Chuck for roller-cutting and winding machine

Details Chuck for roller-cutting and winding machine Chuck for roller-cutting and winding machine

2006-05-02

2009-06-02

Cuomo, Peter M (Department: 3654)

Winding, tensioning, or guiding

Coil holder or support

Radially expansible or contractile

C242S571700, C279S002210

Reexamination Certificate

active

07540448

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.

REFERENCES:
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patent: 5524849 (1996-06-01), Dorfel et al.
patent: 6367733 (2002-04-01), McLaughlin
patent: 2004/0256518 (2004-12-01), Hope
patent: 392193 (1965-05-01), None
patent: 7930223 (1979-10-01), None
patent: 1549370 (1979-08-01), None

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