九、發明說明： 【發明所屬之技術領域】 發明領域 本發明涉及用於測定由縫製裝置縫製的縫製物張力的 裝置。 L先前技術3 發明背景 在用縫幼機縫製縫製物時，操作者將手按在縫f物上 而進行輔助，譬如以不發錄褶等、適於縫製的伸張狀態， 將縫製物送人。該輔助作業是—個需要熟_作業，即、 操作者必祕據從縫製物傳遞财上的反仙力邊感受 到縫製物的張力’邊使張力保持—定。當手對縫製物按壓 方式發生變化時，會使縫製物的張力發生變化，使被送入 的縫製物的伸張狀態發生變化。這時，就會使縫製製品的 完=尺寸發生變化等，使質量產生偏差。特別是在场布上、 對化邊或減帶等具有伸縮性的縫製物進行縫製時 ，縫製 物的張力不同對縫製製品的影響就變大。根據這樣的理 由’希望有-種能對縫製物的張力進行測定的裝置。 第12圖是將作爲現有技術的伸縮布帶給料機⑽化地 表不的概要圖。在日本專利公報第3號中公開的伸縮 布帶給料機1的結構是：由驅動輥3、將伸縮布帶2從布帶卷 4抽出’介由送出導引件5而進行供給。在該伸縮布帶給料 機1上，爲了在驅動輥3和送出導引件5之間、以鬆弛的狀態 供給伸縮布帶2 ’設置著能回轉位移的檢測臂7，使它的前 1352759 端部與鬆弛部分的布帶上面相交，根據伸縮布帶2的鬆弛量 使檢測臂7上下地進行回轉位移，用感測器8檢測上述檢測 臂7的回轉位移量。然後，由控制部9根據檢測臂7的上下位 置，對使驅動輥3轉動的電動機10的驅動轉數進行控制。在 5 該伸縮布帶給料機1上，對伸縮布帶2的鬆弛量進行檢測， •溆 而且該結構還能將伸縮布帶2的張力作爲檢測臂7的上下位 置而加以檢測。 雖然在日本專利公報第3061256號中公開的現有技術 # 中，能測定伸縮布帶的張力，但是，原本是用於測定鬆弛 10 量的結構，即使直接挪用，也不能正確地測定縫製物的張 力。而且該結構較複雜，受設置場所的限制較大，不能設 置在設有縫紉針等多個其他部件的縫製位置附近，此外， 該結構是不能測定操作者按著手時縫製物的張力的。這 樣，還沒有能在缝製位置附近測定操作者按著手而輔助地 15 進行輸送的縫製物張力的裝置，非常希望能有這樣的裝置。 【發明内容】 ® 發明概要 本發明的目的是提供一種縫製物張力測定裝置，其受 設置場所的限制較少，即使是操作者按著手的縫製物，也 20 能對該縫製物的張力進行測定。 ’本發明的縫製物張力測定裝置，其特徵在於，包含噴 出部和檢測部，上述喷出部是用於使從氣體供給源供給的 氣體向縫製物喷出的；上述檢測部是用於檢測從喷出部喷 出的氣體的狀態量的。 6 1352759 根據本發明的縫製物張力測定裝置，其是使氣體從喷 出部向縫製物噴出、由檢測部檢測表示該氣體狀態的狀態 量。喷出部的噴出孔處於被縫製物覆蓋的狀態（下面，稱爲 「覆蓋狀態」），該覆蓋狀態根據縫製物的張力而變化。當 5 覆蓋狀態發生變化時，對氣體噴出的阻力就變化，噴出的 氣體的狀態量就變化。通過檢測該狀態量，就能從該狀態 量求出縫製物的張力。而且，只要將噴出部設置在要測定 張力的位置附近就可以，可以將其他構件設置在遠離的位 置上，因而很少受設置場所的限制。而且即使是操作者將 10 手按在縫製物上，也能測定張力。 本發明的縫製物張力測定裝置還包含供給調整部，其 介於氣體供給源和喷出部之間，調整從氣體供給源供到噴 出部的氣體的狀態量。 根據本發明，由供給調整部對從氣體供給源供到喷出 15 部的氣體的狀態量進行調整。由此，能防止由檢測部檢測 的氣體狀態量因供給狀態而發生變化，能將其調整成隻根 據縫製物的張力而發生變化。 在本發明的縫製物張力測定裝置的特徵在於，氣體狀 態量是包含壓力的。 20 根據本發明，氣體的狀態量是包含壓力。氣體的壓力 與縫製物的張力之間有相關的關係，通過對該壓力的檢測 就能求出縫製物的張力。 本發明的縫製物張力測定裝置的特徵在於，還包含運 算部和報知部，上述運算部是用於從檢測部檢測的氣體的 7 狀態量運算而求出縫製物張力的；上述報知部是用於報知 由運算部求得的與縫製物的張力有關的資訊的。 根據本發明，由運算部從檢測到的氣體的狀態量進行 運异而求得縫製物的張力。再由報知部將求得的與縫製物 的張力有關的資訊報知給操作者。這樣，就能自動地求得 縫製物的張力，並將與此相關的資訊報知給操作者。 如果採用本發明，則能從檢測到的氣體狀態量求得縫 製物的張力。而且，只要將噴出部設置在要測定張力的位 置附近就可以，能將其他構件設置在遠離的位置上报少 文設置場所㈣制。由此能在想掌握縫製物的張力的位置 上進行縫製物的張力測定，有很高的方便性。譬如，可以 將喷出部設置在對缝製物進行縫製的縫製位置附近這 時，就能測定被縫製之前的縫製物的張力。而且，即使是 操作者將手按著，也能測定張力◊譬如，即使是操作者按 著手而進行輔助送進的縫製物，也能測定該縫製物的張 力。這樣，就能作出方便性較高、能很好適於縫製物的張 力測定的測定裝置。 如果採用本發明，則能調整由檢測部檢測到的氣體的 狀態ϊ:，以使其只根據縫製物的張力而發生變化。由此能 高精度地測定縫製物的張力。 如果採用本發明，則能檢測壓力而求得縫製物的張 力。能容易地實現用於檢測壓力的感測器，並能容易地實 現裝置的製造。 如果採用本發明，則能自動地求得縫製物的張力，將 1352759 與該張力相關的資訊報知給操作者，因而操作者能容易地 掌握縫製物的張力。 由下面的詳細說明和附圖能更清楚地瞭解本發明的目 的、特色和優點。 5 圖式簡單說明 第1圖是表示本發明的一個實施例的縫製物張力測定 裝置的正視圖。 第2A，B圖是用於說明由測定裝置測定張力的原理的斷 面圖。 10 第3圖是表示由校正試驗求得的張力和壓力之間關係 的一個例子的圖表。 第4圖是表示設有測定裝置的縫紉機的立體圖。 第5圖是表示測定裝置的結構的框圖。 第6圖是放大地表示縫紉機的針板附近的立體圖。 15 第7圖是表示針板的俯視圖。 第8圖是沿著第7圖的S8 — S8線來看的斷面圖。 第9圖是表示喷嘴部的第1構件的正視圖。 第10圖是表示第1構件的俯視圖。 第11圖是表示噴嘴部的第2構件的正視圖。 20 第12圖是將作爲現有技術的伸縮布帶給料機簡化地表 示的概要圖。 I：實施方式3 較佳實施例之詳細說明 下面，參照著附圖，對本發明的最佳實施例進行詳細 9 第1圖是表示本發明的一個實施例的缝製物張力測定 裝置20的正視圖。縫製物張力測定裝置（下面、簡稱爲「測 定裝置」）20是用於測定縫製物張力的裝置。測定裝置2〇至 少包含噴出部21和檢測部22，本實施例還增設有供給調整 部23、氣體供給源24、控制部25、報知部26、管路27。 管路27是能輸送空氣等氣體的管路。氣體供給源24是 與管路27的一個端部27a相連接地設置的。氣體供給源24是 用於供給壓力比大氣壓高的氣體的，可以作成譬如用泵或 送風機等對周圍的空氣進行壓縮而供給的結構，也可以作 成供給被收容在壓縮空氣罐等容器中的被壓縮過的空氣的 結構。 噴出部21是設置成與管路27的另一個端部27b相連接 的。介由管路27、從氣體供給源24將氣體供到喷出部21。 噴出部21設有排出孔31，噴出部21是從排出孔31將供給的 氣體喷出的噴嘴裝置。通過將縫製物30配置成覆蓋、堵住 喷出孔31那樣’就能用噴出部21使氣體朝縫製物3〇喷出。 噴出部21可以與管路27分體地構成；也可以構成一體。 檢測部22在氣體供給源24和喷出部2丨之間介於管路27 上，是形成用於檢測從噴出部21喷出的氣體的狀態量的結 構。所謂氣體狀態量是表示包括壓力、流量和流速的氣體 狀態的量。這些狀態量是隨著氣體的喷出狀態而變化的 ΐ。氣體的喷出狀態根據喷出孔31被縫製物3〇覆蓋的狀態 (下面、簡稱爲「覆蓋狀態」）而變化。該覆蓋狀態是根據縫 1352759 製物30的張力而變化的。因此，氣體的狀態量是根據縫製 物的張力而變化的。這樣，檢測部22依存於缝製物的張力， 檢測回應該張力的變動而進行變動的氣體的狀態量。 在本實施例中，檢測部22是壓力感測器，其檢測作爲 5 氣體狀態量的氣體壓力。作爲壓力感測器，可以使用各種 原理、結構的感測器，沒有特別的限定。 供給調整部23介於氣體供給源24和喷出部21之間的管 路27上，用於調整從氣體供給源供給噴出部21的氣體狀態 量。具體地說，是將向噴出部21供給的狀態調整成這樣， 10 即、在喷出孔31沒被縫製物30覆蓋的狀態下、換言之、在 氣體能從噴出孔31自由地噴出的狀態下，使從喷出孔31喷 出的氣體的狀態量變成一定。 在本實施例中，供給調整部23設有調節器33和流量調 整閥34。調節器33和流量調整閥34分別介於管路27上。 15 作爲壓力調整部的調節器33也可以稱爲調壓閥，用於 將二次側的壓力調整成設定壓力。因此，即使是成爲該調 節器33的氣體供給方向上游側的氣體供給源24側的壓力由 於氣體供給源24的動作等原因而發生變動，也能防止成爲 調節器33的氣體供給方向下游側的噴出部21側的壓力變 20 動，使其力保持成一定的設定壓力。設定壓力是可以由操 作者進行操作而任意地設定的。 作爲流量調整部的流量調整閥3 4被配設在調節器3 3的 氣體供給方向下游側。流量調整閥34是做成能對閥的開度 進行調整的，由該開度的調整就能對流過流量調整閥34的 11 供給噴出 流量進行調整。因此，就能調整從氣體供給祕 部21的氣體供給流量。而且，由於由設置在上游側 器33將壓力保持成—定，因而也能將供給流量變成 流量調整__度是可Μ操作者進行操作 5 定的 由於設置有該供給調整 91ή. ^ * °Ρ 3，因而就能將供到噴出部 10 和流量保持成-定地加以調整。如果壓力 和流量Γ魏、，則流速也是—定的，由此就能將氣體的厂堅 力、流1和流速保持成—定。這樣，從氣體供給㈣供到 喷出部21的氣體狀態量就能由供給調整部23轉成一定。 控制α p 2 5是根據由檢測部2 2檢測到的氣體狀態量進行 ，算而求得縫製物30的張力的運算部，譬如可以由中央運 算處理電路(CPU)來實現這些操作。在本實施例中，是將由 15 檢，部22檢測到的、表示氣體壓力的檢瀬力信號加在控 制°卩25上。控制部25根據表示檢測壓力信號的壓力、和由 j试驗等預先求得的表示氣體壓力與縫製⑽之間關係 制"訊（下面有時稱爲「關係資訊」），進行運算並求得縫 製物30的張力。關係資訊可以存儲在存儲抑中運算時 由控制部25讀出。 「報知#26疋用於報知資訊的，f亥資訊(下面，有時稱爲 張力資訊」）是與由控制部25運算而求得的縫製物3〇張力 -的4之控制部25將指令信號施加到報知部％，以便指 =報知與縫製物3G的張力相關的資訊報知料根據該 曰令、報知張力資訊。這樣’報知部26就由控制部25進行 12 1352759 控制。 張力資訊可以是表示張力的資訊，也可以是表示張力 是否大於預先設定的設定值的資訊、或表示張力是否在預 先設定的範圍内的資訊。報知部26是爲了報知這樣的張力 5 資訊而構成的。 報知部26是一個如顯示部那樣的結構，可以用數字和 色彩等顯示張力，可以對張力是否大於設定數值進行顯 示，也可以顯示張力是否在範圍内。這時，雖然可以用如 液晶顯示裝置那樣能顯示數字和文字的顯示部，但也可以 10 是這樣的結構，例如用設有1個或多個燈泡的顯示部，可以 根據張力的不同而進行燈泡的點亮和熄滅的替換，使點亮 的燈泡發生變更、或使點亮的燈泡的個數發生變更的結 構，也可以是其他的使發光的色彩和發光的光量（亮度)發生 變化的結構。 15 報知部26還可以譬如是聲音輸出部，可以是根據張力 的不同而變更音量或音色的結構。也可以是當張力變成大 於預定的臨界值時就輸出警告聲音的結構。 報知部2 6還可以是使操作者身體感受到張力資訊的體 感部，例如、將缝幼機的驅動系統用作報知部26，通過使 20 缝製動作的停止而報知張力資訊。可以有選擇地利用這些 具體的結構中任意一種構成報知部26，也可以有選擇地組 合多種而構成報知部26。 第2圖是用於說明由測定裝置20測定張力的原理的斷 面圖。第3圖是表示由校正試驗求得的張力和壓力之間關係 13 5 的一個例子的圖表。 度。第3圖是表示用各種不：省略了縫製物3〇的厚 壓力之間的關係。當使氣體^縫製的縫製物3〇的張力和 縫製物30從噴出部21推向遠離的時，由氣體將 管茫Λ沾士丨1 的方向廷時，縫製物30不 如第__的叫-定的，則 =所：，縫製物30的張力越小 21越遇的位置；如第2Β圖所 停留在越接近噴出部21的位置上縫製物3〇的張力越大，就 10 小，=ΓΓ遠離噴出部21，氣體對噴出的阻力就越 越谷易喷出。相反，縫製物30越接近噴出部21，氣 體對嗔出的阻力就越大，就越難噴^ ;; 15 20 而且當縫製物30的種類不同時，具體地說當縫製物 的結構和厚度尺寸等不同時，氣體透過時的阻力也就不 同。特別是當缝製物30是具有伸縮性、由張力的不同而使 織眼(織目）和網眼(編目）的大小發生變化的縫製物時，即使 是同-種縫製物’由於張力的不同’也會使氣體透過時的 阻力發生變化。因此，對噴出的阻力，即、進行喷出的難 易程度的變化不光是取決於縫製物3〇是處在相對於喷出部 21的接近位置和相反方向上的遠離位置，還取決於縫製物 3〇的種類、織眼和網眼大小的變化。當喷出的難易程度發 生變化時，氣體的喷出狀態就變化，被喷出的氣體的保括 壓力等狀態量就變化。 這樣，從嗔出部21喷出的氣體的狀態量會根據縫製物 3〇的張力等決定因素而進行變化。因而，進行校正試驗， 14 1352759 如第3圖所示，求出各個縫製物30的每一種類的作爲狀態量 的壓力和張力的關係，即、求得上述資訊關係，在實際縫 製時，用該資訊關係，從氣體的壓力進行運算而求出縫製 物30的張力。 