200401063 (1) 玖、發明說明 【發明所屬之技術領域】 本發明是有關具有將線自動地穿過針孔之穿線裝置之 縫紉機。 【先前技術】 做裁縫時，麻煩的作業是在針孔穿線一事。因此，先 前有人提出具有裝設有空之針的針夾之針軸，以及具有將 線穿過針孔之穿線裝置之縫紉機（特開平4 - 643 8 6號公 報）。上述公報之穿線裝置具有設成可升降之操作桿部， 隨著操作桿部之操作在躲避位置與穿線位置之間上下運動 之支撐體，隨著支撐體之轉動***針孔之鉤部，以及導片 ，用於補充線中握持於使用者之指尖之握持部分與掛線部 之間之中途的線部分，而在貫穿於鉤部之準備狀態中保持 線。利用此裝置，可以將線自動地穿過針孔，所以有使裁 縫作業輕便化之利點。 【發明內容】 〔發明擬解決之課題〕 然而利用上述之特開平4 - 64 3 8 6號公報之技術’在 穿線時，必須同進行操作桿部之操作與利用指尖握持線= 操作兩者。因此，穿線時，使用者必須利用雙手同時操作 ，難謂操作性良好之技術。 本發明爲鑒及上述實情而完成的，其課題在提供一種 -4 - (2) (2) 200401063 穿線時使用者之雙手不必同時操作，且具有操作性良好之 穿線裝置之縫紉機。 〔解決課題之手段〕 本發明之縫紉機具有裝設有針孔之針的針夾之針軸， 保持針軸之針軸臂，以及將線貫穿針孔之穿線裝置，其特 徵爲：上述穿線裝置具有針軸掛線部，直接或間接地設置 於針軸以吊掛位於針軸側之線；線握持部，用於握持線中 離開針軸之位置的線部分並設成可以解除握持；導線體， 設成可以轉動並吊掛針軸掛線部，同時隨著轉動將握持於 線握持部之線沿著水平方向保持；穿線鉤體，設成可以轉 動，而具有可以***針孔之鉤部，隨著轉動將鉤部***針 孔成爲可以與線套合之套合位置，隨著反方向之轉動使套 合線的狀態之鉤部脫離針孔俾將線穿過針孔；凸輪部，在 穿線鉤體之鉤部於正方向轉動之初期階段以及轉動於反方 向之時，操作成可解除線握持部之線部分之握持；以及操 作桿部，使導線體之轉動’穿線鉤體之轉動，穿線鉤體之 逆向之轉動’以及凸輪部之動作連動。 使用者若操作操作桿部’導線體之轉動’穿線鉤體之 轉動，穿線鉤體之逆向轉動與凸輪之動作即自動地進行， 線即自動地穿過針孔。尤其是’由於凸輪之操作’線握持 部之握持作用被解除’線被恰當地穿在鉤部。 【實施方式】 (3) (3)200401063 〔發明之實施形態〕 利用本發明之縫紉機，至少可以採用下述形態之一種 。可以採用設有穿線桿，設置於針軸臂而保持著穿線夠體 ，以及齒輪機構，將導線體轉動成穿線鉤體之相反方向之 形態。此時，可以採用隨著操作桿部之操作’使穿線桿在 軸心周圍轉動，俾使穿線鉤體與導線體互相逆向轉動’藉 將穿線鉤體之鉤部***針孔之形態。可以使穿線狗體之轉 動與導線體之轉動同步。可以採用具備將線保持沿著水平 方向之導線體之轉動速度比穿線夠體之轉動速度快速之 增速機構之形態。此時’因爲可以確保導線體之轉動速度 ，所以可以使在轉動前之起始位置之導線體盡量遠離針的 位置，有助於擴充針附近的空間。可以採用設有解除線握 持部之握持之凸輪被動件之形態。此時，凸輪部具有凸輪 被動件移動同時隨著移動進行線握持部之握持解除之凸輪 面。因此，隨著操作桿部之操作，可以使凸輪被動件沿著 凸輪面操作以解除線握持部之握持作用，而解除線握持部 之線握持。 可以採用設有一操作操作桿部即與操作連動而將穿線 鉤體之鉤部轉動於穿線方向之轉動凸輪部之形態。此時， 可以具有操作桿部之操作一被解除，使轉動凸輪部逆向轉 動俾使穿線鉤體之鉤部逆向轉動而返回起始位置之彈簧。 線握持部可以具有夾持線的一組夾持構件以及將夾持構件 施壓於夾持方向之彈簧等之施壓構件之形態。此時，藉由 凸輪部之凸輪作用，可以解除夾持構件之夾持，進而進行 -6- (4) (4)200401063 握持解除作用。 針軸掛線部之掛線高度與線握持部之穿線高度以大致 相同爲理想。這種情形對於要將鉤住鉤部之前之狀態的線 保持沿著水平移動是有益的。 〔實施例〕 以下麥照圖式具體說明本發明之貫施例。圖1表示穿 線裝置之起始位置。圖2表示穿線裝置之動作進行中途。 圖j表不芽線裝置之動作進彳了末期。圖4表示穿線裝置之 重要部分之構造。圖5表不穿線鉤體1 3之平面形態。圖 6表示用於解除線握持部2 5之握持之凸輪部2 1之斜視圖 。圖7表示凸輪部2 1之圓弧槽部附近。圖8表示凸輪部 2 1之直線槽部附近。圖9表示圖1所示之狀態的平面圖 。圖10表示圖2所示狀態之平面圖。圖1 1表示圖3所示 狀態之平面圖。圖12表示由圖11之箭號X12之方向所 見狀態之圖。圖1 3表示針7之針孔7A被***鉤部20之 狀態。 在本實施例中，如圖1所示，針軸臂1是被裝設成可 對家庭用縫紉機之機框（未圖示）搖動。針軸臂1具有部 位1 a，1 b，1 c，1 d。藉由配置於縫紉機之機框內成可旋 轉之上軸50所驅動之曲柄機構60，透過針軸架3 ’縱長 的針軸2被設成可以上下來回運動。在針軸2之高度中央 區域裝設有具有停止部4A之停止器4。停止器4之下方 配置有針軸架3。針軸2之下端部分設有具有螺絲5 c之 -7- (5) (5)200401063200401063 (1) 发明. Description of the invention [Technical field to which the invention belongs] The present invention relates to a sewing machine having a threading device for automatically passing a thread through a pinhole. [Prior art] When doing tailoring, the troublesome task is threading in the pinhole. Therefore, a sewing machine with a needle holder equipped with an empty needle and a threading device for passing a thread through the needle hole have been proposed previously (Japanese Patent Laid-Open Publication No. 4-643 86). The threading device of the above publication has a support lever portion provided to be liftable, a support body that moves up and down between the avoiding position and the threading position as the operation lever portion is operated, a hook portion inserted into the pinhole as the support body rotates, and The guide piece is used to supplement the thread portion held in the middle between the grip portion of the user's fingertip and the thread hanging portion, and to maintain the thread in the prepared state penetrating the hook portion. With this device, the thread can be automatically passed through the pinhole, so it has the advantage of making the tailoring work easier. [Summary of the Invention] [Problems to be Solved by the Invention] However, using the technology of JP 4-64 3 8 6 described above, when threading, it is necessary to perform the operation of the operating lever portion and hold the line with the fingertips = operation By. Therefore, when threading, users must use both hands to operate at the same time. The present invention has been made in consideration of the above-mentioned facts. The subject of the present invention is to provide a sewing machine that does not need to be operated by both hands of a user when threading, and has a threading device with good operability. [Means for Solving the Problems] The sewing machine of the present invention includes a needle shaft of a needle holder equipped with a needle hole needle, a needle shaft arm holding the needle shaft, and a threading device for passing a thread through the needle hole. It has a needle shaft hanging part, which is directly or indirectly provided on the needle shaft to hang the thread on the side of the needle shaft; the thread holding part is used to hold the part of the thread away from the needle shaft and is set to release the grip The wire body is set to be able to rotate and hang the thread hanging portion of the needle shaft, and at the same time, the thread held by the thread holding portion is held along the horizontal direction with the rotation; the threading hook body is set to be able to rotate and has Insert the hook part of the pinhole, and insert the hook part into the pinhole as the fit position with the thread as you rotate it. With the rotation in the opposite direction, the hook part of the threaded state is disengaged from the pinhole. Pass the thread through A pinhole; a cam portion that is operated to release the grip of the thread portion of the thread holding portion during the initial stage of the hook portion of the threading hook body rotating in the positive direction and the reverse direction; and a lever portion to enable the wire The rotation of the body 'threading hook The reverse rotation of the hook body 'and the movement of the cam portion are interlocked. If the user operates the rotation of the threading hook body of the operation lever portion "the rotation of the wire body", the reverse rotation of the threading hook body and the movement of the cam are automatically performed, and the thread automatically passes through the pinhole. In particular, "the grip of the thread holding portion was released due to the operation of the cam", the thread was properly threaded on the hook portion. [Embodiment] (3) (3) 200401063 [Embodiment of the invention] With the sewing machine of the present invention, at least one of the following forms can be adopted. It is possible to adopt a configuration in which a threading rod is provided on the needle shaft arm to hold the threading body, and a gear mechanism is used to rotate the wire body to the opposite direction of the threading hook body. At this time, it is possible to adopt a form that the threading rod is rotated around the shaft center and the threading hook body and the wire body are rotated in opposite directions with the operation of the operation lever portion, thereby inserting the hook portion of the threading hook body into the pinhole. The rotation of the threading dog body can be synchronized with the rotation of the wire body. It is possible to adopt a form having a speed increasing mechanism that keeps the wire body in the horizontal direction at a faster rotation speed than the threading body. At this time, because the rotation speed of the wire body can be ensured, the wire body at the starting position before the rotation can be as far away from the needle as possible, which helps to expand the space near the needle. It is possible to adopt the