JP2023018949A - flush toilet - Google Patents

Abstract

To provide a water closet capable of improving strength of a connection site between a base seat part and a skirt part.SOLUTION: A water closet in the embodiment includes a toilet bowl body, and a trap pipeline, the toilet bowl body having a bowl part, the skirt part, and the base seat part, the bowl part serving for receiving dirt, the skirt part covering a front region of the bowl part, the base seat part being provided continuously with the skirt part and able to be fixed to a floor surface, the trap pipeline being extended backward from the bowl part to enable the discharge of dirt from the bowl part, the trap pipeline having a rising pipe and a falling pipe, the rising pipe being communicated with the bottom of the bowl part and heading upward, the falling pipe being communicated with the rising pipe and heading downward, the toilet bowl body having a connection part, the connecting part connecting the base seat part to the skirt part while continuously changing at a predetermined curvature radius ranging from the base seat part to the skirt part.SELECTED DRAWING: Figure 2

Description

The disclosed embodiments relate to flush toilets.

2. Description of the Related Art Conventionally, in a so-called floor-standing flush toilet installed on the floor of a toilet room, the front region of the bowl portion that receives waste is covered in the toilet body, and the rear region of the bowl portion is open (bowl Some have a skirt portion that does not cover the rear region of the portion (see, for example, Patent Document 1).

JP 2015-134993 A

However, in the conventional flush toilet bowl as described above, there is a problem that the connection between the pedestal portion and the skirt portion for fixing the toilet bowl body to the floor surface is difficult when the toilet bowl is installed (when the toilet bowl is in contact with the floor surface) or when it is lifted. or during rough use at public sites. As a result, the joint between the pedestal and the skirt may be damaged. As described above, the conventional flush toilet has room for improvement in terms of increasing the strength of the connecting portion between the base portion and the skirt portion.

An object of one aspect of the embodiments is to provide a flush toilet capable of improving the strength of the connecting portion between the pedestal portion and the skirt portion.

A flush toilet according to an aspect of an embodiment includes a bowl portion that receives waste, a skirt portion that covers a front region of the bowl portion, and a pedestal that is provided continuously from the skirt portion and can be fixed to a floor surface. a toilet bowl body having a portion; a riser pipe extending rearwardly from the bowl portion and communicating with the bottom portion of the bowl portion and upward so as to be able to discharge waste from the bowl portion; and a descending pipe extending downward, the toilet body connecting the pedestal portion and the skirt portion and continuously changing with a predetermined curvature from the pedestal portion to the skirt portion. have a connection that is

According to such a configuration, since the connecting portion connecting the pedestal portion and the skirt portion continuously changes with a predetermined curvature from the pedestal portion to the skirt portion, the floor-mounted flush toilet can be To disperse the stress applied to the connecting part (connecting part) between the pedestal part and the skirt part, which is a large force during installation (contact with the floor surface), lifting, or rough use at public sites. can be done. As a result, it is possible to suppress breakage of the connecting portion (connecting portion) between the pedestal portion and the skirt portion, and improve the strength of the connecting portion (connecting portion).

Further, in the flush toilet described above, the predetermined curvature includes a plurality of curvatures that change as the connecting portion moves from the pedestal portion toward the skirt portion.

According to such a configuration, the stress can be dispersed more effectively by, for example, reducing the curvature of the portion where the stress concentrates in the connecting portion.

Further, in the flush toilet described above, the descending pipe is provided so as to face the skirt portion, and the connecting portion has a vertical dimension that decreases from the outside to the inside of the toilet body.

According to such a configuration, in the case of a shape in which the descending pipe extending downward from the ascending pipe returns toward the skirt portion, the gap between the trap pipe line extending rearward from the bowl portion and the skirt portion can be narrowed. In addition, since the connecting portion can be enlarged in the outer portion of the toilet body, an increase in the size of the flush toilet can be suppressed. As a result, it is possible to suppress breakage of the connecting portion (connecting portion) between the pedestal portion and the skirt portion while suppressing an increase in the size of the flush toilet.

