M423469 五、新型說明： 【新型所屬之技術領域】 本創作係指一種雙層式蝌蚪形鏈齒缝合之拉鏈(二)，係指一種 布帶為中間而上、下層係為蝌蚪形輪廓鏈齒所組成之鏈條，可進 -步包括密封條，亦可進-步包括-用於開合該拉鏈之拉頭，該 拉頭並樞設有滾軸式壓輪的拉頭。 【先前技術】 月’考圖〜圖二所示係為習用尼龍拉鍵鍵齒結構，主要係 以圓條形的雜單線捲繞和成形為巾心呈扁_空^的螺旋形條 狀線圈’所述的螺旋形條狀賴鱗螺距，以左旋向和右旋的螺 方疋形線圈為-㈣兩排鏈齒(5)，铜姉對兩排_的扁圓折彎 外雜分別具有齒頭(51)以及與齒頭⑼相連的鏈齒身(52)，而前 述習:之尼龍拉鏈鏈齒與布帶車縫連結為尼龍拉鏈，在使用時雖 向拉時有抗拉作用，但在橫向朝中間推合時，由於鍵齒頭 頂住，_在_，科法分何乘之機，-些盜賊只要 =的筆頭端往鏈齒扣合的間隙處刺下，該左、右邊鍵齒就 :it形，讀大大降低傳統拉鏈在箱包上使用的安全性p 乃解St創作人之帽專利第助咖827痛號專利案 與其他布:：等=創作乃_於習用雙層鏈齒之拉鏈當其 在•雙齒無論在:1==由產品加工後’在 -*時_、_用在轉:處=:=: 易變形而降低相互緊扣的賊’經過不_研究與測試，縫於創 作出一種雙層式蝌蚪形鏈齒縫合之拉鏈(二）。 是以本創作之主要目的乃在於提供一種雙層柄科形鍵齒縫 合之拉鏈(二)，*位於上方之上層鍵條之鏈齒受尖端碰刺_，社 層會下彎，但位於下狀下層鏈條之左、右兩側的___ 好緊密扣合而撐住，俛上層鏈條之鏈齒沒有下彎的機會，不受内、 外受力及轉祕能轉變型而魏不變，且射顧拉鍵^向受 拉力以及拉鏈在轉角處不因摔撞或碰尖端物而裂開。 本創作之次-目的乃在於提供—種雙層式餐形鏈齒縫合之 拉鏈㈡’其左、右布帶進—步設有軟性之密封條，該密封_好 可填補該上、下層鏈條之齒排解成的間距，當經由拉頭合齒而 扣合時’左、右賴纽鏈麟離中之软質密封條會由該上、 下層鏈條之鏈齒緊扣不鬆動而令密封條橫向受力緊迫在一起，r 達到防氣、防水、防尖銳物撞擊而破裂之優點，而由於辦科碗 齒較一般尼錄鏈敍扣後·_娜，可確保約 條被擠壓、充塞軸軸不_騎彎哺開，並可進d 配合上密封條、下密封條而達到全面性防水、防氣、防爆j 進功效。 本創作之再—目的乃在於提供—種朗綱鄉鏈齒缝合之 拉鏈㈡，係可進-步包括一用於開合前述拉鏈之拉頭，該拉頭之 上、下護板分別樞設H以上之雜式壓輪，令位於上、下 層之各滚軸式壓輪限制上、下層鏈條合齒(扣合)後之中間厚度，以 M423469 相對令該分別柩設於上、下護板的滚軸式壓輪之輪面分別緊貼附 於齒面而達到如一般齒輪與齒輪之水平準位上、下相亙對應的位 置，如此可確保上、下層左側與右侧之鏈齒頭部在同一水平準位 進行合齒，藉纽拉社、下魏所設之滾軸式壓輪 可以一來減少摩擦阻力，二來精準合齒並使密封條穩定擠壓在一 起，如此比在-般傳綠之雙層拉鏈在滑動度及合齒精確度更佳、 更穩定、更滑順。 本創作之又-目的乃在於提供—種雙層朗科形鏈齒縫合之 拉鏈(一)’魏可更進—步棚σ前述_往獅細隔板中間 位置設有舌型平衡導片，使鏈齒合齒時水平方向各就各位，順 而準確的合齒。 、 【新型内容】 一種雙層式綱·形鏈紐合之拉鏈㈡，係指—種布帶為中間 而緊互扣的上、下層料由糾雜廓之職所組狀鏈條，可 在與其他顿、皮料等面料猶箱包舰鱗相關產品 \在使科’無論在由上往下紅外來力杨下往上壓之 凸出力讀_包、_補祕拉鏈触軸咬合 容易變形而降低相互緊扣的強度時 : 失，因為當位於上方^爲敵 _、、=構了以彌補上述缺 下f，但位於〜層:::鏈齒受尖端碰刺時，該上層會 密扣人而仏 右__辦_齒剛好緊 受力及轉^ ’使上層鏈條之鏈齒沒有1^的機會，不受内、外 献维持變型而功能不變，且增強拉鏈橫向受拉力以 5 M423469 及拉鏈在轉角處不因摔撞或碰尖端物而裂開；本創作之左、右布 帶可進-步財軟性之密封條，前述之軟f密封侧好可填補該 上、下層鏈條之所形成_距，當經由拉頭合齒而扣合時^ 左、右兩侧爽在鏈齒排間距中之密封條會由該上、下層鍵條之鍵 齒緊扣不鬆動而令密封條橫向受力緊迫在—起，而達到防氣、防 水、防尖輸鮮而破叙於帅陳錄—般尼龍 拉鏈齒具有互扣後不鬆_概，健封舰擠壓、充 塞於齒排間距内不因轉角折f而鬆開，達到全面性防水、防氣 防爆齒的魏功效；糾摘作亦可進—步包括—用於開合雜 鏈之拉頭，該拉頭之上、下護板的樞接輕合槽分別與一或一以上 之滾軸輪賴之糾嶋，令⑽上、下叙各滾軸式壓輪 限制上、下層鏈條合齒(扣合)後之中間厚度，以相對令該分別搞設 於上、下護板的滚軸賴輪之輪面分別緊貼附於齒面而達到如一 般齒輪無敵斜準虹、下__錄，如財確保上、 下層左健賴之觸卿在同—料準錢行麵，藉由此拉 ，上、下護板所設之—或—以上滾軸式可以-來減少摩捧阻 ’-來精準合缝使密封健定擠壓在一起，如此比在一 統之雙層_錄_縣鋪顧紐、更狱、更滑順。 再者，f述左、右布帶之左、右對應側端的上端面、下端面 可以塗佈而結合軟性之密封條，或在該左、右布帶織 成軟性之封條’或在該左、右布帶織造時將紗加擒編織 ord)做為上、下層合齒後填補内部空間而具防爆作 帛，另經淋膜處理而形成如密封條雛而達防水隔氣功能之作用。 , ㈣，舰左、右喊布帶财為侧邊有紗蕊之布帶再與上、 ;下層鏈條車縫岐，經由染色過程再做淋膜烘乾處理，而達到防 -水、防氣、.防爆齒之功能。 、，又’本創作可更進—步藉由拉頭之基心、隔板中間位置的舌型 _平衡導片使_合禽時水平㈣各就备位，順利而準確的合齒。 . 茲配合圖式詳加說明如后。 • 【實施方式】 請先參相七、圖八_，本_—種魏式科形鍵齒縫 合之拉鏈㈡，係包括有位於中間之左、右布帶⑴以及車縫於左、 右布帶(1)之上方與下方的上層鏈條(2)與下層鏈條(2)，其中該上、 下層鏈條(2)各具有以左旋向和右旋向為職形麟賴為一組的 兩排鏈齒⑽另參考圖五、圖六），且其中各排鏈齒⑼之各鏈齒 (21)(參考圖四、圖五)具有齒頭即)以及與齒頭即)之前端相連的 _鏈齒身(212) ’且令兩排鏈齒(21)之鏈齒(21)的齒頭(211)與鏈齒身 (212)相互間隔扣合(參考圖六）； 其特徵在於： 該上層鏈條(2)與下層鏈條(2)之各齒頭(211)前端的鏈齒身(212) 係刀別被壓制形成下陷面(2丨2〇)而形成向鏈齒身(21S)兩側擴大之 凸緣部(2121)以及連接齒頭(211)之窄頸部卯2)，進而令各鏈齒(21) 瓜成辦枓形輪廓’在合齒而扣合狀態時，其巾—排鏈齒(21)的齒頭 (211)就卡扣在兩相鄰的窄頸部(2122)之間，且在各扣合的齒頭(2ΐι) M423469 前端部形成抵靠，易言之，當橫向外拉時具互扣之作用，而往内 擠時左、右it齒頭(211)因擴大之錄部(2121)呈互抵之功能(請另 考圖六之虛線箭頭所示），可確保與左、右布帶⑴車縫時橫向不管 受拉或受_不馳’喊柄频徵_成之紐有位於中間 之左、右布帶⑴以及位於左、右布帶⑴上方與下方的上層鍵條(2) 與下層鏈條(2)所構成之雙層式啊形鍵齒縫合之拉鍵(參考圖 八）’則呈現如同-般金屬或塑鋼拉鏈均是雙層齒(雙面齒），本創 作之左、右邊布帶(1)在中間而緊互扣的上、下層鏈條(2)在上、下 層時，可形成布帶⑴在與其他布料、皮料等面料不論箱包或帳蓬 等相關產品加工後，在使用時，無論在由上往下壓之外來力或由 :往上壓之凸出力#時或箱包、帳篷使用在處拉鏈鍵齒距與 父合角度最容易變形而降低相互緊扣的強度時本創作結構可以 2補上述敝，物錄上方之上層聰(取鏈網受尖端碰 j時’該上翁下f，但位於下層之下層鏈條(2)之左、右兩側的 ^形鏈蝴贿_合_住，使上祕條(2)之鏈齒⑼沒 有下彎的機會，不受内、外受力及轉角處能維持變型而功能不變， 再者％另岭參相九〜計所*係本_之第二實施 覆^要在纖、⑽卿在押出機披 =形成分別結合於該左、右布帶⑴之左、右對應侧端的上 、下端面與内烟之軟性密封條(33)之後，再與上、下 M423469 廓侧 第二實施例未示)合齒而扣合時，左、右H) ’虽經由拉頭(本 性之密封條(33)會嫩、下層 中軟 軟性之密聰(33)橫岭力緊迫在# _剛扣祕動而令 銳物縣而顧之物魏、防水、防尖 具有互扣後不鬆_雜 匕龍拉鏈齒 m 了確保C型之軟質密封條(33)被擠 、充塞於齒排間距内不轉角_而鬆開，進而達到全 水、防氣、防爆齒的新功效。 方 改為=Γ結合於該左、右布帶⑴之C型軟嶋_)亦可 =事^-般押出機用軟性塑料粒押抽出呈〔形體之密封條 (嫌3 X另參考圖十一）’然後捲繞成一捲一捲，最後再與左、右邊布 的)先車縫緊⑽參考辭二），然後再與上、下層鏈條⑺車縫 4;或者亦可由軟性塑料粒押抽成型如_長條軟性塑料條 (33〇)(另參考圓十二)或方型長條軟性塑料條(mo，，，)(另參考圖十 四）’再以如同塑鋼拉鏈或金屬拉鏈之織帶方式直接置於侧邊而編 織連結並構成結合於左、右布帶⑴之内側端的密封條⑶”牌，，）， π另參考圖十五與計六所示，錢經過賴處錢再與上、下 $鏈條(2)車缝在-起，除了在左、右邊布帶⑴織造時織入軟性之 密封條(33”)(33’”），或者也可在該左、右布帶⑴織造時將紗加擒編 織成軟性之蕊線(Cord)(圖未示)做為上、下廣合齒後填補内部空間 八爆作用’另經淋膜處理*形成如密封條特性*達防水隔氣 功月f之作用；另外，前述左、右附蕊布帶⑴係可為侧邊有紗蕊之 布帶(1)再與上、下層鏈條(2)車麵定，經由染色過程再做淋膜烘v 乾處理’而_防水、贱，爆狀魏。 ·· 又’前述之密封條(33)(33，)(33，’)(33，，’)係為軟性塑料或軟性橡 膠’再者，前述左、右转⑴村赠佩糖财式*在左、· 右對應側端之上端面、下端面與内侧端結合密封條(33)(33，)之後再. 與上、下層鏈條(2)車縫固定，經由染色後做淋舰乾處理。 ^ 以上所述之方法、方式均可達成上、下層鏈條(2)失左、右邊 布▼⑴而車縫所完成之結構，均可達萌水、防氣、防爆及尖刺 功能之創新。 另外’雙層式蝌蚪形鏈齒縫合之拉鏈結構雖達到防水、防氣、 防爆，但拉頭與鏈齒配合上仍有滑動度較緊、較難拉的美中不足， 因此本創作進一步包括一改良的拉頭，針對鏈齒合齒(扣合)後的齒 頭與頭4結合之部位，請配合參考圖十七所示係本創作之第三實 _ 施例，本創作進一步包括一用於開合前述雙層式蝌蚪形鏈齒縫合 之拉鏈的拉頭(4)，該拉頭(4)之本體具有基心隔板(43)(參考圖二十 〜圖二十二)以及連接於該基心隔板(43)之上方與下方之上護板(41) 與下護板(42)，該上護板01)之上方並具有鼻碩(413)，其中該拉碩 (4)提供滚軸式壓輪(40)可如同汽車輪胎壓著馬路一樣，在該拉頭(4) 的本體之上護板(41)與下護板(42)分別設有貫穿槽(411)(421)以及 與各貫穿槽(411)(421)相連通之樞接耦合槽(412)(422)，進而可藉由 M423469 該上、下護板(41)(42)之拖接耦合槽(412)(422)分別與一或一以上之 , 滾軸式壓輪(4〇)兩侧之軸部(401)樞接’令位於上、下層之各滾軸式 . 壓輪(4〇)限制上、下層鏈條(2)合齒(扣合)後之中間厚度，以相對令 • 該分難、下魏(41)(42)·賦壓輪(4G)之細(402)分 別緊貼附於齒㈣制如—織輪與錄之水平準位上、下相互 對應的位置’如此可確保上、下層左侧與右彳狀_鋪部在同一 水平準位進行合齒，藉由此拉师)上、下驗(41)(42)所設之一或 • 以上滾軸式屋輪(40)可以一來減少雜阻力，二來精準合齒，如 此比在一般傳統之雙層拉鏈在滑動度及合齒精確度更佳、更穩 定、更滑順。 