200403370 玖、發明說明： 【發明所屬之技術領域】 本發明’係主要有關適用於多針式鏈狀拼縫機之針線 送線裝置。詳細言之，係在縫紉機臂部的左右大致中間位 置α有活動針線送線構件，其與在縫紉機臂部左端部支撐 成可上下往復運動之針架之上下往復運動同步連動而上下 往復搖動運動，以對於自線張力器送出後、通過固定針線 通路而被供給之針線，藉由活動針線送線構件的往復搖動 運動來進行該針線送出之控制並引導該針線朝安裝於針架 下端的針下降。 【先前技術】 此種縫紉機之針線送線裝置，不拘縫製布料的厚度、 所用針線的粗細、伸縮性等均經常維持良好的縫製狀態是 重要的，就達成此目的之手段而言，以往，一般是設置活 動針線，線構件的上下往復搖動運動量（行程）或該運動量 以及固定針線通路上的線孔的上下位置料變機構，藉由 料變機構，將該行程或線孔的上下位置按照縫製布：的 厚度等作變更操作’藉此增減針線供給路徑長度，控制 線的送出量。 並且，上述習知針線送線裝置，係、藉由可變機構調整 七線送出能不拘縫製布料的厚度、針線之種類、伸縮 性等的變化，均經常維持適當、良好的線張力、縫製狀態 、’ ’哉軚硬、伸縮性較低的一般布料為縫製對象時，針 線不會產生鬆他’而獲得具有適當緊度的完工良好的縫製 200403370 品 不過，近年來微細纖維布等 非常柔軟且富有伸縮性的材：=以-種由組織 時，若仍然使用上述習知針==布料作為縫製對象 狀態的針線及線鉤線所形成 I、崩緊 v„, L v風的接縫即繞在針板的爪上，難 二二脫離’故不僅於布料進給上出現障礙，導致縫製 不良，並且縱然接縫從爪上脫離，在針穿過布料到達下死 點時，呈端緊狀態的針線會將布 ΠΓ 4+ ό πτ χε ^ 丨了寸Π下方推擠，於此狀態 線上^ H昇^丨線及插穿且I繞在針 線釣線將布料的針貫穿部分往下拉的現象，而過強 束緊縫製處的布料部分，使縫卢 起’而降低縫製品質。1處的布料部分形成棋形隆 亦即，由於習知針蝮奘罟 曰口士士 卞線裝置所具備之可變機構到底不過 疋有在以一般布料作為縫製對象之情形下，於可維持線 張力、縫製狀態範圍内可調整針線送出量的機構，因此、： 该機構所控制之針線送出量的範圍’並不是避免在以如上 述微細纖維布等由組織非常柔軟且富有伸縮性的材質所構 成的布料情形下所發生的如上述縫製不良或呈棋形隆起所 j縫製品質降低的足夠範圍，無法避免呈拼形隆起等縫 製品質之降低。 【發明内容】 的裝置，其目的在於 一般之布料為縫製對 而且即使以如微細纖 本發明係有鑑於上述問題而提出 提供一種縫紉機之針線送線裝置，以 象日守’此使該布料具有適當的緊度， 200403370 維布般由組織非常錄且冑㈣縮性㈣請構成之布料 作為縫製對象時，仍能將線張力保持在不產生縫製不均之 ?當程度，並能適當控制針線的送出#，避免布料進給之 障礙所造成的縫製不良或過度束緊所造成的縫製品質 低。 、 為了達成上述目的，本發明申請專利範圍第丨項之縫 紉機之針線送線裝置，係於左端部將針架支撐成可上下往 復運動之縫紉機臂部之左右大致中間位置之前面部，設有 與針架之上下往復運動同步連動而上下往復搖動運動1活 動針線送線構件；於該活動針線送線構件之前端部及長邊 方向之大致中間部，形成有第丨針線送線孔及第2針線送 線孔，以將自線張力器送出並通過固定針線通路而供給之 針線朝安裝於針架下端之針進行下降引導；其特徵在於： 於該活動針線送線構件上之第丨針線送線孔與第2針線送 線孔之間設有具備第3針線送線孔之針線引導部，該第3 針線送線孔，係用來將在該等兩針線送線孔之間延伸之針 線部分在其向下彎曲之狀態下送出並引導。 依據具有上述特徵的本發明縫紉機之針線送線裝置， 引導通過固定針線通路而供給的針線依序通往形成於活動 針線送線構件的第1至第3針線送線孔並朝針下降，藉此 增加保持通往該活動針線送線構件的第1至第3針線送線 孔的針線部分的全長，並且使該長的針線部分之中途向下 彎曲，因此，可將線張力器賦予針線的送線摩擦阻力保持 於使線張力均勻的適當值，並且在活動針線送線構件由上 200403370 動時，能增強抵抗線張力器所賦予摩擦阻力的 、，’使針線送線量越往下方越大。據此，以組織 y且伸縮性較低的—般布料作為縫製對象時，藉由與習 *鬆弛的適當=二 出量，能使針線具有 纏… 的縫製’並且即使以如微細 義維布般由組織非常柔軟且富 料作為縫制料备* 田们甲饰性的材貝所構成之布 =2·縫w象時，仍可使針貫穿布料到達τ死點時的針 产端;以及針自下死點向上死點上昇時的針線部分不會極 繞在針板的爪上的紗圈順利脫離爪，並且能消除 ’避免布料的縫製處呈拱形隆起等縫製品質之降低，該過 布H:起因於在針自上方貫穿布料時針線將貫穿處的 …刀向下推擠，或起因於針自布料下方向上死點上昇 寺十4及纏在其上的線鉤線將布料的針貫穿部分提起。 因此’依據本發明’對於一般布料乃至於如微細纖維 及由非常柔軟且富有伸縮性的材f所構成之布料的性質 不同的廣大範圍的布料，能經常獲得高品質之縫製品。 於此，就該針線引導部的第3針線送線孔而言°°，口要 使^第1針線送線孔與第2送線孔之間延伸的針線部向 下彎曲即可，不過，如申請專利範圍帛2項所記載，最好 是將在第1針線送線孔與第2針線送線孔之間延伸的針線 部分在其向下f曲成左右大致對稱的v字形之狀 並引導。 又，在上述構造的本發明縫紉機之針線送裝置中，藉 200403370 由在活動針線送線構件設置具 導部來確保針線之送出量控制不線送線孔的針線引 同等大小的送出量控制範圍，而使針確保與此 上壁部之上方，於此突出的針架的上端部 往復運動範圍設定在不向上突出二 :圍並：：採用此種構成，可謀求針架長度之 容易實現縫製的高速化，亦可藉由將縫勿機臂部 饴閉來防止漏油、塵埃侵入。 雖然不必於針架之上端部設f 、卜 哪1 °又罝針線通路，但針線的上 下運動範圍，亦可如申諳真剎鉻圈势 T月寻利耗圍第4項所载發明，設定 於在針架上昇㈣至上死點時，針架之上端部向上突出縫 匆機臂部的上壁部分的範圍。於此情形下，由於可發揮自 針架上端部將長時間連續縫製所產生的滑動熱排入大氣中 ，散熱機能’故可防止針架、針變得異常高溫、縫勿機臂 部内充滿熱所造成的縫製作業之不便。 又，於上述構成的本發明縫紉機之針線送線裝置中， 如申請專利範圍第5項所載發明，該活動針線送線構件上 的針線引導部’其上下位置最好能自由變更並固定，使形 成於其上的第3針線送線孔的位置可上下調節。於此情形 下’可藉由變更針線引導部的上下位置來進一步增佳活動 針線送線構件的上下往復搖動運動所產生之送出量之控制 範圍。 又，於上述構成的本發明縫紉機之針線裝置中，如中 丨fe圍第6 J頁所載發明，將該活動針線送線構件之的 上下搖動運動範圍設定成’針架在上死點時自第i針線送 線孔經第2及第3針線送線孔至針架下端的針為止的針線 長度比針架在下死點時自第i針線送線孔經第2及第3針 線送線孔至針架下端的針為止的針線長度還長，藉此設定 ’以如微細纖維布般由組織非常柔軟且富有伸縮性的材質 所構成之布料作為縫製對象時，即使未利用可變機構調整 友的送出里’亦能使針貫穿布料到達下死點時的針線部 :及，自下死點向上死點上昇時的針線部分不會極度繃$ _ 是使4等針線部分具有鬆弛度，使布料進給時的接縫 順利脫離爪’並消除針線及線鉤線的過度束緊而確實避免 布料縫製處呈拱形隆起等縫製品質之降低。 再者，於上述構成的本發明縫紉機之針線送線裝置中 ’如:請專利範圍第7項所載發明，於上述活動針線送線 構件則端的第1針線送線孔、與針或針線送線導件（固定於 針或縫初機臂左端部上下大致中間位置）之間延伸的針線供 給路徑之中途位置，設有針線承座，以僅在活動針線送線 _ 構件向下搖動時播住位於第i針線送線孔與第3針線送線 孔之間的針線部分，使該針線部分成為向上彎曲之姿勢， 藉此可更增加針在下死點附近時的針線的鬆弛量，因此， 可更確實防止以如微細纖維布般柔軟且富有伸縮性的布料 作為縫製對象時的縫製品質之降低。 於此，針線承座，如申請專利範圍第8項所載發明， 一上下位置最好可變更並固定。藉由如此變更固定針線承200403370 2. Description of the invention: [Technical field to which the invention belongs] The present invention is mainly related to a needle thread feeding device suitable for a multi-needle chain stitch sewing machine. In detail, there is a movable needle thread feeding member at approximately the middle position α of the left and right sides of the arm of the sewing machine, which is synchronized with the up and down reciprocating movement of the needle frame supported by the left end of the sewing machine arm so as to be able to reciprocate up and down to reciprocate up and down. For the needle thread that is supplied through the fixed needle thread path after being sent out from the thread tensioner, the needle thread is controlled by the reciprocating shaking motion of the movable needle thread feeding member and the needle thread is guided toward the needle installed at the lower end of the needle holder. decline. [Prior technology] It is important that the sewing thread feeding device of this sewing machine always maintains a good sewing state regardless of the thickness of the sewing fabric, the thickness of the needle thread used, and the stretchability. In terms of the means to achieve this, in the past, generally It is a material change mechanism that sets the movable needle thread, the up and down reciprocating shaking movement (stroke) of the thread member or the movement amount and the up and down position of the