Sports equipment

Abstract

This invention provides a foot-stepping exercise device that allows an assistant to easily assist the user's foot movements. [Solution] The device consists of a base to be installed on the floor and a main body, the base having a holding part to hold the main body, the main body being rectangular in plan view and consisting of an upper part and a lower part, the lower part having a bulging part that bulges downward and the bulging part being rotatably held by the holding part of the base, the upper part having a footrest consisting of a user's footrest for the user and an assistant's footrest for the assistant, the user's footrest and the assistant's footrest are each arranged in pairs symmetrically with respect to the center of the longitudinal direction of the upper part, the assistant's footrest is positioned outside the user's footrest and the footrest has a means to restrict the slippage of the feet.

Description

Technical Field

[0001] The present invention relates to an exercise device, and more particularly to a device for promoting lower limb movement.

Background Art

[0002] Conventionally, efforts have been made to improve the health of the elderly by performing exercises that move the lower limbs, such as foot-tapping exercises, in a sitting posture on a chair or sofa, and many devices have been developed. As an example, there is also a device for training the lower limbs by placing both feet on a flat surface in an arc shape and alternately raising and lowering the left and right feet. However, in a state where the user's exercise ability has greatly declined, there have been many cases where the user cannot perform the foot-tapping exercise well on their own. Therefore, there has been a demand for a structure that allows an assistant to easily assist with the foot-tapping exercise.

[0003] In response to such problems, various techniques have been proposed in the past. For example, an exercise device for the lower limbs (see Patent Document 1) has been proposed and is a known technique. More specifically, it is an exercise device capable of continuously performing jigging while suppressing displacement, comprising a placement portion on which the user's both feet are placed, a main body portion having an arc portion and rotating, and a regulating means for suppressing the movement of the main body portion in the rotation direction. The regulating means has a concave portion formed by removing a part of the arc portion of the main body portion, and a convex portion fitted into the concave portion. The convex portion is covered by the concave portion, and further includes a base portion installed on the floor surface and fixing the convex portion on the upper surface. The main body portion is supported so as to be rotatable about a horizontal axis with respect to the base portion and the convex portion. However, it does not have a structure for an assistant to assist, and has not solved the above problems.

Prior Art Documents

Patent Documents

[0004] <00​​Patent No. 7016530 [Overview of the project] [Problems that the invention aims to solve]

[0005] In view of the above problems, the present invention aims to provide a foot-stepping exercise device that allows an assistant to easily assist the user's foot movements. [Means for solving the problem]

[0006] To solve the above-mentioned problems, the present invention provides an exercise device in which a user alternately moves both feet up and down and rotates, comprising a base and a main body installed on the floor, wherein the base is provided with a holding part for holding the main body, the main body is rectangular in plan view and consists of an upper part and a lower part, the lower part has a bulging part that bulges downward and the bulging part is rotatably held by the holding part of the base, the upper part is provided with a footrest consisting of a user's footrest for the user and an assistant's footrest for the assistant, the user's footrest and the assistant's footrest are each arranged in pairs symmetrically with respect to the center of the longitudinal direction of the upper part, the assistant's footrest is positioned outside the user's footrest and the footrest is provided with a restricting part for restricting foot slippage.

[0007] Furthermore, the present invention adopts a means in which the restricting portion has a structure in which a sheet with high friction is attached to the upper surface and / or a step is provided at the end of the footrest portion.

[0008] Furthermore, the present invention provides a mechanism in which the bulging portion is separable from the lower portion, and after separation, a replacement unit is fixed to the bulging portion to replace the main body, and a second footrest portion having a different shape from the footrest portion is provided on the upper part of the replacement unit, and the second footrest portion is provided for both the user and the assistant.

[0009] Furthermore, the present invention employs a means by which footwear is placed on at least a part of the second foot rest, and the second foot rest and the bottom portion of the front part of the footwear are fixed together.

