200909990 九、發明說明： 【發明所屬之技術領域】 - 本發明係有關於一種原稿壓板開關裝置，尤其特別是一種涉 及適於應用在影印機、印刷機、傳真機、掃描機等具有原稿壓板 的辦公設備的原稿壓板開閉裝置，以及具有該原稿壓板的辦公設 備。 【先前技術】 在影印機、印刷機、傳真機、掃描器等辦公設備的設備主體 上，原稿壓板經由原稿壓板開關裝置可開閉地安裝在該設備主體 的上表面後部’該原賴板航設備域所具備的原稿台玻璃的 上表面。原稿壓板開關裝置是一種鉸鏈機構，其軸支撐原稿壓板 使原稿壓板可敝鏈轉動，從而能触原紐板緊貼在設備主 體上表面的原稿台玻璃上，並且能夠使該原稿台玻璃露出。 為了將原稿裝置在原稿台綱上’要打開原稿壓板(使原稿壓 板向離開雜台«財向（有_為打開方向）機），使原稿台 玻璃的上表面露出’在將原稿放置到該原稿台玻璃上之後，關閉 原稿壓板，用原稿壓板使原稿緊貼在原稿台玻璃上。 在這樣的原稿壓板開閉裝置中，公知有這樣的原稿壓板開閉 裝置’通過壓縮彈簧的作用力，可以感覺不到本來的重量而打開 原稿壓板(如參照專利文獻1)。該原稿壓板_裝置具有安裂在辦 A »又備的備主體上的安裝構件’經由鉸鏈銷可轉動地設置於該 女裝構件’並且安|於原稿壓板的支樓構件，及對支撐構件向打 開方向施力的壓縮彈簧。由於通過該壓縮彈簧並經由支撐_對 5 200909990 原稿壓板向打開方向轉動施力，因此，使原稿壓板向打開方 動時，通過壓输碟笼& 得 原稿壓板。知侧力’可减覺糾林的重量而打開 專利文獻1 :日本專利第3262457號 關於轉利文獻丨巾記載_稿壓板關裝置 ，，關閉方向轉動)時，最初為了抵抗壓縮彈菁 夕夕而要用力’而在中途由於壓縮彈簧對原稿壓板施力的 ^將要，原稿壓板的轉動力矩，因此，可以容易地_ ^壓板’但疋’特別載原稿壓板帶自動原稿傳送裝置而有重量的 速錢快，從__烈地 加大然置阻尼裝置等各種方法，但均造成製作成本 -種帶有· 2 行開閉操作時的操作感差，所以在尋求著 ，有她功能_稿壓板關裝置，科增加 士 構簡早，且又不影響開閉操作時的感覺。 不、、， 人^此f觀，㈣本案之發明 【發明内容Γ之相驗麵魏研歧k柯所在者。 —種上述之_ ’本翻之主要目的，係提供 良好的原操作感 裝構=:==:::= 200909990 在具有原稿壓板的辦公設備的設備主體側，上述支撐構件可轉動 地安裝於該安裝構件並支撐上述原稿壓板，前述滑塊可滑動地設 於該支撐構件及該安裝構件的任一方内，該凸輪構件設於該支撐 構件及該安裝構件的另一方，且其與上述滑塊滑動接觸，前述彈 性構件設置在·塊與上述支撐構件或安裝構件間，該彈性構件 使該滑塊壓力接觸於該凸輪構件，並控制前述原稿壓板的打開動 作，並且上述滑塊及上述凸輪構件的任一方設置一嵌合凹部，其 另-方设L凸部與前碱合凹做合，在上麟合凹部及 插入凸部的至少-方設置—轉動控制部，使該支撐構件相對於該 安裝構件轉糾’在轉動的巾途產生摩轉矩，以控制該原稿 壓板的開閉動作。 ' ° 根據本發明’在滑塊及凸輪構件的—錢置前贼合凹部， 在該滑塊及該凸輪構件的另一方設置與嵌合凹部嵌合的前述插入 凸部，而該嵌合凹部及插入凸部的至少一方設置前述轉動控制 部，使該捕構件相對於該安裝構件轉動時，在該轉動中途產生 摩擦轉矩，控碰板關_作，由独上結構，因形成在 該原觀板位於設備主體的上表面附近產生摩擦轉矩的轉動控制 部，從而不會擔喊碰·烈撞龍域。糾 成轉動控_也可贿_原觀板時畴 修 果是，可崎琳增加製作絲、結單 ^ 作感良好的原稿壓板開閉裝置。 碼力月匕及操 j本發明的原稿黯開閉裝置中，較佳的是：該後合 有一卡合槽部沿上述滑塊的滑動方向延伸形成狹缝狀，上述插1 200909990 卡=片係沿該滑塊的滑動方向延伸並突出，並且該 -卞口凸片的一部分的寬度係加寬 .:發明的原稿壓板開閉裝置中，較佳的是:上:::二:二 ==盼__方向延伸抛狹縫狀，且該^ 、a乃的寬度係減窄形成上述轉動控制部。 人另外’在本發明的原觀板開職置尹，較佳的是：上述嵌 δ凹料㈣合槽料該滑塊㈣財 =縫狀的剖面呈凹狀，使前述卡合槽部的底部突= ㈣;^轉ΐ控制部。另外，在本發明的原麵板開閉裝置中， 1乂佳=:别述嵌合凹部及上述插入凸部分別設置！個或2個以 :另外’在本發_原稿她關裝置巾，錄岐：上述滑 輯件分卿成為凸輪微，纽纽該支撐構件相對 =文裝構件轉動時，在這些安裝構件與支撐構件之間產生摩捧 轉矩’以使前述顧顯撕_設齡體以自娜止方式停止。 此外，在本發明_觀板_裝置巾，難岐 ^制部設置在上述原稿魏位於上述設備主體的上表面附近時 上述原板在相對於上述設備主體位於直立狀態附近產生摩 二轉矩，或者是前述轉_制躲置在上述原賴板位於上述設 主體的上表面附近時或上述原稿壓板在相對於上述設備主體位 =直立狀細近產生摩擦轉矩。另外，在本發明的原稿壓板開閉 ^置中較佳的疋.上述安裝構件具有在上述設備主體上表面安 :的-底板’域該底板的兩側部立起的兩侧板，上述支撐構件 Ί绞賴可轉動地安裝於該賴板，並且該凸輪構件安裝在 200909990 上述兩側板之間。 • _顧紐_裝置巾，較_是：前述安 =1L ’並且該腳部呈可上下移動地插人上述安裝孔中另Γ 狀，並閉裝置中，較佳的是:前述聊部形成為筒 構件：广，塊與朝一個方向對該滑塊滑動施力的彈性 !二1二明的原稿-板開職置中，較佳的是：上述 的二了—由端安裝一提升構件，前述提升構件與該支撐構件 靖該細糊，前述原稿壓 另外，在本發明的原觀板開閉裝置中，較佳的是·上述安 ==具有-轉動限制部’該轉動限制部之基部係在前述腳部的 w則’且該切構件料—限卿無_關部抵接。 祕=’目的’本發_具有原稿麼板的辦公設備 蛊植在於，具有上述本發明的原稿壓板開閉裝置。根據本發明， 二上胡樣’在滑塊及凸輪構件的—方設置嵌合凹部，其另 设置與嵌合凹《合的插人凸部，在嵌合凹部及插人凸部的至少 轉動控制部，在使支承構件相對於安裝構件轉動時，在 途產生摩擦轉矩，控制原稿遷板的開閉動作，因以上社 t y以得到不增加製作成本、結構簡單、發_動功能及猶 感也良好的原稿壓板開閉裝置。 根據如上說明的本發明原稿壓板開閉袋置及具有原稿壓板的 辦公設備’在滑塊及凸輪構件的—方設魏合卿，其另一方設 200909990 置與後合崎雜人凸部，並練合料人崎的至少一方 2轉動控制部，在使支承構件相對於安裝構件轉動時，在該轉 動中途產生摩擦賊，控健板關_作，_上結構， 可以得到不增加成本、結構簡單、發揎 的原稿壓板·裝置。 纟揮制動功歧操作感也良好 〜為I使f«委纽更進—步_本剌特徵及技術内 二^參閱以下有關本發明之詳細說明與附圖，然而所附圖示僅 八 > 考與說明用，並非用來對本發明加以限制。 【實施方式】 ，發明之上述目的及其結構與魏上的特性，將依據所附圖 式之較佳實施例予以說明。 在以下的綱巾，賴實施於帶具有腳部的提升功能且腳部 内未设有滑塊及彈性裝置的結構_稿壓板職裝置的情況進行 說明，而本發明不妨可以實施於具有後述的以下實施方式中所述 結構以外之結構的原稿壓板開閉裝置。 本發明係-種原稿壓板開閉裝置及具有原稿壓板的辦公設 備。參照第1圖至第3圖係本發明的原稿壓板_裝置的一個示 例的圖。續復參閱第1、2、3所示，本發明之原稿壓板開閉裝置 將原稿壓板12可開閉地安裝在辦公設備1〇的設備主體n的後端 部。作為辦公設備1Q，沒有特舰定，例如影印機、印刷機、傳 -真機、掃描H等，特糊舉前述料機作紐絲例，但沒有特 -別限定地進行說明。 本發明的雜驗開職置丨如下所述的裝置，其設有：安 200909990 裝在具有原稿屋板12的辦公 10的設備主體11側的-安裝構 -件2^-较_ 16為軸射轉祕絲在絲齡2上，並且 .支承:述原稿魔板12的一支承構件3 ;可滑動地内設在支承構件 3及安裝構件2的任—方，例如内設在支承構件3中的滑塊$ ;與 滑塊5滑動接觸，並設置在支承構件3及安裝構件2的另一方， 例如汉於钱構件2的凸輪構件6 ;以及-彈性構件Η係設置在 5亥滑塊5與支承構件3之間’使該滑塊5壓力接觸在該凸輪構件6 上，控制該原稿壓板12的打開動作，該原稿屢板開閉褒置j形成 使原稿壓板12轉動並利用原稿壓板12覆蓋設備主體_上表面 的關閉狀態、以及使該設備主體u的上表面露㈣打開狀態。 本發明的原稿壓板開職置丨的特徵在於，在該滑塊5及凸 輪構件6的-方’例如在凸輪構件6設置—插人凸部8，在該滑塊 5及凸輪構件6的另—方’例如在滑塊5設置與前述插入凸部8 嵌合的一嵌合凹部7,在嵌合凹部7及插入凸部8的至少一方設置 二轉動控制部9 ’且在使支承構件3相對於安裝構件2轉動時，令 該轉動中途產生雜轉矩’控悔碰板12的開閉動作。 剞述设備主體11的上表面設有原稿台玻璃（圖中未示），通 過》亥原稿壓板12使原稿緊貼在該原稿台玻璃上，並且利用原稿壓 板12遮蔽原稿台玻璃。在設備主體u的上表面的後端部附近的 兩處，分別設有沿上下方向（有時稱為高度方向）延伸且呈凹狀 的一女裝孔13，則述安裝孔13的橫截面形成為矩形；並且在該安 裝孔13的後表面設有沿咼度方向延伸的一移動容許凹部14，前述 移動容許凹部14的高度方向上的長度決定原稿壓板開閉裝置工在 11 200909990 高度方向上的移動範圍，其沒有特別限定，且可任意設定。 接著請一併參閱第丨圖至第4圖所示，該安裝構件2具有一 基部2卜從前述基部21的下表面向下方延伸的腳部&，與对 在該基部21上表面的-轉動部μ。上述安裝構件2係由合成樹脂 形成，但並不侷限於此，可以由其他材料形成。 曰 該基部21係形成為略呈矩形平板狀。在該基部21的下表面 向下方延伸設置-腳部25，前述腳部25的截面形成為小於基部 21的略矩形’該腳部25插人設備主體u的安裝孔13，並將^稿 壓板開職置1安裝於設備主體U。而上述腳部25的4個面(前 表面、後表面、兩侧面）的上部’設置有多個引導片25a，該腳= 25的後表面的下部，設置有下表面傾斜呈略矩形的一凸部邡。當 該腳部25插入前述安裝孔13時’則該凸部26與移動容許凹部& 卡合’且前述凸部26在與移動容許凹部14的上卿抵接前的範 圍内’該支承安裝構件2的腳部25即原稿壓板開閉裝置丨並使其 可在高度方向上移動。另者，上述腳部25的前表面的下方傾斜並 形成為一錐形面25b，若使凸部26與移動容許凹部14的上端部抵 接或接近的狀態下使腳部25倒向後表面側，則錐形面25b與安裝 孔13的前面壁進行面接觸或接近安裝孔13的前面壁，凸部沈脫 離移動容許凹部14，可以將腳部25由安裝孔13拔出。 上述轉動部22形成平面方向的截面小於基部21的略矩形， 前述矩形係為略長方體狀。在該轉動部22的上方稍後方侧，設置 有貫通兩侧面的一軸孔22a。上述鉸鏈銷16經由一轴承28插入該 軸孔22a。從轉動部22的前表面到上表面形成為在滑塊5被按壓 12 200909990 進行滑動接觸的凸輪構件6。該凸輪構件6的前表面和上 兩側面偏陳成彎曲狀；另外，轉動部22的兩侧面側於該基部21 带成72pi表面（上端）形成為前表面較高的2段結構，前述 4^2 U冓的壁部傾斜並形成_轉動限制部μ。 以由盆H構件3係由合成樹脂形成，但並不侷限於此，也可 圖所示，該支承構件3 承:：：兩側板3b及一下板3c形成矩形筒體狀。該支 承編的另-=Γ蝴—雜齡綱3d，且該支 的後端側二安刀別设置有通㈣釘等安裝在原稿壓板12 轉==;=r3b__形成為-的兩側部間的長度 構件2的轉動部22 有供該鉸鏈们_的,=_：在該_ 31上設置 孔32與該安妒播彼 月述轉動片31的軸插通 32 16 轉動地連結在該钱構件2上^構件3以鉸鏈銷16為轴可 及⑷)從而__23抵接（參照第2圖㈦ 動範圍的—限制片31 .端部形成為限制原稿壓板12的轉 板12轉動時f發明中打開方向是指在使原稿壓 中關閉方向是細=台麵_的方向。本發明 開方向相反的方向’是指在使原稿壓板12轉 200909990 動時原稿屢板12接近原稿台玻璃的方向。 該彈性構件17對原稿顧12向打 .啟方向施力。彈性構件17沒有特別限° /力，即向開 前述_彈簧17a被收納在該支承構件3Ιύ為Γ壓縮彈簧W， 性構件支承部3d與凸輪構件6之間，該_彈=生=在該彈 承於彈性構件絲部3d，並且上顧轉簧 部支 使滑塊5壓力接觸於凸輪構件6，對原稿壓板i2向，、==200909990 IX. INSTRUCTIONS: [Technical field of the invention] - The present invention relates to an original platen switch device, and more particularly to a method suitable for use in a photocopying machine, a printing machine, a facsimile machine, a scanner, etc. having an original platen An original platen opening and closing device for office equipment, and an office equipment having the original platen. [Prior Art] On the main body of an office equipment such as a photocopier, a printing machine, a facsimile machine, a scanner, etc., the original platen is openably and closably mounted on the upper surface of the upper surface of the main body of the apparatus via the original platen switch device. The upper surface of the original glass that the field has. The original platen switch device is a hinge mechanism whose shaft supports the original platen so that the original platen can be rotated, so that the original plate can be brought into close contact with the original platen glass on the upper surface of the main body of the apparatus, and the original plate glass can be exposed. In order to place the original on the original table, 'to open the original platen (to make the original platen away from the miscellaneous table (with _ is the opening direction)), expose the upper surface of the original glass to 'place the original After the original glass is placed, close the original platen and use the original platen to attach the original to the original glass. In the original platen opening and closing device, it is known that the original platen opening and closing device s can open the original platen by the urging force of the compression spring and can feel the original weight (see Patent Document 1). The original platen_device has a mounting member 'which is rotatably disposed on the main body of the A», and is rotatably disposed on the wearing member via the hinge pin, and the supporting member of the original pressing plate, and the pair of supporting members A compression spring that applies a force to the opening direction. Since the pressing spring is biased in the opening direction by the support spring _ pair 5 200909990, when the original pressing plate is opened, the original platen is pressed by the disc cage & Knowing the side force' can reduce the weight of the forest and open the patent document 1: Japanese Patent No. 3262457 on the transfer of documents, the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ In the middle of the process, the pressing force of the original platen is applied to the original platen by the compression spring, so that the pressing force of the original platen can be easily made, but the original platen can be easily loaded with the automatic original conveying device and has a weight. The quick money is fast, and various methods such as dampering the damper are added, but both of them cause the production cost--the operation feeling with the 2 lines of opening and closing operation is poor, so I am seeking to have her function _ manuscript plate The device is