Clasp

For use to support the marginal edge of pliable sheets, a one-piece normally open clip of bendable plastic material comprising,

• a first and second hingedly connected leaf, a hinge zone, each leaf having a zone adjacent said hinged connection and a first hole outboard of said hinged connection, each said first hole being at a common distance and relative location to register with one another when the inside surfaces are in confronting relation;
• each said leaf having an edge bounding an inside surface to confront one another and an outside surface, and each leaf defining a substantial area to overlay a portion of opposite marginal surfaces of a shade sheet and said edges presenting a smooth surface free and clear of pointed corners as the leaves are viewed in plan, the edge of each leaf having a length parallel to the axis of the hinge zone greater than the length of the edges perpendicular to the hinge zone,
• said hinged connection comprising a generally circular zone including reinforcing ribs and defining an axial through passageway,
• a plurality of locating pins on said first leaf extending generally perpendicularly of the inside surface and arranged in spaced relation about said hole,
• a plurality of recesses in the inside surface of the second leaf for companionate interengagement in registry with the pins for orienting the leaves when in overlaying relation of the margin of a sheet and transmitting forces to the leaves, and
• lock means comprising a pair of male member each extending from the second leaf towards said first leaf and being located adjacent the outboard edge of the second leaf and one of the edges perpendicular to the axis of the hinge zone and including a barbed outer end for hooked-up engagement in a throughhole provided in the first leaf to hold the pins in their respective recesses and to clamp the clip to the margin of a sheet.