200533830 九、發明說明： 【發明所屬之技術領域】 本，月係關方、種具有重疊密封接合部的塑膠製的活 塞桿密封環。 【先前技術】 上！類㈣活塞桿密封環係應用於燃燒引擎的活塞桿 上的壓蓋密封。此類麼蓋密封特別為船舶用柴油機所習知 的’且在例如文件 DE_B_21，14，152 或 EP_A_o，i38,443 中 有敘述。活塞桿的塵蓋通常形成介於該曲柄外罩與換氣室 之間的間隔。在其曲柄外罩一侧 、、工— 1早惻，首先一組刮油環配置在 〆基杯的壓蓋之中’數個密封 7衣装跟在其後，座落在該圓 柱側邊之上。該等密封環用 1之巧，古基杯達到氣密的接 觸，必須始終在壓力下依靠該活塞桿。 如S式驗結果顯示，最大的磨 扪总耗不可避免地發生在該活 死點。活塞桿上直徑範圍w咖的磨耗是在此 寸吊舍生的大小。由此導致上下死點區域在每一活夷行程 循環裡被密封環刷過兩次。因 " 祕士 4 U 杜在封接合部的重疊區 或中该岔封環必須進行約3_6mm ϋ， 祁對運動。以此，該密 封接合部的上下舌片彼此滑動超 ^ y, t 仕°系在封接合部同時 ^ 4之上的兩舌片的表面承受摩損，i一 為 同材質製成的兩舌片彼此摩擦的影塑， 又目 A ^ ^ ^ ^ θ 1另一方面經由混 作H劑之油中之磨耗的金屬部份的_ 的油使該密封接合部的兩舌片上 s 木 八π〜 厚擦知耗增加。由#用 i屬活基桿密封環，該接合部區域的 在封％的磨損問題相 6 200533830 對地輕微，且限於例如Η主 例如疋月鋼之軟金屬製的密封環。 明顯的是，發現金屬掣的、丰Α 又力 ,々 H活基桿密封料致活塞 、 口此该欲封整體變得不足，其缺點一 方面導致曲軸油的消耗辦Λ " A ^ ^ Α θ σ。因此近年來，愈來愈多的活 ai ㈣刮油環以及密封環。而藉由這此 裝置，該活塞桿的磨杯p叩时， 二 杆的愿耗已明顯地降低，且因此油耗亦 到隶低，由於密封的退化立 思卜地比預期快，該密封環必 逐漸地增加替換已經祜蛾 、 二破也明。僅這些塑膠密封環的替換已 被痛認在該密封接合部區 、 、 ^ ^ Τ的植封^會導致意外的洩 漏。即將在此被討論的密封 ,^ t衣弟一 -人使用於如WO 91/14890 所揭露的壓蓋。 【發明内容】 因此’本發明的目的是以重疊的密封接合部的方式改 進塑膠活塞桿密封環，使得其壽命增加，並且甚至即使有 -IM刀的磨#仍保有密封性。具有專利巾請範圍帛^項特徵 的一種塑膠活塞桿密封環達到此目標。更進-步地具有許 多優點的實施例將由附屬項專利申請範圍推論出，且意義 以及做法將參考附圖在後續的敘述中解釋。 本發明的主題的較佳實施例顯示於附圖中，並且在後 續敘述中詳細地解釋。 【實施方式】 為了對於本發明的有更多的了解，參考圖1，以在船 舶的柴油發動機的應用解釋該壓蓋密封的結構。此類壓蓋 山封使4曲軸至對該換氣室密封。在圖丨當中，該換氣室 7 200533830 設置在箭頭Z方向上，並且在鼓 ^ 在刖頭尺方向上設置曲軸外罩。 該壓蓋具有壓蓋外罩丨， 神外卓 辟μf 不问的接收凹槽2係結合於苴内 壁上。數個以刮除黏著 …鬥 在該曲柄桿上的油並將之 軸外罩的方式的刮油環 由衣3，被安裝於該曲軸室側下丰 的圓環狀凹槽2中。為昝，入4 至例下牛⑷伤 m ^ ^ *七 口適的油洩流道4係結合於該 匕I的外罩中。该刮油環 女4於壓蓋外罩中的區域稱Λ 刮油區，而該壓蓋的密封γ ]匕4矛冉為 封£域在換氣室的方向緊跟其上。 同樣地’周邊的圓環接收200533830 IX. Description of the invention: [Technical field to which the invention belongs] This month is a plastic piston seal ring with overlapping sealing joints. [Prior art] Up! The ㈣-like piston rod seal ring is a gland seal applied to the piston rod of a combustion engine. This type of cap seal is particularly well known for marine diesel engines' and is described, for example, in documents DE_B_21, 14, 152 or EP_A_o, i38,443. The dust cover of the piston rod usually forms a space between the crank cover and the ventilation chamber. On the side of its crank cover, one morning, the first set of oil scraping rings is arranged in the gland of the base cup. Several seals and 7 clothes are followed, and it is located on the side of the cylinder . These seal rings use the coincidence of 1 and the ancient base cups achieve air-tight contact and must always rely on the piston rod under pressure. As the S-type test results show, the maximum total wear and tear will inevitably occur at this point of death. The wear on the piston rod with a diameter range of w coffee is the size that is born in this inch. As a result, the upper and lower dead center areas are brushed twice by the seal ring during each stroke. Because of the "Secretary 4 U Du" in the overlapping area of the seal joint or the fork seal ring must be carried out about 3_6mm ϋ, Qi pair movement. In this way, the upper and lower tongues of the sealing joint part slide over each other ^ y, t ° The surface of the two tongues above the sealing joint part ^ 4 at the same time undergoes abrasion, i is two tongues made of the same material Shadow plastic that rubs against each other, again A ^ ^ ^ ^ θ 1 On the other hand, the oil on the metal part of