Patent attributes
An article of furniture comprises a horizontal planar member, and a support member for supporting the horizontal planar member. A connection system releasably secures the horizontal planar member to the support member. The connection system comprises a plurality of arcuate guide grooves on a bottom surface of the planar member and radially disposed about an axis of rotation, and a plurality of locking projections projecting from a top of the support member in positions corresponding to the plurality of guide grooves. The plurality of locking projections are configured to be received in the plurality of guide grooves and moved in the plurality of guide grooves between an insertion section of the groove and a locking section of the groove in response to relative rotation between the planar member and the support member about the axis of rotation.