JP4065445B2 - Cart for conveying and installing cylindrical blocks - Google Patents

Cart for conveying and installing cylindrical blocks Download PDF

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JP4065445B2
JP4065445B2 JP2004268349A JP2004268349A JP4065445B2 JP 4065445 B2 JP4065445 B2 JP 4065445B2 JP 2004268349 A JP2004268349 A JP 2004268349A JP 2004268349 A JP2004268349 A JP 2004268349A JP 4065445 B2 JP4065445 B2 JP 4065445B2
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lifting tool
wheel
box culvert
front wheel
cylindrical block
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JP2006083570A (en
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栄 渡辺
哲 水野
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株式会社ホクコン建設Me
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本発明は、下水道や共同溝、地下道等の構築に際し、ボックスカルバート等としての筒状ブロックを所定場所にまで搬送して据え付けることのできる筒状ブロックの搬送・据付用台車に関するものである。   The present invention relates to a cylindrical block transport / installation carriage capable of transporting and installing a cylindrical block as a box culvert to a predetermined place when constructing a sewer, a common ditch, an underground passage, or the like.

下水道や共同溝、地下道等の構築に際して、ボックスカルバート等としての筒状ブロックを所定場所にまで搬送して据付ける筒状ブロックの搬送・据付用台車としては、特開平6−185106号公報(特許文献1)や特開平6−330551号公報(特許文献2)、特開2002−285627号公報(特許文献3)、特開2002−293496号公報(特許文献4)等が開示するものが提案されている。   Japanese Laid-Open Patent Publication No. 6-185106 (Patent No. 6-185106) discloses a cylindrical block transport / installation carriage for transporting and installing a cylindrical block as a box culvert to a predetermined place when constructing a sewer, a common ditch, an underpass, etc. Documents 1), JP-A-6-330551 (Patent Document 2), JP-A 2002-285627 (Patent Document 3), JP-A 2002-293396 (Patent Document 4) and the like have been proposed. ing.

これらの搬送・据付用台車は何れも、前記筒状ブロックの底板部を跨いだ状態で接地し得る前方車輪と後方車輪を荷台部の前後に具えており、該荷台部で支持した筒状ブロックを該前方車輪と後方車輪によって走行搬送し得るように構成されていた。そして、特許文献1及び特許文献2に係る台車にあっては、頂板部を下方から支持してボックスカルバートを持ち上げる伸縮持上げ具を前記荷台部に具えていた。又特許文献3及び特許文献4記載の台車にあっては、前記底板部に設けられた吊下用部材(底板部に埋設されたインサートに螺合された吊下ボルト等)に着脱可能に連結される連結具が前記荷台部に設けられていた。   Each of these transport / installation carriages has a front wheel and a rear wheel that can be grounded in a state of straddling the bottom plate part of the cylindrical block before and after the cargo bed part, and the cylindrical block supported by the cargo bed part. Can be transported by the front wheel and the rear wheel. And in the trolley | bogie which concerns on patent document 1 and patent document 2, the expansion-contraction lifting tool which supports a top-plate part from the downward direction and lifts a box culvert was provided in the said bed part. Further, in the cart described in Patent Document 3 and Patent Document 4, it is detachably connected to a suspension member (such as a suspension bolt screwed into an insert embedded in the bottom plate portion) provided in the bottom plate portion. The connecting tool to be used was provided on the loading platform.

又前記前方車輪は、前後に配置された第1前方車輪と第2前方車輪とから構成され、特許文献1及び特許文献2に係る台車にあっては、該第1前方車輪と第2前方車輪が、個別の昇降具を介して上下動可能に荷台部に設けられていた。又、特許文献3及び特許文献4に係る台車にあっては、第1前方車輪と第2前方車輪がアーム部材を介して前記荷台部の前部に回動可能に連結され、該第1前方車輪と該第2前方車輪の回動を油圧シリンダの伸長・縮小によって所要に操作する構成のものであった。   Further, the front wheel is composed of a first front wheel and a second front wheel arranged in the front-rear direction. In the carts according to Patent Document 1 and Patent Document 2, the first front wheel and the second front wheel. However, it was provided in the loading platform part so that it could move up and down via an individual lifting tool. Further, in the carts according to Patent Document 3 and Patent Document 4, the first front wheel and the second front wheel are rotatably connected to the front portion of the cargo bed portion via the arm member, and the first front wheel The rotation of the wheel and the second front wheel is controlled as required by the expansion / contraction of the hydraulic cylinder.

このように従来の台車は、前後に配置された第1前方車輪と第2前方車輪とからなる前方車輪を有していたため、例えば特許文献1に係る台車aを例に取って説明すれば、図28に示すように、ボックスカルバートbを走行搬送する際は、前方車輪c、即ち第1前方車輪c1と第2前方車輪c2がボックスカルバートbの前端dから前方に突出した状態となる。この状態で前記伸縮持上げ具eを伸長させてボックスカルバートbを持ち上げ保持し、台車aを走行させる。該搬送されるボックスカルバートbが先頭のものである場合、掘削形成された施工空間fの設置面gへの据付け位置は、図29〜30に示すように、少なくとも前記第1前方車輪c1と第2前方車輪c2の前後方向長さに相当する分だけは、該施工空間fの前端hから後方に退いた位置にならざるを得ない。   Thus, since the conventional cart has the front wheels composed of the first front wheels and the second front wheels arranged at the front and rear, for example, the cart a according to Patent Document 1 will be described as an example. As shown in FIG. 28, when the box culvert b travels and transports, the front wheel c, that is, the first front wheel c1 and the second front wheel c2 are projected forward from the front end d of the box culvert b. In this state, the telescopic lifting tool e is extended to lift and hold the box culvert b, and the carriage a is run. When the transported box culvert b is the first one, the installation position of the excavated construction space f on the installation surface g is at least the first front wheel c1 and the first position as shown in FIGS. The amount corresponding to the length in the front-rear direction of the two front wheels c2 must be in a position retracted backward from the front end h of the construction space f.

それ故、最前端のボックスカルバートbを設計通りに据付けようとすれば、少なくとも前記前方車輪cの突出長さに相当する分だけは施工空間fを前方に延長せざるを得ない。そのため該施工空間が道路であるときは、掘削を延長したことによって交通障害を招く場合が生ずる。又、道路等の掘削部の事情によっては掘削を延長できない場合も生ずるが、このときは、前記のように後方に退いて据付けた分だけ現場打ち施工が必要となる場合も生ずる。   Therefore, if the foremost box culvert b is to be installed as designed, the construction space f must be extended forward by at least the amount corresponding to the protruding length of the front wheel c. For this reason, when the construction space is a road, there may be a case where a traffic obstacle is caused by extending the excavation. In some cases, the excavation cannot be extended depending on the circumstances of the excavation part such as a road, but in this case, there may be a case where it is necessary to perform on-site construction by the amount of installation that is retracted backward as described above.

特に特許文献3や特許文献4に係る台車のように、第1前方車輪と第2前方車輪を、荷台部の前部に回動可能に枢着したアーム部材の端部に軸支したときは、特許文献1や特許文献2に係る台車のように、これらの車輪を上下動させる場合に比してより長いスペースを要するため、掘削の延長長さがより大となる。かかることから前記問題点がそれだけ大きかった。   Especially when the first front wheel and the second front wheel are pivotally supported on the end of the arm member pivotably attached to the front part of the cargo bed part, as in the carts according to Patent Document 3 and Patent Document 4. Like the carts according to Patent Document 1 and Patent Document 2, a longer space is required as compared to the case where these wheels are moved up and down, so that the extended length of excavation becomes larger. As a result, the above-mentioned problems are significant.

