KR101880530B1 - Close adhesion type pants having integrated underwear - Google Patents

Abstract

The present invention relates to tight pants integrated with an underwear, integrally including the underwear in tight pants to be worn without wearing a separate underwear. In particular, an inner cover type underwear covering a private part and an anus is integrally formed inside the tight pants, wherein the inner cover type underwear is formed by stacking four layers, which are a waterproof layer, a volume forming layer, an absorption layer, and a cotton layer, on the inner surface of the pants in the direction in contact with a human body so as to provide a function of an underwear. Accordingly, when the tight pants are applied to female pants used as an outer, such as a training suit, a yoga suit, and the like, the volume forming layer prevents wrinkles from being formed on a genital part of a female. When the tight pants are applied to tights or pantyhose, it is possible to prevent underwear marks from being noticeable.

Description

{CLOSE ADHESION TYPE PANTS HAVING INTEGRATED UNDERWEAR}

[0001] The present invention relates to an undergarment-type trousers which are integrally provided with tightly-fitting pants and which can be worn without wearing separate undergarments. More particularly, the present invention relates to an undergarment- And the endothelial panty is integrally formed by stacking four layers of a waterproof layer, a volume forming layer, an absorbent layer and a face layer in the direction in contact with the human body on the inner surface of the trousers to provide the function of panties. Especially when it is applied to women 's pants such as training clothes and yoga clothes, wrinkles can be prevented from appearing on the local part of women due to the voluminous layer, and when applied to tights or pantyhose, it is possible to prevent external display The present invention relates to an undergarment integral type trousers.

In general, women's pants are provided in the form used for outerwear such as jeans, training suits, ballet or yoga suits, or in stockings or skirts or pants. In order to make the legs thin and long, Is preferred.

In particular, in yoga and gyms, wearing tight clothing is prevalent to prevent physical activity, and most of them wear underwear such as panties and wear yoga suits or sweat suits outside.

This is because there is no separate absorbing function in the contact pants, so it is easily disadvantageous in that it is easily wetted by body fluids including menstrual blood or residual urine or sweat generated when it is worn alone, and is displayed outside, and the disadvantage that wrinkles are displayed outside by the female genital structure So, even though it is inconvenient to supplement it, I wear more inner underwear.

However, if the underwear is not attached to the human body even if the user wears the underwear, the overlapped portions of the pants may be displayed outside the pants because portions of the pants overlap when the tight pants are put on. In addition, when a thin human-body-contact panty is worn to prevent overlapping of the panties, there is a problem that the panty line is exposed to the outside due to the bending of the boundary between the body and the panties due to excessive pressing. Further, in the case of a panty which is prevented from being displayed on the outside, since the material is thin, it is difficult to completely remove the wrinkle marks caused by the localization of women even in the inside of the tight pants.

Also, in the case of pantyhose, which is a stocking type, as described above, there is a problem that wrinkles and boundary lines of panties are displayed outside.

Thus, in order to solve the inconvenience when the underwear is worn together with the functional garment, the undergarment is provided with the integral pants.

Korean Utility Model No. 20-1986-0012694 (published on May 11, 1986, hereinafter referred to as "Prior Art Document 1") proposed a structure for sewing pants in contact with the inside of pajamas, and Korean Registered Utility Model No. 20-0179036 (Registered on Feb. 2, 2000, hereinafter referred to as "Prior Art 2") has proposed a structure in which pants are integrally attached only to the inner surface of the pants, and Korean Utility Model Application 20-2016-0000484 (Feb. (Hereinafter referred to as "prior art document 3"), a structure in which the stocking is extended integrally with the lower part of the underpants is proposed. Since the prior arts 1 and 2 are formed by joining only the entire panty or the entire front side, the disadvantage that the panty folding or the boundary surface is displayed outside is solved, but there is no volume forming layer, It can not be prevented. The prior art document 3 shows a structure for fitting underpants and stockings, but the structure is somewhat structurally different from the one-panty type of the present invention because it is a structure for wearing panties inside.

