Asahi Glass Company, Limited

Akio Imaichi

Hiroshi Yamakawa

Junji Hori

Takashi Hirotsu

Akira Sugahara

Tatsuo Yajima

The present invention relates to a heating apparatus for glass-sheet-forming, which prevents formation of a heater distortion in a portion of a glass sheet facing to a temperature-distributing heat shield. A heating apparatus for glass-sheet-forming comprising a heating element for heating a glass sheet, a heat-shielding plate for partitioning a heating region Y into a plurality of regions X and partially shielding radiant heat rays radiated from the heating element toward the glass sheet so as to form a predetermined temperature distribution on a surface of the glass sheet heated by the heating element, wherein the heating apparatus for glass-sheet-forming further comprises an auxiliary heat-shielding plate for partially shielding radiant heat rays radiated from a heating element toward a portion of the surface of the glass sheet, that faces to the heat-shielding plate, as a heat-ray-adjusting means for reducing radiant heat rays from the heating element reaching a portion of the surface of the glass sheet that faces to the temperature-distributing heat shield.

Heating apparatus for glass-sheet-forming and a bending method for a glass sheet

The present invention relates to a method or an apparatus for bending a plate-like material such as a glass sheet for a side window having a double-curved surface for automobiles wherein the positioning of support frame and forming mold is performed with high precision. There are a forming step for placing a glass sheet on a forming support frame and pressing the glass sheet placed thereon against a forming surface of forming mold to bend the glass sheet and a conveyance step for transferring the formed glass sheet onto a conveyance support frame (the forming support frame can be used as a conveyance support frame) for conveying the glass sheet wherein the forming step includes a forming position correcting step for correcting a displacement of press position with respect to the forming support frame and a forming mold at the time of pressing the glass sheet against the forming mold, and the conveyance step includes a transfer position correcting step for correcting a displacement of transfer position of the glass sheet with respect to the forming mold and the conveyance support frame at the time of transferring the formed glass sheet onto the conveyance support frame.

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Tokyo, Japan

Akio Imaichi