200902787 九、發明說明： 【發明所屬之技術領域3 發明領域 本發明係有關於一種保持被縫製物，以於前後左右送 5 布之缝紉機之送布裝置。 【先前技術3 發明背景 習知，已知有如將紐扣縫裝於布之縫裝紐扣縫幼機 般，一面將鈕扣或布等被縫製物保持，一面對應於鈕扣孔， 10 於前後左右移動之縫紉機之送布裝置（例如參照專利文獻 1)。此送布裝置係於前端部設有保持鈕扣之鈕扣承接部之 可動體以基端可於左右方向旋動，同時，可於前後方向移 動之狀態支撐。藉可動體之前述移動，使保持於鈕扣承接 部之鈕扣前後左右移動，使針交互貫穿鈕扣孔，藉此，形 15 成略U字形或X字形之接縫，而將鈕扣縫合於布。 記載於專利文獻1之循環式縫紉機之上述送布裝置具 有對可動體施與左右方向之旋動運動之左右送布凸輪、對 可動體施與前後移動之前後送布凸輪，該等凸輪於縫紉機 驅動轴旋轉預定次數時，旋轉1周。 20 又，由於隨著接縫種類之多樣化，可動體之前後動作 亦多樣化，故前述送布凸輪設有複數種。使依所期之縫合 類型，從該等複數前後送布凸輪中選出之凸輪之凸輪部接 觸接觸構件，依該凸輪部之變位，使縫紉機之驅動可動體 於前後或左右移動。 200902787 記載於專利文獻1之前後送布凸輪之選擇切換機構如 第11圖所示，於可動體101設置以旋動軸102為中心旋動之 切換桿103，於該切換桿103設置塊體104。另一方面，於前 後進給凸輪10 5***設置於複數搖動臂10 6之端部之接觸體 5 (滾子）107，任一搖動臂1〇6皆設有沿切換桿1〇3之搖動所作 之塊體104之軌跡之圓弧狀引導部106A。 使用者於縫製結束後停止時，當塊體104卡合於複數搖 動臂106之引導部106A之任一者時，可動體101隨對應於所 卡合之引導部之前後送布凸輪溝而前後移動。欲使可動體 ίο 1〇1隨其他前後送布凸輪105前後移動時，而以手動操作切 換桿103時，塊體104從配置成同一圓孤狀之其中一引導部 106A沿另一引導部106A移動而卡合。 【專利文獻1】曰本專利公開公報平1〇_99571號 【發明内容3 15 發明揭示 發明欲解決之課題 在上述習知縫切機之送布裳置，可動體具有具備下降 至大約前方側之傾斜部之鉤，藉由此鉤而垂掛，形成為使 送布裝置全體被賦與朝前方之勢能的構造。結果，塊體位 20於其中-引導部與另-引導部間時，使塊體被賦與朝縫幼 機之前方側之勢能，而有不易使從其中一引導部平順地移 動至另一引導部之問題。 又，在配置於各圓孤狀引導部間之狀態，踩踏縫幼機 踏板，啟動縫幼機時，有於開始個別搖動之各圓弧狀引導 200902787 部夾持塊體，縫紉機卡住之虞，而有不易從此卡住狀態操 作切換桿，使塊體歸位至任一圓弧狀引導部而卡合之問題。 本發明之目的係提供一種防止縫紉機之卡住狀態，同 時，可使塊體平順地從一引導部移動至另一引導部之送布 5 裝置。 用以欲解決課題之手段 為解決上述課題，申請專利範圍第丨項之發明係一種縫 紉機之送布裝置，其具有於前端設有接布部（16),並且可左 右旋動且可前後移動之可動體（18);以可於上下方向旋動之 10狀態連結於前述可動體，且藉下降而將布夾於其與前述接 布部間之壓布部(3G7);分別於外周面形成凸輪部(3、5)之 第1及第2凸輪體(4、6、36);連結於前述可動體，於水平方 向搖動之切換臂（21);分別被軸支於直立設置在縫紉機架之 第1及第2軸構件⑴、35)，分別沿前述第1及第2凸輪體之凸 15輪°卩搖動之第1及第2搖動臂部(31a、32a);與前述第1及第2 搖動臂部之搖動連動’分別以前述第1及第2軸構件為中 心’於水平方向搖動之第丨及第2搖動體(31、32);設置於前 述第1及第2摇動體，形成以前述切換臂之搖動中心為中心 之圓弧以前端相對之狀態配置成相對之第1及第2圓狐 2〇狀引=部3、34);以可選擇地卡合於兩個圓弧狀引導部之 片^ $述切換臂，沿隨前述切換臂之搖動卡合之圓 孤r導。h動之塊體⑵)。該送布裝置藉由以前述塊體選 擇陡，卡°之則述第1或第2引導部之搖動，使前述可動體 移動而使失持於前述接布部與前述壓布部間之布於左右 200902787 =後至少1方向移動，其特徵在於：前述第！及第2圓弧狀 引V轉相對之各端部具有位於各圓狐狀引導部之半徑方 向外側，同時，朝另一側之引導部突出之突出部(33a、34a)， 且從前述第1及第2圓弧狀引導部至前述突出部之半徑方向 5外側緣部連續排列在同一周面上。 申⑼專利範圍第2項之發明係在申請專利範圍第】項記 載之發明巾，前述突出部之前端呈曲面形狀。 申請專利範圍第3項之發明係在申請專利範圍第1項或 第項。己载之發明中，前述第i及第2圓狐狀引導部之相對端 10部之半徑方向内側角部去角成曲面狀。 申請專利範圍第4項之發明係在申請專利範圍第3項記 載之冬明中，前述第1及第2圓弧狀引導部從前述各突出部 之半徑方向内側緣部至前述各圓弧狀引導部之相對端部之 半徑方向内側角部以凹狀之曲面連接。 15 申請專利範圍第5項之發明係在申請專利範圍第1項或 第2項記載之發明中，前述第丨及第2圓弧狀引導部於相對之 各前端附近之外側緣部具有凹部。 發明效果 根據申凊專利範圍第1項之發明，因突出部位於各圓弧 2〇狀引導部之半徑方向外側，故可防止塊體朝縫紉機前方側 之移動，而可平順地進行第丨及第2圓弧狀引導部間之塊體 之移動。又，由於從第1及第2圓弧狀引導部至各個突出部 之半徑方向外側緣部連續排列在同一周面上，故可使塊體 平順地從第1圓弧狀引導部移動至第2圓弧狀引導部或相反 200902787 地從第2圓弧狀引導部移動至第1圓弧狀引導部。 根據申請專利範圍第2項之發明，除了可獲得與申請專 利範圍第1項記載之發明相同之效果外，由於特別具有前端 呈曲面形狀之突出部，故當塊體抵接各突出部之前端附近 5 時，可在第1及第2圓弧狀引導部間更平順地引導塊體，使 其移動。 根據申請專利範圍第3項之發明，除了可獲得與申請專 利範圍第1項或第2項記載之發明相同之效果外，特別是因 第1及第2圓弧狀引導部之相對端部之半徑方向内側角部去 10 角成曲面狀，故即使塊體抵接第1及第2圓弧狀引導部之相 對端部之半徑戶向内側之端緣時，亦可平順地引導塊體， 使其移動至移動目標之圓弧狀引導部。 根據申請專利範圍第4項之發明，除了可獲得與申請專 利範圍第3項記載之發明相同之效果外，特別因在第1及第2 15 圓弧狀引導部從前述各突出部之半徑方向内側緣部至前述 各圓弧狀引導部之相對端部之半徑方向内側角部以凹狀曲 面連接，故可確保在各圓弧狀引導件與塊體間作為間隔之 空隙。藉此，即使於塊體配置於第1及第2圓弧狀引導部間 時，啟動縫紉機，仍可配合第1及第2搖動體之各搖動，使 20 塊體以與切換臂之連結部為中心而旋動。結果，可防止縫 幼機卡住。 根據申請專利範圍第5項之發明，除了可獲得與申請專 利範圍第1項或第2項記載之發明相同之效果外，特別是因 第1及第2圓弧狀引導部於相對之各前端附近之外側緣部具 200902787 有凹部，故可確保於各圓弧狀引導部之外側緣部與塊體之 抵接部作為間隔之空隙。藉此，即使塊體傾斜地抵接相各 圓弧狀引導部之前端附近之外側緣部時，可平順地引導塊 體。 5 【實雜》方式】 用以實施發明之最佳形態 以下’使用圖式，就用以實施本發明之最佳形態作說 明。惟’雖對以下所述之實施形態附加技術性適合實施本 發明之各種限定，但並非以以下之實施形態及圖示例限定 10 發明之範圍者。 如第1圖及第2圖所示，缝裝鈕扣縫紉機1301具有機床 部302、設置於機床部3〇2之後端部之基台2〇〇、直立設置於 基台200之直立體部3〇3、從直立體部3〇3上面以與機床部 302約略平行之狀態延伸至前方之臂部304。於臂部304之前 15端部設置以圖中未示之縫紉機馬達之驅動上下動之針棒 305 ’於針棒305之下端安裝針306。適用本發明之送布裝置 1設置於基台200至機床部302。以下，就送布裝置1具體說 明。 如第1圖〜第3圖及第6圖所示，送布裝置1具有可左右旋 20動且可前後移動之可動體18、設置於此可動體18之前端部 之接布部16、以可於上下方向旋動之狀態連結於可動體 18，且可藉下降而將布夾於其與接布部16間，作為壓布部 之釘鈕扣兼壓布腳307、於外周面形成用以使可動體18左右 旋動之凸輪溝（凸輪部）3之左右送布凸輪體4、於外周面形成 10 200902787 用以使可動體18於前後移動之凸輪溝（凸輪部）5，作為第1 凸輪體之前後迸布凸輪體6、於外周面形成以與第1凸輪體 不同之模式使可動體前後移動之凸輪溝37,作為第2凸輪體 之前後送布凸輪體36、以於基台200上面沿上下方向直立設 5 置’作為第1軸構件之固定軸為中心，卡合於凸輪溝5而旋 動’作為第1搖動體之第1搖動臂31、以於基台200上面沿上 下方向直立設置，作為第2軸構件之固定軸35為中心，卡合 於凸輪溝37而旋動，作為第2搖動體之第2搖動臂32、連結 於可動體18，於水平方向搖動，作為切換臂之前後送布切 10換臂21、旋動自如地設置於前後送布切換臂21，用以選擇 性地切換對可動體18施與動力之凸輪之塊體22。此外，凸 輪溝3、5亦可以一般之端面凸輪取代溝凸輪。 如第1圖〜第4圖所示，可動體18在送布裝置1之前後延 伸’於該可動體18之前後中間部連結釘紐扣壓布腳3〇7。釘 15紐扣壓布腳307係以其前端部抓持紐扣者，以可以與可動體 18之連結部為中心而上下旋動之狀態設置，其前端部以圖 中未示之彈簧平常於下方附勢。於此釘鈕扣壓布腳3〇7之上 部設置鉤308 ’該鉤308掛勾於頂推機構3〇9之鉤31〇。在缝 製中以外，藉以圖中未示之凸輪機構驅動之頂推機構3〇9 ’ 2〇平*釣31 〇上升，糟此，釘姐扣壓布腳3〇7之前端部對抗彈 簧之附勢力而上升。上述釣308具有在大約前方朝下之傾斜 部308a ’此傾斜部308a以鉤垂掛，上升之可動體18與連結 於此可動體18之各構件可朝向前方附勢。另—方面，使用 者踩踏圖中未示之操作踏板’開始縫製時，以頂推機構 11 200902787 309，使鉤310下降，同時，以彈簧使釘紐扣壓布腳307之前 端部下降。 如第1圖〜第4圖所示，於可動體18之前端部安裝板狀接 布部16。此接布部16配設置於針棒305之下方，機床部3〇2 5上。然後，在布載置於此接布部16上面之狀態下，釘钮扣 壓布腳307之前端部以彈簧於下方附勢時，釘鈕扣壓布腳 307之前端部壓接於接布1部16，將布夾持於兩者之間。 如第2圖〜第4圖所示，於可動體18之前後中間部形成於 前後方向呈長尺形之長孔17，於此長孔17***滑塊2〇a。滑 10塊20a可沿長孔17前後滑動，同時，以圖中未示之段螺絲樞 支於基台200。即’可動體18可以分段螺絲為中心旋動，同 時’以滑塊20a及長孔17前後移動。 如第3圖、第4圖、第6圖所示，於在可動體18之長孔17 之後方藉由旋動軸25，連結連桿24之左端部。此連桿24設 15置成可相對於可動體18以旋動軸25為中心旋動。另一方 面，連桿24之右端部藉由上下方向之軸27，連結於基台2〇〇 之上面’連桿24可相對於基台200，以軸27為中心而旋動。 然後，藉此連桿24，旋動軸25之軌道以軸27為中心，而限 制成前後方向之圓弧。 20 如第4圖、第6圖所示，於在旋動軸25後方之可動體18 之後端部形成於前後方向呈長尺形之長孔19。連桿2〇1重疊 設置於可動體18之後端部上，設置於此連桿2〇1前端部之上 下方向之軸61藉由滑塊***至長孔19，藉此，軸61可相對 於可動體18沿長孔19於前後方向移動。連桿2〇1之後端部可 12 200902787 環繞2方向之固以副旋動並安裝於基台細上面。 凸輪體4 〇 6圖、第7圖所示’於基台2()。下方配置凸輪轴认 36。 轴2於左右方向延伸，可環繞其Μ。此凸輪軸2 5依使用者所作之圖中未示之縫切機踏板之踩踏，於藉由圖 中未示之連桿機構，桿50之前端部於第i圖所示之箭號Α方 向（上方)旋動時，旋轉。即，藉設置於圖中未示之離合器機 構之連結軸以設置於桿50之前端部右側面之傾斜凸輪（省 略圖式），移動至右側，缝紉機馬達驅動之滑輪51及凸輪軸 10 2呈連結狀態，而使凸輪軸2旋轉。在此凸輪軸2，圓盤狀前 後送布凸輪體6、左右送布凸輪體4及前後送布凸輪體36固 定成相互平行，該等凸輪體4、6、36與凸輪軸2形成一體而 旋轉。此外，在第6圖中，為方便觀看圖式，而省略基台200 之圖式。 15 如第6圖所示，於前後送布凸輪體6之外周面形成波形 前後送布凸輪溝5，於左右送布凸輪體4之周面形成波形左 右送布凸輪溝3，於前後送布凸輪體％之周面形成波形前後 送布凸輪溝37。該等凸輪溝3、5、37形成為環繞凸輪軸2一 周’各凸輪溝3、5、37之形狀各不相同。 20 如第6圖所示，於左右送布凸輪體4之上方设置於刖後 呈長尺狀之左右送布用搖動臂9。左右送布用搖動臂9之後 端部可環繞上下方向之固定軸8旋轉，並連結於基台200之 上面。 於左右送布用搖動臂9之前端部下面安裝滾子1〇，此 滾子10嵌合於左右送布凸輪溝3。藉此’左右送布用搖動臂 13 200902787 9於酼著左右送布凸輪體4之旋轉’滾子10沿左右送布凸輪 溝3之波形，左右移動時，以固定軸8為中心而旋動。如第* W、第5®所示’於左右送布用搖動臂9之上面凸設以軸61 為中心之圓弧狀引導部66。 5 如第4圖、第6圖所示，於前後送布凸輪體6之上方設置 平面觀看呈L字形之作為第1搖動體之第1搖動臂31，於前後 送布凸輪體36之上方’在左右方向相對設置平面觀看呈[ 子形之作為第2搖動體之第2搖動臂32。 該等第1搖動臂31及第2搖動臂32具有第1搖動臂部31a 1〇及第2搖動臂部32a與作為第1圓弧狀引導部之第丨引導部33 及作為第2圓弧狀引導部之第2引導部34。第丨搖動臂部3U 及第2搖動臂部32a分別被支撐於在上下方向直立設置於基 台（機架)200之作為第1軸構件之固定軸11及作為第2軸構件 之固定軸35,同時，沿前後送布凸輪體6及前後送布凸輪體 15 36之凸輪溝5、37搖動。作為第1圓弧狀引導部之第1引導部 33及作為第2圓弧狀引導部之第2引導部34形成以前後送布 切換臂21之搖動中心之旋動軸25為中心之圓弧狀，與配置 成前端相對之第1搖動臂部31a及第2搖動臂部323之搖動連 動，分別以固定軸11、35為中心，於水平方向搖動。 *° 第1搖動臂31之L字彎曲部可環繞上下方向之固定軸n 方疋轉，並連結於基台200之上面，從彎曲部至一端部於前後 方向延伸，從彎曲部至另一端部於左右方向延伸（參照第6 圖）。於此第1搖動臂31之一端部之下面安裝作為第〗卡合構 件之滾子14，此滾子14嵌合於前後送布凸輪溝5。藉此，第 14 200902787 1搖動臂31於隨著前後送布凸輪體6之旋轉，滚子14沿前後 送布凸輪溝5之波形於左右移動時，以固定軸11為中心而旋 動。 第2搖動臂31之L字彎曲部可環繞與固定軸丨丨平行地於 5上下方向直立設置之固定軸35旋轉，並連結於基台2〇〇之上 面，從彎曲部至一端部於前後方向延伸，從彎曲部至另一 端部於左右方向延伸。在此’固定軸8、11、35配置成相互 平行。於此第2搖動臂32之一端部之下面安裝作為第2卡合 構件之滾子38，此滾子38嵌合於前後送布凸輪溝37。藉此， 10第2搖動臂32於隨著前後進給凸輪體36之旋轉，滾子38沿前 後進給凸輪溝37之波形於左右移動時，以固定軸35為中心 而旋動。此外，在第5圖中，為方便觀看圖式，省略第^备 動臂31之圖式。 在此，依第8圖、第9圖，就本實施形態之第丨引導部33 15 及第2引導部34詳細說明。 第1引導部33凸設於第丨搖動臂31之彎曲部至另一端部 之上面，第2引導部34凸設於第2搖動臂32之彎曲部至另一 端部之上面。第1引導部33位於向右遠離第2引導部34之位 置，第1引導部33之左端與第2引導部34之右端間形成間隙。 2〇 在本實施开九癌之第1及第2引導部33、34，於相對之各 前端部設有位於各引導部33、34之圓弧之半徑方向外側， 朝另一側之引導部突出之突出部33a、34a。 如第6圖〜第9圖所示，突出部333、3如之各前端朝另一 側之引導部呈在平面觀看為凸狀之曲面形狀。從第i及第2 15 200902787 引導部33、34至各突出部33a、34a之半徑方向外側緣部連 續排列在同一周面上。第1及第2引導部33、34具有在相對 之端部之半控方向内側角部去角成曲面狀之去角部33b、 34b。 5 各圓弧狀引導部33、34之相對端部從各突出部33a、34 之半徑方向之内側緣部至圓弧狀引導部33、34之相對端部 之半徑方向内側角部以呈平面觀看為於各引導部33、34側 形成凹狀之凹狀曲面部33c、34c連接。進一步，於相對之 第1及第2引導部33、34之各前端附近之外側緣部設有以平 10 面觀看凹陷成凹面狀之凹部33d、34d。另，為使第1及第2 引導部33、34間之22之移動容易，該等凹部33d ' 34d宜以 與各去角部33b、34b相同之曲率半徑形成。 接著’就選擇性地切換第1搖動臂31、左右送布用搖動 臂9、第2搖動臂32之旋動運動，傳達至可動體18之機構作 15 說明。 如第3圖〜第5圖所示，連桿201之前端部連結於軸61。 於左右送布臂62之右端部設置塊體64，塊體64可與引導部 66卡合。 如第3圖、第4圖、第6圖所示，於可動體18上配設於前 20 後方向延伸，作用為本發明之切換臂之前後送布切換臂 21。前後送布切換臂21連結於以其前端部與固定軸11平行 地之狀態於上下方向直立設置之旋動軸25，而可環繞此旋 動軸25旋動。於前後切換臂21之後端部設置具有與各引導 部33、34滑接之内外滑接面22e、22f(參照第9圖、第10圖） 16 200902787 之塊體22，藉以旋動軸25為中心之前後送布切換臂η之旋 動，塊體22描繪圓弧狀之移動軌跡而移動。 然後，塊體22可選擇性地卡合於沿此塊體22之移動軌 跡形成圓弧狀之第1引導部33之前後兩側面33e、33f及第2 引導邓34之岫後兩側面34e、34f。