Adjustment mechanism and wheel drive

1. A gearshift for adjusting a traction means ( 140 ) on a gear set which can be rotated around an axle ( 4 ), the gear set including two or more sprockets ( 110 , 120 ) around which the traction means ( 140 ) may loop, the gearshift comprising:

at least one adjustment element that co-rotates with the gear set, wherein the at least one adjustment element is configured to be moved into a rolling motion of the traction means ( 140 ) to cause movement of the traction means ( 140 ) from one of the sprockets ( 110 , 120 ) of the gear set to another of the sprockets ( 110 , 120 ) of the gear set;

wherein the adjustment element is pivotable around an axis of rotation that extends in a radial direction relative to the axle ( 4 ); and

wherein the adjustment element comprises a switch ( 130 ) having a rotating shaft ( 320 ) that extends along the axis of rotation and wherein the switch ( 130 ) extends from a side of the rotating shaft ( 320 ).

2. The gearshift according to claim 1 , wherein the switch ( 130 ) has a first switch segment ( 10 ) and a second switch segment ( 12 ), each of which extends in a peripheral direction and in a direction away from the rotating shaft ( 320 );

wherein the first switch segment ( 10 ) is arranged further inward in a radial direction relative to the second switch segment; and

wherein the first switch segment ( 10 ) is arranged at an angle to the second switch segment ( 12 ).

3. The gearshift according to claim 1 , wherein a first switch segment ( 10 ), when seen from a radial direction relative to the axle ( 4 ), is arranged after a smaller first sprocket ( 120 ) and a second switch segment ( 12 ) after a larger second sprocket ( 110 ).

4. The gearshift according to claim 1 , wherein a first switch segment ( 10 ) extends in a first shift position transversely to a smaller first sprocket ( 120 ) to switch the traction means from the smaller first sprocket ( 120 ) to a larger second sprocket ( 110 ) and wherein a second switch segment ( 12 ) extends in a second shift position transversely to the larger second sprocket ( 110 ) to switch the traction means ( 140 ) from the larger second sprocket ( 110 ) to the smaller first sprocket ( 120 ).

5. The gearshift according to claim 1 , further comprising a fixed control ( 350 ) configured to be brought into a selected position and movable into a rotational plane of an extension ( 340 ) of the adjustment element to physically push the adjustment element into a preferred position.

6. The gearshift according to claim 1 , further comprising a rotation-decoupled, partially co-rotating and partially fixed control, detachable by use of a bearing, such that the control is permanently in engagement and achieves adjustment of the adjustment element.

7. The gearshift according to claim 1 , further comprising a spring element ( 360 ) configured to move the adjustment element across a dead center to a respective end position and thus prevent an intermediate position.

8. The gearshift according to claim 1 , whereby the adjustment element has an extension ( 10 ) which catches with the traction means ( 140 ) in a rotation and further deflects an actual part ( 12 ) of the adjustment element that redirects the traction means ( 140 ).

9. The gearshift according to claim 1 , further comprising a drive for a vehicle with a driving gear train, wherein the driving gear train comprises only one gearshift according to claim 1 .

10. A gearshift for adjusting a traction means ( 140 ) on a gear set which can be rotated around an axle ( 4 ), the gear set including two or more sprockets ( 110 , 120 ) around which the traction means ( 140 ) may loop, the gearshift comprising:

at least one adjustment element that co-rotates with the gear set, wherein the at least one adjustment element is configured to be moved into a rolling motion of the traction means ( 140 ) to cause movement of the traction means ( 140 ) from one of the sprockets ( 110 , 120 ) of the gear set to another of the sprockets of the gear set ( 110 , 120 ); and

an electrical co-rotating control configured to adjust the adjustment element.

11. The gearshift according to claim 10 , wherein the adjustment element comprises a switch pivotable around an axis of rotation ( 24 ) which is radially spaced from the axle ( 4 ) and is located on a plane that extends in a transverse direction relative to the axle ( 4 ).

12. The gearshift according to claim 11 , further comprising a shifter ( 22 ) of the switch ( 20 ) that extends away from the axis of rotation ( 24 ), which is radially spaced relative to the axle ( 4 ) between the sprockets ( 430 , 440 );

wherein a first switch segment ( 26 ) protrudes from the shifter ( 22 ) and is arranged radially outside of a smaller first sprocket ( 430 ); and

wherein a second switch segment ( 28 ) protrudes from the shifter ( 22 ) and is arranged radially outside of a larger second sprocket ( 440 ).

13. The gearshift according to claim 12 , wherein the first switch segment ( 26 ) extends in a first shift position transversely to the smaller first sprocket ( 430 ) to switch the traction means from the smaller first sprocket ( 430 ) to a larger second sprocket ( 440 ), and wherein the second switch segment ( 28 ) extends in a second shift position transversely to the larger second sprocket ( 440 ) to switch the traction means ( 420 ) from the larger second sprocket ( 440 ) to the smaller first sprocket ( 430 ).

14. The gearshift according to claim 10 , wherein, as seen from an axial direction, a first switch ( 630 ) is arranged on a smaller side ( 32 ) of the gear set ( 30 ) and a second switch ( 620 ) on the other, larger side ( 34 ) of the gear set; and

wherein the first and second switches ( 620 , 630 ) reach across the gear set; and

wherein the traction means ( 640 ) can be shifted toward the larger side ( 34 ) by the first switch ( 630 ) and the traction means ( 640 ) can be shifted toward the smaller side ( 32 ) by the second switch ( 620 ).