JP2018138757A

JP2018138757A - Toilet bowl body

Info

Publication number: JP2018138757A
Application number: JP2018061562A
Authority: JP
Inventors: 寛明筒井; Hiroaki Tsutsui; 善博吉澤; Yoshihiro Yoshizawa; 友樹足立; Yuki Adachi
Original assignee: Lixil Corp
Current assignee: Lixil Corp
Priority date: 2018-03-28
Filing date: 2018-03-28
Publication date: 2018-09-06
Anticipated expiration: 2034-11-07
Also published as: JP6605065B2

Abstract

PROBLEM TO BE SOLVED: To provide a toilet bowl body in which washing water is hard to remain in a water communication part.SOLUTION: A toilet bowl body 12 comprises a toilet bowl part 14, a water communication part with a hollow structure 58 through which washing water supplied from a washing water supply device 60 passes, a water discharge port 32 for discharging washing water supplied in the water communication part 58 into the toilet bowl part 14, a water discharge passage 34 in communication with the inside of the toilet bowl body part 14 through a water discharge inlet formed below the toilet bowl body 14, and a communication passage 86 that has an inflow port 88 formed separately from the water discharge port 32 and a water output 90 opened toward the water discharge passage 34 in the water communication part 58 such that the water communication part 58 and the water discharge passage 34 are in communication with each other, and that circulates the washing water in the water communication part 58 into the water discharge passage 34.SELECTED DRAWING: Figure 6

Description

本発明は、水洗大便器に用いられる便器本体に関する。 The present invention relates to a toilet body used for a flush toilet.

大便器に用いられる便器本体は、陶器、樹脂等を用いて成形される。陶器製の便器本体の成形方法としては鋳込み成形が知られる（特許文献１参照）。鋳込み成形では、まず、陶石等の陶器原料を泥状にした泥しょうとよばれる原料を準備する。この後、石膏等の吸水性を有する素材を用いた複数の型枠により成形品の形状に応じた隙間空間を形成し、その隙間空間内に泥しょうを流し込む。泥しょうは型枠の表面に接する部位から吸水され、型枠の表面に沿って硬化（着肉）する。所定の時間の経過後、所望の肉厚の中間成形品が得られたら、中間成形品内に残る未硬化状態の泥しょう（以下、未硬化泥しょうという）を排出する。この後、脱型、乾燥等の後工程を経て成形品が完成する。 A toilet body used for a toilet bowl is molded using ceramics, resin, or the like. Casting molding is known as a method for forming a toilet bowl body made of ceramics (see Patent Document 1). In casting molding, first, a raw material called mud that is made from porcelain materials such as porcelain stones is prepared. Thereafter, a gap space corresponding to the shape of the molded product is formed by a plurality of molds using a water-absorbing material such as gypsum, and mud is poured into the gap space. The mud is absorbed from the part in contact with the surface of the formwork and hardens (fills) along the surface of the formwork. After an elapse of a predetermined time, when an intermediate molded product having a desired thickness is obtained, uncured mud remaining in the intermediate molded product (hereinafter referred to as uncured mud) is discharged. Thereafter, the molded product is completed through subsequent processes such as demolding and drying.

特許文献１では、このような鋳込み成形を用いて、便鉢部と、便鉢部内の汚物を排出するトラップ部と、便鉢部内に吐水孔を通して洗浄水を供給する通水部とを備える便器本体を成形している。 In Patent Document 1, using such cast molding, a toilet bowl including a toilet bowl, a trap part for discharging filth in the toilet bowl, and a water passing part for supplying cleaning water to the toilet bowl through a water discharge hole. The body is molded.

特開２０１３−１９４４１０号公報JP 2013-194410 A

ところで、特許文献１の便器本体は、長期間に亘り通水部内の同じ個所に洗浄水が滞留するおそれがある。本発明は、このような課題に鑑みてなされたものであって、洗浄水が通水部内に滞留し難い便器本体を提供することにある。 By the way, as for the toilet bowl body of patent document 1, there exists a possibility that a wash water may stay in the same location in a water flow part over a long period of time. This invention is made in view of such a subject, Comprising: It is providing the toilet bowl main body from which a wash water does not retain easily in a water flow part.

本発明の便器本体は、
便鉢部と、
洗浄水供給装置から供給される洗浄水が通る中空構造の通水部と、
前記通水部内に供給される洗浄水を前記便鉢部内に吐き出す吐水孔と、
前記便鉢部の下方に形成される排水入口を通して前記便鉢部内に連通した排水路と、
前記通水部に前記吐水口とは別に形成された流入口と前記排水路に向けて開放した流出口とを有して前記通水部と前記排水路とを連通し、前記通水部内の洗浄水を前記排水路に流通する連通路と、
を備えている。 The toilet body of the present invention is
Toilet bowl,
A hollow structure water passage portion through which the wash water supplied from the wash water supply device passes,
A water discharge hole for discharging the wash water supplied into the water passage part into the toilet bowl,
A drainage channel communicating with the inside of the toilet bowl through a drainage inlet formed below the toilet bowl,
The water flow part has an inlet formed separately from the water outlet and an outlet opened toward the drainage channel, and the water flow unit and the drainage channel are communicated with each other. A communication path through which wash water flows to the drainage channel;
It has.

この便器本体は、通水部内の洗浄水が連通路を通して排水路に流通するため、通水部内の洗浄水が排水路まで流れ落ち易くなる。このため、この便器本体は、通水部内に洗浄水が滞留し難くなり、通水部内を衛生的に保ち易くなる。 In this toilet body, since the wash water in the water passage part flows into the drainage channel through the communication path, the wash water in the water passage part easily flows down to the drainage channel. For this reason, in this toilet body, the wash water is less likely to stay in the water passage portion, and the inside of the water passage portion can be easily maintained hygienically.

本発明の便器本体の連通路の流入口は前記吐水口の下端よりも下方に開口しているとよい。また、本発明の便器本体の連通路の流入口は前記通水部の最下端部に開口しているとよい。また、本発明の便器本体の連通路の流出口は下方に向けて開口しているとよい。 The inflow port of the communication passage of the toilet body of the present invention may be opened below the lower end of the spout. Moreover, the inflow port of the communicating path of the toilet main body of this invention is good to open to the lowest end part of the said water flow part. In addition, the outlet of the communication passage of the toilet body of the present invention is preferably open downward.

第１参考形態に係る便器本体が用いられる水洗大便器の側面断面図である。It is side surface sectional drawing of the flush toilet bowl in which the toilet bowl main body which concerns on 1st reference form is used. 第１参考形態に係る水洗大便器の平面断面図である。It is a plane sectional view of the flush toilet concerning the 1st reference form. 第１参考形態に係る通水部を拡大した平面断面図である。It is the plane sectional view which expanded the water flow part concerning the 1st reference form. 第１参考形態に係る便器本体の側面図である。It is a side view of the toilet bowl body concerning the 1st reference form. 複数の型枠を用いて便器本体を成形する途中状態を示す図である。It is a figure which shows the state in the middle of shape | molding a toilet bowl main body using a some mold. 第１実施形態に係る便器本体が用いられる水洗大便器を示す側面断面図である。It is side surface sectional drawing which shows the flush toilet bowl in which the toilet bowl main body which concerns on 1st Embodiment is used. 第２参考形態に係る便器本体が用いられる水洗大便器を示す側面断面図である。It is side surface sectional drawing which shows the flush toilet bowl in which the toilet bowl main body which concerns on 2nd reference form is used.

以下、各参考形態及び実施形態では、同一の構成要素に同一の符号を付し、重複する説明を省略する。また、各図面では、説明の便宜のため、構成要素の一部を適宜省略する。 Hereinafter, in each reference form and embodiment, the same code | symbol is attached | subjected to the same component and the overlapping description is abbreviate | omitted. Moreover, in each drawing, a part of component is abbreviate | omitted suitably for convenience of explanation.

