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JP4951402B2 - Method for forming the sword knitting part of the safety belt - Google Patents
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JP4951402B2 - Method for forming the sword knitting part of the safety belt - Google Patents

Method for forming the sword knitting part of the safety belt Download PDF

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JP4951402B2
JP4951402B2 JP2007119245A JP2007119245A JP4951402B2 JP 4951402 B2 JP4951402 B2 JP 4951402B2 JP 2007119245 A JP2007119245 A JP 2007119245A JP 2007119245 A JP2007119245 A JP 2007119245A JP 4951402 B2 JP4951402 B2 JP 4951402B2
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sword
rope
synthetic resin
end portion
knitting
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JP2008274483A (en
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和広 山北
智昭 林田
博志 中井
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Fujii Denko Co Ltd
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Description

本願は、高所作業者が墜落防止のために使用する柱上安全帯に連結するランヤードのロープさつま編み部の端末固定方法に関するものである。   The present application relates to a method for fixing a terminal of a rope sword knitting portion of a lanyard that is connected to a safety belt on a pole used by an aerial worker to prevent a fall.

以前より電気工事作業等の高所では、作業者の墜落防止のために、腰部に安全帯を装着し、該安全帯の連結環間にランヤードを連結し、電柱での作業時あるいは昇降時には電柱に回し掛けしてU字つり状態で使用する。
また、鉄塔昇降時には、鉄塔主柱に添設されたレールに昇降用安全器が嵌着され、その昇降用安全器の連結環にランヤードを挿通し、作業者と連結して使用する。
In high places such as electrical construction work, a safety belt is attached to the waist to prevent the worker from falling, and a lanyard is connected between the connecting rings of the safety belt. Turn it over to use it in a U-shaped suspended state.
Further, when the tower is lifted, a lifting safety device is fitted to a rail attached to the tower main pillar, and a lanyard is inserted into a connecting ring of the lifting safety device to be connected to an operator.

前記の電気工事作業時の電柱に回し掛け(U字つり使用)状態(図3)では、 伸縮調節器3の連結フックを作業者が腰部に装着した安全帯の一方の角型形状の連結環に係止し、電柱Pに回し掛けし、フック2を片方のD型形状の連結環に係止し、U字つり使用状態でステップボルトをかわしながら電柱昇降を行い、この時に手足を滑らせて落下したならば、U字つり状のロープが、下段のステップボルトに係止し、1ステップボルト間の落下で留まり墜落を阻止できるものであり、ロープさつま編み部は、U字の平行部に位置するため構造物に接触することはほとんど無く何のトラブルも発生することはなかった。   In the state of hanging around the utility pole during the electrical work (using U-shaped suspension) (FIG. 3), one of the square-shaped connecting rings of the safety belt in which the operator attaches the connecting hook of the expansion / contraction adjuster 3 to the waist. The hook 2 is locked to one of the D-shaped connecting rings, and the utility pole is raised and lowered while the step bolt is being used while using the U-shaped suspension. If it falls, the U-shaped rope is locked to the lower step bolt and can be stopped by dropping between the 1 step bolts, and the rope sword knitting part is a U-shaped parallel part. Therefore, there was almost no contact with the structure and no trouble occurred.

ところが、図4のように、鉄塔昇降時に作業者の墜落防止のために、主柱に添設されたレールRに昇降用安全器Sを嵌着し、該昇降用安全器Sの連結環にランヤード1を挿通する場合に、作業者との距離が近いために、フック際のさつま編み部6が連結環に接触することとなり、作業者が昇降時に左右に振られることにより、さつま編み部6が連結環によって扱かれ、さつま編み部6が弛みストランド5が抜けることがあり、重大事故につながる危険性がでてきた。   However, as shown in FIG. 4, in order to prevent the worker from falling when the tower is raised and lowered, a lifting safety device S is fitted to the rail R attached to the main pillar, and the lifting safety device S is connected to the connecting ring. When the lanyard 1 is inserted, the distance between the operator and the worker is short, so the hooked portion 6 comes into contact with the connecting ring. Is handled by the connecting ring, the sag knitting portion 6 may loosen and the strand 5 may come off, leading to a risk of a serious accident.

