JP6981594B2 - Flush toilet - Google Patents

Description

The present invention relates to a flush toilet, and hereinafter, the flush toilet is abbreviated as WC (Water Closet).

WCs that include a WC container and a wash water supply port for the WC container, as well as a drainage outlet, usually connected via a suction pipe (siphon), are commonly used and known. In recent years, additional functions such as shower unit (shower configuration) and deodorization have been the targets of technological development.

The WC particularly has an upwardly open hollow shaped portion, i.e., a flush toilet body containing a WC container, which body is usually made of ceramic, but does not necessarily have to be made of ceramic. Further technical equipment may be provided within the ceramic portion of the flush toilet body, within the additional portion on the ceramic body, or behind / below the cover on the ceramic body.

A conventional flush toilet body has a so-called cleaning edge (cleaning rim) on the upper or upper inner edge of the WC container, that is, a plurality of downward inflow openings for allowing washing water to flow into the WC container. It has one circular wash water channel provided. The cleaning edge functions like a ring-shaped shower and supplies cleaning water into the container. In addition, WCs are known to have a swirling wash water stream within the WC container, which allows the wash water to flow into the container almost tangentially before being drained through the suction pipe and drain outlet. By making it, a vortex is generated in the container.

As a prior art, Patent Document 1 by the same right holder can be mentioned. Patent Document 1 relates to an asymmetric internal shape of a WC container for generating or assisting a swirling motion of wash water in a WC container. With this WC container, good cleaning results can be obtained with a relatively small amount of cleaning water. Moreover, this WC vessel has been found to operate very quietly.

European Registered Patent No. 2604761A

An object of the present invention is to provide a further improved WC container.

This problem is solved by claim 1, the content of which is described in detail below, along with different preferred embodiments. Preferred embodiments of the apparatus (equipment) according to the present invention and the method of use thereof are described in other claims. It should be understood that the features contained therein and the disclosures of the following specification do not always make a clear distinction between the two invention categories in principle.

In order to explain the internal shape of the WC container and the washing water flow in an easy-to-understand manner, the coordinate system when the container opening is viewed in the plan view is used (assumed). In this case, assume a circular or elliptical container opening shape (in the sense of an elongated and distorted circular shape). The shape of the opening of this container generally resembles the internal shape of the container, at least in its upper region. Therefore, it is meaningful to set the longest inner dimension passing through the opening shape of the container as the vertical axis and the vertical bisector as the horizontal axis. This means that in the case of a general WC container, in a general sitting position on the WC, the user is looking in the direction of the vertical axis and both shoulders are in the direction of the horizontal axis. When mounted on a wall, the vertical axis is generally perpendicular to the wall and the horizontal axis is parallel to the wall.

As a result of numerous experiments and investigations by the inventor, two important core ideas have been obtained. First, the WC container described in Patent Document 1 above, which has a marked swirling wash water flow, is very advantageous in terms of wash results, noise and water saving potential, but other manufacturers in this regard. Also makes similar claims with respect to other WC containers with swirling wash water streams. However, in the case of a swirling wash stream, as opposed to a conventional WC container with a typical wash edge, i.e. a WC container with a wash mechanism such as a widely distributed shower. In general, if the wash water rate is too high, there is a risk that the wash water will spill over the upper edge (upper edge) of the container. This risk depends on the specific shape of the internal shape of the vessel and the resulting water flow path (water flow pattern), as well as how large the upper edge (upper rim) of the internal shape of the WC container overhangs inward. Also depends. For example, FIGS. 5 and 6 of Patent Document 1 show that the container shape projects inward at the upper edge even though the typical cleaning edge is eliminated.

Secondly, such an overhang shape forms an undercut portion that is disadvantageous in terms of manufacturing technology. On the other hand, it is advantageous in terms of manufacturing technology to eliminate the less overhang or the portion cut out below. However, this results in an increased risk of water spillage as described above.

In addition, the wash water flow introduced almost tangentially to the internal shape of the container is relatively good for the steep walls of the internal shape of the container with respect to the limited section downstream of the inflow opening due to its kinetic energy. It was found that it can be guided relatively well, especially to relatively prominent concave points such as both ends of the shape of the oval container connected by the vertical axis. However, it tends to fall gradually under the influence of gravity. When such a falling portion of the flow next hits a flow path having a smaller inclination as described in Patent Document 1, there is a possibility that a flow shape swinging upward may occur. In other words, such falling flow portions can be reflected upwards again. Especially in such a situation, there is a risk of spilling, especially if the upper edge of the inner shape of the container does not have a clearly cut-out portion (undercut).

In this regard, please note the following: That is, the flow path in the sense shown here should be understood as a band-shaped (passage-shaped) surface running on the inner wall of the WC container, and this surface is defined outward, that is, a concave edge. By (edge), it is defined by a transition to a wall that is more upward, and by an inward, i.e., by a transition to a wall that is guided further downward by a convex edge. Demarcated. In this case, the edge is determined by a particularly steep curve (curvature) in the vertical section, that is, mathematically by the extremum of curvature. In the above Patent Document 1 and the following examples, it will be described more specifically.

Such channels serve to guide or at least assist a particular stream of water. This water orbits (swirls) due to a nearly tangential inflow into the interior of the vessel, which is then held by centrifugal force on the inner wall of the vessel and at the same time pulled downward (more or less diagonally) by gravity, resulting in it. , The flow conduction characteristics are generated according to the difference in the shape of the inner wall of the container.

The tangential inflow direction of the wash water is determined in advance by the shape of the wash water inflow portion, that is, by the inflow opening for the wash water and the pipe portion for the wash water connected to the upstream thereof. Such a tangential shape of the washing water inflow portion has already been realized in various forms in the prior art, and is usually useful for the purpose of obtaining a swirling washing water flow in the WC container.

