JP2007105308A - Lumbago prevention belt - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lumbago prevention belt giving a user a favorable wearing feeling and allowing even a physically feeble person to easily and surely wear it around the lumbar region. <P>SOLUTION: This lumbago prevention belt 1A is provided with a back pad part 3 in an approximately central part of a first belt part 1, a pair of elastic parts 4 in the both ends of the back pad part, and a pair of piece parts 5 in further edge sides of the elastic parts 4. First reinforcing parts 6 provided in the both ends of the back pad part 3 has second belt parts 2 stretching in the longitudinal direction. This belt is further provided with first locking parts 15 in the front sides of the both piece parts 5, a second locking part 17 in the back face side of one piece part 5 and third locking parts 20 in the back face sides near the tip parts 19 of the second belt parts 2. When this lumbago prevention belt 1A is worn around a wearer, after the first locking part 15 and the second locking part 17 are locked together, the third locking parts 20 are locked to the first locking part 15. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a belt that is attached to a human waist to prevent and relieve back pain.

As one of means for preventing and alleviating back pain, a method of attaching a fixture to the waist is known. By mounting this fixing tool, effects such as correction of lumbar vertebra displacement, reduction of weight burden on the lumbar region, stabilization of the pelvis by tightening the pelvis, and protection of the waistline are expected. Wide fabric is also used as a fixture, but the work of winding around the waist is cumbersome and it is difficult to move because of its lack of elasticity. Therefore, a low back pain prevention belt is known as a fixture for easily wearing around the waist to prevent and alleviate low back pain (see, for example, Patent Document 1). The body part of this belt for preventing low back pain has a configuration in which stretchable fabric is formed in a wide and substantially band shape and locking members are provided at both ends in the longitudinal direction. The belt is wound around the waist of the wearer. The stop members are locked and attached. Further, a low back pain prevention belt having a configuration as described in Patent Document 1 is used as a first belt portion, and a part of the front side (surface side when worn by the wearer) of the first belt portion is associated with the first belt portion. A back pain prevention belt further provided with a second belt portion provided with a stop member is also known (see, for example, Patent Document 2). In this back pain prevention belt, after the first belt portion is attached to the wearer, the second belt portion is pulled to lock the locking member to the main body portion.
JP 2005-160584 A JP 2002-345866 A

  However, in order to prevent and relieve back pain by fixing the lower back, the lower back must be firmly fixed, so that the entire back side (ie, back side) of the lower back is strongly pressed with almost equal force. Must be installed. The low back pain prevention belt described in Patent Document 1 is made of a stretchable fabric. In order to fix the waist, the belt is locked in a state where it is strongly pulled with equal force in both longitudinal directions of the belt. The member must be locked and the waist must be tightened. Therefore, there arises a problem that it is difficult for a person with poor arm strength (for example, an elderly person or a sick person) to wear the belt for preventing low back pain described in Patent Document 1 on his / her waist in a form that has a sufficient effect. Moreover, since the part which contact | abuts to the back side of a waist | hip | lumbar part also has elasticity, the problem that the back side of a waist | hip | lumbar part cannot be pressed strongly arises.

  On the other hand, according to the belt for preventing low back pain described in Patent Document 2, depending on the length and arrangement position of the second belt portion, the balance of the force applied to the main body portion by pulling it becomes uneven, thereby preventing low back pain. As a result, there is a problem that the effect of relaxing is not sufficiently exhibited, and a problem that the air permeability is deteriorated as a result of the second belt portion being further mounted around the main body portion and the wearer is uncomfortable. In particular, in the low back pain prevention belt described in Patent Document 2, the base portion of the second belt portion is fixed to the substantially central portion in the longitudinal direction of the first belt portion, and the tip portion extends to the vicinity of both longitudinal ends of the first belt portion. Because it is extended, when the second belt part is pulled and tightened while being worn on the waist of the wearer, a force is applied only to the central part in the longitudinal direction of the first belt part, and an equal pressing force is applied to the entire back part of the waist. In addition, since the first belt portion and the second belt portion are overlapped and mounted on substantially the entire waist, the air permeability is extremely deteriorated, and the above problem appears remarkably.

