1329146 九、發明說明： 【發明所屬之技術領域】 本發明係有關於—拉伸機構，用以㈣卜裝設—消極式 多臂機（dobby)之織機的综片框架。本發明亦有關於一裝 設有該機構之織機。 【先前技術】 在消極式多臂機的領域中，已知的，例如由EP a_〇 52了 095，製造一拉伸機構以控制一織機的综片框架，其中， 可撓疋件諸如一股線一方面被緊固至一回復彈簧組件或 ***，另一方面被緊固至一被多臂機所控制之構件，此 一可撓元件依序地承载在二回復桿上，每一回復桿均被聯 結至一综片框架。在综片框架將被驅動時，提供相同之多 數的附屬之可撓元件及桿組。此一已知機構係相當複雜， 在做為用以調整開口之裝置時，必須被提供在可撓元件與 多臂機所驅動的構件之間的結合區域中。於此情況，前述 之被多臂機所驅動的構件，必須以可調整方式被機械地連 接至被多臂機所驅動的擺動桿。如此，造成複雜且相當重 的結構’當多臂機產生作用時，其遭受激烈的加速。在此 型裝置中’開口調整|置均被裝設在多臂機之内側。因而 造成困難接近之結果。 【發明内容】 本發明之特別目的係克服該等缺點，提供一新顆的拉伸 機構，相關於習知機構係為簡化的，且允許輕易地調整開 口 〇 93127810 1329146 _ 由此一觀點，本發明係有關於一拉伸機構，用以控制一 裝設有消極式多臂機的織機之綜片框架，此一機構包括供 每一綜片框架用的一可撓元件，可撓元件延伸在被多臂機 所引動的一構件與一回復彈簧組件或***之間，且被緊 固在此一構件上、在此一組件上、及在二回復桿上，每一 回復桿被聯結至框架。此一機構之特徵在於可橈元件被直 接地聯結至多臂機的擺動桿上，此一桿具有固定之振盪振 幅且裝設有一設有適合選擇性地與多臂機之讀數裝置配 • 合的鈎之雙擺動桿，使可暫時地固定擺動桿；其特徵在 於：可撓元件亦以可調整方式聯結至回復桿之一，其結 果，在可撓元件與回復桿的樞軸之間的距離係可變化的， 而被可撓元件可調整地聯結之回復桿係設有一觸止元 件，相關於此一桿移動且與可撓元件固定，且觸止元件係 被成形以鄰接方式承接可撓元件的一部件。 由於本發明，開口調整裝置不需要被提供在多臂機之水 β 平處，其可因而被大為簡化，因為此一裝置係於回復桿之 一的水平處偏移，其為更簡單之結構，且比多臂機之元件 更可接近。使用移動式觸止元件可協助調整開口。其以鄰 . 接方式承接一部份可撓元件之事實，允許觸止元件相當大 . 程度地避免可撓元件之寄生運動。 依據本發明之有利但非必要之態樣，此一機構附有申請 專利範圍附屬項第2至17項之一或多個特徵。 本發明亦有關於一裝設有前述之拉伸機構的織機。該一 織機係更可靠且比習知技術之織機便宜。 93127810 6 1329146 【實施方式】 圖1至5所示的織機M包括一配設有繞著一共用軸線 12樞轉之擺動桿丨1的消極式多臂機1〇。在圖1中，僅有 柃11可完整地看到，多臂機10的護罩13已被局部地 拆解（以顯示其之内部），第二桿u，係可局部地看到。 桿11裝設有一承載著鈎15的雙擺動桿14，該鈎15係 用以在一控制單位22的控制下配合制動鈎21。元件符號 21與22之元件屬於多臂機1〇的讀數裝置2〇。 其他的桿11’及其等效物，均相同地裝設雙擺動桿，該 擺動桿設有適用以配合讀數裝置2〇之鈎。 如雙箭頭F,所示’桿11與等效物以固定的振盛振幅繞 著軸線12樞轉。其可選擇性地經由配合於鈎15與21而 被制動於鄰近其之行程的死點中心。 一可撓股線30被聯結在每一桿Η及其等效物上，如示 於圖1令之供桿11，用的股線。此一股線自每一擺動桿U 或11’延伸朝向第一回復桿40，股線被緊固於此，然後由 此向上延伸至第一回復桿50，並相同地被緊固於此。由 桿50開始，股線30延伸朝向一個包括彈簧61的組件或 ***（register)60，用以彈性地回復桿u、4〇與5〇， 使其朝向該等元件的預定位置。股線3〇之路徑係直線地 位於桿11與40之間、桿40與50之間、及桿5〇與組件 60之間。以此方式，除了桿40與5〇以外，不須在股線 30的路徑上提供回復滑輪。 每一桿40與50被二連接桿41與42、51與52個別地 93127810 1329146 連接至-裝設有綜片71之框架7Q，圖中僅可見到部份之 綜片。 在實際應用中’股線30由多數個部位所形成，即為， 延伸在桿11與40之間的第一部位3卜延伸在桿4〇與5〇 • 之間的第二部位32、及延伸在桿5〇與彈菁組件6〇之間 . 的第三部位33。 部位31至33 -起構成—可撓元件，即為，延伸在桿 11與組件60之間’且依序地被承載於桿與上的元 W 件 30。 —部位31的第-末端311水平處裝設一適用與被提供在 每一桿11及其等效物上的鈎112配合之懸環312 ◊每一 該等杯11及其等效物亦設有一由彈性體或其他材料製成 的剎車塊111，用以承載及導引股線30。 每一剎車塊111實質上係定心在軸線12上的一區段。 在一變化中，剎車塊U1可被定心在每一剎車塊111與轴 馨 線12之間的中間軸線上。 邓位31的相對末端313被連接至可繞著一軸線樞轉 之桿40。此一桿設有一延伸件43，其以實質上垂直於部 位31之方向B-B’的方向A-A，而延伸在桿40與桿11之間。 一觸止元件415被可滑動地裝配在延伸件43上，且由 圖2與3之比較可清楚看出，該元件415的位置可在雙箭 頭F2的方向中變化。延伸件43係由二板4知與4肋所形 成，且觸止元件415可被***且滑動於其間。在圖2中， 板43b已被省略以使圖式可較清楚。 93127810 1329146 觸止元件415在延伸件43上的位置變化，使其可變化 在鄰近觸止元件415的股線30之部位31與軸線45之間 的距離d，如此，可協助調整開口（shed)。 由圖4可更清楚看到，觸止元件415界定二槽421與 422,個別地被製成在觸止元件415相對於軸線45的邊緣 423上，及轉動朝向此一軸線之觸止元件415的邊緣424 上。 每一槽421與422係被成形以使可以簡單鄰接方式承接 部位31的鄰近其之末端31b的一部件31a，該末端31b 係被捲曲在一金屬尾端件38中。 元件符號31c與31d代表部件31a的單紗，其係個別地 鄰接在觸止元件415的邊緣423與424上。 在單紗31c與31d之間，部件31a實質上形成反轉，即 為依循著以約180°迴轉的路徑，被鄰接在相關於延伸件 43橫向地突出之觸止元件415的部件425上。此一部件 425亦界定一槽426，用以承接且導引部件31a的彎折部 位 31e 〇 以此方式，部位31的部件31a自其之末端31b在槽 422、425與421中前進，槽421係如觸止元件415的邊 緣423 —般地凸出。 邊緣423與槽421之底部的凹處係在轴線45的方向中 轉動。如此，不論沿著延伸件4 3之觸止元件415的位置 為何，及不論桿40相關於軸線45之位置為何，均可有效 地導引單紗31c。因而，於桿40之移動期間，部位31不 93127810 9 1329146 會傾向於「振盪」，於此一移動期間的距離d實質上保持 恆定。因而，可精確控制相關聯之综片框架。 以此方式，可多少地相關於軸線45補償由股線3〇之部 位31施加在桿40上的牵引h之效果的應用點，如此， 調整由桿40與50控制之框架7〇的行程，即為，調整盛 織機Μ獲致之開口。 〃 在實際應用中，於圖2之組態中，邊緣423可為弧形的 且被大約地定心在軸線45上。 螺釘416可被接收在製成於觸止元件415中的一縱向外 罩中’且其以實質上垂直於方向Α_Α，的方向延伸。