1237080 (1) 玖、發明說明 【發明所屬之技術領域】 本發明主要是關於適合作爲電梯或吊重機械等之滑動 索使用的披覆型鋼索。 【先前技術】 以電梯或吊車作爲代表之吊重機械所採用的滑動索， 由於一邊經由槽輪（Sheave)形成移動的同時，一邊形成 捲取’因此作用於整體鋼索的張力及彎曲形成極度嚴苛的 條件。 傳統上，上述滑動索是採用如JIS.G.3525及3546 等所規定’在由纖維或鋼股（steel strand) '鋼索所製成 的芯索的外周配置複數條側股所撚合而成的結構。 但是’在上述的結構中，容易在芯索與側股上產生高 面壓’並且’鋼索因槽輪形成彎曲而使芯索與側股產生摩 擦。一旦因上述的原因使芯索磨損而導致鋼索的直徑縮減 時’將大量增加鄰接之側股之間的面壓。其結果將分別導 致構成芯索與側股之線材產生斷線的問題。 對此，則是採用在芯索與側股間夾界著熱可塑性樹脂 層的滑動索作爲對策。根據該習知技術，可有效防止芯索 與側股之間形成金屬接觸，卻難以使各側股之間保持適當 的間隔。因爲上述緣故，各側股容易互相接觸而發生摩擦 。此外，由於芯索側股長時間形成金屬接觸並互相滑動， 將使硬度較軟的芯索產生磨損，而衍生出花費大量時間及 -5- 1237080 (2) 手續來更換高價芯索的問題。而，當爲了降低磨損而塗佈 油時，將改變槽輪與鋼索之間的摩擦係數，而使槽輪與鋼 索之間打滑導致槽輪的轉動無法正確地傳達至鋼索。其結 果將造成連結於鋼索的物體（譬如電梯車箱，吊重物等） 之位置控制的準確度下降、或者必須採用經特殊溝槽加工 之槽輪的問體產生。 【發明內容】 本發明正是爲了解決上述問題所發展出的發明，其目 的在於：提供一種可防止因芯索與外側股之接觸所產生的 磨損、和因外側股之間的接觸所產生的磨損、及因槽輪與 外側股之金屬接觸所產生的磨損，並能實現槽輪與鋼索整 體間的良好摩擦接觸（驅動力傳遞），且容易製作的披覆 型鋼索。 爲了達成上述目的，本發明的披覆型鋼索是具有芯索 、和配置於該芯索外周之撚合而成的複數條側股、及覆蓋 於側股外周之披覆樹脂的披覆型鋼索，其特徵爲：構成前 述各側股之複數條撚合線狀體中，至少有一條是由外徑大 於其他線狀體的樹脂線狀體所構成，藉由前述樹脂線狀體 存在，可分別在前述各側股與芯索之間、和互相鄰接的各 側股之間形成間隙，並在該間隙內塡滿外層披覆用的樹脂 〇 詳細來說，側股具有由樹脂線狀體以外之線狀體所構 成的外接圓、和由樹脂線狀體所構成的較大外接圓，藉由 -6 - 1237080 (3) 前述樹脂線狀體所構成的外接圓可使各側股之間形成相同 大小的間隙，並同時藉由外接圓使各側股與芯索之間形成 相同大小的間隙。 根據上述的結構，由於各側股的外層至少具有一條外 徑較粗的樹脂線狀體，當在芯索的外周配置側股並加以撚 合的狀態下，各側股的樹脂線狀體將與相鄰的側股形成局 部的接觸，並同時與芯索形成局部的接觸。由於樹脂線狀 體以外的線狀體外徑較細，可確實地在相鄰的側股之間形 成均等的間隙，而側股與芯索之間也能確實地形成均等的 間隙。 因此，外層樹脂並不僅披覆於繫結全部側股之外接圓 的外側，更滲透入相鄰的各側股之間、及側股與芯索之間 ，進而形成可掩埋位於芯索外周之側股間隙的三角形樹脂 層，該三角形樹脂層形成放射狀的延伸，並與外層樹脂形 成連結。 由於樹脂線狀體的存在而使各側股形成凹凸狀的不規 則剖面，且由於該樹脂線狀體的樹脂層與外層樹脂接著而 形成具有絕佳一致性的物品。 各側股之間、及側股與芯索之間的各樹脂層兼具間隔 件與緩衝材的功能。據此，無須塗油，便可防止芯索與外 側股間因接觸所產生的磨損、和相鄰的外側股間因接觸所 產生的磨損，並可在利用最外層的樹脂層防止槽輪與外側 股因金屬接觸而產生磨損的同時’實現槽輪與鋼索整體間 的良好驅動力傳遞關係。 1237080 (4) 本發明的披覆型鋼索是以下述製程所製成：準備複數 條金屬製線狀體、和一條以上之在中心具有補強線且外徑 較前述線狀體更大的樹脂線狀體，藉由將前述金屬製線狀 體及樹脂線狀體配置在中心線狀體或內層的外周加以撚合 ，製作成因樹脂線狀體而具有凸狀不規則剖面之側股的製 程；和將前述複數條側股配置於芯索的外周並對其整體加 以撚合而形成鋼索母材的製程；及令鋼索母材通過樹脂押 出機，而使熔融樹脂通過因樹脂線狀體而形成於各側股間 的間隙後壓入充塡於芯索與側股之間，並壓入充塡於各股 之間，進而形成厚度大於側股之外接圓的外層的製程。 根據上述的結構，由於披覆步驟可一次完成，且側股 在與芯索撚合之前並未預先披覆樹脂，因此在製作上具有 容易提高生產性的優點。 在各側股中採用2條以上的樹脂線狀體，並分別將該 樹脂線狀體配置在圓周上的分開位置，再藉由與其他線狀 體進行撚合而形成類似螺旋狀溝槽的誘導路徑。 根據上述的構造，由於具有2條以上的樹脂線狀體， 可增加避免相鄰側股間產生金屬接觸的接點，並在芯索與 側股之間、及各側股之間形成穩定均等的間隙，且由於在 粗樹脂線狀體間的圓周上形成螺旋狀的誘導溝，可使樹脂 順利地滲透充塡入芯索與側股、及各側股之間。 而，樹脂線狀體最好具備中心的補強線與披覆於補強 線外周的樹脂層，且其外徑爲其他線狀體的1 · 〇 1〜1.1倍 -8 - 1237080 (5) 根據i:述的樣態，由於樹脂線狀體具有較其他線狀體 大1 · 0 1〜1 . 1倍的外徑，因此在芯索與側股間、及各側股 間形成適合樹脂滲透之大小均等的間隙以防止金屬接觸的 產生。此外’由於各樹脂線狀體具有補強線，可確保側股 所需的強度。 而樹脂線狀體的樹脂層，最好是由與外層披覆用樹脂 相同的材質所形成。藉此，樹脂線狀體的樹脂可被充塡後 之外層披覆用樹脂的熱度軟化或熔融，進而形成接著力相 同的均衡接合狀態。 而芯索最好採用在芯索本體外周設有樹脂披覆層者。 藉此’可確實防止芯索與側股間產生接觸，並且可確實地 與滲入芯索與側股間的外層披覆用樹脂接合成一體化。 雖然本發明的其他實施形態及優點可由以下的詳細說 明中淸楚得知，但本案只要在具備基本特徵的前提下，並 不侷限於實施例所揭示的構成方式。該業者只要不逸脫本 發明技術思想及範圍，能有各種不同的設計變更及修正。 【實施方式】 以下，參考附圖說明本發明的實施例。 第1圖至第6圖是本發明之披覆型鋼索的第1實施形 態。 在第1、2圖中，1表示芯索，是在由母線或側股所 撚合構成之芯索本體la的外周上，設置合成樹脂披覆層 1 b所構成。雖然前述芯索本體〗a的構造並無特殊限制， -9- (6) 1237080 但在本實施形態中’是採用在中心線狀體1 ο 1的外周配置 6條側線狀體1 〇2所撚合而成的1 x7結構。 2表示配置在前述芯索1周圍的複數條（圖面中爲6 條）撚合後側股。3是將前述側股2包覆於內部所施加之 合成樹脂層的外層披覆（整體披覆），是以可掩埋相鄰各 側股2、2間隙、及各側股2與芯索丨之間隙的方式形成 充塡。 也就是說，3 0 0是指相鄰側股2、2間的充塡部分， 3〇1是側股2與芯索1間的充塡部分，3 02是包覆由各側 股2外徑所連結形成之外接圓D 3的圓筒狀外層部分，外 層30 2是藉由放射狀的充塡部分300與作爲內層的充塡部 分3 0 1形成一體化。充塡部分3 0 1則與芯索丨的合成樹脂 披覆層lb接合成一體化。 前述側股2，是由中心線狀體（中心構件）2 0 1與包 覆於外周的複數條側線狀體2 0 2、4所構成。如第4圖所 示地，在本實施形態中是形成在中心線狀體20 1的周圍配 置6條側線狀體撚合成1 χ7的結構。 前述側線狀體，是由金屬製線狀體2 0 2與1條以上（ 本實施形態爲2條）的樹脂線狀體4所構成，樹脂線狀體 4具有大於金屬製線狀體202的外徑。 則述線狀體2 0 1、2 0 2通常是採用鋼線。而前述芯索 本體1 a的中心線狀體1 〇 1的母材與側線狀體丨〇 2的母材 也採用鋼線。當需要高強度鋼索的場合中，是使用張力強 度240kg/cm2以上的鋼線。而前述鋼線是採用含炭量 1237080 (7〉 0.7 0 w t %以上的原料經拉伸加工所製得。鋼線表面含有如 鍍鋅、鑛鋅鋁合金的薄耐蝕披覆層。 樹脂線狀體4亦可全部由樹脂所構成。但由於構成股 線時需要具備強度構件的功能，最好如第3圖A ' B所示 ，形成在中心具有補強線4 a，並在其外周設有樹脂層4 b 的複合結構。樹脂層4b與補強線4a形成接合。上述的樹 脂線狀體4，可藉由使補強線4a通過熔融樹脂形成樹脂 附著後，去除多餘的部分或通過樹脂壓出機的模具來連續 獲得。 前述補強線4 a亦可如第3圖A所示地採用1條，或 可如第3圖B所示地採用複數條母線400撚合而成。雖然 補強線4a通常是採用鋼線，但亦可採用合成纖維取代。 當採用合成纖維時，最好是使用由芳香族聚醯纖維胺、超 高分子量聚乙烯、全芳香族聚酯等物中所選出的高強度低 伸縮性的纖維，將複數條上述纖維所構成的線收集成束， 該束可藉由形成平行或利用長的 （reed )撚合的方式製 作。 形成樹脂層4b的樹脂，可採用對聚氯化乙烯、尼龍 、聚酯、聚乙烯、聚丙烯及上述樹脂的共聚合物之類的補 強線4 a具有良好接著性者。但根據與外層樹脂3之樹脂 形成良好接著性的觀點來看，最好是採用與外層披覆3相 同或類似材質的熱可塑性樹脂。 而外層披覆3的樹脂，由於除了耐磨損性、耐候性、 柔軟性（耐應力裂解性）之外，最好是具有可調整與槽輪 -11 - 1237080 (8) 間摩擦係數之適度彈性的高摩擦係數者，譬如採用丙烯酸 酯樹脂、聚胺酯系樹脂、乙醚系聚胺酯彈性體。據此，樹 脂層4a也適合採用該高分子材料。芯索披覆層也適用 該樹脂。 前述樹脂線狀體4的線徑，必須爲其他線狀體2 〇 2之 線徑的1 0 1 %以上。在未達上述條件下作爲側股使用時， 將只能從線狀體所構成的外接圓處形成些微的突出，當撚 合成鋼索時，將無法形成有助於樹脂滲入相鄰側股間的所 需間隙。 而樹脂線狀體4的線徑上限爲線狀體2 0 2線徑的1 1 0 %左右。一旦大於1 1 〇 %時，將使線狀體2 0 2間難以收合 ’並上浮鬆動以致在相鄰的側股2、2之間形成過大的間 隙，這樣一來將導致每個單位剖面的鋼充塡率下降。 雖然樹脂層4 b與補強線4 a的線徑粗細可根據上述線 徑比選定，但由補強線4 a被作爲強度構件使用的觀點來 看，亦可採用與其他種類之線狀體202相同或適當的細徑 。而由強度均衡的關係、及減少所使用之線材種類以降低 成本的觀點考量，最好是採用與線狀體2 02相同者較佳。 當樹脂線狀體4爲複數條時，是配置在圓周上分離的 位置，最好是形成對稱的配置，並同時與其他的線狀體 202保持一定的間距形成撚合。 據此，如第4圖A所示地，樹脂線狀體4在撚合的 狀態下，沿著股線的長軸方向形成螺旋狀。如第4圖B所 示地，由於樹脂線狀體4的線徑較其他的線狀體202更大 1237080 (9) ，因此側股2形成樹脂線狀體4的外接圓D2圍繞著由一 般線狀體202所形成之外接圓D 1的狀態。 藉由將上述複數條側股2配置於芯索1的周圍加以撚 合便形成第5圖所示的鋼索母材A。而股線的撚合方向最 好與鋼索的撚合方向相反，舉例來說，當股線的撚合方向 爲S方向時，鋼索的撚合方向則爲Z方向。 而在各側股2、2之樹脂線狀體4圓周上的位置，可 形成如第5圖所示的任意位置。該位置亦可視鋼索製作的 便利性加以調整。 在上述的鋼索母材A中，可藉由螺旋狀之樹脂線狀 體4的外接圓D2，平均地在各側股2、2之間形成適當的 間隙S 1，同時在側股2與芯索1之間，亦可藉由螺旋狀 之樹脂線狀體4的外接圓D2，平均地形成適當的間隙S2 〇 在這樣的狀態下洗淨鋼索母材A，並在進行100°C左 右的預熱之後對整體施以外層披覆3。這樣的處理通常如 第6圖A所示地，是藉由令鋼索母材A通過可加壓押出 熔融樹脂3 0的押出機9之模具90的方式連續執行。 在押出上述披覆層之際，將如第6圖B所示地，熔融 樹脂3 0將被充塡壓入形成於前述各側股2、2之間的均等 間隙S 1，並充塡入與該間隙S 1連通之位於側股2與芯索 1間的間隙S2形成掩埋。 由第4圖A可淸楚得知，在粗徑的樹脂線狀體4、4 之間，形成有類似螺旋狀的誘導路徑。