JP4479873B2

JP4479873B2 - Toilet fastener

Info

Publication number: JP4479873B2
Application number: JP2001287944A
Authority: JP
Inventors: 義郎寺田; 嘉久武井
Original assignee: Toto Ltd; Nifco Inc
Current assignee: Toto Ltd; Nifco Inc
Priority date: 2001-09-21
Filing date: 2001-09-21
Publication date: 2010-06-09
Anticipated expiration: 2021-09-21
Also published as: JP2003093273A

Description

【０００１】
【発明の属する技術分野】
本発明は、便器分野において、特に付帯ユニットを便器本体に取り付ける便器用締結具に関するものである。
【０００２】
【従来の技術】
洋式便器では、便器本体に対し暖房、香り、洗浄及び乾燥等の付加機能が付帯ユニットとして取り付けられる。この付帯ユニットは、便座側となる関係で便座及び蓋と共に構成される。取付構造としては、便器本体が材質的な関係で取付部分が厚くなっている点と、保守点検等に配慮しなければならない。このため、締結具としては、耐腐食性、便器本体側への設置操作や着脱操作性、多機能化するほど重くなることから固定強度、更に外観特性等からも工夫が必要となる。
【０００３】
図１１は付帯ユニットの従来取付構造及びその締結具例を示している。符号５０は便器本体側の取付部分である。ここには上下貫通した取付孔５０ａが設けられている。符号５１は付帯ユニット側の取付部分である。ここには下開口した取付孔５１ａが設けられている。そして、この締結具６０は、棒状部材６１と、ナット６２を有した筒部材６３と、筒部材６３に組み付けられるロック部材６４とからなる。棒状部材６１は、上部６１ａが取付孔５１ａに螺合されて付帯ユニットの取付部分５１の下面から突設される。筒部材６３に挿入される外周部分には、鍔状の係合部６１ｂが上下方向に複数設けられている。筒部材６３は、上外周に突設されたフランジ部６３ａと、下側外周に設けられてナット６２と螺合する雄ねじ６３ｂと、略中間径方向に切り欠かれた対の開口６３ｃと、開口６３ｃを上下に区画するよう設けられている掛止め片６３ｄとを有している。ロック部材６４は、下リング部６４ａ上に設けられた対の弾性片６４ｂと、弾性片６４ｂの上内面側に設けられて係合部６１ｂに係脱する半鍔状の係止部６４ｃ及び掛止め片６３ｄに係脱する凹部６４ｄとを有している。
【０００４】
取付作業では複数の締結具が用いられ、図１１（ａ）の如く各締結具のうち、棒状部材６１が付帯ユニット側に取り付けられ、筒部材６３が便器本体側にナット６２を介して取り付けられる。又、ロック部材６４は、筒部材６３に凹部６４ｄと掛止め片６３ｄの係合を介し組み付けられる。この状態から、棒状部材６１が筒部材６３へ挿通されるよう付帯ユニットを便器本体上に載せる。すると、付帯ユニットは、同（ｂ）に示される如く、棒状部材６１が付帯ユニットの荷重等により筒部材６３内へ押し込まれ、係合部６１ｂの鍔が係止部６１ｂに当たり弾性片６４ｂを揺動変位しつつ対応する箇所の係止部６１ｂの半鍔と係合し便器本体に取り付けられる。この締結具６０は、例えば、設置作業が付帯ユニットを便器本体上に載せるだけであるため取付作業性に優れ、棒状部材６１が見えず、筒部材６３の先端側も便器本体の見えない箇所にあるため外観特性も優れている。
【０００５】
【発明が解決しようとする課題】
上記した従来構造では、図１１の模式拡大部に示す如く、棒状部材６１側の係合部６１ｂの鍔６５が係止部６４ｃの半鍔６６を順に乗り越えて係合されるため、鍔６５及び半鍔６６の間の隙間Ｓに加え、鍔６５の半鍔６６への係合が付帯ユニット（取付部分５１）を便器本体（取付部分５０）に当接したときと一致しないことも起き、付帯ユニットが便器本体に対し鍔６５等のピッチに応じた分だけガタつく虞がある。また、棒状部材６１は、付帯ユニット側の材質等によって図１１の例の如くねじ構造を適用できず、本発明例である図１の如く抜け止め構造が適用されることもある。即ち、棒状部材６１は頭部１１を有し、該頭部１１を付帯ユニット側の凹所２ｂに収容した状態で抜け止めされる。この構造では、頭部１１を凹所２ｂに若干の余裕つまり遊びＳ1を持って配置するため、付帯ユニットが便器本体に対し前記遊びＳ1寸法に応じ上下にガタつく要因となる。しかも、設計上は、図１１（ｂ）の取付状態において、ロック部材６４の係止部６４ｃが開口６３ｃ内に確実に出し入れされるよう開口６３ｃを若干大きく形成している。このため、付帯ユニットは、上向き荷重を受けると、係止部６４ｃの上端面を開口６３の上縁に当接して規制されるまでロック部材６４及び棒状部材６１が一緒に上移動し、その上移動によりガタつくこともある。このようなガタつきは、取付操作後に修正しょうとしても難しい。
【０００６】
本発明は上記した課題を解消することを目的としている。具体的には、付帯ユニットの取付状態をより安定化できるよう上記したガタつき発生要因を確実に一掃可能にして、製品品質及び信頼性を向上することにある。他の目的は、以下に説明する内容の中で順次明らかにして行く。
【０００７】
【課題を解決するための手段】
上記目的を達成するため本発明は、図面に例示される如く、便器本体（側の取付部１）に付帯ユニット（側の取付部２）を着脱可能に結合するもので、前記付帯ユニット２に突設されて軸外周に係合部１３を有する棒状部材１０と、前記便器本体１の取付孔１ａに固定されて内部に挿通される前記棒状部材１０の係合部１３を露出する開口２８を有する筒部材２０と、前記筒部材２０に組み付けられて筒軸方向に配置される弾性片４２及び該弾性片に設けられて前記開口２８を介し前記棒状部材１０の係合部１３に係脱される係止部４３を有するロック部材４０とを備えた便器用締結具４において、前記筒部材２０は、外周に雄ねじ２４を有して前記便器本体の取付孔１ａに固定される上ソケット２１と、前記開口２８と共に上側内周に雌ねじ８ａを有した下ソケット２５とに分割され、前記下ソケット２５が前記上ソケット２１に対し前記雄・雌ねじ２４，８ａの螺合を介し回転移動可能に組み付けられ、前記係止部４３と係合部１３とを係合した状態で、前記雄・雌ねじを介し回転して下方向へ移動されると、前記ロック部材４０を押して該ロック部材及び前記棒状部材１０を下移動可能になっていることを特徴としている。
【０００８】
