M357490 五、新型說明： 【新型所屬之技術領域】 本創作係有關於一種樞紐結構，特別是指一種用以設 置於底座與顯示器之間的樞紐結構。 【先前技術】 習知的枢紐結構，用以設置於底座與顯示器之間，如 公告於2 0 0 3年5月2 1曰的中華民國專利申請案號第 9 1 2 1 3 81 1號所揭示，係以固定片與結合片分別組 裝於底座與顯示器，該樞紐結構的樞軸上除了套設有可產 生扭力的墊片外，還另套設有一定位片’該定位月的頂緣 朝一側突伸有一擋突，該定位片相對該樞軸係呈固定而可 與該樞軸同步轉動，該固^片設有供該枢軸穿設的框孔， 且該固的-側周緣形成有—缺槽。上述樞紐結構在祖 裝時，定位片之播突係突伸於該固定片的缺槽，以形成一 限位機制，並使得結合於顯示器的結合片可藉該缺槽的内 壁擔止該定位片之難，而在—定的轉動角度限 俯仰角度的调整。 逆订M357490 V. New Description: [New Technology Field] This creation is about a hub structure, especially a hub structure that is placed between the base and the display. [Prior Art] A conventional hub structure is provided between a base and a display, such as the Republic of China Patent Application No. 9 1 2 1 3 81 1 published on May 21, 2003. Disclosed, the fixing piece and the bonding piece are separately assembled on the base and the display, and the pivot of the pivot structure is provided with a positioning piece for the positioning edge of the positioning month. A blocking protrusion is protruded toward one side, and the positioning piece is fixed relative to the pivoting shaft and can rotate synchronously with the pivot shaft. The fixing piece is provided with a frame hole through which the pivot shaft is pierced, and the solid-side peripheral edge is formed. Yes - missing slots. When the pivot structure is in the ancestral structure, the positioning protrusion of the positioning piece protrudes from the notch of the fixing piece to form a limiting mechanism, and the bonding piece coupled to the display can support the positioning by the inner wall of the notch The difficulty of the film, and the adjustment of the pitch angle in the fixed rotation angle. Reverse order
複雜 、、”口伸《V組装構件數量較多，組 极高。再者’樞軸與定位片中：的： 有空隙，使得㈣叫該定位片轉心非: 題之可改善，乃潛心研究 设計合理且有效改善上述 緣疋，本創作人有感上述問 旅配合學理之運用，而提出—種 問題之本創作。 【新型内容】 3 M357490 本創，之主要目的，在於提供—餘祕構，其在產 生扭力的第-、第二塾片上分別設置有限位結構，藉此限 制組裝在結合架之顯示器的俯仰角度。 為了達成上述之目的，本創作係提供一種樞紐結構， 匕括 ©疋架’ 5亥固定架設有一固定片，一樞軸，該樞 抽係可轉動地設置於該固定架的固定片，·一结合架，該結 it:結合片，該結合片固設於該樞軸，以使該結合 ::姆咖定架轉動；-第-塾片，該第^墊片係固設 1第架的固定片且套設於該樞軸，該第一墊片設有一 合架的結合片且套設§亥第二塾片係固設於該結 架同舟麻 轴，以使該第二墊片與該結合 第二墊η5亥第一塾片係相鄰地設置於該第一塾片且該 面7=::”片之第-摩擦面的第二摩擦 η μ fp ^ ^ 片〃、該第—墊片分別間隔地環設有相互 數個第一限位結構與多數個第二限位結構。 ，第—塾片鱼ί”下有益效果：本創作拖紐結構係分別在 二限上多數個⑽ 應限位’而限制⑽合架第二限位結構相互對 此本創作無需另外在樞軸上組裳定器的俯仰角度，因 ，具性’且具有較強的擋止:^ 下有關本創作之詳細說：歧技術内容，請參 ^考與說明用，並非用來《•本創=，t而所附圖式僅提 【實施方式】 本旬作加以限制者。 4 M357490 —請參閱第-圖至第三圖所示，為本創作樞紐結構之第 -貫施例’包括：一固定架工、一樞軸5、一 -第-塾片2、一第二塾片4、一墊片組6、；:螺巾:7 〇 該固定架！係用以組褒於底座（圖未示），該 設有一固定片丄〇 ’該固定片工〇穿設有一樞 3二二亦可如第一圖所示的在固定架1的兩側皆 :有口疋片1 Q。該固^片！ ◦設有多數個扣槽丄2，盆 d部^扣槽1 2係、位於該固U 1 〇周緣，而其他部 伤的扣槽12係位於該固定片丄〇内部。 黛一=：：塾片（WaSher) 2設有一第一摩擦面22，該 墊片2周緣t折延伸有多數個扣片2丄，該等扣片2 ί對應扣接於該固定片的扣槽12,使該第-墊片 於該固定架i的固定片1()。在财係以二個扣片 Z1為例，但未有限定。 ，結合架3係用以組裝於顯示器（圖未示），該結合 :片心側設有一結合片3 ◦’圖中係以兩侧皆設有結 於該樞軸5的③人:匕穿設有-相對應 D的、、口口孔3 1，在本貫施例中該結合孔3 1為 “二用以供該_ 5穿設’使枢轴5無法相對該結合 例;曰3Γ有多數個扣槽32，在本實施 緣Μ曰H 個且皆位在該結合片30的周 未^ 定’扣槽3 2亦可設在該結合片3 〇内部（圖 該第 二 墊片（washer) 4係相鄰地設置於該第一墊片 5 M357490 2，且該第二墊片4設有一第二摩擦面4 2 ,該第二摩擦 面42係貼靠該第一墊片2之第一摩擦面22。該第二墊 片4周緣’延伸有多數個扣片4 1，該等扣片4 1係對 應扣接於該結合片3 〇的扣槽3 2 ’使該第二墊片4固設 於該結合架3的結合片3 0，藉此使該第二墊片4可與該 結合架3同步轉動。在圖中係以二個扣片4 i為例，但未 有限定。 ·- 此外，上述的第一墊片2與第二墊片4係分別間隔地 • 壞設有相互對應的多數個第一限位結構2 3與多數個第二 限位結構4 3。此處第一限位結構2 3與第二限位結構4 3的數量皆為四個，但不限定。 μ配合參閱第四圖所示，該第—限位結構2 3為凸塊 ’該凸塊係由該第-塾片2的第—摩擦面2 2往該第二墊 片4的方向凸設形成。