201247956 六、發明說明： 【發明所屬之技術領域】 本發明大體上涉及一麵^7裝置和包含所 更詳細地’本發明涉及壓腳裝置和帶壓腳板的』f的，機。 於遵循將要縫初的布塊的厚度的變化。、、·、機’塵腳板適 【先前技猢J 在- 完成的不同的_操作而設計的。 構”根據要 比如，由-個或多個針組成的單· 褲、一般的褲子、夂锸从十q疋用π縫紉如牛仔 工件。 各種外衣、絲、如氣袋等工藝薄紗等的織物 【發明内容】 的ϋ摘構造巾’所述方案由基座和上頭部組成，基座和上部 略一根柱子相互連接。用線穿透將被縫幼的： 在頭部’而基座具有傳送將被縫幼的 傳运裝置’並包含與針合作形成縫線的機構。 麵峨，靠近—個或多個 的^^^構3417 ’壓腳板鉸接在使壓腳板保持在其位置上 展而擺動t ’且㈣允許壓_隨著將要__物或材料的進 織物的厚度有小幅變化地情況下，壓腳板也隨著變化，以 避免壓腳板的卡住。 在將要縫製的織物有大幅度的厚度變化的情況下，比如由於 201247956 兩塊或更多塊布塊的疊合，壓腳板適當地遵循織物的表面有困 難，這使得縫合線有缺陷，並引起織物片的疊合不完全和隨之發 生的織物邊緣不重合’損害如此獲得的服裝工件的品質。 比如，當壓腳板必須遵循厚度減小時，得出的縫合線是不規 則的，縫線加長。 既然壓腳板不能遵循將要縫製的織物的表面，壓腳板必須延 長其路線並從織物上抬起片刻，使得壓腳板不能完全在壓力下將 織物保持在基體上。 在利文獻EP2233628A2和JP55086675中公開了 一種由突出的 彈，機構組成的壓贿，這種壓職允許遵賴轉度的變化。 但是’這樣的系解允許制織轉度的變化並縣和 上的壓腳軛的懕六。 工' 在專利文獻JP5161771中，公開了一麵腳板的控制裝置， 據所述 愿腳板的傾斜度，通過作用於欽接在壓腳板上的 壓力。不過相侧腳杆和壓腳板的連二允:: 特性不此允許控麵腳板的不同部位的壓力。 專利文獻US細/G5_7，為了齡壓板 其上的_。彈性元件二=被 力。航，壓腳的方式，1在壓腳板進而在織物上的壓 本發明的—_斜__置。 除上述提到的缺點及實=個，腳裝置和縫幼機消 縫合，日服裝卫件成為可^點通過這些使獲得具有完美品質的 過這實現-個織物峨置和縫_，通 條的織物片完美疊合的縫合線成為可能，在織 4 201247956 物的邊緣沒有不期望的不重合。 本發明的另一個目的是實現一個織物壓腳 中.，置;:更細做瞎已加頌物的厚細^而變化 ，在目的是實現—個織物壓腳裝置和肋機，允 雜帶有相職度_合_—塊或多塊織物上_，甚 加工的織物上存在厚度變化時。 =本發明’通過可以與縫_配合的壓腳裝置，縫幼機帶 有控制系統並包括頭部和將要縫製的玉件置於其上祕座，上述 二目，和其他目的是可實現的。壓腳裝置包括與頭部匹配的壓腳 才干和堡腳板組成，壓峡通過樞軸鉸接麵賴腳桿上，使 .上，所 腳板相對於壓哺懈，為了使工件在壓力下料在基座 述壓腳板適合於推動工件。 特別是’壓職置的舰在於包括檢測壓峡姉於壓腳桿 的傾斜度的檢_構和在壓崎上適於雌賴制機構。 檢測壓腳板相對於壓腳桿，進而相對於縫_的基座的傾斜 度的可能性允許檢測在已加卫的1件上厚度的變化以及所述變化 的強度因此’通過檢測所述厚度的變化，縫初機的控制系統可 以啟動相__的其他裝置，如個於壓腳桿上的壓制機構。 根據本發明，壓崎置的檢峨構雜更簡便地檢測壓腳板 傾斜度的變化，無論傾斜角度多Α，以確定厚度變化，無論織物 的質地怎樣。 壓制機構適於在壓腳板上而不是樞轴上啟動，並包括獨立於 壓腳板的傾斜度的變化適於以連續的方式改變壓腳板上的壓力的 壓力控制機構。以這樣的方式，制機構作麟其上並放置在將 壓腳板鉸接在壓腳桿上的柩軸的前面或後面的壓腳板的部分，在 縫初ρ皆段可以壓職物。當將要賴喊物的厚度減小時這個裝 201247956 置是非常有用的。该媒卞你^ 具有減小的厚度的::象，有技術的系統中壓腳板幾乎懸在 傾斜，並允許縫暂;據本發明’壓腳板隨著織物的構造 變的。 #问°°質的縫合線，縫合線上縫線的尺寸是不 力，=厭控制機構允許控制和改變壓聊板在織物上的壓 力儘官_板不轉它_斜度。 :魏’檢測機構包括—個與縫峨的控制系統連接的感 碰 的魏。這樣，壓峡賴鱗動使得鉸 ，，人運動，鋏鏈結構接著作用於感測器。因此，感測器可 以放在一個不妨礙縫紉工作的安全位置。 特，地’根據本發明，壓腳裝置的鉸鏈機構可以包括： ’端固定在壓腳板上’並且另-端包括-個圓柱體； -傾斜元件，雜在縫域的頭部； 又狀元件’-端固定在傾斜元件上，並且另一端包括一個 臂的圓柱體在其中運動的底座； -平板’©定在傾斜元件上並佈置在感測器的旁邊。 通過ϋ種構造和結構，通過改變壓腳板的傾斜度，臂可以旋 轉並引起圓柱體在又狀元件作為導向獲得的底座中平移 ，因此其 引起傾斜元件轉’為了I减測器移鮮板或將平板從感測器 移走。 另外，傾斜元件可以包括一個活塞，活塞包括一個一頭固定 在叉狀7L件上的桿和桿在其中滑動的筒，所述筒的一端鉸接在縫 匆機的頭部上。 這樣’也包括通過縫紉機的控制系統適當控制的所述活塞的 欽鏈裳置作為壓賴構，如果所述控齡關必要，壓制方 6 201247956 式可以被啟動’所述控制系統由使用者適當地設置。 *正t話說’鉸鏈裝置有雙重作用：當活塞桿被釋放在活塞體 、’、鱗裝置啟動感測器並作為感測器機構起作用；當桿 處於活塞料時，鉸鏈機構麵力下將壓哺放置在-部分上， 这部分不同於壓腳桿可能作用的一部分。 知辦’又狀疋件可以包括兩㈣，兩個臂之間具有臂的圓 柱體在其中移動的底座。 明的目的也在於其目的和優點也通過包括作為之前概括 限疋的壓腳板的縫紉機達到。 ’本發明的目的和伽也通過_麟具有厚度變化的 、t的厂、订，製的方法來實現’縫切機包括通過樞軸鉸接在壓腳板 接艏感樞軸將壓腳板分成前部和後部’所述前部比後部先 财法的概在於壓峨龍斜度及7_腳板傾斜 二綠1測’和獨立於壓腳板（26)的傾斜度及/或壓腳板（26) 你頃斜度變化以及織物的厚度的變化，在壓力下以可調整的 放置所述壓腳板的前部。 線的術的_機的縫線是不—致的’所述措施允許縫 ，長二保持規則和—致，即使將要縫製的織物的厚度減小。這 L獲得-條縫合線和—件織物片精顧合的高品質醜裝工件 t為可能’在織物的邊緣沒有不期望的不重合。另外201247956 VI. OBJECTS OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention generally relates to a device and a machine comprising the present invention in relation to a presser foot device and a presser foot plate. To follow the change in the thickness of the cloth to be sewn. , , ·, machine 'dust foot plate suitable 【Previous technology J in - completed different _ operation designed. The structure is based on, for example, a single trousers composed of one or more needles, a general trousers, a quilt from a ten 疋 π sewing such