JP2010247296A

JP2010247296A - Cutting machine

Info

Publication number: JP2010247296A
Application number: JP2009100977A
Authority: JP
Inventors: Jiro Murata; 二郎村田; Tetsuhiro Iki; 徹弘壱岐; Katsuhei Omi; 勝平大見; Kazuyoshi Inagaki; 一芳稲垣
Original assignee: Omi Kogyo Co Ltd; Jiro Co Ltd
Current assignee: Omi Kogyo Co Ltd; Jiro Co Ltd
Priority date: 2009-04-17
Filing date: 2009-04-17
Publication date: 2010-11-04

Abstract

<P>PROBLEM TO BE SOLVED: To miniaturize a cutting machine while only aiming at a cutting machine for cutting and removing a projected and remained article to be cut from a standing column. <P>SOLUTION: The cutting machine includes a cutting unit 17 capable of being moved by own weight along a guide rail laid between an upper support base 8 and a lower support base 12 fixed to an iron frame column 1. The cutting unit 17 includes a slider 18 movably supported relative to the guide rail 16; a bracket 19 fixed to the slider 18; a drive roller 20 supported on the bracket 19, a driven roller 21 and a drive motor 22; and an endless-like band saw 23 laid between the drive roller 20 and the driven roller 21. In a movement allowance space S, the drive roller 20 and the drive motor 22 are arranged at one side of both left and right sides relative to the guide rail 16, and the driven roller 21 is arranged at the other side. The support plate projected from the iron frame column 1 is cut by the endless-like band saw 23 accompanying with descending of the cutting unit 17. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、建築施工時に各種目的で建築物の鉄骨柱などの柱から突出して残る被切断物を切断して除去するための切断機に関するものである。 The present invention relates to a cutting machine for cutting and removing an object to be cut that remains protruding from a pillar such as a steel pillar of a building for various purposes during construction.

従来、この種の切断機においては、取付フレームの四隅に取付脚が取着された取付台で、その取付フレームに対し横方向へ移動可能に支持された本体フレームには、取付フレームの上方で駆動モータにより回転する駆動ローラが支持されているとともに、取付フレームの下方で従動ローラが支持され、各取付脚間で横方向へ架設された回転軸がハンドルにより回転して本体フレームが回転軸に沿って横方向へ移動すると、この駆動ローラと従動ローラとの間で縦方向へ掛け渡されたバンドソーは、横方向へ寝かされた鉄骨柱に沿って横方向へ移動し、鉄骨柱の被切断物を切断して除去することができる（特許文献１参照）。 Conventionally, in this type of cutting machine, a mounting base with mounting legs attached to the four corners of the mounting frame, and a main body frame supported so as to be movable laterally with respect to the mounting frame, are located above the mounting frame. A driving roller that is rotated by a driving motor is supported, and a driven roller is supported below the mounting frame. A rotating shaft installed horizontally between the mounting legs is rotated by a handle so that the main body frame becomes a rotating shaft. The band saw that is stretched between the driving roller and the driven roller in the longitudinal direction moves laterally along the steel column laid down in the lateral direction, and the steel column covered The cut product can be cut and removed (see Patent Document 1).

特開２００６−２６６００３号公報JP 2006-266003 A

上記の切断機は、立てた鉄骨柱にも利用することはできるが、ハンドルにより回転する回転軸を駆動ローラと従動ローラとの間で取付台に支持する必要があるため、駆動ローラと従動ローラとの間の寸法が大きくなって取付台が大型化する問題があった。 Although the above cutting machine can be used for an upright steel column, it is necessary to support a rotating shaft rotated by a handle on a mounting base between a driving roller and a driven roller. There is a problem that the size of the mounting base becomes larger and the mounting base becomes larger.

この発明は、立てた柱から突出して残る被切断物を切断して除去するための切断機のみに着目して、切断機を小型化することを目的としている。 An object of the present invention is to reduce the size of the cutting machine by paying attention only to the cutting machine for cutting and removing the object to be cut protruding remaining from the standing pillar.

後記実施形態の図面（図１〜１２）の符号を援用して本発明を説明する。
請求項１の発明にかかる切断機は、下記のように構成されている。
この切断機は、柱１に固定される上側支持台８と下側支持台１２との間で上下方向Ｚへ延びるように架設した案内レール１６に沿って上下方向Ｚへ移動し得る切断ユニット１７を備えている。その切断ユニット１７は、案内レール１６に対し上下方向Ｚへ移動可能に支持した取付体（スライダ１８と、そのスライダ１８に取着したブラケット１９）と、その取付体１９に支持した駆動ローラ２０、従動ローラ２１及び駆動モータ２２と、その駆動モータ２２により回転する駆動ローラ２０と従動ローラ２１との間で互いに掛け渡した無端状バンドソー２３とを備えている。上側支持台８と下側支持台１２との間と、柱１と案内レール１６との間と、取付体１８，１９の移動方向Ｚに対し直交する左右方向Ｙにおける案内レール１６の両側とにより設けた移動許容スペースＳにおいて、案内レール１６に対する左右両側のうち、一方の側には駆動ローラ２０を配設するとともに、他方の側には従動ローラ２１を配設している。前記切断ユニット１７の自重により、取付体１８，１９が駆動ローラ２０や駆動モータ２２や従動ローラ２１や無端状バンドソー２３とともに案内レール１６に対し下降するようにして、柱１から突出する被切断物４，５を無端状バンドソー２３により切断する。 The present invention will be described with reference to the reference numerals of the drawings (FIGS. 1 to 12) of the embodiments described later.
The cutting machine according to the invention of claim 1 is configured as follows.
This cutting machine includes a cutting unit 17 that can move in the vertical direction Z along a guide rail 16 that extends between the upper support 8 and the lower support 12 fixed to the pillar 1 so as to extend in the vertical direction Z. It has. The cutting unit 17 includes an attachment body (slider 18 and a bracket 19 attached to the slider 18) supported so as to be movable in the vertical direction Z with respect to the guide rail 16, and a driving roller 20 supported on the attachment body 19. A driven roller 21 and a drive motor 22, and an endless band saw 23 spanning each other between the drive roller 20 and the driven roller 21 rotated by the drive motor 22 are provided. Between the upper support base 8 and the lower support base 12, between the column 1 and the guide rail 16, and on both sides of the guide rail 16 in the left-right direction Y perpendicular to the moving direction Z of the mounting bodies 18, 19. In the provided permissible space S, the drive roller 20 is disposed on one side of the left and right sides of the guide rail 16, and the driven roller 21 is disposed on the other side. Due to the weight of the cutting unit 17, the attachments 18, 19 are lowered with respect to the guide rail 16 together with the driving roller 20, the driving motor 22, the driven roller 21, and the endless band saw 23, and the object to be cut protruding from the column 1. 4 and 5 are cut by an endless band saw 23.

