JP4718062B2

JP4718062B2 - nut

Info

Publication number: JP4718062B2
Application number: JP2001277533A
Authority: JP
Inventors: 秀史深谷; 晃椙山
Original assignee: Mitsuchi Corp
Current assignee: Mitsuchi Corp
Priority date: 2001-09-13
Filing date: 2001-09-13
Publication date: 2011-07-06
Anticipated expiration: 2021-09-13
Also published as: JP2003083316A

Description

【０００１】
【発明の属する技術分野】
本発明は、ナットに関する。
【０００２】
【従来の技術】
従来、ボルトに対し、締め付け位置まで回転することなく挿入し、締め付け位置で若干回転することにより完締めできるナットが知られている（例えば実公昭５５−４８１７１号公報）。
【０００３】
このナットは、そのナット内にその周方向の全周にわたって複数の溝付セグメントを軸方向に移動可能に設け、ボルトを回転することなくナット内へ挿入することで複数の溝付セグメントを押して連結できるようになっている。
【０００４】
【発明が解決しようとする課題】
前記従来のような周方向の全周にわたって溝付セグメントを配置するナットにおいては、ナットの軸芯の全周にわたって複数のセグメントが配置されるため、そのナットの外径が大きくなる。そのため、ナットの占有空間が大きくなり、狭い場所での使用ができない問題がある。
【０００５】
そこで本発明は、無回転でボルトなどの連結棒に挿入することができ、また、必要時には分離でき、かつ、狭い場所での使用が要求される場合においても対応できるナットを提供することを目的とするものである。
【０００６】
【課題を解決するための手段】
前記の課題を解決するために、請求項１記載の第１の発明は、平板状のケース板を同一平面内において一対、これらの間に所定の隙間を有して平行に配置して、該隙間により連結棒挿入孔を形成し、該連結棒挿入孔における連結棒挿入方向を前後方向とし、その連結棒挿入側を前側、反対側を後側とした場合、前記両ケース板の夫々の内側には、後方が外側へ開くテーパ面を形成し、該両テーパ面部には夫々係止部材をテーパ面に沿って前後方向に移動可能に配置し、更に、両係止部材の夫々の内側面を、前記連結棒挿入孔の軸心に平行する方向において凹凸面に形成し、更に、前記係止部材を付勢手段により前方へ付勢し、更に、前記両ケース板の表裏面を板材で被覆したことを特徴とするものである。
【０００７】
請求項２記載の第２の発明は、平板状のケース板を同一平面内において一対、これらの間に所定の隙間を有して平行に配置して、該隙間により連結棒挿入孔を形成し、該連結棒挿入孔における連結棒挿入方向を前後方向とし、その連結棒挿入側を前側、反対側を後側とした場合、前記両ケース板の夫々の内側には、後方が外側へ開くテーパ面を形成し、該両テーパ面部には夫々係止部材をテーパ面に沿って前後方向に移動可能に配置し、更に、両係止部材の夫々の内側面を、前記連結棒挿入孔の軸心と平行する平坦面に形成し、更に、前記係止部材を付勢手段により前方へ付勢し、更に、前記両ケース板の表裏面を板材で被覆したことを特徴とするものである。
【０００８】
請求項３記載の第３の発明は、平板状の裏カバーの表面に、平板状の裏スペーサを一対、これらの間に所定の隙間を有して平行に配置して該隙間により連結棒挿入孔を形成し、該連結棒挿入孔における連結棒挿入方向を前後方向とし、その連結棒挿入側を前側、反対側を後側とした場合、前記両裏スペーサ上に夫々平板状のケース板を配置してこれら一対のケース板の間に所定の隙間を有して連結棒挿入孔を前後方向に形成し、前記両ケース板の夫々の内側には、後方が外側へ開くテーパ面を形成し、該両テーパ面部には夫々係止部材をテーパ面に沿って前後方向に移動可能に配置し、更に、両係止部材の夫々の内側面を、前記連結棒挿入孔の軸心に平行する方向において凹凸面に形成し、更に、前記係止部材を付勢手段により前方へ付勢し、更に、前記両係止部材の表面には、夫々天板状の表スペーサを配置し、該両表スペーサには、前記ケース板に形成したテーパ面に沿った案内長孔を形成し、前記両係止部材の表面に案内ピンを突設して該案内ピンを前記案内長孔に摺動可能に嵌合し、更に、前記両表スペーサの表面を平板状の表カバーで被覆したことを特徴とするものである。
【０００９】
請求項４記載の第４の発明は、平板状の裏カバーの表面に、平板状の裏スペーサを一対、これらの間に所定の隙間を有して平行に配置して該隙間により連結棒挿入孔を形成し、該連結棒挿入孔における連結棒挿入方向を前後方向とし、その連結棒挿入側を前側、反対側を後側とした場合、前記両裏スペーサ上に夫々平板状のケース板を配置してこれら一対のケース板の間に所定の隙間を有して連結棒挿入孔を前後方向に形成し、前記両ケース板の夫々の内側には、後方が外側へ開くテーパ面を形成し、該両テーパ面部には夫々係止部材をテーパ面に沿って前後方向に移動可能に配置し、更に、両係止部材の夫々の内側面を、前記連結棒挿入孔の軸心と平行する平坦面に形成し、更に、前記係止部材を付勢手段により前方へ付勢し、更に、前記両係止部材の表面には、夫々天板状の表スペーサを配置し、該両表スペーサには、前記ケース板に形成したテーパ面に沿った案内長孔を形成し、前記両係止部材の表面に案内ピンを突設して該案内ピンを前記案内長孔に摺動可能に嵌合し、更に、前記両表スペーサの表面を平板状の表カバーで被覆したことを特徴とするものである。
