1354722 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種鏈缝缝紉機，尤其是指一種通過改變 鏈缝縫紉機的彎針高度而防止針線之間的交織，確保不形 成線跡的鏈缝缝纺機的線跡跳針裝置。 【先前技術】 圖1(A)所示，鏈缝鏠紉機通常適用於牛仔褲（jeans> 的褲腰（waist belt)缝接作業，褲腰（W)是一種缝接在牛 仔褲（J)上端褲身周圍的帶狀布料。圖1(B)所示，使用至 少兩個以上的縫紉針在其上部與下部分別進行平行縫製工 序。 爲了高效率地縫製牛仔褲，通常會采取下列工序。 如圖1(B)所示，把褲身布料11的端部插入戴面略呈U型的 細長褲腰布料10的開口部内，在設定長度（A)内缝接各褲 身布料11與褲腰布料10，其後的設定長度（B)則形成沒有 縫接的線跡跳針部位（非縫合部位），然後重新在設定長度 (A)内進行縫接，按照上述間歇缝製方式連續進行縫接作 業。 爲了利用上述經過縫接的布料10, 11準備出可以製 作一套牛仔褲的布料，裁斷上述褲腰布料10的設定位置 C，C，按照圖2所示的箭頭D方向插入裁斷後的上述褲腰布 料10的裁斷截面10a，然後再縫接被插入的該端部後進行 截面處理。 5 1354722 完成上述工序後，可以快速地缝接大量褲身布料與 褲腰布料，最後顯著地提升了生產效率與作業效率。 ' 該褲身布料11與褲腰布料10 0之間的缝紉部先針對褲 • 腰布料10的裁斷戴面10a進行戴面處理後再進行缝接，和 不形成線跡跳針部位而連續縫接該褲身布料11與褲腰布料 10的時候相比，由於不需要重新解開褲腰布料10的裁斷截 面10a附近的線跡，因此可以大幅提高了作業效率。 ‘作爲工作人員人爲地製作線跡跳針部位的上述間歇 • 性縫紉手段的一例，下面結合圖3到圖6說明先前申請的日 本專利公開第2007-29151號發明，上述現有鏈缝缝紉機包 括：針棒14，具有安裝並固定在縫紉針12上的針保持部13 •，上/下移動機構（未圖示），可以使該針棒14上/下移動； 彎針（looper)15沿著缝製物的移送方向（X轴方向）擺動， 把彎針線（L)個別地插入該縫紉針12的缝紉線（T)線環 (loop)並貫穿而形成線跡；彎針維持機構20，可以調節該 胃 .彎針15的擺動量；擺動機構（未圖示），利用該彎針維持機 • 構20使該彎針15進行擺動運動；保持器彎針部70，其移動 •執跡和該彎針15的刀尖15a執道交叉，其保持器彎針銷31 - 作爲尖銳突塊可以在捕獲彎針線（L)的同時形成線環 (loop)形狀；往復動作機構（未圖示），使該保持器彎針部 70沿著Y軸方向進行往復運動；以及機架50，可以支援上 述各構成要素。 此時，該保持器彎針部70具有套蓋75並可以在縫紉 縫製物時阻止保持器彎針部7 0與彎針15的交織而得以防止 線跡（stich)形成，在縫紉作業過程中進入線跡跳針 6 丄乃4722 (skip)區段時該套蓋75移動到可以遮 的位置’使該套蓋75側面部的板狀防交二：器彎針銷71 該f針15與該保持器彎針銷71的交織而^塊74得以阻土 具有上述結構的現有鏈縫縫紉機J跡的形成。 在該套蓋75移動時利用導引件促使保持$、、跳針裝置’ 性往復運動，如果該套蓋75與保持器.彎^針部7G進打線 較低’移動將不_而使線跡跳針動/7G的零件精度 套蓋75的動作過財由於防交織突，暢’或者在該 之間的碰撞與摩擦而發生嗓音。 ’、呆持器彎針鱗71 而且’爲了使彎針線（L)貫穿該蠻 線作業時，彎針15只能沿著布料移送：：15而進行下部穿 擺動運動，因此穿線作#獨利。進彳了有限幅度的 【發明内容】 爲了解决現有技術的上述問題， 供一種使用致動器促 本發明的目的是提 ，有利於形成線跡=====行升降運動， 其與保持器彎針部之間的交織，從=離及回歸”且止 縫縫匆機的線跡跳針裳置。 ，地防止線跡的鏈 爲了實現上述目的，本發明在— 縫縫紉機的線跡跳針襞置適用於 &例中提供一種鏈 機：一彎針，進行平行於布料移送^單元的鏈縫縫甸 刀尖從上/下移動的縫料捕獲縫切綠=擺動運動並利用 穿入彎針線並使其貫穿；一保持 :奶卿）’然後 銷可以在該彎針的刀尖捕獲到彎 ^，其保持器·彎針 寻同時形成線環；以 7 1354722 及一彎針維持機構，可以調節該彎針的支援及擺動量，其 特徵爲包括下列單元：一上支撑塊，可以固定該彎針；致 動器，爲了使該上支撑塊移位元而提供驅動力；以及下支 撑塊，一側安裝該致動器，另一側連接到爲了使該彎針進 行平行於布料移送方向的擺動運動而提供驅動力的擺動軸 〇 在較佳實例中，該上支撐架塊憑藉該致動器的驅動力 沿著上下方向移位。 較佳地，該上支撑塊憑藉該致動器的旋轉驅動力而在 布料移送方向移動。較佳地，該致動器應該使用氣壓缸。 較佳地，該上支撑塊與下支撑塊之間的隔離空間還包 括可以在該上支撑塊沿著上下方向移動時加以導引的導引 棒。 本發明的另一較佳實施例中還包括一彈簧，安裝在該 導引棒的外周部上，可以在該上支撑塊及該下支撑塊之間 的隔離空間利用一定 '的彈性力吸收該上支撑塊朝下移動而 出現的衝擊。 較佳地，更具有一拘束棒内置於一工作缸，該拘束棒 的一側部貫通該上支撑塊，其外柱面則形成螺絲部並通過 螺絲結合在位於該上支撑塊上側部的拘束螺母。 較佳地，還包括一拘束螺栓，其一侧貫通該上支撑塊 並固定在該下支撑塊的固定部，另一側則在該上支撑塊的 上部突出並可以防止該上支撑塊脫離。 該拘束螺栓包括：一固定棒，呈圓柱形狀並貫穿該上 支撑塊的拘束孔，其一端插入該固定部的固定槽並被該固 8 1354722 定螺絲固定；以及一 寸大於該固定棒的截面積，可以防其尺 。 遺上支撑塊朝上脫離 較佳地，還包括一彈箬，安梦 ，可以在該拘束邻、在4固定棒的外周部上 认"“ 邛該支撑塊之間的隔離刹田- 的彈性力▲協助該上支撑塊朝下移動。叫離工間利用-定 以在縫1 刀:變二:=:二的==置可 了由於零件之_衝突與摩擦而發生的而有效地防止 =明具有可以改變彎針高度的從而有效地 運動持器料上使用套蓋而一往右 支援在穿插f針線時，本發明允料在該上侧 支棱免維持下降_的情形下騎針轉，因此可以輕易 地執行彎針線的穿線作業。 【貪施方式】 下面結合附圖對本發明的較佳實施例做進一步說明。 圖7疋本發明較佳實施例的鏈縫縫紉機的線跡跳針裝置的 分解立體圖，圖8是本發明較佳實施例的鏈縫縫紉機的線 跡跳針裝置的使用狀態圖。 如附圖所示，爲了在縫紉時跳過線跡而阻止交織的鏈 縫縫紉機的線跡跳針裝置包括彎針110、上支撑塊12〇、致 動器130、下支撑塊140、導引棒150及拘束螺栓160。 9 1354722 該彎針110呈鐮刀形狀，其前方爲尖銳的插入部m， 可以和保持器彎針銷171—起參與交織作業。該保持器彎 針銷171在縫紉機的運動軸173尾端的保持器彎針部17〇側 面突出。 該上支撑塊120的一側有多個導孔丨21垂直貫通，另一 側則有拘束孔122垂直貫通。 在本實施例中，該致動器13〇使用氣壓缸並包括：本 體部131 ;工作缸132，呈圓筒狀，内置於該本體部131 ; 以及拘束棒133，呈圓柱狀，内置於該工作缸132。該工作 缸132的上側尾端和該上支撑塊12〇的下端部之間形成面接 觸。該拘束棒133貫通該.上支撑塊丨2〇 ,其一側部突出於該 上支撑塊120的上侧並和拘束螺母135結合。因此，該拘束 螺母135可以阻止該上支撑塊12〇朝上脫離，該工作缸132 則支援該上支撑塊120的下部。