JP2008291568A - Washing structure and washing method for flush toilet bowl - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washing structure of a flush toilet bowl, efficiently and surely discharging floating residual excretion remaining in a reservoir water of a trap after evacuation in the flush toilet bowl having a drain pipe at the back of the flush toilet bowl. <P>SOLUTION: Washing water S is stored up to the height of a free end 9 in the interior of a bowl 1 with the free end 9 of the trap 6 directed upward. When a toilet bowl washing switch is pressed after evacuation, a motor 12 is operated and simultaneously a water supply valve 20 is operated to supply washing water S to the bowl 1. The motor 12 is rotated forward so that the free end 9 of the trap 6 is turned substantially in the horizontal direction, thereby discharging excretion with the washing water S as the reservoir water from an outer discharge port 5 to the back of the toilet bowl. After that, the motor 12 is rotated in the reverse direction so that the free end 9 of the trap part 6 is turned upward, and the washing water S is injected to reach the upper limit position. After that, the free end 9 is again turned to the intermediate position between the upper position and the substantially horizontal position to thereby cause floating residual excretion T to flow out with the washing water S. After that, the free end 9 is again turned upward in the reverse direction so that the washing water S is accumulated. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a flush toilet having a trap part whose free end is reversible, and relates to a flush structure and a washing method of a flush toilet capable of efficiently discharging floating residual matter remaining in a pooled water after a stool. is there.

  Conventionally, for example, the content of Patent Document 1 is known as a flush toilet with a trap portion communicated with a drain pipe that is built in a flush toilet body and extends from a bowl.

  As shown in FIG. 4, the flush toilet 50 of Patent Document 1 includes a movable trap portion in which one end communicates with a discharge pipe portion 50 a extending from a bowl of a toilet body (not shown) as a fixed end 55 and the other end is a free end 51. 53. The movable trap portion 53 is accommodated in a case body 56 connected to the external drain pipe 52, and the external drain pipe 52 is guided under the floor. A free end 51 of the movable trap portion 53 is rotatable in the vertical direction as indicated by an arrow A by a rotation shaft 58 driven by a motor by a rotary arm 60 connected to the free end 51.

  Then, the motor-driven rotating shaft 58 and a water supply valve (not shown) for supplying water to the toilet bowl are controlled so that the free end 51 of the movable trap portion 53 in the upward position is reversed as indicated by an arrow B during normal reservoir water. And a self-cleaning mechanism that causes the drainage to flow out as overflow water from the free end 51 as shown by an arrow C.

  The self-cleaning mechanism can select and carry out self-cleaning by a manual switch and automatic self-cleaning automatically performed after stool in order to clean the outer portion of the movable trap portion 53.

In such a flush toilet 50, since the free end 51 is reversed and descends to the position of the external drain pipe 52, a sufficient drop H is obtained between the drain pipe portion 50a and the drain outlet 56a of the case body 56. Since the filth can be washed away sufficiently, the floating filth is hardly generated in the movable trap portion 53.
Japanese Patent Laid-Open No. 11-210055

  However, an external drain pipe may be provided on the floor surface behind the flush toilet. The draining operation in this case will be described with reference to FIG. As shown in FIG. 5A, one end of the movable trap portion 53 is fixed as a fixed end 55 to the discharge pipe portion 50a extending from the bowl 59 of the flush toilet 50, and the free end 51 of the movable trap portion 53 is above the toilet body. Wash water S is stored in the bowl 59. The drain pipe 52a is guided onto the floor surface 57.

  As shown in FIG. 5 (b), after the stool, the free end 51 of the movable trap part 53 is placed in a substantially horizontal state for draining. Then, as shown in FIG. 5 (c), the free end 51 of the movable trap portion 53 returns upward, and as shown in FIG. 5 (d), the inside of the movable trap portion 53 is in a pooled water state.

  Here, since the drain pipe 52a is provided on the floor surface 57, the drop H1 between the discharge pipe portion 50a of the toilet body and the free end 51 of the movable trap portion 53 in FIG. Since it is less than the head H, a sufficient amount of water at the time of drainage cannot be obtained, so that floating residue T may remain inside the movable trap portion 53.

  The present invention has been made in view of such circumstances, and is a flush toilet in which a drain pipe is provided behind the flush toilet, and efficiently and reliably discharges floating residual matter remaining in the trap water in the trap section after the stool. It is an object of the present invention to provide a washing structure and a washing method for a flush toilet.

  The invention described in claim 1 is a flush toilet flushing structure in which a trap portion is communicated with a drain pipe that is built in a flush toilet body and extends from a bowl, and the trap housed in a case body connected to an external drain pipe The part is a fixed end fixed to the drain pipe, and the other end is formed as a free end that is reversible between the upper side and the substantially horizontal side by a rotating arm that rotates about a rotation axis, and supplies water to the toilet bowl. After having a water supply valve and rotating the rotating shaft after stool to rotate the free end of the trap part approximately horizontally from above, the free end is inverted upward and the pooled water reaches the upper limit position, In order to flush out the floating residual matter, the free end is rotated again to flow the accumulated water, and then the free end of the trap portion is rotated upward to fill the accumulated water up to the upper limit position. No .

