JP5008923B2 - Pants-type wearing items - Google Patents

Description

  The present invention relates to a pants-type wearing article.

Patent Document 1 discloses a pants-type wearing article that includes a front body and a back body and has a waist opening at the top, and extends from the vicinity of the lower end edge of the inner surface of the front body toward the upper end of the front body. A first engagement area, a second engagement area formed in the vicinity of the lower end edge of the inner surface of the back body, and a third formed on the outer surface of the back body away from the second engagement area in the direction of the upper end. A wearing article having an engagement area, wherein the second and third engagement areas are detachably engaged with the first engagement area, and a pair of left and right leg openings are formed in the wearing article is disclosed. Yes.
JP 2001-252304 A (paragraphs 0035 to 0036, FIG. 1)

  The diaper of Patent Document 1 is formed so that the lower ends of the front body and the back body can be engaged and disengaged, through the wearer's legs from the waist opening to the lower opening, the diaper is pulled up to the wearer's waist, Since it can be worn by engaging the lower end portions of these body parts, mounting is easy.

  In the diaper of Patent Literature 1, when the front body and the back body are engaged when worn, the crotch portion provided with an absorber for absorbing urine or the like is brought into close contact with the wearer. However, there is room for improvement in that no means for positively adhering the absorbent body to the wearer after wearing is provided.

  It is an object of the present invention to provide a pants-type wearing article with improved crotch adhesion to a wearer.

  The present invention for solving the above-described problems includes a waistline portion arranged around the wearer's torso, and a crotch portion extending from the wearer's back side to the abdomen via the crotch and connected to the waistline portion. And a pants-type wearing article in which a pair of leg-hole openings are formed by lower end edges on both sides of the waistline part and both side edges of the crotch part when the waistline part and the crotch part are connected.

A feature of the present invention is that a connecting portion that detachably connects at least one of the abdomen and back sides of the wearer between the waistline portion and the crotch portion, and both sides of the waistline portion that forms the leg periphery opening. a first leg-hole elastic zone pair extending along the lower edge, and a second leg-hole elastic zone pair extending along the side edges of the crotch portion forming the leg-openings, the first in the connecting portion 1 The elastic area around the leg and the elastic area around the second leg are connected so as to overlap each other, and the connecting portion has higher rigidity than the elastic area around the first and second legs, and is detachable from each other. A first connecting member located on the waist portion and overlapping the elastic region around the first leg, and a second connecting member located on the crotch portion and overlapping the elastic region around the second leg .

In yet another embodiment, a pair of leak-proof cuffs extending along both side edges of the crotch part are provided, the leak-proof cuffs extending in the same direction as the side edges and fixed to the crotch part, The leakproof cuff elastic region extends in parallel with the fixed end and can be separated from the crotch portion, and the leakproof cuff elastic region extends along the free end. It is preferable that it is connected to the leg circumference elastic region.
In another embodiment, it is preferable that the leak-proof cuff elastic region constitutes the elastic region around the second leg and is connected to the elastic region around the first leg so as to overlap the connecting portion.

In the present invention, the elastic region around the first leg on the waist part side and the elastic region around the second leg on the crotch part side are overlapped and connected via the connection part between the waist part and the crotch part of the worn article. The As a result, the elastic regions around the first and second legs are interlocked, and the contraction force is united and the crotch portion is pulled up toward the waist portion, thereby improving the adhesion of the crotch portion to the wearer.
In the present invention, when the elastic regions are overlapped, when the waist portion and the crotch portion are connected and projected from the direction perpendicular to the connecting portion, for example, at least one of the first leg elastic region and the second leg elastic region. That part overlaps. In addition, when connecting, the force applied to one is applied to the other via a member or material (for example, mechanical fastener or hot melt adhesive) that is relatively stiffer than the cloth-like material constituting the worn article. It also means that there is a relationship that is communicated.

  In the connection portion, in the aspect in which the second leg elastic region extends on the extension line in the direction in which the first leg elastic region extends, the direction of the contraction force of the first leg elastic region and the second leg elastic region match. Thus, the contraction force is efficiently transmitted, and the crotch portion can be more effectively pulled up toward the waist portion.

