changed in weight by changing the number of dumbbells (5 Kg in the illustrated example). The weights 55 and 55 have a function as gravity load changing means for changing the gravity load applied to the lower limbs of the exerciser seated on the chair portion 20.

As shown in FIGS. 1 and 3, bearings 58 and 58 having a pair of free wheels 57 that contact the upper surface of the inclined guide member 10 are attached to the rear end portion of the lower surface of the rear extension 21 a of the slider 21 . . Accordingly, the slider 21 can be smoothly slid along the inclined guide member 10 even when the load of the weights 55, 55 is applied to the slider 21.

The side surface of the slider 21, the exerciser in sitting posture for changing setting an exercise program, the control plate 5 9 is attached. On the control plate 5 9, various operation buttons 59 A (for configuration changes forward speed of the foot fixing section 30, backward speed of the setting change, including emergency stop) is provided (see FIG. 10) .

  A method in which an exerciser such as an elderly person performs strength training using the gravity load exercise device configured as described above will be described with reference to FIGS.

First, the inclination angle of the inclination guide member 10 is set in accordance with the level of the walking ability of the exerciser and the muscle strength of the lower limbs. The inclined guide member 10 can be rotated around the rotation shaft 13 at the front end portion, and one adjacent set of the through holes 18A to 18E of the hanging member 17 is selected, and the hanging member 17 is supported by two fixing bolts 50. It is fixed to the fixing plate 16 on the 15 side. In the example of FIG. 5, one set of through holes 18A and 18B located at the bottom is selected to set the inclination angle α to 40 degrees. Here, the weights 55 and 55 are removed in advance and lowered.

Then, the hip 1 is placed seated on the seat portion 23 on the inclined guide member 10 on the seat 22, the belt 2 8 mounted, placing the foot 2 on the foot section securing plate 31 Then, the foot 2 is fixed by the belt 33. The angle of the backrest 24 is appropriately adjusted according to the inclination angle α. In the state of FIG. 5, the foot fixing plate 31 is in the forward position, and the exerciser sitting on the seat chair 22 pushes the slider 21 backward along the inclined guide member 10 with the muscular strength of the lower leg. The knee joint is slightly bent.

  As shown in FIG. 7, gravity G is applied to the body of the exerciser in the vertical direction of the floor surface 60, and a component force G <b> 1 of this gravity G is applied as a load in the bending / extending direction A of the lower limb (the bending / extending direction of the lower limb). A coincides with the inclination direction of the inclined guide member 10).

  When the power (not shown) is turned on from the state of FIG. 5, the air cylinder 41 is driven and the rod 43 is contracted, the foot fixing plate 31 is pulled rearward along the inclined guide member 10, and the foot fixing plate 31. As the arm is raised, the hip, knee, and ankle joints of the lower limbs of the exerciser are flexibly passively (forced). At this time, the muscle / tendon union around the lower leg crotch, knee, and ankle joints exerts muscle strength in the extending direction with respect to the bending motion of the crotch, knee, and ankle joints. The state, that is, the motion (stretching motion) of pushing up the slider 21 against the gravity and extending the muscle / tendon assembly of the lower limb is passively performed.

  Next, when the air cylinder 41 extends the rod 43 from the state of FIG. 6, the foot fixing plate 31 moves forward along the inclined guide member 10, and temporarily moves along with the forward movement of the foot fixing plate 31. In addition, the hip, knee and ankle joints of the lower limbs of the exerciser are extended passively (forced). At this time, the muscles and tendons associated with the lower leg crotch, knee, and ankle joints exert muscle strength in the contraction direction with respect to the stretching motion of the crotch, knee, and ankle joints. • Movement to shorten the tendon association (shortening movement) is passively performed.

  As the foot fixing plate 31 moves forward, the slider 21 also moves forward. However, after the foot fixing plate 31 stops, an inertial force acts on the slider 21 and the slider 21 tries to move further forward. The hip, knee, and ankle joints of the lower limbs are passively bent (forced), resulting in the posture shown in FIG. At this time, the muscle / tendon union around the hip, knee and ankle joints of the lower limbs exerts a strong muscular strength in the extension direction with respect to the bending motion of the hip, knee and ankle joints, and the gravity load On the other hand, the motion (stretching motion) for extending the muscle / tendon assembly of the lower limbs by stopping the slider 21 is again passively performed.

  Thus, when this gravity load exercise | movement apparatus is used, the reciprocating linear motion of the foot fixing plate 31 is applied to the lower limb while applying a high load using gravity with a small degree of effort by an easy posture sitting on the seat chair 22. In response to the flexion and extension movements of the lower limbs, the extension and contraction movements of the muscles and tendons of the lower limbs are passively performed. By exerting on the body direction, the muscles in the extension direction work when the lower limbs are bent, and the muscles in the contraction direction work when the lower limbs are extended). Can do.

