JP2009007922A - Flush toilet flushing method and flush toilet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that, because a urinal and a toilet bowl of a conventional toilet have no function of flushing away stains of urine drops on top end faces of peripheral walls of bowls of the urinal and the toilet, a floor surface is stained with the urine drops flowing down on outer faces of the peripheral walls and the stains must be removed by washing manually. <P>SOLUTION: Each peripheral wall of the bowls of the urinal and the toilet is divided into an upper peripheral wall and a lower peripheral wall by a clearance penetrating the peripheral wall slantly downward from the outer face to the inner face. Preferably, an overflow port opened upward at the top end face of the peripheral wall of the upper section and a conduit internally communicating with the overflow port are provided as part of a flushing system for feeding flushing water to the bowl section. Flushing water fed to the conduit is made to overflow from the overflow port to the inside and/or the outside of the peripheral wall to flush the top end face, and the flushing water flowing down from the top end face on the outer peripheral wall face of the upper peripheral wall or urine drops flowing down on the outer peripheral wall face when the conduit and the overflow port are not provided are guided into the bowl or an drain system through a water collecting passage composed of the clearance positioned immediately below the outer peripheral section of the top end face or positioned inside the outer peripheral section and opened at the top end of the lower peripheral wall, and are discharged together with other flushing water. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a flush toilet cleaning system, and more particularly to a flush system having a function of cleaning dirt on an upper end surface of a ball portion peripheral wall of a flush toilet including a urinal and a toilet.

  The conventional flush toilet flushing system has a function of flushing the inner surface of the ball portion opening upward in the urinal and the inner surface of the urine receiving surface portion standing upright from the rear portion thereof, and the inner surface of the ball portion in the toilet bowl with water, respectively. Many inventions and devices related to this have been proposed as follows, but it does not have a function to clean the upper end surface of the peripheral wall of the ball part that is subject to contamination by urine droplets scattered during urination. It is normal.

  As a means of flushing urine scattered on the side of the toilet bowl and the floor of the foot, it consists of a foot tray and washing water pipes connected to the main toilet and the lower front side of the main toilet. At the lower end, a water basin is formed that leads to the inside of the main toilet. The foot tray has a drain hole connected to the drain of the main toilet and a grid-like tread on the upper surface. There has been proposed a male toilet that is configured to be able to supply water to the upper part of the toilet bowl and the inner periphery of the foot tray. (See Patent Document 1)

  As a urinal that can efficiently wash urine that has fallen outside the urinal body, when installing a stall-type flush urinal on a concrete structure, a bowl-shaped body having a drain pipe and a trap is first installed. A ball part of the urinal body is installed with a gap inside the bowl-like body through an annular packing disposed in the edge of the tub body to form a double structure, and a first control unit for controlling the washing water for washing the urinal body An inner surface of the bowl and an outer surface of the bottom of the urinal body by providing control means and second control means for controlling washing water for washing the inside of the bowl and the outer surface of the bottom of the urinal body A configuration has been proposed that can be cleaned. (See Patent Document 2)

  In the stall-type flush toilet, the rim of the sag receptacle is intended to reduce the amount of urine adhering to the upper surface of the rim of the sag receptacle, that is, the edge of the peripheral wall, and to reduce the manual cleaning effort of the urinal. There is also a proposal to make the width dimension of the urine smaller than the rims on both side walls of the urine receiving surface of the urinal body. (See Patent Document 3)

  In addition, in the ball part of the flush toilet, the rim water channel at the front part of the ball part where urine is liable to urine during boys' use is removed to widen the ball part opening by the width, while the ball surface of that part In order to prevent contamination due to urine, a configuration has also been proposed in which cleaning water is discharged from the rim conduit discharge port that terminates at both sides of the ball portion to the front drying surface for cleaning. (See Patent Document 4)

  Provided with a rim with the upper end portion of the ball portion peripheral wall drawn inward, and a cleaning water swirl path that swirls around the ball portion circumferential surface with the peripheral wall portion below the retracted portion exposed from the water storage surface in the ball portion as a shelf A flush toilet that has been formed to improve the toilet cleaning function has also been proposed. (See Patent Document 5)

  There is an attempt to clean not only the inner surface of the toilet bowl but also the outer surface including the edge, and the ball section of the flush toilet that has been fixed up to now is stored upright and contains a washing water nozzle, a drying unit, and a drain trap. If it is pivotably attached to the cabinet and rotated from the horizontal protruding position to the upright storage position after use, the cleaning water from the cleaning water nozzle is not only the inner surface of the ball unit, but also the edge of the ball unit, the outer surface, A configuration has been proposed in which the toilet seat is cleaned, the waste in the ball portion is discharged to a drain trap, and the cleaning surface is dried by a drying unit after the cleaning is completed. (See Patent Document 6)

  There is also a method aimed at preventing dirt from adhering by performing water repellent treatment on the entire surface of the cleaning surface, but if water repellent treatment is performed on the entire surface of the cleaning surface, for example, in the case of a toilet, it is from a small hole in the water passage of the rim. The cleaning water that has come out does not diffuse across the entire cleaning surface and flows down as it is, leaving a non-cleaning area where cleaning water is not supplied, so that the cleaning surface is polymerized by siloxane crosslinking and crosslinking other than siloxane. By providing a plurality of water-repellent areas with a silicone coating formed with a substance containing silicone, with a gap, the flow of the cleaning water flows along the remaining non-water-repellent areas by making the entire cleaning surface not a water-repellent area. It has been proposed to reduce the proportion of parts that are diffused and not cleaned. (See Patent Document 7)

  Similarly, as a configuration for supplying cleaning water to the entire surface of the cleaning surface, by providing a spreader that sprays the cleaning water toward the cleaning surface in a spray form, not only the direction in which the cleaning water falls due to gravity, but also in an oblique direction, and There is a configuration in which it is possible to prevent unevenness in the cleaning power by flowing down while diffusing in the lateral direction. (See Patent Document 8)

  In general, when a ceramic toilet is used for a long period of time, the toilet bowl surface is gradually hydrophobized and the hydrophobized area increases. For this reason, the washing water flow path gradually narrows and flows only in a certain place. As a countermeasure against this, a flush toilet has been proposed in which a plurality of water outlets are formed, and washing water is discharged from the previous water outlet in a plurality of directions. (See Patent Document 9)

  This is not intended for the upper end surface of the peripheral wall of the ball part, but in a water-based product having a cleaning surface that is cleaned with cleaning water after use, the cleaning surface is effectively cleaned with a small amount of cleaning water. It has been proposed to provide a large number of spray holes with a pitch of 2 cm or less for discharging cleaning water downward from the water passage in the rim portion at the upper end of the peripheral wall toward the inner surface of the peripheral wall. (See Patent Document 10)

  As a cleaning method suitable for surface treatment to make it easier to remove dirt and other dirt adhering to the ball surface of flush toilets, it was recessed into a groove shape in the horizontal direction along the upper edge of the ball surface. The rim shot cleaning water discharged into the guide recess swirls in a substantially horizontal direction along the upper edge of the ball surface while being guided by the guide recess, and becomes a flow branched in various places from the swiveling main flow along the exposed surface. There are also proposals that make it easier to communicate. (See Patent Document 11)

  Furthermore, as a measure for improving the cleaning function for the peripheral wall surface of the ball part by changing the structure of the peripheral wall of the ball part in the flush toilet, flush water is discharged along the inner wall surface of the toilet bowl directly facing the toilet bowl, The main wash water is formed so that the wash water does not jump out of the toilet bowl and flows around the inner wall surface of the toilet bowl, and the split wash water separated from the main wash water is further divided into the inner surface of the toilet bowl. There has been proposed a cleaning method for guiding all the cleaning water to the drainage channel inlet after guiding it to reach the whole. (See Patent Document 12)

  Recently, many researches and proposals on hydrophilicity and its applications have been found from the viewpoint that surface hydrophilicity is a major factor in preventing dirt on the surface of objects or preventing dirt. A composition having a photocatalytic function is highly hydrophilized by photoexcitation and exhibits a high hydrophilicity with a contact angle with water of 10 ° or less, more specifically 5 ° or less. This is called superhydrophilicity. A composite material having such a highly hydrophilic surface and a method for producing the same are shown. (See Patent Document 13)

  And, by making the surface of the mirror and lens highly hydrophilic, as a technology that imparts anti-fogging properties, prevents surface contamination, makes the surface self-cleanable, or facilitates artificial cleaning, A method of making a surface of glass or the like superhydrophilic with a photocatalyst has been proposed. (See Patent Document 14)

  By applying these photocatalytic technologies to the surface cleaning of flush toilets, it is also attempted to prevent the adhesion of dirt by making the surface of at least the ball part of the flush toilet toilet hydrophilic so that the adhered dirt can be easily washed. Has been made. (See Patent Document 15)

  There has also been proposed a composition that maintains good hydrophilicity for a long time even under weak illumination in a room or even in a dark place when it is hydrophilized in response to photoexcitation of a photocatalyst. (See Patent Document 16)

  On the other hand, under weak lighting in the room, it takes time to make the photocatalyst hydrophilic by photoexcitation, so the contact angle with water on the surface increases with the passage of time. A proposal to further improve the cleaning effect of alkaline water by putting a surfactant in alkaline water used as cleaning water, covering the surface of the composite material without fouling the surface of the component and improving the compatibility of alkaline water It has also been. (See Patent Document 17)

  The surface hydrophilization with photocatalyst particles is not limited to toilet bowls. The glaze layer on the surface of the base material is used to make the surface of all ceramic products have a hydrophilic property that can exhibit a hydrophilic recovery function even in a room that is hardly exposed to light. Alternatively, it has been proposed to form a layer containing an anisotropic substance such as γ-alumina or boehmite on the printed layer. The hydrophilicity is indicated as a state exhibiting water wettability of 30 ° or less, preferably 10 ° or less, and more preferably 5 ° or less in terms of a contact angle with water. (See Patent Document 18)

  On the other hand, a toilet bowl made of resin is proposed instead of a ceramic one, and the weight of the toilet bowl is greatly reduced and the manufacture thereof is facilitated. A toilet having a surface layer portion containing a photocatalyst and a binder component, wherein the concentration of the photocatalyst in the surface layer portion increases from the inside of the toilet toward the surface, has also been proposed. (See Patent Document 19)

  However, when the toilet bowl is made of resin, on the contrary to the advantages of weight reduction and ease of construction work, there arises a problem that the filth adhering to the resin ball surface becomes difficult to be washed with water and becomes unsanitary. Therefore, a surface layer containing photocatalyst particles is formed on the ball surface of a resin toilet bowl by utilizing the fact that when the photocatalyst is photoexcited in a member having a surface layer containing a photocatalyst, the surface of the member is highly hydrophilic. A resin flush toilet has also been proposed in which the ball surface is made hydrophilic by photoexcitation of a photocatalyst and the ball surface can be easily cleaned. (See Patent Document 20)