請求項１の発明では、立てた柱１から突出して残る被切断物４，５を切断して除去するための切断機のみに着目した設計であるため、切断ユニット１７が自重により下降するだけでよく、切断ユニット１７の移動手段を省略することができる。従って、上側支持台８と下側支持台１２との間と、柱１と案内レール１６との間と、取付体１８，１９の移動方向Ｚに対し直交する左右方向Ｙにおける案内レール１６の両側とに設けた移動許容スペースＳを、駆動モータ２２と駆動ローラ２０と従動ローラ２１と無端状バンドソー２３とを支障なく配設し得る程度に小さく設定することができる。 In the invention of claim 1, since the design focuses only on the cutting machine for cutting and removing the workpieces 4 and 5 remaining protruding from the standing pillar 1, the cutting unit 17 is simply lowered by its own weight. Well, the moving means of the cutting unit 17 can be omitted. Therefore, both sides of the guide rail 16 in the left-right direction Y orthogonal to the moving direction Z of the mounting bodies 18 and 19, between the upper support base 8 and the lower support base 12, between the column 1 and the guide rail 16. Can be set small enough to allow the drive motor 22, the drive roller 20, the driven roller 21, and the endless band saw 23 to be disposed without hindrance.

請求項１の発明を前提とする請求項２の発明においては、被切断物４，５が柱１から切断された際に無端状バンドソー２３の内側に位置する分離物４ａ，５ａを支持して吊下する吊下部材３３を備えている。請求項２の発明では、吊下部材３３により、被切断物４，５からの分離物４ａ，５ａの落下を防止することができる。 In the invention of claim 2 premised on the invention of claim 1, when the objects 4 and 5 are cut from the pillar 1, the separated objects 4a and 5a positioned inside the endless band saw 23 are supported. A suspension member 33 is provided for suspension. In the invention of claim 2, the suspended members 33 can prevent the separated objects 4 a and 5 a from dropping from the objects to be cut 4 and 5.

請求項１または請求項２の発明を前提とする請求項３の発明において、前記切断ユニット１７は、無端状バンドソー２３による被切断物４，５の切断時に生じる移動力Ｆを阻止するストッパ３５を有している。請求項３の発明では、ストッパ３５により、切断機の横振れを防止することができる。 In the invention of claim 3 premised on the invention of claim 1 or claim 2, the cutting unit 17 has a stopper 35 for preventing the moving force F generated when the workpieces 4 and 5 are cut by the endless band saw 23. Have. In the invention of claim 3, the stopper 35 can prevent the cutter from shaking.

請求項１または請求項２または請求項３の発明を前提とする請求項４の発明において、前記上側支持台８と下側支持台１２とはそれぞれ柱１に対する載置面１０ａ，１４ａを有し、下側支持台１２は、上側支持台８の載置面１０ａと下側支持台１２の載置面１４ａとを結ぶ想定面Ｐから突出する位置Ａと、その想定面Ｐと案内レール１６との間の移動許容スペースＳに入り込む位置Ｂとを取り得る操作部材３９を有している。請求項４の発明では、操作部材３９を想定面Ｐから突出する位置Ａにすることで、柱１に溶接部７等の障害物があっても切断ユニット１７を柱１から浮かして案内レール１６に沿って移動させることができる。 In the invention of claim 4 based on the invention of claim 1 or claim 2 or claim 3, the upper support base 8 and the lower support base 12 have mounting surfaces 10a and 14a for the pillar 1, respectively. The lower support base 12 includes a position A protruding from an assumed surface P connecting the placement surface 10a of the upper support base 8 and the placement surface 14a of the lower support base 12, and the assumed surface P and the guide rails 16 It has the operation member 39 which can take the position B which enters into the movement permissible space S between. In the invention of claim 4, by setting the operation member 39 to the position A that protrudes from the assumed plane P, the cutting unit 17 is lifted from the column 1 even if there is an obstacle such as the welded portion 7 on the column 1, and the guide rail 16. Can be moved along.

請求項１から請求項４のうちいずれか一つの請求項の発明を前提とする請求項５の発明において、前記上側支持台８は柱１に当接される押圧ピン４１を案内レール１６に対する左右両側に有し、その押圧ピン４１の位置を調節し得る。請求項５の発明では、上側支持台８が載置される柱１の載置面に応じて押圧ピン４１の位置を調節して柱１を圧接することができる。 In the invention of claim 5 premised on the invention of any one of claims 1 to 4, the upper support base 8 moves the pressing pin 41 in contact with the column 1 to the left and right of the guide rail 16. It has on both sides and the position of the pressing pin 41 can be adjusted. In the invention of claim 5, the column 1 can be pressed by adjusting the position of the pressing pin 41 according to the mounting surface of the column 1 on which the upper support 8 is mounted.

請求項１から請求項５のうちいずれか一つの請求項の発明を前提とする請求項６の発明において、前記上側支持台８は、柱１から突出する被切断物４，５に支えられる受け部４２を有している。請求項６の発明では、受け部４２で切断機を支えて柱１に取り付け易い。 In the invention of claim 6 premised on the invention of any one of claims 1 to 5, the upper support base 8 is supported by the workpieces 4, 5 protruding from the pillar 1. A portion 42 is provided. In the invention of claim 6, the cutter 42 is supported by the receiving portion 42 and is easily attached to the pillar 1.

