593824 B7 五、發明說明（） 【發明背景】 1. 發明所屬之技術領域 本發明係有關縫紉機之壓布裝置。尤其是有關一種用 於將像表面被覆或塗佈有防水橡膠膜之潛水衣用布等厚度 較大且表面不滑之布，以端部相對之狀態或端部重合之狀 態予以縫製的縫紉機之壓布裝置。 2. 發明之揭示 這種縫紉機之壓布裝置’以往’爲了讓設定於針板上 之布以左右不晃動之狀態往縫製進行方向直線順暢地進給 ，要在與各配置於針板下部之前後進給齒相對應之地方’ 將布的部分彈性地緊壓於針板之上面側，即，前後進給齒 ，故一般將像板彈簧等之壓布件安裝於可上下往復運動自 如之壓桿之下端部，該壓布件係具有針落部縫製進行方向 上從下游側到上游側之長度及’與左右一對進給齒之大致 全寬相對應之寬廣的橫寬’且整體上對布之緊壓面積設定 爲較大。 在這種習知之縫紉機之壓布裝置(如上所述具備一種像 板彈簧之緊壓面積設定成沿著縫製進行方向長且橫寬也寬 而大的壓布件）中，當以像針織品之表面滑的布爲對象時’ 因壓布件之緊壓面與布表面之間是滑的，故即使壓布件之 緊壓面積，即，布表面與壓布件之緊壓面之間的接觸面積 大，兩者間之摩擦阻力也變得小，而可順暢而穩定地進行 既定之布進給。 然而，當以表面不滑的布，例如表面被覆或塗佈有防 3 本紙張尺^適用中國國家標準（CNS)A4規格（210 X 297公釐） ^ 寒 ---—I —丨—----· I--—---—------I (請先閱讀背面之注意事項再填寫本頁) 593824 A7 _____B7 _ 五、發明說明（） 水橡膠膜之潛水衣用布等爲縫製對象時，因壓布件之緊壓 面與布表面之間不滑而且兩者之接觸面積也大，故摩擦阻 力變得非常大，成爲對兩面間施加制動之狀態，而容易產 生縫製上不良的問題，例如無法順暢地進給布、即使可進 給，也因布會左右晃動致進給不均勻且不穩定而使布損傷 並使縫製處節距不固定等。 爲防止在縫製面所產生之問題，以往在以表面不滑的 布爲縫製對象時，均先在布的表面塗上潤滑油等油之後才 進行縫製，但是在這種情形，須進行對布的表面作油的事 前塗佈、縫製後作油的事後除去，而需要許多與縫製無直 接關係之過程，不僅降低作業能率，也造成縫製品被油污 損的問題。 【發明之槪要】 本發明係爲解決上述問題者，其目的是提供一種縫紉 機之壓布裝置，使布不會左右晃動，並且即使以表面不滑 的布爲縫製對象也完全不需要塗油等過程，即可確實、順 暢而均勻地進給布，而且因容易使布左右搖擺，而容易地 進行曲線縫製、裝飾縫製等。 爲達成上述目的，記載於請求項1之發明之縫紉機之 壓布裝置，係具有：壓布件，配置在針落部之縫製進行方 向下游側，且安裝於上下可往復運動自如之壓布件本體， 以將布彈性地緊壓於針板上面側之進給齒；及布進給引導 用之旋轉體，以可旋轉之方式受支承，以利用外周下端部 4 -------------------_—訂--------*5^^ (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 593824 A7 _____Β7 五、發明說明（） 將布彈性地緊壓於進給齒；其特徵在於：上述布進給引導 用之旋轉體，具有至少左右一對隔著連結壓布件緊壓部之 中心與針落部之中心之縫製進行方向上之直線配設於左右 之旋轉體，並且在至少左右一對旋轉體中至少一方’具有 用來僅容許往進給布引導作用方向之旋轉的單向旋轉離合 器；且將上述布進給引導用之旋轉體配置成’在運轉上不 干擾壓布件本體及壓布件之範圍接近針落部，並將上述壓 布件之緊壓部與接觸布上面之旋轉體外周下端部之間的縫 製進行方向上的直線距離設定成儘可能地小。 依據上述構成之請求項1之發明，將設定於針板上織 布，利用針落部之縫製進行方向下游側的壓布件與配設於 縫製進行方向上游側之旋轉體，彈性地緊壓於針板上面側 之進給齒，將進給齒所產生之強制進給力確實地施加於布 ，而能進給引導布，即使以像被覆或塗佈有防水橡膠膜之 潛水衣用布般之表面非常不滑的布爲縫製對象’也不須費 工夫在縫製前在布表面塗佈油、縫製後除去油等，即可使 旋轉體與布表面之間的摩擦阻力非常小’而將布確實、順 暢而且均勻地進給引導，因此，可防止布損傷、接縫間距 不規則等導致縫製結果不佳的原因產生。 還有，藉由旋轉體之使用對布表面施加面積小的緊壓 面（旋轉體之外周下端部），即使施加壓布件之緊壓面積， 也可使整個緊壓面對布表面之接觸面積非常小，再加上在 旋轉體之外周下端部（面積小之緊壓面）與壓布件之緊壓部 之間的縫製進行方向上之直線距離非常小’故縫製作業者 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) -裝 593824 A7 B7 ----—_ 五、發明說明（） (請先閱讀背面之注意事項再填寫本頁) 在針落部眼前處將手持之布以針落部爲支點邊 擺動邊容易地送進針落部。因此，即使像潛水衣 面非常不滑的布，也可容易而自如地進行曲線，縫g 表面有許多彎曲之高裝飾性之裝飾縫製等。 本發明之縫紉機之壓布裝置之旋轉體，係可^堇@於^_ 著連接壓布件緊壓部及針落部中心之縫製進行方向上之直 線之左右位置，尤其是如請求項1中所記載之發明，藉由 於隔著上述直線之左右位置配設至少左右一對旋轉體，使 得在壓件與布之全接觸面積小之下保持容易進行曲線縫製 等之狀態，同時對隔著針落部之左右的布施加大致均勻的 強制進給力，而不會使布突然地蛇行，也不會使左右2塊 布有偏差，而能確實而順暢地予以進給引導。 又，如請求項1中所記載的，在至少左右一對旋轉體 中至少一方，具有用來僅容許往進給布引導作用方向之旋 轉的單向旋轉離合器，使得當縫製作業者爲進行曲線縫製 等而將手持之布以針落部爲支點左右擺動操作時’即使胃 進給布引導作用方向反方向之旋轉力作用於旋轉體’ 限制該旋轉體之逆向旋轉，因此，無論布左右擺動’均可 將布確實地往縫製進行方向送進去。 又，在上述請求項1中所記載之發明的縫賴機之壓布 裝置中，如請求項2中所記載的，可將茔少左右一對旋轉 體分別以可旋轉之方式支承於，透過基台而固定於縫，初機 臂部下端部之支撐台下端附近，但最好是如請求項4中所1 記載的，將至少左右一對旋轉體安裝於固定在壓布件本體 6 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 593824 A7 __B7__ 五、發明說明（） 之拖架之左右位置，並可與壓布件本體一起上下往復運動 。在此情形，當在針板上設定布時，隨著被向上舉起之壓 布件本體的上升操作，可使左右旋轉體一起往針板上方上 升，使布之設定作業不因被旋轉體妨礙而容易進行，而且 在布設定後可使要下降之旋轉體外周下端部與壓布件本體 一起從正上方去接觸布表面而往垂直下方緊壓布，不會對 布施加造成縐褶等之原因的沒用分力，而可將旋轉體下降 設定成可發揮既定進給布引導作用。 又如請求項4所記載，至少左右一對旋轉體透過拖架 而可與壓布件本體一起上下往復運動，其中該等至少左右 2個旋轉體係如請求項5所記載，以在上述拖架之左右位 置之安裝銷爲支點能上下搖動地被樞支著，並以可旋轉之 方式被支承於往縫製進行方向上游側延設之左右搖動支撑 構件之縫製進行方向下游側端部；並且在該等左右搖動支 撐構件之縫製進行方向下游側端部，設有以上述安裝銷爲 支點往緊壓布方向彈壓旋轉體之彈簧；藉此，以彈簧之彈 壓力來對搖動支撐構件施加圍繞安裝銷（支點）之旋轉力矩 ，而可透過旋轉力矩將旋轉體之外周下端部間接地彈性緊 壓於布表面，相較於將旋轉體以配置於其上方之彈簧之彈 壓力直線地彈性緊壓於布表面的情形，可使旋轉體較輕易 地追隨布厚度之變動而彈性變形，可更確實地達到布之左 右均等的進給引導之所期望的目的。 又，就配設有至少左右一對旋轉體之縫紉機之壓布裝 置而言，使至少左右一對旋轉體如請求項2所記載，以可 7 尺度適用中國國家標準（CNS)A4規格（210 X 297公髮Ί 一~ -----------裝--------訂 *·-------- (請先閱讀背面之注意事項再填寫本頁) 593824 A7 五、發明說明（） 旋轉之方式支承於縫紉機臂部下端部之固定支撐台時，藉 由如請求項3所記載之技術內容，亦即，在以可旋轉之方 式支承至少左右一對旋轉體之支撐台與在該等支撐台以可 上下滑動固定自如之方式重合著之滑動板之間，張設有往 下方滑動彈壓支撐板之彈簧，由於使滑動板上下滑動固定 來調節彈簧之張力，使得至少左右一對旋轉體對布之彈性 緊壓力可左右分別調整；另外，將至少左右一對旋轉體如 請求項4及5，安裝於固定在壓布件本體之拖架之左右位 置時，藉由如請求項6所記載之技術內容，亦即，在以可 旋轉之方式樞支於上述左右搖動支撐構件之縫製進行方向 下游側端部的塊構件，安裝有彈簧壓調整用公螺絲之下端 部，在螺合於該彈簧壓調整用公螺絲上方部之螺帽與旋轉 體安裝用拖架之間介入往緊壓布方向彈壓旋轉體之上述彈 簧，藉由調節螺帽在上述公螺絲之螺合位置，可左右分別 調整至少左右一對旋轉體之對布之彈性緊壓力；在將左右 之布以端部對向之狀態縫製之情形，及在以端部重合之狀 態縫製之情形，均可隨著其左右彼此不同的布厚度，將左 右之旋轉體所造成之彈性彈壓力分別調整爲適切的値，故 即使縫製形態有所不同，均可將整塊布確實、順暢而左右 均等地進給引導，而可進一步謀求縫製品質之提高。 又如請求項1所記載之發明之縫紉機之壓布裝置，如 請求項7所記載，至少左右一對旋轉體，係具有不同直徑 的構成，位於裝飾線鉤及裝飾線載具之運動路徑側的旋轉 體之直徑較他方側之旋轉體之直徑爲大，並且左右之旋轉 8 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -------------------訂-------- (請先閱讀背面之注意事項再填寫本頁) α邛24 Α7 __Β7 I、發明說明（） 體之旋轉中心則配置成縫製進行方向上前後錯開，小徑側 之旋轉體之旋轉中心較大徑側之旋轉體之旋轉中心更爲靠 近針落部；藉此，將設於針落部之左右一方側之大徑側旋 轉體之寬闊的內部空間，利用於裝飾線鉤及裝飾線載體之 運動空間而使兩者（旋轉體、裝飾線鉤及裝飾線載體）之運 動不互相干擾，又，使該小徑側旋轉體之旋轉中心較大徑 側旋轉體之旋轉中心更爲靠近針落部，故即使使用異徑之 旋轉體，也可使2塊左右剛開始縫之布之進給量大致相等 ’而防止剛開始縫之布發生不齊的現象。 又，如請求項1所記載之發明之縫紉機之壓布裝置， 如請求項8所記載，至少左右一對旋轉體，係具有不同直 徑的構成，位於裝飾線鉤及裝飾線載具之運動路徑側的旋 轉體之直徑較他方側之旋轉體之直徑爲大，並且接觸布上 且將布緊壓於進給齒的左右旋轉體之外周下端部之位置則 在縫製進行方向上前後錯開；藉此構成也可與上述相同地 ，使2塊左右剛開始縫之布之進給量大致相等，而防止剛 開始縫之布發生不齊的現象。 【發明之較佳實施例】 第1圖係使用本發明第1實施例之壓布裝置的送出腕 型縫紉機之針落部近旁之槪略立體圖，在縫紉機臂部1之 前端部，縫製進行方向Y之前後排列有針架2與壓桿3， 其被垂下支撐成可上下往復運動自如，在針架2之下端部 ，則透過針夾2A安裝有複數根針4，而且在壓桿3之下端 9 ------------41^ 裝------^—訂-------- (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 593824 A7 ___ _ 五、發明說明（） 部，則固定支撐著壓布件本體5。 另一方面，在細幅筒型壓缸頭部6之上面固定著針板 7，並且在該針板7下部之壓缸頭部6內裝有左右一對，具 有往針板7上面突出之橢圓狀運動軌跡、將設定在針板7 上之布W(左右的布Wl、Wr)強制地往縫製進行方向γ輸 送的可動進給齒8L、8R，還收納著線鉤及進給機構等用來 構成縫製動作之零件(這些係周知，故省略其詳細的說明及 圖示）。 第2圖〜第4圖係使用於第1實施例的送出腕型縫紉 機之壓布裝置之主要部放大俯視圖、主要部放大前視圖、 及主要部放大左側視圖；在上述壓布件本體5上，形成有 用來讓針4往上下方向貫穿移動的針落部(針落孔)5a，並 且在該針落孔5a之縫製進行方向γ下游側之位置嵌合支 撐著壓布件（以下稱爲壓塊)9，其透過收納於筒狀部（上端 閉塞)(圖示省略)之彈簧（圖示省略），將布W(W1、Wr)彈性 地往針板7之上面側，亦即往可動進給齒8L、8R側緊壓 〇 在上述壓布件本體5上具有，用來在左右之布W1、 Wr之縫合處上面縫上上裝飾線的裝飾線鉤15及裝飾線載 體16，該裝飾線鉤15及裝飾線載體16係配置成分別以針 落部5a之右側之空間爲運動空間，在水平面內往第2圖箭 頭X方向往復搖動運動。 有一連結上述壓布件本體5之針落部5a之寬度方向中 心，與壓塊9之寬度方向中心、沿著縫製進行方向Y的直 10 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ------------裝--------訂-------- (請先閱讀背面之注意事項再填寫本頁) 593824 A7 _ B7_ 五、發明說明（） (請先閱讀背面之注意事項再填寫本頁) 線，也有左右一對布進給引導用旋轉體12L、12R ’其將左 右之布Wl、Wr利用各外周下端部彈性地緊壓於可動進給 齒8L、8R ;左右一對布進給引導用旋轉體12L、12R係分 別以可旋轉之方式支承於隔著直線L之左右位置、在縫紉 機臂部1之下端部透過基台14L、14R而固定的箱型旋轉 台支撐台13L、13R之下端附近。 該等左右一對旋轉體12L、12R在作動不干擾壓布件 本體5及壓塊9之範圍配置成接近針落部5a，藉此，上述 壓塊9之下面緊壓部與各旋轉體12L、12R之外周下端部 121、12r之間，沿著縫置進行方向Y之直線距離被儘可能 地設定成小的値。 詳述之，左右一對旋轉體12L、12R中左旋轉體12L ，係例如直徑30mm、從針落部5a之中心到旋轉中心12Lo 之距離L1爲0.4mm時，以讓該旋轉中心12Lo沿著水平面 之姿勢被支承於旋轉體支撐台13L，右旋轉體12R則例如 直徑40mm、形成爲大致喇叭狀，並且從針落部5a之中心 到旋轉中心12Ro之距離R1爲4_6mm時，以讓該旋轉中 心12Ro相對於水平面傾斜之姿勢被支承於旋轉體支撐台 13R。 如上所述，爲了將以旋轉中心12Ro相對於水平面傾 斜之姿勢可旋轉地受支承的大徑喇叭狀右旋轉體12R之寬 廣內部空間利用於裝飾鉤15及裝飾線載體16之往復搖動 運動空間，裝飾鉤15及裝飾線載體16配置於壓布件本體 5與大徑喇叭狀右旋轉體12R之間，藉此來使右旋轉體 11 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 593824 A7 ___B7__ 五、發明說明（） 12R，與裝飾飽15及裝飾線載體16之運動不會互相干擾。 又，在可旋轉地支撐左右一對旋轉體12L、12R之箱 型旋轉體支撐台13L、13R內，如第5圖所示分別裝有將 卡止片（支撐該等旋轉體12L、12R)17L、17R向下方彈壓 之螺旋彈簧18L、18R ;另有彈簧緊壓片19L、19R，係抵 接於該等螺旋彈簧18L、18R上端部並於旋轉體支撐台 13L、13R卡合保持成僅可上下滑動自如，該等彈簧緊壓片 19L、19R螺合於具有彈簧壓調整用旋轉鈕20L、20R的公 螺紋21L、21R，藉由旋轉鈕20L、20R之旋轉操作所造成 的彈簧緊壓片19L、19R之上下移動，使左右一對旋轉體 12L、12R對布W之彈性緊壓力可左右個別調整。 其次，說明上述構成之第1實施例之縫紉機之壓布裝 置的壓布動作。 使壓布件本體5上升後，如第1圖〜第3圖所示，將 左右之布Wl、Wr以其端部彼此對向之狀態(或者是端部重 合之狀態)設定在針板7上，然後使壓布件本體5下降再使 縫紉機旋轉而開始縫製。 