又前記特許文献3及び特許文献4に係る台車にあっては、ボックスカルバートを荷台部で支持するに際して、前記底板部にインサート等を埋設する必要があるが、そのためにインサートを型枠に予め取り付ける特別な型枠加工が必要となる等、ボックスカルバートの製造コストの上昇を招く問題があった。加えて、吊下ボルト等の吊下用部材を荷台部の連結具に連結する作業は、目視しにくくしかも狭い場所での作業となるために、台車のオペレーター以外に数名の現場作業者を要したばかりか両者を位置合わせして連結する作業を慎重に行わなければならない等の困難が伴った。又これらの位置合わせ作業に加えて、位置合わせ後に抜け止め防止ピンを差し込む必要もある等、多くの作業を要して作業能率が悪い問題があった。更にボックスカルバートを据え付けた後においても、前記抜け止め防止ピンを引き抜いたり、前記吊下ボルトを取り外すと共に取り外した跡にモルタルを充填してこて仕上げを行わなければならない等の手間を要して施工コストの大幅な上昇を招く問題があった。   Further, in the carts according to Patent Document 3 and Patent Document 4, when the box culvert is supported by the loading platform portion, it is necessary to embed an insert or the like in the bottom plate portion. For this purpose, the insert is attached to the formwork in advance. There was a problem that the manufacturing cost of the box culvert was increased, for example, special formwork processing was required. In addition, the work of connecting suspension members such as suspension bolts to the loading platform connector is difficult to see and is performed in a narrow space. Not only was it necessary, but it was difficult to align and connect the two carefully. Further, in addition to these positioning operations, there is a problem that the work efficiency is poor because many operations are required, such as the need to insert a retaining pin after the positioning. Furthermore, even after installing the box culvert, it takes time and effort to pull out the retaining pin, remove the suspension bolt and fill the removed trace with mortar to finish it. There was a problem that caused a significant increase in cost.

特許文献3及び特許文献4に係る台車の前記問題点は、頂板部を持ち上げることによってボックスカルバートを搬送する特許文献1及び特許文献2記載の台車によるときは解決されているが、これらの台車によるボックスカルバートの持ち上げ支持は、頂板部だけが支持されて底板部側はフリーであったためにふらつきやすく、不陸のある走行面を走行搬送する間に、振動で跳ねてボックスカルバートの支持位置ずれが発生し、搬送されたボックスカルバートの据え付け時の位置決め調整に多大な手間を要する問題があった。又、このような位置決め調整をブロック相互をぶつけて行う等、無理に行おうとすれば、ボックスカルバートの損傷を招く問題もあった。
特開平6−185106号公報(第3−4頁、図1−図11) 特開平6−330551号公報(第4−6頁、図1、図5) 特開2002−285627号公報(第2頁、図2) 特開2002−293496号公報(3−4頁、図2、図6)
The problems of the carts according to Patent Literature 3 and Patent Literature 4 are solved when the carts described in Patent Literature 1 and Patent Literature 2 that transport the box culvert by lifting the top plate portion are solved. The lifting support of the box culvert is easily fluctuated because only the top plate part is supported and the bottom plate part side is free. There has been a problem that a great deal of labor is required for positioning adjustment during installation of the transported box culvert. In addition, if such a positioning adjustment is performed by striking the blocks against each other, there is a problem that the box culvert is damaged.
JP-A-6-185106 (page 3-4, FIGS. 1 to 11) JP-A-6-330551 (page 4-6, FIGS. 1 and 5) JP 2002-285627 A (second page, FIG. 2) JP 2002-293396 A (page 3-4, FIG. 2, FIG. 6)

本発明は前記従来の問題点に鑑みて開発されたものであり、掘削形成された施工空間の前端に接近させて筒状ブロックを据え付けることができると共に、筒状ブロックを安定状態で搬送し得る筒状ブロックの搬送・据付用台車の提供を課題とするものである。   The present invention has been developed in view of the above-described conventional problems, and can install the cylindrical block close to the front end of the excavated construction space and can transport the cylindrical block in a stable state. An object of the present invention is to provide a carriage for transporting and installing a cylindrical block.

より詳しくは、本発明は、施工場所が道路であるときに交通障害を極力回避しなければならない等、掘削が制約される場合においても、掘削形成された施工空間の端部に寄せた状態で筒状ブロックを据え付けることができ、現場打ち施工を不要としたりその施工量を極力少なくなし得る等の施工上の制約の少ない筒状ブロックの搬送・据付用台車の提供を課題とするものである。又本発明は、筒状ブロックの支持作業の容易化、能率化を達成できると共に筒状ブロックを搬送する際の振動によっても筒状ブロックが位置ずれするのを極力防止して筒状ブロック据え付け作業の容易化を達成でき、筒状ブロックの搬送、据え付けに伴う施工コストの低減を期し得る筒状ブロックの搬送・据付用台車の提供を課題とするものである。   More specifically, the present invention is in a state where it is close to the end of the excavated construction space even when excavation is restricted, such as when traffic is to be avoided as much as possible when the construction site is a road. The objective is to provide a carriage for installation and installation of cylindrical blocks with less construction restrictions, such as installation of cylindrical blocks, which eliminates the need for on-site installation and can reduce the amount of installation as much as possible. . In addition, the present invention makes it possible to facilitate and improve the efficiency of supporting the cylindrical block, and to prevent the cylindrical block from being displaced as much as possible due to vibration when the cylindrical block is conveyed. It is an object of the present invention to provide a cylindrical block conveyance / installation cart that can achieve the simplification of the cylindrical block and can reduce the construction cost associated with the conveyance and installation of the cylindrical block.

前記課題を解決するため本発明は以下の手段を採用する。
即ち本発明に係る筒状ブロックの搬送・据付用台車は、底板部と頂板部を具える筒状ブロックの搬送・据付用台車であって、荷台部の前部に前方車輪が設けられると共に、該荷台部の後部には、該前方車輪に対し前記筒状ブロックの長さよりも大きい間隔を隔てて後方車輪が設けられている。又、前記荷台部の下面側の略中央部に中間車輪が設けられ、該前方車輪と該中間車輪は何れも、個別の昇降具を介して上下動可能とされている。又、前記荷台部の上面側には、前記筒状ブロックの前記頂板部を下方から支持する支持部を具え且つ上下方向で伸縮し得る持上げ具が設けられると共に、前記前方車輪及び前記中間車輪は、前記昇降具の縮小によって、台車の走行面に設置された前記筒状ブロックの前記底板部の上面に乗り上がることができる如くなされており、又、前記持上げ具を前後方向及び左右方向で移動可能とする移動装置を設けると共に、該持上げ具の下面側に前記中間車輪を設け、該中間車輪が該持上げ具と共に前後、左右に移動可能とされていることを特徴とするものである。
In order to solve the above problems, the present invention employs the following means.
That is, the cylindrical block transportation / installation cart according to the present invention is a cylindrical block transportation / installation cart having a bottom plate portion and a top plate portion, and a front wheel is provided at the front portion of the loading platform portion, A rear wheel is provided at a rear portion of the cargo bed portion with a distance larger than a length of the cylindrical block with respect to the front wheel. Further, an intermediate wheel is provided in a substantially central portion on the lower surface side of the loading platform, and both the front wheel and the intermediate wheel can be moved up and down via individual lifting tools. Further, on the upper surface side of the loading platform portion, a lifting tool that includes a support portion that supports the top plate portion of the cylindrical block from below and can be expanded and contracted in the vertical direction is provided, and the front wheel and the intermediate wheel are The lifting tool is reduced so that it can ride on the upper surface of the bottom plate portion of the cylindrical block installed on the traveling surface of the carriage, and the lifting tool is moved in the front-rear direction and the left-right direction. The movable device is provided, and the intermediate wheel is provided on the lower surface side of the lifting tool, and the intermediate wheel is movable forward and backward, left and right together with the lifting tool.