thread hole on the fixed needle thread path, and the stroke or the up and down position of the thread hole is sewn according to the material change mechanism. Cloth: Change the thickness, etc., to increase or decrease the length of the needle thread supply path, and control the amount of thread sent out. In addition, the above-mentioned conventional needle thread feeding device is capable of adjusting the seven-thread feeding through a variable mechanism to irrespective of changes in the thickness of the fabric, the type of needle thread, and the elasticity, etc., and it always maintains an appropriate and good thread tension and sewing state. , '' When hard, low-stretch general fabrics are sewn, needles and threads will not loosen ', and you can obtain sewing products with proper tightness and good finishes. 200303370 Goods in recent years, however, microfiber cloths are very soft and Elastic material: =-If the conventional needle is still used when weaving with a kind of fabric == The fabric is formed by the needle thread and thread hook thread in the state of sewing I, collapsed v „, L v The seam of the wind is Winding around the claws of the needle plate, it is difficult to break off. Therefore, it not only causes obstacles in the feeding of the fabric, resulting in poor sewing, but even if the seams are detached from the claws, the needles are tight when the needle passes through the fabric to the bottom dead point. The state of the needle thread will push the cloth ΠΓ 4+ ό πτ χε ^ 丨 under the inch Π, on this state line ^ H rise ^ 丨 thread and insert and I wrapped around the needle thread fishing line will pull the needle through part of the fabric down Phenomenon while Tighten the fabric part at the sewing place to make the stitches rise and reduce the quality of sewing. The fabric part at one place forms a chevron shape, that is, due to the variable mechanism provided by the conventional needle-stitch threading device In the end, however, there is a mechanism that can adjust the needle thread delivery amount within the range of maintaining thread tension and sewing state when using general fabrics as sewing objects. Therefore, the range of needle thread delivery amount controlled by this mechanism is not to be avoided. In the case of a cloth made of a very soft and stretchy material such as the microfiber cloth described above, a sufficient range of sewing quality degradation such as the above-mentioned poor sewing or chess-like bulge occurs, which can not be avoided. Deterioration of sewing quality such as bulge. [Summary of the invention] The purpose of the device is that the general fabric is a sewing pair and even if it is made of microfiber, the present invention proposes to provide a needle thread feeding device of a sewing machine in view of the above problems. Shou 'this makes the fabric have a proper tightness, 200403370 The fabric is like a fabric that is very recorded and shrinkable. As a sewing object, the thread tension can still be maintained to an extent that does not cause sewing unevenness, and the needle thread can be appropriately controlled # to avoid sewing caused by poor sewing or excessive tightening caused by the obstacle of fabric feed Low quality. In order to achieve the above-mentioned object, the needle thread feeding device of the sewing machine according to the scope of application of the present invention is the front face of the sewing machine arm which is supported by the left end portion so as to be able to reciprocate up and down. A movable needle thread feeding member is provided in synchronism with the up and down reciprocating movement of the needle frame. A movable needle thread feeding member is formed. A first needle thread feeding hole is formed at the front end portion of the movable needle thread feeding member and approximately the middle portion in the long side direction. And the second needle thread feeding hole for lowering and guiding the needle thread sent from the thread tensioner and supplied through the fixed needle thread path toward the needle mounted on the lower end of the needle frame;丨 Between the needle thread feeding hole and the second needle thread feeding hole, there is a needle thread guide with a third needle thread feeding hole. The third needle thread feeding hole is used for The needle line portions extending between these two needle thread take-out hole and the guide is bent downwards in its state. According to the needle thread feeding device of the sewing machine of the present invention having the above characteristics, the needle thread supplied through the fixed needle thread path is guided sequentially to the first to third needle thread feeding holes formed in the movable needle thread feeding member and descends toward the needle. This increase maintains the full length