201012998 六、發明說明： 【發明所屬之技術領域】 本發明是關於採用可使圓形物、筒狀物縫製作業操作 容易的送出臂式缸筒，透過一邊切齊一邊縫合上坯布的坯 布端或上下兩方的坯布端成爲最適合緊身褲的褲底縫合、 內褲的褲底縫合或T恤的肩部縫合等之送出臂式縫紉機的 改良。 Ο 【先前技術】 先前，此種送出臂式縫紉機，例如已知有如第10圖 、第1 1圖所示，構成爲針線絡紗器（L字形構件）40通 過形成在頭部41正面側前蓋41a的開口（弓形溝孔）42 突出在頭部41外方，未圖示的分紗器及活動刀片（刀具 )擺動用的連桿46通過形成在頭部41背面側後蓋41b的 開口 47連結於驅動軸48的偏心部49 (參照專利文獻1 ) 此外，上述分紗器及活動刀片之驅動機構的改良發明 ，如第1 2圖、第1 3圖所示，已知有將分紗器的驅動機構 和活動刀片的驅動機構分開，藉此減輕以腳踏板等上昇壓 腳時的負荷（參照專利文獻2)。 〔專利文獻1〕日本特公昭3 0-5 83 5號公報（特別是 參照第2圖、第5圖） 〔專利文獻2〕美國專利第2,914,009號說明書（特 別是參照第1圖、第3圖） -5- 201012998 【發明內容】 〔發明欲解決之課題〕 然而’上述專利文獻1記載之發明的送出臂式縫紉機 ，驅動時若在頭部41內連續進行給油時會發生從開口 42 、47漏油’以致會有污損到缸筒上的布坯或針線絡紗器 40附近之針線的問題。 此外，上述專利文獻2記載之發明的送出臂式縫紉機 是成爲活動刀片驅動機構的磁軛50從形成在頭部51的橫 @ 蓋51a的開口 52突出於外方之構造，所以該送出臂式縫 紉機，同樣有當供油給頭部51內時也會產生漏油的問題 〇 既然如此，若是以不同於頭部41、5 1側壁的個別體 蓋構件等堵住該等各開口 42、47、52時，則會造成構件 數量及組裝工數變多而提高成本，此外構造也會變複雜。 於是，本發明是爲了解決上述問題所硏創的發明，目 的是提供一種能夠使頭部外壁構造簡化達到降低成本的同 時能夠防止頭部漏油的送出臂式縫紉機。 〔用以解決課題之手段〕 本發明，如申請專利範圍第1項記載所示，爲了能夠 容易理解本發明的內容一邊參照第】圖至第9圖中標示的 圖號一邊進行說明時，送出臂式縫紉機，具備有：從缸筒 1的基端豎立設置成水平延伸的機座2;連設在機座2的 頭部3;可旋轉地支撐在機座2的上軸4;與配置在頭部3 -6- 201012998 之針棒1 0的滑動同步形成上下移動的針線絡紗器1 4 ;配 置在缸筒1的針板13上，附設有固定刀片30的壓腳16; 在壓腳16上方左右移動的分紗器24;及朝壓腳16的固定 刀片30進退移動的活動刀片27，其特徵爲，具備：支撐 在以隔著指定間隔形成在機座2的第1輪轂2b及第2輪 轂2c，連動於上軸4的旋轉繞著軸心擺動的擺動軸6;下 端固定著壓腳16的推壓軸15;與推壓軸15配置在同軸心 φ 上連結於分紗器24的分紗器用導軸21a;與推壓軸15配 置在同軸心上連結於活動刀片27的活動刀片用導軸21b; 及在頭部3內連結於分紗器用導軸21a，連動於上軸4的 旋轉使分紗器用導軸21a繞著推壓軸15擺動的分紗器用 連桿28a，此外，頭部3，具有：由前蓋3a、後蓋3c、橫 蓋3d形成的側壁；及連接在該側壁下端緣的下壁3b，另 外，分紗器用導軸21a、活動刀片用導軸21b及推壓軸15 是構成分紗器用導軸21a形成爲筒狀套嵌在的推壓軸15’ 〇 活動刀片用導軸21b形成爲比分紗器用導軸21a還大直徑 的筒狀套嵌在分紗器用導軸21a外圍之三重軸構造的同時 ，插通在貫穿下壁3b的第1圓孔3bb’並且由上述側壁覆 蓋著，擺動軸6的一端是從第1輪轂2b朝後蓋3c突出使 固定在該突出端部的臂6b連結在活動刀片用連桿28b — 端的同時，固定在活動刀片用導軸21b上端的動作片21b2 是朝後蓋3c突出使該突出端部連結在活動刀片用連桿28b 的另—端，活動刀片用連桿28b配置在第1輪轂2b和後 蓋3c之間，擺動軸6的另一端是透過第2輪轂2c從機座 201012998 2的外壁突出，該突出端部固定著針線絡紗器14。 申請專利範圍第1項記載的送出臂式縫紉機，也可構 成爲如申請專利範圍第2項的記載所示，將軸支撐在頭部 3內的上推把17的軸部17a的基端通過貫穿在後蓋3c的 第2圓孔3cl突出於外方，固定在該突出端部的臂31連 結在上推把操作用連桿19。 〔發明效果〕 〇 根據本發明時，分紗器用導軸、活動刀片用導軸及推 壓軸是形成爲三重軸構造’連結在活動刀片用導軸上端的 活動刀片用連桿是配置在第1輪轂和後蓋之間’因此能夠 使頭部側壁簡化的同時以低成就能夠形成密閉性。此外’ 針線絡紗器是固定在通過第2輪轂從機座外壁突出於外方 的擺動軸6的突出端部，頭部側壁就不需如先前技術所示 形成局部性開口，因此能夠形成爲密閉性（封閉性）。 此外，因頭部的側壁是簡化形成密閉性’所以就有能 © 夠防止缸筒上的布坯或針線絡紗器附近的針線受到油污損 的優點。 【實施方式】 〔發明之最佳實施形態〕 以下，根據圖面對本發明的最佳實施形態例進行說明 。第1圖是本發明一實施例的送出臂式縫紉機外觀透視圖 。第2圖是該送出臂式縫紉機的頭部橫剖面圖。第3圖是 -8- 201012998 表示推壓軸、分紗器用導軸、活動刀片用導軸、分紗器及 活動刀片的組裝狀態背面圖。第4圖是第3圖的A-A線剖 面圖。第5圖是分紗器用導軸、活動刀片用導軸及活動刀 片的分解透圖。第6圖是推壓軸、分紗器及壓腳的分解透 視圖。第7圖是推壓軸、壓腳及上推把的分解透視圖。第 8圖是針棒、針棒用連桿構件、擺動軸、鐘錘槓桿把及桿 的分解透視圖。第9圖是表示推壓軸、分紗器用導軸及活 φ 動刀片用導軸的下部密封狀態的局部剖面圖。 如第1圖、第2圖所示，缸筒1是形成爲沿著布坯輸 送方向X延伸的送出臂型，缸筒1的基端側豎立設有機座 2，該機座2是構成爲水平延伸在與缸筒1伸出方向交叉 的方向。機座2的前端連設有伸出在缸筒1前端側上方的 頭部3。該頭部3具備有由前蓋3a、後蓋3c、橫蓋3d形 成的側壁。後蓋3c是大槪沿著機座2前端形成配置，其 端部是連接於頭部3。前蓋3a是和後蓋3c成相向配置， Φ 其端部是連接於頭部3。橫蓋3d是配置成接觸前蓋3a及 後蓋3c的緣部，前蓋3a和橫蓋3d的接合部是以頭部3 的支柱3e加強著。另，該側壁的下端緣連接有下壁3b， 該側壁的上端緣連接有上壁。 如第2圖所示，機座2內配置有沿著該機座2延伸方 向形成的上軸4，該上軸4的一端部是朝機座2的外方突 設’該突出端部具備有驅動皮帶用皮帶輪5。接著，頭部 3內水平配置有擺動軸6，上軸4和擺動軸6是形成爲平 行。另’擺動軸6是由形成在機座2的第1輪轂2b的軸 -9- 201012998 套6f及第2輪轂2c的軸套6e支撐著，擺動軸6上，固 定著如第8圖所示的鐘錘槓桿把7。鐘錘槓桿把7的一端 是連結於設置在上軸4的偏心部8所連結的桿9，另一端 是連結在安裝於針棒10的針棒用連桿構件11 (參照第8 圖）。擺動軸6是連動於上軸4形成擺動，該擺動會傳動 至鐘錘槓桿把7、針棒用連桿構件11使針棒10上下移動 。另，第8圖中，12是表示針，13是表示針板。 如第1圖、第2圖所示，頭部3配置有連動於擺動軸 _ 6繞著該擺動軸6形成上下移動的針線絡紗器1 4。於該狀 況時，擺動軸6的一端部6a是從機座2正面側外壁2a突 出在外方，該突出端部6a固定著針線絡紗器14。另，圈 狀的密封件3aa是配置成由軸套6e覆蓋著，形成能夠更 確實防止油從第2輪轂2c的軸套6e端漏出。如上述將針 線絡紗器14固定在從機座2外壁2a突出外方的擺動軸6 的突出端部6a，能夠使頭部3的正面側前蓋3a不必如第 10圖、第11圖所示的先前例頭部41的前蓋41a形成有針 ® 線絡紗器14突出用的開口 42，因此能夠使頭部3的前蓋 3 a形成爲密閉性。 第2圖〜第3圖、第6圖中，頭部3內垂直配置有推 壓軸15，該推壓軸15的下端部15a是從貫穿在頭部下壁 3b的第1圓孔3bb突出於下方，該突出下端部15a具備有 壓腳16。壓腳16附設有固定刀片30。 如第2圖、第7圖所示，頭部3內支撐有可繞著軸部 17a轉動具有軸部17a的上推把17，軸部17a的基端是通 -10· 201012998 過貫穿在後蓋3c的第2圓孔3cl所配置的圈狀密封件3cc 往外突出著。利用圈狀密封件3cc能夠更確實防止油從第 2圓孔3c 1漏出。伴隨著該上推把17的轉動其前端17b會 對固定在推壓軸15的軸環18從下方卡合，在該卡合時上 昇推壓軸15使壓腳16從缸筒1往上方離開。 第7圖所示的上推把17的軸部17a突出端部（基端 )固定著臂31的同時，該臂31連結有上推把操作用連桿 φ 19。如第3圖至第5圖所示，外嵌在推壓軸15同軸心上 的導軸21是分開成爲分紗器用導軸21a和活動刀片用導 軸21b，使分紗器用導軸21a、活動刀片用導軸21b及推 壓軸15形成爲三重軸構造。