WO2011055745A1 - 洗浄タンク装置及び水洗式便器 - Google Patents
洗浄タンク装置及び水洗式便器 Download PDFInfo
- Publication number
- WO2011055745A1 WO2011055745A1 PCT/JP2010/069596 JP2010069596W WO2011055745A1 WO 2011055745 A1 WO2011055745 A1 WO 2011055745A1 JP 2010069596 W JP2010069596 W JP 2010069596W WO 2011055745 A1 WO2011055745 A1 WO 2011055745A1
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- WIPO (PCT)
- Prior art keywords
- intake
- toilet
- valve
- water
- chamber
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
- E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
- E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
- E03D11/08—Bowls with means producing a flushing water swirl
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D2201/00—Details and methods of use for water closets and urinals not otherwise provided for
- E03D2201/30—Water injection in siphon for enhancing flushing
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
- E03D5/02—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor
- E03D5/024—Operated hydraulically or pneumatically
Definitions
- the present invention relates to a washing tank device and a flush toilet.
- Patent Document 1 discloses a conventional cleaning tank device.
- the washing tank device includes a tank body, a water supply device, and an intake device that sucks air in the toilet drainage channel.
- the tank body has a drain opening that can be opened and closed by an on-off valve, and can store wash water used for washing the toilet body.
- the drain of the tank body communicates with the toilet bowl having a toilet bowl and a toilet drainage channel communicating with the downstream side of the toilet bowl.
- the water supply device supplies cleaning water into the tank body.
- the intake device is arranged in a tank body, and is composed of a booth whose upper end is closed and whose lower end is open, and an intake passage which extends in the booth and above the highest water level in the tank body.
- the intake channel communicates with the toilet drainage channel.
- this washing tank device when the toilet valve cleaning is started by opening the drain opening / closing valve, the washing water stored in the tank body flows out from the drain opening to the toilet bowl body. Thereby, the water level of the washing water in the tank body is lowered.
- the intake device sucks the air in the toilet drainage channel as the water level in the booth decreases.
- the suction device sucks the air in the toilet drainage channel when cleaning the toilet bowl, so that the siphoning action can be reliably generated in the toilet drainage channel and the siphoning action can be promoted.
- a predetermined amount of washing water flows from the drain of the tank body to the toilet body after the toilet flushing is started, and the drain opening / closing valve is closed.
- the washing water level of the water drops at a substantially constant rate. That is, the air intake device starts sucking air in the toilet drainage channel simultaneously with the start of toilet cleaning. For this reason, the intake device sucks the air in the toilet drainage channel before the washing water flowing out from the tank body flows into the toilet drainage channel.
- a predetermined amount of flushing water must flow into the toilet drainage channel, and a predetermined amount of flushing water must flow into the toilet drainage channel. Even if the air in the drainage channel is sucked, it does not contribute to the generation of siphon action.
- the present invention has been made in view of the above-described conventional situation, and it is an object to be solved to provide a cleaning tank apparatus and a flush toilet bowl that can perform toilet cleaning well.
- the washing tank device of the present invention includes a tank body for storing washing water for washing a toilet bowl and a toilet bowl main body having a toilet drainage channel communicating with the downstream side of the toilet bowl, A water supply device for supplying cleaning water into the tank body; A washing tank device comprising an intake device for sucking air in the toilet drainage channel,
- the intake device is An intake chamber formed by dividing the inside of the tank body, extending vertically and having a lower end opened in the tank body; An intake port provided above the water level in the toilet cleaning standby state; The intake chamber and the toilet drainage channel are communicated with each other through the intake port.
- the intake port is closed so that air flows into the intake chamber from the toilet drainage channel side.
- An on-off valve that prevents the water level in the tank body outside the intake chamber from falling below a set water level and opens the intake port to allow air to flow into the intake chamber from the toilet drainage side. It is characterized by having.
- the intake port Since the intake port is opened when the water level in the tank body outside the intake chamber falls below the set water level, a time lag can be provided from the start of toilet cleaning until the intake port is opened. Therefore, when the intake port is opened, a predetermined amount of washing water flows into the toilet drainage channel due to the washing water that has flowed out of the tank body into the toilet body, and a predetermined amount of washing water flows in. It has become. For this reason, when the intake device sucks air in the toilet drainage channel, a siphon action can be reliably generated in the toilet drainage channel.
- the intake port is provided above the water level in the toilet flush standby state, the air in the toilet drainage channel can be sufficiently sucked in by making maximum use of the change in the level of the wash water in the intake chamber. Can do. For this reason, a siphon action can be reliably generated in the toilet drainage channel.
- the cleaning tank apparatus of the present invention can perform toilet cleaning well.
- the intake device is A float member disposed in the intake chamber and having a set buoyancy; When the float member rises to the set ascending position, the intake port is closed to prevent the inflow of air from the toilet drainage side into the intake chamber, and the water level in the tank body outside the intake chamber is set. When the float member descends from the raised position by descending below the water level, the on-off valve may be provided to open the intake port and allow air to flow into the intake chamber from the toilet drainage side.
- the intake port is closed by an open / close valve at the start of toilet cleaning.
- the water level in the tank body outside the intake chamber begins to drop.
- the air level of the wash water in the intake chamber is closed by an open / close valve so that outside air does not flow into the intake chamber. ,It does not change.
- the negative pressure generated in the intake chamber becomes greater than the buoyancy of the float member, and the float member descends from the raised position.
- the on-off valve is lowered, so that the intake port is opened.
- the intake port is opened, there is a large water level difference between the intake chamber and the tank body outside the intake chamber. Due to this water level difference, the water level of the cleaning water in the intake chamber is rapidly lowered. Thereby, this intake device sucks air in the toilet drainage channel vigorously. Thus, in this washing tank device, the air in the toilet drainage channel can be sucked vigorously without increasing the size of the intake device.
- the intake port is open in the vertical direction
- the on-off valve has a shaft portion that reciprocates in the vertical direction in a state where the intake port is inserted, and a first valve body that is connected to a lower end of the shaft portion and abuts on a peripheral portion of the intake port,
- the float member is formed separately from the on-off valve. When the float member is lifted, the upper end can be brought into contact with the lower end of the on-off valve to push up the on-off valve.
- the on-off valve can be raised in the vertical direction regardless of the rising posture of the float member, and the first valve body of the on-off valve surely secures the intake port. Can be closed.
- the float member has a convex part that projects upward from the center part of the upper end part,
- the on-off valve may have a concave portion in which a central portion of a lower end portion is recessed upward and the convex portion contacts.
- the central part of the open / close valve is provided with a convex part by projecting the central part of the upper end part of the float member upward, and the central part of the lower end part of the open / close valve is recessed upward. It is possible to transmit the buoyancy of the float member. Further, since the buoyancy of the float member is concentrated on the tip of the convex portion, the on-off valve can be raised with a strong force. For this reason, the first valve body can reliably close the intake port.
- the intake port has a guide path extending vertically upward;
- the on-off valve has the shaft part formed longer than the guide path, the shaft part is guided by the guide path and reciprocates in the vertical direction, is connected to the upper end of the shaft part, and the float member is set When it descends from the lowered position, it may have a second valve body that abuts on the peripheral edge of the upper end opening of the guide path and prevents the inflow of air from the toilet drain path side into the intake chamber.
- the float member in the second half of the toilet flushing, while the wash water in the tank body is flowing out to the toilet bowl body, the float member is lowered from the set lowered position, so that the second valve body is in the guide path. It is possible to prevent the inflow of air from the communication path side into the intake chamber by contacting the peripheral edge of the upper end opening. That is, the suction of the air in the toilet drainage channel by the intake device can be terminated in the second half of the toilet cleaning. In this way, when the flow rate of the wash water flowing out from the tank body to the toilet body decreases, the suction device sucks the air in the toilet drainage channel, thereby cleaning the toilet bowl and the toilet water in the toilet drainage channel. It is possible to prevent the siphon action from being terminated at an early stage. For this reason, the siphon action can be continued, and the suspended filth and the like can be reliably discharged downstream of the toilet drainage channel.
- the float member is lowered from the lowering position set, so the on-off valve is lowered and the second valve body is the peripheral edge of the upper end opening of the guide path. To prevent the inflow of air from the communication path side into the intake chamber. That is, the backflow of the odor from the toilet drainage side can be prevented.
- a guide member provided in the intake chamber, storing the float member so as to reciprocate in the vertical direction, and having an upper opening provided at an upper end portion and a lower opening provided at a lower end portion;
- a float valve body that is provided in the lower opening and floats to close the lower opening when the water level in the intake chamber rises from below the lower end of the guide member.
- the intake device is A valve chamber that extends upward from the peripheral edge of the intake port and communicates with the toilet drainage channel via the intake channel;
- the on-off valve housed in the valve chamber;
- a float member disposed in the tank body outside the intake chamber to which wash water is directly supplied from the water supply device, and descending below a set water level lower than a water level in a standby state of toilet flushing;
- a holding unit holding an adsorbing member that moves up and down along the valve chamber in conjunction with the raising and lowering of the float member and attracts and opens the intake port when the distance from the on-off valve approaches a set range. Can do.
- the inlet is closed by the valve body at the start of toilet flushing.
- the opening / closing valve of the drain outlet of the tank body is opened and toilet flushing is started, the wash water stored in the tank body flows out from the drain outlet to the toilet bowl body, and the inside of the tank body outside the intake chamber is washed. The water level begins to drop.
- the intake port is closed by the valve body, the water level of the cleaning water in the intake chamber does not decrease at the highest water level.
- the float member starts to descend. As the float member is lowered, the holding portion holding the suction member is also lowered.
- the adsorbing member descending together with the holding portion attracts the valve body when the valve body approaches the set range. Thereby, the valve body moves from the intake port, and the intake port is opened. Since air does not flow into the intake chamber until the intake port is opened, the cleaning water level in the intake chamber remains at the highest level and does not drop. For this reason, when the intake port is opened, there is a large water level difference between the intake chamber and the tank body outside the intake chamber. When the intake port is opened due to the difference in water level, the water level of the cleaning water in the intake chamber rapidly decreases. Thereby, this inhalation device can suck air in the toilet drainage channel vigorously. Thus, in this washing tank device, the air in the toilet drainage channel can be sucked in vigorously without increasing the size of the intake device.
- this air intake device a predetermined amount of washing water flows out from the drain of the tank body to the toilet body, and continues to suck the air in the toilet drainage channel until the drain opening / closing valve is closed. In this way, while the siphon action is occurring, the intake device continues to suck air in the toilet drainage channel and reduces the air in the toilet drainage channel. Thereby, the flow of the washing water in the toilet drainage channel is not easily disturbed by the residual air, and the filth and the like in the toilet drainage channel can be transported well.
