JP4099751B2

JP4099751B2 - Drainage cover member

Info

Publication number: JP4099751B2
Application number: JP2002062084A
Authority: JP
Inventors: 伊藤　　嘉浩
Original assignee: 丸一株式会社
Priority date: 2002-03-07
Filing date: 2002-03-07
Publication date: 2008-06-11
Anticipated expiration: 2022-03-07
Also published as: JP2003261971A

Description

【０００１】
【発明の属する技術分野】
本発明は洗面台、流し台などの槽体や、浴室や洗濯機などに利用される防水パンなど、使用によって排水が生じる各種の排水機器において、それらの排水を行う排水装置の排水口に取り付けられる被覆部材に関する物である。
【０００２】
【従来の技術】
従来より洗面台、流し台などの槽体や、浴室や洗濯機などに利用される防水パンなど、使用によって排水が生じる各種の排水機器において、それらの排水を行う排水装置が用いられている。
【０００３】
図１７に示した排水装置はその一例で、排水トラップと呼ばれる、下水側からの臭気や害虫類の進入を防止する機能を有する排水装置を示したものである。
【０００４】
ところで、排水は既に何らかの為に使用された後の水であるため、例えば流し台において食器等の洗浄に用いられた排水であれば調理くず等が、また洗面台において洗髪に用いられた排水であれば毛髪等が、それぞれ殆どの場合混入している。これらをそのまま排水口から下水側に排出してしまうと、下水管の中でこれらの塵芥が詰まって管詰まりを生じるなどの不具合がある。そこで、通常排水装置の排水口には、排水中のある一定の大きさよりも大きな塵芥が排水口内に入らないようにスリット部を設けて大きな塵芥の進入を防ぐ目皿部材や、有底筒状にして側面及び底面を編目状とし、排水中の塵芥や毛髪等を捕集するストレーナーなどが配置される。また上記のようにストレーナーを用いると、そのままでは槽体の使用者がストレーナー内の塵芥を直視して不快感を感じるから、排水を行いつつ、且つ排水口内のストレーナーなどを直視しないようにする、排水プレートと呼ばれる目隠部材が配置されることが多い。上記のように、排水装置の排水口には、目皿部材やストレーナー、また目隠部材といった、排水口に取り付けられる被覆部材が殆どの場合用いられている。
【０００５】
これら排水口の被覆部材の、排水口への取付方法は様々で、例えば図２１に示したストレーナーの場合、ストレーナーの開口周縁に設けられた鍔部を、排水装置の開口部に載置して取付を行っている。また図２２に示した目隠部材の場合、目隠部材の外縁部を、排水口の開口部近傍に遊嵌することで排水口への取付としている。
【０００６】
これに対し、目皿部材の場合は、以下に記載するような強固な嵌合方法によって取り付けられる場合が多い。以下に、取り付けに使用される各部材と、その取付方法の一例を図面を参照しつつ説明する。
図１７乃至図２０に示した、通常目皿部材と呼ばれる排水口の被覆部材は、以下に説明する構造を備え、段落０００７に示したような方法で着脱自在に排水口に取付される。
排水装置の排水口は、槽体の底面部に形成されるものであって、円筒状にしてその内周面の複数箇所に突起部を設けてなる。
被覆部材である目皿部材は排水装置の排水口に備えられる、排水口より多少小さな径を有する略円筒形状の部材で、円筒形状の上端から内方に向かって設けた上面部分には、排水を排水口内に通すための複数のスリット部を設けて成る。
また目皿部材には、排水口の突起部と対応する位置に、下端まで解放され、排水口の突起部の横幅よりも多少幅広な横幅を有する縦溝部と、縦溝部の側面部に該縦溝部と連通して円弧方向に延設され、縦溝部近傍では縦幅が突起部の縦幅よりも多少幅広で、連通する縦溝部から離れるほど縦幅が狭くなり突起部と縦方向において嵌合するテーパー部を備えた横溝部と、より成る嵌合溝を側面に設けてなる。
【０００７】
上記のように構成した目皿部材を排水口に取り付ける場合、まず目皿部材の縦溝部を、平面視排水口の突起部に一致する位置に配置する。
次に縦溝部に沿って目皿部材を降下させ、排水口の突起部を、縦溝部に、横溝部の高さになるまで挿通させる。次に目皿部材を横溝部に沿って回転させると、横溝部に設けられたテーパー部によって、突起部が通過している部分の横溝部の縦幅が幅狭となり、最終的に突起部と横溝部が嵌合して目皿部材が排水口に取り付けられる。
【０００８】
【発明が解決しようとする課題】
ところで上記段落０００６乃至段落０００７に示した目皿部材のような、嵌合溝を設けた被覆部材においては、嵌合の強弱のバランスにおいて常に問題があった。
【０００９】
即ち、これら排水口と被覆部材の取付構造においては、取付のバランスの問題から、突起部と嵌合溝は、通常２乃至４箇所など、複数箇所設けられる。このため、任意の一カ所において適当な嵌合強度になったとしても、他の箇所ではまだ嵌合強度が充分な状態に達していない場合がある。このような場合、残りの突起部と嵌合溝にも適度な嵌合強度が得られるまで、被覆部材を回転させるのが望ましいが、その場合、既に良好な嵌合強度になっていた箇所は必要以上に嵌合が行われて、脱着時に締まりすぎて脱着に不便であったり、或いは突起部また嵌合溝に破損が生じるなどの問題がある。
【００１０】
複数の排水口の突起部と目皿部材の嵌合溝との寸法が、全ての箇所において全く同一になっていれば、上記のような問題は発生しないが、実際にはこれらの製品は金型を用いた樹脂成形によって大量生産されるため、成型時の条件等によって樹脂の収縮率等に差異が生じるなどの理由から、複数ある排水口の突起部と目皿部材の嵌合溝の寸法が全てにおいて均等になることはあり得ないのが実際である。このため、排水口と被覆部材の嵌合を全体的に弱めに設定することで、嵌合不能となることを避けているが、この場合では搬送時や使用時に被覆部材が排水口から外れてしまう、といった問題が生じる。
【００１１】
更に上記のような、排水口の被覆部材の場合、砂噛みと呼ばれる問題が発生する。
