Finger strength training device

Abstract

To provide a finger strength training device which facilitates training of horizontal balance. [Solution] The surface is a roughly spherical surface convex upward and has a plate body 20 formed with a finger rest 21a on which the fingers are placed and a palm rest 22 on which the palm is placed, and the underside is a balance body 30 which is convex downward from the edge of the finger rest 21a on the plate body 20 and each part of the surface is convex. Even if the finger strength training device 10 is tilted, it always touches the floor or the like somewhere, so in addition to finger strength training, training while maintaining balance allows the user to train both finger strength and the trunk at the same time.

Description

[Technical field]

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

[0002] 2. Description of the Related Art A finger strength training device that is capable of changing the load angle on the fingers of a hand is 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 disk also has a balance part that protrudes from the center of the rear surface of the disk. The balance part is disclosed to have a cone shape or a semi-cylindrical shape that is smaller than the outer shape of the medium, and also 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 conventional 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 plate are in contact with the floor. Since this state is unstable, strong finger strength is required to maintain horizontal balance, making training difficult for beginners. In addition, because it can be tilted in any direction 360 degrees, if you tilt it toward the palm rest, your wrist will be bent deeply, which can cause pain. Even in the case of a kamaboko shape, it can easily be tilted toward the palm rest, which can cause your wrist to be bent 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 disk body having a surface that is convex upward and substantially spherical, and is formed with a finger rest for placing fingers and a palm rest for placing a palm, When viewed from above The balance body has a roughly semicircular portion, the lower surface of which is convex downward from the edge of the plate body, and each portion of the surface of the roughly semicircular portion is convex, and the balance body is shaped so that the palm rest side of the plate body is less inclined than the finger rest side.

[0008] In another embodiment of the present invention, ,before The balance body is the disk body. The structure has a support portion that acts as a support to prevent the tilt of the device.

[0009] Furthermore, in another embodiment of the present invention, ,before The support portion is configured to be detachable from the balance body, and a plurality of support portions can be attached thereto. In another embodiment of the present invention, the support portion is configured to prevent the plate from tilting by mounting a plurality of support portions.

[0010] In another embodiment of the present invention, ,before The balance body has a larger curvature on the side of the central portion of the disk body than on the outside. Furthermore, in another embodiment of the present invention, the board has a fixing device for fixing a palm to the board.

[0011] Furthermore, in another embodiment of the present invention, , inside An air chamber is formed in the portion to allow elastic deformation. Also,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 have a downwardly convex shape. Effect 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 part of the plate body, and each part of the surface is convex, so that any position on the underside comes into contact with the floor surface, etc., and even at any inclination, it does not become extremely unstable, and training in horizontal balance can be performed even when finger strength is insufficient. [Brief description 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. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. 4 is a cross-sectional view of a balance body of the finger strength training device. [Diagram 5] FIG. 13 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. 13 is a front view of a finger strength training device according to a modified example. [Figure 10] FIG. [Figure 11] FIG. 11 is a cross-sectional view of a balance body of a finger strength training device according to a modified example. [Figure 12] FIG. 13 is a front view of a finger strength training device according to a modified example. [Figure 13] FIG. [Figure 14] FIG. 13 is a front view of the finger strength training device according to the modified example in a deformed state. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[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 the same finger strength training device in a side view, FIG. 3 shows the same finger strength training device in a plan view, and FIG. 4 shows a cross-sectional view of a balance body of the same finger strength training device. In the figure, the finger strength training device 10 has a circular outer periphery, spherical upper and lower surfaces, and a protruding shape on part of the upper surface. When divided horizontally at the outermost periphery, the upper part is called the disk body 20 and the lower part is called the balance body 30.

[0015] The board 20 has an inclined surface 21 that looks like a part of the curved outer surface of a ball-sized sphere has been cut away, and a part of this inclined surface 21 serves as a 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 at which the fingers rest are part S, part I, part M, part R, and part P. Because the inclined surface 21 is spherical, the positions of part S, part I, part M, part R, and part P will change depending on the shape of the user's hand, the length of the fingers, and whether the user has a right or left hand.

[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 plate body 20. The palm rest 22 is formed to protrude to a height that is a step d higher than the highest zenith portion 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 the hands, such as basketball, volleyball, handball, rugby ball, American football, and baseball. It should be noted that finger strength training device 10 is disk-shaped, and the convex dome surface is sometimes referred to as upper surface 11 and the opposite side as lower surface 12.

