Patent ID: 7318543

Claim:
An apparatus for separating the bearing cap of a connecting rod by fracture, comprising a frame supporting a movable fixture and a stationary fixture, and which have respective crescents adapted to be brought together to form a circular profile engageable with the big end of a connecting rod and separable by an opening device for fracturing the big end of the connecting rod, wherein said opening device comprises a piston, which is slidably received within a cylindrical chamber made in one stationary crescent of said stationary fixture and has one end adapted to abut against the movable fixture and one opposite end provided with a sloping surface, and a driving member, which is slidable transversely to the piston under control of driving means, and has a sloping surface that is adapted to cooperate with a camming action with the sloping surface of the piston, and wherein a sleeve of the stationary crescent projects in cantilever fashion and is received within a corresponding cylindrical cavity of a movable crescent of the movable fixture and that is bored in the movable crescent, the piston being adapted to abut against an inner wall of the movable crescent.