JPS6116718B2 - - Google Patents

Info

Publication number
JPS6116718B2
JPS6116718B2 JP11715679A JP11715679A JPS6116718B2 JP S6116718 B2 JPS6116718 B2 JP S6116718B2 JP 11715679 A JP11715679 A JP 11715679A JP 11715679 A JP11715679 A JP 11715679A JP S6116718 B2 JPS6116718 B2 JP S6116718B2
Authority
JP
Japan
Prior art keywords
rod
steel pipe
main rod
sub
hook
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP11715679A
Other languages
Japanese (ja)
Other versions
JPS5643187A (en
Inventor
Hiroyasu Yonetahi
Tsuneo Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP11715679A priority Critical patent/JPS5643187A/en
Publication of JPS5643187A publication Critical patent/JPS5643187A/en
Publication of JPS6116718B2 publication Critical patent/JPS6116718B2/ja
Granted legal-status Critical Current

Links

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  • Load-Engaging Elements For Cranes (AREA)

Description

【発明の詳細な説明】 本発明は、主として鋼管等の長尺物を吊上げて
運搬するような場合に用いられる吊上装置に関す
る。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lifting device used mainly for lifting and transporting long objects such as steel pipes.

従来、鋼管をクレーン等で運搬する場合、クレ
ーンのフツクを作業員が手に取つて鋼管に巻付け
られたワイヤ又は管端に引掛けているが、手間が
かかり作業能率が低いのみならず、省力化をなし
得ない不満があつた。
Conventionally, when transporting steel pipes using a crane, etc., a worker picks up the hook of the crane and hooks it onto the wire wrapped around the steel pipe or the end of the pipe, but this method is not only time-consuming but also reduces work efficiency. There was some dissatisfaction with not being able to save labor.