以上の締結具４は、棒状部材１０が付帯ユニットに突設され、上ソケット２１が便器本体の取付孔１ａにナット等を介し固定される。又、下ソケット２５は上ソケット２１の取付孔１ａから突出された雄ねじ２４に螺合して組み付けられ、ロック部材４０は下ソケット２５に開口２８と係止部４３の嵌合等により組み付けられる。この状態で、付帯ユニットは、棒状部材１０を上下ソケット２１，２５に所定荷重で挿通するようにして便器本体上に載せられる。すると、棒状部材１０の係合部１３は、下ソケット２５内に配置されているロック部材４０の係止部４３に弾性片４２の揺動を伴って係合される。その後、下ソケット２５は、前記雄・雌ねじ２４，８ａを介し回転操作されて下方向へ移動されると、ロック部材４０の弾性片４２に強く当たり、該ロック部材及びロック部材に係合している棒状部材１０を共に下移動する。即ち、この構造では、付帯ユニットを便器本体に取り付けた後、棒状部材１０をロック部材４０と共に若干下移動することにより、上記した係合部１３と係止部４３との間の遊びやピッチずれに起因したガタ発生、形態例の如く棒状部材１０が頭部１１を付帯ユニットの凹状部２ｂに収容して抜け止めすることに起因するガタ発生等を吸収でき、付帯ユニットを便器本体に確実かつ安定に固定できる。
【０００９】
以上の発明は、請求項２〜５のように具体化されることがより好ましい。即ち、
・第１に、前記下ソケット２５は、上外周が径大の操作部２６に形成されており、前記操作部を利用して回転操作される構成である。これは、下ソケット２５が径大操作部２６を有することにより、例えば、目視不能な状態（めくら作業）でも下ソケット２５を回転操作し易くしたり、他の部材（形態例のナット５）を誤って回転操作することを防ぐようにしたものである。
・第２に、前記開口２８及び弾性片４２はそれぞれ対に設けられていると共に、前記下ソケット２５は前記開口の両側に突設されて前記対応する弾性片を間に規制する挟持リブ３１を有している構成である。これは、例えば、前記した下ソケット２５を回転して下移動する操作において、弾性片４２が横又は周囲方向への応力を受けても、両側の挟持リブ３１により係止部４３と係合部１３との係合が不用意に解除しないよう弾性片４２の揺動を規制したことに意義がある。
・第３に、前記上ソケット２１は、前記便器本体に上フランジ部２２で抜け止めされかつ前記雄ねじ２４と螺合されるナット５を介し固定され、前記下ソケット２５は前記操作部２６が前記上ソケット２１の下端に当接されるまで前記雄ねじ２４に沿って上移動可能であり、前記ロック部材４０は前記弾性片４２が前記操作部２６の下端面に当接した状態から回転操作されて下移動される構成である。これは、特に、下ソケット２５とロック部材４０とが作動連結されるようにして、下ソケット２５を回転して棒状部材１０をロック部材４０と共に下移動するとき、下ソケット２５の回転量を少なくしてワンタッチ操作を可能にする。
・第４に、前記下ソケット２５は、下ソケットの上内周に組み付けられる内ナット８により前記雌ねじ８ａを形成しているか、又は、下ソケットの上内周に一体に前記雌ねじ８ａを形成しているかの何れかである。前者は形態例及び変形例１を特定し、後者は変形例２を特定したものである
【００１０】
【発明の実施の形態】
本発明の好適な形態例及び変形例を添付図面に基づいて説明する。図１は形態例の締結具を用いて便座ユニットを便器本体に取り付ける操作例を示し、同（ａ）は取付前の状態で示す断面図、同（ｂ）はロック部材の係止解除状態を示している。図２は便座ユニットを便器本体に取り付けた取付状態を示し、同（ａ）は全体の断面図、同（ｂ）は便座ユニットと便器本体の対向部の拡大図、同（ｃ）は棒状部材とロック部材との係合部の拡大図である。図３は締結具の構成部材を示す分解構成図、図４（ａ）は下ソケットとロック部材を図３の一側から見た分解構成図、図４（ｂ）は（ａ）の下ソケットを天地逆転した図である。図５は上ソケットを示し、同（ａ）は上面図、同（ｂ）は（ａ）のＡ−Ａ線断面図、図６は下ソケットの構成を示し、同（ａ）は上面図、同（ｂ）は下面図、同（ｃ）は内ナットと共に示す（ｂ）のＢ−Ｂ線断面図、同（ｄ）は内ナットと共に示す（ｂ）のＣ−Ｃ線断面図である。図７は棒状部材を示し、同（ａ）は正面図、同（ｂ）は下面図である。図８は上ソケットを便器本体に取り付けるナットを示し、同（ａ）は正面図、同（ｂ）は下面図、同（ｃ）は（ｂ）のＤ−Ｄ線断面図である。図９（ａ）と（ｂ）は上記形態の変形例を図１と図２の各（ａ）に対応して示している。図１０は上記形態の他の変形例を図２（ａ）に対応して示している。以下の説明では、先ず、本発明の締結具が用いられる便器本体及び付帯ユニットについて概説した後、締結具の形態を詳述し、使用要領や作動、及び変形例に言及する。
【００１１】
（便器形態）本発明の便器は洋式タイプのものである。便器本体上には、例えば、洗浄及び乾燥を行う付帯ユニット（ウオシュレット「登録商標」）等の付帯ユニットが取り付けられている。この付帯ユニットは、通常、便座及び蓋を一体的に有しており、荷重がその分重くなっている。このような便器において、図１と図２、図９及び図１０は、便器本体側の取付部１と付帯ユニット側の取付部２を示している。取付部１は、便器本体の前側上部に位置し、比較的厚くなっている。ここには、上下に貫通した取付孔１ａが合計４個設けられており、本発明の各締結具４の上ソケット２１がそれぞれ取り付けられる。取付部２は、付帯ユニットの厚板状となっている前側に位置し、取付部１に直接又はパッキン３を介在して配置される。ここには、取付孔１ａに対応した位置及び個数の凹所２ｂ付の取付孔２ａが設けられ、本発明の棒状部材１０が下設された状態に取り付けられる。なお、以下の説明では、理解し易くするため取付部１を便器本体、取付部２を付帯ユニットと称する。
【００１２】
（形態例）図１〜図８の締結具４は、主部材が棒状部材１０と、筒部材２０を構成している上下ソケット２１，２５と、ロック部材４０とからなり、又、上ソケット２１を便器本体１に固定するナット５及び、下ソケット２５に装着される内ナット８を有している。各部材は、耐腐食性の樹脂成形品であり、例えば、ポリプロピレン樹脂や硝子繊維入りポリプロピレン等の複合強化樹脂により形成されている。但し、材質的にはこれ以外であっても差し支えない。
【００１３】
ここで、棒状部材１０は、図３と図７の如く、頭部１１及び軸部１２を有した構造からなる。頭部１１は角形であるが、付帯ユニット２側への取付構造によっては円形に形成されることもある。軸部１２は、上下ソケット２１，２５内に収まる長さであり、係合部１３を有している。係合部１３は、軸部１２の略中間から自由端側の間の部分に形成され、複数又は多段の円状鍔１３ａからなる。以上の棒状部材１０は、付帯ユニット２の取付孔２ａに突設され、吊り下げられた状態で組み付けられる。このような、棒状部材１０自体の取付構造は、形態例の如く頭部１１が凹部２ｂに入れられ上から目視不能に覆われることが好ましい。但し、付帯ユニット側の材質等に応じ図１１のようにねじ構造でも差し支えない。
