ES450293A1 - Improvements in locks with door and similar push-buttons. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improvements in locks with push button for doors and the like, comprising at least one hollow knob for the movement of the door fixed rigidly in the same door, a push button on the knob for the control of the latch, said button being movable with respect to the knob, a support within the knob cavity and a system of levers, commanded by said button, mounted on said support to actuate the latch of said lock by means of said push button, the latch being elastically slidable at least in one predetermined distance within a housing inserted in the thickness of the door, characterized in that the latch (9) is rigidly connected to a first sheet-shaped slider (27) provided with a slit (29) extending parallel to the direction of movement of the latch, said first cursor (27) being slidably superimposed on a second slider (30) in the form of a sheet, counter elastically in the direction of movement of the latch and guided on a wall (14a) of said housing (14) inserted in the thickness of the door (3) and likewise provided with the corresponding slit (31) that corresponds at least partially to the slit (29) of the first slider (27) and of means (10) for the connection with said system of levers (7, 8, 8a) actuated by the push button (6), said slider (27) being provided., on its periphery, of a hollow (51) engaged with the end (49) of a lever (50) oscillating around a knob (37) rigidly guided in cantilever by said wall (14a) of the housing and also being provided with a sheet-shaped frame (38) oscillatingly mounted around a knob (39) driven by said first cursor (27), said frame (38) being provided with a profiled groove (45), superimposed at least partially to said grooves of the first and second cursor and being further provided, in its outer contour of a cam profile (48) engaging with the same end (49) of the said lever, oscillating (50), a pin (47), fixed on the wall (14a) of said housing through the grooves of the first and second slider as well as of the aforementioned oscillating frame to constitute a rectilinear sliding guide and end-of-travel stops for said first and second slider, the inner contour of the slit of the oscillating frame of a projection being provided ( 46) suitable to form stop on one side and another of said fixed pin (47), in accordance with the position adopted by the first cursor with respect to the second, elastic means (42) being provided to push said frame (38) with its cam profile (48) against the end (49) of said oscillating lever (50) and kinematic means (17, 54, 55, 56, 57) being provided for oscillating said lever in dependence on a control (18)., 20) on the outside of the knob. (Machine-translation by Google Translate, not legally binding)