JP3823963B2 - Flush toilet - Google Patents

Description

  The present invention relates to a flush toilet that flushes wash water from a tank that stores wash water as fresh wash water through a toilet bowl and cleans it.

  There are various methods for cleaning the toilet bowl by passing the cleaning water into the toilet bowl, and there is a method (so-called “jet cleaning”) in which the cleaning water is sprayed toward the trap in the toilet bowl water. Widely used. In addition, a method (so-called rim cleaning) in which cleaning water is jetted and cleaned along the inner wall surface of the upper edge of the ball surface has been proposed (patented). Reference 1). In the flush toilet described in Patent Document 1, the cleaning start timing of rim cleaning is brought close to the timing of zet cleaning. By doing so, the toilet paper or the like attached to the toilet bowl surface is poured into the water stored in the ball portion during the siphon continuation, and the toilet paper or the like is surely discharged.

Japanese Patent Laid-Open No. 10-237928

  In the method of Patent Document 1, a water flow deflecting member is provided at the inflow portion of the tank wash water, and the wash water that collides with the water flow deflecting member and jumps up is led to a flow path for rim cleaning by changing its direction. Yes. By the way, the purpose of this water flow deflecting member is to drain the toilet paper or the like into the stored water, so that a large flow rate is not required for rim cleaning. For this reason, it is sufficient to guide the cleaning water to the rim by collision or splashing on the water flow deflecting member, and there remains room for improvement in ensuring the rim cleaning flow rate and increasing the rim cleaning flow rate.

  In addition, since only a small amount of the cleaning water is introduced to the rim by causing collision or jumping to the water flow deflecting member, the ability to remove the ball surface dirt by the rim cleaning is not sufficient. In addition, as long as the purpose was to flush the toilet paper or the like into the stored water, there was no particular problem in practical use even if the amount of washing water led to the rim was small.

  The present invention has been made to solve the above-described problems, and an object thereof is to improve the cleaning function when rim cleaning is used in combination.

In order to solve the above-described problems, the present invention provides a rim ejection port for ejecting cleaning water from a tank for storing cleaning water as new cleaning water in a substantially horizontal direction along the upper edge of the ball surface, and a trap discharge. A siphon jet flush toilet that discharges the stored water stored in the toilet bowl part from the trap together with filth , in a substantially horizontal direction. The guide recess formed in the groove shape is communicated, and the rim shot cleaning water ejected from the rim ejection port swirls in the substantially horizontal direction along the guide recess , and the amount of ejection water from the jet ejection port More than the amount of water ejected from the rim outlet.

  For example, the amount of water ejected from the rim outlet can be adjusted to about 50 to about 75% with respect to the amount of water ejected from the jet outlet. In this way, the amount of washing water discharged from the jet outlet can be made larger than the amount of washing water discharged from the rim outlet, so that suction of the washing water into the trap suction port can be ensured, and as a result, the inside of the trap can be quickly brought about by this washing water suction. Clean water can be filled.

  According to the present invention, the swirling water is swirled by the rim shot washing water, so that the drainage effect of the accumulated water and the filth in the stored water is enhanced. Moreover, when turning on the ball surface, the ball surface adhering dirt is peeled off with a high peeling force by the turning force of the ball surface, and dropped into the recess at the bottom of the ball.

  In addition, since the amount of water ejected from the jet outlet is larger than the amount of water ejected from the rim outlet, it is ensured that the washing water is sucked into the discharge port, and the washing water is quickly filled in the trap. Can be achieved. For this reason, it is useful for the siphon action induction in the early stage.

