JP2004308874A

JP2004308874A - Makeup duct for piping or wiring and fitting used for it

Info

Publication number: JP2004308874A
Application number: JP2003106490A
Authority: JP
Inventors: Koji Takenaga; 宏二竹永
Original assignee: Inaba Denki Sangyo Co Ltd
Current assignee: Inaba Denki Sangyo Co Ltd
Priority date: 2003-04-10
Filing date: 2003-04-10
Publication date: 2004-11-04
Anticipated expiration: 2023-04-10
Also published as: JP4286046B2

Abstract

<P>PROBLEM TO BE SOLVED: To enable the free change of a duct main body to a folding attitude which is useful with respect to control, transportation, and handling; to enable the prevention of a duct whole length from being increased when folding; and to obtain mechanical strength advantageously when stretching the duct main body to a normal duct shape with respect to structure, costs, etc. <P>SOLUTION: Right and left duct side plates 1 forming the duct main body D are composed to freely change into standing-up attitude and lying attitude on a connection member 2 by fluctuation along a shaft center X in the duct longitudinal direction with respect to the connection member 2 for connecting the lower ends. When the duct side plates are changed from lying attitude to standing-up attitude, an attitude maintaining means B for maintaining the duct side plates 1 in the standing-up attitude is provided. When changing from the lying attitude into the standing-up attitude, a play regulating means C which contacts or approaches a part of the connection member 2 outside surface is provided at the duct side plates 1 side. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、空調用配管や電気ケーブル等を配設する場合に用いられる化粧ダクトで、詳しくは、左右一対のダクト側板とそれの下端部同士を連結する連結部材とを備えたダクト本体に、それの上部開口を覆う天蓋が脱着自在に装着されている配管用又は配線用化粧ダクト及びそれに用いられる取付け具に関する。
【０００２】
【従来の技術】
従来の配管用又は配線用化粧ダクトの場合では、ダクト側板の内側面とそれに直角に当て付けられたＣ形チャンネル状の連結部材の両側板部とで形成される二つの入隅部のうち、一方の入隅部を構成するダクト側板の内側面と連結部材の一方の側板部とに亘って、ヒンジ軸芯が上下方向となるヒンジを取付けて、両ダクト側板と連結部材とを、各ヒンジ軸芯周りでの揺動操作によって重合する姿勢に折畳み自在に構成していた。（例えば、特許文献１参照。）。
【０００３】
【特許文献１】
特開平７−７１６８８号公報（第２−３頁、図２、図３）
【０００４】
【発明が解決しようとする課題】
従来の配管用又は配線用化粧ダクトでは、ダクト本体を構成する両ダクト側板と複数の連結部材とを重合姿勢に折畳むことができるから、折畳まれた多数のダクト本体を積み重ね状態で効率良く保管することができるばかりでなく、その折畳まれたままの状態で施工現場に搬入することができるので、運搬コストの低廉化と取り扱いの容易化を図ることができる利点がある。
【０００５】
しかしながら、ダクト側板の内側面とそれに直角に当て付けられた連結部材の両側板部とで形成される二つの入隅部のうち、一方の入隅部を構成するダクト側板の内側面と連結部材の一方の側板部とに亘ってヒンジを取付けることになるため、ダクト本体を正規のダクト形状に伸展したときの機械的強度が低下し易く、しかも、連結部材の上下方向に沿うヒンジ軸芯周りでの揺動代が両ダクト側板のダクト長手方向での位置ずれとして現れるため、折畳み姿勢での全長が正規のダクト形状に伸展したときよりも大きくなる。
【０００６】
また、ダクト本体を正規のダクト形状に伸展させたときの機械的強度を高めるためには、各連結部材の端部に、伸展時にダクト側板の内側面に接当する補強板を固着するとともに、この補強板と起立姿勢にあるダクト側板とをビス等で固定連結する必要があり、ダクトの重量化と製造コストの高騰化を招来するばかりでなく、伸展操作後における組付け作業工程数が増加する問題がある。
【０００７】
本発明は、上述の実状に鑑みて為されたものであって、その主たる課題は、ダクト本体を構成する両ダクト側板と連結部材との折畳み方向を合理的に改造することにより、ダクト本体を管理面及び運搬面、取り扱い面で有利な折畳み姿勢に自由に切換えることができるようにしながらも、折畳み時におけるダクト全長の増大を防止するとともに、ダクト本体を正規のダクト形状に伸展させたときの機械的強度も構造面、コスト面等で有利に確保することのできる配管用又は配線用化粧ダクト及び化粧ダクト用取付け具を提供する点にある。
【０００８】
【課題を解決するための手段】
本発明の請求項１による特徴構成は、左右一対のダクト側板とそれの下側部同士を連結する連結部材とを備えたダクト本体に、それの上部開口を覆う天蓋が脱着自在に装着されている配管用又は配線用化粧ダクトであって、
各ダクト側板が、連結部材に対するダクト長手方向に沿う軸芯周りでの起伏揺動により、起立姿勢と連結部材上に倒伏させた姿勢とに切換え自在に構成されているとともに、倒伏姿勢にあるダクト側板が起立姿勢に切換えられたとき、該ダクト側板を起立姿勢に維持する姿勢維持手段が設けられ、更に、ダクト側板側には、ダクト側板が倒伏姿勢から起伏姿勢に切換えられたとき、連結部材の外側面の一部に接触又は近接する遊び規制手段が設けられている点にある。
【０００９】
上記特徴構成によれば、ダクト本体の両ダクト側板をダクト長手方向に沿う軸芯周りで連結部材上に倒伏させた姿勢に切換えることにより、ダクト本体を嵩低くコンパクトに折畳むことができるばかりでなく、折畳まれたダクト本体の両ダクト側板上に他のダクト本体の連結部材を安定良く積み重ねることができる。
【００１０】
また、倒伏姿勢にある各ダクト側板が起立姿勢に切換え操作されたときには、姿勢維持手段によって各ダクト側板を起立姿勢に維持することができるから、ダクト本体の伸展操作後に各ダクト側板を起立姿勢に維持するための特別な操作が不要になるとともに、連結部材に対する両ダクト側板の揺動軸芯がダクト長手方向に沿う軸芯に構成されているので、折畳み時と伸展時におけるダクト本体の全長が同一になり、例え、ダクト側板と連結部材との枢支連結幅がダクト長手方向で幅を有するものであっても、連結部材に対する各ダクト側板の姿勢切換えのための揺動操作に支障を与えることはない。
【００１１】
しかも、両ダクト側板と連結部材との枢支連結箇所に隙間（クリアランス）が発生していても、ダクト側板が倒伏姿勢から起伏姿勢に切換えられたとき、ダクト側板側に設けた遊び規制手段が連結部材の外側面の一部に接触又は近接して、枢支連結部での隙間に起因する両ダクト側板と連結部材とのガタツキを抑制することができる。
【００１２】
従って、ダクト本体を構成する両ダクト側板と連結部材との折畳み方向を上述の如く工夫することにより、ダクト本体を管理面及び運搬面、取り扱い面で有利な折畳み姿勢に自由に切換えることができるようにしながらも、折畳み時におけるダクト全長の増大化を防止して、包装資材の減容化と廃棄物の低減化を促進することができるとともに、ダクト本体を正規のダクト形状に伸展させたときのガタツキを抑制することができる。しかも、正規のダクト形状に伸展させたときの機械的強度も、ダクトの重量化や製造コストの高騰化或いは伸展操作後の作業工程数の増加を抑えつつ容易に確保することができる。
【００１３】
本発明の請求項２による特徴構成は、左右一対のダクト側板とそれの下側部同士を連結する連結部材とを備えたダクト本体に、それの上部開口を覆う天蓋が脱着自在に装着されている配管用又は配線用化粧ダクトであって、
ダクト側板の下側部に設けられたブラケットと連結部材の端部側に設けられたアームとが、連結部材の上面よりも上方に偏位した部位においてダクト長手方向に沿う軸芯周りで揺動自在に枢支連結されているとともに、倒伏姿勢にあるダクト側板が起立姿勢に切換えられたとき、該ダクト側板を起立姿勢に維持する姿勢維持手段が設けられ、更に、ブラケットには、ダクト側板が倒伏姿勢から起伏姿勢に切換えられたとき、連結部材の外側面の一部に接触又は近接する遊び規制手段が設けられている点にある。
【００１４】
上記特徴構成によれば、ダクト側板の下側部に設けられたブラケットと連結部材の端部側に設けられたアームとを、ダクト長手方向に沿う軸芯周りで倒伏姿勢に切換えることにより、ダクト本体を嵩低くコンパクトに折畳むことができるばかりでなく、折畳まれたダクト本体の両ダクト側板上に他のダクト本体の連結部材を安定良く積み重ねることができる。
【００１５】
また、倒伏姿勢にある各ダクト側板が起立姿勢に切換え操作されたときには、姿勢維持手段によって各ダクト側板を起立姿勢に維持することができるから、ダクト本体の伸展操作後に各ダクト側板を起立姿勢に維持するための特別な操作が不要になるとともに、連結部材のアームに対する各ダクト側板のブラケットの揺動軸芯がダクト長手方向に沿う軸芯に構成されているので、折畳み時と伸展時におけるダクト本体の全長が同一になり、例え、ダクト側板と連結部材との枢支連結幅がダクト長手方向で幅を有するものであっても、連結部材に対する各ダクト側板の姿勢切換えのための揺動操作に支障を与えることはない。
【００１６】
しかも、両ダクト側板と連結部材との枢支連結箇所に隙間（クリアランス）が発生していても、ダクト側板を倒伏姿勢から起伏姿勢に切換えたとき、ブラケットに設けられた遊び規制手段が連結部材の外側面の一部に接触又は近接して、枢支連結部での隙間に起因するダクト側板と連結部材とのガタツキを抑制することができるとともに、各ダクト側板が連結部材の上面に接当する倒伏姿勢に切換えられたとき、倒伏姿勢にある両ダクト側板の外側面が水平に近くなる。
【００１７】
従って、ダクト本体を構成する両ダクト側板と連結部材との折畳み方向を上述の如く工夫することにより、ダクト本体を管理面及び運搬面、取り扱い面で有利な折畳み姿勢に自由に切換えることができるようにしながらも、折畳み時におけるダクト全長の増大化を防止して、包装資材の減容化と廃棄物の低減化を促進することができる。しかも、ダクト本体を正規のダクト形状に伸展させたときのガタツキを抑制することができるとともに、正規のダクト形状に伸展させたときの機械的強度も、ダクトの重量化や製造コストの高騰化或いは伸展操作後の作業工程数の増加を抑えつつ容易に確保することができ、その上、折畳まれたダクト本体の多段積みの容易化をも図ることができる。
【００１８】
本発明の請求項３による配管用又は配線用化粧ダクトの特徴構成は、前記遊び規制手段が、連結部材の側板部の上端に折り曲げ形成されたフランジ部の外側面に接触又は近接する第１規制片と、連結部材の側板部の外側面に接触又は近接する第２規制片とから構成されている点にある。
【００１９】
上記特徴構成によれば、ダクト側板が倒伏姿勢から起伏姿勢に切換えられたとき、ダクト側板側に設けられた遊び規制手段の第１規制片が、連結部材のフランジ部の外側面に接触又は近接することにより、枢支連結部での隙間に起因するダクト側板と連結部材との上下方向でのガタツキを抑制することができ、更に、遊び規制手段の第２規制片が、連結部材の側板部の外側面に接触又は近接することにより、枢支連結部での隙間に起因するダクト側板と連結部材とのダクト長手方向でのガタツキを抑制することができる。
【００２０】
従って、遊び規制手段の第１・第２規制片により、ダクト本体を正規のダクト形状に伸展させたときのガタツキや捩れを効果的に抑制することができる。
【００２１】
本発明の請求項４による配管用又は配線用化粧ダクトの特徴構成は、前記第２規制片のダクト幅方向中央側の側辺部が、その先端ほど連結部材の側板部の外側面から離間する傾斜姿勢又は湾曲姿勢に形成されている点にある。
【００２２】
上記特徴構成によれば、ダクト側板を倒伏姿勢から起伏姿勢に切換える際、その切換え操作の前半側において、ダクト側板と連結部材との枢支連結箇所に発生している隙間（クリアランス）に起因するガタツキによって、第２規制片のダクト幅方向中央側の側辺部が連結部材の側板部の上端部側に接触しても、傾斜姿勢又は湾曲姿勢に形成された第２規制片の側辺部によるガイド作用により、両者の食い込みを回避することができる。
【００２３】
本発明の請求項５による配管用又は配線用化粧ダクトの特徴構成は、前記第１規制片のダクト幅方向中央側の側辺部が、その先端ほど連結部材のフランジ部の外側面から離間する傾斜姿勢又は湾曲姿勢に形成されている点にある。
【００２４】
上記特徴構成によれば、ダクト側板を倒伏姿勢から起伏姿勢に切換える際、その切換え操作の前半側において、ダクト側板と連結部材との枢支連結箇所に発生している隙間（クリアランス）に起因するガタツキによって、第１規制片のダクト幅方向中央側の側辺部が連結部材のフランジ部に接触しても、傾斜姿勢又は湾曲姿勢に形成された第１規制片の側辺部によるガイド作用により、両者の食い込みを回避することができる。
【００２５】
本発明の請求項６による配管用又は配線用化粧ダクトの特徴構成は、前記ダクト側板のブラケットが、連結部材の両フランジ部の相対向側辺に接触又は近接する状態で該連結部材の端部に対してダクト幅方向から差し込み連結自在に構成されているとともに、ブラケットに揺動自在に枢着されたアームが、連結部材の底板部に回動不能に当て付けられた状態で連結部材の両側板部にダクト長手方向に沿う取付け軸により取付けられている点にある。
【００２６】
上記特徴構成によれば、左右一対のダクト側板とそれの下側部同士を連結する連結部材とからなるダクト本体を組付ける場合、ダクト側板に取付けられたブラケットに、アームをダクト長手方向に沿う軸芯周りで起伏揺動自在に組付ける、又は、アームを起伏揺動自在に組付けてあるブラケットをダクト側板に取付けたのち、ダクト側板のブラケットを、連結部材の端部に対してダクト幅方向から差し込み連結して、連結部材の両側板部とアームとを取付け軸で組み付けるだけで済むから、組付け作業の能率化を図ることができる。
【００２７】
しかも、組付け状態では、アームが連結部材の底板部に回動不能に当て付けられた状態で連結部材の両側板部に軸止めされているから、アームを連結部材に対してガタッキのない状態で強固に取付けることができるとともに、ダクト側板のブラケットが、連結部材の両フランジ部の相対向側辺に接触又は近接するから、遊び規制手段との協働により、枢支連結部での隙間に起因するダクト側板と連結部材とのダクト長手方向でのガタツキを一層良好に抑制することができる。
【００２８】
本発明の請求項７による配管用又は配線用化粧ダクトの特徴構成は、前記姿勢維持手段が、起立姿勢にあるダクト側板の下端部と連結部材の底板部との相対向する部位に係脱自在に形成された係合凸部と係合凹部とから構成されていて、倒伏姿勢にあるダクト側板が起立姿勢に切換えられたとき、係合凹部の周縁を乗り越えながら係合凸部と係合凹部とが係合するように構成されている点にある。
【００２９】
上記特徴構成によれば、起立姿勢にあるダクト側板の下端部と連結部材の底板部との相対向する部位に係合凸部と係合凹部とを形成するだけであり、かつ、倒伏姿勢にあるダクト側板の起立姿勢への切換え操作を利用するから、ダクト側板を起立姿勢に維持するための姿勢維持手段を構造面、製造コスト面及び外観意匠面で有利に構成することができる。
【００３０】
本発明の請求項８による配管用又は配線用化粧ダクトの特徴構成は、前記姿勢維持手段が、起立姿勢にあるダクト側板のブラケットと連結部材のアームとの相対向する部位に、係合凹部と、これに対して揺動半径方向から係脱自在な可動係合体とを設けるとともに、倒伏姿勢にあるダクト側板が起立姿勢に切換えられたとき、可動係合体が係合凹部に係入するように移動付勢する付勢手段を設けて構成されている点にある。
【００３１】
上記特徴構成によれば、倒伏姿勢にあるダクト側板が起立姿勢に切換えられたとき、起立姿勢にあるダクト側板のブラケットと連結部材のアームとの相対向する部位に設けられた係合凹部と可動係合体とが付勢手段の移動付勢力で係合し、起立姿勢に切換えられたダクト側板の倒伏揺動を確実に阻止することができる。
【００３２】
本発明の請求項９による特徴構成は、左右一対のダクト側板とそれの下側部同士を連結する連結部材とを備えたダクト本体のうち、ダクト側板の下側部を連結部材の端部に対して起伏揺動自在に枢支連結する取付け具であって、
ダクト側板の下側部に取付けられるブラケットと連結部材の端部側に取付けられるアームとが、連結部材の上面よりも上方に偏位した部位においてダクト長手方向に沿う軸芯周りで揺動自在に枢支連結されているとともに、ブラケットとアームとの相対向する部位には、倒伏姿勢にあるダクト側板が起立姿勢に切換えられたとき、該ダクト側板を起立姿勢に維持する姿勢維持手段が設けられ、更に、ブラケットには、ダクト側板が倒伏姿勢から起伏姿勢に切換えられたとき、連結部材の外側面の一部に接触又は近接する遊び規制手段が設けられている点にある。
【００３３】
上記特徴構成によれば、ダクト側板の下側部に取付けられたブラケットと連結部材の端部側に取付けられたアームとを、ダクト長手方向に沿う軸芯周りで倒伏姿勢に切換えることにより、ダクト本体を嵩低くコンパクトに折畳むことができるばかりでなく、折畳まれたダクト本体の両ダクト側板上に他のダクト本体の連結部材を安定良く積み重ねることができる。
【００３４】
また、倒伏姿勢にある各ダクト側板が起立姿勢に切換え操作されたときには、ブラケットとアームとの相対向する部位に設けた姿勢維持手段によって各ダクト側板を起立姿勢に維持することができるから、ダクト本体の伸展操作後に各ダクト側板を起立姿勢に維持するための特別な操作が不要になるとともに、アームに対するブラケットの揺動軸芯がダクト長手方向に沿う軸芯に構成されているので、折畳み時と伸展時におけるダクト本体の全長が同一になり、例え、ダクト側板と連結部材との枢支連結構造がダクト長手方向で幅を有するものであっても、連結部材に対するダクト側板の姿勢切換えのための揺動操作に支障を与えることはない。
【００３５】
しかも、ブラケットとアームとの枢支連結部に隙間（クリアランス）が発生していても、ダクト側板を倒伏姿勢から起伏姿勢に切換えたとき、ブラケットに設けられた遊び規制手段が連結部材の外側面の一部に接触又は近接して、枢支連結部での隙間に起因するダクト側板と連結部材とのガタツキを抑制することができるとともに、各ダクト側板が連結部材の上面に接当する倒伏姿勢に切換えられたとき、倒伏姿勢にある両ダクト側板の外側面が水平に近くなる。
【００３６】
従って、ダクト本体を管理面及び運搬面、取り扱い面で有利な折畳み姿勢に自由に切換えることができるようにしながらも、折畳み時におけるダクト全長の増大化を防止して、包装資材の減容化と廃棄物の低減化を促進することができる。しかも、ダクト本体を正規のダクト形状に伸展させたときのガタツキを抑制することができるとともに、正規のダクト形状に伸展させたときの機械的強度も、ダクトの重量化や製造コストの高騰化或いは伸展操作後の作業工程数の増加を抑えつつ容易に確保することができ、その上、折畳まれたダクト本体の多段積みの容易化をも図ることができる。
【００３７】
【発明の実施の形態】
〔第１実施形態〕
図１〜図１２は、複数の空調用配管や電気ケーブル等を集合状態で配設する場合に用いられる化粧ダクトを示し、ダクト幅方向で相対向する左右一対の板金製のダクト側板（親桁）１と、ダクト長手方向で適当間隔ごとに配置して両ダクト側板１の下側部同士を連結する複数本（当該実施形態では二本）の金属製の連結部材（子桁）２とを備えたダクト本体Ｄに、それの上部開口を覆う板金製の天蓋３が脱着自在に装着されているとともに、ダクト側板１の下側部を連結部材２の端部に対して起伏揺動自在に枢支連結する取付け具Ａが設けられていて、各ダクト側板１は、連結部材２の端部に対してダクト長手方向に沿う水平軸芯Ｘ周りでの起伏揺動により、連結部材２に対して直交する起立姿勢と連結部材２上に倒伏させた姿勢とに切換え自在に構成されている。
【００３８】
