Pet system toilet

Abstract

To provide a system toilet for pets that allows pets to enter and exit without injuring themselves. [Solution] The pet system toilet 1 comprises an excretion container 2, a tray 5, a lower container 3, and a hood 4 that is arranged to cover the top of the excretion container 2 and has an opening 420 through which the pet enters and exits. The hood 4 has a pair of side wall portions 421, 422 that are arranged facing each other on both sides of the width of the opening 420 and extend in the front-to-back direction, an upper wall portion 423 that is arranged above the opening 420 so as to span the pair of side wall portions 421, 422, a lower wall portion 470 that is arranged below the opening 420, and side wall guide portions 451, 452 that extend rearward and inward in the width direction so as to fold back from the front end portions 429 of the pair of side wall portions 421, 422, and a portion of the area of ​​the opening 420 is partitioned by the rear end portions 451a, 452a of the side wall guide portions 451, 452.

Description

[Technical Field]

[0001] One aspect of the present invention relates to a system toilet for pets. [Background technology]

[0002] A known pet toilet system includes an excretion container that contains litter and has a liquid-permeable bottom, a tray that is disposed below the excretion container and contains an absorbent sheet that absorbs urine that has permeated the litter, a lower container that holds the tray, and an upper container that is disposed above the excretion container (see, for example, Patent Document 1). One such upper container is a hood cover that is disposed to cover an opening above the excretion container. The hood cover has an opening in its front portion through which pets can enter and exit. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-78412 Summary of the Invention [Problem to be solved by the invention]

[0004] In a pet system toilet equipped with a hood cover, the pet's entrance is limited to the opening in the front of the hood cover. When a pet tries to enter the toilet through this opening, its body may strike the side or upper wall that defines the opening, resulting in injury. For example, a non-system pet toilet with a hood cover is known that does not have a liquid-permeable bottom and uses clumping litter. However, in such a toilet, if the lower container is not filled with a large amount of litter (e.g., enough to fill 5 cm (40%) of the lower container), the pet may strike its abdomen against the lower wall when entering through the opening, resulting in injury. Even if the litter is filled to a height of 5 cm (40%), the clumping litter is removed as the pet urinates, gradually reducing the litter height, increasing the likelihood of the pet hitting its abdomen when entering.

[0005] One aspect of the present invention has been made in view of the above circumstances, and relates to a system toilet for pets that allows pets to enter and exit without injuring themselves. [Means for solving the problem]

[0006] A pet toilet system according to one aspect of the present invention comprises an excretion container that stores litter and has a liquid-permeable bottom surface, a tray that is positioned below the excretion container and stores an absorbent sheet that absorbs liquid that has permeated the bottom surface, a lower container that holds the tray, and an upper container that is positioned to cover the top of the excretion container and has an opening through which the pet can enter and exit.The upper container has a pair of side wall portions that are arranged opposite each other on both sides of the width of the opening and extend in the front-to-back direction, which is the depth direction of the upper container, an upper wall portion that is arranged above the opening so as to span the pair of side wall portions, a lower wall portion that is arranged below the opening, and side wall guide portions that extend rearward and inward in the width direction so as to fold back from the front ends of the pair of side wall portions, and a portion of the opening area is partitioned by the rear ends of the side wall guide portions.

[0007] In one aspect of the pet toilet system of the present invention, an upper container covering the top of the excretion container has an opening through which pets enter and exit. The upper container has a pair of side walls extending in the front-to-rear direction and facing each other across the width of the opening. The upper container has a pair of side walls, each extending in the front-to-rear direction and facing each other across the width of the opening. The front end of the side wall guide extends rearward and inward in the width direction, and the rear end of the side wall guide defines a portion of the opening. This pet toilet system is configured so that a pet entering the toilet from the side walls passes through the side wall guides and enters the toilet by aligning its body with the side wall guides. For example, in a configuration without side wall guides, a pet's body may strike the side wall when entering the toilet from the side wall, resulting in injury. In this regard, the pet toilet system of the present invention has a side wall guide extending rearward and inward in the width direction. This allows a pet to enter the toilet by aligning its body with the side wall guides, effectively preventing injury to the pet. As described above, the pet toilet system according to one aspect of the present invention allows pets to enter and exit the toilet without injuring themselves. Furthermore, in a configuration in which pets enter the toilet by aligning their bodies with the side wall guides, the pet can enter the toilet at an angle, eliminating the need to change the angle (switch) inside the toilet, which would be necessary if the pet were not entering the toilet at an angle, and providing a toilet space that is comfortable for pets. Furthermore, the presence of the side wall guides ensures that when the owner cleans the toilet, the owner's arms will hit the side wall guides rather than the side walls, preventing injury to the owner's arms.

[0008] In the pet toilet system, the side wall guide portion may be made of the same material as the side wall portion. This configuration makes it easy to form the side wall guide portion. In other words, it is easy to obtain a toilet that does not injure pets.

[0009] In the pet toilet system, the side wall guides may be separate from the side walls. This configuration allows for side wall guides made of the necessary materials to be installed in the necessary locations, depending on the characteristics of the pet. Furthermore, the side wall guides can be easily replaced.

[0010] In the pet toilet system, the angle between the side wall and the side wall guide may be an obtuse angle. This configuration allows the pet to enter the toilet by aligning its body with the side wall guide.

[0011] In the pet toilet system described above, the upper container may further include an upper wall guide portion extending downward from the lower end of the upper wall portion and a lower wall guide portion extending rearward from the upper end of the lower wall portion, and the side wall guide portion, upper wall guide portion, and lower wall guide portion may be formed continuously, and the opening area may be defined by the rear end of the side wall guide portion, the lower end of the upper wall guide portion, and the rear end of the lower wall guide portion. By providing the upper wall guide portion and the lower wall guide portion in this manner, even in the case of a pet entering the toilet from the upper wall side or the lower wall side (a pet whose head or tail reaches the upper wall side or the lower wall side), the upper wall guide portion or the lower wall guide portion will come into contact with the tail or the like of the pet, thereby appropriately preventing injury to the pet's body.

[0012] In the above-mentioned pet system toilet, the upper wall guide portion may be located further rearward than the lower wall guide portion in the front-to-rear direction. By offsetting the upper wall guide portion rearward in this way, when a pet enters through the opening, its body or tail is less likely to come into contact with the upper part of the opening (the upper wall guide portion), which more effectively prevents injury to the pet's body.

[0013] In the above-mentioned pet toilet system, the bottom of the excretion container may be located below the upper end of the opening. With this configuration, when the pet excretes with only the upper half of its body exposed through the opening, the bottom of the excretion container can be appropriately positioned in an area where the pet's urine falls.

