JP7492680B2 - Glass plate breaking device and method for manufacturing glass plate - Google Patents

Glass plate breaking device and method for manufacturing glass plate Download PDF

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JP7492680B2
JP7492680B2 JP2020200333A JP2020200333A JP7492680B2 JP 7492680 B2 JP7492680 B2 JP 7492680B2 JP 2020200333 A JP2020200333 A JP 2020200333A JP 2020200333 A JP2020200333 A JP 2020200333A JP 7492680 B2 JP7492680 B2 JP 7492680B2
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glass plate
product portion
pressing
scribe line
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JP2022088082A (en
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浩 柿木
貴裕 茗原
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Nippon Electric Glass Co Ltd
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Nippon Electric Glass Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
    • C03B33/023—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor the sheet or ribbon being in a horizontal position
    • C03B33/033—Apparatus for opening score lines in glass sheets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Description

本開示は、ガラス板の折割装置およびガラス板の製造方法に関する。 This disclosure relates to a glass sheet breaking device and a glass sheet manufacturing method.

周知のように、ガラス板の製造工程は、製品ガラス板の元となるガラス板から製品には不要となる部位（以下、非製品部と表記）を分断した上で、分断後の非製品部を廃棄する工程を含む場合が多い。同工程を実行する形態の一例としては、特許文献１に開示されるような形態が挙げられる。 As is well known, the manufacturing process of glass sheets often includes a step of separating the portions of the glass sheet that are no longer needed for the product (hereinafter referred to as non-product portions) from the original glass sheet that will become the product glass sheet, and discarding the separated non-product portions. One example of a form for carrying out this process is disclosed in Patent Document 1.

同文献に開示された形態では、まず、後に製品ガラス板となる部位（以下、製品部と表記）と非製品部との境界に沿ってスクライブ線が形成されたガラス板について、当該ガラス板をスクライブ線に沿って折り割る。その後、折り割りに伴って製品部と分断された非製品部を廃棄するために、当該非製品部を回収する。 In the embodiment disclosed in the document, first, a glass plate on which a scribe line is formed along the boundary between the portion that will later become the product glass plate (hereinafter referred to as the product portion) and the non-product portion is folded and broken along the scribe line. After that, the non-product portion that is separated from the product portion as a result of folding and breaking is collected and discarded.

上記の形態の実行にあたっては、図１２及び図１３に示すような折割装置１００が使用される。なお、図１２はガラス板Ｇの折り割り前の状態を示し、図１３は折り割り後の状態を示している。折割装置１００は、製品部Ｇａと非製品部Ｇｂとの境界に沿って上面Ｇｓ側にスクライブ線Ｓが形成されたガラス板Ｇを保持する保持部材２００と、保持部材２００に保持されたガラス板Ｇを下面Ｇｔ側から押圧することで、スクライブ線Ｓの形成部に対して曲げ応力を作用させ、ガラス板Ｇをスクライブ線Ｓに沿って折り割る折割部材３００と、折割部材３００による折り割りに伴って製品部Ｇａと分断された非製品部Ｇｂを回収する回収部材４００とを備えている。 In carrying out the above embodiment, a bending and splitting device 100 as shown in Figs. 12 and 13 is used. Fig. 12 shows the state of the glass sheet G before bending and splitting, and Fig. 13 shows the state after bending and splitting. The bending and splitting device 100 includes a holding member 200 that holds the glass sheet G on which a scribe line S is formed on the upper surface Gs side along the boundary between the product portion Ga and the non-product portion Gb, a bending and splitting member 300 that applies bending stress to the portion where the scribe line S is formed by pressing the glass sheet G held by the holding member 200 from the lower surface Gt side, thereby bending and splitting the glass sheet G along the scribe line S, and a recovery member 400 that recovers the product portion Ga and the non-product portion Gb that is separated by bending and splitting by the bending and splitting member 300.

保持部材２００は、ガラス板Ｇの製品部Ｇａおよび非製品部Ｇｂをそれぞれ下面Ｇｔ側から支持する第一載置台５００および第二載置台６００と、製品部Ｇａおよび非製品部Ｇｂをそれぞれ上面Ｇｓ側から押える第一押え部材７００および第二押え部材８００とを備えている。折割部材３００は、ガラス板Ｇの厚み方向（Ｚ方向）に沿った移動が可能であると共に、両載置台５００，６００の相互間でガラス板Ｇの押圧が可能である。回収部材４００は、分断後の非製品部Ｇｂを回収するために当該非製品部Ｇｂの上面Ｇｓを吸着する吸着パッド９００を備えている。 The holding member 200 includes a first mounting table 500 and a second mounting table 600 that support the product portion Ga and the non-product portion Gb of the glass plate G from the bottom surface Gt, respectively, and a first pressing member 700 and a second pressing member 800 that press the product portion Ga and the non-product portion Gb from the top surface Gs, respectively. The splitting member 300 can move along the thickness direction (Z direction) of the glass plate G, and can press the glass plate G between the two mounting tables 500, 600. The recovery member 400 includes a suction pad 900 that adsorbs the top surface Gs of the non-product portion Gb in order to recover the non-product portion Gb after splitting.

第一押え部材７００および第二押え部材８００は、それぞれスクライブ線Ｓが延びる方向（Ｙ方向）に沿って長尺に形成されている。吸着パッド９００は、回収部材４００に複数が備わっており、複数の吸着パッド９００が、スクライブ線Ｓが延びる方向に沿って並べられている。 The first pressing member 700 and the second pressing member 800 are each formed long along the direction in which the scribe line S extends (Y direction). The recovery member 400 is provided with a plurality of suction pads 900, which are arranged along the direction in which the scribe line S extends.

第二押え部材８００と各吸着パッド９００は、いずれもガラス板Ｇの非製品部Ｇｂに対して上面Ｇｓ側から接触するが、両者８００，９００の間では、非製品部Ｇｂと接触する領域の位置が異なっている。詳述すると、スクライブ線Ｓが延びる方向から観察したときに（Ｙ方向から観察したときに）、第二押え部材８００と非製品部Ｇｂとが接触する接触領域Ａ１（図１２に太線で表示）と、吸着パッド９００と非製品部Ｇｂとが接触する接触領域Ａ２（図１３に太線で表示）とが、非製品部Ｇｂの幅方向（Ｘ方向）にて横並びとなるように位置している。なお、接触領域Ａ２は、接触領域Ａ１に比べてスクライブ線Ｓ寄り（製品部Ｇａと非製品部Ｇｂとの境界寄り）に位置している。 The second pressing member 800 and each suction pad 900 contact the non-product portion Gb of the glass plate G from the upper surface Gs side, but the positions of the areas in contact with the non-product portion Gb are different between the two 800 and 900. In more detail, when observed from the direction in which the scribe line S extends (when observed from the Y direction), the contact area A1 (shown by a thick line in FIG. 12) where the second pressing member 800 contacts the non-product portion Gb and the contact area A2 (shown by a thick line in FIG. 13) where the suction pad 900 contacts the non-product portion Gb are positioned so as to be side-by-side in the width direction (X direction) of the non-product portion Gb. Note that the contact area A2 is located closer to the scribe line S (closer to the boundary between the product portion Ga and the non-product portion Gb) than the contact area A1.

