Shift drum arrangement
AssigneeDr. Ing. h.c. F. Porsche Aktiengeslellschaft
InventorKlaus Gausrab
Life of this patent
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Abstract
A shift drum arrangement includes a shift drum with at least one first shift gate and/or a shift drum path for actuating at least one shift element of a transmission, in particular of a motor vehicle. A blocking device has a blocking gate and a blocking pin which engages in the blocking gate. The blocking gate has a labyrinth contour, and therefore the blocking pin strikes against a stop contour in one direction of rotation of the shift drum and blocks the further rotation of the shift drum. The block is released after the shift drum is partially rotated back in the reverse direction of rotation.
Claims10
A shift drum arrangement comprising:
- a shift drum with at least one first shift gate or a shift drum path for actuating at least one shift element of a vehicle transmission,
- a blocking device having a blocking gate and having a blocking pin which engages in the blocking gate, wherein the blocking gate has a labyrinth contour,
- wherein the blocking pin is configured to strike against a stop contour in one direction of rotation of the shift drum and block further rotation of the shift drum, and
- wherein the blocking pin is configured to be released after the shift drum is partially rotated back in a reverse direction of rotation and then the blocking pin is configured to reach a parking position after the shift drum is rotated back in said one direction of rotation of the shift drum.
A shift drum arrangement comprising:
- a shift drum with at least one first shift gate or a shift drum path for actuating at least one shift element of a vehicle transmission,
- a blocking device having a blocking gate and having a blocking pin which engages in the blocking gate, wherein the blocking gate has a labyrinth contour,
- wherein the blocking pin is configured to strike against a stop contour in one direction of rotation of the shift drum and block further rotation of the shift drum, and
- wherein the blocking pin is configured to be released after the shift drum is partially rotated back in a reverse direction of rotation,
- wherein the blocking pin is part of a blocking lever which is loaded into the blocking gate in an axial direction of the shift drum or in the radial direction of the shift drum.
Dependencies are inferred from the claim text.