隨著縫製之開始，設定在針板7上之布W(W1、Wr)， 係針落部5a之縫製進行方向Y上游側部份藉由左右一對 旋轉體12L、12R之外周下端部，又，針落孔5a之縫製進 行方向Y下游側部份則藉由壓塊9，被可動進給齒8L、8R 彈性地緊壓於針板7之上面側，這些受到可動進給齒8L、 8R所產生之強制進給力的布W，以不左右晃動及偏位之狀 態向縫製進行方向Y直線地被進給引導，同時，左右之布 12 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ------------4^ 裝------^—訂*_-------- (請先閱讀背面之注意事項再填寫本頁) 593824 κι ___Β7__ 五、發明說明（）593824 B7 V. Description of the Invention [Background of the Invention] 1. Field of the Invention The present invention relates to a cloth pressing device for a sewing machine. In particular, it relates to a sewing machine for sewing a cloth with a large thickness and a non-slip surface, such as a wetsuit cloth coated on the surface or coated with a waterproof rubber film, with the ends facing each other or the ends overlapping. Cloth pressing device. 2. Disclosure of the Invention The "press" of the cloth presser of this kind of sewing machine is designed to feed the cloth set on the throat plate straight and smoothly in the direction of sewing without swinging left and right. Where the rear feed teeth correspond 'The part of the cloth is elastically pressed tightly on the upper side of the needle plate, that is, the front and rear feed teeth, so generally press cloth parts such as plate springs are mounted on the press that can be reciprocated up and down freely The lower end of the rod, the cloth pressing member has a length from the downstream side to the upstream side in the sewing direction of the needle drop portion, and a "wide horizontal width corresponding to the approximate full width of the left and right pair of feed teeth" and as a whole The pressing area of the cloth is set to be large. In the conventional cloth pressing device of the sewing machine (as described above, a cloth pressing member having a pressing area like a plate spring set to be long along the sewing progress direction and wide in width and width), it is used as a knitted fabric. When the cloth with a slippery surface is the object ', because the pressing surface of the cloth pressing member and the cloth surface are slippery, even if the pressing area of the cloth pressing member is between the cloth surface and the pressing surface of the cloth pressing member The contact area is large, and the frictional resistance between the two becomes small, and the predetermined cloth feed can be performed smoothly and stably. However, when using a non-slip cloth, for example, the surface is covered or coated with an anti-three paper rule ^ Applicable to China National Standard (CNS) A4 (210 X 297 mm) ^ Cold --- --I-丨- --- · I -------------- I (Please read the precautions on the back before filling out this page) 593824 A7 _____B7 _ 5. Description of the invention () Waterproof rubber cloth for wetsuits When it is a sewing object, because the pressing surface of the cloth pressing part and the cloth surface are not slippery and the contact area between the two is also large, the friction resistance becomes very large, and the brake is applied between the two surfaces, which is likely to occur. Problems with poor sewing include, for example, the inability to feed the cloth smoothly, and even if the cloth can be fed, the cloth will oscillate from side to side, causing uneven and unstable feeding, damaging the cloth, and making the sewing pitch uneven. In order to prevent problems on the sewing surface, conventionally, when a cloth with a non-slip surface was used as the sewing object, the surface of the cloth was first coated with oil such as lubricating oil before sewing. However, in this case, the cloth must be sewn. The surface is coated with oil beforehand, and the oil is removed after sewing. Many processes that are not directly related to sewing are required, which not only reduces the work efficiency, but also causes the problem that the sewing products are stained with oil. [Summary of the invention] The present invention is to solve the above problems, and the object of the present invention is to provide a cloth pressing device for a sewing machine, so that the cloth does not shake left and right, and even if a cloth with a non-slip surface is used as the sewing object, oiling is not required at all Waiting for the process, the cloth can be fed reliably, smoothly and evenly, and it is easy to swing the cloth from side to side, and it is easy to perform curve sewing and decorative sewing. In order to achieve the above object, the cloth pressing device of the sewing machine described in claim 1 of the invention includes: a cloth pressing member, which is arranged on the downstream side of the sewing progress direction of the needle drop part, and is installed on the cloth pressing member capable of reciprocating up and down. The main body is used to elastically press the cloth to the feed teeth on the upper side of the needle plate; and the rotary body for cloth feed guide is rotatably supported to use the lower peripheral end portion 4 ------- ------------_— Order -------- * 5 ^^ (Please read the precautions on the back before filling in this page) The paper size applies to Chinese National Standards (CNS) A4 specification (210 X 297 mm) 593824 A7 _____ Β7 5. Description of the invention () The cloth is elastically pressed against the feed teeth; it is characterized in that the above-mentioned cloth feed guide has at least one pair of rotating bodies A straight line in the sewing progress direction connecting the center of the pressing part of the clamp and the center of the needle drop part is arranged on the left and right rotating bodies, and at least one of at least one of the left and right rotating bodies is provided to allow only the feed Unidirectional rotary clutch that guides the cloth in the direction of action; and for the cloth feed guide The rotating body is arranged so that the range of the pressing body and the pressing piece does not interfere with the needle drop portion during operation, and the sewing between the pressing portion of the pressing piece and the lower end of the rotating outer periphery of the upper surface of the contact cloth is sewn. The linear distance in the progress direction is set as small as possible. According to the invention of claim 1 of the above structure, the woven fabric set on the needle plate is pressed elastically by the cloth pressing member on the downstream side of the sewing progress direction with the needle drop portion and the rotating body arranged on the upstream side of the sewing progress direction. The feed teeth on the upper side of the needle plate reliably apply the forced feed force generated by the feed teeth to the cloth, and can feed the guide cloth, even like a wetsuit cloth covered or coated with a waterproof rubber film. The cloth with a very non-slip surface is the object of sewing. You do n’t need to spend time applying oil on the cloth surface before sewing and removing oil after sewing, so that the friction resistance between the rotating