經濟部中央樣準局員工消費合作社印製 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 發明係有關一種能將操作拉繩或鏈條包封在一把手内、並 具有一旋動開關以供選擇性夾住這操作拉繩的百葉窗控 制器。 .諸如活動百葉窗之類的窗戶覆蓋物，可供遮蔽窗戶和 門的開口，以便阻隔光線的通過並保持隱私。葉片式百葉 窗是由若干葉片或葉板所構成，各該葉片均可獨立繞著一 個轉軸旋轉而將百葉窗開啟及閉合。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，藉以控制讓等葉片的旋轉。 如為橫式葉片的百葉窗中，會有一條拉繩接裝至一機 構並由該機構予以接合，只要拉動該拉繩而將葉片鎖定在 所欲的高度，即可使百葉窗升降。傳統的百葉窗所設的一 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，同時在任一繩段均 可被拉動而選擇性開啟或閉合百葉窗的葉片。在頒給 Anderson等人的第4,177,853號（1979年）及頒給Debs的 第4,48 7,2 43號（1984年）美國專利案中，各揭示了 一種具 有一個用以旋動這些葉片之握桿以及一個用以升降這些 葉片之拉繩的百葉窗。 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，則視開口的幅寬而定。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 而對孩童的安全恐有造成危害之虞。因為逭種危害’所以 4 本紙張尺度適用中國國家橾準（CNS ) Μ規格（210X297公釐） — II I I I 裝 II I 訂 I I I 線 (請先閲讀背面之注意事項再填寫本頁) 293864 Α7 Β7 經濟部中央標準局員工消費合作社印装 五、發明説明（2 ) 曾有人設法消除百葉窗的套環式拉繩。 曾試圖消除百葉窗之套環式拉繩的一個具體構想，是 加設一具電動驅動機構，以供選擇性操作百葉窗及個別的 葉片。然而，這電動機構會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。 頒給Uecker等人的第4,919,186號美國專利案（1990 年）掲示了關於百葉窗另一種構想，其中有條無端的繩索 可用以旋動一個轉輪和接裝的轉軸，以便捲撓和鬆開一條 無端拉繩，俾使葉片升降。雖然這實施例減短了操作拉繩 的長度，但該拉繩卻會外露而讓操作人員接觭到。 頒給Biba等人的第5,472,035號美國專利案（1995 年），掲示了一種讓百葉窗葉片升降的構想，其所掲示的 是穿過一旋動握桿的一條升降繩和一條無端拉繩。另有個 外部升降構件可跟這升降繩及無端拉繩二者接合，並被安 裝成能沿著握桿的外側移動。此外，在頒給Biba等人的 第5,465,775號美國專利案（1995年）也掲示了一個相關 的構想，它同樣是依賴延伸穿過一握桿的若干條升降繩和 一條無端拉繩。有個握桿連接器可讓這握桿相對於上軌而 旋轉，且這握桿沿著本身的一邊設有一開口，以供一把手 可沿著這握桿的外側移動。 雖然這些改良的百葉窗均將拉繩包封在操作組件 内，逭該等改良的製造費用均太昂貴，且需在握桿的外側 設一長形開口。是以，需要一種在製造上符合經濟效益， 且易於使用，同時具有一個能使百葉窗相對於一開D而移 ·* 5 (請先閱讀背面之注意事項再填寫本頁) .裝- ,^τ 線 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐） 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（3 ) 動之有效裝置的百葉窗。 本發明係提供一種能使百葉窗之葉片移動，以便遮蔽 諸如窗戶或門開口的改良裝置。本發明包括一支上軌，其 具有一個以上端接裝到所述之上軌，並以下端與該上軌遠 遠枏隔的外殻。有條連續拉繩位在該上軌附近，並可經接 合而使葉片移動越過該開口。有個旋動滑輪與這拉繩接 合，也與一設有上套環端及下套環端的連續套環繩接合。 有個能和該外殻一起移動的把手係與這下套環端接合。另 有個能與這把手一起縱向移動的拉繩鎖則可經操作而夾 住該套環繩，以致該套環繩操作所述之滑輪而使所述之拉 繩移動。此外，遺有個旋動開關接裝在這拉繩鎖上，以供 選擇性地使這拉繩鎖與套環繩接合及鬆開。 在本發明的另一實施例中，可包括一斜傾機構而使這 些葉片繞著各自葉片的縱軸旋動，同時這斜傾機構在所述 之外殻的附近設有一斜傾控制器。該斜傾機構可包括一斜 傾控制桿，一開關，和一設在這二者之間的斜傾控制繩。 該開關可由接裝到斜傾控制繩上的一個以上旋動環構 成。所述之旋動滑輪則可接合一制動器，以便選擇性防止 該滑輪的旋動，而所述之拉繩鎖可包括一個與套環繩接觸 的球形物和一止擋。 圖式簡要說明： 圖1所示者係本發明的一正視圖。 圖2所示者係本發明的一部份正視圖，顯示出各組件 配合運作而使百葉窗葉片旋動和縱向移動的情形。 6 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐) (讀先閱讀背面之注意事項再填寫本頁) ->° 丁 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（4 ) 較佳實施例詳細說明： 本發明係揭示一種對外露套環式拉繩所造成之潛在 危險加以解決的改良式百葉窗。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通常是由若干橫 式葉板或葉片12,橫楣或上軌14和控制機構16所組成。 百葉窗10的位置是設在一扇窗戶或門的開口處（未顯示） 附近，以便阻斷光線或空氣的通過。 上軌14是設在窗戶開口的頂部，以便葉片12能懋吊 在上軌14的下方。該上軌14包括固定外殻20，其上端 22係牢牢接裝在上軌14上，而具有之下端24則與上軌 14遠遠相隔。另外，外殻20尚設有可供後述其它组件穿 過的中空部26。雖然所示的外殻20外表面是個包封住其 它组件的固形物，但外殻20也可以被設置成是個棒、桿 或框架構件。 連續拉繩28係設於上軌14內，並繞住滑輪30和32。 拉繩28包括連繽套環34和若干條各有第一端38接設到 這連縝套環34上的拉繩段36。該等拉繩段36與葉片12 接合’以致連縝套環34繞著滑輪30和32旋動時，就可 將拉繩段36往上移動，使葉片12縱向上升越過整個開 口。另外，若將連續套環34繞著滑輪30和32朝著相反 轉向旋動時，便可使拉繩段36和葉片12下降越過整個開 □。 滑輪30包括與連續套環34接合的第一滑車輪40， (請先閱讀背面之注意事項再填寫本頁) .裝. -9 393864 經濟部中央標準局負工消費合作社印聚 A7 B7 五、發明説明（5 ) 另包括與連績套環繩44接合的第二滑車輪42。套環繩44 的上套環端46係與第二滑車輪42接觸，而另具有之下套 環端48則位在把手50內。在本發明的其它一些不同實施 例中’可讓下套環端48與接裝在把手50上的一個樞軸或 滑輪52接合。所示之把手50是支相對於外殻20可移動 的長形構件。在本發明的一實施例中，可將把$, 5 0設於 外殻20的中空部26內，以便把手50能在外殻20內往復 移動。握柄54係接裝在把手50上並從外殻20伸出。滑 輪52上接裝了重物56以防套環繩44鬆弛糾結。在本發 明的其它實施例中，則可如後所掲示的改由接裝在把手50 上的一彈簧取代這重物56。