［第１の参考形態］
図１は第１参考形態に係る便器本体１２が用いられる水洗大便器１０の側面断面図である。以下の説明では、水洗大便器１０の便座（図示せず）に通常の姿勢で座る人の向きを基準として前後左右を表す。 [First Reference Form]
FIG. 1 is a side sectional view of a flush toilet 10 in which a toilet main body 12 according to a first reference embodiment is used. In the following description, front, rear, left and right are represented with reference to the direction of a person sitting in a normal posture on a toilet seat (not shown) of the flush toilet 10.

便器本体１２は、後述する便鉢部１４を含む各部位が陶石、ろう石、長石、珪石等の陶器原料を用いた鋳込み成形により一体成形される。便器本体１２は、前部に設けられる便鉢部１４と、便鉢部１４の下方に形成される排水入口１８を通して便鉢部１４に連通されるトラップ部１６と、便鉢部１４の上端縁部２０から外側に広がる上面部２２と、を備える。 As for the toilet bowl main body 12, each site | part including the toilet bowl part 14 mentioned later is integrally molded by casting molding using pottery raw materials, such as pottery stone, a fossil stone, feldspar, and silica. The toilet body 12 includes a toilet bowl 14 provided at the front, a trap 16 communicated with the toilet bowl 14 through a drainage inlet 18 formed below the toilet bowl 14, and an upper edge of the toilet bowl 14. An upper surface portion 22 extending outward from the portion 20.

便鉢部１４は、上側に開放する鉢面部２４と、鉢面部２４の下縁部から下方に窪んで形成される溜水部２６とを備える。鉢面部２４は、環状に連続して設けられ、その中央側に向けて下り勾配で傾斜する。便鉢部１４の上端内周部には、便鉢部１４の上端縁部２０と鉢面部２４の上縁部２８とをつなぐ立面部３０が設けられる。立面部３０は、鉢面部２４の上縁部２８から便鉢部１４の上端縁部２０に向けて略鉛直に立ち上がり、鉢面部２４の上縁部２８から便鉢部１４の上端縁部２０にかけての範囲でひさし状に内側に張り出すことなく設けられる。溜水部２６の底部の後方領域には、トラップ部１６の排水入口１８が形成される。便鉢部１４は、便鉢部１４の上端縁部２０から溜水部２６に至る範囲で環状に連続して設けられ、その一部には後述する吐水孔３２のみが開口として形成される。 The toilet bowl part 14 is provided with the bowl surface part 24 open | released upwards, and the water storage part 26 formed in a downward direction from the lower edge part of the bowl surface part 24. As shown in FIG. The bowl surface portion 24 is provided continuously in an annular shape, and is inclined with a downward slope toward the center thereof. An upper surface 30 that connects the upper edge 20 of the toilet bowl 14 and the upper edge 28 of the bowl 24 is provided on the inner periphery of the upper end of the toilet bowl 14. The upright portion 30 rises substantially vertically from the upper edge portion 28 of the bowl surface portion 24 toward the upper edge portion 20 of the toilet bowl portion 14, and the upper edge portion 20 of the toilet bowl portion 14 extends from the upper edge portion 28 of the bowl surface portion 24. It is provided without projecting inwardly in the shape of an eave within the range of. A drainage inlet 18 of the trap portion 16 is formed in the rear region of the bottom portion of the water storage portion 26. The toilet bowl 14 is continuously provided in an annular shape in a range from the upper end edge 20 of the toilet bowl 14 to the water reservoir 26, and only a water discharge hole 32 described later is formed as an opening in a part of the toilet bowl 14.

トラップ部１６は、便鉢部１４内の汚物を排出するための排水路３４の一部となる。トラップ部１６は排水入口１８から斜め後方に下降する第１下降通路３６と、第１下降通路３６の下流端部から斜め後方に上昇する上昇通路３８と、上昇通路３８の下流端部から下降する第２下降通路４０とを有する。第１下降通路３６は下流側に向かうにつれて下降し、上昇通路３８は下流側に向かうにつれて上昇する。トラップ部１６の下流端部には排出口４２が設けられる。トラップ部１６の第１下降通路３６及び上昇通路３８には洗浄水が封水４４として貯溜され、通水方向での空気の流れが封水４４により遮断される。 The trap part 16 becomes a part of the drainage channel 34 for discharging the filth in the toilet bowl part 14. The trap portion 16 descends from a first descending passage 36 that descends obliquely rearward from the drain inlet 18, an ascending passage 38 that rises obliquely rearward from the downstream end of the first descending passage 36, and descends from the downstream end of the ascending passage 38. A second descending passage 40. The first descending passage 36 descends toward the downstream side, and the ascending passage 38 rises toward the downstream side. A discharge port 42 is provided at the downstream end of the trap portion 16. Wash water is stored as sealed water 44 in the first descending passage 36 and the rising passage 38 of the trap portion 16, and the air flow in the direction of water flow is blocked by the sealed water 44.

上面部２２は、便鉢部１４の上端縁部２０から前方、両側方に広がるリム部４６と、便鉢部１４の上端縁部２０から後方に広がる台座部４８と、台座部４８の後方に設けられる収納部５０とを有する。台座部４８には取付孔（図示せず）が左右に間隔を空けて設けられる。台座部４８には便座が載せられ、便座は取付孔に挿通されるねじ等の固定具（図示せず）により固定される。 The upper surface portion 22 includes a rim portion 46 extending forward and both sides from the upper end edge portion 20 of the toilet bowl portion 14, a pedestal portion 48 extending rearward from the upper end edge portion 20 of the toilet bowl portion 14, and a rear portion of the pedestal portion 48. And a storage section 50 provided. Mounting holes (not shown) are provided in the pedestal portion 48 with a space left and right. A toilet seat is placed on the pedestal portion 48, and the toilet seat is fixed by a fixing tool (not shown) such as a screw inserted through the mounting hole.

図２は水洗大便器１０の平面断面図である。
収納部５０は、図１、図２に示すように、便器本体１２の上面部にて窪んで形成され、収納部５０上には洗浄水を貯溜する貯水タンク５２が取り付けられる。収納部５０内には、貯水タンク５２から供給される洗浄水を分配し、第１吐出部５４、第２吐出部５５から洗浄水を吐き出す分配器５６の一部が配置される。貯水タンク５２と分配器５６は、後述する通水部５８内に洗浄水を供給し、吐水孔３２に供給される第１内部主流Ｆ３、第２内部主流Ｆ４を形成する洗浄水供給装置６０を構成する。分配器５６の各吐出部５４、５５の先端部は、収納部５０に形成される供給孔６２に挿通され、後述する通水部５８内に配置される。 FIG. 2 is a plan sectional view of the flush toilet 10.
As shown in FIGS. 1 and 2, the storage unit 50 is formed to be recessed in the upper surface portion of the toilet body 12, and a water storage tank 52 for storing washing water is attached on the storage unit 50. A part of the distributor 56 that distributes the cleaning water supplied from the water storage tank 52 and discharges the cleaning water from the first discharge unit 54 and the second discharge unit 55 is disposed in the storage unit 50. The water storage tank 52 and the distributor 56 supply a wash water into a water passage 58 described later, and a wash water supply device 60 that forms a first internal main flow F3 and a second internal main flow F4 supplied to the water discharge hole 32. Configure. The distal end portions of the discharge portions 54 and 55 of the distributor 56 are inserted into supply holes 62 formed in the storage portion 50 and are disposed in a water flow portion 58 described later.

