JP4243088B2 - Temporary cap for piping - Google Patents

Temporary cap for piping Download PDF

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Publication number
JP4243088B2
JP4243088B2 JP2002319937A JP2002319937A JP4243088B2 JP 4243088 B2 JP4243088 B2 JP 4243088B2 JP 2002319937 A JP2002319937 A JP 2002319937A JP 2002319937 A JP2002319937 A JP 2002319937A JP 4243088 B2 JP4243088 B2 JP 4243088B2
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Japan
Prior art keywords
pipe
cap
end plate
cap body
cylindrical portion
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JP2002319937A
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Japanese (ja)
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JP2004156633A (en
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博幸 日岐
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Maezawa Kasei Kogyo KK
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Maezawa Kasei Kogyo KK
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Priority to JP2002319937A priority Critical patent/JP4243088B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、排水管などの管材の配管に際し、配管途中の管材の端面を保護するために用いる配管用仮止めキャップに関する。
【0002】
【従来の技術】
従来、排水管などの管材を配管する際には、配管工事の際に管材の端面開口部から前記管材内部にごみなどが混入することを防ぎ、また、管材の配管端面の破損や損傷を防止するため、配管用仮止めキャップを前記管材の配管端部に嵌着している。
【0003】
そして、従来の配管用仮止めキャップは、管材の配管端部の内周部または外周部にキャップ本体の円筒部を嵌合し、この円筒部の端面に形成した端板部で管材の配管端面を覆う構成となっている(例えば、特許文献1参照。)。
【0004】
また、従来、配管用仮止めキャップは、管材の配管端部の内周部にキャップ本体の円筒部を嵌合し、この円筒部の一端部の外周縁部から径方向に突設したフランジ部によって管材の配管端面を覆い、この円筒部の外面部の略中心部近傍に取手部を突設した構成が採られている(例えば、特許文献2参照。)。
【0005】
【特許文献1】
実開昭57−25295号公報(第2頁、第2図、第3図)
【0006】
【特許文献2】
実開昭54−129819号公報(第1頁、第1図および第2図)
【0007】
【発明が解決しようとする課題】
しかし、上記特許文献1に示す、管材の配管端部の外周部にキャップ本体の円筒部を嵌合する配管用仮止めキャップでは、前記配管用仮止めキャップの外径は前記管材の配管端部の外径よりも大きくなり、したがって、前記配管用仮止めキャップを装着した状態での前記管材の配管端面側のみかけの外径は、前記管材の外径よりも大きくなる。このため、住宅などの建築物の床面に管材挿通用の挿通孔を開口して前記管材を挿通配管する場合、前記挿通孔は誤って前記配管用仮止めキャップの外径に合わせて開口することがあり、そのため前記挿通孔は前記管材の外径よりも大きくなり、床面の外観を損ねるという問題があり、また、梱包時において、複数の配管用仮止めキャップを重ね合わせて係合させることができず、さらに、キャップ本体の端板部に取手部を形成すると取手部が嵩張り、包装が大型となって梱包が不経済になるという問題があった。
【0008】
また、上記文献1に示す、管材の配管端部の内周部に円筒部を嵌合する配管用仮止めキャップもキャップ本体の重ね合わせて係合することができず、また、取手部も簡単に設けることができなかった。
【0009】
また、上記特許文献2に示す、キャップ本体の取手部を有する前記配管用仮止めキャップは、円筒部の外面部に取手部が突出してキャップ本体を重ね合わせることができず、梱包する場合個々に包装することになり、梱包が不経済になるという問題があった。
【0010】
さらに、塩化ビニルにて形成した管材の寸法は外径を基準にしており、内径寸法については特に基準がないため、内径寸法にはばらつきが生じ、管材の配管端部の内周部に円筒部を嵌合する配管用仮止めキャップはこのような管材の内径寸法のばらつきが原因で嵌合できなくなる場合が多いという問題があった。
【0011】
本発明はこのような点に鑑みなされたもので、建築物の床面に管材外径に比して大きな管材の挿通孔を開口する必要がなく、また、取手部を有するキャップ本体でも容易に重ね合わせて係合でき、経済的に梱包でき、管材の内径寸法に多少のばらつきがあっても嵌合できる配管用仮止めキャップを提供することを目的とする。
【0012】
【課題を解決するための手段】
請求項1記載の配管用仮止めキャップは、管材の配管端部の内周部に嵌合する円筒部と、この円筒部の一方端面を閉塞する端板部と、この端板部の外周縁部から延出して前記円筒部の外周より径方向に突設され前記円筒部を内周部に嵌合した管材の配管端部の端面に当接するフランジ部と、前記端板部の外面に設けた取手部とを有し、この円筒部、端板部、フランジ部、および取手部とを軟質材料にて一体に成型したキャップ本体を備え、前記キャップ本体のフランジ部の外径は前記管材の端面外径と略同一径に形成し、前記管材の内周面に圧接するとともに一方端側から他方端側に向けて縮径方向に突出量が小さい案内部を他方端側に形成した突条部を前記円筒部の外周面に複数周方向に間隔をもって突設し、前記端板部の外面には、前記円筒部の他方端面の開口部と略同一径の仮想円に沿った位置にこの端板部に重ね合わせたキャップ本体の円筒部の他方端部を係合する係合部を形成し、前記取手部は前記係合部よりも中心側に突設するとともに、この取手部の前記端板部に対する軸方向の突出高さ寸法は、前記円筒部の中空部の軸方向寸法よりも低く形成したものである。
【0013】
そして、住宅などの建築物の床面に管材挿通用の挿通孔を開口して排水管などの管材を配管端部を挿通する場合、キャップ本体の円筒部の外径は管材の内径と略同一で、また、キャップ本体のフランジ部の外径は前記管材の配管端面の外径と略同一であるため、前記建築物の床面には前記管材の外径と略同一径の挿通孔を開口することにより、床面に管材の外径よりも大きな挿通孔を形成する必要がなく、この挿通孔において管材に配管用仮止めキャップを嵌合することができる。
【0014】
また、このキャップ本体を管材の端部に嵌合する際、このキャップ本体の円筒部の外周面に突出形成した突条部が弾性変形して前記管材の配管端部において内周面に圧接されるため、管材の内径寸法の多少のばらつきに左右されることなくこのキャップ本体を前記管材の配管端部に嵌合することができる。
【0015】
さらに、このキャップ本体を管材の配管端部に嵌合する際、前記突条部に形成された案内部により、前記円筒部は前記管材の配管端部において内周面に円滑に案内されて嵌合し、突条部の外面が管材の内周面に圧接される。
【0016】
そして、前記キャップ本体を梱包する際、このキャップ本体の端板部外面における前記円筒部の他方端面の開口部と略同一径の仮想円に沿った位置に設けられた係合部が前記円筒部の開口部に係合するため、複数のキャップ本体を係合状態で重ね合わせて梱包できる。
【0017】
さらに、前記キャップ本体を梱包するために一つのキャップ本体の端板部の外面に他のキャップ本体の円筒部の他方端部を重ね合わせた際、端板部の外面に突設した前記取手部は係合部より中心側に突設されているため、キャップ本体の取手部は、端板部に重ね合わせたキャップ本体の中空部に収納され、前記取手部がキャップ本体を重合して係合する際の支障となることはない。
【0018】
また、前記キャップ本体を重ね合わせた際、取手部の端板部に対する軸方向の突出高さ寸法はこの円筒部の中空部の軸方向寸法よりも低いことから、キャップ本体の取手部は端板部に重ね合わせたキャップ本体の中空部に収納され、取手部がキャップ本体を重合し係合する際の支障となることはない。
【0019】
請求項2記載の配管用仮止めキャップは、請求項1記載の配管用仮止めキャップにおいて、前記取手部は、端板部の外面部と略60度以上90度未満の角度をなして前記端板部の中心側に向かって傾斜するものである。
【0020】