請求項１から請求項６のうちいずれか一つの請求項の発明を前提とする請求項７の発明において、前記切断ユニット１７は案内レール１６に対しばね３０の弾性力により圧接されながら取付体１８，１９とともに上下方向Ｚへ移動する位置決めピン２９を有し、案内レール１６に形成した位置決め孔３１，３２に対しその位置決めピン２９がばね３０の弾性力により係入されて切断ユニット１７の下降が阻止される。請求項７の発明では、切断ユニット１７が自重により下降する際、切断ユニット１７の下降を容易に阻止することができる。 In the invention of claim 7 premised on the invention of any one of claims 1 to 6, the cutting unit 17 is pressed against the guide rail 16 by the elastic force of the spring 30 while being attached to the attachment body 18. , 19 and a positioning pin 29 that moves in the vertical direction Z. The positioning pin 29 is engaged with the positioning holes 31, 32 formed in the guide rail 16 by the elastic force of the spring 30, and the cutting unit 17 is lowered. Be blocked. In the invention of claim 7, when the cutting unit 17 is lowered by its own weight, the lowering of the cutting unit 17 can be easily prevented.

本発明は、立てた柱１から突出して残る被切断物４，５を切断して除去するための切断機を小型化することができる。 The present invention can reduce the size of a cutting machine for cutting and removing the workpieces 4 and 5 remaining protruding from the standing pillar 1.

鉄骨柱を示す部分斜視図である。It is a fragmentary perspective view which shows a steel column. （ａ）は本実施形態にかかる切断機において図１（ａ）の鉄骨柱に対する吊下部材の取付状態を示す正面図であり、（ｂ）は同じく吊下部材の取付状態を示す側面図である。(A) is a front view which shows the attachment state of the suspension member with respect to the steel pillar of FIG. 1 (a) in the cutting machine concerning this embodiment, (b) is a side view which similarly shows the attachment state of a suspension member. is there. 図１（ａ）の鉄骨柱に取り付けた本実施形態の切断機において切断位置にある切断ユニットの最上昇状態を示す正面図である。It is a front view which shows the highest rise state of the cutting unit in a cutting position in the cutting machine of this embodiment attached to the steel column of Fig.1 (a). 同じく切断ユニットの最上昇状態を示す側面図である。It is a side view which similarly shows the highest rise state of a cutting unit. 図１（ａ）の鉄骨柱に取り付けた本実施形態の切断機において切断位置にある切断ユニットの中間状態を示す正面図である。It is a front view which shows the intermediate state of the cutting unit in a cutting position in the cutting machine of this embodiment attached to the steel pillar of Fig.1 (a). （ａ）は同じく切断ユニットの中間状態を示す側面図であり、（ｂ）は（ａ）の切断ユニットにおいて下側支持台の操作部材を平面側から見た部分断面である。(A) is a side view which similarly shows the intermediate state of a cutting unit, (b) is the partial cross section which looked at the operation member of the lower side support stand from the plane side in the cutting unit of (a). （ａ）は図１（ａ）の鉄骨柱に取り付けた本実施形態の切断機において非切断位置にある切断ユニットの中間状態を示す側面図であり、（ｂ）は（ａ）の切断ユニットにおいて下側支持台の操作部材を平面側から見た部分断面である。(A) is a side view which shows the intermediate state of the cutting unit in a non-cutting position in the cutting machine of this embodiment attached to the steel column of FIG. 1 (a), (b) is in the cutting unit of (a) It is the partial cross section which looked at the operation member of the lower side support stand from the plane side. 図１（ａ）の鉄骨柱に取り付けた本実施形態の切断機において切断位置にある切断ユニットの最下降状態を示す正面図である。It is a front view which shows the lowest fall state of the cutting unit in a cutting position in the cutting machine of this embodiment attached to the steel pillar of Fig.1 (a). 同じく切断ユニットの最下降状態を示す側面図である。It is a side view which similarly shows the lowest fall state of a cutting unit. 図１（ａ）の鉄骨柱に取り付けた本実施形態の切断機において切断ユニットのストッパを平面側から見た部分断面図である。It is the fragmentary sectional view which looked at the stopper of the cutting unit from the plane side in the cutting machine of this embodiment attached to the steel pillar of Drawing 1 (a). 図１（ａ）の鉄骨柱に取り付けた本実施形態の切断機において上側支持台の押圧ピンを平面側から見た部分断面図である。It is the fragmentary sectional view which looked at the pressing pin of the upper side support stand from the plane side in the cutting machine of this embodiment attached to the steel pillar of Fig.1 (a). （ａ）は図１（ａ）の鉄骨柱に取り付けた本実施形態の切断機において切断ユニットの位置決めピンを案内レールの位置決め孔に係入した状態を側面側から見た部分断面図であり、（ｂ）は同じく位置決めピンを位置決め孔から抜いて案内レールに圧接した状態を側面側から見た部分断面図であり、（ｃ）は同じく位置決めピンを位置決め孔から抜いて支持筒に引掛けた状態を側面側から見た部分断面図である。(A) is the fragmentary sectional view which looked at the state which engaged the positioning pin of the cutting unit in the positioning hole of the guide rail in the cutting machine of this embodiment attached to the steel pillar of Drawing 1 (a) from the side, (B) is a partial cross-sectional view of the state in which the positioning pin is pulled out of the positioning hole and pressed against the guide rail, as viewed from the side, and (c) is also pulled out of the positioning hole and hooked on the support cylinder. It is the fragmentary sectional view which looked at the state from the side.

以下、本発明の一実施形態にかかる切断機について図面を参照して説明する。
この切断機は、図１に示す鉄骨柱１のように、上側柱２と下側柱３とにそれぞれ取着された支持板４，５（被切断物）の基準位置に合わせ板（図示せず）を取着してそれらの支持板４，５をこの合わせ板（図示せず）により互いに連結し、その上側柱２と下側柱３とを互いにずれることなくその合わせ板（図示せず）に正確に合わせた後に溶接部７により接続した際に、鉄骨柱１から突出して残るそれらの支持板４，５を切断して除去するためのものである。下側柱３の支持板５は、上側柱２の支持板４や鉄骨柱１に対し分離された上半部で溶接部７を回避することができる切欠き６を有している。 Hereinafter, a cutting machine according to an embodiment of the present invention will be described with reference to the drawings.
This cutting machine has a plate (not shown) aligned with the reference positions of the support plates 4 and 5 (objects to be cut) respectively attached to the upper column 2 and the lower column 3 as in the steel column 1 shown in FIG. And the supporting plates 4 and 5 are connected to each other by the mating plate (not shown), and the upper column 2 and the lower column 3 are not displaced from each other. ), The support plates 4 and 5 that protrude from the steel column 1 and are left to be removed when they are connected by the welded portion 7 after being precisely aligned with (). The support plate 5 of the lower column 3 has a notch 6 that can avoid the weld 7 in the upper half portion separated from the support plate 4 of the upper column 2 and the steel column 1.