螺釘穿 透製成於一鎖緊旋鈕436中的螺絲攻’該旋鈕係被承接在 部件425中。經由施加在旋鈕436及螺釘416的頭部“Μ 之間的延伸件43上之緊固，可因而獲致觸止元件415的 阻斷。 』 备獲致所需之調整時，即為當所需之距離d被界定在股 線30與軸線45之間時，由於螺釘416之故觸止元^ 415在延伸件43上固定。為了協助此一調整，延伸件“ 可被没有刻度（未示於圖中）。 依據本發明的一變化（未圖示），股線部位31之末端 可僅延伸在觸止元件415的上部部份上，於其之最遠離相 對應之桿11的其之部件水平而被固定於其上。於此情 況’觸止元件415包括用以承接股線部位31的單—之槽二 部位32經由其之末端321與322被個別地聯結至桿曰 與50。至於部位33 ,其經由其之個別末端331與聯 93127810 1329146 結至桿50及被配置在桿40與50之間的組件60。 杯40之主要部件44係由鋼鐵製成。其係具有突出部或 延伸件43的單件式。部件44設有一區段46，用以在其 末端321之鄰近部位處承載股線3〇之部位32。此一區段 可由合成材料製成。一鈎47亦被提供在部件44上，用以 緊固該部位32。區段46界定桿40的區域Z4，元件3〇的 部位32由此延伸遠至此一部位32的末端犯2抵靠到桿 50的區域&為止。區域&係位於轴線45與框架7〇之間， 即為低於此一軸線，而區域Zs係被配置在軸線45上方， 即為相關於轴線55而相對於框架70。 桿50亦界定一位於軸線55與框架7〇之間的第二區域 ZV部位33由此以實質上垂直於框架7〇之振盪方向z_z， 的方向延伸。 由於區域△、Z5與Z，5的分佈，構成股線30之部位32 與33不會交叉連接桿41與51，其可因而提供一寬度而 使其具有良好之機械特性。 在實際應用中，桿50係由合成材料製成之二區段56與 56所形成，界定區域與z’5 ’並於兩者之間配置一金屬 嵌件。 考慮到其之幾何結構’桿40與50可被認為係「滑輪桿」。 由前述，經由在延伸件43上位移觸止元件415，可獲 致由每一框架70所產生之開口的調整。此一觸止元件與 此一延伸件可輕易地自綜片框架上方進入。 一框架與另一框架之開口的調整係不同的。 93127810 11 1329146 為使避免被提供在每一桿40上的突出部或延伸件43成 為太長，桿11及等效物可以二種尺寸提供，即為，以該 一幾何結構，其之個別剎車塊111繞著軸線12的樞轉半 徑R，在此二組桿之間係不同的。在所示範例中，桿係以 二組分佈，即為，桿11型式的桿之剎車塊111的樞轉半 徑R係相對地小，而桿11’的相對應半徑R’係相對地大。 在實際應用中，具有較大半徑R’之桿均被安裝在開口後 方上，即為在織機經軸側上。 前述元件均由一經轴80所支承，經軸80的主要軸線 X-X’係水平的，此一經軸被裝設在織機的框架70上方， 且設有開口以供連接桿41與51通過。 棒桿62延伸在經軸80的一末端83與組件60之間，且 設有一用以調整彈簧61之張力的系統63，使可調整組件 60在每一可撓股線30上產生的彈性效應。 在示於圖6中的本發明之具體例的第二形式中，類似於 第一具體例之元件均相同於前述之說明。此一具體例與先 前具體例的不同點，基本上在於可撓股線30的第二部位 32係延伸在類似於第一具體例之第一回復桿40的區域Z4 與由第二回復桿50的區段56所形成的第二區域Z5之間， 區域Zs係位於桿50之樞軸線55與框架70之間。以此方 式，部位32實質上垂直於框架70的振盪方向Z-Z’。 此外，被配置在桿40與50之間的彈簧組件60被部位 33連接至桿50，部位33延伸在由桿50的第二區段56’ 所形成且位於相關於軸線55係相對於框架70之區域Z’5 93127810 12 1329146 與組件60之間。部位33實質上垂直於元件50與60之間 的方向Z’。 如前所述’與元件30之部位31的末端313固定之觸止 元件415 ’可沿著由桿40形成的一突出部43滑動，其結 果’在此一桿的樞軸線45與股線30之間的距離d係可變 化的。 本發明之特性係具有滑動在回復桿之延伸件上的觸止 元件，其可相等地良好應用至任何形式之觸止元件，該觸 止元件可相關於其被裝配之桿移動，位移可以為連續或非鲁 連績的、平移或旋轉的。 所不之不同形式具體例的技術特徵，可在本發明之範疇 内被組合在一起。 【圖式簡單說明】 參照所附圖式，由下述之以範例說明的依據本發明之機 構的三種形式具體例之描述’可更輕易地了解本發明，且 其之其他優點將更清楚地顯現，其中： 圖1係概略地顯示依據本發明之織機的支樓經轴及多馨 臂機的濩罩，圖式中部份被局部分解。 圖2係圖！中之細部Π的放大圖，且調整***之位置 的桿已被省略，以使可更清楚顯示圖式。 圖3係當該機構在一第二使用么日自匕a 士 ▲ 再你乐便用組恕中時的類似於圖2之 圖式。 圖4係沿著圖3之線1W的局部剖面放大圖。 圖5係沿著圖3之線V-V的局部剖面放大圖。 93127810 13 10 11 1Γ 12 13 14 15 20 21 22 30 31 31a 31b 31c 31d 31e 32 33 38 40 圖β係依據本發明之具體例的第二 於圖1的圖式。 飞之錢構的類似 【主要元件符號說明】 (消極式）多臂機 (擺動）桿；（固定振盪振幅）桿 (第二）桿；（擺動）桿；（固定振蓋振幅）桿 (共用）軸線 護罩 雙擺動桿 鈎 讀數裝置 (制動）鈎 控制單位 可撓元件；（可撓）股線 (可撓元件）（第一）部位 (可撓元件）部件 末端 單紗 單紗 (彎折）部位 (可撓元件）（第二）部位 (可撓元件）（第三）部位 (金屬）尾端件 (第一）回復桿；（彈性回復）桿 93127810 1329146 41 42 43 43a 43b 44 45 46 47 50 51 52 55 56 56, 60 61 62 63 70 71 80 83 111 連接桿 連接桿 延伸件；突出部 (延伸件）板 (延伸件）板 (桿）（主要）部件 (樞）軸線；（旋轉）軸線 區段 鈎 (第二）回復桿；（彈性回復）桿 連接桿 連接桿 (樞）軸線 區段 區段 (彈簧）組件；*** (回復）彈簧 棒桿 (張力調整）系統 框架 綜片 經軸 (經軸）末端 剎車塊；（可撓元件）緊固區域 93127810 1329146 112 鈎 130 可撓元件 140 回復桿 311 (第一）末端 312 懸環 313 (相對）末端 321 (第二部位）末端 322 (第二部位）末端 331 (第三部位）末端 332 (第三部位）末端 415 觸止元件 416 螺釘；阻斷手段 416a (螺釘）頭部 421 (承接、導引）槽；（承接）區域；（凸狀）部件 422 (承接、導引）槽；（承接）區域 馨 423 (觸止元件）邊緣 424 (觸止元件）邊緣 425 (橫向突出）部件；槽 426 (承接、導引）槽；（承接）區域 436 鎖緊旋鈕；阻斷手段 d 距離 F1 枢轉方向；雙箭頭 F2 (觸止元件）移動方向；雙箭頭 F4 牽引 93127810 1329146 Μ 織機 R 半徑；距離 R’ 半徑；距離 Z4 (第一回復桿）區域1329146 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a tensioning mechanism for (4) a heald frame of a looming machine of a passive dobby. The