JP3015762U - Scaffolding board for tower crane assembly / disassembly work - Google Patents
Scaffolding board for tower crane assembly / disassembly workInfo
- Publication number
- JP3015762U JP3015762U JP1995001849U JP184995U JP3015762U JP 3015762 U JP3015762 U JP 3015762U JP 1995001849 U JP1995001849 U JP 1995001849U JP 184995 U JP184995 U JP 184995U JP 3015762 U JP3015762 U JP 3015762U
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- Japan
- Prior art keywords
- scaffolding plate
- boom
- unit
- metal fitting
- scaffolding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Jib Cranes (AREA)
Abstract
(57)【要約】
【目的】 この考案は、タワークレーンの組立・解体作
業に用いる足場板で、特にブームに対する脱着が遠隔操
作によって行うことができ、作業の安全性と効率性の向
上を狙った足場板を提供することを目的とする。
【構成】 ブームに対する足場板の脱着機構と、親綱支
柱とを有するタワークレーン組立・解体作業用足場板
で、脱着機構は、単位足場板の前端部寄り下面に取り付
けた自動クランプ金具１１と、後端部寄り下面に取り付
けた手動クランプ金具１２からなり、自動クランプ金具
１１は、単位足場板の後端部に設けた開閉操作用ワイヤ
ーの端末把持具１０ｅによって開閉操作するように構成
し、ブームの横桟部材に前記前後クランプ金具１１，１
２を介して着脱自在にクランプさせるように構成し、親
綱支柱１３は、単位足場板１の前端部上面に下端部を枢
支１３ａさせ、上端部を単位足場板の後端方向に前記枢
支部を支点として反転させ垂直に自立する構成として取
り付けたことを特徴とする。
(57) [Summary] [Objective] The present invention is a scaffolding board used for assembling and disassembling work of a tower crane. Especially, it is possible to remotely attach and detach the boom, aiming at improving work safety and efficiency. The purpose is to provide a scaffolding board. [Structure] A scaffolding plate for tower crane assembly / disassembly work that has a mechanism for attaching / detaching the scaffolding plate to the boom, and a main rope column. The attachment / detachment mechanism is an automatic clamp metal fitting 11 attached to the lower surface near the front end of the unit scaffolding plate, It consists of a manual clamp metal fitting 12 attached to the lower surface near the rear end portion, and the automatic clamp metal fitting 11 is configured to be opened and closed by a terminal gripping tool 10e of an opening and closing operation wire provided at the rear end portion of the unit scaffolding plate, and a boom. The front and rear clamp fittings 11 and 1 are attached to the cross rail member of
The main rope column 13 has a lower end pivotally supported on the upper surface of the front end portion of the unit scaffolding plate 13a and an upper end portion of the unit scaffolding plate in the rear end direction of the unit scaffolding plate. It is characterized in that it is attached so as to be vertically independent by inverting the branch as a fulcrum.
Description
【０００１】[0001]
この考案は、タワークレーンの組立・解体作業に用いる足場板に関するもので ある。特に足場板のブームに対する脱着が遠隔操作によって行うことができるよ うに構成した脱着機構と親綱支柱とを装備したタワークレーン組立・解体作業用 の足場板に関するものである。 The present invention relates to a scaffolding board used for assembling and dismantling work of a tower crane. In particular, the present invention relates to a scaffold plate for tower crane assembly / disassembly work, which is equipped with a desorption mechanism and a main rope support configured so that the scaffold plate can be detached / attached to / from the boom by remote control.
【０００２】[0002]
周知のように、起伏形ジブ式タワークレーンであれ、水平形ジブ式タワークレ ーンであれ、組立・解体作業に際してはブームに対するローピングや玉掛け作業 のため作業員がブーム上を移動しながら行わねばならない。そこで、この移動時 の安全を確保するため、従来は、ブーム上に足場板を番線等を用いて結束固定さ せたり、単管パイプをクランプ金具を利用して取り付け、親綱支柱を設けたりし ていた。つまり安全作業のための足場や安全綱等を取り付けるようにしていた。 As is well known, whether it is an undulating jib tower crane or a horizontal jib tower crane, workers must move on the boom during assembly and disassembly for roping and slinging work on the boom. . Therefore, in order to ensure safety during this movement, conventionally, scaffolding boards were bound and fixed on the boom using a numbered wire, single pipes were attached using clamp fittings, and main rope columns were provided. Was. In other words, scaffolding for safety work and safety lines were attached.