本発明は上記問題点を解決したもので、以下図
面を参照してその一実施例につき説明する。図中
1は角パイプ状の主杆体で、その上面に取付けら
れている一対の係止具2にクレーン等のフツク
(いずれも図示せず)を引掛けて水平状態のまま
吊上げる様になつている。該主杆体1の内部には
油圧シリンダ機構3が設けられている。該油圧シ
リンダ機構3は主杆体1と平行となつており、そ
のシリンダ4を主杆体1内に取付けられている取
付部材5に取付けられている。油圧シリンダ機構
3のピストンロツド6の外端部には取付部材7が
取付けられ、該取付部材7には夫々水平軸8を介
して4個を1組とした2組のプーリ9が回動自在
に取付けられている。前記油圧シリンダ機構3の
シリンダ4の略中央部両側に位置して前記主杆体
1の内部には夫々取付部材10が取付けられ、こ
れら取付部材10には夫々水平軸11を介して4
個宛のプーリ12が回動自在に取付けられてい
る。前記主杆体1の内部の一端部には互いに間隔
を存して一対の取付部材13が取付けられ、これ
ら取付部材13には夫々水平軸14を介してプー
リ15が回動自在に取付けられている。又、主杆
体1の内部の他端部には互いに間隔を存して一対
の取付部材16が取付けられ、これら取付部材1
6には夫々水平軸17を介してプーリ18が回動
自在に取付けられている。前記主杆体1の内部に
は互いに間隔を存して4個の取付部材19が取付
けられている。これら支持部材19には夫々連結
金具20を介してワイヤロープ21の一端が連結
されている。両内側のワイヤロープ21は、両外
側から数えて第4番目のプーリ9→両外側から数
えて第4番目のプーリ12→両外側から数えて第
3番目のプーリ9→両外側から数えて第3番目の
プーリ12→プーリ15→(主杆体1の一端開口
部より外部に繰出されて)後述するプーリ57と
順次巻回された後、その他端を連結金具22を介
して主杆体1の下面の一端部に取付けられた支持
部材23に連結されている。両外側のワイヤロー
プ21は、両外側から数えて第1番目のプーリ1
2→両外側から数えて第1番目のプーリ9→両外
側から数えて第2番目のプーリ12→両外側から
数えて第2番目のプーリ18→(主杆体1の他端
開口部より外部に繰出されて)後述するプーリ5
7と順次巻回された後、その他端を連結金具24
を介して主杆体1の下面の他端部に取付けられた
支持部材25に連結されている。しかして、油圧
シリンダ機構3のピストンロツド6がシリンダ4
より突出すると、これに伴い取付部材7がプーリ
9と共に第1図及び第2図中左方向に移動し、該
移動に関連してプーリ9とプーリ12との間の距
離が大きくなることにより、ワイヤロープ21が
主杆体1内に繰込まれて該主杆体1の両端開口部
よりの繰出量が減少し、一方油圧シリンダ機構3
のピストンロツド6がシリンダ4内に退入する
と、これに伴い取付部材7がプーリ9と共に第1
図及び第2図中右方向に移動し、該移動に関連し
てプーリ9とプーリ12との間の距離が小さくな
ることにより、ワイヤロープ21を主杆体1より
繰出し得る状態になる様になつている。なお、本
実施例においては、ワイヤロープ21はピストン
ロツド6の移動量に対しその4倍の長さ繰出され
或いは繰込まれる。従つて、油圧シリンダ機構3
はワイヤロープ21の最大繰出し量に対しその1/
4のストロークを有するものであればよく、又主
杆体1自体を大型化する必要もない。
The present invention solves the above problems, and one embodiment thereof will be described below with reference to the drawings. In the figure, 1 is a rectangular pipe-shaped main rod, which can be hoisted horizontally by hooking the hooks of a crane or the like (none of which are shown) to a pair of locking tools 2 attached to its top surface. ing. A hydraulic cylinder mechanism 3 is provided inside the main rod 1. The hydraulic cylinder mechanism 3 is parallel to the main rod 1, and its cylinder 4 is attached to a mounting member 5 installed inside the main rod 1. A mounting member 7 is attached to the outer end of the piston rod 6 of the hydraulic cylinder mechanism 3, and two sets of four pulleys 9 are rotatably attached to the mounting member 7, respectively, via a horizontal shaft 8. installed. Attachment members 10 are attached to the interior of the main rod 1, located on both sides of the substantially central portion of the cylinder 4 of the hydraulic cylinder mechanism 3.
Individual pulleys 12 are rotatably attached. A pair of mounting members 13 are mounted at one end of the interior of the main rod 1 at a distance from each other, and a pulley 15 is rotatably mounted to each of these mounting members 13 via a horizontal shaft 14. . A pair of mounting members 16 are mounted at the other end of the main rod 1 with a space between them.
A pulley 18 is rotatably attached to each of the pulleys 6 via a horizontal shaft 17. Four attachment members 19 are attached to the inside of the main rod 1 at intervals from each other. One end of a wire rope 21 is connected to each of these supporting members 19 via a connecting fitting 20. The wire ropes 21 on both inner sides are connected to the fourth pulley 9 counting from both outer sides → the fourth pulley 12 counting from both outer sides → the third pulley 9 counting from both outer sides → the third pulley 9 counting from both outer sides The third pulley 12 → pulley 15 → (extended to the outside from the opening at one end of the main rod 1) is wound around the pulley 57 (to be described later), and then the other end is connected to the lower surface of the main rod 1 via the connecting fitting 22. The support member 23 is connected to one end of the support member 23 . The wire ropes 21 on both outsides are connected to the first pulley 1 counting from both outsides.
2 → First pulley 9 counting from both outsides → Second pulley 12 counting from both outsides → Second pulley 18 counting from both outsides → (Outside from the other end opening of main rod 1) pulley 5 (explained later)
7 and then the other end is connected to the connecting fitting 24.
It is connected to a support member 25 attached to the other end of the lower surface of the main rod 1 via. Therefore, the piston rod 6 of the hydraulic cylinder mechanism 3 is connected to the cylinder 4.
As the mounting member 7 protrudes further, the mounting member 7 moves to the left in FIGS. 1 and 2 together with the pulley 9, and the distance between the pulley 9 and the pulley 12 increases due to this movement. The wire rope 21 is retracted into the main rod 1 and the amount of wire rope 21 fed out from the openings at both ends of the main rod 1 is reduced, while the hydraulic cylinder mechanism 3
When the piston rod 6 retracts into the cylinder 4, the mounting member 7 and the pulley 9 move together.
As the wire rope 21 moves to the right in the figures and FIG. ing. In this embodiment, the wire rope 21 is let out or retracted by a length four times the amount of movement of the piston rod 6. Therefore, the hydraulic cylinder mechanism 3
is 1/ of the maximum payout amount of the wire rope 21.
It is sufficient that the main rod 1 has a stroke of 4, and there is no need to enlarge the main rod 1 itself.

