JPS61151305A - Elevator type working barge - Google Patents
Elevator type working bargeInfo
- Publication number
- JPS61151305A JPS61151305A JP27338884A JP27338884A JPS61151305A JP S61151305 A JPS61151305 A JP S61151305A JP 27338884 A JP27338884 A JP 27338884A JP 27338884 A JP27338884 A JP 27338884A JP S61151305 A JPS61151305 A JP S61151305A
- Authority
- JP
- Japan
- Prior art keywords
- leg
- rod
- barge
- work barge
- work
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
- E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
- E02B17/0836—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with climbing jacks
- E02B17/0863—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with climbing jacks with rack and pawl mechanism
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は昇降式作業台船の構造に関し、特に、海底に自
立させた複数本の脚に沿って作業台船を海面から安全空
間へ上昇させる時間及び安全空間から海面へ降下させる
に要する時間を大幅に軽減することができ、更に昇降ス
トロークを大きくとることのできる昇降式作業台船の構
造に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the structure of an elevating work barge, and in particular, the present invention relates to the structure of an elevating work barge, and in particular, the work barge is raised from the sea surface to a safe space along a plurality of legs that are independent on the seabed. The present invention relates to a structure of an elevating work barge that can significantly reduce the time required to lower the ship from a safe space to the sea surface, and also allows for a large lifting stroke.
海底に自立させた複数本（通常３本乃至４本）の脚に沿
って昇降可能な昇降式作業台船に使用される昇降機構と
しては各種形式のものがあるが、その中でも構造が簡単
で且つ製造コストが低いことからピンアンドスロット方
式の昇降機構が使用されている。このピンアンドスロッ
ト方式は、前記脚に沿って所定ピッチ間隔で形成された
スロットにピンを挿通し、該ピンを利用して作業台船を
昇降するものである。There are various types of elevating mechanisms used in elevating work platforms that can be raised and lowered along multiple (usually 3 to 4) legs that stand on the seabed, but among them, the structure is simple. A pin-and-slot lifting mechanism is used because of its low manufacturing cost. In this pin-and-slot method, pins are inserted into slots formed at predetermined pitch intervals along the legs, and the work barge is raised and lowered using the pins.
しかして、従来のピンアンドスロット方式の昇降機構で
は、各スロットの一つ一つに対し上下二本のピンを差し
込んだり引き抜いたりしながら尺取り主成に作業台船を
昇降させていたので、昇降作動が極めて緩慢であり多大
の労力及び時間を要するという問題があった。このため
、洋上作業の前後に多大の準備時間を要し、しかも作業
台船を水面から水切りして安全空間へ上昇させる間或は
安全空間から水面へ完全に降ろして自己浮力で浮かぶま
での間に事故発生の危険性が高いという欠点があった。However, with the conventional pin-and-slot type lifting mechanism, the work barge was raised and lowered mainly by taking measures by inserting and pulling out the two upper and lower pins into each slot. There was a problem in that the lifting and lowering operation was extremely slow and required a great deal of labor and time. For this reason, a large amount of preparation time is required before and after offshore work, and also during the time it takes to drain the work barge from the water surface and raise it to a safe space, or until it is completely lowered from a safe space to the water surface and floats by its own buoyancy. The disadvantage was that there was a high risk of accidents occurring.
尚、前記安全空間とは、作業台船に波浪による外力が及
ばない程海面上充分高い位置のことである。Note that the safe space is a position sufficiently high above the sea surface that external forces due to waves do not reach the work barge.
以上の様な欠点を解決するものとして、本出願人は先に
「脚の水面上方位置から所定長さの口。In order to solve the above-mentioned drawbacks, the present applicant previously proposed a ``mouth having a predetermined length from the position above the water surface of the legs.
ドを懸垂させ、該ロッドを作業台船に設置した昇降機器
に嵌通させ、該昇降機器を前記ロッドに沿って上下動さ
せることＫより前記作業台船を上下動させることを特徴
とする昇降式作業台船」を提案した（特願昭５８−９４
９７５号）。The lifting and lowering method is characterized in that the work barge is moved up and down by suspending the bar, fitting the rod into a lifting device installed on the work barge, and moving the lifting device up and down along the rod. proposed a type work barge (patent application 1983-1994).
No. 975).
