JP2013236806A - Waist exercise machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waist exercise machine that applies pulling motion, twist movement, or the like to the waist of a user easily at home or the like.SOLUTION: A waist exercise machine 1 includes a lower leg placing part 4 on which a lower leg of a user U is placed, the user being in a supine posture; and a drive mechanism 6 for at least vertically swinging the lower leg placing part 4 in a reciprocating manner. The drive mechanism 6 swings the lower leg placing part 4 in the reciprocating manner in a horizontal direction and/or a longitudinal direction with vertical reciprocating movement of the lower leg placing part 4.

Description

  The present invention relates to an exercise machine capable of imparting effective pulling or twisting motion to a user's waist.

As an apparatus for applying a pulling force to the user's waist, in other words, an apparatus for pulling the user's lumbar spine, there is one disclosed in Patent Document 1, for example.
The lumbar traction device of Patent Document 1 includes a belt for fixing a pelvis, a locking portion for locking one end of the belt to a seat, a belt winding portion for winding the other end of the belt, and a tension of the belt. A belt tension detecting unit for detecting the belt, attaching the belt to the patient's pelvis, locking one end of the belt to the seat, operating the belt take-up unit to wind up the other end of the belt, The structure is such that the pelvis is securely fixed so that the tension becomes a predetermined value. With this configuration, the lumbar traction device disclosed in Patent Document 1 improves the therapeutic effect by making pelvic fixation more reliable, and saves the labor of the assistant.

JP 2010-12249 A

  However, the lumbar traction device of Patent Document 1 is intended for use in a full-scale treatment facility such as a hospital, is very large, and is difficult for general users to use at home. It was accompanied by. Usually, many people tend to embrace the feeling of unpleasantness in daily life, and a device that can easily eliminate this discomfort at home or the like is desired. The lumbar traction device is not a response.

  In view of the above-described problems, an object of the present invention is to provide a waist exercise machine that allows a user to easily apply a pulling operation or a twisting exercise to the waist at home or the like.

In order to achieve the above object, the present invention takes the following technical means.
That is, the lower back exercise machine according to the present invention has a lower limb placement portion on which a user's lower limb in a supine posture is placed, and a drive mechanism that reciprocates the lower limb placement portion in the vertical direction. It is characterized by.
Further, the lower back exercise machine according to the present invention has a lower limb placement portion on which a user's lower limb placed in a supine posture is placed, and a drive mechanism that reciprocates the lower limb placement portion in the left-right direction. It is characterized by.
Further, the lower back exercise machine according to the present invention has a lower limb placement portion on which a user's lower limb placed in a supine posture is placed, and a drive mechanism that reciprocates the lower limb placement portion in the front-rear direction. It is characterized by.
Further, the lower back exercise machine according to the present invention includes a lower limb placement portion on which a user's lower limb in a supine posture is hung and a popliteum of the lower limb is placed, and the lower limb placement portion at least vertically. And a drive mechanism configured to reciprocally swing the lower limb placement portion in the left-right direction and the front-rear direction as the lower limb placement portion reciprocates in the vertical direction. It is characterized by being.

In the above-described lumbar exercise machine, preferably, the lower limb placement unit has a bifurcated placement rod body, and one of the user's lower limbs is placed on one placement rod body, It is good to be comprised so that a user's other leg may be mounted in the other mounting rod body.
Preferably, the drive mechanism may include a first swing mechanism that reciprocally moves the lower limb placement portion in the left-right direction and the front-rear direction.

  Preferably, the drive mechanism may include a second swinging mechanism that reciprocates the lower limb placement unit in the up-down direction.

  According to the lumbar exercise machine according to the present invention, the user can easily give a traction operation or a twisting exercise to the lumbar region at home or the like.

It is a perspective view of the lower back exercise machine concerning the present invention. It is a left view of the lower back exercise machine according to the present invention. It is a top view of the lower back exercise machine according to the present invention. It is a use mode figure of the lower back exercise machine concerning the present invention. It is sectional drawing of a rocking | swiveling conversion part.