図３，５，８及び図４，６，９に示す上側支持台８においてＴ状の主体部９は左右方向Ｙへ延びる固定部１０と前後方向Ｘへ延びる腕部１１とからなり、下側支持台１２において主体部１３は固定部１４から前後方向Ｘへ延びる腕部１５を有し、それらの腕部１１，１５の前端部間で一本の案内レール１６が上下方向Ｚへ延びるように着脱可能に架設され、その案内レール１６に沿って切断ユニット１７が上下方向Ｚへ移動し得る。 In the upper support base 8 shown in FIGS. 3, 5, 8 and 4, 6, 9, the T-shaped main body portion 9 includes a fixing portion 10 extending in the left-right direction Y and an arm portion 11 extending in the front-rear direction X. In the support base 12, the main body portion 13 has an arm portion 15 extending from the fixed portion 14 in the front-rear direction X, and a single guide rail 16 extends in the up-down direction Z between the front end portions of the arm portions 11, 15. The cutting unit 17 is detachably installed, and the cutting unit 17 can move in the vertical direction Z along the guide rail 16.

前記切断ユニット１７は、案内レール１６に対し上下方向Ｚへ移動可能に支持されたスライダ１８（取付体）と、そのスライダ１８に取着されて左右方向Ｙへ延びるブラケット１９（取付体）と、そのブラケット１９に支持された駆動ローラ２０、従動ローラ２１及び駆動モータ２２と、その駆動モータ２２により回転する駆動ローラ２０と従動ローラ２１との間で互いに掛け渡された無端状バンドソー２３とを備えている。この上側支持台８と下側支持台１２との間で鉄骨柱１に対するそれらの固定部１０，１４の載置面１０ａ，１４ａを結ぶ想定面Ｐと案内レール１６との間には移動許容スペースＳが設けられている。この切断ユニット１７において、ブラケット１９は案内レール１６の後方で移動許容スペースＳに配設され、スライダ１８の移動方向（上下方向Ｚ）に対し直交する左右方向Ｙにおける案内レール１６の左右両側のうち、一方の側の移動許容スペースＳで駆動ローラ２０がブラケット１９の上側に配設されているとともに駆動モータ２２がブラケット１９の下側に配設され、他方の側の移動許容スペースＳで従動ローラ２１がブラケット１９の上側に配設されている。この駆動ローラ２０の回転中心２０ａと従動ローラ２１の回転中心２１ａとは上下方向Ｚへ延び、この駆動ローラ２０と従動ローラ２１との間で互いに掛け渡された無端状バンドソー２３は上向きの端縁と下向きの端縁とを有している。この従動ローラ２１は、駆動ローラ２０の回転中心２０ａと従動ローラ２１の回転中心２１ａとの間の距離Ｌを変更し得るように、ブラケット１９に対し可動調節体２４を介して支持されている。前記スライダ１８は、ブラケット１９が取着されたスライダ本体２５と、そのスライダ本体２５との間で案内レール１６を挟持する蓋体２６とからなる。その蓋体２６は、スライダ本体２５に対し案内レール１６に対するスライダ１８の移動を許容する程度に各止めねじ２７により締め付けられ、その各止めねじ２７を緩めて蓋体２６の各支持孔２６ａを各止めねじ２７から抜くことでスライダ本体２５に対し着脱することができる。蓋体２６をスライダ本体２５から分離させると、切断ユニット１７を案内レール１６から取り外すことができる。 The cutting unit 17 includes a slider 18 (attachment body) supported so as to be movable in the vertical direction Z with respect to the guide rail 16, a bracket 19 (attachment body) attached to the slider 18 and extending in the left-right direction Y, A driving roller 20, a driven roller 21, and a driving motor 22 supported by the bracket 19, and an endless band saw 23 that is spanned between the driving roller 20 and the driven roller 21 that are rotated by the driving motor 22. ing. Between the upper support base 8 and the lower support base 12 between the assumed surface P connecting the mounting surfaces 10a and 14a of the fixing portions 10 and 14 with respect to the steel column 1 and the guide rail 16, a movement allowable space is provided. S is provided. In this cutting unit 17, the bracket 19 is disposed in the movement allowable space S behind the guide rail 16, and is out of the left and right sides of the guide rail 16 in the left-right direction Y orthogonal to the moving direction (vertical direction Z) of the slider 18. The drive roller 20 is disposed on the upper side of the bracket 19 in the movement allowance space S on one side, and the drive motor 22 is disposed on the lower side of the bracket 19, and the driven roller in the movement allowance space S on the other side. 21 is disposed on the upper side of the bracket 19. The rotation center 20a of the drive roller 20 and the rotation center 21a of the driven roller 21 extend in the vertical direction Z, and the endless band saw 23 spanned between the drive roller 20 and the driven roller 21 has an upward edge. And a downward edge. The driven roller 21 is supported by the bracket 19 via a movable adjustment body 24 so that the distance L between the rotation center 20a of the drive roller 20 and the rotation center 21a of the driven roller 21 can be changed. The slider 18 includes a slider body 25 to which a bracket 19 is attached, and a lid body 26 that holds the guide rail 16 between the slider body 25 and the slider body 25. The lid body 26 is tightened by the set screws 27 to the extent that the slider 18 is allowed to move relative to the guide rail 16 with respect to the slider body 25, and the set screws 27 are loosened so that the support holes 26a of the lid body 26 are moved to the respective support holes 26a. It can be attached to and detached from the slider body 25 by removing it from the set screw 27. When the lid 26 is separated from the slider body 25, the cutting unit 17 can be removed from the guide rail 16.

