經濟部中央棣準局負工消费合作社印装 A7 B7 五、發明説明（1 ) 本發明係有關一種操作百葉窗的控制器。尤其是，本 發明指一種關於能將操作拉繩或鏈條包封在一控制把手 內，使直式百葉窗相對於一開口，易於控制的百葉窗控制 器系統。 直式百葉窗可供遮蔽窗戶和門的開口，以便阻隔光線 並保持隱私。葉片式百葉窗是由若干葉片或葉板所構成， 各該葉片均可獨立地繞著一個轉軸旋轉而將百葉窗開啓 及閉合。通常，是利用一個接裝在一齒輪機構上之握桿的 旋動，或是拉動一條與一齒輪機構嚙合的鏈條，藉以控制 讓該等葉片旋轉。 如爲吊掛的直式葉片的百葉窗，將葉片移動到開口的 —邊，即可開啓與閉合這百葉窗。這動作的控制係藉由拉 動一條接裝到一機構上的拉繩，或藉由沿著接裝在百葉窗 上軌處的一條軌條，實際拉動該等葉片。若爲橫式葉片的 百葉窗，則有一條拉繩接裝至一機構並由該機構予以嚙 合，只要拉動這拉繩而將葉片鎖定在所欲的高度，即可使 百葉窗升降。 習用百葉窗所設的一條套環式拉繩，具有二個繩段。 該等繩段係接裝在百葉窗裡的一個機構上，以便促使葉片 移動，同時任一繩段均可被拉動而選擇性開啓或閉合百葉 窗的葉片。在另一百葉窗設計裡，則可拉動任一繩段而可 選擇性地將百葉窗在整個開口上開啓或閉合。 該等套環式拉繩係從百葉窗的一邊自由懸垂而下，至 於該套環式拉繩的所需長度，則視該開口的幅寬而決定。 4 本紙張尺度適用中國國家揉率（CNS ) A4规格（210><297公釐） (請先閲讀背面之注意事項再填寫本頁) -裝· 訂 經濟部中央樣準扃負工消费合作社印装 A7 __B7___ 五、發明説明（2 ) 大型開口所用的百葉窗需要一條延伸至地板的套環式拉 繩，因而對小孩的安全恐有造成危害之虞。因爲這種危害， 所以曾有人設法消除百葉窗的套環式拉繩。 在直式葉片百葉窗的一種設計裡，是以一支握桿來控 制葉片的旋轉，再用手控方式將葉片拉動越過整個開口， 以便將百葉窗閉合。雖然這種百葉窗未設有套環式拉繩， 但卻需要吾人橫越整個開口去將這百葉窗開啓或閉合。若 是有傢倶或其它擺設擋住窗戶或門的開口時，便難以進行 這種作業。 另一種曾試圖消除百葉窗之套環式拉繩的構想，是加 設一具電動驅動機構，以供選擇性地操作百葉窗及個別的 葉片。然而，這電動機構會實質上大幅增加百葉窗的成本， 同時也會增加恐有故障之虞的機械組件數。 在頒給Biba等人的第5,472,035號美國專利（1995 年）揭示了一種百葉窗構想，其中在一縱向通道內設有一 長桿，而這通道更沿著該長桿的一側設有一條開敞槽孔， 以便那些與長桿有關的組件能縱向移動。然而，這槽孔會 使長桿的強度大幅減弱，因而需另外增加其它的材料補 強。此外，在頒給Biba等人的第5,465,775號美國專利 ( 1995年）所公開的另一設計裡，揭示了有一個無端拉繩 操作的套環，並有若干升降繩與這套環相接。雖然這些構 想都是把一條拉繩置於一長桿內，但該等構想需用到許多 操作機件，製造昂貴，所以不適用於直式百葉窗。 是以，需要一種能將百葉窗之操作拉繩予以包封的直 5 本紙張尺度適用中國國家標準（CNS ) A4规格（210X 297公釐） I I I I I -裝 I I I I I 訂—— I I I 1^ (請先閱讀背面之注意事項再填寫本頁) A7 B7 五、發明説明（3 ) 式百葉窗改良系統。同時這系統應易於製造和使用。 本發明是對窗戶或門等開口，提供一種能使直式百葉 窗之葉片移動的改良裝置。本發明包括一條可經由操作而 選擇性输送該等葉片橫向越過該開口的拉繩，而該拉繩則 設有接合在一套環端內的第一及第二繩段。有個旋動機構 能使各該葉片旋轉，且這機構還設有一個可供第一和第二 繩段通過的開口》有支固定桿可將拉繩套環固設在一個與 旋動機構有關的固定縱向位置，另有個拉繩鎖能選擇性鎖 固第一或第二繩段。這拉繩鎖接裝了一支能與旋動機構進 行相對運動的把手，以便拉動第一或第二繩段其中一個， 使該等葉片能移動而橫向越過所述之開口。 在本發明的另一具體實施例中，有支橫楣可供支承葉 片，有個筒形機構設有一個可供第一和第二繩段穿過的孔 口，另有支固定桿以其第一端配合該橫楣而固定，並以第 二端將拉繩套環固定在一個與橫楣有關的縱向位置。還有 支把手能與筒形機構進行相對的往復運動，該把手係被接 裝在拉繩鎖上，以供選擇性拉動第一或第二繩段。 圖式簡要說明： 圖1所示者係本發明在一最初位置的剖面正視圖。 經濟部中央橾準局貝工消費合作社印製 (請先《讀背面之注意事項再填寫本頁) 圖2所示者係本發明在把手已***作後而使百葉窗之 葉片移動後的剖面圖。 圖3所示者係一可選擇性與拉繩嚙合之控制器的剖面 正視圖。 圖4所示者係這控制器的剖視平面圖》 6 本紙張尺度適用中國國家橾準（CNS ) A4规格（210X297公釐） 經濟部中央標準局員工消費合作社印製 五、發明説明（A ) 圖5所示者係一可讓下外殻返回到把手處之彈簧的部 份剖面圖。 圖6所示者係本發明的另一替代實施例示意圖。 圖7所示者係本發明的又一替代實施例示意圖。 圖8所示者係一具有橫式葉片的百葉窗示意圖。 圖9所示者係另一種可供選擇性夾住套環式拉繩一端 的扣緊器示意圖。 圖10所示者係一接裝到一把手上，以供把套環式拉 繩超長部份予以捲收的捲取軸示意圖。 圖1 1所示者係本發明的一種實施例示意圖，顯示出 有一把手可跟一旋動機構進行相對運動。 圖1 2所示者係本發明的另一種實施例示意圖，其中 有一把手可跟一筒形機構進行相對往復運動，而第一及第 二繩段則被包封在這把手及筒形機構內。 圖1 3所示者係本發明的另一實施例示意圖，其中橫 楣是將葉片支承於開口鄰接處的一個位置。 本發明係指一種可對外露套環式拉繩所造成之潛在 危險加以消除的改良式百葉窗。此處所用的術語「拉繩」 意指可供操作一機構的一條線繩、鏈條、繩索、金屬線、 或其它軟質線。請參閱圖1，百葉窗10通常是由若干葉板 或葉片1 2，上軌1 4和控制機構1 6所組成。所示之葉片1 2 係屬於直式，但在本發明如後所揭示的其它具體實施例 中，亦可作成橫式。百葉窗1 0的位置是設在一扇窗戶或 門的開口處（未顯示）附近，其設置的目的，係以便阻斷 光線或空氣的通過。上軌14 一般是裝設在窗戶開口的頂 部，以便葉片能懸吊在上軌14的下方。 7 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X29"?公釐） (請先閲讀背面之注意事項再填寫本頁) -β 經濟部中央橾準局貝工消费合作社印裝 A7 B7 五、發明説明（5 ) 葉片旋動機構18是裝設於上軌14處，並包括螺旋式 的蝸桿齒輪20及傳動齒輪22。蝸桿齒輪20利用關節式接 頭26與把手24嚙合。當把手24繞著其縱軸旋轉時，亦會 同時旋動蝸桿齒輪20與嚙合的傳動齒輪22。傳動齒輪22 又與葉片承載架28嚙合，以便使各葉片12能繞著各葉片 12本身的縱軸旋轉。此種旋轉可控制若干葉片12，因而 開啓與閉合百葉窗10。 閉合機構30可操動而將葉片12運送越過該窗戶開 口，以便讓這些葉片12遮覆整個窗戶開口。如圖1所示， 閉合機構30可操動而使若干葉片12沿著上軌14橫向地移 動。藉著控制一條設有開啓繩段34和閉合繩段36的套環 式拉繩32，即可操動這閉合機構30。當往下拉動開啓繩 段34時，閉合機構30便使葉片12移向窗戶開口的一邊。 當拉動閉合繩段36時，閉合機構30就使葉片12越過窗戶 開口，以致旋動葉片12便能將百葉窗10閉合。 在習用的百葉窗中，諸如套環式拉繩32之類的拉繩， 都是自由地從上軌懸垂下來，因而恐有危害安全的疑慮。 如圖1所示，本發明的實施例係將拉繩32包封在把手24裡 面，因而消除了這問題。結果，拉繩32的套環端被包封住， 不會對位在百葉窗10旁邊的人顯露。在本發明的一較佳實 施例中，拉繩32還穿越過蝸桿齒輪20的孔口 37。這種方 式使蝸桿齒輪20的旋轉與拉繩32不發生關連，並進一步 使拉繩32的動作與蝸桿齒輪20不發生關連。 如圖1所示，把手24顯示具有一個上外殼38與一個下 8 本紙張尺度適用中國國家標準（CNS ) A4规格（2丨〇><297公釐） 丨裝 訂 沐 (請先閲讀背面之注意事項再填寫本頁) 經濟部中央橾準局員工消费合作杜印製 A7 B7 五、發明説明（6 ) 外殻40。拉繩32係繞著樞軸42形成套環。下外殼40是以 圖1所示的一個最初位置作爲起點，並可如圖2所示的往下 拉動，以便選擇性地的拉動拉繩32來操作閉合機構30。 將下外殻40連接到上外殻38的彈簧44，可在施加於下外 殻40的拉力被釋除後，促使下外殻40返回到最初位置。 與下外殻40嚙合的控制器或扣緊器46，則可選擇性的扣 住開啓繩段34或閉合繩段36。 請參閱圖3和4，所示者係扣緊器46的一具體實施 例。該扣緊器46包括設有左室50和右室52的本體48，其 中左室50配備固定滾輪54和行進滾輪56，右室亦配固定 滾輪58和行進滾輪60。拉繩32的開啓繩段34是從固定滾 輪5 4和行進滾輪5 6的附近通過，閉合繩段36則從固定滾 輪58和行進滾輪60的附近通過。該等固定滾輪和行進滾 輪之間的空隙應足以容許拉繩32自由通過兩者之間，但在 一本發明之較佳具體實施例中也應小得足以讓該等滾輪 及拉繩32之間稍微產生一些摩擦。 有個開關62穿越過左室50和右室52,並在扣緊器46 的任一邊延伸。如圖1之實施例所示，這開關62包括左叉 形部64和右叉形部66。當開關62如圖3所示的向右移動 時，左叉形部64即干擾左行進滾輪56。當下外殻40和接 裝的扣緊物46相對於把手24而向下移動時，右行進滾輪 60便相對於扣緊物46而向上移動，將拉繩32的閉合繩段 36夾緊使其抵住右固定滾輪58。此舉會將拉繩32的閉合 繩段36往下拉，讓整個窗戶開口的葉片12閉合。等施加 9 本紙張尺度遗用中國國家橾準（CNS ) A4規格（210X297公釐） J 丨裝 訂 冰 (請先閲讀背面之注意事項再填寫本頁) 經濟部中央橾準局貝工消费合作杜印«. A7 B7 五、發明説明（7 ) 於下外殻40的下拉力被釋除時，詳見如圖5所示的彈簧44 會使下外殻40返回到如圖1所示的最初位置。 如欲開啓百葉窗10，是將開關62向左移動，屆時右 叉形部66即干擾右行進滾輪60，而往下拉動下外殻40， 會使左行進滾輪56夾緊拉繩32的開啓繩段34並抵住左固 定滾輪54。當下外殻40繼續向下移動時，便會拉動開啓 繩段34，使葉片12從窗戶開口處退回，因而讓百葉窗1〇 開啓。 在本發明如前所掲示的具體實施例中，上外殻38及下 外殻40係各自獨立運作去完成所要求的功能》上外殻38 可被旋動而使葉片12旋轉，而下外殼40則可***作而使 葉片12移動越過窗戶開口。這些特點的獨特結合使上外殻 38在旋轉時，不會讓包封於其內的拉繩32糾結》 雖然圖示的扣緊器46被敘述爲是一個機械式的開關 裝置，但在本發明的範圍對扣緊器可有許多不同的構造和 實施例。扣緊器46所執行的功能是選擇性嚙合套環式拉繩 32的開啓繩段34或閉合繩段36。關於這功能，可用種種 不同的設計及構造來達成。 所示的下外殻40比上外殼38略小，並以彈簧44接裝 於其上。但應瞭解的是，在本發明的範圍內，上外殼38 及下外殼40可採用種種不同的組態。例如，下外殻40的 直徑可以大於上外殻38。如圖6所示，下外殻68實質上是 由把手70的全長構成。在這實施例中的一種變化，下外殻 68可包括若干能與控制機構74嚙合的齒叉72。當這些齒 10 本紙張尺度適用中國國家橾準（CNS ) A4说格（210X297公釐） ----------裝------訂------k (請先W讀背面之注意事項再填寫本頁) 經濟部中央標準局貝工消费合作杜印製 A7 B7 五、發明説明（8 ) 叉72與控制機構74噛合時，下外殻68—旋轉，便會同時 帶動控制機構74旋轉，從而讓葉片12跟著旋轉》即可將 下外殻68向下拉動，以便如同前所揭示般的選擇性操控拉 繩32。如圖6所示，可把扣緊器76連接到下外殻68的底 端，以便易於接近這扣緊器76。 在圖7所示的本發明另一實施例中，把手78可跟如圖 1和2所示的控制機構16嚙合，而拉繩32的套環則可被切 斷開啓繩段34與閉合繩段36的未固定端頭。左握桿80是 接裝在拉繩的開啓繩段34，而右握桿82則接裝在拉繩的 閉合繩段3 6 »向下拉動左握桿80，即可促使葉片12移動 而將百葉窗10開啓，反之往下拉動右握桿82，則可促使 葉片12移動而將百葉窗10閉合。左握桿80及右握桿82的 上端均被包封在把手78內，因而當操作握桿80和82時， 拉繩的開啓繩段34與閉合繩段36絕不會顯露。如前所揭 示者，開啓及閉合繩段34和36最好穿過齒輪20的孔口 3 7° 雖然本發明是以直式葉片12的操作來予以說明，但本 發明同樣可對橫式葉片來進行操作。如圖8所示，拉繩84 的操作可讓葉片12相對於上軌14進行上下移動。