Abstract: A lock system for releasably locking a first component, pivotally coupled along a pivot axis to a second component, in a plurality of positions fixed relative to the second component. The system includes a first engaging mechanism fixed to the first component and aligned with the pivot axis such that it rotates in a rotation plane substantially perpendicular to the pivot axis when the first component is pivoted relative to the second component. The system also includes a second engaging mechanism pivotally mounted to the second component and movable between a first engaged position in which the second engaging mechanism fixedly engages with the first engaging mechanism, preventing the first component from pivoting relative to the second component, and a second disengaged position removed from the first engaging mechanism wherein the first component is free to pivot relative to the second component.

Abstract: A folding table leg mechanism for mounting to a tabletop, having a leg support with an extension portion and a base portion fixedly mounted to the extension portion, and a mounting mechanism for pivotally connecting the leg support to the tabletop. The mounting mechanism has a hinge joint for pivoting the leg support in a pivot plane substantially perpendicular to the tabletop plane from a collapsed position in which the leg support is substantially parallel to the tabletop to an erect position in which the leg support is substantially perpendicular to the tabletop, and also has a rotation joint for rotating the leg support about a rotation axis substantially perpendicular to the tabletop when the leg support is in the erect position, from a first rotational position to a second rotational position. The leg support may be locked in place when it is in the second rotational position.