assistive devices

Abstract

The purpose of this assistive device for gripping training equipment is to prevent the gripping assist part from coming into contact with the side of the wrist. [Solution] An auxiliary device for gripping training equipment is provided, comprising a wristband portion and a gripping auxiliary portion, wherein the wristband portion can be worn on the wrist such that its inner surface is in contact with the wrist, the gripping auxiliary portion has a base portion and a wrap portion, the base portion overlaps the outer surface of the wristband portion, the wrap portion overlaps the palm when worn and can wrap around the equipment, and the edge of the wristband portion is provided to protrude beyond the base portion toward the wrap portion at a position corresponding to the side of the wrist.

Description

【Technical Field】 【0001】 The present invention relates to an auxiliary tool used for gripping a training device. 【Background Art】 【0002】 Patent Document 1 (see, for example, FIGS. 2A to 2G) describes a glove (auxiliary tool) used for gripping a training device. 【Prior Art Documents】 【Patent Documents】 【0003】 【Patent Document 1】 Japanese Unexamined Patent Application Publication No. 2024 - 43046 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0004】 When using the auxiliary tool, the user wears the wrist band portion around the wrist and wraps the gripping auxiliary portion around the device, and then grips the gripping auxiliary portion. When the gripping auxiliary portion hits the side of the wrist due to the load during training, there is a problem that a burden is imposed on the side of the wrist. 【0005】 The first invention aims to suppress the gripping auxiliary portion from hitting the side of the wrist in an auxiliary tool used for gripping a training device. 【0006】 In addition, in the auxiliary tool, a ring through which a fastening belt is inserted may be provided at the end of the gripping auxiliary portion. There is a problem that the convenience of the user is reduced due to a state where a part of the gripping auxiliary portion bites into this ring. 【0007】 The second invention aims to suppress a decrease in the convenience of the user. 【Means for Solving the Problems】 【0008】 According to the first invention, an auxiliary device for gripping training equipment is provided, comprising a wristband portion and a gripping auxiliary portion, wherein the wristband portion can be worn on the wrist such that its inner surface is in contact with the wrist, the gripping auxiliary portion has a base portion and a wrap portion, the base portion overlaps the outer surface of the wristband portion, the wrap portion overlaps the palm when worn and can wrap around the equipment, and the edge of the wristband portion is provided to protrude beyond the base portion toward the wrap portion at a position corresponding to the side of the wrist. 【0009】 According to the first invention, it is possible to prevent the gripping assist part from coming into contact with the side of the wrist during training. 【0010】 According to the second invention, an auxiliary device for gripping equipment during training is provided, comprising a wristband portion, a gripping auxiliary portion, a fastening belt, and a ring, wherein the wristband portion can be worn on the wrist such that its inner surface contacts the wrist, the gripping auxiliary portion has a base portion and a wrap portion, the base portion overlaps the outer surface of the wristband portion, the wrap portion overlaps the palm when worn and can be wrapped around the equipment, the ring is provided at the first end of the base portion, the fastening belt extends to the side of the second end opposite to the first end and can be folded back by the ring, and the first end is located inside the ring in a plan view. 