Waist supporter

Abstract

To provide a waist supporter which can generate a balanced tightening force as well as making a fixing force improved.SOLUTION: A waist supporter 1 is for wrapping around a waist, including a first tightening adjustment means which tightens an abdominal cavity and a lumbar by a belt-like band 10, a second tightening adjustment means which tightens the abdominal cavity and the lumbar by an auxiliary band 20, and a third tightening adjustment means which tightens the abdominal cavity and the lumbar by a moving pulley part 30. The auxiliary band 20 and the moving pulley part 30 are fastened to the belt-like band 10. The first tightening adjustment means and the second tightening adjustment means operate in the same direction for tightening the abdominal cavity and the lumbar, while the third tightening adjustment means operates in a reverse direction.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a lumbar supporter that is wrapped around the waist to prevent and relieve lower back pain. [Background technology]

[0002] Conventionally, users have worn lumbar supporters around their waists to prevent and relieve back pain. Lumbar supporters tighten the abdominal cavity and lower back to increase intra-abdominal pressure and limit mobility, stabilizing the lumbar spine and sacroiliac joints while compressing the body to relieve pain and provide a sense of security to the user.

[0003] Therefore, there is a demand for a waist supporter that can tightly tighten the abdominal cavity and waist even for women and elderly people with weak strength, and many tightening technologies related to this have been disclosed. They can be broadly divided into an actuated belt type and a movable pulley type. Conventionally, the actuated belt type was mainstream, but in recent years, the movable pulley type has been developed for elderly people and women who have weak tightening strength and because it is easy to fine-tune. The actuated belt type has one movable pulley function of a ring that improves the tightening force, while the movable pulley type uses several pulleys, so the tightening force can be improved significantly. For example, Patent Document 1 and Patent Document 2 are examples of the actuated belt type, and Documents 3 and 4 are examples of the movable pulley type. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2016-54793 A [Patent Document 2] JP 2015-231533 A [Patent Document 3] JP 2017-160557 A [Patent Document 4] JP 2021-137518 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, with these moving pulley methods, the support that supports the pulley is divided into the left and right first and second supports, and the part that touches the lumbar vertebrae is made of wire, so there are problems with not being able to prevent the lower back from arching too much, and not being able to directly compress the lumbar vertebrae, so there is no effect in alleviating lower back pain.In addition, there are problems with the position of the lumbar supporter shifting up and down when the user stands or sits while using it, causing it to move away from the intended fixed position, and with the supporter being divided into two, applying tension to the wire causes the left and right supports to shift. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention employs the following means. The invention of claim 1 is a waist supporter to be worn around the waist, comprising a first fastening and adjusting means for fastening the abdominal cavity and the lumbar region with a belt-like band part, a second fastening and adjusting means for fastening the abdominal cavity and the lumbar region with an auxiliary band part, and a third fastening and adjusting means for fastening the abdominal cavity and the lumbar region with a movable pulley part, the auxiliary band part and the movable pulley part being fixed to the belt-like band part, the first fastening and adjusting means and the second fastening and adjusting means acting in the same direction to fasten the abdominal cavity and the lumbar region, and the third fastening and adjusting means acting in the opposite direction. This allows the user to first wrap the belt-like band part of the waist supporter of the present invention around the body and tighten it to a certain extent with the first fastening and adjusting means, and then further tighten the abdominal cavity and the lumbar region in the same direction with the movable pulley effect of one of the rings of the second fastening and adjusting means. Finally, the user can easily tighten the abdominal cavity and the lumbar region in the opposite direction with a weak force with the movable pulley effect of several pulleys of the third fastening and adjusting means. Therefore, since the second tightening and adjusting means tightens the entire waist area, and the second tightening and adjusting means and the third tightening and adjusting means tighten in opposite directions, a balanced tightening force can be generated and the fixing force can be improved. Therefore, even if the user stands or sits while using the waist support, it does not shift up or down, and the abdominal cavity and waist can be stably tightened.

[0007] The invention of claim 2 further comprises a back support portion, which has a structure that can be freely attached to the belt-like band portion and a pocket structure into which a hard plate having a shape that fits the user's lumbar vertebrae can be inserted, and the plate has a slit. This prevents excessive arching of the lower back, compresses the lumbar vertebrae, relieves lower back pain, and gives the user a comfortable fit.