朝著圖1所示的定向，套環 繩44可防止把手50從外殻20掉落。把手50的形狀可以 作成圓筒形、方形、三角形或其它形狀。假使必要時，可 在把手50與外殻20之間設一鍵槽或其它扣持裝置（未顯 示），以防在其間產生旋轉動作，而使套環繩44糾結。 旋轉開關或拉繩鎖60係被接裝在把手50上，可供選 擇性夾住套環繩44。當拉繩鎖60夾住套環繩44並向下 拉動把手50時，拉繩鎖60及把手50的組合即如所示， 會共同合作而使套環繩44朝著順時針方向旋轉。這動作 可讓第二滑車輪42及滑輪30跟著旋動，因而使拉繩28 移動而將葉片12升起。在設計上可以屬於棘輪和輪爪或 其它已知機構的制動器62，能防止滑輪30朝著順時針方 向的旋動失控。制動器62可以跟拉繩鎖60所接合之制動 釋放65的制動釋放繩64接裝在一起’以便拉繩鎖60的 8 本紙張尺度適用中國國家標準（CNS ) A4規格（21〇Χ 297公釐） I I— I I m I n I I I I HI ί n n T I n n n------ (讀先閱讀背面之注意事項再填寫本頁) 經濟部中央標隼局負工消費合作社印聚 293864 A7 ____B7_ 五、發明説明（6 ) 選擇性動作可拉動釋放繩64，從而使制動器62脫離。等 這脫離和拉繩鎖60旋轉而讓其本身與套環繩44脫離接觸 之後，該眾數的葉片12便會因為重力關係而往下移動， 將拉繩段36往下拉動，致使拉繩28跟著移動而讓滑輪30 朝著反時針方向旋動。當滑輪30如此旋動時，亦會促使 拉繩44朝著逆時鐘方向旋動，因而讓所有的組件回到原 始位置。 拉繩鎖60可在不違本發明之範圍內以各種不同方式 製成。如圖1所示者即為拉繩鎖的一種設計，其中是將鎖 定機構66接裝到位於把手50内靥於長桿形式的延伸部68 上。該延伸部68則接裝到位在把手50外邊的旋轉環70 上並可繞把手50旋動。旋轉環70的外周邊可設置鋸齒狀 的刻痕或其它形狀，使操作人員的手易於跟旋轉環7〇接 觸。俾將旋轉環7〇旋動時，即可讓延伸部68及接觸端72 移動，從而操作拉繩鎖機構74。 拉繩鎖機構74可用各種不同方式製成’並可執行選 擇性接合或夾住套環繩44的功能。如圖1所示，拉繩鎖 機構74包括能在籠架78内直線行進的摩擦球76及止擋 80。等套環繩44與摩擦球76接觸，且套環繩44相對於 摩擦球76而上移時，也會使這摩擦球跟著移動’直至該 摩擦球76與止擋80共同配合夾住套環繩44為止。於此 可知的是，套環繩44相對於摩擦球76的相對上移動作’ 能利用把手50的下移動作及旋轉環的選擇性操作達 成。若朝相反轉向將旋轉環70旋動時’接觸端72便會釋 9 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） ---------种衣-------、玎------@ (請先閱讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（7 ) 放掉摩擦球76，制動器62也跟著被釋放，以致套環繩44 可朝逆時鐘方向移動，因而摩擦球76即釋放掉套環繩44 上的握柄。 圖2所示者係本發明的另一實施例，其中設有一個斜 傾操作機構82,以便使各葉片12能繞著葉片本身的縱軸 旋轉，從而將百葉窗10閉合。該斜傾操作機構82設有斜 傾控制桿84，斜遮控制器86和位在其二者之間的斜傾控 制繩88。斜遮控制器86可由單一元件或由如圖2所示的 若干旋轉環組合件構成。第一環圈90係係位在外殻20外 表面的周圍，並被接裝到斜傾控制繩V 88的第一端92。反 之，斜傾控制繩88係先捲繞住斜傾控制桿84所接設的捲 軸94，再向下延伸到斜傾控制繩88的第二端96。該第 二端96是被接裝到第二環圈98上。第一端92係穿過外 殻20的孔口 100,而第二端96則穿過外殻20的孔口 102。 孔口 100用以固定斜傾控制繩88位於該孔口 100及捲軸 94之間的那段繩段，以便環圈90繞著外殻20旋動時’即 可拉動穿過該孔口 100的第一端92。該動作能使捲軸94 和接設的斜傾控制桿84旋動，從而使葉片12旋動。如欲 使葉片回到原來的定向，可讓環圈98相對於外殻20旋 轉，以致拉動穿過孔口 102的第二端96，使捲軸94和斜 傾控制桿84朝著相反方向旋動。 滑輪52和把手50之間設有彈簧104，以便能在該把 手50和外殻20之間動作，並提供一種相對於外殼20而 言，能使把手50回到原始位置的回復力。該彈簧1〇4也 本紙張尺度適用中國國家標準（CNS ) Λ4規格（210X297公釐） (請先閱讀背面之注意事項再填寫本頁) -* 丁 A7 ___B7_ 五、發明説明（8 ) 能配合運作而防止套環繩44變鬆弛和糾結。 在傳的百葉窗中，套環繩構成一項對百葉窗附近人們 的安全危害。本發明因為將所有的拉繩均包封在上軌14 和把手50内，所以解決了這種問題。 本發明可在不違其概念的範圍內，以種種不同的形式 予以實施。例如，環圈90和98可形成一個單一的控制器， 斜傾控制繩88則可由一條以上的繩索或剛性的機械機構 組成，而拉繩鎖機構74亦可用種種不同的方式製成，以 供夾住套環繩44。 以上所掲示的各種實施例，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，倶屬本發明申請專利範圍。 _ m I It I n - n n I n I— n I T _ I --------- 0¾ 、V5 痛 {請先閱讀背面之注意事項再填寫本頁) 經濟部中央標準局負工消費合作社印製 11 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X 297公嫠）A7 B7 printed by the Employee Consumer Cooperative of the Central Prototype Bureau of the Ministry of Economic Affairs V. Description of the invention (1) The present invention relates to a controller for operating blinds, in particular, the present invention relates to a controller capable of enclosing an operating rope or chain in one handle There is a rotary switch for selectively clamping the shutter control of the operating rope. .Window coverings such as blinds can be used to cover the openings of windows and doors to block the passage of 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 rod attached to a gear mechanism is used, or a chain engaged with a gear mechanism is pulled to control the rotation of the blade. In the case of a louver with horizontal