分紗器用導軸21a是下端具 有動作片21 aa(參照第5圖），動作片21 aa是嵌插在可 旋轉支撐於推壓軸15的傳動構件23a的凹部23aa (參照 第4圖、第6圖）。傳動構件23a是如第6圖所示透過分 紗器連結構件23b連結於分紗器支撐軸22，分紗器支撐軸 # 22是插通在貫穿壓腳16基部的支撐孔16a。分紗器支撐 軸22的下端安裝有分紗器24。 活動刀片用導軸21b是如第5圖所示下端具有固定片 21bl，活動刀片連結構件26.是安裝在固定片21bl。活動 刀片連結構件26透過形成在上下的一對支撐孔26a、26a 使活動刀片支撐軸25支撐成可滑動，安裝在活動刀片支 撐軸25的卡止片25a是由設置在該支撐孔26a、26a間的 彈簧25b彈推著。活動刀片支撐軸25下端安裝有活動刀 片27。該等分紗器24及活動刀片27的左右移動是縫紉機 -11 - 201012998 驅動時在壓腳16附近執行。活動刀片27是朝壓腳16的 固定刀片30進退移動。 此外，連動於上軸4的旋轉使分紗器用導軸21a及活 動刀片用導軸21b繞著推壓軸15擺動的連桿28’設有分 紗器用連桿28a和活動刀片用28a。接著，如第2圖、第 5圖所示，分紗器用導軸31a的上端由螺絲21 a2固定著動 作片21al，動作片21al的前端安裝有球接頭21a3。在頭 部3內，以分紗器用連桿28a將分紗器用導軸21a的球接 φ 頭21a3和上軸4的分紗器用偏心部（未圖示）連結，使 分紗器用導軸21a隨著上軸4的旋轉形成繞著推壓軸15 擺動。另一方面，如第2圖、第3圖、第5圖所示，活動 刀片用導軸21b上端是由螺絲21b3固定著動作片21 b2， 動作片21 b2的前端安裝有球接頭21 b4。如第2圖、第8 圖所示，擺動軸6的另一端部是從第1輪轂2b朝後蓋3c 突出，該突出端部所固定的擺動軸6的臂6b安裝有球接 頭6c。該球接頭6c，和從活動刀片用導軸21b上端朝後 Θ 蓋3c突出的動作片21b2的球接頭21b4是以活動刀片用 連桿28b連結著，使活動刀片用導軸21b隨著擺動軸6的 擺動形成繞著推壓軸15擺動。另，後蓋3c附設有連接上 壁的上蓋和連接下壁3b的下蓋，該等蓋是夾著活動刀片 用連桿28b的臂6b側連結部份位於上下。因此，活動刀 片用連桿2 8b在頭部3內實質上是配置在第1輪轂2b和 後蓋3 c之間。 如上述在頭部3內，擺動軸6的另一端部（臂6b的 -12- 201012998 球接頭6c)是連結在活動刀片用連桿28b另一端部（動作 片21 b2的球接頭21 b4)的同時，分紗器用連桿28a的另 一端部是連結在上軸4的分紗器用偏心部（未圖示），因 此如第2圖所示頭部3的背面側後蓋3 c就不需要在第9 圖、第1 〇圖所示的先前例頭部4 1的背面側後蓋4 1 b或在 第1 0圖、.第1 2圖所示的頭部5 1的側面側後蓋41 b形成 開口 47，因此能夠使頭部3的後蓋3c構造簡化達到封閉 • 化。 如第3圖、第4圖所示，上述分紗器用導軸21a、活 動刀片用導軸21b及推壓軸15是構成分紗器用導軸21a 形成爲筒狀套嵌在推壓軸15，活動刀片用導軸21b形成比 分紗器用導軸21a還大直徑的筒狀套嵌在分紗器用導軸 21a外圍的三重軸構造。接著，上述分紗器用導軸21a、 活動刀片用導軸21b及推壓軸15是插通在貫穿下壁3b的 圓孔3bb，活動刀片用導軸21b是透過固定在圓孔3bb的 • 軸承29支撐在圓孔3bb。如上述在頭部3內將上述分紗器 用導軸21a、活動刀片用導軸21b及推壓軸15構成爲三重 軸構造，能夠如第2圖所示使頭部3的側面側橫蓋3d不 必如第12圖、第13圖所示的頭部51的橫蓋5 1 a形成開 口 52，因此能夠使頭部3的橫蓋3d構造簡化達到封閉化 〇 另，如第9圖所示，分紗器用導軸21a下端的推壓軸 15用孔的周邊形成有凹部，該凹部埋入有圈狀的油封圈 21c。活動刀片用導軸21b下端的導軸21a用孔的周邊及 -13- 201012998 軸承29下端的導軸21b用孔的周邊也形成有凹部，該凹 部埋入有圈狀的油封圈21d、21e。該等圈狀油封圈21c、 21d、21e的配備，能夠更確實防止油從上述三重軸構造漏 出。 如上述，分紗器用導軸21a、活動刀片用導軸21b及 *推壓軸15是構成爲三重軸構造，連結在活動刀片用導軸 21b上端的活動刀片用連桿28b是配置在第1輪轂2b和後 蓋3 c之間，因此能夠使頭部3的側壁簡化同時能夠以低 成本達到密閉性。此外，針線絡紗器1 4是固定在通過第2 輪轂2c從機座2外壁突出外方的擺動軸6的突出端部6a ，所以頭部3的側壁（前蓋3a、後蓋3c、橫蓋3d)就不 用如先前例形成局部性開口，能夠簡化達到封閉化，因此 就能夠確實防止縫紉機1上的布坯或針線絡紗器14附近 的針線受到油污損。[Technical Field] The present invention relates to a delivery arm cylinder that can easily operate a circular object or a cylindrical sewing operation, and sutures the end of the fabric on the side of the fabric or The upper and lower fabric ends are an improvement of the arm-slit sewing machine which is most suitable for the undercut of the leggings, the underpants of the underpants, or the shoulder stitching of the T-shirt.先前 [Prior Art] As described above, for example, as shown in Figs. 10 and 11 , the delivery arm type sewing machine is configured such that a needle thread winder (L-shaped member) 40 is formed in front of the front side of the head portion 41. The opening (the arcuate groove) 42 of the cover 41a protrudes outside the head 41, and the yarn splitter (not shown) and the link 46 for swinging the movable blade (tool) pass through the opening formed in the back side of the head 41. The eccentric portion 49 that is coupled to the drive shaft 48 (see Patent Document 1). Further, in the improved invention of the drive mechanism of the yarn splitter and the movable blade, as shown in Figs. 2 and 3, a branch is known. The drive mechanism of the yarn feeder and the drive mechanism of the movable blade are separated, thereby reducing the load when the foot is lifted by a foot pedal or the like (refer to Patent Document 2). [Patent Document 1] Japanese Patent Publication No. 3 0-5 83 5 (see, in particular, FIG. 2 and FIG. 5) [Patent Document 2] US Patent No. 2,914,009 (Specific reference to FIG. 1 and FIG. 3) [5] In the case of the delivery arm type sewing machine of the invention described in the above Patent