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公开(公告)号：US5255623A
公开(公告)日：1993-10-26
申请号：US881113
申请日：1992-05-11
申请人： Shuichi Sato , Shirou Ayusawa
发明人： Shuichi Sato , Shirou Ayusawa
IPC分类号： D05B65/06
CPC分类号： D05B65/06
摘要： A wiper for a sewing machine wherein a hook portion formed at the tip end portion thereof comprises an inclined guide portion for contacting an upper thread in the forward stroke of a wiping operation of the wiper so as to guide the upper thread toward the tip end thereof. The wiper has an inclined introduction portion for guiding the upper thread, and has a thread hooking guide portion formed inside the inclined guide portion, for hooking the upper thread.
摘要翻译： 一种用于缝纫机的刮水器，其中形成在其末端部分处的钩部包括：倾斜导向部分，用于在擦拭器的擦拭操作的前行程中接触上线，以便将面线朝向其末端引导 。 刮水器具有用于引导面线的倾斜导入部，并且具有形成在倾斜导向部内的钩挂引导部，用于钩住上线。
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公开(公告)号：US5044290A
公开(公告)日：1991-09-03
申请号：US440839
申请日：1989-11-24
申请人： Shuichi Sato , Shirou Ayusawa
发明人： Shuichi Sato , Shirou Ayusawa
CPC分类号： D05B65/06
摘要： A wiper unit has a supporter secured to the arm of a sewing machine. A stopper is secured to the supporter. A wiper shaft is rotatably supported by the supporter. The stopper restricts the rotation of the shaft. A wiper is mounted on the shaft. The wiper has a wiper arm and a tip end thereof. The tip end has a hook for wiping the tip end of an upper thread. A wiper operation crank is secured to the wiper shaft for adjusting a turning operation thereof relative to the wiper. An operation link is connected by a pin to the operation crank. A driving unit drives the operation crank reciprocally and drives the crank and shaft to turn about the axis of the shaft.
摘要翻译： 刮水器单元具有固定到缝纫机的臂上的支撑件。 止动器固定在支架上。 擦拭器轴由支撑件可旋转地支撑。 止动器限制轴的旋转。 刮水器安装在轴上。 刮水器具有刮水臂及其末端。 尖端具有用于擦拭上线的末端的钩。 刮水器操作曲柄被固定到刮水器轴，用于调节其相对于刮水器的转动操作。 操作连杆通过销连接到操作曲柄。 驱动单元相互驱动操作曲柄并驱动曲柄和轴绕轴的轴线转动。
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公开(公告)号：US5027732A
公开(公告)日：1991-07-02
申请号：US437244
申请日：1989-11-16
申请人： Shuichi Sato , Shirou Ayusawa
发明人： Shuichi Sato , Shirou Ayusawa
CPC分类号： D05B65/06
摘要： A thread end holding unit of a sewing machine employs a needle thread gripping puller driven so as to be positioned either at a thread catch position or a return position. The puller has a hook portion at a tip end thereof adapted for catching a needle thread extended from a needle when the needle thread gripping puller is positioned at the thread catch position. The needle thread is caught and held by the hook at the return position. First and second holding members are respectively fixedly mounted on a supporter fixed to the arm. These holding members have press portions forcibly pushed elastically by both sides of the needle thread gripping puller for pressing and holding the thread end of the needle thread caught by the hook when the hook portion is positioned at the return position.
摘要翻译： 缝纫机的螺纹端部保持单元采用被驱动的面线夹持拉杆，以便被定位在线扣位置或返回位置。 牵引器在其前端具有钩部，其适于在所述针线夹紧拉杆位于所述线锁定位置时捕捉从针延伸的针线。 钩针在返回位置被抓住并保持。 第一和第二保持构件分别固定地安装在固定到臂上的支撑件上。 这些保持构件具有由针线夹持拉手的两侧被弹性地推压的按压部，用于在钩部位于返回位置的状态下按压并保持钩挂钩的线的螺纹端。
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公开(公告)号：US5025738A
公开(公告)日：1991-06-25
申请号：US437230
申请日：1989-11-16
申请人： Shuichi Sato , Shirou Ayusawa
发明人： Shuichi Sato , Shirou Ayusawa
CPC分类号： D05B65/00
摘要： A needle thread drawing device utilizes a thread end holding device rotatably mounted on an arm of a sewing machine. A needle thread gripping puller which can be disposed to be at a thread catch position or a return position has a hook portion at a tip end thereof for catching a needle thread extended downward from a needle hole of a needle. A needle thread drawing member is mounted swingably on the side of the arm and has a hook portion at a tip end thereof. A cam member is positioned at the side of the thread end holding device and is rotatable in synchronism with the puller for rotatably swinging the needle thread drawing member so that the hook portion can hold the needle thread when the needle thread holding portion is positioned over the needle hole of the needle and can draw a thread end of the needle thread when the hook portion of the puller is positioned under the needle hole of the needle when the puller is disposed in the thread catch position.