body and the cloth surface is very small. The cloth is guided reliably, smoothly, and evenly. Therefore, it is possible to prevent the cause of poor sewing results such as cloth damage and irregular seam pitch. In addition, by using the rotating body, a small pressing surface (the lower end of the outer periphery of the rotating body) is applied to the cloth surface, even if the pressing area of the cloth pressing member is applied, the entire pressing surface can be brought into contact with the cloth surface. The area is very small, and the straight line distance in the direction of sewing between the lower end of the rotating body (the pressing surface with a small area) and the pressing portion of the clamp is very small. The dimensions are applicable to China National Standard (CNS) A4 specifications (210 X 297 mm) (Please read the precautions on the back before filling out this page)-Install 593824 A7 B7 ----—_ 5. Description of the invention () (please first (Read the precautions on the back and fill in this page.) In front of the needle drop section, swing the hand-held cloth into the needle drop section while swinging with the needle drop section as a fulcrum. Therefore, even if the surface of the wetsuit is very slippery, it can be easily and freely curved, and the surface of the seam g has many curved and highly decorative decorative sewing. The rotating body of the cloth pressing device of the sewing machine of the present invention can be connected to the left and right positions of a straight line in the direction of the sewing progress connecting the pressing part of the cloth pressing part and the center of the needle drop part, especially as requested in item 1 In the invention described in the above, at least a pair of left and right rotating bodies are arranged through the left and right positions of the straight line, so that the state of easy curve sewing and the like can be maintained while the total contact area of the pressing member and the cloth is small. The cloth on the left and right of the needle drop portion applies a substantially uniform forced feeding force, without causing the cloth to snake suddenly, and without deviation between the two cloths on the left and right, and can reliably and smoothly feed and guide. In addition, as described in claim 1, at least one of the left and right pair of rotating bodies has a one-way rotating clutch for allowing rotation only in the direction in which the feed cloth is guided, so that when a sewing operator performs a curve When sewing a hand-held cloth with a needle drop as a fulcrum to swing left and right, 'even if a rotational force acting in the opposite direction of the stomach feeding cloth's guiding direction acts on the rotating body', the reverse rotation of the rotating body is restricted. 'You can feed the cloth surely in the sewing direction. Further, in the cloth press device of the sewing machine according to the invention described in claim 1, as described in claim 2, a pair of left and right rotating bodies can be rotatably supported by the penetrator, and can be transmitted through. The abutment is fixed to the seam, near the lower end of the support base of the lower end of the initial arm portion, but it is preferable to install at least one pair of left and right rotating bodies on the main body of the presser as described in item 1 of claim 4. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 593824 A7 __B7__ 5. The left and right positions of the trailer of the invention (), and can be reciprocated up and down together with the body of the cloth pressing part. In this case, when setting the cloth on the needle plate, the left and right rotating bodies can be raised together above the needle plate with the raising operation of the cloth pressing body being lifted upward, so that the setting operation of the cloth is not caused by the body being rotated. Obstruction is easy to carry out, and after the cloth is set, the lower end of the outer periphery of the rotating body to be lowered together with the cloth pressing body can directly contact the surface of the cloth from above and press the cloth vertically downward, without causing creases on the cloth. The reason for this is that there is no use of force, and the rotating body can be lowered so that the predetermined feed cloth guide function can be exerted. Also as described in claim 4, at least a pair of left and right rotating bodies can reciprocate up and down with the cloth pressing body through the carriage, wherein the at least two left and right rotation systems are described in claim 5, so that The mounting pins at the left and right positions are pivotally supported pivotally up and down, and are rotatably supported at the downstream end of the sewing progress direction of the left and right rocking support members extending upstream in the sewing progress direction; and The left and right end portions of the left and right rocking support members in the sewing progress direction are provided with springs for urging the rotating body in the direction of pressing the cloth with the mounting pin as a fulcrum; thereby, the rocking support members are surrounded and installed by the spring pressure of the springs. The rotation torque of the pin (fulcrum) can indirectly elastically press the lower end of the outer periphery of the rotating body against the surface of the cloth through the rotating torque, compared with the elastic pressing of the rotating body in a straight line by the spring pressure of a spring disposed above it. On the surface of the cloth, the rotating body can be elastically deformed more easily in accordance with the change in the thickness of the cloth, and it can more reliably achieve the uniform feed of the left and right sides of the cloth. Guide the desired purpose. In addition, for a cloth press device of a sewing machine equipped with at least a pair of left and right rotating bodies, the at least one pair of left and right rotating bodies can be applied to the Chinese National Standard (CNS) A4 standard (210) on a 7 scale as described in claim 2. X 297 public hair Ί a ~ ----------- install -------- order * · -------- (Please read the precautions on the back before filling this page ) 593824 A7 V. Description of the invention () When the fixed support table is supported on the lower end of the arm of the sewing machine in a rotating manner, the technical content as described in claim 3 is used, that is, at least one Between the support bases of the rotating body and the sliding plates which are overlapped with each other in such a way that they can be slidably fixed up and down, a spring that slides and compresses the support plate downward is provided. The springs are adjusted by sliding and fixing the