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2. 发明专利

JP2002360962A YARN FLOAT SEWING DEVICE AND METHOD 失效
公开(公告)号：JP2002360962A
公开(公告)日：2002-12-17
申请号：JP2001175846
申请日：2001-06-11
申请人： JUKI KK
发明人： YOSHIDA FUMIHIKO
IPC分类号： D05B63/02 , D05B3/14 , D05B19/12
摘要： PROBLEM TO BE SOLVED: To provide a yarn float sewing device for performing yarn float sewing without limiting yarn floating amounts. SOLUTION: A button sewing machine 1 vibrating a needle relatively to the sewing needle 3 is provided with at least one of a needle vibrating means for vibrating a sewing needle 3 and a button feeding means capable of moving a button in the horizontal direction. This yarn float sewing device is disposed on the above button sewing machine, and provided with a loop spreading pin 71 drawing substantially horizontally above a button above the button, a pulse motor 72 for reciprocating the loop spreading pin 71 in the needle vibrating direction to cross above the needle drop position in a button hole, and a control part 73 for controlling the drive of the pulse motor 72 to reciprocate the loop spreading pin 71 in the needle vibrating direction at every needle vibration.

3. 发明专利

JP2002282571A LOOPER THREAD TAKE-UP LEVER DEVICE 审中-公开
公开(公告)号：JP2002282571A
公开(公告)日：2002-10-02
申请号：JP2001362778
申请日：2001-11-28
申请人： JUKI KK
发明人： FUJITA KUNIJI
IPC分类号： D05B63/02 , D05B63/00
摘要： PROBLEM TO BE SOLVED: To provide a looper thread take-up lever device excellent in workability and never disturbing sewing work. SOLUTION: This looper thread take-up lever device 1 is provided with a thread take-up lever shaft 5 rotated by the transmission of the rotation of a lower shaft 20 driven by a sewing machine motor, and a looper thread take-up lever 7 fixed to the thread take-up lever shaft 5 to tighten or loosen a looper thread supplied to a looper by the rotation of the looper thread take-up lever 7. The thread take-up lever shaft 5 is arranged on a worker side within a sewing machine bed 31, and one shaft end of the thread take-up lever shaft 5 is supported by a left bearing 2 protruded from a wall part 31b and opposed to a recessed part 32. The looper thread take-up lever 7 is fixed to this shaft end, and a thread guide means formed of a thread guide base 13 and the like is installed to the left bearing 2.

5. 发明专利

JPH04288193A DEVICE FOR CUTTING OFF LOUPER THREAD IN MULTIPLE NEEDLE CHAIN STITCH MACHINE 失效
公开(公告)号：JPH04288193A
公开(公告)日：1992-10-13
申请号：JP22717091
申请日：1991-09-06
申请人： UNION SPECIAL GMBH
发明人： GIYUNTAA ROOA
IPC分类号： D05B55/02 , D05B29/06 , D05B57/02 , D05B63/02 , D05B65/00 , D05B65/02
摘要： PURPOSE: To continue operation without any trouble in sewing operation by preventing the damage to cloth even in a case when the starting end of a needle thread is short. CONSTITUTION: In a cutting device 40 cutting the looper thread of a multiple needle chainstitch sewing machine, a movable thread catcher 15 picks up the looper thread, which runs between a looper thread guide 27 and the hook part of a looper 28, and forcedly guides this thread to the fastening and cutting device 40 arranged near needles positioned on a left side.

7. 发明专利

JPH0966183A LOOPER THREAD REELING DEVICE 失效
公开(公告)号：JPH0966183A
公开(公告)日：1997-03-11
申请号：JP22534895
申请日：1995-09-01
申请人： YAMATO SEWING MACH CO LTD
发明人： MIZUSAKI TAKASHI , NISHIWAKI ICHIRO , OKABE MASATO
IPC分类号： D05B63/02 , D05B63/00
摘要： PROBLEM TO BE SOLVED: To provide a looper thread reeling device which is arranged so as not to hinder sewing work and can easily perform auxiliary work such as setting of looper thread and an adjustment of a relaxing degree. SOLUTION: A looper thread reeling device 8 is installed in a position separate from a sewing machine bed B on a left side surface facing a needle falling position of a leg part C to support the base end of a sewing machine arm A on the sewing machine bed B. A thread reeling cam 80 is fixed to a rotary shaft projecting from the left side surface of the leg part C, and this rotary shaft is interlocked with and connected to a sewing machine main shaft inside of the sewing machine bed B or an upper shaft inside of the sewing machine arm A inside of the leg part C, and is constituted so as to rotate in synchronism with a vertical movement of needles 1, 1... on the tip of the sewing machine arm A and advance-retreat operation of a looper in the sewing machine bed B.

10. 发明专利

JPS6268486A BOBBIN THREAD SLACKENING MECHANISM OF ZIGZAG SEWING MACHINE 失效
公开(公告)号：JPS6268486A
公开(公告)日：1987-03-28
申请号：JP20952985
申请日：1985-09-20
申请人： MARUZEN SEWING MACHINE
发明人： MIKUNI YOSHIO
IPC分类号： D05B3/02 , D05B63/02

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