Patent ID: 9144300
Filing Date: 2015-09-29
Classification: A47B

Abstract:
1. An apparatus comprising: an article of furniture, comprising: a main body; a floor-engagement frame having a central portion attached to the main body; a plurality of non-rolling floor-engagement members connected to a floor-side surface of the floor-engagement frame and configured to engage a floor when the article of furniture rests upon the floor in an ordinary state of usage wherein each of the non-rolling floor-engagement members is radially outward of the central portion; a plurality of rollers connected to the floor-side surface of the floor-engagement frame radially outwardly of the plurality of non-rolling floor-engagement members and configured to not engage the floor when the article of furniture rests upon the floor in the ordinary state of usage, wherein the plurality of rollers are spatially discrete with respect to the plurality of non-rolling floor-engagement members and hence not spatially intermingled with any of the non-rolling floor-engagement members; and wherein each of the non-rolling floor engagement members is spaced radially inwardly from an innermost portion of one of the rollers; such that when the floor-engagement frame tilts by at least fifteen degrees towards a moving state of usage, the plurality of rollers engage the floor and the non-rolling floor-engagement members disengage from the floor to permit rolling movement of the article of furniture.