201111571 六、發明說明： 【發明所屬之技術領域】 本發明有關一用於紡紗機之牽伸装置的頂部皮圈架， 其=有藉由彈簧彈力所加載之至少一導條皮圈，並張緊一 皮圈及在撓曲邊緣使該頂部皮圈撓曲，該導條皮圈 被固持在該頂部皮圏架之十字頭上。 【先前技術】 很嫁本申請案之申請專利範圍帛Μ的前言之頂部 圈架係由德國新型案第dE92 14 598 ui號所得知，其具 :緊：頂部皮圈及使一頂部皮圈撓曲之導條皮圈，且被 六在遠頂部皮圈架之十字頭上。該導條皮圈被以一彈菁 ，加載H被界定之張力下固持該頂部皮圈。為 導條皮圈’該頂部皮圈架係設有_模鑄型㈣，於 =中，該導條皮圈被導引於模製在該十字頭上之⑴ 通=據德國新型㈣DE 92 14 598 UU，該等㈣ ^專通道被配置在該皮圈架上 的運行路徑寬度内。該十字頭，十子頭上之頂部以 於該十# 之通道的深度在此被限讳 卞子碩在此位置之寬度0 其已經證實為不利的是在 皮圈架中Α φ由該先則技藝所習知之頂新 運動的二=相對於該導條皮圈的水平面之上下 的游隙丨的軸碩與通道間之有關製造 f、其成因係該導條皮圏相針节Λ 上之通道的以配置1 卩皮圈架的十字頭 圏被造成運動時、及反之當該;;：：皮圏所張緊之頂部皮 Ρ皮圏係停止時，總是發 4 201111571 生該撓曲邊緣的高度中之變化。 。發生在 力被不同地引導，而如該操作狀態的—函數中之張 之事實’即在該頂部皮圈之操作期間，二條=致以下 邊緣被向上拉’而當該頂部皮圈係停頓時， 2曲 往下徺曲。然』’與該底部皮圈橋接件或該底== 較，該導條皮圈之下緣的撓曲之高度 卞比 續地影響該隨後的紡絲過程又姑 呈 > 數，其持 識係很重要的。該撓曲邊緣應被定位使 ：的知 該底部皮ϋ彼此平行延伸 〜β皮圈及 丁、伸而相對於其高度變化，該定办 於操作期間僅只可被不輕易地決定或全然不能' 【發明内容】 接曲t發明之目的係因此提供-頂部皮㈣，其係藉由該 撓曲邊緣之撓曲的一小變動所區％，尤其當 刼作狀態中有一變化時。 圈之 這是根據本發明藉由t請專利範圍第丨項之特徵 所達成。 的。本發明之有利發展係該等巾請專利範圍附屬項之標 根據申請專利範圍第1項，其被提出彼此對應及被使 用於導引該導條皮圈的導引元件之至少一肖，係在該頂部 皮圈的運行路徑寬度之外配置於該十字頭上及該導條皮圈 ,與根據°亥先則技藝之配置作比較，此配置之實質優點 係破使用於導引該導條皮圈之導引元件可被製成為較長 的，據此該等導引元件被配置在該運行路徑寬度内側及在 201111571 該導條皮圈之下方4於此措施，與由該先前技藝所習知 之頂。卩皮圈架作比較，該導引長度可被顯著地加長故該 徺曲邊緣之上下運動的尺寸係減少至相對於其被使用於導 引之導引元件的尺寸所習知之函數相關游隙。由於該操作 狀態中之變化的結果，如上面關於該先前技藝所敘述者， 該撓曲邊緣之傾斜係藉由此配置實際上完全地被避免。因 為該頂部皮圈之操作狀態的變化，藉由減少該撓曲邊緣之 挽曲的大小，正面地影響該牵伸製程及該隨後的纺絲過程 之結果。 用於此目的，該十字頭上之至少一導引元件可被組構 成為一導引溝槽，而該導條皮圈上之至少一導引元件可被 紐構成為一導軌。 該導引溝槽或該導軌在此可為連續的。 另一選擇係，被組構成為至少一導引溝槽之導引元件 可具有一令斷部。 同樣地，被組構成為至少一導軌之導引元件可具有一 中斷部。 ' 選擇該導執及/或該導引溝槽的水平面中所提供之中 斷部的範圍，使得該導引溝槽及導軌之無中斷部份至少局 部地重疊。 如此，該至少一導引溝槽上及/或該至少一導軌上之 中斷部的配置應該被選擇，使得一被中斷導軌之所有該等 部份總是至少與該被中斷導引溝槽之其對應部份局部地嚙 合’而與該導條皮圈相對該十字頭之位置無關，以可靠地 6 201111571 避免該撓曲邊緣由於該操作狀態中之變化的結果之 於-較佳實施例中，該導引溝槽可在其水平面内延伸 超出該導條皮圈之縱向範圍，但被可使用之安裝 制。這進-步有利於該撓曲邊緣之上下運動的尺寸 ^ 的所敘述效應。 / > 特別地是，該導引溝槽可延伸直至該導條皮圈 邊緣。如此’肖導條皮圈超出該導引溝槽之突出部份 減少。如果在遠離該撓曲邊緣之導條皮圈的側面上之= 溝檜突出超過該導條皮圈側面’同理能被達成 突出部份。 乂该 於一較佳實施例中，該導條皮圈可被設計在具有—導 執之兩側面上，且該十字頭可被設計成具有對應之導弓丨溝 槽。此組構具有該等導條皮圈可為在兩側面上之設計中完 全相同的優點，其在較佳地是被設計為—射出成形零件的 零組件之生產成本上、及該頂部皮圈架之組裝具有一有 之效果。 該二導引溝槽之長度較佳地是可為不同的。該十字頭 之此組構簡化該頂部皮圈之組裝及拆卸。 該二導引溝槽之較短者在此將被配置在該十字頭之外 部邊緣上，以便能夠更輕易地施加及移去該頂部皮圈。 本發明將在下面以該等圖面中所顯示之實施例的輔助 被史詳細地敘述，其中： 【實施方式】 在圖1十之視圖顯示一頂部皮圈架丨，其包括一個十字 201111571 頭2與二個導條皮圈3。該十字頭2被放置在雙頂部滚筒6 …5上。該雙頂部滾筒6係以習知之方式被固持在— ㈣滾筒承載及加重支臂之導引件上。該等導條皮圈3係 與該二可旋轉地安裝式頂部滾筒6有關聯。 -未示出之頂部皮圈環行該頂部滚筒6及該導條㈣ 3。該頂部皮圈在此經由該導條皮圈3被導弓丨及使1在 曲邊緣16撓曲。該導條皮圈3之運行路徑寬度3係藉由配 置在該導條皮圈3而垂直於該頂部皮圈之運動方向的壁面4 所限制，如能被由圖1至3看出者，故該頂部皮圈能防止 由該導條皮圈3滑動。為張緊該頂部皮圈，該導條皮圈3 被以-弹簧彈力加載，該彈酱彈力係藉由—配置於該 頭2及該個別導條皮圈3間之彈酱7所產生。如圖3中所 被配置該十字頭2與該導條皮圈3之個別 二Si道中，以保護該彈著7免於纖維飛花。 導引该導條皮圈3,導引元件在該頂部皮圈的運行路 徑寬度之外側被模製在該圈的運仃路 中，該等導引元件被於所顯示之實施例 徑寬度外側的導配置在該頂部皮圈之運行路 使用於承納模製1=及導軌12。該等導引溝槽η被 在其自由端具有=:圈3上之對應導軌12。再者， 路徑寬度内側==二:轴㈣被配置在該運行 該頂部皮圏之運行路 "等勒碩13嘴合在亦位於 皮圈…的對應通道I'中。該導條 …在該等二:於其被組裝在該十字頭2上之位置 道15中之壁凹後方。這當該頂部皮圏被移 8 201111571 去時，防止該導條皮圈3能夠由該頂部皮圈 脫離。 心τ予頭2 如能被由圖2中之視圖看出，該 別導條史圈3之區域中具有—比該十字頭：之^置該個 小的水平範圍，其被用於緊 。區域較 用於緊固在該雙頂部滾筒6之軸心5 上。这疋由於以下事膏，gp Λ楠 貫Ρ在傳統頂部皮圈架1中，被用 “ 導條皮圈3之該等轴頭丨3及該等對應通道15传 目^其長度破限制，因它們被配置在該導條皮圈 十子頭::上之頂部皮圈的運行路徑寬度内側。 … 因為根據該等導引溝槽丨〗 宮疮^ 丨及在該頂部皮圈之運行路栌 描… 之本發明的配置，該等導引渣 槽U及該等對應導軌12在設 1患 j. 十中了為比根據該先前枯蔽 在该頂部皮圏之運行路徑寬 技π _ε j的6亥專通迫1 5及該犛缸 頭〖3較長。