200940463. ^1/^.0/pu 六、發明說明： 【發明所屬之技術領域】 本發明是關於一種玻璃板折彎切割方法與玻璃板折 彎切割裝置，詳細而言，是關於如下所述的玻璃板折彎切 割方法與折彎切割裝置，即：在玻璃板的表面上刻入劃線 (scribe) ’並且使該玻璃板的其中一側區域支持在支持機 構的平坦的表面上，在此狀態下，對該玻璃板的另一侧區 域施加外力，從而以上述劃線為起點而將該玻璃板分割切 斷。 【先前技術】 眾所周知’以液晶顯示器（liquid crystal display )、電 聚顯不器（plasma display )、電致發光顯示器 (electroluminescence display)以及場發射顯示器（fidd emission display )等的平板顯示器（細 panel display )用 的玻璃基板為代表的各種玻璃板在成形倾靖成與用途 相應的所需尺寸’這是慣你卜作為用於此切斷步驟的切斷 方法’多採用如下所述的折彎切割方法：藉由金剛石切割 器（diamond cutter)或雷射（lase〇等在玻璃板的表面 上對應於所需尺相騎触（触），再沿著該劃線而將 該玻璃板折彎切割。 若對採⑽折彎_方法_設在玻璃板表面上的 化形驗行考察，财先在刻賴_階段，在 ，^位存在有大致垂直於玻璃板表面的中間裂痕 me ian crack )以及沿著破璃板表面的侧向裂痕㈤㈣ 200940463 crack)。並且，若在玻璃板上作用有以劃線為邊界而向兩 侧拉裂的力，則如圖6A及圖6B所示，朝向左右兩側的拉 伸應力會集中在劃線的中間裂痕Sm的前端部X，因此中 間裂痕Sm會在厚度方向上伸展，當該中間裂痕Sm前進 而到達玻璃板10的背面時，該玻璃板1〇被切斷。 瘳 該折彎切割方法不僅在將玻璃板分割切斷成作為未 來製品的兩個區域（兩個所需部分）的情況下採用，而且 在將玻璃板分輯成—酬需部分與存在於玻璃板端部 的寬度較小的麵需部分的情況下亦得到制。舉後者為 =進行說明’基本上如圖7所示，對於在表面侧刻入（刻 Λ)有線S1的玻璃板1〇，利用由支持構件2〇a與支持 夾/、20b構成的支持機構而自背面侧來支持該玻璃板 10的所需部分（第—區域）鳳，並藉由推壓夾具4〇而自 該f璃板1〇的表面侧來下壓自支持機構20的-端20X(支 持具20b抵接於玻璃板1〇的抵接端2〇 需部分（第二區域）1〇B，兹“ w。 藉此以劃線S1為起點進行分割 ==破璃板1〇表面上的劃線S1的刻設位置較好 的疋/、支持機構20的一端2qx吻合。 别文蝴綠的具咖，_下述專 的玻璃板使二方法：將上表關财喊（劃線） r 刀犬出地水平載置於載置台或搬送機構 吏下部支持機構(支持夾具)自該玻璃 璃板的下表面，並且，祛^从粧』琢刃刀式接觸兄敢 亚且使上部按壓機構（推壓夾具）自上 5 200940463 方下降而接觸且按壓該玻璃板的劃線的靠突出端侧，藉此 而沿著劃線將玻璃板折彎切割。 而且’根據下述專利文獻2，揭示有一種方法：使上 表面賦予有切刻線（劃線）的玻璃板的端緣自輸送機 (conveyor)(支持構件）的端部突出，並且藉由下部按壓 構件（支持夾具）自下方支持玻璃板的劃線的靠反端緣侧， 在此狀態下’使上部按壓構件（推壓夾具）自劃線的斜上 方呈圓弧狀地下降而下壓玻璃板的劃線的靠端緣侧，藉此 將玻璃板折彎切割。 進而 很龈卜地辱利文獻3’？句不名一裡万法 表面賦予有切刻線（劃線）的玻璃板的端緣自平臺（table (支持構件）的端緣突出，並且將玻璃板與劃線平行地我 壓固定於平臺上，在此狀態下，使玻璃板的劃線 侧上升至平臺更上方，藉此將玻璃板折彎切割。 、 [專利文獻1]曰本專利特開2006_321695號公報 [專利文獻2]日本專利特開平8_25333($號公報 [專利文獻3]日本專利特開平7_237929號公報 然而’在採用藉由折彎切割來切斷玻璃板的方法 先前是處於在财魏^ 損」、「稜角」、「間隙」、「削邊」等㈣^邊」、「缺 :中的「削邊」為如下所述的缺圖所該些: 切斷後的其中-塊玻璃板職的 ’在 起部10AX，相對地，在另 ^部殘存有不當的突 在不當的欠缺部10BX。 板1〇Β的切斷端部存 200940463 此情況下，由於上述專利文獻〗、2、3中揭示的折彎 切割方法是基於在玻璃板上刻入劃線，而使拉伸應力引起 的應力集中作用於該齡的中間裂痕這—基本原理，因此 對於避免上述各缺陷中的「缺邊」的產生方面可有所期待。 然而’本發明者已择認的是：即便使用上述各文獻中 揭示的折彎切割方法，依然無法避免「缺損」、「稜角」、「間 隙」、「削邊」的產生。特別是在產生了上述「削邊」時， 其中-塊玻璃板10A較起部難χ雖可在端面研磨步驟 中予以切除’但存在端面研磨需要長時間的缺陷，而且另 -塊玻璃板的欠缺部1GBX g卩便進行端面研磨步驟亦 無法完全而仍會殘留—部分，從而產生品#方面的致 命問題。 本發明者瞭解到：該「削邊」的產生原因是由於，來 自推壓夾具等的外力對於藉由支持機構自其—端突出而支 持著的玻璃板職突㈣所作祕朗位置*適當，因而 Ο 彎矩（bending m咖ent)未均等地作用在玻璃板的劃線的 兩侧附得如下見解：當劃線的中間裂痕在雜 的作=厚度方向上前進時，分別作用於該中 間衡a—產生失調，從而阻礙 了中間裂痕在厚度方向上的直進性。 斟酌如此事項可發現，在折 機構突出的，突出部的作用點較為：U 際情況是尚未對如此事項作任何研究:里*彳备·1Γ 200940463 【發明内容】 本發明的技術課題在於，鑒於上述情況，提供一種藉 由使折彎切割時侧於刻人有劃線的玻璃板的外力、支持 玻璃板的支持機構、與將玻璃板固定在支持機構上的固定 機構的位置__當，從Μ會在_蘭產生不當缺 陷的玻璃板折彎切割方法與玻璃板折彎切割裝置。 本發明者反覆進行了努力研究，結果發現··若使支持 刻入有劃線的玻璃板的支持機構的—端、將該玻璃板固定 在支持機構上的固錢構的—端、與外力對自支持機構的 -端突出的綱板部分的作用點的位置關滿足特定條 件，則在折彎切割後的該玻璃板的切斷端部不會再產生不 當缺陷，從而根據該見解完成本發明。 就如此之觀點考慮，為解決上述技術課題而創造的本 發明的方法是一種玻璃板折彎切割方法，在玻璃板的第一 區域與第—區域的邊界部的表面蝴人·，使該玻璃板 的第-區域的-部分或全部支持在支持機構上，在進行該 支持時，使該玻璃板的第二區域的一部分或全部自上述支 持機構的-端突出，並且使上㈣線位於上述支彳械構的 端周邊，且彻in定機構使上述朗板的第—區域固定 於上述支持機構上，在此狀態下，自表面侧對上述玻璃板 =第二區域施加外力，從而以上述劃線為起點而將該玻璃 板分割切斷，上述玻璃板折彎切割方法的特徵在於··當將 對上述玻魏的第二區域施加外力的位置縣力點將存 在於上述支持機構的-賴的上述固定機構的—端設為固 200940463 /ρυ.200940463. ^1/^.0/pu VI. Description of the Invention: [Technical Field] The present invention relates to a glass plate bending and cutting method and a glass plate bending and cutting device, and in particular, to the following Glass sheet bending cutting method and bending cutting device, that is, a scribe is engraved on the surface of the glass plate and one side region of the glass plate is supported on the flat surface of the supporting mechanism, In this state, an external force is applied to the other side region of the glass sheet, and the glass sheet is divided and cut by using the scribing line as a starting point. [Prior Art] It is known that a flat panel display such as a liquid crystal display, a plasma display, an electroluminescence display, and a fidd emission display (fine panel display) The various glass sheets represented by the glass substrates are formed in the desired size corresponding to the application. This is the cutting method used for this cutting step. : The glass plate is bent and cut along the surface of the glass plate by a diamond cutter or a laser (lase〇 or the like on the surface of the glass plate corresponding to the desired ruler). If the inspection of the (10) bend _ method _ set on the surface of the glass plate, the first in the _ stage, there is a middle crack in the ^ position, which is perpendicular to the surface of the glass plate, and Lateral cracks along the surface of the glass plate (5) (4) 200940463 crack). Further, when a force which is pulled to the both sides by the scribe line is applied to the glass plate, as shown in FIG. 6A and FIG. 6B, the tensile stress toward the left and right sides is concentrated on the intermediate crack Sm of the scribe line. The front end portion X is such that the intermediate crack Sm extends in the thickness direction, and when the intermediate crack Sm advances to reach the back surface of the glass sheet 10, the glass sheet 1 is cut.