JP2013014426A - Steel material suspension device - Google Patents

Steel material suspension device Download PDF

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JP2013014426A
JP2013014426A JP2011150269A JP2011150269A JP2013014426A JP 2013014426 A JP2013014426 A JP 2013014426A JP 2011150269 A JP2011150269 A JP 2011150269A JP 2011150269 A JP2011150269 A JP 2011150269A JP 2013014426 A JP2013014426 A JP 2013014426A
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steel
steel material
claw plate
latching
suspension device
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JP5814661B2 (en
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Makoto Ogawa
真 小川
Toru Omiya
徹 大宮
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Hirose and Co Ltd
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Hirose and Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To collect a plurality of steel materials and safely lift up them with a simple suspension structure.SOLUTION: A steel material suspension device includes: a horizontal frame; a plurality of restricting legs suspended from the horizontal frame; a plurality of hook parts rotatably arranged on lower parts of the restricting legs; and a rotation operating mechanism rotating the hook parts. Each of the hook parts can be switched over by rotation between a steel material releasing position and a steel material hooking position. Each of the hook parts is provided with at least a pair of claw plates which simultaneously come into contact with two positions being a lower surface of an upper flange and a side face of a web of each of the steel materials.

Description

本発明はH形鋼等の複数の鋼材をまとめて安全に吊り上げできる鋼材の吊り装置に関するものである。   The present invention relates to a steel material suspension device that can safely suspend a plurality of steel materials such as H-shaped steel.

山留め工事や仮設桟橋、構台等の土木工事、或いはビル建設等の建築工事において、H形鋼等の鋼材を吊り上げて搬送するには、一対の吊り索(玉掛けロープ、チェーン、ベルト等)で鋼材の周囲を囲い、各吊り索の両端をクレーンのフックに掛止する玉掛け方法が広く用いられている。   To lift and transport steel such as H-shaped steel in construction works such as mountain retaining works, temporary piers, construction works, etc. A slinging method in which both ends of each suspension cable are hooked to a crane hook is widely used.

玉掛け方法は、複数ピースの鋼材をまとめて吊り上げできる利点があるものの、搬送中の荷姿が不安定になり易いために鋼材が落下する危険があることや、玉掛けと荷解きに多くの時間と労力を要し作業効率が悪いといった問題がある。さらに地切り時や着地時において鋼材の動きが少ないために、玉掛け作業者が誤って指を挟んで負傷する危険性が高い。
さらに吊り索の挿通空間を確保するために鋼材の下に角材を介装しているが、複数の鋼材を段積みする場合は、段積みした鋼材全体の高さが角材の累積分だけ余分に高くなるため不安定さが増して危険である。
Although the sling method has the advantage that multiple pieces of steel can be lifted together, there is a risk that the steel will fall due to unstable loading during transportation, and a lot of time is required for slinging and unpacking. There is a problem that labor is required and work efficiency is poor. Furthermore, since there is little movement of the steel material at the time of ground cutting or landing, there is a high risk that the slinging operator will accidentally get injured by pinching the finger.
Furthermore, in order to secure the insertion space for the suspension rope, square bars are interposed under the steel material. However, when stacking multiple steel materials, the total height of the stacked steel materials is increased by the cumulative amount of square material. Since it becomes high, instability increases and it is dangerous.

上記した玉掛けの問題を解決するため、鋼材のフランジをクランプする鋼材用吊り具が特許文献1,2により提案されている。
これらの鋼材用吊り具は、本体板と、該本体板の両端部において回動自在に軸支した一対のL字形またはコ字形を呈する爪体とからなり、一対の爪体を鋼材のフランジに掛止させてクランプする構造になっている。
In order to solve the above-described problem of slinging, Patent Literatures 1 and 2 propose steel hanger for clamping a steel flange.
These steel suspensions are composed of a main body plate and a pair of claw bodies having an L-shape or a U-shape that are pivotally supported at both ends of the main body plate, and the pair of claw bodies are used as flanges of the steel material. It is structured to be hooked and clamped.

特開平9−216785号公報Japanese Patent Laid-Open No. 9-216785 特開2001−139278号公報JP 2001-139278 A

前記した従来の鋼材用吊り具にあっては、鋼材を1ピース単位で安全に吊り上げできるものの、複数ピースの鋼材をまとめて吊り上げすることができない。
また一対の爪体が特殊形状を呈するともに、その爪体の枢支構造も複雑であるため製作コストが嵩む問題もある。
さらに、1ピースの鋼材を水平に吊り上げるには二組以上の鋼材用吊り具を個別に取り付ける必要があり、また切り離す際にも複数の吊り具を個別に取り外さなければならず着脱の作業性が悪いといった問題がある。
In the above-described conventional steel hanger, although steel can be safely lifted in units of one piece, a plurality of pieces of steel cannot be lifted together.
In addition, the pair of claws has a special shape, and the pivotal support structure of the claws is complicated.
Furthermore, in order to lift a piece of steel material horizontally, it is necessary to attach two or more sets of steel material suspensions individually, and also when detaching, a plurality of suspension devices must be individually removed, which makes it easy to attach and detach. There is a problem of being bad.

また鋼材の保持手段としてモータやシリンダ等を利用して鋼材の把持及び切り離しを自動で行う吊り上げ装置も提案されているが、複数ピースの鋼材をまとめて吊り上げできない問題にくわえて、コスト高の問題がある。
さらに、電源設備や流体ユニット設備等の重量設備を具備するため、装置を手軽に移動して使用できず利便性が低い。
In addition, a lifting device has been proposed that uses a motor, cylinder, etc. as a steel material holding means to automatically hold and separate steel materials, but in addition to the problem that multiple pieces of steel materials cannot be lifted together, there is a problem of high cost. There is.
Furthermore, since it has heavy equipment such as power supply equipment and fluid unit equipment, the apparatus cannot be easily moved and used, resulting in low convenience.

本発明は以上の点に鑑みてなされたもので、その目的とするところは、つぎの少なくともひとつの鋼材の吊り装置を提供することにある。
(1)簡易な吊り構造で以って、複数ピースの鋼材をまとめて安全に吊り上げできること。
(2)鋼材へのセット作業と解除作業を簡単に行えること。
(3)使用場所の制限を受けず利便性に優れること。
This invention is made | formed in view of the above point, The place made into the objective is to provide the following at least 1 suspension apparatus of steel materials.
(1) With a simple suspension structure, multiple pieces of steel can be safely lifted together.
(2) It should be possible to easily set and release the steel.
(3) Excellent convenience without being restricted by the place of use.

