巴西专利BR102012021115B1 toilet to flush waste using flushing water

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专利摘要:
TOILET TO DISCHARGE REJECTED USING DISCHARGE WATER. A toilet is described for flushing waste using flushing water supplied by a flushing water supply source. The toilet comprises a portion of the basin-type reservoir including a tailings receiving surface in the form of a basin-type reservoir, a portion of the rim formed in its portion of the upper edge so that its internal circumferential surface is essentially vertical, and a platform portion formed between the border portion and the tailings receiving surface; a water splash portion for squirting discharge water onto the platform portion of the basin-like reservoir portion to form a swirl flow; and a water duct to supply the discharge water in the nozzle portion. The splash portion of water is formed in the front region of the basin-like reservoir portion, and a portion of the inner circumferential surface of the rim portion is made in an inward-facing pendant shape; and the splash portion of water is covered by the pendant portion of the border portion in such a way that a user cannot (...).
公开号:BR102012021115B1
申请号:R102012021115-7
申请日:2012-08-22
公开日:2020-10-13
发明作者:Yu Yamasaki；Masaaki Inoue；Masahiro Nakamura
申请人:Toto Ltd；
IPC主号:

专利说明:

Technical Field
[0001] The present invention relates to a toilet and, in particular, a toilet for flushing tailings using flushing water supplied by a flushing water supply source. Fundamentals of the Invention
[0002] As shown in the unexamined Japanese patent publication 2005-98003 (patent document 1), a conventional toilet for flushing waste by washing the vessel with flushing water is known. In the conventional vessel, the internal circumference of a rim portion formed at the top edge of the bowl-like reservoir portion of the toilet is formed so as to have a vertical or enlarged shape, whereby flushing water is flushed in one direction horizontal by a water nozzle formed at the rear side of this edge portion in order to form a swirl flow, and it is squirted towards a discharge siphon by a jet nozzle located at the bottom and front end of the portion of the basin-type reservoir to generate a siphon effect, thereby discharging the tailings. Summary of the Invention Technical problem
[0003] In a conventional toilet bowl as shown in patent document 1, the inner circumference of the edge portion formed at the top edge of the basin-type reservoir portion is made in a vertical or enlarged form, and the entire interior of the reservoir basin-type can be easily seen from above, thus providing better cleaning capacity of the entire portion of the basin-type reservoir during jet cleaning or similar. On the other hand, when multiple nozzle holes formed at the rear of the rim portion are disposed, the problem arises that when the interior of the basin-type reservoir portion is viewed diagonally from the front and from above by a user, dirt tends to become extremely prominent because of the complexity of the shape, the ease with which it is dirty, and the difficulty of cleaning, thus reducing the sense of cleanliness perceived by the user and reducing the aesthetic appearance of the portion of the basin-type reservoir as a whole.
[0004] It is, therefore, an objective of the present invention to provide a toilet capable of improving the sense of cleanliness perceived by users and the aesthetic appearance of the portion of the basin-type reservoir as a whole. Solution of the problem
[0005] The purpose presented is achieved in accordance with the present invention by providing a toilet for flushing waste using flushing water supplied by a flushing water source, the toilet comprising a portion of the basin-type reservoir including a surface of receiving tailings in the shape of a basin-type reservoir, a portion of the rim formed in its portion of the upper edge so that its inner circumferential surface raises in an essentially vertical manner, and a portion of the platform formed between the portion of the border and the receiving surface tailings; a water discharge path to discharge the tailings, the path including an inlet that is connected to the base of the basin-like portion of the reservoir; a water splash portion for squirting discharge water onto the platform portion of the basin-like reservoir portion to form a swirl flow; and a water conduit to supply the discharge water in the nozzle portion; wherein the splash portion of water is formed in the front region of the portion of the basin-type reservoir, and a portion of the inner circumferential surface of the rim portion is made in an inwardly hanging shape; and the splash portion of water is covered by the pendant portion of the rim portion in such a way that a user cannot observe the splash portion of water when looking diagonally from the front and from above the portion of the basin-type reservoir.
[0006] In the present invention thus constituted, the water squirt portion that squirts discharge water into the platform portion of the basin-type reservoir portion and forms a swirl flow is formed in the front region of the basin-type reservoir portion, and is displaced from the rear region that easily soils the portion of the basin-type reservoir and, therefore, rejects, has difficulty adhering to the water splash portion and, due to the water splash portion being covered by the pending portion of the border portion, the user cannot perceive it when looking diagonally from the front and the portion of the basin-type reservoir and, thus, the user's sense of cleanliness perception and the aesthetic appearance of the portion of the basin-type reservoir as a whole are improved.
[0007] In the present invention, the water splash portion is preferably formed in the vicinity of the front end of the rim portion of the bowl-like reservoir portion, and the pendant portion of the rim portion is formed symmetrical left-right in the vicinity of the end front of the edge portion of the basin-type reservoir portion to cover the water splash portion.
[0008] In the present invention thus constituted, the water splash portion is formed in the vicinity of the front end of the border portion, and the pendant portion of the border portion covers the water splash portion and, therefore, a user cannot see the edge portion, and the user's perception of cleanliness and the aesthetic appearance of the basin-like reservoir portion as a whole can be improved. In addition, because the pending portion of the rim portion is formed symmetrical left-right in the vicinity of the rim portion of the bowl-like reservoir portion, the aesthetic appearance of the bowl-like reservoir portion as a whole can be improved.
[0009] In the present invention, the water squirt portion is preferably formed on the upper end side of the rim portion of the basin-like reservoir portion.
[00010] In the present invention thus constituted, the splash portion of water is formed on the side of the top edge of the edge portion of the basin-type reservoir portion and, therefore, for a user looking at the basin-type reservoir portion diagonally from the front and from the top, the water splash portion falls squarely at the blind angle of the pending portion of the border portion, making it more difficult for the user to see the water splash portion. The sense of cleanliness perceived by the user can be improved, as well as the aesthetic appearance of the portion of the basin-type reservoir as a whole.
[00011] In the present invention, the edge portion of the bowl-like reservoir portion is preferably formed symmetrical left-right in the region visible to the user diagonally from the front and from above the bowl-like reservoir portion.
[00012] In the present invention thus constituted, the water splash portion is hidden by the pendant portion of the border portion and, therefore, the border portion can be made symmetrical left-right across the entire region visible by a user diagonally from the front and above the portion of the basin-type reservoir. As a result, the present invention allows the aesthetic appearance of the general bowl-like portion of the reservoir to be improved.
[00013] In the present invention, most of the rear region of the rim portion of the basin-like reservoir portion preferably forms part of a true circle with a predetermined radius.
[00014] In the present invention thus constituted, most of the rear region of the border portion of the basin-type reservoir portion forms part of a true circle with a predetermined radius and, therefore, when a user looks diagonally from the front and from the top, the majority of the most prominent rear region of the rim portion of the basin-like reservoir portion forms part of a true circle of a predetermined radius, and therefore the aesthetic appearance of the general basin-like reservoir portion can be improved.
[00015] In the present invention, the water spout portion is preferably provided with a water spout hole formed in the vicinity of the front end of the rim portion of the basin-like reservoir portion; in the vicinity of the front end of the border portion, the inner surface of the border portion is made in a pendant shape from a vertical surface and a horizontal surface extending into the vertical surface; a planned space pointing forward in the vicinity of the front edge of the edge portion is formed on the platform portion by the vertical surface and horizontal surface and, in the planned space, the water splash hole of the water splash portion and the vertical surface of the edge portion are continuously formed so that they are level.