  A pair of leak-proof cuffs are provided along both side edges of the crotch portion, and a leak-proof cuff elastic region extending along the free end of the leak-proof cuff overlaps with the second connecting member to form an elastic region around the first and second legs. In the connected mode, the contraction force of the leak-proof cuff elastic region is added to the contraction force of the first and second leg elastic regions, and the crotch portion is pulled up toward the waist portion. The nature is further improved.

  With reference to the accompanying drawings, details of a pants-type wearing article according to the present invention will be described using a disposable diaper 1 (hereinafter referred to as diaper 1) as an example.

<First Embodiment>
With reference to attached FIGS. 1-3, the diaper 1 which concerns on 1st Embodiment is demonstrated.
FIG. 1 is a perspective view in which a diaper 1 in which a connecting portion 8 is provided on the abdomen and back sides of a wearer is separated into a waistline member 2 constituting a waistline portion and a crotch member 3 constituting a crotch portion. FIG. 2 is a developed view of the diaper 1 in which both sides 4 of the waistline member 2 are separated and developed, and a part of the waistline member 2 and the crotch member 3 are broken. FIG. 3 is a schematic view schematically showing a connection state of the first and second leg-around elastic regions 11 and 12 in the section taken along line III-III in FIG. 2, and the upper side of FIG. 3 is above the diaper 1. Equivalent to. In the present application, the vertical direction refers to the vertical direction viewed from a standing wearer.

  As shown in FIG. 1, the diaper 1 includes a waistline member 2 that forms a waistline portion arranged around the waist of the wearer, and is detachably connected to the waistline member 2 via a connection portion 8. The crotch member 3 extends from the back side to the abdomen via the crotch and forms a crotch portion. When the waistline member 2 and the crotch member 3 are connected, a pair of leg openings 7 indicated by imaginary lines are formed on the left and right sides of the wearer by the lower end edge 5 on both sides 4 of the waistline member 2 and the side edges 6 of the crotch member 3. It is formed. Further, the first leg elastic region 11 is curved and extends along the lower edge 5 of the both sides 4 of the waist member 2 forming the leg periphery opening 7, and the second leg around along the both side edges 6 of the crotch member 3. The elastic region 12 extends. Leakage of urine and the like from the legs is prevented by the elastic contraction of the elastic regions 11 and 12 around the first and second legs.

Next, each part of the diaper 1 will be described with reference to FIG.
The waistline member 2 includes a skin-side sheet 13 made of a liquid-permeable non-woven fabric disposed on the wearer side, and a liquid-impermeable outer sheet 14 serving as an exterior sheet of the diaper 1. It is formed by connecting the front body 15 corresponding to the side and the both sides 4 of the back body 16 corresponding to the back side. A waistline elastic region 17 is attached between the skin side sheet 13 and the outer sheet 14 along the upper edge 18 of the waistline member 2 under extension.
When the diaper 1 is worn, the lower end edges 5 of both sides 4 of the waistline member 2 forming a part of the leg periphery opening 7 are curved upward to fit the wearer's leg. Here, the elastic region 11 around the first leg is attached between the skin side sheet 13 and the outer sheet 14 under extension.

The crotch member 3 has a vertically long shape that extends from the wearer's back to the abdomen through the crotch and can be fitted to the leg, and includes a back sheet 19 made of a liquid-impervious fiber nonwoven fabric or plastic film, The top sheet 20 is made of a permeable nonwoven fabric and comes into contact with the skin of the wearer, and includes an absorber (not shown) that is interposed between the two and absorbs urine and the like.
Further, along the side edges 6 extending in the longitudinal direction of the crotch member 3, the second leg-around elastic region 12 is attached between the back sheet 19 and the top sheet 20 under extension. The crotch member 3 may be a vertically long shape that can fit the wearer's crotch portion, and may be a rectangle or a shape in which both side edges 6 are curved inward of the diaper 1.

  The connecting portion 8 includes a detachable first connecting member 21 and a second connecting member 22. The first connecting member 21 is attached to the inner side (wearer side) of the waistline member 2 and in the vicinity of the lower end edge 5 on the abdomen and the back side. The second connecting member 22 is outside the crotch member 3 and the crotch member 3. It is attached in parallel to the upper end 23 and the lower end 24 extending in the width direction. The first connection member 21 can be attached to the outside of the waistline member 2, and the second connection member 22 can be attached to the inside of the crotch member 3.