そして、管材の配管端面を開口する際、キャップ本体の取手部を引っ張ることにより、このキャップ本体を前記管材の配管端部から容易に取り出すことができる。また、前記キャップ本体の製造時においてこのキャップ本体を成型金型から離脱させる際、取手部は端板部の外面部と略60度以上90度未満の角度をなして傾斜することにより、キャップ本体を金型から引き抜いて取り出す際、前記キャップ本体の材料の弾性作用によってアンダーカットとなる取手部を破損せずに金型と離型することができる。さらに、金型の分割を少なくしても製品を成型することができるので、金型構造を簡素化できて、金型作成費が安くなる。
【0021】
請求項3記載の配管用仮止めキャップは、請求項1または2記載の配管用仮止めキャップにおいて、複数の突条部のうち少なくともその一部には、その突条部とフランジ部との間に、この突条部の変形逃げ部を形成したものである。
【0022】
そして、キャップ本体を管材の端部に嵌合する際、このキャップ本体の突条部とフランジ部との間に形成されている突条部の変形逃げ部により、このキャップ本体の突条部の近傍部分が弾性変形する。また、このキャップ本体を製造する際、このキャップ本体の変形逃げ部は複数の突条部のうち少なくともその一部に形成したことにより、このキャップ本体の成形型における前記変形逃げ部を形成するための凸部は、成形型の型抜き方向に対向して形成できるため、成形型を簡単な構造にすることができる。
【0023】
請求項4記載の排水管仮止めキャップは、請求項1または2に記載の排水管仮止めキャップにおいて、突条部は、幅方向の両側部の表面を側縁部に向かって傾斜した肉薄状に形成するものである。
【0024】
そして、キャップ本体を管材の端部に嵌合する際、このキャップ本体の表面の両側部に向かって肉薄状にした突条部により管材の内周面の形状に応じて容易に弾性変形し、容易にキャップ本体を管材に嵌着できる。
【0025】
【発明の実施の形態】
以下、本発明の配管用仮止めキャップの一実施の形態の構成を図1ないし図7を参照して説明する。
【0026】
図1において、配管用仮止めキャップのキャップ本体1は、たとえばポリプロピレンやポリエチレンなどの軟質材料にて一体に成型する。そして、このキャップ本体1は、円筒部2と、端板部3と、フランジ部4と、係合部5と、取手部10とを備えている。
【0027】
図1ないし図4に示すとおり、前記円筒部2は略円筒形に形成され、この円筒部2の一方端面は前記端板部3によって閉塞されており、前記円筒部2の他方端側の端部には、開口部7が他方端側に向けて円形に開口されている。
【0028】
また、前記円筒部2の外周面には、図4に示すとおり、一方端側から他方端側に向けてこの円筒部2の軸方向に、複数の、たとえば6個の突条部8が、前記円筒部2の周方向に略等しい間隔をもって突設されている。そして、この突条部8は、一方端が前記フランジ部4に連設し、他方端側に案内部9を形成している。この案内部9は、一方端側から他方端側に向けて縮径方向に突出量が小さくなるように形成されている。
【0029】
そして、図1および図2に示すとおり、前記端板部3の外周縁部からは前記円筒部2の外周より径方向にフランジ部4が延出して形成されている。また、このフランジ部4の外周縁は略円形に形成され、このフランジ部4の外径は、このキャップ本体1を配管端部に嵌合する管材(図示せず)の配管端面の外径と略同一径に形成されている。
【0030】
また、図3に示すとおり、前記端板部3の外面の外周縁部近傍には、前記円筒部2の他方端面の前記開口部7と略同一径の仮想円に沿った位置に、複数、たとえば3個の係合部5が略等しい間隔を置いて突設されている。なお、この複数の係合部5は、一つのキャップ本体1の端板部3の外面と他のキャップ本体1の前記円筒部2の他方端側の端部を接合してキャップ本体1,1を重ね合わせて梱包する際に前記円筒部2の前記開口部7の内周縁部に係合される。
【0031】
そして、前記端板部3の外面には略U字状の取手部10が傾斜状に端板部3の中心側に向かって突設形成されている。この取手部10の両端部は、前記端板部3の外面において、前記係合部5よりも中心側に取り付けられている。そして、前記取手部10は、前記端板部3に対する軸方向の突出高さ寸法が、前記円筒部2の内側の中空部6の軸方向寸法よりも低くなるように形成されている。そして、図1および図2に示すとおり、この取手部10の前記端板部3に対する傾斜角度は略60度以上90度未満、たとえば略60度の角度をなしている。
【0032】
次に、この実施の形態の作用について説明する。
【0033】
図5および図6に示すように、排水管などの管材11は、たとえば建造物の床下などに配管される。この排水管の配管にあたっては、まず、図6に示すように、建築物の床下面に開口した前記管材11を挿通するための挿通孔16を穿設し、この挿通孔16に管材11を床面の下側から床面の上方に向かって配管し、前記管材11の配管端部12の内周部14にキャップ本体1の円筒部2を嵌合する。この円筒部2の外径は管材11の内径と略同一であり、また、フランジ部4の外径は前記管材11の配管端面13外径と略同一であるため、前記建築物の床面には前記管材11の直径と同一径の挿通孔16を開口すれば、この管材11を挿通することができる。
【0034】
次に、この管材11の円形状開口端部15には、キャップ本体1のフランジ部4が前記管材11の前記配管端面13に当接するまで前記キャップ本体1の円筒部2を管材11の内周部に嵌合すると、突条部8は前記管材11の内周面に圧接される。なお、キャップ本体1を管材11の配管端部12に嵌合するとき、前記キャップ本体1の前記円筒部2は、突条部8の案内部9によって管材11の内周部14に円滑に案内される。そして、この円筒部2は、突条部8が前記管材11の内周面に圧接されるため、前記円筒部2は、管材11の内周部14の内径寸法に多少のばらつきがあっても、このばらつきに左右されることなく前記管材11の配管端部12の内周部14に嵌合することができる。
【0035】
また、前記キャップ本体1は円筒部2を管材11の内周部14に嵌合するため、前記管材11の配管端面13が傾斜している場合であっても、前記キャップ本体1を前記管材11の配管端部12に嵌合することができる。
【0036】
さらに、キャップ本体1をフランジ部4が前記管材11の配管端部12に当接するまで前記管材11の配管端部12に嵌合すると、前記管材11の開口部7が前記キャップ本体1の端板部3によって被覆されて前記開口部7から前記管材11内部にごみなどが混入することが防止され、また、前記フランジ部4の外径は前記管材11の前記配管端面13の外径と略同一であることにより、前記管材11の前記配管端面13は前記フランジ部4によって閉塞されて破損や損傷が防止される。
【0037】
そして、前記管材11を他の管材11などに接続する場合には、キャップ本体1の端板部3の外面に設けた取手部10を把持して引っ張ることにより、キャップ本体1を容易に管材11の配管端部12から取り外し、管材11の配管端面13を開口する。
【0038】
次に、このキャップ本体1を複数梱包する際には、図2に示すように、複数のキャップ本体1を、一つのキャップ本体1の端板部3外面に他のキャップ本体1の円筒部2の開口部7を重ね合わせると、前記キャップ本体1の端板部3の外面における前記円筒部2の他方端面の開口部7と略同一径の仮想円に沿った位置に設けられた複数の係合部5が前記円筒部2の開口部7の近傍の内周部に係合するため、複数のキャップ本体1を係合状態で重ね合わせて梱包することができる。
【0039】
そして、前記キャップ本体1を梱包するとき、一つのキャップ本体1の端板部3の外面に他のキャップ本体1の円筒部2の開口部7を重ね合わせた際、端板部3の外面に突設した取手部10は前記係合部5よりも中心側に突設されているため、一つのキャップ本体1の取手部10は、他のキャップ本体1の前記中空部6に収納され、前記取手部10がキャップ本体1,1を重ね合わせて係合する際の支障となることはない。
【0040】
さらに、前記キャップ本体1を梱包するために一つのキャップ本体1の端板部3の外面に他のキャップ本体1の円筒部2の端部を重ね合わせた際、端板部3の外面に突設した前記取手部10の前記端板部3に対する軸方向の突出高さ寸法は前記円筒部2の中空部6の軸方向寸法よりも低いので、一つのキャップ本体1の取手部10は他のキャップ本体1の前記中空部6に臨ませて、前記取手部10がキャップ本体1を重ね合わせて係合する際の支障となることはない。
【0041】
また、図7に示すとおり、このキャップ本体1の製造時においては、たとえば上型17、下型18、およびスライドコマ19にて構成される金型を用いてキャップ本体1を成型する。そして、このキャップ本体1の成型に際し、キャップ本体1の材料を金型内に射出した後にスライドコマ19を抜いてから上型17を離型する工程において、前記取手部10は端板部3の外面部と略60度以上90度未満の角度をなして傾斜していることにより、前記キャップ本体1の前記取手部10を上型17から引き抜くと、前記キャップ本体1の材料の弾性作用によって前記取手部10を破損せずに無理に引き抜くことができる。そして、金型の分割を少なくして製品を成型することができる。
【0042】
