Training equipment and training method using the same

Abstract

To provide a training apparatus capable of easily performing training with a light burden and correcting the abnormality of a lower limb.SOLUTION: A training apparatus according to one embodiment includes a base, a pair of foot housings attached to an upper surface of the base, a pair of rotators that rotatably couple the base and the foot housings, and a pair of sliding assistants that assist sliding of distal ends of the foot housings on the base. The foot housing parts can respectively house the right and left feet of the user through the foot supports, and a recessed part having an arc-shaped side wall corresponding to a moving locus on the tip side of the foot housing parts is arranged on an upper surface of the base. The sliding assistance portion may include a first bearing configured to facilitate sliding of the foot receiving portion in the recess, and the pivoting portion may include a second bearing configured to facilitate pivoting of the foot receiving portion by the user, and an elastic member configured to expand and contract in accordance with the pivoting of the foot receiving portion and to increase a repulsive force in accordance with an increase in a pivoting angle due to the pivoting of the foot receiving portion. The upper surface of the base is provided with a scale visually indicating the magnitude of the turning angle of the foot housing part.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to the technical field of body shape correction training equipment, and more particularly to the correction of abnormal leg shapes such as bow legs and bowed legs. [Background technology]

[0002] For example, if you frequently sit in a posture that puts a lot of strain on your lower limbs, such as sitting upright, your gluteus maximus will be pushed outward, and at the same time, the femur of your skeleton will be displaced accordingly. If you repeat this posture daily for many years, the gap between your knees will widen, resulting in bow legs.

[0003] Most of the conventional leg orthotics available on the market attempt to correct the shape of the legs by fixing both feet for a long period of time to a certain shape, such as by taping bands or wearing braces.

[0004] However, while corrective methods using taping or individual devices are effective to a certain extent, they require long periods of time of at least two hours every day for adjustment. In addition, these methods have drawbacks, such as not being able to perform other movements while in use, the limbs being subjected to pressure from the devices for long periods of time, which can reduce blood flow and cause discomfort such as numbness in the limbs. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-113182 [Patent Document 2] Japanese Patent Application Publication No. 2016-077551 Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made in consideration of the above matters, and its main object is to provide a training device and a training method using the same that allows easy training with little strain and corrects abnormalities in the lower limbs. [Means for solving the problem]

[0007] According to a first aspect of the present invention, there is provided a training device comprising: The training device comprises a base, a pair of foot accommodating sections attached to the upper surface of the base and capable of accommodating the left and right feet of a user via foot supports, a pair of rotating sections provided on the heel side of the foot accommodating sections and rotatably connecting the base and the foot accommodating sections, a scale provided on the upper surface of the base corresponding to the tip of the foot accommodating section and visually indicating the magnitude of the rotation angle of the foot accommodating section, a pair of sliding assisting sections provided on the tip side of the foot accommodating section and assisting the tip of the foot accommodating section to slide on the base due to the rotation of the rotating sections, and a recess provided on the upper surface of the base and having arc-shaped side walls corresponding to the movement trajectory of the tip side of the foot accommodating section, The sliding assist section includes a first bearing interposed between the foot accommodating section and the base and having an outer ring that rotates in the recess in response to the rotation of the foot accommodating section, and the rotating section includes a second bearing that facilitates the user's rotation of the foot accommodating section, and an elastic member that expands and contracts in response to the rotation of the foot accommodating section and whose resilience increases as the rotation angle due to the rotation of the foot accommodating section increases, and the top surface of the foot support is provided with a raised section that forms an arch to correct the user's flat feet.

[0008] In one embodiment of the training device, the base is configured to include two rectangular plates to which the pair of foot receiving sections are respectively attached, and a hinge that foldably connects the two rectangular plates.

