201245065 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種玻璃切斷機，尤其關於一種可防止 (或減少）因切刀抵接於矩形板狀物之一端面而導致之矩形 板狀物之裂痕或缺損之矩形板狀物之切斷裝置及用於該矩 形板狀物之切斷裝置之切刀裝置。 【先前技術】 先前，已知有以如下方式構成之玻璃切斷裝置，即，如 圖10所示’使定位於預先決定之切入深度h之切刀C向相對 於玻璃板G之表面g3平行之方向（例如水平方向）即箭頭之 方向移動，於抵接於玻璃板G之一端面gl之後，使該切刀 C於按壓於玻璃板G之狀態下進而一面向玻璃板g之相反側 之另一端面g2移動，一面於玻璃板g之表面g3切入成為切 折之起點之傷痕（切線）（例如參照專利文獻丨）。 [先前技術文獻] [專利文獻] [專利文獻1]曰本專利特開平08-283032號公報 【發明内容】 [發明所欲解決之問題] 然而’由於上述專利文獻1中記载之玻璃切斷裝置為如 下構成，即於切刀C抵接於玻璃板G之一端面gl之情形 時，該切刀C不向鉛垂上方移動，故而有因該抵接之衝擊 而導致玻璃板G裂痕或缺損之問題。尤其於玻璃板〇較薄 之情形時（厚度3.0 mm以下），該問題較為顯著。 162778.doc 201245065 本發明係鑒於上述情況而完成者，其目的在於提供一種 可防止（或減少）因切刀抵接於矩形板狀物（例如玻璃板）之 一端面而導致之矩形板狀物之裂痕或缺損之矩形板狀物之 切斷裝置及用於該矩形板狀物之切斷裝置之切刀裝置。 [解決問題之技術手段] 本發明提供一種矩形板狀物之切斷裝置，其係以如下方 式構成者，即，使定位於預先決定之切入深度之切刀相對 於切折對象之矩形板狀物之表面平行地移動而抵接於上述 矩形板狀物之一端面，進而一面向上述矩形板狀物之相反 側之另一端面移動’一面於上述矩形板狀物之表面切入成 為切折之起點之傷痕，且包含：切刀頭本體，其支撐上述 切刀以使得上述切刀於對上述切刀施加向鉛垂上方之力之 情形時移動；切壓賦予機構，其將上述切刀按壓於上述矩 形板狀物之表面；及檢測機構’其檢測上述切刀是否抵接 於上述矩形板狀物之一端面；且上述切壓賦予機構於上述 檢測機構檢測出上述切刀抵接於上述矩形板狀物之一端面 之情形時’將上述切刀按壓於上述矩形板狀物之表面。 根據本發明，支撐切刀以使得上述切刀於施加有朝向鉛 垂上方之力之情形時（例如於錯垂方向）移動，故而與切刀 不移動之先前相比’可緩和切刀抵接於矩形板狀物之一端 面時之衝擊。藉此’可實現能夠防止（或減少）因切刀抵接 於矩形板狀物之一端面而導致之矩形板狀物之斷裂或缺損 之矩形板狀物之切斷裝置。 又’本發明之矩形板狀物之切斷裝置較佳為進而包含： 162778.doc -4 · 201245065 切刀支揮臂，其經由切刀固持器支撐上述切刀，並且以基 端卩側為中心向知垂方向擺動自如地支標於上述頭本體； 及接點，其藉由與在自重之作用下向鉛垂下方擺動之上述 切刀支㈣抵接而與該切刀支㈣電性連接，且限制該切 刀支撐臂向鉛垂下方之擺動；且上述檢測機構檢測上述切 刀支撲是與上述接點'間之通電狀態，上述切壓賦予機構 於上述檢測機構檢測出預先決定之通電狀態之情形時，將 上述切刀按壓於上述矩形板狀物之表面。 根據本發明之矩形板狀物之切斷裝置，於相對於矩形板 狀物之表面平行移動之切刀抵接於矩形板狀物（例如玻璃 板）之一端面之情形時，切刀支撐臂藉由該抵接之矩形板 狀物之作用而被相對性地上推，從而以基端部側為中心向 鉛垂上方擺動。藉此，切刀不承受切壓賦予機構之負載而 自矩形板狀物之一端面側到達至矩形板狀物之表面。藉 此’緩和切刀抵接於矩形板狀物之一端面時之衝擊。而 且’於檢測出切刀到達至矩形板狀物之表面之情形（即， 檢測機構檢測出預先決定之通電狀態之情形）時，首先藉 由切壓賦予機構之作用而將切刀按壓於矩形板狀物之表面 (即，賦予切壓）。 如上所述，根據本發明之矩形板狀物之切斷裝置，與切 刀不移動之先前相比，可緩和切刀抵接於矩形板狀物之一 端面時之衝擊。藉此’可實現能夠防止（或減少）因切刀抵 接於矩形板狀物之一端面而導致之矩形板狀物之裂痕或缺 損之矩形板狀物之切斷裝置。 I62778.doc 201245065 又’本發明之矩形板狀物之切斷裝置較佳為於上述頭 本體形成有自鉛垂方向下表面向鉛垂上方延伸之作為氣缸 之縱孔及連通於該縱孔之空氣通路，且進而包含：空氣 源’其經由電磁閥連接於上述空氣通路；活塞，其配置於 上述縱孔内；及控制機構，其以自上述空氣源經由上述空 氣通路向上述縱孔供給空氣之方式控制上述電磁閥；且於 上述活塞之鉛垂下方，以與在供給至上述縱孔之空氣之作 用下被向鉛垂下方下壓之上述活塞抵接之方式配置有上述 切刀支撐臂，上述控制機構於上述檢測機構檢測出預先決 定之通電狀態之情形時’以自上述空氣源經由上述空氣通 路向上述縱孔供給空氣之方式控制上述電磁閥，上述活塞 在供給至上述縱孔之空氣之作用下被向鉛垂下方下壓而與 上述切刀支撐臂抵接，使該切刀支撐臂向鉛垂下方擺動， 藉此，將上述切刀按壓於上述矩形板狀物之表面。 根據本發明之矩形板狀物之切斷裝置，於相對於矩形板 狀物之表面平行移動之切刀抵接於矩形板狀物（例如玻璃 板）之一端面之情形時，切刀支撐臂藉由該抵接之矩形板 狀物之作用而被相對性地上推，從而以基端部側為中心向 鉛垂上方擺動。藉此，切刀不受切壓賦予機構之負載而自 矩形板狀物之一端面側到達至矩形板狀物之表面。藉此， 緩和切刀抵接於矩形板狀物之一端面時之衝擊。而且，於 檢測出切刀到達至矩形板狀物之表面之情形（即，檢測機 構檢測出預先決定之通電狀態之情形）時，首先藉由活塞 之作用將切刀按壓於矩形板狀物之表面（即，賦予切壓）。 162778.doc 201245065 如上所述，根據本發明之矩形板狀物之切斷裝置，與切 刀不移動之先前相比，可緩和切刀抵接於矩形板狀物之一 端面時之衝擊。藉此，可實現能夠防止（或減少）因切刀抵 接於矩形板狀物之一端面而導致之矩形板狀物之裂痕或缺 損之矩形板狀物之切斷裝置。 又’本發明之矩形板狀物之切斷裝置較佳為包含：位置 檢測機構，其檢測上述切刀之位置；比較機構，其將上述 位置檢測機構檢測之位置與預先決定之設定範圍進行比 較；及判定機構’其根據藉由上述比較機構獲得之比較結 果而判定上述矩形板狀物是否存在裂痕；且上述位置檢測 機構於上述檢測機構檢測出預先決定之通電狀態之情形 時’檢測此時間點之上述切刀之位置作為上述矩形板狀物 之一端面之位置，上述比較機構將上述位置檢測機構檢測 之上述矩形板狀物之一端面之位置與預先決定之設定範圍 進行比較，上述判定機構根據藉由上述比較機構獲得之比 較結果而判定上述位置檢測機構檢測之上述矩形板狀物之 一端面是否存在裂痕。 根據本發明之矩形板狀物之切斷裝置，可實現能夠防止 (或減少）因切刀抵接於矩形板狀物之一端面而導致之矩形 板狀物之裂痕或缺損，而且能夠檢查矩形板狀物之一端面 是否存在裂痕之矩形板狀物之切斷裝置。 又’本發明之矩形板狀物之切斷裝置較佳為，上述位置 檢測機構於上述檢測機構檢測出預先決定之通電狀態之情 形時，檢測此時間點之上述切刀之位置作為上述矩形板狀 162778.doc 201245065 物之另一端面之位置，上述比較機構將上述位置檢測機構 檢測之上述矩形板狀物之另一端面之位置與預先決定之設 定範圍進行比較，上述判定機構根據藉由上述比較機構獲 得之比較結果而判定上述位置檢測機構檢測之上述矩形板 狀物之另一端面是否存在裂痕。 根據本發明之矩形板狀物之切斷裝置，可實現能夠防止 (或減少）因切刀抵接於矩形板狀物之一端面而導致之矩形 板狀物之裂痕或缺損’而且能夠檢查矩形板狀物之另一端 面是否存在裂痕之矩形板狀物之切斷裝置。 本發明提供一種切刀裝置’其係包含於切折對象之矩形 板狀物之表面切入成為切折之起點之傷痕者，且包含：頭 本體’其支撐上述切刀以使得上述切刀於對上述切刀施加 向船垂上方之力之情形時移動；及切壓賦予機構，其於上 述切刀抵接於上述矩形板狀物之一端面之情形時，將上述 切刀按壓於上述矩形板狀物之表面。 藉此，可實現適於本發明之矩形板狀物之切斷裝置之切 刀裝置。 又，本發明之切刀裝置較佳為包含：切刀支撐臂，其經 由切刀固持器支撐上述切刀，並且以基端部側為中心向鉛 垂方向擺動自如地支撐於上述頭本體；及接點，其藉由與 在自重之作用下向鉛垂下方擺動之上述切刀支撐臂抵接而 與該切刀支撐臂電性連接，且限制該切刀支撐臂向鉛垂下 方之擺動。 藉此，可實現適於本發明之矩形板狀物之切斷裝置之切 162778.doc • 8 · 201245065 刀裝置。 又，本發明之切刀裝置較佳為，於上述頭本體形成有自 鉛垂方向下表面向鉛垂上方延伸之作為氣缸之縱孔、及連 通於該縱孔並且經由電磁閥連接有空氣源之空氣通路，且 進而包含配置於上述縱孔内之活塞，且於上述活塞之鉛垂 下方，以與在供給至上述縱孔之空氣之作用下被向鉛垂下 方下壓之上述活塞抵接之方式配置有上述切刀支撐臂。 藉此，可實現適於本發明之矩形板狀物之切斷裝置之切 刀裝置。 [發明之效果] 如以上所說明，根據本發明，可提供一種能夠防止（或 減少）因切刀抵接於矩形板狀物之一端面而導致之矩形板 狀物之裂痕或缺損之矩形板狀物之切斷裝置及用於該矩形 板狀物之切斷裝置之切刀裝置。 【實施方式】 以下’ 一面參照圖式一面對本發明之一實施形態之玻璃 切斷機進行說明。 [玻璃切斷機ίο之概要] 圖8係玻璃板之一般製造步驟之說明圖。如圖8所示，平 板顯不器用玻璃板（例如液晶顯不器（LCD，Liquid Crystal Display)用玻璃板、電聚顯不 (PDp，plasma Display Panel ’電漿顯示器面板）用玻璃板、有機EL(Electro Luminescence電致發光）顯示器或者有機el平面光源用玻 璃板）一般經由如下步驟等而製造··切折步驟P1，將製造 162778.doc 201245065 為特疋厚度之玻璃板切折為特定尺寸；倒角步驟p2，使用 研削石或研磨石對該切折後之玻璃板之端面實施倒角加 工；清洗 '乾燥步驟P3,對該倒角加工後之玻璃板進行清 洗' 乾燥；及測定步驟P4,測定該清洗、乾燥後之玻璃板 之外形形狀。 玻璃切斷機10設置於上述步驟中之切折步驟ρι。圖丄係 用以說明切刀裝置12之移動方向之圖。如圖丨所示，切折 對象之玻璃板20為矩形之玻璃板（例如，長度數mx寬度數 mx厚度數mm左右），且藉由周知之搬送機構（未圖示）搬 送，並疋位載置於玻璃切斷機10之平台22(參照圖2(a)) 上。再者，藉由玻璃切斷機10加工有切線之玻璃板2〇之較 佳尺寸係厚度為0.1〜3.0 mm 〇 圖2(a)〜2(d)係用以說明切刀支撐臂12f之動作之圖。如 圖2(a)〜2(d)所示，玻璃切斷機10係使用周知之升降機構等 使定位於預先決定之切入深度h之切刀12h向相對於玻璃板 20之表面平行之方向即箭頭方向移動（參照圖2(a))，而抵 接於玻璃板20之一端面20a(參照圖2(b))。而且，使該切刀 12h於按壓於玻璃板20之狀態下進而一面向玻璃板2〇之相 反側之另一端面20b移動（參照圖2(c)及圖2(d))，一面於玻 璃板20之表面切入成為切折之起點之傷痕（切線）。 [玻璃切斷機10之構成] 圖3係玻璃切斷機10之系統構成圖。如圖1及圖3所示， 玻璃切斷機10包含對應於玻璃板20之四邊而配置之4個切 刀裝置12χ丨〜12γ2、4個切刀驅動機構14X丨〜14丫2，且進而包 162778.doc •10- 201245065 含用以控制該等之控制裝置16、記憶裝置18等。 [切刀裝置12Χ丨〜12丫2之構成] 圓4係切刀裝置12之構成圖。如圖4所示，各切刀裝置 12X1〜12γ2包含頭本體12a 〇 於頭本體12a形成有自其鉛垂方向下表面12al向内部（即 鉛垂上方）延伸之作為氣缸之縱孔12a2及連通於該縱孔 12a2之空氣通路12a3。於縱孔12a2内經由滑套〖孔配置有 活塞12c。工氣源12e經由電磁閥12d而連接於空氣通路 12a3。 若藉由控制裝置16以打開電磁閥I2d之方式進行控制， 則自空氣源1 2e經由空氣通路12a3向縱孔12a2供給預先決 定之壓力之空氣，且藉由該空氣之作用向鉛垂下方下壓活 塞12c而使其前端（所支撐之輥12ci)抵接於切刀支撐臂 12f ’而對該切刀支撐臂12f施加向鉛垂下方擺動之力（參照 圖2(b))。藉此，切刀12h被按壓於玻璃板20之表面。 切刀支撐臂12f以與在供給至縱孔12a2之空氣之作用下 被向鉛垂下方下壓之活塞12c(支撐於其前端之輥i2cl)抵接 之方式配置於活塞12c之鉛垂下方。 切刀支撐臂12f之基端部側之軸12fl由固定於頭本體12a 之軸承12a4支撐。即，切刀支撐臂12f以基端部側之軸12f 1 為中心向錯垂方向擺動自如地支撐於頭本體12a。 切刀固持器12g之軸12gl由固定於切刀支撐臂12f之軸承 12f2支撐。即，切刀固持器12g以軸12gl為中心於相對於 玻璃板20之表面平行之方向可旋轉地支撐於切刀支撐臂 I62778.doc 201245065 1 2f。藉由可旋轉地支撐切刀固持器1 2g而可獲得以下所示 之效果。於將切刀固持器12g之軸12gl安裝於軸承12f2 時，即便切刀12h之行進方向與切刀裝置12之行進方向不 一致，當一面使切刀12h抵接於玻璃板20之表面一面使切 刀裝置12行進時，亦可將切刀I2h之行進方向矯正為與切 刀裝置12之行進方向相同之方向。 切刀12h例如為圆盤形之切刀輪（或切刀片），且以其之 至少一部分較切刀固持器12g之下端更向鉛垂下方突出之 狀態支撐於切刀固持器12g。該突出之部分按壓於玻璃板 20之表面（參照圖2(b))。 切刀支撐臂12f因自重而以軸12 fl為中心向紹垂下方擺 動’而抵接於固定於頭本體12a之接點i2i(參照圖2(a))。藉 此’接點12i與切刀支撐臂12f電性連接，且限制切刀支擇 臂12f向鉛垂下方之擺動。 頭本體12a、切刀支撐臂12f及接點12i分別由金屬等導電 材料構成。再者’雖頭本體12a與切刀支撐臂I2f電性連 接’但因接點12i由合成樹脂等絕緣材料12il包圍，故與頭 本體12a電性絕緣。 [切刀驅動機構14χι、14χ2之構成] 裝置12Χ1、12Χ2例如分別滑動移動自如地安裝於隔 開固定間隔而配置之於X方向（參照圖1)延伸之二根導向構 (圖示）同樣地，切刀裝置12 γ i、12 γ 2例如滑動移動 自如地女裝於隔開固定間隔而配置之於Y方向（參照圖1)延 伸之二根導向構件（未圖示）。 162778.doc 12 201245065201245065 VI. Description of the Invention: [Technical Field] The present invention relates to a glass cutter, and more particularly to a rectangular plate capable of preventing (or reducing) abutting of an end surface of a rectangular plate by a cutter A cutting device for a rectangular plate having cracks or defects of a shape and a cutter device for a cutting device for the rectangular plate. [Prior Art] Conventionally, there has been known a glass cutting device constructed in such a manner that the cutter C positioned at a predetermined cutting depth h is parallel to the surface g3 of the glass sheet G as shown in FIG. The direction (for example, the horizontal direction) is the direction of the arrow, and after abutting against one end surface gl of the glass sheet G, the cutter C is pressed against the glass sheet G and further faces the opposite side of the glass sheet g. When the other end surface g2 is moved, the surface (g3) of the glass plate g is cut into a flaw (tangent line) which is a starting point of the cut (for example, see Patent Document). [PRIOR ART DOCUMENT] [Patent Document 1] [Patent Document 1] Japanese Patent Laid-Open Publication No. Hei 08-283032 [Draft of the Invention] [Problems to be Solved by the Invention] However, the glass cut described in the above Patent Document 1 The apparatus is configured such that when the cutter C abuts against one end surface gl of the glass sheet G, the cutter C does not move vertically upward, and thus the glass sheet G is cracked due to the impact of the abutment or The problem of defects. This problem is particularly noticeable when the glass sheet is thin (less than 3.0 mm). 