  In order to further clarify the configuration and operation of the present invention described above, an embodiment of the flush toilet of the present invention will be described below. FIG. 1 is a schematic perspective view showing a siphon-zette type toilet bowl 10 according to an embodiment of the present invention together with a state of washing water jetting employed, and FIG. 2 shows the main parts of the toilet bowl 10 in relation to a flow path. It is explanatory drawing for demonstrating while showing. FIG. 3 is an explanatory view showing the toilet 10 with a part of its upper surface broken away, and FIG. 4 is an explanatory view showing a schematic longitudinal section in which the toilet 10 is broken along the line 4-4 in FIG. FIG. 5 is an explanatory view showing a schematic cross section broken along the 5-5 bend line in FIG. 3. 6 is a schematic enlarged view of a main part X of FIG. The siphon-jet toilet 10 performs washing water ejection from a jet jet port 22 described later and washing water ejection at the upper edge of the ball surface as it is washed. Hereinafter, each part of the toilet 10 will be described with reference to the drawings.

  As shown in these drawings, the toilet 10 includes a ball portion 20 that receives filth. The peripheral wall of the ball portion 20 includes a water-covering surface 23 that comes into contact with the stored water RW even when the toilet 10 is not washed, and an exposed surface 24 that does not come into contact with the stored water RW when the toilet 10 is not washed.

  This toilet 10 has two washing water ejection systems. One jet system (the jet jet system) is from the wash water supply hole 40 which is the tank wash water inlet from the wash water tank 310 (see FIG. 4) to the jet jet port 22 opened in the recess 26 at the bottom of the ball portion. Have the path. The other path (the rim shot ejection system) has a path from the washing water supply hole 40 to the rim ejection port 44 formed in the upper side surface of the ball portion 20. The jet jet system and the rim shot jet system are separated and formed in an upper inflow portion 41a and a lower inflow portion 41b in the vicinity immediately below the washing water supply hole 40, as will be described later. Divided supply.

  As shown in the drawing, the jet outlet 22 is provided at a position substantially opposite to the trap outlet 25 with the recess 26 interposed therebetween. The jet outlet 22 is connected to a jet water supply hole 45 below the lower inflow portion 41b via a jet water supply passage 46 formed so as to curve the inside of the toilet. The rim spout 44 is formed so as to communicate with a guide recess 24a that is recessed in a substantially horizontal direction along the upper edge of the ball surface (specifically, the exposed surface 24) of the ball portion 20.

  The toilet 10 is made into a ball part 10a, a main body lower part 10b, and a water supply channel shielding part 10c in the course of its manufacture, and these parts are joined and blended, and then fired.

  Inside the toilet 10, in addition to the above-described two systems for ejecting water to the ball portion 20, a conduit mechanism for discharging filth in the ball portion 20 toward the drainage startup pipe 90 A trap having (hereinafter referred to as a discharge mechanism) is provided.

  First, the structure of the ejection system will be described. A flush water supply hole 40 is provided behind the toilet 10 as a flush water inflow hole from a discharge port portion (not shown) at the bottom of the flush water tank 310. The wash water tank 310 has a drain valve (not shown) at the bottom thereof, and supplies the entire wash water for toilet flushing. It should be noted that the amount of washing water discharged from the trap (to be described later) to the outside of the toilet (discharged washing water amount) can be adjusted by controlling the opening of the drain valve of the tank, and is set to a predetermined amount, for example, about 6 liters during stool washing Can be set.

  The tank cleaning water that has passed through the cleaning water supply hole 40 flows into the hollow inflow portion 41 below the water supply hole. In the present embodiment, the flow dividing partition wall 41c is provided between the left and right inner side walls 41sr and 41sl (see FIG. 3) forming the inflow portion 41. The diversion partition wall 41c is formed to extend between the left and right inner walls, and divides and separates the inflow portion 41 into the upper inflow portion 41a and the lower inflow portion 41b. In this case, as shown in FIG. 6, the flow dividing partition wall 41 c has a flow adjusting member 50 having an opening 42 at the end opposite to the ball portion 20, that is, in the vicinity of the cleaning water supply hole 40 as shown in FIG. 4. Is installed.

  The flow dividing adjusting member 50 has a slit-like engaging piece 51 protruding downward, and is engaged with the peripheral wall of the partition wall opening 41d to be fixed to the flow dividing partition wall 41c. Moreover, the shunt adjusting member 50 can be removed by curving the engaging piece 51. The flow dividing adjusting member 50 is a resin molded product of a general resin such as ABS or a metal molded product. The diversion adjusting member 50 can be replaced with one having a different area of the opening 42, and the opening area can be changed by fitting and fixing a member (not shown) to the opening 42.

