Glass roll
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United States of America Patent
Stats
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Jul 30, 2013
Grant Date -
Jul 21, 2011
app pub date -
Sep 30, 2009
filing date -
Oct 1, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Provided is a glass roll utilizing a flanged roll core, and reliably inhibiting a glass film from breaking from an end portion in a width direction thereof as an origin of breakage. A glass roll (1) is formed by winding a glass film (4) and a cushion sheet (5), under a state of being superposed, around a roll core (3) including a flange (2) at each end portion thereof, in which an end portion in a width direction of the glass film (4) is separated from the flange (2) on each side in the width direction of the glass film (4), and the cushion sheet (5) is extended beyond the end portion in the width direction of the glass film (4) to the flange (2) side, to thereby form an extension portion (5a).
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Cited Art Landscape
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