JP7750293B2 - Jig and installation method - Google Patents
Jig and installation methodInfo
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- JP7750293B2 JP7750293B2 JP2023544862A JP2023544862A JP7750293B2 JP 7750293 B2 JP7750293 B2 JP 7750293B2 JP 2023544862 A JP2023544862 A JP 2023544862A JP 2023544862 A JP2023544862 A JP 2023544862A JP 7750293 B2 JP7750293 B2 JP 7750293B2
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/20—Side-supporting means therefor, e.g. using guy ropes or struts
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Description
本開示は、電柱に取り付ける治具及びその電柱の敷設方法に関する。 This disclosure relates to a jig to be attached to a utility pole and a method for installing the utility pole.
従来、既設の電柱は内部が中空形状かつ長手方向にテーパ形状それぞれ有し、金属材料ないしコンクリート材料で作成され、ケーブルを上空に敷設すること等を目的として設置されている。 Traditionally, existing utility poles have a hollow interior and a tapered shape along their length, are made of metal or concrete materials, and are installed for purposes such as laying cables in the air.
これらの電柱においては、電柱から一定距離だけ離れた地面に対して、電柱の頭頂部より下部の特定の箇所から鋼より線等により構成される支線を降ろし、当該支線をアンカ等により地面に固定することで、ケーブル等を敷設したことにより生じる不平衡荷重の反力を支線へ分担させることにより、不平衡荷重の解消を図る工法が存在する（例えば、非特許文献１を参照。）。 For these utility poles, there is a construction method in which a guy wire made of steel strands or the like is lowered from a specific point below the top of the pole onto the ground a certain distance from the pole, and the guy wire is fixed to the ground with an anchor or the like, thereby allowing the guy wire to share the reaction force of the unbalanced load caused by laying the cable, etc., thereby eliminating the unbalanced load (see, for example, non-patent document 1).
しかし、上記の不平衡荷重の解消を図る工法には次の様な課題が存在する。 However, the construction method aimed at eliminating the above-mentioned unbalanced load has the following challenges:
電柱の建設時に、支線１５を地面５０に固定するためアンカ１６等を敷設することがある。このとき、電柱１０の地際付近からアンカ１６までの離隔距離（以下、根開き）について制限がある。よって、図１の様に、家屋２０等により敷設範囲が制限される狭隘箇所に支線１５を敷設する場合、家屋２０への接触あるいは通行者５への接触を回避する施策が求められるという第１の課題がある。When erecting a utility pole, anchors 16 or the like may be laid to secure the guy wire 15 to the ground 50. In this case, there is a limit to the distance (hereinafter referred to as "root spacing") from the ground level of the utility pole 10 to the anchor 16. Therefore, when laying the guy wire 15 in a narrow location where the laying range is limited by a house 20 or the like, as shown in Figure 1, a first challenge arises: measures are required to avoid contact with the house 20 or pedestrians 5.
また、支線の敷設が必要な電柱に対して支線を根開きを狭めて設置することは、支線の電柱に対する取り付け角度が減少することにより、不平衡荷重の解消という支線の効果が十分に得られ難いという第２の課題がある。 Furthermore, installing guy wires with a narrower root gap on utility poles where they are required presents a second problem in that the attachment angle of the guy wire to the utility pole is reduced, making it difficult to fully achieve the effect of the guy wire in eliminating unbalanced loads.
このような狭隘箇所に建設された不平衡荷重の発生している電柱に対して、従来は、支線が不要となるような強固な電柱（自立柱）に建て替えることで上記課題を解決してきた。しかし、自立柱は一般的な電柱よりも単価が高く、施工費用が高額となるという課題がある。また、狭隘箇所では、その狭さから重機等が入ることが不可能な場合があり、人力による建柱作業に頼らざるを得ないことも多いため、接触事故や周辺家屋の損傷などの事故に注意しなければならないという課題もある。 In the past, the issue of unbalanced loads on utility poles constructed in such narrow spaces has been resolved by replacing them with stronger poles (self-supporting poles) that do not require guy wires. However, self-supporting poles have a higher unit price than regular utility poles, resulting in high construction costs. Furthermore, in narrow spaces, heavy machinery may not be able to enter, and pole erection work often has to be done by hand, which poses the issue of needing to be careful of accidents such as collisions and damage to surrounding houses.