因此熔融樹脂3 0 -13- 1237080 (10) 可沿著該誘導路徑順暢確實地流入側股2與芯索1之間， 並充塡入各側股2之間。根據此一結構與增加相鄰側股間 之接觸點可安定間隙的觀點來看，最好具有2條以上之側 股2的樹脂線狀體4。 前所述地，位於各側股2、2之間的樹脂線狀體4係 被預先加熱，由於在這樣的狀態下與高溫的熔融樹脂3 0 接觸而被加熱，至少令樹脂層4的表面產生黏著性或熔融 ’在產生熔融的狀態下，該熔融樹脂也將通過間隙S 1與 S2形成滲透，並與芯索1的批覆層lb形成熔著。也就是 說’樹脂線狀體4將成爲披覆用熔融樹脂的一部分，由鋼 索內部進行樹脂的補給。 藉此，可如地2圖所示地，確實地分別在各側股2、 2間形成可掩埋其間隙之類似三角形的放射狀滲透樹脂層 3 〇〇 '和在側股2與芯索1之間形成連續的環狀滲透樹脂 層 301。 雖然熔融樹脂3 0最終將覆蓋側股2的整體，但由於 側股2內含粗徑的樹脂線狀體4導致接著面積變大且形成 具有凹凸的複雜剖面形狀，因此在這樣的狀態下樹脂層 4b將不會與熔融樹脂30產生接著地形成融著。據此，將 可提高側股2與圍繞著側股2所形成之圓筒狀外層3 0 2的 內側部分之間的接著力，進而增加抑制偏移的抗力。 此外，外層3 0 2能藉由形成於各側股2、2間之用來 掩埋其間隙的倒三角形放射狀滲透樹脂層3 〇 〇，和形成於 側股2與芯索1之間的環狀滲透樹脂層3 〇丨接合成一體。 -14- 1237080 (11) 當芯索1的樹脂層1 b採用與側股2之樹脂線狀體4 的樹脂及外層樹脂3相同的材質時，由於容易於加熱後融 著’且同一剖面內的物理性及化學性相同，故披覆層不易 因與槽輪間的摩擦力與剪斷力而產生破損、偏移的問題。 由於本發明在構成側股2外層的線狀體內摻入樹脂線 狀體4，而在各側股2、2間及側股2與芯索1間形成間 隙’因此無須事先對各側股進行樹脂披覆的加工，而是在 對鋼索整體進行披覆時，執行對側股的樹脂披覆。據此， 批覆加工只需一次便能完成，可提高生產性並降低成本。 此外，當預先對不同於本案所揭示之側股披覆樹脂， 並將其與披覆後的芯索撚合後，再對撚合而成的成品外周 披覆樹脂時，由於樹脂不易滲入具有圓筒狀披覆層的側股 與具有圓筒狀披覆層的芯索之間，以致形成空洞而有損及 側股與芯索間一體化之虞，而本發明正可解決此一疑慮。 而且由於本發明可提高鋼材的充塡率，故也能獲得良好的 強度。 一旦包覆於側股2外徑（外接圓D3 )外周之前述外 層3 02的厚度過薄，將因爲缺乏耐久性而減低磨損壽命。 一旦過厚，卻又損及作爲滑動索所必須的柔軟性，況且鋼 索外徑變粗將降低強度效率，故該厚度最好低於鋼索外徑 的1 / 5，舉例來說，通常爲0.3〜2.0 mm。 第7圖係顯示本發明的第2實施形態。在該實施形態 中，於構成側股2之外層的線狀體中具有3條樹脂線狀體 4，並將該3條樹脂線狀體4按相等的間隔配置。圖中只 -15- 1237080 (12) 對1條側股詳細標示其結構，其他的側股結構則省略標示 。由於其餘的部分皆與第1實施形態相同，因此相同的部 分則標示相同圖號並省略其說明。 在本發明中，並未特別限制芯索1的結構與側股2的 結構。第8〜1 2圖係顯示本發明其他的實施形態（第3實 施形態），芯索1的本體la是由7x7的鋼絲繩芯（IWRC )所構成，其外周設有樹脂披覆層1 b。 側股2是形成8 X S ( 1 7 + 2 )的結構。詳細來說，側 股2的中心構件，是由將9條細線狀體2 0 3配置於粗線狀 體201’外周的內層2a所形成，並在內層2a的外周配置7 條鋼製線狀體2 0 1與1條以上（圖面中爲2條）樹脂線狀 體4作爲外層進行撚合。樹脂線狀體4是配置在3條線狀 體與4條線狀體之間。樹脂線狀體4的構造、和與鋼線的 線徑比、和所使用的樹脂、和外層披覆的條件及作用由於 完全與第1實施形態相同，故說明部分也相同，在此不另 贅述。 第1 3圖是顯示使用3條樹脂線狀體4的範例，其中 樹脂線狀體4是隔者2條鋼線2 0 1形成配置。由於其他的 結構等與第1實施例相同’故在此不另做說明。 〔實施例〕 接下來製作1條符合本發明的披覆型鋼索。芯索1具 有在1x7結構之芯索本體la披覆乙醚系聚胺酯（簫氏硬 度D scale 90)的構造，其外徑爲3.0 nun。接下來在該芯 -16- 1237080 (13) 索的周圍配置6條〗x 7結構的側股並加以撚合。 各側股則是以6條線狀體作爲外層，其中4條爲鋼 而另2條爲樹脂線狀體。其中鋼線是採用線徑1 ·00 ηιηι 鋼線，而樹脂線狀體則是採用於線徑1 . 〇 〇 mm的鋼線上 押出機披覆乙醚系聚胺酯（蕭氏硬度D scale 90 )之線 爲1 · 1 mm者。將上述樹脂線狀體配置於鋼線之間，並以 mm的撚合節距朝s方向撚合後形成側股。 接著製作6條上述規格的側股，並將作好的側股配 於芯索的外周，再以8 0 nim的撚合節距朝Z方向撚合形 鋼索母材。 檢查鋼索母材後，在各側股之間形成〇 · 2 mm的均等 隙，並在芯索與側股之間形成0 · 1 irnn的間隙。 洗淨鋼索母材後，預熱至l〇〇°C，再利用押出機披 200 °C時熔融的乙醚系聚胺酯（蕭氏硬度D scale 90) 製成外層D 3厚度1 · 0腿1、外徑1 1 mm的披覆型鋼索。 經以顯微鏡觀察披覆型鋼索的切面後証實，披覆樹 充分地充塡入相鄰的各側股之間，並且充分地充塡入側 與芯索之間，而與外層樹脂形成一體化。 利用第1 4圖所示的夾具，對所製得的披覆型鋼索 行披覆3與鋼索母材A的反向拉伸、及披覆與鋼索的 著度測試。爲了有所比較，側股乃採用不使用樹脂線狀 且外層母線全數爲鋼線的繩索作爲對照組進行接著度的 試。其結果証實，相較於不採用樹脂線狀體的對照組， 發明鋼索的接著度提高約80%。利用顯微鏡測量樹脂 線 的 以 徑 3 0 置 成 間 覆 脂 股 進 接 體 測 本 充 -17- 1237080 (14) 塡率的結果証實’相較於未採用樹脂線狀體的對照組，樹 脂充塡率提高約6 5 %。 而以D (槽輪徑）/d(鋼索經）：2〇、安全率：1〇、 和使用圓溝槽輪的條件執行S彎曲測試，調查披覆樹脂發 生異常的次數。其結果爲：不使用樹脂線狀體的對照組在 第5 000次時發生披覆偏移，而本發明的鋼索即使經過 1 5 0000次也未發生異常。 當樹脂線狀體的數量變更爲1條時，相較於未使用樹 脂線狀體的對照組，披覆層與鋼索間的接著力提高約5 0 %。而鋼索內的樹脂充塡率當只有1條樹脂線狀體時增加 4〇%，當3條樹脂線狀體時則增加80。 而披覆樹脂發生異常的次數，在只有1條樹脂線狀體 的狀態下，即使經過1 0 0 0 0 0次也未發生異常。 〔產業上的利用性〕 雖然本發明適用於滑動索，但同樣適用於吊橋的吊索 、斜張橋的鋼纜、及拉繩之類的靜態索。在適用上述用途 的場合中，披覆樹脂並不只是包覆著側股，由於樹脂經由 各側股間充塡入芯索與側股之間堅固地接著成一體化，故 可避免披覆物與鋼索本體之間因鋼與樹脂的不同膨脹率所 衍生出的間隙，並能有效防治因水分（包括結露所造成者 )所引發的腐蝕。 【圖式簡單說明】 -18- 1237080 (15) 第1圖：爲顯示本發明披覆型鋼索的第1實施形態之 局部切開斜視圖。 第2圖：爲第1圖的放大剖面圖。 第3圖：A係顯示本發明所採用之樹脂線狀體的其中 一例之局部切開放大斜視圖。B係顯示本發明所採用之樹 脂線狀體的其他例之局部切開放大斜視圖。 第4圖：A爲第1實施形態中側股的放大斜視圖。b 爲第4A圖的剖面圖。 第5圖：爲顯示第1實施形態的鋼索在未披覆外層前 (鋼索母材）的剖面圖。 第6圖：A爲披覆外層的說明圖。B爲披覆過程中樹 脂之滲透狀態的示意說明圖。 第7圖：A爲顯示第2實施形態的鋼索在未披覆外層 前（鋼索母材）的剖面圖。B爲第2實施形態之鋼索的剖 面圖。 第8圖：爲顯示本發明披覆型鋼索的第3實施形態之 局部切開斜視圖。 第9圖：爲第8圖的放大剖面圖。 第1 〇圖：爲第3實施形態中側股的放大斜視圖。 第1 1圖：爲第3實施形態中側股的剖面圖。 第1 2圖：爲顯示第3實施形態的鋼索在未披覆外層 前（鋼索母材）的剖面圖。 第1 3圖：A爲顯示第4實施形態的鋼索在未披覆外 層前（鋼索母材）的剖面圖。B爲第4實施形態中側股的 •19- 1237080 (16) 放大剖面圖。 第1 4圖：爲本發明鋼索之測試夾具說明圖。 〔元件對照表〕 1 :芯索 la :芯索本體 1 b :合成樹脂披覆層（樹脂層） 2 :側股 2c :內層 3 :合成樹脂外層披覆 4 :樹脂線狀體 4a :補強線 4 b :樹脂層 9 :押出機 3 0 :熔融樹脂 90 :模具 1 0 1 :中心線狀體 102 :側線狀體 2 0 1 :中心線狀體 2 0 1 ’ ：粗中心線狀體 202 :金屬製線狀體 2 0 3 :細線狀體 3 0 0 :充塡部份（滲透樹脂層） 301 :充塡部份（滲透樹脂層） -20 1237080 (17) 3 0 2 :圓筒狀外層 4 0 0 :母線 A :鋼索母材 D 1 :外接圓 D2 :外接圓 D 3 :外接圓1237080 (1) 发明. Description of the invention [Technical field to which the invention belongs] The present invention mainly relates to a covered steel wire suitable for use as a sliding rope of an elevator or a crane. [Prior technology] The sliding ropes used by lifting machines represented by elevators or cranes are extremely tight due to the tension and bending of the entire steel ropes as they are wound while forming movements through sheaves. Harsh conditions. Traditionally, the above-mentioned sliding cable is formed by twisting and disposing a plurality of side strands on the outer periphery of a core cable made of a fiber or steel strand steel cable as specified in JIS.G.3525 and 3546. Structure. However, 'in the above-mentioned structure, it is easy to generate a high surface pressure on the core cable and the side strands' and' the steel cable causes friction between the core cable and the side strands due to the bending of the sheave. Once the diameter of the steel wire is reduced due to the wear of the core wire due to the above-mentioned reasons, the surface pressure between the adjacent side strands will be greatly increased. As a result, the wires constituting the core cable and the side strands are respectively