Cloth diaper cover and one-piece garment

Abstract

In a cloth diaper cover (1) used in conjunction with an absorbent pad or diaper, in an unfolded and elongated state, it has mutually orthogonal length, width and thickness directions, and has a main body (2) and a size adjustment member (10) for adjusting the length of the main body (2). The size adjustment member (10) has a fixing part (11) fixed to the main body (2) and a mounting part (12) that can be attached and detached from the main body (2). When the two central areas of the cloth diaper cover (1) are divided into four equal parts in the length direction, the fixing part (11) is entirely located in the crotch area.

Description

Technical Field

[0001] This invention relates to cloth diaper covers and onesie clothing. Background Technology

[0002] A "cloth diaper cover" is known for its use, where absorbent pads or diapers that absorb urine and other excrement are placed in the crotch area. Patent Document 1 discloses menstrual underwear for use with sanitary napkins, etc. It describes that a support panty is sewn onto the outer surface of the waistband portion of the back panel of this menstrual underwear, and a through-hole for inserting a connecting strap of the support panty is provided on the outer surface of the waistband portion of the front panel; therefore, the support panty can press down on the menstrual underwear and sanitary napkin from the outside of the menstrual underwear, stably holding the sanitary napkin in place and suppressing menstrual blood leakage.

[0003] Prior art literature

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2022-201 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] According to Patent Document 1, the sanitary underwear allows the accompanying sanitary napkin (absorbent pad or diaper) to fit snugly against the wearer, thus suppressing leakage. However, the support underwear is integrally designed from the upper end of the back panel (waistband) to the upper end of the front panel (waistband), which compresses the entire sanitary underwear. Consequently, it also creates a feeling of pressure on areas other than the crotch area where the wearer wants the absorbent pad or diaper to fit snugly, reducing the wearing comfort.

[0008] The present invention was made in view of the aforementioned problems, and its object is to provide absorbent pads or diapers that fit snugly against the wearer's crotch and provide a comfortable wearing experience, as well as cloth diaper covers and bodysuits.

[0009] Solution for solving the problem

[0010] The main invention for achieving the above objectives is a cloth diaper cover, which is used in conjunction with an absorbent pad or diaper, characterized in that...

[0011] The aforementioned cloth diaper cover, in its unfolded and extended state, has mutually orthogonal length, width, and thickness directions, and includes a main body component and a dimensional adjustment component for adjusting the length of the main body component in the aforementioned length directions.

[0012] The aforementioned size adjustment component has a fixing part that is fixed to the aforementioned main component and a detachable part that can be attached to and detached from the aforementioned main component.

[0013] When the two central areas of the cloth diaper covering the above-mentioned length direction are defined as the crotch area, the entire fixing part is located in the crotch area.

[0014] Other features of the invention will become apparent from the description and accompanying drawings.

[0015] The effects of the invention

[0016] According to the present invention, absorbent pads or diapers that can be used together are provided in close contact with the wearer's crotch area and provide a comfortable wearing experience, as well as cloth diaper covers and bodysuits. Attached Figure Description

[0017] Figure 1 This is a top view of the diaper cover 1 in its unfolded and elongated state, viewed from the side of the skin.

[0018] Figure 2 This is a top view of the diaper cover 1 in its unfolded and elongated state, viewed from the non-skin side.

[0019] Figure 3 This is a schematic three-dimensional view of the diaper cover 1 in its wearing state.

[0020] Figure 4A and Figure 4B This is an explanatory diagram of the adjustment method for the size adjustment component 10.

[0021] Figure 5 This is a top view showing a portion of the diaper cover 1 in its unfolded and extended state.

[0022] Figure 6 This diagram shows the length adjustment via snap 50.

[0023] Figure 7 This diagram shows the length adjustment via snap 50.

[0024] Figure 8A and Figure 8B This is an explanatory diagram of the locking position of the size adjustment component 10.

[0025] Figures 9A-9C This is an explanatory diagram of a modified example of the size adjustment component 10.

[0026] Figure 10 This is an illustration of a cloth diaper cover 70 in the style of underwear.

[0027] Figure 11 This is a perspective view showing the state of the outer pants-type diaper cover 100 during use.

[0028] Figure 12 This is a schematic top view of the trouser-type diaper cover 100 as seen from the side of the skin, unfolded in the vertical direction.

[0029] Figure 13 This is a three-dimensional diagram showing the state of the jumpsuit 200 during its wear.

[0030] Figure 14 This is an illustration of the jumpsuit 200 in its unfolded and stretched state.

[0031] Figure 15 This is an explanatory diagram of a modified example of a jumpsuit 205 in an unfolded and elongated state. Detailed Implementation

[0032] Based on the description in this specification and the accompanying drawings, at least the following will become clear.

[0033] (Method 1)

[0034] A cloth diaper cover, used in conjunction with an absorbent pad or diaper, is characterized in that, in its unfolded and extended state, the cloth diaper cover has mutually orthogonal length, width, and thickness directions, and has a main body member and a size adjustment member for adjusting the length of the main body member in the length direction. The size adjustment member has a fixing part fixed to the main body member and a detachable part that can be attached to or detached from the main body member. When the two central regions of the cloth diaper cover divided into four equal parts in the length direction are designated as the crotch portion, the fixing part is entirely located in the crotch portion.

[0035] According to method 1, the length of the main component located in the wearer's crotch area can be adjusted by the size adjustment component (pulling the main component and creating a pinching effect), thus eliminating any looseness in the main component. Therefore, the absorbent pad or diaper used with it can fit snugly against the wearer's crotch area (excretion opening). Furthermore, it prevents areas other than the crotch area where looseness is to be eliminated from fitting excessively against the wearer, improving the wearing comfort.

[0036] (Method 2) The cloth diaper cover as described in Method 1, characterized in that the fixing part is fixed to the non-skin side of the main body component, and the mounting and dismounting part is detachable relative to the non-skin side of the main body component.

[0037] According to method 2, after the diaper cover is put on the wearer, the sizing adjustment mechanism can easily adjust the looseness of the crotch area. Therefore, it can compensate for any shift or loosening of the waistline during wear and also help to suppress leakage of excrement.

[0038] (Method 3) The cloth diaper cover as described in Method 1 or 2 is characterized in that, in the unfolded and extended state, the size adjustment member is disposed across the center of the cloth diaper cover in the length direction.

[0039] According to method 3, a size adjustment component can be installed at a location where the main component is prone to loosening relative to the wearer's crotch area. Furthermore, even after the wearer is wearing a diaper cover, the size adjustment component can be easily pulled to adjust for looseness in the crotch area.

[0040] (Method 4) The cloth diaper cover as described in any one of Methods 1 to 3 is characterized in that, in the unfolded and extended state, the detachable part is provided on the ventral side in the length direction compared to the fixed part.

[0041] According to method 4, the user can pull the size adjustment component towards the abdomen. Therefore, it is easy to adjust the size using the size adjustment component when caregivers or others are facing the wearer while putting on the diaper cover. In addition, even after the diaper cover has been put on the wearer, it is easy to pull the size adjustment component to easily adjust the looseness in the crotch area.

[0042] (Method 5) The cloth diaper cover as described in any one of Methods 1 to 4, characterized in that the size adjustment member is provided at the center of the cloth diaper cover in the width direction.

[0043] According to method 5, the looseness of the main component relative to the wearer's crotch area can be directly eliminated. In addition, even after the wearer is wearing a diaper cover, it will not snag on the wearer's legs and the size adjustment component can be easily pulled, making it easy to adjust the looseness in the crotch area.

[0044] (Method 6) A cloth diaper cover as described in any one of Methods 1 to 5, characterized in that one of the main body component and the mounting / removing part is provided with a hook, and the other of the main body component and the mounting / removing part can be secured with the hook.

[0045] According to method 6, the size adjustment component can be secured simply by bringing the mounting part into contact with the main component, and can be removed from the main component by gently pulling it. Therefore, even after the wearer has put on a diaper cover, the size adjustment component can easily adjust the looseness of the crotch area.

[0046] (Method 7) The cloth diaper cover as described in Method 6, characterized in that the hook material is provided in the above-mentioned mounting and disassembly part.

[0047] According to method 7, the hook material is difficult to come into contact with the user, which can prevent the diaper cover from losing its tactile feel. In addition, it can also prevent foreign objects from adhering to the hook material.

[0048] (Method 8) The cloth diaper cover as described in any one of Methods 1 to 7, characterized in that, in the unfolded and extended state, the maximum length of the length direction of the size adjustment member is more than 13% of the length in the length direction at the center of the width direction of the cloth diaper cover.

[0049] According to method 8, compared to the case where the length of the size adjustment member is less than 13% of the length of the diaper cover, the length occupied by the size adjustment member in the length direction of the diaper cover becomes longer. Therefore, the slack of the main body member can be adjusted over a wide range throughout the length direction of the diaper cover.

[0050] (Method 9) The cloth diaper cover as described in any one of Methods 1 to 8, characterized in that, in the unfolded and extended state, the maximum length of the length direction of the size adjustment member is less than 25% of the length in the length direction at the center of the width direction of the cloth diaper cover.

[0051] According to method 9, compared to cases where the length of the size adjustment component is more than 25% of the length of the diaper cover, the position of the crotch area where the looseness of the main component should be eliminated can be adjusted more reliably.

[0052] (Method 10) The cloth diaper cover as described in any one of Methods 1 to 9, characterized in that the cloth diaper cover has a pair of other size adjustment members for adjusting the length of the main body member in the length direction, and the pair of other size adjustment members are provided on both sides of the cloth diaper cover in the width direction.

[0053] According to method 10, the size of the diaper cover (main body component) can be adjusted according to the wearer's body shape (leg circumference). Furthermore, the length of the diaper cover can be adjusted evenly and evenly in the width direction. Therefore, after pre-adjusting the length of the diaper cover according to the wearer's body shape using other size adjustment components, the diaper cover can be put on the wearer. Furthermore, after the diaper cover is put on, the length of the diaper cover (main body component) can be finely adjusted by the size adjustment components, eliminating looseness in the crotch area and compensating for waist circumference shifts or looseness, thus improving the fit of the diaper cover.

[0054] (Method 11) The cloth diaper cover as described in Method 10 is characterized in that, in the unfolded and extended state, the other size adjustment members are located on the abdominal side relative to the center of the cloth diaper cover in the length direction.

[0055] According to method 11, when sitting or lying down, other size adjustment components are unlikely to be located under the wearer's body, preventing the wearer from experiencing any foreign body sensation. Therefore, the diaper cover can improve the wearing comfort.

[0056] (Method 12) The cloth diaper cover as described in Method 10 or 11, characterized in that, in the unfolded and extended state, the mounting and disassembly part is located on one side of the length direction relative to the fixing part, and the other size adjustment member is located on the other side of the length direction relative to the fixing part.

[0057] According to method 12, the dimensional adjustment component can be secured to the main component by crossing the portion where the length has been adjusted by other dimensional adjustment components (e.g., the fold line of the main component). Thus, even in areas where other dimensional adjustment components are not present, it is easy to maintain the state where the length of the main component is adjusted to be short.

