JP2002294838A - Flush toilet bowl - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem of not necessarily having suitable setup on the formation of a siphon and the discharge of dirt using a jet pump because of setting a main point only on nozzle constitution in a conventional flush toilet bowl. SOLUTION: In this flush toilet bowl, pressurized wash water from an external pressurized water supply source is discharged toward a trap inlet from a jet water discharge port provided at the bottom part of a bowl part, and the jet water discharge port and a so-called riser part extending from the trap inlet to a weir part, are arranged almost on a straight line. The quantity of discharge flow from the jet water discharge port, the flow velocity, the diameter of the jet water discharge port and an inner diameter from the trap inlet to the weir part are set to enhance a jet pump effect.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jet water jet from an external pressurized water supply source which is discharged from a jet water outlet provided at the bottom of a bowl toward a trap inlet. The invention relates to a flush toilet having a so-called rising pipe section extending from a to a weir section arranged substantially in a straight line.

[0002]

2. Description of the Related Art Conventionally, there has been a problem in a toilet bowl that discharges pressurized washing water from an external pressurized water supply source toward a trap entrance from a jet discharge port provided at the bottom of a bowl portion.
Insufficient discharge of waste generated in the area from the trap entrance to the weir. At this time, if the countermeasure is taken simply by increasing the water level of the washing water from the jet outlet, it is often observed that only the water in the rising pipe is discharged and the dirt does not move. This is a phenomenon that occurs because the washing water from the jet water outlet does not hit the filth well or the water is not easily involved. Therefore,
In 200931, as shown in FIG. 16, in a toilet bowl that discharges pressurized washing water from an external pressurized water supply source toward a trap inlet 2 from a jet water discharge port 1 provided at the bottom of a bowl portion, By providing the water outlet 5, FIG.
By performing shower-like spouting as shown in FIG. 8, the siphon forming ability and the waste carrying ability are to be ensured.

According to the method disclosed in H2-200931, a large amount of washing water is fed into a trap by utilizing an action of a jet stream involving surrounding water, that is, an ejector effect, thereby discharging waste and forming a siphon. This can be interpreted as a configuration in which a jet pump is incorporated in a toilet. In general, a jet pump has a configuration of a jet nozzle, a entanglement gap, and a throat. In the above-mentioned toilet, in FIG.
In addition, the throat corresponds to the riser 4. The function of the jet pump is greatly affected by differences in the dimensions of each of these components, their structures, and the ability to supply water from the water supply pipe. FIG. 19 shows the ratio d / of the jet nozzle diameter d to the throat inner diameter D, which is a component of the jet pump.
A general relationship between D and pump efficiency is shown. At this time, the pump efficiency indicates how much kinetic energy of the driving flow discharged from the jet nozzle moves to the surrounding water. According to FIG. 19, d / D is 0.4 to
It can be seen that the pump efficiency increases in the range of 0.8. However, in the above invention, since only the nozzle configuration is intended, the setting of siphon formation and waste discharge using a jet pump cannot always be set to a suitable setting. Therefore, in the present invention,
It is an object of the present invention to show a suitable arrangement of each element in order to maximize its function, focusing on a jet pump configured inside a toilet.

[0003]

In order to achieve the above object, a first aspect of the present invention is to trap pressurized washing water from an external pressurized water supply source through a jet water outlet provided at the bottom of a bowl portion. In a flush type toilet in which water is discharged toward the entrance and a so-called rising pipe portion from the entrance of the jet and the entrance of the trap to the weir is arranged substantially in a straight line, the water supply pressure from the jet discharge of the jet is zero. There is a discharge flow rate of 70 L / min or more at .04 MPa, and its jet discharge port diameter d0 and inner diameter D from the trap entrance to the weir section.
The ratio d0 / D, which is the ratio of d0 / D, is set in the range of about 0.4 to 0.8. According to the present invention, for example, at a site such as a hotel or an office building, the discharge flow rate from the jet water outlet is about 70 L / min.
The degree has been discharged. In that case, the flow velocity is about 2.3 m / sec, for example,
0 is about φ30 mm, and the inner diameter D from the trap entrance to the weir is a ratio of d0 / D of about 0.3.
By setting it to be in the range of 4-0.8,
Suitable arrangement as a jet pump can be obtained. As a result, the energy transfer efficiency of the jet pump is improved, and more water in the bowl surface can be drawn into the trap, and the formation of a siphon can be promoted. Further, by adding the jet pump effect to the effect of the siphon, waste can be more effectively discharged.

