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    CONTROL PEDAL OF ELECTRIC MACHINE
    3.
    发明专利
    CONTROL PEDAL OF ELECTRIC MACHINE 失效

    公开(公告)号：JPH02182290A

    公开(公告)日：1990-07-16

    申请号：JP30343289

    申请日：1989-11-24

    Applicant: MEFINA SA

    Inventor： ANTONIO HIMENESU ,  MITSUSHIERU KONBUPIINU

    IPC: D05B69/18 ,  D05B69/30 ,  G05B24/00 ,  H01H21/26

    Abstract: PURPOSE: To provide a pedal for practical use by forming a movable member into handle occupying two positions, using one of two positions for feeding a pedal, and using the other position for controlling the speed of a machine. CONSTITUTION: The motive force of the electric machine is supplied by a plug 8 inserted to an electric wall socket, and a current is supplied to a control pedal 7 connected to the motor of a sewing machine by an electric cord 8. The pedal 7 has a movable member 9 to be operated by the foot of a user, whose heel is placed on a support plate 10, and this member 9 operates the sewing machine and controls the sewing speed. Besides, the pedal 7 respectively has a housing 11, portion 12 for forming a bobbin capable of winding the cord 8 having the plug 6 on respective two side surfaces of this housing 11, and cord 8. In the state of not using the pedal 7, the member 9 formed into handle is lowered on the plate 10 and the electric cord 8 is wound around the portion 12 forming the bobbin. Besides, two extreme positions of the member 9 at the using position of an imaginary line express a position 9a corresponding to the stop of the machine and a position 9b corresponding to the position of the maximum speed.

    SEWING MACHINE
    4.
    发明专利
    SEWING MACHINE 失效

    公开(公告)号：JPH02182289A

    公开(公告)日：1990-07-16

    申请号：JP30494489

    申请日：1989-11-27

    Applicant: MEFINA SA

    Inventor： ANTONIO HIMENESU

    IPC: D05B53/00 ,  D05B57/14 ,  D05B61/00 ,  D05B63/00

    Abstract: PURPOSE: To attain improvement in efficiency with a simple method by providing element to be operated by a feed mechanism for relaxing a thread from a shuttle for each cycle of the feed mechanism. CONSTITUTION: A feed dog 17 is provided with the element for relaxing the thread from the shuttle for each cycle of the feed mechanism, this element is composed of a U-shaped elastic steel wire 21, and the arm is bent at the rear end part thereof shown by 22 and housed in one part of the dog 17. Each arm of this U-shaped member passes through a hole in a supporting part 23, which can be slid at the vertical portion of the dog 17, and when moving the dog 17 upward for holding cloth to be sewn, each supporting part 23 deforms the steel wire 21 downward in contact with a needle plate 18 so that a tension can be exerted on a thread 8. When moving the dog 17 downward by the feed mechanism, the steel wire 21 is returned to the initial position and no tension is exerted on the lower thread 8 any more. Therefore, the thread 8 is relaxed and the pulling of a lower thread into an object to be sewn is promoted by a pulling effect exerted by an upper thread 14 regardless of a sewing speed. The length of the thread to b relaxed for each cycle is a function of horizontal distance, where the dog 17 crosses, while the steel wire 21 is operated upon the thread 8. Therefore, increased relaxing is realized as a function of length of the selected stitch.

    HANDLE FOR SEWING MACHINE
    5.
    发明专利
    HANDLE FOR SEWING MACHINE 失效

    公开(公告)号：JPH0257291A

    公开(公告)日：1990-02-27

    申请号：JP11487289

    申请日：1989-05-08

    Applicant: MEFINA SA

    Inventor： ANTONIO HIMENESU ,  INGEBORUGU BOO

    IPC: D05B43/00 ,  D05B53/00 ,  D05B73/00

    Abstract: PURPOSE: To axially feed out a thread by supporting a bobbin-carrying rod practically parallel to a handle with one arm while this arm is in extension position data and having a thread guide, which is practically disposed on the axial line of the bobbin-carrying rod while two arms are located at expansion positions thereof, with the other arm. CONSTITUTION: The handle has recesses 6 and 7 at both the terminals of an intermediate portion 4, and two arms 8 and 9 attached to the axial line parallel with the intermediate portion 4 so as to be freely turned can be housed in these recesses. These recesses 6 and 7 have guide grooves 10 and inside this groove, a tongue 11 fixed on a base 12 for supporting a bobbin-carrying rod 13 can be slid. The bobbin-carrying rod 13 forms an accessory to be used only when sewing with two threads is desired. When sewing with two threads is not desired, the base 12 and the rod 13 are removed from the recess 6 so that the recess 6 can receive the arm 8 when moving to a housing position. The arm 8 is provided with a bobbin-carrying rod 14 capable of positioning a thread bobbin 15. A thread 17 is passed through a thread guide 18 at one part of the arm 9.

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