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JP5946571B1 - Disposable underwear - Google Patents

Disposable underwear Download PDF

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Publication number
JP5946571B1
JP5946571B1 JP2015140097A JP2015140097A JP5946571B1 JP 5946571 B1 JP5946571 B1 JP 5946571B1 JP 2015140097 A JP2015140097 A JP 2015140097A JP 2015140097 A JP2015140097 A JP 2015140097A JP 5946571 B1 JP5946571 B1 JP 5946571B1
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crotch
ventral
elastic
elastic member
waist
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JP2015140097A
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JP2017018444A (en
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白井 敦子
敦子 白井
宗忠 松宮
宗忠 松宮
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Koyo Corp
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Koyo Corp
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Priority to JP2015140097A priority Critical patent/JP5946571B1/en
Priority to PCT/JP2016/069406 priority patent/WO2017010300A1/en
Priority to EP16824280.8A priority patent/EP3323396B1/en
Priority to CN201680001870.8A priority patent/CN106535847B/en
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Publication of JP5946571B1 publication Critical patent/JP5946571B1/en
Priority to US15/395,063 priority patent/US20170105885A1/en
Publication of JP2017018444A publication Critical patent/JP2017018444A/en
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Abstract

【課題】股上が短く、着用者のへそ周りを圧迫せず、着用位置が安定する、使い捨て下着を提供する。【解決手段】使い捨て下着1は、胴周り方向の両端部に沿った両接合部5a,5bで互いに接合される腹側部材2及び背側部材3と、腹側部材2及び背側部材3の両中央部2c、3cに架け渡されて接合される股部材4と、腹側部材2及び背側部材3の両上端縁7,8で囲まれて形成される腰開口部6と、腹側部材2と背側部材3と股部材4とで囲まれて形成される左右の脚開口部9a,9bとを備え、腰開口部6から下方の左右の脚開口部9a,9bへ向かって広がる形状であり、腹側部材2の上端縁7の中央部7aが背側部材3の上端縁8より下がっている。【選択図】図1Disclosed is a disposable underwear that has a short rise, does not press around the wearer's navel, and is stable in wearing position. A disposable undergarment 1 includes an abdominal member 2 and a dorsal member 3 which are joined together at both joints 5a and 5b along both ends in the waistline direction, and an abdominal member 2 and a dorsal member 3. A crotch member 4 that is bridged and joined between both the central portions 2c and 3c, a waist opening 6 that is surrounded by both upper end edges 7 and 8 of the ventral member 2 and the dorsal member 3, and a ventral side It includes left and right leg openings 9a and 9b formed by being surrounded by the member 2, the back member 3, and the crotch member 4, and extends from the waist opening 6 toward the lower left and right leg openings 9a and 9b. The shape is such that the central portion 7 a of the upper end edge 7 of the ventral member 2 is lower than the upper end edge 8 of the dorsal member 3. [Selection] Figure 1

Description

本発明は、パンツ型の使い捨ておむつやパッドホルダーなどの、使い捨て下着に関する。   The present invention relates to a disposable underwear such as a pants-type disposable diaper or a pad holder.

従来知られているパンツ型の使い捨ておむつやパッドホルダーなどの使い捨て下着は、股上が長く、通常の着用者によって着用されたとき、胴周り方向に伸縮する弾性部材を備えた腰開口部が、着用者のへそ周りに略水平に位置している。例えば、特許文献1には、床に座っている者に着用された使い捨ておむつを側方から見たとき、腰開口部が着用者のへそ周りに略水平に位置している、パンツ型の使い捨ておむつが示されている。   Conventionally known disposable underwear such as pants-type disposable diapers and pad holders have a long crotch and a waist opening with an elastic member that expands and contracts around the waist when worn by a normal wearer. It is located almost horizontally around the person's navel. For example, in Patent Document 1, when a disposable diaper worn by a person sitting on the floor is viewed from the side, the waist opening is positioned substantially horizontally around the wearer's navel. Diapers are shown.

特許第3916878号公報Japanese Patent No. 3916878

しかし、着用された際に腰開口部が着用者のへそ周りに略水平に位置する使い捨ておむつは、腰開口部が骨格のないへそ周りを締め付けて着用位置を支えているので、着用者が座ったり前屈姿勢を取った場合に、おむつが大きく変形して、着用位置がずれやすい。かかる姿勢を取った際に、おむつが着用者の腹部を圧迫して不快感を与えることもある。また、かかる使い捨ておむつは、股上が長く、ズボンやスカートからはみ出し易い。不織布を資材とする使い捨ておむつは、布製下着に比べて柔軟性や吸湿性に劣るので、着用者を覆う面積が大きいと着用感が良くない。かかるおむつは、特に比較的活動的な大人用には不適当である。   However, disposable diapers that have a waist opening positioned almost horizontally around the wearer's navel when worn will support the wearing position by tightening the waist opening around the navel without a skeleton. When taking a forward bending posture, the diaper is greatly deformed, and the wearing position tends to shift. When taking such a posture, the diaper may press the wearer's abdomen and cause discomfort. In addition, such disposable diapers have a long rise and are easy to protrude from the pants and skirt. A disposable diaper made of a non-woven fabric is inferior in flexibility and hygroscopicity as compared to cloth underwear, and therefore, when the area covering the wearer is large, the wearing feeling is not good. Such diapers are particularly unsuitable for relatively active adults.

前記課題を解決するため、本発明の目的は、股上が短く、着用者のへそ周りを圧迫せず、着用位置が安定する、使い捨ておむつを提供することである。   In order to solve the above problems, an object of the present invention is to provide a disposable diaper that has a short crotch, does not press around the wearer's navel, and has a stable wearing position.

前記課題を解決するため、本発明の使い捨て下着は、胴周り方向の両端部に沿った両接合部で互いに接合される腹側部材及び背側部材と、前記腹側部材及び前記背側部材の両中央部に架け渡されて接合される股部材と、前記腹側部材及び前記背側部材の両上端縁で囲まれて形成される腰開口部と、前記腹側部材と前記背側部材と前記股部材とで囲まれて形成される左右の脚開口部と、前記腹側部材及び前記背側部材の各胴周り方向に延在する胴周り弾性部材と、前記腹側部材の前記各接合部の下部から胴周り方向の中央まで前記上端縁側へ上昇して延在する第1弾性部材とを備え、前記腰開口部から下方の左右の脚開口部へ向かって広がる形状であり、前記腹側部材の上端縁の中央部が前記背側部材の上端縁より下がっていることを特徴とする。 In order to solve the above-mentioned problem, the disposable underwear of the present invention includes a ventral member and a dorsal member that are joined to each other at both joints along both ends in the waistline direction, and the ventral member and the dorsal member. A crotch member that is bridged and joined to both central portions; a waist opening that is surrounded by both upper edges of the ventral member and the dorsal member; the ventral member and the dorsal member; Left and right leg openings formed surrounded by the crotch member, waist elastic members extending in the waist direction of the belly member and the back member, and the joints of the belly member A first elastic member extending upward toward the upper edge from the lower part of the waist part to the center in the waist direction, and extending from the waist opening toward the lower left and right leg openings, The center of the upper edge of the side member is lowered from the upper edge of the back member. .

本発明の他の態様の使い捨て下着は、前記腹側部材の胴周り方向に延在する胴周り弾性部材が、前記背側部材の胴周り方向に延在する胴周り弾性部材よりも高い張力を有する。   The disposable underwear according to another aspect of the present invention is such that the waistline elastic member extending in the waistline direction of the ventral member has higher tension than the waistline elastic member extending in the waistline direction of the back side member. Have.

本発明の更に他の態様の使い捨て下着は、領域内の弾性部材の張力を消失させる非弾性領域が、前記腹側部材の胴周り方向の中央に、前記上端縁側に頂点を有する先細り形状に形成される。   In the disposable underwear of still another aspect of the present invention, the non-elastic region for eliminating the tension of the elastic member in the region is formed in a tapered shape having a vertex on the upper edge side in the center of the waist side direction of the ventral member. Is done.

本発明の更に他の態様の使い捨て下着は、領域内の弾性部材の張力を消失させる非弾性領域が、前記背側部材の胴周り方向の中央に、前記上端縁側に頂点を有する先細り形状に形成される。   According to still another aspect of the present invention, the disposable undergarment has a non-elastic region in which the tension of the elastic member in the region disappears is formed in a tapered shape having a vertex on the upper end edge side in the center of the waist side direction of the back side member. Is done.

本発明の更に他の態様の使い捨て下着では、前記股部材は、少なくとも1対の腹側接続弾性部材を備え、前記腹側接続部材の前記股部材に接合される部分の腹側端部が、前記股部材の前記腹側部材に重ねられて接合される領域と重なり、前記腹側接続部材の前記股部材に接合される部分の背側端部が、前記股部材の前記背側部材に重ねられて接合される領域と重ならない。   In the disposable underwear of still another aspect of the present invention, the crotch member includes at least one pair of ventral connection elastic members, and the ventral end portion of the portion to be joined to the crotch member of the ventral connection member includes: The crotch member overlaps with the region to be joined to the abdomen member, and the back end portion of the abdomen connection member joined to the crotch member overlaps the back member of the crotch member. And does not overlap the area to be joined.

本発明の更に他の態様の使い捨て下着では、前記腹側部材の下端縁は、胴周り方向に略平行な両端ラインと、前記両端ラインから前記中央部へ向かうに従って前記上端縁側へ上昇する一対の傾斜ラインと、前記傾斜ライン間をつなぐ中央ラインとを含み、前記背側部材の下端縁は、胴周り方向に略平行な両端ラインと、前記両端ラインから前記中央部へ向かうに従って前記上端縁と反対側へ下降する一対の傾斜ラインと、前記傾斜ライン間をつなぐ中央ラインとを含む。 In the disposable underwear according to still another aspect of the present invention, the lower end edge of the ventral member is a pair of both end lines substantially parallel to the waistline direction and a pair of ascending toward the upper end edge from the both end lines toward the central portion. and the inclined line, and a central line connecting between the inclined lines, the lower edge of the back side member, said upper edge in accordance with both end line substantially parallel to the waist direction, from the opposite ends lines toward the central portion A pair of inclined lines descending to the opposite side and a central line connecting the inclined lines are included.

本発明の更に他の態様の使い捨て下着は、前記腹側部材と前記背側部材とが分離され且つ伸展された状態で、前記腹側部材の下端縁が前記背側部材の下端縁と突き合わされる際に一致する。   The disposable underwear of still another aspect of the present invention is such that the lower end edge of the ventral member is abutted with the lower end edge of the dorsal member in a state where the ventral member and the dorsal member are separated and extended. Match.

本発明の更なる詳細、特徴、及び利点は、図面を参照しながら述べる好ましい例示的実施形態についての以下の説明によって、明らかになる。   Further details, features and advantages of the present invention will become apparent from the following description of preferred exemplary embodiments described with reference to the drawings.

本発明の一の実施形態の使い捨て下着の正面図である。It is a front view of the disposable underwear of one embodiment of the present invention. 該使い捨て下着の背面図である。It is a rear view of this disposable underwear. 該使い捨て下着の腹側部材及び背側部材を形成するための裁断予定線、伸長状態の弾性部材、及び非弾性領域を示す図である。It is a figure which shows the cutting planned line for forming the abdominal side member and back side member of this disposable underwear, the elastic member of an expansion | extension state, and an inelastic area | region. 該使い捨て下着の弾性部材を伸長した状態での展開図である。It is an expanded view in the state where the elastic member of this disposable underwear was extended. 該使い捨て下着の股部材の弾性部材を伸長した状態での正面図である。It is a front view in the state where the elastic member of the crotch member of this disposable underwear was extended. 図5の股部材のVI−VI線に沿った模式的断面図である。FIG. 6 is a schematic cross-sectional view taken along line VI-VI of the crotch member in FIG. 5. 該使い捨て下着が着用された状態を示す正面図である。It is a front view which shows the state with which this disposable underwear was worn. 該使い捨て下着が着用された状態を示す背面図である。It is a rear view which shows the state with which this disposable underwear was worn. 該使い捨て下着が着用された状態を示す左側面図である。It is a left view which shows the state with which this disposable underwear was worn. 他の実施形態の使い捨て下着の弾性部材を伸長した状態での展開図である。It is an expanded view in the state where the elastic member of the disposable underwear of other embodiments was extended. 更に他の実施形態の使い捨て下着の弾性部材を伸長した状態での展開図である。It is an expanded view in the state where the elastic member of the disposable underwear of other embodiments was extended. 更に他の実施形態の使い捨て下着の弾性部材を伸長した状態での展開図である。It is an expanded view in the state where the elastic member of the disposable underwear of other embodiments was extended.

本発明の一の例示的な実施形態について以下に述べる。
図1は、本実施形態に係る使い捨て下着であるパンツ型の使い捨ておむつ1の正面図であり、図2はその背面図である。図3は、使い捨ておむつ1の腹側部材2及び背側部材3を形成するための裁断予定線、伸長状態の弾性部材及び非弾性領域を示す図である。図4は、使い捨ておむつ1の各弾性部材が伸長された状態での展開図である。図5は、使い捨ておむつ1の股部材4の弾性部材を伸長した状態での正面図である。図6は、図5の股部材4のVI−VI線に沿った模式的断面図である。
図1及び図2に示すように、本実施形態の使い捨ておむつ1は、着用時に着用者の腹側に位置する腹側部材2と、背側に位置する背側部材3と、これらの各中央部2c,3cに架け渡されて接合された股部材4とを備える。腹側部材2及び背側部材3は、腹側部材2の胴周り方向の両端部2a,2b及び背側部材3の胴周り方向の両端部3a,3bに沿って形成される両接合部5a,5bで、互いに接合される。両接合部5a,5bの下部及びその周辺には、位置決め用接合部K1,K2が形成されている。腰開口部6は、腹側部材2の上端縁7及び背側部材3の上端縁8に囲まれて形成される。左右の脚開口部9a,9bは、腹側部材2の下端縁10と、背側部材3の下端縁11と、股部材4の左側縁4a又は右側縁4bとに囲まれて形成される。
One exemplary embodiment of the present invention is described below.
FIG. 1 is a front view of a pants-type disposable diaper 1 which is a disposable underwear according to this embodiment, and FIG. 2 is a rear view thereof. FIG. 3 is a diagram illustrating a cut line for forming the abdominal member 2 and the dorsal member 3 of the disposable diaper 1, an elastic member in an expanded state, and an inelastic region. FIG. 4 is a development view in a state where each elastic member of the disposable diaper 1 is extended. FIG. 5 is a front view of the disposable diaper 1 with the elastic member of the crotch member 4 extended. FIG. 6 is a schematic cross-sectional view taken along line VI-VI of the crotch member 4 of FIG.
As shown in FIG.1 and FIG.2, the disposable diaper 1 of this embodiment is the abdominal member 2 located in a wearer's abdominal side at the time of wear, the back | dorsal member 3 located in a back | dorsal side, and each of these center A crotch member 4 that is stretched over and joined to the portions 2c and 3c. The ventral member 2 and the dorsal member 3 are both joined portions 5a formed along both end portions 2a, 2b in the waist direction of the belly member 2 and both ends 3a, 3b in the waist direction of the dorsal member 3. 5b are joined together. Positioning joints K1 and K2 are formed below and around the joints 5a and 5b. The waist opening 6 is formed so as to be surrounded by the upper end edge 7 of the ventral member 2 and the upper end edge 8 of the dorsal member 3. The left and right leg openings 9 a and 9 b are formed by being surrounded by the lower end edge 10 of the ventral member 2, the lower end edge 11 of the back member 3, and the left or right edge 4 a or 4 b of the crotch member 4.

