JP2020165109A - Metal fitting for lifting form for tunnel lining - Google Patents
Metal fitting for lifting form for tunnel lining Download PDFInfo
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- JP2020165109A JP2020165109A JP2019064021A JP2019064021A JP2020165109A JP 2020165109 A JP2020165109 A JP 2020165109A JP 2019064021 A JP2019064021 A JP 2019064021A JP 2019064021 A JP2019064021 A JP 2019064021A JP 2020165109 A JP2020165109 A JP 2020165109A
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Abstract
Description
本発明は、トンネル覆工コンクリート成形するためのセントルのフォームをクレーンなどによって吊り上げることができるようにしたセントルのフォーム吊り上げ用の金具に関するものである。 The present invention relates to a metal fitting for lifting the foam of the center, which enables the foam of the center for forming the tunnel lining concrete to be lifted by a crane or the like.
従来、例えばセントルの天フォームを搬送や姿勢変更などのために吊り上げる場合は、天フォームの開口の内縁部における開口枠に取り付けられたボルトをクレーンなどによって吊り上げるようにしている。このようにすれば、天フォームを吊り上げることができる。ところが、開口枠の前記ボルトの部分に対して天フォームの重量による荷重が集中的に作用して、開口枠が変形することが多い。このような場合は、開口枠内に対する蓋の開閉に支障をきたすことが多い。すなわち、開口枠には前記開口を塞ぐ蓋が設けられ、コンクリートの打設状態の点検などの際には蓋が開放される。従って、開口枠が変形されて、蓋の開閉に支障をきたすと、天フォームをコンクリート成形用に使用できなくなるおそれがあるという問題があった。 Conventionally, for example, when hoisting the top foam of a centle for transporting or changing the posture, the bolt attached to the opening frame at the inner edge of the opening of the top foam is lifted by a crane or the like. In this way, the heavenly foam can be lifted. However, the load due to the weight of the top foam is concentrated on the bolt portion of the opening frame, and the opening frame is often deformed. In such a case, the opening and closing of the lid with respect to the inside of the opening frame is often hindered. That is, the opening frame is provided with a lid for closing the opening, and the lid is opened when checking the concrete casting state. Therefore, if the opening frame is deformed and the opening and closing of the lid is hindered, there is a problem that the top foam may not be used for concrete molding.
ところで、特許文献１においては、天フォームの開口の部分に取り付けられる金具が開示されている。そして、この金具のピンにクレーンのフックが掛けられることにより、天フォームが吊り上げられる。 By the way, Patent Document 1 discloses a metal fitting attached to an opening portion of a top foam. Then, by hooking the crane on the pin of this metal fitting, the ceiling foam is lifted.
前記特許文献１の金具において、前記ピンは開口の奥部に位置する。このため、ストックヤードなどにおいて横倒し状態の天フォームを吊り上げて起立させる場合などにおいては、フックを有するクレーンのチェーンが金具に対して斜めになって金具に干渉する。従って、このような場合においては、天フォームの吊り上げにこの金具を使用し得ない。このため、このような場合は、依然として前記のように開口枠にボルトを取り付けて、そのボルトにチェーンなどが連結されて天フォームが吊り上げられ、よって、開口枠が変形する結果となる。 In the metal fitting of Patent Document 1, the pin is located at the back of the opening. For this reason, when the top foam in a sideways state is lifted and stood up in a stockyard or the like, the chain of the crane having the hook is inclined with respect to the metal fitting and interferes with the metal fitting. Therefore, in such a case, this metal fitting cannot be used for lifting the ceiling foam. Therefore, in such a case, the bolt is still attached to the opening frame as described above, the chain or the like is connected to the bolt, and the ceiling foam is lifted, and thus the opening frame is deformed.
本発明の目的は、開口枠が変形することなく、天フォームなどのフォームを吊り上げることができるセントルのフォーム吊り上げ用の金具を提供することにある。 An object of the present invention is to provide a metal fitting for lifting a foam of Center, which can lift a foam such as a ceiling foam without deforming the opening frame.