前記主杆体1の下方には夫々2本宛の間隔保持
機構26を介して2本の丸パイプ状の副杆体27
が主杆体1と平行に設けられている。前記間隔保
持機構26は、主杆体1の下面に取付けられた取
付部材28と、一端を該取付部材28に回動可能
に取付けられたパイプ29と、該パイプ29内に
可動可能に嵌装されたロツド30と、前記パイプ
29内に収容されて前記ロツド30を前記パイプ
29内に退入する方向に附勢しているスプリング
(図示せず)と、前記ロツド30の外端部に回動
可能に取付けられ且つ前記副杆体27に取付けら
れた取付部材31とからなるもので、副杆体27
を主杆体1にこれと間隔を存して平行に支持せし
めていると共に、副杆体27が主杆体1に対し動
揺した際その振動を吸収する役目をなす様になつ
ている。
Below the main rod 1, two round pipe-shaped sub-rods 27 are connected via a spacing mechanism 26 for each two rods.
is provided parallel to the main rod 1. The spacing holding mechanism 26 includes a mounting member 28 attached to the lower surface of the main rod 1, a pipe 29 whose one end is rotatably attached to the mounting member 28, and a pipe 29 movably fitted into the pipe 29. a spring (not shown) housed in the pipe 29 and biasing the rod 30 in the direction of retraction into the pipe 29; and a mounting member 31 that can be attached to the sub-rod 27 and attached to the sub-rod 27.
are supported parallel to the main rod 1 with a space therebetween, and also serve to absorb vibrations when the sub rod 27 oscillates relative to the main rod 1.

前記副杆体27内には丸パイプ状の可動アーム
32が副杆体27の長さ方向に摺動自在に嵌装さ
れており、その一端部は副杆体27の一端開口部
より突出している。前記可動アーム32内の丸パ
イプ状の可動アーム33が前記可動アーム32の
長さ方向に摺動自在に嵌装されており、その一端
部は前記副杆体27の他端開口部より突出してい
る。前記副杆体27の内部の両端部には夫々スプ
ロケツト34が配設され、これらスプロケツト3
4間には前記可動アーム33内に位置してチエー
ン35が巻装されている。該チエーン35の前記
両可動アーム32,33の他端縁に夫々対応する
部分は夫々連結部材36を介して前記両可動アー
ム32,33の他端縁に連結されている。前記副
杆体27の一端部には油圧モータ37が取付けら
れており、該油圧モータ37の駆動により前記チ
エーン35が矢印A又はB方向に移動される様に
なつている。しかして、油圧モータ37の駆動に
よりチエーン35が矢印A方向に移動すると、こ
れに伴い両可動アーム32,33が副杆体27内
に同時に退入し、一方油圧モータ37の駆動によ
りチエーン35が矢印B方向に移動すると、これ
に伴い両可動アーム32,33が副杆体27より
同時に突出する様になつている。
A round pipe-shaped movable arm 32 is fitted into the sub-rod 27 so as to be slidable in the longitudinal direction of the sub-rod 27, and one end of the arm 32 protrudes from an opening at one end of the sub-rod 27. A round pipe-shaped movable arm 33 is fitted in the movable arm 32 so as to be slidable in the length direction of the movable arm 32, and one end thereof protrudes from the other end opening of the sub-rod 27. . Sprockets 34 are disposed at both ends of the interior of the sub-rod 27, and these sprockets 3
A chain 35 is wound around the movable arm 33 between the two. Portions of the chain 35 corresponding to the other end edges of the movable arms 32, 33 are connected to the other end edges of the movable arms 32, 33 via connecting members 36, respectively. A hydraulic motor 37 is attached to one end of the sub-rod 27, and the chain 35 is moved in the direction of arrow A or B by driving the hydraulic motor 37. When the chain 35 moves in the direction of the arrow A due to the drive of the hydraulic motor 37, both movable arms 32 and 33 simultaneously retract into the sub-rod 27, and on the other hand, the chain 35 moves in the direction of the arrow A due to the drive of the hydraulic motor 37. When moving in direction B, both movable arms 32 and 33 simultaneously project from the sub-rod 27.