[0010] Furthermore, the present invention provides that the bulging portion includes a curved portion in the shape of a semi-cylindrical or cylindrical surface, a part of the circumferential surface of the curved portion faces downward, and the holding portion of the base body abuts against the curved portion and provides means for rotatably holding the main body.

[0011] Furthermore, the present invention provides a holding portion having a plurality of cylindrical portions and a shaft portion inserted into the cylindrical portions, wherein the shaft of the cylindrical portion is parallel to the shaft of the curved surface portion, and the cylindrical portion is slidable relative to the shaft portion.

[0012] Furthermore, the present invention provides a means for the holding portion to be composed of grooves or holes corresponding to the curved surface portion, to be slidable with respect to the curved surface portion, and to rotatably hold the main body.

[0013] Furthermore, the present invention employs a means by which the holding part has multiple holding positions at different heights, and the height at which the main body is held can be changed by changing the holding position.

[0014] Furthermore, the present invention provides a means by which the height of the holding position is changed by inverting the upper and lower parts of the portion of the base that includes the holding portion, the position of the holding portion relative to the side surface of the base is located away from the vertical center of the side surface, and the base is located away from the vertical center of the portion that includes the holding portion. [Effects of the Invention]

[0015] According to the exercise equipment of the present invention, in a stepping exercise device in which the user alternately moves their feet up and down, an assistant can easily assist the user's foot movements, thereby contributing to the improvement of the user's health. [Brief explanation of the drawing]

[0016] [Figure 1]This is an overall perspective view showing an embodiment of the exercise apparatus according to the present invention. [Figure 2] This is an overall perspective view showing another embodiment of the exercise apparatus according to the present invention. [Figure 3] This is a schematic diagram showing the state of movement in the exercise apparatus according to the present invention. [Figure 4] This is an explanatory view showing an embodiment of a structure for height adjustment in the exercise apparatus according to the present invention. [Figure 5] This is an explanatory view showing another embodiment of the exercise apparatus according to the present invention. [Figure 6] This is an explanatory view showing the structure of the base in the exercise apparatus according to the present invention. [Figure 7] This is an explanatory view showing a modified example of the base material in the exercise apparatus according to the present invention. [Figure 8] This is an explanatory view showing a modified example of the exercise apparatus according to the present invention.

Embodiments for Carrying Out the Invention

[0017] The greatest feature of the exercise apparatus according to the present invention is that in the movement of the lower limbs, an assistant can smoothly assist the movement of the user's feet. Hereinafter, embodiments of the exercise apparatus according to the present invention will be described based on the drawings. Note that the exercise apparatus according to the present invention is not limited to the examples described below, and can be appropriately changed within the scope of the technical idea of the present invention, that is, within the scope of shapes, dimensions, structures, etc. that can exhibit the same operational effects. The main body of this exercise apparatus is rectangular in plan view. Taking the long direction of the rectangular dimensions as the longitudinal direction and the short direction of the dimensions as the width direction, the following description will be given. That is, in the description, when simply referring to the longitudinal direction, it indicates the long direction of the dimensions in the plan view of the main body. When simply referring to the width direction, it indicates the short direction of the dimensions in the plan view of the main body.

[0018] The present invention will be described according to FIGS. 1 to 8. FIG. 1 shows an embodiment of the exercise apparatus according to the present invention, where (a) is an overall perspective view and (b) is a front cross-sectional view. Figure 2 shows another embodiment of the exercise equipment according to the present invention, where (a) is an overall perspective view and (b) is a front cross-sectional view. Figure 3 shows the usage of the exercise equipment; (a) is a schematic diagram showing the board in a horizontal position, and (b) is a schematic diagram showing the board tilted to the left as viewed from the assistant's side. Figure 4 shows a height adjustment structure in the exercise equipment according to the present invention, where (a) is a perspective view illustrating the height adjustment structure, and (b) and (c) are cross-sectional views showing the height adjustment structure. Figure 5 shows another embodiment of the exercise equipment according to the present invention, where (a) is a perspective view illustrating that the main body is detachable, and (b) is a perspective view showing an example using a replacement unit. Figure 6 shows the structure of the base in the exercise device according to the present invention, and both (a) and (b) are reference diagrams illustrating modified examples of the holding part of the base. Figure 7 is an explanatory diagram showing modified versions of the substrate's holding part, where (a) shows the case where the holding position is raised, (b) shows the case where the holding position is lowered, and (c) is a plan view of the substrate. Figure 8 is an explanatory diagram showing modified versions of the exercise device according to the present invention, where (a) shows a shape with a partition at the boundary of the foot rest, (b) shows a shape with a foot sole massager provided in the foot rest, (c) shows a shape with a fixing band provided as the foot rest, and (d) shows a shape in which the entire main body is arc-shaped.