- One of the valve body and the attracting member may be formed from an object having a magnetic force such as a permanent magnet, and the other may be formed from a ferromagnetic body such as iron.
- the opening / closing mechanism of the intake port of the intake device can be configured without contact with the valve body, air leakage of the intake device can be prevented.
- the float member can be moved up and down while being guided by the outer surface of the side surface portion forming the intake chamber. In this case, it is not necessary to separately provide a guide for raising and lowering the float member smoothly. For this reason, the enlargement of the tank body can be prevented, and the washing tank apparatus can be easily manufactured.
- the float member and the holding portion can be interlocked via a support member whose length can be adjusted.
- the water level at which the float member descends can be changed by changing the length of the support member. That is, it is possible to change the timing at which the intake device starts sucking air in the toilet drainage channel. For this reason, the suction of the air in the toilet drainage channel can be started at the optimum timing according to the type of flush toilet, and the siphon action can be reliably generated in the toilet drainage channel.
- the valve body When the holding portion is lowered most, the valve body can close the intake port by lowering the suction member to a position where the suction member and the valve body cannot attract each other. In this case, when the tank body is drained in a cold region or the like, the intake port communicating with the toilet drainage channel can be closed with the valve body. For this reason, the backflow etc. of the odor from a toilet drainage channel can be prevented.
- a return portion is provided in the valve chamber so that the valve body does not rise above a set height, and when the holding portion rises most, the valve body does not attract the adsorption member and closes the intake port. obtain.
- the intake device can be put on standby in a state before the start of toilet flushing in which the intake port is closed by the valve body.
- the valve body may have a spherical shape, and the upper peripheral edge of the intake port may be formed on an inclined surface that is inclined inward. In this case, the intake port can be smoothly opened and closed by the valve body.
- the intake device is The intake chamber provided with a communication port, which is formed by a first side surface section defining the inside of the tank body and a first upper surface portion connected to an upper end of the first side surface portion and having an opening formed therethrough.
- a cylindrical guide portion that is located below the opening in the intake chamber, has a first small hole penetrating the bottom or bottom of the side surface, and has an upper end opened;
- a float member inserted through the opening of the intake chamber, inserted into the guide portion from the opening at the upper end of the guide portion, and lowered below a set water level lower than the maximum water level of the wash water in the intake chamber;
- a valve chamber formed by a second side surface portion that rises along the periphery of the opening, and a second upper surface portion that is connected to the second side surface portion and penetrates the intake port and the second small hole; Comprising The intake port and the second small hole are communicated with the toilet drainage channel through the intake passage, and the intake port is closed by the float member acting as the on-off
- the air inlet is closed by a float member.
- the opening / closing valve of the drain outlet of the tank body is opened and toilet flushing is started, the wash water stored in the tank body flows out from the drain outlet to the toilet bowl body, and the inside of the tank body outside the intake chamber is washed. The water level begins to drop.
- the intake port is closed by the float member, the level of the cleaning water in the intake chamber gradually decreases slowly according to the amount of air flowing in only through the second small hole. Thereafter, when the water level in the intake chamber falls below the set water level, the float member starts to descend. The intake port is opened as the float member descends.
- this air intake device a predetermined amount of washing water flows out from the drain of the tank body to the toilet body, and continues to suck the air in the toilet drainage channel until the drain opening / closing valve is closed. In this way, while the siphon action is occurring, the intake device continues to suck air in the toilet drainage channel and reduces the air in the toilet drainage channel. Thereby, the flow of the washing water in the toilet drainage channel is not easily disturbed by the residual air, and the filth and the like in the toilet drainage channel can be transported well.
- the float member may be formed on the upper side surface and may have a ventilation path that communicates the valve chamber and the intake chamber when raised.
- the air that has flowed into the valve chamber from the intake port and the second small hole can be satisfactorily flowed into the intake chamber.
- this air intake apparatus can suck
- the float member has a flange portion that extends outward at the periphery of the upper end portion, and the lower surface of the flange portion abuts against the upper surface of the periphery of the opening portion when lowered, and the opening portion can be closed.
- the opening communicating with the toilet drainage channel can be closed with the float member. For this reason, the backflow etc. of an odor can be prevented from a toilet drainage channel.
- the upper end of the guide portion may be located below the highest water level in the intake chamber.
- the level of the cleaning water in the intake chamber is uniformly reduced according to the flow rate to the cleaning water flowing out from the communication port into the water storage chamber.
- the water level of the cleaning water in the intake chamber drops rapidly.
- the cleaning water in the guide portion is discharged only from the first small hole, so that the level of the cleaning water in the guide portion is the intake chamber outside the guide portion. Decreases more slowly than the washing water level. For this reason, it is possible to lengthen the time from when the float member opens the intake port until the opening is closed.
- the float member does not close the opening and the intake device is placed in the toilet drainage channel.
- the air can continue to be sucked.
- the intake device continues to suck air in the toilet drainage channel and reduces the air in the toilet drainage channel.
- a flush toilet of the present invention comprises a toilet bowl body having a toilet bowl and a toilet drainage channel communicating with the downstream side of the toilet bowl, and the washing tank device,
- the intake chamber is communicated with the toilet drainage channel via the intake channel
- the drainage port of the tank body is communicated with a rim water channel provided at an inner peripheral edge of the upper end opening of the toilet bowl.
- FIG. 1 is an exploded perspective view showing an intake device of Embodiment 1.
- FIG. 1 is sectional drawing which shows the standby state of toilet bowl washing
- FIG. It is sectional drawing which shows a suction state in the intake device of Example 1.
- FIG. It is sectional drawing which shows the suction completion state in the intake device of Example 1.
- FIG. 1 is an exploded perspective view showing an intake device of Embodiment 1.
- FIG. is sectional drawing which shows the standby state of toilet bowl washing
- FIG. It is sectional drawing which shows a suction state in the intake device of Example 1.
- FIG. It is sectional drawing which shows
- FIG. 3 is a schematic view showing a flush toilet of Example 2. It is sectional drawing which shows the standby state of toilet bowl washing
- 6 is a cross-sectional view showing a suction state in the intake device of Embodiment 2.
- FIG. 6 is a cross-sectional view showing a suction state in the intake device of Embodiment 2.
- FIG. 6 is a cross-sectional view showing a suction state in the intake device of Embodiment 2.
- FIG. 10 is a cross-sectional view showing a suction state in the intake device of the fourth embodiment. It is sectional drawing which shows the draining state of a tank main body in the intake device of Example 4.
- FIG. 10 is a cross-sectional view illustrating an intake device according to a fifth embodiment. It is sectional drawing which shows the principal part of the intake device of Example 5.
- Embodiments 1 to 5 embodying the washing tank apparatus and flush toilet of the present invention will be described with reference to the drawings.
- the flush toilet of Example 1 includes a toilet main body 1 and a cleaning tank device 10 placed on the rear upper surface of the toilet main body 1.
- the toilet body 1 includes a toilet bowl 2 and a toilet drainage channel 3 communicating with the downstream side of the toilet bowl 2. Further, a rim water passage 4 is provided on the inner peripheral edge of the upper opening of the toilet bowl 2.
- the cleaning tank device 10 includes a tank body 20, a ball tap 30 that is a water supply device, and an intake device 40.
- the tank body 20 has a drain port 22 that is opened and closed by a float valve 21 that is an on-off valve.
- the tank body 20 can store wash water for washing the toilet body 1.
- the float valve 21 is connected to a cleaning handle (not shown) via a ball chain 23.
- the drain port 22 communicates with the rim water passage 4 through the washing water passage 5.
- the tank body 20 has an overflow pipe 24.
- the overflow pipe 24 has a lower end communicating with the cleaning water channel 5 below the drain port 22 and an upper end rising above the maximum water level LA1 of the cleaning water in the tank body 20.
- the ball tap 30 has a water discharge pipe 31 and an opening / closing valve 32 provided in the water discharge pipe 31.
- the water discharge pipe 31 is connected to a water supply pipe drawn out to the toilet room where the flush toilet is installed, and can discharge the washing water directly into the tank body 20.
- the on-off valve 32 is opened and closed by raising and lowering the floating ball 33.
- the float 33 moves up and down according to the change in the water level of the cleaning water in the tank body 20. That is, when the floating ball 33 is lowered, the on-off valve 32 is opened, and the cleaning water is discharged directly from the water discharge pipe 31 into the tank body 20.
- the on-off valve 32 is closed by the rise of the float 33 when the water level of the cleaning water in the tank body 20 rises to the highest water level LA1. That is, the highest water level LA1 is the water level in the standby state of toilet flushing.
- the intake device 40 includes an intake chamber 41, a communication passage 42, a float member 43, an on-off valve 44, a guide member 45, and a float valve body 46.
- the intake chamber 41 is housed in the tank body 20 and is formed in a case 41 ⁇ / b> A that partitions the tank body 20.
- the case 41 ⁇ / b> A has a lower end opening 41 ⁇ / b> B whose lower end opens into the tank body 20.
- the case 41 ⁇ / b> A is arranged with a gap between the lower end opening 41 ⁇ / b> B and the bottom surface of the tank body 20. That is, the intake chamber 41 and the tank body 20 outside the intake chamber 41 (hereinafter referred to as the water storage chamber 25) communicate with each other via the lower end opening 41B. For this reason, the wash water can flow into and out of the intake chamber 41 from the lower end opening 41B.
- the case 41A has a cylindrical portion 41C that rises above the highest water level LA1 in the tank body 20 on the upper surface, and the cylindrical portion 41C is open in the vertical direction.
- the lower part of the fitting member 47 is inserted into the cylindrical part 41C from above.
- packing P1 is engage
- the fitting member 47 penetrates the center part in the vertical direction, and forms a guide path 47B for guiding a shaft part 44A of the on-off valve 44 described later.
- the lower end opening of the guide path 47B forms an intake port 47A that opens in the vertical direction.
- the intake chamber 41 is provided with the intake port 47A having the guide path 47B extending vertically upward above the maximum water level LA1 (water level in the toilet flush standby state).
- the fitting member 47 has a convex portion 47D that protrudes downward in a ring shape along the periphery of the air inlet 47A. Since the upper surface of the first valve body 44B of the on-off valve 44 described later contacts this convex portion 47D, the intake port 47A can be reliably closed by the first valve body 44B.