[0009] In another embodiment of the training device, the edges of the opposing side surfaces of the pair of foot receiving sections form indicators that indicate the starting point of the rotation angle at the start of use. According to a second aspect of the present invention, there is provided a training method using the training device of the above aspect, said method comprising: (S1): Standing on the training equipment with your left and right feet placed on the foot storage compartments via foot supports; (S2); Start training with both hands hanging naturally or placed on any support; (S3); Using your heels as the axis, open both feet to the left and right from the tip, (S4): Rotating both feet to the limit of their resistance to the repulsive force of the elastic members and then stopping them in place for a predetermined period of time; (S5); After standing still for a predetermined time, relax both feet and return the foot receiving section to the starting position by the biasing force of the elastic member. Includes:

[0010] One embodiment of the above training method further includes (S6): repeating (S1) to (S5). [Effects of the Invention]

[0011] According to the present invention, a training device and a training method using the same are provided, which allow easy training with a light burden and thereby correct abnormalities in the lower limbs. [Brief explanation of the drawings]

[0012] [Figure 1] 1A and 1B are perspective views showing a schematic configuration of an embodiment of a training device according to the present invention, in which (A) shows the unfolded state and (B) shows the folded state. [Figure 2] FIG. 2 is a diagram illustrating an example of a top view of the training device shown in FIG. 1, with a schematic diagram of a user's feet added. [Figure 3] This shows an example of six views of the training equipment shown in Figure 1 in an unfolded state, where (A) is a left side view, (B) is a top view, (C) is a right side view, (D) is a bottom view, (E) is a front view, and (F) is a back view. [Figure 4] 2 is a top view of the training machine shown in FIG. 1 in an unfolded state with a foot receiving section removed. FIG. [Figure 5] 2 is a rear view of a pair of foot receiving sections provided in the training machine shown in FIG. 1. FIG. [Figure 6] FIG. 2 is an example of an exploded perspective view of the training machine shown in FIG. [Figure 7] 2 is an explanatory diagram illustrating an example of how to use the training device shown in FIG. 1. [Figure 8] This is an example of a schematic diagram explaining the mechanism of bow leg correction. DETAILED DESCRIPTION OF THE INVENTION

[0013] Some embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same or corresponding elements and members are designated by the same reference numerals, and duplicate explanations will be omitted where appropriate. Please note that the shape and size of each member in the drawings may not correspond to the actual scale or ratio, as they have been enlarged, reduced, or omitted as appropriate to facilitate explanation.

[0014] Furthermore, ordinal terms such as first, second, etc. used below are merely identifiers for distinguishing between identical or corresponding components, and the identical or corresponding components are not limited by these terms.

[0015] In this specification, the side corresponding to the user's heel may be referred to as the "rear side," and the side at the toe may be referred to as the "front side" or "tip side." The "front" region may also be referred to as the "tip region." The terms "connected" or "coupled" do not only refer to a case where components are in direct physical contact with each other in a contact relationship, but also encompass a case where another structure is interposed between the components and this or these other structures are in contact with the components. Furthermore, the term "substantially" is used to include measurement error.

[0016] (1) Training Equipment Embodiments <Outline configuration> FIG. 1 is an example of a perspective view showing the schematic configuration of a training device 1 according to one embodiment of the present invention, with (A) showing the unfolded state and (B) showing the folded state. FIG. 2 is an example of a top view schematically showing the state in which the training device shown in FIG. 1 is in use. FIG. 3 is an example of a six-sided view of the training device 1 in the unfolded state. Furthermore, FIG. 4 is a top view of the training device shown in FIG. 1 in the unfolded state with the foot storage section removed.

[0017] As shown in Figures 1 to 4, the training equipment 1 of this embodiment includes a base 10 having a recess on its upper surface with an approximately arc-shaped side wall SW, a pair of left and right foot storage sections 20L, 20R, rotating sections 30L, 30R, foot supports 120L, 120R, and a rotation angle scale 70.

[0018] The base 10 supports the main components of the device, such as the foot storage sections 20L and 20R. As shown in FIG. 1(B), the base 10 includes a left base section 10L and a right base section 20R, and a hinge 210 connecting these sections together, and is configured to be foldable along the center line of the hinge 210. This foldable structure allows for easy storage and transportation, and allows for convenient training. In this embodiment, a handle 150 is provided at the end (toe side) of the hinge 210, making it easy for the user to remove the device from its storage position and for it to be easily stored in a small space. However, since this device is designed to be lightweight, there is no need to provide a handle 150.

