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JP7803490B2 - scaffold - Google Patents
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JP7803490B2 - scaffold - Google Patents

scaffold

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Publication number
JP7803490B2
JP7803490B2 JP2022122802A JP2022122802A JP7803490B2 JP 7803490 B2 JP7803490 B2 JP 7803490B2 JP 2022122802 A JP2022122802 A JP 2022122802A JP 2022122802 A JP2022122802 A JP 2022122802A JP 7803490 B2 JP7803490 B2 JP 7803490B2
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scaffolding
vibration
attached
tower
peripheral surface
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JP2024019981A (en
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洋一 橋本
憲昭 正田
安藤 峰之
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SAKURAIGIKEN CO., LTD.
JFE Engineering Corp
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SAKURAIGIKEN CO., LTD.
JFE Engineering Corp
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Priority to JP2022122802A priority Critical patent/JP7803490B2/en
Publication of JP2024019981A publication Critical patent/JP2024019981A/en
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Publication of JP7803490B2 publication Critical patent/JP7803490B2/en
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  • Movable Scaffolding (AREA)
  • Wind Motors (AREA)

Description

本発明は足場に関し、特に、筒状の外周面を有する直立したタワーを備えた風力発電設備に好適に適用可能な足場に関する。 The present invention relates to scaffolding, and in particular to scaffolding that is suitable for use with wind power generation facilities equipped with upright towers having cylindrical outer surfaces.

再生可能エネルギーの1つとして、風力に対する注目度が高くなってきている。 Wind power is gaining attention as a form of renewable energy.

風力発電に用いる風力発電設備のタワーは、鋼材を主に用いて構成されており、清掃や塗装を定期的に行ってメンテナンスを行う必要がある。また、風力発電設備の風車羽根(ブレード)についても、定期的に点検や落雷等による突発的な損傷に対する補修のメンテナンスを行う必要がある。これらのメンテナンスは風力発電設備のタワーの外側からアクセスする必要があるが、構造上の観点から、風力発電設備のタワーを筒状の塔で構成することが多くなってきている。 The towers of wind power generation equipment used for wind power generation are primarily constructed from steel, and require regular maintenance such as cleaning and painting. The wind turbine blades of wind power generation equipment also require regular inspections and repairs for sudden damage caused by lightning strikes and other events. This maintenance work requires access from the outside of the wind power generation equipment tower, but from a structural standpoint, wind power generation equipment towers are increasingly being constructed as cylindrical towers.

このような筒状のタワーは、外周面に手掛かりがないため、メンテナンス時には大型クレーンが必要となり、多大な労力を要することとなる。 Since such cylindrical towers have no handholds on their outer surfaces, maintenance requires a large crane, which requires a great deal of effort.

この問題に対応するべく、既設の風力発電設備の風車羽根(ブレード)及びその機能部品等が、経年劣化や落雷等によって傷んだ時の補修・交換作業を、大型クレーンを使わないで、極力、少ない工費と工期で行うための風力発電設備の風車羽根のメンテナンス工法が提案されている(例えば、特許文献1参照)。 To address this issue, a maintenance method for wind turbine blades in existing wind power generation facilities has been proposed, which allows for repair and replacement of the blades and other functional components damaged by aging or lightning strikes without the use of large cranes, and with minimal construction costs and time (see, for example, Patent Document 1).

特許文献1に記載されているメンテナンス工法を、図8を参照して簡単に説明する。 The maintenance method described in Patent Document 1 will be briefly explained with reference to Figure 8.

上部作業台72に乗り込んだ作業員が、駆動装置70(ラックレール52に沿って上下方向に移動することができる駆動装置)で上方に移動しながら、両端部に磁石50Aが取り付けられているブラケット50を筒状タワー60の外周面に上方向に順次取り付けるとともにラックレール52を上方に延ばし、風力発電設備100の筒状タワー60の頂端までラックレール52を順次継ぎ足していき、上部作業台72に積み込んだ吊り上げ用の滑車84を有する滑車付バンド82を、筒状タワー60の頂端に吊り上げ、巻き付け固定する。 A worker on the upper work platform 72 moves upward using the drive unit 70 (a drive unit that can move up and down along the rack rail 52) while sequentially attaching brackets 50, each end of which has a magnet 50A attached, to the outer periphery of the cylindrical tower 60 in an upward direction, and extending the rack rail 52 upward, gradually extending the rack rail 52 up to the top of the cylindrical tower 60 of the wind power generation facility 100. The pulley-equipped band 82, which has a lifting pulley 84 loaded on the upper work platform 72, is then lifted onto the top of the cylindrical tower 60 and wrapped around and secured.

筒状タワー60の頂端までラックレール52を架設したら、上部作業台72を一旦降ろし、上部作業台72と作業用足場104(風車羽根(ブレード)102の点検および補修等をするための足場)とを、駆動装置70を介して連結する。作業用足場104は、連結された基端から筒状タワー60に対して直角方向に張り出す形状をしており、作業用足場104の足場プレートの上部には安全柵が取り付けられている。 Once the rack rails 52 have been installed up to the top of the cylindrical tower 60, the upper work platform 72 is lowered and then connected to the work scaffolding 104 (scaffolding for inspecting and repairing the wind turbine blades 102) via the drive unit 70. The work scaffolding 104 extends perpendicularly from the connected base end to the cylindrical tower 60, and a safety fence is attached to the top of the scaffolding plate of the work scaffolding 104.

作業用足場104の先端の左右両端には吊りワイヤー106が取り付けられ、筒状タワー60の頂端に滑車付バンド82によって取り付けられた滑車84と地上に設置したウインチ86により作業用足場104を所定位置まで移動させることができる。なお、移動させるにあたり、上下移動のための駆動装置70と同期を取って移動するようにされているので、作業用足場104が傾くことなく移動することができるように構成されている。 Lifting wires 106 are attached to both the left and right ends of the tip of the work scaffolding 104, and the work scaffolding 104 can be moved to a predetermined position using a pulley 84 attached to the top of the cylindrical tower 60 by a pulley-equipped band 82 and a winch 86 installed on the ground. Furthermore, since the movement is synchronized with the drive unit 70 for vertical movement, the work scaffolding 104 can be moved without tilting.

しかしながら、特許文献1に記載の技術においては、風力、風向等の変動によって作業用足場104が水平方向に振れることに対しては、図8に示されるように、風力発電設備100の周囲の地上に配置した作業員200が支線ワイヤー108を引っ張ることによって対応を行っていた。 However, in the technology described in Patent Document 1, when the work scaffolding 104 sways horizontally due to fluctuations in wind force, wind direction, etc., workers 200 stationed on the ground around the wind power generation facility 100 respond by pulling the guy wires 108, as shown in Figure 8.

