JP2011202333A - Garment with crotch part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a garment with a crotch part, easily usable and naturally assisting movement to adjust/correct bowlegs/bandy legs.SOLUTION: This garment with a crotch part, having so-called about sixth length covers the lower body at least from the waist 10A to the knee 10B without covering the 2/3 of the lower side of the lower leg 10C, and includes a body part 10 made of a stretchable cloth. The body part 10 includes on part a belt-like tightening part 12 with strong tightening force. The tightening part 12 has a first tightening part 121 extended from the pubic front 121A, toward an oblique downward part at the front side of the femoral region, corresponding to the adductor longus, to the femoral region outside 121B.

Description

  The present invention relates to a garment with a crotch that adjusts or corrects an O-leg or a crotch by approaching a muscle start and stop as much as possible.

  Elderly people with weak muscles, women with weak muscles, or people with weak muscles tend to have O-legs or crotch, which causes pain in the legs and joints when excessive force is applied to the joints. There is a case. Conventionally, as a method for adjusting or correcting the O leg or the crotch, a method of winding a taping tape around the thigh is known.

International Publication WO 2004/096105

  However, in the case of taping, there is a problem that it takes time to wind the tape, and there is a problem that it is difficult to wind by a person who does not have expertise. In addition, when the joint is fixed by taping, it is not necessary to move the joint, but if the joint is moved, there is a problem that an excessive force is applied and the joint is easily damaged. Further, in the case of taping, there is a problem that the internal rotation or the external rotation is fixed at the current position, it is difficult to fix at the normal position, and the joint is easily damaged.

  Patent Document 1 describes a garment with a crotch in which a support line portion having a strong tightening force is provided on a main body portion covering from the waist portion to the upper portion of the thigh portion. The position corresponding to the outer side of the front line in the direction is the lower end, the position corresponding to the outer side of the inner end of the groove is the upper end, passes through the part corresponding to the front line from the lower end, and spirally wound toward the upper end. It is. However, the support line part described in Patent Document 1 and the tightening part of the present invention are arranged at different positions. In addition, since the crotch garment described in Patent Document 1 covers only the upper part of the thigh, there is also a problem that the knee joint cannot be internally rotated.

  The present invention has been made based on such a problem, and can be easily used, and can naturally approach unstable muscles and can approach muscles. An object of the present invention is to provide a garment with a crotch for adjusting and correcting the crotch.

  The first garment with a crotch according to the present invention adjusts / corrects O-legs / groins that cover at least the lower body from the waist to the upper half of the thigh and do not cover the lower 2/3 of the lower leg. It is made of an elastic fabric and has a body part with a band-like tightening part with a strong tightening force, and the tightening part is obliquely downward on the front of the thigh corresponding to the long adductor muscle from the front of the pubic bone And a first tightening portion extended to the outside of the thigh.

  According to the garment with a crotch of the present invention, since it has the first tightening portion extended from the front surface of the pubic bone toward the outer side of the thigh toward the lower side of the thigh, corresponding to the long adductor muscle, By the tightening force of the first tightening portion, it is possible to assist inversion and bending of the hip joint, and when the leg is raised, the hip joint can be naturally turned inward and the leg can be landed in this state. Therefore, it is possible to easily adjust and correct the O-leg and the crotch just by wearing it.

  Further, according to the garment with a crotch, since the lower side 2/3 of the lower leg is not covered, an external force is not applied to the lower leg and a natural state can be obtained. Therefore, when moving the hip joint or knee joint, by approaching the weakened muscle at the tightening portion, it is possible to suppress the return to the normal original position and the application of an unreasonable force stably. Therefore, it is possible to adjust and correct the O-leg and the crotch while moving the leg.

  Further, if the first tightening portion is curved in a convex shape toward the inside inward, or the center line of the first tightening portion is an intermediate position between the crotch height and the center position of the patella. In height, it passes through the first region in the range of 1/4 or more and 3/4 or less from the front center line to the medial center line, and in the front center line, the height of the center position of the patella from the height of the intermediate position. If it is made to pass through the 2nd field in the range of 1/4 or more and 3/4 or less toward it, a higher effect can be acquired.