上記の目的を達成するために、本発明においては、セントルのフォームにおける開口の内部の開口枠内に収容可能な本体の両端部には、前記開口枠に着脱可能にした固定部を設け、前記本体の上部には吊り上げ部材を掛止め可能にした掛止部を設けたことを特徴とする。 In order to achieve the above object, in the present invention, fixing portions that are detachable from the opening frame are provided at both ends of the main body that can be accommodated in the opening frame inside the opening in the form of the center. It is characterized in that a hooking portion is provided on the upper part of the main body so that the lifting member can be hooked.
このように構成すれば、クレーンのフックなどを金具の掛止部に掛けて金具を吊り上げることができて、フォームを吊り上げることができる。従って、開口枠が変形することを回避できて、開口の蓋の開閉に問題が生じないようにできる。 With this configuration, the hook of a crane or the like can be hung on the hook portion of the metal fitting to lift the metal fitting, and the foam can be lifted. Therefore, it is possible to prevent the opening frame from being deformed and to prevent a problem in opening and closing the lid of the opening.
本発明によれば、開口枠が変形することなく、天フォームなどのフォームを吊り上げることができる効果を発揮する。 According to the present invention, there is an effect that a foam such as a ceiling foam can be lifted without deforming the opening frame.
（実施形態）
以下、本発明を具体化した実施形態について説明する。
はじめに、吊り上げ用の金具（以下、被吊り上げ金具という）４０が使用されるセントル１１のフォームなどの構成について説明する。
(Embodiment)
Hereinafter, embodiments embodying the present invention will be described.
First, a configuration such as a foam of Center 11 in which a lifting metal fitting (hereinafter referred to as a lifting metal fitting) 40 is used will be described.
図１（ａ）及び図１（ｂ）に示すように、トンネルとなる掘削部１０１内の地面１０２には支持枠１２が設置される。支持枠１２には、フォーム組体１３が支持される。このフォーム組体１３は、掘削部１０１の延長方向に並設された複数枚の天フォーム１４と、その各天フォーム１４の両側下部に位置する複数枚の側フォーム１５と、各側フォーム１５の下部に位置するインバートフォーム１６とを備えている。前記天フォーム１４は、頂部天フォーム１４１と、その頂部天フォーム１４１の両側に位置する側部天フォーム１４２とを備えている。本実施形態においては、被吊り上げ金具４０が頂部天フォーム１４１に取り付けられて使用されることを例にとって説明するが、被吊り上げ金具４０を側部天フォーム１４２などの他のフォームの吊り上げに用いてもよい。 As shown in FIGS. 1 (a) and 1 (b), a support frame 12 is installed on the ground 102 in the excavation portion 101 which is a tunnel. The foam assembly 13 is supported on the support frame 12. The foam assembly 13 includes a plurality of heavenly foams 14 arranged side by side in the extension direction of the excavation portion 101, a plurality of side foams 15 located at the lower sides of each of the heavenly foams 14, and each side foam 15. It has an invert form 16 located at the bottom. The heavenly foam 14 includes a top heavenly foam 141 and side heavenly foams 142 located on both sides of the top heavenly foam 141. In the present embodiment, the lifting bracket 40 will be described as an example of being attached to the top top foam 141, but the lifting bracket 40 will be used for lifting other foams such as the side top foam 142. May be good.
図２及び図３に示すように、頂部天フォーム（以下、単にフォームという）１４１は、全体として側面円弧状をなし、図１（ｂ）に示す覆工コンクリート１０３の成形面を形成する面板２１と、その面板２１の裏面側に位置し、フォーム１４１全体を補強するための補強枠２２とを備えている。補強枠２２は、両幅端の幅端枠２２１と、長さ方向の両端の端部板２２２と、幅端枠２２１間に位置し、幅方向に延びる複数の第１，第２中間枠２２３，第２中間枠２２４及び第３中間枠２２５とを備えている。第２中間枠２２４及び第３中間枠２２５はフォーム１４１の頂部の裏面に位置している。 As shown in FIGS. 2 and 3, the top top foam (hereinafter, simply referred to as foam) 141 has a side arc shape as a whole, and the face plate 21 forming the molded surface of the lining concrete 103 shown in FIG. 1 (b). And a reinforcing frame 22 located on the back surface side of the face plate 21 and for reinforcing the entire foam 141. The reinforcing frame 22 is located between the width end frame 221 at both width ends, the end plates 222 at both ends in the length direction, and the width end frame 221, and a plurality of first and second intermediate frames 223 extending in the width direction. , A second intermediate frame 224 and a third intermediate frame 225 are provided. The second intermediate frame 224 and the third intermediate frame 225 are located on the back surface of the top of the foam 141.