of the needle thread portion leading to the first to third needle thread feeding holes of the movable needle thread feeding member, and bends the long needle thread portion halfway down. Therefore, a thread tensioner can be given to the needle thread. The thread-feeding frictional resistance is maintained at an appropriate value that makes the thread tension uniform, and when the movable needle-thread thread-feeding member is moved from the upper 200403370, it can increase the resistance to the frictional resistance provided by the thread tensioner. . According to this, when using ordinary fabrics with a low-yield structure as the sewing object, the appropriate amount of slackness and slackness can be used to make the needle thread sew with sew ... It is generally made of very soft tissue and rich material as sewing material. * When the cloth made of Tian Men's decorative material is 2 · witch like, the needle can still pass through the cloth to the needle end when it reaches τ dead point; And when the needle rises from the bottom dead point to the top dead point, the needle thread portion will not be smoothly detached from the claw on the claw of the needle plate, and it can eliminate the degradation of the sewing quality such as avoiding arched bulge at the sewing place of the fabric. The cloth passing H: It is caused by the needle pushing the needle thread when the needle passes through the fabric from above ... Lift the needle through the needle. Therefore, according to the present invention, high-quality sewn products can often be obtained for a wide range of fabrics having different properties such as general fabrics and even microfibers and fabrics composed of a very soft and elastic material f. Here, as far as the third needle thread feeding hole of the needle thread guide is concerned, it is necessary to bend the needle thread portion extending between the first needle thread feeding hole and the second thread feeding hole downward, but, As described in item 2 of the scope of the patent application, it is preferable that the needle thread portion extending between the first needle thread feeding hole and the second needle thread feeding hole is bent downward f into a left-right substantially symmetrical V-shape and guide. In addition, in the needle and thread feeding device of the sewing machine of the present invention having the above-mentioned structure, a guide portion is provided on the movable needle and thread feeding member by 200403370 to ensure that the amount of needle thread is controlled. To ensure that the needle is above the upper wall, the upper and lower end of the needle holder protruding from the reciprocating motion range is set to not protrude upwards. 2 :: and :: With this structure, the length of the needle holder can be easily sewn. It can also prevent the leakage of oil and dust by closing the arm of the sewing machine. Although it is not necessary to set f, 1 ° and the needle thread path on the upper end of the needle frame, the up and down motion range of the needle thread can also be used as the invention contained in the fourth item of Shen Zhen Zhencha Chrome Circle Potential, It is set in a range where the upper end portion of the needle frame protrudes upward from the upper wall portion of the sewing machine arm when the needle frame rises to the top dead point. In this case, since the upper end of the needle holder can be used to release the sliding heat generated by long-term continuous sewing into the atmosphere, the heat dissipation function can prevent the needle holder and the needle from becoming abnormally hot, and the sewing machine arm can be filled with heat. Inconvenience caused by sewing operations. Furthermore, in the needle thread feeding device of the sewing machine of the present invention having the above-mentioned configuration, as in the invention set forth in the scope of application for patent 5, the needle thread guide portion 'on the movable needle thread feeding member can preferably be freely changed and fixed. The position of the third needle thread feeding hole formed thereon can be adjusted up and down. In this case, it is possible to further increase the control range of the amount of feed produced by the up-and-down reciprocating movement of the needle thread feeding member by changing the vertical position of the needle thread guide. Furthermore, in the needle and thread device of the sewing machine of the present invention having the above-mentioned configuration, as described in the invention on page 6J of the invention, the range of vertical movement of the movable needle thread feeding member is set to 'when the needle holder is at the top dead center' The length of the needle thread from the i-th needle thread feeding hole through the second and third needle thread feeding holes