Patent ID: 8579099

Claim:
A parking lock device for a motor vehicle, the parking lock device comprising: a parking lock gearwheel ( 1 ) with teeth ( 3 ) and tooth gaps ( 4 ) and a parking lock pawl ( 2 ) with a pawl tooth ( 5 ), the parking lock gearwheel ( 1 ) undergoing a rotation movement with rotation angle (φ) and rotational speed (φ-dot) about a rotational axis and the parking lock pawl ( 2 ) undergoes a pivoting movement with pivoting angle (ω) and pivoting speed (ω-dot) around a pivot axis arranged parallel to the rotational axis; the teeth of the parking lock gearwheel each have a first flank that connects to a tip contour at a first point and a second tooth flank that connects to the tip contour at a second point, the first and the second points are located at opposite sides of the contour in relation to the rotational movement of the parking lock gearwheel, the first point of the contour defines an inner radius of the parking lock gearwheel and the second point defines an outer radius of the parking lock gearwheel that is greater than the inner radius of the parking lock gearwheel; such that above a predefined drop-in speed, the parking lock pawl ( 2 ) is rejected by the teeth ( 3 ) of the parking lock gearwheel ( 1 ) and therefore undergoes an oscillating pivoting movement; and the parking lock gearwheel ( 1 ) and the parking lock pawl ( 2 ) are kinematically linked, during relative motion, with one another by a linear relationship between the pivoting angle (ω) and the rotational angle (φ).