なお、上記実施の形態においては、前記端板部3の外面において、前記円筒部2の他方端面の前記開口部7と略同一径の仮想円に沿った位置に、複数の、たとえば3個の係合部5が略等しい間隔を置いて一方端側に向かって突設する構成としたが、3個の係合部5に限られるものではなく、また、この複数の係合部5に代えて、前記円筒部2の前記開口部7の内径と略同一径の略環状の係合部(図示せず)を前記端板部3と一体に設けて一方端側に向かって突設する構成、または、前記端板部3の外面において、前記円筒部2の前記開口部7と略同一径の略環状の溝状の係合部(図示せず)を形成する構成とすることもできる。
【0043】
次に、本発明の配管用仮止めキャップの一実施の形態の構成を図8を参照して説明する。
【0044】
図8において、配管用仮止めキャップのキャップ本体1は、たとえばポリプロピレンやポリエチレンなどの軟質材料にて一体に成型する。そして、このキャップ本体1は、円筒部2と、端板部3と、フランジ部4と、係合部5と、取手部10とを備えている。
【0045】
そして、前記円筒部2の外周面には、一方端側から他方端側に向けてこの円筒部2の軸方向に、複数の、たとえば6個の突条部8が、前記円筒部2の周方向に略等しい間隔をもって突設されている。この突条部8は、幅方向の両側部に表面が側縁部に向かって漸次肉薄状となる肉薄部21が形成されており、一方端が前記フランジ部4に連設し、他方端側に案内部9を形成している。この案内部9は、一方端側から他方端側に向けて縮径方向に突出量が小さくなるように形成されている。
【0046】
そして、その他の構成は図1ないし図7に示す実施の形態と同じである。
【0047】
次に、この実施の形態の作用について説明する。
【0048】
たとえば建造物の床下などに配管した排水管などの管材11の配管端部12の内周部14には、キャップ本体1の円筒部2を嵌合する。このキャップ本体1の円筒部2を管材11の内周部に嵌合した状態では、突条部8が前記管材11の内周面に圧接されることにより、前記円筒部2は、前記管材11の内周面に圧接される。そして、このキャップ本体1の突条部8に、表面の両側部に向かって肉薄状にした肉薄部21を形成したことにより、この突条部8は管材11の内周面の形状に応じて容易に弾性変形し、この管材11の内径寸法にばらつきがあってもキャップ本体1を管材11の端部に確実に嵌合できる。
【0049】
なお、その他の作用は図1ないし図7に示す実施の形態の作用と同じである。
【0050】
次に、本発明の配管用仮止めキャップの一実施の形態の構成を図9を参照して説明する。
【0051】
図9において、配管用仮止めキャップのキャップ本体1は、たとえばポリプロピレンやポリエチレンなどの軟質材料にて一体に成型する。そして、このキャップ本体1は、円筒部2と、端板部3と、フランジ部4と、係合部5と、取手部10とを備えている。
【0052】
そして、前記円筒部2の外周面には、一方端側から他方端側に向けてこの円筒部2の軸方向に、複数の、たとえば6個の突条部8が、前記円筒部2の周方向に略等しい間隔をもって突設されている。この突条部8は、一方端と前記フランジ部4との間には間隙部22が形成され、他方端側には案内部9が形成されている。この案内部9は、一方端側から他方端側に向けて縮径方向に突出量が小さくなるように形成されている。
【0053】
さらに、この複数の突条部8のうち少なくともその一部、たとえば、このキャップ本体1を製造する際に成形型を型抜きする方向に対向している4個の前記突条部8と前記フランジ部4との間には、この突条部8の変形逃げ部20を窓孔状に形成している。
【0054】
そして、その他の構成は図1ないし図7に示す実施の形態と同じである。
【0055】
次に、この実施の形態の作用について説明する。
【0056】
たとえば建造物の床下などに配管した排水管などの管材11の配管端部12の内周部14には、キャップ本体1の円筒部2を嵌合する。このキャップ本体1の円筒部2を管材11の内周部に嵌合した状態では、突条部8が前記管材11の内周面に圧接されることにより、前記円筒部2は、前記管材11の内周面に圧接される。そして、前記突条部8が管材11の内周部に嵌合された際、この管材11の内径寸法にばらつきがあっても、前記突条部8とフランジ部4との間に形成された変形逃げ部20がばらつきを吸収し、キャップ体1は確実に管材11に嵌着される。
【0057】
さらに、このキャップ本体1を製造する際、前記変形逃げ部20はこのキャップ本体1の成形型を型抜きする方向に対向して形成することにより、このキャップ本体1の成形型の前記変形逃げ部を形成するための凸部は成形型の型抜き方向に形成し、成形型を簡単な構造にすることができる。
【0058】
なお、その他の作用は図1ないし図7に示す実施の形態の作用と同じである。
【0059】
また、上記実施の形態においては、突条部8の変形逃げ部20は窓孔状に形成する構成としたが、この構成に代えて、前記変形逃げ部20を前記突条部8とフランジ部4との間に凹窪状に形成することもできる。
【0060】
【発明の効果】
請求項1記載の発明によれば、住宅などの建築物の床面に管材挿通用の挿通孔を開口して排水管などの管材を配管端部を挿通する場合、キャップ本体の円筒部の外径は管材の内径と略同一で、また、キャップ本体のフランジ部の外径は前記管材の配管端面の外径と略同一であるため、前記建築物の床面には前記管材の外径と略同一径の挿通孔を開口することにより、床面に管材の外径よりも大きな挿通孔を形成する必要がなく、この挿通孔において管材に配管用仮止めキャップを嵌合することができ、建築物の床面に前記管材の配管端面の外径よりも大きな挿通孔を開けて管材配管後に前記挿通孔と前記配管の隙間を埋める工事を行う必要が無く、建築物床面の美観が保たれる。
【0061】
そして、このキャップ本体の円筒部の外周面に突出形成した突条部が弾性変形して前記管材の配管端部において内周面に圧接されるため、管材の内径寸法の多少のばらつきに左右されることなくこのキャップ本体を前記管材の配管端部に嵌合することができる。
【0062】
さらに、このキャップ本体を管材の配管端部に嵌合する際、前記突条部に形成された案内部により、前記円筒部は前記管材の配管端部において内周面に円滑に案内されて嵌合し、突条部の外面が管材の内周面に圧接されるため、前記キャップ本体を前記管材に嵌合する作業を円滑に行うことができる。
【0063】
また、前記キャップ本体を梱包する際、このキャップ本体の端板部外面における前記円筒部の他方端面の開口部と略同一径の仮想円に沿った位置に設けられた係合部が前記円筒部の開口部に係合するため、複数のキャップ本体を係合状態で重ね合わせて梱包でき、梱包コストを下げることができる。
【0064】
さらに、前記キャップ本体を梱包するために一つのキャップ本体の端板部の外面に他のキャップ本体の円筒部の他方端部を重ね合わせた際、端板部の外面に突設した前記取手部は係合部より中心側に突設されているため、キャップ本体の取手部は、端板部に重ね合わせたキャップ本体の中空部に収納され、前記取手部がキャップ本体を重合して係合する際の支障となることはないので、小さな梱包容器内に多くのキャップ本体を梱包することができ、梱包コストを下げることができる。
【0065】
また、前記キャップ本体を重ね合わせた際、取手部の端板部に対する軸方向の突出高さ寸法はこの円筒部の中空部の軸方向寸法よりも低いことから、キャップ本体の取手部は端板部に重ね合わせたキャップ本体の中空部に収納され、取手部がキャップ本体を重合し係合する際の支障となることはないので、小さな梱包容器内に多くのキャップ本体を梱包することができ、梱包コストを下げることができる。
【0066】
請求項2記載の発明によれば、管材の配管端面を開口する際、キャップ本体の取手部を引っ張ることにより、このキャップ本体を前記管材の配管端部から容易に取り出すことができる。また、前記キャップ本体の製造時においてこのキャップ本体を成型金型から離脱させる際、取手部は端板部の外面部と略60度以上90度未満の角度をなして傾斜することにより、キャップ本体を金型から引き抜いて取り出す際、前記キャップ本体の材料の弾性作用によってアンダーカットとなる取手部を破損せずに金型と離型することができる。さらに、金型の分割を少なくしても製品を成型することができるので、金型構造を簡素化できて、金型作成費が安くなり、製造コストを下げることができる。
【0067】
請求項3記載の発明によれば、キャップ本体を管材の端部に嵌合する際、このキャップ本体の突条部とフランジ部との間に形成されている突条部の変形逃げ部により、このキャップ本体の突条部の近傍部分が弾性変形し、したがって管材の内径寸法の多少のばらつきに左右されることなく前記キャップ本体を前記管材の配管端部に嵌合することができる。
【0068】
また、このキャップ本体を製造する際、このキャップ本体の変形逃げ部は複数の突条部のうち、キャップ本体の成形型における前記変形逃げ部を形成するための凸部は、成形型の型抜き方向に対向して形成することにより、成形型を簡単な構造にすることができる。したがって金型構造を簡素化できて金型作成費が安くなり、製造コストを下げることができる。
【0069】
請求項4記載の発明によれば、キャップ本体を管材の端部に嵌合する際、このキャップ本体の表面の両側部に向かって肉薄状にした突条部により管材の内周面の形状に即して容易に弾性変形し、管材の内径寸法の多少のばらつきに左右されることなくこのキャップ本体を管材に嵌着することができる。
【図面の簡単な説明】
【図1】本発明の配管用仮止めキャップの一の実施の形態を示す一部を切り欠いた側面図である。
【図2】同上配管用仮止めキャップの縦断側面図である。