再者，如可被 饭田圖3看出，該等導執201111571 VI. Description of the Invention: [Technical Field] The present invention relates to a top apron frame for a drafting device for a spinning machine, which has at least one guide apron loaded by a spring force, and The apron is tensioned and the top apron is flexed at the flexing edge, and the bead of the guide is retained on the crosshead of the top derrick. [Prior Art] The top ring frame of the foreword of the patent application scope of the application is known from the German new case dE92 14 598 ui, which has: tight: top apron and scratch a top apron The curved guide apron is placed on the crosshead of the acros frame on the far top. The guide apron is held by the elastic axe, and the H is defined under the tension to hold the top apron. For the guide apron 'the top apron frame is provided with _ die-cast type (four), in the =, the guide apron is guided on the crosshead (1) pass = according to the German new (four) DE 92 14 598 UU, the (4) ^ dedicated channel is disposed within the width of the running path on the apron rack. The crosshead, the top of the head of the tenth, is such that the depth of the passage of the tenth is limited to the width of the position of the scorpion at this position. It has been confirmed to be disadvantageous in the apron frame by the first technique. The second of the new movement of the conventional top = relative to the horizontal plane of the guide apron above the axis of the 硕 硕 与 与 与 与 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造When the crosshead of the 1 卩 apron frame is caused to move, and vice versa;;:: When the top of the skin is tightened, the top of the skin is always stopped 4 201111571 The change in height. . Occurs when the force is directed differently, and the fact of the sheet in the function state, ie during the operation of the top apron, two bars = the following edges are pulled up while the top apron is paused 2 songs are twisted down. However, compared with the bottom apron bridge or the bottom ==, the height of the deflection of the lower edge of the apron of the guide strip continually affects the subsequent spinning process and is a number of degrees. very important. The flexing edge should be positioned such that it is known that the bottom skins extend parallel to each other ~β aprons and dents and extensions with respect to their height variations, which can only be determined not easily or completely at the time of operation. SUMMARY OF THE INVENTION The purpose of the invention is to provide a top skin (four) which is % of the deflection by the deflection of the flexing edge, especially when there is a change in the state of the operation. This is achieved in accordance with the present invention by the features of the third item of the patent scope. of. Advantageous developments of the present invention are in accordance with the scope of claim 1 of the patent application, which is proposed to correspond to each other and to at least one of the guiding elements for guiding the apron of the guide strip. Arranging on the crosshead and the guide apron outside the width of the top apron, compared with the configuration according to the technique, the substantial advantage of this configuration is used to guide the guide strip. The