Gripper mechanism for the grapple of a construction machine

摘要

Gripper mechanism (1) for the gripper (100) of a construction machine, in particular a hydraulic excavator, with a drive section (20), rod arms (3) and articulated sections (4), with a piston-cylinder drive (2) on the drive section (20) is provided, wherein the joint sections (4) are designed to connect the gripper mechanism (1) with gripper pliers (101) and are rotatably mounted on bearing points (41) of the drive section (20), and the bearing points (41) of the joint sections (4) are provided in the direction of movement of the piston-cylinder drive (2) on the same side of the piston-cylinder drive (2), characterized in that the piston-cylinder drive (2) is designed as a double plunger cylinder, which has a piston (22 ) with axially centrally arranged bearing eye (23) extending in the radial direction, the bearing eye (23) being coupled to the joint sections (4) via the linkage arms (3).