JP7403373B2 - Flush toilet device - Google Patents

Description

The present disclosure relates to flush toilet devices.

2. Description of the Related Art A flush toilet device is known in which a toilet main body is provided with a functional section including various devices. Examples of devices included in the functional section include a water washing device, a cleaning nozzle device, a drying device, a deodorizing device, and the like. For example, in Patent Document 1, a functional unit installation space is formed at the rear of the toilet bowl body, and various functional devices are provided in the functional unit installation space.

Japanese Patent Application Publication No. 2017-180060

When various functional parts are provided in the functional part installation space at the rear of the toilet bowl body, some of the functional parts are arranged below the upper edge of the toilet bowl. For this reason, water flowing in the toilet bowl and splashes from the toilet bowl get on the functional parts, making cleaning time-consuming. In Patent Document 1, a cover is provided on the base plate on which the functional section is provided in order to prevent splashes from the toilet bowl toward the functional section. However, the lower part of the functional part is exposed near the edge of the toilet bowl. The lower part of the functional part is difficult for the user to see and is difficult to clean.

In view of the above circumstances, an object of the present disclosure is to provide a flush toilet device that has a functional section at the rear of the toilet bowl and has excellent cleaning performance.

A flush toilet device according to the present disclosure includes a toilet bowl, a toilet main body including a toilet bowl, a recess formed by recessing a portion of the rear upper surface of the toilet bowl downward, and a portion provided above the recess. , a functional component whose front end protrudes toward the toilet bowl side beyond the recessed portion, and a cover member that covers the front side and the lower side of the lower part of the front end portion of the functional component within the toilet bowl .

FIG. 1 is a perspective view of a flush toilet device according to an embodiment. FIG. 1 is a perspective view of a flush toilet according to one embodiment. FIG. 1 is a vertical cross-sectional view of a flush toilet device according to an embodiment. FIG. 2 is a cross-sectional view taken along the line IV-IV in FIG. 1. FIG. 1 is a partial vertical sectional view of a flush toilet device according to an embodiment. 2 is a partial cross-sectional view taken along the line IV-IV in FIG. 1. FIG. FIG. 2 is a partial cross-sectional view taken along line VII-VII in FIG. 1; FIG. 3 is a perspective view of a cover member of one embodiment. FIG. 1 is a vertical cross-sectional view of a flush toilet device of one embodiment. The bottom view of the cover member of one embodiment. FIG. 1 is a cross-sectional view of a toilet device according to one embodiment. FIG. 3 is a side view of a cover member of one embodiment. The perspective view of the cover member of a modification. FIG. 7 is a vertical cross-sectional view of a modified toilet device. The perspective view of the cover member of a modification. The bottom view of the cover member of a modification.

Hereinafter, a flush toilet device 1 (hereinafter referred to as "toilet device 1") according to an embodiment will be described with reference to the drawings. In the drawings, any parts that are the same or similar are given the same reference numerals, and redundant explanations may be omitted. In the following description, unless otherwise specified, the direction extending vertically from the floor of the room in which the toilet device 1 is installed will be referred to as the vertical direction H. One direction perpendicular to the longitudinal direction H is referred to as the width direction W. A direction perpendicular to the longitudinal direction H and the width direction W is referred to as a front-rear direction D. Regarding the front-back direction D, the direction in which the user of the toilet device 1 faces when seated on the toilet seat is referred to as the front F, and the direction opposite to the front F and on the back side of the user is referred to as the rear R.

The toilet device 1 is a Western-style flush toilet device. In this embodiment, an example of a wall-mounted toilet device is shown. In the wall-mounted toilet device, the back surface 103 of the toilet device 1 is fixed to the wall. The toilet device 1 is fixed by attaching the back side of the toilet device to a support surface that supports the toilet device, such as a wall, lining, or cabinet of a room in which the toilet device is installed. In wall-mounted toilet devices, there is a distance between the bottom end and the floor.

The toilet device 1 includes a toilet main body 2, a toilet device main body portion 3, and a cover member 4. The toilet device 1 is provided with a toilet seat unit 200 on an upper surface 27.

