Patent ID: 8403723
Filing Date: 2013-03-26
Classification: A63B,A63H

Abstract:
1. A rigid bar, said rigid bar being a modular component in a construction kit, said rigid bar comprising: a beam of a closed-cell foam material having a generally square-shaped uniform cross-section and axially elongated along a length of said beam, wherein said beam comprises two opposing ends, and wherein said beam has a hollow circular channel positioned centrally along the length of the beam; a rigid spine, wherein said rigid spine is hollow, and wherein said rigid spine is accommodated in and fixedly bonded to the hollow circular channel of the beam, wherein said rigid spine extends axially along the length of the beam; a pair of endcaps permanently attached to said opposing ends of the beam, wherein each of the pair of endcaps comprises: a connector disposed between the rigid spine and each of the pair of endcaps for fixedly attaching the pair of end caps to said rigid spine, wherein said rigid spine is closed at each end by the connector.