In addition, the Korean Registered Utility Model No. 20-0365097 (registered on October 6, 2004, hereinafter referred to as "Prior Art Document 4") relates to a pair of male and female pantyhose, comprising a finishing fabric disposed on the panty- And an extended fabric extending from the fabric to the back through the lower portion to provide a structure for integrating the panty function with the stocking. However, in the prior art document 4, the finished fabric is one or two layers selected from the cotton fabric, the mesh fabric, the span fabric, and the stocking fabric, and there is no separate formation layer. In addition, since the stocking is a pressing type material, the part contacting with the local part of the human body, which is the central part where the two legs are split due to the pulling force by the thigh side, is excited and fails to provide the absorbing function.

Therefore, it is necessary to study a garment pants with an integral structure of underwear which can improve the ventilation of the crotch part while improving the adhesion.

Korean Public Utility Model No. 20-1986-0012694 (Published November 5, 1986): Pajamas Combination Panties Korean Registered Utility Model No. 20-0179036 (Registered on Feb. 02, 2000): Panty One Piece Pants Korean Public Utility Model No. 20-2016-0000484 (Registered on Feb. 15, 2016): stocking-type underpants Korean Registered Utility Model No. 20-0365097 (registered on October 6, 2004): Unisex Pantyhose

Accordingly, in the undergarment-integrated pants according to the present invention,

The inner panty panty covering the local area and the anus is integrally formed in the inside of the pants, and the inner panty panty is laminated in multiple layers, and one of them is constituted by the volume forming layer so that even when the panty is made of thin material, The present invention provides a functional pants capable of preventing the display from being displayed.

In addition, in the case of a pants of a press material, the present invention forms a through hole in the crotch part, which is a part of the inner thigh between the two legs, thereby improving the ventilation and improving the adhesion of the central part to the human body by removing the pulling force to the two legs The other purpose of the present invention is to provide a tight pants.

In order to overcome the above-mentioned problem, the undergarment-

A body including a pelvis enclosing body part to be closely contacted with the pelvis, and a leg part integrally connected to the body part and wrapping both legs in close contact with each other; A front pad which is integrally sewn on the inner surface of the body of the outer cover, a front pad which is in contact with a local portion of the front face of the human body, a rear pad which is in contact with the anus of the back of the human body, And an endothelium-shaped panty composed of a central connection pad which is widened.

The surface of the outer garment may further include a through hole formed in the inner side of the thigh, which is both side portions of the endothelium panty, in the leg portion, so that the ventilation of the crotch portion and the central portion adhesion between the two legs can be improved.

In addition, the endothelial panty may be laminated so as to include a volume forming layer and a face layer in an inner direction from the inner surface of the outer layer, or may be laminated such that a waterproof layer, a volume forming layer, an absorbing layer and a face layer are included, Pads can be used.

In addition, the endothelial panty may be formed by forming a fixing protrusion bent in a V-shape from a center connection pad to a back pad so as to be inserted into a bone between the heights and to be worn in a correct position.

The underpants may be integrally sewn between the outer and inner panty pants.

In addition, the outer surface of the outer panties can form a ventilation region by increasing the fabric through-holes between the yarns constituting the fabric at both leg portions of the center portion in which the endothelial panty is integrally sewn.

In addition, the ventilation area can be formed by either one of the following methods: either the thickness of the fabric is reduced to reduce the number of overlapping of the fabric, the yarn gap of the fabric is increased, or the yarn thickness of the fabric is made thin, The size of the fabric through hole can be formed gradually.

In addition, the ventilation area may be formed by sewing cloths woven at different thread intervals so as to be continuously connected.

In addition, the ventilation area may be formed so as to extend to both the local side of the front surface of the outer surface and the buttocks of the rear surface of the outer surface at the opposite surface of the center portion that is divided by both legs.

In the undergarment-integrated pants according to the present invention,

The inner panty panty which covers the local part and the anus in the inside of the tight pants is made in one body, so that it is possible to wear it conveniently without wearing any underwear.

Particularly, the endothelial panty is formed by a plurality of laminated structures including a volume forming portion, so that even if wearing without wearing any separate underwear, the female local portion can be prevented from being displayed on the outside, and a female training suit, yoga suit It is possible to provide a convenient feeling of wearing.

In addition, it is possible to provide ventilation to the crotch portion by forming a through-hole in both side portions of the thigh close to the inside while maintaining the central portion where the endothelial panty is sewn, and the pulling force of both leg portions, It has become possible to provide a functional pants which is prevented from being lifted and conveyed to the panties to improve the human body adhesion of the endothelium-type panty.

