ROTATABLE CONNECTOR DEVICE

摘要

In a rotatable connector device, a plurality of first rotatable rollers are provided on a top surface of the retainer, the plurality of first rotatable rollers being located at a prescribed pitch in a circumferential direction of a phantom circle concentric with the retainer and being axially supported by the retainer so as to be rotatable; and a second rotatable roller is provided to face a part, of one of the plurality of first rotatable rollers, along which the reversed part is wound, the second rotatable roller being located away from the one first rotatable roller by a distance which allows the reversed part to be pressed to, and to be separated from, the one first rotatable roller and being axially supported by the retainer so as to be rotatable.

主权项

1. A rotatable connector device, comprising:
a rotator including an annular rotatable-side ring plate and an inner cylindrical section having a cylindrical shape and formed along an inner circumferential edge of the rotatable-side ring plate; and a stator including an annular fixed-side ring plate and an outer cylindrical section having a cylindrical shape and formed along an outer circumferential edge of the fixed-side ring plate; wherein the stator and the rotator are in engagement with each other so as to be rotatable with respect to each other in a clockwise direction and a counterclockwise direction; and the rotatable-side ring plate and the inner cylindrical section of the rotator and the fixed-side ring plate and the outer cylindrical section of the stator form an accommodation space; the rotatable connector device further comprising: an annular retainer for supporting a plurality of rotatable rollers; a flat cable for electrically connecting the side of the rotator and the side of the stator to each other and including a reversed part, formed in a middle part in a length direction thereof, at which a winding direction of the flat cable is reversed, the flat cable being accommodated in the accommodation space such that the flat cable can be wound and rewound; a plurality of first rotatable rollers provided on a top surface of the retainer, the plurality of first rotatable rollers being located at a prescribed pitch in a circumferential direction of a phantom circle concentric with the retainer and being axially supported by the retainer so as to be rotatable; and a second rotatable roller provided to face a part, of one of the plurality of first rotatable rollers, along which the reversed part is wound, the second rotatable roller being located away from the one first rotatable roller by a distance which allows the reversed part to be pressed to, and to be separated from, the one first rotatable roller and being axially supported by the retainer so as to be rotatable.