この場合、更に、前記持上げ具をその垂直軸線回りに回動可能とする角度調整装置を設けるのがよい。   In this case, it is preferable to further provide an angle adjusting device that enables the lifting tool to be rotated about its vertical axis.

本発明は以下の如き優れた効果を奏する。
(1) 本発明に係る台車は、従来台車の前輪が前後2輪であったのとは異なり1輪に構成されているため、筒状ブロックを搬送する際、筒状ブロックの前端からの台車の突出量が小さい。特許文献1及び特許文献2に係る台車との関係では、前に位置する第1前方車輪の直径分と、第1前方車輪と第2前方車輪間の間隔分だけ台車の突出量を削減できる。通常40〜50cm程度のスペース削減が可能である。又、第1前方車輪と第2前方車輪を軸支するアーム部材を回動可能とした特許文献3及び特許文献4との関係では、それ以上のスペース削減が可能になる。
本発明がかかる特別の効果を発揮するのは、従来台車には存在していなかった段差対応の中間車輪を具えるためであり、該中間車輪の上下動操作と前方車輪の上下動操作によって筒状ブロックの底板部の上面への乗り上げと、走行面への下降接地ができるからである。
かかることから本発明によるときは、施工場所が道路であるときに交通障害を極力回避しなければならない等、掘削が制約される場合においても、掘削形成された施工空間の端部に寄せた状態で筒状ブロックを据え付けることができる。これにより、現場打ち施工を不要としたりその施工量を極力少なくできる等の制約の少ない施工が可能となる。
The present invention has the following excellent effects.
(1) Since the cart according to the present invention is configured as a single wheel, unlike the conventional front wheel having two front and rear wheels, the cart from the front end of the cylindrical block is transported when the cylindrical block is conveyed. The protruding amount of is small. In the relationship with the carts according to Patent Document 1 and Patent Document 2, the amount of protrusion of the cart can be reduced by the diameter of the first front wheel located in front and the interval between the first front wheel and the second front wheel. Usually, the space can be reduced by about 40 to 50 cm. Further, in relation to Patent Document 3 and Patent Document 4 in which the arm member that pivotally supports the first front wheel and the second front wheel is rotatable, further space reduction is possible.
The special effect of the present invention is to provide an intermediate wheel corresponding to a step which has not existed in the conventional cart, and the cylinder is formed by the vertical movement operation of the intermediate wheel and the vertical movement operation of the front wheel. This is because the climbing on the upper surface of the bottom plate portion of the block and the descending grounding on the running surface can be performed.
Therefore, according to the present invention, when the construction site is a road, it is necessary to avoid traffic obstacles as much as possible. The cylindrical block can be installed with. This makes it possible to perform construction with less restrictions such as eliminating the need for on-site construction and minimizing the amount of construction.

(2) 又本発明はこのように中間車輪を具えることから、持上げ具が筒状ブロックを持ち上げた状態で中間車輪が下降して前記底板部の下面に接地することにより、筒状ブロックを該持上げ具と該中間車輪とによって上下突っ張り状態で支持できることともなる。従って、台車が走行面を走行する際の振動によっても、筒状ブロックが位置ずれするのを極力防止しながら筒状ブロックを安定的に搬送できる。頂板部を下方から支持して筒状ブロックを持ち上げる特許文献1及び特許文献2に係る台車にあっては、台車が走行面を走行する際の振動によって筒状ブロックが跳ねて位置ずれし易かったのであるが、本発明はかかる問題点を解決できるのである。このようなことから本発明によるときは、筒状ブロックの据え付け作業の容易化を達成でき、筒状ブロックの搬送、据え付けに伴う施工コストの低減を期し得る。   (2) Since the present invention includes the intermediate wheel in this way, the intermediate wheel descends in a state where the lifting tool lifts the cylindrical block and contacts the lower surface of the bottom plate portion. The lifting tool and the intermediate wheel can be supported in a vertically stretched state. Therefore, the cylindrical block can be stably conveyed while preventing the cylindrical block from being displaced as much as possible even by vibrations when the carriage travels on the traveling surface. In the carts according to Patent Document 1 and Patent Document 2 that lift the cylindrical block by supporting the top plate portion from below, the cylindrical block is likely to jump and be displaced due to vibration when the cart travels on the traveling surface. However, the present invention can solve such problems. For this reason, according to the present invention, the installation work of the cylindrical block can be facilitated, and the construction cost associated with the transportation and installation of the cylindrical block can be reduced.

(3) 更に本発明に係る台車は、筒状ブロックの前端からの台車の突出量が小さいことに起因して従来台車に比して全長が短いため、該台車を施工現場に運搬するのが容易である。   (3) Further, the cart according to the present invention is shorter in overall length than the conventional cart due to the small amount of projection of the cart from the front end of the cylindrical block, so that the cart is transported to the construction site. Easy.

(4) 前記持上げ具を前後、左右に移動可能とする移動装置を具える場合は、既設の筒状ブロックに対して新たな筒状ブロックを接続状態に据え付ける際に該持上げ具の上端の支持部が筒状ブロックの頂板部の下面中央部分を支持するように位置調整できる。かかることから、該筒状ブロックを安定的に搬送でき、然も該筒状ブロックの前後及び左右の位置決めを正確に行って据え付けることができる。
この場合、角度調整装置によって、該持上げ具を垂直軸線回りで回動調整可能に構成した場合は、既設の筒状ブロックに対する新たな筒状ブロックの接続をより精度良く然も容易に行うことができる。
(4) When a moving device that enables the lifting tool to move back and forth, right and left is provided, the upper end of the lifting tool is supported when a new cylindrical block is installed in a connected state with respect to the existing cylindrical block. The position can be adjusted so that the portion supports the center portion of the lower surface of the top plate portion of the cylindrical block. For this reason, the cylindrical block can be stably conveyed, and still, the positioning of the cylindrical block in the front-rear and left-right directions can be accurately performed.
In this case, when the lifting device can be adjusted to rotate around the vertical axis by the angle adjusting device, the new cylindrical block can be connected to the existing cylindrical block more accurately and easily. it can.

図1〜3において本発明に係る筒状ブロックの搬送・据付用台車(以下台車という)1は、底板部2と頂板部3を具える筒状ブロック5、例えばボックスカルバート5aを、掘削形成された施工空間6の基礎コンクリート打設面(走行面)7上で車輪走行により所定場所に搬送し、据え付けるものである。   1-3, a cylindrical block transport / installation cart (hereinafter referred to as a cart) 1 according to the present invention is formed by excavating a cylindrical block 5 having a bottom plate portion 2 and a top plate portion 3, for example, a box culvert 5a. On the foundation concrete placing surface (traveling surface) 7 of the construction space 6, it is transported to a predetermined place by wheel traveling and installed.

