WO2018235336A1

WO2018235336A1 - Absorptive sheet for use in animal toilet, and animal toilet

Info

Publication number: WO2018235336A1
Application number: PCT/JP2018/006262
Authority: WO
Inventors: 顕治廣嶋; 松尾　剛之
Original assignee: ユニ・チャーム株式会社
Priority date: 2017-06-19
Filing date: 2018-02-21
Publication date: 2018-12-27
Also published as: JP2019000075A; JP6807807B2

Abstract

The present disclosure provides: an adsorptive sheet that is for use in an animal toilet and that readily suppresses leakage of the urine of an animal therefrom, does not readily contaminate the animal toilet, and readily reduces the time and effort spent cleaning the animal toilet by the owner of the animal, even after the animal has urinated multiple times; and an animal toilet. The present disclosure is an absorptive sheet (1) for an animal toilet (3). The animal toilet (3) comprises a mounting part (7) for mounting the absorptive sheet (1). The mounting part (7) has: a center part (17) on which the absorptive sheet (1) is mounted in a planar direction and in which an animal urinates; an upright leak-preventing wall part (21) that surrounds the center part (17); and an extending part (19) that extends outside the leak-preventing wall part (21). The leak-preventing wall part (21) has: a peak part (21b) that is taller than the center part (17); and an inside base part (21a) and an outside base part (21c) from which the leak-preventing wall part rises. When being mounted on the mounting part (7), the absorptive sheet (1) covers at least a portion of the leak-preventing wall part (21) and the extending part (19).

Description

Absorbent sheet used for animal toilet and toilet for the animal

The present disclosure relates to an absorbent sheet used for animal litter and an animal litter.

A liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent sheet provided with an absorbent disposed therebetween are widely used to treat animal excrement and the like reared indoors. Are known. There is also known a toilet for animals provided with an absorbent sheet and a placement unit for placing the absorbent sheet.

For example, a conventional animal litter box disclosed in Patent Document 1 below is a sheet that can be placed on the surface of an absorbent sheet, and a cover portion that covers the surface of the absorbent sheet, and the surface of the absorbent sheet The absorbent sheet fixing aid has a plurality of clearances where the width through which is exposed is exposed.
The invention disclosed in Patent Document 1 includes, in the planar direction, a mounting portion for mounting the absorbent sheet and a projecting portion arranged to surround the mounting portion. The protruding portion is configured to be lower than the placement portion in the thickness direction, and is disposed to be fitted with a cover portion that covers the outer edge of the absorbent sheet from above.

In addition, the conventional pet sheet disclosed in Patent Document 2 below has a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorber interposed between the top sheet and the back sheet. And in the pet sheet in which the front sheet and the back sheet are joined at the side end, flaps rising from the sheet surface are formed parallel to the sheet edge at at least one pair of opposite side ends facing each other. It is a pet sheet characterized by being.
According to the invention disclosed in Patent Document 2 below, a flap portion composed of a top sheet and a back sheet at the edge portion is for the purpose of making it difficult for animal urine to leak from the edge portion of the sheet to the outside of the sheet. It is formed to stand up from.

JP 2007-14321 A Japanese Patent Application Laid-Open No. 10-313721

Generally, when an animal kept indoors, such as a dog, urinates in the animal litter box, urine excreted from the animal is drawn from the liquid-permeable surface sheet of the absorbent sheet into the absorbent sheet. The absorbent sheet absorbs the absorbent sheet by being held by an absorbent between the top sheet and the liquid-impermeable back sheet. However, particularly when the animal urinates multiple times, the urine retained in the absorbent increases and the urine is less likely to be drawn into the absorbent sheet, whereby the urine before drawn into the absorbent sheet is It may flow on the surface sheet of the absorbent sheet and spill out of the absorbent sheet (hereinafter referred to as "passage leakage"). As a result, the leaked urine contaminates the animal litter box, and it may take time for the breeder of the animal to clean the animal litter box.

In particular, when the animal is a dog, when the dog urinates multiple times in the animal litter box in the animal litter box, the dog tends to be reluctant to urinate again at the part where it urinated once. Findings on Therefore, when the dog urinates multiple times, when the urination area in the urination area for the dog to urinate in the toilet increases as the urination frequency increases, the dog urinates at the outer edge of the urination area and transmits Leaked urine is more likely to leak out of the absorbent sheet.
Under such circumstances, when the animal urinates in the animal litter box described in Patent Document 1, the toilet is not particularly intended to suppress leakage of animal urine out of the absorbent sheet, so in particular When the animal urinates multiple times, there is a risk that the urine of the animal may leak out of the absorbent sheet.

Further, in order to make it difficult for the urine leaked out as described above to leak out of the absorbent sheet, when the pet sheet is configured as disclosed in the above-mentioned Patent Document 2, the animal is described in the above-mentioned Patent Document 2 When urinating on a pet sheet, the flap portion is stepped on when the animal enters the pet sheet and is easily crushed, so that animal urine does not easily leak from the edge of the sheet to the outside of the absorbent sheet As a result, the urine of the animal may still leak out of the absorbent sheet.

Therefore, according to the present disclosure, even if the animal urinates multiple times, it is easy to suppress the urine of the animal from leaking out of the absorbent sheet, it is difficult to contaminate the toilet for the animal, and the breeder of the animal It is an object of the present invention to provide an absorbent sheet used for animal litter and an animal litter, which can easily reduce the time and effort required to clean the toilet.

The absorbent sheet used for the animal litter box according to the present disclosure is
An absorbent sheet for use in a toilet for animals having a thickness direction and a plane direction perpendicular to the thickness direction,
The animal litter box includes a placement unit for placing the absorbent sheet,
The placement portion includes: a central portion on which the absorbent sheet is placed to be an animal's urination region in the planar direction; and a leak-barrier portion which is erected to surround the central portion; And an extending portion extending to the outside of the leakage preventing wall portion,
The leak-proof wall has a top portion higher than the height of the central portion, and an inner base and an outer base serving as a base point of rising of the leak-proof wall.
The absorbent sheet is configured to cover the leakproof wall portion and at least a part of the extension portion when the absorbent sheet is placed on the placement portion.
It is characterized by

According to the present disclosure, even if the animal urinates multiple times, it is easy to suppress that the urine of the animal leaks out of the absorbent sheet, it is difficult to contaminate the toilet for the animal, and the breeder of the animal It is possible to provide an absorbent sheet used for animal litter and an animal litter that is easy to reduce the trouble of cleaning the toilet.

FIG. 1 is a plan view showing a configuration example of the absorbent sheet 1 used in the animal litter box 3 and the animal litter box 3 according to the first embodiment of the present disclosure. FIG. 2 is an exploded perspective view showing the configuration of the animal litter box 3 of FIG. FIG. 3 is an end view along III-III of the animal litter box 3 of FIG. FIG. 4: is a schematic diagram which shows the flow of the urine U in the absorbent sheet 1 corresponding to the principal part enlarged part of FIG. FIG. 5 is a perspective view of the holding member 11 of the animal litter box 3 of FIG. 1 as viewed from the back side. FIG. 6 is a view showing an arrangement mode of the absorbent sheet 1 according to the second embodiment of the present disclosure, corresponding to FIG. 3 according to the first embodiment. FIG. 7 is a perspective view showing a configuration example of the animal litter box 3 according to the third embodiment of the present disclosure to which the absorbent sheet 1 according to the present disclosure can be applied. FIG. 8 is a schematic view showing the flow of urine U 'in the absorbent sheet 1' corresponding to the main part enlarged portion of the conventional animal litter box 3 '.

[Aspect 1]
An absorbent sheet for use in a toilet for animals having a thickness direction and a plane direction perpendicular to the thickness direction,
The animal litter box includes a placement unit for placing the absorbent sheet,
The placement portion includes: a central portion on which the absorbent sheet is placed to be an animal's urination region in the planar direction; and a leak-barrier portion which is erected to surround the central portion; And an extending portion extending to the outside of the leakage preventing wall portion,
The leak-proof wall has a top portion higher than the height of the central portion, and an inner base and an outer base serving as a base point of rising of the leak-proof wall.
The absorbent sheet, wherein the absorbent sheet is configured to cover the leakproof wall and at least a part of the extension when the absorbent sheet is placed on the placement section.

