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Priority to ES112469UpriorityCriticalpatent/ES112469Y/en
Publication of ES112469UpublicationCriticalpatent/ES112469U/en
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Publication of ES112469YpublicationCriticalpatent/ES112469Y/en
Articulating mechanism for swivel chairs that essentially consists of a tubular column mounted rotatable and axially slidable inside a tubular support with internal fluted walls, transverse and attached to the chair legs, the upper end of whose column protrudes from the tubular support and it is attached to a cup fixed in turn to the base of the chair seat while the opposite end has a conical contour it rests against the internal conical surface of expandable clamps with a transversely grooved outer surface in order to fit into the grooves of the tbular support whose clamps are applied elastically towards the position of coupling to the end of the rotating column and to fit against the grooved walls of the tubular support against whose clamps an unlocking device actuates from the outside by means of a lever in order to release them from the grooved wall allowing the axial slide of the column. (Machine-translation by Google Translate, not legally binding)
ES112469U1965-03-181965-03-18
AN ARTICULATION MECHANISM FOR SWIVEL ARMCHAIRS.
ExpiredES112469Y
(en)