TWI745701B - Swimsuit - Google Patents

Abstract

The present invention relates to a swimsuit, which is composed of stretchable fabric and covers at least a part of the thighs and buttocks when worn, and is arranged in a manner to cross each other along the body length direction from the left and right buttocks to the thighs. There are more than 2 belt-shaped tightening parts, and the intersection of the above-mentioned 2 or more belt-shaped tightening parts is located between the top of the buttocks and the proximal 1/3 of the hind thigh muscles. Thereby, a swimsuit capable of stabilizing the posture in the water and supporting the movement of the hind thigh muscles is provided.

Description

Swimsuit

The present invention relates to a swimsuit. In detail, the present invention relates to a swimsuit that covers at least a part of the wearer's buttocks and thighs when worn.

In swimming, especially in swimming competitions, a swimsuit that lowers the water resistance is required. As the resistance of water, there are shape resistance depending on the shape of the body, etc. Patent Document 1 describes a swimsuit that covers a part of the gluteus maximus and hind thigh muscles by providing a tight-fitting part, thereby suppressing the lowering of the waist or foot position when swimming compared to the upper body position. Shape resistance, thereby improving sports performance. Patent Document 2 discloses a swimsuit, which is equipped with a tension band to improve the auxiliary performance so as to ensure a proper body position. The tension band extends along the outer side of the thigh area to the buttocks area. The buttocks area passes through the upper buttocks area toward the inside and extends toward the centerline of the swimsuit.

Prior art literature

Patent literature

Patent Document 1: Japanese Patent Application Publication No. 2014-91894

Patent Document 2: Japanese Special Publication No. 2017-525864

However, in the case of the swimsuits of Patent Documents 1 and 2, it is required to balance the stability of the underwater posture and the effect of supporting the activities of the hind thigh muscles.

In order to solve the above-mentioned problems, the present invention provides a swimsuit capable of stabilizing the posture in the water and supporting the movement of the hind thigh muscles.

The present invention relates to a swimsuit, which is composed of stretchable fabric and covers at least a part of the thigh and buttocks when worn, and is characterized in that: from the left and right buttocks to the thighs along the body length direction to cross each other The method is configured with more than two belt-shaped tightening parts, and the intersection of the above two or more belt-shaped tightening parts is located between the top of the buttocks and the proximal 1/3 of the hind thigh muscles.

In the swimsuit of the present invention, the above-mentioned tightening part is preferably provided by the following way, that is, after the tension band is attached to the stretchable fabric constituting the body of the swimsuit, the width of the attachment from the top of the tension band is larger than that of the above-mentioned tension band The strip stretch fabric. It is preferable that the said tension band and the said strip|belt-shaped stretch fabric are located in the back side of a swimsuit. In addition, the intersection of the two or more belt-shaped tightening parts is preferably located in an area covering a part of the posterior thigh muscle, more preferably located in an area covering a part of the biceps femoris and/or semitendinosus muscle.

In the swimsuit of the present invention, the above-mentioned stretchable fabric preferably has a tensile elastic modulus in the body length direction measured based on JIS L 1096 8.14.A method of 140×10 ^-5 N/mm ² or more and 200×10 ^-5 N/mm ² or less. ^{The tightening part preferably has a tensile elastic modulus of 160×10 -5} N/mm ² or more and 220×10 ^-5 N/mm ² or less as measured by the JIS L 1096 8.14.A method in the body length direction. Lacing strip portion of the intersection point of two or more thereof is preferably the longitudinal direction measured based on JIS L 1096 8.14.A Method of tensile elastic modulus of 220 × 10 ^-5 N / mm ² or more 420 × 10 ^{- 5} N/mm ² or less.

The present invention can provide a swimsuit that stabilizes the posture in the water and supports the movement of the hind thigh muscles.

1, 11, 21, 31, 41, 51, 61, 71, 81, 91: swimsuit

2, 3, 12, 13, 22, 23, 32, 33, 42, 43, 52, 53, 62, 63, 72, 73, 82, 83, 92, 93: (the back of the lower body above the knee)

4, 14, 24, 34, 44, 54, 64, 74: (on the back of the lower body above the knee) the intersection of the tightness

5, 35: (groin part) tightly bound part

6: Rope

36: Side tightening part

101, 102, 103, 104: cloth

200: Degree

300, 400, 500, 600: cloth piece

1001: The top of the buttocks

1002: posterior thigh muscle

1003: The area from the top of the buttocks to the proximal 1/3 of the posterior thigh muscles (position of the point of intersection)

1004: lower edge of hip

1010: gluteus maximus

1011: Upper Gluteus Maximus

1012: (Gluteus maximus) lower end

1020: Gluteus medius

1030: Gluteus minor

1040: Biceps femoris

1050: Semimembranosus

1060: Semitendinosus

Figure 1 is a schematic view of the back side (body surface side) of a swimsuit (male five-point leggings type) according to one embodiment of the present invention, and (a) is a front view, (b) is a right side view, and (c) is a back view.

Figure 2 is a schematic diagram of the back side (body surface side) of a swimsuit (male five-point tights type) according to another embodiment of the present invention, and (a) is a front view, (b) is a right side view, and (c) is Rear view.

Figure 3 is a schematic diagram of the back side (body surface side) of a swimsuit (male five-point tights) according to another embodiment of the present invention, and (a) is a front view, (b) is a right side view, and (c) is Rear view.

Figure 4 is a schematic diagram of the back side (body surface side) of a swimsuit (male five-point tights) according to another embodiment of the present invention, and (a) is a front view, (b) is a right side view, and (c) is Rear view.

Fig. 5 is a schematic view of the back side (body surface side) of a swimsuit (female five-point tights) according to another embodiment of the present invention, and (a) is a front view, (b) is a right side view, and (c) is Rear view.

