GLASS SUBSTRATE POSITIONING APPARATUS, POSITIONING METHOD, EDGE PLANE POLISHING APPARATUS AND EDGE PLANE POLISHING METHOD

摘要

A glass substrate positioning apparatus is provided with a catching member (3) which can abut to one side (2a (2c)) of a glass substrate (2); and a pressing member (4) which can abut to other side (2b(2d)) parallel to the side (2a(2c)) and presses and moves the glass substrate (2) to a side of the catching member (3). The apparatus positions the glass substrate (2) by interactions between the catching member (3) and the pressing member (4). The catching member (3) is permitted to move by following movement of the glass substrate (2) being pressed, then, the glass substrate (2) is positioned by having as a reference an amount of displacement of the side (2b(2d)) of the glass substrate (2) caused when the glass substrate is moved by being pressed by the pressing member (4) in a status where the side (2a(2c)) of the glass substrate (2) is permitted to abut to the catching member (3).