According to the present invention, in addition to the flow path known in Patent Document 1, a second flow path or an extension or extension portion of a known flow path is provided. This second or expanded flow path prevents the flow direction of at least a portion of the wash water from being excessively downward, and as a result, reduces or prevents the above-mentioned "upward swaying flow". With the goal. If part of the flow is "held" by this channel to a given height, the overall flow degradation at or downstream from that location will not be so significant (sudden). Alternatively, the water flow portion on or expanded on the second flow path and the water flow portion flowing above the second flow path may be merged with the water flow portion flowing further below.

Based on the above definitions of the vertical axis and the horizontal axis, the swirling motion of the flow in the container and the position of a predetermined feature portion of the internal shape of the container will be described using an azimuth. (In) from a specific position in the container towards the intersection of both axes, i.e., at an angle to the vertical axis. For example, the point of the container opening closest to the wall is on the vertical axis and is therefore at an azimuth angle of 0 ° or 180 °. In contrast, the lateral region is near 90 ° or 270 °.

According to the present invention, the wash water is directed through the inflow opening to the concave curved region (visible in plan view) of the inner wall of the WC vessel, which for this purpose the inflow opening is 80 °. It is located at an azimuth angle between 180 ° and 180 °. The inflow opening is preferably at an azimuth less than 170 °, 160 °, 150 °, or even less than 140 °, preferably at a minimum of 90 °. .. In this case, the wash water flows out in the direction of the larger azimuth. In other words, this inflow opening is preferably located within a quarter circle upstream of the particularly recessed bend in the vessel opening and directed towards this particularly recessed portion. The reason is that, especially in large (suddenly) concave bends, the centrifugal force has a stabilizing effect in combination with the predetermined remaining inclination of the internal shape of the vessel (visible in the vertical cross section), and the wash water flow. The first is to guide through this curved part relatively stably. In this case, it can be assumed that most of the internal shape of the container extends somewhat from bottom to top and there is a corresponding slope. As described above, in general, the shape of the lower cut portion (undercut) is exceptionally present in the upper part of the container edge (rim).

The above-mentioned region of the WC vessel, generally a particularly strongly concavely curved region, exists at a location (azimuth) of about 180 °, i.e., at the end of the vertical axis. In individual cases, for example, in a container shape with two strongly curved concave regions laterally from this position (eg, in the case of a quadrilateral base shape with rounded corners), this value is in azimuth. It can be a slightly different angle instead of 180 °, especially between 150 ° and 210 °, preferably between 160 ° and 200 °, or between 170 ° and 190 °. However, not all of these angular ranges need to be covered.

Now, when the wash water reaches the region where the curvature of the container opening is weak, the risk of an undesired large drop in water level or an undesired large drop in water level increases.

The water flow portion where the water level is lowered in this way can then meet the first flow path provided by the present invention or a part of the first flow path. This first channel or part of the first channel travels at least between 90 ° and 270 ° in azimuth and preferably connects to an inflow opening at the bottom, resulting in water coming out of it. Can be guided. The preferred lower bounds of the above angle range are 80 °, 70 °, 60 °, 50 °, 40 °, 30 °, and 20 °, and the preferred upper bounds are 280 °, 290 °, 300 °, 310 °, 320. °, 330 °, and 340 °.

In the present invention, in order to reduce (mitigate) the drop in the water level of a part of this water flow, a second flow path or a part of the second flow path is newly provided, but the outer concave edge portion and the inner convex portion are provided. It is similarly provided between the shape edge and the shape edge. The second flow path or a part of the second flow path is provided at a position higher than a part of the first flow path or the first flow path corresponding to or near this azimuth angle. In this case, the second flow path or the second part is provided at least between 310 ° and 340 ° in azimuth. The preferred lower bounds are 300 °, 290 °, 280 °, 270 °, and 260 °, and this second flow path preferably does not start at an angle smaller than 200 °. The preferred upper limit is 345 °, and this second flow path will not travel beyond 400 ° (ie, past 360 ° and further 40 °) unless it joins the first flow path.

That is, as described above, in the present invention, the flow path known in Patent Document 1 can be extended (extended), but in this case, a continuous flow path remains, or a second flow path is added to the known flow path. Can be added. The difference is, after all, the presence or absence of interruptions between the two channels or parts of the channels, especially at an azimuth angle of 0 °, which will be described in more detail below. .. In the following, the second flow path will be described, but this can be understood as a part of the second flow path in the same integrated flow path when there is no interruption. The same applies to the first flow path, that is, the first portion of the above-mentioned uninterrupted flow path, and the flow path known in Patent Document 1 (which does not have the above-mentioned second flow path). apply.

Therefore, this second channel does not specifically orbit completely (rather than circumferentially), but covers only a limited area, i.e., experience shows, a stream of water flowing along the inner wall of the vessel. Covers areas where the risk of water level drop is particularly high. This is especially the case for the "fourth quadrant" (starting at 0 ° and counting at larger azimuths). As this example shows, the second flow path assists the wash water flow at least partially, thereby preventing the above-mentioned "reflection" mechanism in the first flow path from appearing excessively.

The discussion so far has been irrelevant whether the azimuth value 0 ° starts from the front or the back, and they relate to the normal sitting position of the WC user, therefore, " The "rear part" corresponds to the part (horizontally) close to the buttock in the internal shape of the container. Also, the discussion so far is irrelevant whether the swirling direction of the wash water flow in the WC container is counterclockwise or clockwise, that is, does the azimuth increase clockwise when viewed in plan view? It has nothing to do with whether it grows counterclockwise. In a more general and preferred case, the clockwise turning direction when viewed from above is the clockwise direction. Further, it is preferable that the azimuth is counted (counted) from the rear. Therefore, in this preferred case, the wash water flow exiting the inflow opening is directed forward towards the concave bend of the internal shape of the WC vessel (backward if the zero ° azimuth is defined forward). .. Both are possible, but the above modifications are preferred, especially in connection with the suction pipe outlet, which is generally located towards the rear.

