Continuously variable transmission and method for operating a continuously variable transmission

A continuously variable transmission (1), comprising:

• a transmission stage (2, 3, 4), which has a driving shaft (5, 6) which rotates about a first rotation axis and a driven shaft (7, 8) which rotates about a second rotation axis,
• a driving cam disk (9, 10) coupled to the driving shaft (5, 6) and a driven cam disk (11, 12) coupled to the driven shaft (7, 8),
• the driving cam disk (9, 10) and the driven cam disk (11, 12) are coupled to one another in terms of movement via at least one force-transmitting element (13, 14),
• the driving cam disk (9, 10) and the driven cam disk (11, 12) each have a spiral-shaped outer contour (15, 16, 17, 18),
• the outer contour (15, 16) of the driving cam disk (9, 10) is arranged in a first plane, which is oriented perpendicular to the first rotation axis,
• the outer contour (17, 18) of the driven cam disk (11, 12) is arranged in a second plane, which is oriented perpendicular to the second rotation axis,
• the transmission stage (2, 3, 4) is implemented twofold, and the cam disks (9, 10, 11, 12, 49, 50) of a first implementation (72, 74) of the transmission stage (2, 3, 4) are, during operation, able to swing in a phase-offset manner in relation to the cam disks (9, 10, 11, 12, 49, 50) of a second implementation (72, 74) of the transmission stage (2, 3, 4),
• a changeover device (33) is formed, by which a rotational movement of the driving shaft (5, 6) is converted into a phase-offset swinging movement of mutually corresponding cam disks (9, 10, 11, 12, 49, 50) of the first and second implementations (72, 74) of the transmission stage (2, 3, 4), and
• a reconverter configured to combine the phase-offset swinging movement of the mutually corresponding cam disks (9, 10, 11, 12, 49, 50) of the first and second implementations (72, 74) of the transmission stage (2, 3, 4) into a rotational movement of the driven shaft (7, 8).