to the needle at the lower end of the needle frame is longer than when the needle frame is at the bottom dead point from the i-th needle thread feeding hole through the second and third needle threads The length of the needle thread from the hole to the needle at the lower end of the needle holder is still long. This allows you to set 'When using a fabric made of a very soft and stretchy material like a microfibre cloth as the sewing object, even if the variable mechanism is not used for adjustment You can also make the needle penetrate the fabric when the needle reaches the bottom dead point: and the needle thread part will not be extremely stretched when it rises from the bottom dead point to the top dead point. The seam when the fabric is fed is smoothly separated from the claws, and the excessive tightening of the needle thread and the thread hook thread is eliminated, and the degradation of the sewing quality such as an arched bulge at the fabric sewing place is surely avoided. Furthermore, in the needle thread feeding device of the sewing machine of the present invention configured as described above, for example, the invention described in item 7 of the patent scope, the first needle thread feeding hole at the end of the movable needle thread feeding member, and the needle or needle thread feeding Thread guide (fixed to the middle of the upper end of the needle or the left end of the sewing machine arm at approximately the middle position) The middle position of the needle thread supply path is provided with a needle thread holder to broadcast only when the movable needle thread is sent downward. By holding the needle thread portion between the i-th needle thread feeding hole and the third needle-thread feeding hole, the needle thread portion is bent upward, thereby increasing the amount of slack of the needle thread when the needle is near the bottom dead center. Therefore, It is possible to more surely prevent a decrease in the sewing quality when a soft and stretchy cloth like a microfiber cloth is used as a sewing target. Here, the needle and thread socket, like the invention contained in item 8 of the scope of application for a patent, preferably has an up and down position that can be changed and fixed. By changing the fixed needlework
11 200403370 详減斜Γ位£亦可错調整針線部分的向上f曲的長度來 …相鬆弛量’謀求縫製品質的進一步提高。 再者’㈣上述針線承座之設置，係如申請專利範圍 針線部Λ載發明’於此針線承座形成有段差，以在複數條 二：':中，將線釣越早進入針線紗圈之側在越高的位置 “，猎此’即使線鉤進入複數條針 二線送線構件到達下降位置時的複數條針線部 軟电織的:斗呆持大致均等，故可在縫製如微細纖維布般柔 之降:的布枓時，確實防止縫製處呈拱形隆起的縫製品質 【實施方式】 圖^適用本發明的3針式鏈狀拼縫機的全體前視圖 =疋顯示針線送線裝置主要部分的立_ :::部的放大前視圖。於此各圖中，1是縫匆機臂部2 二：機床一，於縫匆機臂部1的左端部，將針架3支撐 =插穿'支撑於該縫内的堪動主轴(圖帽 於周知，故省略詳細說明) 鄰接設有㈣機構(由 針架ΓΓΓ 3 Γ端部透過針夹4安裝三支針5,並且該 氣。、了在復運動範圍設定為即使該針架3在上昇運 部死二之狀態下’其上端部仍不會向上突出縫紉機臂 部的上壁部分的範圍。又，於縫匆機2左端部收 ——十板及線鉤、布料進給機構等縫製 故省略詳細說明）。 Η由於周知， 12 20040337011 200403370 Reduce the oblique Γ position in detail. It is also possible to adjust the length of the upward f-curve of the needlework part by mistake ... to achieve a further improvement in sewing quality. Furthermore, '㈣ the above-mentioned needle thread seat is provided, such as the invention of the patent application, the needle thread part Λ contains the invention'. Here, a step difference is formed in the needle thread seat in order to enter the needle thread loop earlier in the plural two: ': The side is at a higher position ", hunting for this' even if the thread hook enters the plurality of needles and the second thread feeding member reaches the lowered position, the plurality of needle and thread parts are soft and electro-woven: the buckets are roughly equal, so they can be sewn as fine Fiber cloth-like soft drop: When the cloth is quilted, the sewing quality can be prevented from arching at the sewing place. [Embodiment] Fig. ^ Overall front view of a 3-needle chain stitcher to which the present invention is applied = 针 shows needle feed The enlarged front view of the main part of the threading device: _ :::. In each of these figures, 1 is the sewing machine arm 2 2: The machine tool 1, at the left end of the sewing machine arm 1, the needle holder 3 Support = insert through the movable main shaft supported in this slot (the cap is well known, so detailed description is omitted) Adjacent is provided with a ㈣ mechanism (the end of the needle holder ΓΓΓ 3 Γ is used to install three needles 5 through the needle clamp 4, and The Qi is set in the complex motion range even when the needle holder 3 is dead in the ascending and descending part. The upper end part still does not protrude upward from the upper wall part of the arm of the sewing machine. Also, it is retracted from the left end of the sewing machine 2-ten plates and thread hooks, fabric feeding mechanism, etc., so detailed explanation is omitted. Known, 12 200403370