前記取付け具Ａは、ダクト側板１の下側部に取付けられる金属製のブラケット６と、連結部材２の端部側に取付けられる金属製のアーム４とを主要構成として備えており、ブラケット６とアーム４とは、連結部材２の上面よりも上方に偏位した部位においてダクト長手方向に沿う水平軸芯Ｘ周りで揺動自在に枢支連結されているとともに、ブラケット６とアーム４との相対向する部位には、倒伏姿勢にあるダクト側板１が起立姿勢に切換えられたとき、該ダクト側板１を起立姿勢に維持する姿勢維持手段Ｂが設けられ、更に、ダクト側板１側であるブラケット６には、ダクト側板１が倒伏姿勢から起伏姿勢に切換えられたとき、連結部材２の外側面の一部に接触又は近接することにより、枢支連結部での隙間（クリアランス）に起因するダクト側板１と連結部材２とのガタツキ（遊び）を抑制する遊び規制手段Ｃが設けられている。
【００３９】
前記各ダクト側板１の中央側板部１Ａの下側部には、略４５度の角度でダクト幅方向内方下方に向かって延びる下部傾斜辺部１ａと、その下部傾斜辺部１ａの先端からダクト幅方向内方に向かって水平に延出される下部折曲げ縁部１ｂとが連続形成されており、下部折曲げ縁部１ｂには、金属製の底板や隣接するダクト本体Ｄの端部どうしを固定連結するための金属製の継手部材等に対する複数の取付け孔１ｃが貫通形成されている。
【００４０】
また、各ダクト側板１の中央側板部１Ａの上端部には、略４５度の角度でダクト幅方向内方上方に向かって延びる上部傾斜辺部１ｄと、その上部傾斜辺部１ｄの先端からダクト幅方向内方に向かって水平に延出される上部折曲げ縁部１ｅとが連続形成されており、上部折曲げ縁部１ｅには、天蓋３をビス９で脱着自在に締付け固定するためのナット（図示せず）が固着されているとともに、両ダクト側板１の上部折曲げ縁部１ｅに亘って横架される金属製の補強板１４の係止部１４ａに対する係止孔１ｆ、及び、ダクト継手部材に対する複数の取付け孔１ｇが形成されている。
【００４１】
前記天蓋３の左右両側縁部には、両ダクト側板１の上部折曲げ縁部１ｅに沿って載置支持される水平辺部３ａと、上部傾斜辺部１ｄに沿って当て付けられる傾斜折曲げ縁部３ｂとが連続形成されていて、両ダクト側板１の上端部に対して嵌合状態で安定的に載置装着できるように構成されている。
【００４２】
前記連結部材２は、横断面形状がＣ形チャンネル状となるように、それの幅方向（ダクト長手方向）の四箇所において長手方向（ダクト幅方向）に沿って折り曲げ形成されていて、左右一対のダクト側板１の下部折曲げ縁部１ｂに亘って載架可能な長さを備えた底板部２ａと、幅方向で相対向する一対の側板部２ｂと、それの上端から幅方向内方側の斜め下方に向かって延出される一対のフランジ部２ｃから構成されている。
【００４３】
また、前記連結部材２の両側板部２ｂにおける長手方向両端面２ｄの各々は、両ダクト側板１の下部折曲げ縁部１ｂに亘って載架させた状態で下部傾斜辺部１ａに接当可能な傾斜面に構成されている。
【００４４】
前記アーム４は、連結部材２の両フランジ部２ｃの相対向側辺間を通して上方に突出するダクト長手方向視略逆Ｌの字状の一対の側板部４ａと、それの屈曲箇所に亘って連設される繋ぎ板部４ｂとを、コの字状に折曲げ形成して構成されているとともに、それの下端面４ｃを連結部材２の底板部２ａに当て付けた回動不能な状態で、連結部材２の両側板部２ｂの端部に対してダクト長手方向に沿う一本の取付け軸５により脱着自在に固設されている。
【００４５】
前記取付け軸５は、連結部材２の両側板部２ｂに貫通形成された取付け孔２ｅ及びアーム４の両側板部４ａに貫通形成された第１取付け孔４ｄに対して一側方から抜き差し自在に挿入される頭部５ａ付き枢支ピンから構成されていて、その枢支軸部５ｂの先端側には、ベーターピン等の抜止めピン７を装着するための装着孔５ｃが貫通形成されている。
【００４６】
前記ブラケット６は、ダクト長手方向で相対向する一対の側板部６ａと、それの底辺に亘って連設される繋ぎ板部６ｂとを、ダクト幅方向視において上向きコの字状に折り曲げ形成するとともに、各側板部６ａには、ダクト側板１の中央側板部１Ａにリベット８でカシメ固定される一対の当て板部６ｃを直角に折り曲げ形成して構成されている。
【００４７】
更に、図１２に示すように、ブラケット６の両側板部６ａにおけるダクト方向での外面間隔Ｗ１が、両フランジ部２ｃの対向側辺間隔Ｗ２よりも僅かに小に構成されていて、連結部材２の両フランジ部２ｃの相対向側辺に接触又は近接する状態で該連結部材２の端部に対してダクト幅方向から抜き差し自在に差し込み連結されるように構成されているとともに、ブラケット６の両側板部６ａにおける上半側周縁部分には、互いに相手側に向かって突出するフランジ部６ｄが折り曲げ形成され、両フランジ部６ｄの相対向側辺間隔Ｗ３が、アーム４の両側板部４ａにおけるダクト長手方向での外面間隔Ｗ４よりも僅かに大に構成されている。
【００４８】
また、ブラケット６の両側板部６ａの揺動軸芯相当箇所に取付け孔６ｅを貫通形成するとともに、アーム４の両側板部４ａの揺動軸芯相当箇所に第２取付け孔４ｅを貫通形成して、これら取付け孔６ｅ，４ｅに亘って挿通される一本の取付け軸１０により、ブラケット６の両側板部６ａとアーム４の両側板部４ａとが、連結部材２の上面よりも上方に変位した位置においてダクト長手方向に沿う軸芯Ｘ周りで揺動自在に枢支連結されている。
【００４９】
前記取付け軸１０は、ブラケット６の両側板部６ａに形成された取付け孔６ｅ、及び、アーム４の両側板部４ａに形成された取付け孔４ｅに対して一側方から抜き差し自在に挿入される頭部１０ａ付き枢支ピンから構成されていて、その枢支軸部１０ｂの先端側には、ベーターピン等の抜止めピン７を装着するための装着孔１０ｃが貫通形成されている。
【００５０】
そして、両ダクト側板１は、図１、図９に示すように、枢支ピン１０の軸芯Ｘ周りでの揺動操作により、連結部材２の上面に対して直交又は略直交する起立姿勢と、図８、図１０（イ）に示すように、上部折曲げ縁部１ｅの先端が連結部材２の上面に接当する倒伏姿勢とに切換え自在に構成されているとともに、両ダクト側板１が倒伏姿勢にある状態では、ダクト側板１における中央側板部１Ａの外側面が水平姿勢にあることが望ましいが、当該実施形態では、それの上部折曲げ縁部１ｅ側ほど若干高くなる緩傾斜姿勢に構成されている。
【００５１】
しかし、倒伏姿勢にある両ダクト側板１の中央側板部１Ａが緩傾斜姿勢に構成されていても、ダクト本体Ｄを多段積みしたとき、下層側に位置するダクト本体Ｄの両ダクト側板１に亘って、上層側に位置するダクト本体Ｄの連結部材２が左右方向で二点支持されるため、ダクト本体Ｄの多段積みに支障を与えることはない。
【００５２】
次に、前記姿勢維持手段Ｂについて説明する。
図３〜図６に示すように、連結部材２の底板部２ａの端部における幅方向中央位置には、円錐台状又は部分球状に先細りながら貫通する第１係合凹部１５が下面側から打ち出し形成され、これの幅方向両側脇に位置するコーナー部には、矩形状に貫通する第２係合凹部１６が打ち抜き形成されているとともに、ダクト側板１の下部折曲げ縁部１ｂには、第１係合凹部１５に対して枢支ピン１０周りの揺動方向から係脱自在な円錐台状又は部分球状の第１係合凸部１７と、各第２係合凹部１６に対して枢支ピン１０周りの揺動方向から係脱自在な逆Ｖ字状の第２係合凸部１８が打ち出し形成されている。
【００５３】
また、第１係合凸部１７の先端移動軌跡と第１係合凹部１５の係入側周縁、及び、第２係合凸部１８の先端移動軌跡と第２係合凹部１６の係入側周縁とが、ダクト側板１の弾性撓み変形で通過可能な若干の重なり代で交差するように構成されていて、倒伏姿勢にある各ダクト側板１が起立姿勢に切換えられたとき、第１係合凹部１５の係入側周縁及び第２係合凹部１６の係入側周縁を乗り越えながら、第１係合凸部１７と第１係合凹部１５及び第２係合凸部１８と第２係合凹部１６とが係合するように構成されている
【００５４】
更に、ブラケット６の両側板部６ａの外周縁のうち、フランジ部６ｄの先端に連続する部位に、枢支ピン１０の揺動軸芯Ｘを通る半径方向外方に向かって開口する第３係合凹部１９が形成されているとともに、アーム４の両側板部４ａのうち、ダクト側板１が起立姿勢にあるときブラケット６の第３係合凹部１９に相対向する部位には、第３係合凹部１９に対して径方向外方から係合可能なピン状又は軸状の可動係合体２０の両端側を径方向に沿って係脱移動自在に両持ち状態で支持する長孔状の支持孔２１が貫通形成され、更に、揺動軸芯Ｘを構成する枢支ピン１０と可動係合体２０とに亘って、倒伏姿勢にあるダクト側板１が起立姿勢に切換えられたとき、可動係合体２０を第３係合凹部１９に係入するように移動付勢する付勢手段の一例である引張コイルスプリング２２が張設されている。
【００５５】
また、ブラケット６の両フランジ部６ｄのうち、第３係合凹部１９を起点とする略９０度の揺動範囲に属する部分は、引張コイルスプリング２２の弾性付勢力（弾性復元力）に抗して可動係合体２０を係合解除位置に保持したまま、ダクト側板１の倒伏姿勢又は起立姿勢への揺動操作を案内することができるように、枢支ピン１０の揺動軸芯Ｘを半径中心とする円弧状の摺接ガイド面２３に構成されている。
【００５６】
そして、ダクト側板１が起立姿勢に切換えられると、ブラケット６の両側板部６ａに形成された第３係合凹部１９と、アーム４の両側板部４ａに貫通支持され、かつ、ブラケット６の両フランジ部６ｄの摺接ガイド面２３に沿って摺動案内されてきた可動係合体２０とが合致し、可動係合体１６が引張コイルスプリング２１の弾性付勢力で第３係合凹部１９内に係入して、ダクト側板１を起立姿勢に維持する。
【００５７】
つまり、この第１実施形態では、倒伏姿勢にあるダクト側板１が起立姿勢に切換えられたとき、ダクト側板１を起立姿勢に維持するための姿勢維持手段Ｂが、起立姿勢にあるダクト側板１の下端部と連結部材２の底板部２ａとの相対向する部位に係脱自在に形成された第１・第２係合凸部１７，１８と第１・第２係合凹部１５，１６を備えた第１姿勢維持機構と、起立姿勢にあるダクト側板１のブラケット６と連結部材２のアーム４との相対向する部位に設けられる第３係合凹部１９と可動係合体２０、倒伏姿勢にあるダクト側板１が起立姿勢に切換えられたとき、可動係合体２０を第３係合凹部１９内に係入するように移動付勢する付勢手段の一例である引張コイルスプリング２２を備えた第２姿勢維持機構から構成されている。
【００５８】
前記遊び規制手段Ｃは、ブラケット６の各当て板部６ｃに、連結部材２の側板部２ｂの上端に折り曲げ形成されたフランジ部２ｃの外側面（上面）に接触又は近接する第１規制片２４と、連結部材２の側板部２ｂの外側面に接触又は近接する第２規制片２５とをＬ字状に連続的に折曲げ形成して構成されているとともに、第２規制片２５のダクト幅方向中央側の側辺部２５ａが、その先端ほど連結部材２の側板部２ｂの外側面から離間する傾斜姿勢（又は湾曲姿勢）に形成されている。
【００５９】
そして、ダクト側板１が倒伏姿勢から起伏姿勢に切換えられたとき、ダクト側板１側に設けられた遊び規制手段Ｃの第１規制片２４が、連結部材２のフランジ部２ｃの外側面に接触又は近接することにより、枢支連結部での隙間（クリアランス）に起因するダクト側板１と連結部材２との上下方向でのガタツキ（遊び）を抑制することができ、更に、遊び規制手段Ｃの第２規制片２５が、連結部材２の側板部２ｂの外側面に接触又は近接することにより、枢支連結部での隙間（クリアランス）に起因するダクト側板１と連結部材２とのダクト長手方向でのガタツキ（遊び）を抑制することができる。
【００６０】
また、ダクト側板１を倒伏姿勢から起伏姿勢に切換える際、その切換え操作の前半側において、ダクト側板１と連結部材２との枢支連結箇所に発生している隙間（クリアランス）に起因するガタツキ（遊び）によって、第２規制片２５のダクト幅方向中央側の側辺部２５ａが連結部材２の側板部２ｂの上端部側又はフランジ部２ｃに接触しても、傾斜姿勢（又は湾曲姿勢）に形成された第２規制片２５の側辺部２５ａによるガイド作用により、両者２，２５の食い込みを回避することができる。
【００６１】
〔第２実施形態〕
図１３は、ダクト側板１が倒伏姿勢から起伏姿勢に切換えられたとき、連結部材２の外側面の一部に接触又は近接することにより、枢支連結部での隙間（クリアランス）に起因するダクト側板１と連結部材２とのガタツキ（遊び）を抑制する遊び規制手段Ｃの改良を示し、これは、ブラケット６の各当て板部６ｃに、連結部材２の側板部２ｂの上端に折り曲げ形成されたフランジ部２ｃの外側面（上面）に接触又は近接する第１規制片２４と、連結部材２の側板部２ｂの外側面に接触又は近接する第２規制片２５をＬ字状に連続的に折曲げ形成して構成されているとともに、第２規制片２５のダクト幅方向中央側の側辺部２５ａを、その先端ほど連結部材２の側板部２ｂの外側面から離間する傾斜姿勢に形成し、更に、第１規制片２４のダクト幅方向中央側の側辺部２４ａを、その先端ほど連結部材２のフランジ部２ｃの外側面（上面）から離間する傾斜姿勢に形成されている。
【００６２】
そして、ダクト側板１を倒伏姿勢から起伏姿勢に切換える際、その切換え操作の前半側において、ダクト側板１と連結部材２との枢支連結箇所に発生している隙間（クリアランス）に起因するガタツキ（遊び）によって、第１規制片２４のダクト幅方向中央側の側辺部２４ａが連結部材２のフランジ部２ｃに接触しても、傾斜姿勢に形成された第１規制片２４の側辺部２４ａによるガイド作用により、両者２，２４の食い込みを回避することができる。
【００６３】
尚、その他の構成は、第１実施形態で説明した構成と同一であるから、同一の構成箇所には、第１実施形態と同一の番号を付記してそれの説明は省略する。
【００６４】
〔第３実施形態〕
上述の第２実施形態では、遊び規制手段Ｃを構成する第１規制片２４のダクト幅方向中央側の側辺部２４ａを、その先端ほど連結部材２のフランジ部２ｃの外側面から離間する傾斜姿勢に形成したが、図１４に示すように、第１規制片２４のダクト幅方向中央側の側辺部２４ａを、その先端ほど連結部材２のフランジ部２ｃの外側面（上面）から離間するように、枢支ピン１０の揺動軸芯Ｘを半径中心とする円弧状に構成してもよい。
尚、その他の構成は、第１実施形態で説明した構成と同一であるから、同一の構成箇所には、第１実施形態と同一の番号を付記してそれの説明は省略する。
【００６５】
〔その他の実施形態〕
（１）上述の各実施形態では、倒伏姿勢にあるダクト側板１の起立姿勢への切換え操作を利用してダクト側板１を起立姿勢に維持するための姿勢維持手段Ｂを設けたが、ダクト側板１を倒伏姿勢に維持するロック機構を設けてもよい。
この場合、ロック機構を単独でロック状態とロック解除状態とに切換え操作自在に構成してもよいが、起立姿勢にあるダクト側板１の倒伏姿勢への切換え操作に連動してロック機構をロック状態に切換えるように構成してもよい。
【００６６】
（２）前記姿勢維持手段Ｂとしては、上述の各実施形態で説明した構造のものに限定されるものではなく、倒伏姿勢にあるダクト側板１の起立姿勢への切換え揺動に一体移動又は連動して係合又は嵌合若しくは圧接することによりダクト側板１を起立姿勢に維持することのできるものであれば、如何なる構造に構成してもよい。
【００６７】
（３）上述の各実施形態では、アーム４の下端面４ｃを連結部材２の底板部２ａに当て付けた状態で枢着することにより、連結部材２に対してアーム４を回動不能に取付けたが、連結部材２とアーム４とをビスや溶接などの他の取付け手段で固設してもよい。
要するに、連結部材２に対するアーム４の取付け構造及びアーム４の形状は適宜変更可能である。
【００６８】
（４）上述の各実施形態では、遊び規制手段Ｃを、連結部材２の側板部２ｂの上端に折り曲げ形成されたフランジ部２ｃの外側面（上面）に接触又は近接する第１規制片２４と、連結部材２の側板部２ｂの外側面に接触又は近接する第２規制片２５とから構成したが、第１規制片２４又は第２規制片２５の何れか一方で構成してもよい。
【００６９】
（５）上述の各実施形態では、各ダクト側板１の下側部に設けられたブラケット６と連結部材２の端部に設けられたアーム４とを、連結部材２の上面よりも上方に偏位した部位においてダクト長手方向に沿う軸芯Ｘ周りで揺動自在に枢支連結したが、各ダクト側板１の側のブラケット６と連結部材２側のアーム４とを、連結部材２の上面と同じ高さ位置又はそれよりも下方に偏位した部位においてダクト長手方向に沿う軸芯Ｘ周りで揺動自在に枢支連結してもよい。
【００７０】
（６）上述の各実施形態では、子桁状に構成された複数本の連結部材２を、両ダクト側板１の相対向する複数箇所に亘って取付けたが、両ダクト側板１の長さが短い場合には、両ダクト側板１の相対向する一箇所に亘って一本の連結部材２を取付けてもよい。
また、前記連結部材２を、両ダクト側板１の下部開口を覆う底板から構成してもよい。
【図面の簡単な説明】
【図１】本発明の第１実施形態を示す化粧ダクトの開蓋状態の一部分解斜視図
【図２】ダクト本体の拡大斜視図
【図３】組立て前の要部の分解斜視図
【図４】組立て途中における要部の拡大斜視図
【図５】組立て後の要部の拡大斜視図
【図６】ダクト側板が傾斜姿勢にあるときの要部の拡大斜視図
【図７】ダクト側板が倒伏姿勢にあるときの取付け金具及び連結部材の斜視図
【図８】ダクト側板が倒伏姿勢にあるときの横断正面図
【図９】ダクト側板が起立姿勢にあるときの横断正面図
【図１０】（イ）〜（ハ）はダクト側板が倒伏姿勢、中間の傾斜姿勢、起立姿勢にあるときの要部の拡大横断正面図
【図１１】ダクト側板が中間の傾斜姿勢にあるときの取付け金具及び連結部材の拡大断面側面図
【図１２】ダクト側板が起立姿勢にあるときの取付け金具及び連結部材の拡大断面側面図
【図１３】本発明の化粧ダクトの第２実施形態を示し、ダクト側板が中間の傾斜姿勢にあるときの要部の拡大横断正面図
【図１４】本発明の化粧ダクトの第３実施形態を示し、ダクト側板が中間の傾斜姿勢にあるときの要部の拡大横断正面図
【符号の説明】
Ａ取付け金具
Ｂ姿勢維持手段
Ｃ遊び規制手段
Ｄダクト本体
Ｘ揺動軸芯
１ダクト側板
２連結部材
２ａ底板部
２ｂ側板部
２ｃフランジ部
３天蓋
４アーム
５取付け軸（枢支ピン）
６ブラケット
１０取付け軸（枢支ピン）
１５係合凹部（第１係合凹部）
１６係合凹部（第２係合凹部）
１７係合凸部（第１係合凸部）
１８係合凸部（第２係合凸部）
１９係合凹部（第３係合凹部）
２０可動係合体
２２付勢手段（引張コイルスプリング）
２４第１規制片
２４ａ側辺部
２５第２規制片
２５ａ側辺部[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is a decorative duct used when arranging air conditioning piping, electric cables, and the like.Specifically, a duct body including a pair of left and right duct side plates and a connecting member that connects lower end portions thereof to each other, The present invention relates to a plumbing or wiring decorative duct to which a canopy covering an upper opening thereof is detachably mounted, and a fixture used for the duct.
[0002]
[Prior art]
In the case of a conventional duct for piping or wiring, of the two inside corners formed by the inner surface of the duct side plate and both side plates of the C-shaped channel-shaped connecting member applied at right angles thereto, A hinge having a hinge axis vertically extending is attached to the inner side surface of the duct side plate forming one of the corners and the one side plate portion of the connecting member, and the two duct side plates and the connecting member are connected to each other by the hinges. It was configured to be freely foldable so that it could be overlapped by swinging operation around the axis. (For example, refer to Patent Document 1).
[0003]
[Patent Document 1]
JP-A-7-71688 (pages 2-3, FIGS. 2 and 3)
[0004]
[Problems to be solved by the invention]
In a conventional duct for ducting or wiring, since both duct side plates and a plurality of connecting members constituting the duct main body can be folded in an overlapping posture, a large number of folded duct main bodies can be efficiently stacked in a stacked state. Not only can it be stored, but it can be carried to the construction site in a folded state, so that there is an advantage that transportation costs can be reduced and handling can be facilitated.
[0005]
