201130442 六、發明說明： 【發明所屬之技術領域】 本發明係關於-種構成為由鏈布隱藏連續狀之鏈齒列使 之難以自外側看見之鏈條、以及為獲得此種鍵條而將鍵齒 ' 列缝合於鍵布上之鏈齒列之縫製方法、及將藉由上述縫製 方法而縫合有鏈齒列之鏈布彎折製造鏈帶之鏈帶之製造方 法。 【先前技術】 通常而言，拉鏈係大致分為兩種具代表性之種類：嚙合 後之左；&鏈齒列因西己置於鏈布<鏈布表面側而露出之普通 々型之拉鏈，及可使喷合後之左右鏈齒列隱蔽而無法自外 側看見之隱形類型的拉鏈（所謂之隱形拉鏈）。 八中隐形拉鏈因其隱蔽性而具有不會妨礙製品設計性 之優點，故較佳使用於各種衣類及鞋等製品又，近年 來’亦可使用於汽車或火車之座位用座套等。此種隱形拉 鏈之例係於例如日本專利特開2006-247279號公報（專利 文獻1)中以一實施例而揭示。 另一方面’於實用新型註冊第31521〇〇號公報（專利文獻 2)中揭不有—種藉由在左右之鏈齒列之表面安裝被覆體 而將鏈齒列之—部分隱藏以便自外部無法看見之拉鍵。 々圖1 〇所不，該專利文獻2記載之拉鏈7〇係包括：一對 鏈π 1其於左右一對鏈布72上安裝有螺旋狀之連續鏈齒 列73，被覆體74，其安裝於左右之連續鏈齒列73之上表面 側；及未圖示之滑件，其沿著左右之連續鍵齒列乃以可滑 149590.doc 201130442 動方式配置。 左右之鏈布72分別具有鏈布主體部72a、彎折成u字狀之 鏈布彎折部72b、及降連續鏈齒列73縫合之鏈齒安裝部 72c »連續鏈齒列73係使用固定線75，縫合於鏈布72之鍵 齒安裝部72c。該連續鏈齒列73中之各鏈齒係具有嚙合頭 部、自該嚙合頭部延伸之上下腳部、及將相互鄰接之鏈齒 間連結之連結部。被覆體74係配置於連續鏈齒列之上腳 部之上表面側，且藉由固定線75而與連續鏈齒列乃一併縫 合於鏈齒安裝部72c。 於該拉鏈70安裝於座套等被著製品之情形時，於鏈布72 之鏈布彎折部72b之内側，夹入f折成u字狀之外表材料等 之被著體76，將鏈布72與被著體76縫製。 此專利文獻2之拉鏈70係於使左右之連續鏈齒列73嚙合 時，左右之鏈布72之鏈布彎折部72b彼此密接，從而將連 續鏈齒列73相較該密接之左右之鏈布f折部72b配置於外 部側（表側）。 該情形時，於相較鏈布彎折部72b配置於外側之連續鏈 齒歹上，被覆體74係安裝於連續鏈齒列^之上腳部。藉 此連續鏈齒73之上腳部側由被覆體74隱藏，故自上方側 Λ察拉鏈7G時’可不易或無法看見連續鏈齒73。又，於該 拉鏈7〇中’由於被覆體74係配置於高於被著體76之表面的 位置處，故可對拉鏈被著製品進行富有纟體感之裝飾。 如進而於上述專利文獻2中，作為其他實施例，揭示有 下拉鏈·藉由黏著劑而將被覆體固著於左右之連續鏈齒 149590.doc 201130442 之上腳部及連結部之表面，使連續鏈齒之上腳部及連結部 由被覆體所覆蓋。若為此種拉鏈，則使左右之連續鏈齒嚙 合時，將藉由被覆體而於更廣範圍内覆蓋隱藏連續鏈齒， 故可使連續鏈齒更難以自外部看見。 先前技術文獻 ' 專利文獻 專利文獻1 :曰本專利特開2006-247279號公報 專利文獻2 :實用新型註冊第31521〇〇號公報 【發明内容】 發明所欲解決之問題 如上述專利文獻1记載之先前之隱形拉鍵中，當使左右 之連續鏈齒列嚙合時，左右之鏈布之鏈布彎折部將彼此密 接’使連續鏈齒列相較該密接之左右之鏈布彎折部配置於 内部側（裏側）。因此，處於嚙合狀態之左右之連續鏈齒列 係由彼此密接之左右之鏈布彎折部隱藏而自外部無法看 見。 然而，於將如此之先前之隱形拉鏈適用於例如汽車用座 套等被著製品之情形時，左右之鏈布因被座套等拉伸而受 到相互背離方向之橫向拉力時，會於左右之鏈布彎折部間 形成間隙。因此，存在通過上述間隙而使左右之連續鏈齒 列暴露於外部之情形，於先前之隱形拉鏈中，左右之鏈布 極難在文到橫向拉力後亦保持連續鏈齒列之隱蔽狀態。 另—方面，於圖10所示之上述專利文獻2之拉鏈7〇之情 形時，雖然由被覆體74隱藏連續鏈齒列73之上腳部，但連 149590.doc 201130442 續鏈齒列73之連結部中被覆體74並未受到被覆。因此，上 述拉鏈70存在如下問題：連續鏈齒列73局部暴露而易於自 左右方向（拉鏈寬度方向）看見，導致安裝有拉鏈7〇之被著 製品之美觀性及設計性降低。 又，於上述拉鏈70中，僅被覆體74之中央部藉由固定線 75而縫合於連續鏈齒列73及鏈齒安裝部72c，故亦存在左 右之被覆體74之外侧之侧緣部並未固定於連續鏈齒列73， 導致被覆體74之側緣部易捲曲之問題。 於上述專利文獻2中作為其他實施例記載之拉鏈中，連 續鏈齒之上腳部及連結部上黏著有被覆體，且上腳部及連 結部由被覆體所覆蓋。然而，於製造此種拉鏈之情形時， 在鏈布上縫合連續鏈齒之後，必須利用黏著劑將被覆體黏 著於該連續鏈齒上，故拉鏈之製造步驟變得繁雜。 又於上述拉鏈之情形時，由於連續鏈齒之上腳部及連 結部黏著有被覆體，故被覆體相對連續鏈齒之位置得到固 定。因此，若在被覆體黏著固定於連續鏈齒時被覆體之位 置向左右方向偏移，則無法調整被覆體之位置，使得連續 鏈齒無法完全由被覆體隱藏。 進而，於上述拉鏈中，鏈布與被覆體係分開單獨形成， 故將被覆體黏著於連續鏈齒之上腳部及連結部之情形時， 將導致鍵布與被覆體之間之交界處、或鏈布之鏈布側端緣 可自外部看見，有損拉鏈之美觀性。 而且，使用黏著劑將被覆體黏著於連續鏈齒列時，難以 調卽塗佈於兩者之間之黏著劑之塗佈量，例如當黏著劑之 149590.doc 201130442 :佈里.父多時’黏著劑會自被覆體突出，存在有損拉鏈之 外觀之可能性。 另一=面’當黏著劑之塗佈量較少時被覆體之端緣部 ’’’、法穩疋黏著於連續鏈齒之上腳部或連結部。因此，亦存 在被：體易於自例如以較大曲㈣曲之連結部中剝離而捲 曲’導致連續鏈齒之—部分暴露於外部之可能性。 又丄上述專利文獻2之拉鏈（即、圖ig所示之拉鏈或作為 、貫施例之拉鏈）係作為構成拉鏈之零件，不僅具有鏈 布及連續鏈#列，而且亦另外具有被覆體故料前之隱 拉鏈相比，零件件數變多。藉此，會導致製造成本增 加、零件管理複雜化、製造步驟數增加等，故而亦期望減 少拉鏈構成零件之件數。 杨明係繁於上述先前之問題研究而成者，其具體目的 在於提供-種使連續狀之鏈齒列穩定隱蔽*無法自外部看 見且美觀性提高而不會導致構成零件件數增加的拉鍵用鍵 條，及為獲得該鏈條而將鏈齒列縫合於鏈布上之鏈齒列之 ^製方法、以及使利m縫製方法縫合有鏈齒列之鍵布 彎折從而製造鏈帶之鏈帶之製造方法。 解決問題之技術手段 為達成上述目@ ’由本發明提供之拉鏈鍵條，作為基本 構成之最主要特徵在於，具備左右—對鏈布、及縫合於左 右之上述鏈布之連續狀之鏈齒列，上述鏈布具有鏈布主體 部、縫合有上述鏈齒列之鏈齒安襞部、及配置於上述鏈布 主體部及上述鏈齒安裝部間且f折成u字狀之鏈布彎折 149590.doc 201130442 部’上述鏈齒列之鏈齒具有喷合頭部、自上述喷合頭部延 伸之上下腳部、及連結相互鄰接之上述鍵齒間之連結部； 且，上述鏈布彎折部係以上述鏈布坌 4罐’之第1鏈布面為内側而 彎折’上述鏈齒列係配置於上述鏈齒安裝部中之與上述鍵 布之上述第1鏈布面為相反側的第2鏈布面側，上述鏈齒安 裝部具有接觸於上述鏈齒列之上述下腳部之第〗鏈布區 域、及包覆上述鏈齒列之上述連結部及上述上聊部並且在 上述鏈條使用時使上述第i鏈布面暴露於外側的第2鏈布區 域，上述鏈齒列之上述上下腳部係藉由縫製線而縫合於上 述鍵lsl女裝。卩之上述第1鏈布區域與上述第2鏈布區域，當 左右之上述鏈齒列嚙合時，左右之上述鏈齒安裝部之相對 的鏈布側端緣彼此接觸。 於本發明之拉鏈鏈條中，較佳為上述鏈布係編織而成， 且配置於上述鏈齒安裝部之上述第2鏈布區域之經線，使 用較配置於上述鏈齒安裝部之上述第〗鏈布區域之經線更 細的線。 於該情形時，較佳為，將配置於上述第2鏈布區域之經 線之粗度設定為30 dtex以上且1 50 dtex以下。又，較佳 為’將配置於上述鏈齒安裝部之上述第1鏈布區域、上述 鍵布聲折部、及上述鏈布主體部之經線之粗度設定為160 dtex以上且5〇〇 dtex以下。 又’較佳為’上述第2鏈布區域具有織入至交替穿行於 至少1根緯線之表側與1根緯線之裏側之171組織的複數根 經線。 149590.doc 201130442 於:亥情形時，較佳為，上述第2鏈布區域具有織入至交 替穿订於2根緯線之表側與2根緯線之裏側之2/2組織的經 線進而，尤佳為，上述第2鏈布區域具有配置於上述第i 鏈布區域側之第Μ織組織區域、及配置於上述鏈布側端 緣側L織組織區域’且上述^編織組織區域具有較 上述第2編織組織區域更多之織入上述2/2組織之上述經 進而於本發明之拉鏈鏈條中，較佳為上述鍵齒安裝部 之上述鏈布側端緣在左右之上述鏈齒列分離時，配置成較 上述鏈齒之上述嚙合頭部之内周面之位置更朝嚙合對象側 突出。 、其次，由本發明提供之鏈齒列之縫製方法，作為基本構 成之最主要特徵在於’其係藉由縫紉機將具有嚙合頭部、 自上述喷合頭部延伸之上下腳部、及連結相互鄰接之鍵齒 間之連結部的連續狀之職列縫合於鏈布之鏈齒列之縫製 方法，且包含如下步驟··於上述縫紉機之縫製部，配置具 有可穿過上述鏈布及上述鏈蠢列之通徑之導引部，將上述 鏈布之鏈齒安裝部以第丨鏈布面朝向外側之方式，彎折成1； 字狀並導引至上述導引部之上述通徑内；以上述上下腳部 及上述連結部接觸或朝向與上述鏈布之上述第丨鏈布面相 反之第2鏈布面的姿勢，將上述鏈齒列導引至彎折成^^字狀 且被導引至上述通徑内之上述鏈齒安裝部之内側；以及， 一面使上述鏈齒安裝部與上述鏈齒列穿過上述通徑内，一 面將上述鏈齒列之上述上下腳部同時縫合於上述下腳部所 149590.doc -9- 201130442 接觸之上述鏈齒安裝部之第1鏈布區域及上述上腳部所接 觸之上述鏈齒安裝部之第2鏈布區域。 又，本發明提供之鏈帶之製造方法之特徵在於包含如下 步驟：使藉由具有上述構成之鏈齒列之縫製方法而縫合上 述鏈齒列之上述鏈布之一部分，以上述第〗鏈布面朝向内 側之方式弩折成U字狀，而形成鏈布彎折部；及對上述鏈 布進行加熱’保持上述鏈布彎折之形態。 發明之效果 於本發明之拉鏈用鏈條中，鏈布之鏈布彎折部係以第ι 鏈布面為内側（換言之，將第2鏈布面作為外側）而彎折， 又，連續狀鏈齒列係配置於鏈齒安裝部之第2鏈布面側。 又，上述鏈條之鏈布之鏈齒安裝部具有接觸於鏈齒列之 下腳部之第1鏈布區域 '及包覆鏈齒列之連結部及上腳部 且在鏈條之使用時使第i鏈布面暴露於外側的第2鏈布區 域，鏈齒列之上下腳部係藉由縫製線而縫合於鏈齒安裝部 之第1鏈布區域及第2鏈布區域。進而，左右之鏈齒列响合 時，左右之鏈齒安裝部相對之鏈布側端緣彼此接觸。 於具有此種構叙本發明之鏈條中，連續狀之鏈齒列係 於由鏈布之鏈齒安裝部包覆之狀態下縫合於上述鏈齒安裝 而且，左右之鏈齒安裝部相對之鏈布側端緣彼此在左 右之鏈齒列喃合時成為相互對接而接觸之狀態。藉此，左 右之鏈齒列無需使用如例如上述專利文獻2之被覆體，便 可藉由鏈布之鏈齒安裝部而穩定地隱蔽。 又包後鏈齒列之連結部及上腳部之鏈齒安裝部係自鏈 149590.doc 201130442 布彎折部連續地延伸設置。因此，亦不會如例如上述專利 文獻2般，產生被覆體於鏈齒列之以較大曲率彎曲之連結 部之部位捲曲之類的不良狀況。再者，左右之鏈齒安裝部 相對之鏈布側端緣係相互對接而接觸，故鏈布側端緣形成 為不易捲曲。 因此，本發明之鏈條係與例如先前之隱形拉鏈相比，無 需增加拉鏈構成零件之件婁欠，便可整體上穩定地隱藏唾合 之鏈齒列’使其無法自外部看見，從而可提高鏈條之美觀 性，進而可提高安裝有上述鏈條之被著製品之美觀性。 尤其，本發明之鏈條係將鏈齒列及覆蓋該鏈齒列之鏈齒 安裝部配置於較鏈布之鏈布彎折部更外部側（表側），故於 鏈條使用時可對鏈條賦予立體感，從而可呈現出與先前之 隱形拉鏈不同的新外觀。 不僅如此，上述鏈條中，在鏈齒列之嚙合狀態下當例如 左右之鏈布受到相互背離方向之橫向拉力的情形時，即便 左右之鏈布彎折部於相互背離之方向移動，但由於左右之 鏈布之鏈齒安裝部牢固地縫合著嚙合狀態下之鏈齒列，故 可保持其位置。因此，可維持鏈齒安裝部之相對之鏈布側 端緣彼此接觸之狀態’從而可藉由左右之鏈齒安裝部而穩 定地隱藏鏈齒列。 再者，所謂鏈齒安裝部之相對之鏈布側端緣彼此接觸之 狀態，較佳為左右之鏈布侧端緣遍及整個鏈布長度方向而 相互完全抵接之狀態’但本發明中亦包含例如左右之鏈布 側端緣之至少1分相互抵接之狀態，以及即便因鍵條之 149590.doc -11， 201130442 使用形態等而導致左右之鏈布側端緣間形成微小間隙、但 自外側觀察上述鏈條時自左右之鏈布側端緣之間不易或無 法看見鏈齒列的狀態。 於如此之本發明之鏈條中’鏈布係經編織而成，又，對 於配置於鏈齒安裝部之第2鏈布區域之經線，使用較配置 於上述鏈齒安襞部之第丨鏈布區域之經線更細之線。藉 此，可使鏈齒安裝部之第2鏈布區域之布厚薄於第丨鏈布區 域。因此，在上述鏈條中安裝滑件時，即便鏈齒安裝部與 滑件内壁面滑動接觸，亦可減小鏈齒安裝部與滑件内壁面 之間產生的摩擦力’從而使滑件容易滑動。 進而，可藉由較細地形成鏈齒安裝部之第2鏈布區域之 經線’而易於彎曲地形成該第2鏈布區域，因此，可易於 使第2鏈布區域沿著鏈齒列之連結部及上腳部之外周面彎 曲0 於該情形時，可藉由將配置於第2鏈布區域之經線之粗 度設定為30 dtex以上且150 dtex以下、尤其設定為50 dtex 以上且100 dtex以下，而有效地減小第2鏈布區域之布厚， 並且可使第2鏈布區域彎曲，從而確實地貼合於鏈齒列之 連結部及上腳部。 又，配置於鏈齒安裝部之第丨鏈布區域、鏈布彎折部、 及鏈布主體部之經線之粗度係設定為16〇 dtex以上且5〇〇 dtex以下。可藉由將鏈齒安裝部之第1鍵布區域之經線之 粗度設定於上述範圍内，而提高第1鏈布區域之於鏈布長 度方向上之剛性，故可於第丨鏈布區域穩定地縫合鏈齒 149590.doc 12- 201130442 列。 又，可藉由將鏈布彎折部及鏈布主體部之經線之粗度設 定於上述範圍内’而提高鏈布彎折部及鏈布主體部之於鏈 布長度方向上之剛性。例如將鏈條之鏈布縫合於作為被著 製品之汽車用座套等之情形時，將相對較厚地製成上述座 套。因此，若料之鏈布主體部形成為較柔軟，則將鍵布 縫口於座套時，存在鏈布無法承受縫合線之張力而於鏈布 上產生波狀收縮’從而導致縫製收縮等不良狀況之虞。相 對於此’可藉由如上述般提高鏈布彎折部及鏈布主體部之 於鏈布長度方向上之剛性，而於即便鏈布縫合於較厚之製 品時亦可防止縫製收縮等不良狀況之產生。 . 鏈齒女裳°卩之第2鏈布區域係具有織入至交替穿行 於至少1根緯線之表側與1根緯線之裏側之1/1組織的複數 7<泉藉此，便可提高第2鏈布區域之線密度，從而提 ⑺件之内壁面滑動接觸之第2鏈布區域之強度及耐久 性。 進而’於該情形時，鏈齒安裝部之第2鏈布區域具有織 :根緯線之表侧與2根緯線之裏側交替穿行之Μ組織 線故可對第2鏈布區域賦予適度之柔軟性，使得第2 鏈布區域易彎曲地形成。又，第2鏈布區域具有Μ組織之 7<文將鏈齒列縫製於鏈盘安裝部時，縫幼機針易於刺 穿鏈齒安裝部之第2鏈布區域。 、尤其於此情形時’鏈齒安裝部之第2鏈布區域具有配置 ;第鏈布區域側之第丄編織組織區域、及配置於鍵布側端 149590.doc 13 201130442 緣側之第2編織組織區域’第1編織組織區域相較第2編織 組織區域具有更多之織入至2/2組織之經線。藉此，可使 第2鏈布區域之配置於第1鏈布區域側之第1編織組織區域 形成為較第2編織組織區域更柔軟，因此，該第1編織組織 區域可穩定地沿著鏈齒列之以較大曲率弯曲之連結部之外 周面覆蓋該連結部。 進而’於本發明之鏈條中，鏈齒安裝部之鏈布側端緣係 配置成於左右之鏈齒列分離時，相較鏈齒之嚙合頭部之内 周面之位置而朝向嚙合對象側突出。藉此，當使左右之鏈 齒列嚙合時’可使左右之鏈齒安裝部相對之鏈布側端緣彼 此確實地對接接觸。因此，可更確實地防止處於嚙合狀態 之鏈齒列自左右之鏈齒安裝部之間暴露於外部之情形。 藉由縫紉機而將本發明提供之鏈齒列縫合於鏈布之縫製 方法係於缝紉機之縫製部，配置有包括可穿過鏈布及鏈齒 列之通徑之導引部，首先使鏈布之鏈齒安裝部以第丨鏈布 面朝向外側之方式彎折成U字狀並導引至該導引部之通徑 内。 其次’將鏈齒列以其上下腳部及連結部接觸或朝向鍵布 之第2鏈布面之姿勢，導引至彎折成1;字狀且被導引至通徑 内之鏈齒安裝部之内側’其後一面使鏈齒安裝部與鏈齒列 穿過通徑内，-面將鏈齒列之上下腳部同時縫合於鍵_ 裝部之第1鏈布區域及第2鏈布區域。 可藉由以此方式利用縫切機將鏈齒列縫合於鏈布之鏈齒 安裝部，而於由鏈齒安裝部包覆鏈齒列之連結部及上腳部 149590.doc 14 201130442 之狀態下，將鏈齒列之上下腳部縫合於鏈齒安裝部之第 鏈布區域及第2鏈布區域。 進而，本發明提供之鏈帶之製造方法係使利用上述鍵齒 列之縫製方法而縫合有鏈齒列之鏈布之一部分，以其第丄 鏈布面朝向内側之方式彎折成吟狀而形成鏈布_折部1 其後，藉由加熱鏈布而進行鏈布之熱固化，保持鍵布彎折 形態。藉此’便可穩定地製造上述之本發明之鏈條 之鏈帶。 【實施方式】 以下’―面列舉實施例並參照圖式，—面詳細說明本發 明之較佳實施形態。再者，本發明並不受以下說明之各實 施例任何限定，只要具有與本發明實質相同之構成，且實 現同樣之作用效果，便可實施多種變更。 例如，以下之實施例係對將螺旋狀之鏈齒縫合於 作為連續狀之鏈齒列之情形進行說明。然而，本發明並不 限定於此’亦可取代螺旋狀之鏈齒’而將鑛齒狀之鍵齒縫 合於鏈布，形成鏈齒列。 實施例1 ^圖1係表示具有本實施例1之鏈條之拉鏈之正面圖，圖2 係上述鏈條之剖面圖。 再f，於以下之說明中，係將鏈條之鏈布之鏈布長度方 向規疋為别後方向。又’於上述鏈條中’係將鏈布之鍵布 主體部之布寬方向（鏈條之鏈條寬度方向）規定為左右方 向進而，於上述鏈條中，係將鏈布之鏈布主體部之與第 149590.doc -15- 201130442 1及第2鏈布面正交之方向規定為上下方向。 如圖1所示，本實施例！之鏈條丨係藉由沿上述鏈條〗之連 續狀之鏈齒列30安裝滑件4而構成拉鏈3。以此方式構成之 拉鏈3係如下所述可安裝於汽車用座椅6之座套7(參照圖幻 等上進行使用。 如圖2所示，構成此種拉鏈3之本實施例〗之鏈條〗具有左 右一對之鏈帶10。X ’左右之各鏈帶1〇具備經編製而成之 帶狀之鏈布20、縫合於鏈布20上之連續狀之鏈齒列％。 左右之鏈布20具有第i鏈布面及第2鏈布面，且於經線之 開口内使導紗桿往復移動，織入地緯線，藉此編織而成。 又，各鏈布20係分別具有縫合於例如座套7等被著製品之 鏈布主體部21、自鏈布主體部21之一側緣延伸設置且彎折 成u字狀之鏈布彎折部22、自鏈布彎折部22進一步延伸設 置且縫合有鏈齒列30之鏈齒安裝部23。 於該情形時，將朝向鏈布彎折部22之内側之面（内周面） .設為第1鏈布面，將朝向鏈布彎折部22之外側之面、及鏈 齒安裝部23之配置有鏈齒列3〇 一側之面設為第2鏈布面。 再者本貫施例1係對鏈布20為織物之情形進行說明，但 本發明中亦可由針織物構成鏈布。 本實施例1之左右之鏈布20係形成為於左右之鏈齒列3〇 嚙合時，鏈布彎折部22彼此接觸’且鏈齒安裝部23側之鏈 布側端緣20a彼此接觸。再者，於本發明中，當左右之鏈 齒歹j 30嚙5時，左右之鏈布2〇之鏈齒安裝部η側之鏈布側 端緣20a彼此至少接觸即可，亦可為左右之鏈布彎折部22 149590.doc -16 - 201130442 互不接觸的情形。 又，本實施例1之鏈布20之鏈布主體部21及鏈布彎折部 22係由2根單線以拉齊狀態構成丨根之地緯線、及經線編織 而成，如圖3所示，其之編織組織係主要由織入至經線於2 根地緯線之表側及2根地緯線之裏側交替穿行之2/2組織的 斜紋織物構成。可藉由以此方式主要由斜紋織物構成鏈布 主體部21及鏈布彎折部22,而適度柔軟地形成鏈布主體部 21及鏈布彎折部22。 再者，鏈布主體部2 1之與鏈布彎折部22側相反之鏈布側 知緣部20b係藉由利用織入至經線於丨根地緯線之表側及 1根地緯線之裏側交替穿行之ιη組織的平織構成而被封 閉。此處’鏈布主體部21之除鏈布側端緣部2〇b以外之部 分、鏈布彎折部22 '及鏈齒安裝部23之下述第1鏈布區域 24之編織組織係由相同斜紋織物構成，故圖3中對鏈布主 體部21之一部分、鏈布彎折部22、及鏈齒安裝部23之第1 鏈布區域24之一部分編織組織省略圖示。 於邊情形時，配置為地緯線之各單線、及配置於鏈布主 體部21及鏈布彎折部22之經線，係使用160 dtex以上且5〇〇 dtex以下之聚酯纖維、較佳為3〇〇 dtex以上且400 dtex以下 之聚酯纖維。再者，於本實施例1中，作為地緯線配置於 鏈布主體部2 1及鏈布彎折部22之各單線及經線係實際使用 3 30 dtex之聚S旨纖維。 於本實施例1中’鏈布主體部21及鏈布彎折部22係使用 具有如上所述之粗度之經線而構成’藉此便可提高鏈布主 149590.doc 17 201130442 體部21及鍵布彎折部22之於鏈布長度方向上的剛性。 此處，例如將鏈條用於汽車用座椅6之座套7之情形時， 座套7有時形成為相對較厚。於該情形時，藉由固定線而 將鏈條之鏈布縫合於上述座套7時，若鏈布之鏈布長度方 向之剛性不充分’則存在鏈布無法承受固定線之張力而於 鏈布上產生波狀收縮之情形。 相對於此，由於本實施例丨之鏈條丨如上所述可提高鏈布 主體部21及鏈布彎折部22之於鏈布長度方向上的剛性，故 即便藉由固定線將鏈布20之鏈布主體部21縫合於相對較厚 之座套7上’於鏈布20上亦不會產生波狀收縮，從而可防 止縫製收縮等不良狀況之產生。 再者，於本發明中’配置於鏈布2〇之鏈布主體部21、鍵 布彎折部22、及下述鏈齒安裝部23之地緯線及經線之材質 及粗度並無特別限定。例如’如上所述之地緯線及經線中 可任意選擇使用聚酯纖維以外之合成纖維或天然纖維， 又’可視需要任意變更線之粗度。 另一方面，本實施例1之鏈布20之鏈齒安裝部23係具有 配置於鏈布彎折部22侧之第1鏈布區域24、配置於鏈布20 之鏈布側端緣20a側之第2鏈布區域25。 鏈齒安裝部23之第1鏈布區域24係配置為自鏈布20之鏈 布彎折部22連續延伸設置，從而接觸到鏈齒列30之下述下 腳部34之外周面。又，鏈齒安裝部23之第2鏈布區域25係 自上述鏈齒安裝部23之第1鏈布區域24形成至鏈布側端緣 2〇a。該第2鏈布區域25係以包覆鏈齒列30之連結部35及上 149590.doc 201130442 腳部33之方式’覆蓋連結部35及上腳部33之外周面，又， 配置成當左右之鏈齒列3 〇嚙合時第2鏈布區域25之第1鏈布 面暴露於外側。 於本實施例1中，鏈齒安裝部23之第1鏈布區域24係由與 鍵布’聲折部22、及除鏈布側端緣部2〇b之外之鏈布主體部 21相同的編織組織構成。即，第1鏈布區域24係由2根單線 以拉齊狀態構成為1根之地緯線、及經線編織而成，其之 編織組織係由織入至經線於2根地緯線之表側、及2根地緯 線之裏側交替穿行之2/2組織的斜紋織物所構成。 於該情形時’配置於上述第1鏈布區域24之經線係與鏈 布主體部21及鏈布彎折部22相同，使用16〇 dtex以上且5〇〇 dtex以下之聚酯纖維，較佳為使用3〇〇 dtex以上且4〇〇 dtex 以下之聚醋纖維。再者，於本實施例1中，33〇 dtex之聚酯 纖維實際上係用作第！鏈布區域24之經線。 相對於此，鏈齒安裝部23之第2鏈布區域25係織入有相 較第1鏈布區域24更細之經線而構成。又，於本實施例1 中’第2鏈布區域25係具有沿鏈齒列3〇之連結部35配置之 第1編織組織區域2 5 a、及沿鏈齒列3 〇之上腳部3 3配置的第 - 2編織組織區域25b。 該第2鏈布區域25之第1及第2編織組織區域25a、25b 中’配置有織入至交替穿行於1根地緯線之表側、及1根地 緯線之裏側之1/1組織的複數根經線（以下簡稱為1/】組織之 經線）、以及織入至交替穿行於2根地緯線之表側、及2根 地緯線之裏側之2/2組織的複數根經線（以下簡稱為2/2組織 149590.doc 19 201130442 之經線）。 可藉由以此方式於第2鏈布區域25之第1及第2編織組織 區域25a、25b中配置1/1組織之經線，而提高第1及第2編 織組織區域2 5 a、2 5 b之強度及财磨損性。又，可藉由於第 1及第2編織組織區域2 5 a、2 5 b中配置2 / 2組織之經線，而 確保第1及第2編織組織區域25a、25b之適當的柔軟性，並 且防止上述區域產生起毛。 進而’當將鏈齒列30縫製於鏈齒安裝部23上時，若2/2 組織之經線配置於第2編織組織區域25b，則可防止第2編 織組織區域25b之線密度變得過高，故可使縫紉機針4丨順 利刺穿該第2編織組織區域25b。 