図1及び図2に示すように、腹側部材2及び背側部材3には、各胴周り方向に胴周り弾性部材12が延在している。腹側部材2の左右の脚開口部9a,9bには、第1弾性部材である第1脚周り弾性部材13が延在している。背側部材3の左右の脚開口部9a,9bには、第2脚周り弾性部材14が延在している。非弾性領域P1,P2,P3は、それぞれの領域内に延在する各弾性部材12,13,14の張力を消失させた領域である。腹側部材2及び背側部材3の腰開口部6及びその周辺には、腰周りギャザー15,15が形成されている。腹側部材2及び背側部材3の腰周りギャザー15,15の下には、胴周りギャザー16,16が形成されている。腹側部材2の左右の脚開口部9a,9bには、脚周りギャザー17,17が形成されている。背側部材3の左右の脚開口部9a,9bには、脚周りギャザー18,18が形成されている。股部材4の左右の脚開口部9a,9b及びその周辺の股部弾性部材25(すなわち、25a,25b及び25c)が延在する領域には、股部ギャザー19,19が形成されている。   As shown in FIGS. 1 and 2, a waist elastic member 12 extends in the waist direction on the abdominal member 2 and the back member 3. In the left and right leg openings 9a, 9b of the ventral member 2, a first leg elastic member 13 as a first elastic member extends. The elastic members 14 around the second leg extend in the left and right leg openings 9 a and 9 b of the back member 3. The non-elastic regions P1, P2, and P3 are regions in which the tensions of the elastic members 12, 13, and 14 extending in the respective regions are eliminated. Around the waist opening 6 of the abdominal member 2 and the back member 3 and the periphery thereof, waist gathers 15 and 15 are formed. Under the waist gathers 15 and 15 of the abdominal member 2 and the back member 3, waist circumference gathers 16 and 16 are formed. Leg gathers 17 and 17 are formed in the left and right leg openings 9a and 9b of the ventral member 2. Leg gathers 18 and 18 are formed in the left and right leg openings 9a and 9b of the back side member 3, respectively. Crotch gathers 19 and 19 are formed in regions where the left and right leg openings 9a and 9b of the crotch member 4 and the crotch elastic members 25 (that is, 25a, 25b, and 25c) around the crotch member 4 extend.

図3に示すように、使い捨ておむつ1の腹側部材2及び背側部材3は、着用時に着用者側に位置する内面シート101と、着用者と反対側に位置する外面シート102とが、それらの間に伸長状態で適宜配置された胴周り弾性部材12、第1脚周り弾性部材13及び第2脚周り弾性部材14を挟んで、貼り合わされた構造を含む積層体を、裁断予定線Cに沿って切り分けることによって形成される。腹側部材2の下端縁10及び背側部材3の下端縁11は、共通の裁断予定線Cで裁断されて形成されるものであり、伸展された状態で突き合わされたときに、一致する。   As shown in FIG. 3, the abdominal member 2 and the dorsal member 3 of the disposable diaper 1 are composed of an inner sheet 101 located on the wearer side when worn and an outer sheet 102 located on the opposite side of the wearer. The laminated body including the structure bonded together with the waist elastic member 12, the first leg elastic member 13 and the second leg elastic member 14 appropriately disposed in an extended state between the two is attached to the cutting line C. It is formed by cutting along. The lower end edge 10 of the ventral member 2 and the lower end edge 11 of the dorsal member 3 are formed by cutting along a common cutting line C, and match when they are abutted in an extended state.

使い捨ておむつ1の内面シート101及び外面シート102の材料は、ポリエチレン、ポリプロピレン、ポリエステル、ナイロン、レーヨン等の化学繊維、綿、セルロース等の天然繊維、又はこれらの組合せなどからなる不織布である。なお、該材料は、不織布に限らず、樹脂フィルム、ティッシュ、伸縮材、若しくは、それらの積層体、又はそれらを適宜つなぎ合わせてシート状としたものでもよい。   The material of the inner sheet 101 and the outer sheet 102 of the disposable diaper 1 is a non-woven fabric made of chemical fibers such as polyethylene, polypropylene, polyester, nylon, rayon, natural fibers such as cotton, cellulose, or combinations thereof. The material is not limited to a nonwoven fabric, but may be a resin film, a tissue, an elastic material, or a laminate thereof, or a sheet formed by appropriately connecting them.

図4に示すように、伸展された状態の腹側部材2は、長方形において一長辺の両端を除く部分が内側に略台形状に凹んだ形状をしている。腹側部材2の胴周り方向の両端部2a,2b及び上端縁7は、直線状である。腹側部材2の下端縁10は、一対の両端ライン10a,10aと、一対の傾斜ライン10b,10bと、中央ライン10cを含んでいる。両端ライン10a,10aは、腹側部材2の胴周り方向に略平行であり、両端部2a,2bから接合部5a,5bを少し越えた位置まで延びる。傾斜ライン10b,10bは、両端ライン10a,10aから、腹側部材2の股部材4と重なる領域である中央部2cの左右境界まで、上端縁7側へ次第に上昇して延びる。中央ライン10cは、胴周り方向に略平行であり、両傾斜ライン10b,10b間をつないでいる。   As shown in FIG. 4, the ventral member 2 in the extended state has a rectangular shape in which a portion excluding both ends of one long side is recessed in a substantially trapezoidal shape. Both end portions 2a and 2b and the upper end edge 7 of the ventral member 2 in the waist circumference direction are linear. The lower end edge 10 of the ventral member 2 includes a pair of both end lines 10a and 10a, a pair of inclined lines 10b and 10b, and a center line 10c. The both end lines 10a and 10a are substantially parallel to the waist direction of the abdominal member 2, and extend from both end portions 2a and 2b to positions slightly beyond the joint portions 5a and 5b. The inclined lines 10b and 10b extend from the both end lines 10a and 10a to the left and right boundaries of the central portion 2c, which is a region overlapping the crotch member 4 of the abdominal member 2, and gradually rise toward the upper edge 7 side. The center line 10c is substantially parallel to the trunk circumference direction, and connects the two inclined lines 10b and 10b.

図4に示すように、伸展された状態の背側部材3は、長方形において一長辺の両端を除く部分が外側に略台形状に突出した形状をしている。背側部材3の胴周り方向の両端部3a,3b及び上端縁8は、直線状である。背側部材3の下端縁11は、一対の両端ライン11a,11aと、一対の傾斜ライン11b,11bと、中央ライン11cを含んでいる。両端ライン11a,11aは、背側部材3の胴周り方向に略平行であり、両端部3a,3bから接合部5a,5bを少し越えた位置まで延びる。傾斜ライン11b,11bは、両端ライン11a,11aから、背側部材3の股部材4と重なる領域である中央部3cの左右境界まで、上端縁8と反対側へ次第に下降して(図4においては上昇して)延びる。中央ライン11cは、胴周り方向に略平行であり、両傾斜ライン11b,11b間をつないでいる。   As shown in FIG. 4, the extended dorsal member 3 has a rectangular shape in which a portion excluding both ends of one long side protrudes in a substantially trapezoidal shape to the outside. Both end portions 3a, 3b and upper end edge 8 of the back side member 3 in the waist circumference direction are linear. The lower end edge 11 of the back member 3 includes a pair of both end lines 11a and 11a, a pair of inclined lines 11b and 11b, and a center line 11c. Both end lines 11a and 11a are substantially parallel to the trunk direction of the back member 3 and extend from both end portions 3a and 3b to positions slightly beyond the joint portions 5a and 5b. The inclined lines 11b and 11b gradually descend from the both end lines 11a and 11a to the opposite side of the upper edge 8 from the left and right boundaries of the central portion 3c, which is an area overlapping the crotch member 4 of the back member 3 (in FIG. 4). Extends). The center line 11c is substantially parallel to the circumference direction of the trunk, and connects the two inclined lines 11b and 11b.

図4に示すように、腹側部材2の胴周り方向ないし左右方向の長さ、すなわち腹側部材2の直線状の上端縁7の長さは、背側部材3の胴周り方向ないし左右方向の長さ、すなわち背側部材3の直線状の上端縁8の長さと略等しい。また、腹側部材2の股上、すなわち腹側部材2の上端縁7から下端縁10までの距離は、両接合部5a,5b付近で最長となり、股部材4と重なる中央部2cの左右境界付近で最短となる。背側部材3の股上、すなわち背側部材3の上端縁8から下端縁11までの距離は、両接合部5a,5b付近で最短となり、股部材4と重なる中央部3cの左右境界付近で最長となる。腹側部材2の両端部2a,2b、背側部材3の両端部3a,3b、及び両部材の接合部5a,5bの各股上は略等しい。腹側部材2の接合部5a,5bでの股上と腹側部材2の中央部2cの左右境界での股上との差、及び、背側部材3の中央部3cの左右境界での股上と背側部材3の接合部5a,5bでの股上との差は、大人用の使い捨ておむつでは、3〜12cmであり、より望ましくは5〜9cmである。   As shown in FIG. 4, the length of the abdominal member 2 in the circumferential direction or the horizontal direction, that is, the length of the straight upper edge 7 of the abdominal member 2 is the circumferential direction or the lateral direction of the back side member 3. Is substantially equal to the length of the straight upper edge 8 of the back member 3. Further, the crotch of the abdominal member 2, that is, the distance from the upper end edge 7 to the lower end edge 10 of the abdominal member 2 is the longest in the vicinity of both joint portions 5 a and 5 b, and near the left and right boundaries of the central portion 2 c overlapping the crotch member 4. Is the shortest. The crotch of the dorsal member 3, that is, the distance from the upper end edge 8 to the lower end edge 11 of the dorsal member 3 is the shortest in the vicinity of both joints 5 a and 5 b and the longest in the vicinity of the left and right boundaries of the central part 3 c overlapping the crotch member 4. It becomes. The both ends 2a and 2b of the abdominal member 2, the both ends 3a and 3b of the back member 3, and the joints 5a and 5b of both members are substantially equal. The difference between the rise at the joints 5a and 5b of the ventral member 2 and the rise at the left and right boundaries of the central portion 2c of the ventral member 2, and the rise and dorsal side at the left and right boundaries of the central portion 3c of the dorsal member 3 In the adult disposable disposable diaper, the difference from the rise at the joints 5a and 5b of the member 3 is 3 to 12 cm, and more desirably 5 to 9 cm.

図4に示すように、股部材4は、腹側部材2及び背側部材3の各中央部2c,3cの内面シート101,101に接合される。内面シート101が使い捨ておむつ1の内側になるように股部材4を二つ折りして、腹側部材2の両端部2a,2bを、背側部材3の両端部3a,3bにそれぞれ重ね合わせる。重ね合わせた両端部2a,3a及び2b,3bに沿って接合部5a,5bが形成される。接合部5a,5bは、接着剤による接着、ヒートシール、超音波シール等の様々なシール方法で形成することができる。接合部5a,5bは、腹側部材2及び背側部材3の上端縁7,8と、下端縁の平行な両端ライン10a,10b,11a,11bとの間の領域に形成される。そのため、両端部2a,2b,3a,3bの上下長全体に沿って、且つ十分な幅で、接合部5a,5bを形成することができる。接合部5a,5bは、両端部2a,2b,3a,3bの上下長全体に亘って間欠的に形成される。なお、接合部5a,5bは、これに限られず、両端部2a,2b,3a,3bの上下長全体に亘って連続的に形成されてもよい。   As shown in FIG. 4, the crotch member 4 is joined to the inner surface sheets 101, 101 of the central portions 2 c, 3 c of the abdominal member 2 and the back member 3. The crotch member 4 is folded in half so that the inner sheet 101 is inside the disposable diaper 1, and both end portions 2 a and 2 b of the abdominal member 2 are overlapped with both end portions 3 a and 3 b of the back member 3. Joined portions 5a and 5b are formed along the overlapped end portions 2a and 3a and 2b and 3b. The joint portions 5a and 5b can be formed by various sealing methods such as adhesion using an adhesive, heat sealing, and ultrasonic sealing. The joint portions 5a and 5b are formed in regions between the upper end edges 7 and 8 of the abdominal side member 2 and the back side member 3 and parallel both end lines 10a, 10b, 11a and 11b of the lower end edge. Therefore, the joining portions 5a and 5b can be formed along the entire vertical length of both end portions 2a, 2b, 3a and 3b and with a sufficient width. The joint portions 5a and 5b are formed intermittently over the entire vertical length of both end portions 2a, 2b, 3a and 3b. In addition, the junction parts 5a and 5b are not restricted to this, You may form continuously over the whole up-and-down length of both ends 2a, 2b, 3a, and 3b.

図4に示すように、腹側部材2及び背側部材3の胴周り方向の両端部2a,3a及び2b,3bに沿って形成された接合部5a,5bの下部及びその周辺には、接合部5a,5bの一部に重なって形成された位置決め用接合部K1,K2が形成されている。位置決め用接合部K1は端部2a,3aに接しておらず、位置決め用接合部K2は端部2b,3bに接していない。なお、これに限らず、位置決め用接合部は、前記各端部に接していてもよい。また、位置決め用接合部は、接合部5a,5bに重ならずに、接合部5a,5bの一部として形成されてもよい。また、位置決め用接合部は、接合部5a,5bに重ならずに、接合部5a,5bの周辺に形成されてもよい。   As shown in FIG. 4, the lower part of the joint parts 5a and 5b formed along the two ends 2a, 3a and 2b and 3b in the circumference direction of the ventral member 2 and the back member 3 and the periphery thereof are joined. Positioning joints K1, K2 formed so as to overlap a part of the portions 5a, 5b are formed. The positioning joint K1 is not in contact with the ends 2a and 3a, and the positioning joint K2 is not in contact with the ends 2b and 3b. However, the present invention is not limited to this, and the positioning joint may be in contact with each of the end portions. Further, the positioning joint may be formed as a part of the joints 5a and 5b without overlapping the joints 5a and 5b. Further, the positioning joints may be formed around the joints 5a and 5b without overlapping the joints 5a and 5b.

図3及び図4に示すように、胴周り弾性部材12,第1弾性部材である第1脚周り弾性部材13,及び第2脚周り弾性部材14は、いずれも、一群の複数の糸状の弾性部材である。各糸状の弾性部材は、伸長された状態で、腹側部材2及び背側部材3を構成する内面シート101又は外面シート102上に適宜配置されて接着される。両シート101,102は、各弾性部材を間に挟んで、貼り合わされる。   As shown in FIGS. 3 and 4, the waist elastic member 12, the first leg elastic member 13 as the first elastic member, and the second leg elastic member 14 are all in a group of a plurality of thread-like elastic members. It is a member. Each thread-like elastic member is arranged and bonded as appropriate on the inner sheet 101 or the outer sheet 102 constituting the abdominal member 2 and the dorsal member 3 in a stretched state. Both sheets 101 and 102 are bonded together with each elastic member interposed therebetween.

図3及び図4に示すように、胴周り弾性部材12は、胴周り弾性部材12a,12b,12c,12d,12e,及び12fを含んでいる。胴周り弾性部材12a,12b,及び12cは、腹側部材2の胴周り方向に伸長された状態で配置されている。胴周り弾性部材12aは、腹側部材2の上端縁7に沿った腰開口部6及びその周辺の領域に配置されている。胴周り弾性部材12bは、胴周り弾性部材12aより下で腹側部材2の中央ライン10cより上の領域に配置されている。胴周り弾性部材12cは、胴周り弾性部材12bより下で、第1脚周り弾性部材13の両端部より上の領域に配置されている。図3に示すように、胴周り弾性部材12cは裁断予定線Cを横切る。そのため、胴周り弾性部材12cの一部は、背側部材3の中央ライン11cの周辺に延在している。   As shown in FIGS. 3 and 4, the waistline elastic member 12 includes waistline elastic members 12a, 12b, 12c, 12d, 12e, and 12f. The waistline elastic members 12 a, 12 b, and 12 c are arranged in a state of being stretched in the waistline direction of the ventral member 2. The waistline elastic member 12 a is disposed in the waist opening 6 along the upper end edge 7 of the abdominal member 2 and a region around it. The waistline elastic member 12b is disposed in a region below the waistline elastic member 12a and above the center line 10c of the ventral member 2. The waist elastic member 12c is disposed in a region below the waist elastic member 12b and above both ends of the first leg elastic member 13. As shown in FIG. 3, the waistline elastic member 12 c crosses the cut line C. Therefore, a part of the waistline elastic member 12 c extends around the center line 11 c of the back member 3.

