JP5959055B2 - Toilet bowl body and siphon flush toilet equipped with the same - Google Patents

Description

  The present invention relates to a toilet bowl body and a siphon flush toilet equipped with the same.

  Patent document 1 is disclosing the conventional toilet bowl main body. The toilet body includes a toilet bowl portion and a toilet drainage channel communicating with the downstream side of the toilet bowl portion. In addition, the toilet bowl portion is an upper peripheral edge on the right side (right side from the rear side of the toilet body on which the washing tank is placed to the front end), and a first water outlet that discharges washing water in a substantially central portion in the front-rear direction. Have. The first water outlet is open forward. The wash water discharged from the first water discharge port forms a swirling flow that swirls counterclockwise in the toilet bowl in a plan view. Moreover, the toilet bowl part has the 2nd water outlet which discharges washing water to the upper peripheral part of the left rear part. The second water outlet is open to the right. Moreover, the toilet bowl part has the standing surface which extends in the up-down direction on the outer periphery of the water storage surface, and has a steeply inclined surface. In the toilet body, the wash water discharged from the second water discharge port joins the wash water discharged from the first water discharge port, thereby weakening the momentum of the swirling flow and suppressing the spread of the filth. Moreover, this toilet body can push a filth into a toilet drainage channel, and can discharge | emit it satisfactorily from a toilet body, when washing water flows down the standing surface.

JP 2011-157738 A

  However, the toilet body of Patent Document 1 forms a swirl flow by vigorously discharging the wash water from the first water outlet in order to clean the surface of the toilet bowl portion satisfactorily. For this reason, in order to push the sewage into the toilet drainage channel and discharge it from the toilet body well while weakening the momentum of the swirling flow, the washing water must be discharged from the second outlet.

  This invention is made | formed in view of the said conventional situation, Comprising: It is set as the problem which should be solved to provide the toilet bowl main body and siphon type flush toilet bowl which can perform toilet bowl washing | cleaning satisfactorily with little washing water.

The toilet body of the present invention comprises a toilet bowl part,
A toilet drainage channel having an inlet at the bottom of the toilet bowl and communicating downstream;
In a plan view, a first spout for discharging wash water that forms a swirling flow that swirls the toilet bowl in one direction ;
A toilet body with
The toilet bowl is
A guide surface that is formed on the inflow side and above the stored water surface, and in which the downstream side in the swirling flow is inclined more steeply than the upstream side in plan view ;
In a plan view, the guide surface is continuous with the peripheral portion of the water storage surface so that the downstream side in the swirling flow of the upper edge of the guide surface is in contact with the peripheral portion of the water storage surface .

  In the toilet body, the wash water discharged from the first water outlet flows along the guide surface and smoothly flows into the water reservoir. For this reason, since this toilet bowl body can spout wash water from the 1st spout, and the wash water swirls in the toilet bowl part, it can be made to flow to a reservoir part by a guide surface, so that Bundled washing water can flow into the reservoir. In this way, since it is possible to flow a bundle of wash water into the water reservoir while suppressing the decay of the momentum of the wash water discharged from the first water outlet, the filth and the like are pushed into the toilet drainage channel from the water reservoir, It can be discharged well from the toilet body.

  Therefore, the toilet bowl body of the present invention can satisfactorily wash the toilet bowl with less washing water.

  The siphon flush toilet of the present invention comprises the toilet body, and a siphon action is generated in the toilet drainage channel during toilet cleaning.

  In this case, the toilet bowl main body allows the flush water to flow into the toilet drainage channel at a stretch because the bundled flush water flows into the reservoir part vigorously. For this reason, a siphon effect | action can be reliably generated with the wash water which flowed into the toilet drainage channel at a stretch. Therefore, this siphon type flush toilet can discharge filth etc. well from the toilet body using the siphon action.

  Therefore, the siphon type flush toilet of the present invention can satisfactorily wash the toilet bowl with a small amount of washing water.