form of a cam driven member provided with a grip for releasing the wire grip. At this time, the cam portion has a cam surface on which the cam driven member moves and the grip of the wire grip portion is released as the cam portion moves. Therefore, with the operation of the operating lever portion, the cam passive member can be operated along the cam surface to release the gripping effect of the wire gripping portion and release the wire gripping of the wire gripping portion. It is possible to adopt a form in which a rotating cam portion is provided which has an operation lever portion that is linked to the operation to rotate the hook portion of the threading hook body in the threading direction. At this time, there may be a spring that once the operation of the operating lever portion is released, the turning cam portion is reversely rotated, and the hook portion of the threading hook body is reversely rotated to return to the starting position. The thread holding portion may have a form of a set of holding members that hold the line, and a pressing member such as a spring that presses the holding member in the holding direction. At this time, by the cam action of the cam portion, the gripping of the gripping member can be released, and further -6- (4) (4) 200401063 can be released. It is desirable that the thread hanging height of the needle thread hanging portion and the thread holding height of the thread holding portion are approximately the same. This situation is useful for keeping the line that is in the state before the hook is moved horizontally. [Embodiments] The following embodiments of the present invention will be specifically described in accordance with the drawings. Figure 1 shows the starting position of the threading device. Fig. 2 shows the operation of the threading device halfway. Figure j shows that the operation of the bud line device has entered its final stage. Fig. 4 shows the structure of an important part of the threading device. FIG. 5 shows the planar form of the threaded hook body 13. FIG. 6 shows a perspective view of a cam portion 21 for releasing the grip of the wire grip portion 25. FIG. 7 shows the vicinity of the arc groove portion of the cam portion 21. Fig. 8 shows the vicinity of the linear groove portion of the cam portion 21. Fig. 9 is a plan view showing the state shown in Fig. 1. Fig. 10 is a plan view showing the state shown in Fig. 2. Fig. 11 is a plan view showing the state shown in Fig. 3. Fig. 12 is a diagram showing a state seen from the direction of arrow X12 of Fig. 11. FIG. 13 shows a state in which the pinhole 7A of the needle 7 is inserted into the hook portion 20. In this embodiment, as shown in Fig. 1, the needle shaft arm 1 is provided so as to be swingable to a frame (not shown) of a household sewing machine. The needle shaft arm 1 has positions 1 a, 1 b, 1 c, 1 d. By a crank mechanism 60 arranged in a frame of the sewing machine and driven by a rotatable upper shaft 50, the needle shaft 2 which is elongated through the needle shaft holder 3 'is provided to move up and down. A stopper 4 having a stopper 4A is provided in the center area of the height of the needle shaft 2. A needle shaft holder 3 is arranged below the stopper 4. The lower end of the needle shaft 2 is provided with a screw 5 c -7- (5) (5) 200401063
It火5。針夾5上面設有用於穿掛上線之線24之針軸穿 線部6。針夾5上固設有針7成可裝卸狀態。 針軸臂1之部位1 a，1 c裝設有平行於針軸2之縱軸 式之穿線桿9。穿線桿9被設成可對針軸臂1上下移動。 另外’穿線軸9被設於針軸臂1成可以在其軸心P 1周圍 轉動。穿線體8具有部位8 f，8 h。將部位8 f，8 h套合於 穿線軸9 ’穿線體8才被安裝成可以對穿線桿9升降。在 穿線體8之上面形成有沿著螺旋狀成有槽凸輪狀之轉動凸 輪部8A。轉動凸輪部8A具有下端8A1及上端8A2。穿線 體8在其下方具有可以使用者的指尖按壓操作之操作桿部 8 B。 在穿線桿9之軸長方向之中間區域固設有轉動操作件 之轉動銷1 0與穿線桿9成正交。轉動銷1 0之長度設定成 轉動銷1 0之一端1 Oh可頂接於停止器4之停止部4A，而 轉動銷1 0之另一端1 0m可頂接於穿線體8之螺旋狀之轉 動凸輪部8 A。 在安裝有連接穿線體8之底部8 X與針軸臂1之部位 1 d之座部1 X之線圈狀之穿線彈簧1 1。在穿線前之起始 位置，穿線體8被穿線彈簧1 1頂向上方，即箭號Y 1之 方向。在穿線桿9之轉動銷1 0與穿線體8之部位8f之間 設有線圈狀之穿線桿彈簧1 2。穿線桿彈簧1 2對穿線體8 將穿線桿9向下方，即箭號Y2之方向加壓下按。因爲穿 線桿彈簧1 2之彈簧力比穿線彈簧1 1之彈簧力強，因此在 圖1所示之起始位置，轉動銷1 〇位於有槽凸輪部8 A之 (6) (6)200401063 下端8 A 1。當使用者以指尖將穿線體8之操作桿部8B按 下下方’即箭號Y1方向時，起始動作是穿線體8與穿線 桿一體移動，如圖2所示，轉動銷1 〇即頂接於停止器4 之停止部4 A。如圖2所示，在頂接的時間點，穿線桿9 停止再下降。由上述頂接之時間點，藉由穿線體8之操作 桿部8 B之進一步之按壓操作，而穿線體8再向下方，即 箭號Y 2之方向移動時，穿線體8之部位8 f會下降，因此 穿線桿彈簧1 2開始被壓縮，且轉動銷1 〇沿著穿線體8之 轉動凸輪部8 A移動。因此，轉動銷1 〇在軸心P 1之周圍 轉動，穿線桿9向順時鐘方向即箭號K1之方向（參照圖 9 )轉動。當使用者鬆弛施加於穿線體8之操作桿部8 B的 力量時，由於穿線桿彈簧1 2之彈性復歸作用與穿線體8 之轉動凸輪部8 A之凸輪作用，穿線桿9以軸心P 1爲中 心轉動於反時鐘方向，即箭號K2之方向（參照圖9 )， 同時，穿線體8與穿線桿9成爲一體藉由穿線彈簧之 彈簧力上外至箭號Y1之方向，而穿線體8與穿線桿9被 拉回到圖1所示之起始位置。 如圖4所示，穿線桿9之下端部固設有穿線鉤體1 3 。如圖9所示，穿線桿9與穿線鉤體1 3以軸心P1爲中心 一體旋轉於箭號ΚΙ，K2之方向。在構成穿線鉤體13之 —組板部1 3 X鉚接夾持固定著鉤部2 0。板部1 3 X之前端 側形成有鉤導2 7。如圖12所示，鉤部2 0之厚度如可以 ***針7之針孔7A之薄度，而具有繫止線24之繫止孔 2 0 m與前端傾斜面2 0 η。 -9- (7) (7)200401063 如圖5所示’穿線鉤體1 3具有固定於穿線桿9之下 端部而與穿線桿9 —體旋轉之基部Π D，以及由基部1 3 D 橫向延伸之臂部13A。臂部13A可以藉由轉動件13t對基 部1 3 D位移於箭號W4之方向。在臂部1 3 A形成有沿著臂 部1 3 A之長孔部1 3 B。在臂部1 3 A設有可以滑動自如之 單向操作式’即單向式（one - way )的凸輪部2 1。該單 向式凸輪部2 1具有後面敘述之具有凸輪被動件之功能的 突部1 7 A可以移動套合之槽形凸輪面2 2。如圖6所示， 凸輪面22具有延伸成圓弧狀之圓弧槽部22A，延伸成直 線狀之直線槽部22B，用於防止凸部1 7A之逆轉之台階部 2 2 C，以及切換圓弧槽部2 2 A與直線槽部2 2 B之變換位置 22E。圓弧槽部22A之剖面形狀如圖7所示之狀態。如圖 7所示，圓弧槽部22A具有高平面22A1，低平面22A3以 及形成於兩平面之間的傾斜面22 A2。直線槽部22B之剖 面形狀如圖8所示。如圖所示，直線槽部2 2 B具有與圓弧 槽部22A之低平面22A3同一平面之低平面22B3，比圓 弧槽部22A之高平面22A1稍低之高平面B1以及形成於 兩平面間之傾斜面2 2 B 2。直線槽部2 2 B之高平面2 2 B 1與 圓弧槽部22A之高平面22A1之間之階差成爲防止凸部 1 7A之逆轉的台階部22C。 在圖9中之穿線桿9之下端部，將導線體1 4安裝成 可以在穿線桿9之軸心P1之周圍空轉於箭號μ 1、Μ 2之 方向。因此’導線體14可以對穿線桿9在軸心Ρ1之周圍 相對逆向轉動。導線體I 4具有引導線2 4之引導部1 4 Β。 -10- (8) 200401063 導線體1 4上設有外齒狀之齒輪部1 4 A成一體。齒輪 1 4 A可以在穿線桿9之軸心P 1周圍轉動。 在圖4之穿線體8之部位8 s，81裝設有可芽線丰I 之平行位置轉動之輔助穿線桿1 5。輔助穿線桿1 5具有 軸式之軸心Ρ 2。輔助穿線桿1 5之下端部固設有傳動齒 1 6。傳動齒輪1 6是以軸心Ρ 2爲中心而轉動。如圖4所 ，傳動齒輪〗6具有外齒形之齒輪部1 6 W ’還具有延設 橫向之臂部]6Κ。臂部16Κ具有含有凸起16Α1之套合 16Α。傳動齒輪16之套合銷16Α被沿奢芽線夠體13之 部1 3 Α之長孔部1 3 Β***成可移位狀態。 在輔助穿線桿1 5之下端部組裝有具有水平之線握 面1 7r之線握持盤1 7。如圖4所示，線握持盤1 7可以 輔助穿線桿1 5之軸心P 2周圍轉動，並且可以沿著輔助 線桿1 5之上下方向，即箭號Y1、Y 2方向滑動。線握 盤17具有做爲齒輪被動體之向下方凸出之凸部17A。 助穿線桿1 5裝設有E環1 8。E環1 8與線握持盤1 7之 同軸上裝設線圈狀之線握持彈簧1 9與輔助穿線桿1 5。 握持彈簧1 9始終將線握持盤1 7向下方，即箭號Y2方 ，換言之，即線握持方向施壓。 凸設於線握持盤1 7之下方而具有凸輪從動件之功 之凸部1 7 A是利用線握持彈簧1 9之彈簧力施壓而頂接 凸輪部2 1之凸輪面22。亦即如圖5所示，線握持盤 之凸部1 7A是套入單向式之凸輪部2 1之圓弧槽部22 A 直線槽部22B，挑選凸面22之凹凸形狀，隨著該凹凸 部 9 縱 輪 示 至 銷 臂 持 在 穿 持 輔 間 線 向 能 於 17 或 形 -11 - (9) (9)200401063 狀，線握持盤1 7上下移動於箭號γ 1，Y2之方向。 本實施例之線握持部2 5可用於夾持線並握持者，係 由傳動齒輪1 6之臂部16Κ與線握持盤1 7所構成。亦即 ，由圖4可知，由於施壓構件線握持彈簧1 9之彈簧力將 線握持盤1 7施壓於下方，即箭號Υ2方向，所以若在傳 動齒輪1 6之臂部1 6 Κ之線握持面1 6r與線握持盤1 7之線 握持面1 7 1•之間將線2 4之線部分2 4 c沿著水平方向滑入 時，即可以臂部1 6 K之線握持面1 6 r與線握持盤1 7之線 握持面1 7 i•握持線部分2 4 c。因此，臂部]6 K與線握持盤 1 7可以扮演夾持並握持線2 4之線部分2 4 c之一組夾持構 件之功能。 茲參照圖14至圖16說明線握持部2 5之細節。如圖 1 4所示，鉤體1 3之待機時（圖1，圖9 )，在線握持盤 1 7之握持面1 7r與臂部1 6K之線握持面1 6r之間形成有 特定間隙（〇.4mm )，俾線24之線部分24c***。如此 ***之線24被凸起1 7z制止拔出。掛線時（圖1 0，圖1 1 )，如圖1 5所示，連動於凸輪面22之凸部1 7a引起線握 持盤1 7下降，將線24夾持於線握持盤1 7之握持面1 7r 與臂部16K之線握持面16r之間。而在釋放時，如圖16 所示，連動於凸輪面22之凸部17A將線握持盤17上升 比圖1 4之狀態稍高，而將線2 4由線握持盤1 7之握持面 1 7 r與臂部1 6 K之線握持面1 6 r之間之夾持釋放。 如圖9所示，傳動齒輪1 6之齒輪部1 6 W與導線體1 4 之齒輪部1 4 A嚙合而構成齒輪機構。在此，當穿線鉤體 -12- (10) (10)200401063 1 3轉動於箭號κ1之方向時，穿線鉤體1 3之臂部n A即 以軸心P 1爲中心轉動於箭號K 1 0之方向（=箭號κ丨之方 向），因此’臂部1 3 Α之長孔部1 3 Β轉動於同方向。因 此，透過套合於長孔部丨3 B之套合銷]6 A與臂部丨6 κ， 連動齒輪1 6即以軸心Ρ 2爲中心轉動於箭號R 1之方向。 於是’導線體14之齒輪部14Α即以軸心Ρ1爲中心轉動 於箭號R2之方向。亦即，導線體丨4以軸心ρ 1爲中心， 對穿線鉤體1 3之轉動方向（箭號Κ1之方向）轉動於反 方向（箭號Ml之方向）。 茲對單方式之凸輪部2 1之作用再加說明。亦即，雖 然線握持盤1 7之凸部1 7 A是沿著凸輪部2 1之凸輪面2 2 之形狀移動’但是凸部1 7 A之起始位置是位於圖5所示 之起始位置T 1。當穿線鉤體1 3開始以軸心p 1爲中心轉 動於箭號Κ 1之方向時，隨之穿線鉤體]3之臂部丨3 a也 開始以軸心P 1爲中心轉動於箭號K 1 0之方向箭號K i 之方向），而線握持盤1 7之凸部1 7 A即沿著單向式凸輪 部2 1之凸輪面2 2移動。