JPH11324081A - Drain structure of toilet stool - Google Patents

Drain structure of toilet stool

Info

Publication number
JPH11324081A
JPH11324081A JP13822298A JP13822298A JPH11324081A JP H11324081 A JPH11324081 A JP H11324081A JP 13822298 A JP13822298 A JP 13822298A JP 13822298 A JP13822298 A JP 13822298A JP H11324081 A JPH11324081 A JP H11324081A
Authority
JP
Japan
Prior art keywords
pipe
drainage
drain
toilet
outlet opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13822298A
Other languages
Japanese (ja)
Inventor
Yasunori Hirooka
康則 廣岡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toto Ltd
Original Assignee
Toto Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toto Ltd filed Critical Toto Ltd
Priority to JP13822298A priority Critical patent/JPH11324081A/en
Publication of JPH11324081A publication Critical patent/JPH11324081A/en
Pending legal-status Critical Current

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  • Sanitary Device For Flush Toilet (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide the drain structure of a toilet stool capable of displaying sufficient dirt discharge capacity even if an amount of washing water is small. SOLUTION: A drain pipe passage 4 connected to a drain pipe 3 comprises an upstream side pipe passage 5, a downstream side pipe passage 7 forming a bent flow passage 7a, and a connection pipe passage 6 connecting the upstream side pipe passage 5 and the downstream side pipe passage 7. The inside diameter (D1 ) of the upstream side pipe passage 5 is larger than the inside diameter (D2 ) of the outlet opening part 3a of a discharge pipe 3, the inside diameter (D3 ) of the inlet opening part 5a of the upper end of the upstream side pipe passage outward fitted to the outlet opening part 3a of the discharge pipe 3 is larger than the outside diameter (D4 ) of the outlet opening part 3a of the discharge pipe 3, and a taper continuous part 8 gradually diameter- reducing toward the downstream side is formed in the inlet opening part 5a of the upstream side pipe passage 5.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は便器本体から一体的
に延びる排水管に別体としての排水管路を接続した排水
構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage structure in which a separate drainage pipe is connected to a drainage pipe extending integrally from a toilet body.

【０００２】[0002]

【従来の技術】便器本体から垂下する排水管と床面等に
形成した排水口とをつなぐために従来から排水管路を用
いている。図５は排水管と排水管路との接続部の従来構
造を示す図であり、便器本体から延びる排水管１００の
出口開口部１０１に排水管路１０２の入口開口部１０３
をパッキン１０４を介して外嵌せしめている。そして、
排水管路１０２の下流側には屈曲流路部が設けられ、こ
の排水管１００から排出された洗浄水を上記屈曲流路部
に衝突させることでサイホン作用を早期に発生せしめ、
少ない洗浄水量で汚物の排出能力を高めるようにしてい
る。2. Description of the Related Art A drain pipe is conventionally used to connect a drain pipe hanging down from a toilet body to a drain port formed on a floor or the like. FIG. 5 is a view showing a conventional structure of a connecting portion between a drain pipe and a drain pipe, and an outlet opening 101 of a drain pipe 100 extending from a toilet body and an inlet opening 103 of a drain pipe 102.
Are externally fitted via a packing 104. And
A bent channel portion is provided on the downstream side of the drain pipe 102, and the siphon action is generated at an early stage by colliding the washing water discharged from the drain pipe 100 with the bent channel portion,
The waste water discharge capacity is increased with a small amount of washing water.

【０００３】[0003]

【発明が解決しようとする課題】上述した従来の排水構
造にあっては、排水管１００と排水管路１０２との接続
部に空間部Ｓが形成され、洗浄の際にこの空間部Ｓが空
気溜まりとなり、或いは空間部Ｓに洗浄水が流入して、
洗浄水の流水エネルギーが低減し、特に洗浄水の主流に
対して９０°以上の角度でもって洗浄水が流入すると大
幅な洗浄水の流水エネルギーの低減が生じる。その結
果、サイホンの開始が遅れ、所定の汚物排出能力を得る
ために必要な洗浄水量が多くなるという問題がある。In the above-described conventional drainage structure, a space S is formed at a connection portion between the drainage pipe 100 and the drainage pipe 102, and this space S is formed with air during cleaning. It becomes a pool or the washing water flows into the space S,
The flushing water energy is reduced, and particularly when the flushing water flows at an angle of 90 ° or more with respect to the main flow of the flushing water, the flushing water energy is greatly reduced. As a result, there is a problem that the start of the siphon is delayed, and the amount of washing water required to obtain a predetermined waste discharge capacity increases.