broken. As a countermeasure, a sliding cable with a thermoplastic resin layer interposed between the core cable and the side strands is adopted as a countermeasure. According to this conventional technique, it is possible to effectively prevent metal contact between the core cord and the side strands, but it is difficult to maintain an appropriate interval between the side strands. Because of the above, the side strands easily contact each other and cause friction. In addition, because the core strands are in contact with each other for a long period of time and slide against each other, the relatively hard core strands will be worn out, resulting in a problem that takes a lot of time and procedures to replace high-priced core strands. However, when oil is applied to reduce wear, the coefficient of friction between the sheave and the cable is changed, and slipping between the sheave and the cable causes the rotation of the sheave to be incorrectly transmitted to the wire. As a result, the accuracy of the position control of objects connected to the wire rope (such as elevator boxes, hoisting weights, etc.) will be reduced, or the body of the grooved wheel with special groove processing must be used. [Summary of the Invention] The present invention was developed to solve the above-mentioned problems, and an object thereof is to provide a method for preventing abrasion caused by the contact between the core cord and the lateral strands, and prevention of contact between the lateral strands. Wear and wear caused by the metal contact between the sheave and the outer strand, and can achieve a good frictional contact (driving force transmission) between the sheave and the steel cable as a whole, and it is easy to make a coated steel cable. In order to achieve the above object, the coated steel wire of the present invention is a coated steel wire having a core wire, a plurality of side strands formed by twisting the core wire, and a covering resin covering the periphery of the side wire. It is characterized in that at least one of the plurality of twisted linear bodies constituting each of the side strands is made of a resin linear body having an outer diameter larger than that of other linear bodies. A gap is formed between each of the side strands and the core cord, and each of the side strands adjacent to each other, and the gap is filled with a resin for coating the outer layer. Specifically, the side strands have a resin linear body. The circumscribed circle formed by the other linear bodies and the larger circumscribed circle formed by the resin linear bodies can be obtained by using -6-1237080 (3) The circumscribed circle formed by the aforementioned resin linear bodies. A gap of the same size is formed between them, and at the same time, a gap of the same size is formed between each side strand and the core rope by the circumscribed circle. According to the above structure, since the outer layer of each side strand has at least one resin strand having a relatively large outer diameter, when the side strands are arranged on the outer periphery of the core cord and twisted, the resin strands of each side strand will be Local contact is made with the adjacent side strands and at the same time local contact is made with the core cord. Since the outer diameter of the linear body other than the resin linear body is relatively small, it is possible to form an equal gap between adjacent side strands, and to form an equal gap between the side strands and the core cord. Therefore, the outer layer of resin not only covers the outer side of the outer circle of all side strands, but also penetrates between adjacent side strands, and between the side strands and the core cable, thereby forming a land that can be buried in the periphery of the core cable. A triangular resin layer in the side strand gap. The triangular resin layer forms a radial extension and is connected to the outer resin. Due to the presence of the resin linear body, each side strand is formed into an irregular irregular cross section, and the resin layer of the resin linear body is bonded to the outer resin to form an article having excellent consistency. Each resin layer between the side strands and between the side strands and the core cable functions as a spacer and a buffer material. As a result, it is possible to prevent abrasion caused by the contact between the core cord and the outer strands and the abrasion caused by the contact between the adjacent outer strands without oiling, and to prevent the sheave and the outer strands by using the outermost resin layer. At the same time, the wear caused by metal contact 'at the same time realizes a good driving force transmission relationship between the sheave and the cable. 