図２，図４及び図５に示すように、前記フォーム１４１の頂部である面板２１の中央部には四角形の開口２３が形成されている。この開口２３は前記第２中間枠２２４間及び第３中間枠２２５間に位置している。開口２３の対向する２辺には、第３中間枠２２５の端部に接合するとともに、第２中間枠２２４間に位置する一対の板状の開口枠２４が固定されている。開口枠２４には開口２３を開閉する蓋２７が軸２８を介して図２及び図４に示す開口２３の閉鎖位置と、その閉鎖位置から下方へ垂下して開口２３を開放する開放位置との間において回動可能に支持されている。そして、軸２８を抜き出すことにより、蓋２７は開口枠２４から取り外される。なお、蓋２７は、図示しない着脱可能なピンにより閉
鎖位置に保持される。
As shown in FIGS. 2, 4 and 5, a quadrangular opening 23 is formed in the central portion of the face plate 21 which is the top of the foam 141. The opening 23 is located between the second intermediate frame 224 and the third intermediate frame 225. A pair of plate-shaped opening frames 24 located between the second intermediate frames 224 are fixed to the two opposing sides of the opening 23 while being joined to the end of the third intermediate frame 225. In the opening frame 24, a lid 27 for opening and closing the opening 23 has a closing position of the opening 23 shown in FIGS. 2 and 4 via a shaft 28, and an opening position of hanging downward from the closing position to open the opening 23. It is rotatably supported between them. Then, by pulling out the shaft 28, the lid 27 is removed from the opening frame 24. The lid 27 is held in the closed position by a removable pin (not shown).
図５〜図７に示すように、前記両開口枠２４間には、蓋２７を取り外すことにより、前記被吊り上げ金具４０が取り付けられる。図１０に示すように、この被吊り上げ金具４０は、平面長方形状の第１部材４１と、その第１部材４１の上面に重ねられた同じく平面長方形状の第２部材４２とを備えている。なお、本実施形態においては、図６及び図７の上側を被吊り上げ金具４０の上側とする。 As shown in FIGS. 5 to 7, the lifting metal fitting 40 is attached between the opening frames 24 by removing the lid 27. As shown in FIG. 10, the lifting metal fitting 40 includes a first member 41 having a rectangular shape in a plane and a second member 42 having a rectangular shape in a plane overlapped on the upper surface of the first member 41. In this embodiment, the upper side of FIGS. 6 and 7 is the upper side of the lifting metal fitting 40.
図９及び図１０に示すように、第１部材４１及び第２部材４２により被吊り上げ金具４０の本体４３が構成されている。
図８（ａ），図８（ｂ），図９及び図１０に示すように、第１部材４１は上板部４３１と、その上板部４３１の両側から下方へ折り曲げられた側板部４３２とを有して、断面チャンネル状をなしており、一端部には固定部としての端板４４が溶接されている。上板部４３１の下面には被吊り上げ金具４０の長さ方向に延在する補強板４５が溶接されている。前記上板部４３１には前記補強板４５の両側に位置する一対のボルト挿通孔４６と、２対のボルト挿通孔４７とが透設されている。一対のボルト挿通孔４６は２対のボルト挿通孔４７間に位置し、被吊り上げ金具４０の長さ方向に長い長孔になっている。２対のボルト挿通孔４７は、後述のボルト６１のネジ部より大径で、いわゆるバカ孔になっている。端板４４には一対のボルト挿通孔４９が透設されている。
As shown in FIGS. 9 and 10, the main body 43 of the lifting metal fitting 40 is composed of the first member 41 and the second member 42.
As shown in FIGS. 8 (a), 8 (b), 9 and 10, the first member 41 includes an upper plate portion 431 and side plate portions 432 bent downward from both sides of the upper plate portion 431. It has a cross-sectional channel shape, and an end plate 44 as a fixing portion is welded to one end portion. A reinforcing plate 45 extending in the length direction of the lifting metal fitting 40 is welded to the lower surface of the upper plate portion 431. A pair of bolt insertion holes 46 and two pairs of bolt insertion holes 47 located on both sides of the reinforcing plate 45 are transparently provided in the upper plate portion 431. The pair of bolt insertion holes 46 are located between the two pairs of bolt insertion holes 47, and are elongated in the length direction of the lifting metal fitting 40. The two pairs of bolt insertion holes 47 have a larger diameter than the screw portion of the bolt 61, which will be described later, and are so-called stupid holes. A pair of bolt insertion holes 49 are transparently provided in the end plate 44.
