JP2019014599A - Carriage mounting jig for forklift and member carriage mounting method using the same - Google Patents
Carriage mounting jig for forklift and member carriage mounting method using the same Download PDFInfo
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Abstract
Description
本発明は、フォークリフトのフォークに装着されてフォークリフトで部材を運搬するとともに、そのまま所定の位置に部材を正確に設置するための治具、及びそれを用いた部材運搬据付方法に関するものである。 The present invention relates to a jig that is mounted on a fork of a forklift and transports the member with the forklift and accurately installs the member at a predetermined position as it is, and a member transporting and installation method using the jig.
従来、シールドトンネル内の閉鎖された空間において、ＰＣａ床版（プレキャスト床版）やセグメントなどの各種資材を運搬する際は、レールを敷設した上、そのレール上を走行する門型クレーンや門型架設機を用いて運搬していた。 Conventionally, when transporting various materials such as PCa floor slabs (precast floor slabs) and segments in a closed space in a shield tunnel, a rail crane is laid and a portal crane or gate that runs on the rail. It was transported using a construction machine.
ＰＣａ床版をシールドトンネル内に設置する場合は、先ず、従来の工法では、シールドトンネルの坑口からＰＣａ床版を設置している場所近傍まで、複数枚のＰＣａ床版をトレーラーや台車などの運搬車両で運搬する。そして、当該設置場所近傍に複数枚のＰＣａ床版をクレーン等の揚重機を用いて荷降ろしして複数枚積み上げ、その後、門型クレーンや門型架設機を用いて、積み上げストックしたＰＣａ床版のヤマから設置場所までＰＣａ床版を１枚ずつ移送して、据え付け（敷設し）ていた。このため、ＰＣａ床版の盛り替え（揚重や運搬する機械装置を変えること）作業等に労力や時間を要していた。 When installing a PCa floor slab in a shield tunnel, first, according to the conventional method, transport multiple PCa floor slabs such as trailers and carts from the tunnel tunnel entrance to the vicinity of the place where the PCa floor slab is installed. Transport by vehicle. Then, a plurality of PCa floor slabs are unloaded using a crane or other heavy lifting machine and stacked in the vicinity of the installation location, and then stacked and stocked using a portal crane or a portal erection machine. The PCa floor slabs were transferred one by one from the Yamano to the installation location and installed (laid). For this reason, labor and time are required for the work of changing the PCa floor slab (lifting or changing the mechanical device to be transported).
例えば、特許文献１には、シールドトンネル内の円形空間の下半部に平坦面を設けるべくＰＣａ床版を敷設する際に、門型クレーン１３を用いてプレキャストＰＣ床版５（ＰＣａ床版）などを移動することが開示されている（特許文献１の明細書の段落［００１７］、図面の図３〜５等参照）。 For example, in Patent Document 1, when a PCa floor slab is laid to provide a flat surface in the lower half of a circular space in a shield tunnel, a precast PC floor slab 5 (PCa floor slab) is used using a portal crane 13. (See paragraph [0017] of the specification of Patent Document 1, FIGS. 3 to 5 of the drawings, etc.).
しかし、このような門型クレーンや門型架設機を用いて資材等を運搬することは、（１）架設機の組み払しのための大きなスペースが必要であり、大断面の坑道でなければ、架設機を用いることが困難であるという問題があった。また、（２）レール（軌条）上を架設機が走行するため縦横断線形が複雑に変化する箇所や、縦横断勾配のきつい箇所では用いることができないという問題もあった。 However, transporting materials, etc. using such a portal crane or portal erection machine requires (1) a large space for assembly of the erection machine. There was a problem that it was difficult to use a construction machine. In addition, (2) the construction machine travels on the rail (rail), there is a problem that it cannot be used in places where the longitudinal transverse alignment changes in a complicated manner or places where the longitudinal transverse gradient is tight.
そこで、特許文献２には、本願出願人が提案した、前輪と後輪と、前輪を旋回操作可能な旋回操舵部と、走行面との高さを調節する伸縮調節脚部と、伸縮調節脚部に連結される脚本体と、水平枠部により形成された門型枠体部と、ガイド杆と、ガイド杆に対し移動可能にして取り付けられた操作杆と、操作杆に対し移動可能にして取り付けられた床版吊り上げ用の吊り上げ装置を有する床版架設装置が開示されている（特許文献２の特許請求の範囲の請求項１、明細書の段落［００１６］〜［００３０］、図面の図１、図２等参照）。 Therefore, Patent Document 2 discloses a front wheel and a rear wheel, a turning steering part capable of turning the front wheel, a telescopic adjustment leg part for adjusting the height of the traveling surface, and a telescopic adjustment leg proposed by the present applicant. A leg-shaped body formed by a horizontal frame, a guide frame, a guide rod, an operation rod attached to be movable with respect to the guide rod, and a movable rod with respect to the operation rod. A floor slab erection device having a lifting device for lifting a floor slab attached is disclosed (claim 1 of patent document 2, paragraphs [0016] to [0030] of the specification, figure of the drawings) 1, see FIG.
特許文献２に記載の床版架設装置は、建築制限のあるトンネル内などの道路幅が狭く、平面線形での作業が厳しい狭所での床版架設作業についても、また、内部が螺旋状をなし、作業に際しては曲面走行で作業を行わなければならないトンネル内にあっても、さらには、トンネル内などにおいて縦断勾配がきつい箇所であってもスムーズに走行して床版を設置できるとされている。 The floor slab erection device described in Patent Literature 2 has a narrow road width, such as in a tunnel with construction restrictions, and the slab erection work in a narrow place where the work in the plane alignment is severe, and the inside has a spiral shape. None, even if you are in a tunnel where you must work on a curved surface when working, and even if the longitudinal gradient is tight in the tunnel etc., you can run smoothly and install the floor slab Yes.