排水口に流れ込む排水は、先にも記載したように、使用済みの汚水であるため、その中には微細なゴミや砂粒などが混入している場合が多い。これらが排水口に取り付けられた被覆部材の、突起部と嵌合溝との嵌合箇所に入り込むと、両者の嵌合を解除しようとしても、両者の間にこれら微細な塵芥や砂粒が入り込んで、微妙なバランスで成り立っている嵌合のバランスを崩し、嵌合の解除ができなくなってしまう、或いは着脱はできるものの、必要以上に嵌合が締まり着脱しにくくなったり、部材に傷や破損が生じる場合がある。
本発明は上記問題点に鑑み発明されたものであって、突起部と嵌合溝とを用いた排水口の被覆部材において、嵌合の歪みや砂噛みの問題を解決できる排水口の被覆部材を提供するものである。
【００１２】
【課題を解決するための手段】
請求項１に記載の排水口の被覆部材は、槽体の排水を行う、内周面に複数の突起部（２）を設けた、円筒状の排水口（１）と、排水口（１）の突起部（２）と対応する位置であって、排水口（１）の突起部（２）の横幅よりも多少幅広な横幅を有し且つ下端まで解放された縦溝部（３ａ）、該縦溝部（３ａ）と連通して円弧方向に延設され、縦溝部（３ａ）近傍では縦幅が突起部（２）の縦幅よりも多少幅広で、連通する縦溝部（３ａ）から離れるほど縦幅が狭くなり突起部（２）と縦方向において嵌合するテーパー部（３ｃ）を備えた横溝部（３ｂ）、より成る嵌合溝（３）を側面に設けた略円筒形状の被覆部材と、から構成される排水口の被覆部材において、突起部（２）若しくは嵌合溝（３）に、嵌合の強度を適切に調節する弾性部分（４）を備え、且つ弾性部分（４）を、横溝部（３ｂ）に沿って切欠部（５）を設けることで弾性を付与される、横溝部（３ｂ）の下側壁部（４ａ）としたことを特徴とする排水口の被覆部材である。
【００１３】
請求項２に記載の排水口の被覆部材は、槽体の排水を行う、内周面に複数の突起部（２）を設けた、円筒状の排水口（１）と、排水口（１）の突起部（２）と対応する位置であって、排水口（１）の突起部（２）の横幅よりも多少幅広な横幅を有し且つ下端まで解放された縦溝部（３ａ）、該縦溝部（３ａ）と連通して円弧方向に延設され、排水口（１）の突起部（２）の縦幅よりも多少幅広な縦幅を有した横溝部（３ｂ）、横溝部（３ｂ）の上壁又は下壁から突出された、部分的に横溝部（３ｂ）の縦幅を突起部（２）の縦幅より若干幅狭とするための凸部（３ｄ）、より成る嵌合溝（３）を側面に設けた略円筒形状の被覆部材と、から構成される排水口の被覆部材において、突起部（２）若しくは横溝部（３ｂ）の凸部（３ｄ）を含む部分に、嵌合の強度を適切に調節する弾性部分（４）を備え、且つ弾性部分（４）を、横溝部（３ｂ）に沿って切欠部（５）を設けることで弾性を付与される、横溝部（３ｂ）の下側壁部（４ａ）としたことを特徴とする排水口の被覆部材である。
【００１５】
請求項３に記載の排水口の被覆部材は、上記弾性部分（４）を、突起部（２）を弾性材にて構成することで設けたことを特徴とする上記段落００１２又は段落００１３に記載の排水口の被覆部材である。
【００１６】
請求項４に記載の排水口の被覆部材は、上記排水口の被覆部材において、被覆部材が、一定以上の大きさの塵芥が排水口内に流れ込むことを防止する目皿部材（６）であることを特徴とする、上記段落００１２乃至段落００１５のいずれか１つに記載の排水口の被覆部材である。
【００１７】
請求項５に記載の排水口の被覆部材は、上記排水口の被覆部材において、被覆部材が、排水中の塵芥を収集するストレーナー（７）であることを特徴とする、上記段落００１２乃至段落００１５のいずれか１つに記載の排水口の被覆部材である。
【００１８】
請求項８に記載の排水口の被覆部材は、上記排水口の被覆部材において、被覆部材が、使用時に排水口内の視界を制限する目隠部材（８）であることを特徴とする、上記段落００１２乃至段落００１５のいずれか１つに記載の排水口の被覆部材である。
【００１９】
【発明の実施の形態】
以下に、本発明の第一実施例を、図面を参照しつつ説明する。
図１乃至図５に示した本発明の第一実施例は、被覆部材として排水口（１）に目皿部材（６）を採用して成り、他に排水口（１）を有する排水装置、その他の部材より構成されてなる。
排水装置の排水口（１）は、防水パン等の底面に取り付けられた排水装置に設けられるものであって、円筒状にしてその内周面の複数箇所に突起部（２）を設けてなる。
被覆部材である目皿部材（６）は排水口（２）の排水口に備えられる、排水口（１）より多少小さな径を有する略円筒形状の部材で、円筒形状の上端から内方に向かって設けた上面部分には、排水を排水口（１）内に通すための複数のスリット部（９）を設けて成る。
また目皿部材（６）には、排水口（１）の突起部（２）と対応する位置に、下端まで解放され、排水口（１）の突起部（２）の横幅よりも多少幅広な横幅を有する縦溝部（３ａ）と、縦溝部（３ａ）の側面部に該縦溝部（３ａ）と連通して円弧方向に延設され、縦溝部（３ａ）近傍では縦幅が突起部（２）の縦幅よりも多少幅広で、連通する縦溝部（３ａ）から離れるほど縦幅が狭くなり突起部（２）と縦方向において嵌合するテーパー部（３ｃ）を備えた横溝部（３ｂ）と、より成る嵌合溝（３）を側面に設けてなる。
更に、目皿部材（６）の横溝部（３ｂ）には、横溝部（３ｂ）に沿って切欠部（５）が設けられており、横溝部（３ｂ）の下側壁部（４ａ）が多少の弾性を持つ弾性部分（４）となるように構成されている。
【００２０】
上記のように構成した目皿部材（６）を排水口（１）に取り付ける場合、まず目皿部材（６）の縦溝部（３ａ）を、平面視排水口（１）の突起部（２）に一致する位置に配置する。
次に縦溝部（３ａ）に沿って目皿部材（６）を降下させ、排水口（１）の突起部（２）を、縦溝部（３ａ）に、横溝部（３ｂ）の高さになるまで挿通させる。次に目皿部材（６）を横溝部（３ｂ）に沿って回転させると、横溝部（３ｂ）に設けられたテーパー部（３ｃ）によって、突起部（２）が通過している部分の横溝部（３ｂ）の縦幅が幅狭となり、最終的に突起部（２）と横溝部（３ｂ）が嵌合して目皿部材（６）が排水口（１）に取り付けられる。
この時、横溝部（３ｂ）に設けられた切欠部（５）によって、横溝部（３ｂ）の下側壁部（４ａ）には多少の弾性が備えられて弾性部分（４）として作用する。このため、複数箇所ある突起部（２）と嵌合溝（３）のどれか一カ所で充分な嵌合強度に到達した状態から、更に他の突起部（２）と嵌合溝（３）とが良好な状態になるまで目皿部材（６）を回転させたとしても、図３−（ｂ）の点線で示したように、横溝部（３ｂ）が縦方向に広がるため、最初に充分な嵌合強度に到達した突起部（２）及び嵌合溝（３）が必要以上に嵌合が行われて、脱着時に締まりすぎて脱着に不便であったり、或いは突起部（２）また嵌合溝（３）に破損が生じたりすることがなく、複数箇所の全てで良好な嵌合強度を得ることができる。
