Patent ID: 6309003
Filing Date: 2001-10-30
Classification: B25J

Abstract:
A power gripper assembly comprising:a housing having opposed ends,opposed finger carriers mounted on said housing on the opposed ends of said housing,a pair of diagonally opposed support shafts, each of the support shafts slidably supporting said finger carrier on said housinga drive means for reciprocating said finger carriers between and open and closed position,said drive means including two pair of cylinder chambers wherein one pair of said cylinder chambers is oppositely disposed relative to the other of said pair of cylinder chambers,a piston displaceably disposed within each of said cylinder chambers,a piston rod independent from said support shaft connected to each of said pistons,said piston rods having a free end, said free end of said piston rods of said one pair cylinder chambers being connected to one of said finger carriers, and the free ends of said piston rods of said other pair of cylinder chambers being connected to the other of said finger carriers,and a synchronizing means including a synchronizing shaft having a rack portion connected to each of said fingers and a pinion disposed in meshing relationship with said rack portions of said synchronizing shafts.