WO2013153685A1

WO2013153685A1 - Exercise assistance tool

Info

Publication number: WO2013153685A1
Application number: PCT/JP2012/067050
Authority: WO
Inventors: 松下　剛
Original assignee: 株式会社Mtg
Priority date: 2012-04-13
Filing date: 2012-07-04
Publication date: 2013-10-17
Also published as: CN102908754A; TWI483755B; TW201341018A; JP2013233426A; CN203017666U; KR20150003417A; SG11201404215UA; US20130274080A1

Abstract

An exercise assistance tool (1) that has a main body (10) provided with a seating surface (2) on which the user sits and a substantially spherical bottom surface (3). The height (H) of the lowest point of the seating surface (2) is in the range of 100 - 450 mm and a restraining means for limiting slippage of the user's buttocks from the seating surface (2) is provided. The exercise assistance tool (1) is configured to allow inclination of the seating surface (2) in all directions with the bottom surface (3) remaining in contact with the ground when a user is seated on the seating surface.

Description

Exercise aid

The present invention relates to an exercise aid.

There are various types of exercises for beauty and health maintenance purposes. Various assisting tools for improving the effect of exercise have been proposed depending on the type of exercise. For example, the exercise assisting tool disclosed in Patent Document 1 has been proposed as an assisting tool for assisting exercises involving rotation and twisting of the waist. This exercise assisting tool has a main body part having a top-down shape, and is configured to be seated on the upper surface of the main body part so as to assist exercise such as rotation of the waist.

Japanese Patent Laid-Open No. 9-135922

However, it is not easy for the exercise assisting tool to largely tilt the main body. For this reason, for example, when performing a rotational motion of the waist, there has been a problem that an effective motion cannot be achieved, for example, the rotational radius of the waist is reduced. Moreover, when using the said exercise assistance tool, a user needs to sit down to the contact surface vicinity. Therefore, there is a possibility that an unnecessary load is applied to the user's waist and the like.

Also, Patent Document 1 proposes a method of using an exercise assisting device placed on a table. In this case, although the load when the user sits down is reduced, it is necessary to prepare a table on which the exercise assisting device is placed, and there is a problem that it is difficult for the user to use. Even if the exercise assisting tool is used on a table, it is difficult to eliminate the problem that effective exercise cannot be performed because it is not easy to largely tilt the main body as described above.

The present invention has been made in view of the above background, and is intended to provide an exercise aid that can improve the effect of lumbar exercise and is easy to use.

One aspect of the present invention has a main body provided with a seating surface on which a user sits and a substantially spherical bottom surface,
An exercise assisting device characterized in that a height of the lowest point of the seating surface is in a range of 100 to 450 mm, and a restricting means for suppressing a user's buttocks from shifting from the seating surface is provided. is there.

In the exercise assisting device, the height of the lowest point of the seating surface is in the specific range, and the bottom surface has a substantially spherical shape. Therefore, in the state where the user is seated, the exercise assisting device can tilt the seating surface in all directions while keeping the bottom surface grounded by moving the waist with the grounded foot as a base point. Moreover, since the said exercise assistance tool has the seat surface height of the said specific range, it can ensure the movement range of the seat surface accompanying the inclination of the said seat surface large in a moderate range. That is, the movable range of the user's waist can be widened. Therefore, the user can effectively twist the muscles of the lumbar region by, for example, increasing the radius of rotation in the rotational motion of the lumbar region by using the exercise assisting tool.

Also, the exercise assisting tool has a restricting means for suppressing the user's buttocks from shifting from the seating surface. This reduces the need for the user to hold and hold the exercise assisting tool when exercising. And the said exercise assistance tool can fully heighten the exercise | movement effect of a user's waist | hip | lumbar part by the synergistic effect of the range of the said specific seat surface height, and provision of the said control means.

Also, since the height of the seating surface is set within the specific range, the burden on the user when sitting is reduced. Therefore, the exercise assisting tool is easy for the user to use.

As described above, according to the above aspect, it is possible to provide an exercise aid that can be effectively exercised and is easy to use.