これをより具体的に説明すれば、該台車1は例えば自走式のものであり、荷台部9の後部分に、油圧駆動部や操作部等を納めた操作ボックス10が設けられている。又、該荷台部9の前部左右に前方車輪11,11を設けると共に、該荷台部9の後部左右には、該前方車輪11,11に対し、前記ボックスカルバート5aの長さよりも大きい間隔を隔てて後方車輪12,12を設けてなり、又、該荷台部9の下面側の略中央部には中間車輪13を設けてなる。   More specifically, the cart 1 is, for example, a self-propelled type, and an operation box 10 in which a hydraulic drive unit, an operation unit, and the like are housed is provided at the rear part of the loading unit 9. Further, the front wheels 11 and 11 are provided on the left and right of the front part of the loading platform 9, and the rear left and right of the loading platform 9 are spaced apart from the front wheels 11 and 11 by a distance larger than the length of the box culvert 5 a. Rear wheels 12 and 12 are provided apart from each other, and an intermediate wheel 13 is provided at a substantially central portion on the lower surface side of the loading platform 9.

そして該前方車輪11と中間車輪13は、本実施例においては、何れも、上下方向で伸縮し得る、例えば油圧シリンダからなる個別の昇降具15,16を介して上下動可能に設けられており、各昇降具15,16の下端及び前記操作ボックス10に設けられた軸受部19,20,21に前記前方車輪11、後方車輪12、中間車輪13が軸支されている。かかる構成の前方車輪11及び前記中間車輪13は、図2に示すように、前記昇降具(油圧シリンダ)15,16の縮小によって、前記コンクリート打設面(走行面)7に載置されたボックスカルバート5aの前記底板部2の上面18に乗り上がることができる。   In the present embodiment, the front wheel 11 and the intermediate wheel 13 are both provided so as to be movable up and down via individual lifting tools 15 and 16 made of, for example, hydraulic cylinders that can be expanded and contracted in the vertical direction. The front wheel 11, the rear wheel 12 and the intermediate wheel 13 are pivotally supported by the lower ends of the lifting tools 15 and 16 and the bearing portions 19, 20 and 21 provided in the operation box 10. As shown in FIG. 2, the front wheel 11 and the intermediate wheel 13 having such a configuration are mounted on the concrete placing surface (running surface) 7 by reducing the lifting tools (hydraulic cylinders) 15 and 16. It can ride on the upper surface 18 of the bottom plate portion 2 of the culvert 5a.

又前記荷台部9の上面側には、前記ボックスカルバート5aの頂板部3を下方から支持する例えば矩形板状のテーブル22aとしての支持部22を具える持上げ具23が設けられている。該持上げ具23は、上下方向で伸縮し得る油圧シリンダ23aを以って構成されており、そのロッド25の上端に、テーブル22aとしての前記支持部22が固設されている。そして該持上げ具23(油圧シリンダ23a)は、前記荷台部9に設けられた移動装置26によって前後方向及び左右方向で移動できる。これらの移動は、例えば、電動機や油圧装置を用いて行う。該移動装置26は、例えば図3に示すように、台車1の前後方向に延長する左右の下レール27,27上に、左右方向に延長し且つ繋ぎ材29で連結された上レール部30,30が前後方向に移動可能に設けられると共に該上レール30,30上を左右方向に移動し得る移動板31が設けられ、該移動板31に、前記油圧シリンダ23aが載設固定されている。図3において符号32で示す十字の交差点は前記油圧シリンダ23aの中心を示す。又、前記油圧シリンダ23aは、図示しない角度調整装置によってその垂直軸線L回りの回動(正逆回転)が可能である。該角度調整装置は例えば、前記移動板31に回動可能に枢着された油圧シリンダのロッドの端部を前記持上げ具23に枢着して構成でき、該油圧シリンダの伸長・縮小動作に応じて該持上げ具23をその軸線回りに回動させることができる。又前記中間車輪13は、該移動板31の下面側に設けられており、中間車輪13の軸支部37は前記持上げ具23の垂直軸線L上に存する。   Further, on the upper surface side of the loading platform 9, there is provided a lifting tool 23 having a support portion 22 as a rectangular plate-like table 22a for supporting the top plate portion 3 of the box culvert 5a from below. The lifting tool 23 is composed of a hydraulic cylinder 23a that can expand and contract in the vertical direction, and the support portion 22 as a table 22a is fixed to the upper end of the rod 25 thereof. The lifting tool 23 (hydraulic cylinder 23 a) can be moved in the front-rear direction and the left-right direction by a moving device 26 provided in the loading platform 9. These movements are performed using, for example, an electric motor or a hydraulic device. For example, as shown in FIG. 3, the moving device 26 includes an upper rail portion 30 extending on the left and right lower rails 27, 27 extending in the front-rear direction of the carriage 1 and connected by a connecting member 29. 30 is provided so as to be movable in the front-rear direction, and a moving plate 31 capable of moving in the left-right direction is provided on the upper rails 30, 30. The hydraulic cylinder 23 a is mounted and fixed on the moving plate 31. In FIG. 3, the crossing point indicated by reference numeral 32 indicates the center of the hydraulic cylinder 23a. The hydraulic cylinder 23a can be rotated around the vertical axis L (forward / reverse rotation) by an angle adjusting device (not shown). The angle adjusting device can be constructed, for example, by pivotally attaching the end of a rod of a hydraulic cylinder pivotally attached to the moving plate 31 to the lifting tool 23, according to the extension / reduction operation of the hydraulic cylinder. Thus, the lifting tool 23 can be rotated around its axis. The intermediate wheel 13 is provided on the lower surface side of the moving plate 31, and the shaft support portion 37 of the intermediate wheel 13 is on the vertical axis L of the lifting tool 23.

かかる構成を有する台車1を用いてボックスカルバート5aを据え付ける施工工程は次のようである。   The construction process for installing the box culvert 5a using the cart 1 having such a configuration is as follows.

先ず図1に示すように、図示しないクレーンによってボックスカルバート5aを前記施工空間6の末端側で基礎コンクリート打設面(走行面)7に吊り下ろす。吊り下ろされたボックスカルバート5aの後方に待機した台車1を、図4に矢印で示すように、前記昇降具15の縮小によって前方車輪11を上げて前進させる。上げられた前方車輪11の下端34は、図4〜5に示すように該ボックスカルバート5aの底板部2の上面18よりも上に位置する。この前進は、前記中間車輪13と後方車輪12が前記走行面7を転動して行われ、該前方車輪11がボックスカルバート5aの底板部2の上面18の後端側39に達した図6の状態で台車1を停止させる。この状態で、前記昇降具15の伸長により該前方車輪11を下げ、同時に前記中間車輪13を、前記昇降具16の縮小によって底板部2の上面18よりも上げ、台車1を更に前進させる。この前進は、図7に示すように、前方車輪11及び中間車輪13が前記底板部2の上面18を転動し且つ後方車輪12が走行面7を転動して行われる。   First, as shown in FIG. 1, a box culvert 5 a is suspended from a foundation concrete placing surface (running surface) 7 on the end side of the construction space 6 by a crane (not shown). As shown by an arrow in FIG. 4, the cart 1 that is waiting behind the suspended box culvert 5 a is moved forward by raising the front wheel 11 by reducing the lifting tool 15. The lower end 34 of the raised front wheel 11 is located above the upper surface 18 of the bottom plate part 2 of the box culvert 5a as shown in FIGS. The forward movement is performed by the intermediate wheel 13 and the rear wheel 12 rolling on the traveling surface 7, and the front wheel 11 reaches the rear end 39 of the upper surface 18 of the bottom plate portion 2 of the box culvert 5a. In this state, the carriage 1 is stopped. In this state, the front wheel 11 is lowered by the extension of the lifting tool 15, and at the same time, the intermediate wheel 13 is raised above the upper surface 18 of the bottom plate part 2 by the reduction of the lifting tool 16, and the carriage 1 is further advanced. As shown in FIG. 7, this forward movement is performed by the front wheels 11 and the intermediate wheels 13 rolling on the upper surface 18 of the bottom plate portion 2 and the rear wheels 12 rolling on the running surface 7.

