201006246 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種升降機構，尤其涉及一種用於調節顯 示幕高度之升降機構。 【先前技術】 隨著電腦之廣泛應用，其功能日益增加和完善，體積 亦趨向於輕薄化發展。由於液晶顯示裝置相對 CRT(Cathode Ray Tube，陰極射線管）顯示器具有體積小、 重量輕之優點，逐漸成為電腦之主流顯示裝置。為了方便 人們於較佳視角範圍及視線距離内觀看顯示幕，習知液晶 顯示裝置通常會設置一升降機構以實現對顯示幕之高度 之調整。 請參見圖1，一種習知用於液晶顯示裝置之升降機構 13，該液晶顯示裝置包括底座11、升降機構13、俯仰機 構15、樞轉機構17及液晶顯示幕（圖未示）。 升降機構13連接底座11及俯仰機構15,用於實現液 晶顯示幕相對於底座11上下移動，樞轉機構17設置於俯 仰機構15及液晶顯示幕之間，其與俯仰機構15藉由樞轉 軸155連接，分別用於使液晶顯示幕相對底座11旋轉及 俯仰。 升降機構13包括一升降件131、一導向架133及二彈 性件137。升降件131可滑動地套設於導向架133内。彈 性件137之第一端連接至導向架133，第二端連接至轉轴 132上，轉轴132固設於升降件131之樞接部136，轉軸 201006246 Ο Ο 132及彈性件137之間設有軸支架134，以可旋轉地支撐 轉軸132,軸支架134及轉軸132之間還設有摩擦件139， 以於轉軸132繞軸支架134旋轉時產生摩擦力，該摩捧力 及彈性件Χ37提供之彈力用於平衡液晶顯示幕之重力，使 =晶顯示幕定位於預設之位置。為使升降件Hi滑動平 ，該升降機構導向架133上連接有導向件135，升降件 上設有用於容納潤滑油之油槽138。該液晶顯示裝置 二匕括旋轉機構19，該旋轉機構19包括固定連接於底 二U之環形旋轉件192以及盤形旋轉支架194。旋轉件 旋轅表面與底座11固定連接’下表面與旋轉支架194可 也連接，從而使液晶顯示幕可相對於底座n旋轉。 件上述升降機構13採用升降件131、導向架133及彈性 件=7相配合之結構來實現液晶顯示幕之升降，為使升降 容^架133中順利滑動’還需設置導向件135及 【發=二S’油槽138 ’結構較為複雜，製造成本較高。 之升内容’有必要提供—種結構簡單、成本低廉 及與該之包括一支揮架、-活動架，二引導部 架上，东相連之一彈性組件，該二引導部設於該支撐 級件勺f一弓1導部之間之距離自上而下逐漸變小’該彈性 弓I導性件’該彈性件用於抵壓該引導部，以使該 ::活動架產生-與重力方向相反之支撐力。 、白知技術相比’本發明之升降機構藉由該彈性件與 201006246 . 該引導部之相互抵壓為該彈性組件提供一向上之支撐 . 力，以平衡液晶顯示幕之重力及實現液晶顯示幕之任意位 置停留，該升降機構結構簡單，製造成本較低。 【實施方式】 本發明之較佳實施方式公開一種升降機構，其適用於 帶有顯示器之電子裝置或多功能印表機。於本實施方式 中，以應用於液晶顯示裝置為例加以說明。 請參見圖2及圖3,液晶顯示裝置100包括一底座20、 一升降機構40、一俯仰機構60、一安裝架80以及與安裝 架80連接之液晶顯示幕（圖未示）。底座20用於支撐液 晶顯示裝置100之主體，俯仰機構60設於安裝架80及升 降機構40之間，俯仰機構60包括一與升降機構40相連 之連接架62，安裝架80用於裝設液晶顯示幕。 請參見圖4及圖5，本較佳實施方式所述之升降機構 40包括一支撐架41、二外導執42，二内滑軌43、二滾珠 φ 支架44、二引導件45、一活動架46、二滚輪47、一彈簧 48、二滾輪套49及二銷釘52。 支撐架41大體為一長方形板體，其包括一基板412 及二側板414，外導執42呈板條狀，其用於固定於支撐架 41之側板414上。内滑軌43形狀與外導軌42相似，其可 與外導執42滑動配合。滾珠支架44設於内滑軌43與外 導軌42之間，用於減小内滑執43與外導轨42相對滑動 之摩擦力。 二引導件45相對固設於支撐架41之基板412上，引 201006246 導件45包括一弧形引導部452,二引導件45之引導部452 間之距離自上而下逐漸變小。 活動架46包括一本體462、二由本體462二側垂直延 伸之連接板464、一由本體462 —端垂直延伸後向本體462 彎折形成之容納部466。本體462上開設有一連接槽 4622。二連接板464分別用於與二内滑執43固定連接。 容納部466内之空間形成一容納槽468，容納槽468與連 接槽4622相通。 滾輪47上開設有一圓形中心孔472。滾輪套49包括 一基部492及由基部492二側垂直延伸之連接片494。基 部492與二連接片494圍成之空間用於部分容納滾輪47。 連接片494上還開設有一連接孔4942，該連接孔4942與 滾輪47上之中心孔472相對應。彈簧48為一壓縮彈簧， 其用於抵壓於二滾輪套49之基部492之間。銷釘52包括 一釘帽522，該釘帽522之直徑大於連接槽4622之寬度。 組裝升降機構40時，請同時參閱圖6，首先將滾輪套 49部分置於活動架46之容納部466之容納槽468内，接 著將一滾輪47容納於一滾輪套49之基部492與二連接片 494圍成之空間内，然後將一銷釘52依次穿過活動架46 之連接槽4622、滾輪套49之一連接片494之連接孔4942、 滚輪47之中心孔472後與另一連接片494之連接孔4942 鉚接，從而將活動架46、滾輪47及滾輪套49三者連接起 來，此時滾輪47可相對滾輪套49轉動，而滾輪套49可 相對活動架46滑動；緊接著將彈簧48放入容納部466之 201006246 . 容納槽468内，再藉由另一鉚釘52將另一滾輪47、滾輪 . 架49與活動架46連接起來，此時，滾輪47、滾輪套49 及彈簧48共同構成了 一彈性組件。 組裝完彈性組件後，請再次參閱圖3，將内滑執43部 分插入於外導軌42内，且將滾珠支架44設於外導軌42 及内滑執43之間，從而組成一滑軌結構。然後將二外導 執42分別固定於支撐架41之二側板414上，緊接著將活 動架46之容納部466置於二引導件45之間，而位於容納 部466二端之滾輪47分別抵持於二引導件45之引導部452 上，最後再將活動架46之二連接片464跨過引導件45並 分別固定於二内滑軌43之下部。 升降機構40組裝完後，將連接有液晶顯示幕之俯仰 機構60之連接架62固定於内滑軌43之上部，從而將升 降機構40與液晶顯示幕連接起來。 請參閱圖2至圖3,當使用升降機構40降低液晶顯示 φ 幕之高度時，只需向該液晶顯示幕施加向下之作用力，以 使連接架62帶動内滑執43及滾珠支架44相對外導軌42 滑動，而内滑軌43又同時帶動活動架46向下運動，從而 使二滾輪47沿引導件45之引導部452向下滾動並逐漸靠 近，同時帶動二銷釘52於連接槽4622内滑動，此時，彈 簧48被逐漸壓縮並對引導件45產生逐漸增大之反作用 力。當活動架46運動至預定位置時，停止對液晶顯示幕 施加作用力，則引導件45對彈性組件及活動架46提供之 支撐力、引導件45與滾輪47之靜摩擦力、内滑轨43與 201006246 外導執42間之靜廑谀 摩擦力與液晶顯示幕之重力共同作用使 =暮達到平衡狀態並使其停止於該預定位置= 液曰曰：：幕尚度時之工作原理與降低液晶 之工作原理相似，不 门又子 架46之支樓力在於料件45㈣性組件及活動 6力W液晶顯示幕之升高逐漸減小。 ❹201006246 IX. Description of the Invention: [Technical Field] The present invention relates to a lifting mechanism, and more particularly to a lifting mechanism for adjusting the height of a display screen. [Prior Art] With the widespread use of computers, their functions are increasingly increasing and perfect, and their volume tends to be thinner and lighter. Since the liquid crystal display device has the advantages of small size and light weight with respect to a CRT (Cathode Ray Tube) display, it has gradually become a mainstream display device for computers. In order to facilitate viewing of the display screen within a preferred viewing angle range and line of sight distance, conventional liquid crystal display devices typically employ a lifting mechanism to effect adjustment of the height of the display screen. Referring to Fig. 1, a lifting mechanism 13 for a liquid crystal display device is known. The liquid crystal display device includes a base 11, a lifting mechanism 13, a tilting mechanism 15, a pivoting mechanism 17, and a liquid crystal display (not shown). The lifting mechanism 13 is connected to the base 11 and the tilting mechanism 15 for moving the liquid crystal display screen up and down relative to the base 11. The pivoting mechanism 17 is disposed between the tilting mechanism 15 and the liquid crystal display screen, and the tilting mechanism 15 is pivoted by the pivoting shaft 155. Connections are respectively used to rotate and tilt the liquid crystal display screen relative to the base 11. The lifting mechanism 13 includes a lifting member 131, a guiding frame 133 and two elastic members 137. The lifting member 131 is slidably sleeved in the guiding frame 133. The first end of the elastic member 137 is connected to the guide frame 133, and the second end is connected to the rotating shaft 132. The rotating shaft 132 is fixed to the pivoting portion 136 of the lifting member 131, and the rotating shaft 201006246 Ο Ο 132 and the elastic member 137 are disposed. A shaft bracket 134 is provided to rotatably support the rotating shaft 132. A friction member 139 is further disposed between the shaft bracket 134 and the rotating shaft 132 to generate a frictional force when the rotating shaft 132 rotates around the shaft bracket 134. The frictional force and the elastic member Χ37 are provided. The elastic force provided is used to balance the gravity of the liquid crystal display screen so that the crystal display screen is positioned at a preset position. In order to make the lifting member Hi slide flat, the lifting mechanism guide frame 133 is connected with a guiding member 135, and the lifting member is provided with an oil groove 138 for accommodating lubricating oil. The liquid crystal display device includes a rotating mechanism 19 including an annular rotating member 192 fixedly coupled to the bottom U and a disk-shaped rotating bracket 194. Rotating member The rotating surface is fixedly coupled to the base 11. The lower surface and the rotating bracket 194 can also be coupled so that the liquid crystal display can be rotated relative to the base n. The lifting mechanism 13 adopts a structure in which the lifting member 131, the guiding frame 133 and the elastic member=7 are matched to realize the