CN112243351A

CN112243351A - Swimming suit

Info

Publication number: CN112243351A
Application number: CN201980038052.9A
Authority: CN
Inventors: 田中启之; 白本爱; 吉井宏见; 大竹健司; 龟井美予子; 富村真司
Original assignee: Mizuno Corp
Current assignee: Mizuno Corp
Priority date: 2018-06-05
Filing date: 2019-05-30
Publication date: 2021-01-19
Anticipated expiration: 2039-05-30
Also published as: CN112243351B; TWI745701B; US20210227898A1; AU2019282986B2; JP2021098932A; EP3804549A1; AU2019282986A1; EP3804549A4; KR20210015862A; JPWO2019235360A1; TW202011849A; WO2019235360A1; SG11202012142UA; EP3804549B1; JP6849820B2; KR102657393B1

Abstract

The present invention relates to a swimsuit made of stretchable fabric and covering at least a thigh and a part of a hip when worn, wherein 2 or more band-shaped tightening parts are arranged so as to cross each other in a body length direction from each of right and left hips to a thigh, and an intersection of the 2 or more band-shaped tightening parts is located between a top of the hip and a near side 1/3 of a posterior femoral muscle group. Thus, a swimsuit is provided which can stabilize the underwater posture and support the exercise of the muscle group behind the thigh.

Description

Swimming suit

Technical Field

The invention relates to swimwear. More specifically, the present invention relates to a swimsuit that covers at least the hip and a part of the thigh of a wearer when worn.

Background

In swimming, particularly in swimming competitions, there is a demand for a swimsuit that reduces water resistance. As the resistance of water, there is shape resistance depending on the shape of the body, and the like. Patent document 1 describes a swimsuit in which a constriction portion is provided in a region covering a part of gluteus maximus and hamstrings (hamstrings), thereby suppressing shape resistance caused by lowering of the position of the waist and legs from the position of the upper body during swimming, and improving athletic performance. Patent document 2 proposes a swimsuit having improved performance for assisting in maintaining an appropriate posture by providing tension bands extending from the hip region to the hip region along the outer side of the thigh region and then extending from the hip region to the center line of the swimsuit inward through the upper hip region.

Documents of the prior art

Patent document

Patent document 1 Japanese patent laid-open No. 2014-91894

Patent document 2 Japanese patent application laid-open (JP-A) No. 2017-525864

Disclosure of Invention

Problems to be solved by the invention

However, in the case of the swimwear of patent documents 1 and 2, it is required to achieve both the stabilization of the underwater posture and the effect of supporting the exercise of the muscle group behind the thigh.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a swimsuit that can stabilize the posture in water and support the movement of the muscle group behind the thigh.

Means for solving the problems

The present invention relates to a swimsuit made of stretchable fabric and covering at least thighs and parts of buttocks when worn, wherein 2 or more strip-shaped tightening parts are arranged so as to cross each other in a body length direction from each of the left and right buttocks to the thighs, and an intersection of the 2 or more strip-shaped tightening parts is located between a top of the buttocks and a near side 1/3 of a posterior femoral muscle group.

In the swimsuit of the present invention, it is preferable that the tightening part is provided by attaching a tension band to a stretchable fabric constituting the swimsuit body and then attaching a band-shaped stretchable fabric having a width larger than a width of the tension band from above. The tension band and the band-shaped stretchable fabric are preferably located on the back side of the swimsuit. The intersections of the 2 or more strip-shaped tightening parts are preferably located in a region covering a part of the posterior femoral muscle group, and more preferably located in a region covering a part of the biceps femoris muscle and/or the semitendinosus muscle.

In the swimwear of the present invention, the stretchable fabric preferably has a tensile modulus of elasticity of 140 × 10 in the body length direction measured according to JIS L10968.14. a^-5N/mm²Above and 200 × 10^-5N/mm²The following. The tightening part preferably has a tensile modulus of elasticity in the body length direction of 160X 10 measured according to JIS L10968.14. A^-5N/mm²Above and 220 × 10^-5N/mm²The following. The tensile modulus in the body length direction of the intersection of the 2 or more strip-like tightening parts measured according to JIS L10968.14. A is preferably 220X 10^-5N/mm²Above and 420 × 10^-5N/mm²The following.

Effects of the invention

The present invention can provide a swimsuit that supports the movement of the posterior thigh muscle group while stabilizing the underwater posture.

Drawings

Fig. 1 is a schematic view of the back side (body surface side) of a swimsuit (male half-tights) according to an embodiment of the present invention, wherein (a) is a front view, (b) is a left side view, and (c) is a rear view.

Fig. 2 is a schematic view of the back side (body surface side) of a swimsuit (male half-tights) according to another embodiment of the present invention, wherein (a) is a front view, (b) is a left side view, and (c) is a rear view.

Fig. 3 is a schematic view of the back side (body surface side) of a swimsuit (male half-tights) according to another embodiment of the present invention, wherein (a) is a front view, (b) is a left side view, and (c) is a rear view.

Fig. 4 is a schematic view of the back side (body surface side) of a swimsuit (male half-tights) according to another embodiment of the present invention, wherein (a) is a front view, (b) is a left side view, and (c) is a rear view.

Fig. 5 is a schematic view of the inner side (body surface side) of a swimsuit (female half-tights) according to another embodiment of the present invention, wherein (a) is a front view, (b) is a left side view, and (c) is a rear view.

Fig. 6 is a schematic view of the inner side (body surface side) of a swimsuit (female half-tights) according to another embodiment of the present invention, wherein (a) is a front view, (b) is a left side view, and (c) is a rear view.

Fig. 7 is a schematic view of the inner side (body surface side) of a swimsuit (female half-tights) according to another embodiment of the present invention, wherein (a) is a front view, (b) is a left side view, and (c) is a rear view.

Fig. 8 is a schematic view of the inner side (body surface side) of a swimsuit (female half-tights) according to another embodiment of the present invention, wherein (a) is a front view, (b) is a left side view, and (c) is a rear view.

