JP6873475B2

JP6873475B2 - Drain trap

Info

Publication number: JP6873475B2
Application number: JP2017138815A
Authority: JP
Inventors: 勝束田
Original assignee: ミヤコ株式会社
Priority date: 2017-07-18
Filing date: 2017-07-18
Publication date: 2021-05-19
Anticipated expiration: 2037-07-18
Also published as: JP2019019553A

Description

この発明は、設備機器の排水ホースと排水管との間に配設されて設備機器の排水を排水管に排出する排水トラップに関し、特に、排水管との接続状態（接続端面）を容易に視認（視覚を用いて確認）することのできる排水トラップに関する。 The present invention relates to a drain trap that is arranged between a drain hose of an equipment and a drain pipe and discharges the drain of the equipment to the drain pipe, and in particular, the connection state (connection end face) with the drain pipe can be easily visually recognized. Regarding drainage traps that can be confirmed (visually confirmed).

一般に、排水トラップは、洗濯機などの設備機器からの排水を床下に敷設された排水管に排出するために採用され、設備機器の排水ホースと接続可能なエルボ部材、エルボ部材および排水管にわたって接続可能な固定用筒体、固定用筒体に配置されて封水するトラップ本体を有し、排水管と接続されて床板に取り付けられている。そして、エルボ部材と設備機器の排水ホースとを接続することにより、設備機器からの排水をトラップ本体に導いて、臭気の逆流を防止しつつ排水管に排出する。 Drain traps are generally used to drain drainage from equipment such as washing machines into drains laid under the floor and connect across elbow members, elbow members and drains that can be connected to the equipment drain hose. It has a possible fixing cylinder and a trap body that is placed on the fixing cylinder to seal water, and is connected to a drain pipe and attached to a floor plate. Then, by connecting the elbow member and the drain hose of the equipment, the drainage from the equipment is guided to the trap body and discharged to the drain pipe while preventing the backflow of odor.

このような排水トラップであって、臭気の逆流防止を実現しつつ（気密性および水密性を維持しつつ）、排水トラップと排水管との接続状態を床上から視認に加えて容易に触認することのできる排水トラップを本出願人は出願しており、特開２０１７−０９５９３０号公報（特許文献１）に開示されている。
この特許文献１に開示された排水トラップは、設備機器の排水を床板の取付穴に立ち上げられた排水管に導いて排出する排水トラップであって、排水管と接続されて床板の取付穴周縁に固定された固定用筒体と、前記固定用筒体に支持されて封水を確保可能なトラップ本体と、前記固定用筒体に支持されて設備機器の排水ホースと接続可能なエルボ部材と、前記エルボ部材に装着されるとともに、前記固定用筒体にねじ結合されて前記エルボ部材を前記固定用筒体との間で挟み込むロック部材とから構成され、前記固定用筒体が、筒状部材と、前記筒状部材の外周に連結されたフランジ部とから構成され、前記筒状部材の外周面に接着剤を介して排水管の内周面が接着される一方、前記フランジ部が床板に固定され、前記フランジ部は、前記床板に固定される部分以外に開口部を備えることを特徴とする。 With such a drain trap, the connection state between the drain trap and the drain pipe can be easily palpated from above the floor while preventing the backflow of odor (while maintaining airtightness and watertightness). The applicant has applied for a drain trap that can be used, and is disclosed in Japanese Patent Application Laid-Open No. 2017-09930 (Patent Document 1).
The drain trap disclosed in Patent Document 1 is a drain trap that guides the drainage of equipment to a drain pipe raised in a mounting hole of a floor plate and discharges the trap, and is connected to the drain pipe to be connected to the peripheral edge of the mounting hole of the floor plate. A fixing cylinder fixed to, a trap body supported by the fixing cylinder to secure water sealing, and an elbow member supported by the fixing cylinder and connectable to a drain hose of equipment. The fixing cylinder is attached to the elbow member and is screwed to the fixing cylinder to sandwich the elbow member between the elbow member and the fixing cylinder. The fixing cylinder is tubular. It is composed of a member and a flange portion connected to the outer periphery of the tubular member, and the inner peripheral surface of the drain pipe is adhered to the outer peripheral surface of the tubular member via an adhesive, while the flange portion is a floor plate. The flange portion is provided with an opening other than the portion fixed to the floor plate.

この排水トラップについては、フランジ部に設けられた開口部としての点検口は、点検時において点検口を閉鎖している点検板を取り外してこの排水トラップと排水管との接続状態を視覚にて確認（視認）することができるとともに、指先を点検口から挿入してこの排水トラップと排水管との接続状態を触覚にて確認（触認）することができる。そして、点検時以外において、点検口を点検板により閉鎖することにより気密性および外観上の美観を維持することができる。 Regarding this drain trap, for the inspection port as an opening provided in the flange part, remove the inspection plate that closes the inspection port at the time of inspection and visually check the connection state between this drain trap and the drain pipe. In addition to being able to (visually) check (tactilely) the connection state between the drain trap and the drain pipe by inserting the fingertip through the inspection port. Then, the airtightness and the aesthetic appearance can be maintained by closing the inspection port with an inspection plate except at the time of inspection.

特開２０１７−０９５９３０号公報JP-A-2017-09930

ところで、このような排水トラップを含めて住宅の品質確保の観点から、住宅の品質確保の促進等に関する法律（平成１１年６月２３日法律第８１号、以下において品確法と記載する場合がある）により、住宅の性能に関する表示基準・評価制度を設け、住宅紛争の処理体制を整備し、新築住宅の請負契約・売買契約における瑕疵担保責任について特例を設けることにより、住宅の品質確保の促進・住宅購入者等の利益の保護・住宅紛争の迅速・適正な解決を図ることが求められている。このような品確法の下で、排水トラップについても、排水トラップと設備機器の排水を床板の取付穴に立ち上げられた排水管とを接続した後において、床上斜め上方から排水トラップと排水管との接続端面を目視にて確認できるように施工しなければならない可能性がある。 By the way, from the viewpoint of ensuring the quality of houses including such drainage traps, the Act on Promotion of Quality Assurance of Houses (Act No. 81 of June 23, 1999, may be referred to as the Quality Assurance Act below. ), Establishes a display standard / evaluation system for housing performance, establishes a housing dispute handling system, and establishes a special case for defect guaranty liability in contracts and sales contracts for new homes to promote the quality assurance of homes. It is required to protect the interests of home buyers and to resolve housing disputes promptly and appropriately. Under such a quality assurance method, even for drain traps, after connecting the drain trap and the drain pipe raised in the mounting hole of the floor plate, the drain trap and the drain pipe are connected from diagonally above the floor. It may be necessary to construct so that the connection end face of the can be visually confirmed.

しかしながら、たとえば、特許文献１の図１（Ｂ）の断面図に示されるように、フランジ部に設けられた点検口を開けても、床上斜め上方から排水トラップと排水管との接続端面（パイプＰの上端面）を目視にて確認できない場合がある。
本発明は、従来技術の前述の問題点に鑑みて開発されたものであり、その目的とするところは、排水トラップと排水管との接続端面を床上から視認することのできる排水トラップを提供することである。 However, for example, as shown in the cross-sectional view of FIG. 1 (B) of Patent Document 1, even if the inspection port provided in the flange portion is opened, the connection end face (pipe) between the drain trap and the drain pipe is formed from diagonally above the floor. The upper end surface of P) may not be visually confirmed.
The present invention has been developed in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a drain trap in which the connection end surface between the drain trap and the drain pipe can be visually recognized from above the floor. That is.

上記目的を達成するため、本発明に係る排水トラップは以下の技術的手段を講じている。
すなわち、本発明に係る排水トラップは、設備機器の排水を床板の取付穴に立ち上げられた排水管に導いて排出する排水トラップであって、排水管と接続されて床板の取付穴周縁に固定された固定用筒体と、前記固定用筒体に支持されて封水を確保可能なトラップ本体と、前記固定用筒体に支持されて設備機器の排水ホースと接続可能なエルボ部材と、前記エルボ部材に装着されるとともに、前記固定用筒体にねじ結合されて前記エルボ部材を前記固定用筒体との間で挟み込むロック部材とから構成され、前記固定用筒体が、筒状部材と、前記筒状部材の外周に設けられたフランジ部と、前記フランジ部から前記筒状部材へ縮径する部分に設けられたテーパ部とから構成され、前記筒状部材の外周面に接着剤を介して排水管の内周面が接着される一方、前記フランジ部が床板に固定されることを特徴とする。 In order to achieve the above object, the drain trap according to the present invention takes the following technical measures.
That is, the drain trap according to the present invention is a drain trap that guides the drainage of the equipment to the drain pipe raised in the mounting hole of the floor plate and discharges it, and is connected to the drain pipe and fixed to the peripheral edge of the mounting hole of the floor plate. The fixed cylinder, the trap body supported by the fixing cylinder to secure water sealing, the elbow member supported by the fixing cylinder and connectable to the drain hose of the equipment, and the above. It is attached to the elbow member and is composed of a lock member that is screwed to the fixing cylinder and sandwiches the elbow member with the fixing cylinder, and the fixing cylinder is formed of a tubular member. , A flange portion provided on the outer periphery of the tubular member and a tapered portion provided on a portion where the diameter is reduced from the flange portion to the tubular member, and an adhesive is applied to the outer peripheral surface of the tubular member. The inner peripheral surface of the drain pipe is adhered to the inner peripheral surface of the drain pipe, while the flange portion is fixed to the floor plate.

好ましくは、前記筒状部材の外径は前記排水管の内径と略等しく、前記テーパ部の縮径側外径は前記排水管の外径よりも小さいように構成することができる。
さらに好ましくは、前記筒状部材の外径は前記排水管の内径と略等しく、前記テーパ部の縮径側外径は前記排水管の外径と略等しいように構成することができる。
さらに好ましくは、前記固定用筒体において、前記フランジ部が前記筒状部材に着脱自在に連結されているように構成することができる。 Preferably, the outer diameter of the tubular member is substantially equal to the inner diameter of the drain pipe, and the outer diameter on the reduced diameter side of the tapered portion can be configured to be smaller than the outer diameter of the drain pipe.
More preferably, the outer diameter of the tubular member can be substantially equal to the inner diameter of the drain pipe, and the outer diameter on the reduced diameter side of the tapered portion can be configured to be substantially equal to the outer diameter of the drain pipe.
More preferably, the fixing cylinder can be configured such that the flange portion is detachably connected to the tubular member.

さらに好ましくは、前記フランジ部は、前記床板に固定される部分以外に開口部を備えるように構成することができる。 More preferably, the flange portion can be configured to include an opening other than the portion fixed to the floor plate.