162778.doc 201245065 The present invention has been made in view of the above circumstances, and an object thereof is to provide a rectangular plate which can be prevented (or reduced) from being abutted against one end surface of a rectangular plate (for example, a glass plate) by a cutter. A cutting device for a rectangular plate having a crack or a defect and a cutter device for the cutting device for the rectangular plate. [Technical means for solving the problem] The present invention provides a cutting device for a rectangular plate member, which is configured such that a cutter positioned at a predetermined cutting depth is formed into a rectangular plate shape with respect to a cutting target The surface of the object moves in parallel to abut against one end surface of the rectangular plate member, and the other end surface facing the opposite side of the rectangular plate member moves toward the surface of the rectangular plate to be cut. a scratch of the starting point, comprising: a cutter head body that supports the cutter to move the cutter to apply a force upwardly to the cutter; the cutting pressure imparting mechanism presses the cutter a surface of the rectangular plate; and a detecting mechanism that detects whether the cutting blade abuts against one end surface of the rectangular plate; and the cutting pressure applying mechanism detects that the cutting blade abuts the In the case of one end face of a rectangular plate, the cutter is pressed against the surface of the rectangular plate. According to the present invention, the cutter is supported such that the cutter moves when a force toward the upper side is applied (for example, in a wrong direction), so that the cutter can be abutted compared to the previous one in which the cutter does not move. Impact on one end face of a rectangular plate. Thereby, a cutting device for a rectangular plate which can prevent or reduce the breakage or defect of the rectangular plate due to the cutter abutting against one end surface of the rectangular plate can be realized. Further, the cutting device for a rectangular plate of the present invention preferably further comprises: 162778.doc -4 · 201245065 a cutter arm that supports the cutter via a cutter holder and has a base end side The center is pivotally slidably attached to the head body; and the contact is electrically connected to the cutter branch (4) by abutting against the cutter branch (4) which swings downward under the action of its own weight. And limiting the swing of the cutter support arm to the vertical downward; and the detecting mechanism detects the energization state between the cutter flap and the contact point, wherein the cutting pressure imparting mechanism detects the predetermined one in the detecting mechanism In the case of the energized state, the cutter is pressed against the surface of the rectangular plate. According to the cutting device for a rectangular plate of the present invention, when the cutter moving parallel to the surface of the rectangular plate abuts against one end face of a rectangular plate (for example, a glass plate), the cutter support arm The rectangular plate member is relatively pushed up by the action of the abutting rectangular plate member, and swings vertically upward from the base end portion side. Thereby, the cutter reaches the surface of one side of the rectangular plate from the end face side of the rectangular plate without receiving the load of the cutting force applying mechanism. By this, the impact of the cutter is abutted against one end face of the rectangular plate. Moreover, when it is detected that the cutter reaches the surface of the rectangular plate (that is, the detection mechanism detects a predetermined energization state), the cutter is first pressed against the rectangle by the action of the cutting and pressing mechanism. The surface of the plate (ie, imparting a cut). As described above, according to the cutting device for a rectangular plate of the present invention, the impact of the cutter abutting against one end face of the rectangular plate can be alleviated as compared with the case where the cutter does not move. By this, it is possible to realize a cutting device for a rectangular plate which can prevent (or reduce) cracks or defects of the rectangular plate due to the cutter being abutted against one end surface of the rectangular plate. Further, in the cutting device for a rectangular plate according to the present invention, it is preferable that the head body is formed with a vertical hole extending in a vertical direction from a lower surface in a vertical direction and communicating with the vertical hole. An air passage, further comprising: an air source connected to the air passage via a solenoid valve; a piston disposed in the vertical bore; and a control mechanism for supplying air from the air source to the vertical hole via the air passage The solenoid valve is controlled to be disposed, and the cutter support arm is disposed under the vertical direction of the piston so as to be abutted against the piston that is pressed downward by the air supplied to the vertical hole. When the detection means detects a predetermined energization state, the control means controls the solenoid valve to supply air to the vertical hole from the air source via the air passage, and the piston is supplied to the vertical hole. Under the action of air, it is pressed down vertically downward to abut against the cutter support arm, so that the cutter support arm swings vertically downward. Thereby, the cutter is pressed against the surface of the rectangular plate. According to the cutting device for a rectangular plate of the present invention, when the cutter moving parallel to the surface of the rectangular plate abuts against one end face of a rectangular plate (for example, a glass plate), the cutter support arm The rectangular plate member is relatively pushed up by the action of the abutting rectangular plate member, and swings vertically upward from the base end portion side. Thereby, the cutter reaches the surface of one of the rectangular plates from the end face side of the rectangular plate without being subjected to the load of the cutting and pressing mechanism. Thereby, the impact of the cutter against the end surface of one of the rectangular plates is alleviated. Moreover, when it is detected that the cutter reaches the surface of the rectangular plate (that is, the detection mechanism detects a predetermined energized state), the cutter is first pressed against the rectangular plate by the action of the piston. Surface (ie, imparting a cut). 