As the first and second connection members 21 and 22 constituting the connection portion 8, mechanical fasteners composed of a large number of loops and hooks are used. In addition, you may use well-known repeatedly removable connection means, such as an adhesive tape. The first and second connecting members 21 and 22 are respectively bonded to the waistline member 2 and the crotch member 3 with a hot melt adhesive (not shown). The first and second connecting members 21 and 22 extend over substantially the entire length in the width direction of the lower edge 5 of the belly side and the back side of the waist member 2 and in the width direction of the upper end 23 and the lower end 24 of the crotch member 3 However, it may be spaced apart at least on both sides in the same width direction.
In general, the mechanical fastener and the adhesive tape constituting the connecting portion 8 have relatively higher rigidity than the nonwoven fabric constituting the waistline member 2 and the crotch member 3.

The first connection member 21 is attached at a position overlapping the first leg elastic region 11 of the waistline member 2, and the second connection member 22 is attached at a position overlapping the second leg elastic region 12 of the crotch member 3.
The widths of the first connecting member 21 and the second connecting member 22 are preferably larger than the region widths W1 and W2 of the first leg-around elastic region 11 and the second leg-around elastic region 12, respectively. Taking the first connecting member 21 as an example, the width is larger than the maximum distance between the pair of first leg elastic regions 11, 11 at the attachment position, or the region width W1 of the first leg elastic region 11 is set. Two first connecting members 21 having a width larger than several centimeters may be provided, and each may be configured to overlap the elastic region 11 around the first leg.

  As described above, the first and second connecting members 21 and 22 are made wider than the region widths W1 and W2 of the first and second leg-around elastic regions 11 and 12, respectively. , 22 can securely connect the elastic regions 11 and 12 around the first and second legs. If the ends of the first and second connecting members 21 and 22 are connected together, it is preferable that the elastic regions 11 and 12 around the first and second legs overlap each other.

  A plurality of rubber bands are used for the first and second leg elastic regions 11 and 12 and the waist elastic region 17, and a space between the waist member 2 and the crotch member 3 with a hot melt adhesive (not shown). It is glued open. An elastic plastic film or the like may be used for the elastic regions 11 and 12 around the first and second legs.

  When the crotch member 3 is connected to the waistline member 2 via the connection portion 8, the first leg circumference elastic region 11 and the second leg circumference elastic region 12 are connected via the connection portion 8 as shown in FIG. 2. Overlapped and connected. At this time, in the connecting portion 8, it is preferable that the second leg elastic region 12 extends on an extension line in the direction in which the first leg elastic region 11 extends. Thereby, since the direction of the contraction force of the elastic region around the first leg and the elastic region around the second leg coincides, the crotch member 3 can be effectively pulled up toward the waist member 2 by efficiently interlocking with each other. .

  The first and second leg elastic regions 11 and 12 are spaced apart from the waist member 2 and the crotch member 3 by a hot melt adhesive HM (hereinafter referred to as an adhesive HM) as shown in FIG. It is glued. Further, the first and second connecting members 21 and 22 which are mechanical fasteners are also bonded to the waistline member 2 and the crotch member 3 with an adhesive HM, and the first and second connecting members 21 and 22 are used as the trunks. The surrounding member 2 and the crotch member 3 are connected.

  As described above, since the first and second leg elastic regions 11 and 12 are attached to the waist member 2 and the crotch member 3 in an expanded state, they elastically contract. For this reason, the 1st connection member 21 is pulled toward the arrow F direction of FIG. 3, ie, the upper direction of the diaper 1, with the contraction force of the 1st leg periphery elastic region 11. FIG. Further, the portion of the crotch member 3 below the second connection member 22 in FIG. 3 is also directed toward the second connection member 22, that is, upward of the diaper 1 due to the contraction force of the second leg-around elastic region 12. Be pulled. The elastic regions 11 and 12 around the first and second legs are connected via first and second connecting members 21 and 22 (connecting portions 8) that are relatively rigid and difficult to deform. The contraction force of the elastic regions 11 and 12 around the two legs is united to pull up the crotch member 3 toward the waist member 2, and the adhesion of the crotch member 3 to the wearer is improved.

