Intermodulation-resistant flexible shaft having electrically insulating coated wires

摘要

A flexible shaft for torque transfer has a plurality of metal wires that are helically wound in a plurality of layers with an opposite winding direction that alternates from layer to layer. Each of the metal wires is surrounded by an electrically insulating insulation layer. The insulating layer prevents a metal-on-metal contact between adjacent metal wires and thereby prevents unwanted intermodulation products.

主权项

1. Flexible shaft for transmitting torques, comprising:
a plurality of wires which lie closely against one another and are wound in a helical pattern, which wires are wound in a plurality of layers which are arranged one above the other and in a winding direction that alternates from layer to layer, and each wound layer consists of a metal wire and an electrically insulating insulation layer, which encloses the metal wire over the entire extent thereof and prevents metal-to-metal contact between adjacent metal wires including between adjacent windings of each metal wire.