sliding plates up and down. The tension of the at least one pair of rotating bodies can be adjusted left and right respectively. In addition, the at least one pair of rotating bodies such as the items 4 and 5 are installed on the left and right sides of the carriage fixed to the cloth pressing body. Position, with the technical content as described in claim 6, That is, the lower end portion of the spring member for spring pressure adjustment is screwed to the block member pivotally supported on the downstream end of the left-right swing support member in the sewing progress direction, and is screwed to the spring pressure adjustment screw. At least one pair of left and right can be adjusted from left to right by adjusting the nut on the upper part of the screw and the spring for mounting the rotating body to press the rotating body in the direction of pressing the cloth. The elastic tight pressure of the rotating body on the cloth; when the left and right cloths are sewn with the ends facing each other, and when the ends are overlapped with each other, the thicknesses of the left and right cloths may be different from each other. The elastic elastic pressure caused by the left and right rotating bodies are adjusted to appropriate 値, so even if the sewing shape is different, the entire cloth can be fed and guided surely, smoothly, and left and right, and the quality of the sewing can be further sought. As described in claim 7, at least one pair of left and right rotating bodies has a structure with different diameters. The diameter of the rotating body on the movement path side of the decorative line hook and the decorative line carrier is larger than the diameter of the rotating body on the other side, and the left and right rotation is 8 This paper size is applicable to China National Standard (CNS) A4 (210 X 297) Mm) ------------------- Order -------- (Please read the notes on the back before filling in this page) α 邛 24 Α7 __Β7 I Explanation of the invention () The rotation center of the body is arranged to be staggered back and forth in the sewing progress direction, the rotation center of the rotation body on the small diameter side and the rotation center of the rotation body on the larger diameter side are closer to the needle drop portion; The wide internal space of the large-diameter-side rotating body on the left and right sides of the needle drop portion uses the movement space of the decorative thread hook and the decorative thread carrier to move the two (rotating body, decorative thread hook, and decorative thread carrier). Do not interfere with each other, and make the center of rotation of the small-diameter rotating body larger than the center of rotation of the small-diameter rotating body closer to the needle drop portion, so even if a different-diameter rotating body is used, about two pieces of sewing can be just started. The feed amount of the cloth is approximately equal to prevent the unevenness of the cloth at the beginning of sewing. . In addition, as described in claim 1, the at least one pair of left and right rotating bodies of different inventions are located on the movement path of the decorative thread hook and the decorative thread carrier. The diameter of the rotating body on the other side is larger than the diameter of the rotating body on the other side, and the position of the lower end of the outer periphery of the left and right rotating bodies contacting the cloth and pressing the cloth tightly against the feed teeth is staggered back and forth in the sewing progress direction; This structure can also make the feed amount of the two pieces of cloth that are just started to be stitched approximately the same as the above, and prevent unevenness of the cloth that just started to be stitched. [Preferred Embodiment of the Invention] FIG. 1 is a schematic perspective view of the vicinity of the needle drop portion of the feeding wrist type sewing machine using the cloth pressing device of the first embodiment of the present invention. Y is arranged with the needle holder 2 and the pressing rod 3 in front and back. It is suspended and supported to reciprocate up and down freely. At the lower end of the needle holder 2, a plurality of needles 4 are installed through the needle clamp 2A. Bottom 9 ------------ 41 ^ Loading ------ ^-Order -------- (Please read the precautions on the back before filling this page) This paper size Applicable to China National Standard (CNS) A4 specification (210 X 297 mm) 593824 A7 ___ _ 5. The description of the invention () part, then fixedly supports the cloth pressing body 5. On the other hand, a needle plate 7 is fixed on the thin cylinder head 6 and a pair of left and right is installed in the cylinder head 6 on the lower part of the needle plate 7 and has a protrusion protruding to the top of the needle plate 7. Elliptical movement trajectory, the movable feed teeth 8L, 8R forcing the cloth W (left and right cloths Wl, Wr) set on the throat plate 7 to be sewn in the direction γ, and also contains a hook and a feed mechanism, etc. Parts used to constitute the sewing action (these are well known, so detailed descriptions and illustrations are omitted). 2 to 4 are enlarged plan views of a main part, an enlarged front view of the main part, and an enlarged left side view of the main part of the cloth pressing device used for the wrist-type sewing machine of the first embodiment; A needle drop part (needle drop hole) 5a is formed to allow the needle 4 to penetrate in the up-down direction, and a cloth presser (hereinafter referred to as a needle presser) is fitted and supported at a position on the downstream side of the sewing progress direction γ of the needle drop hole 5a. Pressing block) 9 passes through the spring (not shown) stored in the cylindrical portion (the upper end is closed) (not shown), and elastically moves the cloth W (W1, Wr) to the upper side of the needle plate 7, that is, to The movable feed teeth 8L and 8R are tightly pressed on the main body 5 of the above-mentioned cloth presser body, and a decorative thread hook 15 and a decorative thread carrier 16 for sewing decorative threads on the seams of the left and right cloths W1 and Wr. The decorative thread hook 15 and the decorative thread carrier 16 are respectively arranged to use the space on the right side of the needle drop portion 5a as a movement space, and reciprocate in a horizontal plane in the direction of arrow X in FIG. 2. There is a straight 10 connecting the center of the needle drop portion 5a of the above-mentioned pressing body 5 and the center of the width 9 of the pressing block 9 along the sewing direction Y. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) ------------ Installation -------- Order -------- (Please read the precautions on the back before filling this page) 593824 A7 _ B7_ V. Description of the invention () (Please read the precautions on the back before filling this page). There are also a pair of left and right cloth feed guide rotating bodies 12L and 12R 'which use the left and right cloths Wl and Wr at the lower ends of the outer periphery. The two parts are elastically pressed against the movable feed teeth 8L and 8R; the left and right pair of cloth feed guide rotating bodies 12L and 12R are rotatably supported at the left and right positions across the straight line L and at the sewing machine arm 1 The box-type rotary table supporting tables 13L and 13R, whose lower ends are fixed through the bases 14L and 14R, are near the lower ends. The pair of left and right rotating bodies 12L and 12R are arranged close to the needle drop portion 5a in a range in which the operation does not interfere with the cloth pressing body 5 and the pressing block 9, whereby the pressing portion under the pressing block 9 and each rotating body 12L The straight line distance between the outer peripheral lower end portions 121 and 12r along the stitching direction Y is set as small as possible. In detail, the left and right rotating bodies 12L and 12L in the left and right pair of rotating bodies 12L, for example, have a diameter of 30mm, and the distance L1 from the center of the needle drop portion 5a to the rotating center 12Lo is 0.4mm, so that the rotating center 12Lo follows The horizontal posture is supported by the rotating body support table 13L, and the right rotating body 12R is, for example, 40 mm in diameter and formed into a substantially trumpet shape. When the distance R1 from the center of the needle drop portion 5a to the rotating center 12Ro is 4-6 mm, the rotation is allowed. The center 12Ro is supported by the rotating body support table 13R with the attitude inclined with respect to the horizontal plane. As described above, in order to use the wide internal space of the large-diameter horn-shaped right rotator 12R rotatably supported in a posture where the rotation center 12Ro is inclined with respect to the horizontal plane, the reciprocating rocking movement space of the decorative hook 15 and the decorative thread carrier 16 is used, The decorative hook 15 and the decorative thread carrier 16 are arranged between the cloth pressing body 5 and the large-diameter trumpet-shaped right rotating body 12R, so that the right rotating body 11 can be used. This paper size is in accordance with China National Standard (CNS) A4 (210 X 297 mm) 593824 A7 ___B7__ 5. Description of the invention () 12R, will not interfere with the movement of the decoration 15 and the decoration line carrier 16. Also, as shown in FIG. 5, box-shaped rotating body supporting tables 13L and 13R rotatably supporting a pair of left and right rotating bodies 12L and 12R are provided with supporting pieces (supporting the rotating bodies 12L and 12R). 17L, 17R coil springs 18L, 18R that are pressed downward; another spring pressing pieces 19L, 19R are abutted on the upper ends of these coil springs 18L, 18R and are engaged with the rotating body support tables 13L, 13R to maintain only It can slide up and down freely. These spring pressing pieces 19L and 19R are screwed to the male threads 21L and 21R with the spring pressing adjusting rotary buttons 20L and 20R. The spring pressing caused by the rotating operation of the rotary buttons 20L and 20R The pieces 19L and 19R move up and down, so that the elastic tight pressure of the pair of left and right rotating bodies 12L and 12R on the cloth W can be adjusted individually from left to right. Next, the cloth-pressing operation of the cloth-pressing device of the sewing machine according to the first embodiment will be described. After raising the clamp body 5, as shown in Figs. 1 to 3, the left and right cloths Wl and Wr are set in a state where the ends thereof face each other (or a state where the ends overlap) on the needle plate 7 Then, the main body 5 is lowered and the sewing machine is rotated to start sewing. With the start of sewing, the cloth W (W1, Wr) set on the needle plate 7 and the upstream portion of the sewing progress direction Y of the needle drop portion 5a are formed by the outer peripheral lower end portions of the pair of left and right rotating bodies 12L, 12R. In addition, the downstream portion in the sewing progress direction Y of the needle drop hole 5a is elastically pressed against the upper side of the needle plate 7 by the movable feed teeth 8L, 8R by the pressing block 9, and these are received by the movable feed teeth 8L, The cloth W with a forced feed force generated by 8R is fed in a straight line in the sewing direction Y without left and right shaking and deviation. At the same time, the left and right cloths 12 are in accordance with China National Standard (CNS) A4 specifications. (210 X 297 mm) ------------ 4 ^ equipment ------ ^-order * _-------- (Please read the precautions on the back first (Fill in this page) 593824 κι ___ Β7__ 5. Description of the invention ()
Wl、Wr被縫合，並且在該縫合處上面則裝飾線飽15及裝 飾線載體桿16之S力作而縫Jl上裝飾線(圖不省略）’來進行 裝飾縫製。 這種縫製時之縫製進行方向Y上游側之布w部份之 緊壓機構，係使用，布W部份上面之接觸部隨著布之進給 而依序替換的可自由旋轉之旋轉體12L、12R ’故即使是以 例如防水橡膠膜之被覆或施有塗層(coatins)之潛水衣用布 般表面非常不滑之布W爲縫製對象時’旋轉體12L、12R 與布W表面之間的摩擦抵抗非常小。因此’不須麻煩於縫 製前於布表面塗佈上油並於縫製後除去油’即可藉由壓塊 9與旋轉體12L、12R之合作’將布W透過可動進給齒8L 、8R確實、順暢且均等地進給引導向針落部5a，結果， 可防止損傷布W、接縫間距不規則等情形發生’而不使縫 製結果惡化。 又，藉由旋轉體12L、12R之使用，布W表面之緊壓 作用面積，爲如第6圖中往右下方之斜線所示之區域S11 ' Sir，兩旋轉體12L、12R之外周下端部121、12r所產生 之極小的面積，與如第6圖中往左下方之斜線所示之區域 S2，由壓塊9所產生之緊壓面積之合計値；整個緊壓面對 布W表面之緊壓作用面積是非常小的。還有，以往使用至 今之板彈簧等壓布件所產生之緊壓作用面積係被第6圖中 假想線所包圍之區域S3、S3加上區域S2之合計値，本發 明與這種習知之壓布件相較，能謀求緊壓作用面積顯著地 減少。再者，左右一對旋轉體12L、12R之作爲布緊壓面 13 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -----------^裝------^—tr--------- (請先閱讀背面之注意事項再填寫本頁) 593824 A7 ___B7_____ 五、發明說明（） 的外周下端部12卜12r，與壓塊9及針落部5a之間的沿縫 製進行方向Y之直線距離儘可能地設定成小的値’故縫製 作業者在針落部5a眼前將手持的布W邊以針落部5a爲支 點阻力少地往左右擺動，邊往針落部5a進給。 藉此，即使是像潛水衣用布般表面非常不滑的布’也 能容易而自如地進行，將曲線部位縫合之曲線縫製’與利 用裝飾鉤15及裝飾線載體桿16之彎曲多且裝飾性高之裝 飾縫製等。又，由於使用左右一對旋轉體12L、12R，對針 落部5a左右之布施加大致均等的強制進給力，而不使布W 突然地蛇行，也不使左右2塊布Wl、Wr產生偏位，能將 布W確實而順暢地往針落部5a進給引導。 又，在將左右之布Wl、Wr以端部對向之狀態縫製時 ，及在以端部重合狀態縫製時，左右之布厚彼此不同，但 以與該相異的左右之布厚相對應之方式旋轉操作彈簧壓調 整用旋轉鈕20L、20R，來將螺旋彈簧18L、18R所產生之 向下彈壓力，即，左右一對旋轉體12L、12R對布W之彈 性緊壓力，左右分別調整到適當的値，使得在任何縫製形 態，均將整個布確實而順暢地且左右均等地進給引導，而 能謀求縫製結果更爲良好。 第7圖係顯示應用本發明第2實施例之壓布裝置的送 出腕型縫紉機之針落部近旁之槪略立體圖。第8圖及第9 圖係應用第2實施例之送出腕型縫紉機之壓布裝置之主要 部放大俯視圖及主要部放大左側視圖。在該第2實施例中 ’使用板狀旋轉體支撐台13L、13R來代替上述第1實施 14 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -----------裝--------訂、--------- (請先閱讀背面之注意事項再填寫本頁) 593824 A7 _____B7 ___ 五、發明說明（） 例中之箱型之旋轉體支撐台，在該板狀旋轉體支撐台13L 、13R之外面，透過長孔21L、21R及螺栓·螺帽22L、 22r疊上可上下滑動固定自如的滑動板23L、23R ’橫跨從 該滑動板23L、23R經由長孔21L、21R而向外突出之針狀 突起24L、24R，與從板狀旋轉體支撐台13L、13R上端部 突出之突片25L、25R之間張設螺旋彈簧18L、18R ;藉由 將滑動板23L、23R以上下任意滑動並固定’可分別調整 由左右一對旋轉體12L、12R所產生對布之彈性緊壓力’ 在這一點上雖與上述第1實施例不同，但其他構成因與上 述第1實施例相同，而於那些部分附上相同的符號並省略 那些部分之詳細說明。 