Joints and connections – Rod end to transverse side of member – Utilizing opposite sides of member
Patent
1991-05-20
1993-03-09
Kundrat, Andrew V.
Joints and connections
Rod end to transverse side of member
Utilizing opposite sides of member
403187, 403252, B25G 300
Patent
active
051921456
ABSTRACT:
A cross coupling arrangement for two bars disposed at right angles to one another and provided with undercut longitudinal grooves, having a screw bearing a head and disposed parallel to the symmetry axis of a longitudinally running bar in an undercut longitudinal groove of same, whose other end engages a nut disposed in an undercut longitudinal groove of the transversely running bar, and whose head abuts against a cylindrical insert which is installed axially in the undercut longitudinal groove of the bar and which has a through-bore for the screw. In other to improve the cross coupling arrangement such that it can be used largely independently of the cross section of the bar that is to be joined, meanwhile keeping the design simple but without impairing the reliability of the junction, the arrangement is designed such that the axis of symmetry of the cylindrical insert is coaxial with the axis of symmetry of the bore through such insert for the screw, and the outside diameter (D) of the insert is so adapted to the cross section (Q) of the undercut longitudinal groove of the bar that the thread provided on the outside circumference of the cylindrical insert is a self-tapping thread cutting into the material of the bar along the length the insert has a transverse bore the intersection of which the threads form cutting edges.
REFERENCES:
patent: 4021129 (1977-05-01), Sykes
patent: 4775259 (1988-10-01), Shell
Pies Gerrit
Rixen Wolfgang
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