Rotary connector device

摘要

There is provided a rotary connector device in which a flat cable is wound and accommodated in an annular space between a rotating rotor and a fixed stator. The rotor is provided with a rotor main body made of a PBT resin, and a rotor cover portion made of a polyacetal resin and overlapping the rotor main body to ensure strength of the rotary connector device and reduce sliding noises between the flat cable and the rotor. The rotor cover portion is provided with an opening portion for pulling the flat cable in the annular space out of the rotor main body, and a concave portion is formed in a disc portion of the rotor cover portion for improving work efficiency at the time of assembling the rotor main body and the rotor cover portion.

主权项

1. A rotary connector device comprising:
a rotor; a stator forming an annular space with the rotor between the rotor and the stator; and a flat cable accommodated in the annular space, of which both sides are pulled out outside of the annular space via the rotor and the stator, wherein the rotor comprises: a rotor main body made of a resin with high strength; and a rotor cover portion made of a resin with high lubricating properties, wherein the rotor main body comprises: a rotor main body disc portion; and a rotor main body cylindrical portion axially extending from the center of the rotor main body disc portion, and the rotor cover portion comprises: a rotor cover disc portion overlapping the rotor main body disc portion of the rotor main body; and a rotor cover cylindrical portion overlapping the rotor main body cylindrical portion of the rotor main body, the rotor cover disc portion and the rotor cover cylindrical portion of the rotor cover portion are respectively facing the annular space; and a rotor attachment fitted in the rotor main body and supporting a lower part of the stator.