JP5405808B2 - Sanitary shorts - Google Patents

Description

  The present invention relates to a sanitary short used by attaching a sanitary absorbent article to an internal crotch cloth.

  In recent years, with the diversification of fashion, various styles of sanitary shorts have been requested. In particular, due to the trend of shallow clothing called “low rise”, there is a demand for a short sanitary shorts corresponding to this. As one of the underwear for low rise, what is called part length (also called boy leg, hip hanger, etc.) that has a low underfoot and a leg mouth (leg opening) in the thigh is popular.

By the way, as one of the conventional techniques of sanitary shorts, the inner crotch cloth to which the napkin is attached is floated from the short side waist opening edge to the abdominal side waist opening edge in a state of floating from the shorts crotch part. There is a sanitary shorts fixed in a shape (see Patent Document 1). These sanitary shorts are deeply called high leg or bikini. In addition, sanitary shorts have also been proposed in which a crotch portion extending from the ventral side of a tubular knitted fabric and a crotch portion extending from the back side are overlapped and manufactured (see Patent Document 2). . Thereby, it is supposed that shorts can be efficiently manufactured only from a series of cylindrical fabrics with cuts, without joining other parts.
In addition, in sanitary shorts with leg bands all around the foot mouth along the thigh, the crotch length from the internal crotch to which the sanitary napkin is attached to the waist and the shortest part from the underwear to the waist The height ratio of the body is 80 to 200 with respect to the crotch length of 100, and the rear body is provided with a lifting elastic member from the internal crotch portion to the waist. (See Patent Document 3). This shorts makes it difficult for the leg band to bite into the crotch.
JP-A-8-299386 JP 2008-73235 A Japanese Patent Laid-Open No. 2002-660

In the case of some shorts, wearing a sanitary napkin with wings is difficult. That is, since the leg opening is in the thigh and the inseam from the crotch to the hem is long, the wing of the napkin cannot be folded here, which is actually impossible. Therefore, in order to be able to use a napkin with a wing in a part of shorts, it is necessary to provide an internal crotch cloth in which the wings fit inside the shorts by doubling the crotch part. On the other hand, in some short-length shorts, the inner crotch cloth attached to the base of the crotch is attached, and unlike the conventional bikini style, the attached sanitary napkin has a large displacement and twist, resulting in a decrease in wearing comfort It has been found that this leads to This was thought to be due to the fact that the leg movement was directly transmitted to the crotch part because the leg opening was in the thigh (this point will be described in detail later with reference to FIG. 5).
In view of the above points, the present invention provides a sanitary short with a leg opening in the thigh, and there is little displacement of a sanitary napkin or the like when worn, and the shape can be stably held. An object of the present invention is to provide a sanitary short having a good wearing feeling and capable of preventing the absorption of the sanitary napkin from being absorbed and the short from being stained.

  An object of the present invention is a sanitary short having a waist opening and a pair of leg openings located on the thigh when worn, and the body of the short is a tubular waist without a stitch covering the waist of the wearer A circular knitted fabric and an inseam cloth, and further, an internal crotch cloth is attached to the inside of the main body at a position overlapping the inseam cloth, and the internal crotch cloth is on either the back side or the abdomen side This was achieved by using sanitary shorts joined to the waistline circular knitted fabric at a predetermined distance above the position where the inseam cloth and the waistline circular knitted fabric were joined.

According to the present invention, in a sanitary short having a leg opening at the thigh, the fixed state of an absorbent article such as a sanitary napkin attached to an internal crotch cloth is suppressed while suppressing the influence of leg movement. It can be maintained, has a good wearing feeling, and prevents sanitary napkins from absorbing leakage and shorts from being damaged.
Further, when a crotch part having a double structure of an internal crotch cloth and an inseam cloth as in the present invention is provided, even if a waistline fabric manufactured by circular knitting is used for a shorts waistline part, there is no sewing around the waistline. In addition, it has an excellent wearing feeling, especially when the napkin is attached, even when the crotch part is stretched or twisted, it has the effect that the clean feeling of the waistline is maintained, and there are few manufacturing processes in terms of manufacturing This makes it possible to produce products with excellent fit and the like.