- the guide path 47B has an upper end opening 47C whose peripheral edge protrudes upward. Since the lower surface of the second valve body 44C of the on-off valve 44, which will be described later, comes into contact with the peripheral edge protruding upward, the upper end opening 47C can be reliably closed by the second valve body 44C.
- the connecting member 48 is above the fitting member 47 and forms an internal space 48A in which a second valve body 44C of an on-off valve 44 described later moves up and down.
- the connecting member 48 forms a communication path 42 that extends upward from the upper portion of the internal space 48A and is bent in the horizontal direction.
- the communication path 42 has a communication port 42A that opens in the horizontal direction.
- the communication port 42 ⁇ / b> A is connected to an intake passage 6 that communicates with the toilet drainage passage 3.
- the connecting member 48 has an insertion port 48B through which the strainer member 49 is inserted in a side surface facing the communication port 42A of the communication passage 42 extending in the horizontal direction.
- the strainer member 49 has a cylindrical shape and closes the end surface on the insertion port 48B side in a state of being inserted into the communication path 42.
- the strainer member 49 is formed with a plurality of slits 49A formed on a side surface facing upward from the lateral direction in a state where the strainer member 49 is inserted into the communication path 42, and the side surface facing downward is closed. For this reason, insects such as flies that have entered the communication passage 42 from the intake passage 6 side communicating with the toilet drainage passage 3 are captured by the strainer member 49 and prevented from falling down where the on-off valve 44 is incorporated. be able to.
- the strainer member 49 Since the strainer member 49 is closed on the side surface facing downward, even a bug having a width equal to or smaller than the width of the slit 49A can prevent the strainer member 49 from falling downward.
- the strainer member 49 has a packing P3 fitted in a groove formed on the outer peripheral surface on the insertion port 48B side. For this reason, when the strainer member 49 is inserted into the communication path 42, the packing P3 contacts the inner peripheral surface of the connecting member 48 inside the insertion port 48B, and the outer peripheral surface of the strainer member 49 and the inner peripheral surface of the connecting member 48 And are connected in an airtight state.
- the on-off valve 44 includes a shaft portion 44A, a first valve body 44B integrally provided at the lower end of the shaft portion 44A, and a second valve body 44C attached to the upper end of the shaft portion 44A inserted through the guide path 47B from below. It consists of and.
- the shaft section 44A has a horizontal cross section formed in a cross shape.
- the first valve body 44B has a disk shape, and a sealing material is attached to the upper surface. Further, the first valve body 44B has a recess 44D that is recessed upward in the center of the lower surface. The recess 44D is formed in a mountain shape.
- the second valve body 44C has a disk shape, and a sealing material is attached to the lower surface.
- the guide member 45 is formed in a cylindrical shape, opened upward, and has a circular lower opening 45B penetrating the lower end surface.
- the inner diameter of the guide member 45 is formed in two stages where the upper part is larger than the lower part.
- the inner diameter of the lower portion of the guide member 45 can be inserted into a body portion 43A of the float member 43, which will be described later, but the upper end peripheral portion of the body portion 43A in which the overhang portion 43D is formed cannot be inserted. ing.
- the upper end of the guide member 45 is connected to the lower end of the fitting member 47 and is suspended from the intake chamber 41 formed in the case 41A.
- the guide member 45 has a plurality of upper openings 45A penetrating through the upper peripheral surface.
- the float valve body 46 is formed in a disc shape and has buoyancy.
- the float valve body 46 has four locking pieces 46A formed on the upper surface so as to extend upward.
- the locking piece 46A has a claw portion 46B projecting outward at the upper end portion.
- the locking piece 46A can be inserted into the lower opening 45B of the guide member 45 from below, and the claw portion 46B can be locked to the periphery of the lower opening 45B of the guide member 45.
- the float valve body 46 is formed so that the outer diameter is larger than the inner diameter of the lower opening 45 ⁇ / b> B of the guide member 45.
- the float valve body 46 reciprocates in the vertical direction, and closes the lower opening 45B of the guide member 45 when lifted by buoyancy.
- the float member 43 has a cylindrical body portion 43A having an opening at the lower end surface, a cylindrical intermediate portion 43B formed continuously above the body portion 43A and having a diameter smaller than the diameter of the body portion 43A,
- the center portion 43B is formed of a conical convex portion 43C that protrudes upward from the central portion of the upper surface thereof.
- the trunk portion 43A has overhang portions 43D that protrude in the lateral direction at a plurality of locations on the peripheral edge of the upper end.
- the float member 43 is filled with air and has a set buoyancy. The float member 43 is inserted from the upper opening of the guide member 45 and disposed.
- the overhang portion 43D provided at the upper peripheral edge of the trunk portion 43A has an inner diameter on the inner peripheral surface of the lower portion of the guide member 45. Can not be inserted because it overhangs. In this manner, the overhang portion 43D is formed so that the vertical direction of the float member 43 is not mistakenly inserted into the guide member 45.
- the float member 43 is arranged so that when it rises, the tip of the conical convex portion 43C comes into contact with the center of the concave portion 44D that is recessed in the central portion of the lower surface of the first valve body 44B of the on-off valve 44.
- the on-off valve 44 can be raised in the vertical direction regardless of the rising posture of the float member 43, and the first valve body of the on-off valve 44. 44B can reliably close the inlet 47A.
- the convex portion 43C is provided in the central portion of the float member 43 and the concave portion 44D is provided in the central portion of the lower end portion of the on-off valve 44, the buoyancy of the float member 43 can be transmitted to the central portion of the on-off valve 44. it can.
- the on-off valve 44 can be raised with a strong force. For this reason, the first valve body 44B can reliably close the intake port 47A.
- the inlet 47A is provided above the maximum water level LA1 (water level in the toilet cleaning standby state), the change in the level of the cleaning water in the intake chamber 41 can be utilized to the maximum, and the toilet drainage channel The air in 3 can be sufficiently sucked. For this reason, the siphon action can be reliably generated in the toilet drainage channel 3.
- the cleaning tank apparatus 10 of Example 1 can perform toilet cleaning well.
- the suction device 40 finishes the suction of the air in the toilet drainage channel 3. For this reason, when the flow rate of the washing water flowing out from the tank body 20 to the toilet body 1 after that decreases, the air suction device 40 sucks the air in the toilet drainage channel 3, whereby the toilet bowl 2 and the toilet drainage. It is possible to prevent the washing water in the passage 3 from being insufficient and the siphon action from being terminated early. Therefore, in this flush toilet, the siphon action continues until the end of toilet flushing, and the floating waste can be reliably discharged downstream of the toilet drainage channel 3.
- the cleaning water level in the intake chamber 41 outside the guide member 45 rises and the cleaning water flows into the guide member 45 from the upper opening 45A of the guide member 45.
- the float member 43 rises, pushes up the on-off valve 44, and the intake port 47A is closed by the first valve body 44B of the on-off valve 44.
- the intake device 40 can suck the air in the toilet drainage channel 3 satisfactorily.
- the float member 43 is lowered from the lowered position, so that the on-off valve 44 is lowered.
- the lower surface of the second valve body 44C comes into contact with the peripheral edge of the upper end opening 47C of the guide path 47B, and the upper end opening 47C is closed by the second valve body 44C.
- Example 2 As shown in FIGS. 11 to 17, the flush toilet of the second embodiment is different from the first embodiment in the configuration of the intake device 140.
- Other configurations are the same as those of the first embodiment, and the same components are denoted by the same reference numerals and detailed description thereof is omitted.
- the cleaning tank device 110 includes a tank body 20, a ball tap 30 that is a water supply device, and an intake device 140.
- the intake device 140 includes an intake chamber 141, an intake port 142, a valve chamber 143, a valve body 144 that is an on-off valve, a float member 145, and a holding portion 146 that holds an adsorption member 147.
- the intake chamber 141 is formed by a cylindrical side surface portion 141A that defines the tank body 20 and extends in the vertical direction, and an upper surface portion 141B that is coupled to the upper end of the side surface portion 141A.
- the upper surface portion 141B is disposed slightly above the highest water level LA1 (water level in the toilet cleaning standby state) in the tank body 20.
- a communication port 141C is provided in the lower end portion of the side surface portion 141A so as to face in the lateral direction.
- the intake chamber 141 communicates with the inside of the tank body 20 outside the intake chamber 141 (hereinafter referred to as the water storage chamber 25) through a communication port 141C.
- a cylindrical portion 141D extending upward is formed at the center of the upper surface portion 141B of the intake chamber 141.
- a flange portion 141E extending outward is formed on the outer edge of the upper end of the cylindrical portion 141D.
- a partition portion 142A is formed in the middle portion of the inner side surface of the cylindrical portion 141D.
- the intake port 142 is provided at the highest water level LA1 (water level in the toilet cleaning standby state) in the tank body 20 and above the highest water level LB1 in the intake chamber 141. For this reason, the intake port 142 and the valve body 144 are not submerged in the cleaning water, and it is possible to prevent the intake port 142 and the valve body 144 from being fixed by a cleaning liquid or the like added to the cleaning water. Moreover, since the change in the level of the washing water in the intake chamber 141 can be utilized to the maximum, the intake device 140 can sufficiently suck air from the toilet drainage channel 3.
- the upper peripheral edge of the intake port 142 is formed as an inclined surface inclined inward, and serves as a valve seat 142B of the valve body 144. For this reason, the valve body 144 can be moved smoothly, and the intake port 142 can be opened and closed smoothly.
- a valve chamber 143 is formed in the cylindrical portion 141D above the partition portion 142A.
- An upper end opening 143 ⁇ / b> A of the valve chamber 143 communicates with the upper end portion of the toilet drainage channel 3 through the intake passage 6.
- a spherical valve body 144 that can open and close the intake port 142 is housed in the valve chamber 143.
- the valve body 144 is formed by resin coating around an iron sphere.
- a return portion 143 ⁇ / b> B that protrudes inward is provided at the upper part of the inner surface of the valve chamber 143. The return portion 143B prevents the valve body 144 from rising above this height.
- the float member 145 is formed in a cylindrical shape having a diameter that is slightly larger than the side surface portion 141 ⁇ / b> A that forms the intake chamber 141.
- the float member 145 passes through the intake chamber 141 and is disposed in the water storage chamber 25. Since the gap between the inner side surface of the float member 145 and the outer side surface of the side surface portion 141A that forms the intake chamber 141 is very small, the float member 145 is guided by the outer side surface of the side surface portion 141A that forms the intake chamber 141 and moves up and down. . For this reason, it is not necessary to separately provide a guide for raising and lowering the float member 145 smoothly, the tank main body 20 can be prevented from being enlarged, and the cleaning tank device 110 can be easily manufactured.