The toilet device main body 3 includes a base plate 33, a functional component 30, a cover member 4, and an upper cover 6.

The functional component 30 is composed of a plurality of devices that perform various functions provided in the toilet device 1. In FIG. 3, the functional component 30 is schematically shown. For example, the functional components 30 include a toilet bowl cleaning device, a cleaning nozzle device 31 for cleaning the buttocks of a human body seated on the toilet seat 201, a deodorizing device, a hot air drying device, a temperature adjustment device for the toilet seat 201, a toilet seat 201 and a toilet lid 202, etc. It includes at least a portion of a known functional device, control device, electrical component, etc., such as a rotating device.

Functional component 30 is attached to base plate 33. The base plate 33 has a size that can be accommodated in the accommodating portion 20 of the toilet main body 2, which will be described later. Functional component 30 is mounted on base plate 33. The upper part of the functional component 30 is covered with an upper cover 6. A partition wall 332 extending in the vertical direction H is provided below the base plate 33. The cover member 4 is provided in front of the functional component 30.

The toilet seat unit 200 includes a toilet seat 201 and a toilet lid 202 rotatably attached to a base 203. A base 203 is attached to the rear part of the upper surface 27 of the toilet main body 2 and is installed in the toilet main body 2. A toilet seat 201 and a toilet lid 202 are arranged above the toilet bowl 21, and the toilet seat 201 and the toilet lid 202 are rotatably provided above the toilet main body 2. FIG. 1 shows a state in which the toilet seat 201 and the toilet lid 202 are opened and placed above the base 203.

FIG. 2 is a perspective view of the toilet main body 2 viewed from the front F. FIG. 3 is a longitudinal sectional view of the toilet device 1 along the front-rear direction D. 3 omits illustrations of the toilet seat 201 and toilet lid 202 shown in FIG. 1. As shown in FIGS. 2 and 3, the toilet main body 2 includes a toilet bowl 21, a housing section 20, an outer peripheral wall 28, and a base plate support section 22. The toilet main body 2 includes a toilet bowl 21, a housing section 20, an outer peripheral wall 28, a base plate support section 22, and a trap section 29 shown in FIG. 3, which are integrally formed of ceramic. A toilet bowl 21 is arranged at the front of the toilet bowl main body 2, and a storage section 20 is arranged at the rear of the toilet bowl 21. The outer peripheral wall 28 constitutes the outer peripheral part of the toilet bowl main body 2 and covers the periphery of the toilet bowl 21. The toilet main body 2 is an example of a flush toilet.

The toilet bowl 21 is open to the top surface 27 of the toilet bowl main body 2. The toilet bowl 21 includes a water spout 210, a rim water passage section 23, a shelf surface 24, and a water storage section 211. The spout 210 is formed below the opening edge 271 of the upper surface 27 of the toilet bowl main body 2 . The spout 210 is open to the side of the toilet bowl 21 and to the vertical surface 231 of the rim water passage section 23 . The water spout 210 is connected to a water supply channel (not shown) arranged inside the toilet main body 2. Wash water is supplied to the water spout 210 from an external water supply path (not shown) via a water supply channel.

The rim water passage section 23 swirls the wash water supplied from the water spout 210 and guides it to the water reservoir section 211 . The rim water passage portion 23 is provided below the opening edge 271 of the upper surface 27 of the toilet main body 2. The rim water passage portion 23 is formed over the entire inner peripheral surface of the toilet bowl 21. The water spout 210 also has the function of temporarily storing overflow water at the time of overflow, similar to the rear space BS described later. As a result, for example, a volume for storing overflow water in the toilet bowl 21 can be secured.