【００１４】
筒部材２０は、図３と図４及び図６の如く、螺合連結される上下ソケット２１，２５からなる。上ソケット２１は、便器本体１の取付孔１ａに固定される部材であり、上下方向の貫通孔２１ａを形成していると共に、上端周囲に設けられたフランジ部２２と、筒部分２３及び筒部分２３の下側周囲に設けられた雄ねじ２４とを有している。フランジ部２２は、取付孔１ａに差し込まれる上ソケット２１を抜け止めする。筒部分２３の全寸は、対象となる便器本体１の取付箇所の厚さ等に応じて設定される。雄ねじ２４は、ナット５と共に上ソケット２１の便器本体１に対する取付手段及び、下ソケット２５の取付手段となる。これに対し、下ソケット２５は、上端側に設けられた径大の操作部２６と、操作部２６の下端面から下方へ延びている筒部分２７に設けられて径方向に貫通している開口２８と、開口２８を上下２分するよう設けられた掛止め部２９と、各開口２８の両側にそれぞれ突設された対の挟持リブ３１と、各開口２８とそれぞれ略９０度変位した箇所に突設された規制リブ３２とからなる。
【００１５】
操作部２６は、４方向に膨出され内側を凹状に形成した配置部２６ａと、配置部２６ａの周囲壁に設けられた２個の係止穴２６ｂとを有している。配置部２６ａには前記雄ねじ２４に対応した内ナット８が装着される。即ち、内ナット８は、中心筒内面に雌ねじ８ａを形成し、又、４方向へ膨出された規制部９と、規制部９から突設された係合爪９ｂとを有し、配置部２６ａに対し規制部９を係合しかつ係合爪９ｂと係止穴２６ｂの係合により一体的に装着される。開口２８は、筒部分２７の上端側に位置して左右対に設けられ、又、掛止め部２９の存在により上開口２８ａと下開口２８ｂとに区画されている。掛止め部２９は、外面が筒周囲より若干外へ張り出し、内面が筒内と略面一となっている。筒部分２７のうち、先端（下端）筒部分２７ａ側は開口２８周囲の筒部分よりも少し細く形成されている。挟持リブ３１は、対応する開口２８の両側にそれぞれ位置して、先端筒部分２７ａの上側から操作部２６の下端面まで延びている。規制リブ３２は、左右の挟持リブ３１の間に設けられ、幅及び長さが挟持リブ３１とほぼ同じ寸法となっている。
【００１６】
以上の上ソケット２１は、取付孔１ａに差し込まれ、孔外に突出した雄ねじ２４にナット５を螺合操作して便器本体１に取り付けられる。ナット５は、図８の如く、締め付けが過剰になって便器本体１の対応部を傷付けることを防ぐ安全機能付のものである。構造的には、上端面に複数の当接突起６ａを有して雄ねじ２４に螺合されるナット本体６と、ナット本体６に組み付けられてナット本体６を角形筒部分７ａを介し回動操作し、ナット本体６の締め付けトルクが所定大になった時点を感知可能なカバー７とからなる。但し、このナット５は、単一部材からなる通常ナットを用いても差し支えない。このように、上ソケット２１をナット５又は単一ナットで取り付ける構造では、便器本体１の厚さが異なっても、雄ねじ２４を形成している部分の長さに応じ同じ締結具４を用いることができる。
【００１７】
ロック部材４０は、図３と図４の如く下側のリング部４１、リング部４１上に左右対に立設された弾性片４２、各弾性片４２に設けられて係合部１３と係脱する係止部４３及び掛止め部２９と係脱する凹部４５並びに拡開ガイド用突起４４等を有している。リング部４１の中心孔４１ａは、下ソケット２５の先端筒部分２７ａを挿通可能な径になっている。各弾性片４２は、挟持リブ３１の間に収まる板幅をなし、中心孔４１ａに先端筒部分２７ａを挿通した状態で、先端筒部分２７ａから開口２８に沿って配置される。係止部４３は、弾性片４２の先端内側に設けられ、棒状部材１０が上ソケット２１から下ソケット２５内へ押し込められたとき、係合部１３と係合して抜け止め係止する箇所であり、上開口２８ａから筒部材２７内へ配置される。また、係止部４３は、係合部１３の円状鍔１３ａに対応した半鍔状の複数の爪４３ａからなる。各凹部４５は、掛止め部２９を受け入れるよう外に窪んでおり、両弾性片４２の間の寸法が一番大きくなる箇所である。凹部４５と係止部４３との間には、凹部４５が弾性片４２の揺動変位を伴って掛止め部２９から係合解除されたとき、掛止め部２９に乗り上げられる保持部４６が設けられている。突起４４は、上に向かって次第に外側へ広がる上テーパー面を形成している。
【００１８】
（使用要領）以上の締結具４は、付帯ユニット２を便器本体１に着脱可能に取り付けるときに複数使用される。この場合、上記した如く、棒状部材１０は付帯ユニット２に取り付けられ、上ソケット２１はナット５を介し便器本体１に取り付けられ、下ソケット２５は雄・雌ねじ２４，８ａの螺合を介し上ソケット２１に取り付けられる。その後、ロック部材４０は下ソケット２５に組み付けられる。この操作では、図１（ｂ）及び図３と図４の如く両弾性片４２を対応する挟持リブ３１，３１の間に位置させ、下ソケット２５の先端筒部分２７ａを両弾性片４２の間から中心孔４１ａに挿入するよう、ロック部材４０を上側へ押し上げる。すると、両弾性片４２は、係止部４３が下開口２８ｂに達した段階から、突起４４の存在により互いに離れる方向つまり外側へ弾性変位されつつ上移動し、突起４４が上開口２８ａに落ち込んだとき、元の垂直状態に復元される。この状態では、係止部４３が上開口２８ａ内に入り込むと共に、凹部４５が掛止め部２９と係合して抜け止めされ、規制リブ３２が両弾性片４２の間から外へはみ出している。図１（ａ）は、このようにしてロック部材４０が下ソケット２５に組み付けられた状態を示している。
【００１９】
（作動）次に、付帯ユニット２が便器本体１に取付操作される。この場合は、付帯ユニット２が図１（ａ）の如く持ち上げられ、棒状部材１０を上ソケット２１の貫通孔２１ａに入れるよう位置決めされる。付帯ユニット２は、その状態から下降されて便器本体１の対応部に載せられると、棒状部材１０が図１（ａ）の拡大図の如く凹所２ｂの遊びＳ1寸法だけ上に動かされると共に、円状鍔１３ａが最上部の爪４３ａに当たった後、円状鍔１３ａが付帯ユニット２の荷重による弾性片４２の外側への弾性変位を伴って複数の爪４３ａと係合する。この構造では、最終処理として、下ソケット２５が雄・雌ねじ２４，８ａの螺合を介し若干下移動される。図２（ａ）は、このようにして下ソケット２５を下移動した後の状態を示している。即ち、下ソケット２５は、径大の操作部２６を握って雌ねじ８ａが雄ねじ２４から外れる方向へ回転操作されると、下ソケット２５が雄・雌ねじ２４，８ａの螺合を介し下方向へ移動されて、ロック部材４０の弾性片４２に強く当たった後、ロック部材４０及ロック部材４０に係合している棒状部材１０を共に下移動する。そして、棒状部材１０の頭部１１は凹所２ｂの下面に強く圧接され、それに対応して、付帯ユニット２は図２（ｂ）の如く上側の状態から下側の状態つまり便器本体１上にパッキン３を押し潰すようにして（パッキン３を省略する場合は直に）密接される。同時に、係止部４３の各爪４３ａは、下方向へ押されるため図２（ｃ）の上側の状態から下側の状態つまり係合部１３の各円状鍔１３ａ端面と密接される。この結果、従来のがた付き発生要因であった係合部１３と係止部４３との間の遊びやピッチずれに起因したガタ発生等を吸収でき、付帯ユニット２を便器本体１に確実かつより安定した状態で固定できる。