Further, in the above-described flush toilet, the downcomer is provided so as to face the skirt portion, and the connecting portion is in front of the downcomer so as to enter between the downcomer and the skirt as it approaches the downcomer. Located in

According to such a configuration, when the descending pipe extending downward from the ascending pipe is shaped to return toward the skirt portion, the space between the descending pipe and the skirt portion can be narrowed, and the outer portion of the toilet body can be reduced. Since the connecting part can be enlarged in the above, it is possible to suppress an increase in the size of the flush toilet. As a result, it is possible to suppress breakage of the connecting portion (connecting portion) between the pedestal portion and the skirt portion while suppressing an increase in the size of the flush toilet.

According to one aspect of the embodiment, it is possible to improve the strength of the joint between the base portion and the skirt portion.

FIG. 1 is a perspective view (Part 1) showing a flush toilet according to an embodiment. FIG. 2 is a perspective view (No. 2) showing the flush toilet according to the embodiment. FIG. 3 is a side sectional view showing the flush toilet according to the embodiment. FIG. 4 is an enlarged perspective view showing a connecting portion. FIG. 5 is a diagram showing vertical dimensions of the connecting portion. FIG. 6 is an explanatory diagram of a modification of the connecting portion.

Hereinafter, embodiments of the flush toilet disclosed in the present application will be described in detail with reference to the accompanying drawings. In addition, this invention is not limited by embodiment shown below.

<Overall Configuration of Flush Toilet>
First, the overall configuration of a flush toilet 1 according to an embodiment will be described with reference to FIGS. 1 to 3. FIG. 1 and 2 are perspective views showing a flush toilet 1 according to an embodiment, respectively. 1 shows a diagram of the flush toilet 1 according to the embodiment as seen obliquely from the front, and FIG. 2 shows a diagram of the flush toilet 1 according to the embodiment as seen from the oblique rear. FIG. 3 is a side sectional view showing the flush toilet 1 according to the embodiment. 3 is a sectional view taken along the line A--A in FIG. 1 (central sectional view in the left-right direction).

Each figure including FIGS. 1 to 3 shows a three-dimensional orthogonal coordinate system including a Z-axis whose positive direction is vertically upward (upward). Hereinafter, for convenience of explanation, the positive direction of the X-axis is defined as rightward, the negative direction of the X-axis is defined as leftward, the positive direction of the Y-axis is defined as forward, and the negative direction of the Y-axis is defined as rearward. Therefore, the X-axis direction is sometimes referred to as the horizontal direction, the Y-axis direction as the front-rear direction, and the Z-axis direction as the vertical direction.

As shown in FIGS. 1 and 2, the flush toilet 1 is of a floor standing type installed on the floor surface FS of the toilet room TR. The flush toilet bowl 1 may be of a washdown type or of a siphon type, for example. For example, in the case of the flush toilet 1, flush water is supplied from a water supply pipe (not shown) connected to a water storage tank (not shown), which is a water supply source, to a toilet bowl main body 2, which will be described later.

The flush toilet bowl 1 is made of ceramic as a whole. The flush toilet bowl 1 may be made of resin instead of pottery, or may be manufactured by combining pottery and resin.

As shown in FIGS. 1 to 3, the flush toilet 1 includes a toilet body 2 and a trap pipe line 3. As shown in FIGS. The toilet body 2 includes a bowl portion 21 , a rim portion 22 , a shelf portion 23 , a water conduit 24 , a skirt portion 25 , a base portion 26 and a connection portion 27 .

The bowl portion 21 is a portion that receives waste and is formed in a bowl shape. A bottom portion of the bowl portion 21 serves as a water storage portion 211, which stores a predetermined amount of water. A trap pipe line 3 , which will be described later, is connected to the lower end of the water storage portion 211 .