  The present invention has been made in view of the above points, and provides a good feeling of wearing, and even a person with poor arm strength can easily and surely attach it to the lower back part to sufficiently prevent and relieve back pain. It is an object of the present invention to provide a back pain prevention belt that can be played.

  In order to solve the above-mentioned problems, the invention according to claim 1 is formed in a substantially belt-like shape, a first belt portion having a back support portion having a predetermined longitudinal size at a substantially central portion, and a substantially belt-like shape. A back pain prevention belt comprising a pair of second belt portions disposed on the front side of the first belt portion, wherein the first belt portion has a predetermined length on both end sides of the backrest portion. Each elastic part is formed in a size in the longitudinal direction and can be expanded and contracted in the longitudinal direction, and a piece part formed in a certain longitudinal direction size is provided on each side of the elastic part. A first locking portion is provided in substantially the entire area on the front side, and a second locking portion to be locked to the first locking portion is provided on at least one back side of the piece portion, and the second belt portion is The base is fixed to the vicinity of both ends in the longitudinal direction of the backrest and the tip The disposed state in which each distracted to the piece side, the back side of the tip, characterized in that a third securing portion secured to said first locking portion, respectively.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect, the size of the back support portion in the predetermined longitudinal direction is substantially the same as that of the back side of the waist when worn around the waist of the wearer. And the predetermined longitudinal size of the elastic portion is a size that makes contact with substantially the entire side of the waist when mounted around the waist. To do.

  According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the longitudinal size of the second belt portion is a lengthwise size of the elastic portion and a longitudinal size of the piece portion. It is smaller than the sum.

  According to a fourth aspect of the present invention, in addition to the configuration according to any one of the first to third aspects, the third belt of the other second belt portion is provided on the front side of the second belt portion. A fourth locking portion that is locked to the locking portion is provided.

  According to a fifth aspect of the present invention, in addition to the configuration according to any one of the first to fourth aspects, the first locking portion, the second locking portion, the third locking portion, and the first The four locking portions are formed by hook-and-loop fasteners.

  According to the first aspect of the present invention, since the pair of second belt portions provided on the front side of the first belt portion is provided, the second belt portion is mounted after the first belt portion is mounted on the waist of the wearer. The belt portion can be pulled and further tightened, and even a person with poor arm strength can be easily and reliably attached to the lower back portion to prevent and relieve back pain. In addition, since the base portion of the second belt portion is fixed in the vicinity of both ends in the longitudinal direction of the backrest portion, and the tip portion extends to one side, the second belt portion is attached to the waist portion with the first belt portion attached. If the front end portion is pulled toward the front side of the waist, the waist pad is pressed against the waist with a uniform and strong force. Therefore, the belt for preventing back pain can be mounted in a state where the effect of preventing and mitigating back pain is sufficiently exerted. In addition, since the second belt portion is not disposed on the back support portion when it is attached to the waist, good air permeability of the back support portion is ensured, and a good wearing feeling is given to the wearer. be able to. Moreover, since the elastic part which can be expanded-contracted toward a longitudinal direction is provided in the both ends side of the backrest part, when the 2nd belt part is pulled, this elastic part shrink | contracts and slacks to a 1st belt part. Is not generated, the fit feeling is improved, and a good wearing feeling can be given to the wearer. In addition, a first locking portion and a second locking portion are provided on one piece of the first belt portion, a third locking portion is provided on the second belt portion, and a second locking portion is provided on the first locking portion. By locking the part and the third locking part, it is possible to save the space of the locking part. In addition, since the first locking portion is provided in substantially the entire area of the one portion, the lengths of the first belt portion and the second belt portion can be freely adjusted, and the back pain can be reduced while improving the fit. The effect of preventing and mitigating can be sufficiently exhibited.

