201200954 六、發明說明： 【發明所厲之技術領域】 本發明關於一種投影裝置’尤指一種具有升降功能，且可改變 投影光線路徑之投影裝置。 【先前技術】 投影機除了用在一般辦公室的會議報告外，由於具備視聽播放 功能，亦經常於各種專題討論或學術課程中使用。可以預見地，隨 著投影機的應用愈來愈廣泛，投影機的使用方式也變得愈來愈多樣 化。一般而言，傳統的投影機只能將光線投射在其前方的投影平面 上。換e之，當傳統的投影機放置於一平面上時，此傳統的投影機 無法將光線投射在相同的平面上。由於傳統的投影機之投影光線路 杈無法改變，因此在應用上會受到較多的限制。 鲁 【發明内容】 本發明的目的之—在於提供—種投影裝置，其具有升降功能。 、另目的在於提供一種投影裝置，其可改變投影光線 4 201200954 根據-實施例，本發明之投影裝置包含—底座、—第一侧牆、 -第-移動平台、-傳動件、—傳動皮帶、—第_滑動件、一^二 移動平台以及-投影單元。第-側牆設置於底座上 可移動地設置在第-側牆上。傳動件之一端樞接於第一移動平^ 傳動皮帶可轉動地設置於傳動件上。第一滑動件之一端樞接於側 牆，而第-滑動件之另-端可移動地設置於傳動件上，且固定於傳 鲁動皮帶上。第二移動平台可移動地設置於傳動件上，且固定於傳動 皮帶上。第二移動平台與第一滑動件相對設置。投影單元設置於第 -移動平台上。當第-移動平台相對底座移動時，第—移動平台帶 動傳動件移動，傳動件相對第-移動平台轉動，第一滑動件相:側 牆轉動，且傳動皮帶相對傳動件轉動，以帶動第二移動平台相對傳 動件移動。 於此實施例中，投影裝置更可包含一反射鏡，樞接於第二移動 鲁平台。反射鏡反射自投影單元投射出之光線，赠變投影光線路徑。 舉例而言，當底座放置於-平面上，且第二移動平台相對傳動件移 .動至一投影位置時，反射鏡可將投影單元投射出之光線反射至相同 的平面。 因此，根據上述之機構設計，當第一移動平台相對底座移動時， 投影單元也會隨著第二移動平台被帶動，進而達到升降的功能。此 外’.本發明之投影裝置可利用反射鏡反射自投影單元投射出之光 201200954 n ’使得本發明之投影裝置的應用範圍更廣 泛0 關於本發明之伽與精神可以藉由町的發明詳述及所附圖式 得到進一步的瞭解。 【實施方式】 清參閱第1圖至第5圖，第1圖為根據本發明-實施例之投影 裝置1的立體圖，其中篦 、一移動千。22處於一收合位置；第2圖為 第1圖中的投桃置1的側視圖；第3圖為第1圖中的投影裝置i Γ另一視角的立體圖；第4圖為第1圖中的第-移動平台Η的立體 圖，第5圖為第3圖中的傳動件16的内視圖。 如第1、第3圖及第5圖所示，投影裳置 一第一侧牆12、一第二側牆13、-第-移動平台14、一卿 :!動皮帶1:第一滑動件20、一第二滑動件2i、-第二移動 一驅動單元如及4輪組34 28、複數個滑執3〇、 置於底座1G上。於此實施例中，投影裝"與第二侧# 13皆設 個齒條28，該些雜3G分別設置於第1側^含三個滑執30及一 内侧面，而齒條28則設置於第二側牆13之二或第二側牆13之 係用以配合齒條28,使第-移動平a 14 W面。然而，滑執3〇 ° 4可以平順地相對底座H)移 201200954 動，因此滑軌30的數量並 二側牆13上(亦可設置^彳為限，域條28也稀設置第 置於第—側牆12上），可視實際義而決定。 二第:圖所示’第—移動平台14包含 軸触蝴1财的三個滑 而彳明的是，滑動部140的數量传盥滑軌30 的數量相配合。換言之，、.典知如， 妖罝你興μ轨川 f Μ用Μ — '月動。Η40的數量亦不以三個為限，可視 貫際應用而決疋。於實降廡用由_.^ …α用中，可在母一個滑動部140上設置滑 "，以吏母一個滑動部140可在對應的滑軌3〇中平順地移動。 is動早兀n置於第—雜平纟14上，錄組3顿連接於驅 動单元32且喷合於齒條28。於此實施射，驅動單元32可為-馬 達。齒輪組34包含-第—齒輪34〇以及一第二齒輪如。第一齒輪 340連接於驅動單元32之輸出端32〇。第二齒輪342梅接於第一移 動平台14且分別哺合於第一齒輪34〇與齒條28。藉此，當驅動單 元32運作時’即可驅動第一齒輪34〇，並帶動第二齒輪如相對齒 條28轉動’以使第—移動平纟Η相對底座10移動。如第1圖所示， 若第二齒輪342朝辦針的方向轉動’娜—鶴平台14會被帶動 朝遠離底座10的方向移動；若第二齒輪342朝逆時針的方向轉動， 則第一移動平台14會被帶動朝接近底座 10的方向移動。於此實施 例中’可將第一齒輪340之齒數設計為少於第二齒輪342之齒數， 以對驅動單元32之輸出進行減速。需說明的是，第一齒輪340之齒 數與第二齒輪342之齒數可配合齒條28做設計，視實際應用而定。 201200954 傳動皮㈣可轉動地設置於傳動件16上。傳動件16之一端藉 由一可轉動的軸件36樞接於第-移動平台14。於此實施例中，傳 動件16可由兩殼體漏組成。如第5圖所示，殼體16〇巾具有一凹 槽162，且傳動皮帶18可轉動地設置於凹槽162中。第一滑動㈣ 之-端藉由-可轉動的軸件38樞接於第一側膽12，而第一滑動件 2〇之另-端可移動地設置於傳動件16之凹槽162中關定於傳 動皮㈣上。此外，第二移動平台22連接於第二滑動件21之一端， 而第二滑動件21之另-端可移動地設置於傳動件Μ之凹槽⑹ :二固定於傳動皮帶18上。如第5 _示，與第二滑動件 =二移動平台22與第一滑動件卻相對設置。此外，投影單元 樞接又於Γ第二移動平台22上，而反射鏡26藉由—可轉動的轴㈣ 麵 纟22 °卿姆，投㈣24可為一般的 請參閱第6圖至第8圖，第6圖為 朝遠離底座_方向移動後的惻視圖，第7圖^移動平❹ 16的内視圖，第8 〜第6圖中的傳動件 平台Μ移動至财的第-移動平台14帶動第二移動 驅動第一齒輪34_ 早❿開始運作，以 時，第齒輪342朝順時針的方向 第移動+台14會被帶動朝遠離底座 ⑽動 第一移動平台U會帶動傳動件16向上移動，且此時， 36為軸心相對第—移動平台Μ轉動 牛丨6 «轴件 M铒第6圖所示。同 201200954 時，第-滑動件20以轴件38為轴 一滑動件㈣1樞接於第—· /第―側牆12轉動。由於第 與第二移動平台22之第二滑動件二二且第-滑動件20的另-端 上，傳動皮帶18即會相對傳動件16她端分卿定於傳動皮帶18 連接之第二移動平台22相對，動’以帶動與第二滑動件 示。最後，第二移動平二 移動’如第5圖與第7圖所 投影位置，如第8圖動而相對傳動㈣移動至一 鲁使用，反射鏡26即可將投影單元及反射鏡26係搭配 1〇所放置的平面44上，進而於平面44上开^先線42反射至底座 應用中，依據反射原理，謂㈣投影畫面你。於實際 角度的配合設計，來調整所需的投影晝面46的^鏡26之高度與 動當=置1使用完畢後，可使驅動⑽驅動第 對第一側# 12|| 5 π動件20以軸件38為軸心相 第二滑帶j相對傳動件㈣動，以帶動與 位置移動至第2圖所示的收人位f ^件16攸第8圖所不的投影 合的過程中碰觸_ 16，；：=;月的是’若反射鏡％在收 二移動平心轉動，如第I鏡=會以軸件仙為軸心相對第 第圖所不。耜此，可避免反射鏡26在收 9 201200954 22^ 置時，反射鏡26即會因重力_===騎示的投影位 底：==上述之機構設計，當第-移動平台相對 降的功能。'此㈣蝴，進而達到升 投射出之#始、‘场裝置可利用反射鏡反射自投影單元 用範圍更廣泛1改變投影姐路徑’使得本㈣之鄉裝置的應 、所述僅為本發明之較佳實施例，凡依本發明巾請專利範圍 所做之解變化與修飾，皆應屬本發明之涵蓋範圍。 