ES149349U - Perfected coupling pin for telescopic tubes. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improved coupling pin for telescopic tubes, characterized in that it comprises a rod one of whose ends is turned according to a semicircle of internal radius equivalent to the outside of the tube to be coupled; the other end has a curvature equivalent to a quadrant of the same radius, and at its end is joined a cylindrical shank, parallel to the straight section between both curvatures and directed towards the greater, so that between both ends can pass the tube just ; the cylindrical shank is provided with a deep diametrical notch perpendicular to the plane determined by the curved ends of the rod, said notch leaves without dismembering a small lower portion located at the end of the shank, and which relates, as a bridge, to the sides established by the notch; a transverse pin which supports a tongue of the same width as the thickness of the shank, which is provided with a longitudinal central slot through which the support pin slides, as well as a notch made in the edge that runs along the sides, stretches between both sides. Faces the lower end portion joining the sides of the stem, so that when said tongue adopts a position aligned with the stem, said portion is housed in the notch and the support pin in the rear part of the slot, thereby the permanence of the position is ensured until, once the strut is assembled by passing the tongue and stem through any of its diametrical orifices, it becomes vascular to the tongue until it remains in a transverse position making the remaining strut blockage provision to receive coaxially another tube by telescopic assembly. (Machine-translation by Google Translate, not legally binding)