JP7145631B2 - toilet seat unit - Google Patents

Description

The present invention relates to a toilet seat unit and a toilet device.

Patent Literature 1 describes a toilet device capable of washing the back surface of the toilet seat by discharging cleaning liquid from a discharge portion (water discharging means) onto the back surface of the toilet seat.

JP-A-2002-54216

In the toilet bowl device of Patent Document 1, a functional device is installed in the toilet body, and the functional device has a casing provided separately from the toilet seat. The inventor of the present invention has studied the technique disclosed in Patent Document 1, and has recognized that there is room for improvement from the viewpoint of improving the cleanability of the toilet body.

An aspect of the present invention has been made in view of such problems, and one of the objects thereof is to improve the cleanability of the toilet bowl body in order to wash the back surface of the toilet seat and the inner surface of the toilet bowl portion of the toilet bowl body. It is to provide the technology that is possible.

A first aspect of the present invention for solving the aforementioned problems is a toilet seat unit. A toilet seat unit of a first aspect includes a functional device installed in a toilet body and a toilet seat rotatably attached to the functional device, the functional device being provided separately from the toilet seat, It has a casing rotatably attached to the toilet body.

According to the first aspect, by rotating the casing, a portion of the upper surface of the toilet body can be exposed. Also, when the upper surface of the toilet bowl body is exposed, most of the casing is no longer located above the exposed portion. Along with this, the visibility of the exposed portion is improved, and the cleanability of the exposed portion is improved.

It is a side view of the toilet device of the first embodiment. It is a side cross-sectional view of part of the toilet device of the first embodiment. It is the figure which looked at the toilet seat unit of 1st Embodiment from the lower side. It is a figure which shows the positional relationship of the toilet seat unit of 1st Embodiment, and a toilet bowl main body. It is a top view of a portion of the toilet device of the first embodiment. It is a figure which shows the range where the washing|cleaning liquid which the 1st discharge part of 1st Embodiment discharges spreads along the 1st bowl opposing surface of a toilet seat. It is a figure which shows the range where the washing|cleaning liquid which the 2nd discharge part of 1st Embodiment discharges spreads along the 1st bowl opposing surface of a toilet seat. FIG. 3 is a cross-sectional view taken along line AA of FIG. 2; FIG. 9(a) is an explanatory diagram showing the first specific area, and FIG. 9(b) is an explanatory diagram showing the second specific area. It is a figure which shows the positional relationship of the inner peripheral side convex part of the toilet seat of 1st Embodiment, and accumulated water. It is a side sectional view of the 1st discharge part of a 1st embodiment. 12(a) is a cross-sectional view taken along line BB of FIG. 11, and FIG. 12(b) is a view of FIG. 12(a) viewed from arrow C. FIG. It is explanatory drawing which shows the inclination of the 1st bowl opposing surface of the toilet seat of 1st Embodiment. FIG. 14 is a cross-sectional view taken along line DD of FIG. 13; FIG. 15(a) is a diagram schematically showing the back surface of the toilet seat of the first modification, and FIG. 15(b) is a diagram schematically showing the back surface of the toilet seat of the first embodiment. (c) is an enlarged view of part of the back surface of the toilet seat of FIG. 15(b). It is the front view which looked at the 2nd casing of FIG. 2 from the front. Figure 17 is a side sectional view of the second casing through the first discharge of Figure 16; 17 is a diagram showing another state of the second casing of FIG. 16; FIG. FIG. 19 is a perspective view of the configuration around the first ejection portion of FIG. 18 as seen from below; It is a block diagram which shows a part of function of the toilet bowl apparatus of 1st Embodiment. FIG. 21(a) is a diagram showing a state in which the first ejection operation and the second ejection operation are performed simultaneously, and FIG. 21(b) is a diagram showing a state in which only the first ejection operation is performed. , and FIG. 21(c) is a diagram showing a state in which only the second ejection operation is performed. FIG. 22(a) shows the operating state of the first shutter and the second shutter, and FIG. 22(b) shows another operating state. FIG. 23(a) is an explanatory diagram showing the flow behind the first seat, and FIG. 23(b) is an explanatory diagram showing the flow inside the first bowl. FIG. 24(a) is an explanatory diagram showing the flow behind the second seat, and FIG. 24(b) is an explanatory diagram showing the flow inside the second bowl. FIG. 3 is a view showing a part of the EE cross section of FIG. 2; FIG. 26 is a cross-sectional view showing the internal structure of the third discharge part of FIG. 25; It is explanatory drawing which shows the flow in a 3rd bowl. It is explanatory drawing which shows the flow in a 2nd bowl and the flow in a 3rd bowl. FIG. 4 is a side cross-sectional view of the second casing through the nozzle of the first embodiment; FIG. 30A is a diagram schematically showing the cleaning liquid ejected by the first ejection section of the first embodiment, and FIG. 30B is a diagram showing the cleaning liquid ejected by the first ejection section of the second modified example. It is a figure shown typically. Fig. 2 is an enlarged side view of part of the toilet seat unit of the first embodiment; It is a figure which shows the positional relationship of the toilet seat of 1st Embodiment, and a 2nd casing. It is a perspective view of FIG.32(b). It is a perspective view of FIG.32(c). FIG. 32 is a view as seen from arrow F in FIG. 31; FIG. 36 is a cross-sectional view showing an enlarged part of FIG. 35; FIG. 37 is a cross-sectional view taken along line GG of FIG. 36; 1 is a perspective view of a functional device according to a first embodiment; FIG. It is a figure which shows a part of toilet bowl apparatus of 2nd Embodiment. It is a figure which shows typically a part of toilet seat of 3rd Embodiment. It is a figure which shows typically some toilet bowl apparatuses of 4th Embodiment. It is a figure which shows typically a part of toilet bowl apparatus of 5th Embodiment. It is a side sectional view which shows typically the toilet bowl apparatus of 6th Embodiment. It is another side sectional view which shows typically the toilet bowl apparatus of 6th Embodiment.

Hereinafter, in the embodiments and modified examples, the same constituent elements are denoted by the same reference numerals, and overlapping descriptions are omitted. Moreover, in each drawing, for convenience of explanation, some of the constituent elements are appropriately omitted, and the dimensions of the constituent elements are shown by appropriately enlarging or reducing them.

(First embodiment)
(1) The toilet device 10 of the first embodiment will be described. First, the first contrivance of the toilet device 10 will be described. FIG. 1 is a side view of toilet device 10, and FIG. 2 is a side cross-sectional view of a portion thereof.

The toilet device 10 includes a toilet bowl body 14 having a toilet bowl portion 12 at the front, and a toilet seat unit 16 attached to the toilet bowl body 14 . The toilet body 14 has a rim portion 18 that forms a peripheral edge portion of the upper end opening of the toilet bowl portion 12 in addition to the toilet bowl portion 12 . The toilet seat unit 16 mainly includes a functional device 20 and a toilet seat 22 . Hereinafter, the positional relationship of the constituent elements of the toilet device 10 will be described using three mutually orthogonal directions. These directions are the front-back direction X, the left-right direction Y, and the up-down direction Z of the toilet body 14 . The front-rear direction X and the left-right direction Y are horizontal directions and correspond to the front, rear, left, and right of a person sitting on the toilet seat 22 in a normal posture. The vertical direction Z is the vertical direction.

The functional device 20 has a first casing 24 installed in the rear portion of the toilet body 14 and a second casing 26 arranged in front of the first casing. In FIG. 2, only the cross-sectional contours of the first casing 24 and the second casing 26 are shown.

FIG. 3 is a diagram of the toilet seat unit 16 viewed from below. The toilet seat 22 is provided in the central portion of the toilet seat 22 and has a central opening 32 for passing excrement excreted by the seated person. In this specification, when the toilet seat 22 is viewed from the up-down direction Z, the circumferential direction around the center Cp of the central opening 32 is simply referred to as the "circumferential direction", and the radial direction around the center Cp is simply the "radial direction". ”. Hereinafter, the center Cp of the central opening 32 of the toilet seat 22 is also simply referred to as "the center Cp of the toilet seat 22". The center Cp here means the geometric center of gravity of the central opening 32 of the toilet seat 22 when the toilet seat 22 is viewed from the up-down direction Z. As shown in FIG.

FIG. 4 is a diagram showing the positional relationship between the toilet seat unit 16 and the toilet body 14. As shown in FIG. A solid line indicates a portion overlapping the inner surface of the toilet bowl portion 12 of the toilet body 14 in the vertical direction Z, and a two-dot chain line indicates the other portions. A first bowl-facing surface 34 facing the inner surface of the toilet bowl portion 12 in the up-down direction Z is provided on the back surface, which is the outer surface of the toilet seat 22 . The first bowl-facing surface 34 is exposed to the internal space of the toilet bowl 12, and is easily soiled by splashes of dirt received by the toilet bowl 12 and the like. The first bowl-facing surface 34 of the present embodiment has an annular shape continuous in the circumferential direction.

The first pot-facing surface 34 has a right half region 38R (first half region) that constitutes a right half of the first pot-facing surface 34 on one side in the left-right direction Y (left side of the paper surface in the drawing). and a left half region 38L (second half region) forming a left half portion on the other side. When the toilet seat 22 is viewed from the back, the left-right center line along the front-rear direction X that bisects the outer dimension of the first bowl-facing surface 34 in the left-right direction Y is assumed to be Ca. At this time, the right half region 38R refers to a region located on the right side of the left-right center line Ca among the regions constituting the first bowl facing surface 34, and the left half region 38L refers to the region located on the left-right center line Ca. It refers to the area located on the left side. Here, viewing from the back means viewing the toilet seat 22 from below in the up-down direction when the toilet seat 22 is in the laid down position (described later). Hereinafter, the front circumferential end portion 38Ra of the right half region 38R and the front circumferential end portion 38La of the left half region 38L are collectively referred to as a front end region 39. FIG.

FIG. 5 is a top view of a portion of the toilet device 10. FIG. As shown in FIGS. 4 and 5, the toilet device 10 includes a plurality of ejection portions 50A to 50C capable of ejecting cleaning liquid supplied from a liquid supply source such as a tank. Although the cleaning liquid of the present embodiment is cleaning water whose main component is water, alcohol or the like other than water may be used as the main component.

The discharge sections 50A to 50C of the present embodiment include seat back discharge sections 50A and 50B for washing the back surface of the toilet seat 22. As shown in FIG. The seat back discharge portions 50A and 50B include a first discharge portion 50A and a second discharge portion 50B. The first discharge part 50A is arranged above the right half of the toilet body 14 . The second discharge part 50B is arranged above the left half of the toilet body 14 . In this embodiment, the first discharge portion 50A is arranged above the rear end portion of the right half of the toilet bowl portion 12, and the second discharge portion 50B is arranged above the rear end portion of the left half portion of the toilet bowl portion 12. placed on the top.

FIG. 6 is a diagram showing a range Sa over which the cleaning liquid discharged by the first discharge portion 50A is transmitted along the first bowl-facing surface 34 of the toilet seat 22. As shown in FIG. The first discharge part 50A discharges the cleaning liquid forward along the right half region 38R of the first bowl-facing surface 34 . The first discharge part 50A can also be considered to discharge the cleaning liquid along the first bowl-facing surface 34 toward one side Pa of the toilet seat 22 in the circumferential direction.

FIG. 7 is a diagram showing a range Sb in which the washing liquid discharged by the second discharge part 50B is transmitted along the first bowl-facing surface 34 of the toilet seat 22. As shown in FIG. The second discharge part 50B discharges the cleaning liquid forward along the left half region 38L of the first bowl facing surface 34 . The second discharge part 50B can also be considered to discharge the cleaning liquid along the first bowl-facing surface 34 toward the other side Pb of the toilet seat 22 in the circumferential direction.

As shown in FIG. 4, in a rear view of the toilet seat 22, a bisector that bisects the first bowl-facing surface 34 on a virtual half-line La extending from the center Cp of the toilet seat 22 is Lb. The first pot facing surface 34 has an inner peripheral side portion 52 on the inner peripheral side of the bisector Lb and an outer peripheral side portion 54 on the outer peripheral side of the bisector Lb.

FIG. 8 is a cross-sectional view taken along line AA of FIG. This figure is also a vertical section passing through the center Cp of the toilet seat 22 . As shown in FIGS. 4 and 8 , the toilet seat 22 has an inner peripheral projection 56 protruding downward from the inner peripheral portion 52 of the first bowl-facing surface 34 and an outer peripheral portion 54 of the first bowl-facing surface 34 . It has an outer peripheral side protrusion 58 that protrudes downward. The inner peripheral convex portion 56 is provided in a range extending from the inner peripheral edge portion of the first bowl-facing surface 34 to an intermediate position in the radial direction. The inner peripheral side convex portion 56 can be regarded as constituting at least the inner peripheral edge portion of the first bowl-facing surface 34 . The outer peripheral side convex portion 58 is provided in a range extending from the outer peripheral edge portion of the first bowl facing surface 34 to an intermediate position in the radial direction. The outer peripheral side convex portion 58 can be regarded as constituting at least the outer peripheral edge portion of the first bowl-facing surface 34 .

(A-1) The outer peripheral surface 56a of the inner peripheral protrusion 56 is formed to extend downward toward the radially inner side. As a shape that satisfies this condition, the outer peripheral surface 56a of the inner peripheral side convex portion 56 of this embodiment has a concave surface shape in a vertical cross section passing through the center Cp of the toilet seat 22. As shown in FIG.

The central opening 32 of the toilet seat 22 is formed with a flat surface 60 extending from the front surface to the back surface of the toilet seat 22 in a vertical cross section passing through the center Cp of the toilet seat 22 . The inner peripheral surface 56 b of the inner peripheral convex portion 56 of the present embodiment constitutes a part of this flat surface 60 .

(A-2) The inner peripheral surface 58a of the outer peripheral protrusion 58 is formed to extend downward toward the radially outer side. As a shape that satisfies this condition, the inner peripheral surface 58a of the outer peripheral side convex portion 58 of this embodiment has a concave surface shape in a vertical cross section passing through the center Cp of the toilet seat 22. As shown in FIG.

The outer peripheral surface 58b of the outer peripheral convex portion 58 of the present embodiment is formed in an outer shape that matches the outer shape of the inner peripheral surface of the upper edge portion 12a of the toilet bowl portion 12, and is arranged along the inner peripheral surface. The inner peripheral surface of the upper edge portion 12a of the toilet bowl portion 12 has a concave curved surface shape, and the outer peripheral surface 58b of the outer peripheral side convex portion 58 has the same shape as the concave curved surface formed by the inner peripheral surface of the upper edge portion 12a. It forms a convex curved surface with a radius of curvature.

In the present embodiment, the outer peripheral surface 56a of the inner peripheral protrusion 56 and the inner peripheral surface 58a of the outer peripheral protrusion 58 constitute a part of the concave curved surface 62 that is smoothly connected. In addition, the outer peripheral surface 56a of the inner peripheral protrusion 56 and the inner peripheral surface 58a of the outer peripheral protrusion 58 constitute a part of the circumferentially continuous groove.

Please refer to FIG. The inner peripheral convex portion 56 is a ridge that continues in the circumferential direction on the first bowl-facing surface 34 . The inner peripheral convex portion 56 of the present embodiment extends from the center portion 38Rb in the front-rear direction Y of the right half region 38R of the first bowl-facing surface 34 to the front circumferential end portion 38Ra of the right half region 38R. has a first guide portion 40 provided so as to be continuous in the circumferential direction. The central portion 38Rb of the right half region 38R refers to a portion that overlaps with the front-rear center line Cb of the first pot-facing surface 34 and a portion that includes a peripheral portion. The front-back center line Cb refers to a line along the left-right direction Y that bisects the front-back direction X dimension of the first bowl-facing surface 34 when the toilet seat 22 is viewed from the back. It can also be said that the first guide portion 40 is provided so as to be continuous in the circumferential direction in a range from a portion overlapping the front-rear center line Cb of the right half region 38R to the circumferential end portion 38Ra of the right half region 38R.