[0008] The invention of claim 3 is characterized in that the belt-shaped band portion is formed in a belt shape that is symmetrical from left to right and from top to bottom, has supports on the left and right of the center of the belt-shaped band portion, and has a gusset portion between the supports. As a result, when tightening by the moving pulley is strengthened, the gusset portion has a structure that can be distorted, so that the left moving pulley support attached to the left support moves to the right and the right moving pulley support attached to the right support moves to the left, narrowing the gap between the left and right supports and improving the tightening force.

[0009] The invention of claim 4 is characterized in that the auxiliary band section has four auxiliary bands, a left abdominal auxiliary band for fastening the left side of the abdominal cavity, a right abdominal auxiliary band for fastening the right side of the abdominal cavity, a left waist auxiliary band for fastening the left side of the waist, and a right waist auxiliary band for fastening the right side of the waist, which are arranged symmetrically on the left and right and up and down on the belt-like band section, and the auxiliary bands have a fixed band having one end fixed to the belt-like band section and the other end fixed to a ring, and an operating band having one end fixed to the belt-like band section, one end inserted through the ring, and the other end fixed to the auxiliary band section.Therefore, the ring of the auxiliary band section functions as a single movable pulley, and the left and right abdominal cavities and waist sections can be evenly fastened.

[0010] The invention of claim 5 is characterized in that the four moving pulleys, a left abdominal moving pulley for fastening the left side of the abdominal cavity, a right abdominal moving pulley for fastening the right side of the abdominal cavity, a left hip moving pulley for fastening the left side of the waist, and a right hip moving pulley for fastening the right side, are arranged symmetrically on the belt-shaped band, and the moving pulleys are composed of one or more pulleys. As a result, when the user pulls the left operating part of the third tightening adjustment means, the right hip moving pulley support moves leftward and the left hip moving pulley support moves rightward due to the moving pulley effect of several pulleys, so that the waist can be further tightened easily even with a weak force. When the user pulls the right operating part, the right abdominal moving pulley support moves leftward and the left abdominal moving pulley support moves rightward due to the moving pulley effect of several pulleys, so that the abdominal cavity can be further tightened easily even with a weak force. In addition, fine adjustment of the tightening force can be easily performed when the user stands or sits.

[0011] The invention of claim 6 is characterized in that the four moving pulleys of the moving pulley unit are connected by a wire, and a wire stopper is provided in the center of the wire, which makes it possible to prevent the wire from shifting left and right.

[0012] The invention of claim 7 is characterized in that the belt-like band portion and the auxiliary band portion are made of a non-elastic material. As a result, although supporters are usually made of elastic materials, they can be made of mesh material or urethane material, which makes it possible to reduce weight and improve breathability. Effect of the Invention

[0013] The present invention has three tightening and adjusting means, and the user wraps the belt-like band of the waist support of the present invention around the body by the first tightening and adjusting means, tightens it to a certain extent, then the movable pulley effect of the ring of the second tightening and adjusting means allows the user to tighten it further in the same direction, and finally, the movable pulley effect of several pulleys of the third tightening and adjusting means allows the user to easily tighten it in the opposite direction even with a weak force. As a result, the second tightening and adjusting means tightens the entire waist circumference, and the second tightening and adjusting means and the third tightening and adjusting means tighten in opposite directions, so that a balanced tightening force can be generated and the fixing force can be improved. Therefore, even if the user stands or sits while using the waist support, the abdominal cavity and waist can be stably tightened without shifting up and down. In addition, since the movable pulley support is fixed to the support on the left and right of the center of the belt-like band, the left and right supports will not shift even if tension is applied to the wire. And, since it has a back support, it is possible to prevent the waist from curving too much and directly compress the lumbar vertebrae, so it is very effective in relieving lower back pain. [Brief description of the drawings]