特開２０１８－１５４５１４号公報JP 2018-154514 A

しかしながら、上記の折割装置１００を使用した場合には、ガラス板Ｇにおける非製品部Ｇｂの幅（Ｘ方向に沿った寸法）が狭いときに、ガラス板Ｇの折割不良が発生しやすいという問題があった。これは、上述した接触領域Ａ１と接触領域Ａ２とが非製品部Ｇｂの幅方向にて横並びに位置する関係上、非製品部Ｇｂの幅が狭い場合には、非製品部Ｇｂ上にて接触領域Ａ１と接触領域Ａ２との双方を確保することが困難なことに起因している。 However, when the above-mentioned bending and breaking device 100 is used, there is a problem that the bending and breaking of the glass sheet G is likely to occur when the width (dimension along the X direction) of the non-product portion Gb of the glass sheet G is narrow. This is because the above-mentioned contact area A1 and contact area A2 are positioned side by side in the width direction of the non-product portion Gb, and when the width of the non-product portion Gb is narrow, it is difficult to secure both contact area A1 and contact area A2 on the non-product portion Gb.

以上の事情に鑑みて解決すべき技術的課題は、折り割りによりガラス板から非製品部を分断するに際し、非製品部の幅が狭い場合であっても、折割不良の発生を防止できるようにすることである。 In light of the above, the technical problem to be solved is to prevent defective bending when dividing a non-product part from a glass sheet by bending, even if the width of the non-product part is narrow.

上記の課題を解決するためのガラス板の折割装置は、製品部と非製品部との境界に沿って一方面側にスクライブ線が形成されたガラス板を保持する保持部材と、保持部材に保持されたガラス板を他方面側から押圧することで、スクライブ線の形成部に対して曲げ応力を作用させ、ガラス板をスクライブ線に沿って折り割る折割部材と、折割部材による折り割りに伴って製品部と分断された非製品部を回収する回収部材とを備え、保持部材が、ガラス板の保持のために非製品部を押える押え部を有し、回収部材が、非製品部の回収のために非製品部を吸着する吸着部を有し、押え部と吸着部との両者が、ガラス板の同一面側から非製品部に対して接触するように構成されたガラス板の折割装置であって、スクライブ線が延びる方向から観察したときに、押え部と非製品部とが接触する第一接触領域の幅と、吸着部と非製品部とが接触する第二接触領域の幅とが、重複するように構成されていることを特徴とする。 The glass plate breaking device for solving the above problem includes a holding member for holding a glass plate on one side of which a scribe line is formed along the boundary between a product portion and a non-product portion, a bending member for pressing the glass plate held by the holding member from the other side to apply bending stress to the portion on which the scribe line is formed, thereby breaking the glass plate along the scribe line, and a recovery member for recovering the non-product portion separated from the product portion as a result of the breaking by the bending member, the holding member having a pressing portion for pressing the non-product portion to hold the glass plate, the recovery member having an adsorption portion for adsorbing the non-product portion to recover the non-product portion, and both the pressing portion and the adsorption portion being configured to contact the non-product portion from the same side of the glass plate, and being configured such that, when observed from the direction in which the scribe line extends, the width of a first contact area where the pressing portion and the non-product portion come into contact overlaps with the width of a second contact area where the adsorption portion and the non-product portion come into contact.

本装置は、スクライブ線が延びる方向から観察したときに、押え部と非製品部とが接触する第一接触領域の幅と、吸着部と非製品部とが接触する第二接触領域の幅とが、重複するように構成されている。このように両接触領域の幅が重複することで、非製品部の幅が狭い場合であっても、非製品部上にて第一接触領域と第二接触領域との双方を容易に確保することが可能となる。その結果、折割不良の発生を防止することができる。さらに、折割不良の発生を防止できることから、ガラス板の生産効率の低下についても回避することが可能である。 When observed from the direction in which the scribe line extends, this device is configured so that the width of the first contact area where the pressing portion and the non-product portion come into contact overlaps with the width of the second contact area where the suction portion and the non-product portion come into contact. By overlapping the widths of both contact areas in this way, it becomes possible to easily secure both the first contact area and the second contact area on the non-product portion even if the width of the non-product portion is narrow. As a result, it is possible to prevent the occurrence of folding defects. Furthermore, because it is possible to prevent the occurrence of folding defects, it is also possible to avoid a decrease in the production efficiency of the glass sheet.

上記の構成では、保持部材が複数の押え部を有し、回収部材が複数の吸着部を有することが好ましい。 In the above configuration, it is preferable that the holding member has multiple pressing portions and the recovery member has multiple suction portions.

このようにすれば、保持部材が複数の押え部を有することにより、例えば、保持部材が長尺（スクライブ線が延びる方向に沿って長尺）な単一の押え部を有するような場合と比較して、押え部に掛かるコストを削減することが可能となる。また、押え部と吸着部とがそれぞれ複数存在することで、例えば、特定の押え部や吸着部に不具合が生じた場合であっても、その押え部や吸着部のみを交換すれば足りる。そのため、設備コストやメンテナンスコストについても削減することができる。 In this way, by having the holding member have multiple pressing parts, it is possible to reduce the cost of the pressing parts compared to, for example, a case in which the holding member has a single long pressing part (long along the direction in which the scribe line extends). In addition, by having multiple pressing parts and suction parts, for example, even if a malfunction occurs in a particular pressing part or suction part, it is sufficient to replace only that pressing part or suction part. Therefore, equipment costs and maintenance costs can also be reduced.

上記の構成では、スクライブ線が延びる方向から観察したときに、第一接触領域と第二接触領域とのうち、相対的に幅広な領域の幅内に、相対的に幅狭な領域の全幅が収まっていることが好ましい。 In the above configuration, when observed from the direction in which the scribe line extends, it is preferable that the entire width of the relatively narrow region of the first contact region and the second contact region is contained within the width of the relatively wide region.

このようにすれば、相対的に幅広な領域の幅内に、相対的に幅狭な領域の全幅が収まることから、非製品部の幅がより狭い場合であっても、折割不良の発生を防止することが可能となる。 In this way, the total width of the relatively narrow area is contained within the width of the relatively wide area, making it possible to prevent defective folding even when the width of the non-product part is narrower.

上記の構成では、スクライブ線が延びる方向に沿って、第一接触領域と第二接触領域とが交互に並ぶことが好ましい。 In the above configuration, it is preferable that the first contact regions and the second contact regions are arranged alternately along the direction in which the scribe line extends.

このようにすれば、押え部による非製品部の押え、及び、吸着部による非製品部の吸着を安定させることができる。 This allows the pressing of the non-product parts by the pressing part and the suction of the non-product parts by the suction part to be stabilized.

