201111575 六、發明說明： 钃 【明戶斤屬4軒々貝】 本發明涉及一種具有針桿和傳送裝置的縫紉機。 【先前技斗椅3 這種類型的縫切機在US 1，01〇,830和DE 101 23 075 C1 中已知。 【發明内容】 本發明的目的是：改進開頭所述類型的縫紉機，使得 能夠緊凑地設計與針跡區域相鄰的縫幼機殼體。 所述目的根據本發明通過具有在申請專利範圍第1項 中給出的特徵的縫紉機來實現。 根據本發明遇識到：可以使用一個拉桿/連桿來致動切 線刀或刮線刀並且支承傳送裝置-傳遞機構的支承體。拉桿 在切線期間受驅運動的事實並不干擾所述的雙重功能，這 是因為在該（切線）時段中本就不進行縫勿工作。可以省略用 於傳送裝置-傳遞機構的支承體的單獨的支承桿。在針跡區 域中，縫紉機的殻體、特別是縫紉機的自由臂在這種情況 下可以設計得非常緊凑《這實現了：將縫紉機的殼體設計 成能夠在難以接觸到的縫料區域中完成複雜的縫幼任務。 通過相對殼體固定或相對機架固定的固定體，可以防止支 承體在拉桿移位時移位，使得傳送裝置-傳遞機構在致動切 線刀傳遞機構時保持靜止。傳送裝置-傳遞機構的支承體如 此與切線刀傳遞機構的拉桿連接，使得支承體在切線刀傳 遞機構的拉桿軸向移位時相對於縫紉機殼體沿軸向保持位 201111575 j去夕日 縫料傳★線刀的致動(運動）能與通過傳送裝置進行的 動地導Ί特別是還能避免：麟送裝^致動還自 在 +切線刀的致動。支承體能以致動桿的方式存 所述致動桿通過_帶鉸接赠驗接結構與，傳送裝 置支架連接。 原則上，根據本發明的縫紉機不必配備完整的切線裝 、▲根據中睛專利範圍第2項的勒機配備有，切線裝置’ 這擴展了縫匆機的功能性。可通過切線刀傳遞機構由-驅 動裝置使拉桿移位以進行切線。移位驅動裝置玎以設計成 氣動驅動裝置、步進電機或能被驅控的起重磁體/行程磁體。 根據申請專利範圍第3項的切線刀調節元件實現了規 定切線刀相對於縫紉機針跡形成部件位置的位置，特別實 現了橫向於縫紉方向調節切線刀。 根據申請專利範圍第4項的相對殼體固定或相對機架 固定的傳送裝置調節元件實現了規定傳送裝置相對於縫紉 機的針跡形成部件的位置，特別實現了橫甸於縫紉方向調 節傳送裝置，所述傳送裝置能通過傳送裝置傳遞機構移位。 根據申請專利範圍第5項的公共支承單元實現了對擺 梭/片梭/鉤圈裝置(Greifer)和切線刀的公共調節。這一點可 以利用切線刀調節元件實現，所述切線刀調節元件同時具 有擺梭調節元件的功能。擺梭可以是豎直擺梭’即圍繞豎 直軸線轉動的擺梭。 根據申請專利範圍第6項的佈置成相對擺梭固定的反 相刀能與切線刀一起通過切線刀調節元件的移位而被規定 201111575 其位置，所述切線刀由於與擺梭具有公共支承結構而同樣 相對擺梭固定。由此在切線刀調節元件移位後，無需再使 切線刀相對於反相刀進行相對定位。 根據申請專利範圍第7項的自由臂式縫紉機中，在針跡 形成區域中緊湊的縫紉機殼體的優點可以特別好地起作 用。自由臂例如能允許鋪上管形縫料。 根據申請專利範圍第8項的雙針縫紉機特別是能用在 製造圓形或管形過濾器中。 根據申請專利範圍第9項的兩個切線裝置提高了雙針 縫紉機的功能性。 根據申請專利範圍第10項的兩個切線刀調節元件實現 了獨立地規定兩個切線刀的位置。在這種情況下，還能使 雙針縫紉機的切線刀和所屬的擺梭各自由一公共的支承單 元支承。由此，可以實現通過同時具有擺梭調節元件功能 的切線刀調節元件簡單地調節擺梭彼此的距離。 根據申請專利範圍第11項的調節元件的可接觸性簡化 了縫紉機的調校。 圖式簡單說明 下面借助附圖詳細闡述本發明的實施例。其中示出了 ： 第1圖示出單針自由臂式縫紉機的正視圖； 第2圖示出在第1圖的自由臂端部的區域中的局部放大圖； 第3圖以類似於第2圖的視圖示出單針自由臂式縫紉機 的切線刀傳遞機構和傳送裝置-傳遞機構的部件； 第4圖以從上方傾斜觀察的透視圖示出第3圖所示的部件； 201111575 第5圖示出相 第6圖示圖中的線Η的剖視圓； x煨第5圖中的線VI_VI&剖視圖 第7圖以透親圖-山 部；和 圆不出雙針自由臂式縫紉機的自由臂端 第8圖以麵似 由臂式縫幼機的/圖的視圖示出根據第7圖的雙針自 部件。 刀線刀傳遞機構和傳送裝置-傳遞機構的 【實施♦武】 較佳實施例之殚細說明 延伸具有一基板2，該基板具有由其向上 成自由臂5，使^的臂4。基板2的與臂4對置的部分設計 上的滾邊機1㈣相㈣㈣在料和箱子 向朝向所有側都是自1作和安裝工作。自由臂5橫向於臂方 臂5上，從而達咖^ ’其允許將管形縫料拉到該自由 域並且能夠在該區二傳、统的C形縫幼機不能達到的縫初區 。或中形成例如環繞的線縫。 上臂4在頭部6中钦 -在第i圖中示音性^。在上臂4中以能轉動的方式支承 一具右极始# ^不出的主軸7。該主軸7在頭部6中驅動 以能如移Γ導線桿的曲柄傳動裝置。該曲柄傳動裝置與 接方式支承在頭部6中的針桿8以傳動方式連 能使針9沿1 & ^下4部上帶有_針9。通過曲柄傳動裝置 中弓丨導^ 車由線1〇(參見第2圖）上下運動。針9在針眼 丨=張緊襄置U和挑線桿從筒管,線管輪送的_線。 的上側設計成用於支承縫料的支承板12(參見 6 201111575 第2圖）。支承板12分為針板部13和針板滑板14。針板部13 • 固定地安裝在縫紉機1的殼體15上。針板滑板14可以在拳之開 緊固彈簀16(參見第2圖）後在第2圖中向右移位，並使得（人 們）能接觸到設置在針板滑板14下方的部件。 針板部13在針9的針跡區域·中形成有一供下部、縫料傳 送裝置或送料滑塊/送布牙18穿過的缺口 17。下部縫料傳送 裝置18具有一供針9穿過的針孔19。這些部件在第2圖中以 虚線示出。 下部縫料傳送裝置18用於與上部縫料傳送裝置2〇_起 在縫料傳送方向上傳送縫料’所述縫料傳送方向垂直於第1 和第2圖的視圖平面並指向該視圖平面中。 下部縫料傳送裝置18在縫紉工作中沿縫料傳送方向實 施傳送運動，所述縫料傳送運動在經由安裝於自由臂5中的 傳送裝置-傳遞機構21引導的情況下由主軸7的轉動運動驅 動。傳送裝置-傳遞機構21的一部分是沿著自由臂5延伸的 傳送裝置偏心軸22(參見第4圖），其偏心距e、即在旋轉對 稱軸線23與支承軸線24之間的偏差在第5圖中示出。此外傳 送裝置-傳遞機構21的一部分是沿自由臂5設置的擺動軸 24a。擺動軸24a通過針距調節器傳動裴置與縫紉機i的底軸 (未示出）傳動連接。通過針距調節器傳動襞置（在附圖中同 樣未示出）使擺動軸24a圍繞其軸線24b進行擺動運動◎通過 偏心軸22和設計成滑塊的傳遞體25，將能調節的傳送行程 傳遞到用於下部縫料傳送裝置18的傳送裝置支架以上。下 部縫料傳送裝置18以能相對於傳送骏置支架％賢直移位的 7 2〇1Hl575 :式支承在該傳送褒置支架26上。通過傳遞體25使下部缝 二傳达裝置18在下料料傳送裝置關相應傳送階段中被 :升到針㈣13的高度上方。擺動軸⑽的擺動運動被一運 傳送裝置支架26上’這樣便規定了傳送裝置 ^的傳送運動、即可相應地在縫駐作中實現的針跡 ^度。通祕式為另—運動桿27的支承體，使傳送裝置支 木26與-女裝在自由臂5中的切線刀傳遞機構四(下面還要 關述）的沿著自㈣5延伸馳桿Μ連接。拉桿Μ平行於擺 動軸24a設置。拉桿28橫向於㈣方向延伸。運動桿π一方 面以圍繞平行於轴線24延伸的鉸接軸義進行祕的方式 與傳送裝置支架26連接’另—方面以圍繞拉桿赠31進行 鉸接的方式與切線拉桿28連接。運動桿27在下部傳送工作 時圍繞拉桿軸線31的擺動運動在第4圖中通過雙箭觀示出。 通過形式為調節板33的傳送裝置調節元件規定運動桿 27沿拉桿軸線31_向位置。為此，調節板幻具有一又形 部34，該叉形部34在軸向兩側接合運動桿π。運動桿^在 叉形部34中沿軸向具有較小的間隙。調節㈣具有一帶固 定螺釘36的固定部35，通過該固定部％能在沿自由臂5的規 定軸向位置中將調節板則定在殼體15上。通過調節油 的能由此規定的軸向位置，便能規定運動桿27、進而是傳 送裝置支架26的軸向位置，以及與此相關的下部縫料傳送 裝置18的軸向位置》 切線拉桿28在其自由端部附近以能軸向移位的方式支 承在-相對殼體固定的滑套37中。滑套37設置於在端側圍 8 201111575 繞接合拉桿2 8的運動桿2 7和設計成可調叉形式的切線刀調 節兀件38之間。可調又38通過兩個固定螺釘39固定在切線 拉桿28上並相對於該切線拉桿28沿軸向固定。在此，固定 螺釘39的端部貼靠在拉桿28的被銑平面的壁部段4〇上，所 述壁部段40的軸向範圍（Axiaierstreckung)規定了可調叉％ 沿著拉桿28的軸向調節範圍。 可調又38、即切線刀調節元件的叉部段41(參見第5圖） 圍繞接合豎直延伸的支承銷42。支承銷42與切線刀傳遞機 構29的傳遞桿43以不能相對轉動的方式連接。傳遞桿43又 與線刀銷44以不能相對轉動的方式連接《線刀銷44賢直延 伸。線刀銷44的銷軸線45與支承銷42的銷軸線間隔開。 線刀銷44以能圍繞銷軸線45轉動的方式支承在相對殼 體固定的擺梭軸承46中。擺梭軸承46在第6圖中僅可見一局 部。擺梭軸承46同時用於支承縫紉機1的擺梭47。