  FIG. 7 is an explanatory diagram for explaining the state of the cleaning water flow by the flow dividing partition wall 41c and the flow dividing adjusting member 50. As shown in FIGS. 7A and 7B, the wash water (inflow wash water) that has passed through the wash water supply hole 40 is injected into the rim through the upper inflow portion 41a by the diversion partition wall 41c and the diversion adjustment member 50. The flow is divided into a flow of cleaning water that reaches the outlet 44 and a flow of cleaning water that reaches the jet jet port 22 via the lower inflow portion 41b, and is supplied to both jet ports. That is, of the inflowing wash water, the wash water that has passed through the opening 42 of the diversion adjusting member 50 is quickly ejected from the jet outlet 22 through the lower inflow portion 41b and the jet water supply hole 45 and the jet water supply path 46. In addition, of the inflowing cleaning water, the cleaning water that has not entered the opening 42 is quickly ejected from the rim outlet 44 through the upper inflow portion 41a. Since the lower region of the cleaning water supply hole 40 has a limited volume, it is filled with the cleaning water immediately after the water supply. Therefore, the wash water is directly supplied to both the above-mentioned jet outlets almost simultaneously, and no energy loss of the wash water occurs at each supply. In the moment immediately after the water supply, the washing water that has entered the flow dividing wall 41c without entering the opening 42 and the flow dividing wall 50c are guided by the flow dividing wall end portions 41e on both sides of the flow dividing adjustment member 50 and ride on the flow dividing wall 41c. A diversion supply to the rim outlet 44 of the washed water occurs. However, since such a diversion supply is immediately canceled and becomes the direct one as described above, the running amount of the washing water is only a few tens of millimeters in this embodiment. Loss is virtually negligible.

  In this case, as described above, if the diversion adjusting member 50 is replaced by using the cleaning water supply hole 40 or the opening area of the opening 42 is changed, the flow that reaches the rim jet port 44 through the upper inflow portion 41a is cleaned. It is possible to adjust the ratio between the amount of water (rim shot ejection amount) and the amount of washing water (jet ejection amount) flowing from the lower inflow portion 41b to the jet ejection port 22. In the present embodiment, by adjusting the effective passage area of the opening 42 in the flow adjusting member 50, the amount of rim shot jetted from the rim jet port 44 is about 50 to about 75% of the amount of jet jetted. did. Therefore, since the jet ejection amount can be made larger than the rim shot ejection amount, the suction of the cleaning water into the discharge port 25 can be ensured, and the cleaning water in the trap can be quickly filled with the cleaning water suction. For this reason, it is useful for the siphon action induction in the early stage. In this embodiment, the amount of water ejected from the rim outlet 44 is about 1 to about 2 liters, preferably about 1.5 liters. Further, when the ratio is adjusted, when the cleaning ability (dirt peeling ability) by rim shot ejection is increased, the opening area may be increased.

  Since the flow adjusting member 50 is configured separately from the toilet body in this way, the shape and effective area of the opening 42 of the flow adjusting member 50 can be made uniform. Therefore, in the flush toilet equipped with the diversion adjusting member 50 in the toilet body, the reliability of the diversion supply to the rim jet port 44 and the jet jet port 22 can be improved. In this case, if the shunt adjusting member 50 is provided with a shutter and driven by an actuator, the effective area (passage area) of the opening 42 is adjusted each time, and the rim outlet 44 and the jet outlet 22 are adjusted. The ratio of the divided flow supply, that is, the ratio between the rim shot ejection amount and the jet ejection amount can be variously changed.

  In the upper inflow portion 41a, the wash water supplied in a divided manner in this manner immediately flows to the rim outlet 44 after being divided and is ejected from the outlet. Further, even in the lower inflow portion 41b, it immediately flows into the jet outlet 22 after the diversion and is ejected from the outlet. Accordingly, the washing water can be ejected almost simultaneously from the rim ejection port 44 and the jet ejection port 22 of both ejection systems.