よって、特開2006−336156号公報で開示したものがある。
このさつま編み部は、ストランド端末にスリーブを嵌合し、そのスリーブから突出する端末の加熱溶融によってスリーブの内径より大径の溶融結束部を設けたものである。また、リング状の結束具をロープ本体に嵌合し、該リングに設けたストランド挿通孔に各ストランドを挿通するものであるが、大きくて邪魔になり使用しづらいものである。
また、これらは、各ストランド3箇所を別々に加工する必要がある。
特開2006−336156号
Therefore, there is one disclosed in Japanese Patent Application Laid-Open No. 2006-336156.
This sword knitting portion is obtained by fitting a sleeve to a strand end and providing a melt-binding portion having a diameter larger than the inner diameter of the sleeve by heating and melting the end protruding from the sleeve. Further, a ring-shaped binding tool is fitted into the rope body, and each strand is inserted into a strand insertion hole provided in the ring, but it is large and obstructive to use.
Moreover, these need to process three places of each strand separately.
JP 2006-336156 A

よって、U字つりされた状態で昇降すると、互い違いにステップに足をかけることにより、身体が左右に移動(ずれ動き)その都度、ロープも左右に動き、連結環の角部で扱かれるものである。
何度もさつま編み部6が扱かれるうちに、さつま編み部6が弛んできてストランド5が抜け、重大事故に発展することが考えられるものである。
Thus, when lifting a state of being U-shaped hanging, by subjecting the feet to alternately step, the body is moved to the left and right (shift motion), each time, the rope also moves left and right, it is squeezed in a corner of the connecting ring Is.
It can be considered that while the sword knitting part 6 is handled many times, the sag knitting part 6 is loosened and the strands 5 come off, resulting in a serious accident.

本願は、さつま編み部6より突出した各ストランド5の端末部をロープ4に添わし、その端末部全周を合成樹脂7で一括固定被覆するものである。   In the present application, the end portion of each strand 5 protruding from the sword knitting portion 6 is attached to the rope 4, and the entire circumference of the end portion is collectively fixed and covered with the synthetic resin 7.

以上のように、さつま編み部6の端末部を合成樹脂7で包み込むことにより、さつま編み部6に繰返し扱きが加わることがない。また、さつま編み部6に扱きが加わったとしてもストランド5の端末部が抜けることがなく、重大事故につながることがなくなる。   As described above, by wrapping the terminal portion of the sword knitting portion 6 with the synthetic resin 7, the sword knitting portion 6 is not repeatedly handled. Moreover, even if handling is added to the satsuma knitting part 6, the terminal part of the strand 5 will not come out, and it will not lead to a serious accident.

また、合成樹脂7による一括固定被覆工程は、ランヤード1完成後でも、フック2を取付けた段階でも行えるので、作業の進捗状況に応じて効率のよい加工が可能である。   Moreover, since the batch fixing covering process with the synthetic resin 7 can be performed even after the lanyard 1 is completed or at the stage where the hook 2 is attached, efficient processing is possible depending on the progress of the work.

また、本願は、一箇所を一度に短時間で加工できるため、コストも低く抑えられる。また、墜落防止用安全帯に用いる八つ打ちロープの場合にも同じように加工することができる。   Moreover, since this application can process one place for a short time at a time, cost can also be suppressed low. The same process can be applied to an eight-strike rope used for a safety belt for preventing fall.

本願の実施例を詳記すると、
図1に示すように、フック取付側のさつま編み部6は、三つ打ちロープ4の端部を折り返し、該端部を解してさつま編みによるさつま編み部6を形成し、該さつま編み部6より突出した各ストランド5の端末部をロープ4に添わし、該端末部全体を合成樹脂7によって一括固定被覆したものである。
Detailed examples of the present application:
As shown in FIG. 1, the hook knitting portion 6 on the hook attachment side is folded back at the end of the three-pipe rope 4, and the end portion is unwound to form the sword knitting portion 6. The end portion of each strand 5 protruding from 6 is attached to the rope 4, and the entire end portion is collectively fixed and covered with the synthetic resin 7.

合成樹脂7による一括固定被覆の工程は、従来通りロープ4の端部を折り返し、さつま編み加工を施し、さつま編み部6より突出した各ストランド5の端末部をロープ4に添わし、セロハンテープで仮止めを行う。続いて、合成樹脂製のボール状のカバーをロープ端末部に挿通配置し、ホットメルト接着剤という合成樹脂7を注入する。温度が下がれば硬化し、強力な接着力を発揮するものである。   The process of batch fixing covering with the synthetic resin 7 is as follows: the end of the rope 4 is folded back, the sword knitting process is performed, the ends of each strand 5 protruding from the sack knitting part 6 are attached to the rope 4, and the cellophane tape Temporarily fix. Subsequently, a synthetic resin ball-shaped cover is inserted and disposed in the rope end portion, and a synthetic resin 7 called hot melt adhesive is injected. When the temperature is lowered, it hardens and exhibits a strong adhesive force.

