Improvements in or relating to supports for electric heating elements and methods of manufacturing such supports.

摘要

A support for an electric heating element comprises a former of generally cylindrical shape, made of a heat resisting material and having a longitudinal core (1) from which extend spaced ribs (2) that support an outer wall (3). Portions of the outer wall (3) and of the ribs (2) are omitted along a helical path around the core to provide a mount for an electric heating element (13). A heating element assembly including the support and the heating element is mounted in a hot air gun.

The support is made in two stages, the first stage being an extrusion stage and the second stage involving the machining of a helical slot in the extruded component.