A 6 Η 6 經濟部屮央標準局Μ工消赀合作杜印製 五、發明説明（i ) (産業上之利用範圍） 本發明傺有關於一種於it遵或環縫之暗縫縫紉機中， 可與暗針之作動同步將布間歇性地推壓至壓布部之暗縫縫 紉機。 (習知技術） 於暗縫鏠紉機之布之推壓裝置，在呈可上下自由移動 狀地安裝在框體之軸承構件上，乃幾乎水平地軸支有可以 一定的角度於圓周方向往復回動之回動軸，在該回動軸之 一端，除了設有可與回動軸一起回動於圓周方向，而將布 推壓至壓布部之柱塞（提布部）外，亦在軸承構件與設在 框體之調整螺栓之間，設有當軸承構件朝上方移動時，可 使柱塞接近壓布部般地加以彈壓之彈壓彈簧（待公昭60 一 3 2 4 6 4號公報）。 ------- ^〜- 該推壓裝置，則如進行褲腳之反折部之縫合部分般， 當布被重合多次而其厚度變大之部分移動到壓布部與柱塞 之間時，則軸承構件會令彈壓彈簧撓曲而朝下方移動，而 使柱塞下降一布厚度之增加部分。又彈壓彈簧之彈力可藉 調整螺栓而調節。 (本發明所要解決的問題） 在上述習知之布之推壓裝置中，由於使用短的彈壓彈 簧，因此當布之厚度變化時，則彈壓彈簧之彈力會大大地 變化，而對暗縫有惡劣的影遒。此外位在上述褲腳之反折 (請先閲讀背而之注意事項再项寫本頁) 裝· 訂- 線- 本紙》•尺度边用中B Η家標準(CHS) ΊΜ規格(210X297公龙)A 6 Η 6 Printing by the Ministry of Economic Affairs, Bureau of Standards, Ministry of Industry, M. D. Printing 5. Description of the invention (i) (Scope of use in the industry) The present invention relates to a dark seam sewing machine that conforms to it or circular seam, A concealed sewing machine that can push the cloth intermittently to the cloth pressing section synchronously with the operation of the concealed needle. (Conventional technology) The pressing device for the cloth of the blind seam sewing machine is installed on the bearing member of the frame body in a freely movable up and down state, but the shaft is supported almost horizontally with a certain angle and can be reciprocated in the circumferential direction at a certain angle The moving reversing shaft, at one end of the reversing shaft, is provided with a plunger (cloth lifting part) which can move back in the circumferential direction together with the reversing shaft and push the cloth to the cloth pressing part. Between the bearing member and the adjustment bolt provided in the frame body, there is an elastic spring that can urge the plunger close to the cloth pressing portion when the bearing member moves upwards (to be published in Gazette 60-1 3 2 4 6 4 ). ------- ^ ~-The pressing device moves like the sewing part of the fold-back part of the trousers, when the cloth is overlapped many times and its thickness becomes larger, it moves to the part between the cloth pressing part and the plunger Over time, the bearing member will deflect the spring and move downward, causing the plunger to drop by an increase in the thickness of the cloth. The spring force of the spring can be adjusted by adjusting the bolt. (Problem to be solved by the present invention) In the above-mentioned conventional cloth pressing device, since a short elastic spring is used, when the thickness of the cloth changes, the elastic force of the elastic spring will greatly change, which is bad for the blind seam Of the shadow. In addition, the above-mentioned trousers are reversed (please read the precautions before writing this page) Binding · Binding-Line-This Paper "• Standard Side Use B Η Family Standard (CHS) ΊΜ Specification (210X297 Male Dragon)
21390J Λ 6 Ιί 6 經濟部中央標準局工消赀合作社印製 五、發明説明（2 ) 部之縫合部分之布的積層數目，通常為4個，當想把該部 分將線最終地加以牖藏，而當更加反折進行暗縫時，由於 縫合部分乃呈三層重合，因而積層數則變成6個。 又在理論上，若使用長的彈壓彈簧雖可解決上述的問 題，然當採用長的彈壓彈簧時，由於彈力之調整幅度變得 過大，而最好在1次旋轉之内進行調整操作之調整螺栓， 則變得需要旋轉多次，遂使得調整變得極端的麻煩。其結 果習知之推壓裝置之構造，僅藉改變彈壓彈簧之長度，並 無法得到柱塞彈壓力之變動範圍小，又容易調整其彈壓力 之布的推壓裝置。 本發明之目的，即是在提供一除了可減小柱塞彈壓力 之變動幅度外，亦可容易且正確地調整其彈壓力之暗縫縫 紉機。 (解決問題之手段） 為了要達到上述之目的，本發明其主要偽：依一定角 度而可在圓周方向往復回動之回動軸，其軸方向如與軸承 構件之移動方向幾乎直交地被軸支，而該軸承構件呈自由 移動狀地安裝在框體，而在該回動軸之一端則安裝有可與 回動軸一起回動於圓周方向，且將布推壓至壓布部之柱塞 ，其特徽在於：在上述軸承構件連結有一可以支點構件為 支點而回動之回動桿的一端，而於該回動捍則連結有彈簧 機構，該彈簧機構係以一如可藉上述軸承構件之移動，柱 塞會接近壓布部般地，以支點構件為支點而令回動捍回動 (請先閲讀背而之注总事項#艰寫木页) 裝· 訂 線· 本紙張尺度边用中困a家標华(CNS)甲4規格（2]ΟX297公； -4 - 經濟部中央標準局只工消t合作社印製 挪， 五、發明説明（） 3 之彈壓彈簧為主體，又上述支點構件，則於回動桿之軸方 向相對於上述彈簧設成相對移動狀。 (作用） 使支點構件可相對於彈簧機構相對地移動，當支點構 件與彈簧機構間之距離相對於支點構件與柱塞間之距離的 比率變大時，則彈簧機構之柱塞彈壓力即變大，又當上述 之比率變小時，則柱塞彈壓力亦變外。 又當彈簧機構使用長度長的彈壓彈簧，雖然柱塞彈壓 力相對於布厚度之變化的變化幅度變小，然此時亦可容易 且正確地調整柱塞彈壓力。 (實施例） 圖面偽本發明之一實施例。圖中符號1偽框體，在框 體1則於一定之間隔水平且相互平行地設有上下一對的固 定軸2、3。在各固定軸2、3則分別軸支有軸承構件4 、5。各軸承構件4、5則可以各固定軸2、3為中心而 上下地自由回動。 在各軸承構件4、5之自由端分別地軸支有回動軸6 、7。而各回動軸6、7則設成與各固定軸2、3平行。 在各回動軸6、7之在第1圖中之左側的端部，則分別固 定有扇形之柱塞8、9。各柱塞8、9偽與各回動軸6、 7—起於圓周方向交互地回動，而將布朝壓布部1〇2、 1 Π 2 (有關詨駆布邬讅兹後梂）加以推厭__ Λ 6 Β6 (請先閲讀背而之注意事項再堝寫木頁) 裝· 訂- 線. 一 5 - Λ fi Ii6 經濟部屮央榀準局员工消赀合作社印製 五、發明説明（4 ) 又設在框體1之右側（第1圖）之軸承10、1 1, 則如具有與上述固定軸2、3之上下間隔相同間隔般地， 上下一對的驅動軸12、 13,乃如將軸方向與固定軸2 、3之軸方向平行對齊般地被軸支。又，各驅動軸12、 1 3，則對應於各回動軸6、7而設在其延長線上。 在各驅動軸12、 13之各回動軸6、 7側之端部， 則分別固定有前端備有可自由回動之滑動件14、 15, 之驅動臂16、 17。