Patent ID: 8851414
Filing Date: 2014-10-07
Classification: B65H

Abstract:
1. A bobbin comprising: a cylindrical part around which a wire is wound; flanges provided at left and right sides of the cylindrical part, having diameters greater than a diameter of the cylindrical part, and having a plate shape; a through hole defined through a central portion of the cylindrical part and central portions of the left and right flanges; a handle part having a substantially “ an anti-rolling unit for the bobbin, wherein the anti-rolling unit includes a first anti-rolling unit having a plurality of first and second regions alternately formed on outer peripheral surfaces of the flanges having the plate shape, in which two adjacent first regions or two adjacent second regions make contact with a flat surface; and a second anti-rolling unit defined as the handle makes contact with the flat surface; an anti-rotation protrusion for the handle part protruding from an inner surface of the handle part; and a plurality of grooves provided on an outer surface of each flange to receive the anti-rotation protrusion of the handle part.