JP4022734B2

JP4022734B2 - Bar-shaped strain relief device

Info

Publication number: JP4022734B2
Application number: JP2002141280A
Authority: JP
Inventors: 正己中西
Original assignee: Daifuku Co Ltd
Current assignee: Daifuku Co Ltd
Priority date: 2002-05-16
Filing date: 2002-05-16
Publication date: 2007-12-19
Anticipated expiration: 2022-05-16
Also published as: JP2003334613A

Description

【０００１】
【発明の属する技術分野】
本発明は、運搬用台車の荷台周囲に立設されるパネル等を構成している棒状部材の変形を矯正する歪み取り装置に関するものである。
【０００２】
【従来の技術】
運搬用台車の一例を図８に基づいて説明すると、四隅下側に移動用車輪４１を備えた荷台４２の三側辺に背パネル４３と左右両側パネル４４，４５とを立設し、前面には、着脱又は係脱自在な連結バー４６が架設された運搬用台車４７が知られている。具体的には、前記荷台４２は、着脱自在か又はパネル４３〜４５の内の１つの内側に重ねるように折り畳み可能に支持され、左右両側パネル４４，４５の内、少なくとも１つは、背パネル４３の内側に重ねるように折り畳み可能に支承される。
【０００３】
例えば上記のような構成の運搬用台車４７に使用されている各パネル４３〜４５は、主として台車全体の軽量化を図るために、パイプ材や形鋼等で形成された周囲枠４８と、この周囲枠４８に架設された複数段の横桟４９と、当該横桟４９と交差するように周囲枠４８に架設された複数本の縦桟５０とで格子状に構成されるのが一般的である。
【０００４】
【発明が解決しようとする課題】
上記のような運搬用台車等に使用されている格子構造のパネル４３〜４５は、トラック輸送時等においてロープ掛けにより固定されるようなとき、ロープの締め過ぎによりパネル４３〜４５の周囲枠４８等が内側に変形する場合が多い。このようなパネルの変形が生じたとき、従来は、手で周囲枠等の変形した箇所を外向きに引っ張ったり、ハンマーで外向きに打ち叩く等して、変形を元に戻す作業が行われていたが、その作業は作業者に多大の労力を強いるにもかかわらず、満足し得るような結果を得ることは容易でなかった。
【０００５】
勿論、他物がパネル４３〜４５の上に落下する等してパネル４３〜４５に下向きに過大外力が作用したような場合は、パネル４３〜４５の周囲枠４８等が外向きに湾曲変形することも考えられるが、このようなときも、その変形箇所を元に戻す作業は上記と同じ要領で行われていた。
【０００６】
【課題を解決するための手段】
本発明は上記のような従来の問題点を解消し得る棒状部材の歪み取り装置を提供することを目的とするものであって、請求項１に記載の発明では、後述する実施形態の参照符号を付して示すと、棒状本体１と、この棒状本体１に取り付けられたネジ式ジャッキ２と、このジャッキ２と前記棒状本体１の一端との間で当該棒状本体１の長さ方向に離れた２カ所に取り付けられた一対の当て部材７Ａ，７Ｂと、前記ジャッキ２と前記棒状本体１の他端との間で当該棒状本体１に取り付けられた第三当て部材７Ｃとから成り、当該一対の当て部材７Ａ，７Ｂの内、前記ジャッキ２に近い第一当て部材７Ａと前記第三当て部材７Ｃには、前記ジャッキ２の先端金具６による被矯正棒状部材Ｐの押し引き矯正方向に対し逆向きに当該被矯正棒状部材Ｐを受ける受け部１３又は１４が設けられ、前記ジャッキ２から遠い第二当て部材７Ｂには、前記ジャッキ２の先端金具６による被矯正棒状部材Ｐの押し引き矯正方向と同一向きに当該被矯正棒状部材Ｐを受ける受け部１４又は１３が設けられ、この第二当て部材７Ｂは、前記棒状本体１から抜き取り可能に構成されている。
【０００７】
又、請求項２に記載の発明では、棒状本体１と、この棒状本体１に取り付けられたネジ式ジャッキ２と、このジャッキ２と前記棒状本体１の一端との間で当該棒状本体１の長さ方向に離れた２カ所に取り付けられた一対の当て部材７Ａ，７Ｂと、前記ジャッキ２と前記棒状本体１の他端との間で当該棒状本体１に取り付けられた第三当て部材７Ｃとから成り、当該一対の当て部材７Ａ，７Ｂの内、前記ジャッキ２に近い第一当て部材７Ａと前記第三当て部材７Ｃには、前記ジャッキ２の先端金具６による被矯正棒状部材Ｐの押し引き矯正方向に対し逆向きに当該被矯正棒状部材Ｐを受ける受け部１３又は１４が設けられ、前記ジャッキ２から遠い第二当て部材７Ｂには、前記ジャッキ２の先端金具６による被矯正棒状部材Ｐの押し引き矯正方向と同一向きに当該被矯正棒状部材Ｐを受ける受け部１４又は１３が設けられ、前記第三当て部材７Ｃは、前記棒状本体１から抜き取り可能に構成される。
【０００８】