瘳 The bending and cutting method is used not only in the case where the glass sheet is divided and cut into two regions (two required portions) of the future product, but also the glass sheet is divided into a required portion and exists in the glass. A portion having a smaller width at the end of the plate is also required to be partially formed. The latter is described as = ' basically as shown in FIG. 7 , for the glass plate 1 刻 engraved (lined) on the surface side, using a support mechanism composed of the support member 2 〇 a and the support clip /, 20 b The desired portion (first region) of the glass plate 10 is supported from the back side, and is pressed from the surface side of the glass plate 1 by the pressing clamp 4 to press the end of the support mechanism 20 20X (supporting the abutting end 2 of the 20b abutting on the glass plate 1〇 part (the second area) 1〇B," "w. This is divided by the scribing line S1 as the starting point == glass plate 1〇 The scribe line S1 on the surface has a better 疋/, and the end of the support mechanism 20 is 2qx. The essay has a green café, _ the following special glass plate makes the second method: the above table is shut down ( The line is placed on the lower surface of the glass plate, and the lower part of the glass plate The upper pressing mechanism (pushing jig) is lowered from the upper side of the upper 5 200940463 to contact and press the protruding end side of the scribe line of the glass plate, thereby The glass sheet is bent and cut along the scribe line. Moreover, according to the following Patent Document 2, there is disclosed a method of imparting the upper surface to the end edge of the glass sheet having the scribe line (scribe line) from the conveyor ( The end portion of the supporting member is protruded, and the lower pressing member (supporting jig) supports the opposite end edge side of the scribe line of the glass plate from below, and in this state, the upper pressing member (pushing jig) is self-scored The upper side of the obliquely downwards is arcuately lowered and the side edge side of the scribe line of the glass plate is pressed down, thereby bending and cutting the glass plate. Further, it is very humiliating and humiliating the literature 3'? The surface is provided with an end edge of the glass plate having the scribe line (scribe line) protruding from the end edge of the table (support member), and the glass plate is fixed to the platform in parallel with the scribe line, in this state, The scribe line side of the glass plate is raised to the upper side of the slab, and the glass plate is bent and cut. [Patent Document 1] Japanese Patent Laid-Open No. Hei. No. 2006-321695 [Patent Document 2] Japanese Patent Laid-Open No. Hei 8_25333 [Patent Document 3] Japanese Patent Special Open 7_2379 Bulletin No. 29, however, 'the method of cutting glass sheets by bending and cutting is previously in the financial category, "edge", "gap", "sharp edge", etc. (4) ^ edge", "missing: The "cutting edge" in the following is the result of the missing picture as follows: After the cut - the glass plate is in the 'part 10AX, relatively, there is an improper part in the other part that is improperly broken. 10BX. The cut end of the plate 1〇Β is stored in 200940463. In this case, since the bending and cutting method disclosed in the above-mentioned Patent Documents, 2, and 3 is based on the scribing on the glass plate, the tensile stress is caused. The stress concentration acts on the intermediate crack of this age - the basic principle, and therefore there is an expectation to avoid the occurrence of "blinding" in each of the above defects. However, the inventors have selected that even if the bending and cutting methods disclosed in the above documents are used, the occurrence of "defect", "edge", "gap", and "sharp" cannot be avoided. In particular, when the above-mentioned "sharp edge" is produced, the --glass plate 10A can be cut off in the end-grinding step even though it is difficult to get in the end portion. However, there is a long-term defect in the end face grinding, and the other-glass plate is If the missing part 1GBX g is used, the end grinding step can not be completely and still remains - part, resulting in a fatal problem in the product #. The present inventors have learned that the reason for the "cutting edge" is that the external force from the pressing jig or the like is appropriate for the secret position of the glass plate (4) supported by the support mechanism from its end. Therefore, the bending moment does not equally act on both sides of the scribe line of the glass sheet, and the following observation is given: when the intermediate crack of the scribe line advances in the direction of the impurity=thickness, respectively acts on the middle Balance a - produces an offset that hinders the straightness of the intermediate crack in the thickness direction. In view of such a matter, it can be found that, in the case where the folding mechanism is prominent, the action point of the protruding portion is relatively: U is not studied for any such thing: 彳*彳备·1Γ 200940463 [Disclosed] The technical problem of the present invention is that In the above case, there is provided an external force of the glass plate which is scribed on the scribe line when the bending is cut, a support mechanism for supporting the glass plate, and a position of the fixing mechanism for fixing the glass plate to the support mechanism. The glass plate bending and cutting method and the glass plate bending and cutting device