本発明に係る排水トラップによると、排水トラップと排水管との接続端面を床上から視認することができる。 According to the drain trap according to the present invention, the connection end face between the drain trap and the drain pipe can be visually recognized from above the floor.

本発明の実施の形態に係る排水トラップ１００についての外観状態を示す図であって（Ａ）上面図、（Ｂ）排水管に接続して床板に固定した状態の断面図、（Ｃ）エルボ水平開口側から見た側面図である。It is a figure which shows the appearance state of the drain trap 100 which concerns on embodiment of this invention, (A) top view, (B) sectional view which was connected to the drain pipe and fixed to the floor board, (C) elbow horizontal. It is a side view seen from the opening side. 排水トラップ１００の分解斜視図である。It is an exploded perspective view of the drain trap 100. 排水トラップ１００の固定用筒体２および化粧カバー３を含む要部についての（Ａ）側面図、（Ｂ）側面拡大図である。It is (A) side view and (B) side view enlarged view about the main part including the fixing cylinder 2 and the decorative cover 3 of the drain trap 100. 図３の固定用筒体２を構成するフランジ部材２１についての（Ａ）上面図、（Ｂ）側面図である。It is (A) top view and (B) side view about the flange member 21 which constitutes the fixing cylinder 2 of FIG. 図３の固定用筒体２を構成する弾性部材２２についての（Ａ）上面図、（Ｂ）側面図、（Ｃ）側面拡大図である。It is (A) top view, (B) side view, (C) side side enlarged view about the elastic member 22 constituting the fixing cylinder 2 of FIG. 図３の固定用筒体２を構成する筒状部材２３についての（Ａ）上面図、（Ｂ）側面図、（Ｃ）側面拡大図である。It is (A) top view, (B) side view, (C) side side enlarged view about the tubular member 23 constituting the fixing cylinder 2 of FIG. 本発明に係る排水トラップ１００を排水管Ｐへ接続した施工状態を示す図であって（Ａ）正常な排水管Ｐとの接続状態を示す断面図、（Ｂ）約３度傾いて立ち上がってきた排水管Ｐとの接続状態を示す断面図、（Ｃ）床表面ＦＬよりも上方で切断された排水管Ｐとの接続状態を示す断面図、（Ｄ）床表面ＦＬよりも下方で切断された排水管Ｐとの接続状態を示す断面図である。It is a figure which shows the construction state which connected the drainage trap 100 which concerns on this invention to a drainage pipe P, (A) is the cross-sectional view which shows the connection state with a normal drainage pipe P, (B) has stood up tilted about 3 degrees. A cross-sectional view showing the connection state with the drain pipe P, (C) a cross-sectional view showing the connection state with the drain pipe P cut above the floor surface FL, and (D) cut below the floor surface FL. It is sectional drawing which shows the connection state with a drainage pipe P.

以下において、本発明の実施の形態に係る排水トラップ１００について、図１〜図６を参照してその構造を説明し、その後に図７を参照してその施工状態を説明する。
［排水トラップの概略構造］
排水トラップ１００についての外観状態を示す上面図を図１（Ａ）に、排水管Ｐに接続
して床板Ｆに固定した状態の断面図を図１（Ｂ）に、外観状態を示すエルボ部材５の水平開口側から見た側面図を図１（Ｃ）にそれぞれ示す。また、排水トラップ１００の分解斜視図を図２に示す。さらに、排水トラップ１００の固定用筒体２および化粧カバー３を含む要部を組み立てた状態についての側面図を図３（Ａ）に、その拡大図を図３（Ｂ）に示す。 Hereinafter, the structure of the drain trap 100 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 6, and then the construction state thereof will be described with reference to FIG. 7.
[Outline structure of drain trap]
A top view showing the appearance state of the drain trap 100 is shown in FIG. 1 (A), and a cross-sectional view showing a state of being connected to the drain pipe P and fixed to the floor plate F is shown in FIG. 1 (B). The side views seen from the horizontal opening side of the above are shown in FIG. 1 (C), respectively. Further, an exploded perspective view of the drain trap 100 is shown in FIG. Further, a side view of the assembled state of the main part including the fixing cylinder 2 and the decorative cover 3 of the drain trap 100 is shown in FIG. 3 (A), and an enlarged view thereof is shown in FIG. 3 (B).

図４〜図６は、固定用筒体２を構成する、フランジ部材２１（図４）、弾性部材２２（図５）および筒状部材２３（図６）についての部品図である。フランジ部材２１についての上面図を図４（Ａ）にその側面図を図４（Ｂ）に、弾性部材２２についての上面図を図５（Ａ）にその側面図を図５（Ｂ）にその側面拡大図を図５（Ｃ）に、筒状部材２３についての上面図を図６（Ａ）にその側面図を図６（Ｂ）にその側面拡大図を図６（Ｃ）にそれぞれ示す。 4 to 6 are component views of the flange member 21 (FIG. 4), the elastic member 22 (FIG. 5), and the tubular member 23 (FIG. 6) constituting the fixing tubular body 2. The top view of the flange member 21 is shown in FIG. 4 (A), the side view thereof is shown in FIG. 4 (B), the top view of the elastic member 22 is shown in FIG. 5 (A), and the side view thereof is shown in FIG. 5 (B). An enlarged side view is shown in FIG. 5 (C), a top view of the tubular member 23 is shown in FIG. 6 (A), a side view thereof is shown in FIG. 6 (B), and an enlarged side view thereof is shown in FIG. 6 (C).

なお、以下においては、この排水トラップ１００は、これらの図１〜図６に示すように、設備機器の排水を床板Ｆの取付穴ＦＡに立ち上げられた排水管Ｐに導いて排出する排水トラップであって、排水管Ｐと接続されて床板Ｆの取付穴ＦＡ周縁に固定された固定用筒体２と、固定用筒体２に支持されて封水を確保可能なトラップ本体４と、固定用筒体２に支持されて設備機器の排水ホースと接続可能なエルボ部材５と、エルボ部材５に装着されるとともに、固定用筒体２にねじ結合されてエルボ部材５を固定用筒体２との間で挟み込むロック部材６とから構成され、固定用筒体２の筒状部材２３（の外周面）に接着剤を介して排水管Ｐ（の内周面）が接着される一方、固定用筒体２のフランジ部材２１が床板Ｆに固定される。 In the following, as shown in FIGS. 1 to 6, the drain trap 100 guides the drainage of the equipment to the drainage pipe P raised in the mounting hole FA of the floor plate F and discharges the drainage trap. The fixing cylinder 2 which is connected to the drain pipe P and fixed to the peripheral edge of the mounting hole FA of the floor plate F, and the trap body 4 which is supported by the fixing cylinder 2 and can secure water sealing, are fixed. An elbow member 5 that is supported by the cylinder 2 and can be connected to a drain hose of equipment, and is attached to the elbow member 5, and is screwed to the fixing cylinder 2 to fix the elbow member 5 to the fixing cylinder 2. It is composed of a lock member 6 sandwiched between the two, and the drain pipe P (inner peripheral surface) is fixed to the tubular member 23 (outer peripheral surface) of the fixing cylinder 2 via an adhesive. The flange member 21 of the cylinder body 2 is fixed to the floor plate F.

そして、この排水トラップ１００の特徴的な構造は、
（Ａ）固定用筒体２が、筒状部材２３と、筒状部材２３の外周に設けられたフランジ部材２１と、フランジ部材２１から筒状部材２３へ縮径する部分に設けられたテーパ部２３Ｃとから構成されている点、
（Ｂ）固定用筒体２が、筒状部材２３と、筒状部材２３の外周に筒状部材２３に着脱自在に設けられた円環形状のフランジ部材２１と、筒状部材２３とフランジ部材２１との間に設けられる弾性部材２２とから構成されている点、
である。 And the characteristic structure of this drain trap 100 is
(A) The fixing tubular body 2 has a tubular member 23, a flange member 21 provided on the outer circumference of the tubular member 23, and a tapered portion provided at a portion where the diameter of the flange member 21 is reduced to the tubular member 23. The point that it is composed of 23C,
(B) The fixing tubular body 2 includes a tubular member 23, a ring-shaped flange member 21 detachably provided on the tubular member 23 on the outer circumference of the tubular member 23, and the tubular member 23 and the flange member. A point composed of an elastic member 22 provided between the 21 and the
Is.

なお、本発明に係る排水トラップにおいては、（Ａ）および（Ｂ）の少なくともいずれか１つを備えればよいが、本実施の形態に係る排水トラップ１００は（Ａ）および（Ｂ）を備えるものとして以下において詳しく説明する。ここで、（Ｂ）を少なくとも備える場合にはフランジ部材２１は筒状部材２３に着脱自在に設けられる必要があるが、（Ａ）を備えるが（Ｂ）を備えない場合にはこのようにフランジ部材２１が筒状部材２３に着脱自在に設けられる必要はなくフランジ部材２１は筒状部材２３と一体型であっても分離型であっても構わない。本実施の形態に係る排水トラップ１００は、前述したように（Ａ）および（Ｂ）を備えるために、フランジ部材２１は筒状部材２３と分離型であることになる。 The drain trap according to the present invention may be provided with at least one of (A) and (B), but the drain trap 100 according to the present embodiment includes (A) and (B). This will be described in detail below. Here, when (B) is provided at least, the flange member 21 needs to be detachably provided on the tubular member 23, but when (A) is provided but (B) is not provided, the flange is thus provided. The member 21 does not have to be detachably provided on the tubular member 23, and the flange member 21 may be an integral type or a separate type with the tubular member 23. Since the drain trap 100 according to the present embodiment includes (A) and (B) as described above, the flange member 21 is a separate type from the tubular member 23.

図１〜図６を参照して、本実施の形態に係る排水トラップ１００の構造について詳しく説明する。
この排水トラップ１００は、大略的には、排水管Ｐと接続されるとともに、床板Ｆに形成された取付穴ＦＡの周縁に固定される固定用筒体２と、固定用筒体２に装着された化粧カバー３と、固定用筒体２に支持されたトラップ本体４と、トラップ本体４に嵌挿されて固定用筒体２に支持されたエルボ部材５と、エルボ部材５に装着されて固定用筒体２とねじ結合されたロック部材６と、から構成されている。 The structure of the drain trap 100 according to the present embodiment will be described in detail with reference to FIGS. 1 to 6.
The drain trap 100 is roughly connected to the drain pipe P and attached to the fixing cylinder 2 fixed to the peripheral edge of the mounting hole FA formed in the floor plate F and the fixing cylinder 2. The decorative cover 3, the trap body 4 supported by the fixing cylinder 2, the elbow member 5 fitted into the trap body 4 and supported by the fixing cylinder 2, and the elbow member 5 attached and fixed. It is composed of a lock member 6 screwed to the cylinder body 2.