It is a top view of the siphon type flush toilet of an Example. It is an arrow AA cross section of FIG. FIG. 3 is a cross section taken along the line B-B in FIG. 1 (a cleaning tank and the like are omitted). FIG. 3 is a cross-sectional view taken along the line CC in FIG. 1 (a cleaning tank and the like are omitted). FIG. 3 is a cross section taken along the line DD in FIG. 1 (a cleaning tank and the like are omitted). It is sectional drawing which shows the flow of the washing water of the siphon type flush toilet of an Example.

  A preferred embodiment of the present invention will be described.

  The toilet body may have a second water outlet that joins the cleaning water discharged from the first water outlet and discharges the cleaning water flowing along the guide surface. In this case, the wash water discharged from the second water discharge port joins the wash water discharged from the first water discharge port and flows into the water reservoir. For this reason, this toilet body has a larger flow rate of the wash water flowing into the reservoir (the amount of water flowing per unit time: the same applies hereinafter), and can push the filth into the toilet drainage channel well. Soil and the like can be discharged well from the toilet body.

  The toilet bowl portion has a washing shelf that extends continuously outward from the upper end of the guide surface and has a gentler slope than the guide surface, and the wash water flowing in the toilet bowl portion flows over the washing shelf. It can be divided into a flowing flow and a flow flowing along the guide surface. In this case, when the flush water level in the toilet bowl is high, the toilet body can form a swirling flow that swirls vigorously in the toilet bowl by the flow flowing on the washing shelf, and the surface of the toilet bowl Can be washed well. In addition, the toilet body has a flow that flows along the guide surface into the reservoir, and can push the filth into the toilet drainage well, and discharge the filth etc. from the toilet body. Can do.

  The toilet bowl may have a standing wall that changes the flow of washing water toward the inlet at a portion facing the guide surface. In this case, the wash water flowing along the guide surface collides with the standing wall, and can be changed to a flow toward the inflow port of the toilet drainage channel. For this reason, it is possible to form a main stream of washing water that flows from one direction into the toilet drainage channel, so that filth can be pushed well into the toilet drainage channel, and filth etc. can be discharged well from the toilet body. Can do.

  Next, an embodiment embodying a siphon type flush toilet equipped with a toilet body of the present invention will be described with reference to the drawings.

<Example>
As shown in FIGS. 1 and 2, the siphon type flush toilet of the embodiment includes a toilet body 10, a toilet cleaning device 30, and a toilet seat device 50. The toilet body 10 includes a toilet bowl 11, a toilet drainage channel 12, a first water outlet 13, and a second water outlet 14. The toilet bowl cleaning device 30 includes a cleaning tank 31, a pump 32, and a distribution water supply pipe 33. The toilet seat device 50 includes a toilet seat device main body 51 that is placed and fixed on the upper surface of the toilet body 10, and a toilet seat and a toilet lid 52 that are pivotally supported on the front portion of the toilet seat device main body 51.

  The toilet body 10 has a peripheral wall 15 extending downward from the upper surface periphery. The toilet bowl main body 10 forms a toilet bowl 11 on the front side (lower side in FIG. 1) in the peripheral wall part 15, and the toilet bowl cleaning device 30 and the like below and behind the toilet bowl 11 (upward in FIG. 1). Is formed.

  The toilet drainage channel 12 has an inflow port 12 </ b> A at the lower rear of the toilet bowl 11, and is continuously formed on the downstream side of the toilet bowl 11. The toilet drainage channel 12 extends to the rear of the toilet bowl 11, and a downstream outlet 12 </ b> E is disposed in the storage space S behind the toilet bowl 11. As shown in FIG. 2, the toilet drainage channel 12 includes an introduction portion 12B slightly lowered from the inlet 12A, an ascending passage 12C continuously rising downstream of the introduction portion 12B, and the ascending passage 12C. It has a downward flow path 12D that continuously descends on the downstream side.

