Heel automat (1, 101) for a sl<ibinding, in particular a touring sl<ibinding, comprising a heel holder (3, 103) with two holding means (4.1, 4. 2, 104) for holding a sl<iboot in a heel region of the ski boot, a pretensionable elastic pretensioning element for generating a pretensioning force and a transmission element for transmitting the pretensioning force, wherein the heel automat (1, 101) has a downhill configuration in which the heel holder (3, 103) is in a holding position and the two holding means (4. 1, 4.2, 104) can interact with the heel area of the sl<iboot held in the sl<ibinding in such a way that the heel area of the sl<iboot is held down in a lowered position, a) wherein the two holding means (4.1, 4.2, 104) each have an arm (41.1, 41.2) with a holding end and a holding element (42.1, 42.2) arranged at the holding end of the respective arm (41.1, 41.2) for holding the ski boot in the heel region of the sl<iboot, wherein b) the two holding means (4.1, 4.2, 104) are movable relative to one another, whereby a distance between the two holding elements (42.1, 42.2) is variable, wherein the two holding elements (42.1, 42. 2) can be biased with a holding force to a holding distance from one another in order to cooperate with the heel region of the sl<iboot held in the sl<ibinding in the holding configuration of the heel automat (1, 101) and to hold down the heel region of the sl<iboot in the lowered position, wherein c) each holding means (4.1, 4.2, 104) has a sleeve (45.1, 45.2) displaceable along the arm of the respective holding means (4.1, 4.2, 104), wherein the transmission element is pressed against the sleeves (45.1, 45.2) of the two holding means (4.1, 4.2, 104) due to the pretensioning force generated by the elastic pretensioning element in order to pretension the two holding elements (42.1, 42.2) with the holding force to their holding distance, characterized in that d) wherein the sleeves (45.1, 45.2) each have a first control structure (48.1, 48.2), which each interact with a first control counterstructure (49.1, 49.2) of the heel holder (3, 103), wherein the first control counterstructures (49.1, 49.2) are arranged on a housing of the heel holder (3, 103), wherein the sleeves (45. 1, 45.2) with their first control structures (48.1, 48.2) are pressed against the first control counterstructures (49.1, 49.2) by the transmission element due to the pretensioning force generated by the elastic pretensioning element, in order to pretension the two holding elements (42.1, 42.2) with the holding force to their holding distance. a) wherein the two holding means (4.1, 4.2, 104) each have an arm (41.1, 41.2) with a holding end and a holding element (42.1, 42.2) arranged at the holding end of the respective arm (41.1, 41.2) for holding the ski boot in the heel region of the sl<iboot, wherein b) the two holding means (4.1, 4.2, 104) are movable relative to one another, whereby a distance between the two holding elements (42.1, 42.2) is variable, wherein the two holding elements (42.1, 42. 2) can be biased with a holding force to a holding distance from one another in order to cooperate with the heel region of the sl<iboot held in the sl<ibinding in the holding configuration of the heel automat (1, 101) and to hold down the heel region of the sl<iboot in the lowered position, wherein c) each holding means (4.1, 4.2, 104) has a sleeve (45.1, 45.2) displaceable along the arm of the respective holding means (4.1, 4.2, 104), wherein the transmission element is pressed against the sleeves (45.1, 45.2) of the two holding means (4.1, 4.2, 104) due to the pretensioning force generated by the elastic pretensioning element in order to pretension the two holding elements (42.1, 42.2) with the holding force to their holding distance, characterized in that d) wherein the sleeves (45.1, 45.2) each have a first control structure (48.1, 48.2), which each interact with a first control counterstructure (49.1, 49.2) of the heel holder (3, 103), wherein the first control counterstructures (49.1, 49.2) are arranged on a housing of the heel holder (3, 103), wherein the sleeves (45. 1, 45.2) with their first control structures (48.1, 48.2) are pressed against the first control counterstructures (49.1, 49.2) by the transmission element due to the pretensioning force generated by the elastic pretensioning element, in order to pretension the two holding elements (42.1, 42.2) with the holding force to their holding distance.