Structural tubing members with flared out end segments for conjoining

A rigid tubular member of a variable length formed from extrudable aluminum stock, in which the member sidewalls are generally planar throughout their length and adapted to be custom-fitted and conjoined with at least one planar surface of another member, the tubular member being provided with linear groovings along at least one planar surface to permit controlled separation of at least one sidewall thereof along the groovings, such tubular member comprising:

• (a) a transverse configuration which is rectangular in cross-section and has open longitudinal ends;
• and
• (b) a first pair of externally-placed linear groovings, arrayed in parallel, with each such grooving located coincident with the two external linear seams of the tubing located on the elongate edges of one planar surface thereof, and with each of such groovings being of a depth sufficient to facilitate separation under force of at least an initial first finger from a first end wall segment from the adjacent end wall segments.

A rigid tubular member of a variable length formed from extrudable aluminum stock in which the member sidewalls are generally planar throughout their length adapted to be custom-fitted and conjoined with at least one rigid surface of another rigid member, the tubular member being provided with linear groovings along at least one planar surface to permit controlled separation of at least one sidewall thereof along the groovings, such tubular member comprising:

• (a) a transverse configuration which is rectangular in cross-section and has open longitudinal ends;
• and
• (b) a first pair of internally-placed, linear groovings, arrayed in parallel, with each of the groovings being located coincident with the two internal linear seams of one planar surface of a tubing sidewall, thereof, with each of the groovings being of a depth sufficient to facilitate separation under force of at least an initial first finger from one end wall segment from the adjacent two end wall segments, while maintaining the structural integrity of the transverse dimension of the separated end wall at the points of separation.

A pair of conjoined tubular members of variable length and like rectangular cross-sections formed from extrudable aluminum stock, each having a narrower internal dimensional span and a comparatively wider external dimensional span wherein:

• (a) the internal span of one opposing pair of sidewalls of a first member which is left intact, while at least one of the complemental end sidewalls of a second member and as to the one end sidewall it includes a first pair of externally-placed, linear groovings arrayed in parallel with each of the groovings being located proximal to one of the elongate opposing seams in one planar surface of the member, and each of the groovings being of a depth sufficient to facilitate separation under force of at least an initial finger from one end wall segment from the adjacent two end wall segments, while maintaining the structural integrity of the transverse dimension of the separated end wall segment at the end point of separation which has been flared outwardly and fixedly and so that:
• (b) the internal dimensional span of the first pair of sidewalls of the second member snugly straddles the narrower external dimensional span of the other intact first member for purposes of member conjoining at a point along the longitudinal dimensions of the first tubular member.

A pair of conjoined tubular members of variable length and rectangular cross-section both formed from extrudable aluminum stock having a narrower external dimensional span and a comparatively wider internal dimensional span, wherein the external dimensional span of the opposing pair of sidewalls of the first member is left intact, while at least one of the end sidewalls of the second member includes:

• (a) a first pair of externally-placed, linear groovings arrayed in parallel with each of the groovings being located proximal to each of the two seams of a single member sidewall in one planar surface of the member, and each of the groovings being of a depth sufficient to facilitate separation under force of at least an initial finger from one end wall segment from the adjacent two end wall segments, while maintaining the structural integrity of the transverse dimension of the separated end wall segment at the end point of separation and which has been flared outwardly and fixedly, so that:
• (b) the internal dimensional span of the second member tightly straddles the unflared end sidewalls of the external narrower dimension of the first member at its one longitudinal end, providing at least three sidewall end segments of the second member contacting the first member.

A tubular member and a right angle member conjoined and each being of variable length and rectangular cross-section formed from extrudable aluminum stock, wherein at least one of the sidewall end segments of the angle member is flared angularly relative to one intact tubular member sidewall and seats upon the external planar surface of the intact tubular member sidewall, wherein as to the angle member a first pair of externally placed, linear groovings are located proximal to a single seam with each of the groovings being of a depth sufficient to facilitate separation under force of an initial finger from one of the end walls.