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US 6,305,750 B1Granted
Clamshell backrest components
AssigneeMeco Corporation
InventorsSteven A. Buono, Eric A. Ward
Life of this patent
Estimating the term…
Abstract
A backrest for a chair comprising two parts constructed and arranged to interlock around chair back supports. Each part is preferably molded, and has a rib structure which provides positioning means for assembly on the supports. A hook and hook receiver arrangement provide a locking means for firm attachment of the parts to the supports. Decorative cushions can be applied to the parts before or after locking them to the supports. The invention is not limited to folding chairs.
Claims27
A combination chair and backrest comprising:
- a chair having a back formed with an outer frame member and at least two inner frame members;
- and
- a backrest formed of two mating pieces,
- wherein each of said two mating pieces has a finished side and an inner side, and
- wherein each inner side includes:
- means for surface engagement with at least two of said at least two inner frame members to position each of said two mating pieces on opposite sides of said at least two inner frame members;
- and
- means for securing said two mating pieces to each other without tools.
5 more elements
A method for combining a chair and backrest comprising:
- providing a chair having a back formed with an outer frame member and at least two inner frame members;
- forming a backrest from two mating pieces;
- and
- attaching said two mating pieces to said chair without tools,
- wherein each of said two mating pieces has a finished side and an inner side, and
- wherein mating is provided by said inner sides, which each include:
- means for surface engagement with at least two of said at least two inner frame members to position each of said two mating pieces on opposite sides of said at least two inner frame members;
- and
- means for securing said two mating pieces to each other without tools.
6 more elements
A backrest formed of two mating pieces,
- wherein each of said two mating pieces has a finished side and an inner side, and
- wherein each inner side includes:
- means for surface engagement with at least two inner frame members of a chair back frame to position each of said two mating pieces on opposite sides of said at least two inner frame members;
- and
- means for securing said two mating pieces to each other without tools.
2 more elements
Dependencies are inferred from the claim text.