When the absorbent sheet of this aspect is used for the animal litter box, the animal litter box includes the leak-proof wall portion, and when the absorbent sheet is placed on the storage portion, the leak-proof member Since it is comprised so that a wall may be covered, the urine before being drawn in in the said absorptive sheet by the animal urinating in the toilet for animals several times and becoming difficult to draw in urine in the said absorptive sheet However, even if it leaks along the surface sheet of the absorbent sheet, the leaked urine is retained at the portion of the absorbent sheet corresponding to the leakproof wall portion and leaks out of the absorbent sheet. It is easy to control things. In addition, even if the urine that has leaked can not be blocked by the portion corresponding to the leakage preventing wall portion in the absorbent sheet, the absorbent sheet of this aspect is at least a part of the extended portion. Since it is comprised so that it may cover, urine is hold | maintained in this absorbent sheet by the outer edge part of the absorbent sheet extended in the part corresponding to the said extension part, urine leaking out of the said absorbent sheet, As a result, it is easy to suppress that urine leaks into the animal litter box and the toilet is contaminated.
From the above, even if the animal urinates multiple times, the absorbent sheet of the present embodiment can easily prevent the urine of the animal from leaking out of the absorbent sheet, and as a result, the animal toilet is not easily contaminated. It is easy to reduce the trouble of cleaning the animal litter box for the breeder.

[Aspect 2]
The absorbent sheet includes a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed therebetween.
The absorbent body is disposed at a position overlapping the central portion in the thickness direction when the absorbent sheet is placed on the placement portion, and an outer edge of the absorbent body in the planar direction is the absorbent body. The absorbent sheet according to aspect 1, which is disposed so as to be located between the portion corresponding to the top and the portion corresponding to the inner base in a planar direction.

When the animal urinates multiple times, the urine retained by the absorber increases, and even if the urine is drawn into the absorbent sheet, the urine moves within the absorbent sheet without being retained by the absorber. It may exude from the surface sheet or may exude from between the surface sheet and the back sheet (hereinafter referred to as "bleed leakage"). However, in the absorbent sheet of the present aspect, when the absorbent sheet is placed on the placement portion, the outer edge in the planar direction of the absorber corresponds to the portion in the planar direction corresponding to the apex in the planar direction and the inner side Since urine is disposed between the portion corresponding to the base, and more specifically, the outer edge is positioned on or inward of the portion corresponding to the top, urine is prevented in the absorbent sheet. Bleeding is unlikely to occur at a portion located outside in the planar direction than the portion corresponding to the top of the leaked wall, and even if the animal urinates multiple times, it is more assured that the urine of the animal leaks out of the absorbent sheet. It can be suppressed. Further, the outer edge in the planar direction of the absorber is between the portion corresponding to the top and the portion corresponding to the inner base, more specifically, the outer edge corresponds to the inner base in the planar direction. Or, since it is arranged to be located outside the portion concerned, even if the animal urinates multiple times, it is difficult for urine to be accumulated on the surface sheet at a portion corresponding to the boundary portion between the leakproof wall portion and the central portion Since it is easy to prevent the urine of the animal from running and leaking on the surface of the absorbent sheet, even if the animal urinates several times, it is more reliably suppressed that the urine of the animal leaks out of the absorbent sheet. easy.

[Aspect 3]
The absorbent sheet includes a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed therebetween.
The absorbent body is disposed at a position overlapping the central portion in the thickness direction when the absorbent sheet is placed on the placement portion, and an outer edge of the absorbent body in the planar direction is the absorbent body. The absorbent sheet according to aspect 1, which is arranged to be positioned inside the portion corresponding to the inner base in the planar direction.

The absorbent sheet of this aspect is disposed such that the outer edge in the planar direction of the absorbent body is positioned inward of the portion corresponding to the inner base in the planar direction when the absorbent sheet is placed on the placement portion. It is done. Therefore, in the absorbent sheet, the portion corresponding to the inner base or the portion located outside the portion, that is, the portion corresponding to the leakproof wall does not have the absorber, and the absorber The thickness of the absorbent sheet is reduced compared to the portion where there is a portion, and the absorbent sheet is likely to be disposed along the leakproof wall portion at the portion corresponding to the leakproof wall portion. As a result, even if the animal urinates multiple times in the animal litter box and urine leaks on the surface sheet of the absorbent sheet, the leaked urine is the leakproof wall portion of the absorbent sheet. It is blocked by the corresponding part, and it is easy to more reliably suppress leakage to the outside of the absorbent sheet.

[Aspect 4]
The animal litter box has a frame having an inner peripheral edge and an outer peripheral edge and covering the leakproof wall.
3. The frame according to any one of the embodiments 1 to 3, wherein the inner peripheral edge is disposed inward of the inner base in the planar direction and the outer peripheral edge is disposed outward of the outer base in the planar direction. Absorbent sheet as described.

Since the animal litter box has a frame having the above configuration, when the absorbent sheet is placed on the placement unit, the portion of the absorbent sheet corresponding to the leakproof wall portion is formed by the frame. Covered, difficult to contact with animals. Therefore, it is easy to maintain the state where the absorbent sheet is placed along the leakproof wall, and the urine which has leaked is blocked at a portion of the absorbent sheet corresponding to the leakproof wall. The leakage to the outside of the absorbent sheet can be more reliably suppressed. Further, since the animal litter box includes the frame having the above-described configuration, the animal urinates at the central portion, which is the urination area, at the inner side in the planar direction, that is, at a position away from the leakage barrier. easy. Therefore, when the absorbent sheet of the present embodiment is used for the animal litter box, even if the animal urinates multiple times, the part discharged from the animal corresponds to the part of the absorbent sheet corresponding to the leakproof wall part. It is difficult to reach the outside of the absorbent sheet, and it is easy to suppress leakage out of the absorbent sheet.

[Aspect 5]
The absorbent sheet according to the fourth aspect, wherein the frame has a pressing member that presses the absorbent sheet directly or indirectly.

Since the frame has a pressing member having the above-described configuration, the absorbent sheet of the present embodiment, when used for the animal litter box, can easily prevent the absorbent sheet from shifting from a desired position, and a plurality of animals can be used. Even if urine is excreted, it is easy to more reliably suppress that the urine of the animal leaks out of the absorbent sheet.

[Aspect 6]
The absorbent sheet according to any one of modes 1 to 5, wherein a surface of the leakproof wall between the inner base and the top is inclined outward in the planar direction.

Since the leak-proof wall has the above-mentioned configuration, the absorbent sheet of the present embodiment, when used for the animal litter box, can be easily positioned when the absorbent sheet is easily placed on the placement part, and used Even afterward, since it is easy to remove from the placing portion without being caught on the leak-proof wall portion, it is easy to more reliably reduce the time and effort for cleaning the animal litter box by the breeder of the animal.

[Aspect 7]
The absorbent sheet has a rectangular shape in plan view,
The placement portion has a leakage preventing wall portion non-arranging portion where the leakage preventing wall portion is not arranged at portions corresponding to the four corners of the absorbent sheet,
The absorbent sheet according to any one of aspects 1 to 6, wherein the four corners of the absorbent sheet extend outside the leakproof wall non-arranged portion in the planar direction.

In the absorbent sheet of this embodiment, the four corners extend to the outside of the leak wall non-arranged part having the above configuration, so the absorbent sheet having a planar shape is arranged on the placement part having a three-dimensional shape Also, it is easy to suppress the backlash at the four corners of the absorbent sheet, and it is easy to suppress separation and positional deviation of the absorbent sheet from the placing portion. As a result, when the absorbent sheet of this embodiment is used in the animal litter box, even if the animal urinates a plurality of times, it is possible to more reliably suppress the urine of the animal from leaking out of the absorbent sheet.