  As shown in FIG. 4, the rim outlet 44 is formed at a position lower than the branching point by the branching adjustment member 50. Accordingly, the upper inflow portion 41a formed by the diversion partition wall 41c forms a water supply path that is inclined toward the rim jet port 44, so that the washing water does not inadvertently flow backward from the rim jet port 44 side. You can Further, since it is possible to prevent energy loss of the cleaning water while flowing through the upper inflow portion 41a, the cleaning water can be ejected vigorously from the rim outlet 44 with a large flow velocity.

  The rim spout 44 is located at the base of the rim 21 at the upper end of the ball surface, and the rim 21 is overhanging so as to cover the rim spout 44. Thus, the rim portion 21 makes it difficult to see the rim outlet 44 from above, and the appearance can be improved.

  As described above, the flow dividing partition wall 41c that partitions the upper and lower inflow portions has, on the ball portion 20 side, a raised portion 43 in which a part of the partition wall protrudes upward in a convex shape. As shown in FIG. 3, the raised portion 43 has an inclined side surface 43a in the planar shape. For this reason, the raised portion 43 corrects the flow of the washing water indicated by the white arrow in the figure flowing through the upper inflow portion 41a into a flow directed to the rim outlet 44 by the inclined side surface 43a. For this reason, the flow rate of the washing water toward the rim jet port 44 can be increased.

Further, the raised portion 43 has an air communication hole 47 in the side wall 43 b on the ball portion 20 side of the raised portion. In the vicinity of the side wall 43b, the cleaning water flowing through the upper inflow portion 41a does not collide directly, and the flow of the cleaning water is corrected as described above. Therefore, since there is almost no cleaning water in the vicinity of the side wall 43b during the supply of the cleaning water, the cleaning water in the upper inflow portion 41a hardly flows into the lower inflow portion 41b from the air communication hole 47. Alternatively, the cleaning water flows only at a part of the communication hole. Therefore, the air in the lower inflow portion 41b can be preferably discharged to the outside by the air communication hole 47 provided in such a place. That is, when the cleaning water flows into the lower inflow portion 41, the air inside the lower inflow portion 41 b is quickly discharged through the air communication hole 47 as the cleaning water flows. For this reason, the inside of the lower inflow portion 41b is quickly filled with water after the start of cleaning, and the cleaning water can be ejected from the jet outlet 22 at an early stage, and the siphon action associated therewith can also occur early to enhance the cleaning function. .

  As described above, the rim jet outlet 44 of the rim shot jet system is formed so as to communicate with the guide concave portion 24a formed in a groove shape in a substantially horizontal direction. Therefore, the behavior of the washing water ejected from the rim ejection port 44 (hereinafter, the washing water ejected in this way is referred to as rim shot washing water) is as follows. That is, as shown in FIG. 1, the rim shot cleaning water RS swivels in a substantially horizontal direction along the upper edge of the ball surface while being guided by the guide recess 24a of the ball portion 20, and from this swirling mainstream to various places. It becomes a branched flow and travels down along the exposed surface 24. The depressed shape of the guide recess 24a is not limited to the shape shown in FIGS. 4 and 5, and the washing water that swirls while being guided by the guide recess 24a branches off from the swirling mainstream at various points. Any shape may be used as long as it flows along the exposed surface 24.

  The flow of the cleaning water branched from the main flow of the rim shot cleaning water RS thus moves so as to slide on the ball surface, and imparts a counterclockwise turning force to the water RW stored in the ball portion. As a result, the accumulated water RW in the ball portion 20 is discharged from the discharge port 25 as a counterclockwise swirling flow. As described above, the swirling water is swirled by the rim shot cleaning water, so that the effect of discharging the accumulated water and the filth in the accumulated water is enhanced. In addition, when the washing water of the flow branched as described above swirls on the ball surface, the ball surface adhering matter is peeled off with a high peeling force by the swirling force, and dropped into the recess 26 at the bottom of the ball portion. Note that the rim outlet 44 and the upper inflow portion 41a may be formed on the right side in FIG. 3, or the jet water supply path 46 may be formed on the right side.