[0019] Exercise equipment 1 is an exercise device in which the user alternately moves both legs up and down and rotates, and both the user and the assistant perform the up-and-down movement of both legs simultaneously. The morphology in which the bulge is semi-cylindrical will be explained with reference to Figure 1. The exercise equipment 1 consists of a main body 10 and a base 50. The material can be primarily wood, or it can also be resin or metal. By primarily using wood, the product is relatively lightweight, easy to process, and suitable for small-scale mass production. By using a resin structure, mass production becomes possible using molds. Using metal increases durability. However, the increased weight makes it suitable for use in environments where movement is infrequent, such as for stationary applications.

[0020] The main body 10 is positioned on the base 50 and is held rotatably by the base 50. The main body 10 is the part on which the user and assistant place their feet and rotates. The main body 10 consists of an upper part 20 and a lower part 30.

[0021] The upper surface 20 is the part on which the user and assistant place their feet. The upper surface 20 is rectangular in shape when viewed from above and is elongated. The width should be long enough to accommodate the front part of the foot and the arch. Depending on the type of exercise, it may be longer enough to accommodate the entire foot. The length in the longitudinal direction is roughly the width of a person's shoulders, and long enough to place both feet and perform a natural stepping motion. The upper surface 20 is provided with a foot rest 21 for placing feet, and both a user foot rest 21a for the user and an assistant foot rest 21b for the assistant are provided.

[0022] The user's foot rest 21a is positioned closer to the center of the upper surface 20 in the longitudinal direction than the assistant's foot rest 21b, while the assistant's foot rest 21b is positioned further away than the user's foot rest 21a. The user's foot rest 21a and the assistant's foot rest 21b are each arranged in pairs symmetrically with respect to the center of the upper surface 20 in the longitudinal direction. The length of the footrest portion 21 in the longitudinal direction is slightly longer than the width of the foot, and the width is long enough to accommodate the front part or the arch of the foot.

[0023] The user's footrest 21a and the assistant's footrest 21b are adjacent to each other, and the assistant's footrest 21b is raised by a spacer 23. Therefore, there is a step between the user's footrest 21a and the assistant's footrest 21b. This step functions as a restrictor, preventing the user's foot, placed on the footrest 21, from sliding towards the assistant's footrest 21b.

[0024] A high-friction sheet 22 is attached to the surface of the user's foot rest 21a and the assistant's foot rest 21b. The high-friction sheet also functions as a restricting part that prevents the feet from slipping. High-friction sheets 22 are sheets with high surface friction and are non-slip. Materials include fabrics with fine bumps, textured acrylic, and rubber. By attaching the high-friction sheet 22, it functions as a restricting element that prevents the user's and assistant's feet from slipping.

[0025] A fall prevention frame 24 is positioned at the longitudinal end of the upper surface portion 20. The fall prevention frame 24 is a plate that prevents the feet from sliding off the main body 10. The presence of the fall prevention frame 24 prevents the feet from sliding off when the main body 10 rotates and the upper surface portion 20 becomes tilted. On the surface of the footrest portion 21, a mark 28 is drawn, for example, to clearly indicate where to place the foot.