【００１０】
請求項５記載の第５の発明は、前記第１乃至第４のいずれかの発明において、前記両係止部材をナットの外部から後方へ移動できる解除手段を設けたものである。
【００１１】
【発明の実施の形態】
図に示す実施例に基づいて本発明の実施の形態について説明する。
【００１２】
図１乃至図９は、連結棒として螺旋溝を形成したボルトを用い、このボルトに連結するようにしたナットの実施例である。
【００１３】
ナット１は図１に示すように、各平板材を積層して板状に形成されており、その構成する部品である裏カバー２は金属の平板で形成されている。
【００１４】
前記裏カバー２の表面には一対の裏スペーサ３，４が、同一平面内において、ボルト５を挿通する中央部Ｘ１−Ｘ２を挟んで左右に所定の隙間Ｄ１を有して平行に配置され、これらの裏スペーサ３，４間の隙間Ｄ１が、前後方向（Ｘ１−Ｘ２方向を前後方向とする）に貫通するボルト挿通孔の一部を形成している。該裏スペーサ３，４は金属の平板で形成されている。
【００１５】
前記一対の裏スペーサ３，４の表面側には一対のケース板６，７が、前記ボルト５が挿通される中央部Ｘ１−Ｘ２を挟んで所定の隙間Ｄ２を有して平行に配置され、これら一対のケース板６，７間の隙間Ｄ２が前後方向に貫通するボルト挿通孔の一部を形成している。該一対のケース板６，７の夫々の内側面には、後方（Ｘ２側）が外側へ拡がるテーパ面８，９が形成されている。該一対のケース板６，７は夫々金属の平板で形成されている。
【００１６】
前記一対のケース板６，７の夫々の内側には夫々楔型の係止部材１０，１１が配置されている。該各係止部材１０、１１の内側面には前記ボルト５の挿通方向（前記Ｘ１−Ｘ２方向）に沿って山と谷からなる歯状の凹凸面であるねじ溝１０ａ，１１ａが刻設されている。該ねじ溝１０ａ，１１ａは、図６（ｂ）に示すように、ボルト５のねじ溝５ａのねじピッチと同等に形成され、かつ、ボルト５のねじ溝に沿って噛合するように、図６（ｃ）に示すようにボルト５のねじ溝５ａと略同等の円弧の一部で形成されている。また、該係止部材１０，１１の外側面は前記テーパ面８，９に沿ったテーパ面１０ｂ，１１ｂに形成されている。更に、前記各係止部材１０，１１は金属で形成され、またその表面側には夫々案内ピン１２，１３が上方へ突設されている。
【００１７】
更に、両係止部材１０，１１の両ねじ溝１０ａ，１１ａは、図５に示すようにボルト５を挿入してねじ溝１０ａ，１１ａに噛合させた場合に、両係止部材１０，１１のテーパ面１０ｂ，１１ｂがテーパ面８，９に当接した状態で両ねじ溝１０ａ，１１ａの相互が、図７のＰで示すように１／２ピッチだけボルト挿通方向へずれるように設定されている。
【００１８】
このように両ねじ溝１０ａ，１１ａ相互のピッチを１／２ずらす方法は、図７に示すように、ねじ溝１０ａ，１１ａを同一状態に形成した両係止部材１０，１１をボルト挿通方向へ１／２ピッチずらしてもよく、また、図８に示すように、ねじ溝１０ａ，１１ａを相互にボルト挿通方向に１／２ピッチずらして形成した両係止部材１０，１１を、ボルト挿通方向において同一位置に配置するようにしてもよく、更に、図９に示すように、ねじ溝１０ａ，１１ａを同一状態に形成した両係止部材１０，１１を用い、テーパ面８，９を相互にボルト挿通方向へ所定量Ｐ、すなわちねじ溝１／２ピッチだけずらしてもよい。
【００１９】
前記一対のケース板６，７の表面には金属の平板からなる一対の表スペーサ１４，１５が、前記一対の裏スペーサ３，４と同様に所定の隙間Ｄ３を有して平行に配置されている。該一対の表スペーサ１４，１５には、前記係止部材１０，１１の案内ピン１２，１３が摺動可能に嵌合する案内長孔１６，１７が表裏方向に貫通して形成されている。該案内長孔１６，１７には前記テーパ面８，９に沿って、すなわち、後方が外側へ拡がるように傾斜して形成されている。また、案内長孔１６，１７の前側にはストッパ面１６ａ，１７ａが形成されている。
【００２０】
前記各隙間Ｄ１，Ｄ２，Ｄ３によって、前後方向に貫通するボルト挿通孔４０を形成している。
【００２１】
また、前記ケース板６，７には、テーパ面８，９の後部において収納室１８，１９が形成されており、該収納室１８，１９内に付勢部材２０，２１を収納し、前記裏スペーサ３，４と表スペーサ１４，１５で付勢部材２０，２１の外脱が阻止されている。そして、該付勢部材２０，２１により前記係止部材１０，１１を常時前方へ、すなわち両係止部材１０，１１の対向間隔が狭くなるように付勢している。なお、該付勢部材（付勢手段）は、図の例ではコイルスプリングを使用したが、ゴム等の弾性材料からなる部材を使用してもよい。
【００２２】
前記一対の表スペーサ１４，１５の表面側には、これらの間にわたる１枚の表カバー２２が配置されている。該表カバー２２には、前記案内長孔１６，１７と同一位置において、かつ、同一方向に傾斜する一対の案内長孔２３，２４が形成されている。該一対の案内長孔２３，２４は表カバー２２の表裏方向に貫通している。また、該表カバー２２は金属の平板で形成されている。
【００２３】
前記表カバー２２の表面側には、抜き治具２５が前後方向に摺動可能に配置されている。
【００２４】
前記抜き治具２５は、後部に幅の広い係止部２６を有する金属の平板で形成され、該係止部２６に前端係止面２６ａと後端係止面２６ｂが形成されている。更に、該抜き治具２５の裏側には、前記両案内ピン１２，１３が夫々嵌合する凹部２７，２８が形成されている。該凹部２７，２８の前後方向長は案内ピン１２，１３の前後方向長と略同長に形成され、左右方向長は案内ピン１２，１３の左右方向長よりも長く形成されている。更に、抜き治具２５の表面には、係止部２６の左右幅より短い幅の操作部２９が一体に突設されている。
