200419027 玫、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具有 針線送線裝置之縫紉機。尤其，係一種具備下列構件的具 有針線送線裝置之縫紉機：針架，於縫紉機臂部的前端部 被支撐成能透過曲柄機構與插穿支撐於縫紉機臂部内的驅 動主軸連動而上下往復運動；針，安裝於該針架之下端部； 縫：用：件’包含線鉤、布料進給機構，且收納於縫：機 床部之前端部；線張力器，用以調整供給針及線鉤之針線 及線鉤線的張力；及針線送線裝置，用以隨著該針架之上 下往復運動，將針線送出，使其經過線張力器及固定 通路，再供給針。 、 【先前技術】 維匕Γ知之具有針線送線裝置之縫匆機中，就其用以 二維持良好的縫製狀態的針線送出控制機構而言 日本之特開平7-155488號公鉬所掘- #“報所揭不，於縫切機臂部之前 有上下在復搖動之活動針線送線構件，並使針架 上知邛比縫紉機臂部前端部 突屮夕#加，山 上土口P更向上突出，於該 出之針*上&部分固定有與 線通路。 乂上下彺復運動之針 【發明内容】 不過，上述般習知之且 為了固定針線通路，於缝％ 、、、运、、、裝置之縫紉機中， 右♦孟 縫訪機臂部前端部之上辟邻分带成 有貝通孔，來使針架之上 土口P刀形成 邛刀比该上壁部分更向上突 200419027 出，因此，從貫通孔會漏油或塵埃侵入縫劫機臂部内，此 外，向上突出之針線通路合古 者等之安全性來看是不佳復運動，故從作業 、再者，針架之長度長且固定 有針線通路導致針架之番旦 極限。 之重里變大，縫製速度之高速化有其 :發明係有鑑於上述問題而開發出的縫紉機，其目的 通路之使用，將縫勿機臂部錢’其能省去針線 ^ 牙丨大致抢閉，防止漏油、塵埃之 铋入，並且藉由針架長度之 製速度之高速化。 u里化，能容易實現縫 為了達成上述目的，士欢 幼機，係具有··針竿^ 具有針線送線裝置之縫 透過曲柄機構與插穿支二::機臂部的前端部被支擇成能 …往復運動，·：支::::::部内的驅動主軸連動 件，包含線鉤、布料進仏機構…十木之下端部；縫製用零 端部;線張力器，用以=二=:縫幼機床部之前 動，將針線送二=:以隨著該針架之上下往復運 供給針;其特徵在於:、：;;=及固定針線通路’再 定成，在針架上昇至上死=…復運動範圍’係設 向上突出縫初機臂部前端部之上壁部分。 W不 =據具有上述特徵的本發明，由於省去用來針線 :上1:路之使用，故針架之長度不須設定成使其上端部 向上突出縫匆機臂部前端部之上壁部分，而能謀求= 200419027 度之縮短及輕量化，容易實 勿1現縫製速度之高速化。此外， 縫紉機臂部前端部之上壁部分 m h 士 m奴形成有針架裝入孔， 不過忒孔在通常之縫製時完全不梯 t ^ ri 44 不使用，故例如能事先用 承赍铋制〜冰* 丨穴致在閉，因此，能防止 部内。 丌此防止塵埃侵入縫紉機臂 本發明之其他目的及功效， 明確表示。 $在以下說明之實施财 【實施方式】 以下根據圖式說明本發明之實施形態。 於圖1至圖3中，1是綠έ 於縫紉機I ^ 、、、、、、為詹邛，2是縫紉機床部， 過曲柄==:(前端部)’將針架3支撑成能透 略)連動::::復運T:'_臂部1内的， 機構（由於周知，故省略詳細說^ *鄰接設有㈣ 於該針架3下端部透過針夹4 針架3的上下彳主店n — —支針5，並且該 叙5 , 運動範圍設定為即使該針架3在上異、重 動至上死點之狀態下，其上端部仍不合向上二:上’運 部1左端部m “上大出縫匆機臂 土口1刀的乾圍。又，於蟪ό 4也 部收納針板及線釣、 ' °卩2左端 %村進給機構等縫劁用 知，故省略詳細說明）。 μ用零件（由於周 於上述縫勿機臂部1的左右大 有作為針線逆绩驻娶 ]位置的别面部設 t線运線襄置之活動針線送線構件8， + 述驅動主軸連動的針 八猎者與上 線运線軸6的正反驅動旋轉，透過針 200419027 線送線台 7，^4- ^jp o »j , 線轴6為支:上上/往復運動同步，以_ 動針缞逆… 向)往復搖動運動。於此活 :=:Γ側的縫_臂部1的前面部配置有與 "12女裝成一體之固定針線通路13、及-個 可變針線料17。該針線供 二個 C^rm 3 η 置係從4個線張力器 對條針線9及1條線釣線10賦予送出摩捧阻力，以 個別調整線張力川送出並引導的4條線中有二9 H㈣‘m並於該等針線9塗 可變針線通路17,係炉膊、s—個 將通過此固定針線通路13後的三 =上之IS線通路安裝台14(固定連設於固定針線 透過長孔15及螺絲16沿上下(箭 唬Id-dl方向）變更並固定。 大致：二:活動針線送線構件8的前(左)端及長邊方向的 s ° ’分別形成有排在同一高度之3個帛1針線送 =A及3個第2針線送線孔犯’以將自線張力… 導之針線通路13及可變針線通路17而被供給引 ¥之3條針線9’通過固定在縫匆機臂^左端部的上下 位置的針線送線導件18上所形成的針線孔18a並 2針線^5進行下降5丨導；且於此第1針線送線孔8A與第 k '、、孔8B之間的活動針線送線構件8部分，將形成 … 曰開之3個第3針線送線孔8C的針線引導部8a 成一體’該第3針線送線孔8C，係用來將該等兩針線 达秦孔8A、8B間延伸的針線部分9a在其向下響曲成左右 大致對％的V字形之狀態下送出並引導。 200419027 又，於上述活動針線送線構件8前端 孔8A與針料線導件18 針線达線 的針線孔18a之間延伸的針線供 給路徑的中途位置設有圖- ㈣針綠仏 頁圖2所不之針線承座 座19具有3個線支撐部1Q ^ 此針綠承 僅在f a，该等3個線支撐部19a，係 於第1針線送線孔心二:方向)搖動時擋住位 線部分9b，並分別使㈡Λ十 之間的3條針 刀冽使其4呈向上彎曲之姿 承座19,其於針線送線導件 此針線 過長孔20及螺絲21上 < 置此透 Γ支更並固疋0如圖4所千，屮从 線承座19的3個線支#部〗0 y、 十 ㈣早准入# 上所形成之段差，係右側（線 鉤取早進入針線紗圈的一侧 低。 疋取同中間、左側依序降 在使用具備上述構成的針複 來縫製-般的布料的情二=針式鏈狀拼縫機 9的粗細、伸Λ 布料的厚度、針線 …々 下方向方向)調整可變 針線通路1 7的位詈，计，、；0 M A J ^ 並Μ 3條針線9的送出量 式調整針線供給路徑的長卢， ^ m ,^ + ❹度亦即，調整成針架5上昇至 上死點％的針線供給路徑長度 斜娃也认妨 扠厌針木3下降至下死點時的 力'Γ;Γ:Γ長度大致相等。藉由如此調整運用，將線張 式《後才、'生的达出摩擦阻力以維持適當的線張力之方 式=後才送出並㈣的3條針線9,係㈣定針線通路13 ::讀線通路17—活動針線送線構件8的第 ?:第3針線送線孔…針線送線孔8“針線送’ 、、導件18的針線孔i8a的順序通過，並分別朝3支针5被 200419027 下降引導。 若於此狀態下，針牟q B & c 针木d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，以針線送線軸6為中心， 上下（箭號u-d方向）往復搖動運動，邊良好地維持線張力 器U所產生的線張力及縫製狀態，邊以不施加鬆弛或過 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。 