Patent ID: 6089500
Filing Date: 2000-07-18
Classification: B65H

Abstract:
A winding spool; comprising:a hollow barrel having opposite ends and defined by an axis;a pair of flanges;a bayonet coupling for detachably mounting at least one of the flanges to one end of the barrel, said bayonet coupling including a plurality of spaced-apart retainer elements and a plurality of spaced-apart locking elements respectively connected to the one end of the barrel and an inside wall of the at least one flange, and so interacting with one another that the at least one flange is attachable to the one end of the barrel and securable by rotating the at least one flange relative to the barrel until reaching a stop constituting a lock position of the bayonet coupling, wherein at least one of the retaining elements is formed with a bore and at least one of the locking elements is formed with a bore, said bore of the at least one retaining element and said bore of the at least one locking element being in alignment when the bayonet coupling occupies the lock position; anda plug member insertable in a direction of the axis in the bores when the bores are in alignment.