the oil mixed with H agent is used to make the two tongues of the sealing joint part s wood π ~ thick Wipe consumption increased. By # 用 i belongs to a living base rod seal ring, the wear of the joint area in the seal% of the wear phase is relatively minor, and is limited to, for example, a soft metal seal ring such as 疋 月 steel. Obviously, it was found that the metal stopper, Feng A and force, 力 H live base rod seal material caused the piston and the mouth to be sealed as a whole became insufficient, on the one hand, the disadvantages caused the consumption of crankshaft oil Λ " A ^ ^ Α θ σ. Therefore, in recent years, more and more active ai wiper rings and seal rings have been used. With this device, when the grinding cup p 叩 of the piston rod, the willingness of the two rods has been significantly reduced, and therefore the fuel consumption has also been lowered. Because the seal is degraded faster than expected, the seal ring Will gradually increase the replacement of the already moth, two broken also known. Only the replacement of these plastic seal rings has been recognized as the plant seal in the seal joint area, ^ ^ T will cause accidental leakage. The seal, which will be discussed here, is used for glands as disclosed in WO 91/14890. [Summary of the Invention] Therefore, the object of the present invention is to improve a plastic piston rod seal ring by overlapping sealing joints, so that its life is increased, and even if there is -IM 刀 磨 磨 #, it still maintains sealability. A plastic piston rod seal ring with the features of the patent towel range 项 ^ achieves this goal. Embodiments which further have many advantages will be deduced from the scope of the dependent patent application, and the meaning and practice will be explained in the subsequent description with reference to the drawings. Preferred embodiments of the subject matter of the invention are shown in the drawings and are explained in detail in the ensuing description. [Embodiment] In order to have a better understanding of the present invention, referring to FIG. 1, the structure of the gland seal will be explained by applying it to a diesel engine of a ship. This type of gland seal seals the 4 crankshaft to the venting chamber. In the figure, the ventilation chamber 7 200533830 is arranged in the direction of the arrow Z, and a crankshaft cover is arranged on the drum ^ in the direction of the toe. The gland has a gland cover, and the receiving groove 2 which is not affected by Shenwai Zhuopif is coupled to the inner wall of the grate. A plurality of oil scraping rings 3, which are used to scrape off the oil on the crank rod and cover the shaft, are installed in the annular groove 2 on the lower side of the crank chamber. For example, the sirloin injury m ^ ^ * 7 to seven cases of suitable oil drain runner 4 is integrated into the outer cover of the dagger I. The area of the oil scraper ring 4 in the cover of the gland is called Λ oil scraping area, and the seal of the gland is tightly closed in the direction of the ventilation chamber. Similarly, the peripheral ring receives