[00016] In the present invention thus constituted, the water spout portion is provided with a water spout hole formed in the vicinity of the front end of the rim portion of the basin-like reservoir portion; in the vicinity of the front end of the border portion, a planned space protruding forward is formed on the platform portion by a vertical surface and a horizontal surface extending into the vertical surface; and, in the planned space, the water squirt hole of the water squirt portion and the vertical surface of the border portion are continuously formed so that they are level and therefore the water squirt hole of the water squirt portion it is difficult to be seen by a user who looks diagonally from the front and the portion of the basin-type reservoir, so that the user's perception of cleanliness can be improved. The aesthetic appearance of the basin-like reservoir portion as a whole is also improved. Advantageous Effects of the Invention
[00017] According to the toilet of the present invention, the sense of cleanliness perceived by the user can be improved, and the aesthetic appearance of the portion of the basin-type reservoir as a whole can be improved. Brief Description of Drawings
[00018] Figure 1 is a schematic perspective view showing a toilet according to an embodiment of the present invention; Figure 2 is a side view in which the toilet seat and the lid of the toilet are omitted in a toilet according to an embodiment of the present invention; Figure 3 is a plan view showing the main toilet unit of a toilet according to an embodiment of the present invention; Figure 4 is a cross-sectional view along line IV-IV in Figure 3; Figure 5 is a cross-sectional view along the line V-V in Figure 3; Figure 6 is a cross-sectional view along line VI-VI in Figure 3; Figure 7 is a cross-sectional view along line VII-VII in Figure 3; Figure 8 is a perspective view showing the water line in a toilet according to an embodiment of the present invention; Figure 9 is an enlarged perspective view in which the water splash hole of the rim in the front region in the basin-like portion of a toilet according to an embodiment of the present invention is viewed diagonally from below looking from the rear side; Figure 10 is a partial enlarged plan view in which the front part of a toilet according to the embodiment of the present invention shown in Figure 3 is enlarged; Figure 11 is a partial enlarged plan view in which the water splash portion of the edge of a toilet according to the embodiment of the present invention shown in Figure 3 is enlarged; Figure 12 is a side view showing the main body of the toilet before an adhesion step on a toilet according to an embodiment of the present invention; Figure 13 is a front cross-sectional view showing the main body of the toilet before an adhesion step on a toilet according to an embodiment of the present invention; Figure 14 is a perspective view schematically explaining the first swirl trajectory of the first circulation and the second swirl trajectory of the second circulation in the nozzle water when an edge cleaning is implemented after the start of a jet cleaning. a toilet bowl according to an embodiment of the present invention; Figure 15 is a perspective view schematically explaining the state by which the swirling stream of water splashing from the rim into a toilet according to an embodiment of the present invention flows down into a concave portion; Figure 16 (a) is an example of the results of an analysis of the distribution of flows in the nozzle water from the edge and in the nozzle water of the jet when flushing into a vessel using a toilet in accordance with an embodiment of the present invention , and figure 16 (b) shows the results of an analysis of flow distribution for water from the nozzle and jet water when flushing into a vessel using a conventional toilet, as a comparative example in relation to analytical results shown in figure 16 (a); and Figure 17 (a) is an example of the results of an analysis of the flow distribution in the jet water and the appearance of the flow when flushing into a vessel using a toilet in accordance with an embodiment of the present invention; and figure 17 (b) shows the results of a flow distribution analysis for jet water and the appearance of the flow when flushing into a vessel using a conventional toilet, as a comparative example in relation to the analytical results shown in figure 17 (a). Description of Modalities
[00019] Referring to the accompanying drawings, a toilet according to an embodiment of the present invention will be described.
[00020] Figure 1 is a schematic perspective view showing the toilet seat in a toilet according to an embodiment of the present invention.
[00021] As shown in figure 1, the toilet 1 according to one embodiment of the present invention is what is known as a down-flush toilet in which the tailings flush by the flow created by the falling water in the portion of the basin-type reservoir; it is provided with a ceramic vessel main unit 2, a vessel lid 4 covering a vessel seat (not shown) arranged on the top surface of the vessel main unit 2, and a gravity feed reservoir tank 6 that serves as the source of flushing water, to store flushing water used to flush the vessel and to supply water to the vessel's main unit 2.
[00022] Note that, with regard to the source of discharge water that supplies discharge water to the main unit of vessel 2, there is no limitation as to a tank-type apparatus, such as the gravity-fed reservoir tank 6 shown in this modality; Discharge water can also be supplied by a main direct pressure water system using directly the main water supply pressure, or by a discharge valve, or by pump assisted pressure, etc.
[00023] Figure 2 is a side view in which the toilet seat and the lid of the toilet are omitted in a toilet according to an embodiment of the present invention; Figure 3 is a plan view showing a toilet according to an embodiment of the present invention.
[00024] As shown in figures 2 and 3, a portion of the basin-type reservoir 8 is formed in the upper front portion of the main unit of vessel 2. Also, a water conduit 10 for squirting discharge water supplied by the reservoir tank 6 in the portion of the basin-type reservoir 8 is formed in the upper rear portion of the main vessel unit 2.
[00025] Furthermore, a water discharge siphon pipe 12 that serves as a discharge path for discharging tailings into the basin-type reservoir portion 8 is formed at the bottom of the basin-type reservoir portion 8.
[00026] The basin-like reservoir portion 8 is provided with a tailing surface in the form of a basin-like reservoir 14, a rim portion 16 formed along the upper edge portion of the basin-like reservoir portion 8, and a platform portion 18 formed between this tailings receiving surface 14 and the rim portion 16.
[00027] The portion of the basin-type reservoir 8 is provided with a concave portion 20 formed in a region below the tailings receiving surface 14 and connected to the water drain siphon pipe 12; this concave portion 20 is provided with a lower surface 20a and a wall surface 20b connecting the lower surface 20a and the base edge portion 14a of the tailings receiving surface 14.
[00028] Furthermore, seen from the front side of the main unit of vessel 2 in relation to the center line Al (see figure 3) which equally divides the portion of the basin-type reservoir 8 in the left-right direction, a nozzle orifice from the water jet 22 is formed on the surface of the side wall 20b on the left side of the concave portion 20; this water jet nozzle orifice 22 is connected from the shared water conduit 10a to the water conduit 10, described in detail below, in the derived water jet conduit 10b, and the main flow of the discharge water squirted through the nozzle of the water jet 22 circulates in the concave portion 20. Thus, when discharge water is squirted through the nozzle of the water jet 22, it becomes difficult for the water accumulated in the concave portion 20 of the portion of the basin-type reservoir 8 to spread by the swirling flow f4 of the water jet nozzle, and floating tailings can accumulate approximately in the center of the water accumulated in the concave portion 20 and be discharged with confidence. In addition, water splashes produced by the whirlpool, downward flow and splash water collision from the nozzle flushed edge 26 described below can be more effectively eliminated when discharge water attempts to splash out of the concave portion 20 of the portion of the basin-type reservoir 8.
[00029] An inlet hole 12a in the aforementioned water drainage pipe 12 opens at the rear and rear of the concave portion 20 of the tailings receiving surface 14 of the bowl-like reservoir portion 8; an ascent path 12b extends behind this inlet 12a. A fall path 12c connects this climb path 12b; the lower end of this fall path 12c is connected to a drain pipe below the floor (not shown) via a drain socket 24.
[00030] Note that, in toilet 1 of the present modality, an example of a flush toilet on the floor is described in which the lower end of the drop path 12c in a water drain siphon 12 is connected to a flush under the floor (not shown), but the toilet is not limited to this shape, and can also be applied to a flush toilet above the floor on which the end of the fall path 12c is arranged on the side the rear wall of the toilet and is connected to a drain pipe above the floor.
[00031] Next, referring to figures 2 to 8, details of the water pipe 10 in toilet 1 are described.
