US20170354302A1 - Nested Graduated Toilet Seats - Google Patents
Nested Graduated Toilet Seats Download PDFInfo
- Publication number
- US20170354302A1 US20170354302A1 US15/176,961 US201615176961A US2017354302A1 US 20170354302 A1 US20170354302 A1 US 20170354302A1 US 201615176961 A US201615176961 A US 201615176961A US 2017354302 A1 US2017354302 A1 US 2017354302A1
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- Prior art keywords
- seat
- toilet
- contour
- seats
- downward
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K13/00—Seats or covers for all kinds of closets
- A47K13/24—Parts or details not covered in, or of interest apart from, groups A47K13/02 - A47K13/22, e.g. devices imparting a swinging or vibrating motion to the seats
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K13/00—Seats or covers for all kinds of closets
- A47K13/005—Auxiliary or portable seats
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K13/00—Seats or covers for all kinds of closets
- A47K13/06—Auxiliary or portable seats for children
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K13/00—Seats or covers for all kinds of closets
- A47K13/12—Hinges
Definitions
- the present invention relates to the field of toilet seats, and more particularly to toilet seat assemblies comprising multiple toilet seats of different sizes.
- Standard sized toilet seats are designed to accommodate the body contours of an average adult. They are not well suited to small children, who often must support themselves with their arms to avoid falling through the seat opening. This problem makes the process of toilet training young children all the more difficult.
- tiered toilet seats in which a smaller seat rests on top of a larger seat, and the two seats are cooperatively hinged. But such tiered seat configurations tend to raise the overall height of the seat, making the seating of small children and infirm adults even more difficult. Moreover, the overlapping edges of tiered toilet seats tend to generate lateral movement of the seats when bearing bodily weight, thereby making seating more unstable and less comfortable.
- the cross-sectional profile of the standard toilet seat is typically flat to slightly convex, which is not optimal for stable seating. Smaller adults and children tend to fall inward on the seat, while larger adults slide outward. Aged and infirm adults often require assistance maintaining their seating on these seats, because they provide no lateral support.
- the terms “outer”, “outward” or “outwardly” refer to the horizontal direction toward the perimeter of the toilet bowl, while the terms “inner”, “inward” or “inwardly” refer to the horizontal direction toward the center of the toilet bowl.
- the terms “upper”, “upward” or “upwardly” refer to the vertical direction opposite the base of the toilet bowl, while the terms “down”, “downward” or “downwardly” refer to the vertical direction toward the base of the toilet bowl.
- the term “above” means relatively upward, while the term “below” means relatively downward.
- the term “top” refers to the most upward, while the term “bottom” refers to the most downward.
- inclining means upwardly curving, while the term “declining” means downwardly curving.
- the present invention addresses the foregoing problems by providing an assembly of cooperatively hinged nested toilet seats of sizes downwardly graduated from smaller to larger, from a smallest top seat to a largest bottom first seat. Each of the relatively smaller seats nests within a declining inner seat contour of a relatively larger seat below it.
- An extension of the declining inner seat contour of each seat defines a downward seat flange, which is configured to extend within the rim of the toilet bowl when the seat is lowered.
- the downward seat flange of the largest bottom first seat is configured to engage the inner perimeter of the toilet bowl rim when the seat is lowered, thereby defining a largest first seat opening.
- the downward seat flange of the next largest second seat above the largest bottom first seat is configured to nest within and engage the inner perimeter of the first seat opening when the seat is lowered, thereby defining a next largest second seat opening.
- each successively smaller third, fourth, fifth, etc., seat has a downward seat flange which is configured, when the seat is lowered, to nest within and engage the inner perimeter of the seat opening defined by the downward seat flange of the seat below it.
- each of the nested toilet seats comprises the downward seat flange, which transitions into the declining inner seat contour, which transitions into a middle seat contour, which in turn transitions into an outer seat contour.
- the middle seat contours are substantially convex, and the outer seat contours are declining.
- the middle seat contours are substantially concave, and the outer seat contours are inclining.