  Although not related to the toilet bowl body, there is also a proposal to increase the water repellency of resin-made heated toilet seats including toilet lids and washing nozzles, high crystalline polypropylene resin, polymer material with a critical surface tension of less than 28 dyne / cm and inorganic filling Each member is formed of a composition mainly composed of a material, but proposals have been made to greatly improve water repellency and antifouling properties in the coexistence of the polymer material used with the polypropylene resin and coexistence with the inorganic filler. . (See Patent Document 21)

  There is also a proposal to prevent the generation of bad odor in the toilet by preventing sewage from entering the gap between the toilet bowl and the toilet installation surface. Therefore, a sewage receiving recess is formed on the outer peripheral surface of the front part of the toilet, along the toilet outer surface. A sewage reservoir for collecting the sewage flowing down is installed in the sewage receiving recess. (See Patent Document 22)

JP 2004-316211 A JP-A-11-36420 JP 2002-242274 A Japanese Patent Laid-Open No. 11-256660 JP 2004-11414 A JP 2000-8462 A JP 2000-273934 A JP-A-11-350576 JP 2001-234575 A JP-A-11-350575 JP 2001-132071 A Japanese Patent No. 3381261 Japanese Patent No. 2756474 Japanese Patent No. 2924902 Japanese Patent Laid-Open No. 9-78665 Japanese Patent No. 2865065 JP 2000-279905 A Japanese Unexamined Patent Publication No. 2000-211983 JP 2004-107952 A Japanese Patent Laid-Open No. 9-224874 Japanese Patent Laid-Open No. 9-154772 JP 2002-322718 A

  The stall-type flush urinal described in Patent Document 1 also flows into the flushing basin provided on the side wall of the main urinal and the end wall of the peripheral wall of the drooping receiving section. Although the urine droplets are washed, the urine droplets adhering to the edge surfaces on both sides and the side surfaces following the urine droplets and the function of cleaning dirt on the upper end surface of the ball peripheral wall are not provided.

  Also in the case of Patent Document 2, the peripheral wall of the ball portion serves as a partition between the cleaning water for cleaning the inside of the urinal body and the cleaning water for cleaning the inside of the bowl and the outer surface of the bottom of the urinal body, It does not have a function to clean dirt.

  The stall-type flush urinal described in Patent Document 3 is intended to reduce the artificial cleaning effort of the urinal, and the width dimension of the rim of the drooping receiving portion is set to the both side walls of the urine receiving surface portion of the urinal body. It is a proposal to make it smaller than the rim, but it does not have a function to clean the rim top surface.

  Even in the Western-style toilet described in Patent Document 4, the rim conduit at the front part of the ball part where urine is liable to be applied to a boy's small is removed to widen the ball part opening by the width. There is no function for cleaning dirt on the upper end surface of the peripheral wall.

  In the Western-style toilet described in Patent Document 5, an improvement in the function in the case of cleaning the toilet by jetting cleaning water along the inner wall surface of the upper edge of the ball surface has been proposed. There is no function for cleaning dirt on the end face.

  Only Patent Document 6 proposes a structure for cleaning the entire surface of the inner surface of the bowl portion of the toilet and the outer surface including the upper end of the peripheral wall. In this case, the ball portion can be rotated with respect to the upright storage cabinet and moved into the cabinet. Since the cleaning is performed at the drawing-in position, a waterproof structure is required to prevent the cleaning water from flowing out from the nozzle, which is problematic in terms of manufacturing cost. In addition to the problem of increased costs for drying after washing, it takes time to dry, making it unsuitable for continuous use by the next user and unsuitable for installation in public facilities. is there.

  Patent Document 7 is a proposal for solving the problem of non-cleaning area when the water-repellent treatment is performed on the entire cleaning surface of the product around water, but the object is the inner surface of the ball portion, and the dirt on the upper end surface of the peripheral wall of the ball portion. It does not have the function of cleaning.

  Similarly, Patent Document 8 is configured to supply cleaning water to the entire surface of the cleaning surface, and includes a spreader that sprays the cleaning water toward the cleaning surface in a spray form, so that not only the direction in which the cleaning water falls due to gravity, It is configured to prevent the unevenness of the cleaning power by flowing down while diffusing in an oblique direction and a lateral direction, and does not have a function of cleaning dirt on the upper end surface of the peripheral wall of the ball portion.

According to Patent Document 9, when a ceramic toilet bowl is used over a long period of time, the toilet bowl surface is gradually hydrophobized, the hydrophobized area increases, the wash water flow path gradually narrows, and only a limited place flows. As a countermeasure against this, it is a proposal of a flush toilet in which a plurality of water outlets whose directions are changed are formed and the washing water is discharged in a plurality of directions, and has a function of washing dirt on the upper end surface of the peripheral wall of the ball portion. Absent.

  In Patent Document 10, it has been proposed to provide a large number of water spray holes for effectively discharging a small amount of washing water downward from the water passage in the rim portion at the upper end of the peripheral wall toward the inner surface of the peripheral wall. It does not have the function of cleaning.

  In the case of Patent Document 11 as well, a substantially horizontal swirling water flow is formed on the inner surface along the upper edge of the ball surface and the ball inner surface is cleaned, but the function of cleaning the upper end surface of the ball portion is not achieved.

  Similarly to the above, Patent Document 12 forms cleaning water that circulates along the inner wall surface of the upper edge of the toilet bowl to clean the entire inner surface of the ball, and does not perform the cleaning of the upper end surface of the ball portion.

  Patent Documents 13 and 14 suggest the flush toilet in terms of making the substrate surface superhydrophilic and preventing soiling, but these documents simply prevent the condensation on a smooth surface, It relates to a transparent substrate and a method for producing the same, and is not directly related to a toilet.

  Patent Documents 15 to 21 are all hydrophilized by photoexcitation technology of the photocatalyst on the inner surface of the ball part of a ceramic or resin flush toilet, and can prevent and clean the upper end surface of the peripheral wall of the ball part. Not what you want.

  In the case of Patent Document 22, although it is possible to prevent sewage from reaching the toilet installation surface, it is only possible to make a bad smell by actively making the outer peripheral surface of the toilet flow down and collecting the sewage in the storage container. Absent.

  In any of the above-mentioned patent documents, the structural improvement intended to improve the cleaning efficiency for the inner surface of the ball part, the prevention of dirt from adhering to the inner surface of the ball part, or the repellency for facilitating the cleaning of the attached dirt. It is a variety of devices for imparting aqueous or hydrophilic properties, and the antifouling effect due to water repellency or hydrophilicity is only fully exhibited by washing with water. In that sense, the washing water is placed outside the ball or toilet. There has not yet been proposed a proposal that can automatically clean the upper end surface of the peripheral wall without spilling or splashing. In addition, there has not yet been proposed a proposal that prevents urine droplets from staying on the upper end surface of the peripheral wall and allows the urine droplets flowing on the outer peripheral surface of the peripheral wall to be collected in the ball section or in the drainage system.

The present invention is intended to solve the problem of such a conventional configuration, and in a flush toilet including both a urinal and a urinal, the upper end surface of the peripheral wall of the ball portion adheres to urine droplets scattered during urination. It is an object of the present invention to provide a cleaning method capable of preventing the contamination of the upper end surface with high efficiency even when it is contaminated.
In addition, the structure allows urine droplets to flow down naturally and quickly and reliably without supplying cleaning water to the upper end surface, and at least minimizes contamination of the upper end surface of the ball portion, thereby preventing the toilet mounting floor from being contaminated. The purpose is to provide a flush toilet with sewage.

  In order to achieve the above object, as a first means for solving the problems, the present invention provides a cleaning system for supplying cleaning water to the entire inner surface including the ball portion of a urinal and a flush toilet having a urinal, and concentrated in the ball portion. In a flush toilet flushing system comprising a drainage system that drains the washed water through a drain outlet at the bottom and a trap continuous to the outside of the drainage outlet, the cleaning system is along the upper end of the peripheral wall surrounding the opening of the ball part The overflow water channel includes an extended water channel and an overflow port that communicates with the interior of the water channel in the entire length of the water channel and opens to the surface of the entire length of the upper end, and the wash water supplied to the water channel overflows from the overflow port. Forming a water film flow for cleaning the top surface, and the drainage system includes the inner peripheral wall and / or the outer peripheral wall of the upper end part that allows the overflow water film flow to flow down from the upper end surface following the overflow port. The outer peripheral wall included in the system is at least water-permeable Characterized in that it comprises a yield waterway leading to more open along the entire length of the overflow opening by being pulled inwardly under accommodate water film flow flowing down the outer peripheral wall and the drain port or trap.

  As a second problem solving means, a material having hydrophilicity is used in at least the surface portion of the outer peripheral wall of the upper end portion included in the drainage system.

  As a third problem solving means, the outer peripheral wall of the upper end part included in the drainage system is formed of a base material and a photocatalytic film bonded to the surface of the base material, and is formed of a composite material that exhibits hydrophilicity in response to photoexcitation. It is characterized by.

  As a fourth problem solving means, the overflow port is characterized by continuously opening in the length direction of the upper end portion of the ball portion.

  As a fifth problem-solving means, the overflow port comprises a plurality of holes or slits provided at intervals in the length direction of the upper end portion of the ball portion.

  As a sixth problem-solving means, the overflow port comprises a plurality of V-shaped grooves that are continuous with each other at both upper ends in the length direction of the ball upper end portion and communicate with the water passage at the bottom portion.

  As a seventh problem-solving means, the upper end portion of the ball portion peripheral wall includes an outer peripheral portion on the outside of the overflow port and an inner peripheral portion on the inner side, and the water passage in the upper end portion and the overflow port on the upper surface of the upper end portion are The slant road communicates with the inner surface of the inner peripheral portion from the lower part toward the overflow port side by an obliquely upward slant, and the slant part is inclined obliquely downward to supply cleaning water to the inner surface of the peripheral wall through the lower part of the inner peripheral part in the middle. It includes a ramp.

  As an eighth problem-solving means, the water collecting channel is provided so as to penetrate the ball portion peripheral wall, and the water film flow accommodated from the outer peripheral wall surface is guided to the drain outlet through the ball portion inner surface.

  As a ninth problem solving means, the water collecting channel extends to the outer wall of the trap along the outer surface of the ball portion peripheral wall and the bottom wall, and guides the stored water film flow to the trap through the trap opening provided in the trap outer wall. It is characterized by that.

  As a tenth problem solving means, the overflow port is provided along a ridge line on the surface of the upper end portion of the ball portion.

  As an eleventh problem solving means, the overflow port is located at the center in the width direction of the upper end.

  As a twelfth problem solving means, the ridge line is located at a position along the outer peripheral wall surface of the upper end portion, and the side edge of the overflow groove is raised on the outside to form an overflow stopper.

  As a thirteenth problem solving means, the ridge line is located along the inner peripheral wall surface of the upper end portion, and the side edge of the overflow groove is raised on the inner side to form an overflow stopper.

