Browse Prior Art Database

Keyboard Cable System

IP.com Disclosure Number: IPCOM000116574D
Original Publication Date: 1995-Oct-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Horiuchi, M: AUTHOR [+2]

Abstract

Disclosed is a keyboard interface cable design between keyboard and a system board or an interposer card. When a membrane cable is used as an interface cable which is strained and/or loosened every time, the keyboard is opened or closed. The subject system can prevent the membrane cable from ripping, folding or rubbing with excessive length.

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This is the abbreviated version, containing approximately 100% of the total text.

Keyboard Cable System

      Disclosed is a keyboard interface cable design between keyboard
and a system board or an interposer card.  When a membrane cable is
used as an interface cable which is strained and/or loosened every
time, the keyboard is opened or closed.  The subject system can
prevent the membrane cable from ripping, folding or rubbing with
excessive length.

      Fig. 1 shows the schematic draft of this system.  An interface
connector (1) on an interposer card (2) is provided on the opposite
side than usual.

      In Fig. 2, when a keyboard (3) is opened around a pivot (4), a
flexible cable (5) is pulled.  Then, a buffer of cable length, which
is provided beforehand, absorbs strain by changing the curvature of
its curl.

      This feature may be used at any portion where a cable is pushed
and pulled along cable line, and where a locus of cables should be
kept fixed.