Opening method for packaging bag with fastener
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United States of America Patent
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N/A
Issued Date -
Sep 21, 2006
app pub date -
Feb 8, 2006
filing date -
Mar 17, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An opening method for a packaging bag with a fastener enables the fastener to be surely opened with a simplified arrangement and by a simple operation as compared to the prior art. A packaging bag with a fastener is held by being gripped at the laterally opposite side edges thereof with a pair of grippers. A pair of suction cups are disposed at respective stand-by positions at both sides of the bag. The suction cups are moved to respective mutually close positions and allowed to adhere to both side surfaces of the bag at respective regions where the fastener is present. The suction cups adhering to the bag are retracted to respective intermediate positions. The movement of the suction cups between the mutually close positions and the intermediate positions is repeated a plurality of times. Thereafter, the suction cups are returned to the stand-by positions. The fastener is opened stepwise.
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