Operating mechanism for operating vehicle doors

An actuating mechanism for opening a vehicle door, wherein the actuating mechanism comprises:

• an actuator;
• a kinematics for transmitting a movement of the actuator to a signal transmitter, wherein the kinematics comprises a cam disk;
• and
• a biasing element biased against the cam disk,
• wherein the cam disk is configured to rotate about an axis with respect to the biasing element, wherein the cam disk is configured such that the biasing element encounters a first feature that impedes rotation of the cam disk and then the biasing element encounters a second feature that impedes rotation of the cam disk,
• wherein the cam disk and the biasing element are configured such that the first feature defines a threshold for a first force and the second feature defines a threshold for a second force,
• wherein, as the cam disk rotates, the threshold for the first force must be overcome for the cam disk to continue to rotate,
• wherein, subsequently, the second force must be overcome for the cam disk to continue to rotate,
• wherein the kinematics is configured such that a first rotation of the cam disk serves to activate the signal transmitter, and
• wherein the kinematics is configured such that a second rotation of the cam disk serves to activate an emergency release.