[0019] During use, it is desirable to place the base 10 on a stable, horizontal surface such as a floor for safety and operability. A recess is formed on the top surface of the base 10 to provide space for the rotation unit and sliding assist unit (described later), and a step is formed between the top surface and the tip region by the side wall SW on the tip (toe) side. A rotation angle scale 70 is provided in the tip region, allowing the user to easily visually check the degree of outward rotation of the foot storage compartments 20L, 20R. In this embodiment, as shown in the top view of FIG. 2, the left and right long sides of the rectangular hinge 210 are set to 0°, and the rotation angle is printed in 5° increments along the arc-shaped rotation path of the tip of the foot storage compartments 20L, 20R, providing a training guide for the user, as described in detail below. In this embodiment, the left and right long sides of the hinge 210 form indicators indicating the starting point of the rotation angle.

[0020] The training apparatus 1 is provided with foot supports 120L, 120R. When starting training, these foot supports 120L, 120R are placed on the upper surfaces of the foot storage compartments 20L, 20R, respectively. The user places their feet on these foot supports 120L, 120R, stands on the base 10, and performs training by rotating the foot storage compartments 20L, 20R outward to the left and right around the heels as shown in Figure 2. Specific training methods will be described in detail later.

[0021] <Detailed structure of the foot support> The foot supports 120L, 120R have a raised portion EL formed from approximately the center of their top surface toward the inside (toward the hinge 210), and this raised portion EL has a shape that corresponds to the arch shape of the sole of a healthy user. This allows a user with flat feet to train to correct their flat feet simply by standing on the foot supports 120L, 120R. The specifications of the raised portion EL may adopt the standard arch shape of a healthy person, or may be individually customized to suit the user.

[0022] <Detailed structure of the rotating part> The rotating sections 30L, 30R are provided on the base 10 in the heel area of ​​the foot accommodation sections 20L, 20R. Because the rotating sections 30L, 30R rotate around a central axis, their positions on the base 10 (on the horizontal plane) remain unchanged. Therefore, the user's feet do not sway or move back and forth from side to side during training. This allows the user to concentrate on their training with peace of mind.

[0023] As shown in FIGS. 5 and 6, the pivoting portions 30L, 30R include protrusions 22L, 22R, ball bearings 32L, 32R, elastic members 38L, 38R, and stoppers (stoppers) ST. The protrusions 22L, 22R are cylindrical and extend from the rear surfaces of the foot receiving portions 20L, 20R toward the bases 10L, 10R, with their bottom surfaces fixed to the bottom surfaces of the left and right foot receiving portions 20L, 20R. The protrusions 22L, 22R are fitted to the inner rings of the ball bearings 32L, 32R, for example, by press-fitting. The left and right bases 10L, 10R are provided with pivot holes THL, THR corresponding to the positions and outer diameters of the protrusions 32L, 32R, and the outer rings of the ball bearings 32L, 32R are fitted to the inner walls of the pivot holes THL, THR, for example, by press-fitting.

[0024] Elastic members 38L, 38R are provided around the ball bearings 32L, 32R by wrapping the outer walls of the ball bearings 32L, 32R in a ring shape. In this embodiment, the elastic members 38L, 38R are made of an elastic material such as a spring or PU elastomer. Ring-shaped, bottomed grooves GL, GR are provided on the heel-side top surfaces of the bases 10L, 10R, respectively, and stoppers ST are provided within the grooves GL, GR to lock one end of the elastic members 38L, 38R so that the elastic members 38L, 38R are compressed at one end by rotation of the foot accommodation sections 20L, 20R. As a result, when the user rotates the foot accommodation sections 20L, 20R outward to the left or right around the center of the rotating sections 30L, 30R as an axis, the elastic members 38L, 38R are compressed according to the degree of rotation, i.e., the magnitude of the rotation angle, and a repulsive force is generated, and by enduring this repulsive force, training for correcting the lower limbs becomes possible. In this embodiment, the ball bearings 32L, 32R correspond to, for example, a "second bearing" recited in the claims.

