Waist belt

Abstract

To provide a waist belt which is hardly shifted upward by bending and stretching the waist.SOLUTION: A waist belt 1 includes a body 2 and a displacement prevention part 3 that prevents the body 2 from being displaced. The body 2 includes a lumbar support part 20 and a pair of stretchable wrapping parts (left wrapping part 21, right wrapping part 22) extending in the left-right direction from both sides of the lumbar support part 20. The position shift prevention unit 3 includes a pair of thigh belts (left thigh belt 32, right thigh belt 33) whose rear ends 32a, 33a are fixed to the waist support unit 20 and which are wrapped around the left and right thighs, and a pair of thigh belt fasteners (left thigh belt adjuster 30, right thigh belt adjuster 31) for fastening the vicinity of each of the pair of thigh belts wrapped around the left and right thighs near their respective tip ends 32e, 33e. Each of the pair of thigh belt fasteners is attached to one of the pair of wrapping parts.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a waist belt for securing the waist of a wearer. [Background technology]

[0002] Patent document 1 describes a waist belt in which a first auxiliary band portion and a second auxiliary band portion, which are elastic, cross each other near the upper edge of the waist support portion, thereby efficiently compressing the waist of the wearer and improving the fit to the wearer's body surface.

[0003] However, the above-mentioned prior art has the following problems that need to be improved.

[0004] That is, even when a wearer exercises or works while wearing such a waist belt, bending and straightening the waist can cause the waist belt to shift upward, necessitating the need to correct the position of the waist belt. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-138823 Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention was conceived under the circumstances described above, and aims to provide a waist belt that is less likely to slip upward when the wearer bends and straightens the waist while exercising or working, thereby reducing the frequency of having to adjust the wearing position. [Means for solving the problem]

[0007] The waist belt provided by the present invention is a band-shaped body comprising a main body portion that is wrapped around the wearer's torso, including the waist, and a position shift prevention portion that prevents the main body portion from shifting upward, the main body portion being located approximately in the center of the band-shaped body and including a waist support portion that is placed against the waist, and a pair of elastic wrapping portions that extend left and right from both sides of the waist support portion and are wrapped around the wearer's torso to hold the waist support portion against the waist, the rear ends of the position shift prevention portions being fixed to fixing portions provided on the waist support portion and including a pair of thigh belts that are wrapped around the wearer's left and right thighs, and a pair of thigh belt fasteners for fastening the vicinity of each of the pair of thigh belts wrapped around the left and right thighs, each of the pair of thigh belt fasteners being attached to one of the pair of wrapping portions.

[0008] Preferably, the fixing portion is provided at the lower part of the waist support portion, and each of the pair of thigh belts is fixed toward the left and right outer sides at the fixing portion of the waist support portion, and is wrapped around each of the left and right thighs from the outer side to the inner side.

[0009] Preferably, each of the pair of thigh belts is fixed so as to face outward on the left and right sides and obliquely downward.

[0010] Preferably, each of the pair of wrapping parts is a first wrapping part and a second wrapping part, and the first wrapping part and the second wrapping part are located near each of the side parts of the waist support part and have a stretchable area that generates the stretchability, and a non-stretchable area that is located farther from the waist support part than the stretchable area, and the outer surface of the non-stretchable area of ​​the first wrapping part and the inner surface of the non-stretchable area of ​​the second wrapping part can be bonded to each other by forming a hook-and-loop fastener, and each of the pair of thigh belt fasteners is attached as in any of (a) to (d) below. (a) both of which are attached to the outer surface of the non-stretchable region of the second wrapping portion; (b) dividing the outer surface of the non-stretchable region and the outer surface of the stretchable region of the second wrapping portion into two parts; (c) dividing the outer surface of the non-stretchable region of the first winding portion and the outer surface of the non-stretchable region of the second winding portion into (d) dividing the outer surface of the stretchable region of the first winding portion and the outer surface of the stretchable region of the second winding portion into

[0011] Preferably, each of the pair of thigh belts has a front surface and a back surface, the front surface having either a front loop surface or a front hook surface, the tip of the front surface having either a hook piece or a loop piece that can form a hook and loop fastener with either the front loop surface or the front hook surface, each of the pair of thigh belt fasteners is inverted by folding each of the pair of thigh belts back near the tip, and in each of the pair of thigh belts, the tip on which the hook piece or loop piece is formed and the front loop surface or front hook surface formed on the front surface form the hook and loop fastener and are adhered to each other.

[0012] Preferably, the back surface is formed with either a back hook surface or a back loop surface that can be attached to the front surface to form a hook-and-loop fastener, and the hook piece or the loop piece is formed by folding back either the back hook surface or the back loop surface at the tip.

[0013] Preferably, each of the pair of thigh belt fasteners has a rotation axis that is axially supported at either of the pair of wrapping portions so as to be rotatable inward and outward as viewed from the wearer, and when the wearer wraps the pair of thigh belts around the left or right thighs, each of the pair of thigh belt fasteners rotates outward around the rotation axis to fasten each of the pair of thigh belts fixed on the same side as each of the pair of thigh belt fasteners, and when the wearer does not wrap the pair of thigh belts around the left or right thighs, each of the pair of thigh belt fasteners rotates inward around the rotation axis to fasten each of the pair of thigh belts fixed on the opposite side to each of the pair of thigh belt fasteners.

[0014] Preferably, each of the pair of thigh belt fasteners is a tape adjuster buckle having a male part and a female part, one of the male part and the female part is attached to either of the pair of winding parts, and the other is attached to each of the pair of thigh belts so as to adjust the length of each of the pair of thigh belts, and the tape adjuster buckle connects either of the pair of winding parts to each of the pair of thigh belts by fitting the male part into the female part, and adjusts the length of each of the pair of thigh belts with either of the pair of winding parts connected to each of the pair of thigh belts. [Effects of the Invention]

[0015] According to the present invention, a waist belt can be provided that is less likely to slip upward when the wearer bends and straightens the waist while exercising or working, reducing the frequency with which the wearing position needs to be adjusted.

[0016] Other features and advantages of the present invention will become more apparent from the following description of the preferred embodiments of the invention, which proceeds with reference to the accompanying drawings. [Brief explanation of the drawings]

