Patent ID: 6314828
Filing Date: 2001-11-13
Classification: B25J,B66C,Y10T

Abstract:
An apparatus for operating a tool, comprising:a first link comprising a first portion with an angular portion extending from said first portion at an angle .eta. between 120 degrees and 135 degrees,a second link comprising a first portion with an angular portion extending from said second portion of said second link at said angle .eta. between 120 degrees and 135 degrees,a third link,a fourth link,a first pivot means pivotally coupling said third and fourth links together,a second pivot means pivotally coupling said fourth link to said first link at about the juncture of said first portion and said angular portion of said first link,a third pivot means pivotally coupling said first link to said angular portion of said second link,a fourth pivot means pivotally coupling said third link to said second link at about the juncture of said first portion and said angular portion of said second link,the distance between said first and second pivot means being about equal to the distance between said third and fourth pivot means,the distance between said first and fourth pivot means being about equal to the distance between said second and third pivot means,said four links pivotally coupled together by said first, second, third, and fourth, pivot means define a parallelogram between said four pivot means,said first portion of said second link comprising means for use for coupling a tool thereto,first support means pivotally coupled to said first pivot means for moving said first pivot means and hence said second link to different positions,second support means pivotally coupled to said angular portion of said first link for moving said angular portion of said first link and hence said second link to different positions.