JP5917961B2 - Disposable wearing items - Google Patents

Description

  The present invention relates to a disposable wearing article, for example, a disposable wearing article such as a diaper and a diaper cover that can be worn even when the front-rear direction is reversed.

When wearing disposable wear items such as diaper covers that use pants-type diapers and urine pads, etc., there are front and rear directions as in normal pants, and if the wearing direction (front and rear direction) is incorrect, diapers or diapers The function as a cover could not be demonstrated, the feeling of wearing was bad, and excrement etc. leaked. For this reason, some worn articles such as diapers and diaper covers have a display indicating the mounting direction (front-rear direction).
However, such a display is difficult for an elderly person to visually recognize, and for a caregiver, there is troublesome work while confirming the front-rear direction of a worn article such as a diaper or a diaper cover.

As a solution to such a problem, a diaper shown in Patent Document 1 has been proposed. The diaper disclosed in Patent Document 1 is shown in FIG. 7 and will be described with reference to FIG.
As shown in FIG. 7, the leg periphery 51 of the diaper 50 is a stretchable affixed to the main body 52 so as to extend from the leg periphery opening end 52 a of the main body 52 to the leg periphery opening. A leg-surrounding sheet 53 is provided.
And the shape of the leg periphery opening end part 52a of the main body part 52 is formed in a shape that fits around the leg on the abdominal side, and the abdominal side part 50A across the center line M in the length direction of the main body part 52. It is formed substantially symmetrically with the back side portion 50B.

On the other hand, the end 53a that forms the free end of the leg-surrounding sheet 53 is formed in a shape that fits around the back leg, that is, a shape that covers the buttocks of the wearer. Further, the leg-opening end portion is formed by the free end portion 53 a of the leg-around sheet 53.
Here, the free end portion 53a that forms the leg-opening end portion has the wearer's buttocks at the ventral portion 50A and the dorsal portion 50B, with the center line M in the length direction of the main body 52 interposed therebetween. It is formed in a shape sufficient to cover, and is formed in a substantially symmetric shape between the ventral side portion 50A and the back side portion 50B across the center line M.
That is, the leg periphery 51 includes a leg periphery opening end 52a having a shape that fits around the ventral leg and a leg periphery opening end 53a having a shape that fits around the back leg and covers the buttocks. It is comprised so that two different shapes may be provided simultaneously.

Thereby, in the leg periphery opening part 52a which hold | maintains the wearer's abdominal leg periphery at the time of mounting | wearing, it fits by the leg periphery sheet | seat 53 which has a stretching property shrink | contracting along the shape of the abdominal leg periphery. . On the other hand, in the leg periphery opening 53a that holds the periphery of the leg on the wearer's back side, the leg periphery sheet 53 having elasticity stretches and spreads to fit and fit the wearer's buttocks.
In this way, the diaper 50 can be worn in either a forward or backward orientation, so that it is not necessary to make a judgment before and after the diaper at the time of wearing, and the labor of the wearer and caregiver can be reduced. it can.

JP 2005-287699 A

By the way, the shape of the leg periphery opening end portion 52a of the main body portion 52 of the diaper described in Patent Document 1 is formed in a shape that fits around the ventral leg, and the shape that fits around the back leg. Not formed. For this reason, the leg-hole opening end 52a of the main body 52 hits the wearer's buttocks in a diagonally vertical direction on the back side, which may cause discomfort to the wearer.
Moreover, even if it is made to wrap the wearer's buttocks by extending and spreading the leg-surrounding sheet 53, there is a possibility that a good wearing feeling cannot be obtained and excrement may leak.
Further, on the abdomen side, the leg-surrounding sheet 53 having stretchability contracts substantially along the shape of the abdominal leg-surrounding, so that the leg-surrounding sheet 53 is sandwiched between the wearer's ridges, There was a technical problem of giving a sense of incongruity.

  The present invention has been made in order to solve the above-described problems, and can be worn from either the forward or backward direction, has less discomfort and discomfort during wearing, and prevents excrement leakage. The object is to provide a disposable wearing article.

