Method and device for the bending of glass sheets
AssigneeSaint-Gobain Vitrage
InventorsMarco Muller, Karl-Josef Olfisch, Hans-Werner Kuster, Claude Didelot
Life of this patent
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Abstract
A method and device for the bending, on a frame, at least one glass sheet by gravity includes two bending steps. The glass sheets are first supported at their periphery along a first peripheral line by a rough bending device during the first step and along a second peripheral line by a definitive bending device during the second step. Transfer of the glass sheets from the first peripheral line to the second peripheral line is performed by positively and continuously regulating a position of at least one of the rough and definitive bending devices in reaction to forces generated on the at least one of the rough and definitive bending devices by contact with the glass sheet.
Claims16
A method of gravity bending at least one glass sheet, heated to the deformation temperature thereof, comprising the steps of:
- a first gravity bending step of causing the glass sheet to bend to to a rough form while supporting the sheet by a rough bending device acting on the sheet along a first peripheral line;
- a second gravity bending step of causing the glass sheet to bend to to a definitive form while supporting the sheet by a definitive bending device acting on the sheet along a second peripheral line;
- and
- between said first and second gravity bending steps, transferring support of the glass sheet from the first peripheral line to the second peripheral line by positively and continuously regulating a position of at least one of said rough and definitive bending devices in reaction to forces generated on said at least one of said rough and definitive bending devices by contact with the glass sheet.
A device for gravity bending at least one glass sheet, heated to the deformation temperature thereof, comprising:
- a rough bending frame for supporting the sheet along a first peripheral line;
- a definitive bending frame for supporting the sheet along a second peripheral line;
- and
- means for transferring support of the glass sheet from the first periheral line to the second peripheral line by positively and continuously regulating a position of at least one of said rough and definitive bending frames in reaction to forces generated on said at least one of said rough and definitive bending frames by contact with the glass sheet.
A device for gravity bending at least one glass sheet, heated to the deformation temperature thereof, comprising:
- a rough bending frame for supporting the sheet along a first peripheral line;
- a definitive bending frame for supporting the sheet along a second peripheral line;
- and
- means for transferring support of the glass sheet from the first peripheral line to the second peripheral line by positively and continuously regulating a position of at least one of said rough and definitive bending frames in reaction to forces generated on said at least one of said rough and definitive bending frames by contact with the glass sheet, wherein said means for transferring comprises a pivoting and balanced mounting of one of said rough and definitive bending frames with respect to the other of said rough and definitive bending frames.
A device for gravity bending at least one glass sheet, heated to the deformation temperature thereof, comprising:
- a rough bending frame for supporting the sheet along a first peripheral line;
- a definitive bending frame for supporting the sheet along a second peripheral line;
- and
- means for transferring support of the glass sheet from the first peripheral line to the second peripheral line by positively and continuously regulating a position of at least one of said rough and definitive bending frames in reaction to forces generated on said at least one of said rough and definitive bending frames by contact with the glass sheet, wherein said means for transferring comprises means for mounting said rough and definitive bending frames to permit tilting of the mean plane of one of said rough and definitive bending frames with respect to the mean plane of the other of said rough and definitive bending frames in reaction to forces generated on said at least one of said rough and definitive bending frames by contact with the glass sheet.
A method of gravity bending at least one glass sheet, heated to the deformation temperature thereof, comprising the steps of:
- a first gravity bending step of causing the glass sheet to bend to a rough form while supporting the sheet by a rough bending device acting on the sheet along a first peripheral line;
- a second gravity bending step of causing the glass sheet to bend to a definitive form while supporting the sheet by a definitive bending device acting on the sheet along a second peripheral line;
- and
- between said first and second gravity bending steps, transferring support of the glass sheet from the first peripheral line to the second peripheral line by positively and continuously regulating a position of at least one of said rough and definitive bending devices in reaction to forces generated on said at least one of said rough and definitive bending devices by contact with the glass sheet by permitting tilting of the mean plane of one of said rough and definitive bending frames with respect to the mean plane of the other of said rough and definitive bending frames in reaction to forces generated on said at least one of said rough and definitive bending frames by contact with the glass sheet.
Dependencies are inferred from the claim text.