[Aspect 8]
The animal litter box includes a flow-through filter placed on the absorbent sheet in the thickness direction,
The aspect in any one of the aspects 1-7 whose projected area in the said thickness direction of the mounting surface of the said passing filter is 99 to 80% of the projected area in the said thickness direction of the part divided by the said top. Absorbent sheet.

Since the animal litter box has the flow-through filter having the above configuration, the flow-through filter moves in a planar direction from its own weight or the central portion of the flow-through filter while ensuring the flow of urine from the animal. Since it is easy to be restricted, it is easy to suppress that the absorptive sheet which exists under the said passage filter from a desired position shifts. As a result, when the absorbent sheet of this embodiment is used in the animal litter box, even if the animal urinates a plurality of times, it is possible to more reliably suppress the urine of the animal from leaking out of the absorbent sheet.

[Aspect 9]
The animal litter box further includes a fence portion installed at the extension portion so as to surround the absorbent sheet.
An absorbent sheet according to any one of aspects 1 to 8.

Since the animal litter box has the above-described configuration, when the absorbent sheet of this aspect is used for the animal litter box, urine of the animal can be removed from the absorbent sheet even when the animal urinates multiple times. It is easy to more reliably suppress leakage to the outlet. As a result, since the extension part and the fence part installed in the extension part become difficult to be polluted, it is easy to reduce the effort which cleans the toilet for animals by the breeder of the animal more certainly.

[Aspect 10]
A toilet for animals having a thickness direction and a plane direction perpendicular to the thickness direction,
The animal litter box includes a placement unit for placing the absorbent sheet,
The placement portion includes: a central portion on which the absorbent sheet is placed to be an animal's urination region in the planar direction; and a leak-barrier portion which is erected to surround the central portion; And an extending portion extending to the outside of the leakage preventing wall portion,
The leak-proof wall has a top portion higher than the height of the central portion, and an inner base and an outer base serving as a base point of rising of the leak-proof wall.
The animal litter box, wherein the absorbent sheet is configured to cover the leakproof wall and at least a part of the extension when the absorbent sheet is placed in the placement unit.

The animal litter box according to the present embodiment includes the absorbent sheet having the above-described configuration. Therefore, even if the animal urinates multiple times, it is easy to suppress the urine of the animal from leaking out of the absorbent sheet.

First Embodiment
Hereinafter, the absorptive sheet used for the toilet for animals concerning a 1st embodiment of this indication and the example of composition of the toilet for animals concerned are explained. However, the present disclosure is not limited to the present embodiment, and appropriate changes and the like can be made without departing from the spirit of the present disclosure.

The term “animal” in the present disclosure refers to dogs, dogs, cats, dogs, ferrets, monkeys, and the like, which can generally be released indoors etc., but the absorbent sheet or the animal litter box according to the present disclosure. As long as it is possible to use, the type and size thereof are not limited at all. However, the animal litter box according to the present disclosure can be particularly suitably used for a small pet indoor dog that requires toilet discipline.
Further, in the present specification, the inside and the outside refer to the positions toward and away from the center of the central portion, respectively, based on the central portion described later in the animal litter box.

FIG. 1 is a plan view showing a configuration example of the absorbent sheet 1 used in the animal litter box 3 and the animal litter box 3 according to the first embodiment of the present disclosure. FIG. 2 is an exploded perspective view showing the configuration of the animal litter box 3 of FIG. FIG. 3 is an end view along III-III of the animal litter box 3 of FIG.
As shown in FIG. 1, the animal litter box 3 according to this embodiment has a longitudinal direction L, a lateral direction W, and a thickness direction T orthogonal to one another, and extends in the longitudinal direction L through the center of the lateral direction W. It has a central axis line CL and a central axis line CW extending in the lateral direction W through the center of the longitudinal direction L.
The direction toward and away from the central axis CL is taken as the inward direction and the outward direction of the lateral direction W, respectively. The direction toward and away from the central axis CW is taken as the inward direction and the outward direction of the longitudinal direction L, respectively. Further, a direction parallel to a plane including the longitudinal direction L and the lateral direction W is also referred to as a plane direction. Here, one of the longitudinal directions L may be referred to as the front or the front, and the other may be referred to as the back or the back, one of the lateral directions W may be referred to as the left or the left, the other may be referred to as the right or the right. Or the upper side, the other is also referred to as the lower side or the lower side. The plan view refers to viewing from above in the thickness direction T. And each said definition shall be commonly used by each structure of the absorptive sheet 1 mounted in the toilet 3 for animals, and each structure of the toilet 3 for animals.

The absorbent sheet 1 according to the present embodiment is mounted on a mounting portion 7 provided on a base member 5 described later of the animal toilet 3 to absorb animal excrement (such as urine and liquid excrement). It is placed. The animal litter box 3 includes at least the placement unit 7, and further includes a liquid permeable member 9 and a holding member 11 in the present embodiment.
In the present embodiment, the absorbent sheet 1 to the animal litter box 3 are placed on the placement portion 7 provided with the absorbent sheet 1 on the base member 5, and the liquid permeable member 9 is placed on the absorbent sheet 1. It is placed, and the holding member 11 is used in a state of being placed on the base member 5 while holding the peripheral portion of the liquid-permeable member 9.
The size of the animal litter box (base member) in plan view can be appropriately changed according to the size of the animal to be used, and is not particularly limited, but for example, 30 cm × 30 cm to 100 cm × 100 cm The size of In the present specification, when referring to the dimension of an object having a predetermined area, it is expressed as (length of dimension in the longitudinal direction) × (length of dimension in the lateral direction).

[Base member]
In the present embodiment, the base member 5 is a member on which the absorbent sheet 1, the liquid-permeable member 9 and the holding member 11 are placed, and is placed, for example, on a floor or shelf in the room or on the ground outside the room. . The base member 5 has a substantially square thin plate shape extending in the planar direction. The base member 5 includes a mounting portion 7 and an outer wall portion 13 which are integrally formed. In another embodiment, the mounting portion 7 and the outer wall portion 13 may be formed separately, and may be adhered to each other.

[Placement unit]
The placement unit 7 is located approximately at the center of the base member 5 in a plan view, and has a substantially square shape. The placement unit 7 is a portion on which the absorbent sheet 1, the liquid-permeable member 9, the holding member 11, a fence portion 63 described later, and the like are placed. The size of the mounting portion in a plan view is not particularly limited, and may be, for example, 28 cm × 28 cm to 95 cm × 95 cm.

The placement unit 7 includes a central portion 17, an extension 19, and a leak-proof wall 21.
The central portion 17 is located substantially at the center of the mounting portion 7 in a plan view, but slightly shifted to one side (for example, the rear side) in the longitudinal direction L and one side (for example, the right side) in the lateral direction W It has a substantially square and flat shape. At the central portion 17, at least an absorbent 31 described later of the absorbent sheet 1 is disposed. Thus, the central portion 17 becomes an area (a urination area) in which animal excrement is excreted. The size of the central portion in plan view is not particularly limited, and for example, the size of 20 cm × 20 cm to 60 cm × 60 cm may be mentioned.

The extending portion 19 is located at the peripheral edge portion of the mounting portion 7 in a plan view, and surrounds the central portion 17 and has a flat shape. The extension 19 is a region in which the holding member 11 is placed, and the height in the thickness direction T of the central portion 17 and the height in the thickness direction T of the extension 19 are the same.

The leak preventing wall portion 21 surrounds the periphery of the central portion 17 between the central portion 17 and the extending portion 19 in a plan view, and is substantially perpendicular to the upper side in the thickness direction T from the surfaces of the central portion 17 and the extending portion 19 It has a wall-like shape standing upright, and is arranged to have a substantially square shape in plan view. Therefore, the extension part 19 can be said to be a part extending to the outside (the outer wall part 13 side) of the leakage preventing wall part 21 in the mounting part 7. The leak preventing wall portion 21 suppresses leakage of excrement excreted in the absorbent sheet 1 on the central portion 17 to the extending portion 19.