此時，凸部1 7 A之前進被凸輪 部21之直線槽部22B與圓弧槽部22A邊界之台階部22C 所阻擋，凸部1 7 A自動地向直線槽部2 2 B之方向，即箭 號T2之方向移動。此時凸輪部2 1可以適當地沿著箭號 W4方向（參照圖5 )移位。另外，在穿線鉤體1 3轉動至 箭號Κ1之方向停止之時間點，凸部1 7A已到達凸輪面22 之切換位置22E，而穿線體8已來到下死點。然後，操作 桿部8 B之按壓操作被解除，而由於穿線桿彈簧1 2之彈簧 -13- (11) (11)200401063 反彈力穿線鉤體1 3開始反向，即向箭號κ 2之方向（參 照圖9 )轉動，隨著凸部1 7 Α也移動至凸輪面22之圓弧 槽部22A。結果是凸部1 7A登上圓弧槽部22A之傾斜面 2 2 A 2移動，經過商位面2 2 A 1而到達直線槽部2 2 B之局 位面22B 1。其結果是’具有凸輪被動件之功能的凸部 1 7 A被提升到箭號Y 1之方向’進而將具有凸部丨7 a線握 持盤1 7提升到箭號Y 1之方向而解除線握持部2 5對線24 之握持作用。 接著要就將線24穿過針7的針孔7A之情形加以說 明。首先，確認針軸2在上死點附近。然後以指尖拉住由 線軸經過各引導部之上線之線2 4引導至針軸2之針夾5 的針軸掛線部6。另外，如圖1所示，將線2 4掛在導線 體14之引導部14B上。再進一步將線24***傳動齒輪 〗6與線握持盤1 7所構成的線握持部25，藉將線24之線 部分24c裝設於如圖1 4之狀態之線握持部25。藉此在線 2 4之中針軸2側是被掛在針軸掛線部6，同時線2 4之中 由針軸2離開之線部分24c則如圖14所示，由線握持部 25及凸起1 7Z保持得自由而不脫離，藉此可以吸收圖中 未示之挑線彈簧（thread take-up spring)之作用。 如上所示，在將線2 4掛在針夾5之針軸掛線部6， 同時將由線24之中由針軸2離開之線部分24c繫止於圖 14之狀態之線握持部2 5之狀態下，在圖1中，作業者以 指尖將穿線體8之操作桿部8 B按向下方，即箭號Y2之 方向。於是線部分24c以被圖1 5之狀態之線握持部25之 -14 - (12) (12)200401063 狀態下，穿線體8頂著穿線彈簧1 1之彈簧力而下降至箭 號Y2之方向。此時，裝設於穿線體8與穿線桿9之穿線 裝置整體大致上與針軸2平行下降。 當穿線裝置整體下降某種程度時，如圖2所示，*** 穿線桿9之轉動銷10即頂接於針軸2之停止器4之停止 部4 A而阻擋轉動銷1 0之再進一步下降。但是，當使用 者以指尖繼續按下穿線體8之操作桿部8B時，被穿線體 8之部位8f按壓之穿線桿彈簧1 2彈性收縮而在穿線桿彈 簧1 2儲蓄彈簧力。然後，穿線體8抗拒穿線桿彈簧1 2之 彈簧力進一步下降到箭號Y 2之方向。此時，穿線轉動銷 1〇之另一端10m套合於穿線體8之轉動凸輪部8A，而且 (雖未圖示）轉動凸輪部8A之凸輪槽是沿著螺旋狀，因 此’由於穿線體8與轉動凸輪部8 —齊下降，轉動銷1 〇 會以穿線桿9之軸心P 1爲中心一體地轉動於時鐘方向， 即箭號K1之方向（參照圖9 )。 在此，停止器4之高度位置設定在當使用者以指尖進 一步按下穿線體8之操作桿8 B而穿線體8到達下死點時 ’鉤部20之高度位置與針7之針孔7A之高度位置相當 〇 如上所述，在使用者按壓操作穿線體8之操作桿8 B 將穿線體8按下朝箭號Y1之方向時，穿線桿9與轉動銷 10即轉動於時鐘方向，即箭號K1之方向（參照圖9 )。 結果是固定於穿線桿9之下端之穿線鉤體1 3也轉動於時 鐘方向，即箭號K1之方向（圖9至圖11)，如圖11及 -15- (13) (13)200401063 圖1 3所不穿線鉤體1 3之鉤部2 0***針7之針孔7 A。 另方面’連設於穿線鉤體1 3之後端之臂部1 3 A以軸 心P 1爲中心同樣地轉動於時鐘方向（箭號K 1 0 =箭號K 1 之方向）。因此’藉由套合於臂部；[3 A之長孔部1 3 B之 套合銷1 6 A及臂部1 6 K ’連動齒輪1 6同樣地轉動於時鐘 方向（箭號R1之方向）。因爲連動齒輪16之齒輪部 1 6 W與導線體1 4之齒輪部1 4 A之齒輪比爲被定爲1 : 1， 所以導線體1 4之齒輪部1 4以軸心p 1爲中心以與連動齒 輪1 6相同之轉動角度轉動於逆時鐘方向（箭號R2之方向 )° 此時，連動齒輪1 6會被加速。亦即，在圖丨1中，虛 擬線V 1連結穿線桿9之未轉動時之轉動中心之軸心p】 與套合銷1 6 A之中心。虛擬線V 2連結穿線桿9之轉動停 止時之軸心P 1與套合銷1 6 A之中心。在此以軸心P 1爲 中心轉動之穿線鉤體1 3之臂部1 3 A之轉動角爲A。以軸 心P 2爲中心轉動之連動齒輪1 6之臂部1 6 K之轉動角度 爲B。如圖1 1所示，轉動角度B比轉動角度A大得多（ )。因此，連動齒輪1 6之臂部1 6K比穿線鉤體1 3之 臂部1 3 A之轉動角度大。因而，連設於連動齒輪1 6之臂 部1 6K之齒輪部1 6W轉動多些。亦即，齒輪部1 6 W被加 速。連動齒輪]6之齒輪部1 6 W由於被如此加速，連帶地 與齒輪部1 6同步轉動之導線體1 4之齒輪部1 4 A也被加 速。如上所述，在可以加速導線體1 4之齒輪部1 4 A時， 可以將在起始位置之導線體1 4盡量由針4之位置向箭號 -16- (14) (14)200401063 M2之方向遠離’以對擴充針4附近之空間有所貢獻’以 利裁縫作業。 在本實施例中’由於上述連動圈輪1 6之齒輪部1 6 W 之轉動，亘有齒輪部1 4 Α β導線體1 4在軸心P〗周圍轉 動於逆時鐘方向’即箭號Μ1之方向（参照弟9圖）°導 線體1 4開始向箭號Μ 1之方向轉動時’導線體1 4之引導 部1 4Β由始動位置S 1移位到比針7更右側之轉動位置S2 (參照圖1 1，圖3 )。結果’掛在導線體14之引導部 14Β之線24，如圖3與圖4所示’被保持於針7之針孔 7Α之前面略呈水平。 在本實施例中，線24被如上所述在針7之針孔7 A 之前面保持略呈水平之後’穿線鉤體20也可以立即轉動 於箭號K 1之方向而到達套合位置S 3。或者’穿線鉤體 2 〇轉動於箭號K 1之方向而到達套合位置S 3之後’吊掛 於導線體14之引導部14B之線24被保持略呈水平之形態 。或是同時進行也可以。 在本實施例中，於圖1 2 ’線24被移送到箭號Μ1之 方向時，線部分2 4 c是由夾持構件1 7、1 6所夾持’另外 ，線 24之另一端（線軸側）之方向由預拉彈簧（ pretention spring )(圖示略）施加張力，因此’線24是 沿著形成於穿線夠體1 3之夠導2 7之則栖側之傾斜引導面 之導件2 8 X，或沿著鉤部2 0之前端傾斜面2 0 η被引導至 鉤部20側。亦即，可以將線24引導至鉤部20之繫止孔 2 0 m相對面。此時，如圖1 2所示，通過針7之針孔7 Α而 -17- (15) (15)200401063 到達套合位置S3之鉤部20可以與線24套合。 然後，在圖3所示之狀態下，使用者一由穿線體8之 操作桿部8B鬆開指尖時，利用被彈性收縮之穿線桿彈簧 1 2之彈簧之反彈力，穿線體8開始與轉動凸輪部8 A 一齊 上升至箭號Y1之方向。因此’由於穿線體8之螺旋狀轉 動凸輪部8 A之凸輪部作用，穿線鉤體1 3與鉤部2 0 —齊 在穿線桿9之軸心P 1之周圍轉動於逆時鐘方向，即箭號 K2之方向（參照圖1 1 )，同時導線體1 4轉動於箭號M2 之方向。藉此，套合位置S3之鉤部20會後退至箭號K2 之方向，因此鉤部20通過針孔7A由針孔7A脫離到箭號 K2之方向。換言之，圖1 2所示狀態下之鉤部20吊掛線 2 4，而吊掛線2 4之狀態的鉤部2 0通過針7之針孔7 A而 沿著箭號K 2之方向由針孔7 A脫離。 在本實施例中，當吊掛著線2 4之鉤部2 0如上所述轉 動於反方向（箭號K2之方向）時’如圖8所示’套合於 單向式之凸輪部2 1之凸輪面2 2之線握持盤1 7之凸部 17A登上凸輪面22之傾斜面22B2再爬上高位面22B1 ’ 因此線握持盤1 7被提升於箭號Y1之方向。結果是解除 了由線握持部2 5對線2 4之線部分2 4 c之握持。因爲線 2 4之線部分2 4 c之握持如此地自動被解除’吊掛著線2 4 之狀態的鉤部2 0可以通過針7之針孔7 A而容易地由針 孔7A脫離。 另外，當使用者由穿線體8之操作桿8 B鬆開指尖時 ，穿線體8由於穿線桿彈簧1 1之彈簧反彈力而上升至箭 -18- (16) 200401063 號Y1之方向，並提高轉動銷1 〇 ’因此穿線桿9 部2 0也開始上升至箭號γ 1之方向’但因線24 2 4 c之握持已被解除，因此線2 4可以簡單地由 ，而且不受穿線體8上升之影響，在針孔7Α部 圈（1 ο ο ρ )，不致變小或短少。在此狀態下，針 7Α可以穿線24，同時在針孔7Α之後方形成著 之線圈。 如上所述，在本實施例中，若使用者操作 8 Β時，即自動進行導線體1 4之轉動，穿線鉤懂 號Κ 1方向之轉動，穿線鉤體1 3向反方向之箭费 之轉動，以及凸輪部2 1之操作，且線24穿過針 7Α。而且在線穿過針7之針孔後，線握持部25 動解除。 因此，本實施例中，穿線時，若將上線之線 針軸掛線部6並將線2 4之中離開針軸2之線部 止於線握持部2 5時，若使用者以指尖按壓操作 8Β於箭號Υ2之方向，即可自動地將線穿過針 7Α。因此’使用者只要以指尖操作操作桿8Β即 述之先前公報技術不同，使用者不必同時操作雙 作業之操作法簡便。 在本實施例中，針軸掛線部6之高度與握ίΐ 線握持部2 5之高度大致相同，因此，可以將線 正側面保持於水平方向，以免吊掛線2 4有錯誤 導線體1 4之引導部1 4 Β之高度位置也與針軸掛 上升，鉤 之線部分 鉤部脫離 分留下線 7之針孔 適當大小 操作桿部 I 13向箭 I Κ2方向 7之針孔 之握持自 24掛上 分2 4c繫 操作桿部 7之針孔 可，與上 手，穿線 ，線2 4之 24向大致 。此外， 線部6之 -19- (17) 200401063 高度位置與線握持部2 5之高度位置大致相同’因此對 將紙24向大致正側面保持於水平方向更加有利。 再者在線握持部2 5有應握持線2 4 Z時機與解除握 之時機。線握持盤1 7之開關可以藉由凸輪部2 1之凸輪 22之凹凸來達成，線握持部25之握持解除可以自動進 〇 又在本實施例中，爲使將線2 4吊掛於穿線鉤體1 3 鉤部20而將線24保持於水平方向之導線體14對穿線 體1 3之轉動方向轉動於反方向之構造可以藉由使用連 齒輪1 6之齒輪機構來達成。藉使用此種齒輪機構。也 利於達成穿線裝置整體之空間之節省。因此，可以不損 外觀之形狀，不但對新種類之縫紉機，而且對現有機種 縫紉機也有開展之用途。 將上述實施例之線握持部2 5之握持解除作用依據 1 7加以整理即得下面之結論。在圖1 7中，縱軸表示凸 17A之平面位置，而橫軸表示在凸部17A之凸輪面22 所在位置。亦即，在橫軸中，A區（zone A) ，B區， 區，D區，E區，F區及Η區表示凸部17A分別位於直 槽部22Β之高平面22Β1，直線槽部22Β之傾枓面22Β2 直線槽部22Β之低平面22Β3，圓弧槽部22Α之高平 22Α1以及直線槽部22Β之高平面22Β1之上。而在線握 而1 6r與線握持盤1 7之線握持面1 71•之間的線24之線 分24c在各區中之狀態如下。 A區：線握持部25呈圖14所示之狀態，此時，線 於 持 面 行 之 鉤 動 有 及 之 圖 部 之 C 線 面 持 部 24 -20- (18) (18)200401063 之線部分2 4 c係在線握持面1 61·與線握持盤l 7之線握持 面17!•之間呈非夾持狀態，惟呈繫止於凸起ι7ζ之狀態， 所以拔不出。 Β區：線握持盤1 7之線握持面1 71•慢慢下降至線握 持面1 6r之方向而開始夾持線24之線部分24c。 C區：線握持部25成爲圖15所.示之狀態，線24之 線部分24c在線握持面1 6r與線握持盤1 7之線握持面1 7r 之間呈夾住狀態。 D區：與C區相同。 E區：線握持盤1 7之線握持面1 71開始慢慢離開線握 持面1 6 r，並開始釋放線2 4之線部分2 4 c。 F區：線握持部25呈圖16所示之狀態，線24之線 部分24c在線握持面1 6r與線握持盤1 7之線握持面1 7r之 間，成爲比A區之狀態更爲非夾持狀態。 G區：轉位至與A區相同狀態之G區之過程。 Η區：與A區相同 在A區中，線24之線部分24c在線握持面16r與線 握持盤1 7之線握持面1 7r之間雖然呈非夾持狀態，由於 凸起17z而無法拔出，因此藉由未圖示之挑線彈簧（ t h r e a d t a k e - u p s p r i. n g )之作用吸收掛線。因此，形成線圏 後，不至於因爲挑線彈簧而破壞線圈之虞。 在上述實施例中所設構件之位置，形狀，移動方向等 並不僅限定於上述實施例之形態而已，而可以適當地變更 。上述實施例中，雖然設定爲穿線時使用者以指尖按壓操 -21 - (19) (19)200401063 作操作桿部8 B於下方，即箭號Y2之方向，但並不限定 於此，看情形，也可以在穿線時將操作桿部操作於上方。 在上述實施例中並不限定彈簧爲線圈形狀，看情形，也可 以使用片簧等，恰當選用。另外，也可以將凸輪部21與 鉤體1 3 —體成形。再者，圖1 7所示之握持，解除之時機 爲例示之用，並非侷限於此。此外上述之實施例並非侷限 於上述與圖式所示之實施例而已，在未脫離要旨之範圍內 可以適當變更實施。本實施例所記載之構件之內容爲例示 者，即使爲一部分，也屬各申請專利範圍所記載之範圍。 〔發明之效果〕 利用本發明之縫紉機，若使用者操作操作桿部，即進 行導線體之轉動，穿線鉤體之正向轉動，穿線鉤體之逆向 轉動，以及凸輪部之操作’而線即穿過針的針孔。尤其是 凸輪部操作而自動解除線握持部之握持作用。因此’穿線 時使用者不必同時操作雙手’穿線之操作簡便。而且在穿 線鉤體之待機，線並未被握持於線握持部所以掛線時’可 以吸收挑線彈簧之作用’藉此’在形成線圈後’沒有由於 挑線彈簧以致破壞線圈之虞。 【圖式簡單說明】 圖1爲表示穿線裝置之起始位置’且穿線體到達其上 升端之形態之剖面圖。 圖2爲表示穿線裝置之操作的進行中途之剖面圖。It fires 5. The needle clamp 5 is provided with a needle threading portion 6 for threading the upper thread 24. A needle 7 is fixed on the needle clamp 5 in a removable state. Needle shaft arm 1 is provided with parts 1 a, 1 c of threading rods 9 parallel to the longitudinal axis of needle shaft 2. The threading rod 9 is provided to be movable up and down with respect to the needle shaft arm 1. In addition, the 'threading shaft 9 is provided to the needle shaft arm 1 so as to be rotatable around its axis P1. The threading body 8 has a part 8 f, 8 h. The parts 8 f and 8 h are fitted on the threading shaft 9 ′ and the threading body 8 is installed so as to be able to lift and lower the threading rod 9. On the upper surface of the threading body 8, a rotary cam portion 8A formed in a spiral shape with a grooved cam shape is formed. The rotating cam portion 8A has a lower end 8A1 and an upper end 8A2. The threading body 8 has an operating lever portion 8B under the user's fingertips. A rotation pin 10 of a rotation operation member is fixed in the middle area in the axial length direction of the threading rod 9 to be orthogonal to the threading rod 9. The length of the