invention also relates to a loom incorporating the mechanism. [Prior Art] In the field of passive dobby machines, it is known, for example, from EP a_〇52 095, to manufacture a stretching mechanism for controlling a heald frame of a loom, wherein the flexible member such as a The strands are fastened on the one hand to a return spring assembly or positioner and on the other hand to a member controlled by the dobby, the flexible elements being carried sequentially on the two return rods, each The return rods are all coupled to a heald frame. The same number of attached flexible elements and rod sets are provided when the heald frame is to be driven. This known mechanism is quite complicated and, when acting as a means for adjusting the opening, must be provided in the joint region between the flexible member and the member driven by the dobby. In this case, the aforementioned member driven by the dobby must be mechanically coupled to the swing lever driven by the dobby in an adjustable manner. As such, it creates a complex and relatively heavy structure. When the dobby machine acts, it suffers from intense acceleration. In this type of device, the "opening adjustment" is placed inside the dobby. As a result, the difficulty is close to the result. SUMMARY OF THE INVENTION A particular object of the present invention is to overcome such disadvantages and to provide a new stretching mechanism that is simplified in relation to conventional mechanisms and that allows easy adjustment of the opening 〇93127810 1329146 _ from this point of view, The invention relates to a stretching mechanism for controlling a heald frame of a loom equipped with a passive dobby machine, the mechanism comprising a flexible element for each heald frame, the flexible element extending Between a member driven by the dobby and a return spring assembly or positioner, and fastened to the member, on the assembly, and on the two return rods, each return rod is coupled to frame. This mechanism is characterized in that the shackle element is directly coupled to the oscillating rod of the dobby, the rod having a fixed oscillating amplitude and being provided with a suitable for matching with the reading device of the dorbi machine. The double swinging rod of the hook enables the swinging rod to be temporarily fixed; characterized in that the flexible element is also coupled to one of the return rods in an adjustable manner, and as a result, the distance between the flexible element and the pivot of the return rod The return rod that is adjustably coupled by the flexible element is provided with a contact element, wherein the rod is moved and fixed to the flexible element, and the contact element is shaped to abut in abutting manner A component of a component. Thanks to the invention, the opening adjustment means need not be provided at the water level of the dobby, which can be greatly simplified, since the device is offset at the level of one of the return rods, which is simpler. Structure and more accessible than components of the dobby. Use the mobile stop element to assist in adjusting the opening. The fact that it accepts a portion of the