A7 1228161 _____ B7___ 五、發明說明（ί ) 【發明領域】 本發明，係關於一種雙環套縫紉機之針線導引裝置， 詳言之，係關於一種以：並設在相對於縫製行進方向爲直 交之方向上之複數支針，自其上下方向往返運動經路之下 止點，一邊對布料之底部造出針圏一邊上升之過程中，令 線鉤依序進入複數之針圏中’藉以形成雙環套線圈；的方 式所構成的雙環套縫紉機之針線導引裝置。 【發明說明】 圖7，係作爲具備複數支針之這種先前的雙環套縫紉 機之針線導引裝置之一例，顯示具備2支針之雙環套縫紉 機之針線導引裝置的要部。該2支針雙環套縫紉機之針線 導引裝置，具備： 可動針線搖線道3(並設在相對於縫製行進方向Y爲直 交之方向上），係隨著透過針棒2在上下方向z往返驅動自 如般受到支撐的2支針1R，1L(即右針1R及左針1L)之上下 往返運動而同步動作，在箭頭u - d所示之上下方向往返 驅動搖動，來控制經由針線張緊器4R，4L、固定針線道5、 及針線道導引構件7對右針1R，左針1L進行供給之右針線 6R，左針線6L之喂線；以及， 針線支承件8，係固定設置於該可動針線搖線道3之 前端附近位置之縫紉機臂部(省略圖示），當右針1R、左針 1L位於下止點’且可動針線搖線道3向下方搖動時’如圖 8所示，針線支承件8會對在第1針線搖孔3a(形成於該可 3 本紙張尺度適用中國國家標準(CNS)A4規格（210 X 297公釐） 壯衣·— (請先閱讀背面之注意事項再填寫本頁) J^T·- 線· 經濟部智慧財產局員Μ消費合泎社印製 1228161 B7 五、發明說明（夕） 動針線搖線道3之前端部)與第2針線搖孔3b(形成爲較第 1針線搖孔3a接近搖動基端側)之間之針線部分，從下方支 承。在該針線支承件8之前方處，設置針線搖線護件9。 上述針線支承件8 ’如圖7及圖8所示，係由：裝配 板部8a，係在固定於縫紉機臂部(與圖1中之21相同，希 參照)之針線道導引構件7 ’透過長孔11及螺絲12來安裝 成上下高度位置可調整自如；以及，棒狀之線支承面8b， 係將右針線6R，左針線6L支承於同一平面上；所構成。又 ，線鉤10係設置於縫紉機針床部(與圖1中之23相同，希 參照）內，經過線張緊器4A供給線鉤線10N，藉由在右，左 兩針1R，1L從下止點上升之過程中，從該等兩針1R，1L之 並設方向之一側往另一側前進（即從右方往左方前進），來 依序進入後述之2支針圏中。 就使用如上述所構成之先前之2支針雙環套縫紉機之 針線導引裝置所產生的針線導引作用（動作），參照圖9〜圖 11說明。又，圖9A、圖10A、圖11A，係用以說明可動 針線搖線道3之前端部與針線支承件8之相對位置關係的 圖，圖9B、圖10B、圖11B，係用以說明針線支承件8之 針線承接狀態的圖，圖9C、圖10C、圖11C，係用以簡單 地說明針圈之狀態，而將右針1R及左針1L稍微偏開顯示 的圖，圖10D、圖11D，係對右針1R及左針1L從縫製行 進方向所見到的圖。 如圖9A〜圖9C所示，當右，左兩針1R，1L位置於下 止點，且可動針線搖線道3向下方搖動之狀態時，可動針 4 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱） . --- (請先閱讀背面之注意事項再填寫本頁) 訂： •線- 經濟部智慧財產局員工消費合作社印製 1228161 A7A7 1228161 _____ B7___ V. Description of the Invention (Field of Invention) The present invention relates to a needle guide device for a double-ring sleeve sewing machine. In particular, it relates to a device that is arranged at right angles to the direction of travel of the sewing machine. The plural needles in the direction move back and forth from the bottom dead center of the path to the bottom of the fabric, and while creating the needle loops on the bottom of the fabric, the thread hooks are sequentially entered into the multiple needle loops to form a double loop. Needle thread guide device of double loop sleeve sewing machine which is formed by the way of loop. [Explanation of the invention] Fig. 7 shows an example of a needle guide device of a conventional double-ring sewing machine having a plurality of needles, showing a main part of the needle guide of a double-ring sewing machine having two needles. The needle guide device of the two-needle double-ring sleeve sewing machine is provided with: a movable needle thread swinging path 3 (also provided in a direction orthogonal to the sewing travel direction Y), and reciprocates in the vertical direction z through the needle bar 2 Drive the 2 needles 1R, 1L (right needle 1R and left needle 1L) that are supported freely and move up and down and back and forth to move synchronously. Shake the drive back and forth in the up and down directions shown by arrows u-d to control the tension through the needle thread The needles 4R, 4L, the fixed needle thread 5 and the needle thread guide member 7 feed the right needle 6R and the left needle 6L to the right needle 1R and the left needle 1L; and the needle thread support 8 is fixedly provided on When the right needle 1R and left needle 1L are located at the bottom dead center of the sewing machine arm portion (not shown) near the front end of the movable needle thread swing channel 3, as shown in FIG. 8 As shown, the needle thread support 8 will be in the first needle thread swing hole 3a (formed in the standard paper size applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm). Please fill in this page again for the matters needing attention) J ^ T ·-Line · Member of Intellectual Property Bureau of the Ministry of Economic Affairs Printed by Fei Hexun Co., Ltd. 1228161 B7 V. Description of the invention (Even) Between the front end of moving needle thread rocker 3 and the second needle thread swing hole 3b (formed closer to the base end side than the first needle thread swing hole 3a) The needle thread part is supported from below. The needle thread supporter 9 is provided in front of the needle thread support 8. The above-mentioned needle thread support member 8 'is shown in Figs. 7 and 8 by a mounting plate portion 8a attached to a needle thread guide member 7' fixed to an arm portion of the sewing machine (same as 21 in Fig. 1 and referenced). The vertical height can be adjusted through the long holes 11 and the screws 12; and the rod-shaped thread support surface 8b supports the right needle thread 6R and the left needle thread 6L on the same plane; The thread hook 10 is provided in the needle bed of the sewing machine (same as 23 in FIG. 1, and is referred to), and the thread hook thread 10N is supplied through the thread tensioner 4A. During the rising of the bottom dead center, advance from one side of the two needles 1R and 1L to the other side (that is, from the right to the left) to sequentially enter the two needles described later. . The needle thread guide action (action) generated by using the needle thread guide device of the previous two-needle double-loop sewing machine constructed as described above will be described with reference to Figs. 9 to 11. 