MANDREL

摘要

A mandrel suitable for supporting and unwinding a convolutely wound web material is disclosed. The mandrel has a mandrel shaft with a longitudinal axis, a plurality of mandrel arms extending from the mandrel shaft, and at least one expansion element disposed upon one of the mandrel arms. The mandrel shaft is capable of rotating about the longitudinal axis. Each of the mandrel arms is disposed and rotatable about the longitudinal axis. The at least one expansion element is expandable radially away from the mandrel arm relative to the longitudinal axis. The convolutely wound web material is disposable about each of the mandrel arms. Further, the at least one expansion element is expandable into contacting and releasable engagement with the convolutely wound web material. The convolutely wound web material is fixably and releasably disposed about each of the mandrel arms.

主权项

1. A mandrel suitable for supporting and unwinding a convolutely wound web material, a portion of said convolutely wound web material forming a hollow core therein, said mandrel comprising:
a. a mandrel shaft having a longitudinal axis, said mandrel shaft being capable of rotating about said longitudinal axis; b. a plurality of mandrel arms extending from said mandrel shaft, each of said mandrel arms being disposed and rotatable about said longitudinal axis; c. at least one expansion element disposed upon one of said mandrel arms, said at least one expansion element being expandable radially away from said mandrel arm relative to said longitudinal axis; d. said core of said convolutely wound web material being disposable about each of said mandrel arms, said at least one expansion element being expandable into contacting and releasable engagement with said portion of said convolutely wound web material forming said hollow core, said convolutely wound web material being fixably and releasably disposed about each of said mandrel arms; and, e. wherein said plurality of mandrel arms are coextensively and cooperatively interengageable with a second mandrel.