blades, a pull cord is attached to a mechanism and is engaged by the mechanism. As long as the pull cord is pulled and the blade is locked at a desired height, the louver can be raised and lowered. A loop type pull rope provided by the traditional blinds has two rope sections. The rope segments are attached to a mechanism in the louver to facilitate the movement of the blades, and at the same time, any rope segment can be pulled to selectively open or close the louver blades. In U.S. Patent Nos. 4,177,853 (1979) issued to Anderson et al. And 4,48 7,2 43 (1984) issued to Debs, each disclosed a method for rotating these blades. A grip and a louver for pulling the blades up and down. 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. Blinds used for large openings require a loop-type pull cord that extends to the floor ', which may threaten children's safety. Because of the hazards of the species, the 4 paper scales are applicable to the Chinese National Standard (CNS) M specifications (210X297 mm) — II III Pack II I Order III line (please read the precautions on the back and fill in this page) 293864 Α7 Β7 Printed by the Employees ’Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Description of Invention (2) Someone once tried to eliminate the loop-type drawstring of blinds. One specific idea that tried to eliminate the loop-type drawstring of the blinds was to add an electric drive mechanism for the selective operation of the blinds and individual blades. However, this motor-driven mechanism will greatly increase the cost of blinds, and it will also increase the number of mechanical components that may be at risk. U.S. Patent No. 4,919,186 (1990) issued to Uecker et al. Shows another conception of blinds, in which an endless rope can be used to rotate a runner and an attached shaft in order to wind and loosen one. Endless pulling rope, so that the blade rises and falls. Although this embodiment reduces the length of the operating cord, the cord will be exposed and allow the operator to catch it. U.S. Patent No. 5,472,035 (1995) issued to Biba et al. Shows a concept of raising and lowering the louver blades. It shows a lifting rope and an endless rope passing through a rotating grip. Another external lifting member can be engaged with both the lifting rope and the endless rope, and is installed to be movable along the outside of the grip. In addition, U.S. Patent No. 5,465,775 (1995) issued to Biba et al. Also shows a related concept, which also relies on a number of lifting ropes and an endless pulling rope extending through a grip. A grip connector allows the grip to rotate relative to the upper rail, and the grip is provided with an opening along one side of the grip to allow a handle to move along the outside of the grip. Although these improved blinds enclose the drawstring in the operating assembly, the manufacturing costs of these improvements are too expensive, and a long opening is required on the outside of the grip. Therefore, there is a need for an economical manufacturing that is easy to use and has a blind that can move relative to the opening D * 5 (please read the precautions on the back before filling out this page). 