しかし、特許文献２に記載の床版架設装置は、前述の大断面の坑道でなければ、架設機の組み払しが困難であるという問題は解決されてはおらず、小規模シールドトンネル内では、使用が困難であるという問題があった。また、このような架設装置や門型クレーン等を用いて、ＰＣａ床版（プレキャストＰＣ床版）などの正確な位置に据付する必要がある部材を据え付ける場合は、ＰＣａ床版等の部材をトンネルの坑口から架設機の位置までトレーラーもしくは台車により運搬した上、架設機に盛り替えを行ってからする必要があった。このため、盛り替え作業等に労力や時間を要し、コストアップの要因となっていた。 However, in the floor slab erection device described in Patent Document 2, the problem that it is difficult to assemble the erection machine is not solved unless it is a tunnel having a large cross section as described above. There was a problem that it was difficult to use. In addition, when installing a member that needs to be installed at an accurate position, such as a PCa floor slab (precast PC floor slab), using such an installation device or a portal crane, the member such as the PCa floor slab is tunneled. It had to be transported from the pit to the position of the erection machine by a trailer or cart, and after changing the erection machine. For this reason, labor and time are required for the reordering work and the like, which is a cause of cost increase.
その上、大型で複雑な架設装置であるため、組み払しの費用やレールや架設機などの仮設機材のリース費用が嵩むという問題もあった。さらに、動力の付いた架設機をレール（軌条）上で走行させるためには、労働基準監督署への申請が必要であり、そのための計画や書類作成の時間をさらに要し、この点もコストアップの要因となっていた。 In addition, since it is a large and complicated erection device, there are problems that the cost of assembling and the leasing cost of temporary equipment such as rails and erection machines increase. Furthermore, in order to drive a powered construction machine on rails, it is necessary to apply to the Labor Standards Inspection Office, which requires more time for planning and document preparation, which is also a cost. It was a factor of up.
一方、フォークリフトのフォークに装着して使用する治具としては、特許文献３に、建築用パネルの建て込み施工治具が開示されている。この特許文献３に記載の建築用パネルの建て込み施工治具は、フォークリフトＢのフォーク１３に装脱可能なベース部材２の先端に、断熱パネルの長手方向一端下部に移入可能で、その移入状態でのフォークリフトＢの前進及びフォーク１３の上昇により断熱パネルＰを垂直に立て起こし可能な自由回転ローラ３が取り付けられているとともに、ベース部材２の上面部には、パネル表面を吸着する吸着パッド７を備えたパネル把持部材４を吸着パッド７が作用姿勢と非作用姿勢とに切替えられるように位置変更可能に設けられている（特許文献３の特許請求の範囲の請求項１、明細書の段落［００１４］〜［００２５］、図面の図２、図５〜７等参照）。 On the other hand, as a jig to be used by being mounted on a fork of a forklift, Patent Document 3 discloses a construction panel construction jig. The construction panel erection jig described in Patent Document 3 can be transferred to the front end of the base member 2 that can be attached to and detached from the fork 13 of the forklift B, and can be transferred to the lower end in the longitudinal direction of the heat insulating panel. A free rotating roller 3 capable of vertically raising the heat insulating panel P by advancing the forklift B and raising the fork 13 is attached to the upper surface of the base member 2 and a suction pad 7 for adsorbing the panel surface. The position of the panel gripping member 4 having the above-described structure can be changed so that the suction pad 7 can be switched between the working posture and the non-working posture (Claim 1 of the Claim of Patent Document 3, paragraph of the specification) [0014] to [0025], see FIG. 2 and FIGS.
しかし、特許文献３に記載の建築用パネルの建て込み施工治具は、シールドトンネル内においてＰＣａ床版などのコンクリート製の部材の運搬・据付にそのまま使用できるものではなかった。つまり、特許文献３に記載の建築用パネルの建て込み施工治具をフォークリフトのフォークに装着して、フォーク上にコンクリート製の部材を乗せて運搬すると、振動や衝撃によりコンクリート製の部材が損傷してしまうという問題があった。また、特許文献３に記載の建築用パネルの建て込み施工治具は、ＰＣａ床版などのコンクリート製の部材の敷設（据付）にはそのまま利用できないという問題もあった。 However, the construction panel construction jig described in Patent Document 3 cannot be used as it is for transporting and installing concrete members such as PCa floor slabs in a shield tunnel. That is, if the construction panel construction jig described in Patent Document 3 is mounted on a fork of a forklift and a concrete member is placed on the fork and transported, the concrete member may be damaged by vibration or impact. There was a problem that. In addition, the construction panel construction jig described in Patent Document 3 has a problem that it cannot be used as it is for laying (installing) a concrete member such as a PCa floor slab.
そこで、本発明は、前述した問題に鑑みて案出されたものであり、その目的とするところは、ランプシールドなどの小規模且つ縦横断面における急勾配を有するトンネルにおいても使用することができるとともに、部材を損傷することなく運搬と据付の作業をつづけて正確に行うことができるフォークリフト用運搬据付治具及びそれを用いた部材運搬据付方法を提供することにある。 Therefore, the present invention has been devised in view of the above-described problems, and the object of the present invention is that it can be used in a tunnel having a steep slope in a small and vertical and horizontal cross section such as a lamp shield. Another object of the present invention is to provide a forklift transport installation jig and a member transport installation method using the same, which can be carried out accurately without damaging the members.
請求項１に記載のフォークリフト用運搬据付治具は、フォークリフトのフォークに装着され、部材の運搬と据付の際の位置調整するためのフォークリフト用運搬据付治具であって、前記部材を吊り下げ支持可能な強度を有するフレームと、このフレームを前記フォークに装着するための装着手段と、前記フレームに取り付けられて前記部材を吊り下げ支持する吊下げ手段と、前記フレーム又は前記フォークと前記部材との間に介装されて前記部材を押圧固定する押圧手段と、を備えることを特徴とする。 The forklift transport installation jig according to claim 1 is a forklift transport installation jig that is mounted on a fork of a forklift and adjusts the position of the member during transport and installation. A frame having a possible strength, a mounting means for mounting the frame on the fork, a suspension means attached to the frame to support the member in a suspended manner, and the frame or the fork and the member. And a pressing unit that is interposed therebetween and presses and fixes the member.
請求項２に記載のフォークリフト用運搬据付治具は、請求項１に記載のフォークリフト用運搬据付治具において、前記押圧手段は、揺動自在のヒンジを有していることを特徴とする。 A forklift transport installation jig according to a second aspect of the present invention is the forklift transport installation jig according to the first aspect, wherein the pressing means has a swingable hinge.