Fig. 9 is a schematic diagram showing the stretching of the skin from the knees to the waist of the back of the lower body during swimming, in which (a) is free swimming, (b) is butterfly swimming, (c) is backstroke swimming, and (d) is breaststroke.

Fig. 10 is a partial schematic view from the knees to the waist of the back of the lower body, and shows the positions of intersections of 2 or more belt-like tightening parts.

Fig. 11 is a schematic view of the back side (body surface side) of the swimsuit (male half-tights) of comparative example 1, in which (a) is a front view, (b) is a left side view, and (c) is a rear view.

Fig. 12 is a schematic view of the inner side (body surface side) of the swimsuit (female half-tights) of comparative example 2, in which (a) is a front view, (b) is a left side view, and (c) is a rear view.

Detailed Description

The present inventors have conducted intensive studies in order to achieve both the stabilization of the underwater posture by swimwear and the effect of supporting the exercise of the muscle group behind the thigh. First, the stretching of the skin of the back of the lower body during free-swimming, butterfly-swimming, backstroke-swimming, and breaststroke was analyzed by the method described in japanese patent No. 3831348. The results are shown in FIG. 9. (a) Showing the case of freestyle, (b) showing the case of butterfly, (c) showing the case of backstroke, and (d) showing the case of breaststroke. In fig. 9, 200 indicates the degree of skin stretching, and the more from I to II, the higher the degree of skin stretching. As can be seen from fig. 9, the skin stretching from the top of the hip to the area of the proximal side 1/3 of the retrofemoral muscle group was large during various swimming. In the swimsuit of the present invention, the belt-like tightening portions 2 or more are arranged so as to intersect each other along the body length direction (also referred to as the body length direction) from the left and right buttocks to the thighs, and the intersections of the belt-like tightening portions 2 or more (hereinafter simply referred to as "intersections") are arranged so as to be located in the region from the top of the buttocks to the near side 1/3 of the posterior femoral muscle group where the skin stretches greatly during swimming, as shown in fig. 10, whereby the movement of the posterior femoral muscle group can be supported while stabilizing the posture in water. For example, the burden on the muscles of the extensor femoris group including the gluteus maximus, the gluteus medius, the gluteus minimus and the retrofemoral muscle group and the internal rotator muscle group of the femoral joint including the semitendinosus, the semimembraneus, the gluteus medius (lateral), the gluteus minimus (lateral) and the tensor fasciae latae during swimming can be reduced. The group of the posterior femoral muscles is a general term for biceps femoris, semimembranosus, and semitendinosus located at the back of the thigh (back of the lower limb). In the present specification, the "proximal side 1/3 of the posterior femoral muscle group" refers to a portion having a distance of 100%/3 from the proximal end, where the length in the length direction from the proximal end to the distal end of the posterior femoral muscle group is 100%. The term "top of the buttocks" refers to a portion located at a distance of 100%/2 from the lower end of the gluteus maximus, assuming that the length in the length direction from the upper end to the lower end of the gluteus maximus is 100%.

In the present invention, the "stretchable fabric" means a fabric having an elongation in the body length direction exceeding 0%. In the present invention, the elongation of the fabric is measured in accordance with JIS L10968.14.1A method (load: 17.6N, stretching speed: 200 mm/min).

The tightening part has a higher tightening force, i.e., a higher tensile elastic modulus in the body length direction, than the other parts. In the swimsuit of the present invention, the tightening part has a higher tensile elastic modulus than the stretchable fabric constituting the main body of the swimsuit, and the intersection point of the tightening part has the highest tensile elastic modulus. In the present invention, the tensile modulus of elasticity was determined based on the JIS L10968.14. A method, specifically, by fixing the fabric piece to a tensile testing machine so that the width of the fabric piece was 5cm and the length of the fabric piece was 10cm, and determining the tensile modulus of elasticity (N/mm) from the gradient of the stress at 5% elongation²). The length of the cloth piece refers to a dimension in a direction coincident with the measurement direction. For example, in the case of measuring the tensile elastic modulus in the body length direction, the length of the cloth piece refers to the dimension of the cloth piece in the body length direction, and in the case of measuring the tensile elastic modulus in the body width direction, the length of the cloth piece refers to the dimension of the cloth piece in the body width direction.

The stretchable fabric is not particularly limited, but the tensile elastic modulus in the body length direction is preferably 140 × 10^-5N/mm²Above and 200 × 10^-5N/mm²Hereinafter, more preferably 150 × 10^-5N/mm²Above and 190 × 10^-5N/mm²Hereinafter, 160 × 10 is more preferable^-5N/mm²Above and 180X 10^-5N/mm²The following. When the modulus of elasticity in tension of the stretch fabric is within the above range, the wearing properties of the swimwear are good, and the fit is improved.

The stretch fabric is not particularly limited, and a stretch fabric used for general swimwear can be used. Such as a unidirectional or bidirectional fabric or braid, preferably comprising elastic yarns. The elastic yarn is preferably at least one selected from a polyurethane elastic yarn and a polyester elastic yarn. This is because the stretch ability is high, and the fabric is suitable for sportswear. The elastic yarn may be used as a bare yarn (bare yarn), together with a non-elastic yarn (rigid yarn), or may be used as a covered yarn (covered yarn) covered with a polyester fiber or a nylon fiber on the surface. In addition, the stretchable fabric may be a double-layered fabric.

The weight per unit area of the stretchable fabric is preferably 50g/m²Above and 400g/m²The following range is more preferable, and 80g/m is still more preferable²Above and 300g/m²The following range is more preferably 100g/m²Above and 200g/m²The following ranges. Within this range, the appearance is good without causing problems such as perspective, and the wearing property is excellent without giving a sense of weight.

