Patent ID: 7950338
Filing Date: 2011-05-31
Classification: A47B

Abstract:
1. A keyboard support comprising: a bottom horizontal support plate having front, rear and side edges defining a quadrilateral shape, an upper horizontal keyboard support plate having front, rear and side edges defining a quadrilateral shape, a first pair of parallel legs having first corresponding ends secured on a first horizontal axis to the underside of said upper support plate near its rear edge and second corresponding ends adapted to rest on the top of said bottom plate wherein said first corresponding ends of said first parallel legs are rigidly interconnected by a transverse member pivotally connected to the underside of said upper support plate, a releasable retention structure positioned on the underside near said front edge of said upper support plate and formed from a mat with horizontally spaced parallel rows of downwardly open notches, and a U shaped leg structure including a second pair of parallel legs having first corresponding ends pivotally connected to the upper side of said bottom support plate near its rear edge on a second horizontal axis and second corresponding ends rigidly interconnected by a horizontal connector adapted to releasably fit in a selected one of said plurality rows of notches, said first and second pairs of legs being pivotally interconnected intermediate their ends on a third horizontal axis, said horizontal axes being parallel to one another.