【００２０】
以上の付帯ユニット２は、長期使用により修理や交換、又、機能追加された新品と交換のため便器本体１から外したいこともある。その場合は、図１（ｂ）の如く下ソケット２５に対するロック部材４０の係合、つまり掛止め部２９と凹部４５との係合を解除し、付帯ユニット２を便器本体１から持ち上げる。この操作要領は、例えば図２（ａ）の状態において、人差し指と中指をリング部４１に引っ掛け、親指を下ソケット２５の先端（下端面）に当て、人差し指及び中指を親指側へ引っ張る。すると、ロック部材４０は、凹部４５が弾性片４２の外方向への揺動変位を伴って掛止め部２９から外れた後、保持部４６が掛止め部２９に乗り上げる。弾性片４２は、その乗り上げにより揺動変位した拡開状態に保持される。各爪４３ａは、凹部４５が掛止め部２９から外れた時点で各円状鍔１３ａとの係合を解放する。
【００２１】
（変形例１）図９は以上の締付具４について、下ソケット２５の操作部２６及び便器本体１の取付孔１ａを変形した例である。この構造では、上記形態と基本的に同じため、作用的に同じ部位に同一符号を付して変更点だけを述べる。この操作部２６は、ナット５の外径と略同じ大きさに形成され、内側に内ナット８を装着している。即ち、変形例１は、操作部２６がナット５よりも径大でなくても回転操作可能なことを示し、又、締結具４の使用状態において下ソケット２５やロック部材４０が多少なりとも見え易い便器タイプに好適なものにした例である。一方、取付孔１ａの上側には、上ソケット２１のフランジ部２２を受け入れる凹所１ｂが設けられている。従って、この構造では、フランジ部２２が凹所１ｂに入れられた状態となり、締結具４の使用数を少なくしても、付帯ユニット２と便器本体１との間の隙間を減じて取付状態での安定性を維持可能となる。
【００２２】
（変形例２）図１０は以上の締付具４について、雌ねじ８ａを下ソケット２５の内径に直に形成した例であり、それ以外は上記形態とほぼ同じくしている。この形態では、下ソケット２５が雌ねじ８ａ付きとして型成形されることにより、成形型が多少複雑となるが、上記内ナット８に起因する組立工数を省いたり部品点数を少なくして製造費を低減し易い。このように、本発明は、請求項１に特定される技術要件を具備しておればよく、細部的には便器形態や製造ロット数等に応じ種々変形可能なものである。
【００２３】
【発明の効果】
以上説明したとおり、本発明の便器用締結具は、下ソケットが上ソケットに螺合されており、該螺合を介し回転して上ソケットに沿って下移動されると、ロック部材を押して該ロック部材及び棒状部材を下移動可能にことから、従来の係合部と係止部との間の遊びやピッチずれに起因したガタ発生、形態例の如く棒状部材が頭部を付帯ユニットの凹状部に収容して抜け止めすることに起因するガタ発生等を吸収できる。これにより、本発明品は、取付操作性、着脱性、外観性等を維持しながら、従来の付帯ユニットと便器本体との間におけるガタつき発生要因を一掃して、付帯ユニットの取付状態を安定かつ確実に維持でき、適用される便器の品質及び信頼性を向上できる。
【図面の簡単な説明】
【図１】発明形態例の締結具と便器との関係を示す構成図である。
【図２】図１の付帯ユニットの取付状態を示す作動図である。
【図３】上記締結具の構成部材同士の関係を示す分解構成図である。
【図４】図３を補う要部分解図である。
【図５】上記締結具を構成している上ソケットの細部図である。
【図６】上記締結具を構成している下ソケットの細部図である。
【図７】上記締結具を構成している棒状部材の細部図である。
【図８】上記締結具を構成しているナットの細部図である。
【図９】上記締結具の変形例を示す図である。
【図１０】上記締結具の他の変形例を示す図である。
【図１１】従来の便器用締結具の問題を説明するための図である。
【符号の説明】
１…便器本体（又はその取付部で、１ａは取付孔、１ｂは凹所）
２…付帯ユニット（又はその取付部で、２ａは取付孔、２ｂは凹所）
４…締結具
５…ナット
８…内ナット（８ａは雌ねじ）
１０…棒状部材（１１は頭部、１２は軸部）
１３…係合部（１３ａは円状鍔）
２０…筒部材
２１…上ソケット（２１ａは貫通孔）
２２…フランジ部
２４…雄ねじ
２５…下ソケット
２８…開口（２８ａは上開口、２８ｂは下開口）
２９…掛止め部
３１…挟持リブ
３２…規制リブ
４０…ロック部材
４２…弾性片
４３…係止部（４３ａは爪）
４５…凹部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a toilet fastener for attaching an accessory unit to a toilet body in the toilet field.
[0002]
[Prior art]
In Western-style toilets, additional functions such as heating, aroma, washing and drying are attached to the toilet body as an accessory unit. This accessory unit is configured with a toilet seat and a lid in a relationship on the toilet seat side. As for the mounting structure, consideration must be given to the point that the mounting part is thick due to the material of the toilet body, and to maintenance and inspection. For this reason, the fasteners need to be devised in terms of corrosion resistance, installation / removal operability on the toilet body side, and the weight increases as the number of functions increases.