The inner peripheral convex portion 56 extends in the circumferential direction from the center portion 38Lb in the front-rear direction Y of the left half region 38L of the first bowl facing surface 34 to the front circumferential end portion 38La of the left half region 38L. It has a second guide portion 42 that is provided so as to be continuous. The central portion 38Lb of the left half region 38L refers to a portion that overlaps with the front-rear center line Cb of the first pot-facing surface 34 and a portion that includes a peripheral portion. It can also be said that the second guide portion 42 is provided so as to be continuous in the circumferential direction in a range from a portion overlapping the front-rear center line Cb of the left half region 38L to the circumferential end portion La of the left half region 38L.

The inner peripheral convex portion 56 of the present embodiment is continuous in the circumferential direction from the rear end of the right half region 38R to the rear end of the left half region 38L via the front end region 39. provided in The outer peripheral convex portion 58 has the same configuration. The groove formed by the inner peripheral protrusion 56 and the outer peripheral protrusion 58 has the same configuration.

Please refer to FIG. The inner peripheral convex portion 56 and the outer peripheral convex portion 58 are provided so as to be positioned below the upper surface 18 a of the rim portion 18 of the toilet body 14 . The lower end of the inner peripheral protrusion 56 of the present embodiment is provided so as to be located below the lower end of the outer peripheral protrusion 58 .

The toilet device 10 is provided with a flow restricting structure 64 for restricting the flow of the cleaning liquid flowing radially outward through the space between the rim portion 18 of the toilet body 14 and the toilet seat 22 . The flow regulating structure 64 of this embodiment is the upper edge portion 12a of the toilet bowl portion 12 of the toilet body 14 .

The operation of the above toilet device 10 will be described. Although the details will be described later, the toilet device 10 of the present embodiment is configured to start the operation of discharging the cleaning liquid from the second discharging section 50B after completing the operation of discharging the cleaning liquid from the first discharging section 50A. be.

As shown in FIG. 6, the washing liquid discharged from the first discharge part 50A hits the rear portion of the right half region 38R of the first bowl facing surface 34 of the toilet seat 22, and spreads in the discharge direction Pc from the hit point Spa. , to form a first seating back flow Fa that propagates through the first bowl facing surface 34. - 特許庁The discharge direction Pc here refers to a direction along the central axis of the cleaning liquid outlet 76 (described later) of the discharging portion being referred to. A part of the first seat underflow Fa collides with the above-described flow regulating structure 64 and the outer peripheral convex portion 58 of the toilet seat 22, so that the flow direction is changed so as to be bent inward in the radial direction. The outer peripheral portion 54 of the opposing surface 34 is guided along one side Pa in the circumferential direction (see direction Da).

In the rear view of the toilet seat 22, the outer peripheral surface 56a of the inner peripheral convex portion 56, more specifically, the outer peripheral surface of the first guide portion 40, is within the range Sc in which the cleaning liquid can advance straight from the first ejection portion 50A in the ejection direction Pc. positioned. As a result, part of the cleaning liquid discharged from the first discharge portion 50A flows along the outer peripheral surface 56a of the inner peripheral convex portion 56 in the circumferential direction. The first discharge portion 50A discharges the cleaning liquid along the outer peripheral surface 56a (the first guide portion 40) of the inner peripheral convex portion 56 in the circumferential direction.

A portion of the cleaning liquid discharged from the first discharge portion 50A moves in the radial direction due to the Coanda effect in the process of traveling along the outer peripheral surface 56a (the first guide portion 40) of the inner peripheral convex portion 56 in the circumferential direction. While bending inward, it tries to flow along the outer peripheral surface 56a (see direction Db). A portion of the cleaning liquid is guided along the inner peripheral side portion 52 of the first bowl-facing surface 34 to one side Pa in the circumferential direction while changing its flow direction so as to bend radially inward. In this manner, the first guiding portion 40 of the inner peripheral convex portion 56 bends the flow direction of a part of the cleaning liquid discharged from the first discharging portion 50A radially inward, while A portion of the cleaning liquid can be guided along the circumferential portion 52 .

As shown in FIG. 7, the cleaning liquid discharged from the second discharge portion 50B hits the rear part of the left half region 38L of the first bowl facing surface 34, spreads from the hitting point Spb in the discharge direction Pc, A second seat back flow Fb that propagates along the bowl facing surface 34 is formed. Like the first seat back flow Fa, a part of the second seat back flow Fb hits the flow regulating structure 64 and the outer convex portion 58 of the toilet seat 22, and the flow direction is changed so as to be bent radially inward. , mainly along the outer peripheral side portion 54 of the first bowl-facing surface 34 to the other side Pb in the circumferential direction (see direction Dc).

In the rear view of the toilet seat 22, the outer peripheral surface 56a of the inner peripheral convex portion 56, more specifically, the outer peripheral surface of the second guide portion 42, is within the range Sd in which the cleaning liquid can advance straight from the second ejection portion 50B in the ejection direction Pc. positioned. As a result, part of the cleaning liquid discharged from the second discharging portion 50B also flows along the outer peripheral surface 56a (the second guiding portion 42) of the inner peripheral convex portion 56 in the circumferential direction.

A portion of the cleaning liquid discharged from the second discharge portion 50B also changes its flow direction to the radial direction due to the Coanda effect in the process of traveling along the outer peripheral surface 56a (second guide portion 42) of the inner peripheral convex portion 56 in the circumferential direction. While bending inward, it tries to flow along its outer peripheral surface 56a (see direction Dd). A portion of the cleaning liquid is guided along the inner peripheral side portion 52 of the first bowl-facing surface 34 to the other side Pb in the circumferential direction while changing its flow direction so as to bend inward in the radial direction. In this way, the second guiding portion 42 of the inner peripheral convex portion 56 bends the flow direction of part of the cleaning liquid discharged from the second discharging portion 50B radially inward, A portion of the cleaning liquid can be guided along the circumferential portion 52 .

With the above configuration, the first seat underflow Fa flows along the first bowl-facing surface 34 in the circumferential direction so as to pass through the center portion 38Rb in the front-rear direction Y of the right half region 38R of the toilet seat 22 and the circumferential end portion 38Ra. is transmitted to one side Pa of . In addition, the second seat back flow Fb flows through the first bowl-facing surface 34 on the other side in the circumferential direction so as to pass through the center portion 38Lb in the front-rear direction Y of the left half region 38L of the toilet seat 22 and the circumferential end portion 38La. transmitted to Pb. The first seat underflow Fa and the second seat underflow Fb flow along the front end region 39 of the first bowl-facing surface 34 as regions that partially overlap each other.

The effects of the above toilet device 10 will be described. The toilet device 10 includes guiding portions 40 and 42 (inner peripheral protrusions 56 ) capable of guiding part of the cleaning fluid along the inner peripheral portion 52 of the first bowl facing surface 34 of the toilet seat 22 . Therefore, at a location apart from the points Spa and Spb where it starts to travel on the first bowl-facing surface 34, outside the region where the cleaning liquid can go straight from the points Spa and Spb where it starts to travel, the inner peripheral side of the first bowl-facing surface 34 The cleaning liquid can be easily transmitted to the portion 52. - 特許庁This means, for example, that the cleaning liquid can be easily transmitted to regions 88A and 88B (see FIG. 9), which will be described later. Therefore, the cleaning liquid can reach a wide range of the first bowl-facing surface 34, and the unwashed portion of the first bowl-facing surface 34 can be suppressed.

FIG. 9(a) is an explanatory diagram showing the first specific area 66A, and FIG. 9(b) is an explanatory diagram showing the second specific area 66B. When the toilet seat 22 is viewed from the back, virtual lines extending from the seat back discharge portions 50A and 50B in the washing liquid discharge direction Pc and circumscribing the outline of the central opening 32 of the toilet seat 22 are defined as external tangent lines LcA and LcB. . Outer tangent lines LcA and LcB extend from the central position of the cleaning liquid outlet 76 of the seat back discharge parts 50A and 50B when the toilet seat 22 is viewed from the back. The outer tangent lines LcA and LcB include a first outer tangent line LcA corresponding to the first ejection portion 50A and a second outer tangent line LcB corresponding to the second ejection portion 50B.

In the first bowl-facing surface 34 of the toilet seat 22, a region closer to the center Cp of the toilet seat 22 than the first outer tangent line LcA and located in the discharge direction Pc of the first discharge portion 50A from the circumscribed point of the first outer tangent line LcA. The area is called a first specific area 66A. In the first bowl-facing surface 34 of the toilet seat 22, a region closer to the center Cp of the toilet seat 22 than the second tangential line LcB and located in the discharge direction Pc of the second discharge part 50B from the circumscribed point of the second tangent line LcB. The area is called a second specific area 66B. The first specific region 66A is a region that is difficult for the cleaning liquid discharged by the first discharge section 50A to reach, and the second specific region 66B is a region that is difficult for the cleaning liquid discharged by the second discharge section 50B to reach.

At this time, the first guide portion 40 is guided along a part of the portion overlapping the first specific region 66A (the double hatched region 88A in FIG. 9A) in the inner peripheral side portion 52 of the first bowl facing surface 34. A portion of the wash solution can be directed to the In addition, the second guide portion 42 is formed so as to extend along a portion of the portion overlapping the second specific region 66B (the double hatched region 88B in FIG. 9B) in the inner peripheral side portion 52 of the first bowl facing surface 34. A portion of the wash liquid can be derived. As a result, the cleaning liquid ejected from the ejection portions 50A and 50B can easily reach places where it is difficult for the cleaning liquid to reach.

A front circumferential end portion 38Ra of the half region 38R is a portion that is difficult for the cleaning liquid to reach when discharging the cleaning liquid from the discharging portion 50A along the half region 38R forward. The first guide portion 40 of the inner peripheral convex portion 56 is provided so as to be continuous in the circumferential direction within a range including at least the center portion 38Rb in the front-rear direction Y of the half region 38R to the front circumferential end portion 38Ra. This makes it easier for the cleaning liquid to reach the front circumferential end portion 38Ra of the half region 38R, which is difficult for the cleaning liquid to reach, when the cleaning liquid is discharged forward along the half region 38R.

The seat back discharge parts 50A and 50B discharge the cleaning liquid along the outer peripheral surface 56a of the inner peripheral convex part 56 in the circumferential direction. Therefore, as described above, the Coanda effect can be used to guide the cleaning liquid over a wide range of the inner peripheral side portion 52 of the first bowl-facing surface 34 . In addition, the cleaning liquid cannot be directly applied to the outer peripheral surface 56a of the inner peripheral side projection 56 outside the area where the cleaning liquid can move straight from the points Spa and Spb where the cleaning liquid starts to spread, and it is difficult for the cleaning liquid to reach. According to the present embodiment, even a part of the outer peripheral surface 56a of the inner peripheral convex portion 56, which is difficult to reach for the cleaning liquid, can be reached by the cleaning liquid using the Coanda effect. has the advantage of being able to effectively clean the

As shown in FIG. 8, the outer peripheral surface 56a of the inner peripheral convex portion 56 is formed to extend downward toward the radially inner side. Therefore, when part of the cleaning liquid tries to run radially inward along the outer peripheral surface 56a of the inner peripheral side protrusion 56, the cleaning liquid can easily spread to the lower end of the inner peripheral side protrusion 56 without losing momentum. (See direction De). Therefore, it becomes easy to clean the outer peripheral surface 56a of the inner peripheral side convex portion 56 by utilizing the force of the cleaning liquid directed radially inward.

An inner peripheral surface 58a of the outer peripheral convex portion 58 is formed so as to extend downward toward the radially outer side. Therefore, when part of the cleaning liquid tries to flow radially outward along the inner peripheral surface 58a of the outer peripheral side protrusion 58, the cleaning liquid can easily spread to the lower end of the outer peripheral side protrusion 58 without losing momentum ( direction Df). Therefore, it becomes easy to clean the inner peripheral surface 58a of the outer peripheral convex portion 58 by using the force of the cleaning liquid directed radially outward.

Other features of the toilet device 10 are described. As shown in FIG. 2 , the toilet body 14 has a trap portion 70 connected to the bottom portion of the toilet bowl portion 12 . The trap part 70 constitutes a part of a discharge passage part for discharging the wash water and wastes in the toilet bowl part 12 to the sewer side water channel. The internal space of the trap portion 70 communicates with the internal space of the toilet bowl portion 12 through an inlet 70 a formed in the bottom portion of the toilet bowl portion 12 . The trap part 70 of this embodiment is provided on the front side of the bottom part of the toilet bowl part 12 . The trap portion 70 has an ascending channel portion 70b and a descending channel portion 70c in order from the upstream side to the downstream side. The ascending channel portion 70 b is provided so as to ascend toward the downstream side of the trap portion 70 . The descending channel portion 70c is provided so as to descend toward the downstream side of the trap portion 70 .

Pooled water 72 is stored in the bottom portion of the toilet bowl portion 12 and the ascending channel portion 70 b of the trap portion 70 . The pooled water 72 functions as sealing water to block the flow of air in the direction of water flow in the ascending channel portion 70b of the trap portion 70, thereby preventing backflow of odor from the sewage channel.

FIG. 10 is a plan view of the toilet bowl main body 14 showing the positional relationship between the inner circumferential convex portion 56 of the toilet seat 22 and the stagnant water 72. As shown in FIG. The inner peripheral convex portion 56 overlaps the toilet bowl portion 12 in the vertical direction Z at a location avoiding the pooled water 72 in a range Se where the cleaning liquid discharged from the seat back discharge portions 50A and 50B is transmitted in plan view. placed in The inner peripheral side convex portion 56 is provided at a position that does not overlap the pooled water 72 in the vertical direction Z in the range Se where the cleaning liquid discharged from the seat back discharge portions 50A and 50B is transmitted. In this embodiment, the range Se in which the cleaning liquid is transmitted is the entire range from the rear of the left half region 38L and the right half region 38R of the first bowl facing surface 34 to the front circumferential ends 38La and 38Ra. Say. As a result, even if part of the cleaning liquid drips from the inner convex portion 56 after cleaning the toilet seat 22 with the cleaning liquid, it is difficult for the cleaning liquid to drop directly into the stagnant water 72, and noise can be suppressed.

FIG. 11 is a side sectional view of the first discharge portion 50A. 12(a) is a cross-sectional view taken along line BB of FIG. 11, and FIG. 12(b) is a view of FIG. 12(a) viewed from arrow C. FIG. Since most of the configurations are common to the first ejection section 50A and the second ejection section 50B, the common configuration will be described with reference to the drawing showing the first ejection section 50A. A discharge hole 74 for discharging the cleaning liquid is formed in the seat back discharge parts 50A and 50B. The discharge hole 74 has a first portion 74a on the upstream side and a second portion 74b that continues downstream from the first portion 74a and has a cleaning liquid outlet 76 formed at its downstream end.

The first portion 74a is formed so that the passage cross-sectional area thereof becomes the same size toward the downstream side of the discharge hole 74. As shown in FIG. The first portion 74a of this embodiment is formed to extend linearly toward the downstream side of the discharge hole 74 .

The second portion 74b is formed so that its inner width in the horizontal direction Pd increases continuously as it approaches the cleaning fluid outlet 76 when the toilet seat 22 is viewed from the back. The horizontal direction Pd here refers to a direction orthogonal to the ejection direction Pc of the seat back ejection portions 50A and 50B referred to when the toilet seat 22 is viewed from the back. The second portion 74b is formed such that the passage cross-sectional area continuously increases toward the downstream side of the discharge hole 74. As shown in FIG. The cross-sectional shape of the second portion 74b of the present embodiment is an ellipse with the horizontal direction Pd as the major axis direction, and the major axis, which is the length in the major axis direction, increases as it approaches the cleaning liquid outlet 76. It is formed. The second portion 74b is formed so that the inner width in the direction Pe perpendicular to the discharge direction Pc and the horizontal direction Pd toward the cleaning liquid outlet 76 is the same size.