1 is a perspective view showing an undergarment-integrated pants according to an embodiment of the present invention.
2 and 3 are a perspective view and an exploded perspective view showing an endothelial panty according to an embodiment of the present invention;
FIGS. 4A to 4C are perspective views showing a pair of pants having a fastener according to an embodiment of the present invention; FIG.
5A and 5B are perspective views illustrating a stocking type pants having a through hole formed in a crotch portion according to an embodiment of the present invention.
FIG. 6 is a schematic view showing a contact pants having a ventilation area according to another embodiment of the present invention; FIG.
7a to 7f are plan views schematically showing various forms of a ventilation area according to the invention;

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Also, similar reference numerals have been used for like elements in describing each drawing. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing an underwear-integrated pants according to an embodiment of the present invention.

In the present invention, the pants 10 includes pantyhose, a training suit, a yoga suit, a pilates sportswear, a tights, and the like, all of which are in contact with the body in a thin material.

As shown in the figure, the undergarment-integrated pants 10 according to the present invention includes a body portion 21 which closely surrounds a lower portion of a human body including a pelvis, a lower portion of the body, and a body portion 21 integrally connected to the lower portion of the body, (22), and an inner panty (30) which is integrally sewn on the inner surface of the outer surface.

The body part (21) and the leg part (22) are integrally formed on the outer surface (20).

The body portion 21 has a band formed at an upper portion thereof to tighten the waist portion of the human body, and a portion of the waist portion surrounding the pelvis is closely attached to the human body.

The leg 22 may be formed to extend from the bottom of the body to a lower portion of the body so that the legs are inserted into the body, and the knees or the ankles may be formed according to the function of the body.

The inner panty type panty 30 is integrally sewn on the inner surface of the outer surface composed of the body part and the leg part to provide air permeability and absorbency of the panty underwear. The inner panty panty 30 includes a front pad 31, A rear pad 32 which is in contact with the rear anus and a central connection pad 33 which connects the front pad and the rear pad.

The front pad 31 and the rear pad 32 are extended to allow absorption through a wide surface and the central connection pad 33 passes between the two legs of the human body so that the front pad 31 and the rear pad 32 are narrowed .

Therefore, as shown in FIGS. 1 and 2, the endothelial panty 30 is formed of one pad formed long in the front-back direction, and both ends are formed in a wide width to increase the contact surface between the local and the anus, And gradually narrows the width from both ends to the center. At this time, the side connecting the both ends may be formed into a narrow shape so as to be gradually curved in a linear shape or a curved surface with a concave side, or may be formed in various ways such that a certain length is equal in width at both ends, The width of the central portion can be narrowed.

3 is a perspective view illustrating an endothelium-type shorts having a multilayer structure according to an embodiment of the present invention.

The endothelial panty 30 of the present invention has the waterproof layer 34, the volume forming layer 35, the absorbent layer 36, and the face layer 37 integrally with each other in the inward direction from the face contacting the body portion of the outer cover May be stacked.

First, the surface layer 37 is an inner layer, which is a portion in contact with the human skin, so that it provides soft touch and is formed into a surface which is not damaged by repeated absorption with good water absorbency. The surface layer may be formed only in a part formed with a local part or in a form covering the entire body part.

The absorbent layer 36 is a layer that absorbs water absorbed on the surface quickly and absorbs the absorbed moisture continuously. The absorbent layer 36 can be made of natural pulp having excellent water absorbability or can be formed using sodium polyacrylate, which is a polymer absorbent resin. have. However, it is preferable to use natural pulp for use by repeated washing. The thickness of the absorbent layer may be in the range of 0.5 to 2 mm to minimize the increase in the thickness of the endothelium panty by the absorbent layer. Here, if the thickness is less than 0.2 mm, the absorption function is deteriorated. If the thickness is more than 1 mm, the total thickness of the endothelium panty increases.

In case of using as a single unit, a polymer absorbent resin is used to form an absorbent layer, which absorbs the secretion of body secretions including menses and prevents the liquid from being displayed on the outside, thereby temporarily serving as a sanitary napkin.

