JP2004144247A

JP2004144247A - Member connecting structure and frame structure assembling structure

Info

Publication number: JP2004144247A
Application number: JP2002311653A
Authority: JP
Inventors: Shigenori Sobashima; 傍嶋　重憲
Original assignee: DAISHIN IND Ltd; DAISHIN INDUSTRIES Ltd
Current assignee: DAISHIN IND Ltd; DAISHIN INDUSTRIES Ltd
Priority date: 2002-10-25
Filing date: 2002-10-25
Publication date: 2004-05-20

Abstract

<P>PROBLEM TO BE SOLVED: To provide the member connecting structure and the frame structure assembling structure capable of maintaining secure fixation of a pipe member and a beam member to each other by preventing the generation of looseness of a fastening member such as a bolt. <P>SOLUTION: A frame structure 12 is formed of pipe members 14, beam members 16 horizontally stretched between the pipe members 14, and engaging pieces 30 for fixing each of the beam members 16 to the pipe members 14. A first curved part 26, which is curved inward, of the beam member 16 is made to abut on the pipe member 14 from outside, and a second curved part 36, which is curved outward, of the engaging piece 30 is made to abut on the pipe member 14 from inside, and a second hook part 32 of the engaging piece 30 is fitted on a first hook part 22 of the beam member 16. In this condition, the beam member 16 and the engaging piece 30 are fastened together by a fastening member 40 to connect the beam member 16 and the pipe member 14 to each other. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
この発明は、部材接続構造およびフレーム構造体の組立て構造に関し、例えばエンジンポンプやエンジン発電機等の機器が配設されるフレーム構造体を構成するパイプ状部材と梁部材とを組立てる際に利用される、部材接続構造およびフレーム構造体の組立て構造に関するものである。
【０００２】
【従来の技術】
エンジンを利用したポンプや発電機等の機器において、これらの機器を搬送したり据付ける場合に、直接機器を取扱うことはその形状や作動に伴う発熱等のため困難である。このため、図８に示すように、パイプ状部材１４と平板状の梁部材１６とを組立てて構成したフレーム構造体１２に、前記機器１０を配設した状態で取扱っている。このフレーム構造体１２は、内側に配設された機器１０を保護すると共に、搬送や据付けなどの該機器１０の移動に際して、該機器１０を安定的に移動するためのキャリアーとしても機能する。また、機器１０とフレーム構造体１２との間に、例えばゴム部材のような防振手段（図示せず）を設けることにより、該機器１０の作動に伴う振動が外部に伝わるのを阻止し、また該機器１０の作動音を抑制することができる。
【０００３】
従来のフレーム構造体１２は、金属製のパイプ材や角材を例えばロの字状に折曲して形成されて、その開口面を平行に対向させて立設した１対のパイプ状部材１４，１４と、該パイプ状部材１４，１４の水平に延在している上側および下側に位置する横枠材１４ａ，１４ａ間に横架されて、所定間隔離間する所要数の梁部材１６とから構成される。下側に配設された少なくとも１本の梁部材１６は、機器１０が載置されるベース部材１８として機能するよう設定され、該機器１０を固定するための所要数の取付孔（図示せず）が開設されている。前記梁部材１６およびベース部材１８は、前記パイプ状部材１４に溶接することで固定される。しかる後に、前記フレーム構造体１２を所定の手段で塗装し、塗装された該フレーム構造体１２のベース部材１８に機器１０を載置して、該ベース部材１８に開設された取付孔にボルト等の締結部材を挿通して締結することで、該機器１０はフレーム構造体１２に配設される。
【０００４】
前述のように、従来のフレーム構造体１２はパイプ状部材１４と梁部材１６とを溶接して組立てた後、次の機器１０の取付け工程に供給される。組立てられたフレーム構造体１２は嵩張るため、該フレーム構造体１２を搬送する際に、その取扱いが煩雑になると共に、大量に輸送することができない。また、重ね合わせができる形状でないので、フレーム構造体１２の保管において、多くのスペースが必要になってしまう問題もある。そして、前記フレーム構造体１２の塗装工程においても、嵩が大きい故に取扱いが不便であり、またスプレーによる吹き付け塗装はロスが大きく塗装コストが嵩む問題も指摘される。
【０００５】