尤其於本實施例1之鏈條1中，配置於第2鏈布區域25之 第1編織組織區域25a之2/2組織之經線之根數比例設定為 大於第2編織組織區域25b。具體而言，本實施例1之第1編 織組織區域25a内，1 /1組織之經線、及2/2組織之經線係以 相同根數配置。相對於此，本實施例1之第2編織組織區域 25b内，2/2組織之經線則以少於組織之經線之根數配 置。 如此般’可藉由使配置於第1編織組織區域25&之2/2組 織之經線之根數比例大於第2編織組織區域25t)，而使第i 編織組織區域25a之柔軟性高於第2編織組織區域25b。因 此’可一面使第1編織組織區域25a沿著鏈齒列3〇以較大曲 率彎曲之連結部35進行彎曲，一面易於藉由上述第1編織 組織區域25a覆蓋連結部35。 149590.doc •20· 201130442 另一方面，可藉由使配置於第2編織組織區域25b之1/1 組織之經線之根數比例大於第1編織組織區域25a，而使第 2編織組織區域25b之線密度變得大於第1編織組織區域 2 5 a，從而提向第2編織組織區域2 5 b之強度。因此，可穩 定地維持將鏈齒列30縫合於鏈齒安裝部23之第1鏈布區域 24、及第2鏈布區域25之第2編織組織區域25b的狀態。 於該情形時，配置於第2鏈布區域25之第1及第2編織組 織區域2 5 a、2 5 b之經線係使用3 0 dtex以上且150 dtex以下 之聚酯纖維，較佳為50 dtex以上且100 dtex以下之聚酯纖 維。再者’於本實施例1中，84 dtex之聚酯纖維實際係用 作第1編織組織區域25a之經線，而50 dtex之聚酯纖維係用 作第2編織組織區域25b之經線。 如此般’藉由使配置於第2鏈布區域25之經線細於配置 於第1鏈布區域24之經線，可使第2鏈布區域25之鏈布厚度 薄於第1鏈布區域24，並且使第2鏈布區域25易彎曲而形 成。因此’可使鏈齒安裝部23之第2鏈布區域25易於沿著 鏈齒列30之連結部35及上腳部33之外周面彎曲。 本實施例1之鏈條1之鏈齒列30係藉由使聚酯等合成樹脂 製之單絲成形為螺旋狀而形成為連續狀。構成該鏈齒列3〇 之各鏈齒3 1係具有嚙合頭部3 2、自上述嚙合頭部3 2沿鏈條 寬度方向延伸設置之上下腳部33、34、及使上腳部33或下 腳部34之端部與鄰接於前後方向之鏈齒31之下腳部34或上 腳部3 3連結的連結部3 5。 該鏈齒列30係於芯線3 7穿過上下腳部33、34間之狀態、 149590.doc •21 · 201130442 且下腳部34接觸於鏈齒安裝部23之第1鏈布區域24並且連 結部35及上腳部33由鏈齒安裝部23之第2鏈布區域25覆蓋 的狀態下’縫合於鏈齒安裝部23 ^尤其於該情形時，鏈齒 列30之上下腳部33、3 4係藉由包含上線及下線之縫合線3 8 之多線鎖鏈針步而縫合於鏈齒安裝部23之第1鏈布區域 24、及第2鏈布區域25之第2編織組織區域25b。 其次’對製造具有如上所述之構成之本實施例1之鏈條i 的方法進行說明。 本實施例1之鏈條1係以如下方式製造：分別製作左右之 鏈帶1〇，其後使左右之鏈帶10之鏈齒列3〇嚙合。 首先，為製作鏈帶1 〇，而使用縫紉機將連續狀之鏈齒列 30縫製於鏈布2〇上。 此處，如圖4所示，用於縫製之縫紉機之縫製部係具有 使用2行之縫紉機針41，將鏈齒列30縫製於鏈布20之導引 部40。於該縫紉機之縫製部，2行之縫紉機針“係相互錯 開配置於鏈布20及鏈齒列3〇之搬送方向上。又，於導引部 4〇中，配置有可使鏈布2〇及鏈齒列3〇穿過之通徑、及可 使2行之縫紉機針41沿上下方向穿過之穿針孔43。 於該情料，上料引部4G之通彳i42具有可使鏈布默 彎折成u字狀之鏈齒安裝部23及鏈齒列3〇穿過的第丄通徑 42a、以及使相當於鏈布2〇之布本體部及鏈布彎折部Μ之 部分穿過的第2通徑42 b。 又，穿針孔43係以2行之縫紉機針41可貫通導引部扣之 第2通徑42b之方式，沿與鏈布2〇及鏈齒安裝部23之搬送方 149590.doc •22· 201130442 向正父之方向配置於第1通徑42a之上方及下方。 進而’相較該導引部40而於上述搬送方向之上游側，配 置有未圖示之導向部，其將鏈布20之鏈齒安裝部23一面弯 折成U字狀一面朝向導引部40之通徑42進行導引。 於使用具有此種導引部40之縫紉機，將鏈齒列3 〇縫製於 鏈布20之情形時，首先，將鏈布2〇及鏈齒列3〇導引導入至 導引部40之通徑42内。此時’於鏈布2〇導入至導引部4〇之 通徑42内之前，藉由配置於上述導引部4〇之上游側之未圖 示的導向部，使鏈布20之鏈齒安裝部23以其第2鏈布面朝 向内側（第1鏈布面朝向外側）之方式彎折成U字狀。 此處，於本實施例1之鏈布20中，如上所述配置於鏈齒 安裝部23之第2鏈布區域25之經線中，使用細於第1鏈布區 域24之線。又，配置於第2鏈布區域25之第1編織組織區域 25a之2/2組織之經線之比例設定為高於上述第2鏈布區域 25之第2編織組織區域25b。 藉此，鏈齒安裝部23之第2鏈布區域25、尤其第2鏈布區 域25之第2編織組織區域25b形成為易於彎折成u字狀，故 當鏈布20穿過未圖示之導向部時，可易於將鏈齒安裝部23 彎折成沿著鏈齒列30之上下腳部33、34及連結部μ之外周 面之形態。 繼而，鏈齒安裝部23呈U字狀彎折之鏈布2〇以維持該彎 折形態之狀態，導入至導引部40之通徑42内。又，螺旋狀 之鏈齒列30係於芯線37***至上下腳部33、34間之後，配 置於鏈布20之彎折成U字狀之鏈齒安裝部23之内側（内周 149590.doc -23- 201130442 側）’並與鏈布20—併導入至導引部4〇之第1通徑42a内。 此時’鏈齒列30係下腳部34接觸於（或朝向）鏈齒安裝部 23之第1鏈布區域24之第2鏈布面，且，上腳部33及連結部 35接觸於（或朝向）鏈齒安裝部23之第2鏈布區域25之第2鏈 布面，並且嚙合頭部32以朝向彎折成U字狀之鏈齒安裝部 23之開口側的姿勢導引至鏈齒安裝部23之内侧。 其次’將導入至導引部40之通徑42内之鏈布20及鏈窗列 30—面保持特定之彎折形態及位置關係，一面沿通徑42搬 送至下游側。與此同時，經由配置於導引部4〇之穿針孔 43 ’使2行縫紉機針41沿上下方向往復運動，藉此將鏈齒 列30之上下腳部33、34及芯線37縫合於鍵布20之鏈齒安裝 部23。 此時，鏈齒列30之上下腳部33、34係藉由包含上線及下 線之縫合線3 8之多線鎖鍵針步，而同時縫合於下腳部3 4所 接觸之鏈齒安裝部23之第1鏈布區域24、及上腳部33所接 觸之鏈齒安裝部23之第2鏈布區域25中的第2編織組織區域 25b 〇 尤其於本實施例1中’鏈齒安裝部23之第1鏈布區域24係 如上所述由斜紋織物構成，又，鏈齒安裝部23之第2鏈布 區域2 5之第2編織組織區域2 5 b之經線中，不僅使用1 /1組 織之經線’而且亦以特定比例使用2/2組織之經線。 因此，可使縫紉機針41順利刺穿鏈齒安裝部23之第1鏈 布區域24及第2鏈布區域25中之第2編織組織區域25b，藉 此’便可將鏈齒列30之上下腳部33、34穩定地縫合於第1 149590.doc .24· 201130442 鏈布區域24及第2鏈布區域25之第2編織組織區域25b。 而且，藉由縫紉機針41而縫合有鏈齒列3〇之鏈布2〇係藉 由配置於縫紉機之未圖示之搬送機構而搬送至下游側後加 以回收。 ,可藉由進行如上所述之縫製步驟，而獲得於上下腳部 . 33、34及連結部35由鏈布20之鏈齒安裝部23覆蓋，且嚙合 頭部32配置於U字狀之鏈齒安裝部23之開口側的狀態下將 鏈齒列30縫合於鏈布20之鏈帶1〇。 當上述縫製步驟結束之後’如圖5所示，進行使縫合有 鏈齒列30之鏈布20之一部分彎折，形成鏈布彎折部22之步 驟。 具體s兒明之，於該步驟中，首先將鏈布2 〇中之相較縫合 鏈齒列30時所形成之縫製線（即，藉由縫合線38而形成之 缝製線）更靠喷合頭部3 2側的布部分彎折。 此時’該鏈布部分係以其第1鏈布面朝向内側且鏈布剖 面呈現U字狀之方式進行彎折。藉此，於鏈布2〇上形成^ 字狀彎折之鏈布彎折部22。再者，於該情形時，鍵布2〇於 形成鏈布彎折部22時，以鏈齒列30之嚙合頭部32之至少一 - 部分相較鏈布彎折部22之外周面之位置而朝向鏈條寬度方 向之鏈布外側突出的方式進行彎折。 繼而’以上述方式將鏈布20彎折’形成鏈布彎折部之 後’加熱該鏈布20 ’進行用以保持鏈布2〇之彎折形熊的熱 固化。藉此，製造鏈齒列30之嚙合頭部32之至少—部分自 鏈布20之鏈布彎折部22起向外側突出之狀態得到維持的鍵 I49590.doc •25- 201130442 帶ίο。 接著’使以上述方式獲得之鏈帶1 〇以兩個為一組進行組 合，並使各鏈齒列30之自鏈布彎折部22突出之嚙合頭部32 彼此0§合。藉此’獲得圖2所示之本實施例1之鍵條1。 以此方式獲得之本實施例1之鏈條1中’鏈齒列3 〇之連結 部35及上腳部33係由鏈布20之鏈齒安裝部23之第2鏈布區 域25完全包覆《並且，左右之鏈布2〇之鏈齒安裝部23相對 之鏈布側端緣20a彼此接觸。 藉此’於本實施例1之鏈條1中，可無需使用例如上述專 利文獻2之被覆體，而藉由鏈布2〇之鏈齒安裝部23確實地 隱藏左右之鏈齒列30，且可使鏈齒安裝部23之第丄鏈布面 暴露於外側。 尤其於上述鏈條1中，鏈布2〇之鏈齒安裝部23係自鏈齒 列30之下腳部34起經由連結部35直至上腳部33之嚙合頭部 32側為止，連續地包覆鏈齒列3〇。因此，亦不會如上述專 利文獻2般產生鏈齒列3〇局部暴露之問題。 因此，根據本實施例1之鏈條丨，與例如先前之隱形拉鏈 =比，亦不會增加拉鏈構成零件之件數，且可整體性地穩 定覆蓋喷纟狀態下之鏈齒列30 M吏其無法自夕卜部看見，從 而可提高鏈條1之美觀性。 進而，上述鏈條1中，鏈齒列30及覆蓋該鏈齒列3〇之鏈 齒安裝部較左右之鏈布2G之相互對接的鏈布彎折部 22，配置於外部侧（表側）。藉此，鏈條i可使鏈齒安裝部23 如鑲邊般呈現立體感，故呈現出與先前之隱形拉鍵不同的 149590.doc •26· 201130442 新外觀。 再者，於本實施例1之鏈條〖中，例如亦可於鏈布2〇之鏈 齒安裝部23有目的地形成設計為如圓形或菱形等所需形狀 之孔部。藉此，可經由鏈齒安裝部23之孔部而局部看見由 鏈齒安裝部23包覆之鏈齒列30，故可增加鏈條丨之設計變 化° 進而，於本實施例1之鏈條丄中，例如於鏈齒列3〇之嚙合 狀態下，左右之鏈布20受到相互背離之方向之橫向拉力 時，存在左右之鏈布彎折部22沿相互背離之方向移動的可 能性。 然而，上述鏈條1之左右之鏈齒列3〇將受到因上述橫向 拉力而使嚙合頭部32側之部分（即，左右之鏈齒列3〇之中 央部分）向下方下沉方向之力，故鏈齒安裝部23相對之鏈 布側端緣20a不會沿背離方向移動。 因此，上述鏈條1即便左右之鏈布2〇受到橫向拉力，亦 可穩定地維持鏈齒安裝部23相對之鏈布側端緣2〇a彼此之 接觸狀態，從而可確實地防止嚙合狀態下之左右之蟑齒列 3 0暴露於外部的情形。 而且，可藉由將能夠沿左右之鏈齒列3〇滑動之滑件4安 裝於以上之本實施例丨之鏈條丨，而製造圖丨所示之拉鏈3。 又，以此方式獲得之本實施例丨之拉鏈3(或鏈條〇可較 佳用於例如圖6所示之汽車用座椅6之座套7。 圖6所示之汽車用座套7構成為覆蓋安裝於汽車用座椅6 之座墊之表面，且具有覆蓋座墊之複數個座椅狀之外表材 149590.doc •27- 201130442 料、及將彼等外表材料間連結之作為連結構件的本實施例 1之拉鏈3。 尤其於該座套7中’於汽車用座椅6之作為脊線部6a之部 位配置有拉鏈3，且沿配置有該拉鏈3之脊線部6a包覆鏈齒 列30之鏈布2〇之鏈齒安裝部23暴露於外部。 當本實施例1之拉鏈3用於上述之座套7時，鏈布2〇之鏈 布主體部21或鏈布彎折部22係縫合於座套7之外表材料。 於該情形時，拉鏈3可以鏈布2〇之鏈布主體部21之第〗鏈布 面對向於座套7之外表材料的方式，縫合於外表材料上， 或者亦可以鏈布主體部21之第2鏈布面對向於座套7之外表 材料的方式，縫合於外表材料上。 J 士於以鏈布主體部21之第1鏈布面對向於座套7之外 表材料的方式，將拉鏈3縫合於外表材料之情形時，如上 述專利文獻2(實用新型註冊第31521〇〇號公報）之〇〇18段落 斤。己載使外表材料之端部藏入收納於鏈布2〇之鏈布彎 折。卩22之内側（内周側），並將鏈布2〇之鏈布主體部η或鏈 布彎折部22縫合於外表材料。 另一方面，於以鏈布主體部21之第2鏈布面對向於座套7 之外表材料的方式，將拉鏈3縫合於外表材料之情形時， 則以鏈布20之鏈布主體部21之第2鏈布面與外表材料之外 (暴露於外部一側之面）對向的方式，以重疊之狀態縫 製鏈布主體部21與外表材料。 如此般，本實施例1之拉鏈3安裝於外表材料之座套7於 工右之鏈齒列3G處於嗜合之狀態時，鏈齒列30由鏈布20之 I49590.doc •28· 201130442 鍵齒安裝部23包覆隱蔽，並且包覆鏈齒列3〇之鏈齒安裝部 23於&車用座椅6之脊線部6a處視覺上宛如鑲邊。因此， 上述座套7不會因鏈齒列30暴露而引起美觀性降低，且可 呈現與先前之隱形拉鏈不同的新外觀。 實施例2 圖7係表示於本實施例2之鏈條中左右之鏈齒列分離之狀 態的剖面圖。圖8係對上述鏈條之鏈帶中，鏈齒列相對於 鏈布之鏈齒安裝部移動至内側之情形進行模式性說明的說 月圖圖9係表示上述鏈條之左右之鏈齒喷合之狀態的剖 面圖。 本貫施例2之鏈條2係於左右之鏈齒列3〇分離時，以鏈布 2〇·之鏈齒安裝部23'側之鏈布側端緣2〇a»於鏈條寬度方向上 相較鏈齒列30之嚙合頭部32之内周面的位置，朝向嚙合對 象側犬出之方式，設定鏈齒列3 〇與鏈布2〇'之位置關係。 再者，本實施例2之鏈條2係除了以上述方式設定該鏈布 側端緣2 0 a，與鏈齒列3 〇之嚙合頭部3 2之内周面的位置關係 以外，以與上述實施例丨之鏈條j實質相同之方式構成。因 此，於本實施例2之鏈條2中，對具有與上述實施例丨中說 明之構件及部位相同之構成者，使用相同符號進行表示， 藉此省略其說明。 本實施例2之鏈條2之鏈齒列30與上述實施例丨相同縫 合於鏈齒安裝部23,上。即，本實施例2之鏈齒列3〇係於芯 線37穿過上下腳部33、34間之狀態，且下腳部⑽觸於鏈 齒安裝部23,之第〖鏈布區域24，並且連結部35及上腳部^ 149590.doc •29- 201130442 7鏈齒安裝部23’之第2鏈布區域25所覆蓋的狀態下進行縫 製。尤其，上述鏈齒列30之上下腳部33、34係藉由缝合線 8之夕線鎖鏈針步，而同時縫合於鏈齒安裝部a，之第I鏈 布區域24、及第2鏈布區域25之第2編織組織區域乃匕。 於°亥凊形時，鏈齒列3 0藉由縫合線3 8而一面得到較強緊 固，一面縫合於鏈齒安裝部23,，但縫合線38自身可略微進 行伸縮。因此’縫合於鍵齒安裝部23,之鏈齒列3〇可藉由利 用縫合線38之拉伸，而如圖8所示，相對於彎折成u字狀之 鏈齒安裝4 23 ’朝向鏈齒安裝部23，之開口側沿鏈條寬度 方向（左右方向）進行相對移動。 因此，於本實施例2之鏈條2中，如上所述，鏈齒安裝部 23’侧之鏈布側端緣2〇a，係配置成於鏈條寬度方向上，相較 嚙合頭部32之内周面之位置，朝向嚙合對象側突出因 此，當使左右之鏈齒列30嚙合時，首先左右之鏈布側端緣 20a'將相互對接而接觸。 繼而，左右之鏈齒列30利用縫合線38之拉伸而朝向鏈齒 安裝部23’之開口側進行相對移動，藉此，各鏈齒列3〇之嚙 合頭部32相較鏈齒安裝部23，侧之鏈布側端緣2〇a，而朝向嚙 合對象側突出（參照圖8)，故可使左右之鏈齒列3〇之嚙合頭 部32相互嚙合。於該情形時’鏈齒列3〇即便由鏈布2〇，之鏈 齒安裝部23’所覆蓋，鏈齒列3〇之連結部35與鏈齒安裝部 23’之第2鏈布區域25之間有時亦會形成較小之間隙。 因此，於本實施例2之鏈條2中，可於左右之鏈齒列3〇嚙 合之前，使左右之鏈布20,之鏈齒安裝部23,側之鏈布侧端 149590.doc •30· 201130442 緣20a'相互對接而確實地接觸。 因此’當使左右之鏈齒列30嚙合時，可藉由鏈布2〇，之 鏈齒安裝部2 31而穩定地隱蔽，並且可進一步確實地防止處 於α齒合狀態之鏈齒列30自左右之鏈布側端緣20a，之間露 出。故而’本實施例2之鏈條2可進而提高美觀性c 【圖式簡單說明】 圖1係表示具有本發明之實施例丨之鏈條之拉鏈的正面 圖〇 圖2係上述鏈條之剖面圖。 圖3係表示上述鏈條之鏈布之編織組織之編織組織圖。 圖4係對將上述鏈條之鏈齒列縫合於鏈布上之方法進行 說明之說明圖。 圖5係對上述鏈條中使鏈布之一部分彎折，形成鏈布彎 折部之方法進行說明的說明圖。 圖6係表示作為具備上述鏈條之拉鏈之使用形態之一的 汽車用座套的立體圖。 圖7係表示本發明之實施例2之鏈條中左右之鏈齒列分離 之狀態的剖面圖。 〜圖2係對上述鏈條之鏈帶中，鏈齒列相對於鏈布之鍵齒 安裝邛移動至内側之情形進行模式性說明的說明圖。 圖9係表不上述鏈條之左右之鏈齒喃合狀態的剖面圖。 圖係表不安裝有被覆體之先前之拉鏈之剖面立體圖。 【主要元件符號說明】 鍵條 149590.d〇c -31 - 2 201130442 3 > 70 拉鍵 4 滑件 6 汽車用座椅 6a 脊線部 7 座套 10、71 鏈帶 20 ' 20'、72 鏈布 20a ' 20a' 鏈布側端緣 20b 鏈布側端緣部 21 ' 72a 鏈布主體部 22 、 72b 鏈布彎折部 23 、 23' 、 72c 鏈齒安裝部 24 第1鏈布區域 25 第2鏈布區域 25a 第1編織組織區域 25b 弟2編織組織區域 30、73 鏈齒列 31 鍵齒 32 嚙合頭部 33 上腳部 34 下腳部 35 連結部 37 芯線 38 縫合線 -32- 149590.doc 201130442 40 導引部 41 缝幼機針 42 通徑 42a 第1通徑 42b 第2通徑 43 穿針孔 74 被覆體 75 固定線 76 被著體 149590.doc -33-201130442 VI. Description of the Invention: [Technical Field] The present invention relates to a chain which is constructed such that a continuous chain of teeth is hidden by a chain cloth to make it difficult to see from the outside, and a key is obtained for obtaining such a key strip A method of sewing a chain of teeth that is stitched to a key cloth, and a method of manufacturing a chain of a chain to which a chain of a chain of stitches is stitched by the above-described sewing method. [Prior Art] Generally speaking, the zipper system is roughly divided into two representative types: the left after meshing; & the sprocket column is placed in the chain cloth <A zipper of a conventional 々 type which is exposed on the surface of the chain cloth, and a zipper of a stealth type (so-called zipper) which can hide the left and right sprocket rows after the splicing and can not be seen from the outside. The octagonal zipper of the octagonal occlusion has the advantage of not obstructing the design of the product because of its concealability. Therefore, it is preferably used in various clothing and shoes, and in recent years, it can also be used for seat covers for cars or trains. An example of such a hidden zipper is disclosed in an embodiment, for example, in Japanese Patent Laid-Open Publication No. Hei. No. 2006-247279 (Patent Document 1). On the other hand, it is disclosed in the Utility Model Registration No. 31521 (Patent Document 2) that the fastener element is partially hidden from the outside by mounting the covering on the surface of the left and right chain rows. Unable to see the pull button. In the zipper 7 described in Patent Document 2, a pair of chains π 1 are attached to a pair of left and right chain cloths 72 with a spiral continuous element row 73, and a covering body 74 is attached. The upper surface side of the continuous sprocket row 73 on the left and right sides; and the slider (not shown) are arranged in a movable manner along the left and right continuous key rows by a slidable 149590.doc 201130442. Each of the left and right chain cloths 72 has a chain main body portion 72a, a chain cloth bent portion 72b bent in a U shape, and a fastener element mounting portion 72c that is stitched by the continuous chain tooth row 73. The continuous chain tooth row 73 is fixed. The wire 75 is sewn to the key attachment portion 72c of the chain cloth 72. Each of the sprocket rows of the continuous sprocket row 73 has an engaging head portion, a lower leg portion extending from the engaging head portion, and a connecting portion connecting the adjacent sprocket teeth. The covering body 74 is disposed on the upper surface side of the leg portion on the continuous element row, and is sewn to the element attaching portion 72c together with the continuous element tooth row by the