Fully collapsible portable chair
OwnerCary Berman, Steven Kissinventors
Life of this patent
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Abstract
A collapsible folding lawn chair is provided. Employing a chair of the folding frame and "sling seat" variety, a second level of compactness is achieved by addition of flexible locking hinges intermediate certain straight members of the frame. The chair remains a readily assembled single unit yet collapses to an easily transported and stored size. Additional features such as fully reclinability can be readily provided with minimal increase in the storage size of the chair.
Claims10
In a collapsible chair having a frame of joined vertical and horizontal members defining a seat, a back, and a plurality of ground supports, said frame capable of being compacted by folding the seat, back, and ground supports together into a flattened unit, containing an improvement comprising
- providing a set of first vertical members and a set of second vertical members, the vertical members of each set positioned parallel to and in a plane with each other;
- said set of first vertical members being hingedly connected by at least one horizontal member, said horizontal member being provided with a hinged joint intermediate its ends permitting said horizontal member to be folded into two sections assuming a position approaching substantially parallel to, and within the plane of, said first vertical members;
- said set of second vertical members being hingedly connected by at least one horizontal member, said horizontal member being provided with a hinged joint intermediate its ends permitting said horizontal member to be folded into two sections assuming a position approaching substantially parallel to, and within the plane of, said second vertical members;
- wherein the planes of said set of first vertical members and said set of second vertical members approach a position of parallel to each other when said chair is folded into a flattened unit;
- said hinged joint comprising a flexible ligament affixed to two end plugs, and a sleeve;
- said ligament being of sufficient width and being affixed to said end plugs off center so to create a directional bias, allowing said hinged joint to fold fully in only one direction;
- said end plugs being adapted to join to and connect the sections of said horizontal members and maintain said members a fixed linear distance apart when said members are coaxially aligned;
- and
- said sleeve being positioned around said horizontal member and adapted to slide to surround and to traverse said ligament and hold said sections of the horizontal member in linear relationship to each other.
Dependencies are inferred from the claim text.