[0003]
FIG. 11 shows a conventional mounting structure of an accessory unit and an example of a fastener thereof. Reference numeral 50 denotes a mounting portion on the toilet body side. A mounting hole 50a penetrating vertically is provided here. Reference numeral 51 denotes an attachment portion on the side of the incidental unit. A mounting hole 51a having a lower opening is provided here. The fastener 60 includes a rod-shaped member 61, a cylinder member 63 having a nut 62, and a lock member 64 assembled to the cylinder member 63. The bar-shaped member 61 is provided so as to protrude from the lower surface of the attachment portion 51 of the incidental unit by screwing the upper portion 61a into the attachment hole 51a. A plurality of hook-shaped engaging portions 61 b are provided in the vertical direction on the outer peripheral portion inserted into the cylindrical member 63. The cylindrical member 63 includes a flange portion 63a projecting on the upper outer periphery, a male screw 63b that is provided on the lower outer periphery and engages with the nut 62, a pair of openings 63c cut out in a substantially intermediate radial direction, 63c and a latching piece 63d provided to divide 63c vertically. The lock member 64 includes a pair of elastic pieces 64b provided on the lower ring portion 64a, a semi-cylindrical locking portion 64c provided on the upper inner surface side of the elastic piece 64b and engaged with and disengaged from the engaging portion 61b, and a hook. And a recess 64d that engages with and disengages from the stop piece 63d.
[0004]
In the attaching operation, a plurality of fasteners are used, and as shown in FIG. 11A, among each fastener, the rod-like member 61 is attached to the accessory unit side, and the tubular member 63 is attached to the toilet body side via the nut 62. . Further, the lock member 64 is assembled to the cylindrical member 63 through the engagement of the concave portion 64d and the latching piece 63d. From this state, the accessory unit is placed on the toilet body so that the rod-shaped member 61 is inserted into the tubular member 63. Then, in the incidental unit, as shown in (b), the rod-shaped member 61 is pushed into the cylindrical member 63 by the load of the incidental unit, and the hook of the engaging portion 61b hits the locking portion 61b to shake the elastic piece 64b. It engages with the half hook of the latching part 61b of the corresponding location while moving and is attached to the toilet bowl body. The fastener 60 is excellent in mounting workability because, for example, the installation work only places the accessory unit on the toilet body, the rod-shaped member 61 cannot be seen, and the distal end side of the tubular member 63 is also in a place where the toilet body cannot be seen. Therefore, appearance characteristics are also excellent.
[0005]
[Problems to be solved by the invention]
In the above-described conventional structure, as shown in the schematic enlarged portion of FIG. 11, the hook 65 of the engaging portion 61b on the rod-like member 61 side is engaged with the half hook 66 of the locking portion 64c in order, so that the hook 65 and In addition to the gap S between the half-saddles 66, the engagement of the collar 65 with the half-saddle 66 may not coincide with when the accessory unit (attachment portion 51) contacts the toilet body (attachment portion 50). There is a risk that the unit will rattle from the toilet body by an amount corresponding to the pitch of the bowl 65 or the like. Further, the rod-like member 61 may not be applied with a screw structure as shown in the example of FIG. 11 depending on the material on the side of the accessory unit, but may be applied with a retaining structure as shown in FIG. That is, the rod-shaped member 61 has a head portion 11 and is prevented from coming off while the head portion 11 is housed in the recess 2b on the side of the accessory unit. In this structure, since the head 11 is disposed in the recess 2b with a slight margin, that is, a play S1, the accessory unit becomes a factor that rattles the toilet body up and down in accordance with the size of the play S1. In addition, in terms of design, the opening 63c is formed to be slightly large so that the locking portion 64c of the lock member 64 can be securely inserted into and removed from the opening 63c in the attached state of FIG. For this reason, when the accessory unit receives an upward load, the lock member 64 and the rod-shaped member 61 move upward together until the upper end surface of the locking portion 64c is brought into contact with the upper edge of the opening 63 and is restricted. It may be rattled by movement. Such rattling is difficult even when trying to correct after the mounting operation.
[0006]
The present invention aims to solve the above-described problems. Specifically, it is to improve the product quality and reliability by making it possible to surely eliminate the above-mentioned rattling occurrence factor so that the attachment state of the accessory unit can be further stabilized. Other objects will be clarified sequentially in the contents described below.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention, as illustrated in the drawings, removably couples an accessory unit (side attachment portion 2) to a toilet body (side attachment portion 1). A rod-shaped member 10 that protrudes and has an engaging portion 13 on the outer periphery of the shaft, and an opening 28 that exposes the engaging portion 13 of the rod-shaped member 10 that is fixed to the mounting hole 1a of the toilet body 1 and is inserted through the inside. The cylindrical member 20, the elastic piece 42 assembled to the cylindrical member 20 and disposed in the cylinder axial direction, and the engagement member 13 of the rod-like member 10 is engaged with and disengaged through the opening 28 provided on the elastic piece. In the toilet bowl fastener 4 having a locking member 40 having a locking portion 43, the tubular member 20 has an upper socket 21 having a male screw 24 on the outer periphery and fixed to the mounting hole 1a of the toilet body. , A female on the upper inner periphery together with the opening 28 The lower socket 25 is divided into a lower socket 25 having 8 a, and the lower socket 25 is assembled to the upper socket 21 so as to be able to rotate and move through the engagement of the male and female screws 24, 8 a, and engages with the locking portion 43. In a state where it is engaged with the portion 13, when it is rotated downward through the male / female screw and moved downward, the lock member 40 can be pushed to move the lock member and the rod-shaped member 10 downward. It is characterized by.
[0008]
As for the above fastener 4, the rod-shaped member 10 protrudes in an incidental unit, and the upper socket 21 is fixed to the attachment hole 1a of a toilet bowl main body via a nut etc. The lower socket 25 is assembled by being screwed into the male screw 24 protruding from the mounting hole 1 a of the upper socket 21, and the lock member 40 is assembled to the lower socket 25 by fitting the opening 28 and the engaging portion 43. In this state, the accessory unit is placed on the toilet body so that the rod-shaped member 10 is inserted into the upper and lower sockets 21 and 25 with a predetermined load. Then, the engaging portion 13 of the rod-shaped member 10 is engaged with the engaging portion 43 of the lock member 40 disposed in the lower socket 25 with the swing of the elastic piece 42. Thereafter, when the lower socket 25 is rotated through the male / female screws 24 and 8a and moved downward, the lower socket 25 strongly contacts the elastic piece 42 of the lock member 40 and engages with the lock member and the lock member. The rod-shaped members 10 are moved downward together. In other words, in this structure, after attaching the accessory unit to the toilet body, the bar-like member 10 is moved slightly downward together with the lock member 40, so that the play and pitch deviation between the engaging portion 13 and the engaging portion 43 described above are eliminated. Can be absorbed by the rod-like member 10 when the head member 11 is housed in the concave portion 2b of the accessory unit to prevent it from coming off, and the accessory unit can be securely attached to the toilet body. Can be fixed stably.
[0009]
The above invention is more preferably embodied as in claims 2-5. That is,
First, the lower socket 25 has a configuration in which an upper outer periphery is formed in an operation portion 26 having a large diameter, and is rotated using the operation portion. This is because the lower socket 25 has the large-diameter operation portion 26, for example, to make it easier to rotate the lower socket 25 even in a state where it cannot be visually observed (blown work), or to attach another member (the nut 5 of the embodiment). This is designed to prevent accidental rotation.
