surface because the force vector goes through the point of contact between the plunger and the friction surface and because the plunger is already supported by the plunger pin the length of the elongated tubular section 62 of the plunger that is required is reduced ideally the plunger would not require an elongated section because the force vector holds the plunger pin in contact with the plunger supported by the pin as the force vector does not change the direction but only its magnitude the pin is always pressed against the plunger and this results in a very smooth movement of the plunger up and down the pin testing of a pedal mechanism according to the present invention has shown a very repeatable force hysteresis over time and also with variations in temperature without any noise or u2018 stick slip u2019 fig7 shows a partial cross section of a schematic depiction of a pedal mechanism according to a further embodiment of the present invention as seen from the front fig7 shows the pedal 25 connected to the pedal arm 20 the plunger pin 40 received within the plunger 60 the recessed channel 52 for receiving the plunger pin and the.