A water reservoir 211 for storing water is provided at the bottom of the toilet bowl 21. The water reservoir section 211 is provided below the rim water passage section 23. A trap section 29 is provided below the water reservoir section 211. As shown in FIG. 3, a drainage channel 290 is formed at the downstream end of the trap section 29. The drain channel 290 is connected to an external drain pipe 300. Drainage channel 290 is a waterway through which wastewater flows from toilet bowl 21 to drainpipe 300 via trap section 29. When the user performs an operation to flush water, cleaning water is supplied from the water supply path to the water spout 210 . After flowing along the rim water passage section 23, the wash water flows into the shelf surface 24, and flows from the water storage section 211 to the drain pipe 300 via the trap section 29 and the drain channel 290.

As shown in FIGS. 2 and 3, a shelf surface 24 is provided between the rim water passage section 23 and the water reservoir section 211. The shelf surface 24 is a flat surface formed inside the rim water passage portion 23 in plan view.

The storage section 20 is a storage chamber formed at the rear R of the toilet bowl 21. A functional component 30 is provided in the housing section 20 . In addition, the accommodating portion 20 is provided with a water supply channel and a drain pipe 300 that are connected to the toilet bowl 21 . The water supply waterway is a waterway that supplies wash water into the toilet bowl 21.

As shown in FIGS. 2 to 4, a recess 26 is formed between the accommodating portion 20 and the toilet bowl 21. The recess 26 is formed by recessing the rear part of the upper surface 27 of the toilet main body 2 lower than the front part.

As shown in FIG. 2, a pair of base plate support parts 22 are provided on both sides of the housing part 20 in the width direction W. As shown in FIG. The base plate support section 22 supports the base plate 33. The base plate support portion 22 is provided outside the recess 26 in the width direction W. As shown in FIG. 4, the base plate support portion 22 is provided between the upper surface 27 of the toilet main body 2 and the recess 26 in the vertical direction H. The base plate support portion 22 is provided at a position higher than the recess 26 and lower than the upper surface 27 of the toilet main body 2.

The accommodating portion 20 and the toilet bowl 21 communicate with each other via a recess 26. A part of the functional component 30 is placed in the recess 26 .

The recess 26 functions as an opening for arranging the functional component 30 into the toilet bowl 21 . By providing the recess 26 in the toilet bowl body 2, the functional component 30 can be accommodated at a lower position compared to a toilet device in which the functional component 30 is mounted on the upper surface 27 of the toilet bowl body 2. As a result, the size of the portion of the functional component 30 that protrudes upward from the rear upper surface 27 of the toilet main body 2 can be suppressed, and the overall height of the toilet device 1 can be suppressed.

The rear surface 262 of the recess 26 constitutes the front portion of the housing portion 20 . The toilet bowl 21 and the accommodating portion 20 are separated by a wall below the recess 26. The toilet bowl 21 and the accommodating portion 20 communicate with each other via a recess 26.

The recess 26 also functions as an overflow drain 25 when the amount of water in the toilet bowl 21 increases. A gap is formed between the recess 26 and the functional component, and functions as an overflow drainage channel 25. As shown in FIG. 5, a gap is formed between the rear surface 262 and the partition wall 332 of the functional component 30 in the housing section 20, and functions as a drainage channel 250 for overflow water. The overflow drainage channel 25 is a drainage channel that allows water accumulated up to the top of the toilet bowl 21 to flow into the drainage channel 250 on the side of the accommodating part 20 at the time of overflow. The overflow drainage channel 25 flows from the recess 26 to the rear surface 262 of the recess 26 and flows below the toilet main body 2. In the functional component 30, a shielding member such as a base plate 33 and a partition wall 332 is provided at a portion facing the rear surface 262 of the recess 26, and the functional component 30 is electrically isolated from the overflow drainage channel 25. As shown in FIG. 3, an overflow drain port 251 is formed below the accommodating portion 20. The overflow drainage channel 25 communicates with a drainage channel 250 and an overflow drainage port 251 of the housing section 20 .