在本發明的另一實施例中 ’該工作缸132的内面形成螺絲部（未圖示），該拘束棒133 的另一側部形成螺絲部並通過螺絲結合在該工作缸丨32的 螺絲部。 忒下支撑塊140的一侧突出了其上部为固定槽144的固 定部143’另-侧则具有多个安裝槽142。該固定部143的 側面具有其内柱面形成了螺絲部的固定件145，固定螺絲 146通過螺紋方式結合在該固定件145上。該下支撑塊⑽ 的側面具有貫㈣固定孔⑷並與肋機的肋㈣7結合 〇 本發明具有多個該導引棒15〇，其下端部插入該下支 撑塊140的安裝槽】42 ’上$部則插入該上支撑塊12〇的導 10 1354722 孔121 ’在該導引棒15〇的外周部上插入彈 上支撑塊12G及該下支撑塊14()之間的隔離空間。並位於該 位於該導引棒150外周部上的彈簧151可 塊⑽及該下切塊14〇之__” 上支撑 降時因爲上支撑塊⑽朝下移動而造成的衝擊二s針110升 §亥拘束螺栓16〇的一側是圓柱形狀的固 側是尺寸大於該固定棒161截面積且具有 ’另- =部=。該固定麵貫穿該上支撑魏二= 八螭插入該固定部143的固定槽144廿 束孔 絲腸以固定。該拘束部職於該上支 並且可以阻止該上支撐塊120朝上脫離。 的上側 外安Γ輔^彈示^拘束螺检160的固定棒161外周部上另 r稀助彈頁163，該輔助彈晉163可 另 及上支撑塊120上面之間利用一定 ^束部162 塊120朝下移動。 力協助該上支撑 下面對具有上述結構的本發明 機的線跡跳針裝置的動作進行詳細貫施例的鏈縫縫紉 110和保持器彎針銷171 一起參鱼交月縫紉時，彎針 形成線跡；到了不需要線跡的線跳=並且在縫製物上 120將隨著致動器130的工作缸2針區段時’上支撑塊 動。 下移動而跟著朝下移 固定在該上支撑塊12〇上的彎 響而移動到該保持器彎針銷171的τ叉到上述動作的影 織作業。隨著該彎針11〇無法參與^，攸而難以參與交 織作業而中止線跡作業。 ’、持益者針銷171的交 11 1354722 另外’進入需要形成線跡的區段時，該致動器130的 該工作缸132朝上移動，該上支撑塊120也跟著朝上移動， 該彎針110受到上述動作的影響而移動到可以和該保持器 彎針銷171進行交織的高度。因此，該彎針11〇可以參與交 織而在縫製物上形成線跡。 則人厂，丨午个私η—頁她們雄热使用軋缓缸作爲該致動 器130並驅使該上支撑塊120沿著上/下方向移動，但本發1354722 IX. Description of the Invention: [Technical Field] The present invention relates to a chain stitch sewing machine, and more particularly to a chain seam which prevents the stitching between the needle threads by changing the height of the looper of the chain stitch sewing machine, and ensures that no stitches are formed. The stitching device of the sewing machine. [Prior Art] As shown in Fig. 1(A), the chain stitching machine is generally suitable for the seaming of jeans (jeans>, waist belt (W) which is a seam at the upper end of the jeans (J). As shown in Fig. 1(B), at least two or more sewing needles are used to perform a parallel sewing process on the upper and lower portions. In order to efficiently sew jeans, the following steps are usually taken. (B), the end portion of the trousers fabric 11 is inserted into the opening of the elongated waistband fabric 10 having a slightly U-shaped surface, and the trousers fabric 11 and the waistband fabric 10 are sewn together in the set length (A). After the set length (B), a stitch jumper portion (non-stitched portion) is formed without stitching, and then stitching is performed again within the set length (A), and the stitching operation is continuously performed in accordance with the above-described intermittent sewing method. By using the above-mentioned sewn fabrics 10, 11 to prepare a fabric in which a set of jeans can be prepared, the set positions C and C of the waistband fabric 10 are cut, and the cut waist fabric 10 is inserted in the direction of the arrow D shown in FIG. Cut the section 10a, then After the end portion to be inserted is sewed, the cross-section treatment is performed. 5 1354722 After the above steps are completed, a large amount of the trousers fabric and the waistband fabric can be quickly sewn, and the production efficiency and work efficiency are remarkably improved. 