162778.doc 201245065 As described above, the cutting device for a rectangular plate according to the present invention can alleviate the impact of the cutter abutting against one end face of the rectangular plate as compared with the case where the cutter does not move. Thereby, it is possible to realize a cutting device for a rectangular plate which can prevent (or reduce) cracks or defects of the rectangular plate due to the cutter being abutted against one end surface of the rectangular plate. Further, the apparatus for cutting a rectangular plate of the present invention preferably includes: a position detecting mechanism that detects a position of the cutter; and a comparing mechanism that compares a position detected by the position detecting mechanism with a predetermined setting range And the determining means 'determining whether the rectangular plate has cracks based on the comparison result obtained by the comparing means; and the position detecting means detects the time when the detecting means detects a predetermined energization state The position of the cutting blade is the position of one end surface of the rectangular plate member, and the comparing means compares the position of one end surface of the rectangular plate member detected by the position detecting means with a predetermined setting range, and the above determination The mechanism determines whether or not there is a crack in one end surface of the rectangular plate member detected by the position detecting mechanism based on a comparison result obtained by the comparison means. According to the cutting device for a rectangular plate of the present invention, it is possible to prevent (or reduce) cracks or defects of the rectangular plate caused by the cutter abutting against one end surface of the rectangular plate, and to inspect the rectangle A cutting device for a rectangular plate having cracks on one end of the plate. Further, in the cutting device for a rectangular plate according to the present invention, preferably, the position detecting means detects the position of the cutter at the time point as the rectangular plate when the detecting means detects a predetermined energization state. 162778.doc 201245065 The position of the other end surface of the object, the comparing means compares the position of the other end surface of the rectangular plate member detected by the position detecting means with a predetermined setting range, and the determining means is based on the above The comparison result obtained by the comparison means determines whether or not there is a crack in the other end surface of the rectangular plate member detected by the position detecting means. According to the cutting device for a rectangular plate of the present invention, it is possible to prevent (or reduce) cracks or defects of the rectangular plate caused by the cutter abutting against one end surface of the rectangular plate and to inspect the rectangle A cutting device for a rectangular plate having cracks on the other end of the plate. The present invention provides a cutter device that is included in a surface of a rectangular plate of a cut object and cut into a flaw that is a starting point of the cut, and includes: a head body that supports the cutter to make the cutter The cutter moves when a force is applied to the upper side of the ship; and the cutting pressure applying mechanism presses the cutter to the rectangular plate when the cutter abuts against one end surface of the rectangular plate The surface of the object. Thereby, a cutter device suitable for the cutting device of the rectangular plate of the present invention can be realized. Moreover, the cutter device of the present invention preferably includes a cutter support arm that supports the cutter via a cutter holder and is swingably supported by the head body in a vertical direction about a base end side; And a contact point electrically connected to the cutter support arm by abutting against the cutter support arm that swings downward under the action of the self weight, and restricting the swing of the cutter support arm to the vertical downward . Thereby, a cutting device suitable for the rectangular plate of the present invention can be realized. 162778.doc • 8 · 201245065 Knife device. Further, in the cutter device of the present invention, the head main body is formed with a vertical hole as a cylinder extending from a lower surface in a vertical direction from the vertical direction, and is connected to the vertical hole and connected to the air source via a solenoid valve. The air passage further includes a piston disposed in the vertical hole, and is in contact with the piston that is pressed downward by the air supplied to the vertical hole under the vertical direction of the piston. The above-described cutter support arm is disposed in such a manner. Thereby, a cutter device suitable for the cutting device of the rectangular plate of the present invention can be realized. [Effects of the Invention] As described above, according to the present invention, it is possible to provide a rectangular plate capable of preventing (or reducing) cracks or defects of a rectangular plate due to a cutter abutting against one end surface of a rectangular plate. A cutting device for the object and a cutter device for the cutting device of the rectangular plate. [Embodiment] Hereinafter, a glass cutter according to an embodiment of the present invention will be described with reference to the drawings. [Outline of Glass Cutting Machine ίο] Fig. 8 is an explanatory view of a general manufacturing procedure of a glass plate. As shown in Fig. 8, a glass plate for a flat panel display (for example, a glass plate for a liquid crystal display (LCD), a glass plate for a PDP (plasma display panel), and an organic EL (Electro Luminescence electroluminescent) display or glass plate for organic el planar light source) is generally manufactured by the following steps, etc. · Cutting step P1, and manufacturing 162778.doc 201245065 into a special thickness of the glass plate to a specific size; In the chamfering step p2, chamfering the end surface of the cut glass plate with grinding stone or grinding stone; cleaning 'drying step P3, cleaning the chamfered glass plate' to dry; and measuring step P4 The shape of the glass plate after the washing and drying is measured. The glass cutter 10 is provided in the cutting step ρι in the above step. The figure is used to illustrate the moving direction of the cutter device 12. As shown in FIG. ,, the glass plate 20 of the object to be cut is a rectangular glass plate (for example, the number of lengths m×the number of widths m×the thickness is about several mm), and is conveyed by a known conveying mechanism (not shown) and clamped. It is placed on the platform 22 of the glass cutter 10 (see Fig. 2(a)). Further, the preferred size of the tangential glass plate 2 is processed by the glass cutter 10 to have a thickness of 0.1 to 3.0 mm. FIGS. 2(a) to 2(d) are used to illustrate the cutter support arm 12f. The map of the action. As shown in Figs. 2(a) to 2(d), the glass cutter 10 is configured such that the cutter 12h positioned at a predetermined cutting depth h is parallel to the surface of the glass sheet 20 by using a well-known lifting mechanism or the like. That is, it moves in the direction of the arrow (see FIG. 2(a)), and abuts against one end surface 20a of the glass plate 20 (see FIG. 2(b)). Further, the cutter 12h is moved in the state of being pressed against the glass sheet 20 and further moved toward the other end surface 20b on the opposite side of the glass sheet 2 (see FIGS. 2(c) and 2(d)), and is placed on the glass. The surface of the plate 20 is cut into a flaw (tangent line) which is the starting point of the cut. [Configuration of Glass Cutting Machine 10] Fig. 3 is a system configuration diagram of the glass cutting machine 10. As shown in FIGS. 1 and 3, the glass cutter 10 includes four cutter devices 12χ丨 to 12γ2 and four cutter drive mechanisms 14X丨 to 14丫2 disposed corresponding to four sides of the glass plate 20, and further Package 162778.doc •10- 201245065 includes control device 16, memory device 18, etc. for controlling such. [Configuration of Cutter Device 12Χ丨~12丫2] A configuration diagram of the circular 4-system cutter device 12. As shown in Fig. 4, each of the cutter devices 12X1 to 12γ2 includes a head main body 12a, and the head main body 12a is formed with a vertical hole 12a2 as a cylinder extending from the lower surface 12al in the