[0017] [Figure 1]1 is a front view showing a waist belt according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a rear view showing the waist belt of FIG. [Figure 3] Fig. 3(A) is a front view showing a lumbar support plate built into the lumbar support portion of the waist belt of Fig. 1. Fig. 3(B) is a left side view of the lumbar support plate of Fig. 3(A). [Figure 4] FIG. 3 is an enlarged view of a portion indicated by IV in FIG. 2. [Figure 5] FIG. 3 is an enlarged view of a portion indicated by V in FIG. 2. [Figure 6] FIG. 2 is a diagram for explaining an example of a method for wearing the waist belt of FIG. 1, and is a partial front perspective view showing a state in which a wearer is putting on the main body portion. [Figure 7] FIG. 7 is a partial rear perspective view similar to FIG. 6, showing a state in which a wearer is putting on the main body portion. [Figure 8] FIG. 8 is a diagram for explaining the work subsequent to the work of fastening the waist belt shown in FIGS. 6 and 7, and is a partial rear perspective view showing the state in which the wearer is wrapping the left and right thigh belts around the left and right thighs. [Figure 9] FIG. 9 is a partial front perspective view similar to FIG. 8, showing the wearer wrapping the left and right thigh belts around the left and right thighs. [Figure 10] FIG. 10 is a diagram for explaining the work subsequent to the work of fastening the waist belt shown in FIGS. 8 and 9, and is a partial left side perspective view showing the state in which the wearer is working to thread the left and right thigh belts through the left and right thigh belt adjusters. [Figure 11] FIG. 11 is a partial front perspective view similar to FIG. 10, showing the wearer threading the left and right thigh belts through the left and right thigh belt adjusters. [Figure 12] FIG. 12 is a diagram for explaining the operation subsequent to the operation of wearing the waist belt shown in FIGS. 10 and 11, and is a partial left side perspective view showing the operation of the wearer fastening the left thigh belt. [Figure 13] FIG. 13 is a partial right side perspective view similar to FIG. 12, showing the wearer fastening the right thigh belt. [Figure 14]FIG. 13 is a partial rear perspective view similar to FIG. 12, showing the wearer fastening the left and right thigh belts. [Figure 15] FIG. 13 is a partial front perspective view similar to FIG. 12, showing the wearer fastening the left and right thigh belts. [Figure 16] FIG. 10 is a diagram for explaining another example of a method for wearing the waist belt of FIG. 1, and is a partial front perspective view showing the work of the wearer wearing the waist belt without wrapping the left and right thigh belts around the left and right thighs. [Figure 17] FIG. 10 is a partial front perspective view showing a state in which a waist belt according to a second embodiment of the present invention is worn by a wearer. [Figure 18] FIG. 10 is a partial left side perspective view showing a state in which a waist belt according to a third embodiment of the present invention is worn by a wearer. [Figure 19] FIG. 10 is a partial left side perspective view showing a state in which a waist belt according to a fourth embodiment of the present invention is worn by a wearer. DETAILED DESCRIPTION OF THE INVENTION

[0018] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, directions such as up, down, left, and right directions will be in accordance with the drawings.

[0019] First Embodiment [Waist belt] The configuration of a waist belt 1 according to a first embodiment of the present invention will be described with reference to Figs. 1 to 5. The waist belt 1 is for securing the waist of a wearer. Fig. 1 shows the inner surface of the waist belt 1. Fig. 2 shows the outer surface of the waist belt 1. As shown in Figs. 1 and 2, the waist belt 1 comprises a main body 2 and a displacement prevention part 3.

[0020] 1 and 2, the main body 2 is designed to be wrapped around the wearer's torso, and is a band-shaped body including a waist support part 20 located approximately in the center, a pair of wrapping parts (left wrapping part 21 and right wrapping part 22) located on both sides of the waist support part 20, and a hem part 24. As shown in FIG. 2, the main body 2 is provided on its outer surface with an auxiliary belt 25, a pair of adjustment belts (left adjustment belt 21e and right adjustment belt 22e), and a pair of adjustment adjusters (left adjustment adjuster 26 and right adjustment adjuster 27).

[0021] As shown in Figures 1 and 2, the lumbar support portion 20 is the portion that rests against the wearer's waist and has a substantially isosceles trapezoidal planar shape. As shown in Figure 2, the lumbar support portion 20 has a mesh portion 20a on its outer surface. Russell mesh, for example, is used as a material for the mesh portion 20a. By using a mesh material such as Russell mesh, the breathability of the lumbar support portion 20 can be improved. Also, as shown in Figure 1, the lumbar support portion 20 has a knitted fabric 20b on its inner surface. Warp knitted fabric, for example, is used as a material for the knitted fabric 20b. A storage portion is formed by overlapping the mesh portion 20a and the knitted fabric 20b. The lumbar support plate 4 is stored in this storage portion. An opening (not shown) can be provided in the storage portion to make the lumbar support plate 4 replaceable.

[0022] The lumbar support plate 4 shown in FIGS. 3(A) and 3(B) is housed in the lumbar support portion 20 as described above and is intended to rest against and support the wearer's lumbar region. It is formed, for example, from a plastic plate. As shown in FIGS. 3(A) and 3(B), the lumbar support plate 4 has a substantially isosceles trapezoidal shape that matches the planar shape of the lumbar support portion 20. This substantially isosceles trapezoid has a recess 41 in the center of the upper base 40 and a recess 43 in the center of the lower base 42, and the four corners are rounded. The recesses 41 and 43 prevent the lumbar support plate 4 from hitting the wearer when walking or working, reducing pain. The rounded corners also prevent damage to the lumbar support portion 20.

[0023] As shown in FIGS. 1 and 2 , the left wrapping portion 21 and the right wrapping portion 22 extend from opposite non-parallel sides of the substantially isosceles trapezoid of the waist support portion 20 while gradually narrowing to the left and right, and have arc-shaped portions 21a, 22a at their tips. The left wrapping portion 21 and the right wrapping portion 22 are stretchable and are used by the wearer to wrap the main body portion 2 around their torso. The arc-shaped portion 21a of the left wrapping portion 21 has a fastening means for fastening the left wrapping portion 21 and the right wrapping portion 22 together. Specifically, a hook-and-loop fastener, for example, can be used as the fastening means. More specifically, a wrapping hook 23 is provided on the inner surface of the arc-shaped portion 22a of the right wrapping portion 22 to form a hook-and-loop fastener with the outer surface of the arc-shaped portion 21a of the left wrapping portion 21. This wrapping hook 23 is made of plastic.

[0024] 1, the left wrapping portion 21 and the right wrapping portion 22 are provided with stretchable members 21b, 22b as base layers. For example, a power net fabric can be used as the stretchable members 21b, 22b. The material for the stretchable members 21b, 22b can be one that stretches vertically and horizontally, but it is more preferable to use a material that has high stretchability in the horizontal direction and low stretchability in the vertical direction.

[0025] As shown in FIG. 2, the left wrapping portion 21 and the right wrapping portion 22 include stretchable regions 21c, 22c that are located on both sides of the waist support portion 20, and non-stretchable regions 21d, 22d that are located farther from the waist support portion 20 than the stretchable regions 21c, 22c. The stretchable regions 21c, 22c provide stretchability to the left wrapping portion 21 and the right wrapping portion 22. The stretchable regions 21c, 22c are preferably located adjacent to both sides of the waist support portion 20. The non-stretchable regions 21d, 22d are preferably located adjacent to the stretchable regions 21c, 22c. The non-stretchable regions 21d, 22d have no or only slight stretchability compared to the stretchable regions 21c, 22c.

[0026] As shown in FIGS. 1 and 2, in the left wrapping portion 21 and the right wrapping portion 22, a non-stretchable member is sewn onto the stretchable members 21b, 22b in the portions near the ends of the outer surfaces of the main body 2. The areas where the non-stretchable member is sewn form non-stretchable regions 21d, 22d. In the left wrapping portion 21 and the right wrapping portion 22, the portions adjacent to the waist support portion 20 do not have the non-stretchable member attached, and are made up of only the stretchable members 21b, 22b. As a result, the portions adjacent to the waist support portion 20 form stretchable regions 21c, 22c. Loops are provided on the outer surfaces of the non-stretchable regions 21d, 22d to form a hook-and-loop fastener over the entire surface. The outer surface of the non-stretchable region 21d of the left wrapping portion 21 forms a hook-and-loop fastener with the wrapping hook 23 on the inner surface of the right wrapping portion 22.

[0027] 1 and 2, in the main body 2, a connecting portion 20c is provided at the boundary between the waist support portion 20 and the left wrapping portion 21. In addition, a connecting portion 20d is provided at the boundary between the waist support portion 20 and the right wrapping portion 22. The waist support portion 20 and the left wrapping portion 21 are connected at the connecting portion 20c by sandwiching and sewing grosgrain tapes 20e and 20f from the inner and outer surfaces, respectively. Similarly, the waist support portion 20 and the right wrapping portion 22 are connected at the connecting portion 20d by sandwiching and sewing grosgrain tapes 20g and 20h from the inner and outer surfaces, respectively.