The tightening part preferably has a tensile modulus of elasticity of 160X 10 in the longitudinal direction^-5N/mm²Above and 220 × 10^-5N/mm²The following. More preferably 165X 10^-5N/mm²Above and 200 × 10^-5N/mm²Hereinafter, more preferably 170 × 10^-5N/mm²Above and 190 × 10^-5N/mm²The following. The tensile modulus of elasticity in the body length direction at the intersection of the tightening parts is preferably 220X 10^-5N/mm²Above and 420 × 10^-5N/mm²The following. More preferably 240X 10^-5N/mm²Above and 400 × 10^-5N/mm²Hereinafter, more preferably 260 × 10^-5N/mm²Above and 380 × 10^-5N/mm²The following. If the tensile elastic modulus in the body length direction of the tightening part and the intersection thereof is within the above range, the swimwear is easy to wear, and the effect of supporting the movement of the muscle group behind the thigh, for example, kicking the leg (kick) or the like, is improved. The tensile modulus of elasticity in the body length direction of the tightening part was measured as a measurement sample by cutting out a cloth piece (width 5cm, length 15cm) including 1 band-shaped tightening part from a part of the swimsuit where the tightening part is arranged, except for the intersection point. For example, in fig. 1, a piece of cloth indicated by 300 is cut out for measurement of the tensile elastic modulus of the tightening part. In the swimwear, the tensile modulus in the body length direction at the intersection of the tightening parts was measured as a measurement sample by cutting out a cloth piece (width 5cm, length 15cm) including the intersection of the tightening parts from a portion where the intersection of the tightening parts is arranged. For example, in FIG. 1, the cut-outs are shown by Table 400The shown portion of the cloth piece is used for the measurement of the tensile elastic modulus at the intersection of the tightening parts.

The tightening part is arranged in a band shape along the body length direction from the left and right buttocks to the thigh. The tightening part is not particularly limited as long as 2 or more, for example, 2, 3, or 4, etc. are arranged along the body length direction from the left and right buttocks to the thigh so that the intersection points are located in the region from the top of the buttocks to the proximal side 1/3 of the posterior femoral muscle group. From the viewpoint of wearing comfort, the tightening part is preferably arranged in 2 pieces from the left and right buttocks to the thighs. When 2 pieces of the tightening part are arranged from the left and right buttocks to the thigh, the tightening part is substantially in an X shape from the left and right buttocks to the thigh.

The tightening part may also extend to the waist. The posture in water can be stabilized more effectively. The tightening part may also extend to the lower end of the swimsuit. The posture in water can be stabilized more effectively. From the viewpoint of more effectively stabilizing the underwater posture, at least 1 of the tightening parts is preferably arranged so as to pass through the periphery of the sacrum. From the viewpoint of more effectively stabilizing the posture in water and supporting the movement of the posterior femoral muscle group, the intersection of the tightening parts is preferably located in a region covering a part of the posterior femoral muscle group, and more preferably located in a region covering a part of the biceps femoris muscle and/or semitendinosus muscle.

The tightening part is not particularly limited, and may be provided, for example, as follows: after a tension band (also referred to as a tension band) is attached to a stretchable fabric constituting a swimsuit main body so that the longitudinal direction of the tension band extends in the body length direction, a band-shaped stretchable fabric having a width larger than the width of the tension band is attached so as to cover the tension band from above and so that the longitudinal direction of the band-shaped stretchable fabric extends in the body length direction. From the viewpoint of reducing the shape resistance, the tension band and the band-shaped stretchable fabric are preferably located on the back side (body surface side) of the swimsuit. By attaching a band-shaped stretchable fabric to the tension band, the durability of the tightening part can be improved, and the tension band can be prevented from falling off from the swimsuit body. The tension band and the band-shaped stretchable fabric are preferably 5mm or more and 30mm or less in width, and more preferably 10mm or more and 20mm or less in width, from the viewpoint of reducing surface friction, for example. The tension band and the band-shaped stretchable fabric are preferably bonded to each other by a hot-melt adhesive. The hot melt adhesive is not particularly limited, and examples thereof include a sheet type, a nonwoven fabric type, and a liquid type.

The tension band is not particularly limited, and any of a woven fabric and a knitted fabric may be used. For example, various tension bands commercially available can be appropriately selected and used. The tension band is not particularly limited, but the tensile elastic modulus in the body length direction of the tightening part can be easily set to 160 × 10^-5N/mm²Above and 220 × 10^-5N/mm²From the viewpoint of the following, the tensile elastic modulus in the body length direction (coinciding with the longitudinal direction of the tension band) is preferably 5 × 10^-5N/mm²Above and 30 × 10^-5N/mm²Hereinafter, more preferably 10 × 10^-5N/mm²Above and 20 × 10^-5N/mm²The following.

The stretch fabric constituting the swimsuit body is not particularly limited, but for example, from the viewpoint of wearability and fit, the elongation in the body length direction is preferably 15% or more and 75% or less, more preferably 20% or more and 65% or less, and further preferably 25% or more and 55% or less. The stretchable fabric constituting the swimsuit body is not particularly limited, but for example, from the viewpoint of wearability and fit, the elongation in the body width direction (also referred to as the circumferential direction) is preferably 30% to 75%, more preferably 35% to 65%. The band-shaped stretchable fabric is not particularly limited, but for example, from the viewpoint of wearability and tightening force, the elongation in the body length direction is preferably 30% or more and 80% or less, more preferably 35% or more and 75% or less, and further preferably 40% or more and 70% or less. The band-shaped stretchable fabric is not particularly limited, but the elongation in the width direction is preferably 20% to 65%, more preferably 25% to 60%, from the viewpoint of wearability and tightening force, for example.

The type of the swimsuit of the present invention is not particularly limited as long as it covers at least the thighs and a part of the buttocks when worn. The underwear can be any one of semi-tight trousers, long-style tight trousers (tight trousers), short john jumpsuit, long john jumpsuit and full body jumpsuit.