rotation pin 10 is set to one end 1 Oh of the rotation pin 10, which can be abutted to the stop 4A of the stopper 4, and the other end 10 m of the rotation pin 10 can be abutted to the spiral rotation of the threading body 8. Cam section 8 A. A coil-shaped threading spring 11 is installed at a portion 1 d of the base 1 X connecting the threading body 8 and the needle shaft arm 1. In the starting position before threading, the threading body 8 is pushed upward by the threading spring 11, that is, in the direction of the arrow Y1. Between the rotating pin 10 of the threading rod 9 and the portion 8f of the threading body 8, a coiled threading rod spring 12 is provided. Threading rod spring 1 2 Pair of threading body 8 Press the threading rod 9 downward, that is, press in the direction of arrow Y2. Because the spring force of the threading rod spring 12 is stronger than the spring force of the threading spring 11 1, in the initial position shown in FIG. 1, the rotation pin 10 is located at the lower end of (6) (6) 200401063 of the slotted cam portion 8 A 8 A 1. When the user presses the operating lever portion 8B of the threading body 8 with his fingertips, that is, in the direction of arrow Y1, the initial motion is that the threading body 8 and the threading rod move together as shown in FIG. 2, and the rotation pin 1 〇 The stopper 4 A is connected to the stopper 4. As shown in FIG. 2, at the time of the top connection, the threading rod 9 stops and then descends. From the point of time of the above-mentioned pressing, by further pressing operation of the operation lever portion 8 B of the threading body 8, and the threading body 8 moves downward, that is, the position 8 f of the threading body 8 when moving in the direction of the arrow Y 2 Since it will fall, the threading rod spring 12 starts to be compressed, and the rotation pin 10 moves along the rotation cam portion 8 A of the threading body 8. Therefore, the rotation pin 10 is rotated around the axis P1, and the threading rod 9 is rotated in the clockwise direction, that is, the direction of the arrow K1 (see FIG. 9). When the user relaxes the force applied to the operating lever portion 8B of the threading body 8, due to the elastic return of the threading rod spring 12 and the cam action of the rotating cam portion 8A of the threading body 8, the threading rod 9 is centered on the axis P 1 is the center and rotates in the counterclockwise direction, that is, the direction of the arrow K2 (see FIG. 9). At the same time, the threading body 8 and the threading rod 9 are integrated into the direction of the arrow Y1 by the spring force of the threading spring, and the thread is threaded. The body 8 and the threading rod 9 are pulled back to the starting position shown in FIG. 1. As shown in FIG. 4, a threading hook body 1 3 is fixed at the lower end of the threading rod 9. As shown in FIG. 9, the threading rod 9 and the threading hook body 13 are integrally rotated in the direction of arrows K1, K2 with the axis P1 as the center. The hook portion 20 is fixed by riveting and clamping the plate portion 1 3 X which constitutes the threading hook body 13. A hook guide 2 7 is formed on the front end side of the plate portion 1 3 X. As shown in FIG. 12, the thickness of the hook portion 20 can be inserted into the pinhole 7A of the needle 7 so as to be thin, and the hook portion 20 has a tie hole 20 m of the tie line 24 and a leading end inclined surface 20 η. -9- (7) (7) 200401063 As shown in FIG. 5 'the threading hook body 1 3 has a base Π D fixed to the lower end of the threading rod 9 and rotating with the threading rod 9 and a horizontal direction from the base 1 3 D Extending arm portion 13A. The arm portion 13A can be displaced in the direction of the arrow W4 with respect to the base portion 1 3 D by the rotating member 13t. The arm portion 1 3 A is formed with a long hole portion 1 3 B along the arm portion 1 3 A. The arm portion 1 3 A is provided with a one-way cam portion 21 which can be slid freely, that is, a one-way type. The one-way cam portion 21 has a protruding portion 1 7 A having a function of a cam driven member which will be described later. The grooved cam surface 22 can be moved and fitted. As shown in FIG. 6, the cam surface 22 has a circular arc groove portion 22A extending in a circular arc shape, a linear groove portion 22B extending in a linear shape, a step portion 2 2 C for preventing the convex portion 17A from reversing, and switching The conversion position 22E of the arc groove portion 2 2 A and the linear groove portion 2 2 B. The cross-sectional shape of the arc groove portion 22A is shown in FIG. 7. As shown in FIG. 7, the arc groove portion 22A has a high plane 22A1, a low plane 22A3, and an inclined surface 22 A2 formed between the two planes. The cross-sectional shape of the linear groove portion 22B is shown in Fig. 8. As shown in the figure, the linear groove portion 2 2 B has a low plane 22B3 that is the same plane as the low plane 22A3 of the arc groove portion 22A, a high plane B1 slightly lower than the high plane 22A1 of the arc groove portion 22A, and is formed on both planes. Between the inclined surface 2 2 B 2. The step between the high plane 2 2 B 1 of the linear groove portion 2 2 B and the high plane 22A1 of the arc groove portion 22A becomes a stepped portion 22C that prevents the reverse of the convex portion 17A. At the lower end of the threading rod 9 in FIG. 9, the lead body 14 is installed so as to be able to idle in the directions of arrows μ1 and M2 around the axis P1 of the threading rod 9. Therefore, the 'lead wire body 14 can relatively rotate the threading rod 9 around the axis P1 in the opposite direction. The lead body I 4 has a guide portion 1 4 B that guides the wire 2 4. -10- (8) 200401063 The lead body 14 is provided with an externally toothed gear portion 1 4 A as a whole. The gear 1 4 A can rotate around the axis P 1 of the threading rod 9. At the position 8 s, 81 of the threading body 8 in FIG. 4, an auxiliary threading rod 15 capable of rotating in a parallel position of the bud thread I is installed. The auxiliary threading rod 15 has a shaft-type shaft center P 2. Transmission teeth 16 are fixed at the lower end of the auxiliary threading rod 15. The transmission gear 16 rotates around the shaft center P 2. As shown in FIG. 4, the transmission gear 6 has an externally toothed gear portion 16 W ′ and an extended lateral arm portion] 6K. The arm portion 16K has a fitting 16A containing a protrusion 16A1. The engaging pin 16A of the transmission gear 16 is inserted into the displaceable state by the long hole portion 1 3B of the portion 13 of the body 13 along the luxury bud line. A thread gripping plate 17 having a horizontal thread gripping surface 17r is assembled below the lower end of the auxiliary threading rod 15. As shown in FIG. 4, the thread holding disk 17 can rotate around the axis P 2 of the auxiliary threading rod 15, and can slide along the upper and lower directions of the auxiliary threading rod 15, that is, in the directions of arrows Y1 and Y 2. The wire grip 17 has a convex portion 17A protruding downward as a gear passive body. The threading aid 15 