别地租頌之本體的上護板(41)上方所設之鼻頭(413) 之前側下方(_)(參考圖二十二)係止擋住上護板(句之貫穿槽 _的前_11)(參相十九)以防止樞設於上護板⑼之滾轴式 壓輪(4〇)脫離’而前述拉頭(4)之本體的下護板⑷的貫穿槽㈣之 前端係為封閉部卿X參考圖二十)或止卿，以防止樞設於該下 護板(42)之滾軸式壓輪⑽脫離，另參考圖二十二所示之中心線， 紅、下護板(41)(42)所分別樞設之各壓輪(4〇)係對稱同轴心。 另者，請魏合參相二十三所_本_之細實施例， 二與前述第三實施例之些微差異乃在於該左、右布帶⑴係進一步 ^軟性轉在押㈣賴加Μ形賴合_左、右布帶⑴的 =右對應側端之上端面、下端面與内侧端 與上、下層鏈條(2)車縫崎，_雜顺述第三實_所2 11 M423469 於開合該拉鏈之拉頭(4)，在該拉頭(4)的本體之上護板(41)與下護 板(42)的樞接耦合槽(412)(422)分別與一或一以上之滾軸式壓輪(4〇) 兩侧之軸部(401)樞接，令位於上、下層之各滾軸式壓輪(4〇)限制 上、下層鍵條(2)合齒(扣合)後之中間厚度，以相對令該分別樞設於 上、下護板(41)(42)的滾軸式壓輪(40)之輪面(402)分別緊貼附於齒 面而達到如一般齒輪與齒輪之水平準位上'下相互對應的位置， 如此可確保上、下層左側與右側之鏈齒頭部在同一水平準位進行 合齒，藉由此拉頭(4)上、下護板(41)(42)所設之一或一以上滾軸式 壓輪(4〇)可以-來減少摩擦阻力，二來精準合齒，如此比在一般傳 統之雙層拉鏈在滑動纽合麟確度更佳、錢^、更滑順。 請配合參考圖二十四〜圖二十九所示係本創作之第五實施 例，其與前述第三實施例之主要内容相同，但本實施例更進一步 的設計在於該拉頭(4)之本體的基心隔板(43)(另㈣圖二十六〜圖 二十九)的中間位置向前突設具有舌型之平衡導片（431)，使鏈齒合 齒時水平方向各就各位，順獅合齒，雜頭⑷囉具有連接於 該基傾板(43)之上方與下方之上護板⑼與下護板㈣，該上護 板⑹之上方並具有鼻頭(413)，其中該拉頭(4)樞設滾軸式壓輪 (4〇) ’在該拉頭(4)的本體之上敵⑼與下護板⑽分別設有貫穿 槽(4聊1)以及與各貫賴如胸相連通之樞_合槽㈣ =2) ’進而可藉由該上、下護娜)(42)之樞接輕合槽㈣㈣ 分別與一或1上之滾軸式壓輪(4〇)兩側之軸部(401)樞接，令位於 上、下層之各滾軸式屋輪㈣限制上、下層鏈條(2)合齒(扣合)後之 12 M423469 中間厚度，以相對令該分別極設於上、下護板(卿2)的滾轴式壓 輪(40)之輪面_分別緊貼附於齒面而達到如一般齒輪與齒輪之 水平準位上、下相互對應的位置，如此可確保上、下層左側與右 侧之鏈齒頭部在同^水平準位進行合齒，藉由此拉頭(4)上、谓 板(41)(42)所設之-或-以上滾軸式麗輪(4〇)可以一來減少雜阻 力’二來精準合齒，如此比在-般_之雙層轉在滑動纽合 齒精確度更佳、更敎、更_ :再者，前錄蝴之本體的: 護板(41)上方所設之鼻頭(413)之前侧下方(4131)(參考圖二十七、圖 二十八)係止擋住上護板(41)之貫穿槽(411)的前端(4111)(參考圖二 十六)以防止樞設於上護板(41)之滾軸式壓輪(4〇)脫離，而前述拉頭 (4)之本體的T護板(4)的貫穿槽(421)之前端係為封閉部(本實施例 未不)或止卿，霜止概於該下護板(a)之雜賴輪 離。 綜上所述，本創作可歸納具有下列增進功效： L布帶(1)在中間⑽緊互扣的上、T層鏈條(2)在上' 下層時，可形 成布可(1)在與其他布料、皮料等面料不論箱包或帳篷等相關產 的加工後，在儀^用時，無論在由上往下壓之外來力或由下彺上 壓之凸出力量時或箱包、帳篷使用在轉角處拉鏈鏈齒距與咬合 角度最容易變形而降低相互緊扣的強度時，本創作結構可以彌 補上述缺失，因為當位於上方之上層鏈條(2)之鏈齒(21)受尖端碰 刺時，該上層會下彎，但位於下層之下層鏈條(2)之左、右兩侧 的明·畔形鏈齒(21)剛好緊密扣合而撐住，使上層鏈條(2)之鏈齒 13 M423469 ⑼沒有下彎的機會’不細、外受力及轉角處能維持變型而功 能不變，且·拉聰岭拉力歧拉鏈在轉域仰摔撞或 碰尖端物而裂開。 2.該密封條(33)_可填概、下層鏈條(2)之齒排所形成的間距 内(參考叫當經由拉頭合齒而扣合時，左、右兩側夹在鍵齒 排間距t之料條(晴由該上、下賴細之 鬆動而令密封綱橫向受力緊迫在一起，而達到防氣、防水、 防尖銳物縣*破狀伽，而由於·較—般尼龍 拉鏈齒具有互扣後不鬆動的特性，因此可確保密封條⑼被擠 壓、充塞於齒侧距内稍⑽折f而鬆開，進而達到全面性 防水、防氣、防爆齒的增進功效。 3.可進-步配合穿設—改㈣拉頭(4)，該拉頭(4)的上、下護板 (41)(42)之樞接搞合槽(412)(422)分別與—或一以上之滾轴式壓 輪(40)兩侧之軸部(401)枢接，令位於上、下層之各滾轴式壓輪㈣ 限制上、下層鏈條⑺合齒(扣合)後之中間厚度，以相對令該分別 樞設於上、T護板(41)(42)的滾軸式壓輪(4〇)之輪面(4〇2)分別緊 貼附於齒面而達到如一般齒輪與齒輪之水平準位上、下相互對 應的位置，如此可確保上、下層左侧與右側之鍵齒頭部在同一 水平準位進行合齒’藉由此拉剛4)上、下護板(句㈣所設之一 或-以上滚軸式壓輪_可以-來減少摩擦阻力，二來精準合 齒，如此比在一般傳統之雙層拉鏈在滑動度及合齒精確度更 佳、更穩定、更滑順。 M423469 4.1藉由拉(4)之基心隔板(43)中間位置的舌型平衡導片(卿吏鍵 齡齒時水平方向各就各值，順利而準確的合齒。 ：±是以，本_作乃確具其實用增進功效’乃謹以新型專利申 .奴，輯躺貴審查委許畴查麵准專利，至感德便。 & ’ WJi所精僅為本創作讀佳實補Μ，當不能以之 限林創作實施之翻，舉凡依本創作申請專利翻所作之均等 變化與修飾皆應仍屬本創作涵蓋之專利範圍内。 • 【圖式簡單說明】 圖一係習用尼龍拉鏈鏈齒之前視圖。 Κ系左、右方向相對旋轉的兩排習用尼龍拉鏈鏈齒之俯視圖。 圖-係f用尼餘鏈職扣合狀態讀視平面圖。 圖四係本創作實施例其中辦枓形拉鏈鏈齒之前視圖。 圖五係本創作實施例其中左、右方向相對旋轉的螂鮮形拉鏈鍵齒 之俯視圖。 _圖六係本創作實施例其中辦枓形拉鏈鏈齒扣合狀態之俯視平面放 - 大示意圖。 . 圖七係本創作實施例之單邊纟且合的斷面示意圖p 圖八係本創作實施例之左、右雙邊組合的斷面示意圖。 圖九係本創作第二實施例之單邊組合的斷面示意圖。 圖十係本創作第二實施例之左、右雙邊組合的斷面示意圖。 圖十-係本麟第二實施例射㈣條被事先押出成形為〔形體 之平面示意圆。 15 M423469 圖十二係本創作第二實補其密雜被事先押㈣形紅形體且 與布帶車縫固定後之平面示意圖。 圖十三係本創作第二實施顺中密封條被事先押出成形為圓條狀 之平面圖。 圖十四係本創作第二實細其巾密封條被事先押出成形為長形條 狀之示意圖。 圖十五係本創作第二實施例其中圓條狀密封條以織帶方式直接置 於侧邊而編織後之示意圖。 圖十，、係本創作第二實施例其巾長形方條狀密封條以織帶方式直 接置於侧邊而編織後之示意圖。 圖十七係本創作第三實施例之部份組合斷面放大示意圖。 圖十八係本創作第三實施例其中拉頭之前視放大圖。 圖十九係本創作第三實施例其中拉頭之上視放大圖。 圖二十係本創作第三實施例其中拉頭之背視放大圖。 圖二十-係本創作第三實施例其中拉頭之鼻部尚未定位前的侧視 示意圖。 圖二十二係本創作第三實賴其中拉頭之鼻部定位後的侧視動作 示意圖。 圖一十二係本創作第四實施例之部份組合斷面放大示意圖。 圖二十四係本創作第五實施例之部份組合斷面放大示意圖（鼻頭 尚未定位）。 圖二十五係本創作第五實施例其中拉頭之立體放大圖（鼻頭尚未 16 M423469 定位）° 視放大示意圖（鼻頭 圖二十六係本創作第五實施例其令拉頭之上 尚未定位）。 前的侧視 圖二十七係本創作第五實施例其中拉頭之鼻部尚未定位 示意圖。 圖:Γ:购第五實施例其中拉頭之鼻部定御 圖 =:創作第五實施例其中拉頭之基，位的斷面再 【主要元件符號說明】 (1)布帶 (21)鏈齒 (212)鏈齒身 (2121)凸緣部 (33)(33’）(33”)(33，”)密封條 (4)拉頭 (401)軸部 (41) 上護板 (4111)前端 (413)鼻頭 (42) 下護板 (43) 基心隔板 (2)上、下層鏈條 (211)齒頭 (2120)下陷面 (2122)窄頸部 (330”)（330’”)軟性塑料條 (40)壓輪 (402)輪面 (411) (421)貫穿槽 (412) (422)樞接耦合错 (4131)前侧下方 (4211)封閉部 (431)平衡導片 17M423469 V. New description: [New technical field] This creation refers to a double-layered sprocket stitched zipper (2), which refers to a kind of cloth belt with the middle and the upper layer is a 蝌蚪-shaped contour sprocket. The formed chain may further include a sealing strip, or may further include a slider for opening and closing the zipper, and the slider is pivoted with a roller of the roller type pressure roller. [Prior Art] The month 'Fig. ~ Fig. 2 shows the conventional nylon pull key structure, which is mainly wound and formed into a round strip-shaped single strand and is formed into a flat strip of hollow _ empty ^ 'The spiral strip-shaped squaring pitch, the left-handed and right-handed spiral square-shaped coils are - (four) two rows of sprocket (5), and the gongs have two rows of _ flattened bends a tooth head (51) and a chain body (52) connected to the tooth head (9), and the nylon zipper element of the above-mentioned: the zipper of the tape is