Digitizer
AssigneeMelco Industries, Inc.
InventorRobert F. Hoppe
Life of this patent
Estimating the term…
Abstract
An improvement in a digitizer for use in computer drafting has been provided wherein a multiple wire connector located in both the X beam and Y beam is held in a taut and concealed condition within the respective beams for any position of the digitizer. An adjustable attachment is provided between the extrusions for the X and Y beam and the respective X and Y guide bars so that the guide bar can be aligned in a straight condition regardless of any warping of the beams during extrusion. A mechanical brake is also provided for fixing the position of the digitizer during use.
Claims12
An improvement in a digitizer for holding a multiple wire connector in taut condition between stationary computer and a movable carriage in a digitizer which includes a beam, a carriage movable along said beam, a computer attached to one end of said beam, said improvement comprising:
- a multiple wire connector for transmitting information from said carriage and having one end connected to said carriage and the other end connected to said computer;
- a pulley means movable along said beam in response to said movement of said carriage, said multiple wire connector extending from said carriage arond said pulley means back past said carriage to said computer;
- and
- means for moving said pulley means in the same direction as said carriage but only half the distance of the movement of said carriage to hold said multiple wire connector in taut condition during any movement of said carriage along said beam.
An improvement in a digitizer for holding a multiple wire connector in taut condition between a stationary computer and a movable carriage in a digitizer which includes an X beam, a first carriage movable along said X beam, a Y beam having one end connected to said first carriage and depending therefrom, a second carriage movable along said Y beam, a computer mounted adjacent one end of said X beam, a digital display and keyboard on said second carriage, said improvement comprising:
- a first pulley means movable along said X beam in response to said movement of said first carriage and mounted on the opposite side of said first carriage from said computer;
- a first multiple wire connector extending from said computer past said first carriage around said first pulley means and back to said first carriage;
- means for moving said first pulley means in the same direction as said first carriage but only half the distance of the movement of said first carriage to hold said first multiple wire connector in taut condition during movement of said first carriage along said X beam;
- a second pulley means movable along said Y beam in response to said movement of said second carriage and mounted on the opposite side of said second carriage from sid first carriage;
- a second multiple wire connector extending from said first carriage past said second carriage around said second pulley means and back to said second carriage, said first and second multiple wire connectors being electrically interconnected through said first carriage;
- and
- means for moving said second pulley means in the same direction as said first carriage but only half the distance of the movement of said second carriage to hold said second multiple wire connector in taut condition during movement of said second carriage along said Y beam.
Dependencies are inferred from the claim text.