JP7190776B2 - underwear - Google Patents

Description

TECHNICAL FIELD The present invention relates to bottom garments, and more particularly to boxer-type and low-leg undergarments.

The shape of the base of the human thigh is not circular, but the front part of the inner thigh of the thigh is angular, and there is the adductor longus muscle, so in underwear such as boxers, the underwear is long. It presses the adductor muscle and causes discomfort such as pain. Therefore, in the angular part of the inner thigh of the thigh, the fabric is patched and three-dimensionally sewn.

Three-dimensional sewing is difficult to process and has a large number of connection points, resulting in poor productivity. In addition, when wearing three-dimensionally sewn undergarments, the sewing threads at the sewn portions may give a different feeling of oppression to the skin. In recent years, there is a growing trend to reduce irritation to the skin, and underwear that does not use elastic cords on the waist or legs, and does not use sewing thread, is sold with adhesive. getting demand. In addition to this, men's lower body clothing has been proposed that does not move up at the end of the hem and fits all parts (see, for example, Patent Document 1).

JP-A-2009-84768

However, the production method using adhesion has a problem that it is difficult to mass-produce underwear using three-dimensional adhesion because the process of three-dimensional adhesion is time-consuming. As a result, women's shorts account for the majority of undergarments that are composed only of adhesives, and boxer-type undergarments that are only partially sewn are sold.

In addition, undergarments that do not use elastic cords have a weak position fixing force at the waist, and there is also the problem that the upper side of the front body tends to slide down when worn.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of such problems, and provides a comfortable bottom garment that reduces the oppressive feeling in the leg part, prevents the upper side of the front body from slipping down, and is comfortable to wear. With the goal. More specifically, we provide boxer-type or low-leg underwear that minimizes the number of parts, is simple to produce, reduces pressure on the thigh, and prevents the upper part of the front body from slipping down without using an elastic cord. intended to

In order to solve the above problems, the underwear according to the present invention is an underwear such as a boxer type or low leg type shorts that uses an elastic fabric for the body, and uses elastic cords in the waist part and the leg part. When laid flat, both side portions and the upper side of the front body form an inverted W shape.

Further, it is characterized in that the fabric of the openings such as the waist portion and leg portion of the undergarment is not subjected to hemming or the like, and is left uncut.

Further, the undergarment is characterized in that the pieces of cloth constituting the undergarment are formed only by bonding.

According to this, when the underwear is put on, both side parts are raised in a vertical direction with respect to the ground, and the substantially V-shaped recessed part of the front body rises from an acute angle to an obtuse angle, and the back side of the underwear rises. It stabilizes at a position that is balanced with the position of the upper side. As the substantially V-shaped recessed portion of the front body rises, an upward pulling force is applied to the inner thigh front portion of the base of the thigh below the lowest point of the V shape. Since the abdomen of the human body bulges forward and away from the base of the thigh, the upward pulling force is applied slightly diagonally forward and upward, and the inner thigh in front of the base of the thigh is stretched. It is possible to reduce the force that presses the rotator muscles. In addition, since the upper side of the front body part is substantially V-shaped, a force that pulls the front body upward is applied more than the conventional upper side of the front body is straight, so the upper side of the front body slides down. can also be prevented.

As described above, according to the underwear according to the present invention, it is possible to realize a boxer type or low leg type underwear that reduces the feeling of pressure on the thighs and prevents the upper side of the front body from sliding down without using an elastic cord. becomes.

In addition, in underwear in which rubber is not used, the upper side of the front body may curl due to the shape of the abdomen. However, according to the underwear according to the present invention in which the upper side of the front body is V-shaped, the direction of curling changes at the lowest point of the V shape, so the curled portion does not extend to the entire width of the upper side of the front body. It also has the effect of suppressing the degree of curling compared to those that do not have a shape.

1 is an exploded view of women's underwear according to Embodiment 1 of the present invention; FIG. 1 is a front view after assembly of the female underwear according to Embodiment 1 of the present invention; FIG. 1 is a front view of the female underwear according to Embodiment 1 of the present invention when worn. FIG. 1 is a side view of the female undergarment of Embodiment 1 of the present invention when worn. FIG. FIG. 5 is a view when wearing women's underwear as viewed from line BB of FIG. 4; FIG. 4 is a view when wearing women's underwear as viewed from line AA in FIG. 3; FIG. 10 is a diagram showing a vector of force applied to P2; BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view of the women's undergarment of Embodiment 1 of the present invention laid flat. Fig. 2 is an exploded view of the men's underwear according to Embodiment 2 of the present invention; Fig. 10 is a front view after assembly of the men's underwear according to Embodiment 2 of the present invention; FIG. 5 is a view when wearing men's underwear, viewed from the same position as line BB in FIG. 4; FIG. 4 is a view when wearing men's underwear, viewed from the same position as line AA in FIG. 3; FIG. 12 is a diagram showing the force vector applied to P2'; Fig. 10 is a front view after assembly of men's underwear according to Embodiment 3 of the present invention; FIG. 11 is a side view of the third embodiment of the present invention when wearing men's underwear;

An undergarment according to the present invention will be described based on an embodiment.

