JP3843849B2

JP3843849B2 - Coupling clip and toilet sanitary appliance using the same

Info

Publication number: JP3843849B2
Application number: JP2002016206A
Authority: JP
Inventors: 秀記古川; 篤澤木; 正裕鳥居
Original assignee: Aisin Seiki Co Ltd; Aisin Corp
Current assignee: Aisin Corp
Priority date: 2002-01-24
Filing date: 2002-01-24
Publication date: 2006-11-08
Anticipated expiration: 2022-01-24
Also published as: KR100522057B1; KR20030064309A; JP2003214421A; CN1204321C; CN1434179A

Description

【０００１】
【発明の属する技術分野】
本発明は、ボルトによる締結の際にボルトの先端部に螺合される連結用クリップに関し、特にトイレの便座、洗浄用水タンク等を便器に取り付ける場合等に使用される連結用クリップに関する。
【０００２】
【従来の技術】
一般に狭い空間内に設置されることの多い、トイレの便座、洗浄用水タンク、便器等から構成されるトイレ用衛生器具の組み付け、分解を容易にするため、これらの構成品を連結するボルトの先端に螺合されるナットを有した連結用クリップには特有の作動が要求される。トイレ用衛生器具をボルト及び連結用クリップにより連結する場合、トイレ用衛生器具の複数の構成品を挿通したボルトに対して、その先端から頭部方向に順にナットを回し入れる通常の締め付けは行わない。まず、連結用クリップ内のナットの内径を広げて、ナットがボルトの外側で遊嵌した状態でナットをボルト頭部へ移動させる。連結される構成品を貫通するボルトにおいて、構成品になるべく近い位置までナットを移動し、ナットの内径を縮めてナットとボルトが螺合する状態にした後、連結用クリップを回転させて締め付けを行う。これにより、ボルトに対して少ない回転量で連結用クリップを締め付けることができ、トイレ用衛生器具の構成品の組み付け性は向上している。また、メンテナンス或いは清掃等でボルト及び連結用クリップによる締結を解除する場合は、連結用クリップが締め付け固定されている位置でナット内径を広げる。この作動により、ナットとボルトは螺合しない状態になり、ナットはボルトの外側で遊嵌した状態になるため、ナットはボルトの先端部へ容易に抜き取ることができ、トイレ用衛生器具のメンテナンス性は向上している。
【０００３】
従来のこの種の部品として特開平９−１１９４２４に記載されているものがある。この部品は円筒体を中心軸に平行な平面で分割した半円筒体形状のナットの外側に嵌合した略円筒状の操作部と呼ばれる部品を移動させることにより半円筒状のナットの内径を変化させて、ナット内周に挿通したボルトを螺合する状態若しくは螺合しない状態にするものである。
【０００４】
【発明が解決しようとする課題】
この部品においては、操作部を移動させてナットの内径を大きくした、即ちナットを広げた時、対向する半円筒状のナットは一端側に支点を置いて互いに反対方向に回動するように広がる。このため、他端においてはナットの内径を充分に大きく確保することができる。しかし、一端の内径は変化が小さいため、広げたナット内周にボルトを挿通する際にボルトのネジ山とナットの一端側内周面の間の隙間を充分に取ることができない。このため、ナットの一端側付近の内周面には雌ネジを形成することを避ける必要があった。
【０００５】
近年、トイレ用衛生器具には、製造コストを抑える等の理由から樹脂製のボルトが多用されている。これに伴いナットも樹脂製となっている。小さなネジ部でも大きな締結力を有する金属製のナットと金属製ボルトの組み合わせとは異なり、樹脂製のナットを樹脂製ボルトに締め付ける場合、ナットの雌ネジ部を減少させるには締結力への影響を考慮する必要があった。このため、ネジ部を減少させる必要のないナットを有した連結用クリップが求められていた。
【０００６】
本発明の課題は連結用クリップ内の略円筒形状のナットの内径を広げて、ボルトの外側においてナットを遊嵌する状態にした時、ボルトに対して平行にナットが離れることでボルトとナットの間の隙間を充分に確保できる連結用クリップを提供することである。
【０００７】
【課題を解決するための手段】
上記した技術的課題を解決するために講じた第１の技術的手段は請求項１に示すように、内周面にボルトが螺合可能な雌ネジ部が形成された円筒体を分割した複数の分割円筒体形状部材からなるナットと、該ナットの外周に嵌合されて前記分割円筒体形状部材を互いに接近及び離間させる略円筒状操作部材とを備え、前記略円筒状操作部材を前記ナットに対して移動させることで前記分割円筒体形状部材が接近して前記ナットの内径が第１の内径になる時前記ボルトと螺合し、前記分割円筒体形状部材が離間して前記ナットの内径が第２の内径になる時前記ボルトと螺合しない状態となる連結用クリップにおいて、前記複数の分割円筒体形状部材はそれぞれ一体的に案内部を備え、前記略円筒状操作部材は、その内周側に、前記案内部の間に押し入れられて前記案内部の間で挟まれる挟入部と、該挟入部により移動させられる前記分割円筒体形状部材に当接して前記分割円筒体形状部材の内周面が前記ボルトの中心軸と平行に移動するよう規制する規制部とを備え、前記案内部の間に前記挟入部が無い時は前記ナットの内径は前記第１の内径となり、前記案内部の間に前記挟入部が挟まれた時は前記ナットの内径は前記第２の内径となることを特徴とする連結用クリップを構成したことである。
【０００８】
上記の構成によれば、隣接する分割円筒形状部材のそれぞれの案内部間に操作部に設けられた挟入部が押し込まれる前、即ち案内部間に挟入部が無い状態では、ナットの内径はボルトの外周とほぼ等しく、ナット内径はナットとボルトが螺合する第1の内径となっている。一方、隣接する分割円筒形状部材の案内部間に操作部材に設けられた挟入部が押し込まれ、案内部間の間隔を広げられると、案内部と一体の分割円筒形状部材が構成するナットの内周長は大きくなり、ナットの内径は広がってナットとボルトが螺合しない第２の内径となる。これと同時に内周が広がる方向へ移動する分割円筒形状部材に当接して分割円筒形状部材のボルトの中心軸を含む平面内における回動を抑え、分割円筒形状部材、即ちナットの内周面がボルトの軸方向に平行な状態を保ちつつ、ナットの内周面をボルトの外周面から離すことができる。上記の案内部、挟入部及び規制部の協働によりボルト外周面の雄ネジ部に対し、ナット内周面の全長にわたる雌ネジ部全体を均等に離すことができる。このため、ナットの雌ネジ部の一部がボルトの雄ネジ部と干渉することがなくなり、ナット内周全長にわたって雌ネジ部を設けることが可能になり、ネジ部長さをより長く必要とする樹脂製ボルト及びナットの締結力の確保が容易となる。