Secondly, the opening 28 and the elastic piece 42 are provided in pairs, and the lower socket 25 protrudes on both sides of the opening and has a holding rib 31 for restricting the corresponding elastic piece therebetween. It is the structure which has. For example, in the operation of rotating and moving the lower socket 25 described above, even if the elastic piece 42 receives stress in the lateral or peripheral direction, the engaging portion 43 and the engaging portion are held by the holding ribs 31 on both sides. Significantly, the swinging of the elastic piece 42 is restricted so that the engagement with 13 is not inadvertently released.
Thirdly, the upper socket 21 is fixed to the toilet body via a nut 5 that is secured to the toilet body by an upper flange portion 22 and screwed with the male screw 24, and the lower socket 25 is fixed to the operation portion 26 by the operation portion 26. The lock member 40 can be moved upward along the male screw 24 until it contacts the lower end of the upper socket 21, and the lock member 40 is rotated from a state where the elastic piece 42 contacts the lower end surface of the operation portion 26. It is the structure moved down. In particular, when the lower socket 25 is rotated and the rod-like member 10 is moved downward together with the lock member 40 so that the lower socket 25 and the lock member 40 are operatively connected, the amount of rotation of the lower socket 25 is reduced. To enable one-touch operation.
Fourth, the lower socket 25 forms the female screw 8a with an inner nut 8 assembled to the upper inner periphery of the lower socket, or forms the female screw 8a integrally with the upper inner periphery of the lower socket. Either. The former specifies form example and modification 1, and the latter specifies modification 2.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments and modifications of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows an operation example for attaching a toilet seat unit to a toilet body using the fastener of the embodiment, FIG. 1 (a) is a cross-sectional view showing a state before attachment, and FIG. 1 (b) shows an unlocking state of the lock member. Show. 2A and 2B show an attached state in which the toilet seat unit is attached to the toilet body, wherein FIG. 2A is a sectional view of the whole, FIG. 2B is an enlarged view of a facing portion of the toilet seat unit and the toilet body, and FIG. It is an enlarged view of the engaging part of a lock member. 3 is an exploded configuration diagram showing components of the fastener, FIG. 4A is an exploded configuration diagram of the lower socket and the lock member as viewed from one side of FIG. 3, and FIG. 4B is the lower socket of FIG. FIG. 5A shows an upper socket, FIG. 5A is a top view, FIG. 5B is a sectional view taken along line AA of FIG. 6A, FIG. 6 shows a configuration of the lower socket, and FIG. (B) is a bottom view, (c) is a sectional view taken along the line BB of (b) shown together with the inner nut, and (d) is a sectional view taken along the line CC of (b) shown together with the inner nut. FIG. 7 shows a rod-shaped member, where FIG. 7 (a) is a front view and FIG. 7 (b) is a bottom view. 8A and 8B show nuts for attaching the upper socket to the toilet body. FIG. 8A is a front view, FIG. 8B is a bottom view, and FIG. 8C is a sectional view taken along the line DD of FIG. 9 (a) and 9 (b) show a modification of the above embodiment corresponding to each (a) of FIGS. FIG. 10 shows another modification of the above embodiment corresponding to FIG. In the following description, first, the toilet body and the accessory unit in which the fastener of the present invention is used will be outlined, then the form of the fastener will be described in detail, and the usage procedures, operations, and modifications will be referred to.
[0011]
(Toilet bowl type) The toilet bowl of the present invention is of a Western type. On the toilet body, for example, an accessory unit such as an accessory unit (washlet “registered trademark”) for cleaning and drying is attached. This accessory unit usually has a toilet seat and a lid integrally, and the load is increased accordingly. In such a toilet, FIGS. 1, 2, 9, and 10 show a toilet body mounting portion 1 and an accessory unit mounting portion 2. The attaching part 1 is located in the front upper part of the toilet body, and is relatively thick. Here, a total of four attachment holes 1a penetrating vertically are provided, and the upper socket 21 of each fastener 4 of the present invention is attached thereto. The attachment portion 2 is located on the front side of the accessory unit which is a thick plate, and is disposed directly on the attachment portion 1 or with the packing 3 interposed therebetween. Here, there are provided mounting holes 2a with positions and the number of recesses 2b corresponding to the mounting holes 1a, and the rod-shaped member 10 of the present invention is mounted in a lowered state. In the following description, in order to facilitate understanding, the attachment portion 1 is referred to as a toilet body, and the attachment portion 2 is referred to as an accessory unit.
[0012]
(Embodiment) The fastener 4 shown in FIGS. 1 to 8 is composed of a bar-shaped member 10, upper and lower sockets 21 and 25 constituting a cylindrical member 20, and a lock member 40. And the inner nut 8 to be attached to the lower socket 25. Each member is a corrosion-resistant resin molded product, and is formed of, for example, a composite reinforced resin such as polypropylene resin or glass-filled polypropylene. However, other materials may be used.
[0013]
Here, the rod-shaped member 10 has a structure having a head portion 11 and a shaft portion 12 as shown in FIGS. 3 and 7. The head 11 has a square shape, but may be formed in a circular shape depending on the attachment structure to the accessory unit 2 side. The shaft portion 12 has a length that fits in the upper and lower sockets 21 and 25 and has an engaging portion 13. The engaging portion 13 is formed in a portion between the substantially middle portion of the shaft portion 12 and the free end side, and includes a plurality of or multi-stage circular rods 13a. The above rod-shaped member 10 protrudes from the attachment hole 2a of the accessory unit 2 and is assembled in a suspended state. In such a mounting structure of the rod-shaped member 10 itself, it is preferable that the head portion 11 is put in the recess 2b and covered from the top so that it cannot be seen from the top as in the embodiment. However, a screw structure may be used as shown in FIG.
[0014]
The cylindrical member 20 includes upper and lower sockets 21 and 25 that are screwed together as shown in FIGS. The upper socket 21 is a member that is fixed to the mounting hole 1a of the toilet body 1. The upper socket 21 forms a vertical through-hole 21a, a flange portion 22 provided around the upper end, a tubular portion 23, and a tubular portion. 23 and a male screw 24 provided around the lower side of 23. The flange portion 22 prevents the upper socket 21 inserted into the mounting hole 1a from coming off. The total size of the tubular portion 23 is set according to the thickness of the attachment location of the target toilet body 1. The male screw 24 is a means for attaching the upper socket 21 to the toilet body 1 and a means for attaching the lower socket 25 together with the nut 5. On the other hand, the lower socket 25 is provided in the large-diameter operation portion 26 provided on the upper end side, and in the cylindrical portion 27 extending downward from the lower end surface of the operation portion 26, and the opening penetrating in the radial direction 28, a latching portion 29 provided so as to divide the opening 28 vertically, a pair of sandwiching ribs 31 projecting on both sides of each opening 28, and a position displaced from each opening 28 by approximately 90 degrees. It consists of the protruding regulation rib 32.
