Push-and-turn latching control button, in particular for operating an electrical component

Control button comprising a guide body adapted to be mounted on a support of any kind, a piston adapted to operate an underlying component of any kind and mobile in said guide body against return spring means, a control member mobile axially relative to said guide body between an "out" inoperative position and an "in" operative position and including a head for operation by a user and a spindle for operating said piston, and a retaining ring around said spindle of said control member, fixed axially relative to said guide body and prevented from rotating relative thereto, with, subordinate to said retaining ring, hooking means adapted to hold said control member releasably in its "in" position in respect to action applied thereto and cam means adapted to return said control member to an original angular position when released after being turned in its "in" position to disengage said hooking means, said control member being associated with a position indicator mobile between a retracted position when said control member is in its "out" position and a deployed position when said control member is in its "in" position and at least a portion of the control member being concealed in its retracted position and being revealed in its deployed position, said position indicator being rotatable about said spindle of said control member and including a hub disposed around and rotating on said spindle of said control member and keyed axially thereto, and a flange disposed under said head of said control member, said head of said control member having at least one localized opening in a path of movement of said flange.