一方、風力発電設備100が海域にある場合には、作業員200が支線ワイヤー108を引っ張ることによって、作業用足場104の振れを止めることは困難である。 On the other hand, when the wind power generation facility 100 is located in an offshore area, it is difficult for the worker 200 to stop the swinging of the work scaffolding 104 by pulling on the guy wire 108.

WO2011/161740A1号公報WO2011/161740A1 publication

本発明は、かかる点に鑑みてなされたものであり、筒状の外周面を有する直立したタワーの該外周面に磁力を介して取付可能な足場の水平方向の振止めを、地上エリアの大小に関わらず行える足場を提供することを課題とする。 The present invention was developed in light of these issues, and aims to provide scaffolding that can be attached to the outer surface of an upright tower with a cylindrical outer surface via magnetic force, and that can provide horizontal vibration damping regardless of the size of the ground area.

本発明は前記課題を解決する発明であり、以下のような足場である。 The present invention aims to solve the above problems and provides the following scaffolding:

即ち、本発明に係る足場の第1の態様は、筒状の外周面を有する直立したタワーに取付可能な足場であって、前記タワーの前記外周面に磁力を介して取り付け可能な基端部を有する長尺な足場本体と、前記タワーの前記外周面に磁力を介して取り付け可能な一端部を有し、前記足場本体の両側にそれぞれ設けられる支持部材と、前記足場本体の長手方向に対して自身の長手方向が所定の角度を有するように、前記足場本体の前記基端部に一端部が取り付けられているとともに、他端部が前記支持部材に連結されていて、前記足場本体の両側にそれぞれ設けられた振止め部材と、前記足場本体の部位のうち、前記タワーの前記外周面から所定の距離以上離れた部位と、前記振止め部材の前記他端部との間に張られていて、前記足場本体の両側にそれぞれ設けられた張りワイヤーと、を備えることを特徴とする足場である。 In other words, a first aspect of the scaffolding of the present invention is a scaffolding that can be attached to an upright tower having a cylindrical outer peripheral surface, comprising: a long scaffolding main body having a base end that can be attached to the outer peripheral surface of the tower via magnetic force; support members that have one end that can be attached to the outer peripheral surface of the tower via magnetic force and are provided on both sides of the scaffolding main body; vibration-damping members that are provided on both sides of the scaffolding main body and have one end attached to the base end of the scaffolding main body and the other end connected to the support member so that their longitudinal direction forms a predetermined angle with the longitudinal direction of the scaffolding main body; and tension wires that are provided on both sides of the scaffolding main body and are stretched between a portion of the scaffolding main body that is a predetermined distance or more from the outer peripheral surface of the tower and the other end of the vibration-damping member.

ここで、筒状とは、円筒状の形状だけでなく、角筒状の形状も含むものとする。 Here, "tubular" includes not only cylindrical shapes but also rectangular cylindrical shapes.

また、前記足場本体の前記基端部は、その基端だけでなく、当該基端の近傍の部位も含むものとする。また、前記支持部材の前記一端部は、その一端だけでなく、当該一端の近傍の部位も含むものとする。また、前記振止め部材の前記一端部は、その一端だけでなく、当該一端の近傍の部位も含むものとし、前記振止め部材の前記他端部は、その他端だけでなく、当該他端の近傍の部位も含むものとする。本願の他の箇所の同様の記載も、同様に解釈するものとする。 Furthermore, the base end of the scaffolding body includes not only the base end but also the area near the base end. Furthermore, the one end of the support member includes not only that one end but also the area near that end. Furthermore, the one end of the vibration damper member includes not only that one end but also the area near that one end, and the other end of the vibration damper member includes not only the other end but also the area near that other end. Similar descriptions elsewhere in this application shall be interpreted in the same manner.

また、本願において、前記タワーの前記外周面に「磁力を介して取り付け可能」とは、取り付けられる対象物が前記タワーの前記外周面に直接接して磁力を介して取り付け可能な場合だけでなく、他の部材を介して、前記タワーの前記外周面に磁力を介して取り付け可能な場合も含む。 In addition, in this application, "attachable via magnetic force" to the outer peripheral surface of the tower does not only mean that the object to be attached is in direct contact with the outer peripheral surface of the tower and can be attached via magnetic force, but also means that the object can be attached via magnetic force to the outer peripheral surface of the tower via another member.

本発明に係る足場の第2の態様は、前記第1の態様において、前記振止め部材の前記一端部はヒンジ機構になっており、該ヒンジ機構によって前記振止め部材は水平状態から直立状態まで開閉可能である、ように構成されている態様である。 A second aspect of the scaffolding of the present invention is the first aspect, wherein one end of the anti-vibration member is configured as a hinge mechanism, and the anti-vibration member can be opened and closed from a horizontal position to an upright position by means of the hinge mechanism.

本発明に係る足場の第3の態様は、前記第1または前記第2の態様において、前記振止め部材は、作業時の足場として利用可能な長方形状の板状体である、ように構成されている態様である。 A third aspect of the scaffolding of the present invention is the first or second aspect, wherein the vibration-proof member is a rectangular plate-like body that can be used as a scaffolding during work.

本発明に係る足場の第4の態様は、前記第1~前記第3の態様のいずれかの態様において、前記支持部材は棒状の部材であり、その前記一端部に磁石を備えていて、該磁石の磁力を介して前記タワーの前記外周面に着脱自在である、ように構成されている態様である。 A fourth aspect of the scaffolding of the present invention is any one of the first to third aspects, in which the support member is a rod-shaped member equipped with a magnet at one end thereof, and is configured to be freely attached and detached to the outer circumferential surface of the tower via the magnetic force of the magnet.

本発明に係る足場の第5の態様は、前記第1~前記第4の態様のいずれかの態様において、前記足場本体は、前記タワーの前記外周面から所定の距離だけ離れた部位にヒンジ機構を有し、該ヒンジ機構よりも先端側の部位が該ヒンジ機構によって水平状態から直立状態まで開閉可能である、ように構成されている態様である。 A fifth aspect of the scaffolding of the present invention is any of the first to fourth aspects, in which the scaffolding body has a hinge mechanism at a location a predetermined distance away from the outer peripheral surface of the tower, and the location distal to the hinge mechanism can be opened and closed by the hinge mechanism from a horizontal position to an upright position.