Below, the waist exercise machine 1 of this invention is demonstrated based on a figure. In the description, the left-right direction in FIG. 2 is the rear front direction in the description, and the up-down direction in FIG. 2 is the up-down direction in the description. The left-right direction in FIG. 3 is the left-right direction in the description.
As shown in FIGS. 1 and 2, the lower back exercise machine 1 of the present invention includes a horizontal substrate 2 placed on a floor surface F, and a vertical substrate 3 erected vertically from a rear edge of the horizontal substrate 2. have. A lower limb resting portion 4 is provided so as to protrude forward from the upper portion of the vertical substrate 3.

  As shown in FIG. 3, the lower limb placing portion 4 has a T shape in plan view, and has a pair of bifurcated placing rods 5 (right placing rods) protruding in the left and right directions. 5R, left mounting rod 5L). The lower limb placement unit 4 is reciprocally swung in the vertical direction by a drive mechanism 6. Further, the lower limb placement unit 4 is reciprocally swung in the left-right direction and the front-rear direction by the drive mechanism 6. That is, the drive mechanism 6 swings the lower limb placement unit 4 in the vertical direction and moves the lower limb placement unit 4 in the front-rear and left-right directions.

  That is, as shown by the arrows in FIG. 1 and FIG. 3, when the right mounting bar 5R is tilted downward, the drive mechanism 6 has the left mounting bar 5L tilted upward and the right mounting bar 5R tilted. When tilted upward, the left mounting rod 5L swings so as to tilt downward. At the same time, when the right mounting bar 5R moves to the front side, the left mounting bar 5L moves to the rear side, and when the right mounting bar 5R moves to the rear side, the left mounting bar body 5L moves to the front side and exhibits a swell motion (swell motion). In addition, as shown by the arrows in FIG. 2, the pair of mounting rod bodies 5 that make such a swell movement are reciprocally moved up and down by the drive mechanism 6.

In order to realize the movement of the lower limb placement unit 4 described above, the drive mechanism 6 includes a first swing mechanism 7 that reciprocally swings the lower limb placement unit 4 in the left-right direction and the front-rear direction. In addition, the drive mechanism 6 includes a second swinging mechanism 8 that reciprocates the lower limb placement unit 4 in the vertical direction. Detailed description of the first swing mechanism 7 and the second swing mechanism 8 will be described later.
FIG. 4 shows a usage mode of the lower back exercise machine 1 of the present invention.

  In using the lumbar exercise machine 1 of the present invention to give a traction or twisting motion to the lumbar part, the user U sleeps on the floor F on which the lumbar exercise machine 1 is placed ( Take a supine posture). In addition, the lower limb of the user U is placed on the lower limb placement unit 4 so that the popliteal of the lower limb (the recessed portion behind the knee, the bow) is placed on the upper surface of the lower limb placement unit 4. Multiply. Specifically, the lower leg of the user U is placed on the right placement bar 5, and the left leg is placed on the left placement bar 5.

In addition, the site | part of the leg which mounts on the leg mounting part 4 is not limited to a popliteal. It may be a calf or ankle. It is preferable to place any part from the user's knee to the toe on the lower limb placement unit 4.
Then, when the lower back exercise machine 1 is operated, the pair of left and right mounting rod bodies 5 move by the first swing mechanism 7. This movement is transmitted to the user's U waist through the lower limbs. Since the user U is sleeping on the floor surface F, the upper body exists at a substantially constant position on the floor surface F (a state where the upper body is substantially fixed). Therefore, the undulating movement of the pair of left and right mounting rods 5 acts on the waist and imparts a twisting motion to the waist.

At the same time, the pair of left and right mounting bars 5 reciprocate up and down by the second swing mechanism 8. This vertical reciprocating movement is transmitted to the user's U waist through the lower limbs. Since the user U is sleeping on the floor surface F, the upper body is present at a substantially constant position on the floor surface F, and therefore, the vertical movement of the pair of left and right mounting rod bodies 5 moves to the waist. Acts to give a pulling (waist pulling) motion to the waist.