【０００３】[0003]
しかし、この従来方法によると、その足場板、親綱支柱の取り付け、取り外し 作業に手間が掛かり過ぎる欠点があった。例えば、図３で示す起伏形ジブ式タワ ークレーンの組立の場合は、まず、ブームの地組作業の段階において、あらかじ め足場板や親綱支柱等を番線やクランプ金具等を用いてブームに取付け、この足 場板や親綱を利用してブームに対するローピングや玉掛け作業等を行い、その作 業が終了したのち、前記ブームに取り付けた足場板や親綱支柱等の取り外しを行 っていた。 また、建築工事終了後タワークレーンを解体撤去する場合は、ブームを水平状 態にし、その上に再度足場板や親綱支柱を取り付け、この足場を利用し解体作業 のためのローピングや玉掛け作業を行っていた。この組立・解体作業毎の足場板 や親綱支柱のブームに対する取付け、取り外し作業は、高所作業をともなう関係 から、その作業の安全確保の上からも、また、手間が掛かり過ぎるという点から も問題とされていた。 However, this conventional method has a drawback that it takes too much time to attach and detach the scaffold plate and the main rope support. For example, in the case of assembling the undulating jib-type tower crane shown in Fig. 3, first, at the stage of the boom erection work, scaffolding boards, main ropes, etc., are first assembled into the boom by using number lines and clamp fittings. After installing the scaffolding board and the main rope, the boom was roped and slinged.After the work was completed, the scaffolding board and the main rope support attached to the boom were removed. . In addition, when dismantling and removing the tower crane after the completion of construction work, place the boom in a horizontal position, attach scaffolding boards and main rope posts again on it, and use this scaffolding for roping and slinging work for dismantling work. I was going. The attachment / detachment work of the scaffolding plate and main rope support for the boom for each assembling / disassembling work is associated with work at a high place, from the viewpoint of ensuring the safety of the work and from the point of taking too much labor. It was a problem.
【０００４】 この考案は、このような欠点や問題点を解決したブームに対する足場板の脱着 作業が安全に、しかも効率的にできる脱着機構および親綱支柱を装備したタワー クレーン組立・解体作業用の足場板を提供することを目的として考案したもので ある。The present invention is intended for assembling and disassembling work of a tower crane equipped with a detachment mechanism and a main rope support that enables the scaffolding plate to be detached and attached to a boom safely and efficiently, which solves such drawbacks and problems. It was devised for the purpose of providing a scaffolding board.
【０００５】[0005]
そこで、前記目的を達成する手段として、本考案は、ブームに対する足場板の 脱着機構と、親綱支柱とをそれぞれ単位足場板に次のように構成して装備させた 。 （１）まず、ブームに対する足場板の脱着機構としては、自動クランプ金具と手 動クランプ金具とをもって構成した。すなわち、自動クランプ金具を単位足場板 の前端部寄り下面に、手動クランプ金具を単位足場板の後端部寄りの下面にそれ ぞれ取り付け、この前後双方のクランプ金具を介して単位足場板をブームを構成 する横桟部材にクランプさせる脱着機構とした。なお、前記自動クランプ金具は 、クランプ金具を構成する円弧状フックの中間部よりやや上部を単位足場板側に 枢支し、その円弧状フックの上端部と単位足場板側との間にはばね等からなる弾 性体を介設するとともに、円弧状フックの上端部と単位足場板の後端部との間に 開閉操作用ワイヤーを連係し、この開閉操作用ワイヤーの端末把持具を前記弾性 体に抗して引けば、前記円弧状フックが弾性体に抗して開き、ブームの横桟部材 から解放され、戻せば復元力によって再クランプされる構成とした。さらに単位 足場板の前端部には吊りピースを取り付けた。 （２）次に親綱支柱は、前記単位足場板の前端部寄り上面に下端部を枢支させ、 上端部を単位足場板の後端部方向に前記枢支部を支点として反転させると垂直に 自立する構成として取り付け装備させた。 以上説明したように、単位足場板の下面前後位置に自動クランプ金具と手動ク ランプ金具を取り付け、さらに前端部の上面には、反転させると垂直に自立でき る親綱支柱を装備した単位足場板の複数ユニットを用意した。 Therefore, as a means for achieving the above-mentioned object, the present invention comprises a scaffolding plate attaching / detaching mechanism for the boom and a main rope support, each of which is configured and equipped on the unit scaffolding plate as follows. (1) First, the mechanism for attaching and detaching the scaffolding plate to and from the boom consisted of an automatic clamp metal fitting and a manual clamp metal fitting. That is, the automatic clamp metal fittings are attached to the lower surface near the front end of the unit scaffolding plate, and the manual clamp metal fittings are attached to the lower surface near the rear end portion of the unit scaffolding plate, and the unit scaffolding plate is boomed through both the front and rear clamp metal fittings. The detachable mechanism is clamped to the horizontal rail member that constitutes the. In addition, the automatic clamp metal fitting is such that the upper part of the arc-shaped hook constituting the clamp metal fitting