Cleaving apparatus for a band-like glass film and cleaving method for a band-like glass film
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United States of America Patent
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Jul 8, 2014
Grant Date -
May 31, 2012
app pub date -
Nov 15, 2011
filing date -
Nov 22, 2010
priority date (Note) -
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Abstract
A cleaving apparatus holds at least one surface (effective surface) of a band-like glass film in a non-contact state to suppress a situation that wavy portions reach a region in which the band-like glass film is to be cleaved. The cleaving apparatus cleaves the band-like glass film, which is being conveyed in a longitudinal direction thereof, along a conveyance direction thereof using a thermal stress generated through localized heating and cooling of a heated region. The localized heating and the cooling is performed on a preset cleaving line extending along the conveyance direction of the band-like glass film. The cleaving apparatus includes an air knife for supplying air to a front surface of the band-like glass film to retain the film on a conveyor at a position on an upstream side of a cleaving region in the conveyance direction.
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