fixing wire 75. When the zipper 70 is attached to a product such as a seat cover or the like, the inner side of the chain bending portion 72b of the chain cloth 72 is inserted into the body 76 such as a u-shaped outer surface material, and the chain is placed. The cloth 72 is sewn with the body 76. When the zipper 70 of the patent document 2 is engaged with the left and right continuous sprocket rows 73, the chain bending portions 72b of the left and right chain fabrics 72 are in close contact with each other, so that the continuous sprocket row 73 is compared with the left and right chain The cloth f-folded portion 72b is disposed on the outer side (front side). In this case, the covering body 74 is attached to the leg portion of the continuous element row in the continuous chain element disposed on the outer side of the chain bending portion 72b. By the fact that the leg side of the continuous element 73 is hidden by the covering body 74, the continuous element 73 can be difficult or impossible to see when the zipper 7G is viewed from the upper side. Further, in the zipper 7', since the covering body 74 is disposed at a position higher than the surface of the object 76, the zipper-incorporated product can be decorated with a scent. Further, in the above-described Patent Document 2, as another embodiment, a pull-down chain is disclosed, and the covering body is fixed to the surface of the leg portion and the connecting portion of the left and right continuous fastener elements 149590.doc 201130442 by an adhesive. The foot and the connecting portion above the continuous element are covered by the covering body. In the case of such a zipper, when the continuous left and right sprocket teeth are engaged, the continuous sprocket is covered in a wider range by the covering body, so that the continuous sprocket is more difficult to see from the outside. CITATION LIST Patent Literature Patent Literature 1: JP-A-2006-247279 Patent Document 2: Utility Model Registration No. 31521 No. SUMMARY OF THE INVENTION Problems to be Solved by the Invention The above-described Patent Document 1 discloses In the previous invisible pull button, when the left and right continuous sprocket rows are engaged, the chain cloth bending portions of the left and right chain cloths are in close contact with each other 'the continuous sprocket row is compared with the left and right chain cloth bending portions Configured on the inner side (back side). Therefore, the continuous element row in the left and right meshing state is hidden by the left and right chain bending portions which are in close contact with each other and cannot be seen from the outside. However, when such a previously invisible zipper is applied to a product such as a seat cover for an automobile, when the left and right chain cloths are pulled by the seat cover or the like and are laterally pulled away from each other, they will be left and right. A gap is formed between the bent portions of the chain cloth. Therefore, there is a case where the left and right continuous element rows are exposed to the outside through the above-mentioned gap. In the previous concealed zipper, it is extremely difficult for the left and right chain cloths to maintain the concealed state of the continuous element row after the text to the lateral tension. On the other hand, in the case of the zipper 7 上述 of the above-mentioned Patent Document 2 shown in Fig. 10, although the upper portion of the continuous sprocket row 73 is hidden by the covering body 74, even the 149590.doc 201130442 continues the sprocket row 73 The covering body 74 in the joint portion is not covered. Therefore, the zipper 70 has a problem that the continuous sprocket row 73 is partially exposed and is easily seen from the left-right direction (the zipper width direction), resulting in a decrease in the aesthetics and designability of the article to which the zipper 7 is attached. Further, in the zipper 70, only the center portion of the covering body 74 is sewn to the continuous sprocket row 73 and the sprocket attaching portion 72c by the fixing wire 75, so that the side edges of the outer side of the left and right covering bodies 74 are also present. Not being fixed to the continuous element row 73 causes a problem that the side edge portion of the covering body 74 is easily curled. In the slide fastener described in the above other embodiments, the cover member is adhered to the leg portion and the joint portion of the continuous fastener element, and the upper leg portion and the joint portion are covered by the covering member. However, in the case of manufacturing such a zipper, after the continuous fastener element is sewn on the chain cloth, the adhesive body must be adhered to the continuous fastener element by the adhesive, so that the manufacturing steps of the zipper become complicated. Further, in the case of the above zipper, since the covering portion is adhered to the leg portion and the connecting portion of the continuous sprocket, the position of the covering member with respect to the continuous sprocket is fixed. Therefore, when the position of the covering body is shifted in the left-right direction when the covering body is adhered and fixed to the continuous sprocket, the position of the covering body cannot be adjusted, so that the continuous sprocket cannot be completely hidden by the covering body. Further, in the zipper, the chain cloth and the covering system are separately formed separately, so that when the covering body is adhered to the leg portion and the connecting portion of the continuous sprocket, the boundary between the key cloth and the covering body, or The side edge of the chain cloth of the chain cloth can be seen from the outside, which impairs the aesthetics of the zipper. Moreover, when the adherend is adhered to the continuous chain dentition by using an adhesive, it is difficult to adjust the amount of the adhesive applied between the two, for example, when the adhesive is 149590.doc 201130442: Bry. 'Adhesives will protrude from the covering and there is a possibility of damaging the appearance of the zipper. The other = face 'when the amount of application of the adhesive is small, the edge portion ’’ of the covering body is firmly adhered to the leg or the connecting portion above the continuous element. Therefore, there is also a possibility that the body is easily peeled off from the joint portion of, for example, a large curved piece, and the portion is exposed to the outside. Further, the zipper of the above-mentioned Patent Document 2 (that is, the zipper shown in FIG. ig or the zipper as the embodiment) is a component constituting the zipper, and has not only the chain cloth and the continuous chain # column but also the covering body. Compared with the hidden zipper before the material, the number of parts increases. As a result, manufacturing costs are increased, part management is complicated, and the number of manufacturing steps is increased. Therefore, it is desirable to reduce the number of parts constituting the zipper. Yang Ming is a researcher who has developed the above problems. The specific purpose of the research is to provide a stable and concealed continuous chain of teeth. It is not visible from the outside and the appearance is improved without causing an increase in the number of parts. a key strip for a key, a method for manufacturing a chain of stitches for stitching a chain of stitches on a chain cloth, and a key cloth for stitching a chain of stitches with a stitching method to manufacture a chain belt The manufacturing method of the chain belt. The technical means for solving the problem is to achieve the above-mentioned object. The zipper key bar provided by the present invention is characterized in that it has a left-right pair of chain cloth and a continuous chain of stitches stitched to the left and right chain cloths. The chain cloth has a chain main body portion, a fastener element portion to which the chain element row is sewn, and a chain cloth bending portion which is disposed between the chain main body portion and the element attaching portion and which is folded into a U shape. 149590.doc 201130442 The sprocket of the sprocket row has a spray head, a lower leg extending from the spray head, and a joint between the key teeth adjacent to each other; and the chain bend The folded portion is bent inside the first chain cloth surface of the chain cloth 4 can', and the sprocket line is disposed in the element attaching portion opposite to the first chain surface of the key cloth On the second chain fabric side of the side, the fastener element attaching portion has a link region contacting the lower leg portion of the element row, and the connecting portion and the upper portion covering the element row and The above-mentioned chain is used to make the above-mentioned i-th chain cloth surface The second region distribution chain exposed to the outside of the tooth row of the perpendicular leg portion above the chain by the sewing line based on said key stitched lsl women. When the first chain fabric region and the second chain fabric region of the cymbal are engaged with each other, the opposite chain-side end edges of the left and right fastener element attaching portions are in contact with each other. In the zipper chain of the present invention, it is preferable that the chain woven fabric is woven, and the warp thread disposed in the second chain region of the sprocket attachment portion is used in the same manner as the sprocket attachment portion. 〗 The thin line of the warp of the chain cloth area. In this case, it is preferable that the thickness of the warp disposed in the second chain region is set to 30 dtex or more and 1 50 dtex or less. Further, it is preferable that the thickness of the warp of the first chain fabric region, the key cloth sound folding portion, and the chain main body portion disposed in the fastener element mounting portion is set to 160 dtex or more and 5 inches. Below dtex. Further, preferably, the second chain fabric region has a plurality of warp threads woven into a 171 structure alternately passing through the front side of at least one weft thread and the inner side of one weft thread. 