  As a fourteenth problem-solving means, the water passage is provided in a separate mounting upper end portion that covers the upper end portion of the peripheral wall of the toilet and is detachable, and the overflow port has a higher outer portion corresponding to the outer peripheral surface of the peripheral wall. It opens to the outer side part of the upper surface of the attachment upper end part which inclines in the direction.

  As a fifteenth problem solving means, a water passage is provided in a separate mounting upper end that covers the upper end of the peripheral wall of the toilet and is detachable, and an overflow port is provided in the center in the width direction of the mounting upper end, Is provided through the upper end of the attachment in the lower part of the water passage.

  As a sixteenth problem-solving means, a water passage is provided in a separate mounting upper end mounted on the upper surface of the upper end of the bowl portion peripheral wall of the toilet bowl, and the drainage system is connected to the inner peripheral wall surface of the mounting upper end. The inner peripheral wall surface that includes both the outer peripheral wall surfaces and hangs down from the inner upper surface of the mounting upper end portion via the curved surface and is spaced from the top of the inner peripheral surface of the ball peripheral wall of the toilet bowl is defined as the lower end of the inner peripheral wall surface, The outer peripheral wall surface that continues from the outer upper surface of the mounting upper end through the curved surface is connected to the lower end of the inner peripheral wall through the inward retracting portion and the inclined bottom surface that slopes downward, and the water collecting channel is connected to the inclined bottom surface of the mounting upper end and the toilet bowl. It is formed with a space between the upper surface of the upper end surface of the ball portion peripheral wall.

  As a seventeenth problem-solving means, a cleaning system for supplying cleaning water to the entire inner surface including the bowl portion of a flush toilet having a urinal and a toilet bowl, and a drain outlet and a drain outlet at the bottom of the flush water concentrated in the ball section In a flush toilet comprising a drainage system that is continuous outside, a water collecting channel that opens inward and downward substantially over the entire circumference of the peripheral wall is disposed below the upper end surface of the ball portion peripheral wall and substantially parallel to the upper end surface of the ball portion peripheral wall. The urine droplets that scatter on the upper end surface of the ball portion peripheral wall and flow down from the outer peripheral surface of the ball portion during urination can be collected in the ball portion or the drainage system.

  As an eighteenth problem-solving means, a flush-type urinal or a urinal, wherein a urine receiving surface portion is lower in the urinal, and a ball portion that is located in the lower portion of the toilet seat and has an open upper surface in the urinal forms the upper end The upper peripheral wall and the lower peripheral wall rising from the bottom of the ball part, and at the height position where the outer diameter of the upper peripheral wall is smaller than the upper end part of the ball part, the outer peripheral surface of the lower peripheral wall of a part or substantially the entire circumference is the upper peripheral wall The urine that flows down the outer peripheral wall surface of the ball part by forming a water collecting channel by placing a gap with a width that does not prevent the flow of urine droplets flowing down the outer peripheral surface of the upper peripheral wall directly below or inside the outer peripheral surface of the upper end. The droplets can be accommodated in the ball portion.

  As a nineteenth problem-solving means, the peripheral wall forming the upper end of the ball portion forms substantially the entire ball portion, and the drainage system outer peripheral wall forming the drainage system below the ball portion does not interfere with the drainage of the washing water. The side surface is open at the height position, and the drainage system outer peripheral wall surface is arranged with a gap of a width that does not prevent the urine droplets flowing down the outer peripheral wall surface of the ball portion directly below or inside the outer peripheral surface of the upper end of the upper peripheral wall. Thus, a water collecting channel is formed, and urine drops flowing down the outer peripheral wall surface of the ball portion can be accommodated in the drainage system.

  As a twentieth problem solving means, the cleaning system has a water passage extending along the upper end portion of the peripheral wall surrounding the opening of the ball portion, and communicates with the inside of the water passage in the entire length of the water passage so as to have a substantially full length of the upper end portion. The washing water supplied to the water passage forms a water film flow that overflows from the overflow port and cleans the upper end surface, and the drainage system overflows from the upper end surface following the overflow port. It includes the inner peripheral wall and / or outer peripheral wall of the upper end part that allows the water film flow to flow down, and the outer peripheral wall included in the drainage system is drawn inward below at least the water passage to increase the length of the overflow port. A water collecting channel is provided so as to accommodate the water film flow that opens along the outer peripheral wall and leads to the drain port or the trap.

  As a twenty-first problem solving means, the water collecting channel is provided to penetrate from the outer peripheral surface of the mounting upper end portion to the inner periphery in a separate mounting upper end portion that covers the upper end of the peripheral wall of the toilet bowl and is detachable. It is characterized by.

The operation of the first problem solving means is as follows. That is, in the flush toilet, a water passage is extended along the length of the upper end portion of the peripheral wall of the ball portion included in the washing system, and the overflow port communicates with the whole length of the water passage and opens to the surface of the upper end portion. When the wash water is supplied to the water passage, overflow overflows laterally from the full length of the overflow port and flows as a water film on the upper end surface continuous to the overflow port, so that it adheres to the upper end surface. The scattered urine droplets are washed by this water film flow.
The drainage system includes the inner peripheral wall and / or the outer peripheral wall of the upper end part for allowing the overflow water film flow to flow down from the upper end surface following the overflow port. In other words, depending on the shape of the surface of the upper end, either the overflow from the overflow outlet can be flowed to both sides of the peripheral wall or only to one side, but when flowing to the outer peripheral wall, that is, when the outer peripheral wall is included in the drainage system The outer peripheral wall opens at least along the entire length of the overflow port, that is, the entire circumference of the ball portion peripheral wall by being drawn inward at least below the water passage, and accommodates a water film flow flowing down the outer peripheral wall surface, and A water collecting channel leading to a drain outlet or a trap is provided, and the overflow water whose upper end is washed is discharged together with the washing water whose inner surface of the toilet bowl is washed.

  The action of the second problem solving means is that the overflow film flow reliably maintains contact with the wall surface by using a hydrophilic material on the upper surface of the upper end part and at least the outer peripheral wall included in the drainage system. , So as not to scatter away from the peripheral wall.

  The action of the third problem solving means is a composite material which is composed of a base material and a photocatalyst film joined to the surface of the base material on the outer peripheral wall of the drainage system, and exhibits hydrophilicity in response to photoexcitation. By forming it, the outer peripheral wall surface has a hydrophilic recovery function, so that the water film flow flowing down the outer peripheral wall surface that shows hydrophilicity over a long period of time reliably keeps contact with the wall surface and does not scatter under the peripheral wall. Become.

  The action of the fourth problem solving means is that the overflow port is an opening continuous in the length direction of the upper surface of the ball portion peripheral wall, so that if the upper end portion of the ball portion is substantially horizontal, the overflow will be the entire length of the overflow port. Over average.

  The action of the fifth problem solving means is that the overflow port is a plurality of holes or slits spaced apart from each other in the length direction of the upper surface of the peripheral wall of the ball, so that the upper end of the ball is suspended toward the front end of the receiving part. When it is inclined, the water film flow overflowing from each hole or slit flows between the lower hole or slit along the upper surface of the upper end and is washed. The water film flow that has flowed down along the inner surface of the peripheral wall cleans the inner surface of the ball part, and the water film flow that has flowed down and cleaned along the outer surface is collected in the water collecting channel and discharged together with the cleaning water on the inner surface of the ball part.

  The action of the sixth problem solving means is that the overflow port is composed of a plurality of V-shaped grooves which are continuous with each other at both upper ends in the length direction of the upper end portion of the ball portion peripheral wall and communicate with the water passage at the bottom portion. When the upper end is inclined toward the front end of the droop receiving part, the washing water does not flow down as a rapid flow through the inclined water passage, but overflows one after another through a continuous V-shaped groove. It flows along the mouth and mainly cleans the upper surface of the peripheral wall while flowing into the adjacent lower V-shaped groove, and a part flows along the inner and outer surfaces of the peripheral wall to clean them.

  The action of the seventh problem solving means is that the communication between the water passage and the overflow port is not directly in the upper end portion of the peripheral wall of the ball portion, but via the sloping road that causes the water flowing from the water passage to collide with the inner surface of the overflow port once. In addition, by providing a diversion road that diverts a part of the running water of the ramp to the inner surface of the ball part, the water pressure of the wash water sent from the water passage to the overflow port is suppressed, and water is prevented from spouting from the overflow port. In addition, it is easy to generate a water film flow due to gentle overflow, and urine droplets that fall into the overflow port during urination are discharged into the ball portion with washing water.

  The action of the eighth problem solving means is that the water collecting channel is provided through the peripheral wall of the ball portion, and the water film flow accommodated from the outer peripheral wall surface is guided to the drainage port through the inner surface of the ball portion. The cleaning water separated from the inside into the outside merges at the inner surface of the ball part and is drained after enhancing the inner surface cleaning effect.

  The action of the ninth problem solving means is that the water collecting channel extends along the outer surface of the ball portion peripheral wall and the bottom wall to the outer wall of the trap, and the trapped water film flow is trapped through the trap opening provided on the outer wall of the trap. Therefore, the wash water divided from the overflow port into the inside and outside flows to the trap as a separate stream.

  The action of the tenth problem solving means is that the overflow port is provided along the ridge line of the upper surface of the upper end of the ball portion peripheral wall, that is, the highest level line, so that the wash water overflows on the upper surface of the upper end on both sides of the overflow port. A water film flow is formed along the inner and outer peripheral surfaces.

  The action of the eleventh problem solving means is that the overflow port is located at the center in the width direction of the upper end of the ball portion, so that a ridge is formed on the upper surface of the upper end on both the inside and outside of the overflow port, and the width of the full water level of the overflow port is Between the ridges on both sides, the width of catching scattered urine drops with water can be expanded.

  The action of the twelfth problem solving means is that the ridge line is located along the outer peripheral wall surface of the upper end part, and the side edge on the outer side of the overflow port is raised to prevent overflow, so that the overflow is from the inner side edge of the overflow port. Only occurs toward the inner wall.

  The action of the thirteenth problem solving means is that the ridge line is located along the inner peripheral wall surface of the upper end portion, and the side edge on the inner side of the overflow port is raised to prevent overflow, so the overflow is the side edge on the outer side of the overflow port. Only those that go to the outer peripheral wall surface.

  The effect of the fourteenth problem-solving means is that a water passage is provided in a separate mounting upper end that covers the upper end of the peripheral wall of the toilet and is detachable, and the overflow port is raised at the outer portion corresponding to the outer peripheral surface of the peripheral wall. The present invention is applied to an attachment type that is used by being attached to the gap between the upper end of the bowl portion of an existing toilet bowl, and the toilet seat, by providing an opening in the outer portion of the upper surface of the upper end portion of the attachment that is inclined inward. Is applicable.