A disposable wearing article according to the present invention, which has been made to solve the above-mentioned problems, is provided on the left and right sides of the exterior sheet, covering an exterior sheet that covers the waist part from the hip part to the back part from the waist part on the wearer's front waist part Left and right leg openings formed symmetrically in the longitudinal direction by the left and right bay entrances, and from the waist of the exterior sheet to the vicinity of the left bay entrance and the right bay entrance in the width direction of the exterior sheet A waistline elastic member that extends and forms a waistline gather; and a legliner elastic member that is disposed along the edge of the left and right bay entrances and forms a leg gather that is symmetrical in the front and rear direction in each of the left and right leg openings; Further, an absorbent body disposed on the inner surface side of the exterior sheet, and a center line in the width direction of the exterior sheet between the exterior sheet and the absorbent body inside the left bay entrance. In A first crotch elastic member made of a plurality of elastic members extending in a row, and a center in the width direction of the exterior sheet between the exterior sheet and the absorber inside the right bay entrance. A second crotch elastic member made of a plurality of elastic members extending in parallel to the line, and the leg elastic member around the left bay entrance and the leg elastic member around the right bay entrance, The first and second crotch elastic members are not connected to each other, and the end portions on the center line side in the width direction of the exterior sheet in the leg elastic members in the left and right bays are the first or The intersection between the center line in the width direction of the exterior sheet and the center line in the longitudinal direction of the exterior sheet in a state where the exterior sheet is unfolded at a position adjacent to or overlapping with the second crotch elastic member. And a straight line connecting the ends of the left and right bay entrances, and Longitudinal angle formed between the center line of the instrumentation sheet is characterized in that that will be formed below 30 degrees.

Generally, when the front shape of the worn article is made to be a shape corresponding to the buttock shape so that a disposable worn article such as a pants-type diaper or a diaper cover can be worn from either the front-facing direction or the rear-facing direction. , A gap is generated in the scissors, and leakage is likely to occur.
On the other hand, if the rear shape (back shape) of the worn article is made to be a shape corresponding to the collar portion, the collar portion cannot be wrapped, and the edge portion of the leg opening of the worn article hits so as to cross the collar portion obliquely in the vertical direction. , Discomfort and discomfort to the wearer.

  In the disposable wearing article according to the present invention, each of the left and right leg openings formed by the left bay entrance and the right bay entrance is formed symmetrically in the front-rear direction, and the exterior sheet is deployed in the width direction of the exterior sheet. The angle formed by the intersection between the center line and the longitudinal center line of the exterior sheet, the straight line connecting the ends of the left and right bays, and the longitudinal center line of the exterior sheet is formed to be 30 degrees or less.

Thus, a straight line connecting the intersection of the center line in the width direction of the exterior sheet and the center line in the longitudinal direction of the exterior sheet and the end of the left and right bays, and the length direction (vertical direction) center line of the exterior sheet, By making the angle formed by 30 degrees or less, the exterior sheet corresponding to the ridge portion can be pulled in the left-right direction by the elastic stress (elastic force) of the waist elastic member and the leg elastic member. The gap can be suppressed as much as possible, and the elastic force of the elastic member around the leg of the leg opening acts to press the worn article against the thigh. For this reason, it can wrap the whole front and back waist part regardless of which direction it is before and after, and can suppress the leakage of excrement. In addition, the discomfort and discomfort of the buttocks can be eliminated without hitting the wearer's buttocks in a diagonally vertical direction.

  Also, the first crotch elastic member formed inside the left bay entrance and parallel to the center line in the width direction of the exterior sheet, and the inside of the right bay entrance, and in the exterior sheet width direction A second crotch elastic member formed in parallel to the center line, wherein the left bay elastic part and the right bay elastic part are the first and second crotch parts, respectively. It is not formed between the elastic members, and an end portion on the center line side in the width direction of the exterior sheet in the elastic member around the legs of the left and right bays is adjacent to the first and second crotch elastic members It is desirable to form in the position to overlap or the position to overlap.

  If comprised in this way, since the expansion-contraction force of the exterior sheet | seat width direction by the leg periphery elastic member of a right-and-left bay entrance part does not act on a crotch part, the parallel of the 1st, 2nd crotch elastic member is maintained until it wears. And after wearing, it fits according to the body shape of a wearer's front and back crotch part, and a position shift and leakage of a wearing article are controlled.

  Further, the first and second crotch elastic members extend in a direction perpendicular to the extending direction of the waist elastic member, and the end portions thereof are disposed in the vicinity of or intersect with the waist elastic member, and The first and second crotch elastic members are each composed of a plurality of elastic members, and each of the first and second crotch elastic members is preferably formed to have a width of 10 mm to 40 mm.