そこで、本発明は、上記課題を解決するために、家屋や通行者への接触を回避でき、狭隘箇所に建設された電柱の不平衡荷重を解消できる支線を敷設できる治具及び敷設方法を提供することを目的とする。 In order to solve the above problems, the present invention aims to provide a jig and installation method that can lay guy wires that can avoid contact with houses and pedestrians and eliminate unbalanced loads on utility poles erected in narrow locations.
上記目的を達成するために、本発明に係る敷設方法は、先端に、電柱の頂上部からの支線（以下、上部支線）を固定するための部材および地面側の支線（以下、下部支線）を固定するための部材を有する治具を電柱に固定することとした。 In order to achieve the above-mentioned objective, the installation method of the present invention involves fixing a jig to a utility pole, the jig having at its tip a member for fixing the guy wire from the top of the utility pole (hereinafter referred to as the upper guy wire) and a member for fixing the guy wire on the ground side (hereinafter referred to as the lower guy wire).
具体的には、本発明に係る治具は、電柱に対して垂直となるように前記電柱の表面に一端が取り付けられる棒状の治具であって、
他端に、前記電柱の頂上部と接続する上部支線を保持する第１部材と、前記電柱と平行に地面と接続する下部支線を保持する第２部材と、を備えることを特徴とする。
Specifically, the jig according to the present invention is a rod-shaped jig having one end attached to the surface of the utility pole so as to be perpendicular to the utility pole,
At the other end, it is characterized by having a first member that holds an upper branch wire that connects to the top of the utility pole, and a second member that holds a lower branch wire that is parallel to the utility pole and connects to the ground.
また、本発明に係る敷設方法は、
棒状の治具が電柱に対して垂直となるように前記電柱の表面に前記治具の一端を取り付けること、
前記治具の他端と前記電柱の頂上部とを上部支線で接続すること、及び
下部支線が前記電柱と平行となるように前記治具の他端と地面とを前記下部支線で接続すること、
を行う。
The laying method according to the present invention further comprises:
Attaching one end of a rod-shaped jig to a surface of the utility pole so that the jig is perpendicular to the utility pole;
Connecting the other end of the jig to the top of the utility pole with an upper support wire, and connecting the other end of the jig to the ground with a lower support wire so that the lower support wire is parallel to the utility pole.
Do the following.
本治具の第１部材と電柱の先端とを上部支線で接続し、本治具の第２部材と地面とを地面に垂直な下部支線で接続することで、上部支線の電柱に対する取り付け角度を確保して電柱の不平衡荷重を解消しつつ、狭隘箇所への敷設が可能となる。そして、電柱と下部支線間で最適な離隔距離を確保することで、家屋や通行人への接触リスクの低減できる。 By connecting the first component of the jig to the tip of the utility pole with an upper support wire and the second component of the jig to the ground with a lower support wire perpendicular to the ground, the upper support wire can be attached at a fixed angle to the utility pole, eliminating unbalanced loads on the utility pole and enabling installation in narrow spaces. Furthermore, by ensuring an optimal distance between the utility pole and the lower support wire, the risk of contact with houses or passersby can be reduced.
さらに、本発明に係る治具は、長手方向の長さを可変とする伸縮機構をさらに備える。 Furthermore, the jig of the present invention further includes an extension mechanism that allows the longitudinal length to be adjusted.
そして、本発明に係る敷設方法は、
前記電柱に掛かる不平衡荷重を計算すること、
前記治具の長手方向の長さと前記上部支線で生じさせる載荷量との関係を取得しておくこと、
前記関係から前記不平衡荷重を解消する前記治具の前記長さを見出すこと、及び
前記電柱に取り付けた前記治具の前記長さを前記関係から見出した前記長さに設定すること
をさらに行う。
The laying method according to the present invention comprises the steps of:
calculating an unbalanced load on the utility pole;
Obtaining a relationship between the longitudinal length of the jig and the load amount generated by the upper support line;
The method further comprises finding the length of the jig that eliminates the unbalanced load from the relationship, and setting the length of the jig attached to the utility pole to the length found from the relationship.