[00032] Figures 4 to 7 are cross-sectional views respectively along lines IV-IV, V-V, VI-VI and VII-VII in figure 3; Figure 8 is a perspective view showing the general water pipe in a toilet according to an embodiment of the present invention.
[00033] As shown in figures 2 to 8, the water line 10 is provided with: a shared water line 10a extending from the inlet portion 10c connected to the discharge hole 6a in the reservoir tank 6 in the vicinity of the rear surface side from the basin-type reservoir portion 8, and a water jet conduit 10b and 10d edge water conduit respectively derived from the water conduit 10a in the vicinity of the rear surface side of the basin-type reservoir portion 8.
[00034] The water channel on the edge 10d derives from the shared water channel 10a in the vicinity of the rear surface of the basin-type reservoir portion 8, extending towards the front along the interior of the edge portion 16 positioned on the left side, seen from the front side of the main vessel unit 2 in relation to the centerline Al (see figure 3) which equally divides the portion of the basin-type reservoir 8 in the left-right direction, and extends upwards to a single nozzle edge 26 (described in detail below) arranged on the left side, seen from the front side of the main unit of vessel 2 in the front region F of the edge portion 16.
[00035] The water jet line 10b is derived from the shared nun water line 10a in the vicinity of the rear side of the basin-type reservoir portion 8, extending forward to circumscribe the outside of the left side wall surface. 20b of the concave portion 20 of the basin-type reservoir portion 8 seen from the front side of the main vessel unit 2 in relation to the center line Al (see figure 3) which equally divides the portion of the basin-type reservoir 8 in the left-right direction, then extending upward to the water jet nozzle 22 formed on the left side wall surface 20b of the concave portion 20. When the bowl-like reservoir portion 8 is divided equally in the front-rear and left-right directions, the nozzle orifice of the water jet 22 is arranged on the rear side in relation to the nozzle orifice of the rim 26 in the rim portion 16, and on the left side, when viewed from the front of the por the basin-type reservoir 8.
[00036] Note that it is sufficient that the nozzle orifice on the edge 26 and the nozzle orifice on the water jet 22 are formed on the same side both on the left and on the right of the basin-type reservoir portion 8.
[00037] The nozzle orifice of the rim 26 on the front side of the nozzle orifice of the water jet 22 is formed, even if splash occurs outside the concave portion 20 of the portion of the basin-type reservoir 8 by the swirl flow (referred to below) as "diagonal swirl flow f4") of discharge water squirted through the nozzle orifice of the water jet 22, it can be restricted by the force of the swirl flow (referred to below as "swirl flow f5") squirted through the orifice splashing edge 26.
[00038] In addition, the length of route LI of the water pipeline 10d is established greater than the length of route L2 of the waterjet pipeline 10b as a means of establishing the timing of the water spout so that the spout of the discharge water jet driven into the nozzle of the water jet 22 through the water jet 10b from the shared water line 10a begin before the discharge from the discharge water edge conducted into the nozzle of the edge 26 through the water channel of the edge 10d from the shared water channel 10a. This form of adjustment allows air present in the shared water duct 10a at the time of the start of the discharge to be evacuated from the water jet nozzle 22 via the water jet duct 10b, so that air discharged through the water nozzle of the edge 26 during the beginning of the water jet in the nozzle hole of edge 26 can be reduced using a simple structure. The sound of firing and splashing produced when air, which has drained from the shared water flue 10a to the water flue 10d along with the discharge water, is compressed into the water flue 10d and discharged through the water nozzle on the edge. 26 can be prevented, as well as splashing water out of vessel 1.
[00039] Also, even if water splash occurs when compressed air inside the water jet duct 10b is discharged together with discharge water in the water jet nozzle 22, the water jet nozzle 22 is positioned at the base of the basin-type reservoir portion 8 - that is, on the side wall surface 20b of the concave portion 20 between the tailings receiving surface 14 and the water drain siphon pipe 12, therefore, splashing of water can be prevented. water out of pot 1.
[00040] Furthermore, even if the air present in the shared water flue 10a during the discharge starts to mix in with discharge water that drains from the shared water flue 10a into the water flue of the border 10d, a nozzle orifice from the border 26 is formed in the front region F of the basin-type reservoir portion 8, so that the water channel on the edge 10d forms a relatively long path from the shared water conduit 10a in the vicinity of the rear surface of the basin-type reservoir portion 8 to the nozzle orifice on the edge 26, and air is sufficiently diffused as it flows through the water conduit on the edge. The sound of the shot and splash of water produced when water is squirted through the nozzle orifice on the edge 26 can be eliminated.
[00041] Note that, in the present modality, it is explained as an example of a means to initiate a water jet nozzle before the beginning of the water jet from the shore, a way by which the length of route LI of the water line of the edge 10d is established greater than the length of the route L2 of the water jet line 10b, but the present invention is not limited to this form, and it is also acceptable to establish the respective flows and volumes within the water line of the border and the water jet line so that the water jet nozzle starts before the water jet starts from the shore.
[00042] It is also acceptable to provide a pipe element communicating with the shared water duct 10a and the interior of the concave portion 20 in place of the water jet duct 10b as a way of evacuating air within the shared water duct 10a.
[00043] Next, referring to figure 3, figures 5 to 7 and figures 9 to 11, details of a rim portion 16, a platform portion 18 and a nozzle hole on the rim 26 of the reservoir portion are described toilet bowl type 8 1.
[00044] Figure 9 is an enlarged perspective view of the nozzle of the rim in the front region in the basin-like portion of a toilet bowl according to an embodiment of the present invention viewed diagonally from below on the rear side; Figure 10 is a partial enlarged plan view in close proximity to the front of the toilet according to the embodiment of the present invention shown in Figure 3; Figure 11 is a partial enlarged perspective view in close approximation of the part of the nozzle orifice on the edge of a toilet according to the embodiment of the present invention shown in Figure 2.
[00045] As shown in figures 3 and 10, the bowl-type reservoir portion 8 is provided with a front region F and a rear region R, which are equal divisions of the portion of the bowl-type reservoir 8 created by the centerline A2 (see figure 3) extending in the left-right direction of the basin-type reservoir portion 8.
[00046] The front region F of the bowl-like reservoir portion 8 is provided with a region F1 that is symmetrically arranged with respect to the centerline Al and the front end portion 16a (the inner circumferential front end portion 16a) of the surface inner circumferential 17 of the edge portion 16, and includes the front end portion 16a, a region F2 positioned behind the region F1, and a region F3 further positioned behind this region F2.
[00047] The front end portion 16a in the front region F1 of the edge portion 16 has the smallest radius of curvature pl across the perimeter of the edge portion 16; the nozzle orifice of the edge 26 is formed in the front region F2 positioned behind the front end portion 16a in the front region F1 of the edge portion 16, and discharge water is squirted towards this front end portion 16a.
[00048] In other words, the nozzle orifice of the edge 26 is disposed in the vicinity of the minimum radius portion of curvature positioned at the front end portion 16a of the edge portion 16, and squirting discharge water towards this minimum portion radius of curvature, the direction vector of the water squirt and the water flow force of the discharge water squirted through the squirt hole of the rim 26 can be stabilized so that, after passing through the front end portion 16a of the portion edge 16, while still maintaining a relatively high water flow force, discharge water may swirl to the rear region R of the edge portion 16. Thus, the rear region that easily soils R of the portion of the basin-type reservoir 8 may be properly washed and, since the discharge water continues to swirl with its flow force maintained after passing through the rear region R, a situation is prevented by al cleaning is deficient because of the inability to also swirl in the vicinity of the front end portion 16a of the border portion 16.
