Patent ID: 8516923

Claim:
An automatic pedal of a bicycle, comprising: a pedal body ( 1 ); and a pedal shaft ( 2 ), the pedal body being rotationally mounted on the pedal shaft; said pedal body ( 1 ) comprising a catch ( 4 , 6 ) of a retaining plate ( 3 ), said catch being comprised of a fixed front catch element ( 4 ) and a movable rear catch element ( 6 ) that is mounted to pivot on said pedal body ( 1 ) around an axis of rotation ( 9 ) that is essentially parallel to said pedal shaft ( 2 ) between a retaining position of said plate ( 3 ) engaged between said front and rear catch elements ( 4 , 6 ), and a position of release of said plate ( 3 ) by the pivoting of said rear catch element ( 6 ) in opposition to an action of an elastic return element ( 10 ) that is located in a housing ( 11 ) of the pedal body ( 2 ), of which one end of the elastic return element ( 10 ) is connected to said rear catch element ( 6 ), while another end of the elastic return element ( 10 ) is connected to said pedal body ( 1 ), wherein said elastic return element ( 10 ) comprises an elongate elastic return element ( 10 ) that extends in a longitudinal plane relative to said pedal body ( 1 ) so as to be stressed along a longitudinal axis of the elongate elastic return element ( 10 ) in buckling by the rear catch element ( 6 ) when the rear catch element ( 6 ) is pivoted towards the position of release of said retaining plate.