即，塊體22之下面具有 以旋動軸25為中心之圓弧狀溝，以可與第丨引導部33或第2 引導434滑接之狀態卡合，沿半徑方向之縱截面呈於下方 側開放之略口字形之形狀。此塊體22係藉由上下方向之軸 旋動自如地與前後送布切換臂21連結。塊體22藉對可動體 10 18之前後送布切換臂21之搖動，與第1及第2引導部33、34 之半杈方向内兩端緣滑接而移動，而可選擇性地卡合於第1 及第2引導部33、34者，在塊體22卡合於第1引導部33之狀 態下’塊體22不卡合於第2引導部34，在塊體22卡合於第2 引導部34之狀態下，塊體22不卡合於第1引導部33。 15 切換桿2 9以於後方延伸之狀態連結於前後送布切換臂 21 ’使用者操作切換桿29之後端部，前後送布切換臂21以 旋動轴25為中心旋動，藉此旋動，選擇塊體22卡合於第1引 導部33或第2引導部34，藉由塊體22，可動體18移動，將布 夾持於接布部16與釘鈕扣夾壓布腳307後，於前後方向送 20 布。 於前後送布凸輪體6及前後送布凸輪體36之各凸輪溝5 及凸輪溝37分別設置原點部（圖中未示），該原點部係藉切換 桿29之操作’使兩引導部33及引導部34沿切換桿29之軌跡 排列，以使塊體22在兩引導部33及引導部34間移動時，兩 17 200902787 引導部33及引導部34之位置與塊體22移動之軌跡一致。 於縫裝鈕扣縫紉機301之投入電源時及縫製結束後停 止時，凸輪軸2構造成使分別卡合於兩凸輪體6及凸輪體^ 之滾子Μ及滾子38停止於與各凸輪體之前述原點部礙合之 5原點位置。藉上述結構，於電源投入時及縫製結束時，亦 即在滾子14及滾子38以分職合於前後送布凸輪體6及前 後送布凸輪體36之原點部之狀態下，當使用者操作切換桿 29時，藉前述前後送布切換臂21之旋轉(旋動），從塊體22 卡合於第1引導部33之狀態切換成塊體22卡合於第2引導部 1〇 34狀態或相反之㈣。另，在第6时，為方便觀看圖式， 省略切換桿29之圖式。 在塊體22卡合於第1引導部33之狀態，塊體22可沿第2 引導部34滑動，藉以停止器等限制以旋動轴25為中心之切 換桿29之旋動，而鎖固塊體22對第i引導部幻之卡合位置。 15同樣地，在塊體22卡合於第2引導部34之狀態，塊體22可沿 第1引導部33滑動，藉以停止器等限制以旋動軸25為中心之 切換桿29之旋動，而鎖固塊體22對第2引導部34之卡合位 置。 ° 如此，送布裝置1藉以塊體22之移動選擇之第丨及第] 2〇引導部33、34之搖動，使可動體18移動，而使夹持於接布 部16與釘鈕扣壓布腳307間之布前後移動。 接著，就送布裝置1之動作及使用方法作說明。 首先，當左右送布凸輪體4旋轉時，藉左右送布凸輪溝 3 ’左右送布用搖動臂9以固定軸為中心左右旋動，此旋動 18 200902787 經由左右送布臂62，傳達至連桿201，進一步，連桿2〇1 前端部之動作藉由與長孔19卡合之滑塊，傳達至可動體 18，可動體18以滑塊20a為中心、，左右旋動。因此，可動體 18之前端部於左右振動，將夾持於接布部16與釘鈕扣夹壓 布腳307之布於左右送布，同時，被抓持於純扣壓布腳間 307之Θ端部之紐扣於左右進給。 接著，使用者操作切換桿29，使塊體22卡合於第丨引導 部33。在此狀態，錢送布凸㈣6旋轉時，射後送布凸 輪溝5，從第1搖動臂31之彎曲部至左端部以固定轴η為中 心，前後旋動’藉由前後送布丨職臂2卜可動㈣前後移 動。因此，將夾持於接布部16與釘帅壓布腳斯之布於前 後送布，㈣，被抓持於釘⑽㉖布聊7之前卿之紐扣 於前後進給。 10 另方面使用者操作切換桿Μ，在使塊體η卡合於 15第2引導部34之狀態下’前後送布凸輪體36旋轉時，藉前後 送布凸輪溝37,從第2搖動臂32之彎曲部至右端部以固定轴 35為中心，前後旋動，藉由前後送布切換臂2卜可動體18 前後移動。因此，將夹持於接布部16與釘鈕扣兼壓布腳307 之布於ΐη時’被抓持於釘叙扣壓布腳挪之前端 20 部之鈕扣於前後進給。 如此’紐扣及布之前後進給有塊體22卡合於第1引導部 33及塊體22卡合於第2料部34之2種赋。另，變更沿w 引導部33之塊體22之位置或變更沿第2引導部34之塊體22 之位置，可變更前後送布之振幅。 19 200902787 由於凸輪體4、6、36以凸輪軸2形成—體而旋轉，故电 合以上之前後送布與左右送布，配合知扣及布之進給，斜 306上下動’將紐扣以3字形或χ字形之接縫縫合於布。此 外:前後動之周期、左右動之周期、前後動及左右動之時 5間係根據凸輪溝3、5、37之形狀。 又，使用者操作切換桿29時，針306停止，同時，凸輪 軸2亦停止於上述原點位置。為使布從接布部丨6退出，以圖 中未示之凸輪機構驅動之頂推機構3〇9上升之鉤31〇與鉤 308之傾斜部3〇8a卡合，釘鈕扣壓布腳1307之前端部上升。 1〇藉鉤310作用於傾斜部3〇8a，鈕扣夾持兼壓布件3〇7之前端 部上升時，往前方之載重作用於可動體18，此載重藉由塊 體22，由第1引導部33或第2引導部34之前後側面部33e、33f 及34e、34f所承接’故可動體18不致於前方移動。 然而，作用於可動體18之往前方之載重作用於塊體 15 22。在此狀態，當使用者要將應變更接縫形狀之切換桿29 操作從第1引導部33側旋動至第2引導部34側時，前後送布 切換臂21環繞旋動軸25旋動，塊體22脫離第1引導部33，移 動至第2引導部34。此時，承接作用於可動體18之往前方之 載重，同時，因與第1引導部33之卡合而限制動作之塊體22 20 之第2引導部34側與第1引導部33之外側緣部暫時脫離，故 第8圖所示之箭號R方向之旋轉力矩作用，於順時鐘方向旋 轉。然而，在本發明中，於第1引導部33及第2引導部34兩 引導部之各外側緣部構造成於相對之前端部設置從另_側 突出之突出部33a、34a，塊體22從一引導部移動至另—引 20 200902787 導部時，脫離各？丨導部之外 卜側緣。卩之距離大幅一 減低作用於塊體22之上诚祐絲上 β 轉力矩引起之塊體22之旋轉 部33、34移動至另一引 置，可使塊體22平順地從任— 導部33、34 ;縫裝姊_機機3社電源投入時及 縫製結束騎止時，凸輪轴2構造成各引導部33、34停止於 位於以旋轉轴25為中心之圓弧上之原點位置，以使塊體a 可從其中―_33、34_至另1糊、34。然而， 10 使凸輪軸2每次正確地位於上述原點位置並非易事，無法避 免產生些微之偏差。因此，各料部33、34於電源投入時 及縫製結束而停止時’以相對於以旋轉軸h為中心之圓弧 =微之偏移之狀態下停止。此時，與必須減少從可動 體^承接之重力引起之22之旋轉量之動作相反，塊體與 疑轉自由度高者較有利。 15 麟本實施形態之送布裝置卜即使在各搖動臂3卜32 稍微偏離之狀態下（參照第9圖），亦可使塊體_動至任_ 引導部33、34。即，在本實施形態中，因於各引導部33、 34之内側緣部具有各料部33、34相對之端部，故可輕易 移動通過去角部33b、34b、凹狀曲面部33c、34c及凹部现、 20 34d。 在此，依第9圖、第10圖，更詳細地說明設置於各引導 部33、34之去角部3313、地、凹狀曲面部说、地及凹部 33d、撕之各部位之作用。此外，在此，如第$圖所示，以 第1引導部33較第2引導部34位於前方時，使塊肋如箭如 21 200902787 所示，從第2引導部34移動至第1引導部33之情形為例來說 明。 首先’如第9圖所示，當使塊體22於箭號S方向移動時’ 塊體22之内側滑接面22e之右側端部P1抵接第1引導部33之 5 凹狀曲面部33c，對塊體22賦與箭號G1方向之旋轉力，使塊 體22於箭號G1方向旋轉。當塊體22—面於箭號G1方向旋 轉，一面於箭號S方向移動時，如第10圖所示，塊體22之内 側滑接面22e之左侧端部P2沿第2引導部34之去角部34b ’朝 突出部34a移動，同時，塊體22之外側滑接面22f之右側端 10 部P3卡合於第1引導部33之凹部33d。在此，由於凹部33d 設定成增加塊體22在G方向之旋轉之自由度，故即使第1引 導部33相對於第2引導部34大幅偏離至前方，亦可使塊體22 易移動。 當塊體22於箭號S方向移動時，卡合於第1引導部33之 15 凹部3 3 d之塊體22之外側滑接面22f之右側端部P3從凹部 33d脫出，同時，塊體22之内側滑接面22e之外側端部P1為 第1引導部33之去角部33b所引導，塊體22之滑接面22e、22f 一面於箭號G2方向旋轉，一面卡合於第1引導部33之兩側 面。同樣地，在第2引導部34較第1引導部33位於前方側之 20 狀態下，亦可使塊體22從第1引導部33移動至第2引導部34 側0 如以上所述，各去角部33b、34b、凹狀曲面部33c、34c 及凹部33d、34d形成於22在第1引導部33與第2引導部間移 動時，可使塊體22以較大之角度旋轉，故塊體22可更平順 22 200902787 地在各引導部33、34間移動。 又，藉設置上述各引導部33、34之突出部33a、34a、 各去角部33b、34b、凹狀曲面部33c、34c及凹部33d、34d， 各引導部33、34之前端形成較塊體22之内外滑接面22e、22f 5 狹窄之形狀，故當塊體22配置於兩引導部33、34間時，即 使踩踏操作踏板，凸輪軸2旋轉，各引導部33、34之前端仍 可在塊體22之内外側滑接面22e、22f間搖動，即使凸輪軸2 旋轉，亦可防止縫紉機301之破損或卡住。 如以上所說明，根據本實施形態之送布裝置1，藉各突 10 出部33a、34a設置於各引導部33、34之半徑方向外側，以 前後送布切換臂21之搖動，使塊體22從第1引導部33移動至 第2引導部34或相反地移動時，即使以頂推機構3〇9往前方 之載重作用於可動體18，仍可阻止塊體22之旋轉，故可防 止各引導部33、34間之塊體22往前方之移動、亦即偏離， 15故可使塊體22沿引導部33、34平順地移動。 根據實施形態之送布裝置1，由於設置各去角部33b、 34b、凹狀曲面部33c、34c及凹部33d、34d，故塊體22可更 平順地在各引導部33、34間移動。 藉設置上述各引導部33、34之突出部33a、34a、各部 20 33b、34b、凹狀曲面部33c、34c及凹部33d、34d，各引導 部33、34之前端形成較22之内外側滑接面22e、22f狹窄之 形狀，故當塊體22配置於兩引導部33、34間時，即使踩踏 操作踏板’凸輪軸2旋轉’各引導部33、34之前端仍可在22 之内外側滑接面22e、22f間榣動，即使凸輪軸2旋轉，亦可 23 200902787 防止縫紉機301之破損或卡住。 即，塊體22配置於第1及第2引導部33、34間時，啟動 縫紉機時，配合第1及第2搖動臂31、32，塊體22可以與切 換臂21之連結轴為中心來旋動，故可防止縫紉機301之破損 5 或卡住狀態。 此外，本發明不限於上述實施形態，只要在不脫離本 發明旨趣之範圍下，亦可進行各種改良及設計之變更。 【圖式簡單說明3 第1圖係縫紉機301之侧面圖。 10 第2圖係縫紉機301之立體圖。 第3圖係設置於縫紉機301之送布裝置1之立體圖。 第4圖係從與第3圖不同之角度顯示之送布裝置1之立 體圖。 第5圖係從斜上顯示送布裝置1之後部之概略立體圖。 15 第6圖係送布裝置1之後部之概概上面圖。 第7圖係從斜上顯示送布裝置1之後部之概略立體圖。 第8圖係顯示引導部33、34之形狀之概略上面圖。 第9圖係顯示縫紉機啟動時之引導部33、34及塊體22 之概略說明圖。 20 第10圖係顯示縫紉機啟動時之引導部33、34及塊體22 之概略說明圖。 第11圖係顯示習知縫紉機之前後送布凸輪之選擇切換 機構之概略立體圖。 24 200902787 【主要元件符號說明】 1.. .送布裝置 2.. .凸輪轴 3.. .凸輪溝(凸輪部） 4.··左右送布凸輪體（第1凸輪 體） 5.. .凸輪溝(凸輪部） 6···前後送布凸輪體(第1凸輪） 8…固定轴 9.. .左右送布用搖動臂 11.. .固定軸 14.. .滾子 16.. .接布部 17…長孔 18.. .可動體 19.. .長孔 20a...滑塊 21·.·前後送布切換臂(切換臂） 22.. .塊體 22e…内側滑接面 22f...外側滑接面 24.. .連桿 25.. .旋動軸 27.. ·軸 29.. .切換桿 31·.·第1搖動臂(第1搖動體） 31a...第1搖動臂部 32··.第2搖動臂(第2搖動體） 32a...第2搖動臂部 33.. .第1引導部（第1圓弧狀引 導部） 33a...突出部 33b...去角部 33c...凹狀曲面部 33d...凹部 33e...前側面 33f...後側面 34.. .第2引導部（第2圓弧狀引 導部） 34a...突出部 34b...去角部 34c...凹狀曲面部 34d...凹部 34e...前側面 34f...後側面 35.. .固定軸 36.. .前後送布凸輪體(第2凸輪 體） 37.. .前後送布凸輪溝 25 200902787 38.. .滾子 50· •.桿 51.. .滑輪 61. _ ·轴 62…左右送布臂 64.. .塊體 66.. .引導部 101.. .可動體 102…旋動轴 103…切換桿 104.. .塊體 105.. .前後送布凸輪 106.. .搖動臂 106Α...引導部 200··.基台(機架） 201.. .連桿 203.. .固定軸 301."缝裝鈕扣縫紉機 302.. .機床部 303…直立體部 304.. .臂部 305.. .針棒 306".針 307.. .釘鈕扣壓布腳(壓布部) 308.. .釣 308a...傾斜部 309.. .頂推機構 310··.鉤 26200902787 IX. Description of the invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a method of holding a sewn object, A feeding device for a sewing machine that delivers 5 cloths before, after, and after. [Prior Art 3 Background] Conventionally, It is known that the button is sewn to the sewing machine of the button sewing machine. Keep the buttons, cloth, etc., sewn, One side corresponds to the buttonhole, 10 A feeding device for a sewing machine that moves forward, backward, left, and right (see, for example, Patent Document 1). The feeding device is a movable body having a button receiving portion for holding a button at the front end portion, and the base end is rotatable in the left and right direction. Simultaneously, It can be supported in the state of moving in the front and rear direction. By the aforementioned movement of the movable body, Move the button held at the button receiving portion back and forth, left and right, Make the needles interact through the buttonholes, With this, Shape 15 into a U-shaped or X-shaped seam, The button is stitched to the cloth. The feed device of the recirculating sewing machine disclosed in Patent Document 1 has a left and right feed cam that applies a swiveling motion in the left and right direction to the movable body. Applying the cam to the movable body before and after moving forward and backward, When the cams are rotated by the sewing machine drive shaft a predetermined number of times, Rotate for 1 week. 20 Again, Due to the variety of seams, The movements of the movable body are also diverse. Therefore, the feed cam is provided with a plurality of types. Depending on the type of suture, The cam portion of the cam selected from the plurality of feed cams is contacted with the contact member, According to the displacement of the cam portion, Move the sewing machine to move the front and rear or left and right. 