guiding elements of the ring can be made longer, whereby the guiding elements are arranged inside the width of the running path and below the apron of the guide bar 4 201111571, as measured by the prior art Know the top. In comparison to the racquet frame, the guiding length can be significantly lengthened so that the size of the upper and lower movements of the curved edge is reduced to a function-related clearance relative to the size of the guiding element used for guiding. . As a result of the variation in this operational state, as described above with respect to this prior art, the tilt of the flexing edge is virtually completely avoided by this configuration. Because of the change in the operational state of the top apron, the result of the drafting process and the subsequent spinning process is positively affected by reducing the extent of the flexing of the flexing edge. For this purpose, at least one guiding element on the crosshead can be configured as a guiding groove, and at least one guiding element on the apron of the guiding strip can be formed as a guide rail. The guiding groove or the guide rail can be continuous here. Alternatively, the guiding elements configured to form at least one guiding groove may have a breaking portion. Likewise, the guiding elements that are configured as at least one rail can have an interruption. 'Selecting the extent of the guide and/or the interruption provided in the horizontal plane of the guide groove such that the uninterrupted portion of the guide groove and the guide rail at least partially overlap. Thus, the configuration of the interrupting portion on the at least one guiding groove and/or the at least one guiding rail should be selected such that all of the portions of the interrupted guiding rail are always at least with the interrupted guiding groove. The corresponding portion is partially engaged 'with respect to the position of the guide apron relative to the crosshead to reliably avoid the result of the change in the operating state due to the change in the operating state in the preferred embodiment - 201111571 The guiding groove may extend beyond the longitudinal extent of the guide apron in its horizontal plane, but may be mounted for use. This further step facilitates the stated effect of the dimension ^ of the downward movement of the flexing edge. / > In particular, the guiding groove can extend up to the edge of the guide apron. Thus, the protrusion of the shawr strip beyond the guiding groove is reduced. If the gully protrudes beyond the side of the guide apron on the side of the guide apron away from the flexing edge, the protrusion can be achieved. In a preferred embodiment, the guide apron can be designed to have both sides of the guide, and the crosshead can be designed to have a corresponding guide groove. The configuration having the guide aprons can be an identical advantage in the design on both sides, which is preferably designed to produce the components of the injection molded part, and the top apron The assembly of the frame has a certain effect. The length of the two guiding grooves may preferably be different. This