as a denim workpiece, various outer garments, silk, crafts such as air bags, etc. The fabric of the present invention consists of a base and an upper head. The base and the upper part are connected to each other by a column. The thread penetration will be sewn: in the head The seat has a transport device that transports the young to be sewn and includes a mechanism for cooperating with the needle to form a suture. The face is close to one or more of the members 3417 'the presser plate is hinged to hold the presser foot in its position Swinging t' and (4) allowing pressure _ With the slight change of the thickness of the incoming fabric of the material or material, the presser foot also changes to avoid the stuck of the presser foot. In the case where the fabric has a large thickness variation, such as due to the overlap of two or more pieces of cloth in 201247956, it is difficult for the presser foot to properly follow the surface of the fabric, which causes the suture to be defective and causes a stack of fabric pieces. Incomplete and consequent fabric edges Does not coincide with 'damaging the quality of the garment workpiece thus obtained. For example, when the presser foot must follow the thickness reduction, the resulting stitch is irregular and the stitch lengthens. Since the presser foot cannot follow the surface of the fabric to be sewn, press The foot plate must extend its course and lift it from the fabric for a moment, so that the presser foot plate cannot hold the fabric on the substrate under full pressure. A bribe consisting of a protruding bullet, a mechanism is disclosed in the documents EP 2 233 628 A2 and JP 55 508 765. A kind of pressure is allowed to comply with the change of the degree of rotation. However, 'such a solution allows the change of the degree of weaving and the yoke of the foot and the yoke of the county." In the patent document JP5161771, a side plate is disclosed. The control device, according to the inclination of the wishing plate, acts on the pressure applied to the presser foot plate. However, the phase leg and the presser plate are connected to each other: the characteristic does not allow the pressure of different parts of the control foot plate Patent document US fine / G5_7, for the age of the pressure plate on the _. elastic element two = force. Navigation, presser foot, 1 on the presser foot and then on the fabric _ oblique __ set. In addition to the above mentioned shortcomings and real =, the foot device and the seam machine to eliminate the stitching, the Japanese clothing guards become a point through which these can be obtained with perfect quality - a fabric device It is possible to have a perfect stitching of the fabric sheet of the seam, and there is no undesired misalignment at the edge of the weave 4 201247956. Another object of the invention is to achieve a fabric presser foot; More finely, the thickness and thickness of the added material are changed, and the purpose is to realize a fabric presser device and a rib machine, which can be mixed with the _ _ _ block or a plurality of fabrics _, even processing When there is a change in thickness on the