本発明に係る足場の第6の態様は、前記第1~前記第5の態様のいずれかの態様において、前記タワーの前記外周面に上下方向に所定の間隔を空けて磁力を介して取り付け可能に構成された複数のブラケットと、上下方向に沿う方向に前記複数のブラケットに取り付けられたラックレールと、前記ラックレールに沿って移動可能な駆動装置と、を備え、前記足場本体の前記基端部は、前記駆動装置に取り付けられている、ように構成されている態様である。 A sixth aspect of the scaffolding of the present invention is any of the first to fifth aspects, and further comprises a plurality of brackets configured to be attached to the outer peripheral surface of the tower via magnetic force at predetermined intervals in the vertical direction, rack rails attached to the plurality of brackets in a direction along the vertical direction, and a drive unit capable of moving along the rack rails, and the base end of the scaffolding body is attached to the drive unit.

ここで、前記駆動装置には、駆動に直接的に関係する駆動機構部位だけでなく、該駆動機構部位に取り付けられていて、該駆動機構部位とともに移動して、前記駆動装置の一部であるとみなせる部材や部位も含まれる。 Here, the drive device includes not only the drive mechanism parts directly related to driving, but also members and parts that are attached to the drive mechanism parts, move together with the drive mechanism parts, and can be considered to be part of the drive device.

また、「前記駆動装置に取り付けられ」とは、取り付けられる対象物が前記駆動装置に直接接して取り付けられている場合だけでなく、他の部材を介して、前記駆動装置に取り付けられている場合も含む。 Furthermore, "attached to the drive unit" does not only include cases where the object to be attached is attached in direct contact with the drive unit, but also cases where it is attached to the drive unit via another member.

本発明によれば、筒状の外周面を有する直立したタワーの該外周面に磁力を介して取付可能な足場の水平方向の振止めを、地上エリアの大小に関わらず行える足場を提供することができる。 This invention provides scaffolding that can be attached to the outer surface of an upright tower with a cylindrical outer surface via magnetic force, and can provide horizontal vibration damping regardless of the size of the ground area.

本発明の実施形態に係る振止め機能付き足場10が風力発電設備100に適用された状態を示す斜視図FIG. 1 is a perspective view showing a state in which a scaffolding 10 with vibration prevention functions according to an embodiment of the present invention is applied to a wind power generation facility 100. 本発明の実施形態に係る振止め機能付き足場10を上方から見た平面図1 is a plan view of a scaffolding 10 with vibration prevention function according to an embodiment of the present invention, viewed from above; 本発明の実施形態に係る振止め機能付き足場10の足場本体12の基端部12Aおよびその近傍部位を上方から見た拡大平面図1 is an enlarged plan view of the base end 12A of the scaffolding body 12 of the scaffolding 10 with vibration prevention function according to an embodiment of the present invention and its surrounding area, viewed from above. 本発明の実施形態に係る振止め機能付き足場10の足場本体12の基端部12Aおよびその近傍部位を側方から見た拡大側面図1 is an enlarged side view of a base end portion 12A of a scaffolding body 12 of a scaffolding 10 with vibration prevention function according to an embodiment of the present invention and a portion thereof seen from the side. 本発明の実施形態に係る振止め機能付き足場10を側方から見た側面図A side view of the scaffolding 10 with vibration prevention function according to the embodiment of the present invention, seen from the side. 本発明の実施形態に係る振止め機能付き足場10の足場本体12の基端部12Aおよびその周辺部位を側方から見た拡大側面図1 is an enlarged side view of a base end portion 12A of a scaffolding body 12 of a scaffolding 10 with vibration prevention function according to an embodiment of the present invention, and its surrounding area, as viewed from the side. 振止め部材14の他端部14Bの上面における連結部14B2(張りワイヤー18との連結部)を模式的に示す拡大断面図(ピン14B2cと直交する面を切断面とする拡大断面図)FIG. 10 is an enlarged cross-sectional view schematically illustrating a connecting portion 14B2 (a connecting portion with the tension wire 18) on the upper surface of the other end portion 14B of the anti-vibration member 14 (an enlarged cross-sectional view cut along a plane perpendicular to the pin 14B2c). 従来技術(特許文献1に記載の技術)が風力発電設備100に適用された状態を示す斜視図FIG. 1 is a perspective view showing a state in which the conventional technology (the technology described in Patent Document 1) is applied to a wind power generation facility 100.

以下、図面を参照して、本発明に係る足場の実施形態を詳細に説明する。ここでは、筒状タワー(筒状の外周面を有する直立したタワー)が風力発電設備の一部であることを念頭に置いて、本発明に係る足場の実施形態を説明するが、本発明の適用対象が風力発電設備の筒状タワーに限定されるわけではなく、本発明は、磁石が固着可能な筒状タワーであれば適用可能である。なお、本発明に係る足場は振止め機能を有しており、本発明の実施形態に係る足場も振止め機能を有しているので、本発明の実施形態の説明においては、本発明の実施形態に係る足場を振止め機能付き足場10と記して説明を行う。 Embodiments of scaffolding according to the present invention will be described in detail below with reference to the drawings. Here, embodiments of scaffolding according to the present invention will be described with the understanding that a cylindrical tower (an upright tower with a cylindrical outer surface) is part of a wind power generation facility. However, the application of the present invention is not limited to cylindrical towers of wind power generation facilities; the present invention can be applied to any cylindrical tower to which a magnet can be attached. Note that the scaffolding according to the present invention has an anti-vibration function, and since the scaffolding according to the embodiments of the present invention also has this function, in describing the embodiments of the present invention, the scaffolding according to the embodiments of the present invention will be referred to as scaffolding 10 with anti-vibration function.

