JP6849820B2 - Swimsuit - Google Patents

Description

The present invention relates to a swimsuit. More specifically, 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, a swimsuit with low water resistance is required. Water resistance includes shape resistance that depends on the body shape. In Patent Document 1, the shape resistance caused by the position of the waist and legs during swimming being lower than the position of the upper body is suppressed by providing a tightening portion in the area covering a part of the gluteus maximus and the ham strings. Swimsuits with improved athletic performance are listed. Patent Document 2 includes a tension band that extends along the outside of the thigh region to the buttocks region and then extends inward from the buttocks region through the upper buttocks region toward the center line of the swimsuit. Swimsuits with enhanced performance that assist in maintaining an appropriate position have been proposed.

Japanese Unexamined Patent Publication No. 2014-91894 Special Table 2017-525864

However, in the case of the swimsuits of Patent Documents 1 and 2, it is required to achieve both the stability of the underwater posture and the effect of supporting the movement of the ham strings.

In order to solve the above problems, the present invention provides a swimsuit capable of stabilizing the underwater posture and supporting the movement of the ham strings.

The present invention is a swimsuit composed of elastic fabric and covering at least a part of the thigh and buttocks when worn, and is hung from each of the left and right buttocks to the thigh, and two or more along the body length direction. The strip-shaped tightening portions are arranged so as to intersect each other, and the intersection of the two or more strip-shaped tightening portions is located between the top of the buttocks and the proximal 1/3 of the ham strings. Regarding swimwear.

In the swimsuit of the present invention, the tightening portion is provided by attaching a tension tape to the elastic fabric constituting the swimsuit body and then attaching a tape-shaped elastic fabric having a width larger than that of the tension tape. It is preferable that it is. The tension tape and the tape-shaped elastic fabric are preferably located on the back side of the swimsuit. Further, the intersection of the two or more band-shaped tightening portions is preferably located in a region covering a part of the ham strings, and is located in a region covering a part of the biceps femoris muscle and / or the semitendinosus muscle. Is more preferable.

In the swimsuit of the present invention, the elastic fabric is JIS L 1096 8.14. It is preferable that the tensile elastic modulus in the body length direction measured based on the method A is 140 × 10 ^-5 N / mm ² or more and 200 × 10 ^-5 N / mm ^{2 or less.} The tightening part is JIS L 1096 8.14. It is preferable that the tensile elastic modulus in the body length direction measured based on the method A is 160 × 10 ^-5 N / mm ² or more and 220 × 10 ^-5 N / mm ^{2 or less.} The intersection of the two or more strip-shaped tightening portions is JIS L 1096 8.14. It is preferable that the tensile elastic modulus in the body length direction measured based on the method A is 220 × 10 ^-5 N / mm ² or more and 420 × 10 ^-5 N / mm ^{2 or less.}

The present invention can provide a swimsuit that stabilizes the underwater posture and supports the movement of the ham strings.

FIG. 1 is a schematic view of the back side (body surface side) of the swimsuit (half spats type for men) according to the embodiment of the present invention, (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 the swimsuit (half spats type for men) of another embodiment of the present invention, (a) is a front view, and (b) is a left side view. (C) is a rear view. FIG. 3 is a schematic view of the back side (body surface side) of the swimsuit (half spats type for men) of another embodiment of the present invention, (a) is a front view, and (b) is a left side view. (C) is a rear view. FIG. 4 is a schematic view of the back side (body surface side) of the swimsuit (half spats type for men) of another embodiment of the present invention, (a) is a front view, and (b) is a left side view. (C) is a rear view. 5A and 5B are schematic views of the back side (body surface side) of the swimsuit (half spats type for women) of another embodiment of the present invention, (a) is a front view, and (b) is a left side view. (C) is a rear view. FIG. 6 is a schematic view of the back side (body surface side) of the swimsuit (half spats type for women) of another embodiment of the present invention, (a) is a front view, and (b) is a left side view. (C) is a rear view. FIG. 7 is a schematic view of the back side (body surface side) of the swimsuit (half spats type for women) of another embodiment of the present invention, (a) is a front view, and (b) is a left side view. (C) is a rear view. FIG. 8 is a schematic view of the back side (body surface side) of the swimsuit (half spats type for women) of another embodiment of the present invention, (a) is a front view, and (b) is a left side view. (C) is a rear view. FIG. 9 is a schematic view showing the stretch of the skin from the knee to the lumbar region of the back of the lower body during swimming, in which (a) is a crawl, (b) is a butterfly stroke, (c) is a backstroke, and (d) is a breaststroke. Is. FIG. 10 is a partial schematic view of the back of the lower body from the knees to the lumbar region, showing the positions of the intersections of two or more strip-shaped tightening portions. FIG. 11 is a schematic view of the back side (body surface side) of the swimsuit (half spats type for men) of Comparative Example 1, (a) is a front view, (b) is a left side view, and (c) is a back view. It is a figure. FIG. 12 is a schematic view of the back side (body surface side) of the swimsuit (half spats type for women) of Comparative Example 2, (a) is a front view, (b) is a left side view, and (c) is a back view. It is a figure.