【０００４】[0004]

【課題を解決するための手段】上記課題を解決すべく請
求項１に記載の便器の排水構造は、便器本体から延びる
排水管と、この排水管に接続する排水管路とを有する便
器の排水構造において、前記排水管路は、前記排水管の
出口開口部に接続され、また前記出口開口部の外径より
大径の入口開口部と、この入口開口部の下流側に連続し
て形成される小径部とを備え、前記排水管路の入口開口
部から小径部に至るまでの管路形状は、洗浄水または空
気が滞留する空間部を有しない連続形状とした。According to a first aspect of the present invention, there is provided a toilet drainage structure including a drain pipe extending from a toilet body and a drain pipe connected to the drain pipe. In the structure, the drainage pipe is connected to an outlet opening of the drainage pipe, and is formed continuously with an inlet opening having a diameter larger than an outer diameter of the outlet opening and a downstream side of the inlet opening. And a pipe shape from the inlet opening of the drainage pipe to the small-diameter portion has a continuous shape having no space in which washing water or air stays.

【０００５】このような構成とすることで、洗浄水の流
水エネルギーの損失を有効に抑えることができる。即
ち、排水管路内が早期に満水状態になり、サイホン作用
が早期に発生し、汚物の排出能力も高まる。[0005] With such a configuration, the loss of flowing water energy of the washing water can be effectively suppressed. That is, the inside of the drainage pipe becomes full at an early stage, the siphon action occurs at an early stage, and the ability to discharge waste is increased.

【０００６】また、連続形としては、段差及び局部的に
凹凸のないテーパー形状とすることが好ましい。[0006] The continuous shape is preferably a tapered shape having no steps and locally unevenness.

【０００７】また、請求項３に記載の便器の排水構造
は、便器本体から延びる排水管と、この排水管に接続す
る排水管路とを有する便器の排水構造において、前記排
水管と排水管路との接続部にはパッキンが介在し、この
パッキンは前記排水管の出口開口部の外周面に当接する
第１リップ部と当該出口開口部に接続される排水管路の
入口開口部の内周面に当接する第２リップ部とを備え、
第２リップ部は第１リップ部よりも下流側に位置した構
造とした。In a third aspect of the present invention, there is provided a toilet drainage structure including a drainage pipe extending from a toilet body and a drainage pipe connected to the drainage pipe. A packing is interposed at a connection portion between the first lip portion and the inner periphery of an inlet opening of a drain pipe connected to the first lip portion and the outlet opening portion. And a second lip portion abutting the surface,
The second lip was configured to be located downstream of the first lip.

【０００８】このような構成とすることで、排水管の出
口開口部外周と排水管路の入口開口部内周との間に形成
される空間部を小さくすることができ、空気や洗浄水の
溜り量を少なくすることができる。With this configuration, the space formed between the outer periphery of the outlet opening of the drainage pipe and the inner periphery of the inlet opening of the drainage pipe can be reduced, and the air and the washing water can collect. The amount can be reduced.

【０００９】また、請求項４に記載の便器の排水構造
は、前記パッキンの一部を、排水管路とを接続した際に
排水管と排水管路とをつなぐ管路部となるようにし、排
水管の出口開口部外周と排水管路の入口開口部内周との
間に実質的に空間部が形成されないようにした。In a fourth aspect of the present invention, there is provided a toilet drainage structure, wherein a part of the packing is formed as a pipe connecting the drainage pipe and the drainage pipe when the packing is connected to the drainage pipe. A space is not substantially formed between the outer periphery of the outlet opening of the drain pipe and the inner periphery of the inlet opening of the drain pipe.