According to a second aspect of the present invention, pressurized washing water from an external pressurized water supply source is discharged from a jet discharge port provided at the bottom of the bowl toward the trap inlet, and the jet water is discharged from the jet discharge port and the trap entrance to the weir. In a flush toilet in which the so-called rising pipe portion is arranged substantially in a straight line, the flush toilet has two jet outlets, and the total discharge flow rate of the jet outlet is 18 L at a water supply pressure of 0.07 MPa. / Min or more, and its jet outlet is inscribed on a virtual circumference of diameter d2, and d2 / D is the ratio of the diameter d2 of the virtual circle to the inner diameter D from the trap entrance to the weir.
Is set in the range of about 0.4 to 0.8. According to the present invention, for example, even at sites such as hotels and office buildings, there are sites where the discharge flow rate from the jet water outlet is as low as about 30 L / min. In that case, it has two jet water outlets, for example, the value at which the flow velocity of each jet water outlet is about 7.8 m / sec, that is, each jet water outlet diameter d1 is about φ5 mm, and the jet water outlet thereof Are inscribed on the virtual circumference of the diameter d2, and the ratio d2 / D between the diameter d2 of the virtual circle and the inner diameter D from the trap entrance to the weir is about 0. By setting the flow rate within the range of 4 to 0.8, a wide and high flow rate is supplied to the trap rising pipe section, so that even a pipe having a small total supply flow rate can be suitably used as a jet pump. As a result, more water in the bowl surface can be drawn into the trap, and the formation of a siphon can be promoted. Further, by adding the jet pump effect to the effect of the siphon, waste can be more effectively discharged.

According to a third aspect of the present invention, pressurized washing water from an external pressurized water supply source is spouted from a jet outlet provided at the bottom of the bowl toward the trap inlet, and a weir is formed from the jet outlet and the trap inlet. In a flush toilet in which the so-called riser section leading to is disposed substantially in a straight line, the flush toilet has three jet discharge ports, and the total discharge flow rate of the jet discharge ports is such that the supply pressure is 0.07 MPa when the supply pressure is 0.07 MPa. 18L / min
That is, the jet outlet of the jet is inscribed on the virtual circumference of the diameter d4, and d4 / is the ratio of the diameter d4 of the virtual circle to the inner diameter D from the trap entrance to the weir.
D is set in a range of about 0.4 to 0.8. According to the present invention, for example, even at sites such as hotels and office buildings, there are sites where the discharge flow rate from the jet water outlet is as low as about 30 L / min. In that case, it has three jet outlets, for example, the flow velocity of each jet outlet is about 7.8 m / sec, that is, each jet outlet diameter d3 is about φ4 mm, and the jet outlet has a diameter of about 4 mm. d4 / D, which is a ratio between the diameter d4 of the imaginary circle and the inner diameter D from the trap entrance to the weir, is approximately 0.4 to By setting the value within the range of 0.8, a wide and high flow rate can be supplied to the trap rising pipe section, so that even a pipe having a small total supply flow rate can be suitably arranged as a jet pump. The trapped water can be drawn into the trap more in the bowl surface, and the formation of a siphon can be promoted. Further, by adding the jet pump effect to the effect of the siphon, waste can be more effectively discharged.

According to a fourth aspect of the present invention, there is provided a flush toilet according to the second and third aspects, wherein the jet outlets are arranged so that the positions of the water outlets are different when the jet outlets are viewed perpendicular to the water discharge direction. Features. According to the present invention, when the spout is viewed perpendicular to the spouting direction, by disposing the spouts at different positions, even if filth is dropped in front of the Zet spout, the nozzle is Since a gap can be secured between the waste and the waste, water can be sucked from the gap, and discharge of the waste and formation of a siphon can be ensured.