[00049] The discharge water gushed through the nozzle orifice of the edge 26 makes a first swirl of circulation along the edge portion 16 after passing the portion with the smallest radius of curvature of the front end portion 16a of the edge portion 16, but the discharge water flow that flows down from the nozzle orifice of the edge 26 to the platform portion 18 is eliminated by the effect of the centrifugal force that acts on the outside of the edge portion 16 when the portion with the smallest radius of curvature passes of this edge portion 16, therefore a collision with the eddy flow in the platform portion 18 can be restricted when the first circulation vortex has ended and the second circulation vortex is trying to start.
[00050] Furthermore, the nozzle orifice on the edge 26 is adjacent on the left side, seen from the front side of the main unit of vessel 2 in relation to the front end portion 16a in the front region Fl of the edge portion 16 of the portion of the basin-type reservoir 8, and is formed in the front region F2, which is the part in which the radius of curvature p2 changes from a large radius of curvature to a small radius of curvature from the rear towards the front. Discharge water flushed through the nozzle orifice of the rim 26 thus immediately reaches the front end portion 16a in the rim portion 16 with a great flow force maintained, and can then swirl into the rear region R of the rim portion 16, preventing thus a situation in which cleanliness is deficient because of the inability to swirl in the vicinity of the smallest radius of curvature portion of the front end 16a of the rim portion 16. In addition, a moderate loss of energy that arises when water flushed out by nozzle orifice of the edge 26 at a great flow force towards the front end portion 16a in the front region Fl of the edge portion 16 passes over the front end in the front region Fl of the edge portion 16 formed at the minimum radius of curvature pl results in moderate restriction of the flow force, so that water splashing out of the vessel because of the very high flow force big can be prevented.
[00051] Also, most of the rear region R of the rim portion 16 of the bowl-like reservoir portion 8 forms a portion (an arc shape) of a true circle with a fixed radius (radius of curvature p3). Therefore, since the radius of curvature p3 (the radius of the circle) does not change in most of the rear region R of the rim portion 16 of the basin-type reservoir portion 8, loss of energy in the discharge water as it passes over the region rear R of the rim portion 16 can be restricted, and the swirl discharge water can be made more reliably, in such a way that whirlpool occurs with a relatively large flow force maintained even in the rear R portion of the rim portion 16 , and the rear region R of the basin-type reservoir portion 8, which is easily soiled, can be safely cleaned. Also, since most of the rear region R of the rim portion 16 of the basin-like reservoir portion 8 forms a portion of a true circle of a predetermined radius (radius of curvature p3), most of the rear region R of edge portion 16 of the basin-like reservoir portion 8 that is most prominent when viewed by a user diagonally from the front and above forms a portion of a true circle with a predetermined radius (radius of curvature p3), thereby improving the aesthetic appearance of the entire portion of the basin-type reservoir 8.
[00052] In the front region F, the border portion 16 of the basin-type reservoir portion 8 is provided with a front region F3 formed in a radius of curvature p4, equal to the radius of curvature p2 and greater than the radius of curvature p3 ( p4 = p2> p3); this front region F3 is arranged to be strictly close in the vicinity of the front end portion 16a in the front region Fl between the front region F2 and the rear region R. Thus, discharge water that has passed from the nozzle hole on the edge 26 through the portion the front end 16a of the rim portion 16 passes through the front region F2 near the front end portion 16a in the front region F1 of the rim portion 16 of the basin-like reservoir portion 8 and maintains a relatively large flow force as which flows into the F3 front region. Flowing through the front region F3 of the edge portion 16 formed with a radius of curvature p4, which is greater than the radius of curvature p3 of the rear region R of the edge portion 16, this discharge water is able to flow smoothly into the region rear R of the edge portion 16, maintaining in a steady state the flow force of the discharge water from the front regions Fl and F2, which is relatively greater than that of the front region F3, so that, even if the inner circumferential surface 17 of the the edge portion 16 has a shape that rises essentially vertically, it is possible to prevent splashing outside the toilet 1 of the discharge water that flows into the edge portion 16.
[00053] Note that, in this modality, the way in which the radius of curvature pl in the front region Fl of the border portion 16 is set smaller than the radius of curvature p3 of the rear region R of the border portion 16 is explained, but the toilet is not limited to this shape, and it is also acceptable to set the radius of curvature pl of the front region Fl of the border portion 16 equal to the radius of curvature p3 of the rear region R of the border portion 16. Alternatively, it is also acceptable to establish any of the radii of curvature pl, p2, or p4 of the front regions Fl, F2 and F3 of the border portion 16 equal to the radius of curvature p3 of the rear region R of the border portion 16.
[00054] The edge portion 16 of the basin-like reservoir portion 8 is provided with a pendant part 16b, shaped in such a way that the upper edge portion of the nozzle orifice of the edge 26 in the front region F2 facing the the front side to the vicinity of the front end portion 16a in the front region F1 of the rim portion 16 protrudes locally inward, and the top of the splash hole of the rim 26 is covered by this pendant portion 16b.
[00055] The edge portion 16 of the basin-like reservoir portion 8 is provided with an elevating portion 16c shaped to elevate in an appropriate vertical direction in the region of the inner circumferential surface 17 outside the pendant part 16b.
[00056] Thus, an inward-facing pendant shape is formed by the pendant portion 16b in the front regions F1 and F2 around the front end portion 16a of the inner circumferential surface 17 of the border portion 16, and in the front region F3 and rear region R outside the vicinity of the front end portion 16a of the edge portion 16, is made in an approximately vertical elevation shape, so that, in the vicinity of the front end portion 16a of lesser radius of curvature pl of the edge portion 16, there is no splash of water outside the toilet 1, and the drainage force of the flushing water flushed through the nozzle hole on the edge 26 can be increased. Also, since discharge water can swirl upward to the rear R region of the rim portion 16, while still maintaining a relatively large flow force, the rear region that easily soils the basin-like reservoir portion 8 can also be cleans more safely.
[00057] Also, by virtue of the pendant part 16b in the front regions F1 and F2 in the vicinity of the front end portion 16a of the rim portion 16, even if splashing occurs near the nozzle hole on the rim 26 of the rim portion 16 where it is particularly prone to occur, this splash collides on the upper edge portion of the pendant part 16b on the border portion 16 and, therefore, splash outside the vessel 1 can be prevented.
[00058] Furthermore, since the inner circumferential surface 17 of the rim portion 16 of the basin-like reservoir portion 8 is formed so as to raise approximately vertically in the front end region, any tailings that may adhere to it may be easily removed, and sanitation improved.
[00059] Note that, in toilet 1 of the present embodiment, an example is explained as a way in which the inner circumferential surface 17 of the rim portion 16 is provided with an elevating portion 16c, but as an alternative to this portion at elevation 16c, it could also be set in a pending shape essentially across the perimeter of the inner circumferential surface of the border portion, or it could be what is known as the type of open border, in which the inside of a conduit edge water formed along the circumferential direction of the edge portion 16 is left open.
[00060] The nozzle orifice on the rim 26 is positioned at a predetermined distance h above the height position of the platform portion 18 of the bowl-like reservoir portion 8, and is formed on the upper end side of the border portion 16 of the portion of the basin-type reservoir 8. Thus, discharge water sprayed through the nozzle orifice of the rim 26 forms a flow (swirl flow fl) that passes in the vicinity of the front end portion 16a of the rim portion 16 where the radius of curvature is small and vortex to the rear side of the border portion 16, forming a falling flow (falling flow f2) from the upper end side of the border portion 16; the interior of the portion of the basin-type reservoir 8 can thus be effectively cleaned by this swirl flow fl and the falling flow f2. The discharge water sprayed through the nozzle orifice of the rim 26, which is in a relatively high position disposed on the upper end side of the rim portion 16, allows for reliable cleaning around the leading end portion 16a of the rim portion 16 of the portion of the basin-type reservoir 8.
