Flush toilet

JP2025036008APending Publication Date: 2025-03-14TOTO LTD
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Patent Information

Application Number
JP2024007828
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-08-31
Filing Date
2024-01-23
Publication Date
2025-03-14

AI Technical Summary

Benefits of technology

【0021】 本発明によれば、駆動部と制御部とを接続する配線部における導通状態の相異を利用して制御部が床下接続状態/床上接続状態を識別することができるため、例えば床下接続状態/床上接続状態の選択ないし変更に応じて配線部の導通状態を選択ないし変更することで、洗浄水の吐止水制御の設定を容易に切り替え可能である。

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Abstract

To provide a flush toilet that allows easy switching of settings for flush water discharge and stop control in response to selection or change of under-floor connection state / above-floor connection state at a toilet installation site, for example.SOLUTION: The flush toilet comprises: a toilet body provided with a bowl section for receiving waste, a drain trap section connected below the bowl section, and a drive section for driving the spouting and stopping of flush water into the bowl section, a control section for controlling the drive section of the toilet body to control the spouting and stopping of flush water; and a wiring section connecting the drive section and the control section. The wiring section is capable of adopting different electrical conduction states when the drain trap section is in an under-floor connection state and when it is in an above-floor connection state. The control section is capable of controlling the spouting and stopping of flush water in accordance with a connection state of the drain trap section by identifying the electrical conduction states of the wiring section.SELECTED DRAWING: Figure 1
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Description

[Technical field]

[0001] The present invention relates to a flush toilet equipped with a drain trap portion that can be selectively used between an under-floor connection state and an above-floor connection state. [Background technology]

[0002] 2. Description of the Related Art Flush toilets equipped with a drain trap portion that can be selectively used between an under-floor connection state (floor drainage) and an above-floor connection state (wall drainage) have conventionally been in widespread use.

[0003] It has also been found that it is effective in terms of toilet flushing efficiency to differ the manner of control over the discharge and stop of flush water when the drain trap section is in an underfloor connection state from when the drain trap section is in an above-floor connection state.

[0004] Furthermore, if it is known before the product is shipped whether the under-floor connection state or the above-floor connection state will be selected, it is common for the product manufacturer to set the flush water discharge and stop control to suit that selection.

[0005] However, whether the under-floor connection state or the above-floor connection state will be selected may not be determined before the product is shipped, and may be changed after the product is shipped. In anticipation of such cases, it is desirable to be able to easily switch the settings for flush water discharge and stop control.

[0006] Related patent documents include Patent Document 1 (JP Patent Publication No. 2010-077681). Patent Document 1 describes that an information storage means for storing information on whether an under-floor connection state or an above-floor connection state is selected is built into a drain socket interposed between the drain trap section and the external drain piping, and that a control section (controller) that controls the discharge and stopping of flush water switches the flush sequence based on information obtained from the information storage means. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] JP 2010-077681 A Summary of the Invention [Problem to be solved by the invention]

[0008] In the configuration described in Patent Document 1, information on whether the under-floor connection state or the above-floor connection state is selected must be electrically written / rewritten in an information storage means as necessary. This work is surprisingly troublesome.

[0009] Furthermore, since the information storage means is built into the drain socket interposed between the drain trap portion and the external drain pipe, a relatively long wire is required to reach the drain socket.

[0010] Furthermore, the cost of the information storage means itself is also a factor to be considered.

[0011] The present invention has been devised to solve the above problems. The object of the present invention is to provide a flush toilet that allows for easy switching of flush water discharge / stop control settings in response to, for example, the selection or change of the under-floor connection state / above-floor connection state at the toilet installation site. [Means for solving the problem]

[0012] The present invention is a flush toilet comprising a toilet body having a bowl portion for receiving waste, a drain trap portion connected below the bowl portion, and a drive portion for driving the discharge and stopping of flushing water into the bowl portion, a control portion for controlling the drive portion of the toilet body to control the discharge and stopping of flushing water, and a wiring portion connecting the drive portion and the control portion, wherein the wiring portion is capable of adopting different conductivity states when the drain trap portion is in an under-floor connection state and when it is in an above-floor connection state, and the control portion is capable of identifying the conductivity state in the wiring portion and thereby controlling the discharge and stopping of flushing water in accordance with the connection state of the drain trap portion.

