Transmission for a motorcycle, and motorcycle comprising such a transmission

Patent metadata

Field	Value
Publication number	US-11840299-B2
Application number	US-201916960172-A
Country	US
Kind code	B2
Filing date	Jan 29, 2019
Priority date	Feb 13, 2018
Publication date	Dec 12, 2023
Grant date	Dec 12, 2023

Abstract

A transmission for a motorcycle includes a housing; at least one shaft at least partially accommodated in the housing, a locking device which has at least one first locking element which can be rotated with the shaft and at least one second locking element which can be moved relative to the housing, relative to the shaft, and relative to the first locking element. The second locking element can move between at least one release position in which the locking elements do not engage in one another and the shaft is released for rotation, and at least one locking position in which the locking elements engage in one another to secure the shaft against rotation relative to the housing. The transmission further includes an actuating device configured to move the second locking element out of the release position into the locking position via at least one intermediate position.

First claim

What is claimed is:

1. A transmission for a motorcycle, comprising:
a housing;
at least one shaft at least partially within the housing, the at least one shaft being rotatable relative to the housing about a rotational axis;
a locking device having at least one first locking element configured to co-rotate with the shaft and at least one second locking element movable along a movement direction relative to the housing, relative to the shaft and relative to the at least one first locking element between
at least one released position in which the locking elements are not engaged and the shaft is released for a rotation relative to the housing, and
at least one locked position in which the locking elements engage into one another and the shaft is secured against a rotation relative to the housing;

an actuating device configured to move the at least one second locking element out of the released position into the locked position via at least one intermediate position which lies between the released position and the locked position;
a safety device which, when the actuating device is actuated, permits a movement of the at least one second locking element out of the intermediate position to the at least one released position, the safety device including at least one deflector face on at least one of the locking elements and runs obliquely with respect to the movement direction, wherein
when the actuating device is actuated, the at least one second locking element is movable out of the intermediate position into the at least one released position as a result of a contact of the at least one deflector face on the other of at least one locking element due to rotation of the shaft about the rotational axis, and
the actuating device has at least one actuating element configured to be movable relative to the housing out of a starting position into an actuating position; and

a restoring device configured to move the actuating element out of the actuating position into the starting position, wherein
the restoring device includes at least one magnet configured to move the actuating element out of the actuating position into the starting position.

2. The transmission according to claim 1 , wherein
the safety device has a spring element which supports the at least one second locking element on the actuating element in the movement direction, and
the spring element is configured to permit movement of the at least one second locking element into the released position when the at least one deflector face generates movement relative to the actuating element along the movement direction.

3. The transmission according to claim 1 , wherein
the restoring device has at least one spring device which supports the actuating element on the housing, and
the at least one spring device is stressed at least in the actuating position such that the at least one spring device generates a spring force useable to move the actuating element out of the actuating position into the released position.

4. The transmission according to claim 1 , wherein
the actuating element is coupled to the at least one second locking element such that the actuating element is able to move the second locking element from the actuating position into the released position.

5. The transmission according to claim 4 , wherein
the actuating device includes an actuating housing and an actuator arranged in the actuating housing,
the actuating device is electrically drivable,
the actuating device is configured to move actuating element relative to the actuating housing out of the starting position into the actuating position,
the actuating element and the at least one second locking element which is movable along the movement direction relative to the actuating housing are held on the housing of the transmission at least via the actuating housing, and
when the actuating device is actuated, the safety device is configured to permit the movement of the at least one second locking element into the released position, along the movement direction relative to the housing of the transmission, and to permit the movement of the actuator, the actuating element and the second locking element with the actuating housing.

6. The transmission according to claim 5 , wherein
the actuating device is a preassembled module configured to be mounted in a preassembled state on the housing of the transmission.

7. A motorcycle, comprising:
at least one drive motor; and
a transmission configured to be driven by the at least one drive motor, the transmission including
a housing;
at least one shaft at least partially within the housing, the at least one shaft being rotatable relative to the housing about a rotational axis;
a locking device having at least one first locking element configured to co-rotate with the shaft and at least one second locking element movable along a movement direction relative to the housing, relative to the shaft and relative to the at least one first locking element between
at least one released position in which the locking elements are not engaged and the shaft is released for a rotation relative to the housing, and
at least one locked position in which the locking elements engage into one another and the shaft is secured against a rotation relative to the housing;

an actuating device configured to move the at least one second locking element out of the released position into the locked position via at least one intermediate position which lies between the released position and the locked position; and
a safety device which, when the actuating device is actuated, permits a movement of the at least one second locking element out of the intermediate position to the at least one released position, the safety device including at least one deflector face on at least one of the locking elements and runs obliquely with respect to the movement direction, wherein
when the actuating device is actuated, the at least one second locking element is movable out of the intermediate position into the at least one released position as a result of a contact of the at least one deflector face on the other of at least one locking element due to rotation of the shaft about the rotational axis, and
the actuating device has at least one actuating element configured to be movable relative to the housing out of a starting position into an actuating position; and

a restoring device configured to move the actuating element out of the actuating position into the starting position, wherein
the restoring device includes at least one magnet configured to move the actuating element out of the actuating position into the starting position.

8. The motorcycle according to claim 7 , wherein
the safety device has a spring element which supports the at least one second locking element on the actuating element in the movement direction, and
the spring element is configured to permit movement of the at least one second locking element into the released position when the at least one deflector face generates movement relative to the actuating element along the movement direction.

9. The motorcycle according to claim 7 , wherein
the restoring device has at least one spring device which supports the actuating element on the housing, and
the at least one spring device is stressed at least in the actuating position such that the at least one spring device generates a spring force useable to move the actuating element out of the actuating position into the released position.

10. The motorcycle according to claim 7 , wherein
the actuating element is coupled to the at least one second locking element such that the actuating element is able to move the second locking eleme

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Jauch Thilo
• Miritsch Josef
• Seidl Josef
• Stocker Roland

Classifications

• B62H5/08 Primary

  preventing the drive (by acting on powered drive B62M) · CPC title

• B60Y2200/12

  Motorcycles, Trikes; Quads; Scooters · CPC title

• B62M7/04

  below the frame · CPC title

• F16H63/3458

  with electric actuating means, e.g. shift by wire · CPC title

• B62M11/04

  of changeable ratio · CPC title