而該第二限位結構4 3為凹槽，該 凹槽係由該第二墊片4的第二摩擦面4 2凹設形成，用以 對應收容該凸塊，且該凹槽兩端的内壁可分別播止該凸塊 ，使该第-限位結構2 3與該第二限位結構4 3相互限 ，藉此限制該第二墊片4的轉動角度。 或者，該第一限位結構2 3為由該第一塾片2的第一 2凹設形成的凹槽（圖未示），該第二限位結構 4::由該第二墊片4的第二摩擦面4 2往該第一墊片2 容二Γ:成：凸塊（圖未示），該凹槽同樣可對應收 塊’且以其兩端的内壁分別播止該凸塊，如此亦可 限位，構2 3與該第二限位結構4 3相互限位， 亚藉此限制该第二墊片4的轉動角度。 6 M357490 上述該第一墊片2設有四個該第一限位結構2 3以及 該第二墊片4設有四個該第二限位結構4 3的組合是本案 較佳的實施方式。但包括該第一墊片2及該第二墊片4分 別設置二個、三個、或五個以上的第一限位結構2 3與該 第二限位結構4 3的組合，皆為本案可行的實施例，並均 可由本案上述之四個第一限位結構2 3與四個第二限位結 - 構4 3而無歧異地得知。 . 該樞軸5係穿設於該固定架1的枢孔1 1及該結合架 φ 3的結合孔31，使該樞軸5可轉動地設置於該固定片1 ' 0。此外，該第一墊片2與該第二墊片4係位在該固定片 1〇與該結合片3 0之間且分別套設於該樞軸5。 該樞軸5—端具有一抵靠於該固定片10的檔板51 ，該螺帽7係套設且固定於該樞軸5。該墊片組6係套設 於該柩轴5且夾設於該螺帽7與該結合架3的結合片3 0 之間，令該樞軸5固設於該結合片3 0，從而使得該結合 架3可相對該固定架1轉動，並藉此令該顯示器相對該底 φ 座轉動；藉由上述之組成以形成本創作之樞紐結構。 如上述構造實施時，係將顯示器裝設於該結合架3上 (圖未示），當使用者欲進行角度調整時，可對該結合架 3施以一適當力量，使該結合架3相對該固定架1進行轉 動。當該結合架3轉動時，將同步帶動該第二墊片4相對 該第一墊片2轉動，藉此使得該第二墊片4之第二摩擦面 4 2與該第一墊片2之第一摩擦面2 2相互摩擦而產生扭 力，俾以對該結合架3之轉動提供一穩定摩擦力，使轉動 能平穩進行。而且當該第二墊片4轉動時，即可藉由該等 7 M357490 第二限位結構4 3與該第-墊片2之多數個第—限位 2 3相互對應限位，使得該結合架3轉動受阻，而限: 結合架3只能在一定的角度範圍内進行俯仰角度的調整了 請參閱第五圖及第六圖所示，為本創作拖紐結構: ，實施例，其中相同之元件仍與第一實施例採用相同的標 唬表不，該第二實施例與第一實施例之差異處在於：丁 該第-墊片2之第-限位結構23，❺數量與該第二 墊片4之第二限位結構4 3的數量皆為三個，每一第— 位結構2 3’係、包含一第一凸塊23丄’及—與第—凸‘ 231，相鄰設置的第一凹槽232，，其中該第一凸塊 23 1係由該第一墊片2的第一摩擦面22往該第二墊 片4的方向凸設形成，該第一凹槽232，係由該第一墊 片2的第一摩擦面2 2凹設形成。 母一第一限位結構4 3包含一第二凹槽4 3 1，及一 與該第二凹槽431，相鄰設置的第二凸塊432，，其 中該第二凹槽43丄，係由該第二墊片4的第二摩擦面4' 2凹設形成’該第二凸塊4 3 2，係由該第二墊片4的第 一摩擦面4 2往該第一墊片2的方向凸設形成。 ，請配合參閱第七圖及第八圖所示，該三第一凹槽23 2，係對應收容該三第二凸塊4 3 2，，而且該三第二凹 槽431，係對應收容該三第一凸塊23丄，。各第一凹 槽2 3 2’兩端的内壁可分別擋止各第二凸塊4 3 2，, 而且各第二凹槽431，兩端的内壁可分別擋止各第一凸 塊2 3 1 ，藉以形成六個位置的限位機制，而得以更強 的力量限制該第二墊片4的轉動。 8 M357490 ^此外，在本實施例中由於第一墊片2與第二墊片4實 夤上具有完全相同的結構，因此只要開一套模具即可製造 出第墊片2 (或第二墊片4)，而在組裝時，則使兩者 相互錯開—角度地相鄰設置，從而使各第-凸塊2 3 γ 一凸塊43 2’分別對應收容於各第二凹槽4 3 1， 第凹槽232内，如此-來即可節省模具的製造成 本且不會造成混料的問題。Complex, "mouth extension" V assembly components are large, the group is extremely high. In addition, the 'pivot and positioning piece:: There is a gap, so (4) called the positioning piece to turn the heart: the problem can be improved, Dedicated research design is reasonable and effective to improve the above-mentioned reasons. The creator feels that the above-mentioned travel and travel with the use of academic theory, and proposes the creation of a problem. [New content] 3 M357490 The main purpose of this creation is to provide - The secret structure is provided with a finite structure on the first and second cymbals that generate the torque, thereby limiting the pitch angle of the display assembled on the yoke. To achieve the above purpose, the present invention provides a hub structure, The truss '5 hai fixed frame is provided with a fixing piece, a pivoting shaft, and the pivoting system is rotatably disposed on the fixing piece of the fixing frame, and a binding frame, the connecting piece: the bonding piece, the bonding piece is fixed In the pivot, so that the combination:: the muffled rotation; - the first piece, the second gasket is fixed to the first frame of the fixed piece and sleeved on the pivot, the first spacer There is a combined piece and a second piece of § The second spacer is fixed on the first slab and adjacent to the first cymbal system, and the surface is disposed on the first cymbal and the surface 7=:: The second friction η μ fp ^ ^ of the first