Further, the leakage preventing wall portion 21 is at the upper side of the thickness direction T with respect to the central portion 17 as well, that is, the top portion 21 b located at a higher position and the inner base side on the central portion 17 side serving as a base point of rising of the leakage preventing wall portion 21 21a and an outer base 21c on the extension 19 side.

The height of the leak-proof wall (that is, the distance in the thickness direction from the mounting surface of the animal toilet to the top) is that the excrement excreted in the center by the leak-proof wall leaks to the extension It is preferable that the diameter is about 10 to 100 mm from the viewpoint of suppressing the psychological resistance and fear when the animal enters the animal litter box while exhibiting the function of suppressing the above.

In the present embodiment, the leakage preventing wall portion 21 stands substantially vertically from the inner base portion 21a and the outer base portion 21c, but in another embodiment, the leakage preventing wall portion 21 includes the inner base portion 21a and the top portion 21b. The surface between them may be erected so as to be inclined to the outer base 21c side, in which case, when the absorbent sheet 1 is placed on the placement unit 7, it is easy to easily position it at an appropriate position . At that time, the boundary between the central portion 17 and the leakproof wall 21 is the inner base 21a, and the boundary between the extension 19 and the leakproof wall 21 is the outer base 21c. The outer base 21 c is also a boundary between the bank 25 and the leak-barrier 21.

Furthermore, when the substantially square absorbent sheet 1 is disposed in the central portion 17 of the leakage preventing wall portion 21, the leakage preventing wall is formed at portions corresponding to the four corners of the absorbent sheet 1, that is, at the four corners of the leakage preventing wall portion 21. It has a portion where the portion 21 is not disposed, that is, a leakproof wall portion non-arranged portion 23. As a result, the absorbent sheet 1 can be disposed in the central portion 17 without causing the four corners of the absorbent sheet 1 to be swollen. In another embodiment, the leakage preventing wall portion 21 does not have the leakage preventing wall portion non-arranged portion 23, and therefore may have a continuous substantially square annular shape. When the leak preventing wall portion has such a continuous substantially square annular shape, the excrement excreted in the absorbent sheet 1 on the central portion 17 is further suppressed from leaking to the extending portion 19 it can.

The extension part 19 includes a bank 25 formed in the shape of a bank so as to surround the periphery of the leakproof wall 21 on the side in contact with the leakproof wall 21. The height in the thickness direction T of the bank 25 is higher than the height in the thickness direction T of the central portion 17 and the other portions of the extension 19, that is, the thickness direction T from the other portion of the extension 19. It's rising above the However, the height in the thickness direction T of the bank 25 is lower than the height in the thickness direction T of the leakproof wall 21. The bank portion 25 suppresses leakage of excrement excreted in the central portion 17 from the leakproof wall portion non-arrangement portion 23 to the extension portion 19. In another embodiment, the extension 19 may not include the bank 25.

The outer wall portion 13 is provided so as to be substantially perpendicular to the plane direction above the outer edge of the mounting portion 7 so as to surround the periphery of the mounting portion 7 in a plan view. The outer wall portion 13 is a portion that forms the contour of the animal litter box 3. In another embodiment, the outer wall portion 13 may be provided upright from the outer edge of the mounting portion 7 above the thickness direction T with an inclination with respect to the plane direction. When the animal litter box 3 further includes the fence part 63 described later, the outer wall part 13 blocks the outward movement so that the fence part 63 to be placed later does not protrude from the animal litter box 3.

Absorbent sheet
The absorbent sheet 1 includes a top sheet 27, a back sheet 29, and an absorber (absorbent portion) 31. The surface sheet 27 is a liquid-permeable sheet, and is, for example, a non-woven fabric or a porous film.
The back sheet 29 is a liquid impermeable sheet, for example, a film.
The absorber 31 is a member having a liquid absorbing property disposed between the top sheet 27 and the back sheet 29. The absorber in the present disclosure includes, for example, those made of pulp, a water absorbing polymer, or a combination thereof, and preferably contains both a pulp and a water absorbing polymer. In another embodiment, another sheet may be included between the absorber 31 and the surface sheet 27, for example, a sheet for coloring, antibacterial or diffusion, and the absorber 31 is composed of an absorbent core and a core wrap. It is also good.

The excrement (urine) excreted by the animal is absorbed and held by the absorber 31 through the surface sheet 27. The top sheet 27 and the back sheet 29 have substantially the same substantially square shapes in plan view. Absorbent body 31 has a substantially square smaller than them in plan view, corresponding to substantially square front sheet 27 and back sheet 29, and is disposed in the central portion of top sheet 27 and back sheet 29. . The top sheet 27 and the back sheet 29 are overlapped and joined to each other at the outer peripheral edge where the absorber 31 is not present. As a result, a flap 33 formed of the top sheet 27 and the back sheet 29 is formed on the outer peripheral edge of the absorbent sheet 1.

In the present embodiment, the shapes of the absorbent sheet 1, the absorbent body 31 and the central portion 17 are substantially square, the sizes of the absorbent body 31 and the central portion 17 are substantially the same, and the outer edge of the flap portion 33 is extended It extends to the outlet 19. In that case, for example, 20 cm × 20 cm to 60 cm × 60 cm may be mentioned for the absorber, and for example, 3 cm to 10 cm may be mentioned for the width of the flap part annularly surrounding the absorber. The ratio of the width of the flap to the length of one side of the absorber may be, for example, about 0.15 to 0.2.
The size of the entire absorbent sheet including the flaps may be, for example, 26 cm × 26 cm to 80 cm × 80 cm.

[Liquid permeable member]
The liquid-permeable member 9 allows the animal to tamper with the absorbent sheet 1 while passing the animal's excrement to the absorbent sheet 1, and the foot of the animal is wetted by the excrement on the surface of the absorbent sheet 1 It is a member which controls things etc. The liquid permeable member 9 is formed so as to cover the central portion 17 and the leak preventing wall portion 21 in a plan view, and has a substantially square shape. The liquid-permeable member 9 is placed on the upper surface of the absorbent sheet 1 at a portion overlapping the absorber 31 at least in the thickness direction T when using the animal litter box 3 to cover at least the absorber 31. However, "covering" an object means spreading from the upper side in the thickness direction T to one surface of the surface of the object and making the object shielded from the outside (the same applies hereinafter). In another embodiment, the liquid-permeable member 9 may cover at least a portion overlapping the central portion 17 in at least the thickness direction T, and at least in the thickness direction T from the central portion 17 to at least a part of the extending portion 19 The overlapping portion may be covered.

The liquid permeable member 9 is configured to be movable upward in the thickness direction T in response to the upward movement of the upper surface in the absorbent sheet 1 in the thickness direction T accompanying expansion of the absorbent sheet 1. . The liquid-permeable member 9 includes the mesh member 35 on the upper side in the thickness direction T and the flow-passing filter 37 on the lower side.

The liquid-passing filter 37 is formed to cover mainly the absorbent body 31 on the central portion 17 of the absorbent sheet 1 placed on the central portion 17, ie, the placement portion 7 in plan view, It has an approximately square shape which is slightly smaller.
The term “one size smaller” means that the projected area in the thickness direction of the placement surface of the flow-through filter is 99 to 80% of the projected area in the thickness direction of the portion divided by the top of the leakproof wall. Means to be. Here, when the top has a predetermined width in plan view, the portion defined by the top is a portion defined by the innermost portion in the planar direction at the top, and the top is When it exists discontinuously, it shall mean the part divided by the imaginary line which connects a top and adjacent tops.