is pivotally supported toward the unit scaffolding plate side, and a spring is provided between the upper end part of the arcuate hook and the unit scaffolding plate side. The opening / closing operation wire is linked between the upper end of the arc-shaped hook and the rear end of the unit scaffolding plate, and the terminal gripping tool of the opening / closing operation wire is connected to the elastic member. When pulled back against the body, the arcuate hook is opened against the elastic body, released from the crosspiece member of the boom, and returned to be re-clamped by the restoring force. Furthermore, a hanging piece was attached to the front end of the unit scaffolding board. (2) Next, the main rope column vertically pivots the lower end portion on the upper surface near the front end portion of the unit scaffolding plate and inverts the upper end portion toward the rear end portion of the unit scaffolding plate with the pivotal support portion as the fulcrum. It was equipped as a self-supporting structure. As described above, the unit scaffolding board is equipped with automatic clamp metal fittings and manual clamp metal fittings at the front and rear positions of the lower surface of the unit scaffolding board, and on the upper surface of the front end, which is equipped with a master rope prop that can stand vertically when inverted. Prepared multiple units.
【０００６】[0006]
そこで、タワークレーンの組立てに際しては、まず、前記単位足場板の複数ユ ニット（ブームのスパンに対応する）を用意し、それを地組して水平状態にある ブーム上に取付ける。すなわち各単位足場板の前・後端部下面に取り付けた自動 クランプ金具および手動クランプ金具を介してブームを構成する横桟部材に固定 させる。 Therefore, when assembling the tower crane, first prepare a plurality of units (corresponding to the span of the boom) of the above-mentioned unit scaffolding plate, and assemble it into a unit that is mounted on the boom in a horizontal state. That is, it is fixed to the cross rail member that constitutes the boom via the automatic clamp fittings and manual clamp fittings attached to the lower surfaces of the front and rear ends of each unit scaffolding plate.
【０００７】 一方、各単位足場板の前端部上面に装備させた親綱支柱は、それぞれ垂直に立 て起こし、各親綱支柱の上端部間に親綱を張る。そして、この複数の単位足場板 からなるいわゆる安全作業足場を利用してブームに対するワイヤーのローピング やタワーマスト上へのクレーン装置の据置作業等の玉掛け作業を行うようにした 。On the other hand, the master rope columns mounted on the upper surface of the front end portion of each unit scaffolding plate stand upright, and a master rope is stretched between the upper end portions of the respective mother rope columns. The so-called safe work scaffold consisting of multiple unit scaffolds was used to perform slinging work such as wire roping for the boom and laying of the crane device on the tower mast.
【０００８】 ついで、タワークレーンの組立て作業が完了すると、前記敷設した単位足場板 をブームより取り外す。その手順としては、まず、ブームを水平にするとともに ブームの先端部側、前記図３で言えば左側に張り出したブームの先端部側にクラ ンプさせた単位足場板から順に取り外す。さらに具体的に言えば、ブームの最先 端部に位置する単位足場板の前端部側下面の自動クランプ金具の開閉操作用ワイ ヤーを端末把持具をもってタワーマスト側に引っ張り、ブームに対するクランプ を解除する。そして後端部側の手動クランプ金具を解除してその単位足場板をブ ームから取り外す。以下、この要領で順次ブームの先端部側の単位足場板から根 元側に取付けた単位足場板を取り外す。Next, when the assembly work of the tower crane is completed, the laid unit scaffolding plate is removed from the boom. The procedure is as follows. First, make the boom horizontal, and remove the unit scaffolding plate in order from the tip of the boom, that is, the tip of the boom that projects to the left in FIG. More specifically, the wire for opening and closing the automatic clamp metal fittings on the lower surface of the front part of the unit scaffolding plate located at the foremost end of the boom is pulled to the tower mast side with the terminal gripping tool to release the clamp on the boom. To do. Then, release the manual clamp fitting on the rear end side and remove the unit scaffolding plate from the boom. Follow the procedure below to remove the unit scaffolding plates attached to the root side from the unit scaffolding plate on the tip side of the boom.