  In addition, from the vicinity of the sciatic nodule or the vicinity of the sciatic nodule, the posterior side of the thigh is directed downward corresponding to the semi-tendonoid muscle or the semi-membranous muscle, and the tibial medial section, the tibial rough surface, or the tibial medial section and the tibial rough If the second tightening portion extended to the area between the surface and the second tightening portion is provided, the tightening force of the second tightening portion assists the internal rotation of the lower leg and the knee joint when the knee is flexed, When the arm is raised, the knee joint and the lower leg can be naturally rotated, and the leg can be landed in that state. Therefore, it is possible to adjust and correct the O-leg / groin more effectively.

  Furthermore, the lower part of the intertrochanteric ridge or the vicinity of the intertrochanteric ridge is inclined obliquely downward on the back side of the thigh and extends to the inner tibia section, the tibial rough surface, or the region between the tibial inner section and the tibial rough surface. If the third tightening portion is provided, when the leg is lifted by the tightening force of the third tightening portion, the pelvis is pulled backward using the upper end of the femur as a fulcrum, and the pelvis is tilted forward. It can prevent back pain. In addition, the internal rotation and adduction of the hip joint can be adjusted and corrected to normal positions. Therefore, it is possible to adjust and correct the O-leg / groin more effectively.

  In addition, a fourth tightening portion that extends under the sciatic tubercle or the sciatic tubercle in the posterior groin region, extends from the posterior side to the anterior side, between the upper anterior iliac bone and the hip joint, and extends to the front side of the abdomen. If it has it, the effect of a fastening part can be heightened by sticking and fixing a main-body part to a collar part. Therefore, it is possible to adjust and correct the O-leg / groin more effectively.

  Furthermore, if the leg tightening portion for tightening the leg is provided at the lower end portion of the main body portion, the effect of the tightening portion can be enhanced by fixing the lower end portion of the main body portion to the leg. Therefore, it is possible to adjust and correct the O-leg / groin more effectively.

It is a figure showing the structure which looked at the clothing with a crotch which concerns on the 1st Embodiment of this invention from the front. It is a figure for demonstrating the structure along the III line shown in FIG. It is a figure showing the structure which looked at the clothing with a crotch shown in FIG. 1 from back. It is a figure showing the structure which looked at the clothing with a crotch shown in FIG. 1 from the side. It is a figure showing the structure of the inner crotch of the clothing with a crotch shown in FIG. It is a figure which shows the state of O leg or a crotch. It is a figure showing the state which wore the clothing with a crotch shown in FIG. It is another figure showing the state which wore the clothing with a crotch shown in FIG. FIG. 6 is still another view showing a state in which the crotch garment shown in FIG. 1 is worn. It is a figure showing the structure which looked at the clothing with a crotch which concerns on the 2nd Embodiment of this invention from the front.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(First embodiment)
FIG. 1 illustrates a configuration of a crotch garment according to a first embodiment of the present invention as viewed from the front, and FIG. 2 illustrates a configuration along line III shown in FIG. 3 shows a configuration viewed from the rear, FIG. 4 shows a configuration viewed from the side, and FIG. 5 shows a configuration of the inner crotch. Note that in FIGS. 1 to 5, the corresponding human skeleton is shown by a broken line.

  This crotch garment covers at least the lower body from the waist 10A to the knee 10B and does not cover the lower 2/3 of the lower leg 10C. 10 is provided. In this garment with crotch, the lower side 2/3 of the lower leg 10C is not covered, so that an external force is not applied to the lower leg 10C and a natural state is obtained, and an unreasonable force is caused when the hip joint 10D or the knee joint 10E is moved. It is possible to suppress the addition. The garment with crotch may be anything such as trousers, spats, stockings, supporters, girdles, or inners as long as it has a crotch, regardless of the name.

  The main body 10 includes a crotch-covered portion 11 that covers at least the lower body from the waist 10A to the knee 10B, and a belt-like tightening portion 12 that is provided in a part of the main body 10 and has a strong tightening force. Yes. It is preferable that the covering portion 11 is not strongly tightened, and it is preferable that the covering portion 11 is made of a fabric having stretchability along the body. This is to keep the body in a natural state and prevent excessive force from being applied when moving the body. The tightening portion 12 is made of, for example, a cloth, a power net or the like having a tightening force stronger than that of the covering portion 11, and is arranged by sewing or bonding to the covering portion 11. The width of the tightening portion 12 is, for example, about 3 cm to 8 cm and may be the same throughout, but may be different depending on the location.