5 這樣，根據測定裝置20，由噴出部21向縫製物30喷出 氣體，由檢測部22檢測表示該氣體狀態的狀態量、譬如壓 力。通過對該狀態量的檢測，就能由控制部25進行運算並 求出縫製物30的張力。由於這樣的測定裝置20只要將喷出 部21設置在縫製物30的要測定張力的位置附近就可以，可 10 以將其他的主要構件，具體地說，可以將檢測部22、供給 調整部23、氣體供給源24等構件設置在較遠的位置上，因 而就很少受設置場所的限制。而且、由於是用滾子等構件 保持縫製物30，因而也不受縫製物30的保持和配置的限 制，即使是操作者將手按著縫製物、也能進行張力的測定。. 15 而且，由供給調整部23對從氣體供給部24供到喷出部 21的氣體進行調整，使氣體的狀態量保持成一定。由此防 止由檢測部22檢測的氣體狀態量因供給狀態而變化，使氣 體狀態量只因缝製物30的張力而變化，因而能高精度地測 定張力。 20 還能由控制部25自動地求出張力，由報知部26、將求 得的與縫製物30的張力相關的資訊報知給操作者。使操作 者能容易地掌握縫製物30的張力。因此，即使操作者的技 術沒有達到很高的熟練程度，也能掌握缝製物30的張力， 能很好地完成縫製作業。 15 1352759 10 第4圖是表示設有測定裝置20的縫紉機40的立體圖。第 5圖是表示測定裝置2〇的結構的框圖。第6圖是放大地表示 缝紉機40的針板41附近的立體圖。縫紉機4〇是用於將作爲 帶狀物的第2縫製物42(下面，有時稱爲「帶狀物j )縫在作 爲布链的第1縫製物（下面，有時稱爲「布坯j )30上的縫紉 機’譬如是鋸齒形線跡縫紉機。在鋸齒形線跡縫紉機的情 況下’用於譬如縫製作爲胸罩的裝飾物的花邊等帶狀物。 還可以使用其他種類的縫紉機，譬如用於要將鬆緊帶縫製 在游'永衣的腰圍部或褲腳部等情況下的縫紉機。 15 縫切機40有縫紉機主體47和測定裝置20。缝紉機主體 菫噠的狀態將各個縫製物30、42放置在針板41的底 a上，由針板41和壓腳43夹持各個縫製物30、42。在該狀 二縫㉟機主體47由設有送齒的送進機構（圖巾沒有表示） 往個縫製物3G、42朝送進方向A送進的同時，使針44上下 動而使針線插通各個縫製物3〇、42，與針的上下移 的線相ίΓ轉驅動的針筒49將針線捕捉住，使其與梭心 進行縫，成針跡。這樣’就能對各個縫製物30、42 20 物42= =體47對縫製物3〇、42侧 動地供二布二=體47的縫製動作相配合、自 生敞槽等、以、J 者科輔助地按著、使其不發 地說該縫製二比^的伸張狀態送進到縫製位置，具體 時，當由摔作者^十位置更位於送進方向八的上游側。這 者的輔助動作而使加在布咖上的張力發生 16 變化時’就會錢製製品上産生尺寸料差，爲了防止這 種事故的發生，對布糊的張力進行測定，以報知操作者 而設置測定裝置20。 將噴出。P21安裝在針板41上地設置。嘴出部21相對於 針板41的落針位置位於送進方向a的上游側接近送齒地設 置的。該噴出部21是在針板41的上方、噴出孔31朝上開口 地設置的，能朝設置在針板41上的布卿噴出氣體。操作 者用這樣的結構就能對按著手而進行輔助送進的布坯3〇的 縫製位置附近的縫製之前的張力進行測定。 這樣，在將測定裝置2〇設置在縫紉機4〇上的情況下， 可以將顯示部50、縫紉機主體47的驅動系51和蜂鳴器52用 作報知部26。雖然這時也可以完全不用顯示部5〇、縫紉機 主體47的驅動系51和蜂鳴器52，但可以有選擇地使用它們 之中的1個或2個。 顯示部50的結構是具有由譬如發光二極體(LED : Light emitting Diode)構成的多個、譬如5個燈泡，由控制部25進 行控制、使與布坯30的張力相對應個數的燈泡點亮，由點 焭的個數顯示布述30的張力。一個更具體例子的結構是對 每個燈泡的點亮和熄滅時的不同轉換張力進行設定，使點 亮的燈泡個數與布坯30的張力相對應地發生變化。這時， 也可以用不同彩色的燈泡，即、將轉換張力不滿預先設定 的第1臨界值的燈泡取成綠色，將轉換張力超過第1臨界值 的燈泡取成紅色等。由這樣的顯示，操作者就能掌握縫製 物的張力情況。 1352759 縫幼機主體47的驅動系51具有作爲電動機的驅動源 (圖中沒有表利和皮帶輪S3等動力産生傳遞機構、針44、針 筒49和包含送進機構的縫製機構54。在將該驅動系 作報知部26時，驅動系51由控制部25進行控制。具體地說， 5在布㈣的張力不滿預先設定的第2臨界值時，容許按照操 作者進行的其他的操作進行縫製動作，當布⑽的張力超 過第2臨界值時’不管操作者進行的其他操作情況如何，都 強制地使縫製動作停止。由此，操作者就能感受到縫幼機 主體47的縫製動作停止，能掌握張力。該驅動系51也是一 1〇 個體感部。 蜂鳴器52是個聲音輸出部，由控制部25進行控制。具 體地說、在布㈣的張力不滿預先設定的第3臨界值時，停 止警告聲音的輪出；當布⑽的張力超過第3臨界值時，輪 出警告聲音。由此，操作者可以根據警告聲音而掌握張力。 15 上述的第1〜第3臨界值相互之間可以是同一個 可以是不同的值。而且，顯示部56可以是用數字顯示張力 的結構。而且蜂鳴器52可以是根據布_的張力而使音量 和音色中至少任意一個發生變化的結構。 9里 第7圖是表示針板41的俯視圖。第8圖是沿著第7圓的％ 20 -S8線來看的斷面圖。第9圖是表示噴射部以的第！構件^ 的正視圖。第10圖是表示第！構件55的俯視圖。第_ 示喷射部21的第2構件56的正視圖。在針板“上，相對=落 針位置的中心點C，在送進方向厶的上游側位置上，沿著= 板41的厚度方向插通地形成有用於安裝噴射部2】的圓=十 18 1352759 安裝用孔58。安裝用孔58形成在對送齒的動作不會帶來妨 礙的位置上，而且在盡可能接近落針位置的中心點c的位置 上。 喷出部21具有第1和第2構件55、56。第1構件^具有嵌 5合部6〇和卡止部61，前者具有比安裝用孔58的内徑還小的 外徑，後者是與嵌合部60的軸線方向一側相連接的。卡止 部61的轴線方向另一（嵌合部6〇)側是作成大直徑的圓錐台 狀，最大直徑部分具有比上述安裝用孔58的内徑還大的外 徑。在第1構件55的軸線方向卡止部側的端部上形成喷出孔 1〇 31 ’在第1構件55上設有與喷出孔31相連的内孔62。噴出孔 31的開口是没置在軸線方向一側，内孔以的開口是設置在 軸線方向的另一側。在該第丨構件5 5的軸線方向另一側部分 上還刻設著内螺紋。 第2構件56具有：基部64、與基部64的軸線方向的一側 相連接的連接部63。基部64具有比上述安裝用孔58的内徑 還大的外從，在軸線方向的另一側表面部上形成工具搁置 的擱置部65。連接部63刻設著外螺紋，作成能與第丨構件55 進行螺紋接合。在第2構件56上，形成沿著基部64的半徑方 向開口、並且在連接部63上、沿著軸線方向開口的通路孔 66。在第2構件56的基部64上，在鄰接通路孔66的部分80上 刻設著内螺紋’作成能將管路27的另一個端部螺紋接合地 連接。 噴出部21是安裝成這樣，即、將第1構件55配置在針板 41的上方側’將第2構件56配置在針板41的下方側，以插通 19 過安裝用孔58的狀態相互螺 方向的兩側)將針板41夹持°上下方向兩側(厚度 成爲安裝在針板41上^而女裝在針板41上。這樣，構 出氣體的喷嘴裝置。突出在：1的上方側、從噴出孔31噴 件55的卡！十板41的上方側部分只有第1構 且上’因而對布咖的送進不會帶來妨礙。而 物的ΓΓ又是作成變細嶋，⑽糊地完成布 10 15 上述的貫施例只不過是本發明的—個實施例的例子， =結構疋可以變更的。譬如，由檢測部Μ檢測的氣體狀 心量，可以取代壓力而採用流速或流量；也可以對這些狀 態量中的多個狀態量進行檢測。而且，不僅能測;t上述操 作者按著手、辅助地進行送進的布㈣的張力也可以測 定帶狀物42等其他縫製物的張力。也可以設置在鑛齒形線 H刃機以外的其他縫纟錢上。而且構成噴出部21的第【構 件和第2構件55、56還可以作成在第1構件55是設置外螺 紋 '在第2構件56上設置内螺紋而進行連接的結構。 20 在不脫離本發明的主題或主要特徵的情況下，可以用 別的方式來實施本發明。因此上述實施例的所有的内容只 不過是一個簡單的例子。本發明的範圍是如申請專利範圍 中所述的，不受說明書任何限定。而且，凡是屬於如申請 專利範圍所述範圍内的變形或變更都是在本發明的範圍之 内。 C圖式簡單說明】 第1圖是表示本發明的一個實施例的縫製物張力測定 20 1352759 裝置的正視圖。 第2A，B圖是用於說明由測定裝置測定張力的原理的斷 面圖。 第3圖是表示由校正試驗求得的張力和壓力之間關係 5IX. OBJECTS OF THE INVENTION: Field of the Invention The present invention relates to a device for measuring the tension of a sewing machine sewn by a sewing device. L. Prior Art 3 Background of the Invention When sewing a sewing machine with a slitting machine, the operator assists by pressing the hand on the sewing material, for example, in a stretched state suitable for sewing without pleating, etc., and the sewing material is delivered. . The auxiliary work is a work that requires the workmanship, that is, the operator knows that the tension of the sewing material is felt by transmitting the negative force of the sewing material from the sewing material. When the hand presses the sewing material, the tension of the sewing material changes, and the stretched state of the fed sewing material changes. At this time, the finished product of the sewn product is changed in size, and the quality is deviated. In particular, when sewing a stretched sewing material such as a side or a belt on a field cloth, the influence of the tension of the sewing material on the sewn product becomes large. According to such a reason, it is desirable to have a device capable of measuring the tension of the sewing material. Fig. 12 is a schematic view showing a retractable tape feeder (10) of the prior art. The stretchable tape feeder 1 disclosed in Japanese Patent Laid-Open No. 3 has a structure in which the stretchable tape 2 is taken out from the tape roll 4 by the drive roller 3 and supplied via the feed guide 5. In the stretchable tape feeder 1, in order to supply the stretchable tape 2' between the drive roller 3 and the delivery guide 5 in a slack state, a detecting arm 7 capable of rotational displacement is provided, so that its front 1352759 end The portion intersects with the upper portion of the slack portion, and the detecting arm 7 is rotationally displaced up and down according to the amount of slack of the stretchable tape 2, and the amount of the rotational displacement of the detecting arm 7 is detected by the sensor 8. Then, the control unit 9 controls the number