在各回動軸6、 7之驅動軸12、 1 3側的端部，則分別固定有備有滑溝1 8 a、1 9 a之 從動臂18、 19,而將驅動臂16、 17之各滑動件 14、 15呈自由滑動狀地嵌合在各滑溝18a、 19a Ο 因此當各驅動軸12、 13朝圓周方向回動時，該回 動可經由驅動臂16、 17滑動件14、 15以及從動臂 18、 19,而被傳達至各回動軸6、 7,且該各回動軸 6、 7則朝圓周方向回動。當各回動軸6、 7相對於驅動 軸1 2、1 3移動時，各滑構件1 4、1 5即於各滑溝 18a、 19a滑動，而將回動傳達至各從動臂18、 1 9 〇 在各驅動軸1 2、1 3則分別固定有齒輪2 ◦、2 1 ，而彼此嚙合著。而位在下方之驅動軸1 3之齒輪2 1、 則設得較位於上方之驅動軸1 2之齒輪2 0為大。而回動 半徑小之位在上方之柱塞8的周緣部，與回動半徑大之位 在下方之柱塞9之周緣部的回動寬度乃形成幾乎相等。在 (請先閲誚背而之注意事項孙埙寫木π) 本紙張尺度边用中a 8家標爭（CNS) 規格(210Χ297公;¢) -6 - 經濟部中央榣準局月工消"合作社印製 ： 五、發明説明（5 ) 上方之驅動軸1 2 ,則遊嵌有與齒輪2 0相同直徑之齒輪 2 2 ,而此則嚙合於齒輸2 1。又齒輪2 2則藉止擋螺栓 (未圖示）而被止擋，藉此可防止齒輸2 1之背隙（ backlash) 〇 在下方之驅動軸13則固定有搖動桿23,在該搖動 捍23之前端，則藉銷25結合有搖動臂24之一端，而 在搖動臂24之另一端乃形成有圓孔24 a。又在該圓孔 2 4a,則嵌入有可藉驅動裝置（未圖示）而旋轉之旋轉 軸2 6的偏心輸2 7。 在各軸承構件4、 5之自由端，則經由球接頭等之自 由接頭32、 33分別連接有回動桿30、 31之一端。 各回動桿30、 31,則藉支點構件34、 35而分別支 撑其中間部分。各支點構件34、 35,則一體備有止轉 部34a、 35a與螺栓部34b、 35b,而在形成框 體1之長孔la、lb則嵌入有各止轉部34a、35a ,除了各螺栓部34b、 35b突出於框體1之前面（第 6圖之右側）外，亦將轉鈕36、 37分別螺合在各螺栓 部34b、35b,而被安裝在框體1。而各止轉部34 a、35 a乃形成長方形狀，而可防止各支點構件34、 35的自由旋轉，且可沿著長孔la、 lb自由移動。 在各回動桿30、 31之另一端，則藉球接頭等之自 由接頭40、4 1分別連接有連桿38、39之上端。而 各連桿38、 39之下端，則藉球接頭等之自由接頭等分 別連接至雙臂曲柄（bell crank) 44、45之一端。各 Λ 6 1(6 (請先閲讀背而之注意事項#艰寫木灯) 本紙張尺度逍用中曲《家標準(CNS)T4規格(210X21J/公釐) -7 - 經濟部屮央標準局Μ工消赀合作社印製 21^^ : 五、發明説明（6 ) 雙臂曲柄44、45,則藉樞軸46、47呈自由回動狀 地被安裝在其他之框體2 8，而在另一端則分別連接有彈 壓彈簧48、49之一端。各彈壓彈簧48、49之另一 端乃分別地連結至螺桿50、 51,而在各螺桿50、 5 1則分別螺入有設在框體1之調整螺帽5 2、5 3。 彈壓彈簧48、49,雙臂曲柄44、45以及連桿 38、39等乃分別構成彈簧機構54、55。各彈簧機 構54、 55,可使各回動桿30、 31以支點構件34 、35為支點而回動，而使柱塞8、 9上昇。 在柱塞8、9之第1圖中的左右，則配設有壓構件 5 6。該壓構件56,則藉銷59可於上下自由回動狀地 安裝在壓桿58之一端，該壓桿58則以安裝軸57 (參 照第3圔）為支點而可上下自由回動狀地被安裝在框體1 。該壓桿58則如與被螺合在框體1之螺軸60抵接而停 止般地藉螺旋彈簧61朝上方彈壓。在該壓構件56之上 方，則設有可在垂直面的循環移動，而送布之輸送齒（未 點示）。該輸送齒乃為習知。 另一方面被配置在柱塞8、 9之上的壓力部102、 103,則如第7圖及第8圔所示，乃對應於各柱塞8、 9設有2個。而藉貫通該些壓布部102、 103之樞軸 1 0 1 ,而呈可於上下自由回動（搖動）狀地被支持著。 而在其中一壓布部102的中央部分穿設有螺孔1〇2b ，又在另一壓布部103的中央部分，則形成直徑較上述 螺孔102b,又在另一壓布部103的中央部分，則形 Λ 6 η 6 (請先閲讀背而之注意事項*堝窩木頁) 裝· 訂_ 線< 本紙5艮尺度边用中國Η家標準(CNS)T4規格(210x297公龙) -8 - Λ 6 II 621390J Λ 6 Ιί 6 Printed by the Ministry of Economic Affairs Central Standards Bureau Industrial Consumers Cooperatives V. Description of Invention (2) The number of layers of the stitched part of the cloth is usually 4, when you want to finally hide the part of the thread However, when the blind seam is more reversely folded, the stitched part is overlapped in three layers, so the number of stacked layers becomes 6. In theory, although using a long compression spring can solve the above problems, when using a long compression spring, the adjustment range of the elastic force becomes too large, so it is best to adjust the adjustment operation within 1 rotation The bolts have to be rotated many times, making adjustment extremely troublesome. As a result, the structure of the conventional pressing device can only be obtained by changing the length of the spring, and the change range of the plunger's spring pressure is small, and the cloth's spring pressure can be easily adjusted. The object of the present invention is to provide a concealed sewing machine which can reduce the variation range of the plunger elastic pressure and can adjust the elastic pressure easily and correctly. (Means for solving the problem) In order to achieve the above-mentioned object, the present invention is mainly pseudo: a reversing shaft that can reciprocate in a circumferential direction according to a certain angle, whose axis direction is almost perpendicular to the direction of movement of the bearing member The bearing member is mounted on the frame in a free-moving state, and at one end of the reversing shaft is installed a column that can revolve with the reversing shaft in the circumferential direction and push the cloth to the cloth pressing portion The special emblem of the plug is that the bearing member is connected to one end of a return rod that can be pivoted by the pivot member as a fulcrum, and a spring mechanism is connected to the return rod. The spring mechanism is as described above. When the bearing member moves, the plunger will be close to the cloth pressing part, and the fulcrum member will be used as the fulcrum to make the movement back and back (please read the back and the note general matters # 难 写 木 页) Standard use in the middle of the trapped a Jiabiaohua (CNS) A 4 specifications (2) OX297; -4-Printed by the Central Standards Bureau of the Ministry of Economic Affairs, only