[0058] (Method 13) The cloth diaper cover as described in any one of Methods 10 to 12, characterized in that the other size adjustment member is a snap fastener, the snap fastener having a male fastener and a female fastener, in the unfolded and extended state, the area in the length direction from the center position of the male fastener to the center position of the female fastener is designated as a first region, and the area in the length direction where the fixing part is located is designated as a second region, at which time, the average value of the curvature of the side edge of the cloth diaper cover in the width direction in the first region is less than the average value of the curvature of the side edge of the cloth diaper cover in the width direction in the second region.

[0059] According to method 13, the side edge of the diaper cover with snaps is gently curved. Therefore, when the snaps are fastened, the portion of the main body component with minimal change in length in the width direction can be folded. This reduces the difference in the planar shape of the diaper cover before and after the snaps are fastened. Furthermore, in the case of male and female fasteners, for example, the degree of freedom in their locking positions is high, and while occasional misalignment may occur, the male and female fasteners uniquely define their mating position. Therefore, the user can fasten the snaps without hesitation. Additionally, since the snaps are difficult to detach, it is easy to maintain the diaper cover in its adjusted length state.

[0060] (Method 14) The cloth diaper cover as described in any one of Methods 1 to 13, characterized in that the size adjustment member is elastic in the length direction, and when the length of the size adjustment member in the natural state is set to 100% in the length direction, the force required to make the size adjustment member extend 120% in the length direction is 1N / 25mm or less.

[0061] According to method 14, the size adjustment member extends more easily than in cases where the force required for elongation is greater than 1 N / 25 mm. Therefore, the user can easily pull on the size adjustment member. Furthermore, because the size adjustment member easily follows the wearer's movements, it is difficult for the size adjustment member to detach from the main body component.

[0062] (Method 15) The cloth diaper cover as described in any one of Methods 1 to 14, characterized in that the size adjustment member is elastic in the length direction, and when the length of the size adjustment member in the natural state is set to 100%, the force required to make the size adjustment member extend 120% in the length direction is less than the clamping force between the main body member and the mounting / removing part.

[0063] According to method 15, compared to the opposite case, the size adjustment component is easier to extend and follow the wearer's movements. On the other hand, the locking force between the main component and the mounting / removing part is increased. Therefore, the mounting / removing part is difficult to detach from the main component.

[0064] (Method 16) The cloth diaper cover as described in any one of Methods 1 to 15, characterized in that, in the crotch area, the air permeability in the thickness direction is 10 μm. 3 / m 2 / minute or more and 100m 3 / m 2 / minute or less.

[0065] According to method 16, with an air permeability of less than 10m... 3 / m 2 Compared to situations where the breathability is less than 100m / minute, diaper covers offer better breathability, preventing stuffiness and improving comfort. On the other hand, compared to breathability greater than 100m / minute... 3 / m 2 Compared to situations where the strength is less than 1 minute, this ensures the strength (durability) of the diaper cover during use.

[0066] (Method 17) The cloth diaper cover as described in any one of Methods 1 to 16, characterized in that the cloth diaper cover does not have a waterproof layer.

[0067] According to method 17, the dehydration effect during washing is improved. Furthermore, since it lacks a waterproof layer, breathability is also improved, allowing air to easily pass through the cloth diaper cover. Therefore, it dries easily after washing. Additionally, due to the improved breathability, the inside of the cloth diaper cover is less likely to become stuffy. Therefore, it provides a better wearing experience.

[0068] (Method 18) A cloth diaper cover as described in any one of Methods 1 to 17, characterized in that a pair of fastening portions are provided at both ends of the width direction of at least one of the dorsal side portion and the ventral side portion in the length direction.

[0069] According to method 18, even if the crotch area of ​​the main body component is loose when worn, the looseness can be eliminated by the size adjustment component.

[0070] (Method 19) A onesie has an upper body part for wearing on the upper body and a lower body part for wearing on the lower body, and is used in conjunction with an absorbent pad or diaper. The lower body part, in its unfolded and extended state, has mutually orthogonal length, width and thickness directions, and has a main body member and a size adjustment member for adjusting the length of the main body member in the length direction. The size adjustment member has a fixing part fixed to the main body member and a detachable part that can be attached to or detached from the main body member. When the two central regions of the area of ​​the main body member that overlaps with the leg opening in the length direction are divided into four equal parts in the length direction are defined as the crotch area, the fixing part is entirely located in the crotch area.

[0071] According to method 19, the length of the main body component located in the wearer's crotch area can be adjusted by the size adjustment component, eliminating any looseness in the main body component. Therefore, the absorbent pad or diaper used with the diaper can fit snugly against the wearer's crotch area (excretion opening). Furthermore, it prevents areas other than the crotch area where looseness is to be eliminated from fitting excessively snugly against the wearer, thus improving the wearing comfort.

[0072] ===First Implementation Method===

[0073] As an example of the cloth diaper cover according to the present invention, the first embodiment mainly exemplifies the example of a strap-type diaper cover for infants and young children. However, it is not limited to the above, and the cloth diaper cover according to the present invention can also be used in, for example, underwear-type diaper covers, or diaper covers (with leg openings) where one side in the width direction is strap-type and the other side is underwear-type. In addition, the wearer of the cloth diaper cover in the first embodiment and the second embodiment described later can also be an adult or an animal. In the following description, the cloth diaper cover will be simply referred to as a "diaper cover".

[0074] <<Basic Components of a Diaper Cover>>

[0075] Figure 1 This is a top view of the diaper cover 1 in its unfolded and elongated state, viewed from the side of the skin. Figure 2 This is a top view of the diaper cover 1 in its unfolded and elongated state, viewed from the non-skin side. Figure 3 This is a schematic three-dimensional view of the diaper cover 1 in its wearing state.

[0076] The unfolded state refers to the state where the diaper cover 1 is unfolded into a flat surface after being folded open. In the case of underwear-type diaper covers, this means that the diaper cover is unfolded into a flat surface by separating the joints on both sides (underarms) in the width direction of the front and back panels. The stretched state refers to the state where the diaper cover 1 is stretched without wrinkles. Specifically, this means that it is stretched until the dimensions of the material (e.g., fabric) constituting the diaper cover 1 are the same as or close to the dimensions of a single piece of that material (e.g., fabric).

[0077] The diaper cover 1, in its unfolded and stretched state, has mutually orthogonal length, width, and thickness directions. In the length direction, the side that contacts the wearer's abdomen is called the "abdominal side," and the side that contacts the wearer's back is called the "back side." In the thickness direction, the side closer to the wearer's skin is called the "skin side," and the opposite side is called the "non-skin side."

[0078] The diaper cover 1 has a main body component 2 and a size adjustment component 10. The main body component 2, in its unfolded and extended state, has a roughly hourglass-shaped planar shape, narrowing from the center in the length direction to the inward side in the width direction. The size adjustment component 10 is a component for adjusting the length of the main body component 2 in the length direction.

[0079] In this specification, in the diaper cover 1 in its unfolded and extended state, the portion on the ventral side of the central CL in the length direction is designated as the ventral side 1A, and the portion on the back side of the central CL in the length direction is designated as the back side 1B. The diaper cover 1 is a strap type (open type), and in its unfolded and extended state, a pair of fastening portions 3 are provided at both ends of the back side 1B in the width direction. Figure 1 The fastening part 3 is a hook material (male component of the Velcro) with multiple fastening protrusions. The fastening part 3 can be detachably fastened to the non-skin side of the abdominal side 1A. The fastening part 3 can be directly fastened to the fabric constituting the main body 2, or it can be fastened to the female component of the Velcro provided on the abdominal side 1A. Figure 3 As shown, when worn, the diaper cover 1 is folded approximately in half along its length, and the two ends of the back side 1B (hereinafter also referred to as "wings 4") in the width direction are folded back inward in the width direction, with the fastening part 3 fastening to the non-skin side of the abdominal side 1A. Thus, a waist opening BH along the wearer's waist and a pair of leg openings LH along the wearer's legs are formed on the diaper cover 1.

[0080] The diaper cover 1 (main body component 2) is made of cloth and is formed from reusable fabric (sheet component). Examples of the fabric constituting the diaper cover 1 include "woven fabric" or "knitted fabric." "Woven fabric" refers to a flat fabric formed by interlacing weft threads at right angles relative to a large number of parallel warp threads; for example, fabric called "cloth." On the other hand, "knitted fabric" refers to a flat fabric formed by making loops of yarn and connecting other loops to these loops; for example, fabric called "knitted fabric." The fibers constituting the fabric are not particularly limited; for example, they can be natural fibers such as cotton and silk, or synthetic fibers such as polyester, polyurethane, nylon, and acrylic, semi-synthetic fibers such as cellulose acetate, and recycled fibers such as rayon. These fibers can be used alone or in combination.

[0081] The diaper cover 1 is used in conjunction with an absorbent pad (not shown) to absorb urine and other excrement. The absorbent pad is attached to the skin side of the diaper cover 1 by contacting it against the wearer's excretory opening (urine or feces opening) during wear. The absorbent pad can be either washable and reusable or disposable. Although in Figure 1 The diaper cover 1 does not have a locking area (such as Velcro) for attaching and detachably securing the absorbent pad, but it may also have a marking indicating the installation position of the absorbent pad.

[0082] As described above, when the diaper cover 1 is made of cloth, it can be reused by washing (repeatedly). Since the diaper cover 1 is reusable and the absorbent pad used is also made of reusable material, waste can be further reduced. On the other hand, by using disposable absorbent pads, the number of washes can be reduced, alleviating the burden on users and the environmental impact caused by washing. When using disposable absorbent pads, waste is reduced compared to using strip-type disposable diapers, thus reducing the environmental impact. The diaper cover 1 also needs to be washed, but the number of times it needs to be washed is less than the number of times the absorbent pad needs to be changed and washed every time there is an urination. In other words, by using both disposable absorbent pads and the diaper cover 1, waste is reduced, the number of washes is decreased, and the burden on users and the environmental impact caused by washing are alleviated. Furthermore, the diaper cover 1 of this embodiment has the size adjustment member 10 described later, thus allowing the absorbent pad used to fit snugly against the wearer's crotch. Therefore, excrement is absorbed by the internal absorbent pad, making it difficult for it to leak into diaper covers, clothing, or bedding, thus reducing the frequency of washing. This also reduces the burden on users and the environmental impact of washing.

[0083] <Regarding telescopic sections and low telescopic sections>

[0084] like Figure 1As shown, the diaper cover 1, in its unfolded and extended state, includes: a "belly-side stretchable portion 21" located at the end of the ventral side in the length direction and at the center in the width direction, capable of stretching and contracting in both the length and width directions; a "back-side stretchable portion 41" located at the end of the dorsal side in the length direction and at the center in the width direction, capable of stretching and contracting in both the length and width directions; a low stretchable portion 60 continuously arranged in the length direction from a position adjacent to the belly-side stretchable portion 21 to a position adjacent to the back-side stretchable portion 41; and leg stretchable portions 30 arranged adjacent to both ends of the low stretchable portion 60 in the width direction, capable of stretching and contracting in both the length and width directions. Furthermore, at least a portion of the boundary B1 between the belly-side stretchable portion 21 and the low stretchable portion 60 slopes from the end in the width direction toward the center and from the belly side in the length direction toward the dorsal side.

