503283 A7503283 A7
五、發明說明（1 ) [發明領域] 本發明關於-種使用套口細線牽引機構來傳送 緊套口細線的鎖缝縫紉機。 [相關技術的描述] 已知有鎖缝㈣機，其有-針細線㈣槓桿（未顯示) 來傳送和拉緊通過針（未顯示）的針細線，該針與—個機琴 主軸聯結而上下往復運動，而且如第3圖所示，更有一個 延伸出一上套口細線2的上套口4’ 一個延伸出一下套口細 線6的-下套π8’以及-個傳送和拉緊上套口細線2和下 套口細線6的套口細線牽引機構1〇。 訂 上套口 4被支撐於一往復運動的套口載座(未顯示）， 套口載座被固定於-上套口軸12，該上套口軸與主轴聯結 而振盪，以致於上套口 4根據套口軸12的振盪而振盪。下 套口 8被支撐於一往復運動的套口載座8八，套口載座^八固 疋於下套口軸14，Τ套口軸14與主軸聯結而振| ,以致於 下套口 8根據套口軸μ的振盪而振盪。 16 經 濟 部 智 慧 財 產 局 員 工 消 費 合 作 社 印 套口細線牽引機構10包括多個固定式上細線導件 和18、一固定式下細線導件22、一固定於上套口軸12且與 之聯結振盪的右套口細線牵引部3〇、以及一固定於下套口 軸14且與之聯結振盪的左套口細線牽引部％。 右牵引部30有一在上部份用於上細線2的細線收納孔 34以及在中間部份用於下細線6的細線收納孔36 ^左 牵引部32有一在中間部份用於上細線2的細線收納孔38， 以及一在上部份用於下細線6的細線收納孔40。 本紙張尺剌财_ A7 經濟部智慧財產局員工消費合作社印製V. Description of the Invention (1) [Field of the Invention] The present invention relates to a lockstitch sewing machine that uses a sleeve thread pulling mechanism to transfer a sleeve thread. [Description of related technology] A lockstitch quilting machine is known, which has a needle thin thread ㈣ lever (not shown) to convey and tighten a thin thread of a needle through a needle (not shown), which is connected to a piano main shaft Reciprocating up and down, and as shown in Fig. 3, there is an upper sleeve opening 4 'extending an upper sleeve thin line 2 and a lower sleeve π8' extending a lower sleeve thin line 6 and a transmission and tightening Sleeve thin thread traction mechanism 10 for the upper and lower sleeve fine wires 2 and 6. The upper socket 4 is supported by a reciprocating socket socket (not shown), and the socket socket is fixed to the upper socket shaft 12, which is oscillated by coupling with the main shaft, so that the upper socket The port 4 oscillates according to the oscillation of the sleeve shaft 12. The lower socket 8 is supported by a reciprocating socket socket 88, and the socket socket ^ is fixed on the lower socket shaft 14. The T socket shaft 14 is connected to the main shaft to vibrate | so that the lower socket 8 Oscillates according to the oscillation of the sleeve axis μ. 16 The thin wire traction mechanism of the printed sleeve mouth of the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 10 includes a plurality of fixed upper thin line guides and 18, a fixed lower thin line guide 22, and an upper sleeve shaft 12 fixed and oscillating therewith. The right cuff thin wire traction part 30 and a left cuff thin wire traction part fixed to and oscillating with the lower cuff shaft 14%. The right pulling portion 30 has a thin line receiving hole 34 for the upper thin line 2 in the upper portion and a thin line receiving hole 36 for the lower thin line 6 in the middle portion. A thin-line receiving hole 38 and a thin-line receiving hole 40 for the lower thin line 6 in the upper portion. Size of this paper _ A7 Printed by Employee Consumer Cooperatives, Bureau of Intellectual Property, Ministry of Economic Affairs
A7A7
五、發明說明（3 ) [本發明解決的問題] 在上述的鎖缝縫紉機中，下套口軸14大致在主軸的 一旋轉中以如同針的上下運動的相同相位振盪，但是上套 口軸12相較於針和下套口軸14的相位，在相位上延遲2〇_4〇 度。因此，當針到達其下死點位置，左牽引部32到達其振 I運動的最左點（上死點），但是右牵引部30不會到達其振 盪運動的最右點（下死點）。 雖然右牽引部30與上套口軸12聯結而振盪，且左牽 引部32如之前所述與下套口軸14聯結而振盪，但上套口軸 12的振盪角度大於下套口軸14的振盪角度。結果，當右和 左牽引部30和32的振盪傳送和拉緊上和下細線2和6時，主 要是右牽引部30在作動。 經濟部智慧財產局員工消費合作社印製 參考第6圖，當縫針48到達其下死點時，針細線牝的 張力變成最大。隨著針48從下死點往上移，針細線邾因細 線張力減低而鬆弛，很快地形成一個圈環。當針料開始從 其下死點往上時，右牽引部3〇仍未到達其下死點，所以上 和下套口細線2和6維持在高張力。結果，在形成一個針細 線圈環的時刻，圈環被上和下細線2和6拉引而無法形成。 參考符號F代表上套口細線2張力，表下套口細線6張 力’ Η代表針細線46被張力F和G拉引的方向。 