Fig. 6 is a schematic diagram of the back side (body surface side) of a swimsuit (female five-point tights) according to another embodiment of the present invention, and (a) is a front view, (b) is a right side view, and (c) is Rear view.

Fig. 7 is a schematic view of the back side (body surface side) of a swimsuit (female five-point tights type) according to another embodiment of the present invention, and (a) is a front view, (b) is a right side view, and (c) is Rear view.

Figure 8 is a schematic view of the back side (body surface side) of a swimsuit (female five-point tights type) according to another embodiment of the present invention, and (a) is a front view, (b) is a right side view, and (c) is Rear view.

Figure 9 is a schematic diagram showing the stretching of the skin from the knee to the waist on the back of the lower body during swimming. d) is the case of breaststroke.

Fig. 10 is a partial schematic diagram of the back of the lower body from the knee to the waist, and shows the position of the intersection of two or more belt-shaped tight-ties.

Figure 11 shows the back side (body surface side) of the swimsuit (male five-point tights) of Comparative Example 1 Intent, and (a) is the front view, (b) is the right side view, and (c) is the rear view.

Fig. 12 is a schematic view of the back side (body surface side) of the swimsuit (female five-point tights) of Comparative Example 2, and (a) is a front view, (b) is a right side view, and (c) is a rear view.

The inventors of the present invention have conducted diligent studies in order to balance the stability of the underwater posture obtained by the swimsuit and the effect of supporting the movement of the hind thigh muscles. First, the method described in Japanese Patent No. 3831348 is used to analyze the stretching of the skin on the back of the lower body during the quick, butterfly, backstroke, and breaststroke. The results are shown in Fig. 9. (a) indicates the case of rapid stroke, (b) indicates the case of butterfly stroke, (c) indicates the case of backstroke, and (d) indicates the case of breaststroke. In Figure 9, 200 represents the degree of skin stretch, and the more from I to II, the higher the degree of skin stretch. It can be seen from Figure 9 that in various swimming, the skin covering the area from the top of the buttocks to the proximal 1/3 of the hind thigh muscles stretches greatly. In the swimsuit of the present invention, two or more belt-shaped tightening parts cross each other along the body length direction (also referred to as the height direction) from the left and right hips to the thighs, and the above two or more belt-shaped The point of intersection of the tightening part (hereinafter, also only referred to as "point of intersection"), as shown in Figure 10, is located from the top 1001 of the buttocks that extends from the skin during swimming to the proximal 1/3 of the posterior thigh muscle 1002. The configuration of the area 1003 can stabilize the posture in the water and support the movement of the hind thigh muscles. For example, to reduce the hip joint extensors including the gluteus maximus 1010, the gluteus medius 1020, the gluteus minimus 1030, and the posterior thigh muscle 1002 during swimming, as well as the semitendinosus, semimembranosus, and gluteus medius (lateral), The muscle load of the hip internal rotator group of the gluteus minimus (lateral) and fascia lata muscle. The posterior thigh muscle is a collective term for the biceps femoris 1040, semimembranosus 1050, and semitendinosus 1060 located behind the thigh (rear lower limbs). In this manual, the so-called "proximal 1/3 of the posterior thigh muscle" refers to the case where the length in the height direction from the proximal end to the distal end of the posterior thigh muscle is set to 100%. The distance between the ends is 100%/3. In addition, the so-called "top of the buttocks" refers to the length from the upper end 1011 to the lower end 1012 of the gluteus maximus in the height direction In the case of 100%, the distance from the lower end 1012 of the gluteus maximus is 100%/2.

In the present invention, the so-called "stretchable fabric" means that the elongation in the length direction of the fabric exceeds 0%. In the present invention, the elongation of the fabric is measured based on JIS L 1096 8.14.1 A method (load 17.6N, stretching speed 200mm/min).

The tightening force of the tightening part, that is, the tensile elastic modulus in the body length direction is higher than that of the other parts. In the swimsuit of the present invention, the stretch elastic modulus of the tight-fitting part is higher than that of the stretchable fabric constituting the body of the swimsuit, and in the tight-fitting part, the stretch elastic modulus of the intersection point is the highest. In the present invention, the tensile modulus of elasticity is based on the JIS L 1096 8.14.A method. Specifically, the fabric sheet is fixed to a tensile testing machine in such a way that the width of the cloth is 5cm and the length is 10cm, and it is calculated based on the slope of the stress at 5% elongation. The tensile modulus of elasticity (N/mm ² ). The length of the cloth piece means the dimension in the direction consistent with the measuring direction. For example, when measuring the modulus of elasticity in the length direction of the body, the length of the cloth piece refers to the size of the length of the cloth piece. When measuring the modulus of elasticity in the width direction of the body, the length of the cloth piece is It refers to the size of the cloth in the width direction of the body.

The above-mentioned stretchable fabric is not particularly limited, but it is preferable that the tensile modulus of elasticity in the body length direction is 140×10 ^-5 N/mm ² or more, 200×10 ^-5 N/mm ² or less, and more preferably 150×10 ^-5 N/mm ² or more and 190×10 ^-5 N/mm ² or less, more preferably 160×10 ^-5 N/mm ² or more and 180×10 ^-5 N/mm ² or less. If the stretch elastic modulus of the stretchable fabric is within the above range, not only the wearability of the swimsuit becomes good, but also the conformability is improved.

The stretchable fabric is not particularly limited, and stretchable fabrics commonly used in swimwear can be used. For example, it is preferably a unidirectional or bidirectional woven fabric or knitted fabric containing elastic yarn. The elastic yarn is preferably at least one selected from polyurethane elastic yarn and polyester elastic yarn. The reason is: high stretchability, suitable for sports clothing. The above-mentioned elastic yarn can also be used as a non-covered yarn (bare yarn) and a non-elastic yarn (hard yarn), or can be used as a covered yarn coated with polyester fiber or nylon fiber. In addition, the above-mentioned stretchable fabric may be a double-layer fabric.