As described above, the first and second crotch elastic members extend in a direction perpendicular to the extending direction of the waist elastic member, and the end portions thereof are disposed in the vicinity of or intersecting with the waist elastic member. .
Therefore, when the wearing article is mounted, the first and second crotch elastic members are expanded by the waist elastic member, the crotch portion of the exterior sheet is expanded in the width direction, and the wearer's front and back crotch portions after wearing It fits to the body shape and prevents the displacement and leakage of the worn article.
In addition, when the width of the first and second crotch elastic members is less than 10 mm, the width for pressing the side portions of the urine pad and the absorbent body to the body is small, and excrement and the like leak, which is not preferable. On the other hand, when the width exceeds 40 mm, it is not preferable because the width to be crimped to the body is equal to or greater than the crotch width when the left and right are combined.

Further, the first and second crotch elastic members extend in a direction perpendicular to the extending direction of the waist elastic member, and the end portions thereof are disposed in the vicinity of or intersect with the waist elastic member, and The first and second crotch elastic members are each composed of a plurality of elastic members, and the elastic force of the innermost elastic member in the first and second crotch elastic members is located on the outermost side. It is desirable that it is larger than the elastic force of the elastic member.
Since it is comprised in this way, when mounting | wearing a diaper, while extending the said exterior sheet | seat in the width direction, the edge part of the said exterior sheet | seat is made to bend outside. Furthermore, since the crotch elastic member is orthogonal to the waist elastic member, even if the wearer's force is weak and the wearing method is shallow, the force to pull up the worn article works, and the outer sheet and the absorber are worn by the wearer. It can be crimped to the body to prevent excrement from leaking.
In addition, when the end portions of the first and second crotch elastic members are arranged at positions where they intersect with the waist elastic member, the cylinder is interposed between the first and second crotch elastic members. It is desirable that the surrounding elastic member does not exist or that the waist surrounding elastic member is cut so that there is no elastic force in the width direction of the exterior sheet.
Since it is configured in this manner, the exterior sheet is expanded in the width direction (easy to expand between the first and second crotch elastic members), and fits the wearer's body shape after wearing, and is worn Misalignment and leakage of articles are suppressed.

In addition, it is desirable that either one of the left and right joints of the left and right edges of the exterior sheet is joined so as to be openable and closable.
As described above, since either the left or right of the joint portions at the left and right edges of the exterior sheet is joined so as to be openable and closable, attachment or removal can be easily performed.
For example, even if the left or right limb has paralysis, the paralyzed foot can be passed through the joint that can be opened and closed, and can be easily attached and removed with one hand. Moreover, since there is no distinction between before and after, the user can select whether to open or close the left side or the right side with one product. Conventionally, there are wearing articles that can be opened and closed on both the left and right sides for wearers who are handicapped, but it is necessary to hold with both hands when wearing, so wearing with one hand was difficult . For this reason, assistance was often required at the time of wearing.

  According to the present invention, it is possible to obtain a disposable wearing article that can be worn from either a forward or rearward direction, has less discomfort and discomfort at the time of wearing, and prevents leakage of excrement.

FIG. 1 is a development view showing a state where the inside of a disposable wearing article (diaper) according to the present invention is developed so as to be an upper surface. 2 is a cross-sectional view taken along the line II of FIG. FIG. 3 is an enlarged view of a main part of the diaper of FIG. FIG. 4 is a front view showing a state in which the diaper of FIG. 1 is assembled. FIG. 5 is a cross-sectional view illustrating the state of the crotch portion, for explaining the wearing state of the diaper according to the present invention. 6A and 6B are schematic cross-sectional views for explaining the positional shift of the diaper according to the present invention, in which FIG. 6A is a diagram showing a normal state, and FIG. . It is an expanded view which shows the conventional disposable wearing article (diaper).

About the disposable wearing article concerning this invention, in description of the following embodiment, the trunks type diaper with which the absorber was incorporated is demonstrated as an example.
As shown in FIGS. 1 and 2, a trunks-type diaper 1 according to the present invention includes an exterior sheet 2 in which one sheet or a plurality of sheets are stacked, and an absorbent body 3 disposed on the inner surface of the exterior sheet 2. And. Further, a top sheet 12 is formed on the upper surface of the absorber 3, and a three-dimensional gather 13 is formed on both sides of the upper surface of the absorber 3. An intermediate sheet 14 is formed between the exterior sheet 2 and the absorber 3. In FIG. 1, the three-dimensional gather 13 is not shown.