【００２１】
また、上記段落００１１に記載したように、横溝部（３ｂ）に微細な塵芥や砂が入り込んだ場合でも、弾性部分（４）となった横溝部（３ｂ）の下側壁部（４ａ）の弾性によって、横溝部（３ｂ）が上下に多少開くので、従来例のように解除不能になることがない。また、該切欠部（５）から、塵芥や砂粒が排水口（１）内に少しづつ排出されて、砂噛みの原因が無くなるので、砂噛みによる嵌合の解除不良の問題は更に容易に解決される。
【００２２】
次に、本発明の第二実施例を、図面を参照しつつ説明する。
図６乃至図８に示した本発明の第二実施例は、被覆部材として排水口（１）に目皿部材（６）を採用して成り、他に排水口（１）を有する排水装置、その他の部材より構成されてなる。
排水装置の排水口（１）は、防水パン等の底面に取り付けられた排水装置に設けられるものであって、円筒状にしてその内周面の複数箇所に突起部（２）を設けてなる。
被覆部材である目皿部材（６）は排水口（２）の排水口に備えられる、排水口（１）より多少小さな径を有する略円筒形状の部材で、円筒形状の上端から内方に向かって設けた上面部分には、排水を排水口（１）内に通すための複数のスリット部（９）を設けて成る。
また目皿部材（６）には、
排水口（１）の突起部（２）と対応する位置に、下端まで解放され、排水口（１）の突起部（２）の横幅よりも多少幅広な横幅を有する縦溝部（３ａ）と、
該縦溝部（３ａ）と連通して円弧方向に延設され、排水口（１）の突起部（２）の縦幅よりも多少幅広な縦幅を有した横溝部（３ｂ）と、
横溝部（３ｂ）の上壁から、横溝部（３ｂ）の有る下方に向かって突出された、部分的に横溝部（３ｂ）の縦幅を突起部（２）の縦幅とほぼ同一の幅とするための凸部（３ｄ）と、
より成る嵌合溝（３）を側面に設けてなる。
更に、目皿部材（６）の横溝部（３ｂ）には、側面視において凸部（３ｄ）下方に当たる位置を含む部分に、横溝部（３ｂ）に沿って切欠部（５）が設けられており、横溝部（３ｂ）の下側壁部（４ａ）が多少の弾性を持つ弾性部分（４）となるように構成されている。
【００２３】
上記のように構成した目皿部材（６）を排水口（２）に取り付ける場合、まず目皿部材（６）の縦溝部（３ａ）を、平面視排水口（１）の突起部（２）に一致する位置に配置する。
次に縦溝部（３ａ）に沿って目皿部材（６）を降下させ、排水口（１）の突起部（２）を、縦溝部（３ａ）に、横溝部（３ｂ）の高さになるまで挿通させる。次に目皿部材（６）を横溝部（３ｂ）に沿って、平面視突起部（２）の端部が横溝部（３ｂ）の凸部（３ｄ）と一致する位置まで回転させる。更に目皿部材（６）を回転させると、切欠部（５）によって下側壁部（４ａ）には多少の弾性が備えられて弾性部分（４）として作用するため、図８−（ｂ）の点線に示したように、横溝部（３ｂ）の縦幅が広がって、突起部（２）が凸部（３ｄ）を乗り越えて嵌合して目皿部材（６）が排水口（１）に取り付けられる。
この時、複数箇所ある突起部（２）と嵌合溝（３）のどれか一カ所で嵌合に到達した状態から、更に他の突起部（２）と嵌合溝（３）とが良好な状態になるまで目皿部材（６）を回転させたとしても、最初に充分な嵌合に到達した突起部（２）及び嵌合溝（３）が必要以上に嵌合が行われて、脱着時に締まりすぎて脱着に不便であったり、或いは突起部（２）また嵌合溝（３）に破損が生じたりすることがなく、複数箇所の全てで良好な嵌合強度を得ることができる。
【００２４】
また、上記段落００１１に記載したように、横溝部（３ｂ）に微細な塵芥や砂が入り込んだ場合でも、弾性部分（４）となった横溝部（３ｂ）の下側壁部（４ａ）の弾性によって、横溝部（３ｂ）が上下に多少開くので、従来例のように解除不能になることがない。また、該切欠部（５）から、塵芥や砂粒が排水口（２）内に少しづつ排出されて、砂噛みの原因が無くなるので、砂噛みによる嵌合の解除不良の問題は更に容易に解決される。
【００２５】
次に、本発明の第三実施例を、図面を参照しつつ説明する。
図９乃至図１０に示した本発明の第三実施例は、被覆部材として排水口（１）に目皿部材を採用して成り、他に排水口（１）を有する排水装置、その他の部材より構成されてなる。
防水パン等の底面に取り付けられた排水装置に設けられるものであって、円筒状にしてその内周面の複数箇所に、ゴムなどの弾性材よりなる突起部（２）を設けてなる。
被覆部材である目皿部材（６）は排水口（２）の排水口に備えられる、排水口（１）より多少小さな径を有する略円筒形状の部材で、円筒形状の上端から内方に向かって設けた上面部分には、排水を排水口（１）内に通すための複数のスリット部（９）を設けて成る。
また目皿部材（６）には、排水口（１）の突起部（２）と対応する位置に、下端まで解放され、排水口（１）の突起部（２）の横幅よりも多少幅広な横幅を有する縦溝部（３ａ）と、縦溝部（３ａ）の側面部に該縦溝部（３ａ）と連通して円弧方向に延設され、縦溝部（３ａ）近傍では縦幅が突起部（２）の縦幅よりも多少幅広で、連通する縦溝部（３ａ）から離れるほど縦幅が狭くなり突起部（２）と縦方向において嵌合するテーパー部（３ｃ）を備えた横溝部（３ｂ）と、より成る嵌合溝（３）を側面に設けてなる。
【００２６】
上記のように構成した目皿部材（６）を排水口（２）に取り付ける場合、まず目皿部材（６）の縦溝部（３ａ）を、平面視排水口（１）の突起部（２）に一致する位置に配置する。
次に縦溝部（３ａ）に沿って目皿部材（６）を降下させ、排水口（１）の突起部（２）を、縦溝部（３ａ）に、横溝部（３ｂ）の高さになるまで挿通させる。次に目皿部材（６）を横溝部（３ｂ）に沿って回転させると、横溝部（３ｂ）に設けられたテーパー部（３ｃ）によって、突起部（２）が通過している部分の横溝部（３ｂ）の縦幅が幅狭となり、最終的に突起部（２）と横溝部（３ｂ）が嵌合して目皿部材（６）が排水口（１）に取り付けられる。
この時、突起部（２）はゴムなどの弾性材より構成されて弾性部分（４）となっているため、複数箇所ある突起部（２）と嵌合溝（３）のどれか一カ所で充分な嵌合強度に到達した状態から、更に他の突起部（２）と嵌合溝（３）とが良好な状態になるまで目皿部材（６）を回転さたとしても、最初に充分な嵌合強度に到達した突起部（２）及び嵌合溝（３）が必要以上に嵌合が行われて、脱着時に締まりすぎて脱着に不便であったり、或いは突起部（２）また嵌合溝（３）に破損が生じたりすることがなく、複数箇所の全てで良好な嵌合強度を得ることができる。