  In addition, according to this gravity load exercise device, the exerciser can safely put the same load on the lower limbs as if he / she was sitting on the sitting chair 22, and elderly people and patients can feel at ease. Therefore, muscle training and exercise programs for the lower limbs can be carried out, and this apparatus can be used to easily reach a level at which elderly people can safely walk independently. In addition, using this device, it is possible to implement an exercise program that helps to maintain or rebuild the ability of independent elderly people to walk.

FIG. 8 shows an example in which the inclination angle of the inclination guide member 10 is set low to 25 degrees. By gradually increasing the inclination angle of the inclination guide member 10 from 25 degrees to 40 degrees,
It is possible to implement an exercise program that gradually increases the load on the lower limb of the exerciser and gradually approaches the actual walking exercise as the exerciser's walking ability progresses.

  The air cylinder 41 can change the speed, that is, the reduction speed / extension speed of the rod 43 in a stepwise manner from a low speed to a high speed, and can appropriately change the linear speed of the forward and backward paths of the foot 2. In addition, the return time from the forward path to the return path can also be changed from zero to several seconds. Further, instead of the air cylinder 41, a hydraulic cylinder, an electric motor, or the like can be used as the power unit 40.

  The inclination guide member 10 can change the inclination angle stepwise or steplessly by power means such as a hydraulic cylinder. For example, a hydraulic cylinder may be interposed between the inclined guide member 10 and the floor surface 60, and the inclined guide member 10 may be rotated around the rotation shaft 13 by a predetermined angle with the hydraulic cylinder. Alternatively, a rack rail is attached to the hanging member 17 side of the inclined guide member 10, a pinion gear meshing with the rack rail is attached to the fixed plate 16 side, and the pinion gear is driven by an electric motor so that the inclined guide member 10 has a predetermined angle. You may make it rotate.

  FIG. 9 and FIG. 10 show an example of muscular strength training for the lower limbs with the weight 55 added. By supporting the iron bar 56 provided with the weights 55 at both ends by the bearings 54, 54 at the rear end of the slider 21, the gravity load applied to the lower limbs of the athlete can be further increased. Thereby, it is suitable not only for an elderly person and a patient but also as a strength training device for an athlete.

  In the embodiment described above, in the posture seated on the chair portion 20, the lower extremity flexion / extension motion by the reciprocating linear motion of the foot fixing portion 30 is an example of passively performing the expansion / contraction motion of the muscle / tendon assembly of the lower limb. Although described, the use example is not limited to this. For example, the back part 24 of the chair part 20 is removed, the shoulder holding part is attached to the seat part 23, and the foot part is fixed to the foot fixing part 30 in a posture in which the back is face down with respect to the seat part 23. In such a posture, the lower limbs can bend and extend, and the extension / contraction motion of the muscle / tendon assembly of the lower limbs can be passively performed.

  The gravity load exercise device according to the present invention can be incorporated into a care bed in a hospital or home as an application example.

  The gravity load exercise device according to the present invention can be used as an exercise program for elderly people or the like and a training device for care prevention. It can also be used in the field of rehabilitation. Furthermore, it can be used as a training device for athletes.

It is a side view of the gravity load exercise | movement apparatus of this invention. It is a figure which shows the state which looked at the gravity load exercise | movement apparatus shown in FIG. 1 from the X direction of FIG. It is a rear view of the gravity load exercise | movement apparatus shown in FIG. It is a YY arrow directional cross-sectional view of the gravity load exercise | movement apparatus shown in FIG. It is a side view which shows a mode that muscular strength training is implemented using the same gravity load exercise | movement apparatus, and shows the bending state of a leg in a gravity load state. It is a side view which shows a mode that muscular strength training is implemented using the same gravity load exercise | movement apparatus, and shows the expansion | extension state of a leg in a gravity load state. It is explanatory drawing which shows a mode that the component of gravity is applied to the bending direction of a leg along an inclination guide member. It is a side view which shows the example which changes the inclination-angle of an inclination guide member. It is a side view which shows the example which attached | subjected the weight to the rear part both sides of a slider. It is a figure which shows the state which looked at the weight with which the back part both sides of the slider were mounted | worn from the X direction of FIG.

DESCRIPTION OF SYMBOLS 1 buttock part 2 foot | leg part 3 thigh part 4 leg part 10 inclination guide member 10a front end part 10b rear end part 11,14 base 12,54 bearing 13 rotating shaft 15 support | pillar 16 fixing plate 17 hanging member 18A, 18B, 18C, 18D, 18E Through hole 20 Chair 21 Slider
21a rear extension part 22 seat chair 23 seat part 24 backrest part 25, 34 vertical member 26, 35, 52, 57 free wheel 27, 36 attachment 28, 33 belt 29, 57 A handle 30 foot part fixing part 31 foot part fixing Plate 32 Foot plate 40 Power section 41 Air cylinder 42 Cylinder body 43 Rod 43a Rod end 44 Connection attachment 50 Fixing bolt 51 Mounting member 53 Shaft portion 54a Bearing housing portion 54b Bearing opening portion 55 Weight 56 Iron rod
58 Bearing 5 9 Control plate 59 A Operation button 60 Floor G Gravity G1 Gravitational force P Pitch between adjacent through holes