In the embodiment described below, a two-way fabric having elasticity in both the warp and weft directions is used for the front and back bodies. As for the composition of the fabric, nylon and polyurethane are generally used, but polyester may be used instead of nylon, and cotton or recycled fiber may be inserted or woven. The fabric used for the body is a fabric that does not fray even if it is left uncut and does not require edge trimming. The front body and the back body are bonded using a urethane-based hot-melt adhesive, but may be bonded using other adhesives such as PUR (Poly Urethane Reactive).

First, a boxer-type women's undergarment will be described as a first embodiment.

FIG. 1 is an exploded view of the women's underwear of Embodiment 1. FIG. FIG. 2 is a front view of the female undergarment after assembly.

The women's underwear 1 of Embodiment 1 is composed of a body fabric 11 and a gusset fabric 12 . The body fabric 11 uses a two-way fabric woven with nylon thread and polyurethane thread and stretches in both the warp and weft directions, and the gusset fabric 12 uses a fabric composed only of cotton. A gusset fabric 12 is adhered to a body fabric 11 with a polyurethane-based hot-melt resin.

The body fabric 11 is composed of a front body 13 and a back body 14. - 特許庁A front body upper side 10, which is the upper side of the front body 13, is recessed in a substantially V shape. The front body 13 and the back body 14 are provided with connection portions 15, 16, 17, 18 for connecting each other at both side ends thereof. The connecting portion 15 of the front body 13 and the connecting portion 17 of the back body 14 are combined and bonded with a hot-melt resin. The women's underwear 1 is completed by bonding with a melt resin.

As shown in the front view after assembly in FIG. 2, the women's underwear 1 has both side portions 19 and 20, which are the side portions when the women's underwear 1 is laid flat after being assembled, and a substantially V-shaped front body. Around the upper side 10, the shape of the letter W is inverted. The upper side 10 of the front body, which is configured in a substantially V shape, forms an acute angle as shown in FIG.

Here, there is a reason why the shape formed by the side portions 19 and 20 and the upper side 10 of the front body is expressed not as an M shape but as an inverted W shape, that is, an inverted W shape. be.

This is because, as shown in FIG. 3, the human body is widest near the greater trochanter, which is the root of the foot, and narrows toward the waist. If both side portions 19 and 20 on both sides form an M shape that is substantially perpendicular to the base of the gusset portion, the upper side 10 of the front body, which is the waist portion, is stretched to the left and right becomes smaller. Inevitably, the force pulling the upper side 10 of the front body to the left and right is also weakened, so that P1 cannot move upward. If P1 does not rise upward, the force that pulls up the front part of the leg part naturally weakens, so the effect of the present invention, which weakens the force that presses the adductor longus muscle and makes it difficult to slide down, cannot be exhibited. put away.

The same applies to the angle at which the front body upper side 10 opens in the V shape. , P1 is small, the force for pulling up the front part of the tread portion becomes weak, and the effect of the present invention cannot be exhibited so much.

In order to exhibit a better effect, it is desirable that the angle of the V-shaped opening be an acute angle of 90 degrees or less. If the material does not stretch easily, an obtuse angle of about 120 degrees is effective to some extent, so an appropriate angle is selected according to the material used.

If the shape formed by both side portions 19 and 20 and the upper side 10 of the front body is an M shape, the underwear should be made small by using a highly elastic fabric, and the waist portion should be made to have less elasticity. It may be possible to achieve this by applying resin to the fabric, pasting fabric, or changing the knitting structure. However, complex fabrics are used in the knitting structure, the number of processes increases, and the underwear itself feels firm when worn, which causes stress on the wearer's skin. will deviate from

As shown in FIG. 2, the women's underwear 1 after assembly is completely flat and does not have a three-dimensional structure. In addition, no elastic cord is used in the openings of the waist and legs, and the edges of the fabric are not hemmed. That is, it indicates that processing is easy.