fabric. = The present invention 'passes the presser device that can be engaged with the slit, the slitting machine has a control system and includes a head and a jade piece to be sewn on the top seat thereof, the above two items , and other purposes are achievable. The presser foot device comprises a presser foot and a forefoot plate matched with the head, and the press gorge is attached to the foot rod through the pivot joint surface, so that the foot plate is pressed against the pressure, so that the workpiece is pressed under the pressure. The foot press plate is adapted to push the workpiece. In particular, the ship that is pressed into the position includes a test structure for detecting the inclination of the press sill on the presser foot and a mechanism suitable for the female layup on the pressure. Detecting the possibility of the inclination of the presser foot relative to the presser foot, and thus to the base of the slot, allows the detection of the change in thickness on the one that has been applied and the strength of said change, thus by detecting the thickness The change, the sewing machine's control system can start other devices of the phase __, such as the pressing mechanism on the presser foot. According to the present invention, the inspection of the pressure gauge makes it easier to detect the change in the inclination of the presser foot, regardless of the inclination angle, to determine the thickness variation regardless of the texture of the fabric. The pressing mechanism is adapted to be activated on the presser foot rather than the pivot and includes a pressure control mechanism adapted to vary the pressure on the presser foot in a continuous manner independent of the change in inclination of the presser foot. In this manner, the mechanism is placed on the portion of the presser plate which is placed on the front or rear of the boring shaft which hinges the presser foot on the presser foot, and can be pressed at the beginning of the seam. This 201247956 is very useful when the thickness of the object to be shredded is reduced. The media has a reduced thickness: like, in a technical system, the presser foot is almost overhanging and allowing the seam to be temporarily suspended; according to the present invention, the presser foot plate changes with the construction of the fabric. #问°°Quality suture, the size of the suture on the suture is not good, and the anti-control mechanism allows to control and change the pressure on the fabric on the fabric. The plate does not turn it _ slope. The Wei's inspection mechanism includes a touch of Wei connected to the control system of the seam. In this way, the compression of the gorge makes the hinge, the human movement, and the 铗 chain structure work for the sensor. Therefore, the sensor can be placed in a safe position that does not interfere with the sewing work. Specifically, according to the present invention, the hinge mechanism of the presser foot device may include: 'the end is fixed to the presser plate' and the other end includes a cylinder; - the tilting element, the head of the seam domain; the further component The '-end is fixed to