請求項３に記載のフォークリフト用運搬据付治具は、請求項１又は２に記載のフォークリフト用運搬据付治具において、前記吊下げ手段は、チェーンブロックや電動ホイスト等の吊り下げ長さ調整機構を有していることを特徴とする。 The forklift transport installation jig according to claim 3 is the forklift transport installation jig according to claim 1 or 2, wherein the suspension means includes a suspension length adjusting mechanism such as a chain block or an electric hoist. It is characterized by having.
請求項４に記載の部材運搬据付方法は、請求項１ないし３のいずれかに記載のフォークリフト用運搬据付治具を用いて、前記部材を運搬するとともに所定の位置に据え付ける部材運搬据付方法であって、運搬時には、前記吊下げ手段で前記部材を吊り上げつつ前記押圧手段で前記部材を押圧固定して運搬し、据付時には、吊下げ手段で吊り降ろして前記部材の水平及び据付位置の高さ調整を行うことを特徴とする。 The member transport installation method according to claim 4 is a member transport installation method for transporting the member and mounting the member at a predetermined position using the forklift transport installation jig according to any one of claims 1 to 3. During transport, the member is pressed and fixed by the pressing means while the member is lifted by the suspension means, and when installed, the member is suspended by the suspension means to adjust the horizontal and installation position of the member. It is characterized by performing.
請求項１〜４に記載の発明によれば、大型の門型クレーンや架設機を使用せずにフォークリフトによる部材の運搬・据付が可能となる。このため、ランプシールドなどの小規模且つ縦横断面における急勾配を有するトンネルにおいても使用することができるだけでなく、レール材等の仮設資材のリース料が嵩むことがなく安価となる。その上、フォークリフト１台で運搬と据付を続けて行うことができるため、部材の揚重手段の盛替等が必要なくなり、作業時間を短縮してコストダウンを達成することができる。 According to invention of Claims 1-4, the conveyance and installation of a member by a forklift are attained, without using a large sized portal crane and a construction machine. For this reason, it can be used not only in a small-scale tunnel having a steep slope in a vertical and horizontal cross section such as a lamp shield, but the lease fee for temporary materials such as rail materials does not increase and is inexpensive. In addition, since transportation and installation can be carried out continuously with one forklift, it is not necessary to replace the lifting means of the members, and the working time can be shortened and the cost can be reduced.
また、請求項１〜４に記載の発明によれば吊下げ手段で部材を吊り下げつつ、押圧手段で部材を押圧固定して運搬するので、部材の振動によるバタつきを抑えて部材を損傷することなく運搬することができる。その上、フォークリフトのフォークの上下動だけでなく、吊下げ手段で部材の高さ調整などの位置調整が可能であり据付作業を正確に行うことができる。それに加え、1台のフォークリフトで運搬と据付をつづけて行うことができるため、極めて作業効率が良く、その点でも作業時間を短縮してコストダウンを達成することができる。 In addition, according to the first to fourth aspects of the present invention, the member is pressed and fixed by the pressing means while being transported while the member is suspended by the suspension means, so that the member is damaged by suppressing the flutter caused by the vibration of the member. Can be transported without any problems. In addition to the vertical movement of the fork of the forklift, the position adjustment such as the height adjustment of the member can be performed by the hanging means, so that the installation work can be performed accurately. In addition, since it can be carried and installed with a single forklift, the work efficiency is very good. In this respect, the work time can be shortened and the cost can be reduced.
特に、請求項２に記載の発明によれば、押圧手段が揺動自在なヒンジを有しているので、運搬する部材がコンクリート部材などの引張力に弱い特性のある部材であっても、部材の撓み変動に追随して運搬中の振動で損傷させるおそれが少なくなる。 In particular, according to the second aspect of the present invention, since the pressing means has a swingable hinge, even if the member to be transported is a member having a characteristic weak against tensile force, such as a concrete member, the member There is less risk of damage caused by vibration during transportation following the fluctuation of bending.
特に、請求項３に記載の発明によれば、吊下げ手段が吊り下げ長さ調整機構を有しているので、左右の水平の微調整や位置調整が極めて正確に素早くできるため、さらに作業効率向上させて、作業時間の短縮によるコストダウンを達成することができる。 In particular, according to the invention described in claim 3, since the suspending means has the suspending length adjustment mechanism, the left and right horizontal fine adjustments and position adjustments can be performed very accurately and quickly. The cost can be reduced by reducing the working time.
特に、請求項４に記載の発明によれば、運搬時には、吊下げ手段で前記部材を吊り上げつつ前記押圧手段で前記部材を押圧固定して運搬するので、部材の振動によるバタつきを抑えて部材を損傷することなく運搬することができる。また、請求項４に記載の発明によれば、据付時には、吊下げ手段で吊り降ろして部材の水平及び据付位置の高さ調整を行うので、左右の水平の微調整や位置調整が極めて正確に素早くできるため、さらに作業効率向上させて、作業時間の短縮によるコストダウンを達成することができる。 In particular, according to the invention described in claim 4, during transportation, the member is pressed and fixed by the pressing means while the member is lifted by the suspension means, and thus the member is prevented from fluttering due to vibration of the member. Can be transported without damage. In addition, according to the invention described in claim 4, since the height of the horizontal position and the installation position of the member is adjusted by hanging by means of the hanging means during installation, the left and right horizontal fine adjustment and position adjustment are extremely accurate. Since it can be performed quickly, the work efficiency can be further improved and the cost can be reduced by shortening the work time.
以下、本発明に係るフォークリフト用運搬据付治具及びそれを用いた部材運搬据付方法を実施するための一実施形態について、図面を参照しながら詳細に説明する。 Hereinafter, an embodiment for carrying out a forklift carrying installation jig and a member carrying installation method using the same according to the present invention will be described in detail with reference to the drawings.
＜フォークリフト用運搬据付治具＞
先ず、図１〜図６を用いて、本発明の実施形態に係るフォークリフト用運搬据付治具について説明する。運搬・据付を行う部材としてコンクリート部材であるＰＣａ床版Ｓ１を例示して説明する。
<Forklift transportation installation jig>
First, a forklift transport installation jig according to an embodiment of the present invention will be described with reference to FIGS. A PCa floor slab S1 which is a concrete member will be described as an example of a member for carrying and installing.