[0014] [Figure 1] 1 shows the overall configuration of a lumbar support 1 of the present invention. [Diagram 2] The first tightening and adjusting means, a strap-like band portion 10, is shown. [Diagram 3] The back surface of the band portion 10 is shown. [Figure 4] 1 shows an auxiliary band portion 20 as a second fastening adjustment means attached to a belt-like band portion 10 as a first fastening adjustment means. [Diagram 5] 13 shows a state in which the left auxiliary band 20L of the auxiliary band portion 20 is tilted to the right. [Figure 6] 1 shows a movable pulley portion 30, which is a third tightening and adjusting means, attached to a band portion 10, which is a first tightening and adjusting means. [Figure 7] The back support part 40 to be attached to the back of the belt-like band part 10 is shown in Fig. 7(a) which shows a front view from the user's back, Fig. 7(b) which shows the back side, Fig. 7(c) which shows a front view of the plate to be inserted into the back support part 40, Fig. 7(d) which shows an AA' cross-sectional view, and Fig. 7(e) which shows a BB' cross-sectional view. [Figure 8] Figure 8 shows how a user puts on the waist support of the present invention, with (a) showing the putting on of the belt-shaped band portion 10, which is the first tightening and adjustment means, (b) showing how the auxiliary band portion 20, which is the second tightening and adjustment means, tightens the abdominal cavity and lumbar region, and (c) showing how the movable pulley portion 40, which is the third tightening and adjustment means, tightens the abdominal cavity and lumbar region. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 shows the overall structure of a lumbar support 1 of the present invention. Lumbar support 1 of the present invention is configured symmetrically from left to right and from top to bottom as shown in Fig. 1, and has a belt-shaped band portion 10 which is a first fastening and adjustment means, an auxiliary band portion 20 which is a second fastening and adjustment means, and a moving pulley portion 30 which is a third fastening and adjustment means.

[0016] Here, we will explain how to assign symbols. When it is necessary to indicate left and right, L is added after the number for left and R for right. When it is necessary to indicate top and bottom, U is added after the number for top (abdominal cavity) and D for bottom (lumbar region).

[0017] FIG. 2 shows only the belt-like band portion 10, which is the first fastening adjustment means, with the second and third fastening adjustment means of FIG. 1 removed. In the center of the belt-like band portion 10, there is a left support 12L that abuts on the left side of the back and a right support 12R that abuts on the right side of the back. The left moving pulley support 31L of the moving pulley portion 30 is attached to the left support 12L. The right moving pulley support 31R of the moving pulley portion 30 is attached to the right support 12R. There is a gusset portion 11 between the left support 12L and the right support 12R. The gusset portion 11 is configured so that when an inward force is applied to the left and right supports 12, it distorts, so that the left and right supports 12 can move inward. The belt-like band portion 10 is preferably made of a mesh material to improve breathability and reduce weight. The left mesh band 13L tightens the left abdominal cavity and lumbar region, and the right mesh band 13R tightens the right abdominal cavity and lumbar region. The left reinforcing band 14L reinforces the left mesh band 13L so as to withstand the tensile force when the band-like band portion 10 is worn, and the right reinforcing band 14R reinforces the right mesh band 13R so as to withstand the tensile force when the band-like band portion 10 is worn. A loop (female) hook-and-loop fastener is sewn to the edge of the left fastener 16L and the left sewing frame 15L at the left end of the band-like band portion 10 in the left attachment body 16L. Also, a loop (female) hook-and-loop fastener is sewn to the edge of the right attachment body 16R and the right sewing frame 15R at the right end of the band-like band portion 10 in the right attachment body 16R.

[0018] 3 shows the back side of the belt-like band part 10. A hook (male) hook-and-loop fastener is sewn to the back side of the right attachment body 16R. When the user wears the belt-like band part 10, the hook (male) hook-and-loop fastener on the back side of the right attachment body 16R engages with the loop (female) hook-and-loop fastener on the left attachment body 16L. A loop (female) hook-and-loop fastener is also sewn to the backrest attachment frame 17, and the hook-and-loop fastener of the attachment frame 43 on the back side of the backrest 40 in FIG. 7 engages with this.

[0019] Fig. 4 shows the auxiliary band portion 20, which is the second fastening and adjusting means, attached to the belt-like band portion 10, which is the first fastening and adjusting means. In Fig. 4, in order to clearly show the structure of the auxiliary band portion 20, which is the second fastening and adjusting means, the auxiliary band portion 20 is shown in solid lines, and the structure of the belt-like band portion 10, which is the first fastening and adjusting means, is shown in dashed lines. The auxiliary band portion 20 has an attachment member 21, a sewing frame body 22, and an auxiliary band 23 on both the left and right ends, and has a structure that is symmetrical left and right and up and down.