FIG. 3 is a perspective view of the exercise assisting device in the first embodiment. The top view which looked at the exercise assistance tool in Example 1 from the protruding part side (front). FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. FIG. 3 is a cross-sectional view taken along line BB in FIG. 2. The top view which looked at the exercise assistance tool in Example 1 from the seat surface side (above). FIG. 6 is a cross-sectional view taken along line CC in FIG. 5. FIG. 6 is a cross-sectional view taken along line DD in FIG. 5. FIG. 6 is a cross-sectional view taken along line EE in FIG. 5. The top view which looked at the state where the user sat down on the exercise assistance tool in Example 1 from the back. The top view which looked at the state which is exercising using the exercise assistance tool in Example 1 from back. The top view which shows the state which the exercise assistance tool in Example 1 tilted to the side part side. Sectional drawing (cross-sectional view equivalent to FIG. 3) of the exercise assistance tool which formed the seat surface member and the bottom face member in Example 2 using a different material. Sectional drawing (cross-sectional view equivalent to FIG. 7) of the exercise assistance tool which formed the seat surface member and the bottom face member in Example 2 using a different material. The perspective view of the support stand in Example 4. FIG. The perspective view of the exercise assistance tool which interposed the support stand between the grounding surface in Example 4, and the bottom face. FIG. 10 is a perspective view of a support handle in the fifth embodiment. FIG. 10 is a cross-sectional view of the support handle taken along line FF in Embodiment 5.

The height of the seating surface in the exercise assisting device is the lowest of the seating surface with respect to the grounding surface in the state where the bottom surface is grounded so that the center of the seating surface is arranged vertically above the grounding point. It can be obtained by measuring the height of a point. This is substantially the same as the height from the ground contact surface to the lowest point of the user's buttocks when the user is seated on the seat surface and the spine is in a natural state.

The height (lowest point) of the seating surface is 100 mm or more and 450 mm or less. The exercise assisting device can easily realize a state in which the user's waist is appropriately separated from the ground contact surface by setting the height of the seating surface within this specific range. Accordingly, as described above, the user seated on the exercise assisting device can easily tilt the seating surface by moving the waist while touching the foot. Then, the user can widen the movable range of the waist, and can relatively freely perform a rotational motion or the like. Therefore, the exercise assisting tool can improve the effect of exercise of the waist. In addition, the exercise assisting device can be easily seated for the user because the height of the seating surface is appropriate.

When the height of the seating surface is less than 100 mm, not only is it difficult for the user to sit down, but the distance between the seating surface and the grounding surface becomes excessively short. Therefore, the exercise assisting tool has a narrow range of motion of the user's waist, and the exercise effect is insufficient. Therefore, the height of the seating surface is 100 mm or more, preferably 140 mm or more, and more preferably 160 mm or more.

In addition, when the height of the seating surface exceeds 450 mm, the user is in a state where the waist part is excessively separated from the grounding surface, the position of the center of gravity becomes high, and it becomes difficult to balance when moving the waist part. There is a fear. For this reason, the exercise assisting device may make it difficult to smoothly exercise the waist, and the effect of the waist exercise may be insufficient. Therefore, the height of the seating surface is 450 mm or less, preferably 350 mm or less, more preferably 300 mm or less, and further preferably 200 mm or less. Therefore, it is particularly preferable that the height of the seating surface is 160 mm or more and 200 mm or less from the viewpoint of both the movable range of the user's waist and the balance.

The main body portion needs to be formed of a material that does not substantially deform the bottom surface when the user is seated on the seat surface. Thereby, the said exercise assistance tool can maintain the height of a seat surface stably, and can perform the tilting operation | movement using the shape of a bottom face part smoothly.

The shape of the main body may be any shape that does not interfere with the tilting motion of the seat surface. The shape of the main body has various shapes, for example, a shape in which the entire surface is substantially hemispherical by a smooth curved surface continuous with the bottom surface, and a shape in which one surface of a rectangular parallelepiped is formed in a substantially spherical shape to form the bottom surface. Conceivable. As described above, the shape of the remaining portion of the main body is not particularly limited as long as the substantially spherical bottom surface is formed.

Here, the substantially spherical shape indicating the shape of the bottom surface is a concept including not only a perfect spherical surface defined geometrically but also a shape 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, goes to the edge direction and decreases the radius of curvature, and does not have rotational symmetry with respect to the central axis, and the curvature radii in directions orthogonal to each other have different values. It is also possible to do so.

Moreover, various modes can be adopted as the restriction means. The simplest form of the regulating means is a system in which the surface of the seating surface is made of a material having a high friction coefficient, and the deviation between the user's buttocks and the seating surface is suppressed using frictional force.

Another aspect of the restricting means is a method in which a shape changing portion having a shape changed along at least a part of the shape of the buttocks, waist, or crotch of the seated user is provided on or around the seating surface. is there. Thereby, a hip part, a waist | hip | lumbar part, or a crotch part is supported in shape, and the shift | offset | difference of a user's buttocks and a seat surface can be suppressed.

Still another aspect of the restricting means employs a material that easily deforms the seat surface portion following the shape of the user's buttocks or crotch, for example, a low-rebound resilience foam, and the like. This is a method of suppressing the deviation between the two by increasing the degree of adhesion. These aspects can also be used in combination.