However, of the two inner corners formed by the inner side surface of the duct side plate and the two side plate portions of the connecting member applied at right angles thereto, the inner side surface of the duct side plate forming one of the inner corners and the connecting member Since the hinge is attached to one of the side plate portions, the mechanical strength when the duct body is extended to the regular duct shape is apt to decrease, and the hinge member extends around the hinge axis along the vertical direction of the connecting member. In this case, the swing allowance at the position appears as a displacement between the two duct side plates in the longitudinal direction of the duct, so that the total length in the folded posture is larger than that when the duct is extended into the regular duct shape.
[0006]
Also, in order to increase the mechanical strength when the duct main body is extended to the regular duct shape, a reinforcing plate that contacts the inner surface of the duct side plate at the time of extension is fixed to the end of each connecting member, It is necessary to fix and connect this reinforcing plate and the duct side plate in the standing position with screws etc., which not only leads to an increase in the weight of the duct and a rise in manufacturing cost, but also increases the number of assembly work steps after the extension operation. There is a problem to do.
[0007]
The present invention has been made in view of the above-described situation, and a main problem is that the duct main body is formed by rationally remodeling the folding directions of the two duct side plates and the connecting member constituting the duct main body. While being able to freely switch to a folding position that is advantageous in terms of management, transport, and handling, it also prevents the total length of the duct from increasing when folded and prevents the duct from expanding when it is expanded to the regular duct shape. An object of the present invention is to provide a decorative duct for piping or wiring and a fixture for decorative duct, which can advantageously secure mechanical strength in terms of structure, cost, and the like.
[0008]
[Means for Solving the Problems]
According to a feature of the present invention, a canopy for covering an upper opening of a duct body having a pair of left and right duct side plates and a connecting member for connecting lower portions thereof is detachably mounted. A plumbing duct for piping or wiring,
Each duct side plate is configured to be freely switchable between an upright posture and a posture in which the duct side plate is laid down on the connecting member by an up-and-down swing around an axis along the duct longitudinal direction with respect to the connecting member, and the duct in the laid down posture. When the side plate is switched to the upright position, posture maintaining means for maintaining the duct side plate in the upright position is provided.Furthermore, when the duct side plate is switched from the down position to the up and down position, the connecting member is provided on the duct side plate side. Is provided with a play restricting means that comes into contact with or comes close to a part of the outer surface.
[0009]
According to the above-mentioned characteristic configuration, by switching both duct side plates of the duct main body to the posture in which the duct main body is laid down on the connecting member around the axis along the longitudinal direction of the duct, the duct main body can be simply folded in a low volume and compactly. In addition, the connecting members of the other duct bodies can be stably stacked on both duct side plates of the folded duct body.
[0010]
Further, when each duct side plate in the lying posture is switched to the standing posture, each duct side plate can be maintained in the standing posture by the posture maintaining means, so that each duct side plate is brought into the standing posture after the extension operation of the duct body. A special operation for maintaining is not required, and the swing axis of both duct side plates with respect to the connecting member is configured on the axis along the duct longitudinal direction, so that the total length of the duct body at the time of folding and extension is reduced. Even if the width of the pivotal connection between the duct side plate and the connecting member has a width in the longitudinal direction of the duct, the swing operation for switching the position of each duct side plate with respect to the connecting member is hindered. Never.
[0011]
In addition, even when a gap (clearance) is generated at the pivotal connection point between the two duct side plates and the connecting member, the play regulating means provided on the duct side plate side when the duct side plate is switched from the lying position to the up and down position. It is possible to suppress rattling between the two duct side plates and the connecting member due to a gap in the pivot connecting portion by contacting or approaching a part of the outer surface of the connecting member.
[0012]
Therefore, by devising the folding directions of the two duct side plates and the connecting member constituting the duct main body as described above, the duct main body can be freely switched to a folding position that is advantageous in terms of management, transport, and handling. However, it is possible to prevent an increase in the overall length of the duct when folded, to promote reduction in the volume of packaging materials and waste, and to reduce the length of the duct body when it is expanded to the regular duct shape. Rattle can be suppressed. In addition, the mechanical strength when the duct is extended to the regular duct shape can be easily secured while suppressing the increase in the weight of the duct, the increase in manufacturing cost, or the increase in the number of work steps after the extension operation.
[0013]
According to a second feature of the present invention, a canopy for covering an upper opening of a duct body having a pair of left and right duct side plates and a connecting member for connecting lower portions thereof is detachably mounted. A plumbing duct for piping or wiring,
The bracket provided on the lower side of the duct side plate and the arm provided on the end side of the connecting member swing around an axis along the duct longitudinal direction at a position deviated above the upper surface of the connecting member. When the duct side plate in the lying posture is switched to the standing posture while being freely pivotally connected, posture maintaining means for maintaining the duct side plate in the standing posture is provided, and further, the duct side plate is provided on the bracket. The point is that a play restricting means is provided which comes into contact with or approaches a part of the outer surface of the connecting member when the posture is switched from the lying posture to the rising posture.
[0014]
According to the above-mentioned characteristic configuration, the bracket provided on the lower side of the duct side plate and the arm provided on the end side of the connecting member are switched to the falling posture around the axis along the duct longitudinal direction. Not only can the main body be folded low and compact, but also the connecting members of the other duct main bodies can be stably stacked on both duct side plates of the folded duct main body.
[0015]
Further, when each duct side plate in the lying posture is switched to the standing posture, each duct side plate can be maintained in the standing posture by the posture maintaining means, so that each duct side plate is brought into the standing posture after the extension operation of the duct body. This eliminates the need for any special operation to maintain, and because the swing axis of the bracket of each duct side plate with respect to the arm of the connecting member is configured to be the axis along the duct longitudinal direction, the duct at the time of folding and extension The swing operation for switching the posture of each duct side plate with respect to the connecting member even if the total length of the main body becomes the same and the pivotal connection width between the duct side plate and the connecting member has a width in the duct longitudinal direction. There is no hindrance.
[0016]
In addition, even when a gap (clearance) is generated at the pivotal connection between the two duct side plates and the connecting member, when the duct side plate is switched from the lying position to the up and down position, the play regulating means provided on the bracket is provided with the connecting member. Contacting or proximate to a part of the outer surface of the connecting member, it is possible to suppress rattling between the duct side plate and the connecting member due to the gap in the pivot connecting portion, and to make each duct side plate contact the upper surface of the connecting member. When switched to the lying posture, the outer side surfaces of both duct side plates in the lying posture become nearly horizontal.
[0017]
