The time of the spaced in web width direction the plurality of elastic members of the extended state with respect to one side of the web to be sent to the series, and sends it to the series, to simplify and freely set the interval of the elastic member between them. And a removable drive shaft 12a, and transmission belts 23, 33 to be wound around the pulleys 21, 31, 41 each of a positive drive shaft 12a is arranged in the rotation axis direction of the pulleys 21, 31, 41 concentric multiple The guides 25, 35 by a drive unit 12 for controlling the reverse rotation, the fixed guide 25, 35, 45 the transmission belt 23, 33, 43 each, to determine a pulley diameter ratio between the pulleys 21, 31, 41 to , I was possible to set the feed amount difference of the web width direction to 45 each.一連に送るウエブの一面に対して、一連に送る伸張状態の複数の弾性部材をウエブ幅方向に間隔を空けて配置するに際し、それら弾性部材間の間隔の設定を自在かつ簡単にする。複数のプーリ21、31、41を同心に回転中心軸方向に並べて着脱可能な駆動軸12aと、プーリ21、31、41ごとに巻回する伝動ベルト23、33、43と、駆動軸12aの正逆回転を制御する駆動部12とを備え、伝動ベルト23、33、43ごとにガイド25、35、45を固定し、プーリ21、31、41間にプーリ径比を定めることによりガイド25、35、45ごとにウエブ幅方向の送り量差を設定可能とした。