治具の長さを調整できる可変機構を取り付けることにより、より柔軟に周囲環境に適した狭隘箇所での施工を可能とし、従来では実現できていなかった狭隘箇所における不平衡荷重の解消によって、電柱の長期安全利用と建替えコストの削減が実現できる。 By installing a variable mechanism that can adjust the length of the jig, construction can be carried out more flexibly in narrow spaces that are suited to the surrounding environment.By eliminating unbalanced loads in narrow spaces that were previously not possible, it is possible to achieve long-term safe use of utility poles and reduce reconstruction costs.
なお、上記各発明は、可能な限り組み合わせることができる。 The above inventions can be combined as much as possible.
本発明は、家屋や通行者への接触を回避でき、狭隘箇所に建設された電柱の不平衡荷重を解消できる支線を敷設できる治具及び敷設方法を提供することができる。 The present invention provides a jig and installation method that can lay guy wires that avoid contact with houses and pedestrians and eliminate unbalanced loads on utility poles erected in narrow spaces.
添付の図面を参照して本発明の実施形態を説明する。以下に説明する実施形態は本発明の実施例であり、本発明は、以下の実施形態に制限されるものではない。なお、本明細書及び図面において符号が同じ構成要素は、相互に同一のものを示すものとする。 Embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below are examples of the present invention, and the present invention is not limited to the following embodiments. Note that components with the same reference numerals in this specification and drawings are considered to be identical to each other.
（実施形態１）
図２及び図３は、本実施形態の治具３０を説明する図である。治具３０は、電柱１０に対して垂直となるように電柱１０の表面に一端３０ａが取り付けられる棒状の治具であって、
他端３０ｂに、電柱１０の頂上部１０ａと接続する上部支線１５－１を保持する第１部材３１と、電柱１０と平行に地面５０と接続する下部支線１５－２を保持する第２部材３２と、を備えることを特徴とする。
(Embodiment 1)
2 and 3 are diagrams illustrating the jig 30 of this embodiment. The jig 30 is a rod-shaped jig having one end 30a attached to the surface of the utility pole 10 so as to be perpendicular to the utility pole 10.
The other end 30b is characterized by having a first member 31 that holds an upper branch wire 15-1 that connects to the top portion 10a of the utility pole 10, and a second member 32 that holds a lower branch wire 15-2 that connects to the ground 50 parallel to the utility pole 10.
治具３０は、他端３０ｂに上部支線１５－１を固定する第１部材３１及び下部支線１５－２を固定する第２部材３２を有する。治具３０は金属材料等により構成され、丸形、角形等の柱状あるいは筒状の形状である。 The jig 30 has a first member 31 that secures the upper branch wire 15-1 to the other end 30b, and a second member 32 that secures the lower branch wire 15-2. The jig 30 is made of a metal material or the like, and has a round, square, or other columnar or cylindrical shape.
治具３０は、自身の中心軸が電柱１０の中心軸に垂直となるように一端３０ａを電柱１０の表面に固定する。治具３０の固定にはバンド３３を用いることが好ましい。第１部材３１と電柱１０の頂上部１０ａ（線条架渉部）とを上部支線１５－１で接続し、第２部材３２と地面５０とを地面５０に垂直（電柱１０に平行）な下部支線１５－２で接続する。治具３０を用いて支線を敷設することで、上部支線１５－１の電柱１０に対する取り付け角度θを確保して電柱１０の不平衡荷重を解消しつつ、狭隘箇所での支線の敷設が可能となる。そして、電柱１０と下部支線１５－２とを適切に離隔させることで、通行人の歩行等のスペースＡを確保すること、及び家屋２０との接触リスクＢを低減することができる。 One end 30a of the jig 30 is fixed to the surface of the utility pole 10 so that its central axis is perpendicular to the central axis of the utility pole 10. A band 33 is preferably used to secure the jig 30. The first member 31 is connected to the top portion 10a (wire bridging portion) of the utility pole 10 by an upper support wire 15-1, and the second member 32 is connected to the ground 50 by a lower support wire 15-2 that is perpendicular to the ground 50 (parallel to the utility pole 10). Laying the support wire using the jig 30 ensures the attachment angle θ of the upper support wire 15-1 relative to the utility pole 10, eliminating unbalanced loads on the utility pole 10 and enabling the support wire to be laid in narrow spaces. Furthermore, by appropriately separating the utility pole 10 and the lower support wire 15-2, space A for pedestrians to walk and the like can be secured, and the risk B of contact with a house 20 can be reduced.