11 The sewing portion between the waistband fabric and the waistband fabric 10 is first subjected to the wearing treatment for the cut surface 10a of the waist fabric 10, and then stitched, and the seam fabric is continuously sewn without forming the stitching portion. Compared with the case of the waistband fabric 10, since it is not necessary to re-open the stitches in the vicinity of the cut section 10a of the waistband fabric 10, the work efficiency can be greatly improved. 'The above-mentioned workmanship is made by the staff. An example of the intermittent sewing apparatus, the prior art Japanese Patent Laid-Open Publication No. 2007-29151, which includes a needle bar 14 having a mounting and fixing on the sewing needle 12, is described below with reference to Figs. Needle holding portion 13 • Up/down moving mechanism (not shown), the needle bar 14 can be moved up/down; looper 15 is along the moving direction of the sewing object (X-axis direction) Swinging, the looper thread (L) is individually inserted into the sewing thread (T) loop of the sewing needle 12 and penetrates to form a stitch; the looper maintaining mechanism 20 can adjust the amount of swing of the stomach. a swinging mechanism (not shown) for swinging the looper 15 by the looper maintaining mechanism 20; the retainer looper portion 70, the movement/destruction and the tip 15a of the looper 15 Crossing, the retainer loop pin 31 - as a sharp projection, can form a loop shape while capturing the looper thread (L); a reciprocating mechanism (not shown), the retainer looper portion 70 The reciprocating motion is performed in the Y-axis direction; and the frame 50 can support the above-described components. At this time, the retainer loop portion 70 has the cover 75 and can prevent the interlacing of the retainer loop portion 70 and the looper 15 during sewing of the sewn material to prevent the formation of a stitch during the sewing operation. When the jumper jumper 6 is in the 4722 (skip) section, the cover 75 is moved to a position where it can be covered, so that the plate-shaped anti-crossing of the side of the cover 75 is made: the hook pin 71, the f-pin 15 and The interlacing of the retainer loop pin 71 allows the formation of the conventional chain stitch sewing machine J trace having the above structure. When the cover 75 is moved, the guide member is used to urge the holding of the $, and the jumping device to reciprocate. If the cover 75 and the holder. The bending portion 7G is in a lower line, the movement will not be _ The movement of the ejector pin/7G part precision cover 75 is excessive due to the anti-interlace, smooth or a collision between the collision and friction. ', the holder bends the needle scale 71 and 'In order to make the looper thread (L) run through the line, the looper 15 can only move along the cloth: 15 and perform the lower swinging movement, so the thread is made #独利. In order to solve the above problems of the prior art, an object for promoting the present invention by using an actuator is to facilitate the formation of a stitch ===== line lifting movement, which is related to the holder The interlacing between the curved needle portions, from the = separation and return" and the stitching of the stitching seams are skipped. The