また、合成樹脂7による一括固定被覆の工程は、従来通りロープ4の端部を折り返し、さつま編み加工を施し、さつま編み部6より突出した各ストランド5の端末部をロープ4に添わし、セロハンテープで仮止めを行う。続いて、金型にセッティングし、ホットメルト接着剤という合成樹脂7を注入する。
金型にセッティングすれば、ストランド5の端末部は金型の中央部に位置し、合成樹脂内でさつま編み部が偏ることはなく、均等に被覆することができる。













In addition, the process of covering and fixing with the synthetic resin 7 is performed by folding the end of the rope 4 as usual, applying the sword knitting process, attaching the end of each strand 5 protruding from the sack knitting part 6 to the rope 4, Temporarily fix with tape. Then, it sets to a metal mold | die and inject | pours the synthetic resin 7 called a hot-melt-adhesive.
If set in the mold, the end portion of the strand 5 is located at the center of the mold, and the sword knitting portion is not biased in the synthetic resin 7 and can be coated uniformly.













ホットメルト接着剤は、ろうそくのようなもので、固形樹脂でできており熱すればドロっと溶け、冷えれば即接着力が出るものです。
ポリウレタン系の未硬化樹脂を主成分とし、加熱溶解の後、空気中の水分(湿気)と反応し、硬化します。一旦、反応が終了してしまえば強力な接着力を発揮します。
また、特長として、引火の心配のある有機溶剤は一切含まない不燃性の接着剤であり、毒性もなく、食品の容器やシール材にも使用されるもので、環境に良いものです。
ホットメルト接着剤は、ナイロンロープの溶融点より低い温度で溶融し、ナイロンロープに影響を与えず固定被覆が可能であります。
また、粘度もドロっとしているので、三つ打ちロープのストランドと合成樹脂製のカバーとの隙間より出ることがなく加工性が良いものです。
Hot melt adhesives are like candles and are made of solid resin that melts drastically when heated and instantly produces adhesive strength when cooled.
The main component is polyurethane-based uncured resin. After heating and melting, it reacts with moisture in the air (humidity) and cures. Once the reaction is complete, it will exhibit strong adhesion.
In addition, as a feature, it is a non-flammable adhesive that does not contain any flammable organic solvents, is non-toxic, and is used for food containers and sealing materials.
Hot melt adhesive melts at a temperature lower than the melting point of the nylon rope and can be fixedly coated without affecting the nylon rope.
In addition, since the viscosity is also drastic, the processability is good because it does not come out from the gap between the strand of the three-strand rope and the cover made of synthetic resin.

図5は、標準的なランヤード1を示すもので、所定長さのロープ4の一端にフック2を挿通して折り返し、端部を解してさつま編みによる取付けを行い、環8・伸縮調節器3を挿通し、他端部は伸縮調節器3の抜け止めとして端部をさつま編みしたものであり、合成樹脂7の一括固定被覆工程は、ランヤードの完成後に行うこともできるし、フック2を取り付けた段階で行うこともできる。
よって、作業の進捗状況に応じて効率の良い加工が行える。
FIG. 5 shows a standard lanyard 1. A hook 2 is inserted into one end of a rope 4 having a predetermined length and folded back. 3, and the other end is knitted with an end to prevent the expansion / contraction adjuster 3 from being pulled out. The batch fixing covering process of the synthetic resin 7 can be performed after the lanyard is completed. It can also be done at the stage of attachment.
Therefore, efficient processing can be performed according to the progress of the work.

図5のランヤードを用いて、図4のような昇降用安全器Sの連結環に挿通して使用した場合は、さつま編み部6の合成樹脂7玉部分の段差により、連結環の縁で留まり、扱かれることはない。また、さつま編み部6を連結環の縁で扱かれたとしても、ストランド5の端末部が合成樹脂7で一括固定被覆されているため、さつま編み部6は弛むことなく端末部が抜けるようなことはない。   When the lanyard of FIG. 5 is used by being inserted through the connecting ring of the lifting safety device S as shown in FIG. 4, it stays at the edge of the connecting ring due to the step of the synthetic resin 7 ball portion of the sword knitting part 6. , Never handled. Even if the sword knitting portion 6 is handled by the edge of the connecting ring, the end portion of the strand 5 is covered and fixed with the synthetic resin 7 at a time, so that the sag knitting portion 6 comes out without loosening. There is nothing.