149590.doc 201130442 In the case of a sea, it is preferable that the second chain fabric region has a warp thread which is woven into a 2/2 structure which is alternately bound to the front side of the two weft threads and the inner side of the two weft threads. Preferably, the second chain fabric region has a second weave region disposed on the i-th chain region side, and a second weave region disposed on the chain-side edge edge side, and the k-woven tissue region has the above-mentioned In the zipper chain of the present invention, the second knitted fabric region is more woven into the zipper chain of the present invention. Preferably, the chain side edge of the key attachment portion is separated from the left and right sprocket rows. At this time, it is disposed so as to protrude toward the meshing object side from the position of the inner peripheral surface of the meshing head of the fastener element. Secondly, the sewing method of the sprocket line provided by the present invention, as the main feature of the basic structure, is that it has an engaging head, a lower leg portion extending from the spray head, and a joint adjacent to each other by the sewing machine. The method of sewing the continuous row of the connecting portions between the key teeth is performed on the stitching method of the fastener element of the chain cloth, and includes the following steps: the sewing machine of the sewing machine is arranged to have a stray through the chain cloth and the chain stupid a guide portion for the diameter of the link, the sprocket attachment portion of the chain cloth is bent into a 1 shape so as to be oriented outward; and is guided into the passage of the guide portion; The element row is guided to be bent into a shape by a posture in which the upper and lower leg portions and the connecting portion are in contact with each other or toward a second chain cloth surface opposite to the second chain cloth surface of the chain cloth. Leading to the inside of the element attaching portion in the diameter; and suturing the upper and lower leg portions of the element row while the chain element mounting portion and the element row are passed through the through hole 149590.doc in the above lower leg -9- 201130442 The first chain region of the element attaching portion that is in contact with the second chain region of the element attaching portion that is contacted by the upper leg portion. Moreover, the method for manufacturing a fastener tape according to the present invention is characterized by comprising the steps of: suturing a part of the chain cloth of the element row by the sewing method having the sprocket array of the above configuration, The surface is folded in a U shape so as to face the inner side to form a chain bending portion, and the chain cloth is heated to maintain the shape of the chain cloth. Advantageous Effects of Invention In the chain for slide fasteners of the present invention, the chain bending portion of the chain cloth is bent inside the first y chain cloth surface (in other words, the second chain cloth surface is outside), and the continuous chain is further The dentition is disposed on the second chain surface side of the element attaching portion. Further, the sprocket attachment portion of the chain of the chain has a first link fabric region that contacts the leg portion under the element row and a coupling portion and an upper leg portion that cover the sprocket row, and the ith is used when the chain is used. The chain cloth surface is exposed to the outer second chain region, and the lower leg portion of the element row is sewn to the first chain region and the second chain region of the element attaching portion by the sewing line. Further, when the left and right element rows are combined, the left and right element attaching portions are in contact with each other with respect to the chain side edge. In the chain having the present invention, the continuous sprocket is sewn to the sprocket in a state of being covered by the sprocket mounting portion of the chain cloth, and the chain of the left and right sprocket mounting portions is opposite. The cloth-side end edges are in a state of being in contact with each other when the left and right element rows are halved. Thereby, the chain element row of the right and left does not need to use the covering body of the above-mentioned Patent Document 2, and can be stably concealed by the element attaching portion of the chain cloth. Further, the connecting portion of the sprocket row and the sprocket mounting portion of the upper leg portion are continuously extended from the chain 149590.doc 201130442 cloth bending portion. Therefore, as in the case of the above-mentioned Patent Document 2, it is not possible to cause a problem that the covering body is curled at a portion of the fastener element which is bent at a large curvature. Further, the left and right element attaching portions are in contact with each other with respect to the end side edges of the chain cloth, so that the end edges of the chain cloth are formed so as not to be easily curled. Therefore, the chain of the present invention can be more stably hidden from the outside without obscuring the shackle of the zipper constituting part as compared with, for example, the previous concealed zipper, so that the chain can be prevented from being seen from the outside, thereby improving The aesthetics of the chain can further improve the aesthetics of the article to be mounted with the above chain. In particular, in the chain of the present invention, the element row and the element attaching portion covering the element row are disposed on the outer side (front side) of the link bending portion of the chain cloth, so that the chain can be given a three-dimensional shape when the chain is used. Sense, which can present a new look that is different from previous concealed zippers. In addition, in the case of the above-mentioned chain, when the chain cloth of the left and right sides is subjected to the lateral pulling force in the direction away from each other in the meshing state of the element row, even if the left and right chain bending portions move in the direction away from each other, The chain tooth mounting portion of the chain cloth securely sutures the element row in the engaged state, so that the position can be maintained. Therefore, the state in which the opposite chain-side end edges of the element attaching portions are in contact with each other can be maintained, so that the element rows can be stably hidden by the left and right element mounting portions. Further, in a state in which the opposite end edges of the fastener element attaching portions are in contact with each other, it is preferable that the left and right chain side edge edges are completely in contact with each other throughout the longitudinal direction of the chain fabric. Including, for example, a state in which at least one of the left and right side edges of the chain cloth abuts each other, and even if a small gap is formed between the left and right chain side edges due to the shape of the 149590.doc -11, 201130442, etc. of the key strip, When the chain is observed from the outside, the state of the element row is difficult or impossible to see from the edge of the left and right chain side. In the chain of the present invention, the chain fabric is woven, and the warp yarn disposed in the second chain fabric region of the fastener element mounting portion is used in the third chain which is disposed in the fastener element portion. The thin line of the warp of the cloth area. Thereby, the cloth thickness of the second chain fabric region of the fastener element mounting portion can be made thinner than the second chain fabric region. Therefore, when the slider is mounted in the chain, even if the element mounting portion is in sliding contact with the inner wall surface of the slider, the frictional force generated between the element mounting portion and the inner wall surface of the slider can be reduced, thereby making the slider easy to slide. . Further, since the second chain region can be easily formed by bending the warp yarn ' of the second chain region of the element attaching portion, the second chain region can be easily formed along the chain row. In the case where the outer peripheral surface of the connecting portion and the upper leg portion is bent by 0, the thickness of the warp disposed in the second chain region can be set to 30 dtex or more and 150 dtex or less, and particularly set to 50 dtex or more. Further, the thickness of the second chain fabric region is effectively reduced by 100 dtex or less, and the second chain fabric region can be bent to be surely bonded to the joint portion and the upper leg portion of the element row. Moreover, the thickness of the warp of the third chain fabric region, the chain bending portion, and the chain main body portion disposed in the element attaching portion is set to be 16 〇 dtex or more and 5 〇〇 dtex or less. By setting the thickness of the warp of the first key cloth region of the fastener element mounting portion within the above range, the rigidity of the first chain fabric region in the longitudinal direction of the chain fabric can be improved, so that the second chain cloth can be used. The region is stably sutured with sprocket 149590.doc 12- 201130442 column. Further, the rigidity of the fastener fabric bending portion and the chain main body portion in the longitudinal direction of the chain can be improved by setting the thickness of the warp of the chain fabric bending portion and the chain main body portion within the above range. For example, when the chain of the chain is sewn to the seat cover of an automobile or the like as a product to be coated, the seat cover is formed relatively thickly. Therefore, if the main body portion of the link fabric is formed to be relatively soft, when the key cloth is sewn to the seat cover, the chain cloth cannot withstand the tension of the suture and cause a wavy contraction on the chain cloth, resulting in defects such as sewing shrinkage. The situation is ambiguous. On the other hand, by increasing the rigidity of the chain fabric bending portion and the chain main body portion in the longitudinal direction of the chain fabric as described above, it is possible to prevent sewn shrinkage and the like even when the chain fabric is sewn to a thick product. The situation has arisen. The second chain fabric region of the chain stalks has a plurality of 1/1 