擺梭47具 有一帶用於抓住縫紉線的擺梭尖端48的擺梭體（參見第6 圖）。擺梭47能圍繞一豎直的擺梭軸線轉動，其中擺梭47的 旋轉驅動又由主軸7的運動引出。 線刀銷44與一切線刀或刮線刀49以不能相對轉動的方 式連接，所述切線刀或刮線刀49與一相對擺梭軸承固定的 反相刀50協作以切斷縫線。反相刀50固定在一支承板51 上。支承板51又與擺梭軸承46固定連接。 分別通過殼體窗5 2和5 3，從縫紉機1的同一側既能接觸 到傳送裝置調節元件、即調節板33，又能接觸到切線刀調 節元件38、即可調叉(參見第2圖）。 201111575 在縫紉機1進行縫紉工作時，在縫料的針跡區域中形成 線縫。在縫紉工作中，從主軸7起、經由底軸、通過針距調 節器傳動裝置使擺動軸24a進行擺動運動。通過運動桿26a 將該擺動運動傳遞到傳送裝置支架26，通過該傳送裝置支 4 26傳遞到下部縫料傳送裝置或送料滑塊18上。由於運動 桿26a固定在擺動軸24a上，傳送裝置支架26沿軸向、即橫 向於縫紉方向固定。此外，在缝紉機1進行縫紉工作時傳送 裝置偏心軸22旋轉，通過傳遞體25規定傳送裝置支架26的 傳送行程。通過兩個軸22和24a的驅動，下部縫料傳送裝置 18執行傳送運動以在縫紉方向上傳送縫料。 為了調節傳送裝置支架26沿自由臂5的軸向固定、即為 了規定下部縫料傳送裝置18橫向於縫紉方向的位置，首先 拆鬆運動桿26a在擺動軸24a上的固定。然後，通過殼體窗 52拆鬆調節板33的固定螺釘36，然後可以使調節板33沿著 在第2圖中的雙箭頭54移位。與該移位相應地，運動桿27、 傳送裝置支架26和運動桿26a橫向於縫紉方向移位，從而能 調節下部縫料傳送裝置18。 為了調節擺梭47的位置並且調節切線刀49的位置，可 以通過殼體窗53拆鬆兩個固定螺釘39，然後可以使叉38沿 軸向相對於拉桿28移動，這使得擺梭47、切線刀49和反相 刀40橫向於縫紉方向的位置相應地變化。 在縫紉工作期間，切線拉桿28保持軸向位置（不變），並 具有用於可調又38和運動桿27的支承桿的功能。 為進行切線，致動一在附圖中未示出的氣動缸，所述 10 201111575 氣動缸使拉桿2 8在靜止位置和切斷位置之間沿著第4圖中 的雙箭頭55移位。替代地，拉桿28在靜止位置和切斷位置 之間的移位也可以通過步進電機或起重磁體來實現。拉桿 2 8從靜止位置到切斷位置的移位使叉3 8和帶動的支承銷4 2 相應地軸向移位’其中，由於支承銷42的這種運動，使線 刀銷44在擺梭軸承36中圍繞銷軸線45擺動（參見在第4圖中 的雙箭頭56)。這使切線刀49相對於反相刀50進行相應的切 斷擺動運動’從而在兩個刀49、50之間切斷線。在拉桿28 軸向移位期間’拉桿28—方面相對於滑套37滑動，另一方 面相對於運動桿27滑動。在拉桿28軸向移位時，運動桿27 相對於殼體15沿軸向保持位置（不變），因為該運動桿27由相 對殼體固定的調節板33的叉形部34保持。亦即，調節板33 • 在切線期間同時作為用於固定運動桿27、進而是下部縫料 傳送裴置18的軸向位置的固定體。 在縫紉機1中，拉桿28同時具有在切線刀傳遞機構内傳 力的功能，以及支承運動桿27、和支承切線刀調節元件邡 的支承功能。 下面借助第7和8圖闡述自由臂式縫紉機57的雙針實施 方式。與已在上文中參考第㈤圖闡述的部件和功能相: 的部件和功能具有相同的附圖標記，不再對其進行詳細閣述。 錐縫切機57具有-共同的針桿58 ’所述針桿別具有用於 雙針縫幼機57的兩根縫幼針（在附圖.中未示出）的支承體 。在縫紉機57中，為兩根縫紉針皆配備有下部縫料傳送 裝置或者送料滑塊18，所述下部縫料傳送裝置具有對應的 11 201111575 上部縫料傳送裝置2G，所述上部縫料傳送裝置20相應具有 兩個用於兩根縫㉟針（未示出）的針眼。為兩根缝初針中的每 肴個單獨的擺梭47。兩個擺梭47中的每一個都支 承在單獨的擺梭轴承财，其中在第8圖中可以看出配屬給 在該圖中位於左側的擺梭47的擺梭軸承46。兩個擺梭軸承 46是設計成彼此分開的部件。 縫幼機57的兩個下部縫料傳送裝置18與傳送裝置支架 26連接。傳送裝置支架26以及傳送裴置_傳遞機構21的結構 與在根據第1至6圖的縫紉機1中的部件的結構相對應。縫紉 機57的兩根針中的每一根都具有—這樣配設的切線刀。切 線刀4 9和所屬的切線刀傳遞機構2 9與前面關於根據第！至6 圖的縫紉機1所述的切線刀49和所屬的切線刀傳遞機構29 相對應。 在縫紉機57中，拉桿28延長到超出運動桿27的位置並 且在其自由端部上具有另一可調又38，，所述另一可調叉38, 屬於用於第二切線刀49的另一切線刀傳遞機構29，所述第 二切線刀49與第二反相刀50協作。另一可調又38,也能沿著 拉桿28通過兩個螺釘39固定在一規定的軸向位置中，如前 面關於縫初機1闡述的那樣。為所述另一可調又38,的固定 螺釘39設有另一殼體窗60，通過該另一殼體窗6〇能從縫紉 機殼體15的同一側接觸到固定螺釘39，如殼體窗52、53那 樣。通過拆鬆固定螺釘39，特別是能規定縫紉機57的兩個 擺梭47的相互距離。 縫紉機57的縫紉工作和切線工作與前面關於縫紉機j 12 201111575 闡述的縫紉工作和切線工作相對應。在切線時，通過拉桿 28同時致動縫紉機57的兩個切線刀49。 【圖式簡單說明】 第1圖示出單針自由臂式縫紉機的正視圖； 第2圖示出在第1圖的自由臂端部的區域中的局部放大圖； 第3圖以類似於第2圖的視圖示出單針自由臂式縫紉機 的切線刀傳遞機構和傳送裝置-傳遞機構的部件； 第4圖以從上方傾斜觀察的透視圖示出第3圖所示的部件； 第5圖示出根據第3圖中的線V-V的剖視圖； 第6圖示出根據第5圖中的線VI-VI的剖視圖； 第7圖以透視圖示出雙針自由臂式縫紉機的自由臂端 部；和 第8圖以類似於第4圖的視圖示出根據第7圖的雙針自 由臂式縫紉機的切線刀傳遞機構和傳送裝置-傳遞機構的 部件。 【主要元件符號說明】 l···縫紉機 9…針 2…基板 10…豎直軸線 3···立柱 ll···線張緊裝置 4..·臂 12…支承板 5·..自由臂 13…針板部 6···頭部 14…針板滑板 7 · · ·主轴 15…殼體 8…針桿 16…彈簀 13 201111575 17…缺口 36···固定螺釘 18···下部縫料傳送裝置 37…滑套 19…針孔 38, 38’··.可調叉 20··.上部縫料傳送裝置 39···固定螺釘 21…傳送裝置-傳遞機構 40···壁部段 22···偏心轴 23…旋轉對稱軸線 24…支承轴線 24a…擺動轴 24b…轴線 25…傳遞體 26…支架 26a…運動桿 27···運動桿 28…切線拉桿 29…傳遞機構 30…较接轴線 31…拉桿轴線 32…雙箭頭 33…調節板 34…叉形部 35···固定部 41···叉部段 42…支承銷 43…傳遞桿 44…線刀銷 45…銷轴線 46…擺梭軸承 47…擺梭 48…擺梭尖端 49…刮線刀 50…反相刀 51…支承板 52, 53…殼體窗 54, 55, 56…雙箭頭 57…縫紉機 58…針桿 59…支承體 60…殼體窗 14201111575 VI. Description of the invention: 钃 【明家斤属4轩々贝】 The present invention relates to a sewing machine having a needle bar and a conveying device. [Previous skill chair 3 This type of seam cutting machine is known from US 1,01, 830 and DE 101 23 075 C1. SUMMARY OF THE INVENTION It is an object of the invention to improve a sewing machine of the type mentioned at the outset such that a slitting machine casing adjacent to the stitching area can be compactly designed. The object is achieved according to the invention by a sewing machine having the features given in the first item of the patent application. It has been found in accordance with the invention that a tie rod/link can be used to actuate the cutter or the wire cutter and to support the support of the conveyor-transmission mechanism. The fact that the drawbar is driven