JP2014124445A - Exercise assisting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an exercise assisting device which has a simple structure, can increase an effect of an exercise of a lumbar part, and is easily used in water.SOLUTION: An exercise assisting device 1 has a body part 10 including a seat surface where a user is seated and a spherical bottom surface 3. The body part 10 has a hollow space in the inside and a plurality of communicating holes 16 that make the hollow space communicate with the outside. Bulged parts 20, 21 bulged to follow at least a part of shapes of hips and a crotch part of the user are formed on the seat surface or the periphery. An anti-slip part 4 for suppressing a slip on a floor surface that is brought into contact with the exercise assisting device in water is provided on the bottom surface 3. The body part 10 is configured to be able to tilt in all directions while the anti-slip part 4 is brought into contact with the floor surface.

Description

  The present invention relates to an exercise aid that can be used in a state of being submerged in water.

  There are various types of exercises performed for the purpose of beauty and health maintenance, and various assisting tools for improving the effect of exercises have been proposed depending on the type of exercise. For example, Patent Document 1 proposes an exercise aid for stretching the waist and lower body in water. This exercise assisting tool includes a base portion and a seat held so as to be rotatable with respect to the base portion.

JP 2006-218176 A

  However, the exercise assisting tool described in Patent Document 1 has a complicated structure for enabling the seat part and the base part to rotate with respect to each other. Therefore, it has a structure with many irregularities, and it takes time and effort to wipe off or clean the moisture adhering to the exercise assisting device, which is inconvenient for the user. Therefore, there has been a demand for a simpler structure and easier care.

  In addition, there has been a demand for the development of an exercise aid that can be easily handled even when used in water such as in a bath or a bathtub, and that can more effectively perform a swinging motion of the waist.

  The present invention has been made in view of the above background, and is intended to provide an exercise assisting tool that is simple in structure, can improve the exercise effect of the lower back, and is easy to use in water.

One aspect of the present invention is an exercise aid that can be used while submerged in water,
A main body having a seating surface on which a user is seated and a substantially spherical bottom surface;
The main body portion has a plurality of communication holes that have a cavity therein and communicate the cavity with the outside.
A raised portion that is raised along at least a part of the shape of the user's buttocks or crotch is formed on or around the seat surface,
The bottom surface is provided with a non-slip portion that suppresses slipping between the floor and the floor that contacts in water,
The body portion is an exercise assisting device configured to be tiltable in all directions in a state where the anti-slip portion is in contact with the floor surface.

  The exercise assisting tool includes the substantially spherical bottom surface. Therefore, the seating surface can be tilted in all directions while the bottom surface is in contact with the floor surface by moving the waist with the foot worn on the floor as the base point while the user is seated. The anti-slip portion is provided on the bottom surface. Therefore, the exercise assistance tool can be tilted in water without the exercise assistance tool and the floor surface slipping. With these operational effects, the exercise assisting device can reliably tilt in water.

  The main body portion is configured to be tiltable in all directions in a state where the anti-slip portion is in contact with the floor surface. Therefore, the user can incline the seat surface in all directions, and can exercise the muscles around the waist in a balanced manner by the tilting operation of the seat surface. As a result, the exercise assisting device can further improve the effect of exercise.

  Further, the raised portion is formed on or around the seat surface. Therefore, when the user exercises the lumbar region, the bulge part is likely to restrict the displacement of the pelvis part from the seating surface by the raised part. As a result, when tilting the exercise assisting tool, the user's buttocks are less likely to be displaced from the seat surface even in water, and the angle between the pelvis and the waist can be sufficiently increased during exercise of the waist. As a result, the exercise assisting device can further improve the effect of exercise.

  Thus, the exercise assisting tool can be used in water due to the shape of the bottom surface, the anti-slip portion, the inclination direction and the inclination angle of the seat surface, the action effect of each of the raised portions, or the synergistic effect thereof, The exercise effect of the lower back can be further improved.

  Further, the inside of the main body portion is hollow, and the main body portion has the communication hole. Therefore, it is possible to easily drain water from the main body. As a result, the exercise assisting tool can be easily cleaned after use, and is easy for the user to use.

  Moreover, the said seat surface and the said bottom face are provided in the said main-body part. Therefore, the exercise assisting tool does not need to be provided with a movable part for tilting the seat surface. As a result, the exercise assisting device has a simple structure.

  As described above, according to the above aspect, it is possible to provide an exercise aid that has a simple structure, can improve the exercise effect of the lower back, and is easy to use in water.