另一方面，在縫製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之情形下，通過固定針線 通路^及可變針線通路17供給的針線9,依序通過形成 於活動針線送線構件8的第2針線送線孔I》3針線送 線孔8C及第1斜绩详綠了丨q Λ 、針線达線孔8Α ’經針線送線導件18的針線 孔 18a ’並向針5被下降与丨道 m , 视下降引導，因此，保持於該活動針線 送線構件8的針線9部分的全長長，並且，此長針線9部 分的中途_ 3針線送線孔8C以大致v字形向下彎曲 者，故將線張力器Η賦予針線9之送出摩擦阻力保 :張力不會發生縫製不均的適#值，並且於活送 構件8與針架3及針5的下降移動連動，而自_5所示之 上幵位置向圖6所示之下降位置搖動運動時，⑷自可變針 線通路17至活動針線送線構件8前端的第丨針線送線孔8a 的距離L是越下方越大，⑻自第2針線送線孔8b朝向第 3針線达線孔8G的針線部分9a之姿勢逐漸向下，抵 張力器U賦予之送出摩擦阻力的針線送出力f越下= 強’以及(c)在活動針線送線構件8搖動至圖6的下降位置 11 200419027 的稍上方位置的時點，第3針線送線孔3C與第丨針線送線 孔3A間的針線部分9b被針線承座丨9的線支撐部19a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9b改變成向上彎曲之姿勢， 抵抗線張力器11所產生送出摩擦阻力的針線送出力f進一 步增強，因此，針線送出量是越往下方越大。200419027 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a sewing machine with a needle thread feeding device suitable for a multi-needle chain stitcher. In particular, the invention relates to a sewing machine with a needle thread feeding device including the following components: a needle holder is supported at the front end of the arm of the sewing machine so as to be able to reciprocate up and down through a crank mechanism and a driving spindle inserted and supported in the arm of the sewing machine; Needle, installed at the lower end of the needle holder; Sewing: Use: Pieces' Contains thread hook and fabric feeding mechanism, and is stored in the seam: the front end of the machine tool section; The thread tensioner is used to adjust the supply needle and thread hook Needle thread and thread hook thread tension; and needle thread feeding device for feeding the needle thread along with the needle frame reciprocating up and down, passing it through the thread tensioner and the fixed channel, and then supplying the needle. [Prior technology] In the sewing machine with a needle and thread feeding device known by Wei Diao, as for its needle and thread delivery control mechanism for maintaining a good sewing state, Japanese Patent Application No. 7-155488 digs out- # “The report reveals that there is a movable needle thread feeding member that swings up and down before the arm of the sewing machine, and makes the needle holder better than the front end of the sewing machine. It protrudes upward, and the thread path is fixed on the & part of the needle *. 针 The needle that moves up and down repeatedly [Summary of the invention] However, in order to fix the needle thread path, it is well-known as above, in order to fix the thread path. In the sewing machine of the device, the right part of the upper part of the front end of the machine arm of the sewing machine is provided with a through hole to make the soil knife P on the needle frame form a trowel that protrudes upwards than the upper wall part. 200419027, therefore, oil leakage or dust penetrates into the arm of the sewing machine from the through hole. In addition, the safety of the needle thread path protruding upwards is not good due to the safety of the ancients. Therefore, from the work, the needle holder The length is long and the needle thread path is fixed. The limit of the frame becomes larger. The sewing speed is increased due to the increase in the weight: the invention is a sewing machine developed in view of the above problems, and the use of its purpose path will save the sewing machine's arm money. ^ The teeth are generally closed, preventing oil leakage and dust from entering the bismuth, and the speed of the needle frame length is increased at high speed. U can be easily