Patent ID: 6712308
Filing Date: 2004-03-30
Classification: B65H

Abstract:
A chuck receivable on a drive shaft of a winding apparatus for supporting and driving a core of a reel, comprising;an inner ring for encircling the drive shaft and to which torque can be applied from the drive shaft during use; a casing encircling the inner ring and having an outside diameter less than or equal to the internal diameter of a core; a core driving element including a core engaging element for engaging an inner surface of a core surrounding the chuck during use to prevent relative rotation of the casing and the core, the core engaging element engaging the inner surface of the core in response to relative rotation of the inner ring and the casing; and a switching element for controlling relative rotation of the inner ring and the casing so that, with the switching element in a first state, a torque applied to the inner ring causes the core engaging element to engage the core, and with the switching element in a second state, relative rotation of the inner ring and the casing is restricted so that the core engaging element does not engage the core.