前記副杆体27には夫々互いに間隔を存して2
個宛のブラケツト38が取付けられている。該ブ
ラケツト38には副杆体27の側部下方に向かつ
て適宜に傾斜するアーム39が着脱自在に取付け
られ、該アーム39には水平軸40を介してガイ
ドローラ41が回動可能に取付けられている。前
記両可動アーム32,33の突出端下部には夫々
ブラケツト42が取付けられ、これらブラケツト
42には夫々水平軸43を介してガイドローラ4
4が回動自在に取付けられている。前記両可動ア
ーム32,33の突出端部には夫々ブラケツト4
5が取付けられている。該ブラケツト45には上
下方向に延在する長円孔46が穿設され、該長円
孔46には水平軸47が遊嵌されている。該水平
軸47にはガイドローラ48及びフツク49が
夫々回動自在に取付けられている。該フツク49
の内周面には例えばウレタンゴム等よりなる弾性
体50にて被覆されている。前記フツク49の先
端部にはピン51を介して押圧部材52が回動自
在に取付けられており、該押圧部材52の押圧面
には例えばウレタンゴム等よりなる弾性体53が
取付けられている。前記フツク49には連結部材
54を介して支持部材55が回動可能に取付けら
れ、該支持部材55には水平軸56を介してプー
リ57が回動自在に取付けられている。
The auxiliary rods 27 each have 2 spaces apart from each other.
Individual brackets 38 are attached. An arm 39 is detachably attached to the bracket 38 and is inclined appropriately toward the lower side of the sub-rod 27. A guide roller 41 is rotatably attached to the arm 39 via a horizontal shaft 40. There is. Brackets 42 are attached to the lower portions of the protruding ends of both movable arms 32 and 33, and guide rollers 4 are connected to these brackets 42 via horizontal shafts 43, respectively.
4 is rotatably attached. Brackets 4 are attached to the protruding ends of both movable arms 32 and 33, respectively.
5 is installed. The bracket 45 has an elongated hole 46 extending in the vertical direction, and a horizontal shaft 47 is loosely fitted into the elongated hole 46. A guide roller 48 and a hook 49 are rotatably attached to the horizontal shaft 47, respectively. The hook 49
The inner peripheral surface of is coated with an elastic body 50 made of, for example, urethane rubber. A pressing member 52 is rotatably attached to the tip of the hook 49 via a pin 51, and an elastic body 53 made of, for example, urethane rubber is attached to the pressing surface of the pressing member 52. A support member 55 is rotatably attached to the hook 49 via a connecting member 54, and a pulley 57 is rotatably attached to the support member 55 via a horizontal shaft 56.

なお、前記主杆体1の下面には油圧ユニツト5
8が取付けられており、該油圧ユニツト58にて
前記油圧シリンダ機構3及び油圧モータ37が制
御される。又、前記主杆体1の下面には4個のテ
レビカメラ59が可動可能に取付けられており、
これらテレビカメラ59は後述する鋼管吊上げ操
作を遠隔にて行なう際に前記フツク49の鋼管6
0に対する掛止具合を見るためのものである。
Note that a hydraulic unit 5 is installed on the lower surface of the main rod 1.
The hydraulic cylinder mechanism 3 and the hydraulic motor 37 are controlled by the hydraulic unit 58. Furthermore, four television cameras 59 are movably attached to the lower surface of the main rod 1.
These television cameras 59 are used to monitor the steel pipe 6 on the hook 49 when remotely performing a steel pipe lifting operation, which will be described later.
This is for checking the degree of engagement with respect to 0.

