Perfected creams actuator device, of the devices consisting of a rotating handle (1) that, installed in a support (2-3-4) anchored to the mobile frame (11) of a window or similar, this handle (1) rotately rolled a coaxial corona dented (5) engranada with a zipper (6) which is scroll through such mobile frame (11) and has associated an armed driver arm of the cremona mechanism, characterizing himself because said arm associated to the zipper (6) is constituted by two semi-big, fixed (7) and mobile (8) semi-roots, related between telescopically through an impelling spring (9); said semibrazo fixed (7) being solidary with said zipper (6) and having thickness and length such that, these thickness has sliding adjustment regarding the width of a slider (15) of such support (2-3-4), which it covers all the effective longitudinal trail of said zipper (6), and such a length situates the extreme free of such fixed semi-brazing (7) saving a convenient dimensional game (12) with respect to the fixed frame (10) of said window or similar when on it closed said mobile frame (11), and said fixed semibrazzo (7) having transversal section in "C" opening closer than the interior; said mobile semi-brake (8) having a transverse section adjusted sliding within the inside of such fixed semi-break (7), said mobile semi-brake (8) having a longitudinal profile in "z", of length conveniently greater than that of six fixed semi-brazing (7) and forming extreme transversal fins, first (13) and second (14) oriented in mutual opposition, said first fin (13) being longitudinally faced and extremely engaged with said extreme free of the fixed semibrax (7), and said second fin (14 ) having adjusted conjunction by default to the perimeter of a first accommodation (16) of said zipper (6) and three seconds of accommodation (17) of such support (2-3-4), all these accommodations (16, 17) communicated with the virtual plot of attachment between said sliding zipper (6) and said static support (2-3-4), and such second accommodations (17) are successive and simerically available through a longitudinal strip that is adjacent to a cost or of such slider (15) and this townhouse to another longitudinal strip traveled by such first accommodation (16) in the displacement of such slider (6); said impeller spring (9) being applied between such fixed semibration (7) and such first fin (13) of the mobile semibration (8), and this impulsor spring (9) being periferically welcome between sendos rebates, first (18) and second ( 19) completely carved in such fixed (7) and mobile (8) semi-breaks; where, such second fin (14) has a thickness that is greater than the depth of such seconds (17) of the support (2-3-4) that is equal or less than the depth of that first accommodation (16) of the slider (15), and said mobile semi-brazy (8) being susceptible of occupying sendas extended and retraid positions that correspond to respective states relatively distinguished and compressed of such impulsor spring (9), such extended position being that such second fin (14 ) it is stayed in one of those said three seconds (17) of the support (2-3-4) and, in time, invading part of such first accommodation (16) of the zipper (6), while such first fin ( 13) extremely covered a dimension that exceeds such dimensional game (12) in a larger quantity that said depth of the second accommodations (17), while this first fin (13) is distanced from such fixed semibration (7) also in something more than this depth of the second accommodations (17), and such retroid position being such that such second fin (14) is fully fitted in that first accommodation (16) of the zipper (6). (Machine-translation by Google Translate, not legally binding)