Abstract: The present invention provides a technique which can disassemble a mandrel having a substantially cylindrical shape and being dividable into a plurality of segments, easily and efficiently. The disassembling method comprises, in the mandrel adhesively attached with a composite material structure on an outer peripheral surface thereof, a rotation step of rotating the pair of support rings along with the mandrel to position a segment which is a detached target to an uppermost portion; and a segment detaching step of detaching the segment which is the detached target positioned at the uppermost portion, from the pair of support rings; wherein in the segment detaching step, the segment which is the detached target is moved in a vertically downward direction to a position inside of the mandrel, between the pair of support rings, and is carried out from between the pair of support rings.

Abstract: A reel-to-reel assembly is provided. The reel-to-reel assembly includes, but is not limited to a supply spindle and a wind-up spindle. The supply spindle receives a supply reel having a length of ribbon wrapped around the supply reel. The wind-up spindle receives an initially empty wind-up reel. The wind-up spindle includes an adjustment mechanism for varying the outer diameter DO of the wind-up spindle from an initial outer diameter DOi to a final outer diameter DOf which is larger than the initial outer diameter DOi.

Abstract: A rolled body holder includes a center shaft member serving as a lead screw connected to a handle, a cam member screwed to the center shaft member, and a plurality of segments which form a cylindrical body covering the center shaft member and the cam member. The cam member includes a plurality of rails, and each of the rails includes a cam surface with a radially varying height. Each of the segments includes a follower part fitted to the rail and relatively slidable along the cam surface and an outer surface part on which multiple projections are formed. When the cylindrical body is inserted into a paper tube of a rolled body and the handle is rotated, the center shaft member is rotated to move the cam member in the longitudinal direction. Then, a portion of the cam surface, which is higher in the radial direction, is brought into contact with the follower part, and each of the segments extends in the radial direction so that the projections bite into an inner surface of the paper tube.

Abstract: A take up roller for use in a continuous roll towel cabinet is shown which can after taking up the desired amount of toweling, be simply collapsed to have a smaller daimeter facilitating easy removel from the center of the accumulated toweling. A three segment cylinder is shown with a pair of end spindles that serve as the central shaft and expanding/collapsing member.