lifting and lowering of the liquid crystal display screen. In order to smoothly slide the lifting and lowering frame 133, a guiding member 135 and a hair piece are also required. = Two S' oil tank 138 'The structure is more complicated and the manufacturing cost is higher. The content of the upgrade is 'necessary to provide' - a simple structure, low cost and one of the elastic components associated with the sway, the movable frame, the second guiding frame, and the east, the two guiding portions are arranged at the supporting level The distance between the guides f and the bow 1 is gradually reduced from top to bottom. The elastic member is used to press the guide to make the:: movable frame generates - and gravity Supporting force in the opposite direction. Compared with the 'the lifting mechanism of the present invention, the elastic member and the 201006246. The pressing portions of the guiding portion provide an upward support for the elastic component to balance the gravity of the liquid crystal display screen and realize the liquid crystal display. The curtain is stopped at any position, and the lifting mechanism has a simple structure and a low manufacturing cost. [Embodiment] A preferred embodiment of the present invention discloses a lifting mechanism suitable for an electronic device or a multifunction printer with a display. In the present embodiment, a liquid crystal display device will be described as an example. Referring to FIG. 2 and FIG. 3, the liquid crystal display device 100 includes a base 20, a lifting mechanism 40, a tilting mechanism 60, a mounting bracket 80, and a liquid crystal display screen (not shown) connected to the mounting bracket 80. The base 20 is used to support the main body of the liquid crystal display device 100. The tilt mechanism 60 is disposed between the mounting frame 80 and the lifting mechanism 40. The tilting mechanism 60 includes a connecting frame 62 connected to the lifting mechanism 40. The mounting frame 80 is used to mount the liquid crystal. Display screen. Referring to FIG. 4 and FIG. 5, the lifting mechanism 40 of the preferred embodiment includes a support frame 41, two outer guides 42, two inner slide rails 43, two ball φ brackets 44, two guide members 45, and an activity. The frame 46, the two rollers 47, a spring 48, two roller sleeves 49 and two pins 52. The support frame 41 is generally a rectangular plate body, and includes a base plate 412 and two side plates 414. The outer guide 42 is in the form of a strip for fixing to the side plate 414 of the support frame 41. The inner slide rail 43 is shaped like the outer rail 42 and is slidably engageable with the outer guide 42. The ball holder 44 is disposed between the inner slide rail 43 and the outer rail 42 for reducing the frictional force of the inner slide 43 and the outer rail 42 to slide relative to each other. The two guiding members 45 are oppositely fixed on the base plate 412 of the support frame 41. The guiding guide 04056 includes an arc-shaped guiding portion 452, and the distance between the guiding portions 452 of the two guiding members 45 gradually decreases from top to bottom. The movable frame 46 includes a body 462, two connecting plates 