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X-Y direction input device

  • US 5,293,158 A
  • Filed: 05/05/1992
  • Issued: 03/08/1994
  • Est. Priority Date: 05/05/1992
  • Status: Expired due to Term
First Claim
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1. A cursor control device for controlling the position of a cursor on a display, said cursor control device comprising:

  • a lower plate;

    a base plate fixedly connected to said lower plate, said base plate defining a first opening having a plurality of edges, said base plate having a lower surface facing said lower plate;

    an upper plate fixedly connected to said lower plate such that said base plate is disposed between said lower plate and said upper plate, said upper plate defining a second opening;

    a first elongated holding member slidably disposed between said base plate and said lower plate, said first holding member extending in a first direction and being slidable in a second direction perpendicular to said first direction, said first holding member including a first detector element for generating a signal representing a motion of said first holding member;

    a second elongated holding member slidably disposed between said base plate and said lower plate, said second holding member extending in said second direction and being slidable in said first direction, said second holding member including a second detector element for generating a signal representing a motion of said second holding member;

    an engaging member slidably connected to both of said first and second holding members, said engaging member including a portion extending through said first and second openings; and

    a plurality of independently slidable cover plates disposed between said base plate and said upper plate, said plurality of cover plates cooperating to cover said first opening in said base plate, thereby preventing dust from passing through said first opening to said first and second holding members.

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