JP3699376B2

JP3699376B2 - Fastening bracket

Info

Publication number: JP3699376B2
Application number: JP2001255174A
Authority: JP
Inventors: 豊徳永
Original assignee: 株式会社徳永
Priority date: 2001-08-24
Filing date: 2001-08-24
Publication date: 2005-09-28
Anticipated expiration: 2021-08-24
Also published as: JP2003064785A

Description

【０００１】
【発明の属する技術分野】
本発明は、第１の接合部材と、この第１の接合部材に係合する接合金具を互いに締結するための締付金具に関する。
【０００２】
【従来の技術】
２つの部材を固定する技術として、従来から縦方向に延在する第１の部材と横方向に延在する第２の部材とを互いに緊締するために、例えば、前記第１の部材を基礎ボルトに係合する保持金具に締結する構造のものが知られている。この場合、前記第１の部材にボルトが挿通され、該ボルトの雄ねじ側を該保持金具に挿入しナットを螺合することにより、該第１の部材と該保持金具を締結する構造が使用されている。
【０００３】
この構造は、ボルトの頭部が比較的肉薄に形成されているために、締結力を大きくすると第１の部材に係合する該ボルトの頭部が該第１の部材に食い込んで締結力が一定にならず、結果的には第１の部材と保持金具を一定の状態で締結するのが難しいという不具合がある。さらに、ボルトが第１の部材に食い込むので該第１の部材が強度的に弱くなるという不具合がある。
【０００４】
一方、前記ボルトの頭部を肉薄にすると前記第１の部材の平坦面との間に大きな段差が生じてしまう難点がある。
【０００５】
【発明が解決しようとする課題】
本発明は、前記の不具合を克服するためになされたもので、強度性に優れ、且つさほど高度な技術も必要とすることがなく、しかも、締結部材を極めて堅牢に締結することが可能な締付金具を提供することを目的とする。
【０００６】
【課題を解決するための手段】
前記の目的を達成するために、本発明は、第１の接合部材と第２の接合部材とを締結する締付金具であって、
少なくとも一端側に第１の接合部材に挿着されるテーパ部が形成され、他端側にネジ部を有する第１の保持金具と、
前記第１の保持金具に螺合する第２の保持金具と、
を備え、
前記第１の保持金具のテーパ部に、該第１の保持金具の軸線に沿って等間隔に離間したガイド機能を有する複数の突起が形成され、前記第１の保持金具のテーパ部を前記第１の接合部材に挿着し、該第１の保持金具および前記第２の保持金具により該第１の接合部材と前記第２の接合部材とが締結されることを特徴とする。
【０００７】
本発明によれば、第１の保持金具の頭部が第１の接合部材に食い込むのを阻止して、第１および第２の保持金具による締結力が常に一定に保持される。
【０００８】
この場合、前記第１の保持金具は、前記第１の接合部材と該第１の接合部材に固着される接合金具に挿通され、該第１の保持金具および前記第２の保持金具により該第１の接合部材と該接合金具とが締結されると、第１の保持金具の頭部が第１の接合部材に食い込むのを防止して、第１および第２の保持金具による締結力が一定になる。
【０００９】
また、本発明は、第１の接合部材と第２の接合部材とを締結する締付金具であって、
少なくとも一端側にテーパ部を形成して第１の接合部材と該第１の接合部材に接合する第２の接合部材に挿通され、他端側にネジ部を有する第１の保持金具と、
前記第１の保持金具に螺合する第２の保持金具と、
前記第２の接合部材に挿着されるテーパ部を有し且つ前記第１の保持金具に挿通される第３の保持金具と、
を備え、
前記第１の保持金具のテーパ部に、該第１の保持金具の軸線に沿って等間隔に離間したガイド機能を有する複数の突起が形成され、前記第１の保持金具のテーパ部を前記第１の接合部材に挿着し前記第３の保持金具を前記第２の接合部材に挿着し、前記第２の保持金具を該第１の保持金具に螺合することにより、該第１の接合部材と該第２の接合部材とが締結されることを特徴とする。
【００１０】
本発明によれば、隣接する第１および第２の接合部材を密着させて締結することにより、該第１および第２の接合部材の強度をより一層向上させることができる。
【００１１】
この場合、前記第３の保持金具は、テーパ部に着座部が設けられると、第２の接合部材に確実に密着することができるのでよい。
【００１２】
この場合、前記第１および第３の保持金具は、テーパ部のテーパ面に沿って等間隔に離間し複数の突起が形成されると、該突起をガイドにして該第１および第３の保持金具のテーパ部がそれぞれ第１および第２の接合部材に容易に挿着される。
【００１３】
さらに、第１および第２の接合部材に対して第１および第３の保持金具の回り止め機能を有するので好適である。
【００１４】