  According to the second aspect of the present invention, in addition to the above-described effect, the back support portion has a size that comes into contact with substantially the entire back side of the waist when worn around the waist of the wearer. When the first belt part and the second belt part are pulled with the belt attached, the substantially entire surface of the back part of the lower back part is strongly pressed with an equal force, and the effect of preventing and reducing back pain is sufficiently exerted. Can do. In addition, the elastic part is sized so as to be in contact with substantially the entire region of the side part of the waist part when the elastic part is mounted around the waist part, so that when the second belt part is pulled, it is between the base part and the tip part of the second belt part. The first belt portion contracts at the position located in the position, so that the slack of the first belt portion can be surely prevented and a better wearing feeling can be given to the wearer.

  According to the invention described in claim 3, in addition to the above-described effect, the second belt portion has a longitudinal size smaller than the sum of the longitudinal size of the elastic portion and the longitudinal size of the piece portion. 2 The length of the belt portion is shortened and easy to handle, and the operability is improved. In addition, even when the second belt portion has been stretched somewhat after repeated use, or when the wearer's waist size is slightly smaller than the size originally intended for use, the third locking provided on the back side Since the state in which the part is locked to the first locking part can be maintained, it is possible to absorb repeated use and some differences in size, and to sufficiently prevent and relieve back pain.

  According to the invention of claim 4, in addition to the above effect, the fourth locking portion locked to the third locking portion is disposed on the front side of one second belt portion, Even when the second belt portions overlap each other when attached to the waist, if the third locking portion and the fourth locking portion of one of the second belts are overlapped and locked, Since the waist can be tightened, it is possible to absorb repeated use and significant differences in size, and to sufficiently prevent and relieve back pain.

  According to invention of Claim 5, in addition to the said effect, by forming the 1st locking part, the 2nd locking part, the 3rd locking part, and the 4th locking part with the hook-and-loop fastener, It is possible to easily attach and detach, and to freely adjust the tightening to the lower back, so that the effect of preventing and reducing back pain can be sufficiently achieved.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 to 5 show an embodiment of the present invention.

  First, the configuration will be described. Reference numeral 1A in FIG. 1 denotes a back pain prevention belt, which is wound around the waist of a person (hereinafter referred to as "wearer") who wants to wear to prevent or alleviate back pain. It is what is done.

  The low back pain prevention belt 1A includes a first belt portion 1 that is wound around the waist of the wearer and a pair of second belt portions 2 and 2 fixed to the first belt portion 1. .

  The first belt portion 1 is formed in a wide, substantially belt-like shape in which the left-right direction in FIG. 1 is the longitudinal direction (same in this specification). Specifically, the first belt portion 1 includes a back support portion 3 provided at a substantially central portion in the longitudinal direction, a pair of elastic portions 4 and 4 provided at both longitudinal ends of the back support portion 3, A pair of pieces 5, 5 provided in the longitudinal direction end (hereinafter simply referred to as “end”) direction than the portions 4, 4 are provided. First reinforcing portions 6 and 6 are provided at both end portions of the backrest portion 3 in the width direction, and second reinforcing portions 7 and 7 are provided at the end portions on the side portions 5 and 5 of the elastic portions 4 and 4 in the width direction. Is provided. A seam allowance portion 8 is formed on all outer edge portions of the first belt portion 1 and includes a backrest portion 3, elastic portions 4 and 4 including first reinforcing portions 6 and 6, and second reinforcing portions 7 and 7. The pieces 5 and 5 are sewn together.

  As shown in FIG. 1, the back support portion 3 is formed so that the upper side (the upper side shown in FIG. 1, the same in this specification) is substantially linear, and the lower side (the lower side shown in FIG. 1, the same in this specification). Is formed in an arcuate portion 9 that bulges in a substantially arc shape downward from both ends toward the central portion. The backrest portion 3 has a predetermined longitudinal size L1, that is, a size that comes into contact with substantially the entire back side of the wearer's waist when the first belt 1 is worn around the waist of the wearer (described later). Is formed.

