Form structure

Claim 2

Flexible board structure for use as a component in a form for poured concrete and the like, comprising: a pair of longitudinally extending and transversely spaced sidewalls disposed in parallel relation; a pair of longitudinally extending vertically spaced edge walls disposed in parallel relation and integrally connected with said sidewalls and defining therewith a generally hollow interior extending substantially from end-to-end thereof; a plurality of transversely disposed longitudinally extending webs vertically spaced and each integrally connected with said sidewalls, said webs including a pair thereof disposed in relatively close proximity to define therebetween a nailing space of predetermined location extending longitudinally along said board structure from end-to-end thereof; and locator means disposed along each of said sidewalls in general alignment with said Nailing space to facilitate identification and location thereof and including a depression in the associated sidewall; said board structure being symmetrical both about generally vertical and generally transverse center planes therethrough to enable the same to be inverted top-to-bottom and reversed end-toend, and also being long relative to the transverse width and height thereof and flexible along its length to enable the same to describe curvatures that may be encountered in ordinary use thereof.

Claim 3

The structure of claim 1 and further comprising connector structure for releasably interconnecting successive board structures in end-to-end relation; said connector structure comprising an elongated unitary tubular sleeve member substantially hollow from end-to-end thereof and having adjacent each end portion a socket adapted to receive therein an end portion of an aforesaid board structure; gripper means operative adjacent each end portion of said sleeve to releasably grip an end portion of such board structure when located within the associated socket; and stop means projecting into said sleeve intermediate said sockets for engagement with the ends of board structures inserted thereinto to limit the extent to which any board structure can be inserted; said sockets being substantially closed components into which end portions of board structures are slidably insertable; said connector structure being generally rectangular in cross section and having front and rear walls and top and bottom walls, said rear wall having inwardly displaced sections spaced from the ends thereof and substantially paralleling said front wall to engage such inserted board over a large area and define the aforesaid gripper means, the releasable grip provided thereby being a frictional engagement with an end portion of a board structure along each sidewall thereof and enforced thereon by said inwardly displaced sections of said rear wall; the end portions of said connector structure being relatively large to define mouths facilitating insertion of an end portion of such board structure thereinto.