また、前記突起は、円周方向の複数箇所に均等に形成されると、前記第１および第３の保持金具のそれぞれが前記第１および第２の接合部材の軸線に略直交して該第１または２の接合部材に挿着されて、第１および第２の接合部材の締結力を一定にすることができるのでよい。
【００１５】
【発明の実施の形態】
本発明に係る締付金具につき好適な実施の形態を挙げ、添付の図面を参照しながら以下詳細に説明する。
【００１６】
図１は、本発明の第１の実施の形態に係る締付金具１０の分解斜視図である。この締付金具１０は、第１の部材１２を含む。前記第１の部材（第１の保持金具）１２は、一側部に円錐形状のテーパ部１６を有するボルト１４であって、該テーパ部１６の大径側に略円形状の肉薄な着座部１８が設けられ、他側部に雄ねじ２０が形成される。前記テーパ部１６は、軸心に指向して傾斜するテーパ面が形成され、該テーパ面に沿って等間隔に離間して複数の突起２８が形成され、ボルト１４を後述する第２の接合部材３４に装着された際の回り止めの機能を営む。この場合、前記突起２８の先端を尖鋭に形成すると、テーパ部１６が容易に第２の接合部材３４に挿着される。
【００１７】
前記雄ねじ２０の端部には、該雄ねじ２０よりも小径の段差部２２が形成される。前記段差部２２は、ナット２４を雄ねじ２０に螺合する際のガイド機能を有する。この場合、前記段差部２２は、円筒形状に限らず円錐形状にしてもよい。
【００１８】
なお、参照符号２６は、ボルト１４に挿入されるワッシャを示す。
【００１９】
次に、図２に示されるように、上記した締付金具１０を用いて、第１の接合部材３２と第２の接合部材３４とを互いに締結する手順について説明する。
【００２０】
まず、図２に示されるように、第１および第２の接合部材３２、３４を合わせる。この場合、第１および第２の接合部材３２、３４に予め軸線に略直交するように孔部７６、７８を形成しておき、これらの孔部７６、７８を合わせてボルト１４を挿通する。
【００２１】
そして、着座部１８の外側面をハンマー等で叩くと、テーパ部１６が突起２８をガイドにして第１の接合部材３２の孔部７６に沿って挿着される。これにより、ボルト１４が第１および第２の接合部材３２、３４に挿通される。この場合、ボルト１４の着座部１８の外側面が予め第１の接合部材３２に設けられた凹部５８に係着され、該第１の接合部材３２の側壁面に略一致するように装着される。
【００２２】
次いで、第２の接合部材３４の孔部７８に挿通されたボルト１４の雄ねじ２０にワッシャ２６を挿入し、ナット２４を螺合する。これにより、第１および第２の接合部材３２、３４が互いに締結される。
【００２３】
この場合、第１および第２の接合部材３２、３４を締結する際にボルト１４の頭部がテーパ部１６、着座部１８を構成しているので、締付力によりボルト１４の頭部が第１の接合部材３２に埋没されない。よって、締付力を一定に保持することができる。なお、着座部１８は、第１の接合部材３２の凹部５８に係着されたが、該凹部５８を設けないで該第１の接合部材３２から露呈してもよい。
【００２４】
次に、図３に示されるように、上記の締付金具１０を用いて、第１の接合部材３２と、この第１の接合部材３２に略鉛直方向に接合する第２の接合部材３４とを締結する手順について説明する。この場合、第２の部材である接合金具３６を第２の接合部材３４に固定する。なお、図３中、図１および図２の構成要素と同一の構成要素には同一の参照符号を付して詳細な説明を省略する。
【００２５】
図３において、第１の接合部材３２に穿設された遊嵌孔３８には、土台３０に固定されたスタッドボルト４０が挿通されるとともに、前記第１の接合部材３２が前記土台３０に形成された免震機能を有する基礎パッキン４２上に載置される。
【００２６】
次に、接合金具３６を第２の接合部材３４に固定する。この場合、前記第２の接合部材３４に予め所定間隔離間して軸線に略直交するように２つの孔部４４、４６を形成しておき、こられの孔部４４、４６にボルト１４を挿通する。そして、図４に示されるように、ボルト１４の着座部１８をハンマー等で叩くと、テーパ部１６が突起２８をガイドにして孔部４４、４６に沿って第２の接合部材３４に挿着される。
【００２７】
ボルト１４の着座部１８のテーパ面を第２の接合部材３４に挿着した後に、雄ねじ２０に接合金具３６の孔部４８、５０、ワッシャ２６を挿入し、ナット２４を螺合する。これにより、接合金具３６が第２の接合部材３４に固定される。この場合、前記着座部１８は、予め第２の接合部材３４に設けられた凹部７２に係着されたが、該凹部７２を設けないで該第２の接合部材３４から露呈してもよい。
【００２８】
次いで、第２の接合部材３４を第１の接合部材３２に位置決めするために、接合金具３６の孔部５２にスタッドボルト４０の雄ねじ５４を挿入し、第２の接合部材３４における接合金具３６の位置決めを行う。
【００２９】
この後に、接合金具３６の孔部５２にスタッドボルト４０の雄ねじ５４を挿入し、ナット５６で締め付ける。これにより、第２の接合部材３４は第１の接合部材３２に強固に締め付けられるとともに、第２の接合部材３４と土台３０とによって第１の接合部材３２を挟持する状態となり、第１の接合部材３２と第２の接合部材３４と土台３０の接合部分の強度の確保が可能となる。
【００３０】