flexible element in an adjacent manner allows the contact element to be relatively large. The parasitic movement of the flexible element is avoided to the extent. In accordance with an advantageous but not essential aspect of the present invention, the mechanism is attached to one or more of the features of items 2 to 17 of the scope of the patent application. The invention also relates to a loom equipped with the aforementioned stretching mechanism. The looms are more reliable and less expensive than conventional looms. 93127810 6 1329146 [Embodiment] The loom M shown in Figs. 1 to 5 includes a passive dobby 1〇 equipped with a swinging lever 枢1 pivoted about a common axis 12. In Fig. 1, only the crucible 11 is fully visible, the shield 13 of the dobby 10 has been partially disassembled (to show the inside thereof), and the second rod u is partially visible. The lever 11 is provided with a double swing lever 14 carrying a hook 15 for engaging the brake hook 21 under the control of a control unit 22. The components of the component symbols 21 and 22 belong to the reading device 2 of the dobby 1〇. The other rods 11' and their equivalents are identically provided with a double swinging lever provided with a hook adapted to fit the reading device 2''. As indicated by the double arrow F, the 'rod 11 and the equivalent pivot about the axis 12 with a fixed amplitude of oscillation. It can be selectively braked to the center of the dead center of the stroke adjacent thereto by fitting the hooks 15 and 21. A flexible strand 30 is coupled to each of the rods and their equivalents, such as the strands for the rod 11, shown in Figure 1. This strand extends from each of the swing levers U or 11' toward the first return lever 40, the strands are fastened thereto, and then extend upwardly to the first return lever 50 and are likewise fastened thereto. Starting from the rod 50, the strands 30 extend toward a component or register 60 including a spring 61 for resiliently returning the rods u, 4 and 5 to a predetermined position of the elements. The path of the strands is linearly located between the rods 11 and 40, between the rods 40 and 50, and between the rod 5 and the assembly 60. In this way, it is not necessary to provide a return pulley on the path of the strand 30 except for the rods 40 and 5〇. Each of the rods 40 and 50 is connected to the frame 7Q provided with the heddle 71 by the two connecting rods 41 and 42, 51 and 52 individually 93127810 1329146, only a part of which is visible. In practical applications, the 'strand 30 is formed by a plurality of portions, that is, a first portion 3 extending between the rods 11 and 40 and a second portion 32 extending between the rods 4 and 5, and A third portion 33 extends between the rod 5〇 and the elastomer assembly 6〇. The portions 31 to 33 also constitute a flexible member, i.e., a member 30 extending between the rod 11 and the assembly 60 and sequentially carried on the rod and the member. - at the level of the first end 311 of the portion 31, a suspension ring 312 adapted to be fitted to the hook 112 provided on each of the rods 11 and their equivalents is provided, and