[0025] Bearing covers 34L, 34R are arranged on the underside of the pivot holes THL, THR, and locking projections SP (see Figure 6) with screw holes are erected from the bottom surfaces thereof toward the foot accommodating sections 20L, 20R. The locking projections SP are screwed into screw holes provided on the bottom surfaces of the foot accommodating sections 20L, 20R within the protrusions 32L, 32R, thereby rotatably fixing the foot accommodating sections 20L, 20R to the bases 10L, 10R.

[0026] <Detailed structure of the sliding auxiliary part> In response to the pivoting parts 30L, 30R being provided at the rear end part near the center of the bases 10L, 10R in correspondence with the position of the user's heels, a sliding assist part 80 is provided on the back surface of the foot accommodating parts 20L, 20R to ensure that the tip of the foot accommodating parts 20L, 20R moves smoothly in an arc on the bases 10L, 10R.

[0027] As shown in FIGS. 4 to 6, the slide assist units 80L, 80R include microbearings 82La-82Le and 82Ra-82Re provided on the rear surfaces of the foot accommodation units 20L, 20R in recesses in the bases 10L, 10R so as to be interposed between the microbearings and the bases 10L, 10R. The microbearings 82La-82Le and 82Ra-82Re are arranged along the arc-shaped path of the tip of the foot accommodation unit 20L, 20R. In this embodiment, the microbearings are arranged in two rows on the rear surfaces of the foot accommodation units 20L, 20R. The microbearings 82La-82Lc and 82Ra-82Rc are arranged at approximately equal intervals so as to form a gentle arc in the approximate center region of the rear surfaces of the foot accommodation units 20L, 20R. The microbearings 82Ld-82Le and 82Rd-82Re are arranged so as to form a gentle arc in the region near the tip of the rear surfaces of the foot accommodation units 20L, 20R. This allows the foot receiving sections 20L, 20R to smoothly slide along the side walls SW on the bases 10L, 10R via the outer rings of the microbearings 82La to 82Le and 82Ra to 82Re in response to the rotation of the rotating sections 30L, 30R.

[0028] In this way, the slide assisting parts 80L, 80R assist the foot accommodation parts 20L, 20R in sliding smoothly on the bases 10L, 10R in response to the rotation of the rotating parts 30L, 30R, allowing the user to use the training device 1 without feeling any stress. In this embodiment, the microbearings 82La to 82Le and 82Ra to 82Re correspond to, for example, the "first bearing" recited in the claims.

[0029] In the sliding assist units 80L, 80R of this embodiment, an example has been given in which five microbearings are arranged in two rows in each of the left and right foot storage units 20L, 20R, but this is not limited to this, and the number of microbearings may be four or less, six or more, or in one row or three or more rows depending on the torque of the rotating unit, the size of the foot storage unit, the weight and muscle strength of the user, etc.

[0030] <How to assemble> 6 shows an example of an exploded perspective view of the training device 1 according to this embodiment. An example of a method for assembling the training device 1 will be described with reference to FIG.

[0031] First, hinges 210 are attached to the bases 10L, 10R to set them into a foldable state. Two holes are drilled in each of the short side walls of the bottom shell 214 included in the hinges 210. Cylindrical pin receivers (not shown) with elastic bodies, such as springs (not shown), embedded in the bottom of the bottom shell 214 are provided inside the bottom shell 214 corresponding to these holes. A pin 216, made of, for example, stainless steel, is inserted into this pin receiver. Recesses for attaching the hinges 210 are provided at the opposing ends of the bases 10L, 10R, and pin holes (not shown) are drilled at both ends. The open ends of the pins 216 are inserted into these pin holes, respectively, to attach the bottom shell 214 to the recesses of the bases 10L, 10R. This allows the hinge covers 212 to fit into the bottom shell 214, completing the hinge installation. Next, the slide assist units 80L, 80R are attached to the rear surfaces of the left and right foot storage units 20L, 20R. The sliding assisting parts 80L, 80R include a micro-bearing 82, an inner ring fixing shaft 84, and a small cover 86, and the inner ring fixing shaft 84 is attached to the inner ring of the micro-bearing 82 by, for example, press-fitting, and both ends of the inner ring fixing shaft 84 are passed through slits arranged opposite each other in the wall surface of the small cover 86, thereby attaching the small cover 86 to the back surface of the foot accommodating parts 20L, 20R while the micro-bearing 82 is supported by the small cover 86.

