JP2024162250A - Animal toilet - Google Patents

Abstract

To provide a toilet for animals that can adjust a height of a partition part.SOLUTION: A toilet for animals 1 includes a main body container 10 and a partition part 20. The main body container 10 includes a bottom surface part 10a and a lateral surface part 10b. The partition part 20 includes a through-hole 21 through which urine passes and partitions the interior of the main body container 10 into upper and lower. The partition part 20 has a continuously variable height.SELECTED DRAWING: Figure 1

Description

The present invention relates to an animal litter box.

An example of a conventional animal litter box is described in Patent Document 1. The animal litter box described in this document includes a main container and a partition (rake) with through holes that allow urine to pass through. The partition is disposed at a predetermined position within the main container, dividing the main container into upper and lower sections. A number of granular materials with low water absorption are laid on the partition. An absorbent sheet is disposed below the partition. Urine excreted on the granular materials passes between the granular materials and through the through holes in the partition, and is then absorbed by the absorbent sheet.

JP 2003-180182 A

In the animal litter box described above, the partition is set at a predetermined position within the main container, so the partition's height is constant. However, the appropriate height of the partition varies depending on the size of the animal using the animal litter box. For this reason, in conventional animal litter boxes, the partition's position can sometimes be too high or too low.

The present invention was made in consideration of the above problems, and aims to provide an animal litter box in which the height of the partition can be adjusted.

The animal litter box according to the present invention is characterized in that it comprises a main container having a bottom and side portions, a partition having a through hole for passing urine therethrough and dividing the inside of the main container into upper and lower portions, and the height of the partition is continuously variable.

In this animal litter box, the height of the partition is variable. In this case, the height of the partition can be adjusted by changing the height of the partition to suit the size of the animal that uses the animal litter box.

The present invention provides an animal litter box with adjustable partition heights.

FIG. 1 is an end view showing one embodiment of an animal litter box according to the present invention. FIG. 2 is an end view showing the main container 10. FIG. 2 is a front view showing the main container 10. FIG. 5 is an end view taken along line VV in FIG. 4. FIG. 6 is an end view taken along line VI-VI in FIG. FIG. FIG. FIG. FIG. FIG. FIG. 2 is a diagram illustrating an example of how to use the animal litter box 1. FIG. 11 is a diagram for explaining the effect of the animal litter box 1. 1 is a diagram for explaining the effect of the animal litter box 1. FIG. FIG. 11 is an end view showing a partition portion 20 according to a modified example.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same elements are given the same reference numerals and duplicated descriptions will be omitted.

Figure 1 is an end view showing one embodiment of an animal litter box according to the present invention. The animal litter box 1 comprises a main container 10, a partition 20, a plurality of granular bodies 30, an absorbent sheet 40, and a pull-out section 50. The animal litter box 1 is, for example, a cat litter box. The main container 10 is a single box-shaped container having a bottom section 10a and a side section 10b. The main container 10 receives excreted urine. The outer shape of the main container 10 is a substantially rectangular parallelepiped. The material of the main container 10 can be, for example, plastic. Examples of plastic include polypropylene and polyethylene.

2 and 3 are an end view and a front view, respectively, of the main container 10. An opening 12 for inserting and removing the drawer 50 is formed in the side surface portion 10b of the main container 10. The opening 12 is located near the bottom surface portion 10a and has a horizontally long rectangular shape. The length of the opening 12 in the horizontal direction (left-right direction in FIG. 3) is approximately equal to the width (inner dimension) of the main container 10, and is, for example, 20 cm to 40 cm. The length of the opening 12 in the vertical direction (top-bottom direction in FIG. 3) is, for example, 2 cm to 5 cm.

Figure 4 is a plan view showing the partition 20. The partition 20 has a through hole 21 that allows urine to pass through. The through hole 21 allows urine to pass through but does not allow each granular body 30 to pass through. The partition 20 has a plurality of through holes 21. The plurality of through holes 21 are arranged in a lattice pattern in the partition 20. The planar shape of each through hole 21 is circular. The diameter of each through hole 21 is, for example, 2 mm or more and 10 mm or less.