The present inventors have diligently studied in order to achieve both the stability of the underwater posture of the swimsuit and the effect of supporting the movement of the ham strings. First, the elongation of the skin on the back of the lower body during crawl, butterfly, backstroke and breaststroke was analyzed using the method described in Japanese Patent No. 3831348. The result is shown in FIG. (A) shows the case of crawl, (b) shows the case of butterfly stroke, (c) shows the case of backstroke, and (d) shows the case of breaststroke. In FIG. 9, 200 indicates the degree of skin elongation, and indicates that the degree of skin elongation increases from I to II. As can be seen from FIG. 9, during various types of swimming, the skin stretched from the top of the buttocks to the area covering the proximal 1/3 of the ham strings was large. In the swimsuit of the present invention, two or more strip-shaped tightening portions intersect each other along the body length direction (also referred to as height direction) from the left and right buttocks to the thighs, and the two above. As shown in FIG. 10, the intersection of the above band-shaped tightening portions (hereinafter, also simply referred to as “intersection”) is proximal 1 / of the hamstrings from the top of the buttocks where the skin stretches greatly during swimming. By arranging it so as to be located in the area up to 3, it is possible to stabilize the underwater posture and support the movement of the ham strings. For example, the hip extensor muscles including the gluteus maximus, gluteus medius, gluteus minimus and hamstrings during swimming, as well as the semitendinosus, semitendinosus, gluteus medius (outer) and gluteus minimus (outer). And the muscle burden of the hip joint internal rotation muscle group including the gluteus maximus muscle is reduced. Hamstrings is a combination of the biceps femoris, semimembranosus, and semitendinosus muscles on the posterior surface of the thigh (posterior surface of the lower limbs). In the present specification, "proximal 1/3 of ham strings" means that the distance from the proximal end is 100 when the length in the height direction from the proximal end to the distal end of the ham strings is 100%. The part that is% / 3. The "top of the buttocks" refers to a portion where the distance from the lower end of the gluteus maximus is 100% / 2, assuming that the length from the upper end to the lower end of the gluteus maximus in the height direction is 100%.

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

The tightening portion has a higher tightening force, that is, a tensile elastic modulus in the body length direction than the other portions. In the swimsuit of the present invention, the tensile elastic modulus of the tightening portion is higher than the tensile elastic modulus of the elastic fabric constituting the main body of the swimsuit, and among the tightening portions, the tensile elastic modulus at the intersection is the highest. In the present invention, the tensile modulus is determined by JIS L 1096 8.14. Based on the method A, specifically, the fabric piece is fixed to a tensile tester so that the width is 5 cm and the length is 10 cm, and the tensile elastic modulus (N / mm ² ) is calculated from the slope of the stress at the time of 5% elongation. Ask. The length of the dough piece means the size in the direction corresponding to the measurement direction. For example, when measuring the tensile elastic modulus in the body length direction, the length of the dough piece means the size of the dough piece in the body length direction, and when measuring the tensile elastic modulus in the width direction, the length of the dough piece is the dough. It means the size of one piece in the width direction.

The elastic fabric is not particularly limited, but the tensile elastic modulus in the body length direction ^{is preferably 140 × 10 -5} N / mm ² or more and 200 × 10 ^-5 N / mm ² or less, and more preferably 150 × 10 ^{It is -5} N / mm ² or more and 190 × 10 ^-5 N / mm ² or less, and more preferably 160 × 10 ^-5 N / mm ² or more and 180 × 10 ^-5 N / mm ² or less. When the tensile elastic modulus of the stretchable fabric is within the above-mentioned range, the wearability of the swimsuit is improved and the fit is also improved.

The elastic fabric is not particularly limited, and an elastic fabric usually used for swimwear can be used. For example, one-way or two-way woven or knitted fabrics containing elastic yarns are preferred. The elastic yarn is preferably at least one selected from polyurethane-based elastic yarn and polyester-based elastic yarn. This is because it has high stretchability and is suitable for sports clothing. 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 whose surface is coated with polyester fiber or nylon fiber. .. Further, the stretchable fabric may be a double fabric.

The elastic fabric preferably has a basis weight in ^{the range 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 further preferably 100 g / m. in the range of ² or more 200 g / m ² or less. Within this range, problems such as see-through do not occur, it is suitable for aesthetics, and there is no feeling of weight and it is excellent in wearability.

The tightening portion preferably has a tensile elastic modulus in the body length direction of 160 × 10 ^-5 N / mm ² or more and 220 × 10 ^-5 N / mm ² or less. More preferably, it is 165 × 10 ^-5 N / mm ² or more and 200 × 10 ^-5 N / mm ² or less, and more preferably 170 × 10 ^-5 N / mm ² or more and 190 × 10 ^-5 N / mm ² or less. is there. At the intersection of the tightening portions, the tensile elastic modulus in the body length direction is preferably 220 × 10 ^-5 N / mm ² or more and 420 × 10 ^-5 N / mm ² or less. More preferably 240 × 10 ^-5 N / mm ² or more and 400 × 10 ^-5 N / mm ² or less, and further preferably 260 × 10 ^-5 N / mm ² or more and 380 × 10 ^-5 N / mm ² or less. Is. When the tensile elastic modulus in the body length direction of the tightening portion and its intersection is within the above-mentioned range, the swimsuit is easy to wear and the effect of supporting the movement of the ham strings, such as a kick, is enhanced. The tensile elastic modulus in the body length direction of the tightening portion is obtained by cutting a piece of fabric (width 5 cm, length 15 cm) including one strip-shaped tightening portion from a portion where the tightening portion other than the intersection is arranged in the swimsuit. , Measure using as a measurement sample. For example, in FIG. 1, a piece of fabric in the portion indicated by 300 is cut and used for measuring the tensile elastic modulus of the tightening portion. Further, the tensile elastic modulus in the body length direction of the intersection of the tightening portions is obtained by cutting a piece of fabric (width 5 cm, length 15 cm) including the intersection of the tightening portions from the portion where the intersection of the tightening portions is arranged in the swimsuit. , Measure using as a measurement sample. For example, in FIG. 1, a piece of fabric at a portion indicated by 400 is cut and used for measuring the tensile elastic modulus at the intersection of the tightening portions.