Here, the absorbent layer 36 may be formed in a detachable form together with the surface layer 37. That is, the absorbent layer and the face layer may be formed in a removable pad shape while integrally forming the absorbent layer and the face layer, and the absorbent layer and the face layer may be replaced at every use.

Alternatively, a space may be formed between the surface layer and the volume-forming layer, and an insertion port may be formed at one side of the space to insert and replace the pad in the form of an absorbent layer.

The volume-generating layer (35) is a layer in which a bulky portion is formed so as not to be exposed to the outside by a close contact even when only a contact type panty using a thin material is worn. The volume forming layer may form a layer on the entirety of the endothelium-type panty 30, or may form a layer only on the front pad portion in contact with the local portion of the human body to form a volume.

The volume forming layer 35 may be formed of various materials, but it is preferable that the volume forming layer 35 is made of a silicone pad that is somewhat elastic and harmless to the human body. When the pad is used as a silicon pad, the volume forming layer 35 is preferably formed to a thickness of 0.3 to 2 mm . At this time, when the thickness of the silicon pad is 0.3 mm or less, the elastic force is low and curvature can be formed by the local part. If the thickness is 2 mm or more, the thickness of the endothelium panty is excessively formed, It is preferable to form it within the above-mentioned range.

In addition, when forming the volume forming layer with the silicon pad, the edge portion of the silicon pad may be formed gradually thinner to prevent the formation of a single layer by inserting the silicon pad, The pad can be partially formed in a net shape so that the inside and outside air can be circulated while maintaining the shape.

The waterproof layer 34 is formed at a portion in contact with the body portion, and is a layer for preventing moisture absorbed in the absorbent layer of the endothelium panty from being discharged to the body portion. The waterproof layer may be formed of various materials capable of providing a waterproof function, such as a layer formed of a synthetic resin or a coating formed on one side of a general cloth to form a barrier. In addition, a cloth having a water-repellent function can be formed so that moisture can not pass therethrough and only air can pass through.

Although the waterproof layer, the bulking layer, the absorbent layer, and the face layer are sequentially laminated, the present invention can provide only the basic local concealing function by forming the endothelium-type panty only with the water-impermeable layer and the absorbent layer and the volume-forming layer and the face layer.

In addition, the present invention can be applied to various types of combinations to form an endothelium-type panty on the basis of the present invention, such as laminating the volume-generating layer on the inner surface of the outer layer without the waterproof layer, then laminating the absorbent layer and the surface layer, can do.

2, the endothelium-type panty 30 further includes a fixing protrusion 38 bent in a V-shape from the central connection pad 33 to the back pad 32, As shown in Fig.

The fixing protrusions 38 are fitted in the corners between the human hips so that they can be seated in a predetermined position, so that the user can prevent the front pads 31 of the endothelium panty from coming off the local portion of the human body during the wearing process have. That is, when the tight pants 10 according to the present invention is worn, the inner panty type panty 30 can be positioned at a predetermined position by the fixing protrusion 38 so that the absorbing function of the underwear and the local and conspiracy concealment functions can be smoothly provided .

The undergarment-integrated pants (10) of the present invention may further include a panty (40).

4A to 4C, the underpants 40 may further be formed between the inner panty pant 30 and the outer pant 20 composed of the body portion and the leg portion. The underpants (40) are formed by integrally sewing underpants on the inner surface of the outer pants (20) and integrally sewing the inner pest (30) on the inner surface of the underpants.

In the sewing method, the entire underpants of the underpants are sewn to the outer pants, or only the underpants and the legs and both sides are partially sewn to form the underpants and the outer pants as one body, and the inner panties are integrally sewn into the underpants .

4A, the legs 40 may be provided with a long-body type covering the leg knee as shown in FIG. 4A, a trunk type covering only the upper leg portion and the body connecting portion as shown in FIG. 4B, and a triangle not covering the leg as shown in FIG. 4C have.

The underpants (40) can hide the outer panties (30) from the outside easily, and increase the sweat absorption rate generated during the exercise process, thereby preventing the outer surface of the local and crotch areas from being wetted with perspiration.

5A and 5B show another embodiment of the present invention.

5A, the present invention is a stocking type trousers. The pants 30 are integrally joined to the inner surface of the outer pant 20, and the inner panty pants 30 are attached to the inside of the thigh, which is both sides of the inner panty panty, A through hole 23 can be further formed in the region.