The partition 20 has a substantially rectangular shape in a plan view. Here, substantially rectangular is not limited to a rectangle, but also includes shapes close to a rectangle, such as a rounded rectangle. The partition 20 is arranged parallel to the bottom surface 10a. The partition 20 is also arranged at a position spaced apart from both the upper end of the main container 10 (side surface 10b) and the absorbent sheet 40. As a result, the partition 20 divides the inside of the main container 10 into upper and lower spaces. That is, the partition 20 divides the internal space of the main container 10 into an upper space S1 and a lower space S2. The upper space S1 is located above the partition 20 and is a space in which multiple granular bodies 30 are laid. The lower space S2 is located below the partition 20 and is a space in which urine accumulates.

The height h1 of the partition 20 (see FIG. 1) is continuously variable. In other words, the partition 20 is configured so that it can be disposed at any position within a certain range in the vertical direction of the main container 10 (a range in which the partition 20 does not reach either the upper end of the main container 10 or the absorbent sheet 40). The height h1 is defined as the distance from the bottom surface portion 10a to the plate-shaped portion 22a described below. The difference between the maximum and minimum values of the height h1 is preferably 5 cm or more, and more preferably 10 cm or more.

5 and 6 are end views taken along lines V-V and VI-VI in FIG. 4, respectively. The partition 20 is expandable in the horizontal direction. In the expansion and contraction direction of the partition 20 (left and right directions in FIG. 4 and FIG. 6), the maximum value of the length d1 of the partition 20 is greater than the inner dimension d2 (see FIG. 1) of the main container 10, and the minimum value of the length d1 is smaller than the inner dimension d2. The partition 20 is fixed to the main container 10 by abutting the end face 20a (first end face) and the end face 20b (second end face) against the side face 10b of the main container 10. At this time, the partition 20 is fixed so that the height h1 does not change even if the weight of the animal is applied. However, the partition 20 is releasably fixed to the main container 10. Here, "releasable" means that the partition 20 can be released from its fixed state to the main container 10 without damaging the main container 10 and the partition 20. End surface 20a and end surface 20b are end surfaces located at both ends of partition 20 in the extension/contraction direction. Partition 20 is configured so that a biasing force is applied from end surface 20a and end surface 20b to side surface 10b.

The partition 20 includes a member 22 (first member) and a member 24 (second member). The member 22 has a substantially rectangular shape in a plan view. The member 24 has a substantially rectangular plate shape in a plan view. In a plan view, the area of the member 24 is smaller than the area of the member 22. The thickness of the member 24 is, for example, 5 mm or more and 10 mm or less. Of the four side surfaces of the member 22, the side surface opposite the member 24 corresponds to the end surface 20a of the partition 20. Also, of the four side surfaces of the member 24, the side surface opposite the member 22 corresponds to the end surface 20b of the partition 20. The member 24 is displaceable relative to the member 22 while overlapping the member 22. That is, the member 24 is configured to be able to move relative to the member 22 within a plane parallel to its plate surface. The member 24 is displaceable only in one direction relative to the member 22. The one direction is equal to the side direction (long side direction or short side direction) of member 22. In FIG. 4, the displacement direction of member 24 is indicated by an arrow. Members 22 and 24 partially overlap each other. That is, a part of member 22 and a part of member 24 overlap each other. The material of each of members 22 and 24 can be, for example, plastic.

7, 8, and 9 are a plan view, a side view, and a front view, respectively, of the member 22. Also, FIG. 10 is a perspective view of the member 24. The member 22 has the above-mentioned through-hole 21 formed therein. On the other hand, the member 24 does not have the through-hole 21 formed therein. The through-hole 21 in the member 22 is provided so as not to overlap with the member 24. That is, no matter where the member 24 is located within its range of motion, the through-hole 21 does not overlap with the member 24. The member 24 is provided so as to overlap only with the peripheral portion of the member 22. That is, no matter where the member 24 is located within its range of motion, the member 24 overlaps only with the peripheral portion of the member 22. The peripheral portion is a portion of the member 22 other than the central portion. The central portion is a portion surrounded by the smallest rectangle R1 (see FIG. 7) that can contain all the through-holes 21 in a plan view. The long and short sides of the rectangle R1 are parallel to the long and short sides of the member 22, respectively.