Hereinafter, the present invention will be described in detail.
FIG. 1 is a perspective view schematically showing a shape of a sanitary short according to a preferred embodiment of the present invention as viewed from the back. The sanitary shorts of the present embodiment are a shorts body 1 having a waist opening 2 and a pair of leg openings 3 with a waistline circular knitted fabric 6 and a crotch cloth 7 joined thereto. And the inner crotch cloth 8 is joined and attached to the position which overlaps with the crotch cloth 7 inside the shorts body 1 at the front side and the back side rear side of the body 1 (in the present invention, the cloth pieces overlap) It means that there is at least a partial overlap in the direction perpendicular to the surface direction of both pieces of cloth, and it is preferable that there is an overlap in the main part of both pieces of cloth.) The inner crotch cloth 8 is joined to a position 32 above the position 22 where the crotch cloth 7 is joined to the waistline circular knitted fabric 6 by the interlock cut-off interval a, that is, a position 32 on the waist opening side. The interlocking cut-off interval a is also shown in FIG. 2, but in the worn state, the cloth at the time of wearing from the joining position 22 of the inseam cloth 7 to the waist circular knitted fabric 6 to the joining position 32 of the internal crotch cloth 8 in the back portion. Defined as distance. Although this interlocking | blocking interruption | blocking space | interval a is not specifically limited, 2-20 mm is specifically preferable, and 5-15 mm is more preferable. In this embodiment, the interlock cut-off distance a is provided on the back side, but it may be on the ventral side.

  2 is a cross-sectional view taken along the line II-II of the sanitary shorts shown in FIG. Explaining the relationship with the body part in the wearing state, the waist opening 2 is positioned at the height of the iliac crest 16 and below the navel 11. Thus, it is preferable that the waist opening is positioned lower than that of a normal pants type so that it does not protrude even if it is combined with low-rise pants. The sanitary shorts 10 according to this embodiment covers the abdomen from the right inguinal part to the left inguinal part via the lower abdomen (pubic part), and the back part is attached so as to cover the buttocks on the back side. At this time, the leg opening (see FIG. 1) is located above the thigh 15. Further, in the vicinity of the wearer's midline, the waist circumference circular knitted fabric 6 comes into contact with the pubic hill at the pubic abutment portion 12 and comes into contact with the anus at the anus contact portion 14. In addition, the internal crotch cloth 8 can come into contact with the vaginal opening at the vaginal opening contact portion 13, and a sanitary napkin can be attached here to appropriately absorb excretion such as menstrual blood. As will be described later, the crotch cloth 7 is joined to a portion where a cylindrical waist-circular knitted fabric 6 is cut out, and is formed between a front joining position 21 and a rear joining position 22 to constitute a crotch part of the shorts body 1. (See FIG. 3). The inner crotch cloth 8 is joined at the same position 31 as the front joining position 21 of the crotch cloth 7 on the front side (see FIG. 2), and above the rear joining position 22 of the crotch cloth 7 on the rear side, that is, an anus contact. Joined at a rear joining position 32 near the portion 14.

  FIG. 3 is a perspective view further schematically showing the assembly configuration of the shorts body 1 of the present embodiment. The main body 1 of the sanitary shorts according to the present embodiment is composed of the cylindrical waistline (body) circular knitted fabric 6 and the crotch fabric 7 as described above. First, the cylindrical fabric of a predetermined length by the circular knitting machine. Is made, and the waist circumference circular knitted fabric 6 is made. An inverted U-shaped cut 9 is made at a desired depth corresponding to the crotch dimension at a position to be a crotch portion of the fabric, and a crotch cloth 7 bent into an inverted U-shape is joined to the cut portion. At this time, the abdominal side joining line 21a of the crotch cloth 7 and the abdominal side joining line 21b of the waistline circular knitted fabric 6 are joined, and the back side joining line 22a of the crotch cloth 7 and the backside joint line of the waistline circular knitted fabric 6 are joined. 22b is joined. It is preferable that the waist opening edge 2a and the leg opening edge 3a at which the fabric is knitted and finished are processed into a bag shape (knit-in). When the edge is knit-in, the skin feel is improved.

  The crotch cloth 7 joined in this way forms an inverted U-shaped or ribbed shape that is convex toward the wearer's head at the crotch when worn. In this embodiment, in this configuration, the inseam cloth 7 is separated from the internal crotch cloth 8 by the interlocking cut-off interval a, and does not adhere as a movement, and it is difficult to convey the movement of the foot to the internal crotch part. Although the internal crotch cloth 8 is not shown in FIG. 3, the front crotch cloth 8 is attached to the body together with the crotch cloth 7 only on the front side of the stomach side so as to be above the crotch cloth 7 (skin side when worn). After the crotch cloth 7 is joined to both the front and back, the back of the internal crotch cloth is joined to the cloth below the hips in the body above the joining position of the crotch cloth.

