One-piece garment

Abstract

To provide a one-piece garment that can support an absorbent pad and suppress leakage of excrement. [Solution] A one-piece garment (1) comprising an upper body part (10) worn on the upper body and a lower body part (20) that is integrated with the upper body part (10) at the rear and worn on the lower body, wherein at least one of the upper body part (10) and the lower body part (20) is expandable in the front-to-back direction or left-to-right direction and has engaging parts (13, 21) for detachably engaging the expandable part, and a supporter part (30) is provided on the skin side in the thickness direction of the lower body part (20) which has a support surface for supporting an absorbent pad or diaper, and the upper ends of the front and rear supporter parts (30) are fixed to the lower body part (20) by upper end fixing parts.

Description

Technical Field

[0001] The present invention relates to an integrated top-bottom clothing.

Background Art

[0002] Patent Document 1 discloses a baby's clothing composed of a back body part, one front body part connected to one side of the back body part, the other front body part connected to the other side of the back body part, and both sleeve parts, and a crotch part connected to the back body part of the upper body part. In a state where this clothing is unfolded, the baby's body is laid on the back body part in a supine state, after putting on the upper body part, the crotch part is covered from above the baby's diaper, and the clothing is worn by engaging the hook-and-loop fastener at the tip of the flap with the hook-and-loop fastener on the outer surface of the crotch part. According to such clothing, even if the baby grows, it is easy to adjust to the body size, and the usage period can be extended.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Since the clothing of Patent Document 1 is worn from above the diaper, the crotch part functions as over-pants (diaper cover). However, since the clothing of Patent Document 1 is an integrated top-bottom clothing in which the crotch part is connected to the upper body part, the movement of the wearer's upper body is easily transmitted from the upper body part to the crotch part. Also, since the diaper is worn directly against the crotch part, the movement of the wearer's upper body easily affects the diaper. Therefore, there is a risk that the diaper will be displaced and excrement will leak. Also, simply setting an absorption pad in the crotch part of the clothing of Patent Document 1 makes the absorption pad easily displaced under the influence of the movement of the wearer's upper body, and excrement is likely to leak.

[0005] The present invention has been made in view of the above-mentioned problems, and its object is to provide a one-piece garment that can support an absorbent pad or diaper and can suppress leakage of excrement. [Means for solving the problem]

[0006] The main invention for achieving the above objective is: It has mutually orthogonal vertical, horizontal, and front-to-back directions, The upper body part is worn on the upper body, It is integrated with the upper main body at the rear, and the lower main body is worn on the lower body, A one-piece garment having the following features: At least one of the upper body portion and the lower body portion is expandable in the front-rear direction or the left-right direction, and has an engaging portion for detachably engaging the expandable portion. On the skin-facing side in the thickness direction of the lower main body, a support portion is provided which has a support surface for supporting an absorbent pad or diaper. The upper ends of the front and rear support portions are each fixed to the lower main body portion by upper end fixing portions, making this a one-piece garment. Other features of the present invention will be made clearer by description in this specification and the accompanying drawings. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a one-piece garment that can support an absorbent pad or diaper and can suppress leakage of excrement. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view showing Romper 1 while being worn. [Figure 2] This is a schematic plan view of romper 1, which is unfolded and stretched in the vertical direction, as seen from the skin side. [Figure 3]This is a schematic plan view of romper 1 in its vertically unfolded and stretched state, as seen from the non-skin side. [Figure 4] This is an explanatory diagram on how to wear Romper 1. [Figure 5] This is an explanatory diagram on how to wear Romper 1. [Figure 6] This is a schematic cross-sectional view of romper 1 being worn. [Figure 7] This is an explanatory diagram of the expansion and contraction regions S1 and S2. [Figure 8] This is an explanatory diagram of the lower main body portion 20 of a modified example. [Figure 9] This is an explanatory diagram of the position of the upper and lower engaging parts 40. [Figure 10] This is an enlarged view of the area around the upper engaging portion 13 and the lower engaging portion 21. [Figure 11] Figures 11A and 11B are explanatory diagrams of a modified example of a one-piece garment 100. [Figure 12] Figures 12A and 12B are explanatory diagrams of a modified example of a one-piece garment 200. [Modes for carrying out the invention]

[0009] The following matters become clear from this specification and the accompanying drawings: (Aspect 1) One-piece garment comprising an upper body portion worn on the upper body, having mutually orthogonal vertical, left-right, and front-back directions, and a lower body portion worn on the lower body, which is integrated with the upper body portion at the rear, wherein at least one of the upper body portion and the lower body portion is expandable in the front-back or left-right direction and has an engaging portion for detachably engaging the expandable portion, and a support portion is provided on the skin side in the thickness direction of the lower body portion, which has a support surface for supporting an absorbent pad or diaper, and the upper ends of the front and rear support portions are each fixed to the lower body portion by upper end fixing portions.

[0010] According to Aspect 1, since the absorption pad or diaper is set on the supporter part, the absorption pad or diaper is less likely to be affected by the movement from the upper main body part. Therefore, it is easy to maintain the state where the absorption pad or diaper adheres closely to the wearer, and leakage of excrement can be suppressed. Also, since at least one of the upper main body part and the lower main body part is deployable, the ease of wearing clothes and the absorption pad or diaper used in combination is improved.

[0011] (Aspect 2) The one-piece upper and lower clothing according to Aspect 1, The lower main body part on the rear side has an elastic region that expands and contracts in the left-right direction at the boundary with the upper main body part.

[0012] According to Aspect 2, the movement of the upper main body part is buffered in the elastic region. Also, the waist part of the lower main body part fits around the wearer's torso due to the elastic region. Therefore, it is difficult for the movement of the upper main body part to be transmitted to the lower main body part and the supporter part, and it is easy to maintain the state where the absorption pad or diaper adheres closely to the wearer, and leakage of excrement can be suppressed.

[0013] (Aspect 3) The one-piece upper and lower clothing according to Aspect 2, In the deployed state and extended state in the vertical direction of the lower main body part and the supporter part, the maximum width in the left-right direction of the elastic region is not less than the minimum width in the left-right direction of the supporter part.

[0014] According to Aspect 3, an elastic region exists over the range of the width of the absorbent pad or diaper supported by the minimum width of the supporter part, and the movement of the upper main body part is buffered. Therefore, it is easy to maintain the state where the absorption pad or diaper adheres closely to the wearer, and leakage of excrement can be suppressed.