  The action of the fifteenth problem solving means is that the water passage is provided in a separate mounting upper end portion that covers the upper end portion of the peripheral wall of the toilet and is detachable, and the overflow port is provided in the center in the width direction of the mounting upper end portion, Since the upper end of the attachment is provided in the lower part of the water collecting channel, the present invention can be applied to an existing flush toilet, in particular, an attachment type used by being attached to the upper end of the ball portion of the urinal.

  The action of the sixteenth problem solving means is that the water passage is provided in a separate mounting upper end portion placed on the upper surface of the upper end portion of the peripheral wall of the toilet bowl with an interval, and the drainage system has an inner portion of the mounting upper end portion. Both the peripheral wall surface and the outer peripheral wall surface are included, and the inner peripheral wall surface that continues from the inner upper surface of the mounting upper end portion via the curved surface hangs down and is positioned at a position spaced from the top of the inner peripheral surface of the peripheral wall of the toilet bowl. The outer peripheral wall surface that is connected to the lower end of the wall surface through the curved surface from the outer upper surface of the upper end of the mounting is connected to the lower end of the inner peripheral wall through the inwardly retracted portion and the inclined bottom surface that is inclined downward, and Since it is formed at a distance between the bottom surface and the upper surface of the upper end of the peripheral wall of the bowl part of the toilet bowl, the present invention is attached to the upper end part of the bowl part of the flush toilet including the existing toilet and urinal. Applicable. In particular, in the case of a toilet bowl, the manufacturer may attach the water passage at the upper end of the attachment to the water supply part of the toilet bowl, and the toilet seat and the toilet lid may be installed thereafter.

The operation of the seventeenth problem solving means is as follows. That is, in the flush toilet including the urinal and toilet according to the present means, the upper end portion of the ball portion does not have the water passage and the overflow port, and therefore the cleaning action of the upper end surface by the overflow water film flow does not occur. 1 is different from the problem solving means of 1, but the configuration by the outer peripheral surface that causes the urine droplets scattered on the upper end surface of the ball portion peripheral wall to flow down along the surface and the water collecting channel that guides the flowing urine droplets to the ball portion or the drainage system is Prepare in common and act in common.

  The action of the eighteenth problem solving means is the same as that of the seventeenth problem solving means, in the structure that does not cause the cleaning action by the overflow water film flow, the lower part raised from the bottom and bottom of the upper peripheral wall forming the upper end of the ball part At the height position where the outer diameter of the upper peripheral wall is smaller than the upper end of the ball part, the lower peripheral wall outer surface of a part or substantially the entire circumference is directly below or inside the upper peripheral surface of the upper peripheral wall. By placing the urine droplets on the upper peripheral wall, the falling urine droplets scattered during urination are captured by the upper end surface of the upper peripheral wall and do not reach the lower peripheral wall. Further, by arranging a lower peripheral wall with a gap that does not hinder the flow of urine droplets flowing down the outer peripheral surface of the upper peripheral wall, the urine droplets flowing down the outer peripheral surface of the upper peripheral wall are reliably guided into the water collecting channel.

  The action of the nineteenth problem solving means is that the entire ball portion is formed by a peripheral wall including the upper end of the ball portion, while an opening is provided in the side surface of the drainage system at the bottom of the ball portion to accommodate urine drops flowing down from the outer peripheral surface of the upper end of the ball portion. The water collecting channel is configured by a gap between the drainage system outer peripheral wall surface and the ball part peripheral wall outer surface, which is provided from a position immediately below the ball part upper end outer peripheral surface or the ball part inner side to the drainage system side surface opening. Accordingly, the water collecting channel is not formed as a gap crossing the ball portion peripheral wall inward and outward, but as a gap along the outer surface of the ball portion peripheral wall.

  The action of the twentieth problem solving means is the action when the construction that generates the overflow water film flow is used in the category of the seventeenth problem solving means, and therefore substantially the same action as the case of the first problem solving means. Fulfilled.

  The action of the twenty-first problem solving means is that the water collecting channel is provided through the inner surface from the outer surface of the separate mounting upper end portion that covers the upper end portion of the bowl portion of the toilet bowl and is detachable. It can be used as an attachment type that is attached to the upper end of the unit.

According to the present invention, a flush toilet comprising a flushing system that supplies flush water to a bowl portion of a flush toilet including a urinal and a toilet bowl, and a drainage system that drains flush water from the ball portion via a drain outlet and a trap. Since the cleaning system has a water passage that extends along the upper end of the peripheral wall surrounding the opening of the ball portion, and a water overflow opening that communicates with the water passage and opens along the upper surface of the upper end. The cleaning water supplied to the water flows from the overflow port as a water film for cleaning the upper surface of the upper end. By this water film flow, the upper end surface of the peripheral wall of the ball portion that has not been cleaned conventionally is automatically cleaned during the operation of the cleaning system. The overflow film flow can be done either by flowing the upper end surface of the peripheral wall toward the inside of the toilet, or flowing outward, or both, but when flowing outward, The water film flow that flows to the outside flows along the outer peripheral wall surface, cleans the outer peripheral wall surface, and then is collected in a water collecting channel that opens downward inward over the entire circumference of the peripheral wall substantially parallel to the upper end surface of the peripheral wall. Or since it is made to flow into a trap, a water film flow does not scatter from a wall surface apart from an outer peripheral wall surface. Preferably, hydrophilicity is imparted from the upper end surface to the outer peripheral wall surface, and the curved surface included in the outer peripheral wall has a gently continuous curvature, and the water film flows down while maintaining its contact with the outer peripheral wall surface and washing it. So that it does not get wet around the toilet bowl.
Further, even when a water channel and an overflow port are not provided and a water film flow is not used, the configuration of the peripheral wall surface and the water collecting channel from the upper end surface of the ball portion according to the present invention acts on the scattered urine droplets in exactly the same way, and the same effect Is shown.

  Hereinafter, several embodiments of the present invention will be described with reference to FIGS.

  As a first embodiment according to the present invention, FIG. 2 and FIG. 2 showing an enlarged portion surrounded by an alternate long and short dash line show a cleaning method in a flush toilet. In the figure, a flush urinal 1 is generally a ball portion including a receiving surface portion 2 standing on the front surface of a user for receiving urine, a main body portion connected to the lower portion thereof, and a drooping receiving portion protruding toward the user. 3 and so on. A water supply part 15 connected to an external water supply pipe (not shown) is provided at the top of the receiving surface part 2, and a drain port 12 is provided at the lowest part of the ball part 3, and a trap 13 and an external sewage pipe (not shown) are provided. The drain pipe including the discharge port 14 connected to the drain port 12 is connected to the drain port 12, and the inner surfaces of the receiving surface portion 2 and the ball portion 3 are cleaned by the cleaning water distributed from the water supply portion 15 by an electromagnetic valve device (not shown), The wash water after washing is drained from the drain port 12.

  The remarkable feature of the first embodiment is the structure of the peripheral wall 4 that surrounds the hanging portion of the ball portion 3, particularly here, and the peripheral wall 4 does not have a conventional upper end portion 5 that does not have an inwardly extending rim portion. including. The upper end portion 5 has an overflow opening 6 that opens upward at substantially the center in the width direction and extends over substantially the entire length of the upper end portion 5, and the inside of the upper end portion 5 is hollowed to make the inside of the upper end portion 5 hollow. A water passage 7 formed in communication with the lower end of the mouth 6, an outer peripheral wall 5 b continuously descending in a curved manner on the mountain-shaped upper surface half part 5 a outside the overflow mouth 6, and a curved surface drawn inward with a slightly larger curvature Inclined bottom surface 5d that slopes downward toward the inner surface of the peripheral wall through the drawn-in part 5c and that forms a bottom wall of the water passage 7 and a mountain-shaped upper surface half portion 5e inside the overflow port 6 continuously in a curved surface. It is comprised by the inner peripheral wall 5f couple | bonded with the inner lower end of 5d. A peripheral wall end 4a having a slope substantially parallel to the inclined bottom surface 5d is positioned at a distance from the inclined bottom surface 5d of the upper end portion 5, and the lower end of the peripheral wall 4 is connected to the bottom wall 11 of the ball portion 3 via a curved surface. It is continuous. The space between the inclined bottom surface 5d and the peripheral wall end 4a forms a water collecting channel 9 having the upper end portion of the peripheral wall end portion 4a as the water collecting opening 8 and the lower end portion as the water collecting outlet 10. The outer surface penetrates and communicates with the inner surface, that is, the inside of the ball portion 3. Since the water collecting channel 9 is provided along the length of the overflow port 6, that is, substantially over the entire length of the upper end portion 5, the ball portion 3 is divided into two vertically by the water collecting channel 9. In this case, the upper end portion 5 constituting the upper portion is held in a cantilever form by the main body portion of the urinal, so that a reinforcing material is incorporated if necessary. Alternatively, the peripheral wall 4 and the upper end portion 5 may be integrated by a plurality of columns or walls (not shown) spaced in the circumferential direction of the water collecting channel 9.

  Here, the peripheral wall 4 includes an upper end portion 5 that does not have a conventional inwardly extending rim portion, but an upper end portion having a rim portion, an upper end portion to which swirling water is supplied to the inner surface of the rim portion, or It is also possible to combine the above-described configuration of the present invention with an upper end portion that allows water to flow from the water passage provided in the rim portion to the inner surface of the ball portion. In that case, the rim portion can be provided on either the upper side of the water collecting passage 9, that is, between the water passage 7 and the inclined bottom surface 5d, or on the lower side, that is, on the upper end portion of the peripheral wall end portion 4a.

  Washing water supplied from one water supply portion 15 at the top of the receiving surface portion 2 to one end or both ends of the water passage 7 through a water passage provided inside the side wall of the receiving surface portion 2, for example, passes over both side edges of the overflow port 6. Overflowing. In this case, if the overflow port 6 is set to the center in the width direction of the upper surface of the upper end portion 5 and the inner and outer upper surface halves 5a and 5e are provided symmetrically, overflow also occurs equally on the inside and outside of the peripheral wall.

  Here, in this embodiment, at least the outer upper half of the ball portion 3 and the surface of the outer peripheral wall are coated with a hydrophilic material having a critical surface tension of 20 dyne / cm or more, preferably 40 dyne / cm or more, more preferably photocatalyst particles. By containing it, it is formed of a hydrophilic material having a critical surface tension of 20 dyne / cm or more, preferably 40 dyne / cm or more. Therefore, the washing water overflowing from the overflow port 6 spreads in close contact with the upper end surface with the surface of the upper end of the peripheral wall, flows as a thin water film on the upper end surface, and the scattered urine droplets adhere to this. Is easily peeled off and washed, and flows down to the outer peripheral wall together with dirt.

  The use of a hydrophilic surface material is generally to prevent dirt from adhering to the surface of the ball portion and facilitate cleaning and purification of the surface. In the present invention, the outer upper surface half portion 5a is further used. The overflow water flow that descends through the curved surface and flows down the outer peripheral wall 5b maintains close contact with the wall surface due to the hydrophilicity of the outer peripheral wall 5b even during the change in the flow direction, and separates from the wall surface and around the toilet This is also to prevent splashing.

