JP2016106998A - Seated type exercise apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seated type exercise apparatus which allows a user to effectively do a twisting exercise.SOLUTION: A seated type exercise apparatus 1 includes: a seat part 3 on which a user can sit; a swing mechanism 4 which makes the seat part 3 swing in the lateral direction; a drive mechanism 5 which drives the swing mechanism 4; and a placing base 9 on which the swing mechanism 4 and the drive mechanism 5 are placed. In the seated type exercise apparatus 1, the swing mechanism 4 includes: a rotation shaft 13 which extends in the lateral direction and is rotated by the driving force of the drive mechanism 5; and a single conversion part 15 which converts the rotation of the rotation shaft 13 to the lateral swing movement. It is preferable that the conversion part 15 is disposed on the center side of the lateral direction of the rotation shaft 13.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a seating type exercise device that imparts exercise such as hip twisting to a user sitting on a seat.

Conventionally, to prevent dieting and back pain, the user swings the seat while the user is seated on the seat, and the user twists his / her waist to balance the swinging seat. A sitting type exercise device (balance training device) has been developed that imparts exercise such as hip twisting to the user by performing exercises. One example is an apparatus disclosed in Patent Document 1.
The seat type exercise device disclosed in Patent Document 1 includes a swing mechanism that swings the seat portion in the left-right direction below the seat portion on which the user is seated. The swing mechanism includes a rotating shaft that rotates with the driving force of the drive mechanism, and a support arm member that converts the rotation of the rotating shaft into a swinging motion in the left-right direction and transmits the swing motion to the seat portion.

JP2013-123441A

In the seated exercise device of Patent Document 1, the above-described rotation shaft is arranged at the center of the device so as to face in the left-right direction. And about this rotating shaft, the two above-mentioned support arm members are provided in total, one each on the left-right pair, ie, the left side and the right side.
Such a support structure of the seat portion of Patent Document 1 brings about an effect that the seat portion can be stably supported at a plurality of support points, but tends to limit the swing range of the seat portion. In other words, because the support arm members interfere with each other or the support arm members interfere with the mounting table, the swing range of the seat portion along the left-right direction and the up-down direction is greatly limited. is there.

  The present invention has been made in view of the above circumstances, and can increase the swing range of the seat along the left-right direction and the up-down direction, and performs an effective swing motion for the user. It is an object of the present invention to provide a seating type exercise device that can be used.

In order to achieve the above object, the present invention takes the following technical means.
That is, the seating type exercise device according to the present invention includes a seat portion on which a user can sit, a swing mechanism that swings the seat portion at least in the left-right direction, a drive mechanism that drives the swing mechanism, and the swing mechanism. A seating-type exercise device including a moving table and a driving table on which a driving mechanism is installed, wherein the swinging mechanism extends in the left-right direction and rotates with a driving force of the driving mechanism; and the rotation And a single converter that converts the rotation of the shaft into a swinging motion in the left-right direction.

Preferably, the conversion unit may be disposed at a central portion in the left-right direction of the rotation shaft.
Preferably, the conversion unit is attached to the rotating shaft so as to be integrally rotatable, and has a rotating boss portion having an inclined surface inclined with respect to an axis of the rotating shaft on an outer peripheral surface, and an inclined surface of the rotating boss portion. And an annular fitting part that supports the seat part from below and a rotation restricting part that restricts the annular fitting part from rotating integrally with the rotation of the rotating shaft. It is good to have.

Preferably, in the mounting table, a long groove is formed along the left-right direction so that a part of the rotation restriction portion can be inserted and the rotation restriction portion can be guided along the left-right direction. Good.
Preferably, at least a peripheral edge portion of the seat portion is formed of an elastic body.

The seating type exercise device according to the present invention can take a large swing range of the seat along the left and right direction and the up and down direction, and allows the user to perform an effective torsional movement.

It is a whole perspective view which shows operation | movement of a seating type exercise device. It is a perspective view which shows the internal structure of a seating type exercise device. It is the perspective view which showed the structure of the rocking | fluctuation mechanism of a seating type exercise device. It is sectional drawing which cut | disconnected the rocking | fluctuation mechanism of the seating type exercise apparatus along the left-right direction. It is the bottom view which looked at the rocking | fluctuation mechanism of the seating type exercise device from the bottom face side.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 5, the seating type exercise device 1 according to the present invention is installed on a substantially flat and stable surface such as a seat surface of a chair, and is twisted with respect to the waist and abdomen of the user. It gives action. A user whose posture is broken by the twisting motion applied by the sitting type exercise device 1 tries to maintain or restore his / her posture, so that the muscles around the waist and the inner muscle are trained, and the diet effect and The effect of preventing low back pain can be obtained.