與旋轉 機構88嚙合的握桿86可被旋轉，而以可旋轉方式使葉片 12開啓與閉合。包封在把手90內的拉繩84亦可被拉動而 使葉片12上升和下降。在本發明的一個替代實施例中，可 將拉繩84接至葉片旋轉機構88，因而在操作拉繩84時， 即可旋動葉片12而將百葉窗開啓，反之操作拉繩握桿86 11 本紙張尺度適用中國國家橾準（CNS ) Α4規格（210X 297公釐） ----------裝------訂------'紙 (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局貝工消費合作社印笨 A7 B7 五、發明説明（9 ) 時，亦可旋動葉片12而使百葉窗閉合。由於把手90所發 揮的功能與握桿86不發生關連，所以用本發明能輕易達成 這些功能的可逆向性。 圖9所示者，係顯示扣緊機構的另一替代實施例》如 圖9所示，扣緊器外殼92是被包封在把手94內，並有一支 手桿96從把手94的凹槽98穿越伸出》這手桿96可在扣緊 器外殼92內橫向移動，以便選擇性夾住套環式拉繩32的 開啓繩段34或閉合繩段36。 在本發明的另一實施例中，可設置一具捲取軸或捲線 軸以便捲收套環式拉繩32。如圖10所示，這捲取軸100 是設在把手102的下端，俾可將套環式拉繩32在把手102 下方延伸的任何部份予以捲收。也可將把手104接裝到捲 取軸100上，以便捲取軸100易於進行其作業。在這實施 例的另一變化中，可讓捲取軸朝著某一方向旋轉而將葉片 12開啓，另可朝相反方向旋轉而將葉片12閉合。 圖11所示者係本發明的一種實施例示意圖，其中拉繩 106具有以套環端112爲終點的第一繩段108及第二繩段 110。旋動機構114設有握柄116和齒輪箱118，並有一 個可讓第一繩段108和第二繩段110穿越其間的開孔 120。旋動機構114的旋轉係與齒輪箱118配合，以便各 葉片能繞著一條與前述開口保持平行的軸線樞轉。把手 122位在旋動機構114的下方，以便發揮容後再述之目 的。固定桿124的上端係配合旋動機構114而縱向固定， 下端則將套環端112固定在一個與旋動機構114有關的縱 12 本紙張尺度適用中國國家揉率（CNS ) A4规格（210X297公簸） (請先W讀背面之注意事項再填寫本頁) -裝· 訂 經濟部中央標準局貝工消费合作社印製 A7 B7__ 五、發明説明（10) 向位置。有個止擋126被接裝在固定桿124上，或可跟這 固定桿124 —體成型，以供發揮容後再述之目的。固定桿 124可以包含一個方形構件，或可以是三角形、圓筒形、 橢圓形、圓形或其它各種形狀。止擋126則可包含一種簡 單的插銷，或可包含如後所述的一種切換機構。 拉繩鎖128係被接裝在把手122上，以供夾住或以其 它方式卡住拉繩106，且這拉繩鎖能隨著把手122—起與 旋動機構114進行相對運動。當拉繩鎖128扣緊第一繩段 108時，若向下移動把手122及拉繩鎖128,第一繩段108 即會被拉動而使葉片相對於開口進行橫向移動。 當第一繩rf/l〇8被把手122及拉繩鎖128的向下移動 而拉動時，拉繩106就會使葉片移動離開開口，以致開啓 百葉窗，讓這開口不被遮蔽。拉繩鎖128可經由操作而釋 放第一繩段108，這時可向上扳動把手122，拉繩鎖128 即可再卡住第一繩段108，然後可再向下扳動把手122， 以便繼續讓拉繩106移動，以致使百葉窗開啓。 如欲使拉繩106的移動方向反過來，便可將把手122 向上扳動，使拉繩鎖128接觸止擋126，從而致使拉繩鎖 128釋放第一繩段108，改爲夾住第二繩段110。以此種 方式，拉繩鎖128及止擋126便互相配合形成一個切換開 關，促使拉繩鎖128交替夾住第一繩段108或第二繩段 110。隨後向下扳動把手122，即可拉動第二繩段110， 讓葉片朝著與先前動作相反的方向橫向越過開口，以致使 百葉窗將這整個開口閉合起來。接著可讓拉繩鎖128接觸 13 本纸張尺度適用中國國家梯準（CNS)A4规格（2丨0X297公釐） I I I I I I . I I I I I 訂 (請先聞讀背面之注意事項再填寫本頁) 經濟部中央搮準局貞工消费合作杜印製 A7 B7__ 五、發明説明（11 ) 止擋126，釋放第二繩段110，改爲夾住第一繩段108 ’ 以便重複進行這種作業週期。 雖然所示的拉繩鎖128是個與止擋126接觸後即可操 動的壓敏開關，但這拉繩鎖128的形狀也可採用其它圖式 中所示的切換開關，或可採用其它形狀的結構。拉繩鎖128 的作用是在不妨礙筒形機構136之操作的條件下，選擇性 扣緊第一繩段108或第二繩段110。 圖12所示者係本發明的另一種實施例示意圖，其中橫 楣130係將葉片支承在一個與開口鄰近的位置。拉繩106 有一部份被包含在橫楣130內，套環端112則直式吊掛在 橫楣130的下方。該套環端112係與設在固定桿134下端 的滑輪132接合。筒形機構136的功能與旋動機構114類 似，其形狀大體是個圓筒體，設有一個中空中心或孔口 137，以便讓第一繩段108和第二繩段110穿越其間。此 外，筒形機構136可設握持表面138。所示之把手140是 個可往復***筒形機構136之中空中心內的圓柱。這把手 140可在本身的下端設一握柄141，以便讓使用者易於操 作該把手140，並限制該把手140在筒形機構136之中空 中心內的行程。 所示之固定桿134是個具有上或第一端142以及下或 第二端144的構件。第一端142係被接裝到橫楣130，第 二端144則自由懸垂並被接裝到滑輪146上。拉繩鎖148 可被接裝到把手14β上，且其構造可形成如前述一般地交 替夾住第一繩段108或第二繩段110。圖12所示之拉繩鎖 14 本紙張尺度遑用中國國家橾率（CNS ) Α4规格（21〇Χ：297公釐） ----------裝------訂------4 (請先閲讀背面之注$項再填寫本頁) 經濟部中央標準局貞工消费合作社印製 A7 _B7___ 五、發明説明（12 ) 148係夾住第一繩段108。向下拉動把手140時，拉繩106 與滑輪146接觸的部份便會跟滑輪146進行相對運動，而 第一繩段108相對於橫楣130，也會被向下拉動。以此種 方式，第一繩段108便會讓葉片橫向移動越過整個開口’ 使百葉窗開啓，以致該等葉片不會遮蔽開口》接著拉繩鎖 148可將第一繩段108釋放，以致使把手140上升，屆時 拉繩鎖148可再夾住第一繩段108，以便在把手140下降 時，可讓第一繩段108朝相同方向移動。 把手140可被上升，以便讓止擋149接觸拉繩鎖 148。這止擋149可包括在固定桿134的一部份，或可包 括一個單獨的切換機構，以便如前述般地與拉繩鎖14 8配 合運作。止擋149與拉繩鎖148接合時，就可操作該拉繩 鎖148而釋放第一繩段108，改爲夾住第二繩段11〇。接 著，可向下移動把手140，以便拉動第二繩段11〇，致使 葉片朝著與先前行進方向相反的方向移動越過開口，將百 葉窗閉合。只要讓拉繩鎖148抵住止擋149，使這拉繩鎖 148釋放第二繩段110並改爲夾住第一繩段108，可重複 進行這過程。 . *在不違反本發明之構想的範圍內，拉繩鎖的構造可以 採用許許多多的形態。例如，拉繩鎖148可被裝配成以各 種不同的方式發揮功能。在本發明的一實施例中，只要對 拉繩鎖148加以旋動，即可將其釋放並重新夾住第一繩段 108和第二繩段110。至於這種旋動，則可用固定桿140 的軸向往復運動，或讓這固定桿134相對於把手140進行 15 本紙張尺度逋用中國國家揉準（CNS ) A4规格（210X297公釐） ---------.裝------訂------i (請先閱讀背面之注意事項再填寫本頁) A7 ____B7 五、發明説明（13 ) 軸向運動而達成。在本發明的另一實施例中，可將拉繩鎖 設成僅用一種簡單的撥動開關予以手動操作。雖然把手、 固定桿和拉繩鎖的組合，能在不違反本發明之精神的情況 下具有許多不同的組態，但該等組件的配合運作原則在於 能選擇性和交替操控第一繩段108及第二繩段110，致使 葉片移動。 經濟部中央標隼局貝工消费合作社印装 ^^1- ^^—mv ^^^1 I 1^1 m ^—^1· 0¾-一s (請先閱讀背面之注意事項再填寫本頁) 圖13所示者係本發明的另一實施例示意圖，其中橫楣 130是將葉片支承於開口鄰接處的一個位置。拉繩106貝 有一部份被容置在這橫楣130內，而拉繩套環端1 12則懸 垂在橫楣130的下方》該拉繩套環端112係與自由懸垂的 滑輪132相接合。滑輪132的下方則接裝一個重物151， 以便對拉繩106提供額外的拉力，使第一繩段108和第二 繩段110被拉直。這重物151也是從任一阻擋處自由懸垂 下來，以便在向下拉動把手140時，這重物151能使繩段 108和110不互相交叉糾結。在另一較佳之實施例中，則 是用彈簧161或任何彈性裝置來取代這重物，該彈簧161 的一端係被接裝到滑輪1 3 2上，另一端則被接裝到把手 140的下部。筒形機構136具有與旋動機構114相似的功 能，且在形狀上設計成能圍住一個拉繩鎖固裝置和形成可 供第一繩段108和第二繩段110穿越過的中空區。這筒形 機構136可設有握持表面138。把手140則可以是半筒形 或半圓形，或部份開敞和部份筒形的圓柱體，以便能*** 筒形機構136的中空中心內。這把手140另可在本身的下 端設一握柄141，以便使用者易於操作該把手140 ’並限 16 本紙張尺度適用中國國家橾率（CNS)A4规格（210x297公漦） 經濟部中央橾率局負工消费合作社印製 A7 _B7__ 五、發明説明（14 ) 制該把手140在筒形機構136之中空中心內的行程，而彈 簧161更可在其拉力允許拉伸的距離內，進一步限制把手 1 40的行程。 如圖13所示，可將換向開關172接裝到把手140上， 並於把手140內延伸至拉繩鎖148處，該換向開關140可 以是片板片，一支半圓柱形的彎桿，一支全圓柱形的管件 或能以任何方式從把手140抵達拉繩鎖148的其它任何適 用物件，另有一個外部切換機構182,其形式可以是環形， 齒輪似的碟形，鈕扣形，或能讓人用手操作的任何形式。 換向開關172的頂部還設有內部觸發器192，等外部切換 機構182被促動時，這觸發器192便會進到拉繩鎖148裡 面。反之，等外部切換機構182不被促動時，內部觸發器 192便會阻擋拉繩鎖148，使其不能卡住第一繩段108或 第二繩段110。利用此種方法，拉繩鎖148便可卡住其中 一個繩段，例如第一繩段108，是以拉動把手140時，便 能讓葉片朝某一方向移動越過開口，等到不促動外部切換 機構182時，又能使拉繩鎖148卡住另一繩段110，是以 讓葉片朝著另一方向移動。 以上所揭示的各種實施例，僅用以說明本發明而已， 非用以限制本發明之範圍。舉凡熟悉本項技藝之人士所易 於推知者，在不違反本發明精神所從事的任何修改和變 化，俱屬本發明申請專利範疇。 