また、上記の課題を解決するためのガラス板の製造方法は、製品部と非製品部との境界に沿って一方面側にスクライブ線が形成されたガラス板を保持する保持工程と、保持工程の実行中に、ガラス板を他方面側から押圧することで、スクライブ線の形成部に対して曲げ応力を作用させ、ガラス板をスクライブ線に沿って折り割る折割工程と、折割工程の実行後に、折り割りに伴って製品部と分断された非製品部を回収する回収工程とを含み、保持工程では、ガラス板の保持のために非製品部を押え、回収工程では、非製品部の回収のために非製品部を吸着し、保持工程での非製品部の押え、及び、回収工程での非製品部の吸着を、非製品部の同一面に対して行うガラス板の製造方法であって、スクライブ線が延びる方向から観察したときに、非製品部のうちの保持工程にて押えられる領域の幅と、非製品部のうちの回収工程にて吸着される領域の幅とが、重複するようにしたことを特徴とする。 A method for manufacturing a glass plate to solve the above problem includes a holding step of holding a glass plate having a scribe line formed on one side along the boundary between a product portion and a non-product portion, a bending step of pressing the glass plate from the other side during the holding step to apply bending stress to the portion where the scribe line is formed, thereby bending the glass plate along the scribe line, and a recovery step of recovering the non-product portion separated from the product portion as a result of the bending step after the bending step is performed, the non-product portion being pressed to hold the glass plate in the holding step, and the non-product portion being sucked to recover the non-product portion in the recovery step, the holding of the non-product portion in the holding step and the sucking of the non-product portion in the recovery step being performed on the same surface of the non-product portion, and the method is characterized in that, when observed from the direction in which the scribe line extends, the width of the region of the non-product portion held in the holding step and the width of the region of the non-product portion sucked in the recovery step overlap.

本方法によれば、上記のガラス板の折割装置について既述の作用・効果と同一の作用・効果を得ることが可能である。 This method makes it possible to obtain the same effects and advantages as those already described for the glass plate breaking device.

本開示に係るガラス板の折割装置およびガラス板の製造方法によれば、折り割りによりガラス板から非製品部を分断するに際し、非製品部の幅が狭い場合であっても、折割不良の発生を防止することが可能である。 According to the glass sheet breaking device and glass sheet manufacturing method disclosed herein, when dividing a non-product portion from a glass sheet by breaking it, it is possible to prevent the occurrence of poor breaking even if the width of the non-product portion is narrow.

ガラス板の折割装置を示す側面図である。FIG. 2 is a side view showing the glass plate breaking device. ガラス板の折割装置を示す正面図である。FIG. 2 is a front view showing the glass plate breaking device. ガラス板の折割装置を示す正面図である。FIG. 2 is a front view showing the glass plate breaking device. 第一接触領域～第三接触領域を示す平面図である。FIG. 2 is a plan view showing the first contact region to the third contact region. ガラス板の製造方法を示す側面図である。FIG. 2 is a side view illustrating a method for manufacturing a glass plate. ガラス板の製造方法を示す側面図である。FIG. 2 is a side view illustrating a method for manufacturing a glass plate. ガラス板の製造方法を示す側面図である。FIG. 2 is a side view illustrating a method for manufacturing a glass plate. ガラス板の製造方法を示す側面図である。FIG. 2 is a side view illustrating a method for manufacturing a glass plate. ガラス板の製造方法を示す側面図である。FIG. 2 is a side view illustrating a method for manufacturing a glass plate. ガラス板の折割装置の変形例において第二押え部および吸着パッドを下から視た状態を示す底面図である。13 is a bottom view showing a second pressing portion and a suction pad as viewed from below in a modified example of the glass plate breaking device. FIG. 変形例における第一接触領域～第三接触領域を示す平面図である。13 is a plan view showing the first contact region to the third contact region in a modified example. FIG. 従来のガラス板の折割装置を示す側面図である。FIG. 1 is a side view showing a conventional glass plate breaking device. 従来のガラス板の折割装置を示す側面図である。FIG. 1 is a side view showing a conventional glass plate breaking device.

以下、実施形態に係るガラス板の折割装置およびガラス板の製造方法について、添付の図面を参照しながら説明する。なお、実施形態の説明で参照する各図面に表示したＸ方向、Ｙ方向、及びＺ方向は、互いに直交する方向である。 The following describes a glass plate breaking device and a glass plate manufacturing method according to an embodiment, with reference to the attached drawings. Note that the X direction, Y direction, and Z direction shown in each drawing referred to in the description of the embodiment are mutually orthogonal.

＜ガラス板の折割装置＞
図１に示したガラス板の折割装置１（以下、単に折割装置１と表記）は、製品部Ｇａと非製品部Ｇｂとの境界に沿ってスクライブ線Ｓが形成されたガラス板Ｇを折り割ることで、両部Ｇａ，Ｇｂを分断すると共に、分断後の非製品部Ｇｂを廃棄のために回収する装置である（図６及び図９を参照）。なお、製品部Ｇａは、後に製品ガラス板となる部位であり、非製品部Ｇｂは、廃棄される部位である。 <Glass plate breaking device>
The glass plate breaking device 1 shown in Fig. 1 (hereinafter simply referred to as the breaking device 1) is a device that breaks a glass plate G having a scribe line S formed along the boundary between a product portion Ga and a non-product portion Gb, thereby dividing the two portions Ga and Gb, and collects the divided non-product portion Gb for disposal (see Figs. 6 and 9). Note that the product portion Ga is a portion that will later become a product glass plate, and the non-product portion Gb is a portion that will be discarded.

折割装置１は、上面Ｇｓ側にスクライブ線Ｓが形成されたガラス板Ｇを保持する保持部材２と、保持部材２に保持されたガラス板Ｇを下面Ｇｔ側から押圧してスクライブ線Ｓに沿って折り割る折割部材３と、折割部材３による折り割りに伴って製品部Ｇａと分断された非製品部Ｇｂを回収する回収部材４とを備えている。 The bending and breaking device 1 includes a holding member 2 that holds a glass sheet G with a scribe line S formed on the upper surface Gs, a bending and breaking member 3 that presses the glass sheet G held by the holding member 2 from the lower surface Gt to bend and break it along the scribe line S, and a recovery member 4 that recovers the product part Ga and the non-product part Gb that is separated as a result of bending and breaking by the bending and breaking member 3.

折り割りの対象となるガラス板Ｇは矩形をなし、スクライブ線Ｓはガラス板Ｇがなす矩形の一辺と平行に直線状に形成されている（本実施形態ではＹ方向に沿って形成）。ガラス板Ｇの厚みは、例えば２ｍｍ以下であり、好ましくは０．２ｍｍ～０．７ｍｍである。ガラス板Ｇの非製品部Ｇｂの幅（Ｘ方向に沿った寸法）は、例えば４５ｍｍ以下であり、好ましくは３５ｍｍ以下であり、より好ましくは２５ｍｍ以下である。一方、ガラス板Ｇの非製品部Ｇｂの幅が狭すぎると、折り割りが困難となることから、下限は１５ｍｍ以上とすることが好ましい。 The glass sheet G to be broken is rectangular, and the scribe line S is formed in a straight line parallel to one side of the rectangle formed by the glass sheet G (in this embodiment, it is formed along the Y direction). The thickness of the glass sheet G is, for example, 2 mm or less, and preferably 0.2 mm to 0.7 mm. The width (dimension along the X direction) of the non-product portion Gb of the glass sheet G is, for example, 45 mm or less, preferably 35 mm or less, and more preferably 25 mm or less. On the other hand, if the width of the non-product portion Gb of the glass sheet G is too narrow, it becomes difficult to break it, so the lower limit is preferably 15 mm or more.