9A, 10A, and 11A are diagrams for explaining the relative positional relationship between the front end portion of the movable needle thread swinging path 3 and the needle thread support member 8. FIGS. 9B, 10B, and 11B are for explaining the needle thread 9C, FIG. 10C, and FIG. 11C are diagrams for explaining the state of the needle loop, and the right needle 1R and the left needle 1L are slightly shifted and shown, FIG. 10D, FIG. 11D is a view of the right needle 1R and the left needle 1L seen from the sewing travel direction. As shown in FIGS. 9A to 9C, when the right and left needles 1R, 1L are at the bottom dead center, and the movable needle thread swinging path 3 is swinging downward, the movable needle 4 is a paper standard that conforms to the Chinese National Standard (CNS ) A4 size (210 X 297 public love). --- (Please read the precautions on the back before filling this page) Order: • Line-Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs Consumer Cooperatives 1221161 A7
經濟邹智慧財產¾員Μ消費合阼?±印M B7 五、發明說明（4 ) 線搖線道3之第1針線搖孔3a及第2針線搖孔3b間之右 針線6R部分、左針線6L部分，係以針線支承件8之線支 承面8b從下方支承。 從此狀態之演變，如圖10C所示，右針1R，左針1L係 一邊造出針圏6Rr，6Lr —邊上升，同時如圖10D所示，線 鉤10則前進，其前端進入右針圏6Rr中。這時候，伴隨可 動針線搖線道3之向上方搖動，右針線6R，左針線6L如圖 10B所示，從針線支承件8之線支承面8b離開，筆直向上 方移動。 接著，如圖11C及圖11D所示，線鉤10之前端進入 左針圏6Lr中，讓線鉤線10N鉤住兩針線6R，6L。亦在這 時候，右針線6R，左針線6L如圖11B所示，從針線支承件 8之線支承面8b離開，筆直向上方移動。其後，藉由進行 布料之喂料、兩針1L，1R之下降、線鉤10之往返等周知之 縫紉動作，形成既定之雙環套線圈。 在具有上述之構造及針線導引作用之先前之複數支針 雙環套縫紉機之針線導引裝置中，因線鉤1〇進入複數之針 圈6Rr，6Lr中的時機上有差異，即，舉上述之2支針雙環 套縫紉機爲例說明，由於線鉤1〇係在進入通過右針圏6Rr 中後，始進入左針圏6Lr中，這樣因對針圈之進入時機有 時間差，故對應該時間差’左針圈6Lr就比右針圏6Rr爲 大。一旦針圈變大，則基於其針線之撚度或性質等原因， 變大之一側之針圈6Lr會向圖11C所示之箭頭c方向倒下 ，或因其重量向下方垂下，有致使線鉤1〇之前端無法進入 5 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁)Economy Zou Zhizhi Property ¾ members M consumption combined? ± printed M B7 V. Description of the invention (4) The right needle thread part 6R and the left needle thread between the first needle thread swing hole 3a and the second needle thread swing hole 3b of the thread guide 3 The part 6L is supported by the thread support surface 8b of the needle thread support 8 from below. From this state evolution, as shown in FIG. 10C, the right needle 1R and the left needle 1L are both created as needles 6Rr, 6Lr-while rising, as shown in FIG. 10D, the thread hook 10 is advanced, and its front end enters the right needle. 6Rr. At this time, the right needle thread 6R and left needle thread 6L are moved upward from the thread support surface 8b of the needle thread support member 8 as the movable needle thread swinging path 3 is swung upward, as shown in FIG. 10B. Next, as shown in FIGS. 11C and 11D, the front end of the thread hook 10 enters the left stitch 6Lr, and the thread hook 10N is hooked to the two needle threads 6R, 6L. Also at this time, as shown in Fig. 11B, the right needle thread 6R and the left needle thread 6L are separated from the thread support surface 8b of the needle thread support member 8 and moved straight upward. Thereafter, a known double-loop loop is formed by well-known sewing operations such as feeding of the cloth, lowering of the two needles 1L, 1R, and reciprocation of the thread hook 10. In the needle guide device of the previous multiple needle double loop sleeve sewing machine with the above-mentioned structure and needle guide function, the timing of the thread hook 10 entering the multiple needle loops 6Rr, 6Lr is different, that is, the above The two-needle double-loop sewing machine is taken as an example. Since the thread hook 10 enters the left needle 圏 6Lr after entering through the right needle 圏 6Rr, so there is a time difference between the timing of the needle loop entry, so the time difference should be dealt with. 'The left stitch 6Lr is larger than the right stitch 6Rr. Once the needle loop becomes larger, the needle loop 6Lr on the larger side will fall in the direction of the arrow c shown in FIG. 11C due to the twist or nature of the needle thread, or it will hang down due to its weight, resulting in the thread Hook 1〇 The front end cannot enter 5 This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page)