Here, the exterior sheet 2 is a water-permeable and breathable sheet material, and specifically, from chemical fibers such as polyethylene, polypropylene, polyester, nylon, and rayon, and natural fibers such as cotton and cellulose. A non-woven fabric, a film, or a mixed fiber in which the above materials such as a mixed non-woven fabric of polyethylene and polypropylene are appropriately combined may be used.
The absorbent body 3 is formed of, for example, a combination of a defibrated pulp, a nonwoven fabric, a film, and the like and a water-absorbing polymer, or a mixture of a thermoplastic resin, cellulose fiber, and a water-absorbing polymer. Moreover, what covered this with the absorption paper, the nonwoven fabric, etc., and said structure may overlap and may be comprised.
Furthermore, the surface sheet 12 is conventionally used as a surface material for absorbent articles such as liquid-permeable sheets, for example, woven fabrics made of natural fibers, nonwoven fabrics made of synthetic fibers, or opening films made of thermoplastic resins. Things are used. Moreover, you may be comprised from the said some sheet | seat.
Further, as the three-dimensional gather 13 and the intermediate sheet 14, a sheet such as a water-impervious or water-repellent nonwoven fabric or film usually used for disposable diapers is used.

Further, as shown in FIG. 1, a waist elastic member 4a is provided at the upper end of the exterior sheet 2 of the trunks-type diaper 1, and a waist elastic member 4b is provided at the lower end of the exterior sheet 2. ing. Further, a waist elastic member 5a is provided below the waist elastic member 4a, and a waist elastic member 5b is provided above the waist elastic member 4b.
The waist elastic members 4a and 4b and the waist elastic members 5a and 5b are one waist elastic member and one waist elastic member when assembled as shown in FIG. Function. The waist elastic members 4a and 4b and the waist elastic members 5a and 5b are made of elastic members such as thread rubber, flat rubber, and urethane film, for example.

In addition, a left bay entrance 6 and a right bay entrance 7 are formed at the left and right ends of the exterior sheet 2. The left bay entrance 6 and the right bay entrance 7 form left and right leg openings A and B when assembled as shown in FIG.
As shown in FIG. 1, the waistline elastic members 5 a and 5 b are formed to the vicinity of the left bay entrance 7 and the right bay entrance 8. Therefore, the waist elastic members 5a and 5b are arranged from the waist to the heel on the abdomen side, and from the waist to the buttock on the back side.

Further, the left bay entrance 6 and the right bay entrance 7 are symmetrical with respect to the center line M1 in the width direction of the exterior sheet 2 in a state where the exterior sheet 2 (diaper) is unfolded as shown in FIG. Is formed. Further, the left bay entrance 6 and the right bay entrance 7 have the longitudinal center line M2 (center line orthogonal to the center line M1) of the exterior sheet 2 as a boundary in a state where the exterior sheet 2 (diaper) is unfolded. Are formed symmetrically (vertically symmetrical).
That is, the upper portion 6a of the left bay entrance and the lower portion 6b of the left bay entrance in the left bay entrance 6 are formed symmetrically, and the upper portion 7a of the right bay entrance and the lower portion 7b of the right bay entrance are It is formed symmetrically.
Furthermore, the upper part 6a of the left bay entrance in the left bay entrance 6 and the upper part 7a of the left bay entrance in the right bay entrance 7 are formed symmetrically, and the lower 6b of the left bay entrance in the left bay entrance 6 and the right The bay entrance 7 is formed symmetrically with the lower portion 7b of the left bay entrance.

  Therefore, the left and right leg openings A and B formed by the left bay entrance 6 and the right bay entrance 7 are formed so as to be bilaterally symmetric, and the front and rear of each of the left and right leg openings A and B are also symmetric. It is formed to become.

  Further, leg elastic members 8 a and 8 b are formed along the edge of the left bay entrance 6, and similarly leg leg elastic members 9 a and 9 b are formed along the edge of the right bay entrance 7. Each of the leg elastic members 8a and 8b and the elastic members 9a and 9b is composed of three elastic members.

  Further, the leg elastic members 8a and 8b are arranged symmetrically with respect to the center line M2. The leg elastic members 9a and 9b are disposed symmetrically with respect to the center line M2. Further, the leg elastic members 8a and 9a are disposed symmetrically with respect to the center line M1. The leg elastic members 8b and 9b are arranged symmetrically with respect to the center line M1.

Thus, since the leg-holes elastic members 8a and 8b are formed in the left bay entrance part 6 and the leg-holes elastic members 9a and 9b are formed in the right bay entrance part 7, the outer sheet 2 (diaper) is unfolded. The left bay entrance 6 and the right bay entrance 7 are formed with symmetrical leg gathers. The leg gathers formed in the left bay entrances 6 and 7 are formed symmetrically in the front-rear direction.
The left and right leg openings A and B are surrounded by the leg gathers, and the leg gathers (leg elastic members 8a, 8b, 9a and 9b) cause the left and right leg openings A and B to be in close contact with the wearer (crimping). ) And excrement etc. are not leaked.