【００２７】
また、上記段落００１１に記載した従来例のように、横溝部（３ｂ）に微細な塵芥や砂が入り込んだ場合でも、突起部（２）の弾性によって突起部（２）と横溝部（３ｂ）の間が多少確保できるので、従来例のように、解除不能になることがない。
【００２８】
本発明の実施例は上記のようであるが、本発明は上記実施例に限定されるものではなく、要旨を変更しない範囲で様々に変更が可能である。
例えば上記第一実施例乃至第三実施例においては、被覆部材を目皿部材（６）としているが、図１１に示したように、被覆部材を、排水中の塵芥を捕集するストレーナー（７）や、図１２に示したように、排水口（２）内のストレーナー（７）などを直視しないようにする目隠部材（８）としても良い。
【００２９】
また、図１３に示した実施例のように、上記被覆部材において、嵌合溝（３）の形状に、テーパー部（３ｃ）と凸部（３ｄ）を組み合わせた構造を採用しても良好な結果を得ることができる。
【００３０】
なお、上記実施例においては、突起部（２）と嵌合溝（３）の数を同じ数とした構成としているが、本発明は上記実施例に限定される物ではなく、図１４乃至図１６に示したように突起部（２）よりも嵌合溝（３）が多い、または図示しないが、嵌合溝（３）よりも突起部（２）が多い、とした構成としてもよい。上記のように突起部（２）と嵌合溝（３）の数が相違しても、突起部（２）に対応した位置に嵌合溝（３）が配置されていれば、本発明による排水口の被覆部材は何ら問題なく利用することができる。
【００３１】
【効果】
本発明は上記のように構成したため、以下のような優れた効果を奏する。
１）目皿部材、ストレーナー、目隠部材などの排水口の被覆部材において、横溝部又は突起部に弾性を備えたため、各部の嵌合を、複数設けた嵌合溝の全ての箇所で同時に良好な状態にすることができ、また砂噛み現象が発生しても容易に嵌合を解除することができる。
２）請求項１に記載した、横溝部に切欠部を設けた排水口の被覆部材の嵌合構造においては、砂噛みが発生した場合に、切欠部から砂噛みの原因である微細な塵芥や砂粒が排出されるため、砂噛みが発生しても特に良好に嵌合の解除を行うことができる。
【図面の簡単な説明】
【図１】本発明の第一実施例の目皿部材の斜視図である。
【図２】本発明の第一実施例による、排水口を有する排水装置と目皿部材の部材構成を示す斜視図である。
【図３】本発明の第一実施例による目皿部材の、（ａ）平面図（ｂ）側面図、である。
【図４】図３に示した目皿部材のＡ−Ａ’断面図、及び排水口の断面図である。
【図５】図４に示した排水口及び目皿部材の、嵌合状態を示す断面図である。
【図６】本発明の第二実施例の目皿部材の斜視図である。
【図７】本発明の第二実施例による、排水口を有する排水装置と目皿部材の部材構成を示す斜視図である。
【図８】本発明の第二実施例による目皿部材の、（ａ）平面図（ｂ）側面図、である。
【図９】本発明の第三実施例による、目皿部材の断面図及び排水口の断面図である。
【図１０】図９に示した排水口及び目皿部材の、嵌合状態を示す断面図である。
【図１１】本発明をストレーナーに採用した実施例を示す斜視図である。
【図１２】本発明を目隠部材に採用した実施例を示す斜視図である。
【図１３】本発明の嵌合溝と凸部を組み合わせた実施例による目皿部材の、（ａ）平面図（ｂ）側面図、である。
【図１４】本発明の嵌合溝より突起部の方が多い実施例による、排水口を有する排水装置と目皿部材の部材構成を示す斜視図である。
【図１５】図１４の実施例による目皿部材の断面図、及び排水口の断面図である。
【図１６】図１５に示した排水口及び目皿部材の、嵌合状態を示す断面図である。
【図１７】従来の排水口を有する排水装置と目皿部材の部材構成を示す斜視図である。
【図１８】従来の目皿部材の、（ａ）平面図（ｂ）側面図、である。
【図１９】従来の目皿部材のＢ−Ｂ’断面図、及び排水口の断面図である。
【図２０】図１９に示した排水口及び目皿部材の、嵌合状態を示す断面図である。
【図２１】従来のストレーナーを示す斜視図である。
【図２２】従来の目隠部材を示す斜視図である。
【符号の説明】
１排水口
２突起部
３嵌合溝
３ａ縦溝部
３ｂ横溝部
３ｃテーパー部
３ｄ凸部
４弾性部分
４ａ下側壁部
５切欠部
６目皿部材
７ストレーナー
８目隠部材
９スリット部[0001]
BACKGROUND OF THE INVENTION
The present invention is attached to the drain outlet of a drainage device that drains water in various drainage devices that generate drainage by use, such as basins such as washstands and sinks, waterproof pans used in bathrooms and washing machines, etc. It is a thing regarding a covering member.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, drainage devices that drain water are used in various drainage devices that generate drainage by use, such as tank bodies such as washstands and sinks, and waterproof pans used in bathrooms and washing machines.
[0003]
The drainage device shown in FIG. 17 is an example thereof, and shows a drainage device called a drain trap having a function of preventing odors and pests from entering from the sewage side.