本願の第1発明は、並列配置した複数の鋼材をまとめて吊り上げる鋼材の吊り装置であって、吊りロープと接続可能な水平フレームと、前記複数の鋼材の両側を跨ぐ間隔を隔てて前記水平フレームに垂下した複数の規制脚と、前記各規制脚の下部に回動可能に設けられ、前記並列配置した複数の鋼材の外方の上位のフランジの下面およびウエブの側面とに当接可能な複数の掛止部と、複数の掛止部の回動操作を行う回動操作機構とを具備し、前記複数の規制脚の間に鋼材の収容空間を形成し、前記回動操作機構により前記掛止部が鋼材との掛止解除位置と掛止位置との間を回動して切り替えが可能であり、前記掛止部は鋼材の上位のフランジの下面とウエブの側面の二箇所を同時に当接する少なくとも一対の爪板を具備することを特徴とする。
本願の第2発明は、前記した第1発明において、前記掛止部は規制脚の下部に回動可能に設けた柱状の回転体と、規制脚に貫挿して配置され、その下部を回転体に連結した吊り軸と、回転体の外周面から横向きに突設した固定爪板と、固定爪板と重合して配置し、該固定爪板に回動自在に枢支した可動爪板とを具備し、前記可動爪板の一部が鋼材のウエブの側面から離間する方向へ向けて可動爪板に常時ばね力を作用させたことを特徴とする。
本願の第3発明は、前記した第2発明において、前記掛止部の回動操作機構は、水平フレームに枢支した回転軸と、該回転軸に設けた駆動カムと、回転軸の端部に設けた操作用のハンドルと、前記各吊り軸の上部に設けた従動カムと、前記駆動カムを中心に左右両側に位置する従動カムとの間をそれぞれ連結したロッドとを具備することを特徴とする。
本願の第4発明は、前記した第2発明において、前記可動爪板が上位側の第1爪部と下位側の第2爪部とを具備し、前記両爪部の合流部が支軸を介して固定爪板に枢支され、可動爪板の無負荷状態において第1爪部の先端が固定爪板から上方へ突出していることを特徴とする。
本願の第5発明は、前記した第4発明において、前記第2の先端に調整ボルトを螺着したことを特徴とする。
A first invention of the present application is a steel material suspension device that collectively lifts a plurality of steel materials arranged in parallel, the horizontal frame connectable to a suspension rope, and the horizontal frame across an interval straddling both sides of the plurality of steel materials A plurality of regulating legs depending on the plurality of legs, and a plurality of regulating legs that are pivotably provided at the lower part of each of the regulating legs and that can contact the lower surface of the outer upper flange and the side surface of the web of the plurality of steel members arranged in parallel. And a rotation operation mechanism that performs a rotation operation of the plurality of engagement portions, a steel material accommodating space is formed between the plurality of regulating legs, and the engagement operation mechanism is used to The latching part can be switched between the latching release position and the latching position with the steel material, and the latching part simultaneously touches two places on the lower surface of the upper flange of the steel material and the side surface of the web. It is characterized by comprising at least a pair of nail plates in contact with each other
According to a second invention of the present application, in the first invention described above, the latching portion is disposed so as to be pivotally provided at a lower portion of the regulating leg, and is inserted through the regulating leg, and the lower portion is disposed on the rotating body. A suspension shaft connected to the outer peripheral surface of the rotating body, a fixed claw plate projecting laterally from the outer peripheral surface of the rotating body, and a movable claw plate arranged so as to overlap with the fixed claw plate and pivotally supported on the fixed claw plate. And a spring force is always applied to the movable claw plate in a direction away from the side surface of the steel web.
According to a third invention of the present application, in the above-described second invention, the rotation operation mechanism of the latching portion includes a rotation shaft pivotally supported on a horizontal frame, a drive cam provided on the rotation shaft, and an end portion of the rotation shaft. An operation handle provided on each of the suspension shafts, a driven cam provided on an upper portion of each suspension shaft, and a rod connected to each of the driven cams located on the left and right sides with the drive cam as a center. And
According to a fourth invention of the present application, in the above-described second invention, the movable claw plate includes a first claw portion on the upper side and a second claw portion on the lower side, and a joining portion of the both claw portions has a support shaft. And the tip of the first claw portion protrudes upward from the fixed claw plate in a no-load state of the movable claw plate.
The fifth invention of the present application is characterized in that, in the fourth invention described above, an adjustment bolt is screwed to the second tip.

本発明は少なくともつぎのひとつの効果を奏する。
(1)相対向する規制脚が鋼材を跨ぐように吊り装置を吊り込み、作業員が複数の掛止部の回動操作のみを行うだけで、並列配置した複数の鋼材を抱きかかえるように支持できるので、複数の鋼材をまとめて安全に吊り上げできる。
(2)吊り装置を構成する複数の掛止部の回動操作だけで鋼材へのセット作業と解除作業を安全、かつ簡単に行えるので、作業効率がよくなる。
(3)本発明に係る吊り装置はモータやシリンダは勿論のこと、電源設備や流体ユニット設備を必要としない。
したがって、現場に応じて吊り装置を手軽に移動して使用できるので利便性に優れる。
(4)掛止部を簡易な形状の一対の爪板で構成するので、吊り装置の構造が簡易で、かつ製作コストを低くおさえることができる。
(5)可動爪板の第2の先端に調整ボルトを螺着することで、可動爪板の全長を自由に変更できる。
したがって、可動爪板と協働した鋼材のフランジの下面とウエブの側面の当接支持を円滑に行える。
The present invention has at least one of the following effects.
(1) Suspend the suspension device so that the opposing regulation legs straddle the steel material, and support the operator to hold multiple steel materials arranged in parallel by only rotating the multiple latching parts. Because it can, you can safely lift multiple steel materials together.
(2) Since the setting operation and the releasing operation to the steel material can be performed safely and easily only by the rotation operation of the plurality of latching portions constituting the suspension device, the work efficiency is improved.
(3) The suspension device according to the present invention does not require a power supply facility or a fluid unit facility as well as a motor and a cylinder.
Therefore, since the suspension device can be easily moved and used according to the site, it is excellent in convenience.
(4) Since the latching portion is composed of a pair of claw plates having a simple shape, the structure of the suspension device is simple and the production cost can be reduced.
(5) The entire length of the movable claw plate can be freely changed by screwing the adjusting bolt onto the second tip of the movable claw plate.
Therefore, it is possible to smoothly support the lower surface of the steel flange in cooperation with the movable claw plate and the side surface of the web.

本発明に係る鋼材の吊り装置の全体斜視図Overall perspective view of a steel suspension device according to the present invention 複数の鋼材をまとめて吊り上げた状態における吊り装置の側面図Side view of the suspension device in a state where multiple steel materials are lifted together 掛止部が鋼材との掛止解除位置にあるときの説明図で、各図の(a)は掛止部の正面図、(b)は掛止部の平面図It is explanatory drawing when a latching part exists in a latch release position with steel materials, (a) of each figure is a front view of a latching part, (b) is a top view of a latching part 掛止部が鋼材との掛止位置にあるときの説明図で、各図の(a)は掛止部の正面図、(b)は掛止部の平面図It is explanatory drawing when a latching part exists in a latching position with steel materials, (a) of each figure is a front view of a latching part, (b) is a top view of a latching part. 掛止部を構成する固定爪板と可動爪板の正面拡大図Front enlarged view of the fixed nail plate and movable nail plate constituting the latching part 吊り軸の回動を操作する回動操作機構のモデル図Model diagram of the rotation operation mechanism that operates the rotation of the suspension shaft 鋼材から離隔した吊り装置のモデル図Model diagram of lifting device separated from steel 本発明に係る鋼材の吊り装置が吊り上げ可能な段積みした3ピース以上の鋼材の積上げ例の説明図で、(a)は3ピースの鋼材を段積みした積上げ例の説明図、(b)は4ピースの鋼材を段積みした積上げ例の説明図BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram of an example of stacking three or more pieces of steel that can be lifted by a steel material suspension device according to the present invention, wherein (a) is an explanatory diagram of an example of stacking three pieces of steel; Explanatory drawing of an example of stacking 4 pieces of steel 他の形態に係る一部を省略した掛止部の斜視図The perspective view of the latching part which abbreviate | omitted one part which concerns on another form 安全帯を付設した他の形態に係る鋼材の吊り装置に側面図Side view of a steel suspension device according to another embodiment with a safety belt 図10におけるXI−XIの断面図Sectional drawing of XI-XI in FIG.

以下、図面を参照しながら本発明を実施するための形態について説明する。   DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

<1>鋼材の吊り装置の概要
図1に一部を破断した鋼材の吊り装置の全体斜視図を示し、図2に複数の鋼材A,Aを吊り上げた状態における吊り装置の側面図を示す。
<1> Outline of Steel Suspension Device FIG. 1 is an overall perspective view of a steel material suspension device partially broken, and FIG. 2 is a side view of the suspension device in a state where a plurality of steel materials A and A are lifted.