上記請求項１又は２に記載の本発明を実施するについて、具体的には、請求項３に記載のように、前記ジャッキ先端金具６には、被矯正棒状部材Ｐに対し引き方向に係合する引き係合部８を設け、前記第一当て部材７Ａと第三当て部材７Ｃには、被矯正棒状部材Ｐを押し方向に受ける押し受け部１３を設け、前記第二当て部材７Ｂには、被矯正棒状部材Ｐを引き方向に受ける引き係合部１４を設けることができるし、この逆に、請求項４に記載のように、前記ジャッキ先端金具６には、被矯正棒状部材Ｐに対し押し方向に係合する押し係合部１５を設け、前記第一当て部材７Ａと第三当て部材７Ｃには、被矯正棒状部材Ｐを引き方向に受ける引き受け部１４を設け、前記第二当て部材７Ｂには、被矯正棒状部材Ｐを押し方向に受ける押し係合部１３を設けることができる。
【０００９】
又、請求項５に記載のように前記ジャッキ２の先端金具６に、被矯正棒状部材Ｐに対し押し方向に係合する押し係合部１５と引き方向に係合する引き係合部８とを設けると共に、前記各当て部材７Ａ〜７Ｃにも、被矯正棒状部材Ｐを引き方向に受ける引き受け部１４と押し方向に受ける押し受け部１３とを設けることができる。
【００１０】
更に、何れの構成を採用する場合でも、請求項６に記載のように、各当て部材７Ａ〜７Ｃは、棒状本体１の長さ方向に位置変更固定自在に取り付けるのが望ましい。
【００１１】
【発明の実施の形態】
最初に本発明の基礎となった参考例を添付図の図１〜図４に基づいて説明すると、図１〜図３に示す第一参考例において、１は角パイプ利用の棒状本体であり、その長さ方向の一端寄り位置にネジ式ジャッキ２が取り付けられている。当該ジャッキ２は、棒状本体１に固着されたナット３を利用して構成した貫通ネジ孔に、棒状本体１の長さ方向に対し直角向きに螺合貫通させたネジ軸４と、このネジ軸４の外端に直角向きに取り付けられたハンドルバー５と、ネジ軸４の内端に、当該ネジ軸４の軸心の周りに相対回転自在に取り付けられた先端金具６とから構成されている。又、棒状本体１には、ジャッキ２と棒状本体１の一端との間で棒状本体１の長さ方向に移動固定自在な第一当て部材７Ａと第二当て部材７Ｂとが取り付けられている。
【００１２】
前記ジャッキ２の先端金具６には、棒状本体１と平行な向きの棒状部材Ｐをネジ軸４の軸心延長線上で引っ掛けて棒状本体１の方へ引き寄せるための角フック形の引き係合部８が設けられている。第一第二各当て部材７Ａ，７Ｂは、棒状本体１に移動のみ可能に外嵌され且つ固定ボルト９により任意位置で棒状本体１に固定できる摺動体１０と、この摺動体１０から前記ジャッキ２の先端金具６のある側に突設された支柱部材１１と、この支柱部材１１の先端に固着された先端金具１２とから成るもので、第一当て部材７Ａの先端金具１２には、棒状本体１と平行な向きの棒状部材Ｐに嵌合して当該棒状部材Ｐを棒状本体１から遠ざける押し方向に受けるコの字形の押し受け部１３が形成され、第二当て部材７Ｂの先端金具１２には、棒状本体１と平行な向きの棒状部材Ｐに嵌合して当該棒状部材Ｐを棒状本体１側に引き寄せる方向に受ける角フック形の引き受け部１４が形成されている。
【００１３】
使用方法について説明すると、図１に示すように、ジャッキ２の先端金具６を両当て部材７Ａ，７Ｂの先端金具１２の各受け部１３，１４を結ぶ線より適当量だけ外側（棒状本体２のある側とは反対側）に進出させた状態で、遊端部が一側方へ湾曲又は折曲変形している棒状部材Ｐの当該変形領域に対し、ジャッキ２の先端金具６の角フック形引き係合部８を引っ掛ける。そして棒状本体１を棒状部材Ｐと平行な向きにして、第一当て部材７Ａの先端金具１２のコの字形押し受け部１３を棒状部材Ｐの変形領域の始端部付近に嵌合させると共に、第二当て部材７Ｂの先端金具１２の角フック形引き受け部１３を棒状部材Ｐの変形領域から離れた適当箇所に嵌合させる。係る状態でハンドルバー５を利用してジャッキ２のネジ軸４を引き込み方向に回転操作し、当該ジャッキ２の先端金具６を棒状本体１の側へ引き寄せる。この結果、棒状部材Ｐの変形領域の始端部付近、即ち、第一当て部材７Ａの押し受け部１３との当接箇所を支点にして棒状部材Ｐに回転力が与えられるが、その回転力が第二当て部材７Ｂの引き受け部１４で受け止められるので、結局、棒状部材Ｐの変形領域が、ジャッキ２の角フック形引き係合部８によって、第一当て部材７Ａの押し受け部１３との当接箇所を支点にして棒状本体１側へ曲げられる。従って、棒状部材Ｐの変形領域が第一第二両当て部材７Ａ，７Ｂで受けられている直線領域の延長線上又はその付近に達するまでジャッキ２の先端金具６を棒状本体１の側へ引き寄せることにより、棒状部材Ｐの遊端部の変形領域の変形を矯正して棒状部材Ｐの全体を元の直線状又はそれに近い状態に戻すことができる。
【００１４】
棒状部材Ｐの遊端部の変形領域の変形を矯正して元の直線状に戻し終えたならば、ジャッキ２のネジ軸４を逆回転させて先端金具６を棒状本体１から遠ざける方向に戻すことにより、棒状部材Ｐからジャッキ２及び当て部材７Ａ，７Ｂを外すことができる。尚、各当て部材７Ａ，７Ｂの位置や両当て部材７Ａ，７Ｂ間の間隔は、固定ボルト９を弛めた状態で摺動体１０を棒状本体１に沿って移動させ、位置調整後に固定ボルト９を締結して摺動体１０を棒状本体１に固定する方法で、棒状部材Ｐの変形領域の長さに応じて調整することができる。
【００１５】
上記第一参考例の装置は、遊端部が湾曲又は折曲変形している棒状部材Ｐに対し、その変形領域の曲げ矯正方向側に棒状本体１を配置し、当該棒状部材Ｐの変形領域をジャッキ２で引き寄せて直線状に矯正するものであるが、図４に示すように、当該棒状部材Ｐに対し、その変形領域の曲げ矯正方向側とは反対側に棒状本体１を配置し、当該棒状部材Ｐの変形領域をジャッキ２で押圧して直線状に矯正することができるように構成することも考えられる。