of driving revolutions of the motor 10 that rotates the drive roller 3 based on the vertical position of the detecting arm 7. On the retractable tape feeder 1, the amount of slack of the stretchable tape 2 is detected, and the structure can also detect the tension of the stretchable tape 2 as the upper and lower positions of the detecting arm 7. In the prior art # disclosed in Japanese Patent Laid-Open No. 3061256, the tension of the stretchable tape can be measured. However, the structure is originally used for measuring the amount of slack. Even if it is directly used, the tension of the sewing material cannot be accurately measured. . Further, this structure is complicated and is limited by the installation place, and cannot be placed in the vicinity of the sewing position where a plurality of other members such as sewing needles are provided. Further, the structure cannot measure the tension of the sewing material when the operator presses the hand. Thus, there is no means for measuring the tension of the sewing material which is conveyed by the operator in the vicinity of the sewing position by the hand, and it is highly desirable to have such a device. SUMMARY OF THE INVENTION SUMMARY OF THE INVENTION An object of the present invention is to provide a sewing material tension measuring device which is less restricted by an installation place and which can measure the tension of the sewing material even if the operator presses the sewing material. . The sewing apparatus tension measuring apparatus according to the present invention includes a discharge unit that discharges a gas supplied from a gas supply source to the sewing material, and a detection unit that detects the same The amount of state of the gas ejected from the ejecting portion. In the sewing material tension measuring apparatus according to the present invention, the gas is ejected from the ejecting portion to the sewn product, and the detecting unit detects the state of the gas state. The discharge hole of the discharge portion is in a state of being covered by the workpiece (hereinafter referred to as "coverage state"), and the cover state changes depending on the tension of the sewing material. When the state of coverage of 5 changes, the resistance to gas ejection changes, and the state of the gas that is ejected changes. By detecting the state quantity, the tension of the sewing material can be obtained from the state quantity. Further, as long as the discharge portion is provided in the vicinity of the position at which the tension is to be measured, the other members can be placed at a position away from each other, and thus are rarely restricted by the installation place. Moreover, even if the operator presses 10 hands on the sewing material, the tension can be measured. The sewing material tension measuring device according to the present invention further includes a supply adjusting portion that is interposed between the gas supply source and the discharge portion to adjust the state amount of the gas supplied from the gas supply source to the discharge portion. According to the invention, the state of the gas supplied from the gas supply source to the discharge portion 15 is adjusted by the supply adjustment unit. Thereby, it is possible to prevent the amount of gas state detected by the detecting portion from changing due to the supply state, and it is possible to adjust it to change only according to the tension of the sewing material. The sewing tension measuring device of the present invention is characterized in that the gas state amount is pressure-containing. According to the invention, the state quantity of the gas is a pressure. There is a correlation between the pressure of the gas and the tension of the sewing material, and the tension of the sewing material can be obtained by detecting the pressure. The sewing material tension measuring apparatus according to the present invention is characterized by further comprising: a calculation unit that calculates a tension of the sewing material for calculating the state of the gas detected by the detecting unit, and a notification unit; The information related to the tension of the sewing material obtained by the calculation unit is reported. According to the invention, the calculation unit obtains the tension of the sewing material from the state quantity of the detected gas. Further, the information obtained by the notification unit relating to the tension of the sewing material is reported to the operator. In this way, the tension of the sewing material can be automatically obtained, and the information related thereto can be reported to the operator. According to the present invention, the tension of the sewing material can be obtained from the detected amount of gas state. Further, the discharge portion may be provided in the vicinity of the position at which the tension is to be measured, and the other member may be placed at a position distant from the place where the document is installed (4). This makes it possible to measure the tension of the sewing material at a position where the tension of the sewing material is desired, which is highly convenient. For example, when the discharge portion is provided in the vicinity of the sewing position at which the sewing material is sewn, the tension of the sewing material before being sewn can be measured. Further, even if the operator presses the hand, the tension can be measured, and the tension of the sewing material can be measured even if the sewing material is assisted by the operator with the hand. Thus, it is possible to provide a measuring device which is highly convenient and can be suitably adapted to the tensile force