本実施の形態に係る締付金具１０を用いて第１および第２の接合部材３２、３４を互いに締結し、または接合金具３６を第２の接合部材３４に固定する際に、ボルト１４の頭部にテーパ部１６、着座部１８が形成されているので、締付力によりボルト１４の頭部が第１および第２の接合部材３２、３４に埋没されない。よって、締付力を一定に保持することができる。
【００３１】
図５は、本発明の第２の実施の形態に係る締付金具６０の概略構成を示す分解斜視図である。この第２の実施の形態に係る締付金具６０において、上記した第１の実施の形態に係る締付金具１０と同一の構成には同一の参照符号を付し、その詳細な説明を省略する。以下に示す第３の実施の形態についても同様とする。
【００３２】
この第２の実施の形態に係る締付金具６０において、第１の実施の形態に係る締付金具１０と異なる点は、ワッシャ２６に代えてテーパ部６４を有するテーパワッシャ（第２の保持金具）６２を用いた点にある。前記テーパワッシャ６２は、図５に示されるように、テーパ部６４が円錐形状を有しその大径側が略円形状の着座部６６に接合され、且つ前記テーパ部６４のテーパ面に沿って等間隔に離間して複数の突起６８が形成される。この場合、前記突起６８の先端を尖鋭に形成するとテーパ部６４が容易に第２の接合部材３４（図５参照）に挿着される。
【００３３】
勿論、突起６８は敢えて設けなくてもよい。なお、参照符号７０は、ボルト１４の雄ねじ２０が挿通される孔部である。
【００３４】
上記した締付金具６０を用いて、図６に示されるように、第１の接合部材３２と第２の接合部材３４とを互いに締結する手順について説明する。
【００３５】
まず、図６に示されるように、第１および第２の接合部材３２、３４を合わせる。この場合、第１および第２の接合部材３２、３４に予め軸線に略直交するように孔部７６、７８を形成しておき、これらの孔部７６、７８を合わせてボルト１４を挿通する。
【００３６】
そして、ハンマー等でボルト１４の着座部１８の外側面を叩くと、テーパ部１６が突起２８をガイドにして第１の接合部材３２の孔部７６に沿って挿着される。これにより、ボルト１４が第１の接合部材３２に挿着される。この場合、ボルト１４の着座部１８の外側面が第１の接合部材３２に設けられた凹部５８に係着され、該接合部材３２の側壁面に略一致するように装着される。
【００３７】
次いで、第２の接合部材３４の孔部７８に挿通されたボルト１４の雄ねじ２０にテーパワッシャ６２を挿入し、ハンマー等で該テーパワッシャ６２の着座部６６を叩いてテーパ部６４がボルト１４をガイドにして第２の接合部材３４に挿着される。
【００３８】
よって、テーパ部６４が第２の接合部材３４に挿着されるとテーパワッシャ６２の着座部６６の外側面が第２の接合部材３４の側壁面に密着される。なお、ボルト１４の着座部１８が第１の接合部材３２の凹部５８に係着されたが、該第１の接合部材３２から露呈してもよい。
【００３９】
この状態で、雄ねじ２０にナット２４を螺合し第１の接合部材３２と第２の接合部材３４が強固に締結される。
【００４０】
図７は、上記の締付金具６０を用いてナット２４、テーパワッシャ６２が第２の接合部材３４に設けた凹部８０に装着された状態を示す概略構成図である。図７中、図５および図６と同一の構成要素については、同一の参照符号を付して詳細な説明を省略する。
【００４１】
この図７においては、ボルト１４のテーパ部１６、テーパワッシャ６２のテーパ部６４が第１および第２の接合部材３２、３４のそれぞれに挿着される。よって、第１および第２の接合部材の３２、３４を互いに締結する際にテーパ部１６、６４のそれぞれが第１および第２の接合部材３２、３４に食い込まないので、該第１および第２の接合部材３２、３４に作用する締付力を一定に保持することが可能である。
【００４２】
図８は、本発明の第３の実施の形態に係る締付金具９０の概略構成を示す分解斜視図である。この第３の実施の形態に係る締付金具９０において、第１の実施の形態に係る締付金具１０と異なる点は、テーパ金具９２を設けた点にある。すなわち、テーパ金具９２は、図５に示される第２の実施の形態に係る締付金具６０を構成するテーパワッシャ６２を着座部６６とテーパ部６４に分離したことになる。
【００４３】
よって、テーパ金具９２の構成は、テーパワッシャ６２を構成するテーパ部６４（図５参照）に同じである。
【００４４】
図９に示されるように、上記した締付金具９０を用いて、第１の接合部材３２と第２の接合部材３４とを互いに固定する手順について説明する。
【００４５】
まず、図９に示されるように、第１および第２の接合部材３２、３４を合わせ、該第１および第２の接合部材３２、３４に予め軸線に略直交するように孔部７６、７８を形成しておき、これらの孔部７６、７８を合わせてボルト１４を挿通することは、第２の実施の形態に同じである。
【００４６】
そして、ハンマー等でボルト１４の着座部１８の外側面を叩くと、テーパ部１６が突起２８をガイドにして第１の接合部材３２の孔部７６に沿って挿着される。これにより、ボルト１４が第１の接合部材３２に挿着される。この場合、ボルト１４の着座部１８の外側面が第１の接合部材３２に設けられた凹部５８に係着され、該第１の接合部材３２の側壁面に略一致するように装着される。