本発明に係る吊り装置は、二列単位で並列配置した鋼材A,Aをまとめて吊り上げるための装置で、方形を呈する水平フレーム10と、並列した鋼材A,Aの両側を跨ぐだけの間隔を隔てて水平フレーム10の四隅に鉛直方向に垂下した複数の規制脚20と、各規制脚20の下部に鉛直軸を中心に回動可能に設けられ、並列した鋼材A,Aの外方のフランジA1下面およびウエブA2の側面と当接可能な掛止部30と、複数の掛止部30の回動操作を手動で行う回動操作機構とを具備する。以下に主要な構成部材について説明する。 The suspension device according to the present invention is a device for lifting together steel materials A and A arranged in parallel in two rows, with a horizontal frame 10 having a square shape and an interval that straddles both sides of the parallel steel materials A and A. A plurality of restricting legs 20 that are vertically suspended from the four corners of the horizontal frame 10, and a lower flange of each of the restricting legs 20 that is pivotable about the vertical axis and that is parallel to the outer flanges of the steel materials A and A and a 1 lower and side surfaces and capable of abutting locking portions 30 of the web a 2, comprises a rotational operation mechanism for turning operations of the plurality of engaging portions 30 manually. The main components will be described below.

<2>水平フレーム
水平フレーム10は複数の規制脚20の曲げ変形を阻止して片持ち支持をし得るだけの剛性を付与した剛性構造体である。
本例では複数の規制脚20の上部間に四本の連結材11を横架し、各連結材11の両端を規制脚20に連結して形成した枠体で水平フレーム10を構成した場合を示すが、水平フレーム10は板体であってもよい。水平フレーム10の平面形状は図示した正方形に限らず、長方形であってもよい。
水平フレーム10の上部には複数の吊りロープ13を接続するためのフック12またはこれに類した接続要素を設け、複数の吊りロープ13を介してクレーンで吊り上げ可能である。
<2> Horizontal Frame The horizontal frame 10 is a rigid structure that is rigid enough to prevent bending deformation of the plurality of regulating legs 20 and can be cantilevered.
In this example, the case where the horizontal frame 10 is constituted by a frame formed by horizontally connecting four connecting members 11 between the upper portions of the plurality of restricting legs 20 and connecting both ends of each connecting member 11 to the restricting legs 20 is shown. As shown, the horizontal frame 10 may be a plate. The planar shape of the horizontal frame 10 is not limited to the illustrated square, and may be a rectangle.
A hook 12 for connecting a plurality of suspension ropes 13 or a connecting element similar thereto is provided on the upper part of the horizontal frame 10 and can be lifted by a crane via the plurality of suspension ropes 13.

<3>規制脚
水平フレーム10の隅部に下向きに垂下した規制脚20は、吊り荷重を水平フレーム10へ伝達するとともに、並列した鋼材A,Aが互いに離隔方向へ広がるのを規制する剛性体であり、その軸芯に貫通孔が形成してある。
<3> Restriction leg The restriction leg 20 that hangs downward at the corner of the horizontal frame 10 transmits a suspending load to the horizontal frame 10, and rigid body that restricts the parallel steel materials A and A from spreading in the separation direction. A through hole is formed in the shaft core.

相対向する規制脚20は並列配置した鋼材A,Aを跨いで外装可能な間隔で設けられていて、相対向する複数の規制脚20の内方には並列配置した鋼材A,Aを収容するための収容空間を形成している。
並列した鋼材A,Aの広がりを小さく抑えるためには、規制脚20の対向間隔を、鋼材A,Aの横断幅にギリギリ近い間隔にすることが望ましい。
規制脚20の設置数について本例では並列した鋼材A,Aの収容空間の片側にそれぞれ2つの規制脚20を配置した形態を示しているが、収容空間の片側にそれぞれ規制脚20を3つ以上設けてもよい。
規制脚20の全長は、吊り上げ予定の鋼材Aの段数を考慮して適宜の長さに設定する。
The opposing regulation legs 20 are provided at intervals that can be sheathed across the steel materials A and A arranged in parallel, and the steel materials A and A arranged in parallel are accommodated inside the plurality of opposing regulation legs 20. An accommodation space is formed.
In order to suppress the spread of the steel materials A and A arranged in parallel, it is desirable that the facing interval of the regulating legs 20 be a distance that is close to the transverse width of the steel materials A and A.
Regarding the number of restriction legs 20 installed In this example, two restriction legs 20 are arranged on one side of the accommodation space of the steel materials A and A arranged in parallel, but three restriction legs 20 are provided on each side of the accommodation space. You may provide above.
The total length of the regulation leg 20 is set to an appropriate length in consideration of the number of steps of the steel material A to be lifted.

<4>掛止部
掛止部30は鋼材Aの上位のフランジA1の下面とウエブA2の側面の二箇所を同時に当接する部位で、少なくとも一対の爪板を具備する。
鋼材A,Aを間に挟んで配置した相対向する一対の掛止部30,30の協働により、並列配置した鋼材A,Aを両側から抱きかかえるようにして保持することができる。
<4> engaging section engaging section 30 at two positions of the upper flange A 1 of the lower surface and the side surface of the web A 2 of the steel A at the same time in contact with the site, comprising at least a pair of nail plates.
By the cooperation of a pair of opposing latching portions 30 and 30 arranged with the steel materials A and A sandwiched therebetween, the steel materials A and A arranged in parallel can be held from both sides.

図示した形態について説明すると、掛止部30は規制脚20の下部に回動可能に設けた柱状の回転体31と、規制脚20の軸芯に貫挿して配置され、その下部を回転体31に連結し、上部を規制脚20または水平フレーム10に回動可能に固定した吊り軸32と、回転体31の外周面から横向きに突設した固定爪板33と、固定爪板33と重合して配置し、該固定爪板33の一部に回動自在に枢支した可動爪板34とを具備する。   The illustrated embodiment will be described. The latching portion 30 is disposed so as to be inserted through the shaft core of the regulating leg 20 and a columnar rotating body 31 rotatably provided at the lower portion of the regulating leg 20. And a suspension shaft 32 whose upper part is rotatably fixed to the regulation leg 20 or the horizontal frame 10, a fixed claw plate 33 projecting laterally from the outer peripheral surface of the rotating body 31, and the fixed claw plate 33. And a movable claw plate 34 pivotally supported by a part of the fixed claw plate 33.

<4.1>回転体
回転体31は本体31aと、本体31aの上部に形成した円柱状の小径部31bとを具備し、本体31aと小径部31bの間に段差面31cを形成している。
規制脚20と同軸線上に位置させた回転体31の小径部31aが規制脚20の断面円形の貫通孔の下部に回動可能に滑嵌入するとともに、段差面31cが規制脚20の下面と当接して位置決めされる。
本体31aの断面形状は図示した円形に限定されず、多角形であってもよい。
<4.1> Rotating body The rotating body 31 includes a main body 31a and a columnar small-diameter portion 31b formed on the upper portion of the main body 31a, and a step surface 31c is formed between the main body 31a and the small-diameter portion 31b. .
The small-diameter portion 31a of the rotating body 31 positioned on the same axis as the regulating leg 20 is slidably fitted into the lower part of the through hole having a circular cross section of the regulating leg 20, and the step surface 31c is in contact with the lower surface of the regulating leg 20. Positioned in contact.
The cross-sectional shape of the main body 31a is not limited to the illustrated circle, and may be a polygon.

<4.2>吊り軸
吊り軸32は回転体31に加わる荷重を規制脚20を介して水平フレーム10へ伝達するとともに、回転体31を回動するための棒材で、その下部を回転体31の軸心に固定するとともに、その上端を規制脚20または水平フレーム10に回動可能に掛止する。
<4.2> Suspension shaft The suspension shaft 32 is a rod for transmitting the load applied to the rotating body 31 to the horizontal frame 10 via the regulating leg 20 and for rotating the rotating body 31, and the lower portion of the rotating shaft 32 is the rotating body. The upper end of the shaft 31 is fixed to the restriction leg 20 or the horizontal frame 10 so as to be rotatable.

