Pet diaper

Abstract

To provide a pet diaper capable of preventing misalignment caused by the wagging motion of a pet's tail.SOLUTION: A pet diaper 1 comprises a body part 2. The body part 2 includes: a front surface sheet 3; a rear surface sheet 4; an absorbent core 11; and an elastic member 8, which is disposed to extend along the outer edge part 2c of the body part 2 and which contracts in a longitudinal direction Y. In the body part 2, a tail insertion part 6 is provided at a portion on the back side with respect to the absorbent core 11. A pair of cut parts 9, which have a prescribed length in the longitudinal direction Y and penetrate the body part 2 in a thickness direction Z, is provided in a region that is located on the inside of the elastic member 8 in a width direction X and on the abdominal side with respect to a line L2 connecting an intersection point P1, at which a line L1 extending along the elastic member 8 in the longitudinal direction Y crosses the back-side end part 2b of the body part 2, and the back-side end part P2 of the tail insertion part 6.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to pet diapers. [Background technology]

[0002] Conventionally, pet diapers for pets such as dogs and cats have been known. For example, Patent Document 1 discloses a pet diaper that has a tail insertion section (slit) provided on the back side of the absorbent core for inserting the pet's tail. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-205542 Summary of the Invention [Problem to be solved by the invention]

[0004] With such pet diapers, there is a risk that the diaper may slip off the pet's body when the pet moves (for example, wagging its tail from side to side), resulting in side leakage of excrement.

[0005] Therefore, an object of one aspect of the present disclosure is to provide a pet diaper that can prevent slippage due to the movements of a pet. [Means for solving the problem]

[0006] A pet diaper according to one aspect of the present disclosure is a pet diaper to be put on a pet, and includes a main body portion having a longitudinal direction connecting the pet's belly side to its back side and a width direction perpendicular to the longitudinal direction, the main body portion having a top sheet that is arranged in a position facing the pet's skin when the pet diaper is put on the pet, a back sheet that is arranged on the side opposite to the pet's skin when the pet diaper is put on the pet, an absorbent core that is arranged between the top sheet and the back sheet, and an elastic member that is arranged extending in the longitudinal direction along the outer edge of the main body portion in the width direction and that contracts in the longitudinal direction, A tail insertion section for inserting a pet's tail is provided in the portion dorsal to the absorbent core, and when the main body section is stretched, a pair of cut sections are provided on both sides of the center line of the main body section in the width direction, sandwiching the center line of the main body section in the width direction, in an area ventral to a second line connecting the intersection of a first line extending longitudinally along the elastic member and the dorsal end of the main body section and the dorsal end of the central part of the tail insertion section in the width direction, and more inward in the width direction than the elastic member, and each of the pair of cut sections has a predetermined length in the longitudinal direction and penetrates the main body section in the thickness direction of the main body section. [Effects of the Invention]

[0007] According to the present disclosure, a pet diaper can be provided that can prevent slippage due to pet movements. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a plan view of a pet diaper according to one embodiment, viewed from the skin side. [Figure 2] 2 is a plan view of the pet diaper of FIG. 1 as seen from the non-skin side. FIG. [Figure 3] FIG. 3 is a cross-sectional view of the pet diaper taken along line III-III in FIG. [Figure 4] FIG. 4 is a cross-sectional view of the pet diaper taken along line IV-IV in FIG. [Figure 5] FIG. 1 is a diagram showing an example of a state in which a pet diaper is worn. [Figure 6]6 is a diagram schematically illustrating a state of a part of a pet's body and a part of a pet diaper in a cross section taken along line VI-VI in FIG. 5. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] At least the following aspects 1 to 15 become clear from the description of this specification and the accompanying drawings.

[0010] (Aspect 1) A pet diaper to be worn by a pet, a main body portion having a longitudinal direction connecting the ventral side to the dorsal side of the pet and a width direction perpendicular to the longitudinal direction; The main body portion is a top sheet that is placed in a position facing the skin of the pet when the pet diaper is worn on the pet; a back sheet that is disposed on the opposite side of the pet's skin in the attached state; an absorbent core disposed between the top sheet and the back sheet; an elastic member that is arranged to extend in the longitudinal direction along an outer edge portion in the width direction of the main body portion and that contracts in the longitudinal direction, a tail insertion portion for inserting the pet's tail is provided in a portion of the main body portion on the back side of the absorbent core, In a stretched state in which the main body portion is stretched, a pair of cut portions are provided on both sides in the width direction across the center line of the main body portion in the width direction, in an area that is more ventral than a second line that connects an intersection of a first line extending in the longitudinal direction along the elastic member and the dorsal end of the main body portion, and the dorsal end of the center of the tail insertion portion in the width direction, and that is more inward than the elastic member in the width direction, A pet diaper, wherein each of the pair of cut portions has a predetermined length in the longitudinal direction and penetrates the main body portion in the thickness direction of the main body portion.

[0011] The pet diaper has a pair of cutouts with a predetermined length in the longitudinal direction, located closer to the ventral side than the second line and between the centerline of the main body and the elastic members on both sides in the width direction. This allows the cutouts to separate the top of the main body (the portion of the main body that is more inward in the width direction than the cutouts) from the side of the main body where the elastic members are located (the portion of the main body that is more outward in the width direction than the cutouts) when the pet diaper is in use (when the pet is standing on all fours). As a result, even if the top of the main body is deformed when the pet wags its tail, the force of the deformation is blocked by the cutouts, making it less likely to be transmitted to the side of the main body, and thus preventing the side of the main body from shifting out of position. Therefore, the pet diaper prevents the pet diaper from slipping out of place due to the pet's movements.