  In the illustrated example, the surface shape of the outer surface of the peripheral wall consisting of the outer peripheral wall 5b and the lead-in portion 5c continuous with the curved surface together with the upper end surface of the peripheral wall 4 is sufficient for the water film flow from the upper end surface to maintain contact with the outer peripheral wall surface. It is formed as a continuous curved surface with gentleness. It is desirable that the continuous curved surface change slowly even when the curvature changes. In any case, the flow is determined by the surface tension and flow rate of the falling water film flow, and the critical surface tension of the outer wall surface material. The contact angle between the water film flow tip and the outer peripheral wall surface needs to be maintained at an angle of 90 degrees or less, close to 0 degrees, that is, an acute angle. In particular, in the part that is drawn inward from the outer peripheral wall surface, the combined vector of the vector in the direction in which the tip of the water film flows along the outer peripheral wall surface and the gravity vector of the water film itself exceeds the gravity vector. Set the direction of curvature and curvature. As a result, the water film flow is separated from the outer peripheral surface of the upper end portion and flows into the water collecting channel 9 without falling, so that the outer surface of the outer peripheral wall 5b of the upper end portion 5 and the outer surface of the peripheral wall end portion 4a below the same are arranged on the same surface. it can. That is, the peripheral wall end 4a that forms the lower edge of the water collection opening 8 of the water collection channel 9 can be in a state where it does not protrude outward from the outer peripheral wall surface of the upper end when viewed from above, and is contaminated by scattered urine droplets. To prevent that.

  Further, the outer peripheral wall 5b may be a vertical surface, a bulging curved surface, an outward or an inwardly inclined surface over the height corresponding to the depth of the water passage 7 inside, but in either case, The outer peripheral wall portion that becomes the upper edge of the opening 8 is a portion that is drawn inward with a curvature that maintains the above contact angle, and even if the water film flow is peeled off from the outer peripheral wall surface at this portion, it has already fallen. It falls to the inclined surface inside the peripheral wall end 4a.

  In the flush toilet 1 of the first embodiment configured as described above, for example, a human body detection switch (not shown) provided on the front surface of the water supply unit 15 detects the separation of the user, and the water supply electromagnetic valve is activated to supply water. When the water is supplied to the part 15 or the water stored in the water supply part 15 is distributed, a part of the water becomes cleaning water that diffuses over the entire surface of the receiving surface part 2, and the other part is a water passage through the water supply path 16. 7, overflows from the overflow port 6 and becomes wash water for washing the inner and outer surfaces of the entire length of the ball peripheral wall 4.

  At the lower end of the water supply channel 16, the same structure as the trap 13, that is, the upper half of the storage tank is divided into a supply side and a discharge side by a hanging partition plate, and the height of the outer wall on the discharge side is set to the opening of the overflow port 6. It is possible to place a water level control means that allows water exceeding this outer wall to be sent to the overflow groove 6 or a means that acts in the same manner. You may use the solenoid valve to supply. The washing water supply to the water passage 7 can be performed only from one end in the longitudinal direction of the water passage 7 or from both ends. However, in order to economically obtain uniform overflow over the entire length of the overflow groove, Water supply from is desirable.

  Of the wash water overflowing from both the inner and outer edges of the overflow port 6, the wash water overflowing inward flows as a water film covering the upper surface of the inner upper surface half part 5 e having a semicircular cross section, and the inner peripheral surface of this upper surface The surface of the inner peripheral wall 5f that continues substantially perpendicularly flows down, is washed, and falls from the lower end of the inner peripheral wall 5f to the inner surface of the peripheral wall 4 and the bottom wall 11 connected thereto. Since it is not a problem that the water flowing inwardly scatters on the inner surface of the ball, the inner upper surface half 5e and the inner peripheral wall 5f do not need to be hydrophilic. It is desirable not to make a portion where water scatters away from the wall surface at the upper part of the inner peripheral wall 5f by forming a gentle curved surface similar to the outside.

  The washing water overflowing to the outside of the overflow port 6 flows along the outer upper surface half 5a having a semicircular cross section in the same manner as a water film due to its hydrophilicity, and continues with a gently curved surface 5b It flows down along the lead-in portion 5 c and enters the water collecting channel 10, and is carried to the inner surface of the ball portion peripheral wall and the bottom wall 11. Thus, the wash water that has washed the outer surface of the upper end portion of the peripheral wall that forms part of the drainage system of the flush toilet according to the present invention merges with the wash water that has washed the inner surface of the upper end portion in the ball portion 3 in the same manner. Then, the gas is discharged from the discharge port 14 through the trap 13.

  FIG. 3 shows another configuration inside the upper end portion of the ball portion peripheral wall as the second embodiment. Here, as the water pressure rises in the water passage 7 defined on the oblique bottom surface 5d of the upper end portion 5 by the partition wall, the water flow a exiting from the outlet of the partition wall tip located at the lower portion of the outer upper surface half portion 5a is directed obliquely upward. The water flow b collides with the inner surface of the inner upper surface half 5e through the oblique path, reflects upward, and overflows from the overflow port 6 along both upper surface halves 5a and 5e. Further, a part of the water flow a from the outlet of the partition wall is divided into a diversion path 6a that passes through the lower part of the inner upper surface half part 5e obliquely downward and to the lower part of the inner peripheral wall 5f. Therefore, the diversion d joins the water film flow flowing down the inner peripheral wall 5f and the water film flow flowing down the outer peripheral wall 5b and collected in the water collecting passage 9, and participates in the cleaning of the inner surface of the ball portion.

  According to this embodiment, the washing water supplied to the water passage 7 is not directly sent to the overflow port 6, but flows out to the ramp, partially flows in the ramp, and collides with the wall surface to suppress the water pressure. Since it is sent to the overflow port after it is done, it is prevented from being ejected from the overflow port. In that sense, by forming the outer upper surface half part 5a and the inner upper surface half part 5e on both sides of the overflow port 6 as a mountain shape, the water reservoir layer that has an approximately Y-shaped opening portion of the overflow port 6 spreads left and right. Is formed, which is useful for preventing contamination of the upper surface and preventing ejection. In addition, when urine droplets scattered during urination fall into the overflow port 6, the water film can reach the dividing slope 6 a located immediately below the overflow port 6, but is washed by the diversion d and flows down the inner peripheral wall 5 f. The water flows down the outer peripheral wall 5b and merges with the water film flow collected in the water collecting channel 9 and flows to the inner surface of the ball portion.

  FIG. 4 shows a third embodiment of the flush toilet according to the present invention. In the figure, the same components as those in the first embodiment are denoted by the same reference numerals. The overflow port 6 and the water passage 7 at the upper end portion 5 of the ball portion peripheral wall have substantially the same configuration as that of the first embodiment, but the difference from the first embodiment is that the inner wall of the peripheral wall 4 is formed by a water collecting channel below the upper end portion 5. The outer surface is not communicated, and the peripheral wall and the bottom wall of the ball part continuous to the lower part are made into a double structure, and the water collecting channel is led to the trap. Therefore, the inner peripheral wall 5f of the upper end portion 5 is suspended and formed continuously with the bottom wall 11 of the ball portion 3, and the outer peripheral wall 4b surrounding the outer side is spaced from the inner peripheral wall 5f and the outer surface of the bottom wall 11. The water collecting passage covering 4c extending downward and reaching the lower portion of the trap passage 13a provided on the outer wall of the trap 13 is formed, thereby forming a water collecting opening 8 facing the drawing portion that continues to the outer peripheral wall of the upper end portion. A water collecting passage 9 extending to the trap passage 13a is formed. Accordingly, the cleaning water that has cleaned the outer surface of the upper end of the peripheral wall does not pass through the inner surface of the ball part 3 but is accommodated in the trap 13 via the outer surface of the ball part 3, and the inner surface of the receiving surface part 2 and the ball part 3 is cleaned. The washing water guided to 12 merges in the trap 13 and is discharged.

  Although not shown in the cross-sectional view of FIG. 4, the double structure of the peripheral wall and the bottom wall of the above-described ball portion 23 has a water passage 7 with an overflow port at the upper end portion 5 in the case of a stall-type flush toilet. The ball portion 23 is provided on the entire surface of the droop receiving portion, and the inner and outer walls are relatively thin. Therefore, as countermeasures against external shocks, a reinforcing material is embedded in the outer wall or between the inner and outer walls. The partition wall of the up-down direction which couple | bonds can be provided in multiple places.

  FIG. 5 shows a fourth embodiment in which the present invention is applied to a flush toilet. In the figure, the same constituent members as those in the first embodiment are indicated by adding 20 to the same reference numerals. The toilet bowl shown in this embodiment is of a Western-type flush type, and is a type in which a thin water tank is attached to the rear part of the ball part 23 as the water supply part 35, but the washing method according to the present invention is also applicable to other types of water tank attachments. There is no structural change.

  Similar to the cleaning water for the receiving surface in the first and third embodiments relating to the urinal, a main cleaning water discharge section 38 is provided at the upper part of the hanging wall 39 toward the drain port 32 at the rear part of the ball part 23, and the main cleaning water is provided. Falls along the drooping wall 39 to a reservoir portion following the drain port 32. Water discharged from the discharge channel 40 that communicates with the main cleaning water discharge unit 38 and flows into the reservoir flows into the reservoir, pushes up the water and excrement in the reservoir to the trap 33 on the back side of the drooping wall 39, and discharges through the trap wall. Lead to 34.

  The peripheral wall 24 of the ball portion 23 that surrounds the drainage port 32 and is coupled to the rear hanging wall 39 and the upper main cleaning water discharge portion 38 has the same configuration as the peripheral wall 4 of the first embodiment. That is, in the case of a Western-style toilet, the upper end portion 25 of the peripheral wall that is installed substantially horizontally and has a semicircular upper surface in cross section has an overflow port 26 that extends over the entire length at the center of the upper surface and extends over the entire length of the upper end portion. Provided with a water passage 27, the outer peripheral wall outside the overflow port 26 is drawn inward of the wall surface by a gradual curved surface maintaining a dynamic contact angle of 90 degrees or less to form an oblique bottom wall, The lower end is joined to the lower end of the inner peripheral wall 25f that hangs substantially vertically inside the overflow port 26 to form the water collection opening 28, the water collection channel 29, and the water collection outlet 30 at a distance from the outer surface of the oblique bottom wall. A peripheral wall end 24a is provided. The lower end of the peripheral wall end portion 24 a is continuous with the bottom wall 31 of the ball portion 23.

  The washing water supplied from the water supply unit 35 to the water passage 27 via the water level control means 36 overflows from the overflow port 26 to the inner peripheral surface and the outer peripheral surface of the peripheral wall upper end 25 to form a water film flow, and the upper end The upper surface is cleaned and each surface is cleaned while flowing along the inner and outer surfaces of the peripheral wall 24. The cleaning water that has cleaned the outer surface enters the ball portion 23 through the water collecting passage 29, and the cleaning water that cleans the inner surface of the ball portion. It joins, is led to the drain port 32, and is discharged together with the main washing water from the main washing water discharge part 38.

