Selective thread cutting device in a sewing machine
    1.
    发明授权
    Selective thread cutting device in a sewing machine 失效
    一种缝纫机中的选择性螺纹切割装置

    公开(公告)号:US5131340A

    公开(公告)日:1992-07-21

    申请号:US533117

    申请日:1990-06-04

    IPC分类号: D05B29/06 D05B57/00 D05B65/00

    CPC分类号: D05B65/00 D05B29/06 D05B57/00

    摘要: A thread cutting device includes a movable knife positioned below a throat plate and movable from a first position to a thread cutting position via a second position for separating the upper fabric thread and the upper needle thread from each other within the range where the movable knife may engage the upper fabric thread and the upper needle thread but may not engage or cut the lower thread. The movable knife includes an engaging portion for engagement with the upper needle thread on the side toward the second position and a cutting edge on the opposite side. The movable knife also includes a thread separating portion for separation of the upper fabric thread and the upper needle thread between the needle hole and the bobbin holder from each other toward the cutting edge and the engaging portion, respectively, when the movable knife moves from the first position to the second position. A fixed knife is positioned below the throat plate for cooperation with the movable knife at the thread cutting position, so that the upper fabric thread can be cut when the movable knife is moved from the second posiiton to the cutting position. A lower thread guide is positioned below the throat plate and operable to selectively move the lower thread existing between the needle hole and the bobbin holder within the range where the movable knife passes when the movable knife moves from the second position to the cutting position, thereby permitting cutting of both the upper fabric thread and the lower thread.

    摘要翻译: 螺纹切割装置包括位于喉板下方并可从第一位置移动到切线位置的可动刀片,用于在可动刀可能的范围内将上部织物线和上部线螺纹彼此分离的第二位置 接合上织物线和上针线,但可能不接合或切割下线。 可动刀包括:接合部,用于与朝向第二位置的一侧上的上线螺纹接合;以及相对侧的切削刃。 可移动刀还包括用于将可动刀从所述刀片移动到所述针孔和所述筒管架之间的所述上织物线和所述上针线分别朝向所述切削刃和所述接合部分分离的螺纹分离部分 第一个位置到第二个位置。 固定刀位于喉板下方,用于在切线位置与可动刀配合,从而当可动刀从第二定位件移动到切割位置时可以切割上织物线。 下导纱器位于喉板下方,并且可操作以在可动刀从第二位置移动到切割位置时在可动刀通过的范围内选择性地移动存在于针孔和筒管架之间的底线,由此 允许切割上部织物线和下线。

    Thread cutting device in sewing machine
    2.
    发明授权
    Thread cutting device in sewing machine 失效
    缝纫机切线装置

    公开(公告)号:US5623887A

    公开(公告)日:1997-04-29

    申请号:US462490

    申请日:1995-06-05

    IPC分类号: D05B65/00 D05B73/12 D05B65/02

    CPC分类号: D05B65/00 D05B73/12

    摘要: A thread cutting device in a sewing machine includes a movable knife which is movable across a space between a throat plate and a shuttle positioned below the throat plate so as to perform a thread cutting operation. A lower thread retreating lever is movable from a waiting position to an operative position for retreating a lower thread taken out from the shuttle to a position out of a thread cutting orbit of the movable knife. The thread cutting device is operable in either a thread cutting mode for cutting both an upper thread and a lower thread or a thread cutting mode for cutting only the upper thread by selectively positioning the lower thread retreating lever at either the waiting position or the operative position during the operation of the movable knife. An actuator and an interlocking mechanism between the actuator and the lower thread retreating lever are provided for driving the lower thread retreating lever. The actuator and the interlocking mechanism are positioned rearwardly of the shuttle.

    摘要翻译: 缝纫机中的线切割装置包括可移动刀片,其可移动地跨越位于喉板下方的喉板和梭子之间的空间,以进行切线操作。 下螺纹后退杆可从等待位置移动到操作位置,以将从梭子取出的下线退回至可移动刀的切线轨道以外的位置。 螺纹切削装置可以在用于切割面线和底线的螺纹切削模式中操作,或者仅通过将下螺纹后退杆定位在等待位置或操作位置处的仅切割面线的螺纹切削模式 在可动刀的操作期间。 驱动器和下螺纹后退杆之间的致动器和互锁机构设置用于驱动下螺纹后退杆。 致动器和互锁机构位于梭子的后方。

    Sewing machine and work fabric holder device thereof
    3.
    发明授权
    Sewing machine and work fabric holder device thereof 失效
    缝纫机及其织物保持器装置

    公开(公告)号:US5553560A

    公开(公告)日:1996-09-10

    申请号:US319038

    申请日:1994-10-06

    IPC分类号: D05B21/00 D05B39/00 D05C9/04

    摘要: A sewing machine serves to form stitches on a curved work fabric by an upper and a lower thread through cooperation of a shuttle and a needle vertically reciprocally driven. The sewing machine includes a holder device for retaining the work fabric to be sewn. The holder device is supported by a support device and is rotatably within a plane in parallel to X axis. The support device is movable in a direction of Y axis. The X axis and the Y axis are perpendicular to each other within a plane extending substantially perpendicular to the driving direction of the needle. The holder device is rotated by an X axis drive mechanism within the plane in parallel to the X axis. The support device is moved by a Y axis drive mechanism in the direction of the Y axis. The holder device serves to retain the work fabric so as to provide a sewable area for substantially the entire circumferential surface of the work fabric.