measurement of the sewn article. According to the present invention, the state of the gas detected by the detecting portion can be adjusted so as to vary only in accordance with the tension of the sewing material. Thereby, the tension of the sewing material can be measured with high precision. According to the present invention, the pressure can be detected to determine the tension of the sewing material. A sensor for detecting pressure can be easily realized, and the manufacture of the device can be easily realized. According to the present invention, the tension of the sewing material can be automatically obtained, and the information relating to the tension of 1352759 can be notified to the operator, so that the operator can easily grasp the tension of the sewing material. The objects, features and advantages of the present invention will become more apparent from the detailed description and appended claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front elevational view showing a sewing apparatus tension measuring apparatus according to an embodiment of the present invention. Figs. 2A and 2B are cross-sectional views for explaining the principle of measuring tension by a measuring device. 10 Fig. 3 is a graph showing an example of the relationship between the tension and the pressure obtained by the calibration test. Fig. 4 is a perspective view showing a sewing machine provided with a measuring device. Fig. 5 is a block diagram showing the configuration of a measuring device. Fig. 6 is a perspective view showing the vicinity of the needle plate of the sewing machine in an enlarged manner. 15 Fig. 7 is a plan view showing the needle plate. Figure 8 is a cross-sectional view taken along the line S8 - S8 of Figure 7. Fig. 9 is a front elevational view showing the first member of the nozzle portion. Fig. 10 is a plan view showing the first member. Fig. 11 is a front elevational view showing the second member of the nozzle portion. 20 Fig. 12 is a schematic view showing a simplified embodiment of a retractable tape feeder as a prior art. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a front view showing a sewing apparatus tension measuring apparatus 20 according to an embodiment of the present invention. Figure. The sewing material tension measuring device (hereinafter simply referred to as "measuring device") 20 is a device for measuring the tension of the sewing material. The measuring device 2 includes at least the ejecting unit 21 and the detecting unit 22. In the present embodiment, the supply adjusting unit 23, the gas supply source 24, the control unit 25, the notification unit 26, and the line 27 are further provided. The line 27 is a line that can transport a gas such as air. The gas supply source 24 is provided in contact with one end portion 27a of the line 27 to be grounded. The gas supply source 24 is for supplying a gas having a pressure higher than atmospheric pressure, and may be configured to be supplied by compressing surrounding air, such as a pump or a blower, or may be supplied as a container accommodated in a container such as a compressed air tank. The structure of the compressed air. The discharge portion 21 is provided to be connected to the other end portion 27b of the pipe 27. Gas is supplied from the gas supply source 24 to the discharge portion 21 via the line 27. The discharge portion 21 is provided with a discharge hole 31, and the discharge portion 21 is a nozzle device that discharges the supplied gas from the discharge hole 31. By arranging the sewing material 30 so as to cover and block the discharge hole 31, the gas can be ejected toward the sewing material 3 by the discharge portion 21. The discharge portion 21 may be configured separately from the conduit 27 or may be integrally formed. The detecting unit 22 is interposed between the gas supply source 24 and the discharge unit 2A in the line 27, and is configured to detect the amount of the state of the gas ejected from the ejecting unit 21. The amount of gas state is the amount representing the state of the gas including pressure, flow rate, and flow rate. These state quantities are enthalpy that vary with the gas ejection state. The state in which the gas is ejected changes depending on the state in which the discharge hole 31 is covered by the sewn object 3 (hereinafter, simply referred to as "covered state"). This coverage state is a function of the tension of the article 30 of the seam 1352759. Therefore, the state quantity of the gas varies depending on the tension of the sewing material. In this way, the detecting unit 22 detects the state amount of the gas that changes in response to the fluctuation of the tension depending on the tension of the sewing material. In the present embodiment, the detecting portion 22 is a pressure sensor that detects the gas pressure as the amount of the 5 gas state. As the pressure sensor, various principles and structures of the sensor can be used without particular limitation. The supply adjustment unit 23 is interposed between the gas supply source 24 and the discharge unit 21 for adjusting the amount of gas supplied from the gas supply source to the discharge unit 21. Specifically, the state of being supplied to the discharge unit 21 is adjusted such that the discharge hole 31 is not covered by the sewing material 30, in other words, in a state where the gas can be freely ejected from the discharge hole 31. The amount of the state of the gas ejected from the ejection hole 31 is made constant. In the present embodiment, the supply adjusting portion 23 is provided with a regulator 33 and a flow regulating valve 34. Regulator 33 and flow regulating valve 34 are respectively