Releasable clamping-type compressive joint

DETAILED DESCRIPTION With respect to the device the object of the invention is achieved by way of the invention in that each of the extrusion flanges, which in cross-section tends to taper in the direction of the longitudinal opening of the groove, features at least one weakening notch running in the longitudinal direction, and clamping cam tips lying on the flange beyond these weakening notches which are plastically deformed after tightening the securing bolt in the region of -- basically parallelogram-shaped -- clamping plates/plate turned 30-60.
degree.
in the groove clamping plate and clamping cam tip are bent an equal distance from the longitudinal opening in the groove and four mechanical steps are formed to give a configurational locking action.
The clamping plates are preferably rotated in the groove by about 45.
degree.
.
An essential difference with respect to the above mentioned patent document GB-PS No.
1503588 is that according to the present invention the continuous section need neither be thin-walled nor uniform in cross-section.
Further, because of the provision of longitudinal weakening notches the section flanges can be plastically deformed instead of, as in GB-PS No.
1503588 the material having to be plastically displaced using the wedge-cone principle.
Finally, according to the present invention use is made of clamping plates which contact the inner wall of the groove after being rotated 45.
degree.
and not 90.
degree.
in order to be brought into a position that is not prescribed by a stop or stops which would mean having to arrange wedges on the clamping plates coming into line with recesses in the component being attached.