[0085] Furthermore, the ventral telescopic portion 21 and the dorsal telescopic portion 41 are easier to extend in the width direction compared to the low telescopic portion 60. That is, the average value of the force required to extend the ventral telescopic portion 21 by a predetermined length per unit length in the length direction and the average value of the force required to extend the dorsal telescopic portion 41 by a predetermined length per unit length in the length direction are less than the average value of the force required to extend the low telescopic portion 60 by a predetermined length per unit length in the length direction.

[0086] The ventral elastic portion 21 and the dorsal elastic portion 41 extend and retract not only in the width direction but also in the length direction, thus easily following the wearer's waistline movements. Therefore, they are less likely to cause pressure on the wearer's waist, improving the comfort of the diaper cover 1. Furthermore, they minimize the possibility of gaps between the diaper cover 1 and the wearer's waistline, suppressing leakage of excrement from the waist opening BH. Similarly, the leg elastic portion 30 easily matches the wearer's leg circumference, suppressing leakage from the leg opening LH.

[0087] On the other hand, when wearing diaper cover 1 (example: Figure 3 The low-elasticity portions 60A on the ventral side and 60B on the dorsal side are pulled outwards in the width direction, becoming stretched. Therefore, the wearer's abdomen and buttocks are supported by the stretched low-elasticity portions 60. In particular, the wearer's rounded abdomen (the bulging abdomen of an infant) is supported from the crotch side by the low-elasticity portions 60A on the ventral side, surrounded by the sloping boundary B1. Therefore, the diaper cover 1 can be prevented from shifting (slipping) relative to abdominal movement.

[0088] In addition, such as Figure 1 As shown, the low-elasticity section 60 presents an approximate X-shape when unfolded. Therefore, when worn (e.g., ... Figure 3The abdominal and back areas easily form a continuous ring shape. Therefore, the low-elasticity section 60 is configured to surround the wearer's waist and is fixed by the wearer's lumbar bones under the armpits. This can suppress the positional shift of the diaper cover 1 in the waist direction. In addition, the low-elasticity section 60 is kept stretched outward and upward along the width direction towards the lumbar bones, providing support by lifting the abdomen or buttocks.

[0089] Furthermore, as a method to differentiate the ease of stretching of the stretchable portions (21, 30, 41) and the low-stretchable portion 60, an example can be found by using fabrics with different ease of stretching in each part. By sewing together the fabrics used for the stretchable portions (21, 30, 41) and the fabrics used for the low-stretchable portion 60, a cloth diaper cover 1 can be formed. Specifically, in textiles, by using highly elastic yarns (yarns made of elastic fibers) or changing the yarn density, a stretchable (easily lengthened) textile can be formed. Since woven fabrics are constructed by connecting a large number of loops, even a small force can cause significant stretching and contraction by deforming each loop.

[0090] Furthermore, the ventral stretchable portion 21 can stretch and contract in both the length and width directions. Specifically, in the ventral stretchable portion 21, the parts where stretchability is mainly manifested (excluding parts where the fabric is folded back, or where seams are formed, or where flat rubber is provided, or where twill tape is sewn on), the elongation rate in both the length and width directions is preferably 120% or more, more preferably 125% or more. That is, the elongation rate in both the length and width directions of the fabric constituting the ventral stretchable portion 21 (the stretchable fabric) is preferably 120% or more, more preferably 125% or more. "Elongation rate" refers to the ratio (=G1 / G0) of the length after stretching (G1) to the length before stretching when the target part is pulled in the stretching direction (length direction or width direction) with a specified force. Specifically, a portion of the fabric is cut from the target part (here, the ventral stretchable portion 21) to serve as a sample piece. Alternatively, if the fabric constituting the target part can be prepared, a sample piece is formed from that fabric. The sample piece is preferably rectangular, with a length in the elongation direction of 100 mm plus the gripping width of the chuck (approximately 10 mm at the top and bottom) and a width orthogonal to the elongation direction of 25 mm. However, the size of the sample piece can be appropriately changed according to the size of the part of the object. Using a tensile testing machine (e.g., the Instrand 5965 Model or equivalent), the distance between the chucks is widened at a tensile speed of 100 mm / min. The elongation rate when the sample piece is pulled in the elongation direction with a force of 1 N / 25 mm, i.e., a force of 1 N relative to a sample width of 25 mm, is determined. The initial value of the chuck distance before the test (e.g., 100 mm) is equivalent to the length before stretching (G0), and the distance between the chucks when stretched with a specified force (1 N / 25 mm) is equivalent to the length after stretching (G1). Preferably, the elongation rate can be determined for multiple sample pieces (e.g., n=5), and their average value can be calculated.

[0091] The elongation rate can also be calculated for the leg stretch portion 30 and the back stretch portion 41. The elongation rate in the length direction of the fabric constituting the leg stretch portion 30 is preferably 120% or more, and more preferably 125% or more. The elongation rate in the width direction of the fabric constituting the back stretch portion 41 is preferably 120% or more, and more preferably 125% or more.

[0092] In addition, the low stretch portion 60 may not be stretchable in the width direction (the elongation rate of the fabric constituting the low stretch portion 60 in the width direction may also be less than 102%), or it may be difficult to stretch compared to the ventral stretch portion 21, with a small elongation rate, but it is stretchable in the width direction.

[0093] However, it is not limited to the above configuration. The diaper cover 1 may not have the abdominal stretchable part 21 or the dorsal stretchable part 41, and it may not be made of multiple fabrics with different stretchability. For example, it may be a cloth diaper cover made of one type of fabric (with constant stretchability) and with flat rubber at the ends of the waist or leg circumference.

[0094] <Regarding size adjustment component 10>

[0095] Figure 4A and Figure 4B This is an explanatory diagram of the adjustment method based on the size adjustment component 10. Figure 5 This is a top view showing a portion of the diaper cover 1 in its unfolded and extended state. Figure 6 as well as Figure 7 This diagram shows the length adjustment via snap 50. Figure 6 as well as Figure 7 The left image is a schematic top view of the diaper cover 1 from the non-skin side. Figure 6 as well as Figure 7 The right figure is a schematic cross-sectional view of diaper cover 1. Figure 8A and Figure 8B This is an explanatory diagram of the locking position of the size adjustment component 10. Figure 8A This is an image viewed from the non-skin side. Figure 8B This is a picture viewed from the side of the skin.

[0096] In this instruction manual, such as Figure 2 As shown, when the diaper cover 1 in its unfolded and extended state is divided into four equal parts along its length, the first region from the ventral side is designated as "ventral end region 1A1". The second region from the ventral side is designated as "ventral central region 1A2". The first region from the dorsal side is designated as "dorsal end region 1B1". The second region from the dorsal side is designated as "dorsal central region 1B2".

[0097] The diaper cover 1 has a main body component 2 and a size adjustment component 10 for adjusting the length of the main body component 2. The size adjustment component 10 has a fixing part 11 fixed to the non-skin side of the main body component 2 and a detachable part 12 that can be attached to and detached from the non-skin side of the main body component 2. For example, the detachable part 12 may have a hook material (e.g., a male member of Velcro) with multiple fastening protrusions. For example, the fixing part 11 may be the portion where the size adjustment component 10 is sewn onto the main body component 2. Additionally, as... Figure 2 As shown, when the diaper cover 1 is unfolded and extended, and when the two central regions (abdominal central region 1A2 and dorsal central region 1B2) of the diaper cover 1 when divided into four equal parts along its length are defined as the "crotch area", the fixing part 11 is entirely located in the aforementioned crotch area. That is, the fixing part 11 is located in one or both of the abdominal central region 1A2 and the dorsal central region 1B2.

[0098] Size adjustment component 10 Figure 4B As shown, this is a tongue-shaped component that can be held and pulled by a user (wearer or caregiver, etc.). Figure 4A As shown, the portion of the size adjustment member 10 that is closer to the mounting / removing portion 12 than the fixing portion 11 can be separated from the main body member 2, and the user can hold this separated portion. The size adjustment member 10 in this embodiment has a rectangular planar shape and is formed of fabric.

[0099] The applicant conducted a planar analysis of the diaper cover 1 in its wearing state and found that the length of the two side portions (along the edges of the wearer's leg circumference) in the width direction is necessary compared to the central portion of the diaper cover 1 (the part that abuts against the wearer's crotch). This can be attributed to the fact that the two side portions of the diaper cover 1 in the width direction wrap around the wearer's leg root. Therefore, in a diaper cover 1 formed in a planar shape corresponding to the length of the wearer's leg circumference, loosening is likely to occur at the crotch area when worn.

[0100] The fixing part 11 of the size adjustment member 10 is provided at the crotch part (1A2, 1B2) that abuts against the crotch of the wearer. Therefore, the user can adjust the length of the main body member 2 that abuts against the crotch of the wearer by the size adjustment member 10 in the length direction, and can eliminate the looseness of the main body member 2.

[0101] Specifically, the user pulls the size adjustment component 10 along the length direction (the wearer's vertical direction), and the mounting / removing part 12 is secured to the non-skin side of the main body component 2 at a position closer to the abdomen (waist side) along the length direction. With this configuration, by pulling the main body component 2, which is closer to the back (rear) side than the fixing part 11, towards the abdomen, a state can be formed where the fixing part 11 and the mounting / removing part 12 directly pinch a part of the main body component 2, and the length of the main body component 2 can be adjusted to become shorter.

[0102] By eliminating any looseness in the main component 2 that contacts the wearer's crotch, the absorbent pad inside the diaper cover 1 can be made to fit snugly against the wearer's crotch (excretion opening). This helps to prevent leakage of excrement.

[0103] Furthermore, since the fixing part 11, which serves as the starting point for the pull-size adjustment member 10, is located at the crotch area, the length of the main body member 2, which is intended to eliminate looseness in the crotch area, can be adjusted. Therefore, it prevents parts of the main body member 2 other than the crotch area from pressing unnecessarily against the wearer, thus preventing pressure on the wearer. For example, the wearer's buttocks or abdomen are rounded. The abdomen, in particular, is prone to movement due to breathing, and its shape can change depending on eating or excretion. However, according to the size adjustment member 10 of this embodiment, since the pull starts from the crotch area, it prevents pressure on the buttocks or abdomen, improving the wearing comfort. When the mounting part 12 is secured to the crotch area, it is even less likely to cause pressure. Additionally, when the mounting part 12 is secured to a part of the abdomen that is more active than the buttocks or near the crotch, it prevents the mounting part 12 from detaching due to the wearer's movements.

[0104] Additionally, the size adjustment component 10 is located on the non-skin-facing side of the main body component 2. Therefore, as... Figure 4B As shown, when the wearer is wearing the diaper cover 1, the slack in the crotch area can be adjusted using the size adjustment member 10. Therefore, the locking position of the attachment / removal part 12 can be adjusted according to the slack of the main body member 2 during actual wear, and the length of the main body member 2 can be adjusted. This prevents the attachment / removal part 12 from being excessively locked at the waist, thus avoiding discomfort for the wearer and improving comfort. Furthermore, since the slack in the crotch area can be adjusted after wearing the diaper cover, it can compensate for any shift or loosening of the waistline during wear, and also helps to suppress leakage of excrement. However, the configuration is not limited to the above; the user can also put on the diaper cover 1 while pinching a portion of the main body member 2 with the size adjustment member 10.