According to a fifth aspect of the present invention, pressurized washing water from an external pressurized water supply source is spouted from a jet outlet provided at the bottom of the bowl toward the trap inlet, and a weir is formed from the jet outlet and the trap inlet. In the flush toilet having a so-called rising pipe portion that is arranged substantially in a straight line, the shape of the jet water outlet is annular, and the water supply pressure from the jet water outlet is 18 L / at a flow pressure of 0.07 MPa. min5 or more, and the ratio of the outer diameter d5 of the ring to the inner diameter D from the trap entrance to the weir is d5 / D.
Is set in the range of about 0.4 to 0.8. According to the present invention, for example, even at a site such as a hotel office building, there is a site where the discharge flow rate from the jet water outlet is as low as about 40 L / min.
In that case, the outer diameter d5 of the ring which is the jet water outlet is 30 mm and the inner diameter is 30 mm so that the flow rate of the jet water outlet is about 7.8 m / sec. The diameter d6 of 29.2 mm,
In the case of d5 and the inner diameter D from the trap entrance to the weir, the respective ratio, d5 / D, is about 0.4-0.
8, the flow area is secured by narrowing the cross-sectional area of the discharge port, and the diameter of each of the rings is increased so that the flow rate with the surrounding water as the driven fluid can be reduced. By increasing the contact area, the transfer efficiency of kinetic energy, that is, the jet pump effect can be increased.

According to a sixth aspect of the present invention, in the flush toilet according to the first, second, third, fourth, and fifth aspects, the trap drainage channel has a substantially horizontal portion at the weir portion, and the connection with the drainage pipe is flanged. A flat portion is formed around the end of the horizontal portion such that According to the present invention, claims 1, 2, 3,
4. A flush toilet having a trap drainage channel having a substantially horizontal portion at its weir portion, and a flat portion formed around the end of the horizontal portion so as to be connected to the drainage pipe by a flange connection. Thereby, connection with a drainage pipe at a high drainage position is possible. As a result, for example, a large number of toilets can be installed in one horizontal drainage pipe of a hotel or the like. In addition, by using the flange connection, the length required for the connection portion can be shortened, and a compact toilet can be realized.

According to a seventh aspect of the present invention, in the flush toilet according to the first, second, third, fourth, and fifth aspects, the trap drainage channel has a substantially horizontal portion at its weir portion, and the tip thereof can be formed by a separate member. Characterized in that it has a cylindrical shape so that it can be inserted into the pipe member. According to the present invention, in the flush toilet of claims 1, 2, 3, 4, and 5, the trap drainage channel has a substantially horizontal portion at the weir portion, and the tip thereof is a separate member. It is a cylindrical insertion so that it can be inserted into the packing. Thereby, the cylindrical portion is simply inserted into the pipe member fixed to the drainage pipe, and the construction is facilitated. In addition, a compact toilet bowl can be realized by connecting a pipe that is shaken sideways from the connection part, such as when the water distribution pipe is at the rear corner of the toilet booth.

According to an eighth aspect of the present invention, in the flush toilet of the first, second, third, fourth, and fifth aspects, the trap drainage channel is provided on the downstream side of the weir portion with a descending channel integrated from the rising pipe portion. It is characterized in that it has a cylindrical shape so that its tip can be inserted into a piping member made of a separate member. According to the present invention, in the flush toilet of claims 1, 2, 3, 4, and 5, the trap drainage channel constitutes a descending passage integrated from the rising pipe portion downstream of the weir portion, In addition, the distal end portion is formed into a cylindrical shape so as to be inserted into a piping member and a packing made of separate members. This facilitates connection to the drain pipe, and in combination with the descending passage and the piping member, generates a strong siphon action, thereby further improving the waste discharge effect.

According to a ninth aspect of the present invention, in the flush toilet of the first, second, third, fourth, and fifth aspects, the water passage for the flush water discharged from the jet port or the jet water outlet port is formed as a separate part. It is characterized by having been done. According to the present invention, claim 1,
Suppress the dimensional tolerances of pipes and nozzles by constructing a separate channel for the flush water or the jet water outlet from the jet port on the flush toilets 2, 3, 4, and 5 As a result, the pressure loss can be reduced, so that a decrease in the flow rate of the washing water from the jet discharge port can be suppressed. as a result,
The jet pump effect and the pushing-out effect of the filth under the low supply water amount condition can be secured.