The rim portion 22 is disposed at the upper edge portion of the bowl portion 21 and formed in an annular shape over the entire circumference as the upper edge portion of the bowl portion 21 . As shown in FIG. 3, a shelf portion 23 is provided below the rim portion 22 . The shelf portion 23 is formed as a substantially flat surface extending outward from the upper edge portion of the bowl portion 21 inside the rim portion 22 and is formed in an annular shape over substantially the entire circumference of the bowl portion 21 .

The water conduit 24 extends forward from the cleaning water supply port 241 and is connected to the rim water conduit 221 of the rim portion 22 . The water conduit 24 extends to the bowl portion 21 from the vicinity of the supply port 241 arranged substantially in the center in the left-right direction in the rear portion of the toilet body 2 .

In the water conduit 24, for example, the cleansing water is rectified satisfactorily and the directionality of the cleansing water is enhanced. The washing water is discharged as a strong flow.

Further, the water conduit 24 is formed, for example, so that a part thereof is parallel to a part of the confluence portion of the rim water conduit 221 . In this case, the direction of the flow of wash water circulating around the rim water passage 221 is substantially the same at the outlet of the water conduit 24, that is, in the vicinity of the wash water spout (not shown). The wash water from the rim water discharge port) can be made to flow around the rim water passage 221 in a state in which the rim water passage 221 is directed in substantially the same turning direction and the water force is maintained (a state in which the flow rate and flow velocity are substantially maintained). can.

As shown in FIGS. 1 and 2, skirt portion 25 is disposed over the front region of bowl portion 21 . The skirt portion 25 forms a vertical wall in the front area of the bowl portion 21 . The skirt portion 25 is provided only in the front region of the bowl portion 21 and is not provided in the rear region of the bowl portion 21 . Therefore, the rear region of the bowl portion 21 is open.

Note that the rear region of the bowl portion 21 refers to a region rearward of a position where the trap pipe line 3 (described later) is connected to the rear surface portion 252 of the skirt portion 25 (described later) in a side view. A front region is defined as a front region from a position where the portion 25 is connected to the rear surface portion 252 .

The skirt portion 25 includes a side peripheral surface portion 251 and a rear surface portion 252 . In the front region of the bowl portion 21, the side peripheral surface portion 251 covers the bowl portion 21 from one of the left and right sides to the other side of the bowl portion 21 via the front portion. The rear face portion 252 covers the rear portion of the front region of the bowl portion 21 .

The pedestal portion 26 is provided behind the skirt portion 25 so as to be continuous with the skirt portion 25 . The pedestal portion 26 has an upper surface 261 that is, for example, substantially orthogonal to the rear surface portion 252 of the skirt portion 25 . The trap pipe line 3 is arranged on the upper surface 261 of the pedestal portion 26 .

The pedestal portion 26 is also provided with a mounting hole 262 penetrating the pedestal portion 26 in the upward direction. The pedestal portion 26 is fixed to the floor surface FS by attaching a fixture (not shown) to the attachment hole 262 . By fixing the pedestal portion 26 to the floor surface FS in this manner, the flush toilet 1 is fixed to the floor surface FS.

The connecting portion 27 is a connecting portion between the pedestal portion 26 and the skirt portion 25 . The connection portion 27 extends in the left-right direction along the front edge portion 261a (see FIG. 4) of the upper surface 261 of the base portion 26 and the lower edge portion 252a (see FIG. 4) of the rear surface portion 252 of the skirt portion 25. there is Details of the connecting portion 27 will be described later with reference to FIG. 4 and the like.

As shown in FIGS. 1 to 3, the trap pipe line 3 is a pipe line extending rearward from the bowl portion 21 so as to be able to discharge waste from the bowl portion 21 . The trap line 3 comprises an ascending pipe 31 and a descending pipe 32 .