[00061] Furthermore, by forming the nozzle orifice of the edge 26 in the edge portion 16 at a predetermined distance h above the platform portion 18, discharge water squirted through the nozzle orifice of the edge 26 swirling, as will be described in detail below. continue using figures 14 and 15, without the swirl flow fl from the first swirl path of the first circulation TI that flows downwards in the platform portion 18; swirl flow f3 of the second swirl path of the second circulation T2 vortex in the platform portion 18, and in the vicinity of the nozzle hole on the edge 26 where splash is particularly prone to occur, splash caused by the collision between discharge water that swirls around edge portion 16 in the first swirl path of the first circulation TI and in the second swirl path of the second circulation T2 can be eliminated.
[00062] Furthermore, because the nozzle orifice on the edge 26 is formed on the side of the upper end of the edge portion 16 of the portion of the basin-type reservoir 8, the nozzle orifice on the edge 26 reliably falls into the blind angle of the pendant part 16b of the rim portion 16 from the point of view of a user who looks at the bowl-like reservoir portion 8 diagonally ahead and from above, making it more difficult for the user to see the nozzle orifice of the rim 26. In addition, in addition to improve the sense of cleanliness perceived by the user, the overall aesthetic appearance of the basin 8 portion of the reservoir can also be improved.
[00063] In addition, the nozzle orifice on the rim 26 is formed on the rim portion 16, which is positioned even more outward (on the side of the outer portion 18b of the platform portion 18) than the inner rim portion 18a of the platform portion 18 of the basin-type reservoir portion 8 and, as will be described in detail below using figures 14 and 15 in plan views, the first swirl path TI is positioned outside the second swirl path T2. Thus, in the vicinity of the nozzle orifice on the edge 26 where splash is particularly prone to occur, splash caused by the collision between the discharge water in the first swirl path TI and in the second swirl path T2 can be effectively eliminated.
[00064] Also, the rim portion 16 in the basin-like reservoir portion 8 is provided with a continuously formed portion 26c, continuously formed from an upper edge portion 26b that forms the upper surface of a water passage path 26a formed within the nozzle orifice on the edge 26, facing downstream of the rising portion 16c on the inner circumferential surface 17 of the edge portion 16; this continuously formed portion 26c is positioned on the inner circumferential surface 17 of the border portion 16 to the right of the centerline Al (see figure 3), seen from the front side of the main vessel unit 2. The pendant portion 16b of the border portion 16 is continuously formed on the upper surface of the edge 26 nozzle hole by continuously formed portion 26c like this, and therefore, the discharge water squirted through the edge 26 nozzle hole flows smoothly along the inner circumferential surface 17 of the edge portion. 16. Because of the formation of the eddy flow fl and falling flow f2, which pass near the front end portion 16a of the small radius radius border portion 16, the vicinity of the front end portion 16a of the border portion 16 of portion of the basin-type reservoir 8 can be safely cleaned. Furthermore, the continuous formation of the upper edge portion 26b that forms the upper surface of the water passage path 26a that forms the nozzle orifice of the edge 26, and the inner circumferential surface 17 of the edge portion 16, allows water discharge nozzle through the nozzle orifice of the rim 26 flows smoothly along the inner circumferential surface 17 of the rim portion 16 by the centrifugal force, so that splashes produced by the collision of separate swirling wash waters can be eliminated.
[00065] The pendent part 16b in the front regions F1 and F2 of the rim portion 16 extend from the nozzle hole of the rim 26 towards the front side to the front end portion 16a in the front region F1 of the rim portion 16 and , from this front end portion 16a, to the continuously formed portion 26c; viewed from above, the portion of the bowl-like reservoir 8 is arranged symmetrically left-right with respect to the front end portion 16a of the rim portion 16. The nozzle orifice of the rim 26 is thus formed in the vicinity of the front end portion 16a of the edge portion 16, and the pendant part 16b of the edge portion 16 covers the nozzle orifice of the edge 26, so that, viewed by the user diagonally from the front and from above, the nozzle orifice of the edge 26 cannot be seen. In addition, the pendant part 16b of the rim portion 16 is formed to be symmetrical left-right in the vicinity of the front end portion 16a of the rim portion 16 of the bowl-like reservoir portion 8, thus allowing the overall aesthetic appearance of the portion of the basin-type reservoir 8 is improved.
[00066] Also, facing the direction of the nozzle orifice from the edge 26a, the portion of the perimeter 26d on the rear side of the nozzle orifice from the edge 26 is angled from the base to the top. Discharge water sprayed through the nozzle orifice on the edge 26 through the perimeter portion 26d of the nozzle orifice on the edge 26 tilted from the base to the top thus forming a flow (swirl flow fl) that passes in the vicinity of the front end portion 16a of the edge portion of small radius of curvature 16 and swirling towards the rear side of the edge portion 16, and forms a falling stream (falling stream f2) on the side of the upper end of the edge portion 16; the front end portion 16a of the rim portion 16 of the bowl-like reservoir portion 8 can thus be effectively cleaned by this swirl flow fl and falling flow f2.
[00067] The inclination of the base to the top of the perimeter portion 26d of the nozzle orifice on the edge 26 in the direction of the water spout thus allows discharge water squirted through the nozzle orifice on the edge 26 to flow down, even if a portion not cleaned is created at the limit between the first swirl path TI and the second swirl path T2, thus preventing the occurrence of such unclean portions.
[00068] In addition, the part of the discharge water splashed through the nozzle orifice of the edge 26 can be forced to fall by the portion of the perimeter 26d of the nozzle orifice of the inclined edge 26 from the base to the top in this direction of the water splash, this falling discharge water allows more effective suppression of the tendency to splash outwards by the swirling flow f4 squirted through the nozzle of the water jet 22. In the concave portion 20 of the basin-type reservoir portion 8, the addition of water splashing from the rim falling in this way into the water squirted through the nozzle orifice of the water jet 22 results in the creation of a swirl flow f4 provided with a great rotational force in which the horizontal swirl flow and the vertical swirl flow are combined, thereby increasing the tailings discharge performance. In addition, splashing upward when splash water from the rim and jet spray water collide can also be more effectively eliminated.
[00069] The border portion 16 of the basin-type reservoir portion 8 is formed to be symmetrical left-right in the rear region R and front region F3, etc. in the portion of the basin-type reservoir 8 visible to the user when the portion of the basin-type reservoir 8 is viewed diagonally from the front and from the top; the inner circumference of the nozzle orifice on the edge 26 is open, but the top is covered by the pendant part 16b, so it is not visible to a user who looks at the edge portion 16 diagonally in front of and above the reservoir portion basin 8 type, and the overall aesthetic appearance of the basin 8 reservoir portion can thus be improved.
[00070] In particular, as shown in figures 9 to 11, the nozzle orifice on the rim 26 is formed in the vicinity of the front end portion 16a of the rim portion 16 of the bowl-like reservoir portion 8, and the inner circumferential surface 17 in the front region F1 of the edge portion 16 is made in a pendant shape in the vicinity of the front end portion 16a of the edge portion 16 by a vertical surface 17a and a horizontal surface 17b extending into this vertical surface 17a. A forward concave space B is formed in the platform portion 18 in the vicinity of the front end portion 16a of the border portion 16 by this vertical surface 17a and horizontal surface 17b and, in this concave space B, the nozzle nozzle of the border 26 and the vertical surface 17a of the edge portion 16 are continuous so as to be level.