【０００９】 次に建築工事が終了し、タワークレーン自体を解体する場合は、まずブームを 水平状態にし、その上に単位足場板を解体作業用のクレーンを利用して吊り上げ る。すなわち単位足場板の前端部に取り付けた吊りピースにクレーンフックを掛 けて吊り上げる。その際、タワーマスト側、つまりブームの根元側に吊り上げる 。吊り上げられた単位足場板は、後端部を下にして縦方向の姿勢で吊り上げられ るので、まず、その単位足場板の後端部寄り下面に取り付けている手動クランプ 金具を利用してブーム側にクランプさせる。手動クランプ金具のブーム側に対す るクランプが終ったところで、その単位足場板の前端部側をゆっくりと降下させ 、自動クランプ金具を開の状態にしてブーム上に下ろし、その自動クランプ金具 を介して単位足場板をクランプさせる。ついで単位足場板の前端部寄り上面に枢 支させた親綱支柱を立て起こす。Next, when the construction work is completed and the tower crane itself is dismantled, the boom is first leveled, and the unit scaffolding plate is lifted on the boom using the crane for dismantling work. That is, the crane hook is hung on the hanging piece attached to the front end of the unit scaffolding plate to lift it. At that time, hoist it on the tower mast side, that is, on the base side of the boom. The lifted unit scaffolding board is hung in a vertical position with its rear end facing down.First, use the manual clamp metal fittings attached to the lower surface of the unit scaffolding board toward the boom end. To clamp. When the clamp of the manual clamp bracket to the boom side is finished, slowly lower the front end side of the unit scaffolding plate, open the automatic clamp bracket, and lower it onto the boom. Clamp the unit scaffolding board. Then, raise the main rope column supported on the upper surface near the front end of the unit scaffolding board.
【００１０】 以下、前記要領手順に基づいて、順次ブームの先端部側に単位足場板を敷設ク ランプさせるとともに、各親綱支柱間には、親綱を掛けわたし、ブーム上に対す る安全作業場としての足場板および親綱の設置を行う。そしてこの足場板および 親綱を利用してブームに対するワイヤー等の取外しやクレーン装置の解体のため の玉掛け作業等を行い、しかるのちブーム自体を地上に降下させ各単位足場板は ブームから取り外す。[0010] Hereinafter, based on the procedure described above, unit scaffolding plates are sequentially laid and cramped on the tip end side of the boom, and a parent rope is hung between the parent ropes to secure the work area on the boom. Scaffolding boards and parent ropes will be installed. Then, using the scaffolding board and the main rope, work such as removing wires from the boom and slinging for dismantling the crane device is performed, and then the boom itself is lowered to the ground and each unit scaffolding board is removed from the boom.
【００１１】[0011]
さらに、この考案によるタワークレーン組立・解体作業用足場板の構成・作用 を図面に示す実施例に基づいて具体的に説明する。 まず、図１は、起伏形ジブ式タワークレーンにおけるブーム１を水平状態にし 、そのブーム１上に、単位足場板１０を敷き並べクランプさせるとともに、親綱 支柱１３を立て起こし、各親綱支柱１３，１３…間に親綱２０を掛けわたした状 態を示す一部の斜視図である。図３で言えば、ブーム１を仮想線で示すようにタ ワーマストより左側に水平状態に倒し、そのブーム１上に単位足場板１０を順に 敷き並べクランプし、かつ各親綱支柱１３を立て起こすとともに、その親綱支柱 １３，１３…間に親綱２０を掛けわたし、安全作業足場を取付ける。 Further, the construction and operation of the scaffold plate for assembling and dismantling work of the tower crane according to the present invention will be concretely described based on the embodiment shown in the drawings. First, in FIG. 1, the boom 1 in an undulating jib-type tower crane is placed in a horizontal state, unit scaffolding boards 10 are laid and clamped on the boom 1, and a master rope support column 13 is erected and raised, and each master rope support pillar 13 is raised. 13 is a part of a perspective view showing a state in which the master rope 20 is hung between them. In FIG. 3, the boom 1 is tilted horizontally to the left of the tower mast as shown by the phantom line, the unit scaffolding plates 10 are sequentially laid and clamped on the boom 1, and the main ropes 13 are raised. At the same time, the master rope 20 is hung between the master rope support columns 13, 13 ..., and the safety work scaffold is attached.