【０００９】
より好ましくは請求項２に示すように、前記案内部に設けられ、移動してきた前記挟入部を所定の位置で保持し、前記ナットの内径を前記第1の内径若しくは前記第２の内径の何れか１つに保持する保持部を備えることを特徴とする、請求項１に記載の連結用クリップを構成するとよい。
【００１０】
上記の構成によれば、案内部に保持部を設けて、挟入部が案内部間に入らないように保持してナットの内径を第１の内径に保持することができる。また、案内部間に入ってきた挟入部を所定の位置で保持し、ナットの内径を第２の内径に保持することができる。このため、操作部によるナットの内径を第1の内径及び第２の内径の何れか一方への確実に切り替えることができる。特にナットの内径がボルトとナットが螺合しない、第２の内径になるとボルト及びナットによる締結が解除された状態になるため、締結が不用意に解除されることを防ぐ上で効果的である。
【００１１】
さらに、好ましくは請求項３に示すように複数の前記分割円筒形状部材の一端はそれぞれ、前記ボルトが挿通される環状部を介して互いに薄肉ヒンジ部で一体的に連結されていることを特徴とする、請求項１に記載の連結用クリップを構成するとよい。
【００１２】
上記の構成によれば、ナットとなる複数に分割円筒形状部材を折り曲げ可能な薄肉ヒンジ部で連結して一体成形することにより、連結用クリップの組み付けの際にナットがばらばらにならず作業性が向上する。また、分割円筒形状部材の一端同士を薄肉ヒンジ部で繋ぐのではなく、環状部を介して繋いだことにより、一端同士の間にボルト径よりやや大きい所定の距離を保つことができる。これにより、分割円筒形状部材がナットとしてクリップに組みつけられ、操作部材の挟入部によって移動する際、一端は既にボルト外周よりやや外側に位置させることができるため、規制部との協働と相まって、分割円筒形状部材が一端を中心とした回動の防止に効果がある。
【００１３】
さらに、請求項４に示すように前記操作部は前記ナットに対して周方向は固定されており、前記操作部に締結工具が嵌合される嵌合部が設けられていることを特徴とする、請求項１に記載の連結用クリップを構成するとよい。
【００１４】
上記構成によれば、ナットの周方向に、ナット、操作部及び嵌合部は一体的に回転が可能であるため、締結工具を用いて嵌合部を回転させ、より大きなトルクでナットを締め付けることが可能になる。
【００１５】
さらに、請求項５に示すように便座と、該便座が回転可能に固定される便器と、該便器に固定される洗浄用水タンクとを備えるトイレ用衛生器具であって、内周面にボルトが螺合可能な雌ネジ部が形成された円筒体を分割した複数の分割円筒体形状部材からなるナットと、該ナットの外周に嵌合されて前記分割円筒体形状部材を互いに接近及び離間させる略円筒状操作部材とを備え、前記略円筒状操作部を前記ナットに対して移動させることで前記分割円筒体形状部材が接近して前記ナットの内径が第１の内径になる時前記ボルトと螺合し、前記分割円筒体形状部材が内径方向に離間して前記ナットの内径が第２の内径になる時前記ボルトと螺合しない状態となる連結用クリップにおいて、前記複数の分割円筒体形状部材はそれぞれ一体的に案内部を備え、前記略円筒状操作部材は、その内周側に、前記案内部の間に押し入れられて前記案内部の間で挟まれる挟入部と、該挟入部により移動させられる前記分割円筒体形状部材に当接して前記分割円筒体形状部材の内周面が前記ボルトの中心軸と平行に移動するよう規制する規制部とを備え、前記案内部の間に前記挟入部が無い時は前記ナットの内径は前記第１の内径となり、前記案内部の間に前記挟入部が挟まれた時は前記ナットの内径は前記第２の内径となることを特徴とする連結用クリップで連結固定されることを特徴とするトイレ用衛生器具を構成した。
【００１６】
上記構成によれば、従来のこの種の器具と比較して、構成品の連結がより確実に、連結の解除がより容易なトイレ用衛生器具を構成することが可能になる。
【００１７】
【発明の実施の形態】
本発明の実施形態である連結用クリップの構成を添付した図１及び図２に基づいて以下に説明する。
【００１８】
図１に示すように、この連結用クリップは主にボルトが螺合されるナット部１１、ナット部１１の一端側（図１の右端側）及び外周側に嵌合され、ナット部１の内径を操作するための操作部１２及び、ナット部１１の他端側（図１の左端側）に連結されるパッキン部１３から構成される。
【００１９】
ナット部１１は他端部に大径部を有する２段形状の略円筒状の樹脂製部材である。ナット部１１の内周面には雌ネジ部が内周面の全長にわたって形成されており、ナット部１１内径と略等しい外径の図示しないボルトが螺合されるようになっている。略円筒状のナット部１１は中心軸を含む図１に示す、図１紙面に垂直な平面Ｐ１により２分割された形状をしており、２分割された略円筒状の部分である半円筒部１４ａ、１４ｂそれぞれの一端部は薄肉ヒンジ部１５ａ、１５ｂを介して環状部１６と一体的に連結している。半円筒部１４ａ、１４ｂ、薄肉ヒンジ部１５ａ、１５ｂ及び環状部１６は図５に示す樹脂製の一体成形部品である。図５は薄肉ヒンジ部１５ａ、１５ｂを折り曲げて半円筒部１４ａ、１４ｂが対向するように組み上げる前のナット部１１を示す。
【００２０】
図１及び図５に示すように半円筒部１４ａの一端側の外周面上には係止爪２３ａ、２４ａが形成されている。同様に、半円筒１４ｂの一端側の外周面にも係止爪２３ｂ、２４ｂが形成されている。係止爪２３ａ、２４ａは操作部１２に設けられた貫通孔１２ａ、１２ｂの縁部に係合して操作部１２がナット部１１から抜け落ちないようになっている。係止爪２３ｂ、２４ｂについても同様に操作部１２を係止するよう形成されている。
【００２１】
図１及び図５に示すように、半円筒部１４ａ、１４ｂの外周面周方向中央部には係合凸部２７ａ、２７ｂが形成されている。同様に、半円筒部１４ｂの外周面周方向端部には案内部２５ｂ、２６ｂが形成されている。図２に示すように、係合凸部２７ａの外周面周方向外側（図２上下方向）には操作部１２の係合溝３５ａがその側壁が所定間隔を取って配置されている。係合凸部２７ｂについても操作部１２の係合溝３６ｂが同様に配置されている。
