1312038 、 九、發明說明： 【發明所屬之技術領域】 本發明係為-種線性滑執之配件，尤指—種線性滑軌 之壓制裝置，係具有讓使用者快速拆、裝之功能。 【先前技#f】 線性滑軌安裝於工具機或生產設備後，會有相當多異 #物與油潰入侵線性滑執内部，造成線性滑執運行的順暢度 不佳，嚴重則造成線性滑軌的損壞；另，當線性滑軌應用 於高負荷狀態與高速運行狀iT，如滑執兩端無裝設擔 塊，在重力加速度下滑塊必然會脫離滑執，進而造成嚴重 工安問題或不少損害產生，故為了何防止以上問題產生， 目前業界研發出幾種對策來解決此問題，說明如后： 第-種習知技術如曰本專利特許第·115號專利 案$案係於滑軌表面設有一板材（與本發明之覆蓋帶為 同等物），以覆蓋滑軌上方的螺检孔，另於滑執的兩端面 叹有固疋裝置’該固定I置係由一具有容置槽的摺接部與 一固定塊組成’該m定塊係與該板材連接後，制定塊再 安裝至該摺接部之容置槽内，而後，藉由該固定塊與摺接 部上所設之通孔，以螺絲穿射該通孔而鎖固在滑軌端面。 惟該專利案有以下問題點： 1312038 ι·=定裝置不狀位功能（固定裝置與滑執端面皆為平面 叹计）’因此滑軌兩端的端面須鑽多個螺絲孔，以固定 該固定裝置，且須加工摺接部之曲面及容置槽，·如此作 法大幅增加加工成本； 2.使用者需先將板材末端鎖固在固定塊上，而後將板材沿 著摺接部之曲面設置，再將固找固定於容置槽内，最 後藉由多個螺絲將固定塊與摺接部鎖固在滑執端面，如 此結構設計造成組裝費時的問題產生，相對製造成本增 加； 3. 該專利案雖具有防塵功能但不具擋塊功能，故無法避免 滑塊掉出滑軌； 4. 該板材需配合摺接部之曲面設置，故需較長的板材， 因此浪費防塵蓋條之材料成本。 目前業界為了改善上述習知無擋塊之功能，又積極研 究開發出另一種習知技術，如美國專利第US6764〇67號專 利案，該覆蓋帶固定裝置，係藉由固定件將其鎖固於滑軌 兩端面，於上設有一固定部，該固定部係設有固定孔；覆 蓋帶係以S形環繞於若干壓板之間，由固定件與該固定孔 配合，將該壓板固定於該固定部上，進而使覆蓋帶固定。 但，此習知技術經實際使用後，仍因該防塵覆蓋帶 固定裝置零組件過多，且需以螺絲鎖固不方便安裝；再 1312038 者，因覆蓋帶須以s形環繞於該壓板間，進而使該覆蓋 帶所須長度增加，如此造成材料之浪費並提高成本，且 組裝麻煩問題產生。 【發明内容】 基於上述習知覆蓋帶之固定裝置之問題點，本發明人 經過研究改良後，終有確能達成以下發明之目的之發明誕 生。 即，本發明首要目的在於，簡化固定裝置之結構，以 簡單的結構達到具擋塊作用及壓制覆蓋帶之功效，並縮短 裝配的時間，進而降低製造成本。 本發明次要目的在於，使覆蓋帶只須披覆至滑執端面 平齊即可，以防止覆蓋帶之材料浪費。 為達上述之目的，本發明係為一種線性滑執覆蓋帶之 壓制裝置，該壓制裝置係包含：一本體、一環體、一壓製 塊、一彈性件所組成；該本體概呈「门」字形體，於「门」 字形體兩端係設有一凸部，該凸部係設有一倒勾面，於 「门」字形體中上部係設有一容置孔及一穿孔，該容置孔 係與該穿孔相連通，該容置孔之頂端係設有一第一限位 面；該壓制塊概呈倒「τ」字形體，係由一柱體垂直連接 一壓制部所組成，該柱體上係設有一通孔，該壓制部與柱 1312038 1312038 另一側係設有一壓制 體連接之一側係設有一第二限位面 面； ， 藉此’將該彈性件套設於該壓制塊之柱體上，再將該 柱體穿設該本體之穿孔後，使該彈性件被限制於第一限位 面與第二限位面之間，再者，將該環體穿設於該壓制塊之 柱體所設之通孔後，即可限制該壓制塊上下作動之行程， • 最後’使用者只需將手指伸進該環體内，將環體往上拉 起，此時，5亥彈性件為壓縮狀態，再將該壓制裝置套設於 設有覆蓋帶之滑軌（無設覆蓋帶亦可實施）端部，且使該 本體之凸部的倒勾面與該滑軌之所設滾動面相互抵頂，再 放開該環體’藉由該彈性件之彈力使該壓制部之壓制面壓 制於该覆蓋帶（或滑軌上表面）上，進而使該壓制裝置之 本體向上位移且變形’而變形後該倒勾面與滑執之滾動面 籲更為緊密固定，讓該麈制裝置呈三點（兩凸部之倒勾面及 壓制塊之壓制面）挾持固定狀態，如此便可防止該覆蓋帶 之兩端有麵曲的情形產生’故，本發明之壓制裝置不需藉 由任何手工具即可安裝。 . 且，本發明係考慮到該壓制裝置裝設於該滑軌後，會 增加滑執兩端之高度，為了避免此問題產生，故，本發明 之環體與忒壓制塊之通孔配合為餘隙配合，該環體可以一 1312038 定方向旋轉至少18〇度，簡言之，於使用時，該環體為直 立狀態，於使用後，則該環體為傾倒狀態，故使用後該環 體之狀態是不會再額外增加整體高度的。 另外，本發明之覆蓋帶披覆於滑轨後，不須延伸出兩 端面，近而降低覆蓋帶之使用量，避免材料浪費。 • A求清楚說明本發明之實施特點，以下說明本發明較 習用進步之處及實用方式： 1·本發明之壓制裝置零組件之製造成本與組裝於滑執之 程序少。 2. 本發明之壓制裝置安裝與卸下容易，並無須手工具。 3. 本發明之壓制裝置無須於滑軌上進行任何加工，便可固 定壓制裝置與防塵覆蓋帶。 籲4·本發明之_裝置係具有防止滑塊歸執上脫落之功 能。 為了更進-部瞭解本發明之特徵及技㈣容，請參閱 以下有關本發明之實施方式說明及圖式，然而此實施方式 及圖式僅供說明及參相，而非用以對本發明做任何限制 者。 1312038 【實施方式】 本發明之實施例請參閱第一圖至第六圖所示，本發明 係為一種線性滑執覆蓋帶之壓制裝置，其中該線性滑軌係 包含： 一滑軌2，係於上表面2 2係設有若干螺栓孔2 4及 一凹槽2 3，且於長軸兩側設有若干滚動面2工； 滑塊1，概呈「门」字形係套設於該滑軌2上，並 • 於該滑執上作線性運動，且於内側設有相對該滑軌2之滾 動面2 1之滚動面（未顯示）； 若干滾動元件（未顯示），係容置於滑執2之滾動面 2 1與滑塊1之滚動面（未顯示）間； 兩端蓋6 ’係各裝設於該滑塊1之兩端面，其内部設 有供該滾動元件（未顯示）無限循環之迴流道（未顯示）； 一覆蓋帶4，係披覆於該凹槽2 3上（或直接披覆於 • 滑執2之上表面2 2 )，用以封住該滑執2之螺栓孔2 4，可避免粉塵汙垢因堆積在該螺栓孔2 4内，進而防止 異物間接由滑軌2進入滑塊1内部。 »亥壓制裝置5，係裝設於該滑執2之端部，該壓制裝 . 置5係包含：一本體5 1、一環體52、一壓製塊53、 一彈性件5 4所組成；該本體5 1概呈「门」字形體，於 「门」字形體兩端係設有一凸部5 1 1，該凸部5 伟 1312038 ’設有一倒勾面5 1 1 1，於「门」字形體中上部係設有一 容置孔5 1 2及一穿孔5 1 3，該容置孔5 1 2係與該穿 孔5 1 3相連通，該容置孔5 1 2之頂端係設有一第一限 位面5 1 2 1 ;該壓制塊5 3概呈倒「丁」字形體，係由 一柱體5 3 1垂直連接一壓制部5 3 2所組成，該柱體5 3 1上係設有一通孔5 3 1 1，該壓制部5 3 2與柱體5 3 1連接之一侧係設有一第二限位面5 3 2 2，另一側係 • 設有一壓制面5 3 2 1 ;將該彈性件5 4套設於該壓制塊 5 3之柱體5 3 1上，再將該柱體5 3 1穿設該本體5 1 之穿孔5 1 3後，使該彈性件5 4被限制於第一限位面5 1 2 1與第二限位面5 3 2 2之間，再者，將該環體5 2 穿设於該柱體5 3 1所設之通孔5 3 1 1後，即可限制該 壓制塊5 3上下作動之行程。 • 以上所述為各元件細部說明及其相互搭配關係，以 下說明本實施例之實施方式： 首先，請參閱第三、四圖所示，係為本發明第一實 施例，係將s亥覆蓋帶4披覆於該滑執2之凹槽2 3上， - 再將該壓制裝置5安裝至滑執2端部，使用者只需將手 指伸進該環體5 2内，將環體5 2往上拉起，此時，該彈 性件5 4為壓縮狀態，再將該壓制裝置5套設至滑執2之 11 〔：S ) 1312038 **' 端部，且使該本體5 1之凸部5 1 1的倒勾面5 1 1 1與 該滑執2之滚動面2 1相互抵頂’再放開該環體5 2，藉 由該彈性件5 4之彈力使該壓制部5 3 2之壓制面5 3 2 1壓制於該覆蓋帶上，進而使該壓制裝置5向上位移且 變形，而變形後該倒勾面5 3 2 1與滑軌2之滾動面2 1 更為緊密固定’讓該壓制裝置5呈三點（兩凸部511之 倒勾面5 1 1 1及壓制塊5 3之壓制面5 3 2 1 )挾持固 • 定狀態，如此便可防止該覆蓋帶4之兩端有翹曲的情形產 生’並且具有防止滑塊1掉出滑執2之功能。 