Patent ID: 6884019
Filing Date: 2005-04-26
Classification: B25J,H01L,Y10T

Abstract:
1. A conveying arm comprising; a guide extending in a substantially straight manner; a first slider and a second slider that can slide along the guide; a third arm having an intermediate pivotable portion and a one-side end portion pivotably connected to the first slider; a fifth arm having a one-side end portion pivotably connected to an other-side end portion of the third arm; a fourth arm having an intermediate pivotable portion pivotably connected to the intermediate pivotable portion of the third arm and a one-side end portion pivotably connected to the second slider; a sixth arm having a one-side end portion pivotably connected to an other-side end portion of the fourth arm; and a seventh arm having a holding portion for an object to be conveyed, pivotably connected to an other-end portion of the fifth arm and an other-end portion of the sixth arm; wherein a positional relationship between the one-side end portion of the third arm, the intermediate pivotable portion of the third arm and the other-side end portion of the third arm is in such a manner that a line linking the one-side end portion to the intermediate pivotable portion is substantially perpendicular to a line linking the other-side end portion to the intermediate pivotable portion, and a positional relationship between the one-side end portion of the fourth arm, the intermediate pivotable portion of the fourth arm and the other-side end portion of the fourth arm is in such a manner that a line linking the one-side end portion to the intermediate pivotable portion is substantially perpendicular to a line linking the other-side end portion to the intermediate pivotable portion.