17 本紙張尺度適用中國國家橾率（CNS ) A4规格（210X297公釐） ----------裝------訂 沐 (請先閲讀背面之注$項再填寫本頁)Printed by the Ministry of Economic Affairs, Central Bureau of Preservation and Consumer Cooperatives A7 B7 V. Description of the invention (1) The present invention relates to a controller for operating blinds. In particular, the present invention refers to a louver controller system that can enclose an operating rope or chain in a control handle so that a straight louver is easy to control relative to an opening. Straight blinds cover the openings of windows and doors to block light and maintain privacy. The vane shutter is composed of several vanes or vanes, each of which can independently rotate around a rotating shaft to open and close the shutter. Usually, the rotation of a grip attached to a gear mechanism is used, or a chain engaged with a gear mechanism is pulled to control the rotation of the blades. For blinds with straight blades hanging, move the blades to the side of the opening to open and close the blinds. The control of this action is by actually pulling the blades by pulling a pull cord attached to a mechanism, or by following a rail attached to the upper rail of the blind. In the case of a louver with horizontal blades, a pull rope is attached to a mechanism and engaged by the mechanism. As long as the pull rope is pulled to lock the blade at the desired height, the louver can be raised and lowered. A loop type pull rope provided by the conventional blinds has two rope sections. The rope segments are attached to a mechanism in the louver to facilitate the movement of the blade, and at the same time, any rope segment can be pulled to selectively open or close the blade of the louver. In another louver design, either rope segment can be pulled to selectively open or close the louver over the entire opening. The loop-type pull ropes hang freely from one side of the blind, and the required length of the loop-type pull rope depends on the width of the opening. 4 This paper scale is suitable for China National Crushing Rate (CNS) A4 specification (210 > < 297mm) (please read the precautions on the back before filling this page) Printed A7 __B7___ V. Description of the invention (2) The blinds used for large openings need a loop-type pull cord that extends to the floor, which may cause harm to the safety of children. Because of this hazard, some people tried to eliminate the loop-type drawstring of the blinds. In one design of a straight-blade shutter, a blade is used to control the rotation of the blade, and then the blade is pulled across the entire opening by hand to close the shutter. Although this blind is not provided with a loop-type pull cord, it is necessary for us to traverse the entire opening to open or close the blind. It is difficult to do this kind of work if there is a home or other decoration blocking the opening of the window or door. Another concept that has tried to eliminate the loop-type drawstring of the blinds is to add an electric drive mechanism for the selective operation of the blinds and individual blades. However, this motor-driven mechanism will substantially increase the cost of blinds, and it will also increase the number of mechanical components that may be at risk. U.S. Patent No. 5,472,035 (1995) to Biba et al. Discloses a blind design in which a long rod is provided in a longitudinal channel, and the channel is further provided with an opening along one side of the long rod Slot holes so that those components related to the long rod can move longitudinally. However, this slot will greatly reduce the strength of the long rod, so additional materials are needed to reinforce it. In addition, another design disclosed in U.S. Patent No. 5,465,775 (1995) issued to Biba et al. Disclosed a loop with an endless rope operation, and a number of lifting ropes connected to the loop. Although these concepts all put a drawstring in a long rod, they require many operating parts and are expensive to manufacture, so they are not suitable for straight blinds. Therefore, there is a need for a straight 5 piece of paper that can cover the operating rope of the blinds. The paper standard is applicable to the Chinese National Standard (CNS) A4 specification (210X 297mm) IIIII-Pack IIIII Order-III 1 ^ (please read first (Notes on the back and then fill in this page) A7 B7 Fifth, the description of invention (3) improved system of blinds. At the same time, the system should be easy to manufacture and use. The present invention provides an improved device capable of moving the blades of straight blinds for openings such as windows or doors. The present invention includes a drawstring that can be operated to selectively transport the blades laterally across the opening, and the drawstring is provided with first and second rope segments that engage within a set of loop ends. There is a rotating mechanism that can rotate each blade, and this mechanism also has an opening through which the first and second rope segments can pass. There is a fixed rod to fix the pull ring to a rotating mechanism Regarding the fixed longitudinal position, there is another drawstring lock that can selectively lock the first or second rope segment. The cable lock is attached with a handle capable of relative movement with the rotating mechanism, so as to pull one of the first or second rope segments, so that the blades can move laterally across the opening. In another specific embodiment of the present invention, there is a branch lintel to support the blades, a cylindrical mechanism is provided with an opening through which the first and second rope segments can pass, and a supporting rod is used to support the blade The first end is fixed with the transverse lintel, and the second end is used to fix the drawstring collar at a longitudinal position related to the transverse lintel. There is also a handle capable of reciprocating relative to the barrel mechanism. The handle is attached to the drawstring lock for selectively pulling the first or second rope section. Brief description of the drawings: Figure 1 shows a sectional front view of the invention in an initial position. Printed by the Beigong Consumer Cooperative of the Central Bureau of Economic Affairs of the Ministry of Economic Affairs (please read "Notes on the back and then fill in this page"). . Figure 3 is a cross-sectional front view of a controller that can be selectively engaged with the drawstring. The controller shown in Figure 4 is a sectional plan view of the controller. 