【圖式簡單說明】 第1圖為根據本發明-實施例之投職置的立體圖，其中第二 移動平台處於一收合位置。 第2圖為第1圖中的投影裝置的側視圖。 第3圖為第1圖中的投影褒置於另-視角的立體圖。 第4圖為第1圖中的第—移動平台的立體圖。 第5圖為第3圖中的傳動件的内視圖。 第6圖為第2圖中的第—移動平台朝遠離底座的方向移動後的 侧視圖。 201200954 第7圖為第6圖中的傳動件的内視圖。 第8圖為第2圖中的第一移動平台帶動第二移動平台移動至一 投影位置的側視圖。 【主要元件符號說明】201200954 VI. Description of the Invention: [Technical Field] The present invention relates to a projection apparatus, particularly a projection apparatus having a lifting function and capable of changing a path of a projected light. [Prior Art] In addition to the conference report in the general office, the projector is often used in various thematic discussions or academic courses due to its audiovisual playback function. It is foreseeable that as projectors become more widely used, the use of projectors becomes more diverse. In general, a conventional projector can only project light onto the projection plane in front of it. In other words, when a conventional projector is placed on a plane, this conventional projector cannot project light onto the same plane. Since the projection light path of a conventional projector cannot be changed, it is subject to more restrictions in application. SUMMARY OF THE INVENTION It is an object of the present invention to provide a projection apparatus having a lifting function. Another object is to provide a projection device that can change the projection light 4 201200954. According to an embodiment, the projection device of the present invention comprises a base, a first side wall, a first moving platform, a transmission member, a transmission belt, - a _ slider, a two-moving platform, and a - projection unit. The first side wall is disposed on the base and is movably disposed on the first side wall. One end of the transmission member is pivotally connected to the first moving flat drive belt and rotatably disposed on the transmission member. One end of the first sliding member is pivotally connected to the side wall, and the other end of the first sliding member is movably disposed on the transmission member and fixed to the transmission belt. The second moving platform is movably disposed on the transmission member and fixed to the transmission belt. The second moving platform is disposed opposite to the first sliding member. The projection unit is disposed on the first mobile platform. When the first moving platform moves relative to the base, the first moving platform drives the transmission member to move, the transmission member rotates relative to the first moving platform, the first sliding member phase: the side wall rotates, and the transmission belt rotates relative to the transmission member to drive the second The mobile platform moves relative to the transmission member. In this embodiment, the projection device further includes a mirror pivotally connected to the second mobile platform. The mirror reflects the light projected from the projection unit and presents a variable projection light path. For example, when the base is placed on a plane, and the second moving platform is moved relative to the transmission member to a projection position, the mirror can reflect the light projected by the projection unit to the same plane. Therefore, according to the above-mentioned mechanism design, when the first moving platform moves relative to the base, the projection unit is also driven along with the second moving platform, thereby achieving the function of lifting and lowering. In addition, the projection device of the present invention can reflect the light projected from the projection unit by the mirror 201200954 n 'to make the application range of the projection device of the present invention wider. 