disposed on line 27. The regulator 33 as the pressure adjusting portion may also be referred to as a pressure regulating valve for adjusting the pressure on the secondary side to the set pressure. Therefore, even if the pressure on the gas supply source 24 side on the upstream side in the gas supply direction of the regulator 33 fluctuates due to the operation of the gas supply source 24 or the like, it can be prevented from being on the downstream side of the gas supply direction of the regulator 33. The pressure on the side of the discharge portion 21 is changed to 20, and the force is maintained at a constant set pressure. The set pressure can be arbitrarily set by the operator's operation. The flow rate adjusting valve 34 as the flow rate adjusting unit is disposed on the downstream side of the regulator 33 in the gas supply direction. The flow rate adjusting valve 34 is configured to adjust the opening degree of the valve, and the opening of the opening degree adjusts the flow rate of the supply and discharge of the flow rate adjusting valve 34. Therefore, the gas supply flow rate from the gas supply secretary 21 can be adjusted. Further, since the pressure is maintained by the upstream side unit 33, the supply flow rate can be changed to the flow rate adjustment. The degree is Μ, the operator can perform the operation 5 because the supply adjustment is set 91. ^ * ° Ρ 3, so that the supply to the discharge portion 10 and the flow rate can be adjusted to be fixed. If the pressure and flow rate are constant, the flow rate is also constant, thereby maintaining the plant's plant strength, flow 1 and flow rate. Thus, the amount of gas supplied from the gas supply (4) to the discharge portion 21 can be made constant by the supply adjustment portion 23. The control α p 2 5 is a calculation unit that calculates the tension of the sewing material 30 based on the amount of gas state detected by the detecting unit 2 2, and can be realized by, for example, a central processing circuit (CPU). In the present embodiment, the inspection force signal indicating the gas pressure detected by the 15 inspection portion 22 is applied to the control 卩25. The control unit 25 performs calculation and calculation based on the relationship between the pressure indicating the pressure signal and the relationship between the gas pressure and the sewing (10) which is obtained in advance by the j test or the like (hereinafter referred to as "relationship information"). The tension of the sewing material 30 is obtained. The relationship information can be stored in the storage suppression operation and read by the control unit 25. "When the notification #26疋 is used to notify the information, the information (the tension information is hereinafter referred to as "tension information") is the control unit 25 that controls the tension of the sewing material 3 calculated by the control unit 25 The signal is applied to the notification unit % so as to indicate that the information report related to the tension of the sewing material 3G is notified of the tension information according to the command. Thus, the notification unit 26 is controlled by the control unit 25 12 1352759. The tension information may be information indicating the tension, or information indicating whether the tension is greater than a preset set value, or information indicating whether the tension is within a predetermined range. The notification unit 26 is constructed to notify such tension 5 information. The notification unit 26 has a configuration such as a display unit, and can display the tension by numbers, colors, or the like, and can display whether the tension is larger than the set value or whether the tension is within the range. In this case, although a display unit capable of displaying numerals and characters can be used as in a liquid crystal display device, the configuration may be such that the display unit having one or a plurality of bulbs can be used to perform the bulb according to the tension. The replacement of lighting and extinction may change the number of lighted bulbs or change the number of lighted bulbs, or may be another structure that changes the amount of light emitted and the amount of light emitted by the light (brightness). . The notification unit 26 may be, for example, a sound output unit, and may be configured to change the volume or the timbre according to the tension. It may also be a structure that outputs a warning sound when the tension becomes greater than a predetermined threshold. The notification unit 26 may be a sensory part that allows the operator to feel the tension information. For example, the drive system of the slitting machine is used as the notification unit 26, and the tension information is reported by stopping the sewing operation. The notification unit 26 may be selectively configured by any of these specific configurations, or a plurality of types may be selectively combined to constitute the notification unit 26. Fig. 2 is a cross-sectional view for explaining the principle of measuring the tension by the measuring device 20. Fig. 3 is a graph showing an example of the relationship between the tension and the pressure 135 obtained by the correction test. degree. Fig. 3 is a view showing the relationship between the various pressures in which the sewing material 3 省略 is omitted. When the tension of the sewing material 3 缝 which is sewn by the gas and the sewing material 30 are pushed away from the discharge portion 21, when the pipe is pressed by the gas, the sewing material 30 is not as good as the first __ - the fixed value is: the smaller the tension of the sewing material 30 is, the more the position is