  The invention according to claim 2 is a flushing toilet cleaning method in which a trap portion is communicated with a drainage pipe built in a flush toilet body and extending from a bowl, wherein the trap is housed in a case body connected to an external drainage pipe. The part is a fixed end fixed to the drain pipe, and the other end is formed as a free end that is reversible between upper and substantially horizontal by a rotating arm that rotates about the rotating shaft, and the rotating shaft is electrically driven. An electric drive means for rotating is provided, and the electric drive means and a water supply valve for supplying water to the toilet bowl are controlled so that the free end of the trap portion is rotated substantially horizontally from above after the stool. After the reservoir water reaches the upper limit position, the free end is rotated again to flush out the suspended waste in the trap portion, and the pool water is poured again, and then the free end of the trap portion is rotated upward. Reservoir water is the upper limit It is characterized by being filled to location.

  According to the first aspect of the present invention, after the stool is rotated, the rotating shaft is rotated to rotate the free end of the trap portion approximately horizontally from above, and then the free end is reversed upward to allow the accumulated water to reach the upper limit position. After that, in order to drain the floating waste in the trap part, the free end is rotated again to flow the pooled water, and then the free end of the trap part is rotated upward to fill the pooled water to the upper limit position. Since the suspended waste that has not been drained by simply flushing the stool once after the stool, the retained water is flushed twice by rotating the free end again. it can.

  According to the invention described in claim 2, the same effect as that of the invention described in claim 1 can be obtained.

  Embodiments of the present invention will be described below with reference to FIGS.

<Configuration of flush toilet cleaning structure>
As shown in FIG. 1, in the flush toilet 30 of the present embodiment, a tubular trap portion 6 is communicated with an end of a drain pipe 3 extending from the bottom of the bowl 1 built in the flush toilet body 31.

  The trap portion 6 is accommodated in a case body 8 connected to the external drain pipe 4 disposed on the floor 18. One end of the trap portion 6 is fixed as a fixed end to the drain pipe 3 and the other end is a free end 9. A support member 9 a fixed to the free end 9 is symmetrically disposed outside the trap portion 6. It is connected to the tip of a pair of free arms 10a.

  Here, the electric drive means 13 for rotating the rotary shaft 15a is composed of a motor 12, a first gear 14, and a second gear 15a. The motor 12 is rotated by the activation of a toilet flushing switch (not shown) and the first gear 14 is rotated. The rotational force is transmitted to the pair of arms 10 a that drive the second gear 15 and are connected to the rotation shaft 15 a of the second gear 15.

  Thus, the drainage channel of the flush toilet 30 is formed by the drainage pipe 3, the trap part 6, the case part 8, and the external drainage pipe 4, and the free end 9 of the trap part 6 that rotates in the vertical direction via the rotating shaft 15a. The trap portion 6 is in a substantially horizontal state in a state in which is rotated downward. The flush toilet body 31 is provided with a water supply valve 20 for supplying water to the toilet body bowl 2.

The trap portion 6 is formed of a bellows-like hose 7, and the material of the hose 7 is made of a material such as resin or rubber that has excellent elasticity and can be expanded and contracted and bent.
The operation of the trap unit 6 will be described with reference to FIGS. 2 and 3, but “corresponding positions with respect to the respective states in FIG. 2” are shown in FIG. 3, so the description of the operation in FIG. Therefore, the description of FIG. 3 is omitted. The operation of the trap unit 6 is continuously carried out from FIG. 2A to FIG. 2F by an internal relay circuit (not shown) only by pressing the toilet flushing switch once.

  As shown in FIG. 2A, in a normal state, the free end 9 of the trap portion 6 faces upward, and the cleaning water S is accumulated up to the height of the free end 9 inside the bowl.

  As shown in FIG. 2 (b), when the toilet flushing switch is pushed after the stool, the motor 12 rotates forward, the trap portion 6 becomes substantially horizontal, and the free end 9 stops at the position of the external drain pipe 4 behind the toilet. Therefore, the filth is discharged to the external drainage pipe 4 together with the cleaning water S that is stored water. 2B to FIG. 2F, the cleaning water S is continuously supplied to the bowl 1 by the operation of the water supply valve 20.

  As shown in FIG. 2 (c), the motor 12 reverses and the free end 9 of the trap portion 6 rotates upward. In this state, the floating residue T is present near the free end 9.

  After a while, as shown in FIG. 2D, the cleaning water S reaches the upper limit position and returns to the accumulated water state as the initial position.