【００４７】
次いで、第２の接合部材３４の孔部７８に挿通されたボルト１４の雄ねじ２０にテーパ金具９２を挿入し、ハンマー等で該テーパ金具９２を叩くと、テーパ部６４がボルト１４をガイドにして第２の接合部材３４に挿着される。このとき、前記テーパ金具９２の端面が第２の接合部材３４の側壁面に略一致するように装着される。この状態で、雄ねじ２０にワッシャ２６を挿入後、ナット２４を螺合し第１および第２の接合部材３２、３４が共に強固に締結される。
【００４８】
図１０は、ナット２４、ワッシャ２６およびテーパ金具９２が第２の接合部材３４に設けた凹部９４に装着された状態を示す概略構成図である。
【００４９】
なお、図９および図１０において、ボルト１４の着座部１８が第１の接合部材３２の凹部５８に係着されたが、該第１の接合部材３２から露呈してよい。
【００５０】
この第３の実施の形態に係る締付金具９０においては、ボルト１４のテーパ部１６、テーパ金具９２のテーパ部６４がそれぞれ第１および第２の接合部材３２、３４に挿着される。よって、第１および第２の接合部材の３２、３４に締結する際にテーパ部１６、６４が第１および第２の接合部材３２、３４に食い込むのを阻止されるので、第２の実施の形態と同様の効果が得られる。
【００５１】
【発明の効果】
本発明によれば、第１の接合部材に第１の保持金具の頭部が食い込むのを阻止するので、該第１および２の保持金具の締結力を一定に保持することができる。
【００５２】
さらに、第１および第２の接合部材にテーパ部を有する締付金具を挿着することにより、該第１および第２の接合部材を締結する際に該締付金具が第１および第２の接合部材に食い込むことが阻止されるので、締結力を一定に保持することができる。よって、第１および第２の接合部材が変形せず、素材としての強度を保持することが可能である。
【００５３】
また、第１および第２の接合部材が密着されるので、合材としての強度をより一層向上させるという効果が得られる。
【図面の簡単な説明】
【図１】本発明の第１の実施の形態に係る締付金具の分解斜視図である。
【図２】図１の締付金具を用いて第１のおよび第２の接合部材を締結した状態を示す斜視説明図である。
【図３】図１の締付金具を用いて第１の接合部材に締結する第２の接合部材を接合金具に固着した状態を示す斜視説明図である。
【図４】図３に示す締付金具のＩＶ−ＩＶ線に沿った断面図である。
【図５】本発明の第２の実施の形態に係る締付金具の分解斜視図である。
【図６】図５の締付金具を用いて第１および第２の接合部材を締結した状態を示す概略構成図である。
【図７】図５の締付金具を用いて第１および第２の接合部材を締結した状態の変形例を示す概略構成図である。
【図８】本発明の第３の実施の形態に係る締付金具の分解斜視図である。
【図９】図８の締付金具を用いて１および第２の接合部材を締結した状態を示す概略構成図である。
【図１０】図８の締付金具を用いて第１および第２の接合部材を締結した状態の変形例を示す概略構成図である。
【符号の説明】
１０、６０、９０…締付金具１２…第１の部材（第１の保持金具）
１４…ボルト１６、６４…テーパ部
１８、６６…着座部２０、５４…雄ねじ
２２…段差部２４、５６…ナット
２８、６８…突起３２…第１の接合部材
３４…第２の接合部材３６…第２の部材
４０…スタッドボルト４２…基礎パッキン
６２…テーパワッシャ（第２の保持金具）
９２…テーパ金具[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fastening member for fastening a first joining member and a joining fitting engaged with the first joining member to each other.
[0002]
[Prior art]
As a technique for fixing two members, for example, in order to fasten a first member extending in the longitudinal direction and a second member extending in the lateral direction, the first member is, for example, a foundation bolt. The thing of the structure fastened to the holding metal fitting engaged with is known. In this case, a structure is used in which a bolt is inserted into the first member, the male screw side of the bolt is inserted into the holding fitting, and a nut is screwed to fasten the first member and the holding fitting. ing.