- FIG. 1A is a perspective view of the first embodiment of the present invention comprising a three-seat assembly, showing the lid lifted, the bottom seat lowered, and the two upper seats partially lifted, with the toilet in ghost view;
- FIG. 1B is a perspective view of first embodiment of the present invention, showing the lid lifted and all three seats lowered, with the toilet in ghost view;
- FIG. 2 is a cross-section view of the three seats depicted in FIG. 1B , taken along the line A-A, with the toilet bowl rim in ghost view;
- FIG. 3 is a perspective view of the second embodiment of the present invention, showing the lid lifted and all three seats lowered, with the toilet in ghost view;
- FIG. 4 is a cross-section view of the three seats depicted in FIG. 3 , taken along the line B-B, with the toilet bowl rim in ghost view;
- FIG. 5A is a perspective view of a toilet seat according to the second embodiment of the present invention.
- FIG. 5B is a side profile view of the second embodiment of the present invention, comprising a three-seat assembly, showing the lid and all three seats lowered, with the toilet in ghost view;
- FIG. 6 is a detail cutaway rear view of an exemplary composite hinge for the present invention.
- the first embodiment of the present invention is an assembly of three toilet seats 10 comprising a largest bottom first seat 11 , a mid-sized second seat 12 above and smaller than the first seat 11 , and a smallest third seat 13 , above and smaller than the second seat 12 .
- the assembly is cooperatively hinged 14 , so that each of the seats 11 12 13 and the seat lid 15 can be independently raised and lowered.
- FIG. 3 depicts the equivalent structures for the second embodiment of the present invention.
- each of the relatively smaller seats nests within a declining inner seat contour of the larger seat below it. Therefore, as shown in FIGS. 2 and 4 , the mid-sized second seat 12 nests within the declining inner seat contour of the largest first seat 16 , while the smallest third seat 13 nests within the declining inner seat contour of the mid-sized second seat 17 .
- the declining inner seat contour of the smallest third seat 18 rests atop the declining inner seat contour of the mid-sized second seat 17 .
- an extension of the declining inner seat contour of each seat defines a downward seat flange, which is configured to extend within the toilet bowl rim 19 when the seat is lowered.
- the downward seat flange of the largest first seat 20 when lowered, engages the inner perimeter of the toilet bowl rim 19 , thereby defining a largest first seat opening 23 .
- the downward seat flange of the mid-sized second seat 21 when lowered, engages the inner perimeter of the first seat opening 23 thereby defining a mid-sized second seat opening 24 .
- the downward seat flange of the smallest third seat 22 when lowered, engages the inner perimeter of the second seat opening 24 , thereby defining a smallest third seat opening 25 .
- the cross-sectional profile of each of the nested toilet seats comprises the downward seat flange (for the first seat 20 , second seat 21 , third seat 22 ), which transitions into the declining inner seat contour (for the first seat 16 , second seat 17 , third seat 18 ), which transitions into a middle seat contour (for the first seat 26 , second seat 27 , third seat 28 ), which in turn transitions into an outer seat contour (for the first seat 29 , second seat 30 , third seat 31 ).
- the middle seats contours ( 26 , 27 and 28 ) are substantially convex, and the outer seat contours ( 29 , 30 and 31 ) are declining.
- the middle seat contours ( 26 , 27 and 28 ) are substantially concave, and the outer seat contours ( 29 , 30 and 31 ) are inclining.
- the three seats of the second embodiment have the shape of a “tractor seat” 11 , with a substantially concave inner contours 26 , inclining outer contours 29 in the back and sides of the seat, and two declining limb contours 32 in the front of the seat to accommodate the user's legs.
- FIG. 5B shows in profile the declining limb contours for the first seat 32 , for the second seat 33 and for the third seat 34 .
- FIG. 6 depicts an exemplary cooperative hinge structure 14 for the first embodiment, showing rotary connections to a common hinge rod 35 for the seat lid 36 , the third seat 37 , the second seat 38 , and the first seat 39 .
- the hinge structure for the second embodiment would be the same.