[0015] (Aspect 4) The one-piece upper and lower clothing according to Aspect 2 or 3, In the deployed state and extended state in the vertical direction of the lower main body part and the supporter part, the maximum width in the left-right direction of the elastic region is not less than the maximum width in the left-right direction of the upper end fixing part on the rear side.

[0016] According to embodiment 4, an expandable area exists over the range in which the support portion is fixed to the lower main body, and the movement of the upper main body is cushioned. Therefore, the absorbent pad or diaper is more likely to stay in close contact with the wearer, and leakage of excrement can be suppressed.

[0017] (Appearance 5) A one-piece garment as described in Appearance 2 or 3, The support surface of the supporter portion is provided with a pad or diaper engagement portion for removably engaging with the absorbent pad or diaper, and in the vertically unfolded and extended state of the lower main body portion and the supporter portion, the maximum width in the left-right direction of the expandable / contractable region is greater than or equal to the maximum width in the left-right direction of the pad or diaper engagement portion.

[0018] According to embodiment 5, an elastic area exists over the range in which the absorbent pad or diaper is fixed to the support portion, and the movement of the upper main body portion is buffered. Therefore, the absorbent pad or diaper is more likely to stay in close contact with the wearer, and leakage of excrement can be suppressed.

[0019] (Appearance 6) A one-piece garment described in any of Appearances 1 to 5, On both sides in the left-right direction, the lower main body and the supporter are expandable in the front-rear direction, and the front lower main body has a front expandable region at its upper end that expands and contracts in the left-right direction.

[0020] According to embodiment 6, when worn, the rear stretchable area and the front stretchable area are connected, so the movement of the upper main body is also buffered in the front stretchable area. As a result, the movement of the upper main body is less likely to be transmitted to the lower main body and supporter. Therefore, the absorbent pad or diaper is more likely to stay in close contact with the wearer, and leakage of excrement can be suppressed.

[0021] (Aspect 7) The one-piece garment described in Aspect 6, The support surface of the supporter portion is provided with a pad or diaper engagement portion for removably engaging with the absorbent pad or diaper, and in the vertically unfolded and extended state of the lower main body portion and the supporter portion, the maximum width in the left-right direction of the front expandable / contractible region is greater than or equal to the maximum width in the left-right direction of the pad or diaper engagement portion.

[0022] According to embodiment 7, there is an elastic area on the front side that extends over the area where the absorbent pad or diaper is fixed to the support part, and the movement of the upper main body is cushioned. Therefore, it is easier to maintain a close fit between the absorbent pad or diaper and the wearer, and leakage of excrement can be suppressed.

[0023] (Appearance 8) A one-piece garment described in any of Appearances 1 to 7, The front lower body portion has upper and lower engaging portions on the non-skin side that are detachably engaged with the front upper body portion, and the front lower body portion has a front expandable region that expands and contracts in the left-right direction at its upper end, and the upper and lower engaging portions are provided below the upper end of the front expandable region.

[0024] According to embodiment 8, the front upper main body portion can be prevented from curling up. Furthermore, even when the front upper and lower main body portions are connected by the upper and lower engaging portions, the absorbent pad or diaper is supported by the support portion, making it less susceptible to the movement of the upper main body portion and thus suppressing leakage of excrement.

[0025] (Aspect 9) The one-piece garment described in Aspect 8, In the vertical direction, when the range from the lower end of the front expandable / contractible region to a length twice the maximum length of the front expandable / contractible region in the vertical direction, which is below the lower end, is defined as the first range, the upper and lower engaging portion is provided in the first range.

[0026] According to embodiment 9, since the upper and lower engaging portion is located below the lower main body portion, it is possible to prevent the upper main body portion on the front from rolling up. In addition, because the upper and lower engaging portion is located below the stretchable area on the front, the movement of the upper main body portion on the front is less likely to extend to the stretchable area on the front, and the fit of the stretchable area on the front to the wearer's waist is ensured.

[0027] (Aspect 10) A one-piece garment described in Aspect 8 or 9, The front portion of the support surface of the supporter is provided with a pad or diaper engagement portion that removably engages with the absorbent pad or diaper, and the upper and lower engagement portions are positioned below the pad or diaper engagement portion.

[0028] According to embodiment 10, when viewing the lower main body in the thickness direction, upper and lower engaging parts are provided in the portion where the absorbent pad or diaper is not fixed to the support part. As a result, the movement of the front upper main body is less likely to be transmitted to the absorbent pad or diaper. Therefore, it is easier to maintain a close fit between the absorbent pad or diaper and the wearer, and leakage of excrement can be suppressed.

[0029] (Aspect 11) A one-piece garment described in any of aspects 1 to 10, On both sides in the left-right direction, the upper main body, the lower main body, and the supporter are expandable in the front-rear direction, and the engaging portion has an upper engaging portion that engages with the side of the upper main body on one side in the left-right direction, and a lower engaging portion that engages with the side of the lower main body on one side in the left-right direction, and the upper engaging portion provided on the rear upper main body has a portion that overlaps with the lower engaging portion provided on the rear lower main body in the left-right direction.

[0030] According to embodiment 11, when the lower engaging portion is engaged, the upper engaging portion also bends more easily to conform to the wearer's waist in conjunction with its movement. Therefore, the upper engaging portion becomes easier to engage.

[0031] ===Implementation Method=== As an example of the "one-piece garment" according to the present invention, an embodiment will be described using a romper for infants as an example.

[0032] <<Basic composition of Romper 1>> Figure 1 is a perspective view showing Romper 1 while being worn. Figure 2 is a schematic plan view of Romper 1 in its vertically unfolded and stretched state, seen from the skin side. Figure 3 is a schematic plan view of Romper 1 in its vertically unfolded and stretched state, seen from the non-skin side.

[0033] As shown in Figure 1, when romper 1 is being worn, it has mutually orthogonal vertical, left-right, and front-back directions. The upper side of the vertical direction corresponds to the wearer's upper body, and the lower side corresponds to the wearer's lower body. The front side of the front-back direction corresponds to the wearer's abdominal side, and the back side corresponds to the wearer's back. As shown in Figure 2, when romper 1 is unfolded, it has mutually orthogonal longitudinal, left-right, and thickness directions. The longitudinal direction corresponds to the vertical direction. The thickness direction corresponds to the front-back direction, and in the thickness direction, the inner side closer to the wearer's skin is called the skin side, and the outer side on the opposite side is called the non-skin side.