  Further, the location of the cleaning water flow when the flow is supplied to the rim jet port 44 and the jet jet port 22, that is, the installation location of the flow adjusting member 50, is set near the cleaning water supply hole 40. Accordingly, since the wash water can be diverted in the vicinity of the wash water supply hole 40 located at a position away from the rim spout 44, the wash water after the diversion can be ejected in a state in which the flow is relatively undisturbed. It can flow to the outlet 44 and be ejected. As a result, the cleaning water can be ejected from the rim ejection port 44 to the upper edge of the ball surface without any disturbance in the flow. Therefore, it is possible to prevent a large disturbance from occurring in the substantially horizontal turning caused by the cleaning water along the guide concave portion 24a at the upper edge of the ball surface, and the cleaning water may be inadvertently ejected from the upper edge of the ball surface. Will also disappear. Also, the toilet bowl can be cleaned.

  The toilet 10 has a weir 41f installed so as to surround the flush water supply hole 40 on the toilet rear side, and forms a gap between the weir 41f and the toilet rear outer wall. The upper end of the weir 41f is extended to the vicinity of the wall surface around the cleaning water supply hole 40 so that the cleaning water does not enter the gap. For this reason, of the inner volume of the inflow portion including the upper inflow portion 41a and the lower inflow portion 41b, even if air remains in this gap portion, the diversion supply of washing water toward the jet outlet 22 and the rim outlet 44 Can start. Therefore, since the substantial volume in the inflow portion can be reduced by the gap volume, the washing water can be ejected to the ball portion at an early stage.

  Next, the discharge mechanism will be described. As shown in FIG. 4, at the tip of the discharge port 25 formed at the back of the concave portion 26 as a filth reservoir, a curve of water or filth is trapped from the discharge port 25 in an obliquely upward direction. A connecting path 31, an ascending path 32 that curves in the lateral direction after extending in the bending direction of the connecting path 31, and a descending path 33 that curves downward from the lateral direction are formed. The end of the descending path 33 is connected to a drainage rising pipe 90 provided on a wall or floor on the building side through a resin drainage socket 70.

  As shown in FIG. 4, in the toilet bowl 10 before the cleaning operation, the accumulated water RW is accumulated at the height of the normal water level line WL in the connection path 31, the ascending path 32, and the ball portion 20. This stored water RW prevents the backflow of odors and the entry of pests from the drainage mechanism to the ball unit 20.

  The accumulated water RW includes water accumulated in the ball portion 20 up to the discharge port 25 (hereinafter, this water is referred to as ball portion accumulated water), and water accumulated in the connection path 31 and the ascending path 32 after the discharge port 25. (Hereinafter, this water is referred to as “reserved water in the flow path”) and water accumulated in the lower portion of the lower inflow portion 41b of the toilet 10 and the zette water supply channel 46 (hereinafter, this water is referred to as “zet accumulated water”). As shown in FIG. 4, the accumulated water in the flow path is collected only at one place from the connection path 31 to the ascending path 32 among the sewage flow paths including the connecting path 31, the ascending path 32, and the descending path 33. . In addition, “sewage” refers to water that is contaminated by mixing filth such as urine and urine and paper.

  A mechanism for discharging sewage and filth by the drainage mechanism configured as described above will be described. When the cleaning water is discharged from the cleaning water tank 310, the discharged cleaning water is supplied to the upper inflow portion 41a and the lower inflow portion 41b, and the rim jet port 44 or the kinetic energy is used as the kinetic energy at both inflow portions. It is ejected from the jet outlet 22. The washing water jet from the jet jet port 22 starts the jet of washing water from the jet jet port 22 toward the trap. After that, while the discharge of the washing water is continued, the discharge cleaning is performed with the energy described above. Water itself is continuously ejected from the jet outlet 22. Further, at substantially the same time as the jet ejection operation, the washing water ejection is started from the rim ejection port 44 and continued.

