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Navigation key for a handset

  • US 6,097,964 A
  • Filed: 09/04/1997
  • Issued: 08/01/2000
  • Est. Priority Date: 09/04/1997
  • Status: Expired due to Term
First Claim
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1. A navigation key structure for providing control signals in dependence on the operation thereof, and comprising:

  • a roller body acting as a navigation key;

    a carrier for carrying said roller body;

    said carrier being supported by supporting means;

    said carrier being hinged relative to the supporting means by cooperating hinging parts;

    biasing means for urging the carrier and the supporting means away from each other at a distance from said hinging parts; and

    detection means for detecting a force counteracting the biasing force provided by said biasing means and for providing a control signal in dependence thereon,wherein the carrier comprises a shaft part retained between two plate-shaped end parts, said roller body is arranged rotatably on said shaft part, and said end parts are furthermore adjoined by at least one beam-shaped leg part extending along the shaft part,wherein the carrier comprising said shaft part, said two plate-shaped end parts and said at least one beam-shaped leg part provides a stiff structure, andwherein the carrier comprises two leg parts in parallel with the shaft part, and the hinge part of the carrier extends outwardly from one of said leg parts.

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