[0020] A loop (female) hook-and-loop fastener is sewn to the edge of the left fastener 21L and the left sewing frame 22L on the left end of the auxiliary band portion 20. A loop (female) hook-and-loop fastener is sewn to the edge of the right fastener 21R and the right sewing frame 22R on the right end of the auxiliary band portion 20. A hook-and-loop fastener is sewn to the back surface of the left fastener 21L and the left sewing frame 22L on the edge of the left fastener 21L. Also, a hook-and-loop fastener is sewn to the back surface of the right fastener 21R and the right sewing frame 22R on the edge of the right fastener 21R.

[0021] The auxiliary band portion 20 has four auxiliary bands 23: a left abdominal cavity auxiliary band 23LU for fastening the left abdominal cavity portion, a right abdominal cavity auxiliary band 23RU for fastening the right abdominal cavity portion, a left waist auxiliary band 23LD for fastening the left waist portion, and a right waist auxiliary band 23RD for fastening the right waist portion.

[0022] The left abdominal cavity auxiliary band 23LU is composed of a left abdominal cavity fixing band 26LU, a ring 25, and a left abdominal cavity operating band 24LU. One end of the left abdominal cavity fixing band 26LU is fixed to the left support 12L of the belt-like band part 10, and the other end is inserted through the ring 25 and then folded back to be fixed to the left support 12L of the belt-like band part 10 so as to form a substantially V-shape. One end of the left abdominal cavity operating band 24LU is fixed to the left sewing frame 15L of the belt-like band part 10, and the other end is inserted through the ring 25 and then folded back to be fixed to the left sewing frame 22L of the auxiliary band part 20.

[0023] The left waist auxiliary band 24LD is composed of a left waist fixing band 26LD, a ring 25, and a left waist actuating band 24LD. One end of the left waist fixing band 26LD is fixed to the left support 12L of the belt-like band part 10, and the other end is inserted through a ring 25 and then folded back to be fixed to the left support 12L of the belt-like band part 10 so as to form a substantially V-shape. One end of the left waist actuating band 24LD is fixed to the left sewing frame 15L of the belt-like band part 10, and the other end is inserted through a ring 25 and then folded back to be fixed to the left sewing frame 22L of the auxiliary band part 20.

[0024] The right abdominal cavity auxiliary band 23RU is composed of a right abdominal cavity fixing band 26RU, a ring 25, and a right abdominal cavity operating band 24RU. One end of the right abdominal cavity fixing band 26RU is fixed to the right support 12R of the belt-like band part 10, and the other end is inserted through the ring 25 and then folded back to be fixed to the right support 12R of the belt-like band part 10 so as to form a substantially V-shape. One end of the right abdominal cavity operating band 24RU is fixed to the right sewing frame 15R of the belt-like band part 10, and the other end is inserted through the ring 25 and then folded back to be fixed to the right sewing frame 22R of the auxiliary band part 20.

[0025] The right waist auxiliary band 24RD is composed of a right waist fixing band 26RD, a ring 25, and a right waist operating band 24RD. One end of the right waist fixing band 26RD is fixed to the right support 12R of the belt-like band portion 10, and the other end is inserted through the ring 25 and then folded back to be fixed to the right support 12R of the belt-like band portion 10 so as to form a substantially V-shape. One end of the right waist operating band 24RD is fixed to the right sewing frame 15R of the belt-like band portion 10, and the other end is inserted through the ring 25 and then folded back to be fixed to the right sewing frame 22R of the auxiliary band portion 20.

[0026] FIG. 5 shows a state in which the left auxiliary band 20L of the auxiliary band portion 20 has been released from the hook-and-loop fastener of the left fastener 16L of the belt-like band portion 10 and has been turned to the right. When tightening the abdominal cavity and lumbar region on the left side with the left auxiliary band part 20L, the user removes the left attachment body 21L of the left auxiliary band part 20L from the left attachment body 16L of the belt-like band part 10 and pulls it with the ring 25 as a fulcrum, so that the ring 25 slides to the left on the left operating belt 24L and the distance between the left sewing frame body 15L of the belt-like band part 10 and the ring 25 becomes shorter. Then, by engaging the left attachment body 21L with the left attachment body 16L of the belt-like band part 10, the abdominal cavity and lumbar region on the left side can be tightened. At this time, the ring functions as a movable pulley and can increase the tightening force.