前述の問題を回避するための手段として、パイプ状部材１４を所定位置で分割可能に構成して、この分割部分をネジで固定するフレーム構造体１２が提案されている。このフレーム構造体１２では、パイプ状部材１４と梁部材１６との接続を溶接によらず、ネジ止めによる締結で組立てている（例えば、特許文献１参照。）。
【０００６】
【特許文献１】
特開平１１−４４３９５号公報
【０００７】
【発明が解決しようとする課題】
しかし、分割されたパイプ状部材１４同士またはパイプ状部材１４と梁部材１６とをネジ等の締結部材で組立てる構成のフレーム構造体１２では、配設された機器１０の作動に伴う振動により前記パイプ状部材１４同士またはパイプ状部材１４と梁部材１６とを締結しているネジが緩み、フレーム構造体１２がガタついたり、機器１０を安定的に保持できない欠点ある。従って、定期的なネジの増し締め作業が必要となり、手間がかかってしまう問題が指摘される。
【０００８】
【発明の目的】
この発明は、従来の技術に係る部材接続構造およびフレーム構造体の組立て構造に内在している前記問題に鑑み、これを好適に解決するべく提案されたものであって、組立てた構成部材に配設された機器の振動等により締結部材が緩むことがなく、各構成部材の確実な固定を維持できる部材接続構造を提供し、併せてこの部材接続構造を利用することにより、フレーム構造体を構成するパイプ状部材と梁部材との確実な固定を維持できるフレーム構造体の組立て構造を提供することを目的とする。
【０００９】
【課題を解決するための手段】
前記課題を克服し、所定の目的を達成するため本発明に係る部材接続構造は、パイプ状部材と梁部材との接続を行なう部材接続構造において、
前記梁部材が前記パイプ状部材に外方から当接して内側へ湾曲する部位に形成され、その端部を外方に向けＵ字状に折返してなる第１フック部と、
前記梁部材と別体をなす附属部材であって、その一端を前記パイプ状部材に内方から当接して外側へ湾曲する部位に形成され、その端部を逆Ｕ字状に折返すことで前記第１フック部に嵌着可能な第２フック部を備えた係合片と、
前記梁部材における内側への湾曲部を前記パイプ状部材に外方から当接させると共に、前記係合片における外側への湾曲部を該パイプ状部材に内方から当接させ、かつ該梁部材の第１フック部に該係合片の第２フック部を嵌着させた状態で、前記梁部材と係合片の共締めを行なう締結部材とから構成したことを特徴とする。
【００１０】
また、前記課題を克服し、所定の目的を達成するため本発明に係るフレーム構造体の組立て構造は、
所要間隔を保持して対向配置される１対のパイプ状部材と、前記１対のパイプ状部材に横架されて該パイプ状部材の夫々に端部固定される所要数の梁部材とからなり、主としてエンジン発電機等の機器が配設されるフレーム構造体において、
前記梁部材が前記パイプ状部材に外方から当接して内側へ湾曲する部位に形成され、その端部を外方に向けＵ字状に折返してなる第１フック部と、
前記梁部材と別体をなす附属部材であって、その一端を前記パイプ状部材に内方から当接して外側へ湾曲する部位に形成され、その端部を逆Ｕ字状に折返すことで前記第１フック部に嵌着可能な第２フック部を備えた係合片と、
前記梁部材における内側への湾曲部を前記パイプ状部材に外方から当接させると共に、前記係合片における外側への湾曲部を該パイプ状部材に内方から当接させ、かつ該梁部材の第１フック部に該係合片の第２フック部を嵌着させた状態で、前記梁部材と係合片の共締めを行なう締結部材とから構成したことを特徴とする。
【００１１】
【発明の実施の形態】
次に、本発明の好適な実施例に係る部材接続構造およびフレーム構造体の組立て構造につき、好適な実施例を挙げて、添付図面を参照して以下に説明する。なお、説明の便宜上、図８に示したフレーム構造体の構成要素と同一の要素については、同一の符号を使用して説明する。また、実施例において、エンジン発電機やエンジンポンプ等の機器が配設されたフレーム構造体の組立て構造の場合で説明するが、部材接続構造を用いる対象物としては、エンジン発電機やエンジンポンプ等の機器を内側に配設するフレーム構造体に限られるものではない。
【００１２】
図１〜図３に示すように、１対のパイプ状部材１４，１４と、立設した該パイプ状部材１４，１４において水平に延在して対向する上側および下側の横枠材１４ａ，１４ａ間に横架した所要数の梁部材１６と、各梁部材１６を横枠材１４ａに固定するための係合片３０とからフレーム構造体１２は構成されている。前記パイプ状部材１４は、内側に配設される前記機器１０の大きさに合わせてパイプ材をロの字状に折曲したものである。そして、図４に示すように、前記横枠材１４ａの各梁部材１６と当接する部位には、該梁部材１６の後述する突出片２８に対応する個所に該突出片２８の嵌入を許容する開口部１４ｂが夫々開設されている。
【００１３】
図５に示すように、前記梁部材１６は所要の弾力性を持つ板材を、該梁部材１６が前記パイプ状部材１４に当接する部位を除いた胴部１６ａの断面形状が、下方に開放したコの字状になるよう形成したものである。この梁部材１６の長さは、向かい合う１対の横枠材１４ａ，１４ａの間に該梁部材１６を横架した際、パイプ状部材１４，１４と梁部材１６に囲まれる空間に機器１０が配設し得る寸法に設定されている。図４および図６に示すように、前記梁部材１６の両端部には、前記横枠材１４ａの上側外周に沿って湾曲させた第１湾曲部２６が形成され、該第１湾曲部２６の折曲半径は前記パイプ状部材１４の外周円の半径より若干小さく設定される。前記第１湾曲部２６の下面には、前記パイプ状部材１４の頂上部と当接する部位に、下方に向かって突出する突出片２８が形成される。また、前記第１湾曲部２６における横枠材１４ａの外側に臨む部位には、その端部を外方に向かってＵ字状に折返した第１フック部２２が形成されている。
【００１４】
前記梁部材１６は、第１湾曲部２６がパイプ状部材１４に上方より当接して、前記突出片２８を該パイプ状部材１４の開口部１４ｂに嵌入し、前記第１フック部２２をフレーム構造体１２の外方に配置した状態で配設されている。このとき梁部材１６は、前記第１フック部２２と、該梁部材１６の胴部１６ａにおける幅方向両側の側板部１６ｂ，１６ｂの端部とが、前記横枠材１４ａを挟んで対向的に当接して、該横枠材１４ａに対して内外方向への移動が規制されるようになっている。更に、前記梁部材１６の第１湾曲部２６に近接する胴部１６ａの水平面には、所要径の第１挿通孔２４が穿設されている。なお、前述した第１湾曲部２６、突出片２８、第１フック部２２および第１挿通孔２４からなる梁部材１６の接続部分は、該梁部材１６の両端に左右対称に形成され、向かい合う１対の横枠材１４ａ，１４ａに上方より夫々の第１湾曲部２６，２６が当接している。