each of the cups 11 and their equivalents are also provided There is a brake block 111 made of an elastomer or other material for carrying and guiding the strands 30. Each brake block 111 is substantially centered on a section of the axis 12. In a variation, the brake block U1 can be centered on the intermediate axis between each brake block 111 and the shaft line 12. The opposite end 313 of the Deng position 31 is coupled to a rod 40 that is pivotable about an axis. The rod is provided with an extension member 43 extending between the rod 40 and the rod 11 in a direction A-A substantially perpendicular to the direction B-B' of the portion 31. A stop element 415 is slidably fitted over the extension member 43, and as can be seen from a comparison of Figures 2 and 3, the position of the element 415 can be varied in the direction of the double arrow F2. The extension member 43 is formed by the two plates 4 and the four ribs, and the contact member 415 can be inserted and slid therebetween. In Fig. 2, the plate 43b has been omitted to make the drawings clearer. 93127810 1329146 The position of the stop element 415 on the extension 43 is varied such that it can vary the distance d between the portion 31 of the strand 30 adjacent the stop element 415 and the axis 45, thus assisting in adjusting the shed . As can be seen more clearly in Figure 4, the stop element 415 defines two slots 421 and 422, individually formed on the edge 423 of the contact element 415 with respect to the axis 45, and the stop element 415 that rotates toward this axis. On the edge 424. Each of the slots 421 and 422 is shaped such that a member 31a adjacent the end 31b of the portion 31 can be received in a simple abutment manner, the end 31b being crimped in a metal end piece 38. The component symbols 31c and 31d represent the single yarns of the component 31a which are individually adjacent to the edges 423 and 424 of the contact elements 415. Between the single yarns 31c and 31d, the member 31a is substantially reversed, i.e., following a path that is rotated at about 180°, adjacent to the member 425 of the contact member 415 that projects laterally with respect to the extension member 43. The member 425 also defines a slot 426 for receiving and guiding the bent portion 31e of the member 31a. In this manner, the member 31a of the portion 31 advances from the end 31b thereof in the slots 422, 425 and 421, the slot 421 The edge 423, such as the stop element 415, generally bulges. The edge 423 and the recess at the bottom of the groove 421 are rotated in the direction of the axis 45. Thus, regardless of the position of the contact member 415 along the extension member 43, and regardless of the position of the lever 40 with respect to the axis 45, the single yarn 31c can be effectively guided. Thus, during movement of the rod 40, the portion 31 does not tend to "oscillate" during the movement, and the distance d during this movement remains substantially constant. Thus, the associated heald frame can be precisely controlled. In this way, the application point of the effect of the traction h exerted on the rod 40 by the portion 31 of the strand 3〇 can be compensated somewhat in relation to the axis 45, thus adjusting the stroke of the frame 7〇 controlled by the rods 40 and 50, That is, adjust the opening of the looms. 