PROBLEM TO BE SOLVED: To provide an apparatus for manufacturing a sheet fused body capable of manufacturing a sheet fused body having excellent flexibility and touch feeling of seal edges and having practically sufficient fusion strength while preventing inconvenience caused by fume gas.SOLUTION: An apparatus for manufacturing a sheet fused body having seal edges which are fused in a state where edges of a plurality of sheets are overlapped comprises an irradiation head 312, a support member 21 for supporting one surface of a belt-like sheet laminate and a gas injection device 15, wherein the support member 21 has a slit-like opening 27, the gas injection device 15 comprises an injection nozzle 151 for injecting gas from a side of the support member 21 to a sheet laminate 10 and an injection direction changing mechanism 153 capable of continuously changing an injection direction to a conveyance direction of Y of the sheet laminate and a crossing direction of the sheet laminate. The sheet laminate 10 supported by the support member 21 is divided by irradiating a laser beam 30 along the opening 27 from a side of the support member 21 and the edges divided are fused in a state of being overlapped.COPYRIGHT: (C)2015,JPO&INPIT【課題】ヒュームガスに起因する不都合を防止しつつ、シール縁部の柔軟性、肌触りに優れ、実用上十分な融着強度を有するシート融着体を製造可能なシート融着体の製造装置を提供すること。【解決手段】複数枚のシートの縁部が重なった状態で融着したシール縁部を有するシート融着体の製造装置であり、照射ヘッド312と帯状のシート積層体の一方の面を支持する支持部材21と気体噴射装置15とを具備し、支持部材21はスリット状の開口部27を有し、気体噴射装置15は、支持部材21側からシート積層体10に向かって気体を噴射する噴射ノズル151と、噴射方向をシート積層体の搬送方向Y及びその交差方向に連続的に変化させ得る噴射方向変更機構153を備える。支持部材21に支持されたシート積層体10に、支持部材21側からレーザー光30を開口部27に沿って照射して分断するとともに、分断の縁部を重なった状態で融着する。【選択図】図6
