Packaging machine
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United States of America Patent
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Apr 26, 2016
Grant Date -
Aug 16, 2012
app pub date -
Feb 16, 2012
filing date -
Feb 16, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A packaging machine includes a pair of brushes that hold a tubular film (Fm) therebetween while rotating and impeding the advancement of packaged articles. Consequently, an elongated stream of packaged articles aggregate at the leading end of the pair of brushes. When the pair of brushes release the tubular film, the packaged articles are again conveyed in a more closely aggregated state than the aggregated state thereof when the advancement of the packaged articles was temporarily impeded. The rotational axis of each brush is also biased a predetermined distance from the central axis of a core thereof. Since the brushes swing in conjunction with the rotation thereof, small vibrations and large swings cause the gaps between packaged articles to be readily filled and reduce the space occupied by the packaged articles. As a result, the bag size can be reduced.
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