Printing media roll mounting and positioning mechanism

  • US 5,813,343 A
  • Filed: 10/22/1996
  • Issued: 09/29/1998
  • Est. Priority Date: 10/23/1995
  • Status: Expired due to Term
First Claim
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1. Apparatus for mounting a tubular core carrying a roll of web material of any width within a predefined range for feeding said web material from said roll along a web path having a defined centerline, said apparatus comprising:

  • a first roll holder having a contact face for engaging a first end of a tubular core;

    a second roll holder having a contact face positioned opposite to said first contact face for engaging a second end of a tubular core;

    reciprocal movement apparatus coupled to said first and second roll holders for causing each of said contact faces to linearly move away from said centerline in response to movement of the other of said contact faces away from said centerline for enabling a tuabular core of any width within said predefined range to be inserted between said contact faces to position said core symmetrically with respect to said centering; and

    spring means for urging said roll holders toward said centerline for automatically engaging said roll holder contact faces against a tubular core inserted therebetween without requiring additional user intervention.

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