<4.3>固定爪板
図5に示した掛止部30の拡大図を参照して説明すると、固定爪板33は鋼材Aの上位のフランジA1の下面を支持する逆L字形を呈した板体で、回転体31の本体31aの軸芯と平行に配置して横向きに張り出している。
固定爪板33の最上部には第1当接部33aを形成していて、該第1当接部33aが鋼材Aの上位のフランジA1の下面と当接する。
<4.3> Fixed Claw Plate With reference to the enlarged view of the latching portion 30 shown in FIG. 5, the fixed claw plate 33 has an inverted L shape that supports the lower surface of the upper flange A 1 of the steel material A. The plate body is arranged in parallel with the axis of the main body 31a of the rotating body 31 and projects sideways.
A first abutting portion 33 a is formed on the uppermost portion of the fixed claw plate 33, and the first abutting portion 33 a contacts the lower surface of the upper flange A 1 of the steel material A.

<4.3>可動爪板
可動爪板34は鋼材AのウエブA2の側面と当接する略V字形または略L字形を呈した板体で、上位側の第1爪部34aと下位側の第2爪部34bとを具備する。
可動爪板34はその両爪部34a,34bの合流部に貫挿した支軸35を介して固定爪板33に対して回動可能である。
<4.3> Movable Claw Plate The movable claw plate 34 is a substantially V-shaped or L-shaped plate that contacts the side surface of the web A 2 of the steel material A. The upper claw plate 34a and the lower claw plate 34 A second claw portion 34b.
The movable claw plate 34 is rotatable with respect to the fixed claw plate 33 via a support shaft 35 inserted through the joining portion of both the claw portions 34a and 34b.

第1爪部34aは鋼材Aの上位のフランジA1の下面と当接して可動爪板34を回動させるために機能し、可動爪板34の無負荷状態において第1爪部34aの先端が固定爪板33から上方へ突出している。 The first claw portion 34 a functions to contact the lower surface of the upper flange A 1 of the steel material A and rotate the movable claw plate 34, and the tip of the first claw portion 34 a is in an unloaded state of the movable claw plate 34. Projecting upward from the fixed claw plate 33.

第2爪部34aの先端にはその先端部に第2当接部34cを形成していて、該第2当接部34cは鋼材AのウエブA2の側面と当接可能である。 The distal end of the second pawl portion 34a to form a second contact portion 34c at its distal end, said second contact portion 34c is engageable with the side surface of the web A 2 of the steel A.

本例では第2爪部34cの先端に調整ボルト36を螺着し、ボルトヘッドの端面に第2当接部34cを形成した場合を示す。
調整ボルト36を設けたのは、調整ボルト36の螺出長を調整して、鋼材AのウエブA2の側面への押圧力を増加させるためである。
In this example, the adjustment bolt 36 is screwed onto the tip of the second claw portion 34c, and the second contact portion 34c is formed on the end surface of the bolt head.
The adjustment bolt 36 is provided in order to increase the pressing force of the steel A on the side surface of the web A 2 by adjusting the screwing length of the adjustment bolt 36.

調整ボルト36の使用方法の一例を説明する。
調整ボルト36の螺出長を予め短くしておくと、可動爪板34が回動するときに調整ボルト36が鋼材AのウエブA2の側面へ衝突するのを回避でき、可動爪板34の回動を終えた後に調整ボルト36の螺出長を長く調整することでボルトヘッドの端面に第2当接部34cを鋼材AのウエブA2の側面へ押圧することができる。
尚、調整ボルト36は必須ではなく省略する場合もある。
An example of how to use the adjustment bolt 36 will be described.
If the screwing length of the adjustment bolt 36 is shortened in advance, the adjustment bolt 36 can be prevented from colliding with the side surface of the web A 2 of the steel material A when the movable claw plate 34 rotates. the second contact portion 34c can be pressed into the side of the web a 2 of steel a to the end face of the bolt head by adjusting long threaded out length of the adjustment bolt 36 after finishing the rotation.
The adjusting bolt 36 is not essential and may be omitted.

<4.4>可動爪板の爪部
可動爪板34を構成する第1爪部34aおよび第2爪部34bの各突出長と交差角度は、第1爪部34aの先端部が固定爪板33の第1当接部33aとともに鋼材AのフランジA1の下面と同時に当接したときに、支軸35を中心に水平位置まで回動した第2爪部34bの先端の第2当接部34cが、鋼材AのウエブA2の側面と当接するように関係付けられている。
<4.4> Claw portion of movable claw plate The protrusion length and the crossing angle of the first claw portion 34a and the second claw portion 34b constituting the movable claw plate 34 are such that the front end portion of the first claw portion 34a is a fixed claw plate. 33 together with the first contact portion 33a of when in contact simultaneously with the lower surface of the flange a 1 of the steel a, the second contact portion of the distal end of the second pawl portion 34b pivoted to the horizontal position about the support shaft 35 34c has associated so as to be in contact with the side surface of the web a 2 of the steel a.

<4.5>リターンスプリング
可動爪板34が支軸35を中心として第2爪部34bが固定爪板33の上部と接近する方向に常時付勢するようにリターンスプリング37が配設されている。
リターンスプリング37の配設位置は図示した形態に限定されず、要は前記可動爪板34の第2爪部34bが鋼材AのウエブA2の側面から離間する方向へ向けて常時ばね力が作用するように、リターンスプリング37が配設してあればよい。
可動爪板34の反時計回り方向(図5)の回動は、固定爪板33に設けたストッパ38により規制される。
<4.5> Return Spring A return spring 37 is disposed so that the movable claw plate 34 is always urged around the support shaft 35 in the direction in which the second claw portion 34 b approaches the upper portion of the fixed claw plate 33. .
Arrangement position of the return spring 37 is not limited to the embodiment shown, short second claw portion 34b is constantly spring force toward a direction away from the side surface of the web A 2 steel A of the movable pawl plate 34 acts Thus, it is sufficient that the return spring 37 is provided.
The rotation of the movable claw plate 34 in the counterclockwise direction (FIG. 5) is regulated by a stopper 38 provided on the fixed claw plate 33.

<5>掛止部の回動操作機構
掛止部の回動操作機構は、掛止部30による鋼材Aとの掛止解除位置と掛止位置との間の回動を一括操作するための機構である。
<5> Rotation operation mechanism of the latching portion The rotation operation mechanism of the latching portion is for collectively operating the rotation between the latching position of the steel material A by the latching portion 30 and the latching position. Mechanism.

図3,4は回転体31の回動に伴って固定爪板33および可動爪板34が回動する掛止部30の回動範囲を示していて、各図の(a)は掛止部30の正面図、(b)は掛止部30の平面図をそれぞれ示している。
図3は掛止部30の固定爪板33および可動爪板34が鋼材AのフランジA1から離隔した掛止解除位置に位置する状態を示していて、この状態にあるとき掛止部30は鋼材Aに対して自由な昇降を行える。
図4は掛止部30が図3の位置から90度回動して固定爪板33および可動爪板34が鋼材AのフランジA1の内側に入り込んだ掛止位置にある状態を示している。
3 and 4 show the rotation range of the latching portion 30 in which the fixed nail plate 33 and the movable nail plate 34 are rotated in accordance with the rotation of the rotating body 31, and FIG. The front view of FIG. 30 and (b) respectively show a plan view of the latching portion 30.
Figure 3 is shows a state in which the fixing claw plate 33 and the movable claw plate 34 of the engaging portion 30 is positioned in the locking release position spaced from the flange A 1 of the steel A, the hook portion 30 when in this condition The steel material A can be lifted and lowered freely.
Figure 4 shows a state in which the engaging portion 30 is in the intruded locking position fixing the nail plate 33 and the movable pawl plate 34 by 90 degrees rotation from the position of FIG. 3 on the inner side of the flange A 1 steel A .