當針48更往上且右牽引部3〇通過下死點時，上和下 套口細線2和6的張力降低，允許拉引針細線46的力減弱。 然後，被拉引的針細線46以很快的速度鬆弛，因而形成較 大的針細線圈環。 所以’產生一個問題在於細線46圈環在很短的時間 内維持呈一致且穩定的尺寸，因為細線46圈環不是在針48 從下死點往上運動的初期形成，而是#右牽引部3Q轉向下 死點時快速形成。 而且，當針48從下死點位置往上走時，下細線6的高 張々造成-個縫釘前被—次拉緊的針細線結偷被拉住和 放鬆。所以’針細線46張力需要被保持报高，以便使結術 維持拉緊狀態。 所以’本發明的-目的在於提供_個鎖縫縫初機， -可提供致的縫釘’沒有因為_致的針細線圈環而漏掉 任何縫釘。 個鎖縫縫初機，其可 而不會造成針細線張 本發明之另一目的在於提供一 拉緊在一個縫釘前形成的針細線結， 力太兩。 [解決問題的方式] 用以述目的’本發明提供_種鎖縫縫初機 用场成遍及邊緣料鎖騎。在切明的― 初機包括：-個與機器主軸的旋轉同步：復動: 針；-針細線牵引部，對iii下彺復移動的 用 以傳送和拉緊針細線 眼的各自的上和下套口細線，二線2通過各自的套口 以形成縫釘，·上和下套口驅動機構，二: 供細線挖g動作，與針的上和“下套口提 線牵引機構，作用於上和 動同步；一套口細 作用於上和下套口細線，心 經濟部智慧財產局員工消費合作社印製 503283 五、發明說明（5) 、’田線。套口細線牽引機構有單個牽引部能夠做振盪運 。牵引部與套Π驅動機構聯結振盪，以便仙於上和下 細線。 以此、U冓’當針到達其下死點’而針細線在其最高 張力時，通過單個牽引部的套口細線亦在其最高張力。當 針從下死點往上移動時，牵引部亦減低上和下細線張力， 因而允許形成-個-致的針細線圈環。而且，在針從下死 點往上運動的時間之前，下套口細線不會造成拉引-個縫 釘前接緊的=細線結，因而以針細線的低張力拉緊針細線 ’·°另卜單個套口細線牵引部被用來取代用於傳統的鎖 縫縫幼機的兩個牽引部（右和左牵引部），造成以較少的可 動部件有較容易的調整操作。 在-特別的設置中’套口細線牽引機構有一右牵引 4 ’與下套口驅動機構聯結而振盪，以及一左牽引部，與 上套口驅動機構聯結而振蘯，在此處，左牵引部的行程量 大於右牽引部的行程量。以此結構，左牵引部主要影響到 傳迗和拉緊套口細線，因而減少傳統機器中發生的圈環形 成問題。另外，在針從下死點往上移動的時間之前，下套 口細線不會引拉在一個縫釘之前一次拉緊的針細線結，因 而以針細線的低張力拉緊針細線結。 [圖式簡要說明] 第1圖係用於本發明第一實施例之鎖縫縫紉機的主要 部份的示意圖。 第2圖係用於本發明第一實施例之鎖縫縫紉機的主要 I Aw ------Γ,---1 ------- (請先閱讀背面之注意事項再填寫本頁) 五、發明說明（6) 部份的示意圖。 湖第—_的—個例子的〜 係傳―—主要部份 第5圖係傳統式鎖縫縫紉機的再 份的示意圖。 似例子的主要部 第6圖係顯示針細線、上和下細線、'縫針、“ 和下套口之間的闕係的外觀圖。 ’’ σ 一上 [本發明之實施例的詳細描述] 參考第I圖，-鎖縫縫紉機包括 運動相聯結而上下往彳# /、主軸的凝轉 .下在復運動的縫針（未顯示）；-傳送和拉 並對有時稱為針細線）的針細線牵引横桿（未顯示）， 口、k過縫針的針細線料用；與主軸聯結而振盈的上套 12，與套口軸12連接之可振盪上套口載座4A，上 =口 4被支樓於載座从上且由此延伸出上套口細線2;與 轴聯結而振逢之下套口轴14;與套口_連接的可振盈 下套口載座8A，下套口 8被支擇於載座8八且由此延伸出下 套口細線6;以及套口細線牽引機構10，用以傳送和拉緊 、過上和下套口 4和8的上和下細線2和6。藉由針和上和下 ，口 4和8的結合的運動’針細線和上和下細線糾係互相 父織而形成縫釘。 一上套口軸12作為上套口驅動機構，以便提供針細線 的扫挖運動給上套口4’與針的上下往復運動同步。下 B7 五、發明說明（7 ) 2軸14作為一下套口驅動機構，以便提供針細線的备挖運 給下套口 8，與針的上下往復運動同步。 套、、、田線牽引機構1 〇包括多個細線導件丨6_26，以及 固定到下套口軸14的套口細線牽引部132,以便隨著轴14 振盈。在牽引部132的上端，用於細線2的細線收納孔38和 用於細線6的細線收納孔40係平行排列。 訂· 、由上套口細線供應源（未顯示）供應的上套口細線2通 過導件15、16、17,牽引部132上的孔％，然後通過導件19 和20,並通過上套口 4的套口眼42。此處，細線導件”被 固定在機器框架上，以便不被套口軸12的旋轉影響。以類 似的方式，由下細線供應源（未顯示）供應的下細線6通過 導件21、22，牽引部132上的孔40,然後通過導件24、26， 並通過下套口 8上的套口眼44。 牵引部132隨著下套口軸14振盪相同於針的相位。然 而，牵引部132可能以先於針的相位振盪。 隨著針到達其下死點而針細線在其尖峰張力時，隨 著牵引部132到達其上死點，上和下細線2和6亦在其尖峰 張力。當針從下死點往上移動時，由於牽引部132的移動， 連同上和下細線2和6的張力降低’針細線張力亦降低。此 張力降低允許形成一致的針細線圈環，造成一致的縫釘而 無縫釘遺漏。 而且，在針從下死點往上移動的時間，下套口細線6 不會造成拉引一個縫釘前一次拉緊的針細線結（第6圖中的 46a)。所以，.針細線的低張力允許拉緊針細線結。 本紙張尺度適用中國國家標準（CNS)A4規格（210x297公釐） A75. Description of the invention (3) [Problems solved by the present invention] In the above-mentioned lockstitch sewing machine, the lower sleeve shaft 14 oscillates in the same phase as the vertical movement of the needle during one rotation of the main shaft, but the upper sleeve shaft Compared with the phase of the needle and the lower sleeve shaft 14, 12 is delayed by 20-40 ° in phase. Therefore, when the needle reaches its bottom dead center position, the left traction section 32 reaches the leftmost point (top dead point) of its vibration I motion, but the right traction section 30 does not reach its rightmost point (bottom dead point) of its oscillating motion. . Although the right traction portion 30 is oscillated in connection with the upper sleeve shaft 12 and the left traction portion 32 is oscillated in connection with the lower sleeve shaft 14 as described above, the oscillation angle of the upper sleeve shaft 12 is greater than Oscillation angle. As a result, when the oscillations of the right and left traction portions 30 and 32 are transmitted and the upper and lower thin wires 2 and 6 are tightened, the right traction portion 30 is mainly activated. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Referring to Figure 6, when the needle 48 reaches its bottom dead point, the tension of the needle thread 牝 becomes maximum. As the needle 48 moves upward from the bottom dead point, the needle thread 邾 becomes loose due to the decrease in the tension of the thread, and a loop is quickly formed. When the needle material starts to go up from its bottom dead point, the right traction part 30 has not reached its bottom dead point, so the upper and lower sleeve mouth thin lines 2 and 6 are maintained at high tension. As a result, at the time of forming a needle loop, the loop is pulled by the upper and lower threads 2 and 6 and cannot be formed. The reference symbol F represents the tension of the upper thread 2 and the tension of the lower thread 6 ′ Η represents the direction in which the needle thread 46 is pulled by the tensions F and G. As the needle 48 moves further upward and the right pulling portion 30 passes through the bottom dead point, the tension of the upper and lower sleeve mouth threads 2 and 6 decreases, allowing the force to pull the needle thread 46 to weaken. Then, the drawn needle thin thread 46 is relaxed at a rapid speed, thereby forming a larger needle thin coil loop. Therefore, a problem arises in that the thin 46-ring loop maintains a consistent and stable size for a short period of time, because the thin 46-ring loop is not formed at the beginning of the movement of the needle 48 from the bottom dead point, but is #RIGHTdrawn Quickly formed when 3Q turned to the bottom dead center. Furthermore, when the needle 48 moves upward from the bottom dead center position, the high tension of the lower thin thread 6 causes a needle to be tightened a second time, and the tight thin needle knot is pulled and relaxed. Therefore, the tension of the needle thread 46 needs to be kept high in order to maintain the tension of the knot. Therefore, ‘the purpose of the present invention is to provide a lockstitch initial machine, and to provide a tailor-made staple’ without missing any staples due to the tailor-made fine loop loop. An initial seam stitching machine, which does not cause needle thread tension. Another object of the present invention is to provide a needle thread knot that is formed before a staple is tightened, with too much force. [Method for Solving the Problem] For the purpose of description, the present invention provides _ a kind of initial machine for lock seam sewing, which can be used to lock the bicycle around the edge material. The clear-cut initial machine includes:-one synchronized with the rotation of the machine's main shaft: double movement: needle;-a needle thread puller, which moves the upper and lower sides of the needle thread to reciprocate and move the needle thread Sleeve thin thread, two threads 2 pass through their respective sleeves to form staples, · Upper and lower sleeve driving mechanisms, two: for fine thread digging action, and needle upper and "lower sleeve lifting thread pulling mechanism, acting on The upper and lower movements are synchronized; a set of fine lines acts on the upper and lower fine lines. