Asahi Glass Company, Limited

Toshimitsu Sato

Isao Saito

Takashi Hirotsu

Ryo Kanno

Tomohiro Suwa

Kenji Maeda

Jun Saito

Ken Nomura

Nozomi Otsubo

Yoichi Nemugaki

Takaaki Fukai

Tomohiro Hoshino

Youichi Nemugaki

Ryou Kanno

The present invention relates to a method and an apparatus for bending a glass sheet, and has an object of achieving high forming accuracy of a glass sheet along a perpendicular direction perpendicular to a conveying direction of the glass sheet, in particular, to obtain high forming accuracy both along the conveying direction and the perpendicular direction. An apparatusfor bending a glass sheet for bending a heated glass sheet G while the glass sheet G is conveyed in a conveying direction X by a roller conveyercomprising a plurality of conveying rollers; the apparatuscomprising a plurality of straight rollers that are arranged upper and lower positions across a conveying surface for the glass sheet G and not curved on the conveying surface, and a plurality of curving rollersarranged upper and lower positions across the conveying surface for the glass sheet G on adjacently downstream side of the straight rollersand curvable along a perpendicular direction Y in the conveying surface so as to bend the glass sheet G along the perpendicular direction Y.

Method and apparatus for bending a glass sheet

There are the steps of conveying a glass plate by a roller conveyor including a plurality of rollers; and moving a roller in contact with the glass plate in conveyance to position the glass plate so as to conform a posture of the glass plate to a reference posture.

Method of positioning a glass plate using pivoting rollers

Method for positioning a glass plate on rollers

A glass sheet is heated to a forming temperature in a heating furnace, the heated glass sheet is conveyed along a conveying plane defined by a plurality of rollers of a roller conveyer, and is moved up and down on the rollers according to a position of the glass sheet to curve a part of the conveying plane with respect to a glass sheet conveying direction to bend the glass sheet to have a desired curvature by its own weight. The rollers are curved rollers.

Apparatus having a curved roller for bending a glass sheet

There is provided a plate-shaped member positioning apparatus comprising a conveyor for conveying a plate-shaped member, a positioner for contact with a front end of a conveyed plate-shaped member, a moving unit for moving the positioner along a conveyance direction of the plate-shaped member, and a controller for controlling operations of the conveyor and the moving unit; wherein the controller moves the plate-shaped member in the conveyance direction with the positioner kept in contact with the front end of the plate-shaped member, decelerates an advancing speed of the plate-shaped member and positions the plate-shaped member at a certain standby position.

Plate-shaped member positioning apparatus and glass sheet bending apparatus

A glass sheet is heated to a forming temperature in a heating furnace, the heated glass sheet is conveyed along a conveying plane defined by a plurality of rollers of a roller conveyer, and is moved up and down on the rollers according to the position of the glass sheet to curve a part of the conveying plane with respect to the glass sheet conveying direction to bend the glass sheet to have a desired curvature by its own weight. The rollers are curved rollers.

Growing community of inventors

Aichi, Japan

Toshimitsu Sato