前記第２部材４２は、上板部５１１と、その上板部５１１の両側から下方へ折り曲げられた側板部５１２とを有して、断面チャンネル状をなしている。上板部５１１の一端部には固定部としての端板５２がその脚５２１において溶接固定されている。上板部５１１には前記ボルト挿通孔４６，４７に対応するボルト挿通孔５３が透設されている。上板部５１１の上面のボルト挿通孔５３の部分には固定手段としてのナット５４が溶接されている。ボルト挿通孔５３とナット５４のネジ孔とは連通されている。上板部５１１の上面には、掛止孔５５を有する掛止部としての掛止板５６が溶接されている。図８（ｂ）に示すように、端板５２には一対のボルト挿通孔５７が透設されている。 The second member 42 has an upper plate portion 511 and side plate portions 512 bent downward from both sides of the upper plate portion 511, and has a cross-sectional channel shape. An end plate 52 as a fixing portion is welded and fixed to one end of the upper plate portion 511 on its leg 521. A bolt insertion hole 53 corresponding to the bolt insertion holes 46 and 47 is transparently provided in the upper plate portion 511. A nut 54 as a fixing means is welded to the bolt insertion hole 53 on the upper surface of the upper plate portion 511. The bolt insertion hole 53 and the screw hole of the nut 54 are communicated with each other. A hook plate 56 as a hook portion having a hook hole 55 is welded to the upper surface of the upper plate portion 511. As shown in FIG. 8B, a pair of bolt insertion holes 57 are transparently provided in the end plate 52.
図８（ａ）に示すように、第１部材４１の側板部４３２と第２部材４２の側板部５１２との間には隙間６０が形成されている。
図８（ａ），図８（ｂ），図９及び図１０に示すように、第１部材４１及び第２部材４２の上板部４３１，５１１のボルト挿通孔４６，４７には固定手段としてのボルト６１が下側から挿通され、そのボルト６１は前記ナット５４に螺合される。そして、ボルト６１が第１部材４１の上板部４３１の下面に締め付けられることにより、第１部材４１の上板部４３１と第２部材４２の上板部５１１とが重ねられた状態で固定される。端板４４，５２のボルト挿通孔４９，５７と、開口枠２４のボルト挿通孔２６にはボルト６２が挿通され、そのボルト６２にはナット６３が螺合される。
As shown in FIG. 8A, a gap 60 is formed between the side plate portion 432 of the first member 41 and the side plate portion 512 of the second member 42.
As shown in FIGS. 8 (a), 8 (b), 9 and 10, as fixing means in the bolt insertion holes 46 and 47 of the upper plate portions 431 and 511 of the first member 41 and the second member 42. Bolt 61 is inserted from below, and the bolt 61 is screwed into the nut 54. Then, by tightening the bolt 61 to the lower surface of the upper plate portion 431 of the first member 41, the upper plate portion 431 of the first member 41 and the upper plate portion 511 of the second member 42 are fixed in a superposed state. To. A bolt 62 is inserted into the bolt insertion holes 49 and 57 of the end plates 44 and 52 and the bolt insertion holes 26 of the opening frame 24, and a nut 63 is screwed into the bolt 62.
なお、前記ボルト６１の頭部が前記ボルト挿通孔４６，４７より小さい場合は、図８（ａ）及び図１０に２点鎖線で示すように、ボルト６１の頭部と第１部材４１の上板部４３１の下面との間に、ボルト６１の頭部より大径の座金５９が介在される。 When the head of the bolt 61 is smaller than the bolt insertion holes 46 and 47, it is above the head of the bolt 61 and the first member 41 as shown by the alternate long and short dash line in FIGS. 8A and 10. A washer 59 having a diameter larger than that of the head of the bolt 61 is interposed between the lower surface of the plate portion 431.