固定用筒体２は、筒状部材２３（上筒部２３Ａ、下筒部２３Ｂおよびテーパ部２３Ｃ）、フランジ部材２１ならびに弾性部材２２から構成されている。フランジ部材２１は、筒状部材２３に対して、前述したように着脱自在に連結されていても（本出願人の出願に係る特開２００８−２６１１８３号公報に記載の態様）、固着されて連結されていても（本出願人による出願に係る特開２００７−０２３６８８号公報に記載の態様）構わない。ここでは、本実施の形態に係る排水トラップ１００は（Ａ）および（Ｂ）を備えるために、
フランジ部材２１は筒状部材２３と分離型であって、フランジ部材２１が筒状部材２３に対して着脱自在に連結されているものとして説明する。 The fixing cylinder 2 is composed of a tubular member 23 (upper cylinder portion 23A, lower cylinder portion 23B and taper portion 23C), a flange member 21, and an elastic member 22. Even if the flange member 21 is detachably connected to the tubular member 23 as described above (the aspect described in Japanese Patent Application Laid-Open No. 2008-261183 according to the application of the present applicant), the flange member 21 is fixed and connected. (Aspects described in Japanese Patent Application Laid-Open No. 2007-023688 relating to the application by the present applicant) may be used. Here, in order to provide (A) and (B), the drain trap 100 according to the present embodiment is provided.
The flange member 21 will be described as being a separate type from the tubular member 23, and the flange member 21 is detachably connected to the tubular member 23.

なお、筒状部材２３がフランジ部材２１に対して着脱自在に連結されていると、床材の張り替えに際して筒状部材２３に対するフランジ部材２１の連結を解除してフランジ部材２１を離脱させることができるので、床板Ｆの取付穴ＦＡの周縁に固定用筒体２の筒状部材２３が支持されることから、固定用筒体２の筒状部材２３を挿通可能な最小限の穴を形成して床材の張り替えることができる。このため、床材の張り替えに際して、煩雑な作業と多くの作業時間が必要になるという問題を解決することができる点で好ましい。 If the tubular member 23 is detachably connected to the flange member 21, the flange member 21 can be disengaged by releasing the connection of the flange member 21 to the tubular member 23 when the floor material is replaced. Therefore, since the tubular member 23 of the fixing cylinder 2 is supported on the peripheral edge of the mounting hole FA of the floor plate F, a minimum hole through which the tubular member 23 of the fixing cylinder 2 can be inserted is formed. The floor material can be replaced. Therefore, it is preferable in that it is possible to solve the problems that complicated work and a large amount of work time are required when replacing the floor material.

ここで、固定用筒体２は、無色透明、有色透明または有色不透明である樹脂、たとえば、ＡＢＳ樹脂によって形成されている。このようにＡＢＳ樹脂を採用することにより透明で形成したとしても強度低下を抑えることができる。なお、後述するように、本実施の形態に係る排水トラップ１００において、本出願人による出願に係る特開２０１７−０９５９３０号公報に記載のようにフランジ部２１に点検口を備えるようにしなくても、固定用筒体２（特に固定用筒体２を構成するフランジ部材２１）を透明（無色透明または有色透明）に形成するとこの排水トラップ１００と排水管Ｐとの接続端面を視認点検できる点で好ましい。 Here, the fixing cylinder 2 is formed of a resin that is colorless and transparent, colored transparent, or colored opaque, for example, ABS resin. By adopting the ABS resin in this way, it is possible to suppress a decrease in strength even if it is formed transparently. As will be described later, in the drain trap 100 according to the present embodiment, the flange portion 21 does not have to be provided with an inspection port as described in Japanese Patent Application Laid-Open No. 2017-09930 according to the application by the present applicant. When the fixing cylinder 2 (particularly the flange member 21 constituting the fixing cylinder 2) is formed transparent (colorless and transparent or colored transparent), the connection end surface between the drain trap 100 and the drain pipe P can be visually inspected. preferable.

固定用筒体２は、筒状部材２３と、円環形状を備えたフランジ部材２１と、筒状部材２３の外周とフランジ部材２１の内周との間に挟持されるとともに円環形状を備えた弾性部材２２とで構成される。これらの詳細については後述する。
化粧カバー３は、固定用筒体２に装着可能であって、固定用筒体２に装着することにより、フランジ部材２１の上面を覆って、固定用筒体２およびビスＳを目隠しして上方から見た排水トラップ１００の外観を化粧することができる。 The fixing cylinder 2 is sandwiched between the tubular member 23, the flange member 21 having an annular shape, the outer circumference of the tubular member 23 and the inner circumference of the flange member 21, and has an annular shape. It is composed of an elastic member 22. Details of these will be described later.
The decorative cover 3 can be attached to the fixing cylinder 2, and by attaching to the fixing cylinder 2, the upper surface of the flange member 21 is covered, and the fixing cylinder 2 and the screw S are blindfolded upward. The appearance of the drain trap 100 as seen from the front can be made up.

トラップ本体４は、固定用筒体２における筒状部材２３の下筒部２３Ｂまたはテーパ部２３Ｃの内周面に嵌合可能な外径のわん体４１と、わん体４１の内部に配設された傾斜部４２１および垂直部４２２からなる仕切り壁４２と、から形成されている。そして、仕切り壁４２の垂直部４２２によってわん体４１の内部が横断面半円状に二分割される一方、仕切り壁４２の垂直部４２２の下端縁とわん体４１の底面との間には、流通路４Ａが形成されている。また、仕切り壁４２の傾斜部４２１の裏面側において、わん体４１の上部には、略半周にわたる流出口４Ｂが形成されている。このため、後述するように、設備機器からの排水は、仕切り壁４２の傾斜部４２１に沿ってわん体４１の横断面半円状の一方の空間に流れるとともに、流通路４Ａを経てわん体４１の横断面半円状の他方の空間に達し、流出口４Ｂから溢水する。この際、トラップ本体４のわん体４１の内部において、その底面から流出口４Ｂに達する高さの封水を確保することができる。 The trap body 4 is arranged inside the bowl 41 and a bowl 41 having an outer diameter that can be fitted to the inner peripheral surface of the lower cylinder portion 23B or the tapered portion 23C of the tubular member 23 in the fixing cylinder 2. It is formed of a partition wall 42 including an inclined portion 421 and a vertical portion 422. Then, the inside of the bowl 41 is divided into two in a semicircular cross section by the vertical portion 422 of the partition wall 42, while the lower end edge of the vertical portion 422 of the partition wall 42 and the bottom surface of the bowl 41 are separated from each other. A flow passage 4A is formed. Further, on the back surface side of the inclined portion 421 of the partition wall 42, an outflow port 4B extending substantially half a circumference is formed on the upper portion of the housing 41. Therefore, as will be described later, the drainage from the equipment flows into one space having a semicircular cross section of the bowl 41 along the inclined portion 421 of the partition wall 42, and the drainage 41 passes through the flow passage 4A. It reaches the other space having a semicircular cross section and overflows from the outlet 4B. At this time, it is possible to secure a water seal having a height reaching the outlet 4B from the bottom surface of the trap body 41 inside the trap body 41.

なお、トラップ本体４のわん体４１の上部外周面には、固定用筒体２における筒状部材２３の下筒部２３Ｂまたはテーパ部２３Ｃの内径に対応する外径の周縁段差部４１１が突出して形成されており、前述した固定用筒体２における筒状部材２３の支持部２３Ｕに支持することができる。
エルボ部材５は、ゴムなどから形成されたエルボ状の管状体であって、その一端部に排水ホース（図示せず）が接続可能であり、その他端部に、前述したトラップ本体４におけるわん体４１の周縁段差部４１１の内周面に嵌合可能な外周面が形成されるとともに、固定用筒体２における筒状部材２３の上筒部２３Ａの内周側上面に支持可能な突出部５１が形成されている。 On the upper outer peripheral surface of the bowl 41 of the trap body 4, a peripheral step portion 411 having an outer diameter corresponding to the inner diameter of the lower tubular portion 23B or the tapered portion 23C of the tubular member 23 in the fixing tubular body 2 protrudes. It is formed and can be supported by the support portion 23U of the tubular member 23 in the fixing cylinder 2 described above.
The elbow member 5 is an elbow-shaped tubular body formed of rubber or the like, to which a drain hose (not shown) can be connected to one end thereof, and to the other end of the bowl in the trap body 4 described above. An outer peripheral surface that can be fitted to the inner peripheral surface of the peripheral step portion 411 of 41 is formed, and a protruding portion 51 that can be supported on the inner peripheral upper surface of the upper tubular portion 23A of the tubular member 23 in the fixing tubular body 2. Is formed.

ロック部材６は、前述した固定用筒体２における筒状部材２３の上筒部２３Ａの雌ねじ２３Ｍに螺合可能な雄ねじ６Ｍを有し、エルボ部材５にその他端部側から装着されるようになっている。
［排水トラップの詳細構造：固定用筒体］
このような概略的な構造を備えた本実施の形態に係る排水トラップ１００において特徴的な構造を形成する固定用筒体２について以下に詳しく説明する。 The lock member 6 has a male screw 6M that can be screwed into the female screw 23M of the upper cylinder portion 23A of the tubular member 23 in the fixing cylinder 2 described above, and is attached to the elbow member 5 from the other end side. It has become.
[Detailed structure of drain trap: Fixing cylinder]
The fixing cylinder 2 forming a characteristic structure in the drain trap 100 according to the present embodiment having such a schematic structure will be described in detail below.