装-, ^ τ The size of line paper is applicable to China National Standard (CNS) Α4 specification (210Χ297mm). The A7 B7 is printed by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. 5. Description of invention (3) Blinds for effective devices. The present invention provides an improved device that can move the blades of blinds to shield openings such as windows or doors. The present invention includes an upper rail having a housing with more than one end attached to the upper rail and separated from the upper rail by a lower end. A continuous drawstring is located near the upper rail and can be engaged to move the blade across the opening. A rotating pulley is engaged with this pull rope, and also with a continuous loop rope provided with an upper loop end and a lower loop end. A handle that can move with the housing is engaged with the lower collar end. Another drawstring lock that can move longitudinally with the handle can be operated to clamp the loop rope, so that the loop rope operates the pulley to move the drawstring. In addition, there is a rotary switch attached to the drawstring lock for selectively engaging and releasing the drawstring lock with the loop rope. In another embodiment of the present invention, a tilt mechanism may be included to rotate the blades about the longitudinal axis of the respective blade, and the tilt mechanism is provided with a tilt controller near the casing. The tilt mechanism may include a tilt control lever, a switch, and a tilt control rope provided therebetween. The switch may consist of more than one swivel ring attached to the tilt control rope. The turning pulley can engage a brake to selectively prevent the turning of the pulley, and the drawstring lock can include a ball contacting the collar rope and a stop. Brief description of the drawings: Figure 1 shows a front view of the present invention. Figure 2 is a partial front view of the present invention, showing the coordinated operation of the components to rotate and longitudinally move the louver blades. 6 This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210X 297mm) (read the precautions on the back and then fill out this page)-> ° D7 Printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 Description of the invention (4) Detailed description of the preferred embodiments: The present invention discloses an improved blind that solves the potential danger caused by the exposed loop-type pull cord. 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 generally composed of a plurality of horizontal vanes or blades 12, crossheads or upper rails 14 and a control mechanism 16. The position of the blinds 10 is provided near the opening (not shown) of a window or door to block the passage of light or air. The upper rail 14 is provided at the top of the window opening so that the blade 12 can be suspended under the upper rail 14. The upper rail 14 includes a fixed housing 20, the upper end 22 of which is firmly attached to the upper rail 14, and the lower end 24 is far from the upper rail 14. In addition, the housing 20 is provided with a hollow portion 26 through which other components described later can pass. Although the outer surface of the