[0014] In the pet toilet system described above, a first imaginary plane, which is an imaginary plane passing through the midpoint between the upper end of the opening and the rear end of the lower wall guide in the front-to-rear direction and is perpendicular to the front-to-rear direction, may face the opening above the center of the opening in the up-down direction. This configuration increases the area of ​​the side wall guide that defines the opening and is positioned forward, thereby increasing the area of ​​the side wall guide that the pet can rest against. This also makes it easier for the timing at which the pet rests its face against the side wall guide to coincide with the timing at which the pet rests its body against the side wall guide. This eliminates the problem of the pet's face hitting the guide before its body, as in conventional products. Instead, the pet's face and body come into contact with the guide at the same time, reducing the risk of injury to the pet.

[0015] In the above-mentioned pet toilet system, a second imaginary plane, which is an imaginary plane passing through the midpoint between the upper end of the opening and the front end of the lower wall in the front-to-rear direction and is perpendicular to the front-to-rear direction, may face the opening above the center of the opening in the up-down direction. This configuration increases the area of ​​the side wall guide that defines the opening and is positioned forward, thereby increasing the area of ​​the side wall guide that the pet can rest against. This also makes it easier for the timing at which the pet rests its face against the side wall guide to coincide with the timing at which the pet rests its body against the guide, eliminating the case where the pet's face hits the guide before its body, as in conventional products. Instead, the pet's face and body come into contact with the guide at the same time, reducing the risk of injury to the pet.

[0016] In the above-mentioned pet system toilet, the side wall portion extends from the portion connected to the lower wall portion to the portion connected to the upper wall portion, with its front end portion sloping backward, and the front end portion of the side wall portion may have an inflection point, with the rise angle from the lower wall portion to the inflection point being 30° to 90° and the rise angle from the inflection point to the upper wall portion being 60° to 90°. By making the rise angle of the side wall portion to the inflection point 30° or more, it is possible to properly guide a pet entering the toilet by fitting its body along the side wall guide portion. Furthermore, by making the angle of the side wall portion 90° or less, it is possible to make it easier for a pet to enter the toilet from the side of the side wall.

[0017] In the pet toilet system described above, the upper end of the opening may be located rearward of the midpoint between the center of the tray and the front end of the lower wall in the front-to-rear direction. In this configuration, the upper end of the opening is located far enough rearward that the pet owner can quickly detect dirt on the upper container, etc., without having to crouch down. Furthermore, the wider opening allows the pet owner to easily reach into the opening and clean the upper container. Furthermore, this configuration increases the area located forward of the sidewall guides that define the opening, thereby increasing the area on the sidewall guides where the pet can rest its body. This makes it easier for the timing at which the pet rests its face against the sidewall guides to coincide with the timing at which the pet rests its body. This eliminates the problem of the pet's face hitting the guides before its body, as in conventional toilet systems. Instead, the pet's face and body come into contact with the guides at the same time, reducing the risk of injury to the pet.

[0018] In the pet toilet system, the lower wall guide width, which is the length of the lower wall guide portion in the direction of extension toward the opening, may be greater than the side wall guide width, which is the length of the side wall guide portion in the direction of extension toward the opening, and the side wall guide width may be greater than the upper wall guide width, which is the length of the upper wall guide portion in the direction of extension toward the opening. By making the width of the lower wall guide wider in areas where the pet is more likely to rest its weight when entering, the pet can be properly guided and injury to the pet can be properly prevented. Specifically, by making the lower wall guide width greater than the upper wall guide width, the pet can easily place its legs on the lower wall guide portion and become stable when entering, and the narrow upper wall guide portion prevents the pet's head or tail from bumping into the guide.

[0019] In the pet toilet system, at least one of the side wall guide width, the bottom wall guide width, and the top wall guide width may not be constant. This configuration allows the width to be adjusted depending on the area so that the pet can easily fit its body along it, making it easier for the pet to enter the toilet.

[0020] In the pet toilet system, the angle between the upper wall and the upper wall guide may be an obtuse angle. This configuration allows the upper wall guide to properly guide the pet toward the opening. When the pet enters the toilet, for example, with its tail, it will make contact with the upper wall guide over a surface rather than a point, thereby preventing injury to the pet.

[0021] In the pet toilet system described above, the upper container may further have protrusions on the outer widthwise edges of the lower wall. With this configuration, when a pet enters the toilet from the left or right side of the opening (the outer widthwise edges), the protrusions can be used as steps for the pet's legs, making it easier for the pet to enter the toilet.

[0022] In the above-mentioned pet system toilet, the upper container may include a fixed hood disposed on the rear side, a movable hood disposed on the front side, and a pair of connecting portions that rotatably connect the movable hood to the fixed hood, the fixed hood having a pair of connecting portions extending forward from where the pair of connecting portions are provided and a first lower wall portion extending in the width direction so as to connect the front ends of the pair of connecting portions, the movable hood having a second lower wall portion disposed in front of the first lower wall portion, a lower wall guide portion disposed so as to overlap the first lower wall portion, and the second lower wall portion disposed in front of the first lower wall portion, thereby forming the second lower wall portion. The double-layered structure of the lower wall portion allows the lower wall portion to stably support the pet, making it easier for the pet to enter the toilet.

[0023] In the above-mentioned pet toilet system, the first lower wall portion may have an area that protrudes further toward the opening than the lower wall guide portion in a plan view when the lower wall guide portion is overlapping. This allows the first lower wall portion to properly support the lower wall guide portion when the pet puts its weight on the lower wall guide portion, preventing the lower wall guide portion from bending and causing the pet's legs to slip. Furthermore, because the lower wall guide portion is supported by the first lower wall portion, the pet can place its legs on the lower wall guide portion when facing the entrance to excrete stably. [Effects of the Invention]

[0024] According to the pet toilet system according to one aspect of the present invention, pets can enter and exit without injuring themselves. [Brief explanation of the drawings]

[0025] [Figure 1] FIG. 1 is a perspective view of the system pet toilet according to this embodiment in a closed state. [Figure 2] FIG. 2 is a perspective view of the system pet toilet according to this embodiment in an open state. [Figure 3] FIG. 3 is an exploded perspective view of the pet toilet system shown in FIG. [Figure 4] FIG. 4 is a front view of the pet toilet system shown in FIG. [Figure 5] FIG. 5 is a side view of the pet toilet system shown in FIG. [Figure 6] FIG. 6 is a plan view of the pet toilet system shown in FIG. [Figure 7] FIG. 7 is a front view of a system pet toilet according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0026] The pet toilet system according to the embodiment of the present invention will be described in detail below with reference to the drawings. In each drawing, the same or corresponding parts are designated by the same reference numerals, and duplicate explanations will be omitted. Note that the drawings are schematic, and the dimensional ratios and the like may differ from those of the actual product.