前述のように、固定用筒体２は、筒状部材２３と、円環形状を備えたフランジ部材２１と、筒状部材２３の外周とフランジ部材２１の内周との間に挟持されるとともに円環形状
を備えた弾性部材２２とで構成される。
図１〜図３および図４に示すように、大略的には、フランジ部材２１は、円環部分２１Ｂに筒部２１Ｃが立ち上がった形状を備える。円環部分２１Ｂには、その周方向に予め定められた間隔（ここでは１２０度間隔）をおいて複数個（ここでは３個）のビス穴２１Ａが形成されており、ビス穴２１Ａを通してビスＳを床板Ｆにねじ込むことによってフランジ部材２１および固定用筒体２を介して床板Ｆに排水トラップ１００を固定することができる。また、フランジ部材２１の筒部２１Ｃの内周面２１Ｄには弾性部材２２の円環部２２Ａの外周面２２Ｄが当接する。さらに、フランジ部材２１の円環部分２１Ｂには、その周方向に予め定められた間隔（ここではビス穴２１Ａとは異なる位置になる１２０度間隔）をおいて複数個（ここでは３個）の切り欠き部２１Ｆを備えており、この切り欠き部２１Ｆを用いることにより、固定用筒体２からフランジ部材２１を好適に分離することができる。 As described above, the fixing cylinder 2 is sandwiched between the tubular member 23, the flange member 21 having an annular shape, the outer circumference of the tubular member 23, and the inner circumference of the flange member 21. It is composed of an elastic member 22 having an annular shape.
As shown in FIGS. 1 to 3 and 4, roughly, the flange member 21 has a shape in which the tubular portion 21C stands up on the annular portion 21B. A plurality of (three here) screw holes 21A are formed in the annular portion 21B at predetermined intervals (here, 120 degree intervals) in the circumferential direction, and the screws S are formed through the screw holes 21A. The drain trap 100 can be fixed to the floor plate F via the flange member 21 and the fixing cylinder 2 by screwing the drain trap 100 into the floor plate F. Further, the outer peripheral surface 22D of the annular portion 22A of the elastic member 22 comes into contact with the inner peripheral surface 21D of the tubular portion 21C of the flange member 21. Further, the annular portion 21B of the flange member 21 is provided with a plurality of (three in this case) intervals (here, 120 degree intervals that are different from the screw holes 21A) in the circumferential direction. A notch portion 21F is provided, and by using this notch portion 21F, the flange member 21 can be suitably separated from the fixing cylinder 2.

図１〜図３および図５に示すように、大略的には、弾性部材２２は、ゴム等のエラストマー素材から構成される略円環形状を備える。弾性部材２２の円環部２２Ａの外周面２２Ｄにはフランジ部材２１の筒部２１Ｃの内周面２１Ｄが当接するとともに、弾性部材２２の円環部２２Ａの内周面２２Ｆに設けられた脱落防止部２２Ｃには筒状部材２３の上筒部２３Ａの外周面２３Ｆが当接することにより、筒状部材２３の外周とフランジ部材２１の内周との間に弾性部材２２が挟持される。なお、弾性部材２２の種類および硬度は、筒状部材２３の外周とフランジ部材２１の内周との間に好適に挟持することができるように適宜設定される。この脱落防止部２２Ｃは、後述するように、弾性部材２２が固定用筒体２から脱落することを防止するとともに、排水管Ｐが傾いて立ち上がって施工されている場合に弾性部材２２を弾性変形させてフランジ部材２１を床上面ＦＬに対して水平にするときの可動域を広げることができる。 As shown in FIGS. 1 to 3 and 5, roughly, the elastic member 22 has a substantially annular shape made of an elastomer material such as rubber. The inner peripheral surface 21D of the tubular portion 21C of the flange member 21 comes into contact with the outer peripheral surface 22D of the annular portion 22A of the elastic member 22, and the fall prevention provided on the inner peripheral surface 22F of the annular portion 22A of the elastic member 22. The elastic member 22 is sandwiched between the outer circumference of the tubular member 23 and the inner circumference of the flange member 21 by abutting the outer peripheral surface 23F of the upper tubular portion 23A of the tubular member 23 against the portion 22C. The type and hardness of the elastic member 22 are appropriately set so that they can be suitably sandwiched between the outer circumference of the tubular member 23 and the inner circumference of the flange member 21. As will be described later, the dropout prevention portion 22C prevents the elastic member 22 from falling off from the fixing cylinder 2, and elastically deforms the elastic member 22 when the drainage pipe P is tilted and stands up. The movable range when the flange member 21 is made horizontal with respect to the floor upper surface FL can be widened.

図１〜図３および図６に示すように、大略的には、筒状部材２３は、上筒部２３Ａと、その上筒部よりも径の小さい下筒部２３Ｂと、上筒部２３Ａと下筒部２３Ｂとの間に設けられたテーパ部２３Ｃとを備える。筒状部材２３の上筒部２３Ａの外周面２３Ｆに弾性部材２２の円環部２２Ａの内周面２２Ｆに設けられた脱落防止部２２Ｃが当接する。
このようにして、筒状部材２３の外周とフランジ部材２１の内周との間に弾性部材２２が挟持されて一体化された固定用筒体２についてさらに詳しく説明する。なお、フランジ部材２１が筒状部材２３に対して着脱自在に連結されている分離型ではなく一体型の場合には、この弾性部材２２の存在に関係なく（弾性部材２２が存在する場合には透明であって後述する接続端面ＴＭ（排水管Ｐの上端面ＴＭ）を床上から視認できることが必須）、フランジ部材２１と筒状部材２３とがテーパ部２３Ｃを備えて一体化されている。 As shown in FIGS. 1 to 3 and 6, roughly, the tubular member 23 includes an upper cylinder portion 23A, a lower cylinder portion 23B having a diameter smaller than that of the upper cylinder portion, and an upper cylinder portion 23A. It is provided with a tapered portion 23C provided between the lower cylinder portion 23B and the lower cylinder portion 23B. The fall-out prevention portion 22C provided on the inner peripheral surface 22F of the annular portion 22A of the elastic member 22 comes into contact with the outer peripheral surface 23F of the upper tubular portion 23A of the tubular member 23.
In this way, the fixing tubular body 2 in which the elastic member 22 is sandwiched and integrated between the outer circumference of the tubular member 23 and the inner circumference of the flange member 21 will be described in more detail. When the flange member 21 is an integral type rather than a separate type which is detachably connected to the tubular member 23, regardless of the presence of the elastic member 22 (when the elastic member 22 is present). It is transparent and it is essential that the connection end surface TM (the upper end surface TM of the drain pipe P) described later can be visually recognized from above the floor), and the flange member 21 and the tubular member 23 are integrated with the tapered portion 23C.

次に前述したこの排水トラップ１００の特徴的な構造（Ａ）および（Ｂ）について説明する。
まず、（Ａ）固定用筒体２が、筒状部材２３と、筒状部材２３の外周に設けられたフランジ部材２１と、フランジ部材２１から筒状部材２３へ縮径する部分に設けられたテーパ部２３Ｃとから構成されている点、について説明する。 Next, the characteristic structures (A) and (B) of the drain trap 100 described above will be described.
First, (A) the fixing cylinder 2 is provided at the tubular member 23, the flange member 21 provided on the outer periphery of the tubular member 23, and the portion where the diameter of the flange member 21 is reduced to the tubular member 23. A point including the tapered portion 23C will be described.

より詳しくは、筒状部材２３の（より詳しくは下筒部２３Ｂの）外径φＤ（Ｔ）は、排水管Ｐの内径φＤ（ＰＳ）と略等しく、テーパ部２３Ｃの縮径側外径φＤ（ＴＳ）は、排水管Ｐの外径φＤ（ＰＬ）よりも小さいか排水管Ｐの外径φＤ（ＰＬ）と略等しい。ここで、テーパ部２３Ｃは、フランジ部材２１から筒状部材２３へ縮径する部分であって、より詳しくは、テーパ部２３Ｃは、筒状部材２３における上筒部２３Ａの外径（拡径側外径φＤ（ＴＬ））から下筒部２３Ｂの外径（拡径側外径φＤ（ＴＳ））へ外径が小さくなる部分である。なお、図示したように、排水管Ｐの内周面に排水トラップ１００（の固定用筒体２における筒状部材２３の下筒部２３Ｂ）の外周面を挿入するためには、φＤ（Ｔ）はφＤ（ＰＳ）よりも少なくとも小さいことが必要であるものの、水密性を確保するためにはφＤ（Ｔ）とφＤ（ＰＳ）との差は少ないことが好ましいので、φＤ（Ｔ）とφＤ（ＰＳ）とは略等しいことが好ましい。 More specifically, the outer diameter φD (T) of the tubular member 23 (more specifically, the lower cylinder portion 23B) is substantially equal to the inner diameter φD (PS) of the drain pipe P, and the outer diameter φD on the reduced diameter side of the tapered portion 23C. (TS) is smaller than the outer diameter φD (PL) of the drain pipe P or substantially equal to the outer diameter φD (PL) of the drain pipe P. Here, the tapered portion 23C is a portion that reduces the diameter from the flange member 21 to the tubular member 23. More specifically, the tapered portion 23C is the outer diameter (diameter expansion side) of the upper tubular portion 23A of the tubular member 23. This is a portion where the outer diameter decreases from the outer diameter φD (TL)) to the outer diameter of the lower cylinder portion 23B (diameter-expanded side outer diameter φD (TS)). As shown in the figure, φD (T) is used to insert the outer peripheral surface of the drain trap 100 (the lower cylinder portion 23B of the tubular member 23 in the fixing cylinder 2) into the inner peripheral surface of the drain pipe P. Is required to be at least smaller than φD (PS), but it is preferable that the difference between φD (T) and φD (PS) is small in order to ensure watertightness. It is preferable that it is substantially equal to PS).

このような構成であると、図１（Ｂ）および図３（Ｂ）に示すように、排水管Ｐとの接
続部となる筒状部材２３の下筒部２３Ｂの上方にはテーパ部２３Ｃを備えるために排水トラップ１００と排水管Ｐとの接続端面ＴＭ（排水管Ｐの上端面ＴＭ）を床上から視認することができる。ここでは視認の方向を白抜き矢示で示している。なお、ここで、図６（Ｃ）に示すテーパ角αは、限定されるものではないが、排水トラップ１００と排水管Ｐとの接続端面ＴＭ（排水管Ｐの上端面ＴＭ）を床上から良好に視認することができるためには４５〜６５度程度が好ましい。 With such a configuration, as shown in FIGS. 1 (B) and 3 (B), a tapered portion 23C is provided above the lower tubular portion 23B of the tubular member 23 which is a connecting portion with the drain pipe P. The connection end surface TM (upper end surface TM of the drainage pipe P) between the drainage trap 100 and the drainage pipe P can be visually recognized from above the floor. Here, the direction of visual recognition is indicated by a white arrow. Here, the taper angle α shown in FIG. 6C is not limited, but the connection end surface TM between the drain trap 100 and the drain pipe P (the upper end surface TM of the drain pipe P) is good from above the floor. It is preferably about 45 to 65 degrees so that it can be visually recognized.