closed, and the department is simple and early, and does not affect the feeling of opening and closing operations. No,,, people ^ this view, (four) the invention of the case [The content of the invention is the face of Wei Yanqi k Ke. - The above-mentioned _ 'The main purpose of this doubling is to provide a good original operational sensation =:==:::= 200909990 On the side of the main body of the office equipment with the original platen, the above-mentioned support member is rotatably mounted on The mounting member supports the original platen, and the slider is slidably disposed in one of the support member and the mounting member, the cam member is disposed on the other side of the support member and the mounting member, and the sliding portion is The block is in sliding contact, the elastic member is disposed between the block and the support member or the mounting member, the elastic member presses the slider into contact with the cam member, and controls an opening operation of the original platen, and the slider and the cam One of the members is provided with a fitting recess, and the other side of the member is provided with an L-shaped convex portion and a front alkali-concave recessed portion, and at least one side of the upper-side recessed portion and the insertion convex portion is provided with a rotation control portion, so that the supporting member is opposite The mounting member is rotated and corrected to generate a torque on the rotating towel to control the opening and closing operation of the original platen. According to the present invention, in the slider and the cam member, the insertion recess is fitted to the fitting recess, and the fitting recess is provided in the other side of the slider and the cam member. At least one of the insertion convex portions is provided with the rotation control portion, and when the trap member is rotated with respect to the attachment member, a friction torque is generated in the middle of the rotation, and the control panel is closed. The original plate is located at a rotation control portion that generates a friction torque near the upper surface of the apparatus main body, so that it does not scream and hit the dragon. Correction of the rotation control _ can also bribe _ original view of the board of time domain modification, Ke Qilin increased the production of silk, statement ^ good sense of the original platen opening and closing device. In the original document opening and closing device of the present invention, it is preferable that an engaging groove portion is formed to extend in a sliding direction of the slider to form a slit shape, and the plug 1 200909990 card = film system Extending and protruding along the sliding direction of the slider, and the width of a portion of the --portion tab is widened. In the original document plate opening and closing device of the invention, it is preferable that:::: two: two == The __ direction extends into a slit shape, and the width of the ^ and a is narrowed to form the rotation control portion. In addition, in the original plate of the present invention, it is preferred that the above-mentioned embedded δ-concave (four) grooved material has a concave cross-section of the slider (four) and the slit-like section, so that the aforementioned engaging groove portion Bottom protrusion = (four); ^ turn to the control department. Further, in the original panel opening and closing device of the present invention, it is preferable that the fitting recess and the inserting projection are separately provided! Or 2: to 'in the original hair _ original her off the device towel, recorded 岐: the above-mentioned sliding parts become the cam micro, the new support member relative to the text-mounted member when rotating, in these mounting members and support A frictional torque is generated between the members to stop the aforesaid body. Further, in the present invention, the hard disk is provided in a state in which the original plate is located in the vicinity of the upper surface of the apparatus main body, and the original plate is generated in the vicinity of the upright state with respect to the apparatus main body, or When the above-mentioned original plate is placed in the vicinity of the upper surface of the above-mentioned main body, or the original platen is in a state of being close to the apparatus body position, the frictional torque is generated. Further, in the opening and closing of the original platen of the present invention, the mounting member has two side plates which are erected on both sides of the bottom plate of the upper surface of the apparatus main body, and the support member The shackle is rotatably mounted to the slab, and the cam member is mounted between the two side plates of the above. • _Gu New_ device towel, _ is: the above safety = 1L 'and the foot is inserted into the mounting hole in a movable shape, and is closed in the device, preferably: the aforementioned chat part is formed For the tubular member: wide, block and elastic force to slide the slider in one direction! In the original-board open position of the two-two-two, it is preferable that the above two--a lifting member is installed by the end In the original plate opening and closing device of the present invention, it is preferable that the lifting member and the supporting member are in a fine state, and in the original plate opening and closing device of the present invention, the base portion of the rotation restricting portion is The w in the foot portion is 'and the cutting member material-limited to the no-closed portion.密 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 According to the present invention, the Ershanghu sample is provided with a fitting recess in the side of the slider and the cam member, and is additionally provided with the fitting recess, the engaging projection, and at least the rotation of the fitting recess and the insertion projection. When the control unit rotates the support member with respect to the attachment member, frictional torque is generated in the middle of the control member, and the opening and closing operation of the original sheet is controlled, and the above-mentioned business can be obtained without increasing the manufacturing cost, the structure is simple, the function of the hair is moving, and the sense of ecstasy is also Good original platen opening and closing device. According to the present invention, the original platen opening and closing pocket and the office equipment having the original platen are disposed in the slider and the cam member, and the other side is set to 200009990, and the rear Kawasaki miscellaneous portion is placed and the person is trained. At least one of the rotation control portions of the sagas, when the support member is rotated relative to the attachment member, generates a friction thief in the middle of the rotation, and the control panel is closed, and the structure is simple, and the structure is simple and unobtrusive. Original platen and device.