前記切断ユニット１７においてスライダ１８の蓋体２６に取着された支持筒２８には図１２に示すように位置決めピン２９が支持されて案内レール１６側へ圧縮コイルばね３０の弾性力により付勢されている。案内レール１６において上端部側と略中間部とには位置決め孔３１，３２が形成されている。この各位置決め孔３１，３２以外では位置決めピン２９が案内レール１６に対し圧縮コイルばね３０の弾性力により圧接ながらスライダ１８とともに上下方向Ｚへ移動する。この各位置決め孔３１，３２では位置決めピン２９が圧縮コイルばね３０の弾性力により係入されてスライダ１８の移動が阻止される。 As shown in FIG. 12, a positioning pin 29 is supported on the support cylinder 28 attached to the lid 26 of the slider 18 in the cutting unit 17 and is urged toward the guide rail 16 by the elastic force of the compression coil spring 30. ing. In the guide rail 16, positioning holes 31 and 32 are formed on the upper end side and the substantially intermediate portion. Except for the positioning holes 31 and 32, the positioning pin 29 moves in the vertical direction Z together with the slider 18 while being pressed against the guide rail 16 by the elastic force of the compression coil spring 30. In each of the positioning holes 31 and 32, the positioning pin 29 is engaged by the elastic force of the compression coil spring 30 to prevent the slider 18 from moving.

図２に示すように、前記上側柱２の支持板４と下側柱３の支持板５とを着脱可能に挟持することができる一対の挟持板３３ａ，３３ｂからなる吊下部材３３を備えている。その吊下部材３３は、前記上側支持台８の腕部１１に取着されたフック状の吊下部３４に吊り下げられて無端状バンドソー２３の内側に挿入され、図１０に示すようにブラケット１９の左右方向Ｙの中央部に形成された間隙１９ａを通して下方へ延びる。 As shown in FIG. 2, a suspension member 33 comprising a pair of sandwiching plates 33a and 33b capable of detachably sandwiching the support plate 4 of the upper column 2 and the support plate 5 of the lower column 3 is provided. Yes. The suspension member 33 is suspended from a hook-shaped suspension portion 34 attached to the arm portion 11 of the upper support base 8 and inserted into the endless band saw 23. As shown in FIG. It extends downward through a gap 19a formed at the center in the left-right direction Y.

図１０に示すように、前記切断ユニット１７において、ブラケット１９にはその間隙１９ａの付近でストッパ３５が可動調節体３６により上下方向Ｚと左右方向Ｙとに移動調節可能に取着されている。 As shown in FIG. 10, in the cutting unit 17, a stopper 35 is attached to the bracket 19 in the vicinity of the gap 19 a so as to be movable and adjustable in the vertical direction Z and the horizontal direction Y by a movable adjustment body 36.

前記上側支持台８において主体部９の固定部１０から帯巻掛け部３７が上方へ突設されているとともに、前記下側支持台１２において主体部１３の固定部１４から帯巻掛け部３８が下方へ突設されている。この下側支持台１２において、腕部１５の内側で回動可能に支持された操作部材３９は、図７に示すように上側支持台８の載置面１０ａと下側支持台１２の載置面１４ａとを結ぶ想定面Ｐから突出する位置Ａと、図６に示すようにその想定面Ｐと案内レール１６との間の移動許容スペースＳに入り込む位置Ｂとを取り得る。図１１に示すようにこの上側支持台８において固定部１０の左右両側には可動板４０が上下方向Ｚへ延びる回動中心線４０ａを中心に回動可能に且つ長孔４０ｂに沿って前後方向Ｘへ移動可能に支持され、その左右両可動板４０には押圧ピン４１が前後方向Ｘへ延びるように取着されている。この押圧ピン４１は回動中心線４０ａを中心とする円弧軌跡に沿って移動し得る。この上側支持台８の腕部１１の下側には受け部４２が取着されている。 In the upper support base 8, a band winding portion 37 protrudes upward from the fixing portion 10 of the main body portion 9, and in the lower support base 12, a band winding portion 38 extends from the fixing portion 14 of the main body portion 13. It protrudes downward. In the lower support 12, the operation member 39 that is rotatably supported inside the arm portion 15 is placed on the placement surface 10 a of the upper support 8 and the lower support 12 as shown in FIG. 7. A position A protruding from the assumed surface P connecting the surface 14a and a position B entering the movement allowable space S between the assumed surface P and the guide rail 16 as shown in FIG. 6 can be taken. As shown in FIG. 11, in this upper support base 8, the movable plate 40 can be rotated about a rotation center line 40 a extending in the vertical direction Z on the left and right sides of the fixed portion 10 and in the front-rear direction along the long hole 40 b. A pressing pin 41 is attached to the left and right movable plates 40 so as to extend in the front-rear direction X. The pressing pin 41 can move along an arc locus centering on the rotation center line 40a. A receiving portion 42 is attached to the lower side of the arm portion 11 of the upper support base 8.

まず、このように構成された切断機を前記鉄骨柱１に対し下記のようにして取り付ける。
図１２（ｃ）に示すように切断ユニット１７においてスライダ１８の位置決めピン２９を圧縮コイルばね３０の弾性力に抗して持ち上げて支持筒２８に引掛けることで位置決めピン２９を案内レール１６から離すとともに圧縮コイルばね３０が位置決めピン２９を付勢しない状態にし、上側支持台８の付近まで切断ユニット１７を案内レール１６に沿って移動させ、案内レール１６の上側位置決め孔３１の付近で位置決めピン２９の引掛けを解除して図１２（ａ）に示すように位置決めピン２９を圧縮コイルばね３０の弾性力により上側位置決め孔３１に係入する。従って、切断ユニット１７は上側支持台８付近の上限位置で案内レール１６に対し位置決めされる。 First, the cutting machine configured as described above is attached to the steel column 1 as follows.
As shown in FIG. 12 (c), the positioning pin 29 of the slider 18 is lifted against the elastic force of the compression coil spring 30 and hooked on the support cylinder 28 in the cutting unit 17 to separate the positioning pin 29 from the guide rail 16. At the same time, the compression coil spring 30 does not urge the positioning pin 29, the cutting unit 17 is moved along the guide rail 16 to the vicinity of the upper support 8, and the positioning pin 29 near the upper positioning hole 31 of the guide rail 16. The positioning pin 29 is engaged with the upper positioning hole 31 by the elastic force of the compression coil spring 30 as shown in FIG. Accordingly, the cutting unit 17 is positioned with respect to the guide rail 16 at the upper limit position near the upper support 8.