図３は通水部５８を拡大した平面断面図である。
便器本体１２は、図１、図３に示すように、便鉢部１４の後方に設けられる通水部５８を備える。通水部５８は吐水孔３２の上流側に設けられ、洗浄水供給装置６０の各吐出部５４から吐水孔３２に供給される洗浄水が内部を通る。通水部５８は、上壁部６４と、前壁部６６と、下壁部６８と、後壁部７０と、両横壁部７２とに囲まれる中空構造に形成される。上壁部６４は前述した便器本体１２の上面部２２に設けられる台座部４８である。両横壁部７２は、上壁部６４の左右両端部から略鉛直に垂下する。下壁部６８は、両横壁部７２の下端部をつなぐ。後壁部７０は、通水部５８内と収納部５０内を隔てる。前壁部６６は、便鉢部１４の上端内周部の一部であって、便鉢部１４内と通水部５８内を隔てる。前壁部６６は、通水部５８の吐水孔３２から離れる側である奥側に向けて凹むように湾
曲して形成される。便器本体１２は、両横壁部７２と前壁部６６とをつなぐ第１遮壁部７４を備える。 FIG. 3 is an enlarged plan sectional view of the water flow portion 58.
As shown in FIGS. 1 and 3, the toilet body 12 includes a water flow portion 58 provided behind the toilet bowl portion 14. The water flow portion 58 is provided on the upstream side of the water discharge hole 32, and the cleaning water supplied from each discharge portion 54 of the cleaning water supply device 60 to the water discharge hole 32 passes through the inside. The water flow portion 58 is formed in a hollow structure surrounded by the upper wall portion 64, the front wall portion 66, the lower wall portion 68, the rear wall portion 70, and both lateral wall portions 72. The upper wall portion 64 is the pedestal portion 48 provided on the upper surface portion 22 of the toilet main body 12 described above. Both lateral wall portions 72 hang substantially vertically from both left and right end portions of the upper wall portion 64. The lower wall portion 68 connects the lower end portions of both lateral wall portions 72. The rear wall part 70 separates the inside of the water flow part 58 and the inside of the storage part 50. The front wall portion 66 is a part of the inner peripheral portion of the upper end of the toilet bowl portion 14 and separates the toilet bowl portion 14 from the water passage portion 58. The front wall portion 66 is formed to be curved so as to be recessed toward the back side, which is the side away from the water discharge hole 32 of the water flow portion 58. The toilet body 12 includes a first shielding wall 74 that connects both the lateral walls 72 and the front wall 66.

通水部５８の下壁部６８は、図３に示すように、前後方向の中間位置で左右方向の内寸法を狭めるとともに、その中間位置から前後方向の両側に向かうにつれて内寸法を広げる形状に形成される段差部７６を有する。通水部５８の下壁面７８は、段差部７６を境界として左右方向内側の方が外側より低位置となるように高低差が設けられる。通水部５８の便鉢部１４寄りの位置には、前壁部６６と段差部７６の間にて左右方向の外側に袋小路となるように行き止まり部８０が設けられる。段差部７６の左右方向の内寸法が狭くなる部位には孔壁部８２が設けられ、孔壁部８２内には上下に貫通する取付孔８４が形成される。 As shown in FIG. 3, the lower wall portion 68 of the water flow portion 58 narrows the inner dimension in the left-right direction at the middle position in the front-rear direction, and widens the inner dimension from the middle position toward both sides in the front-rear direction. A stepped portion 76 is formed. The lower wall surface 78 of the water flow portion 58 is provided with a height difference so that the inner side in the left-right direction is positioned lower than the outer side with the stepped portion 76 as a boundary. A dead end portion 80 is provided between the front wall portion 66 and the stepped portion 76 at a position close to the toilet bowl portion 14 of the water flow portion 58 so as to form a bag path on the outer side in the left-right direction. A hole wall 82 is provided at a portion where the inner dimension in the left-right direction of the stepped portion 76 becomes narrow, and a mounting hole 84 penetrating vertically is formed in the hole wall 82.

便鉢部１４の上端内周部の後側領域には吐水孔３２が形成される。吐水孔３２は、溜水部２６より後方であって、便鉢部１４の前方から見て左右方向の中心位置より左寄りの位置に形成される。吐水孔３２は左右方向に長い長孔である。吐水孔３２は通水部５８内に供給される洗浄水を便鉢部１４内に吐き出し、便鉢部１４内が洗浄される。 A water discharge hole 32 is formed in the rear region of the inner periphery of the upper end of the toilet bowl 14. The water discharge hole 32 is formed behind the water reservoir 26 and at a position on the left side of the center position in the left-right direction when viewed from the front of the toilet bowl 14. The water discharge hole 32 is a long hole long in the left-right direction. The water discharge hole 32 discharges the wash water supplied into the water flow portion 58 into the toilet bowl 14 so that the inside of the toilet bowl 14 is washed.

便器本体１２は、図１、図３に示すように、本便器本体１２の鋳込み成形時に通水部５８内で生じる未硬化状態の泥しょうを下方に排出するための排泥通路８６を備える。排泥通路８６は、通水部５８の便鉢部１４寄りの位置において形成される流入口８８と、流入口８８より下方に形成される流出口９０とを有する。ここでの「便鉢部１４寄りの位置」とは、通水部５８の前後方向の中心位置Ｐ１（図３参照）より便鉢部１４寄りの位置をいう。排泥通路８６は、便鉢部１４の後側の一部領域９３の裏側に形成され、その一部領域９３の形状に沿うように、流入口８８から下方の流出口９０に向けて形成される。 As shown in FIGS. 1 and 3, the toilet main body 12 includes a mud passage 86 for discharging uncured mud generated in the water passage portion 58 when the toilet main body 12 is cast and formed downward. The mud drainage passage 86 has an inlet 88 formed at a position near the toilet bowl 14 of the water passing portion 58 and an outlet 90 formed below the inlet 88. Here, the “position closer to the toilet bowl 14” refers to a position closer to the toilet bowl 14 than the center position P1 in the front-rear direction of the water flow section 58 (see FIG. 3). The mud drainage passage 86 is formed on the back side of the partial region 93 on the rear side of the toilet bowl portion 14, and is formed from the inlet 88 toward the lower outlet 90 so as to follow the shape of the partial region 93. The

流入口８８は、前壁部６６に形成される吐水孔３２とは別に形成され、その前壁部６６と下壁面７８との間の隅角部９２に形成される。また、流入口８８は、通水部５８の左右方向の中心位置に形成される。流入口８８は、吐水孔３２から作業者の指を入れたときに指が届く範囲に設けられる。 The inflow port 88 is formed separately from the water discharge hole 32 formed in the front wall portion 66, and is formed in the corner portion 92 between the front wall portion 66 and the lower wall surface 78. The inflow port 88 is formed at the center position in the left-right direction of the water flow portion 58. The inflow port 88 is provided in a range where the finger can reach when the operator's finger is inserted through the water discharge hole 32.

吐水孔３２と流入口８８は、図示しないが、便器本体１２を正面視したとき、互いの左右方向位置が重ならないように、左右方向に位置をずらして設けられる。吐水孔３２と流入口８８は、便器本体１２を正面視したとき、吐水孔３２が形成される前壁部６６の後方に流入口８８が隠れるような位置関係に設けられることになる。これにより、便鉢部１４の内側から吐水孔３２を通して通水部５８を覗いたとき、流入口８８を見え難くできる。 Although not shown, the water discharge hole 32 and the inflow port 88 are provided so as to be shifted in the left-right direction so that the left-right position does not overlap each other when the toilet body 12 is viewed from the front. The water discharge hole 32 and the inflow port 88 are provided in a positional relationship such that the inflow port 88 is hidden behind the front wall portion 66 where the water discharge hole 32 is formed when the toilet main body 12 is viewed from the front. Thereby, when looking into the water flow part 58 from the inner side of the toilet bowl part 14 through the water discharge hole 32, the inflow port 88 can be made difficult to see.