  When the jetting is started and a bent portion (hereinafter referred to as a bent portion) from the ascending path 32 to the descending path 33 becomes full, a pressure difference is generated between the tip of the descending path 33 and the ball portion 20 side of the stored water. This generates a downward pulling force. Due to this pulling force, the sewage at a position lower than the bent part is led to the drainage riser pipe 90 together with the filth. Thus, siphon action is induced.

  Next, a method for manufacturing the toilet 10 will be described. This manufacturing method is only different from the manufacturing method of the existing rim jetting / jet jetting toilet without the flow dividing wall 41c and the mold structure used for molding the ball part 10a. FIG. 8 is an explanatory diagram for explaining a mold configuration used for mold molding of the ball part 10 a in the toilet bowl 10. Each type is a porous suction type.

  As shown in the figure, when the ball part 10a is molded, an upper mold 100, a lower mold 101, and a mating mold 102 are used. The upper die 100 is a die for forming the upper wall portion 121 of the rim portion 21 at the upper end of the ball surface, the washing water tank 310, the placing portion upper wall portion 122 of the toilet seat (not shown), and the placing portion upper side wall portion 123. . The upper die 100 has a convex portion 100a for forming the cleaning water supply hole 40, and is joined to the lower die 101 and the mating die 103 at the boundary between the rim portion 21 and the upper end radius of the placement portion.

  The lower mold 101 includes a placement portion lower side wall portion 141, a lower wall portion 142 that becomes a diversion partition wall 41c after firing, a rear lower wall portion 143 that becomes an installation portion of the weir 41f, and a lower side wall portion 144 of the rim portion 21. And a raised wall portion 145 to be the raised portion 43. The lower mold 101 has a convex portion 101a for forming a partition wall opening 41d to be a mounting hole for the flow dividing adjustment member 50, and a convex protrusion 101b for forming a raised wall portion 145. The mating die 102 is a die for forming the inner side wall portion 145 of the rim portion 21 and is divided around the rim so that there is no hindrance to mold release. When these molds are joined to each other, and slurry is injected into the cavity formed by each mold, and each mold is sucked, the slurry is deposited following the mold shape of each mold as shown. Thereafter, after drying and releasing, a hole for forming a rim jetting port 44 is formed in the side surface of the raised wall portion 145 on the ball portion side, thereby including the rim portion 21 at the upper edge of the ball surface and the upper structure of the entire toilet. Is formed. A mud plate for forming the weir 41f is inserted into the ball part 10a from the washing water supply hole 40, and the mud plate is adhered and adhered to the rear lower wall portion 143. At this time, a gap is left at the upper end of the mud plate to prevent mold cracking during firing.

  In addition, the toilet lower structure including the remaining toilet parts such as the lower part of the ball part, the concave part 26, the trap conduit, and the lower part of the toilet body using an existing mold (not shown) (upper mold, lower mold or left and right molds) A main body lower part 10b having a mold is prepared by molding. Furthermore, the water supply path shielding part 10c which shields the recess for the zette water supply path 46 formed in the main body lower part 10b over the path is prepared. The molding of the water supply channel shielding part 10c is not different from the existing one.

  When the preparation of each part is completed in this way, the respective parts are joined to each other at the end faces, and the jointed part is subjected to a blending process with a finger or a brush and baked. In adopting such a manufacturing process, it is only necessary to change the mold shape of the lower mold 101 for molding the ball part 10a, so that the cost can be reduced.

  According to the flush toilet of the present embodiment described above, the inflow washing water from the washing water supply hole 40 is energized by splashing up or the like when the rim shot jet from the rim jet nozzle 44 and the jet jet from the jet jet outlet 22. A diverted supply is promptly supplied to each outlet without any loss. For this reason, it is possible to execute the rim shot ejection that causes separation of the attached dirt on the ball surface with a high flow velocity and energy (potential energy). Therefore, the cleaning ability accompanying rim shot ejection can be improved. In addition, the swirling of the cleaning water in the substantially horizontal direction along the upper edge of the ball surface can be caused by rim shot jetting with large energy and high flow velocity. Therefore, in combination with the high jet velocity and high energy of the jet jet that jets the washing water directly to the bottom of the ball portion, the toilet bowl washing ability can be further enhanced.