操作 制动 制动 功 操作 操作 操作 操作 操作 操作 操作 操作 制动 制动 制动 制动 制动 操作 操作 操作 操作 操作 操作 操作 操作 操作 操作 操作 操作 操作 操作 操作 操作 操作 操作 操作 操作 操作 操作 操作 操作 操作 操作 操作 参阅 参阅 参阅 参阅 参阅The test and description are not intended to limit the invention. [Embodiment] The above object of the invention, its structure and its characteristics will be explained in accordance with a preferred embodiment of the drawings. The following outlines are described in the case where the structure has a lifting function with a leg and the slider and the elastic device are not provided in the leg. The present invention may be implemented as follows. An original platen opening and closing device having a structure other than the structure described in the embodiment. The present invention relates to an original platen opening and closing device and an office device having an original platen. Fig. 1 to Fig. 3 are views showing an example of the original platen_device of the present invention. Referring to the first, second, and third embodiments, the original platen opening and closing device of the present invention is attached to the rear end portion of the apparatus main body n of the office equipment 1 in an openable and closable manner. As the office equipment 1Q, there is no special ship, for example, a photocopier, a printing machine, a transmission machine, a scanning machine H, etc., and the above-mentioned material machine is used as a wire example, but it is not particularly limited. The apparatus of the present invention is equipped with a device as follows, which is provided with an installation of a structure of a device body 2 of an office 10 having a manufactory house 12 The projecting filament is on the wire age 2, and supports: a support member 3 of the original magic board 12; slidably provided in any of the support member 3 and the mounting member 2, for example, disposed in the support member 3 Slider $; sliding contact with the slider 5 and disposed on the other side of the support member 3 and the mounting member 2, such as the cam member 6 of the money member 2; and - the elastic member is disposed at the 5th slider 5 And the support member 3 is brought into pressure contact with the slider member 5 on the cam member 6, and the opening operation of the original platen 12 is controlled, and the original document opening and closing device j is formed to rotate the original platen 12 and covered with the original platen 12. The closed state of the upper surface of the apparatus body _ and the upper surface of the apparatus body u are exposed (4). The original platen opening of the present invention is characterized in that the slider 5 and the cam member 6 are provided, for example, in the cam member 6, and the male portion 8 is inserted, and the slider 5 and the cam member 6 are additionally provided. For example, a fitting recess 7 fitted to the insertion projection 8 is provided in the slider 5, and two rotation control portions 9' are provided on at least one of the fitting recess 7 and the insertion projection 8, and the support member 3 is provided. When the mounting member 2 is rotated, the miscible torque is generated in the middle of the rotation to control the opening and closing operation of the repentance panel 12. The upper surface of the apparatus main body 11 is provided with a document glass (not shown), and the original is pressed against the original glass by the original original pressing plate 12, and the original glass is shielded by the original pressing plate 12. At two places near the rear end portion of the upper surface of the apparatus main body u, a women's hole 13 extending in the up and down direction (sometimes referred to as a height direction) and having a concave shape is respectively provided, and the cross section of the mounting hole 13 is described. Formed in a rectangular shape; and a rear surface of the mounting hole 13 is provided with a movement permitting recess 14 extending in the direction of the twist, the length of the movement permitting recess 14 in the height direction determines the height of the original platen opening and closing device in the direction of 11 200909990 The range of movement is not particularly limited and can be arbitrarily set. Next, as shown in the fourth to fourth figures, the mounting member 2 has a base portion 2, a foot portion that extends downward from the lower surface of the base portion 21, and a pair of surfaces on the upper surface of the base portion 21. Rotating portion μ. The mounting member 2 is formed of a synthetic resin, but is not limited thereto and may be formed of other materials.曰 The base portion 21 is formed in a substantially rectangular flat shape. A leg portion 25 is formed extending downward from the lower surface of the base portion 21, and the leg portion 25 is formed in a section smaller than a slightly rectangular portion of the base portion 21, the leg portion 25 is inserted into the mounting hole 13 of the apparatus main body u, and the platen is pressed. The opening position 1 is installed on the main body U of the device. The upper portion of the four faces (front surface, rear surface, and both sides) of the leg portion 25 is provided with a plurality of guide pieces 25a, and the lower portion of the rear surface of the leg=25 is provided with a slightly rectangular lower surface. The convex part is 邡. When the leg portion 25 is inserted into the mounting hole 13, 'the convex portion 26 is engaged with the movement permitting recess & and the convex portion 26 is in the range before the upper portion of the movement permitting recess 14 abuts. The leg portion 25 of the member 2 is the original platen opening and closing device 丨 and is movable in the height direction. In addition, the front surface of the leg portion 25 is inclined downward and formed into a tapered surface 25b. When the convex portion 26 abuts or approaches the upper end portion of the movement permitting concave portion 14, the leg portion 25 is reversed to the rear surface side. Then, the tapered surface 25b is in surface contact with the front wall of the mounting hole 13 or close to the front wall of the mounting hole 13, and the convex portion is released from the movement permitting recess 14, and the leg portion 25 can be pulled out by the mounting hole 13. The rotating portion 22 has a slightly smaller cross section in the planar direction than the base portion 21, and the rectangular shape has a substantially rectangular parallelepiped shape. On the rear side of the rotating portion 22, a shaft hole 22a penetrating both side faces is provided. The hinge pin 16 is inserted into the shaft hole 22a via a bearing 28. The cam member 6 that is in sliding contact with the slider 5 is pressed 12 200909990 is formed from the front surface to the upper surface of the rotating portion 22. The front surface and the upper side surfaces of the cam member 6 are curved in a curved shape. In addition, the two side surfaces of the rotating portion 22 are formed on the base portion 21 to have a 72 pi surface (upper end) formed into a two-stage structure having a high front surface. ^2 The wall of the U冓 is inclined and forms a rotation restricting portion μ. The pot H member 3 is formed of a synthetic resin. However, the present invention is not limited thereto. Alternatively, the support member 3 may be formed such that the side plates 3b and the lower plates 3c are formed in a rectangular tubular shape. The support is edited by another -= Γ — - 杂 纲 3 3d, and the rear end side of the branch is provided with a through (four) nail or the like mounted on both sides of the original platen 12 ==; = r3b__ is formed as - The rotating portion 22 of the inter-section length member 2 is provided with the hinges, =_: the hole 32 is provided in the _ 31, and the shaft insertion 32 16 of the rotating piece 31 is rotatably coupled to the ampere The member 3 of the money member 2 is hinged (4) with the hinge pin 16 as an axis so that the __23 abuts (refer to the movement range of the second figure (7) - the restriction piece 31. The end portion is formed to restrict the rotation of the rotary plate 12 of the original platen 12. In the invention, the opening direction means that the closing direction of the original pressing is the direction of the fine = countertop _. The direction of the opposite direction of the opening of the invention means that the original sheet 12 is close to the original table when the original pressing plate 12 is rotated by 200009990. The direction of the glass. The elastic member 17 urges the original document 12 in the opening and closing direction. The elastic member 17 is not particularly limited to a force, that is, the spring 17a is accommodated in the support member 3 as a compression spring W, Between the structural member supporting portion 3d and the cam member 6, the _elastic = raw = in the elastic member wire portion 3d, and the spring 5 support the slider 6 into pressure contact with the cam member, to the document platen i2 ,, ==