[0034] Rompers 1 comprises an upper body portion 10 worn on the upper body, a lower body portion 20 worn on the lower body which is integrated with the upper body portion 10 at the rear in the front-to-back direction, and a support portion 30 which has a support surface 30s for supporting an absorbent pad. As shown in Figure 2, the support portion 30 is provided on the skin side in the thickness direction of the lower body portion 20.

[0035] Romper 1 is worn with an absorbent pad capable of absorbing and retaining urine and feces supported by a supporter portion 30. The composition of the absorbent pad used in conjunction with Romper 1 is not particularly limited. For example, it may be a disposable absorbent pad comprising a liquid-permeable surface sheet (nonwoven fabric, etc.), a liquid-impermeable back sheet (resin film, etc.), and an absorbent core (pulp fiber, etc.) provided between them that can absorb excretory fluids, or it may be a reusable absorbent pad that can be washed.

[0036] The upper body portion 10 has an upper front panel 11 and an upper back panel 12, and when worn, it has the shape of a sleeveless running shirt, and has a neck opening NH and a pair of arm openings AH. The upper body portion 10 is expandable in the front-to-back direction at both sides in the left-to-right direction. That is, each side of the upper front panel 11 and the upper back panel 12 (all of the left-to-right sides below the arm openings AH) is separable in the front-to-back direction, and as shown in Figure 2, the upper front panel 11 and the upper back panel 12 expand side by side in the vertical direction.

[0037] Furthermore, the upper main body portion 10 has an upper engaging portion 13 that detachably engages with the unfolding portion. The upper engaging portion 13 is located on both sides in the left-right direction, so that the upper front body portion 11 and the upper back body portion 12 overlap, and detachably engages with the upper front body portion 11 and the upper back body portion 12. In this embodiment, the upper engaging portion 13 is a snap button. One of the snap button set (male button and female button) is provided on the side of the upper front body portion 11, and the other is provided on the side of the upper back body portion 12. At each side, two upper engaging portions 13 are arranged with a gap in the vertical direction, but the number of upper engaging portions 13 is not particularly limited. Furthermore, in Figure 1, the skin-facing side of the upper front panel 11 and the non-skin-facing side of the upper back panel 12 are in contact, but this is not limited to this. For example, the non-skin-facing side of the upper front panel 11 and the skin-facing side of the upper back panel 12 may be in contact, or the skin-facing sides of the upper front panel 11 and the upper back panel 12 may be in contact with each other, or the non-skin-facing sides may be in contact with each other and overlap.

[0038] As shown in Figure 2, the lower body portion 20 has a waist portion 20W and a lower body portion 20L located below the waist portion 20W, and when worn, it is brief-shaped and has a pair of leg openings LH. On both sides of the lower body portion 20 in the left-right direction, the entire side portion can be unfolded in the front-back direction, and the front and rear side portions unfold side by side in the up-down direction. When unfolded, the lower body portion 20 has a shape (so-called hourglass shape) in which the central part in the longitudinal direction is narrowed in the width direction.

[0039] Furthermore, the lower main body portion 20 has a lower engaging portion 21 that detachably engages with the unfolding portion. The lower engaging portion 21 is positioned on both sides in the left-right direction so that the front waist portion 20W and the rear waist portion 20W overlap, and detachably engages with the front waist portion 20W and the rear waist portion 20W. In this embodiment, the lower engaging portion 21 is a combination of a hook-and-loop fastener's male member (a member with a hook) and a hook-and-loop fastener's female member (a member with a loop that engages with the hook). One of the hook-and-loop fastener's male and female members is provided on the front waist portion 20W, and the other is provided on the rear waist portion 20W. Specifically, one rectangular lower engaging portion 21 is provided on each side of the non-skin side of the front waist portion 20W in the left-right direction. Furthermore, one rectangular lower engaging portion 21 is provided on each of the left and right sides of the skin-facing side of the rear waist portion 20W. However, the shape, number, and arrangement of the lower engaging portions 21 are not particularly limited. In addition, lower engaging portions 21 may be provided on the skin-facing side of the front waist portion 20W and the non-skin-facing side of the rear waist portion 20W.

[0040] The upper engaging portion 13 may be an engaging portion other than a snap button, and the lower engaging portion 21 may be an engaging portion other than a hook-and-loop fastener. Examples of engaging portions other than snap buttons and hook-and-loop fasteners include magnetic buttons, buttons and buttonholes, hooks and eyelets, buttons and button loops, strings, etc., and are not particularly limited as long as they are used in clothing.

[0041] Even when worn, the left and right sides of the front portion of the supporter 30 are not connected to the left and right sides of the rear portion. Therefore, the two-fold portion of the supporter 30 can be opened vertically to unfold it into a flat surface. In the unfolded state, the supporter 30 has a shape similar to the lower main body portion 20, with the longitudinal center portion narrowed inward in the width direction. However, the above is not limited to the above; the left and right sides of the front portion of the supporter 30 and the left and right sides of the rear portion may be configured to be removable and re-engaged.

[0042] The left and right sides of the support portion 30 may be provided with stretchable areas 32 made of fabric that stretches vertically, or with elastic bands 33 that stretch vertically. This allows the left and right sides 32 and 33 of the support portion 30 to fit snugly around the wearer's legs, making it easier for the support portion 30 to follow the wearer's leg movements. As a result, displacement of the absorbent pad can be suppressed, and leakage of excrement can be suppressed.

[0043] Rompers 1 (upper body part 10, lower body member 20, and supporter part 30) is made of cloth and is formed from reusable cloth (sheet member). Examples of cloth that make up Rompers 1 include "woven cloth" and "knitted cloth". "Woven cloth" is a cloth constructed in a flat surface by intersecting weft threads at right angles to a large number of warp threads arranged in parallel, and an example of cloth called "woven fabric" is an example. On the other hand, "knitted cloth" is a cloth constructed in a flat surface by making loops from yarn and connecting other loops to these loops, and an example of cloth called "knit" is an example. The fibers that make up the cloth are not particularly limited, and examples include natural fibers such as cotton and silk, synthetic fibers such as polyester, polyurethane, nylon and acrylic, semi-synthetic fibers such as acetate and regenerated fibers such as rayon, and these may be used individually or in combination. However, Rompers 1 is not limited to being made of cloth and may be formed from materials other than cloth.

[0044] <<How to wear Romper 1>> Figures 4 and 5 are explanatory diagrams showing how to wear Romper 1. For the sake of simplicity, only Romper 1 is shown in the diagrams. First, the user (guardian, etc.) unfolds the upper body part 10 and the lower body part 20 in the vertical direction (front-to-back direction), as shown in Figure 2, and sets the absorbent pad on the support surface 30s of the support part 30. Then, the user lays the wearer (infant) on their back on the unfolded Romper 1 so that the wearer's back is positioned on the upper back panel 12. After that, as shown in Figure 4, the user folds the lower body part 20 in half vertically and places it against the wearer's abdomen and engages the lower engagement part 21. This completes the wearing of the lower body part 20.