【図3】同上配管用仮止めキャップの平面図である。
【図4】同上配管用仮止めキャップの底面図である。
【図5】同上配管用仮止めキャップの管材の配管端部に嵌合した状態を示す縦断側面図である。
【図6】同上配管用仮止めキャップを床面の挿通孔に配設されている管材に嵌合した状態を示す縦断側面図である。
【図7】同上配管用仮止めキャップを金型を用いて成型する状態を示す縦断面側面図である。
【図8】本発明の配管用仮止めキャップの他の実施の形態を示す一部を切り欠いた側面図である。
【図9】本発明の配管用仮止めキャップの他の実施の形態を示す一部を切り欠いた側面図である。
【符号の説明】
1 キャップ本体
2 円筒部
3 端板部
4 フランジ部
5 係合部
6 中空部
7 開口部
8 突条部
9 案内部
10 取手部
11 管材
12 配管端部
13 配管端面
14 内周部
20 変形逃げ部
21 肉薄部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a temporary fixing cap for piping used for protecting an end face of a pipe material in the middle of piping when piping a pipe material such as a drain pipe.
[0002]
[Prior art]
Conventionally, when piping pipes such as drain pipes, dust and the like are prevented from entering the inside of the pipe from the opening on the end of the pipe during piping work, and damage and damage to the pipe end of the pipe are prevented. Therefore, a temporary fixing cap for piping is fitted to the piping end portion of the pipe material.
[0003]
And the conventional temporary fixing cap for piping is a pipe end face of the pipe material with the end plate part formed on the end face of the cylindrical part by fitting the cylindrical part of the cap body to the inner peripheral part or the outer peripheral part of the pipe end part of the pipe material. (For example, refer to Patent Document 1).
[0004]
Conventionally, the temporary fixing cap for piping is a flange portion in which the cylindrical portion of the cap body is fitted to the inner peripheral portion of the pipe end portion of the pipe material, and is protruded in the radial direction from the outer peripheral edge portion of one end portion of the cylindrical portion. The pipe end face of the pipe material is covered by the above, and a handle part is provided in the vicinity of the substantially central part of the outer surface part of the cylindrical part (see, for example, Patent Document 2).
[0005]
[Patent Document 1]
Japanese Utility Model Publication No. 57-25295 (page 2, FIGS. 2 and 3)
[0006]
[Patent Document 2]
Japanese Utility Model Publication No. 54-1229819 (first page, FIG. 1 and FIG. 2)
[0007]
[Problems to be solved by the invention]
However, in the temporary fixing cap for piping shown in Patent Document 1 in which the cylindrical portion of the cap body is fitted to the outer peripheral portion of the piping end portion of the pipe material, the outer diameter of the temporary fixing cap for piping is the pipe end portion of the pipe material. Accordingly, the apparent outer diameter of the pipe end face side of the pipe member in the state where the pipe temporary fixing cap is mounted is larger than the outer diameter of the pipe member. For this reason, when an insertion hole for inserting a pipe material is opened on the floor surface of a building such as a house and the pipe material is inserted and piped, the insertion hole is erroneously opened in accordance with the outer diameter of the temporary fixing cap for piping. Therefore, the insertion hole is larger than the outer diameter of the pipe material, and there is a problem that the appearance of the floor surface is impaired, and a plurality of temporary fixing caps for piping are overlapped and engaged at the time of packing. Further, when the handle portion is formed on the end plate portion of the cap body, there is a problem that the handle portion becomes bulky and the packaging becomes large and the packaging becomes uneconomical.
[0008]
Moreover, the temporary fixing cap for piping which fits a cylindrical part to the inner peripheral part of the pipe end part of a pipe shown in the above-mentioned literature 1 cannot be engaged with the cap body being overlapped, and the handle part is also simple. Could not be provided.
[0009]
Moreover, the said temporary fixing cap for piping which has the handle part of a cap main body shown in the said patent document 2 cannot be overlaid on the cap main body because a handle part protrudes on the outer surface part of a cylindrical part, and when packing, it is individually There was a problem that packing would be uneconomical.