〃 In practical applications, in the configuration of Figure 2, the edge 423 can be curved and approximately centered on the axis 45. The screw 416 can be received in a longitudinal housing formed in the stop element 415 and extends in a direction substantially perpendicular to the direction Α_Α. The screw is threaded through a tap made in a locking knob 436 which is received in the component 425. By the fastening applied to the extension 43 between the knob 436 and the head "" of the screw 416, the blocking of the contact element 415 can thus be achieved. "When the required adjustment is obtained, it is required When the distance d is defined between the strand 30 and the axis 45, the stop element 415 is fixed on the extension 43 due to the screw 416. To assist with this adjustment, the extension "can be without a scale (not shown) in). According to a variant (not shown) of the invention, the end of the strand portion 31 can extend only over the upper portion of the stop element 415 and be fixed at the level of the component farthest from the corresponding rod 11 On it. In this case, the stop element 415 includes a single groove portion 32 for receiving the strand portion 31 via its ends 321 and 322 to be individually coupled to the rods and 50. As for the portion 33, it is joined to the rod 50 and the assembly 60 disposed between the rods 40 and 50 via its respective end 331 and splicing 93127810 1329146. The main component 44 of the cup 40 is made of steel. It is a one-piece type having a projection or extension 43. The member 44 is provided with a section 46 for carrying the portion 32 of the strand 3 at the vicinity of its end 321 . This section can be made of a synthetic material. A hook 47 is also provided on the member 44 for fastening the portion 32. Section 46 defines region Z4 of rod 40, and portion 32 of element 3〇 thus extends as far as the end 2 of this portion 32 abuts against the area & The region & is located between the axis 45 and the frame 7A, i.e., below this axis, and the region Zs is disposed above the axis 45, i.e., relative to the frame 70 with respect to the axis 55. The rod 50 also defines a second region ZV portion 33 between the axis 55 and the frame 7〇 extending in a direction substantially perpendicular to the oscillation direction z_z of the frame 7〇. Due to the distribution of the regions Δ, Z5 and Z, 5, the portions 32 and 33 constituting the strands 30 do not cross the connecting rods 41 and 51, which can thus provide a width to give them good mechanical properties. In a practical application, the rod 50 is formed from two sections 56 and 56 of synthetic material defining a region and z'5' with a metal insert therebetween. The rods 40 and 50 can be considered to be "pulley rods" in view of their geometry. From the foregoing, by displacing the contact members 415 on the extension member 43, the adjustment of the opening produced by each of the frames 70 can be obtained. The one stop element and the extension member can be easily accessed from above the heald frame. One frame is different from the adjustment of the opening of the other frame. 