Patent ID: 8128047

Claim:
An accessory clamp mechanism for releasably securing an accessory mount base to a mount rail having first and second clamp surfaces, comprising: a mount base member having a base clamp surface disposed for retaining engagement with the first clamp surface of said mount rail; a clamp support member being fixed to and projecting laterally from said mount base member and defining a retainer opening; a clamp member having a clamping portion disposed for clamping engagement with the second clamp surface of said mount rail and having a retainer portion disposed in alignment with said retainer opening of said clamp support member; and a clamp retainer member extending through the retainer opening and having adjusting engagement with said clamp member, said clamp retainer member having adjusting movement generating force transmitting relation with said clamp member and adjustably moving said clamping portion of said clamp member substantially linearly into clamping engagement with the second clamp surface of said mount rail.