Finger strength training device

Abstract

To provide a finger strength training device for facilitating the training of a horizontal balance.SOLUTION: A finger strength training device includes a disc body 20 that has a substantially spherical surface with a convex shape facing upward, and includes a finger rest 21a for placing fingers, and a palm rest 22 for placing a palm, formed thereon, and a bottom surface thereof is formed into a balance body 30, the bottom surface having a downwardly convex shape from an edge of the finger rest 21a of the disc body 20 and each portion of the surface being convex. Even when the finger strength training device 10 is tilted, it always touches the floor or the like somewhere, so that, in addition to the finger strength training, the training while maintaining balance allows a user to strengthen the core at the same time as the finger strength.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a finger strength training device that can vary the angle of load on the fingers of a hand. [Background technology]

[0002] A finger strength training device that can change the load angle on the fingers is known, as disclosed in Patent Document 1. This finger strength training device has a disk body whose surface is generally spherical and convex upward, and which is formed with a finger rest for placing fingers and a palm rest for placing the palm.

[0003] The disc also has a balance part that protrudes from the center of the back surface of the disc. The balance part is disclosed to be a cone or semi-cylindrical shape that is smaller than the outer shape of the medium, as well as a cone shape that is the same as the outer shape of the medium. You can train your horizontal balance by placing your hands on the surface of the board. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 7043018 Summary of the Invention [Problem to be solved by the invention]

[0005] When training for horizontal balance using finger strength training devices disclosed in prior art documents, the medium is supported only by the top of the balance part unless the top of the balance part and the edge of the board are in contact with the floor. Because this state is unstable, strong finger strength is required to maintain horizontal balance, making training difficult for beginners. In addition, since it can be tilted in any direction 360 degrees, if it leans toward the palm rest, it will bend the wrist deeply, which can cause pain.In addition, even in the case of a kamaboko shape, it can easily be tilted toward the palm rest, which will cause the wrist to bend deeply.

[0006] The present invention provides a finger strength training device that facilitates training of horizontal balance. [Means for solving the problem]

[0007] The present invention has a disc body whose surface is convex upward and approximately spherical, and which is formed with a finger rest for placing fingers and a palm rest for placing the palm, and whose underside is convex downward from the edge of the finger rest portion of the disc body, and which is a balanced body in which each portion of the surface is convex. In another embodiment of the present invention, the disk body has a substantially semicircular portion that serves as the finger rest, and the center of the palm rest does not coincide with the central portion of the semicircular portion.

[0008] In another embodiment of the present invention, the disk body is roughly circular, a roughly semicircular portion serves as the finger rest, and the center of the palm rest does not coincide with the center portion of the circle. Furthermore, in another embodiment of the present invention, the balancer has a shape in which the palm rest side of the board is less inclined than the finger rest side. In another embodiment of the present invention, the balancer has a portion whose cross section is linear in the direction from the palm rest to the finger rest on the board.

[0009] Furthermore, in another embodiment of the present invention, the balancer has a support portion that serves as a support to prevent the plate body from tilting. In another embodiment of the present invention, the support portion is located on a line extending from the finger rest to the palm rest on the board. Furthermore, in another embodiment of the present invention, the support portion is configured to be detachable from the balancer and a plurality of support portions can be attached.

[0010] In another embodiment of the present invention, the support portion is configured to make the disc body unable to tilt by attaching a plurality of support portions. Furthermore, in another embodiment of the present invention, the balance body has a larger curvature on the side of the central portion of the disc body than on the outside. In another embodiment of the present invention, the center of the finger rest is configured to substantially coincide with the top of the balancer.

[0011] Furthermore, in another embodiment of the present invention, the disc body is configured to have a fixture for fixing the palm of the hand. In another embodiment of the present invention, an air chamber is formed inside to enable elastic deformation. Furthermore, in another embodiment of the present invention, the underside of the balance body is formed with countless small protrusions, and the curve connecting the apex of one protrusion to the apex of the peripheral protrusions is configured to be convex downward. [Effects of the Invention]