Swimwear is generally worn in a state of being almost in close contact with the surface of the wearer's body. In order to form the "almost close-fitting" state, the swimsuit is formed such that the circumferential direction is 50% or more and 110% or less, more preferably 70% or more and 95% or less, and the length is 75% or more and 100% or less, more preferably 85% or more and 100% or less, with respect to the size of the naked human body. Of course there are individual differences in the size of the human body, so the ratio is the standard. More specifically, the size is determined in accordance with the JASPO standard.

Hereinafter, the description will be given with reference to the drawings. Fig. 1 is a schematic view of the back side (body surface side) of the swimsuit according to the embodiment of the present invention, wherein (a) is a front view, (b) is a left side view, and (c) is a rear view. The swimsuit 1 is a half-tight trousers type swimsuit for men. As shown in fig. 1 c, 2 band-

like tightening parts

2 and 3 are arranged so as to cross each other along the body length direction from the respective left and right buttocks to the thighs (hereinafter, referred to as a lower back and upper knee tightening part), and an intersection 4 of the tightening

parts

2 and 3 is located between the top of the buttocks and a near side 1/3 of the posterior femoral muscle group. The tightening part 2 is disposed so as to extend from the waist, specifically, the upper end of the swimsuit 1 to the inner side of the thigh part, and to the lower end of the swimsuit 1. The tightening part 3 is disposed so as to reach from the waist, specifically, the upper end of the swimsuit 1 to the inner side of the thigh. From the viewpoint of more effectively supporting the movement of the posterior femoral muscle group, the intersection 4 is preferably located in a region covering a part of the posterior femoral muscle group, more preferably a region covering a part of the biceps femoris muscle and/or the semitendinosus muscle.

The tightening

parts

2 and 3 are provided as follows: after a tension band (not shown) is attached to the cloth 102 constituting the main body of the swimsuit 1 with a hot melt adhesive so that the longitudinal direction of the tension band extends along the body length direction, a band-shaped stretchable cloth 103 is attached with a hot melt adhesive so that the band-shaped stretchable cloth 103 covers the tension band from above and so that the longitudinal direction of the band-shaped stretchable cloth 103 having a width larger than the width of the tension band extends along the body length direction. The fabric 102 constituting the back portion of the main body of the swimsuit 1 and the fabric 101 constituting the front portion of the main body of the swimsuit 1 are fabrics having different elongations in the body length direction, and from the viewpoint of wearability and smooth knee movement, the elongation in the body length direction of the fabric 101 is preferably higher than the elongation in the body length direction of the fabric 102. From the viewpoint of stably maintaining the postures of the buttocks and the hamstring during swimming, the fabric 102 is preferably a double-layer fabric in which two kinds of fabrics are bonded together with a hot-melt adhesive.

From the viewpoint of stably maintaining the posture around the pelvis, the swimsuit 1 may be configured such that the region covering the inguinal portion is made of the cloth 102 having a low elongation in the body length direction, and the tightening portion 5 (hereinafter, referred to as a inguinal portion tightening portion) arranged in an inverted ハ shape is provided in the region covering the peripheral edge portion of the inguinal portion. In addition, the swimsuit 1 may have the string 6 disposed at the upper end portion, from the viewpoint of preventing the deviation of the swimsuit at the waist. The groin tightening part 5 can be provided as follows: after a tension band (not shown) is attached to the cloth 102 constituting the main body of the swimsuit with a hot melt adhesive so that the longitudinal direction of the tension band extends along the body length direction, a band-shaped stretchable cloth 103 is attached with a hot melt adhesive from above so as to cover the tension band and so that the longitudinal direction of the band-shaped stretchable cloth 103 having a width larger than the width of the tension band extends along the body length direction.

In this embodiment, the lower back and the upper knee girth portions are 2 pieces each on the left and right, but may be 3 pieces or more, 4 pieces or more, and the like. From the viewpoint of wearability, the total number of seams including the number of the lower half back lap-tightening portions, the sewing thread, the adhesive thread to which the cloth is attached, and the like is preferably 9 or less in the circumferential direction of the buttocks. In addition, from the viewpoint of wearability, the total number of seams including the number of the lower body back and the lap girdles, the sewing thread, the cloth-attached adhesive thread, and the like is preferably 4 or less in each circumferential direction from the crotch portion to the upper knee portions of the left and right thighs.

Fig. 2 is a schematic view of the back side (body surface side) of the swimsuit according to another embodiment of the present invention, wherein (a) is a front view, (b) is a left side view, and (c) is a rear view. The swimsuit 11 is a half-tight trousers type swimsuit for men. As shown in fig. 2(c), in the swimsuit 11 of this embodiment, 2 band-

like tightening parts

12 and 13 are disposed so as to cross each other along the body length direction from the left and right buttocks to the thighs, respectively, and the intersection 14 of the tightening

parts

12 and 13 is located between the top of the buttocks and the near side 1/3 of the posterior femoral muscle group. The tightening part 12 is disposed so as to reach the outer side of the thigh from the waist, specifically, the upper end of the swimsuit 11. The tightening part 13 is disposed from the waist, specifically, the upper end of the swimsuit 11 to the inner side of the thigh. The swimsuit 11 may have the same configuration as the swimsuit shown in fig. 1, except for the arrangement of the tightening

parts

12 and 13 and the intersection 14 of the tightening

parts

12 and 13.

Fig. 3 is a schematic view of the back side (body surface side) of the swimsuit according to another embodiment of the present invention, wherein (a) is a front view, (b) is a left side view, and (c) is a rear view. The swimsuit 21 is a semi-tight trousers type swimsuit for men. As shown in fig. 3(c), in the swimsuit 21 of this embodiment, 2 band-

like tightening parts

22 and 23 are disposed so as to cross each other along the body length direction from the left and right buttocks to the thighs, respectively, and the intersection 24 of the tightening

parts

22 and 23 is located between the top of the buttocks and the near side 1/3 of the posterior femoral muscle group. The tightening part 22 is disposed so as to extend from the waist, specifically, the upper end of the swimsuit 21 to the outer side of the thigh part, and to the lower end of the swimsuit 21. The tightening part 23 is disposed from the waist, specifically, the upper end of the swimsuit 21 to the inner side of the thigh. The swimsuit 21 may have the same configuration as the swimsuit shown in fig. 1, except for the arrangement of the tightening

parts

22 and 23 and the intersection 24 of the tightening

parts

22 and 23.