1228161 A7 B7 五、發明說明（★) 針圏6Lr之情形，其結果，線鉤線10N對針線6R，6L之鉤 取不完全、不確實’有發生跳針、無法形成既定之雙環套 線圏之問題。 【發明之摘述】 本發明，係鑒於如上述之實情而爲，以提供一種雙環 套縫紉機之針線導引裝置爲目的，係藉由對針線支承件施 以簡單之構造改良’來防止對複數之針圏之線鉤之進入錯 誤、跳針等發生，能確實形成既定之線圈。 爲達成上述目的，本發明之雙環套縫紉機之針線導引 裝置，係具備： 複數支針，係並設在相對於縫製行進方向爲直交之方 向上，可在上下方向往返運動自如； 線鉤，係在該等針從下止點一邊造出針圈一邊上升之 過程中，從複數支針之並設方向之一側向另一側前進，依 序進入複數之針圏之中； 經濟部智慧財產局員工消費合作社印製 •-------------裝--- (請先閱讀背面之注意事項再填寫本頁) -線· 可動針線搖線道，其配置於縫紉機臂部之外側部，係 隨著針之上下往返運動而動作，於上下方向往返驅動搖動 ，藉以控制經由針張緊器及固定針線道而對針進行供給之 針線的喂線；以及 針線支承件，其固定設置於該可動針線搖線道之前端 附近位置之縫紉機臂部，當上述針位於下止點、可動針線 搖線道向下方搖動時，對針線搖孔(形成於該可動針線搖線 道之前端部）與針線搖孔（形成於可動針線搖線道之搖動基 端側，用以彎曲導引掛跨於該前端針線搖孔及固定針線道 6 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 1228161 B7 五、發明說明（$ ) 間之針線之中途部分)之間之針線部分，從下方支承；其特 徵爲： 在上述針線支承件之線支承面附近之位置設置凸輪面 ;該凸輪面能伴隨可動針線搖線道(隨著針之從下止點上升 運動而動作)往上方之搖動，而對支承於針線支承件之線支 承面的複數條針線中之，至少供給於上述線鉤最慢進入之 側之針的針線，在線鉤即將進入該針圏之前賦予張力，並 保持該張力之賦予直到線鉤進入針圈中。 如上所述，依據本發明，因對於支承於針線支承件之 線支承面的複數條針線中之，至少供給至上述線鉤最慢進 入之側之針的針線，在線鉤即將進入該針圏之前，藉凸輪 面賦予張力，故能抑制對應線鉤之較慢進入側之針的針圏 變大，從而可抑制線鉤之較慢進入側之針圏倒下、垂下等 情形。因此，不復有線鉤對複數之針圈之進入錯誤、發生 跳針等，可確實地形成既定之雙環套線圈，達成縫製品質 之提昇，此爲所能獲致的效果。 在上述構造之雙環套縫紉機之針線導引裝置，用以對 針線賦予張力之凸輪面，雖可與針線支承件個別設置，但 亦可如第2發明，藉由與針線支承件之線支承面一體彎曲 形成，能圖謀構件之統一化，即單一構件化，使對縫紉機 臂部之裝配容易，同時能調整張力賦予之時機。 又，在上述構造之雙環套縫紉機之針線導引裝置，藉 由以能調整對針線所賦予之張力之方式來構成上述凸輪面 ，乃能因應針線之撚度、針線材之性質等適當地調整張力 7 ----------^--- (請先閱讀背面之注意事項再填寫本頁) -•線· 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 1228161 A7 ______B7__—… 五、發明說明（b ) ，不論使用任何針線之情形，均能正常確實地發揮既定之 機能。 -------------^裝—— (請先閱讀背面之注意事項再填寫本頁) 更，在上述構造之雙環套縫紉機之針線導引裝置’若 上述凸輪面之形狀形成爲，在線鉤進入針圈後，仍能繼續 賦予繃緊針線之張力之情形，則可讓線鉤在鉤取針圏後之 針線拉緊，而使針線繃緊，故能形成隨著布料之伸縮而變 化之線圏。 又，對線鉤較慢進入之針(2支針時爲左針)所供給的針 線賦予張力之時機，只要在線鉤即將進入其針圏之前’即 ，從針由下止點開始上升之時點至線鉤之前端進入針圈（線 鉤較慢進入)之間即可，在本說明書中，則記述爲線鉤即將 進入之前。 -線- 又，本發明，雖對於具備複數支針之雙環套縫紉機最 爲有效，但對於具備可在雙環套縫入裝飾線之複數支針的 覆環套(covering chain stitch)縫紉機，當然亦能適用。 本發明之其他目的及效果，將在以下所說明之實施例 明確揭示。 【圖式之簡單說明】 經濟部智慧財產局員工消費合作社印製 圖1，係適用本發明之2支針雙環套縫紉機的部分切 開前視圖。 圖2，係圖1之要部放大前視圖。 圖3，係上述2支針雙環套縫紉機之針線導引裝置之 要部的立體圖。 圖4A〜4C，係顯示上述2支針雙環套縫紉機之針線 8 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） A7 1228161 _____B7 ___ 五、發明說明（9 ) 導引裝置所進行之針線導引作用（動作）之第1狀態的說明 圖，圖4A，係說明可動針線搖線道之前端部與針線支承件 之相對位置關係的圖，圖4B，係說明針線支承件之針線承 接狀態的圖’圖4C，係爲容易說明針圈之狀態，將右針及 左針稍微偏移來顯示的圖。 圖5A〜5D，係顯示上述2支針雙環套縫紉機之針線導 引裝置所進行之針線導引作用（動作）之第2狀態的說明圖 ，圖5A，係說明可動針線搖線道之前端部與針線支承件之 相對位置關係的圖，圖5B，係說明針線支承件之針線承接 狀態的圖，圖5C，係爲容易說明針圈之狀態，將右針及左 針稍微偏移來顯示的圖，圖5D，係自縫製行進方向來看右 針，左針的圖。 圖6A〜6D，係顯示上述2支針雙環套縫紉機之針線導 引裝置所進行之針線導引作用（動作）之第3狀態的說明圖 ，圖6A，係說明可動針線搖線道之前端部與針線支承件之 相對位置關係的圖，圖6B，係說明針線支承件之針線承接 狀態的圖，圖6C，係爲容易說明針圈之狀態，將右針及左 針稍微偏移來顯示的圖，圖6D，係自縫製行進方向來看右 針，左針的圖。 圖7，係例示以往之2支針雙環套縫紉機之針線導引 裝置的立體圖。 圖8，係上述以往之2支針雙環套縫紉機之針線導引 裝置之要部的立體圖。 圖9A〜9C，係顯示上述2支針雙環套縫紉機之針線 9 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ---------------裝--- (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 1228161 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（g) 導引裝置所進行之針線導引作用（動作)之第1狀態的說明 圖，圖9A，係說明可動針線搖線道之前端部與針線支承件 之相對位置關係的圖，圖9B，係說明針線支承件之針線承 接狀態的圖，圖9C，係爲容易說明針圈之狀態，將右針及 左針稍微偏移來顯示的圖。 圖10A〜10D，係顯示上述2支針雙環套縫紉機之針線 導引裝置所進行之針線導引作用（動作）之第2狀態的說明 圖，圖10A，係說明可動針線搖線道之前端部與針線支承 件之相對位置關係的圖，圖10B，係說明針線支承件之針 線承接狀態的圖，圖10C，係爲容易說明針圈之狀態，將 右針及左針稍微偏移來顯示的圖，圖10D，係自縫製行進 方向來看右針，左針的圖。 圖11A〜11D，係顯示上述2支針雙環套縫紉機之針 線導引裝置所進行之針線導引作用（動作）之第3狀態的說 明圖，圖11A，係說明可動針線搖線道之前端部與針線支 承件之相對位置關係的圖，圖11B，係說明針線支承件之 針線承接狀態的圖，圖11C，係爲容易說明針圏之狀態， 將右針及左針稍微偏移來顯示的圖，圖HD，係自縫製行 進方向來看右針，左針的圖。 【較佳實施形態之詳細說明】 以下，根據圖式說明本發明之實施形態。 圖1，係適用本發明之2支針雙環套縫紉機的部分透 視前視圖，圖2，係圖1之要部放大前視圖，在圖丨及圖2 ，21係縫紉機臂部，在其前端部21A，支撐針棒2係以透 10 本紙張尺度適用中國國家標準(CNS)A4規格（2i〇 X 297^17 (請先閱讀背面之注意事項再填寫本頁)1228161 A7 B7 V. Description of the invention (★) The situation of needle loop 6Lr. As a result, the hook of 10N to 6R, 6L is incomplete and inaccurate. “There is a needle jump, and it is impossible to form the established double loop sleeve.” Problem. [Summary of the Invention] The present invention is made in view of the above-mentioned facts, and aims at providing a needle guide device for a double-loop sewing machine, by applying a simple structural improvement to the needle thread support, to prevent the plural The entry error and needle jump of the needle hook and the thread hook can form a predetermined coil. In order to achieve the above object, the needle and thread guide device of the double loop sewing machine of the present invention is provided with: a plurality of needles, which are arranged in a direction orthogonal to the sewing travel direction, and can move back and forth freely in the vertical direction; In the process of the needles rising from the bottom dead center while creating a needle loop, they advance from one side of the plurality of needles to the other side and sequentially enter the plurality of needles; the wisdom of the Ministry of Economic Affairs Printed by the Consumer Cooperative of the Property Bureau • ------------- Installation --- (Please read the precautions on the back before filling in this page) The outer side of the arm of the sewing machine moves along with the up and down movement of the needle, and drives back and forth to swing in the up and down direction, so as to control the feeding of the needle thread for supplying the needle through the needle tensioner and the fixed needle channel; and the needle thread support The sewing machine arm is fixedly disposed at a position near the front end of the movable needle thread swing path. When the above-mentioned needle is located at the bottom dead center and the movable needle thread swing path swings downward, the needle thread swing hole (formed in the movable needle thread swing Of the line Front part) and needle thread swing hole (formed on the base side of the movable needle thread swing channel to bend and guide