JP2002152933A - Method of engineering work using scaffolding net - Google Patents

Method of engineering work using scaffolding net

Info

Publication number
JP2002152933A
JP2002152933A JP2000341359A JP2000341359A JP2002152933A JP 2002152933 A JP2002152933 A JP 2002152933A JP 2000341359 A JP2000341359 A JP 2000341359A JP 2000341359 A JP2000341359 A JP 2000341359A JP 2002152933 A JP2002152933 A JP 2002152933A
Authority
JP
Japan
Prior art keywords
hook
net
work
tower
scaffold
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.)
Pending
Application number
JP2000341359A
Other languages
Japanese (ja)
Inventor
Toshimitsu Tezuka
利充 手塚
Teruo Ogawa
照夫 小川
Mitsuo Ueda
光男 上田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokyo Electric Power Co Inc
Kandenko Co Ltd
Fujii Denko Co Ltd
Original Assignee
Tokyo Electric Power Co Inc
Kandenko Co Ltd
Fujii Denko Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Electric Power Co Inc, Kandenko Co Ltd, Fujii Denko Co Ltd filed Critical Tokyo Electric Power Co Inc
Priority to JP2000341359A priority Critical patent/JP2002152933A/en
Publication of JP2002152933A publication Critical patent/JP2002152933A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To solve the problem of the operation of opening a jumper wire in emergency situation, which must be conducted by a personnel from a concerned party managed directly by a power company, but which has increasingly been outsourced and subcontracted to subcontractors whose personnel are less skilled because of the need to swiftly perform the operation and there is apprehension that it will take more time than ever to perform the operation, because increase in the diameter of electric wires has made the operation require more and more physical strength and because the conventional jumpers are constructed so that tools are difficult to be used therefore, without opening operation taken into consideration. SOLUTION: A net-like scaffold (lean-out net) is so designed that, when a worker thrusts forward his body to work on a string of insulators as one process of jumper wire opening operation in an emergency, he can secure a foothold thereon. The scaffolding net is light in weight and compact, easy to carry, and set by operation of an expandable operating rod from a tower body, reduces operations in a midair, is installed in safety and stretched under a string of insulators throughout the string, eliminates workers' sense of insecurity, and thus enables reduction in the overall time of work.

Description

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

【0001】[0001]

【発明が属する技術分野】本願は送電線の補修工事にお
いて使用するものであり、特には再送電不良事故など、
緊急時の送電線区間分断のための事故鉄塔ジャンパー開
放作業の際に塔体と碍子連の先端間に展張して使用する
ネット状の足場およびそれを用いた工事方法に関するも
のである。
BACKGROUND OF THE INVENTION The present invention is used for repair work on transmission lines, and is particularly used for retransmission failure accidents.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a net-shaped scaffold that is used between a tower body and the end of an insulator series when an accidental tower jumper is opened to break a transmission line section in an emergency, and a construction method using the same.

【0002】[0002]