再者’請參閱第五圖所示，係為本發明第二實施 例’該滑執2亦可不設置凹槽2 3，直接將該覆蓋帶 4披覆於滑軌2之上表面2 2，如此也可以達到本發 明之功效，其安裝步驟係與第一實施例相同，再此不 鲁 在多作贅述。 最後，請參閱第五圖所示，係為本發明第^實施 例，該滑軌2如無披覆該覆蓋帶4，該壓制裝置5亦 可安裝於該滑軌2上，以防止該滑塊1掉出該滑勒^ 2 之功能，其安裝步驟係與第一實施例相同，再此不在 多作贅述。1312038, IX, invention description: [Technical field of the invention] The invention is a kind of linear sliding accessory, especially a linear sliding rail pressing device, which has the function of allowing the user to quickly disassemble and install. [Previous technique #f] After the linear slide rail is installed on the machine tool or the production equipment, there will be quite a lot of different objects and oil collapse in the linear slippery interior, resulting in poor smoothness of the linear slippery operation and serious linear slippage. The damage of the rail; in addition, when the linear slide is applied to the high load state and the high speed running iT, if there is no load block at both ends of the sliding, the slider will inevitably leave the slippery force under the gravity acceleration, thereby causing serious work safety problems or A lot of damages have occurred, so in order to prevent the above problems, the industry has developed several countermeasures to solve this problem, as explained in the following: The first kind of conventional technology, such as the Patent Grant No. 115 patent case, is The surface of the slide rail is provided with a plate (the same as the cover tape of the present invention) to cover the screw inspection hole above the slide rail, and the bottom surface of the sliding handle is slanted with a fixing device. The grooved portion is combined with a fixed block. After the m block is connected to the plate, the block is fixed to the receiving groove of the folding portion, and then the fixing block and the folding portion are Through hole, through the screw The through hole is locked to the end surface of the slide rail. However, the patent case has the following problems: 1312038 ι·= fixed device non-position function (fixed device and sliding end face are flat sighs) 'Therefore, the end faces of both ends of the slide rail must be drilled with multiple screw holes to fix the fixed The device has to process the curved surface and the receiving groove of the folding part. · This method greatly increases the processing cost; 2. The user needs to first lock the end of the plate on the fixing block, and then set the plate along the curved surface of the folding part. The fixing is fixed in the receiving groove, and finally the fixing block and the folding portion are locked on the sliding end surface by a plurality of screws, so that the structural design causes the assembly time-consuming problem and the relative manufacturing cost increases; Although the patent case has a dustproof function but does not have a stop function, it cannot avoid the slider falling out of the slide rail. 4. The plate needs to be matched with the curved surface of the fold joint, so a longer plate is required, thereby wasting material cost of the dust cover strip. . In order to improve the above-mentioned conventional non-blocking function, the industry has actively researched and developed another conventional technique, such as the US Patent No. US6764〇67, which covers the fixing device by means of a fixing member. A fixing