As a result, the cleaning liquid flows through the second portion 74b of the ejection hole 74 while spreading in the direction Pd, and the cleaning liquid having a velocity component in the direction Pd can be ejected from the cleaning liquid outlet 76 of the ejection hole 74. FIG. As a result, the cleaning liquid is more likely to spread in the direction Pd (see also FIGS. 6 and 7) in the process of being conveyed in the discharge direction Pc on the first bowl-facing surface 34 of the toilet seat 22, so that the cleaning liquid reaches a wide range of the first bowl-facing surface 34. becomes easier. In particular, there is an advantage that the cleaning liquid can be easily delivered to areas outside the area where the cleaning liquid can go straight from the points Spa and Spb where the cleaning liquid starts to spread on the first bowl facing surface 34 . This means, for example, that the cleaning liquid can be easily transmitted to the regions 88A and 88B in FIG. 9 described above.

Other features of the toilet device 10 are described. FIG. 13 is an explanatory diagram showing the gradient of the first bowl-facing surface 34 of the toilet seat 22. As shown in FIG. In this figure, the arrow indicates the direction in which the gradient goes from the high position to the low position.

As shown in FIGS. 6 and 13, the first bowl-facing surface 34 has a first gradient toward one side Pa in the circumferential direction in at least a part of the range where the cleaning liquid discharged from the first discharge portion 50A is transmitted. A first ramp 82 is provided that slopes down at 80 . The first inclined surface 82 of the present embodiment includes at least the central portion 38Rb in the front-rear direction Y of the right half region 38R of the first pot-facing surface 34 to the front circumferential end portion 38Ra of the right half region 38R. provided in the range. The first inclined surface 82 of the present embodiment is provided in a range from the rear end portion of the right half region 38R to the front circumferential end portion 38Ra.

As shown in FIGS. 7 and 13, the first bowl-facing surface 34 has a second gradient toward the other side Pb in the circumferential direction in at least a part of the range where the cleaning liquid discharged from the second discharge portion 50B is transmitted. A second ramp 86 is provided that slopes down at 84 . The second inclined surface 86 of the present embodiment includes at least the central portion 38Lb in the front-rear direction Y of the left half region 38L of the first bowl-facing surface 34 to the front circumferential end portion 38La of the left half region 38L. provided in the range. The second inclined surface 86 of the present embodiment is provided in a range from the rear end portion of the left half region 38L to the front circumferential end portion 38La.

14 is a cross-sectional view along line DD of FIG. 13. FIG. The first bowl-facing surface 34 of the toilet seat 22 is provided with a peak portion 88 formed by the lower end portion of the first inclined surface 82 and the lower end portion of the second inclined surface 86 . The mountain portion 88 is provided on the first bowl facing surface 34 of the toilet seat 22 so as to form a downward convex shape. The peak portion 88 of the present embodiment is provided so that the lower end portion of the first inclined surface 82 and the lower end portion of the second inclined surface 86 form a downwardly pointed corner portion.

The first inclined surface 82 and the second inclined surface 86 are provided with a third slope 90 that slopes downward from the intermediate position in the radial direction of the first bowl-facing surface 34 toward the inner peripheral edge of the first bowl-facing surface 34 . be done. The third slope 90 is provided on the outer peripheral surface 56 a of the inner peripheral side convex portion 56 . The first inclined surface 82 and the second inclined surface 86 are provided with a fourth slope 92 that slopes downward from the intermediate position in the radial direction of the first bowl-facing surface 34 toward the outer peripheral edge of the first bowl-facing surface 34 . be done. The fourth slope 92 is provided on the inner peripheral surface 58 a of the outer peripheral protrusion 58 .

The effect of the above features will be described. FIG. 15(a) is a diagram schematically showing the back surface of the toilet seat 22 of the first modification, and FIG. 15(b) is a diagram schematically showing the back surface of the toilet seat 22 of the first embodiment. The first inclined surface 82 is not provided on the back surface of the toilet seat 22 of the first modified example. As shown in FIGS. 15A and 15B, when the back surface of the toilet seat 22 is provided with an inclined surface 82, the cleaning liquid 94 discharged from the first discharge part 50A is easily transferred to the back surface of the toilet seat 22. As shown in FIGS. The reason for this is explained.

FIG. 15(c) is an enlarged view of part of the back surface of the toilet seat 22 of FIG. 15(b). Gravity due to its own weight applied to the cleaning liquid 94 is represented by Fg, and this gravity Fg is divided into a force component Fg1 in the direction normal to the first inclined surface 82 and a force component Fg2 in the downward gradient direction parallel to the first inclined surface 82. decompose into At this time, a force component Fg2 having a magnitude obtained by multiplying the sine value (sin θ) of the angle θ formed by the first inclined surface 82 with respect to the horizontal plane by the gravity Fg acts on the cleaning liquid flowing along the first inclined surface 82 . there is This is because when the cleaning liquid is transmitted on the first inclined surface 82 of the toilet seat 22, the cleaning liquid is transmitted in the direction in which the first inclined surface 82 has a downward slope (the direction of the force component Fg2) by using the gravitational force due to the weight of the cleaning liquid. It means that it becomes easier to Therefore, according to this embodiment, compared to the case where the toilet seat 22 does not have the first inclined surface 82 , it becomes easier for the cleaning liquid to reach a wider area on the back surface of the toilet seat 22 .

In addition, when the cleaning liquid runs along the second inclined surface 86 of the toilet seat 22, the cleaning liquid can be easily transmitted in the direction in which the second inclined surface 86 slopes downward by using the gravitational force of the cleaning liquid's own weight. Therefore, compared to the case where the toilet seat 22 does not have the second inclined surface 86 , the cleaning liquid can be easily delivered to a wide range of the back surface of the toilet seat 22 .

From the viewpoint of obtaining these effects, the angle θ formed by the first inclined surface 82 with respect to the horizontal plane is preferably set within the range of 1° to 15°. If the angle θ is less than 1°, the force component Fg2 in the downward slope direction of the first inclined surface 82 becomes insufficient, and it becomes difficult to propagate the cleaning liquid in the downward slope direction. If the first slope exceeds 15°, the dimension of the toilet seat 22 in the up-down direction Z becomes too large, resulting in an increase in the size of the toilet seat 22 . From this point of view, the angle θ is more preferably set within the range of 3° to 8°. For the same reason as the angle .theta. It is set within the range of ° to 8°.

As shown in FIG. 14, the rear surface of the toilet seat 22 is provided with a peak portion 88 formed at least partially by the lower end portion of the first inclined surface 82 and the lower end portion of the second inclined surface 86 . Therefore, the cleaning liquid flowing in the direction in which the first inclined surface 82 slopes down and the cleaning liquid flowing in the direction in which the second sloped surface 86 slopes downward can be easily drained off by the mountain portion 88 . For this reason, it becomes easier to control so that part of the cleaning liquid flowing along the first inclined surface 82 and the second inclined surface 86 drops into the toilet bowl portion 12 of the toilet body 14 below near the mountain portion 88 . As a result, it becomes easier to control the location where the cleaning liquid lands in the toilet bowl 12, and it becomes easier to wash the inside of the toilet bowl 12 with the cleaning liquid within a range including the location where the cleaning liquid lands.

The first inclined surface 82 of the present embodiment is provided in a range including at least the central portion Rb in the front-rear direction Y of the right half region 38R of the toilet seat 22 to the front circumferential end portion 38Ra. Therefore, by using such a first inclined surface 82, the cleaning liquid discharged from the first discharge portion 50A can reach the front circumferential end portion 38Ra of the right half region 38R, which is difficult to reach. It becomes easy to hang.

In addition, the second inclined surface 86 is provided in a range including at least the central portion Lb in the front-rear direction Y of the left half region 38L of the toilet seat 22 to the front circumferential end portion 38La. Therefore, by using such a second inclined surface 86, the cleaning liquid discharged from the second discharge portion 50B can be delivered to the front circumferential end portion 38La of the left half region 38L, where the cleaning liquid is difficult to reach. It becomes easy to hang.

(2) A second devised point of the toilet device 10 will be described. As shown in FIG. 2 , the first casing 24 is arranged behind the toilet bowl 12 so as to avoid overlapping the inner surface of the toilet bowl 12 in the vertical direction Z. As shown in FIG. A portion of the second casing 26 is arranged at a position overlapping the inner surface of the toilet bowl 12 in the vertical direction.

FIG. 16 is a front view of the second casing 26 of FIG. 2 as seen from the front. 17 is a side sectional view of the second casing 26 passing through the first discharge portion 50A of FIG. 16. FIG. The second casing 26 functions as a housing member that houses functional components inside. The functional parts here are for exhibiting predetermined functions associated with the toilet device 10 . The functional parts include the seat back discharge parts 50A and 50B described above and the on-off valves 126A, 126B and 126D described later.

The second casing 26 has a protruding portion 26 a that protrudes above the inner surface of the toilet bowl portion 12 from the upper end opening 12 b of the toilet bowl portion 12 . The protruding portion 26a is provided with a projecting portion 26b protruding downward from the protruding portion 26a. The projecting portion 26b is arranged below the upper end opening 12b of the toilet bowl portion 12 . The rear surface portion of the projecting portion 26b is formed in an outer shape that matches the outer shape of the inner peripheral surface of the upper edge portion 12a of the toilet bowl portion 12, and is arranged along the inner peripheral surface. The projecting portion 26b is fitted inside the rear portion of the upper edge portion 12a of the toilet bowl portion 12 . A slope portion 26c that faces obliquely downward toward the front is formed on the front surface portion of the projecting portion 26b.

18 is a diagram showing another state of the second casing 26 of FIG. 16. FIG. 11 is also a side cross-sectional view of the second casing 26 passing through the first discharge portion 50A of FIG. FIG. 19 is a perspective view of the configuration around the first ejection portion 50A in FIG. 18 as viewed from below. 11 and 16 to 19 will be mainly referred to below.

Openings 102A and 102B are formed in the lower surface of the second casing 26 . The openings 102A and 102B are formed in the slope portion 26c of the second casing 26. As shown in FIG. The openings 102A and 102B include a first opening 102A corresponding to the first ejection portion 50A and a second opening 102B corresponding to the second ejection portion 50B. The first opening 102A is provided above the right half of the toilet body 14, and the second opening 102B is provided above the left half of the toilet body 14. As shown in FIG.

The toilet device 10 includes shutters 104A and 104B capable of opening and closing openings 102A and 102B of the second casing 26 . The shutters 104A and 104B include a first shutter 104A corresponding to the first ejection section 50A and a second shutter 104B corresponding to the second ejection section 50B. The first shutter 104A can open and close the first opening 102A, and the second shutter 104B can open and close the second opening 102B. Since the first shutter 104A and the first opening 102A and the second shutter 104B and the second opening 102B have most of the same configuration, the common configuration will be described with reference to the drawing showing the former.

As shown in FIGS. 11 and 17, shutters 104A and 104B are attached to second casing 26 so as to open and close openings 102A and 102B of second casing 26 . The shutters 104A and 104B have a body portion 104a capable of opening and closing the openings 102A and 102B, and a plurality of shaft fixing portions 104b protruding from the rear surface of the body portion 104a. This figure shows only a single shaft fixing portion 104b.

The body portion 104a has a plate-like shape elongated in the left-right direction Y. As shown in FIG. A rotating shaft 106 is fixed to the distal end portion of the plurality of shaft fixing portions 104b so as to pass through the shaft fixing portions 104b. The rotating shaft 106 is rotatably supported by a shaft support portion 26d provided inside the second casing 26. As shown in FIG. The shutters 104A and 104B of this embodiment are attached to the second casing 26 (accommodating member) through the rotation shaft 106 so as to be rotatable around the rotation shaft 106 . The rotation shaft 106 of this embodiment extends along the horizontal direction. The shutters 104A and 104B open the openings 102A and 102B by rotating in one direction Pg1 about the rotating shaft 106, and close the openings 102A and 102B by rotating in the opposite direction Pg2.

The shutters 104A and 104B have a concealing position Pf1 (see FIGS. 16 and 17) that hides the ejection holes 74 of the corresponding ejection portions 50A and 50B from the outside, and an exposure position Pf2 (see FIG. 17) that exposes the ejection holes 74 to the outside. 11, see FIG. 18). The shutters 104A and 104B of the present embodiment close the openings 102A and 102B of the second casing 26 which they themselves open and close when they are in the concealed position Pf1. hide from. The shutters 104A and 104B of this embodiment open the openings 102A and 102B when they are at the exposure position Pf2, and by opening the openings 102A and 102B, the ejection holes 74 are exposed to the outside. When the shutters 104A and 104B are at the exposure position Pf2, the cleaning liquid discharged from the discharge holes 74 of the discharge portions 50A and 50B corresponding to the shutters 104A and 104B can be applied to the back surface of the toilet seat 22.

As shown in FIG. 17, when the shutters 104A and 104B are located at the concealed position Pf1, the shutters 104A and 104B restrict entry of droplets from the outside into the ejection holes 74 of the corresponding ejection portions 50A and 50B. The shutters 104A and 104B of the present embodiment close the openings 102A and 102B that are opened and closed by themselves when they are in the concealed position Pf1, thereby restricting droplets from entering the openings 102A and 102B from the outside.

The movable range of the shutters 104A and 104B of the present embodiment is regulated by contacting the upper edges of the openings 102A and 102B that are part of the openings 102A and 102B that the shutters 104A and 104B open and close, and the openings 102A and 102B are closed. held in the closed position. As shown in FIG. 11, the shutters 104A and 104B of the present embodiment are restricted in their movable range by contacting the lower edges of the openings 102A and 102B that are part of the openings 102A and 102B that they themselves open and close. 1 is held in the open position to open the opening 102A.

As shown in FIG. 5, the toilet device 10 includes drive mechanisms 108A, 108B drivable to move the shutters 104A, 104B between the concealed position Pf1 and the exposed position Pf2. The drive mechanisms 108A and 108B include a first drive mechanism 108A corresponding to the first shutter 104A and a second drive mechanism 108B corresponding to the second shutter 104B. The drive mechanisms 108A and 108B are configured using, for example, drive sources such as motors. The drive mechanisms 108A and 108B of this embodiment are arranged inside the second casing 26 . The drive mechanisms 108A and 108B of this embodiment drive the shutters 104A and 104B by rotating the shutters 104A and 104B around the rotation shaft 106 together with the rotation shaft 106 .

As shown in FIGS. 11 and 17, the discharge sections 50A and 50B of the present embodiment are integrated with the corresponding shutters 104A and 104B. As used herein, "integral" means that the two elements being referred to are movable together, whether or not the two elements are part of the same member. . The ejection sections 50A and 50B of the present embodiment are configured as part of the same member as the shutters 104A and 104B corresponding thereto. As a result, the number of parts can be reduced by using separate members for the ejection portions 50A and 50B and the shutters 104A and 104B, and the number of assembly man-hours can be reduced, thereby reducing the product cost.

Discharge parts 50A and 50B are rotatably attached to second casing 26 via shutters 104A and 104B and rotating shaft 106 . By rotating around the rotation shaft 106, the discharge sections 50A and 50B can move forward and backward with respect to the corresponding openings 102A and 102B. Specifically, the ejection portions 50A and 50B rotate in one direction Pg1 around the rotation shaft 106 to move to the advance position Ph1 where they advance outside from the openings 102A and 102B. Further, the ejection portions 50A and 50B rotate in the other direction Pg2 around the rotation shaft 106 to move to the retreat position Ph2 where they are retreated inside from the opening portions 102A and 102B.

As shown in FIGS. 11 and 19, the ejection portions 50A and 50B correspond to the hole forming portion 110 in which the ejection holes 74 for ejecting the cleaning liquid are formed, and the ejection portions 50A and 50B at the advance position Ph1. and a blocking portion 112 that blocks the openings 102A and 102B.

The hole forming portion 110 has an outlet side portion 110a formed at the downstream end thereof with a cleaning liquid outlet 76 through which the cleaning liquid flows, and an inlet side portion 110b for guiding the cleaning liquid supplied from the upstream side to the outlet side portion 110a on the downstream side. and The outlet side portion 110a and the inlet side portion 110b are cylindrical. The exit side portion 110a and the entrance side portion 110b of this embodiment are connected via a bent portion 110c and extend linearly. The exit side portion 110a extends in the in-plane direction of the plate-shaped shutters 104A and 104B. Inlet side portion 110b extends from bent portion 110c in a direction away from shutters 104A, 104B.