図3及び図4に示すように、胴周り弾性部材12d,12e,及び12fは、背側部材3の胴周り方向に伸長された状態で配置されている。胴周り弾性部材12dは、背側部材3の上端縁8に沿った腰開口部6及びその周辺の領域に配置されている。胴周り弾性部材12eは、胴周り弾性部材12dより下、すなわち下端縁11側の領域に配置されている。胴周り弾性部材12fは、胴周り弾性部材12eより下、すなわち下端縁11側であって、第2脚周り弾性部材14より上、すなわち上端縁8側の領域に配置されている。背側部材3の胴周り弾性部材12d,12e,及び12fの配置された領域の上下長、すなわち胴周り方向と垂直な方向の長さは、それぞれ、腹側部材2の胴周り弾性部材12a,12b,及び12cの配置された領域の上下長と略等しい。   As shown in FIGS. 3 and 4, the waistline elastic members 12 d, 12 e, and 12 f are arranged in a state of being stretched in the waistline direction of the back side member 3. The waist elastic member 12d is disposed in the waist opening 6 along the upper end edge 8 of the back member 3 and a region around it. The waistline elastic member 12e is disposed below the waistline elastic member 12d, that is, in a region on the lower end edge 11 side. The waistline elastic member 12f is disposed below the waistline elastic member 12e, that is, on the lower end edge 11 side and above the second leg periphery elastic member 14, that is, on the upper end edge 8 side. The vertical length of the region where the waist elastic members 12d, 12e, and 12f of the back side member 3 are arranged, that is, the length in the direction perpendicular to the waist circumference direction, respectively, is the waist elastic member 12a, It is substantially equal to the vertical length of the region where 12b and 12c are arranged.

腹側部材2の胴周り弾性部材12a、12b、及び12cの中で、構成要素の糸状の各弾性部材の配列間隔は、胴周り弾性部材12aが最も狭く、胴周り弾性部材12bが2番目に狭く、胴周り弾性部材12cが最も広い。背側部材3の胴周り弾性部材12d,12e,及び12fの該配列間隔は、それぞれ、腹側部材2の胴周り弾性部材12a,12b,及び12cの該配列間隔と略等しい。なお、本実施形態では、胴周り弾性部材12aの構成要素である糸状の各弾性部材の配列間隔が略等しくなっているが、これに限らず、等間隔でなくてもよい。他の胴周り弾性部材12bから12fについても同様である。胴周り弾性部材12の配列間隔は、上記に限られず、着用者の身体各部の形状を考慮してフィット性や外観性の向上を図るために適宜調整することができる。   Among the waist elastic members 12a, 12b, and 12c of the abdominal member 2, the arrangement intervals of the thread-like elastic members of the constituent elements are the narrowest in the waist elastic member 12a and the second in the waist elastic member 12b. It is narrow and the waist elastic member 12c is the widest. The arrangement intervals of the waist elastic members 12d, 12e, and 12f of the back side member 3 are substantially equal to the arrangement intervals of the waist elastic members 12a, 12b, and 12c of the abdominal member 2, respectively. In the present embodiment, the arrangement intervals of the thread-like elastic members, which are constituent elements of the waistline elastic member 12a, are substantially equal. The same applies to the other waistline elastic members 12b to 12f. The arrangement | positioning space | interval of the waist elastic member 12 is not restricted above, In consideration of the shape of each part of a wearer's body, it can adjust suitably in order to aim at improvement of fit property or an external appearance property.

本実施形態では、腹側部材2の胴周り弾性部材12aから12c及び第1脚周り弾性部材13並びに第2脚周り弾性部材14は、単位長さ当たりの張力及び延伸倍率が同じである。これに対して、背側部材3の胴周り弾性部材12dから12fは、腹側部材2の胴周り弾性部材12aから12cよりも、延伸倍率が低くなっている。すなわち、腹側部材2の胴周り弾性部材12は、背側部材3の胴周り弾性部材12よりも、高い張力を有している。腹側部材2及び背側部材3は、胴周り方向の長さが略等しい。図1に示すように、腹側部材2が背側部材3よりも胴周り方向に縮んで、接合部5a,5bが使い捨ておむつ1の腹側部材2の側すなわち正面側に現れる。   In the present embodiment, the waist elastic members 12a to 12c, the first leg elastic member 13 and the second leg elastic member 14 of the ventral member 2 have the same tension and stretch ratio per unit length. On the other hand, the waist elastic members 12d to 12f of the back member 3 have a lower draw ratio than the waist elastic members 12a to 12c of the abdominal member 2. That is, the waist elastic member 12 of the abdominal member 2 has a higher tension than the waist elastic member 12 of the back member 3. The ventral member 2 and the dorsal member 3 have substantially the same length in the waist circumference direction. As shown in FIG. 1, the abdominal member 2 contracts in the waist direction more than the back member 3, and the joint portions 5 a and 5 b appear on the side of the abdominal member 2 of the disposable diaper 1, that is, the front side.

なお、本実施形態の変形例として、腹側部材2の胴周り弾性部材12の張力を、12a,12b,12cの順に高くしてもよい。また、背側部材3の胴周り弾性部材12の張力を、12d,12e,12fの順に高くしてもよい。このようにして、腹側部材2及び背側部材3の胴周り弾性部材12の張力が、腰開口部6から下方の脚開口部9a,9bへ向かって、領域毎に又は段階的に低くなるようにしてもよい。このように変形した使い捨ておむつ1は、腰開口部6が縮んで、腰開口部6から下方の脚開口部9a,9bへ向かって広がる形状とすることをより詳細に調節して、着用者へのフィット性を向上させることができる。なお、胴周り弾性部材12の張力は、腰開口部2から下方の脚開口部9a,9bへ向かって、領域毎にではなく、弾性部材1本ごとに次第に低くなるようにしてもよい。弾性部材の張力を異なるものとするためには、弾性部材の延伸倍率を異なるものとしてもよく、異なる弾性率の弾性部材を使用してもよい。   As a modification of the present embodiment, the tension of the waist elastic member 12 of the ventral member 2 may be increased in the order of 12a, 12b, and 12c. Further, the tension of the waist elastic member 12 of the back member 3 may be increased in the order of 12d, 12e, and 12f. In this way, the tension of the waist elastic member 12 of the abdominal member 2 and the back member 3 decreases from region to region or stepwise from the waist opening 6 toward the lower leg openings 9a, 9b. You may do it. The disposable diaper 1 deformed in this manner is adjusted in more detail so that the waist opening 6 contracts and expands from the waist opening 6 toward the lower leg openings 9a, 9b, to the wearer. The fitting property can be improved. Note that the tension of the waistline elastic member 12 may gradually decrease from the waist opening 2 toward the lower leg openings 9a and 9b not for each region but for each elastic member. In order to make the tension of the elastic member different, the stretching ratio of the elastic member may be different, or elastic members having different elastic moduli may be used.

図3及び図4に示すように、第1弾性部材である第1脚周り弾性部材13は、腹側部材2の左右の脚開口部9a,9bを形成する下端縁10に沿って延びるのではなく、腹側部材2の両接合部5a,5bの下部から胴周り方向の中央まで上端縁7側へ上昇して延在している。第1脚周り弾性部材13は、各接合部5a,5bの下部から、胴周り弾性部材12aの下端付近の中央へ向かう方向に、略直線状に延びている。第1脚周り弾性部材13が延在する、腹側部材2の股部材4と重なる領域及びその周辺の脚開口部9a,9bの領域は、着用者へのフィット性が良い。第1脚周り弾性部材13の中央部分は、緩やかな曲線状である。第1脚周り弾性部材13の張力は、第1脚周り弾性部材13が左接合部5aの下部から右接合部5bの下部まで直線状に延びるように働くので、腹側部材2の上端縁7の中央部7aを引き下げる力を生じさせる。これにより、使い捨て下着1は、腹側部材2の上端縁7の中央部7aが、背側部材3の上端縁8よりも下がっている。なお、第1脚周り弾性部材13を構成する各糸状の弾性部材は、並行しており、配列間隔が略等しいが、これに限らず、並行してなくてもよく、配列間隔が等しくなくてもよい。   As shown in FIGS. 3 and 4, the first leg elastic member 13, which is the first elastic member, does not extend along the lower edge 10 that forms the left and right leg openings 9 a and 9 b of the ventral member 2. Rather, it extends upward from the lower part of the joints 5a, 5b of the abdominal member 2 to the center in the waist circumference direction toward the upper edge 7. The first leg elastic member 13 extends substantially linearly from the lower part of each joint 5a, 5b in a direction toward the center near the lower end of the waist elastic member 12a. The region where the elastic member 13 around the first leg extends and the region overlapping the crotch member 4 of the abdominal member 2 and the region of the leg openings 9a, 9b around it have good fit to the wearer. The central portion of the first leg-hole elastic member 13 has a gentle curved shape. The tension of the first leg elastic member 13 is such that the first leg elastic member 13 extends linearly from the lower part of the left joint part 5a to the lower part of the right joint part 5b. The force which pulls down the center part 7a of this is produced. Thereby, the disposable underwear 1 is such that the central portion 7 a of the upper end edge 7 of the abdominal member 2 is lower than the upper end edge 8 of the dorsal member 3. In addition, although each thread-like elastic member which comprises the 1st leg periphery elastic member 13 is parallel and the arrangement space | interval is substantially equal, it is not restricted to this, It is not necessary to be parallel and the arrangement space | interval is not equal. Also good.

図3及び図4に示すように、第2脚周り弾性部材14は、背側部材3の両接合部5a,5の下部から中央ライン11cまで上端縁8と反対側へ下降して延在している。第2脚周り弾性部材14は、各接合部5a,5bの下部から、中央ライン11cの左右端部まで、略直線状に延びている。背側部材3の第2脚周り弾性部材14が延在する領域は、着用者へのフィット性が良い。第2脚周り弾性部材14は、背側部材3の股部材4と重なる中央部3c及びその左右周辺の領域で、胴周り弾性部材12cと交差している。図3に示すように、第2脚周り弾性部材14は、裁断予定線Cを横切る。そのため、第2脚周り弾性部材14の一部は、腹側部材2の中央部2cの領域に延在している。なお、第2脚周り弾性部材14を構成する各糸状の弾性部材は、並行しており、配列間隔が略等しいが、これに限らず、並行してなくてもよく、配列間隔が等しくなくてもよい。   As shown in FIGS. 3 and 4, the second leg-hole elastic member 14 extends downward from the lower part of the joints 5 a, 5 of the back side member 3 to the center line 11 c to the opposite side to the upper edge 8. ing. The second leg-hole elastic member 14 extends substantially linearly from the lower part of each joint 5a, 5b to the left and right ends of the center line 11c. The region where the elastic member 14 around the second leg of the back member 3 extends has good fit to the wearer. The second leg elastic member 14 intersects with the waist elastic member 12c in the central portion 3c overlapping the crotch member 4 of the back side member 3 and its left and right peripheral regions. As shown in FIG. 3, the second leg-hole elastic member 14 crosses the cut line C. Therefore, a part of the elastic member 14 around the second leg extends in the region of the central portion 2 c of the ventral member 2. The thread-like elastic members constituting the second leg-around elastic member 14 are parallel and have substantially the same arrangement interval. However, the arrangement is not limited to this, and the arrangement intervals are not equal. Also good.

胴周り弾性部材12,第1脚周り弾性部材13,及び第2脚周り弾性部材14を構成する各糸状の弾性部材は、天然ゴム、ポリウレタン系樹脂、伸縮性ホットメルト等の伸縮可能な材料により形成される。なお、各弾性部材12,13,14は、糸状の弾性部材に限らず、帯状やシート状の弾性部材を使用してもよい。また、腹側部材2又は背側部材3全体を伸縮性シートなどの素材で形成してもよい。シート状の弾性部材を使用する場合や、腹側部材2又は背側部材3全体を伸縮性シートで形成する場合には、張力が各弾性部材12,13、及び14の延在する方向に働くようにする必要がある。   Each thread-like elastic member constituting the waist elastic member 12, the first leg elastic member 13, and the second leg elastic member 14 is made of a stretchable material such as natural rubber, polyurethane resin, stretchable hot melt or the like. It is formed. The elastic members 12, 13, and 14 are not limited to thread-like elastic members, but may be band-like or sheet-like elastic members. Moreover, you may form the abdominal side member 2 or the back side member 3 whole with raw materials, such as an elastic sheet. When a sheet-like elastic member is used, or when the abdominal member 2 or the entire dorsal member 3 is formed of an elastic sheet, the tension acts in the extending direction of the elastic members 12, 13, and 14. It is necessary to do so.

図3及び図4において、非弾性領域P1、P2及びP3は、領域内の弾性部材の張力を消失させた領域である。弾性部材の張力を消失させる加工としては、例えば、多数の凸部やカッター刃等による弾性部材の切断や、熱シール等、適宜選択して行ってよい。   3 and 4, inelastic regions P1, P2, and P3 are regions in which the tension of the elastic member in the region is lost. As processing for eliminating the tension of the elastic member, for example, cutting of the elastic member with a large number of convex portions or cutter blades, heat sealing, or the like may be selected as appropriate.

図3及び図4に示すように、非弾性領域P1は、腹側部材2の胴周り方向の中央に、上端縁7側に頂点を有する三角形状に形成されている。非弾性領域P1の三角形の頂点は、腹側部材2の胴周り方向の中心線上であって、胴周り弾性部材12bの配置された領域の上端付近に位置している。非弾性領域P1の三角形の底辺は、下端縁10の中央ライン10c上に位置している。非弾性領域P1を形成されたことによって、胴周り弾性部材12bは中央部で分断され、下端縁10に近いほど、張力を消失した部分が長くなる。
なお、非弾性領域P1の形状は、三角形状に限られず、腹側部材2の上端縁7側に頂点を有する先細り形状であればよく、例えば、放物線状、円弧状などでもよい。
As shown in FIGS. 3 and 4, the non-elastic region P <b> 1 is formed in a triangular shape having a vertex on the upper edge 7 side at the center of the waist side direction of the ventral member 2. The apex of the triangle of the non-elastic region P1 is located on the center line in the waist direction of the ventral member 2 and near the upper end of the region where the waist elastic member 12b is disposed. The base of the triangle of the inelastic region P <b> 1 is located on the center line 10 c of the lower end edge 10. By forming the inelastic region P1, the waistline elastic member 12b is divided at the center, and the closer to the lower edge 10, the longer the portion where the tension disappears.
The shape of the non-elastic region P1 is not limited to a triangular shape, and may be a tapered shape having a vertex on the upper end edge 7 side of the ventral member 2, and may be a parabolic shape, an arc shape, or the like, for example.

図3及び図4に示すように、腹側部材2の胴周り弾性部材12aは、非弾性領域が形成されていないので、張力を有する部分が最も長い。胴周り弾性部材12bは、非弾性領域P1によって左右に分断され、張力を有する部分が下端縁10に近いほど短くなる。胴周り弾性部材12cは、下端縁10によって左右に分断されており、張力を有する部分は、胴周り弾性部材12bよりも短く、しかも下方に向かうほど短い。
このように、非弾性領域P1を形成することによって、腹側部材2は、腰開口部6から下方の脚開口部9a,9bへ向かうに従って、胴周り弾性部材12の張力を有する部分の長さが短くなる。そのため、図1に示すように、腹側部材2は、腰開口部6が縮んで、腰開口部6から下方の脚開口部9a,9bへ向かって緩やかに広がる形状となる。使い捨ておむつ1は、腰周りから両脚付け根へ向かって幅広となる体形を通常有する着用者へのフィット性が良い。
As shown in FIGS. 3 and 4, the waist elastic member 12 a of the abdominal member 2 has the longest portion having tension because no inelastic region is formed. The waist elastic member 12b is divided into left and right by the non-elastic region P1, and becomes shorter as the portion having tension is closer to the lower edge 10. The waistline elastic member 12c is divided into left and right by the lower end edge 10, and the portion having tension is shorter than the waistline elastic member 12b and further toward the lower side.
Thus, by forming the non-elastic region P1, the ventral member 2 has the length of the portion having the tension of the waistline elastic member 12 from the waist opening 6 toward the lower leg openings 9a and 9b. Becomes shorter. Therefore, as shown in FIG. 1, the abdominal member 2 has a shape in which the waist opening 6 contracts and gradually widens from the waist opening 6 toward the lower leg openings 9 a and 9 b. The disposable diaper 1 has good fit to a wearer who normally has a body shape that becomes wider from the waist to the base of both legs.

