Noritomo Kameda, Kanonji, Japan; and Shinichi Ishikawa, Kanoji, Japan.
Assigned to Unicharm Corporation, Ehime, Japan.

Filed: 7/12/13
Issued: 4/25/17

A manufacturing apparatus for a composite sheet associated with an absorbent article, in which a continuous body of an elastic member is in a stretched state and is bonded with a continuous body of a sheet, said manufacturing apparatus comprising: a controller; a conveying mechanism configured to continuously convey the continuous body of the sheet in a conveying direction; and a guiding member configured to transport the continuous body of the elastic member in a transporting direction towards the continuous body of the sheet while moving, in a back-and-forth motion, the continuous body of the elastic member in an intersecting direction that intersects the conveying direction, the continuous body of the sheet being traveling in the conveying direction, and bond the continuous body of the elastic member with the continuous body of the sheet while a position on the continuous body of the sheet at which the continuous body of the elastic member bonds with the continuous body of the sheet is continuously changing in the intersecting direction by the back-and-forth motion, wherein the guiding member includes a drive roller configured to be driven and rotated along the transporting direction while being contact with the continuous body of the elastic member, an oscillating arm configured to oscillate about a predetermined axis in the intersecting direction, wherein the drive roller is disposed on an oscillating end of the oscillating arm, a second roller disposed on the oscillating arm at a position closer to the predetermined axis than the drive roller and configured to be driven and rotated at a same rotation speed as the drive roller to transport the continuous body of the elastic member to the drive roller, and the controller is configured to change the rotation speed of the drive roller to adjust a stretching ratio of the continuous body of the elastic member.