Also, a pair of lateral side portions that stand up across the seat surface may be arranged as the restricting means at a position on the side of the pelvis portion of the user sitting on the seat surface. In this case, the exercise assisting device suppresses the user's buttocks from being displaced from the seating surface by the pair of lateral side portions, and the movement of the user's pelvis part easily follows the motion of the seating surface. It becomes. As a result, when the exercise assisting device performs, for example, a rotational motion of the waist, an angle is easily formed between the pelvic portion and the waist, and the muscles of the waist can be more effectively twisted. As a result, the exercise assisting device can further improve the effect of exercise.

Further, the lateral side portion may have flexibility and be formed so that the pelvis portion of the user sitting on the seating surface can be pressed from the lateral side. In this case, the exercise assisting tool can hold the pelvis portion of the user by the pair of side portions. Thereby, since a sense of unity occurs between the user's pelvis part and the seating surface, the movement of the pelvis part easily follows the movement of the seating surface. As a result, the exercise assisting device can more effectively perform the twisting exercise of the muscles of the user's waist, and can further improve the exercise effect.

Further, it is preferable that the lateral side portion is configured such that the height from the lowest point of the seating surface to the highest point of the lateral side portion is in a range of 100 to 250 mm. When the height of the lateral side portion is within the specific range, the exercise assisting device has an effect of sufficiently holding the user's pelvis part, and does not hinder the rotational movement of the waist portion, etc., and is smooth. The effect of realizing exercise can be easily achieved. Therefore, the exercise assisting device can further improve the effect of exercise.

If the height of the side portion is less than 100 mm, the effect of holding the pelvis portion of the user may be reduced. Therefore, the height of the side portion is preferably 100 mm or more, more preferably 120 mm or more, and still more preferably 140 mm or more. On the other hand, when the height of the side portion exceeds 250 mm, the side portion may interfere with smooth movement. Therefore, the height of the side portion is preferably 250 mm or less, more preferably 200 mm or less, and still more preferably 180 mm or less.

Further, the seating surface may have a raised portion that protrudes from the periphery at the center tip as the regulating means. In this case, the raised portion follows the shape of the crotch of the seated user. Therefore, the said seat surface can suppress the shift | offset | difference of the said seat surface and a user's buttocks in shape. Further, the seating surface makes it easy to match the seating position of the user with a position where effective movement is possible.

The main body portion includes a core material portion and a skin portion covering the core material portion, and the core material portion includes at least a bottom surface member positioned on the bottom surface side and a seat surface member positioned on the seat surface side. The bottom member can be made harder than the seat member. In this case, the bottom member can reduce sinking of the bottom due to the weight of the user by using a relatively hard material. As a result, the exercise assisting device can easily maintain the substantially spherical shape of the bottom surface. Further, by using a relatively soft material for the seat member, the exercise assisting tool can reduce the burden on the user's waist and improve the fit.

The bottom member is made of a material that does not easily deform when a user's weight is applied, such as plastic represented by polyurethane or polystyrene, or foamable plastic represented by rigid polyurethane foam or polystyrene foam. Can be adopted.

In addition, as the seat member, a flexible foamable plastic such as a flexible polyurethane foam can be employed. Furthermore, if a material that can be easily deformed by the load of the user's weight, such as a low resilience foam, is adopted as the seat member, as described above, the seat member can also function as the restricting means. it can. When the seat member is greatly deformed as the user is seated, if the height (lowest point) of the seat surface after the deformation is within a range of 100 mm to 450 mm, the movement of the seat member is performed as described above. The effect can be improved.

Moreover, the said exercise assistance tool can suppress the wear accompanying use of the said exercise assistance tool by providing the said skin material. As the skin material, a cloth material, a paint, or the like can be adopted, but the skin material disposed in the vicinity of the bottom surface is preferably a material having a relatively high wear resistance.

Further, it is preferable that the exercise assisting tool is provided with a center of gravity at a position where the seating surface faces upward in a natural placement state. In this case, the user can minimize the operation of adjusting the orientation before using the exercise assisting device. That is, the user does not need to perform a large operation such as switching the top and bottom. In addition, the user can easily balance in a state where the seat surface faces upward. As a result, the exercise assisting device becomes easier to use.

Further, the radius of curvature of the bottom surface is preferably 130 to 250 mm. When the curvature radius of the bottom surface is within the specific range, the exercise assisting tool can regulate the inclination of the seat surface within the movable range of the user's waist to a range suitable for exercise. . In other words, the exercise assisting tool can restrict the inclination of the seating surface to a range that is sufficiently large to enhance the effect of rotational movement and the like, and is easily balanced by the user.