台車1の前進によって前方車輪11が前記底板部2の前端40を越えた位置で該台車1を停止させ、図8に示すように該前方車輪11を下げて走行面7に接地させる。   The carriage 1 is stopped at a position where the front wheel 11 exceeds the front end 40 of the bottom plate portion 2 by the advance of the carriage 1, and the front wheel 11 is lowered and brought into contact with the traveling surface 7 as shown in FIG.

この接地状態で、図8に示すように前記持上げ具23の垂直軸線Lがボックスカルバートの中心線L1と合致していない場合は、図9に示すように、前記中間車輪13を上げると共に前記移動装置26を前後、左右に移動操作することによって前記持上げ具23を所要に移動させ、垂直軸線Lと中心線L1とを略合致させて前記テーブル(支持部)22aを前記頂板部3の中央部分に位置させる。この状態で前記油圧シリンダ23a(持上げ具23)を伸長させ、ボックスカルバート5aを頂板部3で持ち上げる。又、前記角度調整装置を作動させて前記持上げ具23をその垂直軸線L回りに回動させ、支持されたボックスカルバート5aの中心線L1を台車1の前後方向に合わせる。その後図10に示すように、前記中間車輪13を下げて前記底板部2の上面18に接地させる。これにより、ボックスカルバート5aの下端面41が走行面7から稍浮き上がり、且つボックスカルバート5aの上下が支持部22と中間車輪13で突っ張り状態に安定支持される。なお、前記持上げ具23の垂直軸線Lがボックスカルバートの中心線L1と略合致し、且つボックスカルバート5aの軸線が台車1の前後方向に略合致しているときは、前記移動装置26や前記角度調整装置を操作することを要さず、直ちに、前記油圧シリンダ23a(持上げ具23)を伸長させてボックスカルバート5aを頂板部3で持ち上げると共に前記中間車輪13を下げて前記底板部2の上面18に接地させる工程に移行すればよい。   When the vertical axis L of the lifting tool 23 does not coincide with the center line L1 of the box culvert as shown in FIG. 8, the intermediate wheel 13 is raised and moved as shown in FIG. By moving the device 26 back and forth, left and right, the lifting tool 23 is moved as required so that the vertical axis L and the center line L1 substantially coincide with each other so that the table (supporting portion) 22a is positioned at the center portion of the top plate portion 3. To be located. In this state, the hydraulic cylinder 23 a (lifting tool 23) is extended, and the box culvert 5 a is lifted by the top plate portion 3. Further, the angle adjusting device is operated to rotate the lifting tool 23 about its vertical axis L, so that the center line L1 of the supported box culvert 5a is aligned with the longitudinal direction of the carriage 1. Thereafter, as shown in FIG. 10, the intermediate wheel 13 is lowered and brought into contact with the upper surface 18 of the bottom plate portion 2. As a result, the lower end surface 41 of the box culvert 5a is lifted from the running surface 7, and the upper and lower sides of the box culvert 5a are stably supported by the support portion 22 and the intermediate wheel 13 in a stretched state. When the vertical axis L of the lifting tool 23 substantially coincides with the center line L1 of the box culvert and the axis of the box culvert 5a substantially coincides with the longitudinal direction of the carriage 1, the moving device 26 and the angle Immediately without operating the adjusting device, the hydraulic cylinder 23a (lifting tool 23) is extended to lift the box culvert 5a by the top plate portion 3, and the intermediate wheel 13 is lowered to lower the upper surface 18 of the bottom plate portion 2. What is necessary is just to transfer to the process of grounding.

このようにボックスカルバート5aを持ち上げ支持した状態で台車1を前進させ、図11に示すように、該ボックスカルバート5aを施工空間6の前端38に近接した据付場所にまで搬送する。この搬送は、ボックスカルバート5aの上下が突っ張り状態で安定支持された状態で行われることから、台車1の走行時における振動によっても、支持されたボックスカルバート5aの位置がずれる等の問題を生じさせにくい。このようにして搬送した後、図12に示すように、前記持上げ具23がボックスカルバート5aを支持した状態で前記中間車輪13を上げる。そして、前記移動装置26を前後、左右に移動操作すると共に、前記角度調整装置を操作して前記持上げ具23をその垂直軸線L回りに所要に回動させ、該ボックスカルバート5aの位置と向きを微調整して後、図13に示すように、前記油圧シリンダ23a(持上げ具23)を縮小させてボックスカルバート5aをコンクリート打設面(設置面)7に据え付ける。   In this way, the cart 1 is moved forward with the box culvert 5a being lifted and supported, and the box culvert 5a is conveyed to an installation location close to the front end 38 of the construction space 6 as shown in FIG. Since this conveyance is performed in a state where the upper and lower sides of the box culvert 5a are stably supported in a stretched state, problems such as displacement of the position of the supported box culvert 5a due to vibration during traveling of the carriage 1 are caused. Hateful. After transporting in this manner, as shown in FIG. 12, the intermediate wheel 13 is lifted with the lifting tool 23 supporting the box culvert 5a. Then, the moving device 26 is moved back and forth, left and right, and the angle adjusting device is operated to rotate the lifting tool 23 about its vertical axis L so that the position and orientation of the box culvert 5a can be adjusted. After the fine adjustment, as shown in FIG. 13, the hydraulic cylinder 23 a (lifting tool 23) is reduced and the box culvert 5 a is installed on the concrete placing surface (installation surface) 7.

その後図14に示すように、前記中間車輪13を下げて底板部2の上面18に載せ且つ前記前方車輪11を上げて台車1を後退させ、図15に示すように、中間車輪13が該底板部2の後端42を越えた時に該中間車輪13を下げて走行面7に接地させる。そして図16に示すように、該前方車輪11が前記底板部2の後端42を越えた位置で、前方車輪11を下げて走行面7に接地させ、台車1の後退を続ける。   Then, as shown in FIG. 14, the intermediate wheel 13 is lowered and placed on the upper surface 18 of the bottom plate portion 2 and the front wheel 11 is raised to move the carriage 1 backward. As shown in FIG. When the rear end 42 of the section 2 is exceeded, the intermediate wheel 13 is lowered and brought into contact with the traveling surface 7. Then, as shown in FIG. 16, at the position where the front wheel 11 exceeds the rear end 42 of the bottom plate portion 2, the front wheel 11 is lowered and brought into contact with the traveling surface 7, and the carriage 1 continues to move backward.