図1は、本発明の実施形態に係る振止め機能付き足場10が風力発電設備100に適用された状態を示す斜視図であり、図2は、本発明の実施形態に係る振止め機能付き足場10を上方から見た平面図であり、図3は、本発明の実施形態に係る振止め機能付き足場10の足場本体12の基端部12Aおよびその近傍部位を上方から見た拡大平面図であり、図4は、本発明の実施形態に係る振止め機能付き足場10の足場本体12の基端部12Aおよびその近傍部位を側方から見た拡大側面図であり、図5は、本発明の実施形態に係る振止め機能付き足場10を側方から見た側面図であり、図6は、本発明の実施形態に係る振止め機能付き足場10の足場本体12の基端部12Aおよびその周辺部位を側方から見た拡大側面図であり、図7は、振止め部材14の他端部14Bの上面における連結部14B2(張りワイヤー18との連結部)を模式的に示す拡大断面図(ピン14B2cと直交する面を切断面とする拡大断面図)であり、図8は、従来技術(特許文献1に記載の技術)が風力発電設備100に適用された状態を示す斜視図である。なお、図2においては、振止め部材14の一端部のヒンジ機構14Aおよび駆動装置70の記載は省略しており、図3においては、筒状タワー60の記載は省略している。また、図6の拡大側面図において、ラックレール52と補助レール50Bとは側方から見て重なった位置にあり、同じ位置に描かれている。 1 is a perspective view showing a scaffolding 10 with vibration suppression functions according to an embodiment of the present invention applied to a wind power generation facility 100; FIG. 2 is a plan view of the scaffolding 10 with vibration suppression functions according to an embodiment of the present invention viewed from above; FIG. 3 is an enlarged plan view of the base end 12A of the scaffolding body 12 of the scaffolding 10 with vibration suppression functions according to an embodiment of the present invention and the surrounding area viewed from above; FIG. 4 is an enlarged side view of the base end 12A of the scaffolding body 12 of the scaffolding 10 with vibration suppression functions according to an embodiment of the present invention and the surrounding area viewed from the side; and FIG. 5 is an enlarged side view of the scaffolding 10 with vibration suppression functions according to an embodiment of the present invention. FIG. 6 is a side view of a vibration-proof scaffolding 10 according to an embodiment of the present invention, showing the base end 12A of the scaffolding body 12 and its surrounding area. FIG. 7 is an enlarged cross-sectional view (taken along a plane perpendicular to the pin 14B2c) schematically illustrating the connecting portion 14B2 (the connecting portion with the tension wire 18) on the upper surface of the other end 14B of the vibration-proof member 14. FIG. 8 is a perspective view showing a state in which the prior art (the technology described in Patent Document 1) is applied to a wind power generation facility 100. Note that FIG. 2 omits the hinge mechanism 14A and drive unit 70 at one end of the vibration-proof member 14, and FIG. 3 omits the cylindrical tower 60. In the enlarged side view of FIG. 6, the rack rail 52 and auxiliary rail 50B overlap when viewed from the side and are depicted in the same position.

本発明の実施形態に係る振止め機能付き足場10は、筒状タワー60の外周面に磁石50Aの磁力を介して取り付けられた足場であり、図1~図6に示すように、足場本体12と、振止め部材14と、支持部材16と、張りワイヤー18と、ブラケット50と、磁石50Aと、ラックレール52と、駆動装置70と、を有してなる。筒状タワー60は、外周面に磁石が固着可能な材質で構成されている。 The scaffolding with vibration suppression function 10 according to an embodiment of the present invention is attached to the outer periphery of a cylindrical tower 60 via the magnetic force of magnets 50A, and as shown in Figures 1 to 6, comprises a scaffolding main body 12, vibration suppression members 14, support members 16, tension wires 18, brackets 50, magnets 50A, rack rails 52, and a drive unit 70. The cylindrical tower 60 is made of a material to which magnets can be attached on the outer periphery.

本発明の実施形態に係る振止め機能付き足場10において、ブラケット50は両端部に磁石50Aを備えており、図1に示すように、多数のブラケット50が、筒状タワー60の外表面に上下方向に所定の間隔を空けて、磁石50Aの磁力を介して取り付けられており、ブラケット50の中央部には、ラックレール52が筒状タワー60の外表面に沿って上下方向に延びるように取り付けられている。 In the anti-vibration scaffolding 10 according to an embodiment of the present invention, the brackets 50 are equipped with magnets 50A at both ends, and as shown in Figure 1, a large number of brackets 50 are attached to the outer surface of the cylindrical tower 60 at predetermined intervals in the vertical direction via the magnetic force of the magnets 50A, and a rack rail 52 is attached to the center of the brackets 50 so as to extend in the vertical direction along the outer surface of the cylindrical tower 60.

具体的には、上部作業台72に乗り込んだ作業員が、駆動装置70(ラックレール52に沿って上下方向に移動することができる駆動装置)で上方に移動しながら、両端部に磁石50Aが取り付けられているブラケット50を筒状タワー60の外周面に上方向に順次取り付けるとともに、ラックレール52をブラケット50の中央部に取り付けて上方に延ばしていく。そして、ラックレール52は、風力発電設備100の筒状タワー60の頂端まで順次継ぎ足されて取り付けられている。 Specifically, a worker on the upper work platform 72 moves upward using the drive unit 70 (a drive unit that can move up and down along the rack rail 52) while sequentially attaching brackets 50, each with magnets 50A attached to both ends, to the outer periphery of the cylindrical tower 60 in an upward direction, and attaching the rack rail 52 to the center of the bracket 50 and extending it upward. The rack rails 52 are then sequentially extended and attached all the way to the top of the cylindrical tower 60 of the wind power generation facility 100.

駆動装置70がピニオン52A(図3参照)を回転させることで、駆動装置70はラックレール52から上下方向の力を受け、連結鋼材70A(図3および図6参照)を介してその力が足場本体12の基端部12Aに伝達されて、足場本体12全体が上下方向に移動できるように構成されている。また、図4に示すように、足場本体12の基端部12Aの基端(筒状タワー60側の基端)には垂直連結鋼材12A1が取り付けられており、図3および図4に示すように、垂直連結鋼材12A1の上端部および下端部には、補助輪連結鋼材50C1および補助輪組立鋼材50C2を介して補助輪50Cが取り付けられており、ブラケット50には補助レール50Bが両端部にそれぞれ取り付けられている。補助輪50Cは補助レール50Bを挟み込むように対向して複数設けられていて、補助レール50Bに沿って移動できるように構成されており、足場本体12全体が上下方向にスムーズに移動できるように構成されている。 When the drive unit 70 rotates the pinion 52A (see Figure 3), the drive unit 70 receives a vertical force from the rack rail 52. This force is transmitted to the base end 12A of the scaffolding main body 12 via the connecting steel member 70A (see Figures 3 and 6), allowing the entire scaffolding main body 12 to move vertically. As shown in Figure 4, a vertical connecting steel member 12A1 is attached to the base end (the base end facing the cylindrical tower 60) of the base end 12A of the scaffolding main body 12. As shown in Figures 3 and 4, auxiliary wheels 50C are attached to the upper and lower ends of the vertical connecting steel member 12A1 via auxiliary wheel connecting steel members 50C1 and auxiliary wheel assembly steel members 50C2. Auxiliary rails 50B are attached to both ends of the bracket 50. Multiple auxiliary wheels 50C are provided facing each other, sandwiching the auxiliary rails 50B, allowing them to move along the auxiliary rails 50B, allowing the entire scaffolding main body 12 to move smoothly vertically.