The outlet side portion 110a is formed with the first portion 74a and the second portion 74b (see FIG. 12). The outlet side portion 110a penetrates through a front wall portion 112a (described later) of the closing portion 112, and is provided so as to protrude from the front wall portion 112a. A hose 114 in which a part of a liquid supply passage (to be described later) is formed is connected to the inlet side portion 110b. The hose 114 is flexible and housed inside the second casing 26 .

When the ejection portions 50A and 50B are at the advanced position Ph1, the blocking portion 112 completely covers the opening portions 102A and 102B so that droplets do not enter the opening portions 102A and 102B corresponding to the ejection portions 50A and 50B from the outside. blocking. The blocking portion 112 has a front wall portion 112a extending along the axial direction (horizontal direction Y) of the rotating shaft 106, and an axial end portion of the front wall portion 112a extending in the direction opposite to the ejection direction Pc of the ejection portions 50A and 50B. and a side wall portion 112b extending toward the side.

The front wall portion 112a faces the vertical edge (upper edge in this example) of the openings 102A and 102B in the vertical direction Z when the ejection portions 50A and 50B advance and retreat through the openings 102A and 102B. set to pass. The side wall portion 112b faces the edge portion of the opening portions 102A and 102B in the left-right direction Y in the axial direction (left-right direction Y) of the rotating shaft 106 described above when the discharge portions 50A and 50B advance and retreat through the opening portions 102A and 102B. It is provided so as to pass through the position where

The effect of the second contrivance will be described. According to the toilet device 10 described above, the ejection holes 74 of the ejection portions 50A and 50B are concealed by the shutters 104A and 104B positioned at the concealed position Pf1, thereby preventing droplets from entering the ejection holes 74 and providing a good effect. Hygienic.

The shutters 104A, 104B close the openings 102A, 102B of the second casing 26 when in the concealed position Pf1. Therefore, the shutters 104A and 104B can prevent droplets from entering the second casing 26, and better sanitation can be obtained.

The discharge parts 50A and 50B can move forward and backward with respect to the openings 102A and 102B of the second casing 26 by rotating around the rotating shaft 106 . Therefore, the openings 102A and 102B of the second casing 26 can be advanced and retracted by moving the discharge portions 50A and 50B straight (see FIG. 39). Miniaturization is possible. Accordingly, it is possible to reduce the space required for accommodating the discharge portions 50A and 50B within the second casing 26 (accommodating member).

The ejection sections 50A and 50B have closing portions 112 that close the openings 102A and 102B corresponding to the ejection sections 50A and 50B when the ejection sections 50A and 50B are at the advanced position Ph1. Therefore, even when the discharge portions 50A and 50B are at the advanced position Ph1, droplets can be prevented from entering the openings 102A and 102B of the second casing 26, and better hygiene can be obtained.

(3) A third devised point of the toilet device 10 will be described. FIG. 20 is a block diagram showing part of the functions of the toilet device 10. As shown in FIG. The toilet device 10 (toilet seat unit 16 ) of the present embodiment further includes a liquid supply path 120 , a switching mechanism 122 and a controller 124 .

As shown in FIGS. 5 and 20, the liquid supply path 120 serves as a path for the cleaning liquid supplied from a liquid supply source (not shown) such as a tank to the discharge sections 50A and 50B. The liquid supply path 120 is configured by a liquid path forming member such as a hose. The liquid supply path 120 has a first liquid path 120a for supplying the cleaning liquid to the first ejection section 50A and a second liquid path 120b for supplying the cleaning liquid to the second ejection section 50B. The liquid supply channel 120 of this embodiment has a common liquid channel 120c to which cleaning liquid is supplied from the upstream side, and the first liquid channel 120a and the second liquid channel 120b branch off from the common liquid channel 120c.

The switching mechanism 122 can switch whether or not the cleaning liquid is supplied through the liquid supply path 120 to the plurality of discharge sections 50A and 50B. The switching mechanism 122 of this embodiment includes a first on-off valve 126A provided in the middle of the first fluid path 120a, a second on-off valve 126B provided in the middle of the second fluid path 120b, and a common fluid path 120c. and a common on-off valve 126C. The first on-off valve 126A and the second on-off valve 126B are housed inside the second casing 26 .

A common on-off valve 126</b>C is arranged outside the second casing 26 . The common on-off valve 126C of this embodiment is housed inside the toilet body 14, although not shown. Since the common on-off valve 126C closes the common liquid path 120c, the supply pressure applied to the cleaning liquid stops acting on the first on-off valve 126A and the second on-off valve 126B. Along with this, the on-off valves 126A and 126B can be miniaturized, and the second casing 26 that accommodates them can be miniaturized.

The switching mechanism 122 switches the open/closed states of the plurality of on-off valves 126A to 126C to switch the supply of the cleaning liquid to the plurality of ejection portions 50A and 50B to one of the following supply stop state, first supply state, and second supply state. The supply state can be switched. In the first supply state, the cleaning liquid supplied to the first ejection portion 50A is ejected from the first ejection portion 50A. In the second supply state, the cleaning liquid supplied to the second ejection portion 50B is ejected from the second ejection portion 50B.
(Supply stopped state) This is a state in which the supply of the cleaning liquid is stopped.
(First Supply State) This is a state in which the cleaning liquid is supplied through the first liquid passage 120a of the liquid supply passage 120 to the first discharge portion 50A.
(Second supply state) A state in which the cleaning liquid is supplied through the second liquid passage 120b of the liquid supply passage 120 to the second ejection portion 50B.

In the switching mechanism 122 of the present embodiment, the common on-off valve 126C closes the common liquid passage 120c of the liquid supply passage 120 when the supply is stopped. In the first supply state, the common on-off valve 126C opens the common fluid path 120c, the first on-off valve 126A opens the first fluid path 120a, and the second on-off valve 126B closes the second fluid path 120b. there is In the second supply state, the common on-off valve 126C opens the common fluid path 120c, the second on-off valve 126B opens the second fluid path 120b, and the first on-off valve 126A closes the first fluid path 120a. there is

The control unit 124 can control some components of the toilet device 10 . The control unit 124 of this embodiment can control the switching mechanism 122 . The control unit 124 is a one-chip microcomputer or the like, and is configured by combining a CPU, a RAM, a ROM, and the like. The controller 124 of this embodiment is arranged outside the second casing 26 .

When a predetermined cleaning start condition is satisfied, control unit 124 controls switching mechanism 122 to perform a cleaning operation for cleaning the back surface of toilet seat 22 . The cleaning start condition includes, for example, receiving a cleaning start command through operation of an operation member such as a lever or an electric device such as a remote controller or a smartphone.

The control unit 124 executes one cleaning operation by controlling the switching mechanism 122 so as to perform the following series of operations. This series of operations is to maintain the first supply state in which the cleaning liquid is supplied to the first discharge section 50A for a predetermined first liquid supply time, and then perform the second discharge for a predetermined second liquid supply time. The second supply state in which the cleaning liquid is supplied to the portion 50B is maintained. The operation in which the first ejection portion 50A ejects the cleaning liquid along the back surface of the toilet seat 22 is referred to as the first ejection operation, and the operation in which the second ejection portion 50B ejects the cleaning liquid along the back surface is referred to as the second ejection operation. At this time, the control unit 124 of the present embodiment executes the second discharge operation without executing the second discharge operation while the first discharge operation is being executed in one cleaning operation. During this period, the switching mechanism 122 is controlled so as not to execute the first ejection operation. Here, "the operation of discharging the cleaning liquid by the discharge sections 50A and 50B so as to run along the back surface of the toilet seat 22" includes the operation of the discharge sections 50A and 50B discharging the cleaning liquid that flows down without running along the back surface of the toilet seat 22. do not have.

After ending the first supply state in which the cleaning liquid is supplied to the first ejection section 50A, the control section 124 causes the switching mechanism 122 to start the second supply state in which the cleaning liquid is supplied to the second ejection section 50B. will control. The toilet device 10 (toilet seat unit 16) is configured to start the second discharge operation after completing the first discharge operation.

At this time, the control unit 124 controls the switching mechanism 122 so as to start the second supply state after a predetermined standby time has passed after the first supply state ends. The control unit 124 controls the switching mechanism 122 so as to start the second ejection operation after the standby time has elapsed after the above-described first ejection operation is finished. This standby time is set to avoid collision between the cleaning liquid discharged from the first discharging section 50A and the cleaning liquid discharged from the second discharging section 50B on the back surface of the toilet seat 22 . This standby time is set to, for example, 0.5 seconds or more and 3.0 seconds or less, preferably 1.0 seconds or more and 2.0 seconds or less.

The effect of the third contrivance will be described. FIG. 21(a) is a diagram showing a state in which the first ejection operation and the second ejection operation are performed simultaneously. In this case, the first seat underflow Fa formed by the cleaning liquid discharged from the first discharge section 50A collides with the second seat backflow Fb formed by the cleaning liquid discharged from the second discharge section 50B on the back surface of the toilet seat 22. there is a possibility. In this embodiment, there is a possibility of collision mainly in the front end region 39 of the back surface of the toilet seat 22 .

On the other hand, the toilet seat unit 16 is configured to start the second discharge operation as shown in FIG. 21(c) after the first discharge operation as shown in FIG. 21(b) is completed. . Accordingly, even if the cleaning liquid ejected from the first ejection section 50A collides with the cleaning liquid ejected from the second ejection section 50B, the collision time can be shortened. Therefore, it is possible to suppress the generation of droplets due to the collision of the cleaning liquid discharged from the plurality of discharging portions 50A and 50B.

The plurality of discharge portions 50A and 50B include a first discharge portion 50A and a second discharge portion 50B that discharge the cleaning liquid so as to be transmitted along the back surface of the toilet seat 22 in opposite circumferential directions. Therefore, it is possible to form the first seat back flow Fa and the second seat back flow Fb that run along the areas that partially overlap each other on the back surface of the toilet seat 22, and there is an advantage that the areas can be washed effectively.

Other features related to the third contrivance will be described. As described above, the toilet device 10 (toilet seat unit 16) includes a first shutter 104A corresponding to the first ejection portion 50A and a second shutter 104B corresponding to the second ejection portion 50B, as shown in FIGS. and The toilet device 10 includes a first driving mechanism 108A corresponding to the first shutter 104A and a second driving mechanism 108B corresponding to the second shutter 104B. The drive mechanisms 108A, 108B are capable of driving their corresponding shutters 104A, 104B. The aforementioned control unit 124 can also control the first drive mechanism 108A and the second drive mechanism 108B.

FIG. 22(a) shows the operation state of the first shutter 104A and the second shutter 104B, and FIG. 22(b) shows another operation state. As shown in FIG. 22(a), the control unit 124 controls the second drive mechanism 108B to move the second shutter 104B to the concealed position Pf1 while the first ejection unit 50A is ejecting the cleaning liquid. . At this time, the controller 124 controls the first drive mechanism 108A to move the first shutter 104A to the exposure position Pf2.

Further, as shown in FIG. 22(b), the control unit 124 operates the first drive mechanism 108A so as to move the first shutter 104A to the concealed position Pf1 while the second ejection unit 50B is ejecting the cleaning liquid. Control. At this time, the controller 124 controls the second drive mechanism 108B to move the second shutter 104B to the exposure position Pf2.

As a result, when one of the first ejection portion 50A and the second ejection portion 50B is ejecting the cleaning liquid, the droplets of the cleaning liquid flow into the ejection hole 74 of the other ejection portion 50A or 50B. It becomes difficult to enter, and good hygiene can be obtained.

Note that after the movement of the first shutter 104A from the concealed position Pf1 to the exposed position Pf2 is completed, the control unit 124 causes the switching mechanism 122 to start the first supply state in which the cleaning liquid is discharged from the first discharge unit 50A. may be controlled. Further, after the movement of the second shutter 104B from the exposure position Pf2 to the concealment position Pf1 is completed, the control unit 124 causes the switching mechanism 122 to start the first supply state in which the cleaning liquid is discharged from the first discharge unit 50A. may be controlled.

(4) A fourth feature of the toilet device 10 will be described. FIG. 23(a) is an explanatory diagram showing the first seat underflow Fa, and FIG. 23(b) is an explanatory diagram showing the first bowl internal flow Fc. FIG. 24(b) is an explanatory diagram showing the second seat underflow Fb, and FIG. 24 is an explanatory diagram showing the second bowl inside flow Fd. 23(a) and 24(a) are plan views of the toilet seat 22 and the toilet body 14, and FIGS. 24(b) and 24(b) are plan views of the toilet body 14. FIG.

The toilet device 10 (toilet seat unit 16) is configured to satisfy the following condition (a). This condition (a) is to satisfy the following condition (a1) and condition (a2). In condition (a1), as shown in FIGS. 6 and 23(a), the cleaning liquid discharged from the first discharging portion 50A forms a first seat underflow Fa that travels along one side Pa in the circumferential direction on the back surface of the toilet seat 22. It is to be. Condition (a2), as shown in FIG. 23(b), uses the cleaning liquid that forms the first seat backflow Fa to turn to one side Pa in the circumferential direction within the toilet bowl portion 12 of the toilet body 14. It is to form a single-bowl flow Fc. This figure shows a main range Sf in which the cleaning liquid forming the first seat back flow Fa is propagated within the toilet bowl portion 12 .

Moreover, the toilet device 10 (toilet seat unit 16) is configured to satisfy the following condition (b). This condition (b) is to satisfy the following condition (b1) and condition (b2). In the condition (b1), as shown in FIGS. 7 and 24(a), the cleaning liquid discharged from the second discharging portion 50B forms a second seat underflow Fb that travels along the other side Pb in the circumferential direction on the back surface of the toilet seat 22. It is to be. Condition (b2), as shown in FIG. 24(b), uses the cleaning liquid that forms the second seat back flow Fb to swirl toward the other side Pb in the circumferential direction within the toilet bowl portion 12 of the toilet body 14. It is to form the second in-bowl flow Fd. This figure shows a main range Sg in which the cleaning liquid forming the second seat back flow Fb propagates within the toilet bowl portion 12 .

The first seat back flow Fa of the present embodiment is formed in a range including the rear portion of the right half region 38R of the back surface of the toilet seat 22 to the front circumferential end portion 38Ra (see FIG. 6). The second seat underflow Fb of the present embodiment is formed in a range including the rear portion of the left half region 38L of the back surface of the toilet seat 22 to the front circumferential end portion 38La. Most of the cleaning liquid that forms the first seat back flow Fa and the second seat back flow Fb drips down on the back surface of the toilet seat 22 with a horizontal velocity component. Most of the cleaning liquid of this embodiment drips down from the ridges 88 provided on the back surface of the toilet seat 22 and the vicinity of the ridges 88, as described above.

The washing liquid that forms the seat back flows Fa and Fb drips down from the back surface of the toilet seat 22, hits the inner surface of the toilet bowl 12, and then flows with the momentum of the horizontal velocity component, resulting in the bowl flow Fc. , Fd. In plan view, the center Cq of the upper end opening of the toilet bowl portion 12 is the center Cq of the toilet bowl portion 12 . The first in-bowl flow Fc of the present embodiment flows from the front region on the front side of the center Cq of the toilet bowl 12 through the left half region on the left side of the center Cq of the toilet bowl 12. It is formed so as to flow into the bottom (see FIG. 23(b)). The second in-bowl flow Fd of the present embodiment flows from the front region of the toilet bowl 12 to the bottom of the toilet bowl 12 while passing through the right half region on the right side of the center Cq of the toilet bowl 12. formed (see FIG. 24(b)).