図１は、本発明の実施形態に係るフォークリフト用運搬据付治具１をフォークリフトＦＬに装着した状態を示すフォークリフトＦＬに向かって斜め前方から撮った正面写真であり、図２は、フォークリフト用運搬据付治具１をフォークリフトＦＬに装着した状態で斜め後方から撮った背面写真である。 FIG. 1 is a front view photographed obliquely from the front toward the forklift FL showing a state in which the forklift transport installation jig 1 according to the embodiment of the present invention is mounted on the forklift FL, and FIG. 2 is a forklift transport installation. It is the back photograph taken from diagonally behind in the state where jig 1 was attached to forklift FL.
また、図３は、フォークリフト用運搬据付治具１の構成をフォークリフトＦＬに装着した状態で示す側面図であり、図４は、同上のフォークリフト用運搬据付治具１を示す正面図である。そして、図５は、図３の端面図であり、左半分がＡ−Ａ線端面図、右半分がＢ−Ｂ線端面図であり、図６は、図３の左半分がＣ−Ｃ線端面図、右半分がＤ−Ｄ線端面図である。 FIG. 3 is a side view showing the configuration of the forklift transport installation jig 1 mounted on the forklift FL, and FIG. 4 is a front view showing the same forklift transport installation jig 1. 5 is an end view of FIG. 3, the left half is an end view taken along line AA, the right half is an end view taken along line BB, and FIG. 6 is a left half of FIG. 3 taken along line CC. An end view and the right half are DD line end views.
本実施形態に係るフォークリフト用運搬据付治具１は、治具本体である鋼製フレーム１０と、この鋼製フレーム１０にＰＣａ床版Ｓ１を吊り下げ支持する吊下げ手段２と、ＰＣａ床版Ｓ１に当接して押圧固定する押圧手段３など、から構成されている。また、鋼製フレーム１０には、鋼製フレーム１０をフォークリフトＦＬのフォークｆ１に装着するための装着手段４も設けられている。 A forklift transport installation jig 1 according to the present embodiment includes a steel frame 10 that is a jig body, a suspension means 2 for hanging and supporting a PCa floor slab S1 on the steel frame 10, and a PCa floor slab S1. It is comprised from the press means 3 etc. which contact | abut and fix. The steel frame 10 is also provided with mounting means 4 for mounting the steel frame 10 on the fork f1 of the forklift FL.
（鋼製フレーム）
鋼製フレーム１０は、一般構造用圧延鋼材（SS400）からなる平面視矩形枠状のフレームであり、ＰＣａ床版Ｓ１を吊り下げ支持するのに必要な強度を有している。この鋼製フレーム１０は、図１、図２に示すように、Ｈ形鋼（H300×150×6.5/9）からなる３本の横桁１１と、その横桁１１の上端部に取り付けられた背面で接合された溝形鋼（C150×75×6.5/10）からなる２本の縦桁１２など、から日の字状に組み合わされてボルト接合されている。
(Steel frame)
The steel frame 10 is a frame having a rectangular frame shape made of a general structural rolled steel (SS400), and has a strength necessary for hanging and supporting the PCa floor slab S1. As shown in FIGS. 1 and 2, the steel frame 10 is attached to three cross beams 11 made of H-section steel (H300 × 150 × 6.5 / 9) and the upper end of the cross beam 11. The two stringers 12 made of channel steel (C150 × 75 × 6.5 / 10) joined on the back side are bolted by being combined in the shape of a string.
これらの３本の横桁１１のうち、図４に示すように、前後の２本の横桁１１の上面には、鋼製フレーム１０を吊り上げてフォークリフトＦＬに装着する際に使用する左右一対の吊上げプレート１１ａが上方へ向け突設されている。また、図６に示すように、中央の横桁１１の下面には、種々の資材を吊り下げるための左右一対の吊下げプレート１１ｂが下方に向け突設されている。 Of these three cross beams 11, as shown in FIG. 4, a pair of left and right used for lifting the steel frame 10 and mounting it on the forklift FL on the upper surfaces of the two front and rear cross beams 11 is used. A lifting plate 11a protrudes upward. Further, as shown in FIG. 6, a pair of left and right hanging plates 11b for hanging various materials are provided on the lower surface of the central cross beam 11 so as to project downward.
また、図１〜図３に示すように、縦桁１２の溝形鋼の間には、吊下げ手段２の一般構造用圧延鋼材（SS400）のプレートからなる吊下げ金具２０が介装されて、縦桁１２の上端面にボルト接合されている。 Moreover, as shown in FIGS. 1-3, between the grooved steel of the stringer 12, the hanging metal fitting 20 which consists of a plate of the general structural rolled steel (SS400) of the suspension means 2 is interposed. The bolt 12 is joined to the upper end surface of the stringer 12.
なお、各横桁１１には、図１、図２、図４等に示すように、部材の曲げ座屈等を防ぐために補剛プレート（スチフナー）が溶接されており、各縦桁１２には、横桁１１と接合する部分に座屈防止用のプレートが取り付けられている。 As shown in FIGS. 1, 2, 4, etc., a stiffening plate (stiffener) is welded to each cross beam 11 to prevent bending buckling of the member. A buckling prevention plate is attached to a portion to be joined to the cross beam 11.
（吊下げ手段）
吊下げ手段２は、図１〜図３等に示すように、前述の吊下げ金具２０と、この吊下げ金具２０の孔に装着されたシャックル２１と、このシャックル２１に取り付けられたチェーンブロックやレバーブロック（登録商標）などの吊り下げ長さ調整機構２２など、から構成されている。この吊下げ手段２は、ＰＣａ床版Ｓ１にアンカー等を介して装着された吊りフックを吊り下げて支持する機能を有している。
(Hanging means)
As shown in FIGS. 1 to 3 and the like, the suspending means 2 includes the above-described suspending fitting 20, a shackle 21 attached to a hole of the suspending fitting 20, a chain block attached to the shackle 21, It is composed of a hanging length adjusting mechanism 22 such as a lever block (registered trademark). The suspending means 2 has a function of suspending and supporting a suspension hook mounted on the PCa floor slab S1 via an anchor or the like.