[0013] According to the present invention, the control unit can distinguish between the under-floor connection state and the above-floor connection state by utilizing the difference in the conductivity state in the wiring unit that connects the drive unit and the control unit. Therefore, for example, by selecting or changing the conductivity state of the wiring unit in response to the selection or change of the under-floor connection state or the above-floor connection state, the settings for the flush water discharge and stop control can be easily switched.

[0014] The conductive state of the wiring portion can be selected or changed by, for example, selecting or changing the physical wiring state of the wiring portion, so that there is no need to write / rewrite electrical information, and workability is extremely high.

[0015] It is preferable that the wiring section is capable of selecting the presence or absence of a jumper wire depending on whether the drain trap section is in an under-floor connection state or an above-floor connection state, and that different conductivity states can be adopted depending on the presence or absence of the jumper wire.

[0016] In this case, the underfloor connection state / above-floor connection state can be identified by the simple task of attaching / removing a jumper wire, further improving workability.

[0017] In the present invention, it is preferable that the wiring portion has a trap structure in at least a part thereof.

[0018] This effectively prevents cleaning water or condensation water from seeping through the wiring and wetting the control unit or drive unit, even if the cleaning water or condensation water adheres to the wiring, thereby reducing the risk of electric leakage.

[0019] In the present invention, it is also preferable that a portion of the wiring section on the drive section side and a portion of the wiring section on the control section side are removably connectable on an upper lateral side of the toilet body.

[0020] This effectively reduces the length of the wiring, reduces the risk of wire breakage, and makes the wiring easier. Effect of the Invention

[0021] According to the present invention, the control unit can distinguish between the under-floor connection state and the above-floor connection state by utilizing the difference in the conductivity state in the wiring unit that connects the drive unit and the control unit. Therefore, for example, by selecting or changing the conductivity state of the wiring unit in response to the selection or change of the under-floor connection state or the above-floor connection state, the settings for the flush water discharge and stop control can be easily switched. [Brief description of the drawings]

[0022] [Figure 1] FIG. 1 is a schematic exploded cross-sectional view showing a flush toilet according to a first embodiment of the present invention. [Diagram 2] 1 is a schematic diagram showing a jumper wire of a wiring portion of a first embodiment of the present invention. FIG. [Diagram 3] 3 is a schematic diagram showing details of a wiring portion on a drive portion side in the first embodiment of the present invention. FIG. [Figure 4] 4 is a schematic diagram showing how a connector on a drive unit side and a connector on a control unit side of a wiring unit are coupled to each other in the first embodiment of the present invention. FIG. [Diagram 5] 4 is a schematic diagram showing a trap structure in a portion of a wiring portion on a driving portion side according to the first embodiment of the present invention. FIG. [Figure 6] FIG. 4 is a plan view showing a flush toilet according to a second embodiment of the present invention. [Figure 7] FIG. 7 is a side cross-sectional view taken along line VII-VIII in FIG. 6. [Figure 8] 13 is a time chart showing "rim water spouting," "tank water supply," "jet water spouting," and "tank water level" in a flush toilet according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] (Basic configuration) A first embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic exploded cross-sectional view showing a flush toilet 101 according to a first embodiment of the present invention. FIG. 2 is a schematic diagram showing a jumper wire 145 of a wiring section 140 according to a first embodiment of the present invention. FIG. 3 is a schematic diagram showing details of a part 144 on the drive section side of a wiring section 140 according to a first embodiment of the present invention. FIG. 4 is a schematic diagram showing how a connector 143 on the drive section side and a connector 142 on the control section side of a wiring section 140 according to a first embodiment of the present invention are coupled. FIG. 5 is a schematic diagram showing a trap structure in a part 144 on the drive section side of a wiring section 140 according to a first embodiment of the present invention.

[0024] As shown in FIG. 1, a flush toilet 101 according to a first embodiment of the present invention comprises a toilet body 102, and a toilet seat 103 with a warm water cleaning function that is removably placed on the toilet body 102.

[0025] The toilet body 102 is provided with a bowl portion 106 for receiving waste, a drain trap portion 108 connected below the bowl portion 106, and a drive portion 120 (conceptually shown by a square symbol in Figure 1) for driving the discharge and stopping of flushing water into the bowl portion 106.