sewn to achieve the above purpose. · Needle ^ The seam with the needle thread feeding device is inserted through the crank mechanism and the insertion support 2 :: The front end of the arm part is selected to be able to ... reciprocate, ·: support :::::: Pieces, including thread hooks, cloth feed mechanism ... bottom end of Shiki; zero end for sewing; thread tensioner for = 二 =: move the sewing machine before the sewing machine part, and send the needle thread == to follow the needle The supply needle is reciprocated up and down the frame; it is characterized by:,: ;; = and the fixed needle thread path 're-formed, rising to the top of the needle frame = ... complex movement range' is set to protrude upward from the front end of the arm of the initial sewing machine Upper wall part W not = According to the present invention having the above-mentioned characteristics, Needle thread: top 1: road use, so the length of the needle holder does not need to be set so that its upper end protrudes upward from the upper wall of the front end of the sewing machine arm, but can be shortened and lightened by 200419027 degrees, easy to implement Do not increase the sewing speed. In addition, the upper part of the upper part of the arm of the sewing machine is formed with a needle holder mounting hole, but the countersunk hole is not used at all during ordinary sewing. T ^ ri 44 is not used, Therefore, for example, it can be closed in advance by using Chengbi bismuth ~ ice *, so the inside can be prevented. 防止 This prevents dust from invading the sewing machine arm. Other purposes and effects of the present invention are clearly shown. Embodiment] The embodiment of the present invention will be described below with reference to the drawings. In Figs. 1 to 3, 1 is a green sewing machine I ^ ,,,,,, is Zhan Yan, 2 is a sewing machine part, and crank == : (Front end) 'supports the needle holder 3 so that it can be seen through)) :::: Re-travel T:' _ The inside of the arm 1 (the mechanism is omitted because it is well known ^ * Adjacent is provided with ㈣) The lower end of the needle holder 3 passes through the needle clamp 4. The upper and lower positions of the needle holder 3 And the 5th, the range of motion is set even if the needle holder 3 is in the state of upward movement and heavy movement to the top dead point, its upper end still does not fit upward. Dry soil around the arm mouth 1 knife. In addition, in 蟪 4, the sewing board is also used to store needle boards and line fishing, and the left end of the ° ° 2% village feed mechanism is used for sewing, so detailed description is omitted). μ parts (because the left and right arms of the sewing machine 1 are largely used as needles and needles to counter marry), the other part of the position is provided with a movable needle and thread feeding member 8 for t-thread transport, + the needle-driven needle eight The hunter and the upper and lower spools 6 are driven to rotate forward and backward. Through the needle 200419027, the thread feed table 7 is provided. ^ 4- ^ jp o »j, the spool 6 is supported: the upper / upper movement is synchronized, and the _ moving needle is used to reverse … Toward) rocking motion. Here, the front side of the _ side of the __ arm 1 is