勿論、吊り下げ長さ調整機構２２は、チェーンブロックやレバーブロック（登録商標）などに限られず、電動ホイストなどの電動の吊り下げ長さ調整機構であっても構わない。要するに、本発明に係る吊り下げ長さ調整機構は、チェーンやワイヤロープなどの線材を巻き上げ及び巻き出し等が自在でその線材の長さを調整することができるものであればどのような機構であっても構わない。 Of course, the suspension length adjustment mechanism 22 is not limited to a chain block or a lever block (registered trademark), and may be an electrical suspension length adjustment mechanism such as an electric hoist. In short, the suspension length adjusting mechanism according to the present invention is any mechanism that can freely wind up and unwind a wire such as a chain or wire rope and adjust the length of the wire. It does not matter.
（押圧手段）
押圧手段３は、図５等に示すように、ボルトで接合された上下一対の鋼製プレートからなる枕木固定金具３０と、この枕木固定金具３０の下端面に取り付けられたヒンジ３１と、このヒンジ３１の下端に取り付けられた枕木３２など、から構成されている。
(Pressing means)
As shown in FIG. 5 and the like, the pressing means 3 includes a sleeper fixing bracket 30 composed of a pair of upper and lower steel plates joined by bolts, a hinge 31 attached to the lower end surface of the sleeper fixing bracket 30, and the hinge. It is comprised from the sleeper 32 etc. which were attached to the lower end of 31.
この押圧手段３は、各フォークｆ１に前後一対計４箇所装着され、前述の吊下げ手段２でＰＣａ床版Ｓ１を吊り上げつつ、ＰＣａ床版Ｓ１とフォークｆ１との間に枕木３２を介在させることでＰＣａ床版Ｓ１を押圧して固定する機能を有している。 This pressing means 3 is attached to each fork f1 in a pair of front and rear, for a total of four places, and a sleeper 32 is interposed between the PCa floor slab S1 and the fork f1 while the PCa floor slab S1 is lifted by the above-described suspension means 2. The PCa floor slab S1 is pressed and fixed.
この枕木固定金具３０は、上下一対の鋼製プレートでフォークｆ１を挟み込んで挟持することでヒンジ３１を介して枕木３２を固定する機能を有している。 The sleeper fixing bracket 30 has a function of fixing the sleeper 32 via the hinge 31 by sandwiching the fork f1 between a pair of upper and lower steel plates.
また、ヒンジ３１は、支持するＰＣａ床版Ｓ１の短手方向に沿って揺動自在となるように取り付けられており、フォークリフトＦＬの運搬時の振動によりＰＣａ床版Ｓ１が撓んだ場合でも、その傾斜角度の変動に追随可能となっている。このため、ＰＣａ床版Ｓ１が振動で撓んでも枕木３２がずれるおそれが少なく、運搬中の振動でＰＣａ床版Ｓ１を損傷させるおそれも少ない。勿論、ヒンジ３１は、ＰＣａ床版Ｓ１の長手方向に沿って揺動自在となるように取り付けられていてもよいことは云うまでもない。要するに、本発明に係るヒンジは、支持する部材の振動等による撓みに追随して揺動可能に構成されていればよい。 Further, the hinge 31 is attached so as to be swingable along the short direction of the PCa floor slab S1 to be supported, and even when the PCa floor slab S1 is bent due to vibration during transportation of the forklift FL, It is possible to follow the fluctuation of the inclination angle. For this reason, even if the PCa floor slab S1 is bent by vibration, the sleeper 32 is less likely to be displaced, and the PCa floor slab S1 is less likely to be damaged by vibration during transportation. Of course, it is needless to say that the hinge 31 may be attached so as to be swingable along the longitudinal direction of the PCa floor slab S1. In short, the hinge according to the present invention only needs to be configured to be able to swing following the bending of the supporting member due to vibration or the like.
そして、ＰＣａ床版Ｓ１と当接する部分にコンクリートより表面硬度が低い木製の枕木３２を使用することで、コンクリート製のＰＣａ床版Ｓ１に傷を付けるおそれがないだけでなく、安価で且つ繰り返し使用可能とすることができる。 And, by using the wooden sleeper 32 whose surface hardness is lower than that of concrete at the part that comes into contact with the PCa floor slab S1, there is no risk of scratching the concrete PCa floor slab S1, and it is inexpensive and can be used repeatedly. Can be possible.
（装着手段）
装着手段４は、３本の横桁１１のそれぞれの横桁１１の下端に左右一対ずつボルト接合されたフォーク固定金具４０と、フォークｆ１に対する前後のズレを防止するズレ止め金具４１など、から構成されている。
(Wearing means)
The mounting means 4 includes a fork fixing bracket 40 that is bolted to the lower end of each of the three cross beams 11 by a pair of left and right bolts, a shift stopper 41 that prevents front and rear shifts with respect to the fork f1, and the like. Has been.
このフォーク固定金具４０は、厚さ１２ｍｍ程度のプレートの上面が切削加工されて装着するフォークｆ１の傾斜面に応じて下端面が水平面となるように構成されている。このため、フォークｆ１の傾斜面とプレートの上面の傾斜面とにより、鋼製フレーム１０がフォークｆ１に沿って後方へズレることがない。 The fork fixing bracket 40 is configured such that the lower end surface is a horizontal plane according to the inclined surface of the fork f1 mounted by cutting the upper surface of a plate having a thickness of about 12 mm. For this reason, the steel frame 10 does not shift backward along the fork f1 due to the inclined surface of the fork f1 and the inclined surface of the upper surface of the plate.
また、ズレ止め金具４１は、図２、図３に示すように、２本の鋼製のＬ形アングル（L75×75×9）をボルトで結合した金具であり、フォークｆ１の基端部に後方の横桁１１を掛け止めて、鋼製フレーム１０全体が、フォークｆ１に沿って前方へズレることを防止する機能を有している。 Further, as shown in FIGS. 2 and 3, the shift stopper 41 is a bracket in which two steel L-shaped angles (L75 × 75 × 9) are coupled with bolts, and is attached to the base end of the fork f1. The rear horizontal girder 11 is hooked to prevent the entire steel frame 10 from being displaced forward along the fork f1.