[0012] Claim 10 is Claim 1, 2, 3, 4, 5
The flush toilet described above is characterized in that the cross-sectional shape of the water passage of the jet water outlet widens in the water discharge direction. According to the present invention, claims 1, 2, 3, 4, 5
In the flush toilet of the above, the cross-sectional shape of the water passage of the jet water outlet is such that the cross section widens in the water discharge direction, so that the discharged water jet becomes a diffused flow, and the jet water discharged into the surrounding water at a shorter distance Will give kinetic energy. In general, in a jet pump, energy is transferred in a tube called a throat facing the nozzle, and in the present invention, a portion from a trap entrance to a weir is equivalent. If this part is short, the transfer of energy will be insufficient. However, according to the present invention, even if the length of this part is short, it is possible to sufficiently obtain the jet pump effect. Be able to design.

[0013] Claim 11 is Claims 1, 2, 3, 4, 5
In the flush toilet described, the cross-sectional shape of the water passage cross-section of the jet discharge port is narrowed down in the water discharge direction,
In addition, a straight pipe configuration is provided at the tip end.
According to the present invention, in the flush toilet of claims 1, 2, 3, 4, and 5, the cross-sectional shape of the water passage of the jet water outlet is narrowed in the water discharge direction, and the tip is By providing a straight pipe configuration, the spouted jet becomes rectified, giving kinetic energy to the surrounding water over a longer distance. Therefore, for example, when the riser tube is long due to the design of the toilet bowl, by using the configuration of the present invention, it is possible to reliably push the waste by the jet and the jet pump effect to the weir portion and discharge the waste. Can be.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a configuration near a trap section of a toilet bowl according to an embodiment of the present invention. Zetto spout 10
Has an inner diameter d0 of about 30 mm, and the flow rate of the flushing water discharged is about 2.3 m / min at an instantaneous flow rate of about 70 L / min.
sec. This washing flow is sprayed toward the riser 11, and at this time, the inner diameter D of the riser and the jet outlet 10
Is 0.4 to 0.8, and the jet pump effect is drawn out at a high level, so that the waste discharging performance is improved. The inner diameter of the riser of the siphon toilet is
For example, if the inner diameter of the jet water outlet is φ30 mm at this time, the d / D is 0.5, and it can be seen from FIG. 19 that the d / D is in the region where the jet pump effect is high.

FIG. 2 shows a configuration near the trap portion of the toilet bowl according to the second embodiment, and FIG. 3 shows a front portion of the jet water outlet. The two jet outlets 21 have a diameter setting such that the discharge flow rate from each of the jet outlets is about 9.2 L / min, and the flow rate is about 7.8 m / sec. Diameter d1 of Z water outlet 21
Is about φ5 mm. In addition, those jet water outlets 21
Is inscribed on an imaginary circumference having a diameter d2, and the ratio between the diameter d2 of the imaginary circle and the inner diameter D of the riser 20 from the trap entrance, that is, d2 / D
Is set in the range of about 0.4 to 0.8, and the performance of discharging waste is improved by extracting the jet pump effect at a high level. The inner diameter of the riser of the siphon type toilet bowl is, for example, about φ60 mm.
2 is φ30 mm, the d2 / D is 0.5
It can be seen from FIG. 19 that the region enters a region where the jet pump effect is high.

FIG. 4 shows the configuration near the trap portion of the toilet bowl according to the third embodiment, and FIG. 5 shows the front portion of the jet water outlet. The three jet outlets 31 have a discharge flow rate from the jet outlet of about 5.8 L / min and a flow rate of about 7.8 m / sec, that is, the diameter d3 of each jet outlet 31 is about 3 m / sec. φ4mm. Further, the jet discharge ports 31 are inscribed on the virtual circumference of the diameter d4, and the ratio between the diameter d4 of the virtual circle and the weir portion from the trap entrance, that is, the inner diameter D of the riser pipe 30, is the respective ratio. , D4 / D are set in the range of about 0.4 to 0.8, and the performance of discharging waste is improved by extracting the jet pump effect at a high level. The inner diameter of the riser of the siphon type toilet bowl is, for example, about φ60 mm. At this time, if the imaginary circular inner diameter d4 is φ30 mm, d4 / D becomes 0.5, which is in the region where the jet pump effect is higher than in FIG. You can see that.