1237080 (4) The coated wire rope of the present invention is produced by the following process: preparing a plurality of metal linear bodies and one or more resin wires having a reinforcing wire in the center and having a larger outer diameter than the aforementioned linear bodies The shape is formed by twisting the metal linear body and the resin linear body on the outer periphery of the center linear body or the inner layer to form a side strand having a convex irregular cross section due to the resin linear body. ; And a process of disposing the aforementioned plurality of side strands on the outer periphery of the core cable and twisting the entirety thereof to form a steel cable base material; and passing the steel cable base material through a resin extruder to pass molten resin through the resin strand After the gap formed between the side strands is pressed and filled between the core rope and the side strands, and is pressed between the strands, the outer layer is formed to a thickness greater than the outer circle of the side strands. According to the above-mentioned structure, since the coating step can be completed at one time, and the side strands are not previously coated with resin before being twisted with the core cord, there is an advantage that it is easy to improve productivity in manufacturing. Two or more resin linear bodies are used in each side strand, and the resin linear bodies are respectively arranged at separated positions on the circumference, and then a spiral-like groove is formed by twisting with other linear bodies. Induction path. According to the above structure, since there are two or more resin linear bodies, it is possible to increase the number of contacts that avoid metal contact between the adjacent side strands, and to form a stable and even between the core cord and the side strands, and between the side strands. The gap and the spiral-shaped induction grooves are formed on the circumference between the thick resin linear bodies, so that the resin can smoothly penetrate and fill the core rope and the side strands, and between the side strands. In addition, the resin linear body preferably has a central reinforcing line and a resin layer covering the outer periphery of the reinforcing line, and its outer diameter is 1 · 〇1 to 1.1 times of other linear bodies -8-1237080 (5) according to i : As described above, because the resin linear body has an outer diameter that is 1 · 0 1 to 1.1 times larger than other linear bodies, an equal size suitable for resin penetration is formed between the core cord and the side strands and between the side strands. To prevent metal contact. In addition, since each resin linear body has a reinforcing line, the required strength of the side strands can be secured. The resin layer of the resin linear body is preferably formed of the same material as that of the resin for covering the outer layer. Thereby, the resin of the resin linear body can be softened or melted by the heat of the resin for coating the outer layer after being filled, thereby forming an equilibrium bonding state with the same adhesive force. The core cord is preferably one provided with a resin coating on the outer periphery of the core cord. By this, it is possible to surely prevent the core cord from coming into contact with the side strands, and it can be reliably integrated with the resin for covering the outer layer that penetrates between the core cord and the side strands. Although other embodiments and advantages of the present invention can be clearly understood from the following detailed description, the present invention is not limited to the structure disclosed in the embodiment as long as it has basic features. As long as the practitioner does not escape the technical idea and scope of the present invention, various design changes and modifications can be made. [Embodiment] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Figures 1 to 6 show the first embodiment of the coated steel cable of the present invention. In Figs. 1 and 2, reference numeral 1 denotes a core cord, which is formed by providing a synthetic resin coating layer 1b on the outer periphery of a core cord body la formed by twisting a bus bar or a side strand. Although the structure of the aforesaid core cable body a is not particularly limited, -9- (6) 1237080, but in this embodiment, 'the side linear body 1 ο 1 is used to arrange six side linear bodies 1 02 Twisted 1 x7 structure. Reference numeral 2 denotes a plurality of twisted strands (six in the drawing) arranged around the core cord 1. 3 is the outer covering (overall covering) of the synthetic resin layer applied on the inside of the aforementioned side strands 2 so as to bury the gap between adjacent side strands 2, 2 and each side strand 2 and the core cable 丨The gap way is filled. In other words, 3 0 0 refers to the filling part between the adjacent side strands 2 and 2, 3 0 1 is the filling part between the side strands 2 and the core cord 1, and 3 02 is the outer part covered by each side strand 2 The outer layer 302 is connected to form a cylindrical outer layer portion of the outer circle D 3. The outer layer 302 is integrated with the inner filling portion 301 through the radial filling portion 300. The filling part 301 is integrated with the synthetic resin coating layer lb of the