しかして、この昇降式作業台船においては、従来の多く
のピンアンドスロット方式昇降機構を有する昇降式作業
台船におけると同様に、作業台船が水面に浮いた状態で
脚を海底に投入する際に作業台船上に設置されたウィン
チでワイヤを巻き出すことにより各脚を降下させること
が行なわれる。Therefore, in this elevating type work barge, as in many conventional elevating type work barges having a pin-and-slot type elevating mechanism, the legs are inserted into the seabed while the work barge is floating on the water surface. At this time, each leg is lowered by unwinding the wire with a winch installed on the work barge.
従って、係留ウィンチを兼用するとしてもその分ウィン
チ及びワイヤ等に配慮しておかなければならず、また海
水に漬るワイヤ等の維持・管理が必要であるという問題
があった。Therefore, even if it is used as a mooring winch, consideration must be given to the winch, wires, etc., and the wires, etc. that are immersed in seawater must be maintained and managed.
また、この作業台船においては昇降機器による作業台船
の昇降ストロークはロッドの長さにより制限され、より
長い昇降ストロークを必要とする水域においては使用す
ることができないという問題があった。Further, in this work barge, the lifting stroke of the work barge by the lifting device is limited by the length of the rod, and there is a problem that it cannot be used in water areas where a longer lifting stroke is required.
本発明によれば、以上の如き従来技術の問題点を解決す
るものとして、脚の水面上の適宜の高さから所定長さの
ロッドを懸垂させ、該ロッドを作業台船上に該作業台船
に対し傾斜自在に設置した昇降機器に嵌通させ、該昇降
機器を前記ロッドに沿って上下動させ、また前記昇降機
器と前記脚との相対位置を維持した状態で前記脚に対す
る前記ロッドの懸垂位置を掛け換えることにより、前記
作業台船を上下動させることを特徴とする、昇降式作業
台船が提供される。According to the present invention, in order to solve the problems of the prior art as described above, a rod of a predetermined length is suspended from an appropriate height above the water surface of the legs, and the rod is suspended above the work barge. The rod is fitted into a lifting device installed so as to be able to tilt freely, the lifting device is moved up and down along the rod, and the rod is suspended relative to the leg while maintaining the relative position of the lifting device and the leg. An elevating type work barge is provided, characterized in that the work barge can be moved up and down by changing its position.
以下、図面を参照しながら本発明の具体的実施例を説明
する。Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.
第１図は本発明昇降式作業台船の一実施例の主要部分を
示す縦断面図であり、第２図は昇降機器の縦断面図であ
り、第３図は本発明昇降式作業台船の一実施例の全体的
構成を示す側面図である。FIG. 1 is a vertical sectional view showing the main parts of an embodiment of the lifting type work barge of the present invention, FIG. 2 is a longitudinal sectional view of the lifting equipment, and FIG. 3 is a vertical sectional view of the lifting type work barge of the present invention. FIG. 2 is a side view showing the overall configuration of one embodiment.
第３図に示される様に１作業台船ＩＫはこれを上下方向
に嵌通する複数本の脚２が設けられている。本実施例に
おいては作業台船１はほぼ正方形の平面形状を有してお
り、その四隅部にそれぞれ脚２が設けられており、第３
図にはそのうちの２本が表われている。作業台船１から
は腰脚２を降下させて海底５に自立させることができる
様になっている。As shown in FIG. 3, one work barge IK is provided with a plurality of legs 2 that fit through the barge IK in the vertical direction. In this embodiment, the work barge 1 has a substantially square planar shape, and legs 2 are provided at each of its four corners.
Two of them are shown in the figure. From the work barge 1, the waist legs 2 can be lowered to stand on the seabed 5.
洋上で作業をする際には、これに先立って、第３図の状
態（作業台船１が水面６に浮遊している状態）から海底
に自立させた各脚２に沼って作業台船ｌを水面上の安全
空間まで上昇させる必要がある。又、作業完了後では、
これとは逆の手順で、作業台船ｌを水面６上へ降下させ
、しかる後各脚２を上昇させて水面６上を移動可能な状
態として、目的地へ曳航可能にする必要がある。When carrying out work at sea, the work barge must be moved from the state shown in Figure 3 (the state in which the work barge 1 is floating on the water surface 6) to each leg 2 that is independent on the seabed. It is necessary to raise l to a safe space above the water surface. Moreover, after the work is completed,
In the reverse procedure, it is necessary to lower the work barge 1 onto the water surface 6, and then raise each leg 2 to make it movable on the water surface 6 so that it can be towed to the destination.