Explanatory drawing which shows the state which tilted the exercise assistance tool in Example 1. FIG. The perspective view of the exercise assistance tool in Example 1. FIG. FIG. 3 is a front view of the mobility aid in the first embodiment. The seat surface figure of the exercise assistance tool in Example 1. FIG. The bottom view of the exercise assistance tool in Example 1. FIG. FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 4. FIG. 7 is a sectional view taken along line VII-VII in FIG. 4. FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 5. FIG. 3 is a side view of the anti-slip member in the first embodiment. The bottom view of the anti-slip | skid member in Example 1. FIG. In Example 2, the bottom view of the anti-slip | skid member which gave the embossing to the bottom face side. FIG. 12 is a cross-sectional view taken along line XII-XII in FIG. 11. The bottom view of the anti-slip | skid member which has arrange | positioned the column-shaped convex part in Example 2 in the polka dot pattern. The bottom view of the anti-slip | skid member which has arrange | positioned many elliptical columnar convex parts in Example 2. FIG. The bottom view of the anti-slip | skid member which has arrange | positioned the square pyramid-shaped recessed part in the grid | lattice form in Example 3. FIG. The bottom view of the anti-slip | skid member which has arrange | positioned the annular recessed part in Example 3 in concentric form.

  In the exercise assisting device, the main body portion needs to be formed of a material that does not substantially deform the bottom surface when a user is seated on the seating surface. Thereby, the tilting operation using the shape of the bottom surface portion can be performed smoothly. As the material of the main body, for example, various hard plastic materials such as ABS resin can be adopted.

  The substantially spherical shape indicating the shape of the bottom surface is not limited to a perfect spherical surface defined in terms of geometry, but is a concept including a shape that is recognized as a spherical shape as a general sense. That is, the bottom surface may have a portion with a different curvature as long as the above-described tilting operation in all directions can be smoothly performed. For example, the bottom surface does not have a uniform radius of curvature, and goes in the direction of the edge and decreases the radius of curvature, or goes in the direction of the edge and increases the radius of curvature, or rotationally symmetric with respect to the central axis. Instead, the radius of curvature in the directions orthogonal to each other may be set to different values.

  In addition, as described above, the protruding portion adopts various modes without limiting the shape, position, number, etc., as long as the displacement of the pelvis from the seating surface can be regulated in shape. Is possible.

  For example, as one aspect of the raised portion, a forward raised portion that is raised from the periphery thereof may be provided at least in the front center portion of the seating surface (claim 2). In this case, when the exercise assisting tool is tilted, the forward bulge portion comes into contact with the crotch portion of the user, thereby restricting displacement of the pelvis from the seat surface. Therefore, the exercise assisting device can further improve the effect of exercise.

  Moreover, as another aspect of the raised portion, at least both side edges of the seating surface may be provided with side raised portions that are raised from the inside thereof (Claim 3). In this case, when the exercise assisting device is tilted, the pair of laterally raised portions abuts on the sides of the user's pelvis, thereby restricting the displacement of the pelvis from the seating surface. The Therefore, the exercise assisting device can further improve the effect of exercise.

  Moreover, it is preferable that the said communicating hole is provided at least in the said anti-slip | skid part or its vicinity (Claim 4). In this case, when the contact position between the non-slip portion and the floor surface changes with the tilting movement of the exercise assisting tool, water existing between the non-slip portion and the floor surface is communicated. It becomes easy to distribute | circulate to a hole and it becomes easy to ensure the flow path of water. Therefore, the exercise assisting tool can easily reduce the resistance of water applied to the exercise assisting tool during the tilting operation. In this case, since it becomes easy to reduce the amount of water existing between the anti-slip portion and the floor surface, the slip between the anti-slip portion and the floor surface caused by water can be more reliably prevented. be able to.

  Further, in this case, for example, after using the exercise assisting device, the moisture in the cavity can be quickly discharged from the communication hole by placing the anti-slip portion downward on the floor surface. It becomes possible. As a result, the exercise assisting tool is easier to use for the user.

  The anti-slip portion may include an anti-slip member disposed on the bottom surface, and the anti-slip member may have a number of convex portions protruding from the surface. That is, the anti-slip portion may be formed integrally with the main body portion, but the anti-slip member formed separately from the main body portion as described above is arranged on the bottom surface. You can also.

  In addition, by disposing the convex portion on the anti-slip member, the convex portion and the floor surface come into contact with each other when using the exercise assisting tool, and water can flow through the gap between the convex portions. Therefore, when the anti-slip member moves with the movement of the waist, the water between the convex part and the floor surface escapes to the gap between the convex parts, so that the anti-slip member is separated from the convex part. The floor surface can be surely brought into contact with each other, and slipping with the floor surface can be prevented more reliably. As a result, the exercise assisting device improves the exercise effect of the lower back and is easy to use.

