US-12616164-B2 - Pet toilet system

Abstract

A pet toilet system includes an excretion container, having a liquid-permeable bottom surface portion, that accommodates toilet sand, a tray, disposed below the excretion container, that accommodates an absorption sheet that absorbs liquid permeated through the liquid-permeable bottom surface portion, a lower container that holds the tray, and an upper container disposed above the excretion container. The upper container has a front wall portion having an enter/exit portion through which a pet enters and exits, a pair of side wall portions, facing each other on both sides in a width direction of the enter/exit portion, extending in a front-rear direction of the upper container, and a rear wall portion facing the enter/exit portion in the front-rear direction. The upper container includes an opening region having an opening portion above the liquid-permeable bottom surface portion.

Inventors

• Misato Nakatani
• Yasuhiro Sasano
• Shinya Kaneko

Assignees

• UNICHARM CORPORATION

Dates

Publication Date

20260505

Application Date

20250117

Priority Date

20220720

Claims (17)

1. 1 . A pet toilet system comprising: an excretion container, having a liquid-permeable bottom surface portion, that accommodates toilet sand; a tray, disposed below the excretion container, that accommodates an absorption sheet that absorbs liquid permeated through the liquid-permeable bottom surface portion; a lower container that holds the tray; and an upper container, disposed above the excretion container, having: a front wall portion having an enter/exit portion through which a pet enters and exits; a pair of side wall portions, facing each other in a width direction of the enter/exit portion, extending in a front-rear direction of the upper container; and a rear wall portion facing the enter/exit portion in the front-rear direction, wherein the upper container includes an opening region having an opening portion above the liquid-permeable bottom surface portion, the opening portion has a slit shape, the upper container further has an outer extension portion, disposed on a wall portion including the opening region, extending outward from the wall portion, and the outer extension portion is inclined upward toward an outer end part of the outer extension portion.
2. 2 . The pet toilet system according to claim 1 , wherein a wall portion of the upper container includes the opening region, and an area of the opening region is equal to or greater than 5% of an entirety of the liquid-permeable wall portion.
3. 3 . The pet toilet system according to claim 1 , wherein in the width direction, the opening portion has a length shorter than a length of the bottom surface portion.
4. 4 . The pet toilet system according to claim 1 , wherein the liquid-permeable bottom surface portion has bottom surface openings through which the liquid permeates, and an opening area of the opening portion is smaller than a sum of opening areas of the bottom surface openings.
5. 5 . The pet toilet system according to claim 1 , wherein in the width direction, a position of a center line of the opening region does not coincide a position of a center line of the liquid-permeable bottom surface portion.
6. 6 . The pet toilet system according to claim 1 , wherein the liquid-permeable bottom surface portion has rectangular bottom surface openings through which the liquid permeates, and the opening portion has a length in a vertical direction of the pet toilet system longer than a length of a short side of each of the rectangular bottom surface openings.
7. 7 . The pet toilet system according to claim 1 , wherein the liquid-permeable bottom surface portion has rectangular bottom surface openings through which the liquid permeates, and the opening portion has a length in a vertical direction of the pet toilet system shorter than a length of a long side of each of the rectangular bottom surface openings.
8. 8 . The pet toilet system according to claim 1 , wherein the outer extension portion is disposed below a lower end of the opening region.
9. 9 . The pet toilet system according to claim 1 , wherein the upper container further has an engagement portion, extending downward from a lower end of the outer extension portion, engaging with the liquid-permeable bottom surface portion, and the outer extension portion has an outward extension length shorter than a length of the engagement portion in a vertical direction of the pet toilet system.
10. 10 . A pet toilet system comprising: an excretion container, having a liquid-permeable bottom surface portion, that accommodates toilet sand; a tray, disposed below the excretion container, that accommodates an absorption sheet that absorbs liquid permeated through the liquid-permeable bottom surface portion; a lower container that holds the tray; and an upper container, disposed above the excretion container, having: a front wall portion having an enter/exit portion through which a pet enters and exits; a pair of side wall portions, facing each other in a width direction of the enter/exit portion, extending in a front-rear direction of the upper container; and a rear wall portion facing the enter/exit portion in the front-rear direction, wherein the upper container includes an opening region having an opening portion above the liquid-permeable bottom surface portion, the opening portion has a slit shape, the upper container further has an outer extension portion, disposed on a wall portion including the opening region, extending outward from the wall portion, and the outer extension portion has a guide groove along an extending direction of the outer extension portion.
11. 11 . The pet toilet system according to claim 1 , wherein the upper container further has an inner extension portion, disposed on the wall portion, extending inward from the wall portion.
12. 12 . A pet toilet system comprising: an excretion container, having a liquid-permeable bottom surface portion, that accommodates toilet sand; a tray, disposed below the excretion container, that accommodates an absorption sheet that absorbs liquid permeated through the liquid-permeable bottom surface portion; a lower container that holds the tray; and an upper container, disposed above the excretion container, having: a front wall portion having an enter/exit portion through which a pet enters and exits; a pair of side wall portions, facing each other in a width direction of the enter/exit portion, extending in a front-rear direction of the upper container; and a rear wall portion facing the enter/exit portion in the front-rear direction, wherein the upper container includes an opening region having an opening portion above the liquid-permeable bottom surface portion, the opening portion has a slit shape, the pet toilet system further comprises an external additive member, disposed outside the opening region, facing the opening region, and a surface of the external additive member has cover openings at predetermined intervals in a vertical direction of the pet toilet system.
13. 13 . The pet toilet system according to claim 12 , wherein the external additive member has: a cover wall surface, disposed below the cover openings, that is continuous with the cover openings in the vertical direction; a cover non-ventilation portion that extends upward from an upper end of the cover wall surface, covers a part of the cover openings, and has: a first cover part extending upward and inclining outward; and a second cover part that is continuous with an upper end of the first cover part and extends upward such that an outward inclination angle of the second cover part becomes smaller than an outward inclination angle of the first cover part.
14. 14 . The pet toilet system according to claim 12 , wherein the upper container further has: an upper container wall surface, disposed below the opening portion, that is continuous with the opening portion in the vertical direction; and an upper container non-ventilation portion, extending upward from an upper end of the upper container wall surface, that covers a part of the opening portion, and the upper container non-ventilation portion has: a first part extending upward and inclining outward; and a second part that is continuous with an upper end of the first part and extends upward such that an outward inclination angle of the second part becomes smaller than an outward inclination angle of the first part.
15. 15 . The pet toilet system according to claim 1 , wherein the upper container further has: an upper container wall surface, disposed below the opening portion, that is continuous with the opening portion in a vertical direction of the pet toilet system; and an upper container non-ventilation portion, extending upward from an upper end of the upper container wall surface, that covers a part of the opening portion.
16. 16 . The pet toilet system according to claim 15 , wherein the upper container non-ventilation portion has a first part extending upward and inclining outward.
17. 17 . The pet toilet system according to claim 16 , wherein the upper container non-ventilation portion further has a second part that is continuous with an upper end of the first part and extends upward such that an outward inclination angle of the second part becomes smaller than an outward inclination angle of the first part.