保持部材２は、ガラス板Ｇの製品部Ｇａおよび非製品部Ｇｂをそれぞれ下面Ｇｔ側から支持する第一支持部材５および第二支持部材６と、製品部Ｇａおよび非製品部Ｇｂをそれぞれ上面Ｇｓ側から押える第一押え部材７および第二押え部材８とを備えている。保持部材２は、第一支持部材５と第一押え部材７とで製品部Ｇａを厚み方向に挟むと共に、第二支持部材６と第二押え部材８とで非製品部Ｇｂを厚み方向に挟むことで、ガラス板Ｇを平置き姿勢で保持することが可能である（図５を参照）。 The holding member 2 includes a first support member 5 and a second support member 6 that support the product portion Ga and the non-product portion Gb of the glass sheet G from the bottom surface Gt, respectively, and a first pressing member 7 and a second pressing member 8 that press the product portion Ga and the non-product portion Gb from the top surface Gs, respectively. The holding member 2 is capable of holding the glass sheet G in a flat position by sandwiching the product portion Ga in the thickness direction between the first support member 5 and the first pressing member 7, and sandwiching the non-product portion Gb in the thickness direction between the second support member 6 and the second pressing member 8 (see FIG. 5).

ここで、第一支持部材５および第二支持部材６としては、図１に示した支持台状の部材に限らず、例えばコンベア（ベルトコンベアやローラーコンベア等）を使用しても構わない。具体例を挙げると、搬送方向をＸ方向とし、第二支持部材６を相対的に上流側のコンベアとし、第一支持部材５を相対的に下流側のコンベアとしても構わない。この場合、両コンベアにより、スクライブ線Ｓが折割部材３の上方に位置するようにガラス板Ｇが折割装置１に搬入されると共に、下流側のコンベアにより、分断後の製品部Ｇａが折割装置１から搬出される。或いは、搬送方向をＸ方向とし、第二支持部材６を相対的に下流側のコンベアとし、第一支持部材５を相対的に上流側のコンベアとしても構わない。或いは、搬送方向をＹ方向としても構わない。 Here, the first support member 5 and the second support member 6 are not limited to the support table-like members shown in FIG. 1, and may be, for example, conveyors (belt conveyors, roller conveyors, etc.). As a specific example, the conveying direction may be the X direction, the second support member 6 may be a relatively upstream conveyor, and the first support member 5 may be a relatively downstream conveyor. In this case, the glass sheet G is conveyed into the bending and cutting device 1 by both conveyors so that the scribe line S is located above the bending and cutting member 3, and the product part Ga after cutting is conveyed out of the bending and cutting device 1 by the downstream conveyor. Alternatively, the conveying direction may be the X direction, the second support member 6 may be a relatively downstream conveyor, and the first support member 5 may be a relatively upstream conveyor. Alternatively, the conveying direction may be the Y direction.

第一押え部材７および第二押え部材８は、図１に矢印で示すように、それぞれ上下方向（Ｚ方向）に沿って移動が可能となっている。そして、両押え部材７，８は、下方への移動に伴ってそれぞれ製品部Ｇａおよび非製品部Ｇｂを押える構成となっている。 The first pressing member 7 and the second pressing member 8 can each move in the vertical direction (Z direction) as shown by the arrows in FIG. 1. The pressing members 7 and 8 are configured to press the product portion Ga and the non-product portion Gb, respectively, as they move downward.

第一押え部材７は、製品部Ｇａの上面Ｇｓに接触して当該製品部Ｇａを直接に押える部位である第一押え部７ａを有する。同様にして、第二押え部材８は、非製品部Ｇｂの上面Ｇｓに接触して当該非製品部Ｇｂを直接に押える部位である第二押え部８ａを有する。第一押え部７ａおよび第二押え部８ａの各々は、中心線がＹ方向に延びた円柱状に形成されている。勿論この限りではなく、本実施形態の変形例として、例えば両押え部７ａ，８ａが四角柱状に形成されていてもよい。第一押え部７ａおよび第二押え部８ａは弾性部材で構成され、外力により弾性変形が可能である。第一押え部７ａおよび第二押え部８ａの材質としては、例えばゴム（天然ゴム、合成ゴム等）やスポンジを採用できる。また、本実施形態の変形例として、第一押え部７ａおよび第二押え部８ａをブラシで構成してもよい。 The first pressing member 7 has a first pressing portion 7a which is a portion that contacts the upper surface Gs of the product portion Ga and directly presses the product portion Ga. Similarly, the second pressing member 8 has a second pressing portion 8a which is a portion that contacts the upper surface Gs of the non-product portion Gb and directly presses the non-product portion Gb. Each of the first pressing portion 7a and the second pressing portion 8a is formed in a cylindrical shape with a center line extending in the Y direction. Of course, this is not limited to this, and as a modified example of this embodiment, for example, both pressing portions 7a, 8a may be formed in a square prism shape. The first pressing portion 7a and the second pressing portion 8a are made of an elastic material and can be elastically deformed by an external force. For example, rubber (natural rubber, synthetic rubber, etc.) or sponge can be used as the material of the first pressing portion 7a and the second pressing portion 8a. Also, as a modified example of this embodiment, the first pressing portion 7a and the second pressing portion 8a may be made of a brush.

回収部材４は、分断後の非製品部Ｇｂの上面Ｇｓに接触して当該非製品部Ｇｂを吸着する吸着部としての吸着パッド４ａを有する。この吸着パッド４ａの吸着面は円形をなしている。勿論この限りではなく、本実施形態の変形例として、吸着面は四角形、多角形、楕円形等であってもよい。吸着パッド４ａは、図１に矢印で示すように、上下方向に対して傾斜した方向（以下、傾斜方向と表記）に沿って移動が可能となっている。そして、吸着パッド４ａは、当該傾斜方向に沿って下方へ移動したのち、分断後の非製品部Ｇｂを吸着する構成となっている。なお、当該傾斜方向と上下方向とがなす角度は、１°～３０°が好ましく、１．５°～１５°がより好ましく、２°～１０°が最も好ましい。吸着パッド４ａの非製品部Ｇｂと接触する部位の材質としては、例えばウレタンを採用できる。 The recovery member 4 has a suction pad 4a as an adsorption part that contacts the upper surface Gs of the non-product part Gb after cutting and adsorbs the non-product part Gb. The adsorption surface of the suction pad 4a is circular. Of course, this is not limited to this, and as a modification of this embodiment, the adsorption surface may be rectangular, polygonal, elliptical, etc. The suction pad 4a can move along a direction inclined with respect to the vertical direction (hereinafter referred to as the inclined direction) as shown by the arrow in FIG. 1. The suction pad 4a is configured to move downward along the inclined direction and then adsorb the non-product part Gb after cutting. The angle between the inclined direction and the vertical direction is preferably 1° to 30°, more preferably 1.5° to 15°, and most preferably 2° to 10°. For example, urethane can be used as the material for the part of the suction pad 4a that contacts the non-product part Gb.