It is sufficient that at least a portion of the recess 26 in the width direction W communicates with the accommodating portion 20 to form the overflow drainage channel 25 . In the example shown in FIG. 4 , substantially the entire area of the overflow drainage channel 25 in the width direction W of the recess 26 in front of the front end 261 of the recess 26 communicates with the overflow drainage port 251 . That is, substantially the entire area of the recess 26 in the width direction W between the lower end 321 of the front end 32 of the functional component 30 and the recess 26 functions as the overflow drainage channel 25 . As shown in FIG. 5, in the front-rear direction D, the cover member 4 is provided farther forward than the front end 261 of the recess 26. The front end 32 of the functional component 30 is provided forward and upwardly apart from the front end 261 of the recess 26 . Therefore, a sufficiently wide gap is formed between the recess 26, the functional component 30, and the cover member 4. As a result, an overflow drainage channel 25 with a wide opening is formed.

In the front-back direction D, the recess 26 is provided rearward from the rear end of the water reservoir 211 , and a shelf surface 24 is formed between the water reservoir 211 and the recess 26 . As shown in FIG. 3, in the front-rear direction D, the front end 261 of the recess 26 is provided at the rear of the front end 241 of the shelf surface 24 on the water reservoir 211 side. The shelf surface 24 between the water storage part 211 and the recessed part 26 is referred to as a shelf rear part 242.

As shown in FIGS. 2 and 3, a rear space BS is formed below the recess 26. The rear space BS is a space surrounded by the rear part 212 of the standing surface 231 of the rim water passage part 23 of the toilet bowl 21 located below the recess 26, and communicates with the toilet bowl 21. The rear space BS extends over substantially the entire area of the rear portion of the toilet bowl 21 in the width direction W. The rear space BS is connected to a water supply channel (not shown) disposed within the toilet main body 2. Washing water is supplied to the rear space BS via a water supply channel from an external water supply path (not shown), and the washing water flows into the toilet bowl 21. At the time of overflow, overflow water flows into the rear space BS, and the rear space BS functions as a space for storing water. While the overflow water is drained from the overflow drainage channel, the overflow water temporarily accumulates in the rear space BS. As a result, for example, when the amount of flushing water flowing into the toilet bowl 21 from the spout 210 is large, a volume for storing overflow water in the toilet bowl 21 can be secured. Therefore, even if the overflow water accumulates at a high speed, the overflow water can be smoothly drained from the overflow drain channel 25 without overflowing from the upper surface 27 side of the toilet bowl 21.

As shown in FIG. 3, the functional component 30 is housed in the housing section 20. The functional component 30 is housed and fixed in the accommodating portion 20 as a unit in which a plurality of devices are housed within the base plate 33 and the partition wall 332. An upper portion that is a part of the functional component 30 is provided to protrude upward from the upper surface 27 of the toilet main body 2. A front end 32, which is part of the functional component 30, is arranged above the recess 26. The front end portion 32 is provided above and apart from the recess 26. The lower end of the front end portion 32 is located higher and forward than the recess 26. A cleaning nozzle device 31 is provided at the front end 32 of the functional component 30 . The cleaning nozzle device 31 includes a cleaning nozzle 311, a cleaning nozzle holder 312, a cleaning nozzle moving mechanism 313, and the like.

The functional component 30 includes a mechanism section in which various operations are performed, and the various operations of the mechanism section are controlled by a control device. FIG. 5 is an enlarged vertical cross-sectional view of the vicinity of the recess 26 in FIG. For example, as shown in FIG. 5, the cleaning nozzle 311 moves forward with respect to the cleaning nozzle holder 312, and cleaning water is discharged from the cleaning nozzle 311. Control of the mechanism section is executed based on control signals from a control board provided in the control device. In addition, the control unit also controls the temperature of the cleaning water discharged from the cleaning nozzle 311.

As shown in FIGS. 3 and 5, a shutter 5 is provided in front of the front end portion 32 of the functional component 30. As shown in FIGS. The shutter 5 covers the front end portion 32 in an openable and closable manner. The shutter 5 is rotatably attached to the front end 32 of the functional component 30. As shown in FIGS. 1, 4, and 6, the shutter 5 is a member that is long in the width direction W. As shown in FIGS.