[0004]
By the way, since the drainage water is already used for some reason, for example, if it is drainage used for washing dishes, etc. in the sink, cooking scraps, etc., should also be drainage used for washing hair in the sink. In most cases, hair and the like are mixed in each case. If these are discharged as they are from the drain to the sewage side, there is a problem such as clogging of these dusts in the sewage pipe, resulting in clogging of the pipe. Therefore, a drain plate of a normal drainage device is provided with a slit so that dust larger than a certain size in the drainage does not enter the drain port, and a bottomed cylindrical member that prevents the entry of large dust Then, the side surface and the bottom surface are knitted, and a strainer or the like for collecting dust, hair, etc. in the drainage is disposed. In addition, if the strainer is used as described above, the user of the tank body feels uncomfortable by directly looking at the dust in the strainer, so that drainage is performed and the strainer in the drain outlet is not directly viewed. A blindfold member called a drainage plate is often arranged. As described above, in most cases, a covering member attached to the drain port, such as an eye plate member, a strainer, or a blind member, is used for the drain port of the drainage device.
[0005]
There are various ways of attaching the covering member of the drainage port to the drainage port. For example, in the case of the strainer shown in FIG. 21, the flange provided on the periphery of the opening of the strainer is placed on the opening of the drainage device. Installation is in progress. Further, in the case of the blindfold member shown in FIG. 22, the outer edge of the blindfold member is loosely fitted in the vicinity of the opening of the drainage port to be attached to the drainage port.
[0006]
On the other hand, in the case of the eye plate member, it is often attached by a strong fitting method as described below. Hereinafter, each member used for attachment and an example of the attachment method will be described with reference to the drawings.
The drainage port covering member, usually referred to as the eye plate member, shown in FIGS. 17 to 20 has a structure described below, and is detachably attached to the drainage port by the method shown in paragraph 0007.
The drainage port of the drainage device is formed on the bottom surface portion of the tank body, and is formed in a cylindrical shape with protrusions at a plurality of locations on the inner peripheral surface thereof.
The eye plate member, which is a covering member, is a substantially cylindrical member having a slightly smaller diameter than the drain port provided at the drain port of the drainage device. Are provided with a plurality of slit portions for passing the water through the drain outlet.
Further, the eye plate member is opened to the lower end at a position corresponding to the protruding portion of the drain port, and has a vertical groove portion having a width slightly wider than the horizontal width of the protruding portion of the drain port, and the vertical groove portion on the side surface portion of the vertical groove portion. Communicating with the groove and extending in the arc direction, the vertical width is somewhat wider than the vertical width of the protrusion in the vicinity of the vertical groove, and the vertical width becomes narrower as the distance from the connecting vertical groove decreases, and the protrusion is fitted in the vertical direction. A lateral groove portion having a tapered portion and a fitting groove comprising the tapered portion are provided on the side surface.
[0007]
When attaching the eye plate member configured as described above to the drain port, first, the longitudinal groove portion of the eye plate member is disposed at a position that coincides with the projection of the drain port in plan view.
Next, the eye plate member is lowered along the vertical groove portion, and the protrusion of the drain outlet is inserted into the vertical groove portion until the height of the horizontal groove portion is reached. Next, when the eye plate member is rotated along the horizontal groove portion, the vertical width of the horizontal groove portion of the portion through which the protruding portion passes is narrowed by the tapered portion provided in the horizontal groove portion, and finally the protruding portion and The horizontal groove is fitted and the eye plate member is attached to the drain outlet.
[0008]
[Problems to be solved by the invention]
By the way, in the covering member provided with the fitting groove like the eye plate member shown in the above paragraphs 0006 to 0007, there is always a problem in the balance of the strength of fitting.
[0009]
That is, in the attachment structure of the drain port and the covering member, a plurality of protrusions and fitting grooves such as two to four are usually provided due to the problem of the balance of attachment. For this reason, even if an appropriate fitting strength is obtained at any one location, the fitting strength may not yet reach a sufficient state at other locations. In such a case, it is desirable to rotate the covering member until an appropriate fitting strength is obtained also in the remaining protrusions and fitting grooves, but in that case, the place where the fitting strength is already good is There is a problem that fitting is performed more than necessary, and it is too tight at the time of attachment / detachment, which is inconvenient for attachment / detachment, or damage is caused to the protrusion or the fitting groove.
[0010]
If the dimensions of the projections of the drain outlets and the fitting grooves of the countersink members are exactly the same at all locations, the above problems will not occur. Because it is mass-produced by resin molding using a mold, there are differences in the shrinkage rate of the resin depending on the molding conditions, etc. In fact, it is impossible for all to be equal. For this reason, by setting the fitting of the drain port and the covering member weakly as a whole, it is avoided that the fitting becomes impossible, but in this case, the covering member is detached from the drain port at the time of transportation or use. Problem arises.
[0011]
Furthermore, in the case of the drain outlet covering member as described above, a problem called sand biting occurs.
As described above, since the wastewater flowing into the drainage port is used sewage, fine dust or sand particles are often mixed therein. If they enter the fitting part of the projection and the fitting groove of the covering member attached to the drain port, even if trying to release the fitting of both, these fine dust and sand particles get in between them. However, the balance of the fitting, which is made up of a delicate balance, will be lost, and it will not be possible to release or remove the fitting, but the fitting will be tightened more than necessary, making it difficult to remove and damage, and the member will be damaged or damaged. May occur.
The present invention has been invented in view of the above problems, and is a drainage cover member using a projection and a fitting groove, which can solve the problems of fitting distortion and sand biting. Is to provide.
[0012]
[Means for Solving the Problems]
The covering member of the drain port according to claim 1 is a cylindrical drain port (1) provided with a plurality of protrusions (2) on the inner peripheral surface for draining the tank body, and the drain port (1). A vertical groove (3a) having a width that is slightly wider than the width of the protrusion (2) of the drain port (1) and that is open to the lower end. It communicates with the groove (3a) and extends in the arc direction. The vertical width is slightly wider than the vertical width of the protrusion (2) in the vicinity of the vertical groove (3a), and the vertical length increases as the distance from the communicating vertical groove (3a) increases. A substantially cylindrical covering member provided on the side surface with a fitting groove (3) comprising a lateral groove (3b) having a tapered portion (3c) which is narrow in width and fitted to the protrusion (2) in the longitudinal direction; In the covering member of the drainage outlet constituted by the elastic part for appropriately adjusting the fitting strength to the protrusion (2) or the fitting groove (3) 4) comprising a, and the elastic part (4), is given an elastic by providing the cutout portion along the lateral groove portion (3b) (5), and a lower wall portion of the lateral groove portion (3b) (4a) It is the covering member of the drain outlet characterized by this.