core cable. The side strand 2 is composed of a central linear body (central member) 2 0 1 and a plurality of lateral linear bodies 2 0 2 and 4 covering the outer periphery. As shown in Fig. 4, in the present embodiment, a structure in which six side linear bodies are arranged around the center linear body 20 1 and twisted to form 1 x 7 is formed. The side linear body is composed of a metal linear body 202 and one or more resin linear bodies 4 (two in this embodiment), and the resin linear body 4 is larger than the metal linear body 202. Outer diameter. The linear bodies 2 0 1 and 2 2 are usually steel wires. In addition, the base material of the central linear body 101 of the core cord body 1a and the base material of the lateral linear body 101 are also steel wires. When high-strength steel cables are required, steel wires with a tensile strength of 240 kg / cm2 or more are used. The aforementioned steel wire is made by drawing a raw material with a carbon content of 1237080 (7> 0.7 0 wt% or more. The surface of the steel wire contains a thin corrosion-resistant coating layer such as galvanized or mineral zinc aluminum alloy. Resin linear The body 4 can also be entirely made of resin. However, since it is necessary to have the function of a strength member when forming the strand, it is best to form a reinforcing line 4a at the center as shown in Figure 3A'B and provide it on the outer periphery. The composite structure of the resin layer 4 b. The resin layer 4 b is joined to the reinforcing wire 4 a. The above-mentioned resin linear body 4 can be formed by attaching the reinforcing wire 4 a to the resin by melting the resin, and then removing the excess or extruding the resin. Continuously obtain the mold of the machine. The aforementioned reinforcing line 4a can also be used as shown in Fig. 3A, or can be twisted by using a plurality of bus bars 400 as shown in Fig. 3B. Although the reinforcing line 4a Steel wire is usually used, but synthetic fibers can also be used instead. When synthetic fibers are used, it is best to use a high one selected from aromatic polyfluorene fiber amines, ultra-high molecular weight polyethylene, and wholly aromatic polyesters. Multiple low-strength fibers The strands composed of the fibers are collected into a bundle, and the bundle can be produced by forming parallel or by long reed twisting. The resin forming the resin layer 4b can be made of polyvinyl chloride, nylon, polyester, Reinforcement wires 4a such as polyethylene, polypropylene, and copolymers of the above resins have good adhesion. However, from the viewpoint of forming good adhesion with the resin of the outer layer resin 3, it is preferable to use a coating with the outer layer. 3 The thermoplastic resin of the same or similar material. And the resin with the outer coating 3 is more suitable for adjusting and sheave -11 in addition to wear resistance, weather resistance, softness (stress crack resistance). -1237080 (8) High friction coefficient with moderate elasticity, such as acrylic resin, polyurethane resin, and ether polyurethane elastomer. According to this, the polymer layer 4a is also suitable for the polymer material. The coating is also suitable for this resin. The wire diameter of the aforementioned resin linear body 4 must be more than 101% of the wire diameter of other linear bodies 200. When it is used as a side strand under the above conditions, it will only be used Can from A slight protrusion is formed at the circumscribed circle formed by the shape body, and when twisting a synthetic cable, the required gap that helps the resin to penetrate between adjacent side strands cannot be formed. The upper limit of the wire diameter of the resin linear body 4 is a linear body. The wire diameter of 202 is about 110%. Once it is larger than 110%, it will make it difficult to collapse the linear bodies 202 and loosen up, so that the adjacent side strands 2 and 2 are too large. In this way, the steel filling rate of each unit section will be reduced. Although the diameter of the resin layer 4 b and the reinforcing wire 4 a can be selected according to the above diameter ratio, the reinforcing wire 4 a is used as the strength. From the viewpoint of the use of the member, the same or appropriate narrow diameter as that of the other type of linear body 202 may be adopted. From the viewpoint of the balance of strength and the reduction of the type of wire used to reduce costs, it is better to use the same as the linear body 202. When the resin linear bodies 4 are plural, they are arranged at positions separated from each other on the circumference, and it is preferable to form a symmetrical arrangement while maintaining a certain distance from the other linear bodies 202 to form a twist. Accordingly, as shown in Fig. 4A, the resin linear body 4 is formed in a spiral shape along the long axis direction of the strands in a twisted state. As shown in FIG. 4B, since the wire diameter of the resin linear body 4 is larger than the other linear bodies 202 1237080 (9), the circumscribed