connected with a nylon zipper, and has a tensile effect when pulled in use. However, when the horizontal direction is pushed in the middle, because the key tooth head is held up, _ in _, the method is divided into the machine, and some thieves only need to press the tip end of the stylus to the gap of the sprocket, the left and right sides The key teeth are: it shape, reading greatly reduces the safety of the traditional zipper used on the luggage. p is the solution of the creator's hat patent, the helper coffee 827 pain number patent case and other cloth:: etc. = creation is _ in the practice of double The zipper of the chain tooth is in the case of • double tooth no matter: 1== after processing by the product 'in the -* _, _ used in the turn: ===: easy to deform and reduce the tight thief' _ Not through research and testing, to create a two-layer seam on tadpole type fastener of the fastener suture (II). The main purpose of this creation is to provide a double-handle-shaped key-toothed zipper (2), * the sprocket on the upper layer of the upper layer is struck by the tip _, the social layer will bend down, but under the The ___ on the left and right sides of the lower chain is tightly fastened and supported, and the chain teeth of the upper chain have no chance to bend down, and are not affected by the internal and external forces and the transformation of the secret energy. And the pull button is pulled toward the tension and the zipper is not cracked at the corner by the collision or hitting the tip. The second step of the creation is to provide a double-layered sprocket stitched zipper (2). The left and right cloths are fed with a soft sealing strip, which can fill the upper and lower chains. The spacing of the teeth is solved. When the teeth are fastened by the teeth of the slider, the soft seals of the left and right strands will be tightly fastened by the fasteners of the upper and lower chains. The lateral force is tight together, r achieves the advantages of gas-proof, waterproof, and anti-sharp impact and rupture, and since the office bowl teeth are more than the general Ni-Cha chain, it can ensure that the strip is squeezed and stuffed. The shaft shaft is not _ riding and bending, and can be combined with the upper sealing strip and the lower sealing strip to achieve comprehensive waterproof, anti-gas and explosion-proof effects. The purpose of this creation is to provide a zipper for the sprocket stitching of the Langgang Township (2). The step further includes a slider for opening and closing the zipper, and the upper and lower guard plates of the slider are respectively pivoted. For the multi-type pressure roller above H, the roller-type pressure rollers located in the upper and lower layers are limited to the middle thickness of the upper and lower chain teeth (fastening), and the M423469 is oppositely disposed on the upper and lower guard plates. The wheel surface of the roller-type pressure roller is closely attached to the tooth surface to reach a position corresponding to the horizontal position of the general gear and the gear, thereby ensuring the chain head of the left and right sides of the upper and lower layers. At the same level, the joints are used. The roller-type pressure rollers set by the New Zealand and the Lower Wei can reduce the frictional resistance. Secondly, the teeth are accurately combined and the seals are stably squeezed together. The double-layer zipper of the green pass is better, more stable and smoother in sliding and gearing. The purpose of this creation is to provide a double-layer Langke-shaped chain-toothed zipper (1) 'Wei Kejinjin-step sigma σ as mentioned _ to the middle of the lion fine partition with a tongue-shaped balance guide, so that When the chain teeth are combined, the horizontal direction is the same, and the teeth are smoothly and accurately combined. [New content] A double-layered type-shaped chain zipper (2), which means that the cloth belt is in the middle and the upper and lower layers are interlocked with the chain of the office. Other fabrics such as leather and leather materials are still related to the product of the ship's scales. In the case of the squad, the embossing force of the zipper is easy to deform and the zipper is easy to deform. When the strength of each other is tight: Loss, because when it is located above ^ is the enemy _,, = is configured to make up for the above-mentioned missing f, but when the ~ layer::: sprocket is hit by the tip, the upper layer will be densely buckled仏 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ And the zipper is not cracked at the corner by the collision or hitting the tip; the left and right cloths of the