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公开(公告)号：US4462324A
公开(公告)日：1984-07-31
申请号：US549029
申请日：1983-11-07
申请人： Robert H. Larsen
发明人： Robert H. Larsen
CPC分类号： D05B59/00
摘要： A one-piece plunger with a control button at one end and a driving paddle at the other end is located in a one-piece sewing machine bobbin. The bobbin is provided with crossed slots, one of which normally has the paddle therein and which is dead ended to provide a stop limiting spring biased upward movement of the plunger in the bobbin, the other slot being open ended to permit the paddle to be moved therethrough during assembly of the plunger in the bobbin.
摘要翻译： 一体式活塞，其一端具有控制按钮，另一端具有驱动桨，位于一体式缝纫机筒管中。 梭芯设有交叉的槽，其中一个通常在其中具有桨，并且其处于死角，以提供止动限制弹簧偏置柱塞在筒管中的向上运动，另一个槽是敞开的，以允许桨移动 在柱塞在筒管中的组装期间穿过其中。
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2.发明授权
公开(公告)号：US4776292A
公开(公告)日：1988-10-11
申请号：US130033
申请日：1987-12-07
申请人： Donald Rodda , Robert H. Larsen
发明人： Donald Rodda , Robert H. Larsen
CPC分类号： D05B51/00
摘要： A demand responsive sewing machine thread take-up construction is disclosed accommodating a shortened thread introduction path which facilitates operator interface and reduces construction costs while providing for improved reliability and uniformity of thread manipulation by the take-up.
摘要翻译： 公开了一种响应需求的缝纫机螺纹卷取结构，其容纳缩短的引导路径，其有助于操作者界面并降低施工成本，同时提供通过卷取提高螺纹操纵的可靠性和均匀性。
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公开(公告)号：US4545311A
公开(公告)日：1985-10-08
申请号：US637193
申请日：1984-08-02
申请人： Anthony Giaimo , Robert H. Larsen , Donald Rodda
发明人： Anthony Giaimo , Robert H. Larsen , Donald Rodda
CPC分类号： D05B47/00
摘要： A thread tensioning device, wherein a helical spring of varying diameter is deflected by a control knob with a defined operating range to increase tension in sewing thread moved through the device, is provided with a member which is formed to engage one or more intermediate coils of the spring while the spring is deflected more than a predetermined amount by the control knob and thereby increase thread tension obtainable over a portion of the operating range of the knob.
摘要翻译： 一种线张紧装置，其中具有不同直径的螺旋弹簧由具有限定的操作范围的控制旋钮偏转以增加移动通过装置的缝合线中的张力，该构件形成为接合一个或多个中间线圈 弹簧通过控制旋钮偏转超过预定量，从而增加在旋钮操作范围的一部分上可获得的线张力。
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公开(公告)号：US4466371A
公开(公告)日：1984-08-21
申请号：US512850
申请日：1983-07-11
申请人： Robert H. Larsen
发明人： Robert H. Larsen
CPC分类号： D05B47/00
摘要： A thread tensioning module and a cover for a thread holder and cooperating take-up are mounted adjacent to one another in a front opening in the bracket arm housing of a sewing machine. The module and cover form interconnecting thread receiving slots in the bracket arm opening providing for the movement of thread into thread tensioning mechanism carried by the module and into the thread holder as the machine is threaded by an operator.
摘要翻译： 一个线张紧模块和一个用于螺纹夹持器和配合卷取器的盖子彼此相邻地安装在缝纫机的支架臂壳体中的前开口中。 模块和盖形成在支架臂开口中互连螺纹接收槽，用于当机器由操作者穿过螺纹时将螺纹移动到由模块承载的螺纹张紧机构中并进入螺纹保持器。
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公开(公告)号：US4453480A
公开(公告)日：1984-06-12
申请号：US512849
申请日：1983-07-11
申请人： Robert H. Larsen , Anthony Giaimo
发明人： Robert H. Larsen , Anthony Giaimo
CPC分类号： D05B47/00
摘要： A thread tensioning module for use on a sewing machine is provided with a plastic housing and with mechanism at the rear of the housing for receiving and applying frictional resistance to the movement of thread therethrough. The mechanism includes a pair of thread engageable members, one of which extends beyond the other and the side wall of the module on the thread entering side thereof to catch and enable thread to be positioned between the members.