[0028] As shown in Figures 1 and 2, a hem 24 is provided around the periphery of the main body 2 to prevent fraying and for decoration. The hem 24 is stretchable, and its stretchability is set to be greater than that of the stretchable regions 21c, 22c (i.e., the stretchable members 21b, 22b). A stretchable binder tape is used to form the hem 24. The binder tape is folded in half lengthwise and sewn to sandwich the peripheries of the waist support portion 20, the left wrapping portion 21, and the right wrapping portion 22.

[0029] As shown in FIG. 2 , the auxiliary belt 25 is disposed on the lumbar support portion 20 to improve the fit of the lumbar support portion 20 to the waist of the wearer. The auxiliary belt 25 is a band-shaped body that is stretchable in the longitudinal direction of the main body portion 2. For example, woven rubber is used as the material for the auxiliary belt 25. The auxiliary belt 25 is stretchable, and its stretchability is set lower than that of the stretchable regions 21c, 22c of the left and right wrapping portions 21, 22.

[0030] 2, one end 25a of the auxiliary belt 25 is sewn to the connecting portion 20c between the waist support portion 20 and the left wrapping portion 21 near the upper end of the side edge of the waist support portion 20, using the grosgrain tape 20f as a presser foot. The auxiliary belt 25 extends diagonally downward from there toward the right wrapping portion 22, forms a bent portion 25b at the right wrapping portion 22, passes through a belt loop 20j provided at approximately the center of the grosgrain tape 20h, extends over the waist support portion 20 toward the left wrapping portion 21, passes through a belt loop 20i provided at approximately the center of the grosgrain tape 20f, forms a bent portion 25c at the left wrapping portion 21, and extends diagonally upward toward the right wrapping portion 22. At this time, the auxiliary belt 25 crosses over the waist support portion 20. The other end 25d of the auxiliary belt 25 is sewn to the connecting portion 20d between the waist support portion 20 and the right wrapping portion 22 at a location near the upper side of the waist support portion 20 using grosgrain tape 20h as a presser foot.

[0031] The left adjustment adjuster 26 is for connecting the auxiliary belt 25 to a left adjustment belt 21e, which will be described later. The right adjustment adjuster 27 is for connecting the auxiliary belt 25 to a right adjustment belt 22e, which will be described later. The left adjustment adjuster 26 and the right adjustment adjuster 27 are flat rings made of plastic, and are molded by molding using a material such as polyacetal.

[0032] As shown in Fig. 4, the left adjustment adjuster 26 has an auxiliary belt insertion opening 26a for slidably inserting the auxiliary belt 25 and a left adjustment belt insertion opening 26b for slidably inserting the left adjustment belt 21e (described later). As shown in Fig. 2, the right adjustment adjuster 27 has the same shape as the left adjustment adjuster 26, and slidably connects the auxiliary belt 25 and the right adjustment belt 22e.

[0033] The left adjustment belt 21e and the right adjustment belt 22e are stretchable bands that are connected to the auxiliary belt 25 via the left adjustment adjuster 26 and the right adjustment adjuster 27, as shown in Fig. 2, to adjust the degree to which the lumbar support portion 20 fits tightly against the waist by the auxiliary belt 25. The stretchability of the left adjustment belt 21e and the right adjustment belt 22e is set to be significantly smaller than that of the auxiliary belt 25. The left adjustment belt 21e and the right adjustment belt 22e each have belt portions 21f, 22f and hook portions 21g, 22g.

[0034] As shown in Fig. 2, the belt portion 21f of the left adjustment belt 21e has its rear end 21h sandwiched and sewn between the stretchable member 21b and the non-stretchable member that forms the non-stretchable region 21d. As shown in Figs. 2 and 4, the belt portion 21f extends from there toward the waist support portion 20, is inserted into the adjustment belt insertion opening 26b of the left adjustment adjuster 26, is turned over to form a bent portion 21i, and returns toward the non-stretchable region 21d. Similarly, as shown in Fig. 2, the belt portion 22f of the right adjustment belt 22e has its rear end 22h sandwiched and sewn between the stretchable member 22b and the non-stretchable member that forms the non-stretchable region 22d, is connected to the right adjustment adjuster 27, and is turned over to form a bent portion 22i and returns toward the non-stretchable region 22d.

[0035] 2, hook portion 21g of left adjustment belt 21e is sewn to the tip of belt portion 21f, and forms a hook-and-loop fastener that adheres to non-stretchable region 21d. Similarly, hook portion 22g is also sewn to the tip of belt portion 22f of right adjustment belt 22e, and forms a hook-and-loop fastener that adheres to non-stretchable region 22d.

[0036] The position shift prevention unit 3 is designed to prevent the main body unit 2 from shifting upward when the wearer bends and straightens their waist while exercising or working, and as shown in Figure 2, it is equipped with a pair of thigh belt fasteners (left thigh belt adjuster 30 and right thigh belt adjuster 31) and a pair of thigh belts (left thigh belt 32 and right thigh belt 33).

[0037] The left thigh belt adjuster 30 and the right thigh belt adjuster 31 are flat plastic rings, molded using a material such as polyacetal, and are used as fasteners when wrapping the left thigh belt 32 and the right thigh belt 33, which will be described later, around the left and right thighs of the wearer.

[0038] 2 and 5, the left thigh belt adjuster 30 has an attachment hole 30a, a left thigh belt insertion opening 30b, an attachment member 30c, and a pivot shaft 30d. The left thigh belt adjuster 30 is attached to the left wrapping section 21 of the main body 2 below the non-stretchable region 21d and near the boundary with the stretchable region 21c by the attachment member 30c so as to be rotatable approximately in the left-right direction about the pivot shaft 30d. The attachment member 30c is, for example, formed by passing a thread through the attachment hole 30a, winding it spirally around the pivot shaft 30d, and sewing it to the main body 2. The left thigh belt insertion opening 30b is for slidably inserting the left thigh belt 32 from the left side as viewed from the wearer.

[0039] Also, as shown in Figure 5, the left thigh belt adjuster 30 can be rotated to the right as seen from the wearer, allowing the right thigh belt 33 to be slidably inserted into the left thigh belt insertion opening 30b from the right side, opposite the left thigh belt 32.

[0040] 2, like the left thigh belt adjuster 30, the right thigh belt adjuster 31 is attached by attachment member 31c to the right wrapping section 22 of the main body 2, below the non-stretchable region 22d and near the boundary with the stretchable region 22c. At the attachment location, the right thigh belt adjuster 31 is sewn to the main body 2 by, for example, threading the attachment member 31c through the attachment hole 31a and wound spirally around the rotation shaft 31d, and is attached so as to be rotatable in the approximate left-right direction around the rotation shaft 31d.

[0041] By making the right thigh belt adjuster 31 rotatable, not only can the right thigh belt 33 be slidably inserted into the right thigh belt insertion opening 31b from the right side, but the left thigh belt 32 can also be slidably inserted from the left side, opposite the right thigh belt 33.

[0042] As shown in FIG. 2, the left thigh belt 32 and the right thigh belt 33 are sewn at a pair of fastening parts 20k, 20l so that their respective rear ends 32a, 33a are separated in the left and right direction below the waist support part 20. These may be sewn so that they are straight in the left and right direction, or they may be sewn diagonally downward. The pair of fastening parts 20k, 20l may be integrated. Alternatively, the left thigh belt 32 and the right thigh belt 33 may be integrated by connecting the rear ends 32a, 33a.