[0032] Furthermore, the rotating parts 30L, 30R are attached between the bases 10L, 10R and the foot receiving parts 20L, 20R.

[0033] First, the outer rings of the ball bearings 32L and 32R are attached to the bases 10L and 10R by, for example, press-fitting.

[0034] Next, elastic members are placed in the ring-shaped grooves GL and GR on the bases 10L and 10R. In this embodiment, springs 38L and 38R are used as the elastic members. More specifically, the springs 38L and 38R are positioned so that both ends of the springs abut against the stoppers ST, and then placed in the grooves GL and GR on the bases 10L and 10R.

[0035] Subsequently, the protruding portions 22L, 22R of the left and right foot receiving portions 20L, 20R are attached to the inner rings of the ball bearings 32L, 32R by, for example, press-fitting.

[0036] Furthermore, the bases 10L, 10R and the foot housings 20L, 20R are locked together with the bearing covers 34L, 34R. In the example shown in Fig. 6, three spacers SP with screw holes are provided upright on the upper surfaces of the bearing covers 34L, 34R, and screw holes corresponding to the screw holes in the spacers SP are also provided in the protruding portions 22L, 22R of the foot housings 20L, 20R, and after aligning these screw holes, screws BS are inserted and turned from the lower side of the bases 10L, 10R to fasten the bases 10L, 10R and the foot housings 20L, 20R with the screws BS. Fixing rings 36L, 36R are fitted around the back surfaces of the bearing covers 34L, 34R to protect the bearing covers 34L, 34R.

[0037] Thereafter, anti-slip members (slip stoppers) 12, 13 are attached to each corner and other areas of the back surface of the bases 10L, 10R, and further, magnets 14 are attached to each corner of the back surface of the bases 10L, 10R, for example, to the inside of the slip stoppers 12. The magnets 14 attract each other with magnetic force when folding the training device 1 after training is completed, contributing to secure storage.

[0038] (2) Methods of using training equipment and training methods A method of using the training device 1 of the above-described embodiment will be described as an embodiment of a training method using the training device 1 of the present embodiment. First, the training device 1 is taken out, and if it is folded, it is unfolded and placed on a flat surface to prepare for training (S0).

[0039] The flat surface may be a floor, balcony, living room, or the like within a residential space, or may be a paved road outside the residential space, for example.

[0040] Next, the foot supports 120L, 120R are set in the foot storage compartments 20L, 20R, and the user places their left and right feet on them and stands on the training device 1 (S1). At this time, it is preferable to place the rear ends of the heels on the rear ends of the foot supports 120L, 120R and stand on the heels. Foot supports 120L, 120R are usually prepared to fit a standard body shape, but it is preferable to prepare custom-made ones that fit the user's foot shape if possible.

[0041] Once you have confirmed that you are standing safely on the training equipment 1, make sure that the opening angle indicator indicates an opening angle of 0°, hang your hands down naturally or place them on an assistive object (such as a chair or wall), and start training (S2).

[0042] Specifically, the user spreads both feet left and right from the tip, with the heels as the axis (S3). This causes the feet 20L, 120R to rotate left and right around the heels as shown by arrows AL and AR in Fig. 7. A rotation angle scale 70 is displayed at the tip of the base 10, so the user can rotate the feet 20L, 120R while visually checking the rotation angle of the feet 20L, 120R.

[0043] Because the rotating parts 30L, 30R are provided with ball bearings 32L, 32R, the feet 20L, 120R start to rotate smoothly at the beginning. However, because the rotating parts 30L, 30R are provided with springs 38L, 38R, as the legs move apart more (the rotation angle increases), the springs 38L, 38R are compressed, increasing the repulsive force, which makes it gradually difficult to continue the rotation and eventually stops the rotation.