Therefore, by devising the folding directions of the two duct side plates and the connecting member constituting the duct main body as described above, the duct main body can be freely switched to a folding position that is advantageous in terms of management, transport, and handling. However, it is possible to prevent an increase in the overall length of the duct at the time of folding, and to promote a reduction in the volume of packaging materials and a reduction in waste. In addition, the rattling when the duct body is extended to the regular duct shape can be suppressed, and the mechanical strength when the duct body is extended to the regular duct shape increases the weight of the duct and increases the manufacturing cost or It is possible to easily secure the number of work steps after the extension operation while suppressing an increase in the number of work steps, and furthermore, it is possible to facilitate the multi-stage stacking of the folded duct main bodies.
[0018]
A feature of the decorative duct for piping or wiring according to claim 3 of the present invention is that the play restricting means contacts or approaches the outer surface of the flange formed by bending the upper end of the side plate of the connecting member. And a second regulating piece that is in contact with or close to the outer surface of the side plate portion of the connecting member.
[0019]
According to the above-mentioned characteristic configuration, when the duct side plate is switched from the laid-down posture to the up-and-down posture, the first restricting piece of the play restricting means provided on the duct side plate is in contact with or near the outer surface of the flange portion of the connecting member. By doing so, it is possible to suppress rattling in the vertical direction between the duct side plate and the connecting member due to the gap in the pivot connecting portion, and furthermore, the second restricting piece of the play restricting means is provided with a side plate portion of the connecting member. By contacting or approaching the outer surface of the duct, it is possible to suppress rattling in the duct longitudinal direction between the duct side plate and the connecting member due to a gap in the pivotal connection.
[0020]
Therefore, the first and second restricting pieces of the play restricting means can effectively suppress rattling and twisting when the duct body is extended into a regular duct shape.
[0021]
In the characteristic configuration of the decorative duct for piping or wiring according to claim 4 of the present invention, the side portion of the second regulating piece on the center side in the duct width direction is separated from the outer surface of the side plate portion of the connecting member toward its tip end. The point is that it is formed in an inclined posture or a curved posture.
[0022]
According to the above characteristic configuration, when the duct side plate is switched from the lying posture to the up-and-down posture, the switching operation is caused by a gap (clearance) generated at a pivotally connected portion between the duct side plate and the connecting member in the first half of the switching operation. Due to the backlash, even if the side of the second restricting piece on the center side in the duct width direction contacts the upper end of the side plate of the connecting member, the side of the second restricting piece formed in the inclined posture or the curved posture. By the guide action by the above, the biting of both can be avoided.
[0023]
According to the characteristic configuration of the decorative duct for piping or wiring according to claim 5 of the present invention, a side portion of the first restricting piece on the center side in the duct width direction is separated from the outer surface of the flange portion of the connecting member toward its tip end. The point is that it is formed in an inclined posture or a curved posture.
[0024]
According to the above characteristic configuration, when the duct side plate is switched from the lying posture to the up-and-down posture, the switching operation is caused by a gap (clearance) generated at a pivotally connected portion between the duct side plate and the connecting member in the first half of the switching operation. Due to the backlash, even if the side of the first restricting piece on the center side in the duct width direction comes into contact with the flange of the connecting member, the guiding action by the side of the first restricting piece formed in the inclined posture or the curved posture. , It is possible to avoid biting of both.
[0025]
The characteristic configuration of the decorative duct for piping or wiring according to claim 6 of the present invention is characterized in that the bracket of the duct side plate is in contact with or close to opposing sides of both flange portions of the connecting member. The arm is swingably connected to the bracket in the width direction of the duct, and the arm pivotally attached to the bracket is pivotally attached to the bottom plate of the connecting member. The point is that it is attached to the plate by an attachment shaft extending along the longitudinal direction of the duct.
[0026]
According to the above-mentioned characteristic configuration, when assembling the duct main body including the pair of left and right duct side plates and the connecting member that connects the lower portions thereof, the arm is attached to the bracket attached to the duct side plate along the duct longitudinal direction. After attaching the bracket on which the arm is mounted so as to be able to swing up and down around the axis, or the arm that is assembled so as to be able to swing up and down, attach the bracket on the duct side plate to the duct width with respect to the end of the connecting member. It is only necessary to insert and connect from both directions, and to assemble both side plates of the connecting member and the arm with the mounting shaft, so that the efficiency of the assembling operation can be improved.
[0027]
In addition, in the assembled state, the arm is fixed to both side plates of the connecting member in a state in which the arm is non-rotatably applied to the bottom plate of the connecting member. And the bracket of the duct side plate is in contact with or close to the opposing sides of both flanges of the connecting member. The rattling of the duct side plate and the connecting member in the longitudinal direction of the duct can be more favorably suppressed.
[0028]
In the characteristic configuration of the decorative duct for piping or wiring according to claim 7 of the present invention, the posture maintaining means can be freely disengaged from a position where a lower end portion of the duct side plate and a bottom plate portion of the connecting member in the standing posture are opposed to each other. When the duct side plate in the lying down position is switched to the upright position, the engaging protrusion and the engaging recess are formed while riding over the periphery of the engaging recess. Are configured to engage with each other.
[0029]
According to the above-mentioned characteristic configuration, it is only necessary to form the engaging convex portion and the engaging concave portion at portions opposed to each other between the lower end portion of the duct side plate and the bottom plate portion of the connecting member in the upright posture, and Since the switching operation of the duct side plate to the standing posture is used, the posture maintaining means for maintaining the duct side plate in the standing posture can be advantageously configured in terms of structure, manufacturing cost, and appearance design.
[0030]
In the characteristic configuration of the decorative duct for piping or wiring according to claim 8 of the present invention, the posture maintaining means includes an engaging recess at a position where the bracket of the duct side plate in the standing posture and the arm of the connecting member face each other. A movable engagement body is provided which is disengageable from the swinging radial direction, and the movable engagement body is engaged with the engagement recess when the duct side plate in the lying posture is switched to the standing posture. It is characterized in that it is provided with a biasing means for biasing the movement.
[0031]
According to the above configuration, when the duct side plate in the lying posture is switched to the standing posture, the engagement concave portion provided in the opposed portion between the bracket of the duct side plate in the standing posture and the arm of the connecting member is movable. The engaging body is engaged by the urging force of the urging means, so that the duct side plate switched to the upright posture can be reliably prevented from falling and swinging.
[0032]
According to a ninth aspect of the present invention, in a duct body including a pair of left and right duct side plates and a connecting member that connects the lower portions thereof, a lower portion of the duct side plate is used as an end of the connecting member. A mounting device that pivotally connects to be able to swing up and down,
A bracket attached to the lower side of the duct side plate and an arm attached to the end of the connecting member are swingable around an axis along the duct longitudinal direction at a position deviated above the upper surface of the connecting member. At a position opposed to the bracket and the arm, which is pivotally connected, posture maintaining means for maintaining the duct side plate in the upright posture when the duct side plate in the lying posture is switched to the upright posture is provided. Further, the bracket is provided with a play restricting means that comes into contact with or comes close to a part of the outer surface of the connecting member when the duct side plate is switched from the laid-down posture to the up-and-down posture.
[0033]