U子曰2朝内地形成於密封區内， 且該密封環5安放其中。在此圖火士从士 内 圖田中的表現，該密封環5 係以顯示如傳統密封環，同時具有刮油環3。立係”人 所開發=由專利WP/G44彻得知的特㈣油環。在:顯 ^的h密封的一種實施例當中，對該刮油環3或密封環 5 ；5也加|迫力的螺旋彈箬 、 矛、妖评Η未被畫出。然而這些必然是存在 的。此省略只為該使該圖不致負擔太多。 為了再次时論傳統活塞桿密封環的問題，關於這點， 參見y及圖9,圖中係顯示代表根據市場上已經出現的 在申清人之部件上之最新的活塞桿密封環。該密封環$在 此！體成形製造且包含一重疊的、氣密的接合部“此 重&、乳密的接合部如圖9的截面 重疊的區域中，第一圓環端7與另一第二圓環：::合在 同日:忒圓環端7密封地承接另-圓環端8上的滑動表面9。 該第二重疊的滑動表面9為一密封的表面％，各種力幾乎 不施加其上，且可確定在其上其實沒有磨擦損耗發生。在 沒些表面上的摩擦損耗以塗黑的方式示意且以字母w桿 8 200533830 不。由於在此處兩個塑膠零件相對彼此滑動，且另 ^ 周邊螺旋狀彈簧在圓弧狀開槽R内以封閉的方n 彈菁產生朝向活塞桿的中心轴的徑向壓力，了： 擦損耗W。 幻厚 τ 1从有出獨創之組裝 ^ I m ΐψ ψ ^ 密封環。實際的塑膝密封環標…〇。該塑 ' :體干 成形且包含-弧狀重疊區域12，其尺寸依與活塞桿直: 相合程度而變化，視磨損所造成的變化而定。位The U-shaped part 2 is formed inwardly in the sealing area, and the sealing ring 5 is placed therein. In this picture, the firefighter is in the field, and the seal ring 5 is shown as a traditional seal ring, with an oil wiper ring 3 at the same time. Developed by the "people" = special oil ring known from the patent WP / G44. In one embodiment of the h-seal shown, the oil wiper ring 3 or seal ring 5 is added; The spiral impeachment, spear, and demon comment are not drawn. However, these must exist. This omission is only to make the figure not too burdensome. To discuss the problem of the traditional piston rod seal ring again, about this Refer to y and Fig. 9, which shows the latest piston rod seal ring that has appeared on the market of Shen Qingren's parts according to the market. The seal ring is here! The body is formed and contains an overlapping, gas In the area where the cross section of this heavy & dense joint overlaps as shown in FIG. Sealingly receiving the sliding surface 9 on the other-ring end 8. The second overlapping sliding surface 9 is a sealed surface%, and various forces are hardly applied thereto, and it can be confirmed that no friction loss actually occurs thereon. Friction losses on some surfaces are shown in black and indicated by the letter w 8 200533830 No. Because here the two plastic parts slide relative to each other, and the other ^ peripheral helical spring in the arc-shaped slot R with a closed square n elastic spring generates a radial pressure toward the central axis of the piston rod, the friction loss: W. Magic thickness τ 1 from original assembly ^ I m ΐψ ψ ^ seal ring. The actual plastic knee seal ring ... 〇. The plastic ': body shape is formed and includes-an arc-shaped overlapping area 12, the size of which varies depending on the degree of straightness with the piston rod, depending on the change caused by wear. Bit
表面的塑膠密封環包含一個或一 、'^ 、 ‘ 调以上的周邊開槽12，直 供作導引安放於其中的周邊螺旋 ^ 较η π #丄 平/、 14之用。該螺旋彈 貫可錯由一體成形的環狀孔眼以及一體成形 所形成的鎖來結合在一起。依所需要的壓力大小， 多至三條此種周邊螺旋彈簧。在接合冑6的區域内，一: 橋1元件15置於徑向。該橋接元件15相似地 包5開槽16’在組裝的狀態下，其與位於該塑膠密封環10 上的開槽 '平高：該塑膠密封環10包含一朝内的周邊凹 7 A k”重Μ域寬。然而該金屬製的弧形橋接元件 在任何‘丨月況下其縱向長度小於朝内的周邊凹Π 17，者 ㈣膠密封圓環呈現最小直徑的時候。該朝内的周邊」 ::有-基底，其為該圓弧形橋接元件15提供一滑動表 。祕形橋接器15以及該朝内的周邊凹口 17必項互 相配合。然而大體上該弧形橋接元件15料徑可此微地 :該：内的周邊凹口 Π的滑動表面18的半徑大。這兩種 在短時間之後彼此配合。關於此點，隨後的附圖將再 9 200533830 次地討論。 圖4及圖5顯示該塑膠密封環1()本身。該塑勝密封環 1〇具有-内部密封表φ U，其在裝置的狀況下承載在該 =塞桿上。該活塞桿U上的㈣表面可設計成—完全覆 盍：圓環狀的圓柱表面或分成兩個以上的平行、圓環狀圓 柱密封唇口 19，其一起形成該密封表面1卜該密封唇口 19 僅在圖5的視圖比較清楚，其中兩密封環舌片⑼及^在 軸方，上不重疊。兩件舌片20及21的重疊區域12 一起 :成&密表面22。該周邊的凹口 17可以看出延伸超過兩 二舌…的總長，並且進—步地沿著周邊方向延伸。 ^圖5中該氣密表面22顯示不清楚，但是在此以表面η 丁點的形式來標示。該打點的區域22包含兩段，其以 =或較疏的打點來表示。