治具３０は、長手方向の長さを可変とする伸縮機構３４をさらに備える。治具３０の長さを調整できる伸縮機構３４で、より柔軟に周囲環境に適した狭隘箇所での施工を可能とし、従来では実現できていなかった狭隘箇所における不平衡荷重の解消によって、電柱の長期安全利用と建替えコストの削減が実現できる。 The jig 30 is further equipped with an extension mechanism 34 that allows the longitudinal length to be varied. The extension mechanism 34, which allows the length of the jig 30 to be adjusted, allows for more flexible construction in narrow spaces that are suited to the surrounding environment. By eliminating unbalanced loads in narrow spaces that were previously not possible, this enables the safe use of utility poles for a long period of time and reduces reconstruction costs.
（実施形態２）
図４は、本実施形態の敷設方法の手順を説明するフローチャートである。本敷設方法は、
棒状の治具３０が電柱１０に対して垂直となるように電柱１０の表面に治具３０の一端３０ａを取り付けること（ステップＳ０１）、
治具３０の他端３０ｂと電柱１０の頂上部１０ａとを上部支線１５－１で接続すること（ステップＳ０２）、及び
下部支線１５－２が電柱１０と平行となるように治具３０の他端３０ｂと地面５０とを下部支線１５－２で接続すること（ステップＳ０３、Ｓ０４）、
を行う。
(Embodiment 2)
FIG. 4 is a flowchart illustrating the steps of the laying method of this embodiment.
Attaching one end 30a of the rod-shaped jig 30 to the surface of the utility pole 10 so that the jig 30 is perpendicular to the utility pole 10 (step S01);
Connecting the other end 30b of the jig 30 to the top 10a of the utility pole 10 with an upper branch wire 15-1 (step S02), and connecting the other end 30b of the jig 30 to the ground 50 with a lower branch wire 15-2 so that the lower branch wire 15-2 is parallel to the utility pole 10 (steps S03 and S04).
Do the following.
ステップＳ０１：電柱１０の地際部から特定の高さに、治具３０の一端３０ａを固定する。
ステップＳ０２：電柱１０の頂上部１０ａ（線条架渉部：ケーブル等を引き留めている金物）から治具３０の他端３０ｂに対し上部支線１５－１を張り、治具３０を地面５０と水平に固定する。
ステップＳ０３：電柱１０の周囲の地面５０にアンカ１６等を設置する。
ステップＳ０４：設置された治具３０の他端３０ｂから地面５０に対して垂直に下部支線１５－２を張り、アンカ１６等へ固定する。
ステップＳ０５：治具３０に接続した支線が弛むと、不平衡荷重を解消する効果が低減するため、支線の張力を調整する。これにより、不平衡荷重の反力を分担し、その解消を行うことができる。
Step S01: One end 30a of the jig 30 is fixed at a specific height from the ground level of the utility pole 10.
Step S02: An upper support wire 15-1 is stretched from the top 10a of the utility pole 10 (wire bridging section: metal fittings that hold cables, etc.) to the other end 30b of the jig 30, and the jig 30 is fixed horizontally to the ground 50.
Step S03: The anchors 16 and the like are installed on the ground 50 around the utility pole 10.
Step S04: A lower support wire 15-2 is stretched perpendicularly from the other end 30b of the installed jig 30 to the ground surface 50 and fixed to an anchor 16 or the like.
Step S05: If the support wires connected to the jig 30 become loose, the effect of eliminating the unbalanced load will be reduced, so the tension of the support wires is adjusted. This allows the reaction force of the unbalanced load to be shared and eliminated.