According to the characteristic configuration, the bracket attached to the lower side of the duct side plate and the arm attached to the end of the connecting member are switched to the falling posture around the axis along the duct longitudinal direction. Not only can the main body be folded low and compact, but also the connecting members of the other duct main bodies can be stably stacked on both duct side plates of the folded duct main body.
[0034]
Further, when the duct side plates in the lying posture are switched to the standing posture, the duct side plates can be maintained in the standing posture by the posture maintaining means provided at the opposing portions of the bracket and the arm. No special operation is required to maintain each duct side plate in the upright posture after the main unit is extended, and the swing axis of the bracket with respect to the arm is configured to be the axis along the duct longitudinal direction. And the entire length of the duct body at the time of extension becomes the same, even if the pivotal connection structure between the duct side plate and the connecting member has a width in the duct longitudinal direction, for switching the posture of the duct side plate with respect to the connecting member. There is no hindrance to the rocking operation.
[0035]
In addition, even if a gap (clearance) is generated in the pivotal connection between the bracket and the arm, when the duct side plate is switched from the laid-down posture to the up-and-down posture, the play restricting means provided on the bracket is provided on the outer surface of the connection member. Of the duct side plate and the connecting member due to the gap at the pivotal connection part, and the duct side plate abuts on the upper surface of the connecting member. , The outer side surfaces of both duct side plates in the lying posture become nearly horizontal.
[0036]
Therefore, while enabling the duct body to be freely switched to a folding position that is advantageous in terms of management, transportation, and handling, it is possible to prevent an increase in the overall length of the duct at the time of folding, and to reduce the volume of packaging materials. Waste reduction can be promoted. In addition, the rattling when the duct body is extended to the regular duct shape can be suppressed, and the mechanical strength when the duct body is extended to the regular duct shape increases the weight of the duct and increases the manufacturing cost or It is possible to easily secure the number of work steps after the extension operation while suppressing an increase in the number of work steps, and furthermore, it is possible to facilitate the multi-stage stacking of the folded duct main bodies.
[0037]
BEST MODE FOR CARRYING OUT THE INVENTION
[First Embodiment]
FIGS. 1 to 12 show a decorative duct used when a plurality of air-conditioning pipes, electric cables, and the like are arranged in a group, and a pair of left and right sheet metal duct side plates (parent girder) facing each other in the duct width direction. 1) and a plurality (two in the present embodiment) of metal connecting members (child girders) 2 arranged at appropriate intervals in the longitudinal direction of the duct and connecting the lower portions of both duct side plates 1 to each other. A sheet metal canopy 3 that covers an upper opening of the duct main body D is detachably attached to the duct main body D, and the lower side of the duct side plate 1 is swingable up and down with respect to the end of the connecting member 2. A mounting fixture A for pivotal connection is provided, and each duct side plate 1 is moved up and down around a horizontal axis X along the duct longitudinal direction with respect to the end of the connecting member 2 so that the duct side plate 1 moves relative to the connecting member 2. Switch between the upright posture and the posture lying down on the connecting member 2 It is configured to standing.
[0038]
The attachment A mainly includes a metal bracket 6 attached to a lower portion of the duct side plate 1 and a metal arm 4 attached to an end of the connecting member 2. The arm 4 is pivotally connected around a horizontal axis X extending along the longitudinal direction of the duct at a position deviated above the upper surface of the connecting member 2 so as to be swingable. At the facing part, there is provided a posture maintaining means B for maintaining the duct side plate 1 in the standing posture when the duct side plate 1 in the lying posture is switched to the standing posture, and further, a bracket 6 on the duct side plate 1 side. When the duct side plate 1 is switched from the laid-down posture to the up-and-down posture, the duct side plate 1 comes into contact with or comes close to a part of the outer surface of the connecting member 2, thereby causing the duct due to the clearance (clearance) at the pivot connecting portion. Suppressing play regulating means C backlash (play) between the side plate 1 and the coupling member 2 is provided.
[0039]
The lower part of the center side plate part 1A of each of the duct side plates 1 has a lower inclined side part 1a extending inward and downward in the duct width direction at an angle of about 45 degrees, and a duct extending from the tip of the lower inclined side part 1a. A lower bent edge portion 1b extending horizontally inward in the width direction is formed continuously, and the lower bent edge portion 1b is provided with a metal bottom plate or an end portion of the adjacent duct body D. A plurality of mounting holes 1c for a metal joint member or the like for fixed connection are formed through.
[0040]
The upper end of the center side plate 1A of each duct side plate 1 has an upper inclined side 1d extending inward and upward in the duct width direction at an angle of approximately 45 degrees, and a duct extending from the tip of the upper inclined side 1d. An upper bent edge 1e extending horizontally inward in the width direction is formed continuously, and a nut for fastening and fixing the canopy 3 to the upper bent edge 1e detachably with screws 9 is provided. (Not shown) are fixed, and a locking hole 1f for the locking portion 14a of the metal reinforcing plate 14 laid across the upper bent edge 1e of both duct side plates 1, and a duct. A plurality of mounting holes 1g for the joint member are formed.
[0041]
At the left and right side edges of the canopy 3, a horizontal side 3a placed and supported along an upper bent edge 1e of both duct side plates 1 and an inclined bend applied along an upper inclined side 1d. The edge portion 3b is formed continuously, and is configured to be stably mounted on the upper end portions of both duct side plates 1 in a fitted state.
[0042]
The connecting member 2 is bent along the longitudinal direction (duct width direction) at four locations in the width direction (duct longitudinal direction) so that the cross-sectional shape becomes a C-shaped channel, and a pair of left and right sides is formed. A bottom plate 2a having a length that can be placed over the lower bent edge portion 1b of the duct side plate 1, a pair of side plate portions 2b facing each other in the width direction, and an inner side in the width direction from the upper end thereof. And a pair of flanges 2c extending obliquely downward.
[0043]
In addition, each of both longitudinal end surfaces 2 d of both side plate portions 2 b of the connecting member 2 can be brought into contact with the lower inclined side portion 1 a in a state of being mounted over the lower bent edge portions 1 b of both duct side plates 1. It is configured with a simple inclined surface.
[0044]
The arm 4 includes a pair of substantially L-shaped side plate portions 4a protruding upward through opposing sides of both flange portions 2c of the connecting member 2 when viewed in the longitudinal direction of the duct, and extends over a bent portion thereof. The connecting plate 4b to be provided is formed by bending in a U-shape, and the lower end surface 4c of the connecting plate 4b is applied to the bottom plate 2a of the connecting member 2 in a non-rotatable state. The connecting member 2 is fixed to an end portion of both side plate portions 2b so as to be detachable by a single mounting shaft 5 along the longitudinal direction of the duct.
[0045]
The mounting shaft 5 can be freely inserted and removed from one side with respect to a mounting hole 2e formed through both side plates 2b of the connecting member 2 and a first mounting hole 4d formed through both side plates 4a of the arm 4. It is composed of a pivot pin with a head 5a to be inserted, and a mounting hole 5c for mounting a retaining pin 7 such as a beta pin is formed through the tip of the pivot shaft 5b. .
[0046]
The bracket 6 is formed by bending a pair of side plate portions 6a opposed to each other in the longitudinal direction of the duct and a connecting plate portion 6b continuously provided over the bottom side thereof in an upward U-shape when viewed in the duct width direction. At the same time, each side plate portion 6a is formed by bending a pair of contact plate portions 6c which are fixed to the central side plate portion 1A of the duct side plate 1 with rivets 8 at right angles.
[0047]
Further, as shown in FIG. 12, the outer surface interval W1 in the duct direction of both side plate portions 6a of the bracket 6 is configured to be slightly smaller than the opposing side edge interval W2 of both flange portions 2c, and Are connected to the ends of the connecting member 2 so as to be able to be freely inserted and removed from the end of the connecting member 2 in the duct width direction while being in contact with or in proximity to the opposing sides of the two flange portions 2c. Flanges 6 d protruding toward each other are formed by bending at the upper half side peripheral portion of the plate portion 6 a, and a distance W 3 between the opposite side sides of the two flange portions 6 d is determined by a duct in the both side plate portions 4 a of the arm 4. It is configured to be slightly larger than the outer surface interval W4 in the longitudinal direction.
