JP2002030654A - Transporting and erecting machine for cage - Google Patents

Transporting and erecting machine for cage

Info

Publication number
JP2002030654A
JP2002030654A JP2000217892A JP2000217892A JP2002030654A JP 2002030654 A JP2002030654 A JP 2002030654A JP 2000217892 A JP2000217892 A JP 2000217892A JP 2000217892 A JP2000217892 A JP 2000217892A JP 2002030654 A JP2002030654 A JP 2002030654A
Authority
JP
Japan
Prior art keywords
frame
cage
transporting
reinforced
hanging
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.)
Granted
Application number
JP2000217892A
Other languages
Japanese (ja)
Other versions
JP3725010B2 (en
Inventor
Katsuhiro Okuyama
勝広 奥山
Masahiro Miyazaki
正宏 宮崎
Toshio Nakamura
俊男 中村
Hideo Kuroda
英夫 黒田
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.)
Hitachi Construction Machinery Co Ltd
Obayashi Corp
Original Assignee
Hitachi Construction Machinery Co Ltd
Obayashi 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 Hitachi Construction Machinery Co Ltd, Obayashi Corp filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP2000217892A priority Critical patent/JP3725010B2/en
Publication of JP2002030654A publication Critical patent/JP2002030654A/en
Application granted granted Critical
Publication of JP3725010B2 publication Critical patent/JP3725010B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a reinforcing cage transporting and erecting machine suitable for use in the construction work of an underground continuous wall, particularly in a low-head space, whereby the operation of hoisting and transporting the cage 3 for the underground continuous wall at a storage place for the reinforcing cage and then hoisting it down into an excavated groove 1 can be performed by means of a single machine and the efficiency of erecting work can be remarkably enhanced, with the maximum lift of the machine being adjustable for convenience. SOLUTION: The cage transporting and erecting machine includes a self- traveling crawler 15; a hoisting frame 14 provided on the crawler 15, with the lower end of the frame brought close to the surface of the ground and the upper end of the frame driven to extend in height direction to render the overall height of the frame adjustable according to the lift required; and a hoisting point 53 driven to rise or fall as it is guided in height direction to the frame 41 to hoist the reinforcing cage 3 up and down in an erected attitude, with the upper end of the frame 41 indicating the maximum lift.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、地中連続壁用の鉄
筋篭を鉄筋篭置場で吊り上げて、運搬し、掘削溝内に吊
り下ろして建て込む鉄筋篭運搬建て込み機に関し、特に
低空頭空間での地中連続壁工事における鉄筋篭の建て込
み作業能率を著しく向上できて、利便性に富む鉄筋篭運
搬建て込み機に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcement cage transporting and building machine for lifting and transporting a reinforcement cage for an underground continuous wall at a reinforcement cage storage place, and suspending the reinforcement cage in an excavation trench. The present invention relates to a reinforced cage transporting / building machine, which is capable of significantly improving the efficiency of erection of reinforced cage in underground continuous wall construction in space and is highly convenient.

【0002】[0002]

【従来の技術】作業空間に高さ制限がある低空頭空間で
の地中連続壁工事では、その高さ制限のため地中連続壁
用の掘削溝に鉄筋篭を一度に建て込めない。このため、
鉄筋篭はその高さ方向(掘削溝の深さ方向)に複数分割
されていて、これら分割形成された鉄筋篭を鉄筋篭置場
から掘削溝まで個々に運搬して前記溝内に建て込み、そ
の鉄筋篭の下端と、先行して同溝内に建て込んである鉄
筋篭の上端とを継ぎ足して、これら作業を繰り返して深
さ方向に連続した鉄筋篭を構築している。
2. Description of the Related Art In underground continuous wall construction in a low head space where the height of a work space is limited, a steel cage cannot be built at one time in an excavation groove for an underground continuous wall due to the height limitation. For this reason,
The reinforced cage is divided into a plurality in the height direction (the depth direction of the excavation groove), and these divided reinforced cages are individually transported from the reinforced concrete storage yard to the excavation groove and built into the groove. By adding the lower end of the steel cage and the upper end of the steel cage previously built in the groove, these operations are repeated to construct a steel cage continuous in the depth direction.

【0003】そして、鉄筋篭置場の鉄筋篭の吊り上げ、
運搬、前記掘削溝内への吊り下ろしからなる建て込み作
業は、詳細には以下の作業の繰り返しによっておこなわ
れている。 所定の鉄筋篭置場に載置された鉄筋篭を、起重機な
どによって引き起こして吊り上げて専用の運搬台車に載
せる。 運搬台車にて建て込み場所である掘削溝の近傍に配
された後記建て込み機まで運搬する。 そして、図7に示すような、掘削溝1上方に同溝1
に沿って延設された梁91と、これの長手方向に移動自
在に懸吊されたホイスト93とからなる建て込み機95
を用いて、該ホイスト93によって運搬台車から鉄筋篭
3を引き起こして吊り上げ、鉄筋篭3を吊った状態で溝
1上を移動し、所期の溝1内に鉄筋篭3を吊り下ろす。
[0003] Then, lifting of the steel cage in the steel cage storage area,
The work of transporting and hanging in the excavation trench is performed in detail by repeating the following work. The reinforced cage placed in a predetermined reinforced basket storage place is lifted by a hoist or the like and lifted and placed on a dedicated transport cart. It will be transported to the built-in machine, which is located near the excavation trench where the building is to be built, using a transport vehicle. Then, as shown in FIG.
Builder 95 comprising a beam 91 extending along and a hoist 93 movably suspended in the longitudinal direction of the beam 91.
By using the hoist 93, the reinforced basket 3 is raised from the transport trolley by the hoist 93, moved on the groove 1 with the reinforced basket 3 suspended, and the reinforced basket 3 is hung in the intended groove 1.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、このや
り方では、起重機、運搬台車、建て込み機の三つの機器
の間で鉄筋篭の受け渡し作業が発生し、つまり鉄筋篭の
吊り上げ下ろし作業が多くて時間がかかる。また、これ
ら作業は鉄筋篭毎に発生するため、特に数多くの鉄筋篭
を建て込む低空頭空間での地中連続壁工事にあっては、
建て込み作業の能率を著しく下げる。
However, in this method, the work of transferring the reinforced basket between the three devices of the hoist, the transporting trolley, and the erection machine occurs, that is, the work of lifting and lowering the reinforced basket is time consuming. It takes. In addition, since these operations occur for each reinforced cage, especially in underground continuous wall construction in a low head space where many reinforced cages are built,
Significantly lowers the efficiency of building work.