  On the front side of the backrest portion 3 shown in FIG. 1, a mesh portion 10 is provided in which nylon fibers are meshed in a state of being flexible and hardly stretchable. By making the backrest part 3 flexible and non-stretchable by the mesh part 10, fitting the waist part of the wearer and pressing the back side of the waist part strongly while being attached to the waist part It is possible. In addition, by using the mesh netting, it is possible to ensure good air permeability when attached to the waist.

  On the back side of the backrest portion 3 shown in FIG. 2, a pile portion 11 formed of a hygroscopic material, for example, cotton is disposed. The pile part 11 absorbs sweat when worn on the waist and gives a good wearing feeling to the wearer. The vertical size of the pile portion 11 is smaller than the vertical size of the mesh portion 10, and only the lower side is sewn with the mesh portion 10 by the seam allowance portion 8, and the gap portion 12 is formed on the upper side. By releasing the upper side of the pile part 11 from the sewing by the seam allowance part 8, it becomes possible to use the space between the mesh part 10 and the pile part 11 as a storage part. For example, a warmer is stored on a cold day. Can be used, and the effect of preventing or alleviating back pain can be promoted. Further, since the gap portion 12 is formed on the upper side, when the mesh portion 10 and the pile portion 11 are accommodated, the operation of opening the pile portion 11 by hand is facilitated.

  The first reinforcing portions 6 and 6 of the backrest portion 3 are formed of a material having relatively high rigidity such as artificial leather, for example, and ensure a firm sewing state. The mesh part 10 and the pile part 11 are sewn on the center part side of the first reinforcing parts 6 and 6, and the elastic part 4 and the base part (described later) of the second belt part 2 are sewn on the end part side. ing.

  In the elastic portion 4, stretch members 13 made of a stretchable material such as a blend of nylon and polyurethane are arranged at equal intervals along the longitudinal direction. In addition, a large number of non-stretchable members (not shown) having flexibility and non-stretchability, such as nylon threads, are arranged in the vertical direction of the elastic portion 4. The stretch member 13 and the non-stretchable member (not shown) are fixed to each other by a method such as sewing or adhesion. Therefore, the elastic portion 4 expands and contracts only in the longitudinal direction.

  The second reinforcing portions 7 and 7 of the elastic portion 4 are also formed of the same material as that of the first reinforcing portions 6 and 6 to ensure a strong sewing state. A stretch member 13 of the elastic portion 4 is sewn on the center side of the second reinforcing portions 7, 7, and a piece portion 5 is sewn on the end side.

  The size L2 in the longitudinal direction of the elastic portion 4 is a predetermined longitudinal size, that is, a size that comes into contact with substantially the entire side of the wearer's waist when worn around the waist of the wearer (described later). Is formed.

  Each of the pieces 5 is formed in a substantially U shape in which each end portion 14 has a substantially arc shape, and a first locking portion 15 made of a female member of a hook-and-loop fastener is provided in a substantially entire area on the front side shown in FIG. It has been. On the other hand, as shown in FIGS. 2 and 4, the mesh portion 16 is formed of the same material as the back side of the backrest portion 3 over substantially the entire back surface of the piece portion 5, and is flexible and non-stretchable. To fit the waist of the wearer and to secure a firm locking state of the first locking portion 15.

  In the vicinity of the end portion 14 of one piece 5 (left side in FIG. 2), a second locking portion 17 made of a male member of a hook-and-loop fastener is provided. The second locking part 17 is locked to the first locking part 15 of the other part 5 (left side in FIG. 1) to maintain the state where the first belt part 1 is mounted on the waist of the wearer.

  As shown in FIG. 1, a pair of second belt portions 2 and 2 are provided on the front side of the low back pain prevention belt 1A.

