Legless chair-type training device

Abstract

To provide a legless chair type training device enabling stable abdominal muscle exercise and allowing a user to perform abdominal muscle exercise of swinging back and forth and left to right without having to reseat.SOLUTION: A legless chair-type training device 1 comprises an outer peripheral part 10, a top part connected to the outer peripheral part 10, and a bottom part 30 connected to the outer peripheral part 10 and disposed on an opposite side of the top part with respect to the outer peripheral part 10. The bottom part 30 is curved so as to protrude to an opposite side of the top part with respect to the outer peripheral part 10. The bottom part 30 includes an outer edge 31 and a protrusion 32 protruding from the outer edge 31 toward the opposite side of the top part. The protrusion 32 is configured in a cross shape intersecting at a center in the front-rear direction and the left-right direction of the legless chair-type training machine 1.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a chair-type training device. [Background technology]

[0002] Swingable exercise equipment for supporting abdominal muscle exercises has been proposed in the past. For example, Utility Model Registration No. 3177291 (Patent Document 1) describes an abdominal training device that enhances the effectiveness of abdominal muscle exercises by changing the direction of the swing. The abdominal training device described in the publication has parallel arc-shaped members on the bottom surface of the seat plate that allow for a unidirectional swing motion. Therefore, the arc-shaped members limit the direction of the swing motion to a unidirectional direction. This allows for stable abdominal muscle exercises. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3177291 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the abdominal training device described in the above publication, the direction of the rocking motion is limited to a certain direction by the arc-shaped member, so when switching the rocking direction between the front-to-back direction and the left-to-right direction, the user must reseat on the seat plate, and therefore it is not possible to perform abdominal exercises with rocking motion in the front-to-back direction and left-to-right direction without reseating the user.

[0005] The present invention has been made in consideration of the above-mentioned problems, and its purpose is to provide a chair-type training device that allows users to perform abdominal exercises stably and that allows users to perform abdominal exercises by rocking forward and backward and left and right without having to reseat. [Means for solving the problem]

[0006] The leg-chair-type training device of the present invention is a rocking leg-chair-type training device for supporting abdominal muscle exercises. The leg-chair-type training device includes an outer periphery, a top surface connected to the outer periphery, and a bottom surface connected to the outer periphery and located on the opposite side of the top surface with respect to the outer periphery. The bottom surface is curved so as to protrude on the opposite side of the top surface with respect to the outer periphery. The bottom surface includes an outer edge and a protruding portion protruding from the outer edge on the opposite side of the top surface. The protruding portion is configured in a cross shape that intersects at the center in the front-to-back and left-to-right directions of the leg-chair-type training device. [Effects of the Invention]

[0007] The chair-type training device of the present invention allows the user to perform abdominal muscle exercises stably, and allows the user to perform abdominal muscle exercises that involve rocking in the front-to-back and left-to-right directions without having to reseat. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view showing the configuration of a chair-type training apparatus according to an embodiment, viewed from the top surface side. [Figure 2] 1 is a perspective view showing the configuration of a chair-type training apparatus according to an embodiment, viewed from the bottom side. [Figure 3] 1 is a left side view showing a schematic configuration of a chair-type training apparatus according to an embodiment. [Figure 4] 1 is a bottom view showing a schematic configuration of a chair-type training apparatus according to an embodiment. [Figure 5] 1 is a front view showing a schematic configuration of a chair-type training apparatus according to an embodiment. [Figure 6] 1 is a rear view showing a schematic configuration of a chair-type training apparatus according to an embodiment. [Figure 7] FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 5. [Figure 8]FIG. 10 is a left side view schematically showing the state in which the chair-type training apparatus according to the embodiment swings in the front-to-rear direction. [Figure 9] FIG. 10 is a rear view schematically showing the state in which the chair-type training apparatus according to the embodiment swings left and right. [Figure 10] FIG. 10 is a perspective view showing the configuration of a modified example of the chair-type training apparatus according to the embodiment, viewed from the top surface side. [Figure 11] FIG. 10 is a perspective view showing the configuration of a modified example of the chair-type training apparatus according to the embodiment, viewed from the bottom side. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Unless otherwise specified, the same or corresponding parts in the following drawings will be designated by the same reference numerals, and the description thereof will not be repeated.

[0010] The structure of a legless chair-type training machine 1 according to an embodiment will be described with reference to Figures 1 to 7. The legless chair-type training machine 1 according to the embodiment is a swingable exercise machine for supporting abdominal muscle exercises. The legless chair-type training machine 1 is configured to be swingable in both the front-to-back direction D1 and the left-to-right direction D2 of the legless chair-type training machine 1.

