ROTARY CONNECTOR

摘要

When a movable reel is rotated, a rotating ring is rotated following the rotation of the movable reel. An annular elastic member is fitted to a support on the rotating ring. In a laying-out space, a cable is pressed by a first elastic belt portion and a second elastic belt portion of the annular elastic member. As a result, a reversing portion of the cable can keep its shape constant. Since the annular elastic member is able to circle around the support following the movement of the rotating ring, damage of the cable can be reduced.

主权项

1. A rotary connector comprising:
a stationary case; a movable reel rotatably supported to the stationary case; a laying-out space defined between an inner peripheral surface of the stationary case and an outer peripheral surface of the movable reel; and a cable stored in the laying-out space and having opposite ends fixed to the stationary case and the movable reel, and wherein: a rotating ring arranged between the stationary case and the movable reel, and a power transmission mechanism that rotates the rotating ring by a rotating force of the movable reel, and wherein: the rotating ring includes a first support surface and a second support surface located within the laying-out space and positioned in spaced relation from each other in a rotating direction of the rotating ring, and a first elastic belt portion and a second elastic belt portion between the first support surface and the second support surface, the first elastic belt portion being positioned opposite to the inner peripheral surface of the stationary case and the second elastic belt portion being positioned opposite to the outer peripheral surface of the movable reel, and the cable extending along the inner peripheral surface of the stationary case is reversed in a reversing-cable passage region adjacent to the first support surface and is wound over the outer peripheral surface of the movable reel.