To obtain a needle for large embroidery machines includes a rod portion, a shaft portion and an end portion and having a constriction which forms a predetermined breaking point.
This needle, especially a needle for large embroidery machines, comprises a rod portion 1 and a shaft portion 2 sharpened at an end portion 3 and having a groove 3' and an eye 4, has a constriction 6 which forms a predetermined breaking point on the shaft portion 2 near the rod portion 1, is tapered to the end point at 0.5-2° conical angle and forms a conical shaft zone 7 occupying 10-50% length of the shaft portion 2 and a cylindrical shaft portion 8 adjacent thereto. The above constriction 6 has the same diameter bottom as the cylindrical shaft portion 8, a circular arc or V-shaped contour and a round converting portion to the rod portion 1 and/or the conical shaft zone 7.
Schmid, Thomas
Next Patent: METHOD AND APPARATUS FOR DRY-AND SHRINK-PROCESSING TEXTILE PRODUCT