又，在第7圖及第8圖所示之第2實施例之送出腕型 縫紉機之壓布裝置中，僅有左右一對旋轉體12L、12R所 產生對布W之彈性緊壓力之調整要領不同，本來的壓布動 作本身則因與於上述第1實施例所說明的相同，就該壓布 動作之詳細的說明也省略。 又，在上述第2實施例中，藉由將連在左右一對旋轉 體13L、13R之基台14L、14R，如第7圖所示，透過設定 在左右一對旋轉體12L、12R旋轉中心12Lo、12Ro附近之 支點軸26L、26R而樞支安裝於縫紉機臂部1之下端部， 使得左右一對旋轉體12L、12R可圍繞該等支點軸26L、 26R左右搖動。由於採用這種構成，當進行曲線縫製時， 可使左右一對旋轉體12L、12R追蹤布W之擺動操作來搖 動，而能更穩定地進行曲線縫製時布之進給作用。 15 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) n n n 一OJI ϋ ϋ ϋ ϋ ϋ 593824 A7 ____B7 _ 五、發明說明（） 又，也可進行回授控制來使可搖動之左右一對旋轉體 12L、12R，接受偵知布端部的感測器之檢測訊號而電氣地 且自動地搖動，也可進行程式控制，其先使布的形狀變爲 程式資料並加以記憶，縫製時再叫出該程式資料，使左右 一對旋轉體12L、12R自動地左右搖動，在此省略圖示說 明。 第10圖至第1 2圖係應用本發明之第3實施例之送出 腕型縫紉機之壓布裝置之主要部放大俯視圖、主要部放大 左側視圖及主要部放大右側視圖。在該第3實施例中，在 壓桿3之下端部透過螺栓27固定支撐壓布件本體5，在該 壓布件本體5藉由螺合於螺栓27之螺帽28之鎖緊來固定 俯視大致凹狀之旋轉體安裝用拖架29,將異徑之左右一對 旋轉體12L、12R，安裝在該拖架29之左右兩側位置並作 成可與壓布件本體5 一體上下往復運動。W1 and Wr are sewn, and on the seam, the decorative thread 15 and the carrier thread 16 of the decorative thread S work together to sew J1 with a decorative thread (not shown) to perform decorative sewing. This kind of pressing mechanism for the cloth w part on the upstream side in the sewing progress direction Y during sewing is used. The contact part on the cloth W part is replaced by the freely rotatable rotating body 12L in order as the cloth is fed. , 12R 'Therefore, even if a cloth W with a very slippery cloth-like surface, such as a wetsuit coated or coated with a waterproof rubber film, is used as a sewing object' between the rotating body 12L, 12R and the surface of the cloth W The friction resistance is very small. Therefore, 'without the trouble of applying oil to the surface of the cloth before sewing and removing the oil after sewing', the cloth W can be transmitted through the movable feed teeth 8L and 8R by the cooperation of the pressure block 9 and the rotating bodies 12L and 12R. The feed is guided to the needle drop portion 5a smoothly and uniformly. As a result, it is possible to prevent damage to the cloth W and irregular seam pitch, etc., without deteriorating the sewing result. In addition, by using the rotating bodies 12L and 12R, the pressing area on the surface of the cloth W is the area S11 'Sir shown by the diagonal line to the lower right in FIG. 6, and the lower ends of the outer circumferences of the two rotating bodies 12L and 12R. The total area of the extremely small area generated by 121 and 12r and the area S2 shown by the diagonal line at the lower left in Figure 6 and the area of the pressing area generated by the pressing block 9; the entire pressing surface facing the surface of the cloth W The pressing area is very small. In addition, the pressing area generated by conventional press members such as leaf springs in the past is the total of the areas S3 and S3 plus the area S2 surrounded by the imaginary line in FIG. 6. Compared with cloth pressing parts, the pressing area can be reduced significantly. In addition, the left and right pair of rotating bodies 12L and 12R are used as the pressing surface 13. The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) ----------- ^ ------ ^ — tr --------- (Please read the precautions on the back before filling out this page) 593824 A7 ___B7_____ V. The lower end of the periphery of the description of the invention (12) 12r, and pressure The linear distance between the block 9 and the needle drop portion 5a along the sewing direction Y is set as small as possible. Therefore, the sewing operator uses the needle drop portion 5a as a fulcrum in front of the needle drop portion 5a. The resistance swings to the left and right with little resistance, and feeds to the needle drop portion 5a. Thereby, even a cloth with a very slippery surface like a cloth for a wetsuit can be easily and freely carried out, and the curve stitching of the curved part is sewn, and the use of the decorative hook 15 and the decorative thread carrier rod 16 has a lot of bending and decoration. Highly decorative sewing. In addition, because a pair of left and right rotating bodies 12L and 12R are used, a substantially equal forced feeding force is applied to the left and right cloths of the needle drop portion 5a without causing the cloth W to snake suddenly and the left and right cloths W1 and Wr not biased. Position, the cloth W can be fed to the needle drop portion 5a surely and smoothly. In addition, when the left and right cloths Wl and Wr are sewn in a state where the ends face each other and when the ends are overlapped, the left and right cloth thicknesses are different from each other, but correspond to the different left and right cloth thicknesses. Rotate the spring pressure adjustment rotary knobs 20L and 20R to adjust the downward spring pressure generated by the coil springs 18L and 18R, that is, the elastic tight pressure of the left and right pair of rotating bodies 12L and 12R against the cloth W. Appropriate quilting allows the entire cloth to be fed and guided surely, smoothly, and equally from side to side in any sewing form, and a better sewing result can be achieved. Fig. 7 is a schematic perspective view showing the vicinity of a needle drop portion of a feed-out type sewing machine to which a cloth pressing device according to a second embodiment of the present invention is applied; 8 and 9 are enlarged plan views of the main parts and enlarged left side views of the cloth presser of the wrist-type sewing machine to which the second embodiment is applied. In this second embodiment, 'the plate-shaped rotating body supporting tables 13L, 13R are used instead of the first implementation 14 above. This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) ------ ----- Equipment -------- Order, --------- (Please read the notes on the back before filling this page) 593824 A7 _____B7 ___ 5. Description of the invention () In the example The box-shaped rotating body support table, outside the plate-shaped rotating body support tables 13L and 13R, is provided with sliding holes 23L and 23R which can be slid up and down through long holes 21L and 21R and bolts and nuts 22L and 22r. 