vertical direction (i.e., vertically above). The air passage 12a3 of the vertical hole 12a2. A piston 12c is disposed in the vertical hole 12a2 via a sliding sleeve. The working gas source 12e is connected to the air passage 12a3 via the solenoid valve 12d. When the control device 16 controls the opening of the electromagnetic valve I2d, the air of the predetermined pressure is supplied from the air source 12e through the air passage 12a3 to the vertical hole 12a2, and the air is vertically lowered downward by the action of the air. The piston 12c is pressed, and the tip end (the supported roller 12ci) abuts against the cutter support arm 12f', and the cutter support arm 12f is biased to swing downward (see Fig. 2(b)). Thereby, the cutter 12h is pressed against the surface of the glass plate 20. The cutter support arm 12f is disposed vertically below the piston 12c so as to be in contact with the piston 12c (the roller i2cl supported at the tip end thereof) which is pressed downward by the action of the air supplied to the vertical hole 12a2. The shaft 12fl on the proximal end side of the cutter support arm 12f is supported by a bearing 12a4 fixed to the head body 12a. In other words, the cutter supporting arm 12f is swingably supported by the head main body 12a in the slanting direction about the shaft 12f 1 on the proximal end side. The shaft 12gl of the cutter holder 12g is supported by a bearing 12f2 fixed to the cutter support arm 12f. That is, the cutter holder 12g is rotatably supported by the cutter support arm I62778.doc 201245065 1 2f centering on the shaft 12gl in a direction parallel to the surface of the glass sheet 20. The effect shown below can be obtained by rotatably supporting the cutter holder 1 2g. When the shaft 12gl of the cutter holder 12g is attached to the bearing 12f2, even if the traveling direction of the cutter 12h does not coincide with the traveling direction of the cutter device 12, the cutter 12h is brought into contact with the surface of the glass sheet 20 to cut. When the knife device 12 travels, the traveling direction of the cutter I2h can be corrected to the same direction as the traveling direction of the cutter device 12. The cutter 12h is, for example, a disc-shaped cutter wheel (or a cutting blade), and is supported by the cutter holder 12g in a state in which at least a part thereof protrudes downward from the lower end of the cutter holder 12g. The protruding portion is pressed against the surface of the glass sheet 20 (refer to Fig. 2(b)). The cutter support arm 12f swings downward from the shaft 12 fl due to its own weight, and abuts against the joint i2i fixed to the head main body 12a (see Fig. 2(a)). By this, the contact 12i is electrically connected to the cutter support arm 12f, and the swing of the cutter support arm 12f to the downward direction is restricted. The head main body 12a, the cutter support arm 12f, and the contact 12i are each made of a conductive material such as metal. Further, the head main body 12a is electrically connected to the cutter supporting arm I2f. However, since the contact 12i is surrounded by the insulating material 12il such as synthetic resin, it is electrically insulated from the head main body 12a. [Configuration of the cutter drive mechanism 14χ1, 12χ2] The devices 12Χ1 and 12Χ2 are slidably and movably attached to, for example, two guide structures (not shown) extending in the X direction (see FIG. 1) and arranged at a fixed interval. The cutter device 12 γ i, 12 γ 2 is, for example, two guide members (not shown) that are slidably and movably disposed in the Y direction (see FIG. 1 ) and disposed at a fixed interval. 162778.doc 12 201245065
圖3所示之切刀驅動機構M 置…鳴沿著於X方向(參：圖一 -參‘、、'圖〖）延伸之導向構件（未圖 不）而於X方向線性運動之機 你或+ # 且包含周知之升降機構。 作為切刀驅動機構14丨 π ^ φ 1 4x2，例如可使用包含連結於切 2x2之於χ方向延伸之滾珠螺桿、及用以使 珠螺桿旋轉之伺服馬達（均未圖q等之魏機構。同 樣地’切刀驅動機構14γ1、14γ2為用以分別使切刀裝置 H…沿著於γ方向（參照叫延伸之導向構件而於γ方 向線!·生運動之機構’且包含周知之升降機構。作為切刀驅 動機構14Υ1、14Υ2，例如可使用例如包含連結於切刀裝置 12Y1、UY2之於γ方向延伸之滾珠螺桿、&用以使該滾珠 螺桿旋轉之伺服馬達（均未圖示）等之祠服機構。 圖3及圖4所示之控制裝置16包含Mpu(Micr〇 pr〇cess〇r Unit，微處理器）或CPU(Central pr〇cessing Unh，中央處 理器）等運算、控制機構，且作為藉由該運算、控制機構 執行記憶裝置18中所讀入之特定程式而以切刀裝置12χ丨〜 12 η自原點位置移動至指令位置之方式控制各伺服馬達之 控制機構發揮功能。 又’控制裝置16作為檢測切刀支撐臂12f(與頭本體12a電 性連接）與接點12i之間之通電狀態之通電狀態檢測機構i6a 發揮功能。由於頭本體12a、切刀支撐臂12f及接點12i分別 由金屬等導電材料構成，故而於切刀支撐臂12f抵接於接 點12i之情形時’控制裝置16檢測出切刀支撐臂12f與接點 12i之間之通電狀態為「通電」。另一方面，於解除切刀支 162778.doc •13· 201245065 撐臂12f與接點i2i之抵接之情形時，控制裝置16檢測出切 刀支撐臂12f與接點12i之間之通電狀態為「非通電」。 又，控制裝置16亦作為根據切刀支撐臂12f與接點12i之 間之通電狀態而對電磁閥12d進行開閉控制之電磁閥控制 機構發揮功能》 圖3所示之記憶裝置18為RAM(Random Access Memory， 隨機存取記憶體）等記憶裝置，且預先存儲有預先決定之 設定範圍（例如，無裂痕之正常之玻璃板之端面之位置±數 毫米之範圍）等。 [玻璃切斷機1 0之動作例1 ] 其次，一面參照圖5 —面對上述構成之玻璃切斷機1 〇之 動作例1進行說明。圖5係用以說明玻璃切斷機1 〇之動作例 1之流程圖。以下之處理主要藉由控制裝置16執行讀入至 記憶裝置18之特定程式而實現。 於以下之處理中，切折對象之玻璃板20預先定位載置於 平台22上》 首先’控制裝置16使用周知之升降機構使切刀12h於圖4 中之箭頭方向升降，且定位於預先決定之切入深度h(參照 圖2(a))。與此同時’以使各切刀裝置12χι〜ΐ2Υ2(之切刀 12h)自原點位置移動至指令位置之方式控制各伺服馬達（步 驟S10)。 各伺服馬達依照來自控制裝置16之控制而旋轉，而使滾 珠螺桿旋轉。藉此，各切刀裝置12X1、12X2自原點位置沿 著於X方向延伸之導向構件而於X方向（相互對向之方向。 I62778.doc -14 - 201245065 參照圖1)滑動移動。同樣地，各切刀裝置丨2γι、丨2γ2自原 點位置沿著於Υ方向延伸之導向構件而於γ方向（相互對向 之方向。參照圖1)滑動移動。於此期間，各切刀裝置12χ丨〜 12YS之切刀支撐臂i2f因自重而抵接於接點12i(參照圖 2(a))。 於在X方向移動之各切刀裝置12χι、12χ2之切刀l2h抵接 於玻璃板20之一端面20a、20b之情形時，各切刀裝置 12X1、12xz之切刀支撐臂12f藉由該抵接之玻璃板2〇而被相 對性地上推’而以軸12fl為中心向鉛垂上方擺動。藉此， 各切刀裝置12X1、12X2之切刀12h不承受活塞12c之負載而 自玻璃板20之一端面20a、20b侧到達至玻璃板20表面（參 照圖2(b))。與此同時，解除切刀支撐臂i2f與接點i2i之抵 接。 同樣地’於在γ方向移動之各切刀裝置丨2γι、丨2γ2之切 刀12h抵接於玻璃板2〇之一端面20c、20d之情形時，各切 刀裝置12Y1、12Y2之切刀支撐臂I2f藉由該抵接之玻璃板2〇 而被相對性地上推，而以軸12fl為中心向鉛垂上方擺動。 藉此，各切刀裝置12Y1、12Y2之切刀12h不承受活塞i2c之 負載而自玻璃板20之一端面20a、20b側到達至玻璃板2〇表 面（參照圖2(b)) »與此同時，解除切刀支撐臂i2f與接點i2i 之抵接。 於解除各切刀裝置ΐ2χΐ〜12γ2之切刀支撐臂l2f與接點H 之抵接之情形時’控制裝置16檢測出切刀支樓臂12ί•與接 點12i之間之通電狀態為「非通電」（步驟S12、Sl4 :是）。 162778.doc -15- 201245065 控制裝置16於檢測出切刀支撐臂i2f與接點I2i之間之通 電狀態為「非通電」之情形（步驟S14:是）時，以自空氣 源12e經由空氣通路12a3向縱孔12a2供給預先決定之壓力 之空氣之方式控制電磁閥12d(步驟S16)。 若向縱孔12a2供給空氣，則活塞i2c藉由該空氣之作用 而被向錯垂下方下壓’而使其前端（所支撐之輥l2cl)抵接 於切刀支撐臂12f，而對該切刀支撐臂〗2f施加向鉛垂下方 擺動之力（參照圖2(b)) »藉此，將切刀i2h按壓於玻璃板20 之表面。即，對切刀12h賦予切壓。 各切刀裝置12Χ1、12χζ於切刀12h按壓於玻璃板20之表面 之狀態下，一面切入於X方向延伸之傷痕一面於X方向滑 動移動（參照圖2(b)及圖2(c))。 同樣地’各切刀裝置12γι、12γ2於切刀i2h按壓於玻璃板 20之表面之狀態下，一面切入於γ方向延伸之傷痕一面於 Y方向滑動移動（參照圖2(b)及圖2(c))。 其次，控制裝置16判定切斷動作是否結束（步驟S18)。 例如，控制裝置16判定各切刀裝置12χ丨〜12γ2是否移動至 才曰7位置（或判定各切刀裝置12χι〜12γ2是否移動預先決定 之距離）’於判疋移動至指令位置之情形（或判定移動有預 先决疋之距離之情形）時，判定切斷動作結束。 ，或者，於如下情形時亦可判定切斷動作結束，即，由於 當各切刀裝置12x1〜12γ2(之切刀12h)到達至玻璃板20之另 端面時，切刀支撐臂12f向鉛垂下方擺動而抵接於接點 12ι(參照圖2(d))，故而檢測出七刀刀支撐们2f與接點⑵之 162778.doc .16- 201245065 間之通電狀態為「通電」。 控制裝置16於判定切斷動作結束之情形（步驟s丨8 :是） 時，以關閉電磁閥12d之方式進行控制（步驟S2〇)。 藉由上述步驟而結束處理。 如以上所說明，根據本實施形態（動作例1)，於在相對 於玻璃板20之表面平行之方向（X方向、γ方向）移動之切刀 12h抵接於玻璃板20之一端面2〇a、20c之情形時，切刀支 撐臂12f藉由該抵接之玻璃板2〇之作用而被相對性上推， 而以基端部側之軸12Π為中心向鉛垂上方擺動。藉此，切 刀12h不承受活塞12C之負載而自玻璃板2〇之一端面2〇a、 20c側到達至玻璃板2〇之表面。藉此’緩和切刀i2h抵接於 玻璃板20之一端面20a、20c時之衝擊。而且，於檢測出切 刀12h到達至玻璃板20之表面之情形（即，檢測出切刀支撐 臂12f與接點12i之間之通電狀態為「非通電」之情形）時， 首先藉由利用空氣之作用而被向錯垂下方下壓之活塞l2c 之作用’而將切刀12h按壓於玻璃板20之表面（即，賦予切 壓）。 如以上所述’根據本實施形態（動作例1 )，於施加有朝 向鉛垂上方之力之情形時，由於切刀12h以移動之方式被 支撐，故而與切刀不移動之先前相比，可緩和切刀12h抵 接於玻璃板2 0之一端面時之衝擊。藉此’可實現能夠防止 (或減少）因切刀12h抵接於玻璃板20之一端面而導致之玻璃 板20之裂痕或缺損之玻璃切斷機1〇。 [玻璃切斷機10之動作例2] 162778.doc 201245065 其人 面參照圖6一面對上述構成之玻璃切斷機10之 動作例2進行說明。圖6係用以說明玻璃切斷機此動作例 2之流程圖。以下之處理主要藉由控制裝置16執行讀入至 記憶裝置18之特定程式而實現。 於以下之處理中，切折對象之玻璃板20預先定位載置於 平台22上。 首先控制裝置1 6使用周知之升降機構將切刀！ 2h定位 於預先決定之切入深度^參照圖2(a))e與此同時，以各切 刀裝置12x1〜12Y2(之切刀12h)自原點位置移動至指令位置 之方式控制各伺服馬達（步驟S3〇)。 各伺服馬達依照來自控制裝置16之控制旋轉而使滾珠螺 桿旋轉。藉此，各切刀裝置12X1、12X2自原點位置沿著於 X方向延伸之導向構件而於X方向（相互對向之方向。參照 圖1)滑動移動。同樣地，各切刀裝置12γι、12γ2自原點位 置沿著於Υ方向延伸之導向構件而於γ方向（相互對向之方 向。參照圖1)滑動移動。於此期間，各切刀裝置12χι〜12γ2 之切刀支撐臂12f因自重而抵接於接點I2i(參照圖2(a))。 於在X方向移動之各切刀裝置12χ丨、12χ2之切刀m抵接 於玻璃板20之一端面20a、20b之情形時，各切刀裝置 12χι、12xz之切刀支撐臂12f藉由該抵接之玻璃板2〇而被相 對性地上推’而以軸12fl為中心向錯垂上方擺動。藉此， 各切刀裝置12X1、12X2之切刀12h不承受活塞i2c之負載而 自玻璃板20之一端面20a、20b側到達至玻璃板2〇表面（參 照圖2(b))。與此同時’解除切刀支撐臂i2f與接點I2i之抵 I62778.doc • 18 · 201245065 接。 