Patent ID: 7572093
Filing Date: 2009-08-11
Classification: B25J,H01L,Y10T

Abstract:
1. A transport apparatus comprising: a first driving shaft, a second driving shaft, and a third driving shaft each independently movable about a predetermined coaxial axis and each being coupled to a respective drive mechanism, whereby rotations of the first through third driving shafts are independently controlled, respectively, a first driving arm, a second driving arm, and a third driving arm fixed to the first through third driving shafts, respectively, a first link mechanism consisting of the first and the third driving arms among the first through third driving arms and a pair of first driven arms that are directly connected to the first and the third driving arms, a first transport unit connected to the first driven arms for transporting an object to be transported; a second link mechanism consisting of the second and the third driving arms among the first through third driving arms and a pair of second driven arms that are directly connected to the second and third driving arms, and a second transport unit connected to the second driven arms for transporting an object to be transported; wherein the pair of first driven arms with the first transport unit are rotatably coupled together in a horizontal plane above the first through third driving shafts, wherein the pair of second driven arms with the second transport unit are rotatably coupled together in a horizontal plane above the pair of first driven arms and the first transport unit, and one of the pair of second driven arms is rotatably coupled in the horizontal plane to a top end of the second driving arm which is formed in shape so that the top end of the second driving arm can be placed above the pair of first driven arms and the first transport unit, wherein each of the first through third driving arms has a same length, the length being from an axis of the rotary shafts to a connection of the respective arm to any of the driven arms.