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    • 3. 发明授权
    • Zigzag sewing machine
    • 曲折缝纫机
    • US4771715A
    • 1988-09-20
    • US98526
    • 1987-09-18
    • Hidetaka Inagaki
    • Hidetaka Inagaki
    • D05B3/02D05B57/14
    • D05B3/02
    • A zigzag sewing machine includes a frame, a needle bar supporting member mounted on the frame for swinging motion about a horizontal fixed axis, and a needle bar carried by the needle bar supporting member for endwise reciprocation. A rotary member is rotatably supported by the frame for rotary motion about an axis parallel to the horizontal fixed axis, and a connecting rod is connected eccentrically and pivotally at the upper end thereof to one side of the rotary member. The connecting rod is connected pivotally at the lower end thereof to the needle bar at a position below the upper end. At a moment when the shuttle hook of a shuttle catches a loop, the upper end of the connecting rod and the shuttle hook of the shuttle move in a direction opposite to the direction of swinging motion of the needle bar supporting member. When the shuttle hook catches a loop, the lower end of the connecting rod is located above the horizontal fixed axis about which the needle bar supporting member swings. Accordingly, when the shuttle hook catches a loop with the needle located at the opposite ends of its lateral swinging motion range, the needle is located at substantially the same height.
    • 锯齿缝纫机包括框架,安装在框架上的针杆支撑构件,用于围绕水平固定轴线摆动运动;以及针杆,由针杆支撑构件承载以进行往复运动。 旋转构件由框架可旋转地支撑,用于围绕平行于水平固定轴线的轴线旋转运动,并且连杆在其上端偏心地和可枢转地连接到旋转构件的一侧。 连杆在其下端枢转地连接到针杆,位于上端下方。 在梭子的梭钩捕捉回路的时刻,连杆的上端和梭子的梭钩沿着与针杆支撑构件的摆动运动方向相反的方向移动。 当梭钩钩住回路时,连杆的下端位于水平固定轴线上方,针杆支撑件绕其摆动。 因此,当穿梭钩钩住针位于其横向摆动运动范围的相对端的环时,针位于基本上相同的高度。
    • 6. 发明授权
    • Thread take-up device for a sewing machine
    • 一台缝纫机的卷线装置
    • US4736698A
    • 1988-04-12
    • US948172
    • 1986-12-31
    • Hidetaka Inagaki
    • Hidetaka Inagaki
    • D05B49/02D05B49/00
    • D05B49/02
    • A thread take-up device comprising a loop tightening member adapted to reciprocate within a predetermined range limited by a thread slackening limit position where the loop tightening member is located when a thread loop is expanded to its maximum extent by a loop-seizing member, and a loop tightening limit position for tightening the thread loop; and a movable member adapted to reciprocate within a predetermined range limited by a stopping position defined within the range of reciprocation of the loop tightening member above the loop tightening limit position, and a position corresponding to the thread slackening limit position of the loop tightening member. The respective loci of the recess for engaging the needle thread of the loop tightening member, and the thread catch of the movable member overlap each other. The movable member is normally resiliently biased toward the stopping position by the substantially constant resilience of a resilient part thereof or by means of a separate resilient member, so that a predetermined length of the needle thread is secured during the threading operation irrespective of the stopping position of the loop tightening member, and the thread loop can be smoothly released from the loop-seizing member.
    • 一种卷绕装置,包括一个环形紧固构件,该环形紧固构件适于在由环形扣环构件将线环扩展到其最大程度的情况下由环紧固构件所位于的线松弛极限位置限制的预定范围内往复运动;以及 用于拧紧螺纹环的回丝紧固极限位置; 以及可动构件,其适于在限定在所述环紧固构件的往复运动范围内限定的停止位置限定的预定范围内,在所述环紧固极限位置之上,以及与所述环紧固构件的所述螺纹松弛极限位置相对应的位置。 用于接合环紧固构件的针刺的凹部的相应轨迹和可动构件的线锁相互重叠。 通过其弹性部分的基本上恒定的弹性或通过单独的弹性构件,可动构件通常被弹性地偏置到止动位置,使得在螺纹操作期间确保预定长度的针线,而与停止位置无关 的环形紧固构件,并且线环可以从环形扣紧构件平滑地释放。