[0012] The balance body of the finger strength training device of the present invention has a convex shape extending downward from the edge of the finger rest portion of the board body, and each portion of the surface is convex, so that the underside comes into contact with the floor or other surface at any position, and even at any inclination, it does not become extremely unstable, and training to maintain horizontal balance can be performed even when finger strength is insufficient. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a front view of a finger strength training device according to an embodiment of the present invention. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. 2 is a cross-sectional view of the balance body of the finger strength training device. [Figure 5]FIG. 10 is a front view of a finger strength training device according to a modified example. [Figure 6] FIG. [Figure 7] FIG. 2 is a cross-sectional front view of the balance body of the finger strength training device taken along line AA. [Figure 8] FIG. 5 is a cross-sectional front view of the balance body of the finger strength training device taken along line BB. [Figure 9] FIG. 10 is a front view of a finger strength training device according to a modified example. [Figure 10] FIG. [Figure 11] FIG. 10 is a cross-sectional view of a balance body of a finger strength training device according to a modified example. [Figure 12] FIG. 10 is a front view of a finger strength training device according to a modified example. [Figure 13] FIG. [Figure 14] FIG. 10 is a front view of the finger strength training device according to the modified example in a deformed state. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a front view of a finger strength training device according to one embodiment of the present invention, FIG. 2 shows a side view of the same finger strength training device, FIG. 3 shows a plan view of the same finger strength training device, and FIG. 4 shows a cross-sectional view of the balance body of the same finger strength training device. In the figure, the finger strength training device 10 has a circular outer periphery and spherical upper and lower surfaces, with a raised portion of the upper surface. When divided horizontally at the outermost periphery, the upper portion is called the disk body 20 and the lower portion is called the balance body 30.

[0015] Board 20 has inclined surface 21 that looks like a portion of the curved outer surface of a ball-sized sphere has been cut away, and a portion of this inclined surface 21 serves as finger rest 21a on which the fingers are spread and placed. For example, as shown in FIG. 3, in the case of a left hand, the positions where the fingers can rest are area S, area I, area M, area R, and area P. Because inclined surface 21 is spherical, the positions of area S, area I, area M, area R, and area P will change depending on the shape of the user's hand, the length of the fingers, and whether the user is right-handed or left-handed.

[0016] The raised portion is a base on which the palm is placed and is called the palm rest 22. The palm rest 22 has a cylindrical lower portion and a roughly spherical upper portion, and is fixed by embedding the cylindrical portion into a circular hole formed in part of the inclined surface 21 of the board 20. The protruding height of the palm rest 22 is formed to be higher by a step d than the highest zenith part of the finger rest 21a.

[0017] In this embodiment, the ball that serves as the basis for the outer curved surface of the inclined surface 21 is preferably a ball used in sports that involve handling the ball with one's hands, such as basketball, volleyball, handball, rugby, American football, or baseball. The finger strength training device 10 is disk-shaped, and the bulging dome surface is sometimes referred to as the upper surface 11 and the opposite side as the lower surface 12.

[0018] As described above, the finger strength training device 10 has a disc body 20, and the upper surface 11 of the finger strength training device 10 is a roughly spherical surface with an upwardly convex shape, and is formed with a finger rest 21a on which the fingers are placed and a palm rest 22 on which the palm is placed.

[0019] 3, the position of the center of gravity when the body is supported with fingers placed on parts S, I, M, R, and P is called the finger rest central axis 21a1. As shown in the figure, the finger rest central axis 21a1 is offset from the main body vertical central axis 21b, which is the center of the circular outer periphery of the disc body 20, and the palm rest vertical central axis 22a of the approximately spherical palm rest 22 is also offset from the main body vertical central axis 21b.

[0020] In this embodiment, the palm rest 22 is higher than the top of the disc body 20 by a step d, but it may be the same or slightly higher. Also, the upper end of the palm rest 22 is spherical, but it may also be flat.

[0021] The underside 12 of the finger strength training device 10 is a balance body 30, which is formed to have the curved outer surface of a sphere with a diameter of φ0, as shown in Figure 4. In other words, the underside of the finger strength training device 10 has a convex shape that extends downward from the edge of the disk body 20, which has a circular outer diameter, and the surface is a spherical surface.

[0022] Since the surface is spherical, all parts of the surface are convex. In this embodiment, since the disc body 20 has a circular outer diameter, the balance body 30 also has a circular outer diameter overall. However, as will be described later, if the disc body 20 does not have a circular outer diameter, it is sufficient that at least the edge of the finger rest 21a portion of the disc body 20 has a convex shape extending downward, and all parts of the surface are convex. This balancer 30 is formed for training in horizontal balance as one form of finger strength training.

[0023] In addition, a belt-like band-like fixture 23 can be attached to the board 20, and the finger strength training device 10 can be worn on the hand by inserting the fingers and palm between the belt-like fixture 23 and the finger rest 21a.

[0024] Next, we will explain how to use the device. When using the present invention, use one device with only one hand, or two devices, one on each hand, simultaneously. Place the entire pads of your fingers on the finger rests 21a, which are part of the inclined surface 21 of the board 20, and place your palm on the palm rest 22. The palm rest 22 prevents your wrist from bending at an unnatural angle. (i) By putting part of your body weight from above while in a push-up position or while kneeling, the load is distributed not only to the palm but also to the fingers, and by maintaining balance, you can train the strength and sensation of the fingers.