464 extending perpendicularly from the two sides of the body 462, and a receiving portion 466 extending from the end of the body 462 to the body 462. A connecting slot 4622 is defined in the body 462. The two connecting plates 464 are respectively used for fixed connection with the two inner slides 43. The space within the receptacle 466 defines a receiving slot 468 that communicates with the connecting slot 4622. A circular central hole 472 is defined in the roller 47. The roller sleeve 49 includes a base portion 492 and a connecting piece 494 extending perpendicularly from both sides of the base portion 492. The space enclosed by the base 492 and the two connecting pieces 494 is used to partially accommodate the roller 47. A connecting hole 4942 is also formed in the connecting piece 494, and the connecting hole 4942 corresponds to the center hole 472 on the roller 47. The spring 48 is a compression spring for biasing between the bases 492 of the two roller sleeves 49. The pin 52 includes a nut 522 having a diameter greater than the width of the coupling groove 4622. When assembling the lifting mechanism 40, please refer to FIG. 6 at the same time, firstly, the roller sleeve 49 is partially placed in the receiving groove 468 of the receiving portion 466 of the movable frame 46, and then a roller 47 is accommodated in the base 492 of the roller sleeve 49 and connected to the second portion. In the space enclosed by the piece 494, a pin 52 is sequentially passed through the connecting groove 4622 of the movable frame 46, the connecting hole 4942 of one of the roller sleeves 49, the central hole 472 of the roller 47, and the other connecting piece 494. The connecting hole 4942 is riveted to connect the movable frame 46, the roller 47 and the roller sleeve 49. At this time, the roller 47 can rotate relative to the roller sleeve 49, and the roller sleeve 49 can slide relative to the movable frame 46; The other roller 47, the roller frame 49 and the movable frame 46 are connected by the other rivet 52, and the roller 47, the roller sleeve 49 and the spring 48 are common. Forms a resilient component. After the elastic assembly is assembled, referring again to FIG. 3, the inner slide 43 portion is inserted into the outer rail 42 and the ball bracket 44 is disposed between the outer rail 42 and the inner slide 43 to form a slide rail structure. Then, the two outer guides 42 are respectively fixed on the two side plates 414 of the support frame 41, and then the receiving portion 466 of the movable frame 46 is placed between the two guiding members 45, and the rollers 47 at the two ends of the receiving portion 466 are respectively respectively received. Holding on the guiding portion 452 of the two guiding members 45, finally, the two connecting pieces 464 of the movable frame 46 are spanned across the guiding member 45 and fixed to the lower portions of the two inner sliding rails 43 respectively. After the lifting mechanism 40 is assembled, the connecting frame 62 to which the tilting mechanism 60 of the liquid crystal display is attached is fixed to the upper portion of the inner slide rail 43, thereby connecting the lifting mechanism 40 to the liquid crystal display