Abstract
An assembly of cooperatively hinged nested toilet seats of sizes downwardly graduated from smaller to larger, from a smallest top seat to a largest bottom first seat. Each of the relatively smaller seats nests within a declining inner seat contour of a relatively larger seat below it. An extension of the declining inner seat contour of each seat defines a downward seat flange, which is configured to extend within the rim of the toilet bowl when the seat is lowered. Each successively smaller seat has a downward seat flange which is configured, when the seat is lowered, to nest within and engage the inner perimeter of the seat opening defined by the downward seat flange of the seat below it. The cross-sectional profile of each of the nested toilet seats comprises the downward seat flange, which transitions into the declining inner seat contour, which transitions into a middle seat contour, which in turn transitions into an outer seat contour.
Description
- The present invention relates to the field of toilet seats, and more particularly to toilet seat assemblies comprising multiple toilet seats of different sizes.
- Standard sized toilet seats are designed to accommodate the body contours of an average adult. They are not well suited to small children, who often must support themselves with their arms to avoid falling through the seat opening. This problem makes the process of toilet training young children all the more difficult.
- Large and obese adults often have the opposite problem, as their bottom body contours extend well beyond the rim of the standard toilet seat, making it difficult for them to maintain their balance on the seat.
- Attempts to address these problems have included special toilet seat inserts, such as child seats. But small children usually cannot deploy such inserts without adult assistance, which defeats the goal of enabling the child to use the toilet independently.
- Another approach has been tiered toilet seats, in which a smaller seat rests on top of a larger seat, and the two seats are cooperatively hinged. But such tiered seat configurations tend to raise the overall height of the seat, making the seating of small children and infirm adults even more difficult. Moreover, the overlapping edges of tiered toilet seats tend to generate lateral movement of the seats when bearing bodily weight, thereby making seating more unstable and less comfortable.
- The cross-sectional profile of the standard toilet seat is typically flat to slightly convex, which is not optimal for stable seating. Smaller adults and children tend to fall inward on the seat, while larger adults slide outward. Aged and infirm adults often require assistance maintaining their seating on these seats, because they provide no lateral support.
- (Note: As used in the following descriptions and claims, the terms “outer”, “outward” or “outwardly” refer to the horizontal direction toward the perimeter of the toilet bowl, while the terms “inner”, “inward” or “inwardly” refer to the horizontal direction toward the center of the toilet bowl. The terms “upper”, “upward” or “upwardly” refer to the vertical direction opposite the base of the toilet bowl, while the terms “down”, “downward” or “downwardly” refer to the vertical direction toward the base of the toilet bowl. The term “above” means relatively upward, while the term “below” means relatively downward. The term “top” refers to the most upward, while the term “bottom” refers to the most downward. The term “inclining” means upwardly curving, while the term “declining” means downwardly curving.)
- The present invention addresses the foregoing problems by providing an assembly of cooperatively hinged nested toilet seats of sizes downwardly graduated from smaller to larger, from a smallest top seat to a largest bottom first seat. Each of the relatively smaller seats nests within a declining inner seat contour of a relatively larger seat below it.
- An extension of the declining inner seat contour of each seat defines a downward seat flange, which is configured to extend within the rim of the toilet bowl when the seat is lowered. The downward seat flange of the largest bottom first seat is configured to engage the inner perimeter of the toilet bowl rim when the seat is lowered, thereby defining a largest first seat opening. The downward seat flange of the next largest second seat above the largest bottom first seat is configured to nest within and engage the inner perimeter of the first seat opening when the seat is lowered, thereby defining a next largest second seat opening. Similarly, each successively smaller third, fourth, fifth, etc., seat has a downward seat flange which is configured, when the seat is lowered, to nest within and engage the inner perimeter of the seat opening defined by the downward seat flange of the seat below it.
- The cross-sectional profile of each of the nested toilet seats comprises the downward seat flange, which transitions into the declining inner seat contour, which transitions into a middle seat contour, which in turn transitions into an outer seat contour. In the first embodiment of the present invention, the middle seat contours are substantially convex, and the outer seat contours are declining. In the second embodiment of the present invention, the middle seat contours are substantially concave, and the outer seat contours are inclining.
