公开(公告)号：EP3693282A1

公开(公告)日：2020-08-12

申请号：EP18864400.9

申请日：2018-10-03

Applicant: Toppan Printing Co., Ltd.

Inventor： YUHARA Noritaka

IPC: B65B51/22

Abstract: Provided is an ultrasonic sealing anvil capable of applying more uniform sealing pressure in a sealing direction. The ultrasonic sealing anvil has a strip-shaped pressing surface (10) that faces a vibration applying surface of an end of a horn and extends along a welding position of sheet members, the pressing surface (10) having a step (10A) and a pair of extending surfaces (10B), the step (10A) having a concave shape formed at a position at which the step abuts a thick layer portion R with a relatively large thickness of the laminated sheet members and having inclined surfaces (10Ab) on both left and right sides, the pair of extending surfaces (10B) being continuous to the respective inclined surfaces (10Ab) on the both left and right sides of the step (10A) and extending leftward and rightward along the welding position with the step (10A) interposed therebetween, wherein the inclined surface (10Ab) has one or more grooves (20) that extend in a width direction of the pressing surface (10).