このように、作業水域においては、海底に自立させた複
数本の脚２に？６りて作業台船１を昇降させる必要があ
り、作業台船１上にはこのための昇降装置７が各脚ごと
に設けられている。In this way, in the working area, multiple legs 2 that are independent on the seabed are used. It is necessary to raise and lower the work barge 1 by lifting the work barge 1, and a lifting device 7 for this purpose is provided on each leg of the work barge 1.
前記昇降装置７の構造例を、第１図及び第２図を参照し
て以下説明する。A structural example of the lifting device 7 will be described below with reference to FIGS. 1 and 2.
作業台船１上の各脚２のまわりにはオンデツキガーダ−
８が固定され、このオンデツキガーダーには脚２の両側
に一対の昇降機器９が設置されている。この昇降機器９
のオンデツキガーダ−８への取付けは自在継手３］７Ｃ
よりなされており、従って昇降機器９はオンデツキガー
ダ−８に対し傾斜することができる。図示の昇降機器９
はセンターホール型ツヤツキの構造を有するベアロック
ジヤツキ（センターホールを貫通するロッドととまりば
ねで強力にロックしたりロッドを伸ばしたり縮めたりで
きるもの）である。各昇降機器９には上下方向にロッド
１０が嵌合されている。On deck girders are installed around each leg 2 on the work barge 1.
8 is fixed, and a pair of lifting devices 9 are installed on both sides of the legs 2 on this on-deck girder. This lifting device 9
The installation to the on-deck girder 8 is done using the universal joint 3]7C.
Therefore, the lifting device 9 can be tilted with respect to the on-deck girder 8. Illustrated lifting equipment 9
is a bare lock jack (a rod that passes through the center hole and a stopper spring that allows for strong locking and the ability to extend or retract the rod), which has a center hole type glossy structure. A rod 10 is fitted into each lifting device 9 in the vertical direction.
各ロッド１０の上端は架台１４に懸垂されている。この
ロッド１０の架台１４への懸垂は自在継手３７を介して
なされており、従ってロッド１０は架台１４に対し傾斜
するごとができる。架台１４には脚２に関し対向する位
置に２つのツメ３０が水平方向に脚２の方に向って移動
可能に設けられている。このツメ３０の移動は油圧シリ
ンダ３３によりコントロールされる。脚２には上記ツメ
３０と嵌合するための溝３２が上下方向に所定のピッチ
間隔ごとに形成されている。油圧シリンダ３３によりツ
メ３０と溝３２との嵌合を解除することにより架台１４
は脚２に沼って上下移動可能となる。The upper end of each rod 10 is suspended from a pedestal 14. The rod 10 is suspended from the pedestal 14 through a universal joint 37, so that the rod 10 can be tilted relative to the pedestal 14. Two claws 30 are provided on the pedestal 14 at opposing positions with respect to the leg 2 so as to be movable horizontally toward the leg 2. The movement of this pawl 30 is controlled by a hydraulic cylinder 33. Grooves 32 for engaging the claws 30 are formed in the leg 2 at predetermined pitch intervals in the vertical direction. By releasing the fitting between the claw 30 and the groove 32 using the hydraulic cylinder 33, the mount 14 is removed.
is attached to leg 2 and can move up and down.
前記ペアロックジャ、キで構成された昇降機器９はオン
デツキが−ダー８に自在継手３５により傾斜自在に支持
されており、シリンダ１９と該シリンダ内に嵌装された
♂スト／２０とを備え、これらシリンダ及びピストンの
夫々には前記ロッド１０と嵌合するペア口、り２１及び
２２が設けられている。これらのベアロック２１，２２
は、ロッド１０に対し締り嵌めされるロック状態とロッ
ド１０に溢って移動可能なアン口、り状態とのいずれか
に制御可能にされている。このロック状態とアン口、り
状態とは通常油圧によって制御されるものであり、油圧
を作動させた場合にロック状態を呈する加圧ロック型と
油圧を解除した時にロック状態を呈する無圧口、り型と
の２方式があり、図示の各ベアロック２１．２２として
はいずれの方式のものを使用することも可能である。又
、前記シリンダ１９に対しては矢印Ａ方向及び矢印Ｂ方
向のいずれかから油圧が加えられ、これによってピスト
ン２０の作動を制御する。The elevating device 9, which is composed of the paired lockjar and the key, has an on-deck supported on the decker 8 so as to be tiltable by a universal joint 35, and includes a cylinder 19 and a male striker 20 fitted in the cylinder. Each of these cylinders and pistons is provided with a pair of holes 21 and 22 that fit into the rod 10. These bear locks 21, 22
can be controlled to either a locked state in which it is tightly fitted to the rod 10 or an open state in which it can be moved over the rod 10. The locked state, unopened state, and closed state are usually controlled by hydraulic pressure, and there are two types: a pressurized lock type that exhibits a locked state when hydraulic pressure is applied, and a non-pressure type that exhibits a locked state when hydraulic pressure is released. There are two types of bearing locks, a double type, and either type can be used for each of the illustrated bear locks 21 and 22. Further, hydraulic pressure is applied to the cylinder 19 from either the direction of arrow A or the direction of arrow B, thereby controlling the operation of the piston 20.
