Extension/retraction mechanism for checkstand with telescoping take-away conveyor
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United States of America Patent
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-
Dec 30, 2003
Grant Date -
Jun 19, 2003
app pub date -
Dec 17, 2001
filing date -
Dec 17, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
An extension/retraction mechanism for a take-away conveyor in a checkstand. The extension/retraction mechanism selectively stops and holds the telescoping take-away conveyor at the scan-and-bag position as the telescoping take-away conveyor is moving between walk-through and scan-and-pass positions. The extension/retraction mechanism includes a cam follower that is pivotally attached to the telescoping take-away conveyor for movement therewith. The cam follower rides within a cam track as the telescoping conveyor moves between the scan-and-bag, walk-through, and scan-and-pass positions. The cam track includes a series of turn surfaces so that the cam follower changes course as the telescoping take-away conveyor moves backward and forward. The cam track also includes at least one pocket for retaining the cam follower when the telescoping take-away conveyor is in the scan-and-bag position.
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