portion is disposed on the two ends of the sliding rail, and the fixing portion is provided with a fixing hole; the covering strip is surrounded by the S-shaped portion between the pressing plates, and the fixing member cooperates with the fixing hole, and the pressing plate is fixed on the fixing plate The fixing portion is further fixed to the cover tape. However, after the conventional technology is used, the dust-proof cover tape fixing device has too many components and needs to be locked by screws, which is inconvenient to install; and in the case of 1312038, the cover tape must be surrounded by the s-shaped plate between the pressure plates. In turn, the length of the cover tape is increased, which causes waste of materials and increases cost, and assembly troubles arise. SUMMARY OF THE INVENTION Based on the above problems of the fixing device of the conventional cover tape, the inventors have succeeded in research and improvement, and finally realized the invention of the object of the following invention. That is, the primary object of the present invention is to simplify the structure of the fixing device, to achieve the function of the stopper and the pressing of the covering tape with a simple structure, and to shorten the assembly time, thereby reducing the manufacturing cost. A secondary object of the present invention is to make the cover tape only need to be covered until the sliding end face is flush to prevent material waste of the cover tape. In order to achieve the above object, the present invention is a pressing device for a linear sliding cover tape, the pressing device comprising: a body, a ring body, a pressing block and an elastic member; the body is generally "door" shaped The body has a convex portion at both ends of the "door" shaped body, and the convex portion is provided with an inverted surface, and a receiving hole and a through hole are arranged in the upper portion of the "door" shaped body, and the receiving hole is The perforations are connected to each other, and a top surface of the receiving hole is provided with a first limiting surface; the pressing block is formed by an inverted "τ" shaped body, which is composed of a column vertically connected with a pressing portion, and the column is composed of a pressing portion a through hole is provided, and the pressing portion and the column 1312038 1312038 are provided on one side of the press body, and a second limiting surface is disposed on the side of the pressing body; thereby, the elastic member is sleeved on the column of the pressing block Body, after the column is pierced through the through hole of the body, the elastic member is restricted between the first limiting surface and the second limiting surface, and the ring body is further disposed on the pressing block. After the through hole provided in the cylinder, the stroke of the pressing block can be restricted, and Finally, the user only needs to put a finger into the ring body and pull up the ring body. At this time, the 5 mil elastic member is in a compressed state, and the pressing device is sleeved on the slide rail provided with the cover tape ( The end portion can be implemented without the cover tape, and the hook surface of the convex portion of the main body and the rolling surface of the sliding rail are mutually abutted, and then the ring body is released by the elastic force of the elastic member. The pressing surface of the