次に、上記構成装置にて例えば鋼管60を吊上
げて移動させる場合について説明する。なお、第
1図及び第2図中実線で示す図及び第4図は比較
的小径で短軸の鋼管60を吊上げる場合を示し、
第1図及び第2図中二点鎖線で示す図、第5図及
び第6図は比較的大径で長軸の鋼管60を吊上げ
る場合を示す。しかして、先ずクレーン等のフツ
クを主杆体1の吊金具2に引掛けて主杆体1を副
杆体27等と共に吊上げようとする鋼管60の真
上に持来たし、この後油圧シリンダ機構3のピス
トンロツド6をシリンダ4内に退入させてワイヤ
ロープ21を主杆体1内より繰出し得る状態にす
ると共に、油圧モータ37にてチエーン35を矢
印B方向に移動させて可動アーム32,33を副
杆体27より前記吊上げようとする鋼管60の長
さに対応する量以上突出させ、次いで前記クレー
ン等の作動にて主杆体1を副杆体27等と共に、
ガイドローラ41,44,48が鋼管60の外周
面に当接するまで下降させる。なお、ガイドロー
ラ41を支持しているアーム39は前記吊上げよ
うとする鋼管60の径に対応する長さを有するも
のを用いる。従つて、アーム39がガイドとなつ
て鋼管60の外周面に沿つて下に動き、鋼管60
に対する副杆体27の位置的な誤差を自動的に修
正する。しかして、油圧モータ37にてチエーン
35を矢印A方向に移動させて可動アーム32,
33を副杆体27内に退入させると共に、油圧シ
リンダ機構3のピストンロツド6をシリンダ4よ
り突出させてワイヤロープ21を主杆体1内に繰
込ませると、フツク49は鋼管60に対して第7
図に矢印P、矢印Q、矢印Rで夫々示す状態に順
次変位した後、第3図に示す状態で鋼管60を挾
持する。この際、フツク49はその内周面の弾性
体50を鋼管60の端縁でこすられながら第7図
で左に移動するが、移動の途上において水平軸4
7を長円孔46の上方に移動させて少し起立し、
押圧部材52を第3図で左方に倒した後、最終的
に第3図の状態となる。このため、押圧部材52
が的確に鋼管60の内面に接して鋼管60を挾持
することとなり、また吊上げ状態において押圧部
材52は、点ではなく面で鋼管50に接してこれ
を吊り上げるので、鋼管50がフツク49によつ
て部分的に変形するようなこともない。なお、可
動アーム32,33が副杆体27内に退入する
際、ガイドローラ44,48は鋼管60の外周面
を転動し、又フツク49の弾性体50及び押圧部
材52の弾性体53が鋼管60に圧接するから、
フツク49による鋼管60に対する挾持をスムー
スに行なわしめることができると共に、鋼管60
を損傷することもない。しかして、前記クレーン
等を作動させて主杆体1を副杆体27等と共に吊
上げると、上記の如くフツク49には挾持された
鋼管60は水平状態のまま吊上げられ、次いで前
記クレーン等の作動にて上記の如く吊上げた鋼管
60を所望位置の真上に持来した後下降せしめ、
この後油圧シリンダ機構3のピストンロツド6を
シリンダ4内に退入させてワイヤロープ21を主
杆体1より繰出し得る状態にすると共に、油圧モ
ータ37にてチエーン35を矢印B方向に移動さ
せて可動アーム32,33を副杆体27より突出
させることにより、フツク49による鋼管60に
対する挾持を解除せしめて、鋼管60を所望位置
に位置せしめるものである。
Next, a case will be described in which, for example, the steel pipe 60 is lifted and moved by the above-mentioned configuration device. Note that the figures shown by solid lines in FIGS. 1 and 2 and FIG. 4 show the case where a steel pipe 60 with a relatively small diameter and short axis is lifted.
1 and 2, and FIGS. 5 and 6 show the case where a relatively large-diameter, long-axis steel pipe 60 is lifted. First, a hook of a crane or the like is hooked onto the lifting fitting 2 of the main rod 1, and the main rod 1 is brought directly above the steel pipe 60 to be lifted together with the sub rod 27, etc., and then the piston rod of the hydraulic cylinder mechanism 3 is 6 into the cylinder 4 so that the wire rope 21 can be fed out from the main rod 1, and the hydraulic motor 37 moves the chain 35 in the direction of arrow B to move the movable arms 32, 33 to the sub rod 27. The steel pipe 60 to be lifted is made to protrude by an amount equal to or more than the length thereof, and then the main rod 1 is moved together with the secondary rod 27 etc. by the operation of the crane or the like.
The guide rollers 41, 44, and 48 are lowered until they come into contact with the outer peripheral surface of the steel pipe 60. The arm 39 supporting the guide roller 41 has a length corresponding to the diameter of the steel pipe 60 to be lifted. Therefore, the arm 39 acts as a guide and moves downward along the outer circumferential surface of the steel pipe 60.
The positional error of the sub-rod 27 relative to the position is automatically corrected. Then, the chain 35 is moved in the direction of arrow A by the hydraulic motor 37, and the movable arm 32,
33 is retracted into the secondary rod body 27, the piston rod 6 of the hydraulic cylinder mechanism 3 is made to protrude from the cylinder 4, and the wire rope 21 is retracted into the main rod body 1.
After being sequentially displaced to the states shown by arrows P, Q, and R in the figure, the steel pipe 60 is held in the state shown in FIG. 3. At this time, the hook 49 moves to the left in FIG. 7 while the elastic body 50 on its inner peripheral surface is rubbed by the edge of the steel pipe 60.
7 above the oblong hole 46 and stand up a little,
After the pressing member 52 is tilted to the left in FIG. 3, the state shown in FIG. 3 is finally reached. For this reason, the pressing member 52
Since the pressing member 52 contacts the inner surface of the steel pipe 60 accurately and clamps the steel pipe 60, and in the lifting state, the pressing member 52 contacts the steel pipe 50 not at a point but at a plane and lifts it, so that the steel pipe 50 is held by the hook 49. There is no possibility of partial deformation. When the movable arms 32 and 33 move into and out of the sub-rod 27, the guide rollers 44 and 48 roll on the outer peripheral surface of the steel pipe 60, and the elastic body 50 of the hook 49 and the elastic body 53 of the pressing member 52 roll. Because it is pressed against the steel pipe 60,
The steel pipe 60 can be smoothly held by the hook 49, and the steel pipe 60 can be held easily by the hook 49.
without damaging it. When the crane or the like is operated to lift the main rod 1 together with the sub-rod 27, etc., the steel pipe 60 held by the hook 49 as described above is lifted in a horizontal state, and then the crane or the like is operated. The steel pipe 60 lifted as described above is brought directly above the desired position and then lowered.
Thereafter, the piston rod 6 of the hydraulic cylinder mechanism 3 is retracted into the cylinder 4 so that the wire rope 21 can be fed out from the main rod 1, and the chain 35 is moved in the direction of the arrow B by the hydraulic motor 37 to move the movable arm. 32 and 33 are made to protrude from the sub-rod 27, thereby releasing the clamping of the steel pipe 60 by the hook 49 and positioning the steel pipe 60 at a desired position.