【0011】 According to the second invention, a decrease in user convenience can be suppressed. [Brief explanation of the drawing] 【0012】 [Figure 1] This is a plan view (outside: outer surface) of the auxiliary device 1 of the embodiment. [Figure 2] This is a plan view of the auxiliary device 1 of the embodiment (inside: the inner surface that contacts the wrist). [Figure 3] Figure 3A is a photograph of an actual example of the auxiliary device 1 of the embodiment (outside view: corresponding to Figure 1). Figure 3B is a magnified photograph of the area around ring 4 in Figure 3A. [Figure 4]This is a photograph of an actual example of the auxiliary device 1 of the embodiment (inside view: corresponding to Figure 2). [Figure 5] This is a photograph of the actual product showing the usage state of the auxiliary device 1 of the embodiment. [Figure 6] This corresponds to the area indicated by the dashed line frame B in Figure 5, and is a photograph taken near the wrist 11 after slightly rotating it in the circumferential direction (X-axis). [Modes for carrying out the invention] 【0013】 Embodiments of the present invention will be described below with reference to the drawings. The various features shown in the embodiments below can be combined with each other. Furthermore, each feature constitutes an independent invention. 【0014】 Figures 1 and 2 are plan views of the assistive device 1, showing the outer and inner sides, respectively. Figures 3 to 6 show photographs of actual examples of the assistive device 1. Figures 5 and 6 show the assistive device 1 attached to the user's wrist 11 (see Figure 6). 【0015】 Each figure shows the Z-axis, which defines the axial direction, and the X-axis, which defines the circumferential direction. The axial direction (Z-axis) corresponds to the direction in which the user's arm (forearm) extends. The circumferential direction (X-axis) is the direction around the user's wrist. As shown in Figures 5 and 6, the wrist-side component of the assistive device 1 (wristband portion 3, etc.) becomes cylindrical when wrapped around the wrist. In this case, the circumferential direction of this cylindrical shape is the X-axis, and the axial direction is the Z-axis. It should be noted that, for example, as can be seen by comparing Figure 1 and Figure 5, the circumferential direction (X-axis) corresponds to the direction around the wrist when worn, but in the unfolded view of the assistive device 1 (Figure 1, etc.), for convenience, the circumferential direction (X-axis) is shown as a planar coordinate axis perpendicular to the axial direction (Z-axis). 【0016】 Figures 1 and 2 show the "width W". Width W is a parameter that represents the dimensions of each part of the auxiliary device 1 in the circumferential direction (X-axis). Therefore, although width W is shown near the constricted portion 2b in Figures 1 and 2 for convenience, width W can be used to describe any part of the auxiliary device 1, not just this part. 【0017】 1. Overall Structure Refer to FIG. 1. The assistive tool 1 includes a gripping assist part 2, a wrist band part 3, a ring 4, and a fastening belt 5. The assistive tool 1 is used for the purpose of assisting gripping when the user grips a training tool. As shown in the plan view of FIG. 1, in the non - attached state where the assistive tool 1 is deployed, the gripping assist part 2 and the wrist band part 3 each constitute a sheet - like planar body, and the entire assistive tool 1 has a structure that can be flexibly bent. 【0018】 The gripping assist part 2, as an example, has a base part 2a, a constriction part 2b, and a wrap part 2c. The gripping assist part 2, as an example, in the axial direction (Z - axis), the central part (constriction part 2b) is smoothly constricted, and both ends in the axial direction (Z - axis) (base part 2a and wrap part 2c) have a bulged shape. 【0019】 The base part 2a, as an example, extends in the circumferential direction (X - axis) of the wrist 11. Specifically, the base part 2a, as an example, has two shoulders 2a1, two ends 2a2, and a bottom 2a3. 【0020】 One end of the shoulder 2a1 is connected to the constriction part 2b, and the other end of the shoulder 2a1 is connected to the end 2a2. In the embodiment, as an example, a straight - line - shaped shoulder 2a1 smoothly connects the constriction part 2b and each end 2a2. The shoulder 2a1 extends obliquely at an angle θ with respect to the axial direction (Z - axis). In the embodiment, as an example, 0° < θ < 90° may be used. Specifically, for example, θ = 30 - 80 [°] may be used, or for example, θ = 45 - 70 [°] may be used. θ may be, for example, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, or 80 [°], and may be within any two ranges of the values listed here. By having such a shoulder 2a1, the base part 2a gradually expands in width W as it moves away from the constriction part 2b and the wrap part 2c in the axial direction (Z - axis). At the position of each end 2a2, the width W of the base part 2a is constant. 