  The anti-slip member may be made of an elastomer (claim 6). In this case, the frictional force between the anti-slip member and the floor surface is increased, and the slip with the floor surface can be more reliably suppressed as described above. As a result, the exercise assisting device improves the exercise effect of the lower back and is easy to use. As the elastomer, for example, a known material can be suitably used as long as it is a material having a large friction coefficient, water resistance, and excellent wear resistance, such as a thermoplastic elastomer or silicone rubber.

  The shape of the main body may be any shape as long as it does not hinder the tilting motion of the seating surface.For example, the shape of the entire body is substantially hemispherical by a smooth curved surface continuous with the bottom surface, or one surface of a rectangular parallelepiped. Various shapes such as a shape that is formed in a substantially spherical shape to form the bottom surface are conceivable.

  Among these, it is preferable that the whole outline on the bottom surface side in the longitudinal section passing through the central portion of the main body portion has a smooth parabolic shape having a vertex at the central portion. That is, it is preferable that the bottom surface side of the main body does not have a portion protruding outward from the surroundings. In this case, when the tilting operation of the seating surface is performed, there is no possibility that the main body comes into contact with the floor surface, and therefore the tilting operation of the seating surface can be performed more smoothly. As a result, the exercise assisting device can more effectively exercise the waist.

  Further, the main body portion is composed of an upper part having the seating surface and a lower part having the bottom surface, and the upper part and the lower part may be integrally fixed in a detachable state. Good (claim 8). In this case, the water inside the main body can be easily wiped off by removing the upper part and the lower part. As a result, the exercise assisting tool can be easily cleaned after use, and is easy for the user to use.

  Moreover, it is preferable that the specific gravity of the said exercise assistance tool is 1 or less (Claim 9). In this case, the exercise assisting device naturally floats in a state where the user is not seated. Thereby, since there is no possibility that a user steps on the exercise assisting device in a state of not sitting, the exercise assisting device becomes easier to use. Moreover, it is more preferable that the specific gravity of the whole exercise assistance tool is 0.86 to 0.96.

  Moreover, the float part for adjusting the specific gravity of the said whole exercise assistance tool may be incorporated in the said main-body part (Claim 10). In this case, the exercise assisting tool can easily adjust the buoyancy. For the float part, for example, a material capable of generating various buoyancy such as a hollow plastic molded hard plastic or foaming urethane can be used.

  Moreover, it is preferable that the said main-body part is comprised so that it can tilt to 15 degrees or more in all directions in the state which contacted the said slip prevention part to the said floor surface. In this case, the angle between the pelvis part and the waist part can be made sufficiently large regardless of the direction in which the seat surface is inclined. As a result, the exercise assisting device can further improve the effect of exercise.

  The height of the seating surface is preferably 88 mm to 130 mm. By setting the height of the seating surface within this specific range, it becomes easy to realize a state in which the user's waist is appropriately separated from the floor surface. Thereby, as described above, the seated user can easily tilt the seat by moving the waist while the user is seated on the floor. And the movable range of a user's waist | hip | lumbar part becomes wide, and it becomes possible to perform rotational motion etc. comparatively freely. Therefore, the effect of the waist exercise can be improved.

  Here, the height of the seating surface is, for example, the level of the seating surface in a state where the bottom surface is in contact with the floor surface so that the center of the seating surface is arranged vertically above the contact point with the floor surface. It can be obtained by measuring the height of the center. This is substantially the same as the height of the user's buttocks from the floor when the user is seated on the seating surface and the back is straight.

  Moreover, it is preferable that the curvature radius of the said bottom face is 50 mm-200 mm. When the curvature radius of the bottom surface is within the specific range, the inclination of the seating surface within the movable range of the user's waist can be restricted to a range suitable for exercise. That is, the inclination of the seating surface can be restricted to a range that is sufficiently large to enhance the effect of rotational motion and the like and easy for the user to balance.

  Here, the curvature radius of the bottom surface can be expressed by the radius of a virtual circle as follows, for example. First, a reference axis extending in the vertical direction through the contact point is determined with respect to the contact point with the floor surface at the bottom surface. Then, in the longitudinal section of the main body including the reference axis, two points on the bottom surface where the vertical distance from the contact point is equal are determined. The radius of a virtual circle passing through these three points, the two points and the contact point, is defined as the curvature radius of the bottom surface.

Example 1
Examples of the exercise assisting device will be described with reference to FIGS. The exercise assisting device 1 is configured to be usable in a state of being submerged in water, and includes a seat surface 2 on which a user sits and a substantially spherical bottom surface 3 as shown in FIGS. 2 and 3. A main body 10 is provided.

