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Ergonomic pointing device

DC
  • US 5,414,445 A
  • Filed: 10/07/1992
  • Issued: 05/09/1995
  • Est. Priority Date: 10/07/1992
  • Status: Expired due to Term
First Claim
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1. A pointing device for inputting commands into a computer comprising:

  • a body;

    a key coupled to the body; and

    wherein the body is 4.25 to 4.5 inches long as measured along a bottom surface from a front end to a back end, the key being coupled to the body such that it forms a portion of the front end and of a top surface, the top surface sloping upwards from the front end to a high point, the top surface sloping downwards from the high point to the back end, the high point being 2.65 to 2.75 inches from the front end and a height of the back end being 0.0 to 0.5 inch, as measured from a back edge to the bottom surface, whereby the height of the back end allows a user to position a lower palm of the user'"'"'s right hand or left hand on a work surface, a size of the user'"'"'s right hand or left hand falling within a range of a 5th percentile female to a 95th percentile male of North American adults, and the top surface of the pointing device provides a support for the hand plane of the user'"'"'s right hand or left hand, the hand plane being a region defined by the second to fifth metacarpals, the metacarpals being numbered 1-5, beginning with the thumb, and allows a finger of the user'"'"'s right hand or left hand to rest in a neutral posture along the top surface of the pointing device such that the keys may be activated by the finger of the user, thereby allowing the user to grasp and actuate the pointing device with either the right hand or the left hand in a biomechanically neutral position.

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