6 This paper scale is applicable to China National Standard (CNS) A4 (210X297 mm). Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs. 5. Description of Invention (A) Figure 5 is a partial cross-sectional view of a spring that returns the lower housing to the handle. Figure 6 is a schematic diagram of another alternative embodiment of the present invention. Figure 7 is a schematic diagram of another alternative embodiment of the present invention. Figure 8 is a schematic diagram of a louver with horizontal blades. Figure 9 is a schematic diagram of another type of fastener that can selectively clamp one end of a loop type pull cord. Figure 10 shows a schematic view of a take-up shaft that is attached to a hand for rewinding the extra-long part of the loop type drawstring. Figure 11 is a schematic diagram of an embodiment of the present invention, showing that a handle can be moved relative to a rotating mechanism. Figure 12 shows a schematic diagram of another embodiment of the present invention, in which a handle can relatively reciprocate with a cylindrical mechanism, and the first and second rope segments are enclosed in the handle and the cylindrical mechanism . Fig. 13 shows a schematic view of another embodiment of the present invention, in which the lintel supports the blade at a position adjacent to the opening. The present invention refers to an improved blind that can eliminate the potential danger caused by the exposed loop type drawstring. The term "pulling rope" as used herein means a rope, chain, rope, metal wire, or other soft wire that can operate a mechanism. Referring to Fig. 1, the louver 10 is usually composed of a plurality of blades or blades 12, an upper rail 14 and a control mechanism 16. The blade 12 shown is of the straight type, but in other specific embodiments of the invention as disclosed later, it can also be made in the horizontal type. The position of the blinds 10 is located near the opening (not shown) of a window or door. Its purpose is to block the passage of light or air. The upper rail 14 is generally installed at the top of the window opening so that the blades can be suspended under the upper rail 14. 7 This paper scale is applicable to the Chinese National Standard (CNS) Α4 specification (210X29 "? Mm) (please read the precautions on the back before filling out this page) -β Printed by the Ministry of Economic Affairs Central Bureau of Industry and Commerce Cooperative Cooperative A7 B7 5 Description of the invention (5) The blade rotating mechanism 18 is installed at the upper rail 14 and includes a spiral worm gear 20 and a transmission gear 22. The worm gear 20 is engaged with the handle 24 using an articulated joint 26. When the handle 24 rotates around its longitudinal axis, it also rotates the worm gear 20 and the meshed transmission gear 22 at the same time. The transmission gear 22 is again meshed with the blade carrier 28 so that each blade 12 can rotate about the longitudinal axis of each blade 12 itself. This rotation can control several blades 12, thus opening and closing the shutters 10. The closing mechanism 30 is operable to transport the blades 12 across the window opening so that the blades 12 cover the entire window opening. As shown in FIG. 1, the closing mechanism 30 is operable to move the blades 12 laterally along the upper rail 14. The closing mechanism 30 can be operated by controlling a loop type pull rope 32 provided with an opening rope section 34 and a closing rope section 36. When the opening section 34 is pulled down, the closing mechanism 30 moves the blade 12 toward the opening side of the window. When the closing rope segment 36 is pulled, the closing mechanism 30 causes the blade 12 to cross the window opening, so that rotating the blade 12 can close the shutter 10. In conventional blinds, drawstrings such as loop-type drawstrings 32 hang freely from the upper rail, and there is a fear of endangering safety. As shown in FIG. 1, the embodiment of the present invention encloses the drawstring 32 inside the handle 24, thereby eliminating this problem. As a result, the loop end of the drawstring 32 is enclosed, and it is not exposed to the person who is positioned next to the blind 10. In a preferred embodiment of the present invention, the drawstring 32 also passes through the opening 37 of the worm gear 20. In this way, the rotation of the worm gear 20 is not related to the drawstring 32, and further the action of the drawstring 32 is not related to the worm gear 20. As shown in FIG. 1, the handle 24 is shown to have an upper shell 38 and a lower 8 paper scales that are applicable to the Chinese National Standard (CNS) A4 specifications (2 丨 〇 > < 297mm) 丨 Binding book (please read the back first Please pay attention to this page and then fill out this page) The Ministry of Economic Affairs, Central Bureau of Accreditation and Employee Consumption Cooperation Du Printed A7 B7 V. Invention Instructions (6) Case 40. The drawstring 32 is looped around the pivot 42 to form a loop. The lower housing 