[0045] Thus, the lower main body portion 20 and the support portion 30 can be unfolded in the front-to-back direction (up-down direction) on both sides in the left-to-right direction, resulting in a shape similar to a tape-type disposable diaper. Therefore, the user can put it on without having to pass the wearer's legs through the waist opening of the lower main body portion to the leg opening.

[0046] Furthermore, as shown in Figure 3, the length W1 in the left-right direction of the upper end of the rear lower body portion 20 is longer than the length W2 in the left-right direction of the upper end of the front lower body portion 20 (W1 > W2). Therefore, it becomes easier for the user to engage the lower engagement portion 21 on the ventral side of the wearer when lying on their back. Also, the left-right sides of both parts of the rear lower body portion 20 are less likely to get caught under the back. Thus, the ease of wearing the lower body portion 20 and the absorbent pad is improved.

[0047] Next, the user puts their head through the neck opening NH provided in the upper body part 10, folds the upper front panel 11 downwards as shown in Figure 5, and engages the upper engagement part 13 (fastens the snap button). As a result, as shown in Figure 1, both sides of the upper front panel 11 in the left-right direction and both sides of the upper back panel 12 in the left-right direction are connected, and the upper body part 10 is put on. The upper body part 10 in this embodiment is shaped like a running shirt and can be unfolded in the vertical direction. Therefore, the user can put it on without putting the wearer's arms through the arm openings, improving the ease of putting on the upper body part 10.

[0048] <<About Supporter Division 30>> Figure 6 is a schematic cross-sectional view of romper 1 while being worn. Figure 7 is an explanatory diagram of the stretchable regions S1 and S2. Figure 8 is an explanatory diagram of the lower main body portion 20 of a modified example. Figures 7 and 8 are schematic plan views of the lower main body portion 20 in an extended and expanded state. Figure 9 is an explanatory diagram of the position of the upper and lower engaging portion 40 and is a schematic plan view of the front portion of the lower main body portion 20 (natural state) in an extended and expanded state.

[0049] As mentioned above, in romper 1, a supporter portion 30 is provided on the skin-facing side in the thickness direction of the lower main body portion 20, which has a support surface 30s for supporting the absorbent pad 50. In romper 1, the upper main body portion 10 and the lower main body portion 20 are connected at least at the rear. Therefore, the movement of the wearer's upper body may be transmitted from the upper main body portion 10 to the lower main body portion 20. Even in this case, in romper 1 of this embodiment, the absorbent pad 50 is set in the supporter portion 30, so the absorbent pad 50 is less affected by movement from the upper main body portion 10 compared to, for example, when the absorbent pad is directly set in the crotch area of ​​the lower main body portion. Therefore, displacement of the absorbent pad 50, unintended deformation, and detachment from the supporter portion 30 can be suppressed. Thus, the absorbent pad 50 is more likely to stay in close contact with the wearer, and leakage of excrement can be suppressed.

[0050] Furthermore, as shown in Figure 6, the upper ends of the front and rear supporter portions 30 are attached to and fixed to the lower main body portion 20 by upper end fixing portions F30, respectively. In this embodiment, the supporter portion 30 is not fixed to the lower main body portion 20 except for the upper end fixing portions F30. However, a part of the supporter portion 30 other than the upper end fixing portions F30 may be fixed to the lower main body portion 20. By reducing the fixing portion between the lower main body portion 20 and the supporter portion 30, the supporter portion 30 becomes even less susceptible to the movement of the lower main body portion 20. Therefore, the airtight seal of the absorbent pad 50 is more easily maintained, and leakage of excrement can be suppressed.

[0051] In particular, between the front and rear upper end fixing portions F30, if the longitudinal length of the support portion 30 is shorter than the length of the lower main body portion 20, the support portion 30 is positioned above the lower main body portion 20, as shown in Figure 6. This improves the adhesion of the absorbent pad 50 to the wearer.

[0052] Furthermore, with the romper 1 of this embodiment, the process of putting on clothing is simplified and the absorption pad 50 can be easily replaced, compared to using a typical cloth diaper cover (i.e., putting on a cloth diaper cover with an absorbent pad 50 already attached and then putting on the romper). In addition, with the romper 1 of this embodiment, stuffiness can be suppressed because a cloth diaper cover is not worn, making it comfortable to wear even in hot weather.

[0053] Furthermore, using the absorbent pad 50 reduces waste compared to using disposable diapers, thereby reducing the environmental burden. Using reusable absorbent pads in conjunction with the diaper further reduces waste. On the other hand, using disposable absorbent pads reduces the number of washes, lessening the burden on the user. In addition, in the romper 1 of this embodiment, a diaper cover is not used, and the romper 1 directly supports the absorbent pad 50, further reducing the burden on the user.

[0054] Furthermore, since the upper body section 10 and the lower body section 20 can be unfolded in the front-to-back direction (up-down direction), the ease of putting on the romper 1 and absorbent pad is improved. In particular, the upper body section 10 and the lower body section 20 are integrated at the back, and the lower body section 20, which unfolds in the up-down direction, takes on a shape similar to a tape-type disposable diaper. Therefore, the romper 1 can be put on by laying the wearer on top of it when it is unfolded.

[0055] Furthermore, as shown in Figure 2, the lower main body portion 20 has a waist portion 20W that stretches in the left-right direction, at least a part of which, and a lower main body portion 20L located below the waist portion 20W. The stretchable waist portion 20W allows the lower main body portion 20 to fit according to the wearer's waist circumference, suppressing displacement of the lower main body portion 20 and preventing tightness around the wearer's waist. In this embodiment, the waist portion 20W is made of a stretchable fabric to provide elasticity. However, it is not limited to this, and elasticity may also be provided to the waist portion 20W by arranging an elastic member such as flat rubber.

[0056] As shown in Figure 7, the rear lower main body portion 20 has an expandable / contractible region S1 that expands and contracts in the left-right direction between the lower engaging portions 21 (hook-and-loop fasteners) provided on both sides in the left-right direction. Even if the fabric that overlaps the lower engaging portion 21 in the thickness direction is the same stretchable fabric as the fabric of the expandable / contractible region S1, the rigidity of the lower engaging portion 21 reduces its elasticity, so the elasticity occurs on the inside of the lower engaging portion 21.

