To provide a connecting-rodless press which is made compact without sacrificing high rigidity and has simple structure.

The connecting-rodless press is constituted so that an eccentric sleeve 6 is freely rotatably fitted onto the outer periphery of the eccentric part 5e of a crankshaft 5, and a slide 7 is freely rockably fitted onto the outer periphery of the eccentric sleeve 6, wherein the eccentric sleeve 6 has a circular-arcuate upper sliding part 61 and a lower sliding part 62 and an non-sliding part 63 in both side parts between the upper and lower sliding parts, provided on its outer periphery, and a sliding chamber formed on the slide 7 has a circular-arcuate upper sliding part 71 and a lower sliding part 72 and an non-sliding part 73 in both side parts between the upper and lower sliding parts, provided on the inner periphery. The radius R2 of curvature in the lower sliding parts of the eccentric sleeve 6 and the slide 7 is concentric with the center of the radius R1 of curvature in the upper sliding part and smaller in the length of radius.