The liquid flow filter 37 circulates excrement flowing from the upper surface side through the mesh member 35 toward the absorbent body 31 of the absorbent sheet 1 on the lower surface side, and can absorb and deodorize excrement. The passing filter 37 is a filter having a corrugated structure provided with a large number of holes (or gaps, openings, etc.) penetrating in the thickness direction T. The aperture ratio of the liquid passing filter in plan view is, for example, 50 to 90%. In this specification, the aperture ratio in plan view of the object is obtained by cutting the surface of the object as a 30 mm × 30 mm sample, calculating the area of the opening of the sample surface, and dividing by the sample area. It is obtained as a percentage of the value given. Even if the absorbent sheet 1 absorbs a large amount of excrement to decrease the absorption speed or rewet, the excrement passes through the filter even if the excrement temporarily remains on the upper surface of the absorbent sheet 1 Arrival of the mesh member 35 beyond 37 can be suppressed, and generation of odor due to excrement accumulated in the mesh member 35 can be suppressed. The size of the flow-through filter in a plan view is not particularly limited, and for example, the size of 19 cm × 19 cm to 58 cm × 58 cm may be mentioned. In another embodiment, the flow-through filter 37 may have a structure other than a corrugated structure having a large number of holes (or gaps, openings, etc.) penetrating in the thickness direction T.

In the present embodiment, as a preferred embodiment, the liquid-permeable member 9 of the animal litter box 3 includes the liquid-passing filter 37 located on the side of the absorbent sheet 1. Therefore, in such a toilet 3 for animals, the absorbent sheet 1 absorbs a large amount of excrement to decrease the absorption speed or rewet, and the excrement is temporarily accumulated on the upper surface of the absorbent sheet 1. Even if it remains, the excrement can be prevented from passing over the liquid flow filter 37 and reaching the upper surface of the liquid permeable member 9 (mesh member 35), and the excrement is accumulated in the liquid permeable member 9 to cause odor Can be suppressed.

The mesh member 35 covers the central portion 17 and the leak preventing wall portion 21 in a plan view, that is, a part of the outer periphery of the absorbent sheet 1 extending to the outer sides of the liquid passing filter 37 and the liquid passing filter 37. And has a substantially square shape that is one size larger than the leakage preventing wall 21. The mesh member 35 circulates to the flow-through filter 37 below the thickness direction T without storing excrement excreted by the animal. The size of the mesh member in a plan view is not particularly limited, but may be, for example, 22 cm × 22 cm to 66 cm × 66 cm. The mesh member 35 includes a mesh portion 39 and a frame portion 41 which are integrally formed. In another embodiment, the mesh portion 39 and the frame portion 41 may be separately formed and integrally formed by adhesion or the like.

The mesh portion 39 has a substantially square thin plate shape expanding in the planar direction. The mesh portion 39 has liquid permeability so that excrement is not accumulated on the upper surface. Specifically, the mesh portion 39 has a honeycomb structure including a plurality of openings (or gaps, holes, and the like) penetrating in the thickness direction T. The aperture ratio is, for example, 50 to 90%. In another embodiment, the mesh portion 39 may have a structure other than a honeycomb structure having a plurality of openings (or gaps, holes, etc.) penetrating in the thickness direction T.

The frame portion 41 is a portion other than the mesh portion 39 in the mesh member 35, and is a substantially flat frame-shaped portion expanding in the planar direction. The frame portion 41 holds the mesh portion 39 inside the frame in the planar direction. The frame portion 41 corresponds to the longitudinal direction L and the lateral direction W corresponding to the sides 41-1, 41-2, 41-3 and 41-4 extending in the longitudinal direction L and the lateral direction W in the substantially square mesh portion 39. A movement restricting portion 43 is provided substantially at the center in the longitudinal direction L and the transverse direction W of each of the extending side portions. The movement restricting portion 43 is a circular opening in plan view, and can insert a separate convex portion or the like within the range of the size of the opening. In another embodiment, the movement restriction unit 43 may not be provided.

[Holding member]
The holding member 11 has a frame 47 for holding the liquid-permeable member 9 at its peripheral portion, and an opening 45 surrounded by the frame 47 in the planar direction. The frame 47 of the holding member 11 is formed to cover the peripheral portion of the liquid-permeable member 9 and the peripheral portion of the central portion 17 of the mounting portion 7 in plan view, and is a size larger than the liquid-permeable member 9 It has a substantially square frame shape. The opening 45 corresponds to a region in which the animal excretes excrement, that is, a region overlapping the absorber 31 of the absorbent sheet 1 in the thickness direction T. In other words, the opening 45 is provided at a position substantially overlapping with the central portion 17, the flow-through filter 37 and the mesh portion 39 in a plan view. The size of the holding member in a plan view is not particularly limited, and for example, the size of 27 cm × 27 cm to 90 cm × 90 cm can be mentioned.

The frame 47 has a frame shape having an opening 45 on the inner side in the plane direction, and the height in the thickness direction T becomes lower toward the inner side (opening 45 side) of the frame. It is inclined. Further, the frame body 47 includes an inner peripheral edge 49 and an outer peripheral edge 51.
The opening 45 is located substantially at the center of the holding member 11 in a plan view, but slightly offset to one side (for example, the rear side) in the longitudinal direction L and one side (for example, the right side) in the lateral direction W , Has a substantially square shape. Therefore, the side portions of the frame 47 in FIG. 2, that is, the right side portion 47-1 and the left side portion 47-3 in the horizontal direction W in the frame 47, the rear side portion 47-2 and the front side portion 47 in the longitudinal direction L In -4, the narrow right side portion 47-1 and the rear side portion 47-2, and the wide left side portion 47-3 and the front side portion 47-4 are present. However, the right side portion 47-1 and the rear side portion 47-2, and the left side portion 47-3 and the front side portion 47-4 have the same structure except that their widths are different. In another embodiment, the opening 45 may be located at the center of the holding member 11 in plan view and not shifted in the longitudinal direction L and the transverse direction W, that is, the right side portion 47-1, the left side The portion 47-3, the rear side portion 47-2 and the front side portion 47-4 may have the same width.

Further, the frame 47 has an opening 55 at the lower side in the thickness direction T at the side surface portion 53 extending downward substantially perpendicularly to the thickness direction T from the outer peripheral edge portion 51. With this configuration, the position of the absorbent sheet 1 can be adjusted by pulling the corner of the absorbent sheet 1 placed on the placement unit 7 from the opening 55 with a finger.

FIG. 5 is a perspective view of the holding member of the animal litter box of FIG. 1 as viewed from the back side. A plurality of holding members 11 are provided on the back side of the frame 47, that is, on the lower side in the thickness direction T, from the end edge on the side surface 53 side of the frame 47 to the end edge on the opening 55 side. It further comprises one rib 57 and a plurality of second ribs 59.

One first rib 57 is provided at each end of each side of the frame 47 (right side portion 47-1, rear side portion 47-2, left side portion 47-3 and front side portion 47-4) Two second ribs 59 are provided between the first ribs 57 at both ends. In another embodiment, the first rib 57 may be provided at one or three or more locations on each side of the frame 47, or the first rib 57 may not be provided. In still another embodiment, the second rib 59 may be provided at one or three or more places on each side of the frame 47, or the second rib 59 may not be provided. In the holding member 11, the right side portion 47-1 and the rear side portion 47-2 and the left side portion 47-3 and the front side portion 47-4 have the same structure except that they have different widths. The structures of the first rib 57 and the second rib 59 in each side portion are the same except for the difference in dimension corresponding to the width of each side portion.

Each of the first rib 57 and the second rib 59 is extended so as to hold the frame 47 from the lower side in the thickness direction T from the end on the side surface 53 side of the frame 47 to the opposite end. It is done. The first rib 57 and the second rib 59 are both formed integrally with the frame 47 and the side portion 53. In another embodiment, the first rib 57 and the second rib 59 may be formed separately from the frame 47 and / or the side surface portion 53, and may be bonded or the like.

The second rib 59 is formed with a protruding portion 59 a that protrudes in a downward convex shape in the thickness direction T, and is formed to be inserted into the opening of the movement restricting portion 43 of the frame portion 41 of the mesh member 35. It is done.