[0012] (Aspect 2) A pet diaper according to aspect 1, wherein the back end of the effective portion of the elastic member that is configured to be contractible in the longitudinal direction is located further back in the longitudinal direction than the back end of the tail insertion portion.

[0013] According to the second aspect, the elastic member allows the side surface of the main body to be effectively contracted in the longitudinal direction. As a result, the top surface of the main body, which is separated from the side surface of the main body at the cut portion as a boundary, can be suitably separated (floated) from the pet's body. In other words, the freedom of movement of the top surface of the main body, which is independent of the side surface of the main body, can be increased. This improves the cushioning function of the top surface of the main body (i.e., the function of confining deformation of the main body due to the pet's movements to the top surface of the main body inside the cut portion and suppressing its transmission to the side surface of the main body outside the cut portion).

[0014] (Aspect 3) A pet diaper of aspect 1 or 2, wherein the back end of the effective portion of the elastic member that is configured to be contractible in the longitudinal direction is located further back in the longitudinal direction than the back end of the cut portion.

[0015] According to the third aspect, the effect of the second aspect described above can be improved.

[0016] (Aspect 4) the main body portion has an upstanding elastic member that is disposed inside the elastic member in the width direction, and is configured such that both ends in the longitudinal direction are fixed and a portion between the both ends contracts in the longitudinal direction, thereby allowing the main body portion to stand up; A pet diaper according to any one of aspects 1 to 3, wherein the effective portion of the upright elastic member that is configured to be contractible in the longitudinal direction is not located in the region inward of the cut portion in the width direction within the region in which the cut portion is located in the longitudinal direction.

[0017] According to aspect 4, the upright elastic member effectively prevents side leakage of excrement, while preventing the upper surface of the main body from deforming in the longitudinal direction due to the contraction force of the upright elastic member, thereby preventing a decrease in the cushioning function of the upper surface of the main body.

[0018] (Aspect 5) A pet diaper according to aspect 4, wherein the effective portion of the upstanding elastic member is disposed on the ventral side of the cut portion in the longitudinal direction.

[0019] According to the fifth aspect, by arranging the effective portion of the upright elastic member on the ventral side of the cut portion, it is possible to realize a configuration that achieves the effects described in the fourth aspect.

[0020] (Aspect 6) A pet diaper according to aspect 4, wherein the effective portion of the upright elastic member is disposed outside the cut portion in the width direction.

[0021] According to the sixth aspect, by arranging the effective portions of the upright elastic members on the outer side of the cut portions in the width direction, it is possible to realize a configuration that provides the effects described in the fourth aspect.

[0022] (Aspect 7) The pet diaper according to any one of Aspects 1 to 6, wherein the cut portion is disposed on the rear side of the absorbent core in the longitudinal direction.

[0023] According to the seventh aspect, it is possible to prevent urine absorbed in the absorbent core from leaking through the cut portions.

[0024] (Aspect 8) A pet diaper according to aspect 7, wherein the cut portion is disposed on the dorsal side of the ventral end of the tail insertion portion in the longitudinal direction.

[0025] According to the eighth aspect, leakage of urine absorbed in the absorbent core through the cut portions can be more effectively prevented.

[0026] (Aspect 9) a pair of fastening tabs extending outward in the width direction from both ends of the main body portion in the width direction; a target portion that is disposed in a region of the main body portion that is rearward of the pair of fastening tabs and engages with the pair of fastening tabs; The pet diaper according to any one of Aspects 1 to 8, wherein the cutting portion is disposed on the ventral side of the target portion in the longitudinal direction.

[0027] According to aspect 9, by positioning the cutting portion so that it does not come into contact with the target portion that engages with the pair of fastening tabs, it is possible to prevent the cutting portion from compromising the engagement strength between the pair of fastening tabs and the target portion.

[0028] (Aspect 10) the main body portion has side sheets that form leg side gathers that are configured to be able to stand up by having both ends in the longitudinal direction fixed and a portion between the both ends contract in the longitudinal direction, 10. The pet diaper according to any one of aspects 1 to 9, wherein the cut portion is disposed so as to overlap the side sheet.

[0029] According to aspect 10, the rigidity of the portion of the main body where the cutout is provided can be increased by the amount of the side sheet. As a result, when the upper surface of the main body is deformed due to the pet's movements, the highly rigid portion where the cutout is provided can effectively absorb the deformation and effectively prevent the force of the deformation from being transmitted to the side of the main body. Furthermore, by increasing the rigidity of the portion where the cutout is provided as described above, it becomes easier to maintain the shape of the material along the cutout (the cross-sectional shape of the cutout). As a result, the portion of the main body where the cutout is provided can also be improved in fit to the pet's body.

[0030] (Aspect 11) A pet diaper according to aspect 10, wherein the side sheets have a folded-over area formed inside the cut portion in the width direction.

[0031] According to the eleventh aspect, the effect of the tenth aspect described above can be obtained even more favorably.

[0032] (Aspect 12) 12. The pet diaper according to any one of aspects 1 to 11, wherein the cut portion is provided outside a midpoint between the tail insertion portion and the elastic member in the width direction.