creation can be in the soft seal of the step, and the soft f seal side can fill the upper and lower chains. The formed _ distance, when the button is engaged by the slider, the left and right sides of the sealing strip in the spacing of the sprocket rows will The key teeth of the upper and lower key strips are not loosened, so that the lateral force of the sealing strip is pressed tightly, and the gas-proof, waterproof, anti-tip fresh-keeping is achieved, and the chin fastener is broken. After the buckle is not loose _ _, the Jianfeng ship squeezed, stuffed in the pitch of the tooth row is not loosened due to the corner folding f, to achieve the comprehensive waterproof, anti-gas explosion-proof teeth Wei effect; - the slider for opening and closing the miscellaneous chain, the pivoting and splicing groove of the upper and lower guard plates of the slider are respectively entangled with one or more roller wheels, so that (10) the upper and lower rollers are respectively The pressure roller limits the intermediate thickness of the upper and lower chain teeth after the teeth are engaged (closed), so that the wheel surfaces of the roller pulleys respectively disposed on the upper and lower guard plates are closely attached to the tooth surface, respectively. Generally, the gears are invincible and oblique, and the next __ records, such as the financial guarantees that the upper and lower layers of the left-handed Laizhi’s touches are in the same material, and by this, the upper and lower guards are set up – or above. Roller type can be - to reduce the friction of the '- to accurately sew the seal to squeeze together, so more than a unified double-layer _ record _ county shop, jail More smooth. Furthermore, the upper end surface and the lower end surface of the left and right corresponding side ends of the left and right cloth strips may be coated to be combined with a soft sealing strip, or the left and right cloth strips may be woven into a soft seal' or on the left side. When the right cloth belt is woven, the yarn is twisted or woven ord) as the upper and lower layers to fill the internal space and is explosion-proof, and the film is processed to form a sealing strip to achieve the function of waterproof and gas barrier. (4), the left and right sides of the ship shouted the cloth with the money and the belt with the yarn core on the side and then the upper; the lower chain was sewn, and then dried by the dyeing process to achieve anti-water, anti-gas, The function of explosion-proof teeth. And, 'this creation can be further improved' by the base of the slider, the tongue type in the middle of the partition _ balance guide to make the level of the poultry (4) ready, smooth and accurate teeth. Please refer to the drawings for details. • [Implementation] Please refer to phase VII, figure _, _ _ _ type of Wei-shaped key-toothed zipper (2), including the left and right cloth belt (1) in the middle and the sewing on the left and right cloth belt ( 1) above and below the upper chain (2) and the lower chain (2), wherein the upper and lower chains (2) each have two rows of sprocket in a group of left-handed and right-handed directions. (10) Referring additionally to FIG. 5 and FIG. 6), and wherein each of the sprocket teeth (21) of each row of sprocket teeth (9) (refer to FIG. 4 and FIG. 5) has a tooth head and a _ sprocket tooth connected to the front end of the tooth head) The body (212)' and the teeth (211) of the sprocket (21) of the two rows of sprocket (21) are spaced apart from the chain body (212) (refer to FIG. 6); characterized in that: the upper chain (2) The sprocket body (212) at the front end of each tooth head (211) of the lower chain (2) is pressed to form a sag surface (2丨2〇) to form an enlarged side of the sprocket body (21S). The flange portion (2121) and the narrow neck portion )2) of the connecting tooth head (211), so that the sprocket teeth (21) are formed into a 枓-shaped profile. The tooth head (211) of the sprocket (21) is snapped on two adjacent narrow necks Between (2122) and at the front end of each of the engaged tooth heads (2ΐι) M423469, it is easy to say that when it is pulled laterally, it has the function of interlocking, and when it is pushed in, it is the left and right teeth. (211) Because the enlarged recording department (2121) has the function of mutual resistance (please refer to the dotted arrow in Figure 6), it can ensure that the left and right cloth belts (1) are horizontally regardless of the tension or the _ _ _ 'Shouting frequency _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The key of the key tooth stitching (refer to Figure 8)' is like a metal or plastic steel zipper is double-layered