[0015]
The operation portion 26 includes a placement portion 26a that is bulged in four directions and has a concave inside, and two locking holes 26b provided in the peripheral wall of the placement portion 26a. An inner nut 8 corresponding to the male screw 24 is attached to the arrangement portion 26a. That is, the inner nut 8 has a female thread 8a formed on the inner surface of the central cylinder, and has a restricting portion 9 bulged in four directions and an engaging claw 9b protruding from the restricting portion 9, and an arrangement portion The restricting portion 9 is engaged with 26a and is mounted integrally by engaging the engaging claw 9b and the locking hole 26b. The openings 28 are provided in a pair of left and right positions on the upper end side of the cylindrical portion 27, and are partitioned into an upper opening 28 a and a lower opening 28 b by the presence of the latching portion 29. The latch portion 29 has an outer surface slightly protruding from the periphery of the cylinder, and an inner surface thereof is substantially flush with the inside of the cylinder. Of the tube portion 27, the tip (lower end) tube portion 27 a side is formed slightly narrower than the tube portion around the opening 28. The sandwiching ribs 31 are respectively located on both sides of the corresponding opening 28 and extend from the upper side of the distal end cylindrical portion 27 a to the lower end surface of the operation portion 26. The restriction rib 32 is provided between the left and right sandwiching ribs 31 and has the same width and length as the sandwiching rib 31.
[0016]
The upper socket 21 is inserted into the attachment hole 1a and attached to the toilet body 1 by screwing the nut 5 into the male screw 24 protruding out of the hole. As shown in FIG. 8, the nut 5 has a safety function to prevent excessive tightening and damage to the corresponding part of the toilet body 1. Structurally, the nut main body 6 having a plurality of abutting protrusions 6a on the upper end surface and screwed into the male screw 24, and the nut main body 6 assembled to the nut main body 6 and rotating the nut main body 6 via the rectangular tube portion 7a. And a cover 7 capable of sensing when the tightening torque of the nut body 6 reaches a predetermined value. However, the nut 5 may be a normal nut made of a single member. As described above, in the structure in which the upper socket 21 is attached with the nut 5 or the single nut, the same fastener 4 is used according to the length of the part forming the male screw 24 even if the thickness of the toilet body 1 is different. Can do.
[0017]
3 and 4, the lock member 40 is provided on the lower ring portion 41, the elastic pieces 42 erected in a pair on the left and right on the ring portion 41, and provided on each elastic piece 42 to be engaged with and disengaged from the engagement portion 13. A locking portion 43 to be engaged, a recessed portion 45 to be engaged with and disengaged from the latching portion 29, an expansion guide projection 44 and the like. The center hole 41a of the ring portion 41 has a diameter that allows the distal end cylindrical portion 27a of the lower socket 25 to be inserted. Each elastic piece 42 has a plate width that fits between the holding ribs 31, and is disposed along the opening 28 from the tip tube portion 27 a with the tip tube portion 27 a inserted through the center hole 41 a. The locking portion 43 is provided on the inner side of the tip of the elastic piece 42, and is engaged with the engaging portion 13 to prevent the rod-like member 10 from being pulled out and locked when the rod-shaped member 10 is pushed into the lower socket 25 from the upper socket 21. Yes, it is arranged in the cylindrical member 27 from the upper opening 28a. The locking portion 43 includes a plurality of semi-cylindrical claws 43 a corresponding to the circular flange 13 a of the engaging portion 13. Each recessed part 45 is recessed outside so as to receive the latching part 29, and is a place where the dimension between both elastic pieces 42 is the largest. Between the recess 45 and the locking portion 43, there is provided a holding portion 46 that rides on the latching portion 29 when the recess 45 is released from the latching portion 29 with the swinging displacement of the elastic piece 42. It has been. The protrusion 44 forms an upper tapered surface that gradually expands outward.
[0018]
(Usage Procedure) A plurality of the fasteners 4 are used when the accessory unit 2 is detachably attached to the toilet body 1. In this case, as described above, the rod-like member 10 is attached to the accessory unit 2, the upper socket 21 is attached to the toilet body 1 via the nut 5, and the lower socket 25 is connected to the upper socket via male and female screws 24, 8 a. 21 is attached. Thereafter, the lock member 40 is assembled to the lower socket 25. In this operation, both elastic pieces 42 are positioned between the corresponding holding ribs 31, 31 as shown in FIGS. 1B, 3, and 4, and the distal end cylindrical portion 27 a of the lower socket 25 is placed between the elastic pieces 42. The lock member 40 is pushed upward so as to be inserted into the center hole 41a. Then, both elastic pieces 42 move upward while being elastically displaced away from each other, that is, outward due to the presence of the protrusion 44 from the stage where the locking portion 43 reaches the lower opening 28b, and the protrusion 44 falls into the upper opening 28a. When it is restored to its original vertical state. In this state, the locking portion 43 enters the upper opening 28a, and the concave portion 45 engages with the latching portion 29 and is prevented from coming off, so that the regulation rib 32 protrudes from between the elastic pieces 42. FIG. 1A shows a state in which the lock member 40 is assembled to the lower socket 25 in this way.
[0019]
(Operation) Next, the accessory unit 2 is attached to the toilet body 1. In this case, the accessory unit 2 is lifted as shown in FIG. 1A and positioned so that the rod-like member 10 is put into the through hole 21a of the upper socket 21. When the accessory unit 2 is lowered from the state and placed on the corresponding portion of the toilet body 1, the rod-like member 10 is moved upward by the play S1 dimension of the recess 2b as shown in the enlarged view of FIG. After the circular hook 13a hits the uppermost claw 43a, the circular hook 13a engages with the plurality of claws 43a with elastic displacement to the outside of the elastic piece 42 due to the load of the incidental unit 2. In this structure, as a final process, the lower socket 25 is slightly moved downward through screwing of the male and female screws 24 and 8a. FIG. 2A shows a state after the lower socket 25 is moved down in this way. That is, when the lower socket 25 is gripped by the large-diameter operation portion 26 and is rotated in a direction in which the female screw 8a is removed from the male screw 24, the lower socket 25 is moved downward through the screwing of the male / female screws 24 and 8a. Then, after strongly hitting the elastic piece 42 of the lock member 40, the lock member 40 and the rod-shaped member 10 engaged with the lock member 40 are both moved downward. The head 11 of the rod-like member 10 is strongly pressed against the lower surface of the recess 2b. Correspondingly, the accessory unit 2 moves from the upper state to the lower state, that is, on the toilet body 1 as shown in FIG. The packing 3 is crushed (directly when the packing 3 is omitted). At the same time, each claw 43a of the locking portion 43 is pushed downward, so that it is brought into close contact with the state from the upper side in FIG. As a result, it is possible to absorb the play between the engaging portion 13 and the locking portion 43, which has been a cause of rattling, and the occurrence of looseness due to pitch deviation, and the accessory unit 2 can be securely and securely attached to the toilet body 1. Can be fixed in a more stable state.