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Heart and Economics. Printed on 503283. V. Description of the invention (5). The traction unit can oscillate. The traction unit is connected to the sleeve Π drive mechanism to oscillate so that the upper and lower threads can be drawn. In this way, when the needle reaches its lower dead point and the needle thread is at its highest tension, it passes through a single traction. The thin thread of the sleeve is also at its highest tension. When the needle moves from the bottom dead point to the top, the traction portion also reduces the tension of the upper and lower thin threads, thus allowing the formation of a fine loop of the needle. Bottom dead point time before moving up, down The thin thread of the mouth does not cause pull-out-a thin thread knot tightened before the staples, so the needle thread is tightened with a low tension of the thin thread '. In addition, a single sleeve thread pull is used to replace the traditional lock The two traction parts (right and left traction parts) of the sewing machine make it easier to adjust the operation with fewer moving parts.-In a special setting, the "sleeve thin thread traction mechanism has a right traction 4" and a lower The sleeve driving mechanism is coupled to oscillate, and a left traction portion is coupled to the upper sleeve driving mechanism to vibrate. Here, the stroke of the left traction portion is greater than the stroke of the right traction portion. With this structure, the left traction portion It mainly affects the transmission and tightening of the thin thread of the sleeve, thus reducing the problem of loop formation in the traditional machine. In addition, the thin thread of the lower sleeve will not be pulled in a seam until the time when the needle moves from the bottom dead point to the top. The thin knot of the needle that was tightened before the nail was tightened, so the thin knot of the needle is tightened with a low tension of the needle. [Brief Description of the Drawings] FIG. 1 is a diagram of a main part of a lockstitch sewing machine according to the first embodiment of the present invention. Schematic diagram 2 is used for The main I Aw of the lockstitch sewing machine of the first embodiment of the present invention ------ Γ, --- 1 ------- (Please read the precautions on the back before filling this page) V. Description of the invention (6) The schematic diagram of the part. The first part of the lake — — of an example ~ series — the main part. Figure 5 is a schematic diagram of a traditional lockstitch sewing machine. Figure 6 shows the main part of the example. Needle thin line, upper and lower thin line, 'stitch,' and the appearance of the line between the lower sleeve. ”σ 一 上 [Detailed description of the embodiment of the present invention] Referring to Figure I,-The lockstitch sewing machine includes kinematics that are linked up and down toward 彳 #, and the main shaft is coagulated. ; -Transfer and pull and pull the crossbar (not shown) of the needle thread with needle thread (sometimes called needle thread), for needle and thread knitting needles; upper sleeve 12 connected to the main shaft and vibrating, and sleeve mouth The oscillating upper sleeve socket seat 4A connected to the shaft 12, upper = port 4 is supported by the building from above and thus extends the upper sleeve mouth thin line 2; coupled with the shaft to vibrate the lower sleeve shaft 14; and Sleeve_connected vibrating