encountered; as the second drawing is located closer to the ejection portion 21, the tension of the sewing material 3〇 is larger, 10 is small, = ΓΓ away from the ejection portion 21, the gas is more likely to eject the resistance to the ejection. On the contrary, the closer the sewing material 30 is to the ejection portion 21, the greater the resistance of the gas to the ejection, and the more difficult it is to spray; 15 20 and when the type of the sewing material 30 is different, specifically, the structure and thickness of the sewing material When the dimensions are different, the resistance when the gas passes through is different. In particular, when the sewing material 30 is a sewing material having a stretchable property and a change in the size of the woven eye (origin) and the mesh (catalog) due to the difference in tension, even the same type of sewing material is due to the tension. Different 'will also change the resistance when the gas passes through. Therefore, the resistance to the discharge, that is, the degree of difficulty in ejecting, depends not only on the position at which the sewn material 3 is in the approaching position and the opposite direction with respect to the ejecting portion 21, but also depending on the sewing material. 3 〇 species, woven eye and mesh size changes. When the easiness of ejecting changes, the state of discharge of the gas changes, and the amount of state such as the pressure of the gas to be ejected changes. Thus, the amount of the state of the gas ejected from the scooping portion 21 changes depending on factors such as the tension of the sewn material 3〇. Therefore, a calibration test is performed, and 14 1352759, as shown in Fig. 3, the relationship between the pressure and the tension as the state quantity for each type of the sewing material 30 is obtained, that is, the above information relationship is obtained, and the actual information is used for sewing. In the information relationship, the tension of the sewing material 30 is obtained by calculating the pressure of the gas. In this way, according to the measuring device 20, the gas is ejected from the ejecting unit 21 to the sewing material 30, and the detecting unit 22 detects a state quantity indicating the state of the gas, for example, a pressure. By detecting the state quantity, the control unit 25 can calculate and obtain the tension of the sewing material 30. In the measurement device 20 as described above, the discharge unit 21 may be provided in the vicinity of the position at which the tension of the sewing material 30 is to be measured, and the other main members, specifically, the detection unit 22 and the supply adjustment unit 23 may be provided. The components such as the gas supply source 24 are disposed at a remote location, and thus are rarely limited by the installation location. Further, since the sewing material 30 is held by a member such as a roller, it is not restricted by the holding and arrangement of the sewing material 30, and the tension can be measured even if the operator presses the hand with the sewing material. Further, the supply adjusting unit 23 adjusts the gas supplied from the gas supply unit 24 to the discharge unit 21 so that the state amount of the gas is kept constant. Thereby, the amount of gas state detected by the detecting unit 22 is prevented from changing due to the supply state, and the amount of the gas state is changed only by the tension of the sewing material 30, so that the tension can be measured with high precision. The tension can be automatically obtained by the control unit 25, and the notification unit 26 can report the obtained information relating to the tension of the sewing material 30 to the operator. The tension of the sewing material 30 can be easily grasped by the operator. Therefore, even if the skill of the operator does not reach a high level of proficiency, the tension of the sewing material 30 can be grasped, and the sewing operation can be performed well. 15 1352759 10 Fig. 4 is a perspective view showing the sewing machine 40 provided with the measuring device 20. Fig. 5 is a block diagram showing the configuration of the measuring device 2A. Fig. 6 is a perspective view showing the vicinity of the needle plate 41 of the sewing machine 40 in an enlarged manner. The sewing machine 4 is used to sew the second sewing material 42 (hereinafter sometimes referred to as "strip j") as a first sewing material (hereinafter referred to as "cloth blank"). j) The sewing machine on the '30' is a zigzag stitch sewing machine. In the case of a zigzag stitch sewing machine, a belt such as a lace for sewing a decorative piece of a bra. Other types of sewing machines can also be used, for example. It is used in a sewing machine in which the elastic band is sewn to the waist portion or the leg portion of the 'Yong-yin clothing. 