  As shown in FIG. 2 (e), the free end 9 is rotated again to an intermediate position between the upper position and the substantially horizontal position and the pooled water S is allowed to flow, so that the floating waste T present in the vicinity of the free end 9 is removed. Can be washed out.

  Thereafter, as shown in FIG. 2 (f), the free end 9 of the trap portion 6 is again turned up again, and the cleaning water S is accumulated to the upper limit position.

<Operation of flush toilet cleaning structure>
After operating the trap part 6 to discharge the floating waste T together with the wash water S to the rear of the toilet, the free end 9 of the trap part 6 is turned upside down again to inject the wash water S, and then the free end 9 is again inserted. Since the cleaning water S is rotated to flow, the floating residue T can be surely discharged by the two discharging operations of the trap portion 6.

  The embodiment of the present invention has been described with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes and the like within the scope of the present invention are included in the present invention. It is.

  For example, in the operation of operating the trap unit 6 to discharge the floating residual waste T together with the washing water S to the rear of the toilet bowl, the second discharging operation of the trap unit 6 is substantially the same as the first time with the free end 9 of the trap unit 6 being omitted. You may rotate to the horizontal position vicinity.

  In this case, as the free end 9 of the trap section 6 in the second trap section operation approaches the substantially horizontal position, the effect of discharging the floating waste T is improved, but the amount of water used increases, so the situation of the floating waste T is taken into consideration. Thus, the lower position of the second free end 9 is set.

  The trap unit can be operated manually in addition to the automatic setting linked to each flight.

It is a side view before the discharge operation start of the flush toilet 30 in embodiment of this invention. In the flush toilet according to the embodiment of the present invention, (a) is a state in which the free end 9 of the trap portion 6 faces upward and water is accumulated in the bowl 1 up to the height of the free end, (b) After the stool, the free end 9 rotates in a substantially horizontal direction and the filth is discharged to the rear of the toilet together with the stored water. (C) is the state where the free end 9 is turned upward after the filth is discharged and the stored water is injected. (D) is a state in which the accumulated water has reached the upper limit position, (e) is a state in which the free end 9 is rotated again to flow the accumulated water, and (f) is a state in which the free end 9 is again inverted upward. It is side surface sectional drawing which shows the state filled with water to the upper limit position. It is a figure which shows the operation state of the toilet bowl washing switch of the flush toilet bowl, the motor 12, and the water supply valve 20, and the corresponding position in each state in FIG. 2 in the embodiment of the present invention. It is a side view which shows the state in which the movable trap part 53 of the flush toilet 50 in a prior art example communicates the end to the discharge pipe part 50a, and the other end is the free end 51. In the flush toilet 50 in the conventional example, (a) is a state in which the free end 51 of the movable trap portion 53 is upward and the inside of the bowl 59 is stored with washing water S, (b) is a state in which the free end 51 is in a substantially horizontal state after stool, (C) is a state in which the free end 51 returns to the upper side, and (d) is a side cross-sectional view of the movable trap portion 53 in a pooled water state.

Explanation of symbols

1 Bowl 5 Outlet 6 Trap part 9 Free end 12 Motor 20 Water supply valve S Water T Floating residue

Claims (2)

A flush toilet flushing structure with a trap portion connected to a drain pipe that is built into the flush toilet body and extends from the bowl,
The trap part housed in the case body connected to the external drain pipe is fixed at one end fixed to the drain pipe, and the other end is inverted between the upper side and the substantially horizontal position by a rotating arm that rotates about the rotation axis. Formed at the free end,
It is equipped with a water supply valve for supplying water to the toilet bowl, and after rotating the rotating shaft to rotate the free end of the trap part approximately horizontally from above, the free end is inverted upward and the accumulated water is at the upper limit position. After arriving, the electric drive means for rotating the free end again to flow the pooled water in order to drain the floating residual matter in the trap unit, and then rotating the free end of the trap unit upward to fill the pooled water to the upper limit position. A washing structure for a flush toilet, comprising: A washing method for a flush toilet comprising a trap portion connected to a drain pipe that is built in the flush toilet body and extends from a bowl,
The trap part housed in the case body connected to the external drain pipe is fixed at one end fixed to the drain pipe, and the other end is inverted between the upper side and the substantially horizontal position by a rotating arm that rotates about the rotation axis. Formed at the free end,
An electric drive means for electrically rotating the rotating shaft is provided, and the electric drive means and a water supply valve for supplying water to the toilet bowl are controlled so that the free end of the trap portion is rotated substantially horizontally from above after stool. Then, after the free end is rotated upward and the accumulated water reaches the upper limit position, the free end is rotated again to flush out the floating waste in the trap part, and then the free end of the trap part is flowed. The method for cleaning a flush toilet is characterized in that the stored water is filled up to the upper limit position by rotating the sway upward.

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