Patent ID: 6959454

Claim:
A headgear having a brim structure with extensible/retractable panels to provide variable surface area, comprising: headgear to which the structure is attached to provide a brim with a variably adjustable length and width; the structure including a first panel, a second panel pivotally mounted to the first panel, a third panel pivotally mounted to the first panel, the second and third panels being movable between a first position in which superposition of the second panel and third panel with the first panel is minimized, and a second position in which superposition of the second panel and third panel with the first panel is maximized; and a mechanism including a guide on the first panel, elongated slots in each of the second and third panels, and a pin extending through the elongated slots and engaging the guide, whereby movement of the pin in one direction causes extension of both panels simultaneously and movement of the pin in a second opposite direction causes retraction of both panels simultaneously.