which are caused by improper defects in the blue. As a result of intensive research, the inventors have found that the end of the support mechanism that supports the inscribed glass plate, the end of the solid structure that fixes the glass plate to the support mechanism, and the external force When the position of the action point of the panel portion protruding from the end of the support mechanism satisfies a specific condition, the cut end of the glass sheet after the bending and cutting is not further generated with an undue defect, thereby completing the present according to the knowledge. invention. In view of such a viewpoint, the method of the present invention created to solve the above-described technical problems is a glass sheet bending and cutting method in which a surface of a boundary portion between a first region and a first region of a glass sheet is colored Part or all of the first region of the plate is supported on the support mechanism, and when the support is performed, a part or all of the second region of the glass plate is protruded from the end of the support mechanism, and the upper (four) line is located above The periphery of the end of the support mechanism is fixed to the support mechanism by the in-situ mechanism, and in this state, an external force is applied to the glass plate=the second region from the surface side, thereby The glass plate is divided and cut by the scribing as a starting point, and the glass plate bending and cutting method is characterized in that, when the external force is applied to the second region of the glass, the point of the county force is present in the support mechanism. The end of the above fixing mechanism is set to solid 200940463 /ρυ.
定端時，自上述力點至上述支持機構的一端為止的距離A 與自上述固定端至上述支持機構的一端為止的距離3滿足 1.3SB/AS1.7 的關係。 根據如上所述的構成，以支持機構的一端為基準，上 述距離B比距離A長出規定長度，如此，使支持機構的一 端自固定端與力點的中央位置偏靠力點侧，藉此產生以支 持機構的一端為中心而在玻璃板的固定端侧與力點侧均等 ❹ 地產生應力的現象。並且，由於在支持機構的一端周邊存 在有玻璃板的劃線，因此分別在該劃線的兩侧產生的應力 (或彎矩）亦變得均等，從而難以在折彎切割後的玻璃板 =切斷端部產生不當缺陷，特別是已述的「削邊」。即，先 别易認為只要使上述支持機構的一端配置於固定端與力點 的中央位置附近便會在玻璃板的劃線的兩侧分別產生均等 的應力，但本發明者認識到上述想法本身便基於誤解，從 而發現上述數值範圍。因此，若上述B/A小於13，則接 近先前的位置關係，故而在玻璃板的劃線的兩侧產生的應 ❿ 力會變得不均勻，另一方面，若上述B/A超過1>7，則反 之與先前的位置關係相差甚遠，從而超過並脫離了適當的 範圍，因而劃線兩侧的應力會變得不均勻。根據如此之情 況’藉由敢於使玻璃板支持機構的一端自固定端與力點的 中央位置偏靠適當量，而難以產生以「削邊」為代表的切 斷端部的不‘缺陷，從而能夠在端面研磨步驟中圓滑且準 確地進行切斷端部的處理。 此時’上述支持機構是具有支持面的支持構件，且上 200940463At the fixed end, the distance A from the force point to one end of the support mechanism and the distance 3 from the fixed end to one end of the support mechanism satisfy the relationship of 1.3 SB/AS 1.7. According to the configuration described above, the distance B is longer than the distance A by a predetermined length based on one end of the support mechanism, so that one end of the support mechanism is biased from the center of the fixed end and the force point by the force point side. A phenomenon in which stress is generated uniformly on the fixed end side and the force point side of the glass sheet centering on one end of the support mechanism is generated. Further, since the scribe line of the glass plate exists around one end of the support mechanism, the stress (or bending moment) generated on both sides of the scribe line is also equalized, so that it is difficult to cut the glass plate after the cut = The cut end produces an undue defect, especially the "chamfered edge" already described. In other words, it is easy to think that if one end of the support mechanism is disposed near the center of the fixed end and the force point, uniform stress is generated on both sides of the scribe line of the glass sheet, but the inventors recognize the above idea. Based on the misunderstanding, the above numerical range was found. Therefore, if the above B/A is less than 13, the positional relationship is close to the previous position, so that the stress generated on both sides of the scribe line of the glass sheet becomes uneven. On the other hand, if the above B/A exceeds 1> 7, on the contrary, it is far from the previous positional relationship, and thus exceeds and deviates from the proper range, so the stress on both sides of the scribe line becomes uneven. According to such a situation, it is difficult to generate a non-defect of the cut end portion represented by "sharp edge" by arbitrarily biasing one end of the glass sheet supporting mechanism from the fixed end and the center position of the force point by an appropriate amount. The treatment of cutting the end portion can be performed smoothly and accurately in the end surface grinding step. At this time, the above supporting mechanism is a supporting member having a supporting surface, and the above is 200940463