In the swimsuit 21 of this embodiment, the fabric 104 constituting the region sandwiched between the tightening part 22 and the tightening part 23 is preferably a fabric having a higher elongation in the body length direction than the fabric 102 in the body length direction, in the region covering the thighs, from the viewpoint of smoothing the movement of the knees. In another embodiment, the fabric constituting the region sandwiched between the tightening part 22 and the tightening part 23 may be a fabric having a higher elongation in the body length direction than the elongation in the body length direction of the fabric 102.

Fig. 4 is a schematic view of the back side (body surface side) of the swimsuit according to another embodiment of the present invention, wherein (a) is a front view, (b) is a left side view, and (c) is a rear view. The swimsuit 31 is a semi-tight pants-type swimsuit for men. As shown in fig. 4(c), in the swimsuit 31 of this embodiment, 2 band-

like tightening parts

32 and 33 are disposed so as to cross each other in the body length direction from the left and right buttocks to the thighs, respectively, and the intersection 34 of the tightening

parts

32 and 33 is located between the top of the buttocks and the near side 1/3 of the posterior femoral muscle group. The tightening part 32 is disposed so as to extend from the waist, specifically, the upper end of the swimsuit 31 to the inner side of the thigh, and to the lower end of the swimsuit 31. The left and right tightening parts 32 intersect at the upper center of the buttocks. The tightening part 33 is disposed from the waist, specifically, the upper end of the swimsuit 31 to the inner side of the thigh. The swimsuit 31 may have the same configuration as the swimsuit shown in fig. 1, except for the arrangement of the tightening

parts

32 and 33 and the intersection 34 of the tightening

parts

32 and 33.

Fig. 5 is a schematic view of the back side (body surface side) of the swimsuit according to another embodiment of the present invention, wherein (a) is a front view, (b) is a left side view, and (c) is a rear view. The swimsuit 41 is a female half-body suit (half). As shown in fig. 5(c), 2 band-

like tightening parts

42 and 43 are disposed so as to cross each other along the body length direction from the hip part to the thigh part on each of the left and right sides, and the intersection 44 of the tightening

parts

42 and 43 is located between the top of the hip part and the near side 1/3 of the posterior femoral muscle group. The tightening part 42 is disposed so as to extend from the waist to the inner side of the thigh part and to extend to the lower end of the swimsuit 41. The tightening part 43 is disposed so as to reach the inner side of the thigh part from the waist part. From the viewpoint of more effectively supporting the movement of the posterior femoral muscle group, the intersection 44 is preferably located in a region covering a part of the posterior femoral muscle group, more preferably a region covering a part of the biceps femoris muscle and/or the semitendinosus muscle.

The tightening

parts

42 and 43 are provided as follows: after a tension band (not shown) is attached to the cloth 102 constituting the main body of the swimsuit 41 with a hot melt adhesive so that the longitudinal direction of the tension band extends along the body length direction, a band-shaped stretchable cloth 103 having a width larger than the width of the tension band is attached from above with a hot melt adhesive so that the tension band is covered and the longitudinal direction of the band-shaped stretchable cloth extends along the body length direction. In the swimsuit 41, the

cloth

101 and 102 are the same as those explained in the swimsuit 1 shown in fig. 1.

From the viewpoint of stably maintaining the posture of the trunk around the pelvis, the swimsuit 41 is preferably configured such that the region covering the groin and the lower abdomen is made of a fabric 102 having a low elongation in the body length direction. The groin tightening unit 35 may be disposed in an inverted ハ shape in a region covering the peripheral edge of the groin. The swimsuit 41 may have side tightening parts 36 disposed on the side surfaces of the swimsuit. The groin tightening part 35 and the side tightening part 36 can be provided as follows: after a tension band (not shown) is attached to the cloth 102 constituting the main body of the swimsuit with a hot melt adhesive so that the longitudinal direction of the tension band extends along the body length direction, a band-shaped stretchable cloth 103 is attached to the upper side of the tension band with a hot melt adhesive so as to cover the tension band and so that the longitudinal direction of the band-shaped stretchable cloth 103 having a width larger than the width of the tension band extends along the body length direction.

In this embodiment, the lower back and the upper knee girth portions are 2 pieces each on the left and right, but may be 3 pieces or more, 4 pieces or more, and the like. From the viewpoint of wearability, the total number of seams including the number of the lower half back lap-tightening portions, the sewing thread, the adhesive thread to which the cloth is attached, and the like is preferably 11 or less in the circumferential direction of the buttocks. In addition, from the viewpoint of wearability, the total number of seams including the number of the lower body back lap-top tightening portions, the sewing thread, the adhesive thread to which the cloth is attached, and the like is preferably 4 or less in each circumferential direction from the crotch portion to the upper portion of the knee of the left and right thighs.

Fig. 6 is a schematic view of the back side (body surface side) of the swimsuit according to another embodiment of the present invention, wherein (a) is a front view, (b) is a left side view, and (c) is a rear view. The swimsuit 51 is a semi-tight pants-type swimsuit for women. As shown in fig. 6(c), in the swimsuit 51 of this embodiment, 2 band-

like tightening parts

52 and 53 are disposed so as to cross each other along the body length direction from the left and right buttocks to the thighs, respectively, and the intersection 54 of the tightening

parts

52 and 53 is located between the top of the buttocks and the near side 1/3 of the posterior femoral muscle group. The tightening part 52 is disposed from the waist to the outer side of the thigh. The tightening part 53 is disposed so as to reach from the waist to the inner side of the thigh. The swimsuit 51 may have the same configuration as the swimsuit shown in fig. 5, except for the arrangement of the tightening

parts

52 and 53 and the intersection 54 of the tightening

parts

52 and 53.