[0003]
In this structure, since the head of the bolt is formed relatively thin, if the fastening force is increased, the head of the bolt engaged with the first member bites into the first member and the fastening force is increased. As a result, there is a problem that it is difficult to fasten the first member and the holding fitting in a fixed state. Furthermore, since the bolt bites into the first member, there is a problem that the first member becomes weak in strength.
[0004]
On the other hand, if the head of the bolt is thinned, there is a difficulty that a large step is generated between the first member and the flat surface.
[0005]
[Problems to be solved by the invention]
The present invention has been made in order to overcome the above-mentioned problems, has excellent strength, does not require so much advanced technology, and is capable of fastening a fastening member extremely firmly. The purpose is to provide a bracket.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a fastening bracket for fastening a first joining member and a second joining member,
A first holding fitting having a tapered portion inserted into the first joining member at least on one end side and having a screw portion on the other end side;
A second holding fitting threadably engaged with the first holding fitting;
With
A plurality of protrusions having a guide function spaced at equal intervals along the axis of the first holding metal are formed on the taper of the first holding metal, and the taper of the first holding metal is The first joining member and the second joining member are fastened by the first holding member and the second holding member.
[0007]
According to the present invention, the head of the first holding fitting is prevented from biting into the first joining member, and the fastening force by the first and second holding fittings is always held constant.
[0008]
In this case, the first holding fitting is inserted into the first joining member and the joining fitting fixed to the first joining member, and the first holding fitting and the second holding fitting provide the first holding fitting. When the first joining member and the joining fitting are fastened, the head of the first holding fitting is prevented from biting into the first joining member, and the fastening force by the first and second holding fittings is constant. become.
[0009]
Further, the present invention is a fastening bracket for fastening the first joining member and the second joining member,
A first holding member having a taper portion at least on one end side and inserted through a first joining member and a second joining member joined to the first joining member, and having a screw portion on the other end side;
A second holding fitting threadably engaged with the first holding fitting;
A third holding fitting having a tapered portion inserted into the second joining member and inserted through the first holding fitting;
With
A plurality of protrusions having a guide function spaced at equal intervals along the axis of the first holding metal are formed on the taper of the first holding metal, and the taper of the first holding metal is The first holding member is inserted into the first holding member, the third holding member is inserted into the second connecting member, and the second holding member is screwed into the first holding member. The joining member and the second joining member are fastened.
[0010]
According to the present invention, the strength of the first and second bonding members can be further improved by bringing the adjacent first and second bonding members into close contact and fastening.
[0011]
In this case, it is sufficient that the third holding metal fitting can be firmly attached to the second joining member when the seating portion is provided in the tapered portion.
[0012]
In this case, when the first and third holding fittings are spaced apart at equal intervals along the tapered surface of the taper portion and a plurality of protrusions are formed, the first and third holding fittings are formed using the protrusions as a guide. The taper portion of the metal fitting is easily inserted into the first and second joining members, respectively.
[0013]
Furthermore, it is suitable because it has a function of preventing the first and third holding members from rotating with respect to the first and second joining members.
[0014]
In addition, when the protrusions are evenly formed at a plurality of locations in the circumferential direction, the first and third holding brackets are substantially perpendicular to the axes of the first and second joining members. The fastening force of the first and second joining members may be made constant by being inserted into one or two joining members.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the fastening hardware according to the present invention will be described below and described in detail with reference to the accompanying drawings.
[0016]
FIG. 1 is an exploded perspective view of a fastening hardware 10 according to the first embodiment of the present invention. The fastening fitting 10 includes a first member 12. The first member (first holding metal fitting) 12 is a bolt 14 having a conical tapered portion 16 on one side, and a substantially circular thin seating portion on the large diameter side of the tapered portion 16. 18 is provided and a male screw 20 is formed on the other side. The tapered portion 16 is formed with a tapered surface inclined toward the axial center, and a plurality of protrusions 28 are formed at equal intervals along the tapered surface. It functions as a detent when it is attached to 34. In this case, when the tip of the protrusion 28 is sharply formed, the tapered portion 16 is easily inserted into the second bonding member 34.
[0017]
A stepped portion 22 having a smaller diameter than the male screw 20 is formed at the end of the male screw 20. The step portion 22 has a guide function when the nut 24 is screwed onto the male screw 20. In this case, the stepped portion 22 is not limited to a cylindrical shape, and may be a conical shape.
[0018]
Reference numeral 26 indicates a washer inserted into the bolt 14.
[0019]
Next, as shown in FIG. 2, a procedure for fastening the first joining member 32 and the second joining member 34 to each other using the above-described fastening fitting 10 will be described.
[0020]
First, as shown in FIG. 2, the first and second joining members 32 and 34 are aligned. In this case, holes 76 and 78 are previously formed in the first and second joining members 32 and 34 so as to be substantially orthogonal to the axis, and the bolts 14 are inserted through the holes 76 and 78 together.
