US 2019/0161385 A1Published application

Glass film production method

AssigneeNippon Electric Glass Co., Ltd.

InventorsKaoru MITSUGI, Naohiro IKAI, Shuji AKIYAMA

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Abstract

A conveying device (14) for a glass film (G) includes: a first support (21) configured to support a first portion (Gc) of the glass film (G) having been cut; a second support (22) configured to support a second portion (Gd) of the glass film (G) having been cut; and an opening (23) formed at a position between the first support (21) and the second support (22) and below a laser irradiation apparatus (19). A cutting step for the glass film (G) includes deforming the glass film (G) so as to be convex downward through the opening (23), and radiating a laser beam (LB) from the laser irradiation apparatus (19) to a position which is within a range of the opening (23), and which is prevented from coinciding with a top (GT) of the glass film (G).

Claims6

Dependent claims

A method of producing a glass film, comprising:

a conveying step of conveying a band-like glass film in a predetermined direction with a conveying device;
and
a cutting step of melt-cutting the glass film into a first portion and a second portion with a cutting portion while conveying the glass film by the conveying step,
the cutting portion comprising:
a laser irradiation apparatus;
a first support configured to support the first portion;
a second support configured to support the second portion;
and
an opening formed at a position between the first support and the second support and below the laser irradiation apparatus,
the cutting step comprising deforming the glass film so as to be convex downward through the opening, and radiating a laser beam from the laser irradiation apparatus to a position which is within a range of the opening, and which is prevented from coinciding with a top of the glass film.

7 more elements

Dependencies are inferred from the claim text.