  The toilet seat used for the Western flush toilet is used without any trouble with the flush toilet cleaning system according to the present invention. As in the conventional case, the toilet seat 37 shown in FIG. 5 has a cushion member straddling the overflow port 26 and is spaced from the upper surface of the upper end 25, so that the toilet seat is located on the upper surface of the upper end due to overflow. Does not interfere with cleaning. However, if the skirt portion 37a that covers the outer peripheral surface of the ball upper end portion 25 is provided at the front end of the toilet seat, that is, the edge facing the front portion of the ball portion, the clothes of the user are prevented from getting wet.

  In this Example 4, the drainage system is configured to have the same peripheral wall penetration type water collecting channel as in Example 1 or 2, but it can also be of the same double structure type as in Example 3, In this case, the trap outlet may be provided under the water outlet 40. In addition, when the peripheral wall penetration type water collecting channel is applied to the Western-style toilet, the ball portion 23 is longer than the hanging portion of the urinal, and the user sits on the ball portion. The cantilever structure with respect to the upper end portion 25 separated from the peripheral wall 24a by the water collecting channel 29 needs to be able to withstand a considerable load. For example, a configuration in which a rigid arm that passes through the inside of the upper end 25 from a skeleton body that surrounds the water supply unit 35 and the trap 33 at the rear of the toilet bowl may be one measure, but as another measure, it may be placed at a plurality of locations all around the water collection channel. It is also possible to connect the peripheral wall end 24a and the upper end 25 with a support column or partition wall.

  FIG. 6 shows a stall-type flush toilet similar to Example 1 as Example 5, but the present invention is applied when the peripheral wall upper end 5 of the hanging portion of the ball part 3 is inclined toward the protruding front end. An example is shown. In the figure, the water passage 7 is provided in a narrow tubular form inside the inclined upper end 5, and the overflow port 6 a is provided in the form of a plurality of holes or slits spaced in the length direction of the upper end 5. In the case of slits, each slit may extend either in the length direction of the upper end portion or in the width direction of the upper end portion. The water collecting channel 9 of the water film flow that has flowed to the outside of the peripheral wall 4 is substantially the same peripheral wall penetration type as in the first embodiment.

  FIG. 7 shows another embodiment of the overflow port 6b at the inclined upper end portion 5 of the fifth embodiment. In this case, it is assumed that the overflow port 6 b is a plurality of V-shaped grooves that are continuous in a stepped manner in the length direction of the upper end portion 5 and in contact with both side ends, and the bottom portion thereof communicates with the tubular water passage 7. The washing water that has flowed out of the water passage 7 into the V-shaped groove 6b flows to the lower V-shaped groove one after another, and partly overflows on both sides to wash the upper surface of the upper end.

  FIG. 8 shows another configuration of the peripheral wall of the ball portion used in the flush toilet cleaning system according to the present invention as the sixth embodiment. In the drawing, the upper end portion 5 of the peripheral wall 4 of the ball portion 3 of the urinal or urinal is formed in a cross-sectional shape with the ridge line positioned along the outer peripheral surface of the peripheral wall. The surface side becomes lower. Since the overflow port 6 is provided close to the outer peripheral surface and the side edge on the outer peripheral surface side is formed high, the overflow from the overflow port 6 occurs only at the side edge on the inner peripheral surface side. Since the outer surface of the peripheral wall 4 is formed of the hydrophilic material described in the first embodiment, the overflow from the overflow port 6 forms a water film flow having a close contact relationship with the upper surface of the upper end portion 5 of the peripheral wall. And thoroughly clean the inner surface.

  In the embodiment 7 of FIG. 9, the upper end portion 5 of the peripheral wall of the ball portion has a ridge line at a position along the inner peripheral surface, and a wide opening of the water passage 7 having a V-shaped cross section serves as an overflow port 6. The side edge 7a on the outer side of the water passage 7 is provided lower than the inner side edge 7b. Therefore, since the overflow film flow is generated only on the outer peripheral surface, the water collecting channel 9 is formed by providing the outer peripheral wall 4a at the lower portion of the outer peripheral surface of the peripheral wall. If the water passage 7 is provided with a plurality of water passage holes 7c that allow water to flow from the bottom to the inner surface of the peripheral wall, the inner surface of the peripheral wall can be cleaned.

  In the eighth embodiment shown in a partially cut end view in FIG. 10, the present invention is applied to an attachment type that is detachable to an existing flush toilet. The mounting upper end M1 having a substantially horseshoe shape as a whole inserted into the gap between the upper surface of the upper end R of the ball peripheral wall of the conventional rim type and the lower surface of the toilet seat 60 is configured with the features of the present invention. The inside of the inner wall is hollow and has a water passage 57, and the ridge line is positioned on the outer portion along the outer surface of the upper end R, and the upper surface 55 that inclines from the outer portion toward the inner surface faces the overflow port 56 along the ridge line. And the outside of the overflow port 56 is raised to form the overflow stopper 55a. The water passage 57 receives the water of the washing water through a communication member with a water supply portion (not shown) provided in the toilet or by taking water into the water passage inside the upper end R. The overflow from the overflow port 56 is washed down by using the upper surface 55 of the mounting upper end portion M1 inclined inward as a water film, and falls to the inner surface side of the peripheral wall of the ball portion. The mounting upper end M1 includes an outer wall leg 58 and an inner wall leg 59 that hang from the outer side and the inner side. The outer wall leg 58 and the inner wall leg 59 sandwich the head of the upper end R, cover it, and cover the mounting upper end. The part M1 is detachably attached to the upper end part of the ball part of the toilet bowl. The portion corresponding to the cushion leg (not shown) that creates a gap between the toilet seat 60 and the upper end R of the peripheral wall is provided with a notch, and the overflow is closed and only the partial water passage is left. Communicate. If the attachment upper end M1 is for a flush toilet, such a notch is not necessary.

  The mounting upper end M1 of the eighth embodiment has a ridge line, that is, an overflow opening, in order to make it thin in consideration of the limited space between the upper surface of the upper end of the ball portion and the lower surface of the toilet seat in the flush toilet. The line is along the outer surface of the ball peripheral wall, and the overflow water film flow is generated only toward the inner side of the ball part, but the inclination angle of the water collecting channel for the water film flow from the outer surface is somewhat Needless to say, even if it is to be sacrificed, it is possible to adopt a configuration in which the ridgeline is approximately in the center, the overflow is generated on both the inner and outer sides, and the overflow film flow to the outer surface is collected by the collecting channel.

  In the ninth embodiment of FIG. 11, the present invention is applied to an attachment type that is detachable with respect to the upper end portion of the ball portion in the drooping receiving portion of the existing stall-type flush toilet, and as a whole, the cross section has a substantially inverted U shape. It is formed and placed on the upper end of the ball portion of the urinal. In this case, a so-called rimless type is shown as the ball portion upper end portion R, and the mounting upper end portion M2 having the features of the present invention is provided in the approximate center of the upper surface 65, and an overflow port 66 for generating overflow on both the inner and outer sides, It has a water passage 67 provided in communication with the overflow port 66 and a water collection passage 69 for guiding the outer water film flow caused by the overflow to the outside to the inner surface of the ball portion. Accordingly, the overflow port 66 is formed with the outer upper surface half 65a and the inner upper surface half 65e substantially symmetrically on both sides thereof, and at least the surface portion of the outer peripheral wall 65b following the outer upper surface half 65a is formed of a hydrophilic surface material. A curved surface continues to the lead-in portion 65 c and reaches the water collection opening 68. The water film flow from the outer peripheral wall 65 b accommodated in the water collection opening 68 flows through the water collection channel 69 and flows through the water collection outlet 70 to the inner surface of the ball portion. The lower part of the water collecting channel 69 includes an outer wall leg 71 and an inner wall leg 72, and the mounting upper end M2 is placed across the ball part upper end R with these both legs. In the top view, for example, the inner peripheral wall 65f is extended at one end of the attachment upper end M2 having a shape corresponding to a V-shaped urinal drooping receiving portion, a water intake arm communicating with the water passage 67 is formed, and the receiving surface portion side wall flows down. A part of the washing water is taken and supplied to the water passage 67.

  Although FIG. 11 shows the attachment upper end portion M2 attached to the upper end portion of the substantially horizontal ball portion of the existing flush toilet, the attachment upper end portion adapted to the slanted droop receiving portion in FIG. 6 can also be used. In that case, the overflow port may have the shape of the hole in FIG. 6 or the slit in FIG.

  In addition, if the mounting upper end portions M1 and M2 of Examples 8 and 9 are made of flexible resin and can be deformed to some extent, it is possible to follow the difference in the shape of the existing upper end portion of the ball portion. Sex is obtained.

  FIG. 12 shows, as Example 10, an attachment-type mounting upper end M3 that is suitable for being simply placed and used instead of being detachable from the upper end of a substantially horizontal ball portion of an existing flush toilet. The mounting mold mounting upper end M3 has an overflow port 76 at substantially the center in the width direction of the upper surface 75, and overflows flush water from the water passage 77 in both the outer and inner upper surface half portions 75a and 75e. 9 has substantially the same configuration as that of FIG. 9, and the overflow to the outside flows from the outer peripheral wall 75b formed of the hydrophilic surface material along the inclined bottom surface 75d inclined inward and downward through the lead-in portion 75c. The overflow to the inside flows down along the substantially vertical inner peripheral wall 75f, merges with the overflow from the inclined bottom surface 75d, and falls to the inside of the upper end portion R of the ball portion. The mounting-type mounting upper end M3 includes legs 78 made of columns or walls extending beyond the height position of the lower end of the inner peripheral wall 75f at a plurality of positions spaced in the circumferential direction of the inclined bottom surface 75d. If the leg 78 is brought into contact with the upper surface of the toilet upper end R and the mounting upper end M3 is placed, a space as a water collecting channel is provided between the upper surface and the oblique bottom surface 75d of the mounting upper end M3.

  Next, with reference to FIGS. 13 to 21, another embodiment of the present invention will be described in which a water passage having an overflow port is not provided, and thus cleaning by a water film flow is not performed.