なお、上記の如くして鋼管60を移動させるも
のであるが、鋼管60を一度に2本宛移動させる
場合、第4図及び第5図に夫々示す如く、各対の
フツク49にて各鋼管60の両端部を夫々挾持せ
しめると共に、両鋼管60を相互に当接させた状
態で各対のガイドローラ41を各鋼管60の外周
面に夫々当接させ、この状態で2本の鋼管60を
一度に吊上げて移動させるものである。又、鋼管
60を1本宛移動させる場合、第6図に示す如
く、各対のフツク49にて鋼管60の両端部を
夫々挾持せしめると共に各対のガイドローラ41
を鋼管60の外周面にその両側より夫々当接さ
せ、この状態で鋼管60を吊上げて移動させても
よい。
Although the steel pipes 60 are moved as described above, when moving two steel pipes 60 at a time, each pair of hooks 49 is used to move each steel pipe 60 as shown in FIGS. 4 and 5, respectively. 60, and with both steel pipes 60 in contact with each other, each pair of guide rollers 41 is brought into contact with the outer peripheral surface of each steel pipe 60, and in this state, the two steel pipes 60 are held together. It is lifted and moved all at once. When moving the steel pipe 60 one by one, as shown in FIG.
may be brought into contact with the outer peripheral surface of the steel pipe 60 from both sides, and the steel pipe 60 may be lifted and moved in this state.