FIG. 6 is a cross-sectional view of a jet water outlet of a toilet bowl according to an embodiment of the present invention, and FIG. 7 is a front view thereof, and FIG. Two jet outlets 40 and 41
Has a discharge flow rate of about 9.2 from each jet outlet.
L / min, and the diameter is set such that the flow velocity is about 7.8 m / sec. As a result, the diameter d1 of each jet discharge port 22 is about φ5 mm. Further, these jet discharge ports 40 and 41 are inscribed on the virtual circumference of the diameter d2, and at the diameter d2 of the virtual circle and the weir portion from the trap entrance, that is, the inner diameter D of the rising pipe 42,
Each ratio, d2 / D, is about 0.4 to 0.5.
8, and the cross-sectional configuration of the jet water outlets 40 and 41 is shifted from each other, as shown in FIG. This improves the jet pump effect and ensures that a gap can be secured between the nozzle and the waste, even if the waste is dropped in front of the jet outlet. Formation can be ensured.

FIG. 9 is a front view of a jet outlet of a toilet bowl according to a fifth embodiment of the present invention. The ring-shaped jet water outlet has a discharge flow rate of about 18 L / min, and the diameter d5 of the circle 50 on the outer side of the ring as the jet water outlet is about 7.8 m / sec so that the flow velocity is about 7.8 m / sec. 30mm inner circle 5
The diameter d6 of 1 is about 29.2 mm, and the ratio d5 / D, which is the ratio between d5 and the inner diameter D from the trap entrance to the weir, is set in the range of about 0.4 to 0.8. By narrowing the cross-sectional area of the discharge port, the flow velocity is secured, and the kinetic energy is increased by increasing the diameter of the circle of each ring to increase the contact area with the surrounding water as the driven fluid. Delivery efficiency, that is, a jet pump effect can be enhanced. FIG. 10 is a cross-sectional view of a toilet bowl according to the sixth embodiment.

In the flush toilet of the first, second, third, fourth and fifth aspects, the trap drainage channel has a substantially horizontal portion 60 at its weir portion, and the horizontal portion is connected to the drainage pipe by a flange connection. By forming the flat portion 61 around the end of the drain pipe, it is possible to connect to the drain pipe at a high drain position. As a result,
For example, a large number of toilets can be installed for one horizontal drainage pipe in a hotel or the like. In addition, by using the flange connection, the length required for the connection portion can be shortened, and a compact toilet can be realized.

FIG. 11 is a cross sectional view of a toilet bowl according to a seventh embodiment of the present invention. In the flush toilet of claims 1, 2, 3, 4, and 5, the trap drainage channel has a substantially horizontal portion 70 at the weir portion, and the tip is attached to a piping member 71 made of a separate member. It is a cylindrical insertion so that it can be inserted into the packing 72. This facilitates the connection of the toilet to the drain pipe. In addition, a compact toilet bowl can be realized by connecting a pipe that is shaken sideways from the connection part, such as when the water distribution pipe is at the rear corner of the toilet booth. FIG. 12 is a cross-sectional view of a toilet bowl according to the eighth embodiment. In the flush toilet of claims 1, 2, 3, 4, and 5, the trap drainage channel constitutes a descending channel 80 integrated from the rising pipe portion downstream of the weir portion, and the tip end portion thereof is It is a cylindrical insertion so that it can be inserted into a piping member 81 made of a separate member and a packing 82 attached to it. This facilitates connection to the drain pipe, and in combination with the descending passage and the piping member, generates a strong siphon action, thereby further improving the waste discharge effect.

FIG. 13 is a cross sectional view of a toilet bowl according to a ninth embodiment. In the flush toilet of claims 1, 2, 3, 4, and 5, the water supply passage 91 for flush water discharged from the jet water outlet 90 or the jet water outlet 90 is formed as a separate component, thereby providing piping. Since the dimensional tolerance of the nozzle and the nozzle can be suppressed and the pressure loss can be reduced, a decrease in the flow rate of the washing water at the jet discharge port 90 can be suppressed. As a result, a jet pump effect and a waste pushing effect under a low supply water amount condition can be secured.