  In the description of the present embodiment, the left-right direction shown in FIGS. 1 to 5 is referred to as the left-right direction when the apparatus 1 is described, and the front-rear direction shown in FIGS. This is called the front-rear direction. Moreover, the up-down direction shown by FIGS. 1-5 is called the up-down direction at the time of describing the apparatus 1. FIG. These directions used for the description of the device 1 are all the same as the front-rear, left-right, and up-down directions seen from the user seated on the seated exercise device 1.

  As shown in FIG. 1, a seating type exercise device 1 of the present invention has a casing part 2 and a seat part 3 arranged above the casing part 2. As shown in FIGS. 2 and 3, the casing portion 2 contains a swing mechanism 4 that swings the seat portion 3 and a drive mechanism 5 that drives the swing mechanism 4. The seating type exercise device 1 twists the user seated on the seat portion 3 by swinging the seat portion 3 along the left-right direction and the up-down direction by the operation of the drive mechanism 5 and the swing mechanism 4. It is a configuration to grant.

  As shown in FIG. 1, the casing portion 2 is a short box-shaped member that opens upward, and is formed in a rectangular shape with rounded corners in plan view. The casing portion 2 includes a flat lower casing portion 6 and a bank-shaped upper casing portion 7 provided along the outer edge of the lower casing portion 6. By fitting the upper casing portion 7 into the lower casing portion 6 from above, a space (a space opened upward) in which the swing mechanism 4 (details will be described later) can be formed inside the casing portion 2. It has come to be.

A recess 8 (storage recess) is formed in the center of the lower casing 6, and a mounting table 9 on which the swing mechanism 4 is placed is fitted into the recess 8 from above. Further, a disc-like leg portion 10 is attached to the lower surface side of the lower casing portion 6 so as to protrude downward.
The seat portion 3 is a plate member formed to have a rectangular shape with rounded corners in plan view, and is formed in a size that allows a user to sit down. In addition, the seat portion 3 is formed in a curved shape so that the center side is positioned below the left end side and the right end side, and the user inserts his / her waist into the recessed center side. The seat 3 fits snugly into the buttocks.

  Further, a skirt portion 11 formed in an annular shape smaller than the seat portion 3 is provided along the edge of the seat portion 3 on the lower surface of the seat portion 3. The skirt 11 is formed in a skirt shape that hangs downward using an elastic material such as rubber or elastomer, and covers the drive portion (drive mechanism 5) provided inside the casing portion 2 from the outside ( The user does not mistakenly insert a fingertip or a tip of the foot into the driving portion while the seat 3 is swinging.

Furthermore, the seat portion 3 has a composite structure. That is, an upper seat body 3A that directly contacts a user's buttocks seated on the seat 3 is provided above the rectangular seat 3 (seat lower body). The seat upper body 3 </ b> A has a larger area than the seat 3, and is superimposed on the upper surface of the seat 3. That is, this seat part upper body 3A protrudes further from the outer edge of the seat part 3 toward the outer peripheral side (diameter outer side). And 3 A of seat part upper bodies are formed using elastic materials, such as rubber | gum and an elastomer, so that the user who sits down can provide soft seating comfort. If such a seat part upper body 3A is provided, even if the user accidentally inserts a fingertip or a tip of the foot under the seat part 3 while the seat part 3 is swinging, the seat part Since the upper body 3A is bent and deformed, the fingertip or the tip of the foot sandwiched between the seat 3 and the floor or between the seat 3 and the mounting table 9 is not damaged.

In addition, the seat part 3 does not need to be a composite structure, and the seat part 3 may be an integral object. Even in that case, it is preferable that at least the peripheral portion of the seat portion 3 is formed of an elastic body.
Further, as shown in FIGS. 2 and 3, a through hole 12 that penetrates the seat portion 3 in the vertical direction is formed on the upper surface on the right side of the seat portion 3. The through-hole 12 is formed on a lower surface of the seat portion 3 at a position corresponding to a gear 14 attached to a rotating shaft 13 described later, and the seat portion 3 is inclined rightward and the right end side of the seat portion 3 is lowered. When this occurs, the gear 14 and the seat 3 are not in contact with each other.