【0021】 The respective end portions 2a2 are located on opposite sides in the circumferential direction (X-axis). For the sake of distinction, one of the two end portions 2a2 is also referred to as the "first end portion 2a21", and the other is also referred to as the "second end portion 2a22". 【0022】 The bottom portion 2a3 is the wrist-side end portion of the base portion 2a. In the embodiment, as an example, a recess 2a3r is provided at the center of the bottom portion 2a3. The recess 2a3r is, as an example, a trapezoid with a wide opening side. 【0023】 The constriction portion 2b is provided between the base portion 2a and the wrap portion 2c, and is a portion with a narrow width W. In the embodiment, as an example, when comparing each portion, the base portion 2a has the largest width W, the wrap portion 2c has the second largest width W, and the constriction portion 2b has the smallest width W. 【0024】 The wrap portion 2c is provided so as to extend from the side of the base portion 2a toward the fingertip side in the axial direction (Z-axis). The wrap portion 2c is, as an example, rounded and bulges in the circumferential direction (X-axis). The wrap portion 2c overlaps with the palm of the user when the assistive device 1 is worn. 【0025】 In FIG. 1, the outer surface 3fs of the wrist band portion 3 is shown. The base portion 2a of the gripping assist portion 2 is overlaid on the outer surface 3fs. In FIG. 2, the inner surface 3rs of the wrist band portion 3 is shown. The inner surface 3rs contacts the user's wrist. The stitch portion 3k in FIG. 2 sews and joins the gripping assist portion 2 (base portion 2a) and the wrist band portion 3. The stitch portion 3k in FIG. 2 is, as an example, rectangular, and is, as an example, smaller than the base portion 2a in plan view. Each side of the stitch portion 3k is separated from each side (shoulder portion 2a1, end portion 2a2, bottom portion 2a3) of the base portion 2a by a predetermined distance. The wrist band portion 3 can be bent into a tubular shape when worn (see FIGS. 5 and 6), and can be worn on the user's wrist (e.g., the wrist 11 in FIG. 6). 【0026】 Referring to Figure 2, an example of the plan view shape of the wristband portion 3 will be described. In this embodiment, as an example, the wristband portion 3 is a pentagon based on a shield shape, with each corner rounded. The wristband portion 3 comprises a fingertip-side edge portion 3a, lateral edges 3b at both ends in the circumferential direction (X-axis), and a wrist-side edge portion 3c. As shown in Figure 2, the fingertip-side edge portion 3a has a convex shape toward the fingertip, and the tip of the convexity reaches the constricted portion 2b. The wrist-side edge portion 3c is flat (parallel to the X-axis). The lateral edges 3b extend linearly in the axial direction (Z-axis) and connect to the edge portion 3c at a right angle. 【0027】 In this embodiment, the ring 4 and the fastening belt 5 are an example of a "mounting mechanism" for attaching the auxiliary device 1 to the wrist 11. As shown in Figure 1, the ring 4 is provided at the first end 2a21 of the base portion 2a. A portion of the fastening belt 5 is overlapped with the outer surface of the base portion 2a and fixed to the outer surface of the base portion 2a. The fastening belt 5 extends toward the second end 2a22. Although not shown in Figure 1, the fastening belt 5 has sufficient length in the circumferential direction (X-axis). 【0028】 Please refer to Figures 5 and 6. The fastening belt 5 is inserted through the ring 4 and can be folded back by the ring 4. By adjusting the folding position of the fastening belt 5, the first end 2a21 and the second end 2a22 can be pulled closer to each other, allowing for tightening to any desired strength. As shown in Figure 6, the fastening belt 5 can be tightened with the base 2a of the gripping support part 2 and the wristband part 3 wrapped around the wrist 11. 【0029】 In this embodiment, a hook-and-loop fastener 5a (see Figure 1) is used as an example of the fastening belt 5. A corresponding hook-and-loop fastener (not shown) is provided on the back surface of the end of the fastening belt 5. Fixing and detaching can be achieved by covering the hook-and-loop fastener 5a (hook side or loop side) with the corresponding hook-and-loop fastener (not shown). 【0030】 2. Wearing condition and usage method Figures 5 and 6 illustrate an example of how the assistive device 1 is worn. As shown in Figure 6, the base portion 2a extends in the circumferential direction (X-axis) of the wrist 11 and can wrap around the wrist 11 so as to follow the inner and lateral parts of the wrist 11. 