the needle thread swing hole and the fixed needle thread channel 6) This paper size applies to China National Standard (CNS) A4 Specification (210 X 297 mm) 1228161 B7 5. Description of the invention ($) The needle thread part between needle thread parts) is supported from below; it is characterized by: near the thread bearing surface of the above needle thread support A cam surface is provided; the cam surface can be shaken upward with the movable needle thread swinging path (moving with the needle moving from bottom dead center) to the upper side, and among the plurality of needle threads supported on the thread supporting surface of the needle thread supporting member , At least the needle thread supplied to the needle at the slowest entering side of the above-mentioned hook, and the tension is given just before the hook enters the stitch, and the tension is maintained until the hook enters the loop. As described above, according to the present invention, since the needle thread which is at least supplied to the side where the thread hook enters the slowest among the plurality of needle threads supported on the thread supporting surface of the needle thread support, the thread hook is just before entering the needle loop. By applying tension to the cam surface, it is possible to prevent the needle loop of the slower entry side of the thread hook from becoming larger, so that the needle loop of the slower entry side of the thread hook can be prevented from falling down and hanging down. Therefore, it is possible to form a predetermined double loop coil without any mistakes in the entry of the wire hook to the number of stitches, skip stitches, etc., and achieve the improvement of sewing quality. This is the effect that can be achieved. The needle thread guide device of the double-loop sleeve sewing machine with the above-mentioned structure, the cam surface for applying tension to the needle thread can be provided separately from the needle thread support, but it can also be used with the thread support surface of the needle thread support as in the second invention. It is formed by integral bending, which can attempt to unify the components, that is, a single component, which makes it easy to assemble the arm of the sewing machine, and at the same time, it can adjust the timing of the tension. In addition, the needle thread guide device of the double loop sewing machine with the above-mentioned structure constitutes the cam surface in such a manner that the tension given to the needle thread can be adjusted, and the tension can be appropriately adjusted in accordance with the twist of the needle thread and the nature of the needle thread material. 7 ---------- ^ --- (Please read the precautions on the back before filling out this page)-• line · The paper size printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs applies the Chinese national standard ( CNS) A4 specification (210 X 297 mm) 1228161 A7 ______B7__ — ... 5. Description of the invention (b), no matter what kind of needle thread is used, it can perform its established function normally and surely. ------------- ^ Install—— (Please read the precautions on the back before filling out this page) Also, in the above structure of the double-loop sewing machine needle guide device 'if the cam surface of the The shape is such that after the wire hook enters the needle loop, the tension of the needle thread can still be given. Then, the needle hook can be tightened after the hook is taken out to make the needle thread tight, so it can be formed as The thread of the cloth stretches and changes. In addition, the timing of applying tension to the needle thread provided by the needle with a slower entry of the hook (the left needle in the case of two needles), as long as the hook is about to enter its needle loop, that is, from the time when the needle starts to rise from bottom dead center Just before the thread hook enters the needle loop (the thread hook enters more slowly), in this manual, it is described as just before the thread hook enters. -Thread-Although the present invention is most effective for a double-ring sewing machine having a plurality of needles, it is of course also applicable to a covering chain stitch sewing machine having a plurality of needles capable of sewing a decorative thread in the double-ring. Can apply. Other objects and effects of the present invention will be clearly disclosed in the embodiments described below. [Brief description of the drawing] Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Figure 1. This is a partial cut-away front view of the two-needle double-ring sleeve sewing machine to which the present invention is applied. FIG. 2 is an enlarged front view of a main part of FIG. 1. Fig. 3 is a perspective view of a main part of the needle thread guide of the above-mentioned two-needle double-ring sewing machine. Figures 4A to 4C show the needle and thread of the above two-needle double-ring sewing machine. 