teeth (double-sided teeth), the left and right cloth belts of this creation (1) in the middle and tightly interlocked The upper and lower chain (2) can form the tape (1) in the upper and lower layers, and after processing with other fabrics, leather materials and other related products, such as bags or tents, when used, regardless of the top and bottom External force or by: when pressing upward force ## or when the luggage and tent are used everywhere, the zipper key pitch and the parental angle are the most easily deformed to reduce the mutual tightness. At the time of the creation structure, the above structure can be supplemented by 2, and the upper layer of the upper layer of the object is recorded (when the chain is touched by the tip of the chain), the upper and lower sides of the lower layer (2) are located. Shape chain bribery _ _ live, so that the sprocket (9) of the top secret (2) does not have the opportunity to bend down, no internal and external forces and corners can maintain the deformation and function unchanged, and then another ginseng The second implementation of the ninth to the syllabus is to be in the upper and lower end faces of the left and right corresponding side ends of the left and right cloth belts (1) respectively. After the soft seal of the smoke (33), and then the upper and lower M423469 profiles are not shown in the second embodiment, when the teeth are engaged, the left and right H) 'via the slider (the seal of the nature (33) Will be tender, soft and soft in the lower layer (33) Hengling force in the # _ just buckle the secret and make the sharp object and take care of the Wei, waterproof, anti-tip with interlocking and not loose _ 匕 匕 拉 zipper The tooth m ensures that the soft sealant (33) of the C-type is squeezed and stuffed in the pitch of the tooth row without loosening, thereby releasing the new effect of full water, gas-proof and explosion-proof teeth. The square is changed to = Γ combined with the left and right cloth belts (1) of the type C soft 嶋 _) can also be = ^ ^ general extruding machine with soft plastic granules drawn out [shaped seals (supposed 3 X another reference figure ten a) 'then wound into a roll, and finally with the left and right cloths" first sewing (10) reference 2), and then with the upper and lower chain (7) sewing 4; or can also be pumped from soft plastic pellets Forming such as _ strip soft plastic strip (33 〇) (also refer to round 12) or square strip flexible plastic strip (mo,,,) (see Figure 14) [again like plastic steel zipper or metal zipper The webbing method is directly placed on the side and woven and joined to form a sealing strip (3)", which is bonded to the inner end of the left and right cloth strips (1), and π is additionally shown in Fig. 15 and Fig. 6, and the money passes through the money. Sewing the upper and lower $ chain (2), except for the soft seal strip (33") (33'") when weaving the left and right strips (1), or in the left and right cloths. When weaving (1) weaving, weaving the yarn into a soft core (not shown) as the upper and lower teeth, filling the internal space and exploding the effect. Forming such as the characteristics of the sealing strip* to achieve the function of the waterproof gas-blocking function f; in addition, the aforementioned left and right reinforcing strips (1) can be a belt with a side of the yarn (1) and the upper and lower chain (2) Ding, through the dyeing process and then do the lamination drying v dry treatment 'and _ waterproof, 贱, 状 魏 Wei. ·· 'The aforementioned seal (33) (33,) (33, ') (33,, ') It is made of soft plastic or soft rubber. In addition, the left and right turns (1) village gifted sugar * in the left, right side of the corresponding side end, the lower end and the inner end combined with the sealing strip (33) (33, After that, it is fixed with the upper and lower chain (2), and is dried after being dyed. ^The above methods and methods can achieve the upper and lower chain (2) left and right cloth ▼(1) The structure completed by the sewing can achieve the innovation of the water, gas, explosion and spike functions. In addition, the 'double-layered sprocket stitching zipper structure is waterproof, gas-proof and explosion-proof, but the slider In combination with the chain teeth, there is still a lack of sliding, which is difficult to pull. Therefore, the present invention further includes an improved slider for the gear teeth. The part of the tooth head and the head 4 after the (fastening) is combined with the third embodiment of the present invention as shown in Fig. 17. The present invention further includes a double-layered chain for opening and closing a slider (4) of a zipper with