同樣地，於在γ方向移動之各切刀裝置12γ丨、12γ2之切 刀12h抵接於玻璃板20之一端面2〇c、20d之情形時，各切 刀裝置12Y1、12Y2之切刀支撐臂12f藉由該抵接之玻璃板2〇 而被相對性地上推，而以軸12Π為中心向鉛垂上方擺動。 藉此’各切刀裝置12Y1、12Y2之切刀i2h不承受活塞12c之 負載而自玻璃板20之一端面2〇a、20b侧到達至玻璃板20表 面（參照圖2(b))。與此同時，解除切刀支撐臂12f與接點12i 之抵接。 於解除各切刀裝置12X1〜12Y2之切刀支撐臂i2f與接點i2i 之抵接之情形時’控制裝置1 6檢測出切刀支撐臂12£與接 點12ι之間之通電狀態為「非通電」（步驟S32、S34 :是）。 與此同時，控制裝置16檢測此時間點之各切刀裝置 12χι~12γ2之切刀I2h之位置（該位置例如自控制裝置16取 得）作為玻璃板20之一端面20a〜20d之位置（步驟S36)» 而且’控制裝置16藉由將該檢測之玻璃板20之一端面 20a〜20d之位置分別與預先決定之設定範圍（例如，預先存 儲於記憶裝置18之無裂痕之正常之玻璃板之端面的位置土 數毫米之範圍）進行比較’而進行玻璃板2〇之裂痕判定（步 驟S38)。 例如’控制裝置16係若該檢測之玻璃板20之一端面 20a〜20d之位置為預先決定之設定範圍外，則判定該檢測 之玻璃板20之一端面2〇a〜2〇d存在裂痕（步驟S38 :否），藉 由顯示警報等而告知該情況（步驟S40)。 162778.doc • 19- 201245065 另一方面，控制裝置16係若該檢測之玻璃板2〇之一端面 20a〜20d之位置為預先決定之設定範圍内，則判定該檢測 之玻璃板20之一端面20a〜2 0d不存在裂痕（步驟S38:是）。 於判定玻璃板20之一端面20a〜20d不存在裂痕之情形（步 驟S38 .是）時’控制裝置16以自空氣源I2e經由空氣通路 12a3向縱孔12a2供給預先決定之壓力之空氣之方式控制電 磁閥12d(步驟S42)。 若向縱孔12a2供給空氣，則活塞12c藉由該空氣之作用 而被向鉛垂下方下壓，從而使其前端（支撐於該前端之輥 12c 1)抵接於切刀支撐臂12f而對該切刀支撐臂12f施加向鉛 垂下方擺動之力（參照圖2(b))。藉此，將切刀12h按壓於玻 璃板20之表面。即，對切刀12h賦予切壓。 各切刀裝置12x丨、12XS於切刀i2h按壓於玻璃板20之表面 之狀態下，一面切入於χ方向延伸之傷痕一面於X方向滑 動移動（參照圖2(b)及圖2(c))。 同樣地，各切刀裝置12yi、12Y2於切刀12h按壓於玻璃板 20之表面之狀態下，一面切入於γ方向延伸之傷痕一面於 Y方向滑動移動（參照圖2(b)及圖2(c)) 〇 其人’控制裝置16判定切斷動作是否結束（步驟S44)。 /如’控制裝置16判定各切刀裳置12x广12Y2是否移動至 ^位置（或判定各切刀裝置12X1〜12Y2是否移動有預先決 足之距離）’於判定移動至指令位置之情形（或判定移動有 預先決疋之距離之情形）時’判定切斷動作結束。 控制裝^晋1 < i、!>· 於判定切斷動作結束之情形（步驟S44 :是） 162778.doc •20- 201245065 時’以關閉電磁閥12d之方式進行控制（步驟S46)。 藉由上述步驟而結束處理。 如以上所說明，根據本實施形態（動作例2)，於在相對 於玻璃板20之表面平行之方向（X方向、γ方向）移動之切刀 12h抵接於玻璃板20之一端面2〇a、20c之情形時，切刀支 撐臂12f藉由該抵接之玻璃板2〇之作用而被相對性地上 推，而以基端部侧之轴12Π為中心向船垂上方擺動。藉 此’切刀12h不承受活塞i2c之負載而自玻璃板2〇之一端面 20a、20c侧到達至玻璃板2〇之表面。藉此’緩和切刀i2h 抵接於玻璃板20之一端面2〇a、20c時之衝擊》而且，於檢 測出切刀12h到達至玻璃板20之表面之情形（即’檢測出切 刀支撐臂12f與接點12i之間之通電狀態為「非通電」之情 形）時，首先藉由利用空氣之作用而被向鉛垂下方下壓之 活塞12c之作用，而將切刀i2h按壓於玻璃板2〇之表面 (即，賦予切壓）。 如上所述’根據本實施形態（動作例2)，與切刀不向鉛 垂上方移動（或幾乎不移動）之先前相比，可實現能夠緩和 切刀12h抵接於玻璃板20之·端面20a、20c時之衝擊，從 而相應地防止（或減少）因切刀12h抵接於玻璃板20之一端面 20a、20c而導致之玻璃板20之裂痕或缺損之玻璃切斷機 10。而且，可實現能夠檢測出玻璃板2〇之一端面2〇a、20c 是否存在裂痕之玻璃切斷機10» [動作例2之變形例] 其次’對動作例2之變形例進行說明。 162778.doc -21 - 201245065 亦可代替圖6中之S44〜S46，而進行圖7所示之處理（S48〜 S56)。 若各切刀裝置12Χι〜12Y2(之切刀12h)到達玻璃板2〇之另 一 面’則切刀支撐臂12f向錯垂下方擺動而抵接於接點 12i(參照圖 2(d)) » 於此情形時，控制裝置16檢測出切刀支撐臂】2f與接點 12i之間之通電狀態為「通電」（步驟S4g:是與此同 時’控制裝置16檢測此時間點之各切刀裝置12χι〜12γ2之切 刀12h之位置（該位置例如自控制裝置16取得）作為玻璃板2〇 之另一端面20a~20d之位置（步驟S50)。 而且’控制裝置1 6藉由將該檢測之玻璃板2〇之另一端面 20a〜20d之位置分別與預先決定之設定範圍（例如，預先存 儲於s己憶裝置18之無裂痕之正常之玻璃板之端面的位置土 數毫米之範圍）進行比較，而進行玻璃板2〇之裂痕判定（步 驟S38)。 例如’控制裝置16係若該檢測之玻璃板2〇之另一端面 20a〜20d之位置為預先決定之設定範圍外，則判定該檢測 之玻璃板20之另一端面2〇a〜2〇(1存在裂痕（步驟S52 :否）， 藉由顯示警報等而告知該情況（步驟S54)。 另一方面’控制裝置16係若該檢測之玻璃板20之另一端 面20a〜20d之位置為預先決定之設定範圍内，則判定該檢 測之玻璃板20之另一端面2〇a〜2〇d不存在裂痕（步驟S52 : 是）’且以關閉電磁閥12d之方式進行控制（步驟S56)。 藉由上述步驟而結束處理。 162778.doc •22· 201245065 如以上所說明’根據本變形例（動作例2之變形例），可 實現能夠防止（或減少）因切刀12h抵接.於玻璃板20之一端面 20a 20c而導致之玻璃板2〇之裂痕或缺損，而且能夠檢查 玻璃板20之另一端面2〇b、20d是否存在裂痕之玻璃切斷機 10 ° 其次，對變形例進行說明。 於上述實施形態中，對使用藉由空氣之作用而被向鉛垂 下方下壓之活塞12c作為對切刀支撐臂12f施加向鉛垂下方 擺動之力之切壓賦予機構之例進行了說明，但本發明並不 限定於此《例如亦可使用螺線管閥及其他機構作為切壓賦 予機構。如此一來，無需用以向鉛垂下方下壓活塞12c之 構成（電磁閥12d、空氣源12e等）。 又，於上述實施形態中，對使用電磁閥12d、空氣源 之例進行了說明，但本發明並不限定於此。例如亦可代替 電磁閥12d、空氣源12e，而使用電動氣動調節器 (electropneumatic regulator) 〇 又，於上述實施形態中，對使用滑套12b、輥12ci之例 進行了說明，但本發明並不限定於此。滑套12b、輥12〇 可適當省略。 又，於上述實施形態中，對切刀固持器12g以軸i2gi為 中心可旋轉地支撐於切刀支撐臂12f進行了說明，但本發 明並不限定於此《例如，切刀固持器12g亦可固定支撐於 切刀支撐臂12f。 ' 又，於上述實施形態中，對使各切刀裝置12幻、12 (各 162778.doc -23- 201245065 切刀裝置12Y1、12Y2亦同樣）於相互對向之方向移動之例 (參照圆1)進行了說明，但本發明並不限定於此M列如如 圖9所示，亦可使各切刀裝置12X1、12XS(各切刀裝置 12γι、12Y2亦同樣）於同一方向移動。 又，於上述實施形態中，對使用4個切刀裝置12幻〜12υ2 之例進行了說明，但本發明並不限定於此。例如亦可使 用1個〜3個、或5個以上之切刀裝置。 又，於上述實施形態中，對以切刀支撐臂12£之基端部 側之軸12Π成為行進方向側之方式使各切刀裝置12们〜12^ 移動之例進行了說明（參照圖2(a)〜2(d)),但本發明並不限 定於此。例如’亦可以切刀支撐臂12f之基端部之相反側 之前端部成為行進方向側之方式使各切刀裝置12χ〗〜12γ2移 動。 又’於上述實施形態中’對切折對象之玻璃板2〇為平板 顯示器用玻璃板之例進行了說明，但本發明並不限定於 此°例如，可以汽車用玻璃板、或樹脂板等所有矩形板狀 物為切折對象。 又，於上述實施形態中，對切刀支撐臂12f以基端部側 之軸12Π為中心於鉛垂方向可擺動地支撐於頭本體12&進 行了說明’但本發明並不限定於此（參照圖4) ^例如，切刀 支撐臂12f亦可於鉛垂方向可線性運動地支撐於頭本體 12a。 又，於上述實施形態中，說明了於控制裝置16檢測出切 刀支撐臂12f與接點I2i之間之通電狀態為「非通電」之情 162778.doc -24- 201245065 形時，對切刀m賦予切塵，但本發明並不限定於此。例 如，亦可於控制裝置16檢測出切刀支撐臂12f與接點之 間之通電狀態為「通電」之情形時，對切刀i2h賦 壓。 上述實施形態於所有方面只不過為例示。本發明不應藉 由該等記載而限定性地解釋。本發明可於不脫離其精神或 主要特徵之範圍内以其他各種形態實施。 本申叫案係基於2011年3月4曰提出申請之曰本專利申請 案2011-047922者，其内容以參考之形式併入本文中。 【圖式簡單說明】 圖1係用以說明切刀裝置12之移動方向之圖。 圖2(a)〜2(d)係用以說明切刀支撐臂12f(切刀12h)之動作 之圖》 圖3係玻璃切斷機1〇之系統構成圖。 圖4係切刀裝置12之構成圖。 圖5係用以說明玻璃切斷機1 〇之動作例1之流程圖。 圖6係用以說明玻璃切斷機1 〇之動作例2之流程圖。 圖7係用以說明玻璃切斷機1〇之動作例2(變形例）之流程 圖。 圖8係玻璃板之一般製造步驟之說明圖。 圖9係用以說明切刀裝置12之移動方向（變形例）之圖。 圖10係用以說明先前之玻璃切斷裝置之圖。 【主要元件符號說明】 10 玻璃切斷機 162778.doc -25· 201245065 12 切刀裝置 12χι~12γ2 切刀裝置 12a 頭本體 12a2 縱孔（氣缸） 12a3 空氣通路 12a4 轴承 12b 滑套 12c 活塞 12cl 輥 12d 電磁閥 12e 空氣源 12f 切刀支撐臂 12fl 轴 12f2 轴承 12g 切刀固持器 12gl 軸 12h 切刀 12i 接點 12il 絕緣材料 14χι~14Y2 切刀驅動機構 16 控制裝置 18 記憶裝置 20 玻璃板 162778.doc -26-The cutter drive mechanism M shown in Fig. 3 is set to rotate in the X direction along the guide member (not shown) extending in the X direction (refer to Fig. 1 - reference ', ''〗 〖) Or + # and include a well-known lifting mechanism. As the cutter driving mechanism 14 丨 π ^ φ 1 4x2, for example, a ball screw including a ball screw extending in the χ direction and a servo motor for rotating the bead screw may be used (all of which are not shown in FIG. Similarly, the cutter drive mechanisms 14 γ1 and 14 γ2 are used to respectively cause the cutter device H to follow the γ direction (refer to the guide member that extends in the γ direction line and the movement mechanism) and include a well-known lift mechanism. As the cutter drive mechanisms 14A1, 14A2, for example, a ball screw including a ball screw extending in the γ direction connected to the cutter devices 12Y1 and UY2, and a servo motor for rotating the ball screw (both not shown) can be used. The control device 16 shown in FIG. 3 and FIG. 4 includes operations and control such as Mpu (Micr〇pr〇cess〇r Unit, microprocessor) or CPU (Central pr〇cessing Unh). And a mechanism for controlling the servo motors by moving the cutter devices 12χ丨 to 12n from the origin position to the command position by the calculation and control means executing the specific program read in the memory device 18 The control device 16 functions as an energization state detecting mechanism i6a that detects an energization state between the cutter support arm 12f (electrically connected to the head body 12a) and the contact 12i. The head body 12a and the cutter support The arm 12f and the contact 12i are respectively made of a conductive material such as metal. Therefore, when the cutter support arm 12f abuts against the contact 12i, the control device 16 detects the energization state between the cutter support arm 12f and the contact 12i. On the other hand, when the cutter 162778.doc •13·201245065 is engaged with the contact point i2i, the control device 16 detects the cutter support arm 12f and the contact 12i. The power-on state is "non-energized." The control device 16 also functions as a solenoid valve control mechanism that opens and closes the solenoid valve 12d according to the energization state between the cutter support arm 12f and the contact 12i. The memory device 18 shown is a memory device such as a RAM (Random Access Memory), and is pre-stored with a predetermined setting range (for example, the position of the end face of a normal glass plate without cracks ± [Example of millimeters), etc. [Operation example 1 of glass cutter 10] Next, an operation example 1 of the glass cutter 1 facing the above configuration will be described with reference to Fig. 5. Fig. 5 is for explaining glass. The flow chart of the operation example 1 of the cutting machine 1. The following processing is mainly realized by the control device 16 executing a specific program read into the memory device 18. In the following processing, the glass plate 20 of the object to be folded is pre-positioned. Placed on the platform 22 First, the control