40 takes an initial position shown in FIG. 1 as a starting point and can be pulled down as shown in FIG. 2 to selectively pull the pull cord 32 to operate the closing mechanism 30. The spring 44 connecting the lower case 40 to the upper case 38 can cause the lower case 40 to return to the original position after the tension applied to the lower case 40 is released. The controller or buckle 46 engaged with the lower housing 40 can selectively buckle the opening rope section 34 or the closing rope section 36. Please refer to FIGS. 3 and 4, which show a specific embodiment of the fastener 46. The fastener 46 includes a body 48 provided with a left chamber 50 and a right chamber 52, wherein the left chamber 50 is provided with a fixed roller 54 and a travel roller 56, and the right room is also provided with a fixed roller 58 and a travel roller 60. The opening rope segment 34 of the drawstring 32 passes near the fixed roller 54 and the traveling roller 56, and the closing rope segment 36 passes near the fixed roller 58 and the traveling roller 60. The gap between the fixed roller and the traveling roller should be sufficient to allow the rope 32 to pass freely between the two, but in a preferred embodiment of the present invention should also be small enough to allow the roller and the rope 32 There is a little friction between them. A switch 62 passes through the left and right chambers 50 and 52, and extends on either side of the buckle 46. As shown in the embodiment of FIG. 1, the switch 62 includes a left fork 64 and a right fork 66. When the switch 62 moves to the right as shown in FIG. 3, the left fork 64 interferes with the left travel roller 56. When the lower housing 40 and the attached fastener 46 move downward relative to the handle 24, the right travel roller 60 moves upward relative to the fastener 46, clamping the closed rope segment 36 of the drawstring 32 to Resist the right fixed roller 58. This will pull down the closed rope segment 36 of the pull rope 32, closing the blade 12 of the entire window opening. Waiting for the application of 9 paper standards, the Chinese National Standard (CNS) A4 specification (210X297 mm) is used. J 丨 Bing ice (please read the precautions on the back and then fill out this page). Seal «. A7 B7 V. Description of the invention (7) When the pull-down force of the lower housing 40 is released, see the spring 44 shown in FIG. 5 for details to return the lower housing 40 to the initial state shown in FIG. 1 position. To open the blinds 10, move the switch 62 to the left, then the right fork 66 interferes with the right travel roller 60, and pulling the lower housing 40 downward will cause the left travel roller 56 to clamp the opening rope of the pull rope 32 Segment 34 is against the left fixed roller 54. As the lower shell 40 continues to move downward, the opening rope segment 34 is pulled to retract the blade 12 from the opening of the window, thereby opening the shutter 10. In the specific embodiment of the present invention as shown above, the upper casing 38 and the lower casing 40 each independently operate to perform the required function. The upper casing 38 can be rotated to rotate the blade 12, and the lower casing 40 can be operated to move the blade 12 across the window opening. The unique combination of these features prevents the upper casing 38 from being tangled when the upper casing 38 rotates. Although the illustrated fastener 46 is described as a mechanical switching device, it is The scope of the invention may have many different configurations and embodiments for the fastener. The function performed by the buckle 46 is to selectively engage the opening rope section 34 or the closing rope section 36 of the loop pull cord 32. Various functions and designs can be used to achieve this function. The lower case 40 is shown to be slightly smaller than the upper case 38 and is attached to it with a spring 44. However, it should be understood that, within the scope of the present invention, the upper housing 38 and the lower housing 40 may adopt various configurations. For example, the lower case 40 may have a larger diameter than the upper case 38. As shown in FIG. 6, the lower case 68 is substantially composed of the entire length of the handle 70. In a variation of this embodiment, the lower housing 68 may include a number of tines 72 that can be engaged with the control mechanism 74. When these teeth are 10 pieces of paper, the Chinese National Standard (CNS) A4 standard (210X297mm) is applied ---------- installed ------ ordered ------ k (please Read the precautions on the back first and then fill out this page) A7 B7 Du Printed by Beigong Consumer Cooperation, Central Bureau of Standards, Ministry of Economic Affairs 5. Description of the invention (8) When the fork 72 and the control mechanism 74 snap together, the lower shell 68 rotates. At the same time, the control mechanism 74 is driven to rotate, so that the blade 12 rotates along with it, and the lower shell 68 can be pulled downwards, so as to selectively control the pull cord 32 as previously disclosed. As shown in FIG. 6, the fastener 76 may be connected to the bottom end of the lower case 68 so that the fastener 76 is easily accessible. In another embodiment of the present invention shown in FIG. 7, the handle 78 can be engaged with the control mechanism 16 shown in FIGS. 1 and 2, and the