circle D2 of the side strand 2 forming the resin linear body 4 is surrounded by the general A state in which the linear body 202 forms an outer circle D 1. The plurality of side strands 2 are arranged around the core rope 1 and twisted to form the steel wire base material A shown in Fig. 5. The twist direction of the strand is preferably opposite to the twist direction of the cable. For example, when the twist direction of the strand is the S direction, the twist direction of the cable is the Z direction. On the circumference of the resin linear body 4 on each of the side strands 2 and 2, arbitrary positions as shown in Fig. 5 can be formed. This position can also be adjusted depending on the convenience of making the cable. In the above-mentioned steel wire base material A, an appropriate gap S 1 can be formed between each side strand 2 and 2 by the circumscribed circle D2 of the spiral resin linear body 4, and at the same time between the side strand 2 and the core Between the cables 1, an appropriate gap S2 can be formed evenly by the circumscribed circle D2 of the spiral resin linear body 4. In this state, the steel cable base material A is cleaned and subjected to a temperature of about 100 ° C. After preheating, apply the outer coating 3 to the whole. Such a process is generally performed continuously as shown in FIG. 6A by passing the wire rope base material A through a mold 90 of an extruder 9 capable of extruding molten resin 30 under pressure. When the coating layer is extruded, as shown in FIG. 6B, the molten resin 30 will be filled and pressed into the equal gap S 1 formed between the side strands 2 and 2 and filled. The gap S2 which is in communication with the gap S1 and is located between the side strand 2 and the core cord 1 forms a burial. It can be clearly seen from FIG. 4A that a spiral-like induction path is formed between the resin resin bodies 4 and 4 having a large diameter. Therefore, the molten resin 3 0 -13-1237080 (10) can smoothly and surely flow between the side strands 2 and the core cord 1 along the induction path, and be filled between the side strands 2. From the viewpoint of this structure and increasing the gap between the adjacent side strands to stabilize the gap, it is preferable that the resin linear body 4 has two or more side strands 2. As described above, the resin linear body 4 located between the side strands 2 and 2 is heated in advance, and is heated by contact with the high-temperature molten resin 30 in this state, so that at least the surface of the resin layer 4 Adhesion or melting 'In a state where melting occurs, the molten resin will also penetrate through the gaps S 1 and S 2 and form fusion with the coating layer 1 b of the core cord 1. That is, the resin linear body 4 will become a part of the molten resin for coating, and the resin will be replenished from the inside of the wire rope. As a result, as shown in the second figure, it is possible to form a triangular-shaped radial permeable resin layer 3 00 ′ which can bury the gap between each side strand 2 and 2 and side strand 2 and core cord 1 A continuous annular permeable resin layer 301 is formed therebetween. Although the molten resin 30 will eventually cover the entire side strand 2, the resin strand 4 having a large diameter in the side strand 2 leads to a larger bonding area and a complicated cross-sectional shape with unevenness. Therefore, the resin is in this state. The layer 4b will not form a subsequent adhesion with the molten resin 30. Accordingly, the adhesion force between the side strands 2 and the inner portion of the cylindrical outer layer 3 02 formed around the side strands 2 can be increased, thereby increasing the resistance against displacement. In addition, the outer layer 3 0 2 can be formed by inverting a triangular radial permeable resin layer 3 0 between the side strands 2 and 2 to bury the gap, and the ring formed between the side strands 2 and the core cord 1. The permeable resin layer 3 is connected to form a whole. -14- 1237080 (11) When the resin layer 1 b of the core cord 1 is made of the same material as the resin of the resin strand 4 of the side strand 2 and the resin 3 of the outer layer, it is easy to fuse after heating 'and within the same section The physical and chemical properties are the same, so the coating layer is not easy to be damaged or shifted due to the friction and shear force between the coating and the sheave. Because the present invention incorporates the resin linear body 4 into the linear body constituting the outer layer of the side strands 2 and forms a gap between each of the side strands 2 and 2 and between the side strands 2 and the core cord 1 ', it is not necessary to perform the side strands in advance In the resin coating process, the resin coating on the side strands is performed when the entire wire rope is covered. According to this, the coating process can be completed only once, which can improve productivity and reduce costs. In addition, when the side strand coating resin different from the one