【００１０】尚、パッキンの管路部の上流端の内径を排
水管の出口開口部の内径に等しく、パッキンの管路部の
下流端の内径を排水管路の入口開口部の内径に等しくす
るか、排水管の出口開口部の内径、パッキンの管路部の
内径及び排水管路の入口開口部の内径を全て等しくする
ことで、パッキンと排水管または排水管路との境界部に
おいて洗浄水の流れを阻害することがなくなる。The inside diameter of the upstream end of the pipe section of the packing is made equal to the inside diameter of the outlet opening of the drainage pipe, and the inside diameter of the downstream end of the pipe section of the packing is made equal to the inside diameter of the inlet opening of the drainage pipe. Alternatively, by making the inner diameter of the outlet opening of the drain pipe, the inner diameter of the pipe section of the packing, and the inner diameter of the inlet opening of the drain pipe all the same, the washing water at the boundary between the packing and the drain pipe or the drain pipe is removed. It does not obstruct the flow of air.

【００１１】[0011]

【発明の実施の形態】以下に本発明の実施の形態を添付
図面に基づいて説明する。図１は本発明に係る排水構造
を適用した便器の全体図、図２は排水管と排水管路との
接続部の拡大断面図であり、便器本体１は周囲に袴部２
を有するとともに、袴部２で囲まれる空間に便器本体１
のボール部排水口につながる排水管３を一体的に垂下
し、この排水管３と床面に形成した排水口との間を排水
管路４でつないでいる。尚、便器の背面側については袴
部２に開口が設けられ、排水管３が露出している。Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an overall view of a toilet to which a drainage structure according to the present invention is applied, FIG. 2 is an enlarged sectional view of a connection portion between a drainage pipe and a drainage pipe, and a
And a toilet body 1 in a space surrounded by a hakama part 2.
And a drain pipe 3 connected to the ball part drain port is integrally hung, and the drain pipe 3 and a drain port formed on the floor surface are connected by a drain pipe 4. An opening is provided in the skirt portion 2 on the back side of the toilet, and the drain pipe 3 is exposed.

【００１２】排水管路４は排水管３に接続される上流側
管路５、屈曲流路部７ａを形成する下流側管路７及びこ
れら上流側管路５と下流側管路７とを接続する連結管路
６からなる。The drain pipe 4 is connected to the upstream pipe 5 connected to the drain pipe 3, the downstream pipe 7 forming the bent flow path portion 7 a, and connects the upstream pipe 5 to the downstream pipe 7. And a connecting pipe line 6.

【００１３】上流側管路５はアングル形状をしている。
図２に示すように、その内径（Ｄ1）は排水管３の出口
開口部３ａの内径（Ｄ2）よりも大径とされている。ま
た、排水管３の出口開口部３ａに外嵌される上流側管路
５の上端部の入口開口部５ａは、その内径（Ｄ3）が排
水管３の出口開口部３ａの外径（Ｄ4）よりも大径とさ
れている。The upstream pipe 5 has an angle shape.
As shown in FIG. 2, the inner diameter (D1) is larger than the inner diameter (D2) of the outlet opening 3a of the drain pipe 3. The inner diameter (D3) of the inlet opening 5a at the upper end of the upstream pipe 5 fitted to the outlet opening 3a of the drain pipe 3 is the outer diameter (D4) of the outlet opening 3a of the drain pipe 3. It is larger than the diameter.

【００１４】そして、上流側管路５の入口開口部５ａに
は下流側に向かって徐々に縮径するテーパ状連続部８が
形成されている。この連続部８の形状については、流水
エネルギーの低減を避けるためにできるだけ段差や凹凸
がないことが好ましいが、多少階段状になっていても差
し支えない。A tapered continuous portion 8 whose diameter gradually decreases toward the downstream side is formed at the inlet opening 5a of the upstream pipe line 5. The shape of the continuous portion 8 is preferably as small as possible in order to avoid reduction in flowing water energy, but may be somewhat stepped.