8 The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) A7 1228161 _____B7 ___ V. Description of the invention (9) Guiding device An explanatory diagram of the first state of the needle thread guiding action (action) performed, FIG. 4A is a diagram illustrating the relative positional relationship between the front end of the movable needle thread swinging path and the needle thread support, and FIG. 4B is an illustration of the needle thread support FIG. 4C is a diagram showing the state of the needle thread receiving state. FIG. 4C is a diagram in which the right and left needles are slightly shifted for easy explanation of the state of the needle loop. 5A to 5D are explanatory views showing the second state of the needle thread guiding function (action) performed by the needle thread guide device of the above two-needle double-ring sewing machine, and FIG. 5A is an illustration of the front end portion of the movable needle thread swinging path Figure 5B is a diagram showing the relative positional relationship with the needle thread support. Figure 5B is a diagram illustrating the needle thread receiving state of the needle thread support. Figure 5C is a diagram illustrating the state of the needle loop by slightly shifting the right and left needles. Fig. 5D is a view of the right needle and the left needle when viewed from the sewing travel direction. 6A to 6D are explanatory views showing the third state of the needle thread guiding function (action) performed by the needle thread guide device of the above two-needle double-ring sewing machine, and FIG. 6A is an illustration of the front end portion of the movable needle thread swinging path Figure 6B shows the relative positional relationship with the needle thread support. Figure 6B is a diagram illustrating the needle thread receiving state of the needle thread support. Figure 6C is a diagram illustrating the state of the needle loop by slightly shifting the right and left needles. Fig. 6D is a view of the right needle and the left needle when viewed from the sewing travel direction. Fig. 7 is a perspective view illustrating a needle thread guide device of a conventional two-needle double loop sewing machine. Fig. 8 is a perspective view of a main part of the needle thread guide device of the conventional two-needle double-ring sewing machine. Figures 9A to 9C show the needle and thread of the two-needle double-ring sleeve sewing machine. 9 The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -------------- -Install --- (Please read the precautions on the back before filling out this page) · Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 1221161 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Invention Description (g) Guide 9A is a diagram illustrating the relative positional relationship between the front end of the movable needle thread swinging path and the needle thread support, and FIG. 9B is a diagram illustrating the needle thread FIG. 9C is a diagram showing the state of receiving the needle thread of the support, and FIG. 9C is a diagram in which the right needle and the left needle are slightly shifted to show the state of the needle loop. FIGS. 10A to 10D are explanatory views showing the second state of the needle thread guiding function (action) performed by the needle thread guide device of the above two-needle double-ring sewing machine, and FIG. 10A is an illustration of the front end portion of the movable needle thread swinging channel. Figure 10B is a diagram showing the relative positional relationship with the needle thread support. Figure 10B is a diagram illustrating the needle thread receiving state of the needle thread support. Figure 10C is a diagram illustrating the state of the needle loop by slightly shifting the right and left needles. FIG. 10D is a view of the right needle and the left needle when viewed from the sewing travel direction. 11A to 11D are explanatory views showing the third state of the needle thread guiding function (action) performed by the needle thread guide device of the above two-needle double-ring sewing machine, and FIG. 11A is a diagram illustrating the front end portion of the movable needle thread swinging channel Figure 11B shows the relative positional relationship with the needle thread support. Figure 11B is a diagram illustrating the needle thread receiving state of the needle thread support. Figure 11C is a diagram illustrating the state of the needle thread by shifting the right and left needles slightly. The figure and the figure HD are views of the right needle and the left needle when viewed from the sewing travel direction. [Detailed description of a preferred embodiment] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Fig. 1 is a partial perspective front view of a two-needle double-ring sleeve sewing machine to which the present invention is applied, and Fig. 2 is an enlarged front view of the main part of Fig. 1, and Figs. 21 and 21 show the arm portion of the sewing machine at its front end. 21A, supporting needle bar 2 is based on 10 paper sizes. Applicable to China National Standard (CNS) A4 specifications (2iOX 297 ^ 17 (Please read the precautions on the back before filling this page)