なお、上述のごとく傾斜方向に沿って吸着パッド４ａを移動させるのは、下記の理由からである。分断後の非製品部Ｇｂは、折割部材３により端部（分断後の製品部Ｇａと隣接する端部）が持ち上げられた状態となる（図７を参照）。そして、この状態にある非製品部Ｇｂを吸着パッド４ａで吸着することになる。このため、持ち上げに伴って水平面に対して傾いた非製品部Ｇｂの上面Ｇｓと、吸着パッド４ａの吸着面とを可及的に平行にした状態で、吸着パッド４ａを非製品部Ｇｂに接触させれば、円滑な吸着に有利となるからである。 The reason why the suction pad 4a is moved along the inclined direction as described above is as follows. After cutting, the non-product part Gb has its end (the end adjacent to the cut product part Ga) lifted by the breaking member 3 (see FIG. 7). The non-product part Gb in this state is then sucked up by the suction pad 4a. For this reason, if the suction pad 4a is brought into contact with the non-product part Gb while keeping the top surface Gs of the non-product part Gb, which has been tilted relative to the horizontal plane as a result of the lifting, as parallel as possible to the suction surface of the suction pad 4a, this is advantageous for smooth suction.

ここで、本実施形態の変形例として、吸着パッド４ａは、必ずしも上記の傾斜方向に沿って移動が可能でなくてもよい。例えば、吸着パッド４ａは、上下方向に沿って移動が可能であってもよい。 As a modification of this embodiment, the suction pad 4a does not necessarily have to be able to move along the inclined direction. For example, the suction pad 4a may be able to move along the up-down direction.

上記の第二押え部材８および吸着パッド４ａの両者は、共通の移動機構９に搭載されている。移動機構９は、ＸＺ平面に沿って自在に移動することが可能となっている。移動機構９は、分断後の非製品部Ｇｂを吸着した吸着パッド４ａを介して、当該非製品部Ｇｂを廃棄用のコンベア（図示省略）まで運ぶ機能を有する。 The second pressing member 8 and the suction pad 4a are both mounted on a common moving mechanism 9. The moving mechanism 9 is capable of moving freely along the XZ plane. The moving mechanism 9 has the function of transporting the non-product parts Gb after separation to a disposal conveyor (not shown) via the suction pad 4a that has adsorbed the non-product parts Gb.

折割部材３は、Ｙ方向に沿って長尺に形成されると共に、第一支持部材５と第二支持部材６との相互間に配置されている。折割部材３は、図１に矢印で示すように、上下方向に沿って移動が可能となっている。そして、折割部材３は、上方への移動に伴ってガラス板Ｇにおけるスクライブ線Ｓの形成部に対して曲げ応力を作用させ、ガラス板Ｇを折り割る構成となっている。 The breaking and splitting member 3 is formed long along the Y direction and is disposed between the first support member 5 and the second support member 6. The breaking and splitting member 3 is capable of moving along the vertical direction as shown by the arrow in FIG. 1. As the breaking and splitting member 3 moves upward, it applies a bending stress to the portion of the glass sheet G where the scribe line S is formed, thereby breaking the glass sheet G.

折割部材３は、ガラス板Ｇの下面Ｇｔに接触して当該ガラス板Ｇを直接に押圧する押圧面と、押圧面の両側で傾斜した一対の傾斜面とを有する。押圧面は、スクライブ線Ｓを挟んで製品部Ｇａと非製品部Ｇｂとに跨った状態でガラス板Ｇの下面Ｇｔと接触する。押圧面の幅（Ｘ方向に沿った寸法）は、３ｍｍ～１５ｍｍであることが好ましい。また、押圧面と傾斜面とがなす角度は、３０°～５０°であることが好ましい。 The bending member 3 has a pressing surface that contacts the lower surface Gt of the glass sheet G and directly presses the glass sheet G, and a pair of inclined surfaces inclined on both sides of the pressing surface. The pressing surface contacts the lower surface Gt of the glass sheet G while straddling the product portion Ga and the non-product portion Gb with the scribe line S in between. The width of the pressing surface (the dimension along the X direction) is preferably 3 mm to 15 mm. In addition, the angle between the pressing surface and the inclined surface is preferably 30° to 50°.

図２及び図３に示すように、第二押え部８ａおよび吸着パッド４ａは、それぞれ複数が備わっており、複数の第二押え部８ａと複数の吸着パッド４ａとがＹ方向に沿って交互に並べられている。第二押え部８ａと吸着パッド４ａとの両者は、相互に独立して移動（上下動）が可能となっている。複数の第二押え部８ａの相互間では、Ｙ方向に沿った長さが不均一になっているが、均一であってもよい。これにより、隣り合う吸着パッド４ａ，４ａ同士の間隔もまた不均一になっているが、均一であってもよい。 As shown in Figures 2 and 3, there are multiple second pressing portions 8a and multiple suction pads 4a, and the multiple second pressing portions 8a and multiple suction pads 4a are arranged alternately along the Y direction. Both the second pressing portions 8a and the suction pads 4a can move (up and down) independently of each other. The lengths along the Y direction are uneven between the multiple second pressing portions 8a, but may be uniform. As a result, the spacing between adjacent suction pads 4a, 4a is also uneven, but may be uniform.

なお、上述のごとく複数の第二押え部８ａの相互間でＹ方向に沿った長さを不均一にしているのは、下記の目的からである。折り割りの対象となるガラス板Ｇは、種々の規格サイズ（例えば、Ｇ８サイズ、Ｇ８．５サイズ等）に対応した製品部Ｇａを有する。そして、折り割りの対象となるガラス板Ｇがいずれの規格サイズに対応した製品部Ｇａを有する場合でも、当該ガラス板ＧのＹ方向における端部に対しては、吸着パッド４ａではなく、第二押え部８ａが接触するようにする目的である。 The reason why the lengths in the Y direction between the multiple second pressing portions 8a are unequal as described above is for the following purpose. The glass sheet G to be broken has product parts Ga corresponding to various standard sizes (e.g., G8 size, G8.5 size, etc.). And, regardless of which standard size the glass sheet G to be broken has product parts Ga corresponding to, the purpose is that the second pressing portions 8a, not the suction pads 4a, come into contact with the end of the glass sheet G in the Y direction.

ここで、上述のごとく第二押え部８ａは複数が備わっている一方で、第一押え部７ａはＹ方向に沿って長尺に形成された単一の部材でなる。勿論この限りではなく、本実施形態の変形例として、第一押え部７ａが複数の部材からなってもよい。 As described above, the second pressing portion 8a is provided in multiple units, while the first pressing portion 7a is a single member formed in an elongated shape along the Y direction. Of course, this is not the only option, and as a modified example of this embodiment, the first pressing portion 7a may be made up of multiple members.