Further, in FIG. 2, the length of the back body upper side 22 of the back body 14 located on the back side after the women's underwear is assembled is set to be smaller than 1/2 of the expected wearer's waist length. By doing so, when the women's underwear 1 is put on, the front body upper side 10 is pulled left and right by the wearer's waist, and the lowest point P1 of the substantially V-shaped portion of the front body upper side 10 is pulled upward. direction is lifted. By pulling up the upper side 10 of the front body, an upward pulling force is transmitted to the crotch part where the gusset fabric 12 is located and to the leg part around the crotch part.

Normally, a force along the outline of the thigh acts on the fabric of the leg portion, so the combined force acts toward the center of the thigh. This force toward the center of the thigh presses the adductor longus muscle, giving a sensation of pain and discomfort when worn.

However, in this women's undergarment 1, since the upper part of the front body 10 is pulled up, a force is also applied to the leg part of the crotch in the forward and obliquely upward direction. It is designed to relieve force, reduce pressure on the adductor longus muscle, reduce pain, and reduce discomfort when worn.

The mechanism by which the force toward the center of the thigh is relaxed will be described in detail.

FIG. 3 is a front view showing a state in which the female underwear of Embodiment 1 is worn, and FIG. 4 is a side view thereof. 5 is a view looking up slightly from the front of line BB of FIG. 4, and FIG. 6 is a view showing a cross section of line AA of FIG. FIG. 7 is a diagram showing the force vector applied to P2.

The point P2 on the front of the inner thigh, where the adductor longus 30 is located, is angular rather than arcuate, as shown in FIG. A force along the outline of the thigh acts on the leg portion of the women's underwear 1 . Expressing the force acting as a vector, at point P2, vector 50 and vector 51 act along its outline. A vector 52, which is a composite vector of the vectors 50 and 51, is generated, and a force is applied toward the center of the thigh. At this time, since the point P2 is closer to the corner than the other thighs, the force toward the center of the thigh is greater than the others, and presses the adductor longus muscle 30 at the point P2, causing pain and discomfort. is bringing

However, in the women's underwear 1 of Embodiment 1, since the front body 13 is subjected to an upward pulling force, a force such as the vector 53 shown in FIG. Therefore, the final force is the resultant vector of vectors 52 and 53.

FIG. 7 shows these vectors as seen obliquely from behind and above.

A vector 52, which is a composite vector of vectors 50 and 51, and a vector 54, which is a composite vector of a force vector 53 that pulls the front body 13 obliquely forward and upward, is a force applied to P2 when worn. Therefore, at P2, the force directed toward the center of the thigh, ie, the force that presses the adductor longus 30, is the force from vector 54 to the point on vector 52, which is the perpendicular to vector 52. FIG. That is, the force that presses the adductor longus muscle 30 is weakened by the line segment 61/(line segment 60+line segment 61) as compared to normal underwear.

As described above, the women's underwear 1 that does not cause discomfort in the inner thighs is completed without using a complicated three-dimensional structure.

FIG. 8 is a front view of the women's undergarment 1 of Embodiment 1 laid flat, showing the state when the portion P1 is pulled up to the vicinity of the back body upper side 22 of the back body 14. FIG. According to FIG. 8, as P1 rises upward, the gait portion 31 opens wide in the front, and the portion corresponding to P2 also rises upward in the front center. Further, since the leg portion 31 near P2 protrudes toward the front portion of the inner thigh, the fabric is slackened. That is, since the portion where the adductor longus 30 exists is made loose, the feeling of tightness can be alleviated.

Since the front body 13 is always pulled upward when worn, the front body 13 is less likely to slide down.

The magnitude of each vector shown in the figure varies depending on the physical properties of the fabric used, but since the directions of the vectors are roughly the same, the effects are the same.

In the case of a fabric that stretches well even with a weak force, it is preferable to adjust the stretchability by attaching a front pad to the front body 13 as in Embodiment 2, which will be introduced below.

Next, Embodiment 2 will be described. Embodiment 2 is a boxer-type underwear for men.

FIG. 9 is an exploded view of the men's underwear of Embodiment 2. FIG. FIG. 10 is a front view after assembly of men's underwear.

The men's underwear 100 of Embodiment 2 is composed of a front body 101 , a back body 102 and a front pad 103 . As in the first embodiment, the front body upper side 110, which is the upper side of the front body 101, is recessed in a substantially V shape. The front pad 103 is adhered to the center of the front side of the front body 101 with urethane-based hot melt.