200902787 The selection switching mechanism of the feed cam before and after Patent Document 1 is as shown in Fig. 11, The movable body 101 is provided with a switching lever 103 that is rotated around the rotary shaft 102, The block 104 is provided to the switching lever 103. on the other hand, The front and rear feed cams 10 5 are inserted into the contact body 5 (roller) 107 provided at the end of the plurality of rocking arms 106, Any of the rocking arms 1〇6 is provided with an arcuate guide portion 106A which is a track of the block 104 which is swung by the switching lever 1〇3. When the user stops after the sewing is finished, When the block 104 is engaged with any of the guide portions 106A of the plurality of rocker arms 106, The movable body 101 moves forward and backward in accordance with the front and rear feed cam grooves corresponding to the engaged guide portion. If the movable body ίο 1〇1 is moved back and forth with the other front and rear feed cams 105, When the lever 103 is manually operated, The block body 104 is engaged with one of the guide portions 106A arranged in the same circular shape to move along the other guide portion 106A. [Patent Document 1] Japanese Patent Laid-Open Publication No. Hei No. Hei No. Hei 99 No. 99571 [Disclosed to the Invention] The object of the present invention is to solve the problem of the above-mentioned conventional slitting machine. The movable body has a hook having an inclined portion that is lowered to about the front side. Hanging by this hook, It is formed such that the entire feeding device is given a potential energy toward the front. result, When the block position 20 is between the guide portion and the other guide portion, The block is given the potential energy on the side before the slit machine, There is a problem that it is difficult to smoothly move from one of the guides to the other. also, In a state of being disposed between the respective circular guides, Step on the sewing machine pedal, When starting the slitting machine, There are various arc-shaped guides that start to shake individually. 200902787 Holds the block, After the sewing machine is stuck, And it is not easy to operate the switching lever from this stuck state, The problem of snapping the block to any arcuate guide. The object of the present invention is to provide a state in which the sewing machine is prevented from being stuck, Simultaneously, The block can be smoothly moved from one guide to the feed 5 of the other guide. Means to solve the problem To solve the above problems, The invention of claim 3 is a feeding device for a sewing machine, It has a cloth receiving portion (16) at the front end. And a movable body (18) which can be rotated left and right and can be moved back and forth; The movable body is coupled to the movable body in a state of being rotatable in the vertical direction. And the cloth is clamped between the cloth and the cloth portion (3G7); Forming a cam portion on the outer peripheral surface respectively (3, 5) The first and second cam bodies (4, 6, 36); Connected to the aforementioned movable body, a switching arm (21) that is rocked in a horizontal direction; The first and second shaft members (1) which are respectively erected on the sewing frame by the shaft, 35), The first and second rocking arm portions (31a, respectively, which are rocked along the convex 15 rounds of the first and second cam bodies 32a); The second and second oscillating bodies that are swayed in the horizontal direction by the first and second shaft members are respectively interlocked with the shaking of the first and second rocking arm portions (31, respectively). 32); Set in the first and second shaking bodies described above, Forming an arc having a center centered on the rocking center of the switching arm so as to be opposite to the first and second round foxes in a state in which the front ends are opposed to each other; 34); The switch arm is selectively engaged with the two arc-shaped guide portions. It is guided along the circle of the above-mentioned switching arm. h moving block (2)). The feed device is selected by the block, The card is described as the shaking of the first or second guiding portion, Moving the movable body to cause the cloth that is lost between the cloth receiving portion and the pressing portion to move in at least one direction after the left and right 200902787 = It is characterized by: The aforementioned! And each end portion of the second arc-shaped V-turn is located outside the radial direction of each of the circular fox-shaped guide portions. Simultaneously, a protruding portion protruding toward the guiding portion on the other side (33a, 34a), Further, the outer edge portions in the radial direction 5 of the first and second arcuate guide portions to the protruding portion are continuously arranged on the same circumferential surface. The invention of claim 2 of the scope of claim (9) is the invention towel recorded in the scope of the patent application. The front end of the aforementioned protruding portion has a curved shape. The invention of claim 3 is in the first or second paragraph of the patent application. In the invention, The radially inner corner portions of the opposite end portions 10 of the i-th and second circular fox-shaped guide portions are chamfered in a curved shape. The invention of claim 4 is in the winter of the third paragraph of the patent application scope. The first and second arc-shaped guide portions are connected in a concave curved surface from the radially inner side edge portion of each of the protruding portions to the radially inner corner portion of the opposite end portions of the arcuate guide portions. 15 The invention of claim 5 is in the invention described in claim 1 or 2, The second and second arc-shaped guide portions have recesses at the outer edge portions near the respective front ends. According to the invention of claim 1 of the patent application scope, Since the protruding portion is located on the outer side in the radial direction of each of the arcuate guide portions, Therefore, it is possible to prevent the block from moving toward the front side of the sewing machine. The movement of the block between the second and second arcuate guides can be smoothly performed. also, Since the first and second arc-shaped guide portions are arranged on the same circumferential surface in the radial direction outer edge portion of each of the protruding portions, Therefore, the block can be moved smoothly from the first arc-shaped guide portion to the second arc-shaped guide portion or vice versa. From the second arc-shaped guide portion to the first arc-shaped guide portion. According to the invention of claim 2, In addition to the same effects as the invention described in item 1 of the patent application scope, Since it has a protruding portion having a curved shape at the front end, Therefore, when the block abuts the vicinity of the front end of each of the protrusions 5 The block body can be guided more smoothly between the first and second arc-shaped guide portions. Move it. According to the invention of claim 3, In addition to the same effects as the invention described in item 1 or 2 of the patent application scope, In particular, the radial inner side corner portions of the opposite end portions of the first and