次に、立てた切断機において、鉄骨柱１と案内レール１６との間の移動許容スペースＳに上側柱２の支持板４及び下側柱３の支持板５を入り込ませるとともに、切断ユニット１７の無端状バンドソー２３を上側柱２の支持板４の上方に位置させた状態で、上側支持台８の腕部１１の受け部４２を上側柱２の支持板４上に載せて切断機を支える。その後、上側支持台８における固定部１０の載置面１０ａを鉄骨柱１の上側柱２に当てがって帯巻掛け部３７に帯４３を巻き掛けて上側柱２に結び付けるとともに、下側支持台１２における固定部１４の載置面１４ａを鉄骨柱１の下側柱３に当てがって帯巻掛け部３８に帯４３を巻き掛けて下側柱３に結び付け、上側支持台８における左右両押圧ピン４１を上側柱２に押圧して位置決めする。無端状バンドソー２３による切断前に、上側柱２の支持板４と下側柱３の支持板５とを吊下部材３３で挟持してその吊下部材３３を上側支持台８の腕部１１の吊下部３４に吊り下げる。 Next, in the standing cutting machine, the support plate 4 of the upper column 2 and the support plate 5 of the lower column 3 are inserted into the movement allowable space S between the steel column 1 and the guide rail 16, and the cutting unit 17 With the endless band saw 23 positioned above the support plate 4 of the upper column 2, the receiving part 42 of the arm portion 11 of the upper support 8 is placed on the support plate 4 of the upper column 2 to support the cutting machine. Thereafter, the mounting surface 10a of the fixed portion 10 in the upper support base 8 is applied to the upper column 2 of the steel column 1 so as to wrap the band 43 around the band winding portion 37 and tie it to the upper column 2, and lower support The mounting surface 14a of the fixed portion 14 of the table 12 is applied to the lower column 3 of the steel column 1 and the band 43 is wrapped around the band winding unit 38 and tied to the lower column 3, and the left and right sides of the upper support table 8 are Both pressing pins 41 are pressed against the upper column 2 for positioning. Before cutting by the endless band saw 23, the support plate 4 of the upper column 2 and the support plate 5 of the lower column 3 are sandwiched by the suspension member 33, and the suspension member 33 is attached to the arm portion 11 of the upper support base 8. Suspend from the hanging part 34.

図３，４に示すように切断機を鉄骨柱１に取り付けた後、切断ユニット１７において無端状バンドソー２３を回転させ、スライダ１８の位置決めピン２９を持ち上げて案内レール１６の上側位置決め孔３１から抜くと、図１２（ｂ）に示すように位置決めピン２９が圧縮コイルばね３０の弾性力により案内レール１６に圧接されながら、切断ユニット１７の自重により、スライダ１８がブラケット１９や駆動ローラ２０や駆動モータ２２や従動ローラ２１や無端状バンドソー２３とともに案内レール１６に対し下降し、その下降時に無端状バンドソー２３が鉄骨柱１の付近でまず上側柱２の支持板４を切断する。上側柱２の支持板４は、分離され、無端状バンドソー２３の内側に挿入されてブラケット１９の間隙１９ａを通して下方へ延びるが、図６に示すように上側柱２から分離された分離物４ａは吊下部材３３に保持されて落下しない。その切断時に、切断ユニット１７におけるブラケット１９のストッパ３５が図１０に示すように上側柱２の支持板４に当接するため、無端状バンドソー２３による切断時に生じる移動力Ｆを阻止して切断機の横触れを防止する。 3 and 4, after attaching the cutting machine to the steel column 1, the endless band saw 23 is rotated in the cutting unit 17, and the positioning pin 29 of the slider 18 is lifted and pulled out from the upper positioning hole 31 of the guide rail 16. 12B, while the positioning pin 29 is pressed against the guide rail 16 by the elastic force of the compression coil spring 30, the slider 18 is moved to the bracket 19, the driving roller 20, and the driving motor by the weight of the cutting unit 17. 22, the driven roller 21 and the endless band saw 23 are lowered with respect to the guide rail 16, and the endless band saw 23 first cuts the support plate 4 of the upper column 2 near the steel column 1 at the time of lowering. The support plate 4 of the upper column 2 is separated, inserted into the endless band saw 23, and extends downward through the gap 19a of the bracket 19, but the separation 4a separated from the upper column 2 as shown in FIG. It is held by the suspension member 33 and does not fall. At the time of cutting, the stopper 35 of the bracket 19 in the cutting unit 17 abuts on the support plate 4 of the upper column 2 as shown in FIG. 10, so that the moving force F generated at the time of cutting by the endless band saw 23 is prevented. Prevent side-touching.

