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1.发明公开公开(公告)号：US20240200250A1
公开(公告)日：2024-06-20
申请号：US18554907
申请日：2022-03-18
申请人： JANOME Corporation
发明人： Yoshitaka Bamba , Tomoro Mifuji
IPC分类号： D05B87/02
CPC分类号： D05B87/02
摘要： The needle-threading device includes a needle-threading shaft that is parallel to a vertically-moving needle bar and that is vertically movable and rotatable, a control lever that lowers and rotates the needle-threading shaft, a needle-threading end section provided at a lower end of the needle-threading shaft and having a needle-threading hook, and a needle-threading stopper provided at the needle bar and defining a lowered stoppage position of the needle-threading shaft. The needle-threading end section lowered by operating the control lever rotates at the lowered stoppage position and causes the needle-threading hook to be inserted through a needle hole of one needle of a plurality of needles provided at the needle bar. The needle-threading end section includes a sliding body that vertically moves relative to the needle-threading shaft, a positioning body slidable relative to the sliding body, and an interlocking mechanism that vertically moves the sliding body.
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公开(公告)号：US11926945B2
公开(公告)日：2024-03-12
申请号：US17709416
申请日：2022-03-31
申请人： JANOME Corporation
发明人： Tomoro Mifuji
摘要： An upper decoration mechanism and a sewing machine without requiring an operation of detaching the upper decoration mechanism from the sewing machine without reducing workability even when performing a double chain stitch not using a decoration thread. The upper decoration mechanism provided on a sewing machine includes an expansion retraction mechanism configured to switch a spreader between an expanded state where the spreader cooperates with needles for performing an upper decoration sewing and a retracted state where the spreader is separated from the needles.
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