The member 22 has a plate-shaped portion 22a, a support portion 22b, and a wall portion 22c. The plate-shaped portion 22a is a plate-shaped portion in which a through hole 21 is formed. The lower surface of the plate-shaped portion 22a faces the upper surface of the member 24. The thickness of the plate-shaped portion 22a is, for example, 3 mm or more and 10 mm or less. The support portion 22b is continuous with the plate-shaped portion 22a and supports the member 24. In detail, the support portion 22b supports the member 24 by covering the side surface 24a of the member 24 to the non-facing surface. Here, the non-facing surface of the member 24 refers to the surface opposite to the surface facing the member 22. The side surface 24a is a pair of side surfaces that are parallel to the displacement direction of the member 24 among the four side surfaces of the member 24. In the case of this embodiment, the lower surface of the member 24 is the non-facing surface. The support portion 22b is hook-shaped (L-shaped in cross section).

The support portion 22b is connected to only two of the four sides of the plate-shaped portion 22a. The two sides to which the support portion 22b is connected are a pair of sides parallel to the displacement direction of the member 24. The support portion 22b is connected to only a part of each of the two sides. The support portion 22b is provided only on the periphery of the member 22. The support portion 22b may be molded integrally with the plate-shaped portion 22a, or may be molded separately from the plate-shaped portion 22a and then attached to the plate-shaped portion 22a. The distance d3 (see FIG. 5) between the plate-shaped portion 22a and the tip of the support portion 22b is designed to be slightly larger than the thickness of the member 24 so that the member 24 can slide in the displacement direction while being supported by the support portion 22b.

The wall portion 22c is continuous with the plate-shaped portion 22a. The wall portion 22c is provided so as to protrude downward from the lower surface of the plate-shaped portion 22a. The wall portion 22c faces the side surface 24b of the member 24. The side surface 24b is the side surface of the member 22 side of a pair of side surfaces perpendicular to the displacement direction of the member 24. The wall portion 22c faces the entire side surface 24b. An elastic member 26 is interposed between the wall portion 22c and the member 24 (side surface 24b). In this embodiment, the elastic member 26 is a compression coil spring. The elastic member 26 is arranged so as to expand and contract in the displacement direction of the member 24 (the expansion and contraction direction of the partition portion 20). A plurality of elastic members 26 are interposed between the wall portion 22c and the member 24 (see FIG. 4). The wall portion 22c is provided only on the periphery of the member 22. The wall portion 22c may be molded integrally with the plate portion 22a and the support portion 22b, or may be molded separately from the plate portion 22a and the support portion 22b and then attached to the plate portion 22a.

Returning to FIG. 1, a plurality of granular bodies 30 for treating excrement (mainly urine) are laid on the partition 20 (upper space S1). The plurality of granular bodies 30 are laid directly on the partition 20. Each granular body 30 is granular. Examples of the granular shape include a sphere, a cylinder, and an ellipsoid. The particle size of each granular body 30 is, for example, 5 mm or more and 30 mm or less. Here, the particle size of the granular body 30 is defined as the diameter of the smallest sphere that can contain the granular body 30. When the animal litter box 1 is in use, the granular body 30 directly receives excrement.

The granular body 30 is hydrophobic. In other words, the granular body 30 does not absorb any liquid such as urine, or if it does absorb any liquid, it absorbs very little of it. For the granular body 30 to be hydrophobic, it is necessary that the liquid passage rate measured by the following test is 60% or more. First, 50 g of the granular body 30 (sample) is placed on a sieve with an inner diameter of 10 cm and a mesh size of 1 mm. An empty beaker is placed under the sieve. Then, 30 ml of water is dripped onto the sample over 10 seconds using a syringe (Terumo 60 ml syringe) with an inner diameter of 3 cm and an inner diameter of 4 mm at the tip. After leaving it for 1 minute, the amount of water in the beaker is measured. The liquid passage rate is the ratio of the measured amount of water to the amount of dripped water (30 ml). At this time, if the amount of water in the beaker is 18 ml or more, the liquid passage rate is 60% or more, and it can be said that the granular body 30 is hydrophobic.