Fig. 7 is a schematic view of the back side (body surface side) of the swimsuit according to another embodiment of the present invention, wherein (a) is a front view, (b) is a left side view, and (c) is a rear view. The swimsuit 61 is a semi-tight pants-type swimsuit for women. As shown in fig. 7(c), in the swimsuit 61 of this embodiment, 2 band-

like tightening portions

62 and 63 are disposed so as to cross each other along the body length direction from the left and right buttocks to the thighs, respectively, and the intersection 64 of the tightening

portions

62 and 63 is located between the top of the buttocks and the near side 1/3 of the posterior femoral muscle group. The tightening part 62 is disposed so as to extend from the waist to the outer side of the thigh part and to the lower end of the swimsuit 61. The tightening part 63 is disposed so as to reach the inner side of the thigh part from the waist part. The swimsuit 61 may have the same configuration as the swimsuit shown in fig. 5, except for the arrangement of the tightening

parts

62 and 63 and the intersection 64 of the tightening

parts

62 and 63.

In the swimsuit 61 of this embodiment, the fabric 104 constituting the region sandwiched between the tightening part 62 and the tightening part 63 is preferably a fabric having a higher elongation in the body length direction than the fabric 102 in the body length direction, in the region covering the thighs, from the viewpoint of smoothing the movement of the knees. In another embodiment, the fabric constituting the region sandwiched between the tightening part 22 and the tightening part 23 may be a fabric having a higher elongation in the body length direction than the elongation in the body length direction of the fabric 102.

Fig. 8 is a schematic view of the back side (body surface side) of the swimsuit according to another embodiment of the present invention, wherein (a) is a front view, (b) is a left side view, and (c) is a rear view. The swimsuit 71 is a semi-tight pants-type swimsuit for women. As shown in fig. 8(c), in the swimsuit 71 of this embodiment, 2 band-

like tightening parts

72 and 73 are disposed so as to cross each other in the body length direction from the left and right buttocks to the thighs, respectively, and the intersection 74 of the tightening

parts

72 and 73 is located between the top of the buttocks and the near side 1/3 of the posterior femoral muscle group. The tightening part 72 is disposed so as to extend from the waist to the thigh inner part and to extend to the lower end of the swimsuit 71. The left and right tightening parts 72 intersect at the upper center of the buttocks. The tightening part 73 is disposed so as to reach the inner side of the thigh part from the waist part. The swimsuit 71 may have the same configuration as the swimsuit shown in fig. 5, except for the arrangement of the tightening

parts

72 and 73 and the intersection 74 of the tightening

parts

72 and 73.

In the swimsuit shown in fig. 1 to 8, the tightening part is preferably disposed on the back side (body surface side) of the swimsuit, but the swimsuit of the present invention is not limited to these. For example, all or a part of the tightening part may be disposed on the front side of the swimsuit as necessary.

Examples

Hereinafter, examples of the present invention will be described, but the present invention is not limited thereto.

In examples and comparative examples, the following fabrics were used.

Cloth 101: plain woven fabric having a basis weight of 133g/m²The fiber composition of the fabric is 65% of nylon fiber and 35% of polyurethane elastic fiber. As the warp, a yarn in which polyurethane elastic fibers (fineness: 78dtex) were covered with nylon fibers (fineness: 33dtex, number of filaments: 10) was used. As the weft, a yarn in which a polyurethane elastic fiber (fineness: 55dtex) was covered with a nylon fiber (fineness: 33dtex, number of filaments: 10) was used. The density (number of weaves) was 188 warps/inch and 182 wefts/inch. The fabric is used with the warp yarns along the circumferential direction. The elongation of the fabric 101 in the body length direction was 41.7%, and the elongation in the body width direction was 35.2%.

Cloth 102: a double layer of cloth is used. The surface side fabric was a woven fabric composed of a plain weave and a double weave and had a basis weight of 138g/m²The fiber composition of the fabric is 65% of nylon fiber and 35% of polyurethane elastic fiber. Warp yarns made of polyurethaneThe yarn was covered with an ester elastic fiber (fineness: 78dtex) and a nylon fiber (fineness: 33dtex, number of filaments: 10). As the weft, a yarn in which a polyurethane elastic fiber (fineness: 55dtex) was covered with a nylon fiber (fineness: 33dtex, number of filaments: 10) and a yarn in which a polyurethane elastic fiber (fineness: 44dtex) was covered with a nylon fiber (fineness: 33dtex, number of filaments: 10) were used. The density (the number of weaves) was 184 warps/inch and 188 wefts/inch. The inner side cloth is plain woven fabric with a weight of 114g/m²The fiber composition of the fabric is 66% of nylon fiber and 34% of polyurethane elastic fiber. As the warp, a yarn in which polyurethane elastic fibers (fineness: 55dtex) were covered with nylon fibers (fineness: 24dtex, number of filaments: 7) was used. As the weft, a yarn in which polyurethane elastic fibers (fineness: 44dtex) were covered with nylon fibers (fineness: 24dtex, number of filaments: 7) was used. The density (the number of weaves) was 219 warps/inch and 187 wefts/inch. As the double-layer fabric, a fabric 102 in which fabric ends are bonded to a front fabric and a back fabric with a hot melt adhesive (product of UTAX, product name "J861") was used. In addition, both the front side fabric and the back side fabric are used with warp yarns along the circumferential direction. The elongation of the fabric 102 in the body length direction was 30.9%, and the elongation in the body width direction was 56.8%.