次に、ステップＳ０６について説明する。電柱にかかる不平衡荷重の大きさにより治具３０の長さを調整する。ステップＳ０６は次の手順で行う。
（手順１）電柱１０に掛かる不平衡荷重を計算すること、
（手順２）治具３０の長手方向の長さと上部支線１５－１で生じさせる載荷量との関係を取得しておくこと、
（手順３）前記関係から前記不平衡荷重を解消する治具３０の前記長さを見出すこと、及び
（手順４）電柱１０に取り付けた治具３０の前記長さを前記関係から見出した前記長さに設定すること。
Next, step S06 will be described. The length of the jig 30 is adjusted depending on the magnitude of the unbalanced load acting on the utility pole. Step S06 is performed in the following manner.
(Step 1) Calculating the unbalanced load on the utility pole 10;
(Step 2) Obtain the relationship between the longitudinal length of the jig 30 and the load amount generated by the upper support wire 15-1.
(Step 3) Finding the length of the jig 30 that eliminates the unbalanced load from the relationship, and (Step 4) setting the length of the jig 30 attached to the utility pole 10 to the length found from the relationship.
まず、手順１を説明する。
電柱１０に敷設されているケーブルの無風時の張力Ｔは、下記（１）式により表される。
The tension T of the cable laid on the utility pole 10 when there is no wind is expressed by the following equation (1).
無風時に比べ、有風時の場合、電力線及び通信線が電柱に与える不平衡荷重は増加する。風により電力線及び通信線に発生する荷重は下記（２）式となる。
風圧荷重を加味した単位長さ辺りのケーブルの重量Ｗ１（Ｎ／ｍ）は下記（３）式となる。
次に手順２を説明する。
図５は、治具３０を設置した電柱１０において発生する力を説明する図である。この時、電柱１０に敷設されているケーブル１１が電柱１０に及ぼす力が不平衡荷重Ｆとなる。治具３０の取り付け位置の地面５０からの高さをｈ［ｍ］、上部支線１５－１の電柱１０への取り付け位置の地面５０からの高さをＨ［ｍ］、上部支線１５－１の取付角度をθ［°］、治具３０の長さをａ［ｍ］とする。
Next, step 2 will be described.
5 is a diagram illustrating the forces generated in utility pole 10 on which jig 30 is installed. At this time, the force exerted on utility pole 10 by cable 11 laid on utility pole 10 becomes unbalanced load F. Let h [m] be the height from ground 50 of the attachment position of jig 30, H [m] be the height from ground 50 of the attachment position of upper branch wire 15-1 to utility pole 10, θ [°] be the attachment angle of upper branch wire 15-1, and a [m] be the length of jig 30.
このとき、上部支線１５－１がＦ［ｋＮ］の張力により張られていると仮定した際、上部支線１５－１が分担できる載荷量Ｐ［ｋＮ］は下記（５）式で表せる。
［数５］
Ｐ＝Ｆｓｉｎθ （５）
また、角度θと長さａの関係は下記の（６）式のようになる。
［数６］
ａ＝（Ｈ－ｈ）ｔａｎθ （６）
例えば、治具３０をＨ＝６ｍ、ｈ＝３ｍの位置に取り付け、支線張力をＦ＝１０ｋＮで張った際に、治具３０の長さａ［ｍ］と支線が担保できる載荷量Ｐ［ｋＮ］との関係は図６のようになる。
In this case, assuming that the upper support wire 15-1 is tensioned with a tension of F [kN], the load P [kN] that can be borne by the upper support wire 15-1 can be expressed by the following equation (5).
[Equation 5]
P=Fsinθ (5)
The relationship between the angle θ and the length a is given by the following equation (6).
[Equation 6]
a=(H−h)tanθ (6)
For example, when the jig 30 is attached at a position of H = 6 m, h = 3 m and the tension of the support line is F = 10 kN, the relationship between the length a [m] of the jig 30 and the load capacity P [kN] that the support line can support is as shown in Figure 6.