panel. Referring to FIG. 2 to FIG. 3, when the lifting mechanism 40 is used to lower the height of the liquid crystal display φ screen, only a downward force is applied to the liquid crystal display screen, so that the connecting frame 62 drives the inner sliding 43 and the ball holder 44. The inner slide rail 43 slides, and the inner slide rail 43 simultaneously drives the movable frame 46 to move downward, so that the two rollers 47 roll down and gradually approach along the guiding portion 452 of the guide member 45, and simultaneously drive the two pins 52 to the connecting groove 4622. The inner slide, at this time, the spring 48 is gradually compressed and produces a gradually increasing reaction force to the guide 45. When the movable frame 46 is moved to the predetermined position, the application of the force to the liquid crystal display screen is stopped, and the supporting force provided by the guiding member 45 to the elastic assembly and the movable frame 46, the static friction force of the guiding member 45 and the roller 47, and the inner sliding rail 43 are 201006246 The static friction between the 42 outer guides and the gravity of the liquid crystal display causes the 暮 to reach equilibrium and stop at the predetermined position. = liquid 曰曰:: the working principle of the screen and reduce the liquid crystal The working principle is similar, and the support of the sub-frame 46 is that the material 45 (four) component and the movable 6-force W liquid crystal display screen are gradually reduced. ❹
及』知升降機構’該升降機構40藉由彈性組件 架46之升降2合提供讀力及摩擦力，從而實現活動 構40結構簡單幕之任意位置停留，該升降機 零件較>，故製造成本較低。此外，該 ^降機構40於裳配不同重量之液晶顯示幕時只需更換彈 貫48即可’互換性較好’且整個升降機構40之厚度較小’ 於包裝及運輸時可節省空間。 可以理解，彈簧48亦可為其他用於彈性抵頂滚輪47 之彈性件’如彈片、橡膠等。 引導件45之引導部452亦可設置為如圖7所示之斜 線形引導部452a等其他形狀；同時亦可於狐形引導部452 或斜線形引導部452a上設置台階，如圖8及9所示之引導 部452b、452c ;或者如圖1〇所示，僅—引導件4父之引 導部452d為弧形，而丨一引導件婉之料部462d為直 線形，也就是說’二引導部間之距離自上而下逐漸減小即 可。當然’亦可僅-引導件之引導部為斜線形、設台階之 斜線形或設台階之弧形，而另一引導部為與該引導部形狀 不同之弧形、設台階之斜線形、設台階之弧形或直線形中 之一種。此外，引導件45可凸設於支撐架41上，亦可於 201006246 支撐架41上開設凹槽，並於圍成凹槽之側壁上設置引導 部 452。 綜上所述，本發明確已符合發明專利要件，爰依法提 出專利申請。惟，以上所述者僅為本發明之較佳實施方 式，舉凡熟悉本案技藝之人士，於援依本案發明精神所作 之等效修飾或變化，皆應包含於以下之申請專利範圍内。 【圖式簡單說明】 圖1係一種習知升降機構之立體分解圖。 圖2係應用本發明升降機構較佳實施方式之液晶顯示 裝置之立體圖。 圖3係本發明升降機構較佳實施方式之立體組裝圖。 圖4係圖3之升降機構之立體分解圖。 圖5係圖3之升降機構另一視角之立體分解圖。 圖6係本發明升降機構較佳實施方式之局部立體組裝 圖。 圖7係本發明升降機構之引導部為斜線形時之平面示 意圖。 圖8係本發明升降機構於弧形引導部上設置台階時之 平面示意圖。 圖9係本發明升降機構於斜線形引導部上設置台階時 之平面示意圖。 圖10係本發明升降機構二引導部分別為弧形及直線 形之平面示意圖。 【主要元件符號說明】 11 201006246 液晶顯示裝置 100 底座 20 升降機構 40 支撐架 41 基板 412 侧板 414 外導執 42 内滑軌 43 滾珠支架 44 引導件 45、46d 引導部 452 ' 452a、452b、 452c、462d 活動架 46 本體 462 連接槽 4622 連接板 464 容納部 466 容納槽 468 滚輪 47 中心孔 472 彈簧 48 滾輪套 49 基部 492 連接片 494 連接孔 4942 銷釘 52 釘帽 522 俯仰機構 60 安裝架 80 φ 12And the lifting mechanism 40 provides the reading force and the friction force by the lifting and lowering of the elastic component frame 46, thereby realizing the arbitrary position of the movable structure 40 structure, and the lifting parts are smaller than the manufacturing cost. Lower. In addition, the lowering mechanism 40 can replace the elastic 48 when the liquid crystal display screens of different weights are used, so that the 'interchangeability is good' and the thickness of the entire lifting mechanism 40 is small', which