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1. 发明授权

US5775239A Double cam drives for a buttonhole sewing machine 失效
标题翻译：双孔凸轮驱动器，用于钮扣缝纫机
公开(公告)号：US5775239A
公开(公告)日：1998-07-07
申请号：US779107
申请日：1997-01-06
申请人： Rudy Papajewski, deceased , Gerd Papajewski , Louis Tocchio
发明人： Rudy Papajewski, deceased , Gerd Papajewski , Louis Tocchio
IPC分类号： D05B3/06
CPC分类号： D05B3/06
摘要： A double cam drive operates on a main drive shaft of a buttonhole sewing machine is disclosed. Three double cams are arranged sequentially on the main drive shaft. A first double cam operates a looper mechanism, a second double cam drives a feeder, and a third double cam drives a needle bar mount for operating a bite mechanism to deflect a needle housing to make side stitches and tacks. Each double cam has a cam collar and two generally-circular concentric cams. Each cam of a double cam is positioned off-center on the cam collar with one cam positioned opposite the other. The three double cams have mounted collars at axial ends for securing the double cams to the shaft. Spacers are positioned between any two adjacent double cams for creating the proper spacing between the cams. A follower plate is pivoted on a stub shaft and has two rollers. The first roller contacts an outer surface of the first double cam and the second roller contacts an outside surface of the second double cam. The first roller is positioned directly opposite the second roller. The positioning of the cams on the cam collars and the positioning of the rollers allows the cams to remain in constant contact with a given drive mechanism.
摘要翻译：公开了一种双扣轮驱动器，其操作在纽扣孔缝纫机的主驱动轴上。三个双凸轮依次设置在主驱动轴上。第一双凸轮操作弯针机构，第二双凸轮驱动进给器，并且第三双凸轮驱动针杆安装件，用于操作咬合机构以使针壳偏转以制造侧针和钉。每个双凸轮具有凸轮轴环和两个大致圆形的同心凸轮。双凸轮的每个凸轮位于凸轮轴环的偏心处，一个凸轮与另一个相对定位。三个双凸轮在轴向端部安装了轴环，用于将双凸轮固定到轴上。间隔件位于任何两个相邻的双凸轮之间，用于在凸轮之间产生适当的间距。随动板在短轴上枢转并具有两个辊。第一辊接触第一双凸轮的外表面，第二辊接触第二双凸轮的外表面。第一辊定位成与第二辊直接相对。凸轮在凸轮轴环上的定位和滚子的定位允许凸轮与给定的驱动机构保持恒定的接触。

2. 发明授权

US5865132A Looper drive for a buttonhole sewing machine 失效
标题翻译：打孔机为钮扣缝纫机
公开(公告)号：US5865132A
公开(公告)日：1999-02-02
申请号：US604254
申请日：1996-02-21
申请人： Rudy Papajewski, deceased , Gerd Papajewski
发明人： Rudy Papajewski, deceased , Gerd Papajewski
IPC分类号： D05B3/06 , D05B57/32 , D05B5/08
CPC分类号： D05B3/06 , D05B57/32
摘要： A looper drive assembly for a buttonhole sewing machine includes a long arm which is driven by a double cam, followers and an oscillating plate at one end and the arm generally reciprocates longitudinally. V-shaped plates are pivoted at a second end of the arm. Ends of the V-shaped plates are connected to rocking links which carry the looper needles. The links are pivoted on shafts and support the V-shaped plates and the second end of the arm. As the arm reciprocates, the V-shaped plates swing, pull and push lower ends of the link and oscillate the links around shafts for alternating engagement of the looping needles with thread carried through a fabric by a main needle.
摘要翻译：用于钮扣缝纫机的活套器驱动组件包括由双凸轮，从动件和一端的摆动板驱动的长臂，并且所述臂通常纵向往复运动。 V形板在臂的第二端枢转。 V形板的端部连接到携带打针针的摇摆连杆。链节在轴上枢转并支撑V形板和臂的第二端。当臂往复运动时，V形板摆动，拉动并推动连杆的下端，并使链节围绕轴摆动，以使环形针与通过主针穿过织物的线交替接合。

3. 发明授权

US5819674A Bight mechanism for a buttonhole sewing machine 失效
标题翻译：扣眼缝纫机的机构
公开(公告)号：US5819674A
公开(公告)日：1998-10-13
申请号：US716536
申请日：1996-09-19
申请人： Rudy Papajewski, deceased , Gerd Papajewski
发明人： Rudy Papajewski, deceased , Gerd Papajewski
IPC分类号： D05B3/06
CPC分类号： D05B3/06
摘要： Bight stitches at sides and bar tack stitches at ends of a buttonhole site are formed by periodically oscillating a needle bar holder over lesser and greater angles while a needle is in an up position. The needle bar holder is fixed to a horizontal transverse shaft. One end of a long, generally vertical arm is clamped to the shaft, and a generally horizontal link is pivoted to a lower end of the arm and to an adjustment slide in an upper arm of the inverted Y-shaped follower plate. The Y-shaped follower plate is pivoted on a central horizontal pivot. A double cam engages cam follower rollers oppositely extending from lower ends of the Y-shaped follower plate. Periodically, while the needle is up, the cams move the follower plate back and forth.
摘要翻译：在针孔位置的端部处的侧面上的弯曲针迹和针钉线圈通过在针处于向上位置时在较小和更大的角度周期性地摆动针杆保持架而形成。针杆支架固定在水平横轴上。长的大体上垂直的臂的一端被夹紧在轴上，大致水平的连杆枢转到臂的下端和倒置的Y形随动板的上臂中的调节滑块。 Y形随动板在中心水平枢轴上枢转。双凸轮接合从Y形从动板的下端相对延伸的凸轮从动辊。周期性地，当针向上时，凸轮来回移动从动板。