[0011] The legless chair-type training apparatus 1 according to the embodiment is configured to be self-standing. That is, the legless chair-type training apparatus 1 is configured to be placed on the floor without tilting in either the front-to-back direction D1 or the left-to-right direction D2 when not in use by the user. The legless chair-type training apparatus 1 according to the embodiment can be used not only as an exercise machine but also as a legless chair.

[0012] As shown in Figures 1 and 2, the legless chair-type training apparatus 1 according to the embodiment includes an outer periphery 10, a top surface 20, and a bottom surface 30. The outer periphery 10 is disposed between the top surface 20 and the bottom surface 30. The outer periphery 10 is disposed on the front, back, right side, and left side of the legless chair-type training apparatus 1. The outer periphery 10 is disposed continuously in the circumferential direction of the legless chair-type training apparatus 1.

[0013] The top surface portion 20 is connected to the outer peripheral portion 10. The top surface portion 20 is arranged on the opposite side of the outer peripheral portion 10 from the bottom surface portion 30. The top surface portion 20 is connected to the upper end of the outer peripheral portion 10. The top surface portion 20 is arranged on the top surface of the legless chair type training apparatus 1. The top surface portion 20 forms the seat surface of the legless chair type training apparatus 1.

[0014] The bottom surface portion 30 is connected to the outer peripheral portion 10. The bottom surface portion 30 is arranged on the opposite side of the outer peripheral portion 10 from the top surface portion 20. The bottom surface portion 30 is connected to the lower end of the outer peripheral portion 10. The bottom surface portion 30 is arranged on the underside of the chair-type training apparatus 1.

[0015] In the legless chair-type training apparatus 1, the front-to-back direction D1 is the direction in which the front and back face each other, the left-to-right direction D2 is the direction in which the right side view and the left side view face each other, and the up-to-down direction D3 is the direction in which the top face and the bottom face face each other. In the legless chair-type training apparatus 1, the top surface 20, and the bottom surface 30, the front-to-back direction D1, the left-to-right direction D2, and the up-to-down direction D3 are all consistent with each other.

[0016] 1 to 3, the bottom surface portion 30 is curved so as to protrude from the outer periphery 10 on the side opposite to the top surface portion 20. In other words, the bottom surface portion 30 is curved so as to protrude downward from the outer periphery 10 of the legless chair type training apparatus 1. The bottom surface portion 30 is configured in a substantially semi-ellipsoid shape.

[0017] The bottom surface portion 30 includes an outer edge portion 31 and a protruding portion 32. The outer edge portion 31 forms the outer edge of the bottom surface portion 30. The protruding portion 32 protrudes from the outer edge portion 31 to the side opposite the top surface portion 20. In other words, the protruding portion 32 protrudes outward from the outer edge portion 31. The protruding portion 32 protrudes smoothly from the outer edge portion 31. In the bottom surface portion 30, the surface area of ​​the protruding portion 32 is larger than the surface area of ​​the portion other than the protruding portion 32.

[0018] 3, in the front-to-rear direction D1, the curvature of the rear end E2 of the bottom surface portion 30 is greater than the curvature of the front end E1 of the bottom surface portion 30. In other words, in the front-to-rear direction D1, the degree of curvature of the rear end E2 of the bottom surface portion 30 is greater than the degree of curvature of the front end E1 of the bottom surface portion 30. In the front-to-rear direction D1, a portion P adjacent to the rear end E2 of the bottom surface portion 30 is curved so as to protrude toward the top surface portion 20.

[0019] As shown in Figure 4, the protrusion 32 is configured in a cross shape that intersects at the center of the front-rear direction D1 and the left-right direction D2 of the chair-type training apparatus 1. The protrusion 32 extends in the front-rear direction D1 and the left-right direction D2 from the center of the front-rear direction D1 and the left-right direction D2. The center of the protrusion 32 in the front-rear direction D1 and the left-right direction D2 is configured to be approximately flat. At the center of the protrusion 32 in the front-rear direction D1 and the left-right direction D2, the radius of curvature of the protrusion 32 in the front-rear direction D1 is, for example, 1000 mm or more.