【００１５】
前記係合片３０は、梁部材１６と別体をなす附属部材であって、所要の弾力性を有する板材からなり、その幅は前記梁部材１６おける胴部１６ａの開放端より該胴部１６ａに内挿し得る幅（両側板部１６ｂ，１６ｂの離間寸法より小さい幅）に設定されている。この係合片３０の一方の端部には、前記横枠材１４ａの下側外周に沿って折曲された第２湾曲部３６が形成され、該第２湾曲部３６の折曲半径は該横枠材１４ａの外周円の半径より若干小さく設定される。また、前記第２湾曲部３６における横枠材１４ａの外側に臨む部位には、その端部を内側に向けて逆Ｕ字状に折返すことで下方に開放した第２フック部３２が形成されている。更に、係合片３０の他方の端部には、上方に向けて直角に折曲した垂直部３０ａが形成される。この係合片３０は、第２フック部３２が前記梁部材１６の第１フック部２２に嵌着されたもとで、前記横枠材１４ａに下方より第２湾曲部３６が当接すると共に、該梁部材１６における胴部１６ａの水平面に垂直部３０ａが当接した状態で該横枠材１４ａに位置決めされる。また、前記係合片３０には、前記梁部材１６の胴部１６ａに穿設された第１挿通孔２４と整列可能な位置に第２挿通孔３４が穿設されており、両挿通孔２４，３４に共通的に挿通した締結部材４０を構成する所要長のボルト４１にナット４２を螺合して梁部材１６と係合片３０とを共締めすることで、該梁部材１６が横枠材１４ａに位置決め固定されている。
【００１６】
下側の横枠材１４ａ，１４ａ間に横架された少なくとも１本の梁部材１６は、前記機器１０が載置されるベース部材１８として利用され、図１に示すように、該ベース部材１８は、機器１０を載置可能なように、その胴部１６ａが他の梁部材１６よりも幅広に設定される。また、前記ベース部材１８の両端には、図７に示すように、前記第１湾曲部２６，第１フック部２２，第１挿通孔２４，突出片２８からなる接続部分が幅方向に離間した個所に形成され、前述したように各接続部分と係合片３０とを締結部材４０で共締めすることで、横枠材１４ａに位置決めされている。なお、前記ベース部材１８における胴部１６ａの水平面の所要位置には、前記機器１０を載置固定するための所要数の取付孔（図示せず）が開設されている。
【００１７】
【実施例の作用】
次に、実施例に係る部材接続構造およびフレーム構造体の組立て構造の作用について説明する。前記梁部材１６（ベース部材１８）をパイプ状部材１４の横枠材１４ａに組付ける際には、先ず前記梁部材１６の第１湾曲部２６を該横枠材１４ａの上方より当接させ、該梁部材１６の突出片２８をパイプ状部材１４の開口部１４ｂに嵌入させる。このとき前記梁部材１６における両側板部１６ｂ，１６ｂの端部と、第１湾曲部２６および第１フック部２２とが前記横枠材１４ａに夫々当接している。次に、前記第１フック部２２に係合片３０の第２フック部３２を嵌着させたもとで、該係合片３０の第２湾曲部３６を該横枠材１４ａに下方より当接させる。その後、前記梁部材１６に穿設された第１挿通孔２４の軸心と前記係合片３０に穿設された第２挿通孔３４の軸心を整列させ、前記ボルト４１を第１挿通孔２４および第２挿通孔３４に対して該梁部材１６の上方より共通的に挿通し、該ボルト４１の係合片３０より突出する部分にナット４２を螺合して共締めする。これにより梁部材１６は、該梁部材１６および係合片３０の両湾曲部２６，３６で所要圧にて上下より横枠材１４ａを挟持した状態で該横枠材１４ａに固定される。また、このとき係合片３０の上方に延出した垂直部３０ａがナット４２の締込みに伴い、前記梁部材１６における胴部１６ａの水平面に当接することで、垂直部３０ａのそれ以上の移動は規制される。
【００１８】
前記梁部材１６の横枠材１４ａに対する固定状態において、前記突出片２８は、前記パイプ状部材１４の開口部１４ｂに嵌入して軸方向の移動が規制されると共に、該梁部材１６における両側板部１６ｂ，１６ｂの端部と両フック部２２，３２で該横枠材１４ａを挟持して、内外方向への移動が規制されている。従って、フレーム構造体１２に配設された機器１０の作動に伴う振動によって、梁部材１６がパイプ状部材１４の固定位置よりずれることを確実に防止することができる。また、パイプ状部材１４における梁部材１６の固定位置に予め開口部１４ｂを設けてあるので、フレーム構造体１２の組立ての際に、梁部材１６の位置決めが容易である。
【００１９】
前記梁部材１６の第１湾曲部２６および前記係合片３０の第２湾曲部３６に囲繞される空間は、前記横枠材１４ａの外径寸法より若干小さく設定されている。例えば、横枠材１４ａのパイプ直径が２２ｍｍに対して、第１湾曲部２６および第２湾曲部３６に囲繞される空間を、直径が２１ｍｍの大きさに設定した場合、図４（ｂ）に示すように、梁部材１６および係合片３０の両湾曲部２６，３６で横枠材１４ａを上下より対向させて両フック部２２，３２を嵌着すると、該係合片３０の垂直部３０ａは前記胴部１６ａの水平面に当接しない下方位置に臨む。この係合片３０における第２挿通孔３４の軸心を前記梁部材１６における第１挿通孔２４の軸心に整列して、共通的に前記ボルト４１を梁部材１６の上方より挿通すると、前記係合片３０の第２フック部３２には内方への張力が付加される。すなわち、前記第２フック部３２は嵌着している梁部材１６の第１フック部２２を引っ張り、第１湾曲部２６は横枠材１４ａに押付けられる。そして、前記係合片３０より突出した前記ボルト４１にナット４２を螺合して共締めし、前記垂直部３０ａが胴部１６ａの水平面に当接した以後も更に締め込むことで、該係合片３０は弾力的に撓曲して第２湾曲部３６は前記横枠材１４ａに押付けられる。このとき、前記第２フック部３２には第１フック部２２を横枠材１４ａに押付ける張力が作用し、これにより両湾曲部２６，３６は挟圧状態で前記横枠材１４ａを強固に挟持する。このように、係合片３０が両フック部２２，３２に張力を付加するように弾力的に撓曲することにより、梁部材１６は横枠材１４ａに強固に固定される。
【００２０】
前記梁部材１６は弾力性を持つ板材で形成されているので、前述のように別体の係合片３０により張力を付加されると、該梁部材１６の第１湾曲部２６は密着的にパイプ状部材１４に当接する。しかし、前記梁部材１６の胴部１６ａは断面形状がコの字状に形成されているので、構造的にゆがみにくく、フレーム構造体１２として十分な構造強度を得ることができる。