【0031】 Please refer to Figure 5. At the location indicated by the dashed line E in Figure 5, a training device (specifically, the rod-shaped gripping part of the device) is positioned. The rod-shaped gripping part of the device is positioned at the dashed line E so as to extend in a direction that penetrates the plane of Figure 5. The wrap portion 2c of the gripping support part 2 is wrapped around the device (the rod-shaped part of the device), and the user grips the device together with the wrapped wrap portion 2c. In this way, the wrap portion 2c can be wrapped around the training device. 【0032】 Note that Figure 5 is just one example of how it can be used, and there are other ways to use it. In other words, in Figure 5, the fingertip end of the wrap portion 2c is wrapped inward so that it faces the palm side (the base of the fingers 12), but in other ways of use, the fingertip end of the wrap portion 2c may be wrapped outward so that it faces the tip of the fingers 12. 【0033】 3. Detailed Configuration 3.1. Structure of the fingertip-side edge 3a (protrusion lengths L1, L2) Please refer to the dashed frame A in Figures 1 and 2. Each dashed frame A corresponds to the side of the user's wrist (see Figure 5). The edge 3a of the wristband portion 3 is provided to extend beyond the base portion 2a (specifically the shoulder portion 2a1) of the gripping support portion 2 and protrude toward the wrap portion 2c. This prevents the gripping support portion 2 from hitting and digging into the side of the wrist during training. 【0034】 In FIG. 1, as an example, protruding lengths L1 and L2 are shown to define the protruding length of the edge portion 3a. Each of the protruding lengths L1 and L2 is the protruding length of the portion where the edge portion 3a extends beyond the root portion 2a (shoulder portion 2a1). Specifically, the protruding length L1 is the length by which the edge portion 3a protrudes beyond the shoulder portion 2a1 at the site where the constricted portion 2b and the shoulder portion 2a1 are connected. Further, the protruding length L2 is the length by which the edge portion 3a protrudes beyond the shoulder portion 2a1 on the side farther from the constricted portion 2b than the position of the protruding length L1 (or on the side closer to the side edge portion 3b than the position of the protruding length L1). The protruding length L2 is also the "maximum protruding length of the portion where the edge portion 3a extends beyond the shoulder portion 2a1". In the embodiment, as an example, "L1 < L2". Specifically, the protruding length of the edge portion 3a gradually decreases as it approaches the constricted portion 2b. However, it is not limited to this, and "L1 > L2" may be used, or "L1 = L2" (the shoulder portion 2a1 and the edge portion 3a are parallel) may also be used. 【0035】 In the embodiment, as an example, L1 and L2 may be 5 mm or more. Further, L1 and L2 may be 30 mm or less as an example. Specifically, L1 and L2 may be, for example, 5 to 30 [mm], or may be, for example, 10 to 20 [mm]. L1 or L2 may be 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, or 30 [mm], and may be within any two of the values listed here. 【0036】 In the embodiment, as an example, the edge portion 3a is provided so as to protrude beyond the shoulder portion 2a1 toward the side of the wrapping portion 2c over the entire length across both ends of each shoulder portion 2a1. Particularly in the embodiment, the edge portion 3a protrudes beyond the shoulder portion 2a1 along the shoulder portion 2a1 as a whole and continuously. However, this is only an example, and various modifications are possible. For example, in the embodiment, the edge portion 3a extends linearly, but it is not limited to this, and it may extend while forming a concavo-convex shape (e.g., zigzag or wavy). For example, in the embodiment, the edge portion 3a may have slits of any number, width, and depth in the middle of the peripheral edge. In the case of having a concavo-convex shape or slits, etc., the protruding length of each edge portion 3a may be determined based on the outermost end portion. 【0037】 3.2. Structure around ring 4 (protrusion length p) Please refer to Figures 1, 3A, and 3B. In this embodiment, as an example, the first end portion 2a21 of the root portion 2a is located inside the ring 4 (i.e., inside the ring hole) in a plan view. 