Winding – tensioning – or guiding – Bobbin or spool – Double-headed spool
Patent
1984-05-03
1986-04-15
Jillions, John M.
Winding, tensioning, or guiding
Bobbin or spool
Double-headed spool
242 72R, 242115, 249179, 425471, 425DIG14, B65H 7524
Patent
active
045822751
ABSTRACT:
A collapsible, cantilevered mandrel is disclosed comprising a core rotatable about a longitudinal axis, a tubular shell having a longitudinal slit to permit collapsing of the shell, means for rigidly mounting an arcuate segment of the shell to the core such that the shell is disposed about the longitudinal axis, and means for collapsing the mandrel. The means for collapsing the mandrel includes an actuating member mounted between the core and the shell for reciprocal motion, and a plurality of linkage means connected to the actuating member. Each linkage means is connected to first and second portions of the shell on opposite sides of the slit, and is adapted to cause at least one of the first and second portions to move circumferentially towards the other portion and radially inward when the actuating member moves.
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