【００２５】
前記抜き治具２５の表側にはカバー３０が配置されている。
【００２６】
該表カバー３０の裏側には裏面が開口する案内凹部３１が形成されており、該案内凹部３１内に前記抜き治具２５が前後方向に移動可能に嵌合される。更に、該案内凹部３１の前端は前記抜き治具２５の前端係止面２６ａが当たる前端規制面３１ａとなっており、後端は抜き治具２５の後端係止面２６ｂが当たる後端規制面３１ｂになっている。更に、カバー３０の中央部には前記操作部２９が前後方向に移動可能に嵌合する窓３２が形成されている。
【００２７】
前記案内ピン１２，１３、案内長孔１６，１７、抜き治具２５、操作部２９などにより解除手段３３を形成している。
【００２８】
前記各部材には共通する位置に取付用穴３４が形成され、該各取付用穴３４にビス３５などの連結部材を挿通して各部材を一体的に連結し、ナット１を構成している。
【００２９】
次に前記実施例のナット１を使用して、例えばパネル相互を連結する操作について説明する。
【００３０】
前記ナット１を図１及び図５に示すように、一方のパネル５０の連結側端面５０ａにナット１のボルト挿通孔４０の挿入側端が位置するように一方のパネル５０に適宜手段で固定して備え、また、ボルト５を、その先部が他方のパネル６０の連結側端面６０ａより突出させて適宜手段により他方のパネル６０に固定して備える。
【００３１】
そして、両係止部材１０，１１が前方に位置して、そのねじ溝１０ａ，１１ａの相互φ間がボルト５のねじ溝５ａの直径よりも短い間隔にある状態において、両パネル５０，６０を相互に接近してボルト５をナット１のボルト挿入孔４０へ挿入すると、先ず、図７又は図８又は図９に示す位置にある係止部材１０，１１の先端部にボルト５の先端部が当って係止部材１０，１１がコイルスプリング２０，２１の付勢力に抗して奥部へ押し移動される。この係止部材１０，１１の移動は案内長穴１６，１７とピン１２，１３によってテーパ面８，９に沿って後方へ移動し、両係止部材１０，１１の対向間距離が漸次長く（広く）なる。
【００３２】
そして、ボルト５の挿入によって、両係止部材１０，１１におけるねじ溝１０ａ，１１ａの山部の対向間隔がボルト５の山部の直径よりも広くなると、両係止部材１０，１１はコイルスプリング２０，２１の付勢力によって前方へ押し移動される。これを繰り返してボルト５が挿入され、両パネル５０，６０の連結側端面５０ａ，６０ａが当接すると、図５に示すように、両係止部材１０，１１のねじ溝１０ａ，１１ａがボルト５のねじ溝５ａに噛合した状態で係止部材１０，１１が止まる。このとき、両係止部材１０，１１のねじ溝１０ａ，１１ａ相互が１／２ピッチずれて両ねじ溝１０ａ，１１ａがボルト５のねじ溝５ａに噛合し、かつテーパ面１０ｂ，１１ｂがテーパ面８，９に接触している。
【００３３】
この状態で、両パネル５０，６０に分離しようとする力が作用すると、すなわち、ボルト５にナット１より抜ける方向への力が作用すると、ボルト５のねじ溝５ａに噛合している係止部材１０，１１に前方への力が作用するが、係止部材１０，１１のテーパ面１０ｂ，１１ｂとケース板６，７のテーパ面８，９の係合により、係止部材１０，１１のねじ溝１０ａ，１１ａがボルト５のねじ溝５ａに喰い込み、ボルト５の抜け外れが阻止される。このとき、前記のように両ねじ溝１０ａ，１１ａを１／２ピッチずらしたことにより、ねじ溝１０ａ，１１ａのねじ溝５ａへの喰い込み状態で、テーパ面１０ｂ，１１ｂとテーパ面８，９とが当接状態にあるため、ボルト５の抜け外れが強固に阻止され、両パネル５０，６０は相互に強固に連結される。
【００３４】
したがって、両パネル５０，６０を連結する際には、両パネル５０，６０を相互に近接する作業のみでよく、従来のようにボルトに対してナットを回転して連結するものに比べて連結作業が容易である。
【００３５】
次に、前記の連結状態から両パネル５０，６０を分離する場合には、カバー３０に露出した操作部２９の先端を手操作で後方（図１の矢印Ａ方向）へ移動させて両係止部材１０，１１を後方へ移動させる。これにより、両係止部材１０，１１が案内長孔１６，１７によって両係止部材１０と１１間の間隔φが広がり、その間隔φが、ボルト５の山部の直径より大きくなるとボルト５を抜き外すことができ、このボルト５を抜き外すことにより両パネル５０，６０を分離することができる。
【００３６】
この分離作業においてもナット１を従来のように回転する必要がなく、分離作業も容易に行える。
【００３７】
なお、前記実施例においては、螺旋状のねじ溝５ａを有するボルト５を使用した例であるが、このボルト５を、図１０に示すように、外周に螺旋溝ではなく、リング状の溝５ｃを形成した連結棒５Ａとし、前記係止部材１０，１１のねじ溝１０ａ，１１ａを前記リング状の溝５ｃに嵌合する非傾斜溝１０ｃ，１１ｃとしてもよい。
【００３８】
更に、前記実施例においては、ねじ溝５ａを有するボルト５やリング溝５ｃを有する連結棒５Ａを使用したが、図１１に示すような、表面に軸方向において凹凸面を有しない丸棒状の連結棒５Ｂや図１２に示すような角棒状の連結棒５Ｃを使用してもよい。このような非凹凸面の連結棒５Ｂ，５Ｃであっても両係止部材１０，１１の内側面を前記のように先尖状の凹凸面に形成することにより、この凹凸面が前記連結棒５Ｂ，５Ｃに喰い込み、前記と同様の連結が可能である。なお、図１２に示すような角棒状の連結棒５Ｃを使用する場合には、両係止部材１０，１１の内側面を図６（ｃ）又は図１０（ｃ）において円弧とすることなく、上下方向の直線からなる凹凸面にする。