【００１６】
即ち、図４に示す第二参考例では、ジャッキ２の先端金具６には、棒状本体１と平行な向きの棒状部材Ｐをネジ軸４の軸心延長線上で棒状本体１から離れる方向に押し出すためのコの字形の押し係合部１５が設けられ、ジャッキ２に近い側の第一当て部材７Ａの先端金具１２には、図１に示した第二当て部材７Ｂの先端金具１２の引き受け部１４と同一の角フック形の引き受け部１４が設けられ、第二当て部材７Ｂの先端金具１２には、図１に示した第一当て部材７Ａの先端金具１２の押し受け部１３と同一のコの字形の押し受け部１３が設けられることになる。具体的には、図１に示した参考例の第一第二両当て部材７Ａ，７Ｂを一旦棒状本体１から抜き取り、順序を逆にして再度棒状本体１に装着し、ジャッキ２の先端金具６のみを、引き係合部８を有するものから押し係合部１５を有するものに交換することにより、構成することができる。
【００１７】
次に本発明の好適実施形態を図５〜図７に基づいて説明すると、図５に示す第一実施形態では、第一参考例における棒状本体１を、ジャッキ２に対し第一当て部材７Ａのある側とは反対側へ長くし、当該棒状本体１のジャッキ２に対し第一当て部材７Ａのある側とは反対側に、第一当て部材７Ａと同一の第三当て部材７Ｃを取り付けている。この構成によれば、長さ方向の中間部が一側方へ突出するように変形している棒状部材Ｐの当該変形領域を曲げ矯正することができる。即ち、棒状本体１を棒状部材Ｐの変形領域の曲げ矯正側に配置して、ジャッキ２の先端金具６（引き係合部８）を棒状部材Ｐの変形領域の中央部に係合させると共に、第一当て部材７Ａの先端金具１２（押し受け部１３）と第三当て部材７Ｃの先端金具１２（押し受け部１３）とを、棒状部材Ｐの変形領域の両端部に係合させ、係る状態でジャッキ２の先端金具６を棒状本体１側へ移動させることにより、第一第三両当て部材７Ａ，７Ｃ間の棒状部材Ｐの変形領域の中央部を棒状本体１側へ引き寄せ、当該棒状部材Ｐの変形領域を直線状に曲げ矯正することができる。
【００１８】
この第一実施形態では、上記のように第三当て部材７Ｃを使用する場合、第二当て部材７Ｂは使用しないので、棒状本体１から抜き取っておくことができる。勿論、第三当て部材７Ｃを使用する際に第二当て部材７Ｂが邪魔にならなければ、棒状本体１に取り付けたままにしておいても良い。又、第一参考例のように、第一第二両当て部材７Ａ，７Ｂを使用して棒状部材Ｐの遊端部の変形領域の曲げ矯正作業を行うときは、第三当て部材７Ｃを棒状本体１から抜き取っておいても良い。
【００１９】
図６に示す本発明の第二実施形態では、第二参考例における棒状本体１を、ジャッキ２に対し第一当て部材７Ａのある側とは反対側へ長くし、当該棒状本体１のジャッキ２に対し第一当て部材７Ａのある側とは反対側に、第一当て部材７Ａと同一の第三当て部材７Ｃを取り付けている。この第二実施形態の装置でも、第一実施形態と同様に、長さ方向の中間部が一側方へ突出するように変形している棒状部材Ｐの当該変形領域を曲げ矯正することができる。即ち、棒状本体１を棒状部材Ｐの変形領域の曲げ矯正側とは反対側に配置して、ジャッキ２の先端金具６（押し係合部１５）を棒状部材Ｐの変形領域の中央部に係合させると共に、第一当て部材７Ａの先端金具１２（引き受け部１４）と第三当て部材７Ｃの先端金具１２（引き受け部１４）とを、棒状部材Ｐの変形領域の両端部に係合させ、係る状態でジャッキ２の先端金具６を棒状本体１から遠ざける側へ移動させることにより、第一第三両当て部材７Ａ，７Ｃ間の棒状部材Ｐの変形領域の中央部を棒状本体１から離れる方向に押し出し、当該棒状部材Ｐの変形領域を直線状に曲げ矯正することができる。
【００２０】
この第二実施形態においても、上記のように第三当て部材７Ｃを使用する場合、第二当て部材７Ｂは使用しないので、棒状本体１から抜き取っておくことができる。勿論、第三当て部材７Ｃを使用する際に第二当て部材７Ｂが邪魔にならなければ、棒状本体１に取り付けたままにしておいても良い。又、第二参考例のように、第一第二当て部材７Ａ，７Ｂを使用して棒状部材Ｐの遊端部の変形領域の曲げ矯正作業を行うときは、第三当て部材７Ｃを棒状本体１から抜き取っておいても良い。
【００２１】
第一実施形態と第二実施形態とを同一構造の装置で実施するためには、図７に示すように、ジャッキ２として、その先端金具６に内向きの引き係合部８と外向きの押し係合部１５とを、押し係合部１５が外側になるように連設したものを使用すると共に、当て部材７Ａ，７Ｂ又は当て部材７Ａ〜７Ｃとして、その先端金具１２に内向きの引き受け部１４と外向きの押し受け部１３とを、押し受け部１３が外側になるように連設したものを使用すれば良い。
【００２２】
【発明の効果】
本発明の棒状部材の歪み取り装置は以上のように実施し且つ使用することができるものであって、係る本発明の請求項１又は２に記載の装置によれば、図８に示すような運搬用台車の周囲のパネルを構成する棒状部材の遊端部の湾曲又は折曲変形を矯正するときは、当該棒状部材の変形領域にジャッキの先端金具を係合させ、第一当て部材を当該棒状部材の変形領域の始端部付近に係合させると共に、第二当て部材を当該棒状部材の変形領域から離れた適当位置に係合させ、又、パネルの周囲枠の中間部が内向きに湾曲又は折曲変形している場合には、当該棒状部材の変形領域の中央部にジャッキの先端金具を係合させ、第一当て部材と第三当て部材とを当該棒状部材の変形領域の両端部付近に係合させた状態で、ジャッキを操作することにより、当該ジャッキの先端金具で棒状部材の変形領域を曲げ矯正方向に押し出し又は引き寄せて、当該棒状部材の変形領域の変形を直線状又はこれに近い状態に矯正することができる。