Document 1, when the oil is continuously supplied to the head 41 during driving, the openings 42 and 47 are generated. The oil leakage is such that there is a problem of staining the needle thread on the cylinder or the needle thread in the vicinity of the needle winder 40. Further, the delivery arm type sewing machine of the invention described in the above-mentioned Patent Document 2 has a structure in which the yoke 50 serving as the movable blade drive mechanism protrudes outward from the opening 52 formed in the horizontal cover 51a of the head portion 51, so that the delivery arm type The sewing machine also has the problem of oil leakage when the oil is supplied to the head 51. In this case, the openings 42 and 47 are blocked by individual body members or the like different from the side walls of the heads 41 and 51. At 52 o'clock, the number of components and the number of assembly workers will increase, and the cost will increase, and the structure will become complicated. Accordingly, the present invention has been made to solve the above problems, and an object of the invention is to provide a delivery arm type sewing machine capable of preventing a head from leaking oil while simplifying the structure of the outer wall of the head to reduce the cost. [Means for Solving the Problems] In the present invention, as described in the first item of the patent application, in order to facilitate the understanding of the contents of the present invention, the description will be made with reference to the drawings indicated in the first to the ninth drawings. The arm type sewing machine includes: a base 2 that is erected horizontally from a base end of the cylinder tube 1; a head 3 that is connected to the base 2; and an upper shaft 4 that is rotatably supported on the base 2; The sliding of the needle bar 10 of the head 3 -6- 201012998 is synchronized to form a needle winder 14 that moves up and down; the needle plate 13 of the cylinder 1 is disposed, and the presser foot 16 of the fixed blade 30 is attached; The yarn splitter 24 that moves left and right above the leg 16 and the movable blade 27 that moves forward and backward toward the fixed blade 30 of the presser foot 16 are characterized in that they are provided to support the first hub 2b formed on the base 2 at a predetermined interval And the second hub 2c is coupled to the swing shaft 6 that swings around the axis of the rotation of the upper shaft 4; the pressing shaft 15 of the presser foot 16 is fixed to the lower end; and the push shaft 15 is disposed on the concentric φ to be coupled to the yarn splitter 24 The guide shaft 21a for the yarn splitter; and the movement of the pressing shaft 15 disposed on the concentric core to be coupled to the movable blade 27 The blade guide shaft 21b is connected to the yarn splitter guide shaft 21a in the head portion 3, and the yarn splitter link 28a that swings around the yarn guide shaft 21a around the pressing shaft 15 by the rotation of the upper shaft 4 The head 3 has: a side wall formed by the front cover 3a, the rear cover 3c, and the horizontal cover 3d; and a lower wall 3b connected to the lower end edge of the side wall, and a guide shaft 21a for the yarn splitter and a guide shaft 21b for the movable blade And the pressing shaft 15 is a pressing shaft 15' which is formed in a cylindrical shape by the guide shaft 21a for the yarn splitter. The movable shaft guide shaft 21b is formed in a cylindrical shape which is larger than the diameter of the yarn guide shaft 21a. The first axial hole 3bb' penetrating through the lower wall 3b is inserted and covered by the side wall, and one end of the swing shaft 6 protrudes from the first