本願端末部一括固定方法の正面図。The front view of this-application terminal part package fixing method. 本願端末部一括固定方法の底面図。The bottom view of this application terminal part package fixing method. U字つり使用状態図。U-shaped use state diagram. 昇降用安全器使用状態図。Elevator use state diagram. 本願端末部一括固定方法によるランヤード正面図。The lanyard front view by the terminal part batch fixing method of the present application. 従来のさつま編み部の正面図。The front view of the conventional Satsuma knitting part.

符号の説明Explanation of symbols

1 ランヤード
2 フック
3 伸縮調節器
4 ロープ
5 ストランド
6 さつま編み部
7 合成樹脂
8 環
P 電柱
R レール
S 昇降用安全器
DESCRIPTION OF SYMBOLS 1 Lanyard 2 Hook 3 Expansion / contraction regulator 4 Rope 5 Strand 6 Satsuma knitting part 7 Synthetic resin 8 Ring P Electric pole R Rail S Lifting safety device

Claims (2)

ロープ4の端部を折り返し、該端部を解してさつま編みによるさつま編み部6を形成し、該さつま編み部6より突出した各ストランド5の端末部をロープ4に添わし、該端末部全体を合成樹脂7によって一括固定被覆するさつま編み部の端末部形成において、
該さつま編み部の端末部に合成樹脂製のカバーを挿通し、該カバー内に合成樹脂7を充填して一括固定することを特徴とする安全帯ロープのさつま編み部の形成方法。
The end portion of the rope 4 is folded back, the end portion is unwound to form a sword knitted portion 6, and the end portion of each strand 5 protruding from the sword knitted portion 6 is attached to the rope 4, and the end portion In the formation of the terminal portion of the sword knitting portion, the whole of which is fixedly covered with the synthetic resin 7 ,
A method for forming a sword knitted portion of a safety belt rope, wherein a cover made of synthetic resin is inserted into a terminal portion of the sword knitted portion, and the synthetic resin 7 is filled into the cover and fixed together.
ロープ4の端部を折り返し、該端部を解してさつま編みによるさつま編み部6を形成し、該さつま編み部6より突出した各ストランド5の端末部をロープ4に添わし、該端末部全体を合成樹脂7によって一括固定被覆するさつま編み部の端末部形成において、
さつま編み部の端末部を金型内に配置し、該金型内に合成樹脂を充填して一括固定することを特徴とする安全帯ロープのさつま編み部の形成方法
The end portion of the rope 4 is folded back, the end portion is unwound to form a sword knitted portion 6, and the end portion of each strand 5 protruding from the sword knitted portion 6 is attached to the rope 4, and the end portion In the formation of the terminal portion of the sword knitting portion, the whole of which is fixedly covered with the synthetic resin 7,
The Satsuma terminal portion of the knitted part is placed in a mold, the method of forming the Satsuma knitting portion of the safety belt rope characterized in that collectively fixed by filling synthetic resin 7 in the mold.
JP2007119245A 2007-04-27 2007-04-27 Method for forming the sword knitting part of the safety belt Active JP4951402B2 (en)

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JP5517259B2 (en) * 2010-12-13 2014-06-11 ユニチカ株式会社 Connecting rope or hanging rope
WO2022120650A1 (en) * 2020-12-09 2022-06-16 李桂英 Novel special fire-resistant rope

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JPS62152755U (en) * 1986-03-20 1987-09-28
JPH06136676A (en) * 1992-10-23 1994-05-17 Zeon Kasei Co Ltd Wire rope having satsuma @(3754/24)connection method) inserting part covered with resin and its packaging method
JP2002360719A (en) * 2001-06-08 2002-12-17 Fujii Denko Co Ltd Safety belt for clean room and fall prevention article
JP2003062099A (en) * 2001-08-28 2003-03-04 Fujii Denko Co Ltd Method of presentation of manufacture years of safety belt
JP2006336156A (en) * 2005-06-02 2006-12-14 Sanko Industries Co Ltd Fiber rope

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