  The tightening portion 12 has a first tightening portion 121 extending from the front surface of the pubic bone 121A to the thigh outer side 121B diagonally downward on the front side of the thigh corresponding to the long adductor muscle. This is to assist the adduction and bending of the hip joint 10D and to naturally add the hip joint 10D when the leg is raised. The long adductor muscle is a muscle that functions as a function of assisting hip adduction and hip flexion, with the start as the front surface of the pubic bone 121A and the stop as the middle half of the inner lip of the rough femur. The thigh outer side 121B refers to the outer side (side) of the front center line 121C in the vertical direction of the thigh, and the front center line 121C refers to, for example, the center of the hip joint 10D and the patella 10F when viewed from the front side. Is a line along the front side of the thigh that passes through the center of the thigh. The lower end portion of the first tightening portion 121 may be extended to a position beyond the front center line 121C of the thigh, but it is preferable that the lower end portion is extended to the side. This is because the force that inverts the hip joint 10D can be exerted more strongly. Moreover, it is preferable that the 1st fastening part 121 is curving convexly toward the inner side downward. This is because the force that inverts the hip joint 10D can be exerted more strongly.

  Further, for example, as shown in FIG. 2, the center line of the first tightening portion 121 is an anterior center line at a height III that is an intermediate position between the crotch height I and the center height II of the patella 10F. It is preferable that the first region 121E is within the range of 1/4 or more and 3/4 or less from the 121C toward the inner central line 121D, and preferably passes through the range of 1/3 or more and 2/3 or less. If it is comprised, it is more preferable. In addition, for example, as shown in FIG. 1, the center line of the first tightening portion 121 is located at an intermediate position between the crotch height I and the center position height II of the patella 10F on the front center line 121C. It is preferable that it is configured to pass from the height III to the height II of the center position of the patella 10F and pass through the second region 121F within the range of 1/4 or more and 3/4 or less, and 1/3 or more and 2/3. It is more preferable if it is configured to pass within the following range. This is because the force that inverts the hip joint 10D can be exerted more strongly. FIG. 2 is a simplified representation of a state where the thigh is cut in a circle at a height III at a middle position between the crotch height I and the center height II of the patella 10F, with the lower side being the front side. , Right is inside. The center line of the first tightening portion 121 is a line connecting the center positions of the first tightening portion 121 in the width direction. The medial center line 121D is a line extending in the vertical direction at the medial center of the thigh. For example, the medial center line 121D passes along the medial side of the thigh through the adductor nodule 121G of the medial epicondyle of the femur in an upright state. This is a line extending vertically.

  The tightening portion 12 is also directed downward from the vicinity of the sciatic nodule 122A or the sciatic nodule 122A toward the posterior side of the thigh corresponding to the semitendonous muscle or the meningiform muscle, and the tibial medial section 122B and the tibial rough surface 122C. Or a second tightening portion 122 extending to a region 122D between the tibial medial section 122B and the tibial rough surface 122C. This is because it supports the internal rotation of the lower leg at the time of half flexion of the knee and the internal rotation of the knee joint at the time of half flexion of the knee, and can naturally rotate the knee joint 10E and the lower leg 10C when the leg is raised. The semi-tendonoid muscle is a muscle that functions as a function of the internal rotation of the lower leg at the time of semi-flexion of the knee, starting from the depression inside the sciatic nodule 122A and stopping at the upper part 122E of the inner surface of the tibia. The semi-membranous muscle is a muscle that functions as the upper and outer surfaces of the sciatic nodule 122A and stops as the inner posterior surface of the tibial medial section 122B, and functions as a knee joint internal rotation at the time of knee flexion. The lower end portion of the second tightening portion 122 is preferably extended to the region 122D between the tibial medial section 122B and the tibial rough surface 122C rather than the tibial medial section 122B, and is extended to the tibial rough surface 122C. More preferable. This is because the force to internally rotate the knee joint 10E and the lower leg 10C can be exerted more strongly by winding the tibia to the front side.