provided with a fixed needlework path 13 integrated with " 12 women's clothing, and a variable needlework material 17. The needle thread is provided for two C ^ rm 3 η sets. The needle thread 9 and the fishing line 10 are given resistance from four thread tensioners. Among the four threads sent and guided by the thread tensioner, the thread tension can be adjusted individually. The second 9 H㈣'m is coated with a variable needle thread path 17 on the needle thread 9, which is a furnace, s—a three that will pass through the fixed needle path 13 = the upper IS thread path mounting table 14 (fixedly connected to the fixed The needle thread is changed and fixed along the up and down (arrow Id-dl direction) through the long hole 15 and the screw 16. Approximately: 2: The front (left) end of the movable needle thread feeding member 8 and the long side s ° 'are formed in rows. At the same height, three 帛 1 needle thread feeds = A and 3 second needle thread feed holes are made to guide the thread tension ... The needle thread path 13 and the variable needle path 17 are supplied to the three needle threads 9 'The needle thread hole 18a and the needle thread ^ 5 formed on the needle thread thread guide 18 fixed at the upper and lower positions of the left end of the sewing machine arm ^ are lowered 5 and guided; and here, the first needle thread thread hole 8A and The part of the movable needle thread feeding member 8 between the k ′ and the hole 8B will form the needle thread guide 8a of the three third needle thread feeding holes 8C. 'The third needle thread feeding hole 8C is used to send out and guide the needle thread portion 9a extending between the two needle threads reaching the Qin holes 8A and 8B in a state of a V shape that is approximately 5% to the left and right. 200419027 In addition, a figure is provided at the midway position of the needle thread supply path extending between the front hole 8A of the movable needle thread feeding member 8 and the needle thread guide 18 of the needle thread guide 18a-㈣ 针 绿 仏 页 图 2 The needle thread holder 19 has 3 thread support portions 1Q ^ This needle green bearing is only at fa, and these 3 thread support portions 19a are tied to the first needle thread feed hole center 2: direction) Blocking position when shaking Thread part 9b, and make 3 needle knives between 十 Λ and 10 make it 4 in an upwardly bent posture, and the seat 19 is on the needle thread feeding guide, the needle thread is too long 20 and the screw 21 < Through the Γ branch, it is more stable, as shown in Fig. 4. From the three line branches # 部 of the line socket 19, 0 y, the ten segment early access # segment formed on the right side (the line hook is taken early) The side that enters the needle thread loop is low. 疋 Take the same middle and left side in order and then use a needle compound with the above structure to sew-like cloth. Chain stitching machine 9 thickness, stretch thickness of cloth, needle thread ... (downward direction) Adjust the position of the variable needle thread path 17, meter,, 0; MAJ ^ and Μ 3 needle thread 9 delivery amount formula Adjust the length of the needle thread supply path, ^ m, ^ + ❹ Degree, that is, adjust the needle thread supply path length of the needle frame 5 to the top dead point%. The oblique baby also recognizes the force when the fork needle needle 3 descends to the bottom dead point. 