流出口９０は、トラップ部１６の第１下降通路３６に向けて開放し、上昇通路３８の下面の上端９４より下方に位置する。これにより、トラップ部１６内に封水４４が貯溜されたとき、流出口９０は、封水面９６より下方に位置、つまり、封水４４内に配置される。 The outlet 90 opens toward the first descending passage 36 of the trap portion 16 and is located below the upper end 94 on the lower surface of the ascending passage 38. Thereby, when the sealing water 44 is stored in the trap part 16, the outlet 90 is located below the sealing surface 96, that is, in the sealing water 44.

排泥通路８６は、流入口８８側から詰められる蓋材９８により、流入口８８を含む上端部領域が閉塞される。蓋材９８は、便器本体１２と同質の陶器原料を素材とする。蓋材９８は、排泥通路８６内に詰められるとき、泥状の泥しょうより水分含有量が少なくある程度の定形性があり、かつ、乾燥により硬化する性質のある陶器素材が用いられる。この蓋材９８は、未硬化状態のまま流入口８８側から押し込み、乾燥により硬化させることにより排泥通路８６内に固定される。蓋材９８の上面は周囲の通水部５８の下壁面７８と滑らかに連なる。 The upper end portion region of the mud discharge passage 86 including the inflow port 88 is closed by a lid 98 packed from the inflow port 88 side. The lid material 98 is made of a pottery material having the same quality as the toilet body 12. The lid material 98 is made of a pottery material having a certain amount of regularity with a moisture content lower than that of a mud-like mud and being hardened by drying when packed in the mud passage 86. The lid member 98 is fixed in the mud discharge passage 86 by being pushed in from the inlet 88 side in an uncured state and cured by drying. The upper surface of the lid member 98 is smoothly connected to the lower wall surface 78 of the surrounding water passing portion 58.

通水部５８の下壁面７８には勾配を有する複数の案内領域１００が設けられる。案内領域１００は、本例では、下壁面７８の全域に亘り設けられる。ここでの勾配とは、水平面に対する傾きをいう。各案内領域１００の勾配は、各案内領域１００上の泥しょう、水等の流動体を排泥通路８６の流入口８８まで案内可能に設けられる。 The lower wall surface 78 of the water flow portion 58 is provided with a plurality of guide areas 100 having a gradient. In this example, the guide area 100 is provided over the entire lower wall surface 78. The gradient here refers to an inclination with respect to a horizontal plane. The gradient of each guide region 100 is provided so that fluid such as mud and water on each guide region 100 can be guided to the inlet 88 of the mud passage 86.

案内領域１００は、図３に示すように、段差部７６より下位に設けられる第１案内領域１００Ａ〜第４案内領域１００Ｄと、段差部７６より上位に設けられる第５案内領域１００Ｅ、第６案内領域１００Ｆとを有する。本図では各案内領域１００Ａ〜１００Ｆの勾配を矢印で示す。第１案内領域１００Ａ、第２案内領域１００Ｂは、通水部５８の便鉢部１４側とは反対の奥側であって、左右方向中間位置を挟んだ左右両側に設けられる。第３案内領域１００Ｃ、第４案内領域１００Ｄは、通水部５８の便鉢部１４側に行き止まり部８０を含む範囲であって、左右方向中間位置を挟んだ左右両側に設けられる。第５案内領域１００Ｅ、第６案内領域１００Ｆは、左右方向中間位置を挟んだ左右両側に設けられる。 As shown in FIG. 3, the guide area 100 includes a first guide area 100 A to a fourth guide area 100 D provided below the stepped portion 76, a fifth guide area 100 E provided above the stepped portion 76, and a sixth guide. And a region 100F. In this figure, the gradient of each of the guide areas 100A to 100F is indicated by arrows. The first guide area 100A and the second guide area 100B are provided on the back side opposite to the toilet bowl part 14 side of the water flow part 58 and on both the left and right sides with the intermediate position in the left-right direction interposed therebetween. The third guide region 100C and the fourth guide region 100D are ranges including the dead end portion 80 on the toilet bowl portion 14 side of the water flow portion 58, and are provided on both the left and right sides with respect to the intermediate position in the left-right direction. The fifth guide region 100E and the sixth guide region 100F are provided on both the left and right sides of the intermediate position in the left-right direction.

第１案内領域１００Ａ、第２案内領域１００Ｂは、通水部５８の奥側から便鉢部１４側に向かう方向であって、左右方向中間位置に向かう方向に下り勾配となる。第３案内領域１００Ｃ、第４案内領域１００Ｄは、左右方向の外側寄りの範囲において、行き止まり部８０の左右方向の外側から左右方向の中間位置に向かう方向であって、通水部５８の奥側に向かう方向に下り勾配となる。また、第３案内領域１００Ｃ、第４案内領域１００Ｄは、左右方向の内側寄りの範囲において、左右方向の外側から左右方向の中間位置に向かう方向に下り勾配となる。第５案内領域１００Ｅ、第６案内領域１００Ｆは、左右方向の中間位置に向かう方向に下り勾配となる。第５案内領域１００Ｅ、第６案内領域１００Ｆ上の流動体は段差部７６側に案内され、段差部７６から第１案内領域１００Ａ〜第４案内領域１００Ｄ上に落ちる。第１案内領域１００Ａ〜第４案内領域１００Ｄ上にある流動体は、勾配の下側にある流入口８８まで案内される。 The first guide region 100A and the second guide region 100B have a downward slope in a direction from the back side of the water flow portion 58 toward the toilet bowl portion 14 and toward the intermediate position in the left-right direction. The third guide region 100C and the fourth guide region 100D are directions from the outer side in the left-right direction of the dead end portion 80 toward the middle position in the left-right direction in the range closer to the outer side in the left-right direction, Downhill in the direction toward In addition, the third guide region 100C and the fourth guide region 100D have a downward slope in a direction from the outside in the left-right direction toward the intermediate position in the left-right direction in a range closer to the inside in the left-right direction. The fifth guide region 100E and the sixth guide region 100F have a downward slope in the direction toward the intermediate position in the left-right direction. The fluid on the fifth guide region 100E and the sixth guide region 100F is guided to the stepped portion 76 side, and falls from the stepped portion 76 onto the first guide region 100A to the fourth guide region 100D. The fluid on the first guide region 100A to the fourth guide region 100D is guided to the inlet 88 on the lower side of the gradient.

図４は便器本体１２の側面図である。図２は本図のＡ−Ａ線断面図でもある。
便器本体１２は、図１、図２、図４に示すように、リム部４６の外周縁部から下方に延びる周壁部１１０を備える。周壁部１１０は、便鉢部１４を前方、両側方から覆い、下方に向かうにつれて僅かに内側に向けて傾斜する。周壁部１１０は、その下端面が床面１１２上に載せられる。また、便器本体１２は、図１、図２に示すように、周壁部１１０の内周部の下側領域と便鉢部１４の外周面の下側領域とをつなぐ支持壁部１１４を備える。また、便器本体１２は、便鉢部１４とリム部４６と周壁部１１０と支持壁部１１４とにより囲まれる空間１１６が形成される。空間１１６は、便鉢部１４の前方、両側方にて周方向に広がるように形成される。また、便器本体１２は、図２、図４に示すように、周壁部１１０の両横側の後端部と便鉢部１４の外周面とをつなぐ第２遮壁部１１８を備える。第２
遮壁部１１８の上端部は、上面部２２の下面につながれる。 FIG. 4 is a side view of the toilet body 12. FIG. 2 is also a cross-sectional view taken along the line AA in FIG.
As shown in FIGS. 1, 2, and 4, the toilet body 12 includes a peripheral wall portion 110 that extends downward from the outer peripheral edge portion of the rim portion 46. The peripheral wall part 110 covers the toilet bowl part 14 from the front and both sides, and inclines slightly inward as it goes downward. The lower end surface of the peripheral wall portion 110 is placed on the floor surface 112. 1 and 2, the toilet body 12 includes a support wall portion 114 that connects a lower region of the inner peripheral portion of the peripheral wall portion 110 and a lower region of the outer peripheral surface of the toilet bowl portion 14. Further, the toilet body 12 is formed with a space 116 surrounded by the toilet bowl part 14, the rim part 46, the peripheral wall part 110, and the support wall part 114. The space 116 is formed so as to expand in the circumferential direction in front of the toilet bowl 14 and on both sides. 2 and 4, the toilet body 12 includes a second barrier 118 that connects the rear ends of both sides of the peripheral wall 110 and the outer peripheral surface of the toilet bowl 14. Second
The upper end portion of the shielding wall portion 118 is connected to the lower surface of the upper surface portion 22.