[0027] FIG. 1 is a perspective view of the pet system toilet 1 according to this embodiment in a closed state (details will be described later). FIG. 2 is a perspective view of the pet system toilet 1 according to this embodiment in an open state (details will be described later). FIG. 3 is an exploded perspective view of the pet system toilet 1 shown in FIG. 1. The pet system toilet 1 according to this embodiment is a system toilet for the excretion of, for example, a pet cat. The pet system toilet of the present invention may also be a system toilet for the excretion of pets other than cats.

[0028] As shown in Figures 1 to 3, the pet system toilet 1 includes an excretion container 2, a lower container 3, a hood 4 (upper container), and a tray 5. The "closed state" shown in Figure 1 is a state in which the hood 4 is closed, and the "open state" shown in Figure 2 is a state in which the hood 4 is open (details will be described later).

[0029] In the following, the up-down direction of the pet toilet system 1 may be referred to as the "up-down direction," the depth direction, which is the longitudinal direction, as the "front-to-back direction," and the direction perpendicular to the up-down direction and the front-to-back direction as the "width direction." In the "up-to-down direction," the direction toward the hood 4 as viewed from the lower container 3 will be referred to as the "top," and the direction toward the lower container 3 as viewed from the hood 4 will be referred to as the "bottom." In addition, in the "front-to-back direction," the direction toward the movable hood 42 (details will be described later) as viewed from the fixed hood 41 (details will be described later) of the hood 4 shown in FIG. 1 will be referred to as the "front," and the direction toward the fixed hood 41 as viewed from the movable hood 42 shown in FIG. 1 will be referred to as the "rear."

[0030] The excretion container 2 is a container that contains litter (not shown). The excretion container 2 has a liquid-permeable bottom surface 21 and wall surfaces 22. Litter is a granular material that can absorb or pass through liquids such as urine. Litter is made of, for example, bentonite or water-repellent coated wood or paper that can cover feces and absorb liquid, or zeolite, silica gel, minerals, or the like that have deodorizing properties, molded into a roughly spherical shape with a diameter of several millimeters to several centimeters, and any known type of litter may be used. Note that if clumping litter is used as litter, the liquid-permeable bottom surface 21 may become clogged, so it is preferable not to use clumping litter in this pet toilet system 1. Litter is placed on the bottom surface 21.

[0031] The bottom surface portion 21 is a plate-like member with slat-like bars formed thereon and regular gaps between the bars. The bottom surface portion 21 is formed in a generally rectangular shape in a plan view. The wall surfaces 22 are portions formed to rise upward from the periphery of the bottom surface portion 21. That is, the wall surfaces 22 are formed to rise upward from both ends of the bottom surface portion 21 in the front-rear direction and both ends in the width direction. Note that the shape of the bottom surface portion 21 in a plan view may be other than rectangular as long as it can accommodate litter. Pet waste passes through the litter, passes through the gaps in the bottom surface portion 21 formed by the slat-like bars, and falls into the lower container 3 (more specifically, the tray 5 held in the lower container 3) located below the waste container 2. The waste container 2 is formed from, for example, a resin such as plastic, but is not limited to this.

[0032] The tray 5 is disposed below the waste container 2 and contains an absorbent sheet (not shown) that absorbs liquid (excrement) that has permeated the bottom surface 21. The tray 5 is formed with a tray handle 51 on the front side, allowing the user to place their hand on it and pull it forward. The tray handle 51 may be formed not only on the front side of the tray 5 but also on the rear side. In this case, the tray 5 is symmetrical from front to back. Since the tray 5 is symmetrical from front to back and has the tray handle 51 on both the front and rear sides, the tray 5 can be pulled out via the tray handle 51 even when the tray 5 is reversed. The area of ​​the absorbent sheet that absorbs liquid is determined to some extent, but by reversing the tray 5, the orientation of the absorbent sheet can be changed, allowing the absorbent sheet to absorb liquid in an area different from the area that has already absorbed liquid. By reversing the tray 5 in this way, a single absorbent sheet can be used to its full potential. The tray 5 is formed slightly smaller than the lower container 3 so that it can be accommodated inside the lower container 3 and swing. In this embodiment, the tray 5 is pulled out horizontally, but is not limited to this and may be pulled out obliquely upward, for example.

[0033] The lower container 3 is a container that holds the tray 5. The tray 5 is accommodated in the lower container 3 so that it can be pulled out and swung inside the lower container 3. As shown in FIG. 3, the lower container 3 is configured to include a bottom surface 31 and wall surfaces 32, 33, 34, and 35. The bottom surface 31 is the portion that faces the installation surface on which the pet system toilet 1 is installed. The bottom surface 31 is formed in a rectangular shape when viewed from above. The center portion of the bottom surface 31 may be open.

[0034] The wall surface 32 is a portion formed to rise upward from the front end of the bottom surface portion 31. An opening 320 for pulling out the tray 5 is formed in the wall surface 32. The wall surface 33 is a portion formed to rise upward from the rear end of the bottom surface portion 31. The wall surfaces 34 and 35 are portions formed to rise upward from both widthwise ends of the bottom surface portion 31. The wall surfaces 32, 33, 34, and 35 are formed continuously, and the entire periphery of the bottom surface portion 31 is surrounded by the wall surfaces 32, 33, 34, and 35. The wall surface 22 of the excrement container 2 is fitted to the upper ends of the wall surfaces 32, 33, 34, and 35. In addition, a fixed hood 41 of the hood 4 is attached so as to cover the upper ends of the wall surfaces 32, 33, 34, and 35 (details will be described later). At the center and upper end of the wall surfaces 34, 35 in the front-rear direction, connecting portions 300, 300 to be connected to hooks 419 of the fixed hood 41 are provided (details will be described later).

[0035] The hood 4 is positioned to cover the upper part of the excreta container 2, and has an opening 420 through which a pet can enter and exit. The hood 4 includes a fixed hood 41, a movable hood 42, and a pair of connecting portions 43, 43. The fixed hood 41 is positioned to cover the upper part of the rear side of the excreta container 2. The movable hood 42 is positioned to cover the upper part of the front side of the excreta container 2 in the closed state shown in FIG. 1 .

[0036] The fixed hood 41 and the movable hood 42 have an overlapping portion 45 (see FIG. 1) near the center of the excreta container 2 in the front-to-rear direction. A pair of connecting portions 43, 43 that rotatably connect the movable hood 42 to the fixed hood 41 are arranged at the lower end of the overlapping portion 45. The pair of connecting portions 43, 43 extend inward from both end sides in the width direction to penetrate the movable hood 42 and the fixed hood 41, and rotatably connect the movable hood 42 to the fixed hood 41. Note that the movable hood 42 is not limited to being rotatable, and may be shaped so as to slide while in contact with the fixed hood 41.