次に、図１２（ａ）に示すようにスライダ１８の位置決めピン２９が案内レール１６の中間位置決め孔３２に圧縮コイルばね３０の弾性力で係入されると、切断ユニット１７の自重による下降は停止し、図５，６に示すように無端状バンドソー２３は上側柱２の支持板４と下側柱３の支持板５との間で溶接部７の上方に位置する。その後、図７に示すように下側支持台１２の操作部材３９を固定部１４の載置面１４ａから突出させた位置Ａでその載置面１４ａを鉄骨柱１から浮かせると、切断ユニット１７の無端状バンドソー２３も鉄骨柱１から浮く。そして、図１２（ｃ）に示すようにスライダ１８の位置決めピン２９を圧縮コイルばね３０の弾性力に抗して持ち上げて案内レール１６の中間位置決め孔３２から抜いて支持筒２８に引掛けることで位置決めピン２９を案内レール１６から離すとともに圧縮コイルばね３０が位置決めピン２９を付勢しない状態にし、無端状バンドソー２３が鉄骨柱１の溶接部７を回避して下方へ通り過ぎるまで切断ユニット１７を案内レール１６に沿って下降させる。その後、下側支持台１２の操作部材３９を固定部１４の載置面１４ａの内側に入り込ませた位置Ｂにすると、切断ユニット１７の無端状バンドソー２３は移動許容スペースＳで固定部１０，１４の載置面１０ａ，１４ａを結ぶ想定面Ｐで鉄骨柱１の付近に位置する。 Next, when the positioning pin 29 of the slider 18 is engaged with the intermediate positioning hole 32 of the guide rail 16 by the elastic force of the compression coil spring 30 as shown in FIG. As shown in FIGS. 5 and 6, the endless band saw 23 is positioned above the welded portion 7 between the support plate 4 of the upper column 2 and the support plate 5 of the lower column 3. Thereafter, as shown in FIG. 7, when the mounting surface 14 a is lifted from the steel column 1 at the position A where the operation member 39 of the lower support base 12 protrudes from the mounting surface 14 a of the fixing portion 14, The endless band saw 23 also floats from the steel column 1. Then, as shown in FIG. 12C, the positioning pin 29 of the slider 18 is lifted against the elastic force of the compression coil spring 30, pulled out from the intermediate positioning hole 32 of the guide rail 16, and hooked on the support cylinder 28. The positioning pin 29 is separated from the guide rail 16 and the compression coil spring 30 does not urge the positioning pin 29, and the cutting unit 17 is guided until the endless band saw 23 passes through the welded portion 7 of the steel column 1 and passes downward. Lower along the rail 16. Thereafter, when the operation member 39 of the lower support 12 is set to the position B where the operation member 39 enters the inside of the mounting surface 14a of the fixed portion 14, the endless band saw 23 of the cutting unit 17 is moved to the fixed portions 10 and 14 in the movement allowable space S. It is located in the vicinity of the steel column 1 by the assumed surface P which connects the mounting surfaces 10a and 14a.

次に、位置決めピン２９の引掛けを解除して図１２（ｂ）に示すように位置決めピン２９が圧縮コイルばね３０の弾性力により案内レール１６に圧接されながら、切断ユニット１７の自重により、スライダ１８がブラケット１９や駆動ローラ２０や駆動モータ２２や従動ローラ２１や無端状バンドソー２３とともに案内レール１６に対し下降し、その下降時に無端状バンドソー２３が鉄骨柱１の付近で下側柱３の支持板５を切断する。下側柱３の支持板５も、上側柱２の支持板４と同様に下側柱３から分離され、無端状バンドソー２３の内側に挿入されてブラケット１９の間隙１９ａを通して下方へ延びるが、それらの分離物４ａ，５ａは吊下部材３３に保持されて落下しない。その切断時に、切断ユニット１７におけるブラケット１９のストッパ３５が図１０に示すように下側柱３の支持板５に当接するため、無端状バンドソー２３による切断時に生じる移動力Ｆを阻止して切断機の横触れを防止する。図８，９に示すように切断ユニット１７はそのスライダ１８で下側支持台１２の腕部１５などに当接して停止する。 Next, the hook of the positioning pin 29 is released and the positioning pin 29 is pressed against the guide rail 16 by the elastic force of the compression coil spring 30 as shown in FIG. 18 descends with respect to the guide rail 16 together with the bracket 19, the driving roller 20, the driving motor 22, the driven roller 21, and the endless band saw 23, and the endless band saw 23 supports the lower column 3 in the vicinity of the steel column 1 at the time of lowering. The plate 5 is cut. Similarly to the support plate 4 of the upper column 2, the support plate 5 of the lower column 3 is separated from the lower column 3 and is inserted into the endless band saw 23 and extends downward through the gap 19 a of the bracket 19. The separated items 4a and 5a are held by the suspension member 33 and do not fall. At the time of cutting, since the stopper 35 of the bracket 19 in the cutting unit 17 contacts the support plate 5 of the lower column 3 as shown in FIG. 10, the moving force F generated at the time of cutting by the endless band saw 23 is blocked. Prevent side touching. As shown in FIGS. 8 and 9, the cutting unit 17 is brought into contact with the arm portion 15 of the lower support 12 with the slider 18 and stops.

このような切断後に、上側支持台８及び下側支持台１２の帯巻掛け部３７，３８からそれぞれ帯４３を外して、切断機を鉄骨柱１から取り外す。その際、上側柱２及び下側柱３の支持板４，５から分離された分離物４ａ，５ａは、吊下部材３３で挟持されて上側支持台８に吊り下げられたまま、切断機とともに鉄骨柱１から分離される。 After such cutting, the belt 43 is removed from the belt winding portions 37 and 38 of the upper support base 8 and the lower support base 12, respectively, and the cutting machine is removed from the steel pillar 1. At that time, the separated objects 4a and 5a separated from the support plates 4 and 5 of the upper column 2 and the lower column 3 are held by the suspension member 33 and suspended from the upper support base 8 together with the cutting machine. Separated from the steel column 1.

本実施形態は下記の効果を有する。
＊立てた鉄骨柱１から突出して残る支持板４，５を切断して除去するための切断機のみに着目した設計であるため、切断ユニット１７の移動手段を省略して切断ユニット１７が自重により下降するだけでよく、駆動モータ２２と駆動ローラ２０と従動ローラ２１と無端状バンドソー２３とを配設する移動許容スペースＳを小さく設定して切断機を小型化することができる。 This embodiment has the following effects.
* Since the design focuses only on the cutting machine for cutting and removing the support plates 4 and 5 remaining protruding from the standing steel column 1, the moving unit of the cutting unit 17 is omitted and the cutting unit 17 is moved by its own weight. The cutting machine can be reduced in size by setting the movement allowable space S in which the drive motor 22, the drive roller 20, the driven roller 21, and the endless band saw 23 are set small.

＊支持板４，５からの分離物４ａ，５ａを吊下部材３３により上側支持台８に吊下したので、その分離物４ａ，５ａの落下を防止して切断作業を容易に行うことができる。
＊切断ユニット１７のストッパ３５により切断機の横振れを防止して切断作業を容易に行うことができる。 * Since the separated objects 4a and 5a from the support plates 4 and 5 are suspended from the upper support 8 by the suspension member 33, the separated objects 4a and 5a can be prevented from dropping and the cutting operation can be easily performed. .
* The stopper 35 of the cutting unit 17 can prevent the cutter from shaking and can easily perform the cutting operation.