  As shown in FIGS. 6-8, the main-body part 10 has the some communication hole 16 which has the cavity 13 in the inside and connects the cavity 13 to the exterior. Further, as shown in FIGS. 6 and 7, a raised portion is formed on the seat surface 2 or its periphery so as to be raised along at least a part of the shape of the user's buttocks or crotch. As shown in FIG. 5, the bottom surface 3 is provided with a non-slip portion 4 that suppresses slipping between the bottom surface 3 and a floor surface in contact with water. And as shown in FIG. 1, the main-body part 10 is comprised so that it can incline in all directions in the state which made the anti-slip | skid part 4 contact the floor surface.

  In the following description, for example, directions such as up and down and front and rear are described using the direction of the exercise assisting tool 1 in a state where the user sits on the seat surface 2 with the back straight. That is, the seating surface 2 side of the exercise assisting tool 1 is set to the upper side, and the bottom surface 3 side is set to the lower side. Moreover, let the front protruding part 20 side mentioned later be the front, and let the other side be a back.

  As shown in FIG. 3, the body portion 10 of the exercise assisting device 1 includes an upper part 11 having a seating surface 2 and a lower part 12 having a bottom surface 3, and the upper part 11 and the lower part 12 are attached and detached. It is fixed integrally in a possible state. As shown in FIGS. 3, 6, and 7, the lower part 12 has a parabolic outline when viewed from the front, rear, or side, and an upper part thereof is opened. The upper part 11 is mounted so as to cover the opening surface of the lower part 12. In this example, both the upper part 11 and the lower part 12 are made of ABS resin.

  As shown in FIG. 4, the upper part 11 has a circular outline when viewed from above (the seating surface 2 side), and the inside thereof constitutes the seating surface 2. Further, as shown in FIGS. 4, 6, and 7, the front raised portion 20 as the raised portion that is raised from the surroundings while forming a smooth curved surface, the side raised portion 21, and It has a rear ridge 22.

  That is, as shown in FIG.4 and FIG.7, the front raised part 20 which protruded rather than the circumference | surroundings is provided in the front center part of the seat surface 2. As shown in FIG. Further, a rear raised portion 22 is provided at the rear central portion of the seat surface 2 so as to be raised from its surroundings. Further, as shown in FIG. 6, a pair of side raised portions 21 that are raised from the inside are provided on both side edges of the seat surface 2.

  Further, as shown in FIGS. 4 and 6, a pair of left and right recessed portions 23 that are recessed from the surroundings are formed at the center of the seat surface 2. The depressed portion 23 is disposed along the sciatic bone of the user sitting on the seat surface 2.

  As shown in FIG. 5, the lower part 12 has a circular shape whose contour when viewed from below (the bottom surface 3 side) follows the upper part 11. Moreover, as shown in FIG.3, FIG6 and FIG.7, as for the lower component 12, the whole outline when it sees from the front or a side is exhibiting the parabola shape. Thereby, as shown in FIG.6 and FIG.7, the whole outline by the side of the bottom face 3 in the longitudinal cross section which passes along the center part of the main-body part 10 of the exercise assistance tool 1 exhibits the smooth parabola shape which has a vertex in the center part. Yes.

  Further, as shown in FIGS. 3 and 5, the anti-slip portion 4 includes an anti-slip member 40 detachably attached to the bottom surface 3, and the anti-slip member 40 is shown in FIGS. 9 and 10. Furthermore, it has many convex parts 41 which protruded from the surface. The anti-slip member 40 is formed of a thermoplastic elastomer, and as shown in FIGS. 9 and 10, a circular region 42 that covers the bottom surface 3 and an engagement region that extends from the circular region 42 in four directions, front, rear, left, and right. 43. Further, as shown in FIG. 9, an engaging claw 430 protruding in the thickness direction of the engaging region 43 is formed at the tip of each engaging region 43. 6 and 7, the anti-slip member 40 covers the vicinity of the apex portion of the bottom surface 3 by inserting the engaging claws 430 into the engaging holes 120 formed through the lower part 12. It is attached to.

  Further, as shown in FIG. 4, a rear anti-slip member 17 made of an elastomer made of the same material as the anti-slip member 40 is disposed in the vicinity of the rear raised portion 22 in the upper part 11. The rear non-slip member 17 is detachably attached to the periphery of a communication hole 16a described later, and contacts the floor surface when the upper part 11 and the lower part 12 of the exercise assisting device 1 are placed against the wall. It functions as a leg part.