この様に、鋼管60の両端部をフツク49にて
挾持すると共に鋼管60の外周面にガイドローラ
41を当接させた状態で鋼管60を吊上げて移動
させるものであるから、移動時に鋼管60が動揺
しても落下することはなく、又上記の如く間隔保
持機構26が上下方向に伸縮自在であるから、吊
上装置自体が破損することもなく、従つて鋼管6
0を安全に且つ迅速に運搬せしめることができ
る。
In this way, since the steel pipe 60 is lifted and moved with both ends of the steel pipe 60 held between the hooks 49 and the guide rollers 41 in contact with the outer peripheral surface of the steel pipe 60, the steel pipe 60 is moved during movement. Even if the steel pipe 6 is shaken, it will not fall, and since the spacing mechanism 26 is vertically expandable and retractable as described above, the lifting device itself will not be damaged.
0 can be transported safely and quickly.

上述の如く、本発明になる吊上装置は、移動自
在とされた主杆体と、該主杆体の下方に離間対向
配設された副杆体と、該副杆体の両端部に夫々伸
縮自在に嵌装された一対の可動アームと、上下に
回動自在な押圧部材を先端部に備え前記可動アー
ムの先端部の上下方向に長い長円孔に水平軸を遊
嵌させて夫々取付けられたフツクと、該フツクと
前記主杆体の両端部とを夫々連結している伸縮可
能な連結部材と、前記副杆体に側部下方に向かい
傾斜して設けられたアームとを具備した構成とな
つているため、従来のようにいちいち作業員の手
をわずらわすことなく迅速に且つ安全に鋼管等の
長尺物を吊上げて運搬することができ、又両アー
ムは副杆体の長さ方向に伸縮自在であるから、長
さが異なる種々の長尺物を任意に吊上げて運搬す
ることができる。しかもフツクは、上下に回動自
在な先端部に備え、かつ可動アームの上下方向に
長に長円孔に水平軸を遊嵌させて取付けられてい
るので、フツクによる鋼管の挾持を的確になすこ
とができる上、押圧部材によて鋼管が変形するよ
うなこともない。またアームが鋼管の外周面に沿
つて動いて鋼管に対する副杆体の位置的な誤差を
自動的に修正するため、作業がやり易い等の特長
を有するものである。
As described above, the lifting device of the present invention includes a movable main rod, a sub-rod disposed below the main rod in a spaced-apart manner, and a sub-rod that is telescopically fitted into both ends of the sub-rod. a pair of movable arms equipped with the movable arm, and a hook that has a pressing member that can freely rotate up and down at the distal end thereof and that is attached by loosely fitting a horizontal shaft into an elongated hole that is elongated in the vertical direction at the distal end of the movable arm. , the hook is configured to include an extendable connecting member connecting the hook and both ends of the main rod, and an arm provided on the secondary rod so as to be inclined toward the lower side of the rod. , it is possible to quickly and safely lift and transport long objects such as steel pipes without bothering the operator's hands as in the past, and both arms are extendable and retractable in the length direction of the sub-rod. Because of this, it is possible to arbitrarily lift and transport various long objects of different lengths. Furthermore, the hook has a vertically rotatable tip and is attached with a horizontal shaft loosely fitted into an elongated hole in the vertical direction of the movable arm, making it possible to accurately hold the steel pipe with the hook. In addition, the steel pipe will not be deformed by the pressing member. Further, since the arm moves along the outer peripheral surface of the steel pipe and automatically corrects any positional error of the sub-rod relative to the steel pipe, it has the advantage of being easy to work with.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の一実施例を示し、第1図は平面
図、第2図は正面図、第3図は第2図の円部分
の詳細図、第4図は比較的小径の2本の鋼管を一
度に吊上げた状態における側面図、第5図は比較
的大径の2本の鋼管を一度に吊上げた状態におけ
る側面図、第6図は比較的大径の1本の鋼管を吊
上げた状態における側面図、第7図はフツクの作
動を説明するための図である。 1……主杆体、21……ワイヤロープ、27…
…副杆体、32,33……可動アーム、49……
フツク。
The drawings show one embodiment of the present invention; FIG. 1 is a plan view, FIG. 2 is a front view, FIG. 3 is a detailed view of the circular portion of FIG. 2, and FIG. 4 is a diagram showing two relatively small diameter Figure 5 is a side view of steel pipes being lifted at once; Figure 5 is a side view of two relatively large-diameter steel pipes being lifted at once; Figure 6 is a side view of one relatively large-diameter steel pipe being lifted. A side view in this state, FIG. 7, is a diagram for explaining the operation of the hook. 1... Main rod, 21... Wire rope, 27...
...Secondary rod, 32, 33...Movable arm, 49...
Hutsuku.