The front body 101 and the back body 102 are provided with connecting portions 104, 105, 106, 107, 108 and 109 for connecting each other at both side ends and the crotch portion. The connection portion 104 of the front body 101 and the connection portion 107 of the back body 102 are combined, the connection portion 105 of the front body 101 and the connection portion 108 of the back body 102 are combined, and bonded with a urethane-based hot-melt resin, Similarly, the connecting portion 106 of the front body 101 and the connecting portion 109 of the back body 102 are joined together and bonded with a urethane-based hot-melt resin to complete the men's underwear 100 . In addition, as in the first embodiment, elastic cords are not used in the openings of the waist portion and leg portion, and the edge of the fabric is not hemmed.

FIG. 10 is a front view after the assembly is completed. The front body 101 of this men's underwear 100 is not molded.

As in the first embodiment, in a state in which the completed men's underwear 100 is laid flat, both side portions 111 and 112, which are the side portions when the men's underwear is laid flat after being assembled, and a substantially V-shaped front body. The upper side 110 forms an inverted W shape.

When the finished men's underwear 100 is laid flat, the length of the back body upper side 113 of the back body 102 positioned on the back side after the men's underwear 100 is assembled is more than half the waist size of the assumed wearer. is also smaller. As a result, when worn, the front body upper side 110 of the front body 101 is pulled left and right, and the lowest point P1' of the front body upper side 110 is pulled upward.

FIG. 11 corresponds to FIG. 5 in the first embodiment. FIG. 12 corresponds to FIG. 6 in the first embodiment. FIG. 13 corresponds to FIG. 7 in Embodiment 1, and is a diagram showing the force vector applied to P2'.

The direction of the vector toward the center of the thigh at point P2' near the adductor longus muscle is substantially the same as in the first embodiment. 12, a force 153 that pulls the front body 101 upward, which is a feature of the men's underwear 100, is applied. In the case of a man, since there is a male genitalia 120, a force 154 directed obliquely forward and downward is further applied.

The forces applied to these points P2' are represented by vectors, and a combined vector is created as shown in FIG.

As in the first embodiment, FIG. 13 shows these vectors as seen obliquely from behind and above.

A vector has a three-dimensional structure, but it is difficult to understand if it is represented in two dimensions. Supplementally, vectors 150, 151 and 152 are coplanar, vectors 152, 154 and 155 are coplanar and substantially orthogonal to the above plane, and vectors 153, 155 and 156 are coplanar with the plane containing vector 154. They are on the same plane with a slight deviation.

The forces along the contour of the thigh are vectors 150 and 151, and the force toward the center of the thigh is vector 152, which is the resultant vector of vectors 150 and 151. FIG. This is the magnitude of the force of the conventional product in which the upper side of the front body of the front body is not formed in a V shape.

On this, the male genitalia 120 exerts a pulling force in the diagonally forward and downward direction like the vector 154, which is combined with the vector 152, which is the composite vector described above, and a vector 155 is generated as a new composite vector at the point P2'. be done.

Then, since the force that pulls the front body 101 upward acts like the vector 153, the final force becomes like the vector 156 that is the composite vector of the vectors 155 and 153. FIG.

Vector 156 is approximately coplanar and opposite to vector 152 toward the center of the thigh. Therefore, the force toward the center of the thigh is the force obtained by subtracting the vector 156 from the vector 152, and the force pressing the adductor longus 30 is weak.

Since the upper side 110 of the front body is always pulled upward, sliding down due to the weight of the male genitalia 120 is also minimized.

As described above, the men's undergarment 100 which does not use rubber and is excellent in wearing feeling is formed, which does not cause the upper side 110 of the front body to slip down when worn, does not press the inner thigh to give discomfort.

In the second embodiment, the front pad 103 is attached in order to suppress the downward pulling of the front body 101 by the weight of the male genitalia 120, but the fabric used for the front body 101 has a large elongation force. In this case, the front pad 103 may be omitted. Further, in the second embodiment, the male genitalia 120 of the front body 101 is not molded.

Since the shape of the male genitalia 120 is not molded, the front body 101 is pulled by the shape of the male genitalia 120, and a force is generated obliquely forward and downward at the point P2', and the force pressing the adductor longus 30 is weakened. become. However, even if molding is performed and the front body 101 is not pulled and the force in the diagonally forward and downward direction at the point P2' is almost eliminated, there is a force that pulls the front body 101 upward. Thus, the force that presses the adductor longus muscle 30 is weakened compared to the conventional product.