図1,2を参照して掛止部30の回動操作機構について説明すると、水平フレーム10に枢支した回転軸40の軸上に距離を隔てて2つの駆動カム41を固着するとともに、鉛直に位置する各吊り軸32の上部に従動カム43を固着する。
前記した駆動カム41を中心に左右両側に位置する従動カム43,43との間をそれぞれロッド44で連結する。
回転軸40の端部に設けた操作用のハンドル42を回転することで、回転軸40の回動を、駆動カム41、ロッド44、従動カム43の順序で伝達して、最終的にすべての吊り軸32,32が所定の方向に回動する。
Referring to FIGS. 1 and 2, the rotation operation mechanism of the latching portion 30 will be described. The two drive cams 41 are fixed on the axis of the rotary shaft 40 pivotally supported on the horizontal frame 10 at a distance, and the vertical The follower cam 43 is fixed to the upper part of each suspension shaft 32 located at the position.
The drive cam 41 is connected to the driven cams 43, 43 located on the left and right sides with the rod 44 as a center.
By rotating the operating handle 42 provided at the end of the rotating shaft 40, the rotation of the rotating shaft 40 is transmitted in the order of the drive cam 41, the rod 44, and the driven cam 43, and finally all the operations are performed. The suspension shafts 32 and 32 rotate in a predetermined direction.

尚、図1において符号14はハンドル42の左右方向へ向けた回動位置を規制するための一対のストッパである。   In FIG. 1, reference numeral 14 denotes a pair of stoppers for restricting the rotational position of the handle 42 in the left-right direction.

図6に相対向する一対の吊り軸32,32の回動を操作する回動操作機構のモデル図を示す。
同図に示すように、各ロッド44の両端部にボールジョイントとベアリングを組合せて構成する公知の自在接続具45を取り付け、該自在接続具45を介して各カム41,43に連結することで、回転軸40による水平回転を鉛直回転へスムーズに変換伝達して一対の吊り軸32,32の回動を操作することができる。
FIG. 6 shows a model diagram of a rotation operation mechanism that operates rotation of a pair of suspension shafts 32 and 32 facing each other.
As shown in the figure, a known universal connecting device 45 configured by combining a ball joint and a bearing is attached to both ends of each rod 44, and connected to each cam 41, 43 via the universal connecting device 45. The horizontal rotation by the rotation shaft 40 can be smoothly converted and transmitted to the vertical rotation, and the rotation of the pair of suspension shafts 32 and 32 can be operated.

掛止部30の回動操作機構は、本例で説明した機構の他に、公知の機構を適用してもよい。
また本例ではすべての掛止部30の回動を一斉に操作する場合について説明するが、相対向する一対の掛止部30単位で回動操作を行なうか、或いは各掛止部30を個別に回動操作する機構であってもよい。
In addition to the mechanism described in this example, a known mechanism may be applied as the rotation operation mechanism of the latching portion 30.
Further, in this example, the case where the rotations of all the latching portions 30 are operated at the same time will be described. However, the pivoting operation is performed by a pair of opposing latching portions 30 or each latching portion 30 is individually operated. It may be a mechanism that performs a rotating operation.

[I]鋼材の吊り上げ方法
<1>鋼材の吊り上げ準備
従来の玉掛けでは吊り索の挿通空間を形成するため鋼材Aの下部に角材を介装する必要があった。
本発明では、並列配置した鋼材A,Aの上部両側を抱きかかえるように吊り上げるため、鋼材Aの下部に角材を設ける必要がなく、図7に示すように吊り上げ予定の鋼材A,Aは地面Bなどに接地したままでよい。
[I] Steel Material Lifting Method <1> Steel Material Lifting Preparation In conventional slinging, it is necessary to interpose a square member below steel material A in order to form an insertion space for a suspension cable.
In the present invention, since the steel materials A and A arranged side by side are lifted so as to hold the upper both sides, it is not necessary to provide a square material at the lower portion of the steel material A, and the steel materials A and A to be lifted are ground B as shown in FIG. You can leave it grounded.

<2>吊り装置の降下
図7に示すように、クレーンに吊り装置を吊り下げ、並列配置した鋼材A,Aの真上まで移動する。
吊り装置を降下して、相対向する規制脚20,20を並列配置した鋼材A,Aの両側に跨がせる。
<2> Descent of suspension device As shown in FIG. 7, the suspension device is suspended from a crane and moved to just above steel materials A and A arranged in parallel.
The suspension device is lowered and straddled on both sides of the steel materials A and A in which the opposing regulation legs 20 and 20 are arranged in parallel.

吊り装置を構成する規制脚20の下部の掛止体30が予め掛止解除位置に回動操作してあるため、掛止体30が鋼材A,Aを跨ぐ際に固定爪板33と可動爪板34が鋼材AのフランジA1と衝突しない。
図3(a)に示すように、固定爪板33と可動爪板34が鋼材Aの上位のフランジA1との下方に達したら吊り装置の降下を終了する。
Since the latching body 30 at the lower part of the regulation leg 20 constituting the suspension device has been rotated in advance to the latching release position, when the latching body 30 straddles the steel materials A and A, the fixed claw plate 33 and the movable claw The plate 34 does not collide with the flange A 1 of the steel material A.
As shown in FIG. 3A, when the fixed claw plate 33 and the movable claw plate 34 reach below the upper flange A 1 of the steel material A, the descent of the suspension device is finished.

<3>掛止部の水平回動
つぎに図4に示すように、作業員が既述した回動操作機構を操作すると、各規制脚20の下部に設けた回転体31が一斉に略90度回動する。その結果、回転体31と一体に設けた固定爪板33と可動爪板34が回転体31を中心に水平回動して鋼材Aの上位のフランジA1の下方に潜入する。
本発明では吊り装置を並列配置した鋼材A,Aに吊り降ろした後に、作業員がハンドル42を特定方向へ回動するだけの簡単な操作で、すべての掛止部30を掛止位置にセットすることができる。
<3> Horizontal Rotation of the Latching Section Next, as shown in FIG. 4, when the operator operates the rotation operation mechanism described above, the rotating bodies 31 provided at the lower portions of the respective regulation legs 20 are substantially 90 at a time. Rotate degrees. As a result, the fixed claw plate 33 and the movable claw plate 34 provided integrally with the rotating body 31 are horizontally rotated around the rotating body 31 and enter under the upper flange A 1 of the steel material A.
In the present invention, after hanging the suspension device on the steel materials A and A arranged in parallel, all the latching portions 30 are set at the latching position by a simple operation in which the operator simply turns the handle 42 in a specific direction. can do.

<4>吊り装置の上昇
つぎにクレーンで吊り装置の全体を静かに上昇すると、図2に示すように、規制脚20の下部に設けた固定爪板33と可動爪板34が鋼材Aの上位のフランジA1の下面とウエブA2の側面に掛止して並列配置した鋼材A,Aが吊り上げられる。
<4> Lifting of the lifting device Next, when the entire lifting device is gently lifted with a crane, the fixed claw plate 33 and the movable claw plate 34 provided at the lower part of the regulation leg 20 are positioned above the steel material A as shown in FIG. steel a in parallel arranged hooking of the lower surface and the side surface of the web a 2 of the flange a 1, a is lifted.

<4.1>可動爪板の回動
図4,5を参照しながら固定爪板33と可動爪板34の掛止動作について詳しく説明する。
図4はフリー状態の可動爪板34を示すもので、可動爪板34はリターンスプリング37のばね力を受けて反時計回り方向に付勢されることから、上位の第1爪部34aの先端が固定爪板33の上面より上方に突出している。
図5は負荷状態の可動爪板34を示すもので、吊り装置の全体が上昇すると、上位の第1爪部34aの先端が鋼材Aの上位のフランジA1の下面と当接し、その後も吊り装置の上昇が継続すると、可動爪板34が支軸35を中心に時計回り方向に回動する。
<4.1> Rotation of movable claw plate The latching operation of the fixed claw plate 33 and the movable claw plate 34 will be described in detail with reference to FIGS.
FIG. 4 shows the movable claw plate 34 in a free state. Since the movable claw plate 34 is biased counterclockwise by receiving the spring force of the return spring 37, the tip of the upper first claw portion 34a is shown. Protrudes above the upper surface of the fixed claw plate 33.
Figure 5 shows the movable claw plate 34 of the load condition, when the entire suspension device rises, the tip of the first pawl portion 34a of the upper abuts the lower surface of the flange A 1 of upper steel A, after that hanging When the device continues to rise, the movable claw plate 34 rotates around the support shaft 35 in the clockwise direction.