The tightening portions are arranged in a band shape along the body length direction from the left and right hips to the thighs. Two or more of the tightening portions are hung from the left and right hips to the thighs, and two or more, for example, along the body length direction so that the intersection is located in the region from the top of the hips to the proximal 1/3 of the ham strings. It is not particularly limited as long as two, three, four, etc. are arranged. From the viewpoint of wearing comfort, it is preferable that two tightening portions are arranged from the left and right hips to the thighs. The tightening portions are hung from the left and right buttocks to the thighs, and when two are arranged, they are hung from the left and right buttocks to the thighs to form a substantially X shape.

The tightening portion may extend to the lumbar region. The underwater posture can be stabilized more effectively. The tightening portion may extend to the lower end of the swimsuit. The underwater posture can be stabilized more effectively. At least one of the tightening portions is preferably arranged so as to pass around the sacrum from the viewpoint of more effectively stabilizing the underwater posture. From the viewpoint of more effectively stabilizing the underwater posture and supporting the movement of the ham strings, the intersection of the tightening portions is preferably located in the area covering a part of the ham strings, and is preferably located in the biceps femoris and / or semi. It is more preferably located in the area covering a part of the tendon-like muscle.

The tightening portion is not particularly limited, but for example, after attaching a tension tape (also referred to as a tension band) to the elastic fabric constituting the swimsuit body so that the longitudinal direction of the tension tape is along the body length direction. A tape-shaped elastic fabric having a width larger than that of the tension tape is attached from above so as to cover the tension tape and the longitudinal direction of the tape-shaped elastic fabric is along the body length direction. Can be done. From the viewpoint of reducing shape resistance, the tension tape and the tape-shaped elastic fabric are preferably located on the back side (body surface side) of the swimsuit. By laminating a tape-shaped elastic fabric on the tension tape, the durability of the tightening portion can be enhanced and the tension tape can be prevented from coming off from the swimsuit body. From the viewpoint of reducing surface friction, for example, the tension tape and the tape-shaped elastic 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. The tension tape and the tape-shaped elastic fabric are preferably bonded 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 tape is not particularly limited, and either a knitted fabric or a woven fabric may be used. For example, various commercially available tension bands can be appropriately selected and used. The tension tape is not particularly limited, but from the viewpoint that the tensile elastic modulus in the body length direction of the tightening portion can be ^{easily set to 160 × 10 -5} N / mm ² or more and 220 × 10 ^-5 N / mm ² or less in the body length direction (tension tape). The tensile elastic modulus (corresponding to the longitudinal direction of) ^{is preferably 5 × 10 -5} N / mm ² or more and 30 × 10 ^-5 N / mm ² or less, and 10 × 10 ^-5 N / mm ² or more and 20 × More preferably, it is 10 ^-5 N / mm ^{2 or less.}

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

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 may be any of half spats type, long spats type (spats type), short john one piece type, long john one piece type, and full body one piece type.

Swimsuits are usually worn in close contact with the surface of the wearer's body. In order to create a "nearly close" state, the circumference is 50% or more and 110% or less, more preferably 70% or more and 95% or less, the length is 75% or more and 100% or less, and further, with respect to the naked size of the human body. The swimsuit is preferably formed at 85% or more and 100% or less. Of course, the size of the human body varies from person to person, so the above ratio is a guide. More specifically, the size is determined according to the JASPO standard.

This will be described below with reference to the drawings. 1A and 1B are schematic views of the back side (body surface side) of the swimsuit according to the embodiment of the present invention, (a) is a front view, (b) is a left side view, and (c) is a rear view. is there. Swimsuit 1 is a men's half-spats type swimsuit. As shown in FIG. 1 (c), two strip-shaped tightening portions 2 and 3 are arranged so as to intersect each other along the body length direction from the left and right hips to the thighs. (Hereinafter, it is also referred to as a lower body back knee tightening part.), The intersection 4 of the tightening parts 2 and 3 is located between the top of the buttocks and the proximal 1/3 of the ham strings. The tightening portion 2 is arranged so as to extend from the waist portion, specifically, the upper end portion of the swimsuit 1 to the inner portion of the thigh portion, and to the lower end portion of the swimsuit 1. The tightening portion 3 is arranged so as to extend from the waist portion, specifically, the upper end portion of the swimsuit 1 to the inner portion of the thigh portion. The intersection 4 is preferably located in the area covering a part of the hamstrings, and the area covering a part of the biceps femoris and / or the semitendinosus muscle, from the viewpoint of more effectively supporting the movement of the hamstrings. It is more preferable to be located in.

The tightening portions 2 and 3 are formed by attaching a tension tape (not shown) to the fabric 102 constituting the main body of the swimsuit 1 with a hot melt adhesive so that the longitudinal direction of the tension tape is along the body length direction, and then from above. A tape-shaped elastic fabric 103 having a width larger than that of the tension tape is bonded with a hot melt adhesive so as to cover the tension tape and so that the longitudinal direction of the tape-shaped elastic fabric 103 is along the body length direction. Provided with. The fabric 102 that constitutes the back of the main body of the swimsuit 1 and the fabric 101 that constitutes the front of the main body of the swimsuit 1 are fabrics having different elongation rates in the body length direction, and from the viewpoint of wearability and smooth movement of the knees. The elongation rate of the dough 101 in the body length direction is preferably higher than the elongation rate of the dough 102 in the body length direction. From the viewpoint of keeping the posture of the buttocks and the ham strings stable during swimming, the dough 102 is preferably a double dough in which two kinds of dough are bonded with a hot melt adhesive.