[0043] The left thigh belt 32 is made of, for example, nylon and has a surface 32b, a back surface 32c, and a loop piece 32d. The surface 32b of the left thigh belt 32 is a hook surface with hooks on the entire surface. In addition, a loop piece 32d is sewn to the front end 32e of the left thigh belt 32 on the surface 32b side. The loop piece 32d can be attached to any part of the surface 32b to form a hook-and-loop fastener.

[0044] As shown in FIG. 5, when fastening the left thigh belt 32, the left thigh belt 32 is inserted into the left thigh belt insertion opening 30b of the left thigh belt adjuster 30, and the folded portion 32f is formed at the left thigh belt insertion opening 30b and then turned over. The left thigh belt 32 wrapped around the wearer's left thigh is fastened by adhering the loop piece 32d to the surface 32b. The position of the folded portion 32f varies depending on the thickness of the left thigh and the way the left thigh belt 32 is wrapped. Note that the surface 32b may be a loop surface having loops on the entire surface. In this case, the loop piece 32d is changed to a hook piece.

[0045] As shown in FIG. 2, the right thigh belt 33 also has a front surface 33b, a back surface 33c, and a loop piece 33d. The loop piece 33d is sewn to the front surface 33b of the tip 33e of the right thigh belt 33. The right thigh belt adjuster 31 is turned over at a folded portion 33f so that the loop piece 33d can be adhered to the front surface 33b, which has hooks all over its surface. Note that the front surface 33b may also have loops all over its surface. In this case, the loop piece 33d is replaced with a hook piece.

[0046] For example, hook-and-loop fastener belts having hook surfaces on the front surfaces 32b, 33b and loop surfaces on the back surfaces 32c, 33c can be used as the left thigh belt 32 and the right thigh belt 33. When the back surfaces 32c, 33c are loop surfaces in this way, the loop pieces 32d, 33d can also be formed by folding back and sewing the tip ends 32e, 33e to the front surfaces 32b, 33b.

[0047] [How to wear the waist belt] A method of wearing the waist belt 1 according to the first embodiment of the present invention will be described with reference to FIGS.

[0048] 6 and 7 , a method for the wearer 5 to attach the main body part 2 to the torso 5a will be described. First, the wearer 5 wraps the main body part 2 around the torso 5a and secures it. As shown in FIG. 6 , the wearer 5 holds the non-stretchable region 21d of the left wrapping part 21 and the non-stretchable region 22d of the right wrapping part 22, stretches the stretchable region 21c of the left wrapping part 21 and the stretchable region 22c of the right wrapping part 22 in the directions indicated by arrows N1 and N2, respectively, and attaches the wrapping hook 23 provided on the inner surface of the non-stretchable region 22d to an appropriate position on the outer surface of the non-stretchable region 21d. The wrapping hook 23 and the loop surface on the outer surface of the non-stretchable region 21d are bonded to each other to form a hook-and-loop fastener, thereby securing the main body part 2 to the torso 5a. As shown in FIG. 7 , when wearing the main body part 2, the wearer 5 positions the waist support part 20 so that it abuts against the waist 5b.

[0049] Next, the wearer 5 adjusts the fit of the waist support portion 20 to the waist region 5b using the left adjustment belt 21e, the right adjustment belt 22e, and the auxiliary belt 25. As shown in FIG. 6, the wearer 5 pulls the vicinity of the tip of the left adjustment belt 21e where the hook portion 21g is provided and the vicinity of the tip of the right adjustment belt 22e where the hook portion 22g is provided in the directions indicated by arrows N1 and N2, respectively, to attach the hook portion 21g to an appropriate position in the non-stretchable region 21d, and also attach the hook portion 22g to an appropriate position in the non-stretchable region 22d. The hook portion 21g and the loop provided on the outer surface of the non-stretchable region 21d form a hook-and-loop fastener and are bonded to each other. The hook portion 22g and the loop surface on the outer surface of the non-stretchable region 22d also form a hook-and-loop fastener and are bonded to each other. If the non-stretchable region 22d covers the non-stretchable region 21d when the wearer 5 puts on the main body 2, the hook portion 21g may be attached to an appropriate position on the non-stretchable region 22d. In this case, the hook portion 21g and the loop surface on the outer surface of the non-stretchable region 22d form a hook-and-loop fastener and are bonded to each other.

[0050] As shown in FIG. 7, the left adjustment belt 21e and the auxiliary belt 25 are slidably connected to the left adjustment adjuster 26, and the right adjustment belt 22e and the auxiliary belt 25 are slidably connected to the right adjustment adjuster 27. As a result, when the wearer 5 puts on the main body 2, as shown in FIG. 6, if the wearer 5 pulls the left adjustment belt 21e and the right adjustment belt 22e in the directions indicated by arrows N1 and N2, respectively, the auxiliary belt 25 will stretch in the left-right direction as a whole as indicated by arrows N3 and N4, as shown in FIG. 7. As a result, the auxiliary belt 25 presses the lumbar support portion 20 from above, improving the fit of the lumbar support portion 20 to the lumbar region 5b. The wearer 5 adjusts the fit of the lumbar support portion 20 to the lumbar region 5b by adjusting the degree of pulling on the left adjustment belt 21e and the right adjustment belt 22e.

[0051] Next, a method for the wearer 5 to wear the displacement prevention unit 3 on the left thigh 5c and right thigh 5d will be described with reference to FIGS. 8 to 14. First, the wearer 5 wraps the left thigh belt 32 around the left thigh 5c. As shown in FIG. 8, the wearer 5 turns the left thigh belt 32, whose rear end 32a is sewn to the fixing portion 20k at the bottom of the waist support portion 20, from the outside of the left thigh 5c as indicated by arrow N5 to the inside as indicated by arrow N6, with the front surface 32b facing outward, and then wraps the left thigh belt 32 around the left thigh 5c so that the tip end 32e is in front of the body as indicated by arrow N7, as shown in FIGS. 8 and 9. Similarly, the wearer 5 wraps the right thigh belt 33 around the right thigh 5d. As shown in FIG. 8, the wearer 5 wraps the right thigh belt 33, whose rear end 33a is sewn to the fixing part 20l at the bottom of the waist support part 20, from the outside of the right thigh 5d as shown by arrow N8 to the inside as shown by arrow N9, with the surface 33b facing outward, and further wraps it so that the tip end 33e is in front of the body as shown by arrow N10, as shown in FIGS. 8 and 9.

[0052] Next, the wearer 5 passes the left thigh belt 32 through the left thigh belt adjuster 30. As shown in FIG. 10, the left thigh belt adjuster 30 is tilted to the left (outside) as viewed from the wearer 5, centered on the pivot shaft 30d, as indicated by the arrow N11. The wearer 5 inserts the tip 32e of the left thigh belt 32 into the left thigh belt insertion opening 30b from the back side of the left thigh belt adjuster 30, forms the folded-back portion 32f at the left thigh belt insertion opening 30b, turns it over, and tightens the left thigh belt 32 around the left thigh 5c by pulling it while sliding it into the left thigh belt insertion opening 30b in the direction indicated by the arrow N12. Similarly, the wearer 5 passes the right thigh belt 33 through the right thigh belt adjuster 31. As shown in FIG. 11, the right thigh belt adjuster 31 is tilted to the right (outside) as viewed from the wearer 5. The wearer 5 inserts the right thigh belt 33 into the right thigh belt insertion opening 31b, forms the folded portion 33f at the right thigh belt insertion opening 31b, turns it over, and pulls it while sliding it into the right thigh belt insertion opening 31b, thereby tightening the right thigh belt 33 around the right thigh 5d.

