Patent attributes
An automatic cycle pedal includes a pedal body (1) rotatably mounted on a pedal axle (2). The pedal body (1) includes attachment means (3, 4) for attaching a retaining plate fixed to the bottom of a cyclist's shoe, having of a fixed front attachment member (3) and a mobile rear attachment member (4) mounted to pivot on the pedal body (1) about a rotation axis (6) between a position retaining the plate engaged between the front and rear attachment members (3, 4), and a position releasing the plate by pivoting of the rear attachment member (4) against the action of an elastic return means. The pedal further includes an adjustment system (8) for adjusting a return force of the elastic return means in order to adjust a shoe attachment/detachment tension. In accordance with the invention, the elastic return means includes a variable number of elastic members (70-72) each having one end connected to the rear attachment member (4) and another end connected to the pedal body (1), selected from a plurality of elastic members (70-72) extending between the rear attachment member (4) and the pedal body (1). The adjustment system (8) is adapted to select the elastic members constituting said elastic return means in order to achieve a predefined shoe attachment/detachment tension value.