図1、図3及び図4に示すように、非弾性領域P1によって、第1脚周り弾性部材13は、その中央に三角形状に張力を消失した部分を形成され、張力を有する部分を中央で分断されている。しかし、左右の接合部5a,5bの下部から中央まで上端縁7側へ上昇して延びる略直線状部分には、非弾性領域がない。第1脚周り弾性部材13の左右に分断された張力を有する部分同士が、左接合部5aの下部から中央まで上端縁7側へ略直線状に上昇する方向の張力と、右接合部5bの下部から中央まで上端縁7側へ略直線状に上昇する方向の張力とで引き合うことによって、腹側部材2の中央部を引き下げる力を生じさせている。これにより、図1に示すように、使い捨ておむつ1は、腹側部材2の上端縁7が、その中央部7aを最下方位置として、背側部材3の上端縁8よりも下がっている。   As shown in FIGS. 1, 3 and 4, the inelastic region P <b> 1 forms a portion where the tension disappears in a triangular shape at the center of the first leg elastic member 13, and the portion having the tension is formed at the center. It is divided. However, there is no inelastic region in the substantially linear portion extending upward from the lower part to the center of the left and right joints 5a and 5b toward the upper edge 7. The portion of the first leg elastic member 13 having the tension divided to the left and right is a tension in a direction in which the portion of the right joint 5b rises substantially linearly from the lower part to the center of the left joint 5a toward the upper edge 7. By pulling with tension in a direction that rises substantially linearly toward the upper edge 7 from the lower part to the center, a force for lowering the central part of the ventral member 2 is generated. Thereby, as shown in FIG. 1, as for the disposable diaper 1, the upper end edge 7 of the abdominal side member 2 is falling rather than the upper end edge 8 of the back side member 3 by making the center part 7a into the lowest position.

図2から図4に示すように、非弾性領域P2は、背側部材3の中央部3cの中央ライン11c上に一長辺を有する略長方形状に形成されている。非弾性領域P2の左右幅は、非弾性領域P1の三角形の底辺の幅と同じである。非弾性領域P2を形成されたことによって、胴周り弾性部材12cの中央部、及び、第2脚周り弾性部材14の一部は、張力を消失されている。   As shown in FIGS. 2 to 4, the non-elastic region P <b> 2 is formed in a substantially rectangular shape having one long side on the central line 11 c of the central portion 3 c of the back member 3. The left-right width of the inelastic region P2 is the same as the width of the base of the triangle of the inelastic region P1. By forming the non-elastic region P2, the tension of the central portion of the waistline elastic member 12c and the part of the second leg periphery elastic member 14 is lost.

図2から図4に示すように、非弾性領域P3は、背側部材3の胴周り方向の中央に、上端縁8側を頂点とする略三角形と、該三角形の底辺と同幅の略長方形とを結合した形状、言わばホームベース形状に形成されている。非弾性領域P3の三角形部分の頂点は、背側部材3の胴周り方向の中心線上であって、胴周り弾性部材12eの配置された領域内の上部に位置している。非弾性領域P3の三角形部分の底辺は、胴周り弾性部材12eと胴周り弾性部材12fとの間に位置している。非弾性領域P3の長方形部分の下端縁11c側の底辺は、胴周り弾性部材12fより下端縁11側に位置している。非弾性領域P3の左右幅は、非弾性領域P1及びP2の各左右幅よりも大きい。非弾性領域P3を形成されたことによって、胴周り弾性部材12eは、中央部で分断され、下端縁11に近いほど、張力を消失した部分が長くなる。胴周り弾性部材12fは、その中央部に、張力を消失された部分が広がっている。なお、非弾性領域P3の形状は、ホームベース形状に限られず、背側部材3の上端縁8側に頂点を有する先細り形状であればよい。   As shown in FIGS. 2 to 4, the non-elastic region P <b> 3 has a substantially triangular shape with the top edge 8 as a vertex at the center of the back side member 3 in the waist circumference direction, and a substantially rectangular shape having the same width as the base of the triangle. Are formed into a home base shape. The apex of the triangular portion of the non-elastic region P3 is located on the center line in the waist circumference direction of the back side member 3 and in the upper part in the region where the waist circumference elastic member 12e is disposed. The base of the triangular portion of the inelastic region P3 is located between the waistline elastic member 12e and the waistline elastic member 12f. The bottom of the rectangular portion of the inelastic region P3 on the lower end edge 11c side is located closer to the lower end edge 11 than the waistline elastic member 12f. The left and right width of the inelastic region P3 is larger than the left and right widths of the inelastic regions P1 and P2. By forming the non-elastic region P3, the waistline elastic member 12e is divided at the center, and the closer to the lower edge 11, the longer the portion where the tension disappears. The waist elastic member 12f has a portion where the tension is lost spread at the center. The shape of the inelastic region P3 is not limited to the home base shape, and may be a tapered shape having a vertex on the upper edge 8 side of the back side member 3.

図3及び図4に示すように、背側部材3の胴周り弾性部材12dは、非弾性領域が形成されていないので、張力を有する部分が最も長い。胴周り弾性部材12eは、非弾性領域P3によって左右に分断され、張力を有する部分が下端縁11に近いほど短くなる。胴周り弾性部材12fは、非弾性領域P3によって左右に分断されており、張力を有する部分の長さは、胴周り弾性部材12eの最も下端縁11寄りにある張力を有する部分の長さと同じである。このように、非弾性領域P3を形成することによって、背側部材3は、腰開口部6から下方の脚開口部9a,9bへ向かうに従って、胴周り弾性部材12の張力を有する部分の長さが短くなる。そのため、図2に示すように、背側部材3は、腰開口部6が縮んで、腰開口部6から下方の脚開口部9a,9bへ向かって緩やかに広がる形状となる。使い捨ておむつ1は、腰周りから両脚付け根へ向かって幅広となる体形を通常有する着用者へのフィット性が良い。   As shown in FIGS. 3 and 4, the waist elastic member 12 d of the back member 3 has the longest portion having tension because no inelastic region is formed. The waistline elastic member 12e is divided into left and right by the non-elastic region P3, and becomes shorter as the portion having tension is closer to the lower end edge 11. The waist elastic member 12f is divided into left and right by the non-elastic region P3, and the length of the portion having the tension is the same as the length of the portion having the tension closest to the lower end edge 11 of the waist elastic member 12e. is there. In this way, by forming the non-elastic region P3, the back side member 3 has a length of a portion having tension of the waistline elastic member 12 from the waist opening 6 toward the lower leg openings 9a and 9b. Becomes shorter. Therefore, as shown in FIG. 2, the back side member 3 has a shape in which the waist opening 6 contracts and gradually widens from the waist opening 6 toward the lower leg openings 9 a and 9 b. The disposable diaper 1 has good fit to a wearer who normally has a body shape that becomes wider from the waist to the base of both legs.

図4に示すように、非弾性領域P1,P2,及びP3は、腹側部材2及び背側部材3に股部材4が接合されたときに、股部材4に配置される吸収体20の内側となる位置に、形成されている。非弾性領域P1,P2,及びP3によって、吸収体20を配置される領域に含まれる弾性部材の主要な部分は、張力を消失されている。これにより、弾性部材の張力より吸収体20が変形したり縮んだりするのが抑制される。   As shown in FIG. 4, the inelastic regions P <b> 1, P <b> 2, and P <b> 3 are inside the absorbent body 20 that is disposed on the crotch member 4 when the crotch member 4 is joined to the abdominal member 2 and the back member 3. It is formed in the position. By the inelastic regions P1, P2, and P3, the tension of the main portion of the elastic member included in the region where the absorber 20 is disposed is eliminated. This suppresses the absorber 20 from being deformed or contracted by the tension of the elastic member.

図1及び図2に示すように、腰周りギャザー15,15は、腹側部材2及び背側部材3の腰開口部6及びその周辺であって、胴周り弾性部材12a又は12dが配置された領域に形成されている。腰周りギャザー15,15は、使い捨ておむつ1の腰開口部6を着用者に適度に密着させて、おむつ1のずり下がりや、腰開口部6からの排泄物等の漏れを防止する。   As shown in FIG. 1 and FIG. 2, the waist gathers 15 and 15 are the waist opening 6 of the ventral member 2 and the back member 3 and the periphery thereof, and the waist elastic member 12 a or 12 d is disposed. Formed in the region. The waist gathers 15 and 15 appropriately attach the waist opening 6 of the disposable diaper 1 to the wearer to prevent the diaper 1 from sliding down and excrement from the waist opening 6.

図1及び図2に示すように、胴周りギャザー16,16は、腹側部材2及び背側部材3の腰周りギャザー15,15の領域の下で、胴周り弾性部材12b及び12c、又は、胴周り弾性部材12e及び12fが配置された領域に形成されている。胴周りギャザー16,16は、使い捨ておむつ1の腹側部材2及び背側部材3を着用者に適度に密着させ、かつ、非弾性領域P1,P2及びP3により股部材4及び吸収体20の変形を抑制されつつ、おむつのフィット性を高め、排泄物等の漏れを防止する。   As shown in FIGS. 1 and 2, the waist circumference gathers 16, 16 are located around the waist circumference gathers 15, 15 of the ventral member 2 and the back side member 3, and the waist circumference elastic members 12 b and 12 c, or It is formed in a region where the waist elastic members 12e and 12f are disposed. The waistline gathers 16, 16 allow the abdominal member 2 and the back member 3 of the disposable diaper 1 to be in close contact with the wearer, and the crotch member 4 and the absorbent body 20 are deformed by the non-elastic regions P1, P2, and P3. While being suppressed, it improves the fit of diapers and prevents leakage of excreta.

図1に示すように、脚周りギャザー17,17は、腹側部材2の左右の脚開口部9a,9b及びその周辺であって、第1脚周り弾性部材13が配置された領域に形成されている。図1及び図2に示すように、脚周りギャザー18,18は、背側部材3の左右の脚開口部9a,9b及びその周辺であって、第2脚周り弾性部材14が配置された領域に形成されている。脚周りギャザー17,17及び18,18は、使い捨ておむつ1の左右の脚開口部9a,9bを着用者に適度に密着させ、脚開口部9a,9bからの排泄物等の漏れを防止する。   As shown in FIG. 1, the leg circumference gathers 17, 17 are formed in the left and right leg openings 9 a, 9 b of the ventral member 2 and the periphery thereof and in the region where the first leg circumference elastic member 13 is disposed. ing. As shown in FIGS. 1 and 2, the leg gathers 18 and 18 are the left and right leg openings 9a and 9b of the back side member 3 and the periphery thereof, and the region where the second leg elastic member 14 is disposed. Is formed. The leg gathers 17, 17 and 18, 18 allow the left and right leg openings 9 a, 9 b of the disposable diaper 1 to be in close contact with the wearer to prevent leakage of excrement etc. from the leg openings 9 a, 9 b.

図4から図6に示すように、股部材4は、股部材本体である股部シート4と、吸収材21を上層ティッシュ22a及び下層ティッシュ22bで包んだ吸収体20と,トップシート23と、バックシート24と、股部シート4に伸長された状態で適宜配置される股部弾性部材25と、腹側接合部J1及び背側接合部J2を含んでいる。   As shown in FIG. 4 to FIG. 6, the crotch member 4 includes a crotch sheet 4 that is a crotch member body, an absorbent body 20 in which an absorbent material 21 is wrapped with an upper layer tissue 22a and a lower layer tissue 22b, a top sheet 23, It includes a back sheet 24, a crotch elastic member 25 that is appropriately arranged in a state of being stretched on the crotch sheet 4, and a ventral joint part J <b> 1 and a back joint part J <b> 2.

図4に示すように、股部材4の本体である股部シート4は、腹側部材2の中央部2cと背側部材3の中央部3cとに架け渡されて、各内面シート101上に接合される。股部シート4は、腹側部材2に重なる面のほぼ全面である腹側接合部J1、及び、背側部材3に重なる面のほぼ全面である背側接合部J2を、それぞれ腹側部材2及び背側部材3に接着剤で接合される。股部シート4の材料は、不織布を使用しているが、これに限らず、腹側部材2及び背側部材3の内面シート101及び外面シート102と同様の材料を使用することができる。   As shown in FIG. 4, the crotch sheet 4, which is the main body of the crotch member 4, is bridged between the central part 2 c of the abdominal member 2 and the central part 3 c of the dorsal member 3, and is placed on each inner sheet 101. Be joined. The crotch sheet 4 includes a ventral member 2 that includes a ventral joint portion J1 that is substantially the entire surface overlapping the ventral member 2 and a dorsal joint portion J2 that is approximately the entire surface overlapping the dorsal member 3. And it joins to the back side member 3 with an adhesive agent. The crotch sheet 4 is made of non-woven fabric, but is not limited to this, and the same material as the inner sheet 101 and the outer sheet 102 of the abdominal member 2 and the dorsal member 3 can be used.

図4から図6に示すように、股部シート4は、腹側部材2と背側部材3に架け渡される方向を長手方向とする、略長方形状である。股部シート4の腹側端縁4cは、腹側部材2の胴周り弾性部材12aと胴周り弾性部材12bとの間に位置する。股部シート4の背側端縁4dは、背側部材3の胴周り弾性部材12eの領域内の上部に位置する。股部シート4の幅方向の両端部が吸収体20側へ折り返され、その折り目が股部材4の左右側縁4a,4bを形成している。股部シート4の折り返し片の端縁4e,4fは、股部シート4に配置される吸収体20の最大幅部分の左右の外縁に位置する。なお、これに限らず、股部シート4の折り返し片の端縁4e,4fは、吸収体20の内縁に位置してもよい。股部材4の幅、すなわち左右側縁4a,4b間の距離は、吸収体20の最大幅よりも広くなっている。なお、股部シート4の形状は、略長方形状に限られず、腹側端縁又は背側端縁が曲線である帯状であってもよい。股部材4が腹側部材2又は背側部材3に接合される位置及び大きさは、前記したものに限られず、おむつのサイズや形状に合わせて適宜変更してよい。   As shown in FIGS. 4 to 6, the crotch sheet 4 has a substantially rectangular shape in which the direction spanning the abdominal member 2 and the back member 3 is the longitudinal direction. The abdominal side edge 4c of the crotch sheet 4 is located between the waistline elastic member 12a and the waistline elastic member 12b of the abdominal side member 2. The back side edge 4d of the crotch seat 4 is located in the upper part in the region of the waist elastic member 12e of the back side member 3. Both end portions in the width direction of the crotch sheet 4 are folded back toward the absorbent body 20, and the folds form left and right side edges 4 a and 4 b of the crotch member 4. The end edges 4 e and 4 f of the folded piece of the crotch sheet 4 are positioned on the left and right outer edges of the maximum width portion of the absorbent body 20 disposed on the crotch sheet 4. However, the present invention is not limited thereto, and the end edges 4e and 4f of the folded piece of the crotch sheet 4 may be positioned on the inner edge of the absorbent body 20. The width of the crotch member 4, that is, the distance between the left and right side edges 4 a and 4 b is wider than the maximum width of the absorbent body 20. In addition, the shape of the crotch sheet | seat 4 is not restricted to substantially rectangular shape, The strip | belt shape whose abdominal side edge or back | dorsal side edge is a curve may be sufficient. The position and size at which the crotch member 4 is joined to the ventral member 2 or the back member 3 are not limited to those described above, and may be appropriately changed according to the size and shape of the diaper.

図4から図6に示すように、吸収体20は、股部シート4の中央に配置される。吸収体20の長手方向の長さは、股部シート4の長手方向の長さより少し短い。吸収体20の長さは、着用者の鼠蹊部上端から仙骨上端までの長さが好ましい。吸収体20の腹側の最大幅は、着用者の鼠蹊部の幅に合わせることが好ましい。吸収体20の背側の最大幅は、腹側の最大幅と同じであるが、これに限らず、腹側の最大幅より大きくしてもよい。吸収体20は、砂時計形状に形成されており、最大幅を有する腹側幅広部20a及び背側幅広部20cの間に、最小幅を有するくびれ部20bを有している。吸収体20は、吸収紙、綿状パルプ、高分子吸収材などの組合せで構成されており、尿や血液などの液状体を素早く吸収して、内部に保持する。   As shown in FIGS. 4 to 6, the absorbent body 20 is disposed in the center of the crotch sheet 4. The length of the absorbent body 20 in the longitudinal direction is slightly shorter than the length of the crotch sheet 4 in the longitudinal direction. The length of the absorbent body 20 is preferably the length from the upper end of the wearer's buttocks to the upper end of the sacrum. The maximum width of the absorbent body 20 on the ventral side is preferably matched to the width of the wearer's buttocks. The maximum width on the back side of the absorbent body 20 is the same as the maximum width on the ventral side, but is not limited thereto, and may be larger than the maximum width on the ventral side. The absorber 20 is formed in an hourglass shape, and has a constricted portion 20b having a minimum width between the abdomen wide portion 20a having the maximum width and the back wide portion 20c. The absorbent body 20 is composed of a combination of absorbent paper, cotton-like pulp, a polymer absorbent, and the like, and quickly absorbs liquid materials such as urine and blood and holds them inside.