From the viewpoint of maintaining a stable posture around the pelvis, the swimsuit 1 is composed of a fabric 102 having a low elongation rate in the body length direction in the area covering the inguinal region, and is arranged in an inverted C shape in the region covering the peripheral edge of the inguinal region. It may also have a tightening portion 5 (hereinafter, also referred to as an inguinal region tightening portion). Further, the swimsuit 1 may have a string 6 arranged at the upper end portion from the viewpoint of preventing the swimsuit from shifting at the waist. The inguinal tightening portion 5 also has a tension tape (not shown) attached to the fabric 102 constituting the main body of the swimsuit with a hot melt adhesive so that the longitudinal direction of the tension tape is along the body length direction, and then the tension tape is applied from above. A tape-shaped elastic fabric 103 having a wider width is provided by laminating with a hot melt adhesive so as to cover the tension tape and so that the longitudinal direction of the tape-shaped elastic fabric 103 is along the body length direction. be able to.

In the embodiment, the lower body back knee tightening portion is two on each of the left and right, but may be three or more, four or more, and the like. From the viewpoint of wearability, it is preferable that the total number of seams including the number of the lower body back knee tightening portion, the sewing line, the adhesive line where the fabric is bonded, and the like in the circumferential direction of the buttocks is 9 or less. In addition, from the viewpoint of wearability, seams including the number of lower body back knee tightening parts, sewing lines, adhesive lines with fabrics, etc. in each circumferential direction from the inseam to above the knees of the left and right thighs. It is preferable that the total number of the above is 4 or less.

2A and 2B are schematic views of the back side (body surface side) of the swimsuit according to another embodiment of the present invention, (a) is a front view, (b) is a left side view, and (c) is a left side view. It is a rear view. The swimsuit 11 is a men's half-spats type swimsuit. As shown in FIG. 2C, the swimsuit 11 of the embodiment has two strip-shaped tightening portions 12 and 13 that hang from the left and right buttocks to the thighs, respectively, along the body length direction. Arranged so as to intersect each other, the intersection 14 of the tightening portions 12 and 13 is located between the top of the buttocks and the proximal 1/3 of the hamstrings. The tightening portion 12 is arranged so as to extend from the waist portion, specifically, the upper end portion of the swimsuit 11 to the outer portion of the thigh portion. The tightening portion 13 is arranged so as to extend from the waist portion, specifically, the upper end portion of the swimsuit 11 to the inner portion of the thigh portion. The swimsuit 11 may have the same configuration as the swimsuit shown in FIG. 1 except for the arrangement of the tightening portions 12 and 13 and the intersection 14 of the tightening portions 12 and 13.

3A and 3B are schematic views of the back side (body surface side) of the swimsuit according to another embodiment of the present invention, (a) is a front view, (b) is a left side view, and (c) is a left side view. It is a rear view. The swimsuit 21 is a men's half-spats type swimsuit. As shown in FIG. 3C, the swimsuit 21 of the embodiment has two strip-shaped tightening portions 22 and 23 that hang from the left and right buttocks to the thighs, respectively, along the body length direction. Arranged so as to intersect each other, the intersection 24 of the tightening portions 22 and 23 is located between the top of the buttocks and the proximal 1/3 of the hamstrings. The tightening portion 22 is arranged so as to extend from the waist portion, specifically, the upper end portion of the swimsuit 21 to the outer portion of the thigh portion, and to the lower end portion of the swimsuit 21. The tightening portion 23 is arranged so as to extend from the waist portion, specifically, the upper end portion of the swimsuit 21 to the inner portion of the thigh portion. The swimsuit 21 may have the same configuration as the swimsuit shown in FIG. 1 except for the arrangement of the tightening portions 22 and 23 and the intersection 24 of the tightening portions 22 and 23.

In the swimsuit 21 of the embodiment, the fabric 104 forming the region sandwiched between the tightening portion 22 and the tightening portion 23 in the region covering the thigh is longer than the fabric 102 from the viewpoint of smoothing the movement of the knee. It is preferable that the elongation rate in the direction is high. In other embodiments as well, the dough forming the region sandwiched between the tightening portion 22 and the tightening portion 23 may have a higher elongation rate in the body length direction than the dough 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, (a) is a front view, (b) is a left side view, and (c) is a left side view. It is a rear view. The swimsuit 31 is a men's half-spats type swimsuit. As shown in FIG. 4C, the swimsuit 31 of the embodiment has two strip-shaped tightening portions 32 and 33 that hang from the left and right buttocks to the thighs, respectively, along the body length direction. Arranged so as to intersect each other, the intersection 34 of the tightening portions 32 and 33 is located between the top of the buttocks and the proximal 1/3 of the hamstrings. The tightening portion 32 is arranged so as to extend from the waist portion, specifically, the upper end portion of the swimsuit 31 to the inner portion of the thigh portion, and to the lower end portion of the swimsuit 31. The left and right tightening portions 32 intersect at the upper center of the buttocks. The tightening portion 33 is arranged so as to extend from the waist portion, specifically, the upper end portion of the swimsuit 31 to the inner portion of the thigh portion. The swimsuit 31 may have the same configuration as the swimsuit shown in FIG. 1 except for the arrangement of the tightening portions 32 and 33 and the intersection 34 of the tightening portions 32 and 33.