chain of the anti-stitch is prevented. In order to achieve the above object, the stitch jump of the sewing machine of the present invention The needle clamp is suitable for the case of & a chain machine: a curved needle, which is carried out in parallel with the fabric to transfer the unit. The slit of the chain is moved from the upper/lower seam to capture the seam cut green = swing motion and wear Into the looper thread and make it through; one hold: milk Qing)) Then the pin can capture the bend at the tip of the looper, and the retainer and the looper are simultaneously formed into a loop; with 7 1354722 and a looper maintained a mechanism for adjusting the amount of support and swing of the looper, characterized in that it comprises the following unit: an upper support block for fixing the looper; and an actuator for providing a driving force for shifting the upper support block; and Lower support block, the actuator is mounted on one side The other side is connected to a swing shaft that provides a driving force for causing the looper to perform an oscillating motion parallel to the direction in which the cloth is conveyed. In a preferred example, the upper support block is driven up and down by the driving force of the actuator Preferably, the upper support block is moved in the cloth transfer direction by the rotational driving force of the actuator. Preferably, the actuator should use a pneumatic cylinder. Preferably, the upper support block and the lower portion The isolation space between the support blocks further includes a guide rod that can be guided when the upper support block moves in the up and down direction. Another preferred embodiment of the present invention further includes a spring mounted on the guide rod On the outer peripheral portion, the isolation space between the upper support block and the lower support block can absorb the impact of the upper support block moving downward by a certain 'elastic force. Preferably, there is a restraint rod built in. In a working cylinder, one side of the restraining rod penetrates the upper supporting block, and the outer cylindrical surface forms a screw portion and is screwed to the restraining nut at the upper side portion of the upper supporting block. Preferably, the restraining nut is further included. a bolt having one side penetrating the upper support block and fixed to the fixing portion of the lower support block, and the other side protruding from the upper portion of the upper support block and preventing the upper support block from being detached. The restraining bolt includes: a fixing rod a cylindrical shape and extending through the restraining hole of the upper support block, one end of which is inserted into the fixing groove of the fixing portion and fixed by the fixing screw; and an inch larger than the sectional area of the fixing rod, the ruler can be prevented. Preferably, the support block is upwardly disengaged, and further includes a magazine, and the dream can be recognized on the outer circumference of the fixed rod, and the elastic force of the separation between