  In addition, although the case where each of the leg elastic members 8a, 8b, 9a, and 9b is composed of three elastic members has been described, the invention is not limited to this, and the leg elastic members 8a, 8b are not particularly limited thereto. , 9a, 9b may be a plurality of elastic members.

Moreover, the elastic member 8a of the left bay insertion part 6 and the elastic member 9a or the elastic member 9b of the right bay insertion part 7 are not connected and formed. Moreover, the elastic member 8b of the left bay entrance 6 and the elastic member 9a or the elastic member 9b of the right bay entrance 7 are not connected to each other.
In this way, the elastic members 8a, 8b of the left bay entrance 6 and the elastic members 9a, 9b of the right bay entrance 7 are not connected to each other. 9b, the crotch part of the exterior sheet 2 (diaper) generates a stretching force in the width direction, wrinkles at the center of the crotch part, and gives the wearer a feeling of discomfort and discomfort when sitting.

  Furthermore, the shape of the upper part 6a and the lower part 6b of the left bay entrance part in the left bay entrance part 6 and the upper part 7a and the lower part 7b of the left bay entrance part in the right bay entrance part 7 will be described based on FIG. In addition, since the shape of the upper part 6a of the left bay entrance part, the lower part 6b, the upper part 7a of the right bay entrance part 7, and the lower part 7b is the same shape, it demonstrates taking the upper part 7a of the right bay entrance part 7 as an example.

  As shown in FIG. 3, in the state where the exterior sheet 2 (diaper) is unfolded, the intersection of the center line M1 in the width direction of the exterior sheet 2 and the center line M2 in the longitudinal direction of the exterior sheet 2 is defined as O. The angle θ1 formed by the straight line OT1 connecting the end portion (outer edge portion) T1 of the right bay insertion portion 7 in the width direction of the exterior sheet 2 and the center line M2 is formed to be 30 degrees or less.

If the shape of the front and back of the diaper is a shape corresponding to the shape of the buttock so that the diaper can be worn from either the front or the rear, the gap at the front of the diaper is created and leakage occurs. easy. On the other hand, when the shape of the front and back of the diaper is a shape corresponding to the groin, uncomfortable feeling and uncomfortable feeling are generated in the heel.
That is, when the angle formed between the straight line OT1 and the longitudinal (vertical) center line M2 of the exterior sheet 2 is 30 degrees or less, the waist elastic members 5a and 5b and the leg elastic members 9a, The outer sheet 2 corresponding to the brim portion can be pulled in the left-right direction by the elastic stress (elastic force) of 9b, the gap between the brim portions can be suppressed as much as possible, and the elastic force of the elastic members around the legs of the leg openings is worn Since it acts so as to press the article against the thigh, leakage of excrement can be suppressed.
Moreover, since the angle formed by the straight line OT1 and the center line M2 in the length direction (vertical direction) of the exterior sheet 2 is small, it is possible to eliminate discomfort and discomfort in the buttocks.

Further, on the inner side of the left bay entrance 6 and the right bay entrance 7, as shown in FIG. 1, crotch elastic members 10, 11 extending in parallel to the longitudinal direction of the exterior sheet 2 are provided. ing. The crotch elastic members 10, 11 are formed symmetrically with respect to the center line M1 of the exterior sheet 2, and are formed symmetrically with respect to the center line M2.
The crotch elastic members 10 and 11 prevent the discomfort and leakage by fitting the exterior sheet and the absorbent body mainly at the bottom of the crotch.

The crotch elastic members 10 and 11 extend in the extending direction (direction parallel to the center line M2) and the vertical direction (direction parallel to the center line M1) of the waistline elastic members 5a and 5b, The end portion is disposed in the vicinity of the waist elastic members 5a and 5b or at a crossing position.
1 and 3, the end portions of the crotch elastic members 10 and 11 are arranged at positions where they intersect with the lower portion 5a1 of the waistline elastic member 5a and with the upper portion 5b1 of the waistline elastic member 5b.
However, it is not necessary that the end portions of the crotch elastic members 10 and 11 intersect with the waist elastic members 5a and 5b, and at least the ends of the crotch elastic members 10 and 11 What is necessary is just to be comprised so that it may arrange | position in the vicinity of the lower part 5a1 of the elastic member 5a, and the upper part 5b1 of the trunk periphery elastic member 5b.