[0105] Furthermore, in cases where the size adjustment mechanism 10 is used instead of the main body member 2 that is pinched at the crotch area using snaps, it is difficult to fasten the snaps when the wearer is wearing the diaper cover 1. On the other hand, if the snaps are fastened before wearing, it is difficult to reliably eliminate any actual slack in the crotch area. In addition, the size adjustment mechanism 10 not only pinches a portion of the main body member 2 but also pulls on the main body member 2 that is located behind the fixing part 11. Therefore, compared to cases where the length is adjusted only by snaps, the diaper cover 1 and the absorbent pad fit more snugly against the wearer's crotch area.

[0106] Furthermore, when determining the position of the size adjustment member 10 in the main body component 2 or the length L10 of the size adjustment member 10 in the longitudinal direction, etc., it is as follows. That is, the unfolded and extended state of the diaper cover 1 is as follows. Figure 2As shown, after the main body member 2 is formed into an unfolded and elongated state, the unfolded and elongated state of the diaper cover 1 is defined as follows: the size adjustment member 10 is unfolded into a flat surface without wrinkles and secured to the main body member 2 by the mounting / removing part 12. For example, if the size adjustment member 10 has rubber, the diaper cover 1 is elongated to the point that wrinkles (shrinkage) caused by the rubber are eliminated. If the size adjustment member 10 is made of a stretchable fabric without rubber, the diaper cover 10 is simply unfolded into a flat surface (natural state or a state approximately close to natural state).

[0107] And, as Figure 2 As shown, in the unfolded and extended state of the diaper cover 1, the size adjustment member 10 is preferably positioned across the center CL of the diaper cover 1's length direction. This configuration allows the size adjustment member 10 to be positioned at a location where the main body member 2 is prone to loosening relative to the wearer's crotch area. Therefore, by utilizing the size adjustment member 10 to eliminate looseness in the main body member 2, the absorbent pad can be made to fit snugly against the wearer's crotch area. Furthermore, by positioning the size adjustment member 10 across the center CL of the diaper cover 1's length direction, it is easy to pull the size adjustment member 10 after the wearer has put on the diaper cover 1, making it easy to adjust for looseness in the crotch area.

[0108] Furthermore, it is preferable that the detachable portion 12 of the size adjustment member 10 is located on the ventral side in the length direction compared to the fixing portion 11. In this case, the user can grasp the size adjustment member 10 and pull it towards the ventral side. Diaper covers 1 are mostly changed when the caregiver or other person is facing the wearer. In particular, belt-type diaper covers 1 are changed when the wearer is lying down.

[0109] Therefore, based on the above configuration, adjustments can be easily made using the size adjustment member 10. Specifically, caregivers can easily pull the size adjustment member 10 and easily determine the locking position of the attachment / removal part 12. Furthermore, attaching and removing the attachment / removal part 12 is also easy. Additionally, the wearer can easily attach and remove the attachment / removal part while observing the size adjustment member 10. Moreover, even after the diaper cover 1 is put on the wearer, it is easy to pull the size adjustment member 10 to easily adjust the looseness of the crotch area. However, the attachment / removal part 12 can also be positioned on the back side, further along the length direction than the fixing part 11, contrary to the above description.

[0110] Furthermore, the size adjustment member 10 is preferably located at the center of the diaper cover 1 in the width direction. Specifically, in the diaper cover 1 in its unfolded and extended state, it can be adjusted as follows: Figure 5As shown, the central region S10c of the dimension adjustment member 10 in the width direction is positioned within the central region S10c where the region S10 that overlaps with the dimension adjustment member 10 in the length direction is divided into three equal parts according to its maximum width WS10. Preferably, the entire dimension adjustment member 10 can be positioned within the central region S10c.

[0111] As mentioned above, the central portion of the diaper cover 1 in the width direction is more prone to loosening compared to the two sides in the width direction that wrap around the wearer's groin. Therefore, by providing a size adjustment member 10 in the central portion of the diaper cover 1 in the width direction, the looseness of the main body member 2 relative to the wearer's crotch area can be directly eliminated. As a result, the absorbent pad can fit snugly against the wearer's crotch area. In addition, even after the diaper cover 1 is put on the wearer, it will not snag on the wearer's legs, and the size adjustment member 10 can be easily pulled to adjust the looseness in the crotch area.

[0112] Furthermore, it is preferable that the main body component 2 and the mounting / removing part 12 can be secured by a hook. That is, it is preferable that the hook is provided on one of the non-skin side of the main body component 2 and the mounting / removing part 12, and the other of the non-skin side of the main body component 2 and the mounting / removing part 12 can be secured to the hook. The hook is a component having multiple securing protrusions, and an example is the male component of a Velcro strap.

[0113] With this configuration, the size adjustment member 10 can be secured to the main body member 2 simply by bringing the attachment / removal part 12 into contact with the non-skin side of the main body member 2. Furthermore, the size adjustment member 10 can be easily removed from the main body member 2 by gently pulling it. Therefore, the size adjustment member 10 can be easily attached and detached with minimal force. Consequently, after the diaper cover 1 is put on the wearer, the size adjustment member 10 can be easily attached and detached, and the looseness of the crotch area can be easily adjusted. Additionally, the main body member 2 or the attachment / removal part 12 can have one or more hooks.

[0114] More preferably, a hook can be provided in the attachment / removal part 12. In this embodiment, the attachment / removal part 12 has a male member with Velcro on the skin side (facing the main body member 2) of the size adjustment member 10. In this case, the hook is difficult to come into contact with the user, which can suppress the decrease in the tactile feel of the diaper cover 1. In addition, since the hook is not exposed, it can also suppress the adhesion of foreign objects to the hook.

[0115] Furthermore, in this embodiment, the non-skin-facing side of the main body member 2 is formed of fabric that can be secured to the hook material (male component of Velcro) of the attachment part 12. In this case, the attachment part 12 can be directly secured to the fabric constituting the main body member 2, increasing the degree of freedom in the securing position of the attachment part 12 relative to the main body member 2. Therefore, while finely adjusting the securing position of the attachment part 12, the looseness of the crotch area of ​​the main body member 2 can be eliminated more reliably.

[0116] Alternatively, a target component (e.g., a hook and loop fastener with multiple loops) can be provided on the fabric constituting the main body component 2 to engage with the hook material of the attachment / removal part 12. In this case, the engagement position of the attachment / removal part 12 can be freely adjusted within the range of the target component. Therefore, while fine-tuning the engagement position of the attachment / removal part 12, the looseness of the crotch area of ​​the main body component 2 can be eliminated more reliably.

[0117] Alternatively, either the fabric constituting the main body member 2 or the fabric constituting the size adjustment member 10 can be a hook material (fabric with tiny locking protrusions). In this case, both the main body member 2 and the mounting / removing part 12 are included in the form that can be secured by the hook material. Specifically, when the fabric constituting the size adjustment member 10 is a hook material, the portion of the size adjustment member 10 other than the fixing part 11 becomes the mounting / removing part 12. In this case, the main body member 2 can be made of fabric that can be secured to the fabric of the size adjustment member 10. Conversely, the fabric constituting the main body member 2 can also be a hook material (fabric with multiple tiny locking protrusions). In this case, the size adjustment member 10 can be made of fabric that can be secured to the fabric of the main body member 2.

[0118] However, the configuration is not limited to the above. For example, the mounting / removing part 12 of the size adjustment member 10 can also be one of the male and female fasteners constituting the snap fastener. In this case, the other side of the snap fastener can be provided on a portion of the non-skin side of the main body member 2. In this case, the mounting / removing part can be mounted / removed relative to the non-skin side (the other side of the snap fastener) of the main body member 2. In this case, multiple other sides of the snap fastener can be arranged in the length direction in the main body member 2. With this configuration, the locking position of the size adjustment member 10 can be adjusted.

[0119] In addition, when the diaper cover 1 is unfolded and extended, the maximum length L10 of the size adjustment member 10 in the longitudinal direction is ( Figure 2 The preferred length is La, which is located at the center C in the width direction of the diaper cover 1. Figure 1 ) more than 13% (L10≥La×13%).

[0120] With this configuration, compared to the case where the length L10 is less than 13% of the length La, the length occupied by the size adjustment member 10 in the diaper cover 1 in the longitudinal direction is increased. Therefore, the slack of the main body member 2 (the length of the main body member 2 in the longitudinal direction) can be adjusted over a wide range throughout the longitudinal direction of the diaper cover 1. Specifically, the attachment / removal part 12 can be secured at a position further away from the fixing part 11 in the longitudinal direction, and the length of the main body member 2 that can be pinched between the fixing part 11 and the attachment / removal part 12 can be increased. However, it is not limited to the above configuration, and the length L10 of the size adjustment member 10 may also be less than 13% of the length La of the diaper cover 1.

[0121] In addition, when the diaper cover 1 is unfolded and extended, the maximum length L10 of the size adjustment member 10 in the length direction can also be less than 25% of the length La in the length direction at the center C in the width direction of the diaper cover 1 (L10 < La × 25%).

[0122] In this case, compared to cases where the length L10 is 25% or more of the length La, the position where the slack in the main body member 2 should be eliminated can be adjusted more reliably. In other words, the size adjustment member 10 can be used to guide the user to eliminate the slack in the main body member 2 at the crotch area. Therefore, the internal absorbent pad can fit more reliably against the wearer's crotch area. However, it is not limited to the above configuration; the length L10 of the size adjustment member 10 can also be 25% or more of the length La of the diaper cover 1.

[0123] In addition, such as Figure 2 As shown, when the diaper cover 1 is unfolded and extended, the size adjustment member 10 is preferably recessed into the crotch area (abdominal central region 1A2 and dorsal central region 1B2) of the diaper cover 1. In this case, the position of the main body member 2, which should be eliminated from looseness, can be adjusted more reliably. However, it is not limited to the above configuration. As long as the fixing part 10 is provided at least in the crotch area, the size adjustment member 10 may also extend to the abdominal end region 1A1 or the dorsal end region 1B1.

[0124] In addition, such as Figure 2 As shown, in its unfolded and extended state, the maximum length W10 in the width direction of the size adjustment member 10 is preferably 25 mm or more. This configuration ensures a wider size adjustment member 10 compared to cases where the maximum width W10 is less than 25 mm, making it easier for the user to grip and pull it. However, the maximum width W10 of the size adjustment member 10 is not limited to the above configuration and may be less than 25 mm.

[0125] Furthermore, as mentioned above, the length L10 and width W10 of the size adjustment member 10 refer to the length in a flat state without wrinkles. For example, in the case of a size adjustment member 10 with rubber, it refers to the length in a state where the size adjustment member 10 is stretched until the wrinkles formed by the rubber are eliminated. In the case where the size adjustment member 10 is made of a stretchable fabric without rubber, it refers to the length in a natural state or a state that is substantially close to a natural state.