空間１１６は便鉢部１４、リム部４６、周壁部１１０、支持壁部１１４により囲まれて形成され、通水部５８内の空間は、前述のように、上壁部６４、前壁部６６、下壁部６８、後壁部７０、両横壁部７２に囲まれて形成される。つまり、空間１１６と通水部５８内の空間とは別々の空間となるように区画される。 The space 116 is formed by being surrounded by the toilet bowl portion 14, the rim portion 46, the peripheral wall portion 110, and the support wall portion 114, and the space in the water flow portion 58 includes the upper wall portion 64 and the front wall portion 66 as described above. The lower wall portion 68, the rear wall portion 70, and both lateral wall portions 72 are surrounded. That is, the space 116 and the space in the water flow section 58 are partitioned so as to be separate spaces.

以上の便器本体１２では、図２に示すように、複数の吐出部５４、５５から洗浄水が吐き出されると、通水部５８内で吐水孔３２に供給される第１内部主流Ｆ３、第２内部主流Ｆ４が形成される。第１内部主流Ｆ３は第１吐出部５４から吐水孔３２に向けて流れる。第２内部主流Ｆ４は第２吐出部５５から右側の行き止まり部８０に向けて流れ、その行き止まり部８０から吐水孔３２に導かれる。各内部主流Ｆ３、Ｆ４は吐水孔３２から便鉢部１４内に吐き出され、鉢面部２４内を旋回する第１主流Ｆ１と、吐水孔３２から溜水部２６に向けて流れ、鉢面部２４内から溜水部２６内に落ち込むように流入する第２主流Ｆ２とが形成される。第１主流Ｆ１、第２主流Ｆ２により便鉢部１４内が洗浄され、便鉢部１４内の汚物がトラップ部１６に向けて排出される。 In the toilet body 12 described above, as shown in FIG. 2, when the wash water is discharged from the plurality of discharge portions 54 and 55, the first internal main flow F 3 and the second main flow F 3 supplied to the water discharge hole 32 in the water flow portion 58. An internal mainstream F4 is formed. The first internal main flow F3 flows from the first discharge part 54 toward the water discharge hole 32. The second internal main flow F4 flows from the second discharge portion 55 toward the right dead end portion 80, and is guided from the dead end portion 80 to the water discharge hole 32. The internal mainstreams F3 and F4 are discharged from the water discharge hole 32 into the toilet bowl 14, and flow into the first main flow F1 swirling in the pot surface 24 and the water storage section 26 from the water discharge hole 32. The second main flow F 2 that flows so as to fall into the water storage portion 26 is formed. The inside of the toilet bowl 14 is washed by the first main stream F1 and the second main stream F2, and the filth in the toilet bowl 14 is discharged toward the trap unit 16.

図５は複数の型枠を用いて便器本体１２を成形する途中状態を示す図である。
型枠は石膏等の吸水性を有する素材を用いて構成される。型枠は、本例では、上側に配置される上型枠１０２Ａ、下側に配置される下型枠１０２Ｂ、左右両側に配置される一対の横型枠１０２Ｃが用いられる。各型枠１０２Ａ〜１０２Ｃは便器本体１２の形状に応じた隙間空間が形成されるように配置され、下型枠１０２Ｂに形成される複数の通路１０３を通して隙間空間に泥しょうが流し込まれる。各通路１０３は、便器本体１２の下方に面する複数の部位に対応する箇所に繋がるように設けられる。より詳細には、各通路１０３は、便器本体１２のトラップ部１６の第１下降通路３６と上昇通路３８の間の下端部、支持壁部１１４、排出口４２の中央位置に対応する箇所に繋がるように設けられる。各型枠１０２Ａ〜１０２Ｃの隙間空間には、水頭圧、ポンプ等を利用して圧力をかけて泥しょう
が流し込まれ、圧力をかけた状態で保持される。泥しょうは各型枠１０２の表面に沿って硬化し、中間成形品１０４が得られる。この中間成形品１０４には、各通路１０３と繋がる位置に排出穴１０８が設けられる。 FIG. 5 is a view showing a state in the middle of molding the toilet body 12 using a plurality of molds.
A formwork is comprised using the raw material which has water absorption, such as gypsum. In this example, an upper mold frame 102A disposed on the upper side, a lower mold frame 102B disposed on the lower side, and a pair of horizontal mold frames 102C disposed on the left and right sides are used as the mold frames. The molds 102A to 102C are arranged so that a gap space corresponding to the shape of the toilet body 12 is formed, and mud is poured into the gap space through a plurality of passages 103 formed in the lower mold 102B. Each passage 103 is provided so as to be connected to a part corresponding to a plurality of parts facing downward of the toilet body 12. More specifically, each passage 103 is connected to a lower end portion between the first descending passage 36 and the ascending passage 38 of the trap portion 16 of the toilet body 12, a support wall portion 114, and a location corresponding to the center position of the discharge port 42. It is provided as follows. Mud is poured into the gap spaces between the molds 102A to 102C using water head pressure, a pump or the like, and is held in a state where the pressure is applied. The mud is cured along the surface of each mold 102 and an intermediate molded product 104 is obtained. The intermediate molded product 104 is provided with a discharge hole 108 at a position connected to each passage 103.

この後、中間成形品１０４内に残る泥しょう１０６を排出する。このとき、水頭圧等を利用して圧力をかけた状態の泥しょう１０６の圧力を下げることで、中間成形品１０４の各排出穴１０８から下型枠１０２Ｂの通路１０３を通して泥しょう１０６を排出する。各排出穴１０８は中間成形品１０４の下方に面する部位に設けられるので、中間成形品１０４内の泥しょう１０６は自重により容易に排出される。また、通水部５８内の泥しょうは、流入口８８から排泥通路８６を通して下方に流れて流出口９０からトラップ部１６内に排出され、トラップ部１６の排出穴１０８を通して下方に排出される。中間成形品１０４から泥しょう１０６を排出した後、中間成形品１０４を各型枠１０２Ａ〜１０２Ｃから脱型し、乾燥等の後工程を経て成形品としての便器本体１２が完成する。 Thereafter, the mud 106 remaining in the intermediate molded product 104 is discharged. At this time, the mud 106 is discharged from each discharge hole 108 of the intermediate molded product 104 through the passage 103 of the lower mold 102B by lowering the pressure of the mud 106 in a state where pressure is applied using water head pressure or the like. . Since each discharge hole 108 is provided at a portion facing the lower side of the intermediate molded product 104, the mud 106 in the intermediate molded product 104 is easily discharged by its own weight. Further, the mud in the water flow portion 58 flows downward from the inlet 88 through the mud passage 86 and is discharged from the outlet 90 into the trap portion 16 and is discharged downward through the discharge hole 108 of the trap portion 16. . After the slurry 106 is discharged from the intermediate molded product 104, the intermediate molded product 104 is removed from each of the molds 102A to 102C, and the toilet body 12 as a molded product is completed through post-processing such as drying.