[0020] The maximum width of the portion of the protrusion 32 extending in the front-to-rear direction D1 is larger than the maximum width of the portion of the protrusion 32 extending in the left-to-right direction D2. The maximum width of the portion of the protrusion 32 extending in the front-to-rear direction D1 is larger than half and smaller than three-quarters of the maximum dimension of the bottom surface 30 in the left-to-right direction D2. The maximum width of the portion of the protrusion 32 extending in the left-to-right direction D2 is larger than one-third and smaller than one-half of the maximum dimension of the bottom surface 30 in the front-to-rear direction D1.

[0021] The protruding portion 32 includes a pair of first extending portions 321, a pair of second extending portions 322, and a central portion 323. The pair of first extending portions 321 and the pair of second extending portions 322 are each connected to the central portion 323. The central portion 323 is disposed at the center of the bottom surface portion 30 in the front-rear direction D1 and the left-right direction D2.

[0022] In a plan view, each of the pair of first extending portions 321 extends from the central portion 323 in the front-rear direction D1. In a plan view, each of the pair of second extending portions 322 extends from the central portion 323 in the left-right direction D2 of the bottom surface portion 30. The maximum width of the first extending portion 321 is greater than the maximum width of the second extending portion 322. The maximum width of the first extending portion 321 is greater than half and less than three-quarters of the maximum dimension of the bottom surface portion 30 in the left-right direction D2. The maximum width of the second extending portion 322 is greater than one-third and less than one-half of the maximum dimension of the bottom surface portion 30 in the front-rear direction D1.

[0023] 5 and 6, the curvature of the protrusion 32 in the left-right direction D2 is greater than the curvature of the protrusion 32 in the front-rear direction D1. In other words, the degree of curvature of the protrusion 32 in the left-right direction D2 is greater than the degree of curvature of the protrusion 32 in the front-rear direction D1.

[0024] 1 and 7, the top surface portion 20 is recessed toward the bottom surface portion 30 in the front-to-rear direction D1 and the left-to-right direction D2. The top surface portion 20 is most recessed at the center of the top surface portion 20. That is, the top surface portion 20 is most recessed at the center of the top surface portion 20 in the front-to-rear direction D1 and the center of the top surface portion 20 in the left-to-right direction D2. In other words, the top surface portion 20 rises from the center toward the front and back in the front-to-rear direction D1 of the top surface portion 20, and rises from the center toward the right and left sides in the left-to-right direction D2 of the top surface portion 20.

[0025] The top surface 20 includes a seat portion 21 and a backrest portion 22. The seat portion 21 is configured to be able to support the buttocks of a user. The backrest portion 22 is configured to be able to support the waist of a user. The seat portion 21 and the backrest portion 22 are arranged side by side in the front-to-rear direction D1. The seat portion 21 is arranged in front of the backrest portion 22 in the front-to-rear direction D1. The backrest portion 22 is arranged behind the seat portion 21 in the front-to-rear direction D1.

[0026] In the front-to-rear direction D1, the tilt angle of the backrest 22 is larger than the tilt angle of the seat 21. The tilt angle of the backrest 22 is the angle in the front-to-rear direction D1 between the plane of the floor on which the legless chair-type training apparatus 1 is placed when it is standing upright and the backrest 22. The tilt angle of the seat 21 is the angle in the front-to-rear direction D1 between the plane of the floor on which the legless chair-type training apparatus 1 is placed when it is standing upright and the seat 21.

[0027] The legless chair-type training apparatus 1 according to the embodiment includes a cover material 40, a base material 50, a first cushion material 60, and a second cushion material 70. The cover material 40 is configured to accommodate the base material 50, the first cushion material 60, and the second cushion material 70. The cover material 40 is made of, for example, cloth. The base material 50, the first cushion material 60, and the second cushion material 70 are layered in this order: base material 50, first cushion material 60, second cushion material 70. The base material 50 is made of, for example, polystyrene foam. The first cushion material 60 is layered on the base material 50. The first cushion material 60 is made of, for example, urethane. The second cushion material 70 is layered on the first cushion material 60. The second cushion material 70 is made of, for example, chip urethane.

[0028] The manner in which the legless chair-type training apparatus 1 according to the embodiment swings will be described with reference to FIGS.

[0029] FIG. 8 shows the leg chair-type training apparatus 1 according to the embodiment swinging in the front-to-back direction D1. In FIG. 8, the neutral state of the leg chair-type training apparatus 1 is indicated by a solid line, and the state of the leg chair-type training apparatus 1 swinging back and forth is indicated by a dashed line. As shown in FIG. 8, when a user 100 is seated on the leg chair-type training apparatus 1, the leg chair-type training apparatus 1 swings in the front-to-back direction D1, thereby performing abdominal exercises swinging in the front-to-back direction D1. At this time, the portion of the protrusion 32 extending in the front-to-back direction D1 comes into contact with the floor, and therefore the portion of the protrusion 32 extending in the front-to-back direction D1 supports the abdominal exercise swinging in the front-to-back direction D1. This allows the user to perform stable abdominal exercises in the front-to-back direction D1 of the leg chair-type training apparatus 1.