'Γ; Γ: Γ are approximately equal in length. With this adjustment and use, the thread tension type "Later, the way to reach the frictional resistance to maintain the appropriate thread tension = = 3 needle threads 9 that are sent out later and are tied to the needle thread path 13 :: read Thread path 17—The first of the movable needle thread feeding member 8: the third needle thread feeding hole ... the needle thread feeding hole 8 "needle feeding", the needle thread hole i8a of the guide 18 passes in sequence, and each of them is directed toward 3 needles 5 It was guided downward by 200419027. In this state, the needles q B & c needle wood d and needle 5 are driven up and down to reciprocate, and the movable needle thread feeding member 8 is synchronized with it, centered on the needle thread feeding shaft 6 and up and down ( Arrow direction ud) Reciprocating rocking motion, while maintaining the thread tension and sewing state produced by the thread tensioner U, while appropriately controlling the amount of needle thread 9 sent out without applying slack or excessive tension to the three needle threads 9 On the other hand, when sewing a fabric made of a very soft and stretchy material like microfiber cloth, on the other hand, through the fixed needle thread passage ^ and the variable needle thread passage 17 supplied needlework 9, The second needle thread feeding hole I formed in the movable needle thread feeding member 8 is sequentially passed through. The 3 needle thread feeding hole 8C and the first oblique record are green. Q Λ and the needle thread reaching hole 8A 'through the needle thread feeding guide The needle thread hole 18a 'of 18 is lowered toward the needle 5 and guided by the path m. As a result, the entire length of the needle thread 9 portion of the movable needle thread feeding member 8 is kept long. The 3C thread feeding hole 8C is bent in a substantially V shape, so the thread tensioner Η is given to the frictional resistance of the needle thread 9 to ensure that the tension will not cause an uneven sewing value. When the rack 3 and the needle 5 move in tandem, and shakes from the upper 幵 position shown in _5 to the lowered position shown in FIG. 6, ⑷ moves from the variable needle thread path 17 to the front end of the movable needle thread feeding member 8 The distance L of the needle thread feeding hole 8a is larger and lower, and the posture of the needle thread portion 9a from the second needle thread feeding hole 8b toward the third needle thread reaching the thread hole 8G is gradually downward, and it is against the friction resistance given by the tensioner U. The lowering of the needle thread feeding force f = strong 'and (c) the movable needle thread feeding member 8 is shaken to the bottom of FIG. 6 At the time of the lower position 11 200419027, the needle thread portion 9b between the third needle thread feeding hole 3C and the third needle thread feeding hole 3A is blocked by the thread support portion 19a of the needle thread holder. The needle thread feeding member 8 is shaken to the lowered position in FIG. 6. With this shaking, the blocked needle thread portion 9 b changes to an upwardly bent posture, and the needle thread sending force f resisting the frictional resistance of the thread tensioner 11 is further enhanced. Therefore, The amount of needle thread is larger as it goes downward.