hub 2b toward the rear cover 3c. The arm 6b fixed to the projecting end portion is coupled to the end of the movable blade link 28b, and the action piece 21b2 fixed to the upper end of the movable blade guide shaft 21b is protruded toward the rear cover 3c so that the projecting end portion is coupled to the movable blade. The other end of the connecting rod 28b, the movable blade connecting rod 28b is disposed in the first hub 2b and Between the lid. 3C, the other end of the swing shaft 6 is protruded from an outer wall 2c stand 2010129982 transmitted through the second hub, the protruding end portion is fixed thread winder 14. The delivery arm type sewing machine according to the first aspect of the invention may be configured to pass the base end of the shaft portion 17a of the push-up handle 17 that supports the shaft in the head portion 3 as shown in the second aspect of the patent application. The second circular hole 3cl penetrating through the rear cover 3c protrudes outward, and the arm 31 fixed to the protruding end portion is coupled to the upper push handle operation link 19. [Effect of the Invention] According to the present invention, the guide shaft for the yarn splitter, the guide shaft for the movable blade, and the pressing shaft are formed in a three-axis structure, and the movable blade link connected to the upper end of the movable blade guide shaft is disposed in the first The relationship between the hub and the back cover can thus simplify the head side wall while forming a tight seal with low achievement. Further, the 'needle winder is a protruding end fixed to the swing shaft 6 which protrudes from the outer wall of the base through the second hub, and the side wall of the head does not need to form a partial opening as shown in the prior art, so that it can be formed as Airtight (closed). In addition, since the side wall of the head is simplified to form the airtightness, it is possible to prevent the needle thread on the cylinder or the needle thread in the vicinity of the needle winder from being oil-stained. [Embodiment] BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a perspective view showing the appearance of a delivery arm type sewing machine in accordance with an embodiment of the present invention. Fig. 2 is a cross-sectional view showing the head of the delivery arm type sewing machine. Fig. 3 is a rear view showing the assembled state of the push shaft, the guide shaft for the yarn splitter, the guide shaft for the movable blade, the yarn splitter, and the movable blade in -8-201012998. Fig. 4 is a cross-sectional view taken along line A-A of Fig. 3. Fig. 5 is an exploded perspective view of the guide shaft for the yarn splitter, the guide shaft for the movable blade, and the movable blade. Figure 6 is an exploded perspective view of the push shaft, the yarn splitter and the presser foot. Figure 7 is an exploded perspective view of the push shaft, the presser foot and the pusher. Fig. 8 is an exploded perspective view of the needle bar, the link member for the needle bar, the swing shaft, the hammer lever lever, and the lever. Fig. 9 is a partial cross-sectional view showing a lower sealed state of the push shaft, the yarn guide guide shaft, and the guide shaft for the movable φ blade. As shown in FIG. 1 and FIG. 2, the cylinder tube 1 is a delivery arm type that is formed to extend in the cloth conveyance direction X, and a base 2 is erected on the base end side of the cylinder barrel 1, and the base 2 is configured as The horizontal direction extends in a direction crossing the direction in which the cylinder 1 extends. The front end of the base 2 is connected to a head portion 3 which projects