KUPPLUNGSUNTERSTÜTZUNG

The assistance system is composed of two bases (3) and (4), base (3) being jointed to the pedal assembly support bracket (1) and base (4) to the actual pedal (2), while the compression springs (5) and (6) are fitted between the two bases (3) and (4), one inside the other, and base (4) is able to slide in relation to the fixed base (3) when the pedal (2) is depressed, one of said springs having a smaller free length, so that in the first part of the pedal travel the assistance curve is the sum of the curves that would be generated individually by springs (5) and (6) whilst in the final section of the pedal travel one of the springs ceases to act, with the result that the assistance curve corresponds to that generated by one of the springs only.