＊案内レール１６に溶接部７による膨らみがあっても下側支持台１２の操作部材３９により切断ユニット１７を鉄骨柱１から浮かすことでその溶接部７による膨らみを回避して案内レール１６に沿って容易に移動させることができる。 * Even if the guide rail 16 is swollen by the welded portion 7, the cutting unit 17 is lifted from the steel column 1 by the operation member 39 of the lower support 12 to avoid the swollenness by the welded portion 7 and along the guide rail 16. And can be moved easily.

＊上側支持台８が載置される鉄骨柱１の載置面に応じて押圧ピン４１が移動して鉄骨柱１を圧接することができる。
＊上側支持台８の受け部４２を支持板４，５に支えて切断機を鉄骨柱１に容易に取り付けることができる。 * The pressing pin 41 moves according to the mounting surface of the steel column 1 on which the upper support base 8 is mounted, so that the steel column 1 can be pressed.
* The cutting part can be easily attached to the steel column 1 by supporting the receiving part 42 of the upper support 8 on the support plates 4 and 5.

＊切断ユニット１７が自重により下降する際、スライダ１８の位置決めピン２９と案内レール１６の位置決め孔３１，３２とにより、切断ユニット１７の下降を容易に阻止することができる。 * When the cutting unit 17 is lowered by its own weight, the lowering of the cutting unit 17 can be easily prevented by the positioning pins 29 of the slider 18 and the positioning holes 31 and 32 of the guide rail 16.

前記実施形態以外にも例えば下記のように構成してもよい。
・ブラケット１９に対する駆動モータ２２の取付位置は特に限定されないが、前述した実施形態のように駆動ローラ２０の下側でブラケット１９に配設することが好ましい。 For example, the following embodiment may be configured as follows.
The mounting position of the drive motor 22 with respect to the bracket 19 is not particularly limited, but it is preferable that the drive motor 22 is disposed on the bracket 19 below the drive roller 20 as in the above-described embodiment.

・吊下部材３３を上側支持台８以外に案内レール１６の上端部に吊下してもよい。 The suspension member 33 may be suspended from the upper end of the guide rail 16 other than the upper support 8.

１…鉄骨柱、４，５…被切断物としての支持板、４ａ，５ａ…支持板からの分離物、８…上側支持台、１０ａ…載置面、１２…下側支持台、１４ａ…載置面、１６…案内レール、１７…切断ユニット、１８…スライダ（取付体）、１９…ブラケット（取付体）、２０…駆動ローラ、２１…従動ローラ、２２…駆動モータ、２３…無端状バンドソー、２９…位置決めピン、３０…圧縮コイルばね、３１，３２…位置決め孔、３３…吊下部材、３５…ストッパ、３９…操作部材、４１…押圧ピン、４２…受け部、Ｙ…左右方向、Ｚ…上下方向（移動方向）、Ｓ…移動許容スペース、Ｆ…移動力、Ｐ…想定面、Ａ，Ｂ…位置。 DESCRIPTION OF SYMBOLS 1 ... Steel column, 4, 5 ... Support plate as a to-be-cut object, 4a, 5a ... Separation from a support plate, 8 ... Upper support stand, 10a ... Mounting surface, 12 ... Lower support stand, 14a ... Mount Placement surface, 16 ... guide rail, 17 ... cutting unit, 18 ... slider (attachment body), 19 ... bracket (attachment body), 20 ... drive roller, 21 ... driven roller, 22 ... drive motor, 23 ... endless band saw, DESCRIPTION OF SYMBOLS 29 ... Positioning pin, 30 ... Compression coil spring, 31, 32 ... Positioning hole, 33 ... Hanging member, 35 ... Stopper, 39 ... Operation member, 41 ... Pressing pin, 42 ... Receiving part, Y ... Left-right direction, Z ... Up and down direction (moving direction), S ... movement allowable space, F ... moving force, P ... assumed plane, A, B ... position.

Claims

A cutting unit that can move in the vertical direction along the guide rail that extends vertically between the upper support and the lower support fixed to the column is movable in the vertical direction with respect to the guide rail. A mounting body supported, a driving roller supported by the mounting body, a driven roller and a driving motor, and an endless band saw spanned between the driving roller and the driven roller rotated by the driving motor;
In the movement-permissible space provided by the upper support base and the lower support base, between the column and the guide rail, and on both sides of the guide rail in the left-right direction orthogonal to the moving direction of the mounting body, A drive roller is provided on one side of the left and right sides, and a driven roller is provided on the other side.
Due to the weight of the cutting unit, the attachment body is lowered with respect to the guide rail together with the driving roller, the driving motor, the driven roller, and the endless band saw, and the object to be cut protruding from the column is cut by the endless band saw. And cutting machine.

The cutting machine according to claim 1, further comprising a suspension member that supports and suspends a separated object located inside the endless band saw when the object to be cut is cut from the pillar.

The cutting machine according to claim 1 or 2, wherein the cutting unit includes a stopper that prevents a moving force generated when an object is cut by an endless band saw.

The upper support base and the lower support base each have a mounting surface for a column, and the lower support base protrudes from an assumed surface connecting the mounting surface of the upper support base and the mounting surface of the lower support base. 4. The operation member according to claim 1, further comprising an operation member capable of taking a position to enter and a position to enter a movement allowable space between the assumed surface and the guide rail. Cutting machine.

The said upper support stand has a pressing pin contact | abutted with a pillar in the right-and-left both sides with respect to a guide rail, and can adjust the position of the pressing pin, The any one of Claims 1-4 characterized by the above-mentioned. The cutting machine according to claim.

The said upper support stand has a receiving part supported by the to-be-cut object protruded from a pillar, The cutting machine as described in any one of Claims 1-5 characterized by the above-mentioned.

The cutting unit has a positioning pin that moves in the vertical direction together with the mounting body while being pressed against the guide rail by the elastic force of the spring. The positioning pin is engaged with the positioning hole formed in the guide rail by the elastic force of the spring. The cutting machine according to any one of claims 1 to 6, wherein the lowering of the cutting unit is prevented.