I 述支持機構的一端是具有該支持面的支持構件的一端。 藉此，可僅由支持台或輸送機等具有支持面的支持構 件而構成支持，機構，從而亦可實現折彎切割裝置的 量的削減甚至可實現構成的簡化。 而且，上述支持機構由具有支持面的支待構件以及自 該支持構件隔開而配置的支持夾具所構成，且上 構的一端是該支持夾具抵接於玻璃板的抵接端。、 >藉此，可有效地顧與具有支持_支持構件不同體 而汉置的支持夾具的抵接端來圓滑地進行折彎切割。 端偏ί卜、tr，較好的是’上述齡自上述支持機構的一 =上，侧的距離與偏靠上述固定端側的距 在上述距離A的40%以内。 HP ’即便不使玻璃板_線的位置與支持機構的一端 裳乃可進行折彎切割而不會在切斷端部產生上述的「削 缺陷，無須嚴格地進行玻璃板的定位，從而 端侧的化。此時，若劃線偏靠力點侧以及偏靠固定 掛n其偏靠轉未處在上述麟A的佩㈣，則不僅會 生不進行帶轉礙，而且有可齡在靖端部產 分，二’二好:二，上述玻璃板的第-區域為所需部 指將成為i來部分。此處’所謂「所需部分」，是 廢棄處所謂「非所需部分」，是指將作 藉此，由於非所需部分的區域窄於所需部分，因而上 ❿ ❹ 200940463 述1.3SB/AS1.7的數值限定可發揮效果，從而可最大限 度地確保不會浪費所需部分的區域。 進而，較好的是，上述玻璃板的正交的二條邊分別大 二等? 1。。。mm且厚度小於等於3 mm，上述非所需部分 是沿著一條邊的2〇〜5〇 mm寬度的區域。 此上述的的數值限定得到更有效 地活用。 t i，固定機構是在上述支持機構的表面側產生 i = 引機構，或者’上述固定機構是配置 j上述玻璃板的表面侧，並將該玻璃板按胁上述支持機 構，且在與上·線平行的方向上延伸的按屢夹具。 即’使破璃板相對於支持機構而固 發揮其作用，則並無特別限定，若為上述兩== 利於進行可靠的岐。 W職構’則有 而且’對上述朗板的第二輯施加外力 的推C表面侧且在與上述劃線平行的方向上延伸 此時，對玻璃板的第二區域施加外 外力施加的方向性亦並無特別限定，若上施厥r括其 則有利於進行更可靠的折f切割。為上4推壓夹具， 成為具備以上構成的折彎切割方 ^ 可為平板顯示器用的玻璃基板。 、f象的玻璃板 二 =:¾ 200940463 JU^O/pil 另一方面，為了解決上述技術課題而創造的本發明 =是:種玻璃板折彎切割裝置，其構成為，在玻璃板的 第-區域與第二區域的邊界部的表面侧刻入劃線，使該玻 璃板的第-區域的-部分或全部支持在支持機構上，在進 打該支持時，使該玻璃板的第二區域的一部分或全部自上 述支持機構的-端突出，並且使上述劃線位於上述支持機 構的端周邊，且湘固定機構使上述玻璃板的第一區域 固疋於上述支持機構的一部分上，在此狀態下，藉由自表 面側對上述玻璃板的第二區域施加外力從而以上述劃線 ❹ 為起點將該玻璃板分割切斷’上述玻璃板折弯切割裝置的 特徵在於其構成為’當將對上述玻璃板的第二區域施加外 力的位置设為力點’將存在於上述支持機構的一端側的上 述固又機構的一端設為固定端時，自上述力點至上述支持 機構的-端為止的距離A與自上述固定端至上述支持機構 的一端為止的距離B滿足1.3SB/AS1.7的關係。 根據如上所述的構成，可享有與關於上述玻璃板折彎 切割方法的基本構成而已制的内容㈣的優點^ [發明效果] 如上所述，根據本發明，藉由使支持機構的一端自固 定端與力點的中央位置偏靠適當方向，從而以支持機構的 一端為中心而在玻璃板的固定端侧與力點侧均等地產生應 力，並且在存在於支持機構的一端周邊的玻璃板的劃線兩 侧分別產生的應力亦變得均勻，從而難以在折彎切割後的 玻璃板的切斷端部產生不當缺陷，特別是「削邊」。 12 200940463. 塞眘^本制之上述雜和雜能更明㈣懂，下文特 舉實施例’並配合所附圖式作詳細說明 【實施方式】 以下’參照附圖來對本發明的實施形態進行說明。再 下的實施形態中，例示了玻璃板為平板顯示器用的 f璃基板’特別是用於液晶顯示器或電漿顯示器中的破 基板的情況。 ❹ 圖1是表示本發明第一實施形態的玻璃板折彎切割裝 置（玻璃板折彎切割方法的實施狀況）的概略縱剖侧面圖， 圖2是其概略立體圖，該實施形態中，在玻璃板i的作為 所需部分的第-區域1A與作為非所需部分的第二區域出 的邊界部的表面侧刻入有劃線S。玻璃板1的第一區域1A 支持在由支持板或者輸送機等構成的具有支持面的支持構 件（支持機構）2的表面上，在該支持狀態下，玻璃板i 的第二區域1B自支持構件2的一端（右端）2X突出，且 ❹ 劃線S位於支持構件2的一端2X的正上方。而且，在支 持構件2的表面侧配設有作為固定機構的按壓夾具3，該 固定機構用於使玻璃板1的第一區域1A的一部分相對於 支持構件2而固定，並且，在玻璃板丨的第二區域1B的 表面侧配設有推壓夾具（折彎切割夾具）4,該推壓夾具4 用於對該弟二區域1B賦予朝向背面侧的外力。 此時’玻璃板1呈大致矩形狀，正交的二邊分別大於 等於1000 mm且厚度小於等於3 mm，第二區域1B是沿著 一邊（與劃線S平行的邊）的20〜50 mm寬度的區域。而 13 200940463 ^u^,〇/pu 且，按壓夾具3是在與劃線S平行的方向上延伸，從 及該方向的全長而按壓玻璃板i的第一區域认，並且，推 ^具4是在與劃線S平行的方向上延伸，從 向的全長而對玻璃板1的第二區域1B施加外力。 =，如圖i所示’在藉由按屋夾具3將玻璃板丄的 ^，域1A固定在支持構件2的表面上的 推壓夹具4來對該玻璃板1的第二區域1B施加外力^ 而以劃線S為起點將玻璃板！折弯切割時，進行了如 =位置奴。即，當將推壓夾具4對玻璃板丨的第二區 ，m施加外力的位置設為力點4Χ，將存在於支持構件3 2-端2Χ側的按壓夾具3的—端（右端）設為固定端3χ 時’設定成：自力點《至支持構件2的 ，與自固定端3Χ至支持構件2的—端2χ為止 滿足1.3SB/AS1.7的關係。 ，此，支持構件2的-端2Χ自固定端3又與力點4χ _ 、位置偏靠力點4Χ側，但由於如此般偏靠，以支持 件2的一端2Χ為中心而在玻璃板丨的固定端3又側盥 點4Χ侧均等地產生應力。並且，由於在支持構件2的一 的正上方存在有劃線s ’因而在該劃線s的兩侧分 ’產生的應力亦變得均勻，從而在伴隨著將推>1夹具4向 ^方（垂直下方）按壓而折彎切割後的玻璃板1的切斷端 補以產生不當缺陷，制是已述的「削邊」。 此時’刻設於玻璃板1上的劃線S未必需要如圖所示 般位於支持構件2的—端2X的正上方，只要是在上述距 200940463 ju^,〇 /pii 離A的40%的範圍内，則即便自支持構件2的一端2χ偏 靠固定端3X侧或力點4X侧，亦仍會以折彎切割後不會在 玻璃板1的切斷端部產生不當缺陷的程度而在劃線S的兩 侧均等地產生應力。 圖3是表示本發明第二實施形態的玻璃板折彎切割裝 置（玻璃板折彎切割方法的實施狀況）的概略縱剖侧面圖。 該第二實施形態的玻璃板折彎切割裝置與上述第一實施形 ❹ 態的不同之處在於：將玻璃板1固定於支持構件2的固定 機構是由使支持構件2的表面侧產生負壓吸引力的負壓吸 引機構5構成。該負壓吸引機構5主要是由支持構件2上 形成的多個貫通孔5a以及通過該些貫通孔5a進行真空抽 及的負麗源裝置（省略圖示）構成。並且，此時設定成， 存在於支持構件2的一端2X侧的負壓吸引機構5的一端 (右端）成為固定端5X，且自力點4X至支持構件2的一 端2X為止的距離a與自固定端5Χ至支持構件2的一端 2Χ為止的距離Β滿足1.3$Β/Α$ι.7的關係。由於其他構 成與上述第一實施形態相同，因此對兩者共同的構成要素 標註相同符號並省略其說明。 圖4疋表示本發明第三實施形態的玻璃板折彎切割裴 置（玻璃板折彎切割方法的實施狀況）的概略縱剖侧面圖。 該第二實施形態的玻璃板折彎切割裝置與上述第一實施形 態的不同之處在於：對破璃板i的第二區域1Β施加外力 的推壓夾具（折彎切割夾具）4是設為夾持該第二區域m 的端緣部（右端緣部）的剖面口字形的夾具，且該推壓失 15 200940463 jv^o/pu 具4疋設為以支持構件2的 運動的構成⑽失具4亦可點而向下方旋轉 並且，此時設定方下降的構成）。 二區⑽的表面的接觸點發二端:=璃板1的第 該力點支持構件2的 ，f點4X的作用’且自 定端3X至支持構件2的一端為止的距離A與自固 β/λ,,7 ❹ 明同：對:者共同的構成要素標钟 態同樣地，固定機構設為負廢吸引機構。31第實絲 圖5是表示本發明第四實施形態的玻璃板折彎切割裝 置（玻璃板折f切割方法的實施狀況）的概略縱剖側面圖。 〇 該第四實施形態的玻璃板折彎切割裝置與上述第一實施形 態的不同之處在於：自背面側支持玻璃板丨的支持機構2 疋由支持構件2a與支持夾具2b構成，其中，上述支挤構 件2a由支持板或輸送機等構成且具有支持面，上述支持夾 具2b自該支持構件2a的一端2ax隔開而配置於右方，且 前端抵接於玻璃板1的背面。並且，此時設定成：支持夹 具2b抵接於玻璃板1背面的抵接端2bx相當於支持機構2 的一端2X，且自力點4X至支持機構2的一端2X為止的 距離A與自固定端3X至支持機構2的一端2X為止的距 離B滿足1.3SB/AS1.7的關係。由於其他構成與上述第 一實施形態相同’因此對兩者共同的構成要素標註相同符 號並省略其說明。再者，關於該第四實施形態，亦可與上 16 200940463 JUZ6/pu 述第二實施形態同樣地將固定機構設為負壓吸引機構。 其次，針對直至本發明者發現只要滿足上述的1.3$ B/AS 1.7的關係’在玻璃板1的折彎切割後便不會在切斷 端部產生不當缺陷這一事項的實驗，說明其概略。 即’在圖1所示的形態中，藉由將距離A維持為5〇 mm 而使距離B發生變化，從而使b/a的值發生變化，在使推 壓夾具4下降而進行了玻璃板丨的折彎切割後，檢查在該 玻璃板1的切斷端部是否產生了不當缺陷。將該些實驗結 果作為實驗1〜7而列在下述表1中。再者，下述表j中’ 削邊的產生狀況一攔中的「◎」表示幾乎未觀察到削邊的 產生’「〇」表示觀察到了藉由進行端面研磨步驟等端面處 理便不再成問題的程度的削邊，rx」表示觀察到了即使在 實施端面處理後仍會作為異形而殘存的削邊。 [表1]One end of the support mechanism is one end of a support member having the support surface. Thereby, the support member can be constituted only by the support member having the support surface such as the support table or the conveyor, and the amount of the bending and cutting device can be reduced or the simplification of the configuration can be realized. Further, the support mechanism is constituted by a support member having a support surface and a support jig disposed apart from the support member, and one end of the upper portion is an abutting end of the support jig abutting against the glass plate. > Thereby, it is possible to smoothly perform the bending and cutting with the abutting end of the supporting jig having the support member different from the support member. Preferably, the end is erb, and the distance from the side of the supporting body is equal to or less than 40% of the distance A from the fixed end side. HP's can be bent without cutting the position of the glass plate _ wire and the end of the support mechanism without causing the above-mentioned "cutting defects at the cut end, and it is not necessary to strictly position the glass plate, so that the end side At this time, if the scribe line is biased against the force point side and it is fixed by the fixed hang, it is not in the above-mentioned lining A's peek (4), not only will the student not be disturbed, but also can be aged. The end of the production, the second 'two