housing 20 is shown as a solid body that encapsulates other components, the housing 20 may be configured as a rod, rod, or frame member. The continuous rope 28 is set in the upper rail 14 and surrounds the pulleys 30 and 32. The drawstring 28 includes a continuous loop 34 and a plurality of drawstring sections 36 each having a first end 38 connected to the continuous loop 34. The rope segments 36 are engaged with the blades 12 so that when the continuous collar 34 is rotated around the pulleys 30 and 32, the rope segments 36 can be moved upwards, causing the blades 12 to rise longitudinally across the entire opening. In addition, if the continuous collar 34 is turned in opposite directions around the pulleys 30 and 32, the drawstring section 36 and the blade 12 can be lowered over the entire opening. The pulley 30 includes the first sheave 40 engaged with the continuous collar 34, (please read the precautions on the back before filling in this page). Installed. -9 393864 Printed Poly A7 B7 by the Consumer Labor Cooperative of the Central Bureau of Standards, Ministry of Economic Affairs DESCRIPTION OF THE INVENTION (5) It also includes the second sheave 42 engaged with the consecutive loop 44. The upper loop end 46 of the loop rope 44 is in contact with the second pulley 42 and the other lower loop end 48 is located in the handle 50. In some other different embodiments of the present invention, the lower collar end 48 may be engaged with a pivot or pulley 52 attached to the handle 50. The handle 50 shown is an elongate member that is movable relative to the housing 20. In an embodiment of the present invention, $ 50 can be provided in the hollow portion 26 of the housing 20 so that the handle 50 can reciprocate in the housing 20. The grip 54 is attached to the handle 50 and extends from the housing 20. A weight 56 is attached to the pulley 52 to prevent the loop rope 44 from loosening and tangling. In other embodiments of the present invention, the weight 56 can be replaced by a spring attached to the handle 50 as shown later. In the orientation shown in FIG. 1, the loop cord 44 prevents the handle 50 from falling out of the housing 20. The shape of the handle 50 may be cylindrical, square, triangular or other shapes. If necessary, a keyway or other buckling device (not shown) may be provided between the handle 50 and the housing 20 to prevent entanglement of the loop cord 44 due to the rotation action therebetween. A rotary switch or drawstring lock 60 is attached to the handle 50 and can selectively clamp the loop rope 44. When the drawstring lock 60 clamps the loop cord 44 and pulls the handle 50 downward, the combination of the drawstring lock 60 and the handle 50 will work together as shown to rotate the loop cord 44 clockwise. This action allows the second pulley 42 and the pulley 30 to rotate, thereby moving the drawstring 28 to raise the blade 12. The brake 62, which may be a ratchet and a claw or other known mechanism in design, can prevent the pulley 30 from rotating uncontrollably in a clockwise direction. The brake 62 can be connected with the brake release rope 64 of the brake release 65 engaged by the rope lock 60 'so that the