The above-mentioned stretchable fabric preferably has a basis weight of 50 g/m ² or more and 400 g/m ² or less, more preferably 80 g/m ² or more and 300 g/m ² or less, and still more preferably 100 g/m ² or more 200 g /m ² or less range. As long as it is in this range, it does not cause problems such as light transmission, it is aesthetically pleasing, and there is no sense of weight, so it is excellent in wearability.

The tightening part preferably has a tensile modulus of elasticity in the body length direction of 160×10 ^-5 N/mm ² or more and 220×10 ^-5 N/mm ² or less. It is more preferably 165×10 ^-5 N/mm ² or more and 200×10 ^-5 N/mm ² or less, and still more preferably 170×10 ^-5 N/mm ² or more and 190×10 ^-5 N/mm ² or less. It is preferable that the intersection point of the tightening portion has a tensile elastic modulus in the body length direction of 220×10 ^-5 N/mm ² or more and 420×10 ^-5 N/mm ² or less. It is more preferably 240×10 ^-5 N/mm ² or more and 400×10 ^-5 N/mm ² or less, and still more preferably 260×10 ^-5 N/mm ² or more and 380×10 ^-5 N/mm ² or less. If the elastic modulus in the body length direction of the tightening part and its intersection point is within the above range, not only the swimsuit is easy to wear, but also the effect of supporting the activities of the hind thigh muscles, such as kicking, is improved. The tensile elastic modulus of the body length direction of the above-mentioned tightening part is in the swimsuit. Cut out a piece of fabric containing a belt-shaped tightening part (width 5cm, length 15cm) from the part where the tightening part is arranged outside the intersection point. , Used as a measurement sample for measurement. For example, in Fig. 1, the part of the cloth piece indicated by 300 is cut out to measure the tensile elastic modulus of the tightness part. In addition, the tensile elastic modulus in the body length direction of the intersection of the tightening part is in the swimsuit, and the fabric piece (width 5cm, length 15cm) containing the intersection of the tightening part is cut from the part where the intersection of the tightening part is arranged ), used as a measurement sample for measurement. For example, in Fig. 1, the part of the cloth piece indicated by 400 is cut out to measure the tensile modulus of elasticity at the intersection of the tightness part.

The tightening part is arranged in a belt shape along the body length direction from each of the right and left buttocks to the thighs. As long as the above-mentioned tightening parts are arranged from the left and right buttocks to the thighs, two or more, such as two, are arranged along the body length direction so that the intersection is located from the top of the buttocks to the proximal 1/3 of the hind thigh muscles. Three, four, etc. are sufficient, and there is no particular limitation. From the viewpoint of wearing feeling, it is preferable that the above-mentioned tightening parts are arranged in two from each of the right and left buttocks to the thighs. The above-mentioned tightening part is arranged with two feelings from the left and right hips to the thighs. In the shape, from the left and right hips to the thighs, it becomes a roughly X-shape.

The tightening part can also extend to the waist. It can stabilize the posture in the water more effectively. The tightening part can also extend to the lower end of the swimsuit. It can stabilize the posture in the water more effectively. From the viewpoint of more effectively stabilizing the posture in the water, at least one of the tightening parts is preferably arranged to pass through the periphery of the sacrum. From the viewpoint of more effectively stabilizing the posture in the water and supporting the movement of the hind thigh muscles, the intersection of the above-mentioned tightening part is preferably located in the area covering a part of the hind thigh muscles, more preferably located in the area covering the biceps femoris muscle And/or a part of the semitendinosus.

The above-mentioned tightening part is not particularly limited. For example, it can be provided by attaching a tension band (also called a tension band) to the body constituting the swimsuit in such a way that the length direction of the tension band is along the body length direction. After the stretchable fabric is stretched, a band-shaped stretchable fabric having a larger width than the above-mentioned tension band is attached from above the tension band so as to cover the above-mentioned tension band and the length direction of the band-like stretchable fabric is along the body length direction. From the viewpoint of reducing the shape resistance, the above-mentioned tension band and the strip-shaped stretchable fabric are preferably arranged on the back side (body surface side) of the swimsuit. By attaching the strip-shaped stretchable fabric to the tension band, the durability of the tight part can be improved, and the tension band can be prevented from detaching from the swimsuit body. The tension band and the strip-shaped stretchable fabric preferably have a width of 5 mm or more and 30 mm or less, and more preferably 10 mm or more and 20 mm or less from the viewpoint of reducing surface friction, for example. The bonding of the tension band and the strip-shaped stretchable fabric is preferably performed by bonding with a hot melt adhesive. The hot melt adhesive is not particularly limited, and examples thereof include a sheet type, a non-woven fabric type, and a liquid type.

The tension band is not particularly limited, and either knitted fabric or woven fabric can be used. For example, various commercially available tension bands can be appropriately selected and used. The above-mentioned tension band is not particularly limited, but from the viewpoint that it is easy to make the tensile modulus of elasticity in the body length direction of the tightening part 160×10 ^-5 N/mm ² or more and 220×10 ^-5 N/mm ^{2 or less} , Preferably the tensile modulus of elasticity in the body length direction (consistent with the length direction of the tension band) is 5×10 ^-5 N/mm ² or more, 30×10 ^-5 N/mm ² or less, more preferably 10×10 ^-5 N/mm ² or more, 20×10 ^-5 N/mm ² or less.

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

The swimsuit of the present invention may be a swimsuit that covers at least a part of the thigh and buttocks when worn, and the type is not particularly limited. It can also be any one of five-point leggings type, long leggings type (tight pants type), shorts (Short John) one-piece type, cold-proof (Long John) one-piece type, and full-body one-piece type.