【００２２】
操作部１２は略円筒状の部材で、その周面にナット部１１の半円筒部１４ａ、１４ｂの係止爪が係止される貫通孔１２ａ、１２ｂを備える。また、内周面には半円筒部１４ａ、１４ｂの係合凸部２７ａ、２７ｂを係合する係合溝３５ａ、３５ｂが形成されている。係合溝３５ａ、３５ｂは内側において係合凸部２７ａ、２７ｂが摺動可能に形成されている。
【００２３】
図１に示すように、ナット部１１が組み上がった状態では案内部２５ａと案内部２５ｂは対向して当接している。案内部２５ａ及び２５ｂには周方向端部から中央部へ所定幅の凹部２８ａ、２８ｂが形成されている。図１に示すように、半円筒部１４ａと半円筒部１４ｂの周方向端部が対向して当接している状態で、凹部２８ａ、２８ｂは繋がって前述の平面Ｐ（又は周方向端面）について対称な形状の凹部を形成している。
【００２４】
図１及び図２に示すように、凹部２８ａ、２８ｂ内には操作部１２の内周に設けられた薄い円柱状の挟入部３０ａが遊嵌されている。凹部２８ａ、２８ｂの深さは挟入部３０ａの高さと略等しく、凹部２８ａ、２８ｂの幅（上述の所定の幅）は挟入部３０ａの外径より若干大きくなるように形成されている。図１では図示しない案内部２６ｂ、２６ｂ（図５）に設けられた凹部２９ａ、２９ｂにも図示しない挟入部３０ｂが遊嵌されており、同様な形状をしている。
【００２５】
さらに図１に示すように、凹部２８ａ、２８ｂの幅は途中から一端側（図１の右端側）向かって幅が狭くなるように形成され、幅がゼロになった部分に隣接して保持部３１ａ、３１bが形成されている。保持部３１ａ、３１ｂの先端は図１に示す状態では互いに当接している。さらに保持部３１ａ、３１ｂの一端側に隣接して凹部３３ａ、３３ｂが形成されている。凹部３３ａ、３３ｂの半円筒部１４ａ、１４ｂの外周方向の幅は凹部２８ａ、２８ｂの同方向の幅と比べ狭く形成されている。
【００２６】
図１に示す半円筒部１４ａ、１４ｂの裏側にも、上述の凹部と対称位置に保持部３２ａ、３２ｂ、凹部３４ａ、３４ｂが形成されている。（平面図は図５に示す。）
半円筒部１４ａ、１４ｂのそれぞれの他端部には大径部１７ａ、１７ｂが一体的に設けられている。大径部１７ａ、１７ｂの内周側には嵌合溝１８ａ、１８ｂが形成されており、パッキン部１３の一端に形成されたフランジ部１９と嵌合し、パッキン部１３が軸方向に動かないように固定している。
【００２７】
パッキン部１３は半球状のゴムパッキン２０とフランジ部２１とフランジ部１９を備える略円筒状の樹脂製のベース部２２からなる。半球状のゴムパッキン２０は軸方向に挿通する挿通孔２０ａを有する。ゴムパッキン２０の挿通孔２０ａ内には一端側からベース部２２が挿入嵌合され、ゴムパッキン２０の一端側はフランジ部２１に当接し固定されている。
【００２８】
ベース部２２の一端側にはフランジ部２１に隣接平行してフランジ部１９が設けられている。ベース部２２に設けられたフランジ部１９はナット部１１に設けられた嵌合溝１８ａ、１８ｂの周方向には摺動可能であり、パッキン部１３はナット部１１と軸方向には移動せず、周方向には摺動するように固定されている。
【００２９】
本発明の実施形態である連結用クリップの作動を添付した図３及び２に基づいて以下に説明する。
【００３０】
この連結用クリップは例えば、図６に示すように、便器６１に便座６２を固定するため固定箇所６３に挿通させた図示しない樹脂製ボルトに螺合されたり、便器６１に洗浄用水タンク６４を固定するため固定箇所６５に挿通させた図示しない樹脂製ボルトに螺合されて使用される。
【００３１】
操作部１２をナット部１１に対して軸方向一端側（図１の右端側）に移動させた図３及び図４に示す状態にして、この状態で半円筒部１４ａ、１４ｂは軸方向に垂直方向（図４の上下方向外側）に平行移動して、ナット部１１の内径が広がる（図３）ため、図３及び図４では連結用クリップはナット部１１内周面に螺合する図示しないボルトの外周において遊嵌可能な状態になる。
【００３２】
従って、例えば図６に示した便器６１に便座６２や洗浄用水タンク６４を取り付ける際、作業者は図示しないボルトに図３に示す状態の連結用クリップをパッキン部１３から先に遊嵌する。パッキン部１３が固定箇所６３、６５に当接した後、操作部１２をナット部１１に対して軸方向他端側（図３の左端側）に押し込んで移動させる。
【００３３】
この操作により、半円筒部１４ａ、１４ｂは軸方向に垂直方向（図４の上下方向内側）に平行移動して、ナット部１１の内径は狭く（図２）なり、連結用クリップはナット部１１内周面に螺合する図１及び図２に示す状態になる。この状態で連結用クリップの操作部１２外周部を把持して回動して、連結用クリップと図示しないボルトの締め付けを行う。上述のように操作部１２を操作することで、力を込めて連結用クリップをボルトに絞める位置まではボルト外周に連結用クリップを遊嵌挿通させて移動できるため、締め付けのため作業者が手で連結用クリップを回す回転量を減らすことができ、ボルトへの連結クリップの締め込みが楽になり、便器６１と便座６２、洗浄用水タンク６４等との連結作業を容易且つ速やかに行うことができる。
【００３４】
また、締め込まれた連結用クリップの操作部１２を連結用クリップの一端側（図３の右側）に引っ張ることで連結用クリップは図３及び図４に示す状態になり、ボルトとの螺合が速やかに解除されるため、便器６１と便座６２、洗浄用水タンク６４等との連結解除を容易且つ速やかに行うことができる。従って、便器６１から便座６２や洗浄用水タンク６４を取り外しが容易になる。
【００３５】
さて、本発明による連結用クリップに特有の作動を以下に説明する。
【００３６】
図１及び図２の状態の連結用クリップにおいて、操作部１２を図１の右方向に移動させる。この時、操作部１２に一体に設けられている挟入部３０ａは凹部２８ａ、２８ｂ内側を図１右方向に移動する。凹部２８ａ及び２８ｂの幅を狭めた部分に至ると、凹部２８ａ及び２８ｂの縁部を図１の上下方向外側に押し分けて、保持部３１ａ、３１bを乗り越える。保持部３１ａ、３１ｂを乗り越えた挟入部３０ａは３３ａ及び３３ｂの間に挟まれつつ、半円筒部１４ａ、１４ｂを図３の上下方向外側に押し広げている。なお、図３に図示しない凹部２９ａ及び２９ｂ内側にある挟入部３０ｂも同様に保持部３２ａ、３２ｂ（図５）を乗り越え凹部３４ａ、３４ｂ（図５）の間に移動する。以上の作動を経て、連結用クリップは図３及び図４に示す状態になる。
【００３７】
