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公开(公告)号：US11434592B2
公开(公告)日：2022-09-06
申请号：US16152798
申请日：2018-10-05
Applicant: Hamer-Fischbein LLC
Inventor： Pradeep Mahadevan
Abstract: The length of a sewing machine stitch is adjustable by varying the effective length of a first bar of a multi-bar linkage operably secured to a feed dog of the sewing machine. The effective length of the first bar is defined between an anchor point and a pivot point, with the pivot point being secured to a slider configured for movement along the length of the first bar. The slider comprises a pinion gear configured to engage a gear rack of the first bar, such that rotation of the pinion gear causes movement of the slider and the pivot point relative to the anchor point. Moreover, to accommodate the adjustable stitch length, the sewing machine additionally comprises an adjustable looper thread eyelet configured to adjust the length of the looper thread path to accommodate increased tension or slack in the looper thread due to the changed stitch length.
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2.发明授权Apparatus and lower thread winding-spool for detecting the ending region of lower thread of sewing machine 有权用于检测缝纫机下线结束区域的装置和下线缠绕线轴公开(公告)号：US08960111B2
公开(公告)日：2015-02-24
申请号：US13821783
申请日：2011-08-11
Applicant: Myung Rai Cho
Inventor： Myung Rai Cho
Abstract: A lower thread ending region detection apparatus prevents problems associated with false stitchings occurring from inability to detect lower thread's exhaustion during sewing operation. The lower thread ending region detection apparatus comprises: light control unit, which contacts a part of lower thread wound on a thread bobbin and activates or inactivates at least one of the functions of emitting light, reflecting light, passing light and blocking light, due to the effect of the physical movement force generated depending on whether the lower thread of the ending region is unwound; light receiving unit, which receives the light transferred out by the light control unit and outputs a detection signal; and control and notification unit, which analyzes the detection signal output from the light receiving unit to determine whether the lower thread has reached the ending region and outputs the result to the user.
Abstract translation: 下线结束区域检测装置防止在缝制操作期间由于无法检测到底线的疲劳而发生的与假缝相关的问题。 下线结束区域检测装置包括：光控制单元，其接触卷绕在线轴上的下线的一部分，并且由于由于光线控制单元接触到线轴上的下线的一部分而使得发光，反射光，通过光和阻挡光的功能中的至少一个由于 根据终端区域的下线是否解除产生的物理运动力的影响; 光接收单元，其接收由光控制单元传送的光并输出检测信号; 以及控制和通知单元，其分析从光接收单元输出的检测信号，以确定底线是否已经到达结束区域，并将结果输出给用户。
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公开(公告)号：US07162966B2
公开(公告)日：2007-01-16
申请号：US11374338
申请日：2006-03-13
Applicant: Gerard Durville , Roland Beer , Beda Steinacher , Michael Berger
Inventor： Gerard Durville , Roland Beer , Beda Steinacher , Michael Berger
CPC classification number: D05B59/02
Abstract: To determine the thread supply on a lower-thread bobbin (17), holes (19) are arranged in the shape of a spiral in a flange (21) of the bobbin. Light from a light source (35), which is directed towards the flange (21), is reflected only by those holes (19), behind which there is no longer any thread, so that the light beams (36) reach the rear flange (22) and can be reflected therefrom and received by the light receiver (39).
Abstract translation: 为了确定下线筒管（17）上的螺纹供应，孔（19）在筒管的凸缘（21）中以螺旋形布置。 来自朝向凸缘（21）的光源（35）的光仅被那些不再有任何螺纹的那些孔（19）反射，使得光束（36）到达后凸缘 （22），并且可以由其反射并由光接收器（39）接收。
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公开(公告)号：US5003896A
公开(公告)日：1991-04-02
申请号：US286383
申请日：1988-12-16
Applicant: Kazumasa Hara , Yasuro Sano , Mikio Koike , Mitsuru Nishijima
Inventor： Kazumasa Hara , Yasuro Sano , Mikio Koike , Mitsuru Nishijima
CPC classification number: D05B57/08
Abstract: A device for guiding a lower thread in a zigzag stitching sewing machine is provided with a lower thread guiding unit that determines two lower thread drawing positions in accordance with a selected pattern. The lower thread guiding unit includes a lower thread guiding part which, at one of the two positions, acts on the lower thread to guide a lower thread drawing position to a center of a needle amplitude. A lower thread releasing element, at the other of the two positions, cooperates with the lower thread guiding unit to release the lower thread engaged with the lower thread guiding part.