printed by the cooperative, V. Description of the invention () 3 The spring is the main body , And the above fulcrum member, then on the axis of the reversing lever The direction is set to be relatively movable with respect to the above-mentioned spring. (Function) The fulcrum member can be moved relative to the spring mechanism when the ratio of the distance between the fulcrum member and the spring mechanism to the distance between the fulcrum member and the plunger becomes larger , The plunger spring pressure of the spring mechanism becomes larger, and when the above ratio becomes smaller, the plunger spring pressure also becomes outside. And when the spring mechanism uses a long length of spring compression, although the plunger spring pressure is relative to the thickness of the cloth The change range of the change becomes smaller, but the plunger spring pressure can also be adjusted easily and correctly at this time. (Example) The figure is pseudo one embodiment of the present invention. The symbol 1 in the figure is a pseudo frame, and the frame 1 is A pair of upper and lower fixed shafts 2 and 3 are provided horizontally and parallel to each other at a certain interval. On each fixed shaft 2, 3 are bearing members 4 and 5, respectively. Each bearing member 4 and 5 can fix each shaft 2. 3 and 3 are free to move up and down as the center. At the free ends of the bearing members 4, 5 are respectively supported by the reversing shafts 6, 7. The reversing shafts 6, 7 are set to the fixed shafts 2, 3. Parallel. In each of the reversing axes 6, 7 in the first figure At the left end, fan-shaped plungers 8, 9 are fixed respectively. Each plunger 8, 9 pseudo-reciprocates with each of the reversing shafts 6, 7 in the circumferential direction, and moves the cloth toward the cloth pressing part 1. 〇2, 1 Π 2 (Relate to the arrogance of 駨 駆 布 邬 兹) and then push it __ Λ 6 Β6 (please read the precautions first and then write the wooden page) Binding · Book-Line. 1 5-Λ fi Ii6 Printed by the Employee Consumer Cooperative of the Central Bureau of Economic Affairs of the Ministry of Economic Affairs V. Description of the invention (4) Bearings 10, 1 1, which are located on the right side of the frame 1 (Picture 1) 1 3, the upper and lower intervals are at the same interval, and the pair of upper and lower drive shafts 12, 13 are supported by the shaft as if the axis direction is parallel to the axis direction of the fixed shafts 2 and 3. The drive shafts 12, 1 3, corresponding to each reversing axis 6, 7 and set on its extension line. At the ends of the drive shafts 12 and 13 on the sides of the reversing shafts 6 and 7 respectively, drive arms 16 and 17 with freely movable slides 14 and 15 at the front end are respectively fixed. At the ends of the drive shafts 12 and 13 sides of the reversing shafts 6 and 7, the driven arms 18 and 19 equipped with the chute 1 8 a and 1 9 a are respectively fixed, and the drive arms 16 and 17 The sliders 14 and 15 are fitted in the sliding grooves 18a and 19a in a free-sliding manner. Therefore, when the drive shafts 12 and 13 move back in the circumferential direction, the back movement can pass through the drive arms 16 and 17 15 and the driven arms 18 and 19 are transmitted to the reversing shafts 6 and 7, and the reversing shafts 6 and 7 revolve in the circumferential direction. When each of the reversing shafts 6, 7 moves relative to the driving shafts 1, 2, 1 3, the sliding members 14 and 15 slide on the sliding grooves 18a and 19a, and the reciprocating motion is transmitted to the driven arms 18 and 1 9 〇 Gears 2 ◦, 2 1 are fixed to the drive shafts 1 2 and 1 3 respectively, and mesh with each other. The gear 21 of the drive shaft 13 below is set larger than the gear 20 of the drive shaft 12 above. On the other hand, the periphery of the plunger 8 with the smaller return radius and the periphery of the plunger 9 with the larger return radius are almost equal. In (please read the precautions first, Sun Xun writes wood) This paper is used in the standard a 8 standard (CNS) specifications (210Χ297 g; ¢) -6-Ministry of Economic Affairs Central Bureau of Standards Monthly Work Consumer " Printed by the cooperative: V. Description of the invention (5) The upper drive shaft 1 2 has a gear 