如在此顯示的，該密集打點的 :糸舌片20及21在未荷载的情況下重疊，而在裝載的 :;卜：打點較疏的區域承受來自彈簧的壓力，其中該彈簧 、卜也以密封的方式彼此重置。 長1鬲的’月動表面23係在該周邊凹口 I?的圓中 、。此提高的滑動表面23 、、;l基闺、真七& 兩件密封μ 2n °者周邊方向延伸並且超越該 18,，M — 及21。側面的非提高滑動表面區域18,及 開槽持在該提高的滑動表面23側。前面已經提過的 上，、看出在该塑膠密封環1〇的外部周邊表面之 及整:::開槽’除該周邊凹口 17的區域之外，延伸遍 該橋接元件如圖6以及圖7所示。該橋接元件15 10 200533830 係由金屬製成。此可由傳統的機器鋼製成。該橋接元件μ 具有側邊限制表面25，其末端為周邊斜切面26。如為該 橋接元件已經做過的敘述’開槽16係向内成形於該： 部表面之上。周邊肋27保留在兩相鄰開槽16之間。該橋 接元件1 5的兩個端面2 8逕指向徑向。 該橋接元件15的材料硬度明顯地大於該塑勝密封们〇 .$㈣硬度。、此設計的結果是，❹❹損僅發生在塑勝 密封壞10的滑動表面18或提高的滑動表面23。該提言的 #滑動表面23使該塑膠密封環1〇在此區域，至少：起：狀 態下’更加堅硬。在該塑膠密封環1〇的工作壽命期严:， 該提南滑動表面23將-點一點地磨損。若提高的部份办 全地磨耗殆盡，則在原理上此區域將與非提高的側端滑$ 表面區域18,及18，，齊平。然而即使如此該塑膠密封環10 不需更換。尤其該密封環舌片2〇現在已經變薄並且因此 依據磨耗程度大小變得更加有彈性。然而同時，尤其是用 未硬化的活塞桿’可能會發生活塞桿—定程度之磨損，此 ♦意味著該塑膠密封環1〇半徑已某種程度地減少。秋而由 t在橋ί元件15之上無法實際確認磨耗，現在該橋接元 ^ 15貫際上亦僅放置於該中間區域内，因為該弧形橋接 4 b的内表面直徑大於塑膠密封環1G的直徑或半徑。 1最後結果為該塑膠密封環10壽命明顯地增加，並且同 :拜使用5亥塑膠密封環之賜’降低該活塞桿上的磨耗。當 2者亦冋時使得裝設有根據本發明的塑膠密封環的轴襯 、-舶柴油機的油耗明顯地降低。 11 200533830 在該到油環3以及該塑耀 一環為佳，竽浐门+ 7衣5之間以尹介地裝置 4 %同時發揮到油 1中此環被泠虑 '查择M 々及法封環的作用。在圖 {攸、，日成4績的型態。 它的一側在軸方θ μ a八 ^衣致上不同的地方在於 介的空間在其間保持淨空，受、、亏^固麵側面的凸輪，中 並進入中立办„又/了乐的油以通過此組件流出 r立工間為佳。以此方式 軸外罩。不认、士 +四 f貝防又5染的油進入曲 些環的這些雙 密封環，根攄太& 在此可以被敘述成 很據本發明，橋接元件 的設計。 σ八有該空氣接合部6 【圖式間單說明】 圖1係一以立體、邱八立丨工 簡化型式塵蓋密封；。 圖示之不屬於任何類型的 發明：：：、"'以在組裝之狀態下的軸向視圖顯示之根據本 知明的活塞桿密封環，以及 「<根據本 圖3係以該重疊的接合 桿密封環； ^工向視圖顯不同樣的活塞 囷4係再以轴向满 一 桿密封環，以A w不本身為塑膠製之同樣的活塞 圖5係再以該重最 密封環； 且之接5 °卩的徑向視圖顯示此活塞桿 圖6係顯示弧形的 y 接兀件的轴向視圖，以及 圖7係一徑向視圖； 圖"、以軸向視圖顯示 桿密封環，以及 们^又< 1寻統的活塞 12 200533830 圖9顯示沿著圖8中該重疊接合部區域的A-A剖線的 剖面視圖。 【主要元件符號說明】The plastic sealing ring on the surface includes one or one of the peripheral grooves 12 above, which can be directly used as a guide for the peripheral spiral placed in it. ^ Η π # 丄 平 / 14. The helical spring can be combined together by integrally formed annular eyelets and integrally formed locks. Depending on the required pressure, up to three such peripheral coil springs. In the area of the joint 胄 6, one: The bridge 1 element 15 is placed radially. The bridging element 15 is similarly packaged with 5 slots 16 ′ in the assembled state, which is as high as the slots ′ located on the plastic sealing ring 10: the plastic sealing ring 10 includes an inwardly facing recess 7 A k ” The weight M is wide. However, the length of the metal arc-shaped bridge element is less than the inwardly facing perimeter recess 17 in any month, when the rubber seal ring presents the smallest diameter. The inwardly facing perimeter '' :: Yes-base, which provides a sliding table for the arc-shaped bridge element 15. The hidden bridge 15 and the inwardly facing peripheral notch 17 must cooperate with each other. In general, however, the material diameter of the arc-shaped bridging element 15 can be slightly smaller: the radius of the sliding surface 18 of the inner peripheral notch Π is large. These two cooperate with each other after a short time. In this regard, subsequent drawings will be discussed again. 