  In the toilet body 10, a reservoir 16 is formed by the toilet drainage channel 12 upstream of the top 12 </ b> F on the lower surface of the ascending channel 12 </ b> C and the lower part of the toilet bowl 11. As shown in FIG. 1, the toilet body 10 forms a substantially rhombic reservoir surface 16 </ b> A that is long in the front-rear direction (vertical direction in FIG. 1) in plan view.

  The toilet drainage channel 12 has a downstream end (a lower portion of the descending channel 12D) that forms the discharge port 12E extending in the vertical direction. The downstream end of the toilet drainage channel 12 is inserted into an upper end opening 71 opened vertically above the drainage connection pipe 70 and connected to the drainage connection pipe 70. The drainage connection pipe 70 is fixed to the floor surface F on which the toilet body 10 is placed in the storage space S behind the toilet bowl 11. The drainage connection pipe 70 forms a crank-shaped flow path, and the center axis of the lower end opening 72 is shifted from the center axis of the upper end opening 71 to the front of the toilet body 10. The drainage connection pipe 70 has a throttle 73 formed slightly above the lower end opening 72. When the cleaning water flows into the drainage connection pipe 70 from the upper end opening 71, the cleaning water scatters at the throttle 73 and forms a water film. Thereby, a siphon action can be generated in the drainage connection pipe 70 and the toilet drainage channel 12 on the upstream side of the throttle portion 73.

  1-4, the toilet bowl part 11 has the guide surface 17 formed in the inflow port 12A side of the toilet drainage channel 12, and upwards from the water storage surface 16A. In the plan view, the guide surface 17 is curved from the vicinity below the second water discharge port 14 to the front and rear central portions on the left side (left side in FIG. 1) via the rear side (upper side in FIG. 1) of the water storage surface 16A. It extends. The guide surface 17 is formed so that the downstream side in the swirling flow of the cleaning water swirling counterclockwise in the toilet bowl 11 in plan view is steeper than the upstream side (see FIGS. 2 to 4). Further, the guide surface 17 is arranged such that the downstream side in the swirling flow of the cleaning water swirling counterclockwise in the toilet bowl 11 in a plan view is in contact with the peripheral portion of the water reservoir surface 16A (the front and rear central portion on the left side of the water reservoir surface 16A). Is formed.

  Further, the toilet bowl 11 has a washing shelf 18 that extends continuously outward from the upper end of the guide surface 17 and has a gentler slope than the guide surface 17. The washing shelf 18 has an outer edge continuous to the lower end of the inner peripheral wall 11 </ b> A that rises at the upper edge of the toilet bowl 11.

  As shown in FIGS. 1 and 5, the toilet bowl 11 has a front right side of the reservoir surface 16A (lower right side in FIG. 1), that is, a right front side of the substantially rhomboid reservoir surface 16A in plan view. It has the standing wall 19 extended above 16 A of stored water surfaces in the site | part which forms a part. The standing wall 19 is formed at a portion facing the guide surface 17. The standing wall 19 can be changed to a flow toward the inlet 12 </ b> A of the toilet drainage channel 12 due to collision of the washing water flowing along the guide surface 17.

  As shown in FIG. 1, the toilet body 10 includes a first water supply chamber 13 </ b> A provided outside the upper peripheral edge on the left side (left side in FIG. 1) of the toilet bowl 11 and inside the peripheral wall 15. Yes. The first water supply chamber 13A extends rearward (upward in FIG. 1) from the substantially central portion of the toilet bowl 11 in the front-rear direction. A distal end portion of a left-side water supply pipe 33B, which will be described later, of the distribution water supply pipe 33 is inserted from the rear of the first water supply chamber 13A and is disposed in the first water supply chamber 13A. The first water discharge port 13 is opened at the front end of the first water supply chamber 13A. That is, the 1st spout 13 is the upper periphery of the left side of the toilet bowl part 11, Comprising: It opens in the approximate center part of the front-back direction of the toilet bowl part 11 toward the front (downward direction in FIG. 1). The toilet body 10 has a rim water passage 11 </ b> B formed on the upper peripheral edge continuously to the bottom surface of the first water outlet 13 (see FIG. 2).