【００２３】
即ち、本発明装置を使用することにより、前記パネルを構成する棒状部材の遊端部だけでなく、中間部の湾曲又は折曲変形をネジ式ジャッキの操作だけで簡単容易に矯正することができ、変形したパネルを現場で簡単に原形又はそれに近い状態に復元させて、見栄え良く且つ安全に活用することができる。しかも請求項１に記載の本発明によれば、棒状部材の中間部の湾曲又は折曲変形を矯正するときに邪魔になる第二当て部材は取り外すことができ、請求項２に記載の本発明によれば、棒状部材の遊端部の湾曲又は折曲変形を矯正するときに邪魔になる第三当て部材は取り外すことができるので、それぞれの作業を容易に行える。
【００２４】
尚、請求項３に記載の構成によれば、パネルの周囲枠の遊端部（上端部）又は中間部が内向きに湾曲又は折曲変形している場合に、その周囲枠の変形の矯正作業を、当該パネルの外側に本発明装置を配置した状態で容易に行うことができる。
【００２５】
又、請求項４に記載の構成によれば、パネルの周囲枠の遊端部（上端部）又は中間部が外向きに湾曲又は折曲変形している場合に、その周囲枠の変形の矯正作業を、当該パネルの外側に本発明装置を配置した状態で容易に行うことができる。
【００２６】
又、請求項５に記載の構成によれば、請求項３に記載の装置に適合する矯正作業と請求項４に記載の装置に適合する矯正作業の何れをも１台の装置で選択的に行うことができる。
【００２７】
更に、請求項６に記載の構成によれば、変形を矯正すべき棒状部材の変形領域の長さや位置に応じて当て部材の間隔や位置を変更して、常に効率よく効果的に変形の矯正作業を行うことができる。
【図面の簡単な説明】
【図１】第一参考例に係る装置の使用状態を示す一部縦断側面図である。
【図２】同装置のネジ式ジャッキを示す縦断側面図である。
【図３】Ａ図は同装置の第一当て部材を示す縦断側面図であり、Ｂ図は同装置の第二当て部材を示す縦断側面図である。
【図４】第二参考例に係る装置の使用状態を示す一部縦断側面図である。
【図５】本発明の第一実施形態に係る装置の使用状態を示す側面図である。
【図６】本発明の第二実施形態に係る装置の使用状態を示す側面図である。
【図７】Ａ図は当て部材の変形例を示す縦断側面図であり、Ｂ図はジャッキの変形例を示す縦断側面図である。
【図８】本発明装置で矯正作業を行うことができる搬送用台車を示す斜視図である。
【符号の説明】
１角パイプ利用の棒状本体
２ネジ式ジャッキ
４ネジ軸
５ハンドルバー
６ジャッキ先端金具
７Ａ〜７Ｃ当て部材
８ジャッキ先端金具の引き係合部
９固定ボルト
１０摺動体
１１支柱部材
１２当て部材先端金具
１３当て部材先端金具の押し受け部
１４当て部材先端金具の引き受け部
１５ジャッキ先端金具の押し係合部
４３〜４５搬送用台車のパネル
４８パネル周囲枠
Ｐ矯正される棒状部材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a strain relief device that corrects deformation of a bar-like member that constitutes a panel or the like that is erected around a loading platform of a transport carriage.
[0002]
[Prior art]
An example of the transport cart will be described with reference to FIG. 8. A back panel 43 and left and right side panels 44, 45 are erected on the three sides of a cargo bed 42 having moving wheels 41 at the lower corners, and on the front surface. There is known a transport carriage 47 on which a connecting bar 46 that can be attached or detached is detachable. Specifically, the loading platform 42 is detachably supported or foldably supported so as to overlap one of the panels 43 to 45, and at least one of the left and right side panels 44 and 45 is a back panel. 43 is foldably supported so as to overlap the inner side of 43.