  The main body 10 is formed with a plurality of communication holes 16 (16a to 16d) for communicating the internal cavity 13 and the external space. In this example, as shown in FIG. 5 and FIG. 7, an elongated communication hole 16 a extending in the left-right direction is formed in the rear slip preventing member 17 arranged in the upper part 11. Further, as shown in FIG. 6, a pair of communication holes 16 b are formed on the side of the upper part 11 so that the edge of the upper part 11 is depressed upward.

  The lower part 12 is formed with a plurality of communication holes 16c and 16d in the anti-slip portion 4 and in the vicinity thereof. That is, the anti-slip portion 4 includes nine parts (refer to FIGS. 5 and 10) including a central part of the bottom surface 3 and eight places around the bottom part 12, as shown in FIGS. A round hole-shaped communication hole 16 c that penetrates the anti-slip member 40 is formed. Further, as shown in FIGS. 5 and 8, four substantially rectangular communication holes 16 d are formed at positions between adjacent engaging regions 43 of the anti-slip member 40 in the lower part 12. In addition, the mating surface 14 of the upper part 11 and the lower part 12 is configured to allow water and air to circulate, and can serve as a communication hole 16 that allows the cavity 13 and the external space to communicate with each other.

  Further, the exercise assisting tool 1 of this example has a seating surface height H shown in FIG. 6 of 97.6 mm. The height H of the seating surface in this example is the center of the seating surface 2 in a state where the bottom surface 3 is in contact with the floor surface so that the center point of the seating surface 2 is arranged vertically above the contact point with the floor surface. This is a value obtained by measuring the height of a point. This is substantially the same as the height of the user's buttocks from the floor when the user is seated on the seat surface 2 and the back is straight.

  Further, in the exercise assistance tool 1 of this example, the radius of curvature R measured at various points on the bottom surface 3 is 104 mm. The radius of curvature R of the bottom surface 3 in this example is the value of the radius of the virtual circle set as follows for each of the two states of the seat surface 2 facing upward and the side surface tilted by 14 °. . First, a reference axis extending in the vertical direction through the contact point is determined with respect to the contact point with the floor surface on the bottom surface 3. Then, two points on the bottom surface 3 having a vertical distance from the contact point of 12.34 mm are determined in the longitudinal section of the main body 10 including the reference axis. The radius of the imaginary circle passing through the three points of these two points and the contact point was defined as the curvature radius R of the bottom surface 3.

  Moreover, as shown in FIGS. 6-8, the cavity 13 in the main-body part 10 incorporates the float part 15 for adjusting the specific gravity of the exercise assistance tool 1 whole. The float portion 15 is a hollow disc-shaped component made of ABS resin, and is detachably attached to the substantially central portion of the upper component 11. Thereby, the specific gravity of the whole exercise assistance tool 1 is adjusted to 0.91.

  Further, in the exercise assistance tool 1 of this example, the gravity center position is set so that the seat surface 2 faces upward in the natural placement state.

  Next, an example of how to use the exercise assisting tool 1 will be described. When the exercise assisting device 1 is tilted, the user sits on the seat surface 2 with the back muscles straight in a state where the exercise assisting device 1 is submerged in water such as a bathtub or a bath. Thereafter, by swinging or rotating the waist while maintaining the position of the upper body, as shown in FIG. 1, the seating surface 2 can be tilted while the anti-slip portion 4 is in contact with the floor surface. it can. That is, while the anti-slip portion 4 is in contact with the floor surface, the seat surface 2 can be tilted by 15 ° or more in all directions with respect to the vertical direction, and the seat surface 2 can be moved in the horizontal direction. Thereby, exercise | movement, such as rotation exercise | movement and a torsion exercise | movement, can be performed to the muscles around a waist | hip | lumbar part.

  After using the exercise aid 1, the exercise aid 1 is pulled out of the water, so that water that has entered the main body portion 10 is discharged to the outside of the main body portion 10 through the communication hole 16 and the mating surface 14. Thereafter, the upper part 11 is removed from the lower part 12 as shown in FIG. 3 by rotating either the upper part 11 or the lower part 12 in the circumferential direction of the mating surface 14 while fixing either one. Can do. Thereby, it becomes possible to wipe off the water droplets remaining inside the main body 10. In addition, when attaching the upper part 11 to the lower part 12, after making both contact | abut, what is necessary is just to rotate in the reverse direction to the case of removal.

  Next, the function and effect of this example will be described. As illustrated in FIG. 3, the exercise assisting tool 1 includes a substantially spherical bottom surface 3. Therefore, the seat surface 2 is tilted in all directions with the bottom surface 3 kept in contact with the floor surface as shown in FIG. Can be made. Further, a non-slip portion 4 is provided on the bottom surface 3. Therefore, the exercise assistance tool 1 can be tilted in water without the exercise assistance tool 1 and the floor surface slipping. With these functions and effects, the exercise assisting tool 1 can be reliably tilted in water.