図６は、支線角度θを０°～６０°まで変化させたときの、治具３０の長さａを横軸、上部支線１５－１が分担できる載荷量Ｐを縦軸としたときのａとＰの関係を説明するグラフである。グラフに示すように、治具３０の長さがａ＝０．１ｍ程度変わるだけで、上部支線１５－１が担保できる載荷量Ｐが０．１～０．３５ｋＮもの違いが生じる。 Figure 6 is a graph that explains the relationship between the length a of the jig 30 and the load capacity P that can be borne by the upper support wire 15-1 when the support wire angle θ is changed from 0° to 60°, with the horizontal axis representing the length a of the jig 30 and the vertical axis representing the load capacity P that can be borne by the upper support wire 15-1. As shown in the graph, a change in the length of the jig 30 of just a = 0.1 m results in a difference of 0.1 to 0.35 kN in the load capacity P that can be borne by the upper support wire 15-1.
次に手順３を説明する。
電柱の載荷量は電柱の種別に依るが、最小で２ｋＮ程度である。図６の関係のように治具３０の長さａにより載荷量に違い発生するので、治具３０の長さａを調整しないと１０％前後の不平衡荷重が残置されることとなる。そこで、図６の関係を基に、手順１で計算した不平衡荷重Ｔを打ち消す載荷量Ｐを発生させる治具３０の長さａを見出す。
Next, step 3 will be described.
The load on a utility pole depends on the type of utility pole, but is a minimum of about 2 kN. As shown in the relationship in Figure 6, the load varies depending on the length a of the jig 30, so if the length a of the jig 30 is not adjusted, an unbalanced load of about 10% will remain. Therefore, based on the relationship in Figure 6, we find the length a of the jig 30 that generates a load P that cancels out the unbalanced load T calculated in step 1.
最後に手順４を行う。手順３で見出した長さａとなるように治具３０の伸縮機構３４を調整する。 Finally, perform step 4. Adjust the extension mechanism 34 of the jig 30 so that it reaches the length a found in step 3.
なお、上記に示したとおり、伸縮機構３４には、１０％前後の不平衡荷重を解消するために１０ｃｍオーダーで治具３０の長さａを調整できることが必要である。このように、電柱１０に生じる不平衡荷重Ｔを適切に解消するために、治具３０には、長さａを柔軟に調整できる機能が必要である。As mentioned above, the telescopic mechanism 34 must be able to adjust the length a of the jig 30 on the order of 10 cm in order to eliminate unbalanced loads of around 10%. Thus, in order to properly eliminate the unbalanced load T that occurs on the utility pole 10, the jig 30 must have the ability to flexibly adjust the length a.
１０：電柱
１０ａ：頂上部
１５：支線
１５－１：上部支線
１５－２：下部支線
１６：アンカ
２０：家屋
３０：治具
３０ａ：一端
３０ｂ：他端
３１：第１部材
３２：第２部材
３３：バンド
３４：伸縮機構
５０：地面
10: Utility pole 10a: Top portion 15: Support line 15-1: Upper support line 15-2: Lower support line 16: Anchor 20: House 30: Jig 30a: One end 30b: Other end 31: First member 32: Second member 33: Band 34: Telescopic mechanism 50: Ground
Claims (2)
他端に、前記電柱の頂上部と接続する上部支線を保持する第１部材と、前記電柱と平行に地面と接続する下部支線を保持する第２部材と、長手方向の長さを可変とする伸縮機構と、を備えることを特徴とする治具。 A rod-shaped jig having one end attached to the surface of the utility pole so as to be perpendicular to the utility pole,
The jig is characterized by having at its other end a first member that holds an upper branch wire that connects to the top of the utility pole, a second member that holds a lower branch wire that connects to the ground parallel to the utility pole, and an extension mechanism that allows the longitudinal length to be changed .
前記治具の他端と前記電柱の頂上部とを上部支線で接続すること、及び
下部支線が前記電柱と平行となるように前記治具の他端と地面とを前記下部支線で接続すること、
を行う敷設方法であって、
前記治具は長手方向の長さを可変とする伸縮機構を備えており、
前記電柱に掛かる不平衡荷重を計算すること、
前記治具の長手方向の長さと前記上部支線で生じさせる載荷量との関係を取得しておくこと、
前記関係から前記不平衡荷重を解消する前記治具の前記長さを見出すこと、及び
前記伸縮機構を利用し、前記電柱に取り付けた前記治具の前記長さを前記関係から見出した前記長さに設定すること
をさらに行うことを特徴とする敷設方法。 Attaching one end of a rod-shaped jig to a surface of the utility pole so that the jig is perpendicular to the utility pole;
Connecting the other end of the jig to the top of the utility pole with an upper support wire, and connecting the other end of the jig to the ground with a lower support wire so that the lower support wire is parallel to the utility pole.