Swimsuits are usually worn in a state of being approximately close to the wearer's body surface. In order to form a "substantially close" state, relative to the size of the naked body of the human body, the peripheral direction should be 50% or more and 110% or less, more preferably 70% or more and 95% or less, and the length should be 75% or more and 100% or less , More preferably, it is 85% or more and 100% or less to form a swimsuit. Of course, there are individual differences in the size of the human body, so the above ratio is a rough value. More specifically, the size is determined according to JASPO specifications.

The following uses diagrams for explanation. Fig. 1 is a schematic diagram of the back side (body surface side) of a swimsuit according to an embodiment of the present invention, and (a) is a front view, (b) is a right side view, and (c) is a back view. Swimsuit 1 is a five-point tights swimsuit for men. As shown in Figure 1(c), from the left and right hips to the thighs, two belt-shaped tightening parts 2 and 3 are arranged in a way that crosses each other along the body length direction (hereinafter, also referred to as the upper knee tights on the back of the lower body) Binding part), the intersection point 4 of the tight binding part 2 and 3 is located from the top of the buttocks to Between the proximal 1/3 of the posterior thigh muscle. The tightening part 2 is arranged from the waist, specifically the upper end of the swimsuit 1 to the inner part of the thigh, and extends to the lower end of the swimsuit 1. The tightening part 3 is arranged so as to reach the inner part of the thigh from the waist part, specifically, the upper end part of the swimsuit 1. From the viewpoint of supporting the activity of the posterior thigh muscles more effectively, the intersection point 4 is preferably located in an area covering a part of the posterior thigh muscle, more preferably in an area covering a part of the biceps femoris and/or semitendinosus muscle.

The tightening parts 2 and 3 are respectively provided by attaching a tension band (not shown) to the structure of the swimsuit 1 with a hot melt adhesive so that the length direction of the tension band is along the body length direction. After the cloth 102 of the main body, a band-shaped stretchable cloth 103 with a larger width than the tension band is applied from above the tension band to cover the tension band and the length direction of the band-shaped stretchable cloth 103 is along the body length direction by heat welding. Adhesive for bonding. The cloth 102 constituting the back part of the body of the swimsuit 1 and the cloth 101 constituting the front part of the body of the swimsuit 1 are cloths with different elongation in the body length direction. From the viewpoint of wearability and smooth movement of the knees, the cloth The elongation in the body length direction of 101 is preferably higher than the elongation in the body length direction of the cloth 102. From the viewpoint of keeping the posture of the hips and hind thigh muscles stable during swimming, the fabric 102 is preferably a double-layer fabric formed by bonding two fabrics with a hot melt adhesive.

From the standpoint of keeping the posture around the pelvis stable, the swimsuit 1 may also have a tight-fitting part 5 (hereinafter, also referred to as the groin tight-binding part), which utilizes a lower elongation in the body length direction The cloth 102 constitutes an area covering the groin part, and is arranged in an inverted eight shape in the area covering the periphery of the groin part. In addition, from the viewpoint of preventing the deviation of the swimsuit at the waist, the swimsuit 1 may also have a rope 6 arranged at the upper end. The groin tightening part 5 can also be arranged by attaching a tension band (not shown) to the fabric constituting the body of the swimsuit by using a hot melt adhesive such that the length direction of the tension band is along the body length direction. After 102, a strip-shaped stretchable cloth 103 with a larger width than the tension band is applied from above the tension band to cover the tension band and the length of the strip-shaped stretchable cloth 103 is along the body length direction using a hot melt adhesive. fit.

In this embodiment, the upper knee tights on the back of the lower body are tied to 2 on the left and right. However, there may be 3 or more, 4 or more, etc. From the standpoint of wearability, it is preferable that the number of stitches in the circumferential direction of the buttocks, including the number of tight-fitting parts on the back of the lower body, stitching threads, and bonding threads for fabrics, is 9 in total. Below. In addition, from the viewpoint of wearability, it is preferable that the circumference of the left and right thighs from the crotch to the knees, including the number of tight parts above the knees on the back of the lower body, sewing thread, and fitting fabric The total number of sutures, including the subsequent thread, etc., is 4 or less.

Fig. 2 is a schematic diagram of the back side (body surface side) of a swimsuit according to another embodiment of the present invention, and (a) is a front view, (b) is a right side view, and (c) is a back view. Swimsuit 11 is a five-point tights swimsuit for men. As shown in FIG. 2(c), in the swimsuit 11 of this embodiment, two belt-shaped tightening portions 12 and 13 are arranged to cross each other from each of the right and left buttocks to the thighs along the body length direction. The intersection point 14 of the bundles 12 and 13 is located from the top of the buttocks to the proximal 1/3 of the posterior thigh muscle. The tightening part 12 is arranged from the waist part, specifically, the upper end part of the swimsuit 11 to the outer side part of the thigh part. The tightening part 13 is arranged from the waist part, specifically, the upper end part of the swimsuit 11 to the inner part of the thigh. The swimsuit 11 may have the same structure as the swimsuit shown in FIG. 1 except for the arrangement of the tight-fitting parts 12 and 13 and the intersection point 14 of the tight-fitting parts 12 and 13.

Fig. 3 is a schematic diagram of the back side (body surface side) of a swimsuit according to another embodiment of the present invention, and (a) is a front view, (b) is a right side view, and (c) is a back view. Swimsuit 21 is a five-point tights swimsuit for men. As shown in FIG. 3(c), in the swimsuit 21 of this embodiment, two belt-shaped tightening portions 22 and 23 are arranged to cross each other from each of the right and left buttocks to the thighs along the body length direction. The intersection 24 of the bundles 22 and 23 is located from the top of the buttocks to the proximal 1/3 of the posterior thigh muscle. The tightening portion 22 is arranged from the waist, specifically the upper end of the swimsuit 21 to the outer side of the thigh, and extends to the lower end of the swimsuit 21. The tightening part 23 is arranged to reach the inner part of the thigh from the waist part, specifically, the upper end part of the swimsuit 21. The swimsuit 21 can have the same structure as the swimsuit shown in FIG.