[0057] As described above, it is preferable that the rear lower body portion 20 has an elasticity region S1 at the boundary with the upper body portion 10. This reduces the interlocking between the rear lower body portion 20 and the upper body portion 10, even though the rear lower body portion 20 is connected to the upper body portion 10. For example, the elasticity region S1 may be made of a different elastic fabric than the upper body portion 10, or it may have an elastic member. Therefore, compared to the case where the upper body portion 10 and the lower body portion 20 are made of the same continuous fabric, the movement of the upper body portion 10 is buffered by the elasticity region S1 and is less likely to be transmitted to the lower body portion 20. Thus, the movement of the upper body portion 10 is also less likely to be transmitted to the support portion 30. In addition, the elasticity region S1 allows the waist portion 20W of the lower body portion 20 to fit around the wearer's waist. From this point of view as well, the movement of the upper body portion 10 is less likely to be transmitted to the lower body portion 20 and the support portion 30. Therefore, displacement, unintended deformation, and detachment of the absorbent pad 50 from the supporter part 30 can be suppressed. As a result, the absorbent pad 50 is more likely to stay in close contact with the wearer, and leakage of excrement can be suppressed.

[0058] Furthermore, the elongation rate in the lateral direction of the stretchable region S1 in the waist portion 20W (elongation rate when pulled with a predetermined force) is preferably 120% or more, more preferably 125% or more. The elongation rate can be measured by a well-known method. Specifically, a sample piece is cut from the target area. The sample piece is rectangular in shape, and the "length in the elongation direction (in this case, the lateral direction)" is preferably "100 mm + the gripping width of the chuck (approximately 10 mm each at the top and bottom)", and the "width perpendicular to the elongation direction" is preferably "25 mm", however, the size can be appropriately changed depending on the size of the target area. Then, using a tensile testing machine (for example, Instron Model 5965 or equivalent), the distance between the chucks is widened at a tensile speed of 100 mm / min, and the elongation rate is determined when the sample piece is pulled in the elongation direction with a force of 1 N / 25 mm, that is, with a force of 1 N on a sample width of 25 mm. The initial distance between the chucks before the test (e.g., 100 mm) corresponds to the length before tension (G0), and the distance between the chucks when stretched with a predetermined force (1 N / 25 mm) corresponds to the length after tension (G1). Preferably, the elongation rate (=G1 / G0) is determined for multiple (e.g., n=5) sample pieces, and the average value is calculated. However, the above is not limited to the case where the elongation rate of the stretched region S1 is less than 120%.

[0059] Furthermore, the following conditions may be met when the lower body portion 20 and the support portion 30 are unfolded and extended in the vertical direction. Here, the "unfolded state" of the lower body portion 20 and the support portion 30 in the vertical direction means that the left and right sides of the lower body portion 20 and the support portion 30 are separated and unfolded planar in the vertical direction. If the sides of the lower body portion or the support portion are detachably engaged by an engaging part, the engaging part is removed and the portion is separated. If the sides are sewn together, the left and right side ends of the lower body portion or the support portion are cut with scissors or the like to separate them. However, if the lower body portion is sewn in a three-dimensional shape (for example, the trouser-shaped lower body portion shown in Figures 11A and 11B described later), and there are parts of the lower body portion that cannot be unfolded planarly (for example, the leg area), or if the vertical (longitudinal) lengths of the support portion and the lower body portion are different, the lower body portion may be partially loose. Furthermore, the stretched state refers to the state in which parts made of stretchable fabric are laid flat without any load or wrinkles, and in the case of parts where elastic members are attached to the fabric, it refers to the state in which the fabric is stretched so that the wrinkles caused by the elastic member disappear, that is, the state in which the dimensions of the fabric are stretched to match or close to the dimensions of the fabric alone.

[0060] Furthermore, in the vertically unfolded and extended state of the lower main body portion 20 and the support portion 30 (Figure 7), it is preferable that the maximum width W3 in the left-right direction of the rear expansion / contraction region S1 is greater than or equal to the minimum width W4 in the left-right direction of the support portion 30 (W3 ≥ W4).

[0061] As a result, an expandable area S1 exists across the width range of the absorbent pad 50 supported by the minimum width W4 of the supporter portion 30, cushioning the movement of the upper main body portion 10. Therefore, the movement of the upper main body portion 10 is less likely to be transmitted to the supporter portion 30. Furthermore, the expandable area S1 and the supporter portion 30 (the part with the minimum width W4) overlap in the left-right direction, further reducing the transmission of movement of the upper main body portion 10 to the supporter portion 30. Therefore, the absorbent pad 50 is more likely to maintain a close fit to the wearer, suppressing leakage of excrement.

[0062] More preferably, in the vertically unfolded and extended state of the lower main body portion 20 and the support portion 30, the maximum width W3 in the left-right direction of the rear expansion / contraction region S1 should be greater than or equal to the maximum width W5 in the left-right direction of the rear upper end fixing portion F30 (W3≧W5).

[0063] As a result, an expandable / contractible area S1 exists over the range in which the supporter portion 30 is fixed to the lower main body portion 20, and the movement of the upper main body portion 10 is buffered. Therefore, the movement of the upper main body portion 10 is less likely to be transmitted to the supporter portion 30. Furthermore, because the expandable / contractible area S1 and the rear upper end fixing portion F30 overlap in the left-right direction, the movement of the upper main body portion 10 is buffered in the expandable / contractible area S1 before it moves to the upper end fixing portion F30, making it less likely to be transmitted to the supporter portion 30. Therefore, the absorbent pad 50 is more likely to maintain a close fit to the wearer, and leakage of excrement can be suppressed.

[0064] Furthermore, the support surface 30s of the supporter portion 30 is provided with a pad engagement portion 31 (corresponding to the engagement portion of a pad or diaper) that removably engages with the absorbent pad 50. An example of the pad engagement portion 31 is a hook-and-loop fastener male member that removably engages with the non-skin side (e.g., nonwoven fabric) of the absorbent pad 50. In this embodiment, one rectangular pad engagement portion 31 is provided at each end of the longitudinal direction of the supporter portion 30. However, the number, shape, and arrangement of the pad engagement portions 31 are not limited to those shown.

[0065] Furthermore, in the vertically unfolded and extended state of the lower main body portion 20 and the support portion 30, it is preferable that the maximum width W3 in the left-right direction of the rear expansion / contraction region S1 is greater than or equal to the maximum width W6 in the left-right direction of the pad engagement portion 31 (W3 ≥ W6).