second arc-shaped guide portions are curved at a 10 angle. Therefore, even if the block abuts against the edge of the opposite end of the first and second arcuate guide portions toward the inner side, It can also guide the block smoothly. Move it to the arcuate guide of the moving target. According to the invention of claim 4, In addition to the same effects as the invention described in item 3 of the patent application scope, In particular, the first and second 15 arc-shaped guide portions are connected by a concave curved surface from the radially inner side edge portion of each of the protruding portions to the radially inner corner portion of the opposite end portions of the arcuate guide portions. Therefore, it is ensured that a gap is formed between each of the arc-shaped guides and the block. With this, Even when the block is placed between the first and second arcuate guides, Start the sewing machine, Still can match the shaking of the first and second shaking bodies, The 20 blocks are rotated about the connection portion with the switching arm. result, It can prevent the sewing machine from getting stuck. According to the invention of claim 5, In addition to the same effects as the invention described in item 1 or 2 of the patent application scope, In particular, the first and second arc-shaped guide portions have recesses in the side edges of the vicinity of the respective front ends. Therefore, it is possible to secure a gap between the side edge portions of the arc-shaped guide portions and the abutting portions of the block as spacers. With this, Even if the block abuts obliquely against the outer edge portion near the front end of each of the arcuate guide portions, The block can be smoothly guided. 5 [Complicated method] The best form for implementing the invention The best mode for carrying out the invention will be described. However, the embodiments described below are technically suitable for implementing various limitations of the present invention. However, the scope of the invention is not limited to the following embodiments and examples. As shown in Figures 1 and 2, The sewing button sewing machine 1301 has a machine tool portion 302, a base 2 provided at the end of the machine unit 3〇2, It is erected on the straight portion 3〇3 of the base 200, The upper arm portion 304 extends from the upper side of the straight portion 3〇3 in a state approximately parallel to the machine tool portion 302. Before the arm portion 304, a needle 305' is attached to the lower end of the needle bar 305 by a needle bar 305' which is driven up and down by a sewing machine motor (not shown). The feed device 1 to which the present invention is applied is provided from the base 200 to the machine unit 302. the following, The feed device 1 will be specifically described. As shown in Figures 1 to 3 and Figure 6, The feeding device 1 has a movable body 18 that is rotatable left and right and movable forward and backward. a cloth receiving portion 16 disposed at an end portion of the movable body 18, It is coupled to the movable body 18 in a state of being rotatable in the up and down direction. And the cloth can be clamped between the cloth and the cloth portion 16 by the lowering. As the button portion of the pressing portion, the pressing button 307, a left and right feed cam body 4 for forming a cam groove (cam portion) 3 for rotating the movable body 18 to the right and left sides, Formed on the outer peripheral surface 10 200902787 A cam groove (cam portion) 5 for moving the movable body 18 forward and backward, As the first cam body, the front cam body 6 is a cam groove 37 for moving the movable body back and forth in a mode different from that of the first cam body is formed on the outer peripheral surface, As the second cam body, the front and rear feed cam bodies 36, The upper surface of the base 200 is vertically disposed 5 in the up and down direction as a fixed axis of the first shaft member, Engaged in the cam groove 5 to rotate the first rocking arm 31 as the first rocking body, So that the top of the base 200 is placed upright in the up and down direction, Centering on the fixed shaft 35 of the second shaft member, Engaged in the cam groove 37 and rotated, The second rocking arm 32 as the second rocking body, Linked to the movable body 18, Shake in the horizontal direction, As the switching arm before and after feeding, the cutting arm 10, the arm 21, Rotatingly disposed on the front and rear feed switching arms 21, A block 22 for selectively switching the cam that applies power to the movable body 18. In addition, Convex groove 3, 5 It is also possible to replace the groove cam with a general end face cam. As shown in Figures 1 to 4, The movable body 18 is extended before the feeding device 1 and is attached to the intermediate portion of the movable body 18 before and after the movable body 18. Nail 15 button presser foot 307 is a button that holds the button at the front end. It is provided in a state of being rotatable up and down around the connection portion of the movable body 18, The front end portion is usually attached to the lower side with a spring not shown. A hook 308 ′ is attached to the top of the button presser foot 3〇7, and the hook 308 is hooked to the hook 31〇 of the push mechanism 3〇9. Outside of sewing, By means of a push mechanism 3〇9 ’ 2, which is driven by a cam mechanism not shown in the figure, Worse, Nail sister buckled the foot of the foot 3〇7 before the end of the anti-spring attached to the force and rose. The above-mentioned fishing 308 has an inclined portion 308a' which is downwardly directed downward, and the inclined portion 308a is hooked by the hook. The rising movable body 18 and the members connected to the movable body 18 can be attached to the front side. Another aspect, When the user starts the sewing by stepping on the operation pedal not shown in the figure, Pushing mechanism 11 200902787 309, Lowering the hook 310, Simultaneously, The spring ends the lower end of the button 307. As shown in Figures 1 to 4, A plate-like attachment portion 16 is attached to the front end of the movable body 18. The cloth receiving portion 16 is disposed below the needle bar 305. The machine part is 3〇2 5 . then, In a state where the cloth is placed on the upper portion of the cloth receiving portion 16, Nail button When the front end of the presser foot 307 is spring-loaded underneath, The front end of the button presser foot 307 is crimped to the first part 16 of the cloth. Hold the cloth between the two. As shown in Figure 2 to Figure 4, The front portion of the movable body 18 is formed with a long hole 17 having a long shape in the front-rear direction. The long hole 17 is inserted into the slider 2〇a. Sliding 10 pieces 20a can slide back and forth along the long hole 17 Simultaneously, The base 200 is pivoted with a segment screw not shown. That is, the movable body 18 can be rotated around the segmented screw. At the same time, the slider 20a and the long hole 17 are moved back and forth. As shown in Figure 3, Figure 4, As shown in Figure 6, By rotating the shaft 25 after the long hole 17 of the movable body 18, The left end of the link 24 is connected. The link 24 is disposed 15 to be rotatable about the rotatable shaft 25 with respect to the movable body 18. on the other hand, The right end of the connecting rod 24 is supported by the shaft 27 in the up and down direction. Connected to the top of the base 2', the link 24 can be opposite to the base 200, The shaft 27 is rotated about the center. then, With the link 24, The track of the rotating shaft 25 is centered on the shaft 27, It is limited to the arc of the front and rear direction. 