作業台船ｌには脚２に形成された溝３２に対応する位置
に２つのツメ３１が水平方向に脚２の方に向って移動可
能に設けられている。このツメ３１の移動は油圧シリン
ダ３４によりコントロールサれる。油圧シリンダ３４に
よりツメ３１と溝３２との嵌合を解除するととＫより作
業台船１は脚２に沿って上下移動可能となる。Two claws 31 are provided on the work barge 1 at positions corresponding to grooves 32 formed in the leg 2 so as to be movable in the horizontal direction toward the leg 2. The movement of this claw 31 is controlled by a hydraulic cylinder 34. When the fitting between the claw 31 and the groove 32 is released by the hydraulic cylinder 34, the work barge 1 can move up and down along the legs 2 from K.
本実施例昇降式作業台船における昇降動作につき以下説
明する。The elevating and lowering operations of the elevating type work barge of this embodiment will be explained below.
作業台船１は脚２を引上げた状態で作業水域まで曳航さ
れる。この脚引上げ状態はツメ３１を脚２の適宜の位置
の溝３２に嵌合させておくことにより行なわれる。The work barge 1 is towed to the work area with its legs 2 raised. This leg-up state is achieved by fitting the claw 31 into a groove 32 at an appropriate position on the leg 2.
次に、作業台船１に対する脚２の降下が行なわれる。こ
の脚２の降下に当っては、先ずツメ３０を脚２の適宜の
位置の溝３２に嵌合させた後にツメ３１の溝３２に対す
る嵌合を解除し、次に昇降機器９を作動せしめる。Next, the legs 2 are lowered to the work barge 1. To lower the leg 2, the claw 30 is first fitted into the groove 32 at an appropriate position on the leg 2, and then the claw 31 is disengaged from the groove 32, and then the lifting device 9 is activated.
この時点での昇降機器９の動作は次の様にして行なわれ
る。即ち、先ずピストン２０側のベアロック２２をロッ
ク状態としシリンダ１９側のベアロック２１をアンロッ
ク状態として矢印Ａから油圧を供給することによりピス
トン２０を降下させ、そのストローク分だけロッド１０
を降下させる。The operation of the lifting device 9 at this point is performed as follows. That is, first, the bear lock 22 on the piston 20 side is in a locked state, the bear lock 21 on the cylinder 19 side is in an unlocked state, and the piston 20 is lowered by supplying hydraulic pressure from arrow A, and the rod 10 is lowered by that stroke.
descend.
次いで、ベア口、′り２１をロック状態にしベアロック
２２をアンロック状態として矢印Ｂから油圧を供給して
ピストン２０のみを上昇させる。次いで、再びペア口、
り２２をロック状態としペア口、り２１をアン口、り状
態とし矢印Ａから油圧を供給することによりピストン２
０とともにロッド１０を１ストロ一ク分降下させる。こ
のような動作を適当回数くり返すことによりロッド１０
を所定ストローク分下方へ伸ばす。Next, the bearing port 21 is locked, the bearing lock 22 is unlocked, and hydraulic pressure is supplied from arrow B to raise only the piston 20. Next, pair mouth again,
With the piston 22 in the locked state and the piston 21 in the open and closed state, the piston 2 is
0, the rod 10 is lowered by one stroke. By repeating this operation an appropriate number of times, the rod 10
extend downward by a predetermined stroke.
かくして、架台１４とともに脚２を所定ストローク降下
させた後、今度はツメ３１を脚２の適宜の位置の溝３２
に嵌合させ脚２を作業台船１に固定した後にツメ３０の
溝３２に対する嵌合を解除し、次に昇降機器９を作動せ
しめる。After lowering the leg 2 together with the pedestal 14 by a predetermined stroke, the claw 31 is inserted into the groove 32 at an appropriate position on the leg 2.