In particular, by the second flow path according to the present invention, that is, within a predetermined range, by the so-called second shoulder or extended shoulder of the internal shape of the container, below the internal shape of the container at the upper edge of the container. Partial spills from the wash water container can be prevented even if there are fewer or no cutouts. Here, the inflow opening for washing water requires a portion cut off below, and in relation to this, the internal shape of the so-called "no cut-out portion below (undercutless)" container. However, it should be noted that, of course, there is a cut-out part at the bottom of the inflow opening. The location is the area slightly below the upper edge of the internal shape of the container, i.e., the area where the cleaning edge is located in a typical WC container.

Basically, it is an object of the present invention to obtain a form that is as simple as possible, easy to clean (and therefore smooth), and technically advantageous in manufacturing technology (the easiest form to manufacture). Therefore, the internal shape of the container without the portion cut off below in the above sense is preferable.

In the same sense, it is preferable to limit to the above one or two channels, that is, it is preferable that there are no more channels. Although there is no cut-out portion underneath for these channels, which is not preferable anyway, the channels make the shape a little more complicated and do not make the clever construction of the wash water flow easier. However, it is due to an unnecessarily large and different flow path from the inventor's point of view. Of course, especially the first channel can have a considerable spread with respect to the azimuth, but that does not change that it is a continuously integrated channel.

The plurality of channels described with respect to the present invention are intended to guide the main part of the wash water flow. This is more pronounced in the first flow path than in the second flow path. This is because, in the second flow path, only a part of the water flow, that is, a part of the water flow generally flowing along a part above the inner wall of the container is included in the second flow path. Unlike many structures in the prior art, the two channels are both relatively defined in width, which is a dimension along the inner wall of the WC vessel and is the channel. It can be understood that it is perpendicular to the longitudinal extension of the surface, that is, it usually faces downward with respect to the local orientation of its surface. The preferred minimum width at the widest location is 12 cm for the first channel and 0.8 cm for the second channel, with the first channel being more preferred in ascending order of 13 cm, 14 cm, 15 cm. The second flow path is more suitable in ascending order of 0.9 cm, 1 cm, and 1.1 cm.

As mentioned above, the second flow path has less of a role of guiding or assisting the swirling flow toward the downstream than the role of preventing a part of the water flow from excessively lowering the water level. In that regard, the second flow path can preferably extend approximately horizontally (in its longitudinal direction). In this case, specifically, the center line between the convex edge portion and the concave edge portion described above (each based on the extremum of curvature) can be used as a reference, and the angle of this center line can be set. , It is preferably 15 ° or less, more preferably 13 °, 11 °, 9 °, 7 ° or less with respect to the horizontal direction along the flow path. Preferably, the flow path is slightly downhill along the flow direction, i.e., slightly downhill with azimuth.

The first flow path substantially corresponds to the description of the cited patent document 1 of the same right holder, and accordingly, as the azimuth increases, it advances sharply on the one hand and swivels along the internal shape of the container on the other hand. Then, it assists the washing water flow that swirls downward.

Therefore, a container with an asymmetric internal shape is provided, which corresponds to a spiral line by positioning one side of the first flow path lower (deeper) than the other side of the container. Defines or produces a downward movement through the inner shape. Therefore, the very good surface cleaning properties of the swirling flow in the vessel are combined with the relatively significant water force (momentum) as it enters the suction tube. As a result, for example, the kinetic energy of the wash water generated as a result of the height of the head from the wash water tank can be utilized twice. In addition, the structure of the internal shape of the vessel prevents some of the turbulence caused by the downward flow of water, independent of the internal shape of the vessel, according to the downward trend of the water flow due to gravity. Such turbulence reduces the kinetic energy of the wash water. For similar reasons, as is known in the prior art, the swirling movement of wash water in a container is more effective in terms of surface cleaning compared to conventional solutions with typical cleaning edges. In this case, the conventional solution reduces most of the kinetic energy of the wash water sent from the wash water source.

The major tangential velocity components of the wash water exiting the container through the inflow opening are relative to the projection of the main wash channel onto the horizontal plane, as is known in the prior art. Therefore, the wash water does not flow out of the inflow opening in the direction of the water level in the suction pipe, but rather at an angle to it, in which case the exact angle in the general sense does not matter and the inflow opening does not matter. And after that it may depend on the individual geometry of the flow path. In particular, the velocity of the wash water coming out of the inflow opening does not have to be exactly horizontal, but is preferably substantially horizontal.

The WC according to the present invention is carried out particularly by using a pressurized water pipe, in other words, by using a method of providing various washing water so as to supply the washing water at a predetermined washing water pressure without a washing water tank. be able to. However, a combination of a wash water tank and a WC is preferred. This is because the present invention makes it possible to utilize the limited potential energy of the wash water in the wash water tank in a particularly efficient manner. This is especially true for concealed wash water tanks in the mounting wall behind the WC.

In particular, according to the technical idea of the present invention, a relatively small amount of washing water may be sufficient, which is economically and environmentally advantageous. Preferably, the maximum amount of wash water is less than 6 liters, preferably less than 5.5 liters, and particularly preferably less than 5 liters.

The cleaning water flow according to the present invention enables good water immersion (wetting) and cleaning action on the dirty surface of the internal shape of the container by the swirling falling flow as described above. Therefore, the conventional cleaning edge compared to the shower at the beginning can be eliminated. This not only facilitates the manufacture of this WC container, but also facilitates cleaning. This is because typical cleaning edges are particularly prone to fouling, calcific material deposits, and very difficult to access the bottom side. In other words, the container according to the invention allows for a smooth transition from the actual inner surface of the vessel towards the upper edge of the vessel, i.e., a smooth transition of the upward region of the container, especially below the WC toilet seat (seat). To enable.

