Abstract: A device for breaking and dividing an enlarged bearing portion of a connecting rod into a main body portion and a bearing cap portion includes a split mold which is insertable into an aperture in the enlarged bearing portion. A pressing mechanism includes pressure caps engaging dramatically opposite points on the outer surface of the enlarged bearing portion at locations where the beating portion is to be broken and divided when a wedge is forced into the split mold.

Abstract: It is an object of the present invention to provide a pressurizing mechanism for breaking and dividing a con'rod, in which a wedge is forced through a split mold into a bearing portion on the large end portion side of a con'rod made in such a way that the bearing cap portion included in the large end portion and the main body side to be connected to the cap portion are manufactured as one piece. Breaking and dividing the main body and the bearing cap portion is performed so that the main body and the bearing cap portion may be broken and divided precisely at the face to be broken and divided, and further, the deformation at that moment can be made minimum.