METHOD FOR MANUFACTURING GLASS PLATE - NIPPON ELECTRIC GLASS CO

Title:

METHOD FOR MANUFACTURING GLASS PLATE

Document Type and Number:

WIPO Patent Application WO/2022/085347

Kind Code:

A1

Abstract:

According to the present invention, a concave line RL formed on a mother glass G comprises a protruding section 7a formed in an end section RLa in the width direction Y of the convex line RL. The protruding section 7a includes: a first base section 8a positioned on a central side in the width direction Y of the convex line RL; and a second base section 8b positioned on the opposite side to the first base section 8a. In this method for manufacturing a glass plate, a scratch is caused in at least one among the first base section 8a and the second base section 8b in an initial crack forming step S2.

Inventors:

UCHIDA SETSUO (JP)
NISHIKAWA YOSHINORI (JP)

Application Number:

PCT/JP2021/034549

Publication Date:

April 28, 2022

Filing Date:

September 21, 2021

Export Citation:

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Assignee:

NIPPON ELECTRIC GLASS CO (JP)

International Classes:

B26F3/00; B28D5/00; C03B33/033

Foreign References:

JP2019089672A	2019-06-13
JP2019112294A	2019-07-11
JP2020097496A	2020-06-25