Drum for a creasing device

  • US 7,563,220 B2
  • Filed: 12/12/2007
  • Issued: 07/21/2009
  • Est. Priority Date: 08/20/2005
  • Status: Active Grant
First Claim
Patent Images

1. A drum for a creasing device, comprising:

  • a first drum part having a cylindrical outer surface and defining a bore for mounting the first drum part about a shaft; and

    a second drum part having a cylindrical outer surface and defining a bore for mounting the second drum part about said shaft;

    wherein said first and second drum parts are shaped such that the two drum parts may abut one another to define between the first and second drum parts a base and two side walls of a circumferential channel about the drum; and

    wherein at least one side wall of the channel defines a recess so that a resilient creasing ring located in the channel and projecting laterally into the recess cannot be withdrawn radially from the channel.

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