図４は、ガラス板Ｇを上方から平面視した状態を示す。同図に斜線を施して示す各領域は、第二押え部８ａが非製品部Ｇｂを押える際に両者８ａ，Ｇｂが接触する第一接触領域Ａ１、吸着パッド４ａが非製品部Ｇｂを吸着する際に両者４ａ，Ｇｂが接触する第二接触領域Ａ２、及び、第一押え部７ａが製品部Ｇａを押える際に両者７ａ，Ｇａが接触する第三接触領域Ａ３である。第一接触領域Ａ１～第三接触領域Ａ３は、いずれもガラス板Ｇの上面Ｇｓ上に存する領域である。 Figure 4 shows the glass plate G in a plan view from above. The areas indicated by diagonal lines in the figure are a first contact area A1 where the second pressing portion 8a and the non-product portion Gb come into contact when the second pressing portion 8a presses the non-product portion Gb, a second contact area A2 where the suction pad 4a and the suction pad 4a come into contact when the non-product portion Gb is adsorbed, and a third contact area A3 where the first pressing portion 7a and the suction pad 7a come into contact when the product portion Ga is pressed. The first contact area A1 to the third contact area A3 are all areas that exist on the upper surface Gs of the glass plate G.

上述した複数の第二押え部８ａと複数の吸着パッド４ａとの並びから、第一接触領域Ａ１と第二接触領域Ａ２とは、スクライブ線Ｓが延びる方向（Ｙ方向）に沿って交互に並んだ配置となる。一方、上述した第一押え部７ａの構成から、第三接触領域Ａ３は、スクライブ線Ｓが延びる方向に沿って長尺な単一の領域となる。 Due to the arrangement of the multiple second pressing portions 8a and the multiple suction pads 4a described above, the first contact area A1 and the second contact area A2 are arranged alternately along the direction in which the scribe line S extends (Y direction). On the other hand, due to the configuration of the first pressing portion 7a described above, the third contact area A3 is a single elongated area along the direction in which the scribe line S extends.

第一接触領域Ａ１は略矩形の領域である。これは、第二押え部８ａが非製品部Ｇｂを押える際に、第二押え部８ａがなす円柱の下部が非製品部Ｇｂの上面Ｇｓとの接触に伴って平坦に変形（弾性変形）するためである。同様の理由から、第三接触領域Ａ３についても略矩形の領域である。一方、第二接触領域Ａ２は略円形の領域である。これは、吸着パッド４ａの吸着面が円形であることによる。 The first contact area A1 is a substantially rectangular area. This is because when the second pressing portion 8a presses the non-product portion Gb, the lower part of the cylinder formed by the second pressing portion 8a is deformed flat (elastically deformed) as it comes into contact with the upper surface Gs of the non-product portion Gb. For the same reason, the third contact area A3 is also a substantially rectangular area. On the other hand, the second contact area A2 is a substantially circular area. This is because the suction surface of the suction pad 4a is circular.

スクライブ線Ｓが延びる方向から観察したときに、第二接触領域Ａ２の幅Ｗ２は、第一接触領域Ａ１の幅Ｗ１よりも幅広となっている。そして、第二接触領域Ａ２の幅Ｗ２内に、第一接触領域Ａ１の全幅（幅Ｗ１）が収まっている。本条件が満たされるように、第二押え部８ａおよび吸着パッド４ａのサイズや配置が調節されている。 When observed from the direction in which the scribe line S extends, the width W2 of the second contact area A2 is wider than the width W1 of the first contact area A1. The entire width (width W1) of the first contact area A1 is contained within the width W2 of the second contact area A2. The size and arrangement of the second pressing portion 8a and the suction pad 4a are adjusted so that this condition is met.

ここで、本実施形態の変形例として、複数の第二押え部８ａと複数の吸着パッド４ａとの並びにおいて、第二押え部８ａと吸着パッド４ａとは交互に並んでいなくともよい。つまり、並びの一部で第二押え部８ａが連続してもよいし、吸着パッド４ａが連続してもよい。さらに、第一接触領域Ａ１の幅Ｗ１と第二接触領域Ａ２の幅Ｗ２との大小関係は、本実施形態とは逆であってもよいし、幅Ｗ１と幅Ｗ２とが等しくてもよい。加えて、両接触領域Ａ１，Ａ２のうちの一方の領域の幅内に、他方の領域の全幅が収まることは必須ではなく、両接触領域Ａ１，Ａ２の少なくとも一部がＸ方向で重複していればよい。 As a modification of this embodiment, the second pressing portions 8a and the suction pads 4a do not have to be arranged alternately in the arrangement of the multiple second pressing portions 8a and the multiple suction pads 4a. In other words, the second pressing portions 8a may be continuous in part of the arrangement, or the suction pads 4a may be continuous. Furthermore, the size relationship between the width W1 of the first contact area A1 and the width W2 of the second contact area A2 may be reversed from this embodiment, or the width W1 and the width W2 may be equal. In addition, it is not essential that the entire width of one of the contact areas A1, A2 is contained within the width of the other area, and it is sufficient that at least a portion of the contact areas A1, A2 overlap in the X direction.

＜ガラス板の製造方法＞
以下、上記の折割装置１を使用したガラス板の製造方法について説明する。本製造方法は、保持工程Ｐ１（図５）と、折割工程Ｐ２（図６）と、回収工程Ｐ３（図７～図９）とを含んでいる。 <Method of manufacturing glass plate>
Hereinafter, there will be described a method for manufacturing a glass plate using the above-mentioned breaking apparatus 1. This manufacturing method includes a holding step P1 (FIG. 5), a breaking step P2 (FIG. 6), and a recovery step P3 (FIGS. 7 to 9).

図５に示すように、保持工程Ｐ１では、スクライブ線Ｓが形成されたガラス板Ｇを保持部材２により保持する。具体的には、第一押え部材７および第二押え部材８をそれぞれ下方に移動させるのに伴って、第一支持部材５および第二支持部材６により下面Ｇｔを支持された状態にあるガラス板Ｇの製品部Ｇａおよび非製品部Ｇｂをそれぞれ上面Ｇｓ側から押える。これにより、ガラス板Ｇを平置き姿勢で保持する。なお、スクライブ線Ｓは、保持工程の実行前に、ホイールカッターやレーザー照射等によりガラス板Ｇに形成したものである。 As shown in FIG. 5, in the holding step P1, the glass sheet G on which the scribe line S is formed is held by the holding member 2. Specifically, as the first holding member 7 and the second holding member 8 are moved downward, the product portion Ga and the non-product portion Gb of the glass sheet G, whose lower surface Gt is supported by the first supporting member 5 and the second supporting member 6, are pressed from the upper surface Gs side, respectively. This holds the glass sheet G in a flat position. The scribe line S is formed on the glass sheet G by a wheel cutter, laser irradiation, or the like, before the holding step is performed.

図６に示すように、折割工程Ｐ２では、ガラス板Ｇを下面Ｇｔ側から押圧してスクライブ線Ｓに沿って折り割る。具体的には、ガラス板Ｇを保持部材２で保持した状態の下、折割部材３を上方に移動させるのに伴って、ガラス板Ｇにおけるスクライブ線Ｓの形成部を持ち上げる。これにより、スクライブ線Ｓの形成部は上面Ｇｓ側が凸となるように変形し、変形に伴って当該形成部に曲げ応力が作用する。この曲げ応力の作用により、スクライブ線Ｓに含まれるメディアンクラックがガラス板Ｇの厚み方向に進展し、ガラス板Ｇが製品部Ｇａと非製品部Ｇｂとに分断される。 As shown in FIG. 6, in the bending process P2, the glass sheet G is pressed from the lower surface Gt side and bent and broken along the scribe line S. Specifically, while the glass sheet G is held by the holding member 2, the bending member 3 is moved upward to lift the portion of the glass sheet G where the scribe line S is formed. This causes the portion where the scribe line S is formed to deform so that the upper surface Gs side becomes convex, and bending stress acts on the portion as it is deformed. Due to the action of this bending stress, the median crack contained in the scribe line S progresses in the thickness direction of the glass sheet G, and the glass sheet G is divided into a product portion Ga and a non-product portion Gb.