The upstream end (front end) of the riser pipe 31 is connected to the bottom of the bowl portion 21 (water storage portion 211). The riser pipe 31 is a pipe line that communicates with the bottom portion (reserved water portion 211) of the bowl portion 21 and slopes upward as it goes rearward, that is, rises.

The downstream end (front end) of the descending pipe 32 is connected to the downstream end (rear end) of the ascending pipe 31 . The descending pipe 32 is a conduit that communicates with the rear end of the ascending pipe 31 and extends downward. The descending pipe 32 is a pipeline formed to return forward after or while descending. For this reason, the downcomer 32 includes a downcomer 321 and a forward slope 322 .

The descending portion 321 is a portion extending downward on the upstream side of the descending pipe 32 . The forward inclined portion 322 is a portion that is located downstream of the descending pipe 32, is connected to the lower end portion that is downstream of the descending portion 321, and extends downward while being inclined forward. Thus, the descending pipe 32 is formed so as to face the front skirt portion 25 after descending. Note that the descending pipe 32 may be formed so as to move toward the front skirt portion 25 while descending.

Further, by forming the descending pipe 32 to face the front skirt portion 25, that is, to return to the front, the size of the flush toilet 1 in the front-rear direction can be shortened. . As a result, the size of the flush toilet 1 can be reduced.

The lowest end of the forward inclined portion 322 , that is, the lowest end of the downcomer 32 is connected to the discharge port 33 for discharging flush water and waste from the flush toilet 1 . In addition, the discharge port 33 is connected to the equipment pipe 10 which is an external pipe of the flush toilet 1 .

The trap pipe line 3 also includes a first curtain plate 34a and a second curtain plate 34b, which are plate-shaped reinforcing members. The first curtain plate 34a is located between the ascending pipe 31, the descending pipe 32 (the descending portion 321 and the forward inclined portion 322), the rear surface portion 252 of the skirt portion 25, the upper surface 261 of the pedestal portion 26, and the connecting portion 27. is placed in

The second curtain plate 34b is arranged between the upper portion of the trap pipe 3 (the ascending pipe 31 and the descending pipe 32) and the lower portion behind the bowl portion 21 of the toilet body 2. As shown in FIG. In addition, the second curtain plate 34b has a curvature change at the rear end edge that is not surrounded by members (opened). In this way, the curvature of the rear edge of the second curtain plate 34b is changed, so that even if a force is applied in the vertical direction, the stress applied to the rear edge can be dispersed and the strength can be improved. can be improved.

The flush toilet 1 is provided with a jet spout 4 in front of the trap duct 3 for injecting cleansing water toward the trap duct 3 (rising pipe 31). As shown in FIG. 3, the jet water outlet 4 is formed at the outlet of the jet water channel 41, and generates a siphon action by injecting cleansing water from the jet water channel 41 with a strong water force.

<Connector>
Next, the connecting portion 27 will be described with reference to FIGS. 4 to 6. FIG. FIG. 4 is an enlarged perspective view showing the connecting portion 27. As shown in FIG. FIG. 5 is a diagram (schematic diagram) showing the vertical dimension of the connecting portion 27. As shown in FIG.

As described above, the connection portion 27 is a connection portion between the base portion 26 and the skirt portion 25, and along the front edge portion 261a of the upper surface 261 of the base portion 26 and the lower end edge portion 252a of the rear surface portion 252 of the skirt portion 25. and extends in the left-right direction.

Here, in the case of the floor-mounted flush toilet 1 in which the skirt portion 25 covers only the front region of the bowl portion 21, the connecting portion between the pedestal portion 26 and the skirt portion 25 does not have any When contacting with the surface FS), lifting, or rough use at a public site, a large stress is applied. For example, if the connecting portion between the pedestal portion 26 and the skirt portion 25 forms an angle, stress may concentrate on the connecting portion and the connecting portion may be damaged.

For this reason, in the present embodiment, a structure is adopted in which stress is not concentrated at the connecting portion (connecting portion 27 ) between the base portion 26 and the skirt portion 25 .