[0030] FIG. 9 shows the leg chair-type training apparatus 1 according to the embodiment swinging in the left-right direction D2. In FIG. 9, the neutral state of the leg chair-type training apparatus 1 is indicated by a solid line, and the leg chair-type training apparatus 1 swinging left and right is indicated by a dashed line. As shown in FIG. 9, when a user 100 is seated on the leg chair-type training apparatus 1, the leg chair-type training apparatus 1 swings left and right in the direction D2, thereby performing abdominal exercises swinging in the left-right direction D2. At this time, the portions of the protrusions 32 extending in the left-right direction D2 come into contact with the floor, and therefore the portions of the protrusions 32 extending in the left-right direction D2 support the abdominal exercises swinging in the left-right direction D2. This allows the user to perform stable abdominal exercises in the left-right direction D2 of the leg chair-type training apparatus 1.

[0031] 8 and 9, the user 100 can perform abdominal exercises by rocking the chair-type training apparatus 1 in the front-to-back direction D1 and abdominal exercises by rocking the chair-type training apparatus 1 in the left-to-right direction D2 without having to reseat on the chair-type training apparatus 1. In other words, the user 100 can perform abdominal exercises by rocking the chair-type training apparatus 1 in the front-to-back direction D1 and abdominal exercises by rocking the chair-type training apparatus 1 in the left-to-right direction D2 without having to reseat on the chair-type training apparatus 1.

[0032] Next, the effects of the chair-type training apparatus 1 according to the embodiment will be described.

[0033] According to the leg-type training apparatus 1 of this embodiment, the protrusion 32 is configured in a cross shape that intersects at the center in the front-rear direction D1 and the left-right direction D2 of the leg-type training apparatus 1. Therefore, the portion of the protrusion 32 extending in the front-rear direction D1 supports abdominal exercises that involve rocking in the front-rear direction D1, and the portion of the protrusion 32 extending in the left-right direction D2 supports abdominal exercises that involve rocking in the left-right direction D2. This allows for support of abdominal exercises that involve rocking in the front-rear direction D1 and the left-right direction D2 of the leg-type training apparatus 1. This allows for stable abdominal exercises. Furthermore, stable abdominal exercises in the front-rear direction D1 and the left-right direction D2 of the leg-type training apparatus 1 can guide beginners to correct abdominal exercises.

[0034] In addition, it is possible to perform abdominal muscle exercises by rocking the chair-type training apparatus 1 in the front-to-back direction D1 and in the left-to-right direction D2. Therefore, the user can perform abdominal muscle exercises by rocking the chair-type training apparatus 1 in the front-to-back direction D1 and the left-to-right direction D2 without having to reseat.

[0035] In the chair-type training apparatus 1 according to the embodiment, the curvature of the protruding portion 32 in the left-right direction D2 is greater than the curvature of the protruding portion 32 in the front-back direction D1. Due to the structure of the human body, it is more difficult for a user to swing in the left-right direction D2 than in the front-back direction D1 when seated. Therefore, by making the curvature of the protruding portion 32 in the left-right direction D2, where it is difficult to swing, greater than the curvature of the protruding portion 32 in the front-back direction D1, where it is easier to swing, it is possible to make it easier to swing in the left-right direction D2. This makes it easier to perform abdominal muscle exercises by swinging in the left-right direction D2, where it is difficult to swing.

[0036] According to the leg chair-type training apparatus 1 of the embodiment, the curvature of the rear end E2 of the bottom surface portion 30 in the front-rear direction D1 is greater than the curvature of the front end E1 of the bottom surface portion 30. Therefore, when the leg chair-type training apparatus 1 swings in the front-rear direction D1 and the rear end E2 of the bottom surface portion 30 comes into contact with the floor, the leg chair-type training apparatus 1 can be reliably prevented from swinging too far rearward. This makes it possible to prevent the user 100 from falling over.

[0037] Furthermore, in the front-rear direction D1, the portion P adjacent to the rear end E2 of the bottom surface portion 30 is curved so as to protrude toward the top surface portion 20. This makes it easy to increase the curvature of the rear end E2 of the bottom surface portion 30 in the front-rear direction D1.

