Method and Device for Producing Bent Glass Bodies, and Glass Body Produced by the Method

Abstract

A glass body with at least one curve is formed from a glass blank in bar form in a bending device for bending the glass blanks. The bending device has grippers which are movable in relation to one another. The glass blank is taken up by the grippers and clamped. Subsequently, the bending region between the grippers is heated up to a bending temperature by heating means. After that, the grippers are moved in a predetermined way, the bending region being freely bent. The advantageous effects of the invention are seen as being that any desired curves can be produced on glass blanks without requiring moulds that rely on pressing or contact. The free bending takes place without touching the surface in the heated-up bending region, so that instances of damage to the surface are avoided. This allows curved glass bodies with good optical properties to be produced.

Dependencies are inferred from the claim text.