  In this way, the crotch elastic members 10 and 11 are extended in the extending direction (direction parallel to the center line M2) and the vertical direction (direction parallel to the center line M1) of the waist elastic member, When the end portion is disposed in the vicinity of or intersecting with the waistline elastic member, when the wearing article is mounted, the space between the first and second crotch elastic members 10 and 11 is between the waistline elastic member 5a, The crotch portion of the exterior sheet 2 is widened in the width direction, and fits to the body shape of the wearer's front and back crotch portions after wearing, thereby suppressing the displacement and leakage of the worn article.

Further, when the end portions of the first and second crotch elastic members 10 and 11 are arranged at positions where they intersect the waist elastic member, the first and second crotch elastic members 10 and 11 In the space (region R1), the waistline elastic members 5a and 5b are not present, and there is no elastic force in the width direction of the exterior sheet 2.
The waistline elastic members 5a and 5b may be cut. 1 and 3, not only between the first and second crotch elastic members 10 and 11 (region R1) but also the region R2 above the waist elastic member 5a (the upper end of the absorber 3). The region around the waist), the region R3 below the waist elastic member 5b (the region between the lower ends of the absorber 3), or the waist elastic members 5a, 5b are not present or the waist elastic member 5a and 5b are preferably cut so that there is no elastic force in the width direction of the exterior sheet 2.

  Thus, when the end portions of the first and second crotch elastic members 10 and 11 are arranged at positions where they intersect the waist elastic member, the first and second crotch elastic members 10 and 11 11 (region R1), the waistline elastic members 5a and 5b do not exist, so there is no elastic force in the width direction of the exterior sheet 2, and the exterior sheet is easily spread in the width direction. Fit according to the person's body shape, and displacement and leakage of the worn article are suppressed.

  The crotch elastic member 10 includes three elastic members 10a, 10b, and 10c, and the width thereof (interval between the elastic members 10a and 10c) is 10 mm or more. The crotch elastic member 11 is also composed of three elastic members 11a, 11b, and 11c, and the width thereof (interval between the elastic members 11a and 11c) is 10 mm or more, like the crotch elastic member 10. Is formed.

  Preferably, the width is 10 mm to 40 mm. When the width of the crotch elastic members 10 and 11 is less than 10 mm, the width for pressing the side portions of the urine pad and the absorbent body to the body is small, and excrement and the like leak, which is not preferable. On the other hand, when the width exceeds 40 mm, it is not preferable because the width to be crimped to the body is equal to or greater than the crotch width when the left and right are combined.

Further, the dimension between the crotch elastic members 10 and 11, that is, the distance L between the elastic member 10a of the crotch elastic member 10 and the elastic member 11a of the crotch elastic member 11 is formed to be 70 mm to 140 mm. ing.
From the dimension of the crotch part of the body, it is preferably 70 mm or more. On the other hand, if it exceeds 140 mm, the exterior sheet 2 is not preferable because the outer sheet 2 bumps into the crotch part.

Further, between the crotch elastic members 10 and 11, as shown in FIGS. 1 and 3, the leg elastic members 8a and 8b in the left bay entrance and the leg elastic members 9a and 9b in the right bay entrance are as follows. The end portions 8a1, 8b1, 9a1, and 9b1 on the center line side in the width direction of the exterior sheet 2 in the leg-hole elastic members 8a, 8b, 9a, and 9b in the left and right bay entrance portions are not connected to each other. The second crotch elastic members 10 and 11 are formed at positions overlapping with each other.
The end portions 8a1, 8b1, 9a1, and 9b1 may be formed at positions adjacent to the first and second crotch elastic members 10 and 11.

  If comprised in this way, the expansion-contraction force of the width direction of the exterior sheet | seat 2 by the leg periphery elastic members 10 and 11 of a right-and-left bay entrance part does not act on a crotch part, and it is the 1st, 2nd crotch elastic member until it wears it. 10, 11 parallelism is maintained. And after wearing, it fits according to the body shape of a wearer's front and back crotch part, and a position shift and a leak of a wearing article are controlled.

The crotch elastic member 10 (10a, 10b, 10c) and the crotch elastic member 11 (11a, 11b, 11c) are formed from elastic members such as thread rubber, flat rubber, and urethane film.
Further, in this embodiment, the crotch elastic member 10 includes three elastic members 10 a, 10 b, and 10 c, and the crotch elastic member 11 also has three elastic members like the crotch elastic member 10. Although the case where it consists of member 11a, 11b, 11c was shown, it is not specifically limited to this, The elastic member of the crotch part elastic members 10 and 11 should just be two or more.