a tooth stitched, the body of the slider (4) having a base spacer (43) (refer to FIG. 20 to FIG. 22) and connected to the base spacer (43) Above and below the upper guard plate (41) and the lower guard plate (42), above the upper guard plate 01) and having a nose (413), wherein the pull-up (4) provides a roller-type pressure roller (40) As the car tire is pressed against the road, the upper cover (41) and the lower guard (42) of the slider (4) are respectively provided with through grooves (411) (421) and through grooves (411). (421) a pivotal coupling slot (412) (422) that is in communication with each other, and further, by M423469, the upper and lower shields (41) (42) of the drag coupling slots (412) (422) are respectively associated with one or More than one, the shaft portion (401) on both sides of the roller type pressure roller (4〇) is pivotally connected to each of the upper and lower layers. The pressure roller (4〇) limits the upper and lower chain (2) The middle thickness after the tooth (fastening), to the relative difficulty of the point, the lower Wei (41) (42) · pressure wheel (4G) The thin (402) is closely attached to the position of the tooth (four), such as the weaving wheel and the horizontal position corresponding to the record, so that the left and right sides of the upper and lower layers are at the same level. To perform the combined toothing, one of the upper and lower inspections (41) (42) or the above-mentioned roller-type house wheel (40) can reduce the miscellaneous resistance, and the second is to accurately combine the teeth. In the conventional double-layer zipper, the sliding degree and the combined tooth are more accurate, more stable and smoother. The nose (413) above the upper guard plate (41) of the body of the renter is not blocked (_) (refer to Figure 22) to stop the upper guard (the first _11 of the through slot _ of the sentence) (Ref. 19) to prevent the roller-type pressure roller (4〇) pivoted from the upper guard plate (9) from coming off, and the front end of the through-slot (4) of the lower guard plate (4) of the body of the aforementioned slider (4) is closed. Ministry of Education X refers to Figure 20) or Zhiqing to prevent the roller-type pressure roller (10) pivoted to the lower guard plate (42) from being disengaged. Referring additionally to the center line shown in Figure 22, the red and lower guard plates (41) Each of the pressure rollers (4〇) pivoted by (42) is a symmetrical coaxial core. In addition, please refer to the twenty-three _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Laihe _ left and right cloth belt (1) = right corresponding side end upper end surface, lower end surface and inner end end and upper and lower chain (2) sewing seam, _ miscellaneous description third real _ 2 11 M423469 The slider (4) of the zipper is respectively provided with one or more pivoting coupling grooves (412) (422) of the upper upper guard plate (41) and the lower guard plate (42) of the slider (4) Roller type pressure roller (4〇) The shaft parts (401) on both sides are pivoted, so that the roller presses (4〇) on the upper and lower layers limit the upper and lower key strips (2). The intermediate thickness after the combination is such that the wheel surface (402) of the roller type pressure roller (40) respectively pivoted on the upper and lower guard plates (41) (42) is closely attached to the tooth surface. For example, the position of the gear and the gear is at the same level as the lower level of the gear, so as to ensure that the left and right side of the upper and lower teeth are at the same level to engage the teeth, thereby pulling the head (4). One or more roller type of the lower guard plate (41) (42) The pressure roller (4〇) can be used to reduce the frictional resistance, and the second is to accurately combine the teeth. This is better than the conventional double-layer zipper in the sliding, and the money is smoother. Please refer to FIG. 24 to FIG. 29 for the fifth embodiment of the present invention, which is the same as the main content of the foregoing third embodiment, but the further embodiment of the present embodiment is that the slider (4) The center position of the base plate (43) (the other (four) figure 26 to the figure 29) of the main body protrudes forwardly with a tongue-shaped balance guide piece (431), so that the gear teeth are horizontally arranged at the same time. , the lion-toothed tooth, the miscellaneous head (4) has a top and a lower upper guard (9) and a lower guard (4) attached to the base tilting plate (43), above the upper guard (6) and having a nose (413), wherein The slider (4) pivots a roller-type pressure roller (4〇). On the