【従来の技術および発明が解決しようとする課題】送電
線鉄塔、碍子、電線などが損傷し再送電不良となる事故
が発生した場合には、一刻も早い復旧を目指して当該事
故区間を分断し、他系統経由による緊急送電を行うもの
である。 この事故系統の分断には、当該鉄塔のジャンパー線を開
放する作業が行われる。 緊急時のジヤンパー開放作業においては、緊急時である
が故に熟練した工事要員の確保が困難であり、また車両
が進入できる鉄塔は別として、持参できる用具も限られ
たものである。 建設時の鉄塔における緊線作業等では、図11のように
塔体Tに基端を取り付けた金属製の足場梯子H先端を、
塔体に仮引き留めした新設電線Cに掛け、その上を乗出
して行って碍子連Gの連結作業とか近辺の作業を行うも
のであったが、ウインチなどの大型機材搬入の期待でき
ない緊急補修工事においては多くの課題が残るものであ
った。 小規模の鉄塔ではジャンパー位置までの距離が短く、塔
体内よりの伸縮式操作棒の使用によってジャンパー開放
の遠隔操作が可能な部分もあるが、作業全てを操作棒に
よって終了するものではなく、碍子連上を安全ロープ一
本で乗り出さざるを得ない作業も残った。また大規模鉄
塔ではアーム先より碍子連へ乗出す作業は避けられない
ものであった。 高所作業の中でもこの乗り出し作業は危険なものであ
り、熟練した作業員でも困難なものである。 緊急時の補修工事においては作業員の人選をする時間的
余裕はなく、一般的な作業員であれば可能なような工事
方法が望まれていた。
2. Description of the Related Art In the event of an accident in which transmission towers, insulators, electric wires, etc. are damaged and retransmission failure occurs, the accident section is divided for the purpose of quick recovery. And emergency power transmission via another system. In order to divide the accident system, work to open the jumper line of the tower is performed. It is difficult to secure skilled construction personnel in the emergency jumper opening work because of the emergency, and the tools that can be brought are limited, apart from the steel tower where vehicles can enter. At the time of work such as tightening work on a steel tower during construction, a metal scaffold ladder H having a base end attached to a tower body T as shown in FIG.
Emergency repair work was to hook on the new electric wire C temporarily held on the tower body, embark on it, and carry out the work of connecting the insulator chain G or the nearby work, but large equipment such as winches can not be brought in. In, many issues remained. In small towers, the distance to the jumper position is short, and there is a part where the jumper can be opened remotely by using a telescopic operation rod from inside the tower, but not all operations are completed by the operation rod, and insulators are not used. Some work had to be started with a single safety rope. On large-scale towers, it was inevitable to get into the insulator chain from the arm end. This embarking work is dangerous even at high altitudes, and is difficult even for skilled workers. In emergency repair work, there is no time to select workers, and a construction method that can be performed by ordinary workers has been desired.

【0003】[0003]

【課題を解決するための手段】本願では碍子連の下方に
ネットを張り、碍子連を手摺としてネット上を移動する
ことによって作業員が安心してジャンパー開放作業がで
きる方法を提案する。 具体的には方形のポリプロピレン製ネットの先端両隅部
に遠隔係止用のフックを備え、このフックを塔体内より
操作棒で碍子連先端部に係止し、ネット基端は塔体に固
定して、作業員はこの上を移動して必要な作業を行うも
のである。 塔体と碍子連先端部間に幅広く張られたネットは、移動
経路を左右に広くカバーするため作業員に安心感を与
え、また万が一足を踏み外しても網目に体が引き留めら
れて墜落には至らないものである。 またネットはリュック様の収納袋に収容し、操作棒は肩
掛けベルトを設けて構成し、車両の進入不可能な山道で
の運搬、また昇塔時を考慮するものである。
SUMMARY OF THE INVENTION The present invention proposes a method in which a jumper can be safely opened by setting a net below the insulator series and moving the insulator series as a handrail on the net. Specifically, a hook for remote locking is provided at both corners of the tip of the rectangular polypropylene net, and this hook is locked from the inside of the tower to the insulator connecting tip with an operating rod, and the base of the net is fixed to the tower Then, the worker moves on this to perform necessary work. The net stretched widely between the tower body and the tip of the insulator series gives workers a sense of security because they cover the path of movement widely to the left and right. It cannot be reached. The net is housed in a backpack-like storage bag, and the operating rod is provided with a shoulder belt, so that the vehicle can be transported on mountain roads where vehicles cannot enter, or when climbing a tower.

【0004】[0004]

【実施例】本願の実施例を示す。図1のように、軽量化
のためポリプロピレンスパン糸撚回ロープによって編み
上げた略台形状のネットNの底辺2隅にフック2,3を
連結して構成する。 このフック2,3を図10のように碍子連Gおよび電線
Cに係止し、台形上辺となるネット部を塔体に緊縛して
使用するものである。 この台形状にネットNを構成するのは、塔体より乗出す
部分はそんなに広くする必要はなく、電線へ係止する側
は広い方が作業に好適だからである。 フック2,3は操作棒Sによってその係脱を可能とする
ため特殊な構造を採用する。
An embodiment of the present invention will be described. As shown in FIG. 1, hooks 2 and 3 are connected to the bottom two corners of a substantially trapezoidal net N knitted with a polypropylene spun yarn twisted rope for weight reduction. The hooks 2 and 3 are locked to the insulator string G and the electric wire C as shown in FIG. 10, and the net portion, which is the upper side of the trapezoid, is used by being tied to the tower body. The trapezoidal shape of the net N is because the portion that protrudes from the tower body does not need to be so wide, and a wider side to be locked to the electric wire is more suitable for work. The hooks 2 and 3 adopt a special structure to enable the hooks 2 and 3 to be disengaged by the operation rod S.