この場合において、このように床上から排水トラップ１００と排水管Ｐとの接続端面ＴＭ（排水管Ｐの上端面ＴＭ）を視認するにあたっては、フランジ部材２１は、床板に固定される部分以外に開口部を備えることが好ましい。
このような開口部としては、本出願人による出願に係る特開２０１７−０９５９３０号公報に記載された、フランジ部材２１に設けられた開口部としての点検口が一例として挙げられる。フランジ部材２１に設けられた点検口を図２に点線で示す。この点検口を通して、この排水トラップ１００と排水管Ｐとの接続端面ＴＭを視覚にて確認（視認）することができるとともに、指先を点検口から挿入してこの排水トラップ１００と排水管Ｐとの接続状態を触覚にて確認（触認）することができる。 In this case, when visually recognizing the connection end surface TM of the drain trap 100 and the drain pipe P (the upper end surface TM of the drain pipe P) from above the floor, the flange member 21 opens in a portion other than the portion fixed to the floor plate. It is preferable to provide a portion.
As an example of such an opening, an inspection port as an opening provided in the flange member 21 described in Japanese Patent Application Laid-Open No. 2017-095930 according to the application by the present applicant can be mentioned. The inspection port provided on the flange member 21 is shown by a dotted line in FIG. Through this inspection port, the connection end surface TM between the drain trap 100 and the drain pipe P can be visually confirmed (visually), and a fingertip is inserted from the inspection port to connect the drain trap 100 and the drain pipe P. The connection status can be confirmed (tactilely) by touch.

次に、（Ｂ）固定用筒体２が、筒状部材２３と、筒状部材２３の外周に筒状部材２３に着脱自在に設けられた円環形状のフランジ部材２１と、筒状部材２３とフランジ部材２１との間に設けられる弾性部材２２とから構成されている点、について説明する。
より詳しくは、この弾性部材２２は、前述したように、円環形状を備え、筒状部材２３の外周とフランジ部材２１の内周との間に挟持されているとともに、筒状部材２３、フランジ部材２１および弾性部材２２の少なくとも１つは、弾性部材２２が固定用筒体２から脱落することを防止する脱落防止部を備える。本実施の形態においては、このような脱落防止部の一例として、弾性部材２２に脱落防止部２２Ｃが設けられている。 Next, (B) the fixing tubular body 2 includes a tubular member 23, an annular flange member 21 detachably provided on the tubular member 23 on the outer circumference of the tubular member 23, and the tubular member 23. A point composed of an elastic member 22 provided between the flange member 21 and the flange member 21 will be described.
More specifically, as described above, the elastic member 22 has an annular shape and is sandwiched between the outer circumference of the tubular member 23 and the inner circumference of the flange member 21, as well as the tubular member 23 and the flange. At least one of the member 21 and the elastic member 22 is provided with a dropout prevention portion that prevents the elastic member 22 from falling off from the fixing cylinder 2. In the present embodiment, as an example of such a fall prevention part, the elastic member 22 is provided with the fall prevention part 22C.

さらに詳しくは、限定されるものではないが、この脱落防止部２２Ｃは、弾性部材２２の内周面２２Ｆに設けられた、弾性部材の円環内径が異なる複数（ここでは５つ）の段である。より詳しくは図５（Ｃ）に示すように、脱落防止部２２Ｃは、弾性部材２２の内周面２２Ｆの上方に設けられた、全円周に沿って内径方向への張り出した段である。
このように脱落防止部２２Ｃを構成することにより、図３（Ｂ）に示すように、弾性部材２２の円環部２２Ａの外周面２２Ｄにフランジ部材２１の筒部２１Ｃの内周面２１Ｄが当接するとともに弾性部材２２の円環部２２Ａの内周面２２Ｆには筒状部材２３の上筒部２３Ａの外周面２３Ｆが当接することにより弾性部材２２が筒状部材２３の外周とフランジ部材２１の内周との間に単に挟持されるだけでなく、弾性部材２２の内周面２２Ｆ側は脱落防止部２２Ｃに筒状部材２３の上筒部２３Ａの外周面２３Ｆが当接する。 More specifically, although not limited to, the fall-out prevention portion 22C is provided on the inner peripheral surface 22F of the elastic member 22 by a plurality of (here, five) stages having different inner diameters of the ring of the elastic member. is there. More specifically, as shown in FIG. 5C, the dropout prevention portion 22C is a step provided above the inner peripheral surface 22F of the elastic member 22 and projecting in the inner diameter direction along the entire circumference.
By configuring the fall-off prevention portion 22C in this way, as shown in FIG. 3B, the inner peripheral surface 21D of the tubular portion 21C of the flange member 21 is in contact with the outer peripheral surface 22D of the annular portion 22A of the elastic member 22. The elastic member 22 comes into contact with the inner peripheral surface 22F of the annular portion 22A of the elastic member 22 and the outer peripheral surface 23F of the upper tubular portion 23A of the tubular member 23 abuts on the outer peripheral surface of the tubular member 23 and the flange member 21. Not only is it sandwiched between the inner circumference and the inner circumference, but the outer peripheral surface 23F of the upper tubular portion 23A of the tubular member 23 comes into contact with the dropout prevention portion 22C on the inner peripheral surface 22F side of the elastic member 22.

この脱落防止部２２Ｃにおいては、その出っ張った内径φＤ（Ｓ）を筒状部材２３の上筒部２３Ａの外周面２３Ｆの外径φＤ（ＴＬ）よりもわずかに小さく設計している。このため、筒状部材２３の上筒部２３Ａの外周面２３Ｆに弾性部材２２の内周面２２Ｆを嵌合させると、脱落防止部２２Ｃの内径φＤ（Ｓ）がφＤ（ＴＬ）まで変形して圧縮されて弾性変形して元に戻る弾性力が発生する。この弾性力により、弾性部材２２の内周面２２Ｆと筒状部材２３の上筒部２３Ａの外周面２３Ｆとが強く当接されて、弾性部材２２が固定用筒体２（ここでは筒状部材２３）から脱落することを防止することができる。 The protruding inner diameter φD (S) of the dropout prevention portion 22C is designed to be slightly smaller than the outer diameter φD (TL) of the outer peripheral surface 23F of the upper tubular portion 23A of the tubular member 23. Therefore, when the inner peripheral surface 22F of the elastic member 22 is fitted to the outer peripheral surface 23F of the upper tubular portion 23A of the tubular member 23, the inner diameter φD (S) of the dropout prevention portion 22C is deformed to φD (TL). An elastic force that is compressed, elastically deformed, and returns to its original state is generated. Due to this elastic force, the inner peripheral surface 22F of the elastic member 22 and the outer peripheral surface 23F of the upper tubular portion 23A of the tubular member 23 are strongly brought into contact with each other, and the elastic member 22 is brought into contact with the fixing tubular body 2 (here, the tubular member). It is possible to prevent it from falling out from 23).

ここで、この説明およびこの説明に関する図においては、脱落防止部２２Ｃのわずかな弾性変形量およびわずかなテーパ角βを考慮していない（以下において同じ）。テーパ角βは、弾性部材２２を筒状部材２３に上方から被せやすくするとともに、弾性部材２２にフランジ部材２１に上方から被せやすくするために設けられている。さらに、この部分を含めて図４〜図６に示したテーパ角βは、このような上方からの被せやすさに加えて、筒状部材２３がエルボ部材５側へ貫通（離脱）しにくくなる効果を発現することもできる。 Here, in this description and the drawings relating to this description, the slight elastic deformation amount and the slight taper angle β of the dropout prevention portion 22C are not taken into consideration (the same applies hereinafter). The taper angle β is provided so that the elastic member 22 can be easily covered on the tubular member 23 from above and the flange member 21 can be easily covered on the elastic member 22 from above. Further, the taper angle β shown in FIGS. 4 to 6 including this portion makes it difficult for the tubular member 23 to penetrate (remove) to the elbow member 5 side in addition to the ease of covering from above. The effect can also be exerted.

なお、本実施の形態に係る排水トラップ１００においては、脱落防止部２２Ｃを弾性部材２２の内周面２２Ｆ側のみに設けているが、これに替えて／これに加えて、脱落防止部２２Ｃを弾性部材２２の外周面２２Ｄ側に設けるようにしても構わない。さらに、弾性部材２２に脱落防止部を設けるのではなく、弾性部材２２に当接するフランジ部材２１の内
周面２１Ｄ側や筒状部材２３の上筒部２３Ａの外周面２３Ｆ側に脱落防止部２２Ｃのような構造を備えるようにしても構わない。 In the drain trap 100 according to the present embodiment, the dropout prevention portion 22C is provided only on the inner peripheral surface 22F side of the elastic member 22, but instead of this / in addition to this, the dropout prevention portion 22C is provided. It may be provided on the outer peripheral surface 22D side of the elastic member 22. Further, instead of providing the elastic member 22 with a fall prevention portion, the fall prevention portion 22C is on the inner peripheral surface 21D side of the flange member 21 that abuts on the elastic member 22 and on the outer peripheral surface 23F side of the upper tubular portion 23A of the tubular member 23. The structure may be provided as follows.

より詳しくは、この弾性部材２２は、前述したように、円環形状を備え、筒状部材２３の外周とフランジ部材２１の内周との間に挟持されているとともに、筒状部材２３、フランジ部材２１および弾性部材２２の少なくとも１つは、前記弾性部材が前記固定用筒体から前記エルボ部材側へ離脱することを防止する離脱防止部を備える。本実施の形態おいては、このような離脱防止部の一例として、フランジ部材２１に離脱防止部２１Ｅが設けられている。 More specifically, as described above, the elastic member 22 has an annular shape and is sandwiched between the outer circumference of the tubular member 23 and the inner circumference of the flange member 21, as well as the tubular member 23 and the flange. At least one of the member 21 and the elastic member 22 includes a detachment prevention portion that prevents the elastic member from detaching from the fixing cylinder toward the elbow member. In the present embodiment, as an example of such a detachment prevention portion, the flange member 21 is provided with the detachment prevention portion 21E.

さらに詳しくは、限定されるものではないが、この離脱防止部２１Ｅについて説明する。フランジ部材２１の円環内径φＤ（Ｎ）は弾性部材２２の円環外径φＤ（Ｌ）に略等しく（弾性部材２２がフランジ部材２１と筒状部材２３とに挟持されることからこのように略等しいか弾性部材２２の円環外径φＤ（Ｌ）が若干大きく）、この離脱防止部２１Ｅは、フランジ部材２１の円環内周の上端面に設けられた、弾性部材２２の円環外径φＤ（Ｌ）よりも小さく弾性部材２２の円環内径φＤ（Ｓ）よりも大きい径φＤ（Ｍ）を備えた小径部として構成される。すなわち、図３（Ｂ）に示すように、フランジ部材２１の円環内周の上端面には、φＤ（Ｌ）＞φＤ（Ｍ）＞φＤ（Ｓ）を満足するφＤ（Ｍ）を備えた離脱防止部２１Ｅを備える。 More specifically, but not limited to, the detachment prevention unit 21E will be described. The annular inner diameter φD (N) of the flange member 21 is substantially equal to the annular outer diameter φD (L) of the elastic member 22 (since the elastic member 22 is sandwiched between the flange member 21 and the tubular member 23, thus The outer diameter φD (L) of the annulus of the elastic member 22 is substantially equal or slightly larger), and the detachment prevention portion 21E is provided on the upper end surface of the inner circumference of the annulus of the flange member 21 and is outside the annulus of the elastic member 22. It is configured as a small diameter portion having a diameter φD (M) smaller than the diameter φD (L) and larger than the annular inner diameter φD (S) of the elastic member 22. That is, as shown in FIG. 3B, the upper end surface of the inner circumference of the annulus of the flange member 21 is provided with φD (M) satisfying φD (L)> φD (M)> φD (S). A detachment prevention unit 21E is provided.