[0033] According to the twelfth aspect, by arranging the cut portion closer to the elastic member than to the tail insertion portion, the size of the upper surface of the main body can be secured sufficiently relative to the size of the side surfaces of the main body, making it easier for the upper surface of the main body to rise up from the pet's body, thereby improving the shock-absorbing function of the upper surface of the main body.

[0034] (Aspect 13) 13. The pet diaper according to any one of aspects 1 to 12, wherein the cutting portion has a plurality of cut portions formed at a plurality of different positions in the longitudinal direction.

[0035] According to aspect 13, by constructing the cutting portion not as a single long cut but as multiple cut portions separated in the longitudinal direction, a structure can be realized that exhibits the above-mentioned cushioning function without significantly compromising the material strength of the main body portion.

[0036] (Aspect 14) 14. The pet diaper according to any one of Aspects 1 to 13, wherein the cutting portion has a notch portion that is convex outward in the width direction.

[0037] According to the fourteenth aspect, the convex portion along the cutout portion is easily raised when the device is attached, and the upper surface portion and the side surface portion of the device are easily separated by the cutout portion. As a result, a structure can be realized in which movement of the upper surface portion of the device is not easily transmitted to the side surface portion of the device.

[0038] (Aspect 15) A pet diaper according to any one of aspects 1 to 14, wherein the back end of the tail insertion portion is located closer to the ventral side than the midpoint between the center of the main body portion and the back end of the main body portion in the longitudinal direction.

[0039] According to aspect 15, the portion of the main body that faces the pet's back when the device is worn (the upper surface of the main body) can be made sufficiently wide. As a result, the deformation force of the main body caused by the pet's tail wagging or other movements can be distributed in a balanced manner throughout the entire upper surface of the main body, and the cutting portion can effectively block the deformation force from the upper surface of the main body to the side surface of the main body.

[0040] [Embodiment] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the following description, the same or equivalent elements will be designated by the same reference numerals, and redundant description will be omitted.

[0041] The configuration of a pet diaper 1 according to one embodiment will be described with reference to FIGS. 1 to 4. FIG. 1 is a plan view of the pet diaper 1 as viewed from the skin side. FIG. 2 is a plan view of the pet diaper 1 as viewed from the non-skin side. FIGS. 1 and 2 show the pet diaper 1 in a stretched state in which the pet diaper 1 has been stretched to a state in which no wrinkles are formed. FIG. 3 is a cross-sectional view of the pet diaper 1 taken along line III-III in FIG. 1. FIG. 4 is a cross-sectional view of the pet diaper 1 taken along line IV-IV in FIG. 1. The pet diaper 1 is a diaper worn by a pet. In this specification, the term "pet" broadly includes vertebrates and invertebrates, and typically includes pet animals such as dogs, cats, rabbits, and hamsters. As an example, the pet diaper 1 is a diaper for a dog.

[0042] In this embodiment, the "skin side" refers to the side that faces the pet's skin when the pet diaper 1 is worn on the pet. The "non-skin side" refers to the side that faces away from the pet's skin when the pet diaper 1 is worn on the pet. As shown in FIG. 1, the pet diaper 1 has a longitudinal direction Y that connects the pet's belly side to its dorsal side, a width direction X that is perpendicular to the longitudinal direction Y and extends along the pet's waistline, and a thickness direction Z that is perpendicular to the longitudinal direction Y and the width direction X. As shown in FIGS. 3 and 4, the thickness direction Z is the layering direction of the materials that make up the pet diaper 1 (such as the topsheet 3, backsheet 4, and absorbent body 10, which will be described later). The straight line that passes through the center of the pet diaper 1 in the width direction X and is parallel to the longitudinal direction Y is referred to as the "center line CL."

[0043] The pet diaper 1 includes a main body portion 2 extending in the longitudinal direction Y and the width direction X. The main body portion 2 absorbs urine excreted by a pet wearing the pet diaper 1. The main body portion 2 is divided into a ventral portion 21 located on the ventral side of the pet when the pet diaper 1 is worn, a dorsal portion 22 located on the dorsal side of the pet when the pet diaper 1 is worn, and a crotch portion 23 located between the ventral portion 21 and the dorsal portion 22. The ventral portion 21, the crotch portion 23, and the dorsal portion 22 are aligned in the longitudinal direction Y from the ventral side (front) to the dorsal side (rear) of the pet. For example, if the main body portion 2 is divided into four equal parts in the longitudinal direction Y, the one region located on the ventral side corresponds to the ventral portion 21, the one region located on the dorsal side corresponds to the dorsal portion 22, and the two regions located between the ventral portion 21 and the dorsal portion 22 (i.e., the central portion of the main body portion 2 in the longitudinal direction Y) correspond to the crotch portion 23.

[0044] The main body portion 2 has a top sheet 3, a back sheet 4, a pair of side sheets 5, and an absorbent body 10.

[0045] The top sheet 3 is a liquid-permeable sheet that is placed in a position facing the pet's skin when the pet is wearing the pad. The top sheet 3 can be made of, for example, a liquid-permeable nonwoven or woven fabric, a synthetic resin film with liquid-permeable holes, or a composite sheet of these.