lower sleeve socket 8A, the lower socket 8 is selected from the carrier 8 and extends from the lower socket fine line 6; and the sleeve fine wire traction mechanism 10 is used for transmission and Tighten and pass the upper and lower thin lines 2 and 6 of the upper and lower sleeve openings 4 and 8. Through the combined movement of the needle and upper and lower, mouths 4 and 8, the needle thread and the upper and lower thread are woven together to form a staple. An upper sleeve shaft 12 serves as an upper sleeve driving mechanism so as to provide a sweeping movement of the needle thread to the upper sleeve 4 'in synchronization with the up and down reciprocating motion of the needle. Lower B7 V. Description of the invention (7) The 2 shaft 14 is used as the lower sleeve driving mechanism to provide the needle thread for the excavation and transportation to the lower sleeve 8. It is synchronized with the up and down reciprocating motion of the needle. The sleeve, line, and field line traction mechanism 10 includes a plurality of thin wire guides 6-26, and a sleeve fine line traction portion 132 fixed to the lower sleeve shaft 14 so as to vibrate with the shaft 14. At the upper end of the pulling portion 132, a thin-line receiving hole 38 for the thin line 2 and a thin-line receiving hole 40 for the thin line 6 are arranged in parallel. Order · The upper sleeve thread 2 supplied by the upper sleeve thread supply source (not shown) passes through the guides 15, 16, 17, and the holes in the traction section 132, then through the guides 19 and 20, and through the upper sleeve口 4 的 套 口 眼 42。 Port 4 of the mouth 42. Here, the thin wire guide "is fixed to the machine frame so as not to be affected by the rotation of the sleeve shaft 12. In a similar manner, the lower thin wire 6 supplied by the lower thin wire supply source (not shown) passes through the guides 21, 22, The hole 40 in the traction section 132 then passes through the guides 24, 26 and through the trocar eye 44 on the lower ferrule 8. The traction section 132 oscillates with the lower ferrule shaft 14 in the same phase as the needle. However, the traction section 132 may oscillate before the needle. As the needle reaches its bottom dead point and the needle thread is at its peak tension, as the traction portion 132 reaches its top dead point, the upper and lower threads 2 and 6 are also at their peak tension. When the needle moves upward from the bottom dead point, the tension of the upper and lower thin threads 2 and 6 is reduced due to the movement of the traction portion 132. The needle thread tension is also reduced. This tension reduction allows the formation of a consistent needle thin coil loop, resulting in Consistent staples are missed. Also, during the time when the needle moves from the bottom dead point, the thin thread 6 of the lower sleeve will not cause the thin thread knot that was tightened before pulling a staple (Figure 6). 46a). So, the low tension of the needle thread allows the needle thread to be tightened The paper size is applicable to China National Standard (CNS) A4 (210x297 mm) A7