Abstract translation: 在Z字形缝纫缝纫机中引导底线的装置设置有根据所选择的图案确定两个下线描绘位置的下线引导单元。 下线引导单元包括下线引导部，其在两个位置中的一个位置处作用在下线上以将下线描绘位置引导到针幅度的中心。 在两个位置的另一个位置处的下线释放元件与下线引导单元协作以释放与下线引导部分接合的下线。
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公开(公告)号：US4601250A
公开(公告)日：1986-07-22
申请号：US604327
申请日：1984-04-26
Applicant: James W. Clement
Inventor： James W. Clement
CPC classification number: D05B57/143
Abstract: A rotary loop taker which includes a replaceable loop seizing point mounted on a substantially annular frame, for use in a lock-stitch sewing machine. The loop seizing point has a supporting lug that extends downwardly from immediately behind the base portion of the tapered forward end of the loop seizing point. The supporting lug forms a smoothly curved junction with the base portion of the tapered forward end of the loop seizing point. The rearwardmost position on the smoothly curved junction to which said needle thread loop is pulled by the rotating loop taker lies a first distance from the nearest point on the crack formed by the supporting lug and the wall of the annular frame against which the lug abuts that is sufficient to produce a second distance measured normal to the taut needle thread loop that will avoid snagging the needle thread in the crack just referred to during operation of the sewing machine. The supporting lug has a continuation portion below the smoothly curved junction that is smoothly shaped to avoid letting any needle thread loop that may move downward as it falls slack from the tapered forward end base portion during normal operation of the sewing machine pass either partly or entirely beneath the lug.
Abstract translation: 一种旋转回路接收器，其包括安装在基本上环形的框架上的可更换的环形咬合点，用于锁定缝纫机。 环形咬合点具有从环形咬合点的锥形前端的基部的紧后面向下延伸的支撑凸耳。 支撑凸耳与环形咬合点的锥形前端的基部形成平滑弯曲的连接。 所述针线环由旋转回路接合器牵引到的平滑弯曲的接合处的最后部位置距离由支撑凸耳和环形框架的壁形成的裂纹上的最近点的第一距离，凸耳与该凸耳邻接， 足以产生垂直于绷紧的针线圈测量的第二距离，其将避免在缝纫机操作期间刚才提到的裂缝中阻塞针线。 支撑凸耳具有在平滑弯曲的接合部下方的连续部分，其平滑地成形，以避免在缝纫机的正常操作期间部分或全部通过时可以向下移动的任何可以向下移动的针刺线圈从其从锥形前端基部部分松弛 耳边下方
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Patent Agency Ranking
公开(公告)号：US4537142A
公开(公告)日：1985-08-27
申请号：US534624
申请日：1983-09-22
Applicant: Tokuzo Hirose
Inventor： Tokuzo Hirose
Abstract: A stopper device for a lock stitch sewing machine includes a retaining member having a contacting face and which is moved in the downstream direction, with respect to the rotary running direction of the loop taker, when a needle thread loop passes between a contacting face of the bobbin case and such contacting face of the retaining member. This facilitates the passing of the needle thread loop. An arrangement returns the contacting face of the retaining member in the upstream direction.