このように離脱防止部２１Ｅを構成することにより、弾性部材２２が固定用筒体２（より詳しくはフランジ部材２１）からエルボ部材５側へ離脱することを防止することができる。
なお、本実施の形態に係る排水トラップ１００においては、離脱防止部２１Ｅをフランジ部材２１の円環内周の上端面のみに設けているが、これに替えて／これに加えて、弾性部材２２および／または筒状部材２３に離脱防止部２１Ｅと同様の作用効果を発現する離脱防止部を設けるようにしても構わない。 By configuring the detachment prevention portion 21E in this way, it is possible to prevent the elastic member 22 from detaching from the fixing cylinder 2 (more specifically, the flange member 21) toward the elbow member 5.
In the drain trap 100 according to the present embodiment, the detachment prevention portion 21E is provided only on the upper end surface of the inner circumference of the ring of the flange member 21, but in place of / in addition to this, the elastic member 22 And / or the tubular member 23 may be provided with a detachment prevention portion that exhibits the same action and effect as the detachment prevention portion 21E.

なお、本実施の形態に係る排水トラップ１００においては、図３（Ｂ）に示すように、高さＨ（３）においてフランジ部材２１の筒部２１Ｃの上端面と弾性部材２２の円環部２２Ａの上端面とをツライチ（ある方向の長さが一致）にするために弾性部材２２の円環部２２Ａの上端面には出張部２２Ｂを備えるが、この出張部２２Ｂの有無にかかわらず（なければツライチにならず弾性部材２２が落ち込む）、φＤ（Ｌ）＞φＤ（Ｍ）＞φＤ（Ｓ）を満足するφＤ（Ｍ）を備えた離脱防止部２１Ｅをフランジ部材２１の円環内周の上端面に備える。 In the drain trap 100 according to the present embodiment, as shown in FIG. 3B, the upper end surface of the tubular portion 21C of the flange member 21 and the annular portion 22A of the elastic member 22 at the height H (3). A business trip portion 22B is provided on the upper end surface of the annular portion 22A of the elastic member 22 in order to make the upper end surface of the elastic member 22 into a trap (the lengths in a certain direction match), regardless of the presence or absence of the business trip portion 22B. The elastic member 22 does not become a trap), and the detachment prevention portion 21E provided with φD (M) satisfying φD (L)> φD (M)> φD (S) is attached to the inner circumference of the ring of the flange member 21. Prepare for the upper end surface.

さらに、本実施の形態に係る排水トラップ１００においては、高さ方向の特徴的な構造として、前述した高さＨ（３）におけるフランジ部材２１の筒部２１Ｃの上端面と弾性部材２２の円環部２２Ａの上端面との関係（ツライチ）に加えて、図３（Ｂ）（および後述する図７（Ａ））に示すように、正常に施工された排水管Ｐに接続された場合にはフランジ部材２１と弾性部材２２と筒状部材２３とを組み上げた固定用筒体２において、筒状部材２３の上筒部２３Ａの上端面高さＨ（１）は化粧カバー３の上端面高さＨ（２）よりも高い。
［排水トラップの施工状態］
次に、このように構成された排水トラップ１００の施工状態について施工手順とともに説明する。 Further, in the drain trap 100 according to the present embodiment, as a characteristic structure in the height direction, the upper end surface of the tubular portion 21C of the flange member 21 and the annular ring of the elastic member 22 at the height H (3) described above. In addition to the relationship (flange) with the upper end surface of the portion 22A, as shown in FIG. 3 (B) (and FIG. 7 (A) described later), when connected to a normally constructed drain pipe P In the fixing tubular body 2 in which the flange member 21, the elastic member 22, and the tubular member 23 are assembled, the height H (1) of the upper end surface of the upper tubular portion 23A of the tubular member 23 is the height of the upper end surface of the decorative cover 3. Higher than H (2).
[Construction status of drain trap]
Next, the construction state of the drain trap 100 configured in this way will be described together with the construction procedure.

まず、施工手順について説明する。設備機器の設置位置に合わせて、排水管Ｐの外径よりも大径であって、固定用筒体２におけるフランジ部材２１のフランジ部材２１のビス穴２１Ａの取付直径（図１（Ａ）に示す半径Ｒ（１）の２倍）よりもビスＳの分だけ少なくとも小径の取付穴ＦＡを床板Ｆに形成する。そして、床下に敷設された排水管Ｐの一端部を床板Ｆの取付穴ＦＡに臨むように立ち上げる。このとき、排水管Ｐの上端面と床面との距離関係がまちまちであったり（床表面（床上面）ＦＬよりも下方で排水管Ｐが切断されていたり床表面ＦＬよりも上方で排水管Ｐが切断されていたり）、床表面ＦＬに対して垂直ではなく斜めに立ち上がっていたりして、排水管Ｐの施工精度が好ましくないことがある。 First, the construction procedure will be described. The diameter is larger than the outer diameter of the drain pipe P according to the installation position of the equipment, and the mounting diameter of the screw hole 21A of the flange member 21 of the flange member 21 in the fixing cylinder 2 (in FIG. 1A). A mounting hole FA having a diameter smaller than that of the indicated radius R (1) is formed in the floor plate F by the amount of the screw S. Then, one end of the drainage pipe P laid under the floor is raised so as to face the mounting hole FA of the floor plate F. At this time, the distance relationship between the upper end surface of the drain pipe P and the floor surface is different (the drain pipe P is cut below the floor surface (floor upper surface) FL, or the drain pipe is above the floor surface FL. The construction accuracy of the drainage pipe P may not be preferable because P is cut off) or the floor surface FL rises diagonally instead of perpendicularly.

次いで、排水管Ｐの上端端面に接着剤を塗布するとともに、固定用筒体２における筒状部材２３の下筒部２３Ｂの外周面および排水管Ｐの内周面（排水管Ｐの内周面の高さ方向位置は下筒部２３Ｂの外周面に対応する位置）に接着剤を塗布し、排水管Ｐの上端面を筒状部材２３の下筒部２３Ｂの上面（テーパ部２３Ｃの下面）に当接するまで嵌挿し、両者を接着する。固定用筒体２の筒状部材２３と排水管Ｐとの接着が終了すれば、フランジ部材２１に弾性部材２２を装着して、固定用筒体２を床板Ｆに載置し、フランジ部材２１のビス穴２１Ａを通してビスＳをねじ込み、床板Ｆに固定する。固定用筒体２が固定されたならば、化粧カバー３を固定用筒体２に装着し、固定用筒体２（フランジ部材２１、弾性部材２２および筒状部材２３）の外面を覆って化粧する。 Next, an adhesive is applied to the upper end surface of the drain pipe P, and the outer peripheral surface of the lower tubular portion 23B of the tubular member 23 in the fixing cylinder 2 and the inner peripheral surface of the drain pipe P (inner peripheral surface of the drain pipe P). Adhesive is applied to the position in the height direction corresponding to the outer peripheral surface of the lower cylinder portion 23B), and the upper end surface of the drain pipe P is the upper surface of the lower cylinder portion 23B of the tubular member 23 (lower surface of the tapered portion 23C). Insert and insert until it comes into contact with, and bond the two. When the bonding between the tubular member 23 of the fixing cylinder 2 and the drain pipe P is completed, the elastic member 22 is attached to the flange member 21, the fixing cylinder 2 is placed on the floor plate F, and the flange member 21 is placed. The screw S is screwed through the screw hole 21A of the above and fixed to the floor plate F. When the fixing cylinder 2 is fixed, the decorative cover 3 is attached to the fixing cylinder 2 to cover the outer surface of the fixing cylinder 2 (flange member 21, elastic member 22 and tubular member 23) for makeup. To do.

次いで、トラップ本体４を固定用筒体２に嵌挿しつつ排水管Ｐの内部に挿入し、その周縁段差部４１１を固定用筒体２における筒状部材２３の支持部２３Ｕに支持する。さらに、固定用筒体２を通して、ロック部材６を装着したエルボ部材５の他端部をトラップ本体４におけるわん体４１の周縁段差部４１１の内周面に嵌挿させるとともに、その突出部５１を固定用筒体２における筒状部材２３の上筒部２３Ａの内筒上面２３Ｎに支持する。この後、ロック部材６を固定用筒体２における筒状部材２３の上筒部２３Ａにねじ込めば（ロック部材６の雄ネジ６Ｍを固定用筒体２における筒状部材２３の上筒部２３Ａの雌ねじ２３Ｍに螺合させれば）、エルボ部材５を固定用筒体２との間で挟み込み、水密性を確保しつつ離脱しないように固定することができる。 Next, the trap body 4 is inserted into the drain pipe P while being fitted into the fixing cylinder 2, and the peripheral step portion 411 thereof is supported by the support portion 23U of the tubular member 23 in the fixing cylinder 2. Further, through the fixing cylinder 2, the other end of the elbow member 5 to which the lock member 6 is mounted is fitted into the inner peripheral surface of the peripheral step portion 411 of the bowl 41 in the trap body 4, and the protruding portion 51 is inserted. It is supported on the inner cylinder upper surface 23N of the upper cylinder portion 23A of the tubular member 23 in the fixing cylinder 2. After that, if the lock member 6 is screwed into the upper tubular portion 23A of the tubular member 23 in the fixing tubular body 2 (the male screw 6M of the lock member 6 is screwed into the upper tubular portion 23A of the tubular member 23 in the fixing tubular body 2). The elbow member 5 can be sandwiched between the elbow member 5 and the fixing cylinder 2 (by being screwed into the female screw 23M), and can be fixed so as not to come off while ensuring watertightness.