The configuration of each part of the base member 5, each part of the absorbent sheet 1, each part of the liquid permeable member 9, and each part of the holding member 11 in the present embodiment has been described above, but each has a substantially square planar shape Therefore, they have the same planar shape (including similar shapes). In another embodiment, each portion of the base member 5, each portion of the absorbent sheet 1, each portion of the liquid permeable member 9 and each portion of the holding member 11 have a circular shape, an elliptical shape, a polygonal shape, or a planar shape of a combination thereof. It may or may not have the same planar shape (including similar shapes). However, since the central portion 17, the leak-proof wall portion 21, the absorbent sheet 1 and the liquid-permeable member 9 are sequentially laminated and covered with each other, they have substantially the same planar shape (including similar shapes). It is preferable to have.

The material used to form the base member 5, the liquid-permeable member 9 and the holding member 11 is not particularly limited, and may be a resin material or metal. As for the flow-through filter 37, pulp other than the above may be mentioned. The method of forming the base member 5, the liquid-permeable member 9, and the holding member 11 is not particularly limited, and examples thereof include compression molding, injection molding and blow molding when the material is a resin material. When the material contains a material other than a resin material, a method of cutting out a member from the material and bonding the members with an adhesive or the like or a method of bonding the members by welding or the like can be mentioned.

Moreover, although the toilet 3 for animals is provided with the base member 5, the liquid-permeable member 9, and the holding member 11 in this embodiment, in another embodiment, the toilet 3 for animals is the inside of the base members 5. As long as the mounting portion 7 is provided, the liquid permeable member 9 and the holding member 11 may not be provided.

[Placement mode of absorbent sheet etc.]

Next, a state in which the base member 5, the absorbent sheet 1, the liquid-permeable member 9 and the holding member 11 are laminated, that is, the state of FIG. 1 in which the absorbent sheet 1 is disposed will be described. However, in the animal litter box 3, portions of the base member 5, the liquid-permeable member 9, and the holding member 11 corresponding to the parts of each side of the holding member 11 are taken as parts of each side of the animal toilet 3. And the part of each side of the toilet 3 for animals is different in the width of the part of each side of the holding member 11 and the difference in the width of the extension part 19 corresponding to the part of each side, All have the same structure. Therefore, the laminated state of the portions corresponding to the narrow right side portion 47-1 of the holding member 11 among the portions of each side of the animal litter box 3 will be described below. FIG. 3 is an end view along III-III of the animal litter box of FIG.

The absorbent sheet 1 is mounted on the upper surface of the mounting portion 7 of the base member 5. Specifically, the absorbent sheet 1 is placed on the upper surface of the placement unit 7 such that the absorbent sheet 1 covers the central portion 17, the leak preventing wall portion 21, and at least a part of the extending portion 19. Be done. In this case, in the absorbent sheet 1, the absorbent body 31 or the flap 33 is along the surface including the inner base 21 a and the top 21 b of the leakproof wall 21, and the flap 33 further covers the outer base 21 c of the leakproof wall 21. It mounts so that it may be extended to the surface of the bank 25 over the outer base 21c along the surface which contains. The outer end of the flap 33 extends to the outer extension 19 of the bank 25.

In the present embodiment, the absorbent body 31 of the absorbent sheet 1 is disposed at a position overlapping the central portion 17 in the thickness direction T when the absorbent sheet 1 is placed on the placement unit 7 and is an absorbent body An outer edge 31a in the plane direction of 31 is disposed so as to be located in the plane direction between a portion corresponding to the top 21b and a portion corresponding to the inner base 21a. That is, the outer edge 31 a in the planar direction of the absorber 31 exists on the surface between the top 21 b of the leakproof wall 21 and the inner base 21 a.
In another embodiment, the outer edge 31a in the planar direction of the absorber 31 may be present inside the portion corresponding to the inner base portion 21a, as described in a second embodiment described later. In still another embodiment, the absorbent body 31 is present up to the outer end thereof so that the absorbent sheet 1 does not have a portion corresponding to the flap portion 33, and the outer edge in the planar direction of the absorbent body 31 a may be extended to the extension 19.

The bank 25 extends outward in the lateral direction W by a predetermined width than the side surface. In another embodiment, the absorbent sheet 1 may have the outer end of the flap 33 in the range between the inside of the central portion 17 and the outer base 21 c of the leakproof wall 21. In still another embodiment, the absorbent sheet 1 is separated so that the absorbent body 31 or the flap 33 does not follow the surface of any one of the inner base 21a, the top 21b and the outer base 21c of the leakproof wall 21. It is also good.

Further, in the present embodiment, the four corners of the flap portion 33 in the absorbent sheet 1 extend outside the leakproof wall portion non-arranged portion 23 in the planar direction.

The liquid permeable member 9 is placed on the upper surface of the absorbent sheet 1. Specifically, the liquid-permeable filter 37 of the liquid-permeable member 9 is placed on the upper surface of the absorbent sheet 1. At this time, since the flow-through filter 37 is located inside the leak-proof wall 21 in plan view, it can be in direct contact with the upper surface of the absorbent sheet 1. Furthermore, the mesh member 35 is placed on the upper surface of the flow-through filter 37. Specifically, the mesh portion 39 of the mesh member 35 covers a portion other than the peripheral portion of the central portion 17 in a plan view, and the frame portion 41 of the mesh member 35 is a peripheral portion of the central portion 17, a leakproof wall portion 21 and the bank part 25 (a part) of the extension part 19 are covered. Here, when the flow-through filter 37 and the absorbent sheet 1 are stacked, the height of the upper surface of the flow-through filter 37 is the height of the leak-proof wall portion 21 as the height in the thickness direction T based on the central portion 17. And the height of the top 21b of the

The liquid-passing filter 37 is located inside the leak-proof wall 21 in plan view. Further, the mesh member 35 covers the bank portion 25 of the central portion 17, the leak preventing wall portion 21, and the extending portion 19 in a plan view.

A holding member 11 is placed on the upper surface of the extension 19 of the base member 5 to cover the upper side of the peripheral portion of the liquid-permeable member 9. At that time, in the frame body 47, the inner peripheral edge 49 is on the inner side in the planar direction than the inner base 21a of the leakproof wall 21 and the outer peripheral edge 51 is on the outer side than the outer base 21c of the leakproof wall 21 in the planar direction. Be placed. The lower surface of the second rib 59 of the frame 47 is in contact with the extension 19, and the inner surface (opening 45 side) faces the side surface of the mesh member 35.

The outer end of the flap portion 33 of the absorbent sheet 1 is inserted between the bank portion 25 and the first rib 57 and the second rib 59 and sandwiched. Therefore, the first rib 57 and the second rib 59 of the frame 47 function as a pressing member that presses the absorbent sheet 1 directly. In addition, the projection 59 a of the second rib 59 functions as a pressing member that indirectly presses the absorbent sheet 1 through the mesh portion and the liquid passing filter 37.

Next, the functions of the absorbent sheet 1 and the animal litter box 3 will be described in comparison with the conventional absorbent sheet and animal litter box.
FIG. 4: is a schematic diagram which shows the flow of the urine U in the absorbent sheet 1 corresponding to the principal part enlarged part of FIG. FIG. 8 is a schematic view showing the flow of urine U ′ in the absorbent sheet 1 ′ corresponding to the main part enlarged portion of the conventional animal litter box 3 ′.

Although the conventional animal litter box 3 'shown in FIG. 8 is provided with a projection 61 for engaging with a member corresponding to the holding member 11 of the present embodiment, the toilet bowl 3' has absorbability of animal urine U '. Since it is not intended to suppress leakage to the outside of the sheet 1, there is a possibility that urine of the animal may leak out of the absorbent sheet 1, particularly when the animal urinates multiple times. More specifically, the urine U 'before being drawn into the absorbent sheet 1' is that the animal urinates multiple times with the animal toilet 3 'and the urine U' becomes difficult to be drawn into the absorbent sheet. When it flows on the surface sheet 27 'of the absorbent sheet 1' and spills out of the absorbent sheet 1 ', that is, it leaks along the surface sheet 27' of the absorbent sheet 1 '(urine U' Flows like arrow A1 '), and since the protuberance 61 hardly exerts a leak preventing function, the urine U' flows on the sheet 1 'like arrows A2', A3 'and A4', and finally It is easy for urine U 'to leak out of sheet 1' like arrow A5 '.