この作動の途中で、半円筒部１４ａの案内部２５ａ、半円筒部１４ｂの２６ｂは係合溝３６ａ（規制部）に当接して半円筒部１４ａ、１４ｂを互いに平行に保持することができる。同様に、図３に図示しない半円筒部１４ｂの案内部２５ｂ、半円筒部１４ｂの２６ｂは係合溝３６ｂに当接して半円筒部１４ａ、１４ｂを互いに平行に保持することができる。また、半円筒部１４ａ、１４ｂそれぞれの一端部に一体的に形成されている薄肉ヒンジ１５ａ、１５ｂ及び環状部１６も半円筒部１４ａ、１４ｂを図３の上下方向外側に押し広げられる際に半円筒部１４ａ、１４ｂのそれぞれの一端が内側に向かって移動することで発生する軸方向に対する回動運動を規制している。係合溝３６ａ、３６ｂ及び薄肉ヒンジ１５ａ、１５ｂ及び環状部１６により、半円筒部１４ａ及び１４ｂは軸方向に対し垂直方向外側（図３上下方向外側）へ平行移動することが可能になる。
【００３８】
この平行移動により図示しないボルトと半円筒部１４ａ、１４ｂの内周面に形成される雌ネジ部の一端側の部分も十分に外側へ移動するため図示しないボルトとの干渉の恐れがなくなった。
【００３９】
従って、半円筒部１４ａ、１４ｂの内周面の軸方向全長にわたって雌ネジ部を形成することが可能になり、樹脂製の連結用クリップと樹脂製ボルトの間で締結力を十分に確保することが可能になる。
【００４０】
また、操作部１２の一端側には断面が六角形の筒状部３９が形成されており、筒状部３９にスパナ等の工具を嵌めて増し締めすることも可能になっている。
【００４１】
【発明の効果】
本発明により、ボルトによる締結の際にボルトの先端部に螺合される連結用クリップに関し、特にトイレの便座、洗浄用水タンク等を便器に取り付ける場合等に使用される連結用クリップが構成できる。
【図面の簡単な説明】
【図１】本発明の実施形態である連結用クリップの概略を示す縦断面図である。
【図２】図１のＡ−Ａ断面図である。
【図３】本発明の実施形態である連結用クリップの操作部を移動させた状態を示す縦断面図である。
【図４】図３のＢ−Ｂ断面図である。
【図５】樹脂からなる一体成形部材であるナットを展開した状態を示す図である。
【図６】本発明の連結クリップで構成品を連結固定したトイレ用衛生器具の一例を示す図である。
【符号の説明】
１１ナット部
１２操作部
１４ａ、１４ｂ半円筒部
２８ａ、２８ｂ、２９ａ、２９ｂ案内部
３０ａ、３０ｂ挟入部
３６ａ、３６ｂ係合溝（規制部）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connection clip that is screwed to the tip of a bolt when fastening with a bolt, and more particularly to a connection clip that is used when a toilet seat, a washing water tank, or the like is attached to a toilet.
[0002]
[Prior art]
The tip of a bolt that connects these components to facilitate assembly and disassembly of toilet sanitary equipment that is generally installed in a narrow space and is composed of a toilet seat, washing water tank, toilet, etc. A special operation is required for a connecting clip having a nut that is screwed together. When connecting toilet sanitary appliances with bolts and connecting clips, do not perform normal tightening by turning the nuts in turn from the tip toward the head of the bolt through which multiple components of toilet sanitary appliances are inserted. . First, the inner diameter of the nut in the connecting clip is widened, and the nut is moved to the bolt head with the nut loosely fitted on the outside of the bolt. In the bolt that penetrates the component to be connected, move the nut to a position as close as possible to the component, reduce the inner diameter of the nut so that the nut and bolt are screwed together, and then rotate the connecting clip to tighten it. Do. Thereby, the clip for connection can be tightened with a small amount of rotation with respect to the bolt, and the assemblability of the components of the toilet sanitary appliance is improved. Further, when releasing the fastening by the bolt and the connecting clip for maintenance or cleaning, the inner diameter of the nut is widened at a position where the connecting clip is fastened and fixed. By this operation, the nut and bolt are not screwed together, and the nut is loosely fitted on the outside of the bolt, so the nut can be easily pulled out to the tip of the bolt, and the maintenance of toilet sanitary equipment Is improving.