図７に示すように、回収工程Ｐ３では、まず、分断後の非製品部Ｇｂを廃棄のために回収する準備として、吸着パッド４ａにより分断後の非製品部Ｇｂを吸着する。具体的には、吸着パッド４ａを下方に移動させ、吸着パッド４ａの吸着面を非製品部Ｇｂの上面Ｇｓに接触させた後、負圧を利用して吸着パッド４ａに非製品部Ｇｂを吸着させる。なお、吸着パッド４ａによる非製品部Ｇｂの吸着は、折割部材３による非製品部Ｇｂの端部（製品部Ｇａと隣接する端部）の持ち上げ、及び、第二押え部材８による非製品部Ｇｂの押えを維持した状態で行うことが好ましい。これは、分断後の製品部Ｇａと非製品部Ｇｂとの接触に起因して、製品部Ｇａの品質が低下することを防止する目的である。このとき、吸着パッド４ａに吸着される非製品部Ｇｂは、その上面Ｇｓが傾いた状態となっている。 As shown in FIG. 7, in the recovery process P3, first, the non-product part Gb after the division is adsorbed by the suction pad 4a in preparation for collecting the non-product part Gb after the division for disposal. Specifically, the suction pad 4a is moved downward, and the suction surface of the suction pad 4a is brought into contact with the upper surface Gs of the non-product part Gb, and then the non-product part Gb is adsorbed to the suction pad 4a using negative pressure. Note that it is preferable that the adsorption of the non-product part Gb by the suction pad 4a is performed while the end of the non-product part Gb (the end adjacent to the product part Ga) is lifted by the splitting member 3 and the second pressing member 8 is holding the non-product part Gb. This is for the purpose of preventing the quality of the product part Ga from deteriorating due to contact between the product part Ga and the non-product part Gb after division. At this time, the upper surface Gs of the non-product part Gb adsorbed to the suction pad 4a is inclined.

上述した吸着パッド４ａによる非製品部Ｇｂの吸着が完了すると、次に、図８に示すように、第二押え部材８を上方に移動させるのに伴って、当該第二押え部材８による非製品部Ｇｂの押えを解除する。なお、この押えを解除する際においても、折割部材３による非製品部Ｇｂの端部の持ち上げは維持させることが好ましい。 When the suction of the non-product part Gb by the suction pad 4a is completed, the second pressing member 8 is then moved upward as shown in FIG. 8, and the pressing of the non-product part Gb by the second pressing member 8 is released. Note that even when releasing the pressing, it is preferable to maintain the lifting of the end of the non-product part Gb by the cleavage member 3.

上述した第二押え部材８による非製品部Ｇｂの押えの解除が完了すると、次に、図９に示すように、移動機構９を上方に移動させるのに伴って、分断後の非製品部Ｇｂを回収する。回収後の非製品部Ｇｂは、移動機構９により廃棄用のコンベアまで運んだ後、当該コンベアにより廃棄場所へと搬送して廃棄する。一方、分断後の製品部Ｇａは、洗浄や検査等を行った上で製品ガラス板とする。以上により、本製造方法が完了する。 When the pressing of the non-product parts Gb by the second pressing member 8 described above is completed, the moving mechanism 9 is then moved upward as shown in FIG. 9 to collect the cut non-product parts Gb. The collected non-product parts Gb are carried to a disposal conveyor by the moving mechanism 9, and then transported to a disposal location by the conveyor for disposal. Meanwhile, the cut product parts Ga are cleaned, inspected, etc., and then turned into product glass plates. This completes the manufacturing method.

以下、上記の折割装置１および製造方法による主たる作用・効果について説明する。 The main functions and effects of the above-mentioned cutting device 1 and manufacturing method are described below.

上記の折割装置１および製造方法では、スクライブ線Ｓが延びる方向（Ｙ方向）から観察したときに、第二押え部８ａと非製品部Ｇｂとが接触する第一接触領域Ａ１の幅Ｗ１と、吸着パッド４ａと非製品部Ｇｂとが接触する第二接触領域Ａ２の幅Ｗ２とが重複する。このように両接触領域Ａ１，Ａ２の幅Ｗ１，Ｗ２が重複することで、非製品部Ｇｂの幅（Ｘ方向に沿った寸法）が狭い場合であっても、非製品部Ｇｂ上にて第一接触領域Ａ１と第二接触領域Ａ２との双方を容易に確保することが可能となる。その結果、ガラス板Ｇの折割不良の発生を防止できる。 In the above-mentioned bending device 1 and manufacturing method, when observed from the direction in which the scribe line S extends (Y direction), the width W1 of the first contact area A1 where the second pressing portion 8a and the non-product portion Gb contact each other and the width W2 of the second contact area A2 where the suction pad 4a and the non-product portion Gb contact each other overlap. By overlapping the widths W1 and W2 of both contact areas A1 and A2 in this way, it is possible to easily secure both the first contact area A1 and the second contact area A2 on the non-product portion Gb even if the width (dimension along the X direction) of the non-product portion Gb is narrow. As a result, it is possible to prevent the occurrence of bending defects in the glass sheet G.

ここで、上記の実施形態で説明した折割装置１および製造方法には、図１０及び図１１に示すような変形例を適用することも可能である。図１０は、第二押え部８ａおよび吸着パッド４ａを下から視た状態を示す底面図である。同図に示すように、上記の実施形態における複数の第二押え部８ａと複数の吸着パッド４ａとに代えて、Ｙ方向に沿って長尺に形成された単一の第二押え部８ａと複数の吸着パッド４ａとを用いてもよい。同変形例では、第二押え部８ａに吸着パッド４ａの数と同数の貫通孔８ａａ（第二押え部８ａを上下に貫通する貫通孔）が形成されている。Ｚ方向から観察したときに、貫通孔８ａａの開口面積は吸着パッド４ａよりも一回り大きくなっている。この貫通孔８ａａ内を吸着パッド４ａが上下動できる構成となっている。同変形例では、図１１に示すように、第一接触領域Ａ１の幅Ｗ１と第二接触領域Ａ２の幅Ｗ２との大小関係が上記の実施形態とは逆（幅Ｗ１＞幅Ｗ２）になると共に、第一接触領域Ａ１の幅Ｗ１内に、第二接触領域Ａ２の全幅（幅Ｗ２）が収まっている。 Here, the bending device 1 and the manufacturing method described in the above embodiment can be modified as shown in Figs. 10 and 11. Fig. 10 is a bottom view showing the second pressing portion 8a and the suction pad 4a viewed from below. As shown in the figure, instead of the multiple second pressing portions 8a and the multiple suction pads 4a in the above embodiment, a single second pressing portion 8a and multiple suction pads 4a formed long along the Y direction may be used. In this modified example, the second pressing portion 8a has the same number of through holes 8aa (through holes that penetrate the second pressing portion 8a vertically) as the number of suction pads 4a. When observed from the Z direction, the opening area of the through hole 8aa is one size larger than that of the suction pad 4a. The suction pad 4a can move up and down within this through hole 8aa. In this modified example, as shown in FIG. 11, the size relationship between the width W1 of the first contact area A1 and the width W2 of the second contact area A2 is the opposite of that in the above embodiment (width W1 > width W2), and the entire width (width W2) of the second contact area A2 is contained within the width W1 of the first contact area A1.