configuration of the crosshead simplifies the assembly and disassembly of the top apron. The shorter of the two guiding grooves will here be placed on the outer edge of the crosshead so that the top apron can be applied and removed more easily. The invention will be described in detail below with the aid of the embodiments shown in the drawings, wherein: [Embodiment] A top apron frame is shown in the view of Fig. 10, which includes a cross 201111571 head 2 with two guide strips apron 3. The crosshead 2 is placed on the double top rollers 6 ... 5 . The double top roller 6 is held in a conventional manner on the guide member of the (four) roller carrying and weighting arms. The guide aprons 3 are associated with the two rotatable mounted top rollers 6. - A top apron, not shown, loops the top roller 6 and the guide bar (4) 3. The top apron is here guided by the guide apron 3 and deflects 1 at the curved edge 16. The running path width 3 of the guide apron 3 is limited by the wall surface 4 disposed in the direction of movement of the top apron 3 in the guide apron 3, as can be seen from Figures 1 to 3, Therefore, the top apron can be prevented from sliding by the guide apron 3. To tension the top apron, the guide apron 3 is loaded with a spring force which is produced by the magazine 7 disposed between the head 2 and the individual guide apron 3. The crosshead 2 and the individual two Si tracks of the guide apron 3 are arranged as shown in Fig. 3 to protect the bullet 7 from the fiber fly. Guiding the guide apron 3, the guiding element is molded in the winding path of the ring on the outer side of the running path width of the top apron, the guiding elements being outside the diameter of the embodiment shown The guiding arrangement is used in the running path of the top apron for the receiving molding 1 = and the guide rail 12. The guide grooves η are provided at their free ends with corresponding rails 12 on the circle 3. Furthermore, the inside of the path width == two: the axis (four) is arranged in the operation of the top skin. The "Luoshuo 13 mouth is also located in the corresponding channel I' of the apron... The bar ... is in the second: behind the recess in the position 15 which is assembled on the crosshead 2. This prevents the guide apron 3 from being detached from the top apron when the top skin is removed. The heart τ is given to the head 2 as can be seen from the view in Fig. 2, which has a smaller horizontal extent than the crosshead: it is used for tightness. The area is for fastening to the shaft center 5 of the double top drum 6. This is due to the following paste, gp Λ Ρ Ρ in the traditional top apron frame 1, is used for "the apron head 3 of the guide apron 3 and the corresponding channel 15 pass the length limit, Because they are placed in the apron of the guide apron:: on the inside of the top apron of the running path width. ... Because according to the guiding groove 丨 宫 宫 ^ 丨 丨 丨 丨 丨 丨 丨 丨 丨Sweeping the configuration of the present invention, the guiding slag grooves U and the corresponding guide rails 12 are in the case of a j. ten in the operating path π ε based on the previous dipping in the top skin J's 6 Hai special forced 1 5 and the 牦 cylinder head 〖3 longer. Again, as can be seen in Iida 3, the guide