4 and 5 show the plastic sealing ring 1 () itself. The plastic seal ring 10 has an internal seal table φ U, which is carried on the plug rod under the condition of the device. The cymbal surface on the piston rod U can be designed to be completely covered: a circular cylindrical surface or two or more parallel, circular cylindrical sealing lips 19, which together form the sealing surface Port 19 is relatively clear only in the view of FIG. 5, in which the two seal ring tongues ⑼ and ^ are not axially overlapped. The overlapping area 12 of the two tongues 20 and 21 together: a & dense surface 22. The peripheral notch 17 can be seen to extend beyond the total length of the two tongues ... and extends further in the peripheral direction. ^ The airtight surface 22 is not clearly shown in FIG. 5, but it is indicated here in the form of a surface η dot. The dotted area 22 contains two segments, which are represented by = or a thinner dotted. As shown here, the densely-dotted: Tongue pieces 20 and 21 overlap without load, and when loaded with :; Bu: the area where the dots are sparsely bear the pressure from the spring, where the spring, Bu also Reset each other in a sealed manner. The 1 'long moon surface 23 is tied in the circle of the peripheral notch I ?. This raised sliding surface 23, l1, 闺, 真 七 & two sealed μ 2n ° extend in the peripheral direction and beyond the 18 ,, M — and 21. The side non-raised sliding surface area 18, and the groove is held on the side of the raised sliding surface 23. As mentioned above, it can be seen that the outer peripheral surface of the plastic seal ring 10 and the entire surface are ::: slotted, except for the area of the peripheral notch 17, extending across the bridge element as shown in Figure 6 and Figure 7 shows. The bridge element 15 10 200533830 is made of metal. This can be made from conventional machine steel. The bridging element μ has a side-limiting surface 25 and a distal end thereof is a peripheral chamfered surface 26. As already described for the bridge element, the 'slot 16 is formed inwardly on the surface of the part. The peripheral rib 27 remains between two adjacent slots 16. The two end faces 28 of the bridge element 15 point radially. The material hardness of the bridge element 15 is significantly greater than the hardness of the plastic seals. As a result of this design, the damage occurred only on the sliding surface 18 or the elevated sliding surface 23 of the plastic seal 10. The mentioned #sliding surface 23 makes the plastic seal ring 10 more rigid in this region, at least: from: state. During the working life of the plastic seal ring 10 is severe, the Tinan sliding surface 23 will be worn a little bit by little. If the raised part is completely worn out, in principle, this area will be flush with the non-raised side end surface areas 18, and 18 ,. Even so, the plastic seal ring 10 does not need to be replaced. In particular, the sealing ring tongue 20 is now thinner and therefore more elastic depending on the degree of wear. However, at the same time, especially when using an unhardened piston rod, piston rod-a certain degree of wear may occur, which means that the radius of the plastic sealing ring 10 has been reduced to some extent. In the autumn, the wear cannot be actually confirmed by t on the bridge element 15. Now the bridge element ^ 15 is also placed only in the middle area, because the inner surface diameter of the arc bridge 4 b is larger than the plastic seal ring 1G Diameter or radius. 