【0005】更には、低空頭空間ではその高さ制限のた
め、その制限に最大揚程が設定された起重機などの専用
機器を用いるか、前記制限よりも低い最大揚程のものを
不便ながら用いるかしなければならず、これら機器の利
便性は甚だ悪い。
Further, in a low head space, due to the height restriction, a dedicated device such as a hoist having a maximum head set for the restriction must be used, or a head having a maximum head lower than the limit must be used inconveniently. And the convenience of these devices is very bad.

【0006】本発明はかかる従来の課題に鑑みて成され
たもので、前記建て込み作業を一台の機器でおこなえ
て、前記鉄筋篭の受け渡し作業を無くして建て込み作業
能率を著しく向上でき、またその最大揚程が調整可能で
利便性に富む、特に低空頭空間での地中連続壁工事に用
いられて好適な鉄筋篭運搬建て込み機を提供することを
目的とする。
The present invention has been made in view of the above-mentioned conventional problems, and can perform the above-mentioned erection work with a single device, thereby eliminating the work of transferring the reinforcing bar and significantly improving the erection work efficiency. It is another object of the present invention to provide a rebar cage transporting / building machine which can be adjusted for its maximum head and is highly convenient, and is particularly suitable for use in underground continuous wall construction in a low head space.

【0007】[0007]

【課題を解決するための手段】かかる目的を達成するた
めに請求項1に示す発明は、鉄筋篭置場の鉄筋篭を吊り
上げて、運搬し、地中連続壁用の掘削溝内に吊り下ろし
て建て込む鉄筋篭運搬建て込み機であって、自走式クロ
ーラと、該クローラに設けられ、下端が地面に近接する
とともに、上端が高さ方向に延出駆動されて必要揚程に
応じてその全高を調整可能な吊りフレームと、該吊りフ
レームに高さ方向に案内されて昇降駆動され、前記吊り
フレームの上端を最大揚程として鉄筋篭を建て込み姿勢
で吊り上げ吊り下ろす吊り点とを備えたことを特徴とす
る。
In order to achieve this object, the invention according to claim 1 is to lift and transport a reinforced basket in a reinforced basket storage area, and to suspend the reinforced basket in an excavation groove for an underground continuous wall. A self-propelled crawler, which is provided on the crawler and has a lower end close to the ground, and an upper end which is driven to extend in a height direction and has a total height according to a required lift. And a lifting point that is guided by the hanging frame in the height direction and is driven to move up and down, and a lifting point for lifting and hanging a reinforcing bar in a posture in which the upper end of the hanging frame is the maximum lift. Features.

【0008】上記発明によれば、鉄筋篭置場にて、吊り
フレームの下方に降下した吊り点に鉄筋篭を繋いだ後、
該鉄筋篭の吊り上げに必要な揚程まで、吊りフレームを
上方へ延出してその全高を調整し、その上端たる最大揚
程まで吊り点を上昇させて前記鉄筋篭を建て込み姿勢で
吊り上げ、該状態を保持して該鉄筋篭を建て込み場所で
ある掘削溝まで運搬し、吊り点を下降して該掘削溝内に
鉄筋篭を吊り下ろすことができる。つまり、当該鉄筋篭
運搬建て込み機を一台使用すれば、鉄筋篭置場での鉄筋
篭の吊り上げから、運搬、掘削溝内への吊り下ろしまで
の建て込み作業を全ておこなうことができる。
[0008] According to the above invention, after the reinforcing bar is connected to the hanging point lowered below the hanging frame at the reinforcing bar storage area,
Extend the suspension frame upward to the required lift for lifting the reinforced cage, adjust its total height, raise the lifting point to the maximum lift, which is the upper end, lift the reinforced cage in a standing posture, and change the state. The reinforced cage can be transported to the excavation groove, which is a place where the reinforced cage is held, and the hanging point can be lowered to suspend the reinforced cage in the excavated groove. That is, if one reinforced cage transporting / building machine is used, all the work from lifting the reinforced cage in the reinforced cage storage space to transporting and hanging the reinforced cage in the excavation trench can be performed.

【0009】また、前記吊りフレームの全高をその必要
揚程に応じて調整できるので、低空頭空間のように高さ
制限があっても、この制限の上限まで吊りフレームの全
高を任意にかつ自在に調整して、高さに限りのある作業
空間を最大限に有効利用することができる。このため、
この高さ制限に基づいて分割形成された鉄筋篭の吊り上
げに必要な揚程を確実に確保できて、任意の高さ制限に
対応することができる。
Further, since the total height of the hanging frame can be adjusted according to the required head, even if the height is limited as in a low head space, the total height of the hanging frame can be arbitrarily and freely adjusted to the upper limit of this limit. It can be adjusted to make the best use of the limited working space. For this reason,
Based on this height restriction, the lift required for lifting the rebar basket divided and formed can be reliably ensured, and any height restriction can be accommodated.

【0010】更には、吊りフレームの下端は地面と近接
していて、吊り点の昇降ストロークを地面近傍まで確保
することができるので、鉄筋篭を下方まで安定して吊る
ことができる。
Furthermore, since the lower end of the suspension frame is close to the ground, and the lifting stroke of the suspension point can be secured to the vicinity of the ground, the rebar basket can be stably suspended below.