paper size of the rope lock 60 is applicable to the Chinese National Standard (CNS) A4 specification (21〇Χ 297 mm ) II— II m I n IIII HI ί nn TI nn n ------ (read the precautions on the back and then fill out this page) The Ministry of Economic Affairs Central Standard Falcon Bureau Negative Work Consumer Cooperative Printing and Printing 293864 A7 ____B7_ V. DESCRIPTION OF THE INVENTION (6) The selective action can pull the release rope 64 to disengage the brake 62. After this disengagement and the rope lock 60 rotates to disengage itself from the collar rope 44, the majority of blades 12 will move downward due to gravity, pulling the rope section 36 downwards, causing the rope 28 moves with it, turning pulley 30 counterclockwise. When the pulley 30 rotates in this way, it will also cause the rope 44 to rotate in the counterclockwise direction, thereby returning all the components to the original position. The drawstring lock 60 can be made in various ways without departing from the scope of the present invention. As shown in FIG. 1, it is a design of a drawstring lock in which the locking mechanism 66 is attached to an extension 68 in the form of a long rod that is located in the handle 50. The extension 68 is connected to the rotating ring 70 located outside the handle 50 and can be rotated around the handle 50. The outer periphery of the rotating ring 70 may be provided with zigzag-shaped notches or other shapes, so that the operator's hand is easily contacted with the rotating ring 70. When the rotating ring 70 is rotated, the extension 68 and the contact end 72 can be moved to operate the drawstring lock mechanism 74. The drawstring lock mechanism 74 can be made in various ways and can perform the function of selectively engaging or clamping the loop rope 44. As shown in FIG. 1, the drawstring lock mechanism 74 includes a friction ball 76 and a stop 80 that can travel linearly in the cage 78. When the collar rope 44 is in contact with the friction ball 76, and the collar rope 44 moves upward relative to the friction ball 76, the friction ball will also move with it until the friction ball 76 and the stop 80 cooperate to clamp the collar Rope 44. Here, it can be seen that the relative upward movement of the collar rope 44 relative to the friction ball 76 can be achieved by the downward movement of the handle 50 and the selective operation of the rotating ring. If the rotating ring 70 is turned in the opposite direction, the contact end 72 will be released. 9 The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) --------- seed coat- ----- 、 玎 ------ @ (Please read the precautions on the back before filling out this page) A7 B7 printed by the employee consumer cooperative of the Central Bureau of Standards of the Ministry of Economy V. Invention description (7) Let go of the friction ball At 76, the brake 62 is also released, so that the loop cord 44 can move in the counterclockwise direction, so the friction ball 76 releases the grip on the loop cord 44. Fig. 2 shows another embodiment of the present invention, in which a tilt operating mechanism 82 is provided so that each blade 12 can rotate about the longitudinal axis of the blade