足場本体12は、図2に示すように、基端部12Aと、長尺部12Bと、ヒンジ機構12Cと、を有してなり、基端部12Aと長尺部12Bとの間にヒンジ機構12Cが設けられている。足場本体12は、磁石50Aが固着可能な筒状タワー60の外周面に、長尺な全体形状が突出するように、基端部12Aが磁石50Aの磁力を介して取り付けられている。ヒンジ機構12Cにより、長尺部12B(足場本体12の部位のうち、ヒンジ機構12Cよりも先端側の部位)は基端部12Aに対して回動することができるように構成されており、図5に示すように、長尺部12Bは、水平状態から直立状態にまで開閉することができるように構成されている。 As shown in Figure 2, the scaffolding body 12 comprises a base end 12A, a long portion 12B, and a hinge mechanism 12C, with the hinge mechanism 12C provided between the base end 12A and the long portion 12B. The base end 12A of the scaffolding body 12 is attached to the outer peripheral surface of a cylindrical tower 60 to which the magnet 50A can be fixed via the magnetic force of the magnet 50A, so that the entire long shape of the scaffolding body 12 protrudes. The hinge mechanism 12C allows the long portion 12B (the portion of the scaffolding body 12 that is distal to the hinge mechanism 12C) to rotate relative to the base end 12A. As shown in Figure 5, the long portion 12B can be opened and closed from a horizontal position to an upright position.

足場本体12の基端部12Aおよび長尺部12Bは、どちらも作業用の足場(風車羽根(ブレード)102の点検および補修等をするための足場)として用いることができ、転落防止用の手摺が設けられている。作業用の足場として用いるときは長尺部12Bを水平状態に開いた状態(図1および図2に示す状態)にする。駆動装置70により、足場本体12全体を上下方向に移動させるときは、長尺部12Bを直立状態に閉じた状態にして移動させる。直立状態に閉じた状態にして移動させることで、上下移動時の安定性を向上させることができる。図1に示すように、足場本体12の先端部には、滑車付バンド82によって筒状タワー60の頂端に取り付けられた滑車84を経由する先端引上げワイヤー80が連結されており、足場本体12の長尺部12Bを、水平状態から直立状態に変更する際には、図5に示すように、先端引上げワイヤー80をウインチ86(図1参照)で巻き上げ、直立状態から水平状態に変更する際には、先端引上げワイヤー80をウインチ86で巻き下げる。 Both the base end 12A and the long section 12B of the scaffolding body 12 can be used as work scaffolding (for inspecting and repairing wind turbine blades 102, etc.), and are equipped with handrails to prevent falls. When used as work scaffolding, the long section 12B is opened horizontally (as shown in Figures 1 and 2). When the entire scaffolding body 12 is moved up and down using the drive unit 70, the long section 12B is closed and moved upright. Moving the scaffolding body 12 in the closed and upright position improves stability during up and down movement. As shown in Figure 1, a tip-pulling wire 80 is connected to the tip of the scaffolding body 12 via a pulley 84 attached to the top end of the cylindrical tower 60 by a pulley-equipped band 82. When changing the long section 12B of the scaffolding body 12 from a horizontal position to an upright position, as shown in Figure 5, the tip-pulling wire 80 is wound up by a winch 86 (see Figure 1), and when changing from an upright position to a horizontal position, the tip-pulling wire 80 is wound down by the winch 86.

振止め部材14は、足場本体12の長尺部12Bを水平状態にしたときの風や地震による水平方向の振れを止める役割を担う部材であり、具体的には、張りワイヤー18が足場本体12(長尺部12Bを水平状態にしたときの足場本体12)となす角度を大きくする役割を有する。図2に示すように、振止め部材14は、足場本体12の両側にそれぞれ設けられている。また、図3に示すように、一端部がヒンジ機構14Aを介して基端部12Aの両側にそれぞれ連結していて、水平状態から直立状態にまで開閉することができるように構成されている。また、振止め部材14は、細長い長方形状の板状体であり、水平状態において作業時の足場として利用可能に構成されている。 The anti-vibration members 14 are components that prevent horizontal vibrations caused by wind or earthquakes when the long section 12B of the scaffolding main body 12 is in a horizontal position. Specifically, they serve to increase the angle that the tension wires 18 form with the scaffolding main body 12 (the scaffolding main body 12 when the long section 12B is in a horizontal position). As shown in Figure 2, anti-vibration members 14 are provided on both sides of the scaffolding main body 12. As shown in Figure 3, one end is connected to both sides of the base end 12A via a hinge mechanism 14A, allowing it to be opened and closed from a horizontal position to an upright position. The anti-vibration members 14 are elongated rectangular plate-like bodies that can be used as scaffolding during work when in a horizontal position.

振止め部材14は、水平状態の足場本体12の水平方向の振れを止める役割を担うときは、図2および図3に示すように水平状態に開いた状態にし、かつ、他端部14Bの上面の連結部14B1に支持部材16を連結し、さらに、振止め部材14の他端部14Bの上面の連結部14B2と足場本体12の全長の中央部付近の連結部位12Dとを張りワイヤー18で連結する。図2および図3に示すように、振止め部材14は、水平状態に開いた状態において、足場本体12の長手方向に対して、自身の長手方向が所定の角度を有するように、足場本体12の基端部12Aに一端部がヒンジ機構14Aを介して取り付けられている。振止め部材14は、水平状態に開いた状態において、足場本体12の長手方向に対して、自身の長手方向がなす角度が小さくなりすぎると(足場本体12の長手方向と振止め部材14の長手方向とが平行に近くなると)、長尺部12Bが水平状態のときの足場本体12(以下、水平状態の足場本体12と記載することがある。)と張りワイヤー18とがなす角度が小さくなり、水平状態の足場本体12の水平方向の振れを止める効果が小さくなってしまうので、水平状態の足場本体12の長手方向と水平状態の振止め部材14の長手方向とがなす角度を、所定の角度以上にすることが好ましく、具体的には例えば45°以上にすることが好ましい。 When the anti-vibration member 14 is tasked with preventing horizontal vibration of the scaffolding body 12 in a horizontal position, it is opened horizontally as shown in Figures 2 and 3, and a support member 16 is connected to the connecting portion 14B1 on the top surface of the other end 14B. Furthermore, the connecting portion 14B2 on the top surface of the other end 14B of the anti-vibration member 14 is connected to the connecting portion 12D near the center of the entire length of the scaffolding body 12 with a tension wire 18. As shown in Figures 2 and 3, one end of the anti-vibration member 14 is attached to the base end 12A of the scaffolding body 12 via a hinge mechanism 14A so that its longitudinal direction forms a predetermined angle with respect to the longitudinal direction of the scaffolding body 12 when it is opened horizontally. When the anti-vibration member 14 is opened horizontally, if the angle between its own longitudinal direction and the longitudinal direction of the scaffolding main body 12 becomes too small (if the longitudinal directions of the scaffolding main body 12 and the anti-vibration member 14 become nearly parallel), the angle between the scaffolding main body 12 when the long section 12B is in the horizontal position (hereinafter sometimes referred to as the scaffolding main body 12 in the horizontal position) and the tension wire 18 will become small, and the effect of preventing horizontal vibration of the scaffolding main body 12 in the horizontal position will be reduced. Therefore, it is preferable that the angle between the longitudinal direction of the scaffolding main body 12 in the horizontal position and the longitudinal direction of the anti-vibration member 14 in the horizontal position be equal to or greater than a specified angle, specifically, for example, 45° or greater.

