Cutting method for plate glass mother material
AssigneeHoya Corporation
InventorsKeisuke Yoshikuni, Shogo Tsukada
Life of this patent
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Abstract
The present invention is directed to a method of cutting glass mother material involving preparing the plate glass mother material in which a plurality of grooves are scribed, disposing the plate glass mother material with the grooves turned inward; and pressing an outer surface of the plate glass mother material with a cushioning member having a thickness not to be protruded downward from a lowermost portion of an indenter, with the cushioning member being attached onto an under surface of an indenter base excluding the indenter, pressing a portion opposite to the groove on the outer surface with the indenter having a stretched shape, and cutting the plate glass mother material.
Claims8
A method of cutting a plate glass mother material, comprising the steps of:
- preparing the plate glass mother material in which a plurality of grooves are scribed on one main surface;
- disposing said plate glass mother material with said grooves turned inward;
- and
- pressing an outer surface of said plate glass mother material with a cushioning member having a thickness not to be protruded downward from a lowermost portion of an indenter, said cushioning member being attached onto an under surface of an indenter base excluding said indenter, pressing a portion opposite to a groove on said outer surface with said indenter having a stretched shape, and cutting said plate glass mother material.
Dependencies are inferred from the claim text.