the tilting element, and the other end includes a base in which the cylinder of one arm moves; the flat plate' is positioned on the tilting element and disposed beside the sensor. By varying the configuration and structure, by changing the inclination of the presser foot, the arm can be rotated and cause the cylinder to translate in the base obtained by the re-shaped element as a guide, thus causing the tilting element to turn for the I-reducing plate or Remove the plate from the sensor. Alternatively, the tilting member may include a piston including a rod and a barrel in which the rod is fixed to the forked 7L member and the rod is slid therein, and one end of the barrel is hinged to the head of the slitting machine. Such a 'also includes the chiseling of the piston appropriately controlled by the control system of the sewing machine as a pressure-dependent structure. If the age control is necessary, the pressing side 6 201247956 can be activated'. The control system is appropriately controlled by the user. Settings. *There is a saying that the 'hinge device has a dual function: when the piston rod is released in the piston body, ', the scale device activates the sensor and acts as a sensor mechanism; when the rod is in the piston material, the hinge mechanism will force The pressure is placed on the - part, which is different from the part of the presser foot that may work. The device can also include two (four) bases with a cylindrical cylinder with arms extending between the two arms. The purpose of the invention is also to achieve its purpose and advantages by including a sewing machine as a foot plate that has been previously limited. 'The object of the present invention and the gamma are also realized by the method of factory, ordering, and manufacturing of the thickness of the lining. The slitting machine includes the pivoting of the presser foot into the front part by pivoting the hinged shaft at the presser foot. And the front part of the front part is more than the back part of the first financial method is the pressure of the dragon slope and 7_foot plate tilt two green 1 test 'and independent of the inclination of the presser foot (26) and / or presser plate (26) you The change in the slope and the change in the thickness of the fabric are adjusted to place the front portion of the presser foot under pressure. The stitching of the thread of the machine is not - the measure allows the seam, the length of the second is kept regular and even if the thickness of the fabric to be sewn is reduced. This L----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- In addition
r厚ί變化’因此當壓腳板改變其傾斜度時，而且在織物S t之則或之後’控制和改髓腳板的前部的壓力成為 又 【實施方式】 以下麟的具獅述㈣_轉作為限雛糊，但 更好地理解本發明的特徵和細節。 關於附圖，特別在圖1中，符號10表示包括基座12和頭部 201247956 14的_機’基座和頭部通過立柱16和臂i8連相互接。 可以包板括上=四放置其上的主雜20。將要被縫製的織物 24,14包括可在登直方向上移動的壓腳桿 定在壓㈣過螺釘28鉸接在壓腳桿的下端。臂30固 疋在壓腳板26的另一端並豎向延伸。 臂= 體32 3G的綱由輸撕垂直方向向 相對=二：枢軸33鉸接在上一^ 、、舌窠m雜於控歡作的合適的控_統，比如，通過廊用 ㈣鶴桿^目 成直^ 4〇和平板38受桿36的自由端的限制，平板38與桿36 臂42又的成-個底座，圓柱體32可以向兩個 向作用。 _分支。這樣，叉子4_柱體32起到導 時，^i4程包^感測器44 ’比如當通過旋轉活塞34移動平板38 控制系=:= 平板38的附近。感測-通‘ =:根:=:如下描述壓腳板的控制裝置的運行。 