支持部材16は棒状の部材であり、図2に示すように、足場本体12の両側にそれぞれ設けられており、また、それぞれ一端部に磁石16Aを備えていて、該磁石16Aの磁力を介して筒状タワー60の外周面に着脱自在に前記一端部が固着されており、支持部材16は、筒状タワー60の外周面に、長尺な全体形状が突出するように、一端部が磁石16Aの磁力を介して取り付けられている。支持部材16の他端部は振止め部材14の他端部14Bの上面に設けられた連結部14B1に連結している。振止め部材14の連結部14B1としては、棒状の支持部材16を把持できるような機構を用いることができ、具体的には例えば筒状タワー60の径中心に向かってセットでき、かつ、棒状の支持部材16の把持位置を変更することができるセンターホール型のクランプを用いることができる。 The support members 16 are rod-shaped members, and as shown in Figure 2, are provided on both sides of the scaffolding body 12. Each support member is equipped with a magnet 16A at one end, and is detachably attached to the outer periphery of the cylindrical tower 60 via the magnetic force of the magnet 16A. The support members 16 are attached to the outer periphery of the cylindrical tower 60 via the magnetic force of the magnet 16A so that their elongated overall shape protrudes. The other end of the support member 16 is connected to a connecting part 14B1 provided on the upper surface of the other end 14B of the anti-vibration member 14. The connecting part 14B1 of the anti-vibration member 14 can be a mechanism capable of gripping the rod-shaped support member 16. Specifically, for example, a center-hole clamp can be used, which can be set toward the radial center of the cylindrical tower 60 and allows the gripping position of the rod-shaped support member 16 to be changed.

張りワイヤー18は、振止め部材14の他端部14Bの連結部14B2と足場本体12の全長の中央部付近の連結部位12D(筒状タワー60の外周面から所定の距離以上離れた部位)との間に張られたワイヤー部材であり、図2に示すように、足場本体12の両側にそれぞれ配置されていて、合計2本配置されており、水平状態の足場本体12に生じた水平方向の振れによる力を張力として振止め部材14の他端部14Bに伝達する。張りワイヤー18と水平状態の足場本体12の長手方向とのなす角度が小さくなると、水平状態の足場本体12に対する水平方向の振止め効果が小さくなるので、張りワイヤー18と水平状態の足場本体12の長手方向とのなす角度は、所定の角度以上にすることが好ましく、具体的には例えば20°以上にすることが好ましい。また、連結部位12Dの位置が筒状タワー60の外周面から近すぎると、水平状態の足場本体12に対する水平方向の振止め効果が小さくなるので、連結部位12Dは、筒状タワー60の外周面から所定の距離以上離れた位置にするが、張りワイヤー18と水平状態の足場本体12の長手方向とのなす角度が小さくなりすぎないようにする観点、メンテナンスの作業範囲やメンテナンスの効率性の観点から、連結部位12Dは、足場本体12の全長の中央部付近の位置とすることが好ましい。 The tension wire 18 is a wire member stretched between the connecting portion 14B2 of the other end 14B of the anti-vibration member 14 and the connecting portion 12D (a portion at least a predetermined distance from the outer surface of the cylindrical tower 60) near the center of the entire length of the scaffolding body 12. As shown in Figure 2, two tension wires are placed, one on each side of the scaffolding body 12, and transmit the force caused by horizontal vibrations of the scaffolding body 12 when it is horizontal as tension to the other end 14B of the anti-vibration member 14. As the angle between the tension wire 18 and the longitudinal direction of the horizontal scaffolding body 12 becomes smaller, the horizontal vibration-proofing effect on the horizontal scaffolding body 12 decreases. Therefore, it is preferable that the angle between the tension wire 18 and the longitudinal direction of the horizontal scaffolding body 12 be greater than a predetermined angle, specifically, greater than 20°, for example. Furthermore, if the position of the connecting portion 12D is too close to the outer peripheral surface of the cylindrical tower 60, the horizontal vibration-proofing effect on the horizontal scaffolding body 12 will be reduced, so the connecting portion 12D should be located at a predetermined distance or more from the outer peripheral surface of the cylindrical tower 60. However, from the perspective of preventing the angle between the tension wire 18 and the longitudinal direction of the horizontal scaffolding body 12 from becoming too small, and from the perspective of maintenance work range and maintenance efficiency, it is preferable to position the connecting portion 12D near the center of the overall length of the scaffolding body 12.