On the other hand, in the present embodiment, the animal litter box 3 includes the leak-proof wall portion 21, and is configured to cover the leak-proof wall portion 21 when the absorbent sheet 1 is placed on the placement portion 7. It is done. Therefore, when the absorbent sheet 1 is used in the animal litter box 3, the animal urinates multiple times in the animal litter box 3 and urine U is less likely to be drawn into the absorbent sheet, whereby the absorbent sheet 1 is contained in the absorbent sheet. Even if urine U before being drawn in leaks over the surface sheet 27 of the absorbent sheet 1 (when the urine U flows as shown by arrow A1), the leaked urine U is prevented in the absorbent sheet It is blocked at a portion corresponding to the leak wall portion, and it is easy to suppress the leakage to the outside of the absorbent sheet 1 (the urine U hardly flows as shown by the arrow A2).
In addition, even if urine U that has leaked can not be blocked by the portion corresponding to the leak-proof wall 21 in the absorbent sheet 1 (even if the urine U flows like arrow A3), the present embodiment Since the absorbent sheet 1 in the form is configured to cover at least a part of the extension part 19, the urine U can be removed by the outer edge portion of the absorbent sheet 1 extending in the part corresponding to the extension part 19. (The urine U passes through the surface sheet 27 and is moved toward the arrow A4 so that the urine U is easily contained in the absorbent sheet 1 by the outer edge portion of the absorbent sheet 1) It is easy to control that urine leaks out of the absorptive sheet 1 and that urine leaks into the animal litter box 3 to contaminate the toilet.
As described above, even if the absorbent sheet 1 urinates multiple times, it is easy to prevent the urine of the animal from leaking to the absorbent sheet 1. As a result, the animal litter box 3 is not easily contaminated, and the animal breeder It is easy to reduce the trouble of cleaning the toilet 3.

In the embodiment, the absorbent body 31 of the absorbent sheet 1 is disposed at a position overlapping the central portion 17 in the thickness direction T when the absorbent sheet 1 is placed on the placement unit 7 and The outer edge 31a in the planar direction of the absorber 31 is disposed so as to be located between the portion corresponding to the top 21b and the portion corresponding to the inner base 21a in the planar direction.

When the animal urinates more than once, urine retained in the absorber increases, and even if urine is drawn into the absorbent sheet (whether urine U flows as indicated by arrow A5), urine does not fall into the absorber It moves in the absorbent sheet without being held (the urine U flows as shown by arrow A6), and exudes from the top sheet or from between the top sheet and the back sheet. That is, it may bleed and leak. However, since the absorbent sheet 1 of the present embodiment is placed as described above, the urine U is outside in the planar direction than the portion of the absorbent sheet 1 corresponding to the top 21 b of the leakproof wall 21. Bleeding is unlikely to occur at the part located at the side of the sheet, and even if the animal urinates multiple times, it is possible to more reliably suppress the urine U of the animal from leaking out of the absorbent sheet 1. Moreover, since the outer edge 31a in the planar direction of the absorber 31 is placed on the portion corresponding to the inner base 21a or outside the portion in the planar direction, even if the animal urinates multiple times The urine is hard to be stored on the surface sheet 27 at the portion corresponding to the boundary between the leakproof wall 21 and the central portion 17 (that is, the inner base 21a of the leakproof wall 21), and the animal urine is absorbent Since it is easy to suppress the leak on the surface of 1, even if the animal urinates multiple times, it is easy to more surely suppress the urine U of the animal leaking out of the absorbent sheet 1.

In addition, since the animal litter box 3 includes the frame 47 having the above-described configuration, when the absorbent sheet 1 is placed on the placement unit 7, the absorbent sheet 1 is placed along the leakproof wall 21. It is easy to maintain the placed state, and the leaked urine is blocked by the portion of the absorbent sheet 1 corresponding to the leak-proof wall 21, and it is easier to more reliably suppress the leakage of the absorbent sheet 1 to the outside. Further, in the animal litter box 3, the animal easily urinates at the central portion 17 where the urination region is located, in the plane direction, that is, at a position away from the leakproof wall portion 21. Therefore, when the absorbent sheet 1 of this embodiment is used for the animal litter box 3, the urine discharged from the animal corresponds to the leakproof wall portion 21 in the absorbent sheet 1, even if the animal urinates multiple times. It is difficult to reach the portion where it is formed, and it is easy to suppress leakage to the outside of the absorbent sheet 1.

In the present embodiment, since the frame 47 includes the pressing member (the first rib 57, the second rib 59, and the projection 59a of the second rib 59 of the frame 47) having the above configuration, the present embodiment When the absorbent sheet 1 is used in the animal litter box 3, it is easy to suppress the absorbent sheet 1 from shifting from the desired position, and even if the animal urinates multiple times, the urine U of the animal is absorbed. It is easy to more reliably suppress leakage to the outside.

Furthermore, in another embodiment, when the surface between the inner base 21a and the top 21b in the leakproof wall 21 is inclined outward in the planar direction, that is, between the inner base 21a and the top 21b. In the case where the surface of the sheet stands up to be inclined to the side of the outer base 21c, since the leakproof wall 21 has such a configuration, when the absorbent sheet 1 is used for the animal litter box 3, the absorption It is easy to position the sexing sheet when placing it on the placing part 7, and it is easy to remove it from the placing part 7 without being caught by the leakproof wall 21 even after use. It is easier to reduce the time and effort required to clean

Moreover, since the four corners of the absorbent sheet 1 of the present embodiment extend outside the leakproof wall portion non-arranged portion 23 having the above configuration, the absorbent sheet 1 having a planar shape has a three-dimensional shape. Even when disposed on the placement unit 7, it is easy to suppress backlash at the four corners of the absorbent sheet 1, and it is easy to suppress separation and positional deviation of the absorbent sheet 1 from the placement unit 7. As a result, when the absorbent sheet 1 is used in the animal litter box 3, even if the animal urinates a plurality of times, it is possible to more reliably suppress the urine of the animal from leaking out of the absorbent sheet 1.

Further, since the animal litter box 3 is provided with the flow-through filter 37 having the above configuration, the flow-through filter 37 can be provided from the dead weight or the central portion of the flow-through filter 37 while securing the flowability of urine discharged from the animal. By being easily restricted from moving in the planar direction, it is easy to suppress that the absorbent sheet 1 present below the liquid-permeable filter 37 deviates from a desired position. As a result, when the absorbent sheet 1 is used in the animal litter box 3, even if the animal urinates multiple times, it is possible to more reliably suppress the urine of the animal from leaking out of the absorbent sheet 1.

Subsequently, second and third embodiments of the animal litter box according to the present disclosure will be described. In addition, in each embodiment, the same code | symbol is attached | subjected about the same member as the above-mentioned 1st Embodiment, the description is abbreviate | omitted, and only a different part from 1st Embodiment is demonstrated.

Second Embodiment
A second embodiment of the animal litter box according to the present disclosure will be described.
FIG. 6 is a view showing an arrangement mode of the absorbent sheet 1 according to the second embodiment of the present disclosure, corresponding to FIG. 3 according to the first embodiment.
The present embodiment differs from the first embodiment in the size of the absorbent sheet 1 in the plane direction of the absorbent sheet 1 and the outer edge of the absorbent body 31 when the absorbent sheet 1 is disposed in the animal litter box 3. It is a positional relationship of 31b and the leak-proof wall part 21. FIG.

In the present embodiment, the absorbent body 31 is disposed at a position overlapping the central portion 17 in the thickness direction T when the absorbent sheet 1 is placed on the placement unit 7 and in the planar direction of the absorbent body 31. The outer edge 31 b is disposed so as to be located inside the portion corresponding to the inner base 21 a of the leakproof wall 21 in the planar direction.