1 The final result is that the life of the plastic sealing ring 10 is significantly increased, and the same is true: using the gift of 5 Hai plastic sealing ring ’reduces the wear on the piston rod. When the two are also sloppy, the fuel consumption of the bushing equipped with the plastic sealing ring according to the present invention and the diesel engine is significantly reduced. 11 200533830 It ’s better to get to the oil ring 3 and the plastic ring. The Yemen + 7 clothing 5 is played with 4% Yin Yindi device at the same time into the oil 1. This ring is considered by 'Choose M' The role of sealing ring. In the figure {you ,, Nissen 4 performance type. On one side of the axis θ μ a, the difference between the clothes is that the space of the medium keeps the clearance between it, the receiving, the losing cam on the side of the solid surface, and enters the neutral office. It is better to flow out of the vertical workshop through this assembly. In this way, the shaft cover. I do n’t recognize the two seal rings of the ring and the 5 dyed oil into the curved rings. It is described as the design of the bridging element according to the present invention. Σ 八 有 The air joint 6 [Illustration between the drawings] Figure 1 is a three-dimensional, Qiu Baoli simplified construction dust cover seal; Inventions that do not belong to any type: ::, " Piston rod seal rings according to the present invention shown in axial view in the assembled state, and " sealed with this overlapping joint rod according to Figure 3 ； The pistons 囷 4 shown in different working directions are filled with a rod seal ring in the axial direction, and the same piston made of A w is not made of plastic. Figure 5 is the seal ring with the weight; and 5 ° 卩 radial view shows this piston rod. Figure 6 shows the axial direction of the arc-shaped y-connector. FIG. 7 is a radial view; FIG. “A rod seal ring is shown in an axial view, and the same piston 12 200533830 FIG. 9 shows the area along the overlapping joint in FIG. 8 Sectional view of the AA section line. [Description of main component symbols]
K 曲軸外罩 R 開槽 W 換氣室 Z 換氣室 1 壓蓋外罩 2 接收凹槽 3 刮油環 4 油 流道 5 密封環 6 重疊接合部 7 第一圓環端 8 第二圓環端 9 滑動表面 9a 密封表面 10 塑膠密封環 11 密封表面 12 重疊區域 13 周邊開槽 14 螺旋彈簧 15 橋接元件 16 橋接元件中的開槽 13 200533830 17 凹口 ， 18 滑動表 185 非提高 18，， 非提高 19 密封唇 20 密封環 21 密封環 22 氣密表 23 提南的 25 側邊限 26 斜切面 27 周邊肋 28 端面K Crankshaft cover R Slotted W Breathing chamber Z Breathing chamber 1 Gland cover 2 Receiving groove 3 Oil wiper ring 4 Oil runner 5 Sealing ring 6 Overlap joint 7 First ring end 8 Second ring end 9 Sliding surface 9a Sealing surface 10 Plastic sealing ring 11 Sealing surface 12 Overlapping area 13 Peripheral slot 14 Coil spring 15 Bridge element 16 Slot in bridge element 13 200533830 17 Notch, 18 Sliding table 185 Non-raising 18, Non-raising 19 Sealing lip 20 Sealing ring 21 Sealing ring 22 Airtight gauge 23 Tinan 25 Side limit 26 Beveled surface 27 Peripheral rib 28 End face
周邊 面 的側面滑動表面區域 的側面滑動表面區域Side sliding surface area of peripheral surface Side sliding surface area
D 舌片 舌片 面 滑動表面 制表面D tongue tongue surface sliding surface surface
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