[0026] On the other hand, the toilet seat 103 with warm water washing function is provided with a control unit 110 that controls the drive unit 120 of the toilet body 2 to control the discharge and stopping of flush water.

[0027] The drive unit 120 of the toilet seat body and the control unit 110 of the toilet seat with warm water washing function 103 are connected by a wiring unit 140.

[0028] The wiring section 140 has a connector 143 at the tip of the section 144 on the drive section side, and a connector 142 at the tip of the section 141 on the control section side, and these connectors 142, 143 can be removably connected on the upper lateral side of the toilet body 102.

[0029] The wiring section 140 is capable of adopting different conductivity states depending on whether the drain trap section 108 is in an underfloor connection state (floor drainage) (lower left diagram in Figure 1) or an above-floor connection state (wall drainage) (lower right diagram in Figure 1).

[0030] Specifically, as shown in Figures 1 and 2, the wiring section 140 is capable of selecting whether or not to include a jumper wire 145 depending on whether the drain trap section 108 is in an under-floor connection state or an above-floor connection state.

[0031] The control unit 110 (specifically, a conductivity detection means 110a which is part of the control unit 110 (although it may also be a conductivity detection means separate from the control unit 110 and connected to the control unit 110)) is able to identify whether the drain trap unit 108 is in an under-floor connection state or an above-floor connection state by identifying the difference in the conductivity state corresponding to the presence or absence of a jumper wire 145 in the wiring unit 140.The control unit 110 is then configured to perform control of the discharge and stopping of flushing water adapted to the connection state of the drain trap unit 108 based on the identification result.

[0032] 3 to 5, the driving unit side portion 144 of the wiring portion 140 is fixed to the support substrate 160 in the vicinity of the connector 143. As shown in FIG. 3, the support substrate 160 is a substrate that is generally inverted L-shaped in a side view, and a water intrusion prevention wall 161 is provided on the upper and side edges. The driving unit side portion 144 of the wiring portion 140 (specifically, for example, a plurality of harness wires) is arranged and fixed to a hook portion 162 provided on the support substrate 160. In addition, the upper end of a rib portion 163 provided on the support substrate 160 engages with the lower end of a first insulation lock portion 144a fixed to the wiring portion 144, thereby protecting the wiring portion 144 from a downward tensile load. In addition, a pair of vertical walls 164 extending upward from the rib portion 163 restricts the circumferential rotational movement of the first insulation lock portion 144a, thereby restricting the circumferential rotational movement of the wiring portion 144. The pair of vertical walls 164 also restrict the lateral movement of the wiring portion 144. In addition, a second insulation lock portion 144b for bundling a plurality of harness wires is provided near the lower side of the hook portion 162, and the hook portion 162 restricts the upward movement of the second insulation lock portion 144b, thereby protecting the wiring portion 144 from an upward tensile load. Note that the distance from the lower end of the hook portion 162 to the upper end of the second insulation lock 144b is set shorter than the length of the vertical wall 164, so that the first insulation lock portion 144a will not fall off from above the vertical wall 164 even if the wiring portion 144 moves up and down slightly due to the excess length of the wiring portion 144 itself. The entire support substrate 160 is adapted to be fixed to the warm water washing toilet seat 103. As shown in Fig. 5, the wiring portion 144 has a trap structure (a downwardly convex U-shaped locus).

[0033] (Action and effect) According to the flush toilet 101 of the first embodiment as described above, the control unit 110 can distinguish between the under-floor connection state and the above-floor connection state by utilizing the difference in the conductivity state of the wiring unit 140 that connects the drive unit 120 and the control unit 110; therefore, for example, by selecting or changing the conductivity state of the wiring unit 140 in response to the selection or change of the under-floor connection state or the above-floor connection state, it is possible to easily switch the settings for the flush water discharge and stop control.

[0034] The selection or change of the conduction state of the wiring unit 140 can be made, for example, by selecting or changing the physical wiring state of the wiring unit 140, so there is no need to write / rewrite electrical information, and workability is extremely high. In particular, the wiring unit 140 of this embodiment is designed to select the presence or absence of a jumper wire 145 depending on whether the drain trap unit 108 is in an underfloor connection state or an above-floor connection state, and it is possible to adopt different conduction states depending on the presence or absence of the jumper wire 145. Therefore, the underfloor connection state / above-floor connection state can be distinguished by the simple task of attaching / removing the jumper wire 145, further improving workability.