Next, Embodiment 3 will be described. Embodiment 3 is a men's boxer-type underwear similar to Embodiment 2, and differs from Embodiment 2 in that the front part is molded. In the following, the different points will be mainly described.

FIG. 14 is a front view after assembly of the men's underwear of Embodiment 3. FIG. FIG. 15 is a side view of the men's undergarment with one of the leg portions turned up upward.

In the case of molding, as shown in FIG. 15, the lowermost side of the mold 140 is folded with the center of the front body and the center of the back body of men's underwear as both ends, and one leg part is lifted up. It is configured to be located on the crotch line 141 that is formed when it is folded. As a result, the scrotum portion of the male genitalia naturally lowers the lower side portion of the mold 140, creating a downward force.

Further, the shape of the mold 140 is not circular, but has a substantially gourd shape whose width narrows upward. This is for the purpose of approximating the shape of the penis of the male genitalia so as not to create a useless space, and for the purpose of transmitting the force applied to the lowest point P1' as evenly as possible to the lower part of the front body. .

When worn, the front body upper side 110 of the front body pulls the lowest point P1' upward. The lowest point P1' produces a force that radially pulls up the lower side from the lowest point P1'. At this time, if the upper side of the mold 140 is wide, the mold 140 is, so to speak, slackened from the fabric, so that the pulling force is absorbed and is not transmitted to the lower part. As much as possible, the upper portion of the mold 140 should be narrowed to transfer the force to the lower portion. In order to reduce the slack portion, the shape of the mold 140 should be similar to the shape of the penis of the male genitalia.

In this way, the underwear according to the present invention uses a fabric that stretches both longitudinally and longitudinally for the front and back body fabrics, and the upper side of the front body is recessed in a substantially V shape to connect the front body and the back body. A pattern is created so that both side portions of the underwear and the upper side of the front body form an inverted W shape.

When the undergarment constructed in this way is worn, both armpits rise vertically with respect to the ground, and the substantially V-shaped recessed portion of the front body rises from an acute angle to an obtuse angle, and the upper side of the back side of the undergarment rises. It stabilizes at a position that is in equilibrium with the position of .

As the substantially V-shaped portion of the front body rises, an upward pulling force is applied to the front portion of the inner thigh at the base of the femur below the vicinity of the lower point of the V-shape. Since the abdomen of the human body bulges forward and away from the base of the thigh, the upward pulling force is applied diagonally forward and upward, pressing the adductor longus muscle in the front of the inner thigh of the thigh. can reduce the force of

In addition, since the upper side of the front body part is substantially V-shaped, a force that pulls the front body upward is working more than the conventional upper side of the front body is straight, so the upper side of the front body does not slide down. can also be prevented.

As described above, the underwear according to the present invention has been described based on the embodiment, but the present invention is not limited to this, and various design changes can be made within the scope of achieving the object of the present invention and not departing from the gist of the invention. are possible and all are included within the scope of the present invention.

For example, in each of the above-described embodiments, no sewing is used, but the front body and the back body may be connected by sewing, and the effects of the present invention can be exhibited.

INDUSTRIAL APPLICABILITY The underwear according to the present invention is useful as bottom clothing, and is suitable for both men and women as boxer-type or low-leg type bottom clothing.

1 Women's underwear 10, 110 Front body upper side 11 Body fabric 12 Gusset fabric 13, 101 Front body 14, 102 Back body 15, 16, 17, 18, 104, 105, 106, 107, 108, 109 Connection part 19, 20 , 111, 112 Both sides 22, 113 Upper sides of back body P1, P1' Lowermost points of upper side of front body P2, P2' Adductor longus muscle point 30 Adductor longus muscle 31 Legs 50, 51, 52, 53 , 54, 150, 151, 152, 153, 154, 155, 156 vector 60, 61 line segment 100 male underwear 103 front pad 120 male genitalia 140 mold 141 crotch line

Claims (3)

Underwear such as boxer type and low leg type shorts that use elastic fabric for the body,
No elastic cord is used in the waist part or leg part, and when laid flat, both side parts and the upper side of the front body form an inverted W shape ,
The upper side of the front body is recessed in a substantially V shape,
The angle at which the upper side of the front body opens in a substantially V shape is an acute angle.
Underwear characterized by: The fabric of the opening such as the waist part and the leg part of the underwear is not hemmed and is left uncut.
The undergarment according to claim 1, characterized by: The piece of fabric that constitutes the undergarment is constructed only by bonding.
The undergarment according to claim 1 or 2, characterized in that:

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