【００３９】
更に、前記両係止部材１０，１１の内側面を、前記のようにねじ溝からなる凹凸面に形成することなく図１３に示すように、前記ボルト挿通孔の軸心と平行する平坦面１０ｄ，１１ｄに形成してもよい。この場合には、前記のようなボルト５や連結棒５Ａを使用することにより、そのねじ溝５ａの山やリング溝５ｃの山が両係止部材１０，１１の平坦面１０ｄ，１１ｄに喰い込み、前記実施例と同様に連結することができる。
【００４０】
また、前記実施例においては、ナット１のボルト挿入孔４０を、ナット１の前後方向に貫通させたが、このボルト挿入孔４０の後部は閉塞してもよい。
【００４１】
また、本発明のナット１は、前記のようなパネルの連結のものに限るものではなく、その他の部品の連結にも使用できることは勿論である。
【００４２】
【発明の効果】
以上のようであるから、本発明のナットは、ボルトや外周に凹凸部を有する丸棒や角棒などの連結棒に対して回転することなく連結できるため、従来のような回転して連結するナットに比べて連結作業が容易である。
【００４３】
更に、本発明のナットをボルトに螺合する場合には、そのボルトのねじの一部が破損していても、ナットを挿通できる。
【００４４】
更に、本発明のナットは、２個の係止部材を１つの平面上において対向して配置したので、前記従来のように溝付セグメントを全周に配置するものに比べて、ナットを板状に薄く形成することができる。そのため、狭い場所での連結に有効である。
【００４５】
更に、部品のほとんどを平板で形成できるため、プレスや鍛造で部品を製造でき、製造コストの低減を図ることができる。
【００４６】
また、請求項５の発明によれば、連結したナットを回転することなく容易に外すことができる。
【図面の簡単な説明】
【図１】本発明の実施例を示す斜視図。
【図２】本発明のナットの前面図。
【図３】図１におけるＢ−Ｂ線断面図。
【図４】本発明のナットの部品を分解した斜視図。
【図５】本発明のナットにおいて表カバーを外した状態の平面図。
【図６】本発明のナットをボルトと連結する実施例におけるボルトと係止部材を示すもので、（ａ）はボルトの側面図、（ｂ）は係止部材の内側面図、（ｃ）は（ｂ）におけるＣ−Ｃ線断面図。
【図７】本発明における係止部材の配置状態を示す平面図。
【図８】本発明における係止部材の他の例を示す平面図。
【図９】本発明における係止部材の更に他の例を示す平面図。
【図１０】本発明のナットを非螺旋状のリング溝を形成した連結棒と連結する実施例における連結棒と係止部材を示すもので、（ａ）は連結棒の側面図、（ｂ）は係止部材の内側面図、（ｃ）は（ｂ）におけるＤ−Ｄ線断面図。
【図１１】本発明のナットと連結する連結棒の他の例を示す斜視図。
【図１２】本発明のナットと連結する連結棒の更に他の例を示す斜視図。
【図１３】本発明の係止部材の他の例を示す斜視図。
【符号の説明】
１ナット
２裏カバー
３，４裏スペーサ
５，５Ａ〜５Ｃ連結棒
６，７ケース板
８，９テーパ面
１０，１１係止部材
１０ａ，１１ａ，１０ｃ凹凸面
１０ｄ，１１ｄ平坦面
１２，１３案内ピン
１４，１５表スペーサ
１６，１７案内長孔
２０，２１付勢手段
２２表カバー
３３解除手段[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a nut.
[0002]
[Prior art]
Conventionally, a nut that can be completely tightened by inserting it into a bolt without rotating to a tightening position and slightly rotating at the tightening position is known (for example, Japanese Utility Model Publication No. 55-48171).
[0003]
This nut is provided with a plurality of grooved segments in the nut so as to be movable in the axial direction over the entire circumference of the nut, and by inserting the bolt into the nut without rotating, the plurality of grooved segments are pushed and connected. It can be done.
[0004]
[Problems to be solved by the invention]
In the conventional nut in which the grooved segments are arranged over the entire circumference in the circumferential direction as described above, since the plurality of segments are arranged over the entire circumference of the nut axis, the outer diameter of the nut is increased. Therefore, the space occupied by the nut becomes large, and there is a problem that it cannot be used in a narrow place.