pressing portion is pressed on the covering tape (or the upper surface of the sliding rail), so that the body of the pressing device is displaced upward and deformed, and the inverted surface of the pressing device is more tightly fixed with the rolling surface of the sliding handle. The clamping device is held in a fixed state at three points (the inverted surface of the two convex portions and the pressing surface of the pressing block), so that the situation of the surface of the covering tape is prevented from being deformed. The pressing device can be installed without any hand tools. Moreover, the present invention considers that the pressing device is installed on the sliding rail, and the height of the sliding ends is increased. In order to avoid the problem, the ring body of the present invention is matched with the through hole of the compacting block. With the clearance fit, the ring body can rotate at least 18 degrees in a direction of 1312038. In short, in use, the ring body is in an upright state, and after use, the ring body is in a dumping state, so the ring is used after use. The state of the body is no additional height increase. In addition, after the cover tape of the present invention is applied to the slide rail, it is not necessary to extend the two end faces, and the use amount of the cover tape is reduced to avoid material waste. • A is intended to clearly illustrate the implementation features of the present invention. The following describes the progressive and practical aspects of the present invention: 1. The manufacturing cost of the components of the press apparatus of the present invention is less than that of the assembly of the slippery. 2. The pressing device of the present invention is easy to install and remove, and does not require a hand tool. 3. The pressing device of the present invention can fix the pressing device and the dustproof cover tape without any processing on the slide rail. ???4. The device of the present invention has the function of preventing the slider from falling off. For a better understanding of the features and technical features of the present invention, reference should be made to the following description of the embodiments of the present invention and the drawings. Any restrictions. 1312038 [Embodiment] Embodiments of the present invention are shown in the first to sixth figures. The present invention is a pressing device for a linear sliding cover tape, wherein the linear slide system comprises: a slide rail 2, The upper surface 2 2 is provided with a plurality of bolt holes 24 and a groove 2 3 , and a plurality of rolling surfaces are arranged on both sides of the long shaft; the slider 1 is generally provided with a "door" shape sleeve. On the slide rail 2, and linearly moving on the slide, and on the inner side, there is a rolling surface (not shown) opposite to the rolling surface 21 of the slide rail 2; a plurality of rolling elements (not shown), the system Between the rolling surface 2 1 of the sliding handle 2 and the rolling surface (not shown) of the slider 1; the two end covers 6' are respectively disposed on both end faces of the slider 1, and the rolling element is provided inside (not shown) an infinite loop return path (not shown); a cover strip 4 overlying the recess 23 (or directly over the upper surface 2 of the slipper 2 2) for sealing The bolt hole 24 of the sliding handle 2 prevents dust and dirt