吊り装置の上昇と可動爪板34の回動に伴い、固定爪板33の上面(第1当接部33a)が上位のフランジA1の下面に当接して鋼材Aを支持する。
固定爪板33の上面(第1当接部33a)が上位のフランジA1の下面に当接すると可動爪板34が回動を停止する。
可動爪板34が回動を停止すると、第2爪部34bが水平位置まで回動し、第2爪部34bに螺着した調整ボルト36の先端(第2当接部34c)が、鋼材AのウエブA2の側面と当接して鋼材Aの水平方向の変位を拘束する。
With increasing the rotation of the movable pawl plate 34 of the suspension device, the upper surface of the fixed pawl plate 33 (first contact portion 33a) to support the steel A in contact with the lower surface of the flange A 1 of upper.
Movable claw plate 34 stops rotating when the upper surface of the fixed pawl plate 33 (first contact portion 33a) is brought into contact with the lower surface of the flange A 1 of upper.
When the movable claw plate 34 stops rotating, the second claw portion 34b is rotated to the horizontal position, and the tip of the adjustment bolt 36 (second contact portion 34c) screwed to the second claw portion 34b is the steel material A. The horizontal displacement of the steel material A is restrained by coming into contact with the side surface of the web A 2 .

上記した両爪板33,34による鋼材Aの上位のフランジA1の下面とウエブA2の側面への掛止動作は、並列配置した鋼材A,Aの両側に位置する掛止部30,30で同時期に行われる。 Latching operation to the flange A 1 of the lower surface and the side surface of the web A 2 of the upper steel A by the two nail plate 33, 34 described above, arranged in parallel to the steel A, the hook portions 30, 30 positioned on both sides of the A At the same time.

<4.2>荷重の支持
図2に示すように、固定爪板33に作用する鋼材A,Aの鉛直方向の荷重は、回転体31、吊り軸32を経由して水平フレーム10に伝達して支持される。
また可動爪板34に作用する鋼材A,Aが真横に広がろうとする荷重(力)は、回転体31と一体の規制脚20の剛性で支持される。
図2において、相対向する可動爪板34,34の第2爪部34bに作用する鋼材A,Aが真横に広がろうとする荷重(力)の反力が、並列配置した鋼材A,Aの外側のウエブA2の両側面を押圧する力となって発生する。この押圧力を図2に矢印で示す。
<4.2> Load Support As shown in FIG. 2, the vertical load of the steel materials A and A acting on the fixed claw plate 33 is transmitted to the horizontal frame 10 via the rotating body 31 and the suspension shaft 32. Supported.
Further, the load (force) that the steel materials A and A acting on the movable claw plate 34 try to spread to the side is supported by the rigidity of the regulating leg 20 integrated with the rotating body 31.
In FIG. 2, the reaction force of the load (force) that the steel materials A and A acting on the second claw portions 34 b of the movable claw plates 34 and 34 facing each other spread right beside the steel materials A and A arranged in parallel. It is generated as a force that presses both side surfaces of the outer web A 2 . This pressing force is indicated by an arrow in FIG.

<4.3>鋼材を二点で支持する理由
つぎに本発明が鋼材Aの上位のフランジA1の下面とウエブA2の側面の二箇所を当接させた理由について説明する。
並列配置した鋼材A,Aの外側のフランジA1の下面だけを支持すると、鋼材A,Aの突合せ部が下がるために鋼材A,Aが回転して落下する。
本発明は鋼材A,Aの回転を阻止するため、鋼材Aとの当接点を増やし、相対向する可動爪板34の先端部で鋼材AのウエブA2の側面も同時に支持するようにした。
<4.3> Reason for supporting the steel material at two points Next, the reason why the present invention makes the lower surface of the upper flange A 1 of the steel material A and the side surface of the web A 2 contact each other will be described.
Arranged in parallel with the steel A, the only supports the outer lower surface of the flange A 1 of A, steel A, steel for the abutment of the A decreases A, A falls to rotate.
In the present invention, in order to prevent the rotation of the steel materials A and A, the contact point with the steel material A is increased, and the side surfaces of the web A 2 of the steel material A are simultaneously supported by the tip portions of the movable claw plates 34 facing each other.

このように本発明では、吊り装置の相対向する規制脚20が鋼材A,Aを跨ぐように吊り装置を吊り込み、作業員が回転体31の簡単な回動操作のみを行うだけで、吊り装置と共に並列配置した鋼材A,Aをまとめて安全に吊り上げることが可能となる。
また吊り装置の合計四箇所の掛止部30によって鋼材A,Aを抱きかかえるように支持するので、鋼材A,Aの荷姿を安定して所望の位置に搬送することができる。
As described above, in the present invention, the suspension device is suspended so that the opposing regulation legs 20 of the suspension device straddle the steel materials A and A, and the operator only performs the simple rotation operation of the rotating body 31. The steel materials A and A arranged in parallel with the device can be safely lifted together.
Moreover, since it supports so that the steel materials A and A may be held by the latching | locking part 30 of a total of four places, the package of steel materials A and A can be conveyed stably to a desired position.

[II]鋼材の吊り降ろし方法
鋼材A,Aを吊り降ろすには、基本的に既述した吊り上げ操作の逆の操作を行えばよい。
[II] Steel material suspension method In order to suspend the steel materials A and A, an operation opposite to the lifting operation described above may be basically performed.

<1>吊り装置の降下
すなわち、所定の位置に吊り装置を吊り降ろして、鋼材A,Aの下面を地面等に着地させる。
継続して吊り装置を吊り降ろすと、図5に示すように固定爪板33の上面(第1当接部33a)が鋼材Aの上位のフランジA1の下面から離隔する。
吊り装置の降下に伴い、リターンスプリング37のばね力により、可動爪板34が支軸35を中心に反時計回り方向に回動し、可動爪板34の回動に伴い第2爪部34bに設けた調整ボルト36の先端(第2当接部34c)が上昇して、鋼材AのウエブA2の側面から自動的に離隔する。
<1> Descent of suspension device That is, the suspension device is suspended at a predetermined position, and the lower surfaces of the steel materials A and A are landed on the ground or the like.
When continuing to down hanging hanging device, the upper surface (first contact portion 33a) of the fixing nail plate 33 as shown in FIG. 5 is disengaged from the lower surface of the flange A 1 of upper steel A.
As the suspension device descends, the spring force of the return spring 37 causes the movable claw plate 34 to rotate counterclockwise about the support shaft 35, and to the second claw portion 34 b as the movable claw plate 34 rotates. the tip of the adjusting bolt 36 provided (second contact portion 34c) is raised, automatically away from the side of the web a 2 of the steel a.

<2>掛止部の水平回動
つぎに図4に示す状態まで両爪板33,34を鋼材Aから離隔したら、既述した回動操作機構を操作して規制脚20の下部に設けた掛止部30をセット時と逆方向に略90度水平に回動して両爪板33,34を掛止解除位置に切り替える。
図3は固定爪板33と可動爪板34が鋼材Aの外方へ露出した掛止解除状を示している。
本発明では、ハンドル42を逆方向に揺動操作するだけで、すべての掛止部30を一斉に回動して固定爪板33および可動爪板34を鋼材A,Aの外方に位置させて掛止解除位置に切り替えることができる。
<2> Horizontal rotation of the latching portion Next, when the nail plates 33 and 34 are separated from the steel material A until the state shown in FIG. 4, the above-described rotation operation mechanism is operated and provided at the lower portion of the regulation leg 20. The latching portion 30 is rotated horizontally by approximately 90 degrees in the opposite direction to that at the time of setting to switch the both claw plates 33 and 34 to the latch release position.
FIG. 3 shows a latch release state in which the fixed claw plate 33 and the movable claw plate 34 are exposed to the outside of the steel material A.
In the present invention, by simply swinging the handle 42 in the opposite direction, all the latching portions 30 are simultaneously rotated so that the fixed claw plate 33 and the movable claw plate 34 are positioned outside the steel materials A and A. Can be switched to the latch release position.