[0046] The back sheet 4 is a liquid-impermeable sheet that is placed on the side opposite to the pet's skin when the diaper is worn. The back sheet 4 can be made of, for example, a liquid-impermeable nonwoven fabric, a synthetic resin film, or a composite sheet of these. In this embodiment, the back sheet 4 has an exterior sheet 41 and a leak-proof sheet 42. The exterior sheet 41 is placed outside (non-skin side) of the leak-proof sheet 42 and forms the outermost surface of the main body 2. The exterior sheet 41 is made of, for example, a liquid-impermeable nonwoven fabric. The leak-proof sheet 42 is placed between the exterior sheet 41 and the absorbent body 10 (absorbent core 11) and is joined to the exterior sheet 41. The leak-proof sheet 42 is made of, for example, a liquid-impermeable synthetic resin film.

[0047] The pair of side sheets 5 are sheets for forming leg side gathers LSG, which are upstanding leak-proof gathers, in the abdominal portion 21 and the crotch portion 23. The side sheets 5 may be formed, for example, from a water-repellent or hydrophobic nonwoven fabric. As shown in FIGS. 1, 3, and 4, each side sheet 5 is arranged on both sides of the main body portion 2 in the width direction X so as to expose the central portion of the topsheet 3 in the width direction X. Each side sheet 5 extends along the longitudinal direction Y from the abdominal end 2a of the main body portion 2 to the dorsal end 2b of the main body portion 2. As shown in FIGS. 3 and 4, the outer edge of each side sheet 5 in the width direction X coincides with the outer edge of the backsheet 4, forming the outer edge portion 2c of the main body portion 2. The inner portion of each side sheet 5 in the width direction X is folded back toward the skin side. Between the folded side sheets 5, an elastic member 7 (upstanding elastic member) stretched in the longitudinal direction Y is arranged from the abdominal portion 21 to the crotch portion 23. The elastic member 7 is, for example, rubber thread.

[0048] As shown in Fig. 1, each side sheet 5 is joined (fixed) to the top sheet 3 at fixing portions R, which are surrounded by dashed lines and hatched with diagonal lines. Each fixing portion R is disposed over the entire area in the longitudinal direction Y of the main body portion 2. Each fixing portion R has a fixing portion R1 extending in the longitudinal direction Y along the outer edge of the fixing portion R in the width direction X, a rectangular fixing portion R2 formed at the ventral end of the fixing portion R in the longitudinal direction Y, and a rectangular fixing portion R3 formed at the dorsal end of the fixing portion R in the longitudinal direction Y.

[0049] The upright portions 5a are formed by the portions of the side sheets 5 between the inner end R2a of the fixed portion R2 in the longitudinal direction Y and the inner end R3a of the fixed portion R3 in the longitudinal direction Y (i.e., the portions of the side sheets 5 where the elastic members 7 are disposed and which are not joined to the topsheet 3). The upright portions 5a function as leg side gathers LSG by standing up due to contraction of the elastic members 7. More specifically, the upright portions 5a are configured such that, by having both ends in the longitudinal direction Y fixed by the fixed portions R2 and R3 and contracting in the longitudinal direction Y, they stand up with the inner end R1a of the fixed portion R1 in the width direction X as a fulcrum. In other words, the end R1a of the fixed portion R1 functions as a fulcrum for the leg side gathers LSG to stand up.

[0050] The absorbent body 10 is disposed between the topsheet 3 and the backsheet 4. As shown in FIG. 3, the absorbent body 10 comprises an absorbent core 11 and a core wrap 12 covering the upper and lower surfaces of the absorbent core 11. The absorbent core 11 is disposed so as to cover the ventral portion 21 and the crotch portion 23, but is not disposed in the dorsal portion 22. The absorbent core 11 is a member that absorbs pet urine and has liquid absorption and liquid retention properties. The absorbent core 11 is a laminate of absorbent materials containing, for example, pulp or superabsorbent polymer (SAP), or a mixture thereof. The core wrap 12 is, for example, a tissue or nonwoven fabric sheet. As an example, the absorbent core 11 is formed in a gourd shape (or an hourglass shape) when viewed in the thickness direction Z, and has a constricted shape at the center of the absorbent core 11 in the longitudinal direction Y.

[0051] As shown in FIGS. 1 and 2, the main body 2 is provided with a tail insertion portion 6 for inserting a pet's tail. As an example, the tail insertion portion 6 is composed of one cutout 6a and two cutouts 6b. The cutouts 6a and 6b penetrate the main body 2 in the thickness direction Z. The cutout 6a is provided in the center of the crotch portion 23 in the width direction X in a region on the back side of the absorbent core 11. The cutout 6a extends in the width direction X across the center line CL and has a curved (arcuate) shape that is convex toward the back side. The two cutouts 6b are provided on both sides of the center line CL, at positions closer to the cutout 6a and on the back side of the cutout 6a. The two cutouts 6b have linear shapes that are inclined with respect to the longitudinal direction Y so that the distance between the two cutouts 6b increases from the ventral side to the back side.

[0052] By pushing the portion of the main body 2 between the ends of the incision 6a in the width direction X and closer to the ventral side than the incision 6a toward the non-skin side, a substantially semicircular opening for inserting the pet's tail is formed. Furthermore, by tearing the portion of the main body 2 between the incision 6a and the two incisions 6b, the incision 6a and the two incisions 6b can be connected. In this case, as shown in FIG. 2, it is possible to form an opening having an area A larger than the opening formed by the incision 6a. As described above, in this embodiment, the tail insertion portion 6 is configured so that the opening size can be adjusted (enlarged) by connecting the two incisions 6b to the incision 6a as needed. Note that the shape and size of the tail insertion portion 6 are not limited to those of this embodiment. For example, the incision 6b may be omitted if size adjustment is not necessary. Furthermore, the tail insertion portion 6 may be formed by an opening having a predetermined area instead of an incision, or by a combination of an opening and an incision.