If the curvature radius of the bottom surface is less than 130 mm, the inclination of the seating surface may become excessively large within the movable range of the user's waist. Therefore, the curvature radius of the bottom surface is preferably 130 mm or more, more preferably 150 mm or more, and still more preferably 160 mm or more. On the other hand, when the curvature radius of the bottom surface exceeds 250 mm, the inclination of the seating surface tends to be insufficient, and there is a risk that the effect of the exercise will be reduced, for example, in the rotational movement of the waist. Therefore, the curvature radius of the bottom surface is preferably 250 mm or less, more preferably 230 mm or less, and still more preferably 220 mm or less.

Here, the radius of curvature of the bottom surface can be expressed by the radius of a virtual circle as follows. First, a reference axis extending in the vertical direction through the grounding point is determined with respect to the grounding point on the bottom surface. Then, in the longitudinal section of the main body including the reference axis, two points on the bottom surface having a vertical distance of 50 mm from the grounding point are determined. The radius of the virtual circle passing through these three points, the two points and the grounding point, is defined as the curvature radius of the bottom surface.

The exercise assisting device may include a support stand that can be interposed between the bottom surface and the grounding surface, and the exercise assisting device may be configured to be able to suppress the tilting operation of the exercise assisting device by the support stand interposed therebetween. Good. In this case, the user can suppress an inadvertent tilting motion of the exercise assisting tool by providing the support stand. Therefore, the exercise assisting tool is easy to store when not in use. In addition, the user can use the exercise assisting tool whose tilting operation is suppressed by the support stand as a chair.

In addition, the exercise assisting tool is formed separately from the exercise assisting tool. The gripping part is configured to be gripped by the user, the grounding part placed on the grounding surface, and the grounding part. And a non-slip portion configured to prevent displacement of the grounding portion placed on the grounding surface, and the user places the grounding portion on the grounding surface while gripping the gripping portion. Accordingly, a pair of left and right support handles characterized in that the tilting operation of the exercise assisting tool can be suppressed may be provided.

The support handle is configured such that when the exercise assisting tool is used, the user can place the grounding portion on the grounding surface while gripping the gripping portion. Thereby, when using the said exercise assistance tool, it becomes possible for a user to balance at three points, a leg part and said pair of support handle. Further, the slip handle portion formed on the ground contact portion can prevent the support handle from being displaced. As a result, the exercise assisting device becomes easier to use.

Example 1
Examples of the exercise assisting device will be described with reference to FIGS. As shown in FIG. 1, the exercise assisting device 1 includes a main body portion 10 provided with a seat surface 2 on which a user is seated and a substantially spherical bottom surface 3. As shown in FIG. 3, the exercise assisting tool 1 has the height H of the lowest point 20 of the seating surface 2 in the range of 100 to 450 mm, and suppresses the user's buttocks from shifting from the seating surface 2. The side part 4 and the raised part 21 are provided as regulating means.

It should be noted that in the following description, directions such as up and down and front and rear are expressed using the direction of the exercise assisting device 1 in a state where the user is seated on the seat surface 2 with the back straight.

As shown in FIG. 5, the main body 10 has a substantially elliptical outline when viewed from the side of the seating surface 2 (above), and the inner side constitutes the seating surface 2. As shown in FIGS. 3 and 6 to 8, the seat surface 2 has a raised portion 21 that protrudes from the surroundings while forming a smooth curved surface, as shown in FIGS. 3 and 6 to 8. Further, as shown in FIGS. 1 and 2, the main body 10 has an arcuate outline when viewed from the front. Further, the main body 10 has a pair of side side parts 4 standing on the side of the seating surface 2 from the seating surface 2.

As shown in FIG. 3, the seat surface 2 has a lowermost point 20 in the rear direction, that is, in a direction opposite to the raised portion 21 with respect to the central portion 22 of the seat surface 2. In addition, the seat surface 2 is gently inclined from the peripheral edge toward the lowest point 20 and forms a continuous smooth curved surface.

Here, as shown in FIG. 3, the height H of the seating surface 2 is the grounding surface in a state where the bottom surface 3 is grounded so that the central portion 22 of the seating surface 2 is arranged vertically above the grounding point 30. This is the height of the lowest point 20 of the seating surface 2 when used as a reference. As described above, this is substantially the same as the height of the lowest point of the user's buttocks from the grounding surface when the user is seated on the seat surface 2 and the back is straight. In this example, the height H of the seating surface 2 is 185 mm.