図6に示すように、吸収体20は、下から順に、下層ティッシュ22b、吸収材21、上層ティッシュ22aが積層されており、上層ティッシュ22aの上に下層ティッシュ22bの折り返し片が重ねられて接合された構造を有する。吸収材21は、粉砕パルプと高分子吸収材を混合して成形される。上層ティッシュ22aは、吸収材21の上面全体を覆う吸収紙である。下層ティッシュ22bは、吸収材21の下面全体を覆う吸収紙である。   As shown in FIG. 6, the absorbent body 20 has a lower layer tissue 22b, an absorbent material 21, and an upper layer tissue 22a laminated in order from the bottom, and a folded piece of the lower layer tissue 22b is laminated on the upper layer tissue 22a. Has a structured. The absorbent material 21 is formed by mixing pulverized pulp and a polymer absorbent material. The upper layer tissue 22 a is absorbent paper that covers the entire top surface of the absorbent material 21. The lower layer tissue 22 b is absorbent paper that covers the entire lower surface of the absorbent material 21.

図6に示すように、股部材4は、下から順に、股部シート4、バックシート24、吸収体20、トップシート23が積層され、トップシート23の上に股部シート4の折り返し片が重ねられ接合された構造を有する。トップシート23は、吸収体20の上面全体を覆うシート部材であり、使い捨ておむつ1の内側において着用者の肌に触れる側に配置される。トップシート23は、例えば、不織布などの液透過性材料から形成され、おむつ1内に排出された尿や血液等を透過させて、吸収体20へ送る。バックシート24は、吸収体20の下面全体を覆うシート部材であり、股部シート4上に固定される。バックシート24は、例えば、ポリエチレンフィルムなどの液不透過性材料から形成され、トップシート23を透過した液状体、吸収体20が吸収しきれなかった液状体が股部シート4や外部へ漏れるのを防止する。   As shown in FIG. 6, the crotch member 4 has a crotch sheet 4, a back sheet 24, an absorbent body 20, and a top sheet 23 stacked in order from the bottom, and a folded piece of the crotch sheet 4 is placed on the top sheet 23. It has a stacked and bonded structure. The top sheet 23 is a sheet member that covers the entire top surface of the absorbent body 20, and is disposed on the inner side of the disposable diaper 1 on the side that touches the wearer's skin. The top sheet 23 is formed of a liquid permeable material such as a nonwoven fabric, and transmits urine, blood, etc. discharged into the diaper 1 and sends it to the absorber 20. The back sheet 24 is a sheet member that covers the entire lower surface of the absorbent body 20, and is fixed on the crotch sheet 4. The back sheet 24 is formed of, for example, a liquid-impermeable material such as a polyethylene film, and a liquid material that has permeated through the top sheet 23 and a liquid material that the absorber 20 has not absorbed can leak to the crotch sheet 4 and the outside. To prevent.

図4から図6に示すように、股部弾性部材25は、股部側縁弾性部材25a、腹側接続弾性部材25b、股部底弾性部材25cを含んでいる。股部弾性部材25はいずれも、股部シート4の長手方向に伸長された状態で配置される。各股部弾性部材25の破線で示した部分は、伸張された状態の各股部弾性部材25が股部シート4と接着剤などで接合される部分であり、張力を有する部分である。股部弾性部材25は、胴周り弾性部材12、第1脚周り弾性部材13、及び第2脚周り弾性部材14よりも、高い張力を有している。股部弾性部材25のうち、腹側接続弾性部材25bは、最も高い張力を有している。   As shown in FIGS. 4 to 6, the crotch elastic member 25 includes a crotch side edge elastic member 25a, an abdominal side connection elastic member 25b, and a crotch bottom elastic member 25c. All of the crotch elastic members 25 are arranged in a state of being stretched in the longitudinal direction of the crotch sheet 4. A portion indicated by a broken line of each crotch elastic member 25 is a portion where each crotch elastic member 25 in an expanded state is joined to the crotch sheet 4 with an adhesive or the like and has a tension. The crotch elastic member 25 has higher tension than the waist elastic member 12, the first leg elastic member 13, and the second leg elastic member 14. Of the crotch elastic member 25, the ventral connection elastic member 25b has the highest tension.

図4から図6に示すように、股部側縁弾性部材25aは、股部シート4とその左右の折り返し片との間で接合される。股部側縁弾性部材25aは、股部材4の左右端部4a,4bである折り目に1本ずつ、それより中央寄りに1本ずつ、配置されている。股部側縁弾性部材25aの張力を有する部分は、腹側部材2に重ねられて接合される腹側接合部J1、及び、背側部材3に重ねられて接合される背側接合部J2との間に、間隙を有している。言わば、股部側縁弾性部材25aは、腹側接合部J1及び腹側部材2に接続されておらず、背側接合部J2及び背側部材3にも接続されていない。使い捨ておむつ1が着用されたときに、股部側縁弾性部材25aの張力を有する部分は、腹側の端部が、着用者の恥骨付近に位置し、背側の端部が、着用者の坐骨付近に位置することが好ましい。   As shown in FIGS. 4 to 6, the crotch side edge elastic member 25 a is joined between the crotch sheet 4 and the left and right folded pieces. The crotch side edge elastic members 25a are arranged one by one at the folds that are the left and right end portions 4a and 4b of the crotch member 4, and one by one closer to the center. The portions of the crotch side edge elastic member 25a having the tension are the abdominal side joint portion J1 that is overlapped and joined to the abdominal side member 2, and the back side joint portion J2 that is overlapped and joined to the back side member 3. There is a gap between them. In other words, the crotch side edge elastic member 25a is not connected to the abdominal side joint portion J1 and the abdominal side member 2, and is not connected to the back side joint portion J2 and the back side member 3. When the disposable diaper 1 is worn, the part having the tension of the crotch side edge elastic member 25a has the abdomen end located near the wearer's pubic bone, and the dorsal end is the wearer's pubic bone. It is preferably located near the sciatica.

図4から図6に示すように、腹側接続弾性部材25bは、股部シート4とバックシート24との間で接着材などで接合される。腹側接続弾性部材25bは、左右の股部側縁弾性部材25aより中央側に、1本ずつ配置されている。腹側接続弾性部材25bは、吸収体20の腹側の最大幅部分20aの左右外縁に沿って、股部材4の長手方向に延在している。腹側接続弾性部材25bの張力を有する部分の腹側の端部は、股部材4の腹側接合部J1に重なる位置にある。股部材4が腹側接合部J1で腹側部材2に接合されることにより、腹側接続弾性部材25bは腹側部材2に接続される。腹側接続弾性部材25bの背側の端部は、股部材4の背側接合部J2に重ならず、背側部材3に接続されない。腹側接続弾性部材25bの背側の端部は、股部側縁弾性部材25aの背側の端部よりも、腹側接合部J1寄りにある。使い捨ておむつ1が着用されたとき、腹側接続弾性部材25bの張力を有する部分は、腹側の端部が、着用者の鼠蹊部上部に位置し、背側の端部が、着用者の坐骨付近に位置することが好ましい。
図1に示すように、腹側部材2に接続された腹側接続弾性部材25bの張力は、腹側部材2の胴周り弾性部材12及び第1脚周り弾性部材13に対して横切る方向に働いて、腹側部材2を股部材4側に引き寄せるので、腹側部材2の上端縁7の中央部7aを引き下げる。
As shown in FIGS. 4 to 6, the ventral connection elastic member 25 b is joined between the crotch sheet 4 and the back sheet 24 with an adhesive or the like. One ventral-side connecting elastic member 25b is disposed on the center side of the left and right crotch side edge elastic members 25a. The ventral connection elastic member 25 b extends in the longitudinal direction of the crotch member 4 along the left and right outer edges of the maximum width portion 20 a on the ventral side of the absorbent body 20. The abdomen end of the portion having the tension of the abdomen connection elastic member 25b is in a position overlapping the abdomen joint J1 of the crotch member 4. When the crotch member 4 is joined to the ventral member 2 at the ventral junction J1, the ventral connection elastic member 25b is connected to the ventral member 2. The end on the back side of the ventral connection elastic member 25 b does not overlap the back side joint J <b> 2 of the crotch member 4 and is not connected to the back side member 3. The back side end portion of the ventral side connection elastic member 25b is closer to the ventral side joint portion J1 than the back side end portion of the crotch side edge elastic member 25a. When the disposable diaper 1 is worn, the portion having the tension of the ventral connection elastic member 25b is such that the ventral end is located at the upper part of the wearer's buttocks and the dorsal end is the wearer's sciatic bone It is preferably located in the vicinity.
As shown in FIG. 1, the tension of the abdominal connection elastic member 25 b connected to the abdominal member 2 works in a direction transverse to the waist elastic member 12 and the first leg elastic member 13 of the abdominal member 2. Thus, since the abdominal member 2 is pulled toward the crotch member 4, the central portion 7a of the upper end edge 7 of the abdominal member 2 is pulled down.

使い捨ておむつ1が着用者に着用されるとき、股部材4の一対の腹側接続弾性部材25b,25bが腹側部材2に接続されており、腹側部材2と股部材4は互いに引き合うので、着用者へのフィット性が高い。一対の腹側接続弾性部材25b,25bは、吸収体20の腹側の最大幅部分の両外縁に位置しており、着用者の鼠蹊部の両外側に位置する。股部材4の左右側部は、股部側縁弾性部材25a及び腹側接続弾性部材25bを長手方向に沿って接合されており、ギャザーが形成される。股部材4のギャザーを形成された左右側部は、腹側部材2に接続された腹側接続弾性部材25bの張力により、両側壁のように立ち上がり、立体ギャザーの機能を発揮する。股部側縁弾性部材25aは腹側部材2にも背側部材3にも接続されていないので、股部材4の幅は、着用者の体形や動きに応じて伸縮可能である。このようにして、股部材4は、着用者の腹側から股間にかけての部分の側面及び底面を覆う立体的な形状となり、フィット性が高い。股部材4は、股部側縁弾性部材25a、腹側接続弾性部材25bの張力によって立体的形状を維持し、股部材4の左右側縁4a,4bからの排泄物の漏れを防止できる。   When the disposable diaper 1 is worn by the wearer, the pair of abdominal connection elastic members 25b, 25b of the crotch member 4 are connected to the abdomen member 2, and the abdomen member 2 and the crotch member 4 attract each other. High fit for the wearer. A pair of abdominal side connection elastic members 25b and 25b are located in both the outer edges of the maximum width part of the abdominal side of absorber 20, and are located in the both outsides of a wearer's buttocks. The left and right side portions of the crotch member 4 are joined together along the longitudinal direction of the crotch side edge elastic member 25a and the abdominal side connection elastic member 25b to form a gather. The left and right side portions where the gathers of the crotch member 4 are formed rise like the side walls due to the tension of the abdominal connection elastic member 25b connected to the abdominal member 2, and exhibit the function of a three-dimensional gather. Since the crotch side edge elastic member 25a is not connected to the abdominal member 2 or the back member 3, the width of the crotch member 4 can be expanded and contracted according to the body shape and movement of the wearer. In this way, the crotch member 4 has a three-dimensional shape that covers the side and bottom surfaces of the portion from the wearer's stomach side to the crotch, and has high fit. The crotch member 4 maintains a three-dimensional shape by the tension of the crotch side edge elastic member 25a and the abdominal side connection elastic member 25b, and can prevent leakage of excrement from the left and right side edges 4a and 4b of the crotch member 4.

図4に示すように、股部材4の背側部材3に接合される部分は、吸収体20の背側の最大幅よりも広い幅を有している。なお、本実施形態の吸収体20の背側の最大幅は、腹側の最大幅と同じであるが、これに限らず、腹側の最大幅より大きくしてもよい。股部弾性部材25は背側部材3に接続されていないので、着用者の動きにより股部弾性部材25が収縮しても、股部材4の背側部材3に接続された部分が動かない。これより、使い捨ておむつ1は、股部材4の背側の広い幅を着用者の臀部を覆うために使用することができる。   As shown in FIG. 4, the portion joined to the back side member 3 of the crotch member 4 has a width wider than the maximum width on the back side of the absorbent body 20. In addition, although the maximum width on the back side of the absorbent body 20 of the present embodiment is the same as the maximum width on the abdominal side, it is not limited thereto, and may be larger than the maximum width on the abdominal side. Since the crotch elastic member 25 is not connected to the back side member 3, even if the crotch elastic member 25 contracts due to the movement of the wearer, the portion of the crotch member 4 connected to the back side member 3 does not move. Thus, the disposable diaper 1 can be used to cover the wearer's buttocks with a wide width on the back side of the crotch member 4.

図4から図6に示すように、股部底弾性部材25cは、股部シート4とバックシート24との間で接合される。股部底弾性部材25cは、腹側接続弾性部材25b,25bより中央側に、1本ずつ配置されている。股部底弾性部材25cの張力を有する部分は、股部材4に配設される吸収体の形状に合わせて配置されるのが好ましい。吸収体20が砂時計形状である場合は、股部底弾性部材25cは、吸収体20の最小幅部分であるくびれ部20bの左右側縁と、吸収体20の腹側の最大幅部分の外縁にある腹側接続弾性部材25bとの間の隙間領域に、吸収体20に重ならないように配置される。股部底弾性部材25cは、上記隙間領域にギャザーを形成して、股部材4の底部のダブつきを抑え、着用者にフィットさせる。また、股部材4の底部の形状を安定させる。なお、股部底弾性部材25cは左右に1本ずつに限らず、複数本形成してもよい。吸収体20の腹側の最大幅と最小幅の差が小さく、上記隙間領域が小さい場合には、股部底弾性部材25cは無くてもよい。   As shown in FIGS. 4 to 6, the crotch bottom elastic member 25 c is joined between the crotch sheet 4 and the back sheet 24. The crotch bottom elastic members 25c are arranged one by one on the center side of the abdomen connection elastic members 25b and 25b. The portion having the tension of the crotch bottom elastic member 25 c is preferably arranged in accordance with the shape of the absorbent body disposed on the crotch member 4. When the absorbent body 20 has an hourglass shape, the crotch bottom elastic member 25c is formed on the left and right side edges of the constricted part 20b, which is the minimum width part of the absorbent body 20, and the outer edge of the maximum width part on the stomach side of the absorbent body 20. It arrange | positions so that it may not overlap with the absorber 20 in the clearance gap area between a certain abdominal side connection elastic member 25b. The crotch bottom elastic member 25c forms a gather in the gap area to prevent the bottom portion of the crotch member 4 from becoming duck and fit the wearer. Moreover, the shape of the bottom part of the crotch member 4 is stabilized. The crotch bottom elastic member 25c is not limited to one on each side, and a plurality of crotch bottom elastic members 25c may be formed. When the difference between the maximum width and the minimum width on the ventral side of the absorbent body 20 is small and the gap area is small, the crotch bottom elastic member 25c may be omitted.

本実施形態では、股部側縁弾性部材25aが左右2本ずつ、腹側接続弾性部材25bが左右1本ずつ、股部底弾性部材25cが左右1本ずつであるが、これに限られない。
股部弾性部材25は、胴周り弾性部材12,第1脚周り弾性部材13,第2脚周り弾性部材14と同様に、天然ゴム、ポリウレタン樹脂、伸縮性のホットメルト等の伸縮可能な糸状の材料により形成される。また、糸状の弾性部材だけでなく、帯状やシート状の弾性部材を使用することも可能である。また、股部ギャザー19が形成される領域全体を伸縮性シートなどの素材で形成してもよい。シート状の弾性部材を使用する場合や、股部ギャザー19が形成される領域全体を伸縮性シートで形成する場合には、張力が、糸状の各股部弾性部材25の延在する方向に働くようにする必要がある。
In the present embodiment, the crotch side edge elastic member 25a has two left and right portions, the abdominal side connection elastic member 25b has one left and right, and the crotch bottom elastic member 25c has one left and one right, but this is not limitative. .
Like the waist elastic member 12, the first leg elastic member 13, and the second leg elastic member 14, the crotch elastic member 25 is a thread-like elastic material such as natural rubber, polyurethane resin, and elastic hot melt. Formed by material. Further, not only a thread-like elastic member but also a band-like or sheet-like elastic member can be used. Moreover, you may form the whole area | region where the crotch part gathers 19 are formed with raw materials, such as an elastic sheet. When a sheet-like elastic member is used, or when the entire area where the crotch part gather 19 is formed is formed of an elastic sheet, the tension acts in the direction in which each thread-like crotch elastic member 25 extends. It is necessary to do so.