【0011】[0011]

【発明の実施の形態】以下、本発明に係る実施形態を添
付図面を参照して詳細に説明する。図1〜3は、各々、
本発明に係る一実施形態で鉄筋篭を吊り上げた状態を示
す側面図、平面図、正面図であり、図2にあっては一部
を拡大して示す。図4は、同実施形態に使用される吊り
アーム昇降用油圧ジャッキの動作を示す概念図、図5
は、鉄筋篭を運搬しない走行状態を示す側面図であり、
図6は、同鉄筋篭を下降限まで下げた状態を示す側面図
である。尚、上記全図については、運転室などの既成の
クローラに付属されているものは透視して示し、図1と
図3については更にその外形を二点鎖線で示す。
Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Figures 1 to 3,
FIG. 2 is a side view, a plan view, and a front view showing a state in which a reinforced basket is lifted in one embodiment according to the present invention. FIG. 2 shows a partially enlarged view. FIG. 4 is a conceptual diagram showing the operation of the lifting arm lifting hydraulic jack used in the embodiment;
Is a side view showing a running state in which the reinforcing bar is not carried,
FIG. 6 is a side view showing a state where the rebar basket is lowered to the lower limit. In addition, in all of the above drawings, those attached to an existing crawler such as a driver's cab are shown in perspective, and in FIGS. 1 and 3, the outer shape is further shown by a two-dot chain line.

【0012】図1、2に示すように、本実施形態の鉄筋
篭運搬建て込み機11は、鉄筋篭置場の鉄筋篭3を吊り
上げて、運搬し、地中連続壁用の掘削溝1内に吊り下ろ
して建て込む装置であり、水平旋回駆動する旋回ベース
13を上部に備えた自走式クローラ15と、同旋回ベー
ス13上に着脱可能に固定されて、鉄筋篭3を吊り上げ
吊り下ろしする建て込みユニット21から構成される。
As shown in FIGS. 1 and 2, a reinforcing cage transporting / building machine 11 according to the present embodiment lifts and transports a reinforcing cage 3 in a reinforcing cage storage area, and places the reinforcing cage 3 in an excavation groove 1 for an underground continuous wall. A self-propelled crawler 15 having a swivel base 13 at the top for horizontally swinging drive, and a detachable fixedly mounted on the swivel base 13 for lifting and hanging the reinforced cage 3. And an embedding unit 21.

【0013】自走式クローラ15は、走行用油圧モータ
ーで駆動されるスプロケット17に噛み合わされた一対
の履帯19を、進行方向の左右に備えた周知の構成であ
り、該クローラ15の上面には、その略中心の鉛直な旋
回軸13aを中心に水平旋回する平面視略矩形状の旋回
ベース13が備えられ、該旋回ベース13は旋回用油圧
モーターによって、クローラ15の進行方向に対して3
60°の範囲に亘る任意の向きに指向される。この旋回
ベース13の上面の左部には運転室14が設けられ、該
室内に配された操作レバー類からなる操作盤にてクロー
ラ15は前後左右に進行自在に操縦され、また旋回ベー
ス13も所期の向きに旋回操作される。クローラ15の
内部には、油圧ポンプやバルブなどからなる油圧ユニッ
トが設けられていて、前記油圧モーターや後述する油圧
ジャッキに作動油を圧送している。
The self-propelled crawler 15 has a well-known configuration in which a pair of crawler belts 19 meshed with a sprocket 17 driven by a traveling hydraulic motor are provided on the left and right in the traveling direction. A turning base 13 having a substantially rectangular shape in a plan view, which turns horizontally around a vertical turning axis 13a substantially at the center thereof.
It is pointed in any orientation over a range of 60 °. A driver's cab 14 is provided on the left side of the upper surface of the turning base 13, and a crawler 15 is steerable forward and backward and left and right by an operation panel including operating levers arranged in the room, and the turning base 13 is also provided. The turning operation is performed in the desired direction. A hydraulic unit including a hydraulic pump, a valve, and the like is provided inside the crawler 15, and pressurizes hydraulic oil to the hydraulic motor and a hydraulic jack described later.

【0014】建て込みユニット21は、他の機能のユニ
ットと交換できるように前記旋回ベース13の上面に着
脱可能に固定されていて、固定状態では旋回ベース13
とともに旋回する。この建て込みユニット21は、前端
部が前記クローラ15から突出し、後部が、前記旋回ベ
ース13上面に固定されたフロントフレーム23と、こ
のフロントフレーム23の前端部に起伏自在に軸支され
た柱状の吊りフレーム41とを備えている。
The built-in unit 21 is detachably fixed to the upper surface of the turning base 13 so that it can be replaced with a unit having another function.
Turns with. The built-in unit 21 has a front end protruding from the crawler 15, a rear end having a front frame 23 fixed to the upper surface of the revolving base 13, and a column-shaped supporter rotatably supported on the front end of the front frame 23. And a suspension frame 41.

【0015】フロントフレーム23は、みぞ形鋼などに
より前後に長く形成されたフレーム体であり、その後部
は、前記旋回ベース13上面に立設した一対のブラケッ
ト13b間に介装されている。そして、後部とこれらブ
ラケット13bとを挿通する前後二本の水平な連結ピン
23aによって、フロントフレーム23は旋回ベース1
3に固定される。
The front frame 23 is a frame body which is formed to be long in the front and back by a grooved steel or the like, and its rear portion is interposed between a pair of brackets 13b provided upright on the upper surface of the revolving base 13. The front frame 23 is pivotally connected to the front base 23 by two front and rear horizontal connecting pins 23a that pass through the rear portion and the brackets 13b.
Fixed to 3.