  Further, the flow of the washing water guided to the rim jet port 44 by the upper inflow portion 41a for the rim shot jet is corrected to a flow directed to the rim jet port 44 by the inclined side surface 43a of the raised portion 43, and the rim jet port 44 is corrected. Increase the flow rate of the wash water towards For this reason, the swirling energy of the cleaning water by the rim shot jetting from the rim jetting port 44 can be increased, and the dirt removing ability of the ball surface can be further improved.

  Next, a modified example will be described. FIG. 9 is an explanatory diagram showing a partially broken upper surface of a toilet bowl 10A according to a modification. As illustrated, the toilet 10 </ b> A of this modification includes an annular rim water supply path 243 inside the rim portion 21. And the washing water ejection from the rim | limb part 21 is performed from the through-hole provided with two or more by the hole diameter or shape different in a rim | limb part lower surface. In the present embodiment, the through-hole has five types of through-holes: a large-diameter through-hole 244a, a medium-diameter through-hole 244b, a small-diameter through-hole 244c, and substantially rectangular long-hole through-holes 244d and e. A hole was formed.

  In addition, the diversion partition wall 41c for supplying the wash water through the opening 42 in the same manner as in the above-described embodiment divides and separates the upper inflow portion 41a and the lower inflow portion 41b from above and below with this sandwiched therebetween. And it has the protruding part 200 made into the substantially triangular shape in the ball | bowl part 20 side in the upper surface of this branching division wall 41c. The raised portion 200 corrects the washing water flowing through the upper inflow portion 41a so that the direction of the washing water is directed to the left and right rim portions so as to be directed to the respective through holes. In addition, air is vented from the lower inflow portion 41b through the air communication hole 47 formed in the side wall of the raised portion 200.

  Even in the toilet bowl 10A of the modified example configured as described above, the same effects as those of the above-described embodiment can be obtained.

  In addition, it can be set as the thing for providing a swirl component to the jet washing water from these through-holes by making the pipe line direction of each above-mentioned through-hole diagonally. In this way, the wash water urged from the left and right in the forward direction of the toilet 10A and supplied to the left and right rim water supply channels 243 is distributed according to the opening diameter of each through hole and the urging force of the wash water. , And are discharged from the respective through holes 244a to 244e. At this time, water with a large urging force is exposed slightly to the left or right of the front of the toilet from the long through hole 244d formed on the back side of the rim 21 on the left and right rear, which is close to the raised portion 200. It is ejected toward the surface 24. In addition, a large amount of washing water flowing clockwise or counterclockwise through the rim water supply passage 243 is discharged from the through holes 244e of the left and right elongated holes on the front side of the toilet bowl toward the exposed surface 24 from the front of the toilet bowl. . The washing water discharged from the through holes 244d and 244e of the long holes becomes the mainstream, and the swirling force in different directions is applied to the left and right of the toilet bowl, and the ball surface attached dirt can be peeled off during the turning.

  Further, the cleaning water ejected from the through hole 244c having a small hole is caught in the cleaning water ejected from the through hole 244a having a large hole and flows down along the ball surface due to the difference between the kinetic energy and the amount of water. Also by this flow, the ball surface attached dirt can be peeled off. When these filths are peeled off, the cleaning water is supplied to the rim water supply channel 243 at a high flow velocity and energy as described above, so that high filth peeling ability can be exhibited.

  As mentioned above, although the form in which the present invention is implemented was explained, the present invention is not limited to such an example at all, and it is needless to say that the present invention can be carried out in various modes without departing from the gist of the present invention. is there.