- The foregoing summarizes the general design features of the present invention. In the following sections, specific embodiments of the present invention will be described in some detail. These specific embodiments are intended to demonstrate the feasibility of implementing the present invention in accordance with the general design features discussed above. Therefore, the detailed descriptions of these embodiments are offered for illustrative and exemplary purposes only, and they are not intended to limit the scope either of the foregoing summary description or of the claims which follow.
-
FIG. 1A is a perspective view of the first embodiment of the present invention comprising a three-seat assembly, showing the lid lifted, the bottom seat lowered, and the two upper seats partially lifted, with the toilet in ghost view; -
FIG. 1B is a perspective view of first embodiment of the present invention, showing the lid lifted and all three seats lowered, with the toilet in ghost view; -
FIG. 2 is a cross-section view of the three seats depicted inFIG. 1B , taken along the line A-A, with the toilet bowl rim in ghost view; -
FIG. 3 is a perspective view of the second embodiment of the present invention, showing the lid lifted and all three seats lowered, with the toilet in ghost view; -
FIG. 4 is a cross-section view of the three seats depicted inFIG. 3 , taken along the line B-B, with the toilet bowl rim in ghost view; -
FIG. 5A is a perspective view of a toilet seat according to the second embodiment of the present invention; -
FIG. 5B is a side profile view of the second embodiment of the present invention, comprising a three-seat assembly, showing the lid and all three seats lowered, with the toilet in ghost view; and -
FIG. 6 is a detail cutaway rear view of an exemplary composite hinge for the present invention. - Referring the
FIGS. 1A and 1B , the first embodiment of the present invention is an assembly of threetoilet seats 10 comprising a largest bottomfirst seat 11, a mid-sizedsecond seat 12 above and smaller than thefirst seat 11, and a smallestthird seat 13, above and smaller than thesecond seat 12. The assembly is cooperatively hinged 14, so that each of theseats 11 12 13 and theseat lid 15 can be independently raised and lowered.FIG. 3 depicts the equivalent structures for the second embodiment of the present invention. - As best seen in
FIGS. 1B and 2 , for the first embodiment, and inFIGS. 3 and 4 for the second embodiment, each of the relatively smaller seats nests within a declining inner seat contour of the larger seat below it. Therefore, as shown inFIGS. 2 and 4 , the mid-sizedsecond seat 12 nests within the declining inner seat contour of the largestfirst seat 16, while the smallestthird seat 13 nests within the declining inner seat contour of the mid-sizedsecond seat 17. The declining inner seat contour of the smallestthird seat 18 rests atop the declining inner seat contour of the mid-sizedsecond seat 17. - Referring again to
FIGS. 2 and 4 , an extension of the declining inner seat contour of each seat defines a downward seat flange, which is configured to extend within thetoilet bowl rim 19 when the seat is lowered. The downward seat flange of the largestfirst seat 20, when lowered, engages the inner perimeter of thetoilet bowl rim 19, thereby defining a largest first seat opening 23. The downward seat flange of the mid-sizedsecond seat 21, when lowered, engages the inner perimeter of the first seat opening 23 thereby defining a mid-sized second seat opening 24. The downward seat flange of the smallestthird seat 22, when lowered, engages the inner perimeter of the second seat opening 24, thereby defining a smallest third seat opening 25. - As depicted in
FIGS. 2 and 4 , the cross-sectional profile of each of the nested toilet seats comprises the downward seat flange (for thefirst seat 20,second seat 21, third seat 22), which transitions into the declining inner seat contour (for thefirst seat 16,second seat 17, third seat 18), which transitions into a middle seat contour (for thefirst seat 26,second seat 27, third seat 28), which in turn transitions into an outer seat contour (for thefirst seat 29,second seat 30, third seat 31). In the first embodiment, as shown inFIG. 2 , the middle seats contours (26, 27 and 28) are substantially convex, and the outer seat contours (29, 30 and 31) are declining. In the second embodiment, as shown inFIG. 4 , the middle seat contours (26, 27 and 28) are substantially concave, and the outer seat contours (29, 30 and 31) are inclining. - As depicted in
FIGS. 5A , the three seats of the second embodiment have the shape of a “tractor seat” 11, with a substantially concaveinner contours 26, incliningouter contours 29 in the back and sides of the seat, and two declininglimb contours 32 in the front of the seat to accommodate the user's legs.FIG. 5B shows in profile the declining limb contours for thefirst seat 32, for thesecond seat 33 and for thethird seat 34. -
FIG. 6 depicts an exemplarycooperative hinge structure 14 for the first embodiment, showing rotary connections to acommon hinge rod 35 for theseat lid 36, thethird seat 37, thesecond seat 38, and thefirst seat 39. The hinge structure for the second embodiment would be the same. - Although the preferred embodiment of the present invention has been disclosed for illustrative purposes, those skilled in the art will appreciate that many additions, modifications and substitutions are possible, without departing from the scope and spirit of the present invention as defined by the accompanying claims.
