| 摘要 |
<p>This low friction rotatable electrical connector (26) is for use with coiled telephone cords to prevent the cord from becoming twisted and knotted-up. This connector is generally of insulating material formed by a hollow inner cylindrical member (34) telescoped within a hollow outer cylindrical member (36). A pair of ball bearing members (58, 60) support the outer member on the inner member for rotation about a central longitudinal axis. The inner member has a single longitudinal split (40) for receiving a plurality of continuous conductive rings (42), and flexible insulated conductors extend through this split for connection to these rings. A plurality of apertures are formed in the wall of the outer member in alignment with the conductive rings, and these apertures contain spring-biased balls (68, 70) in rolling contact with the rings. The exterior of the outer member supports a plurality of split conductive rings (64) that are in alignment with the continuous rings of the inner member as well as with certain of the spring-biased balls so as to maintain good electrical continuity between the continuous rings and the split rings. Flexible insulated conductors are joined to these split rings at one end and to a male electrical phone plug (56) at the outermost end of the outer member. An insulated sleeve (38) is fitted over the outer member, and it may include a hollow ball and socket joint (92) that supports the male phone plug when the connector is fixedly mounted to the telephone base or handset.</p> |