[0027] Similarly, when tightening the right abdominal cavity and waist with the right auxiliary band 20R, the user removes the right attachment body 21R of the right auxiliary band 20R from the right attachment body 16R of the belt-like band 10 and pulls it using the ring 25 as a fulcrum, causing the ring 25 to slide to the right on the right operating belt, shortening the distance between the right sewing frame 15R of the belt-like band 10 and the ring 25. By engaging the right attachment body 21R with the right attachment body 16R of the belt-like band 10, the right abdominal cavity and waist can be tightened.

[0028] In this way, the auxiliary band portion 20 is formed symmetrically from left to right and from top to bottom, and the left abdominal cavity auxiliary band 23LU, the left waist auxiliary band LD, and the right abdominal cavity auxiliary band 23RU, and the right waist auxiliary band RD form a V-shape as shown in the figure, and the fastening forces are balanced, so that the abdominal cavity and the waist can be stably fastened and the fixing force can be improved. Also, when the auxiliary band portion 20 is fastened by the second fastening adjustment means, the left support member 12L of the belt-like band portion 10 moves to the left and the right support member 12R moves to the right, so that the gusset portion is stretched without being distorted.

[0029] Fig. 6 shows the movable pulley unit 30, which is the third tightening and adjusting means, attached to the belt-like band unit 10, which is the first tightening and adjusting means. In Fig. 6, in order to clarify the structure of the movable pulley unit 30, which is the third tightening and adjusting means, the movable pulley unit 30 is shown by a solid line, and the belt-like band unit 10, which is the first tightening and adjusting means, and the auxiliary band unit 20, which is the second tightening and adjusting means, are shown by a broken line. The movable pulley unit 30 has an operating unit 35 and a movable pulley support 31, and has a symmetrical structure in the left-right and up-down directions. The left movable pulley unit 30L has a left abdominal cavity movable pulley support 31LU and a left hip movable pulley support 31LD that tightens the left hip, and one or more pulleys 33 (two pulleys 33 in Fig. 6) are arranged on the left movable pulley support 31L, and the left movable pulley support 31L is fixed to the left support 12L of the belt-like band unit 10. The movable pulley unit 30 also has a left operating unit 35L that operates the wire 32 and a left wire guide 34L that guides the wire 32. The left wire guide 34L is fixed to the left support 12L of the belt-shaped band unit 10.

[0030] Similarly, the right moving pulley unit 30R has a right abdominal cavity moving pulley support 31RU that fastens the right abdominal cavity and a right hip moving pulley support 31RD that fastens the right hip, and one or more pulleys 33 (two pulleys 33 in FIG. 6) are disposed on the right pulley support 31R, and the right moving pulley support 31R is fixed to the right support 12R of the belt-like band unit 10. In addition, it has a right operating unit 35R that operates the wire 32 and a right wire guide 34R that guides the wire 32, and the right wire guide 34R is fixed to the right support 12R of the belt-like band unit 10.

[0031] The wire 32 connected to the left operation unit 35L is inserted through the left wire guide 34L, wound around the pulley 33 of the right hip moving pulley support 31RD, then around the pulley 33 of the left hip moving pulley support 31LD, then around the pulley 33 of the right hip moving pulley support 31RD, then around the pulley 33 of the left hip moving pulley support 31LD, then around the pulley 33 of the right abdominal moving pulley support 31RU, then around the pulley 33 of the left abdominal moving pulley support 31LU, then around the pulley 33 of the right abdominal moving pulley support 31RU, then around the pulley 33 of the left abdominal moving pulley support 31LU, then through the right wire guide 34R, and connected to the right operation unit 35R. There is no particular restriction on the way the wire is wound as long as it can obtain a moving pulley effect. In addition, the center of the wire 32 has a wire clip 36 to prevent the wire 32 from shifting left and right, and the wire clip 36 is fixed to the belt-like band portion 10.

[0032] When the user pulls the left operating part 35L, the wire 32 moves leftward, a leftward force is applied to the right hip moving pulley support 31RD through the pulley 33, and a rightward force is applied to the left hip moving pulley support 31LD through the pulley 33. As a result, the right hip moving pulley support 31RD moves leftward and the left hip moving pulley support 31LD moves rightward, narrowing the gap between the left hip moving pulley support 31LD and the right hip moving pulley support 31RD. As a result, the lower part of the gusset part 11 of the belt-like band part 10 is slightly distorted, narrowing the gap between the left support 12L and the right support 12R, and tightening the hips.