  As described above, by using the lower back exercise machine 1 of the present invention, a general user U can easily give a pulling operation or a twisting exercise to the lower back at home or the like. The lumbar exercise machine 1 of the present invention is not intended to be used in a full-scale treatment facility such as a hospital like the lumbar traction device of Patent Document 1, and is very compact. It is an optimal device to use at home. By using this apparatus, the user U who tends to feel unpleasant feelings such as dullness can easily eliminate such unpleasant feelings at home or the like.

Various mechanisms can be employed as the drive mechanism 6 of the lower back exercise machine 1 provided in the present invention, but in the present embodiment, a mechanism as shown in FIGS. 1 to 3 and 5 is employed. .
First, as shown in FIG. 1, the lower back exercise machine 1 has a horizontal substrate 2 placed on the floor surface F and a vertical substrate 3 erected vertically from the rear edge of the horizontal substrate 2. Yes.
A first swing mechanism 7 is provided on the upper portion of the vertical substrate 3. That is, the first rotating shaft 10 is provided on the upper side of the vertical substrate 3 so as to face in the left-right direction. Both sides of the first rotating shaft 10 are rotatably supported by the bearing portion 12. With respect to the left bearing portion 12, the first rotating shaft 10 is provided in a penetrating manner, and is connected to a drive motor mechanism 9 provided further to the left of the left bearing portion 12.

  A bracket portion 13 that protrudes forward (on the user side) is provided from a substantially central portion of the first rotating shaft 10. The first rotating shaft 10 is provided so as to pass through the proximal end portion (rear end portion) of the bracket portion 13, and the rotational motion of the first rotating shaft 10 is bracketed to the proximal end portion of the bracket portion 13. A swing conversion part 14 for converting the swing motion of the part 13 is provided. Details of the swing converter 14 will be described later.

  A protruding portion 15 that protrudes upward is provided from the distal end portion of the bracket portion 13, and a bifurcated bar member that protrudes in the left-right direction on the upper surface of the protruding portion 15, that is, the left mounting rod 5 </ b> L and the right mounting rod. The rod body 5R protrudes. The mounting bar 5 has a length that can hook the lower limbs of the user U, and the upper surface of the mounting bar 5 has a soft contact with the lower limbs of the user U. A cushion member 16 is affixed.

The swing conversion portion 14 for giving the left and right and front and rear swings to the bracket portion 13 and thus the pair of left and right mounting rods 5 has the following structure.
That is, as shown in FIG. 5, the swing conversion portion 14 is attached to the first rotating shaft 10 and rotates with the rotation of the first rotating shaft 10, and on the outer side of the rotating boss portion 20. It is comprised with the annular fitting part 21 to fit. The rotating boss portion 20 is disposed at the central portion in the axial center direction of the first rotating shaft 10, and the rotating boss portion 20 has a substantially circular and endless track (cam surface 22) inclined with respect to the rotating shaft. It has become a thing.

  Specifically, the rotating boss portion 20 includes an inner cam member 23 having a substantially cylindrical shape and an endless track (cam surface 22) formed on the outer peripheral surface, and one of the inner cam member 23 having a substantially cylindrical shape. And an outer cam member 24 having an end face facing the end face. The inner and outer cam members 23 and 24 are brought together so that their end faces are in contact with each other, and are screwed together with screws to be combined together. The rotating boss portion 20 is fixed so as not to rotate relative to the first rotating shaft 10.

The cam surface 22 is formed on the outer peripheral surface adjacent to the end surface of the inner cam member 23. The cam surface 22 of the rotating boss portion 20 is inclined in the same direction with respect to the rotation axis. A bearing 25 is slidably fitted to the cam surface 22 of the inner cam member 23, and the annular fitting portion 21 is rotatable.
The annular fitting portion 21 externally fits a bearing 25 fitted on the cam surface 22 of the rotating boss portion 20 and converts the rotation of the rotating boss portion 20 into a swinging motion. The annular fitting part 21 is formed in a substantially annular shape in a side view, and a circular opening having a size of the rotating boss part 20 is opened in a substantially central part. This opening is fitted on the outer peripheral surface of the bearing 25 fitted on the cam surface 22. For this reason, the rotating boss portion 20 and the annular fitting portion 21 are relatively rotatable.