is equipped with an E-ring 18. A coil-shaped wire holding spring 19 and an auxiliary threading rod 15 are mounted on the coaxial of the E ring 18 and the wire holding disk 17. The holding spring 19 always keeps the wire holding disc 17 downward, that is, the arrow Y2 side, in other words, presses the wire holding direction. The convex portion 17A protruding below the wire holding disk 17 and having the function of the cam follower is pressed against the cam surface 22 of the cam portion 21 by the spring force of the wire holding spring 19. That is, as shown in FIG. 5, the convex portion 17A of the wire holding disk is a circular groove portion 22A which is fitted into the one-way cam portion 21 and the linear groove portion 22B. The concave-convex shape of the convex surface 22 is selected. The vertical part of the concave-convex part 9 is shown until the pin arm is held in the piercing auxiliary line direction, which can be in the shape of 17 or -11-(9) (9) 200401063, and the line holding plate 1 7 moves up and down on the arrow γ 1, Y2. direction. The thread holding portion 25 of this embodiment can be used to hold and hold a thread, and is composed of an arm portion 16K of a transmission gear 16 and a thread holding plate 17. That is, it can be seen from FIG. 4 that the spring force of the wire holding spring 19 of the pressing member presses the wire holding disk 17 downward, that is, the direction of arrow Υ2, so if it is at the arm 1 of the transmission gear 16 6 Κ 之 线 手 面 1 1 6r and the wire holding plate 1 7 7 ， • The wire holding part 1 4 1 2 Slide the wire part 2 4 c in the horizontal direction, you can arm 1 6 K wire holding surface 1 6 r and wire holding plate 1 7 wire holding surface 1 7 i • wire holding portion 2 4 c. Therefore, the arm portion 6K and the wire holding plate 17 can function as a group of holding members that hold and hold the wire portion 2 4 c of the wire 2 4. Details of the wire holding portion 25 will be described with reference to FIGS. 14 to 16. As shown in FIG. 14, when the hook body 13 is in standby (FIG. 1, FIG. 9), a line holding surface 17 r of the online holding plate 17 and a line holding surface 16 r of the arm 16 are formed. With a specific gap (0.4 mm), the line portion 24c of the stern line 24 is inserted. The inserted wire 24 is prevented from being pulled out by the protrusion 17z. When the thread is hung (Fig. 10, Fig. 1), as shown in Fig. 15, the protrusion 17a linked to the cam surface 22 causes the wire holding plate 17 to fall, and the wire 24 is held on the wire holding plate 1 Between the holding surface 1 7r of 7 and the line holding surface 16r of the arm 16K. When released, as shown in FIG. 16, the convex portion 17A linked to the cam surface 22 raises the wire holding plate 17 slightly higher than the state shown in FIG. 14, and holds the wire 2 4 by the wire holding plate 17 The grip between the holding surface 17 r and the line holding surface 16 r of the arm 16 K is released. As shown in FIG. 9, the gear portion 16 W of the transmission gear 16 meshes with the gear portion 1 4 A of the lead body 14 to constitute a gear mechanism. Here, when the threading hook body-12- (10) (10) 200401063 1 3 is turned in the direction of the arrow κ1, the arm n A of the threading hook body 1 3 is rotated around the axis P 1 as the center of the arrow The direction of K 1 0 (= the direction of the arrow κ 丨), so the long hole portion 1 3 Β of the arm portion 1 3 Α rotates in the same direction. Therefore, through the fitting pin 6A and the arm 6B that fit into the long hole 丨 3B, the interlocking gear 16 rotates in the direction of the arrow R1 around the axis P2. Then, the gear portion 14A of the 'lead wire body 14 is rotated in the direction of the arrow R2 with the axis P1 as the center. That is, the wire body 4 is centered on the axis ρ 1 and is rotated in the opposite direction (the direction of the arrow M1) to the rotation direction of the threading hook body 13 (the direction of the arrow K1). The function of the cam portion 21 in the single mode will be described further. That is, although the convex portion 1 7 A of the wire holding plate 17 is moved along the shape of the cam surface 2 2 of the cam portion 21, the initial position of the convex portion 1 7 A is from the position shown in FIG. 5. Start position T 1. When the threading hook 1 3 starts to rotate around the axis p 1 in the direction of the arrow K 1, the arm of the threading hook] 3 丨 3 a also starts to rotate around the axis P 1 as the center of the arrow The direction of K 1 0 is the direction of arrow K i), and the convex portion 17 A of the wire holding disk 17 is moved along the cam surface 2 2 of the one-way cam portion 21. At this time, the advance of the convex portion 1 7 A is blocked by the step portion 22C at the boundary between the linear groove portion 22B of the cam portion 21 and the arc groove portion 22A, and the convex portion 1 7 A automatically moves in the direction of the linear groove portion 2 2 B. That is, the arrow T2 moves. At this time, the cam portion 21 can be appropriately displaced in the direction of the arrow W4 (see FIG. 5). In addition, at the time point when the threading hook body 13 is turned to the direction of the arrow K1, the convex portion 17A has reached the switching position 22E of the cam surface 22, and the threading body 8 has reached the bottom dead point. Then, the pressing operation of the operating lever portion 8 B is canceled, and the spring -13- (11) (11) 200401063 of the threading lever spring 1 2 starts to reverse, that is, toward the arrow κ 2 Rotating in the direction (refer to FIG. 9), the convex portion 17 A also moves to the arc groove portion 22A of the cam surface 22. As a result, the convex portion 17A moves on the inclined surface 2 2 A 2 of the circular groove portion 22A, passes through the reference surface 2 2 A 1, and reaches the local surface 22B 1 of the linear groove portion 2 2 B. As a result, the convex portion 1 7 A having the function of a cam passive member is lifted to the direction of the arrow Y 1, and the convex portion 17 a line holding disk 17 is lifted to the direction of the arrow Y 1 and released. The thread holding portion 25 holds the thread 24. Next, the case where the thread 24 is passed through the pinhole 7A of the needle 7 will be explained. First, confirm that the needle shaft 2 is near the top dead center. Then, with your fingertips, pull the needle thread hanging portion 6 of the needle clamp 5 guided by the needle thread 2 to the needle clamp 2 from the thread 2 4 passing through the thread above each guide. In addition, as shown in FIG. 1, the wire 24 is hung on the guide portion 14B of the wire body 14. The wire 24 is further inserted into the transmission gear [6] and the wire holding portion 25 composed of the wire holding plate 17 and the wire portion 24c of the wire 24 is mounted on the wire holding portion 25 in the state shown in FIG. As a result, the needle shaft 2 side of the thread 2 4 is hung on the needle shaft hanging portion 6, and at the same time, the thread portion 24 c separated by the needle shaft 2 in the thread 24 is shown in FIG. 14, and the thread