  Moreover, the main-body part 10 is comprised so that tilting to all directions is possible in the state which made the slip prevention part 4 contact the floor surface. Therefore, the user can incline the seat surface 2 in all directions, and can exercise the muscles around the waist in a balanced manner by the tilting operation of the seat surface 2. As a result, the exercise assisting tool 1 can further improve the effect of exercise.

  Moreover, as shown in FIG.6 and FIG.7, the front raised part 20, the side raised part 21, and the back raised part 22 as a raised part are formed in the seat surface 2 or its circumference | surroundings.

  The front raised portion 20 is provided at the front center portion of the seat surface 2, and the displacement of the pelvis portion from the seat surface 2 is restricted by contacting the crotch portion of the user. The side protuberances 21 are provided at both side edges of the seat surface 2, and the pair of side protuberances 21 abut each side of the pelvis of the user, whereby the pelvis from the seat surface 2. Discrepancy is regulated. Moreover, in this example, as another aspect of the raised portion, a rear raised portion 22 that is raised from the periphery of the seat surface 2 is provided at the rear central portion.

  Therefore, when the user exercises the lumbar region, it becomes easy to restrict the displacement of the pelvis from the seating surface 2 by these raised portions. As a result, when the exercise assisting tool 1 is tilted, the user's buttocks are less likely to be displaced from the seat surface 2 even in water, and the angle between the pelvis and the waist can be sufficiently increased during exercise of the waist. As a result, the exercise assisting tool 1 can further improve the effect of exercise.

  As described above, the exercise assisting device 1 can be used in water by the shape of the bottom surface 3, the anti-slip part 4, the inclination direction and angle of the seating surface 2, the action effect of each of the raised parts, or the synergistic effect thereof. The exercise effect can be further improved.

  In addition, as shown in FIG. 8, the inside of the main body 10 is a cavity 13 and the main body 10 has a communication hole 16. Therefore, it is possible to easily drain water from the main body 10. As a result, the exercise assisting tool 1 can be easily cleaned after use, and is easy for the user to use.

  Further, the upper part 11 and the lower part 12 are integrally fixed in a detachable state. Therefore, the exercise assisting tool 1 does not need to be provided with a movable part for tilting the seat surface 2. As a result, the exercise assistance tool 1 has a simple structure.

  Moreover, as shown in FIG. 5, the communication hole 16 is provided in the anti-slip | skid part 4 or its vicinity. Therefore, when the contact position between the non-slip portion 4 and the floor surface changes with the tilting motion of the exercise assisting tool 1, the water existing between the anti-slip portion 4 and the floor surface flows through the communication hole 16. It becomes easy to secure the flow path of water. As a result, the exercise assisting device 1 can easily reduce the resistance of water applied to the exercise assisting device 1 during the tilting operation. In this case, since it becomes easy to reduce the amount of water existing between the anti-slip portion 4 and the floor surface, the slip between the anti-slip portion 4 and the floor surface caused by water can be more reliably prevented. be able to.

  In addition, since the communication hole 16 is provided in or near the anti-slip portion 4, for example, after the use of the exercise assisting tool 1, the anti-slip portion 4 is placed on the floor surface facing downward, so It becomes possible to quickly drain the water from the communication hole 16. As a result, the exercise assisting device 1 is easier to use for the user.

  Further, as shown in FIG. 3, the anti-slip portion 4 includes an anti-slip member 40 disposed on the bottom surface 3, and as shown in FIG. 9, the anti-slip member 40 has a large number of protrusions protruding from the surface. A convex portion 41 is provided. Therefore, when the exercise assisting tool 1 is used, the convex portion 41 and the floor surface come into contact with each other, and water can flow through the gap between the convex portions 41. As a result, when the anti-slip member 40 moves with the movement of the waist, water between the convex portion 41 and the floor surface escapes to the gap between the convex portions 41, so that the anti-slip member 40 is And the floor surface can be reliably brought into contact with each other, and slippage with the floor surface can be prevented more reliably. As a result, the exercise assisting device 1 improves the exercise effect of the lower back and is easy to use.

  The anti-slip member 40 is made of an elastomer. Therefore, the frictional force between the anti-slip member 40 and the floor surface becomes larger, and the slip with the floor surface can be more reliably suppressed as described above. As a result, the exercise assisting device 1 improves the exercise effect of the lower back and is easy to use.