  In the present embodiment, the inner crotch cloth 8 is attached to the waistline circular knitted fabric 6 so that the cloth becomes substantially straight when not worn from the front joining position 31 to the rear joining position 32 by selecting the length of the cloth. It is preferable. And when worn, it is preferable to draw a gentle curve along the line of the body. Since the internal crotch cloth 8 does not adhere too much to the crotch cloth 7 when worn as a result of being substantially straight when not worn, the internal crotch cloth even if the crotch cloth 7 moves when the foot moves. 8 can be reduced. Moreover, by doing in this way, the attached sanitary napkin or the like functions to closely adhere to the skin. A sanitary napkin or the like is fixed on the internal crotch cloth without being bent, and is held in a stable shape, thereby providing good support. When worn, the sanitary napkin or the like is mounted on the inner crotch cloth, but when there is a wing, it can be fixed between the back of the inner crotch cloth and the crotch cloth.

The sanitary shorts of the present embodiment prevents the sanitary absorbent article from being twisted or displaced without obstructing the movement of the foot at the leg opening in the thigh and also due to the movement of the foot. Here, the influence of the movement of the foot on the first crotch part and the internal crotch cloth will be described with reference to FIG.
FIG. 4 is a plan view of the sanitary shorts as viewed from the crotch. When the wearer walks, the right foot 51 moves backward (arrow 53) and the left foot 52 moves forward (arrow 54), and the crotch cloth 7 is largely pulled in the directions of arrows 55 and 56 as the shorts body. In this way, the crotch cloth 7 is pulled in a complicated manner, so that wrinkles and twists are generated in a complicated manner. However, by connecting the rear joining position 32 of the internal crotch cloth 8 away from the rear joining position 22 of the crotch cloth 7 by the interlocking cut-off interval a, the inner crotch cloth 8 is less likely to transmit the force applied to the crotch cloth 7. ing.

  FIG. 5 is a modeled perspective view for explaining the non-interlocking state between the crotch cloth and the internal crotch cloth when the sanitary shorts of the present embodiment are worn. In FIG. 5, the crotch cloth 7 is shown as a saddle surface having a transverse main curvature surface 25 and a longitudinal main curvature surface 26 which are shapes almost when worn. If the transverse main curvature surface 25 is a convex surface having a curvature in the negative (B) direction, the longitudinal main curvature surface 26 can be regarded as a concave surface having a positive (U) curvature. That is, the saddle face shape is a surface formed by intersecting two arcs having the center point of curvature in opposite directions at the arc vertices so as to face each other and extending both arcs without contradiction. On the other hand, an internal crotch cloth is shown by a one-dot chain line. However, the shape of the crotch cloth 7 and the inner crotch cloth 8 shown in FIG. 5 is a modeled representation of the tension state or force action when not worn, and the inner crotch cloth 8 is a substantially straight partial cylinder. It is shown as.

  In FIG. 5, the crotch cloth 7 is joined to the waistline fabric (not shown in FIG. 5) at the front joint portion 21 and the rear joint portion 22, 23 is a part of the leg opening for the left foot, and 24 is Form part of the leg opening for the right foot. The direction of the force applied with the left foot in front when walking is indicated by arrows 41 to 44. The direction of the force pulling the crotch part with the right and left feet is reversed. A force in the opposite direction is applied in the vicinity of the leg opening portions 23 and 24, but both forces are combined in the upper portion of the heel surface, resulting in complicated torsion. For example, the force indicated by the arrows 42 and 44 is applied to the main point for receiving the sanitary napkin indicated by the crotch center A, and the direction is actually not only the major axis direction indicated by X but also the Y direction (width direction). The distortion components are combined and drowned as if squeezed. In this way, arrows of various directions and various strengths are combined, and a complex force that is difficult to simulate is applied to the crotch center A. On the other hand, the internal crotch cloth 8 in the present embodiment is provided separately from the crotch cloth 7, and the back rear end is joined by a rear joint 32 at a position under the hip where the movement of the foot is less affected. The napkin is prevented from slipping and shifting due to the movement.

In the sanitary shorts of the present invention, it is preferable that the rise is shallow, and the waist opening is close to the line connecting the iliac crest. The leg opening is located on the thigh. For example, specifically, the crotch portion h (see FIGS. 1 and 2) is preferably 13 to 20 cm, and more preferably 15 to 18 cm. The crotch part 1 (see FIGS. 1 and 2) is preferably 1 to 7 cm, and more preferably 2 to 5 cm.
The ratio between the height and the width is preferably 1: 1 to 1: 1.7, and more preferably 1: 1.1 to 1: 1.5 as (h + 1): w (see FIG. 1).

  The waistline fabric that is knitted in a tubular shape should be easier to stretch in the height direction (waist opening up and foot mouth down) on the back side than on the abdomen front side. Is preferred. The front is a knitted structure with small stretch (longitudinal stretch) in the height direction, which stabilizes the front length and can firmly support the stomach. Also, from the side to the hip, it is a knitted structure with a large longitudinal stretch, which can cope with the hip surface area that varies greatly with exercise. Furthermore, when the back body extends sufficiently in the vertical direction, the foot and mouth are stabilized, and a three-dimensional foot and mouth line that makes it easy to put the foot forward is created.