[00071] That is, in the front regions Fl and F2 of the edge portion 16 of the basin-type reservoir portion 8, the nozzle orifice of the edge 26 is formed in a planned space B, formed in such a way that it protrudes forward and in a predetermined width to the left-right in relation to a virtual surface 16d, which is flush with the inner circumferential surface 17 that forms the elevating portion 16c which raises essentially vertical in the rear region R and front region F3 of the portion of edge 16 of the basin-like reservoir portion 8. The upper edge portion of this concave space B matches the pendant part 16b, and the lower end of the front edge portion 16a of the inner circumference surface 16f in the concave space B matches the front edge 18c of the outer lateral portion 18b of the platform portion 18.
[00072] The nozzle orifice of the rim 26 is positioned in front of the rear rim 16e of the upper edge portion 16b of the planned space B and behind the front end 18c of the outer rim portion 18b of the platform portion 18; a water passage path 26a extending from the rear end of the perimeter portion 26d of the nozzle opening of the rim 26 along the surface of the inner circumference 16f in the planned space B to near the front end portion 16a is formed in the planned space B, and the extended portion 26e extending from this water passage path 26a through the most frontal portion 16a of the inner circumference surface 16f in the planned space B is continuously formed from the planned space B to the continuously formed portion 26c of the inner circumferential surface of the border portion 16c. It is thus difficult for users to see the bowl-like portion 8 diagonally from the front and from the top to see the nozzle orifice on the rim 26, and the sense of cleanliness perceived by the user can thus be improved.
[00073] Furthermore, although discussed in detail below using figures 14 and 15, the direction in which discharge water is squirted through the nozzle orifice of the eddy 26 edge and the direction in which discharge water is squirted through the jet nozzle. of whirlpool 22 are the same directions when in flat view. The direction of the water jet Dl in the nozzle orifice of the water jet 22 (arrow Dl in figure 14) is diagonally facing downwards, and is essentially the same direction as the water jet D2 in the nozzle orifice of the edge 26 (arrow D2 in figure 14).
[00074] Next, referring to figures 6, 10, 12 and 13, an adhesive step is described during the manufacture of a ceramic toilet 1 according to an embodiment of the present invention.
[00075] Figure 12 is a side view showing the main unit of the vessel before the adhesive step in a toilet according to an embodiment of the present invention; Figure 13 is a frontal cross-sectional view showing the main unit of the vessel before the adhesive step on a toilet according to an embodiment of the present invention.
[00076] As shown in figures 12 and 13, the main unit of ceramic vessel 2 of toilet 1 of the present embodiment is provided with a main unit of base vessel 2a provided with a portion of the basin-type reservoir 8 on which a surface of receiving tailings 14 and a platform portion 18 are formed and from which a border portion 16 is excluded, and a top vessel main unit 2b provided with a border portion 16, formed beforehand separate from the main vessel unit base 2a at the time the main unit of the vessel 2 is manufactured, after which a portion of the lower end 2d is adhered throughout the portion of the upper end 2c of the main unit of the base vessel 2a in the adhesion step. This upper side main vessel unit 2b is provided with a rim portion 16, which is adhered to the upper end portion of the bowl-like reservoir portion 8 of the base vessel main unit 2a.
[00077] As shown in figure 13, the edge portion 16 of the top side vessel unit 2b is provided with an inner wall portion of the edge 16g and an outer wall portion of the edge 16h, respectively, formed on the inner circumference and on the outer circumference of the border portion 16, a portion of the lower surface of the border 16i joining the two portions of the lower end of the inner wall portion of the border 16g and the outer wall portion of the border 16h, and a portion of the upper surface of the border. edge 16j joining the two top end portions of the inner wall portion of the edge 16g and the outer wall portion of the edge 16h, whereby the water conduit of the edge 10d is formed by the inner wall portion of the edge 16g, portion of the outer wall of the border 16h, portion of the lower surface of the border 16i, and portion of the upper surface of the border 16j. Thus, using the space formed by the internal wall portion of the border 16g, external wall portion of the border 16h, portion of the lower surface of the border 16i, and portion of the upper surface of the border 16j as a water channel of the border 10d, there is no need to erect a separate water duct, and a simple structure can be adopted for the main unit of vessel 2. The structure is further simplified by forming the nozzle hole on the edge 26 in the inner wall portion of the edge 16g, which is in a forward position in the bowl-like reservoir portion 8.
[00078] Furthermore, figures 6 and 10 show the vessel main unit 2 after the step in which the base vessel main unit 2a and the upper side vessel unit 2b are adhered, but the adhesion line C (boundary line) showing the adhesion portion between the portion of the basin-type reservoir portion 8 of the main unit of the base vessel 2a excluding the border portion 16 and the border portion 16 of the main vessel portion of the upper side 2b is positioned in the lower region of the lower surface portion of the border 16i when in a flat top view. Therefore, even if the adhesion line C, the adhesion portion between the border portion 16 and the basin-type reservoir portion 8 excluding this border portion 16, appears on the outer surface of the main vessel 2 unit, this boundary line C is positioned in the lower portion of the lower surface portion of the border 16i, when viewed from above, and is therefore hidden by the lower surface portion of the border of the border portion, so that it cannot be seen, thereby improving the appearance overall external aesthetic of the vessel 1.
[00079] Also, as shown in figures 6 and 13, with respect to the adhesion line C, the adhesion portion being between the basin-type reservoir portion 8 in the main unit of the base vessel 2a and the border portion 16 of the unit main vessel of the upper side 2b, the linear contact between the upper end portion 8a of the basin-type reservoir portion 8 and the lower end portion 16k of the inner wall portion of the rim 16g in the adhesion step forms a boundary line between the main unit of the basin-type reservoir portion 8 and the border portion 16, and this boundary line can be seen from the inside of the main unit of the basin-type reservoir portion 8 and of the border portion 16. Thus, when the rim 16 and the basin-type reservoir portion 8, excluding the rim portion 16, are adhered at the time of manufacture of the main unit of vessel 2, the boundary line (adhesion line C) formed by the linear contact between the lower end portion of by tion of the inner wall of the border 16g and the upper end portion 8a of the portion of the basin-type reservoir 8 excluding the border portion 16 is visible from the portion of the inner-basin reservoir 8, thus facilitating the adhesion work of the border portion 16 and the bowl-like reservoir portion 8 excluding the rim portion 16 when the main vessel unit 2 is manufactured.
[00080] Next, referring to figures 1 to 17, an operation of a toilet according to an embodiment of the present invention is described.
[00081] Figure 14 is a perspective view schematically explaining the first trajectory of the first circulation and the second whirling trajectory of the second circulation by the nozzle water from the edge when the edge cleaning is implemented after the start of the jet flush. in a toilet bowl according to an embodiment of the present invention; figure 15 is a perspective view schematically explaining the state by which the eddy water flow from the rim into a toilet according to a modality of the present invention flows downwards into a concave portion.
[00082] First, flushing of the vessel is initiated when a user operates an operational lever (not shown) in order to flush the vessel, and flushing water in the reservoir tank 6 flows through the shared water pipe 10a, drifting into the water pipe. water jet 10b and water flue from the border 10d. After the spout from the nozzle orifice of the water jet 22 has started at the beginning, the spout from the nozzle orifice of the rim 26 then begins with a delay. At this point, the direction of the water jet Dl in the nozzle orifice of water jet 22 (arrow Dl in figure 14) is diagonally facing downwards, and is essentially the same direction as the water jet D2 in the nozzle orifice edge 26 (arrow D2 in figure 14).
[00083] As shown in figures 11 and 14, nozzle water from the rim squirted through the nozzle hole from the edge 26 flows to the front side along the inner circumferential surface of the edge portion 16, passes in the vicinity of the front end portion 16a from the edge portion 16 where the radius of curvature is minimal, and forms a flow (swirl flow fl) that swirls in a leftward rotation to the rear side of the edge portion 16, as well as forming a flow (falling flow f2 ) whereby a portion of the nozzle water from the rim falls down the side of the upper end of the rim portion 16. After the first circulation, nozzle water from the rim also forms a second circulation rotation for eddy flow to the left f3 within the first circulation swirl flow f 1.