なお、中間成形品１０４の脱型後にはトラップ部１６の排出口４２となるべき部位Ａ１、供給孔６２となるべき部位Ａ２、排水入口１８となるべき部位Ａ３等が陶器素材により閉塞されているので、これらの部位を穿孔する。トラップ部１６の下端部の排出穴１０８や支持壁部１１４の排出穴１０８は、泥しょうの排出後、上述の蓋材９８と同様に便器本体１２と同質の未硬化状態の陶器素材を用いて塞ぎ、乾燥により硬化させて閉塞する。 After the intermediate molded product 104 is removed from the mold, a part A1 to be the discharge port 42 of the trap part 16, a part A2 to be the supply hole 62, a part A3 to be the drainage inlet 18, and the like are blocked by ceramic materials. So drill these sites. The discharge hole 108 at the lower end of the trap part 16 and the discharge hole 108 at the support wall part 114 are made of unhardened ceramic material of the same quality as the toilet body 12 in the same manner as the cover 98 after the mud is discharged. Close and harden by drying to close.

このように、通水部５８内の泥しょうを下方に排出できる排泥通路８６があるため、便器本体１２の上下を反転させずに排泥作業を容易に行える。よって、成形設備を簡素にでき、設備コストを抑えることで製造コストを抑えられる。 Thus, since there is a mud passage 86 that can drain mud in the water flow part 58 downward, the mud work can be easily performed without turning the toilet body 12 upside down. Therefore, the molding equipment can be simplified, and the manufacturing cost can be reduced by reducing the equipment cost.

また、通水部５８の下壁面には流入口８８まで泥しょうを案内する案内領域１００が設けられるため、通水部５８内の泥しょうを自重により流入口８８まで案内できる。よって、成形設備に便器本体１２を傾ける等の機能がなくとも通水部５８内の泥しょうを排出でき、成形設備を更に簡素にでき、設備コストを更に抑えられる。 Further, since the guide area 100 for guiding the mud to the inflow port 88 is provided on the lower wall surface of the water flow unit 58, the mud in the water flow unit 58 can be guided to the inflow port 88 by its own weight. Therefore, even if the molding facility does not have a function of tilting the toilet body 12 or the like, the mud in the water flow portion 58 can be discharged, the molding facility can be further simplified, and the equipment cost can be further reduced.

また、通水部５８の便鉢部１４寄りの位置に流入口８８が設けられ、通水部５８の下壁面７８には洗浄水を流入口８８まで案内可能な勾配の案内領域１００が設けられるため、通水部５８内には便鉢部１４寄りの位置で案内領域１００の勾配の下側に残水が溜まり易くなる。洗浄水供給装置６０の各吐出部５４、５５から洗浄水を吐き出し、第１内部主流Ｆ３、第２内部主流Ｆ４を形成すると、この残水を巻き込んで吐水孔３２まで供給し易くなる。よって、長期間に亘り同じ箇所に残水が滞留し難くなり、通水部５８内を衛生的に保ち易くなる。 An inflow port 88 is provided at a position near the toilet bowl 14 of the water flow portion 58, and a gradient guide region 100 capable of guiding the wash water to the inflow port 88 is provided on the lower wall surface 78 of the water flow portion 58. Therefore, the remaining water tends to be accumulated in the water flow portion 58 below the slope of the guide region 100 at a position near the toilet bowl portion 14. When the cleaning water is discharged from the discharge portions 54 and 55 of the cleaning water supply device 60 to form the first internal main flow F3 and the second internal main flow F4, it becomes easy to entrain the residual water and supply it to the water discharge holes 32. Therefore, it becomes difficult for residual water to stay in the same place over a long period of time, and the inside of the water flow portion 58 can be easily maintained hygienically.

また、排泥通路８６の流出口９０は排水路３４に向けて開放するため、通水部５８内の泥しょうを排泥通路８６を通して排水路３４に排出できる。便器本体１２の下方に面する部位に設けられる排水路３４には、通常、その内部の泥しょうを外部に排出するときに用いられる排出穴１０８が設けられるため、その排出穴１０８を利用して通水部５８内の泥しょうも外部に排出可能となる。 Further, since the outlet 90 of the mud passage 86 is opened toward the drainage channel 34, the mud in the water flow portion 58 can be discharged to the drainage channel 34 through the mud passage 86. Since the drainage channel 34 provided in the portion facing the lower side of the toilet body 12 is usually provided with a discharge hole 108 used when discharging the mud inside, the discharge hole 108 is used. The mud within the water flow section 58 can also be discharged to the outside.

また、排泥通路８６が閉塞されるため、便器本体１２の成形時には排泥通路８６を用いて泥しょうを排出しつつ、便器本体１２の利用時には排泥通路８６を通して通水部５８内への空気等の逆流を防止できる。 In addition, since the mud passage 86 is closed, the mud is discharged using the mud passage 86 when the toilet body 12 is molded, while the mud passage 86 passes through the mud passage 86 when the toilet body 12 is used. Backflow of air etc. can be prevented.

また、排泥通路８６は流入口８８側から詰められる蓋材９８により閉塞される。かりに、トラップ部１６内のような奥まった位置にある流出口９０側から蓋材９８を詰めるとなると、蓋材９８を詰めたか否かの確認をし難いうえ、便鉢部１４内に深く手を入れる等して作業時に不自然な姿勢となり、作業性の悪化を招く。この点、流入口８８側から蓋材９８を詰めるうえでは、便器本体１２の上側から吐水孔３２等をのぞき込みながら、その吐水孔３２等に指を入れての作業になり、蓋材９８を詰めたか否かの確認しつつ、作業時に自然な姿勢を取りながら作業でき、そのときの作業性がよくなる。特に、流入口８８は、吐水孔３２から作業者の指を入れたときに指が届く範囲にあるため、蓋材９８を詰める作業を更にし易くなる。 Further, the mud discharge passage 86 is closed by a lid member 98 packed from the inflow port 88 side. However, if the lid 98 is packed from the outlet 90 side in a deep position like the trap portion 16, it is difficult to check whether the lid 98 has been packed or not, and the hand is deeply inserted into the toilet bowl 14. For example, putting in an unnatural posture during work causes deterioration of workability. In this regard, when filling the lid 98 from the inflow port 88 side, the operator inserts a finger into the water discharge hole 32 and the like while looking into the water discharge hole 32 from the upper side of the toilet body 12. It is possible to work while taking a natural posture at the time of work while confirming whether or not the work has been performed, and workability at that time is improved. In particular, since the inflow port 88 is in a range where the finger can reach when the operator's finger is inserted through the water discharge hole 32, the operation of filling the lid member 98 is further facilitated.

また、便鉢部１４の上端内周部には、鉢面部２４の上縁部から便鉢部１４の上端縁部２０に向けて立ち上がる立面部３０が設けられ、ひさし状に内側に張り出す部位がなくなる。よって、便鉢部１４内を上側から見たときに、便鉢部１４の上端内周部に生じた汚れを視認し易くなるうえ、清掃時に汚れを除き易くなる。 Further, an upper end inner peripheral portion of the toilet bowl portion 14 is provided with an elevating surface portion 30 that rises from the upper edge portion of the bowl surface portion 24 toward the upper end edge portion 20 of the toilet bowl portion 14, and projects inwardly in an eave shape. The part disappears. Therefore, when the inside of the toilet bowl part 14 is seen from the upper side, the stain | pollution | contamination produced in the upper end inner peripheral part of the toilet bowl part 14 becomes easy to visually recognize, and it becomes easy to remove a dirt at the time of cleaning.

また、便器本体１２には周壁部１１０が設けられるため、便鉢部１４の凹凸のある外観が露出せず、意匠性が良好となる。また、周壁部１１０が区画する空間１１６は通水部５８内の空間とは別々の空間として区画されるため、意匠性を良好にしつつも、通水部５８から空間１１６への洗浄水の流入を抑えられる。 Moreover, since the surrounding wall part 110 is provided in the toilet bowl main body 12, the uneven appearance of the toilet bowl part 14 is not exposed, and the design property becomes favorable. Further, since the space 116 defined by the peripheral wall portion 110 is partitioned as a space separate from the space in the water flow portion 58, the flow of the cleaning water from the water flow portion 58 to the space 116 while improving the design. Can be suppressed.

