METHOD OF MANUFACTURING CABLE GUIDANCE TUBE

摘要

A cable guidance device of extruded thermoplastic material has at least one cable guidance tube (1) and an apparatus for smoothing insertion or withdrawal of a cable. The apparatus consists of rotation-preventing sliding ribs (3), which are arranged in the inner wall of the tube (1) in the snake-like or wave-like manner, produced during the extrusion. Said sliding ribs (3) are manufactured by a rotating tool that is accommodated in a die, which rotating tool can be driven with alternating direction of rotation and with different rotational speeds.