good: two, the first area of the glass plate is the required part of the finger will become part of i. Here, the so-called "required part" is the so-called "unwanted part" of the abandoned place , means that it will be used, since the area of the undesired part is narrower than the required part, the numerical limit of 1.3SB/AS1.7 mentioned above can be effective, so as to ensure maximum waste. Part of the area is required. Further, it is preferable that the two orthogonal sides of the glass sheet are equal to each other. . . The mm and the thickness are 3 mm or less, and the above undesired portion is an area of 2 〇 to 5 〇 mm along one side. The above numerical values are more effectively utilized. Ti, the fixing mechanism is to generate an i = guiding mechanism on the surface side of the above supporting mechanism, or 'the above fixing mechanism is the surface side of the glass plate of the configuration j, and the glass plate is pressed against the above supporting mechanism, and is in the upper line Press the clamps in parallel in the direction of the parallel. In other words, the glass plate is not particularly limited as long as it functions to the support mechanism, and the above two == are advantageous for reliable enthalpy. The W job' has and is 'applied to the push C surface side of the second series of the above-mentioned slabs and extends in a direction parallel to the above scribe line. At this time, the direction applied by the external force is applied to the second region of the glass sheet. There is no particular limitation on the nature, and if it is applied, it will facilitate a more reliable folding and f-cutting. In order to press the jig for the upper 4, it is a glass substrate for a flat panel display. Glass plate 2 of f image =: 3⁄4 200940463 JU^O/pil On the other hand, the present invention, which was created to solve the above technical problems, is a glass plate bending and cutting device which is configured as a glass plate. - the surface side of the boundary portion of the region and the second region is scored such that - or all of the first region of the glass plate is supported on the support mechanism, and when the support is applied, the second plate is made a part or all of the area protrudes from the end of the support mechanism, and the line is located at the end of the end of the support mechanism, and the Hunan fixing mechanism fixes the first area of the glass plate to a part of the support mechanism, In this state, the glass sheet is divided and cut by applying an external force to the second region of the glass sheet from the surface side. The glass sheet bending and cutting device is characterized in that it is configured as When a position at which an external force is applied to the second region of the glass sheet is a force point, when one end of the fixing mechanism existing on one end side of the support mechanism is a fixed end, the force point is up to the above The distance A from the end of the support mechanism and the distance B from the fixed end to one end of the support mechanism satisfy the relationship of 1.3 SB/AS 1.7. According to the configuration as described above, the advantage of the content (four) which has been prepared in relation to the basic configuration of the above-described glass sheet bending and cutting method can be enjoyed. [Effect of the invention] As described above, according to the present invention, one end of the support mechanism is self-fixed. The center position of the end point and the force point are biased in an appropriate direction to uniformly generate stress on the fixed end side and the force point side of the glass sheet centering on one end of the support mechanism, and the glass sheet existing around one end of the support mechanism The stress generated on both sides of the scribe line also becomes uniform, so that it is difficult to cause an undue defect, particularly "chamfering", at the cut end portion of the glass sheet after the bending and cutting. 12 200940463. The above-mentioned heterogeneous and heterogeneous functions of the system are more clearly understood. (IV) Understand the following embodiments and make detailed descriptions with reference to the drawings. [Embodiment] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Description. In the following embodiment, the glass plate is exemplified as a glass substrate for a flat panel display, particularly for use in a liquid crystal display or a plasma display. 