above the front end side of the cylinder barrel 1. The head portion 3 is provided with a side wall formed by a front cover 3a, a rear cover 3c, and a lateral cover 3d. The rear cover 3c is a large cymbal formed along the front end of the base 2, and its end is connected to the head 3. The front cover 3a is disposed to face the rear cover 3c, and the end of the Φ is connected to the head 3. The horizontal cover 3d is an edge portion that is disposed to contact the front cover 3a and the rear cover 3c, and the joint portion of the front cover 3a and the horizontal cover 3d is reinforced by the support 3e of the head 3. In addition, the lower end edge of the side wall is connected with a lower wall 3b, and the upper end edge of the side wall is connected with an upper wall. As shown in Fig. 2, an upper shaft 4 formed along the extending direction of the base 2 is disposed in the base 2, and one end of the upper shaft 4 is protruded toward the outer side of the base 2. There is a pulley 5 for driving the belt. Next, the swing shaft 6 is horizontally disposed in the head portion 3, and the upper shaft 4 and the swing shaft 6 are formed in parallel. Further, the 'swing shaft 6 is supported by a shaft sleeve 6e formed on the shaft -9-201012998 sleeve 6f of the first hub 2b of the machine base 2 and the second hub 2c, and the swing shaft 6 is fixed as shown in Fig. 8. The bell hammer lever puts 7. One end of the hammer lever lever 7 is connected to the rod 9 connected to the eccentric portion 8 provided on the upper shaft 4, and the other end is coupled to the needle bar link member 11 attached to the needle bar 10 (see Fig. 8). The swing shaft 6 is coupled to the upper shaft 4 to form a swing, and the swing is transmitted to the hammer lever lever 7. The needle bar link member 11 moves the needle bar 10 up and down. In addition, in Fig. 8, 12 is a needle, and 13 is a needle plate. As shown in Figs. 1 and 2, the head portion 3 is provided with a needle thread winder 14 that moves up and down about the swing shaft 6 in conjunction with the swing shaft 6 . In this case, the one end portion 6a of the swing shaft 6 protrudes outward from the front side outer wall 2a of the base 2, and the needle end winder 14 is fixed to the projecting end portion 6a. Further, the ring-shaped seal member 3aa is disposed so as to be covered by the boss 6e, so that it is possible to more reliably prevent oil from leaking from the end of the boss 6e of the second hub 2c. As described above, the needle thread winder 14 is fixed to the protruding end portion 6a of the swing shaft 6 that protrudes from the outer wall 2a of the base 2, so that the front side front cover 3a of the head portion 3 can be eliminated as shown in Figs. 10 and 11. The front cover 41a of the conventional example head portion 41 is formed with an opening 42 for protruding the needle threader 14, so that the front cover 3a of the head 3 can be formed to be airtight. In the second to third and sixth figures, the pressing shaft 15 is vertically disposed in the head portion 3, and the lower end portion 15a of the pressing shaft 15 protrudes from the first circular hole 3bb penetrating the lower wall 3b of the head. The protruding lower end portion 15a is provided with a presser foot 16. The presser foot 16 is attached with a stationary blade 30. As shown in Fig. 2 and Fig. 7, the head portion 3 is supported by an upper pusher 17 which is rotatable about the shaft portion 17a and has a shaft portion 17a. The base end of the shaft portion 17a is through -10. 