[0126] Furthermore, it is preferable that the locking force of the non-skin-facing side of the main body member 2 and the attach / remove part 12 is 0.2N or more. With this configuration, compared to cases where the locking force is less than 0.2N, the attach / remove part 12 is less likely to detach from the main body member 2. Therefore, even if the wearer of the diaper cover 1 moves, the size adjustment member 10 can easily maintain a state where the crotch area is not loose. However, the locking force of the non-skin-facing side of the main body member 2 and the attach / remove part 12 is not limited to the above configuration and may be less than 0.2N.

[0127] The locking force of the non-skin side of the main body component 2 and the mounting / removing part 12 can be measured by known methods. A tensile testing machine (such as the Instron 5965 Model or an equivalent device) can be used for comparison. First, cut out the entire size adjustment component 10 and a portion of the main body component 2 (one size larger than the size adjustment component 10) from the diaper cover 1. Next, gently attach all parts of the mounting / removing part 12 to the non-skin side of the main body component 2. Alternatively, if necessary, a gripping portion of the chuck can be formed at the end of the size adjustment component 10 along the length of the diaper cover 1 using a fabric strip. Next, roll a 700g roller once (one-way) along the length of the diaper cover 1 from above the locked main body component 2 and size adjustment component 10 (mounting / removing part 12) to bond the main body component 2 and the mounting / removing part 12. Next, the end of the main body component 2 along the length of the diaper cover 1 and the end of the mounting / removing part 12 of the size adjustment component 10 (or the gripping part made of fabric tape) are clamped by the chucks of the tensile testing machine (the gripping width is about 10 mm). Then, at a constant tensile speed (e.g., 300 mm / min), the distance between the chucks is increased in the direction corresponding to the length of the diaper cover 1 until the mounting / removing part 12 separates from the main body component 2. The maximum tensile load (N) measured during this period is set as the clamping force.

[0128] Furthermore, preferably, the diaper cover 1, in addition to the size adjustment member 10, also has a pair of other size adjustment members for adjusting the length of the main body member 2 in the longitudinal direction. In this embodiment, the diaper cover 1 has a pair of snaps 50 as a pair of other size adjustment members. The pair of snaps 50 are as follows... Figure 6 As shown, it can be installed on both sides in the width direction of the diaper cover 1.

[0129] Through this structure, such as Figure 6 as well as Figure 7 As shown, the length of the diaper cover 1 (main body member 2) can be adjusted evenly and well in the width direction. Therefore, the size of the diaper cover 1 can be adjusted according to the wearer's body shape (leg circumference). Furthermore, the difference in the planar shape of the diaper cover 1 before and after adjustment by the snaps 50 can be reduced. That is, even after fastening the snaps 50, a roughly hourglass-shaped planar shape can be ensured, allowing the diaper cover 1 to fit neatly to the wearer's body. Therefore, after pre-adjusting the length of the diaper cover 1 (main body member 2) according to the wearer's body shape using the snaps 50, the wearer can wear the diaper cover. Furthermore, after wearing the diaper cover 1, the length of the main body member 2 can be finely adjusted by the size adjustment member 10, eliminating looseness in the crotch area and compensating for waistline shifts or looseness, thus improving the fit of the diaper cover 1.

[0130] Specifically, the snap fastener 50 consists of a male snap fastener 51 and a female snap fastener 52 that engages with it. The male snap fasteners 51 and female snap fasteners 52 are arranged with a gap in the length direction and are positioned symmetrically in the width direction. Furthermore, the protrusions and recesses (engaging portions) of the male snap fasteners 51 and female snap fasteners 50 are exposed towards the non-skin-facing side of the main body member 2. For example... Figure 6 As shown, with the snaps 50 undone, the diaper cover 1 has an overall length in the longitudinal direction, plus the length L1 of the leg stretch portion 30 from the abdominal end to the back end in the longitudinal direction. On the other hand, as... Figure 7 As shown, the snap fastener 50 is fastened by engaging the male and female fasteners arranged in the length direction, as shown. Figure 7 As shown in the right figure, a portion of the main body component 2 is folded. Therefore, the overall length of the diaper cover 1 in the longitudinal direction and the length L2 of the leg stretch portion 30 from the abdominal end to the dorsal end in the longitudinal direction are greater than... Figure 6 It is short in length.

[0131] In this way, by adjusting the size of the diaper cover 1 according to the wearer's body shape, it is difficult for gaps to form between the wearer and the diaper cover 1 (especially the gap at the leg opening LH). Therefore, leakage of excrement can be suppressed. In addition, the diaper cover 1 can be used for a long period of time regardless of whether the infant wearing it has grown or not. Therefore, the cloth diaper cover 1, which can be reused by washing, can be used more effectively.

[0132] However, the diaper cover 1 is not limited to the above configuration; it may not have other size adjustment components, and these components may be anything other than the snap fastener 50. For example, male and female Velcro fasteners may be provided instead of the snap fastener 50 as other size adjustment components. Alternatively, cords or rubber cords may be provided at the folds in the fabric constituting the diaper cover 1, and their length can be adjusted to change the length of the diaper cover 1. Furthermore, the number of other size adjustment components may be one or more.

[0133] However, snaps 50 are preferred as other size adjustment components. These other size adjustment components differ from the size adjustment component 10, which adjusts the looseness of the crotch area, and adjust the overall length of the diaper cover 1 (main body component 2). Therefore, before the wearer puts it on, it can be determined whether to fasten the snaps 50 based on the wearer's body shape (size). If the diaper cover 1 is not worn, the snaps 50 can be easily fastened from both sides of the diaper cover 1. Furthermore, compared to Velcro, the snaps 50 have a stronger binding force and are difficult to detach. Therefore, when wearing it (specifically, when pulling the abdominal side 1A after the diaper cover 1 is placed behind the wearer), even if the wearer moves during wear, the snaps 50 are difficult to detach, easily maintaining the diaper cover 1 at a shorter length. Additionally, in cases where the length of the diaper cover 1 is adjusted by rubber cords or the like, irregular folds are formed by shrinking the diaper cover 1. In contrast, in the case of snaps 50 (… Figure 7 Because the portion of the diaper cover 1 is folded, the flatness of the inner surface of the diaper cover 1 is improved. Therefore, it is easier to place an absorbent pad inside the diaper cover 1. Furthermore, in the case of hook and loop fasteners, the degree of freedom in their locking positions is high, and there is a possibility of misalignment of the locking positions or a decrease in locking force due to only partially locking each other. Additionally, in the case of rubber cords, it is difficult to determine the adjustment length. Furthermore, adjusting the rubber cords on both sides in the width direction to the same length is somewhat cumbersome. In contrast, with snaps, the male and female fasteners uniquely determine their interlocking positions. Therefore, the user can fasten the snaps without hesitation.

[0134] Furthermore, in the unfolded and stretched state of the diaper cover 1 ( Figure 1 The snaps 50 (other size adjustment components) are preferably located on the abdominal side relative to the center CL in the length direction of the diaper cover 1. With this configuration, the snaps 50 are unlikely to be located under the wearer's body when sitting or lying down, thus preventing the wearer from experiencing any foreign body sensation. Therefore, the wearing comfort of the diaper cover 1 is improved.

[0135] Furthermore, when the diaper cover 1 is unfolded and extended, the snap 50 (other size adjustment member) on one side in the width direction preferably has a portion that overlaps with the snap 50 on the other side in the width direction. Specifically, at least one of the following conditions can be satisfied: the male snap 51 on one side in the width direction overlaps with the male snap 51 on the other side in the width direction in the length direction; and the female snap 52 on one side in the width direction overlaps with the female snap 52 on the other side in the width direction. Thus, it is preferable that the positions of the snaps 50 on both sides in the width direction are substantially equal.

[0136] With this configuration, the length of the diaper cover 1 can be shortened by folding it at the same position in the longitudinal direction using a pair of snaps 50. Therefore, the length of the diaper cover 1 can be adjusted evenly and well in the width direction. Consequently, the difference in the planar shape of the diaper cover 1 before and after adjustment by the snaps 50 can be reduced, allowing the diaper cover 1 to fit neatly to the wearer's body.

[0137] Furthermore, when the diaper cover 1 is unfolded and extended, and the attaching / removing part 12 is located on the ventral side (one side) of the length direction relative to the fixing part 11, the snap 50 (other size adjustment member) is preferably located on the ventral side (one side) of the length direction relative to the fixing part 11.

[0138] In the aforementioned case, a snap 50 is provided along the length direction on the side where the size adjustment member 10 is pulled, i.e., on the side where the locking and disassembly part 12 is fastened (the belly side). Therefore, as... Figure 8A As shown, the size adjustment member 10 can be secured to the main body member 2 by crossing the crease F1 formed on the non-skin side of the diaper cover 1 when the snap fastener 50 is fastened. On the opposite side of the crease F1 (skin side), as shown... Figure 8B As shown, the pinched part is a pinched (folded) portion that becomes part of the main body component 2. As described above, by securing it with the size adjustment member 10, the fold of the pinched part is difficult to open. That is, the size adjustment member 10 can suppress the opening of the main body component 2 at the part not fastened by the snap 50. Therefore, it is easy to maintain the state in which the length of the main body component 2 is adjusted to be short over a wide range in the width direction.

[0139] More preferably, the size adjustment member 10 can be disposed offset from the position of the snaps 50 in the width direction without overlapping with them. Specifically, the size adjustment member 10 can be disposed between a pair of snaps 50 located on both sides of the diaper cover 1 in the width direction. With this configuration, the size adjustment member 10 can prevent the opening of the main body member 2 at the part not fastened by the snaps 50.

[0140] In addition, such as Figure 5As shown, in the unfolded and extended state of the diaper cover 1, the region along the length direction from the center of the male fastener 51 to the center of the female fastener 52 is designated as the first region R1, and the region where the fixing part 11 of the dimensional adjustment member 10 is located along the length direction is designated as the second region R2. Preferably, the average curvature of the side edges 1s (up to p1~p2) of the diaper cover 1 in the width direction in the first region R1 is less than the average curvature of the side edges 1s (up to p3~p4) of the diaper cover 1 in the width direction in the second region R2. Furthermore, if the positions of the snaps 50 on one side and the snaps 50 on the other side in the length direction are offset, the first region R1 is determined based on the position of the snaps 50 on one side in the width direction along the length direction.

[0141] In other words, preferably, the side edge 1s of the diaper cover 1 in the region R1 where the snap 50 is located has a gentle curve. With this configuration, when the snap 50 is fastened, the portion of the main body member 2 with minimal change in length in the width direction can be folded. Therefore, the difference in the planar shape of the diaper cover 1 before and after adjustment by the snap 50 can be reduced, allowing the diaper cover 1 to fit neatly to the wearer's body.

[0142] The comparison of the average curvature of the side edge 1s of the diaper cover 1 can be performed either visually or based on image data projected from the diaper cover 1 in its unfolded and extended state. Specifically, regions R1 and R2 can be determined in the image data, and the side edge 1s (edge) of the diaper cover 1 in each region R1 and R2 can be detected using image analysis software, and the average curvature of the edge can be calculated for comparison.

[0143] Furthermore, the size adjustment member 10 preferably has elasticity in the length direction. Specifically, when the length of the size adjustment member 10 in its natural state (unstretched, unloaded state) is set to 100%, the force required to extend the size adjustment member 10 by 120% in the length direction is preferably 1 N / 25 mm or less.