For example, when the cleaning nozzle 311 advances and protrudes from the cleaning nozzle holder 312, the shutter 5 rotates upward and the front opening of the cleaning nozzle holder 312 is opened. When the cleaning nozzle 311 is retreated and accommodated in the cleaning nozzle holder 312, the shutter 5 rotates downward to close the front opening of the cleaning nozzle holder 312. In addition to the cleaning nozzle device 31, the shutter 5 is provided to be able to open and close the front end of the hot air drying device, for example. The air outlet of the hot air drying device is provided in line with the cleaning nozzle device 31 in the width direction W. When the hot air drying device is activated, the shutter 5 rotates upward and hot air is discharged into the toilet bowl 21. When the hot air drying device is stopped, the shutter 5 rotates downward to close the front end 32 of the functional component 30.

As shown in FIGS. 1 and 5, the cover member 4 is provided at the rear of the toilet bowl 21, facing the toilet bowl 21. The cover member 4 covers the gap created between the front end 32 of the functional component 30 and the toilet main body 2 in the toilet bowl 21. The cover member 4 is provided in front of the front end portion 32 of the functional component 30 and around the shutter 5.

As shown in FIG. 7 , the cover member 4 includes a mounting portion 44 , an upper wall 42 , a pair of side walls 45 , and a bar 41 . The attachment portion 44 is attached to the rear upper surface 27 of the toilet main body 2. The attachment portion 44 is a portion on a plane extending in the front-rear direction D and the width direction W. The upper wall 42 is formed to extend downward from the front end of the central portion of the mounting portion 44 in the width direction W. The pair of horizontal walls 45 are formed to extend downward from both ends of the upper wall 42 in the width direction W. The bar 41 is provided at the lower end of the central portion of the cover member 4 in the width direction W. The bar 41 is an elongated plate-shaped portion extending in the width direction W. The bar 41 is located below the upper wall 42 and is constructed between a pair of horizontal walls 45. Bar 41 is an example of a lower wall. An opening 43 is formed between the bar 41 and the upper wall 42. The opening 43 has a similar front shape to the front shape of the shutter 5, and is slightly larger in area than the shutter 5.

FIG. 9 is a longitudinal cross-sectional view of the cover member 4 and the recess 26 along the front-back direction D. As shown in FIG. FIG. 9 shows a longitudinal section at the center in the width direction W. As shown in FIG. 9, the bar 41 is formed with an inclined surface 411 that slopes backward from an upper end 412 toward a lower end 413. The cover member 4 is provided from the upper surface 27 of the toilet main body 2 to the recess 26 at a position spaced forward F from the recess 26. The lower end 413 of the bar 41 is lower than the top surface 263 of the recess 26 at its lowest height. The lower end 413 of the bar 41 is higher than the lower end 264 of the front end 261 of the recess 26 . The bar 41 is spaced forward F from the front end 261 of the recess 26, and the gap between the bar 41 and the front end 261 of the recess 26 constitutes the overflow drainage channel 25.

FIG. 11 is a cross-sectional view of the periphery of the cover member 4 viewed from below. As shown in FIG. 11, the pair of horizontal walls 45 have a curved shape along the rear vertical surface 214 of the toilet bowl 21. As shown in FIG. A pair of horizontal walls 45 of the cover member 4 are arranged along the standing surface 214 at a position away from the standing surface 214 at the rear of the toilet bowl 21 . As shown in FIGS. 8 to 12, the back surfaces of the lower end portions 452 of the pair of lateral walls 45 are curved and inclined slightly more rearward than the upper portions 451. As shown in FIGS. The back surface 453 of the side wall 45 corresponds to the inclined portion. The lower end portions 452 of the pair of horizontal walls 45 are closer to the rear standing surface 214 of the toilet bowl 21 than the upper portion 451 is. Since the back surface 453 of the side wall 45 is inclined, it can be covered so that the gap between the side wall 45 and the opening edge 271 of the toilet main body 2 is narrowed. The lower part of the front end 32 of the functional component 30 can be covered over a wide area. As a result, the effect of blocking splashes by the side wall 45 can be enhanced.

