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公开(公告)号：US20240413717A1
公开(公告)日：2024-12-12
申请号：US18704130
申请日：2022-10-31
Applicant: NHK SPRING CO., LTD.
Inventor： Shuji ANDO , Yuichiro JIN
Abstract: A manufacturing method for a motor core that makes a laminated annular iron core involving an upper and a lower jigs, arranges the laminated annular iron core with respect to the push-out jig and a loading jig so as to escape tip ends of positioning pins in place of the upper jig, while applying load onto the push-out jig using the loading jig, pushes out the laminated annular iron core with respect to the positioning pins.
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