during the tangential movement does not interfere with the dual function described, since no stitching is allowed during this (tangential) period. A separate support rod for the support of the conveyor-transmission mechanism can be omitted. In the stitching area, the housing of the sewing machine, in particular the free arm of the sewing machine, can be designed to be very compact in this case. This achieves that the housing of the sewing machine is designed to be able to be in the area of the seam that is difficult to reach. Complete complex seaming tasks. By means of the fixed body fixed relative to the housing or fixed relative to the frame, it is possible to prevent the support body from being displaced when the pull rod is displaced, so that the transfer device-transfer mechanism remains stationary while actuating the tangential knife transfer mechanism. The support body of the transfer device-transmission mechanism is connected to the pull rod of the tangential knife transfer mechanism such that the support body is axially held relative to the sewing machine housing when the pull rod of the tangential knife transfer mechanism is axially displaced. ★ The actuation (motion) of the wire cutter and the dynamic guidance of the conveyor can be avoided, in particular: the actuation of the lining and the actuation of the tangential knife. The support body can be stored in the manner of an actuating lever. The actuating lever is connected to the transport device bracket via a hinged connection check structure. In principle, the sewing machine according to the invention does not have to be equipped with a complete tangential device, ▲ which is equipped with a tangential device according to the second item of the patent scope, which expands the functionality of the seam rushing machine. The tie rod can be displaced by the tangential knife transfer mechanism to perform the tangential line. The displacement drive is designed to be a pneumatic drive, a stepper motor or a hoist magnet/stroke magnet that can be controlled. According to the tangential knife adjusting member of the third application of the patent application, the position of the tangential cutter relative to the position of the stitch forming member of the sewing machine is realized, and in particular, the tangential cutter is adjusted transversely to the sewing direction. According to the fourth aspect of the patent application, the housing adjustment member that is fixed relative to the housing or fixed relative to the frame realizes the position of the predetermined conveying device relative to the stitch forming member of the sewing machine, and particularly realizes the adjustment of the conveying device in the sewing direction. The transfer device can be displaced by the transfer device transfer mechanism. A common adjustment of the shuttle/spindle/gloss device (Greifer) and the tangential knife is achieved according to the public support unit of claim 5th. This can be achieved with a tangential knife adjustment element which also has the function of a shuttle adjustment element. The shuttle can be a vertical shuttle, a shuttle that rotates about a vertical axis. According to the scope of the patent application, the reverse-phase knives arranged to be fixed relative to the shuttle can be aligned with the tangential cutter by the displacement of the tangential cutter adjusting member, which has a common support structure with the shuttle. The same relative shuttle is fixed. As a result, after the tangential knife adjustment element has been displaced, it is no longer necessary to position the knives relative to the counter knives. According to the free-arm type sewing machine of the seventh application, the advantage of the compact sewing machine casing in the stitch forming region can be particularly excellent. The free arm