Browse Prior Art Database

Braille Interposer

IP.com Disclosure Number: IPCOM000108080D
Original Publication Date: 1992-Apr-01
Included in the Prior Art Database: 2005-Mar-22
Document File: 2 page(s) / 56K

Publishing Venue

IBM

Related People

Ellis, NI: AUTHOR [+2]

Abstract

Interposers are used in a multitude of printing applications to create or fill characters that would not be able to be printed by conventional impact printing means. Interposers can be made from a wide range of materials, but usually they are made from some type of polymer. The interposer described below will enable impact style printers to print programming braille.

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Braille Interposer

       Interposers are used in a multitude of printing
applications to create or fill characters that would not be able to
be printed by conventional impact printing means.  Interposers can be
made from a wide range of materials, but usually they are made from
some type of polymer.  The interposer described below will enable
impact style printers to print programming braille.

      The interposer is fitted to the printer as shown in Fig. 1.
Interposer 1 is attached to the mid forms guide 2 which aligns the
interposer 1 with the hammer line 3.  The paper forms 4 are then fed
between the interposer 1 and the print band 5.  The hammer 3 is then
fired, impacting the interposer 1 which, in turn, pushes the paper 4
into the print character on the band 5 to create the embossed braille
dimple.

      As seen in Fig. 2 the interposer is a sheet 1 is a sheet
5 of Kapton* material with mid-section area 6 removed to accommodate
the rubber braille interposer strip 2.

      Interposer strip 2 is made of polyester urethane, shore A
(durometer 60) and is fastened to the sheet 5 at an area which is in
alignment with the printer hammer faces 3.  A stiffening member 4 is
fastened to the bottom edge of the strip 2 and to the sheet 5 to
insure a ridged assembly.  The fastening of the strip 2 and the
stiffening member 4 is accomplished by the use of an adhesive.

      This interposer assembly method allows the strip 2 to lay in a
more natural rela...