  When the first leg elastic region 11 is bonded to the waist member 2 at a plurality of points with an adhesive HM, at least one point of the adhesive HM is disposed at a position overlapping the first connecting member 21. Is preferred. The same applies to the elastic region 12 around the second leg. In general, the adhesive HM is relatively rigid and harder to deform than the non-woven fabric, so that the connection between the elastic regions 11 and 12 around the first and second legs is made stronger by bonding with the adhesive HM as described above. can do.

  Further, the non-woven fabric in the vicinity of the elastic regions 11 and 12 around the first and second legs has a lot of wrinkles due to the contraction force of these elastic regions, and has an uneven surface (not shown in FIG. 3, see FIG. 1). ). If the first and second connecting members 21 and 22 are made of a material having higher rigidity than the nonwoven fabric constituting the skin side sheet 13 and the back sheet 19, the first connecting member 21 and the second connecting member are used regardless of the uneven surface. Since 22 can be connected between planes, the connection of the elastic regions 11 and 12 around the first and second legs becomes more reliable.

Next, the diaper 1 which concerns on 2nd Embodiment with reference to FIGS. 4-6 is demonstrated.
FIG. 4 is an exploded view showing a part of the right side of the paper surface of the waistline member 2, the crotch member 3 and the leak-proof cuff 31 of the diaper 1, and the leak-proof cuff 31 is attached to the top sheet 20 of the crotch member 3. Except for this point, it is the same as that of the first embodiment, and common constituent elements are denoted by the same reference numerals. FIG. 5 is a schematic diagram showing the connection state of each elastic region in the VV cross section of FIG. 4, and FIG. 6 is a schematic diagram showing the connection state of each elastic region in the VI-VI cross section of FIG. In addition, illustration of the absorber of the crotch member 3 is abbreviate | omitted in FIGS.

  The leak-proof cuff 31 is made of a pair of non-woven fabrics having a substantially rectangular shape, folded back along a folding line H extending in the long side direction of the rectangle, and along the side edges 6 and 6 on the top sheet 20 side of the crotch member 3. And is attached so as to overlap the second connecting member 22 (see FIG. 5). One of the long sides of the leak-proof cuff 31 is a fixed end 32 fixed to the side edges 6 and 6 of the crotch member 3, and the other long side is a free end 33 that can be separated from the crotch member 3. A leak-proof cuff elastic region 34 is attached along. The leak-proof cuff elastic region 34 is made of a rubber string, and is bonded to the inner side of the end of the nonwoven fabric constituting the leak-proof cuff 31 with an adhesive HM while being stretched (see FIG. 6).

  As shown in FIG. 4, the free end 33 of the leak-proof cuff 31 extends in parallel with the fixed end 32, and at least a part of the portion 35 that overlaps the second connecting member 22 of the front and rear bodies 15, 16 is the top. The sheet 20 is bonded with an adhesive HM, and other portions are not bonded to the top sheet 20 and can be separated. With this configuration, when the diaper 1 is worn, if the crotch member 3 is bent with the top sheet 20 facing inward, the free end 33 is separated from the crotch member 3 due to contraction of the leak-proof cuff elastic region 34, and the leak-proof cuff 31 Becomes standing with respect to the crotch member 3 and the free end 33 is in close contact with the wearer's leg, thereby preventing urine or the like from leaking from the leg opening 7.

Next, the connection state of each elastic region will be described with reference to FIGS. Similar to the first embodiment, the elastic regions 11 and 12 around the first and second legs are connected to each other via the relatively rigid first and second connecting members 21 and 22 and the adhesive HM. . Further, the leak-proof cuff elastic region 34 of the free end 33 is overlapped and connected to the elastic region 12 around the second leg in the state where the nonwoven fabric constituting the leak-proof cuff 31 is interposed. It is connected to the elastic region 11 around the first leg through the members 21 and 22 and the adhesive HM.
As is apparent from FIG. 6, the contraction force of the leak-proof cuff elastic region 34 is added to the contraction force of the first and second leg elastic regions 11 and 12, and the contraction force of the three members is integrated into the crotch. The member 3 is pulled up toward the waistline member 2 to improve the adhesion of the crotch member 3 to the wearer.