[0144] With this configuration, the size adjustment member 10 can be easily extended compared to situations where the force required for elongation is greater than 1 N / 25 mm. Therefore, the user can easily pull the size adjustment member 10. In addition, since the size adjustment member 10 can easily follow the wearer's movements, the mounting and dismounting part 12 of the size adjustment member 10 is difficult to detach from the main body member 10.

[0145] As a method for giving the size adjustment member 10 elasticity, the following methods can be exemplified: forming the size adjustment member 10 from a stretchable fabric (such as the fabric constituting the ventral stretch portion 21 as described above), or installing a rubber in a state of elongation in the length direction on the fabric constituting the size adjustment member 10.

[0146] The force required to elongate the size adjustment member 10 to 120% can be determined using a tensile testing machine (e.g., the Instron 5965 Model or an equivalent device). First, the maximum length in the longitudinal direction and the maximum length in the width direction of the size adjustment member 10 in its natural state are measured. With the size adjustment member 10 not cut from the diaper cover 1, one chuck of the tensile testing machine grasps the fixing part 11 of the size adjustment member 10, while the other chuck pinches the end of the size adjustment member 10 on the mounting / removing part 12 side (the chuck grasping amount is approximately 10 mm). Then, at a tensile speed of 100 mm / min, the distance between the chucks is widened in the direction corresponding to the length direction of the diaper cover 1. The distance between the chucks is widened to 120% (or 130%) of the length of the size adjustment member 10 in its natural state. The tensile load (N) at 120% elongation is then obtained. Based on the maximum length of the adjusting member 10 in its natural state according to the width direction of the diaper cover 1, the tensile load (N) is converted into a value of 25mm width (N / 25mm), which can be compared with 1N / 25mm.

[0147] Furthermore, as described above, when the size adjustment member 10 is elastic in the length direction, it can be done as follows. Preferably, when the length of the size adjustment member 10 in its natural state (unstretched, unloaded state) is set to 100%, the force required to make the size adjustment member 10 extend 120% in the length direction is less than the locking force of the non-skin side of the main body member 2 and the mounting / removing part 12.

[0148] With this configuration, compared to the opposite scenario, the size adjustment member 10 can easily extend and follow the wearer's movements. On the other hand, the locking force of the main body member 2 and the attachment / removal part 12 is increased. Therefore, the attachment / removal part 12 is difficult to detach from the main body member 2, and the size adjustment member 10 can easily maintain the state where the slack in the crotch area is eliminated. In addition, the force (N / 25mm) required to extend the size adjustment member 10 to 120% can be obtained by converting the tensile load (N) measured using the aforementioned method to a value of 25mm width based on the maximum length of the size adjustment member 10 in its natural state in the width direction of the diaper cover 1. The locking force (N / 25mm) of the non-skin side of the main body member 2 and the attachment / removal part 12 can also be obtained by converting the locking force (N) measured using the aforementioned method to a value of 25mm width based on the maximum length of the attachment / removal part 12 in its natural state in the width direction of the diaper cover 1.

[0149] Furthermore, the diaper cover 1 of this embodiment, except for the folded-back portion at the ends, is made of a single layer of fabric. Therefore, it has high breathability in the thickness direction. Specifically, it is preferable that the breathability in the thickness direction at the crotch area (central abdominal region 1A2 and central back region 1B2) where it is located during wear is 10 μm. 3 / m 2 / minute or more and 100m 3 / m 2 / minute or less.

[0150] With this configuration, the air permeability is less than 10m. 3 / m 2 Compared to situations where the breathability is less than 100m³ / min, diaper cover 1 has better breathability, and the inside of diaper cover 1 is less likely to become stuffy. In particular, it can suppress stuffiness in the crotch area where the absorbent pad absorbs excrement, improving the wearing comfort. On the other hand, compared to breathability greater than 100m³ / min... 3 / m 2 Compared to situations where the pressure is reduced per minute, this design ensures the strength (durability) of the diaper cover 1 during use. For example, the diaper cover 1 is unlikely to break even after repeated washing, allowing for long-term use. However, it is not limited to the above configuration; the diaper cover 1 may also be composed of multiple layers of fabric in the thickness direction, and the breathability may fall outside the aforementioned range.

[0151] Air permeability can be measured using the KES-F8-AP1 air permeability tester from Jiaduo Technology Co., Ltd. First, a sample is cut from the target area of ​​the diaper cover 1, for example, with dimensions of approximately 100mm x 100mm (length x width). Next, the sample is placed on the air permeability tester, and the air permeability resistance value is measured. Then, the air permeability resistance value is converted into air permeability (m). 3 / m 2 / minute). The average air permeability is calculated from multiple (e.g., 5) samples.

[0152] Furthermore, the diaper cover 1 is used in conjunction with the absorbent pad. Therefore, the diaper cover 1 preferably does not have a waterproof layer. This configuration improves the dehydration effect during washing. Additionally, the absence of a waterproof layer also improves breathability, allowing air to easily pass through the diaper cover 1. Consequently, the diaper cover 1 dries easily after washing. This further reduces the likelihood of the diaper cover 1 shifting position. Furthermore, the good breathability of the diaper cover 1 prevents stuffiness inside, thus improving wearing comfort.

[0153] Examples of waterproof layers include fabrics (sheet components) made of non-hydrophilic fibers such as polyethylene (PE), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA), and polyethylene terephthalate (PET), or materials that have undergone waterproofing treatment on hydrophilic fabrics.

[0154] Furthermore, preferably, the diaper cover 1 is a strap type, with a pair of fastening portions 3 provided at both ends in the width direction of at least one of the back side portion 1B and the ventral side portion 1A in the length direction. As described above, the diaper cover 1 of this embodiment has hook-and-loop fasteners as fastening portions 3 on both sides (skin side) in the width direction of the back side portion 1B. Not limited to the above configuration, one of the two ends in the width direction of the back side portion 1B and the two ends in the width direction of the ventral side portion 1A may be made of fabric (fastening portion) with multiple tiny fastening protrusions, and the other may be made of fabric (fastening portion) capable of being fastened to the aforementioned fabric. In this case, the two ends in the width direction of the ventral side portion 1A and the back side portion 1B may also be fastened to form a waist opening BH.

[0155] In the case of the belt-type (open type) diaper cover 1 described above, after the back side 1B is laid under the lying wearer, the diaper cover 1 is folded roughly in the center so that the ventral side 1A contacts the wearer's abdomen. Therefore, compared to the case of a diaper cover like an underwear type where the inner absorbent pad is pulled up to fit snugly against the wearer's crotch, there is a possibility of slack at the crotch. In this case, the size adjustment member 10 can eliminate the slack. Therefore, in the case of the belt-type diaper cover 1, the size adjustment member 10 can be used more effectively.

[0156] <Variation Example>

[0157] Figures 9A-9C This is an explanatory diagram of a modified example of the size adjustment member 10. The number of size adjustment members 10 is not limited to one; it can also be as follows: Figure 9A As shown, multiple (two in this case) size adjustment members 10 are arranged in the width direction. In this case, the slack of the crotch can be finely adjusted according to the position in the width direction.

[0158] Furthermore, the planar shape of the size adjustment component 10 is not limited to a rectangle. For example, Figure 9B As shown, the assembly / disassembly part 12 can also be a roughly triangular shape with the thinner side. In this case, the user can easily pinch and pull the thinner end. On the other hand, the thicker part at the base allows for a wide-range pulling of the rear portion of the size adjustment member 10 throughout the width direction, thus suppressing slackness in the crotch area.

[0159] Furthermore, the size adjustment member 10 is not limited to being arranged along the length direction. For example, Figure 9C As shown, the two size adjustment members 10 can also be arranged in a direction inclined relative to the length direction. In this case, pulling the main body member 2 in an X-shape can suppress the loosening of the crotch area.

[0160] Figure 10This is an explanatory diagram of a panty-type cloth diaper cover 70. As shown, a size adjustment member 10 can also be provided at the crotch area of ​​the panty-type cloth diaper cover 70. Specifically, when the panty-type cloth diaper cover 70 is unfolded and extended (not shown), the entire length of the crotch area, divided into four equal parts, can have the fixing portion 11 of the size adjustment member 10 provided. In this case, after wearing the panty-type cloth diaper cover 70, by pulling the size adjustment member 10 and securing it to the non-skin side of the main body member 71, the looseness in the crotch area can be eliminated.

[0161] Up to this point, examples have been shown of the use of a strap-type cloth diaper cover 1 and a panty-type cloth diaper cover 70 in conjunction with absorbent pads. However, these examples are not limited to this; cloth diaper covers 1 and 70 can also be used with cloth diapers. Specific examples of cloth diapers include disposable strap-type diapers, disposable panty-type diapers, and disposable diapers where one side in the width direction is strap-type and the other side is panty-type. When the cloth diaper covers 1 and 70 are used with cloth diapers, the same effect as when used with absorbent pads can be achieved.

[0162] ===Second Implementation Method===

[0163] Figure 11 This is a perspective view showing the state of the outer pants-type diaper cover 100 during use. Figure 12 This is a schematic top view of the outer pant-type diaper cover 100 in its unfolded vertical position, viewed from the side of the skin. In the first embodiment, examples of cloth diaper covers include a brief-shaped or underwear-type cloth diaper cover 1, 70. Figure 3 , 10 Examples of cloth diaper covers include, but the shape of the cloth diaper cover is not limited to this. In the second embodiment, an example of a trouser-type diaper cover 100 can be cited as a cloth diaper cover.

[0164] The outer pants-type diaper cover 100, when worn, has mutually orthogonal vertical, width, and front-back directions, forming a waist opening BH and a pair of leg openings LH. For example... Figure 12 As shown, the unfolded and extended pant-type diaper cover 100 has mutually orthogonal length, width, and thickness directions. The length direction corresponds to the up-down direction when worn. In the thickness direction, the inner side closer to the wearer's skin is also called the skin side, and the outer side opposite to it is also called the non-skin side.

[0165] The trouser-type diaper cover 100 includes main body components 110 and 120 and a size adjustment component 130. The main body components 110 and 120 have an outer trouser-shaped portion 110 and a crotch protector portion 120. The crotch protector portion 120 is located on the inner side (skin side in the thickness direction) of the outer trouser portion 110 and has a support surface (skin side) 120s for supporting an absorbent pad or diaper. Therefore, the trouser-type diaper cover 100 can be used with an absorbent pad or diaper. Furthermore, the outer trouser shape of the main body components is not limited to trouser shape (including skirt-like shape), and can also be skirt-shaped. Figure 11 The outer part 110 shown can be either shorts or trousers.

[0166] like Figure 12 As shown, the "unfolded state" of the diaper cover 100 refers to the state in which the two sides of the diaper cover 100 in the width direction are cut and unfolded into a flat surface in the front-back direction (vertical direction). When the sides of the diaper cover 100 in the width direction are detachably fastened by a fastening part, the fastening part is removed and the diaper cover is divided. When the sides are sewn together, the sides are cut off using scissors or the like.