In one embodiment of the invention (preferably the only) inflow opening is at a relatively high position, particularly above 5 cm, particularly preferably in ascending order from 5.5 cm, 6 cm, 6.5 cm. It is in a high position. The high position of the inflow opening allows a large cross section to favor the flow, both in terms of flow guidance (configuration) and its aesthetics, without excessively damaging the internal shape of the vessel by the inflow opening. ..

Generally, it is preferable that the cross-sectional area of the flow of the washing water supply unit is relatively large. In particular, in one embodiment of the invention, the attachment along the length of the wash water supply inside the WC, i.e., the inflow opening (including the inflow opening) and the outside of the WC itself, especially behind it. The cross-sectional area of this flow between the transition to the pipe (duct) in the wall is at least 8 cm ² or more, preferably 9 cm ² or more, more preferably about 10 cm ² or more, still more preferably 11 cm ^2. The above can be done. This is especially true for inflow openings. This makes it possible to particularly effectively utilize the kinetic energy of the wash water based on the head (inclination) or the pressurizing line.

More preferably, the second flow path keeps a predetermined distance from the inflow opening at a small azimuth at the start, specifically, preferably at least 60 ° azimuth, more preferably 80 °. Keep at 100 °, 120 °, 130 °. This relates to the case where the first and second channels are not combined in an integrated manner and the azimuth increases in the direction of the channels.

Each of the two channels forms a local reduction in slope rather than as a predominant slope in the internal shape of the vessel. Therefore, according to the preferred embodiment of the invention, they should not be located at the rear of the container internal shape. In any case, it is preferable to assume the specification from the azimuth angle of 0 ° at this position, in other words, to assume the washing water flow forward from the inflow opening. At the rear, it is clear that an inner wall that is as smooth and steep as possible at the center is preferred, given that it is easy to get dirty, and from the inventor's point of view, this embodiment thus limits the flow path. Therefore, it is justified to prevent the flow path from flowing over this rear central part. See Examples for illustration. Therefore, in this case, the first and second channels are separated from each other.

Furthermore, it was found that the second flow path needs to travel below the relatively steeply sloping portion of the internal shape of the container. Therefore, in this portion above the second flow path, an inclination angle (gradient) of at least 70 ° or even 75 ° with respect to the horizontal direction is preferable, that is, the azimuth angle is between 310 ° and 340 °. And it is preferable to extend over the entire longitudinal direction of the second flow path. This description of the length portion of the second flow path or its overall length also applies to the entire internal shape of the container above it, i.e., forming an upward transition of the WC body. It also applies to the upper edge or even the rounded part.

Further, a relatively significant steep slope in the above-mentioned posterior central region of the internal shape of the WC vessel is preferred, i.e., at least down to the water level in the suction pipe and above to the above-mentioned transition to the top of the vessel. A relatively noticeable steep slope up to the region is preferred. Again, the above angle values are taken into account.
For example, 0 ° of azimuth corresponds to the rear of the flush toilet user's sitting position, that is, near the butt, in which case the internal shape of the flush toilet container (1) corresponds to 0 ° of azimuth. It has an inclination angle of at least 70 ° with respect to the horizontal direction from the water level (8) on the upper surface of the suction pipe to the upper transition portion to the upper part of the container.

Finally, the steep slope described above, i.e., the same angular value, is particularly preferred on the opposite side, i.e., in the anterior central portion, preferably located there (in other words, downward from the convex edge) first. It is preferably between the bottom of the flow path and the water level in the suction pipe.
For example, 0 ° of azimuth corresponds to the rear of the flush toilet user's sitting position, i.e. near the buttocks, in this case at the opposite position, i.e. 180 ° of azimuth, the container. The internal shape of (1) is inclined at least 70 ° with respect to the horizontal direction from the concave edge portion defining the first flow path (5) to the water level (8) on the upper surface of the suction pipe below. Has horns.

Particularly preferably, the above description of the height portion of the tilt angle also applies to the overall internal shape of the container.

These sloping walls aid in a good cleaning effect and a sufficient downward trend of water flow. Therefore, this water flow flows into the suction pipe with a clear downward tendency, and the suction pipe can be washed well.

Further, the second flow path or a part of the second flow path preferably exists at a relatively high position in the above-mentioned angle range of 310 ° to 340 °, that is, in particular, the first flow path. It is preferable that the azimuth extends above (a part of the first flow path) at an azimuth angle larger than 270 ° and the azimuth angle extends within a range of 310 ° or more. In this case, these two flow paths (parts of the flow path) are arranged one above the other (one is on the other) so as to be separated from each other.

In that case, the second flow path (or part of the second flow path) is preferably at least 3 cm higher than the first flow path (or part of the first flow path). More preferably, it is higher at 3.5 cm, 4.0 cm, 4.5 cm, and 5.0 cm in ascending order.

Separately, the second channel or part of the second channel is the lower edge (lower edge) of the inflow opening for wash water within the azimuth angle of 310 ° to 340 ° described above. ), That is, it is preferably in a relatively high position. Preferably, since this lower edge is at least about the same level as the first flow path, this inflow opening injects water into the first flow path.

The present invention is preferably realized in a WC container having a single inflow opening for wash water, at least in the upper region, i.e., above the first flow path. In the prior art, there is a modification having a plurality of inflow openings. This variant clearly complicates the WC body as a whole and is not really necessary for good cleaning properties. Further, this also applies to the rest of the container below the first flow path. That is, in this sense, it is preferable to omit the nozzle opening near the suction pipe, which is sometimes used in the prior art to improve the drainage performance. The reason is as described above, but in this case, the total water consumption is further limited.