As shown in FIG. 1 and FIG. 2, a restricting portion 28 for restricting the bracket portion 13 from rotating with the rotation of the first rotating shaft 10 is provided on the lower surface of the front end portion of the bracket portion 13. Has been.
The restricting portion 28 has a restricting protrusion 29 formed so as to protrude downward from the lower surface of the front end portion of the bracket portion 13. The tip (lower end) of the restriction projection 29 is a spherical body 30. The spherical body 30 is slidably fitted into a spherical concave portion 37 provided at the tip of a second crank body 36 constituting the second swing mechanism 8 described later. Since the bracket portion 13 is fixed in position by the second crank body 36 (movable up and down, front and rear, and left and right only within a predetermined range), even if the first rotating shaft 10 rotates, the bracket portion 13 There is no need to follow the rotating shaft 10 together.

  On the other hand, as shown in FIGS. 1 and 2, the second rotating shaft 32 is provided at a substantially central portion in the front-rear direction on the horizontal substrate 2 constituting the lower back exercise machine 1 and corresponding to a position directly below the bracket portion 13. Is provided to face in the left-right direction. Both sides of the second rotating shaft 32 are rotatably supported by the bearing portion 12. With respect to the left bearing portion 12, a second rotating shaft 32 is provided in a penetrating manner and is connected to a drive motor mechanism 9 provided further to the left of the left bearing portion 12.

  A projecting piece that projects in a direction orthogonal to the axis of the second rotating shaft 32, in other words, a crank throw 34 is provided at a substantially central portion of the second rotating shaft 32. A pair of left and right crank throws 34 are provided at predetermined intervals, and a base end portion of the crank throw 34 is fixed so as to rotate integrally with the second rotary shaft 32. A lower end portion of a first crank body 35 (connecting rod) is attached to the front end portion of the crank throw 34 so as to be rotatable around the left and right axial centers and is in the shape of a long bar and facing in the vertical direction. The first crank body 35 is composed of a single rod body, and the lower end portion thereof is disposed so as to be sandwiched between a pair of left and right crank throws 34.

  A rod-like second crank body 36 shorter than the first crank body 35 is attached to the upper end portion of the first crank body 35. The lower end portion of the second crank body 36 is connected to the upper end portion of the first crank body 35 so as to be rotatable around the front-rear axis. The spherical recess 37 described above is formed on the upper surface (upper end) of the second crank body 36, and a restriction projection 29 formed so as to protrude from the lower end of the tip of the bracket portion 13 is formed in the spherical recess 37. It is slidably fitted to form a ball joint mechanism.

  As shown in FIG. 1, a drive motor mechanism 9 is provided on the left side of the lower back exercise machine 1 in order to give a rotational drive force to the first rotary shaft 10 and the second rotary shaft 32 described above. The drive motor mechanism 9 includes a single electric motor 40, and this electric motor 40 is disposed so as to be inclined from the upper part of the horizontal board 2 toward the front part of the vertical board 3 (FIG. 2). reference). The electric motor 40 is provided with a drive rotation shaft protruding from the upper end side and the lower end side thereof, and the upper drive rotation shaft is connected to the first rotation shaft 10 via a worm gear mechanism. . The lower drive rotation shaft is connected to the second rotation shaft 32 via a worm gear mechanism.

  Since it has the configuration described above, when the electric motor 40 of the drive motor mechanism 9 is rotated, the rotational driving force is transmitted to the first rotary shaft 10 via the worm gear mechanism. The rotational driving force of the first rotating shaft 10 is converted by the swing conversion portion 14 into swing motion (mainly reciprocating swing motion in the left and right and front and rear directions) of the bracket portion 13, in other words, the mounting rod body 5. . At the same time, the rotational driving force of the electric motor 40 is transmitted to the second rotating shaft 32 via the worm gear mechanism. The rotational driving force of the second rotating shaft 32 causes the crank throw 34 to rotate about the left and right axis, and accordingly, the first crank body 35 and the second crank body 36 are reciprocated in the vertical direction. The amplitude of the reciprocating movement is about twice the length of the crank throw 34. This up-and-down reciprocating movement is transmitted to the bracket portion 13 via the restricting portion 28 and converted into a swinging motion (mainly a vertical reciprocating swinging motion) of the lower limb resting portion 4.