【0016】このフロントフレーム23の前端部には、
左右方向に水平な枢着ピン23bが設けられていて、こ
の枢着ピン23bに、吊りフレーム41後面に設けられ
たベースフレーム43の下方端に位置する枢着部43a
が枢着されて、吊りフレーム43が、鉛直に起立および
後方に横臥可能に軸支されている。そして、このベース
フレーム43の上方端43bと、前記フロントフレーム
23の中間部23cとは、起伏用油圧ジャッキ25を介
して連結されていて、この起伏用油圧ジャッキ25の伸
縮動作によって、前記吊りフレーム41は前記枢着ピン
23bを中心に回転して、その伸長限にてほぼ鉛直に起
立し、短縮限にてフロントフレーム23上に横臥する。
尚、以下では、吊りフレーム41は起立状態になってい
る前提で説明する。
At the front end of the front frame 23,
A horizontal pivot pin 23b is provided in a horizontal direction, and the pivot pin 23b is provided at a lower end of a base frame 43 provided on the rear surface of the suspension frame 41.
Is pivotally mounted, and the suspension frame 43 is supported so as to be able to stand upright and lie on the back. The upper end 43b of the base frame 43 and the intermediate portion 23c of the front frame 23 are connected via a hydraulic jack 25 for raising and lowering, and the extension and contraction operation of the hydraulic jack 25 for raising and lowering the suspension frame Reference numeral 41 rotates about the pivot pin 23b, stands almost vertically at the extension limit thereof, and lies on the front frame 23 at the contraction limit.
Note that the following description is based on the premise that the hanging frame 41 is in the upright state.

【0017】吊りフレーム41は、前記起立状態で下端
が地面Gと近接する直方体状の外フレーム47と、これ
と略同長でその内部に形成された凹部47aに入れ子状
に格納されて嵌合し、高さ方向に引き出し自在な直方体
状の内フレーム49とを備えている。
The hanging frame 41 is fitted in a rectangular parallelepiped outer frame 47 whose lower end is close to the ground G in the upright state, and is nested in a concave portion 47a formed in the inside thereof and having substantially the same length as this. And a rectangular parallelepiped inner frame 49 that can be pulled out in the height direction.

【0018】前記外フレーム47後面と前記ベースフレ
ーム43前面との間には、左右の水平方向に相対変位可
能に案内するリニアガイド(図示なし)が設けられてい
て、同じくベースフレーム43と外フレーム47との間
に設けられた左右位置調整油圧ジャッキ45の伸縮動作
によって、ベースフレーム43に対する外フレーム47
の左右側方位置を調整できるようになっている。
A linear guide (not shown) is provided between the rear surface of the outer frame 47 and the front surface of the base frame 43 so as to be relatively displaceable in the left and right horizontal directions. The outer frame 47 with respect to the base frame 43 is extended and retracted by the left and right position adjusting hydraulic jack 45 provided between
The left and right sides can be adjusted.

【0019】また、前記内フレーム49には、その略中
央に高さ方向の孔49cが形成され、この孔49c内に
は内フレーム昇降用油圧ジャッキ51が設けられてい
る。この油圧ジャッキ51は、外フレーム47と内フレ
ーム49との間に介装されていて、そのシリンダ部51
aは外フレーム47に、ピストンロッド51bは連結ピ
ン51cを介して内フレーム49の中央部に固定されて
いる。
The inner frame 49 has a hole 49c in the height direction substantially at the center thereof, and a hydraulic jack 51 for raising and lowering the inner frame is provided in the hole 49c. The hydraulic jack 51 is interposed between the outer frame 47 and the inner frame 49, and has a cylinder 51
a is fixed to the outer frame 47, and the piston rod 51b is fixed to the center of the inner frame 49 via the connecting pin 51c.

【0020】そして、この内フレーム昇降用油圧ジャッ
キ51の伸縮動作によって、前記内フレーム49は外フ
レーム47に沿ってその上端から出没自在に昇降し、そ
の伸長限にて内フレーム49の上端は、概ね外フレーム
47の2倍の高さに設定され、短縮限にて外フレーム4
7内に格納されるようになっている。尚、この内フレー
ム49の上端位置たる最大揚程は、周囲の作業空間の制
限高さや鉄筋篭の吊り上げ高さなどに応じて、前記伸長
限と短縮限の範囲内で適宜設定される。
The inner frame 49 is vertically moved up and down from the upper end thereof along the outer frame 47 by the expansion and contraction operation of the inner frame raising / lowering hydraulic jack 51. The height of the outer frame 47 is set to approximately twice the height of the outer frame 47, and the outer frame 4
7 is stored. The maximum lift at the upper end of the inner frame 49 is appropriately set within the range of the extension limit and the shortening limit according to the limit height of the surrounding work space, the lifting height of the reinforced cage, and the like.

【0021】外フレーム47の前面中央には、高さ方向
に亘って同幅のスリットが形成されていて、このスリッ
トから前記内フレーム49の前部が前方に突出してい
る。この突出部49aの左右側面は、各々の側方に高さ
方向に亘って、横断面形状丸形に突出している。
A slit having the same width is formed in the center of the front surface of the outer frame 47 in the height direction, and the front part of the inner frame 49 protrudes forward from this slit. The left and right side surfaces of the protruding portion 49a protrude in a round shape in cross section over each side in the height direction.

【0022】これら一対の丸形部49bを左右側面に備
えた前記突出部49aの前面には、鉛直片53aとその
上端から前方に延出した水平片53bとからなる側面視
L字状の吊りアーム53が、その鉛直片53aの後面が
対向するように配されている。そして、この鉛直片53
aの後面に形成された一対の横断面丸形の溝部53c
に、各々前記一対の丸形部49bが嵌合して、該吊りア
ーム53は内フレーム49の範囲内で高さ方向に移動可
能となっている。また、この内フレーム49の前面下方
部と前記吊りアームの鉛直片53aの上方端とは吊りア
ーム昇降用油圧ジャッキ55を介して連結されていて、
この油圧ジャッキ55の伸縮動作によって、吊りアーム
53は、内フレーム49に沿って上下昇降し、その伸長
限にて吊りアーム53は上端に、短縮限にて下端に位置
する。
On the front surface of the protruding portion 49a provided with a pair of round portions 49b on the left and right sides, an L-shaped side view suspension comprising a vertical piece 53a and a horizontal piece 53b extending forward from the upper end thereof. The arm 53 is disposed such that the rear surfaces of the vertical pieces 53a face each other. And this vertical piece 53
a pair of round cross-section grooves 53c formed on the rear surface
Each of the pair of round portions 49b is fitted to each other, so that the suspension arm 53 can move in the height direction within the range of the inner frame 49. Further, the lower front portion of the inner frame 49 and the upper end of the vertical piece 53a of the suspension arm are connected via a suspension arm lifting hydraulic jack 55,
Due to the expansion and contraction operation of the hydraulic jack 55, the suspension arm 53 moves up and down along the inner frame 49, and the suspension arm 53 is located at the upper end at the extension limit and at the lower end at the contraction limit.

