Composite body consisting of at least two component parts such as profiles

Claim 1

A frame body construction comprising at least two shaped elongated members, each member being opposite parts of the frame body and having a profile with opposite portions spaced apart but generally defining an elongated cavity between such opposite parts, each body part having means forming a channel lengthwise of the body part including a profile wall, a first flange extending generally parallel to and spaced from the profile wall and a second flange extending from the profile wall in spaced relation to the first flange, said wall and flanges together defining said channel open toward the opposite frame body member, said frame body parts having said first flanges opposite each other; elongated connecting rails generally closing the space between and having flanges loosely engaging the opposite portions of each member behind said frame body flanges in said frame body channels; said respective opposite flanges of said body parts and rails having loose fitting interengagement of said rail flanges in said body part channels permitting easy assembly of body parts and rails without interference while retaining said body parts and rails in loose assembled relation against separation; and said loose fit providing gaps and clearances between the shaped members and rails exposed to said cavity past said second flanges; and a filler compound filling said elongated cavity, said compound being expanded in the cavity to push the members apart so that the first flanges engage against the connecting rail flanges tensioning the rails and entering about the interior portion of said rail flanges to press the rail and body part first flanges together face to face tightening the engagement between the connection means and shaped members, said expanded compound and connecting rails holding the members against relative movement forming a unitary rigid frame body.