friction surface, the first spacer is spaced apart from each other by a plurality of first limiting structures and a plurality of second limiting structures. The beneficial effect of the first---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- The pitch angle of the upper set of the clipper, because of the 'sexual' and has a strong stop: ^ Under the detailed description of the creation: the technical content, please refer to the test and description, not used for "• this creation =, t and the drawings only refer to [Embodiment] This is a limitation. 4 M357490 - Please refer to the first to third figures, the first embodiment of the creative hub structure' includes: A fixed frame, a pivot 5, a first - a second piece 2, a second piece 4, a spacer set 6,;: a screw: 7 〇 the fixed frame! The figure is not shown. The fixing piece is provided with a pivot 3 2 or 2, and the two sides of the fixing frame 1 can be arranged as shown in the first figure: the mouth piece 1 Q. The fixing piece is provided with a plurality of buckle grooves ,2, and the bowl d part ^ buckle groove 12 2 is located at the periphery of the solid U 1 〇, and the other buckled groove 12 is located in the fixed piece 丄〇黛一=::WaSher 2 is provided with a first friction surface 22, and the periphery of the spacer 2 is extended by a plurality of buckles 2, and the buckles 2 ί are correspondingly fastened to the fixing piece. The buckle groove 12 is such that the first spacer is fixed to the fixing piece 1 of the fixing frame i. The two fastening pieces Z1 are exemplified in the financial system, but are not limited. The binding frame 3 is used for assembling the display. (not shown), the combination: a core piece side is provided with a joint piece 3 ◦' in the figure is provided with three people attached to the pivot shaft 5 on both sides: the piercing is provided with - corresponding D, mouth In the present embodiment, the coupling hole 31 is "two for the _5 to be worn" so that the pivot 5 cannot be opposed to the combination; the 曰3 has a plurality of buckles 32, in this embodiment The edge of the joint piece 30 may be disposed in the inner side of the joint piece 3 (the second washer 4 is adjacently disposed on the edge of the joint piece 30). The first spacer 5 is M357490 2 , and the second spacer 4 is provided with a second friction surface 42 2 , and the second friction surface 42 is abutted against the first friction surface 22 of the first spacer 2 . The periphery of the spacer 4 extends with a plurality of clips 4 1, such The second piece 4 is fixed to the coupling piece 30 of the binding frame 3, so that the second spacer 4 can be The binding frame 3 rotates synchronously. In the figure, the two fastening pieces 4 i are taken as an example, but are not limited. In addition, the first spacer 2 and the second spacer 4 are spaced apart from each other. There are a plurality of first limiting structures 23 and a plurality of second limiting structures 43. The number of the first limiting structures 23 and the second limiting structures 43 is four, but not μ 。 