After the legs 2 are fitted to the work barge 1, the claws 30 are disengaged from the grooves 32, and the lifting device 9 is operated.
この時点での昇降機器９の動作は次の様にして行なわれ
る。即ち、先ずピストン２０側のペアロツク２２をロッ
ク状態としシリンダ１９側のベアロック２１をアンロッ
ク状態として矢印Ｂから油圧を供給することによりピス
トン２０を上昇させ、そのストローク分だけロッド１０
を上昇させる。The operation of the lifting device 9 at this point is performed as follows. That is, first, the pair lock 22 on the piston 20 side is locked, the bear lock 21 on the cylinder 19 side is unlocked, and the piston 20 is raised by supplying hydraulic pressure from arrow B, and the rod 10 is moved up by the stroke.
to rise.
次いで、ペア口、り２１をロック状態にしベア口、り２
２をアン口、り状態として矢印Ａから油圧を供給してピ
ストン２０のみを降下させる。次いで、再びベアロック
２２を口、り状態としベアロック２１をアンロック状態
とし矢印Ｂから油圧を供給することによりピストン２０
とともにロッド１０を１ストロ一ク分上昇させる。この
ような動作を適当回数くり返すことＫよりロッド１０を
所定ストローク分即ち上記ロッド１０の下方への移動の
ときと同じストローク分上方へ伸ばす。Next, put the pair port 21 into the locked state and close the bare port 21.
2 is in the open state and oil pressure is supplied from arrow A to lower only the piston 20. Next, the bear lock 22 is brought into the open state again, the bear lock 21 is brought into the unlocked state, and the piston 20 is turned on by supplying hydraulic pressure from the arrow B.
At the same time, the rod 10 is raised by one stroke. By repeating this operation an appropriate number of times, the rod 10 is extended upward by a predetermined stroke, that is, the same stroke as when the rod 10 was moved downward.
かくして、架台１４をロッド１０とともに所定ストロー
ク上昇させた後に、今度はツメ３０を脚２の適宜の位置
の溝３２に嵌合させた後にツメ３１の溝３２に対する嵌
合を廃除する。In this way, after the pedestal 14 is raised together with the rod 10 by a predetermined stroke, the claws 30 are fitted into the grooves 32 at appropriate positions on the legs 2, and then the claws 31 are disengaged from the grooves 32.
以下、同様の操作を繰返すことにより、脚２を海底５に
着けることができる。Thereafter, by repeating the same operation, the legs 2 can be attached to the seabed 5.
次いで、作業台船１を脚２に沿って上昇させることによ
り安全空間１１へと移動させる。この作業台船１の上昇
は上記脚２の着底の場合と全く同じ手順で行なわれる。Next, the work barge 1 is moved to the safe space 11 by being raised along the legs 2. This lifting of the work barge 1 is carried out in exactly the same procedure as in the case of landing the legs 2 on the bottom.
作業完了後、作業台船１を安全空間１１から水面６へ降
下させる場合及び脚２を海底２から離脱させ上昇させる
場合には上記脚２の降下及び作業台船１の上昇の場合と
逆の手順を行なえばよい。When the work barge 1 is lowered from the safety space 11 to the water surface 6 after the work is completed, and when the legs 2 are detached from the seabed 2 and raised, the procedure for lowering the legs 2 and raising the work barge 1 is reversed. Just follow the steps.
以上の如き本発明によれば、ロッドの長さを越える距離
にわたりて作業台船の昇降を行なうことができ、また作
業台船から脚を海底へと降下させたり海底から上昇させ
たりする動作をも上記作業台船の昇降と同様にして連続
して行なうことができる。このため、気象及び海象の変
化に応じて必要な高さに作業台船を保持することができ
、使用海象条件が狭い範囲に限定されない。また１脚の
投入・着底及び船体が着水した後の脚の上昇にウィンチ
及びワイヤを使用する必要がなくなり、このため係留ウ
ィンチも簡素化され、ワイヤ等の維持・管理の負担も軽
減される。更に、本発明によれば、外力による脚と作業
台船との水平方向の位置ずれに基づき昇降機器Ｋかかる
カや昇降機器自体の動作におけるロッドの移動誤差に基
づき口。According to the present invention as described above, the work barge can be raised and lowered over a distance exceeding the length of the rod, and the legs of the work barge can be lowered to the seabed or raised from the seabed. This can also be carried out continuously in the same manner as the lifting and lowering of the work barge. Therefore, the work barge can be maintained at a required height according to changes in weather and sea conditions, and the sea conditions in which it is used are not limited to a narrow range. In addition, there is no longer a need to use a winch or wire to insert one leg, land it on the bottom, or raise the leg after the hull has landed in the water, which simplifies the mooring winch and reduces the burden of maintaining and managing wires, etc. Ru. Further, according to the present invention, the lifting device K is moved due to a horizontal positional deviation between the legs and the work barge due to an external force, or due to a movement error of the rod in the operation of the lifting device itself.