0 The gravitation and spirit of the present invention can be detailed by the invention of the town. And the drawings are further understood. [Embodiment] Referring to Figs. 1 to 5, Fig. 1 is a perspective view of a projection apparatus 1 according to an embodiment of the present invention, in which 篦 and a movement are thousands. 22 is in a collapsed position; Fig. 2 is a side view of the pitching device 1 in Fig. 1; Fig. 3 is a perspective view of the projection device i in Fig. 1 from another angle of view; Fig. 4 is a first view A perspective view of the first moving platform ,, and Fig. 5 is an internal view of the transmission member 16 in Fig. 3. As shown in the first, third and fifth figures, the projection skirts a first side wall 12, a second side wall 13, a first moving platform 14, a Qing:! moving belt 1: a first sliding member 20, a second sliding member 2i, a second moving a driving unit such as a 4-wheel set 34 28, a plurality of sliding handles 3, placed on the base 1G. In this embodiment, the projection device " and the second side #13 are each provided with a rack 28, which is respectively disposed on the first side, including three sliding handles 30 and an inner side, and the rack 28 is The second side wall 13 or the second side wall 13 is arranged to fit the rack 28 so that the first movement is a flat surface. However, the slipper 3〇° 4 can smoothly move the 201200954 relative to the base H), so the number of the slide rails 30 and the two side walls 13 (may also be set to limit, the domain bar 28 is also sparsely set to the first - on the side wall 12), depending on the actual meaning. Second: The first mobile platform 14 includes three slides that are axially touched. It is clear that the number of slides 140 matches the number of slide rails 30. In other words, the classic knowledge, such as, the enchanting you, the 轨 轨 f f f Μ Μ Μ ' - '月 moving. The number of Η40 is not limited to three, and it can be determined by continuous application. In the case of using _.^ ...α for the actual lowering, a sliding portion can be provided on the female sliding portion 140, so that one sliding portion 140 of the female parent can smoothly move in the corresponding sliding rail 3〇. It is placed on the first-stage, and the recording group 3 is connected to the driving unit 32 and sprayed to the rack 28. In this case, the drive unit 32 can be - motor. Gear set 34 includes a -first gear 34" and a second gear such as. The first gear 340 is coupled to the output 32 of the drive unit 32. The second gear 342 is coupled to the first moving platform 14 and is respectively supported by the first gear 34 and the rack 28. Thereby, the first gear 34 is driven when the driving unit 32 