図7、図8、及び図9は、それぞれ、本実施形態の使い捨ておむつ1が着用された状態を示す正面図、背面図、及び左側面図である。破線A―Aは、着用者のへそ周りの水平ラインである。破線Bは、着用者の腸骨稜から上前腸骨棘に沿ったラインである。破線Z−Zは、着用者の垂直方向の中心線である。   FIGS. 7, 8, and 9 are a front view, a rear view, and a left side view, respectively, showing a state in which the disposable diaper 1 of the present embodiment is worn. Dashed line AA is a horizontal line around the wearer's navel. Dashed line B is a line from the wearer's iliac crest to the superior anterior iliac spine. A broken line ZZ is a center line in the vertical direction of the wearer.

図1及び図7に示すように、本実施形態の使い捨ておむつ1は、腹側部材2の第1脚周り弾性部材13が、両接合部5a,5bから胴周り方向の中央まで上端縁7側へ略直線状に延在している。第1脚周り弾性部材13は、胴周り弾性部材12よりも長い。第1脚周り弾性部材13は、非弾性領域P1によって中央で分断されているものの、各接合部5a,5bから胴周り方向の中央まで上端縁7側へ略直線状に延在する部分同士が、互いに引き合うことによって、腹側部材2の上端縁7の中央部7aを引き下げる。また、股部材4の腹側接続弾性部材25bは、腹側部材2に接続されており、腹側部材2の上端縁7の中央部7aを引き下げる。他方、腹側部材2には胴周り弾性部材12による胴周り方向の張力が働いているので、腹側部材2の上端縁7の中央部7aが下がるのを抑制する。また、非弾性領域P1は、腰開口部6から下方の脚開口部9a,9bへ向かうに従って、胴周り弾性部材12の張力を有する部分の長さを短くし、胴周り弾性部材12の張力を弱めているので、腹側部材2の上端縁7の中央部7aが引き下げられるのを助長する。更に、腹側部材2の胴周り弾性体12の張力は、背側部材3の胴周り弾性体13の張力よりも強いので、腹側部材2は背側部材3よりも胴周り方向に縮み、使い捨ておむつ1の胴周り方向の両端部に沿った接合部5a,5bの上部が、腹側部材2の中央側へ引き寄せられ、腹側部材2の上端縁7の中央部7aが引き下げられるのを助長する。このような第1脚周り弾性部材13、腹側接続弾性部材25b、胴周り弾性部材12、及び非弾性領域P1の作用のバランスした位置まで、腹側部材2の上端縁7が下がり、かかる位置で安定する。これにより、図1及び図7に示すように、使い捨ておむつ1は、腹側部材2の上端縁7が、その中央部7aを最下方として、背側部材3の上端縁8より下がっている。なお、本実施形態では、第1脚周り弾性部材13、腹側接続弾性部材25b、胴周り弾性部材12、及び非弾性領域P1の全てを用いて、使い捨ておむつ1の腹側部材2の上端縁7の中央部7aが背側部材3の上端縁8より下がることを達成しているが、これに限らず、第1脚周り弾性部材13、腹側接続弾性部材25b、胴周り弾性部材12、又は非弾性領域P1を単独で又は適宜組合せて用いることで達成してもよい。   As shown in FIGS. 1 and 7, the disposable diaper 1 according to this embodiment is configured so that the elastic member 13 around the first leg of the abdominal member 2 is on the upper edge 7 side from both joints 5a and 5b to the center in the waist circumference direction. It extends substantially linearly. The first leg elastic member 13 is longer than the waist elastic member 12. Although the first leg-hole elastic member 13 is divided at the center by the non-elastic region P1, the portions extending substantially linearly toward the upper edge 7 from the respective joint portions 5a and 5b to the center in the trunk-circumference direction are formed. By pulling each other, the central portion 7a of the upper end edge 7 of the ventral member 2 is pulled down. Further, the ventral connection elastic member 25 b of the crotch member 4 is connected to the ventral member 2 and pulls down the central portion 7 a of the upper end edge 7 of the ventral member 2. On the other hand, since the tension in the waist direction by the waist elastic member 12 is acting on the abdominal member 2, the central portion 7a of the upper end edge 7 of the abdominal member 2 is suppressed from falling. Further, the non-elastic region P1 shortens the length of the portion having the tension of the waistline elastic member 12 from the waist opening 6 toward the lower leg openings 9a and 9b, and the tension of the waistline elastic member 12 is reduced. Since it weakens, it helps that the center part 7a of the upper end edge 7 of the ventral member 2 is pulled down. Further, since the tension of the waist elastic member 12 of the abdominal member 2 is stronger than the tension of the waist elastic member 13 of the back member 3, the belly member 2 contracts in the waist direction more than the back member 3, The upper portions of the joint portions 5a and 5b along the both ends in the circumferential direction of the disposable diaper 1 are drawn toward the central side of the abdominal member 2, and the central portion 7a of the upper edge 7 of the abdominal member 2 is pulled down. To encourage. The upper end edge 7 of the ventral member 2 is lowered to such a position where the functions of the first leg elastic member 13, the ventral connection elastic member 25b, the waist elastic member 12, and the non-elastic region P1 are balanced, and such a position. It stabilizes at. Thereby, as shown in FIG.1 and FIG.7, as for the disposable diaper 1, the upper end edge 7 of the abdominal side member 2 is lower than the upper end edge 8 of the back side member 3 by making the center part 7a into the lowest part. In this embodiment, the upper end edge of the abdominal member 2 of the disposable diaper 1 using all of the first leg elastic member 13, the ventral connection elastic member 25b, the waist elastic member 12, and the non-elastic region P1. 7 has achieved that the central portion 7a of the back side member 3 is lowered from the upper end edge 8 of the back side member 3, but not limited thereto, the first leg elastic member 13, the ventral connection elastic member 25b, the waist elastic member 12, Alternatively, the non-elastic region P1 may be used alone or in combination as appropriate.

図7及び図9に示すように、使い捨ておむつ1が着用されたとき、腹側部材2の上端縁7は、着用者のへそ周りラインAより下方にある。腹側部材2の上端縁7は、両接合部5a,5bから、着用者の腸骨稜から上前腸骨棘を通るラインBの角度に合わせて下降し、上端縁7の中央部7aを最下方とする。これにより、使い捨ておむつ1は、腹側部材2の胴周り弾性部材12がへそ周りを通らないので、へそ周りを圧迫しない。また、使い捨ておむつ1は、腰開口部6が腸骨稜の上に掛かって止まるので、着用位置が安定する。また、脚周り弾性部材13は、着用者の動いた脚に当たることで、元の位置に戻りやすいので、使い捨ておむつ1の着用位置が安定する。また、使い捨ておむつ1は、股上、特に腹側の股上が短いので、ズボンやスカートからはみ出さない。また、使い捨ておむつ1は、着用者の腹側を覆う面積が小さいので着用感が良く、少ない資材で製造できる。   As shown in FIGS. 7 and 9, when the disposable diaper 1 is worn, the upper end edge 7 of the ventral member 2 is below the navel line A of the wearer. The upper edge 7 of the ventral member 2 descends from the joints 5a and 5b according to the angle of the line B passing through the upper anterior iliac spine from the wearer's iliac crest, and the central portion 7a of the upper edge 7 is The lowest part. Thereby, since the waist circumference elastic member 12 of the abdominal member 2 does not pass the circumference of the navel, the disposable diaper 1 does not press the circumference of the navel. Moreover, since the waist opening part 6 is hung on the iliac crest and the disposable diaper 1 stops, a wearing position is stabilized. Moreover, since the leg-holes elastic member 13 is easy to return to the original position by hitting the leg which the wearer moved, the wearing position of the disposable diaper 1 is stabilized. The disposable diaper 1 does not protrude from the trousers or the skirt because the crotch, particularly the abdomen's crotch, is short. Moreover, since the area which covers a wearer's belly side is small, the disposable diaper 1 has a good wearing feeling, and can be manufactured with few materials.

図1及び図2に示すように、腹側部材2の上端縁7側に頂点を有する略三角形状である非弾性領域P1、及び、背側部材3の上端縁8側に先細りの略ホームベース形状である非弾性領域P3は、腰開口部6から下方の脚開口部9a,9bへ向かうに従って、胴周り弾性部材12の張力を有する部分の長さを短くし、胴周り弾性部材12の胴周り方向の張力を弱めている。そのため、腹側部材2及び背側部材3は、腰開口部6が縮んで、腰開口部6から下方の脚開口部9a,9bへ向かって広がる形状となる。これにより、図7及び図8に示すように、使い捨ておむつ1は、着用者の腰周りから両脚付け根へ向かって幅広となる体形に良くフィットし、着用者が座位や前屈姿勢を取っても、腰開口部6が下がることを抑制する。また、図8の背面図に示すように、使い捨ておむつ1が着用者に着用されたとき、背側部材3は、上端縁8が着用者のへそ周りの水平ラインA−Aより少し下に略水平に位置しており、着用者の骨盤を覆う広さがある。   As shown in FIGS. 1 and 2, the non-elastic region P <b> 1 having a substantially triangular shape having a vertex on the upper end edge 7 side of the abdominal side member 2, and the substantially home base tapered on the upper end edge 8 side of the back side member 3. The inelastic region P3 having a shape shortens the length of the portion having the tension of the waist elastic member 12 from the waist opening 6 toward the lower leg openings 9a and 9b. The tension in the surrounding direction is weakened. Therefore, the ventral member 2 and the dorsal member 3 have a shape in which the waist opening 6 contracts and widens from the waist opening 6 toward the lower leg openings 9a and 9b. Thereby, as shown in FIG.7 and FIG.8, the disposable diaper 1 fits well into the body shape which becomes wide toward a base of both legs from a waist circumference of a wearer, and even if a wearer takes a sitting position or a forward bending posture. The lowering of the waist opening 6 is suppressed. Moreover, as shown in the rear view of FIG. 8, when the disposable diaper 1 is worn by the wearer, the dorsal member 3 has an upper edge 8 that is substantially below the horizontal line AA around the navel of the wearer. It is located horizontally and covers the wearer's pelvis.

図9に示すように、使い捨ておむつ1が着用されたとき、着用者のへそ周りの水平ラインA−Aに対して、腹側部材2の上端縁7及び背側部材3の上端縁8で囲まれて形成される腰開口部6は、腸骨稜から上前腸骨棘を通るラインBの角度に合わせて、腹側部材2の上端縁7の中央部7aが下がった斜めのラインになる。また、腹側部材2の胴周り弾性部材12は、背側部材3の胴周り弾性部材12よりも高い張力を有しているので、着用者の垂直方向の中心線Z−Zに対して、腹側部材2と背側部材3の接合部5bは、上端部が腹側にあり、下端部が背側にある、斜めのラインになる。更に、腹側部材2の股部材4との境界付近は上下長つまり股上が短く、背側部材3の中央部の上下長つまり股上は長いので、腹側部材2の下端縁10及び背側部材3の下端縁11で形成される脚開口部9bは、斜めのラインになる。このように、使い捨ておむつ1は、着用者の中心線Z−Zに対して、斜めに着用されており、腹側部材2の股上を短くする一方で、背側部材3の股上を長くし、両者の股上を必要且つ十分で無駄のない長さにすることができる。   As shown in FIG. 9, when the disposable diaper 1 is worn, it is surrounded by the upper edge 7 of the abdominal member 2 and the upper edge 8 of the dorsal member 3 with respect to the horizontal line AA around the wearer's navel. The formed waist opening 6 is an oblique line in which the central portion 7a of the upper edge 7 of the ventral member 2 is lowered in accordance with the angle of the line B passing from the iliac crest to the upper anterior iliac spine. . Further, the waist elastic member 12 of the abdominal member 2 has a higher tension than the waist elastic member 12 of the back member 3, so that the wearer's vertical center line ZZ is The joint 5b between the ventral member 2 and the dorsal member 3 is an oblique line with the upper end on the ventral side and the lower end on the dorsal side. Further, the upper and lower lengths, that is, the crotch is short near the boundary between the abdominal member 2 and the crotch member 4, and the upper and lower lengths, that is, the crotch of the central portion of the back side member 3 are long. 3, the leg opening 9b formed by the lower end edge 11 is an oblique line. Thus, the disposable diaper 1 is worn obliquely with respect to the wearer's center line ZZ, shortening the rise of the abdominal member 2, while increasing the rise of the dorsal member 3, Both of the crests can be made as long as necessary, sufficient and without waste.

次に、本実施形態の使い捨ておむつ1の製造方法について説明する。
図3に示すように、まず、内面シート101又は外面シート102に、各弾性部材12,13,14を適宜配置して接着する。このとき、糸状の各弾性部材の表面に接着剤等が塗布されていてもよいし、スプレーコート等により、内面シート101及び外面シート102の弾性部材を挟む面に接着剤を塗布されていてもよい。糸状の各弾性部材は、それぞれ、必要となる張力に応じて伸長された状態で、内面シート101及び外面シート102に接合される。次に、各弾性部材12,13,14を間に挟んで、内面シート101及び外面シート102を貼り合わせて、積層体を形成する。次に、積層体に弾性部材12,13,又は14の一部の張力を消失させる加工を行って、非弾性領域P1、P2,P3を形成する。弾性部材の張力を消失させる加工としては、例えば、多数の凸部やカッター刃等による弾性部材の切断や、熱シール等、適宜選択して行ってよい。次に、該積層体を裁断予定線Cに沿って切断して、腹側部材2と背側部材3とに切り分ける。
Next, the manufacturing method of the disposable diaper 1 of this embodiment is demonstrated.
As shown in FIG. 3, first, the elastic members 12, 13, and 14 are appropriately disposed and bonded to the inner sheet 101 or the outer sheet 102. At this time, an adhesive or the like may be applied to the surface of each thread-like elastic member, or an adhesive may be applied to the surface of the inner sheet 101 and the outer sheet 102 between the elastic members by spray coating or the like. Good. Each thread-like elastic member is joined to the inner surface sheet 101 and the outer surface sheet 102 in a state where the elastic members are stretched according to necessary tension. Next, the inner sheet 101 and the outer sheet 102 are bonded to each other with the elastic members 12, 13, 14 interposed therebetween to form a laminate. Next, the laminated body is processed to eliminate the tension of a part of the elastic member 12, 13, or 14 to form the non-elastic regions P1, P2, P3. As processing for eliminating the tension of the elastic member, for example, cutting of the elastic member with a large number of convex portions or cutter blades, heat sealing, or the like may be selected as appropriate. Next, the laminate is cut along a cutting line C, and is cut into the abdominal member 2 and the back member 3.