The bottom surface 3 has a substantially spherical shape as shown in FIGS. In this example, the curvature radius R of the bottom surface 3 measured in the front-rear direction is 177 mm.

As shown in FIG. 5, the raised portion 21 is formed at the central tip portion of the seat surface 2, that is, the portion where the user's crotch portion is arranged. As shown in FIG. 3, the raised portion 21 is formed so as to gradually rise from the periphery toward the distal end on a straight line connecting the lowest point 20 of the seat surface 2 and the central portion 22 of the seat surface 2. Further, as shown in FIGS. 6 to 8, the seat surface 2 including the raised portion 21 is formed by a continuous smooth curved surface.

As shown in FIGS. 1 and 2, the pair of side side parts 4 are located on both sides sandwiching the seating surface 2, that is, on the side of the pelvis portion of the user sitting on the seating surface 2. It is formed so as to stand up across the wall. When viewed from the front, the pair of side side portions 4 are formed to bend toward the seating surface 2 as it goes upward as shown in FIG. Further, as shown in FIGS. 4 and 6 to 8, the surfaces of the pair of side side parts 4 that come into contact with the user are loosely formed so that the center part is recessed to the opposite side of the seating surface 2 from the periphery. It has a curved surface. Thereby, a pair of side part 4 is comprised so that the shape of a user's buttocks and waist | hip | lumbar part may be followed. Further, as shown in FIGS. 6 to 8, the surface contacting the user in the pair of side portions 4 and the seat surface 2 are formed by continuous smooth curved surfaces.

Further, as shown in FIG. 3, the pair of side side parts 4 are formed in a parabolic shape so that the outline when viewed from the side gradually becomes narrower as it goes upward from the seating surface 2. Yes. In this example, the height I of the side part 4 is 178 mm. Here, as shown in FIG. 3, the height I of the lateral side portion 4 is the lateral side from the lowest point 20 of the seating surface 2 when the grounding state is the same as when the height H of the seating surface 2 is measured. This is the height to the top point 40 of the part 4.

Next, an example of how to use the exercise assisting tool 1 will be described. As shown in FIG. 9, the user sits on the seat surface 2 of the exercise assisting device 1 with the back straight. Thereafter, the user swings or rotates the waist while maintaining the position of the upper body. Thereby, as shown in FIG. 11, the user can incline while moving the seat surface 2 in the horizontal direction. Thus, as shown in FIG. 10, the exercise assisting tool 1 can cause the muscles around the user's lower back to exercise such as rotational motion and twisting motion.

Next, the function and effect of the exercise assisting device 1 will be described. In the exercise assisting device 1, the height H of the lowest point 20 of the seating surface 2 is in a specific range, and the bottom surface 3 has a substantially spherical shape. Therefore, the user can tilt the seat surface 2 in all directions while the bottom surface 3 is grounded by moving the waist with the grounded foot as the base point while sitting on the exercise assisting device 1. Moreover, since the exercise assistance tool 1 has the specific height H, the movement range of the seating surface 2 accompanying the inclination of the seating surface 2 can be ensured to be large within an appropriate range. That is, the user can widen the movable range of the waist. For this reason, the exercise assisting tool 1 can effectively twist the muscles of the lumbar region, for example, by increasing the radius of rotation in the rotatory motion of the lumbar region. Thus, by setting the height H of the seating surface 2 in the specific range, the exercise assisting device 1 can improve the effect of exercise such as rotation of the user's waist.

Further, the exercise assisting tool 1 has a pair of side side portions 4 that stand up with the seating surface 2 interposed therebetween, and a raised portion 21 that is disposed at the center tip portion of the seating surface 2 as the restricting means. Moreover, the side part 4 is configured such that the height I from the lowest point 20 of the seating surface 2 to the highest point 40 of the side part 4 is in the specific range. Then, the seat surface 2, the raised portion 21, and the surface in contact with the user in the pair of side side portions 4 have a smooth curved surface that is continuous with the shape of the user's buttocks, waist, and crotch. It is comprised so that a user's buttocks, a waist | hip | lumbar part, or a crotch part can be supported in shape. As a result, it is less necessary for the user to hold the exercise assisting tool 1 with a hand when exercising. In addition, the exercise assisting tool 1 allows the user to smoothly rotate the hips and the like at the seating position where the user can perform effective exercise, and the hips are unlikely to be displaced from the seat surface 2. As described above, the exercise assisting device 1 can sufficiently enhance the exercise effect of the user's lower back due to the synergistic effect of the range of the specific seating surface height H and the provision of the regulating means.

Also, since the height H of the seating surface 2 is set in the specific range, the burden on the user when sitting is reduced. Therefore, the exercise assistance tool 1 is easy for the user to use.