【0038】 Let's explain the effects. The ring 4 is pressed towards the wrist 11 in accordance with the circumferential tightening force of the auxiliary device 1 using the fastening belt 5. If the ring 4 were to overlap the wristband portion 3 directly without the base portion 2a, then, since the wristband portion 3 is usually made of a relatively soft material, the pressure from the ring 4 would be directly transmitted to the wrist 11, making the user more likely to feel pain. In this regard, if the base portion 2a is provided around the ring 4 (until it overlaps in a plan view), the base portion 2a acts as a buffer, mitigating the transmission of the pressure from the ring 4 to the wrist 11. 【0039】 However, the inventors of this application realized that simply providing a large base portion 2a around the entire perimeter of the ring 4 would not suffice. They found that if the first end portion 2a21 were to extend so much that it overlapped with the entire ring 4, another problem would arise. This other problem is that during training (e.g., when a load is applied to the gripping assist portion 2), the hard base portion 2a would firmly bite into the inside of the ring 4. Such a biting (fitting) condition would hinder smooth attachment and detachment, among other problems. 【0040】 Therefore, after careful consideration by the inventors of the present invention, it was found that if the first end portion 2a21 is located inside the ring 4 in a plan view (more preferably near the center of the ring 4), it is possible to alleviate the pressure on the wrist 11 by the ring 4 while also suppressing the base portion 2a from biting into the ring 4. In this embodiment, this characteristic configuration is adopted, so as shown in the dashed frame C of Figure 6, the first end portion 2a21 terminates in the middle of the ring 4, which prevents the base portion 2a from firmly biting into the ring 4 and has the advantage of suppressing a decrease in user convenience. 【0041】 Further details of this configuration will be provided. In this embodiment, as an example, the first end portion 2a21 is provided parallel to the virtual center line CL of the ring 4 (and also parallel to the Z-axis). The first end portion 2a21 protrudes circumferentially outward from the virtual center line CL. 【0042】 Refer to the "inner diameter D" and "projection length p" around the ring 4 in Figure 1 or Figure 3B. The inner diameter D is the inner diameter of the ring 4. Specifically, the inner diameter D is the inner diameter viewed in the circumferential direction (X-axis) at the center of the ring 4 in the axial direction (Z-axis). The projection length p is the projection length of the first end 2a21 inside the ring 4. Specifically, in a plan view (see Figures 1 and 3B), the projection length p is the length that the first end 2a21 protrudes inside the ring 4 from one end of the inner diameter D of the ring 4 in the circumferential direction (X-axis). 【0043】 If the first end portion 2a21 does not protrude at all into the inside of the ring 4, then p=0 and p / D=0. If the position of the first end portion 2a21 coincides with the center of the inner diameter D (virtual center line CL), then the protrusion length p is exactly half of the inner diameter D, so p / D=0.5. If the first end portion 2a21 reaches the entire inside of the ring 4, then the protrusion length p reaches the inner diameter D, and p / D=1. In the embodiment, as an example, the ratio p / D may be, for example, 0.3 to 0.7, or for example, 0.4 to 0.6. p / D may be 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, or 0.7, and may be within any two ranges of the values ​​listed here. 【0044】 For example, as shown in Figure 3B, in the wristband portion 3 of the embodiment, the lateral edge portion 3b located on the side of the first end portion 2a21 is provided to extend along the circumferential direction (X-axis) to the outside of the ring 4. This makes it possible to prevent the ring 4 from directly touching the user's wrist when worn (see Figure 6). The wristband portion 3 can wrap around the entire wrist, including the sides of the wrist, and protect the entire wrist. 【0045】 4.Material etc. For the gripping support part 2, it is preferable to use a durable material, for example, any rubber or any leather (synthetic leather or genuine leather). For the wristband part 3, it is preferable to use a material softer than the gripping support part 2, for example, a cushioning material. Since it comes into contact with the user's wrist, a cushioning material such as sponge is preferable. There are no limitations on the material of the ring 4, and any metal or non-metal may be used. There are no limitations on the material of the fastening belt 5. 