以上のように構成された被吊り上げ金具４０は、以下のように使用される。
すなわち、被吊り上げ金具４０のナット５４に螺合されているボルト６１を緩める。このようにすれば、長孔状のボルト挿通孔４６の長さの範囲内及びバカ孔状のボルト挿通孔４７の内径の範囲内で第１部材４１の端板４４と第２部材４２の端板５２との間の間隔が調節可能になる。また、ボルト挿通孔４７の内径の範囲内で、中央部のボルト６１を中心にして第１部材４１と第２部材４２との角度，すなわち前記端板４４，５２間の角度を平行あるいはそれ以外の角度に調節できる。なお、端板４４，５２間の角度を平行以外の角
度にする場合は、その位置関係が第１部材４１の側板部４３２と第２部材４２の側板部５１２との間の隙間６０によって許容される。
The lifting metal fitting 40 configured as described above is used as follows.
That is, the bolt 61 screwed into the nut 54 of the lifting metal fitting 40 is loosened. By doing so, the ends of the end plate 44 of the first member 41 and the ends of the second member 42 within the length range of the elongated bolt insertion hole 46 and the inner diameter range of the stupid hole-shaped bolt insertion hole 47. The distance between the plate 52 and the plate 52 can be adjusted. Further, within the range of the inner diameter of the bolt insertion hole 47, the angle between the first member 41 and the second member 42, that is, the angle between the end plates 44 and 52 is parallel or other than that of the central bolt 61. Can be adjusted to the angle of. When the angle between the end plates 44 and 52 is set to an angle other than parallel, the positional relationship is allowed by the gap 60 between the side plate portion 432 of the first member 41 and the side plate portion 512 of the second member 42. To.
従って、フォーム１４１の開口２３の蓋２７を取り外し、前記のように、ボルト６１を緩めた状態で、フォーム１４１の面板２１の開口２３部分の開口枠２４の内部に被吊り上げ金具４０を収容する。この状態で、第１部材４１及び第１部材４１の端板４４，５２のボルト挿通孔４９，５７と、開口枠２４のボルト挿通孔２６（図２参照）にボルト６２を挿通して、ナット６３を締め付ける。このようにすれば、開口枠２４間の間隔に応じて第１部材４１の端板４４と第２部材４２の端板５２との間の間隔，言い換えれば被吊り上げ金具４０の長さが調節される。 Therefore, the lid 27 of the opening 23 of the foam 141 is removed, and the lifting metal fitting 40 is housed inside the opening frame 24 of the opening 23 portion of the face plate 21 of the foam 141 in a state where the bolt 61 is loosened as described above. In this state, the bolts 62 are inserted into the bolt insertion holes 49 and 57 of the end plates 44 and 52 of the first member 41 and the end plates 44 and 52 of the first member 41 and the bolt insertion holes 26 (see FIG. 2) of the opening frame 24 to nut. Tighten 63. In this way, the distance between the end plate 44 of the first member 41 and the end plate 52 of the second member 42, in other words, the length of the lifting metal fitting 40 is adjusted according to the distance between the opening frames 24. To.
また、開口枠２４の平行度に応じて第１部材４１と第２部材４２とのなす角度が調節される。従って、この状態で、第１部材４１及び第２部材４２の上板部４３１，５１１のボルト挿通孔４６，４７，５３を挿通するボルト６１をナット５４に締め付ければ、第１部材４１及び第２部材４２が相互に固定されるとともに、第１部材４１の端板４４及び第２部材４２の端板５２が開口枠２４に対して隙間のない状態で密着固定される。この状態においては、被吊り上げ金具４０の掛止板５６がフォーム１４１の面板２１から開口２３を介して上方に突出する。 Further, the angle formed by the first member 41 and the second member 42 is adjusted according to the parallelism of the opening frame 24. Therefore, in this state, if the bolts 61 for inserting the bolt insertion holes 46, 47, 53 of the upper plate portions 431, 511 of the first member 41 and the second member 42 are tightened to the nut 54, the first member 41 and the first member 41 The two members 42 are fixed to each other, and the end plate 44 of the first member 41 and the end plate 52 of the second member 42 are closely fixed to the opening frame 24 without any gap. In this state, the hook plate 56 of the lifting metal fitting 40 projects upward from the face plate 21 of the foam 141 through the opening 23.