[0053] Next, as shown in Fig. 12, the wearer 5 attaches the loop piece 32d sewn onto the surface 32b of the tip portion 32e of the left thigh belt 32 to the hook surface provided on the surface 32b of the left thigh belt 32 to fasten the left thigh belt 32. Similarly, as shown in Fig. 13, the wearer 5 attaches the loop piece 33d sewn onto the surface 33b of the tip portion 33e of the right thigh belt 33 to the hook surface provided on the surface 33b of the right thigh belt 33 to fasten the right thigh belt 33.

[0054] As shown in FIGS. 14 and 15, once the waist belt 1 is worn, the displacement prevention unit 3 is fixed to the main body 2 at four points (fixing units 20k, 20l, left thigh belt adjuster 30, and right thigh belt adjuster 31). That is, as shown in FIG. 14, the rear end 32a of the left thigh belt 32 is fixed to fixing unit 20k at the bottom of the waist support unit 20 of the main body 2. Similarly, the rear end 33a of the right thigh belt 33 is fixed to fixing unit 20l at the bottom of the waist support unit 20 of the main body 2. As shown in FIG. 15, the vicinity of the tip 32e of the left thigh belt 32 is fixed to the left thigh belt adjuster 30 located in the non-stretchable region 21d of the main body 2. Similarly, the vicinity of the tip 33e of the right thigh belt 33 is fixed to the right thigh belt adjuster 31 located in the non-stretchable region 22d of the main body 2. The left thigh belt 32 and the right thigh belt 33 are tightly wrapped around the left thigh 5c and the right thigh 5d, respectively.

[0055] 16, the waist belt 1 can also be used without wrapping the left thigh belt 32 and the right thigh belt 33 around the left thigh 5c and right thigh 5d. In that case, the wearer 5 rotates the right thigh belt adjuster 31 to the left (inward) as viewed from the wearer 5, as shown by arrow N13, about the rotation axis 31d. Next, without wrapping the opposite left thigh belt 32 around the left thigh 5c, the wearer 5 inserts the tip end 32e into the right thigh belt insertion opening 31b from the back side of the right thigh belt adjuster 31, forms a folded-back portion 32f at the right thigh belt insertion opening 31b, turns it over, and pulls it while sliding it into the right thigh belt insertion opening 31b in the direction shown by arrow N14. The wearer 5 fastens the left thigh belt 32 by adhering the loop piece 32d sewn to the surface 32b of the tip 32e of the left thigh belt 32 to the hook surface provided on the surface 32b of the left thigh belt 32.

[0056] Similarly, the wearer 5 rotates the left thigh belt adjuster 30 to the right (inward) as viewed from the wearer 5, as indicated by arrow N15, around the rotation axis 30d. Next, the wearer 5 inserts the tip 33e of the right thigh belt 33 from the back side of the left thigh belt adjuster 30 into the left thigh belt insertion opening 30b without wrapping it around the right thigh 5d, forms a folded-back portion 33f at the left thigh belt insertion opening 30b, turns it over, and pulls it while sliding it toward the left thigh belt insertion opening 30b in the direction indicated by arrow N16. The wearer 5 fastens the right thigh belt 33 by adhering the loop piece 33d sewn to the surface 33b of the tip 33e of the right thigh belt 33 to the hook surface provided on the surface 33b of the right thigh belt 33. In this way, the right thigh belt 33 is secured overlapping the left thigh belt 32. Of course, the right thigh belt 33 may be fastened first, in which case the left thigh belt 32 is fastened overlapping the right thigh belt 33.

[0057] According to the displacement prevention unit 3 of this embodiment, the left thigh belt 32 and the right thigh belt 33 wrapped around the left thigh 5c and right thigh 5d of the wearer 5 have rear ends 32a, 33a fixed to fixing parts 20k, 20l provided on the waist support part 20, and the vicinity of the front ends 32e, 33e are fastened to the left thigh belt adjuster 30 and the right thigh belt adjuster 31 attached to the left wrapping part 21 and the right wrapping part 22, so that the waist belt 1 is securely attached to the torso 5a including the waist 5b. As a result, when the wearer 5 exercises or works after wearing the waist belt 1, the main body part 2 is less likely to shift upward due to bending and straightening of the waist, and the frequency of adjusting the wearing position can be reduced.

[0058] Furthermore, the fastening parts 20k, 20l are provided at the bottom of the waist support part 20, and the left thigh belt 32 and the right thigh belt 33 are fastened at the fastening parts 20k, 20l of the waist support part 20 so that they face outward to the left and right. By fastening them so that they face outward to the left and right, the direction in which the left thigh belt 32 and the right thigh belt 33 face matches the wrapping direction. This matching of the directions allows the wearer 5 to wrap the left thigh belt 32 and the right thigh belt 33 naturally around the left thigh 5c and the right thigh 5d from the outer side to the inner side. This makes the waist belt 1 easy to wear. Because the fastening parts 20k, 20l are provided at the bottom of the waist support part 20, the left thigh belt 32 and the right thigh belt 33 can be securely wrapped around the left thigh 5c and the right thigh 5d, respectively, and the main body part 2 of the waist belt 1 is less likely to slip upward.

[0059] Furthermore, the left thigh belt 32 and the right thigh belt 33 are fixed at the fixing parts 20k, 20l of the waist support part 20 so that they face outward to the left and right and also face diagonally downward at the fixing parts 20k, 20l. This makes the direction in which the left thigh belt 32 and the right thigh belt 33 face more closely match the wrapping direction, making the waist belt 1 easier to put on.

[0060] Furthermore, left wrapping portion 21 and right wrapping portion 22 each have elastic regions 21c, 22c located near the sides of waist support portion 20 and non-elastic regions 21d, 22d located farther from waist support portion 20 than elastic regions 21c, 22c, and left thigh belt adjuster 30 and right thigh belt adjuster 31 are attached to non-elastic regions 21d, 22d, respectively. As a result, waist support portion 20 is pressed against waist 5b by wearing main body portion 2 while stretching elastic regions 21c, 22c, and by locating left thigh belt adjuster 30 and right thigh belt adjuster 31 in non-elastic regions 21d, 22d, which are less likely to stretch, the vicinity of tip ends 32e, 33e of left thigh belt 32 and right thigh belt 33 can be firmly fixed so as to prevent movement.

[0061] Furthermore, the pair of fastening parts 20k, 20l for fastening the left thigh belt 32 and the right thigh belt 33 to the lower part of the waist support part 20 can be integrated. Furthermore, the left thigh belt 32 and the right thigh belt 33 can be integrated by connecting the rear end parts 32a and 33a. This allows for labor-saving and cost reduction when manufacturing the waist belt 1.

[0062] Furthermore, left thigh belt 32 and right thigh belt 33 each have a hook surface on surface 32b, 33b, and loop pieces 32d, 33d are formed at tip ends 32e, 33e of surfaces 32b, 33b. Left thigh belt adjuster 30 and right thigh belt adjuster 31 are each inverted by folding back left thigh belt 32 and right thigh belt 33 near tip ends 32e, 33e. The hook surfaces of surfaces 32b, 33b and loop pieces 32d, 33d at tip ends 32e, 33e are bonded together by forming a hook-and-loop fastener. This allows the vicinity of the respective tip portions 32e, 33e of the left thigh belt 32 and the right thigh belt 33 to be firmly connected to the main body 2 when wearing the waist belt 1, making it easy to wear the left thigh belt 32 and the right thigh belt 33 on the left thigh 5c and the right thigh 5d and to adjust the tightness.

