Method for preventing the clearance between two parts of a mechanism linked to one another with a certain play

The invention relates to a method for preventing the clearance between two parts of a mechanism linked to one another with a certain play, applicable to mechanisms for coupling a pedal body (2) to a main rotation shaft in which a first part (3) is rotatably assembled between the two facing branches (4a,4b) of a second part (4), the mechanism comprising a frangible pin (5) to immobilize the rotation of the first part with respect to the second part, and in which the first part rests applied against one of the branches of the second part and is prevented from moving towards the opposite branch by an accumulation of the material from which the frangible pin is formed, resulting from a plastic deformation experienced by the latter during the operation of sliding along the through hole of the first part.