於上述縫切機臂部1的左右大致中間位置的前面部設 有活動針線送線構件8，其藉著與上述驅動主軸連動的針 、、二、、友軸6的正反驅動旋轉，透過針線送線台7，與針架3 的上下彺復運動同步，以該針線送線軸6為支點上下（箭號 方向）往復搖動運動。於此活動針線送線構件8右側的 縫、、刀機臂部1的前面部配置有與針線供油裝置12安裝成-體^固定針線通路13、及三個可變針線通路17。該針線供 妒置12係彳欠4個線張力器（可對3條針線9及丨條線 鉤線ίο料送出摩擦阻力，以個別調整線張力）ιι送出並 引導的4條線中有3條針線9以聚集狀態通過，並於該等 針線9塗佈潤滑油，該等三個可變針線通路η，係能將通 ^此固定針線通路13後的三條針線9插穿且在線通路安裝 疋連叹於固疋針線通路丨3 )上之位置能分別透過長 孔15及螺、絲16沿上下（箭號ul-dl方向）變更並固定。 於上述活動針線送線構件8的前⑷端及長邊方向, 大致中間部’分別形成有排在同—高度之3個第ι針線每 線孔8A及3個第2針線送線孔8β，以將自線張力器11 ^ =並通過S1定針線通路13及可變針線通路Η而被供給引 導之3條針線9,通過固定在縫勿機臂部i左端部的上下 f致中間位置的針線送線導件18上所形成的針線孔18a並 朝^針5進行下降引導；且於此第Μ線送線孔^與第 古 線孔8B之間的活動針線送線構件8部分，將形成 〇 ^ 個第3針線送線孔8C的針線引導部 設成—體’該第3針線送線孔8C，係用來將該等兩針A movable needle thread feeding member 8 is provided on the front portion of the sewing machine arm portion 1 at approximately the left and right intermediate positions, and is rotated by the forward and reverse driving of the needle, two, and friend shafts 6 which are linked with the driving spindle, and penetrates. The needle thread feeding table 7 is synchronized with the vertical movement of the needle holder 3, and the needle thread feeding shaft 6 is used as a fulcrum to swing up and down (in the direction of the arrow). At the slit on the right side of the movable needle thread feeding member 8 and the front portion of the knife arm portion 1, a fixed needle thread passage 13 and three variable needle thread passages 17 which are mounted to the needle thread oil supply device 12 are arranged. This needle thread is used to set up 12 series and owe 4 thread tensioners (can feed friction resistance to 3 needle threads 9 and 丨 thread hooks to adjust the thread tension individually). 3 of 4 threads sent and guided The needle threads 9 pass in an aggregated state, and the needle threads 9 are coated with lubricating oil. The three variable needle thread paths η can pass through the three needle threads 9 that pass through the fixed needle thread path 13 and be installed in the line path. I am sighed on the solid needle thread path 3) The position can be changed and fixed in the up and down direction (arrow ul-dl direction) through the long hole 15 and the screw and wire 16 respectively. At the front end and the long side direction of the movable needle thread feeding member 8, approximately three middle portions of the first needle thread 8A and three second needle thread feeding holes 8β are formed at the same height, The three needle threads 9 which are supplied and guided by the thread tensioner 11 ^ = through the S1 fixed needle thread path 13 and the variable needle thread path, are fixed at the upper and lower f of the left end of the sewing machine arm i to the middle position. The needle thread hole 18a formed on the needle thread guide 18 is guided downward toward the needle 5; and here, the movable needle thread thread feeding member 8 between the M thread thread hole ^ and the ancient thread hole 8B, The needle thread guide forming the third needle thread feeding hole 8C is provided as a body. The third needle thread feeding hole 8C is used for the two needles.
13 200403370 線送線孔8A、8B間延伸的針線部分9a在其向下彎曲成左 右大致對稱的V字形之狀態下送出並引導。 又，於上述活動針線送線構件8前端的第丨針線送線 孔8A與針線送線導件18的針線孔18a之間延伸的針線供 給路徑的中途位置設有圖2所示之針線承座19。此針線承 座19具有3個線支撐部19a，該等3個線支㈣w'，係 僅在上述可動針線送線構# 5向下（d $向）搖動時播住位 於第1針線送線孔8A與第3針線送線孔8C之間的3條針 線部分9b，並分別使其等呈向上彎曲之姿勢。&，此針線 承座19,其於針線送線導件18上端部分上之位置能透 過長孔20及螺絲21上下變更並㈣。如圖4所示，此針 線承座19的3個線支撑部19a上所形成之段差，係線鉤最 早進入針線紗圈的右侧是最高，中間、左侧依序降低。 使用具備上述構成的針線送線裝置的3針式鏈狀拼縫 機，首先就縫製-般的布料的情形加以說明。於此情形下 ’按照縫製布料的厚度、針線9的粗細、伸縮性等預先沿 上下方向（ul-dl方向）調整可變針線通路17的位置，並以 3條針線9的送出量成適當之方式調整針線供給路徑的長 度。亦即’調整成針架5上昇至上死點時的針線供給路徑 /、十采3下降至下死點時的針線供給路徑長度大致相 等。 藉由如此調整運用，將線張力器Η所產生的送出摩擦 阻力以維持適當的線張力之方式調整後才送出並引導的3 條針線9 ,係按固^針線通路l3—可變針線通路17—活動 14 200403370 針線送線構件8的第2針線送線孔犯—第3針線送線孔％ —第i針線送線孔8A—針線送線導件18的針線孔W的 順序通過，並分別朝3支針5被下降引導。 若於此狀態下，針架3及針5被上下往復驅動運動， 活動針線送線構件8即與其同步，以針線送線轴6為中心 ’ j下（箭號u-d方向）往復搖動運動，邊良好地維持線張 力器11所產生的線張力及縫製狀態，邊以不施加鬆他或過 度張力於3條針線9之方式適當控制針線9的送出量，不 拘縫製布料的厚度均可進行既定的縫製。 其次，就縫製如微細纖維布般由組織非常柔軟且舍 伸縮性的材質所構成之布料之情形加以說明。於此情:下 ’通過固定針線通路13及可變針線通路π供給的二線9 形成於㈣針線送線構件8的第2針線送線孔 m針線送線孔8C及第i針線送線孔8a， 線導件is的針線孔18a，並向針5被下降引導。因此，保 持於該活動針線送線構件8的針線9部分的全 '、 字：r線9部分的中途透過第3針線送線二大二 故將線張力器11賦予針線9之送出摩擦阻 :呆持於使線張力不會發生縫製不均的適當值， =線送線構件8與針架3及針5的下降移動連動，而自 :5所不之上昇位置向圖6所示之下降位 ①自可變針線料17至活動針線 運動時 線送__L是越下方:大線 8B朝向第3針線送線孔8C的針線部分9&之姿勢逐漸向： 15 200403370 ，抵抗線張力器U賦予之送出摩擦阻力的針線送出力^ 下方越強，以及③在活動針線送線構件8搖動至圖6的下 降位置的稍上方位置的時點’第3針線送線孔3C與第！針 線送線孔3A㈣針線部分9b被料承座19的線支揮部 ⑽擋住，自此狀態起，活動針線送線構件8搖動至圖6 的下降位置’隨此搖動’被擋住的針線部分此改變成向上 f曲之姿勢，抵抗線張力！！ U所產生送出料阻力的針線 送出力f進一步增強，因此，針線送出量是越往下方越大 〇 由於活動針線送線構件8所產生的針線9送出量是越 ^ 越大故即使以如微細纖維布般由組織非常柔軟且 富有伸縮性的材質所構成之布料作為縫製對象時，仍能使 針5貫穿布料5到達下死點時的針線部分、及針5自下死 點向上死點上昇時的針線部分不極度端緊，而具有些許的 鬆弛度’故能使在布料進給時繞在針板的爪上的紗圈順利 脫離爪’並且能消除過度束緊，避免布料的縫製處呈拱形 隆起等縫製品質之降低，該過度束緊，係起因於在針5自 上方貫穿布料時針線將貫穿處的布料部分向下推擠，或起 因於針5自布料下方向上死點上昇時針線及纏在其上的線 釣線將布料的針貫穿部分提起。 又，上述活動針線送線構件8前端的第丨針線送線孔 8A、與針線送線導件18的針線孔咖之間延伸的針線供給 路徑中途位置上的針線承座19的3個線支撐部心，係如 圖4所示形成有右側（線鉤進入針線紗圈最早之侧）最高且 200403370 中間、左側依序降低的段差，故即使線鉤進入形成於布料 下方的3條針線紗圈的時點是越左側之紗圈越晚， 送線構件8到達下降位置時的3條針線9的鬆他 日U均4 ’故縫製如微細纖維布等般柔軟組織布料 夺，月b確實防止縫製處呈拱形隆起等縫製品質之降低。 