As shown in FIG. 4, the connecting portion 27 continuously changes (curvature changes) with a predetermined curvature from the front edge portion 261a of the upper surface 261 of the base portion 26 to the lower edge portion 252a of the rear surface portion 252 of the skirt portion 25. ing. That is, the connecting portion 27 is formed to curve with a predetermined curvature in side view.

The predetermined curvature may be a constant curvature or an indefinite curvature from the front edge 261a of the upper surface 261 of the base portion 26 to the lower edge 252a of the rear surface 252 of the skirt portion 25. .

In the case of an indefinite curvature, the predetermined curvature includes a plurality of curvatures such that the curvature changes from the front edge 261a of the upper surface 261 toward the lower edge 252a of the rear surface 252. . In this way, when the predetermined curvature includes a plurality of curvatures, the stress can be leveled by, for example, reducing the curvature of the portion where the stress concentrates in the connecting portion 27 .

Further, as shown in FIG. 4 , the connecting portion 27 of the forward inclined portion 322 is inserted between the rear surface portion 252 of the skirt portion 25 as it approaches the forward inclined portion 322 on the downstream side of the downcomer pipe 32 . It is formed to be positioned forward. In this way, the connection portion 27 enters between the front inclined portion 322 and the rear surface portion 252, so that the shortest distance D between the downcomer pipe 32 (the front inclined portion 322) and the skirt portion 25 (the rear surface portion 252) is can be shortened.

As shown in FIG. 5, the connecting portion 27 is formed such that the vertical dimension of the toilet body 2 (see FIG. 3, etc.) decreases from the outside to the inside. That is, the connection portion 27 extends from the front edge portion 261a of the upper surface 261 (see FIG. 4) of the pedestal portion 26 to the lower edge portion 252a of the rear surface portion 252 of the skirt portion 25 (see FIG. 4) as it goes from the outside to the inside of the toilet bowl body 2 (see FIG. 4). (see reference).

In addition, the outside of the toilet body 2 refers to the direction (centrifugal direction) away from the center of the toilet body 2 in plan view, and the inside of the toilet body 2 refers to the direction toward the center of the toilet body 2 in plan view. (Centripetal direction) side.

Here, the connecting portion 27 has a constant shape, such as a perfect circular arc, in a side view from the front edge portion 261a of the upper surface 261 of the base portion 26 to the lower edge portion 252a of the rear surface portion 252 of the skirt portion 25. Although it changes with a curvature, it may change with an indefinite curvature as described above.

That is, the connecting portion 27 may have a plurality of arbitrary curvatures in a side view from the front edge portion 261a of the upper surface 261 of the base portion 26 to the lower edge portion 252a of the rear surface portion 252 of the skirt portion 25 . In this case, the connection portion 27 has a first curvature from the front edge portion 261a of the upper surface 261 of the base portion 26 to a predetermined first position, a second curvature from the first position to a predetermined second position, and a curvature from the second position. The skirt portion 25 has a plurality of curvatures up to the lower end edge portion 252a of the rear surface portion 252, such as a third curvature up to a predetermined third position.

As described above, according to the embodiment described above, the connection portion 27 connecting the base portion 26 and the skirt portion 25 continuously changes with a predetermined curvature from the base portion 26 to the skirt portion 25. In the floor-standing flush toilet 1, the pedestal portion 26 that exerts a large force when the flush toilet 1 is installed (when in contact with the floor surface FS), when lifted, or when used in a disorderly manner at a public site. The stress applied to the connecting portion (connecting portion 27) with the skirt portion 25 can be dispersed. As a result, it is possible to suppress breakage of the connecting portion (connecting portion 27) between the pedestal portion 26 and the skirt portion 25, and improve the strength of the connecting portion (connecting portion 27).

Moreover, since the predetermined curvature includes a plurality of curvatures, the stress can be dispersed more effectively by, for example, reducing the curvature of the portion where the stress concentrates in the connection portion 27 .