[0003]
For example, each of the panels 43 to 45 used in the transporting carriage 47 configured as described above includes a peripheral frame 48 formed of a pipe material, a shape steel, and the like, in order to mainly reduce the weight of the entire carriage. Generally, a plurality of horizontal rails 49 installed on the peripheral frame 48 and a plurality of vertical rails 50 installed on the peripheral frame 48 so as to intersect the horizontal rails 49 are configured in a lattice shape. is there.
[0004]
[Problems to be solved by the invention]
When the lattice-structured panels 43 to 45 used in the above-described transportation carts are fixed by rope hanging during truck transportation or the like, the surrounding frames 48 of the panels 43 to 45 are caused by excessive tightening of the ropes. Are often deformed inward. When such deformation of the panel occurs, conventionally, an operation to undo the deformation is performed by manually pulling the deformed portion such as the peripheral frame outward or hitting it outward with a hammer. However, although the work puts a lot of labor on the operator, it was not easy to obtain a satisfactory result.
[0005]
Of course, when an excessive external force acts downward on the panels 43 to 45 due to other objects falling on the panels 43 to 45, the peripheral frame 48 etc. of the panels 43 to 45 are curved and deformed outward. Although it is conceivable, even in such a case, the work of returning the deformed portion to the original was performed in the same manner as described above.
[0006]
[Means for Solving the Problems]
An object of the present invention is to provide a rod-shaped member distortion removing device that can solve the above-described conventional problems. In the invention described in claim 1, reference numerals of embodiments to be described later are provided. , The rod-shaped main body 1, the screw-type jack 2 attached to the rod-shaped main body 1, and the jack 2 and one end of the rod-shaped main body 1 are separated in the length direction of the rod-shaped main body 1. A pair of abutting members 7A and 7B attached at two locations, and a third abutting member 7C attached to the rod-shaped main body 1 between the jack 2 and the other end of the rod-shaped main body 1. Among the contact members 7A and 7B, the first contact member 7A and the third contact member 7C close to the jack 2 are opposite to the direction in which the rod-like member P to be corrected by the end fitting 6 of the jack 2 is corrected. The straightened rod-shaped member P in the direction A receiving portion 13 or 14 is provided, and the second abutting member 7B far from the jack 2 has the rod-like member to be corrected in the same direction as the push-pull correction direction of the rod-like member P to be corrected by the end fitting 6 of the jack 2. A receiving portion 14 or 13 for receiving P is provided, and the second abutting member 7B is configured to be detachable from the rod-shaped main body 1.
[0007]
In the invention according to claim 2, the length of the rod-shaped main body 1 is between the rod-shaped main body 1, the screw-type jack 2 attached to the rod-shaped main body 1, and the jack 2 and one end of the rod-shaped main body 1. From a pair of contact members 7A and 7B attached at two locations separated in the vertical direction, and a third contact member 7C attached to the rod-shaped main body 1 between the jack 2 and the other end of the rod-shaped main body 1 Of the pair of the abutting members 7A, 7B, the first abutting member 7A and the third abutting member 7C close to the jack 2 have a push-pull correction of the rod-shaped member P to be corrected by the end fitting 6 of the jack 2. A receiving portion 13 or 14 for receiving the straight member P to be corrected is provided in the direction opposite to the direction, and the second contact member 7B far from the jack 2 is provided with a rod-like member P to be straightened by the end fitting 6 of the jack 2. Push-pull correction Receiving section 14 or 13 receives the to be straightened rod-like member P is provided in the same direction and, the third contact member 7C is withdrawn configured to allow from the rod-like body 1.
[0008]
In carrying out the present invention described in claim 1 or 2, specifically, as described in claim 3, the jack end fitting 6 is engaged with the rod-shaped member P to be corrected in the pulling direction. The first abutting member 7A and the third abutting member 7C are provided with a receiving portion 13 that receives the straight bar member P in the pushing direction, and the second abutting member 7B A pulling engagement portion 14 that receives the straight member P to be corrected in the pulling direction can be provided, and conversely, as shown in claim 4, the jack end fitting 6 has a pulling engagement portion 14 with respect to the straight member P to be corrected. A push engaging portion 15 that engages in the pushing direction is provided, and the first abutting member 7A and the third abutting member 7C are provided with a receiving portion 14 that receives the rod-like member P to be corrected in the pulling direction, and the second abutting member 7B includes a push engagement for receiving the straight rod member P in the push direction. 13 can be provided.
[0009]
Further, as described in claim 5, the front end fitting 6 of the jack 2 has a push engaging portion 15 that engages the rod-like member P to be corrected in the pushing direction and a pull engaging portion 8 that engages in the pulling direction. In addition, each of the contact members 7A to 7C can be provided with a receiving portion 14 that receives the straight rod-shaped member P in the pulling direction and a pressing portion 13 that receives the pressing member 13 in the pressing direction.
[0010]
Further, in any case, it is desirable that each of the contact members 7A to 7C is attached so as to be freely position-changeable in the length direction of the rod-shaped main body 1, as described in claim 6.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
First, a reference example that is the basis of the present invention will be described with reference to FIGS. 1 to 4 of the attached drawings. In the first reference example shown in FIGS. A screw-type jack 2 is attached to a position near one end in the length direction. The jack 2 includes a screw shaft 4 screwed and penetrated through a through screw hole formed by using a nut 3 fixed to the rod-shaped main body 1 in a direction perpendicular to the length direction of the rod-shaped main body 1, and the screw shaft. The handle bar 5 is attached to the outer end of the screw 4 at a right angle, and the end fitting 6 is attached to the inner end of the screw shaft 4 so as to be relatively rotatable around the axis of the screw shaft 4. . Further, a first abutting member 7A and a second abutting member 7B that are movable and fixed in the length direction of the rod-shaped main body 1 between the jack 2 and one end of the rod-shaped main body 1 are attached to the rod-shaped main body 1.