A swing mechanism 4 that supports the seat 3 from below and swings the seat 3 in the left-right direction is provided below the seat 3. The swing mechanism 4 is placed on a placing base 9 housed in the casing portion 2 and is disposed on the center side of the lower casing portion 6 covered with the hem portion 11 described above.
As shown in FIGS. 2 and 3, the swing mechanism 4 includes a rotary shaft 13 that is installed so as to face in the left-right direction and is driven to rotate by the drive mechanism 5, and the rotation of the rotary shaft 13 swings in the left-right direction. And a conversion unit 15 for converting into motion.

Next, the mounting table 9, the rotating shaft 13, the conversion unit 15, and the drive mechanism 5 that constitute the seated exercise device 1 of the present invention will be described with reference to the drawings.
The mounting table 9 is a square plate (plate body) with rounded corners in plan view, and is fitted into the housing recess 8 of the lower casing portion 6 from above. On both the left and right sides of the upper surface of the mounting table 9, support tables 16L and 16R are provided so as to protrude upward in order to support the rotating shaft 13 from below. Moreover, the recessed part 8 which accommodates the bearing 17 which rotatably supports the rotating shaft 13 is formed in the upper surface of each support stand 16L and 16R.

  A long groove 20 is formed between the left support base 16L and the right support base 16R of the mounting table 9 so that a part of a rotation restricting portion 19 of an annular fitting portion 18 to be described later can be inserted. The long groove 20 is a groove (hole) penetrating the mounting table 9 in the vertical direction, and is formed along the left-right direction. That is, if a part of the rotation restricting portion 19 is inserted into the long groove 20, the rotation restricting portion 19 can be guided along the left-right direction while restricting movement in the front-rear direction.

The long groove 20 will be described again in detail later together with the description of the rotation restricting portion 19 when the rotation restricting portion 19 is described later.
The rotating shaft 13 is a long round bar-like member installed below the above-described seat portion 3 so as to face in the left-right direction, and is pivotally supported using a bearing 17 accommodated in the concave portion 8 of the above-described support base 16. Has been. The bearings 17 are provided at both ends in the left-right direction of the rotary shaft 13, and by using these bearings 17, the rotary shaft 13 is rotatable around an axis that faces the left-right direction.

Further, a gear 14 capable of transmitting a rotational driving force generated by the drive mechanism 5 (drive motor 21) is provided on the right side of the center (rotary boss portion 23) of the rotary shaft 13, and is provided by the drive mechanism 5 described later. The rotary shaft 13 can be driven to rotate about an axis that faces in the left-right direction.
The drive mechanism 5 is arranged so that the drive shaft is directed in the left-right direction, the drive mechanism 5 is arranged in a direction orthogonal to the axis of the drive motor 21, and the rotational driving force of the drive motor 21 is transmitted. Power transmission shaft 22. The power transmission shaft 22 is arranged so as to be orthogonal to the rotation shaft 13 whose axis is directed in the left-right direction, and gears provided on the drive shaft, the power transmission shaft 22 and the rotation shaft 13 are provided. By meshing, the rotational driving force of the driving motor 21 can be transmitted from the driving shaft to the rotating shaft 13 via the power transmission shaft 22.

The converting unit 15 described above converts the rotational driving force of the rotating shaft 13 into a force that swings in the left-right direction by combining the rotating boss portion 23, the annular fitting portion 18, and the rotation restricting portion 19. Is. And the seating type exercise device 1 of the present invention has the point that the above-described conversion unit 15 is provided in a single (single) on the rotating shaft 13 and is provided in the central portion in the left-right direction on the rotating shaft 13. It is a feature.

Next, the conversion unit 15 that is a feature of the seated exercise apparatus 1 of the present invention will be described in detail.
The converter 15 swings the seat 3 along the left-right direction by converting the rotational driving force of the rotary shaft 13 into a force along the left-right direction. Specifically, the conversion unit 15 is attached to the rotary shaft 13 so as to be integrally rotatable, and has a rotating boss portion 23 having an inclined surface 24 inclined with respect to the axis of the rotating shaft 13 on the outer peripheral surface, and the rotating boss portion 23. An annular fitting portion 18 that externally fits on the inclined surface 24 of the shaft and supports the seat portion 3 from below, and the annular fitting portion 18 is restricted from rotating integrally with the rotation of the rotary shaft 13. And a rotation restricting portion 19 that performs rotation.