【００１５】また、排水管３の出口開口部３ａと上流側
管路５の入口開口部５ａとの間にはゴムなどからなるパ
ッキン９を介在させている。パッキン９は入口開口部５
ａの外側に位置する外側部１０と、出口開口部３ａと入
口開口部５ａとの間に入り込む内側部１１とを備え、内
側部１１には第１リップ部１２とこれよりも下方に延び
る第２リップ部１３を設け、第１リップ部１２を排水管
３の出口開口部３ａの外周面に当接させ、第２リップ部
１３を前記テーパ状連続部８表面に当接させ、排水管３
の出口開口部３ａと上流側管路５の入口開口部５ａとの
間に形成される空間部の容積を小さくしている。A packing 9 made of rubber or the like is interposed between the outlet opening 3a of the drain pipe 3 and the inlet opening 5a of the upstream pipeline 5. Packing 9 is inlet opening 5
a, and an inner portion 11 which enters between the outlet opening 3a and the inlet opening 5a. The inner portion 11 has a first lip portion 12 and a first lip portion extending downward therefrom. A second lip 13 is provided, the first lip 12 is brought into contact with the outer peripheral surface of the outlet opening 3a of the drain pipe 3, the second lip 13 is brought into contact with the surface of the tapered continuous section 8, and the drain pipe 3
The volume of the space formed between the outlet opening 3a and the inlet opening 5a of the upstream pipeline 5 is reduced.

【００１６】図３は別実施例に係る排水構造を示す図２
と同様の図、図４は図３に示す実施例のパッキンの拡大
断面図であり、この実施例にあっては、パッキン９の内
側部１１の下端に断面コ字状をなす管路部１４を設け、
排水管３に上流側管路５を外嵌した際に、管路部１４が
排水管３の出口開口部３ａと上流側管路５との間の空間
を閉塞するようにしている。FIG. 3 shows a drainage structure according to another embodiment.
FIG. 4 is an enlarged cross-sectional view of the packing of the embodiment shown in FIG. 3. In this embodiment, the lower end of the inner portion 11 of the packing 9 has a U-shaped cross section. Is established,
When the upstream pipe 5 is fitted to the drain pipe 3, the pipe section 14 closes the space between the outlet opening 3 a of the drain pipe 3 and the upstream pipe 5.

【００１７】特に管路部１４と内側部１１との間には段
部１５が設けられ、この段部１５で出口開口部３ａの下
端を受けるようにしているため、排水管３と排水管路５
との嵌合ラップ長さが自動的に設定され、挿入不足や過
剰挿入を防止することができる。In particular, a step 15 is provided between the pipe section 14 and the inner section 11, and the step 15 receives the lower end of the outlet opening 3a. 5
The length of the fitting wrap is automatically set, so that insufficient or excessive insertion can be prevented.

【００１８】尚、図３に示す実施例にあっては、排水管
３の出口開口部３ａの内径とパッキン９の管路部１４の
内径と上流側管路５の内径とが全て等しい例を図示して
いるが、出口開口部３ａの内径と上流側管路５の内径と
が異なる場合には、管路部１４の上流端の内径を出口開
口部３ａの内径と等しくし、下流端の内径を上流側管路
５の内径と等しくすれば、管路の接続部における流れが
スムーズになり、流水エネルギーの損失を防止できる。In the embodiment shown in FIG. 3, there is an example in which the inner diameter of the outlet opening 3a of the drain pipe 3, the inner diameter of the conduit 14 of the packing 9, and the inner diameter of the upstream conduit 5 are all equal. As shown, when the inner diameter of the outlet opening 3a is different from the inner diameter of the upstream pipe 5, the inner diameter of the upstream end of the pipe 14 is made equal to the inner diameter of the outlet opening 3a, and the inner diameter of the downstream end is made smaller. If the inside diameter is made equal to the inside diameter of the upstream pipe line 5, the flow at the connection portion of the pipe lines becomes smooth, and loss of flowing water energy can be prevented.