In the swimsuit 21 of this embodiment, the knee movement becomes smoother. In other words, in the area covering the thighs, the fabric 104 constituting the region sandwiched by the tight-binding portion 22 and the tight-binding portion 23 preferably has a higher elongation in the body length direction than the fabric 102. In other embodiments, the fabric constituting the region sandwiched by the tight-binding portion 22 and the tight-binding portion 23 may also have a higher elongation in the body length direction than the fabric 102.

4 is a schematic diagram of the back side (body surface side) of a swimsuit according to another embodiment of the present invention, and (a) is a front view, (b) is a right side view, and (c) is a rear view. The swimsuit 31 is a five-point tights swimsuit for men. As shown in FIG. 4(c), in the swimsuit 31 of this embodiment, two belt-shaped tightening portions 32 and 33 are arranged to cross each other from each of the right and left buttocks to the thighs along the body length direction. The intersection point 34 of the bundles 32 and 33 is located from the top of the buttocks to the proximal 1/3 of the posterior thigh muscle. The tightening portion 32 is arranged from the waist, specifically the upper end of the swimsuit 31 to the inner side of the thigh, and extends to the lower end of the swimsuit 31. The left and right tightening parts 32 intersect at the center of the upper part of the buttocks. The tightening part 33 is arranged to reach the inner part of the thigh from the waist part, specifically, the upper end part of the swimsuit 31. The swimsuit 31 can have the same structure as the swimsuit shown in FIG.

Fig. 5 is a schematic diagram of the back side (body surface side) of a swimsuit according to another embodiment of the present invention, and (a) is a front view, (b) is a right side view, and (c) is a back view. Swimsuit 41 is a five-point tights type for women. As shown in Figure 5(c), from the left and right hips to the thighs, two belt-shaped tightening parts 42 and 43 are arranged to cross each other along the body length direction. The intersection point 44 of the tightening parts 42 and 43 is located From the top of the buttocks to the proximal 1/3 of the hind thigh muscles. The tightening part 42 is arranged to reach the inner part of the thigh from the waist, and extends to the lower end of the swimsuit 41. The tightening part 43 is arranged to reach the inner part of the thigh from the waist. From the viewpoint of supporting the activity of the posterior thigh muscles more effectively, the intersection point 44 is preferably located in an area covering a part of the posterior thigh muscle, more preferably in an area covering a part of the biceps femoris and/or semitendinosus muscle.

The tightening parts 42 and 43 are respectively provided by attaching a tension band (not shown) to the body of the swimsuit 41 with a hot melt adhesive so that the length direction of the tension band is along the body length direction. After the fabric 102, from the top of the tension band, a ribbon-like stretch fabric with a width larger than the tension band 103 is used for bonding with a hot melt adhesive so that the above-mentioned tension band is covered and the length direction of the strip-shaped stretchable cloth is along the body length direction. In the swimsuit 41, the fabrics 101 and 102 are the same as those described in the swimsuit 1 shown in FIG. 1.

From the viewpoint of maintaining a stable posture from the trunk to the periphery of the pelvis, the swimsuit 41 preferably uses a fabric 102 with a low elongation in the body length direction to form an area covering the groin and lower abdomen. Moreover, it may have the groin part tight-binding part 35 arrange|positioned in an inverted figure eight shape in the area|region covering the peripheral part of the groin part. In addition, the swimsuit 41 may also have a side tightening portion 36 arranged on the side of the swimsuit. The groin tightening portion 35 and the side tightening portion 36 can also be arranged in the following way, that is, a tension band (not shown) is bonded with a hot melt adhesive so that the length direction of the tension band is along the body length direction. After reaching the cloth 102 constituting the body of the swimsuit, a strip-shaped stretchable cloth 103 with a larger width than the tension band is covered from above the tension band and the length direction of the strip-shaped stretchable cloth 103 is along the body length direction. Use hot melt adhesive for bonding.

In this embodiment, the upper knee tights on the back of the lower body are two on the left and right, but there may be three or more, four or more. From the viewpoint of wearability, it is preferable that the number of stitches in the circumferential direction of the buttocks, including the number of the tight part above the knee on the back of the lower body, the sewing thread, the bonding thread of the cloth, etc., is 11 in total. Below. In addition, from the viewpoint of wearability, it is preferable that the circumference of the left and right thighs from the crotch to the knees, including the number of tight parts above the knees on the back of the lower body, sewing thread, and fitting fabric The total number of sutures, including the subsequent thread, etc., is 4 or less.

Fig. 6 is a schematic diagram of the back side (body surface side) of a swimsuit according to another embodiment of the present invention, and (a) is a front view, (b) is a right side view, and (c) is a back view. Swimsuit 51 is a five-point tights swimsuit for women. As shown in FIG. 6(c), in the swimsuit 51 of this embodiment, two belt-shaped tight-fitting portions 52 and 53 are arranged to cross each other from each of the right and left buttocks to the thighs along the body length direction. The intersection 54 of the bundles 52 and 53 is located from the top of the buttocks to the proximal 1/3 of the hind thigh muscles. The tightening part 52 is arranged from the waist to the outer side of the thigh. The tightening part 53 is arranged to reach the inner part of the thigh from the waist. The swimsuit 51 may have the same structure as the swimsuit shown in FIG. 5 except for the arrangement of the tight parts 52 and 53, and the intersection 54 of the tight parts 52 and 53.