＜部材運搬据付方法＞
次に、図１、図２、図７を用いて、本発明の実施形態に係る部材運搬据付方法について説明する。前述の本発明の実施形態に係るフォークリフト用運搬据付治具１を用いて、コンクリート部材であるＰＣａ床版Ｓ１を運搬して据え付ける場合を例示して説明する。
<Member transportation installation method>
Next, the member transport installation method according to the embodiment of the present invention will be described with reference to FIGS. 1, 2, and 7. The case where the PCa floor slab S1 which is a concrete member is transported and installed using the forklift transport installation jig 1 according to the above-described embodiment of the present invention will be described as an example.
（１）治具装着工程
先ず、本発明の実施形態に係る部材運搬据付方法では、前述のフォークリフト用運搬据付治具１をフォークリフトＦＬに装着する治具装着工程を行う（図示せず）。
(1) Jig Mounting Process First, in the member transport installation method according to the embodiment of the present invention, a jig mounting process for mounting the forklift transport installation jig 1 on the forklift FL is performed (not shown).
具体的には、クレーンなどの揚重機を用いて、フォークリフト用運搬据付治具１を吊上げプレート１１ａを利用して吊り上げた状態で、装着手段４のフォーク固定金具４０にフォークリフトＦＬのフォークｆ１を挿入してボルトを締めて装着する。 More specifically, the fork f1 of the forklift FL is inserted into the fork fixing bracket 40 of the mounting means 4 in a state where the forklift transport installation jig 1 is lifted using the lifting plate 11a using a crane or other heavy lifting machine. Then tighten the bolts.
（２）床版吊上工程
次に、本実施形態に係る部材運搬据付方法では、前工程でフォークリフトＦＬに装着したフォークリフト用運搬据付治具１に床版を吊り上げる床版吊上工程を行う（図示せず）。
(2) Floor slab lifting process Next, in the member transport installation method according to the present embodiment, a floor slab lifting process for lifting the floor slab on the forklift transport installation jig 1 attached to the forklift FL in the previous process is performed ( Not shown).
具体的には、先ず、予め埋設された雌ネジ等を利用して吊りフックをＰＣａ床版Ｓ１に装着する。そして、図２に示すように、その吊りフックにチェーンブロックやレバーブロック（登録商標）などの吊り下げ長さ調整機構２２のフックを掛け止めて吊り上げる。このとき、吊り下げ長さ調整機構２２による吊上げは、押圧手段３の枕木３２がＰＣａ床版Ｓ１に当接し、ＰＣａ床版Ｓ１がある程度撓んで押圧力が掛かるまでとする。 Specifically, first, a hanging hook is attached to the PCa floor slab S1 using a previously embedded female screw or the like. Then, as shown in FIG. 2, the hook of the suspension length adjusting mechanism 22 such as a chain block or a lever block (registered trademark) is hung on the suspension hook. At this time, the lifting by the suspension length adjusting mechanism 22 is performed until the sleepers 32 of the pressing means 3 come into contact with the PCa floor slab S1, and the PCa floor slab S1 is bent to some extent and applied with a pressing force.
（３）床版運搬工程
次に、図１、図７に示すように、本実施形態に係る部材運搬据付方法では、前工程で吊上げたＰＣａ床版Ｓ１をフォークリフトＦＬのフォークｆ１で揚重して所定の据付位置まで運搬する床版運搬工程を行う。
(3) Floor slab transportation process Next, as shown in FIGS. 1 and 7, in the member transportation installation method according to the present embodiment, the PCa floor slab S1 suspended in the previous process is lifted by the fork f1 of the forklift FL. The floor slab is transported to the specified installation position.
具体的には、新設のＰＣａ床版Ｓ１を持ち上げたまま、フォークリフトＦＬで既設のＰＣａ床版Ｓ１上を走行して運搬する。このとき、既設のＰＣａ床版Ｓ１同士の間には、ＰＣａ床版Ｓ１同士を一体化するため間詰めコンクリートを打設する間隔が存在するため、フォークリフトＦＬで走行できるように、ＰＣａ床版Ｓ１間に亘って鉄板ＳＰを敷設する（図８参照）。 Specifically, the new PCa floor slab S1 is lifted and traveled on the existing PCa floor slab S1 by the forklift FL. At this time, there is a space between the existing PCa floor slabs S1 for placing the interstitial concrete so as to integrate the PCa floor slabs S1, so that the PCa floor slab S1 can be driven by the forklift FL. An iron plate SP is laid between them (see FIG. 8).
また、鉄板ＳＰでＰＣａ床版Ｓ１に傷が付かないように、鉄板ＳＰとＰＣａ床版Ｓ１との間にベニア板などの緩衝材を敷く（図７参照）。勿論、ベニア板に追加して、又はベニア板代わりに緩衝材としてゴム板や樹脂板などを敷いてもよいことは云うまでもない。 Further, a buffer material such as a veneer plate is placed between the iron plate SP and the PCa floor slab S1 so that the PCa floor slab S1 is not damaged by the iron plate SP (see FIG. 7). Of course, it goes without saying that a rubber plate or a resin plate may be laid as a buffer material in addition to the veneer plate or instead of the veneer plate.
本工程では、前述のように、フォークリフト用運搬据付治具１で吊下げ手段２でＰＣａ床版Ｓ１を吊り下げつつ、押圧手段３でＰＣａ床版Ｓ１を押圧固定した状態で運搬する。このため、フォークリフト用運搬据付治具１は、ＰＣａ床版Ｓ１の振動によるバタつきを抑えて部材を損傷することなく運搬することができる。 In this step, as described above, while the PCa floor slab S1 is suspended by the suspension means 2 with the transportation installation jig 1 for forklifts, the PCa floor slab S1 is conveyed while being pressed and fixed by the pressing means 3. For this reason, the forklift transport installation jig 1 can be transported without damaging the members by suppressing the fluttering caused by the vibration of the PCa floor slab S1.