is operated, and the second gear is rotated, e.g., relative to the rack 28, to move the first moving flat relative to the base 10. As shown in Fig. 1, if the second gear 342 is rotated in the direction of the needle, the 'na-crane platform 14 is driven to move away from the base 10; if the second gear 342 is rotated counterclockwise, the first The mobile platform 14 is driven to move toward the base 10. In this embodiment, the number of teeth of the first gear 340 can be designed to be smaller than the number of teeth of the second gear 342 to decelerate the output of the drive unit 32. It should be noted that the number of teeth of the first gear 340 and the number of teeth of the second gear 342 can be designed in accordance with the rack 28, depending on the actual application. 201200954 The drive skin (4) is rotatably disposed on the transmission member 16. One end of the transmission member 16 is pivotally coupled to the first moving platform 14 by a rotatable shaft member 36. In this embodiment, the drive member 16 can be comprised of two housing drains. As shown in Fig. 5, the housing 16 has a recess 162 and the drive belt 18 is rotatably disposed in the recess 162. The end of the first sliding (four) is pivotally connected to the first side bush 12 by the rotatable shaft member 38, and the other end of the first sliding member 2 is movably disposed in the recess 162 of the transmission member 16. Set on the transmission skin (four). In addition, the second moving platform 22 is connected to one end of the second sliding member 21, and the other end of the second sliding member 21 is movably disposed on the groove (6) of the transmission member: two is fixed to the transmission belt 18. As shown in the fifth embodiment, the second sliding member 22 is disposed opposite to the first sliding member. In addition, the projection unit is pivotally connected to the second moving platform 22, and the mirror 26 is rotated by the axis (four), the surface is 22°, and the projection (four) 24 is normal. Please refer to FIG. 6 to FIG. Fig. 6 is a side view of the moving side away from the base _ direction, Fig. 7 is an internal view of the moving flat cymbal 16, and the transmission part platform of the eighth to sixth figures is moved to the first mobile platform 14 The second moving drive first gear 34_ starts to operate early, when the first gear 342 moves in the clockwise direction + the table 14 is driven to move away from the base (10), the first moving platform U will drive the transmission member 16 to move upwards, At this time, 36 is the axis relative to the first-moving platform, and the burdock 6 «shaft member M is shown in Fig. 6. In the same manner as 201200954, the first sliding member 20 is pivoted by the shaft member 38. A sliding member (4) 1 is pivotally connected to the first/first side wall 12 for rotation. Due to the second sliding member of the second and second moving platform 22 and the other end of the first sliding member 20, the transmission belt 18 is opposite to the transmission member 16 and the second movement of the transmission belt 18 is determined. The platform 22 is opposite, moving 'to drive and the second