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公开(公告)号：US2730980A
公开(公告)日：1956-01-17
申请号：US45115354
申请日：1954-08-20
Applicant: PFAFF AG G M
Inventor： MARINES BENINK CHRISTIAN JOSEF
IPC: D05B51/00
CPC classification number: D05B51/00
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公开(公告)号：US3658021A
公开(公告)日：1972-04-25
申请号：US3658021D
申请日：1970-08-10
Applicant: PFAFF AG G M
Inventor： HEDEGAARD KRISTEN , LESSMEISTER ANTON
CPC classification number: D05B65/00 , D05B57/265 , D05B73/12
Abstract: Thread cutting device for double stitch sewing machines having a looper turning in a horizontal plane, a bobbin housing secured against turning movements by means of a retaining finger resting against an abutment in the stitch plate, an outlet opening for the looper thread determining the course of the looper thread between stitch plate and bobbin housing and a thread catcher having a point cooperating with a cutter and movable in a horizontal plane where the outlet for the looper thread is disposed below the plane of the surface of the bobbin housing at its wall facing the needle, preferably in the area of the retaining finger, and the point of the thread catcher is movable below the plane of the surface of the bobbin housing between the path of movement of the needle and the retaining finger of the bobbin housing.
Abstract translation: 用于双针缝纫机的螺纹切割装置，其具有在水平面上转动的弯针，通过保持指状物固定抵靠在缝合板中的邻接部分的转动运动的筒管壳体，用于弯针线的出口开口， 针脚板和筒管外壳之间的弯针线和具有与切割器配合的点的线捕获器，并且在水平面中可移动，在该水平面中，弯针线的出口设置在绕线轴壳体的表面的平面的下方， 针，优选地在保持指状物的区域中，并且线捕获器的点可以在针的运动路径和线轴壳体的保持指状物之间在线轴壳体的表面的平面下方移动。
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公开(公告)号：US3628482A
公开(公告)日：1971-12-21
申请号：US3628482D
申请日：1969-12-24
Applicant: PFAFF AG G M
Inventor： WENZ HERBERT , JEHLE FRITZ
CPC classification number: D05B69/125 , Y10T74/20528
Abstract: Linkage device for coupling control bars of sewing machines having a coupling motor and a pedal for controlling the speed of the motor, where the linkage has a latching device connected to one bar that provides the connection between the two bars and where when pressure is applied to both bars by way of an abutment element connected to one of the bars, the device is movable out of latched position and operable to restore the latched position.
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公开(公告)号：US3624735A
公开(公告)日：1971-11-30
申请号：US3624735D
申请日：1970-08-10
Applicant: PFAFF AG G M
Inventor： HEDEGAARD KRISTEN
IPC: D05B65/00
CPC classification number: D05B65/00
Abstract: Thread-cutting device for lock stitch sewing machines having a looper rotating in a horizontal plane, a bobbin housing having an outlet opening for the looper thread which is secured against rotational movements by means of a stop finger below the stitch plate and a thread catcher cooperating with a cutter that rocks in a path of movement disposed perpendicularly to the shaft of the looper, which has a V-shaped incision defining a catcher point having legs disposed in a plane generally parallel to the looper shaft which is movable between the bobbin housing and the retaining finger that extends from the wall surface of the housing laterally and upwardly, where the upper leg of the thread catcher is of greater length than the lower leg, and that the rocking movement of the thread catcher for seizing the threads to be cut is moved by its drive arrangement in a manner that the point of the upper leg first moves between the looper thread outlet opening of the bobbin housing and the retaining finger above the surface of the looper thread outlet opening and upon seizing the looper thread below the surface of the bobbin housing surface.
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45.发明授权Pulsating current control system for series motors and the like using a controlled rectifier 失效使用控制的整流器对系列电机和类似的电流控制系统进行调节
公开(公告)号：US3619752A
公开(公告)日：1971-11-09
申请号：US3619752D
申请日：1969-01-24
Applicant: PFAFF AG G M
Inventor： BATEIKA GEDIMINAS
CPC classification number: H02P7/293 , Y10S388/919
Abstract: In a series-wound motor speed control system comprising a solid state controlled rectifier connected in series with the motor and a source of pulsating rectified current, the rectifier is controlled by a synchronized unijunction transistor triggering pulse former including an RC timing network. The time position of the triggering pulses is subject to a threefold control, namely, a manual control, by varying the resistance of the network, to adjust the motor speed, a first automatic control in dependence upon variations of the motor load, and a second automatic control depending upon supply voltage variations, to maintain the adjusted motor speed constant independently of said variations.
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Patent Agency Ranking46.发明授权
公开(公告)号：US3598071A
公开(公告)日：1971-08-10
申请号：US3598071D
申请日：1970-03-11
Applicant: PFAFF AG G M
Inventor： LUCZAK LUCIAN , MEIER GUNTER
IPC: D05B69/22
CPC classification number: D05B69/22
Abstract: Arrangement for stopping the needle bar in a predetermined position on sewing machines with electrical motor drive means, where upon turning off the machine in a random position of the needle bar with a hand lever by way of a transfer lever of limited range of movement and a switch lever, a disconnecting element connected therewith is swung into the path of rotation of a retarding member that rotates with the arm shaft and a switch in the motor circuit are actuated so that by way of the switch 62 which is secured thereto the switch lever 60 rests in a force transmitting manner against the transfer lever 55 and the retarding member 11, 14 has an annular abutment surface 15, 16 that is interrupted by a disconnecting groove 69 for the disconnecting element 68.
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公开(公告)号：US3545393A
公开(公告)日：1970-12-08
申请号：US3545393D
申请日：1968-12-17
Applicant: PFAFF AG G M
Inventor： MEIER GUNTER
CPC classification number: D05B73/12
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公开(公告)号：US3543737A
公开(公告)日：1970-12-01
申请号：US3543737D
申请日：1967-09-20
Applicant: PFAFF AG G M
Inventor： MASCHMANN HANS
CPC classification number: D05B39/00 , D05D2203/00
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公开(公告)号：US3323631A
公开(公告)日：1967-06-06
申请号：US56461566
申请日：1966-07-12
Applicant: PFAFF AG G M
Inventor： ULRICH OBERRECHT
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公开(公告)号：US3307510A
公开(公告)日：1967-03-07
申请号：US38949764
申请日：1964-08-13
Applicant: PFAFF AG G M
Inventor： KRISTEN HEDEGAARD , ALBERT MAIER , HEINZ VOGEL
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