Patent ID: 6896306
Filing Date: 2005-05-24
Classification: B66C,E02F,Y10T

Abstract:
1. Actuator mechanism for a grab device ( 1 ) having two grab arms ( 9 , 10 ) structured and arranged to move as pincers, and comprising two hydraulic pivot motors respectively having pivot shafts ( 3 , 4 ) and shaft journals ( 5 , 6 ) therefor and projecting from a carrier housing ( 2 ) to support the respective grab arms ( 9 , 10 ), wherein each of said pivot motors comprises a tubular piece ( said tubular pieces ( pitch of the respective internally and externally-threaded sections is sufficiently large to transmit required torque to said pivot shafts ( a displacement path of each said ring piston ( additionally comprising a transverse web (