このようにして、排水トラップ１００を床板Ｆに取り付けたならば、図示しない設備機器の排水ホースをエルボ部材５の一端部に挿入し、固定バンドＫ（図１参照）を介して締結すればよい。これにより、設備機器の排水は、排水ホースを通してエルボ部材５からトラップ本体４に導かれる。そして、トラップ本体４に導かれた排水は、仕切り壁４２の傾斜部４２１に沿ってわん体４１の横断面半円状の一方の空間に流れるとともに、流通路４ａを経てわん体４１の横断面半円状の他方の空間に達し、流出口４Ｂから溢水し、排水管Ｐへと流出する。この際、トラップ本体４のわん体４１の内部において、その底面から流出口４Ｂに達する高さの封水を確保することができ、排水管Ｐを上昇する臭気を水封することができる。 After the drain trap 100 is attached to the floor plate F in this way, a drain hose of equipment (not shown) may be inserted into one end of the elbow member 5 and fastened via a fixing band K (see FIG. 1). .. As a result, the drainage of the equipment is guided from the elbow member 5 to the trap body 4 through the drain hose. Then, the drainage guided to the trap body 4 flows along the inclined portion 421 of the partition wall 42 into one space having a semicircular cross section of the bowl 41, and also flows through the flow passage 4a to the cross section of the bowl 41. It reaches the other semicircular space, overflows from the outlet 4B, and flows out to the drain pipe P. At this time, inside the housing 41 of the trap body 4, it is possible to secure water sealing at a height reaching the outlet 4B from the bottom surface thereof, and it is possible to water-seal the odor rising in the drain pipe P.

次に、前述した特徴的な構造（Ａ）に関する、排水トラップ１００を取り付けた後の施工確認について説明する。以下においては、まず、固定用筒体２のフランジ部材２１および弾性部材２２を無色透明または有色透明で形成して間接的に視覚により確認（視認）する手順を説明した後に、固定用筒体２のフランジ部材２１または弾性部材２２を無色透明および有色透明に限定しないで形成して直接的に視覚により確認（視認）および触覚により確認（触認）する手順を説明する。 Next, the construction confirmation after the drain trap 100 is attached will be described with respect to the characteristic structure (A) described above. In the following, first, the procedure of forming the flange member 21 and the elastic member 22 of the fixing cylinder 2 in colorless transparent or colored transparent and indirectly visually confirming (visualizing) them will be described, and then the fixing cylinder 2 The procedure for forming the flange member 21 or the elastic member 22 of the above without being limited to colorless transparent and colored transparent and directly visually confirming (visually) and visually confirming (tactilely) will be described.

共通する手順として、ロック部材６を緩めてエルボ部材５およびロック部材６を固定用筒体２から離脱させた後、トラップ本体４を引き上げて取り出し、さらに、化粧カバー３を離脱させ、床板Ｆ上に排水管Ｐが接続された固定用筒体２を露出させる。
固定用筒体２のフランジ部材２１および弾性部材２２を無色透明または有色透明で形成している場合には、床板Ｆの上方から図１（Ｂ）および図３（Ｂ）に示す白抜き矢示方向に、排水管Ｐの接続端面ＴＭ（排水管Ｐの上端面ＴＭ）を目視観察することができる。すなわち、固定用筒体２における筒状部材２３の下筒部２３Ｂの外周面と排水管Ｐとの接続状態、具体的には、接着剤の有無および接着剤の塗布状態を含めて、排水管Ｐの接続端面ＴＭ（排水管Ｐの上端面ＴＭ）を、床板Ｆの上方から目視観察することができる。特に、排水管Ｐとの接続部となる筒状部材２３の下筒部２３Ｂはテーパ部２３Ｃを備えるために排水トラップ１００と排水管Ｐとの接続端面ＴＭ（排水管Ｐの上端面ＴＭ）を床上から好適に視認することができる。 As a common procedure, after loosening the lock member 6 and separating the elbow member 5 and the lock member 6 from the fixing cylinder 2, the trap body 4 is pulled up and taken out, and further, the decorative cover 3 is separated and placed on the floor plate F. The fixing cylinder 2 to which the drain pipe P is connected is exposed.
When the flange member 21 and the elastic member 22 of the fixing cylinder 2 are formed of colorless transparent or colored transparent, the white arrows shown in FIGS. 1 (B) and 3 (B) are shown from above the floor plate F. In the direction, the connection end surface TM of the drain pipe P (the upper end surface TM of the drain pipe P) can be visually observed. That is, the drainage pipe includes the connection state between the outer peripheral surface of the lower cylinder portion 23B of the tubular member 23 and the drainage pipe P in the fixing cylinder 2, specifically, the presence / absence of the adhesive and the application state of the adhesive. The connection end surface TM of P (the upper end surface TM of the drain pipe P) can be visually observed from above the floor plate F. In particular, since the lower tubular portion 23B of the tubular member 23 serving as the connecting portion with the drain pipe P includes the tapered portion 23C, the connection end surface TM between the drain trap 100 and the drain pipe P (the upper end surface TM of the drain pipe P) is provided. It can be preferably visually recognized from above the floor.

固定用筒体２のフランジ部材２１および弾性部材２２を無色透明または有色透明で形成している場合であっても無色透明および有色透明で形成していない場合であっても、排水トラップ１００の固定用筒体２のフランジ部材２１に開口部としての点検口を図２に点線で示すように設けることにより、この点検口を通して、この排水トラップ１００と排水管Ｐとの接続端面ＴＭを視覚にて確認（視認）することができるとともに、指先を点検口か
ら挿入してこの排水トラップ１００と排水管Ｐとの接続状態を触覚にて確認（触認）することができる。 Fixing of the drain trap 100 regardless of whether the flange member 21 and the elastic member 22 of the fixing cylinder 2 are formed of colorless transparent or colored transparent or not formed of colorless transparent or colored transparent. By providing an inspection port as an opening in the flange member 21 of the cylinder body 2 as shown by a dotted line in FIG. 2, the connection end face TM between the drain trap 100 and the drain pipe P can be visually observed through the inspection port. In addition to being able to confirm (visually check), the connection state between the drain trap 100 and the drain pipe P can be visually confirmed (tactilely recognized) by inserting a fingertip through the inspection port.

このように、排水トラップ１００と排水管Ｐとを接続した後において床上斜め上方から排水トラップと排水管との接続端面ＴＭを目視にて確認できることを品確法により求められても、本実施の形態に係る排水トラップ１００によると、排水トラップ１００と排水管Ｐとの接続端面ＴＭを床上から良好に視認することができる。
次に、前述した特徴的な構造（Ｂ）に関する、排水管Ｐの施工精度が好ましくない場合における排水トラップ１００を排水管Ｐに接続して床板Ｆに取り付ける態様について、排水トラップ１００を排水管Ｐへ接続した施工状態を示す図７を参照して説明する。なお、図７（Ａ）は、正常に施工された排水管Ｐと排水トラップ１００との接続状態を示す断面図であって、図７（Ｂ）は、約３度傾いて立ち上がって施工された排水管Ｐと排水トラップ１００との接続状態を示す断面図であって、図７（Ｃ）は、床表面ＦＬよりも上方で切断されて施工された排水管Ｐと排水トラップ１００との接続状態を示す断面図であって、図７（Ｄ）は、床表面ＦＬよりも下方で切断された排水管Ｐと排水トラップ１００との接続状態を示す断面図である。すなわち、図７（Ｂ）、図７（Ｃ）および図７（Ｄ）は、排水管Ｐの施工精度が好ましくないにも関わらず、本実施の形態に係る排水トラップ１００が備える弾性部材２２により排水トラップ１００を排水管Ｐに好適に接続して排水トラップ１００を床板Ｆに取り付けることができる態様を示している。 In this way, even if it is required by the quality assurance method that the connection end face TM between the drain trap and the drain pipe can be visually confirmed from diagonally above the floor after the drain trap 100 and the drain pipe P are connected, the present embodiment According to the drain trap 100 according to the above, the connection end surface TM between the drain trap 100 and the drain pipe P can be satisfactorily visually recognized from above the floor.
Next, regarding the above-mentioned characteristic structure (B), when the construction accuracy of the drainage pipe P is not preferable, the drainage trap 100 is connected to the drainage pipe P and attached to the floor plate F. It will be described with reference to FIG. 7 which shows the construction state connected to. Note that FIG. 7A is a cross-sectional view showing the connection state between the drainage pipe P and the drainage trap 100 which were normally constructed, and FIG. 7B is constructed by standing up at an angle of about 3 degrees. FIG. 7 (C) is a cross-sectional view showing the connection state of the drain pipe P and the drain trap 100, and FIG. 7 (C) shows the connection state of the drain pipe P and the drain trap 100 constructed by cutting above the floor surface FL. 7 (D) is a cross-sectional view showing a connection state between the drain pipe P cut below the floor surface FL and the drain trap 100. That is, in FIGS. 7 (B), 7 (C) and 7 (D), although the construction accuracy of the drain pipe P is not preferable, the elastic member 22 included in the drain trap 100 according to the present embodiment is used. It shows an embodiment in which the drain trap 100 can be suitably connected to the drain pipe P and the drain trap 100 can be attached to the floor plate F.

図７（Ａ）に正常に施工された排水管Ｐに対して、図７（Ｂ）に示すように排水管Ｐが約３度傾いて立ち上がって施工されている場合について説明する。このように排水管Ｐが約３度傾いて立ち上がって施工されているため、排水管Ｐ（の内周面）に固定用筒体２の筒状部材２３の下筒部２３Ｂの外周面とを接着すると、固定用筒体２の筒状部材２３が約３度傾いて接続されて床表面ＦＬに対して斜めに固定されてしまう。しかしながら、筒状部材２３とフランジ部材２１との間でそれらに挟持された弾性部材２２が弾性変形することにより、フランジ部材２１は床上面ＦＬに対して水平な状態を実現することができている。この場合において、弾性部材２２を弾性変形させてフランジ部材２１を床上面ＦＬに対して水平にするときに、脱落防止部２２Ｃにより適用できる可動域を広げること（より傾いて立ち上がった排水管Ｐに対応すること）ができている。この点で、脱落防止部２２Ｃは、弾性部材２２が固定用筒体２から脱落することを防止することができる機能に加えて、斜めに立ち上がった排水管Ｐに排水トラップ１００が接続される場合にフランジ部材２１を床上面ＦＬに対して水平とする機能をより好適に実現することができる。この点で、脱落防止部２２Ｃは、フランジ水平補正部とも言える。このため、排水トラップ１００を排水管Ｐに接続した後に、排水トラップ１００を床板Ｆに良好に取り付けることができる。 A case will be described in which the drainage pipe P is tilted by about 3 degrees and stands up as shown in FIG. 7B with respect to the drainage pipe P normally constructed in FIG. 7 (A). Since the drainage pipe P is constructed so as to be tilted by about 3 degrees in this way, the drainage pipe P (inner peripheral surface) is connected to the outer peripheral surface of the lower tubular portion 23B of the tubular member 23 of the fixing cylinder 2. When they are adhered, the tubular member 23 of the fixing cylinder 2 is connected with an inclination of about 3 degrees and is fixed obliquely to the floor surface FL. However, the elastic member 22 sandwiched between the tubular member 23 and the flange member 21 is elastically deformed, so that the flange member 21 can realize a horizontal state with respect to the floor upper surface FL. .. In this case, when the elastic member 22 is elastically deformed to make the flange member 21 horizontal with respect to the floor upper surface FL, the range of motion applicable by the dropout prevention portion 22C is widened (to the drainage pipe P that stands up more inclined). Corresponding) is done. In this respect, the dropout prevention unit 22C has a function of preventing the elastic member 22 from falling off from the fixing cylinder 2, and when the drainage trap 100 is connected to the drainage pipe P that rises diagonally. The function of making the flange member 21 horizontal to the floor upper surface FL can be more preferably realized. In this respect, the dropout prevention unit 22C can be said to be a flange horizontal correction unit. Therefore, after the drain trap 100 is connected to the drain pipe P, the drain trap 100 can be satisfactorily attached to the floor plate F.