参阅 μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ Protrusion is formed. The second limiting structure 43 is a recess formed by the second friction surface 42 of the second spacer 4 for correspondingly receiving the protruding block, and the inner wall of the two ends of the groove The bumps can be respectively broadcasted to limit the first constraining structure 23 and the second constraining structure 43 to each other, thereby limiting the rotation angle of the second spacer 4. Alternatively, the first limiting structure 23 is a groove (not shown) formed by the first 2 recess of the first cymbal 2, and the second limiting structure 4: by the second spacer 4 The second friction surface 4 2 is received by the first gasket 2 into a bump (not shown), and the groove can also correspond to the block 'and the bumps are respectively stopped by the inner walls of the two ends thereof. In this way, the position limit 2 and the second limit structure 4 3 are mutually constrained, thereby limiting the rotation angle of the second spacer 4 . 6 M357490 The first spacer 2 is provided with four first limiting structures 23 and the second spacer 4 is provided with four combinations of the second limiting structures 43 is a preferred embodiment of the present invention. However, the first spacer 2 and the second spacer 4 are respectively provided with two, three, or more than five combinations of the first limiting structure 23 and the second limiting structure 43. The possible embodiments can be known without any difference from the above-mentioned four first limiting structures 23 and the four second limiting structures 43. The pivot shaft 5 is disposed through the pivot hole 1 1 of the fixing frame 1 and the coupling hole 31 of the coupling frame φ 3 so that the pivot shaft 5 is rotatably disposed on the fixing piece 1 '0. In addition, the first spacer 2 and the second spacer 4 are positioned between the fixing piece 1 〇 and the coupling piece 30 and are respectively sleeved on the pivot shaft 5. The pivot 5 - end has a baffle 51 abutting against the fixing piece 10 , and the nut 7 is sleeved and fixed to the pivot 5 . The spacer group 6 is sleeved between the nut 5 and sandwiched between the nut 7 and the coupling piece 30 of the coupling frame 3, so that the pivot 5 is fixed to the coupling piece 30, thereby The binding frame 3 is rotatable relative to the fixing frame 1 and thereby rotates the display relative to the bottom φ seat; by the above composition to form the hinge structure of the present invention. When the above configuration is implemented, the display is mounted on the binding frame 3 (not shown). When the user wants to perform the angle adjustment, the binding frame 3 can be applied with an appropriate force so that the binding frame 3 is opposite. The holder 1 is rotated. When the binding frame 3 rotates, the second gasket 4 is synchronously rotated relative to the first gasket 2, thereby causing the second friction surface 42 of the second gasket 4 and the first gasket 2 The first friction surface 2 2 rubs against each other to generate a torsion force, which provides a stable frictional force to the rotation of the coupling frame 3, so that the rotation can be smoothly performed. Moreover, when the second spacer 4 is rotated, the 7 M357490 second limiting structure 43 and the plurality