本発明に係る台車1によるときは、ボックスカルバート5aの前端40から突出する前方車輪11は、第1前方車輪と第2前方車輪の2輪からなる前記従来の台車とは異なり1輪であるため、従来に比して、前方車輪11の突出長さを40〜50cm程度削減できる。かかることから、図16に示すように、先頭のボックスカルバート5a1を施工空間6の前端38に近接した状態で据え付けることができるのである。   When using the cart 1 according to the present invention, the front wheel 11 protruding from the front end 40 of the box culvert 5a is a single wheel unlike the conventional cart consisting of the first front wheel and the second front wheel. Compared to the conventional case, the protruding length of the front wheel 11 can be reduced by about 40 to 50 cm. Therefore, as shown in FIG. 16, the leading box culvert 5 a 1 can be installed in the state of being close to the front end 38 of the construction space 6.

このようにして先頭のボックスカルバート5a1を据え付けて後、2番目のボックスカルバート5a2を既設の先頭ボックスカルバート5a1に接続状態に据え付けるのであるが、その施工工程は次の通りである。   After the top box culvert 5a1 is installed in this way, the second box culvert 5a2 is installed in a connected state to the existing top box culvert 5a1, and the construction process is as follows.

即ち図3〜10に示すと同様の工程を経て、図17に示すように、ボックスカルバート5a2を既設の先頭ボックスカルバート5a1に近接した位置にまで搬送し、その後図18に示すように、前記油圧シリンダ23a(持上げ具23)を縮小して該ボックスカルバート5aを前記設置面7に仮り置きする。その後図19に示すように、前記中間車輪13を下げてこれを底板部2の上面18に接地させると同時に前記前方車輪11を上げて、既設の先頭ボックスカルバート5a1の底板部2の上面18に乗り上げ可能の状態とし、この状態で台車1を前進させる。この前進は、中間車輪13が底板部2の上面18を転動し且つ後方車輪12が走行面7を転動して行われる。その後図20に示すように、前方車輪11が前記底板部2の上面18の後端側39に達した状態で台車1を停止させ、この状態で前方車輪11を下げて該上面18に接地させる。なお、前方車輪11が前記後端側39に達した状態にあっても、後方車輪12はボックスカルバート5a2の後端44に当たらない。   That is, through the same steps as shown in FIGS. 3 to 10, the box culvert 5a2 is transported to a position close to the existing top box culvert 5a1 as shown in FIG. 17, and then, as shown in FIG. The cylinder 23 a (lifting tool 23) is reduced and the box culvert 5 a is temporarily placed on the installation surface 7. Thereafter, as shown in FIG. 19, the intermediate wheel 13 is lowered and brought into contact with the upper surface 18 of the bottom plate portion 2, and at the same time, the front wheel 11 is raised to the upper surface 18 of the bottom plate portion 2 of the existing top box culvert 5a1. A state where the vehicle can be ridden is set, and the carriage 1 is advanced in this state. This forward movement is performed by the intermediate wheel 13 rolling on the upper surface 18 of the bottom plate portion 2 and the rear wheel 12 rolling on the traveling surface 7. Thereafter, as shown in FIG. 20, the carriage 1 is stopped in a state where the front wheel 11 has reached the rear end side 39 of the upper surface 18 of the bottom plate portion 2, and in this state, the front wheel 11 is lowered and brought into contact with the upper surface 18. . Even if the front wheel 11 reaches the rear end side 39, the rear wheel 12 does not hit the rear end 44 of the box culvert 5a2.

然る後、前記中間車輪13を上げると共に前記移動装置26を前後、左右に移動操作することによって前記持上げ具23を移動させ、テーブル22a(支持部22)を前記頂板部3の中央部分に位置させる。この状態で、図21に示すように、前記油圧シリンダ23a(持上げ具23)を伸長させ、ボックスカルバート5a2を頂板部3で持ち上げると共に前記中間車輪13を下げて前記底板部2の上面18に接地させる。これにより、ボックスカルバート5a2の下端面41が走行面7から稍浮き上がり、且つ、ボックスカルバート5a2の上下が支持部22と中間車輪13で突っ張り状態に安定支持される。   Thereafter, the lifting device 23 is moved by raising the intermediate wheel 13 and moving the moving device 26 back and forth, left and right, and the table 22a (supporting portion 22) is positioned at the central portion of the top plate portion 3. Let In this state, as shown in FIG. 21, the hydraulic cylinder 23 a (lifting tool 23) is extended, the box culvert 5 a 2 is lifted by the top plate portion 3, and the intermediate wheel 13 is lowered to contact the upper surface 18 of the bottom plate portion 2. Let As a result, the lower end surface 41 of the box culvert 5a2 is lifted from the running surface 7, and the upper and lower sides of the box culvert 5a2 are stably supported in a stretched state by the support portion 22 and the intermediate wheel 13.

この状態で台車1を前進させ、図22に示すように、該ボックスカルバート5a2の前端45を既設のボックスカルバート5a1の後端46に当接状態とする。その後図23に示すように、前記持上げ具23がボックスカルバート5a2を支持した状態で前記中間車輪13を上げる。前記移動装置26を左右に移動操作すると共に、前記角度調整装置を操作して前記持上げ具23をその垂直軸線L回りに所要に回動させ、併せて移動装置26を適宜前後に移動させ、該ボックスカルバート5a2の位置と向きを微調整して後、図24に示すように、前記油圧シリンダ23a(持上げ具23)を縮小させて該ボックスカルバート5a2をコンクリート打設面(設置面)7に下ろし、ボックスカルバート5a2を既設のボックスカルバート5a1に接合させる。その後、台車1を後退させ、中間車輪13が底板部2の後端42を越えた時に、図25に示すように該中間車輪13を下げて走行面7に接地させる。そして、前方車輪11が前記後端44を越えた位置で、図26に示すように前方車輪11を下げて走行面7に接地させ、台車1をそのまま後退させ、当初の待機位置に戻す。   In this state, the carriage 1 is advanced, and the front end 45 of the box culvert 5a2 is brought into contact with the rear end 46 of the existing box culvert 5a1 as shown in FIG. Thereafter, as shown in FIG. 23, the intermediate wheel 13 is lifted with the lifting tool 23 supporting the box culvert 5a2. The moving device 26 is moved to the left and right, the angle adjusting device is operated to rotate the lifting tool 23 about its vertical axis L, and the moving device 26 is appropriately moved back and forth. After finely adjusting the position and orientation of the box culvert 5a2, as shown in FIG. 24, the hydraulic cylinder 23a (lifting tool 23) is reduced and the box culvert 5a2 is lowered to the concrete placing surface (installation surface) 7. The box culvert 5a2 is joined to the existing box culvert 5a1. Thereafter, the carriage 1 is moved backward, and when the intermediate wheel 13 exceeds the rear end 42 of the bottom plate portion 2, the intermediate wheel 13 is lowered and brought into contact with the traveling surface 7 as shown in FIG. 25. Then, at the position where the front wheel 11 exceeds the rear end 44, as shown in FIG. 26, the front wheel 11 is lowered and brought into contact with the traveling surface 7, and the carriage 1 is moved backward as it is to return to the initial standby position.

上記の作業工程を繰り返して、図27に示すように、ボックスカルバート5aを順次搬送据え付け、暗渠や共同溝等を構築する。   The above operation steps are repeated, and as shown in FIG. 27, the box culverts 5a are sequentially transported and installed to construct a culvert or a common groove.