Each granular body 30 is preferably made mainly of an organic material. Here, the main material of the granular body 30 refers to the material that, among the one or more materials that make up the granular body 30, has the largest weight ratio in the granular body 30. Examples of such organic materials include paper, plants, plastics, and organic sludge. Each granular body 30 may be made of only organic matter, or may be made of organic and inorganic matter.

Papers refer to materials mainly composed of pulp. Examples of papers that can be used include ordinary paper (paper powder), photographic paper, release paper, fluff pulp, paper derived from PVC wallpaper (paper generated during the manufacture or classification of PVC wallpaper), paper derived from gypsum board (paper generated during the manufacture or classification of gypsum board), or paper derived from sanitary products (paper generated during the manufacture or classification of sanitary products containing paper). Examples of sanitary products containing paper include disposable diapers, sanitary napkins, urine pads, and sanitary paper (tissue paper, toilet paper, paper towels, etc.). Examples of plants that can be used include wood powder, sawdust, or plant residues (tea leaves, soybean pulp, etc.). Examples of plastics that can be used include ordinary plastics, aluminum vapor deposition films, plastics derived from PVC wallpaper (plastics generated during the manufacture or classification of PVC wallpaper), and plastics derived from sanitary products (plastics generated during the manufacture or classification of sanitary products containing plastic). Examples of sanitary products containing plastic include disposable diapers, sanitary napkins, urine pads, and sanitary masks. Examples of organic sludges that can be used include paper sludge and pulp sludge. These materials may or may not be subjected to a hydrophobic treatment (water-repellent treatment).

The granular body 30 may be made of only one material, or may be made of two or more materials. In the former case, the material making up the granular body 30 is only the main material described above. In the latter case, the granular body 30 is made of a mixture of the main material and other materials. Examples of other materials include gypsum or baking soda. Adding gypsum or baking soda makes it easier to impart hydrophobicity to the granular body 30. The proportion of gypsum or baking soda is, for example, 5% by weight or more and less than 50% by weight of the entire granular body 30.

The granular body 30 can be manufactured, for example, by the following method. First, the granulation material (material constituting the granular body 30) is granulated using a granulation device to form a granulated product that will become the granular body 30. As the granulation device, for example, an extrusion granulator can be used. The granulated product may be subjected to hydrophobic treatment as necessary. The hydrophobic treatment can be performed, for example, by coating the surface of the granulated product with a hydrophobic agent (water repellent agent). If the hydrophobic treatment is not performed, it is preferable to increase the pressure applied to the granulated material during granulation so as to minimize the occurrence of gaps in the granulated product. This is because such gaps become a path through which liquids such as urine can penetrate into the inside of the granular body 30. Prior to granulation, the granulated material is subjected to pre-treatment such as pulverization, kneading, and addition of water as necessary. In addition, after granulation, post-treatment such as sieving (sizing) and drying is performed as necessary.

An absorbent sheet 40 is disposed below the partition 20 (lower space S2). The absorbent sheet 40 absorbs urine that passes through the through-holes 21 of the partition 20. In other words, urine that passes through the through-holes 21 is absorbed by the absorbent sheet 40 and accumulates in the lower space S2.

Figure 11 is a perspective view showing the drawer 50. The drawer 50 has a bottom plate 50a, a front plate 50b, a tip plate 50c, and a pair of side plates 50d. The size of the bottom plate 50a is approximately equal to the size of the bottom surface portion 10a of the main container 10. The front plate 50b has approximately the same shape and size as the opening 12. A handle 52 is attached to the front plate 50b. The drawer 50 can be inserted into and removed from the main container 10 through the opening 12. The drawer 50 contains the absorbent sheet 40. That is, the absorbent sheet 40 is disposed in the main container 10 while being contained in the drawer 50. The drawer 50 can be made of a material such as plastic.