【００２１】
前記締結部材４０を構成するボルト４１とナット４２には、前記係合片３０が撓曲状態を解除しようとする力が締結方向と反対方向に常に加わっている。すなわち、スプリングワッシャを介在させた状態と同様になっているので、フレーム構造体１２に配設された機器１０の作動に伴う振動により、前記ボルト４１とナット４２との締結状態が緩むことを抑制することができる。従って、定期的なナット４２の増し締め作業を省略またはその期間を長くすることができ、省力化が図られる。
【００２２】
【発明の効果】
以上に説明した如く、本発明に係る部材接続構造およびフレーム構造体の組立て構造によれば、梁部材と別体の係合片がバネ部材の如く撓むことにより、両フック部を介して梁部材の第１湾曲部がパイプ状部材に押付けられると共に、係合片の第２湾曲部が該パイプ状部材に押付けられ、両湾曲部にてパイプ状部材を強固に挟持することで固定することができる。また、梁部材と係合片を共締めする締結部材には、係合片の反発力によりスプリングワッシャを介在させた如く押圧力が付加されるので、内側に配設した機器の振動により、締結部材の締結状態が緩むことを抑制し得る。このことにより、パイプ状部材に対して梁部材を確実に固定できるので、溶接によらずにフレーム構造体を組立てることができる。すなわち、フレーム構造体を構成する梁部材とパイプ状部材とを分離した状態で搬送や保管することができ、搬送時の取扱いが容易であると共に、保管スペースを大きく取る必要がなくなる。また、前記梁部材の突出片を前記パイプ状部材に開設した開口部に嵌入するよう構成したから、該梁部材の位置がパイプ状部材に対してずれるのを確実に防止することができる。更に、梁部材は断面形状がコの字状に形成されているので、構造的にゆがみにくく、フレーム構造体として十分な構造強度が得られる。
【図面の簡単な説明】
【図１】本発明の好適な実施例に係る部材接続構造およびフレーム構造体の組立て構造によるフレーム構造体に機器を配設した状態を示す概略斜視図である。
【図２】実施例に係るフレーム構造体の正面図である。
【図３】実施例に係るフレーム構造体の側面図である。
【図４】（ａ）は、実施例に係る横枠材に対して梁部材を固定した状態を示す図２のＡ−Ａ線断面図であり、（ｂ）は横枠材に対して梁部材を固定する前の状態を示す図２のＡ−Ａ線断面図である。
【図５】実施例に係るフレーム構造体を示す図３のＢ−Ｂ線断面図である。
【図６】実施例に係る梁部材と横枠材との固定部分を示す概略斜視図である。
【図７】実施例に係るベース部材と横枠材との固定部分を示す概略斜視図である。
【図８】従来の技術に係る部材接続構造およびフレーム構造体の組立て構造によるフレーム構造体に機器を配設した状態を示す概略斜視図である。
【符号の説明】
１０　機器，１２　フレーム構造体，１４　パイプ状部材，１４ｂ　開口部
１６　梁部材，１６ａ　胴部，２２　第１フック部，２６　第１湾曲部
２８　突出片，３０　係合片，３２　第２フック部，３６　第２湾曲部
４０　締結部材，４１　ボルト，４２　ナット[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a member connecting structure and an assembling structure of a frame structure, and is used, for example, when assembling a pipe-shaped member and a beam member constituting a frame structure in which devices such as an engine pump and an engine generator are provided. The present invention relates to a member connecting structure and an assembling structure of a frame structure.
[0002]
[Prior art]
When transporting or installing these devices in a device such as a pump or a generator using an engine, it is difficult to directly handle the devices because of their shapes and heat generation accompanying the operation. For this reason, as shown in FIG. 8, the apparatus 10 is handled in a state where the device 10 is arranged on a frame structure 12 configured by assembling a pipe-shaped member 14 and a plate-shaped beam member 16. The frame structure 12 protects the device 10 disposed inside, and also functions as a carrier for stably moving the device 10 when the device 10 is moved, for example, during transportation or installation. In addition, by providing a vibration isolating means (not shown) such as a rubber member between the device 10 and the frame structure 12, the vibration accompanying the operation of the device 10 is prevented from being transmitted to the outside, Further, the operation sound of the device 10 can be suppressed.