1 is a schematic longitudinal cross-sectional side view showing a glass sheet bending and cutting device according to a first embodiment of the present invention (a state of implementation of a glass sheet bending and cutting method), and FIG. 2 is a schematic perspective view of the glass in the embodiment. A scribe line S is engraved on the surface side of the boundary portion between the first region 1A which is a desired portion of the plate i and the second region which is an unnecessary portion. The first region 1A of the glass sheet 1 is supported on the surface of a support member (supporting mechanism) 2 having a support surface constituted by a support plate or a conveyor, in which the second region 1B of the glass plate i is self-supported. One end (right end) 2X of the member 2 is protruded, and the scribe line S is located directly above one end 2X of the support member 2. Further, on the surface side of the support member 2, a pressing jig 3 as a fixing mechanism for fixing a part of the first region 1A of the glass sheet 1 with respect to the support member 2 is disposed, and, in the glass plate A pressing jig (bending and cutting jig) 4 for imparting an external force toward the back side of the second region 1B is disposed on the surface side of the second region 1B. At this time, the glass plate 1 has a substantially rectangular shape, the orthogonal sides are respectively 1000 mm or more and the thickness is 3 mm or less, and the second region 1B is 20 to 50 mm along one side (the side parallel to the scribe line S). The area of the width. And 13 200940463 ^u^, 〇/pu, the pressing jig 3 extends in a direction parallel to the scribe line S, and presses the first area of the glass sheet i from the entire length of the direction, and pushes the tool 4 It extends in a direction parallel to the scribe line S, and an external force is applied to the second region 1B of the glass sheet 1 from the entire length of the direction. =, as shown in Fig. i, 'the external force is applied to the second region 1B of the glass plate 1 by the pressing jig 4 which fixes the glass plate by the house clamp 3, the field 1A is fixed on the surface of the support member 2. ^ And use the scribing S as the starting point to put the glass plate! When bending and cutting, the slaves such as = position were carried out. That is, when the pressing jig 4 is applied to the second region of the glass sheet ,, the position at which the external force is applied to m is the force point 4 Χ, and the end (right end) of the pressing jig 3 existing on the 2-terminal 2 Χ side of the supporting member 3 is provided. When the fixed end is 3 ', the relationship between the self-supporting point 2 and the support member 2 is satisfied with the relationship of 1.3 SB/AS 1.7 from the self-fixing end 3 Χ to the end 2 支持 of the support member 2 . Here, the end 2 of the support member 2 is fixed from the fixed end 3 to the force point 4 χ _ , and the position is biased to the side of the force 4 , , but since it is so biased, the one end 2 支持 of the support member 2 is centered on the glass plate 丨The fixed end 3 and the side Χ point 4 Χ side equally generate stress. Further, since the scribe line s ' exists directly above one of the support members 2, the stress generated on the both sides of the scribe line s becomes uniform, so that the clamp 1 is pushed toward the ^ The cut end of the glass sheet 1 after being bent and cut by the square (vertically downward) is added to cause an improper defect, and the system is the "cut edge" described above. At this time, the scribe line S engraved on the glass plate 1 does not necessarily need to be located directly above the end 2X of the support member 2 as shown in the figure, as long as it is at the above-mentioned distance from 200940463 ju^, 〇/pii is 40% from A. In the range of the support member 2, even if one end 2χ of the support member 2 is biased against the fixed end 3X side or the force point 4X side, it will not cause an undue defect at the cut end of the glass sheet 1 after being bent and cut. Stress is equally generated on both sides of the scribe line S. Fig. 3 is a schematic longitudinal cross-sectional side view showing a glass sheet bending and cutting device (a state of implementation of a glass sheet bending and cutting method) according to a second embodiment of the present invention. The glass sheet bending and cutting device according to the second embodiment is different from the above-described first embodiment in that the fixing mechanism for fixing the glass sheet 1 to the supporting member 2 is caused by causing a negative pressure on the surface side of the supporting member 2. The attractive vacuum suction mechanism 5 is constructed. The vacuum suction mechanism 5 is mainly composed of a plurality of through holes 5a formed in the support member 2, and a negative source device (not shown) that performs vacuum extraction through the through holes 5a. Further, at this time, one end (right end) of the vacuum suction mechanism 5 existing on one end 2X side of the support member 2 is set as the fixed end 5X, and the distance a from the force point 4X to the one end 2X of the support member 2 is self-fixed. The distance 端 from the end 5Χ to the one end 2Χ of the support member 2 satisfies the relationship of 1.3$Β/Α$ι.7. The other components are the same as those of the first embodiment described above, and the same components are denoted by the same reference numerals, and their description will be omitted. Fig. 4A is a schematic longitudinal cross-sectional side view showing a glass sheet bending and cutting device (a state of implementation of a glass plate bending and cutting method) according to a third embodiment of the present invention. The glass sheet bending and cutting device according to the second embodiment is different from the first embodiment in