  For example, in the above embodiment, a low tank type tank connected to the toilet bowl is used as the wash water tank. However, a tank other than the low tank type tank, for example, a toilet bowl connected to the toilet bowl through a washing pipe and installed on a toilet wall, etc. A cornered tank or a flat tank may be used. In this case, it is possible to install a washing water tank at a high position to make a high tank.

  Moreover, although the case where this invention was applied to the siphon-jet type toilet bowl 10 was demonstrated as an example, it can also be grasped | ascertained as invention combined with said toilet bowl and another apparatus and member. For example, sanitary washing devices combined with functional toilet seats that realize various functions such as local washing and heating, toilet kit devices combined with storage cabinets and hand-washing devices, wall materials, floor materials and ceiling materials as toilet room structures It can also be applied to a system toilet apparatus that combines the above.

  Moreover, although the air communication hole 47 for venting the air from the lower inflow portion 41b is provided on the side of the raised portion, it can be provided at an appropriate location on the top of the raised portion or the branching partition wall 41c.

  The flush toilet of the present invention can be used as a flush toilet in hotels, public facilities as well as ordinary households.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic perspective view showing a siphon-jet toilet bowl 10 according to an embodiment of the present invention, together with a state of washing water ejection employed therein. It is explanatory drawing for demonstrating the main parts of this toilet bowl, showing the relationship with a flow path. It is explanatory drawing which fractures | ruptures and shows a part of the upper surface of the toilet bowl. It is explanatory drawing which shows the schematic longitudinal cross-section which fractured | ruptured the toilet bowl along 4-4 bending line in FIG. It is explanatory drawing which shows the schematic cross section fractured | ruptured along the 5-5 bending line in FIG. It is a schematic enlarged view of the principal part X of FIG. It is explanatory drawing for demonstrating the mode of the washing | cleaning water flow by the flow dividing partition wall 41c and the flow dividing adjustment member 50. FIG. It is explanatory drawing explaining the type | mold structure used for the shaping | molding of the ball | bowl part 10a among the toilet bowls. It is explanatory drawing which fractures | ruptures and shows the upper surface of 10 A of toilet bowls of a modification.

Explanation of symbols

10 ... Siphon Zet type toilet (toilet)
10a ... Ball part 10b ... Body lower part 10c ... Water supply channel shielding part 10A ... Toilet bowl 20 ... Ball part 21 ... Rim part 22 ... Zet spout 23 ... Water-covering surface 24 ... Exposed surface 24a ... Guide recess 25 ... Discharge port 26 ... Recess 31 ... Connection path 32 ... Ascending path 31 ... Connection path 32 ... Ascending path 33 ... Ascending path 40 ... Washing water supply hole 41a ... Upper inflow part 41b ... Lower inflow part 41c ... Split flow partition wall 41d ... Partition wall opening 41e ... Split flow Partition wall edge 41f ... Weir 41 ... Inflow portion 41sr, 41sl ... Left and right inner side walls 42 ... Opening 43 ... Raised portion 43a ... Inclined side surface 43b ... Side wall 44 ... Rim outlet 45 ... Zet water supply hole 46 ... Zet water supply channel 47 ... Air Communication hole 50 ... Shunt adjustment member 51 ... Engagement piece 70 ... Drain socket 100 ... Upper mold 101 ... Lower mold 101a ... Convex part 101b ... Convex protrusion part 200 ... Raised part 243 ... Rim water supply channel 44A～244e ... through holes 310 ... washing water tank

Claims (1)

A rim spout that ejects cleaning water from the tank that stores the cleaning water as new cleaning water in a substantially horizontal direction along the upper edge of the ball surface, and a jet outlet that ejects the cleaning water toward the trap outlet In the siphon-zette flush toilet which drains the water stored in the toilet bowl part from the trap together with the filth, a guide recess formed in a groove shape in a substantially horizontal direction communicates with the rim outlet. The rim shot washing water ejected from the rim ejection port swirls in a substantially horizontal direction along the guide recess , and the amount of ejection water from the jet ejection port is larger than the amount of ejection water from the rim ejection port. A flush toilet characterized by that.