【0023】この吊りアーム昇降用油圧ジャッキ55
は、図4(a)に示すように、シリンダ56内周に、こ
れと略同長の中空のピストンロッド57が進退自在に嵌
合され、更にこの中空ピストンロッド57内周に、これ
と略同長のピストンロッド58が進退自在に嵌合されて
入れ子状に構成される。そして、前記シリンダ56のロ
ッド側圧力室56aおよびヘッド側圧力室56bには、
前記油圧ユニットと作動油のやりとりをする圧油口56
c、56dがそれぞれ設けられる。また、前記中空ピス
トンロッド57の内部には、シリンダ56のロッド側圧
力室56aと中空ピストンロッド57のロッド側圧力室
57aとを連通する管路57cが形成されている。
The lifting arm lifting hydraulic jack 55
As shown in FIG. 4 (a), a hollow piston rod 57 of substantially the same length as this is fitted to the inner periphery of the cylinder 56 so as to be able to advance and retreat, and is further fitted to the inner periphery of this hollow piston rod 57. A piston rod 58 of the same length is fitted so as to be able to move forward and backward so as to be nested. The rod-side pressure chamber 56a and the head-side pressure chamber 56b of the cylinder 56 include:
Pressure oil port 56 for exchanging hydraulic oil with the hydraulic unit
c and 56d are provided. Further, inside the hollow piston rod 57, a pipe line 57c is formed for communicating the rod-side pressure chamber 56a of the cylinder 56 with the rod-side pressure chamber 57a of the hollow piston rod 57.

【0024】このような構成の吊りアーム昇降用油圧ジ
ャッキ55は、以下のようにして伸縮する。図4(a)
に示す短縮状態にて、前記油圧ユニットから圧油口56
dに作動油を圧送すると、シリンダー56のヘッド側圧
力室56b内に作動油が流入するとともに、そのロッド
側圧力室56a内の作動油が圧油口56cから排出され
て中空ピストンロッド57は伸長する。また、この時、
中空ピストンロッド57の開口57dを介して、中空ピ
ストンロッド57のヘッド側圧力室57b内にも作動油
が流入するとともに、そのロッド側圧力室57a内の作
動油は、前記管路57cを通って圧油口56cから排出
されるのでピストンロッド57も伸長する。そして、伸
長限にあっては、図4(b)に示すようにピストンロッ
ド57、58が2段階で伸長した状態となる。
The lifting arm raising / lowering hydraulic jack 55 having such a structure expands and contracts as follows. FIG. 4 (a)
In the shortened state shown in FIG.
When hydraulic oil is pressure-fed to d, the hydraulic oil flows into the head-side pressure chamber 56b of the cylinder 56, and the hydraulic oil in the rod-side pressure chamber 56a is discharged from the pressure oil port 56c, and the hollow piston rod 57 extends. I do. Also, at this time,
Hydraulic oil also flows into the head side pressure chamber 57b of the hollow piston rod 57 through the opening 57d of the hollow piston rod 57, and the hydraulic oil in the rod side pressure chamber 57a passes through the pipe 57c. The piston rod 57 is also extended because it is discharged from the pressure oil port 56c. In the extension limit, the piston rods 57 and 58 are extended in two stages as shown in FIG.

【0025】この伸長状態にて圧油口56cに作動油を
圧送すると、シリンダー56のロッド側圧力室56a内
に作動油が流入するとともに、そのヘッド側圧力室56
b内の作動油が圧油口56dから排出されて中空ピスト
ンロッド57は短縮する。また、この時、前記ロッド側
圧力室56a内に流入した作動油の一部は、管路57c
を通って中空ピストンロッド57のロッド側圧力室57
aへ流入するとともに、そのヘッド側圧力室57b内の
作動油は、前記開口57dを介して圧油口56dから排
出されるのでピストンロッド58も短縮し、短縮限にあ
っては図4(a)に示すように2段のピストンロッド5
7、58がシリンダ56内に格納された状態となる。こ
のように2段階でピストンロッド57、58が伸長する
ので、その短縮状態の油圧ジャッキ55の全長に比べて
大きなストロークが得られる。
When hydraulic oil is pressure-fed to the pressure oil port 56c in the extended state, the hydraulic oil flows into the rod-side pressure chamber 56a of the cylinder 56 and the head-side pressure chamber 56a.
The hydraulic oil in b is discharged from the pressure oil port 56d, and the hollow piston rod 57 is shortened. At this time, a part of the hydraulic oil flowing into the rod side pressure chamber 56a is
Through the rod-side pressure chamber 57 of the hollow piston rod 57
a, and the hydraulic oil in the head-side pressure chamber 57b is discharged from the pressure oil port 56d through the opening 57d, so that the piston rod 58 is also shortened. ) As shown in FIG.
7, 58 are stored in the cylinder 56. Since the piston rods 57 and 58 extend in two stages as described above, a large stroke can be obtained as compared with the entire length of the hydraulic jack 55 in the shortened state.