Cloth 103: plain woven fabric having a basis weight of 140g/m²The fiber composition of the fabric is 63% of nylon fiber and 37% of polyurethane elastic fiber. As the warp, a yarn in which polyurethane elastic fibers (fineness: 78dtex) were covered with nylon fibers (fineness: 33dtex, number of filaments: 10) was used. As the weft, a yarn in which a polyurethane elastic fiber (fineness: 55dtex) was covered with a nylon fiber (fineness: 33dtex, number of filaments: 10) was used. The density (number of weaves) was 178 warps/inch and 180 wefts/inch. The fabric was used with warp yarns along the circumferential direction. The elongation of the fabric 103 in the body length direction was 56.2%, and the elongation in the body width direction was 46.2%. The elongation of the fabric was measured according to JIS L10968.14.1A method (load: 17.6N, stretching speed: 200 mm/min).

(example 1)

Made of cloth 101, cloth 102 and cloth 103A half-tightfitting type swimsuit 1 for men (JASPO standard M size) as shown in fig. 1 was made. As shown in fig. 1(c), from the left and right buttocks to the thighs, 2 band-shaped

tightening parts

2 and 3 cross each other along the body length direction, and the intersection 4 of the tightening

parts

2 and 3 is located between the top of the buttocks and the near side 1/3 of the posterior femoral muscle group. Specifically, the tightening part 2 is disposed so as to extend from the waist, specifically, the upper end of the swimsuit 1 to the inner side of the thigh part, and to extend to the lower end of the swimsuit 1. The tightening part 3 is disposed so as to reach from the waist, specifically, the upper end of the swimsuit 1 to the inner side of the thigh. The intersection point 4 is arranged to be located at the lower edge of the buttocks to the vicinity of the gluteal cleft. The term "lower edge of the buttocks" refers to a portion located at a distance of 100%/4 from the lower end, where the length in the length direction from the upper end to the lower end of the gluteus maximus is 100%. The tightening

parts

2 and 3 are provided as follows: first, a tension tape (manufactured by SANCHEMICALS, LTD., "RF-6200", a knitted fabric made of polyester fiber having a width of 10mm and an elastic modulus of 17.5X 10 in the body length direction) was attached by a hot melt adhesive^-5N/mm²) The cloth 102 was stuck on the back side (body surface side) so that the longitudinal direction thereof was along the body length direction, and then the cloth 103 cut out in a band shape having a width of 20mm was stuck from above with a hot-melt adhesive so as to further cover the tension band and so that the longitudinal direction of the band-shaped stretchable cloth 103 was along the body length direction. The tightening part 5 disposed in the region covering the groin part is also provided in the same manner as the tightening

parts

2 and 3. In the swimming suit of example 1, the total number of seams including the lower back, lap and gather portion, the sewing thread, and the adhesive thread to which the cloth is attached is 9 in the circumferential direction of the buttocks. In example 1, the total number of seams including the lower body back lap-top tightening part, the sewing thread, and the adhesive thread of the patch cloth is 4 or less in each circumferential direction from the crotch part to the upper part of the knees of the left and right thighs of the swimsuit.

(example 2)

Using the cloth 101 and the

cloths

102 and 103, the half-tights for women 41(JASPO standard M size) as shown in fig. 5 was produced. Such asAs shown in fig. 5(c), the tightening

parts

42 and 33 in the form of 2 bands cross each other in the body length direction from the left and right buttocks to the thighs, and the crossing point 44 of the tightening

parts

42 and 33 is located between the top of the buttocks and the near side 1/3 of the posterior femoral muscle group. Specifically, the tightening part 42 is disposed so as to extend from the waist to the inner side of the thigh part and to extend to the lower end of the swimsuit 41. The tightening part 43 is disposed so as to reach the inner side of the thigh part from the waist part. The intersection point 44 is configured to be located at the lower edge of the buttocks to the vicinity of the gluteal cleft. The tightening

parts

42 and 43 are provided as follows: first, a tension tape (manufactured by SANCHEMICALS, LTD., "RF-6200", a knitted fabric made of polyester fiber having a width of 10mm and an elastic modulus of 17.5X 10 in the body length direction) was attached with a hot melt adhesive^-5N/mm²) The cloth 102 was stuck on the back side (body surface side) so that the longitudinal direction thereof was along the body length direction, and then the cloth 103 cut out in a band shape having a width of 20mm was stuck from above with a hot-melt adhesive so as to further cover the tension band and so that the longitudinal direction of the band-shaped stretchable cloth 103 was along the body length direction. The tightening part 35 disposed in the region covering the groin part and the side tightening part 36 disposed on the side surface of the swimsuit are also provided similarly to the tightening

parts

42 and 33. In the swimming suit of example 2, the total number of seams including the lower back lap gather portion, the sewing thread, and the adhesive thread of the patch cloth is 11 in the circumferential direction of the buttocks. In example 2, the total number of seams including the lower body back lap-top tightening part, the sewing thread, and the adhesive thread of the patch cloth was 4 in each circumferential direction from the crotch part to the upper part of the knees of the left and right thighs of the swimsuit.

Comparative example 1

A half-tights for male 81(JASPO standard M size) as shown in fig. 11 was produced using fabric 101 and

fabrics

102 and 103. As shown in fig. 11(c), 2 band-

like tightening parts

82 and 83 are arranged so as not to intersect each other along the body length direction from the left and right buttocks to the thighs. The tightening part 82 is disposed so as to reach the inside of the thigh from the waist, specifically the upper end of the swimsuit 81, and the tightening part 83 is disposed so as to reach the inside of the thigh from the waist, specifically the upper end of the swimsuit 81, and extend to the lower end of the swimsuit 81. The swimsuit of comparative example 1 has the same configuration as the swimsuit of example 1, except for the arrangement of the tightening

parts

82 and 83.

Comparative example 2

A half-tights for women 91(JASPO standard M size) as shown in fig. 12 was produced using fabric 101 and

fabrics

102 and 103. As shown in fig. 12(c), 2 band-

like tightening parts

92 and 93 are arranged so as not to cross each other along the body length direction from the left and right buttocks to the thighs. The tightening part 92 is disposed so as to extend from the waist to the inner side of the thigh, and the tightening part 93 is disposed so as to extend from the waist to the inner side of the thigh and to the lower end of the swimsuit 91. The swimsuit of comparative example 2 has the same configuration as the swimsuit of example 2, except for the arrangement of the tightening

parts

92 and 93.