2 2 of the same diameter as the gear 20, and this meshes with the gear 2 1. The gear 2 2 is stopped by a stop bolt (not shown), thereby preventing backlash of the tooth loss 21. The drive shaft 13 below is fixed with a rocking lever 23, and the rocking At the front end of the guard 23, one end of the swing arm 24 is combined with the borrow pin 25, and a round hole 24a is formed at the other end of the swing arm 24. In the round hole 24a, an eccentric shaft 27 of a rotating shaft 26 which can be rotated by a driving device (not shown) is embedded. At the free ends of the bearing members 4, 5 are connected to one ends of the return rods 30, 31 via free joints 32, 33 such as ball joints. Each of the reversing levers 30 and 31 respectively supports the middle part by supporting members 34 and 35. Each fulcrum member 34, 35 is integrally provided with rotation stop parts 34a, 35a and bolt parts 34b, 35b, and the rotation stop parts 34a, 35a are embedded in the long holes la, lb forming the frame 1, except for the bolts The parts 34b and 35b protrude out of the front surface of the housing 1 (the right side in FIG. 6), and the knobs 36 and 37 are also screwed to the bolt parts 34b and 35b, respectively, and are mounted on the housing 1. The rotation-preventing portions 34 a and 35 a are formed in a rectangular shape to prevent the pivoting members 34 and 35 from freely rotating and to move freely along the long holes la and lb. At the other end of each of the reversing levers 30, 31, the upper ends of the connecting rods 38, 39 are connected by free joints 40, 41 of ball joints or the like, respectively. The lower end of each connecting rod 38, 39 is connected to one end of a bell crank 44, 45 by a free joint such as a ball joint. Each Λ 6 1 (6 (please read the back and attention matters # difficult to write wooden lamps) This paper standard is easy to use "Home Standard (CNS) T4 Specification (210X21J / mm) -7-Ministry of Economic Affairs Standard 21 ^^ printed by the bureau co-operative consumer cooperative: V. Description of the invention (6) The two-arm cranks 44, 45 are installed on other frames 28 by pivots 46, 47 in a free-returning state, and At the other end, one ends of the springs 48 and 49 are respectively connected. The other ends of the springs 48 and 49 are respectively connected to the screws 50 and 51, and the screws 50 and 51 are screwed into the frame respectively. Adjusting nuts 5 2 and 5 3 of the body 1. The springs 48 and 49, the cranks 44 and 45 of the two arms and the connecting rods 38 and 39 constitute spring mechanisms 54 and 55. The spring mechanisms 54 and 55 can make The moving rods 30 and 31 move back with the fulcrum members 34 and 35 as fulcrums to raise the plungers 8 and 9. On the left and right sides of the first figure of the plungers 8, 9 are provided pressing members 56. With the pressing member 56, the borrow pin 59 can be mounted on one end of the pressing rod 58 to freely move up and down, and the pressing rod 58 can be freely moved up and down using the mounting shaft 57 (refer to the third circle) as a fulcrum An In the frame 1. The pressing rod 58 is urged upward by the coil spring 61 as if it abuts on the screw shaft 60 screwed to the frame 1. Above the pressing member 56, there is a Circulation movement of the vertical plane, and the feeding teeth of the cloth (not shown). The feeding teeth are conventional. On the other hand, the pressure parts 102, 103 arranged above the plungers 8, 9 are like the 7th. As shown in the figure and the eighth circle, two plungers 8 and 9 are provided. By pivoting through the pivots 101 of the pressing parts 102 and 103, it is possible to move back and forth freely (shake) ) Is supported. And one of the clamping parts 102 is provided with a screw hole 102b in the central part, and in the central part of the other clamping part 103, a screw hole 102b with a diameter larger than the above is formed in The central part of the other pressing part 103 has the shape Λ 6 η 6 (please read the precautions on the back * the wooden sheet of the pot). Binding · Binding _ Line &5; This paper uses the Chinese standard (CNS standard) ) T4 specification (210x297 male dragon) -8-Λ 6 II 6