經濟部智慧財產局員工消費合作社印製 1228161 ^ A/ B7 五、發明說明（气） 過上下之軸承（省略圖示）而在上下方向往返運動自如的方 式受到支撐，同時鄰接於該針棒2，設置布料緊壓機構（因 周知，省略詳細說明）。在上述針棒2之下端部，透過阻針 件22裝設2支針(即右針1R及左針1L)，同時從上述縫紉 機臂部21之基端部之下部，相對該縫紉機臂部21以平行 狀態向左側所延伸設置之縫紉機床部23之前端部，係收容 著針板、緊壓機構、線鉤、喂料機構等之縫紉用構件（ 因周知，省略詳細說明），藉由該縫紉機床部23及上述縫 紉機臂部21構成雙環套縫紉機之縫紉機機架24。 作爲上述2支針雙環套縫紉機之針線導引裝置，在縫 紉機機架24，基本上配置與在圖7及圖8所說明之先前之 2支針雙環套縫紉機同樣構成之物。其代表的構成，係具 備：針張緊器4R，4L，4A ;固定針線道5 ;針線道導引構件 7 ;可動針線搖線道3，係隨著右針1R，左針1L之上下往返 運動來同步動作而在上下方向往返驅動搖動，來控制針線 6R，6L之喂線；以及，針線支承件8，係對第1針線搖孔 3a(形成於該可動針線搖線道3之前端部)與第2針線搖孔 3b(形成於搖動基端側）之間之針線部分，從下方支承；因 這些之配置及機能與在圖8所示者相同，對該相當部分使 用问一符號’而省略其詳細說明。 在上述之構造以外，在固定針線道5係裝備著針線供 油裝置14。該針線供油裝置14，藉由對通過固定針線道5 之右，左兩針線0R，6L塗佈潤滑油來發揮其機能(防止使用 合成纖維之縫線或布料時之斷線或跳針等問題之發生）。又 11 本紙張尺度適用中國國家標準(CNS)A4^7T1〇 χ 297公爱） (請先閱讀背面之注意事項再填寫本頁)Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 1228161 ^ A / B7 V. Description of the Invention (Gas) The upper and lower bearings (not shown) are supported in a freely reciprocating manner in the up and down direction and are adjacent to the needle bar 2 , Set the fabric pressing mechanism (because it is well known, detailed description is omitted). Two needles (ie, right needle 1R and left needle 1L) are installed through the needle blocking member 22 at the lower end portion of the needle bar 2 above, and from the lower portion of the base end portion of the sewing machine arm portion 21, the needle arm portion 21 is opposite to the sewing machine arm portion 21 The front end of the sewing machine section 23 extending to the left side in a parallel state is a sewing member (such as a well-known, detailed description is omitted) for accommodating a needle plate, a pressing mechanism, a thread hook, and a feeding mechanism. The sewing machine part 23 and the above-mentioned sewing machine arm part 21 constitute a sewing machine frame 24 of a double loop sewing machine. As the needle guide device of the two-needle double-loop sewing machine, basically, the sewing machine frame 24 is configured with the same structure as the conventional two-needle double-loop sewing machine described with reference to Figs. 7 and 8. The representative structures are: needle tensioners 4R, 4L, 4A; fixed needle channel 5; needle channel guide member 7; movable needle thread swing channel 3, which moves up and down with the right needle 1R and the left needle 1L Movement to synchronize movement and drive back and forth in the up and down direction to control the feeding of needle thread 6R, 6L; and the needle thread support 8 is for the first needle thread swing hole 3a (formed at the front end of the movable needle thread swing channel 3 ) And the second needle thread swing hole 3b (formed on the base side of the swing) are supported from below; these configurations and functions are the same as those shown in FIG. The detailed description is omitted. In addition to the above-mentioned structure, the fixed needlework channel 5 is equipped with a needlework oil supply device 14. The needle thread oil supply device 14 exerts its function by applying lubricating oil to the right and left needle threads 0R and 6L through the fixed needle thread channel 5 (prevents the thread breakage or needle jump when using synthetic fiber sutures or fabrics, etc. The problem). 11 This paper size applies to China National Standard (CNS) A4 ^ 7T1〇 χ 297 public love) (Please read the precautions on the back before filling this page)
1228161 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（iC7 ) ，上述可動針線搖線道3，如圖2所明示，係隨驅動主軸( 省略圖示)而動作，其藉由露出於上述縫紉機機架24之縫 紉機臂部21之外側部的針線搖軸15之正反往返旋轉，而 透過針線搖台16在上下方向往返驅動搖動自如。 上述構成之2支針雙環套縫紉機之針線導引裝置之針 線支承件8，如圖2及圖3所示，由：裝配板部8a，係在 固定於縫紉機臂部21之針線道導引構件7,透過長孔11 及螺絲12而能自由調整本身上下高度來裝配；以及，棒狀 之線支承面8b，係將右，左兩針線6R，6L支承於同一平面上 ;所形成，同時在線支承面8b附近之位置，凸輪面8c(能 伴隨可動針線搖線道3向上方搖動，而對支承於線支承面 8b之右，左兩針線6R，6L中之線鉤10較慢進入之左針線6L ，在鉤針10即將進入針圏6Lr之前賦予張力)係藉由裝配 板部8a之折彎而形成爲一體。 其次，就具有上述構造之2支針雙環套縫紉機之針線 導引裝置的針線導引作用，參照圖4〜圖6說明。又，圖4〜 圖6,分別對應於說明先前之針線導引裝置之針線導引作 用的圖9〜圖11’圖4A〜圖6A係說明可動針線搖線道3 之前端部與針線支承件8之相對位置關係的圖，圖4B〜圖 6B係說明針線支承件8之針線承接狀態的圖’圖4C〜圖 6C，係爲容易說明針圈之狀態，將右針1R及左針1L稍微 偏移來顯示的圖，圖5D及圖6D係自縫製行進方向來看右 針1R，左針1L的圖。 如圖4A及圖4C所示，當兩針1R，1L位於下止點，且 12 (請先閱讀背面之注意事項再填寫本頁)1228161 A7 B7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the Invention (iC7). The above-mentioned movable needle thread rocker 3, as shown in Figure 2, is driven by the drive spindle (not shown). The needle thread rocker shaft 15 exposed on the outer side of the sewing machine arm portion 21 of the sewing machine frame 24 rotates forward and backward, and the needle thread rocker 16 can be driven to swing back and forth in the vertical direction. As shown in FIGS. 2 and 3, the needle thread support 8 of the needle and thread guide device of the two-needle double-ring sleeve sewing machine constituted as described above is composed of an assembly plate portion 8a attached to a needle thread guide member fixed to the arm portion 21 of the sewing machine. 