The inclined portion may be such that at least the lower back surface of the horizontal wall 45 is inclined rearward. For example, the slope portion may be configured to slope from the top to the bottom of the horizontal wall 45. For example, the lower part of the horizontal wall 45 may be thicker than the upper part, so that the back surface slopes toward the rear.

As shown in FIG. 5, in the front-rear direction D, the front end 32 of the functional component 30 and the shutter 5 are disposed further forward F than the front end 261 of the recess 26. As shown in FIG. The length D2 in the front-back direction D from the front end 261 of the recess 26 to the front end 241 of the rear shelf 242 is longer than the length D1 in the front-back direction D from the front end 261 of the recess 26 to the lower end 321 of the front end 32. . The length D2 at the rear shelf surface 242 is longer than the length D1, which is the length of the front end 32 of the functional component 30 protruding from the front end 261 of the recess 26. In the front-rear direction D, the front end 32 of the functional component 30 and the shutter 5 are arranged above the rear part of the shelf 24, that is, between the front end 261 of the recess 26 and the front end 241 of the rear shelf 242. . In other words, in the front-rear direction D, the front end portion 32 of the functional component 30 and the shutter 5 are arranged at the rear of the water storage portion 211.

As a result, a distance between the front end portion 32 of the functional component 30 and the shutter 5 and the water reservoir portion 211 can be secured. Therefore, during use, droplets generated when urine lands on water in the water reservoir 211 are unlikely to adhere to the front end 32 of the functional component 30 and the shutter 5.

Since the cover member 4 is provided in front F of the front end portion 32 of the functional component 30, the above-mentioned droplets are prevented from adhering to the functional component 30. In particular, since the cover member 4 includes the bar 41 below the front end 32 of the functional component 30 and the shutter 5, the bar 41 can block splashes from the water reservoir 211.

In the front-back direction D, a length D3 from the front end 261 of the recess 26 to the lower end 413 of the cover member 4 is longer than the length D1 and shorter than the length D2.

As shown in FIGS. 5 and 9, the bar 41 is formed with an inclined surface 411 that slopes backward from an upper end 412 toward a lower end 413. Since the inclined surface 411 is provided, the lower part of the front end portion 32 of the functional component 30 can be widely covered. As a result, the droplet blocking effect of the bar 41 can be enhanced.

The operation of the toilet device 1 will be explained. When the shutter 5 is closed, the periphery of the shutter 5 is covered with the cover member 4, and the front end 32 of the functional component 30 is not exposed to the front F of the toilet bowl 21. When used by a user, urine and splashes that bounce from the water reservoir 211 are blocked by the bar 41, the upper wall 42, and the side wall 45 of the cover member 4. As a result, it is possible to prevent droplets from adhering to the lower part of the front end portion 32 of the functional component 30 disposed at the rear R of the cover member 4. Even when the shutter 5 is open due to the use of the functional component 30, the periphery of the shutter 5 is covered with the cover member 4, which prevents the above-mentioned droplets from adhering to the lower part of the front end 32 of the functional component 30. Since the lower part of the front end 32 of the functional component 30 is a part that is difficult for the user to clean, the burden of cleaning can be reduced by preventing droplets from adhering to the lower part of the front end 32.

Since the recess 26 is recessed lower than the upper surface 27, when overflow water accumulates in the toilet bowl 21 at the time of overflow, the overflow water is drained from the overflow drainage channel 25 of the recess 26. Since the recess 26 is lower than the upper surface 27, overflow water is drained from the overflow drainage channel 25 without overflowing from the upper surface 27 side. The recess 26 is further away from the front end 32 of the functional component 30 toward the rear R, and the overflow drainage channel 25 has a sufficient opening in the width direction W, so that a sufficient flow rate is ensured during drainage. Overflow water can be drained quickly.

In FIG. 8, the cover member 4 shows an example in which a mounting portion 44, an upper wall 42, a pair of side walls 45, and a bar 41 are integrally formed. A configuration in which each part of the cover member 4 is integrally formed is not essential. The top wall, side wall, and bar of the cover member may be formed of separate members and fixed to the mounting portion.