Next, the diaper 1 which concerns on 3rd Embodiment with reference to FIGS. 7-9 is demonstrated.
FIG. 7 is an exploded view of the waist member 2 of the diaper 1, the crotch member 3, and a part of the right side of the leak-proof cuff 31, in which the leak-proof cuff elastic region 34 is the second leg-round elastic region 12. And there is no rubber cord between the back sheet 19 and the top sheet 20, and an absorber 36 that absorbs urine or the like is interposed between the leak-proof cuff elastic region 34 and the first leg-around elastic region 11. Except this, it is the same as in the second embodiment. 8 is a schematic diagram showing the connection state of each elastic region in the section VIII-VIII in FIG. 7, and FIG. 9 is a schematic diagram showing the connection state of each elastic region in the section IX-IX in FIG. In addition, the same code | symbol is attached | subjected to the component which is common in 2nd Embodiment.

  The absorbent body 36 is interposed between the back sheet 19 and the top sheet 20 of the crotch member 3, and is adhered to the back sheet 19 and the top sheet 20 by applying an adhesive HM onto the dots or the loops. It overlaps with the elastic region 11 and the second connecting member 22 (see FIG. 8). The absorbent body 36 is made of pulverized pulp and a highly water-absorbing polymer, and has relatively higher rigidity than the nonwoven fabric constituting the waistline member 2 and the crotch member 3. In addition, the absorber 36 has a curved shape in which there is no central portion on both sides so as to fit the crotch portion of the wearer.

  The pair of leak-proof cuffs 31 are attached along the side edges 6 and 6 on the top sheet 20 side of the crotch member 3, overlap with the second connection member 22, and along the free end 33 of the leak-proof cuff 31. A leak-proof cuff elastic region 34 constituting the elastic region around the second leg is attached (see FIG. 8). The leak-proof cuff elastic region 34 is made of a rubber string, and is bonded to the inner side of the end of the nonwoven fabric constituting the leak-proof cuff 31 with an adhesive HM at an interval under extension (see FIG. 9). In the free end 33 of the leak-proof cuff 31, as in the second embodiment, at least a part of the portion 35 overlapping the second connecting member 22 is bonded to the top sheet 20 with the adhesive HM, and the other portions are the top sheet. It is not adhered to 20 and can be separated.

  Next, the connection state of each elastic region will be described with reference to FIGS. In this embodiment, as shown in FIGS. 8 and 9, the leakproof cuff elastic region 34 constituting the first leg elastic region 11 and the second leg elastic region 12 is relatively high in rigidity and overlaps with each other. The first and second connection members 21 and 22, the adhesive HM, and the absorber 36 are connected to each other. As a result, as is apparent from FIG. 9, the contraction force of the first leg circumference elastic region 11 and the leak-proof cuff elastic region 34 is integrated, and the crotch member 3 is pulled up toward the waist member 2. Thereby, the adhesiveness of the crotch member 3 with respect to a wearer improves. In addition, since the contraction force of the first leg elastic region 11 and the leak-proof cuff elastic region 34 is integrated, the free end 33 is more closely attached to the wearer's leg, and urine leakage is more effectively performed. Is prevented.

  In addition, although the structure where the 1st leg periphery elastic region 11 and the leak-proof cuff elastic region 34 were connected via the absorber 36 was demonstrated to the example, it replaces with this and does not interpose the absorber 36, and the top sheet 20 The back sheet 19 can be directly bonded with the adhesive HM to have a relatively high rigidity, and the first leg-around elastic region 11 and the leak-proof cuff elastic region 34 can be connected.

As mentioned above, although the underpants type wearing article of the present invention was explained based on an embodiment, the present invention is not limited to these but can be variously changed and carried out.
For example, although the crotch member 3 and the waistline member 2 have been described as separate bodies, the crotch member 3 and the waistline member 2 are integrated on the stomach side or the back side of the wearer, and the back side or the stomach side of the wearer. It can be configured to connect only. Moreover, although the case where the crotch member 3 and the waistline member 2 each have the top sheet 20 and the skin side sheet | seat 13 was demonstrated to the example, it can also be set as the structure without the top sheet 20. FIG. Or the leak-proof cuff 31 is not restricted to the case where it is folded in half, It can change into the structure of this other well-known leak-proof cuff. Furthermore, each elastic region and non-woven fabric can be bonded not by hot melt adhesive but by heat fusion or ultrasonic fusion.