- the holding portion 146 includes a disc-shaped bottom plate portion 146A provided with an opening through which the cylindrical portion 141D is inserted in the center portion, a cylindrical side wall portion 146B rising along the outside of the opening of the bottom plate portion 146A, and the side wall portion 146B.
- the upper plate portion 146 ⁇ / b> C has a disk shape extending inwardly from the inner edge of the upper end and having an opening through which the cylindrical portion 141 ⁇ / b> D is inserted.
- the bottom plate portion 146A has a bar-like support member 145A provided to extend downward from a plurality of locations on the outer peripheral edge.
- a float member 145 is connected to the lower end of the support member 145A. The holding part 146 formed in this way can be moved up and down along the cylindrical part 141D as the float member 145 moves up and down.
- the attracting member 147 is formed of an annular permanent magnet.
- the outer diameter of the adsorption member 147 is formed to be slightly smaller than the diameter of the inner peripheral surface of the side wall portion 146 ⁇ / b> B of the holding portion 146. Further, the inner diameter of the adsorption member 147 is slightly larger than the diameter of the outer peripheral surface of the cylindrical portion 141D and smaller than the outer diameter of the flange portion 141E.
- the suction member 147 is disposed in the holding portion 146 with the cylindrical portion 141 ⁇ / b> D inserted through a through hole formed in the center. The distance between the upper surface of the bottom plate portion 146 ⁇ / b> A of the holding portion 146 and the lower surface of the upper plate portion 146 ⁇ / b> C is formed larger than the thickness of the adsorption member 147.
- the suction member 147 formed in this way can be moved up and down along the cylindrical portion 141D. That is, the adsorbing member 147 can be raised to a position (most elevated position) where it is locked to the flange 141E, and is placed on the bottom plate portion 146A of the holding portion 146 that is overlaid on the upper surface portion 141B ( It can be lowered to the lowest position.
- the suction member 147 attracts the valve body 144 when the distance from the valve body 144 approaches the set range. Thereby, the valve body 144 moves and the intake port 142 is opened.
- the suction member 147 located at the highest position is lowered by the lowering of the holding portion 146 which is lowered as the float member 145 is lowered.
- the adsorbing member 147 moves the valve body 144 by attracting with the valve body 144 while descending, and the intake port 142 is opened.
- the adsorbing member 147 is not lowered by its own weight due to the attractive force between the adsorbing member 144 and the valve body 144.
- the holding portion 146 is lowered, and the adsorption member 147 is lowered to the lowest lowered position by being pushed down by the upper plate portion 146C to a position where the adsorption member 147 cannot be attracted to the valve body 144.
- valve body 144 since the valve body 144 cannot attract the suction member 147, the valve body 144 moves to a position where the intake port 142 is closed.
- the float member 145 can be lowered below a set water level LA2 that is lower than the highest wash water level LA1 in the water storage chamber 25.
- the adsorbing member 147 located at the lowest position is pushed up by the bottom plate portion 146A of the holding portion 146 and rises as the holding portion 146 rises as the float member 145 rises.
- the suction member 147 moves the valve body 144 by attracting with the valve body 144 in the middle of ascending, and the intake port 142 is opened. Since the valve body 144 cannot rise above the return portion 143B, the valve body 144 and the suction member 147 are not attracted to each other and the valve body 144 is dropped when the suction member 147 is raised to the highest position. Then, the intake port 142 is closed.
- the wash water in the water storage chamber 25 continues to flow out from the drain port 22 to the rim water passage 4, and when the water level in the water storage chamber 25 falls below the set water level LA2, the float member 145 descends as shown in FIG. Begin to. Thereby, the holding part 146 holding the adsorbing member 147 also starts to descend. At the beginning when the float member 145, the holding portion 146, and the suction member 147 begin to descend, the suction member 147 and the valve body 144 are not attracted to each other because the intervals are outside the set range. For this reason, since the intake port 142 remains closed by the valve body 144, the cleaning water in the intake chamber 141 does not decrease and remains at the highest water level LB1.
- the intake port 142 When the intake port 142 is opened due to this water level difference, as shown in FIGS. 15 and 16, the water level of the cleaning water in the intake chamber 141 rapidly decreases and is the same level as the water level of the cleaning water in the water storage chamber 25. It will be. In this process, the intake device 140 sucks the air in the toilet drainage channel 3 through the intake channel 6 vigorously. Thus, in this washing tank device 110, the air in the toilet drainage channel 3 can be sucked in vigorously without increasing the size of the intake device 140.
- the suction flow rate of the intake device 140 is also reduced. Gradually get smaller. For this reason, in the second half of toilet flushing, it is possible to prevent the siphoning action in the toilet drainage channel 3 from being terminated due to the suction flow rate of the intake device 40 being too large, and the siphoning action can be continued.
- this air intake device 140 a predetermined amount of washing water flows out from the drain port 22 of the tank body 20 into the rim water channel 4 until the drain port 22 is closed by the float valve 21. Continue to suck in air. For this reason, while the siphon action is occurring, the air intake device 140 continues to suck the air in the toilet drainage channel 3 and reduces the air in the toilet drainage channel. Thereby, the flow of the washing water in the toilet drainage channel 3 is not easily disturbed by the residual air, and the filth and the like in the toilet drainage channel 3 can be transported well.
- the flush toilet of Example 2 can perform toilet cleaning well.
- the suction member 147 and the valve body 144 cannot be attracted to each other, and the valve body 144 falls to the intake port 142.
- the cleaning water level in the intake chamber 141 tends to rise so as to be equal to the water level in the water storage chamber 25, so that the water level stays above the water storage chamber 25.
- the valve body 144 is pushed up or shifted from the air inlet 142 by the pressure of air. In this way, the air in the intake chamber 141 flows out to the intake passage 6 side, and the level of the cleaning water in the intake chamber 141 can rise to the maximum water level LB1.
- the open / close valve 32 of the ball tap 30 is closed. Further, the suction member 147 is raised to the highest position by the bottom plate portion 146A of the holding portion 146. In this state, the suction member 147 and the valve body 144 cannot attract each other, and the intake port 142 is closed by the valve body 144. Further, from the time when the float valve 21 closes the drain port 22 to the time when the open / close valve 32 of the ball tap 30 is closed, the water supply channel, the overflow pipe 24 and the cleaning water channel 5 branched from the ball tap 30 are used. Wash water is supplied to the rim water passage 4 and a water seal is formed in the toilet bowl 2. Thus, as shown in FIG.11 and FIG.12, the flush toilet bowl returns to the standby state of toilet flushing.
- the cleaning tank device 110 When the tank body 20 is drained in a cold district or the like, the cleaning tank device 110 almost discharges the cleaning water in the tank body 20 as shown in FIG.
- the bottom plate portion 146A overlaps the upper surface portion 141B.
- the adsorption member 147 is pushed down to a position where it cannot be attracted to the valve body 144 by the upper plate portion 146C of the holding portion 146, and is lowered to the lowest lowered position. Further, since the valve body 144 cannot attract the suction member 147, the valve body 144 moves to a position where the intake port 142 is closed. Therefore, it is possible to prevent odor backflow from the toilet drainage channel 3 when the tank body 20 is drained.
- the flush toilet bowl according to the third embodiment is configured such that the length of the support member 245 of the intake device 240 can be adjusted.
- Other configurations are the same as those of the second embodiment, and the same components are denoted by the same reference numerals and detailed description thereof is omitted.
- the support member 245 is connected to the first support member 245A extending downward from a plurality of locations on the outer peripheral edge of the bottom plate portion 146A of the holding portion 146, the first support member 245A, and a plurality of lower ends connected to the float member 145.
- the first support member 245A is provided with two bolt holes N1 and N2 arranged in the vertical direction.
- a through hole H through which the bolt B is inserted is provided at the upper end of the second support member 245B.
- the length of the support member 245 is adjusted in two stages. can do. Thereby, the water level of the washing water in the water storage chamber 25 where the float member 145 descends can be changed. Thereby, the timing at which the intake device 240 starts to suck air in the toilet drainage channel 3 can be changed. For this reason, the suction of the air in the toilet drainage channel 3 can be started at an optimal timing according to the type of flush toilet, and the siphon action can be reliably generated in the toilet drainage channel.
- Example 4 As shown in FIGS. 19 to 23, the flush toilet of the fourth embodiment is different from the first embodiment in the configuration of the intake device 340. Other configurations are the same as those of the first embodiment, etc., and the same components are denoted by the same reference numerals and detailed description thereof is omitted.
- the cleaning tank device 310 includes a tank body 20, a ball tap 30 that is a water supply device, and an intake device 340.
- the intake device 340 includes an intake chamber 341, a guide portion 342, a float member 343, and a valve chamber 344.
- the intake chamber 341 is defined by a cylindrical first side surface portion 341A that divides the tank body 20 and extends in the vertical direction, and a first upper surface portion 341B connected to the upper end of the first side surface portion 341A. .
- a circular opening 341D is provided through the center of the first upper surface portion 341B.
- the opening 341D has a standing wall 341E that rises from the edge.
- the first upper surface portion 341B is disposed slightly above the highest wash water level LA1 in the tank body 20 (water level in the toilet flush standby state).
- a communication port 341C is provided in the lower end portion of the first side surface portion 341A so as to face in the lateral direction.
- the intake chamber 341 communicates with the inside of the tank body 20 outside the intake chamber 341 (hereinafter referred to as the water storage chamber 25) through a communication port 341C.
- the guide part 342 has a cylindrical shape with an upper end opened and a lower end closed.
- the guide portion 342 is erected in the intake chamber 341 and below the opening 341D.
- the inner diameter of the guide part 342 is substantially equal to the opening diameter of the opening part 341D.
- a first small hole 342 ⁇ / b> A is provided in the lower part of the side surface of the guide part 342.
- the upper end 342T of the guide part 342 is located below the maximum water level LB1 of the cleaning water in the intake chamber 341.
- the float member 343 is formed of a cylindrical member 343A whose upper end is closed and a foam material 343B having buoyancy injected into the inside.
- the outer shape of the cylindrical member 343A is smaller than the inner diameter of the guide portion 342 and the opening diameter of the opening portion 341D.
- a hollow portion 343C into which the foam material 343B is not injected is formed.
- vertically long vent holes 343D are provided at two opposing positions.
- a flange portion 343 ⁇ / b> E extending outward is formed on the periphery of the upper end portion of the float member 343.
- the outer shape of the flange portion 343E is circular and is larger than the opening 341D.
- a sealing material 343S is attached to the lower surface of the flange portion 343E.