Hereinafter, the present invention will be described in more detail with reference to Examples. Here, the individual features constitute the invention as well as other combinations relating to the invention, as described above, with respect to all categories of the invention, even if not explicitly stated.

It is a perspective view of the WC container according to the present invention as viewed from the front, the right side, and from above, and is a view to which a gray scale is applied in order to clarify the three-dimensional shape. (Example 1) It is a perspective view of the WC container according to the present invention as viewed from the front, the left side, and from above, and is a view to which a gray scale is applied in order to clarify the three-dimensional shape. (Example 1) It is a sectional view in the longitudinal direction of the side view of the right half of the WC container of FIG. 1 and FIG. (Example 1) With respect to the simplified embodiment, it is a side view of the cross section of the WC container of FIGS. 1 to 3 without grayscale, and is shown toward the rear. (Example 2) It is a side view of the embodiment of FIG. 4, and is shown side by side at the same height as the figure corresponding to FIG. 3, and is not grayscaled. (Example 2) 4 is a plan view of the embodiments of FIGS. 4 and 5, with an explanation of the azimuth angle used for understanding the first embodiment. (Example 2)

With reference to FIGS. 1-6, the present invention is exemplified with respect to examples of two WC containers or container equipment. That is, in FIGS. 1 to 3, the first embodiment is configured to incorporate the shower unit of the shower WC, but the corresponding recesses (recesses) and openings (perforated portions) are shown in FIGS. It is omitted in the second embodiment shown in FIGS. 4 to 6. For the present invention, these differences are not particularly important, but show that the present invention can be combined with the shower WC in a very advantageous manner.

1 and 2 show a perspective view of the WC container (flush toilet container) 1 of the first embodiment. The WC container 1 has a normal container opening 2, an opening 3 on the back side (that is, the upper right side in FIG. 1 and the upper left side in FIG. 2) for incorporating a shower unit (not shown), and a container opening. The upper edge of the WC container at the rear of the container edge around the portion 2 has a recess (recess) 4 for passing a shower arm (not shown) of the shower unit. Hereinafter, the internal shape of the WC container 1 that can be visually recognized through the container opening 2 will be described.

As described in the WC container known from Patent Document 1 cited above, a substantially spiral first flow path 5 is provided in the WC container. In this case, the flow path 5 starts at the rear, for example, slightly offset to the right at an azimuth angle of 10 °, proceeds in a continuous descending (inclined) shape, becomes widest at an azimuth angle of 180 °, and has an azimuth angle. Almost all around to about 350 °, i.e., return to the rear again, but slightly offset to the left. Its function is described in the cited prior art and is described herein above, so detailed description is omitted herein.

However, unlike the cited Patent Document 1, here the inflow opening 6 for wash water is directed backwards (slightly offset to the right) as is done in this prior art. Rather than being oriented laterally at an azimuth of about 100 °, it is directed forward, i.e., toward a larger azimuth. Therefore, the wash water is poured into the first flow path, but not at the beginning (10 °). Please refer to FIG. 6 for the azimuth angle referred to here.

Further, in addition to the cited prior art, as clearly shown in FIG. 1, there is a second flow path 7 in the rear left corner, above the first flow path 5, and another on the inner wall of the container. It is provided as a shoulder and extends a predetermined length. This second flow path 7 is strictly defined as an inner wall region between the concave edge (upper and outer) and the convex edge (lower and inner). The second flow path 7 extends between about 250 ° and about 350 ° in azimuth. The second flow path 7 is also configured with a slight downward slope, approximately about (with respect to the undrawn centerline between the convex and concave edges) in the horizontal direction. It has a tilt angle of 5 °. Its widest point is about 1.2 cm wide, but its slope is significantly greater than that of the first flow path 5, i.e. it has an angle of about 48 ° with respect to the horizontal at its flattest point. On the other hand, the first flow path 5 is tilted only about 11 ° with respect to the horizontal at a maximum width of 16 cm, for example, at 180 °. The width referred to here refers to the distance between the above-mentioned both edges (the most convex line and the most concave line), that is, the straight line distance between the two edges along the steepest downward slope direction. That is, it refers to the shortest distance.

However, the inner wall of the container above and below the second flow path 7 is very steep with an inclination of about 80 ° with respect to the horizontal direction, especially even when the azimuth angle is 0 °. In particular, as shown in FIGS. 3 and 4, the container wall becomes steeper toward the front from there, and the inclination becomes about 89 ° at an azimuth angle of 180 °. That is, the portion (undercut) cut off below is strictly prevented.

Thus, as shown in these figures, the inside of the container as a whole is not provided with a portion cut off below, especially at the upper edge portion (except for the inflow opening 6, of course).

The distance between the two flow paths 5 and the flow path 7 is about 6 cm in this embodiment. This is measured in the same manner as the flow path width, that is, between the convex edge portion of the upper flow path 7 and the concave edge portion of the lower flow path 5, in a direction directly following the inclination thereof. Therefore, the second flow path 7 is located at a position considerably higher than that of the first flow path 5.

As can be seen from these figures, the water flow exiting the inflow opening 6 travels mostly along the steeply sloping inner wall of the vessel above the first flow path 5 due to centrifugal force, and in this shape (vertical plan view). (In) through the inner wall of the concave container to the other side, the left side. Experience has shown that this left water stream gradually downwards due to gravity, especially at small azimuths, i.e. about 10 ° to 90 °, hitting part of the first channel 5, but with large azimuths. At an angle, about 300 ° to 350 °, it also hits the opposite portion of the first flow path 5. This results in a reflexive flow behavior, which tends to cause a portion of the wash water to suddenly turn upwards, making it easier for the wash water to spill out of the container 1.