loop of the pull rope 32 can be cut to open the rope section 34 and close the rope The unfixed end of segment 36. The left grip 80 is attached to the open rope segment 34 of the drawstring, while the right grip 82 is attached to the closed rope segment of the drawstring 36. Pulling down the left grip 80, the blade 12 is moved to move When the shutter 10 is opened, on the contrary, the right grip 82 is pulled down, which can cause the blade 12 to move and close the shutter 10. The upper ends of the left grip bar 80 and the right grip bar 82 are enclosed in the handle 78, so that when the grip bars 80 and 82 are operated, the opening rope section 34 and the closing rope section 36 of the drawstring will never be revealed. As previously disclosed, the opening and closing rope segments 34 and 36 preferably pass through the opening 37 of the gear 20. Although the present invention is illustrated by the operation of the straight blade 12, the present invention can also be applied to horizontal blades To operate. As shown in FIG. 8, the operation of the pull cord 84 allows the blade 12 to move up and down relative to the upper rail 14. The grip 86 engaged with the rotation mechanism 88 can be rotated, and the blade 12 is opened and closed in a rotatable manner. The drawstring 84 enclosed in the handle 90 can also be pulled to raise and lower the blade 12. In an alternative embodiment of the present invention, the pull cord 84 can be connected to the blade rotation mechanism 88, so that when the pull cord 84 is operated, the blade 12 can be rotated to open the shutter, otherwise, the pull cord grip 86 can be operated The paper size is applicable to China National Standard (CNS) Α4 specification (210X 297mm) ---------- installed ------ ordered ------ 'paper (please read the back (Notes are required to fill out this page) Printed A7 B7 by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 5. In the description of the invention (9), the blade 12 can also be turned to close the shutter. Since the functions performed by the handle 90 are not related to the grip 86, the reversibility of these functions can be easily achieved by the present invention. As shown in FIG. 9, another alternative embodiment of the fastening mechanism is shown. As shown in FIG. 9, the fastener housing 92 is enclosed in the handle 94 and has a handle 96 from the groove of the handle 94 The handle 96 can be moved laterally within the buckle housing 92 to selectively clamp the open rope segment 34 or the closed rope segment 36 of the loop pull cord 32. In another embodiment of the present invention, a take-up shaft or spool may be provided to wind up the looped pull cord 32. As shown in FIG. 10, the take-up shaft 100 is provided at the lower end of the handle 102, so that any part of the loop-type pull cord 32 extending under the handle 102 can be retracted. It is also possible to attach the handle 104 to the take-up shaft 100 so that the take-up shaft 100 can easily perform its work. In another variation of this embodiment, the winding shaft can be rotated in a certain direction to open the blade 12, and the rotation can be rotated in the opposite direction to close the blade 12. FIG. 11 is a schematic diagram of an embodiment of the present invention, in which the pull rope 106 has a first rope segment 108 and a second rope segment 110 that end at the loop end 112. The rotating mechanism 114 is provided with a grip 116 and a gear box 118, and has an opening 120 through which the first rope segment 108 and the second rope segment 110 can pass therethrough. The rotation system of the rotation mechanism 114 cooperates with the gear box 118 so that each blade can pivot about an axis that is parallel to the aforementioned opening. The handle 122 is positioned below the rotating mechanism 114 so as to perform the purpose described later. The upper end of the fixing rod 124 is longitudinally fixed in cooperation with the rotating mechanism 114, and the lower end fixes the collar end 112 in a longitudinal direction 12 related to the rotating mechanism 114. The paper size is applicable to the Chinese National Kneading Rate (CNS) A4 specification (210X297 (Bumps) (please read the precautions on the back before filling in this page)-Binding · Order A7 B7__ printed by the Beigong Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. 5. Description of the invention (10) Position. A stop 126 is attached to the fixed rod 124, or may be integrally formed with the fixed rod 124 for the purpose of later description. The fixing rod 124 may include a square member, or may be triangular, cylindrical, oval, circular, or various other shapes. The stop 126 may include a simple latch, or may include a switching mechanism as described later. The drawstring lock 128 is attached to the handle 122 for clamping or otherwise clamping the drawstring 106, and the drawstring lock can move relative to the rotating mechanism 114 along with the handle 122. When the drawstring lock 128 fastens the first rope section 108, if the handle 122 and the drawstring lock 128 are moved downward, the first rope section 108 will be pulled to move the blade laterally relative to the opening. When the first rope rf / 108 is pulled by the downward movement of the handle 122 and the rope lock 128, the rope 106 will move the blade away from the opening, so that the shutter is opened so that the opening is not covered. The rope lock 128 can be operated to release the first rope segment 108, and the handle 122 can be pulled upward at this time, and the rope lock 128 can then seize the first rope segment 108, and then the handle 122 can be pulled downward again to continue The drawstring 106 is moved so that the blinds are opened. To reverse the direction of movement of the drawstring 106, the handle 122 can be moved upwards so that the drawstring lock 128 contacts the stop 126, thereby causing the drawstring lock 128 to release the first rope segment 108 and instead clamp the second绳 段 110。 