【００１２】 図２は、単位足場板１０の構成を示す側面図である。図示の通り単位足場板１ ０の前端部寄り下面（図示で左側）に、自動クランプ金具１１を取り付け、後端 部に手動クランプ金具１２を取り付けた。そしてこの前後双方のクランプ金具１ １および１２をもって単位足場板１０の水平ブーム１に対する脱着機構とした。FIG. 2 is a side view showing the configuration of the unit scaffolding plate 10. As shown in the figure, an automatic clamp metal fitting 11 was attached to the lower surface (left side in the figure) of the unit scaffolding board 10 close to the front end portion, and a manual clamp metal fitting 12 was attached to the rear end portion. The front and rear clamp fittings 11 and 12 are used as a mechanism for attaching and detaching the unit scaffolding plate 10 to the horizontal boom 1.
【００１３】 実施例においては、一般的に用いられている単管パイプよりなる組立足場等に 用いられている公知の通称グラビティロック式クランプ金具を単位足場板１０の 前・後端部寄り下面にそれぞれ取り付け、この前後クランプ金具１１および１２ を介して単位足場板１０をブームを構成する横桟部材２および２に着脱自在に装 架固定させる構成とした。ただ、単位足場板１０の前端部寄り下面に取り付ける 自動クランプ金具１０は、図示のようにクランプ金具自体を構成する円弧状フッ ク１０ａの中間部よりやや上部を枢軸１０ｂを介して単位足場板１０側に枢支さ せ、上端部と単位足場板１０の前端部との間に引っ張りばね１０ｃを介設し、常 に円弧状フック１０ａが枢軸１０ｂを支点として反時計方向への回転力を付与し た構成とした。In the embodiment, a publicly known so-called gravity lock type clamp fitting used for an assembly scaffold made of a commonly used single pipe is attached to the lower surface of the unit scaffold plate 10 near the front and rear ends. The unit scaffolding plate 10 is detachably mounted and fixed to the cross rail members 2 and 2 constituting the boom via the front and rear clamp fittings 11 and 12, respectively. However, the automatic clamp metal fitting 10 attached to the lower surface of the unit scaffolding board 10 near the front end is a unit scaffolding board 10 that is slightly above the middle portion of the arcuate hook 10a that constitutes the clamp metal fitting itself via the pivot 10b. The tension spring 10c is provided between the upper end and the front end of the unit scaffolding plate 10, and the arcuate hook 10a always applies a counterclockwise rotational force with the pivot 10b as a fulcrum. It has a different configuration.
【００１４】 そして、さらに円弧状フック１０ａの上端部と単位足場板１０の後端部（図示 にて右側）との間には、開閉操作用ワイヤー１０ｄを連係し、この開閉操作用ワ イヤー１０ｄの端末に、端末把持具１０ｅを設けた構成とした。すなわち、この 端末把持具１０ｅを介して開閉操作用ワイヤー１０ｄを前記引っ張りばね１０ｃ に抗して右側に引っ張ると、前記円弧状フック１０ａが枢軸１０ｂを支点として 時計方向に回動し、ブーム１の横桟部材に対するクランプが解除されるように構 成した。なお、１４は単位足場板１０の前端部つまり左側に設けた吊りピースで ある。Further, an opening / closing operation wire 10d is linked between the upper end of the arcuate hook 10a and the rear end (right side in the figure) of the unit scaffolding plate 10, and the opening / closing operation wire 10d is connected. The terminal holding tool 10e is provided on the terminal. That is, when the open / close operation wire 10d is pulled rightward against the tension spring 10c via the terminal gripping tool 10e, the arcuate hook 10a rotates clockwise about the pivot 10b as a fulcrum, and the boom 1 of the boom 1 moves. It was configured so that the clamp for the cross rail member was released. Reference numeral 14 is a hanging piece provided on the front end portion of the unit scaffolding plate 10, that is, on the left side.