圖式例中是1個。 J 上述滑塊5係由合雜脂形成，並沒有特別限定，也可以由 如參閱第3圖及第5圖所示，該滑塊5被收納在 ==並封閉該支承構件3，又，前述滑塊5係形成為矩 形的有額體狀，且其内呈圓形形成為—彈簧收納部％，在該彈 簧收納部5b内收納有壓縮彈簧％的另一端部，該滑塊5的底部 即抵接部5a與術料6紐。在彳_ ^妙有熱輪構件6 滑動接觸的滑動部5卜該凸輪構件6的形狀較佳係形成為：在使 原稿壓板以鉸鏈鎖16為軸向打開方向轉動時，原稿壓板12漸 漸立起原稿壓板12因自重倒向關閉方向的力變弱，隨著該動作， 壓縮彈簀17a拉伸’其作用力也變弱，原稿顧12不跳起。 前《合凹部7及插入凸部8是相互嵌合的，且該巍合凹部？ 可設置在凸輪構件6及滑塊5這兩者，而較佳係設置於凸輪構件6 及滑塊5的任-方’例如設置於滑塊5。該齡凹部7是在滑塊5 14 200909990 的抵接部53的纽巾央料其綠柏 到下魏滑動部51)的部位形成狹縫狀的卡=其= 合槽部71紐形成為讀_。 听。抑71。針 及触合畴7相_，可設胁凸輪構件6 =Γ 較佳係設置於凸輪構件6及滑塊5的任-方， Η〜又置於凸輪構件6。該插入凸部8例如是 延伸並突出的-插入凸月81，前、十、奸 口4私月動方向 沾士劫^Γ 插人凸片81例如在凸輪構件6 =的設置於從其上表面到前表面下部的部位。該插入凸 片81的寬度以比卡合槽部71的寬度要窄的尺寸形成。 =動控制部9用於在使支轉件3相對於安裝構件2轉動 時，在,、轉動中途產生摩擦轉矩，控制原稿壓板12的轉動速度， 且前这__部9可設置練合畴7及插人凸部δ這兩者， 而較佳係設置贿合凹部7及插人凸部8的任—方，例如設置於 凸Ρ8(插入凸片81)。該轉動控制部9只要能控制原稿壓板 12的轉動速度’則沒有特別限定，例如可加寬插入凸片8ι的寬度 來形成。該轉動控制部9的寬度較佳係為與卡合槽部71的寬度大 約相同或稍寬的尺寸形成。該轉動控制部9與插入凸片81的交界 處可形成階梯狀，而較佳係使其傾斜形成。即，較佳係為逐漸加 寬插入凸片81的寬度來形成前述轉動控制部9，該轉動控制部9 的位置任意決定，例如，形成於凸輪構件6絲面的高度方向上 的大致中央部的部位的某一處’以使在原稿壓板12位於設備主體 Η附近產生摩擦轉矩。 以下對本發明的原稿壓板開閉裝置1及辦公設備10的作用進 15 200909990 行說明。 該原稿壓板12在設備主體u未使㈣狀態下，如圖丨所示， 糾在設備域11 _稿台麵上，原稿台朗被賴。此時， 卡合槽部與插入凸片81相卡合。為將原稿放置到原稿台玻璃 上’百先，握住與安裝有原稿顯開職置丨的部位相反側的原 稿壓板12的端部或其附近等，將原稿壓板12向上方提升。即， 使原稿壓板12贿_ 16為_動，並使原稿台玻璃的上表面 露出於外部’使原稿壓板12位於打開位置。此時，如圖2(b)、（C) 所示，由於該支承構件3的限制部33與安裝構件2的轉動限制部 23抵接’所以原稿壓板12可位於最大打·置而不會過度打開。 另外’在使原稿壓板12轉動時，原稿壓板12關縮彈簧…的 作用力而被施力向打開方向轉動，可以感覺不到重量而向打開方 向轉動:另外’卡合槽部71與插入凸片81嵌合併卡合在一起， 在撒4下’支承構件3 (原稿壓板12)相對於钱構件2轉動。 在露出_稿台玻璃面上放稿後，將已提升的原稿壓板 2放下來。即，使原稿壓板12向與原稿台_接觸_閉方向以 鉸鏈銷16為_動並向τ方義，使其成_㈣。此時，最初 為了抵抗壓縮彈簧17a的作用力，多少需要用力，而通過在中途 由於壓縮彈簧17晴原稿壓板12施力的作用力增大了原稿壓板12 的力矩’所以可以容易地轉動原稿壓板12。並且，原稿壓板a 進一步轉動’則原稿壓板12的轉動速度變快，而轉動控制部9的 兩側面與卡合槽部71的_壁部滑動_，產生摩擦轉矩，原稿 壓板12的轉動速度降低。其結果是，不會擔心原健板12猛烈 16 200909990 ^ °麵。在該原稿台玻璃上放置的原稿如是薄物，例如 廣钱丄;1 氏貝,]原稿壓板12以錢鍵鎖16為轴只進行轉動，通過 =卜，2使原稿不會從原稿台玻璃上浮起，而會緊貼在原稿台 從而可將原稿良好地進行複印等。 稿如書那樣厚度較厚的情況下’在將原稿放置到原稿台 ^使原稿壓板12向關方向轉動，則在原稿壓板12呈 關閉狀態之前’即，原稿壓板12與·台麵貼緊之前，原稿壓 板^與原稿的端部接觸，在與上述原稿的端部相反側的端部和原 柄壓板12之間形成空間。即，原稿壓板12處於原稿壓板開閉裝 =1相反-側的端部浮起的狀態。將該浮起—側的原稿壓板12向 。又備主體11繼壓或目原麵板12的自重，腳部25向從安裝孔 13拔出的方向（上方）移動，原稿壓板開閉裝置1向上方移動， 並且原稿壓板12崎鏈銷16為軸轉動。即，自動調節該原稿壓 板開閉裝L的高度，原稿壓板12移動，以覆蓋原稿的上部。例 如在》亥原稿的上部是平坦面的情況下，原稿壓板η與該上部進 行面接觸。其結果是’厚度較厚的原稿穩定地緊貼在原稿台玻璃 上。由此，>與原稿的厚度無關，原稿壓板12都可以使原稿穩定地 緊貼在原稿台_上，献可錄力防止外絲人設備主體的内 部阻礙曝光。 這樣，由於使原稿壓板12向_方_動並接近原稿台玻 璃，則轉動控制部9的兩側面與卡合槽部71 _麵部滑動接 觸’產生摩擦轉矩’因此原稿壓板12的轉動速度降低，原麵板 12不會猛烈撞到原稿台玻璃。另外，在從原稿壓板12關閉的狀態 17 200909990 使原稿壓板12向打開方向轉動時，在用手稍提升原稿壓板12的 狀態下，即使手在某一刹那放開原稿壓板12，由於轉動控制部9 的兩側面與卡合槽部71的兩側壁部滑動接觸而產生摩擦轉矩，所 以不用擔心原稿壓板12在放手的一刹那猛烈撞到原稿台玻璃。 另外，因轉動控制部9是逐漸加寬插入凸片81的寬度而形成 的，所以不會在原稿壓板12轉動中途突然產生摩擦轉矩，由於摩 擦轉矩漸漸變大，所以原稿壓板12開閉操作時的操作感良好。 因此，本發明的原稿壓板開閉裝置1及辦公設備1〇結構簡 單、不增加製作成本、廉價地發揮制動功能及並且也可使操作感 良好，可放心地使用辦公設備1〇。 另者’在上述實施方式巾，將轉動控卿9形成於插入凸部8 (插入凸片81 )，但並不侷限於此，如圖6所示，可設置於喪合凹 7 (卡5槽部72)。§亥第2實施方式中的轉動控制部gi較佳係 為以逐漸減窄卡合卿72购的寬度形成，例如以與插人凸片犯 (參照圖7)的寬度大致相同或只稍窄的尺寸形成。再者，該插入 凸片82如圖7所示，开》成為大致相同的寬度。 由此’與將轉動控制部91形成於插入凸部8 (插入凸片 的情況相同’在使支承構件3械於安裝構件2轉_，在其轉 動的:途產生摩擦轉矩，可㈣職壓板12的關動作，從而結 構簡單’不增加製作成本，廉價地發揮制動功能，並且也可使操 作感良好。另者’雖然圖中未表示，但散合凹部（卡合槽部）的 綠除圖式财卜’射向設有嵌合凹部的凸輪構件6、滑塊5的深 度方向形雜狀，總之，伴隨原紐㈣開_作，在插入凸部 18 200909990 (插入凸片）與嵌合凹部（卡合槽部）之間能產生制動作用就可 以了。 另外，轉動控制部9設置在插入凸片81的某一處，但並不侷 限於此，也可以設置在兩處以上。在該第3實施方式中，例如， 如圖8所示，可將轉動控制部9設置在兩處。由此，在原稿壓板 12的轉動中途的兩處產生摩擦轉矩，可控制原稿壓板12的開閉動 作0 另外，設置了一組嵌合凹部7及插入凸部8，但並不侷限於此， 也可设置2組以上。在該第4實施方式中，例如，如圖9所示， 在凸輪構件6設置2個具有轉動控制部9的插入凸片81，並且， 如圖10所示，可在與該插入凸片81相對的滑塊5的兩處設置嵌 合凹部7 (卡合槽部71)。纟此，使支承構件3相對於安裝構件2 轉動時’在該轉動巾途通過2組嵌合凹部7和插人凸部8產生摩 擦轉矩’可確實地控制原稿壓板12的開閉動作，從而結翻單， 不增加製作成本，可廉價地發揮制動功能，並也可使操作感良好。 另外，騎通部25將顧難_健1钱在設備主 體11的情況進行了說明’但並不侷限於此。在該第5實施方式中， 例如，如圖11所示，安裝構件⑽T主要由可裝拆地安裝在設備 主體的底板121、從底板121的_端部沿分別與底板121正交的 方向（也包含大致正交的方向。）延伸（立起）並彼此相對的兩 ^ ^ '^置在_板122間的凸輪構件1〇6構成。另外，在 此情況下，也可以具有提升構件。 即，凸輪構件106設有插入凸部8 (插入凸片81 )，該插入凸 19 200909990 部8具有轉動控制部9，並且經由一安裝鎖ιΐ5設置在兩侧板i22 以貫通兩侧板122及凸輪構件廳的方式設置鉸鏈銷ιΐ6。在 :裝構件102上以鉸鏈銷116 $轴可轉動地安裝奴承構件⑽。 在該支承構件動設有2崎塊，即第⑽及與上述滑 m相同結構的具有嵌合凹部7 (卡合槽部71)的第2滑塊 12糾^第1 α塊雇及第2滑塊1G5之間收納有對原稿壓板 的#=機^力即向開財向施力的作為雜構件117 _。提升構件1〇4支承在支承構件103上，該提升 支承構件_合’並且可在絲構件⑽的自由端 Q提升構件1〇4安裝在原稿壓板12上。 抵接目1〇4 °又有工作銷119，若第1滑塊108與該工作銷119 璃原稿的厚度测，可以使原稿穩定崎貼在原稿台玻 樣構Μ極力防止外光侵人設触體的内部賊曝光，這 i ti構簡單，不增加製作成本，廉價地發揮制動功 月匕，並且使操作感也良好。 實施^Γ部形成筒體狀，可在該腳部内設置滑塊。在該第6 突出即’如圖12所示’腳部挪從安裝構件皿向下方 被==部205係由合成樹脂等形成為下端部(底部) 納有形之筒體狀，即有底筒體狀。在該腳部205内收 滑塊2〇ί古^_縮_ 206°在該腳部205内可滑動地設有 件咖上^ Γ件203以狡鍵銷216為轴可轉動地連結在安裝構 與滑物1ϋ=Γ輪構件2G7，該凸麵207 力接觸。在腳部205與滑塊綱之間設置加固框體 20 200909990 209 〇 204 St 口凹一的卡口槽』211可没置於凸輪構件207及滑塊 • ^ &兩者’但較佳係設置於凸輪構件2〇?及滑塊綱一 方，例如設置於滑塊204。作為插入凸部的插 凸輪構件2〇7及滑謂這兩者，但較佳係設置於凸輪 2二：的插任另一方，例如設置於凸輪構物。轉動控制部 製作成i #广凸片212。讀構成也可實現結構簡單，不增加 1乍成本，廉仏地發揮制動功能，並且使操作感也良好。 另外，可將轉動控制部9設置在嵌合凹部7 (卡合 =底部:第7實施方式中的轉動控制部3〇ι，如圖η及圖Μ 突出並形成為曲面狀。另外，可將卡合二 ====:==向 :上形成截面為凹狀的狹縫狀。插入凸部3〇3，如圖j:的 =丄從滑塊312的滑動部314突出。該插入凸部的寬度以 比卡δ槽部302寬度要窄的疋+ γ, 入凸邻咖稍窄的尺寸而形成。該插 向的表面優選形成為曲面狀。該插入凸部· ⑽峨娜細_。蝴，轉矩 於為__輪形狀··在使支承構件3相對 、、 時在這些安裳構件305及支承構件3之間產 200909990 生摩擦轉矩，如圖1所示使原健板12相對於設備主體n以自 由停止方式停止。凸輪構件311例如上表面、前表面及這些角部 形成為曲面狀，並且滑動部314表面形成為曲面狀。即，凸輪構 ，3U及滑塊犯的滑動部314的形狀較佳形成為：當使原稿^ 板12以叙鏈銷！6為轴向打開方向轉動時，則原稿顧12漸漸立 起，原稿塵板12因自重倒向關閉方向的力變弱，隨著該動作，塵 縮彈簧17a拉伸，其作用力也變弱，原稿顧12不跳起，並且通 過相互滑動卿而產生的縣轉矩使絲顯12相躲設備 11可自由停止。 這樣構成也會起到與上述同樣的作用效果。即，原稿壓板12 =未使驗触體11的狀態下，緊貼細f域u的原稿台玻 '，上’並且原稿台玻雜親。為麟稿放置_稿台玻璃上， 百先’握住與安裝有原稿壓板關裝置3⑽的部位相反一側的原 稿壓板12的端部或其附近等’將原稿壓板12向上方提升，嗣， 2原稿壓板12贿_ 16為轴獅，錢顧台朗的上表面 路出於外部’使原稿壓板12位於打開位置，此時，由於支承構件 3的限制部33與安裝構件3〇5的轉動限制部23抵接，所以原稿壓 板12可位於最大打開位置而不會過度打開。 、另外，在使原稿壓板12轉動時，原稿壓板12因壓縮彈簧17a 的作用力而被施力向打财向猶，因此可喊覺柯重量而向 打開方向轉動。另外，凸輪構件311與滑塊312的滑動部綱相 π動接觸’支承構件3 (原稿壓板12)相對於安裝構件3〇5轉 動因此，若使原稿壓板12的轉動停止，則通過因凸輪構件311 22 200909990 與滑動部314的滑動接觸而產生的摩擦轉矩，原稿壓板i2被保持 .在其停止的位置上不動。由此，可以使原稿壓板12相對於設 •體Π自由停止。 在露出的原稿台玻璃面上放置顧後，將已提相原稿屋板 12放下來，並且’使原稿壓板12向與原稿台玻祕觸的關閉方向 以鉸鏈銷16為轴轉動並向下方移動，使其成關閉狀態，此時，最 初為了抵抗壓縮彈簧17a的作用力，多少需要用力，而中途由於 嶋彈簧17a對原稿壓板12施力的作用力増大7原稿壓㈣ 的力矩’所以可以容易地獅原稿顯12。另外，凸輪構件311 =骨=綱彼此滑動接觸，與此同時，支承構件3(原稿顯 12)相對於安裝構件305轉動。 板原稿顯12進一步轉動並接近原稿台玻璃，則原稿壓 ==速度要加快，而由於從凸輪構件311與滑動部則互 變為轉動控制部301與插入凸部接觸並彼 ==接觸的狀態，所以轉動控制部301與插入凸部· 度或轉矩變化），因此’原稿壓板12的轉動速 :原相Ϊ會變慢’其結果是’原稿壓板12不會猛烈地撞 薄_，D/ 原稿Μ物，例如1張 壓板12使原稿不合從鍵銷16為轴只進行轉動，通過原稿 ‘上，爾猶魄物她口玻璃 台玻度較厚的情況下’在將原稿放置到原稿 後，使原域板12向_方向轉動，則在原稿壓板12 23 200909990 呈關閉狀態前，換言之，原稿壓板12與原稿台玻璃緊貼之前，原 ^稿壓板12與原稿的端部接觸，在與上述原稿的端部相反側的端部 .和原稿壓板12之間形成空間。即，原稿壓板12處於原稿壓板開 閉裝置300相反一侧的端部浮起的狀態，並將該浮起側的原稿壓 板12向設備主體Η側按壓或因原稿壓板12的自重，腳部邠向 攸安裝孔13拔出的方向（上方）移動，原稿壓板開閉裝置3〇〇向 上方移動，並且原稿壓板12以鉸鏈銷16為軸轉動。即，原稿壓 板開閉裝置300的高度自動調節，原稿壓板12移動，以覆蓋原稿 的上邛，例如，在該原稿的上部是平坦面的情況下，原稿壓板12 與該上部進仃面接觸，其結果是，厚度厚的原稿穩定地緊貼在原 稿台玻璃上，因此，與原稿的厚度無關，壓板12都可以使原 稿穩定地緊貼在職台_上，並且可以極力防止外光侵入設備 主體的内部而妨礙曝光。 象這樣’使原稿顯12向關方向轉動並接近原稿台玻璃， 則轉動控制部301與插入凸部互相滑動接觸並產生大的轉動 轉矩’因此原稿壓板12的轉動速度變慢，原稿壓板12不會猛烈 =_稿台玻璃。另外，原稿壓板12從關閉的狀態向打開原稿 壓板12的方_動時，棚手稍提制稿壓板12的狀態下，即 使手在某-卿離騎稿壓板12，由於摩擦和壓轉簧％ =主原稿壓板12將保持在其位置上，因此不會擔心原稿壓板12 在放手的—_猛烈地軸原稿台玻璃。 ^301 為左右時轉動轉矩形成為最大，所以在原稿壓板12 24 200909990 的轉動中途不會突然產生大的轉動轉矩，因此原稿壓板12在開閉 操作時的操作感會良好。 因此，該第7實施方式中的原稿壓板開閉裝置300及辦公設 備10可實現結構簡單’不增加製作成本，可廉價地發揮制動功能， 並且也使操作感良好’因此可細地使細公設備1〇。 參閱第16圖所示，如圖16是表示原稿壓板的轉動力矩曲線 與原稿壓板開職置的轉矩曲線的相關係賴表，原稿壓板的 轉動力矩曲線與原稿壓板開職置的轉矩鱗如下構成：在預定 的打開角度（在實施方式中是17。左右）交叉，在預定的打開角度 以上的情況下’原稿壓板開閉裝置的轉動轉矩以超出原稿壓板的 轉動力矩的狀態推移，在預定的打開角度以下的情況下，原稿壓 板的轉動馳呈超丨原稿壓板開閉裝置__矩的狀態。由 此，原稿壓板12在其打開時可以感覺不到其本來的重量而打開， 在中間的打f韻度的情況下，可以使原稿壓板12自由停止，且在 關閉時原稿壓板12不會急速落下，並且可以防止_時的浮動現 象。本發明的原稿壓板開閉裝置300在原稿壓板12的中間打開角 度下，可以使其轉動轉矩與現有公知的同樣超出該原稿壓板丨2的 轉動力矩，在規定的打開肢以下的情況下，通過轉動控制部可 以防止原稿壓板12的轉矩急速減弱。 另者’在卡合槽部302的底部設置！個轉動控制部3〇1，且使 原板12位於設備主體n的上表姻近時產生大的轉動轉 矩’但並不侷限於此，可以設置如下所述的轉動控制部··在原稿 壓板12相對於設備主體1H立於直立狀態的附㈣產生大的轉動 25 200909990 也可以設置多個轉動控制部;例如，在設置多個轉 動控㈣的情況下，當原稿壓板12位於設備主體 轉 近時，财設置2傳输卿，⑽私 的上表面附 :位於直立狀__別產=動板轉= 例如控ϋ部設置在卡合槽部的底部，並設置在卡合槽部的側面， ’虽原稿壓板12位於設備主體η的上表面附近時， 稿壓板12㈣於設備主體u位於直立狀㈣附近時可生 大的轉動轉矩和摩擦轉矩。 產生 1^!，本發明的原稿壓板開職置如下構成：在滑塊及凸輪 ，牛的-方設置嵌合凹部，在滑塊及凸輪構件的另—方，設置盘 肷合凹部嵌合的插人凸部，在嵌合凹部及插人凸部的至少一方設 置轉動控彻’在相對於安鶴件使支承構件_時，在該轉ς 中途產生摩擦轉矩，控悔觀板關_作，或者是在滑塊及 凸輪構件的—綠魏合凹部，在滑塊及凸輪構件的另一方設置 與嵌合凹職合_人凸部，在嵌合凹部設置轉動㈣部，在相 對於安賴件使支承構件轉動時，在該轉動中途產生Α__ 矩’控制原稿藏的開_作’由此，可以不增加製作成本、結 構簡單及發揮鑛功能’並且操作感也良好，因此制適用於影 印機、印刷機、傳真機、掃描器等辦公設備的原稿壓板開閉裝置。 按’以上所述’僅為本發明的一最佳具體實施例，惟本發明 的特徵並不侷限於此，任何熟悉該項技藝者在本發明領域内，可 輕易思及的變化或修飾，皆應涵蓋在以下本發_申請專利範圍 中。 26 200909990 【圖式簡單說明】 .第1圖係本發明__板·m置的辨公設備的—個示例中關 閉原稿壓板的狀態的側視示意圖； 第2圖係本發_原稿壓板開閉裝置的一個示例的圖，⑷是關閉 狀態時的側視示賴，⑹是打__的讀示意圖，（c)是打 開狀態時的側視示意圖； 第3圖係本發明的原稿難_裝置的—個示例的剖視示音圖， ⑷是表示關狀態示_，⑹是表示打開狀態示意圖； =4圖係本發明的钱構件的—個示例的圖，⑷是立體示意圖， (b)是主視示意圖； 第5圖係本發明的滑塊的—個示例的主視示意圖； ^圖係本發明的第2實施方式中的滑塊的—個示例的主視示意 係本發_ 2實施方式中_構件的—麵例的主視 ^ =係本翻的第3實施方式中的安裝構件的—個示例的立體 係本發明的第4實施方式中的安裝構件的—個示例的主視 =0圖係本發明的第4實施方式中的滑塊的—個示例的主視示意 第U圖係本㈣的第5實施方式巾縣顏板開概置的_個示 27 200909990 例的剖視示意圖； 6 ^樹賴細織置的一個示 弟13圖係本發明的第 例的立體示意圖； 7實施方式中的原稿壓板開閉裝置的一個示 ^ 14圖係本發明的第7實施方式中的安裝構件的—個示例的圖， (a)是立體示意圖，⑻是主視示意圖，⑹是沿⑻圖中的 A線的箭頭方向剖視示意圖； 第15圖係本發明的第7實施方式中的滑塊的 一個示例的圖，（a) ，（b) :立體不意圖’（c)是主視示意圖，⑷是側視示意圖； =16圖係本發明的第7實施方式中的原稿壓板關裝置的力矩曲 線與轉矩曲線的相關關係的圖表。 