Patent ID: 7874613
Filing Date: 2011-01-25
Classification: A47D

Abstract:
1. A collapsible and foldable chair-stabilizing system preventing the overturning of a chair when adjacent to a flat surface, the chair-stabilizing system comprising: a chair-engaging portion, said chair-engaging portion having a front section and a rear section, said chair-engaging portion adapted to detachably attach to the chair; a flat surface-engaging portion, said flat surface-engaging portion coupled to said front section of said chair-engaging portion, said flat surface-engaging portion adapted to engage an underside of the flat surface when said chair-engaging portion is engaging the chair and said chair-engaging portion is tilted rearwardly; said rear section including a rearward extension adapted to engage a rear portion of the chair; said front section including an upward extension adapted to engage a seat of the chair such that the chair is trapped between said rearward extension and said upward extension, said chair-engaging portion generally constrained to move with the chair; said rearward extension passing under the seat of the chair to trap the seat between said upward extension and said rearward extension; an upward engagement plate extending upwardly from a distal end of said rearward extension, said upward engagement plate adapted to engage a rear side of the seat of the chair; a first pad coupled to said upward engagement plate and adapted to engage the rear side of the seat of the chair, said first pad providing a compressible and generally non-scratching surface; said upward extension passing in front of a front portion of the chair to trap the seat between said rearward extension and said upward extension; a rearward engagement plate extending rearwardly from a distal end of said upward extension, said rearward engagement plate adapted to engage a top side of the seat of the chair; a second pad coupled to said rearward engagement plate and adapted to engage the top side of the seat of the chair, said second pad providing a compressible and generally non-scratching surface; a central articulating section having first and second sleeves, said first sleeve hingedly coupled to said second sleeve; said rearward extension telescopically engaging said first sleeve to provide an adjustable displacement for said rearward extension; said upward extension telescopically engaging said second sleeve to provide an adjustable displacement for said upward extension; said rearward and upward extensions being adjustably extendable with respect to said central articulating section; a first stop coupled to said second sleeve and hingedly coupled to said first sleeve, said first stop permitting said first and second sleeves to fold parallel to one another and to unfold perpendicular to one another; said first and second sleeves unlockably locking said rearward and upward extensions in place, respectively; said first and second sleeves unlockably locking with respect to one another in said parallel and perpendicular positions; said locking of said first and second sleeves with respect to said rearward and upward extensions and with respect to each other is achieved by means selected from the group consisting of: biased spring pins retractably extending through holes, removable fasteners of all sorts including bolts, screws, pins, detents, dowels, pegs, and posts, and combinations thereof; a forward extension coupled to and generally linearly aligned with said rearward extension; said flat surface-engaging portion having a lower articulating section telescopically and slidably coupled to said front section of said chair-engaging portion and having an upper flat surface-engaging extension slidably coupled to said lower articulating section; said lower articulating section having third and fourth sleeves, said third sleeve hingedly coupled to said fourth sleeve; said front section of said chair-engaging portion telescopically engaging said third sleeve to provide detachable attachment between said third sleeve and said front section; said rear extension telescopically engaging said front section and said third sleeve to provide adjustable displacement for said rearward extension; said upper flat surface-engaging extension telescopically engaging said fourth sleeve to provide an adjustable displacement for said upper flat surface-engaging extension such that said upper flat surface-engaging extension is adjustably extendable with respect to said lower articulating section; a second stop coupled to said fourth sleeve and hingedly coupled to said third sleeve, said second stop permitting said third and fourth sleeves to fold parallel to one another and to unfold perpendicular to one another; said third sleeve unlockably locking said front section and said rear extension in place; said fourth sleeve unlockably locking said upper flat surface-engaging extension in place, respectively; said third and fourth sleeves unlockably locking with respect to one another in said parallel and perpendicular positions; said locking of said third and fourth sleeves with respect to said front section and said upper flat surface-engaging extension, respectively, and with respect to each other is achieved by means selected from the group consisting of: biased spring pins retractably extending through holes, removable fasteners of all sorts including bolts, screws, pins, detents, dowels, pegs, and posts, and combinations thereof; said third sleeve telescopically engaging said forward extension of said front section of said chair-engaging portion and said rearward extension of said rear section of said chair-engaging section, said third sleeve telescopically receiving said forward extension that, in turn, telescopically receives said rearward extension; said upper flat-surface-engaging extension further having a flat surface-engagement plate extending outwardly from a distal end of said upper flat surface-engaging extension, said flat surface-engagement plate adapted to engage an underside of the generally flat surface; a third pad coupled to said flat surface-engagement plate and adapted to engage the underside of the generally flat surface, said third pad providing a compressible and generally non-scratching surface; said rearward extension, said upward extension and said upper flat surface-engaging extensions all adapted to telescopically slide into said first, second, and fourth sleeves, respectively, to minimize displacements of said extensions; and said first, second, and fourth sleeves pivotably collapsing to align said first, second, and fourth sleeves with said third sleeve and said forward extension to minimize deployment of the chair-stabilizing system; whereby the chair engaged by said chair-engaging portion cannot topple over rearwardly when the chair-stabilizing system is deployed as rearward rotation of said chair-engaging portion is prevented by contact of said flat surface-engaging portion with an underside of the flat surface, said chair-engaging portion preventing rotation of the chair, the chair remaining able to slide and move with respect to the flat surface as it is not attached to the flat surface.