FIG. 14 is a cross sectional view of a jet water outlet according to a tenth embodiment. In the flush toilet according to any one of claims 1, 2, 3, 4, and 5, the jetted water jet is diffused by making the cross-sectional shape of the water passage of the jet water outlet 100 widen in the water discharge direction. It becomes a stream and gives kinetic energy to the surrounding water at a shorter distance. In general, in a jet pump, energy is transferred in a tube called a throat facing the nozzle, and in the present invention, a portion from a trap entrance to a weir is equivalent. If this part is short, the transfer of energy will be insufficient. However, according to the present invention, even if the length of this part is short, it is possible to sufficiently obtain the jet pump effect. Be able to design.

FIG. 15 is a cross-sectional view of the jet water outlet according to the eleventh embodiment. In the flush toilet of claims 1, 2, 3, 4, and 5, the cross-sectional shape of the water passage of the jet water outlet 110 has a cross-sectional area narrowed down in the water discharge direction, and a straight pipe configuration at the end. With this arrangement, the discharged jet becomes rectified, and kinetic energy is given to surrounding water using a longer distance. Therefore, for example, when the riser tube is long due to the design of the toilet bowl, by using the configuration of the present invention, it is possible to reliably push the waste by the jet and the jet pump effect to the weir portion and discharge the waste. Can be.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration near a trap section of a toilet bowl according to a first embodiment of the present invention.

FIG. 2 is a view showing a configuration near a trap section of a toilet bowl according to a second embodiment of the present invention.

FIG. 3 is a front view of a jet water outlet of a toilet bowl according to a second embodiment of the present invention.

FIG. 4 is a configuration diagram of the vicinity of a trap portion of a toilet bowl according to a third embodiment of the present invention.

FIG. 5 is a front view of a jet water outlet of a toilet bowl according to a third embodiment of the present invention.

FIG. 6 is a view showing a cross-sectional configuration of a jet water outlet of a toilet bowl according to a fourth embodiment of the present invention.

FIG. 7 is a front view of a jet water outlet of a toilet bowl according to a fourth embodiment of the present invention.

FIG. 8 is a configuration diagram near a trap section of a toilet bowl according to a fourth embodiment of the present invention.

FIG. 9 is a front view of a jet water outlet of a toilet bowl according to a fifth embodiment of the present invention.

FIG. 10 is a cross-sectional view of a toilet bowl according to a sixth embodiment of the present invention.

FIG. 11 is a cross-sectional view of a toilet bowl according to a seventh embodiment of the present invention.

FIG. 12 is a cross-sectional view of a toilet bowl according to an eighth embodiment of the present invention.

FIG. 13 is a cross-sectional view of a toilet bowl according to a ninth embodiment of the present invention.

FIG. 14 is a cross-sectional view of a jet water outlet according to a tenth embodiment of the present invention.

FIG. 15 is a cross-sectional view of a jet water outlet according to an eleventh embodiment of the present invention.

FIG. 16 is a longitudinal sectional view of a toilet showing a conventional technique.

FIG. 17 is a front view of a jet water outlet of a toilet showing a conventional technique.

FIG. 18 is a diagram showing a state of jet water discharge according to the related art.

FIG. 19 is a diagram showing a general relationship between a ratio d / D between a jet nozzle diameter d and a throat inner diameter D, which is a component of the jet pump, and pump efficiency.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Zet spout 2 ... Trap entrance 3 ... Suction port 4 ... Rise pipe 5 ... Spout port 10 ... Zet spout 11 ... Rise pipe 20 ... Rise pipe 21 ... Zet spout 30 ... Rise pipe 31 ... Zet spout 40 ... Z water spout 41 ... Z water spout 42 ... Rise pipe 50 ... Ring outer circle 51 ... Ring inner circle 60 ... Substantially horizontal part 61 ... Planar part 70 ... Substantially horizontal part 71 ... Piping member 72 ... Packing 80 ... Downcomer 81 ... Piping member 82 ... Packing 90 ... Zet water outlet 91 ... Water passage 100 ... Zet water outlet 110 ... Zet water outlet

 ────────────────────────────────────────────────── ─── Continued from the front page (72) Inventor Hidemine Miyahara 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka F-term (reference) 2D039 AA02 AC04 AD01 AD04 CB01 DB00 FC00