[0035] Furthermore, according to the flush toilet 101 of the first embodiment, part 144 of the wiring part 140 has a trap structure. Because of this, even if cleaning water or condensation water adheres to the wiring part 140, this water can be effectively prevented from traveling up the wiring part 140 and wetting the control part 110 or drive part 120, reducing the risk of electric leakage.

[0036] Furthermore, according to the flush toilet 101 of the first embodiment, the connector 143 of the drive unit side part 144 and the connector 142 of the control unit side part 141 can be removably coupled to the upper lateral side of the toilet body 102, which effectively reduces the overall length of the wiring part 140, reducing the risk of breakage and making it easier to handle.

[0037] (Specific examples of the drive unit 120 and specific examples of flush water discharge / stop control) Next, a second embodiment will be described with reference to Figs. 6 to 8 to disclose a specific example of the drive unit 120 and a specific example of control over the discharge and stop of flush water.

[0038] First, the basic structure of a flush toilet 1 according to a second embodiment of the present invention will be explained using Figures 6 and 7. Figure 6 is a plan view showing a flush toilet 1 according to the second embodiment of the present invention, and Figure 7 is a side cross-sectional view taken along line VII-VII in Figure 6.

[0039] As shown in Figures 6 and 7, the flush toilet 1 of this embodiment is a siphon jet type flush toilet. This flush toilet 1 is equipped with a ceramic toilet body 2, a resin toilet seat and toilet cover (see toilet seat 103 with warm water cleaning function in Figure 1) placed on the top surface of the toilet body 2, and a water storage tank 4 placed at the upper rear of the toilet body 2 and covered by a resin cover (not shown).

[0040] The toilet body 2 is formed with a bowl portion 6 for receiving waste, a drain trap portion 8 provided at the bottom of the bowl portion 6 for discharging waste by siphon action, a rim water outlet 10 for rim water spouting, a rim water conduit 12 for guiding flushing water to the rim water outlet 10, a jet water outlet 14 for jet water spouting, and a jet water conduit 16 for guiding flushing water to the jet water outlet 14.

[0041] The bowl portion 6 comprises a bowl-shaped waste receiving surface 18, a rim portion 20 formed along the upper edge of the bowl portion 6, and a shelf portion 21 formed between the waste receiving surface 18 and the rim portion 20. The bowl portion 6 also comprises a pot portion 22 formed in the area below the waste receiving surface 18 and connected to the drain trap portion 8. A water sealing surface (reservoir surface) W is formed inside the pot portion 22.

[0042] The drain trap section 8 has an inlet 8a, an ascending pipe 8b extending upward from the inlet 8a, a descending pipe 8c extending downward from the ascending pipe 8b, and a top 8d located between the descending pipe 8c and the ascending pipe 8b and determining the sealing water level of the sealing surface W.

[0043] Here, the lower end of the descending pipe 8c of the drain trap portion 8 is connected to a drain pipe (not shown) via a drain socket (not shown).

[0044] When looking at the toilet body 2 from the front, the rim spout 10 is formed on the rear left side of the rim portion 20. The rim spout 10 spouts flushing water forward, and this flushing water swirls around the inner circumferential surface of the rim portion 20 and the shelf surface of the shelf portion 21 before flowing down to the waste receiving surface 18 and cleaning the waste receiving surface 18.

[0045] The rim water conduit 12 is formed in a tapered shape with the flow path cross section gradually becoming smaller towards the rim water outlet 10. A water supply hose 23 that is directly connected to a water supply is connected to the upstream side of the rim water conduit 12. Flush water is supplied to the rim water conduit 12 from the water supply, and the flush water is discharged from the rim water outlet 10 by the water supply pressure of the water supply.

[0046] The jet water outlet 14 is formed in the bottom of the bowl portion 6. The jet water outlet 14 is disposed opposite the inlet 8a of the drain trap portion 8, and is directed toward the inlet 8a of the drain trap portion 8. The jet water outlet 14 ejects flush water toward the inlet 8a of the drain trap portion 8, and this flush water flows into the drain trap portion 8, activating the siphon effect. The jet water outlet 14 is disposed so as to be located within the sealed water (stored water).

