Crank transmission with a crankshaft for connection to at least one foot-operated or hand-operated crank

A transmission, comprising:

• a shaft, and
• at least one wheel driven by means of the shaft,
• wherein a coupling unit is provided between the shaft and the wheel,
• wherein the coupling unit under load at least temporarily has an angular offset between a crank-side receiving region and an output region connected to the wheel for receiving and outputting the torque introduced into the shaft,
• wherein a transducer unit is provided for converting the angular offset into a change in a magnetic flux, and wherein a magnetic field-sensitive sensor is provided for detecting the angular offset,
• wherein the transducer unit comprises at least one magnet and two magnetic guide elements that can be rotated with respect to each other, wherein the guide elements, within an air gap, change the shape of the air gap in an angle-dependent manner by their shape and their relative angular position,
• wherein the coupling unit comprises a torsion element,
• wherein the torsion element is connected in a rotationally fixed manner to the at least one wheel at a connection point in the output region by means of a connecting element,
• wherein the connecting element extends from a cavity of the shaft through a passage in a wall of the shaft, and
• wherein the torsion element is connected in a rotationally fixed manner to the shaft at a connection point in the receiving region.