Abstract: The object of the invention is to provide a method and device with which it is possible, in a simple and rapid way, to form a buttonhole in a fabric which requires no further marking. The object of the invention is achieved by providing a method for producing a buttonhole in a fabric, in which an opening is formed in the fabric by means of an ultrasonic welding treatment, after which the edges of this opening are fused, to form the buttonhole.
Abstract: A pair of hole punching pliers, so-called stoma pliers, is arranged to punch a hole in a skin protection plate for a stoma bag. The hole punching remedies of the pliers consist of a hole socket (16) and a holding-up plate (18) for the same. During the punching, a plastic skin protection plate is located between the hole socket (16) and the opposing surface of the holding-up plate (18), as the free, outer cutting/punching edge (22) of the hole socket (16) after the completion of the punching abuts directly on said opposing holding-up plate surface.
Abstract: A thread-cutting mechanism for a sewing machine (2), especially an eyelet-buttonhole sewing machine with a moving blade (12 or 12") and a stationary blade (16). The moving blade travels back and forth in a groove (19) in a plate (1) with an aperture for the needle to pass through while it is producing a stitch. The needle-aperture plate comprises at least a top (11 or 11") and a bottom (10 or 10"). The moving blade is entirely accommodated between the top and the bottom of the plate. The stationary blade is part of the top.
October 12, 1995
Date of Patent:
July 15, 1997
Durkopp Adler AG
Eberhard Kastrup, Thomas Noltge, Giorgio Meacci
Abstract: A work sheet cutting apparatus for cutting a work sheet, including a cutting member for cutting the work sheet, a support member on which the work sheet is to be received when the cutting member is cutting through the work sheet, an actuating device for displacing the cutting member along a predetermined path between an operative position of the cutting member where the cutting member is received by the support member and a retracted position of the cutting member spaced away from the operative position, and a detecting device for continuously detecting the displacement of the cutting member within a predetermined range included in the predetermined path, and generating continuous signals representing that the cutting member is displacing within the predetermined range.