body of the slider (4), an enemy (9) and a lower guard plate (10) are respectively provided with a through slot (4 chat 1) and Lai 胸 胸 胸 胸 胸 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 〇) The shaft parts (401) on both sides are pivoted so that the roller-type house wheels (4) located in the upper and lower layers limit the intermediate thickness of the 12 M423469 after the upper and lower chain (2) are engaged (fastened). The poles are set at the top, The wheel surface of the roller (40) of the guard plate (Qing 2) is attached to the tooth surface to reach the position corresponding to the horizontal position of the general gear and the gear, so as to ensure the upper and lower positions. The left and right sprocket heads of the lower layer are combined at the same level, so that the slider (4), the pre-plate (41) (42) is set to - or - the above roller type reels (4〇) can reduce the miscellaneous resistance to the second. Accurately combine the teeth. This is better than the double-turning in the sliding lap. The precision of the teeth is better, more ambiguous, and more _: The front side of the nose (413) above the guard plate (41) (4131) (refer to Fig. 27, Fig. 28) is used to block the through slot (411) of the upper guard plate (41). The front end (4111) (refer to FIG. 26) prevents the roller type pressure roller (4〇) pivoted from the upper guard plate (41) from being disengaged, and the T guard plate (4) of the body of the aforementioned slider (4) The front end of the through groove (421) is a closed portion (not in this embodiment) or a stop, and the frost stops on the lower guard plate (a). In summary, this creation can be summarized as follows: L tape (1) in the middle (10) tightly interlocked, T layer chain (2) in the upper 'lower layer, can form cloth can (1) in Other fabrics such as fabrics and leathers, whether processed by related products such as bags or tents, are used when the instrument is used, whether it is pressed from the top or the bottom, or when it is pressed by the chin, or used in bags or tents. When the zipper chain pitch and the occlusal angle are the most easily deformed at the corner to reduce the strength of the mutual fastening, the present structure can make up for the above-mentioned missing, because the sprocket (21) located above the upper chain (2) is tip-punched. When the upper layer is bent down, but the left and right sides of the lower layer chain (2) are clearly closed and supported, so that the upper chain (2) is sprocket 13 M423469 (9) There is no chance of going down. 'There is no fineness, external force and corners can maintain the deformation and the function remains unchanged, and the Lacong Ridge tension zipper splits in the turn and hits the tip and cracks. 2. The sealing strip (33)_ can be filled in the distance formed by the tooth row of the lower chain (2) (refer to the case where the left and right sides are clamped in the key row when the button is engaged by the slider) The strip of the spacing t (clear by the looseness of the upper and lower linings, so that the seals are pressed laterally together to achieve the anti-gas, waterproof, anti-sharp county * broken gamma, and because of the relatively nylon The zipper teeth have the characteristics of not loosening after interlocking, so that the sealing strip (9) can be squeezed and stuffed in the side of the tooth to be slightly folded (10) and loosened, thereby achieving the comprehensive waterproofing, anti-gas, and explosion-proof teeth. 3. The step-by-step fitting-changing (four) slider (4), the pivoting of the upper and lower guard plates (41) (42) of the slider (4) is engaged with the slot (412) (422) respectively - or more than one or more of the shaft portions (401) of the roller-type pressure rollers (40) are pivotally connected, so that the roller-type pressure rollers (4) located in the upper and lower layers limit the upper and lower chain (7) after the teeth are engaged (fastened) The intermediate thickness is relatively close to the tooth surface of the roller press (4〇2) of the roller-type pressure roller (4〇) respectively pivotally disposed on the upper and the T-guards (41) (42). Such as the general level of gears and gears up and down Corresponding positions, so as to ensure that the left and right side of the upper and lower layers of the key teeth are at the same level to engage the teeth 'by pulling the 4) upper and lower guards (one of the sentences (4) or - The above roller type pressure roller _ can - reduce the frictional resistance, and the second is to accurately combine the teeth, which is better, more stable and smoother than the conventional two-layer zipper in the sliding degree and