[0047] The jet water conduit 16 comprises an upstream flow path 16a extending forward from the water storage tank 4, a curved flow path 16b bending from this upstream flow path, and a downstream flow path 16c extending rearward from this curved flow path and connecting to the jet water outlet 14. Flush water is supplied to the jet water conduit 16 from the water storage tank 4, and the flush water is spouted from the jet water outlet 14 by the head pressure of the flush water.

[0048] The water storage tank 4 is a gravity-fed tank that stores flush water to be used for jet spouting and supplies it to the jet spout 14. Flush water is stored in the water storage tank 4 up to a predetermined stop water level (WL0), and flush water from this stop water level to a predetermined dead water level (DWL) is used for jet spouting. The water storage tank 4 is a small resin tank. The lower part of the water storage tank 4 (the valve body of the drain valve 38 described below) is positioned below the top surface of the rim portion 20 of the toilet body 2, and above the top 8d of the drain trap portion 8. This makes the flush toilet 1 a low-silhouette type toilet.

[0049] In addition, the flush water source (flush water supply device) that supplies flush water to the jet water outlet 14 is not limited to the gravity-fed water storage tank shown in this embodiment, and a pressure pump may be used to supply flush water from the storage tank to the jet water outlet 14.

[0050] Provided within the water storage tank 4 are a water supply device 24 which supplies flush water into the water storage tank 4, a drainage device 26 which supplies or stops the flush water stored in the water storage tank 4 to the jet water conduit 16, and a float switch 28 which detects when the flush water level in the water storage tank 4 has reached the stop water level (WL0). Note that the stop water level of the flush water in the water storage tank 4 may be detected by a capacitance sensor, ultrasonic liquid level sensor, or the like, other than the float switch.

[0051] In addition, outside the water tank 4, there is provided a controller 29 that controls the water supply device 24 and the drainage device 26 to be driven or stopped based on an operation signal from the user, and an operation unit (not shown) that transmits an operation signal in response to the user's operation.

[0052] The water supply device 24 comprises a constant flow valve (not shown) connected to a water supply, a rim-side solenoid valve 30 (corresponding to a specific example of the drive unit 120) that supplies or stops flush water to the rim spout 10, and a tank-side solenoid valve 34 (corresponding to a specific example of the drive unit 120) that supplies or stops flush water to a tank water supply port 32 arranged in the water storage tank 4. The rim-side solenoid valve 30 and the tank-side solenoid valve 34 are adapted to be driven by commands from a controller 29 based on an operation signal from the user or a water level detection signal from a float switch 28.

[0053] The drainage device 26 includes an overflow pipe 36 that drains overflowing water from the water storage tank 4 into the toilet body, a drain valve 38 fixed to the lower end of the overflow pipe 36, and a toilet flushing unit 40 (corresponding to a specific example of the drive unit 120) that opens and closes the drain valve 38 by moving the overflow pipe 36 up and down by an electric driving force. The upper and lower ends of the overflow pipe 36 are open. Therefore, if the time required to supply water to the water storage tank 4 to raise the water level to the stop water level (WL0) becomes long, the overflow pipe 36 will drain the overflowing water from the water storage tank 4 into the jet water conduit 16. A guide member 42 that guides the up and down movement of the drain valve 38 is attached to the periphery of the drain outlet 4a of the water storage tank 4. The toilet flushing unit 40 is driven by a command from the controller 29 based on an operation signal from the user.

[0054] The controller 29 is electrically connected to the float switch 28, the rim-side solenoid valve 30 (corresponding to a specific example of the drive unit 120), the tank-side solenoid valve 34 (corresponding to a specific example of the drive unit 120), and the toilet flushing unit 40 (corresponding to a specific example of the drive unit 120) via a wiring section (see wiring section 140 in FIG. 1), and is capable of sending and receiving various signals. The controller 29 receives a flush start signal for a large flush or small flush from the operation section, and drives or stops the rim-side solenoid valve 30, the tank-side solenoid valve 34, and the toilet flushing unit 40 based on a flush sequence stored in advance.

