公开(公告)号：US20210246588A1

公开(公告)日：2021-08-12

申请号：US16951731

申请日：2020-11-18

Applicant: JANOME SEWING MACHINE CO., LTD.

Inventor： Yumiko KAMBARA ,  Yoshitaka BAMBA ,  Jun MAFUNE

IPC: D05B73/12 ,  D05B37/04

Abstract: In a needle plate, a needle plate hole is configured to include a hole-side cutting side that cuts a cutting target object together with a blade portion, and a relief side that allows a cut portion of the cutting target object to escape. Specifically, the needle plate hole has the hole-side cutting side that shears the cutting target object together with a blade-side cutting side of the blade portion, and the relief side that forms a gap between the blade portion to be inserted and the relief side. In this manner, in the former stage of cutting processing, the cutting target object can be cut by the hole-side cutting side and the blade-side cutting side.

公开(公告)号：US20210246587A1

公开(公告)日：2021-08-12

申请号：US16951643

申请日：2020-11-18

Applicant: JANOME SEWING MACHINE CO., LTD.

Inventor： Yumiko KAMBARA ,  Yoshitaka BAMBA ,  Jun MAFUNE

IPC: D05B37/08 ,  D05B73/12

Abstract: In a sewing machine, a plurality of needle plate holes are formed in a needle plate. The needle plate holes are arranged at positions respectively corresponding to a plurality of blade-side rotation positions of a cutwork blade. In this manner, the needle plate hole is formed in a shape corresponding to a shape of a blade portion, and a direction of the needle plate hole can match a direction of the blade portion that is arranged above to face the needle plate hole. Specifically, a linear hole-side cutting surface corresponding to a blade-side cutting surface of the blade portion is formed in the needle plate hole, and the blade-side cutting surface and the hole-side cutting surface can be arranged to face each other in a direction orthogonal to both the surfaces in a plan view.