其上放置麵物薄>；54 放在総12上，卫件包括 合有^勿薄片的厚 ，將要縫製的工件5〇在疊 田是3〇保持又子40，並且因此，通過圓柱體32和臂42之門 8 201247956 的形式連接使得活塞34相對於頭部14傾 在適當：並增板放置在基座織物板6通過壓 在構造上，平板38沒有放置在感測器4 上 感測器44不檢測平板38的存在。因此，控制因此， 34，活塞保持活塞桿36在其自身的内部自動。纟用於活塞 當工件前進時，如圖4所示，工件5〇 移動，使壓腳板26接合織物薄片54。這樣，為、^座12上 無障礙地歧，_板26必織斷28片54 虽壓贿26 _斜錢⑽，關麵 ^ = 迫旋轉，並使得圓柱體32在又子4〇的兩個臂犯之^ =被 内上升，並撞擊在臂42的分支上。 ^成的底座 使活=:針再：—，叉子40順時針旋轉，同時迫 活塞34的旋轉帶動感測器44附近的 訊傳遞給控财統。 近的千板招，_器44將資 這樣，控制系統得知壓腳板26即將從基 度增加的織物薄片54上的情況，使得啟動： :能’比如開始數縫_在織物薄片54上形成的縫;=:， =5所示，當壓贿26克服基座織物52 間的坡度，並再次水準時，通過連接體32 =片5= 碩部14的傾斜角度增長，f 3〇使活塞％逆時針旋轉。； 控制系統得知現在壓腳板26在織物薄片54上 如圖6所示，當加工進行，由縫紉機1〇 或_片段龍魅刪，臟㈣ 的縫線 抓專片54的長度奴，壓贿26接近織物薄片％的邊緣， 201247956 因此壓腳板26即將下降到基座織物52上。 因為壓腳板26已經到達這個位置，控制系統啟動活塞料。 當活塞34使得活塞桿36出去時，活塞34引起又子4〇靠 圓柱體32，使得圓柱體32壓住工件50，並且活塞34將這個壓力 傳遞給壓腳板26,因此壓腳板用一個更高的壓力壓住織物薄片5扣 當壓腳板的頭部超過織物薄片54並下降到基座織物52上， 強迫壓腳板繞螺釘28突然旋轉，允許壓腳板26以最好的方式 循工件50的厚度變化時，活塞34強加的壓力保持。 當壓腳板再次在基座織物52上處於水準位置時，與壓腳板洸 作為整體的臂30隨後旋轉，迫使活塞桿36加壓。 由活塞桿36的加壓引起的活塞34的過壓通知控制系統 後控制系統釋放活塞34 ’使得活塞桿自由移動。 根據本發明的一種變體，縫紉機110可以包括頭部114，而 部包括壓力控制裝置116之_裝置，比如，作·壓腳桿124 上的充氣活塞社壓轉24，使得鉸触所述壓腳桿 124上的壓腳板可以關望的力量被餘將要縫製的布料上。 有利地，裝置116可以通過基於感· 44的上述的檢測的控 制系統，動’比如，當壓腳板放在更厚的織物上時，為了進一^ 使加工容易並獲得更好的縫幼，通過增大壓腳桿124的壓力。 〃正如所描述的壓腳板的控制裝置有優點，即它以最好的方式 監視正在加工的織物的厚度變化’甚至#由於在從大的厚度到小 ，厚度的下降開始之前壓腳板載人’變化是可觀的和/或突然時， =在現有技術的縫_是不會發生的。耻，在更多的織物疊合， ·，，、論疊合的織物的數量、最後的厚度和相_厚度變化如何的情 =下’如所述的壓腳板的㈣裝置允許得収好地_。通過合 、的軟體’使用者預先設定並通過勒機的控齡_控制，調 201247956 整自動發生。從而，無論何時織物的數量和相關的厚度發生變化， 使用者不必校準齡裝置和肋機。本部⑽技術人員可以構思 如本發明的保護範圍包括可考慮的改變和變體。比如，無論控制 系、’’充如何，根據其他參數而不是縫初機加工的縫線或縫紉片段的 數量’活塞桿壓在限制於壓腳板上的臂上的活塞可以保持在壓力 201247956 【圖式簡單說明】 圖1是根據本發明，在靜止狀態的縫紉機的軸測頂視圖； 圖2是圖1的細部構造圖， 圖3-7是在縫製具有厚度變化的織物時連續工作階段的縫紉 機的側視圖； 圖8是本發明的一個變體的縫紉機的軸測俯視圖。 【主要元件符號說明】 10 縫紉機 12 基座 14 頭部 16 立柱 18 臂 20 主體 22 針板 24 壓腳桿 26 壓腳板 28 樞軸、螺釘 30 臂 32 圓柱體 33 樞軸 34 傾斜元件、活塞 36 桿 38 平板 40 叉狀元件 42 臂 44 感測器 12 201247956 46 纜線 50 工件 52 織物 54 織物薄片 110 縫紉機 114 頭部 116 壓力控制裝置 124 壓腳桿r thick ί change 'so when the presser foot changes its inclination, and after the fabric S t or after the 'control and change the pressure of the front part of the pulp plate becomes again [embodiment] the following lion's lion (four) _ turn As a limitation, the features and details of the present invention are better understood. With respect to the drawings, and particularly in Fig. 1, reference numeral 10 denotes a base and a head including a base 12 and a head 201247956 14 which are connected to each other by a post 16 and an arm i8. You can include the main miscellaneous 20 placed on it. The fabrics 24, 14 to be sewn include a presser foot which is movable in the straightening direction, and a press (four) over-screw 28 is hinged to the lower end of the presser foot. The arm 30 is fixed to the other end of the presser foot 26 and extends vertically. Arm = body 32 3G's outline is torn from the vertical direction to the opposite = two: the pivot 33 is hinged on the upper one, and the tongue and the tongue are mixed with the appropriate control system, for example, through the gallery (four) crane rod ^ The flat plate 38 and the flat plate 38 are limited by the free end of the rod 36. The flat plate 38 and the rod 36 arm 42 are again formed into a base, and the cylindrical body 32 can be oriented in two directions. _ branch. Thus, the fork 4_cylinder 32 acts as a guide, such as when