１ 折割装置
２ 保持部材
３ 折割部材
４ 回収部材
４ａ 吸着パッド
８ａ 第二押え部
Ａ１ 第一接触領域
Ａ２ 第二接触領域
Ｇ ガラス板
Ｇａ 製品部
Ｇｂ 非製品部
Ｇｓ 上面
Ｇｔ 下面
Ｐ１ 保持工程
Ｐ２ 折割工程
Ｐ３ 回収工程
Ｓ スクライブ線
Ｗ１ 第一接触領域の幅
Ｗ２ 第二接触領域の幅 REFERENCE SIGNS LIST 1 Breaking device 2 Holding member 3 Breaking member 4 Recovery member 4a Suction pad 8a Second pressing portion A1 First contact area A2 Second contact area G Glass plate Ga Product portion Gb Non-product portion Gs Upper surface Gt Lower surface P1 Holding step P2 Breaking step P3 Recovery step S Scribe line W1 Width of first contact area W2 Width of second contact area

Claims (5)

製品部と非製品部との境界に沿って一方面側にスクライブ線が形成されたガラス板を保持する保持部材と、
前記保持部材に保持された前記ガラス板を他方面側から押圧することで、前記スクライブ線の形成部に対して曲げ応力を作用させ、前記ガラス板を前記スクライブ線に沿って折り割る折割部材と、
前記折割部材による折り割りに伴って前記製品部と分断された前記非製品部を回収する回収部材とを備え、
前記保持部材が、前記ガラス板の保持のために前記非製品部を押える押え部を有し、
前記回収部材が、前記非製品部の回収のために前記非製品部を吸着する吸着部を有し、
前記押え部と前記吸着部との両者が、前記ガラス板の同一面側から前記非製品部に対して接触するように構成されたガラス板の折割装置であって、
前記スクライブ線が延びる方向から観察したときに、前記押え部と前記非製品部とが接触する第一接触領域の幅と、前記吸着部と前記非製品部とが接触する第二接触領域の幅とが、重複するように構成されていることを特徴とするガラス板の折割装置。 a holding member for holding a glass plate having a scribe line formed on one side along the boundary between a product portion and a non-product portion;
a bending/breaking member that applies bending stress to the portion where the scribe line is formed by pressing the glass plate held by the holding member from the other surface side, thereby bending/breaking the glass plate along the scribe line;
a recovery member that recovers the non-product portion separated from the product portion by the folding and splitting member,
The holding member has a pressing portion that presses the non-product portion to hold the glass plate,
The recovery member has an adsorption portion that adsorbs the non-product portion in order to recover the non-product portion,
A glass plate breaking device configured so that both the pressing portion and the suction portion contact the non-product portion from the same side of the glass plate,
A glass plate breaking device characterized in that, when observed from the direction in which the scribe line extends, the width of a first contact area where the pressing portion and the non-product portion come into contact and the width of a second contact area where the suction portion and the non-product portion come into contact are configured to overlap. 前記保持部材が複数の前記押え部を有し、
前記回収部材が複数の前記吸着部を有することを特徴とする請求項１に記載のガラス板の折割装置。 The holding member has a plurality of the pressing portions,
The glass plate breaking apparatus according to claim 1 , wherein the recovery member has a plurality of the suction portions. 前記スクライブ線が延びる方向から観察したときに、前記第一接触領域と前記第二接触領域とのうち、相対的に幅広な領域の幅内に、相対的に幅狭な領域の全幅が収まっていることを特徴とする請求項１又は２に記載のガラス板の折割装置。 The glass sheet breaking device according to claim 1 or 2, characterized in that, when observed from the direction in which the scribe line extends, the entire width of the relatively narrow region of the first contact region and the second contact region is contained within the width of the relatively wide region. 前記スクライブ線が延びる方向に沿って、前記第一接触領域と前記第二接触領域とが交互に並ぶことを特徴とする請求項１～３のいずれかに記載のガラス板の折割装置。 The glass sheet breaking device according to any one of claims 1 to 3, characterized in that the first contact areas and the second contact areas are arranged alternately along the direction in which the scribe lines extend. 製品部と非製品部との境界に沿って一方面側にスクライブ線が形成されたガラス板を保持する保持工程と、
前記保持工程の実行中に、前記ガラス板を他方面側から押圧することで、前記スクライブ線の形成部に対して曲げ応力を作用させ、前記ガラス板を前記スクライブ線に沿って折り割る折割工程と、
前記折割工程の実行後に、折り割りに伴って前記製品部と分断された前記非製品部を回収する回収工程とを含み、
前記保持工程では、前記ガラス板の保持のために前記非製品部を押え、
前記回収工程では、前記非製品部の回収のために前記非製品部を吸着し、
前記保持工程での前記非製品部の押え、及び、前記回収工程での前記非製品部の吸着を、前記非製品部の同一面に対して行うガラス板の製造方法であって、
前記スクライブ線が延びる方向から観察したときに、前記非製品部のうちの前記保持工程にて押えられる領域の幅と、前記非製品部のうちの前記回収工程にて吸着される領域の幅とが、重複するようにしたことを特徴とするガラス板の製造方法。 a holding step of holding a glass plate having a scribe line formed on one side along a boundary between a product portion and a non-product portion;
a bending/breaking step of pressing the glass plate from the other surface side during the holding step to apply bending stress to the portion where the scribe line is formed, thereby bending the glass plate along the scribe line;
and a recovery step of recovering the non-product part separated from the product part by the folding and breaking step,
In the holding step, the non-product portion is pressed to hold the glass plate,
In the recovery step, the non-product parts are adsorbed to recover the non-product parts,
A method for manufacturing a glass plate, comprising the steps of: holding the non-product portion in the holding step; and suctioning the non-product portion in the collecting step, the non-product portion being held against the same surface of the non-product portion;
a width of a region of the non-product portion that is pressed in the holding process and a width of a region of the non-product portion that is adsorbed in the recovery process are made to overlap when observed from the direction in which the scribe line extends.
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JP2018090445A (en) 2016-12-02 2018-06-14 日本電気硝子株式会社 Method for manufacturing plate glass and apparatus for breaking plate glass
JP2018154514A (en) 2017-03-16 2018-10-04 日本電気硝子株式会社 Manufacturing method for plate glass and breaking device for plate glass
JP2020176038A (en) 2019-04-22 2020-10-29 日本電気硝子株式会社 Apparatus and method for manufacturing glass plate

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US20100011928A1 (en) 2008-07-16 2010-01-21 Jae-Pil Lee Flat display panel cutting apparatus
JP2018090445A (en) 2016-12-02 2018-06-14 日本電気硝子株式会社 Method for manufacturing plate glass and apparatus for breaking plate glass
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