The absorbent sheet according to the present embodiment is disposed as described above, whereby in the absorbent sheet 1, a portion corresponding to the inner base portion 21 a or a portion positioned outside the portion, that is, a leakage preventing wall portion A flap 33 is present at a portion corresponding to 21. That is, in the absorbent sheet 1, the absorbent body 31 does not exist in the portion corresponding to the leak-proof wall portion 21, and the thickness of the absorbent sheet 1 becomes thinner than the portion where the absorbent body 31 exists. Therefore, the absorbent sheet is likely to be disposed along the leakproof wall 21 at a portion corresponding to the leakproof wall 21. As a result, even if the animal urinates multiple times in the animal litter box 3 and urine leaks over the surface sheet of the absorbent sheet 1, the urine leaked along the leakproof wall portion 21 of the absorbent sheet 1. It is blocked by the corresponding part, and it is possible to more reliably suppress leakage to the outside of the absorbent sheet 1.

However, the absorber overlaps with the central portion by at least 60% or more, preferably 70% or more in the thickness direction. It is from a viewpoint of ensuring the absorbency of an absorptive sheet.

Third Embodiment
Subsequently, a third embodiment of the animal litter box according to the present disclosure will be described.
FIG. 7 is a perspective view showing a configuration example of the animal litter box according to the third embodiment of the present disclosure to which the absorbent sheet according to the present disclosure can be applied.

In the present embodiment, the animal litter box 3 is a portion of each side of the frame 47 on the extension portion 19, that is, the right side portion 47-1 and the left side portion 47-3 of the frame 47 in the horizontal direction W A fence portion 63 is provided along the outer peripheral edge portion 51 of the rear side portion 47-2 and the front side portion 47-4 of L.
The fence portion 63 has the surfaces 63-1, 63-2, 63-3 and 63-4 at positions corresponding to the sides 47-1, 47-2, 47-3 and 47-4 of the frame 47, respectively. Bar-shaped fences are provided at intervals of 20 mm on each side. In addition, although the fence part 63 consists only of four surfaces in this embodiment, in another embodiment, the fence part 63 may further be equipped with the surface which comprises a ceiling part other than the said four surfaces.

In the present embodiment, the fence portion 63 is provided with an opening 63a through which the animal can enter the animal litter box 3 on the surface 63-3. The opening may be appropriately changed in accordance with the size of the animal to which the animal toilet is applied, but preferably has a size of approximately 200 × 200 mm to 900 × 900 mm. Moreover, the said opening part may be provided in two or more surfaces in a fence part, and may be comprised so that opening and closing is possible.

In the present embodiment, the fence portion 63 is installed so as to surround the absorbent sheet 1 in a plan view. More specifically, after arranging the absorbent sheet 1 in the first embodiment described above to the animal litter box 3, the fence portion 63 is formed on the extension portion 19 by the outer peripheral portion 51 of the outer wall portion 13 and the frame 47. And a gap 65 formed between them.

When the animal litter box 3 is used as the animal litter box 3 by having the above configuration, even if the animal urinates multiple times, the urine of the animal is outside the absorbent sheet 1 and hence the extension part It is easy to more reliably suppress leakage to 19. As a result, since the extension part 19 and the fence part 63 installed in the extension part 19 become difficult to be polluted, it is easy to reduce the effort which cleans the animal litter box 3 by the animal breeder more reliably.

In addition, the absorbent sheet used for the animal toilet according to the present disclosure and the animal toilet are not limited to the above-described embodiment and the exemplary description, within the scope not departing from the purpose and the purpose of the present disclosure, Combinations and changes can be made as appropriate.
Further, in the present disclosure, the ordinal numbers such as “first”, “second” and the like are used to distinguish the items to which the ordinal numbers are attached, and mean the order, priority, importance, etc. of each item. It is not a thing.

DESCRIPTION OF SYMBOLS 1 Absorbent sheet 3 Toilet for animals 5 Base member 7 Mounting part 9 Liquid-permeable member 11 Holding member 17 Central part
19 Extension
Reference Signs List 21 leakproof wall 21a inner base 21b top 21c outer base 23 leakproof wall non-arranged 27 surface sheet 29 backsheet 31 absorber 31a outer edge 33 flap 47 frame 49 inner peripheral edge 51 outer peripheral edge 63 fence

Claims

An absorbent sheet for use in a toilet for animals having a thickness direction and a plane direction perpendicular to the thickness direction,
The animal litter box includes a placement unit for placing the absorbent sheet,
The placement portion includes: a central portion on which the absorbent sheet is placed to be an animal's urination region in the planar direction; and a leak-barrier portion which is erected to surround the central portion; And an extending portion extending to the outside of the leakage preventing wall portion,
The leak-proof wall has a top portion higher than the height of the central portion, and an inner base and an outer base serving as a base point of rising of the leak-proof wall.
The absorbent sheet, wherein the absorbent sheet is configured to cover the leakproof wall and at least a part of the extension when the absorbent sheet is placed on the placement section.
The absorbent sheet includes a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed therebetween.
The absorbent body is disposed at a position overlapping the central portion in the thickness direction when the absorbent sheet is placed on the placement portion, and an outer edge of the absorbent body in the planar direction is the absorbent body. The absorbent sheet according to claim 1, wherein the absorbent sheet is disposed so as to be located between the portion corresponding to the top and the portion corresponding to the inner base in a planar direction.
The absorbent sheet includes a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed therebetween.
The absorbent body is disposed at a position overlapping the central portion in the thickness direction when the absorbent sheet is placed on the placement portion, and an outer edge of the absorbent body in the planar direction is the absorbent body. The absorbent sheet according to claim 1, wherein the absorbent sheet is disposed so as to be located inside a portion corresponding to the inner base in a plane direction.
The animal litter box has a frame having an inner peripheral edge and an outer peripheral edge and covering the leakproof wall.
The frame according to any one of claims 1 to 3, wherein the inner peripheral edge portion is disposed inward of the inner base portion in the planar direction and the outer peripheral edge portion is disposed outward of the outer base portion in the planar direction. The absorbent sheet as described in one item.
The absorbent sheet according to claim 4, wherein the frame has a pressing member that presses the absorbent sheet directly or indirectly.
The absorbent sheet according to any one of claims 1 to 5, wherein a surface of the leakproof wall between the inner base and the top is inclined outward in the planar direction.
The absorbent sheet has a rectangular shape in plan view,
The placement portion has a leakage preventing wall portion non-arranging portion where the leakage preventing wall portion is not arranged at portions corresponding to the four corners of the absorbent sheet,
The absorbent sheet according to any one of claims 1 to 6, wherein the four corners of the absorbent sheet extend outside the leakage preventing wall non-arranged portion in the planar direction.
The animal litter box includes a flow-through filter placed on the absorbent sheet in the thickness direction,
The projected area of the mounting surface of the liquid-permeable filter in the thickness direction is 99 to 80% of the projected area in the thickness direction of the portion divided by the top portion. The absorbent sheet as described in a term.
The absorbent sheet according to any one of claims 1 to 8, wherein the animal litter box further comprises a fence portion installed at the extension portion so as to surround the absorbent sheet.
A toilet for animals having a thickness direction and a plane direction perpendicular to the thickness direction,
The animal litter box includes a placement unit for placing the absorbent sheet,
The placement portion includes: a central portion on which the absorbent sheet is placed to be an animal's urination region in the planar direction; and a leak-barrier portion which is erected to surround the central portion; And an extending portion extending to the outside of the leakage preventing wall portion,
The leak-proof wall has a top portion higher than the height of the central portion, and an inner base and an outer base serving as a base point of rising of the leak-proof wall.
The animal litter box, wherein the absorbent sheet is configured to cover the leakproof wall and at least a part of the extension when the absorbent sheet is placed in the placement unit.