振止め部材14の連結部14B2は、図7に示すように、2枚の対向鋼材14B2aと、組立鋼材14B2bと、ピン14B2cと、連結鋼材14b2dと、ねじ付き鋼棒14B2eと、ナット14B2fと、を有して構成されている(図7は断面図(ピン14B2cと直交する面を切断面とする断面図)であるため、対向鋼材14B2aは1枚しか描かれていない。)。2枚の対向鋼材14B2aは、所定の間隔を空けて組立鋼材14B2bに溶接されて固定されている。2枚の対向鋼材14B2aには対応する位置にそれぞれ貫通孔が設けられており、それらの貫通孔をピン14B2cが挿通している。張りワイヤー18は、留め具18Aで先端部がリング状に留められており、そのリング状の接続部をピン14B2cが挿通している。組立鋼材14B2bの反対側の面(対向鋼材14B2aが溶接されている側とは反対側の面)にはねじ付き鋼棒14B2eが溶接されている。連結鋼材14B2dには、ねじ付き鋼棒14B2eが挿通する貫通孔が設けられており、連結鋼材14B2dは、振止め部材14の他端部14Bの上面に取り付けられている。連結鋼材14B2dの貫通孔を挿通したねじ付き鋼棒14B2eの先端部にはナット14B2fが取り付けられており、ナット14B2fを回転させることで、組立鋼材14B2bと連結鋼材14B2dとの間の距離xを調整できるようになっており、距離xを調整することで、張りワイヤー18の張力を調整できるように構成されている。なお、図7では、張りワイヤー18の先端の接続部は、留め具18Aでリング状に留められた形状に描いているが、張りワイヤー18に加わる張力に応じて、シンブルを用いる等、張りワイヤー18に加わる張力等の条件に応じて適切に張りワイヤー18の接続部を設計する。また、張りワイヤー18の材質や径等も、加わる張力等の条件に応じて適切なものにする。 As shown in Figure 7, the connecting portion 14B2 of the anti-vibration member 14 is composed of two opposing steel members 14B2a, an assembly steel member 14B2b, a pin 14B2c, a connecting steel member 14b2d, a threaded steel rod 14B2e, and a nut 14B2f. (Since Figure 7 is a cross-sectional view (a cross-sectional view cut perpendicular to the pin 14B2c), only one opposing steel member 14B2a is shown.) The two opposing steel members 14B2a are fixed to the assembly steel member 14B2b by welding with a predetermined gap between them. The two opposing steel members 14B2a each have through holes at corresponding positions, through which the pin 14B2c passes. The tension wire 18 has its tip fastened in a ring shape by a fastener 18A, and the pin 14B2c passes through the ring-shaped connection. A threaded steel rod 14B2e is welded to the opposite surface of the assembly steel material 14B2b (the surface opposite to the side to which the counter steel material 14B2a is welded). A through hole for the threaded steel rod 14B2e to pass through is provided in the connecting steel material 14B2d, and the connecting steel material 14B2d is attached to the upper surface of the other end 14B of the vibration prevention member 14. A nut 14B2f is attached to the tip of the threaded steel rod 14B2e that has passed through the through hole in the connecting steel material 14B2d, and by rotating the nut 14B2f, the distance x between the assembly steel material 14B2b and the connecting steel material 14B2d can be adjusted, and by adjusting the distance x, the tension of the tensioning wire 18 can be adjusted. In Figure 7, the connection portion at the tip of the tension wire 18 is shown as being fastened in a ring shape with fastener 18A, but the connection portion of the tension wire 18 can be designed appropriately depending on the tension applied to the tension wire 18, such as by using a thimble, depending on the tension applied to the tension wire 18. The material and diameter of the tension wire 18 should also be appropriate depending on the tension applied and other conditions.

また、張りワイヤー18の連結部位12D側の先端部は、図7に示すリング状の態様と同様の態様(留め具18Aで先端部がリング状に留められた態様)であり、そのリング状の接続部を連結部位12Dのピン(図示せず)が挿通していて、連結部位12Dにおける張りワイヤー18の連結がなされている。 The tip of the tension wire 18 on the connection site 12D side is similar to the ring-shaped configuration shown in Figure 7 (the tip is fastened in a ring shape with fastener 18A), and a pin (not shown) of connection site 12D is inserted through this ring-shaped connection, thereby connecting the tension wire 18 at connection site 12D.

本発明の実施形態に係る振止め機能付き足場10は、以上説明したように構成されているので、水平状態の足場本体12に生じた水平方向の振れによる力は、2つのルートで筒状タワー60に伝達される。1つ目のルートでは、
(水平状態の足場本体12) → (張りワイヤー18) → (振止め部材14) → (基端部12A) → (垂直連結鋼材12A1および連結鋼材70A) → (ブラケット50) → (筒状タワー60)
の順に水平方向の振れによる力が伝達され、また、2つ目のルートでは、
(水平状態の足場本体12) → (張りワイヤー18) → (振止め部材14) → (支持部材16) → (筒状タワー60)
の順に水平方向の振れによる力が伝達され、水平状態の足場本体12の水平方向の振れが低減する。
Since the scaffolding 10 with vibration suppression function according to the embodiment of the present invention is configured as described above, the force caused by horizontal vibrations occurring in the scaffolding main body 12 in a horizontal state is transmitted to the cylindrical tower 60 via two routes.
(Scaffolding body 12 in a horizontal state) → (tension wire 18) → (vibration prevention member 14) → (base end portion 12A) → (vertical connecting steel member 12A1 and connecting steel member 70A) → (bracket 50) → (cylindrical tower 60)
The force caused by horizontal vibration is transmitted in this order, and in the second route,
(Scaffolding body 12 in a horizontal state) → (tension wire 18) → (vibration prevention member 14) → (support member 16) → (cylindrical tower 60)
The force due to the horizontal vibration is transmitted in this order, thereby reducing the horizontal vibration of the scaffolding main body 12 in a horizontal state.

前述したように、従来技術(特許文献1に記載の技術)においては、図8に示されるように、風力、風向等の変動によって作業用足場104が水平方向に振れることに対して、風力発電設備100の周囲の地上に配置した作業員200が支線ワイヤー108を引っ張ることによって対応を行っていたが、本発明の実施形態に係る振止め機能付き足場10は、水平状態の足場本体12に生じた水平方向の振れによる力を、前記した2つのルートで、人手を介さずに、筒状タワー60に伝達することができ、人手を介さずに、水平状態の足場本体12に生じた水平方向の振れを低減させることができ、地上エリアの大小に関わらず、水平状態の足場本体12に生じた水平方向の振れを低減させることができる。 As mentioned above, in the prior art (the technology described in Patent Document 1), as shown in Figure 8, horizontal swing of the work scaffolding 104 due to fluctuations in wind force, wind direction, etc. was addressed by workers 200 stationed on the ground around the wind power generation facility 100 pulling on the guy wires 108. However, the scaffolding 10 with vibration suppression function according to an embodiment of the present invention can transmit the force caused by horizontal swing of the horizontal scaffolding main body 12 to the cylindrical tower 60 via the two routes described above without human intervention, thereby reducing horizontal swing of the horizontal scaffolding main body 12 without human intervention. This makes it possible to reduce horizontal swing of the horizontal scaffolding main body 12 regardless of the size of the ground area.

また、前述したように、振止め部材14は、一端部がヒンジ機構14Aを介して基端部12Aに連結しており、水平状態から直立状態にまで開閉することができるように構成されており、水平状態の足場本体12に生じた水平方向の振れを低減させる際には水平状態にするが、直立状態にすることもできる。駆動装置70により、足場本体12全体を上下方向に移動させるときは、足場本体12の長尺部12Bを直立状態に閉じた状態にするだけでなく、振止め部材14も直立状態に閉じた状態にすることにより、移動時の安定性を向上させることができる。 As mentioned above, one end of the anti-vibration member 14 is connected to the base end 12A via the hinge mechanism 14A and is configured to be able to open and close from a horizontal position to an upright position. It is set to the horizontal position when reducing horizontal vibrations that occur in the horizontal scaffolding body 12, but it can also be set to an upright position. When the entire scaffolding body 12 is moved up and down using the drive device 70, not only is the long portion 12B of the scaffolding body 12 closed to an upright position, but the anti-vibration member 14 is also closed to an upright position, thereby improving stability during movement.