20 as shown in Figure 4, As shown in Figure 6, An end portion of the movable body 18 behind the rotary shaft 25 is formed with a long hole 19 having a long shape in the front-rear direction. The connecting rods 2〇1 are overlapped and disposed on the rear end of the movable body 18, The shaft 61 disposed above and below the front end portion of the link 2〇1 is inserted into the long hole 19 by the slider, With this, The shaft 61 is movable in the front-rear direction with respect to the movable body 18 along the long hole 19. The end of the connecting rod 2〇1 can be 12 200902787. The two-way fixing is sub-rotated and mounted on the base. Cam body 4 〇 6 figure, Figure 7 shows 'on the base 2 (). Configure the camshaft 36 below. The shaft 2 extends in the left and right direction. It can wrap around it. The camshaft 25 is pedaled according to a sewing machine pedal not shown in the figure. By means of a linkage mechanism not shown in the figure, When the front end of the rod 50 is rotated in the direction of the arrow (top) shown in the figure i, Rotate. which is, By the connecting shaft of the clutch mechanism (not shown), the tilting cam (the omitted figure) provided on the right side of the front end of the rod 50 is provided. Move to the right, The pulley 51 and the cam shaft 10 2 of the sewing machine motor drive are connected. The camshaft 2 is rotated. In this camshaft 2, Disc-shaped front and rear feed cam body 6, The left and right feed cam bodies 4 and the front and rear feed cam bodies 36 are fixed to be parallel to each other. The cam bodies 4, 6, 36 is integrally formed with the cam shaft 2 to rotate. In addition, In Figure 6, For the convenience of viewing the schema, The pattern of the base station 200 is omitted. 15 As shown in Figure 6, Forming a wave on the outer circumferential surface of the front and rear feed cam body 6, and feeding the cam groove 5 forward and backward. The left and right feed cam grooves 3 are formed on the circumferential surface of the left and right feed cam bodies 4, The cam groove 37 is fed to the front and rear sides of the front and rear feed cam bodies % to form a waveform. The cam grooves 3, 5, 37 is formed to surround the camshaft 2 for one week's cam grooves 3, 5, The shapes of 37 are different. 20 As shown in Figure 6, The left and right feed swing arms 9 are provided on the left and right sides of the left and right feed cam bodies 4 in a long shape. After the swing arm 9 is fed to the left and right, the end portion is rotatable about the fixed axis 8 in the up and down direction. And connected to the top of the base station 200. Install the roller 1〇 under the front end of the left and right feed swing arm 9 This roller 10 is fitted to the left and right feed cam grooves 3. Thereby, the left and right feed swing arm 13 200902787 9 is rotated by the right and left feed cam body 4, and the roller 10 is fed along the left and right sides of the cam groove 3. When moving left and right, The rotation is centered on the fixed shaft 8. Such as the * W, As shown in Fig. 5®, an arcuate guide portion 66 centering on the shaft 61 is protruded from the upper surface of the right and left feed rocker arm 9. 5 as shown in Figure 4, As shown in Figure 6, A first rocking arm 31 as a first rocking body having an L-shape in plan view is disposed above the front and rear feed cam bodies 6, The upper side of the front and rear feed cam bodies 36 is viewed as a second rocking arm 32 as a second rocking body viewed in a plane in the left-right direction. The first swing arm 31 and the second swing arm 32 have a first swing arm portion 31a 1〇 and a second swing arm portion 32a, a second guide portion 33 as a first arc-shaped guide portion, and a second arc. The second guide portion 34 of the guide portion. The second rocking arm portion 3U and the second rocking arm portion 32a are respectively supported by a fixed shaft 11 as a first shaft member and a fixed shaft 35 as a second shaft member which are vertically erected on the base (frame) 200 in the vertical direction. , Simultaneously, Cam grooves 5 along the front and rear feed cam body 6 and the front and rear feed cam bodies 15 36, 37 shaking. The first guide portion 33 as the first arc-shaped guide portion and the second guide portion 34 as the second arc-shaped guide portion form a circular arc centering on the swing shaft 25 of the swing center of the front and rear feed switching arm 21. shape, In conjunction with the shaking of the first swing arm portion 31a and the second swing arm portion 323 disposed opposite to the front end, Fixed axis 11, respectively 35 is the center, Shake in the horizontal direction. *° The L-shaped bent portion of the first rocking arm 31 can be rotated around the fixed axis n in the up and down direction. And connected to the top of the base station 200, Extending from the curved portion to the one end portion in the front-rear direction, The curved portion extends to the other end in the left-right direction (see Fig. 6). A roller 14 as a first engaging member is mounted under the one end of the first swing arm 31, This roller 14 is fitted to the front and rear feed cam grooves 5. With this, 14th 200902787 1 The swing arm 31 is rotated by the front and rear feed cam body 6 When the roller 14 moves along the waveform of the front and rear feed cam grooves 5 to the left and right, The rotation is centered on the fixed shaft 11. The L-shaped bent portion of the second swing arm 31 is rotatable around a fixed shaft 35 that is erected in the up-and-down direction in parallel with the fixed shaft ,. And connected to the top of the base 2, Extending from the curved portion to the one end portion in the front-rear direction, It extends from the curved portion to the other end in the left-right direction. Here 'fixed shaft 8, 11, 35 are configured to be parallel to each other. A roller 38 as a second engaging member is attached to the lower end of one end of the second swing arm 32, This roller 38 is fitted to the front and rear feed cam grooves 37. With this, 10 second swing arm 32 rotates with the front and rear feed cam body 36, When the roller 38 moves along the waveform of the front and rear feed cam grooves 37 to the left and right, The rotation is centered on the fixed shaft 35. In addition, In Figure 5, For the convenience of viewing the schema, The drawing of the movable arm 31 is omitted. here, According to Figure 8, Figure 9, The second guide portion 33 15 and the second guide portion 34 of the present embodiment will be described in detail. The first guiding portion 33 is protruded from the curved portion of the second swing arm 31 to the upper end portion. The second guiding portion 34 is protruded from the curved portion of the second swing arm 32 to the upper surface of the other end portion. The first guiding portion 33 is located away from the second guiding portion 34 to the right. A gap is formed between the left end of the first guiding portion 33 and the right end of the second guiding portion 34. 