由於活動針線送線構件8所產生的針線9送出量是南 4下方越大故即使以如微細纖維布般由組織非常柔軟j 富有伸縮性的材質所構成之布料作為縫製對象時，仍能儀 =5貫穿布料到達下死點時的針線部分、及針5自下死點 貝穿布料向上死點上昇時的針線部分不極度繃緊，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Since the amount of needle thread 9 produced by the movable needle thread feeding member 8 is larger than the south 4, even if a fabric made of a very soft tissue like a microfibre cloth is used as the sewing object, it can still be measured. = 5 The part of the needle thread when the fabric reaches the bottom dead point, and the part of the needle thread when the needle 5 rises from the bottom dead point to the top dead point is not extremely tight, but has a slight degree of slack, so it can feed the fabric. The yarn loops wound around the claws of the needle plate smoothly disengage from the claws, and can eliminate excessive tightening, and avoid the reduction of the sewing quality such as the arched swell of the fabric. The excessive tightening is caused by the needle 5 from above. The needle thread pushes down the part of the fabric where it goes through
起因於'"自下方脫離布料時針線及纏在其上的線 鉤線將脫離處之布料提起。 "^動針㈣線構件8前端的第1針線送線’ Φ T琛孔18a之間延伸的針線供〗 H ::二上的針線承座19的3個線支撐部19a，係y :二=有右側(線鉤進入針線紗圈最早之側)最高」 工側依序降低的段差，故即使線鉤進 下方的3條針線紗圈的時點 ^ ； ” 活動針線、# # ”· 工側之紗圈越晚，仍可來 达線構件8到達下降位置時的3條針線9的㈣ 12 200419027 :保均等’故縫製如微細纖維布等般柔軟組織布料 月匕實防止縫製處呈拱形隆起等縫製品質之降低。 加以^上述實施形態中，雖已就設有針線承座19之情形 承座 不過’如圖7及圖8所示，即使是未設有針線 的3針式鏈狀拼縫機，仍能藉由前述（小⑻的作 大^舌動針線送線構件8越向下搖動，針線送出量就越 :止縫製如微細纖維布等般柔軟組織布料時的縫製品 貝之降低。 支針等多針式鏈狀 於多線鏈狀針法縫Caused by "" The needle thread and the thread tangled on it when the fabric is detached from below lift the fabric at the detached place. " ^ The first needle thread feeding thread at the front end of the movable needle thread member 8 is provided. Φ The thread supply for the needle thread extending between the holes 18a is H: The three thread support portions 19a of the needle thread socket 19 on the second side are y: Two = the right side (the earliest side where the thread hook enters the needlework yarn loop) is the highest. ”The step difference in order decreases on the work side, so even if the thread hook enters the 3 needlework loops below it;” the active needlework, # # ” The later the loop on the side is, the three stitches 9 can still be reached when the thread member 8 reaches the lowered position. 12 200419027: Baojun et al. Therefore, soft tissues such as microfiber cloth are sewn to prevent arching at the sewing place. Deterioration of sewing quality such as bulge. ^ In the above-mentioned embodiment, although the case has been provided for the needle thread holder 19, as shown in Figs. 7 and 8, even a 3-pin chain stitcher without a needle thread can still be borrowed. According to the aforementioned (the smaller the tongue, the larger the tongue, the needle thread thread-feeding member 8 is shaken downward, the more the needle thread is delivered: the reduction in the number of seams when sewing soft tissue cloth such as microfiber cloth, etc. is reduced. Multi-thread chain stitching