[00084] On the other hand, water squirted in a jet squirted diagonally down towards the front (nozzle direction Dl) through the nozzle of the water jet 22 seeps along the surface of the front side wall 20b and the bottom surface 20a in the front side in the concave portion 20 and, after the vortex as it rises diagonally from the base towards the rear side, it forms a diagonal swirl flow f4, which swirls along the rear side wall surface 20b in the concave portion 20. This diagonal swirl flow f4 forms a swirl flow of rotation to the left when the concave portion 20 is seen in plan view from above; the swirling direction of the water squirted at the edge and the swirling direction of the water squirted in the jet are the same (left rotation) when viewed in flat view.
[00085] As shown in figure 14, the first eddy path TI at the time the discharge water gushed through the nozzle orifice on the edge 26 is swirling in the first eddy flow fl along the edge portion 16 is positioned above and outside the second eddy path T2 at the time of the eddy by the second eddy flow of circulation f3 along the edge portion 16 and the platform portion 18 after the first circulation eddy is finished on this first eddy path of the first IT circulation.
[00086] Then, as shown in figure 14, nozzle water from the rim seeps down into the concave portion 20 along the tailings receiving surface 14 while, for the most part maintaining its strength in the direction of the swirling flow of rotation to the left; it then merges with the swirling stream of jet water in the concave portion 20 and produces a diagonal swirl flow f4 with a relatively strong and rapid rotational force in the concave portion 20.
[00087] Also, as shown in figure 15, a new spurt from the rim continues to occur through the spout hole of the rim 26 after the spout water from the rim merges with the diagonally swirling flow f4 of the spouted water in the concave portion 20 and, as the volume of water from the nozzle swirling on the tailings surface 14 increases, the swirling flow f5 of water from the nozzle at the highest drainage force flows downwards and melts towards the flow in diagonal whirlpool f4 of the jet nozzle water in the concave portion 20, forming a flow by which tailings in the concave portion 20 are strongly pushed towards the inlet hole 12a of the water discharge siphon pipe 12.
[00088] Finally, the relatively strong rotational force of the eddy flow in diagonal f4 in the concave portion 20 after merging with the nozzle water from the rim allows tailings of high specific gravity to be pushed into the water drain siphon pipe 12 from the basin-type reservoir portion 8, and allows low specific gravity floating tailings to be sent from the basin-type reservoir portion 8 to the water discharge siphon pipe 12 by the relatively post-melting rotating diagonal swirl flow fast f4.
[00089] Next, figure 16 (a) shows an example of the results of an analysis of the speed distribution of the flow of water from the nozzle and jet water when flushing into a toilet using a toilet. according to an embodiment of the present invention. Shown are the nozzle orifice at the edge of the toilet (30), the jet nozzle orifice (31), the high-speed flows (32) and the improved drainage force (33).
[00090] Figure 16 (b) shows, as a comparative example in relation to the analytical results shown in figure 16 (a), the results of an analysis of the speed distribution of water flow from the edge of the water and water from the water jet during the discharge of a conventional vessel. Shown in figure 16 (b): the jet nozzle (31), the first (34) and the second (35) nozzle, and the flow at low speed (36).
[00091] The shading of the discharge water shown in figure 16 indicates the extent of the flow speed of the discharge water; when the main unit of toilet 2 of toilet 1 in the above-described mode is seen from above, a relatively high flow rate of discharge water is obtained through the nozzle of the rim in the portion of the basin-type reservoir, passing through the front end of the portion from the edge, to the rear region in which it swirls to the left, and close to the nozzle orifice of the water jet in the concave portion and the region in front of it.
[00092] On the contrary, the toilet in the comparative example shown in figure 16 (b) differs from the shape of toilet 1 in the present modality, and has a shape in which two nozzle holes from the rim (first and second nozzle holes from the edge) are provided in the region on the rear side of the rim portion, and a jet nozzle orifice is provided on the side wall surface on one side of the concave portion in the basin-like reservoir portion, but in the region of the front end of the portion in the portion of the basin-type reservoir in the vicinity of the second nozzle orifice on the rear side, the flow rate of the flushing water is relatively low compared to toilet 1 of the present modality, and thus it is apparent that the flushing of the toilet of the present modality is improved compared to a conventional toilet.
[00093] Next, figure 17 (a) shows an example of the results of an analysis of the flow velocity distribution and the appearance of the jet water flow when flushing into a vessel using a toilet according to with an embodiment of the present invention. Shown in figure 17 (a) are: the jet nozzle orifice (31), and the intensified rotational force (f4).
[00094] Figure 17 (b) shows, as a comparative example in relation to the analytical results shown in figure 17 (a), the results of an analysis of the velocity distribution of the flow water of the jet and its appearance when it occurs flushing into a toilet using a conventional toilet. Shown in figure 17 (b) are the jet nozzle orifice (31), and the weakened rotational force (37).
[00095] First, the shading of the flow lines in the flushing water shown in figure 17 (a) indicates the degree of flow force of the flushing water, but it is apparent that when the main unit of toilet 2 of toilet 1 of the aforementioned modality is seen from the side, the jet nozzle water squirted diagonally downwards towards the front of the jet nozzle hole in the concave portion of the basin-like reservoir portion seeps along the surface of the front side wall and the surface bottom in the concave portion, and vortex as it rises diagonally from below facing the rear side, after which it forms a swirl flow in diagonal f4 that swirls along the wall surface at the rear side in the concave portion and diagonally down .
[00096] On the contrary, the toilet in the comparative example shown in figure 17 (b) is the same way as the toilet in the comparative example shown in figure 16 (b), and the jet water sprayed through the nozzle jet forms a flow that falls on the bottom surface of the concave portion after being squirted towards the surface of the side wall of the concave portion opposite the jet nozzle orifice. Therefore, the flow velocity and the rotational force of the swirling flow in the concave portion of the toilet in the comparative example are weakened and the flow that pushes into the drain siphon pipe is reduced compared to the flow velocity and rotational force. the strong diagonal swirl flow f4 in the front region F of the present modality shown in figure 17 (a), making it apparent that the tailings flush performance is improved in the toilet of the present modality, compared to a conventional toilet.
[00097] According to toilet 1 of the above-described modality of the present invention, the nozzle orifice of the rim 26 for squirting discharge water in the platform portion 18 of the basin-type reservoir portion 8 and forming a swirl flow F1 is formed in the front region F2 of the portion of the basin-type reservoir 8 and is displaced from the rear region of the side that easily soils R of the portion of the basin-type reservoir 8, making it difficult for the tailings to adhere to the nozzle orifice of the rim 26 and its surroundings; furthermore, because the nozzle orifice of the rim 26 is covered by the pendant part 16b of the rim portion 16, the user cannot see it when looking diagonally from the front and from above the portion of the basin-type reservoir 8 and therefore , the user's perception of cleanliness can be improved, as well as the aesthetic appearance of the portion of the basin-type reservoir 8 as a whole.
[00098] According to toilet 1 of the present embodiment, the nozzle orifice of the rim 26 is formed in the vicinity of the front rim portion 16a of the rim portion 16, and the pendant part 16b of the rim portion 16 covers the hole of the nozzle on the edge 26 and, therefore, the user cannot visibly perceive the nozzle orifice on the edge 26, and the user's perception of cleanliness is improved, as well as the aesthetic appearance of the basin-like reservoir portion 8 as a whole. In addition, the pendant part 16b of the rim portion 16 is formed symmetrical left-right in the vicinity of the inner circumferential side portion of the front rim 16a of the border portion 16 of the basin-like reservoir portion 8, thus allowing the overall aesthetic appearance of the portion of the basin-type reservoir 8 is improved.