  The tightening portion 12 is further inclined obliquely downward from the vicinity of the intertrochanteric ridge 123A or the intertrochanteric ridge 123A to the rear side of the thigh, and the tibial medial section 122B, the tibial rough surface 122C, or the tibial medial section 122B and the tibia It is preferable to have the third tightening portion 123 extended to the region 122D between the rough surface 122C. When the leg is raised, the upper end of the femur serves as a fulcrum and the pelvis is pulled backward, preventing back pain due to pelvic anterior tilt and adjusting the internal rotation and adduction of the hip joint 10D to normal positions. This is because it can be corrected. It is preferable that the upper end portion of the third tightening portion 123 is at or below the intertrochanter ridge 123A and does not extend to the greater trochanter 123B. This is because if the arm extends to the greater trochanter 123B, the pulling strength becomes too strong, and the femur may be abducted. The lower end portion of the third tightening portion 123 is preferably extended to the region 122D between the tibial medial section 122B and the tibial rough surface 122C rather than the tibial medial section 122B, and is extended to the tibial rough surface 122C. More preferable. This is because the force for adjusting and correcting the internal rotation and adduction of the hip joint 10D can be exerted more strongly. Note that the lower end portion of the third tightening portion 123 may overlap the lower end portion of the second tightening portion 122 or may be shifted.

  In addition, the tightening portion 12 passes under the sciatic nodule 122A or the vicinity of the sciatic nodule 122A in the posterior lateral buttock, passes between the upper anterior iliac 124A and the hip joint 10D from the posterior side to the anterior side, and passes the front side 124B of the abdomen. It is preferable to have the fourth tightening portion 124 extended to the end. This is because the effects of the first tightening portion 121, the second tightening portion 122, and the third tightening portion 123 can be enhanced by fixing the main body portion 10 in close contact with the collar portion. Note that the fourth tightening portion 124 may overlap the upper end portion of the second tightening portion 122 or the upper end portion of the third tightening portion 123.

  It is preferable that a leg tightening portion 21 to be tightened to the leg under the knee 10B is provided at the lower end portion of the main body portion 10. This is because the effect of the first tightening portion 121, the second tightening portion 122, and the third tightening portion 123 can be enhanced by fixing the lower end portion of the main body portion 10 to the leg. The leg tightening portion 21 may be constituted by, for example, an elastic member such as rubber, or may be tightened according to the body with a planar fastener or the like. A waist tightening portion 22 made of an elastic member such as rubber for tightening and fixing to the waist 10A may be provided at the upper end portion of the main body portion 10, for example.

  6 to 9 are for explaining the function of the garment with the crotch. FIG. 6 shows the state of the O-leg or the crotch, and FIG. 7 shows the crotch with the first tightening portion 121 provided. FIG. 8 shows a state in which a garment with crotch provided with a first tightening portion 121 and a second tightening portion 122 is worn, and FIG. 9 further shows a third tightening portion 123. This represents a state in which the provided crotch clothing is worn. 6 to 9, (A) represents an upright state, and (B) and (C) represent a walking state. 7A to 9A also show the positions of the tightening portions 12 together.

  As shown in FIG. 6, in the case of the O-leg or groin, the hip joint 10 </ b> D is abducted, the lower leg 10 </ b> C and the knee joint 10 </ b> E are externally rotated, the crotch is open, and the knee 10 </ b> B is facing outward. It has become. On the other hand, when wearing a crotch garment provided with the first tightening portion 121, as shown in FIG. 7, for example, as shown in FIG. The flexion is assisted, and when the leg is raised, the hip joint 10D is naturally added, and the leg lands in that state. Thus, the crotch is closed.

  Further, when wearing a crotch garment provided with a second tightening portion 122 in addition to the first tightening portion 121, for example, as shown in FIG. 8, due to the tightening force of the second tightening portion 122, The internal rotation of the lower leg and the internal joint of the knee joint is assisted when the knee is flexed, and when the leg is raised, the knee joint 10E and the lower leg 10C naturally rotate, and the leg lands in this state. Therefore, the knee 10 </ b> B is facing forward.

  Furthermore, when a garment with a crotch provided with a third tightening portion 123 in addition to the first tightening portion 121 and the second tightening portion 122 is worn, for example, as shown in FIG. When the leg is raised by the tightening force of the portion 123, the upper end of the femur serves as a fulcrum and the pelvis is pulled backward, and the internal rotation and adduction of the hip joint 10D are adjusted and corrected to normal positions.