次に、図4に示すように、腹側部材2と背側部材3との間隔を広げる。次に、股部材4の一方の端部を腹側部材2に、他方の端部を背側部材3に、ホットメルト等の接着剤によって接合する。これにより、図4に示すように伸展された状態の使い捨て下着1が形成される。次に、腹側部材2及び背側部材3の内面シート101が内側となるように、股部材4を二つ折りして、腹側部材2及び背側部材3を重ね合わせる。次に、重ね合わせた腹側部材2及び背側部材3の両端部に沿って、熱シール、超音波シール、接着剤(ホットメルト)等により接合部5a,5bを形成して、腹側部材2と背側部材3を接合する。更に、積層体が腹側部材2及び背側部材3が流れ方向に同じ向きで連続する積層体である場合には、接合部5a,5bに沿って積層体を切断する。このようにして、使い捨ておむつ1が製造される。なお、腹側部材2及び背側部材3の両端部に沿った接合部を形成する前に、接合部の一部として又は接合部の一部に重なって又は接合部の周辺に、腹側部材2と背側部材3を部分的に接合する位置決め用接合部K1,K2を形成することを追加してもよい。   Next, as shown in FIG. 4, the interval between the ventral member 2 and the dorsal member 3 is increased. Next, one end of the crotch member 4 is joined to the ventral member 2 and the other end is joined to the back member 3 by an adhesive such as hot melt. Thereby, the disposable underwear 1 in a stretched state is formed as shown in FIG. Next, the crotch member 4 is folded in two so that the inner sheet 101 of the abdominal member 2 and the back member 3 is inside, and the abdominal member 2 and the back member 3 are overlapped. Next, joint portions 5a and 5b are formed by heat sealing, ultrasonic sealing, adhesive (hot melt) or the like along both ends of the overlapped belly member 2 and back member 3, and the belly member 2 and the back member 3 are joined. Furthermore, when the laminated body is a laminated body in which the ventral member 2 and the back member 3 are continuous in the same direction in the flow direction, the laminated body is cut along the joint portions 5a and 5b. In this way, the disposable diaper 1 is manufactured. In addition, before forming the junction part along the both ends of the abdominal member 2 and the back member 3, the abdominal member as a part of the junction part, overlapping with the part of the junction part, or around the junction part It may be added to form positioning joints K1 and K2 that partially join 2 and the back member 3 together.

上述のように、本実施形態によれば、股上が短く、着用者のへそ周りを圧迫せず、着用位置が安定し、省資源である、使い捨ておむつ1を提供することができる。   As described above, according to the present embodiment, it is possible to provide a disposable diaper 1 that has a short rise, does not press around the wearer's navel, has a stable wearing position, and saves resources.

(第2実施形態)
次に、本発明の他の実施形態の使い捨て下着について述べる。
図10は、本実施形態の使い捨ておむつ30の弾性部材を伸長した状態での展開図である。前述の実施形態と同様の構造及び機能を有する構成要素は、同一の符号を付し、または、重複する説明を適宜省略する。本実施形態の使い捨ておむつ30は、非弾性領域P31、P32、P33の形状が異なることを除き、前述の実施形態の使い捨ておむつ1と同じである。
(Second Embodiment)
Next, a disposable underwear according to another embodiment of the present invention will be described.
FIG. 10 is a development view of the disposable diaper 30 according to the present embodiment with the elastic member extended. Constituent elements having the same structure and function as those of the above-described embodiment are denoted by the same reference numerals, or redundant descriptions are omitted as appropriate. The disposable diaper 30 of the present embodiment is the same as the disposable diaper 1 of the above-described embodiment except that the shapes of the inelastic regions P31, P32, and P33 are different.

本実施形態の使い捨ておむつ30は、前述した実施形態の使い捨ておむつ1と異なり、非弾性領域P31の三角形の頂点が、第1脚周り弾性部材13の中央の下部に位置しており、第1脚周り弾性部材13及び胴周り弾性部材12bの各々の中央の上部が分断されていない。また、非弾性領域P31、P32,P33の幅が、吸収体20の最大幅部分を越えて、股部材4の左右端縁4a,4b近傍まで広がっている。また、ホームベース形状の非弾性領域P33の三角形部分の頂点が、吸収体20及び股部材4の腹側端縁4dを越えてはみ出して形成されている。   Unlike the disposable diaper 1 of the above-described embodiment, the disposable diaper 30 of the present embodiment has the apex of the triangle of the non-elastic region P31 located at the lower part of the center of the elastic member 13 around the first leg. The upper part of the center of each of the surrounding elastic member 13 and the waist elastic member 12b is not divided. Further, the widths of the inelastic regions P31, P32, and P33 extend beyond the maximum width portion of the absorbent body 20 to the vicinity of the left and right end edges 4a and 4b of the crotch member 4. Further, the apex of the triangular portion of the home base-shaped inelastic region P33 is formed so as to protrude beyond the absorbent body 20 and the ventral end edge 4d of the crotch member 4.

使い捨ておむつ30は、非弾性領域P31によって第1脚周り弾性部材13の中央の上部が分断されていないので、分断されていない第1脚周り弾性部材13の張力は、第1脚周り弾性部材13が左接合部5aの下部から右接合部5bの下部まで直線状に延びるように働くので、腹側部材2の中央部を引き下げる力が、使い捨ておむつ1の非弾性領域P1よりも強くなる。他方、非弾性領域P31によって分断されていない胴周り弾性部材12bもある。両者のバランスを適宜調整することにより、使い捨ておむつ30は、腹側部材2の上端縁7の中央部7aが、背側部材3の上端縁8より下がる。   In the disposable diaper 30, since the upper part of the center of the first leg elastic member 13 is not divided by the non-elastic region P31, the tension of the first leg elastic member 13 which is not divided is the first leg elastic member 13. Since it works so that it may extend linearly from the lower part of the left joint part 5a to the lower part of the right joint part 5b, the force which pulls down the center part of the abdominal member 2 becomes stronger than the non-elastic area P1 of the disposable diaper 1. On the other hand, there is also a waist elastic member 12b that is not divided by the non-elastic region P31. By appropriately adjusting the balance between the two, in the disposable diaper 30, the central portion 7 a of the upper end edge 7 of the abdominal member 2 is lowered from the upper end edge 8 of the dorsal member 3.

使い捨ておむつ30は、使い捨ておむつ1と比べて、非弾性領域P31、P32,P33の幅が、吸収体20の最大幅部分を越えて、股部材4の左右端縁4a,4b近傍まで広がっている。非弾性領域P31によって、腹側部材2の股部材4と重なる領域に延在した第2脚周り弾性部材14が全て張力を消失されるので、腹側部材2と股部材4との接続部分のしわの発生を抑制できる。また、非弾性領域P32によって、背側部材3の中央ライン11C付近の弾性部材の大部分の張力を消失させられるので、股部材4の背側部材3に接続される部分は、胴回り方向に縮むのが抑制され、着用者の臀部を広く覆うことができる。また、非弾性領域P33によって、股部材4の背側部材3と重なる部分に延在する胴周り弾性部材12e,12fの大部分の効力を消失させられるので、股部材4及び吸収体20が縮んだり変形したりするのを抑制できる。   Compared with the disposable diaper 1, the disposable diaper 30 has the widths of the non-elastic regions P31, P32 and P33 extending beyond the maximum width portion of the absorbent body 20 to the vicinity of the left and right end edges 4a and 4b of the crotch member 4. . The tension of all the elastic members 14 around the second leg extending in the region overlapping the crotch member 4 of the abdominal member 2 is eliminated by the non-elastic region P31, so that the connection portion between the abdominal member 2 and the crotch member 4 is reduced. Generation of wrinkles can be suppressed. Moreover, since the tension | tensile_strength of most elastic members of the central line 11C vicinity of the back side member 3 is lose | disappeared by the non-elastic area | region P32, the part connected to the back side member 3 of the crotch member 4 shrinks in a waistline direction. Is suppressed, and the wearer's buttocks can be covered widely. In addition, since the most elastic effects of the waist elastic members 12e and 12f extending to the portion overlapping the back side member 3 of the crotch member 4 are lost by the non-elastic region P33, the crotch member 4 and the absorbent body 20 are contracted. Suppressing or deforming can be suppressed.

使い捨ておむつ30は、非弾性領域P33の三角形部分の頂点が、吸収体20及び股部材4の腹側の端縁4dを越えて、はみ出して形成されているので、背側部材3の胴周り弾性部材12e,12fの張力を消失される部分の左右幅及び上下範囲が大きくなる。そのため、背側部材3は、腰開口部6から脚開口部9a,9bへ向かって、胴周り弾性部材12の張力が弱くなる程度が大きくなるので、腰開口部6が縮んで、腰開口部6から脚開口部9a,9bへ向かって広がる形状になるのが一層容易になる。   The disposable diaper 30 is formed so that the apex of the triangular portion of the non-elastic region P33 protrudes beyond the absorbent body 20 and the ventral end edge 4d of the crotch member 4, so that the waist elastic of the back member 3 is elastic. The left and right widths and vertical ranges of the portions where the tension of the members 12e and 12f is lost are increased. For this reason, the back side member 3 increases in the degree that the tension of the waist elastic member 12 becomes weaker from the waist opening 6 toward the leg openings 9a and 9b. It becomes easier to have a shape that widens from 6 toward the leg openings 9a, 9b.

なお、使い捨ておむつ1及び使い捨ておむつ30では、腹側部材2及び背側部材3の股部材4の重なる領域にある中央ライン10c及び中央ライン11cが、胴周り方向に平行な直線状であったが、これに限らず、腹側部材2の中央ライン10cが上端縁7側に緩やかに突出する曲線状に形成され、背側部材3の中央ライン11cが、突き合わせた際に中央ライン10cと一致するように、背側部材3の上端縁8と反対側に緩やかに突出する曲線状に形成されてもよい。使い捨ておむつ30や、上述した変形例は、前述した使い捨ておむつ1と同様の製造方法によって製造可能である。   In the disposable diaper 1 and the disposable diaper 30, the central line 10c and the central line 11c in the region where the crotch member 4 of the abdominal member 2 and the dorsal member 3 overlap each other are straight lines parallel to the waistline direction. The center line 10c of the ventral member 2 is formed in a curved shape that gently protrudes toward the upper edge 7 and the center line 11c of the dorsal member 3 coincides with the center line 10c when abutting. In this way, the back member 3 may be formed in a curved shape that gently protrudes on the opposite side to the upper end edge 8. The disposable diaper 30 and the modified example described above can be manufactured by the same manufacturing method as the disposable diaper 1 described above.

(第3実施形態)
次に、本発明の更に他の実施形態の使い捨て下着について述べる。
図11は、本実施形態の使い捨ておむつ60の弾性部材を伸長した状態での展開図である。前述の実施形態の使い捨ておむつ1と同様の構造及び機能を有する構成要素には、同一の符号を付して、又は、重複する説明を適宜省略する。本実施形態の使い捨ておむつ60は、前述の実施形態の使い捨ておむつ1と比べて、腹側部材62の下端縁66及び背側部材63の下端縁67の形状が異なり、腹側部材62の胴周り弾性部材12の構成要素の本数が異なり、第1脚周り弾性部材68及び第2脚周り弾性部材69が異なり、非弾性領域P61、P62,P63の形状が異なる。
(Third embodiment)
Next, a disposable underwear according to still another embodiment of the present invention will be described.
FIG. 11 is a development view of the disposable diaper 60 of the present embodiment in a state where the elastic member is extended. Constituent elements having the same structure and function as the disposable diaper 1 of the above-described embodiment are given the same reference numerals, or redundant descriptions are omitted as appropriate. The disposable diaper 60 of this embodiment differs in the shape of the lower end edge 66 of the abdominal side member 62 and the lower end edge 67 of the back side member 63 compared with the disposable diaper 1 of above-mentioned embodiment, The waist circumference of the abdominal side member 62 The number of components of the elastic member 12 is different, the first leg elastic member 68 and the second leg elastic member 69 are different, and the shapes of the inelastic regions P61, P62, and P63 are different.

図11に示すように、本実施形態の使い捨ておむつ60は、腹側部材62、背側部材63、股部材4を備え、腹側部材62及び背側部材63は両接合部5a,5bで接合される。腹側部材62の上端縁7及び背側部材63の上端縁8に囲まれて腰開口部6が形成され、腹側部材62の下端縁66、背側部材63の下端縁67、及び、股部材4の左側縁4a又は右側縁4bに囲まれて左右の脚開口部が形成される。腹側部材62及び背側部材63には胴周り弾性部材12が延在し、腹側部材62の左右の脚開口部には第1脚周り弾性部材68が延在し、背側部材63の左右の脚開口部には第2脚周り弾性部材69が延在している。股部材4は、吸収体20、股部弾性部材25などを備えている。   As shown in FIG. 11, the disposable diaper 60 of this embodiment is provided with the abdominal side member 62, the back side member 63, and the crotch member 4, and the abdominal side member 62 and the back side member 63 are joined by both joining parts 5a and 5b. Is done. A waist opening 6 is formed surrounded by the upper end edge 7 of the ventral member 62 and the upper end edge 8 of the dorsal member 63. The lower end edge 66 of the ventral member 62, the lower end edge 67 of the dorsal member 63, and the crotch Left and right leg openings are formed surrounded by the left edge 4a or the right edge 4b of the member 4. The waist elastic member 12 extends to the ventral member 62 and the back member 63, and the first leg elastic member 68 extends to the left and right leg openings of the ventral member 62. Elastic members 69 around the second leg extend in the left and right leg openings. The crotch member 4 includes an absorber 20, a crotch elastic member 25, and the like.

本実施形態の使い捨ておむつ60は、腹側部材62の下端縁66が、一対の略平行な両端ライン66a,66aと、両端ライン66a,66aから股部材4の左右端部4a,4bへ次第に上昇する一対の傾斜ライン66b,66bと、略平行な中央ライン66cと、傾斜ライン66b,66bから中央ライン66cへ緩やかに湾曲して下降する湾曲ライン66d、66dとからなる点で、使い捨ておむつ1の腹側部材2の下端縁10とは相違する。使い捨ておむつ60は、使い捨ておむつ1と比べて、傾斜ライン66b、66bの傾きがより急である。湾曲ライン66d,66dと股部材4の左右端部4a,4bとの交点における股上、すなわち上端縁7と下端縁66との距離が、使い捨ておむつ1のものよりも短い。そのため、使い捨ておむつ60は、着用されたときに、着用者の脚を動かしやすい。   In the disposable diaper 60 of the present embodiment, the lower end edge 66 of the abdominal member 62 gradually rises from a pair of substantially parallel both end lines 66a, 66a and from the both end lines 66a, 66a to the left and right end portions 4a, 4b of the crotch member 4. Of the disposable diaper 1 in that it comprises a pair of inclined lines 66b, 66b, a substantially parallel central line 66c, and curved lines 66d, 66d that gently curve and descend from the inclined lines 66b, 66b to the central line 66c. It differs from the lower end edge 10 of the ventral member 2. In the disposable diaper 60, the inclination of the inclined lines 66b and 66b is steeper than that of the disposable diaper 1. The crotch at the intersection of the curved lines 66d, 66d and the left and right ends 4a, 4b of the crotch member 4, that is, the distance between the upper edge 7 and the lower edge 66 is shorter than that of the disposable diaper 1. Therefore, the disposable diaper 60 is easy to move the wearer's leg when worn.

使い捨ておむつ60は、第1脚周り弾性部材68が、腹側部材62の接合部5a,5bから胴周り弾性部材12aの中央下部まで上昇して、股部材4より上まで延びており、使い捨ておむつ1の第1脚周り弾性部材13よりも上端縁7に近い位置まで延びている。第1脚周り弾性部材68を構成する各糸状の弾性部材の配置間隔が、使い捨ておむつ1のものよりも広くなっている。また、第1脚周り弾性部材68は、その下端部にのみ、非弾性領域P61が形成されている。そのため、第1脚周り弾性部材68が左接合部5aの下部から右接合部5bの下部まで直線状に延びるように働く張力は、前述した各実施形態の使い捨ておむつ1や使い捨ておむつ30よりも強いので、腹側部材62の上端縁7の中央部7aを引き下げる力が一層強くなる。   The disposable diaper 60 has a first leg elastic member 68 extending from the joints 5a and 5b of the abdominal member 62 to the lower center of the waist elastic member 12a and extending above the crotch member 4, so that the disposable diaper It extends to a position closer to the upper end edge 7 than the elastic member 13 around the first leg. The arrangement | positioning space | interval of each thread-like elastic member which comprises the 1st leg periphery elastic member 68 is wider than the thing of the disposable diaper 1. FIG. Further, the first leg elastic member 68 has a non-elastic region P61 formed only at the lower end thereof. Therefore, the tension | tensile_strength which works so that the 1st leg periphery elastic member 68 may extend linearly from the lower part of the left junction part 5a to the lower part of the right junction part 5b is stronger than the disposable diaper 1 and the disposable diaper 30 of each embodiment mentioned above. Therefore, the force which pulls down the center part 7a of the upper end edge 7 of the abdominal side member 62 becomes still stronger.