In order to satisfy the condition (a), the direction of discharge of the cleaning liquid from the first discharge section 50A with respect to the toilet seat 22 is set so that the cleaning liquid discharged from the first discharge section 50A is transmitted along the one side Pa in the circumferential direction of the back surface of the toilet seat 22. At least the relative position of the first ejection portion 50A is set. In order to satisfy the condition (b), the discharge direction of the cleaning liquid from the second discharge section 50B with respect to the toilet seat 22 is set so that the cleaning liquid discharged from the second discharge section 50B travels along the other side Pb in the circumferential direction along the back surface of the toilet seat 22. At least the relative position of the second ejection portion 50B is set. If the back flows Fa and Fb can be formed by this, the washing liquid forming the back flows Fa and Fb drips from the back surface of the toilet seat 22, and the dripped washing liquid flows in the toilet bowl portion 12, thereby causing the bowl flow. Fc, Fd can be formed.

As a result, while washing the back surface of the toilet seat 22 with the first seat back flow Fa, it is possible to form the first bowl flow Fc that cleans a wide range in the toilet bowl portion 12 with a small amount of washing liquid, thereby cleaning the back surface of the toilet seat 22 and the toilet bowl. The part 12 can be effectively cleaned.

In addition, while washing the back surface of the toilet seat 22 with the second seat back flow Fb, a second in-bowl flow Fd that cleans a wide area in the toilet bowl portion 12 with a small amount of washing liquid can be formed. 12 can be effectively washed. In particular, it is possible to wash an area that cannot be completely cleaned by the first seat back flow Fa with the second seat back flow Fb, and to clean an area that cannot be cleaned by the first inner flow Fc with the second inner flow Fd. There are advantages.

FIG. 25 is a diagram showing a part of the EE cross section of FIG. As shown in FIGS. 11 and 25 , the lower surface of the functional device 20 is provided with a second bowl facing surface 130 that faces the inner surface of the toilet bowl portion 12 of the toilet body 14 in the vertical direction Z. As shown in FIGS. The second bowl facing surface 130 is provided on the lower surface of the projecting portion 26b of the second casing 26. As shown in FIG. The second bowl-facing surface 130 is exposed to the internal space of the toilet bowl 12, and is easily soiled by adhesion of splashes and the like of waste received by the toilet bowl 12. - 特許庁

As shown in FIGS. 3 and 25, the ejection portions 50A to 50C of the toilet device 10 include a third ejection portion 50C capable of ejecting cleaning liquid from a plurality of liquid ejection holes 132A, 132B, and 132C. The third discharge part 50</b>C of this embodiment is provided on the lower surface of the functional device 20 , more specifically, on the lower surface of the protruding part 26 b of the second casing 26 . 50 C of 3rd discharge parts of this embodiment are provided so that it may protrude from the lower surface part of the 2nd casing 26 below. An arc-shaped outer peripheral surface portion 134 is provided in the third discharge portion 50C of the present embodiment. The outer peripheral surface portion 134 of this embodiment has an arcuate shape extending in the front-rear direction X. As shown in FIG. Cleaning liquid outlets of liquid ejection holes 132A to 132C through which the cleaning liquid flows out are opened in the outer peripheral surface portion 134 .

The third discharge part 50C of this embodiment is arranged above the right half of the toilet body 14 . Specifically, the third discharge portion 50C is arranged above the right half portion of the toilet body 14 located on the side (right side) opposite to the side (left side) where the second discharge portion B is located in the horizontal direction Y. The third ejection portion 50C of the present embodiment is arranged behind the first ejection portion 50A and the second ejection portion 50B.

26 is a cross-sectional view showing the internal structure of the third ejection portion 50C of FIG. 25. FIG. As shown in FIGS. 3, 25, and 26, the plurality of liquid discharge holes 132A, 132B, and 132C are provided with a bowl discharge hole 132A capable of discharging cleaning liquid downward into the toilet bowl portion 12 of the toilet body 14, 132B and a third liquid ejection hole 132C capable of ejecting the cleaning liquid in a direction different from the ejection direction of the cleaning liquid of the pot liquid ejection holes 132A and 132B.

The pot liquid discharge holes 132A and 132B include a plurality of first liquid discharge holes 132A and a plurality of second liquid discharge holes 132B. 132 A of several 1st liquid ejection holes are provided so that it may line up in the front-back direction X at row form. The same applies to the plurality of second ejection holes 132B and the plurality of third ejection holes 132C.

As shown in FIGS. 25 and 26, the first liquid ejection hole 132A of the present embodiment can eject the cleaning liquid having a vertical downward velocity component in the direction Pk1. The second liquid ejection hole 132B of the present embodiment can eject cleaning liquid having a horizontal velocity component and a downward velocity component in the direction Pk2.

FIG. 27 is an explanatory diagram showing flows Fe1 to Fe3 in the third bowl. FIG. 27 shows a main range Sh through which the cleaning liquid ejected by the third ejection portion 50C spreads.

The cleaning liquid discharged from the first liquid discharge hole 132A hits the inner peripheral surface of the toilet bowl portion 12 below the first liquid discharge hole 132A, and is guided to flow from there to the other side Pb in the circumferential direction. A third in-bowl flow Fe1 that swirls in the same direction is formed. The cleaning liquid discharged from the first liquid discharge hole 132A hits the inner peripheral surface of the toilet bowl 12 on the rear and right side of the center Cq of the toilet bowl 12 .

After hitting the inner peripheral surface of the toilet bowl 12, the cleaning liquid discharged from the second liquid discharge hole 132B flows while maintaining the momentum of the horizontal velocity component, thereby turning to the other side Pa in the circumferential direction. A three-bowl flow Fe2 is formed.

The third liquid ejection hole 132</b>C of the present embodiment can eject cleaning liquid along the second bowl facing surface 130 of the functional device 20 . The third liquid ejection hole 132C can eject cleaning liquid having an upward velocity component. The third liquid ejection hole 132C of the present embodiment ejects cleaning liquid having an upward velocity component and a horizontal velocity component.

The third liquid discharge hole 132C discharges the cleaning liquid along the second bowl facing surface 130 of the functional device 20 from the right side to the left side (from the left side to the right side of the paper surface of FIG. 25). As a result, the cleaning liquid discharged from the third liquid discharge holes 132C forms a back flow Fg that flows along the second bowl-facing surface 130 of the functional device 20 from the right side to the left side. FIG. 7 shows the range Si through which the cleaning liquid that forms the back surface flow Fg travels. Most of the cleaning liquid that forms the back surface flow Fg drips down on the left half of the second bowl-facing surface 130 of the functional device 20 with a horizontal velocity component. The washing liquid dripping down from the second bowl-facing surface 130 of the functional device 20 hits the inner peripheral surface of the toilet bowl portion 12, and then rotates to the other side Pa in the circumferential direction while maintaining the momentum of the horizontal velocity component. A three-bowl flow Fe3 is formed.

The third in-bowl flows Fe1 to Fe3 flow toward the bottom of the toilet bowl 12 while swirling around the center Cq of the toilet bowl 12 behind the center Cq of the toilet bowl 12 . The swirling direction of the third in-bowl flows Fe1 to Fe3 is the other side Pb in the circumferential direction, and the second in-bowl flow Fd ( 24) is the same as the turning direction.

20 and 26 are referred to. Cleaning liquid is supplied to the plurality of liquid ejection holes 132A to 132C of the third ejection portion 50C through a third liquid path 120d branched from the first liquid path 120a. The switching mechanism 122 described above has a third on-off valve 126D provided in the middle of the third fluid path 120d. When the second discharge portion 50B executes the discharge operation of discharging the cleaning liquid, the control portion 124 opens the third liquid passage 120d by the third on-off valve 126D, so that the third discharge portion 50C also discharges the cleaning liquid. to control the switching mechanism 122 to execute

FIG. 28 is an explanatory diagram showing the second intra-bowl flow Fd and the third intra-bowl flows Fe1 to Fe3. According to the control described above, when the third in-bowl flows Fe1 to Fe3 are formed in the toilet bowl 12 by the cleaning liquid discharged from the third discharging part 50C, the second in-bowl flows Fe1 to Fe3 are formed by the cleaning liquid discharged from the second discharging part 50B. Fd is also formed within the toilet bowl portion 12 . The third in-bowl flows Fe 1 to Fe 3 swirl in the same circumferential direction as the first in-bowl flow Fc, and join at the bottom of the toilet bowl 12 . As a result, a swirl flow Fh having a large velocity component in the circumferential direction is formed at the bottom of the toilet bowl 12, and the cleaning performance of the bottom of the toilet bowl 12 is improved. Further, when the waste in the toilet bowl portion 12 is discharged through the trap portion 70 using the siphon action, by forming such a swirling flow Fh with a large velocity component in the circumferential direction inside the toilet bowl portion 12, the siphon There is also an advantage that the effect can be obtained effectively.

The third in-vessel flows Fe1 to Fe3 flow with downward velocity components larger than the downward velocity component of the second in-vessel flow Fd. The second in-bowl flow Fd joins the third in-bowl flows Fe1 to Fe3 above the bottom of the toilet bowl 12, so that the second in-bowl flow Fd flows through the toilet bowl 12 without flowing into the bottom of the toilet bowl 12. It avoids the situation where it continues to turn, and makes it easier to discharge the waste at an early stage.

As a whole, the first in-bowl flow Fc, the second in-bowl flow Fd, and the third in-bowl flows Fe1 to Fe3 flow over the entire inner peripheral surface of the toilet bowl part 12, and the inside of the toilet bowl part 12 The entire area is cleaned with a cleaning liquid.

(5) A fifth feature of the toilet device 10 will be described. As described above, the discharge parts 50A to 50C are provided in the second casing 26 of the functional device 20 as shown in FIG. 5 and the like. The discharge parts 50A and 50B are provided at locations different from the toilet seat 22 of the toilet device 10 . The second casing 26 accommodates, as the functional component described above, a private part washing device 140 for washing the private part of a person sitting on the toilet seat 22 . The private part washing device 140 has a private part washing nozzle 142 (hereinafter simply referred to as nozzle 142) for discharging washing water for washing the private part of the seated person.

29 is a side cross-sectional view of second casing 26 through nozzle 142. FIG. A nozzle opening 144 is formed in the second casing 26 . The nozzle opening 144 of this embodiment is formed in the slope portion 26 c of the second casing 26 . A nozzle shutter 146 capable of opening and closing the nozzle opening 144 is attached to the second casing 26 . The nozzle shutter 146 of this embodiment has a plate shape elongated in the left-right direction Y. As shown in FIG. The nozzle shutter 146 of this embodiment is rotatably attached to the second casing 26 via a rotating shaft 148 . The rotating shaft 148 of this embodiment extends along the horizontal direction. The nozzle shutter 146 opens the nozzle opening 144 by rotating in one direction Pj1 around the rotating shaft 148, and closes the nozzle opening 144 by rotating in the opposite direction Pj2.

The nozzle 142 is provided so as to incline downward toward the front. A tip portion of the nozzle 142 is positioned below the nozzle 142, and a nozzle hole 142a for discharging washing water is formed in the tip portion. The nozzle 142 is driven by a nozzle driving mechanism (not shown) using a motor or the like so as to move forward and backward with respect to the nozzle opening 144 as the nozzle shutter 146 is opened and closed. The nozzle 142 is provided so as to be able to move forward and backward with respect to the nozzle opening 144 .

As shown in FIG. 3, the ejection portions 50A to 50C and the nozzle 142 are provided behind the center Cp of the toilet seat 22. As shown in FIG. These are provided behind the rear end 32a of the central opening 32 of the toilet seat 22 in this embodiment. Also, in this embodiment, they are housed in a series of internal spaces formed in the second casing 26 .

As shown in FIG. 5, the first ejection portion 50A is provided on the right side of the nozzle 142, which is one side in the horizontal direction Y. As shown in FIG. The second ejection portion 50B is provided on the left side, which is the other side in the horizontal direction Y, with respect to the nozzle 142 . The first ejection portion 50A and the second ejection portion 50B are arranged at positions overlapping the nozzles 142 in the left-right direction Y in plan view.

The ejection portions 50A to 50C are provided behind the front end portion 20a of the functional device 20. As shown in FIG. The discharge sections 50A and 50B of the present embodiment are provided so as to satisfy this condition when the shutters 104A and 104B are located at the concealed position Pf1 described above. A front end portion 20a of the functional device 20 is provided behind the center Cp of the toilet seat 22 (see FIG. 3). A front end portion 20 a of the functional device 20 is provided behind a rear end 32 a of the central opening 32 of the toilet seat 22 . The front end portion 20 a of the functional device 20 here refers to the front end portion of the second casing 26 . The discharge sections 50A to 50C are provided at positions hidden by the functional device 20 in plan view.

(E) Explain the effect of the fifth contrivance. The discharge parts 50A to 50C are provided in the second casing 26 of the functional device 20 instead of the toilet seat 22. As shown in FIG. Therefore, even when the cleaning liquid remains inside the discharge parts 50A and 50B, the weight of the cleaning liquid is not applied to the toilet seat 22, and the case where the load to be applied to move the toilet seat 22 increases can be avoided. In this embodiment, this means a case where the load to be applied to turn the toilet seat 22 to the standing position increases. It is possible to avoid an increase in the load to be applied for rotating to the standing position. Therefore, when washing the back surface of the toilet seat 22, the usability of the toilet seat 22 can be maintained.

In addition, the ejection portions 50A and 50B are provided behind the center Cp of the toilet seat 22 and on the left and right sides of the nozzle 142 . Therefore, compared to the case where the ejection portions 50A and 50B are provided in front of the center Cp of the toilet seat 22, the ejection portions 50A and 50B and the nozzle 142 can be provided in a concentrated portion of the functional device 20, and the functional device 20 can be made compact. can be achieved.

The ejection portions 50A and 50B include a first ejection portion 50A capable of ejecting cleaning liquid along the back surface of the toilet seat 22 toward one side Pa in the circumferential direction, and a first ejection portion 50A capable of discharging the cleaning liquid along the back surface of the toilet seat 22 toward the other side Pb in the circumferential direction. It includes a second ejection portion 50B capable of ejecting the cleaning liquid so as to flow along. Therefore, as described above, in a partial region (front end region 39) of the first bowl-facing surface 34 of the toilet seat 22, the first seat underflow Fa transmitted to one side Pa in the circumferential direction and the other side Pb in the circumferential direction The second seat back flow Fb that is transmitted to the air can be formed, and the area can be effectively cleaned.

In particular, the front end region 39 of the first bowl-facing surface 34 of the toilet seat 22 is likely to be splashed with the urine splashed by the toilet bowl portion 12 of the toilet body 14 and to be easily soiled. The first seat back flow Fa and the second seat back flow Fb can be formed in such a region, and there is an advantage in that dirt thereon can be easily washed off.

The ejection portions 50A to 50C are provided behind the front end portion 20a of the functional device 20. As shown in FIG. Therefore, when the inside of the toilet bowl portion 12 of the toilet body 14 is viewed from above, the discharge portions 50A to 50C are hidden by the functional device 20, making it difficult to see, and good design can be obtained.

Other features of the toilet device 10 are described. Please refer to FIG. A concave portion 150 is formed in the lower surface portion of the rear portion of the toilet seat 22 so as to be recessed upward. The concave portion 150 is arranged at a position overlapping in the vertical direction Z with a part of the upper surface portion of the functional device 20 . The recess 150 is formed in an outer shape that matches the outer shape of a portion of the upper surface of the functional device 20 and is arranged along the upper surface. As shown in FIG. 11, the discharge portions 50A to 50C are arranged at positions overlapping the concave portion 150 of the toilet seat 22 in the vertical direction Z. As shown in FIG.

The seat back discharge parts 50A and 50B are provided at a position away from the back surface of the toilet seat 22, and discharge the washing liquid in the discharge direction Pc so as to hit the back surface of the toilet seat 22 from that position. The seat back discharge parts 50A and 50B can discharge the cleaning liquid having an upward velocity component from the cleaning liquid outlet 76 . This means that the seat back discharge parts 50A and 50B can discharge the cleaning liquid so as to have an upward velocity component at least when it flows out of the cleaning liquid outlet 76 . It can be said that the ejection direction Pc of the seat back ejection portions 50A and 50B is set upward. The seat back discharge sections 50A and 50B of the present embodiment discharge cleaning liquid having a vertically upward velocity component and a horizontal velocity component. The seat back discharge portions 50A and 50B of the present embodiment discharge cleaning liquid having a horizontal velocity component larger than an upward velocity component.