従って、この状態で、面板２１から外方に突出した掛止板５６の掛止孔５５にクレーンのフックなどを掛ければ、被吊り上げ金具４０を介してフォーム１４１を吊り上げたり、向きを変えたりすることができる。そして、この場合、開口枠２４間に、開口枠２４間の間隔及び平行度に対応した長さ及び形状を有する被吊り上げ金具４０が密着状態で嵌合固定されている。このため、開口枠２４の一部分に荷重が集中することを回避できるとともに、開口枠２４の変形が被吊り上げ金具４０によって拘束される。従って、開口枠２４が変形することを抑えることができる。よって、被吊り上げ金具４０の両端のボルト６２を外して、被吊り上げ金具４０を開口枠２４間から離脱させて、開口枠２４間に蓋２７を取り付けた場合、その蓋２７の開口枠２４間に対する取り付けと、開口枠２４間における開閉を支障なく行うことができる。 Therefore, in this state, if a crane hook or the like is hung on the hook hole 55 of the hook plate 56 protruding outward from the face plate 21, the foam 141 can be lifted or turned through the lifting metal fitting 40. be able to. In this case, the lifting metal fittings 40 having a length and shape corresponding to the distance and parallelism between the opening frames 24 are fitted and fixed between the opening frames 24 in a close contact state. Therefore, it is possible to prevent the load from being concentrated on a part of the opening frame 24, and the deformation of the opening frame 24 is restrained by the lifting metal fitting 40. Therefore, it is possible to prevent the opening frame 24 from being deformed. Therefore, when the bolts 62 at both ends of the lifting bracket 40 are removed, the lifting bracket 40 is separated from the opening frames 24, and the lid 27 is attached between the opening frames 24, the lid 27 is attached to the opening frames 24. It can be attached and opened / closed between the opening frames 24 without any trouble.
ちなみに、被吊り上げ金具４０を用いることなく、フォーム１４１を吊り上げる場合は、開口枠２４のボルト挿通孔２６にボルトを挿通してナットを螺合し、そのボルトをクレーンなどで吊り上げる。このようにすれば、フォーム１４１の荷重が前記ボルト挿通孔２６の部分に集中して作用する。従って、吊り上げられる開口枠２４がフォーム１４１の荷重によって変形され、蓋２７の開閉などに支障をきたす。 Incidentally, when hoisting the foam 141 without using the hoisting metal fitting 40, a bolt is inserted into the bolt insertion hole 26 of the opening frame 24, a nut is screwed, and the bolt is lifted by a crane or the like. In this way, the load of the foam 141 is concentrated on the portion of the bolt insertion hole 26. Therefore, the opening frame 24 to be lifted is deformed by the load of the foam 141, which hinders the opening and closing of the lid 27.
本実施形態においては、以下の効果がある。
（１）フォーム１４１の開口枠２４の内部に収容可能な被吊り上げ金具４０の両端部に、開口枠２４に対してボルト６２及びナット６３により着脱可能に固定される端板４４，５２が設けられている。また、被吊り上げ金具４０の上面には掛止板５６が固定されている。このため、被吊り上げ金具４０の端板４４，５２を開口枠２４に固定することにより、被吊り上げ金具４０による吊り上げ荷重が開口枠２４のほぼ全体に対して作用するとともに、開口枠２４の変形が被吊り上げ金具４０の端板４４，５２によって拘束される。従って、開口枠２４の変形を防止できて、蓋２７を開口２３に設けた場合に、蓋２７を支障なく開閉できる。
In this embodiment, there are the following effects.
(1) End plates 44, 52 that are detachably fixed to the opening frame 24 by bolts 62 and nuts 63 are provided at both ends of the lifting bracket 40 that can be accommodated inside the opening frame 24 of the foam 141. ing. Further, a hook plate 56 is fixed to the upper surface of the lifting metal fitting 40. Therefore, by fixing the end plates 44 and 52 of the lifting metal fitting 40 to the opening frame 24, the lifting load by the lifting metal fitting 40 acts on almost the entire opening frame 24, and the opening frame 24 is deformed. It is restrained by the end plates 44 and 52 of the lifting metal fitting 40. Therefore, the deformation of the opening frame 24 can be prevented, and when the lid 27 is provided in the opening 23, the lid 27 can be opened and closed without any trouble.