【００１９】[0019]

【発明の効果】以上に説明した如く本発明によれば、便
器本体から延びる排水管の出口開口部とこの出口開口部
に接続される排水管路の入口開口部との間において、洗
浄水が流入したり空気溜まりとなる空間部を従来よりも
大幅に少なくするか、完全に空間部をなくすことができ
るので、サイホンの開始時期を早め、所定の汚物排出能
力を得るために必要な洗浄水量を少なくすることができ
る。As described above, according to the present invention, flush water is supplied between the outlet opening of the drain pipe extending from the toilet body and the inlet opening of the drain pipe connected to the outlet opening. The amount of washing water required to shorten the siphon start time and obtain the required waste discharge capacity can be shortened because the space that flows in or becomes an air pool can be significantly reduced or the space can be completely eliminated. Can be reduced.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明に係る排水構造を適用した便器の全体図FIG. 1 is an overall view of a toilet bowl to which a drainage structure according to the present invention is applied.

【図２】本発明に係る排水構造の排水管と排水管路との
接続部の拡大断面図FIG. 2 is an enlarged sectional view of a connecting portion between a drain pipe and a drain pipe of the drain structure according to the present invention.

【図３】別実施例に係る排水構造を示す図２と同様の図FIG. 3 is a view similar to FIG. 2, showing a drainage structure according to another embodiment.

【図４】図３に示す実施例のパッキンの拡大断面図FIG. 4 is an enlarged sectional view of the packing of the embodiment shown in FIG. 3;

【図５】排水管と排水管路との接続部の従来構造を示す
図FIG. 5 is a diagram showing a conventional structure of a connection part between a drain pipe and a drain pipe.

【符号の説明】[Explanation of symbols]

１…便器本体、２…袴部、３…排水管、４…排水管路、
５…上流側管路、６…連結管路、７…下流側管路、７ａ
…屈曲流路部、８…連続部、９…パッキン、１０…パッ
キンの外側部、１１…パッキンの内側部、１２…第１リ
ップ部、１３…第２リップ部、１４…管路部、１５…段
部、Ｄ1…上流側管路の内径、Ｄ2…排水管の出口開口部
の内径、Ｄ3…上流側管路の入口開口部の内径、Ｄ4…排
水管の出口開口部の外径。1 ... toilet body, 2 ... hakama part, 3 ... drain pipe, 4 ... drain pipe,
5 ... upstream pipe, 6 ... connection pipe, 7 ... downstream pipe, 7a
... Bending flow path part, 8 ... continuous part, 9 ... packing, 10 ... outer part of packing, 11 ... inner part of packing, 12 ... first lip part, 13 ... second lip part, 14 ... conduit part, 15 ... Step, D1 ... Inner diameter of upstream pipe, D2 ... Inner diameter of outlet opening of drain pipe, D3 ... Inner diameter of inlet opening of upstream pipe, D4 ... Outer diameter of outlet opening of drain pipe.

Claims (6)