[0038] According to the legless chair-type training apparatus 1 of this embodiment, the top surface 20 is recessed toward the bottom surface 30 in the front-to-back direction D1 and the left-to-right direction D2. Therefore, when a user sits down and leans in either the front-to-back direction D1 or the left-to-right direction D2, the legless chair-type training apparatus 1 can be tilted in either the front-to-back direction D1 or the left-to-right direction D2. This makes it easy to swing the legless chair-type training apparatus 1 in the front-to-back direction D1 and the left-to-right direction D2. This makes it easy to perform abdominal muscle exercises by swinging in the front-to-back direction D1 and the left-to-right direction D2.

[0039] Furthermore, the angle of inclination of the backrest 22 in the front-to-rear direction D1 is greater than the angle of inclination of the seat 21. Due to the structure of the human body, it is more difficult for a user to swing rearward than forward when seated. Therefore, by making the angle of inclination of the backrest 22, which is located at the rear where it is difficult to swing, greater than the angle of inclination of the seat 21, which is located at the front where it is easy to swing, it is possible to make it easier to swing rearward, where it is difficult to swing. This makes it easier to exercise the abdominal muscles by swinging rearward, where it is difficult to swing.

[0040] The legless chair-type training machine 1 according to the embodiment is configured to be self-standing. This makes it easy for the user to sit on the legless chair-type training machine 1 when starting abdominal exercises. This makes it easy for the user to start abdominal exercises.

[0041] Next, a modified example of the leg-type training apparatus 1 according to the embodiment will be described with reference to Figures 10 and 11. Unless otherwise specified, the modified example of the leg-type training apparatus 1 according to the embodiment has the same structure and effects as the leg-type training apparatus 1 according to the above embodiment.

[0042] 10 and 11, the modified version of the leg chair-type training apparatus 1 according to the embodiment is configured as a cross shape that intersects at the center in the front-rear direction D1 and the left-right direction D2 of the leg chair-type training apparatus 1. In other words, the outer peripheral portion 10, the top surface portion 20, and the protruding portion 32 are configured as a cross shape that intersects at the center in the front-rear direction D1 and the left-right direction D2 of the leg chair-type training apparatus 1. In the modified version of the leg chair-type training apparatus 1 according to the embodiment, the outer edge portion 31 coincides with the outer edge of the protruding portion 32.

[0043] According to a modified example of the legless chair-type training apparatus 1 of the embodiment, the outer edge 31 coincides with the outer edge of the protrusion 32. Therefore, the bottom surface 30 does not have a portion that is located outside the protrusion 32. Therefore, compared to when the bottom surface 30 has a portion that is located outside the protrusion 32, it is possible to reduce the amount of material that makes up the legless chair-type training apparatus 1. This makes it possible to reduce costs.

[0044] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims, not by the above description, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0045] 1 chair-type training equipment, 10 outer periphery, 20 top surface, 21 seat, 22 backrest, 30 bottom, 31 outer edge, 32 protruding portion, 40 cover material, 50 base material, 60 first cushion material, 70 second cushion material, D1 front-to-back direction, D2 left-to-right direction, D3 up-down direction, E1 front end, E2 rear end.

Claims

1. A rocking chair-type training device for supporting abdominal exercises, The outer periphery and a top surface portion connected to the outer periphery; a bottom surface portion connected to the outer periphery and disposed on the opposite side of the outer periphery from the top surface portion, the bottom surface portion is curved relative to the outer periphery so as to protrude to the opposite side from the top surface portion, the bottom surface portion includes an outer edge portion and a protruding portion protruding from the outer edge portion to a side opposite to the top surface portion, The leg-type training apparatus has a cross-shaped protrusion that intersects at the center of the leg-type training apparatus in the front-to-back and left-to-right directions.

2. The chair-type training apparatus according to claim 1 , wherein the curvature of the protrusion in the left-right direction is greater than the curvature of the protrusion in the front-rear direction.

3. The chair-type training apparatus according to claim 1 or 2, wherein a curvature of a rear end of the bottom surface portion in the front-rear direction is greater than a curvature of a front end of the bottom surface portion.

4. the top surface portion is recessed toward the bottom surface portion in the front-rear direction and the left-right direction, and includes a seat portion and a backrest portion, The seat portion and the backrest portion are arranged side by side in the front-rear direction, The chair-type training apparatus according to claim 3 , wherein the angle of inclination of the backrest is greater than the angle of inclination of the seat in the front-rear direction.

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