他方、使い捨ておむつ60は、腹側部材62の胴周り弾性部材12b及び12cを構成する糸状の弾性部材の本数が、使い捨ておむつ1のものと比べて、各1本ずつ少ない。そのため、腹側部材62の胴周り弾性部材12の張力は、使い捨ておむつ1のものよりも弱くなっている。そのため、使い捨ておむつ60は、使い捨ておむつ1、使い捨ておむつ30に比べて、腹側部材62の上端縁7の中央部7aが、背側部材63の上端縁8より大きく下るようにすることができる。使い捨ておむつ60は、前述した使い捨ておむつ1と同様の製造方法によって製造可能である。   On the other hand, in the disposable diaper 60, the number of thread-like elastic members constituting the waist elastic members 12b and 12c of the abdominal member 62 is smaller than that of the disposable diaper 1 one by one. Therefore, the tension of the waist elastic member 12 of the abdominal member 62 is weaker than that of the disposable diaper 1. Therefore, compared to the disposable diaper 1 and the disposable diaper 30, the disposable diaper 60 can be configured such that the central portion 7 a of the upper end edge 7 of the abdominal member 62 is lower than the upper end edge 8 of the dorsal member 63. The disposable diaper 60 can be manufactured by the same manufacturing method as the disposable diaper 1 described above.

(第4実施形態)
次に、本発明のさらに他の実施形態の使い捨て下着について述べる。
図12は、本実施形態の使い捨ておむつ70の弾性部材を伸長した状態での展開図である。前述の実施形態の使い捨ておむつ1と同様の構造及び機能を有する構成要素には、同一の符号を付し、または、重複する説明を適宜省略する。前述した実施形態の使い捨ておむつ1は、図4に示すように、伸展された状態の腹側部材2が、長方形において一長辺が内側に略台形状に凹んだ形状である。これに対して、図12に示すように、本実施形態の使い捨ておむつ70は、腹側部材72が略長方形状である。
(Fourth embodiment)
Next, a disposable underwear according to still another embodiment of the present invention will be described.
FIG. 12 is a development view of the disposable diaper 70 of the present embodiment in a state where the elastic member is extended. Constituent elements having the same structure and function as the disposable diaper 1 of the above-described embodiment are given the same reference numerals, or redundant descriptions are omitted as appropriate. As shown in FIG. 4, the disposable diaper 1 of the embodiment described above has a shape in which the abdominal member 2 in a stretched state is rectangular and one long side is recessed in a substantially trapezoidal shape inside. On the other hand, as shown in FIG. 12, in the disposable diaper 70 of the present embodiment, the ventral member 72 has a substantially rectangular shape.

図12に示すように、本実施形態の使い捨ておむつ70は、腹側部材72、背側部材3、股部材4を備える。腹側部材72及び背側部材3は両接合部5a,5bで接合される。腹側部材72の上端縁7及び背側部材3の上端縁8で囲まれて腰開口部6が形成される。腹側部材72の下端縁76、背側部材3の下端縁11、及び、股部材4の左右側縁4a,4bで囲まれて左右の脚開口部が形成される。腹側部材72及び背側部材3には胴周り弾性部材12が延在し、背側部材3の左右の脚開口部には第2脚周り弾性部材79が延在している。股部材4は、吸収体20、股部弾性部材75などを備えている。   As shown in FIG. 12, the disposable diaper 70 of the present embodiment includes an abdominal member 72, a back member 3, and a crotch member 4. The ventral member 72 and the dorsal member 3 are joined at both joints 5a and 5b. A waist opening 6 is formed surrounded by the upper edge 7 of the abdominal member 72 and the upper edge 8 of the back member 3. Left and right leg openings are formed by being surrounded by the lower end edge 76 of the abdominal side member 72, the lower end edge 11 of the back side member 3, and the left and right side edges 4 a and 4 b of the crotch member 4. A waist elastic member 12 extends on the abdominal member 72 and the back member 3, and a second leg elastic member 79 extends on the left and right leg openings of the back member 3. The crotch member 4 includes an absorber 20, a crotch elastic member 75, and the like.

使い捨ておむつ70における第1弾性部材78は、腹側部材72の左右の脚開口部に延在せずに、腹側部材72の各接合部5a,5bから胴周り方向の中央まで上端縁7側へ上昇して延在する。第1弾性部材78は、腹側部材72の股部材4より上まで上昇しており、その一部が、上端縁7側に頂点を有する先細り形状であるホームベース形状の非弾性領域P71によって分断されているだけである。分断されていない第1弾性部材78の張力は、第1弾性部材78が左接合部5aの下部から右接合部5bの下部まで直線状に延びるように働くので、使い捨ておむつ70は、腹側部材72の上端縁7の中央部7aを引き下げる力が、使い捨ておむつ1よりも強い。そのため、使い捨ておむつ70は、腹側部材72の上端縁7の中央部7aが、背側部材3の上端縁8より一層引き下げられることが可能である。   The first elastic member 78 in the disposable diaper 70 does not extend to the left and right leg openings of the abdominal member 72, but is on the upper edge 7 side from each joint 5a, 5b of the abdominal member 72 to the center in the waistline direction. Ascend to and extend. The first elastic member 78 is raised above the crotch member 4 of the abdominal member 72, and a part of the first elastic member 78 is divided by a non-elastic region P71 having a taper shape having a vertex on the upper edge 7 side. It has only been done. Since the tension | tensile_strength of the 1st elastic member 78 which is not divided | segmented works so that the 1st elastic member 78 may extend linearly from the lower part of the left junction part 5a to the lower part of the right junction part 5b, the disposable diaper 70 is a ventral member. The force to pull down the central portion 7 a of the upper end edge 7 of 72 is stronger than that of the disposable diaper 1. Therefore, in the disposable diaper 70, the central portion 7 a of the upper end edge 7 of the abdominal member 72 can be further lowered than the upper end edge 8 of the dorsal member 3.

使い捨ておむつ70は、腹側部材72の上端縁7側に頂点を有する先細り形状であるホームベース形状の非弾性領域P71、長方形状の非弾性領域P72,及び、背側部材3の上端縁8側に頂点を有する先細り形状であるホームベース形状の非弾性領域P73が、吸収体20の最大幅よりも広く、股部材4の左右端縁4a,4b近傍まで広がっている。非弾性領域P71及びP73によって、腹側部材72及び背側部材3の背側部材3の胴周り弾性部材12の張力を消失される部分の左右幅は、使い捨ておむつ1に比べて大きい。これより、使い捨ておむつ70は、腹側部材72及び背側部材3が、腰開口部6から下方の脚開口部9a,9bへ向かって一層広がる形状にできる。   The disposable diaper 70 is a taper-shaped home base-shaped non-elastic region P71 having a vertex on the upper end edge 7 side of the ventral member 72, a rectangular inelastic region P72, and the upper end edge 8 side of the dorsal member 3 A non-elastic region P73 having a home base shape, which is a tapered shape having an apex, is wider than the maximum width of the absorbent body 20 and extends to the vicinity of the left and right end edges 4a, 4b of the crotch member 4. The left and right widths of the portions where the tension of the waist elastic member 12 of the back side member 3 of the abdominal side member 72 and the back side member 3 is eliminated by the non-elastic regions P71 and P73 are larger than those of the disposable diaper 1. Accordingly, the disposable diaper 70 can be formed such that the abdominal member 72 and the dorsal member 3 further expand from the waist opening 6 toward the lower leg openings 9a, 9b.

使い捨ておむつ70は、腹側部材72の左右の脚開口部を形成する下端縁76には、腹側部材72の胴周り弾性部材12cが延在する。背側部材3の左右の脚開口部を形成する下端縁11には、第2脚周り弾性部材79が延在する。股部材4の左右側縁4a,4bのうち、股部材4の左右の脚開口部を形成する部分の長さは、使い捨て下着1の当該部分の長さよりも短い。それに応じて、使い捨ておむつ70の股部材4の股部弾性部材75も短い。腹側部材72、背側部材3、及び股部材4に囲まれて形成される左右の脚開口部は、使い捨ておむつ1のものに比べて小さくなる。使い捨ておむつ70は、脚を動かしにくいおそれはあるものの、密着性が高まり、腹側部材72の面積が大きいことも相まって、排泄物等の漏れ防止が向上する。   In the disposable diaper 70, the waist elastic member 12 c of the abdominal member 72 extends to lower end edges 76 that form the left and right leg openings of the abdominal member 72. An elastic member 79 around the second leg extends on the lower end edge 11 forming the left and right leg openings of the back side member 3. Of the left and right side edges 4 a and 4 b of the crotch member 4, the length of the portion forming the left and right leg openings of the crotch member 4 is shorter than the length of the portion of the disposable underwear 1. Accordingly, the crotch elastic member 75 of the crotch member 4 of the disposable diaper 70 is also short. The left and right leg openings formed by being surrounded by the abdominal member 72, the dorsal member 3, and the crotch member 4 are smaller than those of the disposable diaper 1. The disposable diaper 70 has a possibility that it is difficult to move the leg, but the adhesion is increased, and the large area of the abdominal member 72 is combined, and thus the prevention of leakage of excrement and the like is improved.

前述した各実施形態及び変形例は、適宜組み合わせて用いることもできるが、詳細な説明は省略する。また、本発明は、以上に説明した各実施形態や変形例に限られない。例えば、本発明に係る使い捨て下着は、股部材の内部に吸収体がなく、吸収体を備えた吸収パッドを装着して使用される、パッドホルダーであってもよい。   Each of the above-described embodiments and modifications can be combined as appropriate, but detailed description thereof will be omitted. Further, the present invention is not limited to the embodiments and modifications described above. For example, the disposable undergarment according to the present invention may be a pad holder that has no absorbent body inside the crotch member and is used with an absorbent pad provided with the absorbent body.

本発明は、股上が短く、へそ周りを圧迫せず、着用位置が安定する、パンツ型使い捨ておむつやパッドホルダーを製品化するために有用である。   INDUSTRIAL APPLICABILITY The present invention is useful for commercializing a pants-type disposable diaper or pad holder that has a short crotch, does not press around the navel, and has a stable wearing position.

1,30,60,70 使い捨て下着
2,62,72 腹側部材
2c 中央部
3,63 背側部材
3c 中央部
4 股部材
5a,5b 接合部
6 腰開口部
7 腹側部材の上端縁
7a 腹側部材の上端縁の中央部
8 背側部材の上端縁
9a,9b 左右の脚開口部
10,66,76 腹側部材の下端縁
11,67 背側部材の下端縁
12 胴周り弾性部材
13,68,78 第1弾性部材(第1脚周り弾性部材)
14,69,79 第2脚周り弾性部材
25b,75b 腹側接続弾性部材
P1,P2,P3,P31,P32,P33,P61,P62,P63,P71,P72,P73 非弾性領域
DESCRIPTION OF SYMBOLS 1,30,60,70 Disposable underwear 2,62,72 Abdominal side member 2c Center part 3,63 Back side member 3c Center part 4 Crotch member 5a, 5b Joint part 6 Waist opening part 7 Upper end edge of abdominal side member 7a Abdomen The center part of the upper end edge of the side member 8 The upper end edge of the back side member 9a, 9b The left and right leg openings 10, 66, 76 The lower end edge of the abdominal side member 11, 67 The lower end edge of the back side member 12 The waist elastic member 13, 68, 78 First elastic member (elastic member around the first leg)
14, 69, 79 Second leg elastic member 25b, 75b Ventral connecting elastic member P1, P2, P3, P31, P32, P33, P61, P62, P63, P71, P72, P73 Inelastic region

Claims (7)

胴周り方向の両端部に沿った両接合部で互いに接合される腹側部材及び背側部材と、
前記腹側部材及び前記背側部材の両中央部に架け渡されて接合される股部材と、
前記腹側部材及び前記背側部材の両上端縁で囲まれて形成される腰開口部と、
前記腹側部材と前記背側部材と前記股部材とで囲まれて形成される左右の脚開口部と
前記腹側部材及び前記背側部材の各胴周り方向に延在する胴周り弾性部材と、
前記腹側部材の前記各接合部の下部から胴周り方向の中央まで前記上端縁側へ上昇して延在する第1弾性部材とを備え、
前記腰開口部から下方の左右の脚開口部へ向かって広がる形状であり、
前記腹側部材の上端縁の中央部が前記背側部材の上端縁より下がっていることを特徴とする使い捨て下着。
A ventral member and a back member that are joined together at both joints along both ends in the waistline direction;
A crotch member that is bridged and joined to both central portions of the ventral member and the dorsal member;
A waist opening formed surrounded by both upper edges of the ventral member and the dorsal member;
Left and right leg openings formed by being surrounded by the ventral member, the dorsal member and the crotch member ;
A waistline elastic member extending in a direction around each waist of the ventral member and the backside member;
A first elastic member extending upward from the lower portion of each joint of the ventral member to the center in the waist direction and extending to the upper edge side ,
It is a shape that widens from the waist opening toward the lower left and right leg openings,
A disposable underwear, wherein a central portion of an upper end edge of the ventral member is lowered from an upper end edge of the back member.
前記腹側部材の胴周り方向に延在する胴周り弾性部材が、前記背側部材の胴周り方向に延在する胴周り弾性部材よりも高い張力を有することを特徴とする請求項1に記載の使い捨て下着。The waist elastic member extending in the waist direction of the abdominal member has higher tension than the waist elastic member extending in the waist direction of the back member. Disposable underwear. 領域内の弾性部材の張力を消失させる非弾性領域が、前記腹側部材の胴周り方向の中央に、前記上端縁側に頂点を有する先細り形状に形成されることを特徴とする請求項1に記載の使い捨て下着。2. The non-elastic region in which the tension of the elastic member in the region disappears is formed in a tapered shape having a vertex on the upper edge side in the center of the waist side direction of the ventral member. Disposable underwear. 領域内の弾性部材の張力を消失させる非弾性領域が、前記背側部材の胴周り方向の中央に、前記上端縁側に頂点を有する先細り形状に形成されることを特徴とする請求項3に記載の使い捨て下着。The non-elastic region in which the tension of the elastic member in the region disappears is formed in a tapered shape having a vertex on the upper end edge side in the center of the waist side direction of the back side member. Disposable underwear. 前記股部材は、少なくとも1対の腹側接続弾性部材を備え、前記腹側接続弾性部材の前記股部材に接合される部分の腹側端部が、前記股部材の前記腹側部材に重ねられて接合される領域と重なり、前記腹側接続弾性部材の前記股部材に接合される部分の背側端部が、前記股部材の前記背側部材に重ねられて接合される領域と重ならないことを特徴とする請求項1に記載の使い捨て下着。The crotch member includes at least a pair of ventral connection elastic members, and a ventral end portion of a portion joined to the crotch member of the ventral connection elastic member is overlapped with the ventral member of the crotch member. And the back end portion of the portion to be joined to the crotch member of the ventral connection elastic member does not overlap with the region to be joined to the back side member of the crotch member. The disposable underwear of Claim 1 characterized by these. 前記腹側部材の下端縁は、胴周り方向に略平行な両端ラインと、前記両端ラインから前記中央部へ向かうに従って前記上端縁側へ上昇する一対の傾斜ラインと、前記傾斜ライン間をつなぐ中央ラインとを含み、The lower end edge of the abdominal side member includes both end lines that are substantially parallel to the waistline direction, a pair of inclined lines that rise toward the upper end edge side from the both end lines toward the central portion, and a central line that connects the inclined lines. Including
前記背側部材の下端縁は、胴周り方向に略平行な両端ラインと、前記両端ラインから前記中央部へ向かうに従って前記上端縁と反対側へ下降する一対の傾斜ラインと、前記傾斜ライン間をつなぐ中央ラインとを含むことを特徴とする請求項1に記載の使い捨て下着。The lower end edge of the dorsal member is formed between a pair of inclined lines that are substantially parallel to the waistline direction, a pair of inclined lines that descend to the opposite side of the upper end edge from the both end lines toward the central portion, and the inclined lines. The disposable underwear according to claim 1, further comprising a connecting central line.
前記腹側部材と前記背側部材とが分離され且つ伸展された状態で、前記腹側部材の下端縁が前記背側部材の下端縁と突き合わされる際に一致することを特徴とする請求項1に記載の使い捨て下着。The lower end edge of the abdominal member coincides with the lower end edge of the dorsal member in a state where the abdominal member and the dorsal member are separated and extended. Disposable underwear according to 1.
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