【0046】 5. Variations, etc. The plan view shape of the gripping support part 2 is just an example, and any other shape may be adopted. For example, the constricted part 2b or the recess 2a3r may not be present. The wrap part 2c does not have to be rounded and bulging, and for example, the wrap part 2c may be a rectangle with a constant width W. Also, the plan view shape of the wristband part 3 is just an example, and any other shape (e.g., any polygon, any ellipse, etc.) can be adopted. For example, the edge part 3a may be a convex curve that is convex towards the fingertips overall. Alternatively, the edge part 3a may be concave overall, contrary to the embodiment, and the concave shape may be V-shaped or U-shaped. Alternatively, for example, the edge part 3a may extend in a straight line between the lateral edge parts 3b (in this case, it will be a rectangle rather than a pentagon). There are no limitations on the specific shape of the ring 4. For example, a rectangular ring, a D-shaped ring, or a C-shaped ring with a slit in part of the ring may be adopted. There are no specific limitations on the shape of the fastening belt 5; any fastening structure that allows for attachment, detachment, and adjustment of tightening can be adopted. 【0047】 As described in the overall and detailed configurations, the embodiment has various characteristic configurations. These include a first characteristic configuration (the protruding lengths of the fingertip-side edge 3a (L1, L2)) and a second characteristic configuration (the protruding length around the ring 4 (p)). In the embodiment, both the first and second characteristic configurations are employed as an example, but the embodiment is not limited thereto. As a modification, only one of the first and second characteristic configurations may be adopted, and the other may not be adopted. 【0048】 Various embodiments are illustrated below. The embodiments shown below can be combined with each other. 【0049】 [Note 1] An assistive device used for gripping training equipment, It comprises a wristband and a gripping assist part, The wristband portion can be worn on the wrist such that its inner surface is in contact with the wrist. The gripping assist portion has a base portion and a wrap portion, The base portion is superimposed on the outer surface of the wristband portion, The aforementioned wrap portion overlaps with the palm of the hand when worn and can be wrapped around the device. An auxiliary device provided such that, at a position corresponding to the side of the wrist, the edge of the wristband portion protrudes beyond the base portion toward the side of the wrap portion. 【0050】 [Note 2] The assistive device described in Appendix 1, It further includes a fastening belt and a ring, The ring is provided at the first end of the base portion, The fastening belt extends to the second end opposite to the first end and is foldable by the ring. The first end is an auxiliary device located inside the ring in a plan view. 【0051】 [Note 3] The auxiliary device described in Appendix 2, The lateral edge of the wristband portion located on the side of the first end is provided to extend to the outside of the ring, and is an auxiliary device. 【0052】 [Note 4] The auxiliary device described in Appendix 2 or Appendix 3, The ratio p / D is 0.3 to 0.7. D is the inner diameter of the ring, p is the length of the protrusion of the first end inside the ring in a plan view of the auxiliary device. 【0053】 [Note 5] An auxiliary device described in any one of the appendices 1 to 3, The gripping assist portion has a constricted portion between the base portion and the wrap portion, The base portion has a shoulder portion that connects to the constricted portion, An auxiliary device provided so that the edge extends across both ends of the shoulder portion and protrudes beyond the shoulder portion toward the side of the wrap portion. 【0054】 [Note 6] An auxiliary device described in any one of the appendices 1 to 4, An auxiliary device in which the protruding length of the portion where the edge extends beyond the base is 5 mm to 30 mm. 