【0026】図1〜図3に示すように、前記吊りアーム
の水平片53bは、前方に延出していて、この先端部に
は連結具61を介して、鉄筋篭3を吊り下げる吊り具6
3が鉛直面内を揺動可能にかつ水平回転可能に懸吊され
る。
As shown in FIGS. 1 to 3, the horizontal piece 53 b of the suspension arm extends forward, and a suspending tool 6 for suspending the reinforced basket 3 via a connecting tool 61 at a tip end thereof.
3 is suspended so as to be swingable and horizontally rotatable in a vertical plane.

【0027】吊り具63は、中間を前記連結具61に繋
がれた略直方体状のフレーム体63aと、その前端と後
端から鉛直下方に延出した二本の脚部63bとを備えて
いる。そして、各々の脚部63bの下端には、左右側方
に突出した爪部63cが形成されていて、これら爪部6
3cで鉄筋篭3を、その横筋を各々引っかけることで吊
り上げるようになっている。
The hanging member 63 includes a substantially rectangular frame 63a having an intermediate portion connected to the connecting member 61, and two legs 63b extending vertically downward from the front end and the rear end thereof. . At the lower end of each leg 63b, a claw 63c protruding left and right is formed.
At 3c, the reinforcing bar 3 is lifted by hooking the lateral bars.

【0028】前記連結具61の上部61aと下部61b
は、それぞれ水平な連結ピン62によって前記水平片5
3bおよび吊り具63のフレーム体に各々繋がれている
とともに前記上部61aと下部61bとは鉛直軸中心に
相対回転可能となっていて、前記吊り具63を、吊りア
ーム53に対して鉛直面内を揺動可能にかつ水平回転可
能に支持している。このため、吊り上げた状態の鉄筋篭
3の姿勢たる鉄筋篭の幅方向の向きは、前後方向のみな
らず、左右側方方向に向かせることができて、適宜状況
に応じて任意の方向に作業者が鈎手を用いて設定する。
尚、連結具と吊り具との間に荷重検出器を設けて鉄筋篭
の荷重を測定できるようにしてもよい。
An upper portion 61a and a lower portion 61b of the connecting member 61
The horizontal pieces 5 are respectively connected by horizontal connecting pins 62.
The upper part 61a and the lower part 61b are relatively rotatable about a vertical axis, and are connected to the suspension arm 63 in a vertical plane. Are supported so as to be swingable and horizontally rotatable. For this reason, the direction of the width of the reinforced cage, which is the posture of the reinforced cage 3 in the suspended state, can be directed not only in the front-rear direction but also in the left and right side directions, and work in any direction as appropriate according to the situation. Is set by the hooker.
Note that a load detector may be provided between the connecting tool and the hanging tool so that the load on the reinforcing bar can be measured.

【0029】外フレーム47の左右側面の下部には、接
地脚65aをロッド65b端に備えた接地用油圧ジャッ
キ65が設けられている。そして、そのロッド65bの
伸長状態にて接地脚65aが、外フレーム47の下端か
ら突出して接地され、吊りフレーム41に作用する鉛直
荷重を補助し、鉄筋篭3の吊り上げ吊り下げ時に生じる
吊りフレーム41の揺れを抑制するようになっている。
At the lower part of the left and right side surfaces of the outer frame 47, a grounding hydraulic jack 65 having a grounding leg 65a at the end of a rod 65b is provided. When the rod 65b is extended, the grounding leg 65a projects from the lower end of the outer frame 47 and is grounded, assists the vertical load acting on the hanging frame 41, and raises and lowers the hanging frame 41 when the reinforced basket 3 is lifted and suspended. It is designed to suppress the shaking.

【0030】このような構成の建て込みユニット21
は、前記クローラ15と同様に運転室14内の操作盤に
て操作される。
The built-in unit 21 having such a configuration
Is operated by an operation panel in the cab 14 like the crawler 15.

【0031】つぎに、この鉄筋篭運搬建て込み機11を
用いた鉄筋篭3の建て込み作業を説明する。 図5に示すように、内フレーム49を外フレーム4
7内に格納するとともに吊りフレーム41を伏せた状態
で所定の鉄筋篭置場へ移動する。そして、吊りフレーム
41を起立し吊りアーム53を下降して接地脚65aを
接地する。 吊りアーム53の吊り具63に鉄筋篭3を繋いで、
吊りアーム53を上昇しつつ、鉄筋篭3の吊り上げ高さ
若しくは作業空間の制限高さに応じて、適宜内フレーム
49を上昇して最大揚程を調整し、鉄筋篭3を建て込み
姿勢に吊り上げる。 接地脚65aを上昇後退させ、前記建て込み姿勢の
状態で掘削溝まで運搬する。
Next, a description will be given of the work of setting up the reinforced cage 3 using the reinforced cage transporting / building machine 11. As shown in FIG. 5, the inner frame 49 is
7 and move to a predetermined rebar yard with the hanging frame 41 lying down. Then, the suspension frame 41 is raised, the suspension arm 53 is lowered, and the grounding leg 65a is grounded. By connecting the reinforcing bar 3 to the hanging tool 63 of the hanging arm 53,
While the lifting arm 53 is raised, the inner frame 49 is appropriately raised according to the lifting height of the reinforced cage 3 or the limit height of the work space to adjust the maximum lift, and the reinforced cage 3 is lifted in the standing posture. The grounding leg 65a is raised and retracted, and is transported to the excavation trench in the state of the built-in posture.

【0032】 図1に示すように、掘削溝1の側方に
建て込み機11を停車し、その掘削溝1の上方に位置す
る鉄筋篭3の平面中心と該掘削溝1の平面中心とが一致
するように、建て込み機11を前後進するとともに、左
右位置調整油圧ジャッキ45にて吊りフレーム41の左
右位置を調整し、接地脚65aを接地する。
As shown in FIG. 1, the erection machine 11 is stopped on the side of the excavation groove 1, and the plane center of the rebar cage 3 located above the excavation groove 1 and the plane center of the excavation groove 1 are aligned. The erecting machine 11 is moved forward and backward so as to coincide with each other, and the left and right positions of the suspension frame 41 are adjusted by the left and right position adjustment hydraulic jacks 45, and the grounding legs 65a are grounded.