The rope segment 110. In this way, the drawstring lock 128 and the stop 126 cooperate with each other to form a switching switch, causing the drawstring lock 128 to alternately clamp the first rope section 108 or the second rope section 110. Then, pull the handle 122 downward to pull the second rope segment 110, so that the blade crosses the opening laterally in the opposite direction to the previous action, so that the shutter closes the entire opening. Then the drawstring lock 128 can be contacted with 13 pieces of paper. The standard of China's National Standard (CNS) A4 (2 丨 0X297mm) IIIIII. IIIII order (please read the precautions on the back and fill in this page) Ministry of Economic Affairs Duzhong Printing A7 B7__ by Zheng Gong Consumer Cooperation of the Central Bureau of Prefectural Affairs. 5. Description of the invention (11) Stop 126, release the second rope segment 110, and clamp the first rope segment 108 'instead to repeat this cycle of operations. Although the drawstring lock 128 shown is a pressure-sensitive switch that can be operated after contact with the stop 126, the shape of the drawstring lock 128 can also be a change-over switch shown in other drawings or other shapes Structure. The function of the drawstring lock 128 is to selectively fasten the first rope section 108 or the second rope section 110 without hindering the operation of the barrel mechanism 136. Fig. 12 is a schematic diagram of another embodiment of the present invention, in which the lintel 130 supports the blade at a position adjacent to the opening. A part of the drawstring 106 is contained in the lintel 130, and the loop end 112 is hung directly under the lintel 130. The collar end 112 is engaged with a pulley 132 provided at the lower end of the fixed rod 134. The function of the barrel mechanism 136 is similar to that of the rotating mechanism 114, and its shape is generally a cylindrical body provided with a hollow center or opening 137 to allow the first rope section 108 and the second rope section 110 to pass therebetween. In addition, the cylindrical mechanism 136 may be provided with a grip surface 138. The handle 140 shown is a cylinder that can be reciprocally inserted into the hollow center of the cylindrical mechanism 136. The handle 140 may be provided with a grip 141 at the lower end thereof, so that the user can easily operate the handle 140 and limit the travel of the handle 140 in the hollow center of the cylindrical mechanism 136. The illustrated fixing rod 134 is a member having an upper or first end 142 and a lower or second end 144. The first end 142 is attached to the lintel 130, and the second end 144 is freely suspended and attached to the pulley 146. The drawstring lock 148 may be attached to the handle 14β, and its configuration may be formed to alternately clamp the first rope section 108 or the second rope section 110 as previously described. Figure 12 shows the drawstring lock 14 This paper scale uses the Chinese National Standard (CNS) Α4 specification (21〇Χ: 297 mm) ---------- installed ------ order ------ 4 (Please read the note $ item on the back and then fill in this page) A7 _B7___ printed by the Zhengong Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs V. Description of the invention (12) 148 clip the first rope segment 108 . When the handle 140 is pulled downward, the portion of the pull rope 106 that contacts the pulley 146 will move relative to the pulley 146, and the first rope segment 108 will also be pulled downward relative to the crosshead 130. In this way, the first rope segment 108 will allow the blades to move laterally across the entire opening to open the shutters so that the blades will not cover the opening. Then the rope lock 148 can release the first rope segment 108 so that the handle When 140 is raised, the rope lock 148 can then clamp the first rope segment 108, so that when the handle 140 is lowered, the first rope segment 108 can be moved in the same direction. The handle 140 can be raised to allow the stop 149 to contact the drawstring lock 148. This stop 149 may be included in a portion of the fixed rod 134, or may include a separate switching mechanism to cooperate with the drawstring lock 148 as previously described. When the stopper 149 is engaged with the drawstring lock 148, the drawstring lock 148 can be operated to release the first rope segment 108 and clamp the second rope segment 110 instead. Next, the handle 140 can be moved downward to pull the second rope segment 110, causing the blade to move in the opposite direction to the previous direction of travel over the opening, closing the shutter. This process can be repeated as long as the drawstring lock 148 is pressed against the stop 149, so that the drawstring lock 148 releases the second rope section 110 and clamps the first rope section 108 instead. . * Within the scope that does not violate the concept of the present invention, the structure of the drawstring lock can take many forms. For example, the drawstring lock 148 can be assembled to function in a variety of different ways. In an embodiment of the present invention, as long as the drawstring lock 148 is rotated, it can be released and the first rope section 108 and the second rope section 110 can be clamped again. As for this kind of rotation, the axial reciprocating motion of the fixed rod 140 can be used, or the fixed rod 134 can be used to carry out 15 paper scales relative to the handle 140 using the Chinese National Standard (CNS) A4 specification (210X297 mm)- -------. 