[0012]
The end fitting 6 of the jack 2 has a square hook-shaped pull engaging portion for hooking a rod-shaped member P oriented parallel to the rod-shaped main body 1 on the extension line of the screw shaft 4 toward the rod-shaped main body 1. 8 is provided. The first and second respective abutting members 7A and 7B are externally fitted to the rod-shaped main body 1 so as to be movable only, and can be fixed to the rod-shaped main body 1 at arbitrary positions by fixing bolts 9, and the jack 2 The support member 11 is provided on the side of the support member 6 and the support member 12 is fixed to the end of the support member 11. A U-shaped press receiving portion 13 is formed which is fitted to a rod-shaped member P oriented in parallel with the rod 1 and receives the rod-shaped member P in a pushing direction away from the rod-shaped main body 1, and is formed on the end fitting 12 of the second abutting member 7B. Is formed with a square hook-shaped receiving portion 14 that is fitted to a rod-shaped member P in a direction parallel to the rod-shaped main body 1 and receives the rod-shaped member P in the direction of pulling the rod-shaped member P toward the rod-shaped main body 1 side.
[0013]
The method of use will be described. As shown in FIG. 1, the end fitting 6 of the jack 2 is outside by a suitable amount from the line connecting the receiving portions 13 and 14 of the tip fitting 12 of the both-contact members 7A and 7B (the rod-shaped main body 2). In a state where the free end portion is bent or bent to one side in a state where it is advanced to the side opposite to a certain side), the square hook shape of the end fitting 6 of the jack 2 is against the deformation region of the rod-like member P. The pull engagement portion 8 is hooked. Then, the rod-shaped main body 1 is oriented parallel to the rod-shaped member P, and the U-shaped presser receiving portion 13 of the tip fitting 12 of the first abutting member 7A is fitted near the start end portion of the deformation region of the rod-shaped member P. The square hook-shaped receiving portion 13 of the tip fitting 12 of the two-contact member 7B is fitted at an appropriate location away from the deformation region of the rod-shaped member P. In this state, the handlebar 5 is used to rotate the screw shaft 4 of the jack 2 in the pulling direction, and the tip metal fitting 6 of the jack 2 is pulled toward the bar-shaped main body 1 side. As a result, a rotational force is applied to the rod-shaped member P with the vicinity of the start end of the deformation region of the rod-shaped member P, that is, the contact portion of the first contact member 7A with the receiving portion 13 as a fulcrum. Since it is received by the receiving portion 14 of the second abutting member 7B, the deformation region of the rod-shaped member P is eventually brought into contact with the pressing portion 13 of the first abutting member 7A by the square hook-shaped pulling engaging portion 8 of the jack 2. It is bent toward the rod-shaped main body 1 with the contact point as a fulcrum. Therefore, the tip metal fitting 6 of the jack 2 is pulled toward the rod-shaped main body 1 until the deformation region of the rod-shaped member P reaches the extension line of the linear region received by the first second contact members 7A and 7B or the vicinity thereof. Thus, the deformation of the deformation region of the free end portion of the rod-shaped member P can be corrected and the entire rod-shaped member P can be returned to the original linear shape or a state close thereto.
[0014]
When the deformation of the deformation region of the free end portion of the rod-shaped member P is corrected and returned to the original linear shape, the screw shaft 4 of the jack 2 is reversely rotated to return the tip fitting 6 in the direction away from the rod-shaped main body 1. Thus, the jack 2 and the abutting members 7A and 7B can be removed from the rod-shaped member P. The positions of the respective abutting members 7A and 7B and the distance between the both abutting members 7A and 7B are determined by moving the sliding body 10 along the rod-shaped main body 1 with the fixing bolt 9 loosened, and adjusting the position after the position adjustment. Can be adjusted according to the length of the deformation region of the rod-shaped member P by fastening the sliding body 10 to the rod-shaped main body 1.
[0015]
In the apparatus of the first reference example, the rod-shaped body 1 is disposed on the bending correction direction side of the deformation region of the rod-shaped member P whose free end portion is curved or bent, and the deformation region of the rod-shaped member P Is drawn straight with a jack 2 and straightened, as shown in FIG. 4, with respect to the rod-shaped member P, the rod-shaped main body 1 is disposed on the opposite side of the deformation region to the bending correction direction side, It is also conceivable that the deformation area of the rod-shaped member P is pressed with the jack 2 and can be straightened.
[0016]
That is, in the second reference example shown in FIG. 4, the rod-shaped member P oriented in parallel with the rod-shaped main body 1 is pushed out to the end fitting 6 of the jack 2 in the direction away from the rod-shaped main body 1 on the axial extension line of the screw shaft 4. A U-shaped push engaging portion 15 is provided, and the leading end fitting 12 of the first abutting member 7A on the side close to the jack 2 is provided with a receiving portion of the leading end fitting 12 of the second abutting member 7B shown in FIG. 14 is provided, and the end fitting 12 of the second abutting member 7B is provided with the same core as the pressing portion 13 of the end fitting 12 of the first abutting member 7A shown in FIG. A shaped receiving portion 13 is provided. Specifically, the first and second contact members 7A and 7B of the reference example shown in FIG. 1 are temporarily extracted from the rod-shaped main body 1 and are attached to the rod-shaped main body 1 again in the reverse order. Can be configured by replacing the one having the pull engagement portion 8 with the one having the push engagement portion 15.