又，上述實施形態中，雖已就 不過，如圖7…所示，即使是未二:： :二=針式鍵狀拼縫機，仍能藉由前述①、②的作用 使侍㈣針料線構件8越 Μ ，防止縫製如微f, 針線迗出量就越大 之降低。 纖維布核柔軟組織布料時的縫製品質 順便提-下，本”人H 請人所試製的實際3針式鍵狀拼縫機為=之 座及無針線承座之各個情形，測定針 十線承 左右2支針的針線長度A、及針架到達下 ^點時供至 支針的針線長度B，所獲得之結果如表/供至左右2 又，各針線長度A及B，係如圖9所_ 2所示。 給路控之各針線通路間、針線送線孔 不’形成針線供 尺寸①至⑥的總和。又，表卜2中數=定點間的 17 200403370 表1(有針線承座之情形） 針 架 上 死 點 測定點 ① ② ③ ④ ⑤ ⑥ A 左針線 18 55 25 24 80 125 327 右針線 26 44 25 23 75 120 313 針 架 下 死 點 測定點 ① ② ③ ④ ⑤ ⑥ B 左針線 18 73 36 30 36 158 351 右針線 25 67 36 29 39 152 34813 200403370 The needle thread portion 9a extending between the thread feeding holes 8A and 8B is fed out and guided in a state where it is bent downward into a substantially symmetrical V shape. In addition, a needle thread receiving seat shown in FIG. 2 is provided at a midway position of the needle thread supply path extending between the needle thread feeding hole 8A at the front end of the movable needle thread feeding member 8 and the needle thread hole 18 a of the needle thread feeding guide 18. 19. This needlework socket 19 has three thread support portions 19a, and these three thread supports ㈣w 'are broadcast only when the above-mentioned movable needlework thread feeding mechanism # 5 is swung downward (d $ direction). The three needle-thread portions 9b between the hole 8A and the third needle-thread feeding hole 8C are each bent in an upward posture. & The position of the needle thread receiving base 19 on the upper end portion of the needle thread feeding guide 18 can be changed up and down through the long hole 20 and the screw 21. As shown in Fig. 4, the step difference formed on the three thread support portions 19a of the needle thread socket 19 is the highest when the thread hook enters the right side of the needle thread loop at the earliest, and the middle and left are sequentially lowered. A three-needle chain stitcher equipped with a needle thread feeding device having the above-mentioned configuration will first be described for the case of sewing ordinary fabrics. In this case, 'adjust the position of the variable needle thread path 17 in the up-down direction (ul-dl direction) in advance according to the thickness of the sewing fabric, the thickness of the needle thread 9 and the stretchability, etc., and the appropriate amount of the three needle threads 9 is appropriate. Adjust the length of the needle thread supply path. That is, it is adjusted so that the length of the needle thread supply path when the needle holder 5 is raised to the top dead center / and the length of the needle thread supply path when the ten pick 3 is lowered to the bottom dead point are substantially equal. By adjusting and using in this way, the three needle threads 9 that are sent out and guided after adjusting the frictional resistance of the thread tension device 出 to maintain an appropriate thread tension are provided according to the solid needle thread path l3-variable needle thread path 17 —Activity 14 200403370 The second needle thread feeding hole of the needle thread feeding member 8—the third needle thread feeding hole% —the i-th needle thread feeding hole 8A—the needle thread hole W of the needle thread feeding guide 18 passes in sequence, and respectively It is guided downward toward three needles 5. If in this state, the needle holder 3 and the needle 5 are reciprocated up and down, the movable needle thread feeding member 8 is synchronized with it, and the needle thread feeding shaft 6 is centered. The thread tension and sewing state produced by the thread tensioner 11 are well maintained, and the amount of needle thread 9 is appropriately controlled in such a way that no loosening or excessive tension is applied to the three needle threads 9, and the thickness of the sewing fabric can be predetermined. Sewing. Next, a description will be given of a case where a fabric made of a material having a very soft structure and a stretchy texture like a microfiber cloth is sewn. In this case: the second thread 9 supplied through the fixed needle thread path 13 and the variable needle thread path π is formed in the second needle thread feeding hole 8 of the needle thread feeding member 8 and the i needle thread feeding hole 8a, the needle guide hole 18a of the thread guide is lowered and guided to the needle 5. Therefore, the whole needle thread 9 portion of the movable needle thread feeding member 8 is held by the word "r", and the third thread is passed through the third needle thread in the middle of the 9th part of the r thread. Staying at an appropriate value so that the sewing tension does not occur unevenly, = The thread feeding member 8 is linked with the lowering movement of the needle holder 3 and the needle 5, and is lowered from the ascending position indicated by 5 to the position shown in FIG. 6 Position ① From the variable needle thread