Fig. 7 is a schematic diagram of the back side (body surface side) of a swimsuit according to another embodiment of the present invention, and (a) is a front view, (b) is a right side view, and (c) is a back view. Swimsuit 61 is a five-point tights swimsuit for women. As shown in FIG. 7(c), in the swimsuit 61 of this embodiment, two belt-shaped tightening portions 62 and 63 are arranged to cross each other along the body length direction from each of the right and left buttocks to the thighs. The intersection point 64 of the bundles 62 and 63 is located from the top of the buttocks to the proximal 1/3 of the hind thigh muscles. The tightening portion 62 is arranged from the waist to the outer side of the thigh and extends to the lower end of the swimsuit 61. The tightening part 63 is arranged to reach the inner part of the thigh from the waist. The swimsuit 61 may have the same structure as the swimsuit shown in FIG. 5 except for the arrangement of the tightness parts 62 and 63 and the intersection 64 of the tightness parts 62 and 63.

In the swimsuit 61 of this embodiment, from the viewpoint of smoothing the movement of the knees, in the area covering the thighs, the cloth 104 constituting the area sandwiched by the tightness 62 and the tightness 63 Preferably, the elongation in the body length direction is higher than that of the cloth 102. In other embodiments, the fabric constituting the region sandwiched by the tight-binding portion 22 and the tight-binding portion 23 may also have a higher elongation in the body length direction than the fabric 102.

Fig. 8 is a schematic diagram of the back side (body surface side) of a swimsuit according to another embodiment of the present invention, and (a) is a front view, (b) is a right side view, and (c) is a back view. Swimsuit 71 is a five-point tights swimsuit for women. As shown in FIG. 8(c), in the swimsuit 71 of this embodiment, two belt-shaped tight-fitting portions 72 and 73 are arranged to cross each other from each of the right and left buttocks to the thighs along the body length direction. The intersection 74 of the bundles 72 and 73 is located from the top of the buttocks to the proximal 1/3 of the posterior thigh muscle. The tightening portion 72 is arranged from the waist to the inner thigh, and extends to the lower end of the swimsuit 71. The left and right tightening parts 72 intersect at the center of the upper part of the buttocks. The tightening part 73 is arranged from the waist to the inner part of the thigh. The swimsuit 71 may have the same structure as the swimsuit shown in FIG. 5 except for the arrangement of the tightness parts 72 and 73 and the intersection 74 of the tightness parts 72 and 73.

The swimsuit shown in Figure 1~Figure 8 is a better form, the tight part is arranged on the inner side of the swimsuit (Body surface side), but the swimsuit of the present invention is not limited to this. For example, all or part of the tightening part may be arranged on the front side of the swimsuit as needed.

Example

Hereinafter, embodiments of the present invention will be described, but the present invention is not limited to these.

In the Examples and Comparative Examples, the following fabrics were used.

Cloth 101: It is a woven fabric of plain weave fabric with a unit area weight of 133g/m ^2. The fiber composition of the woven fabric is nylon fiber 65% and polyurethane elastic fiber 35%. The warp yarn is made of nylon fiber (fineness: 33dtex, number of filaments: 10) covered with polyurethane elastic fiber (fineness: 78dtex). The weft yarn is made of nylon fiber (fineness: 33dtex, number of filaments: 10) covered with polyurethane elastic fiber (fineness: 55dtex). The density (number of weaving yarns) is 188 warp yarns/inch and weft yarns 182/inch. The fabric is used in such a way that the warp yarns follow the circumferential direction. The elongation rate of the fabric 101 in the body length direction is 41.7%, and the elongation rate in the body width direction is 35.2%.

Fabric 102: Use double-layer fabric. The fabric on the front side is a woven fabric composed of a plain weave fabric and a double-layer fabric. The weight per unit area is 138g/m ^2. The fiber composition of the woven fabric is 65% nylon fiber and 35% polyurethane elastic fiber. The warp yarn is made of nylon fiber (fineness: 33dtex, number of filaments: 10) covered with polyurethane elastic fiber (fineness: 78dtex). The weft yarn uses nylon fiber (fineness: 33dtex, filament number 10) covered with polyurethane elastic fiber (fineness: 55dtex) and nylon fiber (fineness: 33dtex, filament number 10) ) Yarn made by covering polyurethane elastic fiber (fineness: 44dtex). The density (number of woven threads) is 184 warps/inch and weft 188 threads/inch. The inner fabric is a plain weave woven fabric with a unit area weight of 114g/m ^2. The fiber composition of the woven fabric is 66% nylon fiber and 34% polyurethane elastic fiber. The warp yarn is made of nylon fiber (fineness: 24dtex, number of filaments: 7) coated with polyurethane elastic fiber (fineness: 55dtex). The weft yarn is made of nylon fiber (fineness: 24 dtex, 7 filaments) covered with polyurethane elastic fiber (fineness: 44 dtex). The density (number of woven threads) is 219 warps/inch and 187 wefts/inch. The cloth 102 is used as the cloth 102 by attaching the front side cloth and the back side cloth to the ends of the cloth with a hot melt adhesive (manufactured by UTAX, trade name "J861"). Furthermore, both the front side fabric and the back side fabric are used with warp yarns along the circumferential direction. The elongation rate of the fabric 102 in the body length direction is 30.9%, and the elongation rate in the body width direction is 56.8%.

Cloth 103: It is a woven fabric of plain weave fabric with a unit area weight of 140g/m ^2. The fiber composition of the woven fabric is 63% nylon fiber and 37% polyurethane elastic fiber. The warp yarn is made of nylon fiber (fineness: 33dtex, number of filaments: 10) covered with polyurethane elastic fiber (fineness: 78dtex). The weft yarn is made of nylon fiber (fineness: 33 dtex, 10 filaments) covered with polyurethane elastic fiber (fineness: 55 dtex). The density (number of woven threads) is 178 threads/inch for warp yarns and 180 threads/inch for weft yarns. The fabric is used in such a way that the warp yarns follow the circumferential direction. The elongation rate of the fabric 103 in the body length direction is 56.2%, and the elongation rate in the body width direction is 46.2%. In addition, the elongation of the fabric is measured based on JIS L 1096 8.14.1 A method (load 17.6N, stretching speed 200mm/min).