The second crank body 36 is swingable about the longitudinal axis with respect to the first crank body 35, and the bracket portion 13 and the second crank body 36 are connected by a ball joint mechanism that is pivotably swingable. Therefore, the up / down swing motion generated by the crank throw 34 does not interfere with the swing motion generated by the swing conversion unit 14, and both swing motions cooperate with each other. In addition, a complicated reciprocating motion is realized in which the lower limb placement unit 4 (the right placement rod 5R and the left placement rod 5L) is mixed with up / down, left / right, and forward / backward swing.

  The movement of the lower limb placement unit 4, in other words, the undulating movement of the pair of left and right placement bars 5 is transmitted to the waist of the user U through the lower limbs. Since the user U is sleeping on the floor surface F, the upper body is present at a substantially constant position on the floor surface F. Therefore, the undulating movement of the pair of left and right mounting rods 5 acts on the waist, and gives a twisting motion and a pulling motion to the waist. Towing and twisting movements can be performed.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. In particular, in the embodiment disclosed this time, matters that are not explicitly disclosed, such as operating conditions and operating procedures, various parameters, dimensions, weights, volumes, and the like of a component deviate from a range that is normally performed by those skilled in the art. Instead, values that can be easily assumed by those skilled in the art are employed.

DESCRIPTION OF SYMBOLS 1 Lumbar exercise machine 2 Horizontal board | substrate 3 Vertical board | substrate 4 Lower leg mounting part 5 Mounting rod body 5R Right mounting rod body 5L Left mounting rod body 6 Drive mechanism 7 First swing mechanism 8 Second swing mechanism 9 Drive motor mechanism 10 First rotating shaft 12 Bearing portion 13 Bracket portion 14 Oscillating conversion portion 15 Protruding portion 16 Cushion member 20 Rotating boss portion 21 Annular fitting portion 22 Cam surface 23 Inner cam member 24 Outer cam member 25 Bearing 28 Restricting portion 29 Restriction protrusion 30 Spherical body 32 2nd rotating shaft 34 Crank throw 35 1st crank body 36 2nd crank body 37 Spherical recessed part 40 Electric motor F Floor surface
U user

Claims (7)

  A lumbar exercise machine comprising: a lower limb placement portion on which a user's lower limb placed in a supine posture is placed; and a drive mechanism for reciprocating the lower limb placement portion in the vertical direction.   A lumbar exercise machine comprising: a lower limb placement portion on which a user's lower limb placed in a supine posture is placed; and a drive mechanism that reciprocates the lower limb placement portion in the left-right direction.   A lumbar exercise machine comprising: a lower limb placement portion on which a user's lower limb placed in a supine posture is placed; and a drive mechanism for reciprocating the lower limb placement portion in the front-rear direction. A lower limb placement unit on which a user's lower limb in a supine posture is hung and a popliteal cavity of the lower limb is placed, and a drive mechanism that reciprocally swings the lower limb placement unit at least in the vertical direction ,
The said exercise | movement mechanism is comprised so that a lower limbs mounting part may be reciprocally rocked in the left-right direction and the front-back direction as a lower limbs mounting part reciprocates to an up-down direction, The waist exercise machine characterized by the above-mentioned.   The lower limb placement unit has a bifurcated placement rod body, one of the user's lower limbs is placed on one placement rod body, and the other placement rod body of the user The lumbar exercise machine according to any one of claims 1 to 4, wherein the lower limb is placed.   The lumbar exercise machine according to claim 4 or 5, wherein the driving mechanism includes a first swing mechanism that reciprocally moves the lower limb placement portion in the left-right direction and the front-rear direction.   The lumbar exercise machine according to claim 5, wherein the drive mechanism includes a second swinging mechanism that reciprocates the lower limb placement unit in the vertical direction.

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