[0025] (b) Furthermore, by using the present invention in an upright position and placing it within easy reach, the strength and sensation of the fingers can be trained safely with less strain. (c) By providing the balance body 30, even if the finger strength training device 10 is tilted, it will always be in contact with the floor or other surface somewhere, and in addition to finger strength training, training while maintaining balance will enable the training of the core body at the same time as finger strength.

[0026] That is, all portions of the surface of at least the lower surface of the finger rest 21a of the balancer 30 are convex, so that when the finger strength training device 10 is tilted, it comes into contact with the floor or the like at the lowest point where balance is maintained.

[0027] For example, in the case of the balance parts disclosed in the conventional example, if the balance is lost, the top of the balance part and the outer edge of the finger strength training device will come into contact with the floor and stop, making it impossible to train by gradually tilting the device. In contrast, in the case of a balance body 30 in which the underside is convex downward from the edge of the finger rest 21a portion of the board body 20 and each portion of the surface is convex, the load on the incline is reduced at any point on the underside and balance is stabilized, making it possible to perform balance training or core training. The main body is the disc 20 with an inclined surface, but the inclined surface 21 may be curved or flat. The disc 20 is not limited to a disk, but may be a three-dimensional object made of various materials, not limited to wood, resin, or metal. The inclined surface 21 has a finger rest 21a, which serves as a guide for the fingers, preventing extreme and unnatural stress from being applied to the knuckles and allowing stress to be applied to the entire finger, not just specific parts such as the fingertips.

[0028] In addition, a palm rest 22 is provided to support the palm so that the palm is positioned higher than the fingers, and a step d is provided between the finger rest 21a and the palm rest 22, allowing the load to be applied to the fingers with the angle of the wrist relative to the palm naturally widened.

[0029] Thus, according to the present invention, the entire underside of the main body has a curved, inclined surface, which changes the contact point and the angle of the main body's horizontal axis, changing the angles between the central axes of the main body, palm rest, and finger rest and the main body's horizontal axis in all directions, front to back, left to right, and the distance between the central axes of the main body, palm rest, and finger rest also changes, allowing a load to be applied to the fingers.

[0030] In addition, by installing a fixture on the top of the main unit to secure the palm, the main unit can be worn on the hand, and in addition to doing finger push-ups on the floor, the inclined surface allows training by tilting the body against the wall. By tilting the body angle, the load can be changed, and therefore the training intensity can be varied.

[0031] FIG. 5 shows a front view of a modified finger strength training device, FIG. 6 shows a bottom view of the same finger strength training device, FIG. 7 shows a cross-sectional view of the balance body of the same finger strength training device taken along line A-A in FIG. 6, and FIG. 8 shows a cross-sectional view of the balance body of the same finger strength training device taken along line B-B in FIG.

[0032] As shown in FIG. 5, the finger training device 110 includes a disc 120 and a balancer 130. While the upper surface of the palm rest 22 of the disc 20 was spherical, the palm rest 122 is cylindrical as a whole with a flat upper surface. The outer diameter of the finger training device 110 is not circular as a whole, but is semicircular at the finger rest 121a and rectangular elsewhere. The inclined surface 121 on the upper surface of the disc 120 is also approximately spherical in the semicircular portion, but cylindrical in the rectangular portion. As shown by the dashed line in FIG. 5, the disc 120 on the upper surface of the finger training device 110 may be spherical with a circular outer diameter, similar to the disc 20.

[0033] The balancer 130 has a semicircular outer diameter at the portion corresponding to the finger rest 121a and a rectangular outer diameter at the other portion. The semicircular portion has a roughly spherical shape, and the rectangular portion has a cylindrical surface as shown in the cross-sectional view of FIG.

[0034] Because of its cylindrical surface, it is possible to rotate it so as to swing left and right along a straight line passing through the palm rest vertical central axis 22a, the main body vertical central axis 21b, and the finger rest central axis 21a1. However, as shown in the cross-sectional view of Figure 7, the section extending from the main body vertical central axis 21b toward the finger rest central axis 21a1 is linear, and when placed on a floor or other surface, the linear bottom surface comes into contact with the ground surface, preventing tilting.

[0035] By providing the palm rest 122, it is possible to prevent the wrist from bending at an unnatural angle. However, when the balancer 30 is provided, the palm rest 122 side of the board 120 is shaped so that it is not as inclined as the finger rest 121a side, in order to prevent the wrist from bending at an unnatural angle.