[0044] When the rotation stops, the user must remain as still as possible against the repulsive forces of springs 38L and 38R. This exercise trains the user's thigh muscles. More specifically, as shown in Figure 8, when the user rotates both feet around the heels, the tibia and femur of both feet also rotate in response to the heel rotation, and the small and large rotators work together to twist the thigh muscles and piriformis muscles outward from the body's central axis. This allows the user to bend the shape of both legs, achieving the training objective. Furthermore, with continued, diligent daily training, the human body's muscles and skeleton, particularly the legs and buttocks, can gradually change, eventually correcting bow legs and knock-knees. Figure 8 shows a schematic diagram of the skeleton of a bow-legged user on the left and a schematic diagram of a healthy person on the right.

[0045] The rotation angle and stationary duration can be set arbitrarily depending on the user's physical strength and age, but the following training method is recommended:

[0046] Once both legs are rotated to the limit where they can withstand the repulsive force of springs 38L and 38R, they are left standing there for a predetermined time, for example, 5 seconds (S4). At this time, the larger the opening angle, the greater the need to apply force to the leg muscles and buttock muscles, which strengthens the leg muscles and buttock muscles and at the same time brings the leg bones closer to their normal position.

[0047] After standing still for five seconds, the feet are relaxed, and the foot storage sections 20L, 120R are returned to their starting positions by the bias of the springs 38L, 38R (S5). By relaxing the feet, the ball bearings 32L, 32R of the rotation section are rotated in the reverse direction by the bias of the springs 38L, 38R, and quickly return to their original starting positions. At the same time, the outer rings of the microbearings 82La-82Le and 82Ra-82Re included in the slide assist section 80 on the back surface of the foot storage sections 20L, 20R rotate, and the portion of the foot section 20L, 120R in front of the heel also quickly returns to the starting position.

[0048] After the series of movements is completed, the user repeats the movements S3 to S6 (S6) according to the user's physical time availability (after taking an appropriate rest). The number of repetitions depends on the user's age, degree of abnormality, physical strength, etc., but it is desirable to repeat the movements for about 30 minutes a day (about 200 times).

[0049] The training device 1 according to the above embodiment has the following advantages: (1) The foot storage section is rotatably attached to a flat base, so it can be placed on any flat surface in a living space, such as a floor, balcony, or living room, making it easy to use and allowing for stable training. (2) The vertical position of both heels is fixed, and the toes also follow a predetermined path. Therefore, by simply applying force from the heels to the toes in an outward direction, stress-free, short, one-off training can be performed, correcting abnormal leg shapes caused by abnormal posture, such as bow legs and knock-knees. (3) The rotation angle of the foot storage unit can be checked during training, allowing the progress of training to be quantified and understood. This allows for safe and reasonable training, and users can set their own goals, which helps maintain and improve their motivation. (4) The foot support has a gently shaped protrusion that corresponds to the arch shape of a healthy person's foot, making it possible to correct flat feet and improve the foot structure of users with flat feet or abnormal ankle bones. This is particularly effective if a custom-made foot support is available. (5) Because it is foldable, it takes up little space and can be easily stored in small spaces. (6) If most of the parts are made of resin or plastic, the main body can be made lightweight, making it easy to carry, allowing you to train anytime, anywhere and improve your leg style. In the above-mentioned embodiment, the base 10, hinge cover 212, bottom shell 214, foot storage compartments 20L, 20R, bearing covers 34L, 34R, and small covers for the micro-bearings are all made of synthetic resin, such as ABS resin, and the foot supports 120L, 120R and anti-slip members (slip stoppers) 12, 13 are made of rubber.

[0050] While the present invention has been described above with reference to the accompanying drawings, these drawings are provided for the purpose of facilitating understanding of the invention and are not intended to limit the scope of the claims of the present invention. Those skilled in the art may make various modifications, equivalent substitutions, or improvements without departing from the scope and spirit of the present invention.