the plate 38 is moved by the rotary piston 34 to control the vicinity of the plate =: = plate 38. Sensing-Through ' =: Root:=: The operation of the control device of the presser foot is described as follows. The thin surface on which the surface is placed is placed on the crucible 12, and the guard member includes a thick portion which is combined with the sheet, and the workpiece to be sewn is 5 in the stacking field, and the crucible is kept at 40, and thus, passes through the cylinder. The form connection of 32 and the door 42 of the arm 42 201247956 allows the piston 34 to be tilted relative to the head 14: and the plate is placed on the base fabric panel 6 by pressing against the construction, the plate 38 is not placed on the sensor 4 The detector 44 does not detect the presence of the plate 38. Thus, control therefore 34, the piston keeps the piston rod 36 automatic within its own interior.纟 For the piston When the workpiece advances, as shown in Fig. 4, the workpiece 5 〇 is moved to engage the presser plate 26 with the fabric sheet 54. In this way, for the seat 12 to be unobstructed, the _ board 26 must weave 28 pieces of 54. Although the bribe 26 _ oblique money (10), the closing surface ^ = forced rotation, and the cylinder 32 is in the second four The arm ^^ is raised internally and hits the branch of the arm 42. ^ The base is made to live =: Needle again: -, the fork 40 rotates clockwise, and the rotation of the piston 34 is forced to transmit the signal near the sensor 44 to the control system. In the near-thousands, the controller 44 will, in this way, the control system knows that the presser plate 26 is about to be increased from the basis of the fabric sheet 54, so that the start: can be formed, for example, starting a number of slits on the fabric sheet 54. The seam; =:, =5, when the bribe 26 overcomes the slope between the susceptor fabrics 52 and is again leveled, the angle of inclination is increased by the connecting body 32 = piece 5 = the root portion 14 %Anticlockwise rotation. The control system knows that the presser plate 26 is now on the fabric sheet 54 as shown in Fig. 6, when the processing is carried out, by the sewing machine 1 〇 or _ fragment dragon charm, dirty (four) suture grasping the length of the piece 54 slave, bribe 26 is near the edge of the fabric sheet %, 201247956 so the presser foot 26 is about to descend onto the base fabric 52. Since the presser foot 26 has reached this position, the control system activates the piston material. When the piston 34 causes the piston rod 36 to exit, the piston 34 causes the cylinder 4 to abut against the cylinder 32, causing the cylinder 32 to press against the workpiece 50, and the piston 34 transmits this pressure to the presser plate 26, so that the presser plate has a higher The pressure presses against the fabric sheet 5 when the head of the presser foot exceeds the fabric sheet 54 and descends onto the base fabric 52, forcing the presser foot to rotate abruptly about the screw 28, allowing the presser foot 26 to follow the thickness of the workpiece 50 in the best manner. When the change occurs, the pressure imposed by the