10…振止め機能付き足場
12…足場本体
12A…基端部
12A1…垂直連結鋼材
12B…長尺部
12C…ヒンジ機構
12D…連結部位
14…振止め部材
14A…ヒンジ機構
14B…他端部
14B1、14B2…連結部
14B2a…対向鋼材
14B2b…組立鋼材
14B2c…ピン
14B2d…連結鋼材
14B2e…ねじ付き鋼棒
14B2f…ナット
16…支持部材
16A…磁石
18…張りワイヤー
18A…留め具
50…ブラケット
50A…磁石
50B…補助レール
50C…補助輪
50C1…補助輪連結鋼材
50C2…補助輪組立鋼材
52…ラックレール
52A…ピニオン
60…筒状タワー
70…駆動装置
70A…連結鋼材
72…上部作業台
80…先端引上げワイヤー
82…滑車付バンド
84…滑車
86…ウインチ
100…風力発電設備
102…風車羽根
104…作業用足場
106…吊りワイヤー
108…支線ワイヤー
200…作業員
x…距離
DESCRIPTION OF SYMBOLS 10...Scaffolding with vibration prevention function 12...Scaffolding body 12A...Base end 12A1...Vertical connecting steel member 12B...Long section 12C...Hinge mechanism 12D...Connection portion 14...Vibration prevention member 14A...Hinge mechanism 14B...Other end 14B1, 14B2...Connection portion 14B2a...Opposite steel member 14B2b...Assembly steel member 14B2c...Pin 14B2d...Connecting steel member 14B2e...Threaded steel rod 14B2f...Nut 16...Support member 16A...Magnet 18...Tensioning wire 18A...Fastener 50...Bracket 50A...Magnet 50B...Auxiliary rail 50C...Auxiliary wheel 50C1...Auxiliary wheel connecting steel member 50C2...Auxiliary wheel assembly steel member 52...Rack rail 52A...Pinion 60...Cylindrical tower 70...Driver 70A...Connecting steel material 72...Upper work platform 80...Tip lifting wire 82...Band with pulley 84...Pulley 86...Winch 100...Wind power generation equipment 102...Wind turbine blade 104...Work scaffolding 106...Lifting wire 108...Guy wire 200...Worker x...Distance

Claims (6)

筒状の外周面を有する直立したタワーに取付可能な足場であって、
前記タワーの前記外周面に磁力を介して取り付け可能な基端部を有する長尺な足場本体と、
前記タワーの前記外周面に磁力を介して取り付け可能な一端部を有し、前記足場本体の両側にそれぞれ設けられる支持部材と、
前記足場本体の長手方向に対して自身の長手方向が所定の角度を有するように、前記足場本体の前記基端部に一端部が取り付けられているとともに、他端部が前記支持部材に連結されていて、前記足場本体の両側にそれぞれ設けられた振止め部材と、
前記足場本体の部位のうち、前記タワーの前記外周面から所定の距離以上離れた部位と、前記振止め部材の前記他端部との間に張られていて、前記足場本体の両側にそれぞれ設けられた張りワイヤーと、
を備えることを特徴とする足場。
A scaffold attachable to an upright tower having a cylindrical outer periphery,
A long scaffolding body having a base end that can be attached to the outer peripheral surface of the tower via magnetic force;
Support members each having one end that can be attached to the outer peripheral surface of the tower via magnetic force and provided on both sides of the scaffolding body;
a vibration-proof member provided on each side of the scaffolding body, the vibration-proof member having one end attached to the base end of the scaffolding body and the other end connected to the support member so that the longitudinal direction of the vibration-proof member forms a predetermined angle with respect to the longitudinal direction of the scaffolding body;
tension wires that are stretched between a portion of the scaffolding body that is a predetermined distance or more away from the outer peripheral surface of the tower and the other end of the vibration prevention member and are provided on both sides of the scaffolding body;
A scaffolding comprising:
前記振止め部材の前記一端部はヒンジ機構になっており、該ヒンジ機構によって前記振止め部材は水平状態から直立状態まで開閉可能であることを特徴とする請求項1に記載の足場。 Scaffolding as described in claim 1, characterized in that one end of the anti-vibration member has a hinge mechanism, which allows the anti-vibration member to be opened and closed from a horizontal position to an upright position. 前記振止め部材は、作業時の足場として利用可能な長方形状の板状体であることを特徴とする請求項1に記載の足場。 The scaffolding described in claim 1, characterized in that the vibration-proof member is a rectangular plate-like body that can be used as a scaffolding during work. 前記支持部材は棒状の部材であり、その前記一端部に磁石を備えていて、該磁石の磁力を介して前記タワーの前記外周面に着脱自在であることを特徴とする請求項1に記載の足場。 The scaffolding described in claim 1, characterized in that the support member is a rod-shaped member equipped with a magnet at one end thereof, and can be attached and detached to the outer peripheral surface of the tower via the magnetic force of the magnet. 前記足場本体は、前記タワーの前記外周面から所定の距離だけ離れた部位にヒンジ機構を有し、該ヒンジ機構よりも先端側の部位が該ヒンジ機構によって水平状態から直立状態まで開閉可能であることを特徴とする請求項1に記載の足場。 The scaffolding described in claim 1, characterized in that the scaffolding body has a hinge mechanism at a location a predetermined distance away from the outer peripheral surface of the tower, and the portion distal to the hinge mechanism can be opened and closed from a horizontal position to an upright position by the hinge mechanism. 前記タワーの前記外周面に上下方向に所定の間隔を空けて磁力を介して取り付け可能に構成された複数のブラケットと、
上下方向に沿う方向に前記複数のブラケットに取り付けられたラックレールと、
前記ラックレールに沿って移動可能な駆動装置と、
を備え、
前記足場本体の前記基端部は、前記駆動装置に取り付けられていることを特徴とする請求項1~5のいずれかに記載の足場。
a plurality of brackets configured to be attached to the outer peripheral surface of the tower at predetermined intervals in the vertical direction via magnetic force;
a rack rail attached to the plurality of brackets in a direction along the vertical direction;
a drive device movable along the rack rail;
Equipped with
The scaffolding according to any one of claims 1 to 5, characterized in that the base end of the scaffolding body is attached to the driving device.
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EP1516846A2 (en) 2003-09-19 2005-03-23 PERI, S.A. Sociedad Unipersonal Lifting device for lifting persons along the shaft of a wind generator.
WO2011161740A1 (en) 2010-06-24 2011-12-29 櫻井技研工業株式会社 Maintenance method for windmill blade of wind power generation equipment
JP2017125363A (en) 2016-01-15 2017-07-20 日綜産業株式会社 Gondola apparatus for maintenance of blade in wind power generation apparatus

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