The through hole 23 formed in the leg portion ventilates the crotch portion and makes the endothelium-like panty located at the center portion between the two legs closely contact the human body.

That is, since the body portion 21 and the leg portion 22 are integrally formed, the pull-tab 20 is pulled in the left-right direction or the back-and-forth direction in the process of widening or walking the two leg portions. Since the pulling force acts in a direction opposite to each other in the pair of legs, the pulling force acts to pull the central portion connecting the pair of legs downward. Due to such pulling force, the outer pants 20 are separated from the local area of the human body, and the endothelium panty 30 sewn to the central portion of the outer surface is also separated from the local area of the human body, It does not provide sufficient absorption and concealment functions.

Therefore, when the through holes 23 are formed in the inner portions of the thighs on both sides except for the center portion connecting the pair of legs as in the present invention, the connection from the legs 22 to the central portion of the body is blocked, The pulling force generated by the pair of legs is not transmitted to the center portion, so that the endothelium-type panty 30 sewn to the center of the outer pant can maintain the adhesion with the human body regardless of the physical activity.

Such a through hole 23 may be formed by directly sewing the inner panty panty on the inner surface of the outer panty, or by further sewing the inner panty 40 between the outer panty and the inner panty panty as shown in Fig. 5B. At this time, the through hole 23 can be formed to penetrate the underpants as well as a part of the underpants and the endothelium pants.

In addition, a resilient band or a finishing material may be added to the end face of the through-hole to perform sewing to maintain the shape of the through-hole to some extent.

Figures 6 and 7a-7f are schematic diagrams illustrating yet another embodiment of the present invention.

6, the outer surface of the undergarment-integrated pants with integral undergarment according to the present invention is a panty-panty which is formed by sewing a fabric through- The ventilation area 24 can be formed by increasing the ventilation area 241.

That is, in addition to the through-hole type in the above-described embodiment, the through-holes formed between the threads of the fabric can be increased to allow ventilation to be performed, and the endothelial panty sewn to the center of the body can be brought into close contact with the body.

The ventilation area may be elongated to both sides of the sewn-in endothelium-type panty, and may be elongated so as to extend to the front and back surfaces around the inner part of the thigh.

At this time, the extension of the ventilation area 24 is extended to both sides of the front part when extended to the front, thereby improving the ventilation of the crotch part and forming the ventilation area along the lower part of the buttocks when extending to the back, You can prevent it from happening. Thus, when the ventilation area is formed to extend in the forward and backward direction, it is possible to minimize the transfer of the pulling force of the leg part of the outsole to the center during the operation, thereby preventing the center line supporting the local area from being moved to one side. The ventilation area may extend either to the front or the rear, or may extend both.

Examples of forming the ventilation area include a method of reducing the number of overlapping of the fabric texture to reduce the thickness, increase the yarn spacing of the fabric, or reduce the thickness of the fabric to a thin thickness, So that the fabric through-hole can be largely formed.

FIG. 7A is an enlarged schematic view of a fabric structure forming a ventilation area. FIG. As mentioned above, the upper portion of the drawing is connected to the upper portion of the drawing, and the degree of overlapping of the fabric is decreased as the lower portion is moved to enlarge the size of the fabric through hole 241. As the number of overlaps increases, the overlapping between the upper layer and the lower layer occurs so that the size of the through-holes communicated with each other becomes smaller than the original size. When the degree of overlapping is reduced, the occurrence of misalignment of the fabric through- So that the fabric through-holes are provided in the original size, thereby increasing the area of the fabric through-holes communicating the inside and outside.

Accordingly, the degree of overlapping of the fabric texture is lowered toward the center portion where the endothelial panty is formed in the leg portion, and the fabric ventilation of the fabric is formed in the crotch portion close to the endothelium pant, thereby improving the ventilation.

In addition, since the fabric is loosely connected between the upper and lower portions in the ventilation area, the elastic deformation rate is high. This is because elastic deformation in the ventilation area occurs when the leg portion of the outer panty is caused to absorb the pulling force generated thereby to prevent the endothelium panty from being transmitted to the center portion where sewing is performed. That is, when the ventilation region capable of elastic deformation is formed, even if the pulling force is generated in the leg portion, the degree of the human body adhesion of the endothelial panty sewn to the center portion can be maintained.