4. 发明授权

US5802999A Stop mechanism for a buttonhole sewing machine 失效
标题翻译：扣眼缝纫机的止动机构
公开(公告)号：US5802999A
公开(公告)日：1998-09-08
申请号：US779126
申请日：1997-01-06
申请人： Rudy Papajewski, deceased , Gerd Papajewski
发明人： Rudy Papajewski, deceased , Gerd Papajewski
IPC分类号： D05B3/06 , D05B69/22
CPC分类号： D05B69/22 , D05B3/06
摘要： A stop cam is positioned on the main drive shaft of the buttonhole sewing machine. A stop lever moves axially between an engaged and a disengaged position. A heavy compression spring absorbs machine kinetic energy when the stop lever is in contact with the stop cam. A slide bar is positioned on one side of a lower end of the stop lever to hold the stop lever away from the stop cam. A spring positioned on the stop lever, opposite the slide bar, moves the stop lever into alignment with the stop cam. The tripping of a pedal moves the slide bar away from the stop lever thereby allowing the spring to move the stop lever into an engaged position. After substantial slowing, reaching the maximum displacement and spring loading, the cam presents a low flat surface to the stop lever. The spring pulls the lever against the flat and any remaining kinetic energy is too little for the cam to continue turning and raise the stop lever. The asymmetrical shape of the stop cam and the shape of the stop lever allows the sewing machine to come to rest in a predefined needle-up position. The stop bolt and spring housing are adjustable to provide exact stopping force and position.
摘要翻译：止动凸轮位于扣眼缝纫机的主驱动轴上。止动杆在接合位置和脱离位置之间轴向移动。当止动杆与止动凸轮接触时，重型压缩弹簧吸收机器的动能。滑动杆位于止动杆的下端的一侧，以将止动杆保持在远离止动凸轮的位置。位于止动杆上的弹簧，与滑杆相对，使止动杆与止动凸轮对准。踏板的跳闸将滑杆从止动杆移开，从而允许弹簧将止动杆移动到接合位置。在显着减速之后，达到最大位移和弹簧加载，凸轮呈现一个较低的平坦表面到止动杆。弹簧将杠杆靠在平面上，任何剩余的动能太小，不能使凸轮继续转动并提升止动杆。止动凸轮的不对称形状和止动杆的形状允许缝纫机在预定的上针位置中静止。止动螺栓和弹簧壳体可调，以提供精确的止动力和位置。

5. 发明授权

US5752455A Clutch mechanism for a buttonhole sewing machine 失效
标题翻译：扣眼机的离合器机构
公开(公告)号：US5752455A
公开(公告)日：1998-05-19
申请号：US710954
申请日：1996-09-24
申请人： Rudy Papajewski, deceased , Gerd Papajewski
发明人： Rudy Papajewski, deceased , Gerd Papajewski
IPC分类号： D05B3/06 , D05B69/12 , D05B69/00
CPC分类号： D05B69/125 , D05B3/06
摘要： A buttonhole sewing machine drive motor is turned on with an on switch. A large foot pedal engages the drive pulley on the motor and drives a V-belt. The V-belt drives a pulley and a timing pulley, which in turn drives a timing belt. The timing belt drives a clutch timing pulley, which freely rotates around a main drive shaft of the buttonhole sewing machine. When a small foot pedal is pressed downward, an air-activated over-the-center toggle connection moves a slide bar which moves a clutch switch spring. Parallel extension on the clutch switch spring move thrust washers and an interposed thrust bearing. The thrust washers compress a clutch disc assembly which engages the clutch timing pulley. A switch bushing is locked to the clutch disc assembly, and brake springs in a hand wheel assembly are locked to the switch bushing. The brake springs engage a hand wheel disc which is connected to a hand wheel and which is connected to an end of the main drive shaft for turning the drive shaft. When the engagement force on the clutch switch spring is removed, the clutch assembly ceases to rotate with the clutch timing pulley, which continues to freely rotate while the drive shaft is stopped. The hand wheel assembly may be used to turn the drive shaft.
摘要翻译：扣眼缝纫机驱动电机用开关打开。大脚踏板与电机上的驱动滑轮接合并驱动V形皮带。 V型皮带驱动皮带轮和同步皮带轮，从而驱动同步皮带。同步皮带驱动离合器正时皮带轮，该皮带轮围绕扣眼缝纫机的主驱动轴自由旋转。当一个小脚踏板向下压时，一个空气启动的超中心肘节连接移动一个移动离合器开关弹簧的滑杆。离合器开关弹簧平行延伸移动止推垫圈和推力轴承。止推垫圈压缩与离合器正时皮带轮接合的离合器盘组件。开关衬套被锁定到离合器盘组件，并且手轮组件中的制动弹簧被锁定到开关衬套。制动弹簧接合手轮盘，该手轮盘连接到手轮，并连接到主驱动轴的端部以转动驱动轴。当离合器开关弹簧上的接合力被去除时，离合器组件将随着离合器正时滑轮停止旋转，离合器正时滑轮在驱动轴停止时继续自由旋转。手轮组件可用于转动驱动轴。

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