【0005】一方のフックを図2乃至図4によって説明
する。このフック2はその係止有効径が大きく、碍子連
Gに係止用であり、要求されるのは碍子に係止可能な口
径であって、係止後の横方向へのずれは考慮する必要は
ない。 大口径フック2は基端部にネットNと連結する撚り戻し
金具29を備えたフック本体21と、その鉤部20口を閉鎖す
るキャップ24およびキャップ24の先端に回動自在に連結
しフック本体21の背部を横切って伸びる連結バー26より
成る。連結バー26の先端には吊環部28が設けられ、連結
バー26がフックの背部と交差する部分のフック本体21に
は摺動材22および係止ピン23が設けられる。連結バー26
はこの両者の間で移動するものである。キャップ24とし
ては、鉤部20の口を閉鎖するものであればよく、棒状、
バー等の鋼体でよい。操作棒Sの先端に装着した先端金
具S1により吊環部28を吊ると、連結バー26は摺動材22
に摺接しながら移動し、一体的に連結されたキャップ24
を回動させる。よってフック2の鉤部20口は開放し、係
止物の受け入れが可能となる。この係止物は本願におい
ては碍子連Gである。 碍子連Gへの係止が終わると操作棒Sでの吊上げを解
く。そうすれば常時鉤口を閉鎖する方向に附勢されたバ
ネによってキャップ24は閉じ、連結バーの中間部、フッ
ク本体21背部の位置に設けられた切欠で成る係止部27が
係止ピン23と係合して、連結バー26の移動をロックし、
よって同体であるキャップ24の回動を防止する。
[0005] One hook will be described with reference to Figs. This hook 2 has a large effective locking diameter and is used for locking the insulator series G. What is required is a diameter that can be locked to the insulator, and the lateral displacement after locking is considered. No need. The large-diameter hook 2 has a hook body 21 provided at its base end with a untwist metal fitting 29 connected to the net N, a cap 24 for closing the hook portion 20 and a hook body rotatably connected to the tip of the cap 24. It comprises a connecting bar 26 extending across the back of 21. A suspension ring portion 28 is provided at the tip of the connection bar 26, and a sliding member 22 and a locking pin 23 are provided on a hook body 21 where the connection bar 26 intersects the back of the hook. Connecting bar 26
Moves between the two. The cap 24 may be any as long as it closes the mouth of the hook 20,
A steel body such as a bar may be used. When the hanging ring 28 is hung by the tip fitting S1 attached to the tip of the operating rod S, the connecting bar 26
The cap 24 that moves while sliding on the
Is rotated. Therefore, the hook 20 of the hook 2 is opened, and the hook can be received. This locking object is an insulator series G in the present application. When the engagement with the insulator string G is completed, lifting with the operation rod S is released. Then, the cap 24 is closed by a spring constantly biased in the direction of closing the hook, and the locking portion 27 formed of a notch provided at the intermediate portion of the connecting bar and at the back of the hook body 21 is locked by the locking pin 23. To lock the movement of the connecting bar 26,
Therefore, rotation of the cap 24, which is the same body, is prevented.