<3>吊り装置の上昇
最後に図7に示すように、吊り装置を上昇させて鋼材A,Aのみを残置する。
固定爪板33と可動爪板34が鋼材AのフランジA1と衝突しない位置まで後退しているので、すべての掛止体30を一斉に上昇させることができる。
<3> Lifting of lifting device Finally, as shown in FIG. 7, the lifting device is lifted to leave only the steel materials A and A.
Since the fixed claw plate 33 and the movable claw plate 34 are retracted to a position where they do not collide with the flange A 1 of the steel material A, all the latching bodies 30 can be raised at the same time.

<4>吊り装置の移動
本発明に係る吊り装置はモータやシリンダは勿論のこと、電源設備や流体ユニット設備を具備しない。
したがって、現場に応じて吊り装置を手軽に移動して使用できるので利便性が高い。
<4> Movement of Suspension Device The suspension device according to the present invention does not include a power supply facility and a fluid unit facility as well as a motor and a cylinder.
Therefore, since the suspension device can be easily moved and used according to the site, it is highly convenient.

[III]鋼材の段積み形態での吊り上げについて
本発明に係る鋼材の吊り装置は、平置きした2ピースの鋼材A,Aをまとめて吊り上げが可能なだけでなく、図8に示すような段積みした3ピース以上の鋼材Aでも吊り上げ可能である。
[III] About lifting in the form of stacked steel materials The steel lifting device according to the present invention is not only capable of lifting two pieces of flat steel materials A and A together, but also as shown in FIG. Even three or more pieces of steel material A stacked can be lifted.

図8の(a)は並列配置した下段の鋼材A,Aの上段中央に別途の1ピースの鋼材Aを段積みした形態を示し、同図の(b)は、並列配置した下段の鋼材A,Aの上段に同数の鋼材A,Aを段積みした形態を示す。   (A) of FIG. 8 shows a form in which a separate piece of steel A is stacked at the upper center of the lower steel A, A arranged in parallel, and (b) in FIG. 8 shows the lower steel A A arranged in parallel. , A shows a form in which the same number of steel materials A and A are stacked on top.

吊り装置を構成する規制脚20の全長を長く設定すれば、段積みした三段以上の鋼材A,Aをまとめて吊り上げることも可能である。
If the total length of the regulation legs 20 constituting the suspension device is set to be long, it is possible to suspend the steel materials A, A having three or more stages stacked together.

[IV]他の形態
以降に他の形態について説明するが、その説明に際し、前記した実施例と同一の部位は同一の符号を付してその詳しい説明を省略する。
[IV] Other Embodiments Other embodiments will be described below. In the description, the same parts as those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

(1)掛止部の他の形態
図9に掛止部30の他の形態を示す。
本例は掛止部30の固定爪板33の両側に一対の可動爪板34,34を配置するとともに、可動爪板34,34を構成する第1爪部34aの先端部の間と、第2爪部34bの先端部の間をそれぞれ連絡板39a,39bを横架して掛止部30を補強したものである。
(1) Other forms of the latching part FIG. 9 shows another form of the latching part 30.
In this example, a pair of movable claw plates 34 and 34 are disposed on both sides of the fixed claw plate 33 of the latching portion 30, and between the front end portions of the first claw portions 34 a constituting the movable claw plates 34 and 34, The connecting plates 39a and 39b are horizontally mounted between the tip portions of the two claw portions 34b to reinforce the latching portion 30.

第1爪部34aの先端部の間に横架した連絡板39aは、図示したように板体を外方に向けて湾曲させるだけでなく、平板であってもよく、その形状は特に問わない。
連絡板39aは支軸35を中心に回動するとき固定爪板33の先端と干渉しない寸法関係になっている。
The connecting plate 39a laid horizontally between the front ends of the first claw portions 34a may not only bend the plate body outwardly as shown in the figure, but may be a flat plate, and the shape is not particularly limited. .
The connecting plate 39 a has a dimensional relationship that does not interfere with the tip of the fixed claw plate 33 when it rotates about the support shaft 35.

本例では、第2爪部34bの先端部の間に横架した連絡板39bに調整ボルト36を設けた形態を示すが、調整ボルト36を省略し、連絡板39bの外面を鋼材のウエブの側面に直接当接させるようにしてもよい。   In this example, the adjustment bolt 36 is provided on the connecting plate 39b laid horizontally between the tips of the second claw portions 34b. However, the adjusting bolt 36 is omitted, and the outer surface of the connecting plate 39b is made of a steel web. You may make it contact | abut directly on a side surface.

一般に鋼材のフランジには予め多数のボルト穴が開設されていることが多く、先の図4に示した可動爪板34が一枚の形態にあっては、第1爪部34aの先端部がボルト穴に入り込むおそれがある。
本例のように可動爪板34,34の第1爪部34aの先端部を連絡板39aで覆っておけば、可動爪板34,34が鋼材の上位のフランジと当接する際にその第1爪部34aがボルト穴に入り込むことを確実に防止できる。
さらに掛止部30を補強した本例にあっては、図8に示すような3ピース以上の鋼材Aを吊り上げる場合や、長尺の鋼材Aを吊り上げる場合に好適である。
In general, many bolt holes are opened in advance in the flange of the steel material, and when the movable claw plate 34 shown in FIG. 4 is in a single form, the tip of the first claw portion 34a is There is a risk of entering the bolt hole.
If the tip of the first claw portion 34a of the movable claw plates 34, 34 is covered with the connecting plate 39a as in this example, the first time when the movable claw plates 34, 34 come into contact with the upper flange of the steel material. It is possible to reliably prevent the claw portion 34a from entering the bolt hole.
Furthermore, in this example in which the latching portion 30 is reinforced, it is suitable for lifting a three-piece or more steel material A as shown in FIG. 8 or for lifting a long steel material A.

(2)規制脚の補強構造
図10には隣り合う規制脚20,20の間に補強材21,22を付設して補強した他の形態を示す。
本例では隣り合う規制脚20,20の下部間に横向きに補強材21を横架し、該補強材21と上位の連結材11の間に縦向きに補強材22を配置した形態を示すが、補強材の設置方向や設置数はこれに限定されず、補強材は二本以上であってもよく、また補強材の配置方向は斜めであってもよい。公知の補強構造を適用できる。
隣り合う規制脚20,20を補強した本例にあっては、鋼材A,Aの吊り上げ時において、相対向する規制脚20の下端部の広がり(外開き)を抑止できる。
(2) Reinforcing structure of regulating leg FIG. 10 shows another embodiment in which reinforcing members 21 and 22 are provided between the regulating legs 20 and 20 adjacent to each other for reinforcement.
In this example, a configuration is shown in which a reinforcing member 21 is horizontally mounted between the lower portions of the adjacent regulation legs 20, 20, and a reinforcing member 22 is disposed vertically between the reinforcing member 21 and the upper connecting member 11. The installation direction and the number of installations of the reinforcing material are not limited to this, and the number of reinforcing materials may be two or more, and the arranging direction of the reinforcing material may be oblique. A known reinforcing structure can be applied.
In the present example in which the adjacent regulation legs 20 and 20 are reinforced, when the steel materials A and A are lifted, it is possible to suppress the expansion (outward opening) of the lower ends of the regulation legs 20 facing each other.

(3)鋼材の落下防止手段
本発明に係る吊り装置は、並列配置した鋼材A,Aの吊り上げに鋼材A,Aの自重を活用するものであるが、搬送作業中に吊り誤操作により周囲の機材等と接触して鋼材Aが落下する可能性がある。
(3) Steel material fall prevention means The suspension device according to the present invention utilizes the weight of the steel materials A and A for lifting the steel materials A and A arranged in parallel. There is a possibility that the steel material A will fall in contact with the like.

図10,11は鋼材Aの落下防止手段を付設した吊り装置を示す。
鋼材Aの落下防止手段は鎖、ロープ、またはネット等の安全帯25で構成し、地切後に鋼材A,Aの下方に架け渡した安全帯25の両端を下位の各補強材21に設けたフック23に連結してある。
10 and 11 show a suspension device provided with means for preventing the steel material A from falling.
The fall prevention means for the steel material A is composed of a safety band 25 such as a chain, a rope, or a net, and both lower ends of the safety band 25 spanned below the steel materials A and A after the earthing are provided in each lower reinforcing material 21. It is connected to the hook 23.

