| 摘要 |
This device (1) for cutting a reinforced glass plate (W) is provided with: a masking unit (2) for masking a front end portion and a rear end portion of the reinforced glass plate (W) on the line to be cut (L) in order to prevent those portions from being irradiated with laser light (C), said front end portion and rear end portion being the front end and rear end of the reinforced glass plate (W) in the direction of movement when the reinforced glass plate (W) moves; a processing table (3) on which the masked reinforced glass plate (W) is placed; an initial crack forming unit (21) that forms an initial crack (10) near the mask of the front end portion of the reinforced glass plate (W) on the line to be cut (L) in the direction of movement; a laser irradiation unit (4) that irradiates the reinforced glass plate (W) with the laser light (C); a coolant injection unit (5) that injects a coolant (R) onto the reinforced glass plate (W); and moving means (6) for moving the reinforced glass plate (W) in a preset direction with respect to the laser irradiation unit (4) and the coolant injection unit (5). |