93127810 11 1329146 In order to avoid the protrusions or extensions 43 provided on each of the rods 40 becoming too long, the rods 11 and equivalents may be provided in two sizes, i.e., in the geometry, individual brakes thereof The pivot radius R of the block 111 about the axis 12 is different between the two sets of rods. In the illustrated example, the bars are distributed in two groups, i.e., the pivot radius R of the brake block 111 of the rod type 11 is relatively small, and the corresponding radius R' of the rod 11' is relatively large. In practical applications, the rods having a larger radius R' are mounted on the rear side of the opening, i.e., on the warp beam side of the loom. The foregoing elements are each supported by a warp beam 80 which is horizontally aligned with the main axis X-X' of the shaft 80. The warp beam is mounted above the frame 70 of the loom and is provided with openings for the passage of the connecting rods 41 and 51. The rod 62 extends between a distal end 83 of the warp beam 80 and the assembly 60 and is provided with a system 63 for adjusting the tension of the spring 61 to provide an elastic effect of the adjustable assembly 60 on each of the flexible strands 30. . In the second form of the specific example of the present invention shown in Fig. 6, elements similar to those of the first specific example are the same as those described above. This particular example differs from the previous embodiment in that the second portion 32 of the flexible strand 30 extends in a region Z4 similar to the first return rod 40 of the first embodiment and from the second return rod 50. Between the second regions Z5 formed by the segments 56, the regions Zs are located between the pivot axis 55 of the stem 50 and the frame 70. In this manner, the portion 32 is substantially perpendicular to the oscillation direction Z-Z' of the frame 70. Furthermore, the spring assembly 60 disposed between the rods 40 and 50 is coupled to the rod 50 by a portion 33 that extends from the second section 56' of the rod 50 and that is associated with the axis 55 relative to the frame 70. The area Z'5 93127810 12 1329146 is between the component 60. The portion 33 is substantially perpendicular to the direction Z' between the elements 50 and 60. The contact element 415' fixed to the end 313 of the portion 31 of the element 30 can be slid along a projection 43 formed by the rod 40 as previously described, with the result that the pivot axis 45 of the rod and the strand 30 are here. The distance d between them can vary. The feature of the present invention is a striking element that slides over the extension of the return rod, which can equally well be applied to any form of striking element that can be moved relative to the rod on which it is mounted, the displacement can be Continuous or non-rule, translational or rotational. The technical features of the different specific examples can be combined within the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be more