安全帯25は吊り装置に予め配設して取り付けておくか、或いは吊り装置と別体にしておく。前者の場合、安全帯25が吊り操作の邪魔にならないように配設しておくとよい。
また本例では連結具24としてシャックルを用いて安全帯25をフック23に連結した形態を示しているが、公知の連結手段が適用可能である。
The safety belt 25 is disposed and attached to the suspension device in advance or is separated from the suspension device. In the former case, the safety belt 25 may be disposed so as not to interfere with the hanging operation.
Moreover, although the form which connected the safety belt | band | zone 25 to the hook 23 using the shackle as the connection tool 24 is shown in this example, a well-known connection means is applicable.

吊り装置に鋼材Aの落下防止手段を付設した本例にあっては、搬送作業中に地震や強風等を受けても鋼材Aの落下防止手段が鋼材Aの落下を阻止できるので、吊り装置の安全性が格段に向上する。   In this example in which the suspension device is provided with means for preventing the fall of the steel material A, the fall prevention means for the steel material A can prevent the fall of the steel material A even if it is subjected to an earthquake or strong wind during the transfer operation. Safety is greatly improved.

A・・・・・鋼材
1・・・・鋼材のフランジ
2・・・・鋼材のウエブ
B・・・・・地面
10・・・・水平フレーム
11・・・・連結材
20・・・・規制脚
21,22・・・補強材
25・・・・安全帯
30・・・・掛止部
31・・・・回転体
32・・・・吊り軸
33・・・・固定爪板
33a・・・第1当接部
34・・・・可動爪板
34a・・・可動爪板の第1爪部
34b・・・可動爪板の第2爪部
34c・・・第2当接部
35・・・・支軸
36・・・・調整ボルト
37・・・・リターンスプリング
40・・・・回転軸
41・・・・駆動カム
42・・・・ハンドル
43・・・・従動カム
44・・・・ロッド
A ... Steel A 1 ... Steel flange A 2 ... Steel web B ... Ground 10 ... Horizontal frame 11 ... Connecting material 20 ...・ Regulatory legs 21, 22 ・ ・ ・ Reinforcing material 25 ・ ・ ・ Safety belt 30 ・ ・ ・ Hanging portion 31 ・ ・ ・ Rotating body 32 ・ ・ ・ Hangling shaft 33 ・ ・ ・ Fixing claw plate 33 a ··· First abutting portion 34 ··· movable claw plate 34a · · · first claw portion 34b of movable claw plate · · · second claw portion 34c of movable claw plate · · · second abutting portion 35 · · ... Spindle 36 ... Adjustment bolt 37 ... Return spring 40 ... Rotating shaft 41 ... Drive cam 42 ... Handle 43 ... Drive cam 44 ... ·rod

Claims (5)

並列配置した複数の鋼材をまとめて吊り上げる鋼材の吊り装置であって、
吊りロープと接続可能な水平フレームと、
前記複数の鋼材の両側を跨ぐ間隔を隔てて前記水平フレームに垂下した複数の規制脚と、
前記各規制脚の下部に回動可能に設けられ、前記並列配置した複数の鋼材の外方の上位のフランジの下面およびウエブの側面に当接可能な複数の掛止部と、
複数の掛止部の回動操作を行う回動操作機構とを具備し、
前記複数の規制脚の間に鋼材の収容空間を形成し、
前記回動操作機構により前記掛止部が鋼材との掛止解除位置と掛止位置との間を回動して切り替えが可能であり、
前記掛止部は鋼材の上位のフランジの下面とウエブの側面の二箇所を同時に当接する少なくとも一対の爪板を具備することを特徴とする、
鋼材の吊り装置。
A steel device for lifting a plurality of steel materials arranged in parallel,
A horizontal frame connectable with a hanging rope;
A plurality of regulating legs depending on the horizontal frame with an interval across both sides of the plurality of steel materials;
A plurality of latching portions that are rotatably provided at the lower portions of the respective regulation legs, and that can come into contact with the lower surface of the outer upper flange and the side surface of the web of the plurality of steel materials arranged in parallel;
A rotation operation mechanism for performing a rotation operation of a plurality of latching portions,
A steel material accommodating space is formed between the plurality of regulating legs,
The rotation operation mechanism can be switched by rotating the latching portion between the latching release position and the latching position with the steel material,
The latching portion comprises at least a pair of claw plates that simultaneously contact the lower surface of the upper flange of the steel material and the side surface of the web,
Steel suspension device.
請求項1において、前記掛止部は規制脚の下部に回動可能に設けた柱状の回転体と、規制脚に貫挿して配置され、その下部を回転体に連結した吊り軸と、回転体の外周面から横向きに突設した固定爪板と、固定爪板と重合して配置し、該固定爪板に回動自在に枢支した可動爪板とを具備し、前記可動爪板の一部が鋼材のウエブの側面から離間する方向へ向けて可動爪板に常時ばね力を作用させたことを特徴とする、鋼材の吊り装置。   2. The rotating member according to claim 1, wherein the latching portion is provided in a lower part of the regulating leg so as to be rotatable. The suspension shaft is inserted through the regulating leg, and the lower part is connected to the rotating body. A fixed claw plate projecting laterally from the outer peripheral surface of the movable claw plate, and a movable claw plate arranged so as to overlap with the fixed claw plate and pivotally supported on the fixed claw plate. A suspension device for steel material, characterized in that a spring force is always applied to the movable claw plate in a direction in which the portion moves away from the side surface of the steel material web. 請求項2において、前記掛止部の回動操作機構は、水平フレームに枢支した回転軸と、該回転軸に設けた駆動カムと、回転軸の端部に設けた操作用のハンドルと、前記各吊り軸の上部に設けた従動カムと、前記駆動カムを中心に左右両側に位置する従動カムとの間をそれぞれ連結したロッドとを具備することを特徴とする、鋼材の吊り装置。   In Claim 2, the rotation operation mechanism of the latching portion includes a rotation shaft pivotally supported on a horizontal frame, a drive cam provided on the rotation shaft, an operation handle provided on an end portion of the rotation shaft, A steel suspension device, comprising: a driven cam provided on an upper portion of each suspension shaft; and a rod connected to each of the driven cams located on the left and right sides with the drive cam as a center. 請求項2において、前記可動爪板が上位側の第1爪部と下位側の第2爪部とを具備し、前記両爪部の合流部が支軸を介して固定爪板に枢支され、可動爪板の無負荷状態において第1爪部の先端が固定爪板から上方へ突出していることを特徴とする、鋼材の吊り装置。   3. The movable claw plate according to claim 2, wherein the movable claw plate includes a first claw portion on the upper side and a second claw portion on the lower side, and a joining portion of the both claw portions is pivotally supported by the fixed claw plate via a support shaft. A steel material suspension device, wherein the tip of the first claw portion protrudes upward from the fixed claw plate when the movable claw plate is unloaded. 請求項4において、前記第2の先端に調整ボルトを螺着したことを特徴とする、鋼材の吊り装置。   The steel material suspension device according to claim 4, wherein an adjustment bolt is screwed to the second tip.
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* Cited by examiner, † Cited by third party
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JP2017061359A (en) * 2015-09-25 2017-03-30 株式会社ディッグ Hanging tool
CN110723668A (en) * 2019-09-24 2020-01-24 安徽跨宇钢结构网架工程有限公司 A hoisting accessory for heavy H steel
CN114559079A (en) * 2022-04-29 2022-05-31 山东莱钢磁浮列车轨道工程有限公司 Surface machining equipment and method for 9Ni steel cast blank for floor boring
CN114559079B (en) * 2022-04-29 2022-07-26 山东磁浮列车轨道工程有限公司 Surface machining equipment and method for 9Ni steel cast blank for floor boring

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