[0013]
The covering member of the drain port according to claim 2 is a cylindrical drain port (1) provided with a plurality of protrusions (2) on the inner peripheral surface for draining the tank body, and the drain port (1). A vertical groove (3a) having a width that is slightly wider than the width of the protrusion (2) of the drain port (1) and that is open to the lower end. A lateral groove portion (3b) and a lateral groove portion (3b) which communicate with the groove portion (3a) and extend in the arc direction and have a vertical width which is slightly wider than the vertical width of the projection portion (2) of the drain port (1). A fitting groove comprising a convex part (3d) protruding from the upper wall or the lower wall of the projecting part (3d) for making the vertical width of the lateral groove part (3b) slightly narrower than the vertical width of the projecting part (2) A portion including the projection (2) or the convex portion (3d) of the lateral groove portion (3b) in the covering member of the drainage port comprising the substantially cylindrical covering member provided on the side surface (3) To the intensity of the fitting with the right adjustable elastic portion (4), and a resilient portion (4), is given an elastic by providing the cutout portion along the lateral groove portion (3b) (5), A drain outlet covering member characterized by having a lower side wall portion (4a) of a lateral groove portion (3b) .
[0015]
The covering member for a drain outlet according to claim 3 is characterized in that the elastic portion (4) is provided by forming the protruding portion (2) with an elastic material. It is a covering member of the drain outlet.
[0016]
The covering member of the drain port according to claim 4 is the eye plate member (6) for preventing the dust of a certain size or more from flowing into the drain port in the covering member of the drain port. The drainage cover member according to any one of paragraphs 0012 to 0015, characterized in that:
[0017]
The covering member of the drain port according to claim 5 is characterized in that, in the covering member of the drain port, the covering member is a strainer (7) for collecting dust in the drainage. It is the covering member of the drain outlet as described in any one of these.
[0018]
9. The drain port covering member according to claim 8 , wherein in the drain port covering member, the covering member is a blind member (8) that restricts the field of view in the drain port during use. The drain outlet covering member according to any one of paragraphs 0012 to 0015.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Below, the 1st example of the present invention is described, referring to drawings.
The first embodiment of the present invention shown in FIGS. 1 to 5 is a drainage device having a drainage port (1) as a covering member, and having a drainage port (1). It consists of other members.
The drainage port (1) of the drainage device is provided in a drainage device attached to the bottom surface of a waterproof pan or the like, and is formed in a cylindrical shape with protrusions (2) at a plurality of locations on its inner peripheral surface. .
The eye plate member (6), which is a covering member, is a substantially cylindrical member having a slightly smaller diameter than the drain port (1) provided in the drain port of the drain port (2), and is directed inward from the upper end of the cylindrical shape. The upper surface provided is provided with a plurality of slit portions (9) for allowing drainage to pass through the drain port (1).
The eye plate member (6) is released to the lower end at a position corresponding to the projection (2) of the drain port (1), and is slightly wider than the lateral width of the projection (2) of the drain port (1). A longitudinal groove portion (3a) having a lateral width, and a side surface portion of the longitudinal groove portion (3a), which communicates with the longitudinal groove portion (3a) and extends in an arc direction, has a longitudinal width in the vicinity of the longitudinal groove portion (3a) and a protrusion portion (2 ) And a lateral groove portion (3b) provided with a taper portion (3c) that fits in the longitudinal direction with the protrusion portion (2) being narrower as the distance from the communicating vertical groove portion (3a) is smaller. And a fitting groove (3) formed on the side surface.
Further, the horizontal groove part (3b) of the countersink member (6) is provided with a notch (5) along the horizontal groove part (3b), and the lower side wall part (4a) of the horizontal groove part (3b) is somewhat It is comprised so that it may become the elastic part (4) which has the elasticity of.
[0020]
When attaching the eye plate member (6) configured as described above to the drain port (1), first, the longitudinal groove portion (3a) of the eye plate member (6) is formed on the projection (2) of the drain port (1) in plan view. Place it at a position that matches
Next, the eye plate member (6) is lowered along the longitudinal groove (3a), and the protrusion (2) of the drain port (1) is placed at the height of the lateral groove (3b) in the longitudinal groove (3a). Until it is inserted. Next, when the eye plate member (6) is rotated along the horizontal groove portion (3b), the taper portion (3c) provided in the horizontal groove portion (3b) causes the horizontal groove of the portion through which the protruding portion (2) passes. The vertical width of the portion (3b) becomes narrower, and finally the projection (2) and the lateral groove (3b) are fitted to attach the eye plate member (6) to the drain port (1).
At this time, the lower wall portion (4a) of the lateral groove portion (3b) is provided with some elasticity by the notch portion (5) provided in the lateral groove portion (3b) and acts as an elastic portion (4). For this reason, from the state where sufficient fitting strength is reached at any one of the plurality of protruding portions (2) and the fitting groove (3), another protruding portion (2) and the fitting groove (3) are further provided. Even if the countersink member (6) is rotated until the state becomes favorable, the horizontal groove (3b) spreads in the vertical direction as shown by the dotted line in FIG. The protrusion (2) and the fitting groove (3) that have reached a sufficient fitting strength are fitted more than necessary, and it is too tight at the time of detachment, which is inconvenient for detachment, or the protrusion (2) or fitting The fitting groove (3) is not damaged, and good fitting strength can be obtained at all of a plurality of locations.
[0021]
In addition, as described in paragraph 0011 above, even when fine dust or sand enters the lateral groove portion (3b), the elasticity of the lower side wall portion (4a) of the lateral groove portion (3b) that has become the elastic portion (4). Therefore, the lateral groove (3b) is slightly opened up and down, so that it cannot be released as in the conventional example. In addition, dust and sand particles are gradually discharged from the notch (5) into the drain port (1), and the cause of sand biting is eliminated. Is done.
[0022]
Next, a second embodiment of the present invention will be described with reference to the drawings.
The second embodiment of the present invention shown in FIG. 6 to FIG. 8 is a drainage device comprising a drainage plate (1) as a covering member and a drainage plate (1). It consists of other members.
The drainage port (1) of the drainage device is provided in a drainage device attached to the bottom surface of a waterproof pan or the like, and is formed in a cylindrical shape with protrusions (2) at a plurality of locations on its inner peripheral surface. .
The eye plate member (6), which is a covering member, is a substantially cylindrical member having a slightly smaller diameter than the drain port (1) provided in the drain port of the drain port (2), and is directed inward from the upper end of the cylindrical shape. The upper surface provided is provided with a plurality of slit portions (9) for allowing drainage to pass through the drain port (1).
The eye plate member (6) has
A vertical groove (3a) having a width that is released to the lower end at a position corresponding to the protrusion (2) of the drain (1) and is slightly wider than the width of the protrusion (2) of the drain (1);
A lateral groove portion (3b) that communicates with the longitudinal groove portion (3a) and extends in the arc direction, and has a longitudinal width that is slightly wider than the longitudinal width of the projection portion (2) of the drain port (1);
Projected from the upper wall of the lateral groove portion (3b) downward with the lateral groove portion (3b), the width of the lateral groove portion (3b) is partially the same as the vertical width of the projection portion (2). A convex portion (3d) for
A fitting groove (3) is provided on the side surface.