the support blocks is recognized. ▲ Assist the upper support block to move downwards. Called from the use of the work - set in the seam 1 knife: change two: =: two == set can be effectively prevented due to the conflict of parts and friction = clearly have the ability to change the height of the looper and thus effective When the cover is used and the right support is applied to the right needle, the present invention allows the needle to be rotated in the case where the upper side edge is kept from falling, so that the threading of the hook thread can be easily performed. operation. [Grafting Mode] The preferred embodiments of the present invention will be further described below with reference to the accompanying drawings. Fig. 7 is an exploded perspective view showing a stitch jumper of a chain stitch sewing machine in accordance with a preferred embodiment of the present invention, and Fig. 8 is a view showing a state of use of the stitch jumper of the chain stitch sewing machine in accordance with a preferred embodiment of the present invention. As shown in the drawing, the stitch jump device for preventing the interlaced chain stitch sewing machine from skipping the stitches during sewing includes the looper 110, the upper support block 12A, the actuator 130, the lower support block 140, and the guide Rod 150 and restraint bolt 160. 9 1354722 The looper 110 has a sickle shape with a sharp insertion portion m in front thereof, and can participate in the interlacing work together with the retainer loop pin 171. The retainer loop pin 171 protrudes from the side of the retainer loop portion 17 of the end of the movement shaft 173 of the sewing machine. On one side of the upper support block 120, a plurality of guide holes 21 are vertically penetrated, and on the other side, the restraint holes 122 are vertically penetrated. In the present embodiment, the actuator 13A uses a pneumatic cylinder and includes a main body portion 131; a working cylinder 132 having a cylindrical shape and built in the main body portion 131; and a restraining rod 133 having a cylindrical shape and built therein Working cylinder 132. A surface contact is formed between the upper end of the cylinder 132 and the lower end of the upper support block 12A. The restraining rod 133 penetrates the upper support block 丨2〇, and a side portion thereof protrudes from the upper side of the upper support block 120 and is coupled to the restraining nut 135. Therefore, the restraining nut 135 can prevent the upper support block 12 from being detached upward, and the working cylinder 132 supports the lower portion of the upper support block 120. In another embodiment of the present invention, the inner surface of the cylinder 132 is formed with a screw portion (not shown), and the other side portion of the restraining rod 133 is formed with a screw portion and is screwed to the screw portion of the cylinder bore 32. . One side of the underarm support block 140 protrudes from the fixing portion 143' whose upper portion is the fixing groove 144, and the other side has a plurality of mounting grooves 