device 16 raises and lowers the cutter 12h in the direction of the arrow in Fig. 4 using a well-known lifting mechanism, and is positioned at a predetermined cutting depth h (see Fig. 2(a)). At the same time, each servo motor is controlled such that each of the cutter devices 12χι 2ΐ2Υ2 (the cutter 12h) moves from the origin position to the command position (step S10). Each servo motor rotates in accordance with control from the control unit 16, and the ball screw is rotated. Thereby, each of the cutter devices 12X1 and 12X2 slides in the X direction (the direction opposite to each other from the origin position in the direction of the X direction, I62778.doc -14 - 201245065, see Fig. 1). Similarly, each of the cutter devices 丨2γι and 丨2γ2 slides in the γ direction (the direction opposite to each other, see Fig. 1) from the origin position along the guide member extending in the Υ direction. During this period, the cutter support arm i2f of each of the cutter devices 12A to 12YS abuts on the contact 12i due to its own weight (see Fig. 2(a)). When the cutters l2h of the respective cutter devices 12χ, 12χ2 moving in the X direction abut against one of the end faces 20a and 20b of the glass plate 20, the cutter support arms 12f of the respective cutter devices 12X1 and 12xz are thereby The glass plate 2 is pushed up relative to each other and swings vertically upward around the shaft 12fl. Thereby, the cutters 12h of the cutter units 12X1 and 12X2 reach the surface of the glass sheet 20 from the one end faces 20a and 20b of the glass sheet 20 without receiving the load of the piston 12c (refer to Fig. 2(b)). At the same time, the cutter support arm i2f is released from the contact point i2i. Similarly, when the cutters 12h of the respective cutter devices 丨2γι and 丨2γ2 moving in the γ direction abut against one of the end faces 20c and 20d of the glass plate 2, the cutter supports of the respective cutter devices 12Y1 and 12Y2 The arm I2f is relatively pushed up by the abutting glass plate 2〇, and is swung vertically upward around the shaft 12fl. Thereby, the cutters 12h of the respective cutter devices 12Y1, 12Y2 reach the surface of the glass plate 2 from the one end faces 20a, 20b of the glass plate 20 without receiving the load of the piston i2c (refer to Fig. 2 (b)) » At the same time, the abutment of the cutter support arm i2f and the contact i2i is released. When the cutter support arm l2f of each cutter device ΐ2χΐ to 12γ2 is abutted against the contact H, the control device 16 detects that the power supply state between the cutter arm 12 • and the contact 12i is "non- Power on" (steps S12, S14: Yes). 162778.doc -15- 201245065 When the control device 16 detects that the energization state between the cutter support arm i2f and the contact I2i is "non-energized" (step S14: YES), the air source 12e passes through the air passage. The 12a3 controls the electromagnetic valve 12d so as to supply the air of a predetermined pressure to the vertical hole 12a2 (step S16). When air is supplied to the vertical hole 12a2, the piston i2c is pressed downward by the action of the air, and the tip end (the supported roller 12cl) abuts against the cutter support arm 12f. The blade support arm 2f applies a force to swing downward (see FIG. 2(b)). » Thereby, the cutter i2h is pressed against the surface of the glass plate 20. That is, the cutting blade 12h is given a cutting pressure. Each of the cutter devices 12Χ1 and 12χζ slides in the X direction while being cut by the slit extending in the X direction while the cutter 12h is pressed against the surface of the glass plate 20 (see FIGS. 2(b) and 2(c)). . In the same manner, in the state in which the cutters i2h are pressed against the surface of the glass plate 20, the respective cutter devices 12γ1 and 12γ2 slide in the Y direction while being cut into the flaw extending in the γ direction (see FIGS. 2(b) and 2( c)). Next, the control device 16 determines whether or not the cutting operation is completed (step S18). For example, the control device 16 determines whether each of the cutter devices 12 χ丨 12 12 γ 2 has moved to the position of the 曰 7 (or determines whether each of the cutter devices 12 〜 12 12 γ 2 has moved by a predetermined distance) 'to determine the movement to the command position (or When it is determined that the movement has a predetermined distance, it is determined that the cutting operation is completed. Alternatively, it is also possible to determine the end of the cutting operation in the case where the cutter supporting arms 12f are vertically lowered when the respective cutter devices 12x1 to 12γ2 (the cutter 12h) reach the other end faces of the glass sheets 20. The square swings and abuts on the contact 12 (refer to FIG. 2(d)), so that the energization state between the seven-knife support 2f and the contact (2) of 162778.doc.16-201245065 is detected as "energization". When it is determined that the cutting operation is completed (step s8: YES), the control device 16 performs control so that the electromagnetic valve 12d is closed (step S2). The processing is ended by the above steps. As described above, according to the present embodiment (operation example 1), the cutter 12h that moves in the direction parallel to the surface of the glass sheet 20 (X direction, γ direction) abuts against one end face 2 of the glass sheet 20 In the case of a and 20c, the cutter support arm 12f is relatively pushed up by the action of the abutting glass plate 2, and is swung vertically upward around the shaft 12' on the base end side. Thereby, the cutter 12h does not receive the load of the piston 12C, and reaches the surface of the glass plate 2 from the side faces 2〇a, 20c of the glass plate 2〇. Thereby, the impact when the cutter i2h abuts against one of the end faces 20a, 20c of the glass sheet 20 is moderated. Further, when it is detected that the cutter 12h reaches the surface of the glass sheet 20 (that is, when the energization state between the cutter support arm 12f and the contact 12i is detected as "non-energized"), the first use is utilized. The action of the air is pressed by the action of the piston l2c which is pressed downward to the lower side, and the cutter 12h is pressed against the surface of the glass plate 20 (that is, the cutting pressure is given). As described above, according to the present embodiment (operation example 1), when the force directed upward is applied, since the cutter 12h is supported so as to move, compared with the case where the cutter does not move, The impact of the cutter 12h abutting against one end face of the glass plate 20 can be alleviated. Thereby, it is possible to prevent (or reduce) the glass cutter 1 that can cause cracks or defects of the glass sheet 20 due to the cutter 12h abutting against one end surface of the glass sheet 20. [Operation Example 2 of Glass Cutter 10] 162778.doc 201245065 The operation example 2 of the glass cutter 10 having the above configuration will be described with reference to Fig. 6 . Fig. 6 is a flow chart for explaining the operation example 2 of the glass cutter. The following processing is mainly realized by the control device 16 executing a specific program read into the memory device 18. In the following processing, the glass plate 20 of the cut object is pre-positioned on the platform 22. First, the control device 16 uses a well-known lifting mechanism to cut the knife! 