在本發明的此貫施例中，單個套口細線牵引部i32被 用來取代用於傳統鎖縫縫劫機中的兩個細線牽引部（右和 左牵引部）。此造成用較少的可動零件來進行較容易的調 整操作。 現將參考第2圖說明本發明的第二實施例。除了左细 線牵引部232(其對應於第—實施例中的細線㈣部132)以 外，右細線牽引部230被提供，該牽引部23〇係固定於上套 口軸12，與主軸聯結而振盪。 、由一上套口細線供應源（未顯示）供應的上套口細線2 通過導件15、16，右牽引部23()的細線收納孔231 ,然後通 過左牽引部232的孔38，導件19和2〇，並通過上套口 4的套 眼42。以類似的方式，來自下套口細線供應源（未顯示） =下細線6通過導件21、22，牽引部加的孔4〇，然後通過 導件24、26，並通過下套口 8的套口眼料。 經濟部智慧財產局員工消費合作社印製 因為右牽引部230的振盪中心和孔洞23〗之間的距 離相車乂於左牽引部232的振盪中心和孔洞38和4〇之間的 為】所以左牽引部232的振盪行程大於右牽引部230 、振盪行耘。因此，上和下細線2和6被右牵引部傳送 和拉緊的量係充份小於左牵引部232造成的量（約小於一 半）所以，在這個實施例中，左牽引部232主要影響到傳 送和拉緊套口細線。此免除了發生在傳統機器中圈環的形 成]通亦即，對於形成一合適的針細線圈環，較佳的是 左牽引部的行程量大於右牵引部的行程量，更佳的是，若 左奪引部行程量是大於右牵引部行程量的兩倍。In this embodiment of the present invention, a single cuff thread drawing portion i32 is used instead of two thread drawing portions (right and left drawing portions) used in a conventional lockstitch sewing machine. This results in easier adjustment operations with fewer moving parts. A second embodiment of the present invention will now be described with reference to FIG. 2. In addition to the left thin line traction portion 232 (which corresponds to the thin line loop portion 132 in the first embodiment), the right thin line traction portion 230 is provided. The traction portion 23 is fixed to the upper sleeve shaft 12 and is connected to the main shaft. oscillation. 2. The upper sleeve thread 2 supplied from an upper sleeve thread supply source (not shown) passes through the guides 15, 16 and the thin thread receiving hole 231 of the right pulling portion 23 (), and then passes through the hole 38 of the left pulling portion 232 to guide Pieces 19 and 20, and the eyelet 42 through the upper mouthpiece 4. In a similar way, from the source of the lower sleeve thin line supply (not shown) = the lower thin line 6 passes through the guides 21, 22, the holes added by the traction part 40, then through the guides 24, 26, and through the lower sleeve 8 Set of eyesight. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs because the distance between the oscillation center of the right traction section 230 and the hole 23 is the distance between the oscillation center of the left traction section 232 and the holes 38 and 40.] The oscillating stroke of the traction portion 232 is larger than the right traction portion 230 and oscillates. Therefore, the amount of the upper and lower thin wires 2 and 6 being transmitted and tightened by the right traction portion is sufficiently smaller than the amount caused by the left traction portion 232 (about less than half). Therefore, in this embodiment, the left traction portion 232 mainly affects Sends and tightens the thin line of the sleeve. This avoids the formation of loops in conventional machines] That is, for forming a suitable needle loop, it is preferable that the stroke amount of the left traction part is greater than the stroke amount of the right traction part, and more preferably, If the stroke of the left traction section is greater than twice the stroke of the right traction section.
本紙張尺度_ (210 X 297 公釐） 503283 Μ 部 智 慧 員 工 消 費 ί 五、發明說明（9 ) 在第二實施例中，右牽引部230僅僅作用在上套口細 線2 ’但其可能除了用於細線2的孔洞231以外，形成另一 個用於下細線6的細線收納孔洞，以便同樣地作用於細線 6。 本發明不被限制在單針式鎖縫縫紉機，亦適用於兩 針式鎖縫縫紉機，以達成如同上述實施例所得到的相同的 效果。 本發明不限制在第一和第二實施例，各種變化和修 改可在本發明的範圍内做出。 [本發明的效果] 根據本發明的第一態樣，當針細線因針到達其下死 點而在其最高張力時，上和下細線亦因單個牵引部到達其 上死點而亦在最高張力。隨著針從下死點往上移動，單個 牵引部降低上和下細線的張力。此張力降低允許形成— -致的針細線圈環，造成—致的縫釘，而沒有任何的縫釘 二=針從下死點往上移動的時間，下套口細線 不會“引拉在一個縫釘之前一次拉緊的針細線結 可用低的針細線張力來拉緊針細線結。另外，單個 線牵引部被用來取代兩個用於傳統鎖縫縫 2 較容易的調整操作。 成乂^的可動部件來進行 根據本發明的特別設置，左牽引 :套口細線發生作用，免除傳统機器中 心而且’在針從下死點往上移動的時間.下套口細= 個 :釘 本紙張尺—用硫 503283 A7 五、發明說明（10) 會仏成引拉在一縫釘前一次拉緊的針細線結 細線張力拉緊針細線結。 