A cutter device for cutting a workpiece for an absorptive article conveyed in the conveyance direction. The cutter device is provided with: a cutter roller which rotates about the rotation axis thereof extending in the direction intersecting the conveyance direction and which has a cutter blade provided on the outer peripheral surface of the cutter roller so as to protrude from the outer peripheral surface an anvil roller which rotates in association with the rotation of the cutter roller and which has an outer peripheral surface disposed so as to face the outer peripheral surface of the cutter roller and receiving the cutter blade and a backup roller which has predetermined contact portions which are made to be in contact with and pressed against the outer peripheral surface of the anvil roller to prevent the deflection and deformation of the anvil roller. Annular protrusions are provided on the outer peripheral surface of the cutter roller at positions closer to the ends of the outer peripheral surface in the direction of the rotation axis than the position of the cutter blade. The annular protrusions protrude from the outer peripheral surface of the cutter roller and are in contact with the outer peripheral surface of the anvil roller. The contact portions of the backup roller are located at both ends thereof in the direction of the rotation axis, at positions closer to the center than the annular protrusions in the direction of the rotation axis.本發明之課題係維持砧輥對於切割輥的姿勢在良好狀態的同時,有效地抑制砧輥中央部之彎曲使切割刀的切斷性良好。課題之解決手段係將沿搬運方向搬運之吸收性物品的工件加以切割之切斷裝置。具備:切割輥、砧輥以及支撐輥,該切割輥係繞著旋轉軸旋轉,在外周面突出設有切割刀,該旋轉軸係沿著與搬運方向交叉之方向;該砧輥係與切割輥連動旋轉,且藉由與切割輥之外周面對向配置的外周面承受切割刀;該支撐輥係以既定之抵接部位抵接於砧輥之外周面來推壓砧輥,藉此抑制砧輥之彎曲變形。在切割輥之外周面中比切割刀之位置更靠近沿著前述旋轉軸方向之端部側的位置,分別設有從前述外周面突出來抵接於砧輥之外周面的環狀凸部。支撐輥之前述抵接部位,係位於沿著前旋轉軸之方向的兩端部,並且在沿著前述旋轉軸之方向上位於比前述環狀凸部更靠近中央側。1a‧‧‧半製品(工件)10‧‧‧切斷裝置12、13、14‧‧‧軸承構件15‧‧‧殼體構件15a‧‧‧框體17‧‧‧油壓缸20‧‧‧切割輥20s‧‧‧外周面21‧‧‧切割刀22‧‧‧輥筒部23‧‧‧小徑部25‧‧‧輥枕部(環狀凸部)25s‧‧‧周面40‧‧‧砧輥40s‧‧‧外周面42‧‧‧輥筒部43‧‧‧小徑部50‧‧‧支撐輥52‧‧‧輥筒部53‧‧‧小徑部5