[0003]
The conventional frame structure 12 is formed by bending a metal pipe or square material into, for example, a rectangular shape, and has a pair of pipe-shaped members 14 erected with their opening surfaces facing each other in parallel. 14 and a required number of beam members 16 which are suspended between horizontal frame members 14a, 14a located on the upper and lower sides of the pipe-shaped members 14, 14 extending horizontally, and which are separated by a predetermined distance. Be composed. At least one beam member 16 disposed on the lower side is set to function as a base member 18 on which the device 10 is placed, and a required number of mounting holes (not shown) for fixing the device 10 are provided. ) Has been established. The beam member 16 and the base member 18 are fixed to the pipe-like member 14 by welding. Thereafter, the frame structure 12 is painted by a predetermined means, the device 10 is placed on the painted base member 18 of the frame structure 12, and bolts or the like are inserted into mounting holes formed in the base member 18. The device 10 is disposed on the frame structure 12 by inserting and fastening the fastening member.
[0004]
As described above, the conventional frame structure 12 is assembled by welding the pipe-shaped member 14 and the beam member 16 and then supplied to the next mounting process of the device 10. Since the assembled frame structure 12 is bulky, handling of the frame structure 12 becomes complicated when the frame structure 12 is transported, and the frame structure 12 cannot be transported in large quantities. Further, since the shape is not a shape that can be superimposed, there is a problem that a large amount of space is required for storing the frame structure 12. Also, in the coating process of the frame structure 12, handling is inconvenient due to the large bulk, and spray coating by spraying has a problem that the loss is large and the coating cost increases.
[0005]
As means for avoiding the above-described problem, there has been proposed a frame structure 12 in which the pipe-shaped member 14 is configured to be able to be divided at a predetermined position and the divided portion is fixed with screws. In this frame structure 12, the connection between the pipe-shaped member 14 and the beam member 16 is assembled by screwing instead of welding (for example, see Patent Document 1).
[0006]
[Patent Document 1]
JP 11-44395 A
[Problems to be solved by the invention]
However, in the frame structure 12 configured to assemble the divided pipe-shaped members 14 with each other or the pipe-shaped member 14 and the beam member 16 with a fastening member such as a screw, the pipes 10 are vibrated by the operation of the installed device 10. There is a disadvantage in that the screws fastening the pipe-shaped members 14 or the pipe-shaped member 14 and the beam member 16 are loosened, and the frame structure 12 is loose, and the device 10 cannot be stably held. Therefore, it is necessary to periodically retighten the screws, which is troublesome.
[0008]
[Object of the invention]
The present invention has been proposed in view of the above-mentioned problems inherent in the member connecting structure and the frame structure assembling structure according to the prior art, and has been proposed to appropriately solve the problem. A frame structure is provided by providing a member connection structure that does not loosen the fastening member due to vibrations of the installed equipment and can maintain the secure fixation of each component member, and also uses this member connection structure. It is an object of the present invention to provide an assembling structure of a frame structure capable of maintaining reliable fixing between a pipe-shaped member and a beam member.
[0009]
[Means for Solving the Problems]
In order to overcome the above problems and achieve a predetermined object, a member connection structure according to the present invention is a member connection structure for connecting a pipe-shaped member and a beam member,
A first hook portion formed at a portion where the beam member abuts on the pipe-shaped member from the outside and curves inward, and has an end portion folded outward in a U-shape;
An attached member that is separate from the beam member, one end of which is formed in a portion that abuts the inside of the pipe-shaped member from the inside and curves outward, and that end is folded back into an inverted U-shape. An engagement piece having a second hook portion that can be fitted to the first hook portion;
An inwardly curved portion of the beam member abuts the pipe-shaped member from the outside, an outwardly curved portion of the engagement piece abuts the pipe-shaped member from the inside, and the beam member In the state where the second hook portion of the engagement piece is fitted to the first hook portion, the beam member and a fastening member for co-fastening the engagement piece are provided.
[0010]
Further, in order to overcome the above problems and achieve a predetermined object, the assembly structure of the frame structure according to the present invention is:
A pair of pipe-shaped members are disposed opposite to each other while maintaining a required interval, and a required number of beam members are laid on the pair of pipe-shaped members and fixed at respective ends of the pipe-shaped members. Mainly in a frame structure in which devices such as an engine generator are disposed,
A first hook portion formed at a portion where the beam member abuts on the pipe-shaped member from the outside and curves inward, and has an end portion folded outward in a U-shape;
An attached member that is separate from the beam member, one end of which is formed in a portion that abuts the inside of the pipe-shaped member from the inside and curves outward, and that end is folded back into an inverted U-shape. An engagement piece having a second hook portion that can be fitted to the first hook portion;
An inwardly curved portion of the beam member abuts the pipe-shaped member from the outside, an outwardly curved portion of the engagement piece abuts the pipe-shaped member from the inside, and the beam member In the state where the second hook portion of the engagement piece is fitted to the first hook portion, the beam member and a fastening member for co-fastening the engagement piece are provided.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, a member connecting structure and an assembling structure of a frame structure according to a preferred embodiment of the present invention will be described below with reference to the accompanying drawings by way of a preferred embodiment. For convenience of explanation, the same elements as those of the frame structure shown in FIG. 8 will be described using the same reference numerals. Further, in the embodiment, a description will be given of a case of assembling a frame structure in which devices such as an engine generator and an engine pump are arranged. However, the present invention is not limited to the frame structure in which the above devices are disposed inside.