次に、図７（Ａ）に正常に施工された排水管Ｐに対して、図７（Ｃ）に示すように床表面ＦＬよりも上方で排水管Ｐが切断されて施工されている場合について説明する。このように排水管Ｐが床表面ＦＬよりも上方で切断されて施工されているため、排水管Ｐの上端面を筒状部材２３の下筒部２３Ｂの上面（テーパ部２３Ｃの下面）に当接するまで嵌挿して排水管Ｐ（の内周面）に固定用筒体２の筒状部材２３の下筒部２３Ｂの外周面とを接着すると、筒状部材２３がフランジ部材２１および弾性部材２２に対して上方へ出っ張る（フランジ２１に対して筒状部材２３が少し上がる）。すなわち、フランジ部材２１と弾性部材２２と筒状部材２３とから構成される固定用筒体２において、弾性部材２２を介して筒状部材２３の上面がフランジ部材２１の上面から離隔するように固定用筒体２が構成されて、Ｈ（Ｃ２）＜Ｈ（２）かつＨ（Ｃ３）＜Ｈ（３）となる。このように筒状部材２３とフランジ部材２１との間でそれらに挟持された弾性部材２２が存在することにより、フランジ部材２１のビス穴２１Ａを通してビスＳをねじ込み、床板Ｆに固定することができている。このため、排水トラップ１００を排水管Ｐに接続した後に、排水トラップ１００を床板Ｆに良好に取り付けることができる。 Next, with respect to the drainage pipe P normally constructed in FIG. 7 (A), the drainage pipe P is cut and constructed above the floor surface FL as shown in FIG. 7 (C). explain. Since the drain pipe P is cut above the floor surface FL in this way, the upper end surface of the drain pipe P hits the upper surface (lower surface of the tapered portion 23C) of the lower tubular portion 23B of the tubular member 23. When it is fitted and inserted until it comes into contact with the drain pipe P (inner peripheral surface) and the outer peripheral surface of the lower tubular portion 23B of the tubular member 23 of the fixing tubular body 2 is adhered, the tubular member 23 becomes the flange member 21 and the elastic member 22. (The tubular member 23 rises slightly with respect to the flange 21). That is, in the fixing tubular body 2 composed of the flange member 21, the elastic member 22, and the tubular member 23, the upper surface of the tubular member 23 is fixed so as to be separated from the upper surface of the flange member 21 via the elastic member 22. The barrel 2 is configured so that H (C2) <H (2) and H (C3) <H (3). Since the elastic member 22 sandwiched between the tubular member 23 and the flange member 21 is present in this way, the screw S can be screwed through the screw hole 21A of the flange member 21 and fixed to the floor plate F. ing. Therefore, after the drain trap 100 is connected to the drain pipe P, the drain trap 100 can be satisfactorily attached to the floor plate F.

次に、図７（Ａ）に正常に施工された排水管Ｐに対して、図７（Ｄ）に示すように床表面ＦＬよりもした下方で排水管Ｐが切断されて施工されている場合について説明する。こ
のように排水管Ｐが床表面ＦＬよりも下方で切断されて施工されているため、排水管Ｐの上端面を筒状部材２３の下筒部２３Ｂの上面（テーパ部２３Ｃの下面）に当接するまで嵌挿して排水管Ｐ（の内周面）に固定用筒体２の筒状部材２３の下筒部２３Ｂの外周面とを接着すると、筒状部材２３がフランジ部材２１および弾性部材２２に対して下方へ引っ込む（フランジ２１に対して筒状部材２３が少し下がる）。すなわち、フランジ部材２１と弾性部材２２と筒状部材２３とから構成される固定用筒体２において、弾性部材２２を介して筒状部材２３の上面がフランジ部材２１の上面へ接近するように固定用筒体２が構成されて、Ｈ（Ｄ２）＞Ｈ（２）かつＨ（Ｄ３）＞Ｈ（３）となる。このように筒状部材２３とフランジ部材２１との間でそれらに挟持された弾性部材２２が存在することにより、フランジ部材２１のビス穴２１Ａを通してビスＳをねじ込み、床板Ｆに固定することができている。このため、排水トラップ１００を排水管Ｐに接続した後に、排水トラップ１００を床板Ｆに良好に取り付けることができる。 Next, with respect to the drainage pipe P normally constructed in FIG. 7 (A), the drainage pipe P is cut and constructed below the floor surface FL as shown in FIG. 7 (D). Will be described. Since the drain pipe P is cut below the floor surface FL in this way, the upper end surface of the drain pipe P hits the upper surface (lower surface of the tapered portion 23C) of the lower tubular portion 23B of the tubular member 23. When it is fitted and inserted until it comes into contact with the drain pipe P (inner peripheral surface) and the outer peripheral surface of the lower tubular portion 23B of the tubular member 23 of the fixing tubular body 2 is adhered, the tubular member 23 becomes the flange member 21 and the elastic member 22. (The tubular member 23 is slightly lowered with respect to the flange 21). That is, in the fixing tubular body 2 composed of the flange member 21, the elastic member 22, and the tubular member 23, the upper surface of the tubular member 23 is fixed so as to approach the upper surface of the flange member 21 via the elastic member 22. The barrel 2 is configured so that H (D2)> H (2) and H (D3)> H (3). Since the elastic member 22 sandwiched between the tubular member 23 and the flange member 21 is present in this way, the screw S can be screwed through the screw hole 21A of the flange member 21 and fixed to the floor plate F. ing. Therefore, after the drain trap 100 is connected to the drain pipe P, the drain trap 100 can be satisfactorily attached to the floor plate F.

以上のようにして、本実施の形態に係る排水トラップ１００によると、
（Ａ）排水トラップ１００と排水管Ｐとの接続端面ＴＭを床上から良好に視認することができたり、
（Ｂ）排水トラップ１００に接続される排水管Ｐの施工精度が好ましくない場合であっても、排水トラップ１００を排水管Ｐに好適に接続することができるとともに排水管Ｐが接続された排水トラップ１００を床面に好適に固定することができたりする。 As described above, according to the drain trap 100 according to the present embodiment,
(A) The connection end face TM between the drain trap 100 and the drain pipe P can be clearly seen from above the floor.
(B) Even when the construction accuracy of the drain pipe P connected to the drain trap 100 is not preferable, the drain trap 100 can be suitably connected to the drain pipe P and the drain trap P to which the drain pipe P is connected is connected. The 100 can be suitably fixed to the floor surface.

なお、今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は上記した説明ではなくて特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 It should be noted that the embodiments disclosed this time are exemplary in all respects and are not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and it is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

本発明は、設備機器の排水ホースと排水管との間に配設されて設備機器の排水を排水管に排出する排水トラップに好適であって、（Ａ）排水トラップと排水管との接続端面を床上から視認することができたり、（Ｂ）排水トラップに接続される排水管の施工精度が好ましくない場合であっても排水トラップを排水管に好適に接続することができるとともに排水管が接続された排水トラップを床面に好適に固定することができたりする排水トラップに特に好適である。 The present invention is suitable for a drain trap that is arranged between the drain hose of the equipment and the drain pipe and discharges the drainage of the equipment to the drain pipe, and (A) the connection end face between the drain trap and the drain pipe. Can be visually recognized from above the floor, and (B) the drain trap can be suitably connected to the drain pipe and the drain pipe is connected even when the construction accuracy of the drain pipe connected to the drain trap is not preferable. It is particularly suitable for a drain trap in which the drain trap can be suitably fixed to the floor surface.

１００排水トラップ
２固定用筒体
２１フランジ部材
２２弾性部材
２３筒状部材
３化粧カバー
４トラップ本体
５エルボ部材
６ロック部材
Ｐ排水管
Ｆ床板
ＦＡ取付穴 100 Drain trap 2 Fixing cylinder 21 Flange member 22 Elastic member 23 Cylindrical member 3 Decorative cover 4 Trap body 5 Elbow member 6 Lock member P Drain pipe F Floor plate FA mounting hole

Claims

It is a drain trap that guides the drainage of equipment to the drainage pipe set up in the mounting hole of the floor plate and discharges it.
A fixing cylinder that is connected to the drain pipe and fixed to the periphery of the mounting hole of the floor plate,
A trap body that is supported by the fixing cylinder and can secure water sealing,
An elbow member that is supported by the fixing cylinder and can be connected to the drain hose of equipment.
It is composed of a lock member that is attached to the elbow member and is screwed to the fixing cylinder to sandwich the elbow member with the fixing cylinder.
The fixing cylinder is composed of a tubular member, a flange portion provided on the outer periphery of the tubular member, and a tapered portion provided at a portion where the diameter is reduced from the flange portion to the tubular member.
A drain trap characterized in that the inner peripheral surface of a drain pipe is adhered to the outer peripheral surface of the tubular member via an adhesive, while the flange portion is fixed to a floor plate.

The drain trap according to claim 1, wherein the outer diameter of the tubular member is substantially equal to the inner diameter of the drain pipe, and the outer diameter on the reduced diameter side of the tapered portion is smaller than the outer diameter of the drain pipe. ..

The drain trap according to claim 1, wherein the outer diameter of the tubular member is substantially equal to the inner diameter of the drain pipe, and the outer diameter on the reduced diameter side of the tapered portion is substantially equal to the outer diameter of the drain pipe. ..

The drain trap according to any one of claims 1 to 3, wherein the flange portion of the fixing cylinder is detachably connected to the tubular member.

The drain trap according to any one of claims 1 to 4, wherein the flange portion includes an opening other than a portion fixed to the floor plate.