[0010]
Furthermore, the dimensions of the pipe material made of vinyl chloride are based on the outer diameter, and there is no particular standard for the inner diameter dimension. Therefore, the inner diameter dimension varies, and a cylindrical portion is formed on the inner peripheral part of the pipe end of the pipe material. There has been a problem that the temporary fixing cap for piping that fits can often be unable to be fitted due to such variation in the inner diameter of the pipe material.
[0011]
The present invention has been made in view of the above points, and it is not necessary to open an insertion hole for a pipe material larger than the outer diameter of the pipe material on the floor of the building, and the cap body having a handle portion can be easily used. It is an object of the present invention to provide a temporary fixing cap for piping that can be overlapped and engaged, can be economically packed, and can be fitted even if there is some variation in the inner diameter of the pipe material.
[0012]
[Means for Solving the Problems]
The temporary fixing cap for piping according to claim 1 includes a cylindrical portion fitted to an inner peripheral portion of a pipe end portion of a pipe material, an end plate portion closing one end face of the cylindrical portion, and an outer peripheral edge of the end plate portion. A flange portion extending from the outer periphery of the cylindrical portion and projecting in a radial direction from the outer periphery of the cylindrical portion, and abutting against an end surface of a pipe end portion of the pipe member fitting the inner peripheral portion of the cylindrical portion; and an outer surface of the end plate portion And a cap body integrally molded with a soft material, the cylindrical portion, the end plate portion, the flange portion, and the handle portion, and the outer diameter of the flange portion of the cap body is A ridge formed to have substantially the same diameter as the outer diameter of the end surface, and a guide portion that is in pressure contact with the inner peripheral surface of the pipe member and has a small protrusion amount in the diameter-reducing direction from the one end side toward the other end side. And projecting the outer peripheral surface of the cylindrical portion with a plurality of intervals in the circumferential direction, the outer surface of the end plate portion, An engaging portion for engaging the other end portion of the cylindrical portion of the cap body superimposed on the end plate portion is formed at a position along a virtual circle having substantially the same diameter as the opening on the other end surface of the cylindrical portion, and the handle The part protrudes closer to the center than the engaging part, and the axial projecting height dimension of the handle part relative to the end plate part is lower than the axial dimension of the hollow part of the cylindrical part. It is.
[0013]
And when opening a pipe material insertion hole on the floor of a building such as a house and inserting a pipe material such as a drain pipe through the pipe end, the outer diameter of the cylindrical part of the cap body is substantially the same as the inner diameter of the pipe material. In addition, since the outer diameter of the flange portion of the cap body is substantially the same as the outer diameter of the pipe end face of the pipe material, an insertion hole having substantially the same diameter as the outer diameter of the pipe material is opened on the floor surface of the building. By doing so, it is not necessary to form an insertion hole larger than the outer diameter of the pipe material on the floor surface, and the temporary fixing cap for piping can be fitted to the pipe material in the insertion hole.
[0014]
Further, when the cap body is fitted to the end portion of the pipe material, the protrusion formed on the outer peripheral surface of the cylindrical portion of the cap main body is elastically deformed and pressed against the inner peripheral surface at the pipe end portion of the pipe material. Therefore, the cap body can be fitted to the pipe end of the pipe material without being influenced by some variation in the inner diameter of the pipe material.
[0015]
Further, when the cap body is fitted to the pipe end of the pipe material, the cylindrical portion is smoothly guided and fitted to the inner peripheral surface at the pipe end of the pipe material by the guide portion formed on the protrusion. The outer surface of the protrusion is pressed against the inner peripheral surface of the pipe material.
[0016]
And when packing the cap body, the engaging portion provided at a position along a virtual circle having substantially the same diameter as the opening of the other end surface of the cylindrical portion on the outer surface of the end plate portion of the cap body is the cylindrical portion. In order to engage with the opening, a plurality of cap bodies can be overlapped and packed in an engaged state.
[0017]
Further, when the other end portion of the cylindrical portion of the other cap body is overlapped with the outer surface of the end plate portion of one cap body in order to pack the cap body, the handle portion protruding from the outer surface of the end plate portion Is protruded closer to the center than the engaging part, so the handle part of the cap body is stored in the hollow part of the cap body superimposed on the end plate part, and the handle part overlaps and engages the cap body It will not be a hindrance when doing so.
[0018]
In addition, when the cap body is overlapped, the protruding height dimension in the axial direction with respect to the end plate part of the handle part is lower than the axial direction dimension of the hollow part of the cylindrical part. The cap body is accommodated in the hollow portion of the cap body, and the handle portion does not hinder the cap body from overlapping and engaging.
[0019]
The temporary fixing cap for piping according to claim 2 is the temporary fixing cap for piping according to claim 1, wherein the handle portion forms an angle of approximately 60 degrees or more and less than 90 degrees with an outer surface portion of the end plate portion. It inclines toward the center side of a board part.
[0020]
And when opening the pipe end surface of a pipe material, this cap main body can be easily taken out from the pipe end part of the said pipe material by pulling the handle part of a cap main body. Further, when the cap body is detached from the molding die during the production of the cap body, the handle part is inclined at an angle of approximately 60 degrees or more and less than 90 degrees with the outer surface part of the end plate part. When pulling out the mold from the mold, it can be released from the mold without damaging the undercut handle due to the elastic action of the material of the cap body. Furthermore, since the product can be molded even if the number of mold divisions is reduced, the mold structure can be simplified and the mold creation cost can be reduced.
[0021]
The temporary fixing cap for piping according to claim 3 is the temporary fixing cap for piping according to claim 1 or 2, wherein at least a part of the plurality of protruding portions is provided between the protruding portion and the flange portion. In addition, a deformation relief portion of this ridge portion is formed.
[0022]
When the cap main body is fitted to the end of the pipe material, the deformation relief portion of the ridge formed between the ridge of the cap main body and the flange portion causes the ridge of the cap main body to The vicinity is elastically deformed. Further, when the cap body is manufactured, the deformation relief portion of the cap body is formed on at least a part of the plurality of protrusions, thereby forming the deformation relief portion in the mold of the cap body. Since the convex portion can be formed so as to be opposed to the mold drawing direction of the mold, the mold can have a simple structure.
[0023]
The drain pipe temporary fixing cap according to claim 4 is the drain pipe temporary fixing cap according to claim 1 or 2, wherein the protruding portion is thin and slanted with the surfaces of both side portions in the width direction toward the side edge portions. Is formed.
[0024]
And when fitting the cap body to the end of the pipe material, it is easily elastically deformed according to the shape of the inner peripheral surface of the pipe material by the ridges made thin toward both sides of the surface of the cap body, The cap body can be easily fitted to the pipe.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the configuration of an embodiment of a temporary fixing cap for piping according to the present invention will be described with reference to FIGS.
[0026]
In FIG. 1, the cap main body 1 of the temporary fixing cap for piping is integrally molded from a soft material such as polypropylene or polyethylene. The cap body 1 includes a cylindrical portion 2, an end plate portion 3, a flange portion 4, an engaging portion 5, and a handle portion 10.
[0027]
As shown in FIGS. 1 to 4, the cylindrical portion 2 is formed in a substantially cylindrical shape, and one end surface of the cylindrical portion 2 is closed by the end plate portion 3, and an end on the other end side of the cylindrical portion 2. In the part, an opening 7 is circularly opened toward the other end side.
[0028]
Further, on the outer peripheral surface of the cylindrical portion 2, as shown in FIG. 4, a plurality of, for example, six ridge portions 8, for example, in the axial direction of the cylindrical portion 2 from one end side to the other end side, Projections are provided at substantially equal intervals in the circumferential direction of the cylindrical portion 2. The protrusion 8 has one end connected to the flange 4 and a guide 9 formed on the other end. The guide portion 9 is formed so that the protruding amount decreases in the diameter reducing direction from one end side to the other end side.