2〇 In the present embodiment, the first and second guiding portions 33 of the nine cancers are opened, 34, Each of the opposite front ends is provided at each guiding portion 33, The outer radius of the arc of 34, a protruding portion 33a protruding toward the guiding portion on the other side, 34a. As shown in Figure 6 to Figure 9, Projection 333, (3) The guide portions of the front end toward the other side have a curved shape that is convex in plan view. From the i and 2 15 200902787 guides 33, 34 to each protruding portion 33a, The outer edge of the radial direction of 34a is continuously arranged on the same circumferential surface. First and second guiding units 33, 34 has a chamfered portion 33b which is chamfered in a curved shape at an inner corner of the opposite end portion in the half control direction, 34b. 5 arc-shaped guiding portions 33, The opposite ends of 34 are from the respective protrusions 33a, An inner edge portion of the radial direction of 34 to the arcuate guide portion 33, The radially inner corner portion of the opposite end portion of the 34 is viewed in plan view as the guide portion 33, a concave concave curved surface portion 33c is formed on the 34 side, 34c connection. further, In the first and second guiding portions 33, A side edge portion near the front end of each of the 34 faces is provided with a concave portion 33d which is recessed into a concave shape in a flat surface, 34d. another, In order to make the first and second guiding portions 33, The movement of 22 of 34 is easy. The recesses 33d' 34d are preferably associated with the chamfered portions 33b, The same radius of curvature is formed for 34b. Then, the first swing arm 31 is selectively switched, The left and right feeding arm is provided with a swing arm 9, The swiveling motion of the second rocking arm 32, The mechanism communicated to the movable body 18 is explained. As shown in Figure 3 to Figure 5, The front end of the link 201 is coupled to the shaft 61. a block 64 is disposed at a right end of the left and right feed arms 62, The block 64 is engageable with the guide portion 66. As shown in Figure 3, Figure 4, As shown in Figure 6, The movable body 18 is disposed in the front 20 rear direction, The switching arm 21 is applied before and after the switching arm of the present invention. The front and rear feed switching arm 21 is coupled to a swing shaft 25 that is vertically disposed in a state in which the front end portion is parallel to the fixed shaft 11 in the vertical direction. It can be rotated around this rotary shaft 25. After the front and rear switching arms 21 are disposed, the end portions are provided with the respective guiding portions 33, 34 sliding inner and outer sliding surfaces 22e, 22f (refer to Figure 9, Figure 10) 16 Block 22 of 200902787, By the rotation of the rotating shaft 25, the rotation of the rear feeding switch arm η is performed. The block 22 moves in an arc-shaped movement trajectory. then, The block body 22 is selectively engageable with the first and second side faces 33e before and after the first guiding portion 33 which is formed in an arc shape along the moving track of the block body 22, 33f and 2nd lead after the dawn of 34, 34e, 34f. which is, The lower surface of the block 22 has an arcuate groove centered on the rotating shaft 25, Engaged in a state in which it can be slidably connected to the second guide portion 33 or the second guide 434. The longitudinal section along the radial direction is in the shape of a slightly mouth-shaped shape which is open on the lower side. The block 22 is rotatably coupled to the front and rear feed switching arms 21 by an axis in the vertical direction. The block 22 is shaken by the transfer arm 21 before and after the movable body 10 18 is And the first and second guiding units 33, The inner and outer edges of the 34-inch direction are slid and moved, And selectively engaging the first and second guiding portions 33, 34, When the block 22 is engaged with the first guiding portion 33, the block 22 does not engage with the second guiding portion 34. In a state where the block 22 is engaged with the second guiding portion 34, The block 22 is not engaged with the first guiding portion 33. 15 The switching lever 2 9 is coupled to the front and rear feed switching arms 21 ′ in a state of extending rearward, and the user operates the rear end of the switching lever 29, The front and rear feed switching arms 21 are rotated about the rotation shaft 25, By this rotation, The selection block 22 is engaged with the first guiding portion 33 or the second guiding portion 34, By block 22, The movable body 18 moves, After the cloth is clamped to the cloth receiving portion 16 and the nail button clamping cloth foot 307, Send 20 cloth in the front and rear direction. An origin portion (not shown) is provided in each of the cam groove 5 and the cam groove 37 of the front and rear feed cam body 6 and the front and rear feed cam body 36, respectively. The origin portion is arranged by the operation of the switching lever 29 to align the two guiding portions 33 and the guiding portion 34 along the trajectory of the switching lever 29. When the block 22 moves between the two guiding portions 33 and the guiding portion 34, Two 17 200902787 The positions of the guiding portion 33 and the guiding portion 34 coincide with the trajectory of the movement of the block 22. When the sewing button sewing machine 301 is powered on and stopped after the sewing is completed, The cam shaft 2 is configured such that the roller cymbals and the rollers 38 that are respectively engaged with the cam bodies 6 and the cam bodies stop at the origin positions of the respective cam portions of the cam bodies. By the above structure, When the power is turned on and at the end of sewing, In other words, in a state where the roller 14 and the roller 38 are engaged in the origin of the front and rear feed cam bodies 6 and the front and rear feed cam bodies 36, When the user operates the switching lever 29, By the rotation (rotation) of the front and rear feed switching arms 21, The state in which the block 22 is engaged with the first guiding portion 33 is switched so that the block 22 is engaged with the second guiding portion 1 〇 34 or vice versa (4). another, At the 6th hour, For the convenience of viewing the schema, The drawing of the switching lever 29 is omitted. In a state in which the block 22 is engaged with the first guiding portion 33, The block 22 is slidable along the second guiding portion 34. By the stopper or the like, the rotation of the switching lever 29 centering on the rotary shaft 25 is restricted, The locking block 22 is in a position to engage the ith guiding portion. 