Due to the presence of the second flow path 7 in the azimuth range shown herein, especially between 310 ° and 340 °, this downward trend is counteracted by a given obstacle and the above behavior is mitigated. Or it is prevented. As a result, it is possible to realize the internal shape of the container without the lower cut portion, which is accompanied by the flow behavior of the washing water so that there is no danger of spilling. More preferably, the shape of the first flow path 5 is magnified with respect to the azimuth and flatter with respect to the inclination in the vertical cross section (passing through the sealing water level in the drain pipe as shown in FIG. 3). As a result, the swirling characteristics of the washing water flow can be promoted as much as possible, and the optimum inundation of the inner wall of the container can be achieved with the smallest possible amount of washing water.

Referring to FIG. 4, a cross-sectional view of the container and a side view of the rear region of the internal shape of the container are shown. This cross section passes through the sealing water level indicated by reference numeral 8 at the bottom of the WC container. The second flow path 7 can be visually recognized on the left side portion of the container internal shape, and the first flow path 5 can be visually recognized on the right side portion. Both of these channels are identified by a CAD program boundary, which distinguishes the surface by a straight cross-sectional contour in a vertical section (through the sealing water level 8), eg, the channel 5. And the steeply sloping inner wall of the vessel above the flow path 7 is distinguished from the curved surface. In that regard, the two channels 5 and 7 actually have a linear central band (strip) to which the curved band is connected at the top and bottom. ..

FIG. 6 shows a plan view of the second embodiment shown in FIGS. 4 and 5, to which the azimuth distribution and some numerical values are attached. In particular, it can be seen that 0 ° corresponds to the rear central portion of the internal shape of the container and 180 ° corresponds to the front central portion. As described in the claims, the azimuth range of the inflow opening for wash water can be defined between 80 ° and 180 °. The forward azimuth range can also be defined between 150 ° and 210 °, in which case there is a concave bend (not necessarily over the entire angle range), as described in the claims. (Not necessary), the inflowing wash water is directed at this bend. Further, the minimum range of the flow path can be defined between 90 ° and 270 °. In addition, there is a minimum range (between 310 ° and 340 °) of the second channel or part of the second channel, which according to the claims is between 230 ° and 90 °. Does not extend beyond the angular range of, is slightly offset to the left from the line drawn at 300 ° in the clockwise direction, and is offset near the line at 330 ° in the same direction.

Further, FIG. 6 shows a plan view of the container internal shape described with reference to the previous figure. Here, reference numerals are not added so as not to cause excessive display.

1 WC container (flush toilet container)
2 Container opening 3 Opening 4 Recess (concave)
5 flow path (first flow path)
6 Inflow opening for wash water 7 Flow path (second flow path)
8 Sealed water level

Claims (20)