[0005]
Accordingly, an object of the present invention is to provide a nut that can be inserted into a connecting rod such as a bolt without rotation, can be separated when necessary, and can be used even when use in a narrow place is required. It is what.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a first invention according to claim 1 is characterized in that a pair of flat case plates are arranged in parallel with a predetermined gap between them in the same plane, When a connecting rod insertion hole is formed by a gap, the connecting rod insertion direction in the connecting rod insertion hole is the front-rear direction, the connecting rod insertion side is the front side, and the opposite side is the rear side, the inside of each of the case plates Are formed with taper surfaces that open rearward outwards, and on both the taper surface portions, locking members are arranged so as to be movable in the front-rear direction along the taper surfaces, and further, the inner side surfaces of the both locking members. Is formed in a concavo-convex surface in a direction parallel to the axial center of the connecting rod insertion hole, and further, the locking member is urged forward by urging means, and the front and back surfaces of both case plates are made of plate material It is characterized by being coated.
[0007]
According to a second aspect of the present invention, a pair of flat case plates are arranged in parallel with a predetermined gap between them in the same plane, and a connecting rod insertion hole is formed by the gap. When the connecting rod insertion direction in the connecting rod insertion hole is the front-rear direction, the connecting rod insertion side is the front side, and the opposite side is the rear side, the inside of each of the case plates has a taper that opens rearward outward. A locking member is disposed on each of the tapered surface portions so as to be movable in the front-rear direction along the tapered surface, and the inner side surfaces of both the locking members are arranged on the shafts of the connecting rod insertion holes. It is formed on a flat surface parallel to the center, and further, the locking member is urged forward by urging means, and the front and back surfaces of both case plates are covered with a plate material.
[0008]
According to a third aspect of the present invention, a pair of flat back spacers are arranged on a surface of a flat back cover in parallel with a predetermined gap between them, and a connecting rod is inserted through the gap. hole was formed, and the front-rear direction connecting rod insertion direction of the connecting rod insertion hole, the front and the connecting rod insertion side, when the rear side opposite the two back spacers on each plate-like case plate The connecting rod insertion hole is formed in the front-rear direction with a predetermined gap between the pair of case plates, and inside each of the case plates, a tapered surface that opens rearward is formed, A locking member is disposed on each of the tapered surface portions so as to be movable in the front-rear direction along the tapered surface, and the inner side surfaces of both the locking members are arranged in a direction parallel to the axis of the connecting rod insertion hole. Formed on an uneven surface, and further biasing the locking member forward by a biasing means. Furthermore, top plate-like front spacers are respectively arranged on the surfaces of the both locking members, and the front spacers are formed in the front spacers along tapered surfaces formed in the case plate. A guide pin protrudes from the surface of the locking member, the guide pin is slidably fitted into the guide long hole, and the surfaces of both front spacers are covered with a flat front cover. It is what.
[0009]
According to a fourth aspect of the present invention, a pair of plate-like back spacers are arranged on the surface of the plate-like back cover in parallel with a predetermined gap therebetween, and a connecting rod is inserted through the gap. hole was formed, and the front-rear direction connecting rod insertion direction of the connecting rod insertion hole, the front and the connecting rod insertion side, when the rear side opposite the two back spacers on each plate-like case plate The connecting rod insertion hole is formed in the front-rear direction with a predetermined gap between the pair of case plates, and inside each of the case plates, a tapered surface that opens rearward is formed, A locking member is disposed on each of the taper surfaces so as to be movable in the front-rear direction along the taper surface, and the inner surface of each of the locking members is a flat surface parallel to the axis of the connecting rod insertion hole. Further, the locking member is urged forward by the urging means, and the A top plate-like front spacer is arranged on the surface of the locking member, and a guide long hole is formed in each front spacer along the tapered surface formed in the case plate. A guide pin is protruded on the surface, the guide pin is slidably fitted into the guide slot, and the surfaces of both front spacers are covered with a flat front cover. is there.
[0010]
According to a fifth aspect of the present invention, in any one of the first to fourth aspects, release means is provided that can move the both locking members rearward from the outside of the nut.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described based on the examples shown in the drawings.
[0012]
FIG. 1 to FIG. 9 show an example of a nut that uses a bolt in which a spiral groove is formed as a connecting rod and is connected to the bolt.
[0013]
As shown in FIG. 1, the nut 1 is formed in a plate shape by laminating flat plate materials, and the back cover 2 that is a component of the nut 1 is formed of a metal flat plate.
[0014]
On the surface of the back cover 2, a pair of back spacers 3 and 4 are arranged in parallel on the same plane with a predetermined gap D1 on the left and right with a central portion X1-X2 through which the bolt 5 is inserted, A gap D1 between the back spacers 3 and 4 forms a part of a bolt insertion hole penetrating in the front-rear direction (the X1-X2 direction is the front-rear direction). The back spacers 3 and 4 are formed of a metal flat plate.
[0015]
On the surface side of the pair of back spacers 3, 4, a pair of case plates 6, 7 are arranged in parallel with a predetermined gap D 2 across a central part X 1 -X 2 through which the bolt 5 is inserted, A gap D2 between the pair of case plates 6 and 7 forms a part of a bolt insertion hole penetrating in the front-rear direction. Tapered surfaces 8 and 9 are formed on the inner side surfaces of the pair of case plates 6 and 7 so that the rear side (X2 side) extends outward. The pair of case plates 6 and 7 are each formed of a metal flat plate.
[0016]
On the inner side of each of the pair of case plates 6 and 7, wedge-shaped locking members 10 and 11 are arranged, respectively. Threaded grooves 10a and 11a, which are tooth-like uneven surfaces made of peaks and valleys, are engraved on the inner side surfaces of the locking members 10 and 11 along the insertion direction of the bolt 5 (the X1-X2 direction). ing. As shown in FIG. 6 (b), the screw grooves 10a and 11a are formed to be equivalent to the screw pitch of the screw groove 5a of the bolt 5, and are meshed along the screw groove of the bolt 5. As shown in (c), it is formed by a part of a circular arc substantially equivalent to the thread groove 5a of the bolt 5. The outer surfaces of the locking members 10 and 11 are formed on tapered surfaces 10b and 11b along the tapered surfaces 8 and 9, respectively. Further, each of the locking members 10 and 11 is made of metal, and guide pins 12 and 13 project upward from the surface thereof.