5A and 5B are schematic views of the back side (body surface side) of the swimsuit according to another embodiment of the present invention, (a) is a front view, (b) is a left side view, and (c) is a back view. It is a figure. The swimsuit 41 is a half-suit type for women. As shown in FIG. 5 (c), two strip-shaped tightening portions 42 and 43 are arranged so as to intersect each other along the body length direction from the left and right hips to the thighs. The intersection 44 of the tightening portions 42 and 43 is located between the top of the buttocks and the proximal 1/3 of the ham strings. The tightening portion 42 is arranged so as to extend from the lumbar region to the inner portion of the thigh portion and to the lower end portion of the swimsuit 41. The tightening portion 43 is arranged so as to extend from the lumbar region to the medial portion of the thigh portion. The intersection 44 is preferably located in a region covering a part of the ham strings, and a region covering a part of the biceps femoris and / or the semitendinosus muscle, from the viewpoint of more effectively supporting the movement of the ham strings. It is more preferable to be located in.

The tightening portions 42 and 43 are formed by attaching a tension tape (not shown) to the fabric 102 constituting the main body of the swimsuit 41 with a hot melt adhesive so that the longitudinal direction of the tension tape is along the body length direction. A tape-shaped elastic fabric 103 having a width larger than that of the tension tape is bonded with a hot melt adhesive so as to cover the tension tape and so that the longitudinal direction of the tape-shaped elastic fabric is along the body length direction. Provided with. In the swimsuit 41, the fabrics 101 and 102 are the same as described in the swimsuit 1 shown in FIG.

From the viewpoint of maintaining a stable posture from the trunk to the pelvis, the swimsuit 41 preferably has a region covering the inguinal region and the lower abdomen made of a fabric 102 having a low elongation rate in the body length direction. Further, the inguinal region tightening portion 35 may be provided in an inverted C-shaped region in a region covering the peripheral edge portion of the inguinal region. Further, the swimsuit 41 may have a side tightening portion 36 arranged on the side surface of the swimsuit. The inguinal tightening portion 35 and the side tightening portion 36 are also formed by attaching a tension tape (not shown) to the fabric 102 constituting the main body of the swimsuit with a hot melt adhesive so that the longitudinal direction of the tension tape is along the body length direction. From above, a tape-shaped elastic fabric 103 having a width larger than that of the tension tape is coated with a hot melt adhesive so as to cover the tension tape and the longitudinal direction of the tape-shaped elastic fabric 103 is along the body length direction. It can be provided by pasting together.

In the embodiment, there are two left and right tightening portions on the back of the lower body, but there may be three or more, four or more, and the like. From the viewpoint of wearability, it is preferable that the total number of seams including the number of the lower body back knee tightening portion, the sewing line, the adhesive line where the fabric is bonded, and the like in the circumferential direction of the buttocks is 11 or less. In addition, from the viewpoint of wearability, seams including the number of lower body back knee tightening parts, sewing lines, adhesive lines with fabrics, etc. in each circumferential direction from the inseam to above the knees of the left and right thighs. It is preferable that the total number of the above is 4 or less.

6A and 6B are schematic views of the back side (body surface side) of the swimsuit according to another embodiment of the present invention, (a) is a front view, (b) is a left side view, and (c) is a left side view. It is a rear view. The swimsuit 51 is a women's half-spats type swimsuit. As shown in FIG. 6 (c), the swimsuit 51 of the embodiment has two band-shaped tightening portions 52 and 53 extending from the left and right buttocks to the thighs along the body length direction. Arranged to intersect each other, the intersection 54 of the tightening portions 52 and 53 is located between the top of the buttocks and the proximal 1/3 of the hamstrings. The tightening portion 52 is arranged so as to extend from the lumbar region to the outer portion of the thigh portion. The tightening portion 53 is arranged so as to extend from the lumbar region to the medial portion 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 portions 52 and 53 and the intersection 54 of the tightening portions 52 and 53.

7A and 7B are schematic views of the back side (body surface side) of the swimsuit according to another embodiment of the present invention, (a) is a front view, (b) is a left side view, and (c) is a left side view. It is a rear view. The swimsuit 61 is a women's half-spats type swimsuit. As shown in FIG. 7 (c), the swimsuit 61 of the embodiment has two band-shaped tightening portions 62 and 63 extending from the left and right buttocks to the thighs along the body length direction. Arranged so as to intersect each other, the intersection 64 of the tightening portions 62 and 63 is located between the top of the buttocks and the proximal 1/3 of the hamstrings. The tightening portion 62 is arranged so as to extend from the lumbar region to the outer portion of the thigh portion and to the lower end portion of the swimsuit 61. The tightening portion 63 is arranged so as to extend from the lumbar region to the medial portion of the thigh. The swimsuit 61 may have the same configuration as the swimsuit shown in FIG. 5, except for the arrangement of the tightening portions 62 and 63 and the intersection 64 of the tightening portions 62 and 63.