經濟部屮央標準局貝工消费合作杜印M 五、發明説明（7) 形直徑較上述螺孔1 〇2b為大的透孔1 〇3b。在2個 壓布部1 ◦ 2、1 0 3之間則設有前端備有導引部1 2 0 a之導引板120,該導引板120乃將其導引部120 a配置在壓布部l〇2a、103a之間，而與壓布部 102、 103同樣地呈可上下自由回動狀地樞接在樞軸 1 0 1上，於其中央部分則形成大直徑的透孔1 〇 2 b。 上述壓布部102、103與導引板120,乃藉自 壓布部103側，經由透孔103b、120b被螺合在 另一壓布部102之締結螺栓（締結裝置）12 1而被締 結成一體。又締結螺栓121之直徑乃遠較透孔103b 、：L 2 0 b為小。因此壓布部1 〇 3與導引板1 2 0 ,乃 可調整相對於壓布部1 〇 2之於上下方向的相對位置。 在各壓布部102、 103之根端部乃設有朝上方突 出之突起102a、103a，於該突起102a、 103 a則分別抵接有被螺合在針板1 1 1之構件122 之止擋螺栓（止擋件）108、109的前端，而可限制 壓布部102、 103及導引板120朝上方之搖動範圍 ，遂防止過度回動。此外藉改變該止擋螺栓108, 109之螺入量，可調節對於壓布部102、 103之抵 接位置。上述樞軸1◦1則藉固定螺栓123被固定在構 件122。又推壓部l〇2a、l〇3a,則如朝下方下 降般地被彈簧112、 113所彈壓。 針1 1 6,則將藉其中一柱塞8而被上推，且藉壓布 部1 02之推壓部1 02a所推壓之布N的部分與藉另一 (請先閲讀背而之注意事項再塡寫本頁) 裝- 線· 本紙張尺度边用中B B家樣準(CNS) τ 4規格(210X297公龙） -9 - 2i3以 Λ (; Π6 經濟部中央櫺準局员工消费合作社印製 五、發明説明（8 ) 柱塞9而被上推，且藉壓布部103之推壓部103a所 推壓之布N的部分，於第9圖中，乃於垂直於紙面的方向 弧狀移動而文互地進行暗縫。而布N則於第9圖中自左方 被移送右方。 符號11 7則為被設在止擋螺栓108、109與構 件1 2 2之間的彈簧，而可防止各止擋螺栓1 0 8、 1 0 9的鬆弛。 其次說明上述構成之暗縫縫紉機的作用。 此外第8圖與第9圖像表褲子之褲腳之暗缝部分。端 緣Na,於缝製後在第8圖中乃被折向左方。因此該暗縫 部分乃被端緣N a所隱藏。而在第8圖中，上側則為禅子 之内側。 通常乃分別旋轉止擋螺栓108、 109而調節成使 可將布N重合3片之厚的布部分加以壓住之壓布部103 之推壓部103a,形成較將布N僅1H之薄的布部分加 以壓住之壓布部102之推壓部102a位於稍下方狀， 又導引板1 20之導引部1 20a則調節成較兩推壓部 102a、 103a稍下方，而鎖緊締結螺栓121,將 壓布部102、 103與導引板120締結成一體。 此外，當藉旋轉軸2 6使偏心輸2 7旋轉時，則搖動 臂24乃於第2圔中朝左右方向搖動，而將驅動軸13依 一定的角度朝圓周方向往復回動。 驅動軸13之上述回動動作，一方面則藉由驅動17 等被傳達至回動軸7,而另一方面則藉由齒輪21, 20 本紙5S·尺度边用中a B家標準(CNS) T4規格(210X21J7公;¢) ΓΤ (請先閲讀背而之注意事項#艰艿木頁) 經濟部t央標準局员工消费合作杜印製 ___n_6 五、發明説明（9) 與驅動臂1 6等被傳達至另一回動軸6。被安裝在各回動 軸6、 7之柱塞8、 9,則藉回動軸6、 7之上述的回動 ，而會相互地朝相反方向回動，而將布N交互地上推。 此時壓布部102、 103,則藉前端之推壓部 102a、 103a自上方推壓布N。因此在被暗縫之布 N之厚度厚之部分，則柱塞9會抵抗彈壓彈簧49的彈力 而自動地降下，而防止暗縫部分朝表面之脱缝或折針等之 障礙。 此外該厚布部分，由於藉柱塞9而上推的力量強，因 此在自壓布部1 0 3稍偏離外側之暗缝位置，則如第9圖 所示會稍朝上方膨出。但是如上所述，由於用於推壓厚布 部分之壓布部103乃調節成較用於推壓薄布部分之壓布 部10 2為下方，因此該厚布部分之該膨出量則會藉另一 柱塞8而被上推，而與藉壓布部102所推壓之薄布N部 分成同一高度。又針116,可對厚的部分與薄的部分同 樣地正確地進行暗縫。又導引板1 2 0 ,則藉其導引部 1 20a來導引布N之端線Na之反折部。 而跟隨2個柱塞8、 9所交互進行的推壓蓮動，2個 壓布部102、103與導引板120,會以樞軸101 為支點而上下回動。其朝上方之回動範圍乃藉止擋螺栓 108、 109所限制。假使2個壓布部102、 103 不能結合成一體時，藉柱塞8、 9之交互的推壓蓮動，會 導致柱塞未推壓側之壓布部産生暴露的現象。但是由於2 値壓布部102、103與導引板120,傜藉締結螺栓 (請先閲讀背而之注意事項再项寫木頁) 本紙張尺度边用中國B家標準(CNS)<T4規格(210X2(J7公址) -11 - 經濟部中央櫺準局負工消赀合作杜印製 五、發明説明（id 121彼止結合成一體，因此布N會藉柱塞9 (8)而被 推壓至其中一壓布部103 (102)之推壓部l〇3a (102a),且另一壓布部102 (103)之推壓部 102a (103a)的上下位置即不會改變，而經常保 持一定。因而對應於下降側之柱塞8、 9之壓布部102 、103卽不會任意地暴露，而在暗縫時，布N之狀態可 經常一起。 另一方面當各彈壓彈簧48、 49之柱塞彈壓力強時 ，則可鬆弛轉鈕36、37,將支點構件3 4.、35朝第 1圖中之左方移動，而將轉鈕36, 37轉緊，藉該操作 ,由於支點構件34、35與自由接頭40、4 1之間的 距離，相對於支點構件34、 35與柱塞8、 9之間之距 離的比率變大，因此各彈壓彈簧48、49之柱塞彈壓力 乃增強。而若將支點構件34、 35朝第1圖之右方移動 時，則可減弱彈壓彈簧48、49的彈力。 又藉操作調整螺帽52、 53可改變彈壓彈簧48、 49之張力，而可調整其彈力，然此一般偽在組配缝紉機 時進行， 以下則說明上述以外的實施例。 (1) 在圖中之實施例，雖然支點構件34、 35係 沿著回動桿30、 31而移動，然若令彈簧機構54、 55移動，亦可達到與上述同樣之目的以及效果。 (2) 將支點構件34、 35設在回動桿30、 31 之端部，使在該支點構件34、 35與柱塞8、 9之間， (請先閱讀背而之注意亊項洱埙寫木页) 本紙張尺度逍用中明a家標率(CNS) TM規怙(210X297公;《;) -12 - 經濟部中央標準局貝工消份合作杜印製 五、發明説明（u) 可使彈簧機構54、 55之彈壓力作用在回動桿30、 31。於此時亦可將支點構件34、 35與彈簧機構54 、55之其中一者設成可自由移動。 (3) 圖中之軸承構件4， 5雖係構成以固定軸2, 3為中心而上下回動狀，然亦可將離模紙4與回動軸之其 中一者或是兩者，設成可沿著導引構件而上下蓮動狀例如 上述特公昭60 — 32464號之縫紉機。 (4) 可不將止擋螺栓108、 109螺合在針板 111側之構件122,而延長壓布部102、 103之 根端部，而螺合在該根端部，且將前端抵接在針板111 〇 (5) 在壓布部103設有螺孔，而亦可將締結螺栓 1 2 1螺合於此。此時壓布部1 02之螺孔成為透孔。 (發明之效果） 如上所述，本發明之暗縫縫紉機，可減小因彈簧機構 所産生之柱塞彈壓力之變動範圍，又可容易且正確地調整 該彈壓力。 又對應於下降側之柱塞的壓布部不會曝露，可將與2 個壓布部有關的布部分經常保持在一定的狀態，而可良好 地進行暗缝動作。 又由於在2個壓布部之間設置可於上下自由調節之導 引板，而可將布沿著導引板正確地輸送，藉此可良好地進 行暗缝動作。 A 6 Π 6 (請先閲讀背而之注意事項再填寫本頁) 裝< 訂- 本紙張尺度遑用中a Η家標準(CNS)T 4規格(210X297公釐) -13 - 經濟部+央榀準局员工消赀合作社印製 外:‘ 五、發明説明 (12) 圖面之簡單說明： 第1圖係本發明之暗縫縫紉機之布之推壓裝置之一實 施例的正面圖， 第2圖係表軸承構件與彈簧機構等之關係的正面圖， 第3圖係表軸承構件與柱塞等之關偽的正面圖， 第4圖係表回動桿，軸承構件以及彈簧機構等之關係 的外觀圖， 第5圖係表從動臂與滑動件之關係的正面圖， 第6圖偽支點構件相對於框體之安裝狀態之斷面圖， 第7圔係表壓布部之附近之部分破斷的平面圖， 第8圖條表沿第7圖之A—A線的斷面圖， 第9圖係表壓布部與柱塞等之關係的側面圖， 1 .........框體， 2,3.........固定軸， 4 , 5 .........軸承構件， 6,7 .........回動軸， 8,9 .........柱塞， 3 0,31 .........回動桿， 3 4,3 5 .........支點構件， 3 8,3 9 .........連捍， 44,4 5 .........雙臂曲柄， 4 8,4 9 .........彈壓彈簧， 5 4,5 5 .........彈簧機構， A 6 B6 (請先閱讀背而之注意事項再艰寫木頁) 本紙5fc尺度边用中S S家樣準(CNS) T4規格(210X297公龙) _ 14 一 Λ 6 η 6 五、發明説明（13)10 1 .........樞軸， 1 0 2, 1 0 3 .........壓布部，10 2a, 103a .........推壓部， 1 0 8, 1 0 9 .........止擋螺栓（止擋件）12 1 .........締結螺栓（締結裝置），N .........布。 (請先閲讀背而之注意事項再堝寫木頁) 裝· 訂- 線- 經濟部中央槛準局员工消赀合作社印製 本紙5艮尺度逍用中國Η家標準（CNS)肀4規格(210X297公龙） -15 -Duyin M, Beigong Consumer Cooperation, Bureau of Standards, Ministry of Economic Affairs. V. Description of the invention (7) The through hole 1 〇3b with a larger diameter than the above-mentioned screw hole 102b. Between the two pressing parts 1 ◦ 2, 1 0 3, a guide plate 120 with a guide part 1 2 0 a at the front end is provided. The guide plate 120 is arranged with the guide part 120 a Between the cloth portions 102a and 103a, similarly to the cloth pressing portions 102 and 103, it is pivotally connected to the pivot shaft 101 in a freely movable manner up and down, and a large-diameter through hole 1 is formed in the center portion thereof 〇2 b. The presser parts 102 and 103 and the guide plate 120 are connected by the tie bolt (association device) 121 of the other presser part 102 from the side of the presser part 103 through the through holes 103b and 120b. Into one. The diameter of the bolt 121 is much smaller than that of the through hole 103b and L 2 0 b. Therefore, the relative position of the presser part 103 and the guide plate 120 can be adjusted relative to the presser part 102 in the vertical direction. Protrusions 102a, 103a protruding upward are provided at the root ends of the cloth pressing portions 102, 103, and the protrusions 102a, 103a are respectively abutted by members 122 screwed to the needle plate 11 The front ends of the stop bolts (stops) 108 and 109 can restrict the upward swinging range of the cloth pressing parts 102 and 103 and the guide plate 120 to prevent excessive back movement. In addition, by changing the screw-in amount of the stop bolts 108, 109, the contact position with respect to the cloth pressing portions 102, 103 can be adjusted. The above-mentioned pivot 1◦1 is fixed to the structure 122 by fixing bolts 123. When the pressing portions 102a and 103a are pushed downward, they are urged by the springs 112 and 113 as they fall downward. The needle 1 1 6 will be pushed up by one of the plungers 8, and the part of the cloth N pushed by the pressing part 1 02a of the pressing part 102 will be borrowed from the other (please read the opposite first (Notes will be written on this page) Pack-Line · This paper is used in the BB home sample standard (CNS) τ 4 specifications (210X297 male dragon) -9-2i3 to Λ (; Π6 Employee consumption of the Central Bureau of the Ministry of Economic Affairs Printed by the cooperative 5. Description of the invention (8) The portion of the cloth N pushed by the plunger 9 and pushed by the pressing portion 103a of the cloth pressing portion 103 is perpendicular to the paper surface in Figure 9 The direction moves in an arc and the texts are blindly stitched to each other. The cloth N is transferred from the left to the right in Figure 9. The symbol 11 7 is set between the stop bolts 108 and 109 and the component 1 2 2 The spring can prevent the slack of each stop bolt 108, 109. Next, the function of the blind stitch sewing machine of the above structure will be described. In addition, the blind stitch portion of the trousers of the pants is shown in Figure 8 and Figure 9. The edge Na, after being sewn, is folded to the left in Figure 8. Therefore, the dark seam part is hidden by the end edge Na, while in Figure 8, the upper side is inside the Zenko. Usually it is respectively The stopper bolts 108 and 109 are turned to adjust the pressing portion 103a of the pressing portion 103 which presses the cloth portion 3 which is thick enough to press the cloth N to form a cloth portion which is thinner than the cloth N by only 1H. The pressing portion 102a of the pressed cloth portion 102 is located slightly below, and the guide portion 120a of the guide plate 120 is adjusted to be slightly lower than the two pressing portions 102a and 103a, and the locking bolt 121 is locked. The presser parts 102, 103 and the guide plate 120 are integrated into one body. In addition, when the eccentric input 2 7 is rotated by the rotating shaft 26, the swing arm 24 swings in the left and right directions in the second sipe, and drives The shaft 13 reciprocates back and forth in the circumferential direction at a certain angle. The above-mentioned reversing motion of the driving shaft 13 is transmitted to the reversing shaft 7 by the drive 17 etc. on the one hand, and by the gears 21 and 20 on the other hand 5S · Side Standards Standards (CNS) T4 specifications (210X21J7 male; ¢) ΓΤ (please read the back-end notes first #mbark wooden page) Employee consumption cooperation of the Central