[0048]
In addition, a mounting hole 6e is formed through a portion corresponding to the pivot axis of both side plate portions 6a of the bracket 6, and a second mounting hole 4e is formed through a portion corresponding to the pivot axis of both side plate portions 4a of the arm 4. Thus, the two side plate portions 6a of the bracket 6 and the both side plate portions 4a of the arm 4 are displaced upward from the upper surface of the connecting member 2 by one mounting shaft 10 inserted through the mounting holes 6e and 4e. In this position, it is pivotally connected so as to be swingable around an axis X along the longitudinal direction of the duct.
[0049]
The mounting shaft 10 is removably inserted from one side into a mounting hole 6e formed in both side plate portions 6a of the bracket 6 and a mounting hole 4e formed in both side plate portions 4a of the arm 4. It is constituted by a pivot pin with a head 10a, and a mounting hole 10c for mounting a retaining pin 7 such as a beta pin is formed through the distal end of the pivot shaft portion 10b.
[0050]
As shown in FIGS. 1 and 9, the two duct side plates 1 are vertically or substantially perpendicularly arranged with respect to the upper surface of the connecting member 2 by a swing operation around the axis X of the pivot pin 10. As shown in FIG. 8 and FIG. 10 (a), the tip of the upper bent edge 1e is configured to be freely switchable to a falling posture in which it contacts the upper surface of the connecting member 2, and both duct side plates 1 are In the state in which the duct side plate 1 is in the lying posture, it is desirable that the outer side surface of the central side plate portion 1A is in a horizontal posture. In the present embodiment, the duct side plate 1 has a gentle inclination posture in which the upper bent edge portion 1e becomes slightly higher. It is configured.
[0051]
However, even when the central side plate portions 1A of the two duct side plates 1 in the lying posture are configured to have a gentle inclination posture, when the duct bodies D are stacked in multiple stages, the duct body D extends over both the duct side plates 1 located in the lower layer. Therefore, the connecting members 2 of the duct body D located on the upper layer side are supported at two points in the left-right direction, so that there is no problem in stacking the duct bodies D in multiple stages.
[0052]
Next, the posture maintaining means B will be described.
As shown in FIGS. 3 to 6, a first engaging concave portion 15 that penetrates while being tapered to a truncated cone shape or a partial spherical shape is punched out from the lower surface side at the center position in the width direction at the end of the bottom plate portion 2 a of the connecting member 2. A second engaging concave portion 16 which is formed in a rectangular shape and is formed by punching is formed at a corner portion located on both sides in the width direction, and a lower bent edge portion 1b of the duct side plate 1 has a A frustum-shaped or partially spherical first engaging projection 17 which can be disengaged from the one engaging recess 15 in the swinging direction around the pivot pin 10, and a pivoting support for each second engaging recess 16. An inverted V-shaped second engagement projection 18 is formed to be detachable from a swinging direction around the pin 10.
[0053]
Also, the tip movement trajectory of the first engagement projection 17 and the engagement side peripheral edge of the first engagement recess 15, and the tip movement trajectory of the second engagement projection 18 and the engagement side of the second engagement recess 16. The peripheral edge and the duct side plate 1 are configured so as to intersect at a slight overlap allowable by elastic deformation of the duct side plate 1, and when each duct side plate 1 in the lying posture is switched to the standing posture, the first engagement is performed. The second engagement convex portion 17 and the second engagement convex portion 18 and the second engagement convex portion 18 are formed while climbing over the engagement side peripheral edge of the concave portion 15 and the engagement side peripheral edge of the second engagement concave portion 16. It is configured to engage with the concave portion 16
[0054]
Furthermore, a third member that opens radially outward through the pivot axis X of the pivot pin 10 at a portion of the outer peripheral edge of the both side plate portions 6a of the bracket 6 that is continuous with the tip of the flange portion 6d. A joint recess 19 is formed, and a portion of the both side plate portions 4a of the arm 4 which faces the third engagement recess 19 of the bracket 6 when the duct side plate 1 is in the upright posture is provided with a third engagement portion. A long hole-shaped support hole that supports both ends of a pin-shaped or shaft-shaped movable engagement body 20 that can be engaged with the concave portion 19 from the outside in the radial direction so as to be freely supported and disengaged along the radial direction. When the duct side plate 1 in the lying posture is switched to the upright posture over the pivot pin 10 and the movable engagement body 20 constituting the swing axis X, the movable engagement body 20 is formed. Of urging means for moving and urging the second engagement concave portion 19 into engagement therewith. Tension coil spring 22 is stretched is.
[0055]
Further, of the two flange portions 6 d of the bracket 6, a portion belonging to a swing range of about 90 degrees starting from the third engagement concave portion 19 resists the elastic biasing force (elastic restoring force) of the extension coil spring 22. The swing axis X of the pivot pin 10 has a radius such that the swing operation of the duct side plate 1 to the falling posture or the standing posture can be guided while the movable engagement body 20 is held at the disengagement position. An arc-shaped sliding contact guide surface 23 having a center is formed.
[0056]
When the duct side plate 1 is switched to the standing posture, the third engagement concave portion 19 formed in the both side plate portions 6a of the bracket 6 and the both side plate portions 4a of the arm 4 are penetrated and supported. The movable engagement body 20 slidably guided along the sliding contact guide surface 23 of the flange portion 6 d matches, and the movable engagement body 16 is engaged in the third engagement recess 19 by the elastic biasing force of the extension coil spring 21. And maintain the duct side plate 1 in the upright posture.
[0057]
That is, in the first embodiment, when the duct side plate 1 in the lying posture is switched to the standing posture, the posture maintaining means B for maintaining the duct side plate 1 in the standing posture is provided by the posture maintaining means B of the duct side plate 1 in the standing posture. First and second engagement protrusions 17 and 18 and first and second engagement recesses 15 and 16 are provided so as to be detachably engageable at portions where the lower end and the bottom plate 2a of the connecting member 2 face each other. The first posture maintaining mechanism, the third engaging concave portion 19 and the movable engaging body 20 provided at the positions where the bracket 6 of the duct side plate 1 and the arm 4 of the connecting member 2 face each other in the upright posture, and are in the lying posture. When the duct side plate 1 is switched to the upright posture, the second coil provided with a tension coil spring 22 which is an example of an urging means for urging the movable engagement body 20 so as to be engaged in the third engagement concave portion 19. It is composed of a posture maintaining mechanism.
[0058]
The play restricting means C includes a first restricting piece 24 which is in contact with or close to the outer surface (upper surface) of the flange portion 2c formed by bending the upper end of the side plate portion 2b of the connecting member 2 at each of the contact plate portions 6c of the bracket 6. And a second restricting piece 25 that is in contact with or close to the outer surface of the side plate 2b of the connecting member 2 is formed by continuously bending and forming an L-shape, and the duct width of the second restricting piece 25 is formed. The side portion 25a on the center side in the direction is formed in an inclined posture (or a curved posture) in which the front end thereof is separated from the outer surface of the side plate portion 2b of the connecting member 2.
[0059]
Then, when the duct side plate 1 is switched from the laid-down posture to the up-and-down posture, the first restricting piece 24 of the play restricting means C provided on the duct side plate 1 comes into contact with the outer surface of the flange portion 2c of the connecting member 2 or By approaching, the rattling (play) between the duct side plate 1 and the connecting member 2 in the vertical direction due to the clearance (clearance) at the pivot connecting portion can be suppressed. When the second regulating piece 25 comes into contact with or approaches the outer surface of the side plate 2b of the connecting member 2, the longitudinal direction of the duct side plate 1 and the connecting member 2 due to the clearance (clearance) at the pivot connecting portion is increased. (Play) can be suppressed.