- the float member 343 is inserted into the guide part 342 from the opening at the upper end of the guide part 342 through the opening part 341D. There is a slight gap between the outer surface of the float member 343 and the inner surface of the guide portion 342, and the float member 343 is guided by the inner surface of the guide portion 342 and moves up and down. The float member 343 descends below the set water level LB2 that is lower than the maximum water level LB1 of the cleaning water in the intake chamber 341.
- the valve chamber 344 is formed by a second side surface portion 344A that rises along the periphery of the opening 341D and a second upper surface portion 344B that is connected to the upper end of the second side surface portion 344A.
- An intake port 344C having a large opening area and a second small hole 344D having a small opening area are provided through the second upper surface portion 344B.
- the inlet 344C is provided above the water levels LA1 and LB1 in the standby state of toilet flushing.
- Three sealing materials 44S are attached to the lower surface of the peripheral edge of the inlet 344C.
- the intake port 344C and the second small hole 344D communicate with the toilet drainage channel 3 through the intake channel 6.
- the float member 343 When the float member 343 rises, the upper surface of the float member 343 comes into contact with the sealing material 344S attached to the lower surface of the peripheral edge of the intake port 344C. Thereby, the float member 343 acts as an on-off valve, and the flow path member 343 closes the intake port 344C.
- This state is the position where the float member 343 is most raised (hereinafter referred to as the highest position of the float member 343).
- the seal member 343S attached to the lower surface of the flange portion 343E of the float member 343 comes into contact with the upper end surface of the standing wall portion 341E rising from the edge portion of the opening 341D. Accordingly, the opening 341D is closed by the float member 343.
- This state is the lowest position of the float member 343 (hereinafter referred to as the lowest position of the float member 343).
- an air passage that connects the valve chamber 344 and the intake chamber 341 is formed by the vent hole 343D and the hollow portion 343C of the float member 343. Therefore, the air that has flowed into the valve chamber 344 from the intake port 344C and the second small hole 344D can be satisfactorily flowed into the intake chamber 341. Therefore, the intake device 340 can suck the air in the toilet drainage channel 3 satisfactorily, and can generate a siphon action in the toilet drainage channel 3 favorably.
- the cleaning water in the guide part 342 When the cleaning water level in the intake chamber 341 falls below the upper end 342T of the guide part 342, the cleaning water in the guide part 342 is discharged only from the first small hole 342A, so the cleaning water in the guide part 342 is discharged.
- the water level LC slowly decreases as compared to the decrease in the level of the cleaning water in the intake chamber 341 outside the guide portion 342. Therefore, the time from when the float member 343 opens the intake port 344C to when the opening 341D is closed (until the float member 343 descends to the lowest position) can be lengthened.
- a predetermined amount of washing water flows out from the drain port 22 of the tank body 20 to the rim water passage 4, and the float member 343 does not close the opening 341D until the drain port 22 is closed by the float valve 21.
- the intake device 340 can continue to suck air in the toilet drainage channel 3.
- the suction flow rate of the intake device 340 is also reduced. Gradually get smaller. For this reason, in the second half of toilet flushing, it is possible to prevent the siphoning action in the toilet drainage channel 3 from being terminated due to the suction flow rate of the intake device 340 being too large, and the siphoning action can be continued.
- this intake device 340 a predetermined amount of washing water flows out from the drain port 22 of the tank body 20 to the rim water channel 4, and the inside of the toilet drain channel 3 until the drain port 22 is closed by the float valve 21. Continue to suck in air. For this reason, while the siphon action is occurring, the intake device 340 continues to suck the air in the toilet drainage channel 3 and reduces the air in the toilet drainage channel 3. Thereby, the flow of the washing water in the toilet drainage channel 3 is not easily disturbed by the remaining air, and the filth in the toilet drainage channel 3 can be transported well.
- the flush toilet of Example 4 can perform toilet cleaning well.
- the washing tank device 310 when water is drained from the tank body 20 in a cold district or the like, as shown in FIG. 23, the washing water in the tank body 20 is almost discharged and the float member 343 descends to the lowest level. Position and the opening 341D is closed. For this reason, when the tank body 20 drains water, it is possible to prevent odor backflow or the like from the toilet drainage channel 3.
- Example 5 As shown in FIGS. 24 and 25, the flush toilet of the fifth embodiment is different from the fourth embodiment in the configuration of the intake device 350. Other configurations are the same as those of the fourth embodiment, and the same reference numerals are given to the same configurations, and detailed description thereof is omitted.
- the intake device 350 includes an intake chamber 351, a guide portion 352, a float member 353, and a valve chamber 354.
- the intake chamber 351 is defined by a cylindrical first side surface portion 351A that divides the tank body 20 and extends in the vertical direction, and a first upper surface portion 351B that is coupled to the upper end of the first side surface portion 351A. .
- a circular opening 351D is provided through the first upper surface portion 351B.
- a ring-shaped convex portion 351E protruding upward is formed along the peripheral edge portion of the opening 351D.
- the first upper surface portion 351 ⁇ / b> B is disposed slightly above the highest water level in the tank body 20 (water level in the toilet flush standby state).
- a lower end portion of the first side surface portion 351A is opened downward to form a communication port 351C.
- a gap is provided between the bottom surface of the tank main body 20 and the lower end portion of the first side surface portion 351A. For this reason, the intake chamber 351 and the water storage chamber 25 are communicated with each other via the communication port 351C.
- the guide part 352 is formed of a cylindrical side part 352A having an open upper end and a bottom part 352B connected to the lower end of the side part 352A and having a first small hole 352C penetrating therethrough.
- the upper end of the side surface portion 352A is connected to the lower surface of the peripheral edge of the opening portion 351D penetrating the upper surface portion 351B of the intake chamber 351.
- a plurality of vent holes 352D are provided through the upper end portion of the side surface portion 352A.
- the float member 353 is injected with a foam material 353B having buoyancy therein, and has a cylindrical portion 353A whose upper end is closed, a disk-shaped upper surface portion 353D, an upper end surface of the cylindrical portion 353A, and a lower end surface of the upper end portion 353D.
- the connecting portion 353C is connected to the upper surface of the upper surface portion 353D, and the disk-shaped sealing member 353S is connected to the upper surface of the upper surface portion 353D.
- the connecting portion 353C has a cross shape in the horizontal cross section. The cylindrical portion 353A, the upper end portion 353D, and the connecting portion 353C are inserted into the guide portion 352 from the opening portion 351D.
- the seal member 353S has an outer shape larger than the opening diameter of the opening 351D, and forms a flange portion 353E.
- the float member 353 descends below a set water level lower than the maximum water level in the intake chamber 351, and moves up and down with changes in the water level in the guide portion 352.
- the lower surface of the flange portion 353E comes into contact with the upper surface of the convex portion 351E, and the seal member 353S closes the opening portion 351D.
- the valve chamber 354 is formed by a second side surface portion 354A that rises along the periphery of the opening 351D and a second upper surface portion 354B that is connected to the inner surface of the second side surface portion 354A.
- An intake port 354C having a large opening area and a second small hole 354D having a small opening area are provided through the second upper surface portion 354B.
- the opening diameter of the air inlet 354 ⁇ / b> C is smaller than the outer shape of the seal member 353.
- a ring-shaped convex portion 354E protruding downward is formed at the peripheral edge portion of the air inlet 354C.
- the air inlet 354C and the second small hole 354D communicate with the toilet drainage channel 3 through the air intake channel 6.
- the float member 353 When the float member 353 is raised, the upper surface of the seal member 353S comes into contact with the lower surface of the convex portion 354E. As a result, the float member 353 acts as an on-off valve, and the intake port 354C is closed by the seal member 353S. This state is the highest ascending position of the float member 353.
- the valve chamber 354 is formed by the vent hole 352D penetrating the connecting portion 353C of the float member 353 and the side surface portion 352A of the guide portion 352.
- a ventilation path that communicates with the intake chamber 351 is formed. For this reason, the air that has flowed into the valve chamber 354 from the intake port 354C and the second small hole 354D can be satisfactorily flowed into the intake chamber 351. Therefore, the air intake device 350 can suck the air in the toilet drainage channel 3 satisfactorily and can generate a siphon action in the toilet drainage channel 3 favorably.
- the level of the cleaning water in the guide part 352 decreases the level of the cleaning water in the intake chamber 351 outside the guide part 352. Compared to slow down. For this reason, it is possible to lengthen the time from when the seal member 353S of the float member 353 opens the air inlet 354C until the opening 351D is closed. As a result, a predetermined amount of cleaning water flows out from the drain port 22 of the tank body 20 to the rim water passage 4, and the seal member 353S of the float member 353 opens the opening 351D until the drain port 22 is closed by the float valve 21.
- the air suction device 350 can continue to suck air in the toilet drainage channel 3 without closing.
- the suction flow rate of the intake device 350 is also reduced. Gradually get smaller. For this reason, in the second half of toilet flushing, it is possible to prevent the siphoning action in the toilet drainage channel 3 from being terminated due to the suction flow rate of the intake device 350 being too large, and the siphoning action can be continued.
- the float valve 21 closes the drain port 22 immediately before the level of the cleaning water in the intake chamber 351 and the water storage chamber 25 drops below the communication port 351C. Thereby, the suction device 350 ends the suction of the air in the toilet drainage channel 3. Moreover, since the supply of the washing water into the toilet drainage channel 3 decreases, the siphon action in the toilet drainage channel 3 ends. Thus, in this air intake device 350, a predetermined amount of washing water flows out from the drain port 22 of the tank body 20 into the rim water channel 4 until the drain port 22 is closed by the float valve 21. Continue to suck in air.
- the intake device 350 continues to suck the air in the toilet drainage channel 3 and reduces the air in the toilet drainage channel 3. Thereby, the flow of the washing water in the toilet drainage channel 3 is not easily disturbed by the remaining air, and the filth in the toilet drainage channel 3 can be transported well.
- the flush toilet of Example 5 can perform toilet cleaning well.
- the washing water is discharged directly from the water discharge pipe 31 of the ball tap 30 into the water storage chamber 25. Since the intake port 354C of the intake device 350 is open, the cleaning water also flows into the intake chamber 351 through the communication port 351C. For this reason, the water level of the wash water in the water storage chamber 25 and the intake chamber 351 rises at the same height. Washing water also flows into the guide portion 352 from the first small hole 352C and the vent hole 352D. The float member 353 rises as the cleaning water level in the guide part 352 rises. When the water storage chamber 25 and the intake chamber 351 reach the maximum water level, the open / close valve 32 of the ball tap 30 is closed.