[0066] As a result, an expandable / contractible area S1 exists over the range in which the absorbent pad 50 is fixed to the supporter portion 30, and the movement of the upper main body portion 10 is buffered. Therefore, the movement of the upper main body portion 10 is less likely to be transmitted to the supporter portion 30. Furthermore, because the expandable / contractible area S1 and the pad engagement portion 31 overlap in the left-right direction, the movement of the upper main body portion 10 is less likely to be transmitted to the portion of the absorbent pad 50 fixed to the supporter portion 30. Therefore, the absorbent pad 50 is more likely to maintain a close contact with the wearer, and leakage of excrement can be suppressed. Note that the supporter portion 30 does not necessarily have a pad engagement portion 31; for example, the absorbent pad 50 may be fixed to the supporter portion 30 by the adhesive portion on the non-skin side of the absorbent pad 50.

[0067] Furthermore, in the romper 1 of this embodiment, the lower main body portion 20 and the support portion 30 can be expanded in the front-to-back direction (up-to-down direction) on both sides in the left-to-right direction. In this case, the waist portion 20W of the expanded front lower main body portion 20 may be made of a stretchable fabric or have an elastic member provided, similar to the rear waist portion 20W, and may expand and contract in the left-to-right direction inside the front lower engagement portion 21. Thus, it is preferable that the front lower main body portion 20 also has a front expandable region S2 in the waist portion 20W that expands and contracts in the left-to-right direction.

[0068] When wearing Romper 1, the rear waist section 20W (stretch area S1) and the front waist section 20W (stretch area S2) are connected. As a result, the movement of the upper body section 10 (especially the movement of the part of the upper body section 10 that is integrated with the rear lower body section 20) is also buffered in the front stretch area S2. In other words, the movement of the upper body section 10 can be buffered over a wide area in the direction of the torso, reducing the impact on the lower body section 20 and the support section 30. Therefore, the absorbent pad 50 is more likely to stay in close contact with the wearer, and leakage of excrement can be suppressed.

[0069] Furthermore, in the vertically unfolded and extended state of the lower main body portion 20 and the support portion 30 (Figure 7), it is preferable that the maximum width W7 in the left-right direction of the front expansion / contraction region S2 is greater than or equal to the maximum width W6 in the left-right direction of the pad engagement portion 31 (W7≧W6).

[0070] As a result, a front stretchable area S2 exists over the range in which the absorbent pad 50 is fixed to the supporter part 30, and the movement of the upper main body part 10 is buffered. Therefore, the movement of the upper main body part 10 is less likely to be transmitted to the supporter part 30. Furthermore, because the front stretchable area S2 and the pad engagement part 31 overlap in the left-right direction, the movement of the upper main body part 10 is less likely to be transmitted to the part of the absorbent pad 50 fixed to the supporter part 30. Therefore, the absorbent pad 50 is more likely to maintain a close fit to the wearer, and leakage of excrement can be suppressed.

[0071] Furthermore, as shown in the modified example in Figure 8, the maximum width W7 in the left-right direction of the front expandable region S2 may be long, and this maximum width W7 may be greater than or equal to the minimum width W4 in the left-right direction of the supporter portion 30 (W7≧W4). As a result, the front expandable region S2 exists over the width range of the absorbent pad 50 supported by the minimum width W4 of the supporter portion 30, and the movement of the upper main body portion 10 is buffered. Therefore, the movement of the upper main body portion 10 is less likely to be transmitted to the supporter portion 30, and leakage of excrement can be suppressed.

[0072] Furthermore, as shown in Figure 6, the front lower body portion 20 has upper and lower engaging portions 40 on the non-skin side that detachably engage with the front upper body portion 10 (upper front panel 11). In this embodiment, the upper and lower engaging portions 40 are snap buttons. One of the snap button set (male button and female button) is provided on the non-skin side of the front lower body portion 20, and the other is provided on the skin side of the upper front panel 11. Snap buttons have a relatively strong engaging force, which helps to prevent infants from unfastening them, and they are also less likely to come undone even when infants crawl, making it easier to maintain the engaged state. However, the upper and lower engaging portions 40 are not limited to snap buttons; they may be other engaging members such as hook-and-loop fasteners, magnetic buttons, buttons, and button loops, and are not particularly limited.

[0073] Furthermore, as shown in Figure 9, it is preferable that the upper and lower engaging portion 40 (snap button) provided on the front lower main body portion 20 is located below the upper end euS2 of the front stretchable region S2. In other words, it is preferable that the upper and lower engaging portion 40 of the lower main body portion 20 be located in a position that overlaps with the front stretchable region S2, or below the front stretchable region S2. This prevents the upper main body portion 10 (upper front body 11) from rolling up and prevents the wearer's abdomen from being exposed. In addition, even if the upper and lower engaging portion 40 connects the upper main body portion 10 (upper front body 11) and the front portion of the lower main body portion 20, the absorbent pad 50 is supported by the support portion 30, so it is less affected by the movement of the upper main body portion 10 (upper front body 11). Therefore, it is easier to maintain a close fit between the absorbent pad 50 and the wearer, and leakage of excrement can be suppressed.

[0074] The positions of the upper and lower engaging portions 40 should be compared in the natural state (unloaded state) of the lower main body portion 20 and the support portion 30. If the lower main body portion 20 is expandable in the vertical direction, it is preferable to compare them in the expanded state as shown in Figure 9. If the longitudinal (vertical) lengths of the lower main body portion 20 and the support portion 30 are different, the front portions of the lower main body portion 20 and the support portion 30 may be cut out and compared.

[0075] Preferably, as shown in Figure 9, when the "first range R1" is defined as the range from the lower end elS2 of the front expandable / contractible region S2 to a length twice the maximum length L1 of the front expandable / contractible region S2 in the vertical direction (2 × L1) below the lower end elS2, it is preferable that the upper and lower engaging portion 40 is provided in the first range R1.

[0076] As described above, since the upper and lower engaging portion 40 is located below the lower main body portion 20, it prevents the upper front body 11 from rolling up and prevents the wearer's abdomen from being exposed. In addition, because the upper and lower engaging portion 40 is located below the stretchable area S2, the movement of the upper front body 11 does not easily extend to the front stretchable area S2, and the fit of the front stretchable area S2 to the wearer's waist is ensured.