tissues woven into alternately on the front side of at least one weft and one side of one weft. <The spring thereby increases the linear density of the second chain fabric region, thereby improving the strength and durability of the second chain fabric region in which the inner wall surface of the member (7) is in sliding contact. Further, in this case, the second chain fabric region of the fastener element attaching portion has a weave structure line in which the front side of the root weft thread and the back side of the two weft threads alternately pass, so that moderate flexibility can be imparted to the second chain fabric region. The second chain fabric region is formed to be bendable. Moreover, the second chain cloth area has a Μ organization 7 <When the sprocket row is sewn to the sprocket mounting portion, the sewing machine needle is apt to pierce the second chain region of the sprocket mounting portion. In particular, in this case, the second chain fabric region of the fastener element mounting portion is disposed; the second weave region of the chain fabric region side; and the second weave disposed at the edge side of the key fabric side end 149590.doc 13 201130442 The tissue region 'the first weave tissue region has more warp threads woven into the 2/2 tissue than the second weave tissue region. Thereby, the first knitted tissue region disposed on the first chain fabric region side of the second chain fabric region can be formed to be softer than the second knitted tissue region, and therefore the first knitted tissue region can be stably along the chain. The outer peripheral surface of the joint portion curved with a large curvature of the tooth row covers the joint portion. Further, in the chain of the present invention, the end side edge of the chain attachment portion is disposed so as to be aligned with the inner peripheral surface of the meshing head of the element teeth toward the meshing target side when the left and right element rows are separated. protruding. Thereby, when the left and right element rows are engaged, the left and right fastener element mounting portions can be surely brought into contact with each other with respect to the chain side end edges. Therefore, it is possible to more reliably prevent the element row in the engaged state from being exposed to the outside between the left and right element mounting portions. The sewing method of sewing the chain element provided by the present invention to the chain cloth by the sewing machine is attached to the sewing part of the sewing machine, and is provided with a guiding portion including a diameter which can pass through the chain cloth and the chain tooth row, and the chain cloth is firstly provided. The element attaching portion is bent into a U shape so that the second chain cloth surface faces outward, and is guided into the diameter of the guiding portion. Next, 'the chain of teeth is guided by the upper and lower leg portions and the connecting portion or toward the second chain cloth surface of the key cloth, and guided to the chain which is bent into 1; the shape is guided into the path. On the inner side of the portion, the fastener element mounting portion and the element row are passed through the diameter, and the upper and lower legs of the element row are simultaneously sewn to the first chain region and the second chain of the key portion. region. In this way, the sprocket row can be sewn to the sprocket mounting portion of the chain fabric by the seam cutting machine, and the joint portion of the sprocket row and the upper leg portion 149590.doc 14 201130442 can be covered by the sprocket mounting portion. Next, the upper and lower leg portions of the element row are sewn to the chain area and the second chain area of the element attaching portion. Further, in the method of manufacturing a fastener tape according to the present invention, a part of the chain fabric in which the fastener element is sewn by the sewing method of the above-described key row is bent in a meandering manner so that the second chain cloth surface faces inward. Forming the chain fabric_folding portion 1 Thereafter, the chain cloth is thermally cured by heating the chain cloth to maintain the bent shape of the key cloth. Thereby, the chain of the chain of the present invention described above can be stably manufactured. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the embodiments. Further, the present invention is not limited to the embodiments described below, and various modifications can be made as long as they have substantially the same configuration as the present invention and achieve the same effects. For example, the following embodiments are described for the case where the helical sprocket is sewn to the continuous sprocket row. However, the present invention is not limited thereto. Instead of the helical sprocket, the key teeth of the ore-like teeth are sewn to the chain fabric to form a chain row. Embodiment 1 FIG. 1 is a front view showing a slide fastener having the chain of the first embodiment, and FIG. 2 is a cross-sectional view of the above chain. Further, in the following description, the chain length direction of the chain of the chain is defined as the other direction. Further, in the above-mentioned chain, the width direction of the main body of the key fabric of the chain fabric (the chain width direction of the chain) is defined as the left-right direction, and in the chain, the main body of the chain fabric of the chain fabric is 149590.doc -15- 201130442 1 and the direction in which the second chain fabric is orthogonal is defined as the up and down direction. As shown in Figure 1, this embodiment! The chain link is formed by attaching the slider 4 along the continuous chain element 30 of the above chain. The zipper 3 constructed in this manner can be attached to the seat cover 7 of the automobile seat 6 as described below (see Fig. 2, the chain of the present embodiment constituting the zipper 3). 〗 〖There is a pair of left and right chain belts 10. Each of the chain belts 1' around X' has a braided chain-like chain 20, and a continuous chain of teeth entangled on the chain fabric 20%. The cloth 20 has an i-th chain fabric surface and a second chain fabric surface, and the yarn guide rod is reciprocated in the opening of the warp yarn, and weaved into the ground weft yarn to be woven. Further, each of the chain fabrics 20 has stitching. For example, the chain main body portion 21 of the product to be molded such as the seat cover 7 and the chain cloth bending portion 22 which is bent from the side edge of one of the chain main body portions 21 and bent into a U shape, and the self-chain bending portion 22 Further, the element attaching portion 23 of the element row 30 is further extended and sewn. In this case, the surface (inner peripheral surface) facing the inner side of the chain bending portion 22 is set as the first chain cloth surface, and is oriented. The surface on the outer side of the chain bending portion 22 and the surface on which the element row 3 is disposed on the element row 3 are set as the second chain cloth surface. The case where the chain fabric 20 is a woven fabric will be described. However, in the present invention, the knitted fabric may be formed of a knitted fabric. The left and right chain fabrics 20 of the first embodiment are formed so as to be engaged when the left and right sprocket rows 3 are engaged. The folded portions 22 are in contact with each other and the chain-side end edges 20a on the side of the element-toothed mounting portion 23 are in contact with each other. Further, in the present invention, when the left and right fastener elements j 30 are engaged with each other, the left and right chain cloths 2 The chain side edge 20a on the side of the element attaching portion η may be at least in contact with each other, or may be a case where the left and right chain bending portions 22 149590.doc -16 - 201130442 are not in contact with each other. The chain main body portion 21 and the chain cloth bending portion 22 of the chain cloth 20 are formed by weaving two wefts in a straight state and weaving the warp threads, as shown in Fig. 3, and the weave structure thereof. It is mainly composed of a twill fabric of 2/2 structure which is woven into the warp on the front side of the two ground wefts and the inner side of the two ground wefts. The chain main body portion 21 can be mainly composed of the twill fabric in this manner. The chain cloth bending portion 22 is formed to softly form the chain main body portion 21 and the chain cloth bending portion 22. Further, the chain cloth main body The chain side edge portion 20b of the portion 2 1 opposite to the side of the chain cloth bending portion 22 is formed by using the ηη tissue which is woven into the warp on the front side of the weft of the root and the back side of the one weft. The flat knitting structure is closed, and the portion of the chain main body portion 21 other than the chain side edge portion 2〇b, the chain bending portion 22', and the following first chain region of the chain attaching portion 23 are provided. The weaving structure of 24 is composed of the same twill weave, so that a part of the weaving structure of one of the chain main body portion 21, the chain bending portion 22, and the first chain cloth region 24 of the element attaching portion 23 is omitted in FIG. In the case of the side, each of the single wires arranged in the ground weft and the warp disposed on the chain main body portion 21 and the chain bending portion 22 are made of polyester fibers of 160 dtex or more and 5 〇〇 dtex or less. It is preferably a polyester fiber of 3 〇〇 dtex or more and 400 dtex or less. Further, in the first embodiment, the single-line and the warp-cored which are disposed on the chain main body portion 21 and the chain-bending portion 22 as the ground weft are actually used as the poly-fiber of 3 30 dtex. In the first embodiment, the 'chain main body portion 21 and the chain bending portion 22 are formed by using the warp having the thickness as described above. ' Thereby, the chain main 149590.doc 17 201130442 body portion 21 can be improved. And the rigidity of the key cloth bending portion 22 in the longitudinal direction of the chain cloth. Here, for example, when the chain is used for the seat cover 7 of the automobile seat 6, the seat