[0017]
Next, a preferred embodiment of the present invention will be described with reference to FIGS. 5 to 7. In the first embodiment shown in FIG. 5, the rod-like main body 1 in the first reference example is connected to the jack 2 by the first abutting member 7 </ b> A. The third abutting member 7C, which is the same as the first abutting member 7A, is attached to the side opposite to the side where the first abutting member 7A is located with respect to the jack 2 of the rod-shaped main body 1 and is elongated to the opposite side. . According to this configuration, the deformation region of the rod-shaped member P that is deformed so that the intermediate portion in the length direction protrudes to one side can be bent and corrected. That is, the rod-shaped main body 1 is disposed on the bending correction side of the deformation region of the rod-shaped member P, and the tip metal fitting 6 (the pull engagement portion 8) of the jack 2 is engaged with the central portion of the deformation region of the rod-shaped member P. The front end fitting 12 (press receiving portion 13) of the first abutting member 7A and the front end fitting 12 (press receiving portion 13) of the third abutting member 7C are engaged with both end portions of the deformation region of the rod-shaped member P, and this state is concerned. By moving the tip metal fitting 6 of the jack 2 to the bar-shaped main body 1 side, the central part of the deformation region of the bar-shaped member P between the first and third both-side contact members 7A, 7C is drawn to the bar-shaped main body 1 side. The deformation region of P can be straightened and straightened.
[0018]
In the first embodiment, when the third contact member 7C is used as described above, the second contact member 7B is not used, and therefore can be extracted from the rod-shaped main body 1. Of course, if the second contact member 7B does not get in the way when the third contact member 7C is used, it may be left attached to the rod-shaped main body 1. Further, as in the first reference example, when the bending correction operation is performed on the deformation region of the free end portion of the rod-shaped member P using the first and second both-contact members 7A and 7B, the third pad member 7C is rod-shaped. It may be extracted from the main body 1.
[0019]
In the second embodiment of the present invention shown in FIG. 6, the rod-shaped main body 1 in the second reference example is elongated to the side opposite to the side where the first abutting member 7 </ b> A is present with respect to the jack 2. On the other hand, a third abutting member 7C identical to the first abutting member 7A is attached to the side opposite to the side where the first abutting member 7A is present. Even in the apparatus according to the second embodiment, similarly to the first embodiment, the deformation region of the rod-shaped member P that is deformed so that the intermediate portion in the length direction protrudes to one side can be bent and corrected. . That is, the rod-shaped main body 1 is disposed on the side opposite to the bending correction side of the deformation region of the rod-shaped member P, and the tip fitting 6 (pushing engagement portion 15) of the jack 2 is engaged with the central portion of the deformation region of the rod-shaped member P. At the same time, the front end fitting 12 (accepting portion 14) of the first abutting member 7A and the end fitting 12 (accepting portion 14) of the third abutting member 7C are engaged with both ends of the deformation region of the rod-shaped member P, In this state, by moving the end fitting 6 of the jack 2 to the side away from the rod-shaped main body 1, the center portion of the deformation region of the rod-shaped member P between the first and third abutting members 7 </ b> A and 7 </ b> C is separated from the rod-shaped main body 1. The deformation region of the rod-shaped member P can be straightened and straightened.
[0020]
Also in the second embodiment, when the third abutting member 7C is used as described above, the second abutting member 7B is not used, so that it can be removed from the rod-shaped main body 1. Of course, if the second contact member 7B does not get in the way when the third contact member 7C is used, it may be left attached to the rod-shaped main body 1. Further, as in the second reference example, when the first and second contact members 7A and 7B are used to perform a bending correction operation on the deformation region of the free end portion of the rod-shaped member P, the third contact member 7C is disposed on the rod-shaped body. It may be extracted from 1.
[0021]
In order to implement the first embodiment and the second embodiment with an apparatus having the same structure, as shown in FIG. 7, as the jack 2, the tip fitting 6 has an inward pulling engagement portion 8 and an outward direction. The push engagement portion 15 is connected to the push engagement portion 15 so that the push engagement portion 15 is on the outer side, and the end fitting 12 is inwardly received as the contact members 7A and 7B or the contact members 7A to 7C. What connected the part 14 and the outward pressing part 13 so that the pressing part 13 may become outside should just be used.
[0022]
【The invention's effect】
The rod-shaped member distortion removing apparatus of the present invention can be implemented and used as described above. According to the apparatus according to claim 1 or 2 of the present invention, as shown in FIG. When correcting the bending or bending deformation of the free end portion of the rod-shaped member constituting the panel around the transport carriage, the tip end fitting of the jack is engaged with the deformation region of the rod-shaped member, and the first contact member is Engage in the vicinity of the start end of the deformation area of the rod-shaped member, engage the second contact member at an appropriate position away from the deformation area of the rod-shaped member, and the middle portion of the peripheral frame of the panel curves inward Alternatively, when bent, the jack end fitting is engaged with the center of the deformation region of the rod-shaped member, and the first and third contact members are connected to both ends of the deformation region of the rod-shaped member. To operate the jack while engaged in the vicinity Ri can be extruded or drawn to the correct direction bending deformation region of the rod at the tip fitting of the jack, to correct the deformation of the deformable area of the bar-like member in a straight line or a state close thereto.
[0023]
That is, by using the device of the present invention, it is possible to easily and easily correct not only the free end portion of the rod-shaped member constituting the panel but also the bending or bending deformation of the intermediate portion only by operating the screw type jack. The deformed panel can be easily restored to the original shape or a state close to it in the field, and can be used with good appearance and safety. Moreover, according to the first aspect of the present invention, the second contact member that becomes an obstacle when correcting the bending or bending deformation of the intermediate portion of the rod-shaped member can be removed, and the second aspect of the present invention is described in the second aspect. According to this, since the third contact member that becomes an obstacle when correcting the bending or bending deformation of the free end portion of the rod-like member can be removed, each operation can be easily performed.