（４）床版据付工程
次に、図７に示すように、本実施形態に係る部材運搬据付方法では、前工程で所定の据付位置まで運搬したＰＣａ床版Ｓ１を所定の位置に据え付ける床版据付工程を行う。
(4) Floor slab installation process Next, as shown in FIG. 7, in the member transport installation method according to the present embodiment, the floor slab for mounting the PCa floor slab S1 transported to the predetermined installation position in the previous process at the predetermined position. Perform the installation process.
具体的には、フォークリフトＦＬのフォークｆ１を降ろして行き、据付位置となるシールドトンネル底面の溝に当接する直前でフォークｆ１を停止する。 Specifically, the fork f1 of the forklift FL is lowered, and the fork f1 is stopped immediately before coming into contact with the groove on the bottom surface of the shield tunnel serving as the installation position.
そして、吊り下げ長さ調整機構２２でチェーン等を巻出してＰＣａ床版Ｓ１の水平を確保しつつ吊り降ろしていく。このとき、バール等を用いてシールドトンネル底面の溝に対する左右の微調整も行う。 Then, the chain or the like is unwound by the suspending length adjusting mechanism 22 and is suspended while ensuring the level of the PCa floor slab S1. At this time, fine adjustment of the left and right of the groove on the bottom surface of the shield tunnel is also performed using a bar or the like.
これにより、左右の水平の微調整や位置調整が極めて正確に行えるとともに、ＰＣａ床版Ｓ１を正確な据付位置に素早く短時間に設置することが可能となる。よって、作業効率向上させて、作業時間の短縮によるコストダウンを達成することができる。 As a result, the left and right horizontal fine adjustment and position adjustment can be performed very accurately, and the PCa floor slab S1 can be quickly and quickly installed at an accurate installation position. Therefore, the work efficiency can be improved and the cost can be reduced by shortening the work time.
最後に、吊り下げ長さ調整機構２２のフックを外すとともに、ＰＣａ床版Ｓ１のフックも取り外して床版の運搬据付作業が終了する。 Finally, the hook of the hanging length adjusting mechanism 22 is removed, and the hook of the PCa floor slab S1 is also removed, and the floor slab transportation installation work is completed.
そして、フォークリフトＦＬにフォークリフト用運搬据付治具１を装着したまま、（２）床版吊上工程〜（４）床版据付工程を繰り返すことで次々にＰＣａ床版Ｓ１を運搬して正確な位置に設置していくことができる。 Then, with the forklift FL mounting fixture 1 attached to the forklift FL, the PCa floor slab S1 is transported one after another by repeating (2) floor slab lifting process to (4) floor slab installation process, so Can be installed in.
以上説明した本実施形態に係るフォークリフト用運搬据付治具１及びそれを用いた本実施形態に係る部材運搬据付方法によれば、大型の門型クレーンや架設機を使用せずにフォークリフトＦＬによるＰＣａ床版Ｓ１の運搬・据付が可能となる。このため、ランプシールドなどの小規模且つ縦横断面における急勾配を有するトンネルにおいても使用することができるだけでなく、レール材等の仮設資材のリース料が嵩むことがなく安価となる。その上、フォークリフトＦＬ１台で運搬と据付を続けて行うことができるため、揚重手段の盛替等が必要なくなり、作業時間を短縮してコストダウンを達成することができる。 According to the forklift transport installation jig 1 according to the present embodiment described above and the member transport installation method according to the present embodiment using the same, the PCa by the forklift FL without using a large portal crane or a construction machine. The floor slab S1 can be transported and installed. For this reason, it can be used not only in a small-scale tunnel having a steep slope in a vertical and horizontal cross section such as a lamp shield, but the lease fee for temporary materials such as rail materials does not increase and is inexpensive. In addition, since transportation and installation can be carried out continuously with one forklift FL, it is not necessary to replace the lifting means, and the working time can be shortened to achieve cost reduction.
また、本実施形態に係るフォークリフト用運搬据付治具１及び部材運搬据付方法によれば、吊下げ手段２でＰＣａ床版Ｓ１を吊り下げつつ、押圧手段３でＰＣａ床版Ｓ１を押圧固定して運搬する。このため、ＰＣａ床版Ｓ１の振動によるバタつきを抑えて部材を損傷することなく運搬することができる。 Further, according to the forklift transport installation jig 1 and the member transport installation method according to the present embodiment, the PCa floor slab S1 is pressed and fixed by the pressing means 3 while the PCa floor slab S1 is suspended by the suspension means 2. Carry. For this reason, the fluttering caused by vibration of the PCa floor slab S1 can be suppressed, and the member can be transported without being damaged.
その上、本実施形態に係るフォークリフト用運搬据付治具１及び部材運搬据付方法によれば、フォークリフトＦＬのフォークｆ１の上下動だけでなく、吊下げ手段２でＰＣａ床版Ｓ１の高さ調整及び左右の位置調整が可能であり据付作業を正確に行うことができる。それに加え、1台のフォークリフトＦＬで運搬と据付をつづけて行うことができるため、極めて作業効率が良く、その点でも作業時間を短縮してコストダウンを達成することができる。 Moreover, according to the forklift transport installation jig 1 and the member transport installation method according to the present embodiment, not only the vertical movement of the fork f1 of the forklift FL, but also the height adjustment of the PCa floor slab S1 by the suspension means 2 and The left and right positions can be adjusted, and the installation work can be performed accurately. In addition, since a single forklift FL can be continuously transported and installed, the work efficiency is very good. In this respect, the work time can be shortened and the cost can be reduced.
以上、本発明の本実施形態に係るフォークリフト用運搬据付治具及びそれを用いた本実施形態に係る部材運搬据付方法について詳細に説明した。しかし、前述した又は図示した実施形態は、いずれも本発明を実施するにあたって具体化した一実施形態を示したものに過ぎず、これらによって本発明の技術的範囲が限定的に解釈されてはならないものである。 The forklift transport installation jig according to the present embodiment of the present invention and the member transport installation method according to the present embodiment using the same have been described in detail. However, each of the above-described or illustrated embodiments is merely a specific embodiment for carrying out the present invention, and the technical scope of the present invention should not be construed as being limited thereto. Is.