An upper cover 6 is provided above the accommodating portion 20 of the toilet main body 2. The upper cover 6 is an exterior body that covers the upper part of the housing section 20 and the functional component 30. The upper cover 6 and the cover member 4 are removably attached to the toilet main body 2. The upper cover 6 and the cover member 4 may be integrally formed, as shown in FIGS. 13 and 14. A structure in which the bar 41 is not provided may be used, as in a modified cover member 4A shown in FIGS. 15 and 16.

In the toilet device 1 according to the embodiment, since the accommodating portion 20 is formed, at least a portion of the functional component 30 can be stored in the rear R of the toilet bowl 21. Therefore, the amount of protrusion of the upper part of the toilet device 1 can be suppressed compared to the case where functional parts are arranged at the upper part of the toilet device 1. The installation location of functional components is not conspicuous at the top of the toilet device where the user's line of sight can easily reach. As a result, the functional component 30 is less likely to affect the external design of the toilet device 1, and the degree of freedom in design can be increased.

As shown in FIG. 7, in the toilet device 1 according to the embodiment, the base plate 33 is supported by the base plate support portion 22 of the toilet main body 2. As shown in FIG. Base plate 33 is fixed to base plate support 22 with screws. The base plate support part 22 is provided at a position lower than the upper surface 27 and higher than the recessed part 26. Therefore, by placing the base plate 33 on the base plate support portion 22 and fixing it with screws, the functional component 30 can be held at a position sufficiently away from the recess 26 upward. As a result, the functional component 30 can be placed above the recess 26 with a wide gap between the functional component 30 and the recess 26 in the vertical direction H. As a result, a sufficiently wide opening is formed above the recess 26, and the overflow drainage channel 25 with a wide opening is formed. With this configuration, compared to the case where the functional component 30 is supported and fixed to the upper surface 27, the amount of upward protrusion of the functional component 30 from the housing portion 20 can be suppressed.

In the toilet device 1 according to the embodiment, since at least a part of the recess 26 constitutes the overflow drainage channel 25, the overflow water that has flowed into the drainage channel 250 in the accommodating portion 20 is drained from the overflow drain port 251 to the lower part of the toilet device 1. Allows for smooth drainage.

In the toilet device 1 according to the embodiment, since the cover member 4 covers a part between the lower part of the shutter 5 and the toilet bowl 21, the front end 32 of the functional component 30 may be damaged by splashes from the toilet bowl 21 side during use. Prevents the bottom from getting dirty. That is, the cover member 4 blocks splashes from the toilet bowl 21 side, and prevents the droplets from adhering to the lower part of the front end 32 of the functional component 30. Since the lower part of the front end 32 of the functional component 30 is a place that is difficult for the user to clean, the trouble of cleaning can be saved by preventing the lower part of the front end 32 from getting dirty.

Since the cover member 4 of the embodiment includes a bar 41 that covers the lower part of the shutter 5 along the width direction W, when the shutter 5 is closed, droplets from the lower part of the toilet bowl 21 to the lower part of the shutter 5 are released from the functional parts. 30 can be prevented from adhering to the front end 32 of 30. For example, when a man urinates in a standing position facing backward R, urine that lands in the wash water stored in the water reservoir 211 may splash around the water reservoir 211 as droplets. Such droplets scatter from below to above. However, since the lower part of the shutter 5 is covered along the width direction W, the bar 41 can block the droplets. Since the lower part of the shutter 5 is covered by the bar 41 along the width direction W, the bar 41 can block splashes. Even when the shutter 5 is open, the bar 41 of the cover member 4 can prevent droplets from adhering to the lower surface of the front end 32 of the functional component 30. For example, when the cleaning nozzle device 31 is used, if the cleaning water spouted from the cleaning nozzle device 31 splashes in the toilet bowl 21, the splash is blocked by the bar 41, and the droplets adhere to the lower part of the front end 32 of the functional component 30. can be prevented.