7, through the long hole 11 and the screw 12 can freely adjust the vertical height of the assembly; and, the rod-shaped thread support surface 8b, the right and left two needle threads 6R, 6L are supported on the same plane; formed, at the same time online At the position near the support surface 8b, the cam surface 8c (can be moved upwards with the movable needle thread swinging path 3, and the left of the two needle threads 6R, 6L which are supported on the right of the thread support surface 8b, and the left of the thread hook 10 are entered slowly. The needle thread 6L is provided with tension just before the crochet needle 10 enters the needle loop 6Lr), and is integrally formed by bending the mounting plate portion 8a. Next, the needle thread guide function of the needle thread guide device of the two-needle double-loop sleeve sewing machine having the above-mentioned structure will be described with reference to FIGS. 4 to 6. 4 to FIG. 6 correspond to FIGS. 9 to 11 that illustrate the needle guide function of the conventional needle guide device, and FIGS. 4A to 6A illustrate the front end of the movable needle thread swinging path 3 and the needle thread support. Fig. 4B to 6B are diagrams illustrating the needle thread receiving state of the needle thread support member 8 in Figs. 4B to 6B. Figs. 4C to 6C are for easy explanation of the state of the needle loop. The right needle 1R and the left needle 1L are slightly 5D and FIG. 6D are diagrams showing the right needle 1R and the left needle 1L as viewed from the sewing travel direction. As shown in Figures 4A and 4C, when the two needles 1R, 1L are at the bottom dead center, and 12 (Please read the precautions on the back before filling this page)
一aj. •線· 本紙張尺度適用中國國家標準（CNS)A4規格（21〇 x 297公爱）1 aj. • line · This paper size is applicable to China National Standard (CNS) A4 (21〇 x 297 public love)
1228161 五、發明說明（丨丨） 可動針線搖線道3向下方搖動之狀態時，可動針線搖線道 3之第1針線搖孔3a與第2針線搖孔3b間的右針線6R部 分，左針線6L部分，如圖4B所示’受到針線支承件8之線 支承面8b自下方支承。 此狀態之演變，如圖5C所示，兩針1R，1L係一邊造 出針圏6Rr，6Lr —邊上升，同時如圖5D所示，線鉤10則 前進，而其前端進入右針圈6Rf中。這時候，伴隨可動針 線搖線道3向上方搖動，右針線6R，左針線6L會被同時上 提，如圖5A及圖5B所示，從針線支承件8之線支承面 8b離開。而後，右針線6R筆直向上方移動，另一方面’ 左針線6L則抵接於凸輪面8c之下部傾斜面8cl，一邊接 觸著於該下部傾斜面—邊向右斜上方移動。藉此，對 鉤止於左針1L之左針線6L賦予張力，而抑制左針圈6Lr 變大。 接著，如圖6C及圖6D所示，線鉤10之前端進入左 針圈6Lr*中。這時候，左針線6L，如圖6A及圖6B所示 ，抵接於凸輪面8c之頂部張出面8c2而呈拉伸狀態，其針 圈6Li*則保持爲一定大小。因此，不會發生針圈6Lr之倒 下或垂下，線鉤10則從其前端確實進入左針圏6Lr中。藉 此，線鉤線10N可確實鉤取右針線6R，左針線6L，其後， 藉由進行布料之喂料、兩針1R，1L之下降、線鉤10之復原 等周知之縫紉動作，形成既定之雙環套線圏。 而且，由於伴隨雨針1R，1L之上升，可動針線搖線道 3之向上方搖動時，左針線6L順沿直線狀之頂部張出面 13 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱） . . 裝--- (請先閱讀背面之注意事項再填寫本頁) · -線- 經濟部智慧財產局員工消費合作社印製 1228161 A7 五、發明說明（ 8c2移動於上下方向，線鉤10進入左針圏6Lr後，仍持續 賦予張力於左針線6L而實施繃緊針線，故即使以具伸縮 性之布料爲縫製對象之情形，仍可跟隨布料之伸縮等而確 實地形成既定之雙環套線圏。 又，伴隨兩針1R，1L之上升，可動針線搖線道3抵達 其搖動上止點後，開始向下方搖動時，左針線6L係一邊 接觸於上述凸輪面8c之上部傾斜面8c3 —邊往頂部張出面 8c2下降移動，對鉤在線鉤10之腹部之左針線6L.賦予張 力，使線圏背面之三角形安定，而能防止跳針之發生。 又，在上述實施例，雖就令凸輪面8c與針線支承件8 一體形成以圖謀構件之統一化加以說明，但亦可將凸輪面 8c與針線支承件8分別設置。又，亦可令凸輪面8c例如 在圖4B之X方向移動固定自如，而調整對左針線6L所賦 予之張力。藉由因應該左針線6L撚度或線材之性質調整 爲適當之張力而使用，不論使用任何針線之情形，亦能正 常確實地發揮既定之機能。 又，在上述實施例，雖適用於具備2支針之雙環套縫 紉機，但即使適用於具備至少3支針的雙環套縫紉機或具 備可將裝飾線縫入雙環套線圈之複數支針的覆環套縫紉機 ，當然亦能發揮同樣效果。 【符號說明】 1 縫紉機臂部 1R 右針 1L 左針 14 本纸張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） u I --- (請先閱讀背面之注意事項再填寫本頁) -^-rtz · -線. 經濟部智慧財產局員工消費合作社印製 1228161 經濟部智慧財產局員工消費合作社印製 A7 _B7 五、發明說明（β ) 2 針棒 3 可動針線搖線道 3a 第1針線搖孔 3b 第2針線搖孔 4R、4L、4A 針張緊器 5 固定針線道 6R 右針線 6L 左針線 6Rr 右針圏 6Lr 左針圏 7 針線道導引構件 8 針線支承件 8a 裝配板部 8b 線支承面 8c 凸輪面 8cl 下部傾斜面 8c2 部張出面 8c3 上部傾斜面 9 針線搖護件 10 線鉤 ION 線飽針線 11 長孔 12 螺絲 14 針線供油裝置 15 (請先閱讀背面之注意事項再填寫本頁)1228161 V. Description of the invention (丨 丨) When the movable needle thread swing channel 3 is shaken downward, the right needle thread 6R between the first needle thread swing hole 3a and the second needle thread swing hole 3b of the movable needle thread swing channel 3, left As shown in FIG. 4B, the needle thread 6L portion is supported by the thread support surface 8 b of the needle thread support 8 from below. The evolution of this state, as shown in Figure 5C, the two needles 1R, 1L are created with needles 6Rr, 6Lr-rising at the same time, as shown in Figure 5D, the thread hook 10 is advanced, and its front end enters the right needle loop 6Rf. in. At this time, as the movable needle thread swinging path 3 is shaken upward, the right needle thread 6R and the left needle thread 6L are simultaneously lifted, as shown in Figs. 5A and 5B, away from the thread support surface 8b of the needle thread support member 8. Then, the right needle thread 6R moves straight upward, and on the other hand, the left needle thread 6L abuts against the lower inclined surface 8cl of the cam surface 8c, and