    摘要翻译: 缝纫机通过梭子和垂直往复驱动的针的协作,通过上下线形成弯曲的工作织物上的线圈。 缝纫机包括用于保持要缝制的工作织物的保持装置。 保持器装置由支撑装置支撑并且可旋转地平行于X轴的平面内。 支撑装置可沿Y轴的方向移动。 X轴和Y轴在基本上垂直于针的行进方向延伸的平面内彼此垂直。 支架装置由X轴驱动机构在平面内平行于X轴旋转。 支撑装置由Y轴驱动机构沿Y轴的方向移动。 保持器装置用于保持工作织物,以便为工作织物的基本上整个圆周表面提供可缝合的区域。

    Embroidery machine
    4.
    发明授权
    Embroidery machine 失效
    刺绣机

    公开(公告)号:US5261338A

    公开(公告)日:1993-11-16

    申请号:US991252

    申请日:1992-12-16

    CPC分类号: D05C9/04 D10B2501/042

    摘要: An embroidery machine includes a sewing head, a rotary ring rotatable around an axis and movable relative to the sewing head, and a work support frame for supporting a work to be embroidered. A lever is pivotaly supported by the rotary ring. An engaging member is mounted on one end of the lever for engagement with an engaging hole formed on the work support frame so as to fix the work support frame in position relative to the rotary ring. A biasing member biases the lever in a direction in which the engaging member engages with the engaging hole.

    摘要翻译: 刺绣机包括缝纫头,可绕轴线旋转并可相对于缝纫头移动的旋转环,以及用于支撑待绣工件的工件支撑框架。 杠杆由旋转环枢转支撑。 接合构件安装在杆的一端,用于与形成在工件支撑框架上的接合孔接合,以便将工件支撑框架相对于旋转环固定就位。 偏置构件沿着接合构件与接合孔接合的方向偏压杆。

    Thread cutting device in a sewing machine
    5.
    发明授权
    Thread cutting device in a sewing machine 失效
    缝纫机中的切线装置

    公开(公告)号:US5755170A

    公开(公告)日:1998-05-26

    申请号:US712492

    申请日:1996-09-11

    IPC分类号: D05B65/02 D05B65/00 D05B73/12

    CPC分类号: D05B65/00 D05B73/12

    摘要: A thread cutting device in a sewing machine includes a fixed knife and a movable knife cooperating with each other to cut a thread. The movable knife is movable to bring a part of the thread to extend below the fixed knife for the cutting operation. A thread protection member is operable to support the thread so as to prevent the thread from breakage prior to the cutting operation through cooperation between the fixed knife and the movable knife. The thread protection member is formed separately from the fixed knife.

    摘要翻译: 缝纫机中的线切割装置包括固定刀和可动刀,彼此配合以切割线。 可移动刀是可移动的,以使一部分螺纹延伸到固定刀下方用于切割操作。 螺纹保护构件可操作以支撑螺纹,以便通过固定刀和可动刀之间的协作来防止螺纹在切割操作之前破裂。 螺纹保护构件与固定刀分开形成。

    Device for driving a thread take-up lever in a multi-head sewing machine
    6.
    发明授权
    Device for driving a thread take-up lever in a multi-head sewing machine 失效
    用于在多头缝纫机中驱动线牵引杆的装置

    公开(公告)号:US4924789A

    公开(公告)日:1990-05-15

    申请号:US369640

    申请日:1989-06-21

    CPC分类号: D05B49/02 D05C11/00 D05C11/10

    摘要: A device for driving a thread take-up lever in a multi-head sewing machine having a plurality of sewing heads, one or more thread take-up levers each mounted on a respective head, and a main shaft for driving the heads. The device comprises a movement converting mechanism located within each head for converting rotational movement of the main shaft into reciprocating movement thereof, a transmission control mechanism operatively associated with the movement converting mechanism for transmitting and disconnecting the reciprocating movement produced by the movement converting mechanism to one of the thread take-up levers selected for sewing operation, and a retaining mechanism for retaining the selected take-up lever in a predetermined position when the reciprocating movement of the movement converting mechanism is disconnected from the selected take-up lever by the transmission control mechanism.

    摘要翻译: 一种用于在具有多个缝纫头,一个或多个安装在相应头部上的一个或多个线取出杆以及用于驱动头部的主轴的多头缝纫机中驱动线取卷杆的装置。 该装置包括位于每个头部内的运动转换机构,用于将主轴的旋转运动转换成其往复运动;传动控制机构,与运动转换机构可操作地相关联,用于将由运动转换机构产生的往复运动传递和断开, 用于缝纫操作所选择的线取出杆;以及保持机构,用于当所述移动转换机构的往复运动通过所述变速器控制与所选择的卷取杆断开时,将所选择的卷取杆保持在预定位置 机制。

    Sewing machine
    7.
    发明授权
    Sewing machine 失效
    缝纫机

    公开(公告)号:US07438008B2

    公开(公告)日:2008-10-21

    申请号:US11608414

    申请日:2006-12-08

    申请人: Tomoaki Anezaki

    发明人: Tomoaki Anezaki

    IPC分类号: D05B29/02 D05B29/00

    摘要: Sewing machine includes a needle bar that is vertically moved to perform a sewing operation, a fabric holder supported on the needle bar in such a manner that the fabric holder is vertically movable relative to the needle bar, and an urging member for normally urging downward the fabric holder on the needle bar. The sewing machine further includes a position restricting member for mechanically restricting a position of the fabric holder to prevent unwanted upward movement of the fabric holder having reached a lower dead point along with the vertical movement of the needle bar.

    摘要翻译: 缝纫机包括垂直移动以执行缝合操作的针杆,以针织物支撑的织物保持架,使得织物保持器相对于针杆可垂直移动,以及用于正常向下推动的推动构件 织针架在针杆上。 缝纫机还包括位置限制构件,用于机械地限制织物保持器的位置,以防止随着针杆的垂直运动而达到下死点的织物保持器的不必要的向上运动。