【００１５】 次に親綱支柱１３は、図２で示すように単位足場板１０の前端部寄り上面（図 示で左側）に、支軸１３ａを介して枢支し、時計方向に立て起こすと垂直に自立 することができるようにして装備した。なお、垂直に自立させる手段としての構 成は図示のように親綱支柱１３の中間部と単位足場板１０側との間にステイ１５ を設け、このステイ１５を介して垂直に自立させるように構成した。そして、さ らに図面上に明確に表示していないが、前記軸１３ａには、コイルばねを巻装し 、このコイルばねの一端を単位足場板１０側に係止させ、他端を親綱支柱１３側 に係止させた構成とするとともに、支軸１３ａの右側にはストッパー１３ｂを設 け、親綱支柱１３の垂直自立が維持される構成とした。Next, as shown in FIG. 2, the main rope column 13 is pivotally supported on the upper surface of the unit scaffolding plate 10 near the front end (left side in the figure) via a support shaft 13a, and is erected in a clockwise direction. It was equipped so that it could stand vertically. In addition, the structure as a means for making it stand vertically is such that as shown in the figure, a stay 15 is provided between the intermediate portion of the main rope column 13 and the unit scaffolding plate 10 side, and is made to stand vertically via this stay 15. Configured. Further, although not clearly shown in the drawing, a coil spring is wound around the shaft 13a, one end of the coil spring is locked to the unit scaffold plate 10 side, and the other end is connected to the main rope. The structure is such that it is locked on the side of the support column 13 and a stopper 13b is provided on the right side of the support shaft 13a so that the vertical support of the main rope support column 13 is maintained.
【００１６】 つまり前記ステイ１５を外すと、親綱支柱１３は、前記コイルばねの働きによ って支軸１３ａを支点として自動的に水平状態に倒れる構成として単位足場板１ ０に取り付けた。２０は、親綱支柱１３の上端部に連結したいわゆる安全綱とし ての親綱である。なお、図１において親綱支柱１３は、単位足場板１０の片側に のみ表示したが、両側に装備した構成とすることも可能である。In other words, when the stay 15 is removed, the main rope column 13 is attached to the unit scaffolding plate 10 so that it is automatically tilted to the horizontal state with the support shaft 13a as a fulcrum by the action of the coil spring. 20 is a master rope as a so-called safety rope connected to the upper end of the master rope support 13. In FIG. 1, the main rope column 13 is shown only on one side of the unit scaffolding plate 10, but it may be provided on both sides.
【００１７】[0017]
この考案は、以上実施例をとおして説明したように構成したので、タワークレ ーン自体を組立てる際も、また解体する際も、ブーム上に脱着機構を介して装架 した単位足場板と親綱支柱間に掛けわたした安全綱を利用してローピングや玉掛 け作業ができ、作業の安全確保に役立つことはもちろん、従来の方法に比較し、 次のような効果をもたらすことができる。 （１）単位足場板の前・後下面に、それぞれブームに対する自動クランプ金具と 手動クランプ金具を装備した構成とし、しかも、自動クランプ金具は単位足場板 の後端部側に設けた開閉操作用ワイヤーの端末把持具を介して引っ張り操作して 解放する構成としているため、ブーム上に足場板を架設する場合でも、逆に取り 外す場合でも、常に作業員は前後いずれかの単位足場板の上に乗って作業ができ る。その結果、高所作業の安全が確保される。 （２）単位足場板のブームに対する取り付けは、足場板の前後下面に取り付けた 自動クランプ金具および手動クランプ金具からなる脱着機構を介して行う構成と なっているため、従来のように単位足場板を番線を用いて取り付けていた場合に 比較し、その作業手間は著しく軽減され効率的であり安全である。もちろん取り 外す場合も同様な効果が期待される。 （３）単位足場板の前端部上面には、反転自立形式の親綱支柱が最初から装備さ れた構成となっているため、従来のようにいちいち単管パイプ等を取り付ける必 要はない。したがって、前記（２）の効用とあいまって、ブーム上における安全 作業足場の架設作業が迅速にかつ効率的に展開できる。 （４）単位足場板の前端部に吊りピースを設けているため吊り上げてブーム上に 敷設する際、その単位足場板は、後端部を下にして吊り上げられるので、まず、 後端部側の手動クランプ金具をブーム側にクランプさせ、ついで徐々に吊りワイ ヤーを緩めて前端部の自動クランプをブーム側にクランプさせることができる。 つまり、前後いずれかの単位足場板の上で取付け取外し作業ができる。その結果 、高所での足場板の架設作業として、きわめて理にかなった手順により架設がで きる。 Since the present invention is configured as described above with reference to the embodiments, the unit scaffolding board and the main rope installed on the boom via the attachment / detachment mechanism are used during assembly and disassembly of the tower crane itself. The safety rope hung between the columns can be used for roping and slinging work, which not only helps ensure work safety, but also has the following effects compared to conventional methods. (1) The front and rear lower surfaces of the unit scaffolding board are equipped with an automatic clamp metal fitting and a manual clamp metal fitting for the boom, and the automatic clamp metal fitting is a wire for opening and closing operation provided