sliding member. Finally, the second moving flat two moves 'the projected position as shown in Fig. 5 and Fig. 7, as shown in Fig. 8 and relative to the transmission (4) to move to a Lu, the mirror 26 can match the projection unit and the mirror 26 1 〇 placed on the plane 44, and then on the plane 44 open ^ first line 42 reflected to the base application, according to the principle of reflection, said (four) projection screen you. In the actual angle of the design, to adjust the height of the mirror 26 of the desired projection surface 46 and the movement = when set to use 1, the drive (10) can drive the first pair of first side # 12 | | 5 π moving parts 20 with the shaft member 38 as the axial center of the second sliding belt j relative to the transmission member (four) to drive and move the position to the position shown in Figure 2, the projection position of the figure 16 In the middle touch _ 16,;:=; the month is 'If the mirror % is in the second movement, the flat rotation, such as the first mirror = will be the axis of the shaft as the axis relative to the first picture. In this way, when the mirror 26 is closed, the mirror 26 will be positioned by the gravity _=== the bottom of the projection position: == the above-mentioned mechanism design, when the first-mobile platform is relatively lowered Features. 'This (four) butterfly, and then reach the projection of the # start, 'field device can be reflected by the mirror from the projection unit with a wider range of 1 change the projection sister path' so that the device of this (four) home, the description is only the invention The preferred embodiments of the invention are subject to change and modification of the scope of the invention in accordance with the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a job placement according to an embodiment of the present invention, wherein the second mobile platform is in a collapsed position. Fig. 2 is a side view of the projection device in Fig. 1. Figure 3 is a perspective view of the projection 第 in Figure 1 placed in another perspective. Fig. 4 is a perspective view of the first mobile platform in Fig. 1. Fig. 5 is an internal view of the transmission member in Fig. 3. Fig. 6 is a side view of the first moving platform in Fig. 2 moving away from the base. 201200954 Figure 7 is an internal view of the transmission member in Figure 6. Figure 8 is a side elevational view of the first mobile platform of Figure 2 moving the second mobile platform to a projected position. [Main component symbol description]
1 投影裝置 10 底座 12 第一側牆 13 第二側牆 14 第一移動平台 16 傳動件 18 傳動皮帶 20 第一滑動件 21 第二滑動件 22 第二移動平台 24 投影單元 26 反射鏡 28 齒條 30 滑軌 32 驅動單元 34 齒輪組 36、38、40 軸件 42 光線 44 平面 46 投影畫面 140 滑動部 142 滑輪 160 殼體 162 凹槽 320 輸出軸 340 第一齒輪 342 第二齒輪1 Projection device 10 Base 12 First side wall 13 Second side wall 14 First moving platform 16 Transmission member 18 Transmission belt 20 First sliding member 21 Second sliding member 22 Second moving platform 24 Projection unit 26 Mirror 28 Rack 30 Slide 32 Drive unit 34 Gear set 36, 38, 40 Shaft 42 Light 44 Plane 46 Projection screen 140 Slide 142 Pulley 160 Housing 162 Groove 320 Output shaft 340 First gear 342 Second gear