(Example 1)

The fabric 101, the fabrics 102 and 103 are used to produce the male five-point tights type swimsuit 1 (JASPO specification M size) as shown in FIG. 1. As shown in Figure 1(c), it is set up in such a way that from the left and right hips to the thighs, the two belt-shaped tightening parts 2 and 3 cross each other along the body length direction, and the tightening parts 2 and 3 The intersection point 4 is located from the top 1001 of the buttocks to the proximal 1/3 of the hind thigh muscle 1002. Specifically, the tightening part 2 is arranged from the waist, specifically the upper end of the swimsuit 1 to the inner part of the thigh, and extends to the lower end of the swimsuit 1. The tightening part 3 is arranged so as to reach the inner part of the thigh from the waist part, specifically, the upper end part of the swimsuit 1. The intersection point 4 is configured to be located from the lower edge 1004 of the buttocks to the vicinity of the gluteal groove. The “lower edge of the buttocks” here means that the distance from the upper end 1011 to the lower end 1012 of the gluteus maximus in the height direction is 100% when the distance from the lower end 1012 is 100%/4 Location. The tightening parts 2 and 3 are set in the following way, that is, first, the tension band ("RF-6200" manufactured by San Chemicals Co., Ltd., a braid made of polyester fibers, with a width of 10 mm and a body length direction The elastic modulus of 17.5×10 ^-5 N/mm ² ) is attached to the inner side (body surface side) of the fabric 102 with a hot melt adhesive so that the length direction is along the body length direction, and then the tension band The strip-shaped cloth 103 cut into a width of 20 mm is bonded with a hot-melt adhesive so that the above-mentioned tension band is covered and the length direction of the strip-shaped stretchable cloth 103 is along the body length direction. The tightening part 5 arranged in the area covering the groin part is also arranged in the same manner as the tightening parts 2 and 3. In the circumferential direction of the buttocks of the swimsuit of Example 1, the total number of stitches including the tightness of the upper knee on the back of the lower body, the sewing thread, and the bonding thread of the cloth is 9 in total. In addition, in each circumferential direction of the left and right thighs of the swimsuit of Example 1 from the crotch to the knees, including the number of tight-knit parts above the knees on the back of the lower body, the sewing thread, and the bonding thread of the fabric The total number of sutures is 4 or less.

(Example 2)

The fabric 101, the fabrics 102 and 103 are used to produce the five-point tights-type swimsuit 41 for women (JASPO specification M size) as shown in FIG. 5. As shown in Figure 5(c), it is arranged in such a way that the two belt-shaped tightening parts 42 and 43 cross each other along the body length direction from the left and right buttocks to the thighs, and the tightening parts 42 and 43 are The intersection 44 is located from the top of the hip to the proximal 1/3 of the hind thigh muscle. Specifically, the tightening portion 42 is arranged from the waist to the inner side of the thigh, and extends to the lower end of the swimsuit 41. The tightening part 43 is arranged to reach the inner part of the thigh from the waist. The intersection 44 is arranged from the lower edge of the buttocks to the vicinity of the gluteal groove. The tightening parts 42 and 43 are manufactured in the following way, that is, first, a tension band ("RF-6200" manufactured by San Chemicals Co., Ltd., a braid made of polyester fibers, with a width of 10 mm and a body length direction The elastic modulus of 17.5×10 ^-5 N/mm ² ) is attached to the inner side (body surface side) of the fabric 102 with a hot melt adhesive so that the length direction is along the body length direction, and then the tension band The strip-shaped cloth 103 cut into a width of 20 mm is bonded with a hot-melt adhesive so that the above-mentioned tension band is covered and the length direction of the strip-shaped stretchable cloth 103 is along the body length direction. The tightening part 35 arranged in the area covering the groin part and the side tightening part 36 arranged on the side of the swimsuit are also arranged in the same manner as the tightening parts 42 and 43. In the circumferential direction of the buttocks of the swimsuit of Example 2, the total number of sutures including the tight-knit part above the knees of the back of the lower body, the sewing thread, and the bonding thread of the fabric is 11 in total. In addition, the left and right thighs of the swimsuit of Example 2 in each circumferential direction from the crotch to the knee, including the number of tight-knit parts above the knees on the back of the lower body, the sewing thread, and the bonding thread of the fabric The total number of sutures is 4.

(Comparative example 1)

The fabric 101, the fabrics 102 and 103 are used to produce the male five-point tights type swimsuit 81 (JASPO specification M size) as shown in FIG. 11. As shown in FIG. 11(c), the two belt-shaped tightening parts 82 and 83 from each of the right and left buttocks to the thigh are arranged so as not to cross each other in the body length direction. The tightening part 82 is arranged from the waist, specifically the upper end of the swimsuit 81 to the inner part of the thigh, and the tightening part 83 is arranged from the waist, specifically the upper end of the swimsuit 81 to the inner part of the thigh , And extend to the lower end of the swimsuit 81. The swimsuit of Comparative Example 1 has the same structure as the swimsuit of Example 1 except for the arrangement of the tight-fitting parts 82 and 83.

(Comparative example 2)

The fabric 101, the fabrics 102 and 103 were used to produce the five-point tights-type swimsuit 91 (JASPO specification M size) for women as shown in FIG. 12. As shown in FIG. 12(c), the two belt-shaped tightening parts 92 and 93 from each of the right and left buttocks to the thigh are arranged so as not to cross each other along the body length direction. The tightening part 92 is arranged from the waist to the inner part of the thigh, and the tightening part 93 is arranged from the waist to the inner part of the thigh, and extends to the lower end of the swimsuit 91. The swimsuit of Comparative Example 2 had the same structure as the swimsuit of Example 2 except for the arrangement of the tight-fitting parts 92 and 93.