  As shown in FIG. 4, the rotating boss portion 23 is a disk-shaped member attached to the rotating shaft 13 described above, and is screwed to the rotating shaft 13 using screws or the like. It is freely rotatable around an axis that faces in the left-right direction. On the outer peripheral surface of the rotating boss portion 23, an inclined surface 24 (inclined cam surface) is formed that circulates around an axis extending in a direction intersecting with the axis of the rotating shaft 13. An annular fitting portion 18 is fitted on the outside of the inclined surface 24 via a bearing 26.

  The annular fitting portion 18 is a member that is provided below the seat portion 3 and supports the seat portion 3 from below. Specifically, the annular fitting portion 18 is a plate-like member formed to be substantially U-shaped when viewed from the left (right), and is fixed to the lower surface of the seat portion 3. Yes. In addition, a circular opening 25 into which the rotary boss 23 can be inserted is located at the center of the tip of the annular fitting portion 18 (the side far from the seat portion 3). It is formed to penetrate. The above-described bearing 26 is fixed to the inner peripheral surface of the opening 25 in a fitting manner.

The rotation restricting portion 19 is a portion formed so as to protrude downward from the lower portion of the annular fitting portion 18. The distal end side of the rotation restricting portion 19 can be inserted into the long groove 20 described above, and is guided by the long groove 20 formed along the left-right direction so as to allow swinging along the left-right direction. It is possible to regulate the movement along.
Specifically, as shown in FIG. 5, the above-described long groove 20 is a groove that opens in an oval shape such that the opening width in the left-right direction is about twice as long as the opening width in the front-rear direction. is there. Further, the opening edges on both the left and right ends of the long groove 20 are formed in an arc shape having a radius of curvature slightly larger than the outer diameter of the rotation restricting portion 19 inserted into the long groove 20, and the outer periphery of the rotation restricting portion 19. Since the surface and the opening edge of the long groove 20 are in surface contact over a wide range of a half circumference, the surface pressure applied to the rotation restricting portion 19 and the long groove 20 is reduced, and the rotation restricting portion 19 and the long groove 20 due to sliding are reduced. It prevents wear.

By the way, the seating type exercise apparatus 1 of the present invention has a single (single) conversion unit 15 provided on the rotary shaft 13 and the conversion unit 15 described above at the central portion in the left-right direction of the rotary shaft 13. It is characterized by being deployed.
In other words, the seating type exercise device 1 of the present invention has only one rotating shaft 13, and the converting portion 15 (the rotating boss portion 23 and the rotating boss portion 23 are externally attached to the one rotating shaft 13. Only one annular fitting portion 18) to be fitted is provided, and the swing portion along the left-right direction and the up-down direction of the seat portion 3 is all supported by one conversion portion 15.

  In contrast to the seating type exercise device 1 of the present invention, the conventional exercise device has a plurality of annular fitting portions (conversion portions). By providing a plurality of annular fitting portions on the rotating shaft in this way, the annular fitting portions can interfere with each other when the seat portion is swung, or the annular fitting portions can interfere with other members. In order to avoid interference, the swinging range of the seat portion must be limited to a small size.

Therefore, in the seating type exercise device 1 of the present invention, a single rotating boss portion 23 that constitutes the converting portion 15 and an annular fitting portion 18 that is externally fitted to the rotating boss portion 23 are arranged on the center side of the rotating shaft 13. The seat portion 3 is supported by a single conversion portion 15 provided on the center side.
In this way, even if the seat portion 3 is swung largely in the left-right direction or the up-down direction around the single conversion portion 15 provided on the center side, the annular fitting portion 18 interferes with other members. Such an inconvenience is less likely to occur, and the user can be given more effective exercise by swinging the seat 3 greatly.

  If a sufficient interference suppression effect cannot be obtained simply by providing a single conversion part 15 or providing the conversion part 15 on the center side, the gear 14 or the like such as the through-hole 12 provided in the seat part 3 described above. It is also possible to avoid the interference by reducing the thickness of the portion in contact with such a member that easily interferes or providing a hole. By doing so, the seat portion 3 can be disposed close to the swinging mechanism 4 in the vertical direction, and the seated exercise device 1 can be made thin and compact.