[0026] The lower portion 30 is the lower part of the main body 10, and includes the portion that abuts against the base 50, and in relation to the base 50, it defines the rotational trajectory of the main body 10. The lower portion 30 consists of a lower flat portion 31 and a bulging portion 32. The lower flat portion 31, like the upper portion 20, is a single rectangle. A bulge 32 is located at the lower center of the longitudinal direction of the lower flat portion 31.

[0027] The bulging portion 32 is a semi-cylindrical curved portion, with a portion of its circumferential surface facing downwards. For example, a cut piece of PVC pipe can be used for the semi-cylindrical section because it is relatively easy to cut and has high strength. The axis of the semi-cylindrical part is in the width direction of the center in the longitudinal direction. The circumferential surface of the bulge 32 is smooth and can move smoothly relative to the holding part 51. In other words, the lower portion 30 includes a bulging portion 32 that protrudes downward, and the bulging portion 32 is located at least in the center of the lower portion 30, and the bulging portion 32 is in contact with the base 50.

[0028] A creaking prevention sheet 33 is placed between the lower flat portion 31 and the semi-cylindrical bulge portion 32 to reduce the creaking noise generated by the sliding movement of the lower flat portion 31 and the bulge portion 32. The anti-squeak sheet 33 is made of a material that has a smooth surface and is strong, such as a thin acrylic sheet. By using the anti-squeak sheet 33, squeak noises can be reduced.

[0029] The base 50 is the part that rotatably holds the main body 10 and is installed on the floor surface. The base 50 is a pedestal shape with a holding portion 51. The holding portion 51 consists of two shaft portions 52 and a cylindrical portion 53, with the shaft portions 52 fixed to the side of the base 50. The cylindrical portion 53 rotates smoothly around the shaft portions 52. In other words, the holding portion 51 of the base 50 contacts the semi-cylindrical portion which is the curved surface of the bulging portion 32, and holds the main body 10 so that it can rotate.

[0030] There are two sets of shaft portions 52 and cylindrical portions 53, and as shown in Figure 1(b), the semi-cylindrical bulge portion 32 is held in two places, providing stable support while the rotation of the cylindrical portion 53 allows the main body 10 to rotate smoothly. In other words, the holding portion 51 has a plurality of cylindrical portions 53 and a shaft portion 52 inserted into the cylindrical portions 53, the axis of the cylindrical portion 52 is parallel to the axis of the curved surface portion, and the cylindrical portion 53 is slidable relative to the shaft portion. The axis of a curved surface is the central axis of the cylinder that forms the basis of the semi-cylinder if the curved surface is semi-cylindrical, and the central axis of the cylinder if the curved surface is cylindrical. The bottom surface of the base 50 is equipped with an anti-slip surface 57.

[0031] The operation of exercise equipment 1 in Figure 1 will be explained in accordance with Figure 3. Figure 3(a) shows the main unit 10 in a horizontal position with the user and assistant each placing their feet on it. The user and the assistant sit facing each other with exercise equipment 1 in between. The user places their feet SF on the two user foot rests 21a. They place their right foot and their left foot on each. If the user is unable to move their feet to the user foot rests 21a on their own, an assistant will help them place their feet. The assistant places their feet HF on the two assistant foot rests 21b. They place their right foot and left foot on each. From the assistant's perspective, the relationship between the exercise equipment 1, the user, and the assistant's feet is as shown in Figure 3(a). The axis of rotation is indicated by point A. If the user can step on their own, an assistant is not necessary. However, if their legs and hips are extremely weak, they may not be able to step on their own. In such cases, an assistant can rotate the main unit 10, causing the user's feet to move up and down accordingly, enabling them to perform the stepping motion.

