Shovel loader has gripper for picking pup cylindrical objects, pinion, cylinder, annular groove, pipes, and opening

摘要

The appliance on a shovel loader has a gripper for picking up cylindrical objects. A pinion (32) is fixed to a base part and has two longitudinally movable toothed bars joined to the gripper.. A cylinder (323) is rotarily mounted in the pinion whose inner wall (324) and or cylinder's outer wall (325) have annular grooves (326,327). Pipes in the cylinder each join a groove and an opening (315) on the cylinder's end side. The pinion contains pipes each joining a groove and opening on the pinion's exterior,