[0051] For example, in the above embodiment, a base 10 that can be folded along the center line of the hinge 210 is used, but the basic performance can be achieved not only by the foldable method, but also by a flat type in which each component is assembled on a single common base.

[0052] Furthermore, in the above embodiment, the left and right long sides of the hinge 210 are set as indicators showing the starting point of the rotation angle, but this is not limited thereto, and the indicators may be set at any position on the foot housing sections 20L, 20L as long as they can indicate the starting point of the rotation angle. Furthermore, in the above embodiment, the scales provided on the upper surface of the base corresponding to the tip of the foot housing section are printed with rotation angles in 5° increments, but this is not limited thereto, and rotation angles less than 5° and rotation angles greater than 5° may be printed. [Explanation of symbols]

[0053] 1: Training equipment 10: Foundation 10L: Left base part 10R: Right base part 12: Anti-slip material (slip stopper) 20, 20L, 20R: Foot storage area 22L, 22R: Protrusion 30, 30L, 30R: Rotating part 32L, 32R: Ball bearing (second bearing) 34L, 34R: Bearing cover 38L, 38R: Spring (elastic member) 70: Rotation angle scale 80, 80L, 80R: Sliding auxiliary part 82Ld~82Le, 82Rd~82Re: Micro bearing (first bearing) 84: Inner ring fixed shaft 86: Small cover 120, 120L, 120R: Foot support 150: Handle 210: Hinge 212: Hinge cover 214: Bottom shell 216: (Stainless steel) pin EL: Raised part SW: Side wall

Claims

1. The base and a pair of foot receiving sections attached to an upper surface of the base and capable of receiving the left and right feet of a user via foot supports; a pair of pivoting parts provided on the heel side of the foot accommodating part and pivotally connecting the base and the foot accommodating part; a scale provided on the upper surface of the base corresponding to the tip of the foot accommodating portion, the scale visually indicating the magnitude of the rotation angle of the foot accommodating portion; a pair of slide assisting parts provided at the tip side of the foot accommodating part to assist the tip of the foot accommodating part in sliding on the base due to the rotation of the rotating part; a recess provided on the upper surface of the base and having an arc-shaped side wall corresponding to the movement locus of the tip end side of the foot accommodating section; Equipped with the slide assisting portion includes a first bearing having an outer ring interposed between the foot accommodating portion and the base and rotating within the recess in response to rotation of the foot accommodating portion, The pivoting section includes a second bearing that allows the user to smoothly pivot the foot accommodating section, and an elastic member that expands and contracts in response to the pivoting of the foot accommodating section and whose repulsive force increases as the pivot angle increases due to the pivoting of the foot accommodating section, The top surface of the foot support is provided with a raised arch to correct the user's flat feet, the first bearings are arranged in a plurality of rows on the rear surface of the foot accommodating section along a movement path within the recess at the tip of the foot accommodating section, The training device is configured such that the elastic member contacts the second bearing and circles around the second bearing.

2. The training device according to claim 1 , wherein the base is configured to include two rectangular plates to which the pair of foot receiving sections are respectively attached, and a hinge that foldably connects the two rectangular plates.

3. 2. The training device according to claim 1, wherein edges of the opposing side surfaces of the pair of foot receiving sections form indicators that indicate the starting point of the rotation angle at the start of use.

4. 3. The training device according to claim 2, wherein edges of the opposing side surfaces of the pair of foot receiving sections form indicators that indicate the starting point of the rotation angle at the start of use.

5. A training method using the training device according to any one of claims 1 to 4, comprising: (S1): Standing on the training equipment with your left and right feet placed on the foot storage compartments via foot supports; (S2); Start training with both hands hanging naturally or placed on any support; (S3): Spread both feet to the left and right from the tip, with the heel as the axis. (S4): Rotating both feet to the limit of their resistance to the repulsive force of the elastic members and then stopping them in place for a predetermined period of time; (S5): After standing still for a predetermined time, relax both feet and return the foot receiving section to the starting position by the biasing force of the elastic member. Training methods including.

6. The training method according to claim 5, further comprising: (S6): repeating (S1) to (S5).

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