can, for example, allow for the laying of tubular seams. The double needle sewing machine according to item 8 of the patent application can be used particularly in the manufacture of circular or tubular filters. The two thread cutting devices according to item 9 of the scope of the patent application improve the functionality of the double needle sewing machine. The position of the two tangential knives is independently specified in accordance with the two tangential knife adjustment elements of claim 10 of the scope of the patent application. In this case, it is also possible to support the knives of the two-needle sewing machine and the associated shuttles each by a common support unit. As a result, it is possible to easily adjust the distance of the shuttles from each other by the tangential knife adjustment element having the function of the shuttle adjustment element at the same time. The adjustability of the adjusting member according to the scope of claim 11 simplifies the adjustment of the sewing machine. BRIEF DESCRIPTION OF THE DRAWINGS Embodiments of the invention are explained in detail below with reference to the drawings. 1 is a front view showing a single-needle free-arm sewing machine; FIG. 2 is a partial enlarged view showing a region of the free arm end in FIG. 1; FIG. 3 is similar to the second The view of the drawing shows the components of the tangential knife transfer mechanism and the transfer device-transfer mechanism of the single needle free arm type sewing machine; Fig. 4 shows the parts shown in Fig. 3 in a perspective view obliquely viewed from above; 201111575 5th The figure shows the cross-sectional circle of the line 第 in the sixth diagram; x 煨 the line VI_VI & section of the figure 5 is a through-view-mountain; and the double-needle free-arm sewing machine Figure 8 of the free arm end shows the double needle self-assembly according to Fig. 7 in a view similar to that of the arm machine. Knife blade transfer mechanism and transfer device-transfer mechanism [Embodiment] The detailed description of the preferred embodiment extends to have a substrate 2 having an arm 4 which is upwardly formed as a free arm 5. The portion of the substrate 2 opposite the arm 4 is designed to have a side machine (four) phase (four) (four) which is self-contained and mounted on all sides of the material and the box. The free arm 5 is transverse to the arm arm 5 so as to allow the tubular seam to be pulled into the free field and to be able to reach the initial region of the seam that cannot be reached by the C-slot machine in the zone. Or, for example, a circumferential seam is formed. The upper arm 4 is in the head 6 - in the figure i, the tone is shown. A spindle 7 having a right end is not rotatably supported in the upper arm 4. The spindle 7 is driven in the head 6 to act as a crank drive for moving the wire rod. The crank gear 8 is rotatably coupled to the needle bar 8 supported in the head portion 6 so that the needle 9 carries the _ needle 9 along the lower portion of 1 & Through the crank transmission, the bow guide is moved up and down by the line 1〇 (see Figure 2). Needle 9 in the needle eye 丨 = tensioning the U and the thread take-up from the bobbin, the tube is _ line. The upper side is designed as a support plate 12 for supporting the sewing material (see 6 201111575, Fig. 2). The support plate 12 is divided into a needle plate portion 13 and a needle plate slide plate 14. The needle plate portion 13 is fixedly attached to the casing 15 of the sewing machine 1. The needle plate slide 14 can be displaced to the right in Fig. 2 after fastening the magazine 16 (see Fig. 2) and allows (person) to access the components disposed under the needle plate slide 14. The needle plate portion 13 is formed with a notch 17 through which the lower portion, the suture conveying device