that a pressing jig (bending and cutting jig) 4 for applying an external force to the second region 1 of the glass sheet i is set to a clamp having a cross-sectional shape of the end edge portion (right end edge portion) of the second region m, and the pressing loss 15 200940463 jv^o/pu has a configuration of the movement of the support member 2 (10) The device 4 can also be rotated downward and the setting side is lowered. The contact point of the surface of the second zone (10) is two ends: the first force of the glass plate 1 supports the member 2, the action of the point fX4' and the distance A from the fixed end 3X to one end of the support member 2 and the self-fixing β /λ,,7 ❹ Mingtong: Pair: Common constituent elements of the clockwise state Similarly, the fixed mechanism is set as a negative waste attraction mechanism. Fig. 5 is a schematic longitudinal cross-sectional side view showing a glass sheet bending and cutting device according to a fourth embodiment of the present invention (a state of implementation of the glass sheet folding and f-cutting method). The glass plate bending and cutting device according to the fourth embodiment is different from the first embodiment in that the support mechanism 2 that supports the glass plate from the back side is constituted by the support member 2a and the support jig 2b. The pressing member 2a is constituted by a support plate, a conveyor, or the like and has a support surface. The support jig 2b is disposed on the right side from the one end 2ax of the support member 2a, and the front end abuts against the back surface of the glass plate 1. Further, at this time, the abutting end 2bx of the supporting jig 2b abutting against the back surface of the glass plate 1 corresponds to the one end 2X of the support mechanism 2, and the distance A from the force point 4X to the one end 2X of the support mechanism 2 and the self-fixing end are set. The distance B from 3X to one end 2X of the support mechanism 2 satisfies the relationship of 1.3 SB/AS 1.7. The other components are the same as those of the above-described first embodiment. Therefore, the same components are denoted by the same reference numerals, and their description will be omitted. Further, in the fourth embodiment, the fixing mechanism may be a vacuum suction mechanism as in the second embodiment of the above-mentioned 16200940463 JUZ6/pu. Next, the inventors of the present invention have found that as long as the above-described relationship of 1.3$ B/AS 1.7 is satisfied, the experiment of not causing an undue defect at the cut end after the bending of the glass sheet 1 is described. . In other words, in the embodiment shown in Fig. 1, the distance B is changed by maintaining the distance A at 5 〇 mm, and the value of b/a is changed, and the pressing jig 4 is lowered to perform the glass plate. After the bending of the crucible was cut, it was checked whether or not an improper defect occurred at the cut end portion of the glass sheet 1. The results of these experiments are shown in Table 1 below as Experiments 1 to 7. In addition, in the following table j, "?" in the occurrence of the chamfering edge indicates that almost no occurrence of chamfering is observed. ""〇" indicates that the end surface treatment such as the end surface grinding step is not observed. The degree of chamfering of the problem, rx" indicates that the chamfer that remains as a deformed shape even after the end face treatment is observed. [Table 1]
根據上述表1可掌握：只要Β/Α的值大於等於13且 小於等於1.7 ’則在對玻璃板i進行折彎切割後，在切斷 端部產生的只不過是藉由實施端面處理便不再成問題的程 度的削邊。 其次，在同樣的圖i所示的形態中，藉由使距離錢 17 200940463. ov/^>o/put 且亦使距離B發生變化，使得b/a的值處於大於 小於，L7的範圍内（大致為h5)，使推壓 1 ΛΑ而進行了破璃板1的折彎切割後，檢查在該玻 3二否產生了不當缺陷。將該些實驗結果 削邊的產生心m::者;:述表2中’ 甲的◎」表不與上述表1同樣的事 項。 [表2]According to the above Table 1, it can be understood that as long as the value of Β/Α is greater than or equal to 13 and less than or equal to 1.7 ′, after the glass sheet i is bent and cut, the cut end is produced only by performing the end treatment. Then cut the edge of the problem. Secondly, in the same pattern shown in Figure i, by making the distance money 17 200940463. ov/^>o/put and also changing the distance B, the value of b/a is greater than or less than the range of L7. Inside (substantially h5), after pressing 1 ΛΑ and performing the bending and cutting of the glass 1 , it is checked whether an improper defect has occurred in the glass 3 . The result of the cutting of the results of the experimental results is that the heart m::; in the table 2, the "A" is not the same as the above Table 1. [Table 2]
、兄下心卩她_A發生變化的十 況下，、要B/A的值大於等於13且小於 * =後的麵板1的切斷端部_邊的產生狀況亦不^ 2的1，線8位於支持構件（支持機構 、 上方是藉由規定的定位裝置來逸杆44 由手動來進行，但不僅其可*〜/位裝置來進订或4 若欲提高餘精度，還會二為困難’而』 X雄τ，疋册固疋蠕3X、支拉 者作業的煩雜化，反而22„化或高成本化或 形態中，是將固定心γ產生便。因此，在圖1所示 4x1持在滿足上、f盔、支持構件2的一端2X以及力In the ten cases where the buddy changes her _A, the state of the cut end _ side of the panel 1 after the value of B/A is greater than or equal to 13 and less than * = is not 2, The wire 8 is located on the supporting member (the supporting mechanism is provided by the predetermined positioning device to release the lever 44 by manual operation, but not only can it be *~/bit device to be ordered or 4, if it is desired to improve the precision, the second is Difficult 'and' X Xiong τ, 疋 疋 疋 疋 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 、 3 3 X X X X X X X X X X X X X X X X X X X X X X X X X X X X X 4x1 is held at the end of the upper, f helmet, support member 2 2X and force