（２）被吊り上げ金具４０の第１部材４１と第２部材４２との位置関係を調節すれば、被吊り上げ金具４０が開口枠２４の形状や大きさの相違に対応できて、開口枠２４の変形を適切に回避できる。 (2) By adjusting the positional relationship between the first member 41 and the second member 42 of the lifting metal fitting 40, the lifting metal fitting 40 can cope with the difference in the shape and size of the opening frame 24, and the opening frame 24 Deformation can be avoided appropriately.
（３）第１部材４１及び第２部材４２は、厚さ方向に重ねられるため、被吊り上げ金具４０が高強度になる。
（４）第１部材４１と第２部材４２とが、第１部材４１の長孔状のボルト挿通孔４６及びバカ孔状のボルト挿通孔４７を通り、第２部材４２のナット５４に螺合されるボルト６１によって連結される。従って、ボルト挿通孔４６，４７の形状や大きさ及び側板部４３２，５１２間の隙間６０の広さの範囲内において、被吊り上げ金具４０全体の長さや形状を調節できる。従って、被吊り上げ金具４０は開口枠２４間の間隔や平行度に応じて形状を対応させることができて、開口枠２４の変形をより確実に防止できる。
(3) Since the first member 41 and the second member 42 are stacked in the thickness direction, the lifting metal fitting 40 has high strength.
(4) The first member 41 and the second member 42 pass through the long hole-shaped bolt insertion hole 46 and the stupid hole-shaped bolt insertion hole 47 of the first member 41 and are screwed into the nut 54 of the second member 42. It is connected by the bolt 61 to be formed. Therefore, the length and shape of the entire lifting metal fitting 40 can be adjusted within the range of the shapes and sizes of the bolt insertion holes 46 and 47 and the width of the gap 60 between the side plate portions 432 and 512. Therefore, the shape of the lifting metal fitting 40 can be matched according to the distance and parallelism between the opening frames 24, and the deformation of the opening frame 24 can be prevented more reliably.
（５）第１部材４１及び第２部材４２が、それぞれ上板部４３１，５１１と両側の側板部４３２，５１２とにより構成されている。従って、第１部材４１及び第２部材４２は、断面チャンネル状に形成されており、それぞれ高強度に形成される。 (5) The first member 41 and the second member 42 are composed of upper plate portions 431 and 511 and side plate portions 432 and 512 on both sides, respectively. Therefore, the first member 41 and the second member 42 are formed in a cross-sectional channel shape, and each is formed with high strength.
（変更例）
本発明は前記実施形態に限定されるものではなく、以下のような態様で具体化してもよい。
(Change example)
The present invention is not limited to the above embodiment, and may be embodied in the following aspects.
・前記実施形態においては、第１部材４１の中央部のボルト挿通孔４６を長孔としたが、このボルト挿通孔４６をバカ孔とすること。従って、全てのボルト挿通孔４６，４７をバカ孔とすること。 -In the above embodiment, the bolt insertion hole 46 at the center of the first member 41 is a long hole, but the bolt insertion hole 46 is a stupid hole. Therefore, all the bolt insertion holes 46 and 47 should be stupid holes.
・前記とは逆に、すべてのボルト挿通孔４６，４７を長孔とすること。この場合は、被吊り上げ金具４０は、長さのみが調節される。
・前記実施形態とは逆に、第１部材４１の下面にナット５４を固定し、第２部材４２にボルト挿通孔４６，４７を設けること。
-Conversely to the above, all bolt insertion holes 46 and 47 should be elongated holes. In this case, only the length of the lifting metal fitting 40 is adjusted.
-Conversely to the above embodiment, the nut 54 is fixed to the lower surface of the first member 41, and the bolt insertion holes 46 and 47 are provided in the second member 42.
