Patent ID: 6410895
Filing Date: 2002-06-25
Classification: B29C

Abstract:
An induction heating coil unit for a manifold in a hot runner mold including a fixed mold and a movable mold, said manifold having a runner with side surfaces where no clamping force is applied by the fixed and movable molds, said coil unit comprising:a coil holding body having means to be attachable to and detachable from the runner of the manifold and to be disposed along the side surfaces of the manifold, and a wound coil held by the coil holding body and having four coil sections extending continuously as one unit, at least two of the four coil sections facing each other and rest of the coil sections being disposed between the two coil sections facing each other to allow the four coil sections to be disposed along the side surfaces of the runner of the manifold to heat the manifold from the side surfaces.