Claims (11)

[Claims] 1. A pressurized washing water from an external pressurized water supply source is discharged from a jet discharge port provided at the bottom of a bowl portion toward a trap inlet, and the so-called jet water from the jet discharge port and the trap entrance to a weir is provided. In the flush toilet in which the rising pipe portion is arranged substantially in a straight line, the water supply pressure is 70 L / min at a flow pressure of 0.04 MPa from the jet discharge port.
There is the above discharge flow rate, and d0 is the ratio of the jet discharge port diameter d0 to the inner diameter D from the trap entrance to the weir.
A flush toilet wherein / D is in the range of about 0.4-0.8. 2. A pressurized washing water from an external pressurized water supply source is spouted from a jet water outlet provided at the bottom of the bowl portion toward a trap inlet, and the so-called jet water from the jet water outlet and the trap inlet to a weir is provided. In a flush toilet in which the riser section is arranged substantially in a straight line, it has two jet outlets,
The total discharge flow rate of the jet water outlet is 18 L / min or more at a water supply pressure of 0.07 MPa, and the jet water outlet is inscribed on an imaginary circle having a diameter d2. A flush toilet having a ratio d2 / D which is a ratio of a diameter d2 to an inner diameter D from a trap entrance to a weir portion is in a range of about 0.4 to 0.8. 3. A pressurized washing water from an external pressurized water supply source is spouted from a jet water outlet provided at the bottom of the bowl toward the trap inlet, and the so-called jet water from the jet water outlet and the trap inlet to the weir is provided. In a flush toilet in which the riser section is arranged substantially in a straight line, it has three jet outlets,
The total discharge flow rate of the jet water outlet is 18 L / min or more at a feed water pressure of 0.07 MPa, and the jet water outlet is inscribed on a virtual circle having a diameter d4, A flush toilet having a ratio d4 / D, which is a ratio of a diameter d4 to an inner diameter D from a trap entrance to a weir portion, in a range of about 0.4 to 0.8. 4. The flush toilet according to claim 2, wherein the water outlets are arranged so that the positions of the water outlets are different when the jet water outlet is viewed perpendicularly to the water discharge direction. 5. A so-called pressurized washing water from an external pressurized water supply source is discharged from a jet discharge port provided at the bottom of a bowl portion toward a trap inlet, and the so-called jet water from the jet discharge port and the trap inlet to a weir is provided. In a flush toilet in which the rising pipe portion is arranged substantially in a straight line, the shape of the jet water outlet is annular, and the water supply pressure from the jet water outlet is 18 L / min or more at a flow pressure of 0.07 MPa. There is a discharge flow rate, and d5 / D, which is the ratio between the outer diameter d5 of the ring and the inner diameter D from the trap entrance to the weir, is about 0.5.
A flush toilet that is in the range of 4-0.8. 6. The trap drainage channel has a substantially horizontal portion at its weir portion, and a flat portion is formed around an end portion of the horizontal portion so that connection with the drainage pipe becomes a flange connection. 5
A flush toilet according to any of the above. 7. The trap drainage channel according to claim 1, wherein the trap drainage channel has a substantially horizontal portion at the weir portion, and the tip of the trap drainage channel is formed in a cylindrical shape so as to be inserted into a piping member made of a separate member. A flush toilet. 8. A trap drainage channel downstream of the weir portion,
The flush toilet according to any one of claims 1 to 5, wherein the downcomer is formed integrally with the ascending pipe, and the distal end is formed in a cylindrical shape so as to be inserted into a pipe member made of a separate member. 9. A water passage for washing water discharged from the jet port or a jet water outlet of the jet is formed as a separate part.
A flush toilet according to any one of claims 1 to 5. 10. The water discharge passage cross-sectional shape of the jet discharge port of the ZET,
The flush toilet according to any one of claims 1 to 5, wherein a cross-section widens in a water discharge direction. 11. The water discharge passage cross-sectional shape of the jet discharge port of the ZET is:
The flush toilet according to any one of claims 1 to 5, wherein a cross-sectional area is narrowed in a water discharge direction, and a straight pipe configuration is provided at a distal end portion.