[0003]
A conventional component of this type is described in Japanese Patent Laid-Open No. 9-119424. This part changes the inner diameter of the semi-cylindrical nut by moving a part called a substantially cylindrical operating part fitted to the outside of the semi-cylindrical nut divided by a plane parallel to the central axis. Thus, the bolt inserted into the inner periphery of the nut is screwed or not screwed.
[0004]
[Problems to be solved by the invention]
In this part, when the operating part is moved to increase the inner diameter of the nut, that is, when the nut is widened, the opposing semi-cylindrical nuts spread so as to rotate in opposite directions with a fulcrum on one end side. . For this reason, a sufficiently large inner diameter of the nut can be secured at the other end. However, since the change in the inner diameter of one end is small, a sufficient gap cannot be made between the screw thread of the bolt and the inner peripheral surface of the one end side of the nut when the bolt is inserted into the expanded inner periphery of the nut. For this reason, it was necessary to avoid forming an internal thread on the inner peripheral surface near one end of the nut.
[0005]
In recent years, resin-made bolts are frequently used in toilet sanitary instruments for reasons such as reducing manufacturing costs. Along with this, the nut is also made of resin. Unlike a combination of a metal nut and a metal bolt that has a large fastening force even with a small screw part, when tightening a resin nut to a resin bolt, the effect on the fastening force is to reduce the female screw part of the nut. It was necessary to consider. For this reason, a connection clip having a nut that does not require a reduction in the threaded portion has been demanded.
[0006]
The problem of the present invention is that when the inner diameter of the substantially cylindrical nut in the connecting clip is widened and the nut is loosely fitted on the outside of the bolt, the nut is separated in parallel to the bolt so that the bolt and the nut It is an object of the present invention to provide a connecting clip that can sufficiently secure a gap therebetween.
[0007]
[Means for Solving the Problems]
The first technical means taken in order to solve the technical problem described above is a plurality of divided cylindrical bodies in which a female thread portion to which a bolt can be screwed is formed on the inner peripheral surface as shown in claim 1. wherein a nut comprising a split cylindrical body shaped member, and a substantially cylindrical operating member that is the split cylindrical body shaped member is toward and away from each other engaging the outer periphery of the nut, the substantially cylindrical operation member of the When the divided cylindrical body member moves closer to the nut and the inner diameter of the nut becomes the first inner diameter, the nut is screwed with the bolt, and the divided cylindrical body member is separated and separated from the nut. in connecting clip whose inner diameter becomes a state of not the bolt screwed when it comes to the second inner diameter, each of the plurality of divided cylindrical body shape member comprises integral guiding portion, the substantially cylindrical operation member, the the inner peripheral side, between the guide portion The sandwiched portion sandwiched between the guide portions and the divided cylindrical body member moved by the sandwiched portion is in contact with the inner peripheral surface of the divided cylindrical body member and the central axis of the bolt A restricting portion for restricting movement in parallel, and when there is no sandwiched portion between the guide portions, the inner diameter of the nut is the first inner diameter, and the sandwiched portion is sandwiched between the guide portions. The connecting clip is characterized in that the inner diameter of the nut is the second inner diameter.
[0008]
According to said structure, before the insertion part provided in the operation part was pushed between each guide part of an adjacent division | segmentation cylindrical member, ie, in the state without a insertion part between guide parts, the internal diameter of a nut is a volt | bolt. The inner diameter of the nut is a first inner diameter where the nut and the bolt are screwed together. On the other hand, when the insertion portion provided in the operation member is pushed between the guide portions of the adjacent divided cylindrical members and the interval between the guide portions is widened, the nut formed by the divided cylindrical member integral with the guide portion The circumference increases, and the inner diameter of the nut widens to become a second inner diameter where the nut and the bolt are not screwed together. At the same time, it abuts on the divided cylindrical member that moves in the direction in which the inner circumference expands, and suppresses the rotation of the divided cylindrical member in the plane including the central axis of the bolt, and the divided cylindrical member, that is, the inner circumferential surface of the nut The inner peripheral surface of the nut can be separated from the outer peripheral surface of the bolt while maintaining a state parallel to the axial direction of the bolt. Through the cooperation of the guide part, the sandwiching part and the restricting part, the entire female screw part over the entire length of the nut inner peripheral surface can be evenly separated from the male screw part on the outer peripheral surface of the bolt. For this reason, a part of the female screw part of the nut does not interfere with the male screw part of the bolt, and it is possible to provide the female screw part over the entire inner circumference of the nut, and a resin that requires a longer screw part length. It becomes easy to secure the fastening force of the bolts and nuts.
[0009]
More preferably, as shown in claim 2, the nipping portion provided in the guide portion and moved has been held at a predetermined position, and the inner diameter of the nut is either the first inner diameter or the second inner diameter. The connecting clip according to claim 1, further comprising a holding portion that holds the connecting clip.
[0010]
According to said structure, a holding | maintenance part is provided in a guide part, it hold | maintains so that an insertion part may not enter between guide parts, and the internal diameter of a nut can be hold | maintained at a 1st internal diameter. In addition, the sandwiched portion that has entered between the guide portions can be held at a predetermined position, and the inner diameter of the nut can be held at the second inner diameter. For this reason, the inner diameter of the nut by the operating portion can be reliably switched to one of the first inner diameter and the second inner diameter. Particularly, when the inner diameter of the nut is not screwed with the bolt and the second inner diameter is reached, the fastening with the bolt and the nut is released, which is effective in preventing the fastening from being inadvertently released. .
[0011]
Further, preferably, as shown in claim 3, one end of each of the plurality of divided cylindrical members is integrally connected to each other by a thin hinge portion through an annular portion through which the bolt is inserted. The connecting clip according to claim 1 may be configured.
