Mould for a sleeve of a wiring harness

A method of applying a sleeve of protective material onto a wiring harness, the method comprising the steps of:

• locating a wiring harness into a helical channel in a mold body;
• holding the wiring harness centrally within the helical channel as the wiring harness extends along the channel;
• injecting a fluid sleeve material into the channel such that the fluid sleeve material surrounds the wiring harness;
• and
• solidifying the fluid sleeve material.

A multi-piece mold for molding a sleeve of protective material onto a wiring harness, the mold comprising:

• a mold body;
• an inlet;
• an outlet;
• a generally circular-cylindrical channel, following a path along a helical curve, the circular-cylindrical channel extending through the mold body and connecting the inlet to the outlet;
• a first plurality of spacers located around an inner perimeter of the inlet and configured to hold the wiring harness centrally within the circular-cylindrical channel at the inlet;
• a second plurality of spacers located around an inner perimeter of the outlet and configured to hold the wiring harness centrally within the circular-cylindrical channel at the outlet;
• and,
• a plurality of injection ports arranged to convey a flowable sleeve material into the channel such that the flowable sleeve material surrounds the wiring harness,
• wherein the mold body comprises separable sub-sections, each separable sub-section defining a part of the channel such that when the separable sub-sections are assembled the separable sub-sections collectively define the channel, and
• wherein the separable sub-sections are configured to separate to allow a helically shaped sleeve to be removed from the mold once the flowable sleeve material has solidified.