moves obliquely upward and right while touching the lower inclined surface. Thereby, tension is applied to the left needle thread 6L hooked to the left needle 1L, and the left needle loop 6Lr is suppressed from becoming large. Next, as shown in Figs. 6C and 6D, the front end of the thread hook 10 enters the left needle loop 6Lr *. At this time, the left needle thread 6L, as shown in FIGS. 6A and 6B, abuts on the top protruding surface 8c2 of the cam surface 8c and is in a stretched state, and its needle loop 6Li * is maintained at a certain size. Therefore, the needle loop 6Lr does not fall down or hang down, and the thread hook 10 does enter the left needle loop 6Lr from its front end. With this, the thread hook 10N can reliably take the right needle thread 6R and the left needle thread 6L. Thereafter, it is formed by well-known sewing operations such as feeding of the cloth, lowering of the two needles 1R, 1L, and recovery of the thread hook 10. Established double-ring sleeves. In addition, with the rise of the rain needles 1R and 1L, when the movable needle thread rocking channel 3 is swung upward, the left needle thread 6L is extended along the straight top surface. 13 This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 public love).. --- (Please read the precautions on the back before filling out this page) · -line-Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 1228161 A7 V. Description of the invention (8c2 moves up and down After the thread hook 10 enters the left needle thread 6Lr, it continues to give tension to the left needle thread 6L and implements the tight needle thread. Therefore, even if a stretchable fabric is used as the sewing object, it can still be reliably formed following the expansion and contraction of the fabric. When the two needles 1R and 1L rise, the movable needle thread swinging path 3 reaches its top dead center and starts to swing downward. When the left needle thread 6L contacts the cam surface 8c, Upper inclined surface 8c3—The side is moved downward toward the top extension surface 8c2, and the tension is applied to the left needle thread 6L on the abdomen of the hook 10, so that the triangle on the back of the thread loop is stabilized to prevent the needle from jumping. In the embodiment, although the cam surface 8c and the needle thread support 8 are integrally formed to illustrate the unification of the components, the cam surface 8c and the needle thread support 8 may be separately provided. Alternatively, the cam surface 8c may be Figure 4B moves in the X direction freely and fixedly, and adjusts the tension given to the left needle thread 6L. By adjusting the left needle thread 6L twist or the nature of the wire to an appropriate tension, it can be used regardless of the situation of any needle thread In addition, although the above-mentioned embodiment is applicable to a double-loop sewing machine having two needles, the present embodiment is applicable to a double-loop sewing machine having at least three needles, or is equipped with a double-loop sewing machine capable of sewing decorative threads. Sewing machines with multiple needles and sleeves can of course also achieve the same effect. [Symbols] 1 Sewing machine arm 1R Right needle 1L Left needle 14 This paper size applies to China National Standard (CNS) A4 (210 X 297 male) ）) U I --- (Please read the precautions on the back before filling out this page)-^-rtz · -line. Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and Consumer Cooperatives 1221161 Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the Industrial and Consumer Cooperatives A7 _B7 V. Description of the invention (β) 2 Needle bar 3 Movable needle thread swinging path 3a 1st needle thread swinging hole 3b 2nd needle thread swinging hole 4R, 4L, 4A Needle tensioner 5 Fixed needle thread 6R right Needle thread 6L Left needle thread 6Rr Right needle 圏 6Lr Left needle 圏 7 Needle thread guide member 8 Needle thread support 8a Assembling plate portion 8b Line support surface 8c Cam surface 8cl Lower inclined surface 8c2 Part extension surface 8c3 Upper inclined surface 9 Needle thread protector 10 Hook ION Needle thread 11 Long hole 12 Screw 14 Needle oil supply device 15 (Please read the precautions on the back before filling this page)
. .線· 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 1228161 A7 _B7 五、發明說明（、IV) 15 針線搖軸 16 針線搖台 21 縫紉機臂部 21A 縫紉機臂部前端部 22 阻針件 23 縫紉機床部 24 縫紉機機架 . . --- (請先閱讀背面之注意事項再填寫本頁) · 線· 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐）. Thread · This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) 1228161 A7 _B7 V. Description of the invention (, IV) 15 Needle thread rocker 16 Needle thread rocker 21 Sewing machine arm 21A Sewing machine arm Front part 22 Needle stopper 23 Sewing machine part 24 Sewing machine frame .. --- (Please read the precautions on the back before filling this page) National Standard (CNS) A4 (210 X 297 mm)