[0036] Specifically, the balancer 130 has a section that is linear in cross section in the direction from the palm rest 122 to the finger rest 121a of the board 120. The direction from the palm rest 122 to the finger rest 121a does not need to be a straight line beyond the finger rest central axis 21a1, and may be just before the finger rest 122, closer to the finger rest central axis 21a1. During training, weight may be applied to the palm rest 122, so in order to prevent the wrist from bending at an unnatural angle at that time, the line needs to be linear up to around the palm rest vertical central axis 22a.

[0037] Compared to the spherical balancing body 30 shown in Figures 1 to 4, the balancing body 130 shown in Figures 5 to 8 has an additional part to prevent the wrist from bending at an unnatural angle, and this part serves as a support part. This support part acts as a support to prevent the disc body 120 of the balancing body 130 from tilting.

[0038] This support portion is located on a line extending from the finger rest 121 a to the palm rest 122 on the board 120 .

[0039] In this embodiment, the finger rest central axis 121a1 is also offset from the main body vertical central axis 121b, and the palm rest vertical central axis 122a is also offset from the main body vertical central axis 121b. Because the finger rest central axis 121a1 is offset from the main body vertical central axis 121b, balance is achieved when the finger training device 110 is tilted slightly forward. In contrast, when the finger rest central axis 121a1 and the main body vertical central axis 121b are aligned, balance is achieved when the finger training device 110 is in a nearly horizontal state. In this case, balance training can be performed by tilting the device forward from a horizontal state, and by not tilting it backward, the wrist can be protected.

[0040] FIG. 9 shows a front view of a finger strength training device according to a modified example, and FIG. 10 shows a bottom view of the same finger strength training device.

[0041] The support part may be formed by changing the shape of a part of the balance body 130, or as shown in FIG. 9, the finger training device 210 has a disk body 220 and a balance body 230, and the balance body 230 may be formed as a spherical shape overall, with the support part 232 protruding from the side farther from the palm rest vertical center axis 222a with respect to the main body vertical center axis 221b, up to the same height as the top of the balance body 230. Since the support portion 232 protrudes to the same height as the top of the balancer 230, the balancer 230 will not tilt even if weight is applied to the palm rest 222. In other words, the wrist can be prevented from bending at an unnatural angle.

[0042] FIG. 11 is a cross-sectional view showing a balance body of a finger strength training device according to a modified example. Up until now, the bottom surfaces of the balancers 30, 130, 230 have been described as being convex downward, and as an example of each portion of the surface being convex, forming part of a sphere.

[0043] However, it may be possible to have a downwardly convex shape, with each portion of the surface being convex, and with the diameters being different in parts. That is, the lower surface of the balancer 330 is a spherical surface with a diameter φ1 near the center of the disc 320, and a spherical surface with a diameter φ2 on the outside, with φ1 > φ2. In other words, it is formed so that the curvature is greater near the center than on the outside.

[0044] In FIG. 11, the inner surface has a diameter φ1 and the outer surface has a diameter φ2. In this way, each portion of the surface can be made convex while the curvature is greater on the inner side than on the outer side. By making each portion of the surface convex, when the finger training device 310 is gradually tilted from a nearly horizontal position, it initially begins to tilt with a slight difference in force, allowing balance training to begin. After training begins, as the user gradually becomes accustomed to it, it becomes possible to tilt the balance body 330 while keeping it in contact with the floor, but the force required to tilt gradually increases. In other words, balance training can be performed by applying gradually greater force.

[0045] FIG. 12 shows a front view of a modified finger strength training device, FIG. 13 shows a bottom view of the same finger strength training device, and FIG. 14 shows a front view of the modified finger strength training device in its deformed state. In this embodiment, a finger strength trainer 410 includes a disk body 420 and a balance body 430 .

[0046] 9 and 10, the number of support parts is increased, and a total of eight support parts 432 are provided on the balancer 430. The eight support parts 432 are provided so that the lines connecting the main body vertical central axis 421b with the main body vertical central axis 421b are equidistantly spaced apart relative to the balancer 430. The support parts 432 are detachable from the balancer 430.

[0047] Since the main body vertical center axis 421b protrudes not only toward the palm rest 422 but also below the finger rest 421a, it is possible to prevent the device from tilting freely when placed on the floor. In other words, for beginners who do not want to do balance training, it is the same as if the balance body 430 did not exist, and training can be performed that focuses only on finger strength training. In this way, by attaching a plurality of support portions 432, the disc body 420 can be made non-tiltable. Furthermore, by removing the support part 432 on the side of the finger rest 421a, it is possible to tilt from the palm rest 422 toward the finger rest 421a, but it is possible to prevent the wrist from tilting in a direction that bends more deeply, thereby allowing for variations in the training.