saves space during packaging and transportation. It will be appreciated that the spring 48 can also be other resilient members such as springs, rubber, etc. for the resilient abutment roller 47. The guiding portion 452 of the guiding member 45 may also be provided in other shapes such as the oblique guiding portion 452a as shown in FIG. 7; at the same time, a step may be provided on the fox-shaped guiding portion 452 or the oblique guiding portion 452a, as shown in FIGS. 8 and 9. The guide portions 452b, 452c are shown; or as shown in FIG. 1A, only the guide portion 452d of the guide member 4 is curved, and the material portion 462d of the first guide member is linear, that is, 'two The distance between the guides can be gradually reduced from top to bottom. Of course, the guide portion of the guide member may be a diagonal line shape, a stepped diagonal line shape or a stepped arc shape, and the other guide portion has an arc shape different from the shape of the guide portion, and a stepped oblique line shape. One of the arcs or straight lines of the steps. In addition, the guiding member 45 can be protruded from the support frame 41, and a groove can be formed on the support frame 41 of the 201006246, and a guiding portion 452 is disposed on the side wall surrounding the groove. In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art of the present invention should be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view of a conventional lifting mechanism. Fig. 2 is a perspective view of a liquid crystal display device to which a preferred embodiment of the elevating mechanism of the present invention is applied. Figure 3 is a perspective assembled view of a preferred embodiment of the lifting mechanism of the present invention. Figure 4 is an exploded perspective view of the lifting mechanism of Figure 3. Figure 5 is an exploded perspective view of another elevational view of the lifting mechanism of Figure 3. Figure 6 is a partial perspective assembled view of a preferred embodiment of the lifting mechanism of the present invention. Fig. 7 is a plan view showing a state in which the guide portion of the elevating mechanism of the present invention is oblique. Figure 8 is a plan view showing the elevation mechanism of the present invention when a step is provided on the curved guide portion. Fig. 9 is a plan view schematically showing a step in which the elevating mechanism of the present invention is provided with a step on the oblique guide portion. Fig. 10 is a schematic plan view showing the two guiding portions of the lifting mechanism of the present invention in an arc shape and a straight line shape, respectively. [Main component symbol description] 11 201006246 Liquid crystal display device 100 Base 20 Lifting mechanism 40 Support frame 41 Substrate 412 Side plate 414 Outer guide 42 Inner slide rail 43 Ball bracket 44 Guides 45, 46d Guide portions 452 ' 452a, 452b, 452c 462d movable frame 46 body 462 connecting groove 4622 connecting plate 464 receiving portion 466 receiving groove 468 roller 47 central hole 472 spring 48 roller sleeve 49 base 492 connecting piece 494 connecting hole 4942 pin 52 nail cap 522 pitch mechanism 60 mounting frame 80 φ 12