15 The sewing machine 40 includes a sewing machine main body 47 and a measuring device 20. The sewing machine main body is in a state in which the sewing materials 30 and 42 are respectively Placed on the bottom a of the needle plate 41, the respective sewing objects 30, 42 are held by the needle plate 41 and the presser foot 43. In this shape, the main body 47 of the double slit 35 is provided with a feeding mechanism for feeding teeth (the towel is not shown) When the sewing material 3G, 42 is fed in the feeding direction A, the needle 44 is moved up and down, and the needle thread is inserted into each of the sewing objects 3, 42 and the needle is moved up and down. 49 Capture the needle thread and sew it with the bobbin to form a stitch. For each sewing article 30, 42 20 object 42 = = body 47 for the sewing material 3 〇, 42 side to the second cloth body = body 47 sewing operation, self-produced open groove, etc., with the help of J It is said that the sewing state of the sewing machine is fed to the sewing position, in particular, when the position of the singer is more on the upstream side of the feeding direction 8. The auxiliary action of this is added. When the tension on the pudding 16 changes, the size difference is generated in the product. In order to prevent the occurrence of such an accident, the tension of the rag is measured, and the measuring device 20 is set to notify the operator. The P21 is attached to the needle plate 41. The nozzle portion 21 is provided on the upstream side of the feeding direction a with respect to the needle drop position of the needle plate 41. The ejection portion 21 is above the needle plate 41. The discharge hole 31 is provided to be open upward, and the gas can be ejected toward the cloth provided on the needle plate 41. With such a configuration, the operator can near the sewing position of the blank 3 that is assisted by the hand. The tension before sewing is measured. In the case where the sewing machine is placed on the sewing machine 4, the display unit 50, the drive system 51 of the sewing machine main body 47, and the buzzer 52 can be used as the notification unit 26. Although the display unit 5〇 and the sewing machine main body 47 can be completely eliminated at this time. The drive system 51 and the buzzer 52, but one or two of them may be selectively used. The display unit 50 has a structure of a plurality of LEDs (Light Emitting Diodes). For example, five light bulbs are controlled by the control unit 25, and the number of lamps corresponding to the tension of the blank 30 is turned on, and the tension of the cloth 30 is displayed by the number of dots. A more specific example is The different switching tensions at the time of turning on and off each of the bulbs are set such that the number of lamps to be lit changes in accordance with the tension of the blank 30. In this case, a bulb of a different color may be used, that is, a bulb whose conversion tension is less than a predetermined first critical value is taken as green, and a bulb whose conversion tension exceeds the first critical value is taken as red or the like. From such a display, the operator can grasp the tension of the sewing material. 1352759 The drive train 51 of the slit machine body 47 has a drive source as a motor (the power generation transmission mechanism such as the caliper and the pulley S3, the needle 44, the syringe 49, and the sewing mechanism 54 including the feed mechanism are not shown in the figure. When the notification unit 26 is used, the drive system 51 is controlled by the control unit 25. Specifically, when the tension of the cloth (4) is less than the predetermined second threshold value, the sewing operation is allowed to be performed in accordance with another operation performed by the operator. When the tension of the cloth (10) exceeds the second critical value, the sewing operation is forcibly stopped regardless of other operations performed by the operator. Thus, the operator can feel that the sewing operation of the slitting machine main body 47 is stopped, and The drive system 51 is also a one-in-one sense unit. The buzzer 52 is a sound output unit and is controlled by the control unit 25. Specifically, when the tension of the cloth (4) is less than a predetermined third threshold value, The rotation of the warning sound is stopped; when the tension of the cloth (10) exceeds the third critical value, the warning sound is turned on. Thus, the operator can grasp the tension according to the warning sound. 15 The first 1~ The threshold values may be the same value which may be different from each other. Moreover, the display portion 56 may be a structure for displaying the tension by numerals, and the buzzer 52 may be at least any of the volume and the tone according to the tension of the cloth. A structure in which a change is made. Fig. 7 is a plan view showing the needle plate 41. Fig. 8 is a cross-sectional view taken along line %20-S8 of the seventh circle. Fig. 9 is a view showing the ejection portion. Fig. 10 is a plan view showing the second member 56. Fig. 10 is a front view showing the second member 56 of the ejection portion 21. On the needle plate, the center point C of the relative needle drop position In the upstream position of the feeding direction ,, a hole for mounting the injection portion 2] is inserted in the thickness direction of the = plate 41. The mounting hole 58 is formed. The mounting hole 58 is formed in the opposite direction. The position where the movement of the teeth does not interfere is also at a position as close as possible to the center point c of the needle drop position. The discharge portion 21 has the first and second members 55, 56. The first member has the inlay 5 The joint portion 6A and the locking portion 61 have an outer diameter smaller than the inner diameter of the mounting hole 58. The other side of the engaging portion 60 is connected to the axial direction side. The other side of the locking portion 61 in the axial direction (the fitting portion 6A) is formed into a truncated cone shape having a large diameter, and the largest diameter portion has a larger mounting ratio than the above. An outer diameter of the inner diameter of the hole 58 is large. A discharge hole 1〇31' is formed in the end portion of the first member 55 on the side of the locking portion in the axial direction. The first member 55 is provided with the discharge hole 31. The inner hole 62. The opening of the discharge hole 31 is not disposed on one side in the axial