A laying method for performing
The jig has an extension mechanism that changes the length in the longitudinal direction,
calculating an unbalanced load on the utility pole;
Obtaining a relationship between the longitudinal length of the jig and the load amount generated by the upper support line;
finding the length of the fixture that eliminates the unbalanced load from the relationship; and
Using the telescopic mechanism, the length of the jig attached to the utility pole is set to the length found from the relationship.
The laying method further comprises the steps of :
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2021/032081 WO2023032066A1 (en) | 2021-09-01 | 2021-09-01 | Jig and laying method |
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| Publication Number | Publication Date |
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| JPWO2023032066A1 JPWO2023032066A1 (en) | 2023-03-09 |
| JP7750293B2 true JP7750293B2 (en) | 2025-10-07 |
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| Country | Link |
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| US (1) | US20240352758A1 (en) |
| JP (1) | JP7750293B2 (en) |
| WO (1) | WO2023032066A1 (en) |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1765823A (en) * | 1928-04-05 | 1930-06-24 | Brown Co | Wire guard |
| JPS4939865Y1 (en) * | 1969-09-01 | 1974-11-01 | ||
| US4038997A (en) * | 1975-09-04 | 1977-08-02 | John Robert Smith | Tent support pole with detachable strut and rib means |
| US3999340A (en) * | 1975-10-24 | 1976-12-28 | Virginia Plastics Company | Insulating cover and clamp for guy wires or covers |
| US4638611A (en) * | 1986-01-06 | 1987-01-27 | Vaughn Charles R | Guy-wire guard assembly and fastening systems therefor |
| US5083395A (en) * | 1991-05-02 | 1992-01-28 | Daniels Angela F | Crab cage and pole apparatus |
| US5310151A (en) * | 1993-04-12 | 1994-05-10 | Engel Stephen J | Lantern hanger device |
| US5769372A (en) * | 1996-05-02 | 1998-06-23 | Klawhorn Industries Inc. | Hunting weapon holder |
| US6059240A (en) * | 1998-05-27 | 2000-05-09 | Gorsuch; Timothy M. | Bow support |
| US6334596B1 (en) * | 1999-06-18 | 2002-01-01 | Boyd K. Temple | Sign support system |
| US6202964B1 (en) * | 1999-06-28 | 2001-03-20 | Dalbert Thornhill | Multi-purpose hanger |
| US6412736B1 (en) * | 2000-11-08 | 2002-07-02 | Marie Zaragoza | Collapsible pinata hoist |
| US6726163B2 (en) * | 2001-08-27 | 2004-04-27 | William M. Eppard | Hunter's shooting rest and method of using same |
| US6923141B1 (en) * | 2004-02-02 | 2005-08-02 | Robert A. Staats | Flag support assembly |
| US20050199769A1 (en) * | 2004-03-09 | 2005-09-15 | Rudder Benito V. | Multi-axes adjustable support |
| US20080093519A1 (en) * | 2006-10-18 | 2008-04-24 | Olson Steven P | Hanger apparatus |
| US20080224017A1 (en) * | 2007-03-15 | 2008-09-18 | Wayne Gary Woller | Golf cart umbrella holder |
| US8302922B1 (en) * | 2010-09-07 | 2012-11-06 | Kevin Robinson | Camp lantern tree stand |
| US9161526B2 (en) * | 2013-03-12 | 2015-10-20 | Jerry Lynn NIPPER | Telescoping boom hoist system |
| US8915475B2 (en) * | 2013-03-15 | 2014-12-23 | Jeffrey Bryan | Adjustable mailbox post |
| US9345941B1 (en) * | 2015-02-09 | 2016-05-24 | Manuel Celedon | Piñata pole support assembly |
| US10071889B1 (en) * | 2017-06-05 | 2018-09-11 | Gerardo Lopez | Piñata hoisting device |
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| US20240352758A1 (en) | 2024-10-24 |
| WO2023032066A1 (en) | 2023-03-09 |
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