on the rear end side of the unit scaffolding board. Since it is configured to pull and operate via the terminal gripping tool of the above, the worker should always place the scaffolding board on the boom either on the front or back, regardless of whether the scaffolding board is installed on the boom or vice versa. You can ride and work. As a result, the safety of work in high places is ensured. (2) Since the unit scaffolding plate is attached to the boom via the detaching mechanism consisting of the automatic clamp metal fittings and the manual clamp metal fittings attached to the front and rear bottom surfaces of the scaffolding plate, the unit scaffolding board can be mounted as in the past. Compared with the case where it is attached using a numbered wire, the labor required is significantly reduced, and it is efficient and safe. Of course, the same effect can be expected when removing. (3) It is not necessary to attach a single pipe, etc., as in the conventional case, because the reversal self-supporting main rope column is installed from the beginning on the upper surface of the front end of the unit scaffolding plate. Therefore, together with the effect of (2), the work for constructing the safe work scaffolding on the boom can be deployed quickly and efficiently. (4) Since a lifting piece is provided at the front end of the unit scaffolding plate, when it is hoisted and laid on the boom, the unit scaffolding plate can be hoisted with its rear end facing down. The manual clamp can be clamped to the boom side, and then the hanging wire can be gradually loosened to clamp the front end automatic clamp to the boom side. In other words, the attachment and detachment work can be performed on either the front or rear unit scaffolding plate. As a result, the scaffolding board can be erected at a high place by a very reasonable procedure.
【図１】タワークレーンのブーム上に本考案に係る単位
足場板を架設して作業足場を構成した一部斜視図であ
る。FIG. 1 is a partial perspective view of a work scaffold constructed by installing a unit scaffold plate according to the present invention on a boom of a tower crane.
【図２】単位足場板の構成を示す側面図である。FIG. 2 is a side view showing a configuration of a unit scaffolding plate.
【図３】水平形ジブ式タワークレーンを示す正面図であ
る。FIG. 3 is a front view showing a horizontal jib type tower crane.
１…………ブーム ２…………ブームを構成する横桟部材 １０………単位足場板 １０ａ……円弧状フック １０ｂ……枢軸 １０ｃ……引っ張りばね（弾性体） １０ｄ……開閉操作用ワイヤー １０ｅ……端末把持具 １１………自動クランプ金具 １２………手動クランプ金具 １３………親綱支柱 １３ａ……親綱支柱の支軸 １３ｂ……ストッパー １４………吊りピース １５………ステイ ２０………親綱（安全綱） 1 ... Boom 2 ... Cross beam member that constitutes the boom 10 ... Unit scaffolding plate 10a ... Arc hook 10b ... Axis 10c ... Extension spring (elastic body) 10d. Wire 10e …… Terminal gripping tool 11 …… Automatic clamp metal fitting 12 ………… Manual clamp metal fitting 13 ………… Main rope support 13a …… Main rope support shaft 13b …… Stopper 14 ………… Suspension piece 15 …… … Stay 20 ………… Mainline (safety line)
Claims (3)
綱支柱とを有するタワークレーン組立・解体作業用足場
板であって、 前記脱着機構は、単位足場板の前端部寄り下面に取り付
けた自動クランプ金具と、後端部寄り下面に取り付けた
手動クランプ金具からなり、自動クランプ金具は、単位
足場板の後端部に設けた開閉操作用ワイヤーの端末把持
具によって開閉操作するように構成し、ブームを構成す
る横桟部材に前記前後クランプ金具を介して着脱自在に
クランプし、 前記親綱支柱は、単位足場板の前端部上面に下端部を枢
支させ、上端部を単位足場板の後端方向に前記枢支部を
支点として反転させ垂直に自立する構成としたことを特
