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1. 发明公开

US20240175184A1 SEWING MACHINE 审中-公开
公开(公告)号：US20240175184A1
公开(公告)日：2024-05-30
申请号：US18522103
申请日：2023-11-28
申请人： JUKI CORPORATION
发明人： Kuniaki SATO , Tatsuya OGAWA , Yukiyo NOMOTO , Hajime NAKAYAMA , Takahiro HIGA
IPC分类号： D05B55/06 , D05B1/08 , D05B27/10 , D05B29/00 , D05B57/10 , D05B69/12
CPC分类号： D05B55/06 , D05B1/08 , D05B27/10 , D05B29/00 , D05B57/10 , D05B69/12
摘要： A sewing machine that suppresses sewing defects is provided. The sewing machine includes: a sewing needle, held by a needle bar and moving back and forth while holding an upper thread; a shuttle, configured to hold a bobbin around which a lower thread is wound and which is housed in a bobbin case, and cooperating with the sewing needle to form a seam; a presser foot member, configured to press a to-be-sewn article at a sewing position directly below the sewing needle; a feeding mechanism, feeding the to-be-sewn article from the sewing position to a first direction; a needle drive portion, provided separately from a belt drive portion to synchronously move the sewing needle and the presser foot component in the first direction; and a control portion, which controls so that the needle drive portion and the belt drive portion operate independently.

2. 发明公开

US20240175181A1 SEWING MACHINE 审中-公开
公开(公告)号：US20240175181A1
公开(公告)日：2024-05-30
申请号：US18522105
申请日：2023-11-28
申请人： JUKI CORPORATION
发明人： Tatsuya OGAWA , Kuniaki SATO , Hajime NAKAYAMA , Juan ZHANG
IPC分类号： D05B29/02 , D05B1/08 , D05B27/10 , D05B47/04 , D05B57/10
CPC分类号： D05B29/02 , D05B1/08 , D05B27/10 , D05B47/04 , D05B57/10
摘要： A sewing machine that suppresses sewing defects is provided. The sewing machine includes: a sewing needing, held by a needle bar and moving back and forth while holding an upper thread: a shuttle, configured to hold a bobbin which is housed in a bobbin case and around which a lower thread is wound, and cooperating with the sewing needle to form a seam; a presser foot member, configured to press a to-be-sewn article at a sewing position directly below the sewing needle: a pressure adjustment portion, adjusting pressure applied to the to-be-sewn article by the presser foot member; a feeding mechanism, where endless feeding belts for feeding the to-be-sewn article from the sewing position to a first direction are disposed on two sides of a second direction orthogonal to a first direction with respect to the sewing position, the feeding mechanism is provided with a belt drive portion, and the belt drive portion independently drives the feeding belts on one side of the second direction with respect to the sewing position and the feeding belts on another side of the second direction with respect to the sewing position; and a control portion, configured to control the pressure adjustment portion to make a pressure of the presser foot member be corresponding to a difference between a feeding amount of the feeding belts on one side of the second direction with respect to the sewing position and a feeding amount of the feeding belts on another side of the second direction with respect to the sewing position.

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