2h is positioned at a predetermined cutting depth. Referring to FIG. 2(a))e, at the same time, each servo motor is controlled such that each cutter device 12x1 to 12Y2 (the cutter 12h) moves from the origin position to the command position ( Step S3)). Each servo motor rotates the ball screw in accordance with the control rotation from the control unit 16. Thereby, each of the cutter devices 12X1 and 12X2 slides in the X direction (the direction opposite to each other, see Fig. 1) from the origin position along the guide member extending in the X direction. Similarly, each of the cutter devices 12γ and 12γ2 slides in the γ direction (the direction opposite to each other. See Fig. 1) from the origin position along the guide member extending in the x direction. During this period, the cutter supporting arm 12f of each of the cutter devices 12χ1 to 12γ2 abuts against the contact I2i due to its own weight (see Fig. 2(a)). When the cutters m of the respective cutter devices 12χ丨, 12χ2 moving in the X direction abut against one of the end faces 20a and 20b of the glass plate 20, the cutter support arms 12f of the respective cutter devices 12χ, 12xz are The abutting glass plate 2 is relatively pushed up and swings upward from the axis 12fl. Thereby, the cutters 12h of the cutter units 12X1, 12X2 reach the surface of the glass sheet 2 from the one end faces 20a and 20b of the glass sheet 20 without receiving the load of the piston i2c (refer to Fig. 2(b)). At the same time, the tool holder arm i2f and the contact point I2i are released. I62778.doc • 18 · 201245065. Similarly, when the cutters 12h of the respective cutter devices 12γ丨 and 12γ2 moving in the γ direction abut against one end faces 2〇c and 20d of the glass plate 20, the cutter supports of the respective cutter devices 12Y1 and 12Y2 The arm 12f is relatively pushed up by the abutting glass plate 2, and is swung vertically upward around the shaft 12A. Thereby, the cutters i2h of the respective cutter devices 12Y1 and 12Y2 reach the surface of the glass sheet 20 from the side faces 2〇a and 20b of the glass sheet 20 without receiving the load of the piston 12c (see Fig. 2(b)). At the same time, the abutment of the cutter support arm 12f and the contact 12i is released. When the cutter support arm i2f of each of the cutter devices 12X1 to 12Y2 is released from contact with the contact point i2i, the control device 16 detects that the power supply state between the cutter support arm 12 and the contact 12 is "non- Power on" (steps S32, S34: YES). At the same time, the control device 16 detects the position of the cutter I2h of each of the cutter devices 12χ12 to 12γ2 at this time point (this position is obtained, for example, from the control device 16) as the position of one of the end faces 20a to 20d of the glass plate 20 (step S36). And the control device 16 separates the positions of one of the end faces 20a to 20d of the glass plate 20 to be determined with a predetermined setting range (for example, an end face of a normal glass plate which is previously stored in the memory device 18 without cracks) The position of the soil is in the range of millimeters, and the comparison is made to determine the crack of the glass plate 2 (step S38). For example, if the position of one end surface 20a to 20d of the glass plate 20 to be inspected is outside the predetermined setting range, it is determined that there is a crack in the end surface 2〇a to 2〇d of the glass plate 20 to be detected ( Step S38: No), the situation is notified by displaying an alarm or the like (step S40). 162778.doc • 19- 201245065 On the other hand, if the position of one of the end faces 20a to 20d of the detected glass plate 2 is within a predetermined setting range, the control device 16 determines one end face of the detected glass plate 20. There is no crack in 20a to 2 0d (step S38: YES). When it is determined that there is no crack in one of the end faces 20a to 20d of the glass sheet 20 (YES in step S38), the control device 16 controls the air supplied from the air source 122 to the vertical hole 12a2 via the air passage 12a3 to the predetermined pressure. The solenoid valve 12d (step S42). When air is supplied to the vertical hole 12a2, the piston 12c is pressed downward by the action of the air, and the tip end (the roller 12c1 supported at the tip end) abuts against the cutter support arm 12f. The cutter support arm 12f applies a force to swing downward (see FIG. 2(b)). Thereby, the cutter 12h is pressed against the surface of the glass plate 20. That is, the cutting blade 12h is given a cutting pressure. Each of the cutter devices 12x and 12XS slides in the X direction while being cut into the surface of the glass plate 20 while the cutter i2h is pressed against the surface of the glass plate 20 (see FIGS. 2(b) and 2(c). ). In the same manner, each of the cutter devices 12yi and 12Y2 slides in the Y direction while being cut into the flaw extending in the γ direction while the cutter 12h is pressed against the surface of the glass plate 20 (see FIGS. 2(b) and 2( c)) The person's control device 16 determines whether or not the cutting operation is completed (step S44). / If the control device 16 determines whether each of the cutters is 12x wide 12Y2 is moved to the position (or determines whether each of the cutter devices 12X1 to 12Y2 is moved by a predetermined distance) 'in the case of determining to move to the command position (or When it is determined that the movement has a predetermined distance, the determination cut operation ends. Control device 1 < i, !>· When it is determined that the cutting operation is completed (step S44: YES) 162778.doc • 20-201245065 When the electromagnetic valve 12d is closed, control is performed (step S46). The processing is ended by the above steps. As described above, according to the present embodiment (operation example 2), the cutter 12h that moves in the direction parallel to the surface of the glass sheet 20 (X direction, γ direction) abuts against one end face 2 of the glass sheet 20 In the case of a and 20c, the cutter supporting arm 12f is relatively pushed up by the action of the abutting glass plate 2, and is swung upward from the ship 12 Π centered on the base end side axis 12Π. By this, the cutter 12h does not receive the load of the piston i2c and reaches the surface of the glass sheet 2 from the side faces 20a, 20c of the glass sheet 2〇. Thereby, the impact of the cutter i2h abutting against one of the end faces 2〇a, 20c of the glass plate 20 is further suppressed, and the case where the cutter 12h reaches the surface of the glass plate 20 is detected (ie, the cutter support is detected) When the energization state between the arm 12f and the contact 12i is "non-energized", first, the cutter i2h is pressed against the glass by the action of the piston 12c which is pressed downward by the action of the air. The surface of the plate 2 (ie, the cutting pressure). As described above, according to the present embodiment (operation example 2), it is possible to alleviate the contact end of the cutter 12h against the glass plate 20 as compared with the case where the cutter does not move vertically (or hardly moves) upward. The impact at 20a, 20c, thereby correspondingly preventing (or reducing) the glass cutter 10 which is cracked or missing due to the cutter 12h abutting against one of the end faces 20a, 20c of the glass sheet 20. Further, it is possible to realize a glass cutter 10» capable of detecting whether or not one end surface 2〇a, 20c of the glass sheet 2 is cracked. [Modification of the operation example 2] Next, a modification of the operation example 2 will be described. 