- the float member 353 reaches the highest position, and the air inlet 354C is closed.
- the water supply channel, the overflow pipe 24 and the cleaning water channel 5 branched from the ball tap 30 are used. Wash water is supplied to the rim water passage 4 and a water seal is formed in the toilet bowl 2. As described above, toilet flushing is completed, and the flush toilet returns to the toilet flush standby state.
- the washing tank apparatus when water is drained from the tank body 20 in a cold region or the like, the washing water in the tank body 20 is almost discharged, the float member 353 is in the lowest position, and the opening 351D is closed. Is done. For this reason, when the tank body 20 drains water, it is possible to prevent odor backflow or the like from the toilet drainage channel 3.
- Example 1 the on-off valve has the second valve element, but the on-off valve may not have the second valve element.
- the float member and the on-off valve are formed separately, but the float member and the on-off valve may be formed integrally.
- Example 1 although the convex part was provided in the upper end part of the float member and the recessed part was provided in the lower end part of the on-off valve, these convex parts and a recessed part do not need to be provided.
- the float valve body that closes the lower opening of the guide member is provided.
- the cleaning water flows from the inside of the guide member into the intake chamber outside the guide member. It may be configured so that the washing water does not easily flow into the guide member from the intake chamber outside the guide member.
- the valve body is made of iron and the adsorption member is formed of a permanent magnet. However, the valve body may be formed of a permanent magnet and the adsorption member may be made of iron.
- the valve body is a sphere, but the valve body may be disk-shaped, conical, or flapper-shaped.
- the length of the support member can be adjusted in two stages. However, the support member may be adjustable in multiple stages or continuously.
- the float member is formed by injecting a foam material into the inside of the cylindrical member (cylindrical portion), but the inside of the cylindrical member (cylindrical portion) is formed in an airtight chamber filled with air. However, it may have buoyancy.
- the air passage is formed in the float member, but the air passage may not be formed. In this case, air may be circulated between the valve chamber and the intake chamber using a gap between the float member and the opening.
- the opening portion of the upper surface portion that forms the intake chamber is closed by the flange portion or the seal member of the float member. However, the opening portion may be not closed.
- the intake chamber is formed separately from the tank body, but the intake chamber may be formed integrally with the tank body.
- the side surface portion of the intake chamber is formed in a cylindrical shape, but the side surface portion of the intake chamber may not be cylindrical.
- the present invention can be used for a flush toilet having a washing tank device.
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Abstract
Description
このタンク本体内へ洗浄水を供給する給水装置と、
前記便器排水路内の空気を吸引する吸気装置とを備えた洗浄タンク装置であって、
前記吸気装置は、
前記タンク本体内を区画して形成し、上下方向に延びて下端部が前記タンク本体内で開口した吸気室と、
便器洗浄の待機状態における水位よりも上方に設けた吸気口と、
この吸気口を介して前記吸気室と前記便器排水路とを連通しており、便器洗浄の待機状態における水位では前記吸気口を閉鎖して前記便器排水路側から前記吸気室内への空気の流入を防止し、前記吸気室より外側の前記タンク本体内の水位が設定した水位以下に下降すると前記吸気口を開放して前記便器排水路側から前記吸気室内への空気の流入を可能にする開閉弁とを備えていることを特徴とする。
前記吸気室内に配置し、設定した浮力を有するフロート部材と、
このフロート部材が設定した上昇位置まで上昇すると前記吸気口を閉鎖して前記便器排水路側から前記吸気室内への空気の流入を防止し、前記吸気室より外側の前記タンク本体内の水位が設定した水位以下に下降することによって前記フロート部材が前記上昇位置より下降すると前記吸気口を開放して前記便器排水路側から前記吸気室内への空気の流入を可能にする前記開閉弁とを備え得る。
前記開閉弁は、前記吸気口を挿通した状態で鉛直方向に往復移動する軸部と、この軸部の下端に連結され、前記吸気口の周縁部に当接する第1弁体とを有し、
前記フロート部材は、前記開閉弁とは別体に形成されており、上昇すると上端部を前記開閉弁の下端部に当接して前記開閉弁を押し上げ得る。
前記開閉弁は下端部の中央部を上方に凹設して前記凸部が当接する凹部を有し得る。
前記開閉弁は、前記軸部をこの案内路よりも長く形成し、この軸部がこの案内路に案内されて鉛直方向に往復移動し、前記軸部の上端に連結され、前記フロート部材が設定した下降位置より下降すると前記案内路の上端開口の周縁部に当接して前記便器排水路側から前記吸気室内への空気の流入を防止する第2弁体を有し得る。
前記下部開口に設けられ、前記吸気室内の水位が前記ガイド部材の下端下方から上昇する際、浮上して前記下部開口を閉鎖するフロート弁体とを備え得る。
前記吸気口の周縁部から上方に延びて形成され、前記便器排水路に前記吸気路を介して連通する弁室と、
この弁室内に収納された前記開閉弁と、
前記給水装置から直接的に洗浄水が供給される前記吸気室より外側の前記タンク本体内に配置され、便器洗浄の待機状態における水位よりも低い設定水位以下で下降するフロート部材と、
このフロート部材の昇降に連動して前記弁室に沿って昇降し、前記開閉弁との間隔が設定範囲内に近づくと引き付け合って前記吸気口を開放する吸着部材を保持した保持部とを具備し得る。
前記タンク本体内を区画した第1側面部と、この第1側面部の上端に連結され、開口部が貫設された第1上面部とにより形成され、連通口が設けられた前記吸気室と、
この吸気室内であって前記開口部の下方に位置し、側面下部又は底部に第1小孔が貫設され、上端が開口した筒状のガイド部と、
前記吸気室の開口部を挿通し、前記ガイド部の上端の開口から前記ガイド部内に挿入され、前記吸気室内における洗浄水の最高水位よりも低い設定水位以下で下降するフロート部材と、
前記開口部の周縁に沿って立ち上がった第2側面部と、この第2側面部に連結され、前記吸気口及び第2小孔が貫設された第2上面部とにより形成された弁室とを具備し、
前記吸気口及び前記第2小孔は前記吸気路を介して前記便器排水路に連通され、前記吸気口は、前記フロート部材が上昇した際、このフロート部材が前記開閉弁として作用して閉鎖し得る。
前記便器排水路に前記吸気路を介して前記吸気室を連通し、前記便鉢の上端開口の内周縁に設けられたリム通水路に前記タンク本体の排水口を連通していることを特徴とする。
実施例1の水洗式便器は、図1に示すように、便器本体1と便器本体1の後部上面に載置した洗浄タンク装置10とを具備している。便器本体1は便鉢2及び便鉢2の下流側に連通する便器排水路3を備えている。また、便鉢2の上部開口の内周縁にはリム通水路4が設けられている。
便器洗浄の待機状態では、図4に示すように、タンク本体20内は最高水位LA1まで洗浄水が貯留されている。また、吸気室41内の水位もタンク本体20内の最高水位LA1と同じ高さの最高水位LB1まで上昇している。フロート部材43は上昇位置に上昇している。このため、フロート部材43の凸部43Cが開閉弁44の凹部44Dに当接して、開閉弁44を押し上げている。よって、第1弁体44Bの上面が吸気口47Aの周縁に設けられた凸部47Dに当接し、第1弁体44Bが吸気口47Aを閉鎖している。
用便者等により洗浄ハンドルが操作され、フロート弁21が球鎖23を介して引き上げられと、排水口22が開放し、タンク本体20内に貯留した洗浄水が排水口22からリム通水路4に流出して、便器洗浄が開始される。この際、図5に示すように、貯水室25内の水位が低下し始める。一方、吸気室41は吸気口47Aが第1弁体44Bによって閉鎖されているため、外気が吸気室41内に流入せず、吸気室41内の水位は変化しない。つまり、この時点では、吸気装置40は便器排水路3内の空気を吸引しない。