本発明は、前記実施例で示したものに限定されるものでは決してなく、「特許請求の範囲」の記載内で種々の設計変更が可能であることはいうまでもない。その一例を挙げれば次のようである。   The present invention is by no means limited to those shown in the above-described embodiments, and it goes without saying that various design changes can be made within the scope of the claims. One example is as follows.

(1) 筒状ブロック5を持ち上げる持上げ具23は、頂板部3を下方から支持するテーブルを具え且つ上下方向で伸縮し得るテーブルリフタとして構成されることの他、上下方向で伸縮して筒状ブロック5を持ち上げることのできる各種構成のものを採用できる。   (1) The lifting tool 23 for lifting the cylindrical block 5 includes a table that supports the top plate portion 3 from below and is configured as a table lifter that can be expanded and contracted in the vertical direction. The thing of the various structures which can lift the block 5 is employable.

(2) 荷台部9の下面側の略中央部に設けられる中間車輪13は、図3に示すような1輪であることの他、左右2個の車輪からなるもの等、複数輪からなるものであってもよい。   (2) The intermediate wheel 13 provided at the substantially central portion on the lower surface side of the loading platform 9 is not only one wheel as shown in FIG. 3, but also a plurality of wheels such as one consisting of two left and right wheels. It may be.

(3) 前記実施例においては、持上げ具23を、移動装置26を介して前後、左右に移動可能に構成しているが、持上げ具23が筒状ブロック5の頂板部3を下方から安定的に支持できる限り、該持上げ具23が荷台部9に固定的に設けられることもある。
又、移動装置26を介して持上げ具23を前後、左右に移動可能に構成する場合も、前記のように、中間車輪13を持上げ具23の下部に組み込んで該持上げ具23の移動に伴い中間車輪13も同時に移動するように構成することは、必ずしも必要ではない。
(3) In the above embodiment, the lifting tool 23 is configured to be movable back and forth and left and right via the moving device 26. The lifting tool 23 may be fixedly provided on the loading platform 9 as long as it can be supported by.
Further, when the lifting tool 23 is configured to be movable back and forth and right and left via the moving device 26, the intermediate wheel 13 is incorporated in the lower portion of the lifting tool 23 as described above, and the lifting tool 23 moves in the middle. It is not always necessary to configure the wheels 13 to move simultaneously.

(4) 前記実施例においては、筒状ブロック5の据え付け向きをより精度よく設定できるように角度調整装置が設けられているが、かかる角度調整装置は設けられないこともある。   (4) In the above embodiment, the angle adjusting device is provided so that the installation direction of the cylindrical block 5 can be set with higher accuracy, but such an angle adjusting device may not be provided.

(5) 筒状ブロック5を持上げ具23と中間車輪13とによる上下突っ張り支持によって安定的に支持できる限り、持上げ具23の垂直軸線L上に前記中間車輪13の軸支部37が存在することは必ずしも必要ではない。   (5) As long as the cylindrical block 5 can be stably supported by the vertical support by the lifting tool 23 and the intermediate wheel 13, the shaft support portion 37 of the intermediate wheel 13 is present on the vertical axis L of the lifting tool 23. It is not always necessary.

(6) 前方車輪11を上下動させる昇降具15は、前記荷台部9の前部に枢着され且つ油圧シリンダ等の伸縮具によって上下回動可能とされたアーム部材を以って構成することもあり、この場合、該アーム部材の先端部に前方車輪が枢着される。   (6) The lifting / lowering tool 15 that moves the front wheel 11 up and down is configured with an arm member that is pivotally attached to the front part of the loading platform 9 and can be turned up and down by a telescopic tool such as a hydraulic cylinder. In this case, the front wheel is pivotally attached to the tip of the arm member.

本発明に係る台車を、搬送されるボックスカルバートと共に示す一部断面側面図である。It is a partial cross section side view which shows the trolley | bogie which concerns on this invention with the box culvert conveyed. 台車の前方車輪がボックスカルバートの底板部の上面に乗り上がった状態を示す一部断面側面図である。It is a partial cross section side view which shows the state which the front wheel of the trolley got on the upper surface of the baseplate part of a box culvert. 持上げ具を省略して示す台車の平面図である。It is a top view of the trolley | bogie which abbreviate | omits and shows a lifting tool. 前方車輪を底板部の上面に乗り上げる直前状態を示す一部断面側面図である。It is a partial cross section side view which shows the state just before riding a front wheel on the upper surface of a baseplate part. その正面図である。It is the front view. 前方車輪が底板部の上面に乗り上げられた状態を示す一部断面側面図である。It is a partial cross section side view which shows the state in which the front wheel got on the upper surface of the baseplate part. 前方車輪と中間車輪が底板部の上面を転動し且つ後方車輪が走行面を転動する状態を示す一部断面側面図である。It is a partial cross section side view which shows the state in which a front wheel and an intermediate | middle wheel roll on the upper surface of a baseplate part, and a rear wheel rolls a driving | running | working surface. 前方車輪と後方車輪が前記底板部を跨いだ状態を示す一部断面側面図である。It is a partial cross section side view which shows the state in which the front wheel and the back wheel straddled the said baseplate part. この状態において持上げ具を移動させ、持上げ具の垂直軸線とボックスカルバートの中心線とを合致させた状態を示す一部断面側面図である。It is a partial cross section side view which shows the state which moved the lifting tool in this state, and matched the vertical axis line of the lifting tool and the centerline of the box culvert. 持上げ具でボックスカルバートを持上げると共に中間車輪を前記底板部の上面に接地させた状態を示す一部断面側面図である。It is a partial cross section side view which shows the state which lifted the box culvert with the lifting tool, and grounded the intermediate | middle wheel to the upper surface of the said baseplate part. ボックスカルバートを施工空間の前端に近接した据付場所に搬送した状態を示す一部断面側面図である。It is a partial cross section side view which shows the state which conveyed the box culvert to the installation place close | similar to the front end of construction space. 搬送されたボックスカルバートの設置位置と向きを微調整する工程を示す一部断面側面図である。It is a partial cross section side view which shows the process of finely adjusting the installation position and direction of the conveyed box culvert. 搬送されたボックスカルバートを設置面に据え付けた状態を示す一部断面側面図である。It is a partial cross section side view which shows the state which installed the conveyed box culvert on the installation surface. ボックスカルバートを据え付けた後に台車を後退させるために、前方車輪を上げた状態を示す一部断面側面図である。It is a partial cross section side view which shows the state which raised the front wheel in order to retract a trolley | bogie after installing a box culvert. 前方車輪を前記底板部の上面に接地させると共に中間車輪を走行面に接地させた台車の後退状態を示す一部断面側面図である。It is a partial cross section side view which shows the retreat | retreat state of the trolley | bogie which grounded the front wheel on the upper surface of the said baseplate part, and grounded the intermediate | middle wheel on the running surface. 台車がボックスカルバートから外れた後退状態を示す一部断面側面図である。It is a partial cross section side view which shows the retreat state which the trolley | bogie removed from the box culvert. 次に接続されるボックスカルバートを既設のボックスカルバートに近接した位置にまで搬送した状態を示す一部断面側面図である。It is a partial cross section side view which shows the state which conveyed the box culvert connected next to the position close to the existing box culvert. そのボックスカルバートを仮り置きした状態を示す一部断面側面図である。It is a partial cross section side view which shows the state which set the box culvert temporarily. 仮り置きしたボックスカルバートを既設のボックスカルバートに接合するために、前方車輪を上げた状態を示す一部断面側面図である。It is a partial cross section side view which shows the state which raised the front wheel, in order to join the temporarily placed box culvert to the existing box culvert. 前方車輪を既設のボックスカルバートの底面部の上面に乗り上げた状態を示す一部断面側面図である。It is a partial cross section side view which shows the state which got the front wheel on the upper surface of the bottom face part of the existing box culvert. 既設のボックスカルバートを持ち上げた状態を示す一部断面側面図である。It is a partial cross section side view which shows the state which lifted the existing box culvert. 台車を前進させてボックスカルバートの前端を既設のボックスカルバートの後端に当接させた状態を示す一部断面側面図である。It is a partial cross section side view which shows the state which advanced the trolley | bogie, and contact | abutted the front end of the box culvert with the rear end of the existing box culvert. 該ボックスカルバートの設置位置と向きを微調整した状態を示す一部断面側面図である。It is a partial cross section side view which shows the state which finely adjusted the installation position and direction of this box culvert. ボックスカルバートを既設のボックスカルバートに接合させた状態を示す一部断面側面図である。It is a partial cross section side view which shows the state which joined the box culvert to the existing box culvert. 接合した後における台車の後退工程を示す一部断面側面図である。It is a partial cross section side view which shows the retreat process of the trolley | bogie after joining. 台車を後退させて当初の待機位置に戻す工程を示す一部断面側面図である。It is a partial cross section side view which shows the process of retracting a trolley | bogie and returning to an original standby position. ボックスカルバート相互を接合して構築された暗渠を示す部分側面図である。It is a partial side view showing a culvert constructed by joining box culverts together. 従来の台車をボックスカルバートの搬送状態で示す一部断面側面図である。It is a partial cross section side view which shows the conventional trolley | bogie in the conveyance state of a box culvert. ボックスカルバートを施工空間の端部に近接した据付場所にまで搬送した状態を示す一部断面側面図である。It is a partial cross section side view which shows the state which conveyed the box culvert to the installation place close | similar to the edge part of construction space. 搬送したボックスカルバートを据え付けた状態を示す一部断面側面図である。It is a partial cross section side view which shows the state which installed the conveyed box culvert.