201012998. The ring-shaped seal 3cc disposed in the second circular hole 3cl of the cover 3c protrudes outward. The use of the ring-shaped seal 3cc can more reliably prevent oil from leaking out of the second circular hole 3c 1 . With the rotation of the push-up lever 17, the front end 17b engages the collar 18 fixed to the pressing shaft 15 from below, and when the engagement is made, the pressing shaft 15 is lifted to move the presser foot 16 upward from the cylinder tube 1. The arm 31 is fixed to the protruding end portion (base end) of the shaft portion 17a of the push-up handle 17 shown in Fig. 7, and the upper push lever operation link φ 19 is coupled to the arm 31. As shown in Fig. 3 to Fig. 5, the guide shaft 21 which is fitted to the concentric portion of the pressing shaft 15 is divided into a yarn guide guide shaft 21a and a movable blade guide shaft 21b, and the yarn splitter guide shaft 21a is moved. The blade guide shaft 21b and the pressing shaft 15 are formed in a triple shaft structure. The yarn guide guide shaft 21a has an operation piece 21aa at the lower end (see Fig. 5), and the operation piece 21aa is a recessed portion 23aa that is inserted into the transmission member 23a rotatably supported by the pressing shaft 15 (see Figs. 4 and 6). Figure). The transmission member 23a is coupled to the yarn splitter support shaft 22 through the yarn feeder coupling member 23b as shown in Fig. 6, and the yarn feeder support shaft #22 is inserted into the support hole 16a penetrating the base of the presser foot 16. A yarn splitter 24 is attached to the lower end of the yarn splitter support shaft 22. The movable blade guide shaft 21b has a fixing piece 21b1 at the lower end as shown in Fig. 5, and the movable blade coupling member 26. is attached to the fixing piece 21b1. The movable blade coupling member 26 supports the movable blade support shaft 25 to be slidable through a pair of upper and lower support holes 26a, 26a, and the locking piece 25a attached to the movable blade support shaft 25 is provided at the support holes 26a, 26a. The spring 25b is pushed. A movable blade 27 is attached to the lower end of the movable blade support shaft 25. The left and right movement of the splitter 24 and the movable blade 27 is performed near the presser foot 16 when the sewing machine -11 - 201012998 is driven. The movable blade 27 is moved forward and backward toward the fixed blade 30 of the presser foot 16. Further, the link 28' of the yarn splitter guide shaft 21a and the movable blade guide shaft 21b swinging around the pressing shaft 15 in conjunction with the rotation of the upper shaft 4 is provided with a yarn feeder link 28a and a movable blade 28a. Next, as shown in Figs. 2 and 5, the upper end of the yarn guide guide shaft 31a is fixed to the movable piece 21a1 by a screw 21a2, and the ball joint 21a3 is attached to the tip end of the action piece 21a1. In the head portion 3, the ball joint φ head 21a3 of the yarn feeder guide shaft 21a and the yarn splitter eccentric portion (not shown) of the upper shaft 4 are coupled by the yarn splitter link 28a, and the yarn splitter guide shaft 21a is connected. The rotation of the upper shaft 4 is formed to swing about the pressing shaft 15. On the other hand, as shown in Fig. 2, Fig. 3, and Fig. 5, the movable blade 21b2 is fixed to the upper end of the movable blade guide shaft 21b by the screw 21b3, and the ball joint 21b4 is attached to the tip end of the action piece 21b2. As shown in Figs. 2 and 8, the other end portion of the swing shaft 6 projects from the first hub 2b toward the rear cover 3c, and the ball joint 6c is attached to the arm 6b of the swing shaft 6 to which the projecting end portion is fixed. The ball joint 21b of the ball joint 6c and the action piece 21b2 protruding from the upper end of the movable blade guide