Further, the lateral groove portion (3b) of the eye plate member (6) is provided with a notch portion (5) along the lateral groove portion (3b) at a portion including a position that contacts the lower portion of the convex portion (3d) in a side view. The lower wall portion (4a) of the lateral groove portion (3b) is configured to be an elastic portion (4) having some elasticity.
[0023]
When attaching the eye plate member (6) configured as described above to the drain port (2), first, the longitudinal groove (3a) of the eye plate member (6) is formed on the projection (2) of the drain port (1) in plan view. Place it at a position that matches
Next, the eye plate member (6) is lowered along the longitudinal groove (3a), and the protrusion (2) of the drain port (1) is placed at the height of the lateral groove (3b) in the longitudinal groove (3a). Until it is inserted. Next, the eye plate member (6) is rotated along the lateral groove (3b) to a position where the end of the projection (2) in plan view coincides with the convex portion (3d) of the lateral groove (3b). When the eye plate member (6) is further rotated, the lower wall portion (4a) is provided with some elasticity by the notch portion (5) and acts as an elastic portion (4). As shown by the dotted line, the vertical width of the lateral groove portion (3b) widens, the projection portion (2) gets over the convex portion (3d), and the eye plate member (6) fits into the drain port (1). It is attached.
At this time, the other protrusion (2) and the fitting groove (3) are more favorable from the state where the fitting is reached at any one of the plurality of protrusions (2) and the fitting groove (3). Even if the countersunk member (6) is rotated until it reaches a certain state, the protrusion (2) and the fitting groove (3) that have reached sufficient fitting first are fitted more than necessary, It is possible to obtain a good fitting strength at all of the plurality of places without being excessively tightened at the time of attachment / detachment and inconvenient for attachment / detachment, or damage to the protrusion (2) or the fitting groove (3). .
[0024]
In addition, as described in paragraph 0011 above, even when fine dust or sand enters the lateral groove portion (3b), the elasticity of the lower side wall portion (4a) of the lateral groove portion (3b) that has become the elastic portion (4). Therefore, the lateral groove (3b) is slightly opened up and down, so that it cannot be released as in the conventional example. In addition, dust and sand particles are gradually discharged from the notch (5) into the drain port (2), and the cause of sand bite is eliminated. Is done.
[0025]
Next, a third embodiment of the present invention will be described with reference to the drawings.
The third embodiment of the present invention shown in FIG. 9 to FIG. 10 is a drainage device having other drainage ports (1), and other members, which are formed by adopting a plate member at the drainage port (1) as a covering member. It consists of.
It is provided in a drainage device attached to the bottom surface of a waterproof pan or the like, and has a cylindrical shape and is provided with protrusions (2) made of an elastic material such as rubber at a plurality of locations on its inner peripheral surface.
The eye plate member (6), which is a covering member, is a substantially cylindrical member having a slightly smaller diameter than the drain port (1) provided in the drain port of the drain port (2), and is directed inward from the upper end of the cylindrical shape. The upper surface provided is provided with a plurality of slit portions (9) for allowing drainage to pass through the drain port (1).
The eye plate member (6) is released to the lower end at a position corresponding to the projection (2) of the drain port (1), and is slightly wider than the lateral width of the projection (2) of the drain port (1). A longitudinal groove portion (3a) having a lateral width, and a side surface portion of the longitudinal groove portion (3a), which communicates with the longitudinal groove portion (3a) and extends in an arc direction, has a longitudinal width in the vicinity of the longitudinal groove portion (3a) and a protrusion portion (2 ) And a lateral groove portion (3b) provided with a taper portion (3c) that fits in the longitudinal direction with the protrusion portion (2) being narrower as the distance from the communicating vertical groove portion (3a) is smaller. And a fitting groove (3) formed on the side surface.
[0026]
When attaching the eye plate member (6) configured as described above to the drain port (2), first, the longitudinal groove (3a) of the eye plate member (6) is formed on the projection (2) of the drain port (1) in plan view. Place it at a position that matches
Next, the eye plate member (6) is lowered along the longitudinal groove (3a), and the protrusion (2) of the drain port (1) is placed at the height of the lateral groove (3b) in the longitudinal groove (3a). Until it is inserted. Next, when the eye plate member (6) is rotated along the horizontal groove portion (3b), the taper portion (3c) provided in the horizontal groove portion (3b) causes the horizontal groove of the portion through which the protruding portion (2) passes. The vertical width of the portion (3b) becomes narrower, and finally the projection (2) and the lateral groove (3b) are fitted to attach the eye plate member (6) to the drain port (1).
At this time, since the protrusion (2) is made of an elastic material such as rubber and becomes an elastic portion (4), the protrusion (2) is located at any one of the protrusion (2) and the fitting groove (3). Even if the countersink member (6) is rotated from the state where the sufficient fitting strength is reached until the other protrusion (2) and the fitting groove (3) are in a good state, it is sufficient at first. The protrusion (2) and the fitting groove (3) that have reached a sufficient fitting strength are fitted more than necessary, and it is too tight at the time of detachment, which is inconvenient for detachment, or the protrusion (2) or fitting The fitting groove (3) is not damaged, and good fitting strength can be obtained at all of a plurality of locations.
[0027]
Further, as in the conventional example described in paragraph 0011 above, even when fine dust or sand enters the lateral groove portion (3b), the protrusion portion (2) and the lateral groove portion (3b) are caused by the elasticity of the protrusion portion (2). Since a certain interval can be secured, it is not impossible to release the gap as in the conventional example.
[0028]
The embodiments of the present invention are as described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.
For example, in the first embodiment to the third embodiment, the covering member is the eye plate member (6). However, as shown in FIG. 11, the covering member is a strainer (7 ), Or as shown in FIG. 12, a blindfold member (8) that does not directly look at the strainer (7) in the drain outlet (2) may be used.
[0029]
Further, as in the embodiment shown in FIG. 13, it is also good to employ a structure in which the shape of the fitting groove (3) is a combination of the tapered portion (3c) and the convex portion (3d) in the covering member. The result can be obtained.
[0030]
In the above embodiment, the same number of protrusions (2) and fitting grooves (3) are used. However, the present invention is not limited to the above embodiment, and FIG. 14 to FIG. As shown in FIG. 16, the number of fitting grooves (3) may be larger than that of the protrusions (2), or the number of protrusions (2) may be larger than that of the fitting grooves (3). Even if the number of the projections (2) and the fitting grooves (3) is different as described above, if the fitting grooves (3) are arranged at positions corresponding to the projections (2), the present invention The covering member for the drain port can be used without any problem.