142. The side surface of the fixing portion 143 has a fixing member 145 whose inner cylindrical surface forms a screw portion, and the fixing screw 146 is screwed to the fixing member 145. The side of the lower support block (10) has a through (four) fixing hole (4) and is coupled with the rib (four) 7 of the rib machine. The present invention has a plurality of the guide rods 15〇, and the lower end portion thereof is inserted into the mounting groove 42' of the lower support block 140. The portion 10 is inserted into the upper support block 12A. The guide 10 1354722 hole 121' inserts an isolation space between the upper support block 12G and the lower support block 14 () on the outer peripheral portion of the guide bar 15'. And the spring 151 located on the outer peripheral portion of the guiding rod 150 can support the lowering of the upper support block (10) due to the downward movement of the upper support block (10). One side of the 16-inch restraint bolt is a cylindrical shape, and the solid side is larger than the cross-sectional area of the fixed rod 161 and has a 'other-= part=. The fixed surface penetrates the upper support Wei 2 = the octagonal insertion of the fixing portion 143 The fixing groove 144 bundles the hole and the intestine to fix. The restraining portion works on the upper branch and can prevent the upper supporting block 120 from being detached upward. The upper side of the outer side of the ampule is attached to the outer periphery of the fixing rod 161 of the restraint screw 160. Further, the auxiliary elastic 163, the auxiliary elastic 163 and the upper support block 120 may be moved downward by a certain beam portion 162. The force assists the upper support to the present invention having the above structure. The action of the stitching device of the machine is carried out in detail. The chain stitching 110 of the embodiment and the retainer looper pin 171 are used together to form a stitch when the fish is engaged in the moon; the line jump without the stitch is = and On the sewing 120 will follow the needle section of the cylinder of the actuator 130 The upper support block moves downwardly and then moves downward to the yoke which is fixed to the upper support block 12 弯 and moves to the retainer yoke pin 171 to the above-mentioned action. 11〇 can't participate in ^, and it is difficult to participate in the interweaving work and stop the stitching operation. ', the intersection of the beneficiary pin 171 11 1354722 In addition, 'when entering the section where the stitch is required to be formed, the work of the actuator 130 The cylinder 132 moves upward, and the upper support block 120 also moves upward, and the looper 110 is moved to a height that can be interlaced with the retainer loop pin 171 by the above-described action. Therefore, the looper 11〇 It is possible to participate in the interweaving to form stitches on the sewing material. Then, the factory, the yin and the yin, use the rolling buffer as the actuator 130 and drive the upper support block 120 to move in the up/down direction. But this hair
