US 12,286,737 B2
Needle plate construction for sewing machine and sewing machine
Shinko Egami, Kasugai (JP); Takahiro Yoshida, Kasugai (JP); and Tatsuya Yamashita, Kasugai (JP)
Assigned to TISM CO., LTD., Kasugai (JP)
Appl. No. 18/694,513
Filed by TISM CO., LTD., Kasugai (JP)
PCT Filed Mar. 16, 2022, PCT No. PCT/JP2022/011962
§ 371(c)(1), (2) Date Mar. 22, 2024,
PCT Pub. No. WO2023/053506, PCT Pub. Date Apr. 6, 2023.
Claims priority of application No. 2021-161555 (JP), filed on Sep. 30, 2021.
Prior Publication US 2024/0384454 A1, Nov. 21, 2024
Int. Cl. D05B 73/12 (2006.01); D05B 49/04 (2006.01); D05B 57/26 (2006.01)
CPC D05B 73/12 (2013.01) [D05B 49/04 (2013.01); D05B 57/26 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A needle plate construction for a sewing machine, including a needle plate having a needle hole for passage therethrough of a sewing needle moving up and down, the needle plate construction characterized in that
the needle plate has a guide hole provided near a front surface of the sewing machine and in communication with the needle hole, the guide hole being located at a position deviated from an up-and-down movement trajectory of the sewing needle substantially in the rotating direction of a rotary hook of the sewing machine, and that
the needle plate has a groove portion provided in front of the needle hole and extending from the guide hole in a direction opposite to the rotating direction of the rotary hook, the groove portion opening upward and at a part thereof leading to the guide hole and having a bottom surface and side walls,
wherein a lower thread having moved out of the rotary hook to extend upward is guided to a front of the needle hole through the guide hole via the groove portion.