[0053] A pair of flap portions F1 protruding outward in the width direction X are formed on both sides of the ventral portion 21 in the width direction X. Similarly, a pair of flap portions F2 protruding outward in the width direction X are formed on both sides of the dorsal portion 22 in the width direction X. A pair of fastening tabs 50 are provided on the pair of flap portions F1. A target portion 53 is provided in the region between the pair of flap portions F2 in the dorsal portion 22.

[0054] Each fastening tab 50 extends outward in the width direction X from both ends (ends F1a in the width direction X of the flap portion F1) of the main body portion 2 (flap portion F1). Each fastening tab 50 has a rectangular shape that is long in the width direction X and is disposed near the end 2a on the ventral side of the main body portion 2. Each fastening tab 50 has a base sheet 51 joined to the flap portion F1 and an engaging portion 52 provided on the skin-facing surface of the base sheet 51. A portion of the base sheet 51 is sandwiched, for example, between the side sheet 5 and the back sheet 4. The engaging portion 52 is, for example, a hook-and-loop fastener (for example, a plurality of hook-shaped members) configured to be engageable with a target portion 53.

[0055] The target portion 53 has a rectangular shape that is long in the width direction X, and is disposed on the non-skin side surface of the back sheet 4 (exterior sheet 41) near the back end 2b of the main body portion 2. As shown in Fig. 5, in the attached state, the engagement portions 52 of the pair of fastening tabs 50 engage with the target portion 53. Fig. 5 shows the state in which the pet P is standing in the attached state.

[0056] The main body 2 has a pair of elastic members 8 that are arranged to extend in the longitudinal direction Y along the outer edge 2c of the main body 2 in the width direction X (in this embodiment, the portion of the outer edge 2c located in the crotch portion 23 where the flap portions F1, 32 are not provided), and that contract in the longitudinal direction Y. Each elastic member 8 is, for example, rubber thread similar to the elastic member 7. In this embodiment, as shown in FIG. 3, each elastic member 8 is arranged between the top sheet 3 and the back sheet 4 (leak-proof sheet 42). As shown in FIG. 5, when the diaper is worn, the pair of elastic members 8 contract in the longitudinal direction Y, causing the outer edge 2c of the main body 2 to function as leg gathers that fit around the legs of the pet P.

[0057] 1, when the main body 2 is stretched, the intersection of each line L1 (first line) extending in the longitudinal direction Y along each elastic member 8 with the dorsal end 2b of the main body 2 is denoted as P1, and the dorsal end of the central portion of the tail insertion portion 6 in the width direction X is denoted as P2. End P2 of the tail insertion portion 6 is the dorsal end of the largest opening formed by the tail insertion portion 6. In this embodiment, region A shown in FIG. 2 is the largest opening that can be formed by the tail insertion portion 6 (i.e., the notch 6a and the two notches 6b). Therefore, end P2 corresponds to the dorsal end of the central portion of region A in the width direction X. Note that if the tail insertion portion 6 is not a notch as in this embodiment but an opening having a predetermined area that is originally formed in the main body 2, end P2 corresponds to the dorsal end of the central portion of the opening in the width direction X. Moreover, a line connecting each intersection point P1 and an end P2 is represented as a line L2 (second line).

[0058] When line L2 is defined as above, in this embodiment, cut portions 9 are provided in an area that is more ventral than line L2 (upper side in FIG. 1) and more inward than the elastic member 8 in the width direction X (in this embodiment, the area located between the tail insertion portion 6 and the elastic member 8 in the width direction X). In this embodiment, cut portions 9 are provided on both sides of the center line CL in the width direction X. Each cut portion 9 has a plurality of cut portions 91 (four on each side in this embodiment) that have a predetermined length in the longitudinal direction Y. In each cut portion 9, the plurality of cut portions 91 are arranged in the longitudinal direction Y. Each cut portion 91 penetrates through the main body 2 in the thickness direction Z of the main body 2. In this embodiment, four sets of pairs of cutting portions 9 (notches 91) are arranged in the longitudinal direction Y on either side of the center line CL of the main body 2 in the width direction X, but in order to obtain the effects of the pet diaper 1 described below, it is sufficient that the main body 2 has at least one set of pairs of cutting portions 9 (i.e., a total of two cutting portions 9 (notches 91)).

