Patent ID: 9650279
Date: 2017-05-16
CPC Classifications: B60J,C03B

Claim:
1. A furnace for bending panes, comprising: a pre-bending ring, a movable bending ring holder, a final bending ring, a preheating region for preheating at least one pane on the pre-bending ring on the movable bending ring holder configured to pre-bend the pane to 5% to 50% of a final bend of an edge of the a least one pane at a softening temperature, a pre-bending region with a first vertically displaceable, bent suction device, comprising at least a counter framework with a bent contact surface as well as a cover surrounding the counter framework with an air baffle for a further bending of the pre-bent pane, wherein the bent suction device is configured to bend the pre-bent pane from 102% to 130% of the final bend of the edge, a heating region for a final bending of the edge of the at least one pane on the final bending ring on the movable bending ring holder and for a surface pre-bending of the at least one pane by thermal irradiation, a second bending region with a second vertically displaceable suction device and a horizontally displaceable, bent counter mold configured for a further surface bending of the at least one pane, and a cooling region.