Patent ID: 7820004
Filing Date: 2010-10-26
Classification: A61F,Y10T

Abstract:
1. A method for producing a worn article, including a first torso portion covering a part of a torso of a wearer, a second torso portion covering another portion of the torso of the wearer, and a core portion covering a crotch of the wearer, the method comprising the steps of: carrying a strip-shaped web being continuous in a carrying direction and having a first side edge portion and a second side edge portion; placing a leg elastic member along a first waveform on the web being carried, the first waveform being continuous in a longitudinal direction of the web and having a predetermined wavelength and a predetermined first amplitude, thereby producing a composite sheet; cutting off the composite sheet being carried, along a cut-off line having a second waveform being continuous in the longitudinal direction of the composite sheet, having a wavelength equal to the predetermined wavelength and a second amplitude smaller than the first amplitude, and being in synchronism with the first waveform, thereby dividing the composite sheet into a first separate sheet including the first side edge portion and having first depressed portions and first protruding portions alternating each other along the cut-off line and a second separate sheet including the second side edge portion and having second protruding portions and second depressed portions alternating each other along the cut-off line, and cutting off the elastic member so that the elastic member is included in the first and second depressed portions and is excluded from tip portions of the first and second protruding portions; shifting a phase of the first separate sheet and a phase of the second separate sheet from each other in a flow direction so that the first protruding portions and the second protruding portions face each other; and placing the core portion so as to bridge between the first protruding portions and the second protruding portions.