［第１の実施の形態］
図６は第１実施形態に係る便器本体１２が用いられる水洗大便器１０を示す側面断面図である。
図１の排泥通路８６の流出口９０は、トラップ部１６の第１下降通路３６に向けて開放する例を説明した。本実施形態の排泥通路８６（本発明における「連通路」）の流出口９０は、トラップ部１６の封水４４内にて上昇通路３８の下流側に向けて開放する。流出口９０は、上昇通路３８の上面の下端９５より上方に位置する。また、流出口９０は、上昇通路３８の下面の上端９４より下方に位置しており、封水面９６より下方に位置、つまり、封水４４内に配置される。 [First Embodiment]
FIG. 6 is a side sectional view showing the flush toilet 10 in which the toilet body 12 according to the first embodiment is used.
An example in which the outlet 90 of the mud discharge passage 86 in FIG. 1 is opened toward the first descending passage 36 of the trap portion 16 has been described. The outflow port 90 of the mud discharge passage 86 (“communication passage” in the present invention) of the present embodiment opens toward the downstream side of the ascending passage 38 in the sealed water 44 of the trap portion 16. The outlet 90 is located above the lower end 95 of the upper surface of the ascending passage 38. The outlet 90 is located below the upper end 94 of the lower surface of the ascending passage 38 and is located below the sealing surface 96, that is, in the sealing water 44.

また、図２の排泥通路８６は蓋材９８により閉塞されたが、本実施形態の排泥通路８６は流入口８８から流出口９０にかけての範囲で開かれており、通水部５８内の洗浄水を排泥通路８６を通して排水路３４に流通可能に設けられる。 In addition, although the mud passage 86 in FIG. 2 is closed by the lid 98, the mud passage 86 of the present embodiment is opened in the range from the inlet 88 to the outlet 90, The cleaning water is provided so as to be able to flow through the mud passage 86 to the drainage channel 34.

以上の便器本体１２では、通水部５８内の洗浄水を排泥通路８６を通して排水路３４に流通可能であるため、通水部５８内の残水が排水路３４まで流れ落ち易くなる。よって、通水部５８内に残水が滞留し難くなり、通水部５８内を衛生的に保ち易くなる。特に、通水部５８には案内領域１００が設けられるため、その案内領域１００により流入口８８まで多くの残水を案内して排水路３４まで流れ落とせ、通水部５８内をより衛生的に保ち易くなる。 In the toilet main body 12 described above, since the wash water in the water flow portion 58 can be circulated through the mud passage 86 to the drainage channel 34, the residual water in the water flow portion 58 easily flows down to the drainage channel 34. Therefore, it becomes difficult for residual water to stay in the water flow portion 58, and the water flow portion 58 is easily kept hygienic. In particular, since the guide area 100 is provided in the water flow section 58, a large amount of remaining water is guided to the inflow port 88 by the guide area 100 and flows down to the drainage channel 34, so that the inside of the water flow section 58 is more sanitary. Easy to keep.

また、排泥通路８６の流出口９０はトラップ部１６の封水４４内に配置されるため、排水路３４の下流側の下水側からの汚臭の逆流が封水４４により遮断される。よって、排泥通路８６が開いている場合でも、封水４４により下水側からの汚臭の逆流を防止できる。 Further, since the outlet 90 of the mud passage 86 is disposed in the sealed water 44 of the trap portion 16, the backflow of odor from the sewage side downstream of the drainage channel 34 is blocked by the sealed water 44. Therefore, even when the mud discharge passage 86 is open, the backflow of the foul odor from the sewage side can be prevented by the sealing water 44.

また、排泥通路８６の流出口９０はトラップ部１６の封水４４内にて下流側に向けて開放している。よって、通水部５８内に洗浄水を供給したとき、吐水孔３２から洗浄水が便鉢部１４内に吐き出されつつ、排泥通路８６を通して流出口９０からトラップ部１６に向けて方向Ｐに洗浄水が吐き出される。このとき、トラップ部１６内の洗浄水に下流側に向かう水勢を与えられる。よって、いわゆるゼット孔を設けた場合と同様、トラップ部１６内の汚物を洗浄水により排出する排出性能が高められる。また、サイホン作用を利用して排出するサイホン式便器に適用した場合、サイホン作用を早期に生じさせて、より効果的に排出性能を高められる。 Further, the outlet 90 of the mud discharge passage 86 is opened toward the downstream side in the sealed water 44 of the trap portion 16. Therefore, when the cleaning water is supplied into the water flow portion 58, the cleaning water is discharged from the water discharge hole 32 into the toilet bowl portion 14, and in the direction P from the outlet 90 toward the trap portion 16 through the drainage passage 86. Wash water is spit out. At this time, the water flow toward the downstream side is given to the cleaning water in the trap portion 16. Therefore, as in the case where so-called zet holes are provided, the discharge performance for discharging the filth in the trap portion 16 with the washing water is enhanced. Moreover, when it applies to the siphon type toilet which discharges using a siphon action, a siphon action is produced early and discharge performance can be improved more effectively.

また、トラップ部１６の上昇通路３８は、便鉢部１４の上方から内部を見たとき、視認できない位置にある。溜水部２６内にゼット孔を設けた場合、ゼット孔内に水垢等の汚れがついたとき、汚れが見えてしまい、外観を損ないかねない。この点、本実施形態によれば、ゼット孔と同様の機能を有する流出口９０を設けた場合でも、その流出口９０に汚れが生じてもユーザから見えず、外観を損なわない利点がある。 Further, the rising passage 38 of the trap portion 16 is in a position where it cannot be seen when the inside is seen from above the toilet bowl portion 14. In the case where a jet hole is provided in the water storage section 26, when dirt such as water stains is found in the jet hole, the dirt is visible and the appearance may be impaired. In this respect, according to the present embodiment, even when the outlet 90 having the same function as the jet hole is provided, even if the outlet 90 is contaminated, there is an advantage that it is not visible to the user and the appearance is not impaired.

また、トラップ部１６内の洗浄水が排出された後、補給水としての洗浄水が便鉢部１４内や排泥通路８６を通してトラップ部１６内に流れ、封水４４が貯溜される。この補給水がトラップ部１６内に流れる過程では、排泥通路８６を流れる補給水が空気を巻き込みつつトラップ部１６内に流れ込むことで、封水面９６に気泡が生じてしまう。この気泡は、破裂により異音が生じたり、ユーザに見えてしまうと見た目が悪くなる等して外観に影響してしまう。この点、本実施形態によれば、排泥通路８６の流出口９０が上昇通路３８の下流側に向けて開放しているため、排泥通路８６を通してトラップ部１６内に流れ込む気泡が上昇通路３８の上面の下端９５より下流側に流れ易くなり、便鉢部１４内にまで流入し難くなる。よって、気泡はトラップ部１６内において封水４４より下流側の空間内で破裂し易くなり、便鉢部１４内で気泡が破裂するよりも、異音の影響が大きく抑えられる。また、便鉢部１４内まで気泡が流入し難くなるため、気泡による外観への影響も抑えられる。 Further, after the cleaning water in the trap part 16 is discharged, the cleaning water as makeup water flows into the trap part 16 through the toilet bowl part 14 and the mud passage 86, and the sealed water 44 is stored. In the process in which the makeup water flows into the trap portion 16, the makeup water flowing through the mud passage 86 flows into the trap portion 16 while entraining air, thereby generating bubbles on the sealing surface 96. These bubbles may affect the appearance by generating abnormal noise due to rupture or making it look bad when viewed by the user. In this regard, according to the present embodiment, since the outlet 90 of the mud passage 86 is opened toward the downstream side of the ascending passage 38, the bubbles flowing into the trap portion 16 through the mud passage 86 are raised. It becomes easy to flow to the downstream side from the lower end 95 of the upper surface, and it is difficult to flow into the toilet bowl 14. Accordingly, the bubbles are easily ruptured in the space downstream of the sealed water 44 in the trap portion 16, and the influence of abnormal noise is greatly suppressed as compared with the case where the bubbles are ruptured in the toilet bowl portion 14. Moreover, since it becomes difficult for a bubble to flow in into the toilet bowl part 14, the influence on the external appearance by a bubble is also suppressed.