holding portion 25 And the protrusion 1 7Z is kept free without being disengaged, whereby the effect of a thread take-up spring (not shown) can be absorbed. As shown above, while hanging the thread 2 4 on the needle thread hanging portion 6 of the needle holder 5, the thread portion 24c separated from the needle shaft 2 by the thread 24 is stopped at the thread holding portion 2 in the state shown in FIG. In the state of 5, in FIG. 1, the operator presses the operating lever portion 8B of the threading body 8 downward with the fingertips, that is, in the direction of the arrow Y2. Then, the thread portion 24c is lowered to the arrow Y2 by the spring force of the threading spring 11 in the state of -14-(12) (12) 200401063 of the thread holding portion 25 in the state of Fig. 15 direction. At this time, the entire threading device mounted on the threading body 8 and the threading rod 9 descends substantially parallel to the needle shaft 2 as a whole. When the entire threading device is lowered to a certain extent, as shown in FIG. 2, the rotation pin 10 inserted into the threading rod 9 is abutted on the stopper 4 A of the stopper 4 of the needle shaft 2 and blocks the rotation pin 10 from descending further. . However, when the user continues to press the operating lever portion 8B of the threading body 8 with a fingertip, the threading rod spring 12 pressed by the portion 8f of the threading body 8 elastically contracts, and the spring force is stored in the threading rod spring 12. Then, the threading body 8 resists the spring force of the threading rod spring 12 further down to the direction of arrow Y2. At this time, the other end 10m of the threading rotation pin 10 is fitted on the rotation cam portion 8A of the threading body 8 and (though not shown) the cam groove of the rotation cam portion 8A is in a spiral shape. Lowering with the rotating cam portion 8, the rotating pin 10 will rotate in the clock direction, that is, in the direction of the arrow K1, with the axis P1 of the threading rod 9 as the center (see FIG. 9). Here, the height position of the stopper 4 is set when the user further presses the operating lever 8 B of the threading body 8 with the fingertip and the threading body 8 reaches the bottom dead center. The height position of the hook 20 and the pinhole of the needle 7 The height position of 7A is equivalent. As described above, when the user presses the operation lever 8 B of the threading body 8 and presses the threading body 8 toward the arrow Y1, the threading rod 9 and the rotation pin 10 rotate in the clock direction. That is, the direction of the arrow K1 (refer to FIG. 9). The result is that the threading hook body 13 fixed to the lower end of the threading rod 9 also rotates in the clock direction, that is, the direction of the arrow K1 (Figure 9 to Figure 11), as shown in Figures 11 and -15- (13) (13) 200401063. The hook portion 20 of the threadless hook body 13 of 13 is inserted into the needle hole 7 A of the needle 7. On the other hand, the arm portion 1 3 A connected to the rear end of the threading hook body 13 is also rotated in the clock direction with the axis P 1 as the center (the direction of the arrow K 1 0 = the direction of the arrow K 1). Therefore, 'by fitting on the arm portion; [3 A long hole portion 1 3 B fitting pin 1 6 A and arm portion 1 6 K' interlocking gear 16 is also rotated in the clock direction (direction of arrow R1 ). Since the gear ratio of the gear portion 16 W of the interlocking gear 16 to the gear portion 1 4 A of the lead body 14 is set to 1: 1, the gear portion 14 of the lead body 14 is centered on the axis p 1. The same rotation angle as the interlocking gear 16 is rotated in the counterclockwise direction (the direction of the arrow R2) ° At this time, the interlocking gear 16 will be accelerated. That is, in FIG. 1, the virtual line V 1 connects the axis p of the rotation center of the threading rod 9 when it is not rotated, and the center of the pin 16 A. The virtual line V 2 connects the center of the shaft center P 1 when the rotation of the threading rod 9 stops and the pin 16 A. Here, the rotation angle of the arm portion 1 3 A of the threading hook body 13 rotating around the axis P 1 as the center is A. The rotation angle of the arm portion 16 K of the interlocking gear 16 that rotates around the axis P 2 is B. As shown in Figure 11, the rotation angle B is much larger than the rotation angle A (). Therefore, the rotation angle of the arm portion 16K of the interlocking gear 16 is larger than that of the arm portion 13A of the threading hook body 13. Therefore, the gear portion 16W connected to the arm portion 16K of the interlocking gear 16 rotates more. That is, the gear portion 16 W is accelerated. Since the gear portion 16 W of the interlocking gear 6 is accelerated in this way, the gear portion 14 A of the wire body 14 which is synchronously rotated in synchronization with the gear portion 16 is also accelerated. As described above, when the gear part 14 A of the lead body 14 can be accelerated, the lead body 14 at the starting position can be moved from the position of the needle 4 to the arrow -16- (14) (14) 200401063 M2 as much as possible. Keep away from the direction 'to contribute to the space near the expansion needle 4' to facilitate the tailoring operation. In the present embodiment, 'the gear portion 1 6 W of the interlocking ring wheel 16 is rotated, and the gear portion 1 4 Α β wire body 14 is rotated in the counterclockwise direction around the axis P', that is, the arrow M1. Direction (refer to Figure 9) ° When the lead wire 1 4 starts to rotate in the direction of the arrow M 1 'The guide part 1 4B of the lead wire 1 4 is shifted from the starting position S 1 to the rotation position S 2 to the right of the needle 7 (Refer to Figure 11 and Figure 3). As a result, the wire 24 hung on the guide portion 14B of the wire body 14 is held horizontally in front of the pinhole 7A of the needle 7 as shown in Figs. 3 and 4. In this embodiment, after the thread 24 is kept slightly horizontal in front of the pinhole 7 A of the needle 7 as described above, the threading hook body 20 can also be immediately rotated in the direction of the arrow K 1 to reach the sleeve position S 3 . Alternatively, after the threading hook body 20 is rotated in the direction of the arrow K 1 to reach the fitting position S 3, the wire 24 hung on the guide portion 14B of the wire body 14 is maintained in a slightly horizontal state. Or you can do it at the same time. In this embodiment, when the line 24 is moved to the direction of the arrow M1 in FIG. 12, the line portion 2 4 c is held by the holding members 17 and 16. In addition, the other end of the line 24 ( The direction of the bobbin side is tensioned by a pretention spring (not shown), so the 'line 24 is a guide along the inclined guide surface formed on the perch side of the threading body 1 3 and 2 7 The piece 2 8 X, or the inclined surface 20 η along the front end of the hook portion 20 is guided to the hook portion 20 side. That is, the wire 24 can be guided to the opposing face of the tie hole 20 m of the hook portion 20. At this time, as shown in FIG. 12, the