【0033】 そして、図2に示すように、先行して
該掘削溝1内に建て込まれて、仮受けバー5によって支
持された鉄筋篭3aの上端と、吊りアーム53にて懸吊
された鉄筋篭3の下端とを溶接などで繋いだ後、若干上
方に吊り上げて仮受けバー5を取り外し、連結された鉄
筋篭3、3aを建て込み機11で支持して下降する。
Then, as shown in FIG. 2, the upper end of the reinforcing bar 3 a, which was previously built in the excavation groove 1 and supported by the temporary receiving bar 5, was suspended by the suspension arm 53. After connecting the lower end of the reinforcing bar 3 by welding or the like, it is lifted slightly upward to remove the temporary receiving bar 5, and the connected reinforcing bar 3, 3a is supported by the built-in machine 11 and lowered.

【0034】 図6に示すように、内フレーム49を
下降限まで下降するとともに、吊りアーム53も下降限
まで下降して、前記掘削溝1内に鉄筋篭3を建て込み、
鉄筋篭3から吊り具63を外す。尚、この上に更に鉄筋
篭3を繋ぐ場合には、鉄筋篭3の上端が仮受けバー(図
示なし)の位置に達したら、仮受けバーを取り付けて仮
受けバーに鉄筋篭を支持させて、この鉄筋篭3から吊り
具63を外す。
As shown in FIG. 6, while lowering the inner frame 49 to the lower limit, the suspending arm 53 also lowers to the lower limit, and the reinforcing bar 3 is built in the excavation groove 1.
Remove the hanging tool 63 from the reinforcing bar 3. When the reinforcing bar 3 is further connected thereto, when the upper end of the reinforcing bar 3 reaches the position of the temporary receiving bar (not shown), the temporary receiving bar is attached and the temporary receiving bar supports the reinforcing bar. Then, the hanging tool 63 is removed from the reinforcing bar 3.

【0035】 図5に示すように、接地脚65aを後
退し、内フレーム49を格納し、吊りフレーム41を伏
せた状態にして鉄筋篭置き場へ移動し、上記作業を繰り
返す。
As shown in FIG. 5, the grounding legs 65a are retracted, the inner frame 49 is stored, and the suspended frame 41 is moved to a reinforced basket storage place with the hanging frame 41 face down, and the above operation is repeated.

【0036】尚、本実施形態の鉄筋篭運搬建て込み機1
1は、全ての駆動源を油圧機器にて構成しているので、
動作遅れが小さく俊敏に動作することができる。
Incidentally, the reinforced cage transporting / building machine 1 of the present embodiment.
1 is because all the driving sources are composed of hydraulic equipment,
The operation can be quickly performed with a small operation delay.

【0037】以上、本発明に係る一実施形態について説
明したが、本発明は、かかる実施形態に限定されるもの
ではなく、その要旨を逸脱しない範囲で以下に示すよう
な変形が可能である。 (a)本実施形態においては、駆動源として油圧機構を
使用したが、これに限るものではなく、電気モーターな
どの電動機構などを用いてもよい。 (b)本実施形態においては、吊り具を用いたが、これ
に代えて、ワイヤーを用いて鉄筋篭を吊ってもよい。
尚、この場合、ワイヤーは柔軟性に富むため鉄筋篭に繋
ぎ易い。
As described above, one embodiment according to the present invention has been described. However, the present invention is not limited to such an embodiment, and the following modifications can be made without departing from the gist of the present invention. (A) In the present embodiment, the hydraulic mechanism is used as the drive source. However, the present invention is not limited to this, and an electric mechanism such as an electric motor may be used. (B) In the present embodiment, a hanger is used, but instead of this, a reinforced basket may be hung using a wire.
In this case, since the wire is rich in flexibility, it can be easily connected to a steel cage.

【0038】[0038]

【発明の効果】以上説明したように、請求項1に示す発
明によれば、当該鉄筋篭運搬建て込み機を一台使用すれ
ば、鉄筋篭置場での鉄筋篭の吊り上げから、運搬、掘削
溝内への吊り下ろしまでの建て込み作業をおこなえるの
で、該作業に使用する機器間での鉄筋篭の受け渡し作業
を省略できて建て込み作業能率を著しく向上できる。
As described above, according to the first aspect of the present invention, if one of the reinforced cage transporting and building machines is used, from the lifting of the reinforced cage at the reinforced basket storage area, to the transport and excavation groove. Since the work of hanging up to hanging inside can be performed, the work of transferring the reinforcing bar between the devices used for the work can be omitted, and the efficiency of the work can be significantly improved.

【0039】また、低空頭空間の任意の高さ制限に対応
できるので、その高さ制限に応じた専用機器を用意しな
くて済むとともに、高さに限りのある作業空間を最大限
に利用できて、その利便性に優れ、作業性が向上する。
Further, since it is possible to cope with an arbitrary height restriction of the low head space, it is not necessary to prepare a dedicated device corresponding to the height restriction, and it is possible to make maximum use of a work space having a limited height. Therefore, the convenience is improved and the workability is improved.

【0040】更には、鉄筋篭を下方まで安定して吊り下
げられるので、掘削溝へ建て込み易く、作業性が向上し
て建て込み作業能率を向上できる。
Furthermore, since the steel cage can be stably hung to the lower side, it can be easily installed in the excavation trench, the workability is improved, and the efficiency of the installation work can be improved.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明に係る一実施形態で鉄筋篭を吊り上げた
状態を示す側面図である。
FIG. 1 is a side view showing a state in which a reinforced basket is lifted according to an embodiment of the present invention.

【図2】同平面図である。FIG. 2 is a plan view of the same.

【図3】同正面図である。FIG. 3 is a front view of the same.