FIG. 30(a) is a diagram schematically showing the cleaning liquid ejected by the first ejection section 50A. The washing liquid discharged from the seat back discharge parts 50A and 50B tends to have a velocity component in the vertical direction approaching zero under the influence of gravity, but hits the back surface of the toilet seat 22 before the velocity component becomes zero. The cleaning liquid discharged from the seat back discharge parts 50A and 50B hits the back surface of the toilet seat 22 while having an upward velocity component. It can be said that the toilet device 10 (toilet seat unit 16) is configured to satisfy this condition. In addition to the ejection direction Pc of the cleaning liquid from the seat back ejection sections 50A and 50B, the distance from the location where the cleaning liquid hits the back surface of the toilet seat 22 to the ejection sections 50A and 50B and the distance from the ejection sections 50A and 50B to A supply pressure or the like to be applied to the cleaning liquid to be supplied is set. The smaller the distance and the higher the supply pressure of the cleaning liquid, the easier it is to satisfy the above conditions.

Explain this advantage. FIG. 30(b) is a diagram schematically showing the cleaning liquid ejected by the first ejection section 50A of the second modified example. The first ejection section 50A of this example ejects cleaning liquid having only a horizontal velocity component. The first ejection section 50A in this example ejects cleaning liquid that does not have an upward velocity component. In this case, part of the cleaning liquid flowing out from the cleaning liquid outlet 76 of the first discharge portion 50A is affected by gravity and tends to flow downward without hitting the back surface of the toilet seat 22 . In particular, the part of the cleaning liquid that has flowed out from a position closer to the lower edge of the cleaning liquid outlet 76 has a stronger tendency to do so.

On the other hand, according to the present embodiment, as shown in FIG. 30(a), even if it is affected by gravity, it is easy to design so that most of it is applied to the back surface of the toilet seat 22. FIG. Therefore, compared to the example of FIG. 30(b), the amount of cleaning liquid flowing down the back surface of the toilet seat 22 without hitting the back surface of the toilet seat 22 is reduced, thereby increasing the amount of cleaning liquid flowing along the back surface of the toilet seat 22. The back surface of the toilet seat 22 can be washed effectively.

(6) A sixth devised point of the toilet device 10 will be described. FIG. 31 is an enlarged side view of a portion of the toilet seat unit 16. FIG. As described above, functional device 20 includes first casing 24 and second casing 26 . The first casing 24 has a base plate 160 installed on the top surface of the rear portion of the toilet body 14, and a case cover 162 assembled to the base plate 160 to cover the base plate 160 from above. In this figure, part of the case cover 162 is omitted.

FIG. 32 is a diagram schematically showing the positional relationship between the toilet seat 22 and the second casing 26. As shown in FIG. 33 is a perspective view of FIG. 32(b), and FIG. 34 is a perspective view of FIG. 32(c). The toilet seat 22 is rotatably attached to the first casing 24 via the first hinge mechanism 164 . As the toilet seat 22 rotates itself, it can be positioned in a laid down position (see FIG. 32(a)) in which it is laid down on the toilet body 14, and in an upright position (see FIGS. 32(b) and 32(c)). )) and can be moved to. In this specification, unless otherwise specified, the positional relationship of the toilet seat 22 will be described based on the toilet seat 22 being in the reclined position.

The second casing 26 is movably attached to the base plate 160 of the first casing 24 . The second casing 26 of this embodiment is rotatably attached to the first casing 24 via a second hinge mechanism 166 . The second casing 26 has a first position (see FIGS. 32(a) and 32(b)) where it is placed on the upper surface of the toilet body 14, and a position where at least the front part of the second casing 26 is above the first position. and the second position (see FIG. 32(c)). The second casing 26 of the present embodiment rotates to have a laid down position as a first position in which it is laid down on the toilet body 14 and a standing position as a second position in which it stands up with respect to the toilet body 14. It is possible to move between In this specification, the positional relationship of the second casing 26 will be described based on the second casing 26 being in the first position unless otherwise specified.

As shown in FIG. 31 , the second casing 26 is provided separately from the toilet seat 22 and is rotatably attached to the toilet body 14 via the first casing 24 . The second casing 26 has a body portion 26e provided with the first discharge portions 50A to 50C. The body portion 26 e is provided such that at least a portion thereof is positioned forward of the second hinge shaft 166 a of the second hinge mechanism 166 that serves as the rotation center of the second casing 26 . The second hinge shaft 166 a is provided so as to be positioned rearward of the toilet bowl portion 12 of the toilet body 14 and above the upper surface portion of the toilet body 14 . The body portion 26e of the second casing 26 of the present embodiment is provided so as to be positioned entirely forward of the second hinge shaft 166a. Further, the main body portion 26e of the second casing 26 is provided so that at least a portion of the main body portion 26e is positioned at a portion overlapping the toilet bowl portion 12 of the toilet body 14 in the vertical direction.

The body portion 26e of the second casing 26 is provided so as to be positioned above the second hinge shaft 166a when the second casing 26 is in the second position, as shown in FIG. 32(c). Although not shown, the body portion 26e of the present embodiment is provided so as to be positioned above the first casing 24 when the second casing 26 is at the second position.

33 and 34 are referred to. When the second casing 26 is at the first position, the second casing 26 is provided so as to cover the upper surface portion of the rear portion of the rim portion 18 of the toilet bowl portion 12 from above. In FIG. 33, the range Sj in which the rim portion 18 is covered by the second casing 26 is hatched. At this time, the second casing 26 is provided so as to cover a range Sj extending over the rear end 12c of the upper end opening 12b of the toilet bowl 12 in the front-rear direction X. As shown in FIG.

When the second casing 26 is at the second position, the upper surface of the rim portion 18 of the toilet bowl 12 is provided so as to be exposed in an annular continuous range. At this time, the upper surface portion of the rim portion 18 of the toilet body 14 is provided so that a range Sj extending over the rear end 12c of the upper end opening 12b of the toilet bowl portion 12 in the front-rear direction X is exposed.

The toilet seat unit 16 can partially expose the top surface of the toilet body 14 by rotating the second casing 26 instead of simply moving the second casing 26 upward. Therefore, when the second casing 26 is moved to the second position to expose a portion of the upper surface of the toilet body 14, most of the second casing 26 is not positioned above the exposed portion. Accordingly, the visibility of the exposed portion of the upper surface of the toilet body 14 is improved, and the cleaning property of the exposed portion is improved.

Further, when the second casing 26 is moved from the first position to the second position, the discharge portions 50A to 50C provided in the body portion 26e of the second casing 26 are moved upward. Therefore, when the second casing 26 is in the second position, a large area of the upper surface of the toilet body 14 is formed around the space occupied by the discharge portions 50A, 50B when the second casing 26 is in the first position. Sj can be exposed. Therefore, while the discharge portions 50A to 50C are incorporated in the second casing 26, the cleaning performance of the upper surface portion of the toilet body 14 is improved.

In addition, since the discharge portions 50A to 50C are provided not on the toilet seat 22 but on the second casing 26, the aforementioned effect (E) can be obtained.

Other features related to the sixth contrivance will be described. 35 is a view as seen from arrow F in FIG. 31. FIG. 36 is a sectional view showing an enlarged part of FIG. 35. FIG. 37 is a cross-sectional view taken along the line GG of FIG. 36. FIG. The second casing 26 is rotatably attached to the toilet body 14 via the first casing 24 using a second hinge mechanism 166 . The second hinge mechanism 166 has a second hinge shaft 166 a , a second hinge base portion 166 b provided on the first casing 24 , and a second hinge portion 166 c provided on the second casing 26 . The second hinge shaft 166a rotatably connects the second hinge portion 166c to the second hinge base portion 166b. The second casing 26 is connected to the toilet body 14 via the second hinge shaft 166a so as to be rotatable around the second hinge shaft 166a.

The second hinge shaft 166a is provided so as to be rotatable integrally with the second hinge portion 166c. The second hinge shaft 166a of this embodiment constitutes a part of the same member as the second hinge portion 166c, and is provided so as to protrude outward in the horizontal direction Y of the second hinge portion 166c.

The second hinge base portion 166b is hidden from the outside by the case cover 162 of the first casing 24 (see FIG. 31). The second hinge base portion 166b of the present embodiment is provided so as to protrude upward from the base plate 160 of the first casing 24. As shown in FIG. The second hinge base portion 166b of the present embodiment is formed with a shaft support hole 166d through which the second hinge shaft 166a is inserted and which rotatably supports the second hinge shaft 166a. 166 d of shaft support holes of this embodiment are provided so that it may open toward the inside of the left-right direction Y of the 2nd hinge base part 166b.

38 is a perspective view of the functional device 20. FIG. The second hinge portion 166c is provided so as to protrude rearward from the body portion 26e of the second casing 26 when the second casing 26 is in the first position (the laid down position). A plurality (two) of the second hinge portions 166c are provided on the first casing 24 at intervals in the horizontal direction Y. As shown in FIG.

The front portion of the first casing 24 is provided with a hinge accommodating portion 24a that accommodates the second hinge portion 166c. The hinge accommodating portion 24a is individually provided corresponding to each of the plurality of second hinge portions 166c. The hinge accommodating portion 24a is provided so as to be recessed rearward from the front portion of the first casing 24 . An opening 24b is formed in the hinge accommodating portion 24a of the present embodiment so as to open forward and upward. The second hinge portion 166c is housed so as to be fitted into the hinge housing portion 24a when the second casing 26 is at the first position. At this time, the upper surface portion of the second hinge portion 166c of the second casing 26 is provided so as to be flush with the upper surface portion of the first casing 24 . In this embodiment, the upper surface of the body portion 26 e of the second casing 26 is also provided so as to be flush with the upper surface of the first casing 24 .

As shown in FIG. 5, inside the second hinge mechanism 166, the liquid supply path 120 described above is provided for supplying cleaning liquid from the outside of the second casing 26 to the inside. A part of the first liquid passage 120a of the liquid supply passage 120 for supplying the cleaning liquid to the first discharge portion 50A is provided inside one of the two second hinge mechanisms 166, the second hinge mechanism 166. . A part of the second liquid passage 120b of the liquid supply passage 120 for supplying the cleaning liquid to the second discharge portion 50B is provided inside the second hinge mechanism 166 on the other side.

36 and 37 are referred to. Part of the liquid supply path 120 is formed in each of the second hinge shaft 166a, the second hinge base portion 166b, and the second hinge portion 166c, which are components of the second hinge mechanism 166. As shown in FIG. A part of this liquid supply path 120 is not constituted by a hose in this embodiment.

The second hinge shaft 166a is provided with a first fluid path forming surface 172A extending along the axial direction of the second hinge shaft 166a. The first liquid path forming surface 172A opens toward the side where the second hinge base portion 166b is located in the axial direction of the second hinge shaft 166a (the left side in the paper surface of FIG. 36), and the opposite side in the axial direction. A bottomed hole that closes toward (the right side of the paper surface of FIG. 36) is constructed.

The second hinge base portion 166b is provided with a second fluid path forming surface 172B that forms an internal space that continues to the internal space of the first fluid path forming surface 172A of the second hinge shaft 166a. The second fluid path forming surface 172B has an upstream portion 172Ba extending radially outward of the second hinge shaft 166a and a downstream portion 172Bb extending along the axial direction of the second hinge shaft 166a. A downstream portion 172Bb of the second liquid path forming surface 172B is formed on the far side of the shaft support hole 166d.

The second hinge portion 166c is provided with a second fluid path forming surface 172C that forms an internal space continuing to the internal space of the first fluid path forming surface 172A of the second hinge shaft 166a. The second fluid path forming surface 172C extends outward in the radial direction of the second hinge shaft 166a, and its terminal end is connected to a fluid path forming member such as a hose.

Since the liquid supply path 120 is provided inside the second hinge mechanism 166 of the present embodiment, the space occupied by the components of the second hinge mechanism 166 is used to supply the cleaning liquid into the second casing 26. become able to.

In particular, in this embodiment, liquid passage forming surfaces 172A to 172C that form part of the liquid supply passage 120 are provided in the components of the second hinge mechanism 166. As shown in FIG. If a hose is passed through the inside of the second hinge mechanism 166 and the liquid supply path 120 is provided in the hose, the hose will be twisted as the second casing 26 rotates. In this respect, according to the present embodiment, there is an advantage that a part of the liquid supply passage 120 can be provided inside the second hinge mechanism 166 without taking any countermeasure against twisting of the hose.

Other features of the toilet seat unit 16 will be described. As shown in FIGS. 31 and 36, the toilet seat unit 16 includes a cable 174 routed through the interiors of the first casing 24 and the second casing 26 . The cable 174 connects the on-off valve 126</b>A and the like, which are functional components inside the second casing 26 , and the control section 124 as an electronic component arranged outside the second casing 26 . The control unit 124 supplies control signals and power to the on-off valve 126A through the cable 174 .

A cable insertion hole 166e for inserting the cable 174 is formed in the second hinge portion 166c of the second hinge mechanism 166 . The cable insertion hole 166e of this embodiment is formed so as to extend along the same direction as the extending direction of the second liquid path forming surface 172C of the second hinge portion 166c.

The toilet seat 22 is rotatably attached to the toilet body 14 through the base plate 160 of the first casing 24 using the first hinge mechanism 164, as shown in FIG. The first hinge mechanism 164 includes a first hinge shaft 164a which is rotatably provided integrally with the toilet seat 22, and a base plate 160 of the first casing 24, which rotatably supports the first hinge shaft 164a. 1 hinge base portion 164b. The toilet seat 22 is connected to the toilet body 14 via the first hinge shaft 164a so as to be rotatable around the first hinge shaft 164a.

The first hinge base portion 164b is exposed without being hidden by the case cover 162 of the first casing 24, as shown in FIG. The first hinge base portion 164b of the present embodiment is provided so as to protrude upward from the upper surface portion of the first casing 24 and has a tubular shape extending in the left-right direction Y. As shown in FIG.

As shown in FIG. 32, the second hinge shaft 166a is arranged forward of the first hinge shaft 164a. As a result, as shown in FIG. 32(c), when the toilet seat 22 is in the upright position and the second casing 26 is in the second position (upright position), the positions of the toilet seat 22 and the second casing 26 are moved forward and backward in the X direction. can be shifted to each other, making it easier to design so as to avoid interference between the two. The second hinge shaft 166a of this embodiment is arranged below the first hinge shaft 164a.

As shown in FIGS. 2 and 38, the first casing 24 is formed with a relief portion 24c for avoiding interference with the rear end portion of the toilet seat 22 when the toilet seat 22 is rotated to the upright position. The relief portion 24c of the present embodiment is a concave portion provided in the upper surface portion of the first casing 24 and recessed downward. A toilet lid 176 is attached to the first casing 24 via a first hinge shaft 164a common to the toilet seat 22 so as to be rotatable on the toilet body 14 .

Other features of the toilet device 10 are described. As described above, the toilet seat unit 16 has a first ejection section 50A, a second ejection section 50B, and a third ejection section 50C capable of ejecting cleaning liquid. The first discharge part 50A to the third discharge part 50C clean the inside of the toilet bowl part 12 of the toilet body 14 by forming the bowl flows Fc, Fd, and Fe1 to Fe3 with the cleaning liquid discharged from them. It can be said that the first discharge portion 50A to the third discharge portion 50C are capable of discharging the washing liquid for washing the toilet bowl portion 12 .

As shown in FIG. 2 , the upper portion of the toilet bowl 12 is not provided with a discharge portion capable of discharging cleaning liquid for cleaning the toilet bowl 12 . In this embodiment, the toilet bowl 12 is not provided with a discharge part, but the discharge parts 50A, 50B, and 50C provided in the toilet seat unit 16 are used to clean the toilet bowl 12 . The upper portion of the toilet bowl portion 12 of this embodiment is continuous in the circumferential direction around the vertical line passing through the center Cq (see FIG. 23) of the upper end opening 12b of the toilet bowl portion 12 . In addition, in the present embodiment, the lower portion of the toilet bowl portion 12 is not provided with a discharge portion capable of discharging the cleaning liquid.