In the toilet device 1 according to the embodiment, the bar 41 of the cover member 4 is arranged farther forward F than the front end 261 of the recess 26, and a gap is formed between the bar 41 and the recess 26. This gap functions as an overflow drainage channel 25, and overflow water is drained to the rear of the toilet bowl body 2. A wide gap can be formed in the width direction W at the rear of the cover member 4, and the drainage flow rate of overflow water can be increased. As a result, even if an overflow occurs in a toilet device that supplies a large amount of water from the spout 210, for example, the overflow water can be smoothly drained.

In the toilet device according to the embodiment, the lower end of the bar 41 of the cover member 4 is arranged at a higher position than the lower end of the lowest position of the recess 26. Therefore, when an overflow occurs, the overflow water can be drained smoothly without being hindered from draining from the overflow drain channel 25.

Since the bar 41 of the cover member 4 has the inclined surface 411, it can block splashes from below more effectively.

In the cover member 4, since the upper wall 42, the bar 41, and the pair of side walls 45 are integrally formed, no gap is formed between the shielding parts, and the cover member 4 can be easily cleaned.

Since the cover member 4 has an opening 43 formed around the shutter 5 and a wall formed around the shutter 5 by the upper wall 42, the bar 41, and the pair of side walls 45, it is possible to prevent droplets from adhering to the functional component 30. can be effectively prevented.

In the toilet device 1 according to the embodiment, the shutter 5 is attached to the functional component 30. The position where the shutter 5 is attached is not limited to the functional component 30. For example, it may be provided on the cover member 4. Specifically, it may be rotatably attached to the opening 43 of the cover member 4. The configuration in which the functional component 30 is provided with the shutter 5 is not an essential configuration. The cover member may be provided in front of the functional component 30 and configured to be able to prevent droplets from adhering to the functional component 30.

The toilet device 1 according to the embodiment is an example of a wall-mounted toilet device. The toilet device is not limited to a wall-mounted type, but can also be applied to a toilet device placed on the floor.

In the toilet device, the toilet seat unit and the functional component 30 may be provided independently.

The embodiments of the present disclosure have been described above in detail with reference to the drawings. The specific configuration is not limited to this embodiment, and may include design changes. The components shown in the above-described embodiments can be configured by appropriately combining them.

DESCRIPTION OF SYMBOLS 1... Flush toilet device, 2... Toilet main body, 30... Functional parts, 4... Cover member, 21... Toilet bowl, 25... Overflow drainage channel, 26... Recessed part, 27... Top surface, 41... Bar, 42... Top wall, 45...Side wall, 411...Slope surface

Claims (8)

a toilet bowl main body having a toilet bowl and a recess formed by recessing a part of the rear upper surface of the toilet bowl;
a functional component partially provided above the recess;
a cover member that covers the front side and lower side of the lower part of the front end of the functional component in the toilet bowl;
A flush toilet device equipped with. The flush toilet device according to claim 1, wherein the cover member includes a lower wall that covers a lower part of the front end of the functional component along the width direction of the front end. The lower wall of the cover member is disposed farther forward than the recess,
The flush toilet device according to claim 2, wherein a gap is formed between the lower wall and the recess. The flush toilet device according to claim 3, wherein a lower end of the lower wall is located at a higher position than a lower end of the recess. The cover member is disposed above the front end and includes an upper wall formed along a rear opening edge of the toilet main body,
The lower wall has an inclined surface that slopes backward from the upper end toward the lower end,
The flush toilet device according to any one of claims 2 to 4, wherein the upper wall and the lower wall are integrally formed. The flush toilet bowl according to any one of claims 1 to 5, wherein the cover member is provided on both sides of the functional component in the width direction and includes a horizontal wall having an inclined portion that slopes rearward toward a lower end. Device. comprising an exterior body that covers the rear part of the toilet main body and the functional parts,
The flush toilet device according to any one of claims 1 to 6, wherein the exterior body and the cover member are integrally formed. At least a portion of the recess constitutes an overflow drainage channel that allows overflow water to flow from the toilet bowl to the outside of the toilet bowl,
The flush toilet device according to any one of claims 1 to 7, wherein the cover member is disposed further forward and away from the overflow drainage channel.

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