'Across the slide plates 23L, 23R, the needle-like protrusions 24L, 24R protruding outward through the long holes 21L, 21R, and the protrusions 25L, 25R protruding from the upper ends of the plate-shaped rotating body supporting tables 13L, 13R. Spread the coil springs 18L and 18R; by sliding and fixing the sliding plates 23L and 23R up and down at will, the elastic tight pressure on the cloth generated by the left and right rotating bodies 12L and 12R can be adjusted respectively. The first embodiment is different, but other components are the same as those in the first embodiment, and the same symbols are attached to those parts and omitted. A detailed description of those parts. Further, in the cloth pressing device of the wrist-type sewing machine of the second embodiment shown in Figs. 7 and 8, only the left and right pair of rotating bodies 12L and 12R can adjust the elastic tight pressure on the cloth W. Differently, since the original cloth pressing operation itself is the same as that described in the first embodiment, a detailed description of the cloth pressing operation is also omitted. In the second embodiment described above, the bases 14L and 14R connected to the left and right rotating bodies 13L and 13R are set to the center of rotation of the left and right rotating bodies 12L and 12R as shown in FIG. 7. The fulcrum shafts 26L, 26R near 12Lo and 12Ro are pivotally mounted on the lower end of the sewing machine arm 1, so that a pair of left and right rotating bodies 12L and 12R can swing around these fulcrum shafts 26L and 26R. With this configuration, when performing curve sewing, the pair of left and right rotating bodies 12L and 12R can be swung to follow the swing operation of the cloth W, and the cloth feed effect during curve sewing can be performed more stably. 15 This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the notes on the back before filling out this page) nnn OJI ϋ ϋ ϋ ϋ 938 593824 A7 ____B7 _ 5. Description of the invention ( ) In addition, feedback control can be performed so that the pair of rotatable left and right rotating bodies 12L, 12R can be electrically and automatically shaken by receiving the detection signal from the sensor at the end of the cloth, and program control can also be performed. It first changes the shape of the cloth into pattern data and memorizes it, and then calls out the pattern data when sewing, so that the pair of left and right rotating bodies 12L, 12R automatically swing left and right, and the illustration is omitted here. Figs. 10 to 12 are enlarged top views of the main parts of the cloth press device of the wrist type sewing machine to which the third embodiment of the present invention is applied, enlarged left side views and enlarged right side views of the main parts. In the third embodiment, the lower end of the pressure rod 3 is fixedly supported by the cloth pressing body 5 through a bolt 27, and the cloth pressing body 5 is fixed in plan view by locking the nut 28 screwed to the bolt 27 The roughly concave rotating body mounting bracket 29 is provided with a pair of left and right rotating bodies 12L and 12R of different diameters mounted on the left and right sides of the trailer 29 and can be reciprocated up and down integrally with the cloth pressing body 5.
具體來說，配設於上述旋轉體安裝用拖架29左右兩側 位置的左右支撐構件31L、31R之縫製進行方向下'游側端 部附近，透過安裝銷30L、30R被樞支成，以該安裝銷 30L、30R爲支點可上下搖動。該等左右之搖動支撐構件 31L、31R，從利用上述安裝銷30L、30R之樞支處起往縫 製進行方向上游側延設；在該支撐構件之上游側端部可旋 轉地支承左右一對旋轉體12L、12R。又，在左右之搖動支 撐構件31L、31R之縫製進行方向下游側端部，如第11圖 及第1 2圖所明示，透過銷34L、34R可旋轉地安裝，用來 安裝彈簧壓調整用公螺絲32L、32R下端部之螺絲座33L 16 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -----------裝--------訂--------- (請先閱讀背面之注意事項再填寫本頁) 593824 A7 _______B7_ 五、發明說明（） 、33R。又，右側之搖動支撐構件31R係分割爲前後二段 製作而成，且由互相連結之分割構件31rl、31r2所構成。 在安裝於上述可旋轉之螺絲座33L、33R並往上方延 伸的彈簧壓調整用公螺絲32L、32R，螺合彈簧壓調整用螺 帽35L、35R，在該螺帽35L、35R與上述旋轉體安裝用拖 架29之間介入伸長式線圏彈簧36L、36R，其以安裝銷 30L、30爲支點並透過左右之搖動支撐構件31L、31R，來 將左右一對旋轉體12L、12R彈壓向布緊壓方向；藉由調 節螺帽35L、35R相對於上述公螺絲32L、32R之螺合位置 ，而可左右分別調整線圏彈簧36L、36R所產生之彈壓力 ，即，旋轉體12L、12R對布W之彈性緊壓力。其他構成 因與上述第1實施例相同，故在這些部份附上同一符號， 並將這些的詳細說明予以省略。 又，第10圖至第1 2圖中之37L、38L及37R、38R 係調整螺絲，用來調節左右之搖動支撐構件31L、31R沿 著縫製進行方向Y之前後傾斜姿勢。又，在該第3實施例 中，使大徑喇叭狀之右旋轉體12R之旋轉中心傾斜成，越 向旋轉體內側，就越靠縫製進行方向Y下游側，藉此，右 旋轉體12R之作爲布緊壓面之外周下端部l2r之位置比左 旋轉體12L之作爲布緊壓面之外周下端部121之位置還要 稍微偏向縫製進行方向Y上游側，而對布W之進給引導作 用則與第1及第2實施例之場合完全相同地進行。 在上述構成之第3實施例之壓布裝置中，當要在針板 7上安置布W時往上方舉起之壓布件本體5之上升操作時 17 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -----------裝------^--訂--------- (請先閱讀背面之注意事項再填寫本頁) 593824 A7 ____B7 五、發明說明（） ，透過旋轉體安裝拖架29可使左右旋轉體12L、12R —起 朝針板7之上方上升，故可容易地進行布w之安置作業， 絲毫不會被旋轉體12L、12R妨礙，而且布W安置之後因 旋轉體12L、12R隨著壓布件本體5 —起下降，使其外周 下端部121、12r從正上方來接觸布W表面，故可往垂直下 方緊壓布W，因此不會發生對布W加上多餘的分力而產生 縐摺之現象。 又，左右之搖動支撐構件31L、31R之縫製進行方向 下游側端部設有彈簧36L、36R，用來將旋轉體12L、12R 以安裝銷30L、30R爲支點彈壓向布緊壓方向，故藉由彈 簧36L、36R之彈壓力而賦予搖動支撐構件31L、31R圍繞 安裝銷(支點)3〇L、30R之旋轉力矩，透過該旋轉力矩可將 旋轉體12L、12R之外周下端部121、12r間接地彈性緊壓 在布W表面上，使旋轉體12L、12R彈性位移，得以敏捷 地追蹤布W厚度之變動，而可確實地達到布W之左右均 等進給引導之所期望的目的。 又，本發明中，在上述第1〜第3實施例所述之左右 一對旋轉體12L、12R或左旋轉體12L上，最好裝進單向 旋轉離合器，其僅容許朝布進給引導作用方向之旋轉。在 此場合，縫製作業者爲了進行曲線縫製等而將手持的布W 以針落部5a爲支點擺動操作時，旋轉體12L、12R或12l 上即使有與布進給引導作用方向相反之旋轉力作用，也可 限制該旋轉體之逆向旋轉，因此，不論布如何地擺動，都 能將布確實地往縫製進行方向進給。 18 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -----------·裝------丨丨訂---------% (請先閱讀背面之注意事項再填寫本頁) 593824 κι ________Β7 _____ 五、發明說明（） 【圖式之簡單說明】 第1圖’係顯示應用本發明第1實施例之壓布裝置的 送出腕型縫紉機之針落部近旁之立體圖。 第2圖’係顯示第1實施例之壓布裝置的主要部之放 大俯視圖。 第3圖’係上述壓布裝置之主要部之放大前視圖。 第4圖’係上述壓布裝置之主要部之放大左側視圖。 第5圖’係上述壓布裝置之彈性緊壓力調整機構之放 大剖面圖。 第6圖’係說明上述壓布裝置所產生之布緊壓面之狀 況的槪略俯視圖。 第7圖’係顯示應用本發明第2實施例之壓布裝置的 送出腕型縫紉機之針落部近旁之立體圖。 第8圖’係顯示第2實施例之壓布裝置的主要部之放 大俯視圖。 第9圖’係上述壓布裝置之主要部之放大左側視圖。 第1〇圖’係顯示本發明第3實施例之壓布裝置的主要 部之放大俯視圖。 第11圖，係第3實施例之壓布裝置主要部之放大左側 視圖。 第12圖’係上述壓布裝置主要部之放大右側視圖。 【符號說明】 5 壓布件本體 19 ---- -- ________ 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ---I-------Aw --------訂--------- (請先閲讀背面之注意事項再填寫本頁) 593824 Α7 Β7 五、發明說明（） 5a 8L、8R 9Specifically, the left and right support members 31L and 31R arranged on the left and right sides of the rotating body mounting carriage 29 are pivoted in the vicinity of the end of the swimming side in the sewing direction, and are pivotally supported by the mounting pins 30L and 30R. The mounting pins 30L and 30R can be pivoted up and down as a fulcrum. The left and right rocking support members 31L and 31R are extended from the pivot support using the mounting pins 30L and 30R to the upstream side of the sewing direction; the upstream end of the support member rotatably supports a pair of left and right rotations Body 12L, 12R. In addition, as shown in Fig. 11 and Fig. 12, the downstream end portions of the left and right rocking support members 31L, 31R in the sewing progress direction are rotatably mounted through the pins 34L, 34R, and are used for attaching spring pressure adjusting screws. Screws 32L and 32R at the bottom end of the screw 33L 16 This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) ----------- installation -------- Order --------- (Please read the notes on the back before filling out this page) 593824 A7 _______B7_ V. Description of the invention (), 33R. The swing support member 31R on the right side is produced by being divided into two sections in front and back, and is composed of divided members 31rl and 31r2 connected to each other. The spring pressure adjusting male screws 32L and 32R, which are mounted on the rotatable screw bases 33L and 33R and extend upward, and the spring pressure adjusting nuts 35L and 35R are screwed together. The nuts 35L and 35R and the rotating body An extension type coil spring 36L, 36R is interposed between the mounting bracket 29, and the mounting pins 30L and 30 are fulcrum and the left and right swinging support members 31L and 31R are used to elastically press the pair of left and right rotating bodies 12L and 12R toward the cloth. Tightening direction; by adjusting the screwing positions of the nuts 35L and 35R relative to the male screws 32L and 32R, the spring pressure generated by the coil springs 36L and 36R can be adjusted left and right, that is, the rotating body 12L and 12R pairs The elastic tightness of the cloth W. The other components are the same as those in the first embodiment described above, and therefore the same symbols are attached to these portions, and detailed descriptions thereof are omitted. 