Abstract translation: 用于锁缝机的止动装置包括具有接触面的保持构件，当保持构件的接触面相对于环形接收器的旋转行进方向在下游方向上移动时， 梭壳和保持构件的这种接触面。 这有利于针线环的通过。 一种布置使保持构件的接触面向上游方向返回。
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公开(公告)号：US4470360A
公开(公告)日：1984-09-11
申请号：US447200
申请日：1982-12-06
Applicant: Leif Gerlach
Inventor： Leif Gerlach
Abstract: A quilting machine employs bobbin holders which support bobbins each having a conical lower portion ending in a point. A plurality of hooks are driven in an eliptical path to engage and pull down a loop of thread formed by insertion of a needle through a needle plate and the partial withdrawal thereof. The hooks keep the loop open and pull it down so that it passes over the pointed lower end of the bobbin. In order to facilitate engagement of the loop over the bobbin, the bobbins are maintained in sloped fashion. A thread take-up mechanism pulls up the loop of thread with one of the strands of the loop passing behind the bobbin between the bobbin and the bobbin holder to form a lock stitch.
Abstract translation: 绗缝机采用筒管架，其支撑各自具有以点结束的锥形下部的线轴。 多个钩子以椭圆形路径被驱动以接合和拉下由针穿过针板并将其部分抽出而形成的线圈。 钩子保持环路打开并将其向下拉，使其穿过线轴的尖端下端。 为了便于环绕线轴的接合，线轴以倾斜的方式保持。 线卷取机构拉出线圈的环，其中一根线圈通过线轴和线轴架之间的线轴后面，形成锁线。
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公开(公告)号：US4395961A
公开(公告)日：1983-08-02
申请号：US299144
申请日：1981-09-03
Applicant: Reinhold Papajewski , Dietmar Polixa
Inventor： Reinhold Papajewski , Dietmar Polixa
Abstract: A horizontal axis loop taker is actuated by a loop taker shaft supported in an eccentric opening in a rotatable bearing located immediately adjacent the loop taker. In a first position of the rotatable bearing, a sewing needle may extend through an orifice in a throat plate to cooperate with the loop taker in the formation of stitches. In a second position of the rotatable bearing achieved by rotating the bearing in a direction to locate the eccentric opening, and thereby the loop taker, further from the throat plate, the sewing needle will not cooperate with the loop taker. The increased clearance thus provided between the loop taker and throat plate will more readily accommodate thread severing devices.
Abstract translation: 水平轴回路接收器由支撑在位于环接收器紧邻的可旋转轴承的偏心开口中的回路承受器轴致动。 在可旋转轴承的第一位置，缝合针可以延伸穿过喉板中的孔口，以在缝合的形成中与回路接合器配合。 在可旋转轴承的第二位置中，通过使轴承沿着定位偏心开口的方向旋转，从而使回路接合器进一步离开喉板，缝针不会与回路接合器配合。 由此提供的环形接收器和喉板之间的增加的间隙将更容易适应螺纹切断装置。
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公开(公告)号：US2609770A
公开(公告)日：1952-09-09
申请号：US69542646
申请日：1946-09-07
Applicant: UNION SPECIAL MACHINE CO
Inventor： CHRISTENSEN NORMAN V
CPC classification number: D05B57/143 , D05B57/08 , D05B57/36 , D05B73/12
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10.发明授权
公开(公告)号：US5791272A
公开(公告)日：1998-08-11
申请号：US752311
申请日：1996-11-19
Applicant: Kohichi Akahane , Takashi Kondo , Masaki Shimizu , Yoshikazu Kurono , Fumiaki Asano
Inventor： Kohichi Akahane , Takashi Kondo , Masaki Shimizu , Yoshikazu Kurono , Fumiaki Asano
Abstract: A sewing machine including a head portion for mounting a needle with a needle thread; a needle drive motor for driving the needle; a bed portion; and a loop taker module detachably fixed to the bed portion and including: a loop taker for catching a thread loop of the needle thread of the needle; and a loop taker drive motor for driving the loop taker.
Abstract translation: 一种缝纫机，包括用于安装带有针线的针的头部; 用于驱动针的针驱动马达; 床部分; 以及可拆卸地固定到所述床部分的回路接收器模块，包括：用于捕捉针的针线的线环的回路接收器; 以及用于驱动回路接收器的回路接收器驱动电动机。
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