タンク本体20内に貯留した洗浄水が流出し、図6に示すように、貯水室25内の水位が設定した水位LA2以下に下降すると、吸気室41内に発生する負圧がフロート部材43の浮力、及びフロート弁体46の浮力よりも大きくなる。このため、フロート部材43は上昇位置より下降し、フロート弁体46も下降する。フロート部材43の下降に伴って開閉弁44が下降するため、吸気口47Aが開放する。
さらに、タンク本体20内に貯留した洗浄水が排水口22からリム通水路4に流出し、図7に示すように、吸気室41内(ガイド部材45内も含む)の水位が設定水位LB2に低下すると、フロート部材43は下降位置に下降する。すると、開閉弁44が下降し、案内路47Bの上端開口47Cの周縁部に第2弁体44Cの下面が当接するため、上端開口47Cは第2弁体44Cによって閉鎖する。これによって、連通路42側から吸気室41内への空気の流入が防止される。つまり、吸気装置40による便器排水路3内の空気の吸引が終了する。
さらに、タンク本体20内に貯留した洗浄水が排水口22からリム通水路4に流出すると、徐々にその流量は減少し、サイホン作用が終了する。また、貯水室25内の水位がケース41Aの下端開口41Bより低下すると、吸気室41内の洗浄水も下端開口41Bから流出し、タンク本体20の排水口22からリム通水路4に流出する。タンク本体20内の水位が設定水位以下になるとフロート弁21が排水口22を閉鎖し、便器洗浄が終了する。
フロート弁21が排水口22を閉鎖すると、タンク本体20内に洗浄水が貯留し始める。すると、吸気室41内は空気を圧縮しながら洗浄水がケース41Aの下端開口41Bから流入し、ガイド部材45内にも下部開口45Bから洗浄水が流入する。このため、図8に示すように、吸気室41内(ガイド部材45内も含む)の水位は、貯水室25内の水位の上昇よりも遅れて上昇し始める。
実施例2の水洗式便器は、図11~図17に示すように、吸気装置140の構成が実施例1と相違する。他の構成は、実施例1と同様であり、同一の構成については同一の符号を付し詳細な説明を省略する。
便器洗浄の待機状態では、図11及び図12に示すように、タンク本体20内には所定量の洗浄水が貯水されている。つまり、貯水室25内には最高水位LA1まで洗浄水が貯水され、吸気室141内には最高水位LB1まで洗浄水が貯水されている。また、吸気装置140の吸気口142は弁体144により閉鎖されている。フロート部材145は、吸着部材147が鍔部141Eに係止した状態まで上昇しているため、上昇することができず、貯水室25内の洗浄水中に水没している。
用便者等により洗浄ハンドルが操作され、便器洗浄が開始されると、フロート弁21が玉鎖23を介して引き上げられ、排水口22が開放される。すると、貯水室25内の洗浄水が排水口22からリム通水路4に流出する。この際、貯水室25内の洗浄水の水位は急激に低下する。一方、吸気室141内の洗浄水は、弁体144によって吸気口142が閉鎖されているため、低下せずに最高水位LB1のままである。
さらに、貯水室25内の洗浄水が排水口22からリム通水路4に流出し続け、貯水室25内の洗浄水の水位が低下すると、図14に示すように、フロート部材145、保持部146及び吸着部材147がさらに下降する。これにより、吸着部材147と弁体144とが設定範囲内に近づく。すると、吸着部材147と弁体144とが引き付け合い、弁体144が移動して吸気口142が開放される。吸気口142が開放される時点では、吸気室141内と貯水室25内とは大きな水位差が生じている。この水位差により吸気口142が開放されると、図15及び図16に示すように、吸気室141内の洗浄水の水位は急激に低下し、貯水室25内の洗浄水の水位と同じ高さになる。この過程において、吸気装置140は吸気路6を介して便器排水路3内の空気を勢い良く吸引する。このように、この洗浄タンク装置110では、吸気装置140を大型化しなくても、便器排水路3内の空気を勢い良く吸引することができる。
吸気室141内及び貯水室25内の洗浄水の水位が同じ高さになった後も、吸気室141内及び貯水室25内の洗浄水が排水口22からリム通水路4に流出し続ける。吸気室141及び貯水室25内の洗浄水の水位が連通口141Cの上端より下方に低下してしまう直前にフロート弁21が排水口22を閉鎖する。これにより、吸気装置140は便器排水路3内の空気の吸引を終了する。また、便器排水路3内への洗浄水の供給が減少するため便器排水路内のサイホン作用は終了する。このように、この吸気装置140では、所定量の洗浄水がタンク本体20の排水口22からリム通水路4に流出し、排水口22がフロート弁21により閉鎖されるまで、便器排水路3内の空気を吸引し続ける。このため、サイホン作用が発生している間、吸気装置140は便器排水路3内の空気を吸引し続け、便器排水路内の空気を少なくしている。これにより、便器排水路3内の洗浄水の流れが空気の残留により邪魔され難く、便器排水路3内の汚物等の搬送を良好に行なうことができる。
フロート弁21が排水口22を閉鎖した後も、ボールタップ30の吐水管31から貯水室25内に直接的に洗浄水が吐水される。吸気装置140の吸気口142は開放されているため、連通口141Cを介して吸気室141内にも洗浄水は流入する。このため、貯水室25内及び吸気室141内の洗浄水の水位は同じ高さで上昇する。貯水室25内の洗浄水の水位の上昇にしたがって、フロート部材145は上昇する。フロート部材145が上昇する際、吸着部材147と弁体144とは引き付け合っている間は、吸気口142は開放されている。フロート部材145が上昇し、弁体144が返し部143Bより上方に上昇することができなくなると、吸着部材147と弁体144とは引き付け合うことができなくなり、弁体144が吸気口142に落下する。貯水室25内の水位が上昇している間は、吸気室141内の洗浄水の水位が貯水室25内の水位と等しくなるよう上昇しようとするため、貯水室25内の上方に溜まっている空気の圧力によって弁体144を吸気口142から押し上げたり、ずらしたりする。このようにして、吸気室141内の空気は吸気路6側に流出し、吸気室内141内の洗浄水の水位は最高水位LB1まで上昇することができる。貯水室25内が最高水位LA1となり、吸気室141内が最高水位LB1となると、ボールタップ30の開閉弁32が閉弁される。また、吸着部材147は、保持部146の底板部146Aによって最上昇位置に上昇する。この状態では、吸着部材147と弁体144とは引き付け合うことができず、弁体144によって吸気口142は閉鎖される。また、フロート弁21が排水口22を閉鎖してからボールタップ30の開閉弁32が閉弁されるまでの間、ボールタップ30から分岐された図示しない給水路、オーバーフロー管24及び洗浄水路5を介してリム通水路4に洗浄水が供給され、便鉢2内に水封が形成される。このようにして、図11及び図12に示すように、水洗式便器は便器洗浄の待機状態に復帰する。
実施例3の水洗式便器は、図18に示すように、吸気装置240の支持部材245が長さ調整可能に構成されている。他の構成は、実施例2と同様であり、同一の構成については同一の符号を付し詳細な説明を省略する。
実施例4の水洗式便器は、図19~図23に示すように、吸気装置340の構成が実施例1等と相違する。他の構成は、実施例1等と同様であり、同一の構成については同一の符号を付し詳細な説明を省略する。
便器洗浄の待機状態では、図19及び図20に示すように、タンク本体20内には所定量の洗浄水が貯水されている。つまり、貯水室25内には最高水位LA1まで洗浄水が貯水され、吸気室341内には最高水位LB1まで洗浄水が貯水されている。また、フロート部材343は最上昇位置に上昇しており、吸気装置340の吸気口344Cはフロート部材343により閉鎖されている。
用便者等により洗浄ハンドルが操作され、便器洗浄が開始されると、フロート弁21が玉鎖23を介して引き上げられ、排水口22が開放される。すると、貯水室25内の洗浄水が排水口22からリム通水路4に流出する。この際、貯水室25内の洗浄水の水位は急激に低下する。一方、吸気室341は、吸気口344Cがフロート部材343により閉鎖されているため、第2小孔344Dのみを介して空気が流入する。このため、第2小孔344Dから流入する空気量に応じて、吸気室341内の洗浄水の水位は徐々にゆっくりと低下し始める。吸気室341内の水位がフロート部材343が低下し始める設定水位LB2に低下するまでは、吸気口344Cはフロート部材343により閉鎖されたままである。
その後、吸気室341内の水位が設定水位LB2以下に低下すると、図21に示すように、フロート部材343が下降し始める。フロート部材343の下降に伴って吸気口344Cが開放される。吸気口344Cが開放された時点では、吸気室341内と貯水室25内とは大きな水位差が生じている。この水位差により吸気口344Cが開放されると吸気室341内の洗浄水の水位は急激に低下し、図22に示すように、貯水室25内の洗浄水の水位と同じ高さになる。この過程において、吸気装置340は吸気路6を介して便器排水路3内の空気を勢い良く吸引する。このように、この洗浄タンク装置310では、吸気装置340を大型化しなくても、便器排水路3内の空気を勢い良く吸引することができる。
吸気室341内及び貯水室25内の洗浄水の水位が同じ高さになった後も、吸気室341内及び貯水室25内の洗浄水が排水口22からリム通水路4に流出し続ける。吸気室341及び貯水室25内の洗浄水の水位が連通口341Cの上端より下方に低下してしまう直前にフロート弁21が排水口22を閉鎖する。これにより、吸気装置340は便器排水路3内の空気の吸引を終了する。また、便器排水路3内への洗浄水の供給が減少するため便器排水路3内のサイホン作用は終了する。このように、この吸気装置340では、所定量の洗浄水がタンク本体20の排水口22からリム通水路4に流出し、排水口22がフロート弁21により閉鎖されるまで、便器排水路3内の空気を吸引し続ける。このため、サイホン作用が発生している間、吸気装置340は便器排水路3内の空気を吸引し続け、便器排水路3内の空気を少なくしている。これにより、便器排水路3内の洗浄水の流れが空気の残留により邪魔され難く、便器排水路3内の汚物の搬送を良好に行なうことができる。
フロート弁21が排水口22を閉鎖した後も、ボールタップ30の吐水管31から貯水室25内に直接的に洗浄水が吐水される。吸気装置340の吸気口344Cは開放されているため、連通口341Cを介して吸気室341内にも洗浄水は流入する。このため、貯水室25内及び吸気室341内の洗浄水の水位は同じ高さで上昇する。ガイド部342内には、第1小孔342Aからも洗浄水が流入するが、ガイド部342より外側の吸気室341からガイド部342の上端342Tを乗り越えて洗浄水は流入する。ガイド部342内の洗浄水の水位の上昇にしたがって、フロート部材343は上昇する。貯水室25内が最高水位LA1となり、吸気室341内が最高水位LB1となると、ボールタップ30の開閉弁32が閉弁される。それと同時に、フロート部材343が最上昇位置となり、吸気口344Cが閉鎖される。また、フロート弁21が排水口22を閉鎖してからボールタップ30の開閉弁32が閉弁されるまでの間、ボールタップ30から分岐された図示しない給水路、オーバーフロー管24及び洗浄水路5を介してリム通水路4に洗浄水が供給され、便鉢2内に水封が形成される。このように、便器洗浄が終了するとともに、図19及び図20に示すように、水洗式便器は便器洗浄の待機状態に復帰する。
実施例5の水洗式便器は、図24及び図25に示すように、吸気装置350の構成が実施例4と相違する。他の構成は、実施例4と同じであり、同一の構成については同一の符号を付し詳細な説明を省略する。
この水洗式便器において、便器洗浄を開始する前は、タンク本体20内には所定量の洗浄水が貯水されている。このため、フロート部材353は最上昇位置に上昇しており、吸気装置350の吸気口354Cはフロート部材353のシール部材353Sにより閉鎖されている。
用便者等により洗浄ハンドルが操作され、便器洗浄が開始されると、フロート弁21が玉鎖23を介して引き上げられ、排水口22が開放される。すると、貯水室25内の洗浄水が排水口22からリム通水路4に流出する。この際、貯水室25内の洗浄水の水位は急激に低下する。一方、吸気室351は、吸気口354Cがフロート部材353のシール部材353Sにより閉鎖されているため、第2小孔354Dのみを介して空気が流入する。このため、第2小孔354Dから流入する空気量に応じて、吸気室351内の洗浄水の水位は徐々にゆっくりと低下し始める。フロート部材343が低下し始めるまでは、吸気口354Cはフロート部材353のシール部材353Sにより閉鎖されたままである。