【特許請求の範囲】[Claims] 【請求項１】 便器本体から延びる排水管と、この排水
管に接続する排水管路とを有する便器の排水構造におい
て、 前記排水管路は、前記排水管の出口開口部に接続され、
また前記出口開口部の外径より大径の入口開口部と、こ
の入口開口部の下流側に連続して形成される小径部とを
備え、 前記排水管路の入口開口部から小径部に至るまでの管路
形状は、洗浄水または空気が滞留する空間部を有しない
連続形状となっていることを特徴とする便器の排水構
造。1. A toilet drainage structure having a drainage pipe extending from a toilet body and a drainage pipe connected to the drainage pipe, wherein the drainage pipe is connected to an outlet opening of the drainage pipe,
An inlet opening having a diameter larger than the outer diameter of the outlet opening; and a small-diameter portion formed continuously downstream of the inlet opening. The drainage structure for a toilet bowl, wherein the pipe shape up to the end is a continuous shape having no space in which washing water or air stays. 【請求項２】 請求項１記載の便器の排水構造におい
て、 前記連続形状が段差及び局部的に凹凸のないテーパー形
状をなすことを特徴とする便器の排水構造。2. The toilet drainage structure according to claim 1, wherein the continuous shape has a tapered shape with no steps and no local unevenness. 【請求項３】 便器本体から延びる排水管と、この排水
管に接続する排水管路とを有する便器の排水構造におい
て、 前記排水管と排水管路との接続部にはパッキンが介在
し、このパッキンは前記排水管の出口開口部の外周面に
当接する第１リップ部と当該出口開口部に接続される排
水管路の入口開口部の内周面に当接する第２リップ部と
を備え、 第２リップ部は第１リップ部よりも下流側に位置してい
ることを特徴とする便器の排水構造。3. A drainage structure for a toilet having a drainage pipe extending from a toilet body and a drainage pipe connected to the drainage pipe, wherein a packing is interposed at a connection portion between the drainage pipe and the drainage pipe. The packing includes a first lip portion abutting on an outer peripheral surface of an outlet opening of the drain pipe, and a second lip portion abutting on an inner peripheral surface of an inlet opening of a drain pipe connected to the outlet opening. The drainage structure for a toilet bowl, wherein the second lip portion is located downstream of the first lip portion. 【請求項４】 便器本体から延びる排水管と、この排水
管に接続する排水管路とを有する便器の排水構造におい
て、 前記排水管と排水管路との接続部にはパッキンが介在
し、このパッキンは排水管と排水管路とを接続した際に
排水管と排水管路とをつなぐ管路部を備えていることを
特徴とする便器の排水構造。4. A drainage structure for a toilet having a drainage pipe extending from a toilet body and a drainage pipe connected to the drainage pipe, wherein a packing is interposed at a connection portion between the drainage pipe and the drainage pipe. A drain structure for a toilet bowl, characterized in that the packing includes a pipe section connecting the drain pipe and the drain pipe when the drain pipe is connected to the drain pipe. 【請求項５】 請求項４記載の便器の排水構造におい
て、 前記パッキンの管路部の上流側の内径は前記排水管の出
口開口部の内径に等しく、前記パッキンの管路部の下流
側の内径は前記排水管路の入口開口部の内径に等しいこ
とを特徴とする便器の排水構造。5. The drainage structure for a toilet according to claim 4, wherein an inner diameter of an upstream portion of the pipe portion of the packing is equal to an inner diameter of an outlet opening of the drainage pipe, and a downstream portion of the pipe portion of the packing. A drain structure for a toilet bowl, wherein an inner diameter is equal to an inner diameter of an inlet opening of the drain pipe. 【請求項６】 請求項４記載の便器の排水構造におい
て、 前記排水管の出口開口部の内径、前記パッキンの管路部
の内径及び前記排水管路の入口開口部の内径は全て等し
いことを特徴とする便器の排水構造。6. The drain structure for a toilet according to claim 4, wherein an inner diameter of an outlet opening of the drain pipe, an inner diameter of a pipe section of the packing, and an inner diameter of an inlet opening of the drain pipe are all equal. The characteristic drainage structure of the toilet.
JP13822298A 1998-05-20 1998-05-20 Drain structure of toilet stool Pending JPH11324081A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13822298A JPH11324081A (en) 1998-05-20 1998-05-20 Drain structure of toilet stool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13822298A JPH11324081A (en) 1998-05-20 1998-05-20 Drain structure of toilet stool

Publications (1)

Publication Number Publication Date
JPH11324081A true JPH11324081A (en) 1999-11-26

Family

ID=15216953

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13822298A Pending JPH11324081A (en) 1998-05-20 1998-05-20 Drain structure of toilet stool

Country Status (1)

Country Link
JP (1) JPH11324081A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008129957A1 (en) * 2007-04-18 2008-10-30 Inax Corporation Connection drain pipe
JP2008266945A (en) * 2007-04-18 2008-11-06 Inax Corp Drain connection pipe
JP2008266946A (en) * 2007-04-18 2008-11-06 Inax Corp Drain connection pipe
JP2020197004A (en) * 2019-05-31 2020-12-10 株式会社Ｌｉｘｉｌ Drain socket and bedpan with drain socket

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008129957A1 (en) * 2007-04-18 2008-10-30 Inax Corporation Connection drain pipe
JP2008266945A (en) * 2007-04-18 2008-11-06 Inax Corp Drain connection pipe
JP2008266946A (en) * 2007-04-18 2008-11-06 Inax Corp Drain connection pipe
JP2020197004A (en) * 2019-05-31 2020-12-10 株式会社Ｌｉｘｉｌ Drain socket and bedpan with drain socket

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