[0029]
As shown in FIGS. 1 and 2, a flange portion 4 extends from the outer peripheral edge of the end plate portion 3 in the radial direction from the outer periphery of the cylindrical portion 2. Further, the outer peripheral edge of the flange portion 4 is formed in a substantially circular shape. The outer diameter of the flange portion 4 is the same as the outer diameter of the pipe end surface of a pipe material (not shown) that fits the cap body 1 to the pipe end portion. They are formed with substantially the same diameter.
[0030]
Also, as shown in FIG. 3, in the vicinity of the outer peripheral edge of the outer surface of the end plate portion 3, a plurality of positions along a virtual circle having substantially the same diameter as the opening 7 of the other end surface of the cylindrical portion 2, For example, the three engaging portions 5 are projected at substantially equal intervals. The plurality of engaging portions 5 are formed by joining the outer surface of the end plate portion 3 of one cap body 1 and the end portion on the other end side of the cylindrical portion 2 of another cap body 1. Are overlapped with each other and engaged with the inner peripheral edge of the opening 7 of the cylindrical portion 2.
[0031]
A substantially U-shaped handle portion 10 is formed on the outer surface of the end plate portion 3 so as to protrude toward the center of the end plate portion 3 in an inclined manner. Both end portions of the handle portion 10 are attached to the center side of the engaging portion 5 on the outer surface of the end plate portion 3. The handle portion 10 is formed such that an axial protrusion height dimension with respect to the end plate portion 3 is lower than an axial dimension of the hollow portion 6 inside the cylindrical portion 2. As shown in FIGS. 1 and 2, the inclination angle of the handle portion 10 with respect to the end plate portion 3 is approximately 60 degrees or more and less than 90 degrees, for example, approximately 60 degrees.
[0032]
Next, the operation of this embodiment will be described.
[0033]
As shown in FIGS. 5 and 6, the pipe member 11 such as a drain pipe is piped, for example, under a floor of a building. As shown in FIG. 6, the drain pipe is first formed with an insertion hole 16 for inserting the pipe material 11 opened in the lower surface of the floor of the building. The pipe material 11 is placed in the insertion hole 16 on the floor. Piping is performed from the lower side of the surface toward the upper side of the floor surface, and the cylindrical portion 2 of the cap body 1 is fitted to the inner peripheral portion 14 of the pipe end portion 12 of the pipe material 11. Since the outer diameter of the cylindrical portion 2 is substantially the same as the inner diameter of the pipe material 11 and the outer diameter of the flange portion 4 is substantially the same as the outer diameter of the pipe end face 13 of the pipe material 11, If the insertion hole 16 having the same diameter as the diameter of the tube material 11 is opened, the tube material 11 can be inserted.
[0034]
Next, the cylindrical portion 2 of the cap body 1 is connected to the inner periphery of the tube 11 until the flange portion 4 of the cap body 1 contacts the pipe end surface 13 of the tube 11 at the circular opening end 15 of the tube 11. When fitted to the portion, the protrusion 8 is pressed against the inner peripheral surface of the tube material 11. When the cap body 1 is fitted to the pipe end 12 of the tube material 11, the cylindrical portion 2 of the cap body 1 is smoothly guided to the inner peripheral portion 14 of the tube material 11 by the guide portion 9 of the ridge portion 8. Is done. In this cylindrical portion 2, since the protruding portion 8 is pressed against the inner peripheral surface of the tube material 11, the cylindrical portion 2 can be used even if there is some variation in the inner diameter of the inner peripheral portion 14 of the tube material 11. Therefore, it is possible to fit the inner peripheral portion 14 of the pipe end portion 12 of the pipe material 11 without being affected by this variation.
[0035]
Further, since the cap main body 1 fits the cylindrical portion 2 to the inner peripheral portion 14 of the pipe material 11, the cap main body 1 is attached to the pipe material 11 even when the pipe end face 13 of the pipe material 11 is inclined. It can be fitted to the pipe end portion 12.
[0036]
Further, when the cap main body 1 is fitted to the pipe end 12 of the pipe 11 until the flange 4 abuts the pipe end 12 of the pipe 11, the opening 7 of the pipe 11 becomes the end plate of the cap main body 1. It is covered with the portion 3 to prevent dust and the like from entering the inside of the tube material 11 from the opening 7, and the outer diameter of the flange portion 4 is substantially the same as the outer diameter of the pipe end surface 13 of the tube material 11. As a result, the pipe end face 13 of the pipe material 11 is blocked by the flange portion 4 to prevent breakage or damage.
[0037]
And when connecting the said pipe material 11 to other pipe materials 11, etc., the cap main body 1 is easily pulled by grasping and pulling the handle part 10 provided in the outer surface of the end plate part 3 of the cap main body 1. Then, the pipe end face 13 of the pipe 11 is opened.
[0038]
Next, when packing a plurality of cap bodies 1, as shown in FIG. 2, the plurality of cap bodies 1 are placed on the outer surface of the end plate portion 3 of one cap body 1 and the cylindrical portion 2 of another cap body 1. When the openings 7 are overlapped, a plurality of engagement members provided at positions along the virtual circle having substantially the same diameter as the opening 7 on the other end surface of the cylindrical portion 2 on the outer surface of the end plate portion 3 of the cap body 1. Since the joint portion 5 engages with the inner peripheral portion of the cylindrical portion 2 in the vicinity of the opening portion 7, the plurality of cap bodies 1 can be overlapped and packed in an engaged state.
[0039]
And when packing the said cap main body 1, when the opening part 7 of the cylindrical part 2 of the other cap main body 1 is piled up on the outer surface of the end plate part 3 of one cap main body 1, on the outer surface of the end plate part 3. Since the protruding handle portion 10 protrudes toward the center side of the engaging portion 5, the handle portion 10 of one cap body 1 is accommodated in the hollow portion 6 of the other cap body 1, and The handle portion 10 does not become a hindrance when the cap bodies 1 and 1 are overlapped and engaged.
[0040]
Further, when the end of the cylindrical portion 2 of the other cap body 1 is overlapped with the outer surface of the end plate portion 3 of one cap body 1 in order to pack the cap body 1, the outer surface of the end plate portion 3 protrudes. Since the protruding height dimension in the axial direction of the handle part 10 provided relative to the end plate part 3 is lower than the axial dimension of the hollow part 6 of the cylindrical part 2, the handle part 10 of one cap body 1 is the other. The handle portion 10 faces the hollow portion 6 of the cap body 1 so as not to hinder the cap body 1 from being overlapped and engaged.
[0041]
Further, as shown in FIG. 7, at the time of manufacturing the cap body 1, the cap body 1 is molded using a mold constituted by, for example, the upper mold 17, the lower mold 18, and the slide piece 19. In the process of molding the cap body 1, in the step of removing the upper die 17 after removing the slide piece 19 after injecting the material of the cap body 1 into the mold, the handle 10 is formed of the end plate 3. When the handle portion 10 of the cap body 1 is pulled out from the upper mold 17 by being inclined at an angle of about 60 degrees or more and less than 90 degrees with the outer surface portion, the elastic action of the material of the cap body 1 causes the The handle 10 can be forcibly pulled out without damaging it. Then, the product can be molded with fewer mold divisions.
[0042]
In the above-described embodiment, a plurality of, for example, three pieces are provided on the outer surface of the end plate portion 3 at positions along the virtual circle having substantially the same diameter as the opening 7 on the other end surface of the cylindrical portion 2. The engaging portions 5 are provided so as to protrude toward one end side at substantially equal intervals. However, the engaging portions 5 are not limited to the three engaging portions 5 and are replaced with the plurality of engaging portions 5. A substantially annular engaging portion (not shown) having the same diameter as that of the opening 7 of the cylindrical portion 2 is provided integrally with the end plate portion 3 and protrudes toward one end side. Alternatively, a substantially annular groove-like engagement portion (not shown) having substantially the same diameter as the opening 7 of the cylindrical portion 2 may be formed on the outer surface of the end plate portion 3.