An example of how to use the animal litter box 1 will be described. Before the animal excretes, the height of the partition 20 is adjusted as necessary. To adjust the height of the partition 20, first, as shown in FIG. 12, the member 24 is pushed toward the member 22 to contract the partition 20. Next, in that state, the partition 20 is moved to a desired position in the main container 10, and the force pushing the member 24 is released. Then, the partition 20 is expanded by the restoring force of the elastic member 26, and the end faces 20a and 20b come into contact with the side portion 10b of the main container 10. This fixes the partition 20 in that position. When the animal excretes, the urine excreted in the main container 10 passes through the gaps between the granular bodies 30, and then moves from the upper space S1 to the lower space S2 through the through holes 21 of the partition 20. The urine that moves to the lower space S2 is absorbed by the absorbent sheet 40.

The effects of the animal litter box 1 will now be explained. In the animal litter box 1, the height of the partition 20 is variable. In this case, the height of the partition 20 can be adjusted by changing the height of the partition 20 to suit the size of the animal using the animal litter box 1. Therefore, an animal litter box 1 that allows the height of the partition 20 to be adjusted is realized.

The height of the partition 20 is continuously variable. This allows the height of the partition 20 to be adjusted more precisely than when the height of the partition 20 is variable in stages.

By the way, lowering the position of the partition 20 is advantageous in preventing the granular material 30 from scattering outside the main container 10 because the upper space S1 becomes deeper. However, on the other hand, if the upper space S1 is deep, it becomes difficult for small animals to enter and exit the main container 10. Therefore, from the viewpoint of a balance between preventing scattering of the granular material 30 and ease of entry and exit of the animal, the appropriate height of the partition 20 varies depending on the size of the animal using the animal litter box 1. Specifically, it is preferable to set the position of the partition 20 relatively low for relatively large animals as shown in FIG. 13, and to set the position of the partition 20 relatively high for relatively small animals as shown in FIG. 14. According to this embodiment, the height of the partition 20 can be adjusted according to the size of the animal.

To flexibly accommodate animals of various sizes, it is advantageous for the height of the partition 20 to vary widely. From this perspective, it is preferable that the difference between the maximum and minimum heights of the partition 20 is 5 cm or more, and more preferably 10 cm or more. On the other hand, if the range of variation in the height of the partition 20 is too large, it may become difficult to secure a space within the main container 10 in which the partition 20 can be placed. From this perspective, it is preferable that the difference between the maximum and minimum heights of the partition 20 is 20 cm or less.

The partition section 20 is expandable and contractable in the horizontal direction. In this case, when adjusting the height of the partition section 20, the partition section 20 can be contracted to smoothly move the partition section 20 to the desired position.

In the direction of expansion and contraction of the partition 20, the maximum value of the length d1 of the partition 20 is greater than the inner dimension d2 of the main container 10, and the minimum value of the length d1 is smaller than the inner dimension d2. In this case, when the partition 20 is expanded, the end faces 20a and 20b come into contact with the side face 10b, whereas when the partition 20 is contracted, the end faces 20a and 20b do not come into contact with the side face 10b.

The partition 20 is releasably fixed to the main container 10 by the end faces 20a and 20b abutting against the side surface 10b. This allows the partition 20 to be directly fixed to the side surface 10b without providing the main container 10 with a fixing means for fixing the partition 20. An example of such a fixing means is a member that protrudes from the side surface 10b to the inside of the main container 10 so that the partition 20 can be placed on it.

The partition portion 20 is configured so that a biasing force is applied to the side portion 10b from the end faces 20a and 20b. This strengthens the fixation of the partition portion 20 to the side portion 10b.

The partition 20 includes a member 22 and a member 24. The member 24 is displaceable relative to the member 22 while overlapping the member 22. This allows the partition 20, which is horizontally expandable and contractible, to be realized with a simple configuration.

Member 24 is displaceable only in one direction relative to member 22. By limiting the direction in which it can be displaced in this manner, it is easy to realize a configuration in which member 24 is displaceable relative to member 22.