from accumulating in the bolt hole 24, thereby preventing foreign matter from entering the slider 1 indirectly from the slide rail 2. The bottom pressing device 5 is installed at the end of the sliding handle 2, and the pressing device 5 comprises: a body 51, a ring body 52, a pressing block 53, and an elastic member 504; The body 5 1 is generally a "door" shaped body, and a convex portion 5 1 1 is formed at both ends of the "door" shaped body. The convex portion 5 Wei 1312038 'is provided with an inverted surface 5 1 1 1 in the "door" shape. The upper part of the body is provided with a receiving hole 5 1 2 and a through hole 5 1 3, and the receiving hole 5 1 2 is connected with the through hole 51 1 , and the top end of the receiving hole 5 1 2 is provided with a first The limiting block 5 1 2 1 ; the pressing block 5 3 is formed by an inverted D-shaped body, which is composed of a column body 5 3 1 vertically connected to a pressing portion 5 3 2 , and the column body 5 3 1 is fastened There is a through hole 5 3 1 1 , and one side of the pressing portion 5 3 2 and the column body 5 3 1 is provided with a second limiting surface 5 3 2 2 , and the other side is provided with a pressing surface 5 3 2 1 The elastic member 5 4 is sleeved on the column 5 31 of the pressing block 5 3 , and the column 5 3 1 is inserted through the through hole 5 1 3 of the body 5 1 to make the elastic member 5 4 Is limited to between the first limiting surface 5 1 2 1 and the second limiting surface 5 3 2 2, and Member 52 disposed through the through hole of the cylinder 531 is provided after 5311, which can be pressed to limit movement of the block 53 for vertical travel. • The above is a detailed description of each component and its mutual relationship. The following describes the implementation of this embodiment: First, please refer to the third and fourth figures, which is the first embodiment of the present invention. The belt 4 is applied over the groove 2 3 of the slide 2, and the pressing device 5 is attached to the end of the slide 2, and the user only needs to put a finger into the ring body 5 2 to connect the ring body 5 2 is pulled up, at this time, the elastic member 54 is in a compressed state, and the pressing device 5 is sleeved to the end of the 11:[:S) 1312038 **' of the sliding handle 2, and the body 5 1 is The barb surface 5 1 1 1 of the convex portion 5 1 1 and the rolling surface 2 1 of the sliding handle 2 abut each other to re-release the ring body 5 2 , and the pressing portion is made by the elastic force of the elastic member 5 4 Pressing surface 5 3 2 1 of 5 3 2 is pressed onto the cover tape, so that the pressing device 5 is displaced upward and deformed, and after the deformation, the barb surface 5 3 2 1 and the rolling surface 2 1 of the slide rail 2 are more Tightly fixing 'allows the pressing device 5 to have three points (the barbed surface 5 1 1 1 of the two convex portions 511 and the pressing surface 5 3 2 1 of the pressing block 5 3 ) is held in a fixed state, thereby preventing the covering tape 4 ends Generating warpage case 'and preventing the slider 1 from falling out of the carriage 2 executive functions. Furthermore, please refer to the fifth embodiment, which is a second embodiment of the present invention. The sliding handle 2 may also be provided with no groove 2 3 , and the cover tape 4 may be directly coated on the upper surface 2 2 of the slide rail 2 . The effect of the present invention can also be achieved in this way, and the installation steps are the same as those of the first embodiment, and will not be described again. Finally, please refer to the fifth embodiment, which is the first embodiment of the present invention. If the sliding rail 2 is not covered with the covering tape 4, the pressing device 5 can also be mounted on the sliding rail 2 to prevent the sliding. The function of the slider 1 is dropped, and the installation steps are the same as those of the first embodiment, and will not be described again.
12 J312038 綜所上述’本發明之固定裝置不須藉由任何手工具， 即可將該壓制裝置牢固地安裝於該滑執上；且該壓制裝置 製造容易可快速大量生產，所以本發明之『具有產業之可 利用性』應已毋庸置疑，除此之外，在本案實施例所揭露 出的特徵技術，於申請之前並未曾見於諸刊物，亦未曾被 公開使用，不但具有如上所述功效增進之事實，更具有不 可輕忽的附加功效，是故，本發明的『新穎性』以及『進 鲁步性』都已符合專利法規，爰依法提出發明專利之申請， 祈請惠予審查並早日賜准專利，實感德便。 μ上所述實施例之揭示係用以說明本發明並非用以 限制本發明’故舉凡數值之變化與等效元件之置換，仍應 隸屬本發明之範疇。12 J312038 The above-mentioned fixing device of the present invention can be firmly mounted on the sliding device without any hand tool; and the pressing device is easy to manufacture and can be mass-produced quickly, so the present invention There is no doubt about the availability of the industry. In addition, the feature technology exposed in the examples in this case has not been seen in the publications before the application, nor has it been used publicly, not only with the above-mentioned enhancements. The fact that there is an additional effect that cannot be neglected is that the "novelty" and "introduction" of the present invention have been in compliance with the patent regulations, and the application for the invention patent is filed according to law, praying for review and giving it as soon as possible. Quasi-patent, real sense of virtue. The above description of the embodiments is intended to be illustrative of the present invention and is not intended to limit the invention.
13 -1312038 •八 【圖式簡單說明】 第一圖為本發明壓制裝置與線性滑軌之***圖。 第二圖為本發明壓制裝置與線性滑軌之組立圖。 第三圖為本發明壓制裝置作動示意圖。 第四圖為本發明壓制裝置靜態示意圖。 第五圖為本發明壓制裝置與不具凹槽之線性滑軌組立 圖。 Φ 第六圖為本發明壓制裝置與不具覆蓋帶之線性滑軌組 立圖。13 -1312038 • VIII [Simple description of the diagram] The first figure is an exploded view of the pressing device and the linear slide of the present invention. The second figure is an assembly diagram of the pressing device and the linear slide of the present invention. The third figure is a schematic view of the operation of the pressing device of the present invention. The fourth figure is a static schematic view of the pressing device of the present invention. The fifth figure is a vertical view of the pressing device of the present invention and the linear slide without the groove. Φ The sixth figure is a vertical view of the pressing device of the present invention and the linear sliding rail without the covering tape.
14 1312038 【主要元件符號說明】 1 滑塊 2 滑軌 2 1 滚動面 2 2 上表面 2 3 凹槽 2 4 螺栓孔 4 覆蓋帶 5 壓制裝置 5 1 本體 5 1 1 凸部 5 1 11 倒勾 面 5 1 2 容置孔 5 1 2 1 第一 限位面 5 1 3 穿孔 5 2 環體 5 3 壓制塊 5 3 1 柱體 5 3 11 通孔 5 3 2 壓制部 5 3 2 1 壓制 面 5 3 2 2 第二 5 4 彈性件 限位面 1514 1312038 [Description of main component symbols] 1 Slider 2 Slide rail 2 1 Rolling surface 2 2 Upper surface 2 3 Groove 2 4 Bolt hole 4 Cover tape 5 Pressing device 5 1 Body 5 1 1 Projection 5 1 11 Barb Face 5 1 2 accommodating hole 5 1 2 1 first limiting surface 5 1 3 perforation 5 2 ring body 5 3 pressing block 5 3 1 cylinder 5 3 11 through hole 5 3 2 pressing portion 5 3 2 1 pressing surface 5 3 2 2 Second 5 4 Elastic member limit surface 15