The proposal is for a brake pedal mechanism for motor vehicles, the pedal frame of which is secured to a brake servo or a bodywork wall. A brake pedal designed to actuate the brake servo is pivot mounted in the pedal frame. In order largely to prevent the risk of foot injury in the event of a collision, according to the invention the bearing positions for the pivot (7) of the brake pedal (6) take the form of crank-like guides (11) in which the pivot (7) is secured by a securing member (12) which, when moved by the effect of a force arising during a collision, releases the pivot (7).