As described above, the crotch elastic members 10 and 11 are provided in parallel to the longitudinal direction (center line M1) of the diaper inside the left bay entrance 6 and the right bay entrance 7 and extend and contract in the front-rear direction. A force (elastic force) is applied.
Here, as described above, when the elastic members 8a and 8b of the left bay entrance 6 and the elastic members 9a and 9b of the right bay entrance 7 are connected to each other, the stretching force in the width direction of the exterior sheet 2 ( Due to the elastic force, the crotch elastic members 10 and 11 are not parallel, and a portion N having a narrow interval between the crotch elastic members 10 and 11 is generated (the outer sheet 2 is wrinkled and a narrow portion is generated).
The portion N where the gap between the crotch elastic members 10 and 11 is narrow is gradually shifted to the front side every time the wearer moves. Finally, as shown in FIG. The wearing position of the diaper is shifted so that the portion N having a narrow interval 11 hits the scorch portion S.

On the other hand, when the elastic members 8a and 8b of the left bay entrance 6 and the elastic members 9a and 9b of the right bay entrance 7 are not formed as described above, the expansion and contraction in the width direction of the exterior sheet 2 is performed. Since no force (elastic force) is generated, the crotch elastic members 10 and 11 are fitted in accordance with the curve of the wearer's front and back crotch, and are shown in FIG. Thus, the normal wearing state of the diaper can be maintained.
FIG. 6 is a side view of the wearer, where F is the wearer's thigh and D is the wearer's buttocks.

Further, the crotch elastic members 10 and 11 will be described. The three elastic members 10a, 10b, and 10c of the crotch elastic member 10 have a strong elasticity (elastic force) of the elastic member 10a located on the inner side, The elasticity (elastic force) of the positioned elastic member 10c is weak, and the elasticity (elastic force) of the elastic member 10b is located in the middle.
The elastic members 10a, 10b, and 10c are disposed so as to be orthogonal to each other at the lower end 5a1 of the waist elastic member 5a and the upper end 5b1 of the waist elastic member 5b.

Similarly, the three elastic members 11a, 11b, and 11c of the crotch elastic member 11 are strong in elasticity (elastic force) of the elastic member 11a located on the inside, and elastic (elastic force) of the elastic member 11c located on the outside. ) Is weak, and the elasticity (elastic force) of the elastic member 11b is located in the middle thereof.
The elastic members 11a, 11b, and 11c are arranged so as to be orthogonal to each other at the lower end 5a1 of the waist elastic member 5a and the upper end 5b1 of the waist elastic member 5b.

As described above, the elastic member 10a located on the inner side, the elasticity of 11a is strong, elastic members 10c you located outside, the elasticity of 11c is formed weakly, the elastic members 10, 11 waist elastic members 5a, 5b because it is arranged so that a position perpendicular to the, when wearing the diaper, as shown in FIG. 5, with widening the outer sheet 2 (absorber 3) in the width direction, the outer sheet 2 (the absorber The edge of 3) is made to fold outward.
Further, since the crotch elastic members 10 and 11 are orthogonal to the waist elastic members 5a and 5b, even if the wearer's force is weak and the wearing method is shallow, the force to pull up the worn article works, and the exterior sheet 2 The absorbent body 3 is pressure-bonded to the wearer's body and can prevent leakage of excrement.

The trunks-type diaper 1 has a front body, a back body, and a crotch portion formed by folding the exterior sheet 2 in a state in which the exterior sheet 2 as shown in FIG. As shown, the left and right edges E are joined to each other in the form of a palm, and the diaper 1 is assembled by forming joints on the left and right sides.
At this time, as shown in FIG. 1, it is desirable that either one of the right and left joints (the right edge in FIG. 1) of the joints of the left and right edges of the exterior sheet is joined so as to be opened and closed. For example, the hook-and-loop fasteners 15 and 16 may be provided on the right edge of the exterior sheet so as to be detachable and openable.
In addition, the trunks type diaper 1 is a diaper that can be worn reversely, with the front body being the back body and the back body being the front body. As described above, the trunks-type diaper 1 has the waist opening C at the top in addition to the left and right leg openings A and B. The figure which caught this diaper 1 from the front is FIG.

