Method and tool for manufacturing antenna unit, especially antenna unit for mobile phones and similar with metallic core tubular in form of wire and jacket composed on injectable insulating material

摘要

The antenna unit has an insulating jacket that is injection molded in 2 steps, with a metallic core (10) with a jacket part (15) shaped as half a tube cylinder while the remaining parts are supported inside a mold cavity adapted to the core shape. The molding tool and the core are displaced with respect to each other so that the core with the jacket is supported inside a second mold cavity. The still bare part of the core is provided with a second jacket supplementary to the first and shaped as half a tubular cylinder.