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93 records (took 0.024 seconds)

    81.
    发明专利
    未知

    公开(公告)号：DE3346903A1

    公开(公告)日：1984-07-05

    申请号：DE3346903

    申请日：1983-12-21

    Applicant: MEFINA SA

    Inventor： BARUFFA OLINDO ,  JIMENEZ ANTONIO

    IPC: D05B55/14 ,  D05B3/02 ,  D05B55/16

    Abstract: A sewing machine includes a stud carried by a journal surrounding a tubular needle bar having a lateral opening. A link connected to the journal normally drives the needle bar when the stud is engaged within the needle bar opening. A disconnecting rod within the tubular needle bar is axially displaceable and includes a ramp engageable with a control member, also within the needle bar, to drive the stud from the needle bar opening and thereby disengage the journal from the needle bar.

    82.
    发明专利
    未知

    公开(公告)号：FR2538420A1

    公开(公告)日：1984-06-29

    申请号：FR8319990

    申请日：1983-12-14

    Applicant: MEFINA SA

    Inventor： BARUFFA OLINDO ,  JIMENEZ ANTONIO ,  PLOMB FRANCIS

    IPC: D05B3/02 ,  D05B55/14

    Abstract: The needle bar (1) engaged in a pivoting cradle (2) is integral with a journal (3) connected by a connecting member (8) to a link (4) driven from the drive shaft (12) of the machine. In order to permit the head (23) of a loop holding member (25), mounted in the pedestal of the sewing machine, to engage in a loop (29) of the needle thread (27) during the ascending course of the needle (22), whatever may be its decentration, the connecting member (8) is formed by a bent extension of the crank pin of the link (4) engaged in a bore (7) of the journal (3).

    84.
    发明专利
    未知

    公开(公告)号：IT8354069V0

    公开(公告)日：1983-12-22

    申请号：IT5406983

    申请日：1983-12-22

    Applicant: MEFINA SA

    Inventor： BARUFFA OLINDO ,  JIMENEZ ANTONIO

    IPC: D05B55/14 ,  D05B3/02 ,  D05B55/16

    Abstract: A sewing machine includes a stud carried by a journal surrounding a tubular needle bar having a lateral opening. A link connected to the journal normally drives the needle bar when the stud is engaged within the needle bar opening. A disconnecting rod within the tubular needle bar is axially displaceable and includes a ramp engageable with a control member, also within the needle bar, to drive the stud from the needle bar opening and thereby disengage the journal from the needle bar.

    87.
    发明专利
    未知

    公开(公告)号：IT8068097D0

    公开(公告)日：1980-07-10

    申请号：IT6809780

    申请日：1980-07-10

    Applicant: MEFINA SA

    Inventor： RABOUD NORBERT ,  BARUFFA OLINDO

    IPC: G01G23/37 ,  G01G3/14 ,  G01G23/00

    Abstract: In order to obtain, in an electronic balance, ranges which are in a predetermined ratio, for example 1:10, there is provided a measuring arm provided with strain gauges adapted to measure the deformation of this arm when it is subjected to a constraint or force. Between the arm and a knife-edge there is disposed a measuring annulus likewise provided with strain gauges adapted to measure the deformation of this annulus when it is subjected to a weighing force. The balance is operated in such a manner that the force or mass of the weight to be measured at the moment of weighing is exerted firstly on the arm via the annulus, until the arm contacts the abutment. This determines the small measuring scale. If the weight is higher than this value, the force is subsequently exerted solely on the annulus which presents a resistance in the region of 10 times greater and determines the second measuring scale.

    THREAD-TENSIONING DEVICE, PARTICULARLY FOR SEWING MACHINES
    88.
    发明专利
    THREAD-TENSIONING DEVICE, PARTICULARLY FOR SEWING MACHINES 未知

    公开(公告)号：CA1063438A

    公开(公告)日：1979-10-02

    申请号：CA267533

    申请日：1976-12-09

    Applicant: MEFINA SA

    Inventor： JIMENEZ ANTONIO ,  BARUFFA OLINDO

    IPC: D05B47/02 ,  D05B47/00

    Abstract: A thread-tensioning device of a sewing machine comprises thread-squeezing plates between which the thread passes. A shaft applying pressure to the plates is subjected to the action of a transmission lever which is acted upon by a spring-urged ball which is moved by a control button along an arcuate path from adjacent the pivoting axis of the lever to near an end of the lever. The angle of the lever can be set to enable progressive setting of the thread tension for a constant spring pressure, or with variation of the spring pressure.

    89.
    发明专利
    未知

    公开(公告)号：DE2855677A1

    公开(公告)日：1979-06-28

    申请号：DE2855677

    申请日：1978-12-21

    Applicant: MEFINA SA

    Inventor： BARUFFA OLINDO

    IPC: D05B3/02 ,  D05B19/00

    Abstract: A zig-zag stitch sewing machine having a laterally displaceable needle, the displacements of the needle being controlled by a cam arrangement through a linkage mechanism, the cam arrangement being actuated by one or more control members, the linkage arrangement including a pivotally mounted slider, the pivotal axis for the slider being provided on a pivotal lever so that the pivotal axis is displaceable, and a connecting rod which is pivotally connected to the mounting for the needle, the connecting rod being displaceable along the slider, means being provided for displacing the pivotal axis of the slider while its free end is immobilized in one of its terminal angular positions, whereby displacement of the end of the connecting rod along the slider causes a needle carrying bar to be displaced between two terminal decentered positions.

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