A plurality of first protrusions are arranged in the width direction of the anvil roll to generate a joint for joining the pair of sheets to each other, and each first protrusion extends in the circumferential direction of the anvil roll and the elastic member is inserted. At least one receiving portion for receiving the pair of sheets is arranged between one first protruding portion and another first protruding portion that are adjacent to each other in the width direction and include a conveying groove that conveys the elastic member. There is.一対のシートを互いに接合する接合部を生成するための第１突部がアンビルロールの幅方向に複数配置され、各第１突部は、アンビルロールの周方向に延び、弾性部材が入り込んだ状態で弾性部材を搬送する搬送溝を包含し、幅方向に互いに隣り合う１つの第１突部と別の第１突部との間に一対のシートを受け止める少なくとも１つの受止部が配置されている。