Claims (4)
1. A toilet seat assembly, comprising:
three or more toilet seats of sizes downwardly graduated from relatively smaller toilet seats to relatively larger toilet seats, from a smallest top toilet seat to a largest bottom toilet seat;
a toilet seat lid, which is configured to fit over and cover the toilet seats;
wherein the toilet seats and the toilet seat lid are connected to a common cooperative hinge member, which is configured so that each of the toilet seats and the toilet seat lid can be independently raised and lowered;
wherein each of the toilet seats has a substantially annular or oval annular shape, which defines a central, substantially circular or oval seat opening, and wherein the seat openings are downwardly graduated from a smallest top seat opening to a largest bottom seat opening;
wherein each of the toilet seats comprises the seat opening, a downward seat flange surrounding the seat opening, a declining inner seat contour surrounding and transitioning into the downward seat flange, a middle seat contour surrounding and transitioning into the declining inner seat contour, and an outer seat contour surrounding and transitioning into the middle seat contour;
wherein each of the relatively smaller toilet seats, when lowered, nests within the declining inner seat contour of the relatively larger toilet seat below it, and the downward seat flange of the relatively smaller toilet seat engages an entire inner perimeter of the downward seat flange of the relatively larger toilet seat below it, so as to define the seat opening of the relatively smaller toilet seat; and
wherein the largest bottom seat, when lowered, rests on a toilet bowl rim, and the downward seat flange of the largest bottom seat engages an inner perimeter of the toilet bowl rim, so as to define the largest bottom seat opening.
2. The toilet seat assembly of claim 1 , wherein the middle seat contour of each toilet seat is substantially convex, and the outer seat contour of each toilet seat is substantially declining.
3. The toilet seat assembly of claim 1 , wherein the middle seat contour of each toilet seat is substantially concave, and the outer seat contour of each toilet seat is substantially inclining.
4. The toilet seat assembly of claim 3 , wherein each toilet seat has a front portion, having two declining limb contours, which are configured to accommodate a user's legs.
Priority Applications (1)
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US15/176,961 US9848744B1 (en) | 2016-06-08 | 2016-06-08 | Nested graduated toilet seats |
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US15/176,961 US9848744B1 (en) | 2016-06-08 | 2016-06-08 | Nested graduated toilet seats |
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US20170354302A1 true US20170354302A1 (en) | 2017-12-14 |
US9848744B1 US9848744B1 (en) | 2017-12-26 |
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US15/176,961 Active US9848744B1 (en) | 2016-06-08 | 2016-06-08 | Nested graduated toilet seats |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113729538A (en) * | 2021-09-13 | 2021-12-03 | 厦门盛滕卫浴制造有限公司 | Three-piece slowly-descending one-key quick-release toilet cover plate |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11457780B1 (en) * | 2019-12-17 | 2022-10-04 | Steve Wright | Rearward-facing toilet |
US11317769B1 (en) * | 2020-11-03 | 2022-05-03 | Johnny Brown | Toilet seat assembly |
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US674166A (en) * | 1899-03-27 | 1901-05-14 | Edgar M Joralemon | Water-closet seat. |
US2047480A (en) * | 1934-05-08 | 1936-07-14 | Macdonald Herbert Cumming | Toilet seat and cover |
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US9848744B1 (en) | 2017-12-26 |
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