Also, the radius of curvature R of the bottom surface 3 is within the specific range. Therefore, the exercise assisting tool 1 restricts the inclination of the seat surface 2 within the movable range of the user's waist to a range that is sufficiently large to enhance the effect of rotational motion and the like and that allows the user to easily maintain a balance. Can do.

As described above, the exercise assisting tool 1 can exercise effectively and is easy to use.

(Example 2)
This example is an example in which the main body portion 10 of the exercise assisting tool 1 in the first embodiment is made of a plurality of materials. As shown in FIG. 12, the exercise assisting tool 1 of this example includes a core material portion 17 and a skin portion 15 that covers the core material portion 17 as shown in FIG. 12. In the core member 17, the bottom surface member 13 located on the bottom surface 3 side and the seat surface member 12 located on the seat surface 2 side are formed of different materials.

The bottom member 13 and the seat member 12 are formed using urethane foams having different hardnesses. The seat member 12 is formed of a flexible urethane foam having flexibility. Thereby, when the user is seated, the seat member 12 is configured to be deformed following the shape of the body surface to some extent. On the other hand, the bottom member 13 is formed of a hard urethane foam having a hardness higher than that of the seat member 12. Thereby, the bottom surface member 13 is difficult to be deformed when the user is seated on the seat surface 2.

The pair of side side portions 4 are formed of a flexible urethane foam made of the same material integrally with the seat member 12. Thereby, while a pair of side part 4 has flexibility, it is formed so that the pelvis part of the user sitting on the seat surface 2 can be pressed from a side. In this example, the flexible urethane foam used for the seat member 12 was one having a hardness measured by a Shah hardness meter (model number LX-C; manufactured by Wenzhou Yamadoki Co., Ltd.) of 12 degrees.

Cloth material is used for the skin portion 15, and a cloth material having high wear resistance is used in a portion where the bottom surface 3 is easily worn.

Further, the exercise assisting tool 1 of the present example has a center of gravity at a position where the seat surface 2 faces upward in the natural placement state. For example, in this example, as shown in FIGS. 12 and 13, the bottom member 13 having a relatively high density is formed in a shape that is substantially rotationally symmetric with respect to the central axis. Thereby, the center of gravity of the exercise assisting tool 1 is set as described above. Others are the same as in the first embodiment.

Next, the function and effect of this example will be described. In the exercise assisting tool 1 of this example, the center of gravity is provided at a position where the seat surface 2 faces upward in the natural placement state. Therefore, the user can minimize the operation of adjusting the orientation before using the exercise assisting tool 1. In addition, the user can easily balance in the state where the seat surface 2 faces upward. As a result, the exercise assisting tool 1 becomes easier to use.

Further, the side part 4 has flexibility and is formed so that the pelvis part of the user sitting on the seat surface 2 can be pressed from the side. Therefore, the exercise assisting tool 1 can hold the user's pelvis part by the pair of lateral side parts 4. Thereby, since a sense of unity occurs between the user's pelvis and the seating surface 2, the movement of the pelvis part easily follows the movement of the seating surface 2. As a result, the exercise assisting device 1 can perform the twisting exercise of the muscles of the user's lower back more effectively, and can further improve the exercise effect.

Further, the main body 10 has a core member 17 and a skin portion 15 covering the core member 17. In the core member 17, the bottom surface member 13 located on the bottom surface 3 side and the seat surface member 12 located on the seat surface 2 side are formed of different materials, and the bottom surface member 13 is harder than the seat surface member 12. . Therefore, the exercise assisting tool 1 can substantially eliminate the sinking of the bottom surface 3 due to the weight of the user by using a relatively hard material for the bottom surface member 13. As a result, the exercise assisting tool 1 can easily maintain the shape of the bottom surface 3. Further, by using a relatively soft material for the seat member 12, the exercise assisting tool 1 can reduce the burden on the user's waist and improve the fit. Moreover, the exercise assistance tool 1 can also make the seat surface member 12 function as a control means for suppressing the shift of the user's buttocks. In addition, the same effects as those of the first embodiment can be obtained.

In the first and second embodiments, a plurality of parts such as the pair of lateral side portions 4 are configured to function as the restricting means. However, one or more parts functioning as the restricting means may be provided. That's fine. For example, in the first embodiment, the pair of side side portions 4 are not formed, and the user's buttocks or crotch portions are supported in shape by the seating surface 2 and the raised portions 21 so as to function as regulating means. is there. Conversely, as the restricting means, a configuration in which only the pair of side portions 4 are provided without providing the raised portions 21 is also possible. Of course, in addition to the method of supporting the shape, other methods such as a method of suppressing the displacement between the seat surface 2 and the user's buttocks using frictional force by using the skin portion 15 as a cloth material having a large friction coefficient. It is also possible to adopt.