Standards Bureau of the Ministry of Economic Affairs Du Printed_ __n_6 V. Description of the invention (9) and the drive arm 16 are transmitted to the other reversing shaft 6. The plungers 8, 9 installed on each reversing shaft 6, 7 By the above-mentioned reversal of the reversing shafts 6 and 7, it will reciprocate in opposite directions to each other, and push up the cloth N alternately. At this time, the cloth pressing parts 102, 103 use the pressing parts 102a, 103a at the front end Push the cloth N from above. Therefore, in the thick part of the cloth N that is blindly stitched, the plunger 9 will automatically fall down against the elastic force of the elastic spring 49, thereby preventing the stitching or folding of the blind part toward the surface In addition, due to the strong push-up force of the plunger 9, the thick cloth part is slightly deviated from the outer seam position at the self-pressing cloth part 103, as shown in Figure 9 Bulge. However, as described above, since the pressing portion 103 for pressing the thick cloth portion is adjusted to be lower than the pressing portion 102 for pressing the thin cloth portion, the swell amount of the thick cloth portion will be It is pushed up by the other plunger 8 and has the same height as the portion of the thin cloth N pushed by the pressing portion 102. With the needle 116, the thick part and the thin part can be accurately slit in the same way. The guide plate 120 is used to guide the reflexed portion of the end line Na of the cloth N through the guide portion 120a. According to the pushing movement of the two plungers 8 and 9, the two pressing parts 102 and 103 and the guide plate 120 will move up and down with the pivot 101 as the fulcrum. The upward movement range is limited by stop bolts 108 and 109. If the two pressing parts 102 and 103 cannot be integrated into one body, the pressing force of the plungers 8 and 9 will cause the pressing part on the unpressed side of the plunger to be exposed. However, because of the 2nd pressure cloth parts 102, 103 and the guide plate 120, Meng borrows the binding bolts (please read the precautions first and then write the wooden page). This paper uses the Chinese standard B (CNS) < T4 Specifications (210X2 (J7 public address) -11-Central Ministry of Economic Affairs, Ministry of Economic Affairs, the Ministry of Economic Affairs, co-operation, du printing. Fifth, invention description (id 121 is combined with one another, so the cloth N will borrow the plunger 9 (8) and The upper and lower positions of the pressing portion 102a (103a) of the pressing portion 103 (102) of one of the pressing portions 103 (102) and the pressing portion 102a (103a) of the other pressing portion 102 (103) will not change, It is always kept constant. Therefore, the cloth pressing portions 102 and 103 corresponding to the plungers 8 and 9 on the descending side will not be arbitrarily exposed, and the state of the cloth N may be always together when it is dark stitched. When the plunger pressure of the springs 48 and 49 is strong, the rotary knobs 36 and 37 can be relaxed to move the pivot member 3 4. and 35 to the left in the first figure, and the rotary knobs 36 and 37 can be tightened. In this operation, the ratio of the distance between the fulcrum members 34 and 35 and the free joints 40 and 41 to the distance between the fulcrum members 34 and 35 and the plungers 8 and 9 becomes larger, so each spring is compressed The spring pressure of the plungers of 48 and 49 is increased. If the fulcrum members 34 and 35 are moved to the right in the first figure, the elastic force of the springs 48 and 49 can be weakened. The nuts 52 and 53 can be adjusted by operating The elastic force of the springs 48 and 49 can be adjusted by changing the tension, but this is generally performed when the sewing machine is assembled, and the following embodiments are described below. (1) In the embodiment shown in the figure, although the pivot member 34, 35 moves along the reversing levers 30 and 31, but if the spring mechanisms 54 and 55 are moved, the same purpose and effect as above can be achieved. (2) The fulcrum members 34 and 35 are provided on the reversing lever 30, At the end of 31, between the fulcrum members 34, 35 and the plungers 8, 