[0059] Next, the effects of the above-described pet diaper 1 will be described. In the pet diaper 1, a pair of cutouts 9 (four cutouts 91 extending in the longitudinal direction Y on each of the left and right sides in this embodiment) having a predetermined length in the longitudinal direction Y is provided in an area that is on the ventral side of the line L2 and between the center line CL of the main body portion 2 in the width direction X and the elastic members 8 on both sides in the width direction X. As a result, as shown in FIGS. 2, 5, and 6, when the pet diaper 1 is in use (when the pet P is standing on all fours as shown in FIG. 5), the cutouts 9 can separate the main body top surface portion 2d (the portion of the main body portion 2 that is more inward in the width direction X than the cutouts 9) where the tail insertion portion 6 is located from the main body side surface portion 2e (the portion of the main body portion 2 that is more outward in the width direction X than the cutouts 9) where the elastic members 8 are located. As a result, even if the upper surface portion 2d of the main body is deformed, for example, when the pet P wags its tail, the force of the deformation is prevented from being transmitted to the side surface portion 2e by the cutout portion 9, thereby preventing the side surface portion 2e from shifting out of position. For example, as shown in FIG. 6, when a certain amount of play (gap S) is formed between the upper surface portion 2d of the main body and the pet P, even if the upper surface portion 2d of the main body shifts slightly left and right (direction D in FIG. 6) in conjunction with the movement of the pet P's tail, the upper surface portion 2d can absorb the movement, thereby preventing the side surface portion 2e from shifting out of position. Therefore, the pet diaper 1 can prevent slippage of the pet diaper 1 when worn due to the pet P's tail wagging, for example. For example, if the portion of the side surface portion 2e where the elastic member 8 is provided shifts out of position, there is a risk of excrement leakage, but the pet diaper 1 can effectively prevent such leakage by preventing the side surface portion 2e from shifting out of position.

[0060] The dorsal end of the active portion of the elastic member 8 that is configured to be contractible in the longitudinal direction Y is located dorsally in the longitudinal direction Y relative to the dorsal end of the tail insertion portion 6 (in this embodiment, end P2 shown in FIGS. 1 and 2). In this embodiment, the ventral end of the elastic member 8 is located at the ventral end 2a of the main body portion 2, and the dorsal end of the elastic member 8 is located at the dorsal end 2b of the main body portion 2. Therefore, the active portion of the elastic member 8 coincides with the entire portion of the elastic member 8 shown in FIGS. 1 and 2 (i.e., the portion from end 2a to end 2b). According to the above configuration, the elastic member 8 can effectively contract the main body side portion 2e in the longitudinal direction Y. As a result, the main body upper surface portion 2d that is separated from the main body side portion 2e at the cut portion 9 can be suitably separated (floated) from the body of the pet P. That is, by having the elastic member 8 extend in the longitudinal direction Y at least up to the position where the tail insertion portion 6 is disposed, the main body side portion 2e can be effectively contracted, and as a result, a gap S can be suitably created between the main body top portion 2d and the body of the pet P, as shown in Fig. 6. As a result, the degree of freedom of movement of the main body top portion 2d independent of the main body side portion 2e can be increased. This improves the shock-absorbing function of the main body top portion 2d (i.e., the function of confining deformation of the main body 2 caused by movements of the pet P, such as tail wagging, to the main body top portion 2d inside the cut portion 9 and suppressing transmission of the deformation to the main body side portion 2e outside the cut portion 9).

[0061] Furthermore, in this embodiment, the rear end portion (i.e., end portion 2b) of the effective portion of the elastic member 8 is located rearward in the longitudinal direction Y relative to the rear end portion of the cut portion 9 (in this embodiment, the rear end portion 9a of the cut portion 91 located furthest rearward as shown in FIG. 1). In other words, by arranging at least the elastic member 8 so as to overlap the entire cut portion 9 in the width direction X, the main body side portion 2e can be more effectively contracted. This makes it possible to more effectively generate the above-mentioned gap S, further increasing the degree of freedom of movement of the main body top surface portion 2d. As a result, the cushioning function of the main body top surface portion 2d can be more effectively improved.

[0062] The main body portion 2 has an elastic member 7 that is disposed inside the elastic member 8 in the width direction X, and has both ends in the longitudinal direction Y fixed by ends R2a, R3a, and configured to be able to stand up by contracting the portion between the both ends in the longitudinal direction Y. Furthermore, the effective portion of the elastic member 7 that is configured to be able to contract in the longitudinal direction Y (i.e., the portion between ends R2a and R3a) is not disposed in a region of the main body upper surface portion 2d where the cut portion 9 is disposed in the longitudinal direction Y that is more inward than the cut portion 9 in the width direction X (i.e., the region of the main body upper surface portion 2d that overlaps with and is more inward than the cut portion 9 in the width direction X). With the above configuration, the leg side gathers LSG formed by the elastic member 7 suitably prevent side leakage of body exudates, and it is possible to prevent a decrease in the cushioning function of the main body upper surface portion 2d that would be caused by deformation of the main body upper surface portion 2d in the longitudinal direction Y due to the contractile force of the elastic member 7.

[0063] In this embodiment, the effective portion of the elastic member 7 (the portion from end R2a to end R3a) is disposed on the ventral side of the cut portion 9 (the ventral-most notch 91) in the longitudinal direction Y. That is, in this embodiment, by disposing the effective portion of the elastic member 7 on the ventral side of the cut portion 9, a configuration for achieving the above-described effect (that is, a configuration in which the elastic member 7 is not disposed on the main body upper surface portion 2d) is realized.

[0064] As another configuration for realizing the above configuration (a configuration in which the elastic member 7 is not arranged on the main body upper surface portion 2d), the effective portion of the elastic member 7 may be arranged outside the cut portion 9 in the width direction X (i.e., on the main body side surface portion 2e). In this case, the above configuration (a configuration in which the elastic member 7 is not arranged on the main body upper surface portion 2d) can be realized by arranging the elastic member 7 outside the cut portion 9 while providing the effective portion of the elastic member 7 so that it extends to a position overlapping the cut portion 9 in the width direction X.

[0065] The cut portion 9 is positioned on the back side of the absorbent core 11 in the longitudinal direction Y. In other words, the cut portion 9 does not include a portion that overlaps with the absorbent core 11. According to the above configuration, it is possible to prevent urine absorbed in the absorbent core 11 from leaking through the cut surface of the cut portion 9.