(Example 3)
In this example, the height H of the seating surface 2 of the exercise assisting tool 1 in Example 2, the height I of the pair of side portions 4, the curvature radius R of the bottom surface 3, and the hardness of the seating member 12 are variously changed. It is an example.

<Height H of the seating surface>
Test bodies 1 to 10 were prepared in which the height H of the seat surface 2 of the exercise assisting tool 1 in Example 2 was variously changed as shown in Table 1. Table 1 shows the magnitude of the exercise effect when the hips were rotated using these specimens. In Table 1, the symbols ◎, ○, △, and X indicate that the number of people who felt that the exercise effect of the waist was sufficiently large was 8 or more out of 10, ◎ if 5 or more, ○, The case of 3 or more is represented as Δ, the case of 2 or less is represented as x, and the cases of ◎, ○, and Δ are determined to be acceptable results.

<Height I of the side part>
Specimens 11 to 19 in which the height I of the side part 4 of the exercise assisting tool 1 in Example 2 was variously changed as shown in Table 2 were produced. Table 2 shows the ease of exercise when the hips were rotated using these specimens. The symbols ◎, ○, △, and X in Table 2 indicate that the number of people who felt that the rotational movement was easy was 8 or more out of 10, ◎ 5 or more, ○, 3 or more. The case of [Delta] is represented as [Delta], and the case of 2 or less is represented as x.

<Rection curvature radius R>
Specimens 21 to 30 in which the radius of curvature R of the bottom surface 3 in Example 2 was variously changed as shown in Table 3 were produced. Table 3 shows the ease of exercise when the hips were rotated using these specimens. The symbols ◎, ○, △, and X in Table 3 indicate that the number of people who felt easy to rotate is 8 or more out of 10, ◎ 5 or more, ○, 3 or more, respectively. The case of [Delta] is represented as [Delta], and the case of 2 or less is represented as x.

<Hardness of seat member>
Test bodies 31 to 38 in which the hardness of the seat member 12 of the exercise assisting tool 1 in Example 2 was variously changed as shown in Table 4 were produced. Table 4 shows the ease of exercise when the hips were rotated using these specimens. The symbols ◎, ○, △, and X in Table 4 indicate that the number of people who felt easy to rotate is 8 or more out of 10, ◎ 5 or more, ○, 3 or more. The case of [Delta] is represented as [Delta], and the case of 2 or less is represented as x.

As can be seen from Table 1, the exercise assisting device 1 is capable of effective exercise by setting the height H of the seating surface 2 to at least 105 mm to 448 mm. The exercise assisting device 1 is more preferable when the height H of the seating surface 2 is 143 mm to 293 mm, and more preferable when the height H is 160 mm to 191 mm.

Further, as is known from Table 2, the exercise assisting device 1 has the effect of sufficiently holding the user's pelvis part by making the height I of the pair of side side parts 4 at least 85 mm to 255 mm, and smooth. This makes it easier to exercise with a balance between the effect of realizing a healthy exercise. In addition, the exercise assisting device 1 is more easily moved when the height I of the pair of side portions 4 is 120 mm to 250 mm, and particularly easy to move when the height I is 141 mm to 178 mm.

Further, as is known from Table 3, the exercise assisting device 1 can be more easily moved by setting the curvature radius R of the bottom surface 3 to at least 125 mm to 260 mm. In addition, the exercise assisting device 1 is more easily moved when the radius of curvature R of the bottom surface 3 is 140 mm to 243 mm, and particularly easy to move when the curvature radius R is 164 mm to 212 mm.

Further, the hardness of the seat member 12 is not particularly limited, but as is known from Table 4, the hardness measured by a Shaji hardness tester (model No. LX-C; manufactured by Wenzhou Yamajiki Co., Ltd.) is at least 3 to 25 degrees. As a result, the burden on the user's lower back was reduced and the fit was improved, making it easier to exercise. Further, the mobility aid 1 is more easily moved when the hardness of the seat member 12 is 7 degrees to 20 degrees, and particularly easy to move when the hardness is 8 degrees to 16 degrees.

(Example 4)
The exercise assistance tool 1 of this example has an annular support stand 16 shown in FIG. As shown in FIG. 15, the support stand 16 is configured to be interposed between the bottom surface 3 and the ground surface. The user can suppress the tilting motion of the exercise assisting tool 1 through the support stand 16.