In addition, in the said embodiment, although demonstrated taking the diaper as an example as a disposable wearing article, this invention is not limited to a diaper, For example, it can apply also to a diaper cover, pants, etc.
Moreover, in the said embodiment, in order to improve the fitting property to the body of a diaper and to prevent leakage of urine etc., an elastic member is each arrange | positioned around a waist, a trunk circumference, and a leg circumference, The elastic members 4a, 4b), the waist circumference gathers (elastic members 5a, 5b), and the left and right leg gathers (elastic members 8a, 8b, 9a, 9b) have been described. Also, it may be arranged in other parts.

  As the elastic member, a plurality of natural rubber yarns, synthetic rubber yarns, stretchable nonwoven fabrics, stretchable films, and the like can be used. Moreover, although the said embodiment demonstrated the case where there were three elastic members, you may increase / decrease a number in consideration of the mounting | wearing feeling to a body and leak-proof property.

DESCRIPTION OF SYMBOLS 1 (Trunks type) Diaper 2 Exterior sheet 3 Absorber 4a, 4b waist elastic member 5a, 5b waist elastic member 5a1 waist elastic member lower end 5b1 waist elastic member upper end 6 left bay entrance 7 right bay entrance 8a, 8b Leg elastic member 8a1, 8b1 Left bay elastic member end 9a, 9b Left bay elastic member 9a1, 9b1 Right bay elastic member end 10 ( 10a, 10b, 10c) Crotch elastic member 11 (11a, 11b, 11c) Crotch elastic member A Left leg opening B Right leg opening D heel L L Distance M1 between elastic member 10a and elastic member 11a Centerline M2 in the width direction Centerline R1 in the longitudinal direction of the exterior sheet R1 Region R2 between the first and second crotch elastic members Region R3 above the upper elastic member and up to the upper end of the absorber R3 Elastic member A is better, the area S groin to the lower end portion of the absorbent body

Claims (5)

An exterior sheet that covers the waist from the back of the wearer to the back of the waist from the hip,
Left and right leg openings formed on the left and right sides of the exterior sheet and symmetrically formed by left and right bay entrances formed symmetrically, and
A waistline elastic member extending in the width direction of the exterior sheet from the waist of the exterior sheet to the vicinity of the left bay entrance and the right bay entrance, and forming a waistline gather,
In a disposable wearing article comprising at least leg elastic members arranged along the edges of the left and right bay entrances and forming leg gathers that are symmetrical in the front and rear directions in each of the left and right leg openings,
An absorber disposed on the inner surface side of the exterior sheet;
A first crotch elastic member comprising a plurality of elastic members extending in parallel to a center line in the width direction of the exterior sheet between the exterior sheet and the absorber inside the left bay entrance When,
A second crotch elastic member formed of a plurality of elastic members that extend in parallel to a center line in the width direction of the exterior sheet between the exterior sheet and the absorber inside the right bay entrance. And comprising
The leg elastic member of the left bay entrance and the leg elastic member of the right bay entrance are not connected and formed between the first and second crotch elastic members,
An end on the center line side in the width direction of the exterior sheet in the leg elastic member of the left and right bays is formed at a position adjacent to or overlapping with the first or second crotch elastic member,
In a state where the exterior sheet is unfolded, the intersection of the center line in the width direction of the exterior sheet and the center line in the longitudinal direction of the exterior sheet, a straight line connecting the end portions of the left and right bays, and the longitudinal direction of the exterior sheet disposable wearing article, wherein the angle between the direction of the center line Ru is formed below 30 degrees. The first and second crotch elastic members extend in a direction perpendicular to the extending direction of the waist elastic member, and their end portions are arranged in the vicinity of or intersect with the waist elastic member,
And each width | variety of the said 1st and said 2nd crotch part elastic member is formed in 10 mm-40 mm, The disposable wearing article of Claim 1 characterized by the above-mentioned. The first and second crotch elastic members extend in a direction perpendicular to the extending direction of the waist elastic member, and their end portions are arranged in the vicinity of or intersect with the waist elastic member,
The elastic force of the innermost elastic member in each of the first and second crotch elastic members is larger than the elastic force of the outermost elastic member. Or the disposable wearing article of Claim 2. When the end portions of the first and second crotch elastic members are disposed at positions where they intersect the waist elastic member, the first and second crotch elastic members are disposed between the first and second crotch elastic members. The waistline elastic member does not exist or the waistline elastic member is divided so that there is no elastic force in the width direction of the exterior sheet. Disposable wearing items.   The disposable wearing article according to any one of claims 1 to 4, wherein either one of left and right joints of the left and right edges of the exterior sheet is joined so as to be openable and closable.

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