Moreover, when the conversion part 15 is single, since the load added to the seat part 3 will concentrate on one conversion part 15, you may provide reinforcement members like the reinforcement rib 27 (refer FIG. 4) in the conversion part 15. FIG.
Next, a method for swinging the seat portion 3 in the left-right direction using the swing mechanism 4 described above, in other words, a motion method using the seated exercise device 1 of the present invention will be described.
That is, when the rotary shaft 13 is rotated around the axis facing the left-right direction using the rotational driving force generated using the drive mechanism 5 described above, the rotary boss portion 23 attached to the rotary shaft 13 so as to rotate integrally is also rotated. To do. At this time, the inclined surface 24 formed on the outer peripheral surface of the rotating boss portion 23 is formed so as to follow a trajectory that circulates around an axis that faces a direction intersecting the axis of the rotating shaft 13. The annular fitting portion 18 that slides along the shaft 24 also tries to go around the rotation shaft 13 while drawing a trajectory that meanders around the axis of the rotation shaft 13.

  However, the above-described rotation restricting portion 19 is formed in a downward projecting shape below the annular fitting portion 18, and the lower end of the rotation restricting portion 19 is inserted into the long groove 20 of the mounting table 9. The annular fitting portion 18 does not rotate in the front-rear direction integrally with the rotating boss portion 23. However, on the other hand, since the rotation restricting portion 19 is movable in the left-right direction along the long groove 20, swinging along the left-right direction of the annular fitting portion 18 is restricted by the rotation restricting portion 19. It will never be done. Therefore, when the rotating shaft 13 rotates, the annular fitting portion 18 swings in the left-right direction in a state where the rotation along the front-rear direction is restricted, and the seat portion provided on the upper portion of the annular fitting portion 18. 3 swings along the left-right direction.

Thus, in the structure provided with a single conversion portion 15 (annular fitting portion 18) on the center side of the rotation shaft 13, even if the seat portion 3 is swung largely in the left-right direction or the up-down direction around the conversion portion 15, Problems such as the annular fitting part 18 interfering with other members are less likely to occur, and the user can perform an effective twisting motion by swinging the seat part 3 greatly.
The seating type exercise device 1 of the present invention is not limited to the above embodiment. In addition, in the embodiment disclosed this time, matters that are not explicitly described, for example, operating conditions and operating conditions, dimensions and weights of components, do not deviate from the range normally practiced by those skilled in the art. If it is a trader, items that can be easily assumed are adopted.

DESCRIPTION OF SYMBOLS 1 Seat type exercise device 2 Casing part 3 Seat part 3A Seat part upper body 4 Swing mechanism 5 Drive mechanism 6 Lower casing part 7 Upper casing part 8 Recessed part (accommodating recessed part)
DESCRIPTION OF SYMBOLS 9 Mounting base 10 Leg part 11 Bottom part 12 Through-hole 13 Rotating shaft 14 Gear 15 Conversion part 16L Left side support base 16R Right side support base 17 Bearing 18 Annular fitting part 19 Turning control part 20 Long groove 21 Drive motor 22 Power transmission Shaft 23 Rotating boss 24 Inclined surface 25 Opening 26 Bearing 27 Reinforcing rib

Claims (5)

A seat portion on which a user can sit, a swing mechanism that swings the seat portion in at least the left-right direction, a drive mechanism that drives the swing mechanism, and a mount in which the swing mechanism and the drive mechanism are installed. A sitting type exercise device comprising a table,
The swing mechanism includes a rotation shaft that extends in the left-right direction and rotates with the driving force of the drive mechanism, and a single conversion unit that converts the rotation of the rotation shaft into a swing motion in the left-right direction. A seating type exercise device characterized by the above.   The seating type exercise apparatus according to claim 1, wherein the conversion unit is disposed at a central portion of the rotation shaft in the left-right direction. The converter is
A rotating boss portion that is attached to the rotating shaft so as to be integrally rotatable, and has an inclined surface that is inclined with respect to the axis of the rotating shaft on the outer peripheral surface;
An annular fitting portion that is rotatably fitted to the inclined surface of the rotating boss portion and supports the seat portion from below.
A rotation restricting portion for restricting the annular fitting portion from rotating integrally with the rotation of the rotation shaft;
The sitting type exercise device according to claim 1 or 2, wherein   The mounting table is characterized in that a long groove is formed along the left-right direction so that a part of the rotation restriction portion can be inserted and the rotation restriction portion can be guided along the left-right direction. The sitting type exercise device according to claim 3.   The seating type exercise device according to claim 1, wherein at least a peripheral edge portion of the seat portion is formed of an elastic body.

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