hook portion 20 which has reached the fitting position S3 through the pinhole 7 A of the needle 7 can be engaged with the thread 24. Then, in the state shown in FIG. 3, when the user releases the fingertip from the operation lever portion 8B of the threading body 8, the spring force of the threaded body spring 12 which is elastically contracted is used to start the threading body 8 and The turning cam portion 8 A rises to the direction of arrow Y1 at the same time. Therefore, 'because of the cam portion of the spiral rotation cam portion 8A of the threading body 8, the threading hook body 13 and the hook portion 20 are aligned around the axis P1 of the threading rod 9 in a counterclockwise direction, that is, the arrow The direction of No. K2 (refer to FIG. 1 1), at the same time, the lead body 14 is rotated in the direction of arrow M2. As a result, the hook portion 20 at the fitting position S3 will retreat to the direction of the arrow K2. Therefore, the hook portion 20 is disengaged from the pinhole 7A to the direction of the arrow K2 through the pinhole 7A. In other words, the hook portion 20 in the state shown in FIG. 12 hangs the thread 24, and the hook portion 20 in the state of the suspending thread 24 passes through the pinhole 7A of the needle 7 in the direction of the arrow K2. The pinhole 7 A comes off. In this embodiment, when the hook portion 20 of the hanging wire 2 4 is rotated in the opposite direction (the direction of the arrow K2) as described above, it is fitted on the one-way cam portion 2 as shown in FIG. 8. The cam surface 2 of 1 The convex portion 17A of the wire holding plate 1 7 reaches the inclined surface 22B2 of the cam surface 22 and climbs to the upper surface 22B1 ′. Therefore, the wire holding plate 17 is lifted in the direction of arrow Y1. As a result, the grip of the wire portion 2 4 c of the wire 24 by the wire holding portion 25 to the wire 24 is released. Because the grip of the thread portion 2 4 c of the thread 2 4 is automatically released in this way, the hook portion 20 in the state of hanging the thread 2 4 can be easily disengaged from the pin hole 7A through the pin hole 7 A of the needle 7. In addition, when the user releases the fingertip from the operating rod 8B of the threading body 8, the threading body 8 rises to the direction of arrow -18- (16) 200401063 Y1 due to the spring rebound force of the threading rod spring 11 and Raise the rotation pin 1 〇 ', so 9 threading rods 2 0 also start to rise to the direction of arrow γ 1', but because the grip of the thread 24 2 4 c has been released, the thread 2 4 can be simply moved and not affected The effect of the rising of the threading body 8 is not reduced or reduced in the pinhole 7A (1 ο ο ρ). In this state, the needle 7A can be threaded 24, and at the same time, a coil is formed behind the needle hole 7A. As described above, in this embodiment, if the user operates 8B, the wire body 14 is automatically rotated, the threading hook is turned in the direction of K1, and the arrow of the threading hook 13 is in the opposite direction. Rotation, and operation of the cam portion 21, and the thread 24 passes through the needle 7A. After the thread passes through the needle hole of the needle 7, the thread holding portion 25 is released. Therefore, in this embodiment, when threading the thread, if the upper thread needle shaft hangs the thread portion 6 and the thread portion of the thread 24 leaving the needle shaft 2 is stopped at the thread holding portion 25, if the user presses his finger Press the tip 8B in the direction of arrow Υ2 to automatically pass the thread through the needle 7A. Therefore, the technique of the previous publication that the user only needs to operate the operation lever 8B with his / her fingertips is different, and the user does not need to operate the dual operation at the same time. In this embodiment, the height of the needle thread hanging portion 6 is substantially the same as the height of the holding thread holding portion 25, so the positive side of the thread can be kept in the horizontal direction to prevent the hanging thread 24 from having the wrong wire body. The height of the guide part of 1 4 1 4 B also hangs and rises with the needle shaft, the hook part of the hook thread is separated from the needle hole and the pin hole of the thread 7 is appropriately sized. It can be held from 24, and the pinholes of the 2 4c series operating lever portion 7 can be used to get on with the thread. In addition, -19- (17) 200401063 of the thread portion 6 is substantially the same as the height position of the thread holding portion 25 ', and therefore it is more advantageous to hold the paper 24 in a horizontal direction to the substantially positive side. In addition, the wire holding section 25 has timings for holding the wire 2 4 Z and timings for releasing the grip. The switch of the wire holding plate 17 can be achieved by the unevenness of the cam 22 of the cam portion 21, and the release of the grip of the wire holding portion 25 can be automatically advanced. In this embodiment, in order to suspend the wire 2 4 The structure in which the wire body 14 hung on the threading hook body 1 3 hook portion 20 and holding the wire 24 in the horizontal direction to the rotation direction of the threading body 13 in the reverse direction can be achieved by using a gear mechanism with a gear 16. By using this gear mechanism. It is also beneficial to save the space of the whole threading device. Therefore, the shape of the appearance can be maintained, and the utility model can be used not only for new types of sewing machines but also for existing types of sewing machines. The following conclusions can be obtained by sorting the grip-releasing action of the thread-gripping portion 25 of the above embodiment according to 17. In Fig. 17, the vertical axis indicates the plane position of the convex portion 17A, and the horizontal axis indicates the position of the cam surface 22 of the convex portion 17A. That is, in the horizontal axis, zone A (zone A), zone B, zone, zone D, zone E, zone F and zone Η indicate that the convex portion 17A is located on the high plane 22B1 of the straight groove portion 22B, and the straight groove portion 22B The inclined plane 22B2 is above the low plane 22B3 of the linear groove portion 22B, the high plane 22A1 of the arc groove portion 22A, and the high plane 22B1 of the linear groove portion 22B. And the state of the line 24 and the line 24c of the line 24 between the 16r and the line holding surface 1 71 • of the line holding plate 17 are as follows. Area A: The line holding portion 25 is in the state shown in FIG. 14, at this time, the line holding portion 24 of the drawing portion of the drawing portion that is connected to the holding surface line is in line with the C line surface holding portion 24 -20- (18) (18) 200401063 The line portion 2 4 c is the line holding surface 1 61 · and the line holding surface 17! Of the line holding plate 17! Is in a non-clamped state, but is in a state of being stopped at a convex ι7ζ, so it cannot be pulled out. Out. Area B: the wire holding surface 1 71 of the wire holding surface 1 71 • Slowly descend to the direction of the wire holding surface 16r to start holding the wire portion 24c of the wire 24. Area C: The wire holding portion 25 is in the state shown in FIG. 15, and the wire portion 24c of the wire 24 is sandwiched between the wire holding surface 16r and the wire holding surface 17r of the wire holding plate 17. Area D: Same as Area C. Area E: The thread holding surface 1 7 of the thread holding surface 1 71 starts to slowly leave the thread holding surface 1 6 r and starts to release the thread portion 2 4 c of the thread 2 4. Area F: The line holding portion 25 is in a state shown in FIG. 16, and the line portion 24c of the line 24 is between the line holding surface 16r and the line holding surface 17r of the line holding plate 17, which is more than that of the area A The state is more non-clamped. Zone G: The process of indexing to zone G in the same state as zone A. Zone A: Same as Zone A. In Zone A, although the line portion 24c of the line 24 is held between the line holding surface 16r and the line holding surface 17 of the line holding plate 17r, it is in a non-clamped state due to the protrusion 17z. It cannot be pulled out, so the hanging thread is absorbed by the action of a thread take-up spring (not shown). Therefore, after the coil is formed, the coil is not damaged by the thread take-up spring. The positions, shapes, moving directions, etc. of the members provided in the above embodiments are not limited to the form of the above embodiments, but can be changed as appropriate. In the above embodiment, although it is set that the user presses the finger -21-(19) (19) 200401063 as the operation lever portion 8 B below the thread when threading, that is, the direction of the arrow Y2, but it is not limited to this. Depending on the situation, you can also operate the lever above when you thread. In the above embodiments, the spring is not limited to a coil shape. Depending on the situation, a leaf spring or the like can also be used, which is appropriately selected. The cam portion 21 and the hook body 1 3 may be integrally formed. Moreover, the timing of the holding and releasing shown in FIG. 17 is used as an example, and is not limited to this. In addition, the above-mentioned embodiments are not limited to the above-mentioned embodiments shown in the drawings, and may be appropriately changed and implemented without departing from the gist. The contents of the components described in this embodiment are examples, and even if they are a part, they also fall within the scope described in each patent application. [Effect of the Invention] With the sewing machine of the present invention, if the user operates the operation lever, the wire body is rotated, the threading hook body is rotated in the forward direction, the threading hook body is rotated in the reverse direction, and the cam portion is operated. Through the pinhole of the needle. In particular, the cam portion is operated to automatically release the gripping effect of the wire gripping portion. Therefore, the user does not need to operate both hands at the same time when threading. And during the standby of the threading hook body, the thread is not held in the thread holding portion, so when the thread is hung, it can 'absorb the action of the thread take-up spring', thereby avoiding the risk of damage to the coil due to the thread take-up spring after forming the coil . [Brief description of the drawing] Fig. 1 is a cross-sectional view showing a state where the threading device is at its initial position 'and the threading body reaches its rising end. Fig. 2 is a sectional view showing the progress of the operation of the threading device.
-22- (20) (20)200401063 圖3爲表示穿線裝置之操作的進行末期，且穿線體到 達其下降端之形態之剖面圖。 圖4爲表示穿線裝置之重要部位之構造之剖面圖。 圖5爲表示穿線鉤體之平面形態之構造圖。 圖6爲用於解除線握持部之握持之凸輪部之重要部位 之斜視圖。 圖7爲凸輪部之圓弧槽部附近之剖面圖。 圖8爲凸輪部之直線槽部附近之剖面圖。 圖9爲表示穿線裝置之起始位置’且穿線體到達其上 升端之形態的剖面圖，爲圖1所示狀態之平面圖。 圖1 0爲表示穿線裝置之操作進行中途之剖面圖’爲 圖2所示狀態之平面圖。 圖1 1爲表示穿線裝置之操作成爲進行末期’而穿線 體到達其下降端之形態的剖面圖’爲圖3所示狀態之平面 圖。 圖1 2爲由圖1 1之箭號x 1 2之方向所見情形之構造圖 〇 圖1 3爲表示在針的針孔被***鉤部之狀態的平面圖 〇 圖1 4爲表示在鉤體待機時，夾線板與線握持盤之關 係的圖。 圖1 5爲表示鉤體穿線時，夾線板與線握持盤之關係 的圖。 圖1 6爲表示鉤體之線被釋放時，夾線板與線握持盤 -23- (21) (21)200401063 之關係的圖。 圖1 7爲將線握持部之握持、解除作用與凸輪部之凸 部高度以時系列表示之圖表。 〔符號之說明〕 1 :針軸臂， 2 :針軸， 4 :停止器， 4 A :停止部， 6 :針軸穿線部， 7 :針， 7A :針孔， 8 :穿線體， 8 A :轉動凸輪部， 8 B :操作桿部， 1 〇 :轉動銷， 1 1 :穿線彈簧， 1 2 :穿線桿彈簧， 1 3 :穿線鉤體， 1 4 :導線體， 1 6 :傳動齒輪， 16A :套合銷， 1 7 :線握持盤， 1 7 A :凸部（凸輪被動件）， -24- (22) (22)200401063 1 9 :線握持彈簧， 2 0 :鉤部， 2 1 :凸輪部， 22 :凸輪面， 2 2 A :圓弧槽部， 2 2 B :直線槽部， 2 4 ··上線， 2 5 :握持部， 2 7 :鉤導。 -25-22- (20) (20) 200401063 Fig. 3 is a cross-sectional view showing a state in which the operation of the threading device is in the final stage and the threading body reaches its lower end. Fig. 4 is a sectional view showing the structure of an important part of the threading device. Fig. 5 is a structural diagram showing a planar form of a threading hook body. Fig. 6 is a perspective view of an important part of a cam portion for releasing the grip of the wire grip portion. Fig. 7 is a cross-sectional view near the arc groove portion of the cam portion. Fig. 8 is a cross-sectional view near a linear groove portion of a cam portion. Fig. 9 is a cross-sectional view showing a state where the threading device is at its initial position and the threading body reaches its rising end, and is a plan view of the state shown in Fig. 1. FIG. 10 is a cross-sectional view showing the middle of the operation of the threading device. FIG. 10 is a plan view showing the state shown in FIG. Fig. 11 is a cross-sectional view showing a state in which the operation of the threading device is in the final stage 'and the threading body reaches its lower end', and is a plan view of the state shown in Fig. 3. Fig. 12 is a structural view of the situation seen from the direction of the arrow x 1 2 in Fig. 11. Fig. 13 is a plan view showing a state in which the hook portion of the needle is inserted into the hook portion. Fig. 14 shows the standby state of the hook body. Diagram of the relationship between the clamp plate and the wire holding plate at the time. Fig. 15 is a diagram showing the relationship between the clamp plate and the thread holding plate when the hook body is threaded. Fig. 16 is a diagram showing the relationship between the clamping plate and the thread holding plate -23- (21) (21) 200401063 when the thread of the hook body is released. Fig. 17 is a graph showing the holding and releasing action of the wire holding portion and the height of the convex portion of the cam portion in a time series. [Description of Symbols] 1: Needle shaft arm, 2: Needle shaft, 4: Stopper, 4 A: Stopper, 6: Needle shaft threading portion, 7: Needle, 7A: Pin hole, 8: Threading body, 8 A : Rotating cam part, 8 B: Operating lever part, 1 0: Rotating pin, 1 1: Threading spring, 1 2: Threading lever spring, 1 3: Threading hook body, 1 4: Wire body, 16: Transmission gear, 16A: Snap pin, 1 7: Wire holding disc, 1 7 A: Convex part (cam passive), -24- (22) (22) 200401063 1 9: Wire holding spring, 2 0: Hook, 2 1: cam portion, 22: cam surface, 2 2 A: arc groove portion, 2 2 B: linear groove portion, 2 4 ·· up, 2 5: holding portion, 2 7: hook guide. -25