of first-limits 2 of the first spacer 2 are mutually constrained, so that the combination The rotation of the frame 3 is blocked, and the limit: the combination frame 3 can only adjust the pitch angle within a certain angle range. Please refer to the fifth and sixth figures, which is the structure of the creation drag: The components are still the same as the first embodiment. The difference between the second embodiment and the first embodiment is that the first-limit structure 23 of the first spacer 2 has the number of turns and The second limiting structure 4 3 of the second spacer 4 is three in number, each of the first-position structures 2 3 ′, including a first bump 23 丄 ' and − and a first convex 231 a first groove 232 disposed adjacent to the first groove 23 is formed by a first friction surface 22 of the first gasket 2 protruding toward the second gasket 4, the first groove 232 is formed by recessing the first friction surface 22 of the first spacer 2. The first first limiting structure 43 includes a second recess 433, and a second bump 432 disposed adjacent to the second recess 431, wherein the second recess 43 The second friction surface 4' 2 is recessed from the second friction surface 4' 2 of the second spacer 4 to form the second protrusion 4 3 2 from the first friction surface 4 2 of the second spacer 4 to the first spacer 2 The direction is convexly formed. Referring to the seventh and eighth figures, the three first recesses 23 2 are corresponding to the three second bumps 423, and the three second recesses 431 are correspondingly received. Three first bumps 23丄,. The inner walls of the two ends of the first recesses 2 3 2 ′ can respectively block the second bumps 4 3 2 , and the inner walls of the second recesses 431 can block the first bumps 2 3 1 , respectively. Thereby, a six-position limit mechanism is formed, and a stronger force is used to limit the rotation of the second spacer 4. 8 M357490 ^ In addition, in the present embodiment, since the first spacer 2 and the second spacer 4 have exactly the same structure, the spacer 2 (or the second pad) can be manufactured by simply opening a mold. The sheet 4), and when assembled, the two are staggered from each other - angularly adjacently disposed such that each of the first bumps 2 3 γ - bumps 43 2' are respectively received in the respective second recesses 4 3 1 In the first groove 232, the manufacturing cost of the mold can be saved without causing the problem of the mixing.
另外，請再參閱第一圖所示，該第一墊片2可進一步 於未設有該㈣—限位結構2 3處設置二定位柱2 4，^ 在^固定片1 Q #近該第—墊片2 —側的表面對應地設有 一定位孔1 3，該二定位柱2 4係插設於該二定位孔工3 中’以使該第-墊片2能夠更穩固地結合於該固定架工。 然’該定位柱24、定位孔1 3亦可分別設置在如 f五圖所示（即本創作第二實施例）的第-塾片2未設有 苐一限位結構2 3處、固定片1 〇靠近該第-塾片2-側 =面（圖未示），以加強該第一墊片2與該固定架工的 、、、口 Β十生〇 是以，透過本創作樞紐結構，具有如下述之特點及功 1、本創作樞紐結構係分別在第一墊片與第二墊片上 直接形成乡數個第―限位、輯鮮二限位結構，因此益需 另外在_上組以位片，使得組裝構件數量減少，^ 較佳的組裝性，同時降低製造成本。 /、 2、本創作樞紐結構係藉由第一限位 結構相互對應限位，而關絲在結合架上之顯 9 M357490 仰角度，由於第-限位結構與第 总 個，形成多個位置的限He位、4係設置有多數 器的轉動，同時可有效;少Ξ:::=的力量播止顯示 惟以上所述僅為本創作之 :=專_，故舉凡運用了本：= 内内=效結構變化’均同理皆包含於本創作二 【圖式簡單說明】In addition, please refer to the first figure, the first spacer 2 can further be provided with two positioning posts 2 4 at the position where the (four)-limit structure 2 3 is not provided, and the fixing piece 1 Q #近 the first The surface of the spacer 2 is correspondingly provided with a positioning hole 13, and the two positioning posts 24 are inserted into the two positioning holes 3 to enable the first spacer 2 to be more firmly coupled thereto. Fixed work. However, the positioning post 24 and the positioning hole 13 may also be respectively disposed at the first-ply film 2 as shown in FIG. 5 (ie, the second embodiment of the present invention), and the fixing structure 23 is not provided, and is fixed. The sheet 1 is adjacent to the first-side sheet 2 side=face (not shown) to reinforce the first spacer 2 and the fixing frame, and the Β Β 〇 , , , , , , , , , with the following characteristics and work 1, the creative hub structure directly on the first gasket and the second gasket respectively form a number of first - limit, fresh two limit structure, so the benefits are additionally in the _ The upper group is in the form of a bit, which reduces the number of assembled components, better assembly, and reduces manufacturing costs. /, 2, the creative hinge structure by the first limit structure corresponding to each other limit, and the closing wire on the combined frame of the display 9 M357490 elevation angle, due to the first - limit structure and the total number, forming multiple positions The limit of He position and 4 series are set to rotate with most of the devices, and can be effective at the same time; the power of less than:::= is broadcasted, but the above description is only for this creation: =Special _, so the use of this: Internally = effect structure change 'all the same reason are included in this creation 2 [simple description of the schema]
^一圖係本創作樞紐結構之第—實施例的立體分解圖 圖係賴作樞紐結構之第_實施例的立體組合圖 第二圖係本創作樞紐結構之第—實施例的前視圖。 第四圖係第三圖的4 — 4剖視圖。 圖係本創作樞紐結構之第二實施例的立體分解圖。 圖係本創作樞紐結構之第二實施例的前視圖。 第七圖係第六圖的7 — 7剖視圖。 第八圖係第六圖的8 — 8剖視圖。 【主要元件符號說明】 1固定架 10固定片 11 樞孔 1 2扣槽 1 3 定位孔 2第一墊片 2 1扣片 10 M357490 2 2 第一摩擦面 23 第一限位結構 2 3’第一限位結構 2 3 1 ’第一凸塊 2 3 2’ 第一 2 4 定位柱 3 結合架 3 0 結合片 3 1 結合孔 3 2 扣槽 4 第二墊片 4 1 扣片 4 2 第二摩擦面 4 3 第二限位結構 4 3’ 第二限位結構 4 3 1’第二凹槽 4 3 2 ’第二凸塊 5 樞軸 5 1 擋板 6 墊片組 7 螺帽Figure 1 is a perspective exploded view of the first embodiment of the present invention. The second embodiment is a front view of the first embodiment of the present invention. The fourth figure is a sectional view of 4 to 4 of the third figure. The figure is an exploded perspective view of a second embodiment of the present creative pivot structure. The drawing is a front view of a second embodiment of the present creative pivot structure. Figure 7 is a cross-sectional view taken along line 7-7 of the sixth figure. The eighth figure is a sectional view of Fig. 8-8 of the sixth figure. [Main component symbol description] 1 Fixing frame 10 fixing piece 11 Pivot hole 1 2 Buckle 1 3 Positioning hole 2 First spacer 2 1 Clasp 10 M357490 2 2 First friction surface 23 First limit structure 2 3' A limit structure 2 3 1 'first bump 2 3 2' first 2 4 positioning post 3 joint 3 0 joint piece 3 1 joint hole 3 2 buckle groove 4 second gasket 4 1 clasp 4 2 second Friction surface 4 3 Second limit structure 4 3' Second limit structure 4 3 1' Second groove 4 3 2 'Second bump 5 Pivot 5 1 Baffle 6 Shim set 7 Nut