[0055] Here, the flush sequence is switched between when the drain trap section 8 is in an under-floor connection state (floor drainage) and when it is in an above-floor connection state (wall drainage). Switching the flush sequence (the manner of flush water discharge / stop control) in this way depending on the connection state of the drain trap section 8 is effective in terms of toilet flushing efficiency.

[0056] Specifically, in Figure 8 below, the sequence shown by the solid line corresponds to the underfloor connection state (floor drainage), and the sequence shown by the dashed line corresponds to the above-floor connection state (wall drainage).

[0057] "Rim spouting," "tank water supply," "jet spouting," and "tank water level" in a flush toilet 1 according to this embodiment will be explained using Figure 8. Figure 8 is a time chart showing "rim spouting," "tank water supply," "jet spouting," and "tank water level" in a flush toilet 1 according to an embodiment of the present invention.

[0058] Here, "rim spouting" refers to spouting flush water from the rim spout 10, "tank water supply" refers to supplying water to the water storage tank 4, "jet spouting" refers to spouting flush water from the jet spout 14, and "tank water level" refers to the level of flush water in the water storage tank 4.

[0059] As shown in Figure 8, during a large flush of the flush toilet 1, first after a standby state at time t0, when the user operates the operating unit, at time t1, the rim-side solenoid valve 30 (corresponding to a specific example of the drive unit 120) turns ON, commencing rim spouting, in which water is supplied to the rim water conduit 12 and flush water is spouted from the rim spout 10. This rim spouting continues until time t5 in the underfloor connection state (floor drainage) (solid line), and continues until an earlier time t5' in the above-floor connection state (wall drainage) (dashed line).

[0060] Next, at time t2 in the underfloor-connected state (floor drainage) (solid line), or at an earlier time t2' in the above-floor-connected state (wall drainage) (dashed line), the drain valve 38 (corresponding to a specific example of the drive unit 120) is opened and turned ON, and jet spouting begins, in which flush water in the water storage tank 4 passes through the jet conduit 16 and is spouted from the jet spouting port 14. This jet spouting ends at time t4 in the underfloor-connected state (floor drainage) (solid line), or at an earlier time t4' in the above-floor-connected state (wall drainage) (dashed line). While jet spouting is occurring between time t2 and time t4, or between time t2' and time t4', rim spouting is also occurring at the same time.

[0061] Here, as is clear from Figure 8, for convenience, rim water spouting from time t1 when rim water spouting begins to time t2 (or time t2') when jet water spouting begins is referred to as "front rim water spouting", rim water spouting from time t2 to time t4 (or from time t2' to time t4') when jet water spouting is performed is referred to as "middle rim water spouting", and rim water spouting from time t4 when jet water spouting ends to time t5 when rim water spouting ends (or from time t4' to time t5') is referred to as "back rim water spouting." Also, as mentioned above, "jet water spouting" is performed from time t2 to time t4 (or from time t2' to time t4').

[0062] Next, as shown in Figure 8, float switch 28 was ON because the flush water level in the water storage tank 4 was at the stop water level at time t2 (or time t2') when jet water spouting began, but then turns OFF at time t3 (or time t3') because the flush water level in the water storage tank 4 drops below the stop water level. This OFF state of float switch 28 continues until time t7 (or time t7').

[0063] Furthermore, at time t6 in the underfloor connection state (floor drainage) (solid line), or at an earlier time t5 in the abovefloor connection state (wall drainage) (dashed line), tank-side solenoid valve 34 opens and turns ON, starting tank water supply to the storage tank 4, and the tank water supply ends at time t8 in the underfloor connection state (floor drainage) (solid line), or at an earlier time t8' in the abovefloor connection state (wall drainage) (dashed line). Since this tank water supply started at time t6 or t5, the flush water level in the storage tank 4 rises, which causes float switch 28 to return to ON at time t7 (or time t7') when the flush water level in the storage tank 4 rises to the stop water level, entering a full water state.

[0064] The large flush has been explained using Figure 8, but the small flush also applies to the time chart in Figure 8. Note that, as will be described later, the large flush and small flush have different water discharge times and water discharge volumes.