[0167] Furthermore, the "stretched state" of the trouser-type diaper cover 100 refers to the state in which the trouser-type diaper cover 100 stretches without wrinkles. Additionally, regarding the portion made of stretchable fabric, it refers to the state in which it expands without wrinkles without being subjected to load. Regarding the portion where elastic members are installed in the fabric, it refers to the state in which wrinkles caused by the elastic members in the fabric are eliminated; that is, it refers to the state in which the fabric size becomes the same as or close to the size of the individual fabric pieces. However, in cases where the outer side portion 110 of the trouser shape is three-dimensionally sewn and has portions that cannot be unfolded flat (such as the leg openings), a portion of the outer side portion 110 may be loosened. Furthermore, in cases where the crotch protector 120 and the outer side portion 110 have different lengths in the vertical direction (length direction), and the crotch protector 120 is shorter, it is stretched in the length direction to prevent the outer side portion 110 from becoming loose. However, when the elasticity of the crotch protector 120 in the longitudinal direction is low, it is designed such that the outer portion 110 and the crotch protector 120 are extended in the longitudinal direction until the elasticity of the crotch protector 120 reaches its limit. At this time, a portion of the outer portion 110 can also be relaxed. In addition, although not shown, in the case of a skirt-type cloth diaper cover (the outer portion is skirt-shaped), the state in which the crotch protector is extended in the longitudinal direction is set as the extended state of the skirt-type diaper cover.

[0168] The cloth diaper cover with the outer side 110 in the shape of trousers or a skirt is easier to use as home wear or outerwear compared to the triangular trouser-shaped cloth diaper covers 1 and 70 of the first embodiment. That is, there is no need to wear clothing on the outside of the trouser-shaped diaper cover 100, the wearing process is simplified, and it is also easy to change the absorbent pad or diaper.

[0169] Furthermore, the main body components 110 and 120 can unfold in the front-to-back direction at the sides in the width direction. For example... Figure 11 As shown, the outer portion 110 has engaging portions 113 and 114 on both sides in the width direction, which can be detachably engaged by overlapping the front body piece 111 and the back body piece 112. Examples of engaging portions include Velcro (113) or snap fasteners (114), but there are no particular limitations.

[0170] On the other hand, when worn, the crotch protector 120 is also designed so that the front and back portions are not connected in the width direction. When unfolded, the crotch protector 120 has a shape that narrows from the center in the length direction to the inside in the width direction (so-called hourglass shape). However, the crotch protector 120 can also be configured such that the two sides in the width direction are detachable, like the outer portion 110, or it can be a shape of boxer briefs with long sides.

[0171] According to the pant-type diaper cover 100, an absorbent pad is placed on the crotch protection portion 120 (support surface 120s) in the unfolded state. The pant-type diaper cover 100 is then laid under the back of the wearer in a supine position, folded in half, and the locking portions 113 and 114 are engaged, thereby completing the wearing process. Alternatively, the pant-type diaper cover 100 can be laid under the back of the wearer in a supine position when wearing a diaper for the purpose of wearing the diaper.

[0172] The size adjustment member 130 has a fixing part 131 that is fixed to the crotch guard 120 (non-skin side) which is part of the main body member; and a mounting part 132 that can be attached and detached from the crotch guard 120 (non-skin side) which is part of the main body member. The size adjustment member 130 is sewn onto the crotch guard 120 at the fixing part 131 or glued to the crotch guard 120 with adhesive.

[0173] Additionally, in the unfolded and extended state of the outer pants-type diaper cover 100 ( Figure 12 When the two central regions (R102, R103) of the outer pants-type diaper cover 100 (cloth diaper cover) are divided into four equal parts in the length direction, the entire fixing part 131 is provided in the crotch area (R102, R103).

[0174] According to the above configuration, the user can pull the size adjustment member 130 in the length direction (the vertical direction of the wearer) and lock the mounting / removing part 132 in the non-skin side of the crotch protector 120 at a position closer to the abdomen (opposite to the fixing part 131) in the length direction. Therefore, the crotch protector 120, which is closer to the back (rear) side than the fixing part 131, can be pulled towards the abdomen, and a portion of the crotch protector 120 can be pinched between the fixing part 131 and the mounting / removing part 132. In other words, the length of the crotch protector 120 (main component) supporting the absorbent pad or diaper can be adjusted by the size adjustment member 130 in the length direction. Therefore, any slack in the crotch protector 120 that is in contact with the wearer's lower crotch area can be eliminated, allowing the absorbent pad or diaper to fit snugly against the wearer's lower crotch area, thus suppressing leakage of excrement. Furthermore, it prevents parts other than the lower crotch area from fitting excessively snugly against the wearer, improving the wearing comfort.

[0175] The size adjustment member 130 of the second embodiment may have the same features (structure, arrangement, length, etc.) as the size adjustment member 10 of the first embodiment, and detailed descriptions of the common features are omitted. For example, the size adjustment member 130 may also be provided at the center of the width direction of the outer pants-type diaper cover 100, spanning the center CL of the length direction. In addition, the attachment / removal part 132 may be provided on the ventral side compared to the fixing part 131, and a hook may be provided in the attachment / removal part 132, or the size adjustment member 130 may be elastic in the length direction. In addition, variations of the first embodiment ( Figures 9A-9C The size adjustment member 10 is applied to the outer pants-type diaper cover 100. In addition, although not shown, the snap 50 of the first embodiment (another size adjustment member) may also be provided on the crotch cover 120.

[0176] Furthermore, the outer side portion 110 can unfold in the front-to-back direction at its side portion in the width direction. Therefore, even after the outer pants-type diaper cover 100 is worn, by removing the latch 114 on the hem side to open the front panel 111 and the back panel 112, the size adjustment member 130 can be easily stretched, and the length of the crotch protector 120 can be easily adjusted. In addition, the outer side portion 110 is not limited to unfolding on both sides in the width direction; it may also be possible for only one side in the width direction to unfold. In this case, the size adjustment member 130 can still be easily stretched. However, it is not limited to the above configuration; the two sides of the outer side portion in the width direction may also be inseparably connected.

[0177] ===Third Implementation Method===

[0178] In the third embodiment, as an example of the "onesie-type clothing" according to the present invention, an example of a onesie for infants and toddlers will be given for explanation. The wearer of the onesie-type clothing is not limited to children (infants, toddlers, etc.), but can also be an adult. In the following description, the onesie-type clothing will also be referred to as a "onesie". Figure 13 This is a three-dimensional diagram showing the state of the jumpsuit 200 during its wear. Figure 14 This is an illustration of a jumpsuit (size 200) in its unfolded and stretched state. Figure 14 The diagram shows a top view of the jumpsuit 200 viewed from the skin side and a cross-sectional view of the periphery of the size adjustment component 230.

[0179] The jumpsuit 200 has an upper main body portion 210 for wearing on the upper body and a lower main body portion 220 for wearing on the lower body. The lower main body portion 220, in its unfolded and extended state, has mutually orthogonal length, width, and thickness directions. Furthermore, the lower main body portion 220 has main body members 221 and 222 and a size adjustment member 230. The main body members 221 and 222 have an outer side portion 221 in the shape of briefs and a crotch protector 222. The crotch protector 222 is located inside the outer side portion 221 (skin side in the thickness direction) and has a support surface (skin side) 222s for supporting absorbent pads or diapers. Therefore, the jumpsuit 200 can be used with absorbent pads or diapers. Furthermore, the shape of the outer side portion 221 is not limited to a briefs shape; for example, it can also be an outer pant shape or a skirt shape.

[0180] The "unfolded state" of the lower main body portion 220 is the same as that of the trouser-type diaper cover 100 in the second embodiment, in which the two sides of the lower main body portion 220 in the width direction are cut and unfolded into a flat plane in the front-back direction (vertical direction). Similarly, the "extended state" of the lower main body portion 220 is also the same as that of the trouser-type diaper cover 100 in the second embodiment, in which the lower main body portion 220 is extended without wrinkles. Although not shown, in cases where the outer part is three-dimensionally sewn in the shape of trousers, the portion that cannot be unfolded flat may loosen. Furthermore, when the length of the crotch protector portion 222 in the longitudinal direction is shorter than that of the outer part 221, it is also extended in the longitudinal direction to prevent loosening of the outer part 221. However, when the elasticity of the crotch protector portion 222 in the longitudinal direction is low, it is designed such that the outer part 221 and the crotch protector portion 222 are extended in the longitudinal direction until the elasticity of the crotch protector portion 222 reaches its limit; in this case, a portion of the outer part 221 may loosen.

[0181] The upper main body 210 is shaped like a sleeveless running vest, with a neck opening NH and a pair of arm openings AH. The side portions (underarm portions) of the upper main body 210 in the width direction can unfold in the front-to-back direction, and the front panel 211 and back panel 212 are arranged and unfolded in the vertical direction. Furthermore, each underarm portion of the front panel 211 and back panel 212 is provided with a snap-fit ​​portion 201 (e.g., a snap fastener) that allows the underarm portion to be detachably snapped shut. However, the shape of the upper main body 210 is not limited to a running vest shape; for example, it could also be a sleeved shape.

[0182] The lower main body portion 220 is integrated with the upper main body portion 210 at the rear side in the front-rear direction. Furthermore, by means of a snap-fit ​​part 202 (e.g., a fastener) that allows the lower hem of the front panel 211 of the upper main body portion 210 to be detachably engaged with the lower main body portion 220, rolling up of the upper main body portion 210 can be prevented. Additionally, the outer side portion 221 of the lower main body portion 220 can be unfolded in the front-rear direction at both sides in the width direction. In the unfolded state, the outer side portion 221 has a shape that narrows from the center in the length direction towards the inward side in the width direction (so-called hourglass shape). Furthermore, at both ends of the waist portion in the width direction of the outer side portion 221, snap-fit ​​parts 203 (e.g., Velcro) are provided that allow the front and rear waist portions to be detachably engaged.

[0183] When worn, the crotch protector 222 does not connect the front and rear portions on either side in the width direction. When unfolded, the crotch protector 222 has a shape that narrows inward from the center in the length direction towards the width direction (so-called hourglass shape).

[0184] When the user wears it, it is in the unfolded state ( Figure 14 An absorbent pad is placed on the crotch area 222 (support surface 222s) of the onesie 200, allowing the wearer to lie on the onesie 200 in a supine position. The user then passes their head through the neck opening NH of the upper main body 210 and folds the front panel 211 downwards, engaging the locking part 201. Next, the user folds the lower main body 220 in half, engaging the locking part 203, thus completing the dressing process. Alternatively, a wearer wearing a diaper can also dress the onesie 200 while lying supine in its unfolded state.

[0185] The size adjustment member 230 has a fixing part 231 fixed to the crotch guard 222 (non-skin side), which is part of the main body member; and a mounting part 232 that can be attached and detached from the crotch guard 222 (non-skin side), which is part of the main body member. The size adjustment member 230 is sewn onto the crotch guard 222 at the fixing part 231 or glued to it. In addition, when the two central regions R202 and R203 of the area RLh in the lower main body 220 in the extended and stretched state, which overlaps with the leg opening in the length direction of the main body members 221 and 222, are defined as the crotch area, the fixing part 231 is entirely provided in the crotch area (R202, R203).