【0006】図5乃至図7に示す小口径のフック3も基
本的には同構成である。このフック3は電線C部への係
止を目的としており、口径は小さいが、鉤口内の係止物
を開閉キャップ34で押圧し、係止位置が移動しない構成
となっている。 吊環部40と開閉キャップ34の連結部にリンク機構を付加
して開閉キャップ34の鉤部閉鎖位置を可変的とし、ネッ
ト重量の負荷によって鉤部32内の係止物を開閉キャップ
34が押圧する構造を採用している。 フック本体31の下端部に長孔33を設け、撚り戻し金具45
をこの長孔33内に移動自在に連結し、また撚り戻し金具
45の長孔内先端部を開閉キャップ34基端部および吊環部
40に同時に軸止42することによって互いに関連した動作
をする構成とする。 フック本体31の先端部は鉤部32に曲げ、この鉤部32を閉
鎖する開閉キャップ34を本体背部に軸止35して設ける。
開閉キャップ34は略U字状に曲設を施されており、鉤部
32先端はこのU字空間内に収容される。本体31背部より
突出した開閉キャップ34他端の突出辺36には、吊環部40
の中間部およびリンク41が同時に軸止42される。このリ
ンク41の他端は先に述べたよう、撚り戻し金具45の長孔
33内に位置する端部に接続される。
The small-diameter hook 3 shown in FIGS. 5 to 7 has basically the same configuration. The hook 3 is intended to be locked to the electric wire C portion, and has a small diameter, but has a structure in which a locked object in the hook is pressed by the opening / closing cap 34 so that the locked position does not move. A link mechanism is added to the connecting portion between the suspension ring portion 40 and the opening / closing cap 34 to make the hook closing position of the opening / closing cap 34 variable, and the lock in the hook 32 is opened / closed by the load of the net weight.
The structure that 34 presses is adopted. A long hole 33 is provided at the lower end of the hook body 31, and the untwist fitting 45 is provided.
Is movably connected to the elongated hole 33, and
Open and close the tip of the slot in the slot 45.
A configuration is adopted in which the shafts 42 are simultaneously engaged with the shaft 40 to perform operations related to each other. The tip of the hook main body 31 is bent into a hook 32, and an opening / closing cap 34 for closing the hook 32 is provided on the back of the main body by a shaft 35.
The opening / closing cap 34 is bent in a substantially U-shape.
The 32 tip is accommodated in this U-shaped space. A projecting side 36 at the other end of the opening / closing cap 34 projecting from the back of the main body 31
And the link 41 are simultaneously stopped by the shaft 42. The other end of this link 41 is a long hole of the untwist fitting 45 as described above.
Connected to the end located within 33.

【0007】以上の構成により、吊環部40を吊上げれば
開閉キャップ34は回動し、鉤口は開放されると共にリン
ク41で連結された撚り戻し金具45も長孔33内を鉤部32方
向へ移動する。この動作によって撚り戻し金具45に負荷
がかかった際、つまりネットNを接続した際には、開閉
キャップ34は鉤口を閉鎖した位置よりさらにその閉鎖範
囲を狭める方向へ回動する。よって鉤部32内の電線Cは
強く押圧され、ネットNの電線Cへの係止位置は固定さ
れるものである。
With the above construction, when the suspension ring 40 is lifted, the opening / closing cap 34 is rotated, the hook is opened, and the untwisting metal fitting 45 connected by the link 41 also moves in the elongated hole 33 in the direction of the hook 32. Move to. When a load is applied to the untwist fitting 45 by this operation, that is, when the net N is connected, the opening / closing cap 34 rotates in a direction to further narrow the closed range from the position where the hook is closed. Therefore, the electric wire C in the hook portion 32 is strongly pressed, and the locking position of the net N to the electric wire C is fixed.