[0037] The closed state is a state in which the movable hood 42 is positioned to cover the upper front side of the excreta container, as shown in Fig. 1. The open state is a state in which the movable hood 42 is positioned at the rear (towards the fixed hood 41), as shown in Fig. 2. The movable hood 42 can be switched between the open state and the closed state by rotating around a pair of connecting parts 43, 43 as an axis. Note that, because the movable hood 42 rotates and moves on the outer surface of the fixed hood 41, the fixed hood 41 is slightly smaller in size than the movable hood 42.

[0038] 3, the fixed hood 41 includes an attachment portion 410 and a hood portion 418. The attachment portion 410 is attached to the upper end portions of the wall surfaces 32, 33, 34, and 35 of the lower container 3. The attachment portion 410 includes a rear attachment portion 411, a pair of connecting portions 412, 412, and a lower wall first portion 413.

[0039] The rear mounting portion 411 is a portion that is attached to the upper end of the rear portion of the wall surfaces 34, 35 and the upper end of the wall surface 33. The rear portion of the wall surfaces 34, 35 is, for example, a portion that is rearward of the center in the front-to-rear direction. The positions of the front end portions of the rear mounting portion 411 on the wall surface 34 side and the wall surface 35 side in the front-to-rear direction substantially coincide with the positions at which the pair of connecting portions 43, 43 are provided. Hooks 419, 419 extending downward are provided at the front end portion of the portion of the rear mounting portion 411 that is attached to the wall surfaces 34, 35. The hooks 419, 419 are respectively connected to the connecting portions 300 of the wall surfaces 34, 35, whereby the fixed hood 41 is attached and fixed to the lower container 3.

[0040] The pair of connecting portions 412, 412 extend forward from the front end portion (i.e., the location where the pair of connecting portions 43, 43 are provided in the front-rear direction) of the rear mounting portion 411 that is attached to the wall surfaces 34, 35. The pair of connecting portions 412, 412 are attached to the upper end portions of the front portions of the wall surfaces 34, 35.

[0041] The lower wall first portion 413 extends in the width direction so as to connect the front ends of the pair of connecting portions 412, 412. The lower wall first portion 413 is attached to the upper end of the wall surface 32. The lower wall first portion 413 includes a first portion 414 that extends in the vertical direction along the front portion of the wall surface 32 and also in the width direction, and a second portion 415 that extends rearward from the upper end of the first portion 414 and also in the width direction. In the closed state, as shown in FIG. 1, a lower wall guide portion 454 (described in detail below) of the movable hood 42 is arranged to overlap the lower wall first portion 413. More specifically, the lower wall guide portion 454 is arranged to overlap the second portion 415 of the lower wall first portion 413, and a lower wall second portion 424 (described in detail below) of the movable hood 42 is arranged in front of the first portion 414 of the lower wall first portion 413.

[0042] Returning to FIG. 3, the hood portion 418 is a hood that covers the upper rear side of the excreta container 2. The hood portion 418 rises upward from substantially the entire rear attachment portion 411 and covers the upper rear side of the excreta container 2. The upper surface of the hood portion 418 is formed as a substantially arcuate surface that is curved from the front end side to the rear end side. Through holes 418x, through which the pair of connecting portions 43, 43 pass, are formed at the front ends of both side surfaces of the hood portion 418. The positions of the through holes 418x in the front-to-rear direction substantially coincide with the positions of the hooks 419.

[0043] The movable hood 42 is configured to switch between a closed state (see FIG. 1) and an open state (see FIG. 2) by rotating about a pair of connecting portions 43, 43. The detailed configuration of the movable hood 42 will be described with reference to FIGS. 4 to 6. FIG. 4 is a front view of the pet system toilet 1 in a closed state. FIG. 5 is a side view of the pet system toilet 1 in a closed state. FIG. 6 is a plan view of the pet system toilet 1 in a closed state.

[0044] Movable hood 42 has an opening 420 formed in the front thereof for allowing a pet to enter and exit. Movable hood 42 is configured to include a pair of side wall portions 421, 422, an upper wall portion 423, a second lower wall portion 424, a protrusion 425, side wall guide portions 451, 452, an upper wall guide portion 453, and a lower wall guide portion 454. These components included in movable hood 42 are integrally formed from the same member.

[0045] The pair of side walls 421, 422 are provided facing each other at both widthwise ends of the opening 420 and extend in the front-to-rear direction. As shown in Figures 4 and 6, the side walls 421, 422 are formed with curved surfaces that are curved so as to widen outward in the widthwise direction from their front end side toward their rear end side. A through-hole 428 (see Figure 3) through which the pair of connecting portions 43, 43 pass is formed in the rear end and lower end of the side walls 421, 422.

[0046] As shown in Fig. 5, the side wall portions 421, 422 extend such that their front end portions 429 are inclined rearward from a portion continuous with the lower-wall second portion 424 toward a portion continuous with the upper wall portion 423. The front end portions 429 of the side wall portions 421, 422 have an inflection point IP as shown in Fig. 5, and the rise angle α from the lower-wall second portion 424 to the inflection point IP is, for example, 30° to 90°, and may be, for example, 60° to 80°, e.g., 60°. The rise angle β from the inflection point IP to the upper wall portion 423 is, for example, 60° to 90°, and may be, for example, 60°. The position of the inflection point IP may preferably be a position corresponding to two central regions when the opening 420 is vertically divided into four, and more preferably a position corresponding to the upper region of the two central regions. If the inflection point IP is positioned too low, the guide portions of the side walls may be configured to be short and stretched at a low position, which may prevent them from fully fulfilling their guiding role. In other words, if the guide portions are positioned too low, the pet may not be able to properly place its body against them. Furthermore, if the inflection point IP is positioned too high, the side walls 421, 422 will not be configured to slope backward on the entrance side, which may make it difficult for the pet to enter the toilet. In this regard, by positioning the inflection point IP at the center in the vertical direction as described above, the pet can be properly guided and the pet can easily enter the toilet.

[0047] The upper wall portion 423 is a portion provided above the opening portion 420 so as to bridge the pair of side wall portions 421, 422. As shown in Fig. 5, the upper wall portion 423 is formed of a substantially arcuate surface that is a curved surface that curves from its front end side toward its rear end side.

[0048] The lower-wall second portion 424 is provided below the opening 420. The lower-wall second portion 424 is a portion that extends in the vertical direction and in the width direction along the front surface portion of the lower-wall first portion 413 in the closed state. The lower-wall second portion 424 is continuous with the pair of side wall portions 421, 422 at both ends in the width direction. As described above, in the closed state, the lower-wall second portion 424 is disposed in front of the lower-wall first portion 413. By disposing the lower-wall second portion 424 in front of the lower-wall first portion 413, the lower-wall portion 470 is formed by the lower-wall first portion 413 and the lower-wall second portion 424.