or the feed slider/feeding tooth 18 passes, in the stitching area of the needle 9. The lower sewing material transfer device 18 has a pinhole 19 through which the needle 9 passes. These components are shown in phantom in Figure 2. The lower sewing material conveying device 18 is configured to convey the sewing material in the sewing material conveying direction from the upper sewing material conveying device 2'. The sewing material conveying direction is perpendicular to the viewing planes of the first and second figures and is directed to the viewing plane. in. The lower sewing material conveying device 18 performs a conveying motion in the sewing conveyance direction in the sewing work, which is rotated by the spindle 7 in the case of being guided via the conveying device-transfer mechanism 21 mounted in the free arm 5. drive. A part of the transfer device-transfer mechanism 21 is a conveyor eccentric shaft 22 extending along the free arm 5 (see Fig. 4), the eccentricity e, i.e. the deviation between the rotational symmetry axis 23 and the support axis 24, is at the 5th Shown in the figure. Further, a part of the transfer device-transfer mechanism 21 is a swing shaft 24a provided along the free arm 5. The swing shaft 24a is drivingly coupled to a bottom shaft (not shown) of the sewing machine i via a stitch adjuster transmission. The pivoting movement of the pivoting shaft 24a about its axis 24b is effected by means of a pinion adjuster drive (also not shown in the figures). The adjustable travel path can be adjusted by the eccentric shaft 22 and the transmission body 25 designed as a slider. It is passed over the conveyor bracket for the lower sewing material transfer device 18. The lower sewing material transfer device 18 is supported on the transfer holder 26 in a manner that is capable of being displaced relative to the transfer guide holder. By means of the transfer body 25, the lower slit transfer device 18 is raised above the height of the needle (four) 13 in the corresponding transport phase of the lower material transport device. The oscillating motion of the oscillating shaft (10) is carried by the transport unit bracket 26, which dictates the transport movement of the transport unit, i.e., the stitching degree achieved in the sling. The secret type is the support body of the other movement rod 27, so that the conveyor branch 26 and the tangential knife transmission mechanism 4 (also to be described below) in the free arm 5 extend along the self (four) 5 connection. The pull rods are arranged parallel to the swing shaft 24a. The tie rod 28 extends transversely to the (four) direction. The side of the moving rod π is connected to the conveyor bracket 26 in a manner that is hinged about the hinge axis extending parallel to the axis 24, and is connected to the threaded rod 28 in a manner to articulate around the tie rod 31. The oscillating movement of the moving rod 27 about the rod axis 31 during the lower conveying operation is illustrated by a double arrow in Fig. 4. The position of the movement lever 27 along the lever axis 31_ is defined by the conveyor adjustment member in the form of the adjustment plate 33. To this end, the adjustment plate has a shape 34 which engages the movement rod π on both axial sides. The moving rod has a small gap in the axial direction in the fork portion 34. The adjustment (4) has a fixing portion 35 with a fixing screw 36 by which the adjustment plate can be positioned on the housing 15 in a predetermined axial position along the free arm 5. By adjusting the axial position of the oil, the axial position of the moving rod 27, and thus the conveyor bracket 26, and the axial position of the lower sewing material transfer device 18 associated therewith can be defined. It is supported in the axially displaceable manner in the vicinity of its free