  The second belt portion 2 is formed by forming a material such as a blend of polyester fiber and polyurethane rubber fiber into a pair of wide belt-like members and arranging them in a substantially V shape when viewed from the front. The second belt portion 2 has stretchability in the longitudinal direction. Of the pair of band-shaped members, the end portions on the expansion side form base portions 18 and 18 respectively, and are sewn into the first reinforcing portion 6, and the end portions on the reduction side form a tip portion 19, The side is extended to the one-piece piece 5 side, and the other end is arranged to extend to the other-piece piece piece 5 side. By forming the second belt portion 2 with a pair of members, the second belt portion 2 can have high elasticity. Further, the belt-like member is formed in a substantially V shape in front view, the second belt portion 2 is formed with base portions 18 and 18 that are sewn into the first reinforcing portion 6 at the end portions on the expansion side, and on the reduction side. By forming the end portion at the tip portion 19, the tip portion 19 can be easily gripped and pulled, and a wide and uniform tensile force can be applied to the first belt portion 1 in the vertical direction.

  As shown in FIG. 1, the longitudinal size L3 of the second belt portion 2 is smaller than the total L4 of the longitudinal direction size of the elastic portion 4 and the longitudinal direction size of the piece portion 5, and the distal end portion of the second belt portion 2. 19 is located in the 2nd reinforcement part 7 vicinity side on the piece part 5 in front view.

  As shown in FIG. 3 and FIG. 5, a third locking portion 20 made of a male member of a hook-and-loop fastener is provided in the vicinity of the rear end portion 19 of the second belt portion 2. Moreover, the 4th latching | locking part 21 which consists of a female member of a hook-and-loop fastener is provided in the front side of the front-end | tip part 19 vicinity of the 2nd belt part 2 of one side (left side shown in FIG. 1).

  Next, the operation of this embodiment will be described.

  When attaching the lower back pain prevention belt 1A to the lower back portion of the wearer 22 shown in FIG. 6, first, the lower back pain prevention belt 1A shown in FIG. 1 to FIG. The back side of the backrest portion 3 of the first belt portion 1 is brought into contact with the back side (that is, the back side) of the waist portion of the wearer 22 in the state of facing the wearer 22. Thereby, the pile part 11 and the mesh part 10 of the gap | interval part 12 contact | abut on the back side of the waist | hip | lumbar part of the wearer 22. FIG.

  In this state, the wearer 22 grasps the pieces 5 and 5 at both ends of the first belt portion 1 and pulls the pieces 5 and 5 in the front side (ie, abdominal side) direction of the waist. Since the vicinity of the end portion 14 of the pieces 5 and 5 overlaps on the front side of the waist of the wearer 22, the wearer 22 faces the piece 5 on the one side (the side gripped by the right hand) upward. With the piece 5 on the other side (the side gripped by the left hand) facing downward, the pieces 5, 5 are pulled in the central direction on the front side of the waist. In this state, both elastic portions 4 and 4 extend in the longitudinal direction, and the backrest portion 3 is pressed against the back side of the waist of the wearer 22.

  When the wearer 22 presses the back of one piece 5 against the front of the other piece 5 while the backrest 3 is pressed against the wearer 22, the second locking of the one piece 5 is performed. The part 17 is locked to the first locking part 15 of the other piece part 5.

  Next, the wearer 22 holds the pair of second belt portions 2 and 2 and pulls them in the front side direction of the waist. Accordingly, the tensile force applied to the second belt portion 2 is transmitted to the first belt portion 1 through the first reinforcing portion 6 to which the base portion 18 is fixed, and the waist rest portion 3 of the first belt portion 1 is attached to the wearer 22. It is pulled in the direction of the front of the lumbar region and is pressed with a stronger force on the back side of the lumbar region of the wearer.