15 Similarly, In a state in which the block 22 is engaged with the second guiding portion 34, The block 22 is slidable along the first guiding portion 33. By the stopper or the like, the rotation of the switching lever 29 centering on the rotary shaft 25 is restricted, The locking block 22 is engaged with the second guiding portion 34. ° So, The feeding device 1 selects the third and second guiding portions 33 by the movement of the block 22, Shake 34, Moving the movable body 18, The cloth held between the cloth receiving portion 16 and the nail button pressing foot 307 is moved back and forth. then, The operation and usage of the feed device 1 will be described. First of all, When the left and right feed cam bodies 4 are rotated, The left and right feed cam grooves 3 ′ left and right feed swing arm 9 are rotated left and right around the fixed axis. This rotation 18 200902787 is via the left and right feed arms 62, Communicated to the link 201, further, The action of the front end portion of the connecting rod 2〇1 is by a slider that engages with the long hole 19, Communicated to the movable body 18, The movable body 18 is centered on the slider 20a. , Rotate left and right. therefore, The front end of the movable body 18 vibrates left and right, The cloth that is clamped between the cloth receiving portion 16 and the nail button pressing cloth 307 is fed to the left and right. Simultaneously, The button that is grasped at the end of the 307 at the end of the pure buckle is fed to the left and right. then, The user operates the switching lever 29, The block 22 is engaged with the second guide portion 33. In this state, When the money is sent to the convex (four) 6 rotation, After the shot, the cloth groove 5 is The center of the fixed axis η is centered from the curved portion to the left end portion of the first rocking arm 31, Rotating back and forth 'by moving the front and rear arm 2 to move (4) to move back and forth. therefore, The cloth that is clamped between the cloth receiving portion 16 and the nail-like pressing cloth is fed forward and backward, (4), Was caught in the nail (10) 26 before the 7th talk of the button of the Qing before and after the feed. 10 On the other hand, the user operates the switching lever Μ, When the front and rear feed cam bodies 36 are rotated while the block n is engaged with the 15th second guide portion 34, By feeding the cam groove 37, The bending portion to the right end portion of the second rocking arm 32 are centered on the fixed shaft 35. Rotate back and forth, The movable body 18 is moved back and forth by the front and rear feed switching arms 2 . therefore, When the cloth is gripped between the cloth receiving portion 16 and the nail button and the pressing foot 307, the button that is gripped on the front end 20 of the nail is pressed forward and backward. Thus, the button and the front and rear feeds have the block 22 engaged with the first guide portion 33 and the block 22 engaged with the second material portion 34. another, Changing the position of the block 22 along the w guiding portion 33 or changing the position of the block 22 along the second guiding portion 34, The amplitude of the feed before and after can be changed. 19 200902787 Due to the cam body 4, 6, 36 is rotated by the cam shaft 2, and Therefore, before and after the electricity is fed, the cloth is fed and left and right. With the knowing buckle and cloth feeding, The slanting 306 is moved up and down. The button is sewn to the cloth in a 3-shaped or χ-shaped seam. In addition: Cycle before and after, The period of left and right movement, When moving forward and backward and moving left and right, 5 are based on cam groove 3, 5, 37 shape. also, When the user operates the switching lever 29, Needle 306 stops, Simultaneously, The cam shaft 2 also stops at the above-mentioned origin position. In order to make the cloth exit from the cloth receiving portion , 6, The hook 31 上升 which is raised by the pushing mechanism 3〇9 driven by the cam mechanism not shown in the figure is engaged with the inclined portion 3〇8a of the hook 308, The front end of the button presser foot 1307 is raised. 1) The hook hook 310 acts on the inclined portion 3〇8a, When the button clamps and presses the fabric 3〇7 before the end rises, The load to the front acts on the movable body 18, This load is made up of block 22, The first guide portion 33 or the second guide portion 34 before and after the rear side portion 33e, 33f and 34e, The 34f is supported by the fact that the movable body 18 does not move forward. however, The load acting on the front side of the movable body 18 acts on the block 15 22 . In this state, When the user wants to rotate the switching lever 29 to be changed in the shape of the seam from the first guiding portion 33 side to the second guiding portion 34 side, The front and rear feed switching arms 21 are rotated around the rotating shaft 25, The block 22 is separated from the first guiding portion 33, The movement is moved to the second guiding unit 34. at this time, Receiving the load acting on the front side of the movable body 18, Simultaneously, The second guide portion 34 side of the block 22 20 that is restricted in operation by the engagement with the first guide portion 33 is temporarily separated from the outer edge portion of the first guide portion 33. Therefore, the rotation torque of the arrow R direction shown in Fig. 8 is Rotate in the clockwise direction. however, In the present invention, Each of the outer edge portions of the two guiding portions of the first guiding portion 33 and the second guiding portion 34 is configured to be provided with a protruding portion 33a protruding from the other side with respect to the front end portion, 34a, When the block 22 moves from one guide to the other, the guide 20 200902787 Out of each? Outside the guide, the side edge. The distance of the crucible is greatly reduced, and the rotation portion 33 of the block 22 caused by the β-torque on the upper wire of the block 22 acts on the block 22, 34 moves to another guide, The block 22 can be smoothly taken from the guide portion 33, 34 ; Sewing 姊 _ machine 3 when the power is turned on and when the sewing ends, The camshaft 2 is configured as a guide portion 33, 34 stops at the origin position on the arc centered on the rotation axis 25. So that block a can be from - _33, 34_ to another paste, 34. however, 10 It is not easy to make the camshaft 2 correctly located at the above-mentioned origin position every time. It is impossible to avoid slight deviations. therefore, Each material part 33, 34 is stopped when the power is turned on and when the sewing is completed, and is stopped with respect to the circular arc centered on the rotation axis h. at this time, Contrary to the action of reducing the amount of rotation 22 caused by the gravity of the movable body, Blocks are more advantageous than those with higher degrees of freedom of doubt. 15 The feed device of the embodiment of the present invention is in a state in which the respective swing arms 3 and 32 are slightly deviated (refer to Fig. 9). It is also possible to make the block _ move to the _ guide portion 33, 34. which is, In this embodiment, Because of each guide 33, The inner edge portion of 34 has a plurality of material portions 33, 34 opposite ends, Therefore, it can be easily moved through the corner portion 33b, 34b, Concave curved surface portion 33c, 34c and the recess, 20 34d. here, According to Figure 9, Figure 10, The description will be made in more detail on each of the guiding portions 33, 34 corners 3313, Ground, The concave curved surface says, Ground and recess 33d, The role of tearing the various parts. In addition, here, As shown in Figure $, When the first guiding portion 33 is located forward of the second guiding portion 34, Make the block ribs as shown in Figure 21 200902787, The case where the second guide portion 34 is moved to the first guide portion 33 will be described as an example. First, as shown in Figure 9, When the block 22 is moved in the direction of the arrow S, the right end portion P1 of the inner sliding surface 22e of the block 22 abuts against the concave curved surface portion 33c of the first guiding portion 33, The block 22 is given a rotational force in the direction of the arrow G1. The block 22 is rotated in the direction of the arrow G1. When the block 22 is rotated in the direction of the arrow G1, While moving in the direction of the arrow S, As shown in Figure 10, The left end portion P2 of the inner side sliding surface 22e of the block 22 moves toward the