[0012]
As shown in FIGS. 1 to 3, a pair of pipe-shaped members 14, 14 and upper and lower horizontal frame members 14 a, which extend horizontally in the standing pipe-shaped members 14, 14 and face each other. The frame structure 12 is composed of a required number of beam members 16 suspended laterally between 14a and engagement pieces 30 for fixing each beam member 16 to the horizontal frame member 14a. The pipe-shaped member 14 is obtained by bending a pipe material into a square shape according to the size of the device 10 disposed inside. Then, as shown in FIG. 4, in the portion of the horizontal frame member 14 a that comes into contact with each beam member 16, the projection member 28 is allowed to fit into a portion of the beam member 16 corresponding to a projection member 28 described later. Openings 14b are respectively opened.
[0013]
As shown in FIG. 5, the beam member 16 is formed of a plate material having a required elasticity, and the cross-sectional shape of the body 16a excluding a portion where the beam member 16 contacts the pipe-shaped member 14 is opened downward. It is formed to have a U-shape. The length of the beam member 16 is such that when the beam member 16 is laid between a pair of facing horizontal frame members 14a, 14a, the device 10 is placed in a space surrounded by the pipe members 14, 14 and the beam member 16. The dimensions are set so that they can be arranged. As shown in FIGS. 4 and 6, at both ends of the beam member 16, a first curved portion 26 that is curved along the upper outer periphery of the horizontal frame member 14 a is formed. The bending radius is set slightly smaller than the radius of the outer circumference of the pipe-shaped member 14. A projecting piece 28 is formed on the lower surface of the first curved portion 26 at a position where it contacts the top of the pipe-shaped member 14 and projects downward. A first hook portion 22 is formed at a portion of the first curved portion 26 facing the outside of the horizontal frame member 14a, and has an end portion bent outward in a U-shape.
[0014]
In the beam member 16, the first curved portion 26 comes into contact with the pipe-shaped member 14 from above, the projecting piece 28 is fitted into the opening 14b of the pipe-shaped member 14, and the first hook portion 22 is connected to the frame structure. It is arranged outside the body 12. At this time, in the beam member 16, the first hook portion 22 and the ends of the side plates 16b, 16b on both sides in the width direction of the body portion 16a of the beam member 16 face each other with the horizontal frame member 14a interposed therebetween. By contact, the movement of the horizontal frame member 14a in and out is restricted. Further, a first insertion hole 24 having a required diameter is formed in a horizontal plane of the body 16a adjacent to the first curved portion 26 of the beam member 16. The connecting portion of the beam member 16 including the first bending portion 26, the protruding piece 28, the first hook portion 22, and the first insertion hole 24 is formed symmetrically at both ends of the beam member 16 and faces each other. The first curved portions 26, 26 are in contact with the pair of horizontal frame members 14a, 14a from above.
[0015]
The engaging piece 30 is an additional member that is separate from the beam member 16 and is made of a plate material having a required elasticity. The width of the engaging piece 30 is greater than the width of the trunk portion 16a of the beam member 16 at the open end thereof. (A width smaller than a separation dimension of both side plate portions 16b, 16b). At one end of the engagement piece 30, a second curved portion 36 bent along the lower outer periphery of the horizontal frame member 14a is formed, and the bent radius of the second curved portion 36 is It is set slightly smaller than the radius of the outer circumference circle of the horizontal frame member 14a. Further, a portion of the second curved portion 36 facing the outside of the horizontal frame member 14a is formed with a second hook portion 32 that is opened downward by folding the end portion thereof inward in an inverted U-shape. ing. Further, a vertical portion 30a is formed at the other end of the engagement piece 30 so as to be bent upward at a right angle. When the second hook portion 32 is fitted to the first hook portion 22 of the beam member 16, the engagement piece 30 comes into contact with the horizontal frame member 14 a from below with the second curved portion 36, and The vertical portion 30a abuts on the horizontal surface of the body 16a of the member 16 and is positioned on the horizontal frame member 14a. A second insertion hole 34 is formed in the engagement piece 30 at a position that can be aligned with the first insertion hole 24 formed in the body 16 a of the beam member 16. , 34, and a nut 42 is screwed into a bolt 41 of a required length constituting a fastening member 40, and the beam member 16 and the engaging piece 30 are fastened together. It is positioned and fixed to the member 14a.
[0016]
At least one beam member 16 bridged between the lower horizontal frame members 14a, 14a is used as a base member 18 on which the device 10 is mounted. As shown in FIG. The body 16a is set wider than the other beam members 16 so that the device 10 can be placed. At both ends of the base member 18, as shown in FIG. 7, a connection portion including the first curved portion 26, the first hook portion 22, the first insertion hole 24, and the projecting piece 28 is separated in the width direction. It is formed at each location, and is positioned on the horizontal frame member 14a by fastening the connection portions and the engagement pieces 30 together with the fastening members 40 as described above. A required number of mounting holes (not shown) for mounting and fixing the device 10 are provided at required positions of the base member 18 on the horizontal surface of the body 16a.
