ES295343U - Perfect mechanism of opening-closing for doors and similar. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improved mechanism of opening-closing for doors and the like, of the type of automatic return for actuation of a slip or latch thereof, comprising a shield or support with a hole for urinal crank or handle with a drive shaft dockable to the bolt rod; a bushing that limits the rotation of the rod, coaxially coupled to the drive shaft; a reset helical spring, with initial and final ends curved in the manner of pins, also coaxial to said bushing; and a fixing washer, characterized in that in the rear part of the shield is provided a stop pin projecting perpendicularly to the rear to limit the rotation of the latch and also to retain one of the pins of the aforementioned helical spring, where the limiting bushing in its lower side surface, it has at least two cooperating indentations of grooves made for this purpose on the axis of the latch in order to rotatably secure said two elements, two projections arranged around the periphery of the bushing at the ends of an arc slightly greater than 90 [deg.] limit in cooperation with the perpendicular stop of the shield, the rotation of the handle or latch, and two flange portions that are detached subsequently, the first for retaining the other pin of the helical spring and the second for supporting the lateral surface of said helical spring; and in that said assembly is secured against the longitudinal restoring force of the spring by means of a fixing washer with a plurality of retention nails directed obliquely inwardly coupled on the outer periphery of the shaft of the latch. (Machine-translation by Google Translate, not legally binding)