[0024]
In addition, according to the structure of Claim 3, when the free end part (upper end part) or intermediate part of the surrounding frame of a panel is curving or bending-deformed inward, correction | amendment of the deformation | transformation of the surrounding frame The work can be easily performed in a state where the device of the present invention is arranged outside the panel.
[0025]
Moreover, according to the structure of Claim 4, when the free end part (upper end part) or intermediate part of the surrounding frame of a panel is curving or bending-deformed outwardly, correction of the deformation of the surrounding frame The work can be easily performed in a state where the device of the present invention is arranged outside the panel.
[0026]
Moreover, according to the structure of Claim 5, both the correction work which adapts the apparatus of Claim 3 and the correction work which fits the apparatus of Claim 4 can be selectively performed with one apparatus. It can be carried out.
[0027]
Furthermore, according to the structure of Claim 6, the space | interval and position of an abutting member are changed according to the length and position of the deformation | transformation area | region of the rod-shaped member which should correct | amend a deformation | transformation, and it always corrects a deformation | transformation efficiently and effectively. Work can be done.
[Brief description of the drawings]
FIG. 1 is a partially longitudinal side view showing a use state of an apparatus according to a first reference example.
FIG. 2 is a longitudinal side view showing a screw jack of the apparatus.
FIG. 3A is a longitudinal side view showing a first contact member of the apparatus, and FIG. B is a longitudinal side view showing a second contact member of the apparatus.
FIG. 4 is a partially longitudinal side view showing a use state of an apparatus according to a second reference example.
FIG. 5 is a side view showing a usage state of the apparatus according to the first embodiment of the present invention.
FIG. 6 is a side view showing a usage state of the device according to the second embodiment of the present invention.
7A is a longitudinal side view showing a modified example of the abutting member, and FIG. B is a longitudinal side view showing a modified example of the jack.
FIG. 8 is a perspective view showing a transport carriage capable of performing correction work with the apparatus of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rod-shaped main body using a square pipe 2 Screw type jack 4 Screw shaft 5 Handlebar 6 Jack tip metal fittings 7A-7C Abutting member 8 Pulling engagement part 9 of a jack tip metal fitting Fixing bolt 10 Sliding body 11 Column member 12 Abutting member tip metal fitting 13 Abutting portion 14 of the abutting member front end fitting 15 A receiving portion 15 of the abutting member front end fitting 15 A jack engaging portion 43 to 45 of the jack end fitting panel 48 of the transporting carriage 48 A panel peripheral frame P A rod-like member to be corrected

Claims

A rod-shaped main body, a screw-type jack attached to the rod-shaped main body, and a pair of abutting members attached to the jack-shaped main body between two ends of the rod-shaped main body between the jack and one end of the rod-shaped main body; A third contact member attached to the rod-shaped main body between the jack and the other end of the rod-shaped main body, and of the pair of contact members, the first contact member and the third contact member close to the jack Is provided with a receiving portion for receiving the straight bar member in a direction opposite to the push-pull correction direction of the straight member by the tip fitting of the jack, and the second contact member far from the jack is provided with a receiving portion of the jack. receiving portion for receiving the object to be corrected bar-like member is provided, et al is the push-pull correction direction and the same direction of the straightening bar-like member by distal fitting, the second contact member is withdrawn capable of constituting from said rod-like body And it has, straightening device of the rod.

A rod-shaped main body, a screw-type jack attached to the rod-shaped main body, and a pair of abutting members attached to the jack-shaped main body between two ends of the rod-shaped main body between the jack and one end of the rod-shaped main body; A third contact member attached to the rod-shaped main body between the jack and the other end of the rod-shaped main body, and of the pair of contact members, the first contact member and the third contact member close to the jack Is provided with a receiving portion for receiving the straight bar member in a direction opposite to the push-pull correction direction of the straight member by the tip fitting of the jack, and the second contact member far from the jack is provided with a receiving portion of the jack. A receiving portion for receiving the straight rod member to be straightened is provided in the same direction as the push-pull correction direction of the straight rod member by the tip metal fitting, and the third contact member is configured to be detachable from the rod-shaped main body. And it has, straightening device of the rod.

The jack end fitting is provided with a pull engaging portion that engages with the straight bar member in the pulling direction, and the first and third pad members are pressed to receive the straight bar member in the pushing direction. The rod-shaped member distortion removing apparatus according to claim 1, wherein a receiving portion is provided, and the second abutting member is provided with a pulling engagement portion that receives the straight member to be corrected in the pulling direction .

The jack end fitting is provided with a push engaging portion that engages with the straight bar member in the push direction, and the first and third pad members receive the straight bar member in the pull direction. The rod member distortion removing device according to claim 1, wherein a pressing engagement portion that receives the straight member to be corrected in the pressing direction is provided on the second contact member.

A tip fitting of the jack is provided with a push engagement portion that engages in a push direction with respect to a straight member to be corrected, and a pull engagement portion that engages in a pull direction. The rod-shaped member distortion removing device according to any one of claims 1 to 4, wherein a receiving portion that receives the member in the pulling direction and a pressing portion that receives the member in the pressing direction are provided .

6. The strain relief device for a rod-shaped member according to claim 1, wherein each of the contact members is attached to be freely changeable in position in the length direction of the rod-shaped main body .