Process for manufacturing a housing for an electrical connecting device between two parts rotating relatively to each other

摘要

The method involves applying a sound insulating material (9) by spraying a plastics with a sound attenuating characteristic onto the internal axial boundary surfaces (8) of the housing parts (3,4) made by injection moulding. The housing consists of a fixed part (3) and a rotatably part (4), each having connector units (10) and including a coiled flexible electrical conductor (6).