  The toilet body 10 has a second water supply chamber 14 </ b> A provided outside the upper peripheral edge of the right rear part (upper right part in FIG. 1) of the toilet bowl 11 and inside the peripheral wall 15. A distal end portion of a right side water supply pipe 33C, which will be described later, of the distribution water supply pipe 33 is inserted from the rear of the second water supply chamber 14A and is disposed in the second water supply chamber 14A. The 2nd spout 14 is opened in the rear part of the side surface by the side of the toilet bowl 11 of 14 A of 2nd water supply chambers. That is, the 2nd spout 14 is opening to the left direction (left direction in FIG. 1) in the upper periphery of the right rear part of the toilet bowl part 11. As shown in FIG.

  As illustrated in FIGS. 1 and 2, the cleaning tank 31 of the toilet bowl cleaning device 30 is disposed in the storage space S and below and behind the toilet bowl 11. The pump 32 is disposed in the storage space S and behind the toilet bowl 11 and above the washing tank 31. The pump 32 has an inlet connected to the upper end of the cleaning tank 31 via a connecting pipe 32A. The pump 32 connects the discharge pipe 32 </ b> B to the distribution water supply pipe 33. The distribution water supply pipe 33 includes an upstream pipe 33A connected to the discharge pipe 32B of the pump 32, and a left water supply pipe 33B and a right water supply pipe 33C branched from the upstream pipe 33A.

  The left side water supply pipe 33B of the distribution water supply pipe 33 has an outlet 34 whose tip is open. For this reason, the wash water that flows out from the outlet 34 of the left water supply pipe 33 </ b> B flows into the first water supply chamber 13 </ b> A toward the first water outlet 13 and is discharged from the first water outlet 13. The wash water discharged from the first water discharge port 13 flows along the rim water passage 11B, and forms a swirl flow that swirls counterclockwise in the toilet bowl 11 in a plan view.

  The right side water supply pipe 33C of the distribution water supply pipe 33 is closed at the tip, and has an outflow port 35 opened on the side wall portion 15 side of the second water supply chamber 14A. For this reason, the outflow port 35 of the right side water supply pipe 33 </ b> C flows out the washing water in a direction substantially opposite to the second water discharge port 14. The wash water that has flowed out from the outlet 35 of the right water supply pipe 33C is discharged from the second water discharge port 14 while filling the second water supply chamber 14A.

  The wash water discharged from the second water discharge port 14 flows into the flow that flows along the guide surface 17 and the flow that flows on the cleaning shelf 18 together with the wash water discharged from the first water discharge port 13. The 2nd water outlet 14 has an opening area larger than the outflow port 35 of the right side water supply pipe 33C. For this reason, the flow rate of the wash water discharged from the second water discharge port 14 becomes slow, and scattering when the wash water discharged from the first water discharge port 13 joins the toilet bowl 11 can be prevented.

  Next, how the wash water flows when the toilet cleaning of the siphon type flush toilet having such a configuration is executed will be described.

  In this siphon type flush toilet, when a toilet flushing switch provided in a remote controller (not shown) is operated, the pump 32 is driven for a set time, and the washing water stored in the washing tank 31 is first supplied via the distribution water supply pipe 33. Water is discharged from the water outlet 13 and the second water outlet 14. Thereby, this siphon type flush toilet performs toilet flushing.

  In this siphon flush toilet, the outlet 34 of the left water supply pipe 33B of the distribution water supply pipe 33 flows out of the wash water toward the first water discharge opening 13, so that immediately after the toilet flushing is started, from the first water discharge opening 13. The washing water can be discharged along the rim water passage 11B. On the other hand, in this flush toilet, since the outlet 35 of the right-side water supply pipe 33C of the distribution water supply pipe 33 flows out of the washing water in a direction substantially opposite to the second water outlet 14, the second discharge is immediately after the toilet flushing is started. The washing water is not discharged into the toilet bowl 11 from the water port 14. That is, since the outflow port 35 of the right side water supply pipe 33C flows out the washing water in a direction substantially opposite to the second water discharge port 14, the wash water flowing out from the outflow port 35 of the right side water supply pipe 33C directly becomes the second discharge port. It is possible to prevent water from being discharged into the toilet bowl 11 from 14 and to delay the water discharge start time from the second water discharge port 14.