［第２の参考の形態］
図７は第２参考形態に係る便器本体１２が用いられる水洗大便器１０を示す側面断面図である。
図１では、便鉢部１４の上端内周部に立面部３０が設けられる例を説明した。この他にも、便鉢部１４の上端内周部にはひさし状に内側に張り出す返し部１２０が設けられてもよい。返し部１２０は、環状に連続して設けられるが、鉢面部２４の周方向の一部に亘る範囲でのみ連続して設けられてもよい。これにより、便鉢部１４内に洗浄水を流したときや、便鉢部１４内に立ち小便をしたときに、便鉢部１４内で飛沫が生じた場合でも、返し部１２０の下面に飛沫が当たり、その便鉢部１４外への飛散を抑えられる。 [Second Reference Form]
FIG. 7 is a side sectional view showing the flush toilet 10 in which the toilet body 12 according to the second reference embodiment is used.
In FIG. 1, the example in which the elevation surface portion 30 is provided on the inner peripheral portion of the upper end of the toilet bowl portion 14 has been described. In addition to this, a return portion 120 that protrudes inward in an eave shape may be provided on the inner periphery of the upper end of the toilet bowl portion 14. Although the return part 120 is continuously provided in an annular shape, it may be provided continuously only in a range over a part of the circumferential direction of the bowl surface part 24. Thereby, when washing water is poured into the stool part 14 or when a urine is erected within the stool part 14, it is splashed on the lower surface of the return part 120 even when splashing occurs in the stool part 14. And the scattering to the outside of the toilet bowl part 14 is suppressed.

以上、実施の形態に基づき本発明を説明したが、実施の形態は、本発明の原理、応用を示すにすぎない。また、実施の形態には、請求の範囲に規定された本発明の思想を逸脱しない範囲において、多くの変形例や配置の変更が可能である。 As mentioned above, although this invention was demonstrated based on embodiment, embodiment only shows the principle and application of this invention. In the embodiment, many modifications and arrangements can be made without departing from the spirit of the present invention defined in the claims.

排泥通路８６の流入口８８は、通水部５８の下壁面７８に形成される例を説明したが、通水部５８の内面であればよく、段差部７６や横壁部７２等に形成されてもよい。排泥通路８６の流出口９０は、トラップ部１６の第１下降通路３６や上昇通路３８内にて下流側に向けて開放する例を説明したが、トラップ部１６の第２下降通路４０内に向けて開放してもよい。また、排泥通路８６の流出口９０は、便器本体１２の成形時に通水部５８内で生じる泥しょうを下方に排出できればよく、便器本体１２の外部に向けて開放していてもよい。 Although the example in which the inflow port 88 of the mud passage 86 is formed in the lower wall surface 78 of the water flow portion 58 has been described, it may be the inner surface of the water flow portion 58 and may be formed in the stepped portion 76, the lateral wall portion 72, or the like. May be. The example in which the outlet 90 of the mud discharge passage 86 is opened toward the downstream side in the first descending passage 36 and the ascending passage 38 of the trap portion 16 has been described. You may open it. Further, the outlet 90 of the mud discharge passage 86 may be open to the outside of the toilet main body 12 as long as mud generated in the water passage portion 58 when the toilet main body 12 is molded can be discharged downward.

また、排泥通路８６は、少なくとも一部が蓋材９８により閉塞されていればよく、その閉塞位置は流入口８８を含む上端部領域に限られず、流出口９０を含む下端部領域の他、その全体が閉塞されていてもよい。また、蓋材９８は、便器本体１２と同質の原料を素材とせずに、ゴム等を素材としてもよい。 Moreover, the sludge passage 86 only needs to be at least partially closed by the lid member 98, and the closed position is not limited to the upper end region including the inflow port 88, but in addition to the lower end region including the outflow port 90, The whole may be occluded. The lid 98 may be made of rubber or the like without using the same material as the toilet body 12.

また、便鉢部１４の形状は特に限られず、公知の形状が用いられてもよい。また、便鉢部１４を環状に連続して設けるうえでは、単一の吐水孔３２ではなく複数の吐水孔３２のみが開口として形成されてもよい。また、洗浄水供給装置６０は貯水タンク５２と分配器５６とを備える例を説明した。洗浄水供給装置６０は、通水部５８に洗浄水を供給できればよく、貯水タンク５２のみ備えてもよいし、フラッシュバルブ等により構成されてもよい。 Moreover, the shape of the toilet bowl part 14 is not specifically limited, A well-known shape may be used. Moreover, when providing the toilet bowl part 14 continuously cyclically | annularly, not only the single water discharge hole 32 but the some water discharge hole 32 may be formed as an opening. Further, the example in which the cleaning water supply device 60 includes the water storage tank 52 and the distributor 56 has been described. The cleaning water supply device 60 only needs to be able to supply cleaning water to the water flow section 58 and may include only the water storage tank 52 or may be configured by a flash valve or the like.

１２…便器本体、１４…便鉢部、１６…トラップ部、１８…排水入口、３２…吐水孔、３４…排水路、４４…封水、５８…通水部、６０…洗浄水供給装置、７８…下壁面、８６…排泥通路、８８…流入口、９０…流出口、９８…蓋材、１００…案内領域 DESCRIPTION OF SYMBOLS 12 ... Toilet body, 14 ... Toilet bowl part, 16 ... Trap part, 18 ... Drainage inlet, 32 ... Drainage hole, 34 ... Drainage channel, 44 ... Sealed water, 58 ... Water flow part, 60 ... Washing water supply apparatus, 78 ... Lower wall surface, 86 ... Waste mud passage, 88 ... Inlet, 90 ... Outlet, 98 ... Lid, 100 ... Guide area

Claims

便鉢部と、
洗浄水供給装置から供給される洗浄水が通る中空構造の通水部と、
前記通水部内に供給される洗浄水を前記便鉢部内に吐き出す吐水孔と、
前記便鉢部の下方に形成される排水入口を通して前記便鉢部内に連通した排水路と、
前記通水部に前記吐水口とは別に形成された流入口と前記排水路に向けて開放した流出口とを有して前記通水部と前記排水路とを連通し、前記通水部内の洗浄水を前記排水路に流通する連通路と、
を備えていることを特徴とする便器本体。 Toilet bowl,
A hollow structure water passage portion through which the wash water supplied from the wash water supply device passes,
A water discharge hole for discharging the wash water supplied into the water passage part into the toilet bowl,
A drainage channel communicating with the inside of the toilet bowl through a drainage inlet formed below the toilet bowl,
The water flow part has an inlet formed separately from the water outlet and an outlet opened toward the drainage channel, and the water flow unit and the drainage channel are communicated with each other. A communication path through which wash water flows to the drainage channel;
A toilet body characterized by comprising:

前記流出口は下方に向けて開口していることを特徴とする請求項１に記載の便器本体。 The toilet body according to claim 1, wherein the outlet is opened downward.

前記流入口は前記吐水口の下端よりも下方に開口していることを特徴とする請求項１又は２に記載の便器本体。 The toilet body according to claim 1 or 2, wherein the inflow port is opened below a lower end of the water outlet.

前記流入口は前記通水部の最下端部に開口していることを特徴とする請求項１乃至３のいずれか１項に記載の便器本体。 The toilet body according to any one of claims 1 to 3, wherein the inflow port is opened at a lowermost end portion of the water flow portion.