Patent ID: 6625827
Filing Date: 2003-09-30
Classification: A47C

Abstract:
A support member adapted to join two parallel sides of a frame, said support member comprising a substantially straight member having ends adapted to be connected to said sides of said frame, said straight member having an upper surface for supporting a load and a lower surface, a force transmitting means positioned along said support member intermediate said ends and contacting said straight member, a tension bar having opposite ends and an intermediate portion between said opposite ends, said intermediate portion of said tension bar contacting said force transmitting means and having said opposite ends affixed to said straight member at or near the ends of said straight member, whereby said intermediate portion of said tension bar is displaced a finite distance away from said lower surface of said straight member, means to maintain said tension bar in tension to create and maintain a force exerted by said force transmitting means against said straight member to increase the rigidity of said straight member.