Chuck for roller-cutting and winding machine
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United States of America Patent
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-
Jun 2, 2009
Grant Date -
Feb 22, 2007
app pub date -
May 2, 2006
filing date -
May 6, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A core chuck for a web-winding machine has a drive shaft extending along an axis and having an outer periphery of polygonal shape seen axially and a hub having a central hole with a polygonal shape substantially complementary to the shaft and fittable with limited clearance over the shaft. A plurality of outwardly directed faces on the hub engage respective jaws and are angled such that relative rotation between the hub and the jaws radially displaces the jaws. A retaining screw extending along an axis of rotation of the shaft through the hub has a threaded shank seatable in the shaft and a head engageable axially in one direction with the hub. A cover disk axially fixed on the hub is formed on the axis with a hole of smaller diameter than the head of the screw. The screw head is captured axially between the disk and the hub.
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