[0186] Area RLh is in the wearing state ( Figure 13 The area where the portion forming the leg opening LH overlaps with the portion in the longitudinal direction. Figure 14 In the case of the jumpsuit 200, the area in the length direction where the waist portion of the main components 221 and 222 overlaps with the portion near the crotch of the waist portion where the engaging part 203 is provided is equivalent to the area RLh.

[0187] Based on the above configuration, when the user pulls the size adjustment member 230 in the length direction (the vertical direction of the wearer), the attachment / removal part 232 can be secured to the abdominal side (opposite to the fixing part 231) of the non-skin side of the crotch protector 222 in the length direction. Therefore, a state can be formed where the crotch protector 222, which is pulled towards the abdomen and is closer to the back (rear side) than the fixing part 231, is pinched between the fixing part 231 and the attachment / removal part 232. In other words, the length of the crotch protector 222 (main component) supporting the absorbent pad or diaper can be adjusted by the size adjustment member 230 in the length direction. Furthermore, it eliminates any looseness in the portion of the crotch protector 222 that contacts the wearer's crotch, allowing the absorbent pad or diaper to fit snugly against the wearer's crotch and suppressing leakage of excrement. Additionally, it prevents parts other than the crotch from fitting unnecessarily tightly against the wearer, improving the wearing comfort.

[0188] Figure 15 This is an explanatory diagram of a modified example of a jumpsuit 205 in its unfolded and elongated state. Figure 15The figure shows a top view of the jumpsuit 205 viewed from the non-skin side and a cross-sectional view of the periphery of the size adjustment member 230. Common components in the jumpsuit 200 and the modified jumpsuit 205 are indicated by the same reference numerals and are omitted from description. The lower main body portion 220 of the modified jumpsuit 205 does not have a crotch protector. Therefore, the fixing portion 231 of the size adjustment member 230 is fixed to the outer portion 221 (non-skin side), and the attaching / removing portion 232 can be attached and detached relative to the outer portion 221 (non-skin side). Furthermore, the fixing portion 231 is provided as a whole in the crotch area, specifically in the two central regions R202 and R203 of the main body member (outer portion 221) where the area RLh overlapping the leg opening in the longitudinal direction is divided into four equal parts in the longitudinal direction. In this case, the length of the outer portion 221 supporting the absorbent pad or diaper can be adjusted by the size adjustment member 230, eliminating looseness in the crotch area of ​​the outer portion 221.

[0189] In addition, even the jumpsuit 200 with crotch protection 222 ( Figure 14 Alternatively, a size adjustment member 230 can be provided on the non-skin side of the outer part 221. With the size adjustment member 230 exposed, it is easy to adjust the size using the size adjustment member 230 after wearing the jumpsuit.

[0190] The size adjustment member 230 of the third embodiment may have the same features (structure, configuration, length, etc.) as the size adjustment member 10 of the first embodiment, and detailed descriptions of the common features are omitted. For example, the mounting / removing part 232 may be provided on the abdominal side compared to the fixing part 231, a hook may be provided in the mounting / removing part 232, or the size adjustment member 230 may be elastic in the length direction. In addition, the size adjustment member 230 may also span the center CL in the length direction of the region RLh that overlaps with the leg opening in the length direction, or it may be provided in the center of the width direction of the lower main body part 220. In addition, a variation of the first embodiment may also be used on the jumpsuit 200. Figures 9A-9C The size adjustment member 10 is provided. In addition, although not shown, the snap 50 of the first embodiment (another size adjustment member) may also be provided on the crotch guard 222 or the outer side 221.

[0191] Furthermore, while an example of a onesie with both the upper main body portion 210 and the lower main body portion 220 unfolding in the front-back direction is shown here, it is not limited to this. For example, the central portion of the upper main body portion in the width direction could be detachably separated, allowing the upper main body portion to unfold in the left-right direction. Additionally, it is preferable that at least one of the upper main body portion 210 and the lower main body portion 220 can unfold in either the front-back or left-right direction, thereby improving the ease of wearing the onesie. For example, only one side portion of the lower main body portion in the width direction could unfold in the front-back direction, or the two sides of the lower main body portion in the width direction could be connected in an inseparable manner.

[0192] The purpose of the above-described embodiments is to facilitate understanding of the present invention and is not intended to limit the scope of the invention. The present invention can be modified and improved without departing from its concept, and its equivalents are naturally included.

[0193] Explanation of reference numerals in the attached figures

[0194] 1. (Belt type) Cloth diaper cover,

[0195] 2. Main components,

[0196] 3. Fastening part,

[0197] 4. Wing section,

[0198] 10. Size adjustment components

[0199] 11. Fixing part; 12. Assembly / disassembly part.

[0200] 21. Abdominal telescoping region,

[0201] 30. Leg circumference elastic section.

[0202] 41. Rear telescopic section,

[0203] 50 snap fasteners (other size adjustment components).

[0204] 51 Male fastener, 52 Female fastener

[0205] 60 Low telescopic section,

[0206] 70 (Underwear type) Cloth diaper cover,

[0207] 71 Main components,

[0208] 100 Outer pants type diaper cover (cloth diaper cover).

[0209] 113 Card joint, 114 Card joint,

[0210] 110 Outer side (main component).

[0211] 120 Crotch protector (main component).

[0212] 130 Size Adjustment Component

[0213] 131 Fixing part, 132 Assembly / disassembly part,

[0214] 200 Jumpsuit (Onesie-style clothing).

[0215] Sections 201-203, including the card section.

[0216] 205 Jumpsuit (Onesie-style clothing).

[0217] 210 upper body part,

[0218] 220 Lower main body section,

[0219] 221 Outer side (main component),

[0220] 222 Crotch protector (main component)

[0221] 230 Size adjustment component,

[0222] 231 Fixing part, 232 Assembly / disassembly part.

Claims

1. A cloth diaper cover, used in conjunction with an absorbent pad or diaper, characterized in that, The aforementioned cloth diaper cover, in its unfolded and extended state, has mutually orthogonal length, width, and thickness directions, and includes a main body component and a dimensional adjustment component for adjusting the length of the main body component in the aforementioned length directions. The aforementioned size adjustment component has a fixing part that is fixed to the aforementioned main component and a detachable part that can be attached to and detached from the aforementioned main component. When the two central areas of the cloth diaper covering the above-mentioned length direction are defined as the crotch area, the entire fixing part is located in the crotch area.

2. The cloth diaper cover as described in claim 1, characterized in that, The aforementioned fixing part is fixed to the non-skin side of the aforementioned main component. The aforementioned assembly / disassembly part can be assembled / disassembled relative to the non-skin side of the aforementioned main component.

3. The cloth diaper cover as described in claim 1 or 2, characterized in that, In its unfolded and extended state, the aforementioned size adjustment member is disposed across the center of the aforementioned cloth diaper cover in the aforementioned length direction.

4. The cloth diaper cover as described in claim 1 or 2, characterized in that, In the unfolded and extended state, the detachment part is located on the ventral side in the length direction, compared to the fixing part.

5. The cloth diaper cover as described in claim 1 or 2, characterized in that, The aforementioned size adjustment component is located at the center of the aforementioned cloth diaper cover in the aforementioned width direction.

6. The cloth diaper cover as described in claim 1 or 2, characterized in that, A hook is provided on one of the aforementioned main components and the aforementioned assembly / disassembly parts. The other of the aforementioned main component and the aforementioned assembly / disassembly part can be secured to the aforementioned hook material.

7. The cloth diaper cover as described in claim 6, characterized in that, The aforementioned hook material is provided in the aforementioned assembly / disassembly section.

8. The cloth diaper cover as described in claim 1 or 2, characterized in that, In the unfolded and extended state, the maximum length of the dimensional adjustment member in the length direction is more than 13% of the length in the length direction at the center of the width direction of the cloth diaper cover.

9. The cloth diaper cover as described in claim 1 or 2, characterized in that, In the unfolded and extended state, the maximum length of the dimensional adjustment member in the length direction is less than 25% of the length in the length direction at the center of the width direction of the cloth diaper cover.

10. The cloth diaper cover as described in claim 1 or 2, characterized in that, The aforementioned cloth diaper cover has a pair of other dimensional adjustment members for adjusting the length of the main body member in the aforementioned longitudinal direction. A pair of the aforementioned other size adjustment components are provided on both sides of the aforementioned cloth diaper cover in the aforementioned width direction.

11. The cloth diaper cover as described in claim 10, characterized in that, In the unfolded and extended state, the other size adjustment components are located on the ventral side relative to the center of the cloth diaper cover in the length direction.

12. The cloth diaper cover as described in claim 10, characterized in that, In the unfolded and extended state, the aforementioned detachable part is located on one side of the aforementioned length direction relative to the aforementioned fixed part, and the aforementioned other size adjustment members are located on the aforementioned side of the aforementioned length direction relative to the aforementioned fixed part.

13. The cloth diaper cover as described in claim 10, characterized in that, The other dimensional adjustment components mentioned above are snap fasteners. The aforementioned snap fasteners have male and female fasteners. In the unfolded and extended state, the region along the length direction from the center of the male fastener to the center of the female fastener is designated as the first region, and the region along the length direction where the fixing part is located is designated as the second region. At this time, the average curvature of the side edge of the cloth diaper in the width direction in the first region is less than the average curvature of the side edge of the cloth diaper in the width direction in the second region.

14. The cloth diaper cover as described in claim 1 or 2, characterized in that, The aforementioned size adjustment component is flexible in the aforementioned length direction. When the length of the aforementioned size adjustment member in its natural state is set to 100% in the length direction, the force required to make the aforementioned size adjustment member extend 120% in the length direction is 1N / 25mm or less.

15. The cloth diaper cover as described in claim 1 or 2, characterized in that, The aforementioned size adjustment component is flexible in the aforementioned length direction. When the length of the aforementioned size adjustment member in its natural state is set to 100% in the length direction, the force required to make the aforementioned size adjustment member extend 120% in the length direction is less than the clamping force between the aforementioned main component and the aforementioned assembly / disassembly part.

16. The cloth diaper cover as described in claim 1 or 2, characterized in that, In the aforementioned crotch area, the air permeability in the thickness direction is 10m. 3 / m 2 / minute or more and 100m 3 / m 2 / minute or less.

17. The cloth diaper cover as described in claim 1 or 2, characterized in that, The cloth diaper covers mentioned above do not have a waterproof layer.

18. The cloth diaper cover as described in claim 1 or 2, characterized in that, A pair of locking portions are provided at both ends of the width direction of at least one of the dorsal and ventral portions in the length direction.

19. A onesie having an upper body portion for wearing on the upper body and a lower body portion for wearing on the lower body, and for use with an absorbent pad or diaper, characterized in that, The aforementioned lower main body portion, in its unfolded and extended state, has mutually orthogonal length, width, and thickness directions, and includes a main body member and a dimensional adjustment member for adjusting the length of the main body member in the aforementioned length directions. The aforementioned size adjustment component has a fixing part that is fixed to the aforementioned main component and a detachable part that can be attached to and detached from the aforementioned main component. When the area of ​​the main component that overlaps with the leg opening in the length direction is divided into four equal parts in the length direction, the two central areas are designated as the crotch area, and the entire fixing part is located in the crotch area.

Images