徴とするタワークレーン組立・解体作業用足場板。1. A scaffolding plate for tower crane assembly / disassembly work, comprising a scaffolding plate attachment / detachment mechanism for a boom, and a main rope column, wherein the attachment / detachment mechanism is an automatic device attached to a lower surface of a unit scaffolding plate near a front end thereof. It consists of a clamp metal fitting and a manual clamp metal fitting attached to the lower surface near the rear end, and the automatic clamp metal fitting is configured to be opened and closed by the terminal gripping tool of the opening and closing operation wire provided at the rear end of the unit scaffolding plate. It is detachably clamped to the horizontal cross member that constitutes the boom through the front and rear clamp fittings, and the main rope column has the lower end pivotally supported on the upper surface of the front end portion of the unit scaffolding plate and the upper end portion behind the unit scaffolding plate. A scaffolding board for assembling and dismantling work of a tower crane, characterized in that the pivotal support portion is turned in the end direction and is vertically inverted to be self-supporting.
を構成する円弧状フックの中間部よりやや上部を単位足
場板側に枢支し、その円弧状フックの上端部と単位足場
板側との間には、ばね等からなる弾性体を介設するとと
もに、円弧状フックの上端部と単位足場板の後端部との
間に開閉操作用ワイヤーを連係し、この開閉操作用ワイ
ヤーの端末把持具を前記弾性体に抗して引けば円弧状フ
ックが開き、ブームの横桟部材に対するクランプを解除
するように構成したことを特徴とする請求項１記載のタ
ワークレーン組立・解体作業用足場板。2. The automatic clamp metal fitting pivotally supports an upper part of an arc-shaped hook constituting the clamp metal fitting toward a unit scaffolding plate side, and between the upper end part of the arcuate hook and the unit scaffolding plate side. An elastic body made of a spring or the like is interposed between the upper and lower ends of the arc-shaped hook and the rear end of the unit scaffolding plate, and the opening / closing operation wire is linked to the terminal grasping tool of the opening / closing operation wire. The scaffolding board for assembling and dismantling work according to claim 1, wherein the arcuate hook is opened by pulling against the elastic body to release the clamp on the crosspiece member of the boom.
スを設けたことを特徴とする請求項１記載のタワークレ
ーン組立・解体作業用足場板。3. The scaffold plate for assembly / disassembly of a tower crane according to claim 1, wherein a suspension piece is provided at a front end of the unit scaffold plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1995001849U JP3015762U (en) | 1995-03-14 | 1995-03-14 | Scaffolding board for tower crane assembly / disassembly work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1995001849U JP3015762U (en) | 1995-03-14 | 1995-03-14 | Scaffolding board for tower crane assembly / disassembly work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3015762U true JP3015762U (en) | 1995-09-12 |
Family
ID=43151311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1995001849U Expired - Lifetime JP3015762U (en) | 1995-03-14 | 1995-03-14 | Scaffolding board for tower crane assembly / disassembly work |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3015762U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020158268A (en) * | 2019-03-27 | 2020-10-01 | コベルコ建機株式会社 | Work machine support device and method of arranging wire rope of work machine |
| JP2020158269A (en) * | 2019-03-27 | 2020-10-01 | コベルコ建機株式会社 | Work machine support device and method of arranging wire rope of work machine |
-
1995
- 1995-03-14 JP JP1995001849U patent/JP3015762U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020158268A (en) * | 2019-03-27 | 2020-10-01 | コベルコ建機株式会社 | Work machine support device and method of arranging wire rope of work machine |
| JP2020158269A (en) * | 2019-03-27 | 2020-10-01 | コベルコ建機株式会社 | Work machine support device and method of arranging wire rope of work machine |
| JP7189511B2 (en) | 2019-03-27 | 2022-12-14 | コベルコ建機株式会社 | Work machine support device and work machine wire rope installation method |
| JP7189510B2 (en) | 2019-03-27 | 2022-12-14 | コベルコ建機株式会社 | Work machine support device and work machine wire rope installation method |
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