shaft 21b toward the rear cover 3c is coupled by the movable blade link 28b, and the movable blade guide shaft 21b is moved along with the swing shaft. The swinging of 6 forms a swing about the pressing shaft 15. Further, the rear cover 3c is provided with an upper cover that connects the upper wall and a lower cover that connects the lower wall 3b, and the cover is located above and below the arm 6b side connecting portion that sandwiches the movable blade link 28b. Therefore, the movable blade link 8 8b is substantially disposed between the first hub 2b and the rear cover 3c in the head 3. In the head portion 3 as described above, the other end portion of the swing shaft 6 (the -12-201012998 ball joint 6c of the arm 6b) is coupled to the other end portion of the movable blade link 28b (the ball joint 21 b4 of the action piece 21 b2). At the same time, the other end portion of the yarn splitter link 28a is an eccentric portion (not shown) of the yarn splitter that is coupled to the upper shaft 4. Therefore, as shown in Fig. 2, the back side back cover 3c of the head portion 3 is not It is necessary to have the back side back cover 4 1 b of the previous example head portion 4 1 shown in Fig. 9 and Fig. 1 or the side surface side of the head portion 5 1 shown in Fig. 1 and Fig. 2 The cover 41b forms the opening 47, so that the construction of the back cover 3c of the head 3 can be simplified to achieve closure. As shown in Fig. 3 and Fig. 4, the yarn guide guide shaft 21a, the movable blade guide shaft 21b, and the pressing shaft 15 are formed so that the yarn guide guide shaft 21a is formed in a tubular shape and fitted to the pressing shaft 15, and the movable blade The guide shaft 21b is formed in a three-axis structure in which a cylindrical shape larger than the yarn guide guide shaft 21a is fitted to the periphery of the yarn guide guide shaft 21a. Then, the yarn guide guide shaft 21a, the movable blade guide shaft 21b, and the pressing shaft 15 are inserted into the circular hole 3bb penetrating the lower wall 3b, and the movable blade guide shaft 21b is transmitted through the circular hole 3bb. Supported in the circular hole 3bb. As described above, the yarn guide guide shaft 21a, the movable blade guide shaft 21b, and the pressing shaft 15 are configured in a three-axis structure in the head portion 3, and the side surface side cross cover 3d of the head portion 3 can be eliminated as shown in Fig. 2 The cross cover 51a of the head portion 51 shown in Figs. 12 and 13 forms the opening 52, so that the structure of the cross cover 3d of the head 3 can be simplified to a closed state, as shown in Fig. 9, A concave portion is formed around the hole of the pressing shaft 15 at the lower end of the guide shaft 21a for the yarn feeder, and a ring-shaped oil seal ring 21c is embedded in the concave portion. A periphery of the hole for the guide shaft 21a at the lower end of the movable shaft guide shaft 21b and a periphery of the hole for the guide shaft 21b at the lower end of the bearing 29 are also formed with a recessed portion in which the ring-shaped oil seal rings 21d and 21e are embedded. The arrangement of the coiled oil seal rings 21c, 21d, and 21e can more reliably prevent oil from leaking from the above-described triple shaft structure. As described above, the yarn guide guide shaft 21a, the movable blade guide shaft 21b, and the * pressing shaft 15 are configured as a triple shaft structure, and the movable blade link 28b coupled to the upper end of the movable blade guide shaft 21b is disposed in the first hub. Between 2b and the rear cover 3c, the side wall of the head 3 can be simplified and the airtightness can be achieved at