Claims (1)

【特許請求の範囲】[Claims] 1 移動自在とされた主杆体と、該主杆体の下方
に離間対向配設された副杆体と、該副杆体の両端
部に夫々伸縮自在に嵌装された一対の可動アーム
と、上下に回動自在な押圧部材を先端部に備え前
記可動アームの先端部の上下方向に長い長円孔に
水平軸を遊嵌させて夫々取付けられたフツクと、
該フツクと前記主杆体の両端部とを夫々連結して
いる伸縮可能な連結部材と、前記副杆体に側部下
方に向かい傾斜して設けられたアームとを具備し
てなることを特徴とする吊上装置。
1. A movable main rod, a sub-rod disposed below the main rod and facing each other at a distance, a pair of movable arms telescopically fitted to both ends of the sub-rod, and a pair of movable arms that can be rotated up and down. hooks each having a movable pressing member at its tip and attached with a horizontal shaft loosely fitted into a vertically elongated oblong hole at the tip of the movable arm;
It is characterized by comprising an extendable connecting member that connects the hook and both ends of the main rod, and an arm that is provided on the auxiliary rod so as to be inclined toward the lower side of the rod. Lifting equipment.
JP11715679A 1979-09-12 1979-09-12 Hoist Granted JPS5643187A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11715679A JPS5643187A (en) 1979-09-12 1979-09-12 Hoist

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11715679A JPS5643187A (en) 1979-09-12 1979-09-12 Hoist

Publications (2)

Publication Number Publication Date
JPS5643187A JPS5643187A (en) 1981-04-21
JPS6116718B2 true JPS6116718B2 (en) 1986-05-01

Family

ID=14704836

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11715679A Granted JPS5643187A (en) 1979-09-12 1979-09-12 Hoist

Country Status (1)

Country Link
JP (1) JPS5643187A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0391122A (en) * 1989-09-04 1991-04-16 Sanyo Electric Co Ltd Objective lens driving device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58197189A (en) * 1982-05-12 1983-11-16 株式会社日立製作所 Device for positioning hanging beam
JPH0211430Y2 (en) * 1985-08-28 1990-03-22

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0391122A (en) * 1989-09-04 1991-04-16 Sanyo Electric Co Ltd Objective lens driving device

Also Published As

Publication number Publication date
JPS5643187A (en) 1981-04-21

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