特に、本発明の本実施形態に係るフォークリフト用運搬据付治具及び部材運搬据付方法で運搬・据付を行う部材としてＰＣａ床版を例示して説明したが、梁材、セグメントなどのコンクリート部材だけでなく、鋼製部材や木材などにも適用することができる。要するに、トンネルや橋梁下などの狭隘な空間を運搬して所定の位置に正確に設置することが必要な床材や壁材などの板状材や梁材や管材などの長尺材には、好適に適用することができる。 In particular, the PCa floor slab has been exemplified and described as a member that is transported and installed by the forklift transport installation jig and the member transport installation method according to the present embodiment of the present invention. It can be applied to steel members and wood. In short, plate-like materials such as floor materials and wall materials that need to be transported in narrow spaces such as under tunnels and bridges and installed accurately in place, and long materials such as beams and pipes, It can be suitably applied.
ＦＬ：フォークリフト
ｆ１：フォーク
Ｓ１：ＰＣａ床版（部材）
１：フォークリフト用運搬据付治具
１０：鋼製フレーム（フレーム）
１１：横桁
１１ａ：吊上げプレート
１１ｂ：吊下げプレート
１２：縦桁
２：吊下げ手段
２０：吊下げ金具
２１：シャックル
２２：（チェーンブロック，レバーブロック（登録商標））吊り下げ長さ調整機構
３：押圧手段
３０：枕木固定金具
３１：ピポットヒンジ
３２：枕木
４：装着手段
４０：フォーク固定金具
４１：ズレ止め金具
ＳＰ：鉄板
FL: Forklift f1: Fork S1: PCa floor slab (member)
1: Forklift transport installation jig 10: Steel frame (frame)
11: Cross beam 11a: Lifting plate 11b: Hanging plate 12: Vertical beam 2: Hanging means 20: Hanging metal fitting 21: Shackle 22: (Chain block, Lever block (registered trademark)) Hanging length adjusting mechanism 3 : Pressing means 30: sleeper fixing bracket 31: pivot hinge 32: sleeper 4: mounting means 40: fork fixing bracket 41: misalignment stopper SP: iron plate
Claims (4)
前記部材を吊り下げ支持可能な強度を有するフレームと、このフレームを前記フォークに装着するための装着手段と、前記フレームに取り付けられて前記部材を吊り下げ支持する吊下げ手段と、前記フレーム又は前記フォークと前記部材との間に介装されて前記部材を押圧固定する押圧手段と、を備えること
を特徴とするフォークリフト用運搬据付治具。 A forklift transport installation jig that is mounted on the forklift fork and adjusts the position of the parts during transport and installation,
A frame having strength capable of supporting the suspension of the member; a mounting means for mounting the frame on the fork; a suspension means attached to the frame to support the member; and the frame or the frame A forklift transport installation jig, comprising: a pressing means interposed between the fork and the member to press and fix the member.
を特徴とする請求項１に記載のフォークリフト用運搬据付治具。 The transport installation jig for forklift according to claim 1, wherein the pressing means has a swingable hinge.
を特徴とする請求項１又は２に記載のフォークリフト用運搬据付治具。 The forklift transport installation jig according to claim 1 or 2, wherein the suspension means includes a suspension length adjusting mechanism such as a chain block or an electric hoist.
運搬時には、前記吊下げ手段で前記部材を吊り上げつつ前記押圧手段で前記部材を押圧固定して運搬し、
据付時には、吊下げ手段で吊り降ろして前記部材の水平及び据付位置の高さ調整を行うこと
を特徴とする部材運搬据付方法。 Using the transport installation jig for forklifts according to any one of claims 1 to 3, a member transport installation method for transporting the member and installing it at a predetermined position,
During transportation, the member is pressed and fixed by the pressing means while the member is lifted by the suspension means, and is transported.
At the time of installation, the member transportation installation method is characterized in that the height of the horizontal position and the installation position of the member is adjusted by hanging down with a suspension means.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2017135355A JP7008437B2 (en) | 2017-07-11 | 2017-07-11 | PCa floor slab transportation and installation jig for forklift trucks and PCa floor slab transportation and installation method using it |
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| JP2017135355A JP7008437B2 (en) | 2017-07-11 | 2017-07-11 | PCa floor slab transportation and installation jig for forklift trucks and PCa floor slab transportation and installation method using it |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023061640A (en) * | 2021-10-20 | 2023-05-02 | 大貫木材工業株式会社 | Formwork hanging tool |
| WO2024050986A1 (en) * | 2022-09-05 | 2024-03-14 | 中车长春轨道客车股份有限公司 | Pre-assembly tool |
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|---|---|---|---|---|
| JPS5713599U (en) * | 1980-06-30 | 1982-01-23 | ||
| EP0053009A2 (en) * | 1980-11-21 | 1982-06-02 | John Henry Davis | A load lifting attachment for use with a fork lift truck, hoist, crane or the like |
| JPS57131595U (en) * | 1981-02-06 | 1982-08-16 | ||
| JPH01181691A (en) * | 1988-01-14 | 1989-07-19 | Kawasaki Steel Corp | Suspended beam for crane |
| JPH0614193U (en) * | 1992-07-21 | 1994-02-22 | 東洋運搬機株式会社 | Cargo handling vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5713599U (en) * | 1980-06-30 | 1982-01-23 | ||
| EP0053009A2 (en) * | 1980-11-21 | 1982-06-02 | John Henry Davis | A load lifting attachment for use with a fork lift truck, hoist, crane or the like |
| JPS57131595U (en) * | 1981-02-06 | 1982-08-16 | ||
| JPH01181691A (en) * | 1988-01-14 | 1989-07-19 | Kawasaki Steel Corp | Suspended beam for crane |
| JPH0614193U (en) * | 1992-07-21 | 1994-02-22 | 東洋運搬機株式会社 | Cargo handling vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023061640A (en) * | 2021-10-20 | 2023-05-02 | 大貫木材工業株式会社 | Formwork hanging tool |
| WO2024050986A1 (en) * | 2022-09-05 | 2024-03-14 | 中车长春轨道客车股份有限公司 | Pre-assembly tool |
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|---|---|
| JP7008437B2 (en) | 2022-02-10 |
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