direction, and the opening of the inner hole is provided on the other side in the axial direction. On the other side portion of the axial direction of the second member 55 The second member 56 has a base portion 64 and a connecting portion 63 that is connected to one side of the base portion 64 in the axial direction. The base portion 64 has an outer diameter larger than the inner diameter of the mounting hole 58, and a rest portion 65 on which the tool rests is formed on the other side surface portion in the axial direction. The connecting portion 63 is provided with an external thread to be screwed into the second member 55. On the second member 56, a via hole 66 which is opened in the radial direction of the base portion 64 and which is opened in the axial direction on the connecting portion 63 is formed. On the base portion 64 of the second member 56, an internal thread ' is formed in a portion 80 adjacent to the passage hole 66 so that the other end portion of the pipe 27 can be screwedly connected. The discharge portion 21 is attached such that the first member 55 is disposed on the upper side of the needle plate 41. The second member 56 is disposed on the lower side of the needle plate 41, and is inserted into the state through the mounting hole 58. Both sides of the spiral direction sandwich the needle plate 41 at both sides in the up and down direction (the thickness is mounted on the needle plate 41 and the dress is on the needle plate 41. Thus, a nozzle device for constructing a gas is protruded at: 1 On the upper side, the card from the ejection orifice 31 of the sprayed member 55! The upper side portion of the ten plate 41 has only the first structure and the upper portion, so that the feeding of the cloth is not hindered, and the flaw of the object is made fine. (10) Finishing the cloth 10 15 The above-described embodiment is merely an example of the embodiment of the present invention, and the structure 疋 can be changed. For example, the gas-like amount of the heart detected by the detecting unit can be used instead of the pressure. Flow rate or flow rate; it is also possible to detect a plurality of state quantities in these state quantities. Moreover, it is possible to measure not only the tension of the cloth (4) that the operator has carried out according to the hand or the auxiliary, but also the tape 42 and the like. The tension of other sewing materials. It can also be set on the ore tooth line H-blade machine. In addition, the second member 55 and 56 constituting the discharge portion 21 may be formed such that the first member 55 is provided with an external thread, and the second member 56 is internally threaded and connected. The invention may be embodied in other ways without departing from the subject matter or main features of the invention. Therefore, all of the above-described embodiments are merely a simple example. The scope of the invention is as claimed. The scope of the invention is not limited by the scope of the invention, and any modifications or alterations within the scope of the invention are within the scope of the invention. Sewing object tension measurement of one embodiment of the invention 20 1352759 Front view of the apparatus. 2A, B is a cross-sectional view for explaining the principle of measuring the tension by the measuring device. Fig. 3 is a view showing the tension obtained by the calibration test. Relationship with stress 5
10 15 的一個例子的圖表。 第4圖是表示設有測定裝置的縫紉機的立體圖。 第5圖是表示測定裝置的結構的框圖。 第6圖是放大地表示縫幼機的針板附近的立體圖。 第7圖是表示針板的俯視圖。 第8圖是沿著第7圖的S8 — S8線來看的斷面圖。 第9圖是表示喷嘴部的第1構件的正視圖。 第10圖是表示第1構件的俯視圖。 第11圖是表示噴嘴部的第2構件的正視圖。 第12圖是將作爲現有技術的伸縮布帶給料機簡化地表 示的概要圖。 【主要元件符號說明】A chart of an example of 10 15 . Fig. 4 is a perspective view showing a sewing machine provided with a measuring device. Fig. 5 is a block diagram showing the configuration of a measuring device. Fig. 6 is a perspective view showing the vicinity of the needle plate of the slitting machine in an enlarged manner. Fig. 7 is a plan view showing the needle plate. Figure 8 is a cross-sectional view taken along the line S8 - S8 of Figure 7. Fig. 9 is a front elevational view showing the first member of the nozzle portion. Fig. 10 is a plan view showing the first member. Fig. 11 is a front elevational view showing the second member of the nozzle portion. Fig. 12 is a schematic view showing a simplified embodiment of a stretchable tape feeder as a prior art. [Main component symbol description]
1···伸縮布帶給料機 2…伸縮布帶 3…驅動輥 4…布帶卷 5…導引件 7…檢測臂 8…感測器 9…控制部 10…電動機 20…縫製物張力測定裝置 21…噴出部 22…檢測部 23…調整部 24…氣體供給源 25…控制部 26…報知部 21 1352759 27…管路 50…顯示部 27a…端部 51…驅動系 27b…端部 52···蜂鳴器 30…縫製物 53…皮帶輪 31…排出孔 54···縫製機構 33…調節器 55…第1構件 34…流量調整閥 56…第2構件 35…存儲部 56···顯示部 40…縫紉機 58…安裝用孔 41…針板 60…彼合部 42…縫製物 61—^止部 43…壓腳 62…内孔 44…針 63…連接部 47…縫紉機主體 64…基部 48…供給裝置 65…搁置部 49…針筒 66···通路孔 221···Retractable tape feeder 2...Retractable tape 3...Drive roller 4...Wire roll 5...Guide 7...Detector arm 8...Sensor 9...Control unit 10...Motor 20...Sewing tension measurement Device 21...spraying unit 22...detecting unit 23...adjusting unit 24...gas supply source 25...control unit 26...notifying unit 21 1352759 27...line 50...display unit 27a...end 51...drive system 27b...end 52· - buzzer 30...sewing material 53...pulley 31...discharge hole 54···screw mechanism 33...regulator 55...first member 34...flow regulating valve 56...second member 35...storage unit 56···display 40: sewing machine 58... mounting hole 41... needle plate 60... fitting portion 42... sewing material 61--stop portion 43... presser foot 62... inner hole 44... needle 63... connecting portion 47... sewing machine main body 64... base portion 48 ...supply device 65...storing portion 49...synchronous cylinder 66···via hole 22