【0008】図8、9は鉄塔Tおよび電線C、碍子連G
との連結に用いる連結ベルトBを示す。 一端にカラビナ5、中間部にバックル7を配して細幅織
ベルト6の縫製加工で構成する。 鉄塔Tの塔体に巻回してベルト6先端をバックル7に挿
通して固定し、カラビナ5をネットの目合に係止する。 通常はネットN隅部にそれぞれ1本づつ連結固定する
が、状況により増加して使用する。 碍子連G側のネットN辺の中間部にも状況に応じて同様
に連結し、碍子連Gあるいは電線Cに緊縛固定する。 この連結ベルトBの数を増やせば、弛んで変形していた
ネットの目合が正方形に近づき、足を掛け易くなるた
め、できるだけ多く用いることが望ましい。 図10は、このようにして、鉄塔TにネットNを取付け
た状態を示したものである。
FIGS. 8 and 9 show a tower T, an electric wire C, and an insulator string G.
5 shows a connection belt B used for connection with the connection belt. A carabiner 5 is provided at one end and a buckle 7 is provided at an intermediate portion. It is wound around the tower of the steel tower T, and the tip of the belt 6 is inserted into the buckle 7 and fixed, and the carabiner 5 is locked to the mesh of the net. Normally, one by one is connected and fixed at each corner of the net N, but it is used in an increased number depending on the situation. It is also connected to the middle part of the side of the net N on the insulator string G side in a similar manner depending on the situation, and is fixed to the insulator string G or the electric wire C. If the number of the connection belts B is increased, the mesh of the slack and deformed net approaches a square, and it becomes easy to put a foot on the net. Therefore, it is desirable to use as many as possible. FIG. 10 shows a state where the net N is attached to the steel tower T in this way.

【0009】図1に示す操作棒Sはグラスファイバー製
で、順次細径のパイプを内部に収容する構成の伸縮式
で、先端部にはフック2,3の吊環部28,40係止用の先
端金具S1を備える。 また、持ち運びを考慮して肩掛けベルトS2を設ける。
The operation rod S shown in FIG. 1 is made of glass fiber and is of an extendable type having a structure in which thin pipes are sequentially accommodated therein. A tip fitting S1 is provided. In addition, a shoulder belt S2 is provided in consideration of carrying.

【0010】以上の構成物よりなるネット足場をリュッ
ク状収納袋に収容する。 現場の鉄塔Tに到着すれば、背負って昇塔するかあるい
は状況が許せば滑車を用いて塔上へと運び上げる。 取り付けにあたっては操作棒Sを伸張し、先端金具S1
に大口径のフック2を掛けて吊上げ、碍子連Gに係止す
る。まず碍子連Gに係止することによってフック2はそ
の勾配に係わらず移動しないため、次の電線係止用のフ
ック3係止操作が容易となる。電線Cに小口径のフック
3を係止すれば、ネットNの端部を塔体側に引き寄せ、
所定位置を連結ベルトBで緊縛する。この際鉄塔Tの規
模・形状等によってネットNに余長があれば連結ベルト
Bのカラビナ5係止位置はネットNの周縁ロープである
必要はなく、適当な位置の目合に係止する。このネット
展張にあたってはできるだけ弛みがないように配慮す
る。作業員が乗り出せば当然下方に伸びるため、設置時
より弛みがあると作業が困難となる。 一応の展張が終わると作業にかかるまでに碍子連Gと電
線Cに係止したネットN辺に連結ベルトBを所定数配
し、緊縛する。このような作業の間は万が一を考慮し
て、安全帯、移動ロープ等の墜落防止措置を講じておく
ことが望ましい。 以上の準備が成れば、ジャンパー線Jの開放作業を行う
のであるが、作業が終了すれば設置時とは逆の手順で収
容を行う。
[0010] The net scaffold composed of the above components is accommodated in a backpack-like storage bag. Upon arriving at the tower T at the site, the person climbs up the tower or, if the situation permits, carries it over the tower using a pulley. When mounting, extend the operating rod S and attach the tip fitting S1.
And hook it with a large diameter hook 2 to lock it to the insulator string G. First, the hook 2 does not move irrespective of its inclination by being locked to the insulator series G, so that the next hook locking operation for locking the electric wire 3 becomes easy. If the small-diameter hook 3 is locked to the electric wire C, the end of the net N is pulled toward the tower body,
The predetermined position is tied up by the connecting belt B. At this time, if the net N has an extra length due to the scale and shape of the steel tower T, the locking position of the carabiner 5 of the connecting belt B does not need to be the peripheral rope of the net N, and is locked at a suitable position. At the time of this Internet expansion, care should be taken to minimize slack. If the worker gets out, it naturally extends downward, and if there is more slack than at the time of installation, the work becomes difficult. When the extension is completed, a predetermined number of connecting belts B are arranged on the side of the net N locked to the insulator string G and the electric wire C before the work is started, and the belt is tightened. During such work, it is desirable to take safety measures such as safety belts and moving ropes, etc., in case of emergency. When the above preparation is completed, the opening operation of the jumper wire J is performed, but when the operation is completed, the housing is performed in a procedure reverse to that at the time of installation.