[0049] As shown in FIG. 3 , the protrusion 425 is provided on the outer edge of the lower wall second portion 424 in the width direction, constituting the lower wall portion 470, and is a portion that protrudes outward from the lower wall second portion 424. More specifically, the protrusion 425 is provided at the lower end of the lower wall second portion 424 at a location continuous with the pair of side wall portions 421, 422, and protrudes outward from the lower wall second portion 424 and the side wall portion 421 (or the side wall portion 422). The protrusion 425 is a portion that is grasped by a user when rotating the movable hood 42, for example, to switch from a closed state to an open state. That is, when the user lifts the protrusion 425, the movable hood 42 rotates and switches from the closed state to the open state. The protrusion 425 may also be used as a step on which a pet can rest its legs when entering the toilet from the left or right side (the outer edges in the width direction) of the opening 420. Furthermore, when the movable hood 42 is held in the open state, the toilet can be used as a system toilet with a wide opening. In this case, it is an ideal configuration for cats who want to have their view blocked when urinating, but who also want a sense of openness when entering. Also, even if it was previously used in a closed position, it can be kept open depending on the cat's condition, such as in the case of obese cats, elderly cats, or disabled cats, and can be used in the optimal configuration.

[0050] As described above, the front end portions 429 of the side wall portions 421, 422 extend in a slant rearward from the portion connecting to the second lower wall portion 424 toward the portion connecting to the upper wall portion 423 (see FIG. 5 ). As a result, as shown in FIG. 1 and other figures, the opening 420 is formed so that its upper end is positioned further rearward. As shown in FIG. 6 , the bottom surface portion 21 of the excreta container 2 is located below the upper end portion 420a of the opening 420. The tray 5 (more specifically, the recessed portion of the tray 5 other than the tray handle portion 51) is located below the upper end portion 420a of the opening 420, and an absorbent sheet or urination member (such as a urination tray) may be present therein. Furthermore, as shown in FIG. 6 , the upper end portion 420a of the opening 420 is located rearward of the midpoint CP between the center position TC of the tray 5 in the front-rear direction and the front end portion 471 of the lower wall portion 470.

[0051] As shown in FIG. 1, the side wall guide portions 451, 452 are portions that extend rearward and inward in the width direction from the front end portions 429 of the pair of side wall portions 421, 422 in a folded-back manner. That is, the side wall guide portion 451 extends in a folded-back manner from the front end portion 429 of the side wall portion 421, and the side wall guide portion 452 extends in a folded-back manner from the front end portion 429 of the side wall portion 422. As shown in FIG. 4, a partial region of the opening 420, specifically, regions on both widthwise end sides of the opening 420, are defined by the rear end portions 451a of the side wall guide portion 451 and the rear end portions 452a of the side wall guide portion 452. That is, the entire region sandwiched between the rear end portions 451a of the side wall guide portion 451 and the rear end portions 452a of the side wall guide portion 452 is defined as the region of the opening 420. The angle between the side wall portion 421 and the side wall guide portion 451, and the angle between the side wall portion 422 and the side wall guide portion 452 are both obtuse angles, for example, approximately 100° to 125°. The widths of the side wall guide portions 451, 452 (the lengths of the side wall guide portions 451, 452 in the direction in which they extend toward the opening 420) are not constant, and may be relatively larger on the side closer to the lower wall guide portion 454 and relatively smaller on the side closer to the upper wall guide portion 453. The widths of the side wall guide portions 451, 452 are, for example, approximately 27 mm to 43 mm.

[0052] The upper wall guide portion 453 extends downward from the lower end 423a of the upper wall portion 423. The upper wall guide portion 453 is formed continuously with the side wall guide portions 451, 452. As shown in FIG. 4, the lower end 453a of the upper wall guide portion 453 defines a portion of the opening 420, specifically, an upper region of the opening 420. The upper wall guide portion 453 extends downward at an angle different from the curve of the upper wall portion 423, so that the lower end 423a of the upper wall portion 423 is an inflection point. The angle formed between the upper wall portion 423 and the upper wall guide portion 453 is an obtuse angle, for example, approximately 100° to 125°. The width of the upper wall guide portion 453 (the length of the upper wall guide portion 453 in the extension direction toward the opening 420) is not constant; for example, it may be relatively small at the center in the width direction and relatively large at both ends in the width direction. The width of the upper wall guide portion 453 is, for example, about 25 mm to 27 mm. As shown in Fig. 6, the upper wall guide portion 453 is located rearward of the lower wall guide portion 454 in the front-rear direction.

[0053] As shown in FIG. 6, lower wall guide portion 454 is a portion that extends rearward from upper end portion 424a of lower wall second portion 424 that constitutes lower wall portion 470. Lower wall guide portion 454 extends rearward without any incline (i.e., approximately horizontally) toward opening 420. This makes it easier for a pet entering through opening 420 to place its legs on lower wall guide portion 454, facilitating entry into the toilet. Furthermore, for example, if lower wall guide portion 454 were inclined downward in a direction away from opening 420, there is a risk that sand that falls from a pet's legs onto lower wall guide portion 454 would roll onto the floor outside the toilet; however, by making lower wall guide portion 454 approximately horizontal as described above, this type of situation can be prevented. Furthermore, when the owner removes the hood 4 from the lower container 3 and holds it upside down, the lower wall guide portion 454 is approximately horizontal, which prevents urine droplets and dust adhering to the back of the hood 4 from falling onto the floor.

[0054] The bottom wall guide portion 454 extends linearly in the width direction and is formed continuously with the side wall guide portions 451, 452. As shown in FIG. 6, a rear end portion 454a of the bottom wall guide portion 454 defines a portion of the opening 420, specifically a lower portion of the opening 420. The angle formed between the bottom wall second portion 424 and the bottom wall guide portion 454 is an obtuse angle, for example, approximately 95° to 100°. The angle formed between the bottom wall second portion 424 and the bottom wall guide portion 454 does not have to be an obtuse angle. The width of the bottom wall guide portion 454 (the length of the bottom wall guide portion 454 in the direction of extension toward the opening 420) is not constant, and may be relatively large at the center in the width direction and relatively small at both ends in the width direction. The width of the bottom wall guide portion 454 is, for example, approximately 43 mm to 50 mm. In this way, the width of the lower wall guide portion 454 may be greater than the width of the side wall guide portions 451 and 452 , and the width of the side wall guide portions 451 and 452 may be greater than the width of the upper wall guide portion 453 .

[0055] 6, the bottom wall guide portion 454 is disposed above the second portion 415 of the bottom wall first portion 413 so as to overlap with the second portion 415 in the closed state. Then, in a state in which the bottom wall guide portion 454 overlaps with the second portion 415 of the bottom wall first portion 413 (a state in which the second portion 415 is positioned below the bottom wall guide portion 454), the second portion 415 of the bottom wall first portion 413 has a region 415a that protrudes further toward the opening 420 than the bottom wall guide portion 454 in the plan view shown in FIG. The protruding region 415a is provided on both end sides of the second portion 415 in the width direction.