蚝延伸進入該導條皮圈3的撓曲 月'J 導停皮圈3 $ ★ φ 、 之正面附近，故該 =皮圈3之大出超過該導軌11係減少。由_措施 料條皮圈3的撓曲邊緣丨6 _包， ^ σ L < Γ此的上下運動之大小俜仍 然僅只大約為該等導引元件 係仍 水丄 沈其作用所造成的游隙之吾 值。s圾成該頂部皮圈運動或告 m i 又田該頂部皮圈被停止時，由 於^喿作狀態中之變化的結 〜 子由 藉此貫際上防止該撓曲邊 緣16由於發生張力之傾斜 規曲邊 數股被不同地引導。 4張力係如該操作狀態之函 該十字頭2之導引溝槽 栌Φ、土汹：—u 月匕如超出該撓曲邊緣1 6戎 超出退離該撓曲邊緣16之側 次 面的可使用安裝空間之函數般 201111571 被加長。 圖4顯示一頂部由 一 圈‘ 1 ’之修改實施例的平面圖，且 圆5顯示根據該第-督 實施例且根據圖4的導條皮圈之平面 圖。於此實施例中，在兮… μ十子頭2’上之導引溝槽n，與在遠 離該導條皮圈3,之撓曲邊鎿a 定 邊緣1 6的側面上之導執1 2'的形式 中’該等導引元件被加县，上，丄η 如可由圖4及5中被看出者。 該優點係藉由最佳利用# π Αιτ丄 λ 和用該頂部皮圈架Γ之可用的後方安裝 空間’藉著該等導引元株彳〗， 牛1、12之加長超出該十字頭2, 之寬度，當該操作狀態中有一 τ ^ 超出该專導引元件11，、12, 間之現存游隙的變化時，兮後I咖 ' ^導條皮圈3 ’之翹起傾斜能被減 再者，圓6顯示_被減笛-奋：, 很锞第二實靶例之導條皮圈3，，的立 體圖，該導條皮圈3，，之導轨 导軌12係至少在一位置藉由壁凹 10所中斷。在此該導引溝槽1 再摺u中之導執U，，所顯示的中斷 式組構導致二點鄰接， 丨尔 k微之修改，然而，其確保 與具有根據圖1至5之遠墙彳道灿1Λ ^ _王）之運續式導軌12及12，的導條皮圈3、 3’之變型相同的穩定性。同樣地’該導引溝槽及/或該導執 亦可破設有至少一中斷部或壁凹1〇。該導弓丨溝槽之中斷部 可為-材料之壁凹，其不會阻礙該連續式導軌Η、Η，之滑 動移位性，且亦不會在該被巾斷料？丨溝槽之水平面中阻 礙藉由一壁凹10所中斷之導軌12，，的滑動移位性。 參考圖7,其顯示根據圖i的頂部皮圈架「之第四實 施例，該十字頭2,具有導引溝槽u，，該等導引溝槽係在各 部份中藉由延伸於該水平面中之壁凹18所中斷。於此變型 10 201111571 I丨广：條皮圈3之連續式導軌12亦僅只停靠在該導引溝 槽U的無中斷部份上之二位置。 最後’該二變型的'組合係亦可能的，其中該導軌及 該導引㈣兩者皆具以壁凹之形式的中斷部。 於知作期間及於該操作狀態之變化期間，用於穩定根 據該第三或第四實施例之導條皮圈或來自該二實施例之 ，條皮圈及十字頭的組合之先決條件，係該等導引元件總 ' 使得該導條皮圈相對於該水平面之傾斜可被避免 的方式彼此接觸。 【圖式簡單說明】 圖1顯示一根據本發明的頂部皮圈架之立體圖； 圖2顯示根據圖丨的頂部皮圈架之前視圖； 圖3顯不根據圖2沿著剖線A_A的頂部皮圈架之剖面 圖4顯示一頂部皮圈架之第二實施例的平面圖； 圖5顯不一根據該第二實施例且根據圖4的導條皮圈 之平面圖； 圖6顯示一根據該頂部皮圈架之第三實施例的導條皮 圈之立體圖； 圖7顯示根據第四實施例的頂部皮圈架之立體圖。 【主要元件符號說明】 1 ' 11 頂部皮圈架 2、 2’ 十字頭 3、 3'、3" 導條皮圈 201111571 4 壁面 5 轴心 6 雙頂部滾筒 7 彈簧 8 互相咬合之圓形通道 9 互相咬合之圓形通道 10 壁凹 11 ' 11’ 導引溝槽 12、 12'、12’， 導軌 13 軸頭 14 問扣凸出部 15 通道 16 撓曲邊緣 18 壁凹 12The 蚝 extends into the apron 3 of the guide bar. The month 'J leads the apron 3 $ ★ φ , near the front side, so the apron 3 is larger than the guide rail 11 is reduced. By the _ measure strip aperture 3 flexing edge 丨6 _ bag, ^ σ L < Γ this up and down movement of the size 俜 still only about the navigation of the guiding element system is still caused by the action The value of the gap. s trash into the top apron movement or sue mi and the top apron is stopped, because the knot in the state of the 喿 〜 〜 子 子 子 子 子 子 子 子 子 子 子 子 子 子 子 该 该 该 该 该The number of sides of the regulation is guided differently. 4 tension is as the function of the operating state of the crosshead 2 of the guiding groove 栌 Φ, soil 汹: - u 匕 超出 beyond the flexing edge 16 6 戎 beyond the side of the retreating edge 16 It can be lengthened by using the function of the installation space like 201111571. Figure 4 shows a plan view of a modified embodiment with a top by a circle '' and a circle 5 showing a plan view of the guide apron according to the first embodiment and according to Figure 4. In this embodiment, the guide groove n on the 十... μ 子 头 head 2', and the guide 1 on the side away from the edge 166 of the guide strip apron 3 In the form of 2', the guiding elements are added to the county, upper, and 丄η as can be seen in Figures 4 and 5. This advantage is achieved by optimally utilizing # π Αιτ丄λ and the available rear mounting space of the top