  Further, instead of the configuration in which the second leg circumference elastic region 12 is attached to the both side edges 6 of the crotch member 3, a non-woven fabric extending outward from the both side edges 6 of the crotch member 3 is provided, and the second nonwoven fabric is provided on this non-woven fabric. By attaching the leg elastic region 12, the second leg elastic region 12 can be extended along the side edges 6 of the crotch member 3. Alternatively, instead of mechanical fasteners composed of a large number of loops and hooks, mechanical fasteners composed of a large number of hooks and hooks, or mechanical fasteners composed of non-woven fabrics are used for the first and second connecting members 21 and 22. You can also.

The perspective view of the diaper of 1st Embodiment. The expanded view of the diaper of 1st Embodiment. The schematic diagram showing the connection state of the elastic region around the 1st and 2nd leg in the III-III cross section of FIG. The expanded view of the diaper of 2nd Embodiment. The schematic diagram showing the connection state of the elastic region around the 1st and 2nd leg in the VV cross section of FIG. The schematic diagram showing the connection state of the elastic region around the 1st and 2nd leg in the VI-VI cross section of FIG. The expanded view of the diaper of 3rd Embodiment. The schematic diagram showing the connection state of the 1st, 2nd leg elastic region in the VIII-VIII cross section of FIG. The schematic diagram showing the connection state of the 1st, 2nd leg elastic region in the IX-IX cross section of FIG.

Explanation of symbols

1 Wearing articles (diapers)
2 waist part (body part)
3 Crotch part (Crotch member)
4 Both sides 5 Lower end edge 6 Both side edges 7 Leg opening 8 Connection part 11 1st leg elastic region 12 2nd leg elastic region 21 1st connection member 22 2nd connection member 31 Leak-proof cuff 32 Fixed end 33 Free end 34 Leak-proof cuff elastic area

Claims (4)

A waistline portion disposed around the waist of the wearer, and a crotch portion extending from the back side of the wearer to the abdomen via the crotch and connected to the waistline portion, the waistline portion and the crotch portion In a pants-type wearing article in which a pair of leg openings are formed by lower end edges on both sides of the waist part and both side edges of the crotch part when
A connection part that detachably connects the waistline part and the crotch part at least on either the abdomen side or the back side of the wearer;
A pair of first leg elastic regions extending along the lower edge on both sides of the waist part forming the leg opening;
And a pair of second leg-hole elastic zone extending along the opposite side edges of the crotch portion forming the leg-openings,
In the connecting portion, the elastic region around the first leg and the elastic region around the second leg are overlapped and connected to each other,
The connecting portion has a rigidity higher than that of the first and second leg elastic regions, and is positioned on the waist portion that can be attached to and detached from each other, and overlaps the first leg elastic region. And a second connecting member that is located in the crotch portion and overlaps the elastic region around the second leg.   The pants-type wearing article according to claim 1, wherein the second leg elastic region extends on an extension line in a direction in which the first leg elastic region extends in the connection portion. Provided with a pair of leak-proof cuffs extending along both side edges of the crotch portion;
The leak-proof cuff has a fixed end that extends in the same direction as the side edge and is fixed to the crotch portion, and a free end that extends in parallel with the fixed end and can be separated from the crotch portion. , A leakproof cuff elastic region extends along the free end,
The pants-type wearing article according to claim 1 or 2, wherein the leak-proof cuff elastic region overlaps with the connecting portion and is connected to the elastic region around the first and second legs. Provided with a pair of leak-proof cuffs extending along both side edges of the crotch portion;
The leak-proof cuff extends in the same direction as the side edge and is fixed to the crotch part,
Having a free end extending parallel to the fixed end and separable from the crotch portion;
A leak-proof cuff elastic region extends along the free end,
The pants-type wear according to claim 1 or 2 , wherein the leak-proof cuff elastic region constitutes the elastic region around the second leg and is connected to the elastic region around the first leg so as to overlap the connecting portion. Goods.

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