162778.doc -21 - 201245065 The processing shown in Fig. 7 (S48 to S56) can also be performed instead of S44 to S46 in Fig. 6. When each of the cutter devices 12Χ1 to 12Y2 (the cutter 12h) reaches the other side of the glass plate 2', the cutter support arm 12f swings downward and falls against the contact 12i (refer to Fig. 2(d)) » In this case, the control device 16 detects that the energization state between the cutter support arm 2f and the contact 12i is "energized" (step S4g: at the same time) the control device 16 detects each of the cutter devices at this point in time. The position of the cutter 12h of 12χι 1212γ2 (this position is obtained, for example, from the control device 16) is the position of the other end faces 20a-20d of the glass plate 2 (step S50). Moreover, the control device 16 detects the The positions of the other end faces 20a to 20d of the glass plate 2 are respectively performed in a predetermined setting range (for example, a range of a few millimeters in the position of the end face of the normal glass plate which is not cracked in the sigma device 18). For comparison, the crack determination of the glass plate 2 is performed (step S38). For example, the control device 16 determines that the position of the other end faces 20a to 20d of the detected glass plate 2 is outside a predetermined setting range. The other end face of the glass plate 20 is detected 2〇a 2〇(1 There is a crack (step S52: NO), and the situation is notified by displaying an alarm or the like (step S54). On the other hand, the control device 16 is the other end faces 20a to 20d of the glass plate 20 to be inspected. When the position is within a predetermined setting range, it is determined that the other end faces 2〇a to 2〇d of the detected glass sheet 20 are free from cracks (step S52: YES) and control is performed by closing the electromagnetic valve 12d (step S56) The processing is terminated by the above-described steps. 162778.doc • 22· 201245065 As described above, according to the present modification (the modification of the operation example 2), it is possible to prevent (or reduce) the contact with the cutter 12h. a crack or a defect of the glass plate 2 caused by one end surface 20a 20c of the glass plate 20, and a glass cutter capable of inspecting whether the other end faces 2〇b, 20d of the glass plate 20 are cracked 10° Next, In the above-described embodiment, the piston 12c that is pressed downward by the action of the air is used as a cutting pressure applying mechanism that applies a force to the cutter support arm 12f to swing downward. Example is explained However, the present invention is not limited to this. For example, a solenoid valve and other mechanisms may be used as the cutting pressure applying mechanism. Thus, there is no need to configure the piston 12c to be lowered downward (the solenoid valve 12d, the air source). In the above embodiment, an example in which the electromagnetic valve 12d and the air source are used has been described. However, the present invention is not limited thereto. For example, instead of the electromagnetic valve 12d and the air source 12e, electric power may be used. In the above embodiment, an example in which the sliding sleeve 12b and the roller 12ci are used has been described. However, the present invention is not limited thereto. The sliding sleeve 12b and the roller 12A can be omitted as appropriate. Further, in the above-described embodiment, the cutter holder 12g is rotatably supported by the cutter support arm 12f around the axis i2gi. However, the present invention is not limited thereto. For example, the cutter holder 12g is also It can be fixedly supported by the cutter support arm 12f. Further, in the above-described embodiment, an example in which each of the cutter devices 12 is imaginary and 12 (the same is true for each of the 162778.doc -23-201245065 cutter devices 12Y1 and 12Y2) is moved in the direction opposite to each other (refer to circle 1). Although the description has been made in the present invention, as shown in Fig. 9, the cutter units 12X1 and 12XS (the cutter units 12γ1 and 12Y2 are also the same) can be moved in the same direction. Further, in the above embodiment, an example in which four cutter devices 12 to 12 to 12 are used has been described, but the present invention is not limited thereto. For example, one to three or five or more cutter devices can be used. Further, in the above-described embodiment, the example in which each of the cutter devices 12 to 12^ is moved so that the shaft 12' on the proximal end side of the cutter support arm 12 is moved toward the traveling direction side (refer to FIG. 2) (a) to 2 (d)), but the present invention is not limited thereto. For example, the respective cutter devices 12 to 12 γ2 may be moved so that the front end portion of the cutter support arm 12f is on the opposite side and the front end portion is on the traveling direction side. In the above-described embodiment, the glass plate 2 of the object to be cut is an example of a glass plate for a flat panel display. However, the present invention is not limited thereto. For example, a glass plate for an automobile or a resin plate may be used. All rectangular plates are cut objects. Further, in the above-described embodiment, the cutter support arm 12f is supported by the head main body 12& swinging in the vertical direction about the shaft 12Π on the proximal end side; however, the present invention is not limited thereto ( Referring to Fig. 4) ^ For example, the cutter support arm 12f can also be supported by the head body 12a in a linear motion in the vertical direction. Further, in the above-described embodiment, the case where the control device 16 detects that the energization state between the cutter support arm 12f and the contact I2i is "non-energized" is 162778.doc -24-201245065. m imparts dust cutting, but the present invention is not limited thereto. For example, when the control device 16 detects that the energization state between the cutter support arm 12f and the contact is "energized", the cutter i2h can be pressed. The above embodiments are merely illustrative in all respects. The invention should not be construed as being limited by the description. The present invention may be embodied in other various forms without departing from the spirit or essential characteristics thereof. This application is based on the present patent application 2011-047922 filed on March 4, 2011, the content of which is hereby incorporated by reference. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view for explaining the moving direction of the cutter device 12. 2(a) to 2(d) are views for explaining the operation of the cutter support arm 12f (cutter 12h). Fig. 3 is a system configuration diagram of the glass cutter 1〇. 4 is a configuration diagram of the cutter device 12. Fig. 5 is a flow chart for explaining the operation example 1 of the glass cutter 1 . Fig. 6 is a flow chart for explaining an operation example 2 of the glass cutter 1 . Fig. 7 is a flow chart for explaining an operation example 2 (modified example) of the glass cutter 1 . Fig. 8 is an explanatory view showing a general manufacturing procedure of a glass plate. Fig. 9 is a view for explaining a moving direction (a modification example) of the cutter device 12. Figure 10 is a view for explaining the prior glass cutting device. [Main component symbol description] 10 Glass cutter 162778.doc -25· 201245065 12 Cutter device 12χι~12γ2 Cutter device 12a Head body 12a2 Vertical hole (cylinder) 12a3 Air passage 12a4 Bearing 12b Sleeve 12c Piston 12cl Roller 12d Solenoid valve 12e Air source 12f Cutter support arm 12fl Shaft 12f2 Bearing 12g Cutter holder 12gl Shaft 12h Cutter 12i Contact 12il Insulation material 14χι~14Y2 Cutter drive mechanism 16 Control device 18 Memory device 20 Glass plate 162778.doc - 26-