[0063] Furthermore, if the left thigh belt 32 and the right thigh belt 33 have, for example, hook surfaces on the front surfaces 32b, 33b and loop surfaces on the back surfaces 32c, 33c, then the loop pieces 32d, 33d can be formed by folding back the tip portions 32e, 33e to the front surfaces 32b, 33b and sewing them on. This allows for labor-saving and cost reduction when manufacturing the waist belt 1.

[0064] Furthermore, left thigh belt adjuster 30 and right thigh belt adjuster 31 are each pivotally supported by pivot shafts 30d, 31d so as to be rotatable inward and outward as viewed from wearer 5, and are attached to main body 2. When wearer 5 uses waist belt 1 by wrapping left thigh belt 32 and right thigh belt 33 around left thigh 5c and right thigh 5d, respectively, left thigh belt adjuster 30 and right thigh belt adjuster 31 are each rotated outward as viewed from wearer 5, and left thigh belt 32 and right thigh belt 33 fixed on the same side are fastened. When the wearer 5 uses the waist belt 1 without wrapping the left thigh belt 32 and the right thigh belt 33 around the left thigh 5c and the right thigh 5d, respectively, the left thigh belt adjuster 30 and the right thigh belt adjuster 31 are rotated inward as viewed from the wearer 5, and the right thigh belt 33 and the left thigh belt 32, which are fixed on the opposite side, are fastened. This allows the waist belt 1 to be worn compactly even when the left thigh belt 32 and the right thigh belt 33 are not wrapped around the left thigh 5c and the right thigh 5d, respectively.

[0065] <Second embodiment> [Waist belt] A waist belt 1A according to a second embodiment of the present invention will be described with reference to Fig. 17. In the waist belt 1A, components having the same or similar functions as those of the waist belt 1 according to the first embodiment are given the same reference numerals as those of the waist belt 1. Detailed description of these components will be omitted.

[0066] As shown in FIG. 17, the waist belt 1A differs from the waist belt 1 according to the first embodiment in that it includes a main body portion 2A and a displacement prevention portion 3A. As shown in FIG. 17, the main body portion 2A includes a left wrapping portion 21A and a right wrapping portion 22A. These have non-stretchable regions 21Ad, 22Ad that are longer than the non-stretchable regions 21d, 22d used in the first embodiment. When wearing the main body portion 2A around the torso 5a of the wearer 5, if the right wrapping portion 22A is wrapped over the left wrapping portion 21A, the non-stretchable region 22Ad of the right wrapping portion 22A will cover most of the non-stretchable region 21Ad of the left wrapping portion 21A. In such a case, it is appropriate to attach the hook portion 21g of the left adjustment belt 21e to an appropriate position in the non-stretchable region 22Ad. When the hook portion 21g is attached to the non-stretchable region 22Ad, the hook portion 21g and the loop surface on the outer surface of the non-stretchable region 22Ad form a hook-and-loop fastener and are bonded to each other.

[0067] 17, the displacement prevention unit 3A has a pair of thigh belt fasteners (left thigh belt adjuster 30A and right thigh belt adjuster 31A). As seen from the wearer 5, the left thigh belt adjuster 30A and the right thigh belt adjuster 31A are both attached to the left and right sides of the outer surface of the non-elastic area 22Ad of the right wrapping part 22A.

[0068] 17, the left thigh belt 32 wrapped around the left thigh 5c is fixed near the tip 32e to the left thigh belt adjuster 30A located in the non-elastic area 22Ad of the main body 2A. Similarly, the right thigh belt 33 wrapped around the right thigh 5d is fixed near the tip 33e to the right thigh belt adjuster 31A located in the non-elastic area 22Ad of the main body 2A. As a result, the displacement prevention unit 3A is fixed to the main body 2A at four points, as in the first embodiment.

[0069] As in the first embodiment, the waist belt 1A can also be used without wrapping the left thigh belt 32 and the right thigh belt 33 around the left thigh 5c and right thigh 5d. The left thigh belt adjuster 30A and the right thigh belt adjuster 31A are rotatably attached to the outer surface of the non-elastic area 22Ad. In this case, for example, the right thigh belt 33 is fastened to the left thigh belt adjuster 30A, and the left thigh belt 32 is fastened to the right thigh belt adjuster 31A.

[0070] According to this embodiment, the left and right winding portions 21A and 22A are elongated, and the left and right thigh belt adjusters 30A and 31A are both attached to the outer surfaces of the non-stretchable region 22Ad of the right winding portion 22A. This allows the main body 2A to be attached to the torso 5a while stretching the stretchable regions 21c and 22c, and by locating the left and right thigh belt adjusters 30A and 31A in the non-stretchable region 22Ad, which is less likely to stretch, the areas near the distal ends 32e and 33e of the left and right thigh belts 32 and 33 can be firmly secured to prevent movement. Furthermore, the elongated left and right winding portions 21A and 22A allow the main body 2A to be firmly secured to the torso 5a.

[0071] <Third embodiment> [Waist belt] A waist belt 1B according to a third embodiment of the present invention will be described with reference to Fig. 18. In the waist belt 1B, components having the same or similar functions as those of the waist belt 1 according to the first embodiment are given the same reference numerals as those of the waist belt 1. Detailed description of these components will be omitted.

[0072] As shown in FIG. 18, the waist belt 1B differs from the waist belt 1 according to the first embodiment in that it includes a main body portion 2B and a displacement prevention portion 3B. As shown in FIG. 18, the main body portion 2B includes a left wrapping portion 21B and a right wrapping portion 22B. These are formed longer than the left wrapping portion 21 and right wrapping portion 22 used in the first embodiment. When the main body portion 2B is wrapped around the torso 5a of the wearer 5, if the right wrapping portion 22B is wrapped over the left wrapping portion 21B, the non-stretchable region 22Bd of the right wrapping portion 22B will cover most of the non-stretchable region 21Bd of the left wrapping portion 21B. In such a case, the hook portion 21g of the left adjustment belt 21e is attached to an appropriate position in the non-stretchable region 22Bd. When the hook portion 21g is attached to the non-stretchable region 22Bd, the hook portion 21g and the loop surface on the outer surface of the non-stretchable region 22Bd are bonded to each other to form a hook-and-loop fastener.

[0073] As shown in FIG. 18, the displacement prevention unit 3B has a pair of thigh belt fasteners (a left thigh belt adjuster 30B and a right thigh belt adjuster 31B). The left thigh belt adjuster 30B and the right thigh belt adjuster 31B are both attached to the left and right outer surfaces of the right wrapping portion 22B. In the waist belt 1B, the non-stretchable region 22Bd of the right wrapping portion 22B is shorter than the non-stretchable region 22Ad of the right wrapping portion 22A in the waist belt 1B of the second embodiment. Therefore, the left thigh belt adjuster 30B is attached below the non-stretchable region 22Bd, while the right thigh belt adjuster 31B is attached below the stretchable region 22Bc. In the waist belt 1B, the stretchable regions 21Bc, 22Bc of the left wrapping portion 21B and the right wrapping portion 22B are made of a material that is highly stretchable in the left-right direction but less stretchable in the up-down direction.

[0074] 18, the left thigh belt 32 wrapped around the left thigh 5c is fixed near its tip 32e to a left thigh belt adjuster 30B located in the non-elastic region 22Bd of the main body 2B. Similarly, the right thigh belt 33 wrapped around the right thigh 5d is fixed near its tip 33e to a right thigh belt adjuster 31B located in the elastic region 22Bc of the main body 2B. As a result, the displacement prevention unit 3B is fixed to the main body 2B at four points, as in the first embodiment.