apron frame by means of the guiding elements, the length of the cattle 1, 12 is beyond the crosshead 2 , the width, when there is a τ ^ in the operating state beyond the change of the existing play between the special guiding elements 11, 12, the tilting tilt of the rear I 3 ' guide strip apron 3 ' can be Subtraction, circle 6 shows _ Descending - Fen:, very 锞 second solid target guide strip apron 3,, the perspective view, the guide apron 3, the guide rail 12 is at least A position is interrupted by the recess 10. Here, the guiding groove 1 is folded into the guiding U in the u, and the displayed interrupted configuration results in a two-point abutment, which is modified, however, it is ensured to have a distance according to FIGS. 1 to 5 Wall 彳 灿 灿 Λ Λ 续 导轨 导轨 continuation rails 12 and 12, the guide strip aprons 3, 3' variants of the same stability. Similarly, the guiding groove and/or the guide may be broken with at least one interruption or recess. The interruption of the guide bow groove can be a wall recess of the material, which does not hinder the sliding displacement of the continuous guide rails, turns, and does not break the towel. The sliding displacement of the guide rail 12 interrupted by a recess 10 is hindered in the horizontal plane of the weir groove. Referring to Figure 7, there is shown a fourth embodiment of the top apron frame according to Figure i, the crosshead 2 having a guiding groove u extending in each portion by The recess 18 in the horizontal plane is interrupted. This variant 10 201111571 I: The continuous guide rail 12 of the apron 3 also rests only in the two positions on the uninterrupted portion of the guiding groove U. The combination of the two variants is also possible, wherein both the guide rail and the guide (4) have an interruption in the form of a recess. During the change and during the change of the operating state, The guide strip apron of the third or fourth embodiment or the combination of the strip apron and the crosshead from the two embodiments is such that the guiding elements always make the guide apron relative to the horizontal plane The tilting can be avoided in a manner that avoids each other. [Schematic Description of the Drawings] Figure 1 shows a perspective view of a top apron frame according to the present invention; Figure 2 shows a front view of the top apron frame according to the drawing; Figure 2 shows a top section of the top apron frame along the line A_A. 2 is a plan view of a second embodiment of the apron frame; FIG. 5 is a plan view of a guide apron according to the second embodiment and according to FIG. 4; FIG. 6 shows a third embodiment according to the top apron frame Fig. 7 is a perspective view of the top apron frame according to the fourth embodiment. [Main component symbol description] 1 '11 top apron frame 2, 2' crosshead 3, 3', 3" Strip apron 201111571 4 Wall 5 Axis 6 Double top roller 7 Spring 8 Circular channel 9 intertwined with each other Circular channel 10 with each other 10 recesses 11 '11' Guide grooves 12, 12', 12', guide rail 13 Shaft head 14 shackle projection 15 channel 16 flexing edge 18 recess 12