The above-mentioned one direction is equal to the side direction of member 22. Matching the displaceable direction to the side direction of member 22 in this manner is also advantageous in simplifying the configuration of partition section 20.

The through hole 21 in the member 22 is provided so as not to overlap with the member 24. This makes it possible to prevent urine that passes through the through hole 21 from being blocked by the member 24 before it reaches the lower space S2.

Member 24 is arranged so as to overlap only the periphery of member 22. This makes it easy to realize a configuration in which through-hole 21 of member 22 does not overlap member 24.

In addition to the plate-shaped portion 22a, the member 22 has a support portion 22b that supports the member 24. This allows the member 24 to be maintained overlapped with the member 22 without using other members (members other than the member 22 and the member 24).

The support portion 22b supports the member 24 by covering the side surface 24a of the member 24 to the non-opposing surface. This allows the support portion 22b that supports the member 24 to be realized with a simple configuration.

The member 22 has a wall portion 22c that faces the side surface 24b of the member 24. This makes it possible to restrict the range of motion of the member 24. Specifically, it is possible to prevent the member 24 from being displaced too far toward the member 22.

When the wall portion 22c is molded integrally with the plate-shaped portion 22a and the support portion 22b, the process of forming the member 22 can be simplified. This contributes to reducing the manufacturing costs of the animal litter box 1.

An elastic member 26 is interposed between the wall portion 22c and the member 24. This makes it easy to realize a configuration in which a biasing force is applied from the end faces 20a and 20b of the partition portion 20 to the side portion 10b.

A number of elastic members 26 are interposed between the wall portion 22c and the member 24. This makes it easier to stabilize the direction of the biasing force applied from the end faces 20a and 20b to the side portion 10b (perpendicular to the side portion 10b).

The granular material 30 is hydrophobic. In this case, most of the urine excreted on the granular material 30 passes through the gaps between the granular material 30 without being absorbed by the granular material 30. This allows the urine to be quickly guided to the lower space S2.

When each granular body 30 is made primarily of organic matter, it is possible to obtain a granular body 30 suitable for incineration. This contributes to the convenience of disposing of used granular body 30. In particular, when each granular body 30 is made solely of organic matter, it is possible to obtain a granular body 30 that is even more suitable for incineration.

An absorbent sheet 40 is disposed in the lower space S2. This allows urine that accumulates in the lower space S2 to be trapped within the absorbent sheet 40. This reduces the occurrence of bad odors from the urine.

The main container 10 is provided with a pull-out section 50 that can be inserted and removed. This makes it easy to replace a used absorbent sheet 40 with a new one.

However, unlike other animals such as dogs, cats have the habit of hiding their excrement in granular material after excretion. Therefore, the animal litter box 1 in which multiple granular materials 30 are laid in the upper space S1 is particularly suitable for use as a cat litter box.

The present invention is not limited to the above embodiment, and various modifications are possible. In the above embodiment, anti-slip members 28 may be attached to the end faces 20a and 20b of the partition 20, as shown in FIG. 15, for example. The anti-slip members 28 may be made of rubber, for example. By providing the anti-slip members 28 in this manner, the partition 20 can be fixed more stably to the side face 10b.

In the above embodiment, the elastic member 26 is a spring (compression coil spring). However, an elastic body other than a spring (e.g., rubber) may be used as the elastic member 30.

In the above embodiment, the planar shape of the through hole 21 is circular. However, the planar shape of the through hole 21 may be any shape, for example, an ellipse or a polygon such as a rectangle.

In the above embodiment, the case where the drawer section 50 is provided is exemplified. However, providing the drawer section 50 is not essential. If the drawer section 50 is not provided, the absorbent sheet 40 is disposed directly on the bottom surface section 10a. In that case, naturally, the opening 12 is not provided in the side surface section 10b.

In the above embodiment, an example is shown in which the absorbent sheet 40 is provided on the main container 10. However, it is not essential to provide the absorbent sheet 40 on the main container 10. If the absorbent sheet 40 is not provided, the pull-out section 50 is not provided.