  Thus, according to the garment with a crotch according to the present embodiment, the first stretched from the front surface 121A of the pubic bone to the front side of the thigh diagonally downward corresponding to the long adductor muscle to the outer thigh 121B. Since the tightening portion 121 is provided, the tightening force of the first tightening portion 121 assists the adduction and flexion of the hip joint 10D, and when the leg is raised, the hip joint 10D is naturally inverted, and the leg is in that state. Can be landed. Therefore, it is possible to easily adjust and correct the O-leg and the crotch just by wearing it.

  Further, according to this garment with a crotch, at least the lower body from the waist 10A to the knee 10B is covered, and the lower side 2/3 of the lower leg 10C is not covered. State. Therefore, when the hip joint 10D or the knee joint 10E is moved, by approaching the weakened muscle at the tightening portion 12, it is possible to suppress the return to the normal original position and the stable application of excessive force. it can. Therefore, it is possible to adjust and correct the O-leg and the crotch while moving the leg.

  Furthermore, if the first tightening portion 121 is curved in a convex shape toward the inside and downward, or the center line of the first tightening portion 121 is a height between the crotch height I and the center position of the patella 10F. At the height III of the intermediate position with the length II, it passes through the first region 121E in the range of 1/4 or more and 3/4 or less from the front center line 121C toward the inner center line 121D, and in the front center line 121C, A higher effect can be obtained by passing through the second region 121F within the range of 1/4 or more and 3/4 or less from the height III of the intermediate position toward the height II of the center position of the patella 10F.

  In addition, from the lower part of the sciatic nodule 122A or the lower part of the sciatic nodule 122A toward the posterior side of the thigh corresponding to the semi-tendonoid muscle or the semi-membranous muscle, the tibial medial section 122B, the tibial rough surface 122C, or the tibial medial If the second tightening portion 122 extended to the region 122D between the section 122B and the tibial rough surface 122C is provided, the tightening force of the second tightening portion 122 causes the internal rotation of the lower leg and the knee to bend flexibly. The knee joint internal rotation is assisted, and when the leg is raised, the knee joint 10E and the lower leg 10C can be naturally rotated, and the leg can be landed in this state. Therefore, it is possible to adjust and correct the O-leg / groin more effectively.

  Furthermore, from the lower part of the intertrochanteric ridge 123A or the vicinity of the intertrochanteric ridge 123A, the rear side of the thigh is directed obliquely downward, and the tibial medial section 122B, the tibial rough surface 122C, or the tibial medial section 122B and the tibial rough surface 122C If the third tightening portion 123 is extended to the region 122D between the upper and lower limbs, the upper end of the femur becomes a fulcrum when the leg is lifted by the tightening force of the third tightening portion 123. It can be pulled backwards to prevent back pain due to pelvic anteversion. In addition, the internal rotation and adduction of the hip joint 10D can be adjusted and corrected to normal positions. Therefore, it is possible to adjust and correct the O-leg / groin more effectively.

  In addition, the sciatic nodule 122A or the sciatic nodule 122A was passed through the vicinity of the sciatic nodule 122A in the posterior groin, and extended from the posterior side to the anterior side between the superior anterior iliac 124A and the hip joint 10D to the abdomen front side 124B. If the fourth tightening portion 124 is provided, the effect of the tightening portion 12 can be enhanced by fixing the main body portion 10 in close contact with the collar portion. Therefore, it is possible to adjust and correct the O-leg / groin more effectively.

  Furthermore, if the leg tightening portion 21 to be fastened to the leg is provided at the lower end portion of the main body portion 10, the effect of the tightening portion 12 is enhanced by fixing the lower end portion of the main body portion 10 in close contact with the leg. Can do. Therefore, it is possible to adjust and correct the O-leg / groin more effectively.

(Second Embodiment)
FIG. 10 shows the configuration of a crotch garment according to the second embodiment of the present invention. This crotch garment has the same configuration as that of the first embodiment, except that the length of the garment and the configuration of the tightening portion 12 are different from those of the first embodiment. Therefore, the same code | symbol is attached | subjected to the component corresponding to 1st Embodiment, and the detailed description about the same part is abbreviate | omitted.

