ES284221U - Block-unlock device for rolling tables or cabinets (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Locking-unlocking device for tables or rolling cabinets, which being of the type acting on a transverse rod provided at their ends with vertical locking rods, intended to or not affect the wheels of the rolling element, is essentially characterized in that it consists of a base fork, made of corrugated sheet, in which it is fixed by its mouth to the base of the rolling element, in the breast it plays a second fork, this with its concavity oriented downwards, of portal in l, which joins together the base fork by the lower end of one of its branches, while the free end of its other branch impinges on said rod terminated in the blocking rods, having provided that the area of the second fork corresponding to its kink and with the collaboration of a transverse axis, of associating a drive pedal, with the particularity that said pedal and near said axis, are joined, c on the collaboration of another axis, a pair of lateral rods connecting the mentioned pedal with the base fork, through a fixed axle established between the lateral branches of the latter, all in such a way that between the articulated joint axis of the pedal the complementary fork, the axis of connection to said pedal of the connecting rods and the axis of connection of said rods to the base fork, a deformable triangle is established in which a downward pressure on the pedal causes the displacement of the intermediate shaft, the unión of the connecting rods to the pedal, towards the plane of unión between the des axes, slightly exceeding this plane and determining a stable situation in which the complementary fork is forced to swing on its corresponding axis of attachment to the base fork, towards a blocking situation for the rods established for this purpose. (Machine-translation by Google Translate, not legally binding)