In the swimsuit 61 of the embodiment, the fabric 104 forming the region sandwiched between the tightening portion 62 and the tightening portion 63 in the region covering the thigh is longer than the fabric 102 from the viewpoint of smoothing the movement of the knee. It is preferable that the elongation rate in the direction is high. In other embodiments as well, the dough forming the region sandwiched between the tightening portion 22 and the tightening portion 23 may have a higher elongation rate in the body length direction than the dough 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, (a) is a front view, (b) is a left side view, and (c) is a left side view. It is a rear view. The swimsuit 71 is a women's half-spats type swimsuit. As shown in FIG. 8C, the swimsuit 71 of the embodiment has two strip-shaped tightening portions 72 and 73 that hang from the left and right buttocks to the thighs, respectively, along the body length direction. Arranged so as to intersect each other, the intersection 74 of the tightening portions 72 and 73 is located between the top of the buttocks and the proximal 1/3 of the hamstrings. The tightening portion 72 is arranged so as to extend from the lumbar region to the medial portion of the thigh and to the lower end portion of the swimsuit 71. The left and right tightening portions 72 intersect at the upper center of the buttocks. The tightening portion 73 is arranged so as to extend from the lumbar region to the medial portion of the thigh. The swimsuit 71 may have the same configuration as the swimsuit shown in FIG. 5, except for the arrangement of the tightening portions 72 and 73 and the intersection 74 of the tightening portions 72 and 73.

The swimsuit shown in FIGS. 1 to 8 is a preferable form, and the tightening portion is arranged on the back side (body surface side) of the swimsuit, but the swimsuit of the present invention is not limited thereto. For example, if necessary, all or part of the tightening portion may be arranged on the front side of the swimsuit.

Examples of the present invention will be described below, but the present invention is not limited thereto.

In the examples and comparative examples, the following doughs were used.
Fabric 101: A plain weave woven fabric having a texture of 133 g / m ² , and the fiber composition of the woven fabric was 65% nylon fibers and 35% polyurethane elastic fibers. As the warp, a yarn in which a polyurethane elastic fiber (fineness: 78 dtex) was covered with a nylon fiber (fineness: 33 dtex, number of filaments: 10) was used. As the weft, a polyurethane elastic fiber (fineness: 55 dtex) covered with nylon fiber (fineness: 33 dtex, number of filaments 10) was used. The density (number of threads to be driven) was 188 warp threads / inch and 182 weft threads / inch. The fabric was used so that the warp threads were along the circumferential direction. The elongation rate of the dough 101 in the body length direction was 41.7%, and the elongation rate in the width direction was 35.2%.
Fabric 102: A double fabric was used. The front side fabric was a woven fabric combining plain weave and double weave, and had a texture of 138 g / m ² , and the fiber composition of the woven fabric was 65% nylon fiber and 35% polyurethane elastic fiber. As the warp, a yarn in which a polyurethane elastic fiber (fineness: 78 dtex) was covered with a nylon fiber (fineness: 33 dtex, number of filaments: 10) was used. The weft is a polyurethane elastic fiber (fineness: 55 dtex) covered with nylon fiber (fineness: 33 dtex, number of filaments 10) and a polyurethane elastic fiber (fineness: 44 dtex) covered with nylon fiber (fineness: 33 dtex, number of filaments 10). ) Was used. The density (number of threads to be driven) was 184 warp threads / inch and 188 weft threads / inch. The back side fabric was a plain weave woven fabric with a texture of 114 g / m ² , and the fiber composition of the woven fabric was 66% nylon fibers and 34% polyurethane elastic fibers. As the warp, a polyurethane elastic fiber (fineness: 55 dtex) covered with a nylon fiber (fineness: 24 dtex, number of filaments: 7) was used. As the weft, a polyurethane elastic fiber (fineness: 44 dtex) covered with a nylon fiber (fineness: 24 dtex, number of filaments 7) was used. The density (number of threads to be driven) was 219 warp threads / inch and 187 weft threads / inch. The double fabric obtained by laminating the front side fabric and the back side fabric with a hot melt adhesive (manufactured by Utax Co., Ltd., product name "J861") at the edges of the fabric was used as the fabric 102. Both the front side fabric and the back side fabric were used so that the warp threads were along the circumferential direction. The elongation rate of the dough 102 in the body length direction was 30.9%, and the elongation rate in the width direction was 56.8%.
Fabric 103: A plain weave woven fabric having a texture of 140 g / m ² , and the fiber composition of the woven fabric was 63% nylon fibers and 37% polyurethane elastic fibers. As the warp, a yarn in which a polyurethane elastic fiber (fineness: 78 dtex) was covered with a nylon fiber (fineness: 33 dtex, number of filaments: 10) was used. As the weft, a polyurethane elastic fiber (fineness: 55 dtex) covered with nylon fiber (fineness: 33 dtex, number of filaments 10) was used. The density (number of threads to be driven) was 178 warp threads / inch and 180 weft threads / inch. The fabric was used so that the warp threads were along the circumferential direction. The elongation rate of the dough 103 in the body length direction was 56.2%, and the elongation rate in the width direction was 46.2%.
The elongation rate of the dough was measured based on the JIS L 1096 8.14.1 A method (load 17.6 N, tensile speed 200 mm / min).