disclosed in the present case is previously twisted with the coated core cord, and then the outer periphery of the twisted finished product is coated with resin, it is difficult for the resin to penetrate into Between the side strands of the cylindrical coating layer and the core cord with the cylindrical coating layer, so that a cavity is formed, which may impair the integration between the side strands and the core cord, and the present invention can solve this doubt . In addition, since the filling rate of the steel can be increased by the present invention, good strength can also be obtained. If the thickness of the aforementioned outer layer 3 02 that covers the outer periphery of the side strand 2 (circle D3) is too thin, the wear life will be reduced due to lack of durability. Once it is too thick, it also impairs the flexibility required as a sliding cable, and the thickening of the outer diameter of the steel cable will reduce the strength efficiency. Therefore, the thickness is preferably less than 1/5 of the outer diameter of the steel cable. For example, it is usually 0.3. ~ 2.0 mm. Fig. 7 shows a second embodiment of the present invention. In this embodiment, three resin linear bodies 4 are provided in the linear bodies constituting the outer layer of the side strands 2, and the three resin linear bodies 4 are arranged at equal intervals. In the figure, only -15-1237080 (12) The structure of one side strand is marked in detail, and the other side strand structure is omitted. Since the remaining parts are the same as those of the first embodiment, the same parts are denoted by the same reference numerals and their descriptions are omitted. In the present invention, the structure of the core cord 1 and the structure of the side strands 2 are not particularly limited. Figures 8 to 12 show another embodiment (third embodiment) of the present invention. The body 1a of the core cord 1 is composed of a 7x7 steel wire core (IWRC), and a resin coating layer 1b is provided on the outer periphery. The side strand 2 has a structure forming 8 X S (1 7 + 2). Specifically, the center member of the side strand 2 is formed by an inner layer 2a in which nine thin linear bodies 203 are disposed on the outer periphery of the thick linear body 201 ', and seven steel members are disposed on the outer periphery of the inner layer 2a. The linear body 201 and one or more (two in the drawing) the resin linear body 4 are twisted as an outer layer. The resin linear body 4 is arranged between three linear bodies and four linear bodies. The conditions and effects of the structure of the resin linear body 4 and the wire diameter ratio with the steel wire, the resin used, and the outer layer coating are completely the same as in the first embodiment, so the description is the same, and it is not included here. To repeat. Fig. 13 shows an example in which three resin linear bodies 4 are used, in which the resin linear bodies 4 are separated by two steel wires 2 01. Since other structures and the like are the same as those of the first embodiment, they will not be described here. [Example] Next, a coated wire rope according to the present invention was produced. The core cord 1 has a structure in which a core cord body 1 having a structure of 1x7 is coated with an ether-based polyurethane (Xiao hardness D scale 90), and has an outer diameter of 3.0 nun. Next, arrange 6x7 side strands around the core -16-1237080 (13) cable and twist them. Each side strand has 6 linear bodies as the outer layer, 4 of which are steel and the other 2 are resin linear. The steel wire is a steel wire with a diameter of 1.00 ηιηι, and the resin wire is a wire coated with an ether-based polyurethane (Shore hardness D scale 90) on a steel wire with a wire diameter of 1.0 mm. For 1 · 1 mm. The resin linear bodies were arranged between the steel wires, and twisted in a direction of s with a twist pitch of mm to form side strands. Then, 6 side strands of the above specifications were produced, and the prepared side strands were arranged on the outer periphery of the core rope, and then the wire rope base material was twisted in the Z direction at a twist pitch of 80 nim. After inspection of the steel cable base material, an equal gap of 0.2 mm was formed between the side strands, and a gap of 0. 