FIG. 13 shows a urinal 1 similar to the flush urinal of the first embodiment shown in FIG. 1, except that the urinal 1 of the present embodiment is different in that the upper end portion of the peripheral wall surrounding the opening of the ball portion 3 is formed. Since the upper end portion 5 does not have the overflow port 6 and the water passage 7, the water passage 16 from the water supply portion 15 to the water passage 7 is also omitted. The other parts are the same as those in the first embodiment, and are denoted by the same reference numerals. The same part includes a water collecting channel 9 that plays an important role in the present embodiment, and a detailed description of FIG. 2 relating to the configuration of the water collecting channel formed between the ball peripheral wall 4 and the upper end 5 thereof. However, in FIG. 13, the water collecting channel 9 is formed between the upper peripheral wall 500 that forms the upper end of the ball portion and the lower peripheral wall 400 that rises from the bottom of the ball portion.
In short, in the eleventh embodiment having no overflow port, urine droplets flowing from the uppermost surface of the upper peripheral wall 500 to the outer peripheral surface are not dropped onto the floor, and can be reliably passed through the water collection opening 8 as described later. This is a realization of a configuration in which urine droplets are guided to the water collecting channel 9 and are accommodated in the ball portion 3 from the water collecting outlet 10. For this purpose, the cross-sectional shape of the upper peripheral wall 500 and the positional relationship between the outer peripheral wall 5b and the water collecting opening 8 or the outer end of the lower peripheral wall 400 are important. Three specific embodiments thereof are shown in FIGS.

  FIG. 14 shows a typical embodiment, in which the upper peripheral wall 500 has a chevron upper surface with the highest portion positioned substantially at the center in the width direction. The outer slope is connected to an inclined bottom surface 5d that forms the upper surface of the water collecting channel 9 through an outer peripheral wall 5b and a lead-in portion 5c that are continuous with curved surfaces. The inner slope of the upper surface of the chevron is continuous with the substantially straight inner peripheral wall 5f, and merges with the inner lower end of the oblique bottom 5d at its lower end. Desirably, hydrophilicity is imparted from the outer slope to the retracting portion 5c as described in the first embodiment. Moreover, the continuous outer peripheral wall 5b and the drawing-in portion 5c are not connected with a curvature radius that changes extremely, and urine droplets that spread thinly and flow down the outer peripheral wall surface are not separated. Therefore, the urine droplets attached to the outer slope of the upper surface of the mountain shape become a thin water film, reach the outer peripheral wall 5b, and further flow down along the retracted portion 5c, and are reliably accommodated in the water collecting channel 9 and guided into the ball portion. Urine droplets attached to the inner slope flow along the slope to the inner peripheral wall 5f and are accommodated in the ball portion. Other configurations, operations, and effects of this embodiment are as described in detail with reference to FIGS.

  In the embodiment of FIG. 15, the upper surface of the upper end portion is provided as an inclined surface having the upper end of the inner peripheral wall 5f as the apex and descending toward the outer peripheral wall 5b. The configuration from the outer peripheral wall 5b to the water collecting channel 9 is the same as that in the embodiment of FIG. Accordingly, the urine droplets that have fallen on the upper surface of the upper end portion, which is an outwardly inclined surface, flow down to the outer peripheral wall 5 b and are carried into the ball portion via the water collecting channel 9.

  In the embodiment of FIG. 16, the upper surface of the upper end is provided as an inclined surface that rises substantially perpendicularly to the outer peripheral wall 5b, has an appropriate height position as a vertex, and descends toward the inner inner peripheral wall 5f. The configuration from the upper peripheral wall outer peripheral surface 5b to the water collecting passage 9 is the same as that of the embodiment of FIG. Accordingly, the urine drop that has fallen on the upper surface of the upper end surface that is an inwardly inclined surface flows down to the inner peripheral wall 5f and is accommodated in the ball portion. The urine droplets attached to the rising portion of the outer peripheral wall 5b flow down along the outer peripheral wall surface, flow into the drawing-in portion 5c, and are carried into the ball portion through the water collecting channel 9.

  In addition, in FIGS. 14-16 of above-described embodiment, although the upper peripheral wall 500 was illustrated as a hollow body, it is not limited to a hollow body. On the other hand, for example, in a flush toilet, a load on the human body is applied to this portion. Therefore, in order to support the upper peripheral wall 500 separated from the peripheral wall 4 by the water collecting channel 9, an arm of the cantilever structure is attached from the toilet main body. It can also be passed through the upper end.

  Example 12 shown in FIG. 17 relates to a flush urinal similar to the flush urinal of Example 5 shown in FIG. 6. This urinal differs from that of Example 5 in that the peripheral wall surrounding the opening of the ball portion 3 The upper peripheral wall 500 that forms the upper end of each of the above is not provided with the water passage 7 and the overflow port 6a. The difference from the eleventh embodiment is that in the eleventh embodiment, the upper peripheral wall 500 and the lower peripheral wall 400 are substantially vertically moved. In the present Example 12, the lower end of the outer peripheral surface of the upper peripheral wall is disposed on the inner side of the ball portion than the inner peripheral surface of the lower peripheral wall and below the upper end surface of the lower peripheral wall. The upper edge of the lower peripheral wall 400 that defines the water collection opening 8 of the water collection channel 9 is on the inner side of the ball part from the position directly below the outer peripheral wall 5b, and preferably flows down along the outer peripheral wall 5b imparted with hydrophilicity. At the same time that the urine droplets are securely contained, the lower peripheral wall Since the upper end portion of 400 does not protrude forward from the outer peripheral wall 5b, the dropped urine droplets scattered during urination are captured by the upper end surface of the upper peripheral wall, and the lower peripheral wall is not contaminated. Further, by arranging a lower peripheral wall 400 with a gap that does not hinder the flow of urine droplets flowing down the outer peripheral wall 5b, the urine droplets flowing down the upper peripheral wall outer surface are surely guided into the water collection channel, and the user feels uncomfortable. Don't give.

  A gap having a width that does not prevent the flow of urine droplets flowing down the outer peripheral surface of the upper peripheral wall below the inner peripheral surface of the lower peripheral wall from the inner peripheral surface of the lower peripheral wall and below the upper end surface of the lower peripheral wall. Opening and placement is significant when applied to flush toilets. In particular, when urinating while sitting on a flush toilet having a conventional structure, the urination hits the inner peripheral surface of the ball part in the front part of the front toilet as viewed from the user, and a part of the urine is between the upper end surface of the ball part and the lower surface of the toilet seat. It flows from the gap to the outer peripheral surface, and the outer peripheral surface and the toilet floor are contaminated. Even with the arrangement of the peripheral wall of this embodiment, the urine droplets leaking from the gap between the toilet seat and the upper peripheral wall cannot be prevented from flowing down to the outer peripheral surface of the peripheral wall. Contamination of the floor is prevented because it is housed in the department or in the drainage system. Further, when viewed from the inside of the toilet, the inner peripheral wall 5f covers the lower peripheral wall upper end surface and the water collection outlet 10 from the inner side, so that urination at the sitting position does not flow backward through the water collection channel 9.

  FIG. 18 shows another water collection channel configuration similar to the water collection channel configuration in Example 12 of FIG. In this case, the substantially plate-like upper peripheral wall 500 is in a vertical positional relationship with the lower peripheral wall 400 as in the eleventh embodiment of FIG. 13, but the upper peripheral wall 500 is formed as a flat or gently curved convex curved surface, It is installed so that the lower end 5g of the upper peripheral wall is located on the upper end surface of the lower peripheral wall. Therefore, the lower peripheral wall upper end 4d located at the water collection opening 8 is almost directly below the outer peripheral wall surface 5b of the upper peripheral wall 500, and even if the urine drops are peeled off from the outer peripheral wall having a gently curved surface, the urine drops are collected. It will be captured on the slope of the waterway 9. This configuration can be used for both urinals and urinals.

  Example 14 of FIG. 19 relates to a flush urinal similar to the flush urinal of Example 3 of FIG. 4. This urinal differs from that of Example 3 in that the peripheral wall surrounding the opening of the ball portion 3 is The upper peripheral wall 500 forming the upper end portion does not include the water passage 7 and the overflow port 6a, and therefore the peripheral wall is not washed by the overflow water film flow. A water collecting channel having a double structure of an outer wall by a drainage system outer peripheral wall surface 4b having a side surface opened at a height that does not hinder the drainage of washing water, and an inner wall by an upper peripheral wall 500 and a ball part bottom wall 11 The floor is not soiled in that it is securely accommodated at 9 and transported to the trap passage 13a, and the actions and effects are exactly the same.

  Example 15 of FIG. 20 relates to a flush toilet similar to the flush toilet of Example 4 of FIG. 5, and this toilet is different from that of Example 4 in that the upper end portion 25 of the peripheral wall of the ball portion is overflowed. 26 and the water passage 27 are not provided, and therefore, the upper end 25 is not washed by the overflow water film flow. Instead of the water film flow, the urine droplets flowing down the outer peripheral wall of the upper end portion are reliably collected. It is exactly the same in that it is housed in 29 and collected in the ball section so that the floor is not soiled.

  Through all the embodiments 1 to 15 described above, the material constituting the flush toilet or the mounting upper end portion having the features of the present invention may be any one of pottery, synthetic resin, and metal, but the ball portion peripheral wall also in any material The portion from the overflow port at least of the upper end of the upper end or from the top end of the upper end to the water collection opening through the outer peripheral wall is subjected to surface processing to provide the desired hydrophilicity or the desired hydrophilicity. It is desirable to use what has been applied.

  As described above, the flush toilet equipped with the washing method according to the present invention includes the urinal and the toilet bowl, and the upper end portion of the peripheral wall of the ball portion, which is conventionally not washed with flush washing water and accumulates dirt every time it is used. After use, it can be washed automatically without the need for manual cleaning, so it can be used not only for general households but also as a flush toilet in all kinds of public facilities. The utility value in reducing human cleaning work is extremely high. Even if the amount of the cleaning water used is viewed, the economic efficiency is maintained because it can be the same as or less than the conventional inner surface cleaning water by passing water through the rim of the ball portion. In addition, the structure that can store the urine droplets flowing down the outer peripheral wall in the ball part or the drainage system without using washing water greatly improves the cleaning performance around the toilet bowl.