piston 34 is maintained. When the presser foot is again in the leveling position on the base fabric 52, the arm 30, which is integral with the presser foot, is subsequently rotated, forcing the piston rod 36 to pressurize. The overpressure of the piston 34 caused by the pressurization of the piston rod 36 informs the control system that the control system releases the piston 34' so that the piston rod is free to move. In accordance with a variation of the present invention, the sewing machine 110 can include a head portion 114 that includes a device for the pressure control device 116, such as an inflation piston on the presser foot bar 124, such that the pressure is applied to the hinge. The force that the presser foot on the foot bar 124 can look at is left on the fabric to be sewn. Advantageously, the device 116 can be actuated by a control system based on the above-described detection of the sensor 44, for example, when the presser foot is placed on a thicker fabric, in order to facilitate the processing and obtain a better seam, through Increase the pressure of the presser foot 124. 〃 As described in the presser foot control device, there is an advantage in that it monitors the thickness variation of the fabric being processed in the best way. 'Even #Because the presser foot is loaded before starting from a large thickness to a small thickness drop' The change is considerable and / or suddenly, = the seam in the prior art _ is not going to happen. Shame, in the case of more fabric overlays, ·,, on the number of laminated fabrics, the final thickness and the phase-thickness change = the lower part of the presser plate (4) device allows for good _. Through the user's software, the user's pre-set and passed the control of the machine, the 201247956 is automatically generated. Thus, whenever the number of fabrics and associated thicknesses change, the user does not have to calibrate the ageing device and the ribbed machine. It will be appreciated by those skilled in the art (10) that the scope of the invention includes variations and modifications that may be considered. For example, regardless of the control system, ''charger', according to other parameters than the number of stitches or sewing pieces machined by the initial sewing machine' piston rod pressure on the arm limited to the presser foot plate can be maintained at pressure 201247956 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a sewing machine in a stationary state according to the present invention; Fig. 2 is a detailed structural view of Fig. 1, and Fig. 3-7 is a sewing machine in a continuous working stage when sewing a fabric having a thickness variation Fig. 8 is a perspective view of a sewing machine of a variation of the present invention. [Main component symbol description] 10 Sewing machine 12 Base 14 Head 16 Column 18 Arm 20 Main body 22 Needle plate 24 Presser bar 26 Presser plate 28 Pivot, screw 30 Arm 32 Cylinder 33 Pivot 34 Tilting element, piston 36 rod 38 Plate 40 Fork element 42 Arm 44 Sensor 12 201247956 46 Cable 50 Work piece 52 Fabric 54 Fabric sheet 110 Sewing machine 114 Head 116 Pressure control device 124 Presser foot