From the swimsuit 1, as shown in Figure 1(c), cut a cloth piece 300 with a width of 5 cm and a length of 15 cm (used to determine the tensile elastic modulus of the tight part), and a cloth piece 400 with a width of 5 cm and a length of 15 cm ( Used to measure the tensile elastic modulus of the intersection point), a cloth piece 500 with a width of 5cm and a length of 15cm (used to measure the tensile elastic modulus of other parts), and measure the length of the stretchable fabric, the tight part and the body length direction of the intersection Tensile modulus of elasticity. From the swimsuit 81, as shown in FIG. 11, a cloth sheet 600 (two tightness portions) with a width of 5 cm and a length of 15 cm was cut out so as to include two tightness portions, and the tensile elastic modulus was measured.

(Determination of tensile modulus of elasticity)

Based on the JIS L 1096 8.14.A method, specifically, the fabric sheet is fixed to a tensile testing machine so that it has a width of 5 cm and a length of 10 cm, and the tensile elastic modulus in the body length direction is obtained based on the slope of the stress at 5% elongation Number (N/mm ² ).

From the data in Table 1, it can be seen that the stretch elastic modulus of the body length direction at the intersection of the two tight bands arranged in the area where the skin is easy to stretch is higher than the body length when the two uncrossed tight bands are included. The elastic modulus of stretch in the direction can stabilize the posture in the water and effectively support the activities of the hind thigh muscles.

Let 8 male college students at the top level of the Japanese national competition wear the swimsuit of Example 1 and the swimsuit of Comparative Example 1, and measure the time under 12.5m SLD (Streamline Drill). In addition, six female college students of the upper level in the Japanese national competition were allowed to wear the swimsuits of Example 2 and Comparative Example 2, and the time under 15m SLD was measured. The results are shown in Table 2 and Table 3 below.

From the results in Table 2 and Table 3 above, it can be seen that the time of wearing the swimsuit of the example is faster than that of the swimsuit of the comparative example, and it can effectively support the activities of the hind thigh muscles, specifically underwater. Maintain posture.

The method described in Japanese Patent No. 5920724 and Japanese Patent No. 3831348 was used to evaluate the hip joint extensor group and hip joint internal rotator group when swimming (during fast swimming) wearing the swimsuits of Example 1 and Comparative Example 1 Muscle tension, and the results are shown in Table 4 below. The hip extensors include gluteus maximus, gluteus medius, gluteus minimus and posterior thigh muscles, and hip internal rotators include semitendinosus, semimembranosus, gluteus medius (outside), and gluteus minimus (outside) And stretch the fascia lata muscle.

It can be seen from the data in Table 4 that compared with the situation of wearing the swimsuit of the comparative example, the muscle tension of the hip joint extensor group and hip joint internal rotator group during the short-swimming movement is lower, by From the left and right hips to the thighs, cross the two belt-shaped tight-fitting parts along the body length direction, and the intersection of the two or more belt-shaped tight-fitting parts is located from the top of the buttocks to the proximal side of the hind thigh muscles 1/ It supports the posterior thigh muscles, which in turn supports the hip extensors and hip internal rotators.

[Industrial availability]

The swimsuit of the present invention is particularly suitable for swimsuits for competitive swimming.

1: swimsuit

2, 3: (The back of the lower body and above the knee) tight part

4: (on the back of the lower body and above the knee) the junction of the tight part

5: (groin part) tight part

6: Rope

101, 102, 103: cloth

300, 400, 500: cloth piece

Claims (10)

A swimsuit is made of stretchable fabric and covers at least a part of the thigh and buttocks when worn. The swimsuit is characterized in that two parts are arranged to cross each other along the body length direction from the left and right waists to the thighs. There are more than one band-shaped tight-fitting parts, and the intersection of the above two or more band-shaped tight-fitting parts is located from the top of the buttocks to the proximal 1/3 of the hind thigh muscles. The swimsuit according to claim 1, wherein the tightening part is provided in such a way that after the tension band is attached to the stretchable fabric constituting the body of the swimsuit, the width of the attachment from the top of the tension band is greater than that of the tension A large strip of stretchable fabric. The swimsuit according to claim 2, wherein the tension band and the strip-shaped stretch fabric are located on the inner side of the swimsuit. The swimsuit according to claim 1, wherein the intersection of the two or more belt-shaped tight-fitting parts is located in an area covering a part of the posterior thigh muscle. The swimsuit according to claim 4, wherein the intersection of the two or more belt-shaped tight-fitting parts is located in an area covering a part of the biceps femoris and/or semitendinosus. The swimsuit according to any one of claims 1 to 5, wherein the stretchable fabric is based on JIS L 1096 8.14. A method of measuring the tensile modulus of elasticity in the body length direction of 140×10 ^-5 N/mm ² or more 200×10 ^-5 N/mm ² or less. The swimsuit according to any one of claims 1 to 5, wherein the tightening part is based on JIS L 1096 8.14. A method of measuring the tensile elastic modulus in the body length direction of 160×10 ^-5 N/mm ² or more 220×10 ^-5 N/mm ² or less. The swimsuit according to any one of claims 1 to 5, wherein the intersection of the two or more belt-shaped tight-fitting parts is based on JIS L 1096 8.14. A method of measuring the tensile elastic modulus in the body length direction is 220×10 ^-5 N/mm ² or more, 420×10 ^-5 N/mm ² or less. The requested item of the swimsuit 6, wherein said narrower portion is based on body length direction of stretching measured Method of JIS L 1096 8.14.A elastic modulus of 160 × 10 ^-5 N / mm ² or more 220 × 10 ^{- 5} N/mm ² or less. The swimsuit according to claim 6, wherein the intersection point of the two or more belt-shaped tight-fitting parts is based on JIS L 1096 8.14. A method of measuring the tensile elastic modulus in the longitudinal direction of 220×10 ^-5 N /mm ² or more 420×10 ^-5 N/mm ² or less.

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