itself, thereby closing the shutter 10. The tilt operating mechanism 82 is provided with a tilt control lever 84, a tilt shield controller 86, and a tilt control rope 88 positioned therebetween. The oblique shutter controller 86 may be composed of a single element or a plurality of rotating ring assemblies as shown in FIG. The first loop 90 is tied around the outer surface of the housing 20 and is attached to the first end 92 of the tilt control rope V88. On the contrary, the tilt control rope 88 is first wound around the reel 94 connected to the tilt control lever 84, and then extends downward to the second end 96 of the tilt control rope 88. The second end 96 is connected to the second ring 98. The first end 92 passes through the orifice 100 of the housing 20 and the second end 96 passes through the orifice 102 of the housing 20. The hole 100 is used to fix the section of rope between the hole 100 and the reel 94 so that the loop 90 can be pulled through the hole 100 when the ring 90 is rotated around the housing 20 First end 92. This action can rotate the winding shaft 94 and the inclination control lever 84 connected to rotate the blade 12. To return the blade to its original orientation, the ring 98 can be rotated relative to the housing 20 so that the second end 96 passing through the orifice 102 is pulled to rotate the reel 94 and the tilt control lever 84 in opposite directions . A spring 104 is provided between the pulley 52 and the handle 50 so as to be able to move between the handle 50 and the housing 20, and to provide a restoring force relative to the housing 20 to return the handle 50 to its original position. The spring 104 is also compatible with the Chinese National Standard (CNS) Λ4 specification (210X297mm) (please read the precautions on the back before filling out this page)-* 丁 A7 ___B7_ Fifth, the invention description (8) can cooperate It operates to prevent the loop rope 44 from becoming loose and tangled. In the blinds passed, the loop rope constitutes a safety hazard to people near the blinds. The present invention solves this problem because all the drawstrings are enclosed in the upper rail 14 and the handle 50. The present invention can be implemented in various forms without departing from its concept. For example, the loops 90 and 98 can form a single controller, the pitch control rope 88 can be composed of more than one rope or a rigid mechanical mechanism, and the rope lock mechanism 74 can also be made in various ways for夹 套套 绳 44. The various embodiments described above are only used to illustrate the present invention, and are not intended to limit the scope of the present invention. Anyone who is familiar with this skill is easily inferred, and any modification and change that does not violate the spirit of the present invention shall fall within the scope of the present invention patent application. _ m I It I n-nn I n I— n IT _ I --------- 0¾, V5 pain (please read the precautions on the back before filling in this page) the Ministry of Economic Affairs Central Standards Bureau unemployed consumption Printed by cooperatives. This paper standard is applicable to China National Standard (CNS) A4 (210 X 297 gong)