ドＫかかる曲げモーメントを逃がすことができ、高精度
を維持する必要のある昇降機器の精度低下及び損傷を防
止することができる。This allows the bending moment to be released, and it is possible to prevent deterioration in accuracy and damage to lifting equipment that needs to maintain high accuracy.
第１図は本発明昇降式作業台船の主要部分を示す縦断面
図であり、第２図は昇降機器の縦断面図であり、第３図
は本発明昇降式作業台船の全体的構成を示す側面図であ
る。
１：作業台船、２：脚、８：オンデツキガーダ−，９：
昇降機器、１ｏ：ロッド、１４：架台、１９ニジリンダ
、２０：ピストン、２１，２２：ベア口、り、３０，３
１：ツメ、３３，３４：油圧シリンダ、３５ 、３７
：自在継手。
Ａ１−FIG. 1 is a vertical cross-sectional view showing the main parts of the lifting type work barge of the present invention, FIG. 2 is a vertical cross-sectional view of the lifting equipment, and FIG. 3 is the overall configuration of the lifting type work barge of the present invention. FIG. 1: Work barge, 2: Legs, 8: On-deck girder, 9:
Lifting equipment, 1o: Rod, 14: Frame, 19 Niji cylinder, 20: Piston, 21, 22: Bare mouth, Ri, 30, 3
1: Claw, 33, 34: Hydraulic cylinder, 35, 37
: Universal joint. A1-
Claims (3)
昇降式作業台船において、前記脚の水面上の適宜の高さ
から所定長さのロッドを懸垂させ、該ロッドを作業台船
上に該作業台船に対し傾斜自在に設置した昇降機器に嵌
通させ、該昇降機器を前記ロッドに沿って上下動させ、
また前記昇降機器と前記脚との相対位置を維持した状態
で前記脚に対する前記ロッドの懸垂位置を掛け換えるこ
とにより、前記作業台船を上下動させることを特徴とす
る、昇降式作業台船。(1) In an elevating work platform that can be raised and lowered along a plurality of legs that stand on the seabed, a rod of a predetermined length is suspended from an appropriate height above the water surface of the legs, and the rod is attached to the work platform. Fitted into a lifting device installed on the ship so that it can tilt freely with respect to the work barge, and moving the lifting device up and down along the rod,
Further, the elevating work barge is characterized in that the work barge is moved up and down by changing the suspension position of the rod relative to the leg while maintaining the relative position of the elevating device and the leg.
されており、脚に対する架台の係止位置を変えることに
より前記ロッド懸垂位置の掛け換えがなされる、特許請
求の範囲第１項の昇降式作業台船。(2) A pedestal is locked to the leg and a rod is suspended from the pedestal, and the rod suspension position is changed by changing the locking position of the pedestal to the leg. Liftable work barge.
になされている、特許請求の範囲第２項の昇降式作業台
船。(3) The elevating work barge according to claim 2, wherein the rod is suspended from the pedestal so that it can be tilted freely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27338884A JPS61151305A (en) | 1984-12-26 | 1984-12-26 | Elevator type working barge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27338884A JPS61151305A (en) | 1984-12-26 | 1984-12-26 | Elevator type working barge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61151305A true JPS61151305A (en) | 1986-07-10 |
Family
ID=17527198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27338884A Pending JPS61151305A (en) | 1984-12-26 | 1984-12-26 | Elevator type working barge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61151305A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5640216A (en) * | 1979-09-10 | 1981-04-16 | Toshiba Corp | On-load tap adjusting device |
-
1984
- 1984-12-26 JP JP27338884A patent/JPS61151305A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5640216A (en) * | 1979-09-10 | 1981-04-16 | Toshiba Corp | On-load tap adjusting device |
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