【主要元件符號說明】 原稿壓板開閉裝置…1 安震構件 ...2 基部 ...21 轉動部 ...22 軸孔 …2£β 轉動限制部 ...23 腳部 ...25 引導片 …25a 錐形面 …25b 插入凸片 -81 插入凸片 …82 轉動控制部 -91 安骏構件 …102 支撐構件 …103 提升構件 …104 第2滑塊 …105 凸輪構件 …106 第1滑塊 …108 28 200909990 凸部 26 安裝銷 • · · 115 軸承 28 鉸鏈銷 • · · 116 支撐構件 3 彈性構件 117 轉動片 31 壓縮彈簧 117a 軸插通孔 32 提升銷 118 限制部 33 工作銷 119 上板 3a 兩側板 122 兩侧板 3b 底板 121 下板 3c 安裝構件 202 安裝片 3e、3f 滑塊 204 彈性構件支撐部 3d 支撐構件 203 滑塊 5 腳部 205 抵接部 5a 下端部 205a 彈簧收納部 5b 壓縮彈簧 206 凸輪構件 6 凸輪構件 207 嵌_合凹部 7 加固框體 209 插入凸部 8 卡合槽部 211 轉動控制部 9 插入凸片 212 辦公設備 10 轉動控制部 213 設備主體 11 绞鍵銷 216 原稿壓板 12 原稿壓板開閉裝置… 300 安裝孔 13 轉動控制部 • · · 301 移動容許凹部 14 卡合槽部 • · · 302 29 200909990 鉸鏈銷 彈性構件 壓縮彈簧 卡合槽部 卡合槽部 …16 插入凸部 …303 …17 安裝構件 …305 …17a 凸輪構件 …311 …71 滑塊 …312 … 72 滑動部 …314 30In the example of the figure, there is one. J The slider 5 is formed of a grease, and is not particularly limited. Alternatively, as shown in FIGS. 3 and 5, the slider 5 may be housed in == and the support member 3 may be closed. The slider 5 is formed in a rectangular shape, and has a circular shape formed therein as a spring housing portion %, and the other end portion of the compression spring % is accommodated in the spring housing portion 5b. The bottom is the abutment portion 5a and the material 6 button. The shape of the cam member 6 is preferably formed in such a manner that the original platen 12 is gradually formed when the original platen is rotated in the axial opening direction with the hinge lock 16 in the sliding direction. The force of the original platen 12 falling in the closing direction due to its own weight is weakened, and with this action, the compression magazine 17a is stretched, and its force is also weakened, and the original document 12 does not jump. The front "concave portion 7 and the insertion convex portion 8 are fitted to each other, and the concavity concave portion? It may be provided in both the cam member 6 and the slider 5, and it is preferable to provide any of the cam member 6 and the slider 5, for example, on the slider 5. The recess 7 of this age is a slit-shaped card formed at the portion of the contact portion 53 of the slider 5 14 200909990, the green cypress to the lower sliding portion 51) = the = groove portion 71 is formed as a read _. listen. 71. The needle and the contact domain 7 phase _, the damper cam member 6 = 可 is preferably provided on any of the cam member 6 and the slider 5, and is placed on the cam member 6. The insertion convex portion 8 is, for example, an extended and protruding-inserted convex moon 81, and the front, the tenth, and the rape mouth 4 are in a direction of a private moon. The insertion protrusion 81 is disposed on the cam member 6 = for example. The surface to the lower part of the front surface. The width of the insertion projection 81 is formed to be narrower than the width of the engagement groove portion 71. The motion control unit 9 is configured to generate a friction torque during the rotation of the rotation member 3 with respect to the attachment member 2 to control the rotational speed of the original platen 12, and the front portion of the __9 can be set. Both the domain 7 and the insertion convex portion δ are preferably provided with any of the brim recessed portion 7 and the insertion convex portion 8, for example, provided on the tenon 8 (insertion tab 81). The rotation control unit 9 is not particularly limited as long as it can control the rotational speed of the original platen 12, and can be formed, for example, by widening the width of the insertion tab 8ι. The width of the rotation control portion 9 is preferably formed to be approximately the same as or slightly wider than the width of the engagement groove portion 71. The boundary between the rotation control portion 9 and the insertion tab 81 can be formed in a stepped shape, and is preferably formed obliquely. In other words, it is preferable to gradually widen the width of the insertion tab 81 to form the rotation control unit 9, and the position of the rotation control unit 9 is arbitrarily determined, for example, at a substantially central portion in the height direction of the surface of the cam member 6. A certain portion of the portion is such that a frictional torque is generated in the vicinity of the apparatus main body 在 at the original platen 12. Hereinafter, the operation of the original platen opening and closing device 1 and the office equipment 10 of the present invention will be described. The original platen 12 is uncorrected in the state of the apparatus main body u, as shown in Fig. ,, and is corrected on the device field 11 _ platen surface, and the original plate is smashed. At this time, the engaging groove portion is engaged with the insertion tab 81. In order to place the original on the original glass, the original platen 12 or the vicinity of the original platen 12 on the side opposite to the portion on which the original opening is mounted is held, and the original pressing plate 12 is lifted upward. That is, the original platen 12 is made to move and the upper surface of the original glass is exposed to the outside, so that the original platen 12 is placed at the open position. At this time, as shown in FIGS. 2(b) and 2(C), since the regulating portion 33 of the supporting member 3 abuts against the rotation restricting portion 23 of the mounting member 2, the original platen 12 can be positioned at the maximum position without being placed. Over-opened. Further, when the original platen 12 is rotated, the original platen 12 is biased to rotate in the opening direction by the biasing force of the spring, and can be rotated in the opening direction without feeling the weight: the other 'the engaging groove portion 71 and the insertion convex portion The sheets 81 are fitted and snapped together, and the support member 3 (original platen 12) is rotated relative to the money member 2 under the sprinkling 4 . After the manuscript is released on the glass surface of the platen, the raised original platen 2 is lowered. That is, the original platen 12 is moved in the direction of contact with the original plate _ in the closing direction by the hinge pin 16 and is expressed in the direction of τ, so that it is _ (four). At this time, in order to resist the urging force of the compression spring 17a, it is necessary to apply a force, and the urging force of the original platen 12 is increased by the urging force of the compression spring 17 by the squeezing spring plate 12, so that the original platen can be easily rotated. 12. Further, when the original platen a is further rotated, the rotational speed of the original platen 12 is increased, and both side faces of the rotation control portion 9 are slid with the wall portion of the engaging groove portion 71, and frictional torque is generated, and the rotational speed of the original platen 12 is generated. reduce. As a result, there is no fear that the original Kennedy 12 will be fierce 16 200909990 ^ ° face. The original placed on the original glass is a thin object, such as a wide money 丄; 1 lb,] the original pressure plate 12 is rotated only by the money lock 16 as a shaft, and the original is not floated from the original glass by the =b, 2 As a result, it will be placed close to the original table so that the original can be copied well. In the case where the document is thicker than the book, 'When the original is placed on the original table ^The original platen 12 is rotated in the closing direction, before the original pressing plate 12 is in the closed state', that is, before the original pressing plate 12 is in close contact with the table top The original pressing plate is in contact with the end portion of the original, and a space is formed between the end portion on the opposite side to the end portion of the original document and the original shank pressing plate 12. In other words, the original platen 12 is in a state in which the end portion of the original platen opening/closing device 1 is opposite to the side. The floating-side original platen 12 is turned toward . Further, the main body 11 is pressed or the weight of the original panel 12 is applied, the leg portion 25 is moved in the direction (upward) pulled out from the mounting hole 13, the original platen opening and closing device 1 is moved upward, and the original platen 12 of the original platen 12 is The shaft rotates. That is, the height of the original platen opening and closing L is automatically adjusted, and