[0060]
Also, when the duct side plate 1 is switched from the laid-down posture to the up-and-down posture, in the first half of the switching operation, rattling caused by a clearance (clearance) generated at a pivotally connected portion between the duct side plate 1 and the connecting member 2 ( Due to play, even if the side 25a of the second regulating piece 25 on the center side in the duct width direction comes into contact with the upper end side of the side plate 2b of the connecting member 2 or the flange 2c, the inclined posture (or the curved posture) is obtained. The guide action by the side portion 25a of the formed second restricting piece 25 can prevent the two 2 and 25 from biting.
[0061]
[Second embodiment]
FIG. 13 shows a duct that is caused by a gap (clearance) at a pivot connection part by contacting or approaching a part of the outer side surface of the connection member 2 when the duct side plate 1 is switched from the down position to the up and down position. An improvement of the play restricting means C for suppressing backlash (play) between the side plate 1 and the connecting member 2 is shown by bending each of the abutting plate portions 6c of the bracket 6 at the upper end of the side plate portion 2b of the connecting member 2. The first regulating piece 24 contacting or approaching the outer surface (upper surface) of the flange portion 2c and the second regulating piece 25 contacting or approaching the outer surface of the side plate 2b of the connecting member 2 are continuously formed in an L-shape. In addition to being formed by bending, the side edge 25a of the second regulating piece 25 on the center side in the duct width direction is formed so as to be inclined such that the distal end thereof is more distant from the outer surface of the side plate 2b of the connecting member 2. And the first restriction piece 24 The side portions 24a of the widthwise center side, is formed on the inclined posture away from the outer surface of the flange portion 2c of the connecting member 2 as its front end (upper surface).
[0062]
When the duct side plate 1 is switched from the laid-down posture to the up-and-down posture, rattling (clearance) generated at a pivotally connected portion between the duct side plate 1 and the connecting member 2 in the first half of the switching operation. Due to play, even if the side 24a of the first restricting piece 24 on the center side in the duct width direction contacts the flange 2c of the connecting member 2, the side 24a of the first restricting piece 24 formed in the inclined posture. , It is possible to prevent the two and 24 from biting.
[0063]
Since other configurations are the same as those described in the first embodiment, the same components are denoted by the same reference numerals as those in the first embodiment, and description thereof will be omitted.
[0064]
[Third embodiment]
In the above-described second embodiment, the side 24a of the first restricting piece 24 constituting the play restricting means C on the center side in the duct width direction is inclined such that its distal end is separated from the outer surface of the flange 2c of the connecting member 2. As shown in FIG. 14, as shown in FIG. 14, the side portion 24 a of the first restricting piece 24 on the center side in the duct width direction is separated from the outer surface (upper surface) of the flange portion 2 c of the connecting member 2 toward its tip. As described above, the pivot pin 10 may be formed in an arc shape having the swing axis X as the radial center.
Since other configurations are the same as those described in the first embodiment, the same components are denoted by the same reference numerals as those in the first embodiment, and description thereof will be omitted.
[0065]
[Other embodiments]
(1) In each of the above-described embodiments, the posture maintaining means B for maintaining the duct side plate 1 in the upright position by using the switching operation of the duct side plate 1 in the lying position to the upright position is provided. A lock mechanism for maintaining the device 1 in the lying posture may be provided.
In this case, the lock mechanism may be configured so as to be freely switchable between a locked state and an unlocked state by itself, but the lock mechanism is locked in conjunction with the switching operation of the duct side plate 1 in the standing posture to the falling posture. May be switched.
[0066]
(2) The posture maintaining means B is not limited to the structure described in each of the above embodiments, but is integrally moved or interlocked with the switching swing of the duct side plate 1 in the lying posture to the standing posture. Any structure may be used as long as the duct side plate 1 can be maintained in the upright posture by engaging, fitting, or pressing.
[0067]
(3) In each of the above embodiments, the arm 4 is non-rotatably attached to the connecting member 2 by pivotally attaching the lower end surface 4 c of the arm 4 to the bottom plate 2 a of the connecting member 2. However, the connecting member 2 and the arm 4 may be fixed to each other by other attachment means such as screws or welding.
In short, the structure for attaching the arm 4 to the connecting member 2 and the shape of the arm 4 can be appropriately changed.
[0068]
(4) In each of the above-described embodiments, the play restricting means C includes the first restricting piece 24 that is in contact with or close to the outer surface (upper surface) of the flange 2c formed by bending the upper end of the side plate 2b of the connecting member 2. Although the second regulating piece 25 is in contact with or close to the outer surface of the side plate 2b of the connecting member 2, it may be constituted by either the first regulating piece 24 or the second regulating piece 25.
[0069]
(5) In each of the above embodiments, the bracket 6 provided on the lower side of each duct side plate 1 and the arm 4 provided on the end of the connecting member 2 are biased upward from the upper surface of the connecting member 2. Although the pivotal connection is pivotally supported around the axis X along the longitudinal direction of the duct at the located position, the bracket 6 on each duct side plate 1 and the arm 4 on the coupling member 2 are connected to the upper surface of the coupling member 2. At the same height position or at a position deviated below the same, the pivotal connection may be made so as to be swingable around the axis X along the longitudinal direction of the duct.
[0070]
(6) In each of the above-described embodiments, the plurality of connecting members 2 configured in the form of a child girder are mounted over a plurality of opposing portions of both duct side plates 1, but the length of both duct side plates 1 is reduced. In the case where the length is short, one connecting member 2 may be attached to one opposing portion of both duct side plates 1.
Further, the connecting member 2 may be constituted by a bottom plate that covers the lower openings of both duct side plates 1.
[Brief description of the drawings]
FIG. 1 is a partially exploded perspective view showing an open state of a decorative duct according to a first embodiment of the present invention.
FIG. 2 is an enlarged perspective view of a duct main body.
FIG. 3 is an exploded perspective view of a main part before assembly.
FIG. 4 is an enlarged perspective view of a main part during assembly.
FIG. 5 is an enlarged perspective view of a main part after assembly.
FIG. 6 is an enlarged perspective view of a main part when the duct side plate is in an inclined posture.
FIG. 7 is a perspective view of a mounting member and a connecting member when the duct side plate is in a prone position;
FIG. 8 is a cross-sectional front view when the duct side plate is in the lying posture.
FIG. 9 is a cross-sectional front view when the duct side plate is in an upright posture.
10 (a) to 10 (c) are enlarged cross-sectional front views of main parts when the duct side plate is in a lying posture, an intermediate inclined posture, and a standing posture.
FIG. 11 is an enlarged cross-sectional side view of the mounting bracket and the connecting member when the duct side plate is in the middle inclined position.
FIG. 12 is an enlarged cross-sectional side view of the mounting bracket and the connecting member when the duct side plate is in the upright position.
FIG. 13 is an enlarged cross-sectional front view of a main part when the duct side plate is in an intermediate inclined posture, showing a second embodiment of the decorative duct of the present invention.
FIG. 14 is an enlarged cross-sectional front view of a main part when the duct side plate is in an intermediate inclined position, showing a third embodiment of the decorative duct of the present invention.
[Explanation of symbols]
A Mounting bracket
B posture maintaining means
C play regulation means
D Duct body
X swing axis
1 Duct side plate
2 Connecting members
2a bottom plate
2b Side plate
2c Flange
3 canopy
4 arm
5 Mounting shaft (pivot pin)
6 bracket
10 Mounting shaft (pivot pin)
15 Engagement recess (first engagement recess)
16 Engagement recess (second engagement recess)
17 Engagement protrusion (first engagement protrusion)
18 Engagement protrusion (second engagement protrusion)
19 Engagement recess (third engagement recess)
20 Movable engagement body
22 biasing means (tensile coil spring)
24 1st regulation piece
24a side
25 Second regulation piece
25a side