Thus, since the user can suppress the inadvertent tilting motion of the exercise assisting instrument 1 by providing the support stand 16, the exercise assisting instrument 1 can be easily stored when not in use. In addition, the user can use the exercise assisting tool 1 whose tilting operation is suppressed by the support stand 16 as a chair.

(Example 5)
The exercise assistance tool 1 of this example includes a pair of left and right support handles 18 shown in FIGS. 16 and 17, separately from the exercise assistance tool 1. As shown in FIG. 16, the support handle 18 has a substantially arc-shaped grip 180 that is configured to be gripped by the user. Moreover, as shown in FIG. 17, the both ends of the holding | grip part 180 have the substantially cylindrical grounding part 181 mounted in a grounding surface.

At both ends of the grounding portion 181, as shown in FIG. 17, there are provided rubber non-slip portions 182 configured so as to be able to suppress displacement of the grounding portion 181 placed on the grounding surface.

The support handle 18 is configured such that when the exercise assisting tool 1 is used, the user can hold the gripping part 180 and place the grounding part 181 on the grounding surface to suppress the tilting operation of the exercise assisting tool 1. Yes. Thereby, the user can balance at three points of the leg portion and the pair of support handles 18. Further, the user can suppress the displacement of the support handle 18 by the anti-slip part 182 formed on the grounding part 181. As a result, the exercise assisting tool 1 becomes easier to use.

In Examples 1 to 3, the example of the exercise assisting tool 1 in which the curvature radius R of the bottom surface 3 is substantially equal in the front-rear direction and the left-right direction is shown, but the curvature radius R of the bottom surface 3 is changed from the front-rear direction to the left-right direction. It is also possible to take a configuration with different values. Even in this case, if the curvature radius R in the front-rear direction and the curvature radius R in the left-right direction are within the specific range, as described above, the inclination of the seating surface 2 is sufficient to enhance the effect of the rotational motion and the like. It can be restricted to a large range that is easy for the user to balance.

Claims

It has a main body provided with a seat surface on which a user is seated and a substantially spherical bottom surface,
The exercise assistance characterized in that the height of the lowest point of the seating surface is in the range of 100 to 450 mm and is provided with a restricting means for suppressing the seated user's buttocks from shifting from the seating surface. Ingredients.
The exercise assisting device according to claim 1, wherein a shape changing portion having a shape changed so as to conform to at least a part of a shape of a buttocks, a waist, or a crotch of a seated user is provided on the seat surface or the periphery thereof. An exercise aid characterized by having the restriction means.
3. The exercise assisting device according to claim 1, wherein the body portion includes a pair of lateral sides that stand on both sides of the seating surface at a position that is lateral to a pelvis portion of a user sitting on the seating surface. An exercise assisting device, wherein a side portion is disposed as the restricting means.
The exercise assisting device according to claim 3, wherein the lateral side portion is flexible and is formed so as to be able to press a pelvis portion of a user sitting on the seating surface from the side. Exercise aids to do.
5. The exercise assisting device according to claim 3, wherein the lateral side portion has a height from the lowest point of the seating surface to the highest point of the lateral side portion in a range of 100 to 250 mm. An exercise aid characterized by being configured.
The exercise assisting device according to any one of claims 1 to 5, characterized in that the seating surface has a raised portion raised from the periphery as a regulating means at a central tip portion thereof. Exercise aids.
The exercise assisting device according to any one of claims 1 to 6, wherein the main body portion includes a core material portion and a skin portion covering the core material portion, and the core material portion is at least on the bottom surface side. The bottom surface member positioned on the seat surface and the seat surface member positioned on the seat surface side are formed of different materials, and the bottom surface member is harder than the seat surface member.
The exercise assisting device according to any one of claims 1 to 7, wherein a center of gravity is provided at a position where the seating surface faces upward in a naturally placed state.
The exercise assisting device according to any one of claims 1 to 8, wherein the curvature radius of the bottom surface is 130 to 250 mm.
The exercise assisting device according to any one of claims 1 to 9, further comprising a support stand that can be interposed between the bottom surface and the grounding surface, and tilting the exercise assisting device through the support stand. An exercise assisting device configured to be able to inhibit movement.
A pair of left and right support handles used by a user when using the exercise assisting device according to any one of claims 1 to 10, wherein the handle is formed separately from the exercise assisting device. A gripping part configured to be able to grip, a grounding part placed on the grounding surface, and a slip formed on the grounding part and configured to suppress displacement of the grounding part placed on the grounding surface A support handle, wherein the user can hold the gripping part and place the grounding part on a grounding surface so that the tilting motion of the exercise assisting device can be suppressed. .