A flush toilet having an elliptical or circular container opening (2) and an inflow opening (6) for washing water.
In the plan view, in the case of the elliptical container opening (2), in the long axis direction of the elliptical container opening (2) corresponding to the longest inner dimension of the internal shape of the container opening (2). The vertical axis along the vertical axis is defined from the front to the rear with respect to the general sitting position of the user of the water wash urinal, and similarly in the case of the circular container opening (2), the vertical axis is from the front to the rear. To be determined,
A center point is determined by the vertical axis and a horizontal axis extending at a right angle to the vertical axis, which is a perpendicular bisector with respect to the vertical axis, and based on the vertical axis and the center point. When the azimuth angle is determined and a connecting line is drawn to the intersection of the vertical axis and the horizontal axis at an arbitrary position of the container in the plan view, the angle between the line and the vertical axis is determined. defined as the azimuth angle clockwise direction, this time, an angle of 0 ° is intended to correspond to the prior SL backwards,
The inflow opening (6) for the washing water is directed in the direction of a larger azimuth, and in the plan view, the inflow direction of the washing water is tangential to the shape of the container opening (2). Stipulated in
After the washing water flows into the flush toilet container (1) through the inflow opening (6), it flows on the inner wall of the flush toilet container (1), and in the plan view, the center. With reference to the point, the concave curved portion of the inner wall is hit between 150 ° and 210 ° in the azimuth angle.
The flush toilet container (1) has a flow path for washing water (5), the flow path (5), in the interior shape of the flush toilet container (1), vertical section odor Te, from the center point Defined between the far outer concave edge and the inner convex edge near the center point, the flow path (5) connects to the inflow opening at the bottom and from at least 90 ° in the azimuth. Extend between 270 °,
The inflow opening (6) is provided between 80 ° and 180 ° in the azimuth angle, and the azimuth angle at which the wash water collides with the concave curved portion after inflow is the azimuth of the inflow opening (6). Larger than the corner,
A second flow path (7) is provided between 230 ° at the azimuth and 90 ° past 360 °, without exceeding it, at least between 310 ° and 340 ° at the azimuth. The second flow path (7) is provided, and the second flow path (7) is similarly formed in the internal shape of the water wash basin container (1) with respect to the center point in the vertical cross section. The second flow path (7) is defined between the outer concave edge portion and the inner convex edge portion, and the second flow path (7) is compared with other parts of the first flow path (5). in the same angle with the azimuth angle, at a higher position, or compared to the closest part of said first flow path (5), at a higher position,
A flush toilet configured to. A flush toilet having an elliptical or circular container opening (2) and an inflow opening (6) for washing water.
In the plan view, in the case of the elliptical container opening (2), in the long axis direction of the elliptical container opening (2) corresponding to the longest inner dimension of the internal shape of the container opening (2). The vertical axis along the vertical axis is defined from the front to the rear with respect to the general sitting position of the user of the water wash urinal, and similarly in the case of the circular container opening (2), the vertical axis is from the front to the rear. To be determined,
A center point is determined by the vertical axis and a horizontal axis extending at a right angle to the vertical axis, which is a perpendicular bisector with respect to the vertical axis, and based on the vertical axis and the center point. When the azimuth angle is determined and a connecting line is drawn to the intersection of the vertical axis and the horizontal axis at an arbitrary position of the container in the plan view, the angle between the line and the vertical axis is determined. It is determined as the azimuth angle in the clockwise direction, and at this time, the angle of 0 ° is assumed to correspond to the front.
The inflow opening (6) for the washing water is directed in the direction of a larger azimuth, and in the plan view, the inflow direction of the washing water is tangential to the shape of the container opening (2). Stipulated in
After the washing water flows into the flush toilet container (1) through the inflow opening (6), it flows on the inner wall of the flush toilet container (1), and in the plan view, the center. With reference to the point, it hits the concave curved portion of the inner wall between 150 ° and 210 ° in the azimuth angle.
The flush toilet container (1) has a flow path (5) for washing water, and the flow path (5) is far from the center point in the vertical cross section in the internal shape of the flush toilet container (1). Defined between the outer concave edge and the inner convex edge near the center point, the flow path (5) connects to the inflow opening at the bottom and is at least 90 ° to 270 at the azimuth. Extend between °
The inflow opening (6) is provided between 80 ° and 180 ° in the azimuth angle, and the azimuth angle at which the wash water collides with the concave curved portion after inflow is the azimuth of the inflow opening (6). Larger than the corner,
A second flow path (7) is provided between 230 ° at the azimuth and 90 ° past 360 °, without exceeding it, at least between 310 ° and 340 ° at the azimuth. The second flow path (7) is provided, and the second flow path (7) is similarly formed in the internal shape of the water wash basin container (1) with respect to the center point in the vertical cross section. The second flow path (7) is defined between the outer concave edge portion and the inner convex edge portion, and the second flow path (7) is compared with other parts of the first flow path (5). At the same angle with the azimuth, it is at a higher position or at a higher position than the nearest part of the first flow path (5).
A flush toilet configured to. A flush toilet having an elliptical or circular container opening (2) and an inflow opening (6) for washing water.
In the plan view, in the case of the elliptical container opening (2), in the long axis direction of the elliptical container opening (2) corresponding to the longest inner dimension of the internal shape of the container opening (2). The vertical axis along the vertical axis is defined from the front to the rear with respect to the general sitting position of the user of the water wash urinal, and similarly in the case of the circular container opening (2), the vertical axis is from the front to the rear. To be determined,
A center point is determined by the vertical axis and a horizontal axis extending at a right angle to the vertical axis, which is a perpendicular bisector with respect to the vertical axis, and based on the vertical axis and the center point. When the azimuth angle is determined and a connecting line is drawn to the intersection of the vertical axis and the horizontal axis at an arbitrary position of the container in the plan view, the angle between the line and the vertical axis is determined. It is determined as the azimuth angle in the counterclockwise direction, and at this time, the angle of 0 ° is assumed to correspond to the rearward direction.
The inflow opening (6) for the washing water is directed in the direction of a larger azimuth, and in the plan view, the inflow direction of the washing water is tangential to the shape of the container opening (2). Stipulated in
After the washing water flows into the flush toilet container (1) through the inflow opening (6), it flows on the inner wall of the flush toilet container (1), and in the plan view, the center. With reference to the point, it hits the concave curved portion of the inner wall between 150 ° and 210 ° in the azimuth angle.
The flush toilet container (1) has a flow path (5) for washing water, and the flow path (5) is far from the center point in the vertical cross section in the internal shape of the flush toilet container (1). Defined between the outer concave edge and the inner convex edge near the center point, the flow path (5) connects to the inflow opening at the bottom and is at least 90 ° to 270 at the azimuth. Extend between °
The inflow opening (6) is provided between 80 ° and 180 ° in the azimuth angle, and the azimuth angle at which the wash water collides with the concave curved portion after inflow is the azimuth of the inflow opening (6). Larger than the corner,