Claims

A duct or wiring decorative duct in which a canopy covering an upper opening thereof is detachably attached to a duct body including a pair of left and right duct side plates and a connecting member for connecting lower portions thereof. ,
Each duct side plate is configured to be freely switchable between an upright posture and a posture in which the duct side plate is laid down on the connecting member by an up-and-down swing around an axis along the duct longitudinal direction with respect to the connecting member, and the duct in the laid down posture. When the side plate is switched to the upright position, posture maintaining means for maintaining the duct side plate in the upright position is provided.Furthermore, when the duct side plate is switched from the down position to the up and down position, the connecting member is provided on the duct side plate side. A plumbing or wiring decorative duct provided with a play restricting means that comes into contact with or approaches a part of the outer surface of the pipe.

A duct or wiring decorative duct in which a canopy covering an upper opening thereof is detachably attached to a duct body including a pair of left and right duct side plates and a connecting member for connecting lower portions thereof. ,
The bracket provided on the lower side of the duct side plate and the arm provided on the end side of the connecting member swing around an axis along the duct longitudinal direction at a position deviated above the upper surface of the connecting member. When the duct side plate in the lying posture is switched to the standing posture while being freely pivotally connected, posture maintaining means for maintaining the duct side plate in the standing posture is provided, and further, the duct side plate is provided on the bracket. A plumbing or wiring decorative duct provided with a play restricting means that comes into contact with or approaches a part of the outer surface of the connecting member when the posture is switched from the lying posture to the rising posture.

A first regulating piece that contacts or approaches the outer surface of the flange formed by bending the upper end of the side plate of the connecting member, and a second regulating piece that contacts or approaches the outer surface of the side plate of the connecting member. The decorative duct for piping or wiring according to claim 1 or 2, comprising a piece.

4. The piping or wiring according to claim 3, wherein a side portion of the second regulating piece on the center side in the duct width direction is formed in an inclined position or a curved position in which a tip end thereof is separated from an outer surface of the side plate portion of the connecting member. 5. For cosmetic duct.

5. The piping according to claim 3, wherein a side portion of the first restricting piece on the center side in the duct width direction is formed in an inclined posture or a curved posture in which a front end thereof is more distant from an outer surface of the flange portion of the connecting member. Or a decorative duct for wiring.

The bracket of the duct side plate is configured to be freely inserted and connected to the end of the connecting member in the duct width direction in a state of contacting or approaching the opposite side sides of both flange portions of the connecting member, and 4. The arm pivotally attached to the bottom plate of the connecting member so as to be non-rotatably attached to both side plates of the connecting member by mounting shafts extending in the longitudinal direction of the duct. The decorative duct for piping or wiring according to any one of claims 5 to 10.

The posture maintaining means is constituted by an engaging convex portion and an engaging concave portion formed so as to be able to be disengaged from the lower end portion of the duct side plate and the bottom plate portion of the connecting member in an upright posture. 7. The configuration according to claim 1, wherein when the duct side plate in the lying posture is switched to the standing posture, the engaging protrusion and the engaging recess engage while passing over the periphery of the engaging recess. The decorative duct for piping or wiring according to claim 1.

The posture maintaining means includes an engaging concave portion and a movable engaging member which can be disengaged from a swinging radial direction with respect to a portion where the bracket of the duct side plate and the arm of the connecting member in the standing posture oppose each other. 3. The device according to claim 2, further comprising: urging means for urging the movable engagement body to move into the engagement recess when the duct side plate in the lying posture is switched to the standing posture. A decorative duct for piping or wiring.

Of the duct body including a pair of left and right duct side plates and a connecting member connecting the lower portions thereof, the lower side of the duct side plate is pivotally connected to the end of the connecting member so as to be able to swing up and down. A fixture,
A bracket attached to the lower side of the duct side plate and an arm attached to the end of the connecting member are swingable around an axis along the duct longitudinal direction at a position deviated above the upper surface of the connecting member. At a position opposed to the bracket and the arm, which is pivotally connected, posture maintaining means for maintaining the duct side plate in the upright posture when the duct side plate in the lying posture is switched to the upright posture is provided. Further, a fitting for a decorative duct, wherein the bracket is provided with a play restricting means that comes into contact with or comes close to a part of the outer surface of the connecting member when the duct side plate is switched from the laid posture to the raised posture.