[0017]
Further, the screw grooves 10a and 11a of the both locking members 10 and 11 are formed on the locking members 10 and 11 when the bolt 5 is inserted and meshed with the screw grooves 10a and 11a as shown in FIG. In a state where the tapered surfaces 10b and 11b are in contact with the tapered surfaces 8 and 9, both screw grooves 10a and 11a are set so as to be displaced in the bolt insertion direction by 1/2 pitch as shown by P in FIG. Yes.
[0018]
In this way, the method of shifting the pitch between the screw grooves 10a and 11a by ½, as shown in FIG. 7, is that the locking members 10 and 11 having the screw grooves 10a and 11a formed in the same state are moved in the bolt insertion direction. Further, as shown in FIG. 8, both the locking members 10, 11 formed by shifting the thread grooves 10a, 11a by 1/2 pitch in the bolt insertion direction as shown in FIG. Further, as shown in FIG. 9, both locking members 10 and 11 having thread grooves 10a and 11a formed in the same state are used, and the tapered surfaces 8 and 9 are mutually connected. It may be shifted by a predetermined amount P in the bolt insertion direction, that is, by 1/2 pitch of the thread groove.
[0019]
On the surface of the pair of case plates 6 and 7, a pair of front spacers 14 and 15 made of a metal flat plate are arranged in parallel with a predetermined gap D3 like the pair of back spacers 3 and 4. Yes. The pair of front spacers 14 and 15 are formed with guide long holes 16 and 17 penetrating in the front and back directions in which the guide pins 12 and 13 of the locking members 10 and 11 are slidably fitted. The guide long holes 16 and 17 are formed so as to be inclined along the tapered surfaces 8 and 9, that is, so that the rear side extends outward. Stopper surfaces 16a and 17a are formed on the front side of the guide long holes 16 and 17, respectively.
[0020]
A bolt insertion hole 40 penetrating in the front-rear direction is formed by the gaps D1, D2, D3.
[0021]
The case plates 6 and 7 are provided with storage chambers 18 and 19 at the rear portions of the tapered surfaces 8 and 9, and biasing members 20 and 21 are stored in the storage chambers 18 and 19, respectively. The spacers 3 and 4 and the front spacers 14 and 15 prevent the urging members 20 and 21 from coming off. The urging members 20 and 21 always urge the locking members 10 and 11 forward, that is, so that the facing distance between the both locking members 10 and 11 is reduced. As the biasing member (biasing means), a coil spring is used in the illustrated example, but a member made of an elastic material such as rubber may be used.
[0022]
On the surface side of the pair of front spacers 14, 15, one front cover 22 is disposed between them. The front cover 22 is formed with a pair of guide long holes 23 and 24 that are inclined at the same position and in the same direction as the guide long holes 16 and 17. The pair of guide long holes 23 and 24 penetrates the front cover 22 in the front and back direction. The front cover 22 is formed of a metal flat plate.
[0023]
On the surface side of the front cover 22, a punching jig 25 is disposed so as to be slidable in the front-rear direction.
[0024]
The extraction jig 25 is formed of a metal flat plate having a wide locking portion 26 at the rear, and a front end locking surface 26 a and a rear end locking surface 26 b are formed on the locking portion 26. Further, on the back side of the extraction jig 25, concave portions 27 and 28 into which the guide pins 12 and 13 are respectively fitted are formed. The front and rear lengths of the recesses 27 and 28 are formed to be substantially the same as the front and rear lengths of the guide pins 12 and 13, and the left and right lengths are longer than the left and right lengths of the guide pins 12 and 13. Furthermore, an operation portion 29 having a width shorter than the left and right width of the locking portion 26 is integrally projected on the surface of the extraction jig 25.
[0025]
A cover 30 is disposed on the front side of the extraction jig 25.
[0026]
A guide recess 31 having an open rear surface is formed on the back side of the front cover 30, and the extraction jig 25 is fitted in the guide recess 31 so as to be movable in the front-rear direction. Further, the front end of the guide recess 31 is a front end restricting surface 31a against which the front end engaging surface 26a of the extraction jig 25 abuts, and the rear end is a rear end restriction against which the rear end engaging surface 26b abuts against the extraction jig 25. It is the surface 31b. Further, a window 32 is formed in the center of the cover 30 so that the operation portion 29 can be moved in the front-rear direction.
[0027]
A release means 33 is formed by the guide pins 12 and 13, the guide long holes 16 and 17, the extraction jig 25, the operation portion 29, and the like.
[0028]
A mounting hole 34 is formed at a common position in each member, and a connecting member such as a screw 35 is inserted into each mounting hole 34 to integrally connect the members to constitute the nut 1. .
[0029]
Next, for example, an operation for connecting the panels to each other using the nut 1 of the above embodiment will be described.
[0030]
As shown in FIGS. 1 and 5, the nut 1 is fixed to one panel 50 by an appropriate means so that the insertion side end of the bolt insertion hole 40 of the nut 1 is positioned on the connection side end surface 50a of the one panel 50. In addition, the bolt 5 is provided with a tip portion protruding from the connection side end surface 60a of the other panel 60 and fixed to the other panel 60 by appropriate means.