the combined tooth accuracy. M423469 4.1 Borrowing The tongue-shaped balance guide piece at the middle position of the base plate (43) of the pull (4) (the horizontal direction of each of the key teeth of the key is the smooth and accurate joint tooth. : ± Yes, this _ It is indeed a practical and effective effect. It is a new type of patent application. It is a review of the company’s patents, and it’s a matter of feeling. “WJi is only a good complement to this creation. When it is not possible to limit the implementation of the forest, the equal changes and modifications made by the applicant for the patent application shall remain within the scope of the patent covered by this creation. • [Simple diagram] Figure 1 is a custom nylon zipper chain Front view of the teeth. Two rows of conventional nylon zipper fasteners that rotate relative to each other in the left and right directions. Fig. 4 is a front view of the zipper sprocket in the present embodiment. Fig. 5 is a front view of the present embodiment in which the left and right directions are relatively rotated. The top view of the zipper key of the 螂 。 。 _ 系 系 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 俯视 俯视 俯视 俯视 俯视 俯视 俯视 俯视 俯视 俯视 俯视Fig. 8 is a schematic cross-sectional view showing the left and right bilateral combination of the present embodiment. Fig. 9 is a schematic cross-sectional view showing the unilateral combination of the second embodiment of the present invention. Fig. 10 is a second embodiment of the present creation. Schematic diagram of the cross-section of the left and right bilateral combinations. Figure 10 - The second embodiment of the system is shot by a pre-extrusion into a [planar circle of the shape. 15 M423469 Fig. 12 is a schematic diagram of the second real complement of the creation of the densely packed (four) red body and fixed with the sewing tape. Figure 13 is a plan view of the second embodiment of the present invention in which the seal is cut into a strip shape in advance. Fig. 14 is a schematic view showing the second actual thinness of the present invention, in which the towel sealing strip is previously extruded into an elongated strip shape. Fig. 15 is a schematic view showing the second embodiment of the present invention in which the strip-shaped weather strip is woven directly on the side and woven. Fig. 10 is a schematic view showing the second embodiment of the present invention in which the long strip-shaped weather strip of the towel is directly placed on the side and woven. Figure 17 is an enlarged cross-sectional view showing a portion of the combination of the third embodiment of the present invention. Figure 18 is a third embodiment of the present invention in which the slider is enlarged in front. Figure 19 is a magnified view of the slider of the third embodiment of the present invention. Figure 20 is a rear elevational view of the slider of the third embodiment of the present creation. Figure 20 is a side elevational view of the third embodiment of the present invention in which the nose of the slider has not been positioned. Figure 22 shows the third side of this creation, which is a schematic view of the side view after the nose of the slider is positioned. Figure 12 is an enlarged schematic cross-sectional view showing a portion of the fourth embodiment of the present invention. Figure 24 is an enlarged schematic cross-sectional view of a portion of the fifth embodiment of the present creation (the nose is not yet positioned). Figure 25 is a fifth embodiment of the present invention, in which the three-dimensional enlarged view of the slider (nose head has not yet been positioned 16 M423469) ° enlarged view (nose head figure twenty-sixth embodiment of the fifth embodiment of the creation of the slider has not been positioned above ). Front Side View Figure 27 is a fifth embodiment of the present invention in which the nose of the slider has not been positioned. Figure: Γ: purchase of the fifth embodiment, the nose of the slider is fixed map =: Creation of the fifth embodiment, the base of the slider, the section of the position and then [the main component symbol description] (1) tape (21) Chain (212) sprocket body (2121) flange portion (33) (33') (33") (33, ") sealing strip (4) slider (401) shaft portion (41) upper guard plate (4111 Front end (413) nose head (42) lower guard plate (43) base center partition (2) upper and lower chain (211) tooth head (2120) sinking surface (2122) narrow neck (330") (330'" Soft plastic strip (40) pressure wheel (402) wheel surface (411) (421) through groove (412) (422) pivotal coupling error (4131) front side lower side (4211) closing portion (431) balance guide piece 17