201248302 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種折疊式投影板，特別是一種設有一 可撓性板之折疊式投影板。 【先前技術】 傳統用於簡報或投影圖像之投影布幕，不論是下拉式 或是電動式都需要耗費安裝人力，並且此類的投影布幕體 積都很大攜帶不便，無法機動移動投影布幕的位置，只適 合定點使用。 而先前技術中已經揭露之一種折疊式投影板，其係可 將摺疊投影板攜帶，但是此案之投影螢幕乃直接固定在板 材上，無法彎折投影螢幕，所以該種摺疊式折疊式投影板 的折疊方式需考量到投射螢幕的尺寸，因此在折疊後仍佔 有一定的體積，無法進一步縮小。 因此有必要提供一種新的折疊式投影板，以改善先前 技術之缺失。 【發明内容】 本發明之主要目的係在提供一種設有可撓性板之折疊 式投影板。 為達成上述之目的，一種折疊式投影板包括：外殼、 投影布幕以及可撓性板。外殼包括第一殼體、第二殼體以 201248302 及第三殼體，其中第三殼體位於第一殼體與第二殼體之 間。第三殼體包括容置空間，且容置空間包括一開口，第 一殼體以及第二殼體可分別以朝向開口之方向折疊。投影 布幕用以顯示投影影像，可撓性板可供彎折且分別與^景^ 布幕以及殼體連接，且可撓性板用以支撐該投影布幕。 在本發明之一實施例中，可撓性板係由聚甲基丙烯酸 甲酯（PMMA )所製成。 在本發明之另一實施例中，可撓性板係透過兩加強板 與第一殼體以及第二殼體連接。 【實施方式】 為讓本發明之上述和其他目的、特徵和優點能更明顯 你^下文特舉出本發明之具體實施例，並配合所附圖式， 作詳細說明如下。 、下月併參考圖1至圖3關於本發明之折疊式投影板 實把例。圖i為本發明之折疊式投影板之一實施例之分 ^意圖j圖2為本發明之折疊式投影板之—實施例展開時 、視圖’圖3為本發明之折#式投影板之—實施例折疊時 毅3 M H明之折疊式投影板1包括 、=衫布幕20以及可撓性板3〇。外殼1〇包括第一 於第二:=12以及第三殼體13,其中第三殼體… ^ ^ 一第一殼體12之間。第三殼體13包括容 < a ，谷置空間131包括開口 1311，第一殼體11以, 201248302 第二Μ η V分別朝向開口 1311之方向折疊，藉此 本發明之折疊式投影板1有一展開狀態（如圖2所示）以 及-收合狀態（如圖3所示）。投影布幕2()用來顯=投與 影像，可撓性板30可供彎折且分別與投影布幕2〇以及^ 殼10連接，且可撓性板3G用以讀該投影布幕。本發明 之可撓性板30可為一軟性墊板，更佳的是一種表面平整 滑、能隨外殼10彎折，且展開後可撓性板3〇上不會 皆折痕跡、並且具有優異加工性（可在可撓性板3()上塗佈 銀漆或反光材料）等特性之可撓性板。 根據本發明之一實施例，第一殼體u與第二殼體 為大小相等之兩平板，第三殼體13為一 1;字型殼體，且u 字型開口兩端分別與第-殼體u與第二殼體12連接。可 撓性板30係利用黏膠與投影布幕2〇、第一殼體u以及第 二殼體12連接，並且可撓性板％係由聚甲基丙婦酸甲醋 (PMMA )所製成之壓克力板，但本發明不以此為限，任 何由有機玻璃製成之可撓性板皆適用於本發明。在此需注 意的疋’本發明適用之外殼1G的材質可以是硬紙板、塑膠 板或是其他板材，投影布幕2G可以是使㈣白（Maue)、 珠光（Beads)或是顆粒塗層（Peads)等材質之投影布幕。 如圖1與圖2所示，當本發明之折疊式投影板丄處於 展開狀態時，外殼10本身可以90度直立，此時第一殼體 11與第二殼體12分別位於第三殼體13之兩邊，且第一殼 體11與第一殼體12的夾角實質上呈18〇度。此時可撓性 板30隨外殼10展開以支撐投影布幕2〇,藉此投影布幕2 〇 也可完全展開以接收投影光源，讓投影影像顯示在投影布 201248302 ，20上。再者，為了讓本發明之折疊式投影板i於展開時 能更穩固地直立，本發明之一實施例之外殼1〇更包括第一 支f裝置14以及第二支持裝置15。第一支持裝置14與第 一殼體11連接（不與第三殼體13接觸之一端），第二/支持 裝置15與第二殼體12連接（不與第三殼體13接觸之一 端）’藉此增加折疊式投影板1於展開時的穩定直立之力 道。此外，亦可在本發明之可撓性板3〇上與投影布幕 接觸之一面塗上銀漆或反光材料，以提高投影布幕的 度。 如圖2所示’若將處於展開狀態之本發明之折疊式投 影板1之第一殼體U與第二殼體12都以朝向開口 1311之 方向折疊（如圖2中虛線箭號所示之方向），就能讓本發明 之折疊式投影板1呈現如圖3所示之收合狀態。此時外殼 1〇會呈現類U字型的彎折，而第一殼體11與第二殼體12 分別形成U字型直線的部份，第三殼體13則為U字型弯 折的部份。當本發明之外殼1〇折疊時，可撓性板30也會 隨外殼10折疊而彎折，連帶使得可撓性板30與投影布幕 20也呈現相似類u字型彎折，而如圖3所示，可撓性板 3〇與投影布幕20彎曲的部份會被容納在第三殼體13的容 納空間131内。 根據本發明之一實施例，當本發明之折疊式投影板1 處於收合狀態時，第一支持裝置14與第二支持裝置15會 分別收入外殼1〇 U字型開口的内侧，也就是分別收入第一 殼體11與第二殼體12之内側。在此需涑意的是’為加強 折疊式投影板1處於折疊狀態的固定力道’本發明之一實 201248302 施例之折疊式投影板丨·^有用以接合外殼之接合裝置 5 〇。根據本發明之一實施例，接合裝置5 0係分別位於第一 支持装置14與第二支持裝置15上，且接合裝置50為磁 鐵w但本發明不以此為限，接合裝置50也可以是魔鬼氈、 扣壞或橡皮圈等元件，並且接合裝置5〇可以位於第一殼體 11與第二殼體12上。再者’接合襄置5〇可也不需要固定 在外殼1G上，例如：直制套環套住外殼1〇。 *月參考圖4’圖4為本發明之另一實施例之折疊式投影 板展開時之俯_。根據本發明之—實施例，本發明之折 杈〜板之第二殼體13a為一圓弧形殼體，而折疊式 才又衫板la巾其他各元件的功能與相對位置與折疊式投影 板1相同，將不再贅述，詳情請參考前述。 以下請一併參考圖5至圖7關於本發明之折疊式投影 板之另-實施例’其中圖5為此實施例之分解示意圖；圖 6為此實施例展開時之立體示意圖；冑7為此實施例折疊 時之立體示意圖。 如圖5所示’本發明之折疊式投影板&更包括兩加強 板6〇以及至少一伸縮裝i 40,兩加強板60係位於外殼1〇 與可撓性板30之間，其中可撓性板3G係分別透過兩加強 板60與第-殼體U以及第二殼體12連接。加強板的内 設有複數個容置區6卜其係用以容納至少一伸縮裝置， 而伸縮裝置4G為具有可彎折性之彈性材料。根據^發明之 一實施例，加強板60為壓克力板，且伸縮裝置4〇 可橫向放入容置區61中，且伸縮裝置40之數目為三個， 但本發明不以此為限。 201248302 由於伸縮裝置40具有可彎折性，可隨外彀 6)或f折（圓7)，利用伸縮裝置4〇由弯曲轉^開（圖 力’能帶動第一殼體與第二殼體12快速的達時的彈 度之展開狀態（如圖6所示 > 並且根據本'呈現18〇 例，當伸縮裝置4G為捲尺時，可·捲尺伸 1施 造特徵’能讓本發明之折疊式投影板lb穩定|立，、弧形構 重力作用而發生折疊式投影板lb後傾的形況發生。^會受 在思的是’捲尺只是伸縮敦置40之-較佳實施離樣，需 明不以此為限。 μ像，本發 需注意的是，上述僅為實施例，而非限制於實施例。 譬如此不脫離本發明基本架構者，皆應為本專利所主 權利範圍’而應以專利巾請範圍為準。 【圖式簡單說明】 圖1係本料之折料投影板之- 實施例之分解示意圖。 圖係本發明之折疊式投影板之一實施例展開時之俯視圖。 ®係本發明之折疊式投景多板之一實施例折疊時之俯視圖。 圖4係本發明之折疊式投影板之另 一實施例展開時之俯視 圖。 圖系本發明之折疊式投影板之再一實施例之分解示意圖。 圖6係本發明之折疊式投影板之再一實施例展開時之立體 杀意圖。 圖7係本發明之折疊式投影板之再一實施例折疊時之立體 禾意圖。 201248302 【主要元件符號說明】 折疊式投影板1、la、lb 第一殼體11 第三殼體13、13a 第一支持裝置14 接合裝置50 容置區61 可撓性板30 開口 1311 外殼10、10a 第二殼體12 容納空間131 第二支持裝置15 加強板60 投影布幕20 伸縮裝置40201248302 VI. Description of the Invention: [Technical Field] The present invention relates to a folding type projection board, and more particularly to a folding type projection board provided with a flexible board. [Prior Art] Conventional projection screens for presentations or projection images require labor for installation, whether they are pull-down or electric, and such projection screens are bulky and inconvenient to move the projection cloth. The position of the curtain is only suitable for fixed point use. A folding type projection board which has been disclosed in the prior art can carry the folding projection board, but the projection screen of the case is directly fixed on the board, and the projection screen cannot be bent, so the folding type folding type projection board The folding method needs to consider the size of the projection screen, so it still has a certain volume after folding, and cannot be further reduced. It is therefore necessary to provide a new folding projection board to improve the lack of prior art. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a folding projection panel provided with a flexible panel. To achieve the above object, a folding projection panel includes a housing, a projection screen, and a flexible panel. The outer casing includes a first casing, a second casing with a 201248302 and a third casing, wherein the third casing is located between the first casing and the second casing. The third housing includes an accommodating space, and the accommodating space includes an opening, and the first housing and the second housing are respectively foldable toward the opening. The projection screen is used to display the projected image, and the flexible board is bendable and connected to the screen and the housing respectively, and the flexible board is used to support the projection screen. In one embodiment of the invention, the flexible sheet is made of polymethyl methacrylate (PMMA). In another embodiment of the invention, the flexible panel is coupled to the first housing and the second housing via the two reinforcing sheets. The above and other objects, features and advantages of the present invention will become more apparent from the Detailed Description of Description Next, the following will be described with reference to Figs. 1 to 3 regarding the folding type projection plate of the present invention. Figure 1 is a schematic view of an embodiment of the folding type projection plate of the present invention. Figure 2 is a perspective view of the folding type projection plate of the present invention. FIG. 3 is a folding type of the present invention. - Embodiment Folding when folding 3 MH Ming's folding projection panel 1 includes, = jersey curtain 20 and flexible panel 3 〇. The outer casing 1 includes first and second: = 12 and a third casing 13, wherein the third casing ... ^ ^ is between the first casings 12. The third housing 13 includes a volume < a, and the valley space 131 includes an opening 1311, and the first housing 11 is folded toward the opening 1311 by the second and fourth V, respectively, thereby folding the projection board 1 of the present invention. There is an unfolded state (as shown in Figure 2) and a collapsed state (as shown in Figure 3). The projection screen 2 () is used to display the image, and the flexible board 30 is bendable and connected to the projection screen 2 and the casing 10, respectively, and the flexible board 3G is used to read the projection screen. . The flexible plate 30 of the present invention may be a soft backing plate, and more preferably, the surface is smooth and smooth, can be bent with the outer casing 10, and the expanded flexible plate 3 does not have a crease and is excellent after being unfolded. A flexible sheet having properties such as a silver lacquer or a reflective material that can be applied to the flexible sheet 3 (). According to an embodiment of the invention, the first housing u and the second housing are two plates of equal size, the third housing 13 is a 1; a font housing, and the ends of the u-shaped opening are respectively - The housing u is connected to the second housing 12. The flexible board 30 is connected to the projection screen 2, the first housing u, and the second housing 12 by means of adhesive, and the flexible board is made of polymethyl methacrylate (PMMA). The acrylic sheet is formed, but the invention is