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Operating device

  • US 20040189595A1
  • Filed: 02/27/2004
  • Published: 09/30/2004
  • Est. Priority Date: 03/27/2003
  • Status: Active Grant
First Claim
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1. An operating device for controlling a display screen, comprising:

  • a rotatable operating member of cylindrical shape; and

    a slidable operating member having a cylindrical tip portion located above an upper end of said rotatable operating member, said rotatable operating member and said slidable operating member being used for controlling said display screen, wherein a diameter of an upper surface of said cylindrical tip portion of said slidable operating member is reduced relative to a diameter of a lower surface of said cylindrical tip portion, and said diameter of said lower surface of said cylindrical tip portion of said slidable operating member is equal to or less than a diameter of an upper surface of said rotatable operating member.

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