[0043]
Next, the configuration of an embodiment of the temporary fixing cap for piping of the present invention will be described with reference to FIG.
[0044]
In FIG. 8, the cap main body 1 of the temporary fixing cap for piping is integrally formed of a soft material such as polypropylene or polyethylene. The cap body 1 includes a cylindrical portion 2, an end plate portion 3, a flange portion 4, an engaging portion 5, and a handle portion 10.
[0045]
On the outer peripheral surface of the cylindrical portion 2, a plurality of, for example, six ridges 8 are arranged in the axial direction of the cylindrical portion 2 from one end side to the other end side. Projections are provided at substantially equal intervals in the direction. The protruding portion 8 is formed with thin portions 21 whose surfaces gradually become thinner toward the side edge portions on both side portions in the width direction, and one end is connected to the flange portion 4 and the other end side. A guide portion 9 is formed. The guide portion 9 is formed so that the protruding amount decreases in the diameter reducing direction from one end side to the other end side.
[0046]
Other configurations are the same as those of the embodiment shown in FIGS.
[0047]
Next, the operation of this embodiment will be described.
[0048]
For example, the cylindrical portion 2 of the cap body 1 is fitted into the inner peripheral portion 14 of the pipe end 12 of the pipe 11 such as a drain pipe piped under the floor of a building. In a state where the cylindrical portion 2 of the cap body 1 is fitted to the inner peripheral portion of the tube material 11, the protruding portion 8 is pressed against the inner peripheral surface of the tube material 11, whereby the cylindrical portion 2 is It is press-contacted to the inner peripheral surface. And, by forming the thin portion 21 which is thinned toward the both side portions of the surface on the ridge portion 8 of the cap body 1, the ridge portion 8 corresponds to the shape of the inner peripheral surface of the tube material 11. It is easily elastically deformed, and the cap body 1 can be securely fitted to the end of the tube 11 even if the inner diameter of the tube 11 varies.
[0049]
Other operations are the same as those of the embodiment shown in FIGS.
[0050]
Next, the configuration of an embodiment of the temporary fixing cap for piping according to the present invention will be described with reference to FIG.
[0051]
In FIG. 9, the cap main body 1 of the temporary fixing cap for piping is integrally formed of a soft material such as polypropylene or polyethylene. The cap body 1 includes a cylindrical portion 2, an end plate portion 3, a flange portion 4, an engaging portion 5, and a handle portion 10.
[0052]
On the outer peripheral surface of the cylindrical portion 2, a plurality of, for example, six ridges 8 are arranged in the axial direction of the cylindrical portion 2 from one end side to the other end side. Projections are provided at substantially equal intervals in the direction. The protrusion 8 has a gap portion 22 formed between one end and the flange portion 4 and a guide portion 9 formed on the other end side. The guide portion 9 is formed so that the protruding amount decreases in the diameter reducing direction from one end side to the other end side.
[0053]
Further, at least a part of the plurality of ridges 8, for example, the four ridges 8 and the flanges facing each other in the direction of punching the mold when the cap body 1 is manufactured. Between the portion 4, a deformation relief portion 20 of the protruding portion 8 is formed in a window hole shape.
[0054]
Other configurations are the same as those of the embodiment shown in FIGS.
[0055]
Next, the operation of this embodiment will be described.
[0056]
For example, the cylindrical portion 2 of the cap body 1 is fitted into the inner peripheral portion 14 of the pipe end 12 of the pipe 11 such as a drain pipe piped under the floor of a building. In a state where the cylindrical portion 2 of the cap body 1 is fitted to the inner peripheral portion of the tube material 11, the protruding portion 8 is pressed against the inner peripheral surface of the tube material 11, whereby the cylindrical portion 2 is It is press-contacted to the inner peripheral surface. And when the said protrusion 8 was fitted to the inner peripheral part of the pipe material 11, it was formed between the said protrusion 8 and the flange part 4 even if the internal diameter dimension of this pipe material 11 had dispersion | variation. The deformation escape portion 20 absorbs the variation, and the cap body 1 is securely fitted to the tube material 11.
[0057]
Further, when the cap body 1 is manufactured, the deformation relief portion 20 is formed so as to face the direction in which the mold of the cap body 1 is removed, so that the deformation relief portion of the mold of the cap body 1 is formed. The protrusions for forming the shape can be formed in the mold drawing direction of the mold so that the mold can have a simple structure.
[0058]
Other operations are the same as those of the embodiment shown in FIGS.
[0059]
Moreover, in the said embodiment, although the deformation | transformation escape part 20 of the protrusion part 8 was set as the structure formed in a window hole shape, it replaces with this structure, and the said deformation escape part 20 is the said protrusion part 8 and a flange part. 4 can also be formed in a concave shape.
[0060]
【The invention's effect】
According to the first aspect of the present invention, when a pipe material insertion hole is opened on the floor surface of a building such as a house and a pipe material such as a drain pipe is inserted through the pipe end, the outside of the cylindrical part of the cap body Since the diameter is substantially the same as the inner diameter of the pipe material, and the outer diameter of the flange portion of the cap body is substantially the same as the outer diameter of the pipe end face of the pipe material, the floor surface of the building has an outer diameter of the pipe material. By opening an insertion hole of substantially the same diameter, it is not necessary to form an insertion hole larger than the outer diameter of the pipe material on the floor surface, and a temporary fixing cap for piping can be fitted to the pipe material in this insertion hole, There is no need to open an insertion hole larger than the outer diameter of the pipe end face of the pipe on the floor of the building to fill the gap between the insertion hole and the pipe after pipe piping, and the aesthetics of the building floor is maintained. Be drunk.
[0061]
And since the protrusion formed on the outer peripheral surface of the cylindrical portion of the cap body is elastically deformed and pressed against the inner peripheral surface at the pipe end of the pipe material, it is influenced by some variation in the inner diameter size of the pipe material. The cap body can be fitted to the pipe end of the pipe material without any trouble.
[0062]
Further, when the cap body is fitted to the pipe end of the pipe material, the cylindrical portion is smoothly guided and fitted to the inner peripheral surface at the pipe end of the pipe material by the guide portion formed on the protrusion. In addition, since the outer surface of the protrusion is pressed against the inner peripheral surface of the pipe material, the work of fitting the cap body into the pipe material can be performed smoothly.
[0063]
Further, when packing the cap body, an engaging portion provided at a position along a virtual circle having substantially the same diameter as the opening of the other end surface of the cylindrical portion on the outer surface of the end plate portion of the cap body is the cylindrical portion. Since the plurality of cap bodies can be overlapped and packed in an engaged state, the packing cost can be reduced.
[0064]
Further, when the other end portion of the cylindrical portion of the other cap body is overlapped with the outer surface of the end plate portion of one cap body in order to pack the cap body, the handle portion protruding from the outer surface of the end plate portion Is protruded closer to the center than the engaging part, so the handle part of the cap body is stored in the hollow part of the cap body superimposed on the end plate part, and the handle part overlaps and engages the cap body Since it does not become a hindrance at the time of carrying out, many cap main bodies can be packed in a small packing container, and packing cost can be reduced.
[0065]
In addition, when the cap body is overlapped, the protruding height dimension in the axial direction with respect to the end plate part of the handle part is lower than the axial direction dimension of the hollow part of the cylindrical part. It is stored in the hollow part of the cap body superimposed on the part, and the handle part does not hinder the cap body from overlapping and engaging, so many cap bodies can be packed in a small packing container. , Packing cost can be reduced.