・前記実施形態においては、被吊り上げ金具４０が単一の第１部材４１と単一の第２部材４２とを備え、掛止板５６を第２部材４２に設けた。これに対し、掛止板５６を有する単一の第２部材４２と、その第２部材４２の下面両端部に重ねられる一対の第１部材４１とを設けること。従って、一対の第１部材４１は、それぞれ単独で第２部材４２に対して位置調節される。この場合、ナット５４は第２部材４２側に設けられ、第１部材４１には、第２部材４２が被吊り上げ金具４０の長さ方向及び長さ方向と交差する方向に移動できるように、ボルト挿通孔４６，４７あるいはボルト挿通孔４７が設けられる。 In the above embodiment, the lifting metal fitting 40 includes a single first member 41 and a single second member 42, and a hook plate 56 is provided on the second member 42. On the other hand, a single second member 42 having the hook plate 56 and a pair of first members 41 stacked on both ends of the lower surface of the second member 42 are provided. Therefore, the pair of first members 41 are individually positioned with respect to the second member 42. In this case, the nut 54 is provided on the side of the second member 42, and the first member 41 is provided with a bolt so that the second member 42 can move in the length direction and the direction intersecting the length direction of the lifting metal fitting 40. Insertion holes 46, 47 or bolt insertion holes 47 are provided.
・被吊り上げ金具４０の第１部材４１及び第２部材４２の側板部４３２，５１２を省略し、第１部材４１及び第２部材４２を単純な板状にすること。
・被吊り上げ金具４０の第１部材及び第２部材を一体化して、被吊り上げ金具４０を１枚の板材によって構成するとともに、その両端にボルト挿通孔を有する端板を設けること。
The side plate portions 432 and 512 of the first member 41 and the second member 42 of the lifting metal fitting 40 are omitted, and the first member 41 and the second member 42 are made into a simple plate shape.
-The first member and the second member of the lifting metal fitting 40 shall be integrated to form the lifting metal fitting 40 with one plate material, and end plates having bolt insertion holes shall be provided at both ends thereof.
・被吊り上げ金具４０の第２部材４２の上面の幅方向の中央部にその長さ方向に延びる補強板を設けること。この場合、第１部材４１の下面に前記実施形態のように補強板４５を設けても、あるいは、その補強板４５を省略してもよい。 -Provide a reinforcing plate extending in the length direction at the center of the upper surface of the second member 42 of the lifting metal fitting 40 in the width direction. In this case, the reinforcing plate 45 may be provided on the lower surface of the first member 41 as in the above embodiment, or the reinforcing plate 45 may be omitted.
（他の技術的思想）
前記実施形態から把握される技術的思想は以下の通りである。
（Ａ）前記第１部材４１及び第２部材４２が断面チャンネル形状である請求項１〜４のうちのいずれか一項に記載のセントルのフォーム吊り上げ用の金具。
(Other technical ideas)
The technical idea grasped from the above embodiment is as follows.
(A) The metal fitting for lifting the foam of a centle according to any one of claims 1 to 4, wherein the first member 41 and the second member 42 have a cross-sectional channel shape.
（Ｂ）前記第１部材４１及び第２部材４２の少なくとも一方の幅方向の中央部に補強部
を設けた請求項１〜４のうちのいずれか一項に記載のセントルのフォーム吊り上げ用の金具。
(B) The metal fitting for lifting the foam of the centle according to any one of claims 1 to 4, wherein a reinforcing portion is provided at the center of at least one of the first member 41 and the second member 42 in the width direction. ..
（Ｃ）請求項１〜４，前記技術的思想（Ａ）項及び（Ｂ）のうちのいずれか一項に記載のセントルのフォーム吊り上げ用の金具をフォームの開口枠に固定して、フォームを吊り上げるセントルのフォーム吊り上げ方法。 (C) Claims 1 to 4, the metal fitting for lifting the foam of the centle according to any one of the technical ideas (A) and (B) is fixed to the opening frame of the foam to form the foam. How to lift the foam of the center to lift.
１１…セントル、１４…フォーム、２３…開口、２４…開口枠、４０…被吊り上げ金具、４１…第１部材、４２…第２部材、４３…本体、６１…ボルト、５４…ナット、５６…掛止部、１４１…フォーム。 11 ... Center, 14 ... Foam, 23 ... Opening, 24 ... Opening frame, 40 ... Lifting bracket, 41 ... 1st member, 42 ... 2nd member, 43 ... Main body, 61 ... Bolt, 54 ... Nut, 56 ... Hanging Stop, 141 ... Form.
Claims (4)
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| JPH0656357U (en) * | 1993-01-20 | 1994-08-05 | 大和ハウス工業株式会社 | Construction material Crane lifting jig |
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