  At this time, the tensile force applied to the elastic part 4 is weakened by the amount that the waist pad part 3 is pulled more strongly, and the elastic part 4 contracts.

  When the wearer 22 presses the back surfaces of both the second belt portions 2 and 2 against the front of the first belt portion 1 while the backrest portion 3 is pressed against the wearer 22 with a strong force, the second belt The second and second third locking portions 20 are locked to the first locking portion 15 of the first belt portion 1. Thereby, as shown in FIG. 6, the low back pain prevention belt 1 </ b> A is attached to the waist of the wearer 22.

  Thus, in this embodiment, by providing the pair of second belt portions 2, 2 disposed on the front side of the first belt portion 1, the first belt portion 1 is attached to the waist portion of the wearer 22. The second belt portion 2 can be pulled and further tightened. Further, since the base portion 18 of the second belt portion 2 is fixed in the vicinity of both end portions in the longitudinal direction of the backrest portion 3 and the tip portion 19 extends to the one portion 5 side, the first belt portion 1 is attached to the wearer 22. If the tip 19 of the second belt portion 2 is pulled toward the front side of the waist while being attached to the waist, the waist rest 3 is pressed against the waist with a uniform strong force. In addition, since the second belt portion 2 is not disposed on the backrest portion 3 when being mounted on the waist, good air permeability of the backrest portion 3 is ensured.

  Further, in this embodiment, the first locking portion 15 can be locked with the second locking portion 17 and the third locking portion 20, so that the space of the locking portion can be saved. . Moreover, since the first locking portion 15 is provided in substantially the entire area of the piece portion 5, the lengths of the first belt portion 1 and the second belt portion 2 can be freely adjusted.

  Further, in this embodiment, when the backrest 3 is worn around the waist of the wearer 22, the backrest 3 is sized so as to be in contact with substantially the entire back side of the waist, so that the backrest 3 is attached around the waist. When the first belt portion 1 and the second belt portion 2 are pulled, the substantially entire surface of the back portion of the waist can be strongly pressed with an equal force. Further, when the elastic part 4 is sized so as to abut the substantially entire region of the side part of the waist part when the elastic part 4 is mounted around the waist part, the base part 18 and the tip of the second belt part 2 are pulled when the second belt part 2 is pulled. The first belt portion 1 contracts at a position between the portion 19 and the sagging of the first belt portion 1 can be reliably prevented.

  Further, in this embodiment, the second belt portion 2 has a longitudinal size L3 that is smaller than the total length L4 of the longitudinal size of the elastic portion 4 and the longitudinal size of the piece portion 5, thereby providing the second belt portion 2. The length of the part 2 is shortened and becomes easy to handle. Moreover, even if the second belt portion 2 is somewhat stretched by repeated use, or when the waist size of the wearer 22 is slightly below the size that is originally intended for use, the third belt provided on the back side. Since the state in which the locking portion 20 is locked to the first locking portion 15 can be maintained, repeated use and some differences in size can be absorbed.

  Further, in this embodiment, the first locking portion 15, the second locking portion 17, and the third locking portion 20 are formed by the hook-and-loop fastener, so that each can be easily attached and detached and can be tightened to the waist. It becomes possible to adjust to.

  In addition, when the second belt part 2 is greatly extended by repeated use or when the waist size of the wearer 22 is significantly smaller than the size that is supposed to be used, the front side of the waist part of the wearer 22 is used. The vicinity of the tip end portions 19 of both the second belt portions 2 overlap each other. In that case, the wearer 22 has the second belt part 2 on the one side (side gripped with the right hand) near the tip 19 and the second side (side gripped with the left hand). The vicinity of the front end portion 19 of the belt portion 2 is overlapped, and the back surface of the second belt portion 2 on one side is pressed against the front surface of the other second belt portion 2. As a result, the third locking portion 20 of one second belt portion 2 is locked to the fourth locking portion 21 of the other second belt portion 2.