The longitudinal cross-sectional view of the flush toilet which shows Example 1 of this invention Partial enlarged sectional view of the upper end of the ball portion surrounded by the alternate long and short dash line in the flush toilet of FIG. Partial expanded sectional drawing of the ball part upper end part of the flush toilet which shows Example 2 of this invention The longitudinal cross-sectional view which abbreviate | omitted a part of flush toilet which shows Example 3 of this invention The longitudinal cross-sectional view of the flush toilet which shows Example 4 of this invention Partial sectional view of a flush toilet showing Example 5 of the present invention The fragmentary sectional view which shows other embodiment of the overflow port in Example 5 of FIG. Partial sectional drawing of the ball part upper end part of the flush toilet or the toilet bowl which shows Example 6 of this invention Partial sectional drawing of the ball part upper end part of the flush toilet or the toilet bowl which shows Example 7 of this invention The fragmentary sectional view of the attachment upper end part which was detachably attached to the ball part upper end part of the flush toilet which shows Example 8 of this invention The fragmentary sectional view of the attachment upper end part attached to the ball part upper end part of the flush urinal which shows Example 9 of this invention so that attachment or detachment was possible. The fragmentary sectional view of the attachment upper end part attached so that it could be mounted in the ball part upper end part of the flush toilet which shows Example 10 of this invention The longitudinal cross-sectional view of the flush toilet which shows Example 11 of this invention The fragmentary sectional view which shows 1st Embodiment of the ball | bowl part upper end part of Example 11 of this invention Partial sectional drawing which shows 2nd Embodiment of the ball | bowl part upper end part of Example 11 of this invention The fragmentary sectional view which shows 3rd Embodiment of the ball | bowl part upper end part of Example 11 of this invention Partial sectional view of a flush toilet showing Example 12 of the present invention Partial sectional view of a flush toilet showing Example 13 of the present invention The longitudinal cross-sectional view which abbreviate | omitted a part of flush toilet which shows Example 14 of this invention Vertical section of flush toilet showing Example 15 of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Flush toilet 2 Receiving surface part 3 Ball | bowl part 4 Circumferential wall 4a Circumferential wall end part 4b Outer peripheral peripheral wall 4c Water collecting channel covering 4d Lower peripheral wall upper end 5 Upper end part 5a Outer upper surface half part 5b Outer peripheral wall surface 5c Retraction part 5d Inclined bottom face 5e 5f Inner peripheral wall 5g Lower end of upper peripheral wall 6 Overflow port 7 Water passage 8 Water collection opening 9 Water collection channel 10 Water collection outlet 11 Bottom wall 12 Drainage port 13 Trap 14 Drainage port 15 Water supply unit 16 Water supply channel 21 Flush toilet 23 Ball unit 24 Peripheral wall 24a Peripheral wall end portion 25 Upper end portion 26 Overflow port 27 Water passage 28 Water collection opening 29 Water collection passage 30 Water collection outlet 31 Bottom wall 32 Drainage port 33 Trap 34 Drainage port 35 Water supply portion 36 Water level control means 37 Toilet seat 37a Skirt portion 38 Main Washing water discharge part 39 Hanging wall 40 Water discharge path 7a Outer side edge 7b Inner side edge 7c Water flow hole M1 Mounting upper end part 55 Upper surface 5 5a Overflow stop 56 Overflow port 57 Water channel 58 Outer wall leg 59 Inner wall leg 60 Toilet seat R Upper end M2 Mounting upper end 65 Upper surface 65a Outer upper surface half 65b Outer wall 65c Retraction part
65d Bottom wall 65e Inner upper surface half 65f Inner peripheral wall 66 Overflow port 67 Water passage 68 Water collection opening 69 Water collection channel 70 Water collection outlet 71 Outer wall leg 72 Inner wall leg R Upper end M3 Mounting type mounting upper end 75 Upper surface 75a Outer upper upper half 75b outer wall
75c Pull-in part 75d Slope bottom surface 75e Inner upper surface half part 75f Inner peripheral wall 76 Overflow port 77 Water passage 78 Leg part 400 Lower peripheral wall 500 Upper peripheral wall

Claims (21)

A cleaning system that supplies cleaning water to the entire inner surface including the bowl of the urinal and toilet bowl that includes the urinal, and a trap that continues the cleaning water concentrated in the ball to the outside of the drain and the drain In the flush toilet cleaning system consisting of the drainage system discharged through
The cleaning system has a water passage extending along the upper end of the peripheral wall surrounding the opening of the ball portion, and an overflow opening that communicates with the inside of the water passage in the entire length of the water passage and opens to the surface of the entire upper end. The cleaning water supplied to the water channel overflows from the overflow port and forms a water film flow that cleans the top surface.
The drainage system includes the inner peripheral wall and / or the outer peripheral wall of the upper end part that allows the overflow film flow to flow down from the upper end surface following the overflow port, and the outer peripheral wall included in the drainage system is at least below the water passage. A flush toilet flushing system comprising a water collecting path that opens along the entire length of the overflow port by being drawn in and accommodates a water film flow that flows down the outer peripheral wall and leads to a drain port or a trap.   The flush toilet flushing system according to claim 1, wherein the outer peripheral wall of the upper end portion included in the drainage system is formed of a hydrophilic material at least on the surface.   The outer peripheral wall of the upper end part included in the drainage system is made of a base material and a photocatalytic film bonded to the surface of the base material, and is formed of a composite material that exhibits hydrophilicity in response to photoexcitation. The flush toilet cleaning method described.   The flush toilet flushing system according to claim 1 or 2, wherein the overflow opening opens continuously in the length direction of the upper end portion of the ball portion.   The flush toilet flushing system according to claim 1 or 2, wherein the overflow port comprises a plurality of holes or slits provided at intervals in the length direction of the upper end portion of the ball portion.   3. The flush toilet flushing system according to claim 1 or 2, wherein the overflow port comprises a plurality of V-shaped grooves that are continuous with each other at both upper ends in the length direction of the upper end portion of the ball portion and communicate with the water passage at the bottom portion.   The upper end of the peripheral wall of the ball part includes an outer peripheral part on the outer side of the overflow port and an inner peripheral part on the inner side, and the water passage in the upper end part and the overflow port on the upper surface of the upper end part are overflowed from the lower part of the outer peripheral part to the inner peripheral part. The slant road communicates with a sloping road inclined obliquely upward toward the inner surface on the side, and the sloping road includes a slanting slanting slanting slant that supplies cleaning water to the inner surface of the peripheral wall through the lower portion of the inner peripheral portion in the middle. The flush toilet cleaning system according to any one of claims 1 to 6.   8. A flush toilet according to any one of claims 1 to 7, wherein the water collecting passage is provided so as to penetrate the peripheral wall of the ball portion, and the water film flow accommodated from the outer peripheral wall is guided to the drain through the inner surface of the ball portion. Cleaning method.   2. The water collecting channel is extended to the outer wall of the trap along the outer surface of the ball portion peripheral wall and the bottom wall, and the stored water film flow is guided to the trap through a trap opening provided in the outer wall of the trap. To flush toilet bowl cleaning method according to any one of 6 to 6.   The flush toilet cleaning system according to any one of claims 1 to 9, wherein the overflow port is provided along a ridge line on the surface of the upper end portion of the ball portion.   The flush toilet flushing method according to claim 10, wherein the overflow port is located at the center of the upper end portion of the ball portion in the width direction.   The flush toilet flushing method according to claim 10, wherein the ridge line is located at a position along the outer peripheral wall surface of the upper end portion, and the side edge of the overflow port is raised on the outer side to form an overflow stopper.   11. The flush toilet flushing system according to claim 10, wherein the ridge line is at a position along the inner peripheral wall surface of the upper end portion, and the side edge of the overflow port is raised on the inner side to form an overflow stopper.   The water passage is provided in a separate mounting upper end that is detachable by covering the upper end of the peripheral wall of the toilet bowl, and the overflow port is provided on the mounting upper end that is inclined inward by raising the outer portion corresponding to the outer peripheral wall surface of the peripheral wall. 2. The flush toilet flushing system according to claim 1, wherein the flush toilet bowl is opened in an outer portion of the upper surface.   The water channel is provided in a separate mounting upper end that covers the upper end of the peripheral wall of the toilet and is detachable, the overflow port is provided in the center in the width direction of the mounting upper end, and the water collecting channel is installed at the lower end of the water channel. The flush toilet flushing system according to claim 1 or 2, wherein the flush toilet bowl washing system is provided so as to penetrate through the section.   The water passage is provided in a separate mounting upper end mounted on the upper surface of the upper wall of the toilet bowl, and the overflow port is provided in the center of the mounting upper end in the width direction. Including both the inner peripheral wall surface and outer peripheral wall surface of the upper end of the mounting, the inner peripheral wall surface that continues from the inner upper surface of the upper end of the mounting via the curved surface is suspended and spaced from the top of the inner peripheral surface of the peripheral wall of the toilet bowl The position is the lower end of the inner peripheral wall surface, the outer peripheral wall surface that continues from the outer upper surface of the upper end of the attachment through the curved surface is joined to the lower end of the inner peripheral wall surface through the retracted part that goes inward and the inclined bottom surface that slopes downward, 3. The flush toilet flushing system according to claim 1 or 2, wherein the flush toilet flushing system is formed with a space between the oblique bottom surface of the upper end of the mounting and the upper surface of the upper end surface of the peripheral wall of the toilet bowl. A cleaning system that supplies cleaning water to the entire inner surface including the ball part of a flush toilet that includes a urinal and a urinal; and a drainage system that continuously discharges the cleaning water concentrated in the ball part from the bottom drainage port and the drainage port. In the flush toilet cleaning system,
A water collecting channel that opens inward and downwards over the entire circumference of the peripheral wall of the ball part is substantially parallel to the upper end surface of the ball part, and is disposed below the upper end face of the ball part peripheral wall. A flush toilet, wherein urine droplets flowing down can be collected in a ball portion or a drainage system.   A flush-type urinal or a urinal, where the urinal is located at the lower part of the urine receiving surface, and the urinal is located at the lower part of the toilet seat and the upper surface is opened from the upper peripheral wall forming the upper end and the bottom of the ball part. At the height position where the outer diameter of the upper peripheral wall is smaller than the upper end of the ball part, the lower peripheral wall outer surface of a part or almost the entire circumference is directly below or directly below the outer peripheral surface of the upper upper end of the upper peripheral wall. A water collecting channel is formed on the inside by a gap having a width that does not hinder the flow of urine drops flowing down the outer peripheral surface of the upper peripheral wall, and the urine drops flowing down the outer peripheral wall surface of the ball part can be accommodated in the ball part. The flush toilet according to claim 17, wherein   The peripheral wall that forms the upper end of the ball part forms substantially the entire ball part, and the outer peripheral wall of the drainage system that forms the drainage system below the ball part opens the side at a height that does not interfere with the drainage of the wash water. The drainage system outer peripheral wall surface is disposed directly below or inside the outer peripheral surface of the upper end of the upper peripheral wall with a gap having a width that does not hinder the flow of urine droplets flowing down the outer peripheral wall surface of the ball portion. The flush toilet according to claim 17, wherein urine drops flowing down the outer peripheral wall surface of the ball part can be accommodated in the drainage system.   The cleaning system includes a water passage extending along the upper end of the peripheral wall surrounding the opening of the ball portion, and an overflow opening that communicates with the inside of the water passage in the entire length of the water passage and opens to the surface of the substantially upper length of the upper end. The wash water supplied to the water channel overflows from the overflow port to form a water film flow that cleans the upper end surface, and the drainage system has an upper end portion that causes the overflow water film flow to flow down from the upper end surface following the overflow port. The outer peripheral wall included in the drainage system opens at least along the entire length of the overflow port and flows down the outer peripheral wall. The flush toilet according to claim 17, wherein a water collecting channel is provided so as to accommodate a water film flow to be conducted and to guide it to a drain outlet or a trap.   18. The water collecting channel is provided in a separate mounting upper end portion that covers the upper end of the peripheral wall of the bowl portion of the toilet bowl and is detachable and extends from the outer peripheral surface to the inner periphery of the mounting upper end portion. Flush toilet.

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