  As shown in FIG. 6, the wash water discharged from the first water discharge port 13 flows along the rim water passage 11 </ b> B of the toilet bowl 11, and a part of the wash water is inclined by the inclination of the toilet bowl 11. It flows down toward the reservoir 16. On the other hand, the wash water flowing out from the outlet 35 of the right side water supply pipe 33C starts to be gradually discharged from the second outlet 14. The cleaning water discharged from the second water outlet 14 gradually increases until the inside of the second water supply chamber 14A is filled with the cleaning water flowing out from the outlet 35 of the right side water supply pipe 33C.

  When the wash water spouted from the first spout 13 reaches the right rear part (upper right side in FIG. 6) of the toilet bowl 11, the wash water spouted from the second spout 14 increases to a maximum flow rate. And merges with the wash water discharged from the first water discharge port 13. The combined cleaning water is divided into a flow that flows along the guide surface 17 and a flow that flows on the cleaning shelf 18.

  The cleaning water flowing on the cleaning shelf 18 flows vigorously because the cleaning water discharged from the second outlet 14 is joined to the cleaning water discharged from the first outlet 13. For this reason, this siphon type flush toilet can form a swirl flow that swirls vigorously in the toilet bowl 11 by the flow flowing on the washing shelf 18 when the level of the washing water in the toilet bowl 11 is high. And the surface of the toilet bowl 11 can be washed well. Further, the washing water that flows forward from the washing shelf 18 to the left side of the toilet bowl 11 (washing water that has made a round in the toilet bowl 11) is further discharged from the first spout 13. To join. Thereby, a powerful swirl flow swirling counterclockwise in the toilet bowl 11 can be formed. For this reason, this siphon type flush toilet bowl can wash | clean the surface of the toilet bowl part 11 favorably by a swirl flow.

  On the other hand, the wash water flowing along the guide surface 17 smoothly flows into the water reservoir 16. In this way, the siphon flush toilet can allow the washing water to flow to the reservoir 16 by the guide surface 17 while the washing water swirls in the toilet bowl 11, so that the washing water is as if it were bundled. Can flow into the water reservoir 16. In particular, since the wash water discharged from the second water discharge port 14 is joined to the wash water discharged from the first water discharge port 13, a sufficient flow rate can be obtained even if the flow is separated from the flow flowing on the cleaning shelf 18. Can be allowed to flow into. In addition, the bundle of wash water can be caused to flow into the water reservoir 16 while suppressing the attenuation of the momentum of the swirling flow of the wash water swirling in the toilet bowl 11.

  The washing water that has flowed into the water reservoir 16 collides with the standing wall 19 and forms a flow toward the inlet 12A of the toilet drainage channel 12. For this reason, the main stream of the wash water which flows into the toilet drainage channel 12 from one direction can be formed. Therefore, since this siphon flush toilet can allow flush water to flow into the toilet drainage channel 12 at once, the flushing water scatters at the throttle 73 to form a water film, and the siphon action in the toilet drainage channel 12 Can be reliably generated. The flush water level in the toilet bowl 11 rises until a siphon action occurs in the toilet drainage channel 12.

  Further, in this siphon type flush toilet, even after the siphon action has occurred, a bundle of wash water flows into the water reservoir 16 and flows into the toilet drainage channel 12 from one direction. Pushing in can be performed satisfactorily, and dirt and the like can be discharged from the toilet main body 10 satisfactorily. Furthermore, this siphon type flush toilet bowl can discharge filth etc. well from the toilet body 10 in combination with the conveyance force of the filth due to the siphon action. That is, this siphon type flush toilet can clean the surface of the toilet bowl 11 well even if the amount of washing water discharged from the first water outlet 13 and the second water outlet 14 is reduced, and the sewage etc. from the toilet body 10. Can be discharged satisfactorily.