【0011】[0011]

【発明の効果】以上のように本願ネット足場を採用する
ことにより、緊急補修工事時の塔上作業が安全に、かつ
時間短縮の付随効果を持って行うことが可能となるもの
である。従来の足場梯子ではその塔上への運搬からして
大変な作業であったが、本願は昇塔時に背負って運搬が
可能であり、また設置後においても移動通路両側に幅広
い余裕が得られるため、高所作業の心理的負担は大きく
軽減され、作業能率が向上するものである。 従来では緊急時の作業要員の人選が課題であったが、熟
練した高所作業専門者でなくとも、ある程度の経験があ
れば碍子連への乗出しが容易に行えるため、事故復旧が
短時間で行える。 また、緊急復旧工事だけでなく、送電線新設の際にも採
用可能なものである。
As described above, the use of the net scaffold of the present invention makes it possible to safely perform the work on the tower at the time of emergency repair work with the attendant effect of shortening the time. With conventional scaffold ladders, it was a difficult task to transport on the tower, but this application can be carried on the back when climbing the tower, and even after installation, there is a wide margin on both sides of the movement path In addition, the psychological burden of working at heights is greatly reduced, and work efficiency is improved. In the past, it was an issue to select workers in emergency situations.However, even if you are not a skilled high-level work specialist, if you have a certain level of experience, you can easily embark on the insulator chain, so that accident recovery can be completed in a short time. Can be done with It can be used not only for emergency restoration work, but also for new transmission lines.

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

【図1】本願ネット足場の1組の正面図。FIG. 1 is a front view of one set of the present net scaffold.

【図2】本願ネット足場に用いる大口径フックの正面
図。
FIG. 2 is a front view of a large-diameter hook used for the net scaffold of the present application.

【図3】本願ネット足場に用いる大口径フックの左側面
図。
FIG. 3 is a left side view of a large-diameter hook used for the net scaffold of the present application.

【図4】本願ネット足場に用いる大口径フックを吊下げ
たところの正面図。
FIG. 4 is a front view showing a state where a large-diameter hook used for the net scaffold of the present application is suspended.

【図5】本願ネット足場に用いる小口径フックの正面
図。
FIG. 5 is a front view of a small-diameter hook used for the net scaffold of the present application.

【図6】本願ネット足場に用いる小口径フックの右側面
図。
FIG. 6 is a right side view of a small-diameter hook used for the net scaffold of the present application.

【図7】本願ネット足場に用いる小口径フックを吊下げ
たところの正面図。
FIG. 7 is a front view showing a state where a small-diameter hook used for the net scaffold of the present application is suspended.

【図8】本願ネット足場に用いる緊張ベルトの正面図。FIG. 8 is a front view of a tension belt used for the net scaffold of the present application.

【図9】本願ネット足場に用いる緊張ベルトの左側面
図。
FIG. 9 is a left side view of the tension belt used for the net scaffold of the present application.

【図10】本願ネット足場の取付状態正面図。FIG. 10 is a front view of the attached state of the net scaffold of the present application.

【図11】従来の梯子式足場の取付状態平面図。FIG. 11 is a plan view showing an attached state of a conventional ladder-type scaffold.

【符号の説明】[Explanation of symbols]

