SHEET GLASS, METHOD FOR MANUFACTURING SHEET GLASS, AND DEVICE FOR MANUFACTURING SHEET GLASS

摘要

Provided is a method of manufacturing a glass sheet, which involves forming a scribe (S) in one surface of a glass sheet (G) having a rectangular shape on a periphery of an edge portion (Ga) of the glass sheet (G) in parallel to the edge portion (Ga), and cutting the glass sheet (G) along the scribe (S) as a boundary, the method including: forming the scribe (S) in a region other than both end portions of the glass sheet (G) in a direction along the edge portion (Ga); and cutting the glass sheet (G) so that a maximum stress is generated at a corner portion (Gb) of the glass sheet (G) in a region on an inner side of an imaginary extension straight line connected to the scribe (S).

主权项

1. A method of manufacturing a glass sheet, which involves forming a scribe in one surface of a mother glass sheet having a rectangular shape on a periphery of an edge portion of the mother glass sheet in parallel to the edge portion, and cutting the mother glass sheet along the scribe as a boundary, the method comprising:
forming the scribe in a region other than both end portions of the mother glass sheet in a direction along the edge portion; and cutting the mother glass sheet so that a maximum stress is generated at a corner portion of the mother glass sheet in a region on an inner side of an imaginary extension straight line connected to the scribe.