[0066] Furthermore, the cut portion 9 is positioned dorsally relative to the ventral end of the tail insertion portion 6 (the ventral end of region A in Figure 2) in the longitudinal direction Y. In other words, the cut portion 9 does not include a portion located ventrally relative to the ventral end of the tail insertion portion 6. This configuration makes it possible to more effectively prevent urine absorbed in the absorbent core 11 from leaking through the cut surface of the cut portion 9.

[0067] The pet diaper 1 has a pair of fastening tabs 50 extending outward in the width direction X from both ends of the main body 2 in the width direction X, and a target portion 53 arranged in a region of the main body 2 on the dorsal side of the pair of fastening tabs 50 and engaging with the pair of fastening tabs 50. As shown in FIG. 2 , the cutting portion 9 is arranged on the ventral side of the target portion 53 in the longitudinal direction Y. In other words, the cutting portion 9 does not include a portion that overlaps with the target portion 53. According to the above configuration, by arranging the cutting portion 9 so that it does not come into contact with the target portion 53 that engages with the pair of fastening tabs 50, it is possible to prevent the cutting portion 9 from impairing the engagement strength between the pair of fastening tabs 50 and the target portion 53.

[0068] The main body portion 2 has side sheets 5 that form leg side gathers LSG. As shown in FIGS. 1 and 4, the cut portions 9 are arranged to overlap the side sheets 5. This configuration allows the rigidity of the portion of the main body portion 2 where the cut portions 9 are provided to be increased by the amount of the side sheets 5. As a result, when the main body upper surface portion 2d is deformed due to a pet's tail wagging or other movements, the highly rigid portion where the cut portions 9 are provided (i.e., the portion between the main body upper surface portion 2d and the main body side surface portion 2e) can effectively absorb the deformation and effectively prevent the force of the deformation from being transmitted to the main body side surface portion 2e. Furthermore, the increased rigidity of the portion where the cut portions 9 are provided makes it easier to maintain the shape of the material along the cut portions 9 (the cross-sectional shape of the cut portions 9). As a result, the portion of the main body portion 2 where the cut portions 9 are provided can also be improved in fit to the pet's body.

[0069] 4, a region 5b is formed in which the side sheet 5 is folded back to form a double layer inside the cut portion 9 in the width direction X (i.e., near the cut portion 9 on the main body upper surface portion 2d). This configuration makes it possible to more effectively obtain the above-mentioned effects. That is, the double layer of the side sheet 5 forms a region 5b that is more rigid than other portions, thereby more effectively preventing the deformation force of the main body upper surface portion 2d from being transmitted to the main body side surface portion 2e.

[0070] As shown in FIG. 1, the cutoff portion 9 is located outside the midpoint between the tail insertion portion 6 and the elastic member 8 in the width direction X. In other words, if we define a line parallel to the Y-axis direction as a middle line CL1 that passes through the outer end of the tail insertion portion 6 in the width direction X, passes midpoint between a line L3 parallel to the longitudinal direction Y and a line (line L1) along the elastic member 8, and the line L3 is parallel to the longitudinal direction Y, the cutoff portion 9 is located outside the middle line CL1 in the width direction X (between the middle line CL1 and line L1). By positioning the cutoff portion 9 closer to the elastic member 8 than to the tail insertion portion 6 with respect to the middle line CL1, the size of the main body upper surface portion 2d can be ensured to be sufficient relative to the size of the main body side surface portion 2e, making it easier for the main body upper surface portion 2d to rise up from the body of the pet P. This improves the cushioning function of the main body upper surface portion 2d described above.

[0071] 1 and 2, the cutting portion 9 has a plurality of notches 91 formed at a plurality of different positions in the longitudinal direction Y. In this embodiment, as shown in FIG. 1, on each of the left and right sides, the cutting portion 9 has four notches 91 lined up in a row in the longitudinal direction Y. According to the above configuration, by configuring the cutting portion 9 not with a single long notch but with a plurality of separated notches 91 in the longitudinal direction Y, it is possible to realize a structure that exhibits the above-mentioned cushioning function without significantly compromising the material strength of the main body portion 2.

[0072] As shown in Figures 1 and 2, the cutting section 9 has a notch 91 that is convex outward in the width direction X. With this configuration, as shown in Figures 5 and 6, when the pet diaper 1 is worn, the convex portion along the notch 91 tends to stand up, making it easier for the main body top surface 2d and the main body side surface 2e to be separated by the notch 91. As a result, a structure can be preferably achieved in which movement of the main body top surface 2d is less likely to be transmitted to the main body side surface 2e. Furthermore, the standing up of the convex portion forms a ventilation opening along the notch 91, thereby improving the breathability of the pet diaper 1.

[0073] 1 and 2, in this embodiment, the dorsal end of the tail insertion portion 6 (in this embodiment, the dorsal end of the cutout 6b) is located more ventrally than the midpoint between the center of the main body 2 in the longitudinal direction Y (in this embodiment, the center of the crotch portion 23 in the longitudinal direction Y) and the dorsal end 2b of the main body 2 (in this embodiment, the boundary between the dorsal portion 22 and the crotch portion 23). With this configuration, the portion of the main body 2 that faces the pet's back when worn (the main body upper surface portion 2d) can be made sufficiently wide. As a result, the deformation force of the main body 2 caused by the pet's tail wagging or the like can be distributed in a balanced manner over the entire main body upper surface portion 2d, and the deformation force directed from the main body upper surface portion 2d to the main body side surface portion 2e can be effectively blocked by the cutout portion 9.