end in a sliding sleeve 37 which is fixed relative to the housing. The sliding sleeve 37 is disposed between the end rod 8 201111575 about the engagement rod 28 of the engagement rod 28 and the tangential adjustment element 38 designed in the form of an adjustable fork. The adjustable 38 is fixed to the tangential tie rod 28 by means of two fixing screws 39 and is axially fixed relative to the tangential tie rod 28. The end of the fastening screw 39 abuts against the flattened wall section 4 of the tie rod 28 , the axial extent of the wall section 40 defining the adjustable fork % along the tie rod 28 . Axial adjustment range. Adjustable 38, i.e., the fork section 41 of the tangential knife adjustment element (see Figure 5) surrounds the support pin 42 extending vertically. The support pin 42 and the transfer lever 43 of the tangential knife transfer mechanism 29 are connected in a non-rotatable manner. The transfer rod 43 is in turn coupled to the wire cutter pin 44 in a rotationally non-rotatable manner. The pin axis 45 of the wire cutter pin 44 is spaced from the pin axis of the support pin 42. The wire cutter pin 44 is supported in a shuttle bearing 46 that is fixed relative to the housing in such a manner as to be rotatable about the pin axis 45. The shuttle bearing 46 is only visible in one portion in Fig. 6. The shuttle bearing 46 is simultaneously used to support the shuttle 47 of the sewing machine 1. The shuttle 47 has a shuttle body for gripping the shuttle tip 48 of the sewing thread (see Fig. 6). The shuttle 47 is rotatable about a vertical shuttle axis, wherein the rotary drive of the shuttle 47 is in turn led by the movement of the spindle 7. The wire cutter pin 44 is connected to the wire cutter or the wire cutter 49 in a rotationally fixed manner, and the wire cutter or wire cutter 49 cooperates with a reverse knife 50 fixed with respect to the shuttle bearing to cut the stitch. The reverse knives 50 are fixed to a support plate 51. The support plate 51 is in turn fixedly connected to the shuttle bearing 46. Through the housing windows 52 and 53 respectively, the conveyor adjustment element, i.e. the adjustment plate 33, can be accessed from the same side of the sewing machine 1, and the tangential adjustment element 38 can be contacted, ie the adjustment can be made (see Fig. 2) ). 201111575 When the sewing machine 1 performs sewing work, a seam is formed in the stitch area of the sewing material. In the sewing operation, the swing shaft 24a is oscillated from the main shaft 7 via the bottom shaft via the stitch adjuster transmission. This oscillating motion is transmitted by the travel bar 26a to the conveyor bracket 26, through which it is transferred to the lower sewing conveyor or feed slider 18. Since the moving rod 26a is fixed to the swing shaft 24a, the conveyor holder 26 is fixed in the axial direction, that is, in the sewing direction. Further, when the sewing machine 1 performs the sewing operation, the conveying device eccentric shaft 22 rotates, and the conveying body 25 defines the conveying stroke of the conveying device holder 26. By the driving of the two shafts 22 and 24a, the lower sewing material conveying device 18 performs a conveying motion to convey the sewing material in the sewing direction. In order to adjust the position of the conveyor holder 26 in the axial direction of the free arm 5, i.e., to define the position of the lower material conveying device 18 transverse to the sewing direction, the fixing of the movement rod 26a on the swing shaft 24a is first removed. Then, the fixing screw 36 of the regulating plate 33 is detached through the casing window 52, and then the regulating plate 33 can be displaced along the double arrow 54 in Fig. 2 . In response to this shift, the moving rod 27, the conveyor holder 26 and the moving rod 26a are