readily understood from the following description of the three exemplary embodiments of the mechanism according to the present invention, which will be described below, and other advantages thereof will be more clearly understood. Appearance, wherein: Fig. 1 is a schematic view showing a sill of a branch warp beam and a singular arm machine of a loom according to the present invention, the portion of which is partially exploded. Figure 2 is a diagram! A magnified view of the detail Π in the middle, and the lever that adjusts the position of the locator has been omitted so that the schema can be more clearly displayed. Figure 3 is a diagram similar to Figure 2 when the mechanism is used for a second day of use. Figure 4 is an enlarged partial cross-sectional view taken along line 1W of Figure 3 . Figure 5 is an enlarged partial cross-sectional view taken along line V-V of Figure 3 . 93127810 13 10 11 1Γ 12 13 14 15 20 21 22 30 31 31a 31b 31c 31d 31e 32 33 38 40 Fig. β is a second diagram of Fig. 1 according to a specific example of the present invention. Similar to the main component symbol description (negative) dobby (swing) rod; (fixed oscillation amplitude) rod (second) rod; (swing) rod; (fixed vibrating amplitude) rod (shared Axis shield double swing rod hook reading device (brake) hook control unit flexible element; (flexible) strand (flexible element) (first) part (flexible element) part end single yarn single yarn (bending ) (flexible element) (second) part (flexible element) (third) part (metal) end piece (first) return rod; (elastic recovery) rod 93278810 1329146 41 42 43 43a 43b 44 45 46 47 50 51 52 55 56 56, 60 61 62 63 70 71 80 83 111 connecting rod connecting rod extension; projection (extension) plate (extension) plate (rod) (main) part (pivot) axis; Axial section hook (second) return rod; (elastic recovery) rod connecting rod connecting rod (pivot) axis section section (spring) assembly; positioner (recovery) spring rod (tension adjustment) system frame heddle Warp beam (warp beam) end brake block; (flexible element ) fastening zone 93127810 1329146 112 hook 130 flexible element 140 return rod 311 (first) end 312 suspension ring 313 (opposite) end 321 (second part) end 322 (second part) end 331 (third part) end 332 (third part) end 415 contact element 416 screw; blocking means 416a (screw) head 421 (accepting, guiding) groove; (receiving) area; (convex) member 422 (receiving, guiding) slot ; (receive) area 423 (stopping member) edge 424 (stopping member) edge 425 (laterally protruding) member; groove 426 (accepting, guiding) groove; (receiving) region 436 locking knob; blocking means d Distance F1 pivoting direction; double arrow F2 (stopping element) moving direction; double arrow F4 pulling 93127810 1329146 织 loom R radius; distance R' radius; distance Z4 (first return lever) area
Zs (第二回復桿）區域 Z’5 第二區域；（第二桿）區域 A-A’ （延伸）方向 B-B’ （可撓元件）方向Zs (second return lever) area Z'5 second area; (second rod) area A-A' (extension) direction B-B' (flexible element) direction
X-X’ （水平）方向 Z_Z5 (枢架振盈）方向X-X’ (horizontal) direction Z_Z5 (pivot vibration) direction
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