9, (please read the back page first and pay attention to the writing of the wooden page by Er Xiang). CNS) TM regulation (210X297 gong; ";") -12-The Ministry of Economic Affairs, Central Standards Bureau, Beigong Consumer Co-operated Du Printing 5. Description of the invention (u) The spring pressure of the spring mechanism 54 and 55 can act on the return rod 30, 31. At this time, one of the fulcrum members 34, 35 and the spring mechanism 54, 55 can also be set to be freely movable. (3) Although the bearing members 4 and 5 in the figure are configured to move up and down with the fixed shafts 2 and 3 as the center, one or both of the mold paper 4 and the return shaft can also be set. It can be moved up and down along the guide member, such as the above-mentioned sewing machine No. 60-32464. (4) It is possible to extend the cloth pressing portion without screwing the stop bolts 108 and 109 to the member 122 on the needle plate 111 side 102, 103 at the root end, and screwed to the root end, and the front end abuts on the needle plate 111. (5) There is a screw hole in the pressure cloth portion 103, and the anchor bolt 1 2 1 can also be screwed Fit here. At this time, the screw hole of the presser part 102 becomes a through hole. (Effect of the invention) As described above, the blind stitch sewing machine of the present invention can reduce the variation range of the plunger spring pressure generated by the spring mechanism, and can easily and accurately adjust the spring pressure. In addition, the pressing part corresponding to the plunger on the lowering side is not exposed, and the cloth parts related to the two pressing parts can always be kept in a certain state, and the blind stitching operation can be performed well. In addition, since a guide plate that can be adjusted freely from top to bottom is provided between the two cloth pressing portions, the cloth can be correctly transported along the guide plate, and thus the blind stitching operation can be performed well. A 6 Π 6 (please read the precautions before filling in this page) Binding < Order-This paper is not used in a standard (CNS) T 4 specifications (210X297 mm) -13-Ministry of Economics + Printed by the staff of the Central Bureau of Accreditation and Cooperative Society: 'V. Description of the invention (12) Brief description of the drawings: Figure 1 is a front view of one embodiment of the cloth pressing device of the blind stitch sewing machine of the present invention, Figure 2 is a front view of the relationship between the bearing member and the spring mechanism, etc. Figure 3 is a pseudo front view of the relationship between the bearing member and the plunger, etc. Figure 4 is the return lever, bearing member and spring mechanism, etc. Figure 5 is a front view of the relationship between the follower arm and the slider, Figure 6 is a cross-sectional view of the installation state of the pseudo-fulcrum member relative to the frame, Figure 7 is the table of the cloth pressing part The broken part of the nearby plan view, Figure 8 shows the cross-sectional view along the line A-A of Figure 7, Figure 9 is the side view of the relationship between the table pressing part and the plunger, etc ... ..... frame, 2, 3 ...... fixed shaft, 4, 5 ......... bearing member, 6, 7 ......... Reverse shaft, 8,9 ......... plunger, 3 0,31 ......... Back Movable lever, 3 4,3 5 ......... pivot member, 3 8,3 9 ......... Lian Han, 44,4 5 ......... Double-arm crank, 4 8, 4 9 ......... spring spring, 5 4, 5 5 ......... spring mechanism, A 6 B6 (please read the precautions first Harder to write wooden pages) This paper is used in the 5fc scale of the middle SS home sample standard (CNS) T4 specifications (210X297 male dragon) _ 14 a Λ 6 η 6 V. Description of the invention (13) 10 1 ........ .Pivot, 1 0 2, 1 0 3 ......... Pressing cloth part, 10 2a, 103a ......... Pushing part, 1 0 8, 1 0 9 .. ....... stop bolts (stops) 12 1 ......... locking bolts (locking device), N ......... cloth. (Please read the precautions before writing the wooden page) Binding · Order-Line-The Ministry of Economic Affairs, Central Bureau of Quarantine, Employee Consultation Cooperatives printed this paper 5 Gen standard and use Chinese NH standard (CNS) 4 specifications 210X297 male dragon) -15-