cover 7 is sometimes formed to be relatively thick. In this case, when the chain of the chain is sewn to the seat cover 7 by the fixing wire, if the rigidity of the chain cloth in the longitudinal direction is insufficient, the chain cloth cannot withstand the tension of the fixing wire and is attached to the chain cloth. A situation in which a wavy contraction occurs. On the other hand, since the chain 丨 of the embodiment 可 can improve the rigidity of the chain main body portion 21 and the chain cloth bending portion 22 in the longitudinal direction of the chain fabric as described above, even if the chain cloth 20 is fixed by the fixing wire The chain main body portion 21 is sewn to the relatively thick seat cover 7', and does not cause wavy contraction on the chain cloth 20, thereby preventing occurrence of defects such as sewing shrinkage. Further, in the present invention, the material and thickness of the weft and warp of the chain fabric main body portion 21, the key fabric bending portion 22, and the following fastener element mounting portion 23 disposed in the chain fabric 2 are not particularly limited. limited. For example, the synthetic fibers or natural fibers other than the polyester fibers can be arbitrarily selected as in the above-mentioned weft and warp yarns, and the thickness of the yarn can be arbitrarily changed as needed. On the other hand, the element attaching portion 23 of the chain fabric 20 of the first embodiment has the first chain region 24 disposed on the side of the chain bending portion 22, and is disposed on the side of the chain side edge 20a of the chain fabric 20 The second chain region 25 is formed. The first chain region 24 of the element attaching portion 23 is disposed so as to continuously extend from the chain bending portion 22 of the chain fabric 20, and is in contact with the outer peripheral surface of the lower leg portion 34 of the element row 30. Further, the second chain region 25 of the element attaching portion 23 is formed from the first link region 24 of the element attaching portion 23 to the chain-side end edge 2〇a. The second link fabric region 25 covers the outer peripheral surface of the connecting portion 35 and the upper leg portion 33 so as to cover the connecting portion 35 of the element row 30 and the upper portion 149590.doc 201130442, and is configured to be left and right. When the element row 3 is engaged, the first chain cloth surface of the second chain region 25 is exposed to the outside. In the first embodiment, the first link fabric region 24 of the fastener element attaching portion 23 is the same as the link fabric main portion 21 of the key fabric 'acoustic folded portion 22 and the chain-side end edge portion 2'b. Woven tissue composition. In other words, the first chain fabric region 24 is formed by weaving two weft threads in a straight state and weaving the warp threads, and the weave structure is woven into the warp on the front side of the two weft threads. And a twill fabric of 2/2 tissues alternately running on the inner side of the two ground wefts. In this case, the warp thread disposed in the first chain fabric region 24 is the same as the chain fabric main body portion 21 and the chain fabric bent portion 22, and a polyester fiber of 16 〇 dtex or more and 5 〇〇 dtex or less is used. It is good to use polyester fiber of 3〇〇dtex or more and 4〇〇dtex or less. Further, in the first embodiment, the 33 〇 dtex polyester fiber was actually used as the first! The warp of the chain fabric area 24. On the other hand, the second chain region 25 of the element attaching portion 23 is formed by weaving a warp thread which is thinner than the first chain region 24. Further, in the first embodiment, the 'second chain fabric region 25 has the first knitted structure region 25a disposed along the link portion 35 of the element row 3〇, and the leg portion 3 along the element row 33 3 configured 2nd braided tissue region 25b. In the first and second weave regions 25a and 25b of the second chain region 25, a plurality of 1/1 tissues that are woven into the front side of one weft line and one side of the one weft line are disposed. The root meridian (hereinafter referred to as the warp of the 1/] organization), and the multiple warp threads that are woven into the 2/2 tissues of the two sides of the ground and the two sides of the two wefts (hereinafter referred to as the second warp) Organize 149590.doc 19 201130442 for 2/2). By disposing the warp of the 1/1 structure in the first and second weave regions 25a and 25b of the second chain region 25 in this manner, the first and second weave regions 2 5 a and 2 can be improved. 5 b strength and wealth wear. Further, by providing the warp of the 2 / 2 structure in the first and second knitted structure regions 2 5 a and 2 5 b, the flexibility of the first and second knitted structure regions 25a and 25b can be ensured, and Prevent the above areas from fluffing. Further, when the element row 30 is sewn to the element attaching portion 23, if the warp of the 2/2 structure is disposed in the second weave region 25b, the linear density of the second weave region 25b can be prevented from becoming excessive. Therefore, the sewing machine needle 4 can be smoothly pierced into the second braided tissue region 25b. In particular, in the chain 1 of the first embodiment, the ratio of the number of the warp threads of the 2/2 structure of the first weave region 25a of the second chain region 25 is set larger than the second weave region 25b. Specifically, in the first knitted structure region 25a of the first embodiment, the warp threads of the 1/3 organization and the warp threads of the 2/2 structure are arranged in the same number. On the other hand, in the second knitted structure region 25b of the first embodiment, the warp of the 2/2 structure is arranged in a number smaller than the number of warp threads of the tissue. Thus, the flexibility of the i-th braided tissue region 25a can be made higher by making the ratio of the number of warp threads disposed in the 2/2 tissue of the first knitted structure region 25 & 2 larger than the second braided tissue region 25t). The second braided tissue region 25b. Therefore, the first knitted region 25a can be bent along the element row 3〇 with the connecting portion 35 bent at a large curvature, and the connecting portion 35 can be easily covered by the first knitted structure region 25a. 149590.doc •20· 201130442 On the other hand, the second weave region can be made by making the ratio of the number of warp threads disposed in the 1/1 tissue of the second weave region 25b larger than that of the first weave region 25a. The line density of 25b becomes larger than the first weave region 2 5 a, thereby raising the strength of the second weave region 2 5 b. Therefore, the state in which the element row 30 is sewn to the first chain region 24 of the element attaching portion 23 and the second weave region 25b of the second chain region 25 can be stably maintained. In this case, the polyester fibers disposed in the first and second knitted structure regions 2 5 a and 2 5 b of the second chain region 25 are preferably used in a polyester fiber of 30 dtex or more and 150 dtex or less. Polyester fiber of 50 dtex or more and 100 dtex or less. Further, in the first embodiment, the 84 dtex polyester fiber was actually used as the warp of the first weave region 25a, and the 50 dtex polyester fiber was used as the warp of the second weave region 25b. By making the warp disposed on the second link fabric region 25 thinner than the warp disposed on the first link fabric region 24, the thickness of the second link fabric region 25 can be made thinner than the first link fabric region. 24, and the second chain fabric region 25 is formed by being easily bent. Therefore, the second chain region 25 of the element attaching portion 23 can be easily bent along the outer peripheral surfaces of the connecting portion 35 and the upper leg portion 33 of the element row 30. The element row 30 of the chain 1 of the first embodiment is formed into a continuous shape by forming a monofilament made of a synthetic resin such as polyester into a spiral shape. Each of the sprocket teeth 3 1 constituting the sprocket row 3 has an engaging head portion 3, and the upper and lower leg portions 33, 34 are extended from the engaging head portion 3 2 in the chain width direction, and the upper leg portion 33 or the lower leg portion is provided. The end portion of the portion 34 is connected to the connecting portion 35 which is adjacent to the lower leg portion 34 or the upper leg portion 33 of the sprocket 31 in the front-rear direction. The element row 30 is in a state in which the core wire 37 passes between the upper and lower leg portions 33, 34, 149590.doc • 21 · 201130442, and the lower leg portion 34 contacts the first chain cloth region 24 of the element attaching portion 23 and the joint portion 35 and the upper leg portion 33 are sewn to the element attaching portion 23 in a state covered by the second chain region 25 of the element attaching portion 23. Especially in this case, the upper and lower leg portions 33, 34 of the element row 30 It is sewn to the first chain region 24 of the element attaching portion 23 and the second weave region 25b of the second chain region 25 by a multi-wire chain stitch including the upper and lower stitches 38. Next, a method of manufacturing the chain i of the first embodiment having the above configuration will be described. The chain 1 of the first embodiment is manufactured by separately manufacturing the left and right chain belts 1 〇, and then engaging the sprocket rows 3 左右 of the left and right chain belts 10 . First, in order to make a chain belt 1 〇, a continuous chain element 30 is sewn to the chain fabric 2 by using a sewing machine. Here, as shown in Fig. 4, the sewing portion of the sewing machine for sewing has two rows of sewing machine needles 41, and the element rows 30 are sewn to the guide portion 40 of the chain cloth 20. In the sewing part of the sewing machine, the two rows of sewing machine needles are arranged in the direction in which the chain cloth 20 and the element row 3 are displaced from each other. Further, in the guide portion 4, the chain cloth 2 can be arranged. And a diameter through which the element row 3 〇 passes, and a needle hole 43 through which the sewing machine needle 41 of the two rows can pass in the up and down direction. In this case, the pass i42 of the loading guide 4G has a chain The second diameter 42a through which the sprocket attachment portion 23 and the element row 3 〇 are bent, and the portion corresponding to the main body portion and the chain bending portion of the woven fabric 2 The second through hole 42 b that has passed through. The needle insertion hole 43 is formed so that the sewing needle 41 of the two rows can pass through the second diameter 42b of the guide portion buckle, and along the chain cloth 2 and the element mounting portion. 