ES279177U - Closure device for doors and roller blinds, perfected (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Closing device for rolling doors and pesianas, perfected, of the type that have a female part embedded in the ground, through which runs stem assisted by a spring and equipped with means for anchoring the door and that is susceptible of flush or emerge from the mouth of the former, essentially characterized in that the rod has an annular recess near its free end in which the displaceable cylindrical piece, located in the element of the complementary door of the closure, will be retained, having the inner end of the rod a threaded axial bore for the fixation of a pin retained by a nut with two radial wings emerging from the periphery of the rod; having in the female part, in the form of a bushing sealed by its lower face, an internal thread at its upper end for the fixing of a threaded plug that flush with its mouth and two nuts with external threading, having a cap and nuts, an axial perforation for stem guidance; the push spring of the shank being disposed with one end around the shank and with a stop on the shank nut, while the other end is around a shank, axial and emergent from the bottom of the female part; the stroke of the rod is limited between an emergency position when its nut in the lower nut of the female part stops, and a position of flush with the ground in which the shank of the rod abuts the bottom lug, being able to hold in this last position, when making a quarter turn by diametral grooving of its free face, when the wings of its nut are left behind two projections disposed in diametrical opposition in the corresponding area of the female part. (Machine-translation by Google Translate, not legally binding)