[0012]
According to the above-described configuration, the nut is not separated when the connecting clip is assembled by connecting and integrally forming the divided cylindrical member into a plurality of nuts by the thin hinge portion that can be bent. improves. Moreover, a predetermined distance slightly larger than the bolt diameter can be maintained between the ends by connecting the ends of the divided cylindrical members through the annular portion instead of connecting the ends with the thin hinge portion. As a result, when the divided cylindrical member is assembled to the clip as a nut and moved by the insertion portion of the operation member, one end can already be positioned slightly outside the outer periphery of the bolt, which is coupled with the cooperation with the restricting portion. The divided cylindrical member is effective in preventing rotation about one end.
[0013]
Furthermore, as shown in claim 4, the operation portion is fixed in the circumferential direction with respect to the nut, and a fitting portion into which a fastening tool is fitted is provided in the operation portion. The connecting clip according to claim 1 may be configured.
[0014]
According to the above configuration, since the nut, the operation portion, and the fitting portion can be rotated integrally in the circumferential direction of the nut, the fitting portion is rotated using a fastening tool, and the nut is tightened with a larger torque. It becomes possible.
[0015]
Furthermore, as shown in claim 5, a toilet sanitary appliance comprising a toilet seat, a toilet bowl on which the toilet seat is rotatably fixed, and a washing water tank fixed on the toilet bowl, wherein a bolt is provided on the inner peripheral surface. A nut made of a plurality of divided cylindrical body members obtained by dividing a cylindrical body formed with a threadable female thread portion, and an approximately fitting member that is fitted to the outer periphery of the nut to approach and separate the divided cylindrical body members from each other. A cylindrical operation member, and when the substantially cylindrical operation part is moved relative to the nut, the divided cylindrical body member approaches and the inner diameter of the nut becomes the first inner diameter. A plurality of the divided cylindrical body-shaped members, wherein the divided cylindrical body-shaped members are separated from each other in the inner diameter direction so that the nut does not screw with the bolt when the inner diameter of the nut becomes the second inner diameter. Are all in one piece An internal, the substantially cylindrical operating member has on its inner periphery, and clamping join the club sandwiched between said guide portion is pushed between the guide portion, the divided cylindrical body is moved by該挟join the club A regulating portion that abuts against the shape member and regulates an inner peripheral surface of the divided cylindrical body shape member so as to move in parallel with a central axis of the bolt, and when there is no clamping portion between the guide portions, The inner diameter of the nut is the first inner diameter, and when the inserting portion is sandwiched between the guide portions, the inner diameter of the nut is the second inner diameter. A toilet sanitary ware characterized by the above was constructed.
[0016]
According to the said structure, compared with this kind of conventional instrument, it becomes possible to comprise the toilet sanitary instrument which the connection of a component is more reliable, and cancellation | release of a connection is easier.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
The structure of the connecting clip according to the embodiment of the present invention will be described below with reference to FIGS. 1 and 2 attached.
[0018]
As shown in FIG. 1, this connecting clip is mainly fitted to a nut portion 11 into which a bolt is screwed, one end side (right end side in FIG. 1) and the outer peripheral side of the nut portion 11. And a packing portion 13 connected to the other end side (the left end side in FIG. 1) of the nut portion 11.
[0019]
The nut portion 11 is a two-stage substantially cylindrical resin member having a large diameter portion at the other end. A female thread portion is formed on the inner peripheral surface of the nut portion 11 over the entire length of the inner peripheral surface, and a bolt (not shown) having an outer diameter substantially equal to the inner diameter of the nut portion 11 is screwed together. The substantially cylindrical nut portion 11 has a shape divided into two by a plane P1 perpendicular to the paper surface of FIG. 1 shown in FIG. 1 including the central axis, and a semi-cylindrical portion which is a substantially cylindrical portion divided into two. One end of each of 14a and 14b is integrally connected to the annular portion 16 via thin hinge portions 15a and 15b. The semi-cylindrical portions 14a and 14b, the thin-walled hinge portions 15a and 15b, and the annular portion 16 are integrally molded parts made of resin shown in FIG. FIG. 5 shows the nut portion 11 before the thin hinge portions 15a and 15b are folded and assembled so that the semi-cylindrical portions 14a and 14b face each other.
[0020]
As shown in FIGS. 1 and 5, locking claws 23a and 24a are formed on the outer peripheral surface on one end side of the semi-cylindrical portion 14a. Similarly, locking claws 23b and 24b are also formed on the outer peripheral surface on one end side of the semi-cylinder 14b. The locking claws 23a and 24a are engaged with the edge portions of the through holes 12a and 12b provided in the operation portion 12 so that the operation portion 12 does not fall out of the nut portion 11. Similarly, the locking claws 23b and 24b are formed so as to lock the operation portion 12.
[0021]
As shown in FIGS. 1 and 5, engagement convex portions 27 a and 27 b are formed at the center portions in the circumferential direction of the outer peripheral surfaces of the semi-cylindrical portions 14 a and 14 b. Similarly, guide portions 25b and 26b are formed at the outer circumferential surface end of the semicylindrical portion 14b. As shown in FIG. 2, the engagement groove 35 a of the operation unit 12 is disposed with a predetermined interval on the outer circumferential surface (upward and downward direction in FIG. 2) of the engagement protrusion 27 a. The engaging groove 36b of the operation unit 12 is similarly arranged with respect to the engaging convex portion 27b.
[0022]
The operation unit 12 is a substantially cylindrical member, and includes through holes 12a and 12b on the circumferential surface of which the locking claws of the semi-cylindrical portions 14a and 14b of the nut portion 11 are locked. Engaging grooves 35a and 35b for engaging the engaging convex portions 27a and 27b of the semi-cylindrical portions 14a and 14b are formed on the inner peripheral surface. The engagement grooves 35a and 35b are formed so that the engagement protrusions 27a and 27b are slidable on the inner side.
[0023]
As shown in FIG. 1, when the nut portion 11 is assembled, the guide portion 25a and the guide portion 25b are in contact with each other. In the guide portions 25a and 25b, concave portions 28a and 28b having a predetermined width are formed from the circumferential end portion to the central portion. As shown in FIG. 1, with the circumferential ends of the semi-cylindrical portion 14a and the semi-cylindrical portion 14b facing each other, the recesses 28a and 28b are connected and the plane P (or circumferential end surface) described above is connected. A symmetrical concave portion is formed.