23: 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 The guide portion of the chain guide 20 is guided to the diameter 42 of the guide portion 40 while being bent into a U-shape. The guide portion 40 is used. In the case where the sewing machine sews the element row 3 to the chain cloth 20, first, the chain cloth 2 〇 and the element row 3 〇 are guided and guided into the diameter 42 of the guiding portion 40. 2〇 before being introduced into the diameter 42 of the guide portion 4, the fastener element mounting portion 23 of the chain cloth 20 is placed by the guide portion (not shown) disposed on the upstream side of the guide portion 4A. In the chain cloth 20 of the first embodiment, the chain cloth 20 is placed on the inner side (the first chain cloth surface faces outward). In the warp of the second chain fabric region 25, a line thinner than the first chain fabric region 24 is used, and the ratio of the warp of the 2/2 tissue disposed in the first weave region 25a of the second chain fabric region 25 is set. The second weave region 25b is higher than the second chain region 25 of the second chain region 25. Thereby, the second chain region 25 of the element attaching portion 23, in particular, the second weave region 25b of the second chain region 25 is formed as Since it is easy to bend into a U shape, when the chain cloth 20 passes through a guide portion (not shown), the fastener element mounting portion 23 can be easily bent along the upper and lower leg portions 33, 34 and the chain along the element row 30. The shape of the peripheral surface of the guide portion 40 is introduced into the diameter 42 of the guide portion 40 in a state in which the fastener element is bent in a U-shaped manner. The spiral element row 30 is inserted between the upper and lower leg portions 33 and 34, and is disposed inside the chain tooth mounting portion 23 of the chain cloth 20 which is bent into a U shape (inner circumference 149590.doc -23- The 201130442 side is combined with the chain cloth 20 and introduced into the first diameter 42a of the guide portion 4A. At this time, the 'stolen row 30 is in contact with (or toward) the element attaching portion 23 The second chain fabric surface of the first chain fabric region 24, and the upper leg portion 33 and the coupling portion 35 are in contact with (or facing) the second chain fabric surface of the second chain fabric region 25 of the fastener element mounting portion 23, and the engaging head The portion 32 is guided to the inside of the element attaching portion 23 in a posture toward the opening side of the fastener element mounting portion 23 bent in a U shape. Next, the chain cloth 20 and the chain window array 30 introduced into the diameter 42 of the guide portion 40 are held in a specific bending shape and positional relationship, and are conveyed along the diameter 42 to the downstream side. At the same time, the two rows of sewing machine needles 41 are reciprocated in the vertical direction via the needle insertion holes 43' disposed in the guide portion 4, thereby stitching the upper and lower leg portions 33, 34 and the core wire 37 of the element row 30 to the key. The sprocket mounting portion 23 of the cloth 20. At this time, the upper and lower leg portions 33, 34 of the element row 30 are stitched to the element attaching portion 23 which is contacted by the lower leg portion 34 by the multi-line lock key step including the upper thread and the lower thread suture line 38. The second knitted fabric region 25b of the second chain region 25 of the fastener element mounting portion 23 in contact with the first chain fabric region 24 and the upper leg portion 33, in particular, the 'sprocket mounting portion 23 in the first embodiment The first chain fabric region 24 is composed of a twill fabric as described above, and the warp yarn of the second weave region 25b of the second chain fabric region 25 of the fastener element mounting portion 23 is not only 1/1. The organization's meridians' also use the 2/2 organization's meridians in a specific proportion. Therefore, the sewing machine needle 41 can be smoothly pierced through the first knitted fabric region 24 of the sprocket attachment portion 23 and the second knitted tissue region 25b of the second fastener fabric region 25, whereby the sprocket row 30 can be placed up and down. The leg portions 33 and 34 are stably sewn to the first woven tissue region 25b of the first 149590.doc.24·201130442 chain fabric region 24 and the second chain fabric region 25. Further, the chain fabric 2 in which the element rows 3 are sewn by the sewing machine needle 41 is conveyed to the downstream side by a conveying mechanism (not shown) disposed in the sewing machine, and then collected. By performing the sewing step as described above, the upper and lower leg portions 33, 34 and the connecting portion 35 are covered by the element attaching portion 23 of the chain cloth 20, and the engaging head portion 32 is disposed in the U-shaped chain. The element row 30 is sewn to the fastener tape 1 of the chain fabric 20 in the state of the opening side of the tooth attachment part 23. When the sewing step is completed, as shown in Fig. 5, a step of bending a portion of the chain fabric 20 to which the element rows 30 are stitched is performed to form the chain bending portion 22. Specifically, in this step, the sewing line formed by the stitching of the fastener element row 30 (i.e., the sewing line formed by the suture 38) is firstly sprayed. The cloth portion on the side of the head portion 3 2 is bent. At this time, the portion of the chain fabric is bent such that the first chain cloth surface faces inward and the chain cloth cross section has a U-shape. Thereby, a chain-like bent portion 22 bent in a chevron shape is formed on the chain fabric 2''. Further, in this case, when the key cloth 2 is formed to form the chain bending portion 22, at least one portion of the engaging head portion 32 of the element row 30 is compared with the outer peripheral surface of the chain bending portion 22. The bending is performed in such a manner as to protrude outward from the outer side of the chain in the width direction of the chain. Then, the chain cloth 20 is bent in the above manner to form a chain cloth bent portion, and then the chain cloth 20 is heated to perform heat curing of the bent bear for holding the chain cloth 2 . Thereby, at least a portion of the engaging head portion 32 of the sprocket row 30 is formed to be held outward from the chain bending portion 22 of the chain fabric 20, and the key I49590.doc • 25-201130442 is ίο. Then, the chain belts 1 obtained in the above-described manner are combined in a group of two, and the engaging head portions 32 of the respective element rows 30 projecting from the chain bending portion 22 are engaged with each other. Thereby, the key bar 1 of the first embodiment shown in Fig. 2 is obtained. The link portion 35 and the upper leg portion 33 of the chain element row 3 in the chain 1 of the first embodiment obtained in this manner are completely covered by the second chain region 25 of the element attaching portion 23 of the chain cloth 20. Further, the fastener element mounting portions 23 of the left and right chain fabrics 2 are in contact with each other with respect to the chain side edge 20a. Therefore, in the chain 1 of the first embodiment, it is possible to surely hide the left and right element rows 30 by the fastener element mounting portion 23 of the chain cloth 2 without using the covering body of the above-mentioned Patent Document 2, for example. The third chain cloth surface of the element attaching portion 23 is exposed to the outside. In particular, in the chain 1 described above, the fastener element mounting portion 23 of the chain fabric 2 is continuously coated from the lower leg portion 34 of the element row 30 via the coupling portion 35 to the engagement head portion 32 side of the upper leg portion 33. The dentition is 3〇. Therefore, the problem of partial exposure of the element row 3 is not caused as in the above Patent Document 2. Therefore, according to the chain raft of the first embodiment, compared with, for example, the previous concealed zipper, the number of the components of the zipper is not increased, and the sprocket row 30 in the sneezing state can be stably covered integrally. Can not be seen from the evening, so as to improve the aesthetics of the chain 1. Further, in the chain 1, the element row 30 and the element bending portion 22 which covers the element attaching portion of the element row 3A and the left and right chain pieces 2G abut each other on the outer side (front side). Thereby, the chain i can make the element mounting portion 23 have a three-dimensional feeling like a edging, so that it exhibits a new appearance different from the previous invisible key 149590.doc • 26· 201130442. Further, in the chain of the first embodiment, for example, a hole portion of a desired shape such as a circular shape or a rhombus shape may be purposely formed in the element mounting portion 23 of the chain cloth 2 . Thereby, the element row 30 covered by the element attaching portion 23 can be partially seen through the hole portion of the element attaching portion 23, so that the design change of the chain link can be increased. Further, in the chain of the first embodiment, For example, in the meshing state of the element row 3〇, when the left and right chain cloths 20 are subjected to the lateral pulling force in the direction away from each other, there is a possibility that the left and right chain cloth bending portions 22 move in the direction away from each other. However, the left and right element rows 3〇 of the chain 1 are subjected to the force of the portion on the side of the engaging head 32 (i.e., the central portion of the left and right element rows 3〇) falling downward due to the lateral pulling force. Therefore, the chain-tooth attachment portion 23 does not move in the direction away from the chain-side end edge 20a. Therefore, even if the chain 1 is subjected to the lateral pulling force, the chain 1 can stably maintain the contact state of the element attaching portions 23 with respect to the chain side edge 2〇a, thereby reliably preventing the meshing state. The left and right molar rows 30 are exposed to the outside. Further, the slide fastener 3 shown in Fig. 