因而以低針 s fL標號對照夹 2…上套口細線 4···上套口 4A…上套口載座 6···下套口細線 8···下套ϋ 8A···下套口載座 10…套口細線牵引機構 12···套口軸 14…下套口軸15、16、17、18、19、20、21、22···導件 24、26···導件 3 2…左細線牵引部 38、40···細線收納孔 44···套口目艮 4 8…針 230…右牵引部 232…左牽引部 30…右細線牽引部 34、36···細線收納孔 42·.•套口目艮 46a…結 132···細線牽引部 231 ···細線收納孔 1 I I I · I I--r I I I I--I I I I (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 13 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐）Size of this paper _ (210 X 297 mm) 503283 M Consumption of smart employees ί 5. Description of the invention (9) In the second embodiment, the right traction portion 230 acts only on the upper sleeve thin line 2 'but it may be used in addition to In addition to the hole 231 of the thin line 2, another thin line receiving hole for the lower thin line 6 is formed so as to act on the thin line 6 in the same manner. The present invention is not limited to a single-needle type lockstitch sewing machine, but is also applicable to a two-needle type lockstitch sewing machine to achieve the same effect as obtained in the above embodiment. The present invention is not limited to the first and second embodiments, and various changes and modifications can be made within the scope of the present invention. [Effect of the Present Invention] According to the first aspect of the present invention, when the needle thread is at its highest tension because the needle reaches its bottom dead point, the upper and lower threads are also at their highest because a single traction portion reaches its top dead point. tension. As the needle moves upward from the bottom dead center, a single traction section reduces the tension of the upper and lower thin threads. This reduction in tension allows the formation of a fine stitch loop of the needle, resulting in a consistent staple, without any staples two = the time for the needle to move upward from the bottom dead point, the thin thread of the lower sleeve will not be "pulled in" A thin thread knot that was tightened before a staple can be tightened with a low needle thread tension. In addition, a single thread puller is used to replace two easier adjustment operations for traditional lockstitch seams.乂 ^ movable parts to carry out the special setting according to the present invention, left traction: the sleeve thread works, eliminating the center of the traditional machine and 'moving the needle up from the bottom dead point. The lower sleeve is thin = pcs: nail book Paper ruler—Sulfur 503283 A7 V. Description of the invention (10) It will be pulled into a thin thread knot, which is tightened once before a staple. Tension of the thin thread knot will be tightened. Upper sleeve mouth 4 ... Upper sleeve mouth 4A ... Upper sleeve mouth seat 6 ... Lower sleeve mouth wire 8 ... Lower sleeve ϋ 8A ... Lower sleeve mouth carrier 10 ... Thin mouth traction mechanism 12 ··· Sleeve 14 ... Lower Sleeve 15, 16, 17, 18, 19, 20, 21, 22 ... Guide 24, 26 ... Guide 3 2 ... Left thread drawing portion 38,40 ... Thin thread storage hole 44 ... Set mouth 4 8 ... Needle 230 ... Right drawing portion 232 ... Left drawing portion 30 ... Right thin line Traction section 34, 36 ... Thin thread receiving hole 42 ... Set mouth 46a ... Knot 132 ... Thin thread traction section 231 ... Thin thread receiving hole 1 III I I--r III I--IIII ( Please read the notes on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 13 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)