[0031]
Then, in a state where both the locking members 10 and 11 are located in the front and the mutual φ between the screw grooves 10a and 11a is shorter than the diameter of the screw groove 5a of the bolt 5, the panels 50 and 60 are When the bolt 5 is inserted into the bolt insertion hole 40 of the nut 1 by approaching each other, first, the distal end portion of the bolt 5 is placed on the distal end portion of the locking members 10 and 11 at the position shown in FIG. Then, the locking members 10 and 11 are pushed and moved to the back against the urging force of the coil springs 20 and 21. The movement of the locking members 10 and 11 is moved rearward along the tapered surfaces 8 and 9 by the guide elongated holes 16 and 17 and the pins 12 and 13, and the distance between the two locking members 10 and 11 is gradually increased ( Widely).
[0032]
When the opposing distance between the crests of the screw grooves 10a and 11a in both the locking members 10 and 11 becomes wider than the diameter of the crest of the bolt 5 by the insertion of the bolt 5, both the locking members 10 and 11 are coil springs. It is pushed and moved forward by the urging force of 20,21. When the bolt 5 is inserted by repeating this and the connection side end faces 50a and 60a of both the panels 50 and 60 are brought into contact with each other, the screw grooves 10a and 11a of the both locking members 10 and 11 become bolt 5 as shown in FIG. The locking members 10 and 11 stop in a state of being engaged with the screw groove 5a. At this time, the screw grooves 10a, 11a of both the locking members 10, 11 are shifted from each other by ½ pitch, the both screw grooves 10a, 11a mesh with the screw groove 5a of the bolt 5, and the tapered surfaces 10b, 11b are tapered surfaces. 8 and 9 are in contact.
[0033]
In this state, when a force for separating the two panels 50 and 60 is applied, that is, when a force is applied to the bolt 5 in the direction of being removed from the nut 1, the locking member engaged with the screw groove 5 a of the bolt 5. Although a forward force acts on 10 and 11, the screws of the locking members 10 and 11 are engaged by the engagement of the tapered surfaces 10b and 11b of the locking members 10 and 11 and the tapered surfaces 8 and 9 of the case plates 6 and 7. The grooves 10a and 11a bite into the thread groove 5a of the bolt 5, and the bolt 5 is prevented from coming off. At this time, by shifting both screw grooves 10a and 11a by 1/2 pitch as described above, the taper surfaces 10b and 11b and the taper surfaces 8 and 9 are in a state where the screw grooves 10a and 11a are bitten into the screw groove 5a. Are in contact with each other, so that the bolts 5 are prevented from coming off and the panels 50 and 60 are firmly connected to each other.
[0034]
Therefore, when connecting both panels 50 and 60, only the operation | work which adjoins both panels 50 and 60 to each other is sufficient, and it is a connection operation compared with what rotates and connects a nut with respect to a volt | bolt conventionally. Is easy.
[0035]
Next, when both panels 50 and 60 are separated from the connected state, the front end of the operation portion 29 exposed to the cover 30 is moved manually (in the direction of arrow A in FIG. 1) to the both ends. The members 10 and 11 are moved backward. As a result, the gaps φ between the locking members 10 and 11 are widened by the guide elongated holes 16 and 17 in both the locking members 10 and 11, and when the distance φ becomes larger than the diameter of the peak portion of the bolt 5, Both panels 50 and 60 can be separated by removing the bolt 5.
[0036]
Also in this separation operation, it is not necessary to rotate the nut 1 as in the prior art, and the separation operation can be performed easily.
[0037]
In addition, in the said Example, although it is the example which uses the volt | bolt 5 which has the helical thread groove 5a, as shown in FIG. 10, this volt | bolt 5 is not a spiral groove on the outer periphery, but the ring-shaped groove | channel 5c. The connecting rod 5A may be formed, and the thread grooves 10a and 11a of the locking members 10 and 11 may be non-inclined grooves 10c and 11c fitted into the ring-shaped groove 5c.
[0038]
Furthermore, in the said Example, although the connecting rod 5A which has the volt | bolt 5 which has the screw groove 5a, and the ring groove 5c was used, as shown in FIG. 11, the connection of the round bar shape which does not have an uneven surface in the axial direction as shown in FIG. A rod 5B or a connecting rod 5C having a square bar shape as shown in FIG. 12 may be used. Even in the case of such non-concave surface connecting rods 5B and 5C, the concave and convex surfaces can be formed into the connecting rods by forming the inner surfaces of both locking members 10 and 11 as pointed uneven surfaces as described above. The same connection as described above is possible by biting into 5B and 5C. In addition, when using the square bar-shaped connecting rod 5C as shown in FIG. 12, without making the inner surface of both the locking members 10 and 11 into an arc in FIG. 6 (c) or FIG. 10 (c), The uneven surface is a straight line in the vertical direction.
[0039]
Further, as shown in FIG. 13, the flat surface 10d parallel to the axis of the bolt insertion hole is formed without forming the inner side surfaces of the locking members 10 and 11 on the concave / convex surface formed of a screw groove as described above. , 11d. In this case, by using the bolt 5 or the connecting rod 5A as described above, the crest of the thread groove 5a or the crest of the ring groove 5c bites into the flat surfaces 10d and 11d of the both locking members 10 and 11. The connection can be made in the same manner as in the previous embodiment.
[0040]
Moreover, in the said Example, although the bolt insertion hole 40 of the nut 1 was penetrated in the front-back direction of the nut 1, the rear part of this bolt insertion hole 40 may be obstruct | occluded.
[0041]
Further, the nut 1 of the present invention is not limited to the panel connection as described above, but can be used for connection of other parts.
[0042]
【The invention's effect】
As described above, since the nut of the present invention can be connected to a bolt or a connecting rod such as a round bar or a square bar having an uneven portion on the outer periphery without rotating, it is rotated and connected as before. Connection work is easier than nuts.
[0043]
Furthermore, when the nut of the present invention is screwed into a bolt, the nut can be inserted even if a part of the screw of the bolt is damaged.