[0033] Similarly, when the user pulls the right operating part 35R, the wire 32 moves to the right, a rightward force is applied to the left abdominal moving pulley support 31LU through the pulley 33, and a leftward force is applied to the right abdominal moving pulley support 31RU through the pulley 33. As a result, the left abdominal moving pulley support 31LU moves to the right and the right abdominal moving pulley support 31RU moves to the left, narrowing the gap between the left abdominal moving pulley support 31LU and the right abdominal moving pulley support 31RU. As a result, the upper part of the gusset part 11 of the belt-shaped band part 10 is slightly distorted, narrowing the gap between the left support 12L and the right support 12R, and tightening the abdominal part.

[0034] In this way, the belt-like band portion 10, which is the first tightening and adjustment means, and the auxiliary band portion 20, which is the second tightening and adjustment means, act in the same direction to tighten the abdominal cavity and waist, while the moving pulley portion 30, which is the third tightening and adjustment means, acts in the opposite direction, so that a balanced tightening force can be generated. Also, since the auxiliary band portion 20 tightens the entire waist area, the fixing force is increased, and the waist support can be stably tightened around the abdominal cavity and waist without shifting up and down even when the user stands or sits while using the waist support.

[0035] FIG. 7 shows a back support 40 attached to the back of the belt-like band 10 to compress the lumbar vertebrae, prevent excessive curvature of the waist, and improve the fit of the user. FIG. 7(a) is a front view of the surface of the back support 40 seen from the back of the user, and FIG. 7(b) is its back. The back support 40 has a pocket structure, and the surface is made of a mesh material 41 backed with a cushioning material, and a hook (male) hook-and-loop fastener attachment frame 43 is sewn to the center of the back. The hook-and-loop fastener of the back support attachment frame 17 on the back of the belt-like band 10 is attached to the center of the back. FIG. 7(c) shows a plate 51 to be inserted into the pocket of the back support, which is made of a hard synthetic resin. The plate 51 is formed in a shape close to the shape of the user's back. FIG. 7(c) shows a front view of the back of the user seen from the back, FIG. 7(d) is an AA' cross-sectional view thereof, and FIG. 7(e) is a BB' cross-sectional view thereof. The AA' cross section is an approximate S-shape that resembles the shape of the spine, and the BB' cross section is a concave shape that resembles the shape of the user's back. The plate 51 is made of hard synthetic resin, but has slits 52 in the center of the top and bottom to allow for a certain degree of flexibility. Although not shown, it is also preferable to provide several approximately circular holes to reduce weight.

[0036] Figure 8 shows how a user puts on the waist supporter 1 of the present invention, where Figure 8(a) shows the putting on of the belt-shaped band portion 10, which is the first tightening and adjustment means, Figure 8(b) shows how the auxiliary band portion 20, which is the second tightening and adjustment means, tightens the abdominal cavity and lumbar region, and Figure 8(c) shows how the movable pulley portion 30, which is the third tightening and adjustment means, tightens the abdominal cavity and lumbar region.

[0037] When a user wears the waist supporter 1 of the present invention, first, the user wears the belt-like band part 10, which is the first fastening and adjustment means. As shown in Fig. 8(a), the user places the back support part 40 on the lumbar vertebrae, holds the left attachment part 16L and the right attachment part 16R of the belt-like band part 10 in their hands, wraps it around their waist, and tightens and fastens the hook (male) hook-and-loop fastener on the back of the right attachment part 16L to the loop (female) hook-and-loop fastener of the left attachment part 16L.

[0038] Next, the ring 25 of the auxiliary band part 20, which is the second tightening adjustment means, operates as a movable pulley to further tighten in the same direction. As shown in Fig. 8(b), the user holds the left fastening member 21L and the right fastening member 21R of the auxiliary band part 20 with their hands, tightens the left and right fastening members 21, and fastens the left and right fastening members 21 to the left and right fastening members 16 of the belt-like band part 10. At this time, the ring 25 moves, and the abdominal cavity and lumbar region can be further tightened with a weak force by a single movable pulley effect.