A second flow path (7) is provided between 230 ° at the azimuth and 90 ° past 360 °, without exceeding it, at least between 310 ° and 340 ° at the azimuth. The second flow path (7) is provided, and the second flow path (7) is similarly formed in the internal shape of the water wash basin container (1) with respect to the center point in the vertical cross section. The second flow path (7) is defined between the outer concave edge portion and the inner convex edge portion, and the second flow path (7) is compared with other parts of the first flow path (5). At the same angle with the azimuth, it is at a higher position or at a higher position than the nearest part of the first flow path (5).
A flush toilet configured to. A flush toilet having an elliptical or circular container opening (2) and an inflow opening (6) for washing water.
In the plan view, in the case of the elliptical container opening (2), in the long axis direction of the elliptical container opening (2) corresponding to the longest inner dimension of the internal shape of the container opening (2). The vertical axis along the vertical axis is defined from the front to the rear with respect to the general sitting position of the user of the water wash urinal, and similarly in the case of the circular container opening (2), the vertical axis is from the front to the rear. To be determined,
A center point is determined by the vertical axis and a horizontal axis extending at a right angle to the vertical axis, which is a perpendicular bisector with respect to the vertical axis, and based on the vertical axis and the center point. When the azimuth angle is determined and a connecting line is drawn to the intersection of the vertical axis and the horizontal axis at an arbitrary position of the container in the plan view, the angle between the line and the vertical axis is determined. It is determined as the azimuth angle in the counterclockwise direction, and at this time, the angle of 0 ° is assumed to correspond to the front.
The inflow opening (6) for the washing water is directed in the direction of a larger azimuth, and in the plan view, the inflow direction of the washing water is tangential to the shape of the container opening (2). Stipulated in
After the washing water flows into the flush toilet container (1) through the inflow opening (6), it flows on the inner wall of the flush toilet container (1), and in the plan view, the center. With reference to the point, it hits the concave curved portion of the inner wall between 150 ° and 210 ° in the azimuth angle.
The flush toilet container (1) has a flow path (5) for washing water, and the flow path (5) is far from the center point in the vertical cross section in the internal shape of the flush toilet container (1). Defined between the outer concave edge and the inner convex edge near the center point, the flow path (5) connects to the inflow opening in the bottom region and from at least 90 ° in the azimuth. Extend between 270 °,
The inflow opening (6) is provided between 80 ° and 180 ° in the azimuth angle, and the azimuth angle at which the wash water collides with the concave curved portion after inflow is the azimuth of the inflow opening (6). Larger than the corner,
A second flow path (7) is provided between 230 ° at the azimuth and 90 ° past 360 °, without exceeding it, at least between 310 ° and 340 ° at the azimuth. The second flow path (7) is provided, and the second flow path (7) is similarly formed in the internal shape of the water wash basin container (1) with respect to the center point in the vertical cross section. The second flow path (7) is defined between the outer concave edge portion and the inner convex edge portion, and the second flow path (7) is compared with other parts of the first flow path (5). At the same angle with the azimuth, it is at a higher position or at a higher position than the nearest part of the first flow path (5).
A flush toilet configured to. The upper edge of the flush toilet container (1) does not form form an undercut on the inside, flush toilet bowl according to any one of claims 1 4. The flush toilet according to any one of claims 1 to 5, which has the first flow path (5) and the second flow path (7 ) as a main structure for guiding the washing water. Whether the width of the first flow path (5) is at least 12 cm at its widest point between 90 ° and 270 ° in the azimuth angle.
Whether the width of the second flow path (7) is at least 0.8 cm at its widest point between 310 ° and 340 ° in the azimuth angle.
The flush toilet according to any one of claims 1 to 6 , which is one or both of them. The second flow path (7), advancing free to deflect a maximum at 15 ° from the horizontal, flush toilet bowl according to any one of claims 1 to 7. The flush toilet according to claim 8, wherein the second flow path (7) advances so that the inclination increases somewhat as the azimuth increases. The first flow path (5) inclines between 90 ° and 270 ° at the azimuth, thereby causing the wash water to move downward through the inflow opening (6). Auxiliary, in this case, between 90 ° and 270 ° in the azimuth, the portion of the first flow path (5) closest to the inflow opening (6) is 310 ° to 340 in the azimuth. The water washing according to any one of claims 1 to 9 , which is located at a position higher than the portion of the first flow path (5) closest to the second flow path (7) existing between °. Toilet bowl. The second flow path passing at least between 310 ° and 340 ° at the azimuth angle and the first flow path passing at least between 90 ° and 270 ° at the azimuth angle exceed 0 °. flow coupling with each other to form one flow path, water washing toilet according to any one of claims 1 10. The 0 ° azimuth corresponds to the rear part of the user 's sitting position of the flush toilet, that is, near the tail, and the 0 ° position corresponds to the flow path (5) and the flow path (7). ) Does not exist, in which case the first flow path (5) between 90 ° and 270 ° at the azimuth angle and the second flow path between 310 ° and 340 ° at the azimuth angle. The flush toilet according to claim 1 or 3 , wherein the (7) is two separate flow paths (5) and a flow path (7). Claim 1 in which the internal shape of the flush toilet container has an inclination angle of at least 70 ° with respect to the horizontal direction above the second flow path (7) between 310 ° and 340 ° in azimuth. The flush toilet according to any one of 12 to 12. 0 ° of the azimuth corresponds to the rear part with respect to the sitting position of the user of the flush toilet, that is, near the butt, and in this case, the inside of the flush toilet container (1) at 0 ° of the azimuth. shape, wherein the upper surface level of the suction tube which wash water flows (8), between the to the upper transition to the upper part of the vessel, have a tilt angle of at least 70 ° to the horizontal, the siphoning The flush toilet according to claim 1 or 3 , wherein the tube is a lower part of the flush toilet. 0 ° of the azimuth corresponds to the rear of the flush toilet user's sitting position, i.e. near the butt, in this case at the opposite position, i.e. 180 ° of the azimuth. The internal shape of the container (1) is at least 70 in the horizontal direction from the concave edge portion defining the first flow path (5) to the water level (8) on the upper surface of the suction pipe below. have a tilt angle of °, the suction tube is at the bottom of the flush toilet bowl as the cleaning water flows, flush toilet bowl according to claim 1 or 3. The first flow path (5) extends continuously toward a larger azimuth between 90 ° and 270 ° at the azimuth and between 310 ° and 340 ° at the azimuth. Claimed that the first flow path (5) travels at least partially at the same azimuth angle as the second flow path (7), and the first flow path (5) separates from the second flow path (7) and travels below the second flow path (7). The water-washing toilet according to any one of 1 to 15. Claimed that the second flow path (7) is located generally higher than the lower edge of the inflow opening (6) for wash water between 310 ° and 340 ° in the azimuth angle. The flush toilet according to any one of 1 to 16. The flush toilet according to any one of claims 1 to 17 and the flush toilet.
And the flush water tank,
Flush toilet equipment equipped with. The flush toilet facility according to claim 18, wherein the flush water tank is a concealed tank and the amount of flush water is less than 6 liters. The method of using the flush toilet according to any one of claims 1 to 17 or the flush toilet equipment according to claim 18 or 19.
The wash water discharged from the inflow opening (6) makes a swirling motion along the first flow path (5), and a part of the wash water flows between 310 ° and 340 °. How to use so that it is guided above the road (7).

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