1 Animal litter box 10 Main container 10a Bottom surface 10b Side surface 12 Opening 20 Partition 20a End surface (first end surface)
20b End surface (second end surface)
21 Through hole 22 Member (first member)
22a: Plate-shaped portion 22b: Support portion 22c: Wall portion 24: Member (second member)
24a Side surface 24b Side surface 26 Elastic member 28 Anti-slip member 30 Granular material 40 Water-absorbent sheet 50 Pull-out portion 52 Handle S1 Upper space S2 Lower space

Claims (25)

a main container having a bottom portion and a side portion;
a partition portion having a through hole for passing urine therethrough and dividing the inside of the main container into upper and lower portions,
An animal litter box, wherein the height of the partition is continuously variable. The animal litter box according to claim 1,
An animal litter box, wherein the difference between the maximum and minimum heights of the partition is 5 cm or more. The animal litter box according to claim 2,
An animal litter box, wherein the difference between the maximum and minimum heights of the partition is 10 cm or more. The animal litter box according to any one of claims 1 to 3,
The partition portion is extendable and contractable in the horizontal direction. The animal litter box according to claim 4,
An animal litter box, wherein in a direction in which the partition extends or retracts, the maximum value of the length of the partition is greater than the inner dimensions of the main container, and the minimum value of the length of the partition is smaller than the inner dimensions of the main container. The animal litter box according to claim 4,
The partition portion is releasably fixed to the main container by first and second end faces located at both ends of the partition portion in the extension/contraction direction abutting the side portion of the main container, in the animal litter box. The animal litter box according to claim 6,
The partition portion is configured so that a biasing force is applied to the side portion from the first and second end faces. The animal litter box according to claim 6,
The animal litter box has anti-slip members attached to the first and second end surfaces. The animal litter box according to claim 4,
The partition portion of the animal litter box includes a first member having the through hole, and a second member that is displaceable relative to the first member while overlapping the first member. The animal litter box according to claim 9,
The animal litter box, wherein the second member is displaceable in only one direction relative to the first member. The animal litter box according to claim 10,
The first member has a generally rectangular shape in a plan view,
An animal litter box, wherein the one direction is equal to the side direction of the first member. The animal litter box according to claim 9,
An animal litter box, wherein the through hole in the first member is arranged so as not to overlap with the second member. The animal litter box according to claim 9,
The animal litter box, wherein the second member is arranged to overlap only the peripheral portion of the first member. The animal litter box according to claim 9,
The first member includes:
A plate-shaped portion in which the through hole is formed;
The animal litter box further comprises a support portion that is continuous with the plate-shaped portion and supports the second member. The animal litter box according to claim 14,
the second member has a non-facing surface that is a surface opposite to a surface facing the first member,
The support portion supports the second member by covering the side surface of the second member and the non-opposing surface of the second member. The animal litter box according to claim 14,
The animal litter box includes a wall portion that is continuous with the plate-shaped portion and faces the side of the second member facing the first member. The animal litter box according to claim 16,
The wall portion is integrally formed with the plate-shaped portion and the support portion. The animal litter box according to claim 16,
The animal litter box further comprises an elastic member interposed between the wall portion and the second member. The animal litter box according to claim 18,
The animal litter box, wherein the elastic member is a compression coil spring. The animal litter box according to claim 18,
The animal litter box, wherein a plurality of the elastic members are interposed between the wall portion and the second member. The animal litter box according to claim 1,
An animal litter box comprising a plurality of hydrophobic granular bodies laid on the partition. The animal litter box according to claim 21,
The granular bodies are animal litter boxes made primarily of organic matter. The animal litter box according to claim 22,
The granular bodies are animal litter boxes made entirely of organic matter. The animal litter box according to claim 1,
The animal litter box further comprises an absorbent sheet disposed below the partition for absorbing the urine. 25. The animal litter box according to claim 24,
A drawer portion is provided in which the absorbent sheet is housed,
An opening is formed in the side surface of the main container,
The animal litter box includes a drawer portion that can be inserted into and removed from the main container through the opening.

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