material 17 to the moving needle thread movement, the thread feed __L is lower and lower: the position of the large thread 8B toward the third needle thread feed hole 8C of the needle thread portion 9 & gradually moves toward: 15 200403370, resisting the thread tensioner U Needle thread feeding force for feeding out frictional resistance ^ The stronger the lower side, and ③ at the time when the movable needle thread feeding member 8 is shaken to a slightly upper position in the lowered position of FIG. 6, the third needle thread feeding hole 3C and the first! The needle thread feeding hole 3A㈣ the needle thread portion 9b is blocked by the thread support ⑽ of the material holder 19, and from this state, the movable needle thread feeding member 8 is shaken to the lowered position of FIG. Change to a posture that bends upwards and resists line tension! !! The needle thread feeding force f generated by the feeding resistance generated by U is further enhanced. Therefore, the needle thread feeding amount is increased downward. The needle thread 9 feeding amount generated by the movable needle thread feeding member 8 is larger and larger. A fiber cloth-like fabric made of a very soft and stretchy material can be used as a sewing object, so that the needle 5 can still pass through the fabric 5 to the bottom dead point and the needle 5 rises from the bottom dead point to the top dead point. The needle thread part is not extremely tight at the time, but has a slight degree of slackness 'so that the yarn loops wound around the claws of the needle plate when the fabric is fed can be smoothly released from the claws', and it can eliminate excessive tightening and avoid the sewing place of the fabric Deterioration of the sewing quality such as arched bulge, the excessive tightening is caused by the needle thread pushing down the part of the fabric when the needle 5 penetrates the fabric from above, or because the needle 5 rises from the dead point below the fabric The needle thread and the fishing line wrapped around it lift the needle penetrating part of the cloth. In addition, the three thread supports of the needle thread support 19 at the midway position of the needle thread supply path 8A of the movable needle thread feeding member 8 at the front end of the needle thread feeding hole 8A and the needle thread feeding hole 18 of the needle thread feeding guide 18 The center part is formed as shown in Figure 4. The right side (the earliest side where the thread hook enters the needle thread loop) is the highest and the step difference between the middle and the left side of the 200403370 is reduced sequentially, so even if the thread hook enters the three needle thread loops formed under the fabric The time point is that the left side of the yarn loop is later, and the three needle threads 9 when the thread-feeding member 8 reaches the lowered position are all 4 '. Therefore, the soft tissue cloth such as microfiber cloth is sewn, and the moon b does prevent sewing. Arched bulges everywhere reduce the quality of sewing. Also, in the above embodiment, as shown in Fig. 7 ..., even if it is Wei ::: 二 = Needle-type key stitching machine, it is possible to use the above-mentioned actions ① and ② The more M of the thread member 8 prevents the sewing, such as micro f, the larger the amount of needle thread coming out will decrease. The quality of the sewing of the fiber cloth core and soft tissue cloth by the way-the next, the actual three-needle key stitch sewing machine made by the person H invited by the person = = seat and needle-free seat in each case, determine the needle ten threads The length A of the needle thread supporting the two left and right needles, and the length B of the needle thread supplied to the needle when the needle holder reaches the lower point, the results obtained are shown in the table / for the left and right 2, and the lengths A and B of each needle thread are as shown in the figure. Shown in 9 places _ 2. For the various needle and thread passages of the road control, the needle thread feeding hole does not form the sum of the sizes ① to ⑥. Also, the number in Table 2 = between the fixed points 17 200403370 Table 1 (with needles In the case of a seat) Dead point measurement point on the needle frame ① ② ③ ④ ⑤ ⑥ A Left needle thread 18 55 25 24 80 125 327 Right needle thread 26 44 25 23 75 120 313 Needle needle bottom dead point measurement point ① ② ③ ④ ⑤ ⑥ B Left needle thread 18 73 36 30 36 158 351 Right needle thread 25 67 36 29 39 152 348
18 20040337018 200403370