  The garment with a crotch includes a first tightening portion 121 as the tightening portion 12 and does not include the second tightening portion 122 and the third tightening portion 123. The fourth tightening portion 124 may or may not be provided. As described above, when the second tightening portion 122 and the third tightening portion 123 are not provided, the length of at least the lower body from the waist 10A to the upper half of the thigh is covered, and from the knee 10B It is good also as a so-called three-quarter to five-minute length that does not cover the bottom. The covering part 11 is configured to cover at least the lower body from the waist 10A to the upper half of the thigh, and the leg tightening part 21 is configured to tighten the leg above the knee 10B. According to the garment with a crotch, as in the first embodiment, the first leg tightening portion 121 can easily adjust and correct the O-leg and the crotch, and the natural state of the lower part from the knee 10B Therefore, when the hip joint 10D or the knee joint 10E is moved, it can be returned to a normal original position, and an excessive force can be suppressed.

  The present invention has been described with reference to the embodiment. However, the present invention is not limited to the above embodiment, and various modifications can be made. For example, in the above-described embodiment, the case of having the first tightening portion 121, the second tightening portion 122, the third tightening portion 123, and the fourth tightening portion 124 has been described. Alternatively, other tightening portions may be provided. Moreover, although the said embodiment demonstrated the case where the leg fastening part 21 and also the waist fastening part 22 were provided in addition to the main-body part 10, it does not need to be provided.

  It can be applied to clothing with crotch that adjusts or corrects O-legs or groins.

  DESCRIPTION OF SYMBOLS 10 ... Main-body part, 10A ... Waist, 10B ... Knee, 10C ... Lower leg, 10D ... Hip joint, 10E ... Knee joint, 10F ... Patella, 11 ... Cover part, 12 ... Fastening part, 121 ... First fastening part, 121A ... The entire pubic bone, 121B ... outer thigh, 121C ... front center line, 121D ... inner center line, 121E ... first region, 121F ... second region, 121G ... adductor nodules, 122 ... second tightening portion, 122A Sciatic nodules 122B inner tibial section 122C tibial rough surface 122D area between tibial inner section and tibial rough surface 122E upper tibial inner surface 123 third tightening section 123A rolling Child ridge, 123B ... Greater trochanter, 124 ... Fourth tightening portion, 124A ... Upper anterior iliac bone, 124B ... Full abdomen side, 21 ... Leg tightening portion, 22 ... Waist tightening portion

Claims (7)

A garment with a crotch that adjusts and corrects O-legs and crotch that covers at least the lower body from the waist to the upper half of the thigh and does not cover the lower 2/3 of the lower leg,
Made of stretchable fabric, partly equipped with a body part with a belt-like tightening part with strong tightening force,
The tightening portion has a first tightening portion that extends from the front of the pubic bone toward the outer side of the thigh in an obliquely downward direction toward the front side of the thigh corresponding to the long adductor muscle.   The garment with a crotch according to claim 1, wherein the first tightening portion is curved in a convex shape toward an inner lower side.   The center line of the first tightening portion is in the range of 1/4 or more and 3/4 or less from the front center line toward the medial center line at the height between the crotch height and the center position of the patella. And passing through a second region within a range of ¼ or more and ¾ or less from the height of the intermediate position toward the height of the center of the patella in the anterior center line. The garment with a crotch according to claim 1 or 2. The tightening portion is further directed downward from the lower part of the thigh corresponding to the semi-tendonoid muscle or the semi-membranous muscle from the lower part of the sciatic tube or the sciatic tube, and the tibial medial section, tibial rough surface, or tibial medial The garment with a crotch according to any one of claims 1 to 3, further comprising a second tightening portion extended to a region between the section and the rough tibial surface. The tightening portion is further inclined obliquely downward from the trochanteric ridge or near the trochanteric ridge to the rear side of the thigh, and between the tibial medial section, the tibial rough surface, or the tibial medial section and the tibial rough surface. The garment with a crotch according to any one of claims 1 to 4, further comprising: a third tightening portion extended to the region. The tightening portion is further extended to the front side of the abdomen through the sciatic nodule or the vicinity of the sciatic nodule in the posterior lateral buttock, between the upper anterior iliac and the hip joint from the posterior side toward the anterior side. The garment with a crotch according to any one of claims 1 to 5, wherein the garment has a tightening portion.   The garment with a crotch according to any one of claims 1 to 6, wherein a leg tightening portion for tightening to a leg is provided at a lower end portion of the main body portion.

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