[0065] (Action and effect) With the flush toilet 1 of the second embodiment as described above, the control unit (controller 29) can distinguish between the under-floor connection state and the above-floor connection state by utilizing the difference in the conductivity state of the wiring section that connects the drive section (rim-side solenoid valve 30, tank-side solenoid valve 34, toilet flushing unit 40) and the control unit (controller 29), and therefore it is possible to easily switch the settings for the flush water discharge and stop control by, for example, selecting or changing the conductivity state of the wiring section in response to selecting or changing the under-floor connection state or the above-floor connection state.

[0066] The present invention includes the following features (inventions). [Feature 1] a toilet body provided with a bowl portion for receiving waste, a drain trap portion connected below the bowl portion, and a drive portion for driving the discharge and stopping of flush water into the bowl portion; A control unit that controls the drive unit of the toilet body to control the discharge and stopping of flush water; A wiring section that connects the drive section and the control section; Equipped with The wiring section is capable of adopting different conduction states when the drain trap section is in an under-floor connection state and when the drain trap section is in an above-floor connection state, The control unit is capable of performing flush water discharge / stop control adapted to a connection state of the drain trap unit by identifying the conduction state of the wiring unit. A flush toilet characterized by: [Feature 2] The wiring section is capable of selecting the presence or absence of a jumper wire depending on whether the drain trap section is in an underfloor connection state or an above-floor connection state, and is capable of adopting different electrical continuity states depending on the presence or absence of the jumper wire. 2. The flush toilet according to feature 1. [Feature 3] The wiring portion has a trap structure in at least a part thereof. 3. The flush toilet according to feature 1 or 2. [Feature 4] The driving unit side portion of the wiring portion and the control unit side portion of the wiring portion are removably connectable to each other on the upper lateral side of the toilet body. A flush toilet as described in any one of Features 1 to 3. [Explanation of symbols]

[0067] 1 flush toilet 2 Toilet bowl body 4. Water tank 4a Drain 6 Bowl section 8 Drain Trap Part 8a entrance 8b Ascending Pipe 8c descending pipe 8d top 10 Rim Spout 12 Rim Waterway 14 Jet outlet 16 Jet Waterway 16a Upstream channel 16b Bent flow path 16c Downstream channel 18 Waste receiving surface 20 Rim section 21 Shelf 22 Pressure Point Section 23 Water supply hose 24 Water supply equipment 26 Drainage system 28 Float switch 29 Controller (an example of a control unit) 30 Rim side solenoid valve (an example of a drive unit) 32 Tank water inlet 34 Tank side solenoid valve (example of drive unit) 36 Overflow pipe 38 Drain valve 40 Toilet flushing unit (an example of a drive unit) 42 Guide member 101 Flush toilet 102 Toilet bowl body 103 Toilet seat with warm water cleaning function 106 Bowl section 108 Drain trap section 110 Control section 110a Continuity detection means 120 Drive unit 140 Wiring section 141 Control section of wiring section 142 Connector on the control side of the wiring section 143 Connector on the drive side of the wiring section 144 Wiring section drive side 144a First Insulok Part 144b Second Insulok Part 145 Jumper Wire 160 Support substrate 161 Water infiltration prevention wall 162 Hook part 163 Rib section 164 Vertical Wall

Claims

1. A toilet body including a bowl portion for receiving waste, a drain trap portion connected below the bowl portion, and a drive portion for driving the discharge and stopping of flush water into the bowl portion; A control unit that controls the drive unit of the toilet body to control the discharge and stopping of flush water; A wiring section that connects the drive section and the control section; Equipped with The wiring section is capable of adopting different conduction states when the drain trap section is in an under-floor connection state and when the drain trap section is in an above-floor connection state, The control unit is capable of performing flush water discharge / stop control adapted to a connection state of the drain trap unit by identifying the conduction state of the wiring unit. A flush toilet characterized by:

2. The wiring section is capable of selecting the presence or absence of a jumper wire depending on whether the drain trap section is in an underfloor connection state or an above-floor connection state, and is capable of adopting different electrical continuity states depending on the presence or absence of the jumper wire.

2. The flush toilet according to claim 1.

3. The wiring portion has a trap structure in at least a part thereof.

3. The flush toilet according to claim 1 or 2.

4. The driving unit side portion of the wiring portion and the control unit side portion of the wiring portion are removably connectable to each other on the upper lateral side of the toilet body.

4. The flush toilet according to claim 3.

Citation Information

Patent Citations

  • Western style toilet bowl

    JP2010077681A