Production method for glass roll
US12291476B2 · kind B2 · utility
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1References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2020 |
| Grant date | May 6, 2025 |
| Priority date | — |
| Expiry date | Jan 11, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2225/02
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Provided is a method of manufacturing a glass roll (GR), including: a conveying step of conveying a band-shaped glass film (G2) in a lateral conveying direction by a conveying device (4); and a roll-up step of rolling up the glass film (G2) into a roll shape. The conveying step includes an inspection step of measuring a state of each of end portions (Gd, Ge) in a width direction of the glass film (G2) by a detection unit (19a, 19b) under a state in which a tension is applied to the glass film (G2) that passes through an intermediate conveying region (MS) of the conveying device (4) by a tension applying portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.