[0021]
When the outer surface of the seating portion 18 is hit with a hammer or the like, the tapered portion 16 is inserted along the hole 76 of the first joining member 32 with the projection 28 as a guide. Accordingly, the bolt 14 is inserted through the first and second joining members 32 and 34. In this case, the outer surface of the seating portion 18 of the bolt 14 is engaged in advance with a recess 58 provided in the first joining member 32 and is mounted so as to substantially coincide with the side wall surface of the first joining member 32. .
[0022]
Next, the washer 26 is inserted into the male screw 20 of the bolt 14 inserted through the hole 78 of the second joining member 34, and the nut 24 is screwed together. Thereby, the 1st and 2nd joining members 32 and 34 are fastened mutually.
[0023]
In this case, when the first and second joining members 32 and 34 are fastened, the head portion of the bolt 14 forms the tapered portion 16 and the seating portion 18, so that the head portion of the bolt 14 is moved by the tightening force. It is not buried in one joining member 32. Therefore, the tightening force can be kept constant. Although the seating portion 18 is engaged with the recess 58 of the first joining member 32, the seating portion 18 may be exposed from the first joining member 32 without providing the recess 58.
[0024]
Next, as shown in FIG. 3, by using the above-described fastening metal fitting 10, a first joining member 32 and a second joining member 34 joined to the first joining member 32 in a substantially vertical direction, The procedure for fastening is described. In this case, the joining fitting 36 as the second member is fixed to the second joining member 34. In FIG. 3, the same components as those of FIGS. 1 and 2 are denoted by the same reference numerals, and detailed description thereof is omitted.
[0025]
In FIG. 3, a stud bolt 40 fixed to the base 30 is inserted into a loose fitting hole 38 formed in the first joint member 32, and the first joint member 32 is formed in the base 30. Placed on the foundation packing 42 having the seismic isolation function.
[0026]
Next, the joining fitting 36 is fixed to the second joining member 34. In this case, two holes 44 and 46 are formed in the second bonding member 34 in advance so as to be spaced apart from each other by a predetermined distance so as to be substantially orthogonal to the axis, and the bolts 14 are inserted into these holes 44 and 46. To do. Then, as shown in FIG. 4, when the seating portion 18 of the bolt 14 is hit with a hammer or the like, the taper portion 16 is inserted into the second joining member 34 along the holes 44 and 46 using the projection 28 as a guide. Is done.
[0027]
After the tapered surface of the seating portion 18 of the bolt 14 is inserted into the second joining member 34, the holes 48 and 50 of the joint fitting 36 and the washer 26 are inserted into the male screw 20, and the nut 24 is screwed together. Thereby, the joining fitting 36 is fixed to the second joining member 34. In this case, the seating portion 18 is previously engaged with the recess 72 provided in the second joining member 34, but may be exposed from the second joining member 34 without providing the recess 72.
[0028]
Next, in order to position the second joining member 34 on the first joining member 32, the male screw 54 of the stud bolt 40 is inserted into the hole 52 of the joining fitting 36, and the joining fitting 36 in the second joining member 34 is inserted. Perform positioning.
[0029]
Thereafter, the male screw 54 of the stud bolt 40 is inserted into the hole 52 of the joint fitting 36 and tightened with the nut 56. As a result, the second bonding member 34 is firmly clamped to the first bonding member 32, and the first bonding member 32 is sandwiched between the second bonding member 34 and the base 30, so that the first bonding member 34 It is possible to ensure the strength of the joining portion of the member 32, the second joining member 34, and the base 30.
[0030]
When the first and second joining members 32 and 34 are fastened to each other using the fastening fitting 10 according to the present embodiment, or when the joining fitting 36 is fixed to the second joining member 34, the head of the bolt 14. Since the taper part 16 and the seating part 18 are formed in the part, the head of the bolt 14 is not buried in the first and second joining members 32 and 34 by the tightening force. Therefore, the tightening force can be kept constant.
[0031]
FIG. 5 is an exploded perspective view showing a schematic configuration of a fastening hardware 60 according to the second embodiment of the present invention. In the fastening hardware 60 according to the second embodiment, the same components as those of the fastening hardware 10 according to the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted. . The same applies to the third embodiment described below.
[0032]
The fastening metal fitting 60 according to the second embodiment differs from the fastening metal fitting 10 according to the first embodiment in that a taper washer (second holding metal fitting) having a taper portion 64 instead of the washer 26. ) 62. As shown in FIG. 5, the tapered washer 62 has a tapered portion 64 having a conical shape, and a large diameter side thereof is joined to a substantially circular seating portion 66, and along the tapered surface of the tapered portion 64. A plurality of protrusions 68 are formed at intervals. In this case, when the tip of the protrusion 68 is formed sharply, the tapered portion 64 is easily inserted into the second bonding member 34 (see FIG. 5).