[0075] As in the first embodiment, the waist belt 1B can also be used without wrapping the left thigh belt 32 and the right thigh belt 33 around the left thigh 5c and right thigh 5d. The left thigh belt adjuster 30B and the right thigh belt adjuster 31B are rotatably attached to the outer surfaces of the non-elastic region 22Bd and the elastic region 22Bc, respectively. In this case, for example, the right thigh belt 33 is fastened to the left thigh belt adjuster 30B, and the left thigh belt 32 is fastened to the left thigh belt adjuster 31B.

[0076] According to this embodiment, the left and right winding portions 21B and 22B are elongated, and the left and right thigh belt adjusters 30B and 31B are attached to the outer surface of the non-stretchable region 22Bd and the stretchable region 22Bc, respectively, of the right winding portion 22B. This allows the main body 2B to be attached to the torso 5a while stretching the stretchable regions 21c and 22c. By locating the left thigh belt adjuster 30B in the non-stretchable region 22Bd, which is less stretchable, and the right thigh belt adjuster 31B in the stretchable region 22Bc, which is less stretchable vertically, the vicinity of the distal ends 32e and 33e of the left and right thigh belts 32 and 33 can be firmly secured to prevent movement. Furthermore, the elongated left and right winding portions 21B and 22B allow the main body 2B to be firmly secured to the torso 5a.

[0077] <Fourth embodiment> [Waist belt] A waist belt 1C according to a fourth embodiment of the present invention will be described with reference to Fig. 19. In the waist belt 1C, components having the same or similar functions as those of the waist belt 1 according to the first embodiment are given the same reference numerals as those of the waist belt 1. Detailed description of these components will be omitted.

[0078] As shown in FIG. 19, the waist belt 1C differs from the waist belt 1 according to the first embodiment in that it has a displacement prevention part 3C. The displacement prevention part 3C has a pair of tape adjuster buckles (a left tape adjuster buckle 30C and a right tape adjuster buckle 31C). The left tape adjuster buckle 30C is for connecting the main body part 2 and the left thigh belt 32, and is used as a thigh belt fastener when wrapping the left thigh belt 32 around the left thigh 5c of the wearer 5. On the other hand, the right tape adjuster buckle 31C is for connecting the main body part 2 and the right thigh belt 33, and is used as a thigh belt fastener when wrapping the right thigh belt 33 around the right thigh 5d of the wearer 5. The right tape adjuster buckle 31C has a similar configuration to the left tape adjuster buckle 30C, and therefore a detailed description thereof will be omitted.

[0079] The configuration of the left tape adjuster buckle 30C will be described below. The left tape adjuster buckle 30C is equipped with a female part 30Ca and a male part 30Cb. When the male part 30Cb is inserted into the female part 30Ca, it is locked, and the female part 30Ca and the male part 30Cb are connected to each other. The components of the left tape adjuster buckle 30C are made of plastic, for example, molded using polyacetal.

[0080] The female part 30Ca has an attachment portion 30Cc and a storage portion 30Cg. The attachment portion 30Cc is a portion for attaching the female part 30Ca to the main body 2 and includes a rotation axis 30Cd, an attachment member 30Ce, and an attachment hole 30Cf. The female part 30Ca is attached to the left-hand winding portion 21 of the main body 2 by the attachment member 30Ce below the non-stretchable region 21d near the boundary with the stretchable region 21c, so as to be rotatable about the rotation axis 30Cd to the right or left (inward or outward) as viewed from the wearer 5. The attachment member 30Ce is, for example, formed by passing a thread through the attachment hole 30Cf, spirally winding it around the rotation axis 30Cd, and sewing it to the non-stretchable region 21d of the main body 2. The storage portion 30Cg is a portion for receiving and locking the insertion portion 30Ck of the male part 30Cb (described later). The attachment part 30Cc is not limited to being made of plastic, but may be made of cloth. In this case, the end is fixed to the non-stretchable region 21d of the left wrapping part 21 by sewing with an attachment member 30Ce, with the end serving as a pivot 30cd.

[0081] The male part 30Cb has an adjuster part 30Ch and an insertion part 30Ck. The adjuster part 30Ch connects the left tape adjuster buckle 30C and the left thigh belt 32 and adjusts the length of the left thigh belt 32, and has a first left thigh belt insertion opening 30Ci and a second left thigh belt insertion opening 30Cj.

[0082] The first left thigh belt insertion opening 30Ci is for slidably inserting the left thigh belt 32 from the back side of the adjuster part 30Ch. The second left thigh belt insertion opening 30Cj is for reinserting the left thigh belt 32 that has emerged from the first left thigh belt insertion opening 30Ci to the front side. The adjuster part 30Ch secures the left thigh belt 32 to some extent by passing it through the first left thigh belt insertion opening 30Ci and the second left thigh belt insertion opening 30Cj.

[0083] The insertion part 30Ck is inserted into the accommodation part 30Cg of the female part 30Ca to couple and lock the female part 30Ca and the male part 30Cb. The lock can be released by pressing a button on the side of the insertion part 30Ck, and the female part 30Ca and the male part 30Cb will separate.

[0084] [How to wear the waist belt] A method for wearing a waist belt 1C according to a fourth embodiment of the present invention will be described with reference to Fig. 19. In the method for wearing a waist belt 1C, detailed descriptions of steps that are the same as or similar to those in the method for wearing a waist belt 1 according to the first embodiment will be omitted.

[0085] First, the wearer 5 separates the female part 30Ca and the male part 30Cb of the left tape adjuster buckle 30C and attaches the left thigh belt 32 to the adjuster part 30Ch of the male part 30Cb. That is, the wearer 5 inserts the tip 32e of the left thigh belt 32 into the first left thigh belt insertion opening 30Ci from the back side of the adjuster part 30Ch, forms a folded part 32f near the tip 32e of the left thigh belt 32 that has emerged on the front side, turns it over, and reinserts it into the second left thigh belt insertion opening 30Cj. The tip 32e that has emerged on the back side of the adjuster part 30Ch is pulled to complete the attachment of the left thigh belt 32 to the male part 30Cb. The right tape adjuster buckle 31C and the right thigh belt 33 are similarly attached.

[0086] Next, the wearer 5 puts the main body part 2 on the torso part 5a in the same manner as described in the first embodiment. Thereafter, the displacement prevention part 3C is put on the left thigh part 5c and the right thigh part 5d. The female part 30Ca from which the male part 30Cb has been separated is tilted to the left (outside) as seen from the wearer 5, centering on the rotation axis 30Cd. The wearer 5 wraps the left thigh belt 32, to which the male part 30Cb has been attached, around the left thigh part 5c while positioning it. Thereafter, the wearer 5 inserts the insertion part 30Ck of the male part 30Cb into the storage part 30Cg of the female part 30Ca and connects the vicinity of the tip part 32e of the left thigh belt 32 to the main body part 2.

[0087] Next, the wearer 5 slides the left thigh belt 32 through the first left thigh belt insertion opening 30Ci and the second left thigh belt insertion opening 30Cj while pulling it in the direction shown by arrow N13 to tighten it around the left thigh 5c. After that, the wearer 5 attaches the loop piece 32d sewn to the surface 32b of the tip end 32e of the left thigh belt 32 to the hook surface provided on the surface 32b of the left thigh belt 32 to secure the left thigh belt 32. In the same manner, the wearer 5 puts the right thigh belt 33 on the right thigh 5d.