[0077] Furthermore, the upper and lower engaging portion 40 is located away from the upper end fixing portion F30 of the support portion 30. In other words, when viewing the lower main body portion 20 in the thickness direction, the upper and lower engaging portion 40 is provided in the portion where the support portion 30 is not fixed to the lower main body portion 20. As a result, the movement of the upper front body 11 is less likely to be transmitted to the support portion 30. Therefore, the absorbent pad 50 is more likely to maintain a close contact with the wearer, and leakage of excrement can be suppressed.

[0078] Furthermore, as shown in Figure 9, if a pad engagement portion 31 is provided on the front side of the support surface 30s of the support portion 30 (the portion in front of the center in the longitudinal direction of the unfolded support portion 30), the following is preferable: The upper and lower engagement portions 40 are preferably positioned below the pad engagement portion 31.

[0079] As described above, when viewing the lower main body portion 20 in the thickness direction, the upper and lower engaging portions 40 are provided in the portion where the absorbent pad 50 is not fixed to the support portion 30. Therefore, the movement of the upper front body portion 11 is less likely to be transmitted to the absorbent pad 50. Thus, the absorbent pad 50 is more likely to maintain a close contact with the wearer, and leakage of excrement can be suppressed.

[0080] However, the position of the upper and lower engaging portion 40 is not limited to the above. However, it is preferable that the upper and lower engaging portion 40 be provided on the front side of the lower main body portion 20 (the part in front of the center in the longitudinal direction of the lower main body portion 20 when unfolded). This makes it easier to engage the upper and lower engaging portion 40 on the ventral side of an infant in a supine position.

[0081] Figure 10 is an enlarged view of the area around the upper engagement portion 13 and the lower engagement portion 21. In this embodiment, the romper 1 has an upper body portion 10, a lower body portion 20, and a support portion 30 that can be unfolded in the front-to-back direction on both sides in the left-to-right direction. An upper engagement portion 13 (snap button) and a lower engagement portion 21 (hook-and-loop fastener) are provided as engagement portions to detachably engage the unfolded portion. As shown in Figures 2 and 3, the upper engagement portion 13 is provided on one side and the other side in the left-to-right direction of the upper body portion 10, and the lower engagement portion 21 is provided on one side and the other side in the left-to-right direction of the waist portion 20. In this case, as shown in Figure 10, it is preferable that the upper engagement portion 13 on one side (or the other side) in the left-to-right direction provided on the rear upper body portion 10 (upper back body 12) has a portion Ro that overlaps in the left-to-right direction with the lower engagement portion 21 on one side (or the other side) in the left-to-right direction provided on the rear lower body portion 20. The comparison will be made in the stretched state of Romper 1.

[0082] As described above, when the lower engaging portion 21 is engaged, as shown in Figure 4, the upper engaging portion 13 also bends more easily along the wearer's waist in conjunction with its movement. Therefore, the upper engaging portion 13 becomes easier to engage. In the romper 1 of this embodiment, the length of the upper end of the rear of the lower main body portion 20 is longer than the length of the upper end of the front, so the lower engaging portion 21 engages on the wearer's abdominal side. At this time, the left and right sides of the upper back body 12, where the upper engaging portion 13 is provided, also fold towards the wearer's abdominal side. Therefore, the effort of pulling out the left and right sides of the upper back body 12 from under the wearer's back or folding them towards the abdominal side is reduced, improving the ease of wearing the romper 1.

[0083] Preferably, in the portion Ro where the upper engaging portion 13 and the lower engaging portion 21 overlap, the fabric forming the upper main body portion 10 (upper back body 12) and the fabric forming the lower rear main body portion 20 are continuous in the vertical direction. This ensures that when the lower engaging portion 21 is engaged, the upper engaging portion 13 moves in conjunction with the movement of the lower engaging portion 21, making it easier to fold along the wearer's waist. As a result, the upper engaging portion 13 becomes easier to engage.

[0084] ===Unique Text=== Figures 11A and 11B are explanatory diagrams of modified one-piece garments 100. Figures 12A and 12B are explanatory diagrams of modified one-piece garments 200. The aforementioned romper 1 has a brief-type lower body part 20 and can be used as underwear, loungewear, or outerwear when worn by an infant. However, it is not limited to this, and the lower body part may be in the shape of trousers (including culottes) or a skirt.

[0085] Figures 11A and 11B illustrate a one-piece garment 100 in which the lower body portion 120 is shaped like trousers. The trouser-shaped lower body portion 120 has a front body portion 121 and a back body portion 122, and the sides on both sides in the left-right direction can be extended in the front-back direction. Detailed drawings of the upper body portion 110 are omitted in Figures 11A and 11B. Engaging portions 123 (for example, hook-and-loop fasteners or snap buttons) are provided on both sides in the left-right direction of the front body portion 121 and the back body portion 122 of the lower body portion 120, and the front body portion 121 and the back body portion 122 are connected by engaging the engaging portions 123.

[0086] If the lower body portion 120 is shaped like long trousers on both sides in the left-right direction, it looks less like underwear, making it easier to use as loungewear or outerwear, and eliminating the need to wear additional clothing on the outside (non-skin side) of the lower body portion 120. Therefore, the wearing process is simplified. Also, stuffiness can be suppressed, making it comfortable to wear even in hot weather. The lower body portion 120 in Figure 11A is shorts, but it may also be long trousers. The support portion 130 in Figure 11A is not connected on both sides in the left-right direction, but it may be connected on both sides when worn. Also, the support portion may have a shape where the length of the connected sides when worn is short (briefs type), or a shape where the length of the connected sides when worn is long (boxer type, trunks type). Although not shown, if the lower body portion is skirt-shaped, it will be connected to the upper body portion to form a one-piece garment.

[0087] Furthermore, in the aforementioned romper 1, both left-right sides of the upper body part 10 can be separated and unfolded in the front-to-back direction (up-down direction), but the design is not limited to this, and the upper body part may also be unfolded in the left-to-right direction. For example, as shown in Figures 12A and 12B, the upper body part 210, which is integrated with the rear of the trouser-shaped lower body part 220 with a supporter part 230 on the skin side, may have a front-opening shape. In this upper body part 210, half of the front body part 212 is connected to one side of the back body part 211, and the other half of the front body part 212 is connected to the opposite side of the back body part 211, and they are engaged by an engaging part 213 (for example, a snap button) in the center in the left-to-right direction. As shown in Figures 12A and 12B, the upper body part 210 may have sleeves, and the sleeves may be short-sleeved or long-sleeved. Furthermore, the upper main body may be of the kimono type that can be worn without putting the head through the neck opening, or the shoulder and side portions on one side may be separable, and the upper main body may unfold in the left-right direction.

