| 摘要 |
An initial crack (6a) is formed along a planned cutting line (5) on a plate-like glass (G) supported by means of a supporting member (2, 8) from the rear surface side. Subsequently, the initial crack (6a) penetrates to the rear surface from the front surface and spreads by means of the stress generated as a result of locally heating the plate-like glass (5) along the planned cutting line (5) and cooling said heated region. Then, when cutting the entire plate-like glass (G), the plate-like glass (G) is supported by means of the supporting member (2, 8) from the rear surface side with an elastic sheet (E) exhibiting a low thermal conductivity disposed between the plate-like glass (G) and the supporting member (2, 8). |
