Patent ID: 7086124

Claim:
A system for attaching an accessory to a sheet, wherein the sheet has an attachment opening with a perimeter defining the opening, the system comprising: a clip comprising: a base for being passed through the opening and for being disposed above one side of the sheet, the base having a perimeter; first and second elastically deformable arms, said arms attached to the base and extending back from the base toward the sheet and the opening, the first and second arms alternating in location around the base, and each arm extending radially from the perimeter of the base and being bent from the base back toward the surface and the opening there through, wherein the first and second arms are each arrayed in symmetrical positions around the base; a connector between an accessory to be attached to the sheet and the base, for attaching the accessory to the base; the first arms having first end formations which lean against a first surface of the sheet that is toward the base of the clip; the first end formations comprising a plurality of transverse folds across the respective first arm and shaped to define an outer transverse channel shaped for gripping the perimeter of the opening in the sheet, the first formation being shaped to include an upper side which leans against the first surface of the sheet, a base of the channel which leans against the perimeter of the opening in the sheet and a lower side of the channel to pass the opposite second side of the sheet and which is inclined downwardly; wherein the first arms have a narrowed region adjacent the end formation thereof, said narrowed region produced due to the arms having side edges with opposing incuts defined therein, said first arms also including longitudinal end strips on the side edge of the arms and curved inwardly of the clip toward an axis thereof, located between the incuts of the first arms and the incuts at the base, and further comprising a respective incut in the perimeter of the base between neighbouring arms; and the second arms having second end formations which lean against an opposite second surface of the sheet away from the base, the second end formations having an outer segment, the second arms so shaped and the accessory attached to the clip having a surface disposed for being engaged by the outer segment of the end formation of the second arm.