[0017]
Operation of the embodiment
Next, the operation of the assembly structure of the member connection structure and the frame structure according to the embodiment will be described. When assembling the beam member 16 (base member 18) to the horizontal frame member 14a of the pipe-shaped member 14, first, the first curved portion 26 of the beam member 16 is brought into contact from above the horizontal frame member 14a, The projecting piece 28 of the beam member 16 is fitted into the opening 14 b of the pipe-shaped member 14. At this time, the ends of both side plate portions 16b, 16b of the beam member 16, the first curved portion 26, and the first hook portion 22 are in contact with the horizontal frame member 14a, respectively. Next, with the second hook portion 32 of the engagement piece 30 being fitted to the first hook portion 22, the second curved portion 36 of the engagement piece 30 is brought into contact with the horizontal frame member 14a from below. . Thereafter, the axis of the first insertion hole 24 formed in the beam member 16 and the axis of the second insertion hole 34 formed in the engagement piece 30 are aligned, and the bolt 41 is inserted into the first insertion hole. 24 and the second insertion hole 34 are commonly inserted from above the beam member 16, and a nut 42 is screwed into a portion of the bolt 41 protruding from the engagement piece 30 and screwed together. As a result, the beam member 16 is fixed to the horizontal frame member 14a in a state where the horizontal frame member 14a is sandwiched from above and below at a required pressure by the two curved portions 26 and 36 of the beam member 16 and the engagement piece 30. At this time, the vertical portion 30a extending above the engagement piece 30 comes into contact with the horizontal surface of the body portion 16a of the beam member 16 as the nut 42 is tightened, so that the vertical portion 30a moves further. Is regulated.
[0018]
In the fixed state of the beam member 16 with respect to the horizontal frame member 14a, the protruding piece 28 is fitted into the opening 14b of the pipe-shaped member 14 so that the movement in the axial direction is restricted. The horizontal frame member 14a is sandwiched between the end portions of the portions 16b, 16b and the hook portions 22, 32, so that the inward and outward movement is restricted. Accordingly, it is possible to reliably prevent the beam member 16 from being displaced from the fixed position of the pipe-shaped member 14 due to the vibration accompanying the operation of the device 10 disposed on the frame structure 12. Further, since the opening 14 b is provided in advance at the position where the beam member 16 is fixed to the pipe-shaped member 14, the positioning of the beam member 16 is easy when assembling the frame structure 12.
[0019]
The space surrounded by the first curved portion 26 of the beam member 16 and the second curved portion 36 of the engagement piece 30 is set slightly smaller than the outer diameter of the horizontal frame member 14a. For example, when the diameter of the space surrounded by the first curved portion 26 and the second curved portion 36 is set to a size of 21 mm with respect to the pipe diameter of the horizontal frame member 14a of 22 mm, FIG. As shown in the figure, when the horizontal frame members 14a are vertically opposed to each other by the curved portions 26, 36 of the beam member 16 and the engaging pieces 30 and the hook portions 22, 32 are fitted, the vertical portions 30a of the engaging pieces 30 are engaged. Faces a lower position of the body 16a which does not come into contact with a horizontal plane. When the axis of the second insertion hole 34 of the engagement piece 30 is aligned with the axis of the first insertion hole 24 of the beam member 16 and the bolt 41 is commonly inserted from above the beam member 16, An inward tension is applied to the second hook portion 32 of the engagement piece 30. In other words, the second hook portion 32 pulls the first hook portion 22 of the fitted beam member 16, and the first curved portion 26 is pressed against the horizontal frame member 14a. Then, a nut 42 is screwed into the bolt 41 protruding from the engagement piece 30 and fastened together, and further tightened even after the vertical portion 30a comes into contact with the horizontal surface of the body 16a. The piece 30 elastically bends and the second curved portion 36 is pressed against the horizontal frame member 14a. At this time, a tension is applied to the second hook portion 32 to press the first hook portion 22 against the horizontal frame member 14a, so that the curved portions 26 and 36 firmly hold the horizontal frame member 14a in a pinched state. Pinch. Thus, the beam member 16 is firmly fixed to the horizontal frame member 14a by elastically bending the engagement piece 30 so as to apply tension to the hook portions 22 and 32.
[0020]
Since the beam member 16 is formed of a plate material having elasticity, when tension is applied by the separate engagement piece 30 as described above, the first curved portion 26 of the beam member 16 adheres tightly. It comes into contact with the pipe-shaped member 14. However, since the body 16a of the beam member 16 has a U-shaped cross section, it is hardly distorted structurally, and sufficient structural strength as the frame structure 12 can be obtained.
[0021]
A force for releasing the bent state of the engagement piece 30 is constantly applied to the bolt 41 and the nut 42 constituting the fastening member 40 in a direction opposite to the fastening direction. That is, since the state is the same as the state in which the spring washer is interposed, the loosening of the fastening state between the bolt 41 and the nut 42 due to the vibration accompanying the operation of the device 10 arranged in the frame structure 12 is suppressed. can do. Therefore, it is possible to omit the periodical tightening work of the nut 42 or to lengthen the period, thereby saving labor.
[0022]
【The invention's effect】
As described above, according to the assembly structure of the member connection structure and the frame structure according to the present invention, the engagement piece separate from the beam member bends like a spring member, so that the beam is connected via both hook portions. The first curved portion of the member is pressed against the pipe-shaped member, and the second curved portion of the engaging piece is pressed against the pipe-shaped member, and the two curved portions firmly clamp the pipe-shaped member for fixing. Can be. In addition, a pressing force is applied to the fastening member that jointly fastens the beam member and the engagement piece as if a spring washer was interposed due to the repulsive force of the engagement piece, so that the fastening member was vibrated by the vibration of the device disposed inside. Looseness of the fastening state of the member can be suppressed. Thus, the beam member can be securely fixed to the pipe-shaped member, so that the frame structure can be assembled without welding. That is, the beam member and the pipe-shaped member constituting the frame structure can be transported and stored in a separated state, so that handling during transport is easy, and it is not necessary to take a large storage space. Further, since the projecting piece of the beam member is configured to fit into the opening formed in the pipe-shaped member, it is possible to reliably prevent the position of the beam member from being shifted from the pipe-shaped member. Furthermore, since the cross section of the beam member is formed in a U-shape, the beam member is hardly distorted structurally, and sufficient structural strength is obtained as a frame structure.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing a state in which devices are arranged on a frame structure by an assembly structure of a member connection structure and a frame structure according to a preferred embodiment of the present invention.