not limited thereto, and any flexible sheet made of plexiglass is suitable for use in the present invention. It should be noted here that the material of the outer casing 1G to which the present invention is applied may be cardboard, plastic plate or other plate, and the projection screen 2G may be (four) white (Maue), pearl (Beads) or particle coating ( Peads) and other material projection screens. As shown in FIG. 1 and FIG. 2, when the folding projection panel of the present invention is in an unfolded state, the outer casing 10 itself can be erected at 90 degrees, and the first casing 11 and the second casing 12 are respectively located in the third casing. The two sides of the 13 and the angle between the first housing 11 and the first housing 12 are substantially 18 degrees. At this time, the flexible board 30 is unfolded with the outer casing 10 to support the projection screen 2, whereby the projection screen 2 〇 can also be fully deployed to receive the projection light source, and the projected image is displayed on the projection cloth 201248302, 20. Furthermore, in order to allow the folding projection panel i of the present invention to stand up more stably when deployed, the housing 1 of one embodiment of the present invention further includes a first f device 14 and a second support device 15. The first support device 14 is connected to the first housing 11 (not contacting one end of the third housing 13), and the second/support device 15 is connected to the second housing 12 (not contacting one end of the third housing 13) 'This increases the force of the stable uprightness of the folding projection panel 1 during deployment. Alternatively, a silver lacquer or a reflective material may be applied to one side of the flexible panel 3 of the present invention in contact with the projection screen to improve the degree of projection. As shown in FIG. 2, if the first housing U and the second housing 12 of the folding type projection panel 1 of the present invention are in an unfolded state, they are folded in the direction toward the opening 1311 (as indicated by the dotted arrow in FIG. 2). In the direction of the present invention, the folding type projection panel 1 of the present invention can be brought into a collapsed state as shown in FIG. At this time, the outer casing 1 呈现 will exhibit a U-shaped bending, and the first casing 11 and the second casing 12 respectively form a U-shaped straight portion, and the third casing 13 is U-shaped bent. Part. When the outer casing 1 of the present invention is folded, the flexible plate 30 is also bent with the outer casing 10 folded, so that the flexible plate 30 and the projection screen 20 also exhibit a similar u-shaped bending, as shown in the figure. As shown in FIG. 3, the portion of the flexible board 3's and the projection screen 20 that is bent is accommodated in the accommodating space 131 of the third casing 13. According to an embodiment of the present invention, when the folding type projection board 1 of the present invention is in the folded state, the first supporting device 14 and the second supporting device 15 respectively receive the inner side of the U-shaped opening of the outer casing, that is, respectively The inside of the first housing 11 and the second housing 12 are received. It is desirable to have a fixed force path for reinforcing the folding projection panel 1 in a folded state. The folding projection panel of the embodiment of the present invention is used to engage the engagement means of the outer casing. According to an embodiment of the present invention, the engaging device 50 is located on the first supporting device 14 and the second supporting device 15, respectively, and the engaging device 50 is a magnet w, but the invention is not limited thereto, and the engaging device 50 may also be An element such as a devil felt, a buckle or a rubber band, and the engagement means 5A may be located on the