Sub-assembly for blocking or releasing a door lock

The invention relates to an assembly for a door lock which is provided for locking or releasing the door lock, with a two-part mandrel, wherein a first mandrel part has a first end portion and a second mandrel part has a second end portion, a coupling element for connecting the first end portion to the second end portion, comprising a guide piece and a coupling piece, wherein the coupling piece and the second end portion provide a positive connection between the coupling piece and the second end portion in a first position, and wherein the coupling element in the second Position is spaced from the second end portion, a transfer element movable between a clutch position and a home position, provided to urge the clutch element to the second position, - A transfer device, which is adapted to move the transfer element from the coupling position to the home position and vice versa.