Field joint of longitudinal roof carrier to vehicle roof, removable fixed field joint of two parts, nut with spherical contact surface for the field joint and process for producing such nut

摘要

The invention is a mounting connection roof rails to the vehicle roof, wherein the basic element of the carrier is a tube (1) the side member which is provided with fastening means for the firm mounting connection to the roof (6) of the vehicle. Each fastening means comprises a carrier mounting body (2) of plastic or metal with a through hole (7) for inserting the coupling means (3), whose both ends are provided with a thread which passes through a hole in the bottom surface of the tube (1) side member and is screwed into the steel nuts (4) substantially parallelogram floor plan with lower spherical bearing surface. This matrix (4) is pushed into the interior of the tube (1) The spar and at its assembly and disassembly protection against slipping inside the profile pipe (1) spar so it rests on the inner walls of the profile tube (1) spar. Extreme position of the screwed connecting means (3) is defined by a stop the inner sloping side wall profile of the pipe (1) side member. Carrier mounting body (2) in the region facing the nut (4), it is in its upper surface, measure also the spherical bearing surface, wherein the position of the center of the surface fastening body (2) corresponds to the position of the center of the spherical bearing surface of the nut (4) and at the same time be an extension of the axis connector (3). The mounting body (2) is further formed conical or oval through-hole (7) or a combination of both shape, for tilting the coupling means (3) to the desired direction in a functional position of its insertion into the opening (7) and screwed into a nut ( 4) in the inner area of ​​the tube (1) longitudinal load carrier, wherein said connecting means (3) further passes through the opening in the roof (6) of the vehicle and is fastened to the reinforced part of the vehicle body. The nut (4) is made of the parallelogram blank into which it is extruded through holes. It is produced in the molding composition of the steel strip. Through holes in the finished extruded, then pressed in the opening thread. Spherical bearing surface is formed finally pressing.