制造 can be manufactured by mounting the slider 4 which can slide along the left and right element rows 3 to the chain 本 of the above embodiment. Further, the zipper 3 of the present embodiment obtained in this manner (or the chain 〇 can be preferably used for, for example, the seat cover 7 of the automobile seat 6 shown in Fig. 6. The seat cover 7 for an automobile shown in Fig. 6 is constituted. In order to cover the surface of the seat cushion mounted on the seat 6 for an automobile, and having a plurality of seat-shaped outer surfaces covering the seat cushion, 149590.doc • 27- 201130442 materials, and connecting the outer materials thereof as a joint member In the seat cover 7, a zipper 3 is disposed in a portion of the seat cover 7 as a ridge portion 6a, and is covered with a ridge portion 6a in which the zipper 3 is disposed. The fastener element mounting portion 23 of the chain sprocket 30 is exposed to the outside. When the zipper 3 of the first embodiment is used for the above-described seat cover 7, the chain fabric main body portion 21 or the chain cloth bending of the chain cloth 2 The folded portion 22 is sewn to the outer surface of the seat cover 7. In this case, the zipper 3 can be stitched to the outer surface of the seat cover 7 by the chain cloth of the chain cloth main body portion 21 of the chain cloth 2 On the outer surface material, or the second chain cloth of the main body portion 21 of the chain cloth may face the material outside the seat cover 7, and be stitched to the outer surface. In the case where the first chain cloth of the main body portion 21 of the chain fabric faces the outer surface of the seat cover 7, the zipper 3 is sewn to the outer surface material, as in the above-mentioned Patent Document 2 (Practical Application Registration) In the case of the 35th 〇〇 〇〇 ) ) 段落 段落 。 。 。 。 。 。 。 。 。 。 。 315 315 315 315 315 315 315 315 315 315 315 315 315 315 315 315 315 315 315 315 315 315 315 315 315 315 315 The chain main body portion η or the chain cloth bending portion 22 of the chain fabric is sewn to the outer surface material. On the other hand, the second chain cloth of the chain main body portion 21 faces the outer surface of the seat cover 7, When the zipper 3 is sewn to the outer surface material, the second chain fabric surface of the chain fabric main body portion 21 of the chain fabric 20 is overlapped with the outer surface material (the surface exposed to the outer side). The chain main body portion 21 and the outer surface material are sewn. Thus, when the zipper 3 of the first embodiment is attached to the seat cover 7 of the outer material in the state in which the sprocket row 3G of the right side is in a state of being incompetent, the sprocket row 30 is chain-wound. 20 I49590.doc •28· 201130442 The key tooth mounting portion 23 is covered and concealed, and the sprocket mounting portion of the sprocket row 3 包覆23 is visually like a rim at the ridge line portion 6a of the & car seat 6. Therefore, the seat cover 7 is not exposed to the appearance of the element row 30, and the appearance is reduced, and can be different from the previous concealed zipper. [Embodiment 2] Fig. 7 is a cross-sectional view showing a state in which the left and right element rows are separated in the chain of the second embodiment. Fig. 8 is a chain of the above chain, the element row being opposite to the chain cloth. FIG. 9 is a cross-sectional view showing a state in which the left and right fasteners of the chain are sprayed. The chain 2 of the present embodiment 2 is attached to the left and right fasteners. When the column 3 is separated, the inner peripheral surface of the engaging head portion 32 of the element row 30 in the chain width direction is the chain side edge 2〇a» on the side of the chain attaching portion 23' of the chain cloth 2'. The position of the chain tooth row 3 〇 and the chain cloth 2 〇 ' is set in such a manner as to be toward the side of the meshing object. Further, in the chain 2 of the second embodiment, in addition to the positional relationship between the end surface edge 20 a of the chain fabric side and the inner circumferential surface of the meshing head portion 3 2 of the element row 3, The chain j of the embodiment is constructed in substantially the same manner. Therefore, in the chain 2 of the second embodiment, the same components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof will be omitted. The element row 30 of the chain 2 of the second embodiment is sewn to the element attaching portion 23 in the same manner as the above-described embodiment. That is, the sprocket row 3 of the second embodiment is in a state in which the core wire 37 passes between the upper and lower leg portions 33, 34, and the lower leg portion (10) touches the sprocket mounting portion 23, the zipper region 24, and is connected. The portion 35 and the upper leg portion 149590.doc • 29-201130442 7 The sewing is performed in a state in which the second chain cloth region 25 of the fastener element mounting portion 23' is covered. In particular, the upper and lower leg portions 33, 34 of the sprocket row 30 are stitched by the shackle of the suture 8 while being stitched to the sprocket mounting portion a, the first link region 24, and the second link. The second weave region of the region 25 is a ridge. At the time of the 凊 凊 shape, the sprocket row 30 is strongly tightened by one side of the suture 38, and is sewn to the sprocket mounting portion 23, but the suture 38 itself can be slightly expanded and contracted. Therefore, the stitching of the fastener element mounting portion 23 can be performed by the use of the suture 38, and as shown in Fig. 8, the orientation of the fastener is bent in a u-shaped shape. The element side of the element attaching portion 23 is relatively moved in the chain width direction (left-right direction). Therefore, in the chain 2 of the second embodiment, as described above, the end side edge 2〇a of the element attaching portion 23' side is disposed in the chain width direction with respect to the inside of the engaging head 32. The position of the circumferential surface protrudes toward the meshing object side. Therefore, when the left and right element rows 30 are engaged, the left and right chain side edge 20a' will be butted against each other. Then, the left and right element rows 30 are relatively moved toward the opening side of the element attaching portion 23' by the stretching of the suture 38, whereby the engaging head 32 of each element row 3 is compared with the element mounting portion. 23, the side edge side edge 2〇a of the side protrudes toward the meshing target side (see Fig. 8), so that the engaging head portions 32 of the left and right element rows 3〇 can be engaged with each other. In this case, the 'stooth row 3' is covered by the element attaching portion 23' of the chain cloth 2, and the connecting portion 35 of the element row 3〇 and the second link region 25 of the element attaching portion 23' Sometimes a small gap is formed between them. Therefore, in the chain 2 of the second embodiment, before and after the left and right element rows 3〇 are engaged, the left and right chain cloths 20, the chain tooth mounting portions 23, and the side cloth side ends of the side cloths 149590.doc • 30· 201130442 Edge 20a' is in direct contact with each other. Therefore, when the left and right element rows 30 are engaged, the chain element mounting portion 2 31 can be stably concealed by the chain cloth 2, and the element row 30 in the α-toothed state can be further reliably prevented. The left and right chain side edge 20a are exposed between each other. Therefore, the chain 2 of the second embodiment can further improve the appearance c. [Brief Description of the Drawings] Fig. 1 is a front view showing a zipper having a chain of an embodiment of the present invention. Fig. 2 is a cross-sectional view of the chain. Fig. 3 is a view showing the knitting structure of the weave structure of the chain cloth of the above chain. Fig. 4 is an explanatory view for explaining a method of sewing the chain element row of the chain to the chain cloth. Fig. 5 is an explanatory view for explaining a method of bending a part of the chain cloth to form a chain bending portion in the chain. Fig. 6 is a perspective view showing a seat cover for an automobile which is one of the use forms of the slide fastener having the above chain. Fig. 7 is a cross-sectional view showing a state in which the left and right element rows are separated in the chain of the second embodiment of the present invention. Fig. 2 is an explanatory view schematically showing a case where the element row of the chain is moved to the inner side with respect to the fastener element mounting of the chain cloth in the chain belt of the chain. Fig. 9 is a cross-sectional view showing the state in which the left and right strands of the above-mentioned chain are spliced. The diagram shows a cross-sectional perspective view of the previous zipper of the covering. [Main component symbol description] Key bar 149590.d〇c -31 - 2 201130442 3 > 70 Pull key 4 Slider 6 Car seat 6a Ridge line 7 Seat cover 10, 71 Chain belt 20 ' 20', 72 Chain cloth 20a '20a' Chain side edge 20b Chain side edge portion 21' 72a Chain body portion 22, 72b Chain bending portion 23, 23', 72c Chain mounting portion 24 First chain region 25 2nd chain fabric region 25a 1st braided tissue region 25b 2 braided tissue region 30, 73 sprocket row 31 key teeth 32 meshing head 33 upper leg portion 34 lower leg portion 35 joint portion 37 core wire 38 suture -32- 149590. Doc 201130442 40 Guide part 41 sewing machine needle 42 diameter 42a first diameter 42b second diameter 43 needle hole 74 covering body 75 fixing line 76 being held 149590.doc -33-