明並不局限於此，在另一實施例中可以使用使用直線^ 機（Linear Motor)之類的線性電動機作爲該致 ; 通過旋轉運動驅使該上支撑塊12〇在布料移送方益丨川並 本發明雖然只針對具體實施例進 、°移動。 在本發明的技麟想料内，可 =明，但是 這在具有-般專業知識的同一 ：33種變形及修改， 。 仃業人士來說是非常明顯的 〜叼罹利乾圍不能 ，除了包括後述的權利要求書，其 良於上述實施例 也應該包含在本發明的權利範圍内j &圍内的技術思想 【固式間單說明】 圖1是牛仔褲的線跡及線跡 圖2是褲腰布料的裁斷部 十。卩的形成圖； 狀態圖； *略圖及其裁斷部的縫切 圖3是習用之鏈縫縫妨機的立體 圖4是習社鏈縫縫約機的綠跡跳針 體圖， 、置的重要部位立 12 1354722 圖5是習用之鏈縫縫切機的膏針的運動軌跡圖； 圖6是習用之鏈縫縫紉機的彎針周圍圖； 圖7是本發明較佳實施例的鏈缝缝紉機的線跡跳針裝置 的分解立體圖； 圖8是本發明較佳實施例的鏈縫缝紉機的線跡跳針裝置 的使用狀態圖； 圖9是本發明另一實施例的鏈縫缝紉機的線跡跳針裝置 的使用狀態圖。The present invention is not limited thereto, and in another embodiment, a linear motor such as a linear motor may be used as the guide; the upper support block 12 is driven by the rotary motion to transfer the cloth to the side of the machine. The invention moves only for specific embodiments. In the technical idea of the present invention, it can be = Ming, but this is the same as the general knowledge: 33 kinds of deformations and modifications. It is very obvious to the practitioners that it is not possible to do so. In addition to the claims described later, the above embodiments should also include the technical ideas within the scope of the invention. Figure 1 is the stitch and stitch of the jeans. Figure 2 is the cutting part of the waist fabric.形成 Formation diagram; State diagram; * Sketch diagram and slitting of the cutting section Figure 3 is a perspective view of the conventional chain seam sewing machine. Figure 4 is the green hopping needle body diagram of the Xishe chain seam sewing machine. 12 1354722 Fig. 5 is a trajectory diagram of a paste needle of a conventional chain seam slitter; Fig. 6 is a perspective view of a looper of a conventional chain stitch sewing machine; Fig. 7 is a stitch diagram of a chain stitch sewing machine according to a preferred embodiment of the present invention; FIG. 8 is a view showing a state of use of a stitch jump device of a chain stitch sewing machine according to a preferred embodiment of the present invention; FIG. 9 is a stitch jump device for a chain stitch sewing machine according to another embodiment of the present invention; Use state diagram.
【主要元件符號說明】 110 ： 彎針 111 :插入部 120 ： 上支撑塊 121 :導孔 122 : 拘束孔 130 :致動器 131 ： 本體部 132 :工作缸 133 ： 拘束棒 135 :拘束螺母 140 ： 下支撑塊 141 :固定孔 142 : 安裝槽 143 :固定部 144 ： 固定槽 145 :固定件 146 : 固定螺絲 147 :擺動軸 150 ： 導引棒 151 :彈簧 160 ： 拘束螺栓 161 :固定棒 162 ： 拘束部 163 :輔助彈簧 170 : 保持器彎針部 171 :保持器 173 ： 運動轴 180 :針棒 181 ： 縫紉針支援部 182 :縫紉針[Description of main component symbols] 110 : Bent needle 111 : Insertion part 120 : Upper support block 121 : Guide hole 122 : Restricted hole 130 : Actuator 131 : Main body part 132 : Working cylinder 133 : Restricting rod 135 : Restraint nut 140 : Lower support block 141: fixing hole 142: mounting groove 143: fixing portion 144: fixing groove 145: fixing member 146: fixing screw 147: swinging shaft 150: guiding rod 151: spring 160: restraining bolt 161: fixing rod 162: restraint Part 163 : Auxiliary spring 170 : Retainer curved needle portion 171 : Retainer 173 : Movement shaft 180 : Needle bar 181 : Sewing needle support portion 182 : Sewing needle
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