[0056] 4, the area of ​​the opening 420 is defined by the rear ends 451a and 452a of the side wall guide portions 451 and 452, the lower end 453a of the upper wall guide portion 453, and the rear end 454a of the lower wall guide portion 454. In other words, the area surrounded by the rear ends 451a and 452a of the side wall guide portions 451 and 452, the lower end 453a of the upper wall guide portion 453, and the rear end 454a of the lower wall guide portion 454 is the opening 420.

[0057] As described above, the upper wall guide portion 453 is located rearward of the lower wall guide portion 454 in the front-rear direction (see FIG. 6). The front end portions 429 of the side wall guide portions 451, 452, which extend to connect the lower wall guide portion 454 and the upper wall guide portion 453, have a relatively large area located forward (see FIG. 5). The positional relationship of each portion, which illustrates this, will be described below. For example, as shown in FIG. 6, consider a first imaginary plane 801, which is an imaginary plane passing through the midpoint between the upper end portion 420a of the opening 420 and the rear end portion 454a of the lower wall guide portion 454 in the front-rear direction and is perpendicular to the front-rear direction. This first imaginary plane 801 faces the opening 420 above the center of the opening 420 in the up-down direction. That is, as shown in FIG. 4, a first contact portion 801x where the first imaginary plane 801 faces (contacts) the opening 420 is located above a center line 900 passing through the center of the opening 420 in the up-down direction. 6, for example, consider a second imaginary plane 802 that is an imaginary plane that passes through the midpoint between the upper end 420a of the opening 420 and the front end 471 of the lower wall portion 470 in the front-rear direction and is perpendicular to the front-rear direction. Such second imaginary plane 802 faces the opening 420 above the center of the opening 420 in the up-down direction. That is, as shown in FIG. 4, a second contact portion 802x where the second imaginary plane 802 faces (contacts) the opening 420 is located above a center line 900 that passes through the center of the opening 420 in the up-down direction.

[0058] Next, the effects of the pet toilet system 1 according to this embodiment will be described.

[0059] The pet toilet system 1 according to this embodiment includes an excretion container 2 that stores litter and has a liquid-permeable bottom surface 21, a tray 5 that is disposed below the excretion container 2 and stores an absorbent sheet that absorbs liquid that has permeated the bottom surface 21, a lower container 3 that holds the tray 5, and a hood 4 that is disposed so as to cover the upper part of the excretion container 2 and has an opening 420 through which pets enter and exit. The hoods 4 are disposed on both sides of the opening 420 in the width direction so as to face each other, and are spaced apart from each other in front. The opening 420 has a pair of side wall portions 421, 422 extending rearward, an upper wall portion 423 provided above the opening 420 so as to span the pair of side wall portions 421, 422, a lower wall portion 470 provided below the opening 420, and side wall guide portions 451, 452 extending rearward and inward in the width direction so as to fold back from the front end portions 429 of the pair of side wall portions 421, 422, and a portion of the area of ​​the opening 420 is partitioned by the rear end portions 451a, 452a of the side wall guide portions 451, 452.

[0060] In the pet toilet system 1 according to this embodiment, an opening 420 through which pets enter and exit is formed in the hood 4 that covers the top of the excreta container 2. The hood 4 is provided with side wall guides 451, 452 that fold back from the front end 429 of a pair of side wall sections 421, 422 that extend in the front-to-rear direction and face each other across the width of the opening 420, and a portion of the opening 420 is defined by rear end sections 451a, 452a of the side wall guide sections 451, 452. In this type of pet toilet system 1, the path from the pair of side wall sections 421, 422 to the opening 420 passes through the side wall guide sections 451, 452, so that a pet entering the toilet from the side wall sections 421, 422 will fit its body along the side wall guide sections 451, 452 as it enters the toilet. For example, in a configuration without side wall guides 451, 452, a pet's body may hit the side wall when entering the toilet from the side wall, resulting in injury. In this regard, the pet toilet system 1 according to this embodiment is provided with side wall guides 451, 452 that extend rearward and inward in the width direction. This allows the pet to enter the toilet by aligning its body against the side wall guides 451, 452, effectively preventing injury to the pet. As described above, the pet toilet system 1 according to this embodiment allows the pet to enter and exit without injuring itself. Furthermore, in a configuration in which the pet enters the toilet by aligning its body against the side wall guides 451, 452, the pet can enter the toilet at an angle, eliminating the need to change the angle (switch) inside the toilet, which would be necessary if the pet were not entering the toilet at an angle. This provides a toilet space that is comfortable for the pet. Furthermore, because of the presence of side wall guide portions 451, 452, when the owner puts their arms inside the toilet to clean the inside of the toilet, their arms will come into contact with the side wall guide portions 451, 452 rather than the side wall portions 421, 422, thereby preventing the owner's arms from getting injured.

[0061] In the above-described pet system toilet 1, the side wall guides 451, 452 may be configured from the same material as the side walls 421, 422. With this configuration, the side wall guides 451, 452 can be easily formed. In other words, a toilet that does not injure pets can be easily obtained.

[0062] In the above-described pet system toilet 1, the angle formed between the side walls 421, 422 and the side wall guides 451, 452 may be an obtuse angle. This configuration appropriately realizes a structure that allows the pet to enter the toilet by aligning its body with the side wall guides 451, 452.

[0063] In the above-mentioned pet system toilet 1, the hood 4 further has an upper wall guide portion 453 extending downward from the lower end portion 423a of the upper wall portion 423, and a lower wall guide portion 454 extending rearward from the upper end portion 424a of the lower wall second portion 424 that constitutes the lower wall portion 470, and the side wall guide portions 451, 452, the upper wall guide portion 453, and the lower wall guide portion 454 are formed continuously, and the area of ​​the opening 420 may be defined by the rear end portions 451a, 452a of the side wall guide portions 451, 452, the lower end portion 453a of the upper wall guide portion 453, and the rear end portion 454a of the lower wall guide portion 454. In this way, by providing the upper wall guide portion 453 and the lower wall guide portion 454, even in the case of a pet entering the toilet from the upper wall portion 423 side or the lower wall second portion 424 side (a pet whose head or tail, etc. reaches the upper wall portion 423 or the lower wall second portion 424), the upper wall guide portion 453 or the lower wall guide portion 454 will come into contact with the pet's tail, etc., thereby appropriately preventing injury to the pet's body.

[0064] In the pet system toilet 1, the upper wall guide portion 453 may be located further rearward in the front-to-rear direction than the lower wall guide portion 454. By offsetting the upper wall guide portion 453 rearward in this way, when the pet enters through the opening 420, the pet's body or tail is less likely to come into contact with the upper wall guide portion 453 at the top of the opening 430, more effectively preventing injury to the pet's body.

