JPS63177481U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of a sewing machine equipped with an empty ring sewing device according to an embodiment of the present invention, FIG. 2 is a rear view showing the main parts of the same embodiment, and FIG. 3 is an empty ring transfer means and its FIG. 4 is a front view of the empty ring holding means of the sewing machine, FIGS. 5 and 6 are schematic side views showing the operation of the device in FIG. 1, and FIG. 7 is a diagram showing the area around the presser foot. FIG. 8 is an enlarged perspective view showing the empty ring holding mechanism, and FIG. 8 is an enlarged perspective view illustrating the operation of FIG. 7. 5... Throat plate, 7... Cloth presser, 9... Needle, 13... Empty ring catcher, 15... Empty ring transfer means, 17... Empty ring holding means, 57... Suction tube, 57a... Suction port, 71... Presser part, 75...Spring, 79...Guide groove, C...Empty ring.

Claims (1)

[Scope of Claim for Utility Model Registration] An empty ring catcher having a cutting knife that sucks the empty ring continuously formed from the edge of the cloth from the suction port and cuts the empty ring sucked into the suction port; A presser foot with a guide groove formed on the upper surface to be fitted into it, and an empty ring held in the suction port of the empty ring catcher,
an empty ring transfer means that suctions and captures the empty ring at the suction port of the suction tube and transfers it to the vicinity of the guide groove; and an empty ring of the suction port transferred by the empty ring transfer means, which is separated from the suction port and transferred to the guide groove. an empty ring holding means for holding the empty ring within the presser foot; the empty ring holding means is movably supported on the upper surface of the presser foot and presses the empty ring in the guide groove; and the presser foot and a spring that always biases the presser in the direction of pressing the empty ring against the guide groove or in the opposite direction to the direction, and an actuating member that presses or releases the presser against the spring force. An empty ring sewing device for an overlock sewing machine, comprising: a movable mechanism that holds or releases the empty ring in the guide groove by moving the operating member;