S 200940463 點4X側的實驗。此時，距離A設為5〇mm，距離B設為 75 mm，玻璃板1的厚度設為〇 7 mm。將該些實驗結果; 為實驗13〜17而列於下述表3中。再者，下述表3中，自 支持構件端起的偏移#(自支持構件2力一端2χ起的偏 靠量）-攔中的符號「+」表示劃線S偏靠力點炫侧的狀 態，符號「-」表示偏靠固定端3Χ侧的狀態，並且削邊的 產生狀;兄-攔中的「〇」以及「◎」表示與上述表！同樣 的事項。 [表3]S 200940463 Point 4X side of the experiment. At this time, the distance A was set to 5 mm, the distance B was set to 75 mm, and the thickness of the glass plate 1 was set to 〇 7 mm. The results of these experiments are shown in Table 3 below for Experiments 13-17. Further, in Table 3 below, the offset # from the end of the support member (the amount of bias from the end of the support member 2 to the end of the support member 2) - the symbol "+" in the stop indicates that the score S is biased toward the side of the force point. The state of the symbol "-" indicates the state of the side of the fixed end 3, and the occurrence of the chamfered side; the "〇" and "◎" in the brother-block indicate the above table! The same thing. [table 3]
根據上述表3可掌握：即便玻璃板i的劃線s自支持 構件2的一端向力點4X侧以及固定端3χ侧偏靠為相當於 ^離Α的30%的長度，仍幾乎未觀察到削邊的產生，而且， ^便其偏靠量為距離A的概，峨_的似不過是藉 1進行端面研磨步驟等端面處理便不再成_的程度的削 遭〇 在m再者:上述表1、表2、表3中所示的實驗結果不僅 ，1所示的形態中獲得，在圖3、圖4以及圖5所示的 形態中亦同樣獲得。 雖然本發明已以實施例揭露如上，然其並非用以限定 本發明，任何所屬技術領域中具有通常知識者，在不脫離 19 200940463. /pjui 本發明之精神和範圍内’當可作些許之更動與潤飾，故本 發明之保護範圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 圖1是本發明第一實施形態的玻璃板折彎切割裝置的 概略縱剖側面圖。 圖2是本發明第一實施形態的玻璃板折彎切割裝置的 概略立體圖。 圖3是本發明第二實施形態的玻璃板折彎切割裝置的 概略縱剖侧面圖。 圖4是本發明第三實施形態的玻璃板折彎切割裝置的 概略縱剖侧面圖。 圖5是本發明第四實施形態的玻璃板折彎切割装置的 概略縱剖侧面圖。 圖6A是用以說明先前問題的玻璃板的主要部分放大 縱剖侧面圖。 圖6B是用以說明先前問題的玻璃板的主要部分放大 縱剖側面圖。 圖7是先前一般的玻璃板折彎切割裝置的概略縱剖侧 面圖。 圖8是用以說明先前問題的玻璃板的主要部分放大縱 剖侧面圖。 【主要元件符號說明】 1、10 :玻璃板 1A、10 A :第一區域 200940463、 ^υ^.ο/ριί IB、10B :第二區域 2、20 :支持機構（支持構件） 2a、20a :支持構件 2b、20b :支持夾具 2bx、20bx :抵接端 2X、20X :支持機構的一端 3 :固定機構（按壓夾具） 3X :固定端 ^ 4、40 :推壓夾具（折彎切割夾具） 4X :力點 5 :固定機構（負壓吸引機構） 5a :貫通孔 5X :固定端 10AX :突起部 10BX :欠缺部 A:自力點至支持機構的一端的距離 Ο B:自固定端至支持機構的一端的距離 S、S1 :畫丨]線 Sm:中間裂痕 X:中間裂痕的前端部 21According to the above Table 3, it can be understood that even if the scribe line s of the glass plate i is biased from the one end of the support member 2 to the force point 4X side and the fixed end 3 χ side to a length corresponding to 30% of the Α, almost no observation is observed. The occurrence of the chamfered edge, and, ^, the amount of the bias is the distance A, and the 峨_ is similar to the extent that the end face treatment such as the end face grinding step is no longer _ _ _ _ _ The experimental results shown in Tables 1, 2, and 3 above were obtained not only in the form shown in 1, but also in the forms shown in Figs. 3, 4, and 5. Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can be made without departing from the spirit and scope of the invention. The scope of protection of the present invention is defined by the scope of the appended patent application. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic longitudinal sectional side view showing a glass sheet bending and cutting device according to a first embodiment of the present invention. Fig. 2 is a schematic perspective view of a glass sheet bending and cutting device according to the first embodiment of the present invention. Fig. 3 is a schematic longitudinal sectional side view showing a glass sheet bending and cutting device according to a second embodiment of the present invention. Fig. 4 is a schematic longitudinal sectional side view showing a glass sheet bending and cutting device according to a third embodiment of the present invention. Fig. 5 is a schematic longitudinal sectional side view showing a glass sheet bending and cutting device according to a fourth embodiment of the present invention. Fig. 6A is an enlarged longitudinal sectional side view showing the main part of the glass sheet for explaining the previous problem. Fig. 6B is an enlarged longitudinal sectional side view showing the main part of the glass sheet for explaining the previous problem. Fig. 7 is a schematic longitudinal cross-sectional side view showing a conventional general glass plate bending and cutting device. Fig. 8 is an enlarged longitudinal sectional side view showing the main part of the glass sheet for explaining the previous problem. [Description of main component symbols] 1, 10: Glass plate 1A, 10 A: First area 200940463, ^υ^.ο/ριί IB, 10B: Second area 2, 20: Support mechanism (support member) 2a, 20a: Supporting members 2b, 20b: Supporting jigs 2bx, 20bx: Abutting ends 2X, 20X: One end of supporting mechanism 3: Fixing mechanism (pressing jig) 3X: Fixed end ^ 4, 40: Pushing jig (bending and cutting jig) 4X : Force point 5: Fixing mechanism (negative pressure suction mechanism) 5a: Through hole 5X: Fixed end 10AX: Projection portion 10BX: Missing portion A: Distance from the self-stress point to one end of the support mechanism Ο B: From the fixed end to the support mechanism Distance S at one end: S1: Drawing line Sm: Intermediate crack X: Front end portion 21 of the intermediate crack