displaced transversely to the sewing direction, so that the lower sewing material transfer device 18 can be adjusted. In order to adjust the position of the shuttle 47 and adjust the position of the tangential cutter 49, the two fixing screws 39 can be detached through the housing window 53, and then the fork 38 can be moved axially relative to the tie rod 28, which causes the shuttle 47, tangent The position of the knife 49 and the counter knife 40 transverse to the sewing direction changes accordingly. During the sewing operation, the tangential tie rod 28 maintains the axial position (unchanged) and has the function of a support rod for the adjustment 38 and the movement rod 27. To perform the tangential line, a pneumatic cylinder, not shown in the drawings, is actuated, and the 10 201111575 pneumatic cylinder displaces the tie rod 28 between the rest position and the cut position along the double arrow 55 in Fig. 4. Alternatively, the displacement of the tie rod 28 between the rest position and the cut position can also be achieved by a stepper motor or a lifting magnet. The displacement of the tie rods 28 from the rest position to the cut-off position causes the forks 38 and the driven support pins 4 2 to be axially displaced accordingly [wherein, due to this movement of the support pins 42, the thread cutter pins 44 are in the shuttle The bearing 36 is pivoted about the pin axis 45 (see double arrow 56 in Fig. 4). This causes the tangential cutter 49 to perform a corresponding cutting oscillating motion with respect to the counter knives 50 to cut the line between the two knives 49, 50. During the axial displacement of the pull rod 28, the pull rod 28 slides relative to the sliding sleeve 37 and the other side slides relative to the moving rod 27. When the pull rod 28 is axially displaced, the moving rod 27 is held in the axial position relative to the housing 15 (unchanged) because the moving rod 27 is held by the fork portion 34 of the adjusting plate 33 fixed to the opposite housing. That is, the adjusting plate 33 is simultaneously used as a fixed body for fixing the moving rod 27 and further the axial position of the lower sewing material conveying device 18 during the tangential line. In the sewing machine 1, the tie rod 28 simultaneously has a function of transmitting force in the tangential knife transmission mechanism, and a support function for supporting the movement rod 27 and supporting the tangential cutter adjustment member 。. The double needle embodiment of the free arm sewing machine 57 will now be described with reference to Figs. The components and functions that have been described above with reference to the components (b) in the drawings have the same reference numerals and will not be described in detail. The taper slitter 57 has a common needle bar 58' which has a support for two slit needles (not shown in the drawings) for the double needle slitting machine 57. In the sewing machine 57, both sewing needles are equipped with a lower sewing material conveying device or a feeding slider 18 having a corresponding 11 201111575 upper sewing material conveying device 2G, the upper sewing material conveying device 20 correspondingly has two pinholes for two slits 35 (not shown). A separate shuttle 47 for each of the two stitches. Each of the two shuttles 47 is supported by a separate shuttle bearing, wherein the shuttle bearing 46 assigned to the shuttle 47 on the left in the figure can be seen in Fig. 8. The two shuttle bearings 46 are components that are designed to be separated from each other. The two lower sewing material transfer devices 18 of the slitting machine 57 are coupled to the conveyor holder 26. The structure of the conveyor holder 26 and the conveying device_transmission mechanism 21 corresponds to the structure of the components in the sewing