[0048] To achieve the above-described shapes, the finger training devices 10, 110, 210, 310, and 410 can be formed from a variety of materials, including but not limited to wood, resin, and metal. All or part of the device can also be formed from an elastic material. The elastic material can be, for example, an inflatable material that inflates by filling it with air, or a material that is sufficiently hard but also moderately soft so that it can bend during training. It can also have an internal air chamber, so that the air chamber is the main portion that deforms. In other words, it can be elastically deformable. It can be designed to deform significantly to allow for compact folding for easy storage, or it can be designed to deform only slightly to allow for variations in training. Alternatively, some parts can be rigid, while other parts can be inflatable.

[0049] The underside of the balancing bodies 30, 130, 230, 330, and 430 has a downwardly convex shape, but it may also have an overall convex shape with numerous small protrusions. In this case, the curve connecting the apex of one protrusion with the apex of the peripheral protrusions should be arranged so that it is convex downward.

[0050] It goes without saying that the present invention is not limited to the above-described embodiments. The mutually replaceable components and configurations disclosed in the above embodiments may be appropriately changed and applied. Although not disclosed in the above embodiments, members and configurations that are publicly known and can be mutually substituted for the members and configurations disclosed in the above embodiments may be appropriately substituted, and their combinations may be changed and applied. Although not disclosed in the above embodiments, members and configurations may be substituted by those skilled in the art based on publicly known techniques as substitutes for the members and configurations disclosed in the above embodiments, and the combinations may be changed and applied. is disclosed as an embodiment of the present invention. [Explanation of symbols]

[0051] 10... finger strength training device, 11... upper surface, 12... lower surface, 20... plate body, 21... inclined surface, 21a... finger rest, 21a1... finger rest central axis, 21b... main body vertical central axis, 22... palm rest, 22a... palm rest vertical central axis, 23... fixing device, 30... balance body, 110... finger training device, 120... plate body, 121... inclined surface, 121a... finger rest, 122... palm rest, 130... balance body, 210 ...Finger training device, 220...disk body, 221b...main body vertical central axis, 222...palm rest, 222a...palm rest vertical central axis, 230...balancing body, 232...support part, 310...finger training device, 320...disk body, 330...balancing body, 410...finger training device, 420...disk body, 421b...main body vertical central axis, 422...palm rest, 430...balancing body, 432...support part.

Claims

1. The surface is a generally spherical surface with an upwardly convex shape, and has a disc body formed with a finger rest for placing fingers and a palm rest for placing the palm, The finger strength training device is characterized in that the lower surface is convex downward from the edge of the finger rest portion of the disc body, and each portion of the surface is a balanced body with a convex surface.

2. 2. The finger strength training device according to claim 1, wherein the disc body has a substantially semicircular portion serving as the finger rest, and the center of the palm rest does not coincide with the center portion of the semicircular portion.

3. 3. The finger strength training device according to claim 2, wherein the disc body is approximately circular, an approximately semicircular portion serves as the finger rest, and the center of the palm rest does not coincide with the center of the circle.

4. 2. The finger strength training device according to claim 1, wherein the balance body is shaped so that the side of the board where the palm rest is located is less inclined than the side of the board where the finger rest is located.

5. 5. The finger strength training device according to claim 4, wherein the balance body has a portion whose cross section is linear in the direction from the palm rest to the finger rest on the board body.

6. 5. A finger strength training device according to claim 4, wherein the balance body has a support portion that serves as a support to prevent the plate body from tilting.

7. 7. The finger strength training device according to claim 6, wherein the support portion is located on a line extending from the finger rest to the palm rest on the disc body.

8. 7. The finger strength training device according to claim 6, wherein the support portion is detachable from the balance body and a plurality of support portions can be attached.

9. 9. The finger strength training device according to claim 8, wherein the disc body can be made non-tiltable by attaching a plurality of the support parts.

10. 5. A finger strength training device according to claim 1, wherein the balance body has a larger curvature on the side of the central portion of the disc body than on the outside.

11. 7. A finger strength training device according to claim 1, wherein the center of said finger rest is substantially aligned with the top of said balance body.

12. 7. A finger strength training device according to claim 1, 4 or 6, further comprising a fixture for fixing the palm of the hand to the disc body.

13. 7. A finger strength training device according to claim 1, wherein an air chamber is formed inside the device to make it elastically deformable.

14. A finger strength training device as described in any one of claims 1, 4, and 6, characterized in that the underside of the balance body is formed with countless small protrusions, and the curve connecting the apex of one protrusion to the apex of the peripheral protrusions is convex downward.

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