[0088] According to this embodiment, the waist belt 1C has a left tape adjuster buckle 30C and a right tape adjuster buckle 31C. The left tape adjuster buckle 30C and the right tape adjuster buckle 31C each have a female part 30Ca, 31Ca and a male part 30Cb, 31Cb. The female parts 30Ca, 31Ca are attached to the non-stretchable regions 21d, 22d of the main body portion 2, and the male parts 30Cb, 31Cb are connected to the left thigh belt 32 and the right thigh belt 33, respectively. The left tape adjuster buckle 30C and the right tape adjuster buckle 31C each connect the main body portion 2 to the left thigh belt 32 and the right thigh belt 33 by fitting the female parts 30Ca, 31Ca into the male parts 30Cb, 31Cb, respectively, and enable adjustment of the lengths of the left thigh belt 32 and the right thigh belt 33 in the connected state. This makes it easy to fasten the left thigh belt 32 and the right thigh belt 33 and adjust the tightness when wearing the waist belt 1C.

[0089] The present invention is not limited to the above-described embodiment, and the specific configuration of the waist belt and the method for wearing the waist belt according to the present invention can be freely modified in various ways.

[0090] In the first embodiment, the left thigh belt adjuster 30 is attached to the non-elastic region 21d of the left winding portion 21 of the main body 2. The right thigh belt adjuster 31 is attached to the non-elastic region 22d of the right winding portion 22 of the main body 2. However, the attachment locations of the left thigh belt adjuster 30 and the right thigh belt adjuster 31 are not limited to the non-elastic regions 21d and 22d. The left thigh belt adjuster 30 and the right thigh belt adjuster 31 may also be attached below the elastic regions 21c and 22c near the border with the non-elastic regions 21d and 22d. In this case, a material with high elasticity in the left-right direction but low elasticity in the up-down direction is used for the elastic members 21b and 22b. This configuration allows the areas near the tips 32e and 33e of the left thigh belt 32 and the right thigh belt 33 to be firmly fixed so as to prevent movement. [Explanation of symbols]

[0091] 1, 1A, 1B, 1C Waist belt 2,2A,2B Main body 20 Lumbar support 20k fixing part (left thigh belt) 20l Fixation part (right thigh belt) 21, 21A, 21B Left winding part (winding part) 21c, 21Bc Elastic area (left winding part) 21d, 21Ad, 21Bd Non-stretchable area (left winding part) 22, 22A, 22B Right winding part (winding part) 22c, 22Bc Elastic area (right winding part) 22d, 22Ad, 22Bd Non-stretchable area (right winding part) 3,3A,3B,3C Misalignment prevention part 30, 30A, 30B Left thigh belt adjuster (thigh belt fastener) 30d Pivot (left thigh belt adjuster) 30C Left tape adjuster buckle (thigh belt fastener) 30Ca female part (left tape adjuster buckle) 30Cb Male part (left tape adjuster buckle) 30Cd pivot (left tape adjuster buckle) 31, 31A, 31B Right thigh belt adjuster (thigh belt fastener) 31d Rotation axis (right thigh belt adjuster) 31C Right Tape Adjuster Buckle (Thigh Belt Fastener) 32 Left thigh belt (thigh belt) 32a Rear end (left thigh belt) 32d Loop piece (left thigh belt) 32e Tip (left thigh belt) 33 Right thigh belt (thigh belt) 33a Rear end (right thigh belt) 33d Loop piece (right thigh belt) 33e Tip (right thigh belt) 5. Wearer 5a Torso 5b Lower back 5c Left thigh (thigh) 5d Right thigh (thigh)

Claims

1. A waist belt for fixing the waist of a wearer, a main body portion that is a belt-like body and is wrapped around the wearer's torso, including the waist; a positional deviation prevention part that prevents the main body part from being displaced upward, The main body includes a waist support portion provided at approximately the center of the band-shaped body and adapted to be placed against the waist, and a pair of stretchable wrapping portions extending in the left-right direction from both sides of the waist support portion, which are adapted to be wrapped around the torso of the wearer to hold the waist support portion against the waist, the displacement prevention unit includes a pair of thigh belts whose rear ends are fixed to fixing parts provided on the waist support unit and which are wound around the left and right thighs of the wearer, and a pair of thigh belt fasteners for fastening the vicinity of the tip ends of the pair of thigh belts wound around the left and right thighs, A waist belt, wherein each of the pair of thigh belt fasteners is attached to one of the pair of wrapping portions.

2. 2. The waist belt according to claim 1, The fixing portion is provided on a lower portion of the waist support portion, Each of the pair of thigh belts is fixed toward the left and right outer sides at the fixing portion of the waist support portion, and is wrapped around the left and right thighs from the outer side along the inner side.

3. 3. The waist belt according to claim 2, The pair of thigh belts are fixed so as to face outward on the left and right sides and obliquely downward.

4. 2. The waist belt according to claim 1, each of the pair of winding portions is a first winding portion and a second winding portion; The first wrapping portion and the second wrapping portion are disposed near the both side portions of the waist support portion, and each have a stretchable region that causes the stretchability, and a non-stretchable region that is disposed farther from the waist support portion than the stretchable region, an outer surface of the non-stretchable region of the first winding portion and an inner surface of the non-stretchable region of the second winding portion can be bonded to each other by forming a hook-and-loop fastener; A waist belt, wherein each of the pair of thigh belt fasteners is attached as in any one of (a) to (d) below. (a) both of which are on the outer surface of the non-elastic region of the second wrapping portion; (b) dividing the outer surface of the non-elastic region and the outer surface of the elastic region of the second wrapping portion into two; (c) dividing the outer surface of the non-stretchable region of the first winding portion and the outer surface of the non-stretchable region of the second winding portion into (d) dividing the outer surface of the stretchable region of the first winding portion and the outer surface of the stretchable region of the second winding portion into

5. 2. The waist belt according to claim 1, Each of the pair of thigh belts has a front surface and a back surface, The surface is formed with either a front loop surface or a front hook surface, On the surface, at the tip portion, either a hook piece or a loop piece capable of forming a surface fastener with either the front loop surface or the front hook surface is formed, Each of the pair of thigh belt fasteners is inverted by folding back each of the pair of thigh belts near the tip end, In each of the pair of thigh belts, the tip portion on which the hook piece or the loop piece is formed and the front loop surface or the front hook surface formed on the surface form the hook-and-loop fastener and are adhered to each other.

6. 6. The waist belt according to claim 5, The back surface is formed with either a back hook surface or a back loop surface that can be bonded to the front surface to form a hook-and-loop fastener, The hook piece or the loop piece is formed by folding back either the back hook surface or the back loop surface at the tip portion.

7. 2. The waist belt according to claim 1, Each of the pair of thigh belt fasteners has a rotation shaft that is supported at one of the pair of wrapping portions so as to be rotatable inward and outward directions as viewed from the wearer, When the wearer wraps the pair of thigh belts around the left and right thighs, each of the pair of thigh belt fasteners is rotated in the outward direction around the rotation axis and fastens each of the pair of thigh belts fixed on the same side as each of the pair of thigh belt fasteners, When the wearer does not wrap the pair of thigh belts around the left and right thighs, each of the pair of thigh belt fasteners rotates inward around the rotation axis, fastening each of the pair of thigh belts fixed on the opposite side of the pair of thigh belt fasteners.

8. 2. The waist belt according to claim 1, Each of the pair of thigh belt fasteners is a tape adjuster buckle having a male part and a female part, one of the male part and the female part is attached to one of the pair of wrapping parts, and the other is attached to each of the pair of thigh belts in such a manner that the length of each of the pair of thigh belts can be adjusted; The tape adjuster buckle connects either of the pair of winding portions to each of the pair of thigh belts by fitting the male part into the female part, and adjusts the length of each of the pair of thigh belts while either of the pair of winding portions is connected to each of the pair of thigh belts.

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