[0065] In the pet toilet system 1, the bottom surface 21 of the excretion container 2 may be located below the upper end 420a of the opening 420. With this configuration, when a pet excretes with only the upper half of its body exposed through the opening 420, the bottom surface 21 of the excretion container 2 can be appropriately positioned in an area where the pet's urine falls.

[0066] In the pet toilet system 1, the first imaginary plane 801, which is an imaginary plane passing through the midpoint between the upper end 420a of the opening 420 and the rear end 454a of the lower wall guide 454 in the front-to-rear direction and is perpendicular to the front-to-rear direction, may face the opening 420 above the center of the opening 420 in the up-down direction. With this configuration, the area located on the front side of the side wall guides 451, 452 that define the opening 420 is increased, thereby increasing the area on the side wall guides 451, 452 that the pet can rest against. This makes it easier for the timing at which the pet rests its face against the side wall guides 451, 452 to coincide with the timing at which the pet rests its body against them. This eliminates the problem of the pet's face hitting the guides before its body, as in conventional products. Instead, the pet's face and body come into contact with the guides at the same time, reducing the risk of injury to the pet.

[0067] In the pet toilet system 1, the second imaginary plane 802, which is an imaginary plane passing through the midpoint between the upper end 420a of the opening 420 and the front end 471 of the lower wall 470 in the front-rear direction and is perpendicular to the front-rear direction, may face the opening 420 above the center of the opening 420 in the up-down direction. With this configuration, the area located on the front side of the side wall guides 451, 452 that define the opening 420 is increased, thereby increasing the area on the side wall guides 451, 452 that the pet can rest against. This makes it easier for the timing at which the pet rests its face against the side wall guides 451, 452 to coincide with the timing at which the pet rests its body against them. This eliminates the problem of the pet's face hitting the guides before its body, as in conventional products. Instead, the pet's face and body come into contact with the guides at the same time, reducing the risk of injury to the pet.

[0068] In the pet system toilet 1, the side walls 421, 422 extend from a point where they connect to the lower wall 470 to a point where they connect to the upper wall 423, with their front ends 429 sloping backward. The front ends 429 of the side walls 421, 422 may have an inflection point IP, with a rise angle α from the lower wall 470 to the inflection point IP of 30° or more and 90° or less, and a rise angle β from the inflection point IP to the upper wall 423 of 60° or more and 90° or less. Setting the rise angle α of the side walls 421, 422 to the inflection point IP to 30° or more allows for proper guidance of a pet entering the toilet by aligning its body with the side wall guides 451, 452. Setting the angle of the side walls 421, 422 to 90° or less makes it easier for a pet to enter the toilet from the side of the side walls 421, 422.

[0069] In the pet system toilet 1, the upper end 420a of the opening 420 may be located rearward of the midpoint CP between the center position TC of the tray 5 in the front-rear direction and the front end 471 of the lower wall portion 470. In this manner, in a configuration in which the upper end 420a of the opening 420 is located sufficiently rearward, the pet owner can quickly detect dirt on the hood 4, etc., without having to crouch down. Furthermore, since the opening 420 is wider, the pet owner can easily reach inside the opening 420 to clean the hood 4. Furthermore, with this configuration, the area located forward of the side wall guides 451, 452 that define the opening 420 is larger, thereby increasing the area of ​​the side wall guides 451, 452 that the pet can rest its body against. This makes it easier for the timing at which the pet places its face against the side wall guide portions 451, 452 and the timing at which it places its body against them to be the same, so that the pet's face will no longer hit the guide portion before its body as in conventional products, and the pet's face and body will come into contact with the guide portion at the same time, thereby preventing the pet from getting injured.

[0070] In the pet toilet system 1, the lower wall guide width, which is the length of the lower wall guide portion 454 in the direction in which it extends toward the opening 420, is greater than the side wall guide width, which is the length of the side wall guide portions 451, 452 in the direction in which they extend toward the opening 420, and the side wall guide width may be greater than the upper wall guide width, which is the length of the upper wall guide portion 453 in the direction in which it extends toward the opening 420. In this way, by making the width wider in areas that are more likely to come into contact with the pet when it enters, it is possible to properly guide the pet and properly prevent the pet from getting injured.

[0071] In the pet toilet system 1, at least one of the side wall guide width, bottom wall guide width, and top wall guide width does not have to be constant. This configuration makes it possible to adjust the width depending on the area so that the pet can easily fit its body along it, allowing the pet to enter the toilet more easily.

[0072] In the pet toilet system 1, the angle formed between the upper wall portion 423 and the upper wall guide portion 453 may be an obtuse angle. With this configuration, it is possible to realize a structure in which the upper wall guide portion 453 appropriately guides the pet toward the opening 420. When the pet enters the toilet, for example, when its tail makes contact, it will come into contact with the upper wall guide portion 453 as a whole rather than at a point, thereby appropriately preventing the pet from getting hurt.

[0073] In the pet toilet system 1, the hood 4 may further have a protrusion 425 on the outer widthwise edge of the lower wall 470. With this configuration, when a pet enters the toilet from the left or right side of the opening 420 (the outer widthwise edges), the protrusion 425 can be used as a step for the pet's legs, allowing the pet to enter the toilet more easily.

[0074] In the above-mentioned pet system toilet 1, the hood 4 is composed of a fixed hood 41 arranged on the rear side, a movable hood 42 arranged on the front side, and a pair of connecting portions 43, 43 that rotatably connect the movable hood 42 to the fixed hood 41, and the fixed hood 41 has a pair of connecting portions 412, 412 extending forward from the location where the pair of connecting portions 43, 43 are provided, and a lower wall first portion 413 extending in the width direction to connect the front ends of the pair of connecting portions 412, 412, and the movable hood 42 has a lower wall second portion 424 arranged in front of the lower wall first portion 413, and a lower wall portion 470 may be formed by arranging a lower wall guide portion 454 so as to overlap the lower wall first portion 413 and arranging the lower wall second portion 424 in front of the lower wall first portion 413. As the lower wall portion 470 has a double structure in this way, the pet can be stably supported by the lower wall portion 470, and the pet can enter the toilet more easily.

[0075] In the above-described pet toilet system 1, the lower-wall first portion 413 may have an area that, when viewed from above, projects further toward the opening 420 than the lower-wall guide portion 454 when the lower-wall first portion 413 is overlapping the lower-wall guide portion 454. This allows the lower-wall first portion 413 to appropriately support the lower-wall guide portion 454 when the pet puts its weight on the lower-wall guide portion 454, preventing the lower-wall guide portion 454 from bending and causing the pet's legs to slip. Furthermore, because the lower-wall first portion supports the lower-wall guide portion 454, the pet can place its legs on the lower-wall guide portion 454 when facing the entrance to excrete, thereby allowing the pet to excrete stably.