その後、ガイド部352内の洗浄水が第1小孔352Cから流出し、ガイド部352内の洗浄水の水位が低下すると、フロート部材353が下降し始める。フロート部材353の下降に伴って吸気口354Cが開放される。吸気口354Cが開放された時点では、吸気室351内と貯水室25内とは大きな水位差が生じている。この水位差により吸気口354Cが開放されると吸気室351内の洗浄水の水位は急激に低下し、貯水室25内の洗浄水の水位と同じ高さになる。この過程において、吸気装置350は吸気路6を介して便器排水路3内の空気を勢い良く吸引する。このように、この洗浄タンク装置では、吸気装置350を大型化しなくても、便器排水路3内の空気を勢い良く吸引することができる。
吸気室351及び貯水室25内の洗浄水の水位が連通口351Cより下方に低下してしまう直前にフロート弁21が排水口22を閉鎖する。これにより、吸気装置350は便器排水路3内の空気の吸引を終了する。また、便器排水路3内への洗浄水の供給が減少するため便器排水路3内のサイホン作用は終了する。このように、この吸気装置350では、所定量の洗浄水がタンク本体20の排水口22からリム通水路4に流出し、排水口22がフロート弁21により閉鎖されるまで、便器排水路3内の空気を吸引し続ける。このため、サイホン作用が発生している間、吸気装置350は便器排水路3内の空気を吸引し続け、便器排水路3内の空気を少なくしている。これにより、便器排水路3内の洗浄水の流れが空気の残留により邪魔され難く、便器排水路3内の汚物の搬送を良好に行なうことができる。
(1)実施例1では、開閉弁に第2弁体を有していたが、開閉弁は第2弁体を有していなくてもよい。
(2)実施例1では、フロート部材と開閉弁とを別体に形成しているが、フロート部材と開閉弁とを一体に形成してもよい。
(3)実施例1では、フロート部材の上端部に凸部を設け、開閉弁の下端部に凹部を設けているが、これら凸部及び凹部を設けなくてもよい。
(4)実施例1では、ガイド部材の下部開口を閉鎖するフロート弁体を備えていたが、フロート弁体の代わりに、下部開口をガイド部材内からガイド部材の外側の吸気室内へ洗浄水が流出し易く、逆にガイド部材の外側の吸気室からガイド部材内に洗浄水が流入し難くするように構成するとよい。
(5)実施例2及び3では、弁体が鉄製であり、吸着部材が永久磁石により形成されていたが、弁体を永久磁石により形成し、吸着部材を鉄製にしてもよい。
(6)実施例2及び3では、弁体が球体であったが、弁体は円盤状、円錐状又はフラッパー形状であってもよい。
(7)実施例3では、支持部材の長さが2段階に調整可能であったが、支持部材は多段階さらには連続的に長さを調整可能にしてもよい。
(8)実施例4及び5では、フロート部材は、円筒部材(円筒部)の内部に発泡材料を注入して形成したが、円筒部材(円筒部)の内部を空気を封入した気密室に形成し、浮力を有するようにしてもよい。
(9)実施例4及び5では、フロート部材に通気路を形成したが、通気路を形成しなくてもよい。この場合、フロート部材と開口部との隙間を利用して弁室と吸気室との間で空気を流通させればよい。
(10)実施例4及び5では、フロート部材の鍔部又はシール部材により吸気室を形成する上面部の開口部を閉鎖したが、この開口部を閉鎖しない構成であってもよい。
(11)実施例1~5では、吸気室がタンク本体と別体に形成されていたが、吸気室はタンク本体と一体に形成されてもよい。
(12)実施例2~5では吸気室の側面部が円筒状に形成されていたが、吸気室の側面部は円筒状でなくてもよい。
2…便鉢
3…便器排水路
6…吸気路
10、110、310…洗浄タンク装置
20…タンク本体
30…ボールタップ(給水装置)
40、140、240、340、350…吸気装置
41、141、341、351…吸気室
43、145、343、353…フロート部材
43C…凸部
44、144、343、353…開閉弁(144…弁体)
44A…軸部
44B…第1弁体
44C…第2弁体
44D…凹部
45…ガイド部材
45A…上部開口
45B…下部開口
46…フロート弁体
47A、142、344C、354C…吸気口
47B…案内路
47C…上端開口
143、344、354…弁室
146…保持部
147…吸着部材
342、352…ガイド部
Claims (9)
- 便鉢及びこの便鉢の下流側に連通した便器排水路を有した便器本体を洗浄する洗浄水を貯留するタンク本体と、
このタンク本体内へ洗浄水を供給する給水装置と、
前記便器排水路内の空気を吸引する吸気装置とを備えた洗浄タンク装置であって、
前記吸気装置は、
前記タンク本体内を区画して形成し、上下方向に延びて下端部が前記タンク本体内で開口した吸気室と、
便器洗浄の待機状態における水位よりも上方に設けた吸気口と、
この吸気口を介して前記吸気室と前記便器排水路とを連通しており、便器洗浄の待機状態における水位では前記吸気口を閉鎖して前記便器排水路側から前記吸気室内への空気の流入を防止し、前記吸気室より外側の前記タンク本体内の水位が設定した水位以下に下降すると前記吸気口を開放して前記便器排水路側から前記吸気室内への空気の流入を可能にする開閉弁とを備えていることを特徴とする洗浄タンク装置。 - 前記吸気装置は、
前記吸気室内に配置し、設定した浮力を有するフロート部材と、
このフロート部材が設定した上昇位置まで上昇すると前記吸気口を閉鎖して前記便器排水路側から前記吸気室内への空気の流入を防止し、前記吸気室より外側の前記タンク本体内の水位が設定した水位以下に下降することによって前記フロート部材が前記上昇位置より下降すると前記吸気口を開放して前記便器排水路側から前記吸気室内への空気の流入を可能にする前記開閉弁とを備えていることを特徴とする請求項1記載の洗浄タンク装置。 - 前記吸気口は鉛直方向に開口しており、
前記開閉弁は、前記吸気口を挿通した状態で鉛直方向に往復移動する軸部と、この軸部の下端に連結され、前記吸気口の周縁部に当接する第1弁体とを有し、
前記フロート部材は、前記開閉弁とは別体に形成されており、上昇すると上端部を前記開閉弁の下端部に当接して前記開閉弁を押し上げることを特徴とする請求項2記載の洗浄タンク装置。 - 前記フロート部材は上端部の中央部を上方に凸設した凸部を有しており、
前記開閉弁は下端部の中央部を上方に凹設して前記凸部が当接する凹部を有していることを特徴とする請求項3記載の洗浄タンク装置。 - 前記吸気口は鉛直上方に延びる案内路を有しており、
前記開閉弁は、前記軸部をこの案内路よりも長く形成し、この軸部がこの案内路に案内されて鉛直方向に往復移動し、前記軸部の上端に連結され、前記フロート部材が設定した下降位置より下降すると前記案内路の上端開口の周縁部に当接して前記便器排水路側から前記吸気室内への空気の流入を防止する第2弁体を有していることを特徴とする請求項3又は4記載の洗浄タンク装置。 - 前記吸気室内に設けられ、前記フロート部材を鉛直方向に往復移動するように収納し、上端部に設けられた上部開口、及び下端部に設けられた下部開口を有するガイド部材と、
前記下部開口に設けられ、前記吸気室内の水位が前記ガイド部材の下端下方から上昇する際、浮上して前記下部開口を閉鎖するフロート弁体とを備えていることを特徴とする請求項2乃至4のいずれか1項記載の洗浄タンク装置。 - 前記吸気装置は、
前記吸気口の周縁部から上方に延びて形成され、前記便器排水路に前記吸気路を介して連通する弁室と、
この弁室内に収納された前記開閉弁と、
前記給水装置から直接的に洗浄水が供給される前記吸気室より外側の前記タンク本体内に配置され、便器洗浄の待機状態における水位よりも低い設定水位以下で下降するフロート部材と、
このフロート部材の昇降に連動して前記弁室に沿って昇降し、前記開閉弁との間隔が設定範囲内に近づくと引き付け合って前記吸気口を開放する吸着部材を保持した保持部とを具備していることを特徴とする請求項1記載の洗浄タンク装置。 - 前記吸気装置は、
前記タンク本体内を区画した第1側面部と、この第1側面部の上端に連結され、開口部が貫設された第1上面部とにより形成され、連通口が設けられた前記吸気室と、
この吸気室内であって前記開口部の下方に位置し、側面下部又は底部に第1小孔が貫設され、上端が開口した筒状のガイド部と、
前記吸気室の開口部を挿通し、前記ガイド部の上端の開口から前記ガイド部内に挿入され、前記吸気室内における洗浄水の最高水位よりも低い設定水位以下で下降するフロート部材と、
前記開口部の周縁に沿って立ち上がった第2側面部と、この第2側面部に連結され、前記吸気口及び第2小孔が貫設された第2上面部とにより形成された弁室とを具備し、
前記吸気口及び前記第2小孔は前記吸気路を介して前記便器排水路に連通され、前記吸気口は、前記フロート部材が上昇した際、このフロート部材が前記開閉弁として作用して閉鎖されることを特徴とする請求項1記載の洗浄タンク装置。 - 便鉢及び便鉢の下流側に連通する便器排水路を有した便器本体と、請求項1、7、8のいずれか1項記載の洗浄タンク装置とを備え、
前記便器排水路に前記吸気路を介して前記吸気室を連通し、前記便鉢の上端開口の内周縁に設けられたリム通水路に前記タンク本体の排水口を連通していることを特徴とする水洗式便器。
Priority Applications (4)
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EP10828305A EP2497869A1 (en) | 2009-11-06 | 2010-11-04 | Flush tank device and flush toilet bowl |
CN201080050193.1A CN102782225B (zh) | 2009-11-06 | 2010-11-04 | 冲洗水箱装置及水洗式便器 |
CA 2779877 CA2779877A1 (en) | 2009-11-06 | 2010-11-04 | Flush tank device and flush toilet |
US13/503,456 US9009877B2 (en) | 2009-11-06 | 2010-11-04 | Drain duct air suction device for flush toilet |
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JP2009255367A JP5442396B2 (ja) | 2009-11-06 | 2009-11-06 | 洗浄タンク装置及び水洗式便器 |
JP2009-255367 | 2009-11-06 | ||
JP2009-256666 | 2009-11-10 | ||
JP2009256666A JP2011102462A (ja) | 2009-11-10 | 2009-11-10 | 洗浄タンク装置及び水洗式便器 |
JP2010-217123 | 2010-09-28 | ||
JP2010217123A JP5595851B2 (ja) | 2010-09-28 | 2010-09-28 | 洗浄タンク装置及び水洗式便器 |
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US (1) | US9009877B2 (ja) |
EP (1) | EP2497869A1 (ja) |
CN (1) | CN102782225B (ja) |
CA (1) | CA2779877A1 (ja) |
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CN105735438A (zh) * | 2016-01-21 | 2016-07-06 | 刘光磊 | 注浆成型的气动虹吸马桶 |
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- 2010-11-04 US US13/503,456 patent/US9009877B2/en not_active Expired - Fee Related
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US20120210506A1 (en) | 2012-08-23 |
US9009877B2 (en) | 2015-04-21 |
CN102782225A (zh) | 2012-11-14 |
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