[0020]
The above accessory unit 2 may be removed from the toilet body 1 for repair or replacement after a long-term use, or for replacement with a new function-added unit. In that case, as shown in FIG. 1B, the engagement of the lock member 40 with the lower socket 25, that is, the engagement between the latching portion 29 and the recess 45 is released, and the auxiliary unit 2 is lifted from the toilet body 1. 2A, for example, the index finger and the middle finger are hooked on the ring portion 41, the thumb is applied to the tip (lower end surface) of the lower socket 25, and the index finger and the middle finger are pulled to the thumb side. Then, after the recess 45 is detached from the latching portion 29 with the swinging displacement of the elastic piece 42 in the outward direction, the holding portion 46 rides on the latching portion 29. The elastic piece 42 is held in an expanded state in which the elastic piece 42 is oscillated and displaced by the ride. Each claw 43a releases the engagement with each circular rod 13a when the recess 45 is detached from the latching portion 29.
[0021]
(Modification 1) FIG. 9 shows an example in which the operation unit 26 of the lower socket 25 and the mounting hole 1a of the toilet body 1 are modified with respect to the above-described fastener 4. Since this structure is basically the same as the above-described embodiment, the same reference numerals are given to the same functional parts, and only the changes are described. The operation portion 26 is formed to have substantially the same size as the outer diameter of the nut 5, and the inner nut 8 is mounted inside. That is, the modified example 1 shows that the operation portion 26 can be rotated even if the diameter is not larger than that of the nut 5, and the lower socket 25 and the lock member 40 are somewhat visible when the fastener 4 is used. This is an example suitable for an easy toilet type. On the other hand, a recess 1b for receiving the flange portion 22 of the upper socket 21 is provided above the mounting hole 1a. Therefore, in this structure, the flange portion 22 is put in the recess 1b, and even if the number of the fasteners 4 is reduced, the gap between the accessory unit 2 and the toilet body 1 is reduced and the attached state is reduced. It becomes possible to maintain the stability.
[0022]
(Modification 2) FIG. 10 shows an example in which the female screw 8a is formed directly on the inner diameter of the lower socket 25 with respect to the above-described fastener 4, and the rest is substantially the same as the above embodiment. In this embodiment, since the lower socket 25 is molded with the female screw 8a, the molding die becomes somewhat complicated. However, the manufacturing cost can be reduced by reducing the number of parts and the number of parts due to the inner nut 8. Easy to do. As described above, the present invention only needs to have the technical requirements specified in claim 1, and can be variously modified according to the toilet form, the number of production lots, and the like.
[0023]
【The invention's effect】
As described above, in the toilet fastener of the present invention, the lower socket is screwed to the upper socket, and when the lower socket is rotated and moved downward along the upper socket, the lock member is pushed to move the lower socket. Since the lock member and the rod-shaped member can be moved downward, the play occurs due to play and pitch deviation between the conventional engaging portion and the locking portion, and the rod-shaped member has a head-like concave shape as in the embodiment. It is possible to absorb the occurrence of looseness caused by being housed in the portion and preventing it from coming off. As a result, the product according to the present invention eliminates the cause of rattling between the conventional accessory unit and the toilet body while maintaining attachment operability, detachability, appearance, etc., and stabilizes the attachment state of the accessory unit. And it can maintain reliably and can improve the quality and reliability of the toilet bowl applied.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing a relationship between a fastener and a toilet of an embodiment of the invention.
FIG. 2 is an operation diagram showing an attached state of the accessory unit of FIG. 1;
FIG. 3 is an exploded configuration diagram showing the relationship between the constituent members of the fastener.
FIG. 4 is an exploded view of essential parts supplementing FIG. 3;
FIG. 5 is a detailed view of an upper socket constituting the fastener.
FIG. 6 is a detailed view of a lower socket constituting the fastener.
FIG. 7 is a detailed view of a rod-shaped member constituting the fastener.
FIG. 8 is a detailed view of a nut constituting the fastener.
FIG. 9 is a view showing a modification of the fastener.
FIG. 10 is a view showing another modified example of the fastener.
FIG. 11 is a view for explaining a problem of a conventional toilet fastener.
[Explanation of symbols]
1 ... Toilet body (or its mounting part, 1a is a mounting hole, 1b is a recess)
2 ... accessory unit (or its attachment part, 2a is a mounting hole, 2b is a recess)
4 ... Fastener
5 ... Nut
8 ... Inner nut (8a is female screw)
10 ... Rod-shaped member (11 is head, 12 is shaft)
13 ... engaging part (13a is a circular hook)
20 ... Cylinder member
21 ... Upper socket (21a is a through hole)
22 ... Flange
24 ... Male thread
25 ... Lower socket
28 ... Opening (28a is upper opening, 28b is lower opening)
29 ... Hanging part
31 ... Nipping rib
32 ... Regulation rib
40: Lock member
42. Elastic piece
43 ... locking part (43a is a nail)
45 ... Recess

Claims

The accessory unit is detachably coupled to the toilet body, the rod-like member protruding from the accessory unit and having an engaging portion on the outer periphery of the shaft, and fixed to the mounting hole of the toilet body and inserted through the inside A cylindrical member having an opening that exposes the engaging portion of the rod-shaped member, an elastic piece assembled to the cylindrical member and disposed in the cylinder axial direction, and the engagement of the rod-shaped member provided on the elastic piece via the opening In a toilet bowl fastener comprising a locking member having a locking part to be engaged with and disengaged from the part,
The cylindrical member is divided into an upper socket having a male screw on the outer periphery and fixed to the mounting hole of the toilet body, and a lower socket having a female screw on the upper inner periphery together with the opening. The socket is assembled so as to be able to rotate and move through a threaded engagement of the male / female screw, and is rotated downward through the male / female screw in a state in which the engaging part and the engaging part are engaged. And a toilet fastener, wherein the lock member and the rod-shaped member can be moved downward by pushing the lock member.

2. The toilet fastener according to claim 1, wherein the lower socket is formed in an operation portion having a large diameter at an upper outer periphery, and is rotated using the operation portion.

2. The opening and the elastic piece are provided in pairs, respectively, and the lower socket has a holding rib that protrudes on both sides of the opening and restricts the corresponding elastic piece therebetween. Fastener for toilet.

The upper socket is fixed to the toilet body through a nut that is secured to the toilet body by an upper flange portion and screwed with the male screw, and the lower socket is moved until the operation portion comes into contact with a lower end of the upper socket. The toilet bowl according to any one of claims 1 to 3, wherein the toilet member is movable upward along a male screw, and the lock member is rotated downward from a state in which the elastic piece is in contact with a lower end surface of the operation portion. Fasteners.

The lower socket is either formed with the internal thread by an inner nut assembled to the upper inner periphery of the lower socket, or formed integrally with the upper inner periphery of the lower socket. The toilet fastener according to any one of 1 to 4.