【図4】第1実施形態に使用される吊りアーム昇降用油
圧ジャッキの動作を示す概念図である。
FIG. 4 is a conceptual diagram showing the operation of a lifting arm lifting hydraulic jack used in the first embodiment.

【図5】本発明の第1実施形態の、鉄筋篭を運搬しない
走行状態を示す側面図である。
FIG. 5 is a side view of the first embodiment of the present invention, showing a running state in which a reinforcing cage is not transported.

【図6】本発明の第1実施形態で鉄筋篭を下降限まで下
げた状態を示す側面図である。
FIG. 6 is a side view showing a state in which the reinforcing cage is lowered to a lower limit in the first embodiment of the present invention.

【図7】従来の建て込み機の斜視図である。FIG. 7 is a perspective view of a conventional erection machine.

【符号の説明】[Explanation of symbols]

G 地面 1 掘削みぞ 3 鉄筋篭 11 鉄筋篭運搬建て込み機 15 自走式クローラ 41 吊りフレーム 53 吊りアーム(吊り点) G Ground 1 Excavation groove 3 Reinforcing cage 11 Reinforcing cage transporting / building machine 15 Self-propelled crawler 41 Suspension frame 53 Suspension arm (hanging point)

フロントページの続き (72)発明者 宮崎 正宏 東京都港区港南2丁目15番2号 株式会社 大林組東京本社内 (72)発明者 中村 俊男 東京都港区港南2丁目15番2号 株式会社 大林組東京本社内 (72)発明者 黒田 英夫 埼玉県草加市弁天5丁目33−25 日立建機 株式会社関東支社内 Fターム(参考) 2D049 GB01 GD09 GE11 Continued on the front page (72) Inventor Masahiro Miyazaki 2-15-2 Konan, Minato-ku, Tokyo Main office of Obayashi Gumi Tokyo Co., Ltd. (72) Inventor Toshio Nakamura 2-1-2-2 Konan, Minato-ku, Tokyo Obayashi Gumi Tokyo Head Office (72) Inventor Hideo Kuroda 5-33-25 Benten, Soka-shi, Saitama Hitachi Construction Machinery Kanto Branch Office F-term (reference) 2D049 GB01 GD09 GE11

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 鉄筋篭置場の鉄筋篭を吊り上げて、運搬
し、地中連続壁用の掘削溝内に吊り下ろして建て込む鉄
筋篭運搬建て込み機であって、 自走式クローラと、 該クローラに設けられ、下端が地面に近接するととも
に、上端が高さ方向に延出駆動されて必要揚程に応じて
その全高を調整可能な吊りフレームと、 該吊りフレームに高さ方向に案内されて昇降駆動され、
前記吊りフレームの上端を最大揚程として鉄筋篭を建て
込み姿勢で吊り上げ吊り下ろす吊り点とを備えたことを
特徴とする鉄筋篭運搬建て込み機。
1. A self-propelled crawler, comprising: a self-propelled crawler, which lifts and conveys a steel cage in a steel cage storage area, and suspends and builds the steel cage in an excavation trench for an underground continuous wall. A hanging frame provided on the crawler, the lower end of which is close to the ground, the upper end of which is driven to extend in the height direction and whose total height can be adjusted according to a required lift; and the suspension frame is guided in the height direction by the hanging frame. Driven up and down,
And a hanging point for lifting and lowering the reinforcing cage in a posture in which the upper end of the hanging frame is a maximum lift.
JP2000217892A 2000-07-18 2000-07-18 Reinforced rod transport built-in machine Expired - Fee Related JP3725010B2 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007239200A (en) * 2006-03-06 2007-09-20 Tekken Constr Co Ltd Erecting construction method of reinforcing cage or steel pipe, float device used for this construction method and removal method of this device
JP2017078311A (en) * 2015-10-21 2017-04-27 株式会社大林組 Heavy load installation device
JP2021021274A (en) * 2019-07-29 2021-02-18 株式会社熊谷組 Core material building-in method and core material building-in device
CN113944170A (en) * 2021-11-02 2022-01-18 浙大城市学院 Construction equipment for deep foundation pit support structure of subway station
CN116772814A (en) * 2023-08-18 2023-09-19 贵州省公路工程集团有限公司 Steel reinforcement cage perpendicularity detection device and method with positioning and adjusting functions

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10317379A (en) * 1997-05-15 1998-12-02 Tekken Constr Co Ltd Steel pipe driver
JPH11147690A (en) * 1997-11-17 1999-06-02 Taisei Corp Low head space reinforcing bar building-in device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10317379A (en) * 1997-05-15 1998-12-02 Tekken Constr Co Ltd Steel pipe driver
JPH11147690A (en) * 1997-11-17 1999-06-02 Taisei Corp Low head space reinforcing bar building-in device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007239200A (en) * 2006-03-06 2007-09-20 Tekken Constr Co Ltd Erecting construction method of reinforcing cage or steel pipe, float device used for this construction method and removal method of this device
JP4680101B2 (en) * 2006-03-06 2011-05-11 鉄建建設株式会社 Reinforcement rod or steel pipe erection method, float device used in the method, and removal method of the device
JP2017078311A (en) * 2015-10-21 2017-04-27 株式会社大林組 Heavy load installation device
JP2021021274A (en) * 2019-07-29 2021-02-18 株式会社熊谷組 Core material building-in method and core material building-in device
JP7225049B2 (en) 2019-07-29 2023-02-20 株式会社熊谷組 Core material installation method
CN113944170A (en) * 2021-11-02 2022-01-18 浙大城市学院 Construction equipment for deep foundation pit support structure of subway station
CN116772814A (en) * 2023-08-18 2023-09-19 贵州省公路工程集团有限公司 Steel reinforcement cage perpendicularity detection device and method with positioning and adjusting functions
CN116772814B (en) * 2023-08-18 2023-10-17 贵州省公路工程集团有限公司 Steel reinforcement cage perpendicularity detection device and method with positioning and adjusting functions

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