(F1) As a result, there is no discharge part in the upper part of the toilet bowl part 12, so that the inner peripheral surface of the upper part of the toilet bowl part 12 can be easily wiped in the circumferential direction without getting stuck, and the toilet bowl part 12 can be cleaned easily. becomes. Moreover, since there is no discharge part in the upper part of the toilet bowl part 12, the inner peripheral surface of the upper part of the toilet bowl part 12 has a neat structure, and good design can be obtained.

The entrance 70 a of the trap portion 70 of the toilet bowl body 14 described above is open to the inner wall surface on the front side of the toilet bowl portion 12 . In addition to the entrance 70a of the trap portion 70, there are no other openings on the inner wall surface of the toilet bowl portion 12 on the rear side. This makes it difficult to visually recognize the entrance 70a of the trap portion 70 when looking into the toilet bowl portion 12 of the toilet body 14 from the front side. Therefore, when the inside of the toilet bowl part 12 is looked into from the front side, not only the upper part of the toilet bowl part 12 but also the bottom part of the toilet bowl part 12 has a neat structure, and good design can be obtained.

(Second embodiment)
FIG. 39 is a diagram showing part of the toilet device 10 of the second embodiment. In FIG. 39(a), the shutter 104A is at the concealed position Pf1, and in FIG. 39(b), the shutter 104A is at the exposed position Pf2. This embodiment is mainly related to the second contrivance.

The ejection section 50A of the present embodiment is provided separately from the shutter 104A. Further, the discharge part 50A of the present embodiment has an elongated shape as a whole, and is supported by the second casing 26 so as to be linearly movable in the advancing/retreating direction Pm. A cleaning liquid outlet 76 of a discharge hole 74 opens on the outer peripheral surface of the discharge portion 50A.

The drive mechanism 108A (not shown) of the present embodiment drives the ejection portion 50A in the advance/retreat direction Pm, thereby moving the ejection portion 50A between the advanced position Ph1 and the retracted position Ph2, and moving the shutter 104A to the hidden position Pf1. and exposure position Pf2.

More specifically, as shown in FIG. 39(b), the discharge section 50A applies a pressing force to the shutter 104A when it is driven to one side (left side in the figure) in the advancing/retreating direction Pm by the drive mechanism 108A. As a result, the discharge section 50A moves the shutter 104A in a direction to open the opening 102A as the shutter 104A rotates. As a result, the ejection portion 50A is moved to the advanced position Ph1 where it advances to the outside from the opening 102A where the shutter 104A is opened. Further, the shutter 104A is moved to the exposure position Pf2 where the ejection holes 74 of the ejection portion 50A are exposed to the outside. At this time, the cleaning liquid discharged in the discharge direction Pc from the discharge hole 74 of the discharge portion 50A is applied to the back surface of the toilet seat 22, so that the cleaning liquid can be transmitted to the back surface of the toilet seat 22.

The shutter 104A is given a biasing force in a direction to close the opening 102A of the second casing 26 by a biasing member (not shown). When the ejection portion 50A is driven in the other side (the right side in the figure) in the advancing/retreating direction Pm by the drive mechanism 108A, the ejection portion 50A is moved to the retracted position Ph2 in which it is retracted inside the opening portion 102A as shown in FIG. 39(a). be done. Accordingly, the shutter 104A is rotated by itself due to the biasing force of the biasing member, and is moved in the direction to close the opening 102A. As a result, the shutter 104A is moved to the concealing position Pf1 where the ejection holes 74 of the ejection portion 50A are hidden from the outside.

In this way, when the discharge portion 50A is provided so as to move back and forth with respect to the opening portion 102A of the second casing 26, the specific structure is not particularly limited.

(Third embodiment)
FIG. 40 is a diagram schematically showing part of the toilet seat 22 of the third embodiment. This embodiment is mainly related to the second contrivance. 50 A of discharge parts of this embodiment are provided in the back surface of the toilet seat 22 instead of the 2nd casing 26 of the functional apparatus 20. As shown in FIG.

The shutter 104A of the present embodiment can open and close the discharge hole 74 of the discharge portion 50A instead of the opening 102A of the second casing 26 . The shutter 104A of this embodiment can open and close the ejection hole 74 of the ejection portion 50A corresponding to itself by rotating around the rotation shaft 106 . The shutter 104A closes the discharge hole 74 when it is in the concealed position Pf1 that hides the discharge hole 74 from the outside. The shutter 104A opens the discharge hole 74 when it is at the exposure position Pf2 where the discharge hole 74 is exposed to the outside. At this time, the cleaning liquid can be spread to the rear surface of the toilet seat 22 by discharging the cleaning liquid from the discharge hole 74 of the discharge portion 50A in the discharging direction Pc.

In this manner, the shutter 104A may hide the discharge hole 74 by closing the discharge hole 74, or may hide the discharge hole 74 by closing the opening 102A of the housing member.

(Fourth embodiment)
FIG. 41 is a diagram schematically showing part of the toilet device 10 of the fourth embodiment. FIG. 41(a) shows an example in which the toilet seat 22 is in the reclined position and the second casing 26 is in the first position. FIG. 41(b) shows an example in which the toilet seat 22 is in the standing position and the second casing 26 is in the first position. FIG. 41(c) shows an example in which the toilet seat 22 is in the upright position and the second casing 26 is in the second position.

This embodiment is mainly related to the fifth contrivance. An example has been described in which the second casing 26 is rotatably attached to the toilet body 14 via the first casing 24 when the discharge portion 50A is provided in the second casing 26 of the functional device 20 .

Alternatively, the second casing 26 may be attached to the toilet body 14 so as to be vertically movable. Specifically, the second casing 26 is movable between a first position placed on the upper surface of the toilet body 14 and a second position away from the upper surface of the toilet body 14 . Even in this case, the effect described in (E) can be obtained.

(Fifth embodiment)
FIG. 42 is a diagram schematically showing part of the toilet device 10 of the fifth embodiment. FIG. 42(a) shows an example in which the toilet seat 22 is in the reclined position and the first casing 24 is in the first position. FIG. 42(b) shows an example in which the toilet seat 22 is in the reclined position and the first casing 24 is in the second position. FIG. 42(c) shows an example in which the toilet seat 22 is in the upright position and the first casing 24 is in the second position.

This embodiment is mainly related to the fifth contrivance. When providing the discharge section 50A in the functional device 20, the discharge section 50A may be provided in the first casing 24 of the functional device 20, and the second casing 26 may be omitted.

The first casing 24 is attached to the toilet body 14 so as to be vertically movable. Specifically, the first casing 24 is movable between a first position placed on the upper surface of the toilet body 14 and a second position away from the upper surface of the toilet body 14 . Even in this case, the effect described in (E) can be obtained.

(Sixth embodiment)
43 and 44 are side sectional views schematically showing part of the toilet device 10 of the sixth embodiment. FIG. 43 shows the toilet seat 22 in the reclined position, and FIG. 44 shows the toilet seat 22 in the upright position. The discharge part 50A described above is rotatably attached to the second casing 26 of the functional device 20 via the rotation shaft 106, as described above.

The angle formed by the ejection direction Pc of the ejection portion 50A with respect to the horizontal plane is defined as an ejection angle θ. As shown in FIG. 43, the ejection angle .theta. is assumed to be a negative angle when the ejection direction Pc is directed upward, and as shown in FIG. 44, the ejection angle .theta. is assumed to be a positive angle when the ejection direction Pc is directed downward. . At this time, the ejection portion 50A can change the ejection angle θ within the range of −90° or more and 90° or less by rotating around the rotation shaft 106 .

The toilet device 10 of this embodiment includes a changing mechanism 180 that can change the ejection direction Pc in which the ejection portion 50A ejects the cleaning liquid according to the rotation position of the toilet seat 22 within the rotation range. The change mechanism 180 of this embodiment includes a toilet seat sensor 182 capable of detecting the rotational position of the toilet seat 22, a drive mechanism 108A capable of driving the ejection portion 50A, and a control portion 124 capable of controlling the drive mechanism 108A. .

Toilet seat sensor 182 is, for example, a combination of a Hall IC and a magnet, or a microswitch. The toilet seat sensor 182 of this embodiment can detect that the toilet seat 22 is in the reclined position, and can detect that the toilet seat 22 is in the standing position. When the toilet seat sensor 182 detects the rotational position of the toilet seat 22 , it outputs a position signal indicating the rotational position to the control section 124 .

The drive mechanism 108A is configured using a motor or the like. The driving mechanism 108A of the present embodiment is connected to the rotary shaft 106, and rotates the discharge portion 50A around the rotary shaft 106 integrally with the rotary shaft 106, so that the discharge direction Pc of the discharge portion 50A is moved up and down. Can be changed. As in the first embodiment, the driving mechanism 108A can drive the shutter 104A together with the ejection section 50A, but it is sufficient if it can drive only the ejection section 50A independently of the shutter 104A.

The control unit 124 can change the ejection direction Pc of the ejection unit 50A by driving the ejection unit 50A through control over the drive mechanism 108A. The control unit 124 of the present embodiment can change the ejection direction Pc of the ejection unit 50A up and down by changing the rotation position of the ejection unit 50A through control of the drive mechanism 108A.

As shown in FIG. 43, when the control unit 124 receives a position signal from the toilet seat sensor 182 indicating that the toilet seat 22 is in the reclined position, the control unit 124 changes the discharge direction Pc of the discharge unit 50A so that the washing liquid is discharged upward. do. The change mechanism 180 sets the ejection direction Pc of the ejection portion 50A so that the cleaning liquid is ejected upward when the toilet seat 22 is in the reclined position. At this time, the changing mechanism 180 changes the ejection direction Pc of the ejection portion 50A so that the back surface of the toilet seat 22 is hit with the cleaning liquid. The changing mechanism 180 changes the discharge angle θ to a range of −90° or more and less than 0° when the toilet seat 22 is in the reclined position. The washing liquid discharged from the discharge part 50A in this state hits the back surface of the toilet seat 22 and is then spread over the back surface.

As shown in FIG. 44, when the control unit 124 receives a position signal from the toilet seat sensor 182 indicating that the toilet seat 22 is in the upright position, the control unit 124 changes the discharge direction Pc of the discharge unit 50A so that the washing liquid is discharged downward. do. The changing mechanism 180 sets the ejection direction Pc of the ejection portion 50A so that the cleaning liquid is ejected downward when the toilet seat 22 is in the standing position. When the toilet seat 22 is in the standing position, the changing mechanism 180 changes the discharge angle θ to a range of more than 0° and less than or equal to 90°. The cleaning liquid discharged from the discharge part 50A in this state hits the inner surface of the toilet bowl part 12 of the toilet body 14 without hitting the back surface of the toilet seat 22 .

According to the above-described toilet device 10, by using the change mechanism 180, it is possible to design the discharge direction Pc of the discharge portion 50A to meet the desired conditions in accordance with the rotational position of the toilet seat 22, thereby increasing the degree of freedom in design. Increased.

Further, when the toilet seat 22 is in the reclined position, the back surface of the toilet seat 22 can be washed with the cleaning liquid by changing the ejection direction Pc of the ejection portion 50A so that the cleaning liquid is ejected upward. Further, when the toilet seat 22 is in the upright position, by changing the discharge direction Pc of the discharge part 50A so that the cleaning liquid is discharged downward, it is possible to prevent the cleaning liquid from splashing out of the toilet bowl 12 . Therefore, while washing the back surface of the toilet seat 22, it is possible to prevent the washing liquid from splashing around when the toilet seat 22 is in the upright position, so that good usability can be obtained.

Note that the control unit 124 of the present embodiment changes the ejection direction Pc of the ejection unit 50A in response to the position signal received from the toilet seat sensor 182 as a trigger. In addition, when receiving the above-described cleaning start command, the control unit 124 changes the ejection direction Pc of the ejection unit 50A according to the position signal output from the toilet seat sensor 182 at that time. You may

The change mechanism 180 of the present embodiment has explained an example in which the ejection direction Pc of the ejection section 50A can be changed under the control of the control section 124 . The change mechanism 180 only needs to be able to change the discharge direction Pc of the discharge portion 50A according to the rotational position of the toilet seat 22, and the control by the control portion 124 is not essential.

For example, the changing mechanism 180 may have a transmission mechanism that mechanically transmits the rotating motion of the toilet seat 22 as the rotating motion of the discharge portion 50A. The transmission mechanism is configured using, for example, gears, links, belts, and the like. The transmission mechanism changes the ejection direction Pc of the ejection portion 50A upward when the toilet seat 22 is in the reclined position. Further, the transmission mechanism changes the ejection direction Pc of the ejection portion 50A downward when the toilet seat 22 is in the standing position.

Further, the changing mechanism 180 may be capable of changing the ejection range instead of the ejection direction Pc of the ejection portion 50A. To achieve this, the changing mechanism 180 has, for example, a limiting member for limiting the ejection range of the ejection portion 50A. The ejection part 50A has a wide-angle ejection range so that at least part of the cleaning liquid is ejected upward. The restricting member is arranged inside or outside the discharge hole 74 of the discharge portion 50A, and is operable according to the rotational position of the toilet seat 22 by the drive mechanism or transmission mechanism described above.

As such an operation mode, the restricting member is moved to a position that does not restrict the discharge range of the discharge portion 50A when the toilet seat 22 is in the reclined position. Thereby, the changing mechanism 180 sets the ejection range in the vertical direction of the ejection section 50A so that at least part of the cleaning liquid is ejected upward. At this time, the discharge section 50A discharges the cleaning liquid both upward and downward.

Further, as the operation mode described above, when the toilet seat 22 is in the standing position, the restricting member is moved to a position that restricts the ejection range of the ejection portion 50A. At this time, the restricting member restricts the ejection range of the ejection part 50A so that the cleaning liquid is ejected downward. Accordingly, the changing mechanism 180 sets the ejection range in the vertical direction of the ejection portion 50A so that the cleaning liquid is ejected downward. The change mechanism 180 expands the discharge range in the vertical direction of the discharge portion 50A when the toilet seat 22 is in the reclined position, and reduces the discharge range when the toilet seat 22 is in the upright position. As a result, the back surface of the toilet seat 22 can be washed, and the cleaning liquid can be prevented from scattering around when the toilet seat 22 is in the upright position, and good usability can be obtained.

In addition, by using the changing mechanism 180, it is possible to design the discharge range of the discharge portion 50A according to the desired conditions according to the rotational position of the toilet seat 22, thereby increasing the degree of freedom in design.

The present invention has been described above based on the embodiments. Next, modified examples of each component will be described.

Although an example in which the toilet seat 22 is rotatably attached to the toilet body 14 via the functional device 20 has been described, the toilet seat 22 may be rotatably attached directly to the toilet body 14 . In this case, the toilet seat unit 16 may not include the functional device 20 .

In addition to the first bowl-facing surface 34 of the toilet seat 22, the ejection units 50A and 50B may eject the cleaning liquid along locations other than the first bowl-facing surface 34.

(Regarding the first contrivance point)
Although an example in which the guiding portions 40 and 42 are provided on the toilet seat 22 has been described, the present invention is not limited to this. For example, it may be provided on the toilet body 14 in addition to the toilet seat 22 . Although an example in which the first guiding portion 40 and the second guiding portion 42 are configured by separate portions of the same inner circumferential side convex portion 56 has been described, they may be configured by separate portions that are separated from each other.

The inner peripheral convex portion 56 utilizes the Coanda effect to change the flow direction of the cleaning liquid traveling along the outer peripheral surface 56a in the circumferential direction so as to bend radially inward, thereby reducing the first bowl-facing surface 34 of the toilet seat 22. An example has been described in which the cleaning liquid is guided along the inner peripheral portion. In addition, without using the Coanda effect, by changing the flow direction of the cleaning liquid along the "inner peripheral surface of the inner peripheral side protrusion 56" in the circumferential direction so as to bend inward in the radial direction, the first bowl facing surface The cleaning liquid may be guided along the inner peripheral portion of 34 .