7 (b), the size of the fabric through hole 241 itself may be gradually increased, or the size of the thread opening 241 may be increased as shown in FIG. 7 (c) The thickness of the fabric through-holes can be adjusted by gradually increasing the thickness.

In addition, as shown in FIGS. 7D and 7E, the ventilation area can be formed in a shape that the sizes of the upper and lower portions and the center are different from each other.

Further, as shown in FIG. 7F, the ventilation area can be formed by sewing different materials or cloths woven at different yarn spacings to one or more continuous. In this way, when connecting to a different material than the existing surface, some of the materials used can be used as materials with high elastic strain, while others can be used as materials with high permeability.

The undergarment-type pants 10 of the present invention having the above-described structure of the present invention is constructed such that the inner panty pant 30 is integrally formed on the inner surface of the outer pant 20 and can be worn without wearing any underwear, (38) is formed to provide the convenience of enabling the human body to be worn in the right position.

Further, any one of the layers of the multi-layered endotheliform panty 30 can be formed of the volume-forming layer 35, so that it is possible to prevent the display of the outside of the human body or conspiracy by wearing only a thin material pants, .

In addition, the stocking-type trousers have a through-hole or a ventilation area to absorb the pulling force generated in the leg portion, thereby preventing the deterioration of the human body adhesion of the central portion of the endothelial panty sewn, It is possible to perform the panty function faithfully regardless of the activity of the outer pant.

10: Contact pants
20: Outer
21: body portion 22: leg portion
23: through hole 24: ventilation area
241: Through the fabric
30: Nappy type panties
31: Front pad 32: Rear pad
33: central connection pad 34: waterproof layer
35: a bulky layer 36: an absorbing layer
37: surface layer 38: fixing projection
40: Underpants

Claims (10)

Comprising: a body portion (21) for wrapping a human body portion including a pelvis in close contact; a leg portion (22) integrally connected to the body portion and wrapping both legs closely together;
A front pad 31 which is sewn together on the inner surface of the body of the outer cover and is in contact with a local portion of the front face of the human body, a rear pad 32 which is in contact with the anus of the back of the human body, And a central connection pad 33 having a width narrowed and widened. The fixed connection protrusion 38 bent in a V-shape from the central connection pad to the back pad is inserted into the rib between the hips, An endothelium-type underpant 30 for integrally forming an endo-
The outer surface 20 is formed with a through hole 23 in the inner portion of the thigh which is the both side portions of the inner panty panty in the leg portion 22 so as to improve the air permeability of the crotch portion and the central partial adhesion between the two leg portions All-in-one undergarment pants to make. delete The method according to claim 1,
The endothelial panty (30)
Wherein the inner layer is laminated so as to include a volume forming layer (35) and a surface layer (37) inwardly from the inner surface of the outer layer. The method of claim 3,
The endothelium-type panty further includes a waterproof layer 34 and an absorbent layer 36 and includes a waterproof layer 34, a volume forming layer 35, an absorbent layer 36 and a face layer 37 inwardly from the inner surface of the outer surface Wherein the pants are stacked so that the pants are stacked in such a manner that they are stacked. The method of claim 3,
Wherein the volume-generating layer (35) is a silicon pad. The method according to claim 1,
Wherein the underpants (40) are integrally sewn between the outer surface (20) and the inner surface type panty (30). The method according to claim 1,
The through hole (23) formed in the outer surface
Is provided in a ventilation area (24) which increases the size of the fabric through-holes (241) between the yarns constituting the fabric. 8. The method of claim 7,
The ventilation area (24)
The thickness of the fabric is decreased, the yarn spacing is increased, or the fabric thickness is made thinner by lowering the number of overlaps of the fabric, 241) are formed in different sizes. 9. The method of claim 8,
The ventilation area (24)
And sewing the weaved cloths sewn at different yarn intervals so as to be continuously connected to each other. 8. The method of claim 7,
Wherein the ventilation area (24) is formed to extend to both the local side of the front surface of the outer surface and the buttocks of the rear surface of the outer surface at the opposite surface of the central part that is divided by both legs.

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