As shown in fig. 1 c, a fabric piece 300 having a width of 5cm and a length of 15cm (for measuring the tensile elastic modulus of the tightening part), a fabric piece 400 having a width of 5cm and a length of 15cm (for measuring the tensile elastic modulus of the intersection), and a fabric piece 500 having a width of 5cm and a length of 15cm (for measuring the tensile elastic modulus of the other parts) were cut out from the swimsuit 1, and the tensile elastic moduli in the body length direction at the stretchable fabric, the tightening part, and the intersection were measured. As shown in fig. 11, a fabric piece 600(2 fastened parts) having a width of 5cm and a length of 15cm was cut out from the swimsuit 81 so as to include 2 fastened parts, and the tensile elastic modulus was measured.

(measurement of tensile modulus of elasticity)

Specifically, according to JIS L10968.14. A, a cloth piece was fixed to a tensile testing machine so as to have a width of 5cm and a length of 10cm, and the tensile modulus of elasticity (N/mm) in the body length direction was determined from the gradient of stress at 5% elongation²)。

[ Table 1]

As is clear from the data in table 1, the tensile elastic modulus in the body length direction at the intersection point where the 2 tightening parts disposed in the region where the skin is likely to stretch intersect is higher than the tensile elastic modulus in the body length direction in the case where the 2 tightening parts that do not intersect are included, and it is possible to stabilize the posture in water and effectively support the movement of the muscle group behind the thigh.

The time at 12.5mSLD was measured by 8 college students at the high level of the national congress, wearing the swimsuit of example 1 and the swimsuit of comparative example 1. In addition, the time at 15mSLD was measured by 6 college female students at high level at the national congress by wearing the swimwear of example 2 and comparative example 2. The results are shown in tables 2 and 3 below.

[ Table 2]

[ Table 3]

As is clear from the results of table 2 and table 3, the time required for wearing the swimsuit of the example was faster than that for wearing the swimsuit of the comparative example, and the exercise of the muscle groups behind the thigh, specifically, the posture maintenance in water, was more effectively supported.

The results of evaluating the muscle tensions of the extensor muscles in the joints and the internal rotator muscles in the hip joints during swimming (during freestyle swimming) with the swimwear of example 1 and comparative example 1 by the method described in japanese patent No. 5920724 No. 3831348 are shown in table 4 below. The extensor group of the femoral joint comprises gluteus maximus, gluteus medius, gluteus minimus and retrofemoral muscle groups, and the internal rotator group of the femoral joint comprises semitendinosus, semimembranosus, gluteus medius (outside), gluteus minimus (outside) and tensor fasciae latae.

[ Table 4]

	Extensor group of femoral joint	Internal rotation muscle group of femoral joint
			Example 1	696	117
Comparative example 1	708	121

As is clear from the data in table 4, when the swimsuit of the example was worn, the muscle tensions of the hip joint extensor muscle group and the hip joint internal rotation muscle group during the freestyle operation were smaller than when the swimsuit of the comparative example was worn, and the hip joint extensor muscle group and the hip joint internal rotation muscle group were supported by arranging the 2 band-shaped tightening parts so as to intersect each other along the body length direction and so that the intersection of the 2 or more band-shaped tightening parts was located between the top of the hip part and the near side 1/3 of the hip joint extensor muscle group and the hip joint internal rotation muscle group from the left and right hip parts to the thigh parts, respectively.

Industrial applicability of the invention

The swimsuit of the invention is particularly suitable for swimming competitions.

Description of the reference numerals

1. 11, 21, 31, 41, 51, 61, 71, 81, 91 swimming suit

2. 3, 12, 13, 22, 23, 32, 33, 42, 43, 52, 53, 62, 63, 72, 73, 82, 83, 92, 93 (on the lower back knees) tightening part

4. 14, 24, 34, 44, 54, 64, 74 (on the lower back knees) lacing portion intersection

5. 35 (groin part) tightening part

6 rope

36 side tightening part

101. 102, 103 and 104 cloth

200 degree of

300. 400, 500, 600 cloth piece

Claims

1. A swimsuit comprising stretchable fabric and covering at least thighs and buttocks when worn, characterized in that,

2 or more belt-like tightening parts are arranged from the left and right buttocks to the thigh part so as to cross each other along the body length direction,

the intersection of the 2 or more band-like tightening parts is located between the top of the hip and the proximal side 1/3 of the posterior femoral muscle group.

2. The swimming garment of claim 1,

the tightening part is provided by attaching a tension band to a stretchable fabric constituting the swimsuit body and then attaching a band-shaped stretchable fabric having a width larger than that of the tension band from above.

3. The swimming garment of claim 2,

the tension band and the band-shaped stretchable fabric are located on the inner side of the swimsuit.

4.A garment as claimed in any one of claims 1 to 3,

the intersections of the 2 or more strip-shaped tightening parts are located in a region covering a part of the posterior femoral muscle group.

5. A garment as claimed in any one of claims 1 to 4,

the intersections of the 2 or more string-like tightening parts are located in an area covering a part of the biceps femoris muscle and/or the semitendinosus muscle.

6. A garment as claimed in any one of claims 1 to 5,

the stretchable fabric has a tensile modulus of elasticity of 140X 10 in the body length direction measured according to JIS L10968.14. A^-5N/mm²Above and 200 × 10^-5N/mm²The following.

7. A garment as claimed in any one of claims 1 to 6,

the tightening part has a tensile modulus of elasticity in the body length direction of 160X 10 measured according to JIS L10968.14. A^- ⁵N/mm²Above and 220 × 10^-5N/mm²The following.

8. A garment as claimed in any one of claims 1 to 7,

the tensile modulus in the body length direction of the intersection of the 2 or more strip-like tightening parts measured according to JIS L10968.14. A is 220X 10^-5N/mm²Above and 420 × 10^-5N/mm²The following.