[0032] Figure 3(b) shows the state in which the assistant applies force to the left foot, causing the main unit 10 to rotate so that the left side is lower. It is rotating around point A as the axis. In accordance with the rotation of the main unit 10, the user's feet also move, with the right foot lowering and the left foot rising. Similarly, when the assistant applies force to the right foot and rotates the main unit 10 so that the right side is lowered, the user's feet also move in accordance with the rotation of the main unit 10, with the right foot rising and the left foot lowering. In this way, by having the user and assistant perform stepping exercises together, even users who are completely unable to perform stepping exercises can activate their muscles, resulting in stretching, muscle training, and improved motor function. Furthermore, if the amount of stepping exercise improves, it may be possible to place the assistant's feet on the user's foot rest 21a and the user's feet on the assistant's foot rest 21b to encourage larger stepping movements. In this way, using it can significantly increase the amount of footwork performed by the user.

[0033] The configuration in which the bulging portion 32 has a protruding rod 34 will be described in reference to Figure 2. The parts that are the same as those in Figure 1 will be omitted from the explanation. The upper surface portion 20 of the main body 10 is almost the same shape as that in Figure 1 and has a footrest portion. The lower portion 30 is the lower part of the main body 10, and includes the portion that abuts against the base 50, and in relation to the base 50, it defines the rotational trajectory of the main body 10. The lower portion 30 consists of a lower flat portion 31 and a bulging portion 32.

[0034] The lower flat portion 31, like the upper portion 20, is a single rectangle. A bulge 32 is located at the lower center of the longitudinal direction of the lower flat portion 31. The bulging portion 32 is roughly trapezoidal in shape and has curved protruding rods 34 on both sides in the width direction. The protruding rods 34 are cylindrical rods with a diameter of about 1 centimeter, and this portion is held by the holding portion 51 of the base body 50. The protruding rods 34 may be a long, single rod, or they may be two rods consisting only of protruding portions. Furthermore, the trapezoidal portion and the protruding rod 34 may be separable. Also, the trapezoidal portion and the protruding rod 34 may be slidable, and the main body 10 may be rotated by the sliding of the trapezoidal portion and the protruding rod 34.

[0035] The main body 10 rotates around the axis of the protruding rod 34. The base 50 is the part that holds the main body 10 in a rotatable manner. The base 50 is a pedestal shape with a holding portion 51. The holding portion 51 is a groove 55 on the upper side of the base 50. The groove 55 includes a semicircular portion that matches the shape of the protruding rod 34. As shown in Figure 2(a), by aligning the protruding rod 34 of the main body 10 with the groove 55 of the base body 50 and placing it there, the main body 10 can be held stably while also being able to rotate.

[0036] Alternatively, a hole 56 capable of similar retention may be provided below the groove 55. By providing multiple holes 56, the height of the main body 10 can be freely adjusted. In other words, the holding portion 51 is provided with a groove 55 or hole 56 corresponding to the curved portion of the protruding rod 34, is slidable relative to the curved portion, and holds the main body 10 in a rotatable manner.

[0037] The structure for tilting the main unit 10 will be explained. For elderly people, it is often easier to march diagonally with their legs slightly extended forward than to march vertically. Therefore, the base 50 is tilted towards the user, and the structure is designed so that the top surface of the main body 10 faces the user. In other words, the base 50 tilts the main body 10 such that one end of the upper surface of the main body 10 is positioned higher than the other end. By using the angle adjustment mechanism, the height of one side of the base 50 is made higher than the other side. The angle is approximately 5 to 10 degrees. The angle adjustment section may have a different configuration from the base 50, or the base 50 itself may have an angle adjustment function. In this way, by tilting the main unit 10, the user can step with their feet SF at a slight angle, thereby reducing the strain on their feet during stepping.

[0038] The structure that changes the height of the main body by inverting the base is explained in accordance with Figure 4. Figure 1 illustrates an example of use where the side surface 58 of the base 50 is fixed to the bottom plate 59. However, with this structure, it is difficult to change the height. Therefore, the height at which the main body 10 is held is changed by altering the structure of the base 50. Specifically, the position of the holding part relative to the side of the base is located away from the vertical center of the side, and the part of the base including the holding part can be inverted vertically. As shown in Figure 4(a), the shaft 52 of the holding part 51 is fixed to the side surface 58, and the side surface 58 is placed on the bottom plate 59. A groove 55 is cut into the base plate 59, and the side 58 fits into the groove 55. This structure prevents the side 58 from shifting or becoming distorted when the holding part 51 holds the main body 10 and the force is transmitted to the side 58. The fixing of the side surface 58 and the shaft 52 prevents the shaft 52 from coming off the side surface 58 during movement.