  Thus, in this embodiment, the fourth locking portion 21 that is locked to the third locking portion 20 is disposed on the front side of one second belt portion 2, so that the waist portion Even when the second belt portions 2 overlap with each other when attached, the second locking portion 20 and the fourth locking portion 21 of one second belt portion 2 are overlapped and locked. Since the waist part can be tightened by the belt part 2, repeated use and a large difference in size can be absorbed.

  Further, in this embodiment, since the fourth locking portion 21 is also formed by the hook-and-loop fastener, each can be easily attached and detached, and the tightening to the waist can be freely adjusted.

  In this embodiment, the first locking portion 15, the second locking portion 17, the third locking portion 20, and the fourth locking portion 21 are formed by surface fasteners, but the present invention is not limited thereto. Any one having a mutual locking function may be used. For example, the present invention can be realized using male and female hooks, buttons, clips, strings and the like that can be fitted to each other.

  It goes without saying that the above embodiment is an exemplification, and does not mean that the present invention is limited to the above embodiment.

It is a front view of the backache prevention belt which concerns on embodiment of this invention. It is a rear view of a back pain prevention belt same as the above. It is a front view of the state which turned over the 2nd belt part of the belt for lumbago prevention same as the above. It is the side view seen from the arrow A direction of the belt for lumbago prevention same as the above. It is a side view of the state which stood up the 2nd belt part of the belt for preventing back pain same as the above. It is a figure which shows the state with which the belt for the back pain prevention same as the above was mounted | worn by the wearer's waist | hip | lumbar part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1A ... Back pain prevention belt 1 ... 1st belt part 2 ... 2nd belt part 3 ... Lumbar rest part 4 ... Elastic part 5 ... Single part 14 ... End part 15 ... 1st locking part 17 ... 2nd locking part 18 ... Base 19 ... Tip part 20 ... 3rd locking part 21 ... 4th locking part 22 ... Wearer L1 ... predetermined longitudinal size L2 ... predetermined longitudinal size L3 ... longitudinal size of second belt portion L4 ... longitudinal size of elastic portion and longitudinal direction of one piece Sum with size

Claims (5)

A first belt portion formed in a substantially band shape and provided with a back support portion having a predetermined longitudinal size at a substantially central portion, and a pair of first belts formed in a substantially band shape and disposed on the front side of the first belt portion, respectively. A back pain prevention belt comprising two belt portions,
The first belt portion is provided with an elastic portion that is formed in a predetermined longitudinal size on both end sides of the backrest portion and can be expanded and contracted in the longitudinal direction, and constant on the side portion side of the elastic portion. Each of which is formed in a longitudinal direction, and a first locking portion is provided in substantially the entire front side of the piece, and the first locking portion is provided on at least one back side of the piece. Providing a second locking portion to be locked;
The second belt portion is disposed in a state in which a base portion is fixed in the vicinity of both end portions in the longitudinal direction of the backrest portion, and a distal end portion is extended to the one side portion, and on the back side of the distal end portion. Is provided with a third locking portion to be locked to the first locking portion, respectively.   The predetermined length in the longitudinal direction of the backrest is a size that comes into contact with substantially the entire back side of the waist when worn around the waist of the wearer, and the predetermined length in the longitudinal direction of the elastic portion. The waist pain prevention belt according to claim 1, wherein the belt has a size that makes contact with substantially the entire region of the side portion of the waist when worn around the waist.   3. The length of the second belt portion in the longitudinal direction is smaller than the sum of the length in the longitudinal direction of the elastic portion and the length of the piece in the longitudinal direction. Belt for preventing back pain.   The fourth locking portion that is locked to the third locking portion of the other second belt portion is disposed on the front side of the one second belt portion. 4. A back pain prevention belt according to any one of 1 to 3.   The said 1st latching | locking part, the said 2nd latching | locking part, the said 3rd latching | locking part, and the 4th latching | locking part were formed by the surface fastener. The belt for preventing back pain as described.