[00099] In addition to the toilet 1 of the present modality, the nozzle orifice on the rim 26 is formed on the side of the upper end of the rim portion 16 of the bowl-like reservoir portion 8 and therefore for a user looking at the bowl-like reservoir portion 8 diagonally from the front and from the top, the nozzle orifice of the edge 26 falls squarely at the blind angle of the hanging part 16b of the edge portion 16, making it difficult for the user to see the nozzle orifice of the edge 26. The sense of cleanliness perceived by the user can be improved, as well as the aesthetic appearance of the portion of the basin-type reservoir 8 as a whole.
[000100] Furthermore, according to the toilet 1 of the present modality, the nozzle orifice of the edge 26 is hidden by the pendant part 16b of the edge portion 16 and, therefore, the edge portion 16 can be made symmetrical left- right across the region visible by a user diagonally in front of and above the portion of the bowl-like reservoir 8. As a result, the present invention allows the aesthetic appearance of the general bowl-like reservoir portion 8 to be improved.
[000101] Furthermore, according to the toilet 1 of the present modality, most of the rear region R of the rim portion 16 of the basin-type reservoir portion 8 forms part of a true circle with a predetermined radius and, therefore, when a user looks diagonally from the front and from above, most of the most prominent rear region R of the rim portion 16 of the basin-like reservoir portion 8 forms part of a true circle of a predetermined radius (radius of curvature p3) and therefore , the aesthetic appearance of the general bowl-like reservoir portion 8 can be improved.
[000102] In addition, according to the toilet 1 of the present modality, the nozzle orifice of the rim 26 is formed in the vicinity of the front rim portion 16a of the rim portion 16 of the basin-type reservoir portion 8, and in the vicinity from the inner circumferential side portion of the front edge 16a of the border portion 16, the inner circumferential surface 17 of the border portion 16 forms a planned space B protruding towards the platform portion 18 comprised of the vertical surface 17a and the horizontal surface 17b if extending into this vertical surface 17a; in the planned space B, the nozzle orifice of the edge 26 and the vertical surface 17a of the edge portion 16 are continuously formed so that they are level, making it difficult for the user to see the nozzle orifice of the edge 26 when viewed diagonally from the front and from above the portion of the basin-type reservoir 8, so that the sense of cleanliness perceived by the user is improved. The aesthetic appearance of the basin-like reservoir portion 8 as a whole is also improved.
[000103] Note that, in toilet 1 of the above described mode, a flush toilet below is explained as an example, but the toilet can also be a siphon toilet in which the siphon effect is used to remove discard in the portion of the basin-type reservoir and immediately discharge it through a discharge siphon pipe.
[000104] In addition, in toilet 1 of the present modality described above, a way in which the jet nozzle is carried out using a water jet duct 10b and a water jet nozzle 22, and the water nozzle is explained edge is made using a 10d edge water duct and a edge 26 nozzle orifice, but the present invention is not limited to this, and can also be applied to a form in which the jet stream through the water jet duct 10b and the nozzle orifice of the water jet 22 is omitted, and only the nozzle of the rim through the water conduit of the edge 10d and the nozzle of the rim 26 is made.
[000105] Although the present invention has been explained with reference to specific preferred embodiments, those skilled in the art will recognize that modifications and improvements can be made, while remaining within the scope and spirit of the present invention. The scope of the present invention is determined only by the appended claims.

权利要求:
Claims (6)
[0001]
1. Toilet bowl (1) for flushing waste using flushing water supplied by a flushing water source (6), the toilet comprising: a portion of the basin-type reservoir (8) including a tailings receiving surface in the form of basin-type reservoir (14), a rim portion (16) formed in its upper edge portion so that its inner circumferential surface (17) is essentially vertical, and a platform portion (18) formed between the portion border and the tailings receiving surface; a water discharge path (12) for discharging the tailings, the path including an inlet (12a) which is connected to the base of the basin-like portion of the reservoir; a water squirt portion (26) to squirt discharge water into the platform portion of the basin-like reservoir portion to form a swirl flow (fl); and a water conduit (10) for supplying the discharge water in the nozzle portion; characterized by the fact that the water squirt portion (26) is formed in the front region (Fl) of the basin-like reservoir portion, a part of the inner circumferential surface of the rim portion is formed in an inward-facing pendant shape (16b) , and a planned space (B) is formed by the pendant part and the platform portion; and the water splash portion (26) is formed within the planned space (B) and covered by the pending portion of the border portion in such a way that a user cannot observe the water splash portion when looking diagonally from the front and from the portion of the basin-type reservoir.
[0002]
2. Toilet bowl (1) according to claim 1, characterized by the fact that the water splash portion (26) is formed in the vicinity of the front end of the border portion of the basin-type reservoir portion, and the pendant portion of the the edge portion is formed symmetrical left-right in the vicinity of the front end of the edge portion of the basin-type reservoir portion in order to cover the water splash portion.
[0003]
3. Toilet (1) according to claim 2, characterized by the fact that the water spout portion (26) is formed on the upper end side of the rim portion of the basin-type reservoir portion.
[0004]
4. Toilet (1) according to claim 2 or 3, characterized by the fact that the edge portion of the basin-type reservoir portion is symmetrical left-right in the visible region of a user diagonally from the front and from above the portion of the basin-type reservoir.
[0005]
5. Toilet (1) according to any one of claims 1 to 4, characterized by the fact that most of the rear region of the border portion of the portion of the basin-type reservoir forms part of a true circle with a predetermined radius (p3 ).
[0006]
6. Toilet (1) according to any one of claims 1 to 5, characterized by the fact that the water spray portion (26) is provided with a water spray hole (26) formed in the vicinity of the front end of the edge portion of the basin-type reservoir portion; in the vicinity of the leading edge of the edge portion, the inner circumferential surface (17) of the edge portion is made in a pendant shape (16b) from a vertical surface (17a) and a horizontal surface (17b) extending into the surface vertical; a planned space (B) protruding forward in the vicinity of the front end (16a) of the border portion is formed on the platform portion by the vertical surface and horizontal surface and, in the planned space, the water splash hole (26) of the water splash portion and the vertical surface of the edge portion are continuously formed so that they are level.

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法律状态:
2015-08-18| B03A| Publication of an application: publication of a patent application or of a certificate of addition of invention|

2018-12-11| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|

2019-05-28| B15N| Others concerning applications: notification of judicial decision|Free format text: VARA: 25A VARA FEDERAL DO RIO DE JANEIROPROCESSO N.O 5022017-09.2019.4.02.5101) - NUP: 00408.027367/2019-14IMPETRANTE: KASZNAR LEONARDOS ADVOGADOSIMPETRADO: PRESIDENTE DO INSTITUTO NACIONAL DA PROPRIEDADE INDUSTRIAL - INPI?ANTE O EXPOSTO, DENEGO O MANDADO DE SEGURANCA E JULGO EXTINTO O PROCESSO SEM RESOLUCAO DO MERITO, COM FULCRO NO ARTIGO 6O, 5O, DA LEI NO 12.016/2009 C/C ARTIGO 485, VI DO CODIGO DE PROCESSO CIVIL.? |

2020-05-26| B09A| Decision: intention to grant|

2020-10-13| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 22/08/2012, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

申请号 | 申请日 | 专利标题

JP2011182899A|JP5935970B2|2011-08-24|2011-08-24|Flush toilet|

JP2011-182899|2011-08-24|

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