protruding portion 34a along the corner portion 34b' of the second guiding portion 34. Simultaneously, The right end 10 portion P3 of the outer side sliding surface 22f of the block 22 is engaged with the concave portion 33d of the first guiding portion 33. here, Since the recess 33d is set to increase the degree of freedom of rotation of the block 22 in the G direction, Therefore, even if the first guiding portion 33 largely deviates to the front with respect to the second guiding portion 34, It is also possible to make the block 22 easy to move. When the block 22 moves in the direction of the arrow S, The right end portion P3 of the outer side sliding surface 22f of the block 22 that is engaged with the concave portion 3 3 d of the first guiding portion 33 is released from the concave portion 33d. Simultaneously, The outer side end portion P1 of the inner side sliding surface 22e of the block body 22 is guided by the chamfered portion 33b of the first guide portion 33. The sliding surface 22e of the block 22, 22f rotates in the direction of arrow G2. One side is engaged with both sides of the first guiding portion 33. Similarly, In a state where the second guiding portion 34 is located on the front side of the first guiding portion 33, The block 22 can also be moved from the first guiding portion 33 to the second guiding portion 34 side as described above. Each corner portion 33b, 34b, Concave curved surface portion 33c, 34c and recess 33d, 34d is formed when 22 moves between the first guiding portion 33 and the second guiding portion. The block 22 can be rotated at a large angle. Therefore, the block 22 can be smoother 22 200902787 at each guiding portion 33, 34 movements. also, By providing each of the above guiding portions 33, 34 protrusion 33a, 34a, Each corner portion 33b, 34b, Concave curved surface portion 33c, 34c and recess 33d, 34d, Each guiding portion 33, The front end of the 34 is formed to be closer to the inner and outer sliding surfaces 22e of the block 22, 22f 5 narrow shape, Therefore, when the block 22 is disposed on the two guiding portions 33, 34 rooms, Even if the pedal is stepped on, The camshaft 2 rotates, Each guiding portion 33, The front end of 34 can still slide the surface 22e inside and outside the block 22, Shaking between 22f, Even if the camshaft 2 rotates, It is also possible to prevent the sewing machine 301 from being damaged or stuck. As explained above, According to the feeding device 1 of the embodiment, By the outburst 10 out 33a, 34a is disposed at each guiding portion 33, 34 on the outer side of the radius, The front and rear feed switching arms 21 are shaken, When the block 22 is moved from the first guiding portion 33 to the second guiding portion 34 or moved in the opposite direction, Even if the load toward the front by the pushing mechanism 3〇9 acts on the movable body 18, The rotation of the block 22 can still be prevented, Therefore, each guide portion 33 can be prevented. The block of 34 blocks moves forward, That is, deviation 15 so that the block 22 can be along the guiding portion 33, 34 moves smoothly. According to the feed device 1 of the embodiment, Since each of the corner portions 33b is provided, 34b, Concave curved surface portion 33c, 34c and recess 33d, 34d, Therefore, the block 22 can be more smoothly in each of the guiding portions 33, 34 movements. By providing each of the above guiding portions 33, 34 protrusion 33a, 34a, Departments 20 33b, 34b, Concave curved surface portion 33c, 34c and recess 33d, 34d, Each guiding portion 33, The front end of 34 forms a lower inner side sliding surface 22e, 22f narrow shape, Therefore, when the block 22 is disposed on the two guiding portions 33, 34 rooms, Even if the operation pedal 'the cam shaft 2 is rotated', the guide portions 33, 34 front end can still slide the outer surface 22e within 22 Incited between 22f, Even if the camshaft 2 rotates, Also 23 200902787 Prevent the sewing machine 301 from being damaged or stuck. which is, The block 22 is disposed on the first and second guiding portions 33, 34 rooms, When starting the sewing machine, Cooperating with the first and second rocking arms 31, 32, The block 22 is rotatable about the connecting shaft of the switching arm 21, Therefore, the sewing machine 301 can be prevented from being damaged 5 or stuck. In addition, The present invention is not limited to the above embodiment, As long as it does not depart from the scope of the present invention, Various improvements and design changes are also possible. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side view of the sewing machine 301. 10 Fig. 2 is a perspective view of the sewing machine 301. Fig. 3 is a perspective view of the feed device 1 provided in the sewing machine 301. Fig. 4 is a perspective view of the feed device 1 shown from a different angle from Fig. 3. Fig. 5 is a schematic perspective view showing the rear portion of the feed device 1 obliquely. 15 Fig. 6 is a schematic view of the rear part of the feed device 1. Fig. 7 is a schematic perspective view showing the rear portion of the feed device 1 obliquely. Figure 8 shows the guide 33, The outline of the shape of 34 is shown above. Figure 9 is a view showing the guide portion 33 when the sewing machine is started, A schematic diagram of 34 and block 22. 20 Fig. 10 shows the guide portion 33 when the sewing machine is started, A schematic diagram of 34 and block 22. Fig. 11 is a schematic perspective view showing the selection switching mechanism of the feed cam before and after the conventional sewing machine. 24 200902787 [Description of main component symbols] 1. . . Feeding device 2. . . Camshaft 3. . . Cam groove (cam portion) 4. ··Double feed cam body (first cam body) 5. . . Cam groove (cam portion) 6··· front and rear feed cam body (first cam) 8... fixed shaft 9. . . The swing arm for the left and right feeds 11. . . Fixed shaft 14. . . Roller 16. . . Clothing section 17...long hole 18. . . Movable body 19. . . Long hole 20a. . . Slider 21·. · Front and rear feed switch arm (switch arm) 22. . . Block 22e... inside sliding surface 22f. . . Outer sliding surface 24. . . Connecting rod 25. . . Rotating shaft 27. . ·Axis 29. . . Switch lever 31·. ·1st swing arm (1st shaker) 31a. . . The first shaking arm 32··. 2nd swing arm (2nd swing body) 32a. . . The second rocking arm portion 33. . . First guiding portion (first arc-shaped guiding portion) 33a. . . Protruding part 33b. . . Cornering 33c. . . Concave curved surface portion 33d. . . Concave 33e. . . Front side 33f. . . Rear side 34. . . Second guiding portion (second arc-shaped guiding portion) 34a. . . Projection 34b. . . Dehorned portion 34c. . . Concave curved surface portion 34d. . . Concave 34e. . . Front side 34f. . . Rear side 35. . . Fixed shaft 36. . . Front and rear feed cam body (2nd cam body) 37. . . Feeding cam groove before and after 25 200902787 38. . . Roller 50· •. Rod 51. . . Pulley 61. _ · Axis 62... left and right feed arm 64. . . Block 66. . . Guide part 101. . . Movable body 102... Rotary shaft 103... Switching lever 104. . . Block 105. . . Front and rear feed cams 106. . . Shake the arm 106Α. . . Guide department 200··. Abutment (rack) 201. . . Connecting rod 203. . . Fixed shaft 301. "Sewing button sewing machine 302. . . Machine tool section 303...straight solid part 304. . . Arm 305. . . Needle bar 306". Needle 307. . . Nail button pressing cloth (pressing cloth) 308. . . Fishing 308a. . . Inclined portion 309. . . Pushing mechanism 310··. Hook 26