[0088] Up to this point, we have illustrated examples of one-piece garments in which both the upper and lower main body sections can be unfolded in the front-to-back or left-to-right directions. However, it is sufficient if at least one of the upper and lower main body sections is unfoldable, which improves the ease of putting on the one-piece garment and the absorbent pads or diapers used in conjunction with it.

[0089] ===Other Embodiments=== The embodiments described above are provided to facilitate understanding of the present invention and are not intended to limit its interpretation. The present invention can be modified and improved without departing from its spirit, and it goes without saying that equivalents thereof are included.

[0090] For example, while infant clothing was given as an example of clothing capable of supporting an absorbent pad or diaper, adult clothing may also be used. Furthermore, the absorbent pad supported by the clothing is not limited to absorbent pads that absorb urine or feces, but may also be a sanitary napkin or a panty liner.

[0091] In the above embodiment, an example was given in which the absorbent pad is supported by the support surface of the supporter portion, but the embodiment is not limited to this. The support surface of the supporter portion in the above embodiment (for example, the support surface 30s of the supporter portion 30 shown in Figure 2 and the support surface of the supporter portion 130 in Figure 11A) can also function as a support surface for supporting a diaper. Specifically, examples of diapers include disposable tape-type diapers, disposable pant-type diapers, and disposable diapers in which one side in the width direction is tape-type and the other side is pant-type. Even when the supporter portion in the above embodiment supports a diaper, the same effect as when the supporter portion supports an absorbent pad can be obtained, such as the diaper being less affected by movement from the upper main body portion.

[0092] Furthermore, as with the romper 1 in Figure 2 and the one-piece garment 100 in Figure 11A, if the lower main body parts 20, 120 and the support parts 30, 130 can be unfolded in the front-to-back direction on both sides in the left-to-right direction, the unfolded tape-type diaper can be set in the support parts 30, 130 and then placed under the back of the wearer in a supine position for wearing. [Explanation of Symbols]

[0093] 1. Trousers (one-piece garment), 10 Upper main body section, 11 Upper front panel, 12 Upper back panel, 13 Upper engaging portion, 20 Lower body part, 20W waist section, 20L lower part of main body, 21 lower engagement part; 30 Supporters Club, 31 Pad engagement portion (engagement portion of the pad or diaper), 40 Upper and lower engaging parts, 50 absorbent pads, S1 stretch area, S2 stretch area, 100 One-piece garments, 110 Lower body part, 120 Upper body part, 130 Supporters Club, 200 One-piece garments, 210 Lower body part, 220 Upper body part, 230 Supporters Club,

Claims

1. It has mutually orthogonal vertical, horizontal, and front-to-back directions, The upper body part is worn on the upper body, It is integrated with the upper main body at the rear, and the lower main body is worn on the lower body, A one-piece garment having the following features: At least one of the upper body portion and the lower body portion is expandable in the front-rear direction or the left-right direction, and has an engaging portion for detachably engaging the expandable portion. On the skin-facing side in the thickness direction of the lower main body, a support portion is provided which has a support surface for supporting an absorbent pad or diaper. The upper ends of the front and rear support portions are each fixed to the lower main body portion by upper end fixing portions, characterized in that they are a one-piece garment.

2. The one-piece garment according to claim 1, The aforementioned lower main body portion on the rear side is characterized in that it has an expandable region that expands and contracts in the left-right direction at the boundary with the upper main body portion, making it a one-piece garment.

3. The one-piece garment according to claim 2, In the vertically extended and unfolded state of the lower main body and the supporter portion, A one-piece garment characterized in that the maximum width in the left-right direction of the stretchable area is greater than or equal to the minimum width in the left-right direction of the support portion.

4. A one-piece garment according to claim 2 or 3, In the vertically extended and unfolded state of the lower main body and the supporter portion, A one-piece garment characterized in that the maximum width in the left-right direction of the stretchable area is greater than or equal to the maximum width in the left-right direction of the rear upper end fixing portion.

5. A one-piece garment according to claim 2 or 3, The support surface of the supporter portion is provided with a pad or diaper engagement portion that removably engages with the absorbent pad or diaper. In the vertically extended and unfolded state of the lower main body and the supporter portion, A one-piece garment characterized in that the maximum width in the left-right direction of the stretchable area is greater than or equal to the maximum width in the left-right direction of the engagement portion of the pad or diaper.

6. A one-piece garment according to any one of claims 1 to 3, On both sides in the left-right direction, the lower main body and the supporter are expandable in the front-rear direction. The aforementioned front lower body portion is characterized in that, at its upper end, it has a front expandable region that expands and contracts in the left-right direction, making it a one-piece garment.

7. The one-piece garment according to claim 6, The support surface of the supporter portion is provided with a pad or diaper engagement portion that removably engages with the absorbent pad or diaper. In the vertically extended and unfolded state of the lower main body and the supporter portion, A one-piece garment characterized in that the maximum width in the left-right direction of the front stretchable area is greater than or equal to the maximum width in the left-right direction of the engagement portion of the pad or diaper.

8. A one-piece garment according to any one of claims 1 to 3, The front lower body portion has upper and lower engaging portions on the non-skin side that are detachably engaged with the front upper body portion. The aforementioned front lower body portion has a front expandable region at its upper end that expands and contracts in the left-right direction, The upper and lower engaging portion is provided below the upper end of the front stretchable region, characterized in that it is a one-piece garment.

9. The one-piece garment according to claim 8, In the vertical direction, when the range from the lower end of the front expandable region to a length twice the maximum length of the front expandable region in the vertical direction, is defined as the first range, The upper and lower engaging portions are provided within the first range, characterized in that the garment is a single piece of clothing.

10. The one-piece garment according to claim 8, The front portion of the support surface of the supporter portion is provided with a pad or diaper engagement portion for removably engaging with the absorbent pad or diaper. The upper and lower engaging portions are positioned below the engaging portions of the pad or diaper, characterized in that they are part of a one-piece garment.

11. A one-piece garment according to any one of claims 1 to 3, On both sides in the left-right direction, the upper main body, the lower main body, and the supporter are expandable in the front-rear direction. The engagement portion has an upper engagement portion that engages with the side portion of the upper main body portion on one side in the left-right direction, and a lower engagement portion that engages with the side portion of the lower main body portion on one side in the left-right direction. The upper engaging portion provided on the rear upper main body portion is characterized in that it has a portion that overlaps with the lower engaging portion provided on the rear lower main body portion in the left-right direction, making it a one-piece garment.

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