[0066]
According to invention of Claim 2, when opening the piping end surface of a pipe material, this cap main body can be easily taken out from the piping end part of the said pipe material by pulling the handle part of a cap main body. Further, when the cap body is detached from the molding die during the production of the cap body, the handle part is inclined at an angle of approximately 60 degrees or more and less than 90 degrees with the outer surface part of the end plate part. When pulling out the mold from the mold, it can be released from the mold without damaging the undercut handle due to the elastic action of the material of the cap body. Furthermore, since the product can be molded even if the number of molds is reduced, the mold structure can be simplified, the cost for creating the mold can be reduced, and the manufacturing cost can be reduced.
[0067]
According to the invention of claim 3, when the cap main body is fitted to the end of the pipe material, the deformation escape portion of the ridge formed between the ridge of the cap main body and the flange, The vicinity of the ridge portion of the cap body is elastically deformed, and therefore the cap body can be fitted to the pipe end of the tube material without being affected by some variation in the inner diameter of the tube material.
[0068]
Further, when the cap body is manufactured, the deformation relief part of the cap body is a plurality of protrusions, and the convex part for forming the deformation relief part in the mold of the cap body is a die-cut of the mold. By forming it facing the direction, the mold can be made a simple structure. Therefore, the mold structure can be simplified, the mold production cost can be reduced, and the manufacturing cost can be reduced.
[0069]
According to invention of Claim 4, when fitting a cap main body to the edge part of a pipe material, the shape of the inner peripheral surface of a pipe material is carried out by the protrusion part thinned toward the both sides of the surface of this cap main body. Accordingly, it is easily elastically deformed, and the cap body can be fitted to the pipe material without being influenced by some variation in the inner diameter of the pipe material.
[Brief description of the drawings]
FIG. 1 is a side view with a part cut away showing an embodiment of a temporary fixing cap for piping of the present invention.
FIG. 2 is a vertical side view of the temporary fixing cap for piping.
FIG. 3 is a plan view of the same temporary fixing cap for piping.
FIG. 4 is a bottom view of the temporary fixing cap for piping.
FIG. 5 is a longitudinal side view showing a state where the pipe is temporarily fitted to the pipe end of the pipe temporary fixing cap.
FIG. 6 is a longitudinal side view showing a state in which the temporary fixing cap for piping is fitted to a pipe material disposed in an insertion hole on the floor surface.
FIG. 7 is a vertical cross-sectional side view showing a state where the temporary fixing cap for piping is molded using a mold.
FIG. 8 is a side view with a part cut away showing another embodiment of the temporary fixing cap for piping of the present invention.
FIG. 9 is a side view with a part cut away showing another embodiment of the temporary fixing cap for piping of the present invention.
[Explanation of symbols]
1 Cap body
2 Cylindrical part
3 End plate
4 Flange
5 engaging part
6 Hollow part
7 opening
8 ridges
9 Guide
10 Handle part
11 Pipe material
12 Piping end
13 Piping end face
14 Inner circumference
20 Deformation relief
21 Thin section

Claims (4)

管材の配管端部の内周部に嵌合する円筒部と、この円筒部の一方端面を閉塞する端板部と、この端板部の外周縁部から延出して前記円筒部の外周より径方向に突設され前記円筒部を内周部に嵌合した管材の配管端部の端面に当接するフランジ部と、前記端板部の外面に設けた取手部とを有し、この円筒部、端板部、フランジ部、および取手部とを軟質材料にて一体に成型したキャップ本体を備え、
前記キャップ本体のフランジ部の外径は前記管材の端面外径と略同一径に形成し、
前記管材の内周面に圧接するとともに一方端側から他方端側に向けて縮径方向に突出量が小さい案内部を他方端側に形成した突条部を前記円筒部の外周面に複数周方向に間隔をもって突設し、
前記端板部の外面には、前記円筒部の他方端面の開口部と略同一径の仮想円に沿った位置にこの端板部に重ね合わせたキャップ本体の円筒部の他方端部を係合する係合部を形成し、
前記取手部は前記係合部よりも中心側に突設するとともに、この取手部の前記端板部に対する軸方向の突出高さ寸法は、前記円筒部の中空部の軸方向寸法よりも低く形成した
ことを特徴とする配管用仮止めキャップ。
A cylindrical portion that fits to the inner peripheral portion of the pipe end of the pipe, an end plate portion that closes one end surface of the cylindrical portion, and a diameter that extends from the outer peripheral edge of the end plate portion and extends from the outer periphery of the cylindrical portion. A flange portion that protrudes in the direction and abuts against an end surface of a pipe end portion of a pipe member that is fitted to the inner peripheral portion of the cylindrical portion, and a handle portion that is provided on the outer surface of the end plate portion. It has a cap body that is integrally molded with a soft material with an end plate part, a flange part, and a handle part,
The outer diameter of the flange portion of the cap body is formed to be approximately the same diameter as the outer diameter of the end surface of the pipe material,
A plurality of protrusions are formed on the outer peripheral surface of the cylindrical portion on the outer peripheral surface of the cylindrical portion. Protruding in the direction with an interval,
Engage the outer surface of the end plate portion with the other end portion of the cylindrical portion of the cap body superimposed on the end plate portion at a position along a virtual circle having substantially the same diameter as the opening on the other end surface of the cylindrical portion. Forming an engaging portion,
The handle portion protrudes more centrally than the engaging portion, and the projecting height dimension of the handle portion with respect to the end plate portion is lower than the axial dimension of the hollow portion of the cylindrical portion. A temporary cap for piping characterized by
取手部は、端板部の外面部と略60度以上90度未満の角度をなして前記端板部の中心側に向かって傾斜する
ことを特徴とする請求項1記載の配管用仮止めキャップ。
2. The temporary fixing cap for piping according to claim 1, wherein the handle portion is inclined toward the center side of the end plate portion at an angle of approximately 60 degrees or more and less than 90 degrees with the outer surface portion of the end plate portion. .
複数の突条部のうち少なくともその一部には、その突条部とフランジ部との間に、この突条部の変形逃げ部を形成した
ことを特徴とする請求項1または2記載の排水管仮止めキャップ。
The drainage according to claim 1 or 2, wherein at least a part of the plurality of protrusions is formed with a deformation relief portion of the protrusion between the protrusion and the flange. Temporary tube cap.
突条部は、幅方向の両側部の表面を側縁部に向かって傾斜した肉薄状に形成する
ことを特徴とする請求項1または2に記載の排水管仮止めキャップ。
The drainage pipe temporary fixing cap according to claim 1 or 2, wherein the protrusion is formed in a thin shape in which the surfaces of both sides in the width direction are inclined toward the side edge.
JP2002319937A 2002-11-01 2002-11-01 Temporary cap for piping Expired - Fee Related JP4243088B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002319937A JP4243088B2 (en) 2002-11-01 2002-11-01 Temporary cap for piping

Publications (2)

Publication Number Publication Date
JP2004156633A JP2004156633A (en) 2004-06-03
JP4243088B2 true JP4243088B2 (en) 2009-03-25

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ID=32801018

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6731736B2 (en) * 2016-01-29 2020-07-29 株式会社キッツ Pipe fittings with union nuts and plugs used for fittings
JP6731735B2 (en) * 2016-01-29 2020-07-29 株式会社キッツ Pipe fittings and plugs used for fittings
JP6020947B1 (en) * 2016-07-20 2016-11-02 株式会社オンダ製作所 Cap for tube
KR102219515B1 (en) * 2019-06-11 2021-02-24 (주)신안주철 Pipe cap

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