FIG. 2 is a front view of the frame structure according to the embodiment.
FIG. 3 is a side view of the frame structure according to the embodiment.
FIG. 4A is a cross-sectional view taken along line AA of FIG. 2 showing a state in which a beam member is fixed to a horizontal frame member according to an embodiment, and FIG. FIG. 3 is a sectional view taken along line AA of FIG. 2 showing a state before a member is fixed.
FIG. 5 is a sectional view taken along line BB of FIG. 3 showing the frame structure according to the embodiment.
FIG. 6 is a schematic perspective view showing a fixed portion between the beam member and the horizontal frame member according to the embodiment.
FIG. 7 is a schematic perspective view showing a fixed portion between the base member and the horizontal frame member according to the embodiment.
FIG. 8 is a schematic perspective view showing a state in which devices are arranged on a frame structure by an assembly structure of a member connection structure and a frame structure according to a conventional technique.
[Explanation of symbols]
Reference Signs List 10 device, 12 frame structure, 14 pipe-shaped member, 14b opening 16 beam member, 16a trunk, 22 first hook portion, 26 first curved portion 28 projecting piece, 30 engagement piece, 32 second hook portion, 36 second bending portion 40 fastening member, 41 bolt, 42 nut

Claims

In a member connection structure for connecting a pipe-shaped member (14) and a beam member (16),
The first hook portion (16) is formed at a portion where the beam member (16) abuts against the pipe-shaped member (14) from the outside and curves inward, and has an end portion folded outward in a U-shape. 22)
An auxiliary member separate from the beam member (16), one end of which is formed at a portion that abuts the pipe-shaped member (14) from the inside and curves outward, and the end is an inverted U-shape. An engagement piece (30) having a second hook part (32) that can be fitted to the first hook part (22) by being folded in a shape;
The inwardly curved portion (26) of the beam member (16) is brought into contact with the pipe-shaped member (14) from the outside, and the outwardly curved portion (36) of the engagement piece (30) is removed. The second hook portion (32) of the engagement piece (30) was fitted to the pipe-shaped member (14) from the inside, and the first hook portion (22) of the beam member (16) was fitted. A member connection structure comprising the beam member (16) and a fastening member (40) for co-fastening the engagement piece (30) in the state.

A projecting piece (28) protruding from a portion of the beam member (16) that comes into contact with the pipe-shaped member (14) and a portion corresponding to the projecting piece (28) of the pipe-shaped member (14). And an opening (14b) for allowing the projecting piece (28) to be fitted therein, and when the inner curved portion (26) of the beam member (16) is brought into contact with the pipe-shaped member (14), the projecting portion is formed. The member connection structure according to claim 1, wherein a piece (28) fits into the opening (14b) to prevent a positional displacement between the beam member (16) and the pipe-shaped member (14).

The member connecting structure according to claim 1, wherein the fastening member (40) comprises a combination of a bolt (41) and a nut (42) having a required length.

The member connection structure according to claim 1, wherein the body (16a) of the beam member (16) is formed to have a U-shaped cross section.

A pair of pipe-shaped members (14, 14) opposed to each other while maintaining a required interval, and a pair of pipe-shaped members (14, 14) being laid on the pair of pipe-shaped members (14, 14). In a frame structure (12) comprising a required number of beam members (16), each of which is fixed at an end, and mainly provided with a device (10) such as an engine generator,
The first hook portion (16) is formed at a portion where the beam member (16) abuts against the pipe-shaped member (14) from the outside and curves inward, and has an end portion folded outward in a U-shape. 22)
An auxiliary member separate from the beam member (16), one end of which is formed at a portion that abuts the pipe-shaped member (14) from the inside and curves outward, and the end is an inverted U-shape. An engagement piece (30) having a second hook part (32) that can be fitted to the first hook part (22) by being folded in a shape;
The inwardly curved portion (26) of the beam member (16) is brought into contact with the pipe-shaped member (14) from the outside, and the outwardly curved portion (36) of the engagement piece (30) is removed. The second hook portion (32) of the engagement piece (30) was fitted to the pipe-shaped member (14) from the inside, and the first hook portion (22) of the beam member (16) was fitted. An assembly structure for a frame structure, comprising a beam member (16) and a fastening member (40) for co-fastening an engagement piece (30) in a state.

A projecting piece (28) protruding from a portion of the beam member (16) that comes into contact with the pipe-shaped member (14) and a portion corresponding to the projecting piece (28) of the pipe-shaped member (14). And an opening (14b) for allowing the projecting piece (28) to be fitted therein, and when the inner curved portion (26) of the beam member (16) is brought into contact with the pipe-shaped member (14), the projecting portion is formed. 6. A frame structure according to claim 5, wherein a piece (28) fits into said opening (14b) to prevent displacement of said beam member (16) and said pipe-shaped member (14). Assembly structure.

The assembly structure for a frame structure according to claim 5, wherein the fastening member (40) comprises a combination of a bolt (41) and a nut (42) having a required length.

The assembly structure for a frame structure according to claim 5, wherein the body (16a) of the beam member (16) is formed to have a U-shaped cross section.