[0031]
【effect】
Since this invention was comprised as mentioned above, there exist the following outstanding effects.
1) In the drain outlet covering member such as eye plate member, strainer, blindfold member, etc., because the horizontal groove part or protrusion part has elasticity, the fitting of each part is good at all locations of the plurality of fitting grooves provided at the same time In addition, even if a sand biting phenomenon occurs, the fitting can be easily released.
2) In the fitting structure of the drain outlet covering member provided with the notch portion in the lateral groove portion described in claim 1, when sand biting occurs, the fine dust that causes sand biting from the notch portion or Since the sand particles are discharged, even when sand biting occurs, the fitting can be released particularly well.
[Brief description of the drawings]
FIG. 1 is a perspective view of an eye plate member according to a first embodiment of the present invention.
FIG. 2 is a perspective view showing a member configuration of a drainage device having a drainage outlet and an eye plate member according to the first embodiment of the present invention.
3A is a plan view of the eye plate member according to the first embodiment of the present invention, and FIG.
4 is a cross-sectional view taken along line AA ′ of the eye plate member shown in FIG. 3 and a cross-sectional view of a drain outlet. FIG.
5 is a cross-sectional view showing a fitting state of the drain port and the eye plate member shown in FIG. 4;
FIG. 6 is a perspective view of an eye plate member according to a second embodiment of the present invention.
FIG. 7 is a perspective view showing a member configuration of a drainage device having a drainage outlet and a countersunk member according to a second embodiment of the present invention.
FIGS. 8A and 8B are (a) a plan view and (b) a side view, respectively, of an eye plate member according to a second embodiment of the present invention.
FIG. 9 is a cross-sectional view of a countersink member and a cross-sectional view of a drain outlet according to a third embodiment of the present invention.
10 is a cross-sectional view showing a fitting state of the drain port and the eye plate member shown in FIG. 9;
FIG. 11 is a perspective view showing an embodiment in which the present invention is employed in a strainer.
FIG. 12 is a perspective view showing an embodiment in which the present invention is adopted for a blindfold member.
FIGS. 13A and 13B are (a) a plan view and (b) a side view, respectively, of an eye plate member according to an embodiment combining the fitting groove and the convex portion of the present invention.
FIG. 14 is a perspective view showing a member configuration of a drainage device having a drainage outlet and an eye plate member according to an embodiment having more projections than fitting grooves according to the present invention.
FIG. 15 is a cross-sectional view of an eye plate member according to the embodiment of FIG. 14 and a cross-sectional view of a drain outlet.
16 is a cross-sectional view showing a fitting state of the drain port and the eye plate member shown in FIG.
FIG. 17 is a perspective view showing a member configuration of a drainage device having a conventional drainage port and a pan plate member.
18A is a plan view of a conventional eye plate member, and FIG. 18B is a side view thereof.
FIG. 19 is a cross-sectional view taken along the line BB ′ of a conventional eye plate member and a cross-sectional view of a drain outlet.
20 is a cross-sectional view showing a fitting state of the drain port and the eye plate member shown in FIG.
FIG. 21 is a perspective view showing a conventional strainer.
FIG. 22 is a perspective view showing a conventional blindfold member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Drain port 2 Protrusion part 3 Fitting groove 3a Vertical groove part 3b Horizontal groove part 3c Tapered part 3d Convex part 4 Elastic part 4a Lower side wall part 5 Notch part 6 Eye plate member 7 Strainer 8 Blind part 9 Slit part

Claims

A cylindrical drainage port (1) for draining the tank body, provided with a plurality of protrusions (2) on the inner peripheral surface;
A vertical groove (at a position corresponding to the protrusion (2) of the drain port (1), having a width slightly wider than the width of the protrusion (2) of the drain port (1) and released to the lower end ( 3a), which communicates with the longitudinal groove portion (3a) and extends in the arc direction, and in the vicinity of the longitudinal groove portion (3a), the longitudinal width is slightly wider than the longitudinal width of the protrusion (2), and communicates with the longitudinal groove portion (3a). A substantially cylindrical shape having a fitting groove (3) formed on the side surface of the lateral groove portion (3b) having a taper portion (3c) fitted to the projection portion (2) in the longitudinal direction. A shaped covering member;
In the drainage covering member composed of
The protrusion (2) or the fitting groove (3) is provided with an elastic portion (4) for appropriately adjusting the strength of fitting , and the elastic portion (4) is cut along the lateral groove (3b) ( 5) A drain outlet covering member characterized in that the lower wall portion (4a) of the lateral groove portion (3b) is provided with elasticity by providing .

A cylindrical drainage port (1) for draining the tank body, provided with a plurality of protrusions (2) on the inner peripheral surface;
A vertical groove (at a position corresponding to the protrusion (2) of the drain port (1), having a width slightly wider than the width of the protrusion (2) of the drain port (1) and released to the lower end ( 3a), a lateral groove portion (3b) that communicates with the longitudinal groove portion (3a) and extends in the arc direction and has a longitudinal width that is slightly wider than the longitudinal width of the projection portion (2) of the drain port (1), A convex portion (3d) protruding from the upper wall or the lower wall of the lateral groove portion (3b), for partially making the vertical width of the horizontal groove portion (3b) slightly narrower than the vertical width of the projection portion (2), A substantially cylindrical covering member provided on the side surface with a fitting groove (3) comprising:
In the drainage covering member composed of
The portion including the protrusion (3d) of the protrusion (2) or the lateral groove (3b) is provided with an elastic portion (4) for appropriately adjusting the fitting strength, and the elastic portion (4) is provided with the lateral groove ( A drainage outlet covering member characterized in that the lower wall part (4a) of the lateral groove part (3b) is provided with elasticity by providing a notch part (5) along 3b) .

The drainage cover member according to claim 1 , wherein the elastic portion (4) is provided by forming the protrusion (2) with an elastic material.

The said covering member of the said drain outlet WHEREIN: The covering member is a countersink member (6) which prevents that the dust of a fixed magnitude | size flows into a drain outlet, The said Claim 1 thru | or 3 characterized by the above-mentioned. The drain outlet covering member according to any one of the above.

The drainage port covering member according to any one of claims 1 to 3 , wherein the drainage port covering member is a strainer (7) that collects dust in the drainage. Covering member.

The said covering member of the said drain outlet WHEREIN: A covering member is a blindfold member (8) which restrict | limits the visual field in a drain outlet at the time of use, The said any one of Claim 1 thru | or 3 characterized by the above-mentioned. Covering member for drainage.