符号の説明Explanation of symbols

1 台車
2 底板部
3 頂板部
5 筒状ブロック
5a ボックスカルバート
6 施工空間
7 コンクリート打設面
9 荷台部
11 前方車輪
12 後方車輪
13 中間車輪
15 昇降具
16 昇降具
18 底板部の上面
22 支持部
23 持上げ具
26 移動装置
DESCRIPTION OF SYMBOLS 1 Carriage 2 Bottom plate part 3 Top plate part 5 Cylindrical block 5a Box culvert 6 Construction space 7 Concrete placement surface 9 Loading platform part 11 Front wheel 12 Rear wheel 13 Intermediate wheel 15 Lifting tool 16 Lifting tool 18 Upper surface 22 of bottom plate part 22 Support part 23 Lifting tool 26 Moving device

Claims (2)

底板部と頂板部を具える筒状ブロックの搬送・据付用台車であって、荷台部の前部に前方車輪が設けられると共に、該荷台部の後部には、該前方車輪に対し前記筒状ブロックの長さよりも大きい間隔を隔てて後方車輪が設けられ、又、前記荷台部の下面側の略中央部に中間車輪が設けられ、該前方車輪と該中間車輪は何れも、個別の昇降具を介して上下動可能とされており、又、前記荷台部の上面側には、前記筒状ブロックの前記頂板部を下方から支持する支持部を具え且つ上下方向で伸縮し得る持上げ具が設けられると共に、前記前方車輪及び前記中間車輪は、前記昇降具の縮小によって前記筒状ブロックの前記底板部の上面に乗り上がることができる如くなされており、又、前記持上げ具を前後方向及び左右方向で移動可能とする移動装置が設けられると共に、該持上げ具の下面側に前記中間車輪が設けられ、該中間車輪が該持上げ具と共に前後、左右に移動可能とされていることを特徴とする筒状ブロックの搬送・据付用台車。   A carriage for transporting and installing a cylindrical block having a bottom plate portion and a top plate portion, and a front wheel is provided at the front portion of the loading platform portion, and the cylindrical shape is provided at the rear portion of the loading platform portion with respect to the front wheel. Rear wheels are provided at intervals greater than the length of the block, and an intermediate wheel is provided at a substantially central portion on the lower surface side of the loading platform, and each of the front wheel and the intermediate wheel is a separate lifting device. A lifting tool is provided on the upper surface side of the loading platform, which includes a support portion that supports the top plate portion of the cylindrical block from below and can be expanded and contracted in the vertical direction. The front wheel and the intermediate wheel are adapted to be able to ride on the upper surface of the bottom plate portion of the cylindrical block by reducing the lifting tool, and the lifting tool is moved in the front-rear direction and the left-right direction. Mobile equipment that can be moved with The intermediate wheel is provided on the lower surface side of the lifting tool, and the intermediate wheel can be moved back and forth, left and right together with the lifting tool. Trolley. 底板部と頂板部を具える筒状ブロックの搬送・据付用台車であって、荷台部の前部に前方車輪が設けられると共に、該荷台部の後部には、該前方車輪に対し前記筒状ブロックの長さよりも大きい間隔を隔てて後方車輪が設けられ、又、前記荷台部の下面側の略中央部に中間車輪が設けられ、該前方車輪と該中間車輪は何れも、個別の昇降具を介して上下動可能とされており、又、前記荷台部の上面側には、前記筒状ブロックの前記頂板部を下方から支持する支持部を具え且つ上下方向で伸縮し得る持上げ具が設けられると共に、前記前方車輪及び前記中間車輪は、前記昇降具の縮小によって前記筒状ブロックの前記底板部の上面に乗り上がることができる如くなされており、又、前記持上げ具を前後方向及び左右方向で移動可能とする移動装置が設けられると共に、該持上げ具の下面側に前記中間車輪が設けられ、該中間車輪が該持上げ具と共に前後、左右に移動可能とされており、又、前記持上げ具をその垂直軸線回りに回動可能とする角度調整装置が設けられていることを特徴とする筒状ブロックの搬送・据付用台車。   A carriage for transporting and installing a cylindrical block having a bottom plate portion and a top plate portion, and a front wheel is provided at the front portion of the loading platform portion, and the cylindrical shape is provided at the rear portion of the loading platform portion with respect to the front wheel. Rear wheels are provided at intervals greater than the length of the block, and an intermediate wheel is provided at a substantially central portion on the lower surface side of the loading platform, and each of the front wheel and the intermediate wheel is a separate lifting device. A lifting tool is provided on the upper surface side of the loading platform, which includes a support portion that supports the top plate portion of the cylindrical block from below and can be expanded and contracted in the vertical direction. The front wheel and the intermediate wheel are adapted to be able to ride on the upper surface of the bottom plate portion of the cylindrical block by reducing the lifting tool, and the lifting tool is moved in the front-rear direction and the left-right direction. Mobile equipment that can be moved with The intermediate wheel is provided on the lower surface side of the lifting tool, and the intermediate wheel can be moved back and forth, left and right together with the lifting tool, and the lifting tool is rotated about its vertical axis. A carriage for transporting and installing a cylindrical block, characterized in that it is provided with an angle adjustment device that enables movement.
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