[0076] Although the present invention has been described above with reference to an embodiment, it is not limited to the above embodiment. For example, while the side wall guides 451, 452 have been described as being made of the same material as the side walls 421, 422, the present invention is not limited to this. FIG. 7 is a front view of a modified pet toilet system 1A. In the pet toilet system 1A shown in FIG. 7, the side wall guides 751, 752 are made of separate materials from the side walls 421, 422. More specifically, the pet toilet system 1A has an upper wall guide 753 and a lower wall guide 754. The side wall guides 751, 752, the upper wall guide 753, and the lower wall guide 754 are formed continuously, and the area of ​​the opening 420 is defined by the rear ends of the side wall guides 751, 752, the lower end of the upper wall guide 753, and the rear end of the lower wall guide 754. The side wall guides 751, 752, the upper wall guide 753, and the lower wall guide 754 are all made of the same material. That is, the side wall guides 751, 752, the upper wall guide 753, and the lower wall guide 754 are all made of separate materials from the side walls 421, 422, etc. The side wall guides 751, 752, the upper wall guide 753, and the lower wall guide 754 may be made of cushioning materials known in the art, such as plastic, urethane foam, a collection of foam beads, or a collection of fibers such as cotton. This configuration allows guides made of the necessary material to be provided in the necessary locations, depending on the characteristics of the pet, for example. Furthermore, the side wall guides, etc., can be easily replaced. [Explanation of symbols]

[0077] 1, 1A... pet system toilet, 2... excrement container, 3... lower container, 4... hood (upper container), 5... tray, 21... bottom portion, 41... fixed hood, 42... movable hood, 43, 43... connecting portion, 412, 412... connecting portion, 413... lower wall first portion, 420... opening, 420a... upper end portion, 421, 422... side wall portion, 423... upper wall portion, 423a... lower end portion, 424... lower wall second portion, 424 a...upper end, 425...protrusion, 429...front end, 451, 452...side wall guide portion, 451a, 452a...rear end, 453...upper wall guide portion, 453a...lower end, 454...lower wall guide portion, 454a...rear end, 470...lower wall portion, 471...front end, 751, 752...side wall guide portion, 753...upper wall guide portion, 754...lower wall guide portion, 801...first imaginary surface, 802...second imaginary surface.

Claims

1. an excrement container that contains litter and has a liquid-permeable bottom surface; a tray disposed below the excreta container and containing an absorbent sheet for absorbing liquid that has permeated the bottom surface; a lower container for holding the tray; an upper container arranged to cover the upper part of the excretion container and having an opening for pets to enter and exit; The upper container is a pair of side wall portions that are provided on both sides of the opening in the width direction so as to face each other and extend in the front-rear direction, which is the depth direction of the upper container; an upper wall portion that is provided above the opening so as to bridge between the pair of side wall portions; a lower wall portion that is provided below the opening; and side wall guide portions that extend rearward and inward in the width direction so as to fold back from front ends of the pair of side wall portions, a rear end of the sidewall guide portion defines a partial area of ​​the opening, The upper container is The housing further includes an upper wall guide portion extending downward from a lower end of the upper wall portion, and a lower wall guide portion extending rearward from an upper end of the lower wall portion, the side wall guide portion, the upper wall guide portion, and the lower wall guide portion are formed continuously, a rear end of the side wall guide portion, a lower end of the upper wall guide portion, and a rear end of the lower wall guide portion define an area of ​​the opening, the upper wall guide portion is located rearward of the lower wall guide portion in the front-rear direction, The upper end of the opening is located rearward of the midpoint between the center position of the tray and the front end of the lower wall portion in the front-to-rear direction.

2. The pet toilet system according to claim 1, wherein the side wall guide portion is made of the same material as the side wall portion.

3. The pet toilet system according to claim 1, wherein the side wall guide portion is formed as a separate member from the side wall portion.

4. The pet toilet system according to any one of claims 1 to 3, wherein the angle formed between the side wall portion and the side wall guide portion is an obtuse angle.

5. The pet toilet system according to any one of claims 1 to 4, wherein the bottom surface of the excretion container is located below an upper end of the opening.

6. A pet system toilet as described in any one of claims 1 to 5, wherein a first imaginary plane, which is an imaginary plane passing through the midpoint between the upper end of the opening in the front-to-back direction and the rear end of the lower wall guide portion and is perpendicular to the front-to-back direction, faces the opening above the center of the opening in the vertical direction.

7. A pet system toilet as described in claim 6, wherein a second imaginary plane, which is an imaginary plane passing through the midpoint between the upper end of the opening and the front end of the lower wall portion in the front-to-back direction and is perpendicular to the front-to-back direction, faces the opening above the center of the opening in the vertical direction.

8. the side wall portion extends from a portion continuous with the lower wall portion to a portion continuous with the upper wall portion such that a front end portion thereof is inclined rearward, The pet system toilet according to any one of claims 1 to 7, wherein the front end of the side wall portion has an inflection point, the rise angle from the lower wall portion to the inflection point is 30° or more and 90° or less, and the rise angle from the inflection point to the upper wall portion is 60° or more and 90° or less.

9. a bottom wall guide width, which is the length of the bottom wall guide portion in the extension direction toward the opening, is larger than a side wall guide width, which is the length of the side wall guide portion in the extension direction toward the opening, The pet system toilet according to any one of claims 1 to 8, wherein the side wall guide width is greater than an upper wall guide width, which is a length of the upper wall guide portion in the direction of extension toward the opening.

10. The pet toilet system according to claim 9, wherein at least one of the side wall guide width, the lower wall guide width, and the upper wall guide width is not constant.

11. The pet toilet system according to any one of claims 1 to 10, wherein the angle formed between the upper wall portion and the upper wall guide portion is an obtuse angle.

12. The pet toilet system according to any one of claims 1 to 11, wherein the upper container further has a protrusion on an outer edge of the lower wall in the width direction.

13. The upper container is The vehicle is configured to include a fixed hood disposed on the rear side, a movable hood disposed on the front side, and a pair of connecting parts that rotatably connect the movable hood to the fixed hood, the fixed hood has a pair of connecting portions extending forward from locations where the pair of connecting portions are provided, and a lower wall first portion extending in the width direction so as to connect front ends of the pair of connecting portions, the movable hood has a second lower wall portion disposed in front of the first lower wall portion, The pet system toilet according to any one of claims 1 to 12, wherein the lower wall guide portion is arranged to overlap the lower wall first portion, and the lower wall second portion is arranged in front of the lower wall first portion, thereby forming the lower wall portion.

14. The pet system toilet according to claim 13, wherein the first lower wall portion has an area that protrudes toward the opening side more than the lower wall guide portion when viewed in a plan view when the lower wall guide portion is overlapped.

Images