B 連結ベルト C 電線 G 碍子連 H 足場梯子 J ジャンパー線 N ネット S 操作棒 T 鉄塔 2 大口径フック 3 小口径フック 5 カラビナ 6 ベルト 7 バックル 20 鉤部 21 フック本体 22 摺動材 23 係止ピン 24 キャップ 25 支軸 26 連結バー 27 係止部 28 吊環部 29 撚り戻し金具 31 フック本体 32 鉤部 33 長孔 34 開閉キャップ 35 軸 36 突出片 40 吊環部 41 リンク 42 軸 44 軸 45 撚り戻し金具 B Connecting belt C Electric wire G Insulator series H Scaffold ladder J Jumper wire N Net S Operating rod T Steel tower 2 Large diameter hook 3 Small diameter hook 5 Carabiner 6 Belt 7 Buckle 20 Hook 21 Hook body 22 Hook body 22 Sliding material 23 Lock pin 24 Cap 25 Support shaft 26 Connecting bar 27 Locking part 28 Suspension ring part 29 Twist return bracket 31 Hook body 32 Hook part 33 Long hole 34 Opening / closing cap 35 Axis 36 Projection piece 40 Suspension ring 41 Link 42 Axis 44 Axis 45 Twist return fixture

───────────────────────────────────────────────────── フロントページの続き (72)発明者 小川 照夫 東京都港区芝浦四丁目8番33号株式会社関 電工内 (72)発明者 上田 光男 兵庫県加東郡滝野町上滝野1573番地の2藤 井電工株式会社内 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Teruo Ogawa 4-33, Shibaura, Minato-ku, Tokyo Inside Seki Electric Works Co., Ltd. (72) Inventor Mitsuo Ueda 2 Fuji at 1573 Uekitino, Takino-cho, Kato-gun, Hyogo Prefecture Idenko Co., Ltd.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 軽量繊維で所定網目に構成した略方形ネ
ットの一端辺を塔体に接続し、他端辺の両隅には操作棒
により遠隔操作係脱自在なフックを連結して、操作棒に
より碍子連および電線に係止し、ネットを取付けた後、
ネット上を移動することによって作業を行い、作業後は
操作棒によってフックを開放して係止物より撤収するこ
とを特徴とするネット足場を用いた工事方法。
An operation is performed by connecting one end of a substantially rectangular net formed of a lightweight mesh to a tower body to a tower body, and connecting hooks which can be remotely operated and detached by operating rods to both corners of the other end. After securing to the insulator series and electric wire with a rod and attaching the net,
A construction method using a net scaffold, wherein the work is performed by moving on a net, and after the work, the hook is opened with an operating rod and removed from a locking object.
【請求項2】 ポリプロピレンスパン糸のロープで所定
網目に構成した略方形のネットの一辺両端には、吊環部
に吊上げ力を負荷することにより鉤部を開放し、吊環部
が無負荷常態では鉤部を閉鎖する構成のフックを連結
し、ネットの他辺には鉄塔に緊縛するベルトを設けたこ
とより成るネット足場。
2. A hook portion is opened by applying a lifting force to a suspension ring portion at both ends of one side of a substantially square net formed of a predetermined mesh with a rope of polypropylene spun yarn. A net scaffold consisting of connecting a hook that closes the part and providing a belt on the other side of the net that binds to the tower.
【請求項3】 碍子連への係止用フックは、先端部に鉤
部を、基端部にネットと連結する撚り戻し金具を備えた
フック本体と、中間部に前記鉤部を閉鎖附勢するよう軸
止したキャップよりなり、 前記キャップの先端には、回動自在に連結されて前記フ
ック本体の背部を横切って伸びる連結バーを設け、前記
連結バーの先端には吊環部を設け、前記連結バーがフッ
クの背部と交差する部分の前記フック本体には、摺動材
と係止ピンとを設けて、連結バーがこの両者間で移動す
るように構成し、 前記吊環部を吊ると、連結バーは摺動しながら一体的に
連結されたキャップを回動してフックの鉤部を開放し、
前記吊環部の吊りを止めると、前記撚り戻し金具に連結
された前記ネットの荷重により、キャップの鉤部閉鎖を
維持することを特徴とする請求項1乃至2に記載のフッ
ク。
3. A hook main body having a hook portion at a distal end portion and a twist-return metal fitting connected to a net at a base end portion, and a closing bias of the hook portion at an intermediate portion. A connection bar that is rotatably connected and extends across the back of the hook body, and a suspension ring portion is provided at the tip of the connection bar. The hook body at the portion where the connecting bar intersects the back of the hook is provided with a sliding member and a locking pin, and the connecting bar is configured to move between the two. The bar pivots the integrally connected cap while sliding to release the hook of the hook,
The hook according to claim 1, wherein when the suspension of the suspension ring is stopped, the hook portion of the cap is kept closed by a load of the net connected to the untwist fitting. 4.
【請求項4】 前記碍子連に係止するフックは、前記鉤
部の係止有効径が大きく、前記電線に係止するフック
は、係止有効径は小さいが、前記吊環部と前記キャップ
の連結部にリンク機構を設けて前記キャップの鉤部開閉
位置を可変的な構成としたことを特徴とする請求項1乃
至3に記載のフック。
4. The hook that locks to the insulator series has a large effective locking diameter of the hook portion, and the hook that locks to the electric wire has a small effective locking diameter. The hook according to any one of claims 1 to 3, wherein a link mechanism is provided in the connecting portion so that the hook opening / closing position of the cap is variable.
JP2000341359A 2000-11-09 2000-11-09 Method of engineering work using scaffolding net Pending JP2002152933A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000341359A JP2002152933A (en) 2000-11-09 2000-11-09 Method of engineering work using scaffolding net