Also, when the connecting portion 27 is formed so that the dimension in the vertical direction becomes smaller from the outer side to the inner side of the toilet bowl body 2 , the descending pipe 32 of the trap pipe line 3 is shaped so as to return toward the skirt portion 25 . , the space between the descending pipe 32 and the skirt portion 25 can be narrowed, and the connection portion 27 can be enlarged at the outer portion of the toilet body 2, so that the size of the flush toilet 1 can be suppressed. can. As a result, it is possible to suppress breakage of the connecting portion (connecting portion 27 ) between the base portion 26 and the skirt portion 25 while suppressing an increase in the size of the flush toilet 1 .

In addition, the connecting portion 27 is positioned in front of the descending pipe 32 (forward inclined portion 322) so as to enter between the skirt portion 25 as it approaches the descending pipe 32 (forward inclined portion 322). In the case where the descending pipe 32 of the trap pipe line 3 is shaped so as to return toward the skirt portion 25, the space between the descending pipe 32 and the skirt portion 25 can be narrowed, and at the outer portion of the toilet body 2, the connecting portion 27 can be made larger, so the increase in size of the flush toilet 1 can be suppressed. As a result, it is possible to suppress breakage of the connecting portion (connecting portion 27 ) between the base portion 26 and the skirt portion 25 while suppressing an increase in the size of the flush toilet 1 .

In the above-described embodiment, the connecting portion 27 has a constant or inconstant curvature in a side view from the front edge portion 261a of the upper surface 261 of the base portion 26 to the lower edge portion 252a of the rear surface portion 252 of the skirt portion 25. However, if the connecting portion 27 changes with an indefinite curvature, as shown in FIG. It may change so as to transition.

In this case, as shown in FIG. 6, the major axis of the ellipse changes in curvature like an arc along the vertical direction, so that the descending pipe 32 (see FIG. 4) and the rear surface portion 252 (see FIG. 4) of the skirt portion 25 4) can be further shortened (see FIG. 4). Thereby, further miniaturization of the flush toilet 1 (see FIG. 3, etc.) can be achieved.

Further effects and modifications can be easily derived by those skilled in the art. Therefore, the broader aspects of the invention are not limited to the specific details and representative embodiments so shown and described. Accordingly, various changes may be made without departing from the spirit or scope of the general inventive concept defined by the appended claims and equivalents thereof.

1 flush toilet bowl 2 toilet body 3 trap pipeline 21 bowl portion 25 skirt portion 26 pedestal portion 27 connection portion 31 ascending pipe 32 descending pipe 211 bottom portion (pooled water portion)
FS floor

Claims (4)

a toilet body having a bowl portion for receiving waste, a skirt portion covering a front region of the bowl portion, and a pedestal portion provided continuously from the skirt portion and capable of being fixed to a floor surface;
an ascending pipe extending rearwardly from the bowl portion and communicating with the bottom portion of the bowl portion and extending upward so as to be able to discharge waste from the bowl portion; and a descending pipe communicating with the ascending pipe and extending downward. and a trap line having
The toilet body includes:
A flush toilet, comprising: a connecting portion that connects the pedestal portion and the skirt portion, and has a connecting portion that continuously changes with a predetermined curvature from the pedestal portion to the skirt portion. The predetermined curvature is
2. The flush toilet according to claim 1, wherein the connection portion includes a plurality of curvatures that change from the base portion toward the skirt portion. The downcomer is
provided so as to face the skirt portion,
The connecting part is
The flush toilet according to claim 1 or 2, wherein the vertical dimension of the toilet body decreases from the outside to the inside. The downcomer is
provided so as to face the skirt portion,
The connecting part is
The flush toilet according to any one of claims 1 to 3, wherein the flush toilet is positioned in front of the downcomer pipe so as to enter between the skirt portion as it approaches the downcomer pipe.

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