[0074] [Variations] Although the embodiments of the present disclosure have been described above, the present disclosure is not limited to the above embodiments. The materials and shapes of each component are not limited to those described above, and various materials and shapes can be used. Furthermore, some components included in the configurations of the above embodiments may be modified or omitted, or other components may be added.

[0075] For example, the shape and arrangement of the cutting portion 9 are not limited to those in the above embodiment. In the above embodiment, the cutting portion 9 is provided on both the left and right sides of the tail insertion portion 6, but the cutting portion 9 may be provided on only one side of the tail insertion portion 6. The cutting portion 9 may also be formed by a single cut or opening. The cut portion 91 may have a shape other than a convex shape extending outward in the width direction X. For example, the cut portion 91 may be formed in a straight line along the longitudinal direction Y, or may be formed in a convex shape extending inward in the width direction X. [Explanation of symbols]

[0076] 1...pet diaper, 2...main body portion, 2c...outer edge portion, 3...surface sheet, 4...back sheet, 5...side sheet, 6...tail insertion portion, 7...elastic member (standing elastic member), 8...elastic member, 9...cutting portion, 11...absorbent core, 50...fastening tab, 53...target portion, L1...line (first line), L2...line (second line), LSG...leg side gather, P...pet, P1...intersection, P2...end portion.

Claims

1. A pet diaper to be worn by a pet, a main body portion having a longitudinal direction connecting the ventral side to the dorsal side of the pet and a width direction perpendicular to the longitudinal direction; The main body portion is a top sheet that is placed in a position facing the skin of the pet when the pet diaper is worn on the pet; a back sheet that is disposed on the opposite side of the pet's skin in the attached state; an absorbent core disposed between the top sheet and the back sheet; an elastic member that is arranged to extend in the longitudinal direction along an outer edge portion in the width direction of the main body portion and that contracts in the longitudinal direction, a tail insertion portion for inserting the pet's tail is provided in a portion of the main body portion on the back side of the absorbent core, In a stretched state in which the main body portion is stretched, a pair of cut portions are provided on both sides in the width direction across the center line of the main body portion in the width direction, in an area that is more ventral than a second line that connects an intersection of a first line extending in the longitudinal direction along the elastic member and the dorsal end of the main body portion, and the dorsal end of the center of the tail insertion portion in the width direction, and that is more inward than the elastic member in the width direction, A pet diaper, wherein each of the pair of cut portions has a predetermined length in the longitudinal direction and penetrates the main body portion in the thickness direction of the main body portion.

2. a back end of an effective portion of the elastic member that is configured to be contractible in the longitudinal direction is located dorsally relative to the back end of the tail insertion portion in the longitudinal direction; The pet diaper according to claim 1.

3. The back end of the effective portion of the elastic member that is configured to be contractible in the longitudinal direction is located on the back side of the back end of the cut portion in the longitudinal direction. The pet diaper according to claim 1.

4. the main body portion has an upstanding elastic member that is disposed inside the elastic member in the width direction, and is configured such that both ends in the longitudinal direction are fixed and a portion between the both ends contracts in the longitudinal direction, thereby allowing the main body portion to stand up; The effective portion of the upright elastic member that is configured to be contractible in the longitudinal direction is not disposed in a region inward of the cut portion in the width direction within the region in which the cut portion is disposed in the longitudinal direction. The pet diaper according to claim 1.

5. The effective portion of the upright elastic member is disposed on the ventral side of the cut portion in the longitudinal direction. The pet diaper according to claim 4.

6. The effective portion of the upright elastic member is disposed outside the cut portion in the width direction. The pet diaper according to claim 4.

7. The cut portion is disposed on the back side of the absorbent core in the longitudinal direction. The pet diaper according to claim 1.

8. The cutting portion is disposed dorsally relative to the ventral end of the tail insertion portion in the longitudinal direction. The pet diaper according to claim 7.

9. a pair of fastening tabs extending outward in the width direction from both ends of the main body portion in the width direction; a target portion that is disposed in a region of the main body portion that is rearward of the pair of fastening tabs and engages with the pair of fastening tabs; The cutting portion is disposed on the ventral side of the target portion in the longitudinal direction. The pet diaper according to claim 1.

10. the main body portion has side sheets that form leg side gathers that are configured to be able to stand up by having both ends in the longitudinal direction fixed and a portion between the both ends contract in the longitudinal direction, The cut portion is arranged to overlap the side sheet. The pet diaper according to claim 1.

11. A region where the side sheet is folded back so as to be doubled is formed on the inner side of the cut portion in the width direction. The pet diaper according to claim 10.

12. The cut portion is provided outside a midpoint between the tail insertion portion and the elastic member in the width direction. The pet diaper according to claim 1.

13. The cutting portion has a plurality of notches formed at a plurality of different positions in the longitudinal direction. The pet diaper according to claim 1.

14. The cutting portion has a notch portion having a shape that is convex outward in the width direction. The pet diaper according to claim 1.

15. The dorsal end of the tail insertion portion is located on the ventral side of the intermediate position between the center of the main body portion and the dorsal end of the main body portion in the longitudinal direction. The pet diaper according to claim 1.

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