[0033]
Of course, the protrusion 68 may not be provided. Reference numeral 70 is a hole through which the male screw 20 of the bolt 14 is inserted.
[0034]
A procedure for fastening the first joining member 32 and the second joining member 34 to each other as shown in FIG. 6 using the above-described fastening fitting 60 will be described.
[0035]
First, as shown in FIG. 6, the first and second joining members 32 and 34 are aligned. In this case, holes 76 and 78 are previously formed in the first and second joining members 32 and 34 so as to be substantially orthogonal to the axis, and the bolts 14 are inserted through the holes 76 and 78 together.
[0036]
When the outer surface of the seating portion 18 of the bolt 14 is hit with a hammer or the like, the tapered portion 16 is inserted along the hole 76 of the first joining member 32 with the projection 28 as a guide. As a result, the bolt 14 is inserted into the first joining member 32. In this case, the outer surface of the seating portion 18 of the bolt 14 is engaged with the recess 58 provided in the first joining member 32, and is mounted so as to substantially coincide with the side wall surface of the joining member 32.
[0037]
Next, the taper washer 62 is inserted into the male screw 20 of the bolt 14 inserted through the hole 78 of the second joining member 34, and the seating portion 66 of the taper washer 62 is hit with a hammer or the like so that the taper portion 64 causes the bolt 14 to move. A guide is inserted into the second joining member 34.
[0038]
Therefore, when the tapered portion 64 is inserted into the second bonding member 34, the outer surface of the seating portion 66 of the taper washer 62 is brought into close contact with the side wall surface of the second bonding member 34. The seating portion 18 of the bolt 14 is engaged with the recess 58 of the first joining member 32, but may be exposed from the first joining member 32.
[0039]
In this state, the nut 24 is screwed onto the male screw 20, and the first joining member 32 and the second joining member 34 are firmly fastened.
[0040]
FIG. 7 is a schematic configuration diagram showing a state in which the nut 24 and the taper washer 62 are mounted in the recess 80 provided in the second joining member 34 using the above-described fastening metal fitting 60. In FIG. 7, the same components as those in FIGS. 5 and 6 are denoted by the same reference numerals, and detailed description thereof is omitted.
[0041]
In FIG. 7, the taper portion 16 of the bolt 14 and the taper portion 64 of the taper washer 62 are inserted and attached to the first and second joining members 32 and 34, respectively. Accordingly, when the first and second joining members 32 and 34 are fastened to each other, each of the tapered portions 16 and 64 does not bite into the first and second joining members 32 and 34. The fastening force acting on the joining members 32 and 34 can be kept constant.
[0042]
FIG. 8 is an exploded perspective view showing a schematic configuration of a fastening hardware 90 according to the third embodiment of the present invention. The fastening bracket 90 according to the third embodiment is different from the fastening bracket 10 according to the first embodiment in that a tapered fitting 92 is provided. That is, the taper fitting 92 is obtained by separating the taper washer 62 constituting the fastening fitting 60 according to the second embodiment shown in FIG. 5 into the seating portion 66 and the taper portion 64.
[0043]
Therefore, the configuration of the taper fitting 92 is the same as that of the taper portion 64 (see FIG. 5) constituting the taper washer 62.
[0044]
As shown in FIG. 9, a procedure for fixing the first joining member 32 and the second joining member 34 to each other using the above-described fastening fitting 90 will be described.
[0045]
First, as shown in FIG. 9, the first and second joining members 32, 34 are combined, and the holes 76, 78 are preliminarily orthogonal to the first and second joining members 32, 34 so as to be substantially orthogonal to the axis. And the bolts 14 are inserted through the holes 76 and 78 in the same manner as in the second embodiment.
[0046]
When the outer surface of the seating portion 18 of the bolt 14 is hit with a hammer or the like, the tapered portion 16 is inserted along the hole 76 of the first joining member 32 with the projection 28 as a guide. As a result, the bolt 14 is inserted into the first joining member 32. In this case, the outer surface of the seating portion 18 of the bolt 14 is engaged with the recess 58 provided in the first joining member 32, and is mounted so as to substantially coincide with the side wall surface of the first joining member 32.
[0047]
Next, when the taper fitting 92 is inserted into the male screw 20 of the bolt 14 inserted through the hole 78 of the second joining member 34 and the taper fitting 92 is hit with a hammer or the like, the taper portion 64 uses the bolt 14 as a guide. It is inserted into the second bonding member 34. At this time, the taper fitting 92 is mounted so that the end surface thereof substantially coincides with the side wall surface of the second joining member 34. In this state, after the washer 26 is inserted into the male screw 20, the nut 24 is screwed together, and the first and second joining members 32 and 34 are both firmly fastened.
[0048]
FIG. 10 is a schematic configuration diagram illustrating a state in which the nut 24, the washer 26, and the taper fitting 92 are mounted in the recess 94 provided in the second joining member 34.