1 irnn was formed between the core cord and the side strands. After washing the steel wire base material, preheat it to 100 ° C, and then use an extruder to melt the ether-based polyurethane (Shore hardness D scale 90) at 200 ° C to make the outer layer D 3 thickness 1 · 0 legs 1, Coated steel cable with an outer diameter of 11 mm. After observing the cut surface of the covered steel cable with a microscope, it was confirmed that the covered tree was fully filled between the adjacent side strands, and fully filled between the side and the core rope, and integrated with the outer resin. . Using the jig shown in Fig. 14, the obtained coated wire rope was subjected to reverse stretching of the coating 3 and the steel wire base material A, and the coating and the wire rope's penetration test. For comparison, the side strands were tested for adhesion by using a rope that did not use resin wires and all outer bus bars were steel wires as a control group. As a result, it was confirmed that the adhesion of the inventive wire rope was improved by about 80% as compared with the control group without using the resin linear body. Using a microscope to measure the resin line with a diameter of 3 0 into the interstitial fat-laden joints, the test results showed that the filling rate was 17-1237080 (14). The results confirmed that compared with the control group without resin strands, the resin filling rate The rate increased by about 65%. The S-bend test was performed with D (groove wheel diameter) / d (steel wire warp): 20, safety ratio: 10, and conditions using a round groove wheel to investigate the number of occurrences of abnormality in the coating resin. As a result, the control group that did not use the resin linear body had a coating shift at the 5,000th time, and the wire rope of the present invention did not have abnormality even after passing through 50,000 times. When the number of resin linear bodies was changed to one, the adhesion between the coating layer and the steel cable was increased by about 50% compared with the control group without using resin linear bodies. The resin filling rate in the steel cable increases by 40% when there is only one resin linear body, and it increases by 80 when there are three resin linear bodies. On the other hand, the number of times of abnormality of the coated resin did not occur even after 1 000 times in the state of only one resin linear body. [Industrial Applicability] Although the present invention is applicable to sliding cables, it is also applicable to suspension cables of suspension bridges, steel cables of diagonal bridges, and static cables such as pull ropes. In the case where the above application is applicable, the covering resin is not only covering the side strands. Because the resin is charged into the core cord and the side strands through the side strands to form a solid connection, the covering can be avoided. The gap between the rope body due to the different expansion rates of steel and resin can effectively prevent corrosion caused by moisture (including those caused by condensation). [Brief description of the drawings] -18-1237080 (15) Figure 1: A partially cutaway perspective view showing the first embodiment of the coated steel cable of the present invention. Fig. 2 is an enlarged sectional view of Fig. 1. Fig. 3: A is a partially cutaway perspective view showing an example of a resin linear body used in the present invention. B is a partially cutaway perspective view showing another example of the resin linear body used in the present invention. Fig. 4: A is an enlarged perspective view of a side strand in the first embodiment. b is a sectional view of FIG. 4A. Fig. 5 is a cross-sectional view showing the steel cord of the first embodiment before the outer layer is covered (the steel cord base material). Fig. 6: A is an explanatory diagram of the covering outer layer. B is a schematic illustration of the state of resin penetration during the coating process. Fig. 7: A is a cross-sectional view showing the steel cable of the second embodiment before the outer layer (the steel cable base material) is not covered. B is a cross-sectional view of the steel cord of the second embodiment. Fig. 8 is a partially cutaway perspective view showing a third embodiment of a coated steel cable according to the present invention. FIG. 9 is an enlarged sectional view of FIG. 8. Fig. 10 is an enlarged perspective view of a side strand in the third embodiment. Fig. 11 is a sectional view of a side strand in a third embodiment. Fig. 12 is a cross-sectional view showing the steel wire rope of the third embodiment before the outer layer (the steel wire base material) is not covered. Fig. 13: A is a cross-sectional view showing the steel cord of the fourth embodiment before the outer layer (the steel cord base material) is not covered. B is a side cross section of the fourth embodiment. • 19-1237080 (16) An enlarged sectional view. FIG. 14 is an explanatory diagram of a test fixture of a steel cable of the present invention. [Component comparison table] 1: core cord la: core cord body 1 b: synthetic resin coating layer (resin layer) 2: side strands 2c: inner layer 3: synthetic resin outer layer coating 4: resin linear body 4a: reinforcement Line 4 b: Resin layer 9: Extruder 3 0: Molten resin 90: Mold 1 0 1: Center line body 102: Side line body 2 0 1: Center line body 2 0 1 ': Thick center line body 202 : Metal linear body 2 0 3: Thin linear body 3 0 0: Filling part (penetrating resin layer) 301: Filling part (penetrating resin layer) -20 1237080 (17) 3 0 2: Cylindrical Outer layer 4 0 0: Busbar A: Steel cable base material D 1: Circumference circle D2: Circumference circle D 3: Circumference circle
5 1 :間隙 S 2 :間隙5 1: Clearance S 2: Clearance
-21 --twenty one -