first housing 11 and the second housing 12. Further, the engaging means 5 does not need to be fixed to the outer casing 1G, for example, a straight collar covers the outer casing 1 . *Month Referring to FIG. 4' FIG. 4 is a top view of the folding projection panel according to another embodiment of the present invention. According to the embodiment of the present invention, the second casing 13a of the folding-to-plate of the present invention is a circular arc-shaped casing, and the functions and relative positions and folding projections of the other components of the folding type Board 1 is the same and will not be described again. Please refer to the above for details. Please refer to FIG. 5 to FIG. 7 together with another embodiment of the folding projection board of the present invention. FIG. 5 is an exploded perspective view of the embodiment; FIG. 6 is a perspective view of the embodiment when the embodiment is unfolded; A perspective view of this embodiment when folded. As shown in FIG. 5, the folding projection board of the present invention further includes two reinforcing plates 6A and at least one telescopic device 40, and the two reinforcing plates 60 are located between the outer casing 1 and the flexible plate 30, wherein The flexible board 3G is connected to the first housing U and the second housing 12 via the two reinforcing plates 60, respectively. The reinforcing plate is provided with a plurality of accommodating portions 6 for accommodating at least one telescopic device, and the telescopic device 4G is a flexible material having bendability. According to an embodiment of the invention, the reinforcing plate 60 is an acrylic plate, and the telescopic device 4 can be laterally inserted into the accommodating area 61, and the number of the stretching device 40 is three, but the invention is not limited thereto. . 201248302 Since the telescopic device 40 is bendable, it can be folded with the outer cymbal 6) or f (circle 7), and can be rotated by bending by the telescopic device 4 (the force can drive the first housing and the second housing) 12 rapid state of deployment of the degree of elasticity (as shown in Fig. 6) and according to the present invention, when the telescopic device 4G is a tape measure, the tape can be stretched by 1 to make the feature Folding projection board lb stable | vertical, curved structure of gravity caused by the folding projection board lb back tilting situation. ^ will be thinking that 'the tape measure is only telescopic 40 - better implementation of the sample It should be noted that the above is only an embodiment, and is not limited to the embodiment. 譬 So without departing from the basic structure of the present invention, it should be the main right of the patent. The scope shall be based on the scope of the patented towel. [Simplified illustration of the drawings] Fig. 1 is an exploded view of the embodiment of the folding projection plate of the material. Fig. 1 is an embodiment of the folding projection plate of the present invention. Top view of the time. ® is one of the embodiments of the folding type multi-sided panel of the present invention when folded Fig. 4 is a plan view showing another embodiment of the folding type projection plate of the present invention. Fig. 6 is an exploded perspective view of another embodiment of the folding type projection plate of the present invention. Fig. 6 is a folding type projection plate of the present invention. Figure 7 is a perspective view of another embodiment of the folding projection plate of the present invention when folded. 201248302 [Description of main components] Folding projection panel 1, la, lb First housing 11 third housing 13, 13a first support device 14 engagement device 50 accommodating area 61 flexible plate 30 opening 1311 outer casing 10, 10a second housing 12 accommodating space 131 second support device 15 reinforcing plate 60 projection screen 20 telescopic device 40