(Example 1)
Using the fabrics 101, 102 and 103, a men's half-spats type swimsuit 1 (JASPO standard M size) as shown in FIG. 1 was produced. As shown in FIG. 1 (c), from the left and right hips to the thighs, the two strip-shaped tightening portions 2 and 3 intersect each other and tighten along the body length direction. The intersection 4 of the parts 2 and 3 was arranged so as to be located between the top of the buttocks and the proximal 1/3 of the ham strings. Specifically, the tightening portion 2 is arranged so as to extend from the waist portion, specifically, the upper end portion of the swimsuit 1 to the inner portion of the thigh portion, and extend to the lower end portion of the swimsuit 1. The tightening portion 3 was arranged so as to extend from the waist portion, specifically, the upper end portion of the swimsuit 1 to the inner portion of the thigh portion. The intersection 4 was arranged so as to be located near the gluteal sulcus from the lower edge of the buttocks. Here, the "lower edge of the buttocks" refers to a portion where the distance from the lower end is 100% / 4, assuming that the length in the height direction from the upper end to the lower end of the gluteus maximus is 100%. The tightening portions 2 and 3 are first placed on the back side (body surface side) of the fabric 102 with a tension tape (“RF-6200” manufactured by Sun Kasei Co., Ltd., a knit made of polyester fibers, a width of 10 mm, and an elastic modulus in the body length direction. A rate of 17.5 × 10 ^-5 N / mm ² ) was bonded with a hot melt adhesive so that its longitudinal direction was along the body length direction, and then a tape-shaped fabric 103 having a width of 20 mm was further cut from above with the tension. It was provided by laminating with a hot melt adhesive so as to cover the tape and so that the longitudinal direction of the tape-shaped elastic fabric 103 was along the body length direction. The tightening portion 5 arranged in the area covering the inguinal region was also provided in the same manner as the tightening portions 2 and 3. In the circumferential direction of the buttocks of the swimsuit of Example 1, the total number of seams including the lower body back knee tightening portion, the sewing line, and the adhesive line where the fabrics were bonded was nine. In addition, in each circumferential direction from the inseam to above the knee of the left and right thighs of the swimsuit of Example 1, the number of the lower body back knee tightening portion, the sewing line, and the seam including the adhesive line where the fabric is bonded are included. The total number was 4 or less.

(Example 2)
Using the fabrics 101, 102 and 103, a women's half-spats type swimsuit 41 (JASPO standard M size) as shown in FIG. 5 was produced. As shown in FIG. 5 (c), the two strip-shaped tightening portions 42 and 33 are tightened so as to intersect each other along the body length direction from the left and right hips to the thighs, respectively. The intersection 44 of the portions 42 and 33 was arranged so as to be located between the top of the buttocks and the proximal 1/3 of the ham strings. Specifically, the tightening portion 42 is arranged so as to extend from the lumbar region to the medial portion of the thigh portion and to the lower end portion of the swimsuit 41. The tightening portion 43 was arranged so as to extend from the lumbar region to the medial portion of the thigh. The intersection 44 was arranged so as to be located near the gluteal sulcus from the lower edge of the buttocks. The tightening portions 42 and 43 are first placed on the back side (body surface side) of the fabric 102 with a tension tape (“RF-6200” manufactured by Sun Kasei Co., Ltd., a knit made of polyester fibers, a width of 10 mm, and an elastic modulus in the body length direction. Ratio 17.5 × 10 ^-5 N / mm ² ) After laminating with hot melt adhesive so that the longitudinal direction is along the body length direction, the dough 103 cut into a tape shape with a width of 20 mm is further cut from above with the tension tape. The tape-shaped elastic fabric 103 was provided by laminating with a hot melt adhesive so as to cover the above and so that the longitudinal direction of the tape-shaped elastic fabric 103 was along the body length direction. The tightening portion 35 arranged in the area covering the inguinal region and the side tightening portion 36 arranged on the side surface of the swimsuit were also provided in the same manner as the tightening portions 42 and 33. In the circumferential direction of the buttocks of the swimsuit of Example 2, the total number of seams including the lower body back knee tightening portion, the sewing line, and the adhesive line where the fabrics were bonded was 11. In addition, in each circumferential direction from the inseam to above the knee of the left and right thighs of the swimsuit of Example 2, the number of the lower body back knee tightening portion, the sewing line, and the seam including the adhesive line where the fabric is bonded are included. The total number was four.

(Comparative Example 1)
Using the fabrics 101, 102 and 103, a men's half-spats type swimsuit 81 (JASPO standard M size) as shown in FIG. 11 was produced. As shown in FIG. 11 (c), the two strip-shaped tightening portions 82 and 83 were arranged so as not to intersect each other along the body length direction from the left and right hips to the thighs. The tightening portion 82 is arranged so as to extend from the waist portion, specifically, the upper end portion of the swimsuit 81 to the inner portion of the thigh portion, and the tightening portion 83 is arranged from the lumbar region, specifically, the upper end portion of the swimsuit 81 to the thigh portion. It was arranged so as to reach the inner part of the swimsuit and extend to the lower end of the swimsuit 81. The swimsuit of Comparative Example 1 had the same configuration as the swimsuit of Example 1 except for the arrangement of the tightening portions 82 and 83.

(Comparative Example 2)
Using the fabrics 101, 102 and 103, a women's half-spats type swimsuit 91 (JASPO standard M size) as shown in FIG. 12 was produced. As shown in FIG. 12 (c), the two strip-shaped tightening portions 92 and 93 were arranged so as not to intersect each other along the body length direction from the left and right hips to the thighs. The tightening portion 92 is arranged from the lumbar region to the inner portion of the thigh, and the tightening portion 93 extends from the lumbar region to the medial portion of the thigh and extends to the lower end portion of the swimsuit 91. Was placed. The swimsuit of Comparative Example 2 had the same configuration as the swimsuit of Example 2 except for the arrangement of the tightening portions 92 and 93.

