Abstract: The present invention relates to a device for bending at least one glass pane, having a lower bending mould with a working surface that is suitable for influencing the shape of at least one glass pane, an upper shaping tool arranged opposite the working surface that is suitable for generating a positive pressure on the surface of the at least one glass pane facing away from the working surface, where the upper shaping tool has a hollow space with at least one opening oriented toward the lower bending mould and a membrane closing the opening and is equipped with means for introducing a gas into the hollow space in order to deform the membrane in the direction of the lower bending mould and to thus generate the positive pressure.

Abstract: The present invention relates to a device and method for bending at least one glass pane. The device includes: a gravity bending mould with a supporting surface, which is suitable for arranging at least one glass pane thereon; an upper shaping tool arranged opposite the supporting surface, the upper shaping tool being suitable for producing an overpressure on a surface of the at least one glass pane arranged on the supporting surface, and the surface of the at least one glass pane faces away from the supporting surface. The shaping tool has a cover that forms a hollow space open in the direction of the gravity bending mould and is equipped with a sealing lip arranged on an edge section of the cover for making contact with the surface of the at least one glass pane, and the shaping tool is equipped with means for introducing a gas into the hollow space in order to produce the overpressure.

Abstract: A device and method for bending a glass pane. The device includes a gravity bending mould with a supporting surface, which is suitable for arranging a glass pane thereon; and an upper shaping tool arranged opposite the supporting surface. The upper shaping tool is suitable for producing an overpressure on the top surface of the glass pane arranged on the supporting surface. The top surface faces away from the supporting surface. The shaping tool has a cover that forms a hollow space open in the direction of the gravity bending mould and is equipped with means for introducing a gas into the hollow space in order to produce the overpressure. The hollow space is divided by a separating wall into two subspaces such that a different pressure can be produced in two regions of the surface. The shaping tool is equipped with a common gas feed line, and the separating wall extends to the common gas feed line.

Abstract: A tool for holding at least one glass pane by means of suction in a bending process, comprising a frame-like, convex contact surface and a cover having a peripheral air guide plate that surrounds the contact surface at least in regions is described. The tool is suitable for generating a first, reduced pressure in a first pressure region between the air guide plate and the contact surface; a second pressure in a second pressure region, which is arranged in a central region inside the contact surface, wherein the second pressure is greater than the first pressure.

Abstract: A bending tool for bending at least one glass pane by means of suction, comprising a frame-like convex contact surface and a cover having a peripheral air guide plate that surrounds the contact surface at least in regions is described. The bending tool is suitable for generating a first, reduced pressure in a first pressure region between the air guide plate and the contact surface; a second reduced pressure in a second pressure region. The second pressure is less than the first pressure; and a third pressure in a third pressure region, wherein the third pressure is greater than the first pressure.

Abstract: A vehicle glazing is described. The vehicle glazing has at least one windowpane having a height from 900 mm to 1650 mm, a top upper edge, a side edge of a pillar, a body edge, and two rectangular surfaces A and B. The surface A has an extent of 800 mm*800 mm and the surface B has an extent of 1000 mm*700 mm. Surface A and surface B are centrally bounded by the lowest contact point of the at least one windowpane with the body edge horizontally with respect to the ground, and the lowest contact point and the point of the top upper edge at the shortest distance from the contact point form a Y0 axis and the points at the furthest distance with respect to the width of the windowpane form a Z0 axis.

Abstract: A device for bending panes is described. The device has a pre-bending ring, a movable bending ring holder, a final bending ring, a preheating region for preheating at least one pane, a pre-bending region for a further bending of the at least one pane, a heating region for a final bending of an edge of the at least one pane and for a surface pre-bending of the at least one pane, a second bending region for a further surface bending of the at least one pane and a cooling region.