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000341359A JP2002152933A (en) 2000-11-09 2000-11-09 Method of engineering work using scaffolding net

Publications (1)

Publication Number Publication Date
JP2002152933A true JP2002152933A (en) 2002-05-24

Family

ID=18816114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000341359A Pending JP2002152933A (en) 2000-11-09 2000-11-09 Method of engineering work using scaffolding net

Country Status (1)

Country Link
JP (1) JP2002152933A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008182795A (en) * 2007-01-23 2008-08-07 Chugoku Electric Power Co Inc:The Auxiliary arm for overhead wire ladder and overhead wire ladder
JP2009247126A (en) * 2008-03-31 2009-10-22 Kansai Electric Power Co Inc:The Personnel safety net
CN101949117A (en) * 2010-08-23 2011-01-19 江苏省电力公司宜兴市供电公司 Safety insulating net structure of highway
CN103683099A (en) * 2013-12-06 2014-03-26 国家电网公司 Portable safety net bag for electric pole
JP2014143871A (en) * 2013-01-25 2014-08-07 Chugoku Electric Power Co Inc:The Fixture for overhead wire lean-over instrument and method of fixing overhead wire lean-over instrument by using the same
JP2016174491A (en) * 2015-03-17 2016-09-29 中国電力株式会社 Protective member support apparatus and installation method of the protective member
JP2020056289A (en) * 2018-09-27 2020-04-09 Mogコンサルタント株式会社 High place work method and rope net product for high place work used for the same
CN111864627A (en) * 2020-07-24 2020-10-30 天津送变电工程有限公司 Automatic recovery type removes insulating auxiliary net of bird's nest

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008182795A (en) * 2007-01-23 2008-08-07 Chugoku Electric Power Co Inc:The Auxiliary arm for overhead wire ladder and overhead wire ladder
JP2009247126A (en) * 2008-03-31 2009-10-22 Kansai Electric Power Co Inc:The Personnel safety net
CN101949117A (en) * 2010-08-23 2011-01-19 江苏省电力公司宜兴市供电公司 Safety insulating net structure of highway
JP2014143871A (en) * 2013-01-25 2014-08-07 Chugoku Electric Power Co Inc:The Fixture for overhead wire lean-over instrument and method of fixing overhead wire lean-over instrument by using the same
CN103683099A (en) * 2013-12-06 2014-03-26 国家电网公司 Portable safety net bag for electric pole
JP2016174491A (en) * 2015-03-17 2016-09-29 中国電力株式会社 Protective member support apparatus and installation method of the protective member
JP2020056289A (en) * 2018-09-27 2020-04-09 Mogコンサルタント株式会社 High place work method and rope net product for high place work used for the same
CN111864627A (en) * 2020-07-24 2020-10-30 天津送变电工程有限公司 Automatic recovery type removes insulating auxiliary net of bird's nest
CN111864627B (en) * 2020-07-24 2022-01-21 天津送变电工程有限公司 Automatic recovery type removes insulating auxiliary net of bird's nest

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