37L, 38L, 37R, and 38R are adjusting screws for adjusting the left and right rocking support members 31L and 31R in the forward and backward tilting directions in the sewing progress direction Y in FIGS. 10 to 12. Furthermore, in the third embodiment, the rotation center of the large-diameter horn-shaped right-rotating body 12R is inclined so that the more toward the inside of the rotating body, the closer it is to the downstream side in the sewing progress direction Y. The position of the outer peripheral lower end portion 12r as the cloth pressing surface is slightly biased to the sewing upstream direction Y upstream of the position of the left rotating body 12L as the outer peripheral lower end portion 121 of the cloth pressing surface, and guides the feed of the cloth W. This is exactly the same as in the case of the first and second embodiments. In the cloth pressing device of the third embodiment configured as described above, when the cloth pressing body 5 which is raised upward when the cloth W is to be placed on the needle plate 7 is lifted up. 17 This paper size applies the Chinese National Standard (CNS) A4 specifications (210 X 297 mm) ----------- install ------ ^-order --------- (Please read the precautions on the back before filling (This page) 593824 A7 ____B7 V. Description of the invention (), the left and right rotating bodies 12L, 12R can be raised upwards from the needle plate 7 by installing the trailer 29 on the rotating body, so that the installation operation of the cloth can be easily performed in the slightest It will not be obstructed by the rotating bodies 12L and 12R, and after the cloth W is installed, the rotating bodies 12L and 12R are lowered together with the cloth pressing body 5 so that the outer peripheral lower ends 121 and 12r contact the surface of the cloth W from directly above. The cloth W can be pressed vertically downward, so that no excessive component force is added to the cloth W to cause creases. In addition, springs 36L and 36R are provided at the downstream ends of the left and right rocking support members 31L and 31R in the sewing progress direction. The springs 12L and 12R use the mounting pins 30L and 30R as the fulcrum to compress the cloth toward the pressing direction. Rotational moments of the rocking support members 31L and 31R around the mounting pins (fulcrum points) 30L and 30R are given by the spring pressure of the springs 36L and 36R. Through the rotation moments, the lower peripheral ends 121 and 12r of the rotating bodies 12L and 12R can be indirectly transmitted. The ground elasticity is tightly pressed on the surface of the cloth W, and the rotating bodies 12L and 12R are elastically displaced, so that the thickness of the cloth W can be tracked quickly, and the desired purpose of uniform feed guidance around the cloth W can be reliably achieved. Further, in the present invention, it is preferable that a one-way rotary clutch is installed in the left and right pair of rotating bodies 12L, 12R or left rotating body 12L described in the first to third embodiments, which only allows feeding toward the cloth. Rotation of the action direction. In this case, when the sewing operator swings the hand-held cloth W with the needle drop portion 5a as a fulcrum for curve sewing or the like, even if the rotary body 12L, 12R, or 12l has a rotating force opposite to the cloth feed guide, The action can also restrict the reverse rotation of the rotating body. Therefore, regardless of how the cloth swings, the cloth can be reliably fed in the sewing direction. 18 This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) ----------- · Installation ------ 丨 丨 Order -------- -% (Please read the notes on the back before filling this page) 593824 κ_ ________ Β7 _____ V. Description of the invention () [Simplified description of the drawing] Figure 1 'shows the application of the cloth pressing device according to the first embodiment of the present invention. A perspective view of the vicinity of the needle drop of the wrist sewing machine. Fig. 2 'is an enlarged plan view showing a main part of the cloth pressing device of the first embodiment. Fig. 3 'is an enlarged front view of the main part of the cloth pressing device. Fig. 4 'is an enlarged left side view of the main part of the cloth pressing device. Fig. 5 'is an enlarged sectional view of the elastic tight pressure adjusting mechanism of the cloth pressing device. Fig. 6 'is a schematic plan view illustrating a state of a cloth pressing surface produced by the cloth pressing device. Fig. 7 'is a perspective view showing the vicinity of the needle drop portion of the feeding wrist type sewing machine to which the cloth pressing device according to the second embodiment of the present invention is applied. Fig. 8 'is an enlarged plan view showing a main part of the cloth pressing device according to the second embodiment. Fig. 9 'is an enlarged left side view of the main part of the cloth pressing device. Fig. 10 'is an enlarged plan view showing a main part of a cloth pressing device according to a third embodiment of the present invention. Fig. 11 is an enlarged left side view of a main part of the cloth pressing device according to the third embodiment. Fig. 12 'is an enlarged right side view of the main part of the cloth pressing device. [Symbol description] 5 The cloth press body 19 -----________ This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) --- I ------- Aw- ------ Order --------- (Please read the notes on the back before filling out this page) 593824 Α7 Β7 V. Description of the invention () 5a 8L, 8R 9
12L、12R 121 > 12r W Y 針落部(針落孔） 進給齒 壓布件 布進給引導用旋轉體 外周下端部 布 縫製進行方向 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐）12L, 12R 121 > 12r WY Needle drop section (needle drop hole) Feeding of the tooth pressing cloth cloth Feeding guide Rotating outer peripheral lower end cloth sewing direction (Please read the precautions on the back before filling this page) Paper size applies to China National Standard (CNS) A4 (210 X 297 mm)