Patent ID: 6974273

Claim:
A ring binder, particularly for use in a loose-leaf binder, comprising an elongate base having opposite sides and ends, rings spaced longitudinally of the base, each ring comprising a pair of ring segments, one segment of each pair being mounted on the base for swinging movement about an axis extending lengthwise of the base between a ring-closing position and a ring-opening position, a shaft mounted on the base for rotation on an axis extending lengthwise of the base, said shaft having at least one offset, said ring binder having at least one link extending from the offset to the swinging ring segments, whereby on rotation of the shaft and offset in one direction the swinging ring segments swing from their ring-closing position to their ring-opening position and on rotation of the shaft and offset in the opposite direction the swinging ring segments swing from their ring-opening position to their ring-closing position.