Description

BACKGROUND Technical Field The present invention relates to a pet toilet system. Discussion of the Background As a pet toilet system, there is known a configuration including an excretion container that accommodates toilet sand covering or solidifying feces, a tray that is disposed below the excretion container and accommodates an absorption sheet that absorbs urine having passed through the toilet sand, a lower container that holds the tray, and an upper container disposed above the excretion container (see, for example, Patent Literature 1). PATENT LITERATURE Patent Literature 1: Japanese Patent Publication No. 2020-22414 Here, in a state where the toilet sand is wet with urine or a state where feces are wet, a room may be filled with offensive odor. In order to dry feces and urine, it is conceivable to improve air permeability inside the toilet. However, for example, in a case where a hole is simply made in the toilet, liquid such as urine or powder may be scattered outside the toilet, and the room may get smelly. SUMMARY One or more embodiments provide a pet toilet system that can suppress such smelliness from offensive odor by excrement. A pet toilet system according to one or more embodiments includes: an excretion container configured to accommodate toilet sand and having a liquid-permeable bottom surface portion; a tray disposed below the excretion container and configured to accommodate an absorption sheet that absorbs liquid that has permeated through the bottom surface portion; a lower container configured to hold the tray; and an upper container disposed above the excretion container and having a front wall portion in which an enter/exit portion through which a pet enters and exits is formed, a pair of side wall portions provided so as to face each other on width-direction both sides of the enter/exit portion and extending in a front-rear direction, and a rear wall portion facing the enter/exit portion in the front-rear direction, and an opening region including one or a plurality of opening portions is formed in a region of the upper container above the bottom surface portion of the excretion container. In the pet toilet system according to one or more embodiments, the opening region including one or a plurality of opening portions is formed in the region of the upper container above the bottom surface portion of the excretion container. According to such a configuration, air permeability above the bottom surface portion where feces and urine are held is improved. This makes it easy to dry feces and urine held on the bottom surface portion, and it is possible to suppress generation of offensive odor inside the toilet as compared with a state where toilet sand is wet with urine and a state where feces are wet. In addition, since the opening portion is formed in the region of the upper container above the bottom surface portion, for example, liquid such as urine that has permeated through the bottom surface portion and flowed downward, and cat sand chips and powder (powder or the like) to which cats and feces adhere are less likely to scatter from the opening portion to the outside of the toilet. As a result, it is possible to suppress the outside of the toilet from smelling bad. As described above, according to the pet toilet system according to one or more embodiments, it is possible to suppress a room from being filled with offensive odor by excrement. The opening region may be formed with a slit-shaped opening portion. Although air passes through such a slit-shaped opening portion, liquid, powder, or the like hardly passes through the slit-shaped opening portion, so that it is possible to more appropriately suppress liquid such as urine, powder, or the like from scattering from the opening portion to the outside of the toilet. The opening portion may have a width-direction length longer than a vertical length. By making the width-direction length of the opening portion sufficiently long, it is possible to improve air permeability in a wide range in the width direction on the bottom surface portion, and air can be efficiently moved. This makes it possible to further suppress generation of offensive odor inside the toilet. Furthermore, it is conceivable that the above-described liquid, powder, or the like is scattered in a height direction (vertical direction) when the pet scrapes the sand. In this regard, by making the length in the vertical direction shorter than that in the width direction, it is possible to suppress liquid, powder, or the like from coming out of the toilet from the opening portion due to the pet scraping the sand described above. The opening portion may have a vertical length longer than a width-direction length. By making the vertical length of the opening portion sufficiently long, it is possible to improve air permeability in a wide range in the vertical direction, and air can be efficiently moved. For example, odor of urine is lighter than air and tends to stay in an up