Patent ID: 8997596
Filing Date: 2015-04-07
Classification: F16H,Y10T

Abstract:
1. An interlocking device arranged to prevent forbidden order of engagement/disengagement of two tooth clutches in a vehicle transmission, where each tooth clutch when in an engaged position is arranged to rotationally lock a first shaft to a gearwheel or to a second shaft and when in a disengaged position to rotationally unlock the first shaft from the gearwheel or the second shaft, where for each tooth clutch a shift rod is arranged to push the tooth clutch between the engaged position and the disengaged position, and where the interlocking device comprises: a groove arranged in a first of the shift rods, and a second and a third groove arranged in a second of the shift rods, an interlocking element arranged coplanar with the shift rods, and directed and movable towards the shift rods; and where a length of the interlocking element is adapted to allow certain combinations and order of engagement/disengagement of the tooth clutches, wherein an element partitions the second and third groove and where the element is movably arranged in a hole in the second shift rod such that the interlocking element can push the element down in the hole, allowing the second shift rod to be displaced only one-way when the first shift rod is in an engaged position.