[0024]
As shown in FIGS. 1 and 2, a thin cylindrical sandwiching portion 30 a provided on the inner periphery of the operation portion 12 is loosely fitted in the recesses 28 a and 28 b. The depths of the recesses 28a and 28b are substantially equal to the height of the sandwiching part 30a, and the widths of the recesses 28a and 28b (the above-mentioned predetermined width) are formed to be slightly larger than the outer diameter of the sandwiching part 30a. In FIG. 1, a not-shown sandwiching portion 30b is also loosely fitted into recesses 29a and 29b provided in guide portions 26b and 26b (FIG. 5) (not shown), and has the same shape.
[0025]
Further, as shown in FIG. 1, the recesses 28a and 28b are formed so that the width of the recesses 28a and 28b becomes narrower from the middle toward the one end side (the right end side in FIG. 1), adjacent to the portion where the width becomes zero. 31a and 31b are formed. The tips of the holding portions 31a and 31b are in contact with each other in the state shown in FIG. Further, recessed portions 33a and 33b are formed adjacent to one end sides of the holding portions 31a and 31b. The outer circumferential width of the semi-cylindrical portions 14a, 14b of the recesses 33a, 33b is formed narrower than the width of the recesses 28a, 28b in the same direction.
[0026]
Also on the back side of the semi-cylindrical portions 14a and 14b shown in FIG. 1, holding portions 32a and 32b and concave portions 34a and 34b are formed at positions symmetrical to the above-described concave portions. (The top view is shown in FIG. 5.)
Large-diameter portions 17a and 17b are integrally provided at the other end portions of the semi-cylindrical portions 14a and 14b, respectively. Fitting grooves 18a and 18b are formed on the inner peripheral side of the large-diameter portions 17a and 17b, and are fitted with a flange portion 19 formed at one end of the packing portion 13, so that the packing portion 13 does not move in the axial direction. So that it is fixed.
[0027]
The packing portion 13 includes a substantially cylindrical resin base portion 22 having a hemispherical rubber packing 20, a flange portion 21, and a flange portion 19. The hemispherical rubber packing 20 has an insertion hole 20a that is inserted in the axial direction. A base portion 22 is inserted and fitted into the insertion hole 20 a of the rubber packing 20 from one end side, and one end side of the rubber packing 20 is in contact with and fixed to the flange portion 21.
[0028]
A flange portion 19 is provided on one end side of the base portion 22 so as to be adjacent to and parallel to the flange portion 21. The flange portion 19 provided in the base portion 22 is slidable in the circumferential direction of the fitting grooves 18a and 18b provided in the nut portion 11, and the packing portion 13 does not move in the axial direction with the nut portion 11. It is fixed so as to slide in the circumferential direction.
[0029]
The operation of the connecting clip according to the embodiment of the present invention will be described below with reference to FIGS.
[0030]
For example, as shown in FIG. 6, the coupling clip is screwed into a resin bolt (not shown) inserted through the fixing portion 63 to fix the toilet seat 62 to the toilet bowl 61, or the washing water tank 64 is fixed to the toilet bowl 61. For this purpose, it is used by being screwed into a resin bolt (not shown) inserted through the fixed portion 65.
[0031]
The operation unit 12 is moved to one end side in the axial direction (the right end side in FIG. 1) with respect to the nut unit 11, and the semi-cylindrical portions 14a and 14b are perpendicular to the axial direction in this state. 3 (FIG. 3), the coupling clip is screwed to the inner peripheral surface of the nut portion 11 (not shown). It will be in the state which can be loosely fitted in the outer periphery of a volt | bolt.
[0032]
Therefore, when attaching the toilet seat 62 and the washing water tank 64 to the toilet bowl 61 shown in FIG. 6, for example, the operator loosely fits the coupling clip in the state shown in FIG. After the packing portion 13 abuts on the fixing portions 63 and 65, the operating portion 12 is pushed into the nut portion 11 toward the other end side in the axial direction (left end side in FIG. 3) and moved.
[0033]
By this operation, the semi-cylindrical portions 14a and 14b are translated in a direction perpendicular to the axial direction (inward in the vertical direction in FIG. 4), the inner diameter of the nut portion 11 is narrowed (FIG. 2), and the connecting clip is the nut portion 11. It will be in the state shown in FIG.1 and FIG.2 screwed to an internal peripheral surface. In this state, the outer peripheral portion of the operation portion 12 of the connection clip is gripped and rotated, and the connection clip and a bolt (not shown) are tightened. By operating the operation unit 12 as described above, the connection clip can be loosely inserted into the outer periphery of the bolt and moved to a position where the connection clip is tightened to the bolt with force. The amount of rotation for turning the connecting clip can be reduced, the fastening of the connecting clip to the bolt can be facilitated, and the connecting operation between the toilet 61 and the toilet seat 62, the washing water tank 64, etc. can be performed easily and quickly. .
[0034]
Further, by pulling the operation portion 12 of the tightened connecting clip to one end side (the right side in FIG. 3) of the connecting clip, the connecting clip becomes the state shown in FIGS. 3 and 4, and is screwed with the bolt. Therefore, the connection between the toilet 61 and the toilet seat 62, the washing water tank 64, and the like can be easily and promptly released. Therefore, it is easy to remove the toilet seat 62 and the cleaning water tank 64 from the toilet bowl 61.
[0035]
Now, operations specific to the connecting clip according to the present invention will be described below.
[0036]
In the connection clip in the state shown in FIGS. 1 and 2, the operation unit 12 is moved to the right in FIG. At this time, the insertion part 30a provided integrally with the operation part 12 moves to the right in FIG. 1 inside the recesses 28a and 28b. When reaching the narrowed portions of the recesses 28a and 28b, the edges of the recesses 28a and 28b are pushed apart outward in the vertical direction in FIG. 1 to get over the holding portions 31a and 31b. The sandwiching part 30a that has passed over the holding parts 31a and 31b is sandwiched between 33a and 33b, and pushes the semi-cylindrical parts 14a and 14b outward in the vertical direction in FIG. In addition, the insertion part 30b inside the recessed parts 29a and 29b (not shown in FIG. 3) similarly moves over the holding parts 32a and 32b (FIG. 5) and moves between the recessed parts 34a and 34b (FIG. 5). Through the above operation, the connecting clip is in the state shown in FIGS.