[0044]
Furthermore, since the nut of the present invention has two locking members arranged opposite to each other on one plane, the nut has a plate-like shape as compared with the conventional arrangement in which the grooved segments are arranged all around. Can be formed thinly. Therefore, it is effective for connection in a narrow place.
[0045]
Furthermore, since most of the components can be formed of flat plates, the components can be manufactured by pressing or forging, and the manufacturing cost can be reduced.
[0046]
According to the invention of claim 5, the connected nut can be easily removed without rotating.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of the present invention.
FIG. 2 is a front view of the nut of the present invention.
3 is a cross-sectional view taken along line BB in FIG.
FIG. 4 is an exploded perspective view of parts of the nut of the present invention.
FIG. 5 is a plan view of the nut of the present invention with the front cover removed.
6A and 6B show a bolt and a locking member in an embodiment in which the nut of the present invention is connected to the bolt, wherein FIG. 6A is a side view of the bolt, FIG. 6B is an inner side view of the locking member, and FIG. FIG. 6 is a cross-sectional view taken along line CC in (b).
FIG. 7 is a plan view showing an arrangement state of locking members in the present invention.
FIG. 8 is a plan view showing another example of a locking member according to the present invention.
FIG. 9 is a plan view showing still another example of a locking member according to the present invention.
10A and 10B show a connecting rod and a locking member in an embodiment in which the nut of the present invention is connected to a connecting rod formed with a non-spiral ring groove. FIG. 10A is a side view of the connecting rod, and FIG. Is an inner side view of the locking member, and (c) is a sectional view taken along line DD in (b).
FIG. 11 is a perspective view showing another example of a connecting rod connected to the nut of the present invention.
FIG. 12 is a perspective view showing still another example of a connecting rod that is connected to the nut of the present invention.
FIG. 13 is a perspective view showing another example of the locking member of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Nut 2 Back cover 3, 4 Back spacer 5, 5A-5C Connecting rod 6, 7 Case board 8, 9 Tapered surface 10, 11 Locking member 10a, 11a, 10c Uneven surface 10d, 11d Flat surface 12, 13 Guide pin 14, 15 Table spacers 16, 17 Guide slots 20, 21 Biasing means 22 Table cover 33 Release means

Claims

A pair of plate-like case plate in the same plane, and arranged in parallel with a predetermined gap between them, the connecting rod insertion hole formed by the gap, connecting rod insertion direction of the connecting rod insertion hole Is the front side, and the opposite side is the rear side, a taper surface is formed on the inner side of each of the case plates so that the rear side is opened outwardly. The locking members are arranged so as to be movable in the front-rear direction along the taper surface, and the inner side surfaces of both the locking members are formed as irregular surfaces in a direction parallel to the axis of the connecting rod insertion hole. Further, the nut is characterized in that the locking member is urged forward by the urging means, and the front and back surfaces of both case plates are covered with a plate material.

A pair of plate-like case plate in the same plane, and arranged in parallel with a predetermined gap between them, the connecting rod insertion hole formed by the gap, connecting rod insertion direction of the connecting rod insertion hole Is the front side, and the opposite side is the rear side, a taper surface is formed on the inner side of each of the case plates so that the rear side is opened outwardly. Each of the locking members is disposed so as to be movable in the front-rear direction along the tapered surface, and the inner side surfaces of both the locking members are formed on a flat surface parallel to the axis of the connecting rod insertion hole, and The nut is characterized in that the locking member is urged forward by an urging means, and the front and back surfaces of both case plates are covered with a plate material.

On a flat surface of the back cover, a flat back spacer pair, with a predetermined gap between them to form a connecting rod insertion hole by the gap arranged in parallel, in the connecting rod insertion hole When the connecting rod insertion direction is the front-rear direction, the connecting rod insertion side is the front side, and the opposite side is the rear side, a flat case plate is disposed on each of the back spacers, and a predetermined amount of space is provided between the pair of case plates. A connecting rod insertion hole is formed in the front-rear direction with a gap, a tapered surface is formed on the inner side of each of the case plates, and a locking member is tapered on each of the tapered surface portions. The inner surface of each of the locking members is formed in a concavo-convex surface in a direction parallel to the axis of the connecting rod insertion hole, and the locking member is further moved. The members are urged forward by the urging means, and the surfaces of the both locking members are further urged. Each of the front spacers is formed with a guide long hole along a tapered surface formed in the case plate, and guide pins are projected on the surfaces of the locking members. A nut characterized in that the guide pin is slidably fitted into the guide slot and the surfaces of both front spacers are covered with a flat front cover.

On a flat surface of the back cover, a flat back spacer pair, with a predetermined gap between them to form a connecting rod insertion hole by the gap arranged in parallel, in the connecting rod insertion hole When the connecting rod insertion direction is the front-rear direction, the connecting rod insertion side is the front side, and the opposite side is the rear side, a flat case plate is disposed on each of the back spacers, and a predetermined amount of space is provided between the pair of case plates. A connecting rod insertion hole is formed in the front-rear direction with a gap, a tapered surface is formed on the inner side of each of the case plates, and a locking member is tapered on each of the tapered surface portions. The inner surface of each of the locking members is formed into a flat surface parallel to the axis of the connecting rod insertion hole, and the locking member is It is urged forward by the urging means, and the surfaces of the both locking members are A guide long hole is formed along the tapered surface formed on the case plate, and guide pins are provided on the surfaces of the locking members to project the guide spacers. A nut, wherein a pin is slidably fitted into the guide long hole, and the surfaces of both front spacers are covered with a flat front cover.

The nut according to any one of claims 1 to 4, further comprising release means for moving the both locking members rearward from the outside of the nut.