装 ------ book ------ i (please read the precautions on the back before filling in this page) A7 ____B7 Fifth, the invention description (13) reached by axial movement . In another embodiment of the present invention, the drawstring lock can be set to be manually operated using only a simple toggle switch. Although the combination of the handle, the fixing rod and the drawstring lock can have many different configurations without violating the spirit of the present invention, the cooperative operation principle of these components is to selectively and alternately control the first rope section 108 And the second rope segment 110 causes the blade to move. Printed by the Beigong Consumer Cooperative of the Central Standard Falcon Bureau of the Ministry of Economic Affairs ^^ 1- ^^ — mv ^^^ 1 I 1 ^ 1 m ^ — ^ 1 · 0¾- 一 s (please read the precautions on the back before filling this page ) FIG. 13 is a schematic view of another embodiment of the present invention, wherein the lintel 130 supports the blade at a position adjacent to the opening. A part of the drawstring 106 shell is accommodated in the lintel 130, and the loop end 112 of the drawstring is suspended under the lateral lintel 130. The loop end 112 of the drawstring is engaged with a freely hanging pulley 132 . A weight 151 is attached under the pulley 132 to provide additional tension to the pull cord 106, so that the first and second rope segments 108 and 110 are straightened. The weight 151 also hangs freely from any blocking point, so that when the handle 140 is pulled downward, the weight 151 can prevent the rope segments 108 and 110 from crossing each other. In another preferred embodiment, the weight is replaced by a spring 161 or any elastic device, one end of the spring 161 is attached to the pulley 132, and the other end is attached to the handle 140 Lower part. The cylindrical mechanism 136 has a similar function to the rotating mechanism 114, and is shaped to enclose a drawstring locking device and form a hollow area through which the first rope section 108 and the second rope section 110 can pass. The cylindrical mechanism 136 may be provided with a grip surface 138. The handle 140 may be semi-cylindrical or semi-circular, or a partially open and partially cylindrical cylinder so that it can be inserted into the hollow center of the cylindrical mechanism 136. The handle 140 can also be provided with a grip 141 at the lower end of the handle, so that the user can easily operate the handle 140 ′ and limit it to 16 pieces A7 _B7__ printed by the Bureau ’s Consumer Cooperative. V. Description of the invention (14) The stroke of the handle 140 in the hollow center of the cylindrical mechanism 136, and the spring 161 can further limit the handle within the distance allowed by its pulling force. 1 40 itinerary. As shown in FIG. 13, the reversing switch 172 can be connected to the handle 140 and extend to the drawstring lock 148 in the handle 140. The reversing switch 140 can be a plate, a semi-cylindrical bend Rod, an all-cylindrical tube or any other suitable object that can reach the drawstring lock 148 from the handle 140 in any way, and an external switching mechanism 182, which can be in the form of a ring, a gear-like dish, or a button , Or any form that can be operated by hand. The top of the reversing switch 172 is also provided with an internal trigger 192. When the external switching mechanism 182 is actuated, the trigger 192 will enter the drawstring lock 148. Conversely, when the external switching mechanism 182 is not actuated, the internal trigger 192 blocks the drawstring lock 148 so that it cannot catch the first rope section 108 or the second rope section 110. In this way, the rope lock 148 can catch one of the rope segments, such as the first rope segment 108, so that when the handle 140 is pulled, the blade can be moved in a certain direction across the opening until the external switching is not actuated When the mechanism 182, it can make the rope lock 148 to catch another rope segment 110, so that the blade moves in the other direction. The various embodiments disclosed above are only used to illustrate the present invention, not to limit the scope of the present invention. Anyone who is familiar with this skill is easily inferred, and any modifications and changes made without violating the spirit of the present invention belong to the scope of patent application for the present invention. 17 The size of this paper is applicable to China ’s National Atomic Rate (CNS) A4 specification (210X297mm) ---------- installed ------ ordered (please read the $ item on the back and then fill in this page)