Abstract: A mechanism for an extension leaf of an extension table. The mechanism comprises a frame defining a first formation configured for engagement by an end of a first axle of the extension leaf and second formation configured for engagement by an end of a second axle of the extension leaf. The first formation mounts the end of the first axle for rotation about a first axis that is parallel to a hinge axis of the extension leaf, and constrains the first axle against translation in a plane perpendicular to the first axis. In the illustrated embodiment, the first formation is simply an aperture in the frame. The second formation defines an elongate path along the frame, supports the end of the second axle for rotation about a second axis, and guides the second axle along the elongate path from end to end during reconfiguration of the extension leaf between its extended configuration and its collapsed configuration as shown.