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

[0019] In addition, in Fig. 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 disk body 20 having a circular outer periphery, and the palm rest vertical central axis 22a of the palm rest 22 having a substantially spherical surface 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 plate 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 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 Fig. 4. In other words, the underside of the finger strength training device 10 has a convex shape extending downward from the edge of the disk body 20 having a circular outer diameter, and the surface is a spherical surface.

[0022] Since it is a spherical surface, 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 is convex downward, and all parts of the surface are convex. This balancer 30 is formed for carrying out horizontal balance training 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, how to use the device will be explained. When using the present invention, one device is used with only one hand, or two devices are used, one on each hand, at the same time. The entire pads of the fingers are placed in contact with finger rests 21a, which are part of the inclined surface 21 of the board 20, and the palm is placed on the palm rest 22. The palm rest 22 prevents the wrist from bending at an unnatural angle. (a) By putting part of your body weight from above while in a push-up position, or while kneeling, the load is distributed to the fingers rather than just the palm, and by maintaining balance, the strength and sensation of the fingers can be trained.

[0025] (b) In addition, by using the present invention within reach while standing with the upper body upright, 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 the like somewhere. This allows the user to train their finger strength as well as their core by training while maintaining balance.

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

[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 parts and the outer edge of the finger strength training device come into contact with the floor and stop, so training that involves gradually tipping the device over is not possible. In contrast, in the case of a balancing body 30 whose underside is convex downward from the edge of the finger rest 21a portion of the plate body 20 and whose surface is convex in each portion, the load on the incline is reduced at any point on the underside and balance is stable, making it possible to carry out balance training or core training. The main body is the plate 20 with an inclined surface, but the inclined surface 21 may be curved or flat. The plate 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, and by placing the finger along the finger rest 21a and using it as a guide for the finger, extreme and unnatural loads on the finger joints are prevented, and loads can be applied to the entire finger, not just specific parts such as the fingertips.

[0028] In addition, a stand for placing the palm, i.e., palm rest 22, is provided so that the palm is positioned higher than the fingers, and a step d is provided between finger rest 21a and palm rest 22, so that a load can 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 lateral axis of the main body, and therefore the angles between the central axes of the main body, palm rest, and finger rest and the lateral axis of the main body 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 fix the palm, the main unit can be worn on the hand, and training can be done not only by doing finger push-ups on the floor, but also by tilting the body against the wall on the inclined surface. By tilting the angle of the body, the load can be changed, and therefore the training intensity can be changed.

[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 balancing 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 balancing 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 disk body 120 and a balance body 130. The upper surface of the palm rest 22 in the disk body 20 was spherical, but 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 semicircular at the finger rest 121a and rectangular in the rest. The inclined surface 121 on the upper surface of the disk body 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 disk body 120 on the upper surface of the finger training device 110 may be spherical with a circular outer diameter like the disk body 20.

[0033] The balancer 130 has an outer diameter that is semicircular at the portion corresponding to the finger rest 121a and rectangular at the other portions. 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 so as to swing left and right with respect to the 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 from main body vertical central axis 21b toward 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, so the tablet will not tilt.

[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 inclined more than the finger rest 121a side in order to prevent the wrist from bending at an unnatural angle.

[0036] Specifically, the balance body 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 straight line needs to extend up to the palm rest vertical central axis 22a.

[0037] Compared with the spherical balancing body 30 shown in Figures 1 to 4, the balancing body 130 shown in Figures 5 to 8 has an additional portion to prevent the wrist from bending at an unnatural angle, and this portion serves as a support portion. This support portion serves as a support that prevents 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 as well, the finger rest central axis 121a1 is 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 substantially horizontal state. At this time, balance training can be performed when the device is tilted forward from the horizontal state, and the wrist can be protected by not tilting it backward.

[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 balancing body 130, or as shown in FIG. 9, the finger training device 210 has a disk body 220 and a balancing body 230, and the balancing body 230 may be formed as a spherical shape overall, and may be formed as a support part 232 that protrudes from the side farther than the palm rest vertical central axis 222a with respect to the main body vertical central axis 221b, to the same height as the top of the balancing body 230. By having the support portion 232 protrude 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 to now, the bottom surface of the balance body 30, 130, 230 has been described as having a downwardly convex shape, and forming a part of a sphere as an example of each portion of the surface being convex.