  As shown in FIGS. 6 and 7, the entire contour on the bottom surface 3 side in the longitudinal section passing through the central portion of the main body 10 exhibits a smooth parabolic shape having a vertex at the central portion. For this reason, when the tilting operation of the seating surface 2 is performed, there is no possibility that the main body 10 comes into contact with the floor surface, and therefore the tilting operation of the seating surface 2 can be performed more smoothly. As a result, the exercise assisting tool 1 can perform the exercise of the lower back more effectively.

  The main body 10 includes an upper part 11 having a seating surface 2 and a lower part 12 having a bottom surface 3, and the upper part 11 and the lower part 12 are integrally fixed in a detachable state. Yes. Therefore, by removing the upper part 11 and the lower part 12, it is possible to easily wipe off moisture inside the main body 10. As a result, the exercise assisting tool 1 can be easily cleaned after use, and is easy for the user to use.

  Moreover, the specific gravity of the exercise assisting tool 1 as a whole is 1 or less. Therefore, the exercise assisting device 1 naturally floats in a state where the user is not seated. That is, the exercise assisting device 1 is configured to float naturally even when submerged in a state where the user is not seated. As a result, since there is no risk of the user stepping on the exercise assisting device 1 in a state where he / she is not seated, there is no risk of stepping on the exercise assisting device 1 with his / her foot. It will be easy.

  Moreover, as shown in FIGS. 6-8, the float part 15 for adjusting the specific gravity of the exercise assistance tool 1 whole is incorporated in the main-body part 10. As shown in FIG. Therefore, the exercise assisting tool 1 can easily adjust the buoyancy.

  Moreover, the main-body part 10 is comprised so that it can tilt to 15 degrees or more in all directions in the state which made the slip prevention part 4 contact the floor surface. Therefore, the angle between the pelvis part and the waist part can be made sufficiently large regardless of which direction the seat surface 2 is inclined. As a result, the exercise assisting tool 1 can further improve the effect of exercise.

  Further, the height H of the seating surface is in the range of 88 mm to 130 mm. Therefore, it becomes easy for the exercise assistance tool 1 to realize a state in which the user's waist is appropriately separated from the floor surface. Thereby, as described above, the seated user 2 can easily tilt the seating surface 2 by moving the waist while the user is seated on the floor. And the movable range of a user's waist | hip | lumbar part becomes wide, and it becomes possible to perform rotational motion etc. comparatively freely. As a result, the effect of lumbar exercise can be improved.

  The curvature radius R of the bottom surface 3 is in the range of 50 mm to 200 mm. Therefore, the exercise assistance tool 1 can regulate the inclination of the seat surface 2 within the movable range of the user's waist to a range suitable for exercise. That is, the inclination of the seating surface 2 can be restricted to a range that is sufficiently large to enhance the effect of rotational motion and the like and that allows the user to easily balance.

  Further, in this example, as shown in FIGS. 4 and 6, a pair of left and right depressions 23 are formed at the center of the seating surface 2 so as to be along the user's sciatic bone. Therefore, the user can easily realize a natural state in which the spine is straight by seating the buttocks on the seat surface 2 according to the shape of the depressed portion 23. As a result, when the exercise assisting tool 1 is tilted, the angle between the pelvis part and the waist part can be sufficiently increased during the exercise of the waist part, and the exercise effect of the waist part can be further improved.

  As described above, the exercise assisting device 1 has a simple structure, can improve the exercise effect of the waist, and is easy to use in water.

  In the present example, the configuration in which the main body 10 is detachably mounted with the upper part 11 and the lower part 12 has been described, but other configurations are possible. That is, it is possible to adopt a configuration in which the main body 10 is not divided into a plurality of parts and is integrally formed.

  In this example, the curvature radius R of the bottom surface 3 is an almost constant value at various points on the bottom surface 3, but the curvature radius R on the bottom surface 3 varies depending on the measurement location. However, if the value of the radius of curvature R at each measurement location is within the specific range, the inclination of the seating surface 2 is large enough to enhance the effect of rotational motion and the like, and the user can easily balance. Can be regulated.

(Example 2)
In this example, the surface shape on the lower side (floor surface side) of the anti-slip member 40 in the first embodiment is changed to various shapes. FIG. 11 and FIG. 12 show an anti-slip member 402 having a textured surface 410 that has been textured instead of the convex portion 41. The embossed surface 410 has a fine uneven shape formed by embossing.

  As shown in FIG. 12, a central engagement claw 431 is erected upward at the center of the anti-slip member 402. Although not shown in the drawing, the main body 10 of this example has an engagement hole formed at the center of the bottom surface 3, and the central engagement claw 431 is inserted and disposed in the engagement hole. Further, the vicinity of the center of the bottom surface 3 of the main body portion 10 of this example protrudes inward from the peripheral portion, that is, the region provided with the communication hole 16c (see FIG. 12). Thereby, when draining water from the exercise assisting tool 1, by placing the bottom surface 3 on the floor surface, the water accumulated inside is discharged from the communication hole 16c.