摘要翻译： 针刺装置利用可旋转地安装在缝纫机的手臂上的线端保持装置。 可以设置在线扣位置或返回位置的针线夹持器在其前端具有钩部，用于捕捉从针的针孔向下延伸的针线。 针刺构件可摆动地安装在臂的一侧，并且在其尖端具有钩部。 凸轮构件位于螺纹端部保持装置的侧面，并且可与拉出器同步旋转，以便可旋转地摆动面线引导构件，使得当面线保持部分位于 当牵引器设置在线锁定位置时，当牵引器的钩部位于针的针孔下方时，可以在针的针孔上画出线端。
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公开(公告)号：US5431119A
公开(公告)日：1995-07-11
申请号：US133233
申请日：1993-10-07
CPC分类号： D05B65/06
摘要： A thread end holding device for a sewing machine comprises a needle thread catching puller which is swingably supported on the side of a sewing machine arm and is driven to swing between a thread catching position and a home position, and which comprises a hook portion at the tip end thereof for catching a needle thread extending from a needle when said needle thread catching puller is at its thread catching position and holds the needle thread at its home position and first and a second holding members which are respectively mounted on the side of the sewing machine arm and is disengaged from the both clamping portions when the needle thread catching puller is at its thread catching position and enters a gap between the both clamping portions at the hook portion thereof so as to elastically clamp the end of the needle thread between the clamping portions when the needle thread catching puller is at its home position. As a result, the needle thread catching puller and the first and second holding members can have simple shapes and high rigidity, and moreover can be accommodated in the side of the sewing machine arm so that the sewing machine may be compact in size. Moreover, they do not obstruct handling a cloth etc. on a needle throat.
摘要翻译： 一种缝纫机的线端保持装置，其特征在于，包括：一个可旋转地支撑在缝纫机臂的侧面上并被驱动以在一个牵引位置和一个起始位置之间摆动的面线牵引器， 当所述针线捕捉拉拔器处于其捕捉位置并且将所述针线保持在其初始位置时，用于捕捉从针延伸的针线的前端，并且分别安装在缝纫机侧面上的第一和第二保持构件 机器臂，并且当所述针线捕捉拉拔器处于其捕捉位置时从所述两个夹持部脱离，并且在所述钩部处进入所述两个夹持部之间的间隙，以将所述针线的端部弹性地夹紧在所述夹紧部 当针线抓取器处于其原始位置时的部分。 其结果是，上述针线牵引器以及第一保持构件和第二保持构件具有简单的形状和高刚性，并且还能够容纳在缝纫机臂的侧面，使缝纫机的尺寸紧凑。 此外，它们不妨碍在针刺处理布等。
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公开(公告)号：US5020462A
公开(公告)日：1991-06-04
申请号：US395835
申请日：1989-08-18
CPC分类号： D05B65/00
摘要： A slackened needle thread assuring unit includes a thread tension member mounted on a side wall of a frame secured to the bed of a sewing machine. A thread takeup is positioned above the thread tension member. A needle/bobbin thread cutter is positioned apart from and under the frame for cutting a needle thread. A thread end holder holds an end of the thread to be cut by the needle/bobbin thread cutter. A thread guide extending across the front portion of the frame has one end supported by a support plate and the other free end defining a hook. A drive mechanism supported by the support plate reciprocally moves the hook in the direction substantially perpendicular to the threading direction of the needle thread. The hook hooks the thread threaded into the thread tension member, the thread takeup, and the needle
摘要翻译： 松弛的针线保证单元包括安装在固定到缝纫机的床上的框架的侧壁上的线张力构件。 螺纹卷取位于线张力构件上方。 针/底线切割器定位在框架下方和下方，用于切割针线。 螺纹端保持器由针/底线切割器保持要被切割的线的端部。 延伸穿过框架前部的导纱器导向件具有由支撑板支撑的一端，另一个自由端限定钩子。 由支撑板支撑的驱动机构沿着与针线的螺纹方向大致垂直的方向往复地移动钩。 钩钩将螺纹拧入螺纹张紧构件，螺纹接头和针头
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