Document Type and Number:
Japanese Patent JPS6226071
Kind Code:
Y2
Abstract:
An automatic notching device in a sewing machine comprises a worm engaged with a worm gear fixed to a driving shaft of the sewing machine, a driving cam having a cam portion formed with a plurality of protrusions and a cylindrical boss portion, and an actuating link pivotally moved dependant on the movement of said cam. A cutter-holding member is provided to move upwardly and downwardly by the movement of actuating link transmitted via a linkage member and a swing arm. During the movement of the cutter-holding member, the cutter cooperates with a cutter-guiding member disposed adjacent to a side of needle-guiding member, in order to effect a simultaneous notching operation in sewing a curved portion of garment. The notching device further comprises a push rod having at one end a lever and at the other end a yoke. An actuating shaft is connected at one end to said yoke and has a roller at its other end. Depending upon the position of the lever the roller is moved upwardly or downwardly. When the roller engages said cam portion it is in a notching position, whereas when it engages said boss portion it is in a non-notching position.
Application Number:
JP11017984U
Publication Date:
July 03, 1987
Filing Date:
July 20, 1984
Export Citation:
International Classes:
D05B37/02; D05B37/06; (IPC1-7): D05B37/06
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