  FIG. 13 shows an example of a non-slip member 403 in which a large number of cylindrical convex portions 41 are arranged in a polka dot pattern. FIG. 14 shows an example of the anti-slip member 404 in which a large number of elliptic columnar convex portions 41 are arranged. Others are the same as in the first embodiment. Of the reference numerals used in FIGS. 11 to 14, the same reference numerals as those used in the first embodiment denote the same components as in the first embodiment unless otherwise specified.

  As described above, various shapes can be adopted for the convex portion 41 of the anti-slip member, and even if any shape is adopted, the effect of more reliably preventing slippage with the floor surface can be exhibited. it can.

(Example 3)
This example is an example of an anti-slip member in which a concave portion 411 that is recessed from the surroundings is formed instead of the convex portion 41 of the anti-slip member 40 in the first embodiment. FIG. 15 shows an example of the anti-slip member 405 in which a large number of recesses 411 in which the outer surface of the anti-slip member is recessed into a quadrangular pyramid are arranged in a lattice shape. FIG. 16 shows an example of the anti-slip member 406 in which a plurality of concavities 411 formed of annular grooves are concentrically arranged. Others are the same as in the first embodiment. Of the reference numerals used in FIGS. 15 to 16, the same reference numerals as those used in the first embodiment denote the same components as in the first embodiment unless otherwise specified.

  Thus, even if it is a non-slip | skid member which formed the recessed part 411 instead of the convex part 41, the effect which prevents a slip with a floor surface more reliably can be exhibited.

DESCRIPTION OF SYMBOLS 1 Exercise aid 10 Main body part 11 Upper part 12 Lower part 13 Cavity 16 Communication hole 2 Seat surface 20 Front protuberance part 21 Side protuberance part 22 Back protuberance part 3 Bottom face 4 Anti-slip part

Claims (13)

An exercise aid that can be used while submerged in water,
A main body having a seating surface on which a user is seated and a substantially spherical bottom surface;
The main body portion has a plurality of communication holes that have a cavity therein and communicate the cavity with the outside.
A raised portion that is raised along at least a part of the shape of the user's buttocks or crotch is formed on or around the seat surface,
The bottom surface is provided with a non-slip portion that suppresses slipping between the floor and the floor that contacts in water,
The exercise assisting device according to claim 1, wherein the body portion is configured to be tiltable in all directions in a state where the anti-slip portion is in contact with the floor surface.   The exercise assisting device according to claim 1, wherein a front raised portion that is raised from the periphery of at least a front center portion of the seating surface is provided.   The exercise assisting device according to claim 1 or 2, wherein at least both side edges of the seating surface are provided with side bulging portions that are raised from the inside thereof.   The exercise assisting device according to any one of claims 1 to 3, wherein the communication hole is provided at least in the anti-slip portion or in the vicinity thereof.   The exercise assisting device according to any one of claims 1 to 4, wherein the anti-slip portion includes an anti-slip member disposed on the bottom surface, and the anti-slip member includes a plurality of anti-slip members protruding from the surface. An exercise assisting device having a convex portion.   6. The exercise aid according to claim 5, wherein the anti-slip member is formed of an elastomer.   The exercise assisting device according to any one of claims 1 to 6, wherein the entire contour on the bottom side in a longitudinal section passing through the central portion of the main body portion exhibits a smooth parabolic shape having an apex at the central portion. An exercise aid characterized by being.   The exercise assisting device according to any one of claims 1 to 7, wherein the main body portion includes an upper part having the seating surface and a lower part having the bottom surface, and the upper part and the lower part. An exercise assisting device, wherein the component is integrally fixed in a detachable state.   The exercise assisting device according to any one of claims 1 to 8, wherein the specific gravity of the entire exercise assisting device is 1 or less.   The exercise assisting device according to any one of claims 1 to 9, wherein a float portion for adjusting a specific gravity of the entire exercise assisting device is incorporated in the main body portion. Ingredients.   The exercise assisting device according to any one of claims 1 to 10, wherein the main body portion is configured to be tiltable to 15 ° or more in all directions in a state where the anti-slip portion is in contact with the floor surface. An exercise aid characterized by   The exercise assisting device according to any one of claims 1 to 11, wherein the seating surface has a height of 88 mm to 130 mm.   The exercise assisting device according to any one of claims 1 to 12, wherein a radius of curvature of the bottom surface is 50 mm to 200 mm.

Images