[0043] However, it may be convex downwards, with each portion of the surface being convex, and the diameter may be made to vary in parts. That is, the lower surface of the balance body 330 is a spherical surface with a diameter φ1 on the side of the central portion of the disc body 320, and a spherical surface with a diameter φ2 on the outside, with the relationship φ1>φ2. That is, it is formed so that the curvature is larger on the side of the central portion than on the outside.

[0044] In FIG. 11, the inner surface is a spherical surface with a diameter of φ1 and the outer surface with a diameter of φ2. In this way, each part of the surface can be made convex while the curvature is made larger on the inner side than on the outer side. By making each part of the surface convex, when the finger training device 310 is gradually tilted from a nearly horizontal state, it starts to tilt with a slight difference in force at first, and balance training can be started. After the training starts, as the user gradually gets used to it, the balance body 330 can be tilted more while being in contact with the floor surface, but the force required for tilting gradually increases. In other words, balance training can be performed by applying gradually larger forces.

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

[0046] 9 and 10, the number of support parts 432 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 straight lines connecting the main body vertical central axis 421b with the main body vertical central axis 421b are equally spaced apart with respect to the axis of 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 to the palm rest 422 side but also to the lower part of the finger rest 421a, it is possible to prevent the balance body 430 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 there was no balance body 430, and training focusing only on finger strength training can be performed. In this way, by mounting a plurality of support parts 432, the plate 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 towards 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] The finger training devices 10, 110, 210, 310, and 410 can be formed of various materials, not limited to wood, resin, and metal, in order to have the above-mentioned shapes. It is also possible to form all or a part of them with an elastic material. The elastic material may be, for example, an inflatable one that is inflated by putting air inside, or one that has sufficient hardness but also has moderate softness so that it can bend during training. Also, it may be one that has an air chamber inside and the part of this air chamber is mainly deformed. In other words, it is made elastically deformable. It may be made to be able to be folded up small by making it large to make it easy to store, or it may be made to be small to make it possible to make adjustments to training. Also, it may be made so that a part is hard and the other part is inflatable.

[0049] The underside of the balancing body 30, 130, 230, 330, 430 has a downward convex shape, but it may also have a convex shape overall, but may have a countless number of small protrusions. In this case, it is sufficient to arrange the curve connecting the apex of a certain protrusion and the apex of the peripheral protrusion so that it has a downward convex shape.

[0050] It goes without saying that the present invention is not limited to the above-mentioned embodiment. -Appropriately change and apply the mutually replaceable members and configurations disclosed in the above embodiments. · Appropriately replacing members and configurations that are not disclosed in the above embodiments but are publicly known and can be mutually substituted for the members and configurations disclosed in the above embodiments, and changing the combinations thereof for application. - Substitute members and configurations, etc. that are not disclosed in the above embodiments but that a person skilled in the art could imagine as substitutes for the members and configurations, etc. disclosed in the above embodiments based on publicly known techniques, and change and apply the combinations. is disclosed as one 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...balance body, 232...support part, 310...finger training device, 320...disk body, 330...balance body, 410...finger training device, 420...disk body, 421b...main body vertical central axis, 422...palm rest, 430...balance body, 432...support part.

Claims

1. The surface is a generally spherical surface with an upwardly convex shape, and the surface has a plate body having a finger rest on which fingers are placed and a palm rest on which the palm is placed, The disk has a substantially semicircular portion when viewed from above, The lower surface has a convex shape extending downward from the edge of the disk body, and each portion of the surface of the substantially semicircular portion has a convex shape.

13. A finger strength training device, comprising: a balance body having a shape that is less inclined on the palm rest side of the board than on the finger rest side of the board.

2. 2. The finger strength training device according to claim 1, wherein the balance body has a support portion that serves as a support to prevent the plate body from tilting.

3. 3. The finger strength training device according to claim 2, wherein the support portion is detachable from the balance body and a plurality of support portions can be attached to the balance body.

4. 4. The finger strength training device according to claim 3, wherein a plurality of the support parts are attached to the board so that the board cannot be tilted.

5. 2. The 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.

6. 3. A finger strength training device according to claim 1, further comprising a fixture for fixing a palm to the disc body.

7. 3. A finger strength training device according to claim 1, further comprising an air chamber formed therein to enable elastic deformation.

8. A finger strength training device as described in claim 1 or 2, characterized in that the underside of the balance body is formed with countless small protrusions, and the curve connecting the apex of one protrusion with the apex of the peripheral protrusions has a downwardly convex shape.

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