[0039] Next, as shown in Fig. 8(c), the user further tightens the waist with the movable pulley unit 30, which is the third tightening adjustment means. The user pulls the left operating part 35L of the movable pulley unit 30, and the left operating part 35L is engaged with the left attachment member 16L of the belt-like band unit 10 or the left attachment member 21L of the auxiliary band unit 20. At this time, the right hip moving pulley support 31RD moves leftward, and the left hip moving pulley support 31LD moves leftward, narrowing the gap between the left hip moving pulley support 31LD and the right hip moving pulley support 31RD. As a result, the lower part of the gusset portion 11 of the belt-like band unit 10 is slightly distorted, narrowing the gap between the left support member 12L and the right support member 12R, and tightening the waist. In addition, the user pulls the right operating part 35R of the moving pulley part 30, and the right operating part 35R is engaged with the right attachment 16R of the belt-like band part 10 or the right attachment 21R of the auxiliary band part 20. At this time, the left abdominal cavity moving pulley support 31LU moves to the right, and the right abdominal cavity moving pulley support 31RU moves to the left, narrowing the gap between the left abdominal cavity moving pulley support 31LU and the right abdominal cavity moving pulley support 31RU. As a result, the upper part of the gusset part 11 of the belt-like band part 10 is slightly distorted, narrowing the gap between the left support 12L and the right support 12R, and tightening the abdominal cavity.

[0040] The scope of application of the present invention is not limited to the above-described embodiment and examples, and can be widely applied to lumbar supports in line with the spirit of the present invention. [Explanation of symbols]

[0041] 1 Lumbar support 10 Belt section 11 Gusset 12 Support 13 Mesh belt 14 Reinforcement strip 15 Sewing frame 16 Attachment 17 Backrest attachment frame 20 Auxiliary band section 21 Attachment 22 Sewing frame 23 Auxiliary Band 24 Working Band 25 Ring 26 Fixing band 30 Moving pulley section 31 Moving pulley support 32 Wire 33 Pulley 34 Wire Guide 35 Control section 36 Wire Clamp 40 Backrest 41 Mesh material 42 Sewn edge 43 Attachment frame 51 Plate 52 Slit

Claims

1. A waist supporter to be worn around the waist, A first tightening and adjusting means for tightening the abdominal cavity and the lumbar region with a belt-like band portion; A second tightening and adjusting means for tightening the abdominal cavity and the lumbar region by the auxiliary band portion; and a third tightening and adjusting means for tightening the abdominal cavity and the lumbar region by means of a movable pulley portion, The auxiliary band portion and the movable pulley portion are fixed to the belt-shaped band portion, A waist supporter characterized in that the first tightening and adjusting means and the second tightening and adjusting means act in the same direction to tighten the abdominal cavity and waist, and the third tightening and adjusting means acts in the opposite direction.

2. The lumbar supporter according to claim 1, further comprising a back support portion, the back support portion having a structure that allows it to be freely attached to and detached from the belt-like band portion and a pocket structure into which a hard plate having a shape that fits the user's lumbar vertebrae can be inserted, the plate having a slit.

3. The waist supporter according to any one of claims 1 or 2, characterized in that the belt-like band portion is formed in a belt-like shape that is symmetrical from left to right and from top to bottom, has supports on the left and right of the center of the belt-like band portion, and has a gusset portion between the supports.

4. The lumbar supporter according to any one of claims 1 to 3, characterized in that the auxiliary band portion comprises four auxiliary bands arranged symmetrically on the left and right and top and bottom on the belt-like band portion, the four auxiliary bands being a left abdominal cavity auxiliary band for tightening the left side of the abdominal cavity, a right abdominal cavity auxiliary band for tightening the right side of the abdominal cavity, a left waist auxiliary band for tightening the left side of the waist, and a right waist auxiliary band for tightening the right side of the waist, the auxiliary bands having a fixed band having one end fixed to the belt-like band portion and the other end fixed to a ring, and an operating band having one end fixed to the belt-like band portion, inserted through the ring, and then the other end fixed to the auxiliary band portion.

5. The waist supporter according to any one of claims 1 to 4, characterized in that the moving pulley portion includes four moving pulleys arranged symmetrically on the left and right and up and down on the belt-shaped band portion, the four moving pulleys being a left abdominal moving pulley for tightening the left side of the abdominal portion, a right abdominal moving pulley for tightening the right side of the abdominal portion, a left lumbar moving pulley for tightening the left side of the lumbar portion, and a right lumbar moving pulley for tightening the right side, and the moving pulleys are composed of one or more pulleys.

6. 6. The lumbar support according to claim 1, wherein the four moving pulleys of the moving pulley section are connected by wires, and a wire fastener is provided at the center of the wires.

7. 7. The waist supporter according to claim 1, wherein the belt-like band portion and the auxiliary band portion are made of a material having no elasticity.

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