machine 1 according to the first to sixth drawings. Each of the two needles of the sewing machine 57 has a tangential cutter arranged in this manner. The tangential cutter 4 9 and the associated tangential knife transfer mechanism 2 9 are related to the front according to the first! The tangential cutter 49 described in the sewing machine 1 of Fig. 6 corresponds to the associated tangential cutter transmission mechanism 29. In the sewing machine 57, the pull rod 28 is extended beyond the position of the movement rod 27 and has another adjustable side 38 on its free end, the other adjustable fork 38 belonging to the other for the second tangential cutter 49 All of the wire cutter transfer mechanisms 29 cooperate with the second reverse cutter 50. Another adjustable 38 can also be secured along the drawbar 28 by a plurality of screws 39 in a defined axial position, as previously explained with respect to the slitting machine 1. A further housing window 60 is provided for the further adjustable screw 39, by means of which the other housing window 6 can be contacted from the same side of the sewing machine housing 15 to a fixing screw 39, such as a housing The windows 52, 53 are the same. By detaching the fixing screw 39, in particular, the mutual distance of the two shuttles 47 of the sewing machine 57 can be specified. The sewing work and the tangential work of the sewing machine 57 correspond to the sewing work and the tangential work described above with respect to the sewing machine j 12 201111575. At the time of tangential threading, the two tangential knives 49 of the sewing machine 57 are simultaneously actuated by the tie rods 28. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front elevational view showing a single-needle free-arm type sewing machine; Fig. 2 is a partially enlarged view showing a region of a free arm end portion of Fig. 1; 2 is a view showing a tangential knife transfer mechanism and a transfer device-transfer mechanism of the single-needle free-arm type sewing machine; FIG. 4 is a view showing the part shown in FIG. 3 in a perspective view obliquely viewed from above; The figure shows a cross-sectional view according to the line VV in Fig. 3; the sixth figure shows a cross-sectional view according to the line VI-VI in Fig. 5; and Fig. 7 shows the free arm end of the double-needle free arm type sewing machine in a perspective view And FIG. 8 show the components of the tangential knife transfer mechanism and the transfer device-transfer mechanism of the double needle free arm type sewing machine according to Fig. 7 in a view similar to Fig. 4. [Description of main component symbols] l···Sewing machine 9...Needle 2...Substrate 10...Vertical axis 3···Post column ll···Line tensioning device 4..·arm 12...support plate 5·..free arm 13...needle plate part 6···head 14...needle plate slide 7 · · ·Spindle 15...housing 8...needle rod 16...elastic 13 201111575 17...notch 36···fixing screw 18···lower seam Material conveying device 37...slider 19...pinhole 38, 38'·. adjustable fork 20··. upper sewing material conveying device 39···fixing screw 21... conveying device-transmission mechanism 40···wall section 22·· eccentric shaft 23... rotational symmetry axis 24... support axis 24a... oscillating shaft 24b... axis 25...transfer body 26...bracket 26a...moving rod 27···moving rod 28...tangential rod 29...transfer mechanism 30 ...the connecting axis 31...the lever axis 32...the double arrow 33...the adjusting plate 34...the fork portion 35···the fixing portion 41···the fork portion 42...the support pin 43...the transmission rod 44...the wire cutter pin 45 ...pin axis 46...shuttle bearing 47...shuttle 48...shuttle tip 49...scraper 50...reverse knife 51...support plate 52, 53...case window 54, 55, 56...double arrow 57... Sewing machine 58...needle bar 59...support 60...case window 14