且’上述實施形態中已就適用於3 拼縫機加以說明，不過，當然亦可適用 幼機。 又，較佳地，將活動針線送線構件8上且有第3針惠 送線孔8C的針線引導部8a，如圖3的箭號 成，其位置能相對於活動針線送線構件8沿上下方向變； 並固定。於此情形，藉由針線引導部83的上下位置變更 可上下調節第3針線送線孔8C的位置，進—步擴大隨著^In addition, in the above-mentioned embodiment, it has been explained that the machine is applicable to a three stitch machine. However, a juvenile machine can of course also be applied. Also, preferably, the needle thread guide 8a having a third needle thread feeding hole 8C on the movable needle thread feeding member 8 is formed as shown by an arrow in FIG. 3, and its position can be relative to the movable needle thread feeding member 8 along Change up and down direction; and fixed. In this case, by changing the vertical position of the needle thread guide 83, the position of the third needle thread feeding hole 8C can be adjusted up and down.
動針線送線構件的上下往復搖動運動所產生的送出 制範圍。 【圖式簡單說明】 (一）圖式部分 圖1是適用本發明的3針式鏈狀拆縫機的全體前視圖。 圖2是顯示該3針式鏈狀拼縫機的針線送線裝置主要 部分的構成的立體圖。 圖3是圖2的要部的放大前視圖。 13 200419027 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 之該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。 ® 8疋無針線承座情形的活動針線送線構件搖動至下 P条^(立署 (L . I下死點）時之該3針式鏈狀拼縫機之前視圖。 (二 )元件代表符號 1 縫紉機臂部 1A 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 8A 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 200419027 9a 針線部分 9b 針線部分 10 線鉤線 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 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 15The range of the feed-out produced by the up-and-down reciprocating shaking motion of the moving needle-feeding thread-feeding member. [Brief description of the drawings] (I) Schematic part Fig. 1 is an overall front view of a 3-needle chain sewing machine to which the present invention is applied. Fig. 2 is a perspective view showing a configuration of a main part of a needle thread feeding device of the 3-needle chain stitcher. FIG. 3 is an enlarged front view of a main part of FIG. 2. 13 200419027 Figure 4 is an enlarged left side view of the main part of the needlework socket. Fig. 5 is a front view of the 3-needle chain stitcher when the movable needle thread feeding member is in the raised position (top dead center). Fig. 6 is a front view of the 3-needle chain stitcher when the movable needle thread feeding member is shaken to the lowered position (lower dead point). Fig. 7 is a front view of the 3-needle chain stitcher when the movable needle thread feeding member in the case of the needleless thread holder is in the raised position (top dead center). Front view of the 3-needle chain stitcher when the movable needle thread feeding member in the case of the 8 疋 needleless thread holder is shaken to the next P ^ (L.I bottom dead point). (II) Component representation Symbol 1 Sewing machine arm 1A 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 Moving needle thread feeding member 8a Needle thread guide 8A First needle thread feeding hole 8B 2 Needle thread feed hole 8C Third needle thread feed hole 9 Needle thread 200419027 9a Needle thread part 9b Needle thread part 10 Thread hook thread 11 Thread tensioner 12 Needle thread oil supply device 13 Fixed needle thread path 14 Line path mounting table 15 Long hole 16 Screw 17 Variable Needlework passage 18 Needle guide 18a Needle hole 19 Needle socket 19a Thread support 20 Long hole 21 Screw 15