[0039] The height of the main body 10 will be explained with reference to Figures 4(b) and 4(c). Figure 4(b) shows an example in which the holding part 51 is positioned higher than the vertical center of the side surface. The bottom side of the side surface 58 is fitted into the groove 55 of the bottom plate 59. Since the holding part 51 is located at a relatively high position, the main body 10 is also held at a high position, allowing for stepping exercises with a large stroke. Figure 4(c) shows an example where the holding portion 51 is positioned lower than the vertical center of the side surface. The bottom edge of the side surface 58 is fitted into the groove 55 of the bottom plate 59. Since the holding part 51 is located at a relatively low position, the main body 10 is also held at a low position, allowing even users with unstable foot-stepping movements to perform foot-stepping exercises with small strokes at a position close to the floor. The upper part of side 58 may be higher than the main body 10, but this is not a problem because the operating position of the main body and the position of side 58 are different. In this way, by making a part of the base 50 reversible, it becomes possible to adjust the height at which the main body 10 is held, which is convenient.

[0040] The example in Figure 4 describes a case where there is a base plate 59 on which the side surface 58 of the base is supported. However, by increasing the strength of the shaft 52 and the side surface 58, it is also possible to create a structure without using a base plate 59. The absence of the base plate 59 makes it convenient to change the height of the main body 10 by simply inverting the base 50, without the need to fit the side 58 and the base plate 59 together.

[0041] The additional structure will be explained in reference to Figure 5. It would be convenient if one exercise device could accommodate users in various conditions. Therefore, as shown in Figure 5(a), it is conceivable to make the bulging portion 32 separable from the lower portion 30. The bulging portion 32 consists of a semi-cylindrical portion 36, a support plate 35, and a projection 27. The support plate 35 fixes the semi-cylindrical portion 36 and is the part that abuts against and supports the portion including the lower surface portion 30 and the upper surface portion 20. The projection 27 corresponds to the hole 28 in the portion including the lower surface portion 30 and the upper surface portion 20, and the main body 10 becomes a single unit when the projection 27 and the hole 28 are fitted together. The main unit 10 is held by the base 50 and can perform stepping motions.

[0042] Furthermore, as shown in Figure 5(b), after separating the main body 10 into the bulging portion 32 and the portion including the lower surface portion 30 and the upper surface portion 20, the replacement unit 40 can be fixed to the bulging portion 32 in place of the portion including the lower surface portion 30 and the upper surface portion 20, thereby serving as a substitute for the main body. The replacement unit 40 is provided with fixing holes 41 similar to the holes 28, and the top of the replacement unit is provided with a second foot rest that has a different shape from the foot rest of the main body. The second footrest section 43 is provided for both the user and the assistant, and is capable of rotational movement.

[0043] In this example, a slipper 42, which is footwear, is placed on top of the replacement unit 40. By using the slipper 42, even users whose feet cannot be sufficiently secured can use the slipper as a guide, allowing them to step without their feet slipping. The slippers can be positioned in a specific way, for example, by fixing the front part of the slippers in place. This allows you to perform the exercise by applying pressure to your toes while stepping. In this example, slippers were used as footwear, but other types of footwear are also acceptable. For example, sandals or house shoes are possible. If the user's foot position is unstable, footwear that securely fastens the foot, such as sneakers with laces, may also be used. Another possible modification is to add cushioning to the footrest area, allowing users with sensitive toes to use the product without any problems. Furthermore, by changing to a wider shape that allows the entire sole of the foot to be placed on it, it is possible to perform footwork more stably.