From the swimsuit 1, as shown in FIG. 1 (c), a cloth piece 300 having a width of 5 cm and a length of 15 cm (for measuring the tensile elastic modulus of the tightening portion), and a cloth piece 400 having a width of 5 cm and a length of 15 cm (for measuring the tensile elastic modulus of the tightening portion). Cut the dough piece 500 (for measuring the tensile elastic modulus of other parts) with a width of 5 cm and a length of 15 cm (for measuring the tensile elastic modulus of the intersection), and cut the elastic cloth, the tightening part, and the tensile elastic modulus of the intersection in the body length direction. Was measured. As shown in FIG. 11, a fabric piece 600 (two tightening portions) having a width of 5 cm and a length of 15 cm was cut from the swimsuit 81 so as to include the two tightening portions, and the tensile elastic modulus was measured.

(Measurement of tensile elastic modulus)
JIS L 1096 8.14. Based on the A method, specifically, the dough piece is fixed to a tensile tester so as to have a width of 5 cm and a length of 10 cm, and the tensile elastic modulus (N / mm) in the body length direction from the inclination of the stress at the time of 5% elongation. ² ) was asked.

As can be seen from the data in Table 1, when the tensile elastic modulus in the body length direction at the intersection where the two tightening portions arranged in the region where the skin is easily stretched includes the two non-intersecting tightening portions. It has a higher tensile elastic modulus in the body length direction, stabilizes the underwater posture, and can effectively support the movement of the ham strings.

The swimsuit of Example 1 and the swimsuit of Comparative Example 1 were worn by eight male university students at the upper level of the national competition, and the time at 12.5 mSLD was measured. In addition, six swimsuit national competition high-level female university students of Example 2 and Comparative Example 2 were allowed to wear them, and the time at 15 mSLD was measured. The results are shown in Tables 2 and 3 below.

As can be seen from the results in Tables 2 and 3 above, wearing the swimsuit of the example has a faster time than wearing the water of the comparative example, and the movement of the ham strings, specifically underwater. I was able to effectively support the posture maintenance of

The muscle tensions of the extensor muscles of the joint and the internal rotation of the hip joint when swimming (when crawling) while wearing the swimsuits of Example 1 and Comparative Example 1 are evaluated by using the method described in Japanese Patent No. 5920724. The results are shown in Table 4 below. The hip extensor muscles include the gluteus maximus, gluteus medius, gluteus minimus and gluteus minimus, and the internal hip joints include the semitendinosus, semitendinosus, gluteus medius (lateral) and gluteus minimus. Includes (outer) and tensor fasciae latae.

From the data in Table 4, when the swimsuit of the example was worn, the muscle tensions of the hip extensor muscle group and the hip joint internal rotation muscle group during the crawl motion were smaller than those of the case of wearing the swimsuit of the comparative example, and the muscle tensions of the left and right hip joints were smaller. From the buttock to the thigh, the two strip-shaped tightening parts intersect each other along the body length direction, and the intersection of the two or more strip-shaped tightening parts is proximal to the hamstrings from the top of the hip joint. It was found that the hamstrings were supported by arranging them so as to be located between 1/3, and thus the hip extensor muscle group and the hip joint internal rotation muscle group were supported.

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

1, 11, 21, 31, 41, 51, 61, 71, 81, 91 Swimsuits 2, 3, 12, 13, 22, 23, 32, 33, 42, 43, 52, 53, 62, 63, 72, 73, 82, 83, 92, 93 (lower body back above knee) Tightening part 4, 14, 24, 34, 44, 54, 64, 74 (lower body back above knee) Tightening part intersection 5, 35 (groin) tightening Part 6 String 36 Side tightening part 101, 102, 103, 104 Fabric 200 degree 300, 400, 500, 600 Fabric piece

Claims (6)

A swimsuit made of elastic fabric that covers at least part of the thighs and buttocks when worn.
From the left and right hips to the thighs, two or more band-shaped tightening parts are arranged so as to intersect each other along the body length direction.
The intersection of the two or more strip-shaped tightening portions is located between the top of the buttocks and the proximal 1/3 of the ham strings and in the area covering a part of the ham strings.
The intersection of the two or more strip-shaped tightening portions is JIS L 1096 8.14. The tensile elastic modulus in the body length direction measured based on the A method is 220 × 10 ^-5 N / mm ² or more and 420 × 10 ^-5 N / mm ² or less.
The swimsuit is a swimsuit characterized by being a swimsuit for swimming. The tightening portion is provided by laminating a tension tape on the stretchable fabric constituting the swimsuit body and then laminating a tape-shaped elastic fabric having a width larger than that of the tension tape on the tension tape. The swimsuit described in. The swimsuit according to claim 2, wherein the tension tape and the tape-shaped elastic fabric are located on the back side of the swimsuit. The swimsuit according to any one of claims 1 to 3 , wherein the intersection of the two or more band-shaped tightening portions is located in an area covering a part of the biceps femoris muscle and / or the semitendinosus muscle. The elastic fabric is made of JIS L 1096 8.14. The swimsuit according to any one of claims 1 to 4 , wherein the tensile elastic modulus in the body length direction measured based on the method A is 140 × 10 ^-5 N / mm ² or more and 200 × 10 ^-5 N / mm ^{2 or less.} .. The tightening part is JIS L 1096 8.14. The swimsuit according to any one of claims 1 to 5 , wherein the tensile elastic modulus in the body length direction measured based on the method A is 160 × 10 ^-5 N / mm ² or more and 220 × 10 ^-5 N / mm ^{2 or less.} ..

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