❿ ，由上述表丨及表2的測定尺寸可知，在有針線承座之 =$針*在上死點時供至左右2支針的針線長度A與針 架在下死點時供至左右2支針的針線長度B的比率（A.B)於 2線為HU?，於右針線為丨肩：lu，又無針線 為上之情形的比率（A:B)於左針線為1肩：iG2，於右針線 出量左〇右1约0大7，在任一種情形，針架在下死點時的針線送 布#W且=有鬆弛度。因此，即使在縫製如微細纖維 :柔^有伸縮性的布料情形下，仍能獲得完工 ':的縫製品，而不會於縫製處產生拱 ：在 有針線承座之情形，鬆他量大而能獲得品質更高的^: 且，上述實施形態中已就適用於 拼縫機加以說明，不過，去缺 十專夕針式鏈狀 匆機。 田然亦可適用於多線鏈狀針法縫 又，較佳地，將活動針線送線構件 适線孔8C的針線引導部8a， -有第3針線 成，其位置能相對於活動針線送線構件的：…2所示構 ，口上下方向變更 19 200403370 並固定。於此情形，藉由針線引導部8a的上下位置變更， ~ 可上下調節第3針線送線孔8(：的位置，進一步擴大隨著活 動針、線送線構件的上下往復搖動運動所產生的送出量的控 制範圍。 【圖式簡單說明】 (一） 圖式部分 圖1是適用本發明的3針式鏈狀拼縫機的全體前視圖 〇 ® 2是顯示該3針式鏈狀拼縫機的針線送線裝置主要 拳 部分的構成的立體圖。 圖3是圖2的要部的放大前視圖。 圖4是針線承座的要部的放大左側視圖。 圖5是活動針線送線構件在上昇位置（上死點）時之該 3針式鏈狀拼縫機之前視圖。 圖6是活動針線送線構件搖動至下降位置（下死點）時 之该3針式鏈狀拼縫機之前視圖。 圖7是無針線承座情形的活動針線送線構件在上昇位 _ 置（上死點）時之該3針式鏈狀拼縫機之前視圖。 圖8是無針線承座情形的活動針線送線構件搖動至下 降位置（下死點）時之該3針式鏈狀拼縫機之前視圖。 圖9是說明以本發明提案時本案申請人試作的實際鏈 狀拚縫機為對象，測定上死點時及下死點時供至左右兩支 針的針線長度所用的測定點的要部前視圖。 (二） 元件代表符號 20 200403370 1 縫紉機臂部 ΙΑ 上壁部分 2 縫紉機床部 3 針架 4 針夾 5 針 6 針線送線軸 7 針線送線台 8 活動針線送線構件 8a 針線引導部 8Α 第1針線送線孔 8Β 第2針線送線孔 8C 第3針線送線孔 9 針線 9a 針線部分 9b 針線部分 10 線釣線 11 線張力器 12 針線供油裝置 13 固定針線通路 14 線通路安裝台 15 長孔 16 螺絲 17 可變針線通路， From the measured dimensions of the above table 丨 and table 2, it can be seen that the needle thread length A provided to the left and right 2 needles at the top dead point and the needle holder to the left and right 2 The ratio (AB) of the needle thread length B of the branch needle is HU? On the second thread, and the shoulder is on the right needle thread: lu, and the ratio of the case where the needle thread is not on (A: B) is 1 on the left needle thread: iG2, For the right needle thread output, the left, right, and right are about 0 and 7; in either case, the needle thread feed #W at the bottom dead center of the needle holder has slack. Therefore, even in the case of sewing fine fibers: flexible and stretchable fabrics, the finished product can still be obtained without arching at the sewing place: in the case of needle thread holders, the amount of looseness is large. A higher quality ^: can be obtained. Moreover, in the above embodiment, it has been explained that it is suitable for a stitching machine. However, there is no need for a needle chain rush machine. Tian Ran can also be applied to multi-thread chain stitching. Preferably, the needle thread guide 8a of the movable needle thread feeding member fitting thread hole 8C is formed by a third needle thread, and its position can be sent relative to the movable needle thread. Line member: ... 2 structure, the mouth up and down direction changed 19 200403370 and fixed. In this case, by changing the upper and lower positions of the needle thread guide 8a, the position of the third needle thread feeding hole 8 (: can be adjusted up and down, which further expands the movement generated by the up and down reciprocating shaking motion of the movable needle and the thread feeding member. The control range of the delivery amount. [Brief description of the drawings] (I) Part of the drawings Figure 1 is the entire front view of the 3-needle chain stitching machine to which the present invention is applied. ® 2 is the 3-needle chain stitching. A perspective view of the structure of the main punch part of the needle thread feeding device of the machine. Fig. 3 is an enlarged front view of the main part of Fig. 2. Fig. 4 is an enlarged left side view of the main part of the needle thread receiving seat. Front view of the 3-needle chain stitcher in the raised position (top dead center). Figure 6 shows the front of the 3-needle chain stitcher when the movable needle thread feeding member is shaken to the lowered position (lower dead point). View. Figure 7 is a front view of the 3-needle chain stitcher when the movable needle thread feeding member is in the ascending position (top dead point) without a needle thread socket. Figure 8 is an activity without a needle thread socket When the needle thread feeding member is shaken to the lowered position (lower dead point) Front view of the 3-needle chain stitcher. Figure 9 illustrates the actual chain stitcher that was tried by the applicant of the present case at the time of the proposal of the present invention, and was supplied to the left and right branches when the top dead point and the bottom dead point were measured. Front view of the main part of the measuring point used for the needle thread length. (II) Symbol for component 20 200403370 1 Sewing machine arm IA Upper wall part 2 Sewing machine part 3 Needle holder 4 Needle clamp 5 Needle 6 Needle thread feeding shaft 7 Needle thread feeding Table 8 movable needle thread feeding member 8a needle thread guide 8A first needle thread feeding hole 8B second needle thread feeding hole 8C third needle thread feeding hole 9 needle thread 9a needle thread portion 9b needle thread portion 10 thread fishing line 11 thread tensioner 12 needle thread Oil supply device 13 Fixed needle thread path 14 Thread path mounting table 15 Long hole 16 Screw 17 Variable needle path
21 200403370 18 針線導件 18a 針線孔 19 針線承座 19a 線支撐部 20 長孔 21 螺絲21 200403370 18 Needle guide 18a Needle hole 19 Needle socket 19a Thread support 20 Long hole 21 Screw
22twenty two