  In a circular knitting machine, operations such as partially using highly stretchable yarns can be easily performed, which is suitable for manufacturing such a fabric. The rear body is particularly preferably one that is three-dimensionally adjusted to fit the bulge of the buttocks. At this time, the form which has a high expansion-contraction site | part with a high stretchability of a height direction rather than both sides in a center part in the back part back side, ie, a buttocks elastic band part, is preferable. For example, in the embodiment shown in FIG. 1, a heel elastic band portion 5 that is less stretchable than the both sides on the back side is provided at the center of the back side of the waistline circular knitted fabric 6. By doing in this way, the napkin is pulled up at the time of wearing, and it is appropriately pressed against the crotch part with a stable shape. In addition, the sanitary shorts fit the buttocks and the wearing feeling is good. As another form, a thing which gave the stitch which stops expansion / contraction over the upper and lower sides along a crack at the time of wearing in the center of the back body is also preferable because the lifting effect of the napkin appears. In conventional sanitary shorts, with the aim of such a lifting effect of the napkin, a method such as sewing an elastic tape on a portion along the crack at the time of wearing has been taken. On the other hand, since another member is not used in the present invention, unevenness and a hard part are not formed around the trunk of the shorts, and the wearing feeling is not reduced. Since a separate member joining step is not required, it is advantageous in manufacturing.

  The elongation ratio of the internal crotch cloth is preferably smaller than the width direction (direction perpendicular to the longitudinal direction) in the longitudinal direction (direction from the front side to the back side). By setting it as such an elongation rate, a sanitary napkin can be contact | adhered moderately to skin, without reducing a feeling of mounting | wearing. The elongation at the time of 500 g load is preferably 15 to 45%, more preferably 20 to 40% in the longitudinal direction. The difference in elongation between the longitudinal direction and the width direction is preferably 10 to 50%, more preferably 20 to 40%.

It is the perspective view which showed typically the shape which looked at the sanitary shorts of preferable embodiment in this invention from the back surface. It is sectional drawing of the II-II sectional view of the sanitary shorts shown in FIG. It is the perspective view further modeled and shown in order to demonstrate the assembly structure of the shorts main body 1 of this embodiment. It is the top view which looked at the state which has worn sanitary shorts from the crotch. It is the modeled perspective view for demonstrating the non-interlocking state of a crotch cloth and an internal crotch cloth when the sanitary shorts of this embodiment are mounted | worn.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shorts main body 2 Waist opening part 3 Leg opening part 5 Hip elastic band part 6 Girth round circular knitted fabric 7 Crotch cloth 8 Internal crotch cloth 9 Cut 10 Sanitary shorts 11 Umbilical 12 Umbrella contact part 13 Vaginal opening contact part 14 Anus contact part 15 Thigh 16 Iliac crest 21 Crotch cloth front joint part 22 Crotch cloth rear joint part 23, 24 Leg opening part 25 Transverse main curvature surface 26 Longitudinal main curvature surface 31 Internal crotch cloth front joint part 32 Internal crotch cloth rear part Joint 51 Right foot 52 Left foot

Claims (5)

A sanitary short having a waist opening and a pair of leg openings located on the thigh when worn, and the body of the short is a tubular waist-circular knitted fabric without a seam covering the waist of the wearer A crotch cloth, and an inner crotch cloth is attached to a position overlapping the crotch cloth inside the main body, and the attachment position of the back of the inner crotch cloth with the waistline circular knitted fabric is , A rear joint position near the upper anus contact portion with a predetermined interval from the joint position between the crotch cloth and the waistline circular knitted fabric ,
The sanitary shorts in which the elongation rate in the longitudinal direction of the internal crotch fabric is smaller than the elongation rate in the width direction . The inner crotch cloth claim 1 Symbol mounting of sanitary panty is joined to the waist circular knitting molding fabric to form a linear junction line in the dorsal posterior. The stretchability in the length direction of the dorsal side fabric of the waist circumference circular knitted fabric is higher than that in the ventral side fabric, and the stretchability in the longitudinal direction of the crotch fabric from the ventral side to the back side of the internal crotch fabric is The sanitary short according to claim 1 or 2 , wherein the sanitary short is lower than the stretchability of the dough on the back side. The sanitary short according to any one of claims 1 to 3 , further comprising a buttocks elastic band portion having a lower stretchability in a body length direction than both sides on the back side, in the center of the back side of the waistline circular knitted fabric. The sanitary short according to any one of claims 1 to 4 , wherein the crotch cloth has a ridge shape along the thigh from the wearer's crotch when worn.

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