Abstract: A method for bending a sheet is described. The method includes the following steps: a) at least one sheet is inserted into a pre-bending ring with a movable bending ring holder, the at least one sheet is heated at least to an approximately softening temperature, and the at least one sheet is prebent in the pre-bending ring to 5% to 50% of a final edge bending, b) the pre-bent sheet is lifted out of the pre-bending ring by means of a suction device and is bent further, beyond a bending obtained in the pre-bending ring, c) the at least one sheet is laid down by means of the suction device in a final-bending ring on the movable bending ring holder and the at least one sheet is bent to a final bending, and d) the at least one sheet is cooled down in the final-bending ring and the at least one sheet is bent by means of the suction device to 100% to 130% of an overall final edge bending.

Abstract: A method for bending a sheet is described. The method includes the following steps: a) at least one sheet is inserted into a pre-bending ring with a movable bending ring holder, the movable bending ring holder is moved into a furnace and the at least one sheet is heated to softening temperature and is pre-bent to 5% to 50% of a final edge bending, b) the at least one sheet is lifted by means of a suction device and is bent further, beyond the bending obtained in the pre-bending ring, c) the at least one sheet is laid down by means of the suction device in a final-bending ring on the movable bending ring holder and is bent to the final edge bending, and an area pre-bending of the at least one sheet is performed by means of thermal irradiation, d) the at least one sheet is lifted out of the final-bending ring by means of a second suction device, pressed against an opposing mould and bent, and the at least one sheet is laid down on the final-bending ring and the at least one sheet is cooled down.

Abstract: A vehicle glazing is described. The vehicle glazing has at least one windowpane having a height from 900 mm to 1650 mm, a top upper edge, a side edge of a pillar, a body edge, and two rectangular surfaces A and B. The surface A has an extent of 800 mm*800 mm and the surface B has an extent of 1000 mm*700 mm. Surface A and surface B are centrally bounded by the lowest contact point of the at least one windowpane with the body edge horizontally with respect to the ground, and the lowest contact point and the point of the top upper edge at the shortest distance from the contact point form a Y0 axis and the points at the furthest distance with respect to the width of the windowpane form a Z0 axis.

Abstract: A device for bending panes is described. The device has a pre-bending ring, a movable bending ring holder, a final bending ring, a preheating region for preheating at least one pane, a pre-bending region for a further bending of the at least one pane, a heating region for a final bending of an edge of the at least one pane and for a surface pre-bending of the at least one pane, a second bending region for a further surface bending of the at least one pane and a cooling region.

Abstract: A method for bending a sheet is described. The method includes the following steps: a) at least one sheet is inserted into a pre-bending ring with a movable bending ring holder, the movable bending ring holder is moved into a furnace and the at least one sheet is heated to softening temperature and is pre-bent to 5% to 50% of a final edge bending, b) the at least one sheet is lifted by means of a suction device and is bent further, beyond the bending obtained in the pre-bending ring, c) the at least one sheet is laid down by means of the suction device in a final-bending ring on the movable bending ring holder and is bent to the final edge bending, and an area pre-bending of the at least one sheet is performed by means of thermal irradiation, d) the at least one sheet is lifted out of the final-bending ring by means of a second suction device, pressed against an opposing mould and bent, and the at least one sheet is laid down on the final-bending ring and the at least one sheet is cooled down.

Abstract: A method for bending a sheet is described. The method includes the following steps: a) at least one sheet is inserted into a pre-bending ring with a movable bending ring holder, the at least one sheet is heated at least to an approximately softening temperature, and the at least one sheet is prebent in the pre-bending ring to 5% to 50% of a final edge bending, b) the pre-bent sheet is lifted out of the pre-bending ring by means of a suction device and is bent further, beyond a bending obtained in the pre-bending ring, c) the at least one sheet is laid down by means of the suction device in a final-bending ring on the movable bending ring holder and the at least one sheet is bent to a final bending, and d) the at least one sheet is cooled down in the final-bending ring and the at least one sheet is bent by means of the suction device to 100% to 130% of an overall final edge bending.