low cost. Further, the needle thread winder 14 is fixed to the protruding end portion 6a of the swing shaft 6 which protrudes from the outer wall of the housing 2 through the second hub 2c, so the side wall of the head portion 3 (the front cover 3a, the rear cover 3c, and the horizontal side) The cover 3d) does not need to form a partial opening as in the prior art, and the simplification can be simplified, so that it is possible to surely prevent the needle thread on the sewing machine 1 or the needle thread in the vicinity of the needle winder 14 from being oil-stained.
【圖式簡單說明】 G 第1圖爲本發明一實施例的送出臂式縫紉機外觀透視 圖。 第2圖爲第1圖之送出臂式縫紉機的頭部橫剖面圖。 第3圖爲表示推壓軸、分紗器用導軸、活動刀片用導 軸、分紗器及活動刀片的組裝狀態背面圖。 第4圖爲第3圖的A-A線剖面圖。 第5圖爲分紗器用導軸、活動刀片用導軸及活動刀片 的分解透圖。 14 - 201012998 第6圖爲推壓軸、分紗器及壓腳的分解透視圖。 第7圖爲推壓軸、壓腳及上推把的分解透視圖。 第8圖爲針棒、針棒用連桿構件、擺動軸、鐘錘槓桿 把及桿的分解透圖。 第9圖爲表示推壓軸、分紗器用導軸及活動刀片用導 軸的下部密封狀態局部剖面圖。 第10圖爲先前技術例的送出臂式縫紉機的縫紉機頭 φ 部橫剖面圖。 第11圖爲第10圖中從箭頭符號8方向看的縫紉機頭 部的正面圖。 第12圖爲另一先前技術例的送出臂式縫紅1機的縫糸刃 機頭部橫剖面圖。 第13圖爲表示配置在第12圖縫紹機頭部的推壓構件 和其周邊構成的槪略縱剖面圖。 # 【主要元件符號說明】 1 :缸筒 2 :機座 2b :第1輪轂 2c :第2輪轂 3 :頭部 3a :前蓋 3b :下壁 3bb :第1圓孔 -15- 201012998 3 c :後蓋 3 c 1 :第2圓孔 3 d :橫蓋 4 :上軸 6 :擺動軸 6b :臂 1 0 :針棒 1 3 :針板 _ 1 4 :針線絡紗器 15 :推壓軸 16 :壓腳 17 :上推把 17a :軸部 19:上推把操作用連桿 2 1 a :分紗用導軸 21b:活動刀片用導軸 © 21b2 :動作片 2 4 :分紗器 27 :活動刀片 2 8 a ::分紗器用連桿 28b :活動刀片用連桿 30 :固定刀片 31 :臂 -16-BRIEF DESCRIPTION OF THE DRAWINGS G Fig. 1 is a perspective view showing the appearance of a delivery arm type sewing machine according to an embodiment of the present invention. Fig. 2 is a cross-sectional view showing the head of the delivery arm type sewing machine of Fig. 1. Fig. 3 is a rear view showing the assembled state of the push shaft, the guide shaft for the yarn splitter, the guide shaft for the movable blade, the yarn splitter, and the movable blade. Fig. 4 is a cross-sectional view taken along line A-A of Fig. 3. Fig. 5 is an exploded perspective view of the guide shaft for the yarn splitter, the guide shaft for the movable blade, and the movable blade. 14 - 201012998 Figure 6 is an exploded perspective view of the push shaft, the yarn splitter and the presser foot. Figure 7 is an exploded perspective view of the push shaft, the presser foot and the pusher. Fig. 8 is an exploded perspective view of the needle bar, the link member for the needle bar, the swing shaft, the bell lever lever, and the rod. Fig. 9 is a partial cross-sectional view showing the lower sealed state of the push shaft, the guide shaft for the yarn splitter, and the guide shaft for the movable blade. Fig. 10 is a cross-sectional view showing the φ portion of the sewing machine head of the delivery arm type sewing machine of the prior art. Fig. 11 is a front elevational view of the head of the sewing machine as seen from the direction of arrow 8 in Fig. 10. Fig. 12 is a cross-sectional view showing the head of the slitting blade of the delivery arm type sewing machine 1 of another prior art example. Figure 13 is a schematic longitudinal cross-sectional view showing the pressing member disposed at the head of the sewing machine of Fig. 12 and its periphery. # [Main component symbol description] 1 : Cylinder 2 : Base 2b : 1st hub 2c : 2nd hub 3 : Head 3a : Front cover 3b : Lower wall 3bb : 1st round hole -15- 201012998 3 c : Rear cover 3 c 1 : 2nd circular hole 3 d : Horizontal cover 4 : Upper shaft 6 : Swing shaft 6 b : Arm 1 0 : Needle bar 1 3 : Needle plate _ 1 4 : Needle winder 15 : Pushing shaft 16 : Presser foot 17 : Push-up lever 17a : Shaft portion 19 : Push-up lever 2 2 a : Guide shaft for split yarn 21b: Guide shaft for movable blade © 21b2 : Action sheet 2 4 : Splitter 27 : Active Blade 2 8 a :: Splitter link 28b: Link for movable blade 30: Fixed blade 31: Arm-16-