[0044] Modified versions of the substrate will be explained with reference to Figures 6 and 7. By changing the position of the holding part 51 of the base 50, the stability and the height of the main body 10 can be changed. As shown in Figure 6(a), the position of the retaining part 51 relative to the semi-cylindrical bulge 32 can be adjusted. For example, for a semi-cylindrical with a diameter of 10 cm, if the diameter is 6 cm (A), the height of the main body 10 is the greatest, and the rotation angle of the main body 10 is the greatest. However, if a lateral force is applied, the main body 10 may fall off. As the distance between the cylindrical sections 53 is increased to 8 cm (B) and 9 cm (c), the height of the main body 10 decreases, and the rotation angle of the main body 10 decreases. However, even if a lateral force is applied, the possibility of the main body 10 falling off decreases.

[0045] In the structure of the holding part 51, which consists of a shaft part 52 and a cylindrical part 53, applying lubricant to the shaft part 52 allows the cylindrical part 53 to rotate smoothly relative to the shaft part 52. However, with continued use, the amount of lubricant gradually decreases. It is conceivable to introduce lubricant from near the end of the cylindrical portion 53, but it is difficult for the lubricant to reach the central part of the cylindrical portion 53. Therefore, as shown in Figure 6(b), the cylindrical portion 53 is separated near the center to create a gap 54. By applying lubricant through this gap 54, the lubricant can be applied to the entire shaft portion 52.

[0046] When multiple users will be using the device, it may be necessary to significantly change the height of the main body 10. Therefore, as shown in Figure 7, it is preferable to be able to change the height of the holding portion 51 of the base 50. The base 50 has grooves 55 that accommodate multiple heights. The height of the main body 10 can be changed by changing the installation position of the holding part 51, which consists of two shaft parts 52 and a cylindrical part 53. Figure 7(a) shows the case where the holding part 51 is installed at a high position. Figure 7(b) shows the case where the holding part 51 is installed at a lower position. Figure 7(c) is a plan view of the base 50. Since the shaft portion 52 and the cylindrical portion 53 can be easily interchanged, the height of the main body 10 can be freely changed.

[0047] A modified example will be explained using Figure 8. Figure 8(a) shows the case where the footrests 21 are separated by partitions 26. The partitions 26 may be rectangular prisms or semi-cylindrical. By making the partitions 26 movable, they can be adjusted to suit the user's body shape. Figure 8(b) shows an example in which a foot sole massage section 29 is provided. Since the soles of the feet can be massaged at the same time as stepping, it is suitable for promoting health. For foot massage, options include health-promoting warts or bamboo foot massagers. Figure 8(c) shows an example in which a fixing band 25 is placed on the footrest 21. Depending on the user, the position of their feet may not be fixed, or they may not have the intention to fix it. Therefore, by using the fixing band 25 to fix the user's feet, the exercise can be performed even by users who have difficulty with stepping exercises. Figure 8(d) shows the case where the entire lower surface 30 is arc-shaped. Even if the entire lower surface 30 is arc-shaped, the same effect can be obtained by providing a user foot rest 21a and an assistant foot rest 21b.

[0048] Thus, with the exercise equipment according to the present invention, in a device that involves alternately raising and lowering the legs, an assistant can easily assist the user in the movement of their legs, thereby contributing to the promotion of health.

[0049] Furthermore, by using high-friction sheets, steps, and partitions, the equipment is designed to prevent the user's and assistant's feet from slipping or moving, allowing for more stable exercise.

[0050] Furthermore, by adding an additional flat surface to the top of the main unit, the device can perform exercises tailored to the user's condition.

[0051] Furthermore, by placing slippers or similar footwear on the footrest, even users who cannot stably place their feet on the footrest can continue to exercise.

[0052] Furthermore, by making the bulging part of the main body semi-cylindrical and the base side a rotating cylinder, the circumferences of the two parts come into contact with each other, allowing for extremely smooth rotation.