the original platen 12 is moved to cover the upper portion of the original. For example, in the case where the upper portion of the original is a flat surface, the original platen η is in surface contact with the upper portion. As a result, the original having a thick thickness is stably attached to the original glass. Thereby, irrespective of the thickness of the original document, the original platen 12 can stably hold the original on the original plate_, and the recording force can prevent the inner portion of the outer body of the outer wire from obstructing the exposure. Thus, since the original platen 12 is moved toward the original platen glass, the both side faces of the rotation control portion 9 are in sliding contact with the engaging groove portion 71_face to generate a frictional torque, and thus the rotational speed of the original platen 12 Lower, the original panel 12 does not violently hit the original glass. Further, when the original platen 12 is rotated in the opening direction from the state 17 200909990 in which the original platen 12 is closed, in the state where the original platen 12 is slightly raised by hand, even if the hand releases the original platen 12 at a certain moment, the rotation control portion 9 is rotated. The two side faces are in sliding contact with the side wall portions of the engaging groove portion 71 to generate frictional torque, so that there is no fear that the original platen 12 is violently hit the original platen glass at the moment of letting go. Further, since the rotation control portion 9 is formed by gradually widening the width of the insertion tab 81, the friction torque is not suddenly generated in the middle of the rotation of the original platen 12, and the frictional torque is gradually increased, so that the original platen 12 is opened and closed. The sense of operation is good. Therefore, the original platen opening and closing device 1 and the office equipment 1 of the present invention are simple in structure, do not increase the manufacturing cost, exhibit a braking function at low cost, and also have a good operational feeling, and the office equipment can be used with confidence. In the above embodiment, the rotation control 9 is formed on the insertion convex portion 8 (insertion tab 81), but it is not limited thereto, and as shown in FIG. 6, it can be disposed in the funnel recess 7 (card 5) Slot portion 72). Preferably, the rotation control unit gi in the second embodiment is formed by gradually reducing the width of the engagement of the engagement member 72, for example, substantially the same as or slightly narrower than the width of the insertion tab (refer to FIG. 7). The size is formed. Further, as shown in Fig. 7, the insertion fins 82 have substantially the same width. Thus, the rotation control unit 91 is formed in the insertion convex portion 8 (the same as the case where the insertion piece is inserted), and the support member 3 is attached to the attachment member 2, and the friction torque is generated on the way of the rotation. The closing operation of the pressure plate 12 makes the structure simple. The utility model does not increase the manufacturing cost, and the brake function is exhibited inexpensively, and the operation feeling can be improved. In addition, although not shown in the drawing, the green of the concave recess (engagement groove portion) is In addition to the pattern, the cam member 6 that is provided with the fitting recess and the depth direction of the slider 5 are mixed, and, in general, with the original button (4) opening, the insertion protrusion 18 200909990 (insertion tab) is It is sufficient that a braking action can be generated between the fitting recesses (the engaging groove portions). Further, the rotation control portion 9 is provided at one position of the insertion tab 81, but the invention is not limited thereto, and may be provided in two or more places. In the third embodiment, for example, as shown in Fig. 8, the rotation control unit 9 can be provided in two places. Thereby, friction torque is generated at two places in the middle of the rotation of the original platen 12, and the original platen can be controlled. 12 opening and closing action 0 In addition, a set of fitting is set The portion 7 and the insertion convex portion 8 are not limited thereto, and two or more sets may be provided. In the fourth embodiment, for example, as shown in Fig. 9, two cam control units 9 are provided with a rotation control unit 9 The insertion piece 81 is inserted, and as shown in FIG. 10, the fitting recessed portion 7 (the engaging groove portion 71) can be provided at two places of the slider 5 opposed to the insertion piece 81. Thus, the supporting member 3 is provided. When the mounting member 2 rotates, 'the friction torque is generated by the two sets of fitting recesses 7 and the insertion protrusions 8 on the way of the rotating towel', the opening and closing operation of the original platen 12 can be surely controlled, thereby making a single turn, without increasing the production. At the cost, the brake function can be exhibited at a low cost, and the operational feeling can be improved. Further, the riding portion 25 has described the case where the money is in the device body 11, but the present invention is not limited thereto. In the fifth embodiment, for example, as shown in FIG. 11, the mounting member (10) T is mainly detachably attached to the bottom plate 121 of the apparatus main body, and is orthogonal to the bottom plate 121 from the end portion of the bottom plate 121 (including the approximate Orthogonal direction.) Extension (standing) and two opposite each other ^ ^ '^ placed on _ board 1 22 cam members 1〇6 are formed. In addition, in this case, a lifting member may be provided. That is, the cam member 106 is provided with an insertion convex portion 8 (insertion tab 81) having a rotation of the projection portion 19 200909990 The control portion 9 is provided with a hinge pin ΐ6 via a mounting lock 5 disposed on the side plates i22 to penetrate the side plates 122 and the cam member chamber. The mounting member 102 is rotatably mounted on the mounting member 102 by a hinge pin 116 The support member (10) is provided with the second slider 12 having the fitting portion 7 (the engagement groove portion 71) having the same configuration as the above-described sliding member m, and the first slider block Between the second slider 1G5 and the second slider 1G5, a miscellaneous member 117_ that biases the opening of the original platen is placed. The lifting member 1〇4 is supported on the supporting member 103, and the lifting supporting member _ fits and can be attached to the original platen 12 at the free end Q of the wire member (10). The contact pin 1〇4 ° has a work pin 119. If the thickness of the first slider 108 and the work pin 119 glass original is measured, the original can be stably attached to the original plate glass frame to prevent external light from invading. The internal thief of the contact body is exposed, and the structure is simple, the manufacturing cost is not increased, the brake function is performed inexpensively, and the operation feeling is also good. The crotch portion is formed into a cylindrical shape, and a slider can be provided in the leg portion. In the sixth protrusion, that is, as shown in Fig. 12, the foot portion is formed downward from the mounting member by the == portion 205, and is formed into a lower end portion (bottom portion) by a synthetic resin or the like, that is, a bottomed cylinder. Body shape. The slider 205 is slidably disposed in the leg portion 205. The shank 203 is rotatably coupled to the yoke pin 216 as a shaft. The structure is in contact with the slider 1ϋ=the wheel member 2G7, and the convex surface 207 is in force contact. A reinforcing frame 20 is provided between the leg portion 205 and the slider block. 