[0049]
9 and 10, the seating portion 18 of the bolt 14 is engaged with the recess 58 of the first joining member 32, but may be exposed from the first joining member 32.
[0050]
In the fastening fitting 90 according to the third embodiment, the tapered portion 16 of the bolt 14 and the tapered portion 64 of the tapered fitting 92 are inserted into the first and second joining members 32 and 34, respectively. Therefore, the taper portions 16 and 64 are prevented from biting into the first and second joining members 32 and 34 when fastened to the first and second joining members 32 and 34. The same effect as the form can be obtained.
[0051]
【The invention's effect】
According to the present invention, since the head of the first holding fitting is prevented from biting into the first joining member, the fastening force of the first and second holding fittings can be kept constant.
[0052]
Further, by inserting a fastening fitting having a tapered portion into the first and second joining members, the fastening fitting is attached to the first and second fastening members when fastening the first and second joining members. Since the biting into the joining member is prevented, the fastening force can be kept constant. Therefore, the first and second joining members are not deformed, and the strength as a material can be maintained.
[0053]
Moreover, since the 1st and 2nd joining member is closely_contact | adhered, the effect that the intensity | strength as a compound material is improved further is acquired.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a fastener according to a first embodiment of the present invention.
2 is a perspective explanatory view showing a state in which the first and second joining members are fastened using the fastening fitting of FIG. 1; FIG.
FIG. 3 is a perspective explanatory view showing a state in which a second joining member fastened to the first joining member is fixed to the joining fitting using the fastening fitting of FIG. 1;
4 is a cross-sectional view taken along line IV-IV of the fastener shown in FIG.
FIG. 5 is an exploded perspective view of a fastening hardware according to a second embodiment of the present invention.
6 is a schematic configuration diagram showing a state in which the first and second joining members are fastened using the fastening metal fitting of FIG. 5;
7 is a schematic configuration diagram showing a modified example of a state in which the first and second joining members are fastened using the fastening hardware of FIG. 5. FIG.
FIG. 8 is an exploded perspective view of a fastener according to a third embodiment of the present invention.
FIG. 9 is a schematic configuration diagram showing a state in which the first and second joining members are fastened using the fastening fitting of FIG. 8;
FIG. 10 is a schematic configuration diagram showing a modified example in a state in which the first and second joining members are fastened using the fastening fitting of FIG. 8;
[Explanation of symbols]
10, 60, 90 ... Fastening bracket 12 ... First member (first holding bracket)
DESCRIPTION OF SYMBOLS 14 ... Bolt 16, 64 ... Tapered part 18, 66 ... Seating part 20, 54 ... Male screw 22 ... Step part 24, 56 ... Nut 28, 68 ... Protrusion 32 ... 1st joining member 34 ... 2nd joining member 36 ... Second member 40 ... Stud bolt 42 ... Foundation packing 62 ... Taper washer (second holding bracket)
92 ... Taper fitting

Claims

A fastening bracket for fastening the first joining member and the second joining member,
A first holding fitting having a taper portion inserted into the first joining member at least on one end side and having a screw portion on the other end side;
A second holding fitting threadably engaged with the first holding fitting;
With
A plurality of protrusions having a guide function spaced at equal intervals along the axis of the first holding metal are formed on the tapered part of the first holding metal, and the taper of the first holding metal is connected to the first holding metal. A fastening fitting, wherein the fastening member is inserted into one joining member, and the first joining member and the second joining member are fastened by the first holding fitting and the second holding fitting.

The fastening bracket according to claim 1,
The first holding fitting is inserted into the first joining member and the joining fitting fixed to the first joining member, and the first joining fitting is joined by the first holding fitting and the second holding fitting. A fastening bracket, wherein a member and the joint fitting are fastened.

A fastening bracket for fastening the first joining member and the second joining member,
A first holding member having a taper part at least on one end side and inserted through a first joining member and a second joining member joined to the first joining member and having a threaded part on the other end side;
A second holding fitting threadably engaged with the first holding fitting;
A third holding fitting having a tapered portion inserted into the second joining member and inserted through the first holding fitting;
With
A plurality of protrusions having a guide function spaced at equal intervals along the axis of the first holding metal are formed on the tapered part of the first holding metal, and the taper of the first holding metal is connected to the first holding metal. The first holding member is inserted into the first holding member, the third holding member is inserted into the second connecting member, and the second holding member is screwed into the first holding member. The fastening member, wherein the second joining member and the second joining member are fastened together.

The fastening bracket according to claim 3,
The third holding metal fitting is a fastening metal fitting in which a seating portion is provided in a tapered portion.

The fastening bracket according to claim 3 or 4,
The third holding metal fitting is characterized in that a plurality of protrusions spaced at equal intervals along the taper surface of the taper portion are formed.

The fastening bracket according to any one of claims 1 to 5 ,
The fastening fitting is characterized in that the protrusions are uniformly formed at a plurality of locations in a circumferential direction.