[0037]
In the middle of this operation, the guide portion 25a of the semi-cylindrical portion 14a and the 26b of the semi-cylindrical portion 14b can contact the engagement groove 36a (regulating portion) to hold the semi-cylindrical portions 14a and 14b parallel to each other. Similarly, the guide portion 25b of the semi-cylindrical portion 14b (not shown in FIG. 3) and 26b of the semi-cylindrical portion 14b can contact the engaging groove 36b to hold the semi-cylindrical portions 14a and 14b in parallel with each other. Further, the thin hinges 15a, 15b and the annular portion 16 integrally formed at one end of each of the semi-cylindrical portions 14a, 14b are also half-stretched when the semi-cylindrical portions 14a, 14b are pushed outward in the vertical direction in FIG. The rotational movement with respect to the axial direction generated when one end of each of the cylindrical portions 14a and 14b moves inward is restricted. The engagement grooves 36a and 36b, the thin hinges 15a and 15b, and the annular portion 16 allow the semi-cylindrical portions 14a and 14b to translate in the direction perpendicular to the axial direction (outward in the vertical direction in FIG. 3).
[0038]
Due to this parallel movement, a bolt (not shown) and a portion on one end side of the female screw portion formed on the inner peripheral surface of the semi-cylindrical portions 14a and 14b are also sufficiently moved to the outside, so that there is no possibility of interference with a bolt (not shown).
[0039]
Therefore, it is possible to form the female thread portion over the entire axial length of the inner peripheral surfaces of the semi-cylindrical portions 14a and 14b, and sufficiently secure the fastening force between the resin coupling clip and the resin bolt. Is possible.
[0040]
Further, a cylindrical portion 39 having a hexagonal cross section is formed on one end side of the operation portion 12, and a tool such as a spanner can be fitted into the cylindrical portion 39 and tightened.
[0041]
【The invention's effect】
The present invention relates to a connecting clip that is screwed to the front end of a bolt when fastened by a bolt, and in particular, a connecting clip that is used when a toilet seat of a toilet, a washing water tank, or the like is attached to a toilet bowl can be configured.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an outline of a connecting clip according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along the line AA of FIG.
FIG. 3 is a longitudinal sectional view showing a state in which an operation portion of a connecting clip according to an embodiment of the present invention is moved.
4 is a cross-sectional view taken along the line BB in FIG.
FIG. 5 is a view showing a state in which a nut which is an integrally molded member made of resin is developed.
FIG. 6 is a view showing an example of a toilet sanitary appliance in which components are connected and fixed by the connecting clip of the present invention.
[Explanation of symbols]
11 Nut part 12 Operation part 14a, 14b Semi-cylindrical part 28a, 28b, 29a, 29b Guide part 30a, 30b Insertion part 36a, 36b Engaging groove (regulation part)

Claims

A nut formed of a plurality of divided cylindrical body members obtained by dividing a cylindrical body in which a female thread portion to which a bolt can be screwed is formed on an inner peripheral surface, and the divided cylindrical body member fitted to the outer periphery of the nut. and a substantially cylindrical operation member to approach and separate from each other, inside diameter first inner diameter of the substantially the split cylindrical body shaped member close the nut by moving the cylindrical operation member relative to said nut In the connecting clip, which is screwed with the bolt and when the divided cylindrical body member is separated and the inner diameter of the nut becomes the second inner diameter, the clip is not screwed with the bolt. Each of the cylindrical members is integrally provided with a guide portion, and the substantially cylindrical operation member is inserted between the guide portions and inserted between the guide portions on the inner peripheral side thereof, Said moved by the sandwiching part A regulating portion that abuts against the split cylindrical body member and regulates the inner circumferential surface of the divided cylindrical body member to move in parallel with the central axis of the bolt, and there is no sandwiched portion between the guide portions The connecting clip is characterized in that the inner diameter of the nut is the first inner diameter and the inner diameter of the nut is the second inner diameter when the inserting portion is sandwiched between the guide portions.

Provided with the holding portion that is provided in the guide portion, holds the moved insertion portion at a predetermined position, and holds the inner diameter of the nut at one of the first inner diameter and the second inner diameter. The connection clip according to claim 1, wherein:

2. The connection clip according to claim 1, wherein one end of each of the plurality of divided cylindrical members is integrally connected to each other by a thin hinge portion through an annular portion through which the bolt is inserted. .

The connection portion according to claim 1, wherein the operation portion is fixed in a circumferential direction with respect to the nut, and a fitting portion into which a fastening tool is fitted is provided in the operation portion. clip.

A toilet sanitary instrument comprising a toilet seat, a toilet bowl on which the toilet seat is rotatably fixed, and a washing water tank fixed to the toilet bowl, and an internal thread portion on which an bolt can be screwed is formed on the inner peripheral surface A nut composed of a plurality of divided cylindrical body members obtained by dividing the cylindrical body, and a substantially cylindrical operation member that is fitted to the outer periphery of the nut and moves the divided cylindrical body members toward and away from each other, By moving the substantially cylindrical operation portion relative to the nut, when the divided cylindrical body member approaches and the inner diameter of the nut becomes the first inner diameter, the bolt is screwed together, and the divided cylindrical body member In the connecting clip that is not screwed with the bolt when the nut is separated in the inner diameter direction and the inner diameter of the nut becomes the second inner diameter, each of the plurality of divided cylindrical body members is integrally provided with a guide portion. , the substantially cylindrical Misao Member, on the inner peripheral side, a narrow join the club sandwiched between said guide portion is pushed between the guide portion, the divided cylindrical in contact with the dividing cylinder shaped member which is moved by該挟join the club A restricting portion for restricting the inner peripheral surface of the body-shaped member to move in parallel with the central axis of the bolt, and when there is no clamping portion between the guide portions, the inner diameter of the nut is the first inner diameter And when the insertion portion is sandwiched between the guide portions, the inner diameter of the nut is the second inner diameter, and is connected and fixed by a connection clip. Instruments.