  Therefore, the siphon type flush toilet of the embodiment can perform toilet flushing with a small amount of washing water.

  The water level of the wash water in the toilet bowl 11 drops after a siphon action occurs in the toilet drainage channel 12. When the water level in the toilet bowl part 11 falls and air flows from the toilet bowl part 11 side to the ascending flow path 12C side of the toilet drainage channel 12, the sealed water is broken and the siphon action is finished. After the siphon action is finished, when the flush water is supplied into the toilet bowl 11 and the flush water is stored in the reservoir 16 to form a water seal, the driving of the pump 32 is stopped and the toilet flushing is finished. And this siphon type flush toilet returns to the standby state of toilet flushing.

The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the example, although the toilet bowl body was provided with the 2nd spout, it does not need to be provided with the 2nd spout.
(2) In the embodiment, the toilet drainage inlet is provided at the lower rear of the toilet bowl, but the toilet drainage inlet may be provided at the lower front of the toilet bowl. In this case, the toilet bowl part does not need to form a standing wall.
(3) In an embodiment, the first water outlet is the upper peripheral edge on the left side of the toilet bowl, and is formed so as to open toward the front in the substantially central portion of the front and rear direction of the toilet bowl, and the second water outlet Is formed so as to open leftward at the upper peripheral edge of the right rear part of the toilet bowl, but the first and second outlets are the upper peripheral edge of the toilet bowl and are good in the toilet bowl. What is necessary is just to form in the place which can form the flow of a proper washing water.
(4) Although the siphon type flush toilet is used in the embodiment, it may be a flush toilet that does not generate siphon action in the toilet drainage channel.
(5) Although the cleaning shelf is provided in the embodiment, the cleaning shelf may not be provided.
(6) Although the toilet cleaning device such as the cleaning tank is stored in the storage space of the toilet body in the embodiment, it may be arranged on the upper surface of the rear part of the toilet body.
(7) Although the embodiment has a washing tank, it does not have a washing tank, and the water supply pipe is directly connected to the water supply source, and the wash water is supplied to the toilet using the water supply pressure. May be.

DESCRIPTION OF SYMBOLS 10 ... Toilet body 11 ... Toilet bowl part 12 ... Toilet drain 12A ... Inlet (of toilet drain) 13 ... 1st outlet 14 ... 2nd outlet 16A ... Reservoir surface 17 ... Guide surface 18 ... Cleaning shelf 19 ... Standing wall

Claims (5)

Toilet bowl,
A toilet drainage channel having an inlet at the bottom of the toilet bowl and communicating downstream;
In a plan view, a first spout for discharging wash water that forms a swirling flow that swirls the toilet bowl in one direction ;
A toilet body with
The toilet bowl is
A guide surface that is formed on the inflow side and above the stored water surface, and in which the downstream side in the swirling flow is inclined more steeply than the upstream side in plan view ;
In a plan view, the toilet body is characterized in that the guide surface is continuous with the peripheral portion of the pool surface so that the downstream side in the swirling flow of the upper edge of the guide surface is in contact with the peripheral portion of the pool surface .   The toilet body according to claim 1, further comprising a second water discharge port that joins the wash water discharged from the first water discharge port and discharges the wash water flowing along the guide surface. The toilet bowl extends continuously outward from the upper end of the guide surface, and has a washing shelf whose slope is gentler than the guide surface.
The toilet body according to claim 1 or 2, wherein the washing water flowing in the toilet bowl is divided into a flow flowing on the washing shelf and a flow flowing along the guide surface.   The toilet bowl according to any one of claims 1 to 3, wherein the toilet bowl portion includes a standing wall that changes a flow of washing water toward the inlet at a portion facing the guide surface. Body.   A siphon type flush toilet comprising the toilet body according to any one of claims 1 to 4, wherein a siphon action is generated in the toilet drainage channel when the toilet is washed.

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