[0053] Furthermore, since the base can be tilted and the main body can be tilted towards the user, the user can perform stepping exercises even with their legs extended forward. [Industrial applicability]

[0054] The exercise equipment according to the present invention is an exercise device that allows users to perform stepping exercises while seated, and enables both an assistant and the user to perform stepping exercises simultaneously. It can be effectively used by people of all ages, from those who cannot perform stepping exercises on their own and require assistance to healthy individuals, and can reliably produce exercise benefits. Therefore, we believe that the industrial applicability of the exercise equipment according to the present invention is very great. [Explanation of symbols]

[0055] 1 exercise equipment 10 Main unit 20 Top part 21 Footrest section 21a User footrest 21b Footrest for assistant 22 High friction sheet 23 Spacers 24 Anti-drop frame 25 Fixing bands 26 Partition 27 Protrusion 28 holes 29 Foot massage section 30 Bottom part 31 Lower plane part 32 Bulge 33. Squeak prevention sheet 34 Protruding rod 35 Support plate 36 Semi-cylindrical section 40 Replacement Units 41 Fixing hole 42 slippers 43 Second footrest 50 Substrate 51 Holding part 52 Shaft 53 Cylinder part 54 gaps 55 Groove 56 holes 57 Anti-slip 58 Side view 59 Bottom plate M mark SF user foot HF assistant foot

Claims

1. An exercise device in which the user alternately moves both legs up and down and rotates, It consists of a base that is installed on the floor and the main body. The base includes a holding portion for holding the main body, The main body is rectangular in shape when viewed from above, and consists of an upper part and a lower part. The lower surface has a bulge that extends downwards. The bulging portion is rotatably held by the holding portion of the base, The upper surface is provided with a footrest consisting of a user's footrest for the user and an assistant's footrest for the assistant. The user's footrest and the assistant's footrest are each arranged in pairs symmetrically with respect to the center of the longitudinal direction of the upper surface, and the assistant's footrest is positioned outside the user's footrest. An exercise device characterized in that the foot rest is provided with a restricting part that restricts foot slippage.

2. The exercise device according to claim 1, characterized in that the restricting portion has a structure in which a high-friction sheet is attached to the upper surface and / or a step is provided at the end of the footrest portion.

3. The bulging portion is separable from the lower portion. After separation, the replacement unit is fixed to the bulging portion, thereby replacing the main body. The upper part of the replacement unit is provided with a second footrest, which has a different shape from the aforementioned footrest. The exercise apparatus according to claim 1, characterized in that the second footrest section is provided for both the user and the assistant.

4. The exercise device according to claim 3, characterized in that footwear is placed on at least a part of the second foot rest, and the second foot rest and the bottom portion of the front part of the footwear are fixed together.

5. The bulging portion includes a curved surface portion in the shape of a semi-cylindrical or cylindrical surface, and a part of the circumferential surface of the curved surface portion faces downward. The exercise device according to claim 1, characterized in that the holding portion of the base abuts against the curved surface portion and holds the main body so that it can rotate.

6. The holding portion has a plurality of cylindrical portions and a shaft portion inserted into the cylindrical portions, and the shaft of the cylindrical portion is parallel to the shaft of the curved surface portion. The exercise device according to claim 5, characterized in that the cylindrical portion is slidable relative to the shaft portion.

7. The exercise device according to claim 5, characterized in that the holding portion is composed of a groove or hole corresponding to the curved surface portion, is slidable with respect to the curved surface portion, and holds the main body in a rotatable manner.

8. The exercise device according to any one of claims 1 to 7, characterized in that the holding part has multiple holding positions at different heights, and the height at which the main body is held can be changed by changing the holding position.

9. The position of the holding portion relative to the side surface of the base is located away from the center of the side surface in the vertical direction. The substrate can be transformed by inverting the upper and lower parts of the portion including the holding part. An exercise device according to any one of claims 1 to 7, characterized in that the height of the holding position can be changed.

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