The inner peripheral protrusion 56 is not particularly limited as long as it protrudes downward from the inner peripheral portion of the first bowl-facing surface 34 of the toilet seat 22 . The outer peripheral protrusion 58 may also protrude downward from the outer peripheral portion of the first bowl facing surface 34, and its shape is not particularly limited. Both the inner peripheral side protrusion 56 and the outer peripheral side protrusion 58 may be simple protrusions instead of circumferentially continuous ridges. In addition, the inner peripheral convex portion 56 and the outer peripheral convex portion 58 may be arranged at arbitrary positions in relation to the pooled water 72 of the toilet body 14 .

The shape that satisfies the above conditions (A-1) and (A-2) is not particularly limited. As a shape that satisfies this condition, the outer peripheral surface 56a of the inner peripheral side convex portion 56 may have a planar shape, a convex curved shape, or the like in a vertical cross section passing through the center Cp of the toilet seat 22 . Similarly, the inner peripheral surface 58a of the outer peripheral convex portion 58 may also have a planar shape, a convex curved shape, or the like in a similar vertical cross section.

The specific shape of the discharge hole 74 is not particularly limited. The discharge hole 74 may be formed, for example, so that the inner width does not widen toward the cleaning liquid outlet 76 and has the same size.

The flow restricting structure 64 is not limited to the upper edge of the toilet bowl 12 . The flow restricting structure 64 may be, for example, a sealing member or the like sandwiched between the toilet body 14 and the toilet seat 22 .

An example in which the first inclined surface 82 is provided in the range from the rear end portion of the right half region 38R to the front circumferential end portion 38Ra has been described. The first inclined surface 82 may be provided in at least part of the range through which the cleaning liquid discharged from the first discharge portion 50A is transmitted. For example, when the cleaning liquid discharged from the first discharge portion 50A is transmitted in a range from the central portion 38Rb in the front-rear direction Y of the right half region 38R to the front circumferential end portion 38Ra, the first inclined surface 82 is formed in that range. may be provided over the entire range, or may be provided only in part of the range.

If there is no second discharge portion 50B, only the first inclined surface 82 corresponding to the first discharge portion 50A may be provided without providing the second inclined surface 86 corresponding to the second discharge portion 50B. In this case, when the cleaning liquid discharged from the first discharge portion 50A spreads over the range from the right half region 38R to the left half region 38L, the first inclined surface 82 is provided over the entire range. may

At least a part of the peak portion 88 may be formed by the lower end portion of the first inclined surface 82 and the lower end portion of the second inclined surface 86 . For example, the peak portion 88 may be composed of the lower end portion of the first inclined surface 82 and the lower end portion of the second inclined surface 86, as well as a flat surface continuous therewith.

(Regarding the second device point)
In the first to third embodiments, the ejection units 50A and 50B eject the cleaning liquid for cleaning the back surface of the toilet seat 22 from the ejection holes 74, and the shutters 104A and 104B cover the ejection holes 74. I explained an example of being exposed. In addition, the discharge portions 50A and 50B discharge cleaning liquid for washing the inner surface of the toilet bowl portion 12 of the toilet body 14 from the discharge holes 74, and the shutters 104A and 104B cover the discharge holes 74. You can expose it.

The second casing 26 has been described as an example of a housing member that houses the discharge portions 50A and 50B inside. The housing member is not limited to the second casing 26, and may be the toilet seat 22, for example. In this case, the shutters 104A and 104B are attached to a housing member separate from the toilet body 14. As shown in FIG. Moreover, the toilet body 14 may constitute the accommodation member.

Although the ejecting sections 50A and 50B and the shutters 104A and 104B have been described as part of the same member, they may be configured separately. Moreover, although the ejection parts 50A and 50B have the closing parts 112 that close the openings 102A and 102B of the housing members when the ejection parts 50A and 50B are at the advanced position Ph1, the closing parts 112 may be omitted. .

(Regarding the 3rd and 4th devised points)
The toilet device 10 (toilet seat unit 16) is configured so that the second discharge section 50B starts the second discharge operation after the first discharge section 50A finishes the first discharge operation, and the switching mechanism 122 is An example using the controlling control unit 124 has been described. A specific means for satisfying this condition is not particularly limited. For example, it may be realized by changing the length of the first liquid passage 120a and the second liquid passage 120b of the liquid supply passage 120 in the flow direction.

The toilet device 10 (toilet seat unit 16) uses the cleaning liquid that forms the first seat back flow Fa to form the first bowl flow Fc, and uses the cleaning liquid that forms the second seat back flow Fb to form the second An example of forming the in-bowl flow Fd has been described. A specific mode of the flow formed within the toilet bowl portion 12 of the toilet body 14 is not particularly limited. For example, by using the seat back flows Fa and Fb, flows that flow into the bottom of the toilet bowl 12 without turning within the toilet bowl 12 may be formed within the toilet bowl 12 .

Although an example in which the switching mechanism 122 is configured by a plurality of on-off valves 126A to 126D has been described, the specific example is not particularly limited. For example, the switching mechanism 122 may be composed of a single switching valve. Also, the common on-off valve 126C of the embodiment may be omitted.

Although an example in which the third ejection part 50C is provided on the bottom surface of the functional device 20 has been described, the position is not particularly limited. For example, the third discharge part 50C may be provided on the back surface of the toilet seat 22 . Further, the third ejection part 50C may be provided with only the pot ejection holes 132A and 132B, or may be provided with only the third ejection hole 132C. Also, the third discharge portion 50C may be omitted.

(Regarding the fifth contrivance)
The seat back discharge parts 50</b>A and 50</b>B have explained an example in which the washing liquid for washing the back surface of the toilet seat 22 is discharged from the discharge holes 74 . In addition, the discharge portions 50A and 50B may discharge cleaning liquid for cleaning the inner surface of the toilet bowl portion 12 of the toilet body 14 . In either case, it is assumed that the seat back discharge parts 50A and 50B are provided in the functional device 20 from the viewpoint of obtaining the above effect (E).

An example in which the toilet seat 22 is rotatably attached to the functional device 20 has been described. From the viewpoint of obtaining the aforementioned effect (E), the toilet seat 22 only needs to be movably attached to the functional device 20 regardless of its movement mode. Further, from the viewpoint of obtaining the aforementioned effect (E), the toilet seat 22 may be attached to the functional device 20 in a non-movable manner or detachably attached to the functional device 20 . As a result, when the toilet seat 22 that has been removed from the functional device 20 is moved for maintenance or the like, the weight of the cleaning liquid inside the discharge portions 50A and 50B is not applied to the toilet seat 22, and the toilet seat 22 is moved. It is possible to avoid the case where the load to be applied to is increased. The toilet seat 22 may be attached to the toilet body 14 so as to be movable and detachable.

Although the seat back discharge parts 50A and 50B have been described as capable of discharging cleaning liquid having an upward velocity component, they may be capable of discharging cleaning liquid having only a horizontal velocity component. Also, it may be possible to eject a cleaning liquid having only an upward velocity component. In this case, the back surface of the toilet seat may be provided with a structure for guiding the flow of the cleansing fluid so that the cleansing fluid travels along the back surface of the toilet seat 22 with a horizontal velocity component.

Although the discharge sections 50A, 50B, and 50C are provided behind the front end portion 20a of the functional device 20, they may be provided forward of the front end portion 20a. Although the ejection sections 50A, 50B, and 50C have been described as being provided in the horizontal direction Y with respect to the nozzle 142, they may be provided at positions unrelated to the nozzle 142. FIG.

An example has been described in which the first discharge portion 50A and the second discharge portion 50B discharge the cleaning liquid so as to form the seat back flows Fa and Fb that travel in opposite directions on the back surface of the toilet seat 22, respectively. The area where the seat back flows Fa and Fb that propagate in opposite directions are formed is not limited to the front end area 39 of the toilet seat 22 . For example, the central portion 38Rb in the front-rear direction Y of the right half region 38R of the toilet seat 22 may be used.

(Regarding the 6th devised point)
Although the second casing 26 of the functional device 20 has been rotatably attached to the toilet body 14 via the first casing 24 , it may be directly rotatably attached to the toilet body 14 . In order to rotatably attach the second casing 26 to the toilet body 14, the toilet seat unit 16 does not have to include the discharge portions 50A and 50B. Moreover, when the second casing 26 is rotatably attached to the toilet body 14 , the discharge parts 50A and 50B may be provided on the toilet seat 22 instead of the second casing 26 .

A part of the liquid supply path 120 inside the second hinge mechanism 166 has been described as an example in which the liquid path forming surfaces 172A to 172C of the components of the second hinge mechanism 166 are configured. It is not limited to this, and a hose inserted through the inside of the second hinge mechanism 166 may be configured.

The positional relationship between the second hinge shaft 166a that rotatably connects the second casing 26 to the toilet body 14 and the first hinge shaft 164a that rotatably connects the toilet seat 22 to the toilet body 14 is not particularly limited. For example, the second hinge shaft 166a may be arranged at the same position in the front-rear direction X as the first hinge shaft 164a, or may be arranged behind the first hinge shaft 164a. Also, although the first hinge shaft 164a and the second hinge shaft 166a have been described as separate members, they may be configured using the same member.

Although an example has been described in which the upper portion of the toilet bowl portion 12 of the toilet body 14 is not provided with a discharge portion capable of discharging the cleaning liquid for cleaning the inside of the toilet bowl portion 12, such a discharge portion is provided. may

In order to obtain the effect of (F1), the bottom portion of the toilet bowl 12 is provided with a discharge portion for discharging the cleaning liquid toward the trap portion 70 so as to form a flow for promoting discharge of waste. may

Although an example in which the entrance 70a of the trap portion 70 opens in the inner wall surface on the front side of the toilet bowl portion 12 has been described, the position is not particularly limited. For example, the inner wall surface on the rear side of the toilet bowl portion 12 may be opened.

The embodiments and modifications of the present invention have been described in detail above. All of the above-described embodiments and modifications merely show specific examples for carrying out the present invention. The contents of the embodiments and modifications do not limit the technical scope of the present invention. Design changes are possible. In the above-described embodiment, the content that allows such design changes is emphasized by adding notations such as "of the embodiment" and "in the embodiment", but even contents without such notation can be designed. Changes are allowed. Any combination of the above components is also effective as an aspect of the present invention. The hatching attached to the cross section of the drawing does not limit the material of the hatched object.

(others)
Further, when the inventions embodied by the above embodiments and modifications are generalized, it can be said that the inventions described in the following items are included.

(Item 1)
Equipped with a discharge part that can discharge cleaning liquid along the back of the toilet seat,
In the toilet seat unit, the discharge part has a discharge hole formed such that the inner width of the discharge part increases continuously as the washing liquid outlet is approached in a rear view of the toilet seat.

(Item 2)
a discharge part capable of discharging cleaning liquid along the back surface of the toilet seat;
A toilet seat unit, comprising: a changing mechanism capable of changing a discharge direction or a discharge range in which the discharge part discharges cleaning liquid according to a rotational position of the toilet seat.

Generalizing the inventions embodied by the above embodiments and modifications leads to the following technical ideas. Hereinafter, description will be made using the embodiments described in the problems to be solved by the invention.

A second aspect of the toilet seat unit is, in the first aspect, provided with a discharge part capable of discharging cleaning liquid for washing the back surface of the toilet seat or the inner surface of the toilet bowl part of the toilet body, and the discharge part is attached to the casing. may be provided.
According to this aspect, even if the cleaning liquid remains inside the discharge part, the weight of the cleaning liquid will not be applied to the toilet seat, thus avoiding the case where the load to be applied to move the toilet seat increases. Therefore, the ease of use of the toilet seat can be maintained when the back surface of the toilet seat and the inner surface of the toilet bowl portion of the toilet bowl body are cleaned.

In the toilet seat unit of the third aspect, in the second aspect, the casing is rotatably attached to the toilet bowl body using a hinge mechanism, and the inside of the hinge mechanism is provided with a washing liquid from the outside of the casing to the inside. A part of the liquid supply path for supplying the may be provided.
According to this aspect, the space occupied by the components of the hinge mechanism can be utilized to supply the cleaning liquid to the functional components within the casing.

In the toilet seat unit of the fourth aspect, in the third aspect, the constituent part of the hinge mechanism may be provided with a liquid passage forming surface that forms a part of the liquid supply passage.
According to this aspect, compared to the case where the hose is passed through the interior of the hinge mechanism and the liquid supply path is provided in the hose, a part of the liquid supply path is provided inside the hinge mechanism without taking measures against twisting of the hose. be provided.

A fifth aspect of the toilet seat unit is that in any one of the first to fourth aspects, the casing is connected to the toilet body via a first hinge shaft so as to be rotatable about the first hinge shaft, and the toilet seat is connected to the toilet bowl body via a second hinge shaft so as to be rotatable about the second hinge shaft, and the first hinge shaft may be arranged in front of the toilet bowl body from the second hinge shaft. good.
According to this aspect, when both the toilet seat and the casing are in the upright position, the positions of the toilet seat and the casing can be shifted in the front-rear direction, making it easier to design so as to avoid interference between the two.

A sixth aspect is a toilet device. A toilet device according to a sixth aspect includes a toilet bowl body having a toilet bowl portion, and the toilet seat unit according to any one of the first to fifth aspects.

A toilet device according to a seventh aspect is the toilet device according to the sixth aspect, wherein the toilet seat unit includes a discharge part capable of discharging cleaning liquid for washing the back surface of the toilet seat or the inner surface of the toilet bowl part of the toilet body, The upper part of the toilet bowl may not be provided with a discharge part capable of discharging the washing liquid for washing the toilet bowl.
According to this aspect, it becomes easy to wipe in the circumferential direction without clogging the inner peripheral surface of the upper part of the toilet bowl, and the cleanability of the toilet bowl is improved.

A toilet device of an eighth aspect is, in the seventh aspect, the toilet body has a trap portion connected to the bottom portion of the toilet bowl portion, and the entrance of the trap portion is an inner wall surface on the front side of the toilet bowl portion. According to this aspect, when the inside of the toilet bowl portion of the toilet bowl body is viewed from the front side, not only the upper portion of the toilet bowl portion but also the bottom portion of the toilet bowl portion have a neat structure, and good design. is obtained.

DESCRIPTION OF SYMBOLS 10... Toilet device, 12... Toilet bowl part, 14... Toilet body, 16... Toilet seat unit, 20... Functional device, 22... Toilet seat, 26... Casing, 50A... Discharge part, 70... Trap part, 70a... Entrance, 120... Liquid supply channel 164a... First hinge shaft 166a... Second hinge shaft 172A... Liquid channel forming surface.

Claims (5)

a functional device installed in the toilet body;
a toilet seat rotatably attached to the functional device,
The functional device has a casing provided separately from the toilet seat and rotatably attached to the toilet body,
The toilet seat is rotatable with respect to the toilet body with its front end facing rearward independently of the casing ,
The toilet seat unit, wherein the casing is rotatable with respect to the toilet body independently of the toilet seat when the casing is in a standing position where the toilet seat stands with respect to the toilet body. A discharge part capable of discharging a cleaning liquid for cleaning the back surface of the toilet seat or the inner surface of the toilet bowl part of the toilet body,
The toilet seat unit according to claim 1 , wherein the discharge part is provided in the casing. The casing is rotatably attached to the toilet body using a hinge mechanism,
3. The toilet seat unit according to claim 2 , wherein a part of a liquid supply passage for supplying washing liquid from the outside of the casing to the inside is provided inside the hinge mechanism. 4. The toilet seat unit according to claim 3 , wherein the components of the hinge mechanism are provided with a liquid passage forming surface that forms part of the liquid supply passage. a functional device installed in the toilet body;
a toilet seat rotatably attached to the functional device,
The functional device has a casing provided separately from the toilet seat and rotatably attached to the toilet body,
The toilet seat is rotatable with respect to the toilet body with its front end facing rearward independently of the casing ,
The toilet seat is connected to the toilet body via a first hinge shaft so as to be rotatable around the first hinge shaft,
The casing is connected to the toilet body via a second hinge shaft so as to be rotatable around the second hinge shaft,
The toilet seat unit, wherein the second hinge shaft is arranged in front of the toilet body with respect to the first hinge shaft.

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