【0055】 [Note 7] An assistive device used for gripping equipment during training, It comprises a wristband, a gripping assist part, a fastening belt, and a ring. The wristband portion can be worn on the wrist such that its inner surface is in contact with the wrist. The gripping assist portion has a base portion and a wrap portion, The base portion is superimposed on the outer surface of the wristband portion, The aforementioned wrap portion overlaps with the palm of the hand when worn and can be wrapped around the device. The ring is provided at the first end of the base portion, The fastening belt extends to the second end opposite to the first end and is foldable by the ring. The first end is an auxiliary device located inside the ring in a plan view. 【0056】 While embodiments have been described above, these are presented as examples only and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications are permitted. The embodiments and their variations are included within the scope and essence of the invention, as well as within the scope of the invention and its equivalents as described in the claims. [Explanation of Symbols] 【0057】 1: Assistive device 2: Grip auxiliary part 2a: Root part 2a1:Shoulder 2a2: End 2a21: End (first end) 2a22: End (second end) 2a3: bottom 2a3r: Indentation 2b: Waist area 2c: Wrap section 3: Wristband section 3a: Edge (edge ​​on the fingertip side) 3b: Lateral edge 3c: Edge (edge ​​on the wrist side) 3fs :Outer surface 3rs: inner surface 3k: Stitching part 4: Ring 5: Fastening belt 5a: Velcro fastener 11: Wrist 12:Finger D: Inner diameter of the ring L1, L2: Protrusion length (protrusion length of the edge on the fingertip side) p: projection length (projection length of the first end) E: Location of training equipment

Claims

[Claim 1] An assistive device used for gripping training equipment, It comprises a wristband and a gripping assist part, The wristband portion can be worn on the wrist such that its inner surface is in contact with the wrist. The gripping assist portion has a base portion and a wrap portion, The base portion is superimposed on the outer surface of the wristband portion, The aforementioned wrap portion overlaps with the palm of the hand when worn and can be wrapped around the device. An auxiliary device provided such that, at a position corresponding to the side of the wrist, the edge of the wristband portion protrudes beyond the base portion toward the side of the wrap portion. [Claim 2] The auxiliary device according to claim 1, It further includes a fastening belt and a ring, The ring is provided at the first end of the base portion, The fastening belt extends to the second end opposite to the first end and is foldable by the ring. The first end is an auxiliary device located inside the ring in a plan view. [Claim 3] The auxiliary device according to claim 2, The lateral edge of the wristband portion located on the side of the first end is provided to extend to the outside of the ring, and is an auxiliary device. [Claim 4] The auxiliary device according to claim 2, The ratio p / D is between 0.3 and 0.

7. D is the inner diameter of the ring, p is the length of the protrusion of the first end inside the ring in a plan view of the auxiliary device. [Claim 5] An auxiliary device according to any one of claims 1 to 3, The gripping assist portion has a constricted portion between the base portion and the wrap portion, The base portion has a shoulder portion that connects to the constricted portion, An auxiliary device provided so that the edge extends across both ends of the shoulder portion and protrudes beyond the shoulder portion toward the side of the wrap portion. [Claim 6] An auxiliary device according to any one of claims 1 to 3, An auxiliary device in which the protruding length of the portion where the edge extends beyond the base is 5 mm to 30 mm. [Claim 7] An assistive device used for gripping equipment during training, It comprises a wristband, a gripping assist part, a fastening belt, and a ring. The wristband portion can be worn on the wrist such that its inner surface is in contact with the wrist. The gripping assist portion has a base portion and a wrap portion, The base portion is superimposed on the outer surface of the wristband portion, The aforementioned wrap portion overlaps with the palm of the hand when worn and can be wrapped around the device. The ring is provided at the first end of the base portion, The fastening belt extends to the second end opposite to the first end and is foldable by the ring. The first end is an auxiliary device located inside the ring in a plan view.

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