Lifter and drying machine having the same

A drying machine, comprising:

• a cabinet;
• and
• a drying drum disposed at an inside the cabinet, and configured to rotate by receiving rotating force from a driving source,
• wherein the drying drum comprises:
• a cylindrical part;
• and
• at least one lifter formed at an inner circumferential surface of the cylindrical part in a direction parallel to a driving shaft so as to have laundry move according to a rotation of the drying drum, and
• wherein the at least one lifter comprises:
• at least one coupling boss part configured to be coupled to the drying drum;
• at least one guide rib protrudedly provided to pass through the drying drum while being integrally formed with one side of the at least one coupling boss part so as to temporarily couple the at least one lifter to the drying drum;
• and
• a first fixation hole provided at the cylindrical part to couple with the coupling boss part and to temporary fix the at least one guide rib.