摘要翻译： 在缝纫机上使用的线张力模块设置有塑料壳体，并且具有位于壳体后部的机构，用于接收并施加对线穿过其的运动的摩擦阻力。 该机构包括一对螺纹可接合构件，其中一个螺纹可接合构件在其进入其侧面的螺纹上延伸超过模具的侧壁和模块的侧壁，以抓住并使螺纹位于构件之间。
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公开(公告)号：US4372502A
公开(公告)日：1983-02-08
申请号：US246531
申请日：1981-03-23
申请人： Robert H. Larsen , Anthony Giaimo
发明人： Robert H. Larsen , Anthony Giaimo
CPC分类号： D05B47/00
摘要： A thread tensioning device for a sewing machine is provided with a rigid beam which pivots on an adjustable fulcrum in engagement with a mounting plate. The device includes an adjustable tension selector movable along the plate and beam for varying the tension on needle thread disposed between the plate and beam.
摘要翻译： 一种用于缝纫机的线张紧装置设置有刚性梁，该刚性梁在可调节的支点上枢转，与安装板接合。 该装置包括可沿着板和梁移动的可调张力选择器，用于改变设置在板和梁之间的针线上的张力。
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公开(公告)号：US5090397A
公开(公告)日：1992-02-25
申请号：US516162
申请日：1990-04-30
摘要： A pile cutter support comprises a pair of sections which engage opposing faces of a pile. Platforms integrally extend from the engagement portions in a generally perpendicular relationship so as to form a guide and a support for a cutter. The sections are pivotal between a deployed position wherein the sections are engageable against adjacent faces of the pile and a folded compact carrying mode. A ratchet belt is employed to secure the support at a fixed vertical position of the pile.
摘要翻译： 绒头切割器支撑件包括与桩的相对面接合的一对部分。 平台以大致垂直的关系从接合部分一体地延伸，以便形成用于切割器的引导件和支撑件。 所述部分在展开位置之间枢转，其中所述部分可与所述绒毛的相邻面接合并且具有折叠的紧凑携带模式。 使用棘轮带将支撑件固定在桩的固定垂直位置。
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公开(公告)号：US4733622A
公开(公告)日：1988-03-29
申请号：US17951
申请日：1987-02-24
申请人： Robert H. Larsen , Jan Szostak
发明人： Robert H. Larsen , Jan Szostak
摘要： A needle thread end holder for a sewing machine having bobbin thread replenishing mechanism in which an annular groove formed in the presser securing screw accomodates a stretched rubber "O" ring so as to apply only a limited frictional resistance to a thread introduced beneath the "O" ring insufficient to abort a bobbin thread replenishing operation.
摘要翻译： 一种用于缝纫机的针线端保持器，具有底线补充机构，其中形成在压脚固定螺钉中的环形槽适应拉伸的橡胶“O”形环，以便仅对引入“O”的螺纹施加有限的摩擦阻力 “环不足以中止底线补充操作。
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公开(公告)号：US4506614A
公开(公告)日：1985-03-26
申请号：US512833
申请日：1983-07-11
CPC分类号： D05B59/00 , D05B57/143
摘要： A thrust washer on the looptaker shaft of a sewing machine between the underside of a hook body and the top end of a bushing wherein the looptaker shaft is rotatable is provided with thread engageable peripheral flanges, one of which is disposed to extend upwardly into a recess formed in the hook body and the other one of which extends downwardly over the top edge of the bushing.
摘要翻译： 在钩体的下侧和衬套的顶端之间的缝纫机的取出轴上的止推垫圈设置有可啮合的周边凸缘，其中一个凸缘设置成向上延伸到凹部 形成在钩体中，另一个在衬套的顶部边缘向下延伸。
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公开(公告)号：US4481897A
公开(公告)日：1984-11-13
申请号：US505009
申请日：1983-06-16
CPC分类号： D05B59/00 , D05B57/143
摘要： A clutch which is engaged to rotate and wind thread on a sewing machine bobbin is provided with clutch parts that include a single bladed paddle, and a member with a pair of crossed paddle receiving through slots, one of which has a chamfered upper edge that substantially widens the mouth of the slot and the other of which is without such chamfered edge.
摘要翻译： 接合在缝纫机线轴上的旋转和卷绕的离合器设置有包括单个叶片桨叶的离合器部件和具有接收通过狭槽的一对交叉桨叶的构件，其中一个具有倒角的上边缘，其基本上 加宽槽的口，另一个没有这样的倒棱。
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