200909990 209 〇204 St The slotted slot groove 211 can be placed not on the cam member 207 and the slider • ^ & It is provided in the cam member 2 and the slider, and is provided in the slider 204, for example. Both of the insertion cam member 2's 7 and the slider are inserted into the convex portion, but it is preferably provided on the other side of the cam 2, for example, provided on the cam structure. The rotation control unit is formed as an i #广凸片212. The read configuration also realizes a simple structure, does not increase the cost, and exerts the braking function inexpensively, and also has a good operational feeling. Further, the rotation control unit 9 can be provided in the fitting recessed portion 7 (engagement=bottom: the rotation control unit 3〇 in the seventh embodiment, and protrudes as shown in Fig. η and Fig. 曲面, and is formed in a curved shape. Engagement two ====:== Toward: a slit shape having a concave cross section is formed thereon. The convex portion 3〇3 is inserted, and =丄 of Fig. j: protrudes from the sliding portion 314 of the slider 312. The insertion convex The width of the portion is formed by 疋+γ which is narrower than the width of the card δ groove portion 302, and is formed into a slightly narrower dimension. The inserted surface is preferably formed into a curved shape. The insertion convex portion (10) 峨娜细_ The butterfly has a torque of __wheel shape. When the support member 3 is opposed to each other, a friction torque of 200,909,990 is generated between the wearer member 305 and the support member 3, as shown in FIG. 12 is stopped in a free stop manner with respect to the apparatus main body n. For example, the upper surface, the front surface, and the corner portions of the cam member 311 are formed in a curved shape, and the surface of the sliding portion 314 is formed in a curved shape. That is, the cam structure, the 3U, and the slider are made. The shape of the sliding portion 314 is preferably formed such that when the original document 12 is rotated in the axial opening direction of the chain pin 6 When the draft 12 is gradually raised, the force of the original dust plate 12 falling in the closing direction due to its own weight is weakened, and with this action, the dust-reducing spring 17a is stretched, and the force thereof is also weakened, and the original document 12 does not jump and passes each other. The county torque generated by the sliding is so that the silk-phase 12-phase hiding device 11 can be freely stopped. This configuration also has the same effect as described above. That is, the original platen 12 = the state of the test body 11 is not tight, The manuscript table of the f domain u is attached, and the original plate is miscellaneous. For the lining of the manuscript _ on the platen glass, Hundreds first 'holds the original on the side opposite to the part on which the original platen closing device 3 (10) is attached. The end of the pressure plate 12 or its vicinity is 'lifting the original platen 12 upward, 嗣, 2 the original platen 12 is a lion, and the upper surface of the money is externally 'the original platen 12 is in the open position. At this time, since the restricting portion 33 of the support member 3 abuts against the rotation restricting portion 23 of the mounting member 3〇5, the original platen 12 can be positioned at the maximum open position without being excessively opened. In addition, the original platen 12 is rotated. When the original platen 12 is made by the compression spring 17a The force is applied to the fortune, so that the weight of the ke can be turned to the opening direction. In addition, the cam member 311 is in π-moving contact with the sliding portion of the slider 312, and the supporting member 3 (original pressing plate 12) is opposed. When the mounting member 3〇5 is rotated, if the rotation of the original platen 12 is stopped, the original platen i2 is held by the frictional torque generated by the sliding contact of the cam member 311 22 200909990 with the sliding portion 314. Therefore, the original platen 12 can be freely stopped with respect to the setting body. After the exposed original glass surface is placed, the raised original house 12 is lowered, and the original platen 12 is set. The hinge pin 16 is pivoted to the closing direction of the original plate glass and is moved downward to be in a closed state. At this time, in order to resist the urging force of the compression spring 17a, it is necessary to apply force, and the middle is due to the spring. The force of the force applied to the original platen 12 by the 17a is increased by the torque of the original pressure (4), so that the lion original can be easily displayed 12. Further, the cam member 311 = bone = the main body is in sliding contact with each other, and at the same time, the support member 3 (original display 12) is rotated with respect to the mounting member 305. When the plate original 12 is further rotated and approaches the original glass, the original pressure == speed is increased, and since the cam member 311 and the sliding portion are mutually changed into a state in which the rotation control portion 301 is in contact with the insertion convex portion and is in contact with each other. Therefore, the rotation control portion 301 and the insertion convex portion degree or torque change), and therefore the "rotation speed of the original platen 12: the original phase Ϊ will become slower", the result is that the original document plate 12 will not be violently hit _, D / Original artifact, for example, a platen 12 makes the original misalignment only rotate from the key pin 16 as the axis, and through the original 'on the original, the glass is thicker when the glass is placed on the original' Then, the original domain plate 12 is rotated in the _ direction, and before the original platen 12 23 200909990 is closed, in other words, before the original platen 12 and the original platen glass are in close contact, the original platen 12 is in contact with the end of the original. A space is formed between the end portion on the side opposite to the end portion of the document and the original platen 12. In other words, the document platen 12 is in a state in which the end portion on the opposite side of the document platen opening and closing device 300 is floated, and the document platen 12 on the floating side is pressed toward the side of the apparatus main body or the leg portion is tilted due to the weight of the original platen 12. When the mounting hole 13 is pulled out (upward), the original platen opening and closing device 3 is moved upward, and the original pressing plate 12 is rotated about the hinge pin 16. That is, the height of the original platen opening and closing device 300 is automatically adjusted, and the original platen 12 is moved to cover the upper cymbal of the original. For example, in the case where the upper portion of the original is a flat surface, the original pressing plate 12 is in contact with the upper nip surface. As a result, the thick original is stably attached to the original glass, and therefore, regardless of the thickness of the original, the pressure plate 12 can stably hold the original on the table, and can prevent external light from intruding into the main body of the apparatus. Internal and hinder exposure. When the original display 12 is rotated in the closing direction and approaches the original glass, the rotation control portion 301 and the insertion convex portion are in sliding contact with each other and generate a large rotational torque. Therefore, the rotational speed of the original platen 12 is slowed, and the original platen 12 is lowered. Will not be violent = _ platen glass. In addition, when the original platen 12 is moved from the closed state to the opening of the original platen 12, the shed handle slightly raises the platen 12, even if the hand is in a certain-cleared draft platen 12, due to friction and compression springs. % = The main original platen 12 will remain in its position, so there is no fear that the original platen 12 is letting go - the violent axis of the original platen glass. When the rotation torque is set to the maximum in the left and right directions, the large rotational torque does not suddenly occur in the middle of the rotation of the original platen 12 24 200909990, so that the operation feeling of the original platen 12 during the opening and closing operation is good. Therefore, the original platen opening and closing device 300 and the office equipment 10 according to the seventh embodiment can be configured to have a simple structure, without increasing the manufacturing cost, and can exhibit a brake function at a low cost and also have a good operational feeling, so that the fine public device can be finely made. 1〇. Referring to Fig. 16, Fig. 16 is a graph showing the relationship between the rotational moment curve of the original platen and the torque curve of the original platen opening, the rotational torque curve of the original platen and the torque scale of the original platen. It is configured such that the predetermined opening angle (in the embodiment, 17 or so) intersects, and in the case of a predetermined opening angle or more, the turning torque of the original platen opening and closing device is shifted beyond the rotational moment of the original platen. When the predetermined opening angle is less than or equal to the predetermined opening angle, the rotation of the original platen is in a state exceeding the moment of the original platen opening and closing device. Thereby, the original platen 12 can be opened without feeling its original weight when it is opened, and in the case of the intermediate rhyme, the original platen 12 can be freely stopped, and the original platen 12 is not idling when closed. Drops and prevents floating phenomenon when _. The original platen opening and closing device 300 of the present invention can pass the rotation torque of the original platen 12 at a middle opening angle of the original platen 12, and the rotation torque of the original platen 同样2 can be passed under the predetermined opening limb. The rotation control portion can prevent the torque of the original platen 12 from rapidly decreasing. The other one is set at the bottom of the engagement groove portion 302! The rotation control unit 3〇1 causes the original plate 12 to have a large rotational torque when the upper surface of the apparatus main body n is close to each other. However, the present invention is not limited thereto, and a rotation control unit as described below may be provided. 12 (4) standing in an upright state with respect to the apparatus main body 1H generates a large rotation 25 200909990 It is also possible to provide a plurality of rotation control portions; for example, in the case where a plurality of rotation controls (4) are provided, when the original platen 12 is located closer to the apparatus main body When the money is set 2 transmission, (10) private upper surface attached: located in the upright shape __ other production = moving plate rotation = for example, the control portion is placed at the bottom of the engagement groove portion, and is disposed on the side of the engagement groove portion , 'When the original platen 12 is located near the upper surface of the apparatus main body η, the platen 12 (4) can generate a large rotational torque and friction torque when the apparatus main body u is located in the vicinity of the upright shape (4). The original platen of the present invention is configured to have a fitting recess in the slider and the cam, and a fitting recess in the slider and the cam member. Inserting a convex portion, and providing a rotation control at least one of the fitting concave portion and the insertion convex portion to generate a friction torque in the middle of the rotation when the support member _ is made with respect to the anchor member, and the control is regretted. Or, in the green-and-concave recess of the slider and the cam member, the other side of the slider and the cam member is provided with the fitting recess _ human convex portion, and the rotating concave portion is provided in the fitting concave portion, in relation to When the supporting member rotates the supporting member, the Α__moment 'controls the opening of the original document in the middle of the rotation, thereby making it possible to improve the manufacturing cost, the structure is simple, and the mining function is good, and the operation feeling is also good. Original platen opening and closing device for office equipment such as photocopiers, printing machines, fax machines, scanners, etc. The above description is only a preferred embodiment of the present invention, but the features of the present invention are not limited thereto, and any changes or modifications that can be easily conceived by those skilled in the art in the field of the present invention are not limited thereto. All should be covered in the following _ patent application scope. 26 200909990 [Simplified description of the drawings] Fig. 1 is a side view showing a state in which the original platen is closed in an example of the identification device of the present invention, and the second figure is the opening and closing of the original platen An example of the device, (4) is a side view in the closed state, (6) is a read schematic of the hit __, (c) is a side view of the open state; and FIG. 3 is a difficult view of the original of the present invention A cross-sectional sound map of an example, (4) is a diagram showing an off state, (6) is a diagram showing an open state; a graph of 4 is an example of a money component of the present invention, and (4) is a perspective view, (b) FIG. 5 is a front view showing an example of a slider of the present invention; FIG. 5 is a front view showing an example of a slider in a second embodiment of the present invention. In the embodiment, the front view of the surface of the mounting member in the third embodiment of the present invention is the main example of the mounting member in the fourth embodiment of the present invention. FIG. 1 is a front view showing an example of a slider in a fourth embodiment of the present invention. Figure U is a cross-sectional view of a fifth embodiment of the present invention, which is a fifth embodiment of the present invention. Fig. 7 is a view showing an example of a mounting member in a seventh embodiment of the present invention, (a) is a perspective view, and (8) is a front view. (6) is a schematic cross-sectional view taken along the line A of the arrow (8); FIG. 15 is a view showing an example of the slider in the seventh embodiment of the present invention, (a), (b): stereoscopic not intended '( c) is a front view, (4) is a side view; and Fig. 16 is a graph showing a correlation between a torque curve and a torque curve of the original platen closing device in the seventh embodiment of the present invention. [Description of main component symbols] Original platen opening and closing device...1Anchor plate member...2 Base part...21 Rotary part...22 Axle hole...2£β Rotation limiter...23 Foot part...25 Guide Sheet...25a Conical surface...25b Insert tab-81 Insert tab...82 Rotary control unit-91 Anjun member...102 Support member...103 Lift member...104 2nd slider...105 Cam member...106 1st slider ...108 28 200909990 Projection 26 Mounting pin • · · 115 Bearing 28 Hinge pin • · · 116 Support member 3 Elastic member 117 Rotating piece 31 Compression spring 117a Shaft insertion hole 32 Lifting pin 118 Restriction 33 Working pin 119 Upper plate 3a Both side plates 122 side plates 3b bottom plate 121 lower plate 3c mounting member 202 mounting piece 3e, 3f slider 204 elastic member supporting portion 3d supporting member 203 slider 5 leg portion 205 abutting portion 5a lower end portion 205